Motor end cover dismounting tool

Abstract

The utility model relates to the field of tools for motors, in particular to a disassembling tool for a motor end cover. The utility model provides a motor end cover dismounting tool, the front end of the dismounting tool is a butt joint end used for being in butt joint with a process hole in a motor end cover, the rear end of the dismounting tool is a stress end used for being in butt joint with a dismounting tool, and the stress end is driven by the dismounting tool to rotate to drive the butt joint end to rotate around the axis together. A user can unscrew the motor end cover from the motor shell in a labor-saving mode through the disassembling tool, and the peripheral side of the end cover is not prone to deformation.

Description

Technical Field

[0001] The utility model relates to the field of tooling for motors, in particular to a tooling for disassembling a motor end cover. Background Art

[0002] Conventional rotating electrical machine 1 Figure 1 , including a hollow shell 11, the hollow part of the shell 11 passes through the front end face of the shell. An end cover 12 is threadedly connected to the front end face of the shell 11, and a plurality of process holes 121 (some are used as positioning holes, and some are used as mounting holes) are opened on the front side wall of the end cover 12. A rotating shaft 13 is installed in the shell 11 in a front and rear horizontal manner. The front end of the rotating shaft 13 passes through the center of the end cover 12 from the front end face of the shell 11 and extends to the outside of the shell 11. A bearing (not shown in the figure) is sleeved on the outside of the rotating shaft 13. The bearing is hidden inside the front end of the shell 11 and is protected and shielded by the end cover 12. After the rotating motor 1 has been used for a period of time, the bearing is prone to wear. If the user wants to replace the bearing, he needs to unscrew the end cover 12 to expose the hidden bearing. However, the end cap 12 is usually screwed onto the housing 11 at a relatively tight degree to achieve the effect of protection and sealing. In addition, after the rotating motor 1 has been used for a period of time, dust is easily accumulated at the thread between the end cap 12 and the housing 11, which increases the friction between the end cap 12 and the housing 11, making it difficult for the user to unscrew the end cap 12 from the housing 11 by hand. For this reason, the user needs to use a large wrench to clamp the side of the end cap 12, and then spend a lot of effort (sometimes even multiple people need to work together) to unscrew the end cap 12 from the housing 11. In addition, after unscrewing the end cap 12 with a large wrench for many times, the side of the end cap 12 is easily deformed due to the repeated clamping of the large wrench, affecting the installation and protection effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a motor end cover disassembly tool, by which the user can unscrew the motor end cover from the motor housing with relatively less effort and the peripheral side of the end cover is not easily deformed.

[0004] In order to solve the above problems, the utility model provides a motor end cover disassembly tool, the front end of the disassembly tool is a docking end for docking with the process hole on the motor end cover, and the rear end is a force-bearing end for docking with the disassembly tool. The force-bearing end is driven by the disassembly tool to rotate around the axis.

[0005] Furthermore, the butting end is detachable, and / or the force-bearing end is detachable.

[0006] Furthermore, the butt joint end includes a butt joint boss extending forward and capable of being inserted into the process hole to achieve butt joint.

[0007] Furthermore, there are a plurality of parallel docking bosses, which can be aligned one by one with the process holes on the end cover.

[0008] Furthermore, the plurality of docking bosses are arranged at intervals around the circumference.

[0009] Furthermore, it comprises a hollow cylindrical body, the mouth of which leads to the front end surface of the cylindrical body, the mouth of which is detachably covered with a docking cover plate, and the docking boss is specifically arranged on the front end surface of the docking cover plate.

[0010] Furthermore, a through hole is opened at the center of the docking cover plate, through which the rotating shaft of the power supply motor is inserted and accommodated.

[0011] Furthermore, the force-bearing end specifically includes a connecting rod extending rearward from the rear end of the cylindrical body, and a docking piece for the disassembly tool to dock and drive to rotate is provided at the rear end of the connecting rod.

[0012] Furthermore, the docking piece is detachably mounted on the rear end of the connecting rod.

