A rear frame for a mining truck

By optimizing the welding and assembly structure of the rear frame of mining trucks and adopting components such as spherical roller bearings, the problems of unstable connections and difficult maintenance have been solved, achieving higher reliability and convenient maintenance, and improving the overall aesthetics.

CN224392741UActive Publication Date: 2026-06-23JINCHUAN GRP MACHINERY MFG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINCHUAN GRP MACHINERY MFG
Filing Date
2025-08-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing rear frames of mining trucks are inadequate in terms of connection stability, ease of maintenance, and aesthetics, making it difficult to meet the requirements of reliability and stability.

Method used

A structure comprising a rear frame welding body and an assembly body was designed, employing components such as spherical roller bearings, shafts, and hinge seats to optimize the welding and assembly structure, ensure connection stability, and facilitate disassembly and maintenance.

Benefits of technology

It improves the reliability and stability of the rear frame of mining trucks, facilitates maintenance, and enhances operational safety and overall aesthetics.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224392741U_ABST
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Abstract

The utility model discloses a kind of rear frames suitable for mine truck, belong to underground trackless equipment technical field.Rear frame includes: rear frame welding main body, including upper plate, cover plate, vertical plate, stand, lower plate and bottom plate, the lower plate is located below upper plate, the bottom plate is located below cover plate, the upper plate rear end is welded with cover plate front end, the lower plate rear end is welded with bottom plate front end, the stand is welded between upper plate and lower plate, the vertical plate is welded between cover plate and bottom plate;Rear frame assembly main body, including assembled on the rear frame welding main body spherical roller bearing, shaft and hinged seat.The utility model is first to ensure the reliability and stability of mine truck rear frame;Second, easy to disassemble when overhauling, ensure the safety of operator and maintenance personnel, improve the safety factor of mine truck, facilitate popularization and use.
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Description

Technical Field

[0001] The utility model relates to the technical field of underground trackless equipment, and particularly relates to a rear frame applicable to a mining truck. Background Art

[0002] The existing design of the rear frame of a mining truck usually only meets the requirements of basic adaptability and low cost, but there are deficiencies in connection stability, maintenance convenience and overall aesthetics. Therefore, there is an urgent need for a rear frame structure that can ensure reliability and stability, is convenient for disassembly and maintenance, and is highly adaptable to other components. Summary of the Invention

[0003] The purpose of the utility model is to provide a rear frame applicable to a mining truck, and by optimizing the structural design of the welding main body and the assembly main body, solve the problems of unstable connection, difficult maintenance and poor aesthetics in the prior art.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A rear frame applicable to a mining truck, comprising:

[0006] A rear frame welding main body, including an upper plate, a cover plate, a vertical plate, a vertical frame, a lower plate and a bottom plate. The lower plate is located below the upper plate, the bottom plate is located below the cover plate. The rear end of the upper plate is welded to the front end of the cover plate, the rear end of the lower plate is welded to the front end of the bottom plate. The vertical frame is welded between the upper plate and the lower plate, and the vertical plate is welded between the cover plate and the bottom plate;

[0007] A rear frame assembly main body, including a spherical roller bearing, a shaft and a hinge seat assembled on the rear frame welding main body.

[0008] The projection of the rear frame welding main body on the horizontal plane is in the shape of a "big" character. A through hole is provided at the front end head of the rear frame welding main body, and a spherical roller bearing is assembled in the through hole. Hinge seat a is installed at the end heads of the two legs at the rear end of the rear frame welding main body. A rear lamp holder is installed between the two legs at the rear end of the rear frame welding main body through bolts. Lifting hinge seats are installed on the left and right extending ends in the middle of the rear frame welding main body. A buffer pad is also installed in the middle of the rear frame welding main body.

[0009] The end heads of the two legs at the rear end of the rear frame welding main body are hinged with a connecting plate through an ear plate and a pin shaft, and the upper end head of the connecting plate is fixed on the hinge seat a through a safety pin and an ear plate.

[0010] There are two buffer pads, which are symmetrically installed on the left and right in the two installation frames of the cover plate. The installation frames are installed on the cover plate of the rear frame welding main body through bolts. A cushion block is also installed on the cover plate between the two buffer pads.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] This utility model ensures the reliability and stability of the rear frame of mining trucks through the design of the rear frame welding main body and the rear frame assembly main body; at the same time, it is easy to disassemble during maintenance, ensuring the safety of operators and maintenance personnel and improving the safety factor of mining trucks. Attached Figure Description

[0013] Figure 1 This is a side view of the welded main body of the rear frame of this utility model;

[0014] Figure 2 This is a top view of the welded main body of the rear frame of this utility model;

[0015] Figure 3 This is a side view of the main body of the rear frame assembly of this utility model;

[0016] Figure 4 This is a side view of the main body of the rear frame assembly of this utility model;

[0017] Figure 5 for Figure 3 Sectional view at BB;

[0018] Figure 6 for Figure 3 Sectional view at KK. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] 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 to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. Embodiment

[0022] Such as Figure 1-6 , this embodiment provides a rear frame applicable to a mining truck, including:

[0023] The rear frame welding main body includes an upper plate, a cover plate, a vertical plate, a vertical frame, a lower plate, a bottom plate, etc. The lower plate is located below the upper plate, the bottom plate is located below the cover plate. The rear end of the upper plate is welded to the front end of the cover plate, the rear end of the lower plate is welded to the front end of the bottom plate. The vertical frame is welded between the upper plate and the lower plate, and the vertical plate is welded between the cover plate and the bottom plate.

