Self-loading and unloading transfer vehicle
By designing self-loading and unloading transfer vehicles, the flexible movement of the take-off and landing device is achieved using lifting and lowering cylinders and transverse cylinders, the problem that existing forklifts cannot be loaded and unloaded in a narrow space is solved, and the flexible loading and unloading of the vehicle in a narrow space is realized, reducing the complexity and cost of the loading and unloading process.
Patent Information
- Application Number
- CN202420802321.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The existing forklifts are large in size and costly, and cannot carry out forklift operations in a narrow space, resulting in frequent loading and unloading of vehicles during transfer, and the loading and unloading process is inconvenient.
A self-loading and unloading transfer vehicle is designed, including a vehicle chassis, take-off and landing device, transverse oil cylinder and support mechanism. The lifting and lowering of the hanger and L-shaped fork are realized through the lifting and lowering of the hanger and the L-shaped fork, and the transverse oil cylinder is realized by moving the front and back of the take-off and landing device. The support mechanism is supported on the ground during loading and unloading to ensure the stability of the vehicle.
It realizes flexible loading and unloading and transfer of vehicles in a narrow space, reduces the complexity and cost of the loading and unloading process, and can be used as a flatbed truck when loading and unloading goods.
Smart Images
Figure CN222989696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a transfer vehicle, in particular to a transfer vehicle with a self-loading and unloading function. Background Art
[0002] When a vehicle is used for transfer, loading and unloading are required frequently. When loading and unloading heavy objects, a forklift is often needed. Existing forklifts are large in size and high in cost, and cannot perform forklift operations in narrow spaces. Content of the Utility Model
[0003] Aiming at the above defects existing in the prior art, the utility model provides a self-loading and unloading transfer vehicle with a simple structure and flexible use.
[0004] The utility model is realized by the following technical scheme: A self-loading and unloading transfer vehicle includes a vehicle chassis. It is characterized in that: it further includes a lifting device, a transverse movement oil cylinder, and a support mechanism. A disc seat is arranged on the vehicle chassis. The disc seat is provided with two parallel U-shaped steel beams, and the U-shaped grooves of the two U-shaped steel beams are arranged oppositely. The lifting device includes a gantry, a hanging rack, a lifting oil cylinder, and two lifting chains. The gantry is arranged vertically. Two sprockets are arranged on the upper part of the gantry. The two lower ends of the gantry are respectively movably matched with the U-shaped grooves of the two U-shaped steel beams. The hanging rack is slidably arranged on the front side of the gantry. An L-shaped fork body is arranged on the hanging rack. One end of the lifting oil cylinder is connected to the upper part of the gantry. On both sides of the other end of the lifting oil cylinder, oil cylinder support shafts are symmetrically arranged. The two oil cylinder support shafts are respectively slidably matched with the chutes arranged on the inner sides of the two door columns of the gantry. Both ends of the two lifting chains are connected to the hanging rack, and the other ends are connected to the movable end of the lifting oil cylinder after passing around the sprockets on the upper part of the gantry. One end of the transverse movement oil cylinder is connected to the rear end of the disc seat, and the other end is connected to the gantry. The support mechanism is arranged at the front end of the disc seat. The support mechanism includes two support oil cylinders. The upper ends of the two support oil cylinders are respectively fixedly connected to the two U-shaped steel beams. Lower support seats are connected to the lower ends of the two support oil cylinders.
[0005] In the utility model, the hanging rack can move along the gantry. When the lifting oil cylinder acts, the movable end of the lifting oil cylinder can drive the lifting chain connected thereto to move, and then the hanging rack can be driven to lift through the lifting chain, so that the L-shaped fork body on the hanging rack can be driven to lift synchronously. When the movable end of the lifting oil cylinder moves, it can be guided by the cooperation of the two oil cylinder support shafts and the chutes on the two door columns of the gantry to ensure the reliable action of the lifting oil cylinder. Through the action of the transverse movement oil cylinder, the gantry can be pushed to move along the U-shaped steel beam, and the front and rear movement of the lifting device can be realized. After the piston rods of the two support oil cylinders of the support mechanism extend, the lower support seats can be supported on the ground to ensure the stability of the vehicle when loading and unloading heavy objects. When not loading and unloading goods, the support oil cylinders can be retracted.
