CN210218082U - High-wear-resistance plunger sleeve structure - Google Patents
High-wear-resistance plunger sleeve structure Download PDFInfo
- Publication number
- CN210218082U CN210218082U CN201921081937.0U CN201921081937U CN210218082U CN 210218082 U CN210218082 U CN 210218082U CN 201921081937 U CN201921081937 U CN 201921081937U CN 210218082 U CN210218082 U CN 210218082U
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- China
- Prior art keywords
- plunger
- plunger sleeve
- plunger bushing
- flow channel
- oil
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- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 230000001050 lubricating effect Effects 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 7
- 238000004512 die casting Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000411 inducer Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model provides a high wear-resisting plunger bushing structure, including the plunger bushing main part, the whole shaping of plunger bushing main part is cascaded round axle construction, and the center of plunger bushing also forms cascaded hole structure, and hole structure is coaxial with the axis of plunger bushing, and hole structure link up the both ends of plunger bushing, the one end shaping of the surface of plunger bushing has the flange ring, and the flange ring is long circular cross-sectional structure, and the surface at the both ends of flange ring link up and is provided with the fixed orifices, and the fixed orifices sets up with the axis of plunger bushing relatively, and the plunger bushing passes through the fixed orifices and is connected with the peripheral structure of plunger, and the other end of plunger pump sets up to the structure of path, and has a plurality of sealing rings at the surface shaping, is provided with the sealing washer in the sunken between the sealing ring, hole structure shaping has pressure oil structure chamber and fluid runner part, and this device has the increase of life, the matching precision of the structure is improved, the abrasion is reduced, and the vibration is reduced.
Description
Technical Field
The utility model relates to an improved structure of a movable structure on a plunger pump, in particular to a structure of a high-abrasion-resistance plunger sleeve.
Background
The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. Plunger pumps are widely used in applications where high pressure, high flow and flow needs to be regulated, such as hydraulic machines, engineering machinery and ships.
The plunger sleeve is a structure sleeved on a piston rod of the plunger pump, the plunger sleeve has the main functions of guiding the operation of the piston rod and reducing the abrasion of the piston rod, and meanwhile, the plunger sleeve is also provided with a corresponding flow passage and a corresponding oil pressing cavity, the function of pressing oil is realized along with the operation of the plunger, and the stable operation of the plunger sleeve is realized.
The plunger sleeve is mainly based on an up-and-down motion track in the operation process, the end part of the plunger sleeve is usually large, and an oil outlet structure is sleeved on the plunger sleeve, so that the plunger sleeve is quickly abraded, but the plunger pump is a structure with high sealing requirement, and has no need of repairing under unnecessary conditions, so that the gap of the structure is gradually increased, the plunger pump frequently vibrates, noise easily occurs, and the service life and the service quality of the plunger pump are related to the service life of the plunger sleeve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a high wear-resisting plunger bushing structure.
The utility model provides a technical scheme that above-mentioned problem adopted is: the plunger sleeve comprises a plunger sleeve main body, wherein the plunger sleeve main body is integrally formed into a stepped round shaft structure, a stepped inner hole structure is formed in the center of the plunger sleeve, the inner hole structure is coaxial with the axis of the plunger sleeve and penetrates through the two ends of the plunger sleeve, a flange ring is formed at one end of the outer surface of the plunger sleeve and is of a long circular cross-section structure, fixing holes are formed in the surfaces of the two ends of the flange ring in a penetrating manner and are oppositely arranged along the axis of the plunger sleeve, the plunger sleeve is connected with the peripheral structure of a plunger through the fixing holes, the other end of a plunger pump is of a small-diameter structure, a plurality of sealing rings are formed on the outer surface of the plunger pump, sealing rings are arranged in depressions among the sealing rings, a pressure oil structure cavity and an oil flow passage part are formed in the inner hole structure, the inner diameter of the pressure oil structure cavity is larger than the oil, and a lubricating flow channel is obliquely formed on the side edge of the oil inlet towards the lower end of the flow channel part, and a lubricating flow channel is also formed on the pressure oil structure cavity towards the direction of the inlet section of the oil inlet. This device is an improvement structure of plunger bushing, and the main characteristics have improved the fixed knot of plunger bushing and the circulation structure of fluid to this wearability that improves the structure has the life-span, improves the cooperation precision of structure, and reducing wear reduces the effect of vibrations, has improved overall structure's life-span.
