Transport vehicle with adjustable bearing seats

Abstract

The invention relates to the technical field of transport vehicles, in particular to a transport vehicle with adjustable bearing pedestals, which comprises two connecting cross beams and two side supports, the two connecting cross beams are symmetrically and fixedly mounted between the two side supports, and the two connecting cross beams are jointly sleeved with a sliding seat in a sliding manner; a bearing seat is fixedly installed in the sliding seat, a rotating shaft is fixedly arranged in the bearing seat in a sleeved mode, a lifting frame is fixedly installed at the top of the rotating shaft, the two ends of the sliding seat are each provided with an adjusting mechanism and a first positioning mechanism, and a second positioning mechanism is arranged in the sliding seat. The transmission shaft butt joint device has the beneficial effects that when the two side supports are blocked by other equipment and cannot integrally move or steer, the transmission shaft can be adjusted through the lifting frame, so that the transmission shaft is in butt joint with a mounting part, manual secondary carrying with the help of a crane is not needed, the operation risk is reduced, and the butt joint efficiency of the transmission shaft is improved.

Description

Technical Field

[0001] This invention relates to the field of transport vehicle technology, specifically to a transport vehicle with an adjustable bearing housing. Background Technology

[0002] Drive shafts are a key component in the manufacture of important parts. They can be shafts on ships, important shaft parts on equipment, or similar shaft or cylindrical parts. They must not be damaged by bumps or knocks during transportation and storage. Therefore, the requirements for their transport vehicles are quite high.

[0003] The design requirements for transport vehicles are simple structure, lightweight, space-saving, easy to install, easy to disassemble, easy to maintain and repair, safe and reliable, and quiet. Existing transport vehicles for transporting and storing drive shafts simply place the drive shaft on top of the vehicle and then secure it. However, during the precise alignment of the drive shaft with the mounting components, the position and angle of the transport vehicle need to be repeatedly adjusted until the drive shaft is moved to the appropriate position. In narrow or congested installation sites, the bottom of the transport vehicle may be obstructed by other equipment, preventing it from moving or turning as a whole. In such cases, manual labor using cranes or other equipment is required to move the drive shaft and rotate it in the air for alignment. This operation is risky, requires a large operating space, and the secondary handling reduces the efficiency of drive shaft alignment. Summary of the Invention

[0004] The purpose of this invention is to provide a transport vehicle with an adjustable bearing housing to solve the problems mentioned in the background art, such as the need for cranes and other equipment when the bottom of the transport vehicle is obstructed and cannot be moved or turned as a whole, which results in high operational risks and reduced efficiency of drive shaft docking due to secondary handling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transport vehicle with an adjustable bearing seat, comprising two connecting crossbeams and two side supports, the two connecting crossbeams being symmetrically fixedly installed between the two side supports, a sliding seat being slidably fitted on the exterior of the two connecting crossbeams, a bearing seat being fixedly installed inside the sliding seat, a rotating shaft being fixedly fitted inside the bearing seat, a lifting frame being fixedly installed on the top of the rotating shaft, a slot being provided in the middle of the top of each of the two connecting crossbeams, a bidirectional lead screw being rotatably installed on the bottom of the sliding seat, an adjustment mechanism and a first positioning mechanism being provided at both ends of the sliding seat, and a second positioning mechanism being provided inside the sliding seat.

[0006] Both ends of the bottom of the two side supports are fixedly installed with casters, and both ends of the top of the lifting frame are provided with arc-shaped placement grooves. Polyurethane pads are fixedly installed inside the two arc-shaped placement grooves, and ratchet straps are fixedly installed at both ends of the top of the lifting frame.

[0007] The adjusting mechanism includes a movable sleeve and a T-shaped locking block. The movable sleeve is threaded to the outside of one end of a bidirectional lead screw. An adjusting rod is rotatably mounted on the top of the movable sleeve. A transmission bracket is rotatably mounted on the top of the adjusting rod. A pushing component is provided on the top of the transmission bracket, and a guiding component is provided on the bottom of the transmission bracket. Guide rods are slidably mounted on both ends of the transmission bracket. Both guide rods are fixedly mounted on one side of the sliding seat. The T-shaped locking block is slidably mounted inside the top of the sliding seat, and the T-shaped locking block cooperates with the locking groove. A spring is fixedly mounted between the top of the T-shaped locking block and the inside of the sliding seat.

[0008] The pushing assembly includes two pushing brackets, which are symmetrically and rotatably mounted on both sides of the transmission bracket. Each of the two pushing brackets has a sliding groove at one end, and a connecting rod is slidably installed inside each of the two sliding grooves.

[0009] The guiding assembly includes a guiding groove, which is formed inside the connecting crossbeam. The guiding groove includes a trapezoidal groove and two strip grooves, with the two strip grooves respectively connected to the two sides of the trapezoidal groove. A sliding rod is slidably installed inside the guiding groove. A guiding bracket is fixedly installed on the side of the sliding rod away from the connecting crossbeam. Guide rods are slidably sleeved at both ends of the guiding bracket. Both guide rods are fixedly connected to the sliding seat. Springs are sleeved on the outside of both guide rods. Sliding grooves are formed at both ends of the guiding bracket. The ends of the two connecting rods away from the pushing bracket are slidably installed inside their respective sliding grooves.

[0010] The first positioning mechanism includes a rack, two gears, and a transmission assembly. The rack is fixedly installed at the bottom of the corresponding connecting crossbeam. The two gears are symmetrically rotated and installed inside one end of the sliding seat, and both gears mesh with the rack. A locking rod is provided below each of the two gears. The bottom ends of the two locking rods are slidably connected to the sliding seat. A spring is sleeved on the outside of each of the two locking rods. A crossbar is fixedly installed at the bottom of the two locking rods.

[0011] The transmission assembly includes a second transmission bracket and two transmission rods. Guide rods are slidably fitted at both ends of the second transmission bracket, and both guide rods are fixedly connected to a sliding seat. A lifting bracket is fixedly installed at the bottom of the second transmission bracket, with the end of the lifting bracket away from the second transmission bracket located below the crossbar. Slide grooves are provided at both ends of the second transmission bracket and both ends of the first transmission bracket. The two transmission rods are symmetrically arranged on both sides of the adjusting rod, and both transmission rods are rotatably connected to the sliding seat. Slider blocks are rotatably installed at the top and bottom of the two transmission rods, and multiple slider blocks are slidably installed inside their respective corresponding slide grooves.

[0012] The second positioning mechanism includes a transmission bracket three and two push rods. Guide rods four are slidably sleeved at both ends of the transmission bracket three. The bottoms of the two guide rods four are fixedly connected to the sliding seat. Springs four are sleeved on the outside of the two guide rods four. Positioning blocks are fixedly installed at both ends of the guide rods four away from the top of the transmission bracket three. Positioning grooves are opened at both ends of the outer side of the rotating shaft. The two positioning blocks cooperate with the two positioning grooves respectively. The ends of the two push rods that are far apart from each other are fixedly connected to their respective moving sleeves. The inclined surfaces of the ends of the two push rods that are close to each other cooperate with the transmission bracket three.

[0013] Compared with the prior art, the beneficial effects of the present invention are: By using the adjustment mechanism, the first positioning mechanism, and the second positioning mechanism, the sliding seat can be unlocked by rotating the bidirectional lead screw, allowing for horizontal adjustment of the bearing seat, rotating shaft, and support frame on its top. Simultaneously, the rotating shaft is also unlocked, and the support frame can be adjusted around the rotating shaft. When the two side supports are obstructed by other equipment and cannot be moved or turned as a whole, the drive shaft can be adjusted via the support frame to mate with the installation components. This eliminates the need for manual secondary handling with a crane, reducing operational risks and improving the mate efficiency of the drive shaft.

[0014] After the drive shaft is adjusted, the sliding seat, its top bearing seat, rotating shaft, and lifting frame can be quickly reset without repeated adjustments, facilitating the next transport of the drive shaft and meeting the transport needs of different scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the transport drive shaft structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the connecting beam and side support structure of the present invention; Figure 4 This is a partial structural diagram of the bottom of the connecting beam of the present invention; Figure 5 This is a partial cross-sectional view of the connecting beam structure of the present invention; Figure 6 This is a partial structural diagram of the present invention; Figure 7 This is a schematic diagram of the internal structure of one end of the sliding seat of the present invention; Figure 8 This is a schematic diagram of the combined structure of the adjustment mechanism, the first positioning mechanism, and the second positioning mechanism of the present invention; Figure 9This is a schematic diagram of the combined structure of the adjustment mechanism and the first positioning mechanism of the present invention; Figure 10 This is a schematic diagram of the gear structure of the present invention; Figure 11 This is a schematic diagram of the transmission rod structure of the present invention; Figure 12 This is a schematic diagram of the combined structure of one of the adjustment mechanisms and the first positioning mechanism of the present invention; Figure 13 This is a schematic diagram of the structure of the pushing component and the guiding component of the present invention; Figure 14 This is a schematic diagram of the combined structure of the bearing housing and the second positioning mechanism of the present invention; Figure 15 This is a schematic diagram of the second positioning mechanism of the present invention.

[0016] In the attached diagram, the components represented by each number are as follows: 1. Connecting beam; 2. Side bracket; 3. Caster wheel; 4. Sliding seat; 5. Bearing seat; 6. Rotating shaft; 7. Lifting frame; 8. Arc-shaped placement groove; 9. Polyurethane pad; 10. Ratchet strap; 11. Slot; 12. Two-way lead screw; 13. Moving sleeve; 14. Adjusting rod; 15. Transmission bracket one; 16. Guide rod one; 17. T-shaped locking block; 18. Spring one; 19. Rack; 20. Gear; 21. Locking rod; 22. Spring two 23. Crossbar; 24. Transmission bracket two; 25. Guide rod two; 26. Slide groove one; 27. Transmission rod; 28. Slider; 29. ​​Lifting bracket; 30. Pushing bracket; 31. Slide groove two; 32. Connecting rod; 33. Trapezoidal groove; 34. Strip groove; 35. Slide rod; 36. Guide bracket; 37. Guide rod three; 38. Spring three; 39. Slide groove three; 40. Transmission bracket three; 41. Guide rod four; 42. Spring four; 43. Positioning block; 44. Positioning groove; 45. Push rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides a technical solution: such as Figure 1 - Figure 15The transport vehicle shown includes two connecting beams 1 and two side supports 2. The two connecting beams 1 are symmetrically fixed between the two side supports 2. The two connecting beams 1 are slidably fitted with sliding seats 4 on their exteriors. The sliding seats 4 are fixedly fitted with bearing seats 5 inside. The bearing seats 5 are fixedly fitted with rotating shafts 6 inside. The top of the rotating shafts 6 is fixedly fitted with lifting frames 7. The top of the two connecting beams 1 is provided with slots 11 in the middle. The bottom of the sliding seats 4 is rotatably fitted with bidirectional lead screws 12. The two ends of the sliding seats 4 are provided with adjustment mechanisms and a first positioning mechanism. The sliding seats 4 are provided with a second positioning mechanism inside.

[0019] Both ends of the bottom of the two side brackets 2 are fixedly installed with casters 3, and both ends of the top of the lifting frame 7 are provided with arc-shaped placement grooves 8. Polyurethane pads 9 are fixedly installed inside the two arc-shaped placement grooves 8, and ratchet straps 10 are fixedly installed at both ends of the top of the lifting frame 7.

[0020] The adjustment mechanism includes a movable sleeve 13 and a T-shaped locking block 17. The movable sleeve 13 is threaded to the outside of one end of the bidirectional lead screw 12. An adjustment rod 14 is rotatably mounted on the top of the movable sleeve 13. A transmission bracket 15 is rotatably mounted on the top of the adjustment rod 14. A pushing component is provided on the top of the transmission bracket 15. A guide component is provided on the bottom of the transmission bracket 15. Guide rods 16 are slidably mounted on both ends of the transmission bracket 15. Both guide rods 16 are fixedly mounted on one side of the sliding seat 4. The T-shaped locking block 17 is slidably mounted inside the top of the sliding seat 4, and the T-shaped locking block 17 cooperates with the locking groove 11. A spring 18 is fixedly mounted between the top of the T-shaped locking block 17 and the inside of the sliding seat 4.

[0021] The pushing assembly includes two pushing brackets 30, which are symmetrically and rotatably mounted on both sides of the transmission bracket 15. Each of the two pushing brackets 30 has a sliding groove 31 at one end, and a connecting rod 32 is slidably installed inside each of the two sliding grooves 31.

[0022] The guide assembly includes a guide groove, which is formed inside the connecting beam 1. The guide groove includes a trapezoidal groove 33 and two strip grooves 34. The two strip grooves 34 are respectively connected to the two sides of the trapezoidal groove 33. A slide rod 35 is slidably installed inside the guide groove. A guide bracket 36 is fixedly installed on the side of the slide rod 35 away from the connecting beam 1. Guide rods 37 are slidably sleeved at both ends of the guide bracket 36. Both guide rods 37 are fixedly connected to the sliding seat 4. Springs 38 are sleeved on the outside of both guide rods 37. Slide grooves 39 are formed at both ends of the guide bracket 36. The ends of the two connecting rods 32 away from the push bracket 30 are slidably installed inside their respective slide grooves 39.

