CN210949344U - Piston rod transmission structure - Google Patents
Piston rod transmission structure Download PDFInfo
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- CN210949344U CN210949344U CN201921660099.2U CN201921660099U CN210949344U CN 210949344 U CN210949344 U CN 210949344U CN 201921660099 U CN201921660099 U CN 201921660099U CN 210949344 U CN210949344 U CN 210949344U
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- piston
- hole
- connecting rod
- spring
- end cover
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Abstract
The utility model provides a piston rod transmission structure, which comprises a piston rod and a piston cylinder, wherein the piston cylinder comprises a cylinder body, a first end cover and a second end cover, a first through hole and a second through hole which are communicated are arranged in the first end cover, the piston rod comprises a piston, a support plate, a first connecting rod and a second connecting rod, the piston is connected with the first connecting rod, the support plate is sleeved on the first connecting rod and is connected with the piston through a first spring, the first connecting rod is sleeved with a second spring, when the piston moves over-large towards the first end cover, the impact can be reduced by the support plate under the action of the first spring, the buffer action is realized, the impact on the cylinder body caused by the overlarge moving distance of the piston rod is prevented, the impact of the piston rod in the moving process towards the second end cover can be effectively reduced by the arranged second spring, therefore, the impact generated in the process of moving the piston rod in two directions is reduced, and the motion stability and the service life of the rotating structure of the piston rod are improved.
Description
Technical Field
The utility model relates to a mechanical transmission spare part technical field especially relates to a piston rod transmission structure.
Background
The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. When piston rod and piston load were too big, need set up buffer unit in order to prevent that the piston from causing the impact to the cylinder body, produce great vibration, and then influence the stable flow of hydraulic oil in the jar and piston and cylinder body life.
SUMMERY OF THE UTILITY MODEL
In view of this, the technical problem to be solved by the present invention is: how to provide a piston rod transmission device which can facilitate the length of a piston rod to realize the adjustment of the piston power.
In order to achieve the above object, the present invention provides a piston rod transmission structure, which comprises a piston rod and a piston cylinder, wherein the piston cylinder comprises a cylinder body, a first end cap and a second end cap, the first end cap and the second end cap are respectively fixedly connected to two ends of the cylinder body, a first through hole and a second through hole are formed in the first end cap and are communicated with each other, the first through hole is located above the second through hole, the diameter of the first through hole is larger than that of the second through hole, a stepped hole is formed by the first through hole and the second through hole, the piston rod comprises a piston, a support plate, a first connecting rod and a second connecting rod, the piston is connected with the first connecting rod, the support plate is sleeved on the first connecting rod, the support plate is located between the piston and the end face of the first end cap, the support plate is connected with a first spring through which the piston passes, the piston can move in the cylinder body, the first connecting rod penetrates through the first through hole and the second through hole, the second connecting rod penetrates through the first through hole, the first connecting rod is sleeved with the second spring, one end of the second spring abuts against the end face of the second connecting rod, and the other end of the second spring abuts against the step faces of the first through hole and the second through hole.
Furthermore, a third through hole for accommodating the first connecting rod is formed in the supporting plate.
Further, the first spring is arranged in a circumferential direction of the axis of the first link.
Further, the first end cover and the second end cover are respectively connected with the cylinder body through bolts.
Compared with the prior art, the utility model provides a piston rod transmission structure, it includes piston rod and piston cylinder, the piston cylinder includes the cylinder body, the first end cap, the second end cap, the first end cap and the second end cap are respectively fixed connection in the both ends of cylinder body, the sleeve is fixed with the first end cap and is connected, set up communicating first through-hole and second through-hole in the first end cap, the first through-hole is located the top of second through-hole, and the diameter of first through-hole is greater than the diameter of second through-hole, form the shoulder hole by first through-hole and second through-hole, the piston rod includes the piston, the backup pad, first connecting rod and second connecting rod, the piston links to each other with the first connecting rod, the backup pad is located between piston and the first end cap terminal surface, the backup pad links to each other with the first spring that the piston passes through, the piston can move in the cylinder body, the first connecting rod wears to locate in first through, the second connecting rod penetrates through the first through hole and the third through hole, the first connecting rod is sleeved with the second spring, one end of the second spring is abutted to the end face of the second connecting rod, the other end of the second spring is abutted to the step face of the first through hole and the second through hole, when the piston moves towards the first end cover to be overlarge, the impact can be reduced under the action of the first spring by the supporting plate, the buffering effect is realized, the impact on the cylinder body caused by overlarge moving distance of the piston rod is prevented, the impact of the piston rod in the moving process towards the second end cover can be effectively reduced by the second spring, the impact generated in the moving process of the piston rod in the two directions is reduced, and the motion stability and the service life of the rotating structure of the piston rod are improved.
