Rotary turnout

Abstract

A rotary turnout comprises a fixed base plate, a rotary top plate parallel to and corresponding to the fixed base plate is arranged above the fixed base plate, a corresponding fixed shaft is arranged between the fixed base plate and the rotary top plate, the bottom end of the rotary top plate is fixedly connected to the upper surface of the fixed base plate, and the rotary top plate is rotationally connected to the top end of the fixed shaft through a corresponding rotating bearing. And a corresponding rotating track is arranged on the upper surface of the rotating top disc. The space requirement is lower, the time consumption of turning of the mine car is reduced, the mine car transportation efficiency is improved, more time and labor are saved, and higher safety is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of rails, and in particular relates to a rotary turnout used for turning in rail transportation. Background Art

[0002] The existing underground transportation of coal mines generally uses rail transportation. The mine car is a special vehicle for mine rail transportation. However, due to the narrow underground tunnels, it is difficult to adjust the direction of the mine car when it is driving in the tunnel. Turning or turning around is more difficult. For example, when the mine car needs to rotate 180° (i.e. turn around), it is generally used to lift the mine car with a sports car device, and then turn the mine car around manually. This method is not only time-consuming and laborious, but also has low work efficiency, and poses a certain threat to the personal safety of the staff, which is easy to cause danger to the staff; when the mine car needs to turn, especially when turning at a small angle, it is generally used to cooperate with the turn to pass through the curve, but the turnout also needs to be at a sufficient distance in the tunnel before it can be used. The tunnel is often difficult to meet the space requirements of the turnout, and widening the tunnel will greatly increase the economic cost and technical difficulty of the construction of underground transportation tracks in coal mines. Summary of the invention

[0003] The purpose of the present invention is to provide a rotatable turnout to solve the technical problem of difficulty in changing the direction of a mine car in existing underground rail transportation in a coal mine.

[0004] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0005] A rotating turnout comprises a fixed chassis, a rotating top plate corresponding to the fixed chassis is arranged above the fixed chassis and parallel to the fixed chassis, a corresponding fixed shaft is arranged between the two, the bottom end of the fixed shaft is fixedly connected to the upper surface of the fixed chassis, the rotating top plate is rotatably connected to the top end of the fixed shaft through a corresponding rotating bearing, and a corresponding rotating track is arranged on the upper surface of the rotating top plate.

[0006] Furthermore, the outer ring of the fixed shaft is provided with a corresponding annular support thrust bearing, the bottom end of the support thrust bearing is connected to the upper surface of the fixed bottom plate, and the top end thereof is connected to the bottom surface of the rotating top plate.

[0007] Furthermore, reinforcing ribs are arranged on the bottom surface of the rotating top plate, and the reinforcing ribs are evenly distributed on the bottom surface of the rotating top plate of the outer ring of the fixed shaft in the circumferential direction, and a plurality of reinforcing ribs are evenly distributed on the bottom end of the outer wall of the fixed shaft in the circumferential direction.

[0008] Furthermore, a corresponding protective cover is provided above the fixed shaft, and the periphery of the bottom surface of the protective cover is fixedly connected to the upper surface of the rotating top plate.

[0009] Furthermore, the supporting thrust bearing is replaced by a rotating walking wheel, and a plurality of rotating walking wheels are evenly distributed around the periphery below the rotating top plate in a circumferential direction. The rotating walking wheel includes a wheel body and a wheel frame, wherein the upper end of the wheel frame is fixedly connected to the lower surface of the rotating top plate, the wheel body is rotatably connected to the lower end of the wheel frame, and the bottom end of the wheel body abuts against the upper surface of the fixed chassis.