[0023] The first positioning mechanism includes a rack 19, two gears 20, and a transmission assembly. The rack 19 is fixedly installed at the bottom of the corresponding connecting crossbeam 1. The two gears 20 are symmetrically rotated and installed inside one end of the sliding seat 4, and both gears 20 mesh with the rack 19. A locking rod 21 is provided below each of the two gears 20. The bottom ends of the two locking rods 21 are slidably connected to the sliding seat 4. A spring 22 is sleeved on the outside of each of the two locking rods 21. A crossbar 23 is fixedly installed at the bottom of the two locking rods 21.

[0024] The transmission assembly includes a second transmission bracket 24 and two transmission rods 27. Guide rods 25 are slidably fitted at both ends of the second transmission bracket 24. Both guide rods 25 are fixedly connected to the sliding seat 4. A lifting bracket 29 is fixedly installed at the bottom of the second transmission bracket 24. The end of the lifting bracket 29 away from the second transmission bracket 24 is located below the crossbar 23. Slide grooves 26 are opened at both ends of the second transmission bracket 24 and both ends of the first transmission bracket 15. The two transmission rods 27 are symmetrically arranged on both sides of the adjusting rod 14, and both transmission rods 27 are rotatably connected to the sliding seat 4. Slider blocks 28 are rotatably installed at the top and bottom of the two transmission rods 27. Multiple sliders 28 are slidably installed inside their respective slide grooves 26.

[0025] The second positioning mechanism includes a transmission bracket 3 40 and two push rods 45. Guide rods 41 are slidably sleeved at both ends of the transmission bracket 3 40. The bottom of the two guide rods 41 is fixedly connected to the sliding seat 4. Springs 42 are sleeved on the outside of the two guide rods 41. Positioning blocks 43 are fixedly installed at both ends of the guide rods 41 away from the top of the transmission bracket 3 40. Positioning grooves 44 are opened at both ends of the rotating shaft 6. The two positioning blocks 43 cooperate with the two positioning grooves 44 respectively. The ends of the two push rods 45 that are far apart from each other are fixedly connected to their respective moving sleeves 13. The inclined surfaces of the ends of the two push rods 45 that are close to each other cooperate with the transmission bracket 3 40.

