Motor rotor hoisting tool

Abstract

The utility model discloses a motor rotor hoisting tool, and belongs to the technical field of motor production and assembly. The guide assembly is connected into the base in an up-down sliding manner; the arm assemblies comprise clamping jaw arms and supporting arms, the upper ends of the clamping jaw arms are rotationally connected with the base, the middles of the clamping jaw arms are rotationally connected with the first ends of the supporting arms, and the second ends of the supporting arms are rotationally connected with the lower ends of the guide assemblies; the lower ends of the clamping jaw arms bear rotors; the guide assembly slides relative to the base, so that the clamping jaw arms of the arm assemblies get close to each other to form a space for bearing the rotor or get away from each other to be separated from the rotor. The opening range of the clamping jaw arms is adjusted by changing the relative positions of the base and the guide assembly; when the rotor needs to be clamped, the rotor enters the space between the clamping jaw arms of each arm assembly, and the lower ends of the clamping jaw arms bear the bottom of the rotor. When clamping is not needed, the opening range of the clamping jaw arms is expanded, and the lower ends of the clamping jaw arms are completely separated from the bottom of the rotor.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production and assembly, in particular to a hoisting tool for a motor rotor. Background Art

[0002] The structure of a motor mainly includes a stator assembly and a rotor assembly. At present, the rotor is generally assembled by a hand-held assembly method. However, due to the strong magnetic attraction of the magnetic steel in the assembly environment, direct assembly is rather difficult. Moreover, during the adsorption process, the rotor is prone to bumping and damage, and there are also potential safety hazards. Existing hoisting tools for motor rotors, such as the hoisting tool for a motor rotor involved in the utility model patent with the application number 202022599045.9, include a hoisting plate, a cross beam, a vertical beam, a connecting sleeve and a locking bolt. The connecting sleeve of the hoisting tool is sleeved on the sleeve at one end of the motor rotor. The locking bolt of the hoisting tool is screwed into the radial threaded hole on the side wall of the connecting sleeve and corresponds to the keyway on the end sleeve of the motor rotor. The cross beam of the hoisting tool is located above the motor rotor and parallel to the axis of the motor rotor. One end of the cross beam is fixedly connected to the connecting sleeve through the vertical beam. The hoisting plate of the hoisting tool is fixed on the cross beam, and a hoisting hole is provided on the hoisting plate. The hoisting plate is arranged directly above the motor rotor. Since the hoisting hole is directly above the center of gravity of the motor rotor, it is convenient to keep the motor rotor in a horizontal state and smoothly insert it into or extract it from the stator. This tool can not only effectively prevent the rotor and the stator coil from being damaged due to bumping during the disassembly and assembly of the motor, but also greatly reduce the labor intensity of workers and improve the operation efficiency. However, during the trial production of new products, there are many types of rotor specifications, and the quantity of each type of rotor is small. When directly using the existing tool, it is necessary to frequently replace locking bolts of different specifications, resulting in low efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a hoisting tool for a motor rotor, which is convenient to use, simple to operate, can grasp rotors of different specifications, has strong versatility, and is especially suitable for the trial production of new motor products.

[0004] The utility model provides the following solutions:

[0005] The utility model describes a hoisting tool for a motor rotor, including:

[0006] A base;

[0007] A guiding component, which is connected to the base in a vertically sliding manner;

[0008] An arm component, provided with several groups. The arm component includes a clamping jaw arm and a support arm. The upper end of the clamping jaw arm is rotatably connected to the base. The middle part of the clamping jaw arm is rotatably connected to the first end of the support arm. The second end of the support arm is rotatably connected to the lower end of the guiding component; the lower end of the clamping jaw arm bears the rotor;

[0009] The guiding component slides relative to the base, so that the clamping arm of several groups of the arm components approach each other to form a space for carrying the rotor or move away from each other to separate from the rotor.

[0010] Preferably, the clamping arm includes:

[0011] An upper clamping arm, the upper end of the upper clamping arm is rotatably connected to the base;

[0012] A lower clamping arm, the upper end of the lower clamping arm is rotatably connected to the lower end of the upper clamping arm, and the lower end of the lower clamping arm extends towards the guiding component to form a protrusion for carrying the rotor;

[0013] The lower end of the upper clamping arm and the upper end of the lower clamping arm are both rotatably connected to the first end of the support arm.

[0014] Preferably, the base includes:

[0015] A sleeve, the sleeve is slidably sleeved on the guiding component;

[0016] A ring, the ring is fixedly sleeved on the sleeve, several mounting blocks are circumferentially distributed on the outer periphery of the ring, and the upper end of the clamping arm is rotatably connected to the mounting block.

