CN216741861U - Open type constant power variable plunger pump - Google Patents
Open type constant power variable plunger pump Download PDFInfo
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- CN216741861U CN216741861U CN202123452171.2U CN202123452171U CN216741861U CN 216741861 U CN216741861 U CN 216741861U CN 202123452171 U CN202123452171 U CN 202123452171U CN 216741861 U CN216741861 U CN 216741861U
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Abstract
The utility model discloses an open type constant power variable plunger pump, which comprises a pump body, wherein a driving through groove is formed on the pump body, a driving shaft is rotatably arranged in the driving through groove in a penetrating way, the driving through groove comprises a sealing part and a connecting part, a connecting bearing is arranged at the position of the driving shaft corresponding to the connecting part of the driving through groove, a contact flange is formed at the position of the driving shaft corresponding to the sealing part of the driving through groove, the interference flange is connected with the driving shaft through a smooth connecting surface, a sealing component is arranged in the sealing part and comprises two main frameworks which are respectively arranged at two sides of the interference flange, one end of the main framework is connected with the inner wall of the driving through groove, the other end of the main framework is abutted against the side face connecting surface of the abutting flange, the main framework is bent, the bending radian of the main framework is matched with that of the side face connecting face of the abutting flange, and a sealing lip is further arranged outside the main framework. The sealing structure is simple and reasonable, has better sealing and leakage-proof effects, and improves the reliability of the whole structure.
Description
Technical Field
The utility model relates to the technical field of pump valves, in particular to an open type constant power variable plunger pump.
Background
A constant power variable displacement plunger pump is an important device of a 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 constant-power plunger pump has the advantages of compact structure, high efficiency, convenient flow regulation and the like. Its main application and heavy industrial equipment such as machine of digging, service condition require it to have high reliability, long-life, but current plunger pump sealing effect is not good, in the use, the condition of seepage appears easily, reduces overall structure's result of use and use reliability.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an open type constant power variable plunger pump which is simple and reasonable in structure, has better sealing and leakage-proof effects and improves the reliability of the whole structure.
In order to achieve the purpose, the utility model provides an open type constant power variable plunger pump, which comprises a pump body, wherein a driving through groove is formed on the pump body, a driving shaft is rotatably penetrated in the driving through groove and comprises a sealing part and a connecting part, a connecting bearing is arranged at the position of the driving shaft corresponding to the connecting part of the driving through groove, an interference flange is formed at the position of the driving shaft corresponding to the sealing part of the driving through groove and is connected with the driving shaft through a smooth connecting surface, a sealing component is arranged in the sealing part and comprises two main frameworks, the two main frameworks are respectively arranged at two sides of the interference flange, one end of each main framework is connected with the inner wall of the driving through groove, the other end of each main framework is in interference with the side connecting surface of the interference flange, the main frameworks are bent, and the bending radian of the main frameworks is matched with the bending radian of the side connecting surface of the interference flange, and a sealing lip is arranged outside the main framework.
The beneficial effect who so sets up is: set up like this, set up the drive shaft like this, through the conflict flange, deuterogamy seal assembly, main skeleton laminates with the both sides face of conflict flange mutually in the seal assembly, effectively reduce seal assembly to drive shaft pivoted influence, it is more smooth and easy to make to rotate the input, the reliability that overall structure used has effectively been increased simultaneously, and it is sealed effectual, reduce the possibility of seepage, when the drive shaft stops simultaneously, main skeleton can conflict equally on the conflict flange, form and seal, and form a slope through the conflict flange, can effectively prevent the seepage, improve inclosed possibility.
As a further arrangement of the present invention, a side retaining lip extends from the main frame to the abutment flange.
The beneficial effect who so sets up is: through the side keep off the lip can be further prevent fluid seepage, improve airtight effect for the drive shaft when rotating, have better sealed effect, simple structure simultaneously, excellent in use effect.
As a further arrangement of the utility model, the sealing assembly further comprises a positioning framework, the positioning framework is arranged between the two main frameworks, the positioning framework extends to the two main frameworks respectively to form supporting arms, and the supporting arms are abutted against the main frameworks.
The beneficial effect who so sets up is: the main framework is more stable in position, the deviation is not easy to occur, the sealing reliability is guaranteed, and meanwhile, the structure is simple and the using effect is good.
As a further arrangement of the utility model, the positioning framework extends towards the abutting protrusion, the abutting lip is arranged on the positioning framework, and the abutting lip is attached to the abutting protrusion.
The beneficial effect who so sets up is: further improve sealed effect, reduce the possibility of fluid seepage, simple structure has good result of use simultaneously.
As a further arrangement of the utility model, the main skeleton is elastically arranged.
The beneficial effect who so sets up is: set up like this, effectively improve the anti deformability of main skeleton, guarantee that main skeleton can be abundant conflict on the arch of contradicting, guarantee sealed effect, simple structure does benefit to the realization simultaneously.
Drawings
FIG. 1 is a schematic overall cross-sectional structure of an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1 according to an embodiment of the present invention.
