Multifunctional high-efficiency motor disassembling device
By designing a multi-functional motor disassembly device, which combines a tension balance beam and a hydraulic cylinder with a limit adjuster, the limitations of tension tools in motor maintenance are solved, enabling rapid disassembly and efficient maintenance of motor components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG SANLONG INSTALLATION & MAINTENANCE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
Existing tension tools have limitations in motor repair, including limited tension range, restricted direction, and poor adaptability to parts of different shapes, leading to damage to motor components and increased repair time.
A multifunctional and efficient motor disassembly device was designed, including a tension balance beam, a hydraulic cylinder, a limit adjuster, and a tension hook. The hydraulic cylinder provides tensioning power, and the device, combined with the limit adjuster and connecting components, can adapt to the disassembly requirements of different motor components.
It enables quick and convenient disassembly of various motor bearings, reduces the number of tools and model selection, improves work efficiency, adapts to complex environments, and reduces the consumption of manpower and material resources.
Smart Images

Figure CN224464566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dismantling devices, and in particular to a multifunctional and efficient motor dismantling device. Background Technology
[0002] In motor maintenance, hydraulic pullers or pullers are frequently used to disassemble components such as bearings, half-couplings, and fans of different sizes, resulting in high usage of pull tools. However, current pull tools have several limitations. Selecting the wrong pull tool at the maintenance site, coupled with improper operation, can easily damage motor components, making it impossible to ensure the normal progress of the maintenance process. Finding and replacing pull tools increases maintenance time and reduces efficiency.
[0003] These limitations may exist when using tension tools during motor repair:
[0004] First, the pulling range is limited. Every pulling tool has its rated pulling range. For disassembling or assembling motor components that exceed this range (such as disassembling heavy-duty bearings of large motors), it may not be able to be completed effectively, and forced operation may damage the tool or motor components.
[0005] Secondly, the direction of pulling force is limited. Some pulling tools can only apply pulling force in a specific direction, while some parts of the motor may require pulling force to be applied at multiple angles to be disassembled or installed smoothly. This makes the tools less flexible in practical applications.
[0006] Third, it has poor adaptability to parts of different shapes. Motor parts come in various shapes, such as round and square. Some pulling tools may not be able to be well fixed on parts with special shapes for pulling operations. For example, it is difficult to find a suitable point of force to apply pulling force to disassemble small motor fan blades with irregular surfaces. Utility Model Content
[0007] The purpose of this invention is to provide a multifunctional and efficient motor disassembly device to solve the above-mentioned problems.
[0008] This utility model achieves the above objectives through the following technical solutions:
[0009] A multi-functional, high-efficiency motor disassembly device includes a tension balance beam for providing top support and a hydraulic cylinder for providing tensile power. The central part of the tension balance beam is connected to the cylinder body of the hydraulic cylinder via a threaded connection. Limit adjusters are slidably connected to both sides of the tension balance beam. Grooves are formed on the tension balance beam to limit the sliding of the limit adjusters. A first connecting component is fixedly connected to the bottom of the limit adjuster. A second connecting component is connected to the bottom of the piston rod of the hydraulic cylinder. The first connecting component and the second connecting component are respectively connected to the motor part and the bearing part. The device also includes a tension hook for connecting the bearing. The tension hook has an F-shaped structure, and the bottom crossbar of the tension hook is engaged with the bearing part.
[0010] Preferably, the first connecting assembly includes a high-strength steel wire rope and a steel wire rope locking device. The upper end of the high-strength steel wire rope is connected to the limit adjuster through the steel wire rope locking device. The bottom of the high-strength steel wire rope is fixed to the tension hook. The tension hook is snapped onto the outside of the outer ring of the motor bearing. The bottom of the piston rod of the hydraulic cylinder presses against the top of the motor shaft. The outer ring of the motor bearing is sleeved on the outside of the motor shaft.
