Dismounting tool for brake hub of dump truck

Abstract

The utility model discloses a disassembling tool for a brake hub of a dump truck, and belongs to the technical field of brake hub disassembling. Comprising a movable underframe; the wheel abutting ring is installed at one end of the movable bottom frame. The reaction frame is mounted outside the wheel abutting ring in a sliding manner; the hook claw rods are hinged to the two ends of the reaction frame and elastically connected with the reaction frame through tension springs. The movable bottom frame is attached to the outer portion of the hub to be detached, limiting is conducted on the outer portion of the hooked hub of the hook claw rod, when the reaction frame provided with the hydraulic jack stretches in a limited mode, the hub limited by the wheel abutting ring in an abutting mode moves outwards under the condition that the hook claw rod, driven by the reaction frame, on the outer portion of the hooked hub is pulled to be limited, and the hub is detached. Therefore, the function of disassembling the hub is achieved, manpower is saved, labor intensity is reduced, and production safety is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of brake hub disassembly, and more specifically, to a brake hub disassembly tool for a dump truck. Background Art

[0002] When repairing the rear wheel rim, brake shoe, and tire screws of a mine dump truck, it is often necessary to dismantle the rear brake drum. Due to the lack of suitable tools, the only options are hammering, jacking, large iron bar impact, and gas welding and baking. Due to the uneven overall force, the operation is inefficient and has great operational risks.

[0003] The document with prior art publication number CN204222542U provides a large-scale mining dump truck electric wheel hub disassembly clamp. In the related technology of the device, the connection between the lower support plate and the main shaft, the connection between the upper support plate and the wheel hub, and the upper support plate are driven by a hydraulic cylinder to make the wheel hub and the main shaft relatively displaced, thereby realizing the disassembly of the wheel hub. The clamp structure is simple and the disassembly is convenient and quick.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the device cooperates with the inner ring of the hub for disassembly, external force is required to abut and limit to achieve the removal of the brake hub, which is inconvenient to operate and use.

[0005] In view of this, we propose a brake hub disassembly tool for a dump truck. Utility Model Content

[0006] In order to improve the problems raised in the above background technology, the present application provides a brake hub removal tool for dump trucks.

[0007] The brake wheel hub removal tool for dump trucks provided in this application adopts the following technical solution:

[0008] A tool for removing a brake hub of a dump truck, comprising:

[0009] Mobile chassis;

[0010] A wheel ring is installed at one end of the mobile chassis;

[0011] A reaction frame is slidably mounted on the outside of the wheel ring;

[0012] The hook rod is hingedly mounted on both ends of the reaction frame and elastically connected thereto through a tension spring.

[0013] By adopting the above technical solution, the mobile chassis is used to fit the outside of the wheel hub to be disassembled, and the outside of the hook rod is limited by the hanging wheel hub. When the reaction frame limit of the hydraulic top is extended, the wheel hub that is limited by the abutment wheel ring is moved outward under the reaction frame driving the hook rod on the outside of the hanging wheel hub to pull the wheel hub limit, thereby realizing the function of disassembling the wheel hub, which not only saves manpower and reduces labor intensity, but also ensures production safety.

[0014] As an optional solution to the technical solution of the present application document, the mobile chassis includes a wheel frame plate with moving wheels installed, two guide cylinders are fixedly connected to one side of the wheel frame plate, a reinforcement rod is fixedly connected between the guide cylinder and the wheel frame plate, and a lifting frame is slidably fitted between the two guide cylinders, an adjuster is fixedly connected between the lifting frame and the wheel frame plate, and a retaining ring sleeve that can engage with a limiting wheel ring is fixedly connected to the outside of the lifting frame by bolts.

[0015] By adopting the above technical solution, the length of the adjuster is adjusted by rotating, so that the height adjustment adjuster pushes the lifting frame to limit the increase, thereby realizing the height adjustment function of the mobile base frame, so that the mobile base frame can drive the wheel ring to be suitable for disassembly and use of wheel hubs of different heights, thereby improving the flexibility of the device.

[0016] As an optional solution of the technical solution of the present application document, the wheel ring is composed of two ring plates and a plurality of connecting rods tightly welded together, and a groove capable of being snap-fitted with a clamping ring sleeve is provided on one side of the ring plate.

[0017] By adopting the above technical solution, the wheel ring is formed by tightly welding a ring plate and multiple connecting rods, so that if one end of the wheel ring is damaged, it can be used again after being turned around and installed, thereby improving the convenience of the wheel ring in limiting the contact with the wheel hub.

[0018] As an optional solution of the technical solution of the present application document, the reaction frame includes a parts box for placing the hydraulic top, the outside of the parts box is a symmetrical structure tightly welded with two sliding rods, and the sliding rods are limited to slide outside the wheel ring.

[0019] By adopting the above technical solution, the parts box is used to place the hydraulic jack, so that when the hydraulic jack in the parts box pushes the moving hub for reaction disassembly, the hydraulic jack is not easy to deviate, thereby affecting the disassembly effect.

[0020] As an optional solution of the technical solution of the present application document, a pressure plate is hingedly installed in the movable groove opened on one side of the part box, and the pressure plate is clamped and limited with the part box through a buckle.

[0021] By adopting the above technical solution, the pressure plate can be used to limit the hydraulic top placed in the parts box, so that the hydraulic top is more stable during use and is not prone to offset, thereby affecting the abutment effect on the wheel hub reducer.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present application uses a mobile chassis to fit the outside of the wheel hub to be disassembled, and limits the outside of the wheel hub connected to the hook rod. When the reaction frame limit of the hydraulic jack is extended, the wheel hub that is limited by the abutment wheel ring moves outward under the reaction frame driving the hook rod on the outside of the wheel hub to pull the wheel hub limit, thereby realizing the function of disassembling the wheel hub, which not only saves manpower and reduces labor intensity, but also ensures production safety.

[0024] 2. The present application utilizes the rotation of the adjuster to adjust its length, so that the height-adjusting adjuster pushes the lifting frame to limit its rise, thereby realizing the height adjustment function of the mobile chassis, so that the mobile chassis can drive the wheel ring to be suitable for disassembly and use of wheels of different heights, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a tool for removing a brake hub of a dump truck disclosed in a preferred embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the overall structure of a mobile chassis for a dump truck brake hub removal tool disclosed in a preferred embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the overall structure of a wheel ring for a brake hub removal tool for a dump truck disclosed in a preferred embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the overall structure of a reaction frame for a brake hub removal tool for a dump truck disclosed in a preferred embodiment of the present application;

[0029] Explanation of the numbers in the figure: 1. Mobile chassis; 2. Wheel ring; 3. Reaction frame; 4. Hook rod; 11. Wheel frame plate; 12. Guide cylinder; 13. Reinforcement rod; 14. Lifting frame; 15. Regulator; 16. Snap ring sleeve; 21. Ring plate; 22. Connecting rod; 31. Parts box; 32. Sliding sleeve rod; 33. Pressure plate. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1-4, the wheel ring 2 in the brake hub removal tool for dump trucks recorded in the embodiment of the present application is installed at one end of the mobile chassis 1;

[0032] The reaction frame 3 is slidably mounted on the outside of the wheel ring 2;

[0033] The hook rod 4 is hingedly mounted on both ends of the reaction frame 3 and elastically connected thereto via a tension spring.

[0034] The tool for removing the brake wheel hub of a dump truck utilizes a mobile chassis 1 to fit the outside of the wheel hub to be removed, and limits the outside of the wheel hub connected to the hook rod 4. When the reaction frame 3 installed with the hydraulic jack is limited and extended, the wheel hub that is limited by the abutment wheel ring 2 moves outward under the reaction frame 3 driving the hook rod 4 on the outside of the wheel hub to pull the wheel hub to limit the wheel hub, thereby realizing the function of removing the wheel hub, which not only saves manpower and reduces labor intensity, but also ensures production safety.

[0035] Reference Figure 2 and Figure 1 The movable chassis 1 in the brake wheel hub removal tool for dump trucks recorded in the embodiment of the present application includes a wheel frame plate 11 on which a movable wheel is installed, two guide cylinders 12 are fixedly connected to one side of the wheel frame plate 11, a reinforcement rod 13 is fixedly connected between the guide cylinder 12 and the wheel frame plate 11, and a lifting frame 14 is slidably fitted between the two guide cylinders 12, an adjuster 15 is fixedly connected between the lifting frame 14 and the wheel frame plate 11, and a retaining ring sleeve 16 that can engage with the limiting wheel ring 2 is fixedly connected to the outside of the lifting frame 14 by bolts.

[0036] The brake wheel hub disassembly tool for dump trucks adjusts its length by rotating the adjuster 15, so that the height-adjustable adjuster 15 pushes the lifting frame 14 to limit its elevation, thereby realizing the height adjustment function of the mobile chassis 1, so that the mobile chassis 1 can drive the wheel ring 2 to disassemble and use the wheel hubs of different heights, thereby improving the flexibility of the device.

[0037] Reference Figure 3 and Figure 1 The wheel ring 2 in the brake hub removal tool for dump trucks recorded in the embodiment of the present application is composed of two ring plates 21 and a plurality of connecting rods 22 tightly welded together, and a groove that can be snap-fitted with the snap ring sleeve 16 is provided on one side of the ring plate 21.

[0038] The tool for disassembling the brake wheel hub of a dump truck is composed of a wheel ring 2 formed by tightly welding a ring plate 21 and a plurality of connecting rods 22, so that if one end of the wheel ring 2 is damaged, it can be used again after being turned around and installed, thereby improving the convenience of the wheel ring 2 in limiting the contact with the wheel hub.

[0039] Reference Figure 4 and Figure 1The reaction frame 3 in the brake hub removal tool for dump trucks recorded in the embodiment of the present application includes a parts box 31 for placing a hydraulic top. The outside of the parts box 31 is a symmetrical structure with two sliding rods 32 tightly welded thereon. The sliding rods 32 are limited to slide outside the wheel ring 2, and a pressure plate 33 is hingedly installed in a movable groove opened on one side of the parts box 31. The pressure plate 33 is clamped and limited with the parts box 31 by a buckle.

[0040] The brake wheel hub disassembly tool for dump trucks can limit the hydraulic jack placed in the parts box 31 by using the pressure plate 33, so that the hydraulic jack is more stable during use and is not prone to deviation, thereby affecting the abutment effect on the wheel hub reducer.

[0041] Working principle: First, push the mobile chassis 1 to drive the device to move outside the wheel hub. Then, manually rotate the screw sleeve in the adjuster 15 installed in the mobile chassis 1. The rotating screw sleeve drives the two screw rods connected by its external threads to move outward, thereby increasing the distance between the guide cylinder 12 and the lifting frame 14, so as to achieve the height adjustment of the mobile chassis 1.

[0042] Next, the wheel ring 2 after height adjustment is sleeved on the outside of the wheel hub, and the hook rod 4 elastically hinged by the tension spring on the outside of the reaction frame 3 is hung on the outside of the wheel hub for clamping and limiting. Then, the hydraulic jack is put into the parts box 31 in the reaction frame 3, and after the pressure plate 33 is covered and fixed, the telescopic end of the hydraulic jack is abutted and limited with the wheel hub wheel side reducer, and then the hydraulic jack is started to extend. At this time, the hydraulic jack drives the reaction frame 3 to move outward, and forms a reverse thrust with the wheel ring 2 to drag and disassemble the brake drum.

[0043] When the wheel ring 2 needs to be adjusted in position at a later stage, the snap ring sleeve 16 is removed, the wheel ring 2 is changed in position, and the snap ring sleeve 16 is re-fixed.

Claims

1. A brake wheel hub removal tool for dump trucks, characterized in that: include: Mobile chassis; The wheel ring is installed at one end of the mobile chassis; A reaction frame is slidably mounted on the outside of the wheel ring; The hook rod is hingedly mounted on both ends of the reaction frame and elastically connected thereto through a tension spring.

2. The brake wheel hub removal tool for dump trucks according to claim 1, characterized in that: The movable chassis includes a wheel frame plate with movable wheels installed, two guide cylinders are fixedly connected to one side of the wheel frame plate, a reinforcement rod is fixedly connected between the guide cylinder and the wheel frame plate, and a lifting frame is slidably fitted between the two guide cylinders, an adjuster is fixedly connected between the lifting frame and the wheel frame plate, and a retaining ring sleeve that can engage with a limiting wheel ring is fixedly connected to the outside of the lifting frame by bolts.

3. The brake hub removal tool for dump trucks according to claim 1, characterized in that: The wheel-resisting ring is composed of two ring plates and a plurality of connecting rods which are tightly welded, and a groove which can be snap-fitted and matched with a snap ring sleeve is provided on one side of the ring plate.

4. The brake hub removal tool for dump trucks according to claim 1, characterized in that: The reaction frame comprises a parts box for placing the hydraulic jack, the exterior of the parts box is in a symmetrical structure and is tightly welded with two sliding sleeve rods, and the sliding sleeve rods are limited to slide outside the wheel ring.

5. The brake wheel hub removal tool for dump trucks according to claim 4, characterized in that: A pressing plate is hingedly installed in a movable groove opened at one side of the part box, and the pressing plate is clamped and limited with the part box through a buckle.

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