Railway electric automatic driving device and driving method thereof

Abstract

This invention belongs to the field of wheel adjustment technology and discloses a track electrical automation drive device and its driving method. The drive device includes a support beam, a fixed plate fixedly connected to the lower end of the support beam, a protective sleeve fixedly connected to the lower end of the fixed plate, a drive shaft rotatably connected to the middle of the protective sleeve, a pressure sensor embedded in the inner wall of the protective sleeve, a connecting plate slidably connected to the middle of the protective sleeve, a buffer spring assembly fixedly connected to the upper end of the connecting plate, the top of the buffer spring assembly abutting against the pressure sensor, a fixed ring fixedly connected to the middle of the drive shaft, and an adjustment and limiting mechanism between the fixed ring and the connecting plate. The adjustment and limiting mechanism consists of a support plate, a limiting block, a fixed cylinder, a limiting ring, and ball bearings. An adjusting component is provided on the side end of the protective sleeve, and an adjusting plate is fixedly connected to the upper end of the adjusting component. This invention can adjust and control the wheels of a train, preventing the train from tilting when traveling on curves and ensuring the safety of train operation.

Description

Technical Field

[0001] This invention belongs to the field of wheel adjustment technology, specifically relating to a track electrical automation drive device and its driving method. Background Technology

[0002] Trains are a vital mode of transportation in the road network, enabling the rapid transport of large quantities of goods. With technological advancements, trains are also moving towards electrification. Various terrains mean that train tracks cannot be laid in straight lines; in areas where passage is impossible, the tracks must curve. Traditionally, when trains approach curves, they reduce speed, and the two tracks are constructed at different heights in these areas, allowing the wheels to be held in place by their own weight, thus preventing derailment. However, geological subsidence can occur. If this subsidence affects the height difference between the two tracks, it creates a safety hazard if the train continues at its usual speed. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a track electrical automation drive device and its driving method. This method can adjust and control the wheels of a train to prevent the train from tilting when traveling through curves, thus ensuring the safety of train operation.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] This invention relates to a track electrical automation drive device, comprising a support beam, a fixed plate fixedly connected to the lower end of the support beam, a protective sleeve fixedly connected to the lower end of the fixed plate, a drive shaft rotatably connected to the middle of the protective sleeve, a pressure sensor embedded in the inner wall of the protective sleeve, a connecting plate slidably connected to the middle of the protective sleeve, a buffer spring assembly fixedly connected to the upper end of the connecting plate, the top end of the buffer spring assembly abutting against the pressure sensor, a fixed ring fixedly connected to the middle of the drive shaft, an adjustment and limiting mechanism provided between the fixed ring and the connecting plate, the adjustment and limiting mechanism consisting of a support plate, a limiting block, a fixed cylinder, a limiting ring, and ball bearings, an adjusting member provided on the side end of the protective sleeve, an adjusting plate fixedly connected to the upper end of the adjusting member, and a control plate fixedly connected to the right side of the adjusting member. An adjusting column is fixedly connected to the upper end of the control board, and a control cylinder is fixedly connected to the lower end of the support beam. A mounting box is fixedly connected to the side end of the control cylinder. A locking and fixing component is provided in the middle of the mounting box. The locking and fixing component consists of a connecting part, a locking part, a pressing part, a locking groove, and a rotating part. A first electric push rod is fixedly connected to the inner wall of the mounting box, and a second electric push rod is fixedly connected to the inner wall of the control cylinder. The pressure sensor, the first electric push rod, and the second electric push rod are electrically connected to each other. A piston plate is slidably connected inside the control cylinder. The power output ends of the piston plate and the second electric push rod are fixedly connected. A sliding sleeve is fixedly connected to the top end of the drive shaft. Multiple auxiliary plates are provided on the side end of the sliding sleeve. A bearing sleeve is provided in the middle of the adjusting component, and the sliding sleeve is slidably connected to the middle of the bearing sleeve.

[0006] A further improvement of the present invention is that: a rotating shaft is fixedly connected inside the mounting box, the rotating part and the rotating shaft are rotatably connected, the connecting part is fixedly connected to the side end of the rotating part, the locking part is fixedly connected to the side end of the connecting part, and the pressing part is fixedly connected to the middle position of the connecting part.

[0007] A further improvement of the present invention is that: the side end of the extrusion part has an arc-shaped structure, the arc-shaped surface of the extrusion part faces the locking block, and the locking groove is located at the side end of the extrusion part.

