Linear bearing dismounting tool
By designing the combination of support frame, studs and extrusion blocks, rapid disassembly of linear bearings is achieved, solving the problem of disassembly difficulties in the prior art and improving the efficiency of bearing replacement.
Patent Information
- Application Number
- CN202420837717.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In the prior art, the difficulty in disassembly of linear bearings cannot be removed from the bottom due to interference fit and rust. When conventional tools hit, they can only fall off the inner ring and cannot be removed from the outer ring.
A disassembly tool including a support frame, stud, bearing connection assembly and extrusion block is designed, and the sliding connection of the stud and the support frame, lifting of the first nut and the cooperation of the extrusion sleeve with the cylindrical base is achieved. Effective removal of linear bearing housing.
It improves the disassembly efficiency of linear bearings and can quickly remove the bearings from the installation housing, solving the problem of the inability to disassemble the bottom.
Smart Images
Figure CN222328070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a disassembly tool, in particular to a disassembly tool for a linear bearing. Background Art
[0002] The ZJ17 coiling and splicing unit currently uses a 90-type separation wheel. This type of separation wheel has good rigidity and high precision, can improve the stability and reliability of the device operation, and greatly reduce the replacement of wearing parts and the maintenance of the equipment. However, the inner and outer long shafts of the separation wheel and the linear bearing adopt an interference fit, and the outer diameter of the bottom end shaft hole of the bearing installation housing is equal to the inner diameter of the bearing housing, so the bearing cannot be removed from the bottom with conventional tools. In addition, after running on the equipment for a period of time, rust will form on the surface of the bearing, which increases the difficulty of disassembling the linear bearing.
[0003] Currently, when disassembling, a tool is taken from the bottom of the shell to knock the linear bearing. However, since the inner ring of the linear bearing is a plastic body, when the tool is used to knock, only the inner ring of the linear bearing falls off, and the outer ring of the linear bearing (bearing shell) still cannot be taken out. Utility Model Content
[0004] The utility model aims to provide a linear bearing disassembly tool to solve the technical problems in the prior art. The linear bearing can be effectively connected to the linear bearing and quickly removed from the installation housing to improve the replacement efficiency of the bearing.
[0005] The utility model provides a linear bearing disassembly tool, including a support frame, a through hole is opened on the top plate of the support frame, a stud is plugged into and slidably connected with the through hole, a bearing connection assembly is installed at the lower end of the stud, and a first nut is threadedly connected to the upper end of the stud, and the bottom surface of the first nut abuts against the top surface of the support frame.
[0006] In the aforementioned linear bearing disassembly tool, preferably, a cylindrical base is fixedly provided at the bottom end of the stud, and the top surface of the cylindrical base is an upwardly convex conical surface.
[0007] In the aforementioned linear bearing disassembly tool, preferably, the bearing connecting assembly includes an extrusion sleeve, a pressure plate, a second nut and an extrusion block, the extrusion sleeve is sleeved on the stud, the bottom surface of the extrusion sleeve is a downwardly convex conical surface, the taper of the bottom surface of the extrusion sleeve is equal to the taper of the top surface of the cylindrical base, the second nut is fixed at the center position of the top surface of the pressure plate, the second nut is threadedly connected to the stud, the bottom surface of the pressure plate abuts against the top surface of the extrusion sleeve, and a plurality of the extrusion blocks are arranged between the extrusion sleeve and the cylindrical base.
[0008] In the aforementioned linear bearing disassembly tool, preferably, the number of the extrusion blocks is four, the shapes and sizes of the four extrusion blocks are exactly the same, the extrusion blocks are fan-shaped structures, and the longitudinal section shape of the extrusion blocks is an isosceles trapezoid that is larger on the outside and smaller on the inside, and a long strip hole is opened on the extrusion block in the horizontal direction, and the four extrusion blocks are connected by a circular ring.
[0009] In the aforementioned linear bearing disassembly tool, preferably, a plurality of conical protrusions are formed on the outer wall surface of the extrusion block.
[0010] In the aforementioned linear bearing disassembly tool, preferably, an operating rod is fixedly connected to the outer wall of the first nut, and a hand wheel is fixedly provided at the top end of the stud.
