A vibration reduction device for tunnel traction locomotive

Abstract

The present invention discloses a vibration reduction device for a tunnel traction locomotive, comprising an axle, both ends of the axle are connected in series to the center of a wheel core, a plurality of threaded holes are opened on the outer ring surface of the wheel core, the threaded holes are threadedly connected to one end of a top column, the other end of the top column is inserted into a limiting hole on the inner ring surface of a wheel ring, a plurality of spring blocks are sandwiched between the wheel core and the wheel ring, the end of the axle is rotatably connected to a buffer mechanism, the buffer mechanism is installed on the side wall of the vehicle body, the axle body is located in an axle cavity at the bottom of the vehicle body, and axle seat mechanisms at both ends of the axle cavity are rotatably connected to the axle; the device elastically suspends the axle through the cooperation of the axle seat mechanism and the buffer mechanism, thereby providing buffering for the locomotive, the spring blocks between the wheel core and the wheel ring can further improve the vibration reduction effect, and the deformation of the spring blocks can be controlled by the top column, and the device has the characteristics of safety, adjustability, and easy disassembly and assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of traction locomotive equipment, and in particular to a vibration damping device for a tunnel traction locomotive. Background Art

[0002] Tunnel traction locomotives are generally used in tunnel construction and mine mining. They usually run on tracks and transport minerals, building materials, waste, etc. by pulling freight cars. Due to the influence of geographical environment and construction conditions, the tunnels where tunnel traction locomotives operate are usually rugged, especially mine tunnels, which are narrower and steeper than ordinary tunnels. During transportation, the hard steel wheels of traditional locomotives are in rigid contact with the rails and cannot perform elastic vibration reduction like car tires. Although this can be improved by installing shock absorbers, it is still bumpy during actual operation, which can easily cause the load to fall, and the locomotive parts to loosen, fall off, and be damaged. In severe cases, it may even cause overturning and cause danger. A safer, more effective and easy-to-maintain vibration reduction device is needed to solve the above problems. Summary of the Invention

[0003] In order to solve the above problems, the present invention proposes a vibration damping device for a tunnel traction locomotive, including an axle, both ends of the axle are connected in series to the center of the wheel core, a plurality of threaded holes are opened on the outer ring surface of the wheel core, the threaded holes are threadedly connected to one end of a top column, and the other end of the top column is inserted into a limiting hole on the inner ring surface of the wheel ring, a plurality of spring blocks are clamped between the wheel core and the wheel ring, the end of the axle is rotatably connected to a buffer mechanism, the buffer mechanism is installed on the side wall of the vehicle body, the axle body is located in the axle cavity at the bottom of the vehicle body, and the axle seat mechanisms at both ends of the axle cavity are rotatably connected to the axle.

[0004] Furthermore, the buffer mechanism includes a bearing hinge, the end of the axle is inserted into the inner sleeve of the bearing hinge, the screw hole on the end face of the axle is threadedly connected to the screw on the back of the axle cover, the back of the axle cover is against the outside of the inner sleeve of the axle, the top hinge of the bearing hinge is laterally hinged to the output end of the buffer cylinder, the end of the buffer cylinder body is laterally hinged to the bottom of the slider, the slider is slidably connected to the side groove of the vehicle body, the inner side of the slider is connected to the output end of the side thrust cylinder, and the side thrust cylinder is built into the side wall of the vehicle body.

[0005] Furthermore, the axle seat mechanism includes an elastic seat plate, which is installed in the slots at the openings at both ends of the axle cavity. The bearing is embedded in the elastic seat plate. The bearing and the axle cavity share a central axis, and the bearing is rotationally connected to the axle.

[0006] Furthermore, an internal spline is opened in the center of the wheel core, and the internal spline is connected in series with the external spline of the axle body. The axle body limiting ring is connected to the back of the wheel core by bolts, and the back of the wheel ring is bolted to the inner retaining ring. The inner retaining ring covers the back of the spring block, and the gap between the inner retaining ring and the limiting ring is smaller than the maximum radial deformation of the spring block.

[0007] Furthermore, the front of the wheel core is bolted to the outer retaining ring, the outer retaining ring covers the front of the elastic block, and the gap between the outer retaining ring and the side of the wheel ring is smaller than the maximum radial deformation of the elastic block.

[0008] Furthermore, the top column body is provided with an external hexagonal shape. When the top column is rotated to the lower dead point of the threaded hole, the distance from the top of the top column to the center of the wheel core is smaller than the inner diameter of the wheel ring. When the top column is rotated to the upper dead point of the threaded hole, the distance between the wheel core and the wheel ring matches the radial thickness of the bullet block.

