Rail vehicle mobile jacking machine

Abstract

The present application relates to the technical fields of mobile car lifter, in particular to a rail vehicle mobile car lifter, which comprises a lifting mechanism and a manual forklift, the lifting mechanism is arranged on the manual forklift, the lifting mechanism comprises a lifting groove, a lifting plate is arranged in the lifting groove, support frames are arranged between the lifting plates, a rotating mechanism is arranged at one end of the support frame close to the rail vehicle, the rotating mechanism comprises a supporting plate and a supporting assembly, the supporting plate is rotatably arranged at the upper end of the support frame, the supporting assembly has two and is mirror image arranged at the lower end of the supporting plate along the rotating direction of the supporting plate, and the supporting assembly comprises an abutting plate capable of abutting the lower end of the supporting plate. By arranging the rotatable supporting plate and the supporting assembly, when facing the rail vehicle and the car lifter in different angle planes, the supporting plate is rotated to fit the rail vehicle, thereby more stably supporting the rail vehicle, and the abutting plate on the supporting assembly abuts and supports the lower end of the supporting plate, improving the stability of the supporting plate.

Description

Technical Field

[0001] This invention relates to the field of mobile vehicle jacking technology, specifically to a mobile vehicle jacking machine for rail vehicles. Background Technology

[0002] With the increase in urban population, traditional road traffic is becoming increasingly congested. As a result, more and more large cities are starting to use rail vehicles for transportation. To prevent damage to rail vehicles during use, they need to be inspected and maintained regularly. During maintenance, the rail vehicles need to be lifted by a lifting machine.

[0003] Chinese patent CN214611334U provides a mobile rail vehicle jacking machine, including a manual forklift, a frame, a lifting mechanism, and a transmission mechanism. The frame is detachably mounted on the manual forklift and includes a base, a column, and a top seat. The column is vertically mounted on the base, and the top seat is located on the top of the column. The lifting mechanism is vertically movable and located on the front side of the column and above the base. The transmission mechanism is mounted on the frame and drives the lifting mechanism to move up and down.

[0004] When the aforementioned patent provides support, only the support plate at the front end of the lifting mechanism directly contacts the vehicle. This requires the vehicle and the lifting machine to be on a level plane to provide effective support. When there is a certain angle between the vehicle and the plane on which the lifting machine is located, the support surface between the support plate and the vehicle will be reduced due to the angle, thereby reducing the vehicle's support effect. Summary of the Invention

[0005] To address the problems existing in the current technology, a mobile rail vehicle jacking machine is provided. By setting a rotatable pallet and support components, when facing rail vehicles and the jacking machine at different angles, the pallet rotates to fit the rail vehicle, thus providing more stable support for the rail vehicle. Furthermore, the abutment plate on the support components abuts and supports the lower end of the pallet, improving the stability of the pallet support.

[0006] To address the problems of existing technologies, this invention provides a mobile rail vehicle jacking machine, comprising a lifting mechanism and a manual forklift. The lifting mechanism is mounted on the manual forklift and includes a vertically arranged frame. A lifting groove is vertically arranged within the frame, and two lifting plates that move up and down along a screw are arranged within the lifting groove. A support frame is arranged between the lifting plates, and a rotating mechanism is arranged at the end of the support frame near the rail vehicle. The rotating mechanism includes a pallet and a support assembly. The pallet is rotatably mounted on the upper end of the support frame and can support the rail vehicle. Two support assemblies are mirror-imagely arranged at the lower end of the pallet along the rotation direction of the pallet, and the support assembly includes an abutment plate that can abut against the lower end of the pallet.

[0007] Preferably, the support assembly further includes a lifting rod, a gear frame, and a first drive motor;

[0008] Two lifting rods are provided. The lifting rods are vertically mounted on the support frame, with one end of the lifting rod penetrating the support frame. The abutment plate is rotatably mounted at the end of the lifting rod near the support plate.

[0009] The gear frame is located at the lower end of the support frame, and two gears are rotatably mounted on the gear frame. The two gears are respectively sleeved on the two lifting rods, and the two gears mesh with each other.

[0010] The first drive motor is located on one side of the support frame, and a gear is provided at the output end of the first drive motor. The gear meshes with a gear on a lifting rod.

