CN118564505A - Compression control system, compression mechanism and compression control method - Google Patents
Compression control system, compression mechanism and compression control method Download PDFInfo
- Publication number
- CN118564505A CN118564505A CN202410943256.XA CN202410943256A CN118564505A CN 118564505 A CN118564505 A CN 118564505A CN 202410943256 A CN202410943256 A CN 202410943256A CN 118564505 A CN118564505 A CN 118564505A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- oil
- reversing valve
- push plate
- slide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/166—Controlling a pilot pressure in response to the load, i.e. supply to at least one user is regulated by adjusting either the system pilot pressure or one or more of the individual pilot command pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with program control derived from a store or timing device; Control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control Of Presses (AREA)
Abstract
The invention discloses a compression control system, a compression mechanism and a compression control method, which belong to the technical field of compression control and are characterized in that: the oil suction port of the hydraulic pump is connected with the hydraulic oil tank, and the oil outlet of the hydraulic pump is connected with the first reversing valve, the second reversing valve and the hydraulic oil tank; the first reversing valve is connected with the slide plate oil cylinder, and the second reversing valve is connected with the push plate oil cylinder; the electric proportional stop valve is connected with the electric proportional overflow valve and then arranged on a connecting oil path of the second reversing valve and the large cavity of the push plate oil cylinder, and an oil outlet of the electric proportional overflow valve is connected with the hydraulic oil tank; the pressure sensor is arranged on a connecting oil path of the first reversing valve and the large cavity of the slide plate oil cylinder; the controller is respectively connected with the first reversing valve, the second reversing valve, the electric proportional stop valve, the electric proportional overflow valve and the pressure sensor; the invention can lighten the oil discharge impact, protect the pipeline, reduce noise and realize different loading capacity.
Description
Technical Field
The invention relates to a compression control system, a compression mechanism and a compression control method, and belongs to the technical field of compression control.
Background
In the garbage collection process of the garbage compression sanitation vehicle, the aim of compacting garbage is fulfilled by utilizing the bidirectional effect of inward scraping force of the compression mechanism on garbage and pushing force of the pushing plate, and when the pressure of a compression cavity of a sliding plate cylinder in the compression mechanism reaches a certain pressure value, the pushing plate cylinder releases pressure and the pushing plate retreats, so that the compression mechanism can collect garbage again.
In the prior art, the push plate retreating pressure is a fixed value, namely the garbage compression ratio is a fixed value, the corresponding loading capacity is a fixed value, and the high-pressure oil is instantaneously released when the push plate oil cylinder retreats, so that impact is caused to a pipeline and a structural member, and impact noise is caused.
Disclosure of Invention
The invention aims to provide a compression control system, a compression mechanism and a compression control method, which solve the problems of impact, noise and load capacity fixation in the garbage compression process in the prior art.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
In a first aspect, the present invention provides a compression control system comprising: the hydraulic system comprises a hydraulic oil tank, a hydraulic pump, a first reversing valve, a pressure sensor, a slide plate oil cylinder, a push plate oil cylinder, an electric proportional stop valve, an electric proportional overflow valve, a second reversing valve and a controller;
An oil suction port of the hydraulic pump is connected with the hydraulic oil tank, and an oil outlet of the hydraulic pump is connected with the first reversing valve, the second reversing valve and the hydraulic oil tank; the first reversing valve is connected with the slide plate oil cylinder, and the second reversing valve is connected with the push plate oil cylinder; the electric proportional stop valve is connected with the electric proportional overflow valve and then arranged on a connecting oil path of the second reversing valve and a large cavity of the push plate oil cylinder, and an oil outlet of the electric proportional overflow valve is connected with the hydraulic oil tank; the pressure sensor is arranged on a connecting oil path of the first reversing valve and the large cavity of the slide plate oil cylinder and is used for detecting the pressure of the large cavity of the slide plate oil cylinder; the controller is respectively connected with the first reversing valve, the second reversing valve, the electric proportional stop valve, the electric proportional overflow valve and the pressure sensor;
When the pressure detected by the pressure sensor reaches the preset pressure, a signal is sent to the controller, and the controller controls the valve port of the electric proportional stop valve to be opened at a preset speed.
Further, the first reversing valve is a three-position six-way valve or a three-position four-way valve.
