CN104493471B - The auxiliary disassembling apparatus that a kind of differential mechanism is disassembled - Google Patents

Abstract

An auxiliary dismantling device for dismantling a differential, including a mechanical part and a hydraulic control part. The mechanical part includes the assembly frame of the dismantling mechanism, the lifting sleeve, the central shaft, the bolt dismantling wrench and the mechanical claw of the lifting mechanism; the hydraulic control part includes the oil tank, hydraulic pump, hydraulic circuit pipeline, control valve group and hydraulic cylinder. Through the combined movement of the mechanical part and the hydraulic part, the non-destructive disassembly of the differential is realized. The central axis is used for positioning and restriction, the bolt disassembly wrench is used for disassembly, and the mechanical claw of the lifting mechanism is used to grab the left case of the differential. , to complete the separation. The invention solves the problems of original dismantling means, large damage, low efficiency and high labor intensity in remanufacturing, and integrates dismantling tools to achieve high efficiency, high quality, energy saving, material saving and environmental protection.

Description

Auxiliary dismantling device for differential dismantling

technical field

The invention relates to a dismantling tool for a factory assembly line, in particular to an auxiliary dismantling device for dismantling a differential.

Background technique

At present, when dismantling differentials in many differential remanufacturing factories, the dismantling methods used are low in efficiency, primitive in dismantling means, and cause great damage. Labor costs are high.

Contents of the invention

The purpose of the present invention is to provide an auxiliary dismantling device for dismantling a differential, which can solve the problems of original, large damage, low efficiency and high labor intensity in dismantling and dismantling of a differential in remanufacturing, and has high efficiency and high quality. , Energy saving and material saving, environmental protection.

The present invention achieves the above object through the following technical solutions: an auxiliary dismantling device for dismantling a differential, including a mechanical part and a hydraulic control part, and the specific structure and connection relationship are as follows:

The mechanical part includes a dismantling mechanism assembly frame, a lifting sleeve, a central shaft, a bolt dismantling wrench, a lifting mechanism mechanical claw and an external pipeline of a hydraulic circuit, and the bolt dismantling wrench is installed in the dismantling mechanism assembly frame. The sleeve is set outside the central shaft. One end of the central shaft is installed in the assembly frame of the dismantling mechanism, and one end protrudes outward. One end of the outer pipe of the hydraulic circuit is connected with the central shaft and the lifting sleeve, and the other end is connected with the The hydraulic control part is connected, the bolt dismantling wrench and the mechanical claw of the lifting mechanism are installed on the lifting sleeve, the mechanical claw of the lifting mechanism closes as the lifting sleeve descends, and opens as the lifting sleeve rises.

The hydraulic control part includes a fuel tank, a filter, a hydraulic pump, a pressure pipe, a pressure branch pipe, an overflow valve, a first oil return pipe, a second oil return pipe, a third oil return pipe, an on/off valve, an on/off control lever, a throttling Valve, reversing valve, reversing control rod, piston and hydraulic cylinder, the filter is soaked in the liquid in the fuel tank, the overflow valve communicates with the liquid in the fuel tank through the first oil return pipe, and the overflow valve is connected to the oil tank through the pressure branch pipe On the pressure pipe, one end of the pressure pipe is connected to the hydraulic pump, and the other end is connected to the on-off valve. The throttle valve is installed between the on-off valve and the reversing valve. The oil return pipe is connected with the fuel tank, the reversing valve is connected with the fuel tank through the third oil return pipe, the reversing control rod is installed in the reversing valve, the hydraulic cylinder is connected with the reversing valve, and the piston is installed in the hydraulic cylinder.

The bolt dismantling wrench and the mechanical claw of the lifting mechanism are connected to the lifting sleeve in an orthogonal structure.

The central shaft is embedded in the lifting sleeve and can move up and down. The mechanical claws of the lifting mechanism are hinged on the lifting sleeve in the form of slider movement. When the slider moves up and down, the lifting mechanical claws can be opened and closed respectively.

Working principle and process:

The hydraulic pump provides power for the entire hydraulic system, and the hydraulic device controls the movement of the lifting mechanism, the bolt dismantling wrench and the central shaft, and its movement track is controlled by the hydraulic central control system. When the half-shaft gear comes into contact with the half-shaft gear, the center shaft stops moving and is locked; then the control bolt disassembly wrench is aimed downward at the nut, and after a set of nuts is disassembled, the disassembly of the next set of alignment nuts is automatically carried out. When the nut is completely disassembled, the mechanical claw of the lifting mechanism and the lifting device move upward at the same time, lift the left case of the differential to a certain height and stop, and complete the separation and disassembly of the left and right cases of the differential.

