CN216477805U - High-strength aluminum alloy piston cup liner - Google Patents
High-strength aluminum alloy piston cup liner Download PDFInfo
- Publication number
- CN216477805U CN216477805U CN202122915247.4U CN202122915247U CN216477805U CN 216477805 U CN216477805 U CN 216477805U CN 202122915247 U CN202122915247 U CN 202122915247U CN 216477805 U CN216477805 U CN 216477805U
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- CN
- China
- Prior art keywords
- piston
- liner
- cup
- aluminum alloy
- gasket
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 20
- 239000010985 leather Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims 3
- 229920001971 elastomer Polymers 0.000 abstract description 15
- 239000004677 Nylon Substances 0.000 abstract description 13
- 229920001778 nylon Polymers 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a high-strength aluminum alloy piston cup liner, and belongs to the technical field of oil field drilling mud pumps. The piston comprises a piston cup and a piston core body, wherein the piston cup comprises a liner and an elastic body; the piston leather cup is sleeved on the piston core body, the front end of the piston leather cup is provided with a pressing plate, the pressing plate and the piston core body are fixed through a clamp spring, the outer wall of the rear end of the elastic body is provided with an annular groove, and a liner is bonded in the annular groove; the liner is made of aluminum alloy. The utility model solves the problems that the traditional nylon liner and the liner made of cloth-sandwiched rubber materials have no high temperature resistance, low strength, complex processing technology and higher cost.
Description
Technical Field
The utility model relates to the technical field of oil field drilling mud pumps, in particular to a high-strength aluminum alloy piston cup liner.
Background
In the process of drilling in an oil field, a mud pump is often used for carrying out rock debris and circulating drilling fluid out of a well bottom, the mud pump completes the construction process through the reciprocating motion of a piston, the piston, a hydraulic cylinder and a leather cup form a closed cavity, when the leather cup of the piston reciprocates along with the piston, the working environment of the mud pump is quite severe, firstly, the mud pump bears higher pressure, secondly, the mud pump has good sealing performance with the hydraulic cylinder, thirdly, high-viscosity, high-density, high-sand-content and high-corrosivity liquid is conveyed, and the fluidity is relatively small. The traditional leather cup is made of a nylon liner and a polyurethane elastomer or a cloth-sandwiched rubber liner and a polyurethane elastomer, after being heated, the nylon liner expands to generate friction heat with the wall of the cylinder sleeve, and cooling water is blocked by the expanded liner, so that the elastomer at the front end cannot be effectively cooled; the processing technology of the cloth-sandwiched rubber gasket is complex and the cost is high; due to the characteristics of nylon and cloth-sandwiched rubber, the rubber is easy to soften prematurely under the high-temperature and high-pressure working environment, cannot well play a role in supporting the elastomer, is not corrosion-resistant, and is easy to cause the elastomer to deflect and extrude into slurry to cause leakage after the backseat loses the supporting force.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-strength aluminum alloy piston cup liner, which solves the problems that the traditional nylon liner and a liner made of cloth-sandwiched rubber are not low in high-temperature resistance and low in strength, the liner is softened under the conditions of high temperature and high pressure, the liner is not tightly combined with a sealing piece, mud is easily squeezed into a softened gap, the nylon liner is easy to expand at high temperature, generates friction heat with a cylinder sleeve wall, cooling water is blocked by the expanded liner, and a front-end elastomer cannot be effectively cooled.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a high-strength aluminum alloy piston cup liner comprises a piston cup and a piston valve core, wherein the piston cup comprises a liner and an elastic body; the piston cup is sleeved on the piston valve core, the front end of the piston cup is provided with a pressing plate, the pressing plate and the piston valve core are fixed through a clamp spring, the outer wall of the rear end of the elastic body is provided with an annular groove, and a liner is bonded in the annular groove; the liner is made of aluminum alloy.
Furthermore, the front end of the liner is provided with a groove, and a bulge matched with the groove is correspondingly arranged on the piston cup.
Furthermore, the cross section of the grooves is triangular, and the number of the grooves is 5.
Further, the section of the gasket is rectangular.
Further, the liner is a hollow cylinder, and the size of the liner is matched with that of the annular groove.
The utility model has the following beneficial effects: according to the utility model, the gasket made of the aluminum alloy material is used for replacing the traditional nylon gasket and the gasket made of the cloth-sandwiched rubber material, so that the problems that the traditional gasket is easy to soften and is not tightly combined with a sealing element under a high-temperature and high-pressure environment, mud is easy to squeeze into the softened gap, the nylon gasket is easy to expand at high temperature, friction heat is generated between the nylon gasket and the wall of the cylinder sleeve, cooling water is blocked by the expanded gasket, and an elastic body at the front end cannot be effectively cooled are solved; the processing technology of the liner made of the cloth-sandwiched rubber material is complex; meanwhile, the traditional liner is not corrosion-resistant, is easy to corrode in severe environment and needs to be replaced, and the enterprise cost is increased.
Drawings
FIG. 1 is a schematic view of the overall structure of a piston according to the present invention;
FIG. 2 is a schematic diagram of a piston cup liner of the present invention.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1 and 2, the technical solution adopted by the present invention to solve the technical problem is: a high-strength aluminum alloy piston cup liner comprises a piston cup 1 and a piston valve core 2, wherein the piston cup 1 comprises a liner 3 and an elastic body 4; the piston cup 1 is sleeved on the piston valve core 2, the front end of the piston cup 1 is provided with a pressing plate 5, the pressing plate 5 and the piston valve core 2 are fixed through a clamp spring 6, the outer wall of the rear end of the elastic body 4 is provided with an annular groove 7, and a gasket 3 is bonded in the annular groove 7; the liner 3 is made of aluminum alloy.
The front end of the liner 3 is provided with a groove 8, and the piston cup 1 is correspondingly provided with a bulge 9 matched with the groove 8.
The cross section of the groove 8 is triangular, and the number of the grooves 8 is 5.
The cross-section of the gasket 3 is rectangular.
The gasket 3 is a hollow cylinder, and the size of the gasket 3 is matched with that of the annular groove 7.
The utility model has the following beneficial effects: according to the utility model, the gasket made of the aluminum alloy material is used for replacing the traditional nylon gasket and the gasket made of the cloth-sandwiched rubber material, so that the problems that the traditional gasket is easy to soften and is not tightly combined with a sealing element under a high-temperature and high-pressure environment, mud is easy to squeeze into the softened gap, the nylon gasket is easy to expand at high temperature, friction heat is generated between the nylon gasket and the wall of the cylinder sleeve, cooling water is blocked by the expanded gasket, and an elastic body at the front end cannot be effectively cooled are solved; the processing technology of the liner made of the cloth-sandwiched rubber material is complex; meanwhile, the traditional liner is not corrosion-resistant, is easy to corrode in severe environment and needs to be replaced, and the enterprise cost is increased.
The aluminum alloy lining pad is adopted to replace the traditional nylon lining pad and the cloth-sandwiched rubber lining pad, so that the strength of the piston cup lining pad is increased, and the aluminum alloy lining pad has good mechanical property, corrosion resistance, good oxidation resistance, wide applicability, easiness in processing, good wear resistance, low production cost and small expansion coefficient; the front end of the liner is provided with a groove, and the piston cup is correspondingly provided with a matched bulge, so that the liner and the piston cup are combined more stably and are not easy to fall off; the grooves are arranged to eliminate stress concentration and prolong the service life of the piston cup.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. The present invention is not limited to the above-described embodiments, which are described in the specification and illustrated only for illustrating the principle of the present invention, but various changes and modifications may be made within the scope of the present invention as claimed without departing from the spirit and scope of the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a high strength aluminum alloy piston leather cup liner which characterized in that: the piston packing cup comprises a piston packing cup (1) and a piston valve core (2), wherein the piston packing cup (1) comprises a liner (3) and an elastic body (4); the piston leather cup (1) is sleeved on the piston valve core (2), a pressing plate (5) is arranged at the front end of the piston leather cup (1), the pressing plate (5) and the piston valve core (2) are fixed through a clamp spring (6), an annular groove (7) is formed in the outer wall of the rear end of the elastic body (4), and a gasket (3) is bonded in the annular groove (7); the liner (3) is made of aluminum alloy.
2. The high strength aluminum alloy piston cup liner of claim 1 wherein: the front end of the gasket (3) is provided with a groove (8), and the piston cup (1) is correspondingly provided with a bulge (9) matched with the groove (8).
3. The high strength aluminum alloy piston cup liner of claim 2 wherein: the cross section of the groove (8) is triangular, and the number of the grooves (8) is 5.
4. The high strength aluminum alloy piston cup liner of claim 1 wherein: the section of the gasket (3) is rectangular.
5. The high strength aluminum alloy piston cup liner of claim 1 wherein: the gasket (3) is a hollow cylinder, and the size of the gasket (3) is matched with that of the annular groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122915247.4U CN216477805U (en) | 2021-11-25 | 2021-11-25 | High-strength aluminum alloy piston cup liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122915247.4U CN216477805U (en) | 2021-11-25 | 2021-11-25 | High-strength aluminum alloy piston cup liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216477805U true CN216477805U (en) | 2022-05-10 |
Family
ID=81400745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122915247.4U Active CN216477805U (en) | 2021-11-25 | 2021-11-25 | High-strength aluminum alloy piston cup liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216477805U (en) |
-
2021
- 2021-11-25 CN CN202122915247.4U patent/CN216477805U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high-strength aluminum alloy piston cup liner Effective date of registration: 20230925 Granted publication date: 20220510 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chizhou branch Pledgor: ANHUI JULI OIL DRILLING EQUIPMENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980058513 |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 28 Tangxi Road, Guichi District, Chizhou City, Anhui Province, 247100 Patentee after: ANHUI JULI OIL DRILLING EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 247100 No.17 workshop, new material industrial park, Jiangnan industrial concentration zone, Chizhou City, Anhui Province Patentee before: ANHUI JULI OIL DRILLING EQUIPMENT TECHNOLOGY Co.,Ltd. |