Bucket rod oil cylinder pipeline arrangement structure

Abstract

The utility model provides a bucket rod oil cylinder pipeline arrangement structure, which belongs to the technical field of engineering machinery and comprises a movable arm, a bucket rod and a bucket rod oil cylinder, two movable arm upper lug plates are symmetrically arranged on the upper surface of the movable arm, one end of the bucket rod oil cylinder is rotatably connected with the two movable arm upper lug plates, and the other end of the bucket rod oil cylinder is rotatably connected with the bucket rod; and one end, close to the bucket rod oil cylinder, of the bucket rod oil cylinder hose is placed between the two movable arm upper lug plates. The problem that the hose passes through the outer side of the upper lug plate of the movable arm and is connected with the bucket rod oil cylinder, so that a pipeline is too long is solved, meanwhile, the situation that the hose is easily scratched and abraded due to the fact that the outer side is not protected is avoided, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, and in particular relates to a pipe arrangement structure of a bucket rod oil cylinder. Background Art

[0002] An excavator is a type of engineering machinery widely used in earthwork construction. The front side of the excavator is equipped with accessories, such as a bucket, a breaker hammer and a hydraulic shear. The accessories are connected to the excavator through a boom and an arm. An accessory cylinder for controlling the movement of the accessory is installed on the upper part of the arm, and an arm cylinder for controlling the movement of the arm is installed on the upper part of the boom. In addition, a boom cylinder for controlling the movement of the boom is also installed on the excavator. The movement of the accessory is controlled by the accessory cylinder, and the extension and retraction of the boom cylinder and the arm cylinder are coordinated to control the excavation, loading and other actions of the accessory.

[0003] Since each oil cylinder needs to be connected to two oil supply pipelines, and the rear end of the oil supply pipeline needs to be connected to the multi-way valve installed on the excavator body, and due to the limitation of the installation position of the oil cylinder, in order to facilitate the connection, the oil supply pipelines on the boom are mostly laid from both sides of the boom, which not only makes the oil supply pipeline too long, but also easily causes scratches and wear during use, affecting the service life of the oil supply pipeline. Utility Model Content

[0004] In view of the defects or shortcomings in the prior art, the utility model provides a boom cylinder pipeline layout structure, which solves the problem that the hose is connected to the boom cylinder through the outside of the upper ear plate of the boom, resulting in a too long pipeline, and at the same time avoids the situation where the hose is easily scratched and worn due to the lack of protection on the outside, thereby increasing the service life of the pipeline.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The embodiment of the utility model provides a boom cylinder pipeline arrangement structure, comprising a boom, a boom and a boom cylinder, wherein two boom upper lug plates are symmetrically arranged on the upper surface of the boom, one end of the boom cylinder is rotatably connected to the two boom upper lug plates, and the other end is rotatably connected to the boom;

[0007] It also includes a boom oil cylinder hose, one end of which is close to the boom oil cylinder and is placed between two boom upper ear plates.

[0008] Furthermore, one end of the movable arm is hinged to the bucket arm, and the other end is hinged to the revolving platform.

[0009] Furthermore, the boom upper ear plate is a triangular structure, and one end of the boom oil cylinder is located between the two boom upper ear plates and is rotatably connected to the top ends of the two boom upper ear plates.

[0010] Furthermore, one end of the boom close to the boom 1 extends toward one side of the boom, and the end is fixedly connected to a boom rear ear plate.

[0011] Furthermore, the rear ear plate of the boom is located above the boom.

[0012] Furthermore, a U-shaped groove is provided on the rear ear plate of the boom, and the other end of the boom cylinder is located in the U-shaped groove and is rotatably connected to the rear ear plate of the boom.

[0013] Furthermore, there is a set distance between the upper surface of the boom and the boom cylinder.

[0014] Furthermore, two boom cylinder hoses are provided, one end of each boom cylinder hose is connected to the main oil circuit of the excavator, and the other end is connected to the boom cylinder.

[0015] Furthermore, the boom cylinder hose passes between the two boom upper ear plates and extends to below the boom cylinder.

[0016] Furthermore, the end of the boom cylinder hose is connected to the boom cylinder from below the boom cylinder.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model extends one end of the boom toward one end of the boom, arranges the rear ear plate of the boom above the boom, hinges one end of the boom cylinder with the rear ear plate of the boom, and hinges the other end with the upper ear plate of the boom, so that the boom cylinder and the boom are spaced a certain distance apart, thereby allowing the connecting end of the boom cylinder hose to pass between the two ear plates and extend to below the boom cylinder, and be connected to the boom cylinder from below, thus solving the problem of the hose being connected to the boom cylinder through the outside of the upper ear plate of the boom, causing the pipeline to be too long, and at the same time avoiding the situation where the hose is easily scratched and worn due to the lack of protection on the outside, thereby improving the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the boom and the bucket arm in the embodiment of the utility model;

[0020] Figure 2 It is a top view of the boom and the dipper arm in the embodiment of the utility model;

[0021] Among them, 1. boom; 2. arm; 3. arm cylinder; 4. boom upper ear plate; 5. arm rear ear plate; 6. arm cylinder hose. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] A typical implementation of the present utility model is as follows Figure 1 and Figure 2 As shown, a boom cylinder pipeline arrangement structure includes a boom 1 and a boom 2, one end of the boom 1 is hinged to the boom 2, and the other end is hinged to the rotary platform. The boom 1 is connected to the rotary platform through a boom pin shaft, and a working device is hinged at one end of the boom 2 away from the boom 1.

[0024] The boom 1 is provided with a boom cylinder 3, one end of which is hinged to the boom 1, and the other end is hinged to the boom 2. Specifically, the upper surface of the boom 1 is provided with a boom upper ear plate 4, two boom upper ear plates 4 are provided, the two boom upper ear plates 4 are symmetrically arranged, and the boom upper ear plates 4 are triangular structures. One end of the boom cylinder 3 is located between the two boom upper ear plates 4 and is rotatably connected to the top ends of the two boom upper ear plates 4.

[0025] One end of the boom 2 close to the boom 1 extends toward one side of the boom 1, and the end is fixedly connected to the boom rear ear plate 5, so that the boom rear ear plate 5 is located above the boom 1, and a U-shaped groove is opened on the boom rear ear plate 5, and the other end of the boom cylinder 3 is located in the U-shaped groove and is rotatably connected to the boom rear ear plate 5.

[0026] By fixing the rear ear plate 5 of the boom above the boom 1, one end of the boom cylinder 3 is rotatably connected to the rear ear plate 5 of the boom, and the other end is rotatably connected to the upper end of the upper ear plate 4 of the boom, so that a gap exists between the upper surface of the boom 1 and the boom cylinder 3, which facilitates the layout of the oil supply pipeline.

[0027] A boom cylinder hose 6 is provided on the upper surface of the boom 1. Two boom cylinder hoses 6 are provided and fixedly connected to the boom 1 through an oil pipe clamp 7. One end of each boom cylinder hose 6 is connected to the main oil circuit of the excavator, and the other end is connected to the boom cylinder 3. The two boom cylinder hoses respectively supply oil and return oil to the boom cylinder, thereby realizing the movement of the boom cylinder.

[0028] One end of the boom cylinder hose 6 close to the boom cylinder 3 is placed between the two boom upper ear plates 4, and passes through the two boom upper ear plates 4 to be connected to the boom cylinder 3 from below the boom cylinder 3.

[0029] The utility model extends one end of the boom toward one end of the boom, arranges the rear ear plate of the boom above the boom, hinges one end of the boom cylinder with the rear ear plate of the boom, and hinges the other end with the upper ear plate of the boom, so that the boom cylinder and the boom are spaced a certain distance apart, thereby allowing the connecting end of the boom cylinder hose to pass between the two ear plates and extend to below the boom cylinder, and be connected to the boom cylinder from below, thus solving the problem of the hose being connected to the boom cylinder through the outside of the upper ear plate of the boom, causing the pipeline to be too long, and at the same time avoiding the situation where the hose is easily scratched and worn due to the lack of protection on the outside, thereby improving the service life of the pipeline.

[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bucket cylinder pipeline arrangement structure, characterized in that: It includes a boom, a dipper rod and a dipper rod oil cylinder. Two boom upper ear plates are symmetrically arranged on the upper surface of the boom. One end of the dipper rod oil cylinder is rotatably connected to the two boom upper ear plates, and the other end is rotatably connected to the dipper rod. It also includes a boom oil cylinder hose, one end of which is close to the boom oil cylinder and is placed between two boom upper ear plates.

2. The boom cylinder pipeline arrangement structure according to claim 1, characterized in that: One end of the movable arm is hinged to the bucket rod, and the other end is hinged to the rotating platform.

3. The boom cylinder pipeline arrangement structure according to claim 1, characterized in that: The boom upper ear plate is a triangular structure, and one end of the boom oil cylinder is located between the two boom upper ear plates and is rotatably connected to the top ends of the two boom upper ear plates.

4. The boom cylinder pipeline arrangement structure according to claim 2, characterized in that: One end of the bucket rod close to the boom extends toward one side of the boom, and the end portion is fixedly connected with a bucket rod rear ear plate.

5. The boom cylinder pipeline arrangement structure according to claim 4, characterized in that: The rear ear plate of the bucket arm is located above the boom.

6. The boom cylinder pipeline arrangement structure according to claim 4, characterized in that: A U-shaped groove is provided on the rear ear plate of the boom, and the other end of the boom oil cylinder is located in the U-shaped groove and is rotatably connected to the rear ear plate of the boom.

7. The boom cylinder pipeline arrangement structure according to claim 1, characterized in that: There is a set distance between the upper surface of the boom and the arm cylinder.

8. The boom cylinder pipeline arrangement structure according to claim 1, characterized in that: Two boom cylinder hoses are provided, one end of each boom cylinder hose is connected to the main oil circuit of the excavator, and the other end is connected to the boom cylinder.

9. The arm cylinder pipeline arrangement structure according to claim 7, characterized in that: The boom cylinder hose passes between the two boom upper ear plates and extends to the bottom of the boom cylinder.

10. The boom cylinder pipeline arrangement structure according to claim 9, characterized in that: The end of the boom cylinder hose is connected to the boom cylinder from below the boom cylinder.

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