[0011] Compared with the prior art, the utility model includes a support frame, a through hole is opened on the top plate of the support frame, a stud is plugged and slidably connected with the through hole, a bearing connection assembly is installed at the lower end of the stud, a first nut is threadedly connected to the upper end of the stud, and the bottom surface of the first nut abuts against the top surface of the support frame. The utility model is fixedly connected to the inner wall of the linear bearing through the bearing connection assembly, and the stud is lifted by the first nut, so that the housing of the linear bearing can be disassembled, solving the problem that the bearing cannot be disassembled from the bottom in the prior art. The utility model can effectively improve the disassembly efficiency of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional view of the utility model;
[0013] Figure 2 yes Figure 1 A magnified view of part A in FIG.
[0014] Figure 3 is an axonometric view of the extrusion block.
[0015] Explanation of the reference numerals: support frame 1, stud 2, first nut 3, cylindrical base 4, extrusion sleeve 5, pressure plate 6, second nut 7, extrusion block 8, long hole 9, ring 10, conical protrusion 11, operating lever 12, handwheel 13, separation wheel housing 14, linear bearing housing 15. DETAILED DESCRIPTION
[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.
[0017] Embodiments of the present utility model: Figure 1-Figure 3As shown, a linear bearing disassembly tool includes a support frame 1, a through hole is opened on the top plate of the support frame 1, a stud 2 is plugged into and slidably connected to the through hole, a bearing connection assembly is installed at the lower end of the stud 2, and a first nut 3 is threadedly connected to the upper end of the stud 2, and the bottom surface of the first nut 3 abuts against the top surface of the support frame 1.
[0018] The support frame 1 is a U-shaped bracket with an opening facing downward, and is fixedly connected to the inner wall of the linear bearing housing 15 through the bearing connection assembly at the lower end of the stud 2, so that the linear bearing housing 15 and the stud 2 are connected as a whole, and the stud 2 is lifted by rotating the first nut 3, so as to pull out the linear bearing housing 15. The problem that the linear bearing cannot be disassembled from the bottom is effectively solved.
[0019] In a specific embodiment, a cylindrical base 4 is fixedly provided at the bottom end of the stud 2, and the top surface of the cylindrical base 4 is a conical surface convex upward. The bearing connection assembly includes an extrusion sleeve 5, a pressure plate 6, a second nut 7 and an extrusion block 8. The extrusion sleeve 5 is sleeved on the stud 2, and the bottom surface of the extrusion sleeve 5 is a conical surface convex downward. The taper of the bottom surface of the extrusion sleeve 5 is equal to the taper of the top surface of the cylindrical base 4. The second nut 7 is fixedly provided at the center position of the top surface of the pressure plate 6. The second nut 7 is threadedly connected to the stud 2. The bottom surface of the pressure plate 6 abuts against the top surface of the extrusion sleeve 5. A plurality of extrusion blocks 8 are provided between the extrusion sleeve 5 and the cylindrical base 4.
[0020] The diameter of the cylindrical base 4 is equal to the outer diameter of the extrusion sleeve 5. By rotating the second nut 7, the pressing plate 6 presses the extrusion sleeve 5 downward, so that the extrusion sleeve 5 cooperates with the cylindrical base 4 to extrude the extrusion block 8 outward, so that the extrusion block 8 fits tightly with the inner wall of the linear bearing housing 15, so that the linear bearing housing 15, the extrusion block 8, the cylindrical base 4, the extrusion sleeve 5, and the stud 2 are connected as a whole. In this way, the stud 2 can drive the linear bearing housing 15 to move upward when it moves upward.
[0021] Preferably, there are four extrusion blocks 8, the shapes and sizes of the four extrusion blocks 8 are exactly the same, the extrusion blocks 8 are fan-shaped, and the longitudinal section of the extrusion blocks 8 is an isosceles trapezoid that is larger outside and smaller inside. Long strip holes 9 are opened in the horizontal direction on the extrusion blocks 8, and the four extrusion blocks 8 are connected by a ring 10. A plurality of conical protrusions 11 are formed on the outer wall surface of the extrusion blocks 8.