[0013] Beneficial effect: When the motor end cover needs to be unscrewed to replace the bearing in the motor, the user can connect the butt end of the disassembly tool to the process hole of the motor end cover, then take out the disassembly tool, and butt-connect and install the disassembly tool to the force-bearing end of the disassembly tool. The force-bearing end of the disassembly tool is driven by the disassembly tool to rotate together with the butt end of the disassembly tool around the axis in the positive direction. The butt end can drive the connected motor end cover to rotate together around the axis in the positive direction, thereby unscrewing the end cover from the motor without the user manually unscrewing it, which is more labor-saving. Since the butt end of the disassembly tool does not need to clamp the side of the end cover, it is not easy to deform the side of the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an existing rotating electrical machine.

[0015] Figure 2 The utility model is a schematic diagram showing the structures of an existing rotating electrical machine and a disassembly tool of the utility model.

[0016] Figure 3 This is an exploded schematic diagram of the disassembly tooling from another perspective.

[0017] Explanation of symbols:

[0018] 1-rotating motor; 11-housing; 12-end cover; 121-process hole; 13-rotating shaft; 2-disassembly tool; 21-cylindrical body; 211-cylinder mouth; 212-groove; 213-connecting rod; 22-docking cover plate; 221-docking boss; 222-bump; 223-through hole; 23-docking piece. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with specific implementation methods.

[0020] Conventional rotating electrical machine 1 Figure 2 , including a hollow shell 11, the hollow part of which passes through the front end face of the shell 11. An end cover 12 is threadedly connected to the front end face of the shell 11, and four process holes 121 are opened on the front side wall of the end cover 12. These process holes 121 are arranged at intervals around the circumference and are used as positioning holes or mounting countersunk holes. A rotating shaft 13 is installed in the shell 11, and the front end of the rotating shaft 13 passes through the center of the end cover 12 from the front end face of the shell 11 and extends to the outside of the shell 11. A bearing (not shown in the figure) is sleeved on the outside of the rotating shaft 13. The bearing is hidden inside the front end of the shell 11 and is protected and shielded by the end cover 12. After the rotating motor 1 has been used for a period of time, the bearing is prone to wear. If the user wants to replace the bearing, the end cover 12 needs to be unscrewed with a disassembly tool 2 to expose the hidden bearing.

[0021] Disassembly tool 2 Figure 3 , comprising a hollow cylindrical body 21, whose barrel opening 211 is forwardly connected to the front end surface of the cylindrical body 21. A docking cover plate 22 is provided at the barrel opening 211, and three convex blocks 222 arranged circumferentially and spaced radially outwardly extend from the circumference of the docking cover plate 22. Three grooves 212 are correspondingly opened at the barrel opening 211. After the three convex blocks 222 are aligned with the three grooves 212 one by one, they are inserted into the three grooves 212 in an interference fit manner, and the docking cover plate 22 can detachably cover the barrel opening 211 of the cylindrical body 21 (see Figure 2 ). The front end surface of the docking cover 22 partially extends forward with four parallel columnar docking bosses 221. The four docking bosses 221 are arranged circumferentially and spaced apart. The diameter of the docking bosses 221 is slightly smaller than the process hole 121. The four docking bosses 221 are inserted into the aligned process holes 121 one by one, and the cylindrical body 21 is docked with the end cover 12. The docking boss 221 is located at the front end of the disassembly tool 2, and serves as the docking end of the disassembly tool 2 for docking with the process hole 121 on the end cover 12 of the motor 1. A through hole 223 is opened at the center of the docking cover 22. In the process of inserting the docking boss 221 into the process hole 121, the front end of the motor 1 shaft 13 extending out of the housing 11 will penetrate into the through hole 223 of the docking cover 22, and extend into the hollow part of the cylindrical body 21 through the through hole 223 for accommodation.