[0026] Working principle: When in use, the drive shaft to be transported is first placed inside the two arc-shaped placement slots 8. The two polyurethane pads 9 prevent the drive shaft from directly contacting the lifting frame 7, which could cause scratches on the drive shaft. Then, the drive shaft is stably fixed to the top of the lifting frame 7 by two ratchet straps 10 for transport. The casters 3 at the bottom of the two side supports 2 make it convenient for workers to transport the device. When the drive shaft is moved to a specific position for installation, the position of the lifting frame 7 can be adjusted according to the actual installation of the drive shaft. When adjusting the horizontal position of the lifting frame 7, first rotate the double-acting screw 12. The movement process of one of the adjustment mechanisms, the corresponding first positioning mechanism and the second positioning mechanism is as follows: When the double-acting screw 12 rotates, the moving sleeve 13 moves closer to the sliding seat 4, and the adjusting rod 14 pushes the transmission bracket 15 to move upward along the two guide rods 16, thereby driving the pushing component to move upward. The pushing component acts upward on the T-shaped block 17, and the T-shaped block 17 moves upward and disengages from the slot 11. The spring 18 at the top of the T-shaped block 17 is compressed by force, and at the same time, the two connecting rods 32 move upward close to the guide bracket 36 and slide upward inside their respective corresponding sliding grooves 39. During the upward movement of transmission bracket 15, transmission bracket 24 moves downward under the action of two transmission rods 27. The sliders 28 at the top and bottom of the two transmission rods 27 slide inside their respective corresponding grooves 26. As transmission bracket 24 moves downward, the lifting bracket 29 at its bottom moves downward. One end of the lifting bracket 29 does not act on the crossbar 23. The two locking rods 21 move downward under the elastic action of the two springs 22, moving away from the two gears 20. At the same time, as the two moving sleeves 13 move closer to the sliding seat 4, they drive the two pushing rods 45 to move closer to each other. At this time, transmission bracket 3 40 moves downward under the action of the two springs 42, and the two positioning blocks 43 disengage from their respective positioning grooves 44. At this point, the sliding seat 4 and the rotating shaft 6 are no longer fixed, allowing the horizontal adjustment of the bearing seat 5, the rotating shaft 6, and the lifting frame 7. The sliding seat 4 slides along the two connecting beams 1 and can also rotate around the rotating shaft 6. Since both gears 20 mesh with the rack 19, both gears 20 rotate during the sliding of the sliding seat 4, adjusting the transmission shaft to a suitable position. Then, the double-acting screw 12 is reversed. At this time, the first transmission bracket 15 drives the pushing assembly to move downward, while the second transmission bracket 24 drives the lifting bracket 29 to move upward. When the first transmission bracket 15 moves downward, the T-shaped locking block 17 moves downward under the action of the first spring 18, and its bottom contacts the corresponding connecting beam 1. As the lifting bracket 29 moves upward, it pushes the crossbar 23 and the two locking rods. When rod 21 moves upward, the tops of the two locking rods 21 respectively engage in the tooth grooves of the two gears 20, locking the two gears 20 and locking the position of the sliding seat 4. Then, the drive shaft and the mounting component can be connected and installed. Through the set adjustment mechanism, first positioning mechanism and second positioning mechanism, the sliding seat 4 can be unlocked by rotating the bidirectional screw 12, and the bearing seat 5, rotating shaft 6 and lifting frame 7 on its top can be adjusted in the horizontal direction. At the same time, the rotating shaft 6 is also unlocked, and the lifting frame 7 can be adjusted around the rotating shaft 6. When the two side supports 2 are obstructed by other equipment and cannot be moved or turned as a whole, the drive shaft can be adjusted through the lifting frame 7 to connect the drive shaft with the mounting component. There is no need for manual secondary handling with a crane, reducing operational risks and improving the connection efficiency of the drive shaft. During the unlocking and sliding process of the sliding seat 4, the slide rod 35 slides from the trapezoidal groove 33 into the interior of one of the strip grooves 34. The slide rod 35 moves outward, thereby pushing the guide bracket 36 to move outward along the two guide rods 37. The two springs 38 are compressed, pushing the bracket 30 to pull the two connecting rods 32 outward. The ends of the two connecting rods 32 away from the push bracket 30 slide inside their respective corresponding slide grooves 31. The two push brackets 30 rotate in opposite directions. The two push brackets 30 are no longer located at the bottom of the T-shaped locking block 17. When the sliding seat 4 needs to be reset, first rotate the double-acting screw 12 to move the transmission bracket 15 upward and the transmission bracket 24 downward. The two locking rods 2 1. The two gears 20 are no longer locked downwards. Since the two push brackets 30 are not located at the bottom of the T-shaped block 17, even if the transmission bracket 15 moves upwards, the two push brackets 30 will not push the T-shaped block 17 upwards. During the process of pushing the sliding seat 4 to reset, the T-shaped block 17 is inserted into the slot 11 under the action of the spring 18, and the position of the sliding seat 4 is fixed. Then the rotating shaft 6 is rotated until the two positioning slots 44 correspond to the two positioning blocks 43 respectively. Under the action of the two springs 42, the transmission bracket 3 40 drives the two positioning blocks 43 to move upwards and insert into their respective positioning slots 44. The lifting frame 7 is reset and used for the next transport of the transmission shaft.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transport vehicle with adjustable bearing seats, comprising two connecting crossbeams (1) and two side supports (2), characterized in that: Two connecting beams (1) are symmetrically fixed between two side supports (2). The two connecting beams (1) are slidably fitted with sliding seats (4) on their exteriors. A bearing seat (5) is fixedly installed inside the sliding seat (4). A rotating shaft (6) is fixedly fitted inside the bearing seat (5). A lifting frame (7) is fixedly installed on the top of the rotating shaft (6). A slot (11) is opened in the middle of the top of the two connecting beams (1). A two-way screw (12) is rotatably installed on the bottom of the sliding seat (4). An adjustment mechanism and a first positioning mechanism are provided at both ends of the sliding seat (4). A second positioning mechanism is provided inside the sliding seat (4).

2. A transport vehicle with an adjustable bearing housing according to claim 1, characterized in that: Both ends of the bottom of the two side brackets (2) are fixedly installed with casters (3), both ends of the top of the lifting frame (7) are provided with arc-shaped placement grooves (8), both inside the two arc-shaped placement grooves (8) are fixedly installed with polyurethane pads (9), and both ends of the top of the lifting frame (7) are fixedly installed with ratchet straps (10).

