Detection tool for semicircular cavity of counterweight iron

Abstract

The utility model relates to the field of detection tools, in particular to a counterweight iron semicircular cavity detection tool, which comprises a support, positioning holes are arranged at four corners of the support, a detection plate is arranged below the support, rotating shafts are arranged at two ends of the detection plate, the rotating shafts at two ends are coaxially arranged, and the positioning holes are arranged in the positioning holes. The rotating shaft is rotationally connected to a shaft seat, and the shaft seat is fixed to the support. According to the utility model, the contour of the semicircular cavity of the counterweight iron can be comprehensively detected, the working efficiency is improved, the manufacturing cost is reduced, and the counterweight iron can be detected more conveniently and quickly.

Description

Technical Field

[0001] This utility model relates to the field of testing tools, and in particular to a testing tool for a counterweight semi-circular cavity. Background Technology

[0002] Counterweights are devices that provide counterweight functionality in general-purpose power equipment (a battery is installed inside the intermediate cavity, which can also provide a power source for the equipment), such as... Figure 1 The counterweight shown is a cuboid workpiece with a cylindrical semi-circular cavity. It is divided into upper and lower halves (upper counterweight base and lower counterweight base). Cavities are provided on the opposite surfaces of the upper and lower bases. The cavity is composed of a semi-cylindrical surface in the middle and arc-shaped surfaces at both ends (which can be simply referred to as a cylindrical semi-circular cavity). Currently, only a detection plate is used to compare a certain section of the cavity, which makes it difficult to compare the overall contour of the cavity and has the problem of low detection efficiency. Therefore, this detection device was developed to improve the detection of the counterweight cavity. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a tool for detecting the semi-circular cavity of a counterweight. This utility model adopts the following technical solution:

[0004] This utility model provides a counterweight semi-circular cavity detection tool, including a bracket, with positioning holes at each of the four corners of the bracket, a detection plate at the bottom of the bracket, and a rotating shaft at both ends of the detection plate. The rotating shafts at both ends are arranged coaxially and are rotatably connected to a bearing seat, which is fixed to the bracket.

[0005] Preferably, the bracket is H-shaped, with clearance openings at both ends, and the two ends of the detection plate extend upward to the clearance openings. The bearing is fixed to the top surface of the bracket and is arranged corresponding to the clearance openings.

[0006] Preferably, the bracket has multiple perforated holes in its middle section.

[0007] Preferably, the detection plate includes a straight section in the middle, and arc-shaped sections are provided at both ends of the straight section, with the rotating shaft fixed at the upper end of the arc-shaped sections.

[0008] Preferably, both the straight segment and the outer edge of the arc segment are chamfered.

[0009] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0010] This invention enables comprehensive inspection of the contour of the semi-circular cavity of the counterweight, improving work efficiency, reducing manufacturing costs, and making the counterweight inspection operation more convenient and faster. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of the counterweight base described in the background art;

[0013] Figure 2 This is a structural schematic diagram of the counterweight semi-circular cavity detection tool of this utility model in its first state.

[0014] Figure 3 This is a schematic diagram of the structure of the counterweight semi-circular cavity detection tool of this utility model in state two.

[0015] Figure 4 This is a schematic diagram illustrating the installation and use of the counterweight semi-circular cavity testing tool of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Positioning hole; 3. Detection plate; 301. Straight segment; 302. Arc segment; 4. Rotating shaft; 5. Shaft seat; 6. Clearance opening; 7. Hole. Detailed Implementation

[0017] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figure 2 As shown, this embodiment discloses a counterweight semi-circular cavity detection tool, including a bracket 1. The bracket 1 has positioning holes 2 at each of the four corner positions. The upper and lower bases of the counterweight have two positioning pin holes at their diagonal sides on the side with the cylindrical semi-circular cavity, which are used to position and cooperate with the positioning holes 2.

[0019] A detection plate 3 is provided below the bracket 1. A rotating shaft 4 is fixed at both ends of the detection plate 3. The rotating shafts 4 at both ends are arranged coaxially. The detection plate 3 can swing around the rotating shaft 4. The rotating shaft 4 is rotatably connected to the bearing seat 5 through a bearing assembly. The bearing seat 5 is fixed to the bracket 1 by bolts.

[0020] In this embodiment, the bracket 1 is H-shaped, and both ends of the bracket 1 are provided with clearance openings 6. Both ends of the detection plate 3 extend upward to the clearance openings 6. The bearing seat 5 is fixed on the top surface of the bracket 1 and is arranged corresponding to the clearance openings 6.

[0021] In this embodiment, the bracket 1 has multiple hollow holes 7 in the middle to reduce the overall weight.

[0022] like Figure 3As shown, the detection plate 3 includes a straight section 301 in the middle, and arc sections 302 are provided at both ends of the straight section 301. The rotating shaft 4 is fixed to the upper end of the arc section 302 by bolt assembly. The detection plate 3 is made of 5mm thick steel plate laser cut and then the detection blade is CNC milled out. That is, chamfers are provided on the outer edges of the straight section 301 and the arc section 302 to ensure the detection accuracy of the detection plate 3.

[0023] like Figure 4 As shown, the working principle of this utility model is as follows:

[0024] In operation, this utility model involves placing the counterweight semi-circular cavity detection tool horizontally on the side of the counterweight upper or lower seat with a cylindrical semi-circular cavity. It is positioned in the diagonal positioning pin holes of the upper or lower seat via positioning holes 2, and then the detection plate 3 swings within the cylindrical semi-circular cavity to achieve overall detection of the counterweight's cylindrical semi-circular cavity profile.

[0025] The test plate 3 in this utility model is a comparison test template. The template is qualified if it swings smoothly in the semi-circular cavity of the cylindrical surface. If it cannot swing smoothly, it needs to be processed until the test plate 3 can swing smoothly. However, the swing gap is also required and must be controlled within 1.5mm. A feeler gauge can be used to assist in the measurement.

[0026] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A counterweight semi-circular cavity detection tool, characterized in that: The bracket (1) includes a positioning hole (2) at each of the four corners of the bracket (1), a detection plate (3) is provided below the bracket (1), and a rotating shaft (4) is provided at both ends of the detection plate (3). The rotating shafts (4) at both ends are arranged coaxially, and the rotating shafts (4) are rotatably connected to the bearing seat (5). The bearing seat (5) is fixed on the bracket (1).

2. The counterweight semi-circular cavity detection tool according to claim 1, characterized in that: The bracket (1) is H-shaped, and both ends of the bracket (1) are provided with clearance openings (6). Both ends of the detection plate (3) extend upward to the clearance openings (6). The bearing seat (5) is fixed to the top surface of the bracket (1) and is arranged corresponding to the clearance openings (6).

3. The counterweight semi-circular cavity detection tool according to claim 2, characterized in that: The bracket (1) has multiple hollow holes (7) in the middle.

4. The counterweight semi-circular cavity detection tool according to claim 1, characterized in that: The detection plate (3) includes a straight section (301) in the middle, and arc sections (302) are provided at both ends of the straight section (301). The rotating shaft (4) is fixed at the upper end of the arc section (302).

5. The counterweight semi-circular cavity detection tool according to claim 4, characterized in that: Both the straight segment (301) and the arc segment (302) have chamfered edges on their outer edges.

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