[0008] A further improvement of the present invention is that: a locking block is fixedly connected to the power output end of the first electric actuator, the locking block is slidably connected to the inner wall of the mounting box, a locking head is fixedly connected to the side end of the locking block, the locking head is inclined, and the locking head and the locking groove are engaged with each other.

[0009] A further improvement of the present invention is that: the locking part has an arc-shaped structure, the locking part is located inside the control cylinder, the power output end of the second electric push rod is fixedly connected with a plurality of limiting plates, the locking part is engaged in the gap of the limiting plates, and a return spring is fixedly connected between the side end of the locking part and the inner wall of the control cylinder.

[0010] A further improvement of the present invention is that the cross-section of the fixed cylinder is L-shaped, the support plate is L-shaped, and the support plate is inserted between the fixed cylinder and the drive shaft.

[0011] A further improvement of the present invention is that a limiting ring is fixedly connected to the inner wall of the fixed cylinder, the limiting ring has a trapezoidal cross-section, and ball bearings are embedded on both sides of the limiting ring.

[0012] A further improvement of the present invention is that: two limiting blocks are fixedly connected to the support plate, the sides of the two limiting blocks are inclined, the limiting ring is located in the middle of the two limiting blocks, and the closest distance between the two limiting blocks is less than the widest part of the limiting ring.

[0013] A further improvement of the present invention is that: the adjusting plate is provided with an auxiliary groove in the middle, the adjusting plate is located at the side end of the support beam, the adjusting plate is provided with an auxiliary groove in the middle, and an installation component is fixedly connected to the side end of the support beam. The installation component is a columnar structure with one end having a larger diameter and the other end having a smaller diameter. The installation component is located in the auxiliary groove, and both ends of the installation component penetrate the adjusting plate.

[0014] The present invention also provides a driving method for a track electrical automation drive device, comprising the following steps;

[0015] Step 1: The pressure sensor detects changes in the pressure on the drive shaft. When the train travels to a bend, the pressure sensor reading will change significantly, and the pressure sensor will send a signal to the first and second electric actuators.

[0016] Step 2: The second electric actuator moves the piston plate and adjusting component, thereby adjusting the drive shaft so that the wheels on both sides of the train are in close contact with the track, preventing the track from being suspended in the air;

[0017] Step 3: The first electric actuator moves the locking block, locking the locking part into the gap of the limiting plate, thus limiting and fixing the power output end of the second electric actuator, thereby limiting the drive shaft and preventing it from shifting due to excessive load.

[0018] The beneficial effects of this invention are:

[0019] This application can weigh the weight of a train when it is traveling on a straight area, and then determine whether the train is traveling on a curve or whether there is geological subsidence in a straight area based on the difference in the values ​​of the pressure sensors, so as to carry out emergency repairs on the train track in time and avoid causing safety hazards.

[0020] When the train travels to a curve, the position of the drive axle and the two wheels can be adjusted to ensure that the two wheels are in close contact with the two rails, thereby preventing the train from tilting when traveling to the curve and ensuring the safety of the train.

[0021] The first and second electric actuators can react quickly, thereby adjusting the state and position of the drive shaft. Then, the limiting and fixing mechanism is used to limit and fix the drive shaft, thereby ensuring that the drive shaft is limited and preventing it from moving due to excessive load. Attached Figure Description

[0022] Figure 1 This is a front view of the connection structure between the support beam and the drive shaft of the present invention.

[0023] Figure 2 This is a schematic diagram of the connection structure between the adjusting component and the protective sleeve of the present invention.

[0024] Figure 3 This is a schematic diagram of the internal connections of the protective sleeve of the present invention.

[0025] Figure 4 This is a schematic diagram of the connection of the control and limiting mechanism of the present invention.

[0026] Figure 5 This is the present invention. Figure 4 Enlarged diagram of point A in the middle.

[0027] Figure 6 This is a schematic diagram of the internal connection between the adjusting cylinder and the mounting box of the present invention.

