Belt pulley puller

Abstract

The utility model discloses a drawing device, relates to drawing device technical field, including fixed plate and external fixed subassembly, the surface of fixed plate is provided with the chute, and the surface of fixed plate is provided with the external fixed subassembly, the external fixed subassembly includes sliding support rod, fixed ring, spacing board, spacing groove, connecting piece, fixed threaded rod and fixed bolt, the sliding supporting rods are slidably connected to the inner sides of the sliding grooves, the upper ends of the sliding supporting rods are connected with fixing rings in a clamped mode, the bottoms of the sliding supporting rods are connected with limiting plates in a clamped mode, and limiting grooves are formed in the surfaces of the inner sides of the limiting plates. According to the puller, by arranging the outer fixing assembly and the inner fixing assembly, the puller can disassemble an outer bearing and can also disassemble an inner bearing, the puller is more practical, the puller is very stable and not prone to falling off when being fixed to the bearing, the puller can automatically disassemble the bearing through a motor through the pulling assembly, the time for screwing a threaded main rod is saved, and the practicability is high. And the bearing is disassembled more conveniently and quickly.

Description

Technical Field

[0001] The invention relates to the technical field of pullers, in particular to a puller. Background Art

[0002] When disassembling the charger and accessory drive pulley, there are many small bearings, which are difficult to remove with ordinary tools. Usually, a bearing puller is used at this time. The puller is used to pull and remove the shaft and parts on the shaft, such as gears, bearings, end covers, etc. Common forms include mechanical pullers and hydraulic pullers. However, the current pullers still have the following shortcomings:

[0003] For example, the patent document with application number 202022824472.2 discloses a puller. The puller fixes and aligns the puller and the shaft by setting a positioning device to ensure accurate positioning during disassembly, but it cannot disassemble both the outer bearing and the inner bearing, and has certain limitations when used. In addition, the bearing is not stable enough when fixed and is prone to falling off. The device needs to be manually twisted during disassembly, which takes a lot of time.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a puller is proposed. Utility Model Content

[0005] The object of the present invention is to provide a puller to solve the problems raised in the above background technology. To achieve the above object, the present invention provides the following technical solution: comprising a fixing plate and an external fixing component, wherein a sliding groove is provided on the surface of the fixing plate, and an external fixing component is arranged on the surface of the fixing plate, wherein the external fixing component is symmetrically arranged, and the outer surface of the outer bearing is clamped by the external fixing component, and an internal fixing component is also arranged on the surface of the fixing plate;

[0006] The outer surface of the outer bearing is clamped and the inner wall of the inner bearing is tightened and fixed by the outer fixing component and the inner fixing component;

[0007] The fixing plate is movably and detachably connected to a pulling assembly, and the pulling assembly is used to remove the inner / outer bearings.

[0008] Furthermore, the external fixing assembly includes a sliding support rod, a fixing ring, a limit plate, a limit groove, a connecting piece, a fixed threaded rod and a fixing bolt. The sliding support rod is slidably connected to the inner side of the sliding groove, the upper end of the sliding support rod is snap-connected with the fixing ring, and the bottom of the sliding support rod is snap-connected with the limit plate, the inner surface of the limit plate is provided with a limit groove, and connecting pieces are installed on the front and rear sides of the limit plate, the inner side of the connecting piece is slidably connected with a fixed threaded rod, and the two ends of the fixed threaded rod are threadedly connected with fixing bolts.

[0009] Furthermore, the limit plate is engaged and connected with the sliding support rod, the limit groove is aligned with the outer bearing, the sliding support rod is moved to move along the inner side of the sliding groove, driving the limit plate to move inward until the limit groove fits with the surface of the outer bearing, the fixed threaded rod is inserted into the inner side of the connecting piece, the fixed threaded rod is tightened to fix the limit plate, and the outer surface of the outer bearing is clamped.

[0010] Furthermore, the inner fixing assembly includes a connecting plate, a fixing rod and an outward hook, and the connecting plate is arranged below the fixing plate, the fixing rods are rotatably connected to both sides of the fixing plate, and the outward hook is arranged at the bottom of the fixing rod.

[0011] Furthermore, the internal fixing assembly further comprises a limiting rod and a fixing ring, and the limiting rod is slidably connected to the surface of the fixing rod, and the fixing rings are slidably connected to both ends of the limiting rod;

[0012] The connecting plate is threadedly connected to the threaded main rod, the connecting plate is installed at the lower end of the threaded main rod, the outward hooks are brought together and inserted into the inner bearing, the inner wall of the inner bearing is hooked by the outward hooks, and the fixing ring is moved toward the outer end of the limit rod until the outward hooks are more tightly connected to the inner wall of the inner bearing and remain fixed.

