Mine truck power supply rail supporting device

Abstract

The invention discloses a mine truck power supply rail supporting device which comprises a telescopic stand column capable of adjusting the height, and a mounting frame used for mounting a power supply rail and a walking rail and capable of adjusting the angle and further adjusting the gradient of the walking rail and the power supply rail is arranged at the free end of the telescopic stand column. By the adoption of the supporting device, height adjustment can be achieved through the telescopic stand column, angle adjustment can be achieved through the installation frame, the height and the gradient of the walking rail installed on the supporting device can be adaptively adjusted according to different terrains of a mine field and mine truck vehicles of different specifications, universality is met, construction difficulty is lowered, and cost is saved.

Description

Technical Field

[0001] This involves the power supply of mining trucks, especially the installation and support devices for power supply rails. Background Technology

[0002] With the acceleration of green and low-carbon development, contact rail power supply systems are gradually expanding into the field of mine power supply. This power supply method has significant advantages such as simple structure, low space occupation, long service life, and high reusability, making it suitable for the needs of complex mining conditions. In the existing urban rail transit sector, contact rail power supply systems remain fixed after installation and do not require disassembly; however, in large-scale mining operations, individual mine pits have steep slopes and short mining cycles, requiring adjustments to the contact rail system's position after changing mining locations, resulting in significant differences in operating conditions. In existing urban rail transit contact rail power supply systems, the support devices for the contact rail system are fixedly installed. However, for mining heavy-duty trucks, there are mining trucks of different tonnages (and heights). When heavy-duty mining trucks of different tonnages share the support device, the fixed support device cannot meet the needs of different tonnages. Furthermore, existing urban rail transit power supply rail support devices are generally arranged vertically along the running rail line. For mining power supply rail systems, the support device is always vertical, with both the running rail and power supply rail systems supported and fixed by the same support device. Summary of the Invention

[0003] To achieve power supply rail transportation in steep mining areas, a support device for power supply rails on steep slopes needs to be designed. Specifically, this device is a support device for power supply rails on steep slopes with adjustable running rails and contact rails. The technical solution adopted in this invention is:

[0004] A power supply rail support device for a mining truck includes a telescopic column that can be height adjusted, and a mounting frame is provided at the free end of the telescopic column for installing the power supply rail and the running rail, and can be angled to adjust the slope of the running rail and the power supply rail.

[0005] Furthermore, the telescopic column includes an outer cylinder and an inner tube that are sleeved together and can extend and retract freely.

[0006] Furthermore, the telescopic column is provided with several positioning holes and adjustment holes along its axial direction for height adjustment.

[0007] Furthermore, a screw lifting device or hydraulic jack is provided to adjust the extension and retraction of the outer cylinder and inner tube.

[0008] Furthermore, a pre-tightening device is provided between the outer cylinder and the inner tube to prevent them from wobbling together.

[0009] Furthermore, a base is provided at the lower end of the telescopic column.

[0010] Furthermore, the mounting frame includes a fixed beam installed at the free end of the telescopic column, a movable beam for angle adjustment is provided on the fixed beam, and a mounting seat for mounting the traveling rail and an insulating support device for mounting the power supply rail are provided on the movable beam.

[0011] Furthermore, an arc-shaped guide rail is provided on the fixed beam, and the movable beam is set on the arc-shaped guide rail and connected to the arc-shaped guide rail by fasteners.

[0012] Furthermore, the movable beam is hinged to the fixed beam.

[0013] This support device allows for height adjustment via telescopic columns and angle adjustment via mounting frames. The height and slope of the running rails installed on it can be adapted to different terrains and mining trucks of different specifications, achieving versatility, reducing construction difficulty, and saving costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the support device structure;

[0015] Figure 2 A schematic diagram of an embodiment 1 of a telescopic structure for height adjustment of telescopic columns;

[0016] Figure 3 Schematic diagram of embodiment 2 of telescopic structure for height adjustment of telescopic column;

[0017] Figure 4 Schematic diagram of embodiment 1 of the structure for achieving angle adjustment of the mounting bracket;

[0018] Figure 5 Schematic diagram of embodiment 2 of the structure for achieving angle adjustment of the mounting bracket; Detailed Implementation

[0019] To better understand the concept of this invention, the technical solution of the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] like Figure 1 The support device shown includes a telescopic column 1 and a mounting frame 2 installed on top of the telescopic column 1. The telescopic column 1 is installed on the ground to provide support. The telescopic column 1 has a height adjustment function to adjust the overall height of the mounting frame 2 to match the height requirements of different vehicle body heights or different height power receiving devices on mining trucks. The mounting frame 2 is used to install the running rail for the power receiving device and the contact rail for providing power to the current collector shoe on the power receiving device. The mounting frame 2 also has an angle adjustment function to adapt to the slope changes along the running rail and contact rail.

[0021] The following section provides further explanation of the two main structures mentioned above and their functions, in conjunction with the accompanying drawings:

[0022] like Figure 2 The telescopic column 1 shown includes an outer cylinder 1-1 and an inner tube 1-2. The inner tube 1-2 is partially placed in the outer cylinder 1-1 and can move along the axial direction of the outer cylinder 1-1 to achieve the telescopic function. The mounting bracket 2 is installed at the end of the inner tube 1-2. The outer cylinder 1-1 is arranged on the ground as a support. Of course, the description here is only based on the embodiment shown in the figure. Since the inner tube 1-2 and the outer cylinder 1-1 are adjusted by relative movement, the outer cylinder 1-1 can also be used to fix the mounting bracket 2, while the inner tube 1-2 is arranged on the ground as a support.

[0023] To facilitate the ground-based support arrangement of the outer cylinder 1-1, a flat plate 1-3 is installed at the lower end of the outer cylinder 1-1 to increase the contact area and provide stable support. Ribs 1-4 further strengthen the flat plate 1-3 and the outer cylinder 1-1. This method can be achieved by burying the flat plate 1-3 and the lower part of the outer cylinder 1-1 underground, or by pre-embedding anchor bolts underground to connect the flat plate 1-3. However, as mining progresses, the site may change, necessitating the relocation and re-laying of the support device. Figure 1 A base 3 is prefabricated as shown. The flat plate 1-3 is fixed to the base 3 by pre-embedded bolts. The base is moved together with the plate during the transfer. The base 3 can be made of heavy reinforced concrete. It can be placed directly on the ground to provide a reliable and stable support foundation. In order to further improve its stability, the base 3 is made into a frustum shape to increase the base area and improve stability.

[0024] To achieve height adjustment, such as Figure 2 As shown, positioning holes 1-5 and adjusting holes 1-6 are respectively provided on the outer cylinder 1-1 and the inner tube 1-2. At least one set of adjusting holes 1-6 is arranged axially. Adjusting holes 1-6 at different positions are positioned at different heights relative to positioning holes 1-5 by inserting positioning pins or bolts. For more precise adjustment, the more adjusting holes 1-6 and the smaller the spacing between them, the better. However, considering the strength requirements of the hole edges, the distance between adjusting holes 1-6 is limited. Therefore, to meet more precise adjustment requirements, one or more sets of adjusting holes 1-6 can be opened at other locations on the outer wall where the adjusting holes 1-6 are located, and each set of adjusting holes 1-6 can be arranged with a staggered height difference in the axial direction. Of course, besides... Figure 2 In addition to the adjustment methods described in the embodiments given, other methods such as... Figure 3The height adjustment of the inner tube 1-2 is achieved by setting a screw lifting mechanism 1-7 to drive the inner tube 1-2. The screw of the screw lifting mechanism 1-7 is connected to the end face of the inner tube 1-2. The screw is driven to extend and retract by the worm gear inside the screw lifting mechanism 1-7, thereby driving the inner tube 1-2 to rise and fall, thus achieving the effect of stepless adjustment. Similarly, in addition to the above embodiment, those skilled in the art can also achieve the above function by using conventional lifting devices such as hydraulic jacks, which should be regarded as equivalent technical features.

[0025] Since the inner tube 1-2 needs to be movably installed within the outer cylinder 1-1, a certain gap is required between them to prevent jamming. After adjustment, it is necessary to prevent the inner tube 1-2 from shaking within the outer cylinder 1-1. Therefore, a pre-tightening device 1-8 can be installed on the outer cylinder 1-1 to eliminate the gap between the inner tube 1-2 and the outer cylinder 1-1 and prevent shaking. Figure 2 In the embodiment shown, bolts are installed at different positions on the outer cylinder 1-1 to tighten the outer wall of the inner tube 1-2 and prevent it from shaking, similar to the principle of a set screw. Alternatively, conventional methods such as inserting a wedge-shaped bushing into the gap can also be used to prevent the inner tube 1-2 from shaking.

[0026] The structure of the mounting bracket will be described below with reference to the attached drawings.

