Bearing outer sleeve dismounting device and dismounting method
By designing a bearing jacket removal device including a fixed frame, a circular tube beam, a steel ball, a push screw, a chain and a jack, the problem of difficult removal of the bearing jacket during replacement is solved, and an efficient and simple removal process is achieved. Reduces construction difficulty.
Patent Information
- Application Number
- CN202411542438.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the bearing replacement process of industrial equipment, the bearing jacket is often difficult to remove due to interference fit with the bearing seat and wear deformation, resulting in difficulty in disassembly.
A bearing jacket removal device is designed, including a fixed frame, a circular tube beam, a steel ball, a push screw, a chain and a jack. The removal of the bearing jacket is achieved by tucking the steel ball into the circular tube beam and pushing the steel ball with the push screw, combining the mechanical advantages of the chain and jack.
The device is easy to obtain, is simple to make and has low cost, which significantly improves the removal efficiency of bearing jackets, shortens working time, and reduces construction technology difficulty.
Smart Images
Figure CN119388361A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of bearing disassembly technology, and in particular to a bearing outer sleeve disassembly device and a disassembly method. Background Art
[0002] In the installation and maintenance of industrial equipment, it is common to replace the equipment bearings. Due to the interference fit between the bearing jacket and the bearing seat, the wear and deformation of the bearing seat, etc., disassembly is often difficult. Even after the old bearing inner ring, retainer and rolling elements are removed first, the bearing jacket fixed in the bearing seat is still difficult to remove. Summary of the invention
[0003] In order to solve the above problems existing in the prior art, the present invention provides a bearing sleeve disassembly device and a disassembly method.
[0004] In a first aspect, the present invention provides a bearing sleeve disassembly device, which adopts the following technical solution: The bearing sleeve disassembly device comprises a fixed frame placed on the bearing seat, two clearance holes are provided on the top of the fixed frame, a round tube beam is detachably placed in the bearing sleeve, a plurality of steel balls are movably placed in the round tube beam, pushing screws for pushing the steel balls to both sides are threadedly connected on the round tube beam, chains are respectively connected at both ends of the round tube beam, the two chains are upwardly passed through the corresponding clearance holes, a movable beam is arranged above the fixed frame, the top end of the chain is connected to the movable beam, and a jack is supported between the movable beam and the fixed frame.
[0005] By adopting the above technical solution, the device is easy to obtain materials, simple to manufacture, and low in cost, which improves the removal efficiency of the bearing jacket, significantly shortens the operation time, and reduces the difficulty of construction technology.
[0006] Optionally, an adjusting screw is threadedly connected to the movable crossbeam, the bottom end of the adjusting screw is connected to the top end of the chain through an upper connecting plate, lower connecting plates are fixedly connected to both ends of the round tube crossbeam, and the bottom end of the chain is connected to the lower connecting plate.
[0007] By adopting the above technical solution, the design of the adjusting screw on the moving crossbeam can fine-tune its horizontality and the tension balance of the chain.
[0008] Optionally, the screw-in end of the jackscrew is conical.
[0009] By adopting the above technical solution and the conical design of the push screw and its end, the installation, screwing in and screwing out of the component are simple and convenient.
[0010] In a second aspect, the present invention provides a method for disassembling a bearing sleeve, comprising the following steps: S1. Fill the round tube crossbeam with steel balls. Align the steel balls with the inner concave surface of the bearing sleeve. Keep the threaded hole in the middle of the round tube crossbeam and the lower connecting plate facing upward. Screw the jacking screw into the round tube crossbeam. The jacking screw pushes the steel balls on both sides outward until the two outermost steel balls press against the inner concave surface of the bearing sleeve. S2. Place the fixed frame on the top surface of the bearing seat so that the clearance hole is aligned with the lower connecting plate; S3, connect the two upper connecting plates on the moving crossbeam to the two chains respectively, and then connect the other end of the chain to the lower connecting plate on the round tube crossbeam; S4. Lift the moving beam. When the distance between the moving beam and the fixed frame meets the requirement, place the jack between the moving beam and the fixed frame. S5. Operate the jack to lift the moving beam and drive the chain and bearing sleeve. Change the up and down position of the adjusting screw to fine-tune the horizontality of the moving beam and the tension and balance of the chain until the bearing sleeve is completely moved out of the bearing seat.
[0011] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The device is easy to obtain materials, simple to make, low in cost, improves the removal efficiency of the bearing jacket, significantly shortens the operation time, and reduces the difficulty of construction technology; 2. The design of the adjusting screw on the moving beam allows for fine-tuning of its levelness and chain tension balance; 3. The conical design of the push screw and its end makes the installation, screwing in and out of the component simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram of a bearing sleeve disassembly device according to an embodiment of the present invention.
[0013] Explanation of the reference numerals: 1. bearing seat; 2. bearing sleeve; 3. fixing frame; 30. clearance hole; 4. round tube beam; 40. lower connecting plate; 5. steel ball; 6. thrust screw; 7. chain; 8. movable beam; 80. adjusting screw; 81. upper connecting plate; 9. jack. DETAILED DESCRIPTION
[0014] The following is combined with Figure 1 The present invention is described in further detail.
[0015] The embodiment of the present invention discloses a bearing sleeve disassembly device and a disassembly method. Figure 1 A bearing sleeve 2 is fixed in the bearing seat 1, and the bearing sleeve disassembly device includes a fixed frame 3 placed on the top of the bearing seat 1. The middle part of the fixed frame 3 is flat, and the end is a support foot supported on the bearing seat 1. Two vertically penetrating holes 30 are opened in the middle part of the fixed frame 3.
[0016] Reference Figure 1 A round tube cross beam 4 is detachably placed in the bearing sleeve 2, and multiple steel balls 5 are movably placed in the round tube cross beam 4. The diameter of the steel ball 5 is slightly smaller than the inner diameter of the round tube cross beam 4, and the sum of the diameters of the multiple steel balls 5 is not greater than the length of the round tube cross beam 4; a threaded hole is opened on the top surface of the middle part of the round tube cross beam 4, and a push screw 6 is detachably threadedly installed in the threaded hole, and the bottom end of the push screw 6 is conical to facilitate pushing the steel ball 5 to the side.
[0017] Reference Figure 1 A lower connecting plate 40 is fixedly connected to the top of both ends of the round tube beam 4, and a chain 7 is connected to the lower connecting plate 40, and the chain 7 is slidably inserted into the corresponding clearance hole 30; a movable beam 8 is horizontally arranged above the fixed frame 3, and an adjusting screw 80 is threadedly connected to the positions of the clearance holes 30 at both ends of the movable beam 8, and an upper connecting plate 81 is fixedly connected to the bottom end of the adjusting screw 80, and the top of the chain 7 is connected to the upper connecting plate 81; a jack 9 is detachably placed between the movable beam 8 and the fixed frame 3, and the top end of the jack 9 is supported at the center of the bottom surface of the movable beam 8, and the bottom end of the jack 9 is supported at the center of the top surface of the fixed frame 3.
[0018] The bearing sleeve disassembly method according to the embodiment of the present invention comprises the following steps: S1. Fill the round tube cross beam 4 with steel balls 5. Align the position of the steel balls 5 with the inner concave surface of the bearing sleeve 2. Keep the threaded hole in the middle of the round tube cross beam 4 and the lower connecting plate 40 facing upwards. Screw the push screw 6 into the threaded hole. Move the cone at the end downward to push the steel balls 5 on both sides outward. Finally, make the two outermost steel balls 5 press against the inner concave surface of the bearing sleeve 2. S2, placing the fixing frame 3 on the top surface of the bearing seat 1, so that the clearance hole 30 and the lower connecting plate 40 are aligned vertically; S3, connect the two upper connecting plates 81 on the movable crossbeam 8 to the two chains 7 respectively, and then connect the other end of the chain 7 to the lower connecting plate 40 on the round tube crossbeam 4; S4, lift the moving beam 8, and when the distance between it and the fixed frame 3 meets the requirement, place the jack 9 between the moving beam 8 and the fixed frame 3; S5. Operate the jack 9 to lift up the moving beam 8, and drive the chain 7 and the bearing sleeve 2. Change the up and down positions of the adjusting screw 80 to fine-tune the horizontality of the moving beam 8 and the tension and balance of the chain 7 until the bearing sleeve 2 is completely moved out of the bearing seat 1.