[0022] See Figure 2 and Figure 3, the rear end surface of the cylindrical body 21 partially extends backward to form a connecting rod 213, and the docking piece 23 is detachably mounted on the rear end of the connecting rod 213 in an interference fit manner. When the end cover 12 on the rotating motor 1 needs to be removed and unscrewed, firstly, the four docking bosses 221 of the docking cover plate 22 of the cylindrical body 21 are aligned one by one and inserted into the four process holes 121 of the end cover 12 of the motor 1 as described above, so that the cylindrical body 21 and the end cover 12 of the motor 1 are docked; then an electric / pneumatic driving motor (not shown in the figure) is taken as a disassembly tool, and the driving motor is docked to the docking piece 23 of the cylindrical body 21. After the docking is completed, the driving motor is started to drive the docking piece 23 and the connecting rod 213 to rotate forwardly around the horizontal axis, and the cylindrical body 21 rotates forwardly around the horizontal axis, driving the docking end cover 12 and the motor 1 end cover 12 docked with the docking end cover 12 to rotate forwardly around the horizontal axis until the end cover 12 is unscrewed from the motor 1. The connecting rod 213 and the docking piece 23 are located at the rear end of the disassembly tool 2, and serve as the force-bearing end of the disassembly tool 2 for docking with the disassembly tool. Since the disassembly tool 2 docks the four process holes of the end cover 12 through the docking boss 221 to unscrew the end cover 12 from the motor 1, there is no need to clamp the side of the end cover 12, so it is not easy to deform the side of the end cover.

[0023] In this embodiment, the connecting rod 213 extends backward from the rear end face of the cylindrical body 21, and the docking member 23, when driven by the driving motor, drives the cylindrical body 21 and the docking cover plate 22 installed on the front end face of the cylindrical body 21 to rotate positively around the horizontal axis through the connecting rod 213. In other embodiments, the connecting rod can be changed to extend backward from the rear end face of the docking cover plate 22, pass through the rear end face of the cylindrical body 21 and extend to the rear of the cylindrical body 21. Accordingly, the docking cover plate 22 is changed to no longer be installed on the front end face of the cylindrical body 21 through the protrusion 222 and the groove 212. In this way, the connecting rod and the docking cover plate 22 can rotate relative to the cylindrical body 21 around the horizontal axis together. In the process that the docking member 23 is driven by the driving motor to drive the connecting rod and the docking cover plate 22 to rotate around the horizontal axis together, the user can hold the cylindrical body 21 to keep the disassembly tool 2 stable.

[0024] In this embodiment, the docking cover 22 is detachably mounted on the front end surface of the cylindrical body 21. If the user wants to unscrew the end cover 12 of the motor 1 of different sizes, the user can replace the appropriate docking cover 22 for the cylindrical body 21 according to the position of the process hole 121 of the end cover 12 to be unscrewed; similarly, the docking piece 23 is detachably mounted on the rear end of the connecting rod 213 of the cylindrical body 21, and the user can replace the appropriate docking piece 23 for the rear end of the connecting rod 213 as needed according to the disassembly tool obtained.

[0025] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A motor end cover disassembly tool, characterized in that: The front end of the disassembly tool is a docking end for docking with the process hole on the motor end cover, and the rear end is a force-bearing end for docking with the disassembly tool. The force-bearing end is driven by the disassembly tool to rotate around the axis.

2. The disassembly tool according to claim 1, characterized in that: The butting end is detachable, and / or the force-bearing end is detachable.

3. The disassembly tool as claimed in claim 2, characterized in that: The butt joint end comprises a butt joint boss which extends forward and can be inserted into the process hole to realize butt joint.

4. The disassembly tool as claimed in claim 3, characterized in that: There are a plurality of parallel docking bosses, which can be aligned one by one with the process holes on the end cover.

5. The disassembly tool as claimed in claim 4, characterized in that: The plurality of docking bosses are arranged at intervals around the circumference.

6. The disassembly tool as claimed in claim 4, characterized in that: It comprises a hollow cylindrical body, the mouth of which is connected to the front end surface of the cylindrical body, the mouth of which is detachably covered with a docking cover plate, and the docking boss is specifically arranged on the front end surface of the docking cover plate.

7. The disassembly tool according to claim 6, characterized in that: A through hole is opened at the center of the docking cover plate, and the rotating shaft of the power supply motor is inserted and accommodated.

8. The disassembly tool according to claim 6 or 7, characterized in that: Specifically, the force-bearing end comprises a connecting rod extending backward from the rear end of the cylindrical body, and a docking piece for the disassembly tool to dock and drive to rotate is arranged at the rear end of the connecting rod.

9. The disassembly tool according to claim 8, characterized in that: The docking piece is detachably mounted on the rear end of the connecting rod.

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