[0006] Further, to ensure the reliable connection between the hanging rack and the gantry, guiding steel beams with a trapezoidal cross-section of the mating part are provided on both gantry columns. Corresponding sliders with trapezoidal grooves are provided on the hanging rack. The hanging rack is slidably mated with the guiding steel beams on the gantry through its sliders, and nylon wear-resistant blocks are provided at the mating surface between the guiding steel beams and the sliders. Through the mating of the guiding steel beams with a trapezoidal mating part and the sliders with trapezoidal grooves, the hanging rack can be prevented from falling off, ensuring the safety of loading and unloading heavy objects. The nylon wear-resistant blocks provided between the guiding steel beams and the sliders can ensure the reliable sliding of the hanging rack.
[0007] Further, to ensure the reliable connection between the hanging rack and the gantry, guiding steel beams with a T-shaped cross-section of the mating part are provided on both gantry columns. Corresponding sliders with T-shaped grooves are provided on the hanging rack. The hanging rack is slidably mated with the guiding steel beams on the gantry through its sliders, and nylon wear-resistant blocks are provided at the mating surface between the guiding steel beams and the sliders. Through the mating of the guiding steel beams with a T-shaped mating part and the sliders with T-shaped grooves, the hanging rack can be prevented from falling off, ensuring the safety of loading and unloading heavy objects. The nylon wear-resistant blocks provided between the guiding steel beams and the sliders can ensure the reliable sliding of the hanging rack.
[0008] Further, to ensure the safety of the gantry movement, a limiting plate is provided at the end of the U-shaped steel beam.
[0009] Further, a rolling shaft is connected to the lower end of the gantry. Both ends of the rolling shaft are respectively mated with the U-shaped grooves of two U-shaped steel beams through bearings; a transverse movement oil cylinder is connected to the rolling shaft. The transverse movement oil cylinder moves the gantry by pushing the rolling shaft, and the gantry can move along the U-shaped grooves of the two U-shaped steel beams through the bearings at both ends of the rolling shaft.
[0010] Further, to ensure the safety of the gantry movement, the open end of the U-shaped groove of the U-shaped steel beam is of an inward buckling structure.
[0011] Further, there are two transverse movement oil cylinders.
[0012] Further, a rotatable rolling shaft is connected to the lower end of the gantry. Both ends of the rolling shaft are slidably mated with the U-shaped grooves of two U-shaped steel beams, a bearing is provided in the middle of the rolling shaft, and the transverse movement oil cylinder is connected to the bearing seat of the bearing on the rolling shaft.
[0013] The beneficial effects of the present utility model are as follows: The present utility model has the functions of loading, unloading and transshipment. By providing a lifting device on the vehicle chassis, the lifting device can be lifted and moved back and forth, with flexible use, and can facilitate the loading and unloading operations. By providing a support mechanism at the front ends of two U-shaped steel beams, it can be supported on the ground when loading and unloading heavy objects, ensuring the stability of the vehicle when loading and unloading heavy objects. The structure of the present utility model is simple, small in size and low in cost, and is particularly suitable for loading and unloading operations in narrow spaces. When not in the loading and unloading operation, the lifting device in the present utility model can be moved to the rear end or the lifting device can be disassembled and used as a flatbed truck. Brief Description of the Drawings
[0014] Figure 1 is a schematic structural view of the present utility model;
[0015] Figure 2 is a schematic connection view of the lifting chain in the present utility model;
[0016] Figure 3 is Figure 2 a schematic view in the B direction in
[0017] Figure 4 is Figure 1 a schematic A - A sectional view in
[0018] Figure 5 is Figure 1 a schematic A - A sectional view of another structure in
[0019] Figure 6 is a schematic view of the cooperation between the U - shaped steel beam and the rolling shaft in the present utility model;
[0020] Figure 7 is another schematic view of the cooperation between the U - shaped steel beam and the rolling shaft in the present utility model;
[0021] Figure 8 is a third schematic view of the cooperation between the U - shaped steel beam and the rolling shaft in the present utility model;
[0022] In the figure, 1. L - shaped fork body, 2. hanging rack, 3. gantry, 4. lifting chain, 5. lifting oil cylinder, 6. oil cylinder fixed seat, 7. disc seat, 8. tire, 9. upper support seat, 10. first support oil cylinder, 11. lower support seat, 12. second support oil cylinder, 13. fixing bolt, 14. fixing plate, 15. U - shaped steel beam, 16. transverse movement oil cylinder, 17. tire half - shaft, 18. oil cylinder support shaft, 19. coupler, 20. guide rail, 21. sprocket, 22. chain fixed seat, 23. fixed bracket, 24. nylon wear - resistant block, 25. rolling shaft, 26. bearing, 27. bearing, 28. limit plate;
[0023] 2 - 1. slider; 3 - 1. trapezoidal guide steel beam, 3 - 2. reinforcement plate, 3 - 3. T - shaped guide steel beam Detailed Embodiment
