Portable motor dismounting tool
By utilizing the lever principle and pulley system, a portable motor disassembly and assembly tool was developed to solve the difficulties in handling and aligning motors during the disassembly and assembly of wastewater treatment plants in cigarette factories. This enabled convenient disassembly and assembly of motors and improved operational flexibility and safety.
Patent Information
- Application Number
- CN202423119909.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-17
AI Technical Summary
During the disassembly and assembly of the fine screen motor at the cigarette factory's wastewater treatment plant, the on-site working space was small, making it difficult to move the motor and center it, and large hoisting equipment could not be effectively utilized.
Design a portable motor assembly/disassembly tool that uses a support rod and a support component to form a lever, combined with a pulley and a hook, and inputs power through an adjusting rod to achieve motor position adjustment and fixation, reducing the difficulty of centering.
It enables convenient assembly and disassembly of motors in small spaces, reduces the risks of manual handling, improves operational flexibility and safety, and meets the motor alignment requirements.
Smart Images

Figure CN223493140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disassembly tools, and in particular to a portable motor disassembly and assembly tool. Background Technology
[0002] The cigarette factory's wastewater treatment plant is responsible for treating all the factory's production and domestic wastewater. The fine screen motor stirs and filters the wastewater to remove impurities. Due to the large amount of impurities in the wastewater, the stirring device often gets clogged, requiring the motor to be removed and the stirring device to be cleaned.
[0003] The on-site working space is small, allowing only two maintenance personnel to enter at a time. The lack of hoisting tools makes motor transport difficult; during alignment, the large flange connecting one end of the motor obstructs the view, requiring the shaft to be adjusted to the correct position well in advance. Any deviation in height during alignment results in incomplete motor alignment; furthermore, the easy rotation between the motor shaft and the mixing device shaft exacerbates the difficulty in aligning the motor. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a portable motor assembly / disassembly tool. It utilizes a support rod and a supporting component to form a lever. An adjusting rod connects to one end of the support rod for power input, while the other end forms a slide rail that works with a pulley. The pulley drives the hook and the motor to be assembled / disassembled to move, achieving position adjustment. The height of one side of the slide rail can be adjusted by the movement of the adjusting rod, enabling adjustment and fixation of the centering height to meet the motor's centering requirements. Furthermore, the overall structure is simple, highly portable, and the lever structure makes operation more flexible, reducing the difficulty of motor centering.
[0005] To achieve the above objectives, the following technical solution is adopted:
[0006] A portable motor assembly / disassembly tool includes a support rod, a support member, and an adjusting rod. The support member has a support hole and a fixing hole for fasteners to be fixed to an external structure. The support rod passes through the support hole, and the contact point between the support rod and the support hole forms a fulcrum, making the support rod a lever. The support rod on one side of the support member is fitted with an adjusting rod, and the end of the adjusting rod away from the support member is provided with a fastener to connect to the external structure for inputting power. The support rod on the other side of the support member forms a cantilever and serves as a slide rail. A pulley is slidably fitted on the slide rail, and the pulley is connected to a hook for suspending the motor to input resistance.
[0007] Furthermore, the support hole is a rectangular hole, and there are two fixing holes. The fixing holes and the rectangular holes are distributed in a triangular pattern on the support.
[0008] Furthermore, the cross-section of the support rod is rectangular to fit the support hole, and the fasteners are bolts to fit the fixing hole and the external flange hole.
[0009] Furthermore, the adjusting rod is a lead screw, which passes through an adjusting hole provided on the support rod. A nut is fitted on the lead screw, and the nut abuts against the lead screw to maintain the relative position of the lead screw and the support rod.
[0010] Furthermore, the fastener connected to the adjusting rod is U-shaped, with a groove on the fastener and perforated ear plates formed on both sides of the groove. The perforated ear plates are fitted with screws to connect the fastener to the external structure.
[0011] Furthermore, the pulley's axle is connected to a wheel frame, and the wheel frame is connected to a hook to suspend the hook below the support rod.
[0012] Furthermore, the pulley is a grooved pulley, the groove of which matches the slide rail of the support rod and moves along the axial direction of the support rod.
[0013] Furthermore, the slide is provided with limit pins at both ends, and the pulley moves between the limit pins at both ends of the slide.
[0014] Furthermore, the hook includes a hook and an adjuster. The adjuster includes a sleeve with a threaded hole at the end and an external thread at the shank of the hook. The external thread engages with the threaded hole to adjust the relative position of the hook and the sleeve along the axial direction of the sleeve.
[0015] Furthermore, the hook also includes a hook portion, and the hook portion and the handle portion of the hook are rotatably connected.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are:
[0017] To address the current issue of inconvenient hoisting of fine screen motors in wastewater treatment plants, a lever is formed by the cooperation of a support rod and a support component. An adjusting rod is connected to one end of the support rod to input power, and the other end forms a slide rail that works with a pulley. The pulley drives the hook and the motor to be disassembled to move, achieving position adjustment. By adjusting the movement of the adjusting rod, the height of one side of the slide rail can be adjusted to achieve centering height adjustment and fixation, meeting the centering requirements of the motor. Furthermore, the overall structure is simple, highly portable, and the lever structure makes operation more flexible, reducing the difficulty of motor centering. Attached Figure Description
[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0019] Figure 1 This is a schematic diagram of the portable motor disassembly and assembly tool in an embodiment of this utility model.
