Motor stator hoisting tool

Abstract

The utility model discloses a motor stator hoisting tool, which comprises an upper positioning plate, a lower positioning plate, a lower positioning plate and a hoisting connecting mechanism, wherein the upper end of the upper positioning plate is provided with a hoisting connecting mechanism; the lower positioning plate is arranged below the upper positioning plate; the screw vertically penetrates through the upper positioning plate and is rotationally connected with the upper positioning plate, and the lower end of the screw is rotationally connected with the lower positioning plate; the locking nut is arranged above the upper positioning plate and is mounted on the screw rod in a threaded manner; the screw rod coaxially penetrates through the moving block and is in threaded connection with the moving block; the locking blocks are evenly distributed around the screw rod in the circumferential direction and define a circular-truncated-cone-shaped sliding cavity corresponding to the moving blocks, the moving blocks are arranged in the sliding cavity in a vertical sliding mode, the locking blocks are connected with the screw rod in a sliding mode through limiting assemblies, and the limiting assemblies limit the locking blocks to move in the radial direction of the screw rod. The utility model provides a motor stator hoisting tool which is used for fixing a motor stator from the inner wall of the motor stator and preventing the motor stator from being damaged in the hoisting process.

Description

Technical Field

[0001] The utility model relates to the field of motor processing equipment. More specifically, the utility model relates to a hoisting tooling for a motor stator. Background Technique

[0002] The motor stator is an important part of the motor, and its main function is to generate a rotating magnetic field. During the motor assembly process, a hoisting device is required to lift the motor stator and transport it into the motor housing for assembly. Most of the existing hoisting toolings for motor stators adopt a claw form, clamping the outer side of the motor stator through the claws. In order to ensure stability during hoisting, the claws require a large clamping force. However, if the clamping force is too large and the contact surface is limited, the claws may damage the outer wall of the motor stator, and even for some thinner motor stators, it may cause deformation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hoisting tooling for a motor stator, which fixes the motor stator from the inner wall of the motor stator to avoid damage to the motor stator during the hoisting process.

[0004] The technical solution for the utility model to solve the above technical problems is as follows: A hoisting tooling for a motor stator, comprising:

[0005] An upper positioning plate, with a hoisting connection mechanism provided at its upper end;

[0006] A lower positioning plate, which is arranged below the upper positioning plate;

[0007] A screw rod, which vertically penetrates the upper positioning plate and is rotatably connected thereto, and its lower end is rotatably connected to the lower positioning plate;

[0008] A locking nut, which is arranged above the upper positioning plate and is threadedly installed on the screw rod;

[0009] A frustum-shaped moving block, the screw rod coaxially penetrates the moving block and is threadedly connected thereto;

[0010] Multiple locking blocks, which are circumferentially distributed around the screw rod and enclose a frustum-shaped sliding cavity corresponding to the moving block. The moving block is slidably arranged in the sliding cavity. The locking blocks are slidably connected to the screw rod through a limiting component, and the limiting component restricts the locking blocks from moving radially along the screw rod.

[0011] Further, in the hoisting tooling for a motor stator, the hoisting connection mechanism includes:

[0012] A hoisting plate, with a hook provided at its upper end;

[0013] Multiple lifting ropes are circumferentially and uniformly distributed outside the lifting plate and all extend downward to be connected to the upper positioning plate.

[0014] Furthermore, in the motor stator lifting tooling described above, a placing portion is horizontally extended outward from the outside of the upper positioning plate.

[0015] Furthermore, in the motor stator lifting tooling described above, the limiting assembly includes:

[0016] Two groups of limiting units arranged at intervals up and down, and each limiting unit includes:

[0017] A fixing plate which is rotatably sleeved on the screw rod through a bearing;

[0018] Multiple limiting rods arranged radially along the moving block, at least one limiting groove corresponding to the limiting rods is provided on the locking block, the limiting rods are all slidably arranged in the limiting grooves, the limiting rods extend out of the limiting grooves and are connected to the fixing plate, and an elastic member is further provided in the limiting grooves, and two ends of the elastic member are respectively connected to the inner wall of the limiting groove and the limiting rod.

[0019] Furthermore, in the motor stator lifting tooling described above, the moving block is in a frustum shape with a larger upper part and a smaller lower part.

