CN212106432U - A cushion cylinder for coal bed gas rig - Google Patents
A cushion cylinder for coal bed gas rig Download PDFInfo
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- CN212106432U CN212106432U CN202020463575.8U CN202020463575U CN212106432U CN 212106432 U CN212106432 U CN 212106432U CN 202020463575 U CN202020463575 U CN 202020463575U CN 212106432 U CN212106432 U CN 212106432U
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Abstract
The utility model relates to a cushion cylinder for coal bed gas rig. The device comprises a cylinder barrel and a cylinder cover, wherein a piston rod is inserted in the cylinder cover, the free end of the piston rod is connected with a piston, the upper end and the lower end of the piston are both connected with conical surface gaskets which are coaxial with the piston rod, a spherical surface gasket is arranged on the inner bottom surface of the cylinder barrel and is matched and connected with the conical surface gasket at one end of the piston, when in connection, a first annular gap for oil inlet is reserved between the spherical surface gasket and the corresponding conical surface gasket, when in connection, a second annular gap for oil inlet is reserved between the cylinder cover and the corresponding conical surface gasket, the device is provided with the spherical surface gasket and the conical surface gaskets arranged on the two sides of the piston, when the piston and the piston rod move, the cylinder cover and the spherical surface gasket are respectively connected with the corresponding conical surface gasket, a first annular gap is reserved between the spherical surface gasket and the corresponding conical surface gasket, and oil, has good practicability.
Description
Technical Field
The utility model belongs to the technical field of the hydro-cylinder, especially, relate to a cushion cylinder for coal bed gas rig.
Background
The patent of a buffer oil cylinder of a wringing stretcher is disclosed in the existing Chinese patent database, the application number is CN201320786708.5, the application date is 20131204, the publication number is CN203683558U and the publication number is 20140702, the patent comprises an end cover, a plunger, a cylinder barrel and a base, one end of the plunger is provided with a buffer plunger, the base is internally provided with a freely movable buffer ring and a positioning ring for limiting the buffer ring, and during operation, the buffer plunger is in clearance fit with the buffer ring, and the defect is that: when the oil cylinder moves up and down on the piston rod, when the oil cylinder moves to the upper limit position and the lower limit position, the piston can have the risk of colliding with the cylinder cover and the bottom of the cylinder barrel, and the piston rod and the piston are easily damaged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current hydro-cylinder lacks necessary buffer, leads to piston rod and piston to take place to damage, in order to improve its weak point, the utility model provides a buffer cylinder for coal bed gas rig.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the utility model provides a cushion cylinder for coal bed gas drilling machine, includes that cylinder and lid close the cylinder cap at the cylinder opening part, it has the piston rod that extends to in the cylinder to peg graft on the cylinder cap, and the piston rod free end that is located in the cylinder is connected with the piston, both ends all are connected with the conical surface packing ring coaxial with the piston rod about the piston, and the bottom surface is provided with the spherical surface packing ring coaxial with the cylinder in the cylinder, and the spherical surface packing ring is connected with the conical surface packing ring cooperation of piston one end, and during the connection, leave the first annular gap of oil feed between spherical surface packing ring and the conical surface packing ring that corresponds, seted up the oil inlet on the cylinder that first annular gap is relative, and the cylinder end that is located in the cylinder personally submits the spherical gasket form, during the connection, leaves the second annular gap of oil feed between cylinder cap.
The utility model discloses the during operation, when the piston rod moves the cylinder bottom, the conical surface packing ring that the piston corresponds the end is connected with the spherical surface packing ring cooperation that is located the cylinder bottom, connect the back, leave the first annular gap of oil feed between spherical surface packing ring and the conical surface packing ring that corresponds, fluid in the first annular gap produces certain damping, make piston and piston rod receive the conflict, thereby obtain certain buffering, it is same, when the conical surface packing ring that corresponds on cylinder cap terminal surface and the piston is connected, leave the second annular gap of oil feed between cylinder cap and the conical surface packing ring that corresponds, fluid in the second annular gap produces certain damping, make piston and piston rod receive the conflict, thereby obtain certain buffering.
Compared with the prior art, the beneficial effects of the utility model are that: this device is provided with spherical surface packing ring and piston both sides and sets up the conical surface packing ring, and during piston and piston rod motion, the cylinder cap is connected with the conical surface packing ring that corresponds respectively with the spherical surface packing ring, leaves first annular gap between spherical surface packing ring and the conical surface packing ring that corresponds, leaves fluid in the first annular gap to play the effect of buffering when moving piston and piston rod, the device is applicable to in the industrial production, has good practicality.
A groove for inserting the corresponding end of the piston rod is arranged on the spherical washer facing one end of the piston. The piston rod end and the inner wall of the cylinder barrel are prevented from being impacted by the grooves, the piston rod is effectively protected, and the service life of the piston rod is prolonged.
The spherical gasket is made of rubber.
Two locking nuts are screwed at intervals at the free end of the piston rod positioned in the cylinder barrel, a piston is sleeved on the piston rod positioned between the two locking nuts, and the piston is fixedly connected to the piston rod through the two locking nuts.
The free end of the piston rod positioned outside the cylinder barrel is connected with an earring, and the bottom surface positioned outside the cylinder barrel is provided with a hinge joint connected with an external hinge seat.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the oil cylinder comprises a cylinder barrel 1, a cylinder cover 2, a piston rod 3, a piston 4, a conical surface gasket 5, a spherical surface gasket 6, a groove 601, a first annular gap 7, a second annular gap 8, an oil inlet 9, an oil outlet 10, a locking nut 11, an earring 12 and a hinge joint 13.
Detailed Description
The technical solution of the present application will be further described and explained with reference to the accompanying drawings and embodiments.