[0010] Furthermore, the fixed shaft is replaced by a rotating shaft, the top end of the rotating shaft is fixedly connected to the bottom surface of the rotating top plate 3, a corresponding rotating motor is arranged below the rotating shaft, the rotating motor is installed on the fixed chassis, the lower end of the rotating shaft is connected to the shaft end of the rotating motor, a hollow sleeve corresponding to the rotating shaft is arranged above the fixed chassis, the hollow sleeve is sleeved on the outer ring of the rotating shaft, and the bottom end of the hollow sleeve is fixed on the fixed chassis, the rotating shaft is inserted into the inner cavity of the sleeve from the upper end opening, a corresponding sleeve top thrust bearing is arranged between the top end of the sleeve and the rotating top plate, the top end of the sleeve top thrust bearing abuts against the lower surface of the rotating top plate, and a reinforcing rib is arranged at the lower end of the outer side wall of the sleeve.

[0011] The rotary turnout of the present invention uses positioning rotation, which reduces the space requirement of the mine car when turning, realizes 360° turning of the mine car in the tunnel, reduces the time consumption cost of the mine car when turning, improves its turning speed, and improves the transportation efficiency of the mine car. At the same time, the rotary turnout of the present invention has a simple structure and is easy to install. Using the rotary turnout of the present invention makes it more convenient for the mine car to turn, saves time and effort, and greatly improves the safety of the mine car when turning and the overall economic benefit of the mine car transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0013] Figure 2 For the present invention Figure 1 A schematic diagram of a top view structure;

[0014] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0016] Explanation of the markings in the figure: 1. Fixed chassis; 11. Casing; 12. Protective cover; 2. Fixed shaft; 3. Rotating top plate; 4. Rotating track; 5. Rotating bearing; 6. Support thrust bearing; 7. Reinforcement ribs; 71. Reinforcement ribs; 8. Rotating walking wheel; 81. Wheel body; 82. Wheel frame; 9. Rotating shaft; 91. Rotating motor; 92. Sleeve top thrust bearing. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the present invention, a rotary turnout of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0018] Example 1

[0019] like Figure 1-2 As shown, the rotary turnout of the present invention is arranged at the turning point of the mine car track, which includes a fixed chassis 1, a fixed shaft 2, a rotating top plate 3 and a rotating track 4, wherein the rotating top plate 3 is arranged above the fixed chassis 1, and the two are parallel to each other. The fixed shaft 2 is arranged between the fixed chassis 1 and the rotating top plate 3, and its bottom end is fixedly connected to the upper surface of the fixed chassis 1, and the rotating top plate 3 is rotatably connected to the top of the fixed shaft 2. In this embodiment, the rotating top plate 3 is set to be circular, and a corresponding mounting hole is provided at the center thereof. The rotating top plate 3 is sleeved on the fixed shaft 2 through the mounting hole at the center thereof, and a corresponding rotating bearing 5 is provided between the two. The rotating top plate 3 can be rotatably connected to the top of the fixed shaft 2 through the rotating bearing 5. The rotating track 4 is arranged on the upper surface of the rotating top plate 3, which corresponds to the driving track of the mine car, so as to facilitate the smooth transition of the mine car between the driving track and the rotating track 4.

[0020] Furthermore, a corresponding support thrust bearing 6 is provided between the fixed chassis 1 and the rotating top plate 3. The support thrust bearing 6 is annular. In this embodiment, its axis is located on the axis of the fixed shaft 2, its bottom end is connected to the upper surface of the fixed chassis 1, and its top end is connected to the bottom surface of the rotating top plate 3. The support thrust bearing 6 provides support force for the rotating top plate 3 and can also rotate with the rotating top plate 3, providing auxiliary effect for its rotation, so that the rotation of the rotating top plate 3 is smoother and more labor-saving.

[0021] Furthermore, reinforcing ribs 7 are provided on the bottom surface of the rotating top plate 3, and the reinforcing ribs 7 are evenly distributed in the circumferential direction on the bottom surface of the rotating top plate 3 of the outer ring of the fixed shaft 2, which improves the strength of the rotating top plate 3, so that it is not easy to bend and deform when carrying a fully loaded mine car with a larger mass. A plurality of reinforcing ribs 71 are evenly distributed in the circumferential direction at the bottom end of the outer wall of the fixed shaft 2, and the bottom end of the reinforcing rib 71 is fixedly connected to the upper surface of the fixed chassis 1. The setting of the reinforcing ribs 71 improves the strength of the fixed shaft 2, which assists the fixed shaft 2 inside it to be not easy to bend, deform or tip over to the side when carrying a mine car with a larger mass. The setting of the reinforcing ribs 7 and the reinforcing ribs 71 not only improves the overall load-bearing capacity of the rotary turnout, but also increases its service life.

