Mining adjusting arm

Abstract

The utility model relates to a mining adjusting arm which comprises a cylindrical insulating plug, a connecting column is formed at the rear end of the insulating plug, a plurality of annularly distributed electrode connecting pipes are inserted and fixed in the insulating plug close to the outer ring of the insulating plug, and the rear ends of the electrode connecting pipes are inserted in the connecting column. An annular press-fitting groove communicated with the electrode connecting pipe is formed in the outer wall of the connecting column, the insulating plug is sleeved with a protective shell in an inserted mode, the protective shell comprises a front protective sleeve fixed to the insulating plug in an inserted mode, a conical transition pipe is formed at the rear end of the front protective sleeve, and a connecting pipe is formed at the rear end of the transition pipe. A conical connector is formed in the inner wall of a pipe opening of the connecting pipe. The structure is simple and compact, the assembly is convenient and fast, and the assembled quick plug has good insulation and waterproof effects.

Description

Technical field:

[0001] The utility model relates to the technical field of adjusting arms, and more specifically to an adjusting arm for mining. Background technology:

[0002] At present, the function of the brake adjustment arm is to adjust the brake clearance, which refers to the adjustment of the clearance between the brake drum and the brake lining, which are the friction pair components of the brake. At present, mining vehicles are generally equipped with brake adjustment arms, which are also referred to as mining adjustment arms. Compared with the brake adjustment arms of ordinary vehicles, mining adjustment arms are larger, and their main structure is generally cast iron parts. The strength of cast iron parts is not as high as that of alloy parts, so bushings are generally installed in the connecting holes at the end of the adjustment arms, and the connecting shafts are installed in the bushings; in order to avoid the bushings rotating with the connecting shafts to wear the connecting holes of the adjustment arms, the diameter of the outer wall of the bushings is generally slightly larger than the aperture of the connecting holes on the adjustment arms, and the bushings are pressed into the adjustment arms by press-fitting, and the bushings are likely to be deformed during the process of press-fitting, so it is proposed to freeze the bushings by thermal expansion and contraction to reduce their external dimensions, but the entire installation process is more troublesome; therefore, a structure that will not damage the bushings and is convenient for installation is required. Utility model content:

[0003] The purpose of the utility model is to provide a mining adjustment arm to address the deficiencies of the prior art. The utility model uses a reinforcement structure based on multi-point positioning support to achieve installation of a bushing on the adjustment arm. The bushing will not be deformed and the installation process is convenient.

[0004] A mining adjustment arm comprises a main body of the adjustment arm, a connection hole is formed at the end of the main body, a bushing is inserted in the connection hole, and two ends of the bushing extend out of the main body and are connected to a reinforcement component;

[0005] The reinforcement component includes a lower lining plate and an upper lining plate which are respectively against the two opposite end faces of the main body and are triangular in shape. The lower end of the bushing is inserted and fixed on one end of the lower lining plate, and the upper end is inserted on the upper lining plate. The other two ends of the lower lining plate are respectively fixed with rivet columns, and the upper ends of the rivet columns pass through the main body and are riveted and fixed on the upper lining plate.

[0006] Preferably, the riveted columns and bushings are respectively located at three ends of the upper lining plate, and the upper and lower end surfaces of the bushings are respectively flush with the upper end surface of the upper lining plate and the lower end surface of the lower lining plate.

[0007] Preferably, a plug hole opposite to the riveting column is formed on the main body, and the diameter of the connecting hole on the main body is equal to the diameter of the outer wall of the bushing.

[0008] Preferably, the upper lining plate and the lower lining plate are respectively formed with positioning holes opposite to the bushing, the aperture of the positioning hole is equal to the diameter of the outer wall of the bushing, and the lower end of the bushing is inserted into the positioning hole of the lower lining plate and fixed to the lower lining plate by glue.

[0009] Preferably, the upper end of the bushing is inserted into the positioning hole of the upper lining plate and is glued and fixed to the upper lining plate by glue.

[0010] Preferably, the end of the main body is semicircular, one end of the lower lining plate and the upper lining plate are both semicircular, and the center of the arc at the end of the lower lining plate and the upper lining plate and the center of the arc at the end of the main body are both located on the central axis of the bushing.

[0011] The beneficial effects of the utility model are:

[0012] The adjusting arm adopts a reinforcement structure with multi-point positioning support to realize the installation of the bushing on the adjusting arm, and the bushing will not be deformed and the installation process is convenient. Description of the drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model from a top view;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the internal reinforcement component of the utility model;

[0015] Figure 3 It is a side structural schematic diagram of the internal reinforcement component of the utility model.

[0016] In the figure: 1. Insulating plug; 11. Connecting hole; 2. Bushing; 3. Reinforcement assembly; 31. Lower lining plate; 32. Upper lining plate; 33. Riveted column. Specific implementation method:

[0017] Example: See Figure 1 , 2 As shown in FIG. 3 , a mining adjustment arm comprises a main body 1 of the adjustment arm, a connecting hole 11 is formed at the end of the main body 1, a bushing 2 is inserted into the connecting hole 11, and both ends of the bushing 2 extend out of the main body 1 and are connected to a reinforcement component 3;

[0018] The reinforcement component 3 includes a lower lining plate 31 and an upper lining plate 32 which are respectively against the two opposite end surfaces of the main body 1 and are triangular in shape. The lower end of the bushing 2 is inserted and fixed to one end of the lower lining plate 31, and the upper end is inserted on the upper lining plate 32. The other two ends of the lower lining plate 31 are respectively fixed with rivet columns 33. The upper ends of the rivet columns 33 pass through the main body 1 and are riveted and fixed to the upper lining plate 32.