In this scheme, the flange structure is greater than the exterior structure of plunger bushing, through the structural connection of the round of the connection structure of side direction and the periphery of plunger structure, has formed the structure of integral type, improves the stability of structure. The inner hole structure is internally provided with a pressure oil structure for applying pressure, and belongs to a moving part, an internal piston (plunger) rod is also a moving part, the moving parts need to be lubricated, oil directly flows into the moving parts from a liquid inlet through a lubricating flow passage for lubrication, and the lubricated oil is isolated from the flow passage part needing to be pressed, so that the normal oil pressing effect is not influenced.
Furthermore, the plunger sleeve main body is integrally formed by die casting, and corner parts of the plunger sleeve main body are formed into a round corner structure. Plunger sleeve structure formula fashioned processing as an organic whole is difficult to produce fracture and stress concentration, improves the life-span of structure, all can carry out the finish machining to specific size again after the die-casting shaping usually.
Furthermore, the inner diameter of the lubricating flow channel is 1-2 mm, the included angle between the lubricating flow channel and the axis of the plunger sleeve is smaller than 30 degrees, and the edge and the surface of the lubricating flow channel are formed into a smooth surface. The lubricating flow channel has the advantages that the lubricating flow channel is used for conducting the flowing of oil, the smaller inner diameter can flow under the pushing of pressure, a large amount of flowing is not needed, the smoothness is improved, and the blockage is avoided.
Furthermore, a diversion trench is formed in the side face of the inner diameter side of the oil fluid flow channel part, the bottom edge of the diversion trench is communicated with the nearest lubricating flow channel, and the outlet edge of the lubricating flow channel is connected with the diversion trench. The guide groove is used for guiding oil to the whole circumferential structure of the oil flow passage part, and the lubricating effect is improved.
Further, the space between the seal rings is recessed in the outer peripheral surface of the plunger barrel, and a flexible seal rubber ring is provided in the recess, the outer end surface of the seal rubber ring being projected above the outer peripheral surface of the plunger barrel. The sealing ring is used for sealing the movable part outside the plunger sleeve, can be arranged in a plurality of parallel arrangement, and improves the sealing property.
Compared with the prior art, the utility model, have following advantage and effect: this device is an improvement structure of plunger bushing, and the main characteristics have improved the fixed knot of plunger bushing and the circulation structure of fluid to this wearability that improves the structure has the life-span, improves the cooperation precision of structure, and reducing wear reduces the effect of vibrations, has improved overall structure's life-span.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
Fig. 2 is a schematic cross-sectional view at another angle.
In the figure: 1. plunger bushing main part, 2, hole structure, 3, flange ring, 4, fixed orifices, 5, sealing ring, 6, pressure oil structure chamber, 7, fluid runner part, 8, lubrication runner, 9, guiding gutter.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
A high-wear-resistance plunger sleeve structure comprises a plunger sleeve main body 1, wherein the plunger sleeve main body 1 is integrally formed into a stepped round shaft structure, a stepped inner hole structure 2 is formed in the center of the plunger sleeve, the inner hole structure 2 is coaxial with the axis of the plunger sleeve, the inner hole structure 2 penetrates through two ends of the plunger sleeve, a flange ring 3 is formed at one end of the outer surface of the plunger sleeve, the flange ring 3 is of a long circular section structure, fixing holes 4 are formed in the surfaces of two ends of the flange ring 3 in a penetrating mode, the fixing holes 4 are arranged oppositely by the axis of the plunger sleeve, the plunger sleeve is connected with the outer periphery structure of a plunger through the fixing holes 4, the other end of a plunger pump is of a small-diameter structure, a plurality of sealing rings 5 are formed on the outer surface, sealing rings are arranged in depressions between the sealing rings 5, an oil pressure structure cavity 6 and an oil flow passage part 7 are formed, the internal diameter of the oil pressing structure cavity 6 is larger than that of the oil flow passage part 7, an oil inlet hole is arranged on the side of the oil flow passage part 7, a lubricating flow passage 8 is obliquely formed on the side edge of the oil inlet hole towards the lower end of the oil flow passage part, and the lubricating flow passage 8 is also formed on the oil pressing structure cavity 6 towards the direction of an inlet section of the oil inlet hole.