[0027] like Figure 4 The mounting frame 2 shown includes a fixed beam 2-1 and a movable beam 2-2. The fixed beam 2-1 is mounted on the telescopic end of the telescopic column 1, and its height is adjusted by the telescopic column 1. The movable beam 2-2 is mounted on the fixed beam 2-1 for angle adjustment. The movable beam 2-2 is equipped with a mounting base 2-3 for mounting the traveling rail A and an insulating support device 2-4 for mounting the contact rail B. In this embodiment, the structure for adjusting the angle of the movable beam 2-2 is an arc-shaped guide rail 2-5 mounted on the fixed beam 2-1. The movable beam 2-2 is mounted on the arc-shaped guide rail 2-5 and can be positioned within the arc by fasteners. When adjusting the angle of the movable beam 2-2, the movable beam 2-2 is slid along the arc-shaped guide rail 2-5. To ensure the movable beam 2-2 matches the arc surface of the arc-shaped guide rail 2-5 for easy angle adjustment, the contact surface between the movable beam 2-2 and the arc-shaped guide rail 2-5 should also have an arc to match the arc surface of the arc-shaped guide rail 2-5. After the angle is adjusted, the position of the movable beam 2-2 is fixed with fasteners. Specifically, in this embodiment, the arc-shaped guide rail 2-5 has a T-slot 2-51, and the fasteners are T-bolts 2-52 set in the T-slot 2-51 to connect the movable beam 2-2. The angle of the movable beam 2-2 is adjusted to accommodate the inclination angle of the traveling rail and contact rail along the length direction to adapt to the slope changes of the paved road. Of course, other methods can also be used... Figure 5 The movable beam 2-2 is hinged to the fixed beam 2-1 and the angle is adjusted by fasteners through a positioning plate 2-7 with an arc-shaped hole 2-6.

[0028] To facilitate the disassembly of the fixed beam 2-1, a sleeve 2-8 is installed on the fixed beam 2-1 to connect with the telescopic column 1. To prevent it from shaking, a pre-tightening device is also installed between the sleeve 2-8 and the telescopic column 1. To increase its strength, a reinforcing rib is installed between the sleeve 2-8 and the fixed beam 2-1.

[0029] As can be seen from the above structure, the support device can not only adjust the height but also adjust the angle. It can adapt to the height of the contact rail and the running rail installed on it according to the vehicle height and the complex road conditions in the mining area, so that the power receiving device traveling on it can operate smoothly. Moreover, because the support device has the ability to adjust the height and angle, it can be deployed in all sections of the mining area without the need to specially make support devices of fixed specifications according to the road and vehicle conditions.

Claims

1. A power rail support device for mining trucks, characterized in that: It includes a telescopic column (1) that can be height adjusted, and a mounting frame (2) is provided at the free end of the telescopic column (1) for installing the contact rail and the running rail and for adjusting the angle to adjust the slope of the running rail and the power supply rail.

2. The power supply rail support device for mining trucks according to claim 1, characterized in that: The telescopic column (1) includes an outer cylinder (1-1) and an inner tube (1-2) that are sleeved together and can extend and retract freely.

3. The power supply rail support device for mining trucks according to claim 2, characterized in that: The telescopic column (1) is provided with several positioning holes (1-5) and adjustment holes (1-6) for height adjustment along the axial direction.

4. The power supply rail support device for mining trucks according to claim 2, characterized in that: The outer cylinder (1-1) and inner tube (1-2) are adjusted by a screw lifting device (1-7) or a hydraulic jack.

5. A power supply rail support device for mining trucks according to claim 2, characterized in that: A pre-tightening device (1-8) is provided between the outer cylinder (1-1) and the inner tube (1-2) to prevent them from shaking.

6. The power supply rail support device for mining trucks according to claim 1, characterized in that: A base (3) is provided at the lower end of the telescopic column (1).

7. The power supply rail support device for mining trucks according to claim 1, characterized in that: The mounting frame (2) includes a fixed beam (2-1) installed at the free end of the telescopic column (1), a movable beam (2-2) for angle adjustment is provided on the fixed beam (2-1), and a mounting seat (2-3) for mounting the traveling rail and an insulating support device (2-4) for mounting the contact rail are provided on the movable beam (2-2).

8. A power rail support device for a mining truck according to claim 7, characterized in that: An arc-shaped guide rail (2-5) is provided on the fixed beam (2-1), and the movable beam (2-2) is provided on the arc-shaped guide rail (2-5) and connected to the arc-shaped guide rail (2-5) by fasteners.

9. A power rail support device for a mining truck according to claim 7, characterized in that: The movable beam (2-2) is hinged to the fixed beam (2-1) for angle adjustment.

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