CN219605487U - Inclined shaft plunger pump - Google Patents
Inclined shaft plunger pump Download PDFInfo
- Publication number
- CN219605487U CN219605487U CN202223581671.0U CN202223581671U CN219605487U CN 219605487 U CN219605487 U CN 219605487U CN 202223581671 U CN202223581671 U CN 202223581671U CN 219605487 U CN219605487 U CN 219605487U
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- Prior art keywords
- oil seal
- plunger pump
- oil
- main shaft
- seal cover
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 95
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides an inclined shaft plunger pump, which comprises a main shaft, a cylinder body and a framework oil seal, wherein one end of the main shaft penetrates out of the cylinder body, and the inclined shaft plunger pump is characterized in that: the main shaft with the cover is equipped with annular oil seal lid between the cylinder body, the oil seal lid is in the main shaft wears out the position of cylinder body, the skeleton oil blanket includes sealing part and cooperation portion, the skeleton oil blanket passes through cooperation portion sets up the oil seal is covered, sealing part with form the oil blanket between the main shaft. The utility model has the beneficial effects that: the inclined shaft plunger pump can conveniently and efficiently disassemble and assemble the framework oil seal; the inclined shaft plunger pump can disassemble and assemble the framework oil seal without damaging the sealing performance of the framework oil seal; the skeleton oil seal of the inclined shaft plunger pump has good sealing effect and can be suitable for different working conditions.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pumps, and particularly relates to an inclined shaft plunger pump.
Background
The inclined shaft plunger pump is an axial plunger pump, adopts the design of optimal oil film thickness with hydrostatic balance, has the advantages of simple structure, small volume, low noise, high efficiency, long service life, self-absorption capacity and the like, and is widely applied to forging and pressing of machine tools, metallurgy, engineering, mines, ships and other mechanical and other hydraulic transmission systems. The inclined shaft plunger pump generally consists of main parts such as a plunger, a main shaft, a central shaft plug, a shell, an oil distribution disc and the like, wherein the center of the shell is generally provided with a central shaft hole, and a plurality of plunger holes and oil holes are uniformly distributed on the shell. The inclined shaft plunger pump needs to be driven by a motor or other power devices, the pump is connected with the power devices by a coupler, the rotating speed driven by the power devices is higher in general, and a certain amount of hydraulic oil exists in a shell of the pump, so that the problem of sealing between a main shaft of the pump and the shell must be considered, otherwise, the hydraulic oil leaks, and environmental pollution and energy consumption loss are caused. The common sealing type of the inclined shaft plunger pump in the current market is skeleton oil seal sealing. The original framework oil seal needs to be taken out when the parts are disassembled and replaced, but the framework oil seal is difficult to disassemble, and the framework oil seal is easily damaged in the disassembling process, so that the sealing function is lost after the framework oil seal is assembled. Therefore, how to efficiently disassemble and assemble the framework oil seal while ensuring that the sealing function is not damaged becomes a technical problem to be solved.
In order to solve the above-mentioned problems, various solutions have been proposed for a long time. For example, chinese patent document CN205207676U discloses a contactless sealing structure of a high-speed shaft of a plunger pump, which collects lubricating oil directly in an oil storage chamber formed by a groove provided at a required sealing position without providing a skeleton oil seal, and finally allows the lubricating oil to flow back to a housing through a backflow groove, thereby effectively controlling the lubricating oil. However, the oil storage chamber and the sealing structure of the scheme are complex in processing and manufacturing process, and different structural designs are required for different working conditions, so that the oil storage chamber and the sealing structure have no wide applicability of a framework oil seal. Therefore, the technical scheme can not solve the technical problems while using the framework oil seal to ensure that the inclined shaft plunger pump is applicable to different working conditions.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the inclined shaft plunger pump, which can be used for efficiently disassembling and assembling the framework oil seal in the inclined shaft plunger pump while ensuring that the sealing performance of the framework oil seal is not damaged.
