Railway rail changing vehicle

Abstract

The utility model relates to the technical field of railway rail changing, in particular to a railway rail changing vehicle which comprises a vehicle body, a protective shell is fixedly connected to the middle of the vehicle body, frame bodies are fixedly connected to the two sides of the upper end of the vehicle body, first stepping motors are fixedly connected to the interiors of the frame bodies, and output shafts of the first stepping motors are fixedly connected with shells. An adjusting mechanism is arranged on the shell, and the outer wall of the lower end of the shell is rotationally connected with the frame body through a bearing. According to the railway rail changing vehicle, through cooperation of the adjusting mechanism and the crane, the output shaft of the second stepping motor rotates forwards and backwards to control the crane to move leftwards and rightwards, a worker adjusts the position of the crane according to the position of a rail needing to be disassembled, and a threaded rod is driven through cooperation of a worm gear and a worm so as to drive the crane to move; compared with cooperation of a gear and a rack, the stepping motor is safer, when the stepping motor fails, external factors have little influence on the stepping motor, and self-locking is still achieved, so that potential safety hazards are reduced, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of railway track replacement technology, specifically a railway track replacement vehicle. Background Technology

[0002] A rail-changing vehicle is a specialized railway maintenance device used for exchanging old and new rails on railway tracks. In the construction of seamless railway lines, the rail-changing vehicle is responsible for loading, transporting, unloading, and recycling long rails.

[0003] For example, the railway track-changing vehicle with announcement number "CN214193973U" has the following advantages compared with existing technologies: it adopts a cantilever crane with a rack and pinion track, and a stepper motor drives the drive gear on the hoist trolley. The meshing of the drive gear and the rack and pinion track generates propulsion force, enabling the lateral movement of the hoist trolley rack on the track. The rollers of the hoist trolley are only responsible for bearing and rolling, and do not undertake the driving function. This ensures that the lateral movement of the hoist trolley of the cantilever crane will not slip under conditions such as superelevation curves, rain, and slopes, increasing the safety of the track-changing vehicle. However, this railway track-changing vehicle uses a stepper motor to drive the gear to rotate and move the hoist trolley on the suspended arm. The gear and rack engagement does not have self-locking, which can easily lead to danger in the event of stepper motor failure, posing a safety hazard and resulting in low safety. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of existing railway track changing vehicles, which use stepper motors to drive gears to rotate and move a hoist trolley on a suspension arm. The gear and rack mechanism does not have self-locking, which can easily lead to danger and safety hazards if the stepper motor goes out of control, thus resulting in low safety for workers. Therefore, this utility model proposes a railway track changing vehicle.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a railway track-changing vehicle, including a car body, a protective shell fixedly connected to the middle of the car body, a generator installed inside the protective shell, a frame fixedly connected to both sides of the upper end of the car body, a first stepper motor fixedly connected inside the frame, a housing fixedly connected to the output shaft of the first stepper motor, an adjustment mechanism provided on the housing, the lower outer wall of the housing being rotatably connected to the frame via bearings, multiple baffles machined on the upper end of the car body; and a crane provided on the adjustment mechanism.

[0007] Preferably, support rods are installed on both sides of the outer wall of the housing.

[0008] Preferably, the adjustment mechanism includes a second stepper motor, the output shaft of the second stepper motor is fixedly connected to a first helical gear, the outer wall of the first helical gear meshes with the second helical gear, the rotating shaft of the second helical gear is fixedly connected to a worm, the rotating shafts of the first and second helical gears are both rotatably connected to the housing through bearings, the upper end of the worm is rotatably connected to the housing through bearings, and the outer wall of the worm meshes with a worm wheel;

[0009] The rotating shaft of the worm gear is fixedly connected to a threaded rod, and the end of the threaded rod is rotatably connected to the housing through a bearing.

[0010] Preferably, the outer wall of the threaded rod is threadedly connected to the threaded block, and the outer wall of the threaded block is slidably connected to the housing.

[0011] Preferably, the crane is fixedly connected to the lower end of the threaded block, and the outer wall of the second stepper motor is fixedly connected to the housing.