Detailed Description
The embodiment of the open type constant power variable plunger pump of the utility model is shown in fig. 1 to 2: comprises a pump body 1, a driving through groove is formed on the pump body 1, a driving shaft 2 is rotatably penetrated in the driving through groove, the driving through groove comprises a sealing part and a connecting part, the driving shaft 2 is provided with a connecting bearing 3 corresponding to the connecting part of the driving through groove, the driving shaft 2 is provided with an interference flange 21 corresponding to the sealing part of the driving through groove, the interference flange 21 is connected with the driving shaft 2 through a smooth connecting surface, a sealing assembly is arranged in the sealing part, the sealing assembly comprises two main frameworks 31, the two main frameworks 31 are respectively arranged at two sides of the interference flange 21, one end of the main framework 31 is connected with the inner wall of the driving through groove, the other end of the main framework is abutted against the side face connecting surface of the abutting flange 21, the main framework 31 is bent, the bending radian of the main framework 31 is matched with the bending radian of the side surface of the interference flange 21, and a sealing lip is further arranged outside the main framework 31. The beneficial effect who so sets up is: set up like this, set up drive shaft 2 like this, through conflict flange 21, deuterogamy seal assembly, main skeleton 31 laminates with the both sides face of conflict flange 21 among the seal assembly, effectively reduce seal assembly to 2 pivoted influences of drive shaft, make the rotation input more smooth and easy, the reliability that overall structure used has effectively been increased simultaneously, and it is sealed effectual, reduce the possibility of seepage, simultaneously when drive shaft 2 stops, main skeleton 31 can conflict equally on conflict flange 21, form and seal, and form a slope through conflict flange 21, can effectively prevent the seepage, improve inclosed possibility.
As a further provision of the utility model, the main frame 31 has side stop lips extending towards the abutment flange 21. The beneficial effect who so sets up is: through the side keep off the lip can be further prevent fluid seepage, improve airtight effect for drive shaft 2 when rotating, have better sealed effect, simple structure simultaneously, excellent in use effect.
As a further arrangement of the present invention, the sealing assembly further includes a positioning frame 32, the positioning frame 32 is disposed between the two main frames 31, the positioning frame 32 extends to the two main frames 31 to form support arms 33, and the support arms 33 abut against the main frames 31. The beneficial effect who so sets up is: the main framework 31 is more stable in position, not prone to deviation and capable of guaranteeing sealing reliability, and meanwhile the structure is simple and good in using effect.
As a further arrangement of the present invention, the positioning framework 32 extends toward the abutting protrusion, and the positioning framework 32 is provided with an abutting lip which is attached to the abutting protrusion. The beneficial effect who so sets up is: further improve sealed effect, reduce the possibility of fluid seepage, simple structure has good result of use simultaneously.
As a further arrangement of the present invention, the main frame 31 is elastically arranged. The beneficial effect who so sets up is: set up like this, effectively improve main skeleton 31's anti deformability, guarantee that main skeleton 31 can be abundant conflict on the arch of contradicting, guarantee sealed effect, simple structure does benefit to the realization simultaneously.
The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an open constant power variable plunger pump, includes the pump body, be formed with the drive on the pump body and lead to the groove, the drive is led to the inslot and is rotated and to wear to be equipped with drive shaft, its characterized in that: the drive leads to groove and includes sealing and connecting portion, the drive shaft corresponds drive and leads to groove connecting portion position and be provided with the connection bearing, the drive shaft corresponds drive and leads to groove sealing position and is formed with the conflict flange, the conflict flange is connected with the drive shaft through level and smooth connection face, be provided with seal assembly in the sealing, seal assembly includes two main frameworks, and two main frameworks set up respectively in conflict flange both sides, main framework one end is connected with drive through inslot wall, and the other end is connected the face with conflict flange side and is inconsistent, the main framework is buckled and is set up, the radian of buckling of main framework suits with the face radian of buckling of conflict flange side, the main framework still is provided with the seal lip outward.
2. The open constant power variable displacement plunger pump of claim 1, wherein: the main framework is provided with a side retaining lip extending towards the abutting flange.
3. The open constant power variable displacement plunger pump according to claim 1 or 2, wherein: the sealing assembly further comprises a positioning framework, the positioning framework is arranged between the two main frameworks, the positioning framework extends to the two main frameworks respectively to form supporting arms, and the supporting arms are abutted to the main frameworks.
4. The open constant power variable displacement plunger pump of claim 3, wherein: the positioning framework extends towards the conflict protrusion, a conflict lip is arranged on the positioning framework, and the conflict lip is pasted and arranged on the conflict protrusion.
5. The open constant power variable displacement plunger pump of claim 1, wherein: the main framework is elastically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123452171.2U CN216741861U (en) | 2021-12-30 | 2021-12-30 | Open type constant power variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123452171.2U CN216741861U (en) | 2021-12-30 | 2021-12-30 | Open type constant power variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741861U true CN216741861U (en) | 2022-06-14 |
Family
ID=81909727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123452171.2U Active CN216741861U (en) | 2021-12-30 | 2021-12-30 | Open type constant power variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741861U (en) |
-
2021
- 2021-12-30 CN CN202123452171.2U patent/CN216741861U/en active Active
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