As shown in figure 1, the cushion cylinder for the coal bed gas drilling machine comprises a cylinder barrel 1 and a cylinder cover 2 covering the opening of the cylinder barrel 1, a piston rod 3 extending into the cylinder barrel 1 is inserted into the cylinder cover 2, the free end of the piston rod 3 positioned in the cylinder barrel 1 is connected with a piston 4, the upper end and the lower end of the piston 4 are both connected with conical washers 5 coaxial with the piston rod 3, a spherical washer 6 coaxial with the cylinder barrel 1 is arranged on the inner bottom surface of the cylinder barrel 1, the spherical washer 6 is matched and connected with the conical washer 5 at one end of the piston 4, when in connection, a first annular gap 7 for oil inlet is reserved between the spherical washer 6 and the corresponding conical washer 5, an oil inlet 9 is arranged on the cylinder barrel 1 opposite to the first annular gap 7, the end surface of the cylinder cover 2 positioned in the cylinder barrel 1 is in a spherical washer shape, when in connection, a second annular gap 8 for oil inlet is reserved, an oil outlet 10 is arranged on the cylinder barrel 1 opposite to the second annular gap 8. A groove 601 for inserting the corresponding end of the piston rod 3 is formed on the spherical washer 6 facing one end of the piston 4. The arrangement of the groove 601 avoids the collision between the end of the piston rod 3 and the inner wall of the cylinder barrel 1, effectively protects the piston rod 3 and prolongs the service life of the piston rod 3. The spherical washer 6 is made of rubber. Two locking nuts 11 are screwed at intervals at the free end of the piston rod 3 positioned in the cylinder barrel 1, a piston 4 is sleeved on the piston rod 3 positioned between the two locking nuts 11, and the piston 4 is fixedly connected on the piston rod 3 through the two locking nuts 11. The free end of the piston rod 3 positioned outside the cylinder barrel 1 is connected with an earring 12, and the bottom surface positioned outside the cylinder barrel 1 is provided with a hinge joint 13 connected with a peripheral hinge joint seat.
During operation, when piston rod 3 moves to cylinder 1 bottom, the conical surface packing ring 5 that piston 4 corresponds the end is connected with the spherical surface packing ring 6 cooperation that is located the bottom in cylinder 1, after the connection, spherical surface packing ring 6 leaves the first annular gap 7 of oil feed with corresponding conical surface packing ring 5 between, oil in the first annular gap 7 produces certain damping, make piston 4 and piston rod 3 receive contradicting, thereby obtain certain buffering, equally, when 2 terminal surfaces of cylinder cap are connected with the conical surface packing ring 5 that corresponds on piston 4, leave the second annular gap 8 of oil feed between cylinder cap 2 and the corresponding conical surface packing ring 5, oil in the second annular gap 8 produces certain damping, make piston 4 and piston rod 3 receive contradicting, thereby obtain certain buffering.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (5)
1. The utility model provides a cushion cylinder for coal bed gas rig, closes the cylinder cap at the cylinder opening part including cylinder and lid, and it has the piston rod that extends to in the cylinder to peg graft on the cylinder cap, and the piston rod free end that is located the cylinder is connected with piston, its characterized in that: the piston is characterized in that conical surface gaskets coaxial with the piston rod are connected to the upper end and the lower end of the piston, spherical surface gaskets coaxial with the cylinder barrel are arranged on the inner bottom surface of the cylinder barrel, the spherical surface gaskets are connected with the conical surface gaskets at one end of the piston in a matched mode, a first annular gap for oil inlet is reserved between each spherical surface gasket and the corresponding conical surface gasket during connection, an oil inlet is formed in the cylinder barrel opposite to the first annular gap, the end, located in the cylinder barrel, of the cylinder cover is in a spherical gasket shape, a second annular gap for oil inlet is reserved between the cylinder cover and the corresponding conical surface gasket during connection, and an oil outlet is formed in.
2. The cushion cylinder for the coal bed methane drilling machine according to claim 1, wherein: a groove for inserting the corresponding end of the piston rod is arranged on the spherical washer facing one end of the piston.
3. The cushion cylinder for the coal bed methane drilling machine according to claim 2, wherein: the spherical gasket is made of rubber.
4. The cushion cylinder for the coal bed methane drilling machine according to claim 3, wherein: two locking nuts are screwed at intervals at the free end of the piston rod positioned in the cylinder barrel, a piston is sleeved on the piston rod positioned between the two locking nuts, and the piston is fixedly connected to the piston rod through the two locking nuts.
5. A cushion cylinder for a coal bed methane drilling rig according to any one of claims 1 to 4, wherein: the free end of the piston rod positioned outside the cylinder barrel is connected with an earring, and the bottom surface positioned outside the cylinder barrel is provided with a hinge joint connected with an external hinge seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463575.8U CN212106432U (en) | 2020-04-01 | 2020-04-01 | A cushion cylinder for coal bed gas rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463575.8U CN212106432U (en) | 2020-04-01 | 2020-04-01 | A cushion cylinder for coal bed gas rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106432U true CN212106432U (en) | 2020-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020463575.8U Active CN212106432U (en) | 2020-04-01 | 2020-04-01 | A cushion cylinder for coal bed gas rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106432U (en) |
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2020
- 2020-04-01 CN CN202020463575.8U patent/CN212106432U/en active Active
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Address after: Runshi Road, Chengbei Industrial Park, Jiangdu District, Yangzhou City, Jiangsu Province Patentee after: Sarun hydraulic (Jiangsu) Co.,Ltd. Address before: Runshi Road, Chengbei Industrial Park, Jiangdu District, Yangzhou City, Jiangsu Province Patentee before: Yangzhou Sarun Hydraulic Equipment Co.,Ltd. |