JPH0247360Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a distribution valve device used for lubricating a plurality of rotating or sliding parts of various machines.

[Prior Art] Conventionally, as this type of technology, a device as shown in FIG. 1 or 2 has generally been used.
In FIG. 1, 1a is a progressively actuated distribution valve, and 2a is a valve assembly provided with a plurality of auto-relief valves. 3a is a large number of pipes connecting the progressive distributing valve 1a and the valve assembly 2a; 4a is an oil supply pump that pressurizes lubricant into the progressive distributing valve 1 to operate it; and 5a is a It is an oil sump, and 6a indicates a bypass connecting a plurality of auto-relief valves (not shown in FIG. 1) of the valve assembly 2a and the oil sump 5a. Also 7a-1
2a is a lubricant discharge passage, and 13a is an indicator rod for confirming the operation of the auto-relief valve. To describe the operation of this device, first, lubricant is pressurized from the oil supply pump 4a to the progressive distribution valve 1a, which then operates, and the lubricant sequentially passes through each pipe 3a to the valve. Each discharge passage 7a of the assembly 2a~
Starting from 12a, the liquid is sequentially supplied to rotating parts or sliding parts of a machine (not shown) through pipe lines (not shown) connected to each of the discharge passages 7a to 12a. If a passage (not shown) connected to the discharge passages 7a to 12a becomes clogged for some reason,
The auto-relief valve is activated so that the lubricant in the passage can be returned to the oil reservoir 5a, leaving only a portion.

Next, the progressive distributing valve 1a and the valve assembly 2
Let us explain about a. First, the progressive operation type distribution valve 1a
As an example, it is formed as shown in FIG.
6a, 17a, 18a are the first cylinders, respectively;
The second cylinder and third cylinder are shown. The same cylinder usually comes in various types such as 6, 9, 12, and 16 cylinders. Further, 19a, 20a, and 21a are a first piston, a second piston, and a third piston, respectively. And each of these pistons 19a, 20a, 21a
etc. each have a notch 22a. Also 23a, 24a, 25a, 26a, 2
7a and 28a each indicate a lubricant delivery passage. As shown in the figure, the delivery passages 23a to 28a are connected to the first to third cylinders 16a to 18a, respectively, through complicated bends.

Next, regarding the valve assembly 2a, the cross section of the valve assembly 2a is formed as shown in FIG. 4. In the same figure, 29a is the main body, 30a
1 is an auto-relief valve, and 13a is an indicator rod for instructing the operation of the auto-relief valve 30a as described above.
a, and is housed in a movable manner. 6a is a bypass leading to the oil reservoir 5a, and the passage 3
1a. Reference numeral 33a designates a lid body that pivotally supports the indicator rod 13a so as to allow the indicator rod 13a to move in and out, 34a designates a spring, and 35a designates a valve body, of which a steel ball is used as an example. 36a indicates a spring-adjustable lid. Also, in the same figure and FIG. 3, 37a to 42a
43a to 48a are the auto relief valve 30a and the receiving passages 37a to 48a, respectively, for the lubricant.
42a are shown to communicate with each other.

Next, to describe the action of the advancing type distribution valve 1a, when lubricant is pressurized from the oil supply pump 4a into the injection port 15a of the base body 14a in FIG. 3, the lubricant advances as shown by the chain line 49a. , the second piston 20a is pushed to the right in the figure to push out the lubricant in the chamber 50a at the right end of the second cylinder 17a. Thereby, the lubricant advances as shown by the chain line 51a, reaches the receiving passage 38a of the valve assembly 2a from the delivery passage 24a, and
And it is discharged from the discharge passage 8a.

Next, the progressive distribution valve 1a shifts from the state shown in FIG. 3 to the state shown in FIG. 5 due to the pressure of the lubricant pumped from the oil supply pump 4a. In the same figure, the lubricant advances as shown by a chain line 52a, pushes the third piston 21a to the right in the figure, pushes out the lubricant in the right end chamber 53a of the third cylinder 18a, and moves as shown by a chain line 54a. The liquid is advanced, sent from the delivery passage 25a to the reception passage 43a of the valve assembly 2a, and discharged from the discharge passage 9a. Next, the operating valve 1a is in the state shown in FIG. In the figure, the lubricant advances as shown by the chain line 55a, pushes the first piston 19a to the right in the figure, and pushes the first piston 19a to the right in the figure, causing the lubricant to move into the chamber 56a at the right end of the first cylinder 16a.
The lubricant inside is pushed out, and the lubricant is advanced as shown by the chain line 57a, and the lubricant is pushed out from the delivery passage 23a to the valve assembly 2.
a receiving passage 37a, and the discharge passage 7
Discharge from a. Next, the progressive distribution valve 1 shifts to the state shown in FIG. 7.

