Hydraulic wheel puller suitable for multiple types of motors

Abstract

The utility model provides a hydraulic wheel puller suitable for multiple types of motors, which belongs to the technical field of wheel pullers and comprises a fixed seat, a disassembly platform, a horizontal slide rail, a lifting support leg, a hydraulic table, a hydraulic operation table, a pull claw extending port, a support platform, a bidirectional hydraulic system and a puller structure. The locking ring is of a conical hollow structure, so that an opening formed by a plurality of puller grippers can be adjusted, and wheels with different sizes can be adapted; a hydraulic inner cylinder piston is arranged in the hydraulic inner cylinder, one side of the hydraulic inner cylinder piston is connected with an inner cylinder push rod, and the inner cylinder push rod abuts against a fixing shaft located in the center of the wheel, so that more labor is saved when the puller gripper pulls out the wheel from the fixing shaft; the height of the dismounting platform can be adjusted under the driving of the lifting supporting legs; the dismounting platform is in sliding connection with the horizontal sliding rail, the dismounting platform can horizontally slide along the horizontal sliding rail, the horizontal distance between the dismounting platform and the puller structure is adjusted, and the wheels can be arranged to be in butt joint with the puller structure conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of pullers, and in particular relates to a hydraulic puller suitable for multiple types of motors. Background Art

[0002] In the traditional repair and maintenance of electric motors, generators and other rotating equipment, the wheel needs to be disassembled when the bearing or sealing accessories need to be replaced. The disassembly process requires a two-jaw puller or a three-jaw puller. Sometimes it is necessary to use heating and sledgehammers to knock the wheels to disassemble them. Sometimes it is necessary to make force tools on site according to the size of the disassembled wheel, and then use a hydraulic jack for disassembly. During the disassembly process, accidents in which people are hit by objects and mechanically injured often occur.

[0003] Problems:

[0004] 1. After the size of the motor is determined, the traditional puller needs to adjust the distance between the two or three claws according to the size and thickness of the wheel.

[0005] 2. Traditional two-claw or three-claw pullers use the rotation of the lead screw as the power, and require manual rotation with a wrench to obtain forward thrust.

[0006] 3. The two-claw or three-claw handle wheel device is heavy and can easily injure your feet or cause mechanical injuries during transportation or docking with the corresponding wheel.

[0007] 4. The pulled wheels are of different sizes, so different pullers need to be replaced. The maintenance workshop needs to be equipped with several pullers of different sizes, which increases the cost.

[0008] 5. When using a two-claw or three-claw puller, if the wheel is particularly tight, the lead screw is easily damaged and the force is insufficient, which can easily cause difficulties in pulling the wheel. Utility Model Content

[0009] In view of the problems existing in the above-mentioned prior art, the utility model provides a hydraulic puller suitable for multiple models of electric motors. The technical problem to be solved by the utility model is to provide a hydraulic puller which can be adjusted according to the wheel size, saves labor, and can automatically achieve wheel docking.

[0010] In order to solve the above technical problems, the utility model provides a hydraulic puller suitable for multiple types of motors, including a fixed seat, a disassembly platform, a horizontal slide rail, a lifting leg, a hydraulic table, a hydraulic operating table, a claw extension port, a support platform, a bidirectional hydraulic system and a puller structure;

[0011] The fixed seat is provided with a claw extension opening for the puller structure to pass through; a support platform is provided on one side of the fixed seat, and a two-way hydraulic system for controlling the movement of the puller structure is provided on the support platform; a disassembly platform is provided on the other side of the fixed seat, and lifting legs are provided below the disassembly platform. Driven by the lifting legs, the height of the disassembly platform can be adjusted to facilitate the docking of the wheels arranged on the disassembly platform with the puller structure; the disassembly platform is slidably connected to the horizontal slide rail, and the disassembly platform can slide horizontally along the horizontal slide rail to adjust the horizontal distance between the disassembly platform and the puller structure, so that the wheels arranged on the disassembly platform can be docked with the puller structure;

[0012] The hydraulic platform is connected to the hydraulic operating platform through an oil pipe. The hydraulic operating platform includes a multi-way reversing valve. The multi-way reversing valve is respectively connected to the horizontal slide rail, the lifting leg, the puller structure and the two-way hydraulic system to realize the horizontal sliding of the disassembly platform along the horizontal slide rail, the height adjustment of the disassembly platform driven by the lifting leg, the locking of the puller structure and the telescopic control of the two-way hydraulic system.

[0013] Furthermore, the puller structure includes a pull rod, a puller gripper and a locking ring; the puller gripper is arranged at one end of the pull rod close to the disassembly platform, the locking ring is arranged on the outside of multiple pull rods, the pull rod is connected to the two-way hydraulic system, and under the drive of the two-way hydraulic system, the puller gripper extends from the extension port of the pull claw and contacts the wheel to be disassembled.

[0014] Furthermore, the locking ring is a conical hollow structure, and a plurality of grooves for the pull rods to pass through are provided on the locking ring along the circumferential direction, and the axes of the grooves are parallel to the outer surface of the conical hollow structure.

[0015] Furthermore, an end of the conical hollow structure with a relatively small diameter is arranged close to the fixing seat, and an end of the conical hollow structure with a relatively large diameter is arranged far away from the fixing seat.

[0016] Furthermore, the groove is trapezoidal and has a slope.

[0017] Furthermore, the number of the puller grips and the pull rods are both six, so that the force on the wheels is more balanced.

[0018] Furthermore, the bidirectional hydraulic system includes a hydraulic inner cylinder, a hydraulic outer cylinder and a fixed base, the hydraulic inner cylinder and the hydraulic outer cylinder are connected on the same side of the fixed base, and the hydraulic inner cylinder is arranged inside the hydraulic outer cylinder; a hydraulic outer cylinder piston is arranged between the hydraulic outer cylinder and the hydraulic inner cylinder, one side of the hydraulic outer cylinder piston is connected to the outer hydraulic cylinder push-pull hollow cylinder, one end of the outer hydraulic cylinder push-pull hollow cylinder is connected to the force-bearing end of the puller structure, the force-bearing end of the puller structure is connected to the pull rod of the puller structure, and the movement of the hydraulic outer cylinder piston can drive the pull rod to move, thereby realizing the docking and gripping of the puller gripper and the wheel.

[0019] Furthermore, a hydraulic inner cylinder piston is arranged inside the hydraulic inner cylinder, and one side of the hydraulic inner cylinder piston is connected to an inner cylinder push rod. The inner cylinder push rod can pass through the fixed seat and abut against the fixed shaft located at the center of the wheel.

[0020] Furthermore, the hydraulic inner cylinder is provided with an inner cylinder built-in oil passage, and the inner cylinder built-in oil passage is provided with a built-in inner cylinder oil passage inlet and outlet.

[0021] Furthermore, the multi-way reversing valve is a five-way manual reversing valve.

[0022] The utility model discloses a hydraulic puller suitable for various types of electric motors. The locking ring is provided with a conical hollow structure. A plurality of grooves for pulling rods to pass through are provided on the locking ring in a circumferential direction. The axis of the groove is parallel to the outer surface of the conical hollow structure. The groove is trapezoidal and has a certain slope. When the puller is pushed inward, the opening formed by the plurality of puller grippers increases. When the puller is pulled outward, the opening formed by the plurality of puller grippers decreases. The utility model can cope with wheels of different sizes. A hydraulic inner cylinder piston is provided inside the hydraulic inner cylinder. An inner cylinder push rod is connected to one side of the hydraulic inner cylinder piston. The inner cylinder push rod can pass through a fixed seat and then , counteracting the fixed shaft located at the center of the wheel, so that the fixed shaft is fixed when the wheel is pulled out, and the hydraulic outer cylinder piston moves in the direction away from the wheel, so that it is easier for the puller gripper to pull the wheel out from the fixed shaft; the disassembly platform, driven by the lifting legs, can adjust the height of the disassembly platform, so that the wheels set on the disassembly platform can be connected to the puller structure; the disassembly platform is slidably connected to the horizontal slide rail, and the disassembly platform can slide horizontally along the horizontal slide rail to adjust the horizontal distance between the disassembly platform and the puller structure, so that the wheels set on the disassembly platform can be connected to the puller structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the overall structure of a hydraulic puller suitable for various types of motors.