[0022] The four extrusion blocks 8 are connected by the circular ring 10 , so as to prevent the extrusion blocks 8 from being separated from between the cylindrical base 4 and the extrusion sleeve 5 .
[0023] Furthermore, an operating rod 12 is fixedly connected to the outer wall of the first nut 3, and a hand wheel 13 is fixedly arranged at the top of the stud 2. The setting of the operating rod 12 can facilitate the staff to rotate the first nut 3 without the need for additional tools, and the setting of the hand wheel 13 can enable the staff to fix the stud 2 by hand so that it cannot rotate.
[0024] The working principle of the utility model: when in use, first use a tool to remove the inner ring of the linear bearing, then use the hand to arrange the four extrusion blocks 8 so that they retract between the cylindrical base 4 and the extrusion sleeve 5, and then insert the bearing connection assembly into the linear bearing housing 15. It should be noted that the linear bearing housing 15 refers to the outer ring of the linear bearing, and then one hand holds the handwheel 13 to prevent the stud 2 from rotating, and the other hand uses a tool to turn the second nut 7. The second nut 7 moves downward to cause the pressure plate 6 to press the extrusion sleeve 5 downward, so that the extrusion sleeve 5 cooperates with the cylindrical base 4 to squeeze the extrusion block 8 outward, so that the extrusion block 8 is tightly fitted with the inner wall of the linear bearing housing 15, and the conical protrusion 11 on the outer wall of the extrusion block 8 can be inserted into the inner wall of the linear bearing housing 15, so that the linear bearing housing 15, the extrusion block 8, the cylindrical base 4, the extrusion sleeve 5, and the stud 2 are connected as a whole. Then, the hand wheel 13 is released, and the first nut 3 is rotated using the operating rod 12 to move the stud 2 upward, and at the same time, the linear bearing housing 15 is pulled out of the mounting hole of the separation wheel housing 14 .
[0025] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.
Claims
1. A linear bearing disassembly tool, comprising a support frame (1), characterized in that: A through hole is provided on the top plate of the support frame (1), a stud (2) is plugged into and slidably connected to the through hole, a bearing connection assembly is installed at the lower end of the stud (2), a first nut (3) is threadedly connected to the upper end of the stud (2), and the bottom surface of the first nut (3) abuts against the top surface of the support frame (1).
2. The linear bearing disassembly tool according to claim 1, characterized in that: A cylindrical base (4) is fixedly provided at the bottom end of the stud (2), and the top surface of the cylindrical base (4) is an upwardly convex conical surface.
3. The linear bearing disassembly tool according to claim 2, characterized in that: The bearing connection assembly comprises an extrusion sleeve (5), a pressure plate (6), a second nut (7) and an extrusion block (8); the extrusion sleeve (5) is sleeved on the stud (2); the bottom surface of the extrusion sleeve (5) is a downwardly convex conical surface; the taper of the bottom surface of the extrusion sleeve (5) is equal to the taper of the top surface of the cylindrical base (4); the second nut (7) is fixed at the center position of the top surface of the pressure plate (6); the second nut (7) is threadedly connected to the stud (2); the bottom surface of the pressure plate (6) abuts against the top surface of the extrusion sleeve (5); and a plurality of the extrusion blocks (8) are arranged between the extrusion sleeve (5) and the cylindrical base (4).
4. The linear bearing disassembly tool according to claim 3, characterized in that: The number of the extrusion blocks (8) is four, and the four extrusion blocks (8) are completely identical in shape and size. The extrusion blocks (8) are fan-shaped structures, and the longitudinal section of the extrusion blocks (8) is an isosceles trapezoid that is larger on the outside and smaller on the inside. The extrusion blocks (8) are provided with long holes (9) in the horizontal direction, and the four extrusion blocks (8) are connected by a circular ring (10).
5. The linear bearing disassembly tool according to claim 4, characterized in that: A plurality of conical protrusions (11) are formed on the outer wall surface of the extrusion block (8).
6. The linear bearing disassembly tool according to claim 5, characterized in that: An operating rod (12) is fixedly connected to the outer wall of the first nut (3), and a hand wheel (13) is fixedly provided at the top end of the stud (2).