The technical scheme of the utility model is that the inclined shaft plunger pump comprises a main shaft, a shell and a framework oil seal, wherein one end of the main shaft penetrates out of the shell, and the inclined shaft plunger pump is characterized in that: the main shaft with the cover is equipped with annular oil seal lid between the casing, the oil seal lid is in the main shaft wears out the position of casing, the skeleton oil blanket includes sealing part and cooperation portion, the skeleton oil blanket passes through cooperation portion sets up the oil seal is covered, sealing part with form the oil blanket between the main shaft.
Through adopting above-mentioned technical scheme, set up the oil blanket lid between main shaft and casing, set up the skeleton oil blanket on the oil blanket lid again, make the skeleton oil blanket can be along with oil blanket lid dismouting, improved the dismouting efficiency of skeleton oil blanket and avoided the skeleton oil blanket to lead to damaging because of the dismouting.
Preferably, the bearing is fixedly arranged in the shell and matched with the main shaft, one end of the oil seal cover is adjacent to the bearing, the other end of the oil seal cover is adjacent to the blocking piece, and the blocking piece is matched with the bearing to enable the oil seal cover to be axially fixed.
By adopting the technical scheme, the oil seal cover can be axially fixed, so that the sealing effect of the framework oil seal is improved, and the abrasion of the framework oil seal caused by position deviation is reduced.
Preferably, the blocking piece is an elastic retainer ring for holes, and an annular hole groove matched with the elastic retainer ring for holes is formed in the shell.
Through adopting above-mentioned technical scheme, make the barrier simple structure and easy dismouting to skeleton oil blanket dismouting efficiency has been improved.
Preferably, the blocking piece is an elastic retainer ring for a shaft, and an annular shaft groove matched with the elastic retainer ring for the shaft is formed in the main shaft.
Through adopting above-mentioned technical scheme, make the barrier simple structure and easy dismouting to skeleton oil blanket dismouting efficiency has been improved.
Preferably, the oil seal cover is provided with a second through pipe, the second through pipe penetrates through the oil seal cover, the shell is provided with a first through pipe, the first through pipe penetrates through the shell, one end of the first through pipe is communicated with the second through pipe, and the other end of the first through pipe is provided with an exhaust device.
Through adopting above-mentioned technical scheme, can discharge the gaseous that rubber component thermal expansion produced to can detect the operating condition of oil seal lid and skeleton oil blanket through whether ooze oil.
Preferably, an O-ring is arranged between the bearing and the oil seal cover, and the O-ring is tightly pressed with the bearing, the oil seal cover and the shell.
By adopting the technical scheme, the O-shaped ring seals the gaps among the bearing, the oil sealing cover and the shell, so that the overall sealing effect is improved.
Preferably, an adjusting gasket is arranged between the O-shaped ring and the bearing.
Through adopting above-mentioned technical scheme, let adjustment gasket increase area under force, the O type circle is more locked with sealing position when sealed, is difficult for not hard up, has improved whole sealed effect.
Preferably, the number of the framework oil seals is two, and the framework oil seals are symmetrically arranged on the oil seal cover.
By adopting the technical scheme, the sealing effect is improved, oil leakage caused by damage of a single framework oil seal is avoided, and dust is prevented well.
Preferably, the end face of the oil seal cover, which is close to the outer side, is provided with symmetrically arranged internal threaded holes.
Through adopting above-mentioned technical scheme, external equipment help oil blanket lid dismouting can be connected to the internal thread hole to the dismouting efficiency of skeleton oil blanket has been improved.
Preferably, a chamfer is arranged on the edge of one side of the oil seal cover, which is contacted with the matching part.
By adopting the technical scheme, the framework oil seal is easier to assemble and disassemble from the oil seal cover.
In summary, the present application has the following beneficial technical effects, including but not limited to:
1. the inclined shaft plunger pump can conveniently and efficiently disassemble and assemble the framework oil seal;
2. the inclined shaft plunger pump can disassemble and assemble the framework oil seal without damaging the sealing performance of the framework oil seal;
3. the skeleton oil seal of the inclined shaft plunger pump has good sealing effect and can be suitable for different working conditions.