[0017] Preferably, the guiding component includes:

[0018] A guiding shaft, the guiding shaft is slidably sleeved in the sleeve, and both the upper and lower ends extend out of the sleeve;

[0019] A support ring, the support ring is sleeved on the lower end of the guiding shaft, and the second end of the support arm is rotatably connected to the support ring;

[0020] A limit block, the limit block is installed at the bottom of the guiding shaft, and the upper end of the limit block abuts against the support ring.

[0021] Preferably, the distance between the protrusion of the lower clamping arm and the bottom of the guiding component in the vertical direction is greater than the height of the rotor.

[0022] Preferably, a limit post is provided on the side surface of the upper end of the guiding component, and the limit post is located above the base.

[0023] Preferably, a lifting ring is provided at the upper end of the guiding component.

[0024] Preferably, the base, the guiding component and the arm component are made of anti-magnetic materials.

[0025] Preferably, there are three groups of the arm components, and the adjacent arm components are spaced 120°.

[0026] The utility model has the following advantages compared with the prior art:

[0027] 1. By changing the relative positions of the base and the guiding assembly, the utility model adjusts the opening range of the jaw arms. When it is necessary to clamp the rotor, the rotor is made to enter between the respective jaw arms of each group of arm assemblies, and then the opening range of the jaw arms is reduced. The lower end of the jaw arms bears the bottom of the rotor. When it is necessary to release the clamping state, the opening range of the jaw arms is enlarged so that the lower end of the jaw arms is completely separated from the bottom of the rotor. It is convenient to use and simple to operate, can clamp rotors of different specifications, is suitable for the trial production of new motor products, improves work efficiency and reduces costs.

[0028] 2. All components of the utility model are made of anti-magnetic materials, which can effectively avoid the adsorption phenomenon during assembly and have higher work efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is a schematic structural diagram of the utility model;

[0031] In the figure:

[0032] 1. Base; 11. Sleeve; 12. Ring; 13. Mounting block; 2. Guiding assembly; 21. Support ring; 22. Limit block; 23. Guide shaft; 3. Arm assembly; 31. Upper jaw arm; 32. Lower jaw arm; 33. Support arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to make the objectives, technical solutions and advantages of this application clearer, the following will further describe this application in detail with reference to the drawings. Obviously, the described embodiments are only some embodiments of this application, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0034] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0035] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the preceding and following associated objects.

[0036] It should be understood that although terms such as first, second, and third may be used to describe in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of this application, the first can also be called the second, and similarly, the second can also be called the first.

[0037] Depending on the context, the words "if", "when" as used herein can be interpreted as "when...", "when...", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0038] It should also be noted that the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or device including the said element.

[0039] It should be particularly noted that symbols and / or numbers existing in the specification, if not marked in the figure description, are not figure reference numerals.

[0040] Embodiment 1

[0041] See Figure 1 As shown, a hoisting tool for a motor rotor provided by an embodiment of this application includes: a base 1;

[0042] A guiding assembly 2, which is slidably connected up and down in the base 1;

[0043] An arm assembly 3, provided with several groups. The arm assembly 3 includes a clamping arm and a support arm 33. The upper end of the clamping arm is rotatably connected to the base 1, the middle part of the clamping arm is rotatably connected to the first end of the support arm 33, and the second end of the support arm 33 is rotatably connected to the lower end of the guiding assembly 2; the lower end of the clamping arm bears the rotor;

[0044] The guiding component 2 slides relative to the base 1, causing the clamping arms of several groups of arm components 3 to approach each other to form a space for carrying the rotor or move away from each other to separate from the rotor.

[0045] When the guiding component 2 slides within the base 1, it drives the second end of the supporting arm 33 to move along with the guiding component 2. Since the second end of the supporting arm 33 is rotatably connected to the guiding component 2, during the movement of the guiding component 2, the angle between the supporting arm 33 and the guiding component 2 changes, and the distance between the two ends of the supporting arm 33 in the horizontal direction changes, thereby pushing the clamping arms outward, causing the clamping arms to move away from each other and separate from the rotor, or pulling the clamping arms inward, causing the clamping arms to approach each other to form a space for carrying the rotor. Taking the process of the guiding component 2 continuously sliding downward relative to the base 1 as an example: the second end of the supporting arm 33 moves downward along with the guiding component 2, the angle between the supporting arm 33 and the guiding component 2 gradually increases, and the distance between the two ends of the supporting arm 33 in the horizontal direction gradually increases, thereby pushing the clamping arm rotatably connected to the first end of the supporting arm 33 to move away from the guiding component 2, expanding the opening range of the clamping arm and separating the clamping arm from the rotor.