[0024] The present utility model will be further described below by non - limiting embodiments in conjunction with the accompanying drawings:
[0025] As shown in the attached drawings, a self-loading and unloading transfer vehicle includes a vehicle chassis, a lifting device, a transverse movement oil cylinder 16, and a support mechanism. The vehicle chassis is a prior art. A disc seat 7 is provided on the vehicle chassis. The disc seat 7 is connected to the axle and tires through devices such as leaf springs, air springs, or mounts (i.e., coupler 19). Two parallel U-shaped steel beams 15 are provided on the disc seat 7, and the U-shaped grooves of the two U-shaped steel beams 15 are arranged oppositely. The lifting device includes a gantry 3, a hanging rack 2, a lifting oil cylinder 5, and two lifting chains 4. The gantry 3 is vertically arranged. Two sprockets 21 are provided at the upper part of the gantry 3. The two lower ends of the gantry 3 are respectively movably matched with the U-shaped grooves of the two U-shaped steel beams 15. The hanging rack 2 is slidably arranged on the front side of the gantry 3 through a guide rail 20, and an L-shaped fork body 1 is provided on the hanging rack 2. An oil cylinder fixing seat 6 is fixed at the top of the gantry 3. The piston rod end of the lifting oil cylinder 5 is connected to the oil cylinder fixing seat 6. Oil cylinder support shafts 18 are symmetrically arranged on both sides of the cylinder barrel of the lifting oil cylinder 5, and the two oil cylinder support shafts 18 are respectively slidably matched with the chutes arranged along the height direction on the inner sides of the two door columns of the gantry 3. One end of each of the two lifting chains 4 is connected to the hanging rack 2, and the other end passes around the sprocket 21 at the upper part of the gantry 3 and is then connected to the cylinder body of the lifting oil cylinder 5 through a fixing bracket 23. The fixing bracket 23 is fixed on the cylinder body of the lifting oil cylinder 5. Chain fixing seats 22 are respectively fixedly connected to the end parts of the two lifting chains 4, and the two lifting chains 4 are respectively connected to the two ends of the fixing bracket 23 through the chain fixing seats 22 at their ends. One end of the transverse movement oil cylinder 16 is connected to the rear end of the disc seat 7, and the other end of the transverse movement oil cylinder 16 is connected to the gantry 3. The gantry 3 can be pushed to move along the U-shaped grooves of the two U-shaped steel beams 15 through the transverse movement oil cylinder 16, so as to realize the forward and backward movement of the lifting device. The support mechanism is arranged at the front end of the disc seat 7. The support mechanism includes a first support oil cylinder 10 and a second support oil cylinder 12. Upper support seats 9 are connected to the upper ends of the first support oil cylinder 10 and the second support oil cylinder 12, and lower support seats 11 are connected to the lower ends of the first support oil cylinder 10 and the second support oil cylinder 12. The upper ends of the first support oil cylinder 10 and the second support oil cylinder 12 are respectively fixedly connected to the fixing plates 14 fixed on the sides of the two U-shaped steel beams 15 through bolts 13. When the first support oil cylinder 10 and the second support oil cylinder 12 act, the lower support seats 11 at their lower ends can be driven to support on the ground.
[0026] In the present utility model, the hanging rack 2 is slidably arranged on the front side of the gantry 3 through the guide rail 20, and the hanging rack 2 can move up and down along the guide rail 20. The matching structural form between the hanging rack 2 and the guide rail 20 on the gantry 3 can adopt various matching structures in the prior art. To ensure the reliable connection between the hanging rack 2 and the gantry 3 and prevent the hanging rack 2 from separating from the gantry 3 when loading and unloading heavy objects, the matching structure between the hanging rack 2 and the gantry 3 in the present utility model can adopt as shown in the attached Figure 4The structure shown: That is, both of the two portal columns of the portal frame 3 are composed of a reinforcing plate 3-2 and a guiding steel beam 3-1 arranged on the front side of the reinforcing plate 3-2. The reinforcing plate 3-2 and the guiding steel beam 3-1 are fixedly connected. The cross-section of the mating part on the front side of the guiding steel beam 3-1 is trapezoidal. A slider 2-1 with a trapezoidal groove is correspondingly arranged on the hanging bracket 2. The slider 2-1 is fixedly connected with the hanging bracket 2. The hanging bracket 2 is slidably mated with the trapezoidal guiding steel beam 3-1 on the portal frame 3 through its slider 2-1. The cooperation between the trapezoidal groove and the trapezoidal guiding steel beam 3-1 of the mating part can prevent the hanging bracket 2 from detaching from the portal frame 3. To ensure the reliable sliding of the hanging bracket 2, a nylon wear-resistant block 24 is arranged at the mating surface between the guiding steel beam 3-1 and the slider 2-1. Chute grooves are arranged on the inner sides of the fixing plates 3-2 of the two portal columns of the portal frame 3. The two cylinder support shafts 18 of the lifting cylinder 5 are respectively slidably mated with the chute grooves on the inner sides of the two fixing plates 3-2.