[0028] Wherein: 1-Support beam; 2-Adjusting component; 3-Drive shaft; 4-Adjusting plate; 5-Control plate; 6-Adjusting column; 7-Control cylinder; 8-Protective sleeve; 9-Fixing plate; 10-Auxiliary groove; 11-Mounting component; 12-Pressure sensor; 13-Buffer spring assembly; 14-Connecting plate; 15-Fixing ring; 16-Sliding sleeve; 17-Adjustment and limit mechanism; 171-Supporting plate; 172-Limiting block; 173-Fixing cylinder; 174-Limiting ring; 175-Ball; 18-Piston plate; 19-Limiting piece; 20-Mounting box; 21-Locking block; 22-First electric push rod; 23-Locking head; 24-Rotating shaft; 25-Locking fixing component; 251-Connecting part; 252-Locking part; 253-Extrusion part; 254-Locking groove; 255-Rotating part; 26-Reset spring; 27-Second electric push rod. Detailed Implementation

[0029] To enhance understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-6 As shown, this invention is a track electrical automation drive device, including a support beam 1, a fixed plate 9 fixedly connected to the lower end of the support beam 1, a protective sleeve 8 fixedly connected to the lower end of the fixed plate 9, a drive shaft 3 rotatably connected to the middle of the protective sleeve 8, a pressure sensor 12 embedded in the inner wall of the protective sleeve 8, a connecting plate 14 slidably connected to the middle of the protective sleeve 8, a buffer spring assembly 13 fixedly connected to the upper end of the connecting plate 14, the top end of the buffer spring assembly 13 abutting against the pressure sensor 12, a fixed ring 15 fixedly connected to the middle of the drive shaft 3, an adjustment and limiting mechanism 17 provided between the fixed ring 15 and the connecting plate 14, the adjustment and limiting mechanism 17 consisting of a support plate 171, a limiting block 172, a fixed cylinder 173, a limiting ring 174 and a ball bearing 175, an adjusting member 2 provided on the side end of the protective sleeve 8, an adjusting plate 4 fixedly connected to the upper end of the adjusting member 2, a control plate 5 fixedly connected to the right side of the adjusting member 2, and an adjusting plate 4 fixedly connected to the upper end of the control plate 5. The lower end of the column 6 and the support beam 1 is fixedly connected to the control cylinder 7. The side end of the control cylinder 7 is fixedly connected to the mounting box 20. The middle of the mounting box 20 is provided with a locking fastener 25, which consists of a connecting part 251, a locking part 252, a pressing part 253, a locking groove 254, and a rotating part 255. The inner wall of the mounting box 20 is fixedly connected to the first electric push rod 22, and the inner wall of the control cylinder 7 is fixedly connected to the second electric push rod 27. The pressure sensor 12, the first electric push rod 22, and the second electric push rod 27 are electrically connected to each other. The inside of the control cylinder 7 is slidably connected to the piston plate 18. The power output end of the piston plate 18 and the second electric push rod 27 are fixedly connected. The top end of the drive shaft 3 is fixedly connected to the sliding sleeve 16. The side end of the sliding sleeve 16 is provided with multiple auxiliary plates. The middle of the adjusting part 2 is provided with a bearing sleeve, and the sliding sleeve 16 is slidably connected to the middle of the bearing sleeve. The pressure sensor 12 and the buffer spring assembly 13 are conventional structures in the prior art. When the train travels to a bend, it will tilt. At this time, the wheels on both sides of the train will be subjected to different pressures. The pressure value of the pressure sensor 12 is used to determine the train's current state. When it is determined that the train has traveled to a bend, the piston plate moves under the push of the second electric push rod, which in turn moves the adjusting component. The adjusting component moves the drive shaft, so that the two wheels are pressed tightly against the two rails.

[0031] The mounting box 20 is internally fixedly connected to a rotating shaft 24. A rotating part 255 is rotatably connected to the rotating shaft 24. A connecting part 251 is fixedly connected to the side end of the rotating part 255. A locking part 252 is fixedly connected to the side end of the connecting part 251. A pressing part 253 is fixedly connected to the middle position of the connecting part 251. When the pressing part 253 is pressed, the locking fastener 25 will rotate around the rotating shaft 24.

[0032] The side end of the extrusion part 253 has an arc-shaped structure, and the arc-shaped surface of the extrusion part 253 faces the locking block 21. The locking groove 254 is located at the side end of the extrusion part 253. The power output end of the first electric push rod 22 is fixedly connected to the locking block 21. The locking block 21 is slidably connected to the inner wall of the mounting box 20. The side end of the locking block 21 is fixedly connected to the locking head 23. The locking head 23 is inclined and the locking head 23 and the locking groove 254 are engaged with each other. The first electric push rod 22 drives the locking block 21 and the locking head 23 to move. The locking head 23 extrudes the extrusion part 253 until the locking head 23 is engaged in the locking groove 254, thereby limiting and fixing the locking fastener 25.

