Axial positioning device for motor shaft

Abstract

The utility model relates to the technical field of motor shaft positioning, and provides a motor shaft axial positioning device which comprises a support body and a hydraulic oil cylinder clamping block arranged on the support body, and the hydraulic oil cylinder clamping block is used for clamping a motor shaft. A supporting mechanism for supporting the motor shaft is arranged on the bottom surface of the motor shaft, and the supporting mechanism is arranged on one side of a shaft shoulder of the motor shaft; a positioning mechanism is further arranged on the bottom face of the motor shaft and arranged on the other side of a shaft shoulder of the motor shaft, and the supporting mechanism and the positioning mechanism are attached to the two side faces of the shaft shoulder respectively. Limiting supporting is conducted on the two sides of the shaft shoulder of the motor shaft, so that it can be guaranteed that when acting force is applied to drilling of the two ends of the motor shaft, the motor shaft cannot move in the axial direction, the drilling depth and the chamfering size of the ends of the motor shaft are kept stable, and the machining quality of the motor shaft is better.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft positioning technology, and more specifically, to a motor shaft axial positioning device. Background Technology

[0002] Axial positioning of the motor shaft is a crucial step in ensuring the normal operation and stable performance of the motor. For example, when machining the two end holes of the SEP201 motor shaft, in order to prevent axial movement of the motor shaft and ensure axial alignment for more reliable machining of the end holes, the existing technology generally relies on hydraulic clamping force, i.e., hydraulic cylinder clamping blocks, to limit the motor shaft. However, when drilling the large end, the motor shaft can still slip axially, and the drilling depth, chamfer size, etc., will change, making the machining quality of the two end holes of the motor shaft unstable. Utility Model Content

[0003] The purpose of this utility model is to provide an axial positioning device for a motor shaft. By providing limiting support on both sides of the motor shaft shoulder, it can ensure that the motor shaft will not move axially when a force is applied to the holes at both ends of the motor shaft, thus keeping the drilling depth and chamfer size of the motor shaft ends stable and improving the machining quality of the motor shaft.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] It should be noted that in this solution, the location where the motor shaft shows a clear step from thin to thick from one end to the other is called the shaft shoulder;

[0006] An axial positioning device for a motor shaft includes a support body and a hydraulic cylinder clamping block disposed on the support body, the hydraulic cylinder clamping block being used to clamp the motor shaft;

[0007] The bottom surface of the motor shaft is provided with a support mechanism for supporting the motor shaft, and the support mechanism is located on one side of the shaft shoulder of the motor shaft;

[0008] The bottom surface of the motor shaft is also provided with a positioning mechanism, which is located on the other side of the shaft shoulder of the motor shaft, and the support mechanism and the positioning mechanism are respectively attached to the two sides of the shaft shoulder.

[0009] Furthermore, the support mechanism and the hydraulic cylinder clamping block are symmetrically arranged on the upper and lower sides of the central axis of the motor shaft.

[0010] Furthermore, the support mechanism includes a positioning plate connected to the bracket body and a support plate connected to the positioning plate, wherein the positioning plate and the support plate are connected in a T-shape; the top surface of the support plate is provided with a plurality of slots for placing the motor shaft.

[0011] Furthermore, the slot is V-shaped or U-shaped.

[0012] Furthermore, the positioning plate has multiple positioning holes, and the positioning plate is fixed to the bracket body by fixing bolts passing through the positioning holes.

[0013] Furthermore, the positioning mechanism has an L-shaped structure, including an integrally formed long support arm and a short support arm; the end of the long support arm abuts against one side of the shaft shoulder and fits against the side of the shaft shoulder; the end of the short support arm abuts against the side of the support plate; and a fastening mechanism is provided between the support mechanism and the positioning mechanism.

[0014] Furthermore, the fastening mechanism includes a positioning groove on the side of the long support arm and a plurality of limiting holes on the side of the support plate, wherein the plurality of limiting holes are disposed opposite to the positioning groove; a positioning bolt is disposed through the positioning groove and a limiting hole to fasten the support mechanism and the positioning mechanism.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] In use, the motor shaft is placed on one side of the bracket body, and the upper part of the motor shaft is clamped by a hydraulic cylinder clamping block for primary positioning and fixation. Then, a support mechanism is installed on the opposite side of the hydraulic cylinder clamping block, below the motor shaft, to support it. Specifically, in this embodiment, the support mechanism is located on the right side of the shaft shoulder and closely adheres to the side of the shaft shoulder, providing secondary positioning and fixation. This dual clamping and support from the hydraulic cylinder clamping block and the support mechanism results in a stronger clamping force on the motor shaft. Since drilling is required at both ends of the motor shaft, holes are drilled on both sides of the shaft shoulder. To provide limiting support, specifically, in this embodiment, a positioning mechanism is also provided on the left side of the shaft shoulder to limit the shaft shoulder and prevent the motor shaft from sliding to the left when drilling the right end of the motor shaft. Thus, through the dual clamping and supporting effect of the hydraulic cylinder clamping block and support mechanism on the right side of the shaft shoulder, and the limiting effect of the positioning mechanism on the left side of the shaft shoulder, this utility model ensures that the motor shaft will not move axially when a force is applied to the drilling at both ends of the motor shaft. This keeps the drilling depth and chamfer size of the motor shaft ends stable, resulting in better machining quality of the motor shaft. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A top view of the motor shaft axial positioning device provided in an embodiment of this utility model;

