Underground mine car steering column fixing device

Abstract

The utility model relates to the technical field of underground mine cars, and provides an underground mine car steering column fixing device which comprises a fixing support, the fixing support comprises a bearing plate and two connecting plates, the bearing plate is fixed on the inner wall of a cab, the number of the connecting plates is two, and the two connecting plates are vertically fixed at the two ends of the bearing plate respectively. An adjusting hole is formed in the connecting plate, and the adjusting hole is a strip-shaped hole formed in the length direction of the connecting plate; a clamping block is connected between the two connecting plates, a clamping hole is formed in the clamping block, first threaded holes are formed in the end faces, making contact with the connecting plates on the two sides, of the clamping block, first bolts are arranged in the adjusting holes in a penetrating mode, and the first bolts are matched with the first threaded holes in a threaded mode and penetrate into the first threaded holes. The steering column fixing device has the advantages that the steering column fixing device can be independently machined and can be stably installed on the side wall of a cab, the steering column is fixed, meanwhile, certain interchangeability is achieved, and the steering column fixing device can adapt to installation and fixation of various steering columns with different concentricity requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of underground mining vehicles, and in particular to a steering column fixing device for underground mining vehicles. Background Art

[0002] The cab of an underground shovel truck has a relatively high sheet metal thickness, resulting in poor bending accuracy of the sheet metal parts during its manufacturing process. Therefore, it is impossible to produce a fixture that meets the installation accuracy of the steering column using ordinary processing methods. The entire cab is large in size, and the use of high-precision processing methods will greatly increase the processing cost. Even if the fixture is processed with high precision, it cannot meet the requirements of various types of steering columns due to the fixed concentricity and position, and is not interchangeable. Utility Model Content

[0003] The utility model provides a steering column fixing device for an underground mining vehicle, which is processed separately and can be stably installed on the side wall of a cab, thereby fixing the steering column and having certain interchangeability, and can adapt to the installation and fixing of steering columns with various concentricity requirements.

[0004] To this end, the present application provides a steering column fixing device for an underground mining vehicle, and the technical solution adopted is as follows:

[0005] The fixing device is applied to the interior of the cab of an underground mining truck, and includes a fixing bracket, which is a U-shaped structure, including a supporting plate and a connecting plate, wherein the supporting plate is fixed to the inner wall of the cab, and the connecting plate has two connecting plates that are respectively and vertically fixed at both ends of the supporting plate, and an adjustment hole is provided on the connecting plate, and the adjustment hole is a strip hole arranged along the length direction of the connecting plate; a clamping block is rotatably connected between the two connecting plates, and the clamping block is provided with a clamping hole matching the shape of the side wall of the steering column, and threaded holes are provided on the end faces of the clamping block that contact the connecting plates on both sides, and a bolt is passed through the inside of the adjusting hole, and the bolt is threadably matched with the threaded hole and can be inserted therein, and the part of the bolt that passes through the adjusting hole is a smooth surface, and the part that passes through the threaded hole is a threaded surface.

[0006] A further technical solution is that the clamping block can be split into two parts, a clamping part one and a clamping part two, and the splitting line passes through the clamping hole, the threaded hole one is opened on the clamping part one, and the clamping part two is opened with a threaded hole two, and the number of the threaded holes two is multiple and avoids the position of the clamping hole, the threaded hole two penetrates the clamping part two and extends to the clamping part one, and a bolt two matching its thread is passed through the inside of the threaded hole two and the clamping part one and the clamping part two can be locked by the bolt two.

[0007] A further technical solution is that a mounting hole is provided on the support plate, a bolt three is passed through the mounting hole, a threaded hole three matching the thread of the bolt three is provided on the inner wall of the cab, and the bolt three can pass through the threaded hole three to fix the support plate to the inner wall of the cab.

[0008] A further technical solution is that the mounting holes are strip holes arranged along the length direction of the support plate and there are two of them, and a bolt three is passed through each mounting hole.

[0009] A further technical solution is that locking washers are sleeved on the bolt one, bolt two and bolt three.

[0010] A further technical solution is that the connection between the support plate and the connection plate is an arc chamfer.

[0011] A further technical solution is that the end surface of the connecting plate away from the supporting plate is an arc surface.