[0020] Furthermore, in the motor stator lifting tooling described above, a rotating bracket is provided on the locking nut.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The motor stator lifting tooling of the present utility model has a simple structure and is convenient to operate. It can quickly make multiple locking blocks abut against the inner wall of the motor stator, thereby connecting and fixing the lifting tooling with the motor stator. The inner wall of the motor stator is in uniform contact with the outer side walls of the multiple locking blocks, with a large contact area, and the motor stator will not be damaged during the lifting process.

[0023] Other advantages, objectives and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings

[0024] Figure 1 It is a structural schematic diagram of the motor stator lifting tooling described in the present utility model;

[0025] Figure 2 It is a structural schematic diagram of the motor stator lifting tooling described in the present utility model. Detailed Embodiments

[0026] The following further elaborates on the present utility model in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the specification.

[0027] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] Figure 1 - Figure 2 A motor stator hoisting tooling provided for an embodiment of the present utility model includes:

[0029] An upper positioning plate 1, with a lifting connection mechanism provided at its upper end; the connection mechanism includes: a lifting plate 7, with a hook 8 provided at its upper end; a plurality of lifting ropes 9, which are circumferentially evenly distributed outside the lifting plate 7 and all extend downward to be connected to the upper positioning plate 1. During hoisting, it is connected to the hoisting equipment through the hook 8, and the multiple lifting ropes are evenly distributed to ensure that the lifting plate 7 is evenly stressed during hoisting and ensure the stability of the hoisting tooling; a placing portion extends horizontally outward from the outside of the upper positioning plate 1;

[0030] A lower positioning plate 2, which is arranged below the upper positioning plate 1;

[0031] A screw rod 3, which vertically penetrates the upper positioning plate 1 and is rotatably connected thereto, and its lower end is rotatably connected to the lower positioning plate 2;

[0032] A locking nut 4, which is arranged above the upper positioning plate 1 and is threadedly installed on the screw rod 3;

[0033] A frustum-shaped moving block 5, with a threaded through hole vertically provided in the middle thereof, and the screw rod 3 coaxially penetrates the threaded through hole, so that the moving block 5 is threadedly connected to the screw rod 3;

[0034] A plurality of locking blocks 6, which are circumferentially evenly distributed around the screw rod 3 and enclose a frustum-shaped sliding cavity corresponding to the moving block 5. The moving block 5 is slidably arranged up and down in the sliding cavity. The locking block 6 is slidably connected to the screw rod 3 through a limiting component, and the limiting component restricts the locking block 6 from moving radially along the screw rod 3. An elastic layer can be provided on the outside of the locking block 6 to avoid damaging the inner wall of the stator by the locking block 6.

[0035] In this embodiment, the hoisting tooling is placed inside the motor stator 14 to be hoisted. At this time, it is very difficult to coaxialize the rotating shaft with the motor stator 14. The hoisting tooling is placed on the upper end of the motor stator 14 through the placing part. There is a gap between the locking nut 4 and the upper positioning plate 1 at this time. A rotating handle can be arranged at the upper end of the rotating shaft, and then the rotating handle is rotated. Through the rotation of the rotating shaft, the moving block 5 is driven to move up and down. As shown in Figure 1 shown, it is the limit position where the moving block 5 moves upward. As shown in Figure 2 shown, it is the limit position where the moving block 5 moves downward. During the movement of the moving block 5, since the moving block 5 is frustum-shaped, the space between multiple locking blocks 6 encloses a frustum-shaped sliding cavity corresponding to the moving block 5, and the locking blocks 6 are limited to only move horizontally along the radial direction of the screw rod 3 through the limiting component. During the up and down movement of the moving block 5, multiple locking blocks 6 will also approach or move away from each other. As shown in Figure 1 - Figure 2 shown, the moving block 5 is frustum-shaped with a larger upper part and a smaller lower part. Then, during the descent of the moving block 5, it will push multiple locking blocks 6 outwards, causing multiple locking blocks 6 to approach the inner wall of the motor stator 14 outwards until the screw rod 3 cannot be tightened any further. At this time, the locking nut 4 is tightened downward until it abuts against the upper positioning plate 1 to fix the screw rod 3. At this time, the locking block 6 abuts against the inner wall of the motor stator 14, and finally the hoisting tooling and the motor stator 14 are fixed. When it is necessary to remove the hoisting tooling from the motor stator 14, only need to loosen the locking nut 4 upward and then rotate the screw rod 3 in the reverse direction to make the moving block 5 move upward.