[0013] Furthermore, a threaded hole is provided on the surface of the fixing plate, and a pulling assembly arranged on the surface of the fixing plate is pulled and moved up and down in a threaded manner.

[0014] Furthermore, the pulling assembly includes a threaded main rod, a micro motor and a connecting cavity, and the threaded main rod is threadedly connected to the inner side of the threaded hole, a micro motor is arranged on the top of the threaded main rod, and a connecting cavity is installed on the outer side of the micro motor.

[0015] Furthermore, the pulling assembly also includes a handle and a non-slip pad, and the handle is installed on the right side of the connecting cavity, and the non-slip pad is bonded to the surface of the handle.

[0016] Furthermore, the threaded main rod is threadedly connected to the connecting plate, and the bottom of the threaded main rod is in a pointed cone shape.

[0017] The present invention provides a puller, which has the following beneficial effects:

[0018] 1. The utility model sets an external fixing component and an internal fixing component. The external fixing component includes a sliding support rod, a fixing ring, a limit plate, a limit groove, a connecting piece, a fixed threaded rod and a fixing bolt. The internal fixing component includes a connecting plate, a fixing rod and an outward hook. The internal fixing component also includes a limit rod and a fixing ring. When in use, the limit plate is engaged with the sliding support rod, the limit groove is aligned with the outer bearing, the sliding support rod is moved along the inner side of the slide groove, and the limit plate is driven to move inward until the limit groove fits with the surface of the outer bearing, and the fixed threaded rod is fixed. Insert the inner side of the connecting piece, tighten the threaded rod to fix the limit plate, and clamp the outer surface of the outer bearing. Through the threaded connection between the connecting plate and the threaded main rod, install the connecting plate at the lower end of the threaded main rod, bring the outward hooks together and insert them into the inner bearing, hook the inner wall of the inner bearing through the outward hooks, and move the fixing ring toward the outer end of the limit rod until the outward hook is more tightly connected to the inner wall of the inner bearing and remains fixed, so that the device can remove both the outer bearing and the inner bearing, is more practical, and is very stable when fixed to the bearing and is not easy to fall off.

[0019] 2. The utility model provides a pulling assembly, which includes a threaded main rod, a micro motor and a connecting cavity. The pulling assembly also includes a handle and a non-slip pad. When in use, when removing the outer bearing, the bottom of the threaded main rod is placed in the groove on the surface of the outer bearing, the handle is held, and the device is kept stable by force, and the micro motor is started to drive the threaded main rod to drive the fixed plate to move upward, and the limit plate is further driven to move upward by the sliding support rod to remove the outer bearing. When removing the inner bearing, the limit plate is removed, the threaded main rod moves downward until its bottom is flush with the bottom of the sliding support rod, and the sliding support rod is slid to a suitable position so that it can be supported in a certain stable position. The handle is held and the micro motor is started to drive the threaded main rod to rotate, drive the connecting plate to move upward, and the inner bearing is removed, so that the device can automatically remove the bearing through the motor, saving the time of twisting the threaded main rod, and removing the bearing is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a pulling component of a puller of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of an internal fixing component of a puller of the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of an external fixing component of a puller.

[0023] In the figure: 1. fixing plate; 2. sliding groove; 3. external fixing assembly; 301. sliding support rod; 302. fixing ring; 303. limiting plate; 304. limiting groove; 305. connecting piece; 306. fixing threaded rod; 307. fixing bolt; 4. internal fixing assembly; 401. connecting plate; 402. fixing rod; 403. outward hook; 404. limiting rod; 405. fixing ring; 5. threaded hole; 6. pulling assembly; 601. threaded main rod; 602. micro motor; 603. connecting cavity; 604. handle; 605. anti-slip cushion. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] like Figures 1 to 3 As shown, a puller includes a fixed plate 1 and an external fixed component 3, a sliding groove 2 is provided on the surface of the fixed plate 1, and an external fixed component 3 is arranged on the surface of the fixed plate 1, the external fixed component 3 includes a sliding support rod 301, a fixing ring 302, a limiting plate 303, a limiting groove 304, a connecting piece 305, a fixed threaded rod 306 and a fixing bolt 307, the sliding support rod 301 is slidably connected to the inner side of the sliding groove 2, the upper end of the sliding support rod 301 is snap-connected with the fixing ring 302, and the bottom of the sliding support rod 301 is snap-connected with the limiting plate 303, the inner surface of the limiting plate 303 is provided with a limiting groove 304, and connecting pieces 305 are installed on the front and rear sides of the limiting plate 303, the inner side of the connecting piece 305 is slidably connected with the fixing threaded rod 306, and the two ends of the fixing threaded rod 306 are threadedly connected with fixing bolts 307.

