CN209511246U - A kind of piston sliding bearing structure - Google Patents
A kind of piston sliding bearing structure Download PDFInfo
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- CN209511246U CN209511246U CN201920015966.0U CN201920015966U CN209511246U CN 209511246 U CN209511246 U CN 209511246U CN 201920015966 U CN201920015966 U CN 201920015966U CN 209511246 U CN209511246 U CN 209511246U
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- piston
- sliding bearing
- cylinder
- slot
- cylinder body
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Abstract
The utility model discloses a kind of piston sliding bearing structure, including cylinder body, upper cylinder cover, lower cylinder cap, mounting rack, the upper cylinder cover and lower cylinder cap are connected to the upper and lower ends of cylinder body by bolt.The structure is by setting sliding bearing as guiding, piston is at the uniform velocity moved up and down, reduce the contact surface of piston and inboard wall of cylinder block, reduce frictional dissipation, extend the service life of piston, the very high working performance of pneumatic operated valve, and slot and ball are clogged by setting lubricating grease, friction is further reduced on the premise of ensuring tightness, avoids the case where piston is overturn.
Description
Technical field
The utility model relates to pneumatic operated valve field, in particular to a kind of piston sliding bearing structures of pneumatic operated valve.
Background technique
Pneumatic operated valve is a kind of valve by compressed air-driven.Its core component is pneumatic actuator, traditional gas
Dynamic executing agency is made of cylinder, piston and valve rod assembly etc..But during the work time, since piston will be moved back and forth
Valve rod assembly movement is driven, and in order to guarantee leakproofness, the sealing ring of piston two sides or two sides can be contacted with the inner wall of cylinder body, be made
Piston can gradually frictional dissipation, the service life of piston is reduced, when the excircle dimension tolerance and geometric tolerance of piston are in qualification
Lower limit once when, piston cylinder it is intracorporal movement be easy to appear rotation, overturning the case where, influence the workability of pneumatic actuator
Can, influence the quality of pneumatic operated valve product.
Utility model content
The purpose of this utility model is to provide for a kind of piston sliding bearing structure, which passes through setting sliding bearing
As guiding, piston is at the uniform velocity moved up and down, reduce the contact surface of piston and inboard wall of cylinder block, reduces friction damage
Consumption, extends the service life of piston, the very high working performance of pneumatic operated valve, and clogs slot and circle by setting lubricating grease
Ball further reduces friction on the premise of ensuring tightness, avoids the case where piston is overturn.
In order to achieve the above object, the utility model provides following technical solution: a kind of piston sliding bearing structure, packet
Include cylinder body, upper cylinder cover, lower cylinder cap, mounting rack, the upper cylinder cover and lower cylinder cap are connected to up and down the two of cylinder body by bolt
End, the mounting rack are bolted to the lower end of lower cylinder cap, be fixed with guide sleeve between the mounting rack and lower cylinder cap, institute
The first stomata that upper cylinder cover is equipped with connection cylinder body upper end is stated, the lower cylinder cap is equipped with the second stomata of connection cylinder body lower end,
The piston being slidably connected is equipped in the cylinder body, piston is fixed in one end and the other end runs through the valve rod of guide sleeve, is sheathed on valve
The lower end of spring bar outside and be fixed between piston and lower cylinder cap, the valve rod is equipped with pointer, the side of the mounting rack
The side of scale plate equipped with corresponding pointer, the piston is equipped with sliding bearing slot, and the side of the piston corresponds to sliding bearing
The position of slot upper and lower ends is equipped with seal groove, is arranged with sliding bearing, the seal groove inner sleeve in the sliding bearing slot
Equipped with sealing ring.
It is further preferred that the piston uses rubber material.
It is further preferred that the lubricating grease that the side of the piston is equipped with connection sliding bearing slot clogs slot.
It is further preferred that the sliding bearing is equipped with several ball limit holes being circumferentially spacedly distributed, the circle
Ball is equipped in ball limit hole.
It is further preferred that one end connection lubricating grease of the ball limit hole clogs slot, the other end is connected to cylinder interior.
The utility model has the beneficial effects that the structure by setting sliding bearing as guiding, allow piston at the uniform velocity
It moves up and down, reduces the contact surface of piston and inboard wall of cylinder block, reduce frictional dissipation, extend the service life of piston, very
The high working performance of pneumatic operated valve, and slot and ball are clogged by setting lubricating grease, on the premise of ensuring tightness into one
Step reduces friction, avoids the case where piston is overturn.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the structural schematic diagram of the piston.
Attached drawing 3 is the connection schematic diagram one of the sliding bearing and piston.
Attached drawing 4 is the connection schematic diagram two of the sliding bearing and piston.
Marginal data: 1, cylinder body；2, upper cylinder cover；3, lower cylinder cap；4, mounting rack；5, guide sleeve；6, piston；7, valve rod；8,
Spring；11, the first stomata；12, the second stomata；41, scale plate；61, sliding bearing slot；62, seal groove；63, sliding bearing；
64, sealing ring；65, lubricating grease clogs slot；66, ball limit hole；67, ball；71, pointer.
Specific embodiment
We are described further a kind of piston sliding bearing structure described in the utility model in conjunction with attached drawing below.
As shown in Figure 1 to Figure 4 shown in, a kind of piston sliding bearing structure of the present embodiment, including cylinder body 1, upper cylinder cover 2, under
Cylinder cap 3, mounting rack 4, the upper cylinder cover 2 and lower cylinder cap 3 are connected to the upper and lower ends of cylinder body 1, the installation by bolt
Frame 4 is bolted to the lower end of lower cylinder cap 3, guide sleeve 5, the upper cylinder half are fixed between the mounting rack 4 and lower cylinder cap 3
Lid 2 is equipped with the first stomata 11 of connection 1 upper end of cylinder body, and the lower cylinder cap 3 is equipped with the second stomata of connection 1 lower end of cylinder body
12, be equipped with the piston 6 being slidably connected in the cylinder body 1, piston 6 is fixed in one end and the other end through guide sleeve 5 valve rod 7,
The spring 8 for being sheathed on 7 outside of valve rod and being fixed between piston 6 and lower cylinder cap 3, the lower end of the valve rod 7 are equipped with pointer 71, institute
The side for stating mounting rack 4 is equipped with the scale plate 41 of corresponding pointer 71, and the side of the piston 6 is equipped with sliding bearing slot 61, described
The position that the side of piston 6 corresponds to 61 upper and lower ends of sliding bearing slot is equipped with seal groove 62,61 inner sleeve of sliding bearing slot
Equipped with sliding bearing 63, sealing ring 64 is arranged in the seal groove 62.The piston 6 uses rubber material.The piston 6
Side be equipped with connection sliding bearing slot 61 lubricating grease clog slot 65.The sliding bearing 63 is equipped with several circumferential directions at equal intervals
The ball limit hole 66 of distribution, the ball limit hole 66 is interior to be equipped with ball 67.One end of the ball limit hole 66 is connected to profit
Consistent lubricant clogs slot 65, and the other end is connected to inside cylinder body 1.
The service condition of the piston sliding bearing structure is as follows: as the work of existing pneumatic operated valve, passing through the first gas
The compressed air that hole 11 and the second stomata 12 are passed through adjusts the pressure of 1 inner piston of cylinder body, 6 upper and lower ends, reaches the mesh for adjusting flow
's.
By being arranged sliding bearing 63 in the sliding bearing slot 61 in 6 outside of piston, transported up and down in cylinder body 1 in piston 6
When dynamic, the side of piston 6 and the inner wall contact area of cylinder body 1 reduce, and reduce frictional dissipation, by being arranged in seal groove 62
Sealing ring 64 ensure that leakproofness, and the working performance of piston is avoided to be affected；Similar circle is set on sliding bearing 63 simultaneously
The ball limit hole 66 and ball 67 of pearl paperwork principle, then when installing and safeguarding, can be clogged in slot 65 to lubricating grease
It is packed into lubricating grease, during piston 6 moves up and down, sliding bearing 63 also follows up and down motion, and ball 67 will do it centainly
The lubricating grease in ball limit hole 66 is taken in the rolling of degree out of so that piston 6 and 1 inner wall of cylinder body and cartoon bearing 63 with
Friction between 1 inner wall of cylinder body reduces, and extends the service life of piston 6.
The protection scope of the utility model is not limited to above embodiments and its transformation.Those skilled in that art are with this implementation
The conventional modification and replacement carried out based on the content of example, belongs to the protection category of the utility model.
Claims (5)
1. a kind of piston sliding bearing structure, it is characterised in that: including cylinder body, upper cylinder cover, lower cylinder cap, mounting rack, the upper cylinder half
Lid and lower cylinder cap are connected to the upper and lower ends of cylinder body by bolt, and the mounting rack is bolted under lower cylinder cap
End is fixed with guide sleeve between the mounting rack and lower cylinder cap, the upper cylinder cover is equipped with the first stomata of connection cylinder body upper end,
The lower cylinder cap is equipped with the second stomata of connection cylinder body lower end, is equipped with the piston being slidably connected in the cylinder body, one end is fixed
In piston and the other end through guide sleeve valve rod, be sheathed on the spring on the outside of valve rod and being fixed between piston and lower cylinder cap,
The lower end of the valve rod is equipped with pointer, and the side of the mounting rack is equipped with the scale plate of corresponding pointer, and the side of the piston is set
There is sliding bearing slot, the position that the side of the piston corresponds to sliding bearing slot upper and lower ends is equipped with seal groove, the sliding
It is arranged with sliding bearing in bearing groove, is arranged with sealing ring in the seal groove.
2. a kind of piston sliding bearing structure according to claim 1, it is characterised in that: the piston uses rubber material
Matter.
3. a kind of piston sliding bearing structure according to claim 1, it is characterised in that: the side of the piston, which is equipped with, to be connected
The lubricating grease of logical sliding bearing slot clogs slot.
4. a kind of piston sliding bearing structure according to claim 1, it is characterised in that: if the sliding bearing is equipped with
The dry ball limit hole being circumferentially spacedly distributed, the ball limit hole is interior to be equipped with ball.
5. a kind of piston sliding bearing structure according to claim 4, it is characterised in that: one end of the ball limit hole
It is connected to lubricating grease and clogs slot, the other end is connected to cylinder interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015966.0U CN209511246U (en) | 2019-01-05 | 2019-01-05 | A kind of piston sliding bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015966.0U CN209511246U (en) | 2019-01-05 | 2019-01-05 | A kind of piston sliding bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209511246U true CN209511246U (en) | 2019-10-18 |
Family
ID=68199638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920015966.0U Active CN209511246U (en) | 2019-01-05 | 2019-01-05 | A kind of piston sliding bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209511246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864158A (en) * | 2019-12-18 | 2020-03-06 | 昆山新莱洁净应用材料股份有限公司 | Long-life pneumatic actuator |
-
2019
- 2019-01-05 CN CN201920015966.0U patent/CN209511246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864158A (en) * | 2019-12-18 | 2020-03-06 | 昆山新莱洁净应用材料股份有限公司 | Long-life pneumatic actuator |
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