Puller tool for disassembling small-gap workpiece

Abstract

The utility model relates to the technical field of pullers, in particular to a puller tool for disassembling small-gap workpieces, which comprises a lead screw, a handle mechanism is mounted at the top end of the lead screw, a threaded sleeve is in threaded connection with the lead screw, an adjusting mechanism is fixedly mounted on the threaded sleeve, and two pulling feet are mounted on the adjusting mechanism. According to the puller tool, the handle mechanism is arranged, so that the screw rod can be conveniently rotated in various modes, the convenience of the puller tool is improved, the adjusting mechanism is arranged, the aim of conveniently adjusting the distance between the pulling feet on the two sides is achieved, and the puller tool can be conveniently used in a small gap.

Description

Technical Field

[0001] The utility model relates to the technical field of pullers, in particular to a puller tooling for disassembling workpieces with small gaps. Background Art

[0002] A puller generally refers to a tool used to disassemble circular parts such as bearings, gears, and pulleys, and is also known as a disassembler or extractor. It uses the lever principle or hydraulic principle to apply force to overcome the frictional force between parts, thereby pulling the parts out of the shaft or hole.

[0003] Currently, when the existing puller tooling is in use, it is not convenient to adjust the distance between the two pulling feet, which is not conducive to entering the small gap to pull out the workpiece. Moreover, the existing puller tooling only rotates the handle to rotate the lead screw, and the rotation method is single. When encountering resistance during rotation, it will be very difficult to handle. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages existing in the prior art, and to propose a puller tooling for disassembling workpieces with small gaps.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Design a puller tooling for disassembling workpieces with small gaps, including a lead screw. A handle mechanism is installed at the top end of the lead screw. A threaded sleeve is threadedly connected to the lead screw. An adjusting mechanism is fixedly installed on the threaded sleeve. Pulling feet are installed on the adjusting mechanism, and the number of pulling feet is two.

[0007] Further, the handle mechanism includes a round rod, and the round rod is fixedly installed on the lead screw.

[0008] Further, a turntable is fixedly installed at the top end of the lead screw. The shape of the turntable is a regular hexagon, and a cross slot is opened on the turntable.

[0009] Further, the adjusting mechanism includes a frame body, and the frame body is fixedly installed on the threaded sleeve. The shape of the frame body is a strip-shaped frame.

[0010] Further, a double-shaft drive motor is fixedly installed on the inner wall of the frame body. A threaded rod is fixedly installed at the rotating shaft end of the double-shaft drive motor.

[0011] Further, one end of the threaded rod is rotatably connected to the inner wall of the frame body through a bearing. The number of threaded rods is two, and the thread directions of the two threaded rods are opposite.

[0012] Further, a limiting sliding groove is formed on the surface of the frame body. The number of the limiting sliding grooves is two, and the shape of the limiting sliding groove is a strip-shaped through groove. A moving block is threadedly connected to the threaded rod. A sliding block is fixedly installed on the side surface of the moving block. The sliding block slides on the inner wall of the limiting sliding groove. The shape of the sliding block is a square block. The pulling foot is fixedly installed at one end of the sliding block through a bolt.

[0013] The beneficial effect of a pulling tool for disassembling small-clearance workpieces proposed by the present utility model lies in that: by providing a handle mechanism, it is convenient to rotate the lead screw in various ways, which is beneficial to improving the convenience of the pulling tool. By providing an adjusting mechanism, it serves the purpose of conveniently adjusting the distance between the two pulling feet, which is beneficial for use in small clearances. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a side view of the overall structure of the present utility model;

[0016] Figure 3 is a schematic diagram of the moving block of the present utility model;

[0017] Figure 4 is a schematic diagram of the pulling foot of the present utility model.

[0018] In the figure: 1, lead screw; 21, cross slot; 22, turntable; 23, round rod; 31, frame body; 32, limiting sliding groove; 33, threaded rod; 34, sliding block; 35, moving block; 36, dual-axis drive motor; 4, threaded sleeve; 5, pulling foot; 6, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Referring to Figures 1-4 , a pulling tool for disassembling small-clearance workpieces includes a lead screw 1, and is characterized in that: a handle mechanism is installed at the top end of the lead screw 1. By providing a handle mechanism, it is convenient to rotate the lead screw 1 in various ways, which is beneficial to improving the convenience of the pulling tool. A threaded sleeve 4 is threadedly connected to the lead screw 1. By providing a threaded sleeve 4, it is convenient to drive the pulling foot 5 to move vertically. An adjusting mechanism is fixedly installed on the threaded sleeve 4. By providing an adjusting mechanism, it serves the purpose of conveniently adjusting the distance between the two pulling feet 5, which is beneficial for use in small clearances. The pulling foot 5 is installed on the adjusting mechanism. The number of the pulling feet 5 is two, and the shape of the pulling foot 5 is Z-shaped, which is convenient for clamping and fixing the workpiece.

[0021] Specifically, the handle mechanism includes a round rod 23, which is fixedly installed on the lead screw 1. By providing the round rod 23, it is convenient to hold the round rod 23, thereby achieving the purpose of rotating the lead screw 1. The top end of the lead screw 1 is fixedly installed with a turntable 22, and the shape of the turntable 22 is a regular hexagon. By providing the regular hexagon turntable 22, it is convenient to use a wrench to rotate the lead screw 1. A cross slot 21 is provided on the turntable 22. By providing the cross slot 21, it is convenient to use a screwdriver to rotate the lead screw 1.