In the figure, the lubricant advances as shown by the chain line 59a, pushes the second piston 20a to the left, and
Pushing out the lubricant in the chamber 60a at the left end of the cylinder 17a, causing the lubricant to advance as shown by the chain line 61a, discharging it from the delivery passage 27a, and reaching the receiving passage 41a of the valve assembly 2a through the piping 3a,
And it is discharged from the discharge port 11a.

Although the explanation of the operation of the advancing distribution valve 1a will be omitted below, the advancing operation is repeatedly performed continuously by the lubricant pumped from the oil supply pump 4a.

Next, describing the operation of the valve assembly 2a shown in FIG. 4, lubricant is press-fitted from the receiving passage 37a, enters the discharge passage 7a from the receiving passage 37a,
It is delivered from the mouth of the discharge passage 7a. If a passage (not shown) connected to the discharge passage 7a becomes clogged for some reason, the discharge passage 7a
The pressure in the communicating passage 43a connected to the passage 7a increases, and the valve body 35a pushes the spring 34a in the direction of arrow A, and also pushes the piston 32a in the cylindrical passage 31a in the direction of arrow B, causing the indicator rod to 13a to indicate the operation of the auto relief valve 30a, and the lubricant is transferred from the bypass 6a to the oil sump 5a.
It is now being sent to and collected. Next, the conventional apparatus shown in FIG. 2 will be explained.

In the figure, 7b, 8b, and 9b are discharge passages, which are provided on the side surface of the device.

Also, 30b, 30c, 30d, 30e, 30
f and 30g each indicate an auto-relief valve.
The details of the device are shown in FIG. 8, in which 16b is a cylinder, 19b is a piston, and 22b is a notch. Also 6
3a and 64a are communication ports, respectively, which are formed in communication with other cylinders formed in the paper back direction, delivery passages, etc., and together with other cylinders not shown in the figure, form a progressive operation type distribution valve 1b. There is. Again 7
b and 7c are discharge passages, and a pair of discharge passages with the discharge passages 8b and 9b are formed in the paper spine direction. Regarding the operation of this device, the progressive operation type distribution valve 1b operates, and each discharge passage 7b, 8
Lubricant is sequentially discharged from b, 9b, 7c and other discharge passages not shown. If the passage (not shown) connected to this discharge passage becomes clogged for some reason, the auto-relief valve connected to it is activated and the lubricant is released to the outside of the auto-relief valve. There is.

[Problems to be Solved by the Invention] The details of the conventional device of this kind shown in FIGS. 1 and 2 have been described above, but the device shown in FIG. 1 has the following drawbacks. Since the progressive distributing valve 1a and the valve assembly 2a are connected by the pipe 3a, a relatively strong force may be applied to either the progressive distributing valve 1a or the valve assembly 2a for some reason. There may be cases where In such a case, the connection between one of the devices and the pipe 3a will be damaged, causing lubricant leakage.

An example of the above case is when a heavy object is being transported by a crane, hoist, forklift, etc. in a factory, etc., and the heavy object accidentally comes into contact with one of the above-mentioned 1 and 2. It is.

Next, in the devices shown in FIGS. 2 and 8, an auto-relief valve is assembled to the discharge port of the progressive distributing valve 1b, so that the above-mentioned problem does not occur.

However, with this device, if the passage leading to the discharge passage becomes clogged as described above, the lubricant cannot be returned to the oil reservoir and is released outside the auto-relief valve, resulting in contamination of the outside surface of the device and Cleaning must be done, which is troublesome. This invention was devised to solve these problems, and its purpose is to prevent both progressive distributing valves or valve assemblies from being damaged even if force is applied to either the progressive distributing valve or the valve assembly for any reason. If the piping connection is damaged and lubricant does not leak, and if the passage connected to the discharge passage becomes clogged for some reason, the lubricant in that passage can be returned to the oil reservoir and collected. It is an object of the present invention to provide a distribution valve device that can perform the following steps.

[Means for Solving the Problems] This invention which achieves the above object is described as follows: a progressive distribution valve 1 which has a plurality of lubricant delivery passages 23 and 24 and is operated by an oil supply pump 4; a valve assembly 2 having the same number of lubricant receiving passages 37, 38 as the delivery passages 23, 24;
Discharge passages 7 and 8 formed in the valve assembly 2 to communicate with the reception passages 37 and 38, respectively; communication passages 43 and 44 with the reception passages 37 and 38, respectively;
Auto relief valve 3 provided in communication with
0, 30; a hot water reservoir 5 connected to each of the auto relief valves 30, 30 via a bypass 6;
Each of the sending passages 23 and 24 and each of the receiving passages 3
7 and 38, respectively, and the valve assembly 2 is integrally provided with the progressively actuated distribution valve 1.

[Function] The lubricant is pressurized and sent from the oil supply pump 4 to the progressive distributing valve 1, the progressive distributing valve 1 is actuated, and the plurality of delivery passages 23, 2 of the distributing valve 1 are operated.
The lubricant is sequentially delivered from each of the valves 4 and 4, and is sequentially received into the plurality of receiving passages 37 and 38 of the valve assembly 2 formed integrally with the progressive distribution valve 1, and the valve assembly The liquid is sequentially discharged from the plurality of discharge passages 7 and 8 of No. 2.

If a relatively strong force is applied to either the progressive distributing valve 1 or the valve assembly 2 of this distribution valve device for some reason, the progressive distributing valve 1 and the valve assembly 2 Because they are integrally formed, there is no risk of lubricant leakage due to damage to the piping connection of one of the devices 1 and 2, which occurs in the conventional example shown in FIGS. 1 and 3. You can eliminate the fear of this happening.

Furthermore, if the passage connected to the discharge passages 7 and 8 becomes clogged for some reason, the pressure in the passage increases, and the auto-relief valve 30 provided in communication with the passage operates. The lubricant in the passage passes through the bypass 6 communicating with the auto-relief valve 30, leaving a part behind, and reaches the oil reservoir, where it is recovered.

[Example] In FIG. 9, reference numeral 1 denotes a progressively actuated distribution valve, and this progressively actuated distribution valve 1 is the same device as the conventional one shown in FIGS. 1 and 3 above.
Some parts are omitted because the illustration is complicated. 2
Numerals 3 and 24 are lubricant delivery passages connected to the cylinders of the progressive operating valve 1, some of which are omitted. In the explanation of the drawings of this invention, the drawing symbols are in a form different from the drawing symbols a and b in the drawings of the apparatus of the conventional example, but this is due to the presence or absence of the drawing symbols a and b. This is to distinguish it from the device of the invention, and those with the same numerals as the drawing symbols a and b are given the same name and refer to members and devices that perform the same function.

Next, reference numeral 4 denotes an oil supply pump which pressurizes and delivers lubricant to the progressively operating type distributing valve 1 to cause the progressively operating type distributing valve 1 to advance.

2 is a valve assembly, which includes a plurality of auto-relief valves 30 and the same number as the delivery passages 23 and 24;
30, and a plurality of lubricant delivery passages 7, 8, the same number of which are the delivery passages 23, 24, are formed. As shown in the figure, the valve assembly 2 is formed integrally with the progressively acting distribution valve 1, and the plurality of delivery passages 23, 24 of the progressively acting distributing valve 1 are connected to the respective valves. aggregate 2
are directly connected to the receiving passages 37 and 38, respectively. Note that the meaning of direct connection in this case refers to direct connection without going through the piping 3a as shown in FIG.

Next, in FIG. 9, 31 is a cylindrical passage connected to the auto-relief valves 30, 30, and an indicator rod 13 having a piston 32 is provided in the passage 31.

Note that the piston 32 and the indicator rod 13 are fixed with a pin or the like (not shown). This finger stick 13 is used to instruct the operation of the auto relief valve 30. Reference numeral 33 is a lid body that slidably supports the indicator rod 13, and the passage 31 is connected to the oil reservoir 5 via a bypass 6 as shown. Next, in the figure, 34 is a spring, and 35 is a valve body, of which a steel ball is used as an example.

36 is a lid with which the spring 34 can be adjusted. These auto-relief valves 30 and 30 are connected to the receiving passage 3 through communication passages 43 and 44, respectively.
7, 38. Further, the piston 32 of the indicator rod 13 is formed to have a cross section as shown in FIG. When the piston 32 operates, lubricant returns from the passage 31 to the oil sump 5 through the bypass 6. The indicator rod 13 protrudes outward from the lid 33, thereby indicating that the corresponding discharge passage is clogged. When the indicator rod 13 is pushed back inward from the outside, the lubricant between the piston 32 and the auto-relief valve 30 is forced out through the groove 60 and returns to the oil sump 5 through the bypass 6.

In the device of this invention, the progressive distributing valve 1 is shown to have two cylinders, but this is just an example, and normally, as described in the conventional example, six, nine, or 12, 16, etc. are formed.

Note that the operation of this embodiment is almost the same as the explanation of the operation of this invention described above, so a description thereof will be omitted.

[Effects of the invention] This invention is constructed as described above, and includes a progressive distribution valve 1 having a plurality of lubricant delivery passages 23 and 24 and operated by the oil supply pump 4, and the delivery passages 23 and 24. The valve assembly 2 has the same number of lubricant receiving passages 37, 38, and the valve assembly 2 is connected to the receiving passages 37, 38, respectively.
discharge passages 7 and 8 formed in the receiving passage 3;
auto relief valves 30, 30 provided in communication with 7, 38 through communication passages 43, 44, respectively;
The oil reservoir 5 connected to each of the auto relief valves 30, 30 via a bypass 6, each of the sending passages 23, 24, and each of the receiving passages 37, 38 are directly communicated with each other, and the advancing operation is performed. Since it is formed by a type distribution valve 1 and the valve assembly 2 provided integrally with the valve assembly 2, there is no possibility that either the progressive operation type distribution valve 1 or the valve assembly 2 of this distribution valve device may be compared for some reason. When a strong force is applied to the valve assembly 2, the progressive distributing valve 1 and the valve assembly 2 are integrally formed, so that when a strong force is applied to the valve, the distributing valve 1 and the valve assembly 2 are integrally formed. Both 1
The piping connection of one of the devices a and 2a is damaged,
It is possible to eliminate the risk of lubricant leakage.

In addition, if the passage connected to the discharge passages 7 and 8 becomes clogged for some reason, the auto relief valve 3
0 is activated, and the lubricant in the passage can be collected into the oil sump 5 through the bypass 6 communicating with the auto-relief valve 30.

Further, the troublesome effort of assembling a large number of pipes between the progressive distribution valve 1 and the valve assembly 2 can be greatly reduced.

Moreover, the piping space due to the large number of piping can be reduced.

Furthermore, piping materials can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an outline of a conventional distribution valve device, Fig. 2 is a perspective view of a similar device showing another conventional example, and Fig. 3 is a cross section explaining the operation of the conventional device shown in Fig. 1. 4 is a sectional view of a portion of FIG. 1 that is different from FIG. 3, and FIG. 5 is a sectional view of a portion of the device shown in FIG. 1, showing an operation subsequent to the operation shown in FIG. 6 is a sectional view of a portion of the apparatus shown in FIG. 1, showing an operation subsequent to the operation shown in FIG. 5; FIG. 7 is a sectional view of a portion of the apparatus shown in FIG. FIG. 8 is a sectional view of the device shown in FIG. 2, FIG. 9 is a partial sectional view of the distribution valve device with some parts omitted, showing an embodiment of this invention, and FIG.
The figure is a sectional view showing the details of the portion shown in FIG. 9, and FIG. 11 is a sectional view taken along the line XI--XI in FIG. 1... Progressive operation type distribution valve, 2... Valve assembly, 4
...Oil supply pump, 5...Oil reservoir, 6...Bypass, 7...Discharge passage, 8...Discharge passage, 23...
Sending passage, 24... Sending passage, 30... Auto relief valve, 37... Receiving passage, 38... Receiving passage, 43... Communication passage, 44... Communication passage.

Claims (1)

[Scope of utility model registration request] A progressive distribution valve 1 having a plurality of lubricant delivery passages 23 and 24 and operated by a refueling pump 4; a valve set having the same number of lubricant reception passages 37 and 38 as the delivery passages 23 and 24; body 2; discharge passages 7, 8 formed in the valve assembly 2, communicating with the reception passages 37, 38, respectively; Auto relief valve 30, 3
0; an oil reservoir 5 connected to each of the auto-relief valves 30, 30 via a bypass 6; each of the delivery passages 23, 24 and each of the reception passages 37, 38;
the valve assembly 2 that is integrally provided with the progressive distribution valve 1 and in direct communication with each other;
A distribution valve device comprising: