CN215980515U - Shaft end pump driving structure - Google Patents
Shaft end pump driving structure Download PDFInfo
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- CN215980515U CN215980515U CN202121904290.4U CN202121904290U CN215980515U CN 215980515 U CN215980515 U CN 215980515U CN 202121904290 U CN202121904290 U CN 202121904290U CN 215980515 U CN215980515 U CN 215980515U
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Abstract
The utility model relates to the technical field of speed reducers, in particular to a shaft end pump driving structure; comprises a shaft end pump joint and a rotating shaft joint; the rotating shaft joint is fixedly arranged on the end face of a gear shaft of the speed reducer; the rotating shaft joint is of an axial hollow annular structure; the shaft end pump joint is fixedly arranged on the end surface of an input shaft of the shaft end pump; when the shaft end pump joint is connected with the rotating shaft joint; the shaft end pump joint extends into the annular structure; the rotating shaft joint is provided with a plurality of separation grooves, and the separation grooves separate the annular structure into a plurality of pressing blocks; after the shaft end pump joint extends into the annular structure, the pressing mechanism simultaneously pushes the pressing blocks inwards, and the inner walls of the pressing blocks press the side faces of the shaft end pump joint; the side surface of the shaft end pump joint is provided with a plurality of convex blocks, and each convex block extends into a corresponding separation groove. The utility model aims to provide a shaft end pump driving structure aiming at the defects in the prior art, which can effectively reduce the shaking of a lubricating oil pump in the using process.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a shaft end pump driving structure.
Background
The speed reducer is a main mechanism that plays a role in reducing the rotational speed and increasing the torque in the drive train. The lubricating oil pump is a device for injecting lubricating oil into relevant parts of the speed reducer. As shown in fig. 2, the lubricating oil pump 02 is generally installed at the outer side of the speed reducer 01, and the input shaft of the lubricating oil pump 02 is connected to the gear shaft of the speed reducer 01 through the driving structure 03, so that the gear shaft of the speed reducer 01 drives the input shaft of the lubricating oil pump 02 to rotate for supplying oil.
In the prior art, as shown in fig. 1, the driving structure 03 adopts the following structure: the transition joint 031 is fixedly installed on the input shaft of the lubricating oil pump 02, a concave groove 032 is designed on the end face of the gear shaft of the speed reducer 01, and the transition joint 031 is inserted into the concave groove 032 to complete connection. For simple to operate, the size of transition joint 031 can slightly be less than the size of concave groove 032, consequently leads to easily taking place the skew or rocking in concave groove 032 at working process transition joint 031 to influence the axiality of input shaft and gear shaft, lead to the input shaft shake in the rotation in-process, seriously influence lubricating oil pump 02's working effect and life.
In view of the above problems, the present designer designs a shaft end pump driving structure based on practical experience and professional knowledge that is rich over many years in engineering application of such products and with the application of theory, so as to effectively reduce the vibration generated during the use of the lubricating oil pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a shaft end pump driving structure aiming at the defects in the prior art, and the jitter generated in the use process of a lubricating oil pump is reduced by improving the coaxiality of an input shaft of the lubricating oil pump and a gear shaft of a speed reducer.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the method comprises the following steps: a shaft end pump joint and a rotating shaft joint; the rotating shaft joint is fixedly arranged on the end face of a gear shaft of the speed reducer; the rotating shaft joint is of an axial hollow annular structure;
the shaft end pump joint is fixedly arranged on the end surface of an input shaft of the shaft end pump;
when the shaft end pump joint is connected with the rotating shaft joint; the shaft end pump joint extends into the annular structure;
the rotating shaft joint is provided with a plurality of separating grooves, and the separating grooves separate the annular structure into a plurality of pressing blocks; after the shaft end pump joint extends into the annular structure, the pressing mechanism simultaneously pushes the pressing blocks inwards, and the inner walls of the pressing blocks press the side surfaces of the shaft end pump joint; the side surface of the shaft end pump joint is provided with a plurality of convex blocks, and each convex block extends into one corresponding separation groove.
Further, a plurality of the separation grooves are uniformly arranged in the circumferential direction of the rotary shaft joint.
Furthermore, one end of the separation groove close to the speed reducer is of an arc surface structure.
Further, the projection is arranged at one end of the shaft end pump joint far away from the shaft end pump.
Further, the pressing mechanism is arranged at one end, far away from the speed reducer, of the rotating shaft joint.
Further, the pressing mechanism comprises a locking ring and a locking screw; the locking ring is of an interrupted circular ring structure and is sleeved on the outer side surface of the compression block; the locking screw is inserted into the end face of the discontinuity on one side and is in threaded connection with the end face of the discontinuity on the other side.
Further, the compression mechanism comprises a lock nut; the locking nut is provided with an axial threaded through hole; the locking nut is sleeved on the outer side surface of the pressing block; the outer side surfaces of the plurality of pressing blocks are outward in a divergent shape, and threads are arranged on the outer side surfaces of the pressing blocks; the threaded through hole is engaged with the threads.
Furthermore, the outer side surface of the locking nut is provided with a symmetrical plane structure.