3. A transport vehicle with an adjustable bearing housing according to claim 1, characterized in that: The adjustment mechanism includes a movable sleeve (13) and a T-shaped locking block (17). The movable sleeve (13) is threaded to the outside of one end of a two-way lead screw (12). An adjustment rod (14) is rotatably mounted on the top of the movable sleeve (13). A transmission bracket (15) is rotatably mounted on the top of the adjustment rod (14). A pushing component is provided on the top of the transmission bracket (15). A guide component is provided on the bottom of the transmission bracket (15). Guide rods (16) are slidably mounted on both ends of the transmission bracket (15). Both guide rods (16) are fixedly mounted on one side of the sliding seat (4). The T-shaped locking block (17) is slidably mounted inside the top of the sliding seat (4). The T-shaped locking block (17) cooperates with the locking groove (11). A spring (18) is fixedly mounted between the top of the T-shaped locking block (17) and the inside of the sliding seat (4).

4. A transport vehicle with an adjustable bearing housing according to claim 3, characterized in that: The pushing assembly includes two pushing brackets (30), which are symmetrically rotated and installed on both sides of the transmission bracket (15). One end of each of the two pushing brackets (30) is provided with a sliding groove (31), and a connecting rod (32) is slidably installed inside each of the two sliding grooves (31).

5. A transport vehicle with an adjustable bearing housing according to claim 4, characterized in that: The guiding component includes a guiding groove, which is opened inside the connecting beam (1). The guiding groove includes a trapezoidal groove (33) and two strip grooves (34). The two strip grooves (34) are respectively connected to the two sides of the trapezoidal groove (33). A sliding rod (35) is slidably installed inside the guiding groove. A guide bracket (36) is fixedly installed on the side of the sliding rod (35) away from the connecting beam (1). Guide rods (37) are slidably sleeved at both ends of the guide bracket (36). Both guide rods (37) are fixedly connected to the sliding seat (4). Springs (38) are sleeved on the outside of both guide rods (37). Slide grooves (39) are opened at both ends of the guide bracket (36). The ends of the two connecting rods (32) away from the push bracket (30) are slidably installed inside their respective slide grooves (39).

6. A transport vehicle with an adjustable bearing housing according to claim 5, characterized in that: The first positioning mechanism includes a rack (19), two gears (20) and a transmission assembly. The rack (19) is fixedly installed at the bottom of the corresponding connecting beam (1). The two gears (20) are symmetrically rotated and installed inside one end of the sliding seat (4), and both gears (20) mesh with the rack (19). A locking rod (21) is provided below each of the two gears (20). The bottom ends of the two locking rods (21) are slidably connected to the sliding seat (4). A spring (22) is sleeved on the outside of each of the two locking rods (21). A crossbar (23) is fixedly installed at the bottom of the two locking rods (21).

7. A transport vehicle with an adjustable bearing housing according to claim 6, characterized in that: The transmission assembly includes a second transmission bracket (24) and two transmission rods (27). Both ends of the second transmission bracket (24) are slidably fitted with guide rods (25). Both guide rods (25) are fixedly connected to the sliding seat (4). A lifting bracket (29) is fixedly installed at the bottom of the second transmission bracket (24). The end of the lifting bracket (29) away from the second transmission bracket (24) is located below the crossbar (23). Both ends of the second transmission bracket (24) and both ends of the first transmission bracket (15) are provided with sliding grooves (26). The two transmission rods (27) are symmetrically arranged on both sides of the adjusting rod (14), and both transmission rods (27) are rotatably connected to the sliding seat (4). The top and bottom of the two transmission rods (27) are rotatably fitted with sliders (28). Multiple sliders (28) are slidably installed inside their respective corresponding sliding grooves (26).

8. A transport vehicle with an adjustable bearing housing according to claim 3, characterized in that: The second positioning mechanism includes a transmission bracket three (40) and two push rods (45). Both ends of the transmission bracket three (40) are slidably fitted with guide rods four (41). The bottoms of the two guide rods four (41) are fixedly connected to the sliding seat (4). The outside of the two guide rods four (41) is fitted with springs four (42). The two ends of the guide rods four (41) away from the top of the transmission bracket three (40) are fixedly installed with positioning blocks (43). The two ends of the rotating shaft (6) are provided with positioning grooves (44). The two positioning blocks (43) cooperate with the two positioning grooves (44) respectively. The ends of the two push rods (45) that are far apart from each other are fixedly connected with their respective moving sleeves (13). The inclined surfaces of the ends of the two push rods (45) that are close to each other cooperate with the transmission bracket three (40).

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