[0020] Figure 2 This is a schematic diagram of the pulley hook in an embodiment of the present invention.
[0021] Figure 3 This is a schematic diagram of the flange support component in an embodiment of this utility model.
[0022] Figure 4 This is a schematic diagram of the pulley hook in an embodiment of the present invention.
[0023] In the diagram, 1 is a support rod; 2 is a support component; 3 is a bolt; 4 is a pulley; 5 is an adjuster; 6 is a hook; 7 is a support hole; 8 is a fixing hole; 9 is a lead screw; 10 is a fastener; and 11 is a threaded rod. Detailed Implementation
[0024] In a typical embodiment of this utility model, such as Figures 1-4 As shown, a portable motor disassembly and assembly tool is proposed.
[0025] The motors of the mixing units in the wastewater treatment plant of a cigarette factory need to be frequently disassembled for cleaning. Limited on-site space and the lack of hoisting tools make motor handling and movement difficult. Therefore, this embodiment provides a portable motor disassembly and assembly tool.
[0026] like Figure 1 As shown, the portable motor assembly and disassembly tool mainly consists of three parts: support rod 1, support component 2, and adjustment rod.
[0027] In this design, the support rod 1 passes through the support hole 7 of the support member 2, and the contact position with the support hole 7 forms a fulcrum, making the support rod 1 a lever. Depending on the relative position of the support hole 7 and the support member 2, the support rod 1 can form a lever that requires more effort, a lever that requires less effort, or a lever that balances.
[0028] The support member 2 is provided with a support hole 7 and a fixing hole 8. The support hole 7 is used to pass through the support rod 1, and the fixing hole 8 is used to fix the support member 2 to the external structure with fasteners. In this embodiment, the support member 2 is directly fixed to the external flange, and the fixing position avoids the position of the motor mating flange.
[0029] The adjusting rod is fitted onto the support rod 1 on one side of the support member 2. The end of the adjusting rod away from the support member 2 is provided with a fastener 10, which is used to connect the external structure to provide power input to the lever. The fastener 10 can be installed on the round buckle set outside the sewage pipe. The distance between the support rod 1 and the round buckle can be adjusted according to the actual situation on site, thereby realizing the adjustment of the pitch angle and horizontal swing angle of the support rod 1.
[0030] On the other side of the support member 2, the support rod 1 forms a cantilever and serves as a slide rail. A pulley 4 is slidably fitted on the slide rail, and the pulley 4 is connected to a hook 6 for suspending the motor. The hook 6 is used to suspend the motor. By sliding the pulley 4 on the slide rail, the position of the suspended motor can be easily adjusted, assisting in the assembly and disassembly of the motor.
[0031] Compared to large equipment such as external cranes and hoists, the support rod 1, support member 2, and adjusting rod in this embodiment can be fixed to the flanges and pipeline structure of the sewage treatment plant. The support rod 1, support member 2, and adjusting rod can be assembled and disassembled, improving portability, reducing reliance on large hoisting equipment, and adapting to confined working environments. Utilizing the lever principle and pulley system 4, power can be input through the adjusting rod to adjust the motor position, facilitating the movement and suspension of the motor. This reduces the risk of manual motor handling and improves the safety of the operation process.
[0032] like Figure 3 As shown, the support hole 7 is a rectangular hole, which ensures that the support rod 1 can be stably inserted and used as a fulcrum of the lever, and is not prone to rotation or slippage. There are two fixing holes 8, which are distributed in a triangular pattern with the rectangular hole on the support member 2, which not only ensures the stability of the support member 2, but also provides sufficient flexibility to adapt to different installation requirements.
[0033] In this embodiment, the fastener can be a bolt 3, which works with the fixing hole 8 and the external flange hole to ensure that the support 2 can be firmly fixed to the external structure. The bolt 3 can work with the bolt hole on the flange to fix the support 2 to the flange.
[0034] like Figure 1 As shown, the cross-section of the support rod 1 is rectangular to fit the support hole 7. The support rod 1 can be inserted into the support hole 7 to form a stable fulcrum and prevent the support rod 1 from rotating around the axis, thus ensuring the stability of the support rod 1.
[0035] Combination Figure 1 and Figure 4 The support rod 1 has an adjustment hole for the adjustment rod to pass through. The adjustment rod is in the form of a lead screw 9, which passes through the adjustment hole on the support rod 1. A nut is fitted onto the lead screw 9, and the nut abuts against the lead screw 9 to maintain the relative position of the lead screw 9 and the support rod 1. The relative position of the lead screw 9 and the support rod 1 can be adjusted by rotating the nut, thereby realizing the torque adjustment of the lever.