[0046] When it is necessary to clamp the rotor, the rotor is inserted between the clamping arms of each group of arm components 3, and the guiding component 2 slides upward to narrow the opening range of the clamping arms. The clamping arms approach each other to form a space for carrying the rotor, and the bottom of the rotor is carried by the lower ends of the clamping arms. When it is necessary to release the clamping state, the guiding component 2 slides downward to expand the opening range of the clamping arms, so that the lower ends of the clamping arms are completely separated from the bottom of the rotor.

[0047] See Figure 1 As shown, the clamping arm includes:

[0048] The upper clamping arm 31, the upper end of the upper clamping arm 31 is rotatably connected to the base 1;

[0049] The lower clamping arm 32, the upper end of the lower clamping arm 32 is rotatably connected to the lower end of the upper clamping arm 31, and the lower end of the lower clamping arm 32 extends toward the guiding component 2 to form a protrusion for carrying the rotor;

[0050] The lower end of the upper clamping arm 31 and the upper end of the lower clamping arm 32 are both rotatably connected to the first end of the supporting arm 33.

[0051] After clamping the rotor, it is necessary to move the rotor to a suitable position. During the movement, the gravity of the rotor itself exerts a downward force on the lower ends of the clamping arms, causing the clamping arms of each arm component 3 to approach each other further. During this process, an impact is caused to the connection between the clamping arm and the supporting arm 33. Therefore, the clamping arm is divided into the upper clamping arm 31 and the lower clamping arm 32 that are rotatably connected, which can effectively eliminate the impact and extend the service life of the tool. The protrusion at the lower end of the lower clamping arm 32 is stepped, and the upper end face can better carry the rotor.

[0052] SeeFigure 1 As shown, the base 1 includes:

[0053] A sleeve 11, which is slidably sleeved on the guiding component 2;

[0054] A ring 12, which is fixedly sleeved on the sleeve 11. A plurality of mounting blocks 13 are circumferentially distributed along the outer periphery of the ring 12, and the upper end of the jaw arm is rotatably connected to the mounting block 13.

[0055] The sleeve 11 is slidably sleeved outside the guiding component 2, ensuring that during the relative sliding process, the guiding component 2 always moves along the axis direction of the sleeve 11, is not easily deviated from the preset direction, and ensures the accuracy when clamping the rotor. A plurality of mounting blocks 13 are evenly distributed on the outer periphery of the ring 12. By setting the mounting blocks 13 at the required positions, it is ensured that each arm component 3 is at the required position. For example, when 3 groups of arm components need to be installed, the adjacent mounting blocks 13 are arranged at intervals of 120° on the ring 12, ensuring that the interval between adjacent arm components 3 is also 120°.

[0056] See Figure 1 As shown, the guiding component 2 includes:

[0057] A guiding shaft 23, which is slidably sleeved inside the sleeve 11, and both the upper and lower ends extend out of the sleeve 11;

[0058] A support ring 21, which is sleeved on the lower end of the guiding shaft 23, and the second end of the support arm 33 is rotatably connected to the support ring 21;

[0059] A limit block 22, which is installed at the bottom of the guiding shaft 23, and the upper end of the limit block 22 abuts against the support ring 21.

[0060] Since the position of the rotational connection is relatively vulnerable to force damage, a support ring 21 is sleeved on the lower end of the guiding shaft 23, and the support ring 21 is rotatably connected to the second end of the support arm 33. When the support ring 21 is damaged, the support ring 21 can be directly replaced, improving the maintenance efficiency. The limit block 22 provides an upward supporting effect for the support ring 21 to ensure that the support ring 21 does not separate from the guiding shaft 23. The guiding shaft 23 should have sufficient length and both ends extend out of the sleeve 11, so as to install the support ring 21 at the lower end of the guiding shaft 23 and move the entire guiding shaft 23 by moving the upper end of the guiding shaft 23.

[0061] See Figure 1 As shown, the distance between the protrusion of the lower jaw arm 32 and the bottom of the guiding component 2 in the vertical direction is greater than the height of the rotor.

[0062] Since the rotor is clamped between several lower jaw arms 32 and the guiding component 2, there needs to be sufficient height between the two to accommodate the rotor. In this embodiment, the lower jaw arm 33 with a longer length is selected.

[0063] See Figure 1 As shown, a limit post is provided on the upper side of the side of the guiding component 2, and the limit post is located above the base 1.

[0064] The limit post restricts the upward movement distance of the base 1 to prevent the movement distance from being too long, which may damage the support arm 33 or cause the connection points at both ends of the support arm 33 to separate.

[0065] See Figure 1 As shown, a lifting ring is provided at the upper end of the guiding component 2.

[0066] The lifting ring is used in cooperation with the overhead crane to move the rotor to the target position.

[0067] See Figure 1 As shown, the base 1, the guiding component 2, and the arm component 3 are made of anti-magnetic materials.