Drawings
Fig. 1 is a schematic structural diagram of a piston rod transmission structure in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Please refer to fig. 1, the present invention provides a piston rod transmission structure, which includes a piston rod and a piston cylinder, the piston cylinder includes a cylinder body 13, a first end cap 11, a second end cap 12, the first end cap 11 and the second end cap 12 are respectively fixedly connected to two ends of the cylinder body 13, specifically, the first end cap 11 and the second end cap 12 are respectively connected to the cylinder body 13 through bolts. The first end cover 11 is provided with a first through hole 111 and a second through hole 112 which are communicated with each other, the diameter of the first through hole 111 is larger than that of the second through hole 112, and a stepped hole is formed by the first through hole 111 and the second through hole 112.
The piston rod includes piston 23, backup pad 24, first connecting rod 21 and second connecting rod 22, piston 23 can move in cylinder body 13, piston 23 links to each other with first connecting rod 21, set up the third through-hole that is used for holding first connecting rod 21 on the backup pad 24, first connecting rod 21 is located to the backup pad 24 cover, backup pad 24 is located between piston 23 and the first end cover 11 terminal surface, backup pad 24 links to each other with first spring 25 that piston 23 passes through, a plurality of first springs 25 are laid along the circumference of the axis of first connecting rod 21, realize by first spring 25 that piston 23 moves towards the cushioning effect when first end cover 11, prevent to cause the impact to first end cover 11.
The first connecting rod 21 penetrates through the first through hole 111 and the second through hole 112, the second connecting rod 22 penetrates through the first through hole 111, the first connecting rod 21 is connected with the second spring 26 in a sleeved mode, one end of the second spring 26 abuts against the end face of the second connecting rod 22, the other end of the second spring 26 abuts against the step face of the first through hole 111 and the step face of the second through hole 112, the second spring 26 achieves a buffering effect when the second connecting rod 22 pushes the piston 23 to move towards the second end cover 12, and the second connecting rod 22 is prevented from impacting the first end cover 11 and the second end cover 12 due to the piston 23.
To sum up, the utility model provides a piston rod transmission structure, which comprises a piston rod and a piston cylinder, wherein the piston cylinder comprises a cylinder body, a first end cover and a second end cover, the first end cover and the second end cover are respectively fixedly connected with two ends of the cylinder body, a sleeve is fixedly connected with the first end cover, a first through hole and a second through hole which are communicated are arranged in the first end cover, the first through hole is positioned above the second through hole, the diameter of the first through hole is larger than that of the second through hole, a stepped hole is formed by the first through hole and the second through hole, the piston rod comprises a piston, a support plate, a first connecting rod and a second connecting rod, the piston is connected with the first connecting rod, the support plate is sleeved on the first connecting rod, the support plate is positioned between the end face of the piston and the first end cover, the support plate is connected with a first spring through which the piston passes, the piston can move in the cylinder body, the second connecting rod penetrates through the first through hole and the third through hole, the first connecting rod is sleeved with the second spring, one end of the second spring is abutted to the end face of the second connecting rod, the other end of the second spring is abutted to the step face of the first through hole and the second through hole, when the piston moves towards the first end cover to be overlarge, the impact can be reduced under the action of the first spring by the supporting plate, the buffering effect is realized, the impact on the cylinder body caused by overlarge moving distance of the piston rod is prevented, the impact of the piston rod in the moving process towards the second end cover can be effectively reduced by the second spring, the impact generated in the moving process of the piston rod in the two directions is reduced, and the motion stability and the service life of the rotating structure of the piston rod are improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. A piston rod transmission structure is characterized by comprising a piston rod and a piston cylinder, wherein the piston cylinder comprises a cylinder body, a first end cover and a second end cover, the first end cover and the second end cover are respectively and fixedly connected to two ends of the cylinder body, a first through hole and a second through hole which are communicated are formed in the first end cover, the first through hole is located above the second through hole, the diameter of the first through hole is larger than that of the second through hole, a stepped hole is formed by the first through hole and the second through hole, the piston rod comprises a piston, a support plate, a first connecting rod and a second connecting rod, the piston is connected with the first connecting rod, the support plate is sleeved on the first connecting rod and located between the piston and the end face of the first end cover, the support plate is connected with the piston through a first spring, and the piston can move in the cylinder body, the first connecting rod penetrates through the first through hole and the second through hole, the second connecting rod penetrates through the first through hole, the first connecting rod is sleeved with the second spring, one end of the second spring is abutted to the end face of the second connecting rod, and the other end of the second spring is abutted to the step face of the first through hole and the second through hole.
2. The piston rod drive according to claim 1, wherein said support plate defines a third aperture therethrough for receiving said first connecting rod.
3. The piston rod transmission structure as claimed in claim 1, wherein said first spring is arranged in a circumferential direction of an axis of said first link.
4. The piston rod transmission structure according to claim 1, wherein the first end cap and the second end cap are respectively connected to the cylinder body by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660099.2U CN210949344U (en) | 2019-10-03 | 2019-10-03 | Piston rod transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660099.2U CN210949344U (en) | 2019-10-03 | 2019-10-03 | Piston rod transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949344U true CN210949344U (en) | 2020-07-07 |
Family
ID=71379729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921660099.2U Active CN210949344U (en) | 2019-10-03 | 2019-10-03 | Piston rod transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949344U (en) |
-
2019
- 2019-10-03 CN CN201921660099.2U patent/CN210949344U/en active Active
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