The plunger sleeve main body 1 is integrally formed by die casting, and corner parts of the plunger sleeve main body are formed into round corner structures.
The inner diameter of the lubricating flow channel 8 is 1-2 mm, the included angle between the lubricating flow channel 8 and the axis of the plunger sleeve is smaller than 30 degrees, and the edge and the surface of the lubricating flow channel 8 are formed into a smooth surface.
A diversion trench 9 is formed in the inner diameter side face of the oil fluid channel part 7, the bottom edge of the diversion trench 9 is communicated with the nearest lubricating channel 8, and the outlet edge of the lubricating channel 8 is connected with the diversion trench 9.
The spaces between the seal rings 5 are recessed in the outer peripheral surface of the plunger barrel, and a flexible seal rubber ring is provided in the recess, the outer end surface of the seal rubber ring projecting above the outer peripheral surface of the plunger barrel.
It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a high wear resistant plunger bushing structure, is including plunger bushing main part (1), its characterized in that: the plunger sleeve main body (1) is integrally formed into a stepped round shaft structure, a stepped inner hole structure (2) is formed in the center of the plunger sleeve, the inner hole structure (2) is coaxial with the axis of the plunger sleeve, the inner hole structure (2) penetrates through two ends of the plunger sleeve, a flange ring (3) is formed at one end of the outer surface of the plunger sleeve, the flange ring (3) is of a long circular section structure, fixing holes (4) are formed in the surfaces of two ends of the flange ring (3) in a penetrating mode, the fixing holes (4) are oppositely arranged through the axis of the plunger sleeve, the plunger sleeve is connected with the periphery structure of a plunger through the fixing holes (4), the other end of a plunger pump is of a small-diameter structure, a plurality of sealing rings (5) are formed on the outer surface, sealing rings (5) are arranged in depressions among the sealing rings, an oil pressure structure cavity (6) and an oil liquid flow passage part (7) are formed, the internal diameter of pressing oil structure chamber (6) is greater than fluid runner part (7), and fluid runner part (7) side direction is provided with the inlet port, the side slant shaping of inlet port has lubricated runner (8) to the lower extreme slant of runner part, it also has lubricated runner (8) to the inducer direction of inlet port to press oil structure chamber (6).
2. The highly wear resistant plunger sleeve structure of claim 1, wherein: the plunger sleeve main body (1) is integrally formed by die casting, and corner parts are formed into round corner structures.
3. The highly wear resistant plunger sleeve structure of claim 1, wherein: the inner diameter of the lubricating flow channel (8) is 1-2 mm, the included angle between the lubricating flow channel (8) and the axis of the plunger sleeve is smaller than 30 degrees, and the edge and the surface of the lubricating flow channel (8) are formed into smooth surfaces.
4. The highly wear resistant plunger sleeve structure of claim 1, wherein: a diversion trench (9) is formed in the inner diameter side face of the oil fluid flow channel part (7), the bottom edge of the diversion trench (9) is communicated with the nearest lubricating flow channel (8), and the outlet edge of the lubricating flow channel (8) is connected with the diversion trench (9).
5. The highly wear resistant plunger sleeve structure of claim 1, wherein: the space between the seal rings (5) is recessed in the outer peripheral surface of the plunger barrel, and a flexible seal rubber ring is provided in the recess, the outer end surface of the seal rubber ring projecting above the outer peripheral surface of the plunger barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921081937.0U CN210218082U (en) | 2019-07-11 | 2019-07-11 | High-wear-resistance plunger sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921081937.0U CN210218082U (en) | 2019-07-11 | 2019-07-11 | High-wear-resistance plunger sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218082U true CN210218082U (en) | 2020-03-31 |
Family
ID=69937113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921081937.0U Active CN210218082U (en) | 2019-07-11 | 2019-07-11 | High-wear-resistance plunger sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218082U (en) |
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2019
- 2019-07-11 CN CN201921081937.0U patent/CN210218082U/en active Active
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