[0024] Figure 2 This is a schematic diagram of a bidirectional hydraulic system of a hydraulic puller suitable for multiple types of motors. Figure 1 .

[0025] Figure 3 This is a schematic diagram of a bidirectional hydraulic system of a hydraulic puller suitable for multiple types of motors. Figure 2 .

[0026] Figure 4 The utility model is a schematic diagram of a pull rod of a hydraulic puller suitable for various types of motors.

[0027] Figure 5 The utility model is a schematic diagram of a puller gripper of a hydraulic puller suitable for various types of motors.

[0028] Figure 6 The utility model is a schematic diagram of a puller structure of a hydraulic puller suitable for various types of motors.

[0029] Figure 7 The utility model is a schematic diagram of a locking ring of a hydraulic puller suitable for various types of motors.

[0030] The reference numerals are as follows:

[0031] 1. Fixed seat; 2. Disassembly platform; 3. Horizontal slide rail; 4. Lifting legs; 5. Hydraulic table; 6. Hydraulic operating table; 7. Pull claw extension port; 8. Support platform; 9. Bidirectional hydraulic system; 10. Puller structure; 101. Pull rod; 102. Puller gripper; 103. Locking ring; 901. First hydraulic outer cylinder oil inlet and outlet external interface; 902. Hydraulic outer cylinder piston; 903. External hydraulic cylinder push-pull hollow cylinder; 904. Second hydraulic outer cylinder oil inlet and outlet external interface; 905. Puller structure load-bearing end; 906. Hydraulic inner cylinder piston; 907. Inner cylinder push rod; 908. Built-in inner cylinder oil circuit inlet and outlet; 909. Inner oil cylinder built-in oil circuit channel; 910. First hydraulic inner cylinder oil inlet and outlet external interface; 911. Second hydraulic inner cylinder oil inlet and outlet external interface; 912. Fixed base. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In order to better understand the purpose, structure and function of the utility model, the hydraulic puller suitable for various types of motors of the utility model is further described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1:

[0037] like Figure 1 As shown, the utility model is a hydraulic puller suitable for various types of motors, comprising a fixing seat 1, a disassembly platform 2, a horizontal slide rail 3, a lifting leg 4, a hydraulic platform 5, a hydraulic operating platform 6, a claw extension port 7, a supporting platform 8, a bidirectional hydraulic system 9 and a puller structure 10;

[0038] The fixed seat 1 is provided with a claw extension opening 7 for the puller structure 10 to pass through; a support platform 8 is provided on one side of the fixed seat 1, and a two-way hydraulic system 9 for controlling the movement of the puller structure 10 is provided on the support platform 8; a disassembly platform 2 is provided on the other side of the fixed seat 1, and a lifting leg 4 is provided below the disassembly platform 2. Driven by the lifting leg 4, the height of the disassembly platform 2 can be adjusted to facilitate the docking of the wheels arranged on the disassembly platform 2 with the puller structure 10; the disassembly platform 2 is slidably connected to the horizontal slide rail 3, and the disassembly platform 2 can slide horizontally along the horizontal slide rail 3 to adjust the horizontal distance between the disassembly platform 2 and the puller structure 10, so that the wheels arranged on the disassembly platform 2 can be docked with the puller structure 10;

[0039] The hydraulic platform 5 is connected to the hydraulic operating platform 6 through an oil pipe. The hydraulic operating platform 6 includes a multi-way reversing valve, which is respectively connected to the horizontal slide rail 3, the lifting leg 4, the puller structure 10 and the two-way hydraulic system 9, so as to realize the horizontal sliding of the disassembly platform 2 along the horizontal slide rail 3, realize the height adjustment of the disassembly platform 2 driven by the lifting leg 4; realize the locking of the puller structure 10; and realize the telescopic control of the two-way hydraulic system 9.