[0024] It also includes a rear frame assembly main body, including a spherical roller bearing, a shaft, a hinge seat, etc. assembled on the rear frame welding main body.

[0025] The projection of the rear frame welding main body on the horizontal plane is in the shape of a "big" character. A through hole is opened at the front end head of the rear frame welding main body, and a spherical roller bearing is assembled in the through hole. Hinge seat a is installed at the end heads of the two legs at the rear end of the rear frame welding main body. A rear lamp bracket 29 is installed between the end heads of the two legs at the rear end of the rear frame welding main body through bolt 30. Lifting hinge seats 3 are installed on the cover plates 4 at the left and right extending ends in the middle of the rear frame welding main body. A buffer pad 10 is also installed in the middle of the rear frame welding main body. There are two buffer pads 10, which are symmetrically installed on the left and right in two mounting frames 11 fixed on the cover plate. The mounting frames 11 are installed on the cover plate of the rear frame welding main body through bolts. A spacer block 022 is also installed on the cover plate between the two buffer pads 10.

[0026] The rear end heads of the two legs at the rear end of the rear frame welding main body are hinged with a connecting plate 013 through a pair of ear plates and a pin shaft therein. The upper end head of the connecting plate 013 is fixed on the hinge seat a through a safety pin 012 and a pair of ear plates.

[0027] Specifically, such as Figures 1-2The rear frame welding body is composed of circular plate a1, upper plate 2, upright frame 3, cover plate 4, left upright plate 5, tube 6, upright plate a7, upright plate b8, upright plate c9, lower plate 10, bottom plate 11, front wall plate 12, bushing 13, upright plate d14, upright plate e15, upright plate f16, pad plate 17, upright plate g18, right upright plate 22, middle upright plate 23, support plate 25, right inner plate 26, front plate 27, sleeve a28, circular plate b29, support upright plate 30, rear plate 31, stiffening plate a32, stiffening plate b33, stiffening plate c34, stiffening plate d35, left inner plate 37, ear plate 38, angle steel 39, circular plate c40, arc plate 41, upright plate h42, and upright plate j43. The upper plate 2 and the lower plate 10 have corresponding through holes at their front ends for installing spherical roller bearings. Circular plates 1 are welded to the upper and lower sides of these through holes. The upright frame 3 is welded between the upper plate 2 and the lower plate 10 in a left-right direction. A pipe 6 is horizontally welded between the upright frame 3 and the cover plate 4, with the rear end of the pipe 6 extending out of the cover plate 4 and the front end of the pipe 6 located at the through hole on the upright frame 3. Angle steel 39 is welded to the inner side of the inner support plate 30 and is used to install the rear lamp holder 29 using bolts.

[0028] like Figures 3-6 The rear frame assembly body consists of spherical roller bearing 01, lifting hinge seat 03, sleeve 06, shaft a07, bolt a08, washer a09, buffer pad 010, mounting frame 011, safety pin 012, connecting plate 013, washer b016, pin shaft 017, inner cover a018, outer cover a019, shaft b020, adjusting shim 021, pad block 022, inner cover b024, bolt c025, shaft c026, bearing 027, outer cover b028, rear light bracket 029, bolt b030, nut 031, cotter pin 032, steel pipe bracket a033, and steel pipe bracket b034. The mounting frame 011 is fixed to the cover plate 4 with bolts, and the buffer pad 010 is installed inside the mounting frame 011.

Claims

1. A rear frame suitable for mining trucks, characterized in that, Comprising: The rear frame welding main body includes an upper plate, a cover plate, a vertical plate, a vertical frame, a lower plate and a bottom plate. The lower plate is located below the upper plate, and the bottom plate is located below the cover plate. The rear end of the upper plate is welded to the front end of the cover plate, the rear end of the lower plate is welded to the front end of the bottom plate, the vertical frame is welded between the upper plate and the lower plate, and the vertical plate is welded between the cover plate and the bottom plate; The rear frame assembly main body includes a spherical roller bearing, a shaft and a hinge seat assembled on the rear frame welding main body.

2. The rear frame of a mining truck according to claim 1, characterized in that, The projection of the rear frame welding main body on the horizontal plane is in the shape of a "big" character. A through hole is provided at the front end head of the rear frame welding main body, and a spherical roller bearing is assembled in the through hole. Hinge seats a are installed at the end heads of the two legs at the rear end of the rear frame welding main body. A rear lamp bracket is installed between the two legs at the rear end of the rear frame welding main body through bolts. Lifting hinge seats are installed on the left and right extending ends in the middle of the rear frame welding main body. A buffer pad is also installed in the middle of the rear frame welding main body.

3. A rear frame suitable for mining trucks according to claim 2, characterized in that, The rear end heads of the two legs at the rear end of the rear frame welding main body are hinged with a connecting plate through an ear plate and a pin shaft, and the upper end head of the connecting plate is fixed on the hinge seat a through a safety pin and an ear plate.

4. A rear frame suitable for mining trucks according to claim 2, characterized in that, There are two buffer pads, which are symmetrically installed on the left and right in two installation frames of the cover plate. The installation frames are installed on the cover plate of the rear frame welding main body through bolts. A cushion block is also installed on the cover plate between the two buffer pads.