Drawings
FIG. 1 is a schematic cross-sectional view of one embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a portion I of one embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of an oil seal cover mated with a skeletal oil seal in accordance with one embodiment of the present utility model.
Reference numerals illustrate:
the device comprises a main shaft 1, a housing 2, a pipe I201, an exhaust device 202, a circlip for 3 holes, an oil seal cover 4, a pipe II 401, an internal threaded hole 402, a chamfer 403, a framework oil seal 5, a sealing lip 501, a matching part 502, a 6O-shaped ring, a 7 adjusting gasket and a bearing 8.
Detailed Description
In order to better understand the present solution and make the beneficial technical effects of the present utility model more obvious to those skilled in the art, the present application is further described below with reference to the specific embodiments and the accompanying drawings.
As shown in fig. 1, the present utility model includes a main shaft 1 and a housing 2, one end of the main shaft 1 penetrating out of the housing 2. The main shaft 1 is sleeved with an elastic retainer ring 3 for holes, an oil seal cover 4, two framework oil seals 5, an O-shaped ring 6, an adjusting gasket 7 and a bearing 8 in sequence from the position of the main shaft 1 penetrating out of the shell 2 inwards.
As shown in fig. 2, the circlip 3 for hole is disposed in the snap spring groove on the inner wall of the housing 2, one end face of the oil seal cover 4 is pressed against the circlip 3 for hole, the other end face of the oil seal cover 4 is pressed against the bearing 8 through the O-ring 6 and the adjusting gasket 7, and the circlip 3 for hole and the bearing 8 limit the oil seal cover 4 axially. Wherein, O type circle 6 cover is established in the ring channel that oil blanket lid 4 edge was established, and adjusting pad 7 sets up between O type circle 6 and bearing 8. The O-ring 6 is pressed against the housing 2, the oil seal cover 4 and the bearing 8 directly or via the adjusting washer 7. The bearing 8 is fixed on the inner wall of the shell 2, the bearing 8 is in transition fit with the shell 2, and the bearing 8 and the hole circlip 3 clamp and fix the axial position of the oil seal cover 4. The oil seal cover 4 is provided with a through pipe two 401 penetrating through the annular wall, the shell 2 is provided with a through pipe one 201 penetrating through the shell, one end of the through pipe one 201 is communicated with the through pipe two 401, and the other end of the through pipe one 201 is provided with an exhaust device 202. Two symmetrically arranged internal threaded holes 402 are arranged on the end surface of the oil seal cover 4, which is close to the outer side.
As shown in fig. 3, two framework oil seals 5 are symmetrically sleeved on the oil seal cover 4. The skeleton oil seal 5 includes a seal portion 501 and a mating portion 502. The oil seal cover 4 is symmetrically provided with two annular grooves matched with the matching parts 502, the two skeleton oil seals 5 are respectively sleeved in the two annular grooves through the elastic force of the respective matching parts 502, and the sealing parts 501 of the two skeleton oil seals 5 are respectively in oil seal with the main shaft 1. The edges of both annular grooves are provided with chamfers 403.
The use principle of the embodiment is as follows:
when in operation, the oil seals between the two framework oil seals 5 and the main shaft 1 can be sealed. The O-ring 6 and the adjusting gasket 7 can seal the gap between the oil seal cover 4 and the bearing. The detection device 202 can detect whether the oil seal cover 4 and the two framework oil seals 5 work normally or not through oil outlet conditions.
When the oil seal cover 4 is required to be disassembled, the circlip 3 for the disassembly hole is pressed firstly, then the external equipment is connected through the internal threaded hole 402, the oil seal cover 4 is disassembled in an axial movement mode, and at the moment, the two framework oil seals 5 sleeved on the oil seal cover 4 can be removed simultaneously. The mounting step is the reverse sequence step. If the skeleton oil seal 5 needs to be replaced after the disassembly, the fitting portion 502 is separated from the oil seal cover 4 from the position of the chamfer 403.