[0011] Preferably, the abutment plate is further provided with a detection component, which includes a detection block, an abutment block, a receiving spring, and a first pressure sensor;

[0012] The detection blocks are mirror images of the two ends of the abutment plate along the rotation direction of the pallet, and the upper end of the detection blocks is provided with detection holes;

[0013] The abutment block is movably disposed within the detection hole, and a locking block is provided on the side of the abutment block. A matching locking groove is provided on the side of the detection hole, and the locking block is movably disposed within the locking groove.

[0014] The receiving spring is installed inside the detection hole, and the two ends of the receiving spring abut against the lower end of the abutment block and the bottom end of the detection hole, respectively.

[0015] The first pressure sensor is located at the bottom of the detection hole.

[0016] Preferably, the lower end of the tray is further provided with a buffer assembly, which includes several buffer springs. The support frame is provided with several mounting posts at one end near the tray, and the buffer springs are all sleeved on the mounting posts. The end of the buffer spring away from the support frame abuts against the lower end of the tray.

[0017] Preferably, the lower end of the pallet is provided with a rotating block, the rotating block is provided with a rotating hole, the support frame is provided with a rotating shaft, the rotating hole is sleeved on the rotating shaft, the end of the rotating hole away from the rotating shaft is provided with a groove, a locking screw is provided in the groove, the locking screw is connected to the rotating shaft, and the end of the locking screw away from the rotating shaft is provided with an internal hexagonal socket.

[0018] Preferably, the support frame is provided with a movable groove, which is perpendicular to the rail vehicle. A rack is provided at the upper end of the movable groove. A second drive motor is provided on one side of the lifting plate. The output shaft of the second drive motor passes through the lifting plate and the support frame. The output shaft of the second drive motor is provided with a gear that meshes with the rack. A first electric push rod is also provided on one side of the second drive motor. A locking block is provided at the output end of the first electric push rod. The locking block can abut against the output shaft of the second drive motor.

[0019] Preferably, the vehicle-mounting machine further includes a first support mechanism, which includes a support plate, a support block, a third drive motor, and a double-ended screw.

[0020] The lower end of the support frame near the rail vehicle is provided with a sliding groove along the direction of the rail vehicle, and a limit groove is provided in the sliding groove.

[0021] The support plate has two parts, one end of which is movably disposed in the slide groove. The support plate is also provided with a limiting block that cooperates with the limiting groove. The limiting block is movably disposed in the limiting groove.

[0022] The support blocks are numerous and located at one end opposite to the support plate. The support blocks are horizontally and linearly distributed. Several support grooves are vertically arranged on the inner side of the lifting groove. The support blocks are slidably arranged in the support grooves.

[0023] The third drive motor is located between the two support plates. The third drive motor moves with the support frame. The output of the third drive motor is equipped with a bevel gear.

[0024] The upper part of the double-ended screw is fitted with a bevel gear that meshes with the bevel gear on the third drive motor, and the two ends of the double-ended screw are respectively installed through the support plate.

[0025] Preferably, the car-lifting machine further includes two second support mechanisms, which are mirror images of each other at the bottom of the frame along the direction of the rail vehicle. Each second support mechanism includes a movable base, a second electric push rod, a guide rod, and a moving rod.

[0026] The movable base is located at the bottom end of the frame facing the rail vehicle.

[0027] The second electric push rod is located on one side of the bottom end of the frame;

[0028] The guide rod is disposed at one end of the movable base, and the end of the guide rod away from the movable base is slidably disposed at the lower end of the frame.

[0029] The movable rod is located at the end of the movable base away from the movable rod, and the output end of the second electric push rod is connected to the movable rod.

[0030] Preferably, a detection nut is also provided below the support frame. The detection nut is sleeved on the screw. A second pressure sensor is provided at the upper end of the detection nut. The output end of the second pressure sensor is in contact with the lower end of the support frame. A sliding rod is provided on the side of the detection nut. A sliding groove is provided on the lifting plate. The sliding rod is movably disposed in the sliding groove.

[0031] Preferably, a laser alignment line and a distance sensor are provided on one side of the frame, and an alignment hole is provided at the end of the frame away from the laser alignment line.

[0032] The advantages of this application compared to the prior art are:

[0033] 1. This application provides a rotating mechanism, which includes a rotatable pallet and a support assembly supporting the pallet. When facing rail vehicles and jacking machines at different angles, the pallet can rotate, allowing it to fit more closely to the rail vehicle and thus provide more stable support. Furthermore, the abutment plate on the support assembly abuts and supports the lower end of the pallet, making the support of the pallet more stable.

