Novel puller device

Abstract

The invention discloses a novel puller device which comprises a long shaft, a traction sleeve arranged on the long shaft in a sleeving mode and a traction piece in sliding fit with the traction sleeve, traction lugs are arranged at the two ends of the traction piece, and the traction lugs are connected with movable counter-force jaws. The right sides of the front face and the back face of the traction piece are provided with an adjusting hydraulic oil cylinder and the like. The traction sleeve can move left and right on the long shaft and is locked and positioned through a nut. During operation, the position of the traction sleeve is adjusted firstly, then the lifting hydraulic oil cylinder is controlled to enable the traction piece to reach the adaptive height, the adjusting hydraulic oil cylinder is started to adjust the clamping position of the counter-force gripper arm, and finally the lifting hydraulic oil cylinder is cooperatively operated for disassembly. Compared with the prior art, the device has the advantages of being higher in adaptability, higher in flexibility, more convenient to operate, higher in stability, firmer in grabbing and the like, can meet different dismounting requirements, accurately dismount workpieces in complex shapes and in special positions, and improves the working efficiency and the operation safety.

Description

Technical Field

[0001] The invention relates to the field of mechanical maintenance tools, in particular to a novel puller device. Background Art

[0002] In the field of mechanical manufacturing and maintenance, the puller device is an indispensable tool for disassembling workpieces such as shaft parts, gears, and bearings. For a long time, traditional pullers have played an important role in practical applications. However, with the continuous development of industrial technology and the increasing requirements for mechanical manufacturing and maintenance work, the shortcomings of existing pullers have gradually become prominent. Traditional pullers work based on the principle of levers, and their working fulcrums are often fixed at the position of the shaft head. This structural design leads to many problems. On the one hand, due to the limitations of the fulcrum position, the working range of the jaws is strictly limited, so that the puller device can only be applied to workpieces of a specific type or size, and cannot flexibly respond to diverse work needs, which greatly limits its wide application. On the other hand, when it is necessary to pull out and disassemble the workpiece in the long shaft, because the working fulcrum of the puller device is located at the shaft head, the working distance is too long, either the workpiece cannot be grasped by the clamp, or the puller bracket needs to be frequently replaced to grasp the workpiece to be disassembled, which undoubtedly increases the complexity of the operation, greatly reduces the convenience of operation, and seriously affects the work efficiency and quality. In order to solve these problems existing in the existing puller device and meet the higher performance requirements of the puller device in industrial production, the research and development of a new type of puller device is imminent. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of puller device, through the design of the traction sleeve set on the long axis and the sliding matching traction member, the traction member can move freely along the long axis to meet the disassembly requirements of different lengths and spacings. At the same time, the reaction force clamp claws movably connected on the traction ears can be flexibly adjusted according to the shape and position of the actual components to be disassembled, so as to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new type of horse pulling device, including a long shaft 8, characterized in that a traction sleeve 4 is sleeved on the long shaft 8, a traction member 3 is slidably matched on the outside of the traction sleeve 4, a pair of traction ears 31 are threadedly fixedly connected at both ends of the traction member 3, a through sliding groove is provided on the front of the traction ear 31, and a connecting groove that passes through the sliding groove is provided on the left side; the connecting end of the reaction force clamp claw 2 is inserted into the connecting groove of the traction ear 31 and inserted from the sliding groove to the connecting end of the reaction force clamp claw 2 through the connecting shaft 21; an adjusting hydraulic oil cylinder 9 is fixedly installed on the right side of the front of the traction member 3, and the telescopic end of the adjusting hydraulic oil cylinder 9 is fixedly connected to the middle part of the connecting rod 91; the two ends of the connecting rod 91 are respectively rotatably connected to the rotating rod 92; the other end of the rotating rod 92 is rotatably matched with the connecting shaft 21 on the traction ear 31; a reaction seat 6 is fixedly installed on one end of the traction sleeve 4, and lifting hydraulic oil cylinders 7 are respectively installed on both sides of the two ends of the reaction seat 6, and the telescopic end of the lifting hydraulic oil cylinder 7 is placed on the top of the traction member 3; The right end of the back side of the traction member 3 is also provided with an adjusting hydraulic cylinder 9, a connecting rod 91, and a rotating rod 92. The other end of the rotating rod 92 is rotatably connected to the extension section of the connecting shaft 21 on the traction ear 31.

[0005] The traction member 3 is an annular sleeve, which is slidably fitted on the traction sleeve 4, and traction ears are symmetrically provided at both ends.

[0006] The traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. Locking devices 5 are respectively provided at both ends of the traction sleeve 4.

[0007] The two ends of the long shaft 8 are respectively provided with threads, and the middle is a bare rod section. The traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. Nuts are respectively provided at both ends of the traction sleeve 4, which are tightened on the threads to lock and locate the position of the traction sleeve 4.

[0008] The end of the reaction force clamp claw 2 is provided with a limit hook.

[0009] The rotating rod 92 is provided with an anti-interference groove near the main body of the puller device. When the rotating rod 92 is close to the main body of the puller device, the anti-interference groove prevents it from colliding.

[0010] The lifting hydraulic cylinders 7 can be increased to 3 or 4 according to actual conditions. When the lifting hydraulic cylinders 7 are increased to 3, they are installed on the reaction seat 6 in the form of an equilateral triangle; when the lifting hydraulic cylinders 7 are increased to 4, they are installed on the reaction seat 6 in the form of a square.

[0011] The long axis 8 is provided with scale marks to facilitate accurate adjustment of the position of the traction sleeve 4.

[0012] The traction ear 31 can be replaced with a larger or smaller specification according to actual conditions, and can also be replaced with a non-adjustable special specification traction ear in special circumstances.

[0013] First, according to the size and position of the disassembled part, adjust the position of the traction sleeve 4 on the long shaft 8. Since the two ends of the long shaft 8 are respectively provided with threads and the middle is a bare rod section, the traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. By manually rotating the nuts at both ends of the traction sleeve 4, the traction sleeve 4 is gradually tightened or loosened along the threads, so that the traction sleeve 4 is fixed in an accurate position where it can effectively play a role. Next, operate the lifting hydraulic oil cylinder 7 installed on both sides of the two ends of the reaction seat 6 to control the telescopic end of the lifting hydraulic oil cylinder 7 to lift the traction member 3 to a height suitable for the disassembled part. Subsequently, start the adjustment hydraulic oil cylinder 9 set on the right side of the front and the right end of the back of the traction member 3. The telescopic end of the adjustment hydraulic oil cylinder 9 drives the connecting rod 91 to move, and then drives the connecting shaft 21 through the rotating rod 92, so that the reaction force clamp claw 2 can be adjusted to the best position to firmly clamp the disassembled part. When adjusting the clamping position, the telescopic amount of the adjustment hydraulic oil cylinder 9 should be accurately controlled according to the shape and force point of the disassembled part to ensure that the reaction force clamp claw 2 can provide uniform and strong clamping force. When the reaction force clamp claw 2 firmly clamps the disassembled component, the lifting hydraulic cylinder 7 is operated again in coordination. By controlling the telescopic action of the lifting hydraulic cylinder 7, appropriate pulling force is applied to gradually separate the disassembled component from its original installation position.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Stronger adaptability: Through the freely movable traction sleeve on the long axis and the sliding-fit traction part design, it can adapt to the disassembly requirements of various lengths and spacings, overcoming the limitations of the existing puller device in terms of its scope of application.

[0015] Greater flexibility: The reaction force claws on the traction ears are movably connected and position-adjustable, which can be flexibly adjusted according to the actual shape and position of the components to be disassembled. Whether it is a workpiece with a complex shape or a special position, it can be accurately disassembled, which is often difficult to achieve with existing technologies.

[0016] More convenient operation: The locking devices at both ends of the traction sleeve and the special design of the long axis make the positioning of the traction sleeve simple and quick, without the need for complicated operating steps, greatly improving work efficiency.

[0017] Enhanced stability: The lifting hydraulic cylinders installed on both sides of the reaction seat provide uniform and powerful driving force for the traction parts, making the disassembly process smoother and reducing accidental damage caused by uneven force.

[0018] Firmer grip: A limit hook is provided at the end of the reaction force clamp claw, which can effectively prevent the workpiece from slipping during the disassembly process, improving the safety and reliability of the operation, which is an advantage that many puller devices in the prior art do not have. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a novel puller device of the present invention; In the figure: 1. workpiece; 2. reaction force claw; 21. connecting shaft; 3. traction piece; 31. traction ear; 4. traction sleeve; 5. locking device; 6. reaction force seat; 7. lifting hydraulic cylinder; 8. long shaft; 9. adjusting hydraulic cylinder; 91. connecting rod; 92. rotating rod. Specific implementation methods

[0020] The technical solutions in the embodiments of the present invention will be fully described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] As shown in the figure, a new type of horse pulling device includes a long shaft 8, characterized in that a traction sleeve 4 is sleeved on the long shaft 8, and a traction member 3 is slidably matched on the outside of the traction sleeve 4, and a pair of traction ears 31 are threadedly fixedly connected at both ends of the traction member 3, and a through sliding groove is provided on the front of the traction ear 31, and a connecting groove that penetrates to the sliding groove is provided on the left side; the connecting end of the reaction force clamp claw 2 is inserted into the connecting groove of the traction ear 31 and inserted from the sliding groove to the connecting end of the reaction force clamp claw 2 through the connecting shaft 21; an adjusting hydraulic oil cylinder 9 is fixedly installed on the right side of the front of the traction member 3, and the telescopic end of the adjusting hydraulic oil cylinder 9 is fixedly connected to the middle part of the connecting rod 91; the two ends of the connecting rod 91 are respectively rotatably connected to the rotating rod 92; the other end of the rotating rod 92 is rotatably matched with the connecting shaft 21 on the traction ear 31; a reaction force seat 6 is fixedly installed on one end of the traction sleeve 4, and lifting hydraulic oil cylinders 7 are respectively installed on both sides of the two ends of the reaction force seat 6, and the telescopic end of the lifting hydraulic oil cylinder 7 is placed on the top of the traction member 3; The right end of the back side of the traction member 3 is also provided with an adjusting hydraulic cylinder 9, a connecting rod 91, and a rotating rod 92. The other end of the rotating rod 92 is rotatably connected to the extension section of the connecting shaft 21 on the traction ear 31.

[0022] The traction member 3 is an annular sleeve, which is slidably fitted on the traction sleeve 4, and traction ears are symmetrically provided at both ends.

[0023] The traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. Locking devices 5 are respectively provided at both ends of the traction sleeve 4.

[0024] The two ends of the long shaft 8 are respectively provided with threads, and the middle is a bare rod section. The traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. Nuts are respectively provided at both ends of the traction sleeve 4, which are tightened on the threads to lock and locate the position of the traction sleeve 4.

[0025] The end of the reaction force clamp claw 2 is provided with a limiting hook.

[0026] The rotating rod 92 is provided with an anti-interference groove near the main body of the puller device. When the rotating rod 92 is close to the main body of the puller device, the anti-interference groove prevents it from colliding.

[0027] The lifting hydraulic cylinders 7 can be increased to 3 or 4 according to actual conditions. When the lifting hydraulic cylinders 7 are increased to 3, they are installed on the reaction seat 6 in the form of an equilateral triangle; when the lifting hydraulic cylinders 7 are increased to 4, they are installed on the reaction seat 6 in the form of a square.

[0028] The long axis 8 is provided with scale marks to facilitate accurate adjustment of the position of the traction sleeve 4.

[0029] The traction ear 31 can be replaced with a larger or smaller specification according to actual conditions, and can also be replaced with a non-adjustable special specification traction ear in special circumstances.

[0030] First, according to the size and position of the disassembled part, adjust the position of the traction sleeve 4 on the long shaft 8. Since the two ends of the long shaft 8 are respectively provided with threads and the middle is a bare rod section, the traction sleeve 4 is sleeved on the long shaft 8 and can move left and right. By manually rotating the nuts at both ends of the traction sleeve 4, the traction sleeve 4 is gradually tightened or loosened along the threads, so that the traction sleeve 4 is fixed in an accurate position where it can effectively play a role. Next, operate the lifting hydraulic oil cylinder 7 installed on both sides of the two ends of the reaction seat 6 to control the telescopic end of the lifting hydraulic oil cylinder 7 to lift the traction member 3 to a height suitable for the disassembled part. Subsequently, start the adjustment hydraulic oil cylinder 9 set on the right side of the front and the right end of the back of the traction member 3. The telescopic end of the adjustment hydraulic oil cylinder 9 drives the connecting rod 91 to move, and then drives the connecting shaft 21 through the rotating rod 92, so that the reaction force clamp claw 2 can be adjusted to the best position to firmly clamp the disassembled part. When adjusting the clamping position, the telescopic amount of the adjustment hydraulic oil cylinder 9 should be accurately controlled according to the shape and force point of the disassembled part to ensure that the reaction force clamp claw 2 can provide uniform and strong clamping force. When the reaction force clamp claw 2 firmly clamps the disassembled component, the lifting hydraulic cylinder 7 is operated again in coordination. By controlling the telescopic action of the lifting hydraulic cylinder 7, appropriate pulling force is applied to gradually separate the disassembled component from its original installation position.

Claims

1. A novel puller device, comprising a long shaft (8), characterized in that: The long shaft (8) is sleeved with a traction sleeve (4), and a traction member (3) is slidably fitted on the outside of the traction sleeve (4). A pair of traction ears (31) are threadedly fixedly connected at both ends of the traction member (3). A through sliding groove is provided on the front side of the traction ear (31), and a connecting groove that passes through the sliding groove is provided on the left side. The connection end of the reaction force clamp claw (2) is inserted into the connecting groove of the traction ear (31) and is inserted from the sliding groove into the connection end of the reaction force clamp claw (2) through the connecting shaft (21). The traction member (3) is fixedly installed on the right side of the front side. An adjusting hydraulic cylinder (9) is provided, wherein the telescopic end of the adjusting hydraulic cylinder (9) is fixedly connected to the middle of a connecting rod (91); the two ends of the connecting rod (91) are respectively rotatably connected to rotating rods (92); the other end of the rotating rod (92) is rotatably connected to a connecting shaft (21) on a traction ear (31); a reaction seat (6) is fixedly installed at one end of the traction sleeve (4), and lifting hydraulic cylinders (7) are respectively installed on both sides of the two ends of the reaction seat (6), and the telescopic end of the lifting hydraulic cylinder (7) is placed on the top of the traction member (3).

2. A novel puller device according to claim 1, characterized in that: The right end of the back side of the traction member (3) is also provided with an adjusting hydraulic cylinder (9), a connecting rod (91), and a rotating rod (92). The other end of the rotating rod (92) is rotatably connected to an extension section of the connecting shaft (21) on the traction ear (31).

3. A novel puller device according to claim 1, characterized in that: The traction member (3) is an annular sleeve, which is slidably mounted on the outside of the traction sleeve (4), and has traction ears symmetrically arranged at both ends.

4. A novel puller device according to claim 1, characterized in that: The traction sleeve (4) is sleeved on the long shaft (8) and can move left and right. Locking devices (5) are respectively provided at both ends of the traction sleeve (4).

5. A novel puller device according to claim 1, characterized in that: The two ends of the long shaft (8) are respectively provided with threads, and the middle is a bare rod section. The traction sleeve (4) is sleeved on the long shaft (8) and can move left and right. Nuts are respectively provided at the two ends of the traction sleeve (4) and are tightened on the threads to lock and locate the position of the traction sleeve (4).

6. A novel puller device according to claim 1, characterized in that: A limiting hook is provided at the end of the reaction force clamp claw (2).

7. A novel puller device according to claim 1, characterized in that: The rotating rod (92) is provided with an anti-interference groove at a portion of the rod body close to the main body of the puller device. When the rotating rod (92) is close to the main body of the puller device, the anti-interference groove prevents it from colliding.

8. A novel puller device according to claim 1, characterized in that: The lifting hydraulic cylinders (7) can be increased to 3 or 4 according to actual conditions. When the lifting hydraulic cylinders (7) are increased to 3, they are installed on the reaction seat (6) in the form of an equilateral triangle; when the lifting hydraulic cylinders (7) are increased to 4, they are installed on the reaction seat (6) in the form of a square.

9. A novel puller device according to claim 1, characterized in that: The long axis (8) is provided with scale marks to facilitate accurate adjustment of the position of the traction sleeve (4).

10. A novel puller device according to claim 1, characterized in that: The traction ear (31) can be replaced with a larger or smaller specification according to actual conditions, and in special circumstances, a non-adjustable traction ear of special specifications can also be replaced.

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