Through the technical scheme of the utility model, the following technical effects can be realized:
the shaft end pump driving structure improves the coaxiality of the shaft end pump joint and the rotating shaft joint through the pressing head which is pressed simultaneously, so that the coaxiality of an input shaft of a lubricating oil pump and a gear shaft of a speed reducer is improved, and the shaking of the lubricating oil pump in the using process can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art structure in the background of the utility model;
FIG. 2 is a schematic representation of the use of an axial end pump drive configuration in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a shaft end pump driving structure in the embodiment of the utility model;
FIG. 4 is a cross-sectional view taken at A of FIG. 3 in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a first embodiment of a shaft end pump driving structure in the embodiment of the utility model;
FIG. 6 is a schematic structural diagram of a second embodiment of a shaft end pump driving structure in the embodiment of the utility model;
fig. 7 is a side sectional view of a second embodiment of an axial end pump drive arrangement in an embodiment of the utility model.
Reference numerals: the shaft end pump joint 1, the convex block 11, the rotating shaft joint 2, the separation groove 21, the pressing block 22, the pressing mechanism 23, the locking ring 231, the locking screw 232 and the locking nut 233.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
A shaft end pump drive structure, as shown in fig. 2 to 7, comprising: a shaft end pump joint 1 and a rotating shaft joint 2; the rotating shaft joint 2 is fixedly arranged on the end face of a gear shaft of the speed reducer; the rotating shaft joint 2 is of an axial hollow annular structure; the shaft end pump joint 1 is fixedly arranged on the end surface of an input shaft of the shaft end pump; when the shaft end pump joint 1 is connected with the rotating shaft joint 2; the shaft end pump connection 1 projects into the annular structure.
The rotating shaft joint 2 is provided with a plurality of separation grooves 21, and the separation grooves 21 separate the annular structure into a plurality of pressing blocks 22; after the shaft end pump joint 1 extends into the annular structure, the pressing mechanism 23 simultaneously pushes the pressing block 22 inwards, and the inner wall of the pressing block 22 presses the side surface of the shaft end pump joint 1; the side surface of the shaft end pump joint 1 is provided with a plurality of convex blocks 11, and each convex block 11 extends into a corresponding separation groove 21.
After the shaft end pump joint 1 and the rotating shaft joint 2 can be independently processed, the shaft end pump joint and the rotating shaft joint are respectively installed on the end surface of an input shaft of a lubricating oil pump and the end surface of a gear shaft of a speed reducer; or can be directly processed and formed on the end surface of the input shaft of the lubricating oil pump and the end surface of the gear shaft of the speed reducer. When the driving structure is installed, the bump 11 is aligned with the separation groove 21, then the shaft end pump joint 1 extends into the pressing block 22, after the axial position is adjusted, the pressing mechanism 23 is used for simultaneously pushing the pressing block 22 inwards, the pressing block 22 deforms inwards to press the shaft end pump joint 1 to complete connection, and the structure is convenient to install and convenient to install or disassemble for a user.
In the pressing process, the plurality of pressing blocks 22 apply forces pointing to the axis direction at a plurality of circumferential positions of the shaft end pump joint 1, so that the shaft end pump joint 1 is aligned with the axis of the rotating shaft joint 2 after being pressed tightly, the coaxiality of the input shaft of the lubricating oil pump and the gear shaft of the speed reducer is improved, and the shaking of the lubricating oil pump in the using process is reduced. After the pressing block 22 is pressed, the distance between the inlet ends of the separation grooves 21 is reduced, and the separation grooves 21 press the protrusions 11, so that the axial movement of the shaft end pump joint 1 is limited. The projection 11 can effectively prevent the shaft end pump connector 1 from slipping in the pressing block 22, thereby improving the reliability of the transmission effect. It should be noted here that the lubricating oil pump is only one use case of the present application, and other shaft end pumps mounted on the speed reducer can also be connected by using the driving structure of the present application.
In consideration of ensuring that each pressing block 22 can be simultaneously compressed inwards, as shown in fig. 3, a plurality of separation grooves 21 are uniformly arranged in the circumferential direction of the rotating shaft joint 2, so that each pressing block 22 has the same shape, that is, the deformation amount of each pressing block 22 is the same when being stressed at the same time, and the inner wall of each pressing block 22 is ensured to simultaneously press the side surface of the shaft end pump joint 1, thereby improving the centering precision of the shaft.
Because the compressing block 22 can deform, stress concentration easily occurs at the shape of sudden change to influence the structural strength of the part, and in view of improving the structural strength of the compressing block 22, as shown in fig. 3, one end of the separation groove 21 close to the speed reducer is of an arc-shaped structure, so that the shape of the bottom of the separation groove 21 is in smooth transition, the stress concentration phenomenon is prevented, and the reliability of the overall strength of the structure is improved.
In consideration of facilitating observation of the depth of the shaft end pump connector 1, as shown in fig. 3, the protrusion 11 is disposed at one end of the shaft end pump connector 1 far from the shaft end pump, so that a user can visually recognize the depth of the shaft end pump connector 1 through the protrusion 11, thereby facilitating adjustment by the user.