Further, when the first reversing valve is a three-position six-way valve, two oil ports are normally communicated on a normal position of the first reversing valve and are respectively connected with an oil outlet of the hydraulic pump and the hydraulic oil tank;
When the first reversing valve is in a normal state, oil passes through the first reversing valve to return to a hydraulic oil tank under the drive of the hydraulic pump, and the slide plate oil cylinder does not act;
when the first reversing valve is in an upward position, oil enters a large cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, the slide plate oil cylinder moves upward to drive a slide plate mechanism connected with the slide plate oil cylinder to execute an extending action, and the slide plate mechanism is matched with a push plate mechanism connected with the push plate oil cylinder to execute a compression operation;
when the first reversing valve is in the descending position, oil enters a small cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the slide plate oil cylinder descends to drive a slide plate mechanism connected with the slide plate oil cylinder to execute contraction action.
Further, when the first reversing valve is a three-position four-way valve, four oil ports on a normal position of the first reversing valve are normally closed;
When the first reversing valve is in a normal state, oil does not enter the first reversing valve, and the slide plate oil cylinder does not act;
when the first reversing valve is in an upward position, oil enters a large cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, the slide plate oil cylinder moves upward to drive a slide plate mechanism connected with the slide plate oil cylinder to execute an extending action, and the slide plate mechanism is matched with a push plate mechanism connected with the push plate oil cylinder to execute a compression operation;
when the first reversing valve is in the descending position, oil enters a small cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the slide plate oil cylinder descends to drive a slide plate mechanism connected with the slide plate oil cylinder to execute contraction action.
Further, the second reversing valve is a three-position six-way valve or a three-position four-way valve.
Further, when the second reversing valve is a three-position six-way valve, two oil ports are normally communicated on a normal position of the second reversing valve and are respectively connected with an oil outlet of the hydraulic pump and the hydraulic oil tank;
When the second reversing valve is in a normal state, the oil passes through the second reversing valve to return to the hydraulic oil tank under the drive of the hydraulic pump, and the push plate oil cylinder does not act;
When the second reversing valve is in an upward position, oil enters a large cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, the push plate oil cylinder drives a push plate mechanism connected with the push plate oil cylinder to execute an extending action, and the push plate mechanism is matched with a slide plate mechanism connected with the slide plate oil cylinder to execute a compression operation;
When the second reversing valve is in the descending position, oil enters a small cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the push plate oil cylinder drives a push plate mechanism connected with the push plate oil cylinder to execute contraction action.
Further, when the second reversing valve is a three-position four-way valve, four oil ports on a normal position of the second reversing valve are normally closed;
When the second reversing valve is in a normal state, oil does not enter the second reversing valve, and the push plate oil cylinder does not act;
When the second reversing valve is in an upward position, oil enters a large cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, the push plate oil cylinder moves upward to drive a push plate mechanism connected with the push plate oil cylinder to execute an extending action, and the compression operation is executed by matching with a slide plate mechanism connected with the slide plate oil cylinder;
When the second reversing valve is in the descending position, oil enters a small cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the push plate oil cylinder descends to drive a push plate mechanism connected with the push plate oil cylinder to execute contraction action.
In a second aspect, the present invention further provides a compression mechanism, including the system of any one of the first aspects, further including a slide mechanism and a push plate mechanism, the slide mechanism being connected to and driven by the slide cylinder to move, the push plate mechanism being connected to and driven by the push plate cylinder to move;
The compression action is performed when the slide plate mechanism and the push plate mechanism move in opposite directions/when the slide plate mechanism moves upward toward the push plate mechanism and the push plate mechanism remains stationary.
In a third aspect, the present invention further provides a compression control method based on the compression mechanism in the second aspect, which is executed by a controller, and includes:
the first reversing valve controls the sliding plate oil cylinder to move upwards to drive the sliding plate mechanism to move towards the push plate mechanism so as to execute compression operation;
in the compression operation process, responding to detection that the pressure of the large cavity of the slide plate oil cylinder reaches a preset pressure, controlling the valve port of the electric proportional stop valve to be opened at a preset speed, and thus controlling the oil discharging speed of the large cavity of the push plate oil cylinder;
in the compression operation process, the overflow amount is controlled by controlling the opening of the valve port of the electric proportional overflow valve, so that the compression ratio of the compression mechanism is controlled.
Compared with the prior art, the invention has the following beneficial effects:
According to the compression control system, the compression mechanism and the compression control method, the valve opening speed of the electric proportional stop valve is controlled, so that the impact force of high-pressure oil discharge of a large cavity of the push plate cylinder is effectively reduced, a pipeline and the push plate mechanism are further effectively protected, and noise is reduced; different overflow amounts are realized by controlling the opening of the valve port of the electric proportional overflow valve, so that the compression ratio of the compression mechanism is controlled, and the adaptation to different loading capacity requirements is realized.
Drawings
Fig. 1 is a schematic structural diagram of a compression control system according to an embodiment of the present invention.
In the figure: 1. a hydraulic oil tank; 2. a hydraulic pump; 3. a first reversing valve; 4. a pressure sensor; 5. a slide plate cylinder; 6. a push plate cylinder; 7. a pressure regulating valve; 8. a second reversing valve; 71. an electric proportional stop valve; 72. an electric proportional overflow valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the following examples are only for more clearly illustrating the technical aspects of the present invention, and are not to be construed as limiting the scope of the present invention.
Example 1.
As shown in fig. 1, the invention provides a compression control system, which comprises a controller, a hydraulic oil tank 1, a hydraulic pump 2, a first reversing valve 3, a pressure sensor 4, a slide plate oil cylinder 5, a push plate oil cylinder 6, a pressure regulating valve 7 and a second reversing valve 8, wherein the pressure regulating valve 7 comprises an electric proportional stop valve 71 and an electric proportional overflow valve 72.
The controller is respectively connected with the hydraulic pump 2, the first reversing valve 3, the second reversing valve 4, the electric proportional stop valve 71, the electric proportional overflow valve 72 and the pressure sensor 4.
The oil suction port of the hydraulic pump 2 is connected with the hydraulic oil tank 1, and the oil outlet is connected with the oil inlets of the first reversing valve 3 and the second reversing valve 8.
The large cavity and small cavity oil ports of the slide plate oil cylinder 5 are respectively connected with the oil ports of the first reversing valve 3, a pressure sensor 4 is arranged on the large cavity oil path of the slide plate oil cylinder 5, and the pressure sensor 4 is used for detecting the pressure of the large cavity of the slide plate oil cylinder; the slide cylinder 5 is connected with a slide mechanism of the compression mechanism and is used for driving the slide mechanism to move.
In this embodiment, the first reversing valve 3 is a three-position six-way valve, as shown in fig. 1, when the first reversing valve 3 is in a normal position (i.e., a middle position in fig. 1), oil passes through two normal oil ports on the normal position of the first reversing valve 3 to return to the hydraulic oil tank 1 under the driving of the hydraulic pump 2, and the slide plate oil cylinder 5 does not act; when the first reversing valve 3 is in an upward position (namely an upper position in fig. 1), oil enters a large cavity of the slide plate oil cylinder 5 under the drive of the hydraulic pump 2, the oil in a small cavity of the slide plate oil cylinder 5 is extruded to flow back to the hydraulic oil tank 1, the slide plate oil cylinder 5 moves upward to drive a slide plate mechanism connected with the slide plate oil cylinder to execute an extending action, and the slide plate mechanism is matched with a push plate mechanism connected with the push plate oil cylinder to execute a compression operation; when the first reversing valve 3 is in the descending position (namely, the lower position in fig. 1), oil enters the small cavity of the slide plate oil cylinder 5 under the drive of the hydraulic pump 2, the oil in the large cavity of the slide plate oil cylinder 5 is extruded to flow back to the hydraulic oil tank 1, and the slide plate oil cylinder 5 descends to drive the slide plate mechanism connected with the slide plate oil cylinder to execute the contraction action.
The oil ports of the large cavity and the small cavity of the push plate oil cylinder 6 are respectively connected with the oil ports of the second reversing valve 8; a pressure regulating valve 7 is arranged on a large cavity oil way of the push plate oil cylinder 6; the push plate cylinder 6 is connected with a push plate mechanism of the compression mechanism and is used for driving the push plate mechanism to move.