[0034] 2. This application uses a detection block installed on the side of the abutment plate, which contains the abutment block and a first pressure sensor. This allows for continuous monitoring of the pressure during the contact process between the abutment plate and the support plate. When the pressure stops changing, it indicates that the abutment plate and the support plate are fully in contact. This allows the data to be transmitted to the operating table, causing the first drive motor to stop moving and preventing excessive pushing of the abutment plate, which could damage the lifting rod and the abutment plate.

[0035] 3. This application provides a support plate that moves with the support frame. Several support blocks are provided on one end of the support plate near the lifting groove. The support blocks cooperate with the support grooves in the lifting groove to support the support plate. The support plate supports the support frame, thereby ensuring that the support frame can maintain a stable support effect after movement. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of a mobile rail vehicle jacking machine.

[0037] Figure 2 A partial three-dimensional structural diagram of a mobile rail vehicle jacking machine. Figure 1 .

[0038] Figure 3 This is a partial front view of a mobile rail vehicle jacking machine.

[0039] Figure 4 A partially exploded view of a mobile rail vehicle jacking machine.Figure 1 .

[0040] Figure 5 This is a cross-sectional view of the inspection component of a mobile rail vehicle jacking machine.

[0041] Figure 6 yes Figure 4 A magnified view of a section at point B.

[0042] Figure 7 This is a cross-sectional view of the support frame of a mobile rail vehicle jacking machine.

[0043] Figure 8 yes Figure 2 A magnified view of a portion of point A in the middle.

[0044] Figure 9 A partially exploded view of a mobile rail vehicle jacking machine. Figure 2 .

[0045] Figure 10 This is a three-dimensional structural diagram of the frame of a mobile rail vehicle jacking machine.

[0046] Figure 11 This is a three-dimensional structural diagram of a partial frame and second support mechanism of a mobile rail vehicle jacking machine.

[0047] Figure 12 A partial three-dimensional structural diagram of a mobile rail vehicle jacking machine. Figure 2 .

[0048] Figure 13 This is a three-dimensional structural diagram of the inspection nut of a mobile rail vehicle jacking machine.

[0049] The diagram is labeled as follows: 1-Manual forklift; 2-Lifting mechanism; 21-Frame; 211-Lifting slot; 2111-Support slot; 212-Alignment hole; 22-Lifting plate; 221-Second drive motor; 222-First electric push rod; 2221-Locking block; 223-Sliding slot; 23-Support frame; 231-Gear frame; 232-Mounting column; 233-Rotating shaft; 234-Moving slot; 235-Rack; 236-Slide groove; 237-Limiting slot; 24-Detection nut; 241-Second pressure sensor; 242-Sliding rod; 25-Laser alignment line; 26-Distance sensor; 3-Rotating mechanism; 31-Pattern; 311-Rotating block; 312-Rotating hole; 31 3-Groove; 32-Support assembly; 321-Abutting plate; 3211-Detection block; 3212-Detection hole; 3213-Slot; 322-Lifting rod; 323-First drive motor; 33-Detection assembly; 331-Abutting block; 3311-Card block; 332-Supporting spring; 333-First pressure sensor; 34-Locking screw; 341-Internal hexagonal socket; 35-Buffer assembly; 351-Buffer spring; 4-First support mechanism; 41-Support plate; 411-Limiting block; 42-Support block; 43-Third drive motor; 44-Double-ended screw; 5-Second support mechanism; 51-Moving base; 52-Second electric push rod; 53-Guide rod; 54-Moving rod. Detailed Implementation

[0050] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0051] See Figures 1 to 3 As shown, a mobile rail vehicle jacking machine includes a lifting mechanism 2 and a manual forklift 1. The lifting mechanism 2 is mounted on the manual forklift 1 and includes a vertically arranged frame 21. A lifting groove 211 is vertically arranged inside the frame 21. Two lifting plates 22 that move up and down along a screw are arranged inside the lifting groove 211. A support frame 23 is arranged between the lifting plates 22. A rotating mechanism 3 is arranged at the end of the support frame 23 near the rail vehicle. The rotating mechanism 3 includes a pallet 31 and a support assembly 32. The pallet 31 is rotatably arranged on the upper end of the support frame 23 and can support the rail vehicle. There are two support assemblies 32, which are mirror images of the lower end of the pallet 31 along the rotation direction of the pallet 31. The support assembly 32 includes an abutment plate 321 that can abut against the lower end of the pallet 31.