[0011] Preferably, the first connecting assembly includes an externally supported high-strength lead screw, which is connected to the limit adjuster by bolts. The second connecting assembly includes a pull rod and a fixing ring, the fixing ring being fixed to the bottom of the piston rod of the hydraulic cylinder, the pull rod being connected to both sides of the fixing ring, the bottom of the pull rod being fixed to the tension hook, and the tension hook being snapped into the inner side of the inner ring of the motor bearing.
[0012] Preferably, the wire rope locking device is a bolt structure, the wire rope locking device is threadedly connected to the limit adjuster, and the high-strength wire rope is wound and connected to the wire rope locking device.
[0013] Preferably, the limit adjuster and the wire rope locking device are adjusted according to the diameter of the outer ring of the motor bearing, and the high-strength wire rope is set perpendicular to the outer ring of the motor bearing.
[0014] Preferably, the fixed ring is threadedly connected to the piston rod of the hydraulic cylinder, the pull rod is rotatably connected to the fixed ring, the fixed ring has an ear seat formed on it for connecting the pull rod, and the tension hook is threadedly connected to the pull rod.
[0015] Preferably, the limit adjuster has a three-section structure, with the height of the central part of the limit adjuster being greater than the height of the two sides, and the central part of the limit adjuster restricting sliding on the inner side of the tension balance beam.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. Enables quick and convenient disassembly of various motor bearings, reducing the number of tools and model selection, integrating multiple functions into one, improving work efficiency, highlighting the advantages of versatility, and saving manpower and resources.
[0018] 2. It can be adapted to the disassembly of various motor bearings; it can withstand large axial tensile forces while having a certain degree of flexibility, which allows it to be used in various complex environments and equipment, and also has the function of adjusting the length of the lever arm; when repairing motors, it reduces the number of tools and the selection of tensile force models. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of Embodiment 1 of the multifunctional high-efficiency motor disassembly device of this utility model;
[0021] Figure 2 This is a front view of Embodiment 1 of the multifunctional high-efficiency motor disassembly device of this utility model;
[0022] Figure 3 This is a schematic diagram of Embodiment 2 of the multifunctional high-efficiency motor disassembly device of this utility model;
[0023] Figure 4 This is a front view of Embodiment 2 of the multifunctional high-efficiency motor disassembly device of this utility model;
[0024] Figure 5 This is a schematic diagram of the wire rope locking device structure of the multifunctional high-efficiency motor disassembly device described in this utility model.
[0025] The annotations in the attached figures are explained as follows:
[0026] 1. Hydraulic cylinder; 2. Limit adjuster; 3. Tension balance beam; 4. High-strength steel wire rope; 5. Motor bearing outer ring; 6. Motor shaft; 7. Tension hook; 8. Steel wire rope locking device; 21. External force support high-strength screw; 41. Tie rod; 42. Fixing ring; 51. Motor bearing inner ring. Detailed Implementation
[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The present invention will be further described below with reference to the accompanying drawings:
[0030] Example 1
[0031] like Figure 1 , Figure 2 , Figure 5 As shown, the multifunctional and efficient motor disassembly device includes a tension balance beam 3 for providing top support and a hydraulic cylinder 1 for providing tensioning power. The central part of the tension balance beam 3 is connected to the cylinder body of the hydraulic cylinder 1 by a thread. Limit adjusters 2 are slidably connected to both sides of the tension balance beam 3. The tension balance beam 3 has grooves formed on it to limit the sliding of the limit adjusters 2. A first connecting component is fixed to the bottom of the limit adjuster 2. A second connecting component is connected to the bottom of the piston rod of the hydraulic cylinder 1. The first connecting component and the second connecting component are respectively connected to the motor part and the bearing part. It also includes a tension hook 7 for connecting the bearing. The tension hook 7 has an F-shaped structure, and the bottom crossbar of the tension hook 7 is engaged with the bearing part.