[0022] More specifically, the adjustment mechanism includes a frame 31, which is fixedly installed on the threaded sleeve 4. The shape of the frame 31 is a strip-shaped frame. A dual-axis drive motor 36 is fixedly installed on the inner wall of the frame 31. The dual-axis drive motor 36 has a forward and reverse rotation function. By providing the dual-axis drive motor 36, it is convenient to drive the threaded rod 33 to rotate. The rotating shaft end of the dual-axis drive motor 36 is fixedly installed with a threaded rod 33. One end of the threaded rod 33 is rotatably connected to the inner wall of the frame 31 through a bearing. The number of the threaded rods 33 is two, and the thread directions of the two threaded rods 33 are opposite. By providing the threaded rod 33, it is convenient to drive the slider 34 to move.

[0023] Finally, two limiting sliding grooves 32 are provided on the surface of the frame 31. The provision of the limiting sliding grooves 32 serves the purpose of limiting the movement of the slider 34. The shape of the limiting sliding grooves 32 is a strip-shaped through groove. A moving block 35 is threadedly connected to the threaded rod 33. The shape of the moving block 35 is a square block. By providing the moving block 35, it is convenient to receive the installation of the slider 34. A slider 34 is fixedly installed on the side surface of the moving block 35. The slider 34 slides on the inner wall of the limiting sliding groove 32. The shape of the slider 34 is a square block. The pulling foot 5 is fixedly installed at one end of the slider 34 through a bolt 6. By providing the bolt 6, it is convenient to install and disassemble the pulling foot 5 and facilitate the replacement of the pulling foot 5. When it is necessary to clamp and fix a workpiece, the dual-axis drive motor 36 is started. The dual-axis drive motor 36 drives the two threaded rods 33 on both sides to rotate. Since the thread directions of the two threaded rods 33 on both sides are opposite, the two threaded rods 33 will drive the two sliders 34 on both sides to slide towards each other along the inner wall of the limiting sliding groove 32 through the moving block 35. When the two moving blocks 35 move, they will drive the two pulling feet 5 on both sides to move towards each other until the pulling feet 5 clamp and fix the workpiece.

[0024] Working mode: Insert the two side pulling feet 5 deep into the gap and place them on both sides of the workpiece. Then start the double-axis drive motor 36. The double-axis drive motor 36 drives the two side threaded rods 33 to rotate. Since the thread directions of the two side threaded rods 33 are opposite, the two side threaded rods 33 will drive the two side sliders 34 to slide towards each other along the inner wall of the limit chute 32 through the moving blocks 35. When the two moving blocks 35 move, they will drive the two side pulling feet 5 to move towards each other until the pulling feet 5 clamp and fix the workpiece. Then rotate the round rod 23, and the round rod 23 drives the lead screw 1 to rotate. Since the workpiece is in a fixed state, under the limiting action of the workpiece, the lead screw 1 drives the thread sleeve 4 to move upward. During the upward movement of the thread sleeve 4, it will pull the workpiece out of the gap through the adjusting mechanism and the pulling feet 5.

[0025] At the same time, by setting the regular hexagon turntable 22, it is convenient to use a wrench to rotate the lead screw 1. By setting the cross slot 21, it is convenient to use a screwdriver to rotate the lead screw 1.

[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A puller tool for disassembling a small-gap workpiece, comprising a screw (1), characterized in that: A handle mechanism is installed at the top end of the screw rod (1), a threaded sleeve (4) is threadedly connected to the screw rod (1), an adjustment mechanism is fixedly installed on the threaded sleeve (4), a pull pin (5) is installed on the adjustment mechanism, and the number of the pull pins (5) is two.

2. The puller tool for disassembling a small-gap workpiece according to claim 1, characterized in that: The handle mechanism comprises a round rod (23), and the round rod (23) is fixedly mounted on the screw rod (1).

3. The puller tool for disassembling a small-gap workpiece according to claim 1, characterized in that: A rotating disk (22) is fixedly mounted on the top end of the screw rod (1); the rotating disk (22) is in the shape of a regular hexagon, and a cross groove (21) is provided on the rotating disk (22).

4. The puller tool for disassembling a small-gap workpiece according to claim 1, characterized in that: The adjustment mechanism comprises a frame (31), wherein the frame (31) is fixedly mounted on the threaded sleeve (4), and the frame (31) is in the shape of a strip frame.

5. The puller tool for disassembling a small-gap workpiece according to claim 4, characterized in that: A dual-axis drive motor (36) is fixedly mounted on the inner wall of the frame (31), and a threaded rod (33) is fixedly mounted on the rotating shaft end of the dual-axis drive motor (36).

6. The puller tool for disassembling a small-gap workpiece according to claim 5, characterized in that: One end of the threaded rod (33) is rotatably connected to the inner wall of the frame (31) via a bearing, and there are two threaded rods (33), with the threads of the two threaded rods (33) being in opposite directions.

7. The puller tool for disassembling a small-gap workpiece according to claim 6, characterized in that: The surface of the frame (31) is provided with a limiting slide groove (32), the number of the limiting slide grooves (32) is two, the limiting slide grooves (32) are in the shape of a bar-shaped through groove, a moving block (35) is threadedly connected to the threaded rod (33), a sliding block (34) is fixedly mounted on the side of the moving block (35), the sliding block (34) slides on the inner wall of the limiting slide groove (32), the sliding block (34) is in the shape of a square block, and the pull foot (5) is fixedly mounted on one end of the sliding block (34) by a bolt (6).

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