[0012] The working principle and beneficial effects of this application are:

[0013] 1. The position of the clamping block installed on the connecting plate can be adjusted through the adjustment hole, and the position of the fixed bracket installed on the inner wall of the cab can be adjusted through the installation hole, so as to adapt to more position changes of the steering column during installation.

[0014] 2. The clamping block can rotate on the fixed bracket. When installing the steering column, there is no need to consider the difference in concentricity. It can adapt to the installation of steering columns with different concentricities and meet the interchangeability of products with different installation precision.

[0015] 3. The fixing device can be processed and manufactured separately, and then fixed on the inner wall of the cab. The processing method is simple, cost-saving, and convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing bracket described in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the top view of the clamping block described in the embodiment of the present application;

[0020] Figure 4 This is a schematic side view of the structure of the clamping block described in the embodiment of the present application;

[0021] Figure 5It is a schematic diagram of the structure of the second clamping part described in the embodiment of the present application.

[0022] In the figure: 1. fixing bracket; 11. supporting plate; 111. mounting hole; 112. bolt three; 12. connecting plate; 121. adjusting hole; 13; clamping block; 131. clamping hole; 132. threaded hole one; 133 bolt one; 134. clamping part one; 135. clamping part two; 136. bolt two; 14. locking gasket; 15. arc chamfer; 16. arc surface. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 5 As shown, a device for fixing the steering column of an underground mining vehicle is applied to the interior of a cab of an underground mining vehicle, comprising a fixing bracket 1, wherein the fixing bracket 1 is a U-shaped structure, comprising a support plate 11 and a connecting plate 12, wherein the support plate 11 is fixed to the inner wall of the cab, and the connecting plate 12 has two connecting plates 12 which are respectively and vertically fixed to the two ends of the support plate 11, and an adjusting hole 121 is provided on the connecting plate 12, wherein the adjusting hole 121 is a strip-shaped hole arranged along the length direction of the connecting plate 12; the two connecting plates A clamping block 13 is rotatably connected between the two connecting plates 12, and a clamping hole 131 matching the shape of the side wall of the steering column is provided on the clamping block 13. The end surfaces of the clamping block 13 contacting the connecting plates 12 on both sides are provided with threaded holes 132. A bolt 133 is passed through the adjusting hole 121, and the bolt 133 is threadably matched with the threaded hole 132 and can be passed through it. The portion of the bolt 133 passing through the adjusting hole 121 is a smooth surface, and the portion passing through the threaded hole 132 is a threaded surface.

[0025] When installing the fixing device, first fix the support plate 11 on the inner wall of the cab to fix the fixing bracket 1, insert the steering column into the clamping hole 131, and then fix the clamping block 13 on the connecting plate 12 through the bolt 133 and the threaded hole 132. At this time, the fixing position of the bolt 133 can be adjusted through the adjustment hole 121 to change the position of the clamping block 13.

[0026] Through the adjustment hole 121, the position of the clamping block 13 installed on the connecting plate 12 can be adjusted, and through the installation hole 111, the position of the fixing bracket 1 installed on the inner wall of the cab can be adjusted, so as to adapt to more position changes of the steering column during installation. The clamping block 13 can rotate on the fixing bracket 1, and when installing the steering column, there is no need to consider the difference in concentricity, so as to adapt to the installation of steering columns with different concentricities and meet the interchangeability of products with different installation precision. The fixing device can be processed and manufactured separately, and then firmly fixed on the inner wall of the cab, and the processing method is simple, cost-saving, and convenient for maintenance and replacement.

[0027] like Figure 3-Figure 5 As shown, in order to facilitate the installation and fixation of the steering column, the clamping block 13 can be split into two parts, a clamping part 134 and a clamping part 2 135, and the splitting line passes through the clamping hole 131. The threaded holes 132 are all opened on the clamping part 134, and the clamping part 2 135 is provided with threaded holes 2. There are multiple threaded holes 2 and they avoid the position of the clamping hole 131. The threaded hole 2 penetrates the clamping part 2 135 and extends to the clamping part 134. The threaded hole 2 is provided with a bolt 2 136 whose thread matches the thread and can lock the clamping part 134 and the clamping part 2 135 by the bolt 2 136.

[0028] Therefore, when installing the steering column, first fix the clamping part 134 on the connecting plate 12, then adjust the steering column to a suitable angle and place it inside the partial clamping hole 131 on the clamping part 134, and then lock the clamping part 135 and the clamping part 134 with the bolt 136 and the threaded hole 136 to fix the steering column.