[0036] like Figure 4 As shown, the fastener 10 is U-shaped and has a groove and a perforated lug. The groove is used to connect to external structures, such as a round buckle fixed to a pipe, and the perforated lug works with the screw 11 to fix the fastener 10. During connection, the screw 11 can pass through the round buckle on the pipe.
[0037] like Figure 2 As shown, pulley 4 adopts a grooved wheel structure. The groove of the grooved wheel matches the slide of the support rod 1 to ensure that pulley 4 can move stably along the axial direction of the support rod 1.
[0038] The wheel frame connects the pulley 4 and the hook 6, suspending the hook 6 below the support rod 1. A slide is formed on one side of the support rod 1 for the pulley 4 to move. Limiting pins are provided at both ends of the slide to restrict the range of movement of the pulley 4, prevent the pulley 4 from detaching from the support rod 1, and ensure safety.
[0039] The hook 6 includes a hook and a handle. The hook is used to suspend the motor, and the handle is provided with external threads for engaging with the sleeve of the adjuster 5.
[0040] The adjuster 5 includes a sleeve with a threaded hole at one end. The threaded hole at one end of the sleeve can be threadedly engaged with the end of the rod extending from the end of the wheel frame, and the threaded hole at the other end can be engaged with the external thread of the hook 6 handle. When the sleeve rotates relative to the hook 6 handle, the threaded engagement can increase or decrease the distance between the wheel frame and the hook 6, thereby allowing adjustment of the relative position of the hook 6 and the sleeve along the sleeve axis to precisely adjust the height position of the motor.
[0041] The hook and handle of hook 6 are connected by a rotatable joint, allowing the hook to rotate freely within a certain range, which can adjust the orientation of the motor and facilitate the hanging and disassembly of the motor.
[0042] The support component 2 is secured by rectangular support holes 7, triangularly distributed fixing holes 8, and bolts 3, ensuring both stability and flexibility to adapt to different installation requirements. The lead screw 9 and nut allow for adjustment of the relative position of the adjusting rod and support rod 1, enabling lever torque adjustment and improving operational convenience.
[0043] The design of pulley 4 and the slide rail ensures stable movement of the motor during assembly and disassembly. The limit pin prevents excessive movement of pulley 4, ensuring operational safety. The adjuster 5 and swivel connection design of the hook allow the hook to adapt to motors of different heights, improving the tool's versatility.
[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A portable motor assembly / disassembly tool, characterized in that, The device includes a support rod, a support member, and an adjusting rod. The support member has a support hole and a fixing hole for fasteners to be fixed to an external structure. The support rod passes through the support hole, and the contact point between the support rod and the support hole forms a fulcrum, making the support rod a lever. The support rod on one side of the support member is fitted with an adjusting rod. The end of the adjusting rod away from the support member has a fastener to connect to the external structure for inputting power. The support rod on the other side of the support member forms a cantilever and serves as a slide. The slide is slidably fitted with a pulley, and the pulley is connected to a hook for suspending the motor to input resistance.
2. The portable motor disassembly and assembly tool as described in claim 1, characterized in that, The support hole is a rectangular hole, and there are two fixing holes. The fixing holes and rectangular holes are distributed in a triangular pattern on the support.
3. The portable motor disassembly and assembly tool as described in claim 2, characterized in that, The cross-section of the support rod is rectangular to fit the support hole, and the fasteners are bolts to fit the fixing hole and the external flange hole.
4. The portable motor disassembly and assembly tool as described in claim 1, characterized in that, The adjusting rod is a lead screw, which passes through an adjusting hole on the support rod. A nut is fitted on the lead screw, and the nut abuts against the lead screw to maintain the relative position of the lead screw and the support rod.
5. The portable motor disassembly and assembly tool as described in claim 1 or 4, characterized in that, The fastener connected to the adjusting rod is U-shaped and has a groove. Perforated ear plates are formed on both sides of the groove. The perforated ear plates are fitted with screws to connect the fastener to the external structure.
6. The portable motor disassembly and assembly tool as described in claim 1, characterized in that, The pulley's axle is connected to a wheel frame, and the wheel frame is connected to a hook to suspend the hook below the support rod.
7. The portable motor disassembly and assembly tool as described in claim 6, characterized in that, The pulley is a grooved pulley, and the groove of the pulley matches the slide rail of the support rod and moves along the axial direction of the support rod.
8. The portable motor disassembly and assembly tool as described in claim 6 or 7, characterized in that, The slide is provided with limit pins at both ends, and the pulley moves between the limit pins at both ends of the slide.
9. The portable motor disassembly and assembly tool as described in claim 1, 6, or 7, characterized in that, The hook includes a hook and an adjuster. The adjuster includes a sleeve with a threaded hole at the end and an external thread at the shank of the hook. The external thread engages with the threaded hole to adjust the relative position of the hook and the sleeve along the axial direction of the sleeve.
10. The portable motor disassembly and assembly tool as described in claim 9, characterized in that, The hook also includes a hook portion, and the hook portion and the handle portion are rotatably connected.