[0019] Figure 2 A side view of the long support arm provided in an embodiment of this utility model;

[0020] Figure 3 A top view of the support mechanism provided in an embodiment of this utility model;

[0021] Figure 4 A side view of the support mechanism provided in an embodiment of this utility model.

[0022] Icons: 1-Bracket body, 2-Hydraulic cylinder clamping block, 3-Motor shaft, 4-Support mechanism, 41-Support plate, 411-Limit hole, 42-Positioning plate, 421-Positioning hole, 43-Slot, 5-Positioning mechanism, 51-Long support arm, 52-Short support arm, 53-Positioning bolt, 54-Positioning groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Example 1

[0025] It should be noted that in this solution, the location where the motor shaft shows a clear step from thin to thick from one end to the other is called the shaft shoulder;

[0026] An axial positioning device for a motor shaft includes a bracket body 1 and a hydraulic cylinder clamping block 2 disposed on the bracket body 1, wherein the hydraulic cylinder clamping block 2 is used to clamp a motor shaft 3.

[0027] The bottom surface of the motor shaft 3 is provided with a support mechanism 4 for supporting the motor shaft 3, and the support mechanism 4 is located on one side of the shaft shoulder of the motor shaft 3;

[0028] The bottom surface of the motor shaft 3 is also provided with a positioning mechanism 5. The positioning mechanism 5 is located on the other side of the shoulder of the motor shaft 3, and the support mechanism 4 and the positioning mechanism 5 are respectively attached to the two sides of the shoulder.

[0029] Working principle: In use, the motor shaft 3 is placed on one side of the bracket body 1, and the upper part of the motor shaft 3 is clamped by the hydraulic cylinder clamping block 2 to perform primary limiting and fixing of the motor shaft 3; then, a support mechanism 4 is set on the opposite side of the hydraulic cylinder clamping block 2, that is, below the motor shaft 3, to support the motor shaft 3. Specifically, in this embodiment, the support mechanism 4 is set on the right side of the shaft shoulder and closely attached to the side of the shaft shoulder to perform secondary limiting and fixing of the motor shaft 3; in this way, with the double clamping and supporting action of the hydraulic cylinder clamping block 2 and the support mechanism 4, the clamping force on the motor shaft 3 can be stronger.

[0030] Since drilling is required at both ends of the motor shaft 3, limiting supports are provided on both sides of the shaft shoulder. Specifically, in this embodiment, a positioning mechanism 5 is also provided on the left side of the shaft shoulder to limit the shaft shoulder and prevent the motor shaft 3 from sliding to the left when drilling the right end of the motor shaft 3. In this way, through the double clamping and support of the hydraulic cylinder clamping block 2 and the support mechanism 4 on the right side of the shaft shoulder, and the limiting effect of the positioning mechanism 5 on the left side of the shaft shoulder, that is, by providing limiting supports on both sides of the shaft shoulder, it can be ensured that the motor shaft 3 will not move axially when a force is applied to the drilling at both ends of the motor shaft 3, so that the drilling depth and chamfer size of the ends of the motor shaft 3 remain stable, and the processing quality of the motor shaft 3 is better.

[0031] In this embodiment, the support mechanism 4 and the hydraulic cylinder clamping block 2 are symmetrically arranged on the upper and lower sides of the central axis of the motor shaft 3; this makes the clamping force on the motor shaft 3 stronger and more stable under the dual clamping and support of the hydraulic cylinder clamping block 2 and the support mechanism 4.

[0032] In this embodiment, the support mechanism 4 includes a positioning plate 42 connected to the bracket body 1 and a support plate 41 connected to the positioning plate 42. The positioning plate 42 and the support plate 41 are connected in a T-shape. The top surface of the support plate 41 is provided with a plurality of slots 43 for placing the motor shaft 3. This allows the support plate 41 to support the motor shaft 3 more firmly and stably, maintaining the stability of the motor shaft 3 during processing. The slots 43 are used to place the motor shaft 3, making the placement of the motor shaft 3 more stable. Multiple slots 43 can be arranged sequentially and at intervals along the top surface of the support plate 41, so that the motor shaft 3 can be fixed in the slots 43 at the required position according to the fixing requirements.

