Movable arm of micro-excavation integrated structure

Abstract

A movable arm of a micro-excavation integrated structure comprises two top plates integrally formed in a bent mode and two side plates of an integrated structure, a box type structure is defined by the top plates and the side plates, a rib plate is arranged in the box type structure, and an open hole for an oil supply pipe to pass through is formed in the rib plate; an integrally-formed upper lug plate is arranged on the upper portion of the side plate, and an integrally-formed lower lug plate is arranged at the lower end of the side plate. The integrated movable arm side plate is formed by cutting a whole plate, the concentricity of the upper lug plate and the lower lug plate is well guaranteed, a welded junction is formed in the inner side of the side plate, and the appearance of the whole movable arm is improved. The reinforcing rib plates are additionally arranged on the lug plates, the use strength is improved, the installation size is guaranteed, the holes are additionally formed in the rib plates in the integrated movable arm, and an oil pipe can conveniently pass through the inner side of the arm.

Description

Technical field:

[0001] The utility model relates to the technical field of excavators, in particular to a movable arm of a micro-excavation integrated structure. Background technology:

[0002] Existing micro excavator arms are all made of multiple plate parts spliced ​​and welded together. The upper and lower ear plates are increased in thickness considering the strength of use and are welded to the main body. This process greatly increases the amount of welding and increases the risk of the three ear plates being out of center. Summary of the invention:

[0003] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides a micro-excavator integrated structure boom, including two integrally bent top plates and two integrally structured side plates, the top plates and the side plates form a box-type structure, a rib plate is arranged inside the box-type structure, and an opening for the oil supply pipe to pass through is arranged on the rib plate;

[0004] An upper ear plate formed in one piece is arranged on the upper part of the side plate, and a lower ear plate formed in one piece is arranged on the lower end of the side plate.

[0005] Furthermore, the side plates and the top plate are connected by welding to produce welds, and the welds are located on the inner sides of the two side plates facing each other.

[0006] Furthermore, the width of the side plate is greater than the distance between the two top plates.

[0007] Furthermore, a lamp cord outlet hole is provided on the side panel.

[0008] Furthermore, the rib plate includes a first rib plate and a second rib plate, the first rib plate is located at the upper part of the movable arm, and the second rib plate is located at the lower part of the movable arm.

[0009] Furthermore, an upper reinforcing rib plate is fixedly connected between the two upper ear plates.

[0010] Furthermore, a lower reinforcing rib plate is fixedly connected between the two lower ear plates.

[0011] Furthermore, an upper ear hole is arranged on the upper ear plate, and a lower ear hole is arranged on the lower ear plate.

[0012] The beneficial effects of the utility model are:

[0013] The integrated boom side plate is cut from a whole sheet of plate. The concentricity of the upper and lower ear plates is well guaranteed, and the weld is on the inside of the side plate, which improves the overall appearance of the boom. Reinforced ribs are added to the ear plates to increase the strength of use and ensure the installation size. The internal ribs of this integrated boom have additional openings to facilitate the passage of the oil pipe from the inside of the arm. A special hole is reserved for the light line at the side headlight position to prevent the light line and the oil pipe from being worn. Description of the drawings:

[0014] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0015] 1. Side panel, 2. Upper ear panel, 3. Lower ear panel, 4. Lamp wire outlet hole, 5. Top panel, 6. Lower ear hole, 7. Upper ear hole, 8. First rib plate, 9. Second rib plate, 10. Upper reinforcing rib plate, 11. Lower reinforcing rib plate. Specific implementation method:

[0016] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 , the utility model is described in more detail.

[0017] The utility model provides a boom of a micro-excavation integrated structure, comprising two integrally bent top plates 5 and two integrally structured side plates 1, the top plate 5 and the side plates 1 forming a box-type structure, a rib plate is arranged inside the box-type structure, and an opening for the oil supply pipe to pass through is arranged on the rib plate; an integrally formed upper ear plate 2 is arranged on the upper part of the side plate 1, and an integrally formed lower ear plate 3 is arranged on the lower end of the side plate 1; the side plate 1 and the top plate 5 are connected by welding to produce a weld, and the weld is located on the inner sides of the two side plates 1 facing each other; the width of the side plate 1 is greater than the distance between the two top plates 5; a lamp line outlet hole 4 is arranged on the side plate 1; the rib plate comprises a first rib plate 8 and a second rib plate 9, the first rib plate 8 is located at the upper part of the boom, and the second rib plate 9 is located at the lower part of the boom; an upper reinforcing rib plate 10 is fixedly connected between the two upper ear plates 2; a lower reinforcing rib plate 11 is fixedly connected between the two lower ear plates 3; an upper ear hole 7 is arranged on the upper ear plate 2, and a lower ear hole 6 is arranged on the lower ear plate 3.

[0018] One embodiment of the present invention is as follows:

[0019] The micro-excavator integrated structure boom includes two integrally bent top plates 5 and two integrally structured side plates 1. The side plates 1 are integrally cut from a whole sheet of plate by laser cutting, which ensures the concentricity of the two holes and optimizes the welding process. The concentricity of the upper and lower ear plates 3 is well guaranteed, and the weld is on the inner side of the side plate 1, which improves the overall appearance of the boom.

[0020] The top plate 5 and the side plate 1 form a box-type structure, and a rib plate is arranged inside the box-type structure. The rib plate includes a first rib plate 8 and a second rib plate 9. The first rib plate 8 is located at the upper part of the boom, and the second rib plate 9 is located at the lower part of the boom. The first rib plate 8 and the second rib plate 9 are provided with openings for the oil pipe to pass through, so as to facilitate the oil pipe to pass through the inner side of the arm;

[0021] An integrally formed upper ear plate 2 is provided on the upper part of the side plate 1, and an integrally formed lower ear plate 3 is provided on the lower end of the side plate 1. An upper ear hole 7 is provided on the upper ear plate 2, and a lower ear hole 6 is provided on the lower ear plate 3. The upper ear plate 2 and the lower ear plate 3 are both integral structures with the side plate 1, and the concentricity of the upper ear plate 2 and the lower ear plate 3 is well guaranteed. The weld is on the inner side of the side plate 1, which improves the overall appearance of the boom.

[0022] A lamp wire outlet hole 4 is specially reserved at the side headlight position to prevent the lamp wire and the oil pipe from being worn.

[0023] An upper reinforcing rib plate 10 is fixedly connected between the two upper ear plates 2, and a lower reinforcing rib plate 11 is fixedly connected between the two lower ear plates 3, which increases the use strength and ensures the installation size.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable arm with a micro-excavation integrated structure, characterized in that: It includes two integrally bent top plates and two integrally structured side plates, wherein the top plate and the side plates form a box-type structure, a rib plate is arranged inside the box-type structure, and an opening for the oil supply pipe to pass through is arranged on the rib plate; An upper ear plate formed in one piece is arranged on the upper part of the side plate, and a lower ear plate formed in one piece is arranged on the lower end of the side plate.

2. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: The side plates and the top plate are connected by welding to generate a weld, and the weld is located on the inner sides of the two side plates facing each other.

3. The movable arm of the micro-excavation integrated structure according to claim 2 is characterized in that: The width of the side plate is greater than the distance between the two top plates.

4. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: The side plate is provided with a lamp wire outlet hole.

5. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: The rib plate includes a first rib plate and a second rib plate, wherein the first rib plate is located at the upper portion of the movable arm, and the second rib plate is located at the lower portion of the movable arm.

6. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: An upper reinforcing rib plate is fixedly connected between the two upper ear plates.

7. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: A lower reinforcing rib plate is fixedly connected between the two lower ear plates.

8. The movable arm of the micro-excavation integrated structure according to claim 1 is characterized in that: The upper ear plate is provided with an upper ear hole, and the lower ear plate is provided with a lower ear hole.

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