CN111237290A - Displacement device of actuator - Google Patents
Displacement device of actuator Download PDFInfo
- Publication number
- CN111237290A CN111237290A CN202010029245.2A CN202010029245A CN111237290A CN 111237290 A CN111237290 A CN 111237290A CN 202010029245 A CN202010029245 A CN 202010029245A CN 111237290 A CN111237290 A CN 111237290A
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- CN
- China
- Prior art keywords
- actuator
- guide rod
- oil cylinder
- displacement sensor
- fixedly connected
- 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
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 54
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses an actuator displacement device, which relates to the technical field of actuator equipment and comprises an actuator oil cylinder, wherein a main shaft sleeve is sleeved on a main shaft of the actuator oil cylinder, a fixed plate is sleeved outside the main shaft sleeve through a bearing, a vertically arranged guide rod is fixedly connected to the fixed plate, the upper end of the guide rod penetrates through the fixed sleeve, one side of the fixed sleeve is fixedly connected with the actuator oil cylinder, the other side of the fixed sleeve is fixedly connected with a displacement sensor, and the bottom of the displacement sensor is connected with the fixed plate; the displacement sensor is connected with a controller. The actuator displacement device provided by the invention has the advantage that the accuracy of the repeated displacement measurement structure of the test piece is high.
Description
Technical Field
The invention relates to the technical field of actuator equipment, in particular to an actuator displacement device.
Background
The actuator is also called a vibration exciter, is used for a dynamic test and is a force output device for the dynamic test. The actuator is used for applying control force to the control object according to the determined control rule. The traditional actuator only has a force application control function, and the displacement of a test piece needs auxiliary equipment to be measured. However, the displacement of the test piece is necessary for the dynamic test, and since the auxiliary device is separated from the actuator, the accuracy of repeated measurement of the test result cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an actuator displacement device, which solves the problems in the prior art and ensures that the displacement repeated measurement structure of a test piece has high accuracy.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an actuator displacement device which comprises an actuator oil cylinder, wherein a main shaft sleeve is sleeved on a main shaft of the actuator oil cylinder, a fixing plate is sleeved outside the main shaft sleeve through a bearing, a vertically arranged guide rod is fixedly connected to the fixing plate, the upper end of the guide rod penetrates through the fixing sleeve, one side of the fixing sleeve is fixedly connected with the actuator oil cylinder, the other side of the fixing sleeve is fixedly connected with a displacement sensor, and the bottom of the displacement sensor is connected with the fixing plate; the displacement sensor is connected with a controller.
Optionally, the guide rod is fixedly connected with the fixing plate through a fastening screw; the guide rod is located between the displacement sensor and the actuator oil cylinder, and the guide rod, the displacement sensor and the actuator oil cylinder are vertically arranged in parallel.
Optionally, the fixing sleeve includes a first connecting block and a second connecting block which are integrally formed; one side of the first connecting block is fixedly connected with the shell of the actuator oil cylinder, and the lower part of the first connecting block is connected with the second connecting block through a vertical connecting part; the outer side of the second connecting block is fixedly connected with the displacement sensor, a limiting groove is formed in the bottom of the second connecting block, a through hole is formed in the bottom of the limiting groove, the upper end of the guide rod is located in the limiting groove, and the top end of the guide rod penetrates through the through hole.
Optionally, the cross section of the guide rod is of a circular structure, a rounded triangular structure or a rounded rectangular structure.
Optionally, the bearing is a tapered roller bearing, a double-row deep groove ball bearing, a deep groove ball bearing, an angular contact ball bearing, a cylindrical roller bearing or a needle bearing.
Compared with the prior art, the invention has the following technical effects:
the actuator displacement device is simple in structure and convenient to use, so that the actuator has a displacement testing function, the actuator is more convenient to operate while the actuator function is increased, and the measuring result is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of an actuator displacement device according to the present invention;
wherein, 1 is a main shaft sleeve, 2 is a bearing, 3 is a fixed plate, 4 is a guide rod, 5 is a displacement sensor, 6 is a fixed sleeve, 7 is a controller, and 8 is an actuator oil cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an actuator displacement device, which solves the problems in the prior art and ensures that the displacement repeated measurement structure of a test piece has high accuracy.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an actuator displacement device, as shown in figure 1, the displacement device is arranged on an actuator oil cylinder 8 and a main shaft sleeve 1, the main shaft sleeve 1 is fixedly arranged on a main shaft of the actuator oil cylinder 8 and can synchronously vertically move along with the vertical extension of the main shaft, the displacement device comprises a bearing 2, a fixed plate 3, a guide rod 4, a displacement sensor 5, a fixed sleeve 6 and a controller 7, and the bearing 2 is arranged on the outer contour of the top end of the main shaft sleeve 1; the fixed plate 3 is arranged on the bearing 2; the guide rod 4 is arranged in the fixed sleeve 6, and the lower end of the guide rod 4 is fixed on the fixed plate 3; the fixed sleeve 6 is fixed on the shell of the oil cylinder 8; the displacement sensor 5 is fixed on the outer side of the fixed sleeve 6, and the displacement sensor 5 is externally connected with a controller 7.
Specifically, the guide rod 4 is fixedly connected with the fixed plate 3 through a fastening screw; the guide rod 4 is positioned between the displacement sensor 5 and the actuator oil cylinder 8, and the guide rod 4, the displacement sensor 5 and the actuator oil cylinder 8 are vertically arranged in parallel. The fixed sleeve 6 comprises a first connecting block and a second connecting block which are integrally formed; one side of the first connecting block is fixedly connected with a shell of the actuator oil cylinder, and the lower part of the first connecting block is connected with the second connecting block through a vertical connecting part; the outside of the second connecting block is fixedly connected with the displacement sensor 5, a limiting groove is formed in the bottom of the second connecting block, a through hole is formed in the bottom of the limiting groove, the upper end of the guide rod 4 is located in the limiting groove, and the top end of the guide rod 4 penetrates through the through hole. The cross section of the guide rod 4 is circular, and the bearing 2 is a double-row deep groove ball bearing.
The invention has simple structure and convenient use, when in use, the main shaft of the actuator oil cylinder 8 is closely contacted and connected with a test piece, the position of the main shaft sleeve 1 is taken as an initial position, then force is applied to the test piece, the test piece is vertically displaced under the action of the main shaft force, the elongation of the main shaft is changed, the main shaft sleeve 1 vertically moves along with the main shaft by the same length, the fixing plate 3 connected with the main shaft sleeve 1 through the bearing 2 also vertically moves along with the main shaft, because the fixing sleeve 6 is fixedly arranged on the actuator oil cylinder 8, the fixing sleeve 6 is fixed, one end of the displacement sensor 5 is connected with the fixing sleeve 6, the other end of the displacement sensor is connected with the fixing plate 3, the displacement of the vertical movement of the fixing plate 3 can be measured in real time through the displacement sensor 5, the vertical displacement of the fixing plate 3 is the same as that of the main shaft sleeve 1, therefore, the purpose of measuring the displacement of the test piece in real time is achieved, the measurement result is accurate and reliable, and the controller 7 is electrically connected with the displacement sensor 5 and can process, transmit and display the measurement result in real time. The upper end of the guide rod 4 vertically moves in the limiting groove of the fixing sleeve 6, and the lower end of the guide rod is fixedly connected with the fixing plate 3, so that the guide rod 4 can play a certain limiting role for the fixing plate 3, the transverse movement between the fixing plate 3 and the displacement sensor 5 is avoided, and the accuracy of a measuring result is further improved.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. An actuator displacement device, comprising: the device comprises an actuator oil cylinder, wherein a main shaft sleeve is sleeved on a main shaft of the actuator oil cylinder, a fixing plate is sleeved on the outer side of the main shaft sleeve through a bearing, a vertically arranged guide rod is fixedly connected to the fixing plate, the upper end of the guide rod penetrates through the fixing sleeve, one side of the fixing sleeve is fixedly connected with the actuator oil cylinder, the other side of the fixing sleeve is fixedly connected with a displacement sensor, and the bottom of the displacement sensor is connected with the fixing plate; the displacement sensor is connected with a controller.
2. The actuator displacement device of claim 1, wherein: the guide rod is fixedly connected with the fixing plate through a fastening screw; the guide rod is located between the displacement sensor and the actuator oil cylinder, and the guide rod, the displacement sensor and the actuator oil cylinder are vertically arranged in parallel.
3. The actuator displacement device of claim 2, wherein: the fixing sleeve comprises a first connecting block and a second connecting block which are integrally formed; one side of the first connecting block is fixedly connected with the shell of the actuator oil cylinder, and the lower part of the first connecting block is connected with the second connecting block through a vertical connecting part; the outer side of the second connecting block is fixedly connected with the displacement sensor, a limiting groove is formed in the bottom of the second connecting block, a through hole is formed in the bottom of the limiting groove, the upper end of the guide rod is located in the limiting groove, and the top end of the guide rod penetrates through the through hole.
4. The actuator displacement device of claim 1, wherein: the cross section of the guide rod is of a circular structure, a rounded triangular structure or a rounded rectangular structure.
5. The actuator displacement device of claim 1, wherein: the bearing is a tapered roller bearing, a double-row deep groove ball bearing, a deep groove ball bearing, an angular contact ball bearing, a cylindrical roller bearing or a needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029245.2A CN111237290A (en) | 2020-01-10 | 2020-01-10 | Displacement device of actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029245.2A CN111237290A (en) | 2020-01-10 | 2020-01-10 | Displacement device of actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111237290A true CN111237290A (en) | 2020-06-05 |
Family
ID=70864272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010029245.2A Pending CN111237290A (en) | 2020-01-10 | 2020-01-10 | Displacement device of actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111237290A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742201U (en) * | 1980-08-22 | 1982-03-08 | ||
| US5890585A (en) * | 1996-03-18 | 1999-04-06 | Tsubakimoto Chain Co. | Limit switch mounting structure for a linear actuator |
| CN2773372Y (en) * | 2005-02-24 | 2006-04-19 | 陈锡彩 | Pneumatic cylinder with distance measuring device |
| CN102678676A (en) * | 2012-06-04 | 2012-09-19 | 格力乐液压系统(常州)有限公司 | Hydrocylinder |
| JP2012219930A (en) * | 2011-04-11 | 2012-11-12 | Tsubaki Emerson Co | Mounting structure of position sensing mechanism for linear working machine |
| CN104088848A (en) * | 2014-07-03 | 2014-10-08 | 福建海源自动化机械股份有限公司 | Anti-rotation servo oil cylinder of external displacement sensor |
| CN104295558A (en) * | 2014-10-13 | 2015-01-21 | 山东大学 | Highly integrated hydraulic servo oil cylinder having buffering and overload protection functions |
| CN208252503U (en) * | 2018-04-12 | 2018-12-18 | 三一汽车制造有限公司 | Displacement sensor and hydraulic cylinder |
| CN208397045U (en) * | 2018-05-25 | 2019-01-18 | 王春鹏 | A kind of servo-actuated pull rod device of external |
| CN110242643A (en) * | 2019-05-23 | 2019-09-17 | 天地科技股份有限公司 | A kind of hydraulic support advancing jack stroke automatic measurement and control method |
-
2020
- 2020-01-10 CN CN202010029245.2A patent/CN111237290A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742201U (en) * | 1980-08-22 | 1982-03-08 | ||
| US5890585A (en) * | 1996-03-18 | 1999-04-06 | Tsubakimoto Chain Co. | Limit switch mounting structure for a linear actuator |
| CN2773372Y (en) * | 2005-02-24 | 2006-04-19 | 陈锡彩 | Pneumatic cylinder with distance measuring device |
| JP2012219930A (en) * | 2011-04-11 | 2012-11-12 | Tsubaki Emerson Co | Mounting structure of position sensing mechanism for linear working machine |
| CN102678676A (en) * | 2012-06-04 | 2012-09-19 | 格力乐液压系统(常州)有限公司 | Hydrocylinder |
| CN104088848A (en) * | 2014-07-03 | 2014-10-08 | 福建海源自动化机械股份有限公司 | Anti-rotation servo oil cylinder of external displacement sensor |
| CN104295558A (en) * | 2014-10-13 | 2015-01-21 | 山东大学 | Highly integrated hydraulic servo oil cylinder having buffering and overload protection functions |
| CN208252503U (en) * | 2018-04-12 | 2018-12-18 | 三一汽车制造有限公司 | Displacement sensor and hydraulic cylinder |
| CN208397045U (en) * | 2018-05-25 | 2019-01-18 | 王春鹏 | A kind of servo-actuated pull rod device of external |
| CN110242643A (en) * | 2019-05-23 | 2019-09-17 | 天地科技股份有限公司 | A kind of hydraulic support advancing jack stroke automatic measurement and control method |
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Application publication date: 20200605 |
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