[0033] The locking part 252 has an arc-shaped structure and is located inside the control cylinder 7. Multiple limiting plates 19 are fixedly connected to the power output end of the second electric push rod 27. The locking part 252 is engaged in the gap of the limiting plates 19. A return spring 26 is fixedly connected between the side end of the locking part 252 and the inner wall of the control cylinder 7. When the locking fixing part 25 rotates, the locking part 252 limits and fixes the power output end of the second electric push rod 27, thereby limiting and fixing the state of the drive shaft 3 to prevent it from moving due to excessive load. The electric push rod is more responsive and agile than the hydraulic rod, and can quickly adjust the state of the drive shaft 3.

[0034] The fixed cylinder 173 has an L-shaped cross-section, and the support plate 171 has an L-shaped cross-section. The support plate 171 is inserted between the fixed cylinder 173 and the drive shaft 3. A limiting ring 174 is fixedly connected to the inner wall of the fixed cylinder 173. The limiting ring 174 has a trapezoidal cross-section, and ball bearings 175 are embedded on both sides of the limiting ring 174. Two limiting blocks 172 are fixedly connected to the support plate 171. The sides of the two limiting blocks 172 are inclined. The limiting ring 174 is located in the middle of the two limiting blocks 172. The closest distance between the two limiting blocks 172 is less than the widest part of the limiting ring 174, so that the limiting ring 174 can only move in the middle of the two limiting blocks 172. When the drive shaft 3 moves, the two limiting blocks 172 can limit the moving distance of the drive shaft 3 and also limit the angle of the drive shaft 3 to prevent the train from tilting too much and causing it to overturn.

[0035] An auxiliary groove 10 is provided in the middle of the adjusting plate 4. The adjusting plate 4 is located at the side end of the support beam 1. An installation component 11 is fixedly connected to the side end of the support beam 1. The installation component 11 is a columnar structure with one end having a larger diameter and the other end having a smaller diameter. The installation component 11 is located in the auxiliary groove 10. Both ends of the installation component 11 pass through the adjusting plate 4. When the state of the drive shaft 3 is adjusted, the adjusting component 2 moves. The adjusting plate 4 restricts the movement of the adjusting component 2. Through the auxiliary cooperation with the control and fixing mechanism 17, the train tilt angle is prevented from being too large.

[0036] The driving method of the track electrical automation drive device includes the following steps;

[0037] Step 1: The pressure sensor 12 senses the change in pressure on the drive shaft 3. When the train travels to the bend, the value of the pressure sensor 12 will change significantly. The pressure sensor 12 sends the signal to the first electric push rod 22 and the second electric push rod 27.

[0038] Step 2: The second electric push rod 27 drives the piston plate 18 and the adjusting component 2 to move, thereby adjusting the drive shaft 3 so that the wheels on both sides of the train are in close contact with the track, preventing the track from being suspended in the air.

[0039] Step 3: The first electric push rod 22 drives the locking block 21 to move, and the locking part 252 is engaged in the gap of the limiting piece 19 to limit and fix the power output end of the second electric push rod 27, thereby limiting the drive shaft 3 and preventing it from shifting due to excessive load.

[0040] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A track electrical automation drive device, comprising a support beam (1), characterized in that: One end of the support beam (1) is fixedly connected to a fixing plate (9), and one end of the fixing plate (9) is fixedly connected to a protective sleeve (8). A drive shaft (3) is rotatably connected to the middle of the protective sleeve (8). A pressure sensor (12) is embedded in the inner wall of the protective sleeve (8). A connecting plate (14) is slidably arranged in the middle of the protective sleeve (8). A buffer spring assembly (13) is fixedly connected to one end of the connecting plate (14) near the pressure sensor (12). One end of the buffer spring assembly (13) abuts against the pressure sensor (12). The drive shaft (3) A fixing ring (15) is fixedly connected in the middle of the protective sleeve (8). An adjustment and limiting mechanism (17) is provided between the fixing ring (15) and the connecting plate (14). An adjusting member (2) is provided on one side of the protective sleeve (8) parallel to the protective sleeve (8). An adjusting plate (4) is fixedly connected to the upper end of the adjusting member (2). A control plate (5) is fixedly connected to one side of the adjusting member (2) perpendicular to the adjusting plate (4). An adjusting column (6) is fixedly connected to one end of the control plate (5) away from the adjusting member (2). An adjusting plate is fixedly connected to one end of the adjusting member (2). (4) One end of the adjusting plate (4) is located on one side of the support beam (1). One end of the support beam (1) is fixedly connected to a control cylinder (7). One side of the control cylinder (7) is fixedly connected to a mounting box (20). The mounting box (20) is provided with a locking fastener (25) in the middle. The locking fastener (25) includes a connecting part (251), a locking part (252), a pressing part (253), a locking groove (254), and a rotating part (255). A first electric push rod (22) is fixedly connected to the inner wall of the mounting box (20). The control cylinder (7) A second electric actuator (27) is fixedly connected to the inner wall of the device. The pressure sensor (12), the first electric actuator (22), and the second electric actuator (27) are electrically connected to each other. A piston plate (18) is slidably connected inside the control cylinder (7). The power output ends of the piston plate (18) and the second electric actuator (27) are fixedly connected. A sliding sleeve (16) is fixedly connected to the top of the drive shaft (3). Multiple auxiliary plates are provided on the side of the sliding sleeve (16). A bearing sleeve is provided in the middle of the adjusting component (2). The sliding sleeve (16) is slidably connected to the middle of the bearing sleeve.