[0012] The railway rail-changing vehicle proposed in this utility model has the following advantages: Through the coordination of the adjustment mechanism and the crane, the output shaft of the second stepper motor rotates, driving the first helical gear to rotate, which in turn drives the second helical gear to rotate. The rotation of the second helical gear drives the worm gear to rotate, and the rotation of the worm gear drives the worm wheel to rotate. Because the worm wheel and worm gear have self-locking properties, when the second stepper motor fails, the mechanical self-locking of the worm wheel and worm gear makes the crane less likely to move laterally due to external factors, thus improving safety. The rotation of the worm wheel drives the threaded rod to rotate, and the rotation of the worm gear drives the threaded block to move. The movement of the threaded block is limited by the housing and moves linearly, which in turn drives the crane to move. The forward and reverse rotation of the output shaft of the second stepper motor controls the left and right movement of the crane. The operator can adjust the position of the crane according to the position of the rail to be disassembled. The movement of the crane is driven by the threaded rod through the coordination of the worm wheel and worm gear, which is safer than using a gear and rack mechanism. When the stepper motor fails, external factors have little impact on it, and it still has self-locking properties, thus reducing safety hazards and improving the safety of the operators. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 for Figure 1 Schematic diagram of part A in the middle;

[0016] Figure 4 for Figure 2 Schematic diagram of Part B in the middle section;

[0017] Figure 5for Figure 2 Schematic diagram of part C in the middle.

[0018] In the diagram: 1. Vehicle body, 2. First stepper motor, 3. Protective shell, 4. Generator, 5. Adjustment mechanism, 501. Second stepper motor, 502. First helical gear, 503. Second helical gear, 504. Worm, 505. Worm wheel, 506. Threaded rod, 507. Threaded block, 6. Housing, 7. Support rod, 8. Crane, 9. Frame, 10. Baffle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] See attached document Figure 1-5 :

[0021] In this embodiment, a railway track-changing vehicle includes a car body 1. A protective shell 3 is fixedly connected to the middle of the car body 1. A generator 4 is installed inside the protective shell 3. The protective shell 3 is used to protect the generator 4 and has a sliding door installed on top. A frame 9 is fixedly connected to both sides of the upper end of the car body 1. The frame 9 makes the rotation of the shell 6 more stable. A first stepper motor 2 is fixedly connected inside the frame 9. The output shaft of the first stepper motor 2 is fixedly connected to the shell 6. The rotation of the first stepper motor 2 drives the shell 6 to rotate. An adjustment mechanism 5 is provided on the shell 6. The lower outer wall of the shell 6 is rotatably connected to the frame 9 through a bearing. Multiple baffles 10 are machined on the upper end of the car body 1. A crane 8 is provided on the adjustment mechanism 5. The baffles 10 divide the car body 1 into two areas for placing rails. Support rods 7 are installed on both sides of the outer wall of the shell 6.

[0022] See attached document Figure 1-2 And 4-5:

[0023] The adjustment mechanism 5 includes a second stepper motor 501. The output shaft of the second stepper motor 501 is fixedly connected to a first helical gear 502. The outer wall of the first helical gear 502 meshes with a second helical gear 503. The rotation of the output shaft of the second stepper motor 501 drives the first helical gear 502 to rotate, thereby driving the second helical gear 503 to rotate. The rotating shaft of the second helical gear 503 is fixedly connected to a worm gear 504. The rotation of the second helical gear 503 drives the worm gear 504 to rotate. The rotating shafts of the first helical gear 502 and the second helical gear 503 are both rotatably connected to the housing 6 through bearings. The upper end of the worm gear 504 is rotatably connected to the housing 6 through bearings. The outer wall of the worm gear 504 meshes with a worm wheel 505.

[0024] A threaded rod 506 is fixedly connected to the rotating shaft of the worm gear 505. The rotation of the worm gear 505 drives the threaded rod 506 to rotate. The end of the threaded rod 506 is rotatably connected to the housing 6 through a bearing. The outer wall of the threaded rod 506 is threadedly connected to the threaded block 507. The rotation of the threaded rod 506 drives the threaded block 507 to rotate. The outer wall of the threaded block 507 is slidably connected to the housing 6. The threaded block 507 is limited by the linear movement of the housing 6. The crane 8 is fixedly connected to the lower end of the threaded block. The crane model is CD1. The steel wire is controlled by a motor to drive the grab bucket to pick up the object. The movement of the threaded block 507 drives the movement of the crane 8. The outer wall of the second stepper motor 501 is fixedly connected to the housing 6.

[0025] Working principle:

[0026] The railway track replacement vehicle is used to recycle old railway tracks. Warning lights are installed on both sides of the vehicle body 1. When traveling at night, the warning lights are turned on to send a signal to remind other vehicles and personnel. A generator 4 is installed on the top. The generator 4 is protected by a protective shell 3. The protective shell 3 is used to protect the generator and prevent it from being damaged by collisions during the handling of the tracks. The generator 4 is used to provide power.

[0027] Workers use two rail-changing cars that move back and forth. The old rails are placed on the front car (car body 1), and the new rails are placed on the rear car (car body 1). During operation, workers start two first-step actuators (e.g., ...). Figure 2 The output shaft of the first stepper motor 2 rotates, causing the housing 6 to rotate, which in turn causes the crane 8 to rotate around the output shaft of the first stepper motor 2. By controlling the rotation angle of the output shaft of the first stepper motor 2, the crane 8 is rotated. When the appropriate angle is reached, the first stepper motor 2 is stopped, and the operator starts the second stepper motor 501 (e.g., ...). Figure 4 The output shaft of the second stepper motor 501 rotates, driving the first helical gear 502 to rotate, which in turn drives the second helical gear 503 to rotate. The rotation of the second helical gear 503 drives the worm gear 504 to rotate, and the rotation of the worm gear 504 drives the worm wheel 505 to rotate (e.g., ...). Figure 2 Because the worm gear 505 and worm 504 have self-locking, the crane 8 will not move due to external factors when the second motor 501 fails, making it safer;

[0028] The rotation of worm gear 505 drives the rotation of threaded rod 506 (e.g.) Figure 2The worm gear 506 rotates, driving the threaded block 507 to move. The threaded block 507 moves linearly, limited by the housing 6. The movement of the threaded block 507 drives the crane 8 to move. The output shaft of the second stepper motor 501 controls the left and right movement of the crane 8 by rotating forward and reverse. The operator adjusts the position of the crane 8 according to the required rail removal location. The two cranes 8 are started, causing their grabs to lift the scrap rails downwards and then upwards. The two grabs hold both ends of the scrap rails, making transportation more stable. Then, the second stepper motor 501 is controlled again, causing the two cranes 8 to move the scrap rails to the two areas separated by the baffle 10 on the car body 1, realizing the collection of scrap rails. Similarly, the rear car body 1 uses the crane 8 to place new rails in the designated position. The working principle is the same as the above principle, used for subsequent installation, realizing the replacement of railway rails.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A railway track-changing vehicle, comprising a car body (1), characterized in that: A protective shell (3) is fixedly connected to the middle of the vehicle body (1). A generator (4) is installed inside the protective shell (3). A frame (9) is fixedly connected to both sides of the upper end of the vehicle body (1). A first stepper motor (2) is fixedly connected inside the frame (9). A housing (6) is fixedly connected to the output shaft of the first stepper motor (2). An adjustment mechanism (5) is provided on the housing (6). The lower outer wall of the housing (6) is rotatably connected to the frame (9) through a bearing. Multiple baffles (10) are machined on the upper end of the vehicle body (1). A crane (8) is provided on the adjustment mechanism (5).

2. The railway track-changing vehicle according to claim 1, characterized in that: Support rods (7) are installed on both sides of the outer wall of the housing (6).

3. The railway track-changing vehicle according to claim 1, characterized in that: The adjustment mechanism (5) includes a second stepper motor (501), the output shaft of the second stepper motor (501) is fixedly connected to a first helical gear (502), the outer wall of the first helical gear (502) meshes with the second helical gear (503), the rotating shaft of the second helical gear (503) is fixedly connected to a worm (504), the rotating shafts of the first helical gear (502) and the second helical gear (503) are rotatably connected to the housing (6) through bearings, the upper end of the worm (504) is rotatably connected to the housing (6) through bearings, and the outer wall of the worm (504) meshes with a worm wheel (505); The rotating shaft of the worm gear (505) is fixedly connected to a threaded rod (506), and the end of the threaded rod (506) is rotatably connected to the housing (6) through a bearing.

4. The railway track-changing vehicle according to claim 3, characterized in that: The outer wall of the threaded rod (506) is threadedly connected to the threaded block (507), and the outer wall of the threaded block (507) is slidably connected to the housing (6).

5. The railway track-changing vehicle according to claim 4, characterized in that: The crane (8) is fixedly connected to the lower end of the threaded block (507), and the outer wall of the second stepper motor (501) is fixedly connected to the housing (6).

Images