[0019] The riveted columns 33 and the bushing 2 are respectively located at three ends of the upper lining plate 32 , and the upper and lower end surfaces of the bushing 2 are respectively flush with the upper end surface of the upper lining plate 32 and the lower end surface of the lower lining plate 31 .

[0020] The main body 1 is formed with an insertion hole opposite to the riveting column 33 , and the diameter of the connecting hole 11 on the main body 1 is equal to the diameter of the outer wall of the bushing 2 .

[0021] The upper liner 32 and the lower liner 31 are respectively formed with positioning holes opposite to the bushing 2, the aperture of the positioning hole is equal to the diameter of the outer wall of the bushing 2, and the lower end of the bushing 2 is inserted into the positioning hole of the lower liner 31 and fixed to the lower liner 31 by glue.

[0022] The upper end of the bushing 2 is inserted into the positioning hole of the upper lining plate 32 and is glued and fixed to the upper lining plate 32 by glue.

[0023] The end of the main body 1 is semicircular, and one end of the lower lining plate 31 and the upper lining plate 32 are both semicircular. The center of the arc at the end of the lower lining plate 31 and the upper lining plate 32 and the center of the arc at the end of the main body 1 are both located on the central axis of the bushing 2; the two side edges of the semicircular ends of the lower lining plate 31 and the upper lining plate 32 are respectively parallel to the two side edges of the end of the main body 1, and the overall outer dimensions of the lower lining plate 31 and the upper lining plate 32 are smaller than the outer dimensions of the end of the main body 1.

[0024] Working principle: The utility model is a mining adjustment arm, and the mining adjustment arm can be directly inserted into the connecting hole 11 using the bushing 2, without the need for press-fitting or freezing;

[0025] The bushing 2 is fixedly connected to the adjusting arm based on the lower lining plate 31 and the upper lining plate 32 (fixing by gluing is also convenient), and the lower lining plate 31 and the upper lining plate 32 are riveted and fixedly connected to the adjusting arm through the rivet column 33, which is also convenient to install; and two groups of rivet columns 33 and a bushing 2 are provided on the lower lining plate 31 and the upper lining plate 32, and the bushing 2 and the rivet column 33 can serve as three connection nodes between the lower lining plate 31, the upper lining plate 32 and the adjusting arm, and the connection strength is high;

[0026] Moreover, the reinforcement component 3 can also adjust the overall strength of the end of the arm.

[0027] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A mining adjustment arm, comprising a main body (1) of the adjustment arm, a connecting hole (11) is formed at the end of the main body (1), a bushing (2) is inserted into the connecting hole (11), and the characteristics are: Two ends of the bushing (2) extend out of the main body (1) and are connected to reinforcement components (3); The reinforcement component (3) comprises a lower lining plate (31) and an upper lining plate (32) which are respectively against two opposite end surfaces of the main body (1) and are triangular in shape; the lower end of the bushing (2) is plugged and fixed to one end of the lower lining plate (31), and the upper end is plugged onto the upper lining plate (32); the other two ends of the lower lining plate (31) are respectively fixed with rivet columns (33); the upper ends of the rivet columns (33) pass through the main body (1) and are riveted and fixed to the upper lining plate (32).

2. A mining adjustment arm according to claim 1, characterized in that: The riveted columns (33) and the bushings (2) are respectively located at three ends of the upper lining plate (32), and the upper and lower end surfaces of the bushings (2) are respectively flush with the upper end surface of the upper lining plate (32) and the lower end surface of the lower lining plate (31).

3. A mining adjustment arm according to claim 1, characterized in that: The main body (1) is formed with an insertion hole opposite to the riveting column (33), and the hole diameter of the connecting hole (11) on the main body (1) is equal to the diameter of the outer wall of the bushing (2).

4. A mining adjustment arm according to claim 2, characterized in that: The upper lining plate (32) and the lower lining plate (31) are respectively formed with positioning holes opposite to the bushing (2), the aperture of the positioning hole is equal to the diameter of the outer wall of the bushing (2), and the lower end of the bushing (2) is inserted into the positioning hole of the lower lining plate (31) and is glued and fixed to the lower lining plate (31) by glue.

5. A mining adjustment arm according to claim 4, characterized in that: The upper end of the bushing (2) is inserted into the positioning hole of the upper lining plate (32) and is glued and fixed to the upper lining plate (32) by glue.

6. A mining adjustment arm according to claim 1, characterized in that: The end of the main body (1) is semicircular, one end of the lower lining plate (31) and the upper lining plate (32) are both semicircular, and the center of the arc at the end of the lower lining plate (31) and the upper lining plate (32) and the center of the arc at the end of the main body (1) are both located on the central axis of the bushing (2).

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