[0040] Embodiment 2:

[0041] like Figure 1 As shown, the utility model is a hydraulic puller suitable for various types of motors, comprising a fixing seat 1, a disassembly platform 2, a horizontal slide rail 3, a lifting leg 4, a hydraulic platform 5, a hydraulic operating platform 6, a claw extension port 7, a supporting platform 8, a bidirectional hydraulic system 9 and a puller structure 10;

[0042] The fixed seat 1 is provided with a claw extension opening 7 for the puller structure 10 to pass through; a support platform 8 is provided on one side of the fixed seat 1, and a two-way hydraulic system 9 for controlling the movement of the puller structure 10 is provided on the support platform 8; a disassembly platform 2 is provided on the other side of the fixed seat 1, and a lifting leg 4 is provided below the disassembly platform 2. Driven by the lifting leg 4, the height of the disassembly platform 2 can be adjusted to facilitate the docking of the wheels arranged on the disassembly platform 2 with the puller structure 10; the disassembly platform 2 is slidably connected to the horizontal slide rail 3, and the disassembly platform 2 can slide horizontally along the horizontal slide rail 3 to adjust the horizontal distance between the disassembly platform 2 and the puller structure 10, so that the wheels arranged on the disassembly platform 2 can be docked with the puller structure 10;

[0043] The hydraulic platform 5 is connected to the hydraulic operating platform 6 through an oil pipe. The hydraulic operating platform 6 includes a multi-way reversing valve, which is respectively connected to the horizontal slide rail 3, the lifting leg 4, the puller structure 10 and the two-way hydraulic system 9, so as to realize the horizontal sliding of the disassembly platform 2 along the horizontal slide rail 3, realize the height adjustment of the disassembly platform 2 driven by the lifting leg 4; realize the locking of the puller structure 10; and realize the telescopic control of the two-way hydraulic system 9.

[0044] The difference between this embodiment and the first embodiment is that:

[0045] like Figure 4 , Figure 5 , Figure 6 and Figure 7 The puller structure 10 includes a pull rod 101, a puller gripper 102 and a locking ring 103; the puller gripper 102 is arranged at one end of the pull rod 101 close to the disassembly platform 2, and the locking ring 103 is sleeved on the outside of multiple pull rods 101. The pull rod 101 is connected to the two-way hydraulic system 9. Driven by the two-way hydraulic system 9, the puller gripper 102 extends from the claw extension port 7 and contacts the wheel to be disassembled.

[0046] Preferably, the number of the puller grips 102 and the number of the pull rods 101 are both 6, so that the force on the wheels is more balanced.

[0047] The locking ring 103 is a conical hollow structure, and a plurality of grooves for the pull rod 101 to pass through are provided on the locking ring 103 along the circumferential direction. The axis of the groove is parallel to the outer surface of the conical hollow structure. The groove is trapezoidal and has a certain slope. When pushed inward, the opening formed by the plurality of puller grips 102 increases, and when pulled outward, the opening formed by the plurality of puller grips 102 decreases, so as to cope with wheels of different sizes.

[0048] like Figure 2 and Figure 3The bidirectional hydraulic system 9 includes a hydraulic inner cylinder and a hydraulic outer cylinder, which are connected to the same side of a fixed base 912, and the hydraulic inner cylinder is arranged inside the hydraulic outer cylinder; a hydraulic outer cylinder piston 902 is arranged between the hydraulic outer cylinder and the hydraulic inner cylinder, one side of the hydraulic outer cylinder piston 902 is connected to an outer hydraulic cylinder push-pull hollow cylinder 903, one end of the outer hydraulic cylinder push-pull hollow cylinder 903 is connected to a puller structure force end 905, and the puller structure force end 905 is connected to the pull rod 101 of the puller structure 10, and the movement of the hydraulic outer cylinder piston 902 can drive the pull rod 101 to move, so as to achieve the docking and gripping of the puller gripper 102 and the wheel;

