An electric wheel hub disassembly assembly and an electric wheel hub disassembly device
By designing a trapezoidal structure for the cylinder support and fastening components, the problem of the inability to directly disassemble the wheel hub of the electric wheel of the heavy mining car was solved, achieving a stable and safe wheel hub disassembly process, which is suitable for various disassembly conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU XCMG MINING MACHINERY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
The hub of the electric wheel of the heavy mining car cannot be directly removed by the hydraulic cylinder because the outer bearing has a large interference fit with the frame, and the hydraulic cylinder cannot reach the lower end face of the hub, making disassembly difficult.
Design an electric wheel hub disassembly assembly including a cylinder support and fastening components. The cylinder support with a trapezoidal structure moves the cylinder position to the lower end face of the hub, and the hydraulic pump station uses the piston rods of multiple cylinders to push upwards simultaneously until the hub is separated from the frame.
It enables successful disassembly of the electric wheel hub when the outer diameter of the hub is smaller than the outer diameter of the frame. The structure is simple and can be applied to other disassembly conditions, enhancing the stability and safety of the hydraulic cylinder.
Smart Images

Figure CN224310005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electric wheel hub disassembly assembly, belonging to the field of electric wheel hub disassembly technology. Background Technology
[0002] When a heavy-duty mining car's electric wheel experiences oil leakage or tooth breakage, the wheel hub needs to be disassembled for further repairs. Because the inner ring of the outer bearing of the electric wheel has a large interference fit with the frame, the wheel hub cannot be directly disassembled and requires removal using a hydraulic cylinder (pushing it out from bottom to top). However, because the outer diameter of the wheel hub is smaller than the outer diameter of the frame, when the hydraulic cylinder is placed on the pad on the end face of the frame, it cannot reach the lower end face of the wheel hub, preventing direct disassembly using the hydraulic cylinder.
[0003] To solve the problem that electric wheel hubs cannot be directly disassembled using hydraulic cylinders, it is necessary to design a hub disassembly device suitable for this special electric wheel structure. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides an electric wheel hub disassembly assembly and an electric wheel hub disassembly device, solving the problem that wheel hubs cannot be directly disassembled using hydraulic cylinders.
[0005] This utility model is achieved according to the following technical solution:
[0006] In a first aspect, this utility model provides an electric wheel hub disassembly assembly, comprising:
[0007] A hydraulic cylinder support is placed around the perimeter of the machine frame, and the side of the hydraulic cylinder support can abut against the circumferential surface of the machine frame;
[0008] Fastening components are configured to secure and release the cylinder support from the lower end face of the frame;
[0009] The hydraulic cylinder is placed on top of the hydraulic cylinder support. The piston rod of the hydraulic cylinder can press against the lower end face of the hub, and continuously push the hub upwards until the outer bearing of the hub disengages from the frame.
[0010] In some embodiments, the cylinder support includes:
[0011] The base has an overall trapezoidal structure that is narrower at the bottom and wider at the top;
[0012] The hydraulic cylinder protective component is fixed on the top surface of the base. The hydraulic cylinder protective component limits the hydraulic cylinder in the horizontal direction to prevent the hydraulic cylinder from tipping over or sliding.
[0013] In some embodiments, the base includes:
[0014] The base plate is connected to the lower mounting plate of the frame via the fastening components;
[0015] A pair of opposing vertical plates are fixed to the base plate. The vertical plates have a trapezoidal structure that is narrower at the bottom and wider at the top.
[0016] An inclined plate, spanning two vertical plates on the side facing the frame and fixed to the two vertical plates, is tangent to the arcuate circumference of the frame;
[0017] A top plate spans the top surface of two vertical plates and is fixed to the two vertical plates; the top plate is parallel to the bottom plate; the hydraulic cylinder protective component is fixed to the top plate.
[0018] In some embodiments, the top plate is provided with at least one hoisting hole for rotating the cylinder support seat.
[0019] In some embodiments, the base plate is provided with at least one positioning hole, the diameter of which is the same as the mounting hole on the lower mounting plate of the frame; the fastening component is a positioning pin, which is inserted into the positioning hole and the mounting hole to fix the base plate to the lower mounting plate of the frame.
[0020] In some embodiments, the base plate is provided with two positioning holes, the diameter and spacing of which are consistent with the two mounting holes on the lower mounting plate of the frame.
[0021] In some embodiments, at least one stiffening plate is fixed between the two vertical plates.
[0022] In some embodiments, the cylinder protection component is an arc-shaped plate, which is vertically fixed on the top surface of the base, and the inner arc surface of the arc-shaped plate faces the cylinder.
[0023] Secondly, this utility model provides an electric wheel hub disassembly device, including a plurality of the above-mentioned electric wheel hub disassembly components; the plurality of electric wheel hub disassembly components are arranged at intervals along the entire circumference of the frame.
