A rear axle structure for a backhoe loader

By installing a color difference sensor and a locking mechanism on the rear axle of the excavator loader, the problems of precise positioning of the front and rear axle drives and loose threads were solved, achieving axle alignment and a stable thread connection, thus improving the operational reliability of the equipment.

CN224514309UActive Publication Date: 2026-07-17河南耿驰机械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河南耿驰机械有限公司
Filing Date
2025-06-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The front and rear axle drives of existing excavator loaders cannot be precisely positioned, and the threaded connections lack fastening components, leading to loosening and detachment.

Method used

A detection mechanism using a color difference sensor and color ribbon ensures that the front and rear axles are aligned, and a fixing mechanism using locking plates and hydraulic cylinder piston rods tightens the threaded connections to prevent loosening.

Benefits of technology

It achieves precise positioning of the front and rear axles and secure threaded connections, preventing loosening and detachment, and improving the operational reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224514309U_ABST
    Figure CN224514309U_ABST
Patent Text Reader

Abstract

The utility model relates to excavator loader technical field discloses a kind of excavator loader rear axle structure, including oil cylinder cylinder, the oil cylinder cylinder outer wall one side is provided with detection mechanism, the oil cylinder cylinder one end is connected with fixed mechanism, the detection mechanism includes chromatic aberration sensor, the fixed mechanism includes oil cylinder piston rod, the oil cylinder cylinder both ends are provided with oil cylinder piston rod, the oil cylinder cylinder one end inside is provided with chromatic aberration sensor, the oil cylinder piston rod outer wall and located oil cylinder cylinder inside one end is provided with color band, the color band and chromatic aberration sensor between each other cooperate, the oil cylinder piston rod one end is connected with first lock piece, the first lock piece outer wall one side is connected with spherical shell. In the utility model, the position of front axle and rear axle can be detected by the detection mechanism, so that the front axle and rear axle are ensured to be in the state of returning to normal, and the fixed mechanism is further arranged to tighten the threaded connection, to prevent the loosening and falling of the thread.
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Claims

1. A rear axle construction of a backhoe loader comprising a ram cylinder (3), characterized in that: A detection mechanism (1) is provided on one side of the outer wall of the cylinder barrel (3), and a fixing mechanism (2) is connected to one end of the cylinder barrel (3). The detection mechanism (1) includes a color difference sensor (101), the fixing mechanism (2) includes a cylinder piston rod (201), the cylinder barrel (3) is provided with cylinder piston rods (201) at both ends, a color difference sensor (101) is provided inside one end of the cylinder barrel (3), a color strip (102) is provided on the outer wall of the cylinder piston rod (201) and at one end inside the cylinder barrel (3), and the color strip (102) and the color difference sensor (101) cooperate with each other; One end of the piston rod (201) of the oil cylinder is connected to a first locking plate (202), and a ball shell (205) is connected to one side of the outer wall of the first locking plate (202). A ball head pin (4) is provided inside the ball shell (205), and one end of the ball head pin (4) is connected to a second locking plate (203). A pull rod (204) is connected to one side of the outer wall of the second locking plate (203).

2. The rear bridge structure for an excavating loader according to claim 1, characterized by: An oil inlet (5) is provided on the upper end of one side of the outer wall of the cylinder barrel (3).

3. The excavating loader rear bridge structure of claim 1, wherein: The ribbon (102) is set to a black material printed by laser.

4. The excavating loader rear bridge structure of claim 1, wherein: The cylinder piston (103) is provided inside the cylinder barrel (3) and on the outer wall of one end of the cylinder piston rod (201).

5. The excavating loader rear bridge structure of claim 1, wherein: The piston (103) of the oil cylinder is provided with a sealing element (104) on its outer wall.

6. The excavating loader rear bridge structure of claim 1, wherein: The ball head pin (4) and the pull rod (204) are connected by a nut (7), and the second locking piece (203) is disposed between the nut (7) and the pull rod (204).

7. The excavating loader rear bridge structure of claim 1, wherein: One end of the pull rod (204) is connected to a tapered pin (6).

8. The excavating loader rear bridge structure of claim 1, wherein: The first locking plate (202) and the second locking plate (203) are respectively locked onto the bosses of the relevant two side parts.