[0026] The specific operation is as follows. When in use, the limit plate 303 is engaged and connected with the sliding support rod 301, the limit groove 304 is aligned with the outer bearing, and the sliding support rod 301 is moved to move along the inner side of the slide groove 2, driving the limit plate 303 to move inward until the limit groove 304 is in contact with the surface of the outer bearing, and the fixed threaded rod 306 is inserted into the inner side of the connecting piece 305, and the fixed threaded rod 306 is tightened to fix the limit plate 303 and clamp the outer surface of the outer bearing.

[0027] Please refer to Figure 2, the sliding support rods 301 are symmetrically distributed on both sides of the surface of the fixed plate 1, and two groups of sliding support rods 301 are provided. The fixed plate 1 is an integrally formed steel structure, and the surface of the fixed plate 1 is provided with an internal fixing component 4 for fixing, the internal fixing component 4 includes a connecting plate 401, a fixing rod 402 and an outward hook 403, and the connecting plate 401 is provided on the lower surface of the fixed plate 1, the fixing plate 1 is rotatably connected with the fixing rod 402 on both sides, and the bottom of the fixing rod 402 is provided with an outward hook 403, the internal fixing component 4 also includes a limiting rod 404 and a fixing ring 405, and the surface of the fixing rod 402 is slidably connected with the limiting rod 404, and the two ends of the limiting rod 404 are slidably connected with the fixing ring 405;

[0028] The specific operation is as follows. When in use, the connecting plate 401 is installed at the lower end of the threaded main rod 601 through the threaded connection between the connecting plate 401 and the threaded main rod 601, the outward hook 403 is brought together and inserted into the inner bearing, the inner wall of the inner bearing is hooked by the outward hook 403, and the fixing ring 405 is moved toward the outer end of the limiting rod 404 until the outward hook 403 is more tightly connected to the inner wall of the inner bearing and remains fixed.

[0029] Please refer to Figure 1 , a threaded hole 5 is provided on the surface of the fixing plate 1, and a pulling assembly 6 for convenient pulling is provided on the surface of the fixing plate 1, the pulling assembly 6 includes a threaded main rod 601, a micro motor 602 and a connecting cavity 603, and the threaded main rod 601 is threadedly connected to the inner side of the threaded hole 5, a micro motor 602 is provided on the top of the threaded main rod 601, and a connecting cavity 603 is installed on the outer side of the micro motor 602, the pulling assembly 6 also includes a handle 604 and an anti-skid pad 605, and the handle 604 is installed on the right side of the connecting cavity 603, and the anti-skid pad 605 is bonded to the surface of the handle 604;

[0030] The specific operation is as follows. When using, when removing the outer bearing, place the bottom of the threaded main rod 601 in the groove on the surface of the outer bearing, fix the device and the outer bearing, hold the handle 604, use force to keep the device stable, start the micro motor 602, so that it drives the threaded main rod 601 to rotate, drive the fixed plate 1 to move upward, and further drive the limit plate 303 to move upward through the sliding support rod 301, so that the outer bearing can be removed. When removing the inner bearing, remove the limit plate 303, move the threaded main rod 601 downward until its bottom is flush with the bottom of the sliding support rod 301, slide the sliding support rod 301 to a suitable position so that it can be supported in a certain stable position, hold the handle 604, start the micro motor 602, so that it drives the threaded main rod 601 to rotate, and further drive the connecting plate 401 to move upward, so that the inner bearing can be removed.

[0031] In summary, if Figures 1 to 3As shown, when the puller is used, first, when the outer bearing needs to be removed, the limit plate 303 is engaged with the sliding support rod 301, the bottom of the threaded main rod 601 is placed in the groove on the surface of the outer bearing, the limit groove 304 is aligned with the outer bearing, the sliding support rod 301 is moved to make it move along the inner side of the slide groove 2, and the limit plate 303 is driven to move inward until the limit groove 304 is in contact with the surface of the outer bearing, the fixed threaded rod 306 is inserted into the inner side of the connecting piece 305, the fixed threaded rod 306 is tightened to fix the limit plate 303, and the outer surface of the outer bearing is clamped, the handle 604 is held, and the device is kept stable with force, and the micro motor 602 is started to drive the threaded main rod 601 to rotate, drive the fixed plate 1 to move upward, and further drive the limit plate 303 to move upward through the sliding support rod 301, The outer bearing can be removed. When removing the inner bearing, the limit plate 303 is removed, and the connecting plate 401 is installed at the lower end of the threaded main rod 601 through the threaded connection between the connecting plate 401 and the threaded main rod 601. The threaded main rod 601 moves downward until its bottom is flush with the bottom of the sliding support rod 301, and the sliding support rod 301 is slid to a suitable position so that it can be supported in a certain stable position. The outward hook 403 is brought together and inserted into the inner bearing, and the inner wall of the inner bearing is hooked by the outward hook 403. The fixing ring 405 is moved toward the outer end of the limit rod 404 until the outward hook 403 is more tightly connected to the inner wall of the inner bearing and remains fixed. The handle 604 is held and the micro motor 602 is started to drive the threaded main rod 601 to rotate, and further drive the connecting plate 401 to move upward, so that the inner bearing can be removed.