[0049] The hydraulic outer cylinder is provided with a first hydraulic outer cylinder oil inlet and outlet external interface 901 and a second hydraulic outer cylinder oil inlet and outlet external interface 904;

[0050] A hydraulic inner cylinder piston 906 is arranged inside the hydraulic inner cylinder, and one side of the hydraulic inner cylinder piston 906 is connected to an inner cylinder push rod 907. The inner cylinder push rod 907 can pass through the fixing seat 1 and abut against the fixed shaft located at the center of the wheel, so that the fixed shaft is fixed when the wheel is pulled out, and the hydraulic outer cylinder piston 902 moves in a direction away from the wheel, so that the puller gripper 102 pulls the wheel out from the fixed shaft;

[0051] The hydraulic inner cylinder is provided with an inner cylinder built-in oil passage 909, and the inner cylinder built-in oil passage 909 is provided with a built-in inner cylinder oil passage inlet and outlet 908; the hydraulic inner cylinder is provided with a first hydraulic inner cylinder oil inlet and outlet external interface 910 and a second hydraulic inner cylinder oil inlet and outlet external interface 911.

[0052] The hydraulic platform 5 is connected to the hydraulic operating platform 6 through an oil pipe. The hydraulic operating platform 6 includes a multi-way reversing valve, which is respectively connected to the horizontal slide rail 3, the lifting leg 4, the puller structure 10 and the two-way hydraulic system 9, so as to realize the horizontal sliding of the disassembly platform 2 along the horizontal slide rail 3, realize the height adjustment of the disassembly platform 2 driven by the lifting leg 4; realize the locking of the puller structure 10; and realize the telescopic control of the two-way hydraulic system 9.

[0053] The multi-way reversing valve is a five-way manual reversing valve, the 1-way reversing valve controls the lifting leg 4; the 2-way reversing valve controls the horizontal movement of the disassembly platform 2; the 3-way reversing valve controls the locking of the locking ring 103; the 4-way reversing valve controls the hydraulic outer cylinder piston 902 of the hydraulic outer cylinder, thereby realizing the extension and retraction of the pull rod 101; the 5-way reversing valve controls the extension and retraction of the inner cylinder push rod 907 of the inner hydraulic inner cylinder.

[0054] The utility model is suitable for the use of a hydraulic puller of various types of motors as follows:

[0055] A motor drives the hydraulic station 5, and the hydraulic station 5 starts the multi-way reversing valve;

[0056] Driven by the lifting legs 4, the height of the disassembly platform 2 is adjusted, and the disassembly platform 2 slides horizontally along the horizontal slide rail 3 to adjust the horizontal distance between the disassembly platform 2 and the puller structure 10, so as to achieve the docking of the wheels on the disassembly platform 2 and the puller structure 10;

[0057] The movement of the hydraulic outer cylinder piston 902 drives the pull rod 101 to move, so as to achieve the docking and gripping of the puller gripper 102 and the wheel;

[0058] After the inner cylinder push rod 907 is able to pass through the fixing seat 1, it abuts against the fixed shaft located at the center of the wheel, and the hydraulic outer cylinder piston 902 moves in a direction away from the wheel, so that the puller gripper 102 pulls the wheel out of the fixed shaft.

[0059] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A hydraulic puller suitable for multiple types of motors, characterized in that: It includes a fixed seat, a disassembly platform, a horizontal slide rail, a lifting leg, a hydraulic table, a hydraulic operating table, a claw extension port, a support platform, a two-way hydraulic system and a puller structure; The fixed seat is provided with a claw extension opening for the puller structure to pass through; a support platform is provided on one side of the fixed seat, and a two-way hydraulic system for controlling the movement of the puller structure is provided on the support platform; a disassembly platform is provided on the other side of the fixed seat, and lifting legs are provided below the disassembly platform. Driven by the lifting legs, the height of the disassembly platform can be adjusted to facilitate the docking of the wheels arranged on the disassembly platform with the puller structure; the disassembly platform is slidably connected to the horizontal slide rail, and the disassembly platform can slide horizontally along the horizontal slide rail to adjust the horizontal distance between the disassembly platform and the puller structure, so that the wheels arranged on the disassembly platform can be docked with the puller structure; The hydraulic platform is connected to the hydraulic operating platform through an oil pipe. The hydraulic operating platform includes a multi-way reversing valve. The multi-way reversing valve is respectively connected to the horizontal slide rail, the lifting leg, the puller structure and the two-way hydraulic system to realize the horizontal sliding of the disassembly platform along the horizontal slide rail, the height adjustment of the disassembly platform driven by the lifting leg, the locking of the puller structure and the telescopic control of the two-way hydraulic system.

2. The hydraulic puller suitable for multiple types of motors according to claim 1, characterized in that: The puller structure includes a pull rod, a puller gripper and a locking ring; the puller gripper is arranged at one end of the pull rod close to the disassembly platform, the locking ring is sleeved on the outside of multiple pull rods, the pull rod is connected to the two-way hydraulic system, and driven by the two-way hydraulic system, the puller gripper extends from the extension port of the pull claw and contacts the wheel to be disassembled.

3. The hydraulic puller suitable for multiple types of motors according to claim 2, characterized in that: The locking ring is a conical hollow structure. A plurality of grooves for the pull rods to pass through are provided on the locking ring along the circumferential direction. The axes of the grooves are parallel to the outer surface of the conical hollow structure.

4. The hydraulic puller suitable for multiple types of motors according to claim 3, characterized in that: An end of the conical hollow structure with a relatively small diameter is arranged close to the fixing seat, and an end of the conical hollow structure with a relatively large diameter is arranged far away from the fixing seat.

5. The hydraulic puller suitable for multiple types of motors according to claim 4, characterized in that: The groove is trapezoidal and has a slope.

6. The hydraulic puller suitable for multiple types of motors according to claim 5, characterized in that: There are six puller grips and six pull rods, which makes the force on the wheels more balanced.

7. The hydraulic puller suitable for multiple types of motors according to claim 2, characterized in that: The bidirectional hydraulic system includes a hydraulic inner cylinder, a hydraulic outer cylinder and a fixed base. The hydraulic inner cylinder and the hydraulic outer cylinder are connected on the same side of the fixed base, and the hydraulic inner cylinder is arranged inside the hydraulic outer cylinder; a hydraulic outer cylinder piston is arranged between the hydraulic outer cylinder and the hydraulic inner cylinder, one side of the hydraulic outer cylinder piston is connected to the outer hydraulic cylinder push-pull hollow cylinder, one end of the outer hydraulic cylinder push-pull hollow cylinder is connected to the force-bearing end of the puller structure, the force-bearing end of the puller structure is connected to the pull rod of the puller structure, and the movement of the hydraulic outer cylinder piston can drive the pull rod to move, thereby realizing the docking and gripping of the puller gripper and the wheel.

8. The hydraulic puller suitable for multiple types of motors according to claim 7, characterized in that: A hydraulic inner cylinder piston is arranged inside the hydraulic inner cylinder, and an inner cylinder push rod is connected to one side of the hydraulic inner cylinder piston. The inner cylinder push rod can pass through the fixed seat and abut against the fixed shaft located at the center of the wheel.

9. The hydraulic puller suitable for multiple types of motors according to claim 8, characterized in that: The hydraulic inner cylinder is provided with an inner cylinder built-in oil passage, and the inner cylinder built-in oil passage is provided with a built-in inner cylinder oil passage inlet and outlet.

10. The hydraulic puller suitable for multiple types of motors according to any one of claims 1 to 9, characterized in that: The multi-way reversing valve is a five-way manual reversing valve.

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