[0022] Furthermore, a corresponding protective cover 12 is provided above the fixed shaft 2, and the outer periphery of the bottom surface of the protective cover 12 is fixedly connected to the upper surface of the rotating top plate 3. The protective cover 12 provides protection for the connection between the fixed shaft 2 and the rotating top plate 3 to prevent external foreign matter from entering and affecting the relative rotation between the two.

[0023] When in use, the rotary switch of the present invention is first installed on the running track at the corner where the mine car needs to turn, which disconnects the running track of the mine car and divides it into a track in the direction of the mine car coming and a track in the forward direction. The rotary switch is adjusted so that its rotating track 4 corresponds to the running track of the mine car. When working, the rotating track 4 is first connected with the running track in the direction of the mine car coming. When the corresponding mine car moves to the rotating track 4 above the rotating top plate 3, it stops moving. At this time, a rotational force is applied to the rotating top plate 3 to make it rotate around the fixed axis 2, thereby driving the rotating track 4 above it to rotate synchronously, so that the forward direction of the mine car can be changed. When the rotating track 4 corresponds to the track in the forward direction of the mine car, it stops. At this time, the turning of the mine car is completed, and it can drive from the rotating track 4 into the track in its forward direction and continue to move forward.

[0024] The rotary turnout of the present invention uses a positioning rotation method, which reduces the space required for the mine car to change direction when changing the transportation direction, realizes 360° steering of the coal mine underground transportation equipment, and enables the mine car to pass quickly when changing direction or turning around at a small angle in a narrow tunnel, reduces the time consumption of the mine car steering, and improves the work efficiency of the mine car transportation. At the same time, it has a higher safety factor, saves time and effort in operation, reduces the construction cost of coal mine underground transportation, and improves its overall economic benefits.

[0025] Example 2

[0026] like Figure 3 As shown, based on Example 1, it is further optimized, and the supporting thrust bearing 6 is replaced by a rotating walking wheel 8. A plurality of rotating walking wheels 8 are evenly distributed around the periphery below the rotating top plate 3 in a circumferential direction. The rotating walking wheel 8 includes a wheel body 81 and a wheel frame 82, wherein the upper end of the wheel frame 82 is fixedly connected to the lower surface of the rotating top plate 3, and the wheel body 81 is installed at the lower end of the wheel frame 82, and the two are rotatably connected, and the bottom end of the wheel body 81 abuts against the upper surface of the fixed chassis 1. The rotating walking wheel 8 provides support for the rotating top plate 3, and the rotating walking wheel 8 assists the rotating top plate 3 when it rotates, so that the rotation of the rotating top plate 3 is more time-saving and labor-saving. Compared with the supporting thrust bearing 6, the use of the rotating walking wheel 8 is easier to repair and replace after installation, which reduces the time cost of later maintenance and improves the transportation efficiency of the mine car to a certain extent.