In consideration of convenience for pressing, as shown in fig. 3, the pressing mechanism 23 is disposed at an end of the rotating shaft joint 2 away from the speed reducer, where the end is farthest away from the deformation point of the pressing head 22, so as to obtain a largest force arm, thereby reducing the amount of force required to be provided by the pressing mechanism 23, and facilitating the use of a user.
As a first embodiment of the pressing mechanism 23, as shown in fig. 5, the pressing mechanism 23 includes a locking ring 231 and a locking screw 232; the locking ring 231 is of an interrupted circular ring structure, and the locking ring 231 is sleeved on the outer side surface of the pressing block 22; the locking screw 232 is inserted into the end surface of the discontinuity on one side and is in threaded connection with the end surface of the discontinuity on the other side. When the locking screw 232 is screwed in, the cross sections of the locking rings 231 approach each other, and the diameter of the inner wall of the locking ring 231 is gradually reduced, so that the pressing block 22 is pushed to deform inwards to realize pressing.
As a second embodiment of the pressing mechanism 23, as shown in fig. 6 to 7, the pressing mechanism 23 includes a lock nut 233; the lock nut 233 is provided with an axial threaded through hole; the locking nut 233 is sleeved on the outer side face of the pressing block 22; the outer side surfaces of the plurality of pressing blocks 22 are outward in a divergent shape, and threads are arranged on the outer side surfaces of the pressing blocks 22; the threaded through hole is engaged with the thread. During installation, firstly, the locking nut 233 is screwed to one end of the thread shown in fig. 7, then the shaft end pump connector 1 extends into the pressing head 22, the locking nut 233 is screwed into the other end of the thread, and in the screwing process, the outer side face of the pressing head 22 in a divergent shape is inwards extruded by the inner wall of the locking nut 233, so that the pressing block 22 is pushed to deform inwards to realize pressing.
In consideration of facilitating the rotation of the locking nut 233, the outer side surface of the locking nut 233 is provided with a symmetrical plane structure so that the locking nut 233 can be wrenched using a wrench.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A shaft end pump driving structure is characterized by comprising a shaft end pump joint (1) and a rotating shaft joint (2);
the rotating shaft joint (2) is fixedly arranged on the end face of a gear shaft of the speed reducer; the rotating shaft joint (2) is of an axial hollow annular structure;
the shaft end pump joint (1) is fixedly arranged on the end surface of an input shaft of the shaft end pump;
when the shaft end pump joint (1) is connected with the rotating shaft joint (2); the shaft end pump joint (1) extends into the annular structure;
the rotating shaft joint (2) is provided with a plurality of separating grooves (21), and the separating grooves (21) separate the annular structure into a plurality of pressing blocks (22); after the shaft end pump joint (1) extends into the annular structure, a pressing mechanism (23) simultaneously pushes the pressing blocks (22) inwards, and the inner walls of the pressing blocks (22) press the side faces of the shaft end pump joint (1); the side surface of the shaft end pump joint (1) is provided with a plurality of convex blocks (11), and each convex block (11) extends into one corresponding separation groove (21).
2. An axial end pump drive structure as recited in claim 1, characterized in that a plurality of the partition grooves (21) are uniformly provided in the circumferential direction of the rotary shaft joint (2).
3. An axial end pump driving structure as claimed in claim 1, characterized in that one end of the separation groove (21) close to the speed reducer is of a cambered surface structure.
4. An axial end pump drive structure as claimed in claim 1, characterized in that the projection (11) is provided on the end of the axial end pump joint (1) remote from the axial end pump.
5. An axial end pump drive structure according to claim 1, characterized in that the hold-down mechanism (23) is provided at an end of the rotary shaft joint (2) remote from the reducer.
6. Shaft end pump drive structure according to claim 1, characterized in that the hold-down mechanism (23) comprises a locking ring (231) and a locking screw (232); the locking ring (231) is of an interrupted circular ring structure, and the locking ring (231) is sleeved on the outer side surface of the pressing block (22); the locking screw (232) is inserted into the end face of the discontinuity on one side and is in threaded connection with the end face of the discontinuity on the other side.
7. An axial end pump drive structure as recited in claim 1, characterized in that the hold-down mechanism (23) includes a lock nut (233); the locking nut (233) is provided with an axial threaded through hole; the locking nut (233) is sleeved on the outer side face of the pressing block (22); the outer side surfaces of the plurality of pressing blocks (22) are outward in a divergent shape, and threads are arranged on the outer side surfaces of the pressing blocks (22); the threaded through hole is engaged with the threads.
8. Shaft end pump drive according to claim 7, characterized in that the outer side of the locking nut (233) is provided with a symmetrical planar structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904290.4U CN215980515U (en) | 2021-08-13 | 2021-08-13 | Shaft end pump driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904290.4U CN215980515U (en) | 2021-08-13 | 2021-08-13 | Shaft end pump driving structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980515U true CN215980515U (en) | 2022-03-08 |
Family
ID=80580348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121904290.4U Active CN215980515U (en) | 2021-08-13 | 2021-08-13 | Shaft end pump driving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980515U (en) |
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2021
- 2021-08-13 CN CN202121904290.4U patent/CN215980515U/en active Active
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