[0024] In some embodiments, multiple hydraulic cylinders are connected to a hydraulic pump station. When the hydraulic pump station is started, the piston rods of the multiple hydraulic cylinders simultaneously push the wheel hub upward.
[0025] The beneficial effects of this utility model are:
[0026] This utility model provides an electric wheel hub disassembly assembly and an electric wheel hub disassembly device. When the outer diameter of the hub is smaller than the outer diameter of the frame and the hub cannot be directly disassembled by a hydraulic cylinder, this trapezoidal structure device is used to move the position of the hydraulic cylinder to the lower end face of the hub, thus solving the problem that the electric wheel hub cannot be disassembled by a hydraulic cylinder.
[0027] This utility model has a simple and practical structure and can be replicated in other disassembly conditions. Attached Figure Description
[0028] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.
[0029] In the attached diagram:
[0030] Figure 1 This is a schematic diagram illustrating the application of the electric wheel hub disassembly device of this utility model.
[0031] Figure 2 This is a schematic diagram of the hydraulic cylinder support structure of this utility model.
[0032] Attached diagram labels: 1. Cylinder support seat, 2. Cylinder, 3. Fastening component, 1-1. Base plate, 1-2. Vertical plate, 1-3. Rib plate, 1-4. Top plate, 1-5. Inclined plate, 1-6. Arc plate, 10. Frame, 20. Hub.
[0033] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] like Figure 1 As shown, this utility model provides an electric wheel hub disassembly device, including multiple electric wheel hub disassembly components; the multiple electric wheel hub disassembly components are arranged at intervals along the entire circumference of the frame 10.
[0038] In a preferred embodiment, four electric wheel hub removal assemblies are provided, which are evenly spaced around the frame 10.
[0039] The following provides a further explanation of the specific structure of the aforementioned electric wheel hub disassembly assembly.
[0040] like Figure 1 , Figure 2 As shown, an electric wheel hub disassembly assembly includes a cylinder support 1, a fastening component 3, and a cylinder 2. The cylinder support 1 is placed around the periphery of a frame 10, and the side of the cylinder support 1 can abut against the circumferential surface of the frame 10. The fastening component 3 is configured to fix and release the cylinder support 1 from the lower end face of the frame 10. The cylinder 2 is placed on top of the cylinder support 1, and the piston rod of the cylinder 2 can abut against the lower end face of the hub 20. The cylinder 2 continuously pushes the hub 20 upward until the outer bearing of the hub 20 disengages from the frame 10.
[0041] The following provides a further explanation of the specific structure of the aforementioned hydraulic cylinder support.
[0042] like Figure 2 As shown, the hydraulic cylinder support 1 includes a base and a hydraulic cylinder protection component; the base has an overall trapezoidal structure that is narrower at the bottom and wider at the top; the hydraulic cylinder protection component is fixed on the top surface of the base, and the hydraulic cylinder protection component limits the hydraulic cylinder 2 in the horizontal direction to prevent the hydraulic cylinder 2 from tipping over or sliding.
[0043] The following is a further explanation of the specific structure of the aforementioned base.
[0044] like Figure 2 As shown, the base includes a base plate 1-1, a pair of opposing vertical plates 1-2, an inclined plate 1-5, and a top plate 1-4; the base plate 1-1 is connected to the lower mounting plate of the frame 10 via fastening components 3; the pair of opposing vertical plates 1-2 are fixed on the base plate 1-1, and the vertical plates 1-2 have a trapezoidal structure that is narrower at the bottom and wider at the top; the inclined plate 1-5 spans across the two vertical plates 1-2 on the side facing the frame 10 and is fixed to the two vertical plates 1-2, and the inclined plate 1-5 is tangent to the arc circumference of the frame 10; the top plate 1-4 spans across the top surface of the two vertical plates 1-2 and is fixed to the two vertical plates 1-2; the top plate 1-4 is parallel to the base plate 1-1; the hydraulic cylinder protective component is fixed on the top plate 1-4.
[0045] Further options, such as Figure 2As shown, the top plate 1-4 is provided with at least one hoisting hole for the hydraulic cylinder support seat 1 to be hoisted and rotated.
[0046] Further options, such as Figure 2 As shown, the base plate 1-1 is provided with at least one positioning hole, the diameter of which is the same as the mounting hole on the lower mounting plate of the frame 10; the fastening component 3 is a positioning pin, which is inserted into the positioning hole and the mounting hole to fix the base plate 1-1 to the lower mounting plate of the frame 10.
[0047] Further options, such as Figure 2 As shown, the base plate 1-1 has two positioning holes, and the diameter and spacing of the two positioning holes are the same as the two mounting holes on the lower mounting plate of the frame 10.
[0048] Further options, such as Figure 2 As shown, at least one stiffening plate 1-3 is fixed between the two vertical plates 1-2.
[0049] The following provides a further explanation of the specific structure of the cylinder protection component mentioned above.
[0050] like Figure 2 As shown, the hydraulic cylinder protective component is an arc-shaped plate 1-6, which is vertically fixed on the top plate 1-4, and the inner arc surface of the arc-shaped plate 1-6 faces the hydraulic cylinder 2.
[0051] When disassembling the wheel hub 20, first place the four electric wheel hub disassembly components evenly and alternately on the lower mounting plate of the frame 10; after placing the cylinder support 1 on the lower mounting plate of the frame 10, align the positioning holes on the cylinder support 1 with the mounting holes on the frame 10, and then insert the positioning pins into the aligned positioning holes and mounting holes to prevent the cylinder support 1 from slipping or detaching under force; place the cylinder 2 on the cylinder support 1 and move it inward to increase the contact area with the wheel hub 20 as much as possible. Connect the four cylinders 2 to the hydraulic pump station, start the hydraulic pump station, and let the piston rods of all cylinders 2 simultaneously push the wheel hub 20 from bottom to top until the outer bearing of the wheel hub 20 disengages from the frame 10, completing the wheel hub disassembly task.
[0052] In summary, this utility model provides an electric wheel hub disassembly assembly and an electric wheel hub disassembly device, achieving the following functions and effects:
[0053] 1. The electric wheel hub removal device solves the problem that wheel hubs cannot be directly removed using hydraulic cylinders;
[0054] 2. The hydraulic cylinder support base has a stable trapezoidal structure, with the bottom plate and top plate being horizontal and the inclined plate being tangent to the frame. The bottom plate is fixed to the frame with positioning pins, and the inclined plate of the hydraulic cylinder support base is tangent to the arc surface of the frame, which enhances the rigidity and stability of the hydraulic cylinder support base.
[0055] 3. A protective component for the hydraulic cylinder is welded onto the hydraulic cylinder support to prevent the hydraulic cylinder from slipping or detaching during wheel hub disassembly, thus enhancing safety.
[0056] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0057] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.
[0058] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An electric wheel hub disassembly assembly, characterized in that, include: A hydraulic cylinder support is placed around the perimeter of the machine frame, and the side of the hydraulic cylinder support can abut against the circumferential surface of the machine frame; Fastening components are configured to secure and release the cylinder support from the lower end face of the frame; The hydraulic cylinder is placed on top of the hydraulic cylinder support. The piston rod of the hydraulic cylinder can press against the lower end face of the hub, and continuously push the hub upwards until the outer bearing of the hub disengages from the frame.
2. The electric wheel hub disassembly assembly according to claim 1, characterized in that, The cylinder support includes: The base has an overall trapezoidal structure that is narrower at the bottom and wider at the top; The hydraulic cylinder protective component is fixed on the top surface of the base. The hydraulic cylinder protective component limits the hydraulic cylinder in the horizontal direction to prevent the hydraulic cylinder from tipping over or sliding.
3. The electric wheel hub disassembly assembly according to claim 2, characterized in that, The base includes: The base plate is connected to the lower mounting plate of the frame via the fastening components; A pair of opposing vertical plates are fixed to the base plate. The vertical plates have a trapezoidal structure that is narrower at the bottom and wider at the top. An inclined plate, spanning two vertical plates on the side facing the frame and fixed to the two vertical plates, is tangent to the arcuate circumference of the frame; A top plate spans the top surface of two vertical plates and is fixed to the two vertical plates; the top plate is parallel to the bottom plate; the hydraulic cylinder protective component is fixed to the top plate.
4. The electric wheel hub disassembly assembly according to claim 3, characterized in that: The top plate is provided with at least one hoisting hole for rotating the cylinder support seat.
5. The electric wheel hub disassembly assembly according to claim 3, characterized in that: The base plate is provided with at least one positioning hole, the diameter of which is the same as the mounting hole on the lower mounting plate of the frame. The fastening component is a positioning pin, which is inserted into the positioning hole and the mounting hole to fix the base plate to the lower mounting plate of the frame.
6. The electric wheel hub disassembly assembly according to claim 5, characterized in that: The base plate is provided with two positioning holes, and the diameter and spacing of the two positioning holes are consistent with the two mounting holes on the lower mounting plate of the frame.
7. The electric wheel hub disassembly assembly according to claim 3, characterized in that: At least one stiffening rib is fixed between the two vertical plates.
8. The electric wheel hub disassembly assembly according to claim 2, characterized in that: The hydraulic cylinder protective component is an arc-shaped plate, which is vertically fixed on the top surface of the base, with the inner arc surface of the arc-shaped plate facing the hydraulic cylinder.
9. An electric wheel hub disassembly device, characterized in that: It includes multiple electric wheel hub removal assemblies as described in any one of claims 1 to 8; the multiple electric wheel hub removal assemblies are arranged at intervals along the entire circumference of the frame.
10. The electric wheel hub disassembly device according to claim 9, characterized in that: Multiple hydraulic cylinders are connected to a hydraulic pump station. When the hydraulic pump station is started, the piston rods of the multiple hydraulic cylinders simultaneously push the wheel hub upward.