In this embodiment, the second reversing valve 8 is a three-position six-way valve, as shown in fig. 1, when the second reversing valve 8 is in a normal position (i.e., a middle position in fig. 1), oil passes through two normally-open ports on the normal position of the second reversing valve 8 to return to the hydraulic oil tank 1 under the driving of the hydraulic pump 2, and the push plate oil cylinder 6 does not act; when the second reversing valve 8 is in the ascending position, oil enters a large cavity of the push plate oil cylinder 6 under the drive of the hydraulic pump 2, the oil in a small cavity of the push plate oil cylinder 6 is extruded to flow back to the hydraulic oil tank 1, the push plate oil cylinder 6 drives a push plate mechanism connected with the push plate oil cylinder to execute the extending action, and the compression operation is executed by matching with a slide plate mechanism connected with the slide plate oil cylinder 5; when the second reversing valve 8 is in the descending position, oil enters the small cavity of the push plate oil cylinder 6 under the drive of the hydraulic pump 2, the oil in the large cavity of the push plate oil cylinder 6 is extruded to flow back to the hydraulic oil tank 1, and the push plate oil cylinder 6 drives the push plate mechanism connected with the push plate oil cylinder to execute contraction action.
The oil inlet of the pressure regulating valve 7 is connected by side the oil way of the large cavity of the push plate oil cylinder 6, the oil return port is connected with the hydraulic oil tank 1; the pressure regulating valve 7 comprises an electric proportional stop valve 71 and an electric proportional overflow valve 72, wherein an oil port A of the electric proportional stop valve 71 is an oil inlet of the pressure regulating valve 7, an oil port B is connected with an oil inlet of the electric proportional overflow valve 72, and an oil outlet of the electric proportional overflow valve 72 is an oil outlet of the pressure regulating valve 7.
Example 2.
The invention provides a compression mechanism, which comprises a compression control system provided in embodiment 1, a slide plate mechanism and a push plate mechanism.
The slide plate mechanism is connected with the slide plate oil cylinder 5 and driven by the slide plate oil cylinder 5 to move, and the push plate mechanism is connected with the push plate oil cylinder 6 and driven by the push plate oil cylinder 6 to move;
the compression action is performed when the slide mechanism and the push plate mechanism move in opposite directions/when the slide mechanism moves upward toward the push plate mechanism and the push plate mechanism remains stationary.
Example 3.
The invention provides a compression control method realized based on a compression mechanism provided by an embodiment 2, comprising the following steps:
The slide plate cylinder 5 drives a slide plate mechanism in the compression mechanism to perform compression operation, oil enters a large cavity of the slide plate cylinder 5 through the first reversing valve 3, the slide plate cylinder 5 performs compression operation, and the push plate cylinder 6 drives the push plate mechanism to stay at a certain position, so that the compressed oil is subjected to bidirectional pressure, and the purpose of compaction is achieved. When the acting force of the compressed garbage acting on the compression mechanism is increased, so that the large cavity pressure of the slide plate oil cylinder 5 reaches the set pressure of the pressure sensor 4, the pressure sensor 4 sends out a signal, the electromagnet YV1 of the electric proportional stop valve 71 and the electromagnet YV2 of the electric proportional overflow valve 72 in the pressure regulating valve 7 are simultaneously electrified, and the valve port of the electric proportional stop valve 71 is controlled to be slowly opened by controlling the current of the electric proportional stop valve 71, so that the impact force of high-pressure oil unloading of the large cavity of the push plate oil cylinder 6 is effectively reduced, and a pipeline and a push plate mechanism of the compression mechanism are further effectively protected; by controlling the control current of the electric proportional overflow valve 72, the opening degree of the valve port of the electric proportional overflow valve 72 can be realized, different overflow amounts can be realized, and further, different compression ratios of the compression mechanism can be realized, thereby realizing the requirements of different loading amounts of the compression mechanism.