[0009] Furthermore, the outer ring surface of the wheel core and the inner ring surface of the wheel ring are provided with matching notches, the notches and the top columns are evenly spaced, and the spring blocks are inserted into the matching notches.

[0010] Furthermore, a support rod mechanism is provided in the vehicle body, which includes a support seat, which is slidingly connected to the vertical groove above the axle cavity, the arc surface of the bottom of the support seat cooperates with the axle body, the threaded through hole on the bottom surface of the vehicle body is connected to the top of the vertical groove, the threaded shaft is threadedly connected to the threaded through hole, the bottom end of the threaded shaft is rotatably connected to the top of the support seat, and a turntable is provided at the top of the threaded shaft.

[0011] The beneficial effects of the present invention are as follows:

[0012] The present invention cooperates with the axle seat mechanism and the buffer mechanism to elastically suspend the axle to provide buffering for the locomotive. The spring block between the wheel core and the wheel ring can further improve the vibration reduction effect. While improving the traditional hard steel wheel structure, the deformation of the spring block can be controlled by rotating the top column to prevent the spring block from being damaged by excessive force. The present invention has a simple disassembly and assembly process, is easy to replace parts, and is equipped with a support rod mechanism for auxiliary debugging. It is safe, adjustable, and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural cross-sectional schematic diagram of the present invention;

[0014] Figure 2 Schematic diagram of the structure of the buffer mechanism of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the wheel core and wheel ring assembly in the present invention;

[0016] Figure 4 Schematic diagram of the working of the support rod mechanism in the present invention.

[0017] The accompanying drawings are marked as follows: 1. Axle; 101. External spline; 102. Limiting ring; 2. Wheel core; 201. Threaded hole; 202. Internal spline; 3. Top column; 4. Wheel ring; 401. Limiting hole; 5. Spring block; 6. Vehicle body; 601. Shaft cavity; 602. Side groove; 603. Vertical groove; 7. Bearing hinge; 8. Shaft cover; 9. Buffer cylinder; 10. Slider; 11. Side thrust cylinder; 12. Elastic seat plate; 13. Bearing; 14. Inner retaining ring; 15. Outer retaining ring; 16. Support seat; 17. Threaded shaft; 1701. Turntable. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1 to 4 As shown, a vibration reduction device for a tunnel traction locomotive includes an axle 1, and the external splines 101 of the shaft body at both ends of the axle 1 are connected in series with the internal splines 202 in the center of the wheel core 2. The shaft body limiting ring 102 of the axle 1 is connected to the back of the wheel core 2 by bolts. The outer ring surface of the wheel core 2 is evenly distributed with eight threaded holes 201, and the threaded holes 201 are threadedly connected to one end of a top column 3. The column body of the top column 3 is provided with an external hexagon, and the other end of the top column 3 is inserted into the limiting hole 401 on the inner ring surface of the wheel ring 4. The outer ring surface of the wheel core 2 and the inner ring surface of the wheel ring 4 are provided with matching notches. The notches and the top column 3 are evenly spaced, and spring blocks 5 are inserted into the matching notches.

[0022] In this embodiment, the front of the spring block 5 is covered by an outer retaining ring 15, which is bolted to the front of the wheel core 2; the back of the spring block 5 is covered by an inner retaining ring 14, which is bolted to the back of the wheel ring 4. The gap between the outer retaining ring 15 and the side of the wheel ring 4, as well as the gap between the inner retaining ring 14 and the limiting ring 102, are both smaller than the maximum radial deformation of the spring block 5. When the top post 3 is screwed to the lower dead center of the threaded hole 201 through the outer hexagon, the distance from the top of the top post 3 to the center of the wheel core 2 is smaller than the inner diameter of the wheel ring 4, making it easier to remove; when the top post 3 is screwed to the upper dead center of the threaded hole 201, the top post 3 radially presses against the wheel ring 4. At this time, the distance between the wheel core 2 and the wheel ring 4 matches the radial thickness of the spring block 5, making it easier to replace the spring block 5.

[0023] In this embodiment, the end of the axle 1 is rotatably connected to the buffer mechanism (see Figures 1 to 2 ), the buffer mechanism is installed on the side wall of the vehicle body 6, the buffer mechanism includes a bearing hinge 7, the end of the axle 1 is inserted into the inner sleeve of the bearing hinge 7, the end screw hole of the axle 1 is threadedly connected to the screw on the back of the shaft cover 8, the back of the shaft cover 8 is against the outside of the inner sleeve of the axle 1, the top hinge of the bearing hinge 7 is laterally hinged to the output end of the buffer cylinder 9, the end of the cylinder body of the buffer cylinder 9 is laterally hinged to the bottom of the slider 10, the slider 10 is slidably connected to the side groove 602 of the vehicle body 6, the inner side of the slider 10 is connected to the output end of the side thrust cylinder 11, the side thrust cylinder 11 is built into the side wall of the vehicle body 6, and the side thrust cylinder 11 can change the inclination angle of the buffer cylinder 9 by pushing the slider 10, thereby adjusting the buffer effect.

[0024] In this embodiment, the body of the axle 1 is located in the shaft cavity 601 at the bottom of the vehicle body 6. The shaft seat mechanisms at both ends of the shaft cavity 601 are rotatably connected to the axle 1. The shaft seat mechanism includes an elastic seat plate 12, which is installed in the slots at the openings at both ends of the shaft cavity 601. A bearing 13 is embedded in the elastic seat plate 12. The bearing 13 and the shaft cavity 601 share a central axis, and the bearing 13 is rotatably connected to the axle 1. A support rod mechanism is provided in the vehicle body 6. The support rod mechanism includes a support seat 16, which is slidably connected to the vertical slot 603 above the shaft cavity 601. The arc surface at the bottom of the support seat 16 cooperates with the body of the axle 1. A threaded through hole on the bottom surface of the vehicle body 6 connects to the top of the vertical slot 603. A threaded shaft 17 is threadedly connected to the threaded through hole. The bottom end of the threaded shaft 17 is rotatably connected to the top of the support seat 16. A turntable 1701 is provided at the top of the threaded shaft 17. When the threaded shafts 17 on both sides are screwed downward until the arc surface of the support seat 16 contacts the axle 1, the axle 1 is supported and limited by the support seat 16. At this time, the buffer mechanism fails and can be disassembled for maintenance.

[0025] The working principle of the present invention is as follows:

[0026] When the locomotive is in operation, the support seat 16 is ensured to be at the top dead center position, without supporting or limiting the axle 1. The side thrust cylinder 11 adjusts the buffer cylinder 9 to the appropriate inclination angle. At this point, the axle 1 and the hinged buffer cylinder 9 form a quadrilateral structure. The elastic seat plate 12 ensures a certain degree of twisting of the axle 1 within the shaft cavity 601, allowing the entire device to reduce vibration of the vehicle body 6 through structural deformation. Simultaneously, the elastic block 5 between the wheel core 2 and the wheel ring 4 acts similarly to a car tire, further reducing vibration of the vehicle body 6. When the elastic block 5 is flattened to a certain extent, the top post 3 assists the elastic block 5 in supporting the wheel ring 4 (the inner retaining ring 14 and the outer retaining ring 15 also provide auxiliary support). This allows the maximum deformation of the elastic block 5 to be limited by adjusting the protrusion of the top post 3, ensuring that it is within the elastic limit of the elastic block 5. Furthermore, the top post 3 also drives the wheel ring 4 to rotate with the wheel core 2, acting as a spoke.

[0027] When the device needs to be disassembled for maintenance, rotate the turntable 1701 so that the threaded shafts 17 on both sides are screwed down until the arc surface of the support seat 16 contacts the axle 1. At this time, the axle 1 is supported and limited by the support seat 16, and the buffer mechanism fails. Use a jack to jack up the side of the vehicle body 6 that needs maintenance to reduce the pressure between the wheel ring 4 on this side and the track, remove the axle cover 8, and pull the bearing hinge 7 out of the axle 1 with the assistance of the side push cylinder 11, remove the outer retaining ring 15, rotate the upper half circle of the top column 3 to the top dead center position, and rotate the lower half circle to the bottom dead center position, replace the spring block 5 in the upper half circle, and then reverse the operation to replace the spring block 5 in the lower half circle, and reinstall the outer retaining ring 15, the bearing hinge 7 and the axle cover 8 in turn to complete the maintenance on this side.

[0028] The present invention elastically suspends the axle 1 through the cooperation of the axle seat mechanism and the buffer mechanism to provide buffering for the locomotive. The elastic block 5 between the wheel core 2 and the wheel ring 4 can further improve the vibration reduction effect, and the deformation of the elastic block 5 can be controlled by the top column 3. It has the characteristics of safety, adjustment and easy disassembly and assembly.