[0052] In its specific working state, the two lifting plates 22 are set vertically, and the support frame 23 is set between the lifting plates 22. When the support frame 23 needs to move up and down, the lifting plates 22 drive the lifting frame to move up and down. The support plate 31 at the upper end of the lifting frame supports the rail vehicle until the rail vehicle is lifted to a certain height.

[0053] When the jacking machine is at a certain angle relative to the rail vehicle along the direction of the rail vehicle's movement, the pallet 31 directly supports the rail vehicle. The contact area between the rail vehicle and the jacking machine becomes smaller, resulting in unstable support and potential damage to the rail vehicle. In this case, by setting a rotating mechanism 3, when the pallet 31 contacts the rail vehicle, the relatively tilted rail vehicle pushes the pallet 31, causing the pallet 31 to rotate at a certain angle. This rotation allows the pallet 31 to fully contact the rail vehicle, increasing the contact area and making the support more stable. Furthermore, the abutment plate 321 on the support assembly 32 supports the pallet 31, thereby fixing the angle of the pallet 31 and improving the stability of the pallet 31 support.

[0054] By setting a rotating mechanism 3, which includes a rotatable pallet 31 and a support assembly 32 supporting the pallet 31, the pallet 31 can rotate when facing rail vehicles and jacking machines at different angles. This allows the pallet 31 to fit more closely to the rail vehicle and support it more stably. Furthermore, the abutment plate 321 on the support assembly 32 abuts and supports the lower end of the pallet 31, making the support of the pallet 31 more stable.

[0055] See Figure 2 and Figure 3 As shown, the support assembly 32 also includes a lifting rod 322, a gear frame 231, and a first drive motor 323. Two lifting rods 322 are provided, vertically mounted on the support frame 23, with one end of each rod penetrating the support frame 23. A contact plate 321 is rotatably mounted on the end of the lifting rod 322 near the support plate 31. The gear frame 231 is located at the lower end of the support frame 23, and two gears are rotatably mounted on it. These two gears are respectively fitted onto the two lifting rods 322, and the two gears mesh with each other. The first drive motor 323 is located on one side of the support frame 23, and its output end has a gear that meshes with a gear on one of the lifting rods 322.

[0056] When facing rail vehicles at different angles, the support plate 31 rotates and comes into contact with the rail vehicle. After the support plate 31 is fully against the lower end of the rail vehicle, the support assembly 32 begins to move, and the first drive motor 323 starts to rotate. The rotation of the first motor drives the gears to rotate, and then through the meshing of multiple gears, the movement of the gears is transmitted to the lifting rods 322. The outer ends of the two lifting rods 322 are provided with threads with different directions, and the gears on the lifting rods 322 are restricted to rotation by the gear frame 231. The gears drive the two lifting rods 322 to move up and down. The lifting rods 322 drive the abutment plate 321 to move towards the lower end of the support plate 31. The contact between the abutment plate 321 and the support plate 31 causes the abutment plate 321 to rotate at a certain angle, making the support effect more solid.

[0057] The lifting rod 322 firmly supports the abutment plate 321 at the lower end of the pallet 31, making the pallet 31 more stable when supporting rail vehicles. The lifting rod 322 and the abutment plate 321 bear a certain amount of pressure, which shares the pressure of the rotating shaft 233 of the pallet 31 and improves the service life of the pallet 31.

[0058] See Figure 4 and Figure 5 As shown, the abutment plate 321 is also provided with a detection component 33. The detection component 33 includes a detection block 3211, an abutment block 331, a receiving spring 332, and a first pressure sensor 333. The detection block 3211 is mirror-displayed at both ends of the abutment plate 321 along the rotation direction of the support plate 31. The upper end of the detection block 3211 is provided with a detection hole 3212. The abutment block 331 is movably disposed in the detection hole 3212. A locking block 3311 is provided on the side of the abutment block 331. A matching locking groove 3213 is provided on the side of the detection hole 3212. The locking block 3311 is movably disposed in the locking groove 3213. The receiving spring 332 is disposed in the detection hole 3212. The two ends of the receiving spring 332 abut against the lower end of the abutment block 331 and the bottom end of the detection hole 3212, respectively. The first pressure sensor 333 is disposed at the bottom end of the detection hole 3212.

[0059] The slot 3213 inside the detection hole 3212 is not connected to the outside, so the abutment block 331 will not fall out of the detection hole 3212 through the locking block 3311. Under the action of the supporting spring 332, part of the abutment block 331 is exposed outside the detection hole 3212. When the support assembly 32 starts to move, the abutment plate 321 gradually becomes parallel to the lower end of the support plate 31, and the exposed part of the abutment block 331 begins to contact the support plate 31. Under the action of the support plate 31, the abutment block 331 returns to the detection hole 3212. Inside, the pressure detected by the first pressure sensor 333 begins to change until the abutment block 331 falls completely into the detection hole 3212. At this point, the pressure detected by the first pressure sensor 333 stops changing. When neither of the two first pressure sensors 333 changes, it means that the abutment plate 321 is completely abutting the lower end of the support plate 31. The data is transmitted to the operating table, and the first drive motor 323 stops moving, preventing the lifting rod 322 from pushing the abutment plate 321 too much, thereby damaging the support component 32.

[0060] See Figure 3 and Figure 4 As shown, a buffer assembly 35 is also provided at the lower end of the tray 31. The buffer assembly 35 includes several buffer springs 351. Several mounting posts 232 are provided at the end of the support frame 23 near the tray 31. The buffer springs 351 are all sleeved on the mounting posts 232. The end of the buffer springs 351 away from the support frame 23 abuts against the lower end of the tray 31.

[0061] When the pallet 31 comes into contact with the rail vehicle, the pallet 31 begins to rotate under the push of the rail vehicle. The buffer spring 351 buffers the initial impact force of the rail vehicle on the pallet 31, allowing the pallet 31 to make contact with the rail vehicle more smoothly. In normal conditions, the buffer spring 351 pushes the pallet 31 back to its original position for easy use next time. The mounting post 232 facilitates the installation of the buffer spring 351 and is located only in the lower half of the buffer spring 351.

[0062] See Figure 4 and Figure 6 As shown, a rotating block 311 is provided at the lower end of the pallet 31, and a rotating hole 312 is provided on the rotating block 311. A rotating shaft 233 is provided on the support frame 23. The rotating hole 312 is sleeved on the rotating shaft 233. A groove 313 is provided at the end of the rotating hole 312 away from the rotating shaft 233. A locking screw 34 is provided in the groove 313. The locking screw 34 is connected to the rotating shaft 233. An internal hexagonal socket 341 is provided at the end of the locking screw 34 away from the rotating shaft 233.

[0063] As the part that directly contacts the rail vehicle, the pallet 31 is easily damaged. When the pallet 31 needs to be installed, the rotating hole 312 at the lower end of the pallet 31 is first fitted onto the rotating shaft 233, so that the pallet 31 can rotate around the rotating shaft 233. Then, the locking screw 34 is rotatably set in the groove 313, and the locking screw 34 abuts against the groove 313, thereby preventing the pallet 31 from detaching from the rotating shaft 233. The installation is quick and easy, which makes it convenient to replace the pallet 31. The internal hexagonal socket 341 facilitates the installation of the locking screw 34, and the groove 313 hides the protruding part of the locking screw 34, so that external factors are less likely to rotate the locking screw 34 and affect the installation of the pallet 31.

[0064] See Figure 7 and Figure 8 As shown, a movable groove 234 is provided inside the support frame 23. The movable groove 234 is perpendicular to the rail vehicle. A rack 235 is provided at the upper end of the movable groove 234. A second drive motor 221 is provided on one side of the lifting plate 22. The output shaft of the second drive motor 221 passes through the lifting plate 22 and the support frame 23. A gear that meshes with the rack 235 is provided on the output shaft of the second drive motor 221. A first electric push rod 222 is also provided on one side of the second drive motor 221. A locking block 2221 is provided at the output end of the first electric push rod 222. The locking block 2221 can abut against the output shaft of the second drive motor 221.

[0065] When faced with different rail vehicles, the distance between the support frame 23 and the rail vehicle sometimes needs to be adjusted to ensure that the support plate 31 can better support the rail vehicle. When the support frame 23 needs to be adjusted, the second drive motor 221 starts to rotate. The rotation of the second drive motor 221 drives the rack 235 to rotate through the gear. The lifting plate 22 drives the support frame 23 to move through the rods set at the upper and lower ends of the support frame 23 without affecting the horizontal displacement of the support frame 23. Thus, the support frame 23 moves under the drive of the rack 235. When it moves to a certain position, the first electric push rod 222 moves, and the second electric push rod 52 drives the locking block 2221 to move toward the output shaft of the second drive motor 221 until it abuts the output shaft of the second drive motor 221, thereby locking the output shaft of the second drive motor 221. The support frame 23 no longer moves, and the support plate 31 on the support frame 23 can then stably start to support the rail vehicle.