[0032] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A puller, comprising a fixing plate (1) and an external fixing assembly (3), characterized in that: The surface of the fixing plate (1) is provided with a sliding groove (2), and the surface of the fixing plate (1) is provided with an external fixing component (3), the external fixing component (3) is symmetrically arranged, and the outer surface of the outer bearing is clamped by the external fixing component (3), and the surface of the fixing plate (1) is also provided with an internal fixing component (4); The outer surface of the outer bearing is clamped and the inner wall of the inner bearing is tightened and fixed by an outer fixing component (3) and an inner fixing component (4); The fixing plate (1) is movably and detachably connected to a pulling assembly (6), and the pulling assembly (6) is used to remove the inner / outer bearings.

2. A puller according to claim 1, characterized in that: The external fixing assembly (3) comprises a sliding support rod (301), a fixing ring (302), a limiting plate (303), a limiting groove (304), a connecting piece (305), a fixing threaded rod (306) and a fixing bolt (307); the sliding support rod (301) is slidably connected to the inner side of the sliding groove (2); the upper end of the sliding support rod (301) is snap-connected with the fixing ring (302), and the bottom of the sliding support rod (301) is snap-connected with the limiting plate (303); the inner surface of the limiting plate (303) is provided with a limiting groove (304), and the front and rear sides of the limiting plate (303) are both installed with connecting pieces (305); the inner side of the connecting piece (305) is slidably connected with the fixing threaded rod (306), and the two ends of the fixing threaded rod (306) are threadedly connected with fixing bolts (307).

3. A puller according to claim 2, characterized in that: The limit plate (303) is engaged with the sliding support rod (301), the limit groove (304) is aligned with the outer bearing, the sliding support rod (301) is moved to move along the inner side of the slide groove (2), and the limit plate (303) is driven to move inward until the limit groove (304) is in contact with the surface of the outer bearing, the fixed threaded rod (306) is inserted into the inner side of the connecting piece (305), the fixed threaded rod (306) is tightened to fix the limit plate (303), and the outer surface of the outer bearing is clamped.

4. A puller according to claim 3, characterized in that: The inner fixing assembly (4) comprises a connecting plate (401), a fixing rod (402) and an outward hook (403), wherein the connecting plate (401) is arranged below the fixing plate (1), the fixing rods (402) are rotatably connected to both sides of the fixing plate (1), and the outward hook (403) is arranged at the bottom of the fixing rod (402).

5. A puller according to claim 4, characterized in that: The inner fixing assembly (4) further comprises a limiting rod (404) and a fixing ring (405), and the surface of the fixing rod (402) is slidably connected to the limiting rod (404), and the fixing rings (405) are slidably connected to both ends of the limiting rod (404); The connecting plate (401) is connected to the threaded main rod (601) by threading, the connecting plate (401) is installed on the lower end of the threaded main rod (601), the outward hooks (403) are put together and inserted into the inner bearing, the inner wall of the inner bearing is hooked by the outward hooks (403), and the fixing ring (405) is moved toward the outer end of the limiting rod (404) until the outward hooks (403) are more tightly connected to the inner wall of the inner bearing and remain fixed.

6. A puller according to claim 5, characterized in that: A threaded hole (5) is provided on the surface of the fixing plate (1), and a drawing component (6) arranged on the surface of the fixing plate (1) is pulled and moved up and down in a threaded manner.

7. A puller according to claim 6, characterized in that: The pulling assembly (6) comprises a threaded main rod (601), a micro motor (602) and a connecting cavity (603), wherein the threaded main rod (601) is threadedly connected to the inner side of the threaded hole (5), the micro motor (602) is arranged on the top of the threaded main rod (601), and the connecting cavity (603) is installed on the outer side of the micro motor (602).

8. A puller according to claim 7, characterized in that: The pulling assembly (6) further comprises a handle (604) and a non-slip pad (605), and the handle (604) is installed on the right side of the connecting cavity (603), and the non-slip pad (605) is bonded to the surface of the handle (604).

9. A puller according to claim 8, characterized in that: The threaded main rod (601) is threadedly connected to the connecting plate (401), and the bottom of the threaded main rod (601) is in a pointed cone shape.

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