[0027] Example 3

[0028] like Figure 4As shown, based on the embodiment 1, the embodiment 1 is further optimized, the fixed shaft 2 is replaced by a rotating shaft 9, the top end of the rotating shaft 9 is fixedly connected to the bottom surface of the rotating top plate 3, a corresponding rotating motor 91 is arranged below the rotating shaft 9, the rotating motor 91 is mounted on the fixed chassis 1, the lower end of the rotating shaft 9 is connected to the shaft end of the rotating motor 91, the outer ring of the rotating shaft 9 is provided with a corresponding sleeve 11, the sleeve 11 is sleeved on the outside of the rotating shaft 9, the bottom end of the sleeve 11 is fixedly connected to the fixed chassis 1, the interior is hollow and the upper end is open, the rotating shaft 9 is inserted into the inner cavity of the sleeve 11 from the upper end opening, and the top of the sleeve 11 is A corresponding sleeve thrust bearing 92 is provided between the end and the rotating top plate 3, and the top end of the sleeve thrust bearing 92 abuts against the lower surface of the rotating top plate 3. The reinforcing rib 71 is provided at the lower end of the outer wall of the sleeve 11, and its inner ring is connected to the outer wall of the lower end of the sleeve 11. When in use, when the mine car runs to the top of the rotating track 4 and needs to turn, the rotating motor 91 is started, which drives the rotating top plate 3 to rotate through the rotating shaft 9, so that the rotating track 4 rotates a corresponding angle and docks with the track in the direction in which the mine car needs to move forward, thereby completing the turning of the mine car, so that it can continue to travel along the track in the forward direction.

[0029] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A rotary turnout, characterized in that: It comprises a fixed base (1), a rotating top plate (3) corresponding to the fixed base (1) is arranged above the fixed base (1), a corresponding fixed shaft (2) is arranged between the two, the bottom end of which is fixedly connected to the upper surface of the fixed base (1), the rotating top plate (3) is rotatably connected to the top end of the fixed shaft (2) via a corresponding rotating bearing (5), and a corresponding rotating track (4) is arranged on the upper surface of the rotating top plate (3).

2. The rotary turnout according to claim 1, characterized in that: The outer ring of the fixed shaft (2) is provided with a corresponding annular support thrust bearing (6), the bottom end of the support thrust bearing (6) is connected to the upper surface of the fixed bottom plate (1), and the top end is connected to the bottom surface of the rotating top plate (3).

3. The rotary turnout according to claim 1, characterized in that: The bottom surface of the rotating top plate (3) is provided with reinforcing ribs (7), which are evenly distributed in a circumferential direction on the bottom surface of the rotating top plate (3) of the outer ring of the fixed shaft (2), and a plurality of reinforcing ribs (71) are evenly distributed in a circumferential direction on the bottom end of the outer wall of the fixed shaft (2).

4. The rotary turnout according to claim 1, characterized in that: A corresponding protective cover (12) is provided above the fixed shaft (2), and the periphery of the bottom surface of the protective cover (12) is fixedly connected to the upper surface of the rotating top plate (3).

5. The rotary turnout according to claim 1, characterized in that: The supporting thrust bearing (6) is replaced by a rotating running wheel (8), and a plurality of rotating running wheels (8) are evenly distributed around the periphery below the rotating top plate (3) in a circumferential direction. The rotating running wheel (8) comprises a wheel body (81) and a wheel frame (82), wherein the upper end of the wheel frame (82) is fixedly connected to the lower surface of the rotating top plate (3), the wheel body (81) is rotatably connected to the lower end of the wheel frame (82), and the bottom end of the wheel body (81) abuts against the upper surface of the fixed bottom plate (1).

6. The rotary switch according to claim 1, characterized in that: The fixed shaft (2) is replaced by a rotating shaft (9), the top end of the rotating shaft (9) is fixedly connected to the bottom surface of the rotating top plate (3), a corresponding rotating motor (91) is arranged below the rotating shaft (9), the rotating motor (91) is mounted on the fixed chassis (1), the lower end of the rotating shaft (9) is connected to the shaft end of the rotating motor (91), a hollow sleeve (11) corresponding to the rotating shaft (9) is arranged above the fixed chassis (1), the hollow sleeve (11) is sleeved on the outer ring of the rotating shaft (9), the bottom end of the hollow sleeve (11) is fixed to the fixed chassis (1), the rotating shaft (9) is inserted into the inner cavity of the sleeve (11) from the upper end opening, a corresponding sleeve top thrust bearing (92) is arranged between the top end of the sleeve (11) and the rotating top plate (3), the top end of the sleeve top thrust bearing (92) is abutted against the lower surface of the rotating top plate (3), and a reinforcing rib (71) is arranged at the lower end of the outer side wall of the sleeve (11).

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