[0036] Preferably, as another embodiment of the present invention, the limiting component includes:

[0037] Two groups of limiting units arranged at intervals up and down. The limiting unit includes:

[0038] A fixing plate 10, which is rotatably sleeved on the screw rod 3 through a bearing;

[0039] Multiple limiting rods 11 arranged along the radial direction of the moving block 5. At least one limiting groove corresponding to the limiting rod 11 is provided on the locking block 6. The limiting rod 11 is slidably arranged in the limiting groove, and the limiting rod 11 extends out of the limiting groove and is connected to the fixing plate 10. An elastic member 12 is also arranged in the limiting groove, and the two ends of the elastic member 12 are respectively connected to the inner wall of the limiting groove and the limiting rod 11.

[0040] In this embodiment, the limiting rod 11 is arranged radially along the moving block 5. During the movement of the moving block 5, the movement trajectory of the locking block 6 is limited by the limiting rod 11, so that it can only move horizontally radially along the moving block 5. At the same time, an elastic member 12 is arranged in the limiting groove. When the moving block 5 applies a force to the locking block 6 to make it move outward, the elastic member 12 is stretched. After the moving block 5 cancels the force applied to the locking block 6, the elastic member 12 returns to its original state and drives the locking block 6 to move inward and away from the motor stator 14.

[0041] Preferably, as another embodiment of the present invention, a rotating bracket 13 is provided on the locking nut 4.

[0042] In this embodiment, in order to facilitate the rotation of the locking nut 4, a rotating bracket 13 is provided on the locking nut 4, and the locking nut 4 is rotated by rotating the rotating bracket 13.

[0043] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the embodiments shown and described here.

Claims

1. A motor stator hoisting tool, characterized in that: include: An upper positioning plate (1) having a lifting connection mechanism disposed at its upper end; A lower positioning plate (2), which is arranged below the upper positioning plate (1); A screw rod (3) vertically penetrates the upper positioning plate (1) and is rotatably connected thereto, and a lower end of the screw rod is rotatably connected to the lower positioning plate (2); A locking nut (4), which is arranged above the upper positioning plate (1) and is threadedly mounted on the screw rod (3); A truncated cone-shaped moving block (5), wherein the screw rod (3) coaxially passes through the moving block (5) and is threadedly connected thereto; A plurality of locking blocks (6) are evenly distributed around the screw rod (3) along the circumferential direction and form a truncated cone-shaped sliding cavity corresponding to the moving block (5). The moving block (5) is slidably arranged in the sliding cavity. The locking block (6) is slidably connected to the screw rod (3) through a limiting assembly. The limiting assembly limits the radial movement of the locking block (6) along the screw rod (3).

2. The motor stator hoisting tool as claimed in claim 1, characterized in that: The lifting connection mechanism comprises: A lifting plate (7) having a lifting hook (8) at its upper end; A plurality of lifting ropes (9) are evenly distributed along the circumferential direction on the outside of the lifting plate (7) and extend downward to be connected to the upper positioning plate (1).

3. The motor stator hoisting tool as claimed in claim 1, characterized in that: The outer side of the upper positioning plate (1) extends outward horizontally to form a shelf portion.

4. The motor stator hoisting tool as claimed in claim 1, characterized in that: The limiting component comprises: Two groups of limit units are arranged at intervals in an upper and lower direction, and the limit units include: A fixed plate (10) rotatably sleeved on the screw rod (3) via a bearing; A plurality of limit rods (11) are radially arranged along the movable block (5), the locking block (6) is provided with at least one limit groove corresponding to the limit rod (11), the limit rod (11) is slidably arranged in the limit groove, the limit rod (11) extends out of the limit groove and is connected to the fixed plate (10), an elastic member (12) is also arranged in the limit groove, and two ends of the elastic member (12) are respectively connected to the inner wall of the limit groove and the limit rod (11).

5. The motor stator hoisting tool as claimed in claim 1, characterized in that: The moving block (5) is in the shape of a truncated cone that is larger at the top and smaller at the bottom.

6. The motor stator hoisting tool as claimed in claim 1, characterized in that: A rotating bracket (13) is provided on the locking nut (4).

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