2. The track electrical automation drive device according to claim 1, characterized in that: The power output end of the first electric actuator (22) is fixedly connected to a locking block (21). The locking block (21) is slidably connected to the inner wall of the mounting box (20). One end of the locking block (21) is fixedly connected to a locking head (23). The locking head (23) is inclined and the locking head (23) and the locking groove (254) are engaged with each other.

3. The track electrical automation drive device according to claim 2, characterized in that: One end of the extrusion part (253) has an arc-shaped structure, and the arc-shaped surface of the extrusion part (253) faces the locking block (21). The locking groove (254) is located at the side end of the extrusion part (253).

4. The track electrical automation drive device according to claim 1, characterized in that: The locking part (252) has an arc-shaped structure and is located inside the control cylinder (7). The power output end of the second electric push rod (27) is fixedly connected to multiple limiting plates (19). The locking part (252) is engaged in the gap of the limiting plates (19). A return spring (26) is fixedly connected between one end of the locking part (252) and the inner wall of the control cylinder (7).

5. A track electrical automation drive device according to claim 1, characterized in that: The mounting box (20) is fixedly connected to a rotating shaft (24). The rotating part (255) and the rotating shaft (24) are rotatably connected. The connecting part (251) is fixedly connected to one end of the rotating part (255). The locking part (252) is fixedly connected to one end of the connecting part (251). The pressing part (253) is fixedly connected to the middle position of the connecting part (251).

6. A track electrical automation drive device according to claim 1, characterized in that: An auxiliary groove (10) is provided in the middle of the adjustment plate (4). An installation component (11) is fixedly connected to one side of the support beam (1) corresponding to the adjustment plate (4). The installation component (11) is a columnar structure with a large diameter at one end and a small diameter at the other end. The installation component (11) is located in the auxiliary groove (10). Both ends of the installation component (11) penetrate the adjustment plate (4).

7. A track electrical automation drive device according to claim 1, characterized in that: The control and limiting mechanism (17) includes a support plate (171), a limiting block (172), a fixed cylinder (173), a limiting ring (174), and ball bearings (175). The support plate (171) is inserted between the fixed cylinder (173) and the drive shaft (3). The limiting ring (174) is fixedly connected to the inner wall of the fixed cylinder (173). Ball bearings (175) are embedded on both sides of the limiting ring (174). Two limiting blocks (172) are fixedly connected to the support plate (171). The limiting ring (174) is located in the middle of the two limiting blocks (172). The closest distance between the two limiting blocks (172) is less than the widest part of the limiting ring (174).

8. A track electrical automation drive device according to claim 7, characterized in that: The fixed cylinder (173) has an L-shaped cross-section, the support plate (171) has an L-shaped cross-section, the limiting ring (174) has a trapezoidal cross-section, and the two limiting blocks (172) have inclined sides.

9. A driving method for a track electrical automation drive device as described in any one of claims 1 to 8, characterized in that: The driving method Includes the following steps; Step 1: The pressure sensor (12) senses the change in pressure of the drive shaft (3). When the train travels to the area of ​​the bend, the value of the pressure sensor (12) will change. The pressure sensor (12) sends a signal to the first electric push rod (22) and the second electric push rod (27). Step 2: The second electric push rod (27) drives the piston plate (18) and the adjusting part (2) to move, thereby adjusting the drive shaft (3) so that the wheels on both sides of the train are in close contact with the track, avoiding the track from being suspended in the air; Step 3: The first electric push rod (22) drives the locking block (21) to move, and the locking part (252) is engaged in the gap of the limiting piece (19) to limit and fix the power output end of the second electric push rod (27) and limit the drive shaft (3) to prevent it from shifting due to excessive load.

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