[0019] The outstanding advantage of the device is that it uses as few processed parts or processed parts as possible, and uses a push screw 6 and a row of steel balls 5 to achieve the clamping of the bearing sleeve 2 to meet the requirements of dismantling the bearing sleeve 2; the conical design of the push screw 6 and its end makes the installation, screwing in and out of the component simple and convenient; the shape and size of the steel ball 5 can match the running arc surface of the rolling element of the bearing sleeve 2, which can ensure that the bearing sleeve 2 is evenly stressed, safe and stable, and not easy to be scratched or worn; the connection between the moving beam 8 and the fixed frame 3 adopts a detachable chain 7, which is convenient for the setting and operation of the device, and the design of the adjusting screw 80 on the moving beam 8 can fine-tune its horizontality and the tension balance of the chain 7; the device is easy to obtain materials, simple to make, low in cost, improves the removal efficiency of the bearing sleeve 2, significantly shortens the operation time, and reduces the difficulty of construction technology.
[0020] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A bearing sleeve disassembly device, characterized in that: The invention comprises a fixed frame (3) placed on a bearing seat (1), two clearance holes (30) are provided on the top of the fixed frame (3), a round tube crossbeam (4) is detachably placed in the bearing sleeve (2), a plurality of steel balls (5) are movably placed in the round tube crossbeam (4), a push screw (6) for pushing the steel balls (5) toward both sides is threadedly connected to the round tube crossbeam (4), two ends of the round tube crossbeam (4) are respectively connected to chains (7), two chains (7) are upwardly passed through the corresponding clearance holes (30), a movable crossbeam (8) is arranged above the fixed frame (3), the top end of the chain (7) is connected to the movable crossbeam (8), and a jack (9) is supported between the movable crossbeam (8) and the fixed frame (3).
2. The bearing sleeve disassembly device according to claim 1, characterized in that: The movable cross beam (8) is threadedly connected with an adjusting screw (80), the bottom end of the adjusting screw (80) is connected to the top end of the chain (7) through an upper connecting plate (81), the two ends of the round tube cross beam (4) are fixedly connected with lower connecting plates (40), and the bottom end of the chain (7) is connected to the lower connecting plate (40).
3. The bearing sleeve disassembly device according to claim 2, characterized in that: The screw-in end of the push screw (6) is conical.
4. A method for disassembling a bearing sleeve using a bearing sleeve disassembly device as claimed in claim 3, characterized in that: The following steps are involved: S1. Fill the round tube cross beam (4) with steel balls (5), align the steel balls (5) with the inner concave surface of the bearing sleeve (2), keep the threaded hole in the middle of the round tube cross beam (4) and the lower connecting plate (40) facing upward, screw the push screw (6) into the round tube cross beam (4), and push the steel balls (5) on both sides outwards with the push screw (6) until the two outermost steel balls (5) are pressed against the inner concave surface of the bearing sleeve (2); S2. Place the fixed frame (3) on the top surface of the bearing seat (1) so that the clearance hole (30) and the lower connecting plate (40) are aligned vertically; S3, connecting the two upper connecting plates (81) on the movable crossbeam (8) to the two chains (7) respectively, and then connecting the other end of the chain (7) to the lower connecting plate (40) on the round tube crossbeam (4); S4, lift the moving beam (8), and when the distance between the moving beam (8) and the fixed frame (3) meets the requirement, place the jack (9) between the moving beam (8) and the fixed frame (3); S5. Operate the jack (9) to lift the moving beam (8), and drive the chain (7) and the bearing sleeve (2). By changing the up and down positions of the adjusting screw (80), the horizontality of the moving beam (8) and the tension and balance of the chain (7) can be fine-tuned until the bearing sleeve (2) is completely moved out of the bearing seat (1).
Citation Information
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