[0027] The mating structure between the hanging bracket 2 and the portal frame 3 in the present utility model can also adopt the structure as shown in the attached Figure 5 The structure shown: That is, both of the two portal columns of the portal frame 3 are composed of a reinforcing plate 3-2 and a guiding steel beam 3-3 arranged on the front side of the reinforcing plate 3-2. The reinforcing plate 3-2 and the guiding steel beam 3-3 are fixedly connected. The cross-section of the mating part on the front side of the guiding steel beam 3-3 is T-shaped. A slider 2-1 with a T-shaped groove is correspondingly arranged on the hanging bracket 2. The slider 2-1 is fixedly connected with the hanging bracket 2. The hanging bracket 2 is slidably mated with the trapezoidal guiding steel beam 3-3 on the portal frame 3 through its slider 2-1. The cooperation between the T-shaped groove and the T-shaped guiding steel beam 3-1 of the mating part can prevent the hanging bracket 2 from detaching from the portal frame 3. To ensure the reliable sliding of the hanging bracket 2, a nylon wear-resistant block 24 is arranged at the mating surface between the guiding steel beam 3-3 and the slider 2-1. Chute grooves are arranged on the inner sides of the fixing plates 3-2 of the two portal columns of the portal frame 3. The two cylinder support shafts 18 of the lifting cylinder 5 are respectively slidably mated with the chute grooves on the inner sides of the two fixing plates 3-2.
[0028] In the present utility model, the mating and moving structure between the portal frame 3 and the U-shaped steel beam 15 can adopt various moving structure forms in the prior art. To ensure the reliable movement of the portal frame 3, a moving structure form as shown in the attached Figure 6 can be adopted. That is, a rolling shaft 25 is fixedly connected to the lower end of the portal frame 3. Bearings 26 are respectively installed at both ends of the rolling shaft 25. Both ends of the rolling shaft 25 are respectively mated with the U-shaped grooves of two U-shaped steel beams 15 through the bearings 26. The transverse movement cylinder 16 is connected with the rolling shaft 25. By pushing the rolling shaft 25 to move along the U-shaped groove of the U-shaped steel beam 15 through the transverse movement cylinder 16, the portal frame 3 is driven to move synchronously. The number of the transverse movement cylinders 16 can be one or two. To ensure the safety of the movement of the portal frame, it is preferred that the open end of the U-shaped groove of the U-shaped steel beam 15 is of an inwardly buckled structure, which can prevent the bearing from slipping out of the U-shaped groove of the U-shaped steel beam 15.
[0029] The mating and moving structure of the gantry 3 and the U-shaped steel beam 15 can also adopt the structure as shown in the appendix Figure 8 That is, a rotatable rolling shaft 25 is connected to the lower end of the gantry 3. The gantry 3 and the rolling shaft 25 are rotatably connected. At this time, an anti-rotation structure for preventing the gantry from rotating should be provided on the gantry 3. Both ends of the rolling shaft 25 are slidably matched with the U-shaped grooves of the two U-shaped steel beams 15. A bearing 27 is arranged in the middle of the rolling shaft 25. The transverse movement oil cylinder 16 is connected to the bearing seat of the bearing 27 on the rolling shaft 25. The transverse movement oil cylinder 16 is used to push the rolling shaft 25 to move along the U-shaped groove of the U-shaped steel beam 15, thereby driving the gantry 3 to move synchronously.
[0030] To ensure the safety of the gantry movement, a limit plate 28 can be arranged at the end of the U-shaped steel beam 15.
[0031] In the present utility model, the transverse movement oil cylinder and the lifting oil cylinder can adopt double-acting three-stage oil cylinders, and the first support oil cylinder 10 and the second support oil cylinder 12 can adopt two-stage oil cylinders. The hydraulic control system of the oil cylinders adopts the prior art.
[0032] When the present utility model is in use, the lifting oil cylinder 5 acts to drive the lifting chain 4 to move. Under the transmission of the sprocket and chain, the hanging rack 2 and the L-shaped fork body 1 are driven to lift and lower, and the heavy object is lifted and lowered along with the L-shaped fork body 1. Under the action of the transverse movement oil cylinder 16, the lifting device can move freely back and forth. When loading and unloading heavy objects, to keep the vehicle stable, the lower support seats 11 at the lower ends of the first support oil cylinder 10 and the second support oil cylinder 12 are extended to support on the ground, and a reliable support can be formed. When not in use usually, the lower support seats 11 of the first support oil cylinder 10 and the second support oil cylinder 12 can be retracted. The present utility model has the functions of loading, unloading and transshipment. Usually when only transshipping, the lifting device can be removed or moved to the rear end, and it can be used as a flatbed truck.
[0033] The other parts in this embodiment are all prior art and will not be elaborated here.
Claims
1. A self-loading and unloading transport vehicle, comprising a vehicle chassis, characterized in that: The vehicle chassis is provided with a disc seat, the disc seat is provided with two parallel U-shaped steel beams, the U-shaped grooves of the two U-shaped steel beams are relatively arranged, the lifting and lowering device includes a door frame, a hanging frame, a lifting cylinder, and two lifting chains. The door frame is vertically arranged, and two sprockets are arranged on the upper part of the door frame. The two sides of the lower end of the door frame are movably matched with the U-shaped grooves of the two U-shaped steel beams, the hanging frame is slidably arranged on the front side of the door frame, and an L-shaped fork body is arranged on the hanging frame. One end of the lifting cylinder is connected to the upper part of the door frame, and the lifting cylinder is connected to the upper part of the door frame. Cylinder support shafts are symmetrically arranged on both sides of the other end, and the two cylinder support shafts are slidably matched with the sliding grooves arranged on the inner sides of the two door columns of the gantry respectively. One end of the two lifting chains is connected to the hanger, and the other end is connected to the movable end of the lifting cylinder after passing through the sprocket on the upper part of the gantry. One end of the transverse cylinder is connected to the rear end of the disc seat, and the other end of the transverse cylinder is connected to the gantry. The supporting mechanism is arranged at the front end of the disc seat, and the supporting mechanism includes two supporting cylinders. The upper ends of the two supporting cylinders are fixedly connected to the two U-shaped steel beams respectively, and the lower ends of the two supporting cylinders are connected to the lower supporting seats.
2. The self-loading and unloading transport vehicle according to claim 1 is characterized in that: Both door columns of the portal frame are provided with guide steel beams with trapezoidal cross-sections at the mating parts, and correspondingly, sliding blocks with trapezoidal grooves are provided on the hanging bracket. The hanging bracket slides with the guide steel beams on the portal frame through its sliding blocks, and nylon wear-resistant blocks are provided on the mating surfaces between the guide steel beams and the sliding blocks.
3. The self-loading and unloading transport vehicle according to claim 1 is characterized in that: Both door columns of the portal frame are provided with guide steel beams with T-shaped cross-sections, and the hanging bracket is correspondingly provided with sliders with T-shaped grooves. The hanging bracket slides with the guide steel beams on the portal frame through its sliders, and nylon wear-resistant blocks are provided on the matching surfaces between the guide steel beams and the sliders.
4. The self-loading and unloading transport vehicle according to claim 1, 2 or 3, characterized in that: A limit plate is provided at the end of the U-shaped steel beam.
5. The self-loading and unloading transport vehicle according to claim 1, 2 or 3, characterized in that: The lower end of the gantry is connected with a rolling shaft, and both ends of the rolling shaft are matched with U-shaped grooves of two U-shaped steel beams through bearings respectively; the transverse cylinder is connected with the rolling shaft.
6. The self-loading and unloading transport vehicle according to claim 5 is characterized in that: The open end of the U-shaped groove of the U-shaped steel beam is an inward buckle structure.
7. The self-loading and unloading transport vehicle according to claim 5 is characterized in that: There are two transverse oil cylinders.
8. The self-loading and unloading transport vehicle according to claim 1, 2 or 3, characterized in that: A rotatable rolling shaft is connected to the lower end of the gantry, and both ends of the rolling shaft are slidably matched with the U-shaped grooves of the two U-shaped steel beams. A bearing is arranged in the middle of the rolling shaft, and the transverse oil cylinder is connected to the bearing seat of the bearing on the rolling shaft.