Pit-free feeding trolley
By designing a pit-free loading truck, using a hoisting structure and hydraulic motor drive of the combination of inner fork frame and outer fork frame, the problem that existing loading trucks need to dig deep into the foundations, and efficient loading on the foundations of different factory buildings is achieved.
Patent Information
- Application Number
- CN202422386920.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing loading truck needs to dig deep into the foundation and install the walking tunnel, which cannot adapt to the foundation problems and usage habits of some customers.
A pit-free feeding car is designed, using the bottom walking mechanism, the cylinder lifting mechanism and the roller coiling mechanism, and the inner fork frame and the outer fork frame are combined into a parallelogram lifting structure, and the table top lifting and steel coil centering are achieved by using oil cylinder drive, and the steel coil is driven to rotate and complete the loading.
It realizes that the walking tunnel is installed without deep digging the foundation, adapts to different factory foundations and usage habits, and improves the loading efficiency and flexibility.
Smart Images

Figure CN223149854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical equipment, in particular to a pitless loading trolley. Background Technique
[0002] The output shaft of the hydraulic motor is connected to the rotating shaft of the coiling device. When the hydraulic motor rotates, torque is transmitted to the coiling device through the output shaft, and the coiling device then drives the steel coil to rotate, thereby realizing the coiling operation of the steel coil. In practical applications, a hydraulic motor of a suitable type and specification is usually selected according to factors such as the weight, size of the steel coil, and requirements for coiling speed, etc., to ensure the smooth progress of the coiling work.
[0003] When loading the steel coil, a loading trolley is required for operation: the commonly used loading trolley at present is in the form of four guide columns and one oil cylinder, and a foundation pit for walking needs to be dug deeply. Due to the foundation problems of the factory building and usage habits of some customers, there is a need for a pitless loading trolley that walks on the ground to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a pitless loading trolley to solve the defects mentioned in the above background technique.
[0005] To achieve the above purpose, a pitless loading trolley is provided, including a base. A rail is installed at the bottom of the base. At the same time, wheels are movably installed on the rail, and the wheels are arranged at the bottom of the inner fork. An outer fork is installed on the upper side of the inner fork, and an upper table frame is installed on the surface of the outer fork. A table is fixedly connected to the surface of the upper table frame. At the same time, rollers are movably installed on the table, and a hydraulic motor is installed on the left side of the rollers. A protective cover is screwed and installed outside the hydraulic motor. A motor is installed on the upper left side of the base, and the output shaft of the motor is fixed to a sprocket. At the same time, a passage block is installed on the left side of the motor. The outer fork and the inner fork are movably installed on the surface of the base, and a lifting plate is welded and fixed on the upper left end of the upper table frame.
[0006] Preferably, the inner fork and the outer fork are combined to form a parallelogram lifting structure, and the lifting structure is driven by a first oil cylinder and a second oil cylinder. At the same time, the first oil cylinder is fixed to the transmission shaft of the inner fork through a fork head.
[0007] Preferably, the inner fork and the outer fork are jointly connected by a central main shaft, and the driving rod of the oil cylinder extends to drive the inner fork to rotate and rise, and at the same time, the inner fork drives the outer fork to move synchronously.
[0008] Preferably, the upper table frame is arranged parallel to the base, and the upper table frame is driven to lift on the base through the inner fork, the outer fork, the second oil cylinder and the first oil cylinder.
[0009] Preferably, dead stops are installed on both sides of the surface of the rail, and the movement stroke of the base of the walking trolley on the surface of the rail is limited by two groups of dead stops. The end of the base on the surface of the rail is driven to move horizontally through a drag chain.
[0010] Preferably, the wheels are installed at the end of the drive box, and the drive box is installed at the bottom of the walking trolley. At the same time, a drive motor is installed inside the drive box, and the drive motor drives the drive wheels of the wheels to rotate through two groups of drive wheels.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The second oil cylinder and the first oil cylinder extend the driving rod, so that the steel coil on the table rises to be centered with the center of the uncoiler. The drive motor drives the trolley forward again to lift the steel coil onto the reel of the uncoiler; the hydraulic motor drives the steel coil to rotate to the plate head centering and feeding device to complete the feeding action; it replaces the commonly used feeding trolley form of four guide columns and one oil cylinder at present, and does not require deep excavation of the foundation to install the walking tunnel, which is suitable for some customers due to factory foundation problems and usage habits. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a front view schematic diagram of the structure of the present utility model;
[0013] Figure 2 is Figure 1 a schematic diagram of raising the table surface on;
[0014] Figure 3 It is a schematic diagram of the wheel and its connection structure.
[0015] Reference numerals in the figure: 1. Drag chain; 2. Dead stop; 3. Passage block; 4. Outer fork frame; 5. Inner fork frame; 6. Upper table frame; 7. Hydraulic motor; 8. Roller; 9. Table surface; 10. Sprocket; 11. Motor; 12. Second oil cylinder; 13. Lifting plate; 14. Protective cover; 15. First oil cylinder; 16. Base; 17. Wheel; 171. Drive box; 172. Drive motor; 18. Rail. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0017] Please refer to Figures 1-3, the present utility model provides a pitless loading trolley, which includes a base 16. A rail 18 is installed at the bottom of the base 16. Meanwhile, wheels 17 are movably installed on the rail 18, and the wheels 17 are arranged at the bottom of the inner fork 5. An outer fork 4 is installed on the upper side of the inner fork 5, and a tabletop frame 6 is installed on the surface of the outer fork 4. A tabletop 9 is fixedly connected to the surface of the tabletop frame 6. Meanwhile, rollers 8 are movably installed on the tabletop 9, and a hydraulic motor 7 is installed on the left side of the rollers 8. A shield 14 is screwed and installed outside the hydraulic motor 7. An electric motor 11 is installed on the upper left side of the base 16, and the output shaft of the electric motor 11 is fixed to a sprocket 10. Meanwhile, a passage block 3 is installed on the left side of the electric motor 11. The outer fork 4 and the inner fork 5 are movably installed on the surface of the base 16. A lifting plate 13 is welded and fixed to the upper left end of the tabletop frame 6.
[0018] