CN204381796U - Mobile hydraulic integral wheel pin demountor - Google Patents

Abstract

The utility model relates to a mobile hydraulic comprehensive wheel pin removal machine, which is characterized in that: a wheel removal part and a pin removal part are arranged in cooperation with a tension jack (4), and the tension jack (4) is controlled by an outer cylinder ( 5), middle cylinder (6), inner column (7), front screw plug (8), rear screw plug (9), front end cover (10), rear end cover (11), piston (12), nut (13 ), the oil inlet joint (14), and the wheel removal part includes a pull claw (15), a triangular bottom plate (16), a guide block (17), an adjusting screw (18), a tension screw (19), a triangular Cross arm (20), long screw rod with handle (21), screw sleeve (22) and shield (24), and the described dismantling parts are composed of top cylinder (30), welding nut (31), transition screw rod (32 ), a long screw (21), and a screw sleeve (22). The utility model can realize one machine with multiple functions, and can not only disassemble pin shaft parts of various specifications, but also disassemble rigid wheel parts of various specifications.

Description

Mobile hydraulic integrated wheel pin removal machine

technical field

The utility model belongs to the technical field of mechanical equipment, in particular to a mobile hydraulic comprehensive wheel pin removal machine.

Background technique

With the rapid development of coal, shipbuilding, electric power and other industries and the improvement of the design and manufacturing level of mechanical products, there are more and more types of large equipment, and the specifications of connecting pins, transmission wheels, couplings, bearings, etc. Also getting bigger and bigger. During the maintenance of large equipment, the disassembly of these parts has become a very difficult problem. Conventional pin pullers and wheel pullers have single functions, poor comprehensiveness and versatility, many manual operation procedures, low work efficiency, and time-consuming and labor-intensive work. Therefore develop a kind of special equipment to solve this difficult problem, all have practical significance to the maintenance of coal mine, ship, electric equipment and other heavy mechanical equipment.

Contents of the invention

The purpose of this utility model is to aim at the deficiencies of the above-mentioned current technology, and provide a mobile hydraulic integrated hydraulic system that can realize multiple functions of one machine, and can not only disassemble pin shaft parts of various specifications, but also disassemble rigid wheel parts of various specifications. Wheel pin removal machine. The technical solution adopted to realize the purpose of this utility model is: a mobile hydraulic integrated wheel pin removal machine, including a pneumatic hydraulic pump, a hydraulic crane arm, a hydraulic crane, a tension jack, and the tension jack is fixed on the hydraulic crane arm. It can move together with the hydraulic crane, and it is characterized in that: it is equipped with a wheel removal part and a pin removal part in cooperation with the tension jack, and the tension jack is composed of an outer cylinder, a middle cylinder, an inner column, a front screw plug, and a rear screw. Plug, front end cover, rear end cover, piston, nut, oil inlet joint, etc., the outer cylinder and inner column are connected as a whole through the rear end cover, rear screw plug and nut, and the front end cover, front screw plug and seal are connected by threads The outer cylinder is connected as a whole; the middle cylinder and the piston are connected as a whole through threads, and the high-pressure oil generated by the pneumatic hydraulic pump enters the front and back of the piston through the oil pipe and the oil inlet joint, so that the outer cylinder and the inner column move relative to the middle cylinder, thereby driving the pulley or the movement of the special parts of the pin; the wheel removal part includes a pull claw, a triangular bottom plate, a guide block, an adjustment screw, a tension screw, a triangular cross arm, a long screw, a screw sleeve, a handle and a shield. The claws are installed into the corresponding guide grooves of the triangular bottom plate through three guide blocks, and the guide block is connected with the triangular bottom plate by screws. For the opening size of the claw, there is a scale on the front surface of the triangular bottom plate. The number corresponding to the scale is the diameter of the claw opening, and the number in parentheses is the diameter of the wheel to be removed. The triangular bottom plate is threadedly connected with the triangular cross arm through three tensile screws and ensures that the triangular bottom plate is parallel to the triangular cross arm. The three tension screws are matched with the bearing holes of the jack fixing base and the jack fixing gland respectively, and are fixed by six set screws, so that the wheel removal part is fixed with the outer cylinder of the jack, and the screw sleeve is connected with the middle cylinder of the jack through two screws. Fixed together, the long screw rod with handle is screwed into the screw sleeve through the center hole of the jack, and the front end of the long screw rod is in contact with the supporting shaft end of the rigid wheel to be disassembled. The outer cylinder of the jack moves outward, driving the triangular cross arm, tension screw, triangular bottom plate, pulling claws and rigid wheels to move. At the same time, the hydraulic crane also moves accordingly. The shield acts as a safety protection. It must be covered when working to ensure safety.

The pin removal part is composed of a jack cylinder, a welding nut, a transition screw, a long screw rod, and a screw sleeve. The front end of the jack cylinder is in contact with the end face of the bearing hole to be pinned off, and the rear end is inserted into the inner hole of the inner column of the jack to move relatively. , (the shoulder of the top cylinder is always in close contact with the front end of the middle cylinder). The welding nut (select the appropriate nut specification according to the diameter of the pin to be disassembled, the fit and the tension value of the thread, etc.) and the end face of the pin to be dismantled are welded together, the front end of the transition screw is screwed into the weld nut, and the rear end is connected to the The long screw is threaded, and the screw is set in the inner hole of the inner column at the rear end of the jack. The long screw is first screwed into the screw and then connected with the transition screw. When the outer cylinder moves backward, the screw sleeve and the long screw move outward together, and the long screw pulls the pin through the transition screw and the welding nut to move outward. At the same time, the hydraulic crane also moves accordingly.

The utility model can realize one machine with multiple functions, and can not only dismantle pin shaft parts of various specifications, but also rigid wheel parts of various specifications; the device has the characteristics of simple structure, convenient use, and mobility.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the tension jack and the wheel removal parts in the utility model;

Fig. 3 is a schematic structural view of the tension jack and the pin removal parts in the utility model;

Fig. 4 is the structural representation of guide block in the utility model;

Fig. 5 is the front view of the pulling claw in the utility model;

Fig. 6 is a top view of the pulling claw in the utility model;

Fig. 7 is a side view of the pulling claw in the utility model;

Fig. 8 is a structural schematic diagram of a triangular bottom plate in the utility model;

Fig. 9 is the front view of the schematic diagram of the triangular cross-arm structure in the utility model;

Fig. 10 is a side view of a schematic diagram of a triangular cross-arm structure in the present invention.

In the figure, 1. Pneumatic hydraulic pump, 2. Hydraulic crane arm, 3. Manual hydraulic crane, 4. Tension jack, 5. Outer cylinder, 6. Middle cylinder, 7. Inner column, 8. Front screw plug, 9. Rear plug, 10, front end cover, 11, rear end cover, 12, piston, 13, nut, 14, oil inlet joint, 15, pull claw, 16, triangular bottom plate, 17, guide block, 18, adjusting screw, 19 , tension screw, 20, triangular cross arm, 21, long screw, 22, screw sleeve, 23, guide groove, 24, shield, 25, screw, 26, jack fixed base, 27, jack fixed gland, 28, Tightening nut, 29, screw, 30, top cylinder, 31, welding nut, 32, transition screw rod. the

Detailed ways

With reference to the accompanying drawings, a mobile hydraulic integrated wheel pin removal machine includes a pneumatic hydraulic pump 1, a hydraulic crane arm 2, a hydraulic crane 3, and a tension jack 4. The tension jack 4 is fixed on the hydraulic crane arm 2 and can be The hydraulic crane 3 moves together, and it is characterized in that: a wheel removal part and a pin removal part are arranged in cooperation with the tension jack 4, and the tension jack 4 is composed of an outer cylinder 5, a middle cylinder 6, an inner column 7, and a front screw plug 8 , rear screw plug 9, front end cover 10, rear end cover 11, piston 12, nut 13, oil inlet joint 14, etc., outer cylinder 5 and inner column 7 are connected by rear end cover 11, rear screw plug 9 and nut 13 In one body, the front end cover 10, the front screw plug 8 and the sealing member are connected with the outer cylinder 5 through threads; Before and after entering the piston 12, the outer cylinder 5, the inner column 7, etc. are relatively moved with the middle cylinder 6, thereby driving the special parts for removing the wheel or pin to move; 17. Adjusting screw 18, tension screw 19, triangular cross arm 20, long screw 21, screw sleeve 22, and shield 24, three pull claws 15 are installed into corresponding guide grooves of triangular bottom plate 16 through three guide blocks 17 23, the guide block 17 is integrated with the triangular bottom plate 16 through the screw 25, and the pull claw 15 can move in the guide groove 23 of the triangular bottom plate 16 by adjusting the screw rod 18, so that the opening of the pull claw 15 can be adjusted according to the size of the dismounted rigid wheel Dimensions, there is a scale on the front end of the triangular bottom plate, the number corresponding to the scale is the diameter of the claw opening, and the number in parentheses is the diameter of the wheel to be removed. The triangular bottom plate 16 is threadedly connected with the triangular cross-arm 20 through three tensile screws 19 and ensures that the triangular bottom plate 16 is parallel to the triangular cross-arm 20 . Three tension screw rods 19 cooperate with 26 bearing holes of the jack fixed base and 27 bearing holes of the jack fixed gland respectively and are fixed by six fastening nuts 28, so that the wheel removal parts and the jack outer cylinder 5 are fixed together, and the screw sleeve 22 passes through two Two screws 29 are fixed together with cylinder 6 in the jack, and the long screw rod 21 with handle is screwed in the screw sleeve 22 by the jack center hole, and the long screw rod 21 front ends contact with the supporting shaft end of the rigid wheel to be dismantled. Jack outer cylinder 5 moves outwards, drives triangular cross arm 20, bearing screw rod 19, triangular bottom plate 16, and pull claw 15 and rigid wheel move. Simultaneously, hydraulic crane 3 also moves accordingly. Shield 24 plays a role of safety protection. It must be covered when working to ensure safety.

The pin removal part is composed of a jack cylinder 30, a welding nut 31, a transition screw 32, a long screw rod 21, and a screw sleeve 22. The front end of the jack cylinder 30 is in contact with the end surface of the bearing hole to be pinned off, and the rear end is inserted into the inner column 7 of the jack. Relatively moveable in the inner hole of (jack cylinder 30 shaft shoulders and middle cylinder 6 front end faces are in close contact all the time). The welding nut 31 (select the appropriate nut specification according to the diameter of the pin to be disassembled, the fit and the tension value of the thread) and the end face of the pin to be dismantled are welded together, and the front end of the transition screw 32 is screwed into the welding nut 31, Rear end is threadedly connected with long screw rod 21, and screw sleeve 22 is contained in the jack rear end inner column 7 endopores, and long screw rod 21 is screwed in the screw sleeve 22 earlier and is connected with transition screw rod 32 again. When the outer cylinder 5 moved backward, the screw sleeve 22 and the long screw 21 moved outward together, and the long screw 21 moved outward by pulling the pin through the transition screw 32 and the welding nut 31 . At the same time, the hydraulic crane also moves accordingly.

The operating process of the present utility model is as follows:

Remove rigid wheels:

1. Move the demolition machine (including accessories) to the working place, move the pneumatic hydraulic pump from the hydraulic crane box cover to a safe place (the length of the oil pipe is 5 meters, it is strictly forbidden to operate the pneumatic hydraulic pump on the hydraulic crane box cover), and connect the compression Remove the air tube and return the jack cylinder back into place. Then, connect the removed wheel parts and accessories with the jack. According to the diameter of the rigid wheel to be removed, use an electric or pneumatic wrench according to the scale to adjust the opening size of the three claws to be larger than the diameter of the wheel. According to the height of the rigid wheel to be removed, pull the hydraulic pump lever by hand to supply oil to the hydraulic cylinder. , to realize the extension of the piston rod of the hydraulic cylinder, so that the whole dismantling machine rises as a whole, until the center of the long screw basically coincides with the center of the wheel to be dismantled.

2. According to the size of the working space, adjust the maximum reach of the front wheel. At this time, use an electric or pneumatic wrench to turn the ball screw located in the center of the front beam to make the ball bearing contact the ground and make the two front wheels leave the ground, loosen the front wheel arm set screw, and adjust the distance between the two front wheels to reach the maximum. . Then, tighten the front wheel arm set screw.

3. Push the entire dismantling machine to move the claws to the outer circle of the wheel to be disassembled, and adjust the screw rods to make the shafts of the three claws contact the outer circle of the wheel to be disassembled according to the size scale in the brackets (to ensure that the three pullers are in contact with the outer circle of the wheel to be disassembled The inner end of the claw rod body is basically on the same scale value, otherwise, the position of the wheel removal part should be adjusted), then, turn the long screw to make the front end contact with the supporting shaft end of the rigid wheel to be removed and tighten the front end of the claw Contact and press the end face of the wheel to be removed. At this time, if the universal wheel of the hydraulic crane leaves the ground or interferes with the ground due to uneven ground or the axis of the wheel to be dismantled is not parallel to the ground, you can loosen the oil return switch of the manual hydraulic pump by hand so that the position of the dismantling machine is adjusted according to the triangular bottom plate. The positions determined by the assembly and the rigid wheel to be removed are readjusted once. Then, tighten the oil return switch of the manual hydraulic pump (be sure to turn off the oil return switch of the manual hydraulic pump when the wheel is about to be disengaged from the support shaft, otherwise, safety accidents will occur).

4. Cover the wheel removal parts with the safety shield, just in case, to ensure personal safety.

5. Operate the pneumatic hydraulic pump to supply oil to the jack. The outer cylinder of the jack, the triangular cross arm, the inner column and the hydraulic crane move outward relative to the middle cylinder together, and the middle cylinder, the long screw and the shaft supporting the wheel to be removed remain relatively stationary ( Removing rigid wheels for large equipment) so that the wheels are pulled out. Manipulate the pneumatic hydraulic pump to reversely supply oil to the jack, so that the middle cylinder of the jack returns to the initial position relative to the outer cylinder, and a working cycle ends. If the rigid wheel is relatively thick and cannot be completely pulled out in one stretch, push the hydraulic crane to move in the direction of the wheel to be removed, and repeat the above actions until the wheel is removed. Then, unscrew the oil return switch of the manual hydraulic cylinder, and lower the demolition machine to the bottom to contact the rubber block. At this point, the movable dismantling machine leaves the working place to remove the wheels.

To remove the rigid pin:

1. First, connect the dismantling machine according to the dismantling working conditions. Then, according to the diameter of the pin to be disassembled, the fit and the tension of the thread (the thread withstands the tension value of about M30: 50-55T, M36: 70-75T, M42: 95-100T, M48: 130-140T) and other conditions Select the appropriate specification of the weld nut, and weld it with the end face of the pin to be removed (use a special welding rod to make the strength of the weld be equal to or slightly lower than the strength of the weld nut) and screw the transition shaft corresponding to the weld nut into the weld nut .

2. Move the demolition machine (including accessories) to the working place, move the pneumatic hydraulic pump from the hydraulic crane box cover to a safe place (the length of the oil pipe is 5 meters, it is strictly forbidden to operate the pneumatic hydraulic pump on the hydraulic crane box cover), and connect the compression Remove the air tube and return the jack cylinder back into place. Then, insert the rear end of the jacking cylinder into the bearing hole of the inner column of the jack, and according to the height of the rigid pin to be removed, pull the hydraulic pump lever by hand to make the whole dismantling machine rise up to the center of the long screw rod (or the center of the jacking cylinder) until it basically coincides with the sub-center of the pin to be disassembled.

3. According to the size of the working space, adjust the maximum reach of the front wheel. At this time, use an electric or pneumatic wrench to turn the ball screw located in the center of the front beam to make the ball bearing contact the ground and make the two front wheels leave the ground, loosen the front wheel arm set screw, and adjust the distance between the two front wheels to reach the maximum. . Then, tighten the front wheel arm set screw.

4. Turn the long screw so that the front end of the long screw is screwed into the screw hole of the transition screw and tightened (it can be screwed in smoothly by fine-tuning the position of the hydraulic crane). Then, turn the screw sleeve to make it contact and compress the rear screw plug of the jack. At this time, if the universal wheel of the hydraulic crane leaves the ground or interferes with the ground due to uneven ground or the axis of the pin to be dismantled is not parallel to the ground, you can loosen the oil return switch of the manual hydraulic pump by hand so that the position of the dismantling machine is adjusted according to the position of the jack cylinder. Readjust once with the position determined by the rigid pin to be removed. Then, tighten the oil return switch of the manual hydraulic pump (be sure to turn off the oil return switch of the manual hydraulic pump when the wheel is about to be disengaged from the support shaft, otherwise, safety accidents will occur).

5. Operate the pneumatic hydraulic pump to supply oil to the jack. The outer cylinder of the jack, the long screw, the screw sleeve, the inner column and the hydraulic crane move outward relative to the middle cylinder. The middle cylinder, the top cylinder and the bearing hole supporting the pin to be removed The body is relatively immobile (removing rigid pins of large equipment), so that the pins are pulled out. Manipulate the pneumatic hydraulic pump to reversely supply oil to the jack, so that the middle cylinder of the jack returns to the initial position relative to the outer cylinder, and a working cycle ends. If the rigid pin is relatively long and cannot be completely pulled out in one stretch, push the hydraulic crane to move toward the pin to be removed, and then turn the screw sleeve to make it contact and compress the rear screw plug of the jack. Repeat the above actions until the pin is removed. Then, unscrew the oil return switch of the manual hydraulic cylinder, and lower the demolition machine to the bottom to contact with the block block. At this time, the movable dismantling machine leaves the working place to remove the pins.

Claims (1)

1. a mobile hydraulic integral wheel pin demountor, include air-driven hydraulic pump (1), hydraulic crane arm (2), hydraulic crane (3), stretch-draw jack (4), stretch-draw jack (4) is fixed on hydraulic crane arm (2), can move with hydraulic crane (3), it is characterized in that: coordinate to be provided with stretch-draw jack (4) and tear wheel component open and tear pin parts open, described stretch-draw jack (4) is by outer shell (5), middle cylinder (6), inner prop (7), front screw plug (8), rear spiral wall (9), drive end bearing bracket (10), rear end cap (11), piston (12), nut (13), fuel inlet fitting (14) forms, outer shell (5) and inner prop (7) are by rear end cap (11), rear spiral wall (9) and nut (13) are connected as a single entity, drive end bearing bracket (10), front screw plug (8) and seal are connected as a single entity by screw thread and outer shell (5), middle cylinder (6) and piston (12) are connected as a single entity by screw thread, described wheel component of tearing open includes pulling claw (15), cam base plate (16), guide pad (17), adjustment screw rod (18), bear screw rod (19), triangle cross-arm (20), band handle long bolt (21), swivel nut (22) and guard shield (24) composition, three pulling claws (15) are loaded by three guide pads (17) in the corresponding gathering sill (23) of cam base plate (16), guide pad (17) is connected as a single entity by screw (25) and cam base plate (16), pulling claw (15) can be moved by adjustment screw rod (18) in cam base plate (16) gathering sill (23), so that the opening dimension of size adjustment pulling claw (15) according to dismounting rigid wheel, cam base plate (16) front end face there is scale, cam base plate (16) bears screw rod (19) with triangle cross-arm (20) with being threaded and ensureing that cam base plate (16) is parallel with triangle cross-arm (20) by three, three bear screw rod (19) and join merga pass six clamp nuts (28) fixing respectively with jack firm banking (26) bearing bore and jack stationary gland (27) bearing bore, make to tear wheel component open and jack outer shell (5) is fixed together, swivel nut (22) is fixed together by two screws (29) and cylinder (6) in jack, long bolt (21) with handle is screwed in swivel nut (22) by jack centre bore, described tears pin parts open by pushing up cylinder (30), welded nut (31), transition screw rod (32), long bolt (21), swivel nut (22) forms, the bearing bore body end contact of cylinder (30) front end, top and pin to be torn open, can relative movement in the endoporus that jack inner prop (7) is inserted in rear end, welded nut (31) is together with pin end face weld to be torn open, transition screw rod (32) front end is screwed in welded nut (31), rear end is threaded with long bolt (21), swivel nut (22) is contained in inner prop (7) endoporus of jack rear end.