The foregoing is only a specific embodiment of the present utility model. The scope of the present utility model is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present utility model should be covered within the scope of the present utility model.
Claims (10)
1. The utility model provides a inclined shaft plunger pump, includes main shaft (1), casing (2) and skeleton oil blanket (5), the one end of main shaft (1) wears out casing (2), its characterized in that: the novel oil seal is characterized in that an annular oil seal cover (4) is sleeved between the main shaft (1) and the shell (2), the oil seal cover (4) is arranged at the position, penetrating out of the shell (2), of the main shaft (1), the framework oil seal (5) comprises a sealing lip (501) and a matching part (502), the framework oil seal (5) is arranged on the oil seal cover (4) through the matching part (502), and an oil seal is formed between the sealing lip (501) and the main shaft (1).
2. A tilt-axis plunger pump according to claim 1, wherein: still include bearing (8), bearing (8) are fixed to be set up in casing (2) and with main shaft (1) cooperation, the one end of oil blanket lid (4) with bearing (8) are adjacent, the other end of oil blanket lid (4) is adjacent with the barrier, the barrier with bearing (8) cooperate can make oil blanket lid (4) axial fixity.
3. A tilt-axis plunger pump according to claim 2, wherein: the blocking piece is an elastic retainer ring (3) for a hole, and an annular hole groove matched with the elastic retainer ring (3) for the hole is formed in the shell (2).
4. A tilt-axis plunger pump according to claim 2, wherein: the blocking piece is an elastic retainer ring for a shaft, and the main shaft (1) is provided with an annular shaft groove matched with the elastic retainer ring for the shaft.
5. A tilt-axis plunger pump according to claim 2, wherein: be equipped with siphunculus two (401) on oil blanket lid (4), siphunculus two (401) link up oil blanket lid (4), be equipped with siphunculus one (201) on casing (2), siphunculus one (201) link up casing (2), one end of siphunculus one (201) with siphunculus two (401) intercommunication, the other end of siphunculus one (201) is equipped with exhaust apparatus (202).
6. A tilt-axis plunger pump according to claim 2, wherein: an O-shaped ring (6) is arranged between the bearing (8) and the oil seal cover (4), and the O-shaped ring (6) is tightly pressed with the bearing (8), the oil seal cover (4) and the shell (2).
7. The tilt-axis plunger pump of claim 6, wherein: an adjusting gasket (7) is arranged between the O-shaped ring (6) and the bearing (8).
8. A tilt-axis plunger pump according to any one of claims 1 to 7, wherein: the number of the framework oil seals (5) is two, and the framework oil seals are symmetrically arranged on the oil seal cover (4).
9. A tilt-axis plunger pump according to any one of claims 1 to 7, wherein: and the end surface of the oil seal cover (4) close to the outer side is provided with symmetrically arranged internal threaded holes (402).
10. A tilt-axis plunger pump according to any one of claims 1 to 7, wherein: and a chamfer (403) is arranged on the edge of one side, which is contacted with the matching part (502), of the oil seal cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223581671.0U CN219605487U (en) | 2022-12-31 | 2022-12-31 | Inclined shaft plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223581671.0U CN219605487U (en) | 2022-12-31 | 2022-12-31 | Inclined shaft plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219605487U true CN219605487U (en) | 2023-08-29 |
Family
ID=87739947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223581671.0U Active CN219605487U (en) | 2022-12-31 | 2022-12-31 | Inclined shaft plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219605487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898806A (en) * | 2022-12-31 | 2023-04-04 | 浙江赛克思液压有限公司 | A kind of oblique axis plunger pump |
-
2022
- 2022-12-31 CN CN202223581671.0U patent/CN219605487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898806A (en) * | 2022-12-31 | 2023-04-04 | 浙江赛克思液压有限公司 | A kind of oblique axis plunger pump |
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| GR01 | Patent grant |