Further comprises: the large cavity of the slide plate cylinder 5 is filled with oil to compress garbage, when the large cavity pressure of the slide plate cylinder 5 reaches the set value of the pressure sensor 4, the electromagnet YV1 of the electric proportional stop valve 71 is electrified, the reversing current is controlled to slowly reverse the large cavity of the push plate cylinder 6, so that high-pressure oil in the large cavity of the push plate cylinder 6 slowly passes through the electric proportional stop valve 71 to reach the electric proportional overflow valve 72, the electromagnet YV2 of the electric proportional overflow valve 72 and the electromagnet YV2 of the electric proportional stop valve 71 are electrified simultaneously to start overflow, the push plate cylinder 6 is retracted, when the large cavity pressure of the slide plate cylinder 5 is smaller than the set value of the pressure sensor 4, the electric proportional stop valve 71 is closed, the push plate cylinder 6 stops acting, and garbage compression is performed again.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (9)
1. A compression control system, comprising: the hydraulic system comprises a hydraulic oil tank, a hydraulic pump, a first reversing valve, a pressure sensor, a slide plate oil cylinder, a push plate oil cylinder, an electric proportional stop valve, an electric proportional overflow valve, a second reversing valve and a controller;
An oil suction port of the hydraulic pump is connected with the hydraulic oil tank, and an oil outlet of the hydraulic pump is connected with the first reversing valve, the second reversing valve and the hydraulic oil tank; the first reversing valve is connected with the slide plate oil cylinder, and the second reversing valve is connected with the push plate oil cylinder; the electric proportional stop valve is connected with the electric proportional overflow valve and then arranged on a connecting oil path of the second reversing valve and a large cavity of the push plate oil cylinder, and an oil outlet of the electric proportional overflow valve is connected with the hydraulic oil tank; the pressure sensor is arranged on a connecting oil path of the first reversing valve and the large cavity of the slide plate oil cylinder and is used for detecting the pressure of the large cavity of the slide plate oil cylinder; the controller is respectively connected with the first reversing valve, the second reversing valve, the electric proportional stop valve, the electric proportional overflow valve and the pressure sensor;
When the pressure detected by the pressure sensor reaches the preset pressure, a signal is sent to the controller, and the controller controls the valve port of the electric proportional stop valve to be opened at a preset speed.
2. The compression control system of claim 1, wherein the first reversing valve is a three-position six-way valve or a three-position four-way valve.
3. The compression control system according to claim 2, wherein when the first reversing valve is a three-position six-way valve, two oil ports are normally open in a normal position of the first reversing valve and are respectively connected with an oil outlet of the hydraulic pump and the hydraulic oil tank;
When the first reversing valve is in a normal state, oil passes through the first reversing valve to return to a hydraulic oil tank under the drive of the hydraulic pump, and the slide plate oil cylinder does not act;
when the first reversing valve is in an upward position, oil enters a large cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, the slide plate oil cylinder moves upward to drive a slide plate mechanism connected with the slide plate oil cylinder to execute an extending action, and the slide plate mechanism is matched with a push plate mechanism connected with the push plate oil cylinder to execute a compression operation;
when the first reversing valve is in the descending position, oil enters a small cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the slide plate oil cylinder descends to drive a slide plate mechanism connected with the slide plate oil cylinder to execute contraction action.
4. The compression control system of claim 2, wherein when the first reversing valve is a three-position four-way valve, four ports in a normal position of the first reversing valve are all normally closed;
When the first reversing valve is in a normal state, oil does not enter the first reversing valve, and the slide plate oil cylinder does not act;
when the first reversing valve is in an upward position, oil enters a large cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, the slide plate oil cylinder moves upward to drive a slide plate mechanism connected with the slide plate oil cylinder to execute an extending action, and the slide plate mechanism is matched with a push plate mechanism connected with the push plate oil cylinder to execute a compression operation;
when the first reversing valve is in the descending position, oil enters a small cavity of the slide plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the slide plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the slide plate oil cylinder descends to drive a slide plate mechanism connected with the slide plate oil cylinder to execute contraction action.
5. The compression control system of claim 1, wherein the second reversing valve is a three-position six-way valve or a three-position four-way valve.
6. The compression control system of claim 5, wherein when the second reversing valve is a three-position six-way valve, two oil ports are normally open in a normal position of the second reversing valve and are respectively connected with an oil outlet of the hydraulic pump and the hydraulic oil tank;
When the second reversing valve is in a normal state, the oil passes through the second reversing valve to return to the hydraulic oil tank under the drive of the hydraulic pump, and the push plate oil cylinder does not act;
When the second reversing valve is in an upward position, oil enters a large cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, the push plate oil cylinder moves upward to drive a push plate mechanism connected with the push plate oil cylinder to execute an extending action, and the compression operation is executed by matching with a slide plate mechanism connected with the slide plate oil cylinder;
When the second reversing valve is in the descending position, oil enters a small cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the push plate oil cylinder drives a push plate mechanism connected with the push plate oil cylinder to execute contraction action.