The central shaft is sleeved in the lifting sleeve. When the mechanical claw of the lifting mechanism grabs the left case of the differential upward, it not only plays a positioning role, but also restricts the upward movement of the planetary gear and the cross shaft in the differential, so that It stays in the right shell, which is convenient for workers to take away.

The mechanical claw of the lifting mechanism is installed on the lifting sleeve outside the central shaft, the mechanical claw of the lifting mechanism is opened when the sleeve is lowered, and the mechanical claw of the lifting mechanism is closed when the sleeve is lowered, and is used to grab the left shell of the differential .

Outstanding technical effects of the present invention are:

1. The bolt dismantling wrench, the mechanical claw of the lifting mechanism, and multiple tools for positioning the central axis are integrated together to facilitate centralized dismantling.

2. Using the organic combination of mechanical parts and hydraulic control parts, it meets the technical conditions and material requirements of most remanufacturing factories. Since the dismantled differential is separated in the vertical direction, the dismantling process is reduced as much as possible. secondary loss.

3. Reduce manual participation, making it possible to disassemble the differential on an automated, mechanized and efficient assembly line.

Description of drawings

Fig. 1 is a structural schematic diagram of an auxiliary dismantling device for dismantling a differential according to the present invention.

Fig. 2 is a hydraulic transmission diagram of the auxiliary dismantling device for dismantling the differential according to the present invention.

detailed description

The technical solutions of the present invention will be further described below through the accompanying drawings and embodiments.

As shown in Figure 1 and Figure 2, the auxiliary dismantling device for dismantling the differential according to the present invention includes a mechanical part and a hydraulic control part, and the specific structure and connection relationship are as follows:

The mechanical part includes a dismantling mechanism assembly frame 1, a lifting sleeve 2, a central shaft 3, a bolt dismantling wrench 4, a lifting mechanism mechanical claw 5 and a hydraulic circuit external pipeline 6. The hydraulic control part and the bolt dismantling wrench 4 are installed in the general assembly frame 1 of the dismantling mechanism, and one end of the central axis 3 is installed in the general assembly frame 1 of the dismantling mechanism, and one end protrudes outwards. The central shaft 3 is covered with the lifting sleeve 2, and one end of the hydraulic circuit outer pipeline 6 is connected with the central shaft 3 and the lifting sleeve 2, and the other end is connected with the hydraulic control part in the assembly frame 1 of the dismantling mechanism. The bolt dismantling wrench 4 is installed on the lifting sleeve 2 orthogonally with the lifting mechanism mechanical claw 5, and the lifting mechanism mechanical claw 5 is closed with the lifting sleeve 2 descending, and the lifting sleeve 2 rises and opens.

The hydraulic control part consists of a fuel tank 7, a filter 8, a hydraulic pump 9, a pressure pipe 10, a pressure branch pipe 11, an overflow valve 12, a first oil return pipe 13, a second oil return pipe 16, a third oil return pipe 20, start-stop Valve 14, start-stop control rod 15, throttle valve 17, reversing valve 18, reversing control rod 19, piston 21 and hydraulic cylinder 22 form. The filter 8 is immersed in the liquid in the oil tank, the overflow valve 12 communicates with the liquid in the oil tank 7 through the first oil return pipe 13, the overflow valve 12 is connected to the pressure pipe 10 through the pressure branch pipe 11, and one end of the pressure pipe 10 is connected to the hydraulic pressure pipe 10. The other end of the pump 9 is connected with an on-off valve 14. Throttle valve 17 is between on-off valve 14 and reversing valve 18, and on-off control rod 15 is installed in on-off valve 14, and on-off valve 14 is connected with fuel tank through second oil return pipe 16, and reversing valve 18 is passed through the first The three oil return pipes 20 are connected to the oil tank, and the reversing control rod 19 is installed in the reversing valve 18 . The hydraulic cylinder 22 is connected with the reversing valve 18, and the piston 21 is installed in the hydraulic cylinder 22.

The working principle and process of the auxiliary dismantling device for dismantling the differential according to the present invention:

The hydraulic pump provides power for the entire hydraulic system, and the hydraulic device controls the movement of the lifting mechanism, the bolt dismantling wrench and the central shaft, and its movement trajectory is controlled by the hydraulic central control system. The side gear, when it touches the side gear, the central shaft 3 stops moving and locks; then control the bolt disassembly wrench 4 to align the nuts downward, and after a group of nuts are disassembled, the next group of alignment nuts will be disassembled automatically. Solution, when the nut is completely disassembled, the mechanical claw 5 of the lifting mechanism and the lifting sleeve 2 move upward at the same time, lift the left case of the differential to a certain height and stop, and complete the separation and disassembly of the left and right cases of the differential.

The hydraulic pump 9 is powered by the motor to drive it to rotate, absorb oil from the oil tank 7, and suck it into the hydraulic pump 9 through the filter 8 through the oil pipe. The oil is pressurized by the hydraulic pump 9 and output to the pressure pipe 10. Throttle valve 17, through the selection of reversing valve 18, the oil enters the lower part of hydraulic cylinder 22, pushes the piston to move upward to drive the lifting sleeve 2 to rise, and the upper oil of hydraulic cylinder 22 returns to the oil tank 7 through the oil return pipe 20 . When the lifting sleeve 2 needs to be lowered, it is only necessary to change the reversing control rod 19 to change the oil passage of the reversing valve 18, so that the oil can enter from the upper part of the hydraulic cylinder 22, thereby pushing the piston down to drive the lifting sleeve 2 down . To stop the lifting sleeve 2 at a certain position, it is only necessary to move the reversing control rod 19 downward when it moves to the predetermined position, and seal the oil return pipe 20, and the oil in the pressure pipe 10 will pass through the overflow valve. 12 and the first oil return pipe 13 are discharged back to the oil tank 7, and are not sent to the hydraulic cylinder 22. At this moment, the workbench stops moving, and the system maintains a constant pressure. When it is time to stop, just move the start-stop control lever 15 to the left, and the oil in the pressure pipe 10 will be discharged back to the oil tank 7 through the start-stop valve 14 and the oil return pipe 16, and will not be sent to the hydraulic cylinder 22. At this time The worktable just stops moving, and the oil liquid output by the hydraulic pump 9 directly flows back to the oil tank 7, so that the hydraulic system is partially unloaded.

Claims (3)

1. the auxiliary disassembling apparatus that a differential mechanism is disassembled, including mechanical part and hydraulic control portion, it is characterized in that, concrete structure and annexation be: described mechanical part includes that disassembling mechanism always shelves, jacking sleeve, central shaft, spanner disassembled by bolt, lifting mechanism gripper and hydraulic circuit Outer Tube, described bolt is disassembled spanner and is arranged on and disassembles in mechanism always shelves, jacking sleeve is enclosed within outside central shaft, central shaft one end is arranged on disassembles in mechanism always shelves, one end is protruding, hydraulic circuit Outer Tube one end is connected with central shaft and jacking sleeve, the other end with disassemble mechanism and always shelve interior hydraulic control portion and be connected, bolt is disassembled spanner and is arranged on jacking sleeve with lifting mechanism gripper, lifting mechanism gripper declines Guan Bi along with jacking sleeve, rise along with jacking sleeve and open,

Described hydraulic control portion includes fuel tank, filter, hydraulic pump, manometer tube, unit penstock, overflow valve, first oil return pipe, second oil return pipe, 3rd oil return pipe, start-stop valve, start-stop controls bar, choke valve, reversal valve, reversing control lever, piston and hydraulic cylinder, in described filter soak liquid in fuel tank, overflow valve is by the first oil return pipe and fluid communication in fuel tank, overflow valve is connected on manometer tube by unit penstock, manometer tube one terminates hydraulic pump, the other end connects start-stop valve, choke valve is arranged between start-stop valve and reversal valve, start-stop controls bar and is arranged in start-stop valve, start-stop valve is connected with fuel tank by the second oil return pipe, reversal valve is connected with fuel tank by the 3rd oil return pipe, reversing control lever is arranged in reversal valve, hydraulic cylinder is connected with reversal valve, piston is arranged in hydraulic cylinder.

2. the auxiliary disassembling apparatus that differential mechanism as claimed in claim 1 is disassembled, it is characterised in that described bolt is disassembled spanner and is connected on jacking sleeve by orthohormbic structure with lifting mechanism gripper.

3. the auxiliary disassembling apparatus that differential mechanism as claimed in claim 1 is disassembled, it is characterized in that, described central shaft is embedded in jacking sleeve, can move up and down, lifting mechanism gripper is hinged on jacking sleeve in slide block movement mode, when slide block moves up and down, the gripper that hoists can be opened respectively or close.