[0066] See Figure 2 , Figure 9 and Figure 10As shown, the vehicle jacking machine also includes a first support mechanism 4, which includes a support plate 41, a support block 42, a third drive motor 43, and a double-ended screw 44. The lower end of the support frame 23 near the rail vehicle is provided with a sliding groove 236 along the rail vehicle direction. A limiting groove 237 is provided within the sliding groove 236. Two support plates 41 are provided, one end of which is movably disposed within the sliding groove 236. A limiting block 411, which cooperates with the limiting groove 237, is also provided on the support plate 41. The limiting block 411 is movably disposed within the limiting groove 237. The support blocks 42 are numerous and located at one end opposite to the support plate 41. The support blocks 42 are horizontally and linearly distributed. Several support grooves 2111 are vertically arranged on the inner side of the lifting groove 211. The support blocks 42 are slidably arranged in the support grooves 2111. The third drive motor 43 is located between the two support plates 41. The third drive motor 43 moves with the support frame 23. The output of the third drive motor 43 is provided with a bevel gear. The double-headed screw 44 is fitted with a bevel gear that meshes with the bevel gear on the third drive motor 43. The two ends of the double-headed screw 44 are respectively installed through the support plate 41.

[0067] When the support frame 23 begins to move, the support position of the pallet 31 changes relative to the frame 21. This reduces the stability of the support frame 23 for the pallet 31, so the support frame 23 at the lower end of the pallet 31 needs to provide support. When the support frame 23 moves, it drives the support plate 41 to move, and the movement of the support plate 41 drives the support block 42 to move. When it reaches a certain position, the third drive motor 43 starts to rotate. The third drive motor 43 drives the double-ended screw 44 to rotate through the bevel gear. The rotation of the double-ended screw 44 drives the support plate 41 to move along the slide groove 236. The back movement causes the support plate 41 to move toward the inside of the lifting groove 211, so that the support block 42 can contact the support groove 2111. The support block 42 supports the part of the support frame 23 located below the pallet 31 through the support plate 41. In this way, even after the support frame 23 moves, the first support mechanism 4 still supports the support frame 23 at the pallet 31, ensuring the stability of the support frame 23. The cooperation between the limiting block 411 and the limiting groove 237 ensures that the support plate 41 will not disengage from the slide groove 236. The cooperation of one support block 42 with different support grooves 2111 corresponds to different movement distances of the support frame 23.

[0068] See Figure 1 , Figure 10 and Figure 11As shown, the car-lifting machine also includes two second support mechanisms 5. The second support mechanisms 5 are mirror images of each other at the bottom of the frame 21 along the direction of the rail vehicle. Each second support mechanism 5 includes a movable base 51, a second electric push rod 52, a guide rod 53, and a moving rod 54. The movable base 51 is located at the bottom of the frame 21 facing the rail vehicle. The second electric push rod 52 is located on one side of the bottom of the frame 21. The guide rod 53 is located at one end of the movable base 51. The end of the guide rod 53 away from the movable base 51 is slidably located at the lower end of the frame 21. The moving rod 54 is located at the end of the movable base 51 away from the moving rod 54. The output end of the second electric push rod 52 is connected to the moving rod 54.

[0069] When the support frame 23 moves and the pallet 31 begins to support the rail vehicle, the center of gravity of the entire car-lifting machine also begins to move towards one end of the rail vehicle. As a result, the base of the frame 21 is not stable enough. By setting up a second support mechanism 5, when the support frame 23 begins to move, the second electric push rod 52 also begins to move. The second electric push rod 52 drives the moving rod 54 to move towards one side of the rail vehicle. The moving rod 54 pushes the moving base 51 to move towards one end of the rail vehicle, thereby increasing the support area of ​​the base of the frame 21. This allows for better support of the car-lifting machine. The guide rod 53 plays a guiding role when the moving base 51 moves. The two second support mechanisms 5 can more stably support the frame 21.