7. The compression control system of claim 5, wherein when the second reversing valve is a three-position four-way valve, four ports in a normal position of the second reversing valve are all normally closed;
When the second reversing valve is in a normal state, oil does not enter the second reversing valve, and the push plate oil cylinder does not act;
When the second reversing valve is in an upward position, oil enters a large cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a small cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, the push plate oil cylinder drives a push plate mechanism connected with the push plate oil cylinder to execute an extending action, and the push plate mechanism is matched with a slide plate mechanism connected with the slide plate oil cylinder to execute a compression operation;
When the second reversing valve is in the descending position, oil enters a small cavity of the push plate oil cylinder under the drive of the hydraulic pump, the oil in a large cavity of the push plate oil cylinder is extruded to flow back to the hydraulic oil tank, and the push plate oil cylinder drives a push plate mechanism connected with the push plate oil cylinder to execute contraction action.
8. A compression mechanism comprising the system of any one of claims 1 to 7, further comprising a slide mechanism and a push plate mechanism, the slide mechanism being connected to and driven by the slide cylinder to move, the push plate mechanism being connected to and driven by the push plate cylinder to move;
The compression action is performed when the slide plate mechanism and the push plate mechanism move in opposite directions/when the slide plate mechanism moves upward toward the push plate mechanism and the push plate mechanism remains stationary.
9. A compression control method based on the compression mechanism of claim 8, characterized by being executed by a controller, comprising:
the first reversing valve controls the sliding plate oil cylinder to move upwards to drive the sliding plate mechanism to move towards the push plate mechanism so as to execute compression operation;
in the compression operation process, responding to detection that the pressure of the large cavity of the slide plate oil cylinder reaches a preset pressure, controlling the valve port of the electric proportional stop valve to be opened at a preset speed, and thus controlling the oil discharging speed of the large cavity of the push plate oil cylinder;
in the compression operation process, the overflow amount is controlled by controlling the opening of the valve port of the electric proportional overflow valve, so that the compression ratio of the compression mechanism is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410943256.XA CN118564505A (en) | 2024-07-15 | 2024-07-15 | Compression control system, compression mechanism and compression control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410943256.XA CN118564505A (en) | 2024-07-15 | 2024-07-15 | Compression control system, compression mechanism and compression control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118564505A true CN118564505A (en) | 2024-08-30 |
Family
ID=92472886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410943256.XA Pending CN118564505A (en) | 2024-07-15 | 2024-07-15 | Compression control system, compression mechanism and compression control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118564505A (en) |
-
2024
- 2024-07-15 CN CN202410943256.XA patent/CN118564505A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109058187B (en) | An unloading buffer hydraulic system | |
| KR20030032042A (en) | Controller for a hydraulic press and method for the operation thereof | |
| CN107054954B (en) | Energy-saving constant-thrust compression system of compression type garbage truck loading equipment and control method | |
| WO2023041087A1 (en) | Electro-hydraulic servo drive device and chromatography apparatus | |
| CN102777446B (en) | A kind of oil-water conversion variable displacement emulsion pump station | |
| CN111846716B (en) | Control method of push shovel of kitchen garbage truck during garbage compression | |
| JPH09122999A (en) | Hydraulic circuit for driving double cylinder | |
| CN112343898A (en) | Hydraulic system of large plate shearing machine | |
| CN108150465B (en) | An intelligent adjustment system for the discharge port of an impact crusher and an impact crusher | |
| JP4465543B2 (en) | High speed press machine | |
| CN113459558B (en) | A bidirectional brake hydraulic press and its working method | |
| CN119532254B (en) | Constant-power ultrahigh-pressure pressurizing system and ultrahigh-pressure treatment equipment | |
| CN208089649U (en) | A kind of impact breaker discharge gate intelligent regulating system and impact breaker | |
| CN213744210U (en) | Vertical garbage compressor hydraulic system with liquid charging function | |
| CN2885800Y (en) | Hydraulic elevator | |
| CN2617566Y (en) | Electrohydraulic ratio controlling rubber briquetting machine | |
| CN223032944U (en) | Brake valve block hydraulic system | |
| US4070831A (en) | Hydraulic drive circuit for machine tools | |
| CN109469664B (en) | Hydraulic cylinder buffer system | |
| JP2008240849A (en) | Hydraulic cylinder control device | |
| CN204164066U (en) | Hydraulic systems for filter presses | |
| CN113883108B (en) | A continuous flow amplifier and hydraulic press | |
| CN203093089U (en) | Hydraulic control system of garbage compactor and garbage compactor | |
| CN116044827B (en) | Special hydraulic system for foam molding machine | |
| CN115042467B (en) | Twin-shaft press with adjustable compression ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |