Moving arm of excavator

Abstract

The utility model discloses an excavator movable arm which comprises a main body, a mounting hole is formed in the main body, a fixing pipe is arranged on one side of the main body, an oil way pipe is arranged in the fixing pipe, a first positioning piece and a second positioning piece are arranged in the fixing pipe, an anti-skid pad is arranged on one side of the first positioning piece, and an electric telescopic rod is arranged on one side of the fixing pipe. A reinforcing assembly is arranged on the inner wall of the main body, an anti-skid block is arranged on one side of the anti-skid pad, and a plurality of sets of electric telescopic rods are symmetrically arranged at the top and the bottom of the fixing pipe and electrically connected with the same external controller. By arranging the first positioning piece, the second positioning piece, the non-slip mat, the electric telescopic rod, the non-slip block and the reinforcing assembly, the fixing pipe of the movable arm of the excavator can meet the requirements of oil-way pipes of different specifications and sizes, the applicability of the fixing pipe of the movable arm of the excavator can be improved, and the bearing strength of the side plate of the movable arm of the excavator can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a movable arm of an excavator. Background Technique

[0002] The movable arm of an excavator is the mechanical core of the excavator. It mainly controls the bucket rod to move through a hydraulic oil circuit, so as to complete actions such as flipping and the bucket.

[0003] The prior art has the following deficiencies: In the prior art, in the "movable arm of an excavator" with the application number 202220129240.1, "it includes a main body and a hydraulic cylinder, and also includes a control oil circuit. The control oil circuit is buried in a fixed pipe, the fixed pipe is fixedly connected to the surface of the main body, a protective shell is arranged on the surface of the fixed pipe, a locking plate is arranged inside the protective shell, auxiliary rods are arranged on both sides of the protective shell, a displacement component for driving the locking plate to displace in the direction close to the control oil circuit is arranged inside the protective shell, and a matching component for driving the two auxiliary rods to deflect synchronously in the direction close to the control oil circuit is also included. The displacement component includes a threaded rod, a displacement block is threadedly connected to the rod arm of the threaded rod, and a sleeve is fixedly connected to the bottom surface of the displacement block";

[0004] The above-mentioned device solves the problem that it is relatively difficult to disassemble the oil pipeline in the traditional method and inconvenient for maintenance by setting a fixed pipe, a protective shell, a locking plate, etc. However, the pipe orifice size of the fixed pipe in the above-mentioned device is usually fixed and difficult to adjust, and different sizes of oil pipelines have different requirements for the pipe orifice size of the fixed pipe. The fixed pipe of the above-mentioned device is difficult to adapt to the requirements of oil pipelines of different specifications, and the applicability of the fixed pipe of the device can be further improved. Moreover, the existing movable arm of an excavator is usually assembled and welded by multiple groups of plates and is in a hollow state inside. Under high-intensity excavation operations, the movable arm of the excavator is prone to stress concentration, resulting in cracks in the side plates, which in turn affects the service life of the movable arm of the excavator. The bearing strength of the movable arm of the excavator can be further improved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a movable arm of an excavator to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A movable arm of an excavator, including a main body, an installation hole is opened on the main body, a fixed pipe is arranged on one side of the main body, an oil pipeline is arranged inside the fixed pipe, a first positioning member and a second positioning member are arranged inside the fixed pipe, an anti-slip pad is arranged on one side of the first positioning member, an electric telescopic rod is arranged on one side of the fixed pipe, a strengthening component is arranged on the inner wall of the main body, and an anti-sliding block is arranged on one side of the anti-slip pad;

[0007] The reinforcing component includes a first reinforcing rod and a second reinforcing rod. A first reinforcing rod is arranged on one side of the inner wall of the main body, and a second reinforcing rod is arranged on one side of the inner wall of the main body.

[0008] As a preferred technical solution of the present invention, the fixed pipe is fixedly installed on one side of the main body, and the pipe diameter of the fixed pipe is larger than that of a common oil pipeline.

[0009] As a preferred technical solution of the present invention, electric telescopic rods are fixedly installed at the top and bottom of the fixed pipe, and the telescopic ends of the two groups of electric telescopic rods extend into the fixed pipe.

[0010] As a preferred technical solution of the present invention, both the first positioning member and the second positioning member are integrally arc-shaped. The telescopic ends of the two groups of electric telescopic rods are respectively fixedly installed on the outer sides of the first positioning member and the second positioning member. A plurality of groups of electric telescopic rods are symmetrically arranged at the top and bottom of the fixed pipe, and the plurality of groups of electric telescopic rods are electrically connected to the same external controller.

[0011] As a preferred technical solution of the present invention, the anti-slip pad is fixedly installed on the inner side of the first positioning member. A plurality of anti-slip blocks are fixedly installed on one side of the anti-slip pad, and the anti-slip blocks are integrally semi-circular. The specific materials of the anti-slip pad and the anti-slip blocks are both soft silicone. The first positioning member and the second positioning member have the same structure and are symmetrically arranged. The oil pipeline is placed between the first positioning member and the second positioning member.

[0012] As a preferred technical solution of the present invention, a plurality of groups of first reinforcing rods and second reinforcing rods are fixedly installed on both sides of the inner wall of the main body and are arranged alternately. A triangular space is formed between each group of the first reinforcing rod and the corresponding second reinforcing rod and the top or bottom of the inner wall of the main body.

[0013] Compared with the prior art, the present invention provides a boom of an excavator, having the following beneficial effects:

[0014] 1. For this boom of the excavator, by setting the first positioning member, the second positioning member, the anti-slip pad, the electric telescopic rod, and the anti-slip block, the user can adjust the size of the pipe orifice of the fixed pipe, that is, the size of the circular orifice formed between the first positioning member and the second positioning member, according to the requirements of oil pipelines of different specifications and sizes. And only by controlling the movement of the telescopic ends of the electric telescopic rods through the controller can the positions of the first positioning member and the second positioning member be adjusted. The adjustment of the pipe orifice size of the fixed pipe is relatively convenient, and thus the requirements of oil pipelines of different specifications and sizes can be adapted, improving the applicability of the fixed pipe of the equipment;

[0015] 2. The boom of the excavator, by setting the strengthening component, since a triangular space is formed between each first strengthening rod, the corresponding second strengthening rod and the top or bottom of the inner wall of the main body, according to the principle of the stability of the triangle, the strengthening component can improve the bearing strength of the two side plates of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is the present invention Figure 1 amplified schematic diagram of the structure at A;

[0018] Figure 3 is a schematic diagram of the structure of the first positioning member of the present invention;

[0019] Figure 4 is a schematic diagram of the cross-sectional structure of the main body of the present invention.

[0020] In the figure: 1. Main body; 2. Mounting hole; 3. Fixed pipe; 4. Oil pipeline; 5. First positioning member; 6. Second positioning member; 7. Anti-slip pad; 8. Electric telescopic rod; 9. Strengthening component; 901. First strengthening rod; 902. Second strengthening rod; 10. Anti-sliding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , in this embodiment: A boom of an excavator includes a main body 1, a mounting hole 2 is opened on the main body 1, the mounting hole 2 can facilitate the installation of the main body 1, a fixed pipe 3 is arranged on one side of the main body 1, an oil pipeline 4 is arranged in the fixed pipe 3, the oil pipeline 4 can provide hydraulic oil for the hydraulic cylinder of the main body 1, a first positioning member 5 and a second positioning member 6 are arranged in the fixed pipe 3, an anti-slip pad 7 is arranged on one side of the first positioning member 5, an electric telescopic rod 8 is arranged on one side of the fixed pipe 3, a strengthening component 9 is arranged on the inner wall of the main body 1, and an anti-sliding block 10 is arranged on one side of the anti-slip pad 7, and the anti-sliding block 10 can improve the anti-slip property of the anti-slip pad 7;

[0023] The strengthening component 9 includes a first strengthening rod 901 and a second strengthening rod 902. The strengthening component 9 can improve the bearing strength of the side plates of the main body 1. A first strengthening rod 901 is arranged on one side of the inner wall of the main body 1, and a second strengthening rod 902 is arranged on one side of the inner wall of the main body 1.

[0024] In this embodiment, the fixed pipe 3 is fixedly installed on one side of the main body 1, and the diameter of the fixed pipe 3 is larger than that of the common oil pipeline 4;

[0025] Specifically, the fixed pipe 3 facilitates the installation of the oil pipeline 4;

[0026] In this embodiment, electric telescopic rods 8 are fixedly installed at both the top and bottom of the fixed pipe 3, and the telescopic ends of the two groups of electric telescopic rods 8 extend into the fixed pipe 3;

[0027] Specifically, the electric telescopic rod 8 facilitates the adjustment of the positions of the first positioning member 5 and the second positioning member 6;

[0028] In this embodiment, both the first positioning member 5 and the second positioning member 6 are integrally arc-shaped. The telescopic ends of the two groups of electric telescopic rods 8 are respectively fixedly installed on the outer sides of the first positioning member 5 and the second positioning member 6. A plurality of groups of electric telescopic rods 8 are symmetrically arranged at the top and bottom of the fixed pipe 3, and the plurality of groups of electric telescopic rods 8 are electrically connected to the same external controller;

[0029] Specifically, the first positioning member 5 and the second positioning member 6 facilitate the fixing of the oil pipeline 4;

[0030] In this embodiment, the anti-slip pad 7 is fixedly installed on the inner side of the first positioning member 5. A plurality of groups of anti-slip blocks 10 are fixedly installed on one side of the anti-slip pad 7, and the anti-slip blocks 10 are integrally semi-circular. The specific materials of the anti-slip pad 7 and the anti-slip blocks 10 are both soft silicone. The first positioning member 5 and the second positioning member 6 have the same structure and are symmetrically arranged, and the oil pipeline 4 is placed between the first positioning member 5 and the second positioning member 6;

[0031] Specifically, the anti-slip pad 7 can make the first positioning member 5 and the second positioning member 6 fit more closely to the oil pipeline 4 and improve the anti-slip property inside the first positioning member 5 and the second positioning member 6;

[0032] In this embodiment, a plurality of groups of first reinforcing bars 901 and second reinforcing bars 902 are fixedly installed on both sides of the inner wall of the main body 1 and are staggered. A triangular space is formed between each group of first reinforcing bars 901 and the corresponding second reinforcing bars 902 and the top or bottom of the inner wall of the main body 1;

[0033] Specifically, the first reinforcing bars 901 and the second reinforcing bars 902 can improve the bearing strength of the side plates of the main body 1.

[0034] Working principle and usage process of the utility model: Through the relevant controller, the telescopic ends of several groups of electric telescopic rods 8 are controlled to move, so that the size of the circular opening formed between the first positioning member 5 and the second positioning member 6 is larger than the size of the oil pipeline 4 to be installed. The oil pipeline 4 is placed between the first positioning member 5 and the second positioning member 6. Through the relevant controller, the telescopic ends of several groups of electric telescopic rods 8 are controlled to move, so that the first positioning member 5 and the second positioning member 6 are respectively closely attached to the top and bottom of the oil pipeline 4. The anti-slip pads 7 can make the first positioning member 5 and the second positioning member 6 more closely attached to the oil pipeline 4 and improve the anti-slip property inside the first positioning member 5 and the second positioning member 6. The anti-slip blocks 10 can improve the anti-slip property of the anti-slip pads 7, thereby preventing the oil pipeline 4 from sliding and fixing the oil pipeline 4. The user can adjust the size of the pipe orifice of the fixed pipe 3, that is, the size of the circular opening formed between the first positioning member 5 and the second positioning member 6, according to the requirements of oil pipelines 4 with different specifications and sizes, so as to adapt to the requirements of oil pipelines 4 with different specifications and sizes and improve the applicability of the fixed pipe 3 of the device;

[0035] Since a triangular space is formed between each group of first reinforcing rods 901, the corresponding second reinforcing rods 902 and the top or bottom of the inner wall of the main body 1, according to the principle of the stability of a triangle, the reinforcing assembly 9 can improve the bearing strength of the two side plates of the main body 1.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An excavator boom, comprising a main body (1), a mounting hole (2) being provided on the main body (1), a fixing pipe (3) being provided on one side of the main body (1), an oil pipe (4) being provided inside the fixing pipe (3), characterized in that: A first positioning member (5) and a second positioning member (6) are arranged in the fixed tube (3); an anti-skid pad (7) is arranged on one side of the first positioning member (5); an electric telescopic rod (8) is arranged on one side of the fixed tube (3); a reinforcing component (9) is arranged on the inner wall of the main body (1); and an anti-slip block (10) is arranged on one side of the anti-slip pad (7); The reinforcing assembly (9) comprises a first reinforcing rod (901) and a second reinforcing rod (902); the first reinforcing rod (901) is arranged on one side of the inner wall of the main body (1); and the second reinforcing rod (902) is arranged on one side of the inner wall of the main body (1).

2. The excavator boom according to claim 1, characterized in that: The fixed tube (3) is fixedly mounted on one side of the main body (1), and the diameter of the fixed tube (3) is larger than the diameter of a common oil pipe (4).

3. The excavator boom according to claim 1, characterized in that: Electric telescopic rods (8) are fixedly mounted on the top and bottom of the fixed tube (3), and the telescopic ends of the two groups of electric telescopic rods (8) extend into the fixed tube (3).

4. The excavator boom according to claim 1, characterized in that: The first positioning member (5) and the second positioning member (6) are both in an arc shape as a whole; the telescopic ends of the two groups of electric telescopic rods (8) are respectively fixedly mounted on the outside of the first positioning member (5) and the second positioning member (6); a plurality of groups of electric telescopic rods (8) are symmetrically arranged at the top and bottom of the fixed tube (3); and the plurality of groups of electric telescopic rods (8) are all electrically connected to the same external controller.

5. The excavator boom according to claim 1, characterized in that: The anti-skid pad (7) is fixedly mounted on the inner side of the first positioning member (5); a plurality of anti-sliding blocks (10) are fixedly mounted on one side of the anti-skid pad (7); and the anti-sliding blocks (10) are semicircular in shape as a whole; the specific materials of the anti-skid pad (7) and the anti-sliding blocks (10) are both soft silicone; the first positioning member (5) and the second positioning member (6) have the same structure and are symmetrically arranged; and the oil pipe (4) is placed between the first positioning member (5) and the second positioning member (6).

6. The excavator boom according to claim 1, characterized in that: A plurality of groups of first reinforcing rods (901) and second reinforcing rods (902) are fixedly mounted on both sides of the inner wall of the main body (1), and the two groups are arranged in a staggered manner, and a triangular space is formed between each group of the first reinforcing rods (901), the corresponding second reinforcing rods (902) and the top or bottom of the inner wall of the main body (1).

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