[0032] Preferably, the first connecting component includes a high-strength steel wire rope 4 and a steel wire rope locking device 8. The upper end of the high-strength steel wire rope 4 is connected to the limit adjuster 2 through the steel wire rope locking device 8. The bottom of the high-strength steel wire rope 4 is fixedly connected to a tension hook 7. The tension hook 7 is snapped onto the outside of the outer ring 5 of the motor bearing. The bottom of the piston rod of the hydraulic cylinder 1 presses against the top of the motor shaft 6. The outer ring 5 of the motor bearing is sleeved on the outside of the motor shaft 6.
[0033] The wire rope locking device 8 is a bolt structure. The wire rope locking device 8 is connected to the limit adjuster 2 by thread. The high-strength wire rope 4 is wound and connected to the wire rope locking device 8.
[0034] The limit adjuster 2 and the wire rope locking device 8 are adjusted according to the diameter of the outer ring 5 of the motor bearing, and the high-strength wire rope 4 is set perpendicular to the outer ring 5 of the motor bearing.
[0035] The limit adjuster 2 has a three-section structure. The height of the central part of the limit adjuster 2 is greater than the height of the two sides. The central part of the limit adjuster 2 restricts sliding inside the tension balance beam 3.
[0036] Working principle: First, the tension hook 7 is attached to the outside of the outer ring 5 of the motor bearing. The piston rod of the hydraulic cylinder 1 is used to push against the top of the motor shaft 6. According to the size of the outer ring 5 of the motor bearing, the limit adjuster 2 and the wire rope locking device 8 are adjusted so that the high-strength wire rope 4 is perpendicular to the tension hook 7 and the crossbar of the tension hook 7 is attached to the bottom of the outer ring 5 of the motor bearing. The wire rope locking device 8 and the high-strength wire rope 4 are locked. Then, the hydraulic cylinder 1 is started so that the piston rod of the hydraulic cylinder 1 extends and pushes against the top of the motor shaft 6. The hydraulic pressure is used to pull the outer ring 5 of the motor bearing off the motor shaft 6.
[0037] Example 2
[0038] like Figure 3 , Figure 4 As shown, the multifunctional high-efficiency motor disassembly device includes a tension balance beam 3 for top support and a hydraulic cylinder 1 for providing tensioning power. The central part of the tension balance beam 3 is connected to the cylinder body of the hydraulic cylinder 1 via a thread. Limit adjusters 2 are slidably connected to both sides of the tension balance beam 3. Grooves that limit the sliding of the limit adjusters 2 are formed on the tension balance beam 3. A first connecting component is fixed to the bottom of the limit adjuster 2. A second connecting component is connected to the bottom of the piston rod of the hydraulic cylinder 1. The first connecting component and the second connecting component are respectively connected to the motor part and the bearing part. It also includes a tension hook 7 for connecting the bearing. The tension hook 7 has an F-shaped structure, and the bottom crossbar of the tension hook 7 is engaged with the bearing part.
[0039] The first connecting component includes an externally supported high-strength lead screw 21, which is connected to the limit adjuster 2 by bolts. The second connecting component includes a pull rod 41 and a fixing ring 42. The fixing ring 42 is fixed to the bottom of the piston rod of the hydraulic cylinder 1. The pull rod 41 is connected to both sides of the fixing ring 42. The bottom of the pull rod 41 is fixed to a tension hook 7, which is snapped into the inner side of the inner ring 51 of the motor bearing.
[0040] The fixed ring 42 is connected to the piston rod of the hydraulic cylinder 1 by a thread. The pull rod 41 is rotatably connected to the fixed ring 42. The fixed ring 42 has an ear seat formed on it to connect to the pull rod 41. The tension hook 7 is connected to the pull rod 41 by a thread.
[0041] The limit adjuster 2 has a three-section structure. The height of the central part of the limit adjuster 2 is greater than the height of the two sides. The central part of the limit adjuster 2 restricts sliding inside the tension balance beam 3.