[0068] Since the rotor has magnetism and there is also a strong magnetic suction force in the environment, using anti-magnetic materials can effectively avoid adsorption and complete the assembly work.

[0069] See Figure 1 As shown, there are three groups of arm components 3, and the adjacent arm components 3 are spaced 120°.

[0070] There are three force application points at the bottom of the rotor and they are evenly distributed, so the clamping effect is more stable.

[0071] The working principle of the present utility model is as follows:

[0072] Move this tool above the rotor, adjust the relative distance between the ring 12 and the support ring 21 so that the opening range of the jaw arms is larger than the diameter of the rotor. Move this tool downward so that the rotor enters between the jaw arms. When the bottom of the rotor is higher than the upper surface of the protrusion of the lower jaw arm 32, adjust the relative position between the ring 12 and the support ring 21 so that the opening range of the lower jaw arm 32 is reduced until the bottom edge of the rotor contacts the upper surface of the protrusion of the lower jaw arm 32. Move this tool upward. During this process, under the action of the self-gravity of the rotor, the angle between the upper jaw arm 31 and the lower jaw arm 32 becomes larger, and the opening range of the lower jaw arm 32 is further reduced to achieve stable clamping. After moving to the required position, adjust the relative position between the ring 12 and the support ring 21 so that the opening range of the jaw arms is larger than the diameter of the rotor, and then move this tool upward to separate this tool from the rotor.

[0073] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0074] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A motor rotor lifting tool, characterized in that: include: Base (1); A guide assembly (2), the guide assembly (2) being slidably connected to the base (1) up and down; The arm assembly (3) is provided with a plurality of groups, the arm assembly (3) comprising a clamping arm and a supporting arm (33), the upper end of the clamping arm being rotatably connected to the base (1), the middle part of the clamping arm being rotatably connected to the first end of the supporting arm (33), and the second end of the supporting arm (33) being rotatably connected to the lower end of the guide assembly (2); the lower end of the clamping arm carries a rotor; The guide assembly (2) and the base (1) slide relative to each other, so that the clamping arms of several groups of the arm assemblies (3) are close to each other to form a space for carrying the rotor, or are far away from each other and separated from the rotor.

2. The motor rotor lifting tool according to claim 1, wherein the clamping arm comprises: An upper clamping jaw arm (31), the upper end of the upper clamping jaw arm (31) being rotatably connected to the base (1); A lower clamping jaw arm (32), wherein the upper end of the lower clamping jaw arm (32) is rotatably connected to the lower end of the upper clamping jaw arm (31), and the lower end of the lower clamping jaw arm (32) extends toward the guide assembly (2) to form a protrusion for carrying the rotor; The lower end of the upper clamping jaw arm (31) and the upper end of the lower clamping jaw arm (32) are both rotatably connected to the first end of the support arm (33).

3. The motor rotor lifting tool according to claim 2, characterized in that: The base (1) comprises: A sleeve (11), wherein the sleeve (11) is slidably mounted on the guide assembly (2); A circular ring (12) is fixedly sleeved on the sleeve (11), a plurality of mounting blocks (13) are distributed along the circumference of the outer circumference of the circular ring (12), and the upper end of the clamping claw arm is rotatably connected to the mounting block (13).

4. The motor rotor lifting tool according to claim 3, characterized in that: The guide assembly (2) comprises: A guide shaft (23), wherein the guide shaft (23) is slidably sleeved in the sleeve (11), and both upper and lower ends of the guide shaft (23) extend out of the sleeve (11); A support ring (21), wherein the support ring (21) is sleeved on the lower end of the guide shaft (23), and the second end of the support arm (33) is rotatably connected to the support ring (21); A limit block (22), wherein the limit block (22) is installed at the bottom of the guide shaft (23), and the upper end of the limit block (22) is in contact with the support ring (21).

5. The motor rotor lifting tool according to claim 2, characterized in that: The distance between the protrusion of the lower clamping jaw arm (32) and the bottom of the guide assembly (2) in the vertical direction is greater than the height of the rotor.

6. The motor rotor lifting tool according to claim 1, characterized in that: A limiting column is provided on the side surface of the upper end of the guide assembly (2), and the limiting column is located above the base (1).

7. The motor rotor lifting tool according to claim 1, characterized in that: The upper end of the guide assembly (2) is provided with a lifting ring.

8. The motor rotor lifting tool according to claim 1, characterized in that: The base (1), the guide assembly (2) and the arm assembly (3) are made of anti-magnetic materials.

9. The motor rotor lifting tool according to claim 1, characterized in that: The arm assemblies (3) are provided in three groups, and adjacent arm assemblies (3) are spaced 120 degrees apart.

Images