[0029] like Figure 2 As shown, the support plate 11 is provided with a mounting hole 111, a bolt 3 112 is passed through the mounting hole 111, and a threaded hole 3 matching the thread of the bolt 3 112 is provided on the inner wall of the cab, and the bolt 3 112 can be passed through the threaded hole 3 to fix the support plate 11 to the inner wall of the cab. The mounting holes 111 are two strip-shaped holes arranged along the length direction of the support plate 11, and a bolt 3 112 is passed through each mounting hole 111. Therefore, when installing the support plate 11, a certain degree of position adjustment can also be achieved through the mounting holes 111 to meet the adjustment requirements of the steering column in actual installation.

[0030] Among them, in order to ensure the connection is tight, the bolt 1 133, the bolt 2 136 and the bolt 3 112 are all sleeved with locking washers 14. And in order to adapt to the adjustment hole 121 and the installation hole 111, special washers with a larger diameter than conventional washers are used at the bolt 1 133 and the bolt 3 112. For the actual use requirements such as aesthetics and prevention of burrs, the connection between the support plate 11 and the connecting plate 12 is a circular chamfer 15. The end surface of the connecting plate 12 away from the support plate 11 is set as a circular arc surface 16.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steering column fixing device for an underground mining vehicle, applied to the interior of a cab of an underground mining vehicle, characterized in that: The fixing bracket (1) is a U-shaped structure, comprising a support plate (11) and a connecting plate (12), wherein the support plate (11) is fixed to the inner wall of the cab, and the connecting plate (12) has two ends respectively fixed perpendicularly to the support plate (11), and an adjustment hole (121) is provided on the connecting plate (12), and the adjustment hole (121) is a strip-shaped hole arranged along the length direction of the connecting plate (12); A clamping block (13) is rotatably connected between the two connecting plates (12), and a clamping hole (131) matching the shape of the side wall of the steering column is provided on the clamping block (13). The end surfaces of the clamping block (13) contacting the connecting plates (12) on both sides are provided with threaded holes (132). A bolt (133) is passed through the adjustment hole (121), and the bolt (133) is threadably matched with the threaded hole (132) and passed through the threaded hole. The portion of the bolt (133) passing through the adjustment hole (121) is a smooth surface, and the portion passing through the threaded hole (132) is a threaded surface.

2. The underground mining vehicle steering column fixing device according to claim 1, characterized in that: The clamping block (13) can be split into two parts, namely, a clamping part 1 (134) and a clamping part 2 (135), and the splitting line passes through the clamping hole (131). The threaded holes 1 (132) are all formed on the clamping part 1 (134), and the clamping part 2 (135) is provided with threaded holes 2. The number of threaded holes 2 is multiple and avoids the position of the clamping hole (131). The threaded holes 2 penetrate the clamping part 2 (135) and extend to the clamping part 1 (134). The threaded holes 2 are provided with bolts 2 (136) whose threads match the bolts 2 and can lock the clamping part 1 (134) and the clamping part 2 (135) by means of the bolts 2 (136).

3. The underground mining vehicle steering column fixing device according to claim 1, characterized in that: The support plate (11) is provided with a mounting hole (111), a bolt (112) is inserted into the mounting hole (111), a threaded hole (113) matching the thread of the bolt (112) is provided on the inner wall of the cab, and the bolt (112) can be inserted into the threaded hole (113) to fix the support plate (11) to the inner wall of the cab.

4. The underground mining vehicle steering column fixing device according to claim 3, characterized in that: The mounting holes (111) are strip-shaped holes arranged along the length direction of the support plate (11), and there are two of them. A bolt three (112) is inserted into each mounting hole (111).

5. The underground mining vehicle steering column fixing device according to claim 3, characterized in that: The bolt one (133), the bolt two (136) and the bolt three (112) are all sleeved with locking washers (14).

6. The underground mining vehicle steering column fixing device according to claim 1, characterized in that: The connection between the support plate (11) and the connection plate (12) is a circular arc chamfer (15).

7. The underground mining vehicle steering column fixing device according to claim 1, characterized in that: The end surface of the connecting plate (12) away from the supporting plate (11) is an arc surface (16).

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