[0033] In this embodiment, the slot 43 is V-shaped or U-shaped, which fits the arc surface of the motor shaft 3 better and can clamp the motor shaft 3 more securely. In particular, the V-shaped slot 43 can be used to fix motor shafts 3 of different thicknesses, and has a wider range of applications.

[0034] In this embodiment, the positioning plate 42 is provided with a plurality of positioning holes 421. The positioning plate 42 is fixed to the bracket body 1 by fixing bolts passing through the positioning holes 421, thereby making the support plate 41 more stable.

[0035] In this embodiment, the positioning mechanism 5 has an L-shaped structure, including an integrally formed long support arm 51 and a short support arm 52; the end of the long support arm 51 abuts against one side of the shaft shoulder and fits against the side of the shaft shoulder; the end of the short support arm 52 abuts against the side of the support plate 41; and a fastening mechanism is provided between the support mechanism 4 and the positioning mechanism 5; specifically, in this embodiment, the fastening mechanism includes a positioning groove 54 opened on the side of the long support arm 51, and a plurality of limiting holes 411 opened on the side of the support plate 41, the plurality of limiting holes 411 being arranged opposite to the positioning groove 54; a positioning bolt 53 is provided through the positioning groove 54 and a limiting hole 411 to fasten the support mechanism 4 and the positioning mechanism 5.

[0036] In this way, the positioning mechanism 5 is set on the left side of the shoulder of the motor shaft 3. The end of the long support arm 51 abuts against the left side of the shoulder, while the end of the short support arm 52 abuts against the side of the support plate 41. In this way, the positioning mechanism 5 and the support plate 41 can limit the two sides of the shoulder, so that when drilling holes at both ends of the motor shaft 3, the motor shaft 3 can be limited to prevent axial slippage. In addition, a long positioning groove 54 is opened on the side of the long support arm 51. By opening a groove in the middle of the side of the long support arm 51, and setting several limiting holes 411 corresponding to the positioning groove 54 on the side of the support plate 41, the positioning bolt 53 can pass through the positioning groove 54 and the limiting hole 411, and the distance between the positioning bolt 53 and the motor shaft 3, that is, the distance of the fixing point of the positioning bolt 53, can be adjusted, making it more versatile. Alternatively, multiple positioning bolts 53 can be used to pass through different positions of the positioning groove 54 and connect to different limiting holes 411, thereby making the connection between the positioning mechanism 5 and the support mechanism 4 more stable. This allows for bidirectional limiting of the motor shaft 3, ensuring that no slippage occurs when drilling at both ends of the motor shaft 3, and guaranteeing the machining quality of the motor shaft 3.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An axial positioning device for a motor shaft, characterized in that, It includes a bracket body and a hydraulic cylinder clamping block disposed on the bracket body, the hydraulic cylinder clamping block being used to clamp the motor shaft; The bottom surface of the motor shaft is provided with a support mechanism for supporting the motor shaft, and the support mechanism is located on one side of the shoulder of the motor shaft; The bottom surface of the motor shaft is also provided with a positioning mechanism, which is located on the other side of the shaft shoulder of the motor shaft, and the support mechanism and the positioning mechanism are respectively attached to the two sides of the shaft shoulder.

2. The motor shaft axial positioning device according to claim 1, characterized in that, The support mechanism and the hydraulic cylinder clamping block are symmetrically arranged on the upper and lower sides of the central axis of the motor shaft.

3. The motor shaft axial positioning device according to claim 1, characterized in that, The support mechanism includes a positioning plate connected to the bracket body and a support plate connected to the positioning plate. The positioning plate and the support plate are connected in a T-shape. The top surface of the support plate is provided with several slots for placing the motor shaft.

4. The motor shaft axial positioning device according to claim 3, characterized in that, The slot is V-shaped or U-shaped.

5. The motor shaft axial positioning device according to claim 3, characterized in that, The positioning plate has multiple positioning holes, and the positioning plate is fixed to the bracket body by fixing bolts passing through the positioning holes.

6. The motor shaft axial positioning device according to claim 3, characterized in that, The positioning mechanism has an L-shaped structure and includes an integrally formed long support arm and a short support arm; the end of the long support arm abuts against one side of the shaft shoulder and fits against the side of the shaft shoulder; the end of the short support arm abuts against the side of the support plate; and a fastening mechanism is provided between the support mechanism and the positioning mechanism.

7. The motor shaft axial positioning device according to claim 6, characterized in that, The fastening mechanism includes a positioning groove on the side of the long support arm and a plurality of limiting holes on the side of the support plate, wherein the plurality of limiting holes are arranged opposite to the positioning groove; a positioning bolt is provided through the positioning groove and a limiting hole to fasten the support mechanism and the positioning mechanism.

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