[0070] See Figure 12 and Figure 13 As shown, a detection nut 24 is also provided below the support frame 23. The detection nut 24 is sleeved on the screw. A second pressure sensor 241 is provided at the upper end of the detection nut 24. The output end of the second pressure sensor 241 is in contact with the lower end of the support frame 23. A sliding rod 242 is provided on the side of the detection nut 24. A sliding groove 223 is provided on the lifting plate 22. The sliding rod 242 is movably disposed in the sliding groove 223.

[0071] Since the detection nut 24 is fitted onto the screw, a sliding rod 242 is provided on the outside of the detection nut 24. The sliding rod 242 cooperates with the sliding groove 223, so the detection nut 24 moves synchronously with the support frame 23 and the lifting plate 22. The lifting plate 22 and the support frame 23 provide direct support for the rail vehicle, so the contact surface with the screw is easily damaged. After a certain period of time, the lifting plate 22 and the support frame 23 will slip off, but the detection nut 24 is not under force and will not be easily damaged. The falling support frame 23 begins to abut against the second pressure sensor 241 on the detection nut 24. The second pressure sensor 241 then transmits data to the operating panel. When the pressure detected by the second pressure sensor 241 is too high, it means that the contact surface between the support frame 23 and the screw is severely damaged and needs repair. By setting the detection nut 24, it is ensured that the lifting machine can be repaired in a timely manner.

[0072] See Figure 10 and Figure 11 As shown, a laser alignment line 25 and a distance sensor 26 are provided on one side of the frame 21, and an alignment hole 212 is also provided at the end of the frame 21 away from the laser alignment line 25.

[0073] The lifting of the rail vehicle requires multiple lifting machines. By setting up a laser aiming line, when the lifting machine is moved by a manual forklift 1, the laser aiming line 25 is activated, which makes it easier to adjust multiple lifting machines into a straight line, resulting in more uniform and stable support. The distance sensor 26 will facilitate the adjustment of the distance between the lifting machines.

[0074] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A mobile rail vehicle lifting machine, comprising a lifting mechanism (2) and a manual forklift (1), wherein the lifting mechanism (2) is mounted on the manual forklift (1), characterized in that, The lifting mechanism (2) includes a vertically arranged frame (21), a vertically arranged lifting groove (211) in the frame (21), two lifting plates (22) that move up and down along a screw in the lifting groove (211), a support frame (23) between the lifting plates (22), and a rotating mechanism (3) at the end of the support frame (23) near the rail vehicle. The rotating mechanism (3) includes a pallet (31) and a support assembly (32). The pallet (31) is rotatably arranged at the upper end of the support frame (23) and can support the rail vehicle. The support assembly (32) has two components and is mirror-arranged at the lower end of the pallet (31) along the rotation direction of the pallet (31). The support assembly (32) includes an abutment plate (321) that can abut against the lower end of the pallet (31). The support assembly (32) also includes a lifting rod (322), a gear frame (231), and a first drive motor (323); The lifting rod (322) is configured as two, the lifting rod (322) is vertically mounted on the support frame (23), one end of the lifting rod (322) passes through the support frame (23), and the abutment plate (321) is rotatably mounted on the end of the lifting rod (322) near the support plate (31); The gear frame (231) is located at the lower end of the support frame (23). Two gears are rotatably mounted on the gear frame (231). The two gears are respectively sleeved on the two lifting rods (322) and the two gears mesh with each other. The first drive motor (323) is located on one side of the support frame (23), and a gear is provided at the output end of the first drive motor (323). The gear meshes with a gear on a lifting rod (322). The abutment plate (321) is also provided with a detection component (33), which includes a detection block (3211), an abutment block (331), a receiving spring (332), and a first pressure sensor (333). The detection block (3211) is mirror-arranged at both ends of the abutment plate (321) along the rotation direction of the support plate (31), and the upper end of the detection block (3211) is provided with a detection hole (3212); The abutment block (331) is movably disposed in the detection hole (3212), and a locking block (3311) is provided on the side of the abutment block (3311). A matching locking groove (3213) is provided on the side of the detection hole (3212), and the locking block (3311) is movably disposed in the locking groove (3213). The receiving spring (332) is disposed in the detection hole (3212), and the two ends of the receiving spring (332) abut against the lower end of the abutment block (331) and the bottom end of the detection hole (3212), respectively. The first pressure sensor (333) is located at the bottom of the detection hole (3212).

2. The mobile rail vehicle jacking machine according to claim 1, characterized in that, The lower end of the tray (31) is also provided with a buffer assembly (35), which includes several buffer springs (351). The support frame (23) is provided with several mounting posts (232) at one end near the tray (31). The buffer springs (351) are all sleeved on the mounting posts (232), and the end of the buffer spring (351) away from the support frame (23) abuts against the lower end of the tray (31).

3. The mobile rail vehicle jacking machine according to claim 1, characterized in that, The lower end of the tray (31) is provided with a rotating block (311), the rotating block (311) is provided with a rotating hole (312), the support frame (23) is provided with a rotating shaft (233), the rotating hole (312) is sleeved on the rotating shaft (233), the end of the rotating hole (312) away from the rotating shaft (233) is provided with a groove (313), a locking screw (34) is provided in the groove (313), the locking screw (34) is connected to the rotating shaft (233), and the end of the locking screw (34) away from the rotating shaft (233) is provided with an internal hexagonal socket (341).

4. The mobile rail vehicle jacking machine according to claim 1, characterized in that, The support frame (23) is provided with a moving groove (234), which is perpendicular to the rail vehicle. A rack (235) is provided at the upper end of the moving groove (234). A second drive motor (221) is provided on one side of the lifting plate (22). The output shaft of the second drive motor (221) passes through the lifting plate (22) and the support frame (23). The output shaft of the second drive motor (221) is provided with a gear that meshes with the rack (235). A first electric push rod (222) is also provided on one side of the second drive motor (221). A locking block (2221) is provided at the output end of the first electric push rod (222). The locking block (2221) can abut against the output shaft of the second drive motor (221).

5. A mobile rail vehicle jacking machine according to claim 4, characterized in that, The vehicle-mounting machine also includes a first support mechanism (4), which includes a support plate (41), a support block (42), a third drive motor (43), and a double-headed screw (44). The support frame (23) has a sliding groove (236) along the direction of the rail vehicle at its lower end near the rail vehicle side, and a limiting groove (237) is provided in the sliding groove (236); The support plate (41) has two parts. One end of the support plate (41) is movably disposed in the slide groove (236). The support plate (41) is also provided with a limiting block (411) that cooperates with the limiting groove (237). The limiting block (411) is movably disposed in the limiting groove (237). The support block (42) has several and is located at one end opposite to the support plate (41). The support block (42) is horizontally and linearly distributed. Several support grooves (2111) are vertically arranged on the inner side of the lifting groove (211). The support block (42) is slidably arranged in the support groove (2111). The third drive motor (43) is located between the two support plates (41). The third drive motor (43) moves with the support frame (23). The output of the third drive motor (43) is provided with a bevel gear. The double-ended screw (44) is fitted with a bevel gear that meshes with the bevel gear on the third drive motor (43), and the two ends of the double-ended screw (44) are respectively mounted on the support plate (41).

6. A mobile rail vehicle jacking machine according to claim 5, characterized in that, The vehicle jacking machine also includes two second support mechanisms (5), which are mirror images of the bottom of the frame (21) along the direction of the rail vehicle. The second support mechanism (5) includes a movable base (51), a second electric push rod (52), a guide rod (53), and a movable rod (54). The movable base (51) is located at the bottom end of the frame (21) facing the rail vehicle; The second electric push rod (52) is located on one side of the bottom end of the frame (21); The guide rod (53) is disposed at one end of the movable base (51), and the end of the guide rod (53) away from the movable base (51) is slidably disposed at the lower end of the frame (21); The movable rod (54) is located at one end of the movable base (51) away from the movable rod (54), and the output end of the second electric push rod (52) is connected to the movable rod (54).

7. A mobile rail vehicle jacking machine according to claim 1, characterized in that, A detection nut (24) is also provided below the support frame (23). The detection nut (24) is sleeved on the screw. A second pressure sensor (241) is provided at the upper end of the detection nut (24). The output end of the second pressure sensor (241) is in contact with the lower end of the support frame (23). A sliding rod (242) is provided on the side of the detection nut (24). A sliding groove (223) is provided on the lifting plate (22). The sliding rod (242) is movably disposed in the sliding groove (223).

8. A mobile rail vehicle jacking machine according to claim 1, characterized in that, A laser alignment line (25) and a distance sensor (26) are provided on one side of the frame (21), and an alignment hole (212) is also provided at the end of the frame (21) away from the laser alignment line (25).

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