[0042] Working principle: The crossbar of the tension hook 7 is locked inside the inner ring 51 of the motor bearing. The positions of the high-strength external force support screw 21 and the limit adjuster 2 are adjusted so that the high-strength external force support screw 21 is perpendicular to the surface of the motor housing. The limit adjuster 2 is fixed. At this time, the hydraulic cylinder 1 is activated to shorten the piston rod, thereby pulling the inner ring 51 of the motor bearing out of the motor.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A multi-functional, high-efficiency motor disassembly device, characterized in that: The device includes a tension balance beam (3) for providing top support and a hydraulic cylinder (1) for providing tensioning power. The center part of the tension balance beam (3) is connected to the cylinder body of the hydraulic cylinder (1) by a thread. Limit adjusters (2) are slidably connected to both sides of the tension balance beam (3). The tension balance beam (3) has grooves formed on it to limit the sliding of the limit adjusters (2). A first connecting component is fixed to the bottom of the limit adjuster (2). A second connecting component is connected to the bottom of the piston rod of the hydraulic cylinder (1). The first connecting component and the second connecting component are respectively connected to the motor part and the bearing part. The device also includes a tension hook (7) for connecting the bearing. The tension hook (7) has an F-shaped structure, and the bottom crossbar of the tension hook (7) is engaged with the bearing part.
2. The multifunctional high-efficiency motor disassembly device according to claim 1, characterized in that: The first connecting component includes a high-strength steel wire rope (4) and a steel wire rope locking device (8). The upper end of the high-strength steel wire rope (4) is connected to the limit adjuster (2) through the steel wire rope locking device (8). The bottom of the high-strength steel wire rope (4) is fixed to the tension hook (7). The tension hook (7) is snapped onto the outside of the outer ring (5) of the motor bearing. The bottom of the piston rod of the hydraulic cylinder (1) presses against the top of the motor shaft (6). The outer ring (5) of the motor bearing is sleeved on the outside of the motor shaft (6).
3. The multifunctional high-efficiency motor disassembly device according to claim 1, characterized in that: The first connecting assembly includes an external force-supporting high-strength lead screw (21), which is connected to the limit adjuster (2) by bolts. The second connecting assembly includes a pull rod (41) and a fixing ring (42). The fixing ring (42) is fixed to the bottom of the piston rod of the hydraulic cylinder (1). The pull rod (41) is connected to both sides of the fixing ring (42). The bottom of the pull rod (41) is fixed to the tension hook (7), which is snapped into the inner side of the inner ring (51) of the motor bearing.
4. The multifunctional high-efficiency motor disassembly device according to claim 2, characterized in that: The wire rope locking device (8) is a bolt structure. The wire rope locking device (8) is connected to the limit adjuster (2) by a thread. The high-strength wire rope (4) is wound and connected to the wire rope locking device (8).
5. The multifunctional high-efficiency motor disassembly device according to claim 4, characterized in that: The limit adjuster (2) and the wire rope locking device (8) are adjusted according to the diameter of the outer ring (5) of the motor bearing, and the high-strength wire rope (4) is set perpendicular to the outer ring (5) of the motor bearing.
6. The multifunctional high-efficiency motor disassembly device according to claim 3, characterized in that: The fixed ring (42) is threadedly connected to the piston rod of the hydraulic cylinder (1), the pull rod (41) is rotatably connected to the fixed ring (42), the fixed ring (42) is formed with an ear seat for connecting the pull rod (41), and the tension hook (7) is threadedly connected to the pull rod (41).
7. The multifunctional high-efficiency motor disassembly device according to claim 1, characterized in that: The limiting adjuster (2) has a three-section structure. The height of the central part of the limiting adjuster (2) is greater than the height of the two sides. The central part of the limiting adjuster (2) restricts sliding on the inner side of the tension balance beam (3).