CN220267919U - Piston rubber sealing body - Google Patents
Piston rubber sealing body Download PDFInfo
- Publication number
- CN220267919U CN220267919U CN202321963013.XU CN202321963013U CN220267919U CN 220267919 U CN220267919 U CN 220267919U CN 202321963013 U CN202321963013 U CN 202321963013U CN 220267919 U CN220267919 U CN 220267919U
- Authority
- CN
- China
- Prior art keywords
- rubber sealing
- sealing body
- piston rubber
- piston
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 8
- 229920003225 polyurethane elastomer Polymers 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000008363 butyronitriles Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a piston rubber sealing body, and belongs to the technical field of manufacturing of rubber sealing products in mechanical products. The main technical characteristics are that the upper and lower surfaces of the piston rubber sealing body of the annular body are arc-shaped structures, and the section of the piston rubber sealing body is of a conical structure or a trapezoid structure inside and outside. The utility model has reasonable structural design and low manufacturing cost, has various internal density during use, can effectively improve the wear resistance of products, prolongs the service life, can greatly improve the working efficiency of the slurry pump, and can obviously improve the sealing effect. The utility model can be widely applied to a hydraulic end system in a drilling mud pump.
Description
Technical Field
The utility model relates to a sealing device, in particular to a piston rubber sealing body, and belongs to the technical field of manufacturing of rubber sealing products in mechanical products. The main function of the sealing device is to increase the sealing performance between metals in petroleum machinery products.
Background
The piston rubber seal is a major component of the fluid end system in a drilling mud pump and is also one of the most frequently used wearing parts in a mud pump. The piston rubber seal is a rubber vulcanized product, the section of the existing piston rubber seal is of a rectangular structure, the material is nitrile rubber, and polyurethane rubber can be used as a base material to improve the working temperature range of rubber materials. The conventional piston rubber seal has the problem that the two sides bear pressure simultaneously when the piston rubber seal is used because the cross section is of a rectangular structure, and rubber sealing materials with the same density can be produced in rubber materials, so that the sealing device is scrapped once the density is broken.
Disclosure of Invention
The utility model aims to solve the problems that the existing piston rubber seals are the same in thickness, the internal density is single under external pressure when in use, the wear resistance is poor, the service life is short, the working efficiency is low, and the sealing effect is poor, so that a new technical scheme is provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a piston rubber sealing body is an annular body structure made of rubber materials, and a concentric round hole is arranged in the middle of the annular body piston rubber sealing body. The upper and lower surfaces of the piston rubber sealing body are arc-shaped structures, and the section of the piston rubber sealing body is of a conical structure.
The cross section of the piston rubber sealing body is of a trapezoid structure.
The cross section of the piston rubber sealing body is of a prismatic structure.
Compared with the prior art, the utility model has the advantages that: the structure design is reasonable, the manufacturing cost is low, the internal density has diversity during use, the wear resistance of the product can be effectively improved, the service life is prolonged, and the working efficiency of the slurry pump can be greatly improved. Preventing leakage of fluid or solid particles from between adjacent joint surfaces and preventing intrusion of foreign matters such as dust and moisture into the interior of the machine. The sealing effect can be obviously improved
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1 of the present utility model.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, in which some, but not all embodiments of the utility model are shown.
A piston rubber sealing body is an annular piston rubber sealing body 1 with a thickness of 10-22.55 mm, concentric round holes 2 are arranged in the middle of the annular piston rubber sealing body 1, the upper surface and the lower surface of the piston rubber sealing body 1 are of arc-shaped structures in the radial direction, the cross section of the piston rubber sealing body is of a triangular structure, the inner surface and the outer surface of the cross section are of conical structures, the cross section of the piston rubber sealing body 1 can also be of a trapezoid structure, or the cross section of the piston rubber sealing body 1 is of a prismatic structure, so that the piston rubber sealing body 1 has different thicknesses in different diameters, and rubber density is larger and larger from the inner diameter to the near outer diameter under the same pressure when the piston rubber sealing body is used, and the sealing effect is more and more remarkable.
Experiments prove that: compared with the prior art, the utility model can effectively improve the wear resistance, prolong the service life and greatly improve the working efficiency of the slurry pump.
The piston rubber sealing body 1 is a main accessory in a hydraulic end system in a drilling mud pump, is a key part of the service life of a valve body, and is one of the wearing parts with the largest use amount in the mud pump. Because the utility model is of a non-rectangular structure and has different thicknesses in the vertical direction, when in use, different rubber densities can be generated under the same pressure, and compared with the common piston rubber seal, the wear resistance can be effectively improved, the service life can be prolonged, and the working efficiency of the slurry pump can be improved.
The piston rubber seal 1 may be made of three materials, namely nitrile rubber, polyurethane rubber and hydrogenated nitrile rubber. 1. Nitrile rubber: its advantages are high oil resistance, high antiwear nature, high heat resistance and high adhesion. Its disadvantages are poor low temperature resistance, poor insulating properties and slightly low elasticity. The service time is about 200 hours; 2. polyurethane rubber: has the advantages of high hardness, good strength, high elasticity, high wear resistance, tear resistance, aging resistance, ozone resistance, radiation resistance, good conductivity and the like. The service life is about 400 hours; 3. hydrogenated butyronitrile: hydrogenated nitrile rubber (HNBR) is a highly saturated elastomer obtained by special hydrotreatment of nitrile rubber. The hydrogenated nitrile rubber has good oil resistance and good resistance to fuel oil, lubricating oil and aromatic solvents; the composite material has good heat resistance, good chemical corrosion resistance, good resistance to freon, acid and alkali, excellent ozone resistance and higher compression set resistance; meanwhile, the hydrogenated nitrile rubber has the characteristics of high strength, high tearing property, excellent wear resistance and the like. The service life can reach 600 hours.
Claims (3)
1. The piston rubber sealing body is of an annular body structure made of rubber materials, and a concentric circular hole (2) is formed in the middle of the annular body piston rubber sealing body (1), and is characterized in that: the upper and lower surfaces of the piston rubber sealing body (1) are arc-shaped structures, and the section of the piston rubber sealing body is of a conical structure.
2. A piston rubber seal as defined in claim 1, wherein: the cross section of the piston rubber sealing body (1) is of a trapezoid structure.
3. A piston rubber seal as defined in claim 1, wherein: the cross section of the piston rubber sealing body (1) is of a prismatic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321963013.XU CN220267919U (en) | 2023-07-18 | 2023-07-18 | Piston rubber sealing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321963013.XU CN220267919U (en) | 2023-07-18 | 2023-07-18 | Piston rubber sealing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267919U true CN220267919U (en) | 2023-12-29 |
Family
ID=89316618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321963013.XU Active CN220267919U (en) | 2023-07-18 | 2023-07-18 | Piston rubber sealing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267919U (en) |
-
2023
- 2023-07-18 CN CN202321963013.XU patent/CN220267919U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |