Self-adaptive pin shaft dismounting and mounting device

Abstract

The utility model belongs to the technical field of engineering instruments, and particularly relates to a self-adaptive pin shaft dismounting and mounting device which comprises a working oil cylinder, the working oil cylinder comprises an oil cylinder barrel and a piston rod, a multi-claw connecting sleeve is arranged at the front end of the oil cylinder barrel, and a hanging ring is arranged on the outer side of the oil cylinder barrel; and a screw rod can be mounted at the front end of the piston rod. Compared with the prior art, the utility model has the advantages of intelligent control, accurate control of shaft mounting / taking distance, good safety performance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering equipment, and particularly relates to an adaptive disassembly and assembly pin device. Background Art

[0002] Shafts are common connectors in engineering machinery and equipment. They need to be disassembled and assembled when replacing or repairing the structural parts connected to them. However, in actual applications, many of them are installed at higher positions on the equipment, making disassembly and assembly inconvenient and posing safety hazards.

[0003] Existing technology generally uses a shaft puller to remove and install shafts. However, this method has certain limitations. First, when the shaft is pulled out from a high place, gravity can generate a large impact force, causing the shaft to fly high in the air, posing a threat to nearby personnel and equipment. Second, if the shaft is not properly supported and protected, it is easily damaged.

[0004] In view of the above, the utility model provides an adaptive shaft pulling solution, which can accurately control the installation and pulling distance, and can safely and conveniently remove or install the shaft in place with the help of manual operation. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an adaptive disassembly and assembly pin device to solve the above problems. The specific technical solution is as follows:

[0006] An adaptive disassembly and assembly pin device includes a working cylinder, which includes a cylinder barrel and a piston rod. A multi-claw connecting sleeve is provided at the front end of the cylinder barrel, and a lifting ring is provided on the outside of the cylinder barrel; a screw can be installed at the front end of the piston rod.

[0007] Furthermore, a display and control unit is provided for controlling the movement of the oil cylinder.

[0008] Furthermore, a cylinder position sensor for monitoring the displacement of the piston rod is provided at the tail end of the cylinder barrel.

[0009] Furthermore, the multi-claw connecting sleeve is a three-claw connecting sleeve or a two-claw connecting sleeve.

[0010] Furthermore, the multi-claw connecting sleeve includes a plurality of claws and a connecting sleeve, the claws are pivotally connected to the connecting sleeve, and a claw anti-drop spring is provided between the claws and the connecting sleeve.

[0011] Furthermore, one end of the claw anti-drop spring is fixed on the connecting sleeve, and the other end is adjustable at a fixed position on the claw.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Intelligent control, convenient and safe removal of the shaft;

[0014] 2. Accurately control the installation / shaft removal distance;

[0015] 3. Save time and effort;

[0016] 4. Protect construction workers;

[0017] 5. Protect the removed shaft for easy reuse;

[0018] 6. A variety of connection sets, flexible to use, suitable for more scenarios;

[0019] 7. The gripping claws are tightened to prevent them from loosening suddenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the adaptive disassembly and assembly pin device;

[0021] Figure 2 It is a three-dimensional structural diagram of the adaptive disassembly and assembly pin device replaced with a two-claw connecting sleeve;

[0022] Figure 3 This is a schematic diagram of a scheme in which the height position of the anti-drop spring of the upper claw of the adaptive disassembly and assembly pin device is adjustable;

[0023] Figure 4 This is the principle diagram of the control system of the utility model;

[0024] Description of the drawings: display and control unit 1, working cylinder 2, cylinder barrel 21, piston rod 22, cylinder position sensor 3, balancing valve 4, electric proportional reversing valve 5, lifting ring 6, claw 7, screw 8, three-claw connecting sleeve 9, two-claw connecting sleeve 10, claw anti-drop spring 11. DETAILED DESCRIPTION

[0025] The utility model will now be further described with reference to the accompanying drawings.

[0026] The present invention will be further described below with reference to specific embodiments.

[0027] Reference Figures 1-4 As shown, an adaptive disassembly and assembly pin device and method, comprising:

[0028] Display and control unit 1: Display and control unit 1 is an integrated display and control touch screen, used to set the device operating parameters and control the start and stop of the equipment.

[0029] Working cylinder 2; The working cylinder 2 is an actuator for removing or installing a shaft, which includes a cylinder barrel 21 and a piston rod 22. A multi-claw connecting sleeve is installed at its front end according to the usage scenario. It includes a connecting sleeve fixed on the cylinder barrel 21 and a plurality of claws 7 pivoted on the connecting sleeve. The multi-claw connecting sleeve is a three-claw connecting sleeve 9 or a two-claw connecting sleeve 10, which is used to hook on the flange plate where the shaft hole is located to fix the entire device, provide stable support, and realize positioning at the same time so that the piston rod 22 is coaxial with the shaft; there is a lifting ring 6 on the outside to lift the entire device to prevent it from falling suddenly when removing the shaft; a cylinder position sensor 3 is installed at the tail to monitor the position of the piston rod 22 in real time to ensure the accuracy of the shaft disassembly and assembly. When installing the shaft, the piston rod 22 extends against the plane of the piston rod 22 to push the shaft into the shaft hole; when removing the shaft, a screw 8 is installed in the screw hole of the piston rod 22, and the other end of the screw 8 is connected to the shaft to be removed. The piston rod 22 contracts to pull the shaft out of the shaft hole.

[0030] Balance valve 4; used to make the working cylinder 2 move smoothly.

[0031] The electric proportional reversing valve 5 switches the oil supply of the working cylinder 2 so that the working cylinder 2 can be switched between extension and contraction, and controls the flow rate of the oil supply to control the movement speed of the working cylinder 2.

[0032] The claw anti-drop spring 11 has one end fixed to the connecting sleeve of the multi-claw connecting sleeve, and the other end fixed to the claw 7. When in use, the claw anti-drop spring 11 opens and uses its elastic force to hold the claw 7 tightly to the flange plate to prevent the claw 7 from suddenly loosening when disassembling the device. In one embodiment, one end of the claw anti-drop spring 11 is fixed to the connecting sleeve, and the other end is adjustable in the fixed position on the claw 7, so that the holding force of the claw 7 can be adjusted to increase the flexibility and safety of the device. For details, please refer to Figure 3 , which shows a solution for adjusting the fixed position of the claw anti-drop spring 11 on the claw 7 by using different hole positions.

[0033] Working principle:

[0034] Use a sling to lift the entire assembly device through the lifting ring 6, and then select a three-claw connecting sleeve 9 or a two-claw connecting sleeve 10 according to the usage scenario, place the claw 7 to the other side of the flange plate where the disassembly and assembly device is located relative to the shaft hole, connect the electric proportional reversing valve 5 to the external oil source and power supply, use the screw 8 to connect the piston rod 22 of the working cylinder 2 and the shaft to be operated, turn on the power, operate the working cylinder 2 on the display and control unit 1 to extend or retract until the claw 7 is tightened, so that the disassembly and assembly device is coaxial with the shaft to be operated, set the extension or retraction distance of the working cylinder 2 according to the installation depth of the shaft, the distance should be slightly smaller than the installation depth of the shaft to ensure safe removal or accurate installation, and then set the output of the display and control unit 1 to extension or retraction; click the start button of the display and control unit 1, and the system will work according to the preset program until the cylinder position sensor 3 monitors that the moving distance is equal to the set distance of the display and control unit 1 and automatically stops, and then manually operate to safely remove or accurately install the shaft.

[0035] The above describes the technical principles of the utility model in conjunction with specific embodiments. This description is intended solely to explain the principles of the utility model and should not be construed in any way as limiting the scope of protection of the utility model. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the utility model without inventive effort, and such implementations will fall within the scope of protection of the utility model claims.

Claims

1. An adaptive disassembly and assembly pin device, characterized in that: The working oil cylinder (2) includes a cylinder barrel (21) and a piston rod (22). A multi-claw connecting sleeve is provided at the front end of the cylinder barrel (21), and a lifting ring (6) is provided on the outside of the cylinder barrel (21). A screw rod (8) can be installed at the front end of the piston rod (22).

2. The adaptive disassembly and assembly pin device according to claim 1, characterized in that: A display and control unit (1) is provided for controlling the movement of the oil cylinder.

3. The adaptive disassembly and assembly pin device according to claim 2, characterized in that: A cylinder position sensor (3) for monitoring the displacement of the piston rod (22) is provided at the tail end of the cylinder barrel (21).

4. The adaptive disassembly and assembly pin device according to claim 3, characterized in that: The multi-claw connecting sleeve is a three-claw connecting sleeve (9) or a two-claw connecting sleeve (10).

5. The adaptive disassembly and assembly pin device according to claim 4, characterized in that: The multi-claw connecting sleeve comprises a plurality of claws (7) and a connecting sleeve, wherein the claws (7) are pivotally connected to the connecting sleeve, and a claw anti-drop spring (11) is provided between the claws (7) and the connecting sleeve.

6. The adaptive disassembly and assembly pin device according to claim 5, characterized in that: One end of the claw anti-drop spring (11) is fixed to the connecting sleeve, and the other end is adjustable at a fixed position on the claw (7).

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