[0029] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A vibration reduction device for a tunnel traction locomotive, comprising an axle (1), characterized in that: The two ends of the axle (1) are connected in series to the center of the wheel core (2). The outer ring surface of the wheel core (2) is provided with a plurality of threaded holes (201). The threaded holes (201) are threadedly connected to one end of the top column (3). The other end of the top column (3) is inserted into the limiting hole (401) on the inner ring surface of the wheel ring (4). A plurality of spring blocks (5) are sandwiched between the wheel core (2) and the wheel ring (4). When the top column (3) is rotated to the lower dead point of the threaded hole (201), the distance from the top of the top column (3) to the center of the wheel core (2) is smaller than the inner diameter of the wheel ring (4). When the top column (3) is rotated to the upper dead point of the threaded hole (201), the wheel core (2) and the wheel ring (4) are in contact with each other. The spacing between the two ends of the spring block (5) is matched with the radial thickness of the spring block (5); the axle body limiting ring (102) of the axle (1) is connected to the back of the wheel core (2) by bolts, the back of the wheel ring (4) is connected to the inner retaining ring (14) by bolts, the inner retaining ring (14) covers the back of the spring block (5), and the gap between the inner retaining ring (14) and the limiting ring (102) is smaller than the maximum radial deformation of the spring block (5); the front of the wheel core (2) is connected to the outer retaining ring (15) by bolts, the outer retaining ring (15) covers the front of the spring block (5), and the gap between the outer retaining ring (15) and the side of the wheel ring (4) is smaller than the maximum radial deformation of the spring block (5). The end of the axle (1) is rotatably connected to the buffer mechanism, which is installed on the side wall of the vehicle body (6). The buffer mechanism includes a bearing hinge (7), the end of the axle (1) is inserted into the inner sleeve of the bearing hinge (7), the end screw hole of the axle (1) is threadedly connected to the screw on the back of the shaft cover (8), the back of the shaft cover (8) is against the outer side of the inner sleeve of the axle (1), the top hinge of the bearing hinge (7) is laterally hinged to the output end of the buffer cylinder (9), the end of the cylinder body of the buffer cylinder (9) is laterally hinged to the bottom of the slider (10), the slider (10) is slidably connected to the side groove (602) of the vehicle body (6), and the slider is slidably connected to the side groove (602) of the vehicle body (6). The inner side of the block (10) is connected to the output end of the side thrust cylinder (11), the side thrust cylinder (11) is built into the side wall of the vehicle body (6), the shaft body of the axle (1) is located in the shaft cavity (601) at the bottom of the vehicle body (6), the shaft seat mechanism at both ends of the shaft cavity (601) is rotationally connected to the axle (1), the shaft seat mechanism includes an elastic seat plate (12), the elastic seat plate (12) is installed in the slot holes at the openings at both ends of the shaft cavity (601), the bearing (13) is embedded in the elastic seat plate (12), the bearing (13) and the shaft cavity (601) share a central axis, and the bearing (13) is rotationally connected to the axle (1).

2. The vibration reduction device for a tunnel traction locomotive according to claim 1, characterized in that: An internal spline (202) is provided at the center of the wheel core (2), and the internal spline (202) is connected in series with the external spline (101) of the axle body of the axle (1).

3. The vibration reduction device for a tunnel traction locomotive according to claim 1, characterized in that: The top column (3) is provided with an outer hexagonal column body.

4. The vibration reduction device for a tunnel traction locomotive according to claim 1, characterized in that: The outer ring surface of the wheel core (2) and the inner ring surface of the wheel ring (4) are provided with paired notches, the notches and the top pillars (3) are evenly spaced, and the spring blocks (5) are snapped into the paired notches.

5. The vibration reduction device for a tunnel traction locomotive according to claim 1, characterized in that: A support rod mechanism is provided in the vehicle body (6), the support rod mechanism includes a support seat (16), the support seat (16) is slidably connected to the vertical groove (603) above the shaft cavity (601), the arc surface of the bottom of the support seat (16) is matched with the shaft body of the vehicle axle (1), the threaded through hole on the bottom surface of the vehicle body (6) is connected to the top of the vertical groove (603), the threaded shaft (17) is threadedly connected to the threaded through hole, the bottom end of the threaded shaft (17) is rotatably connected to the top of the support seat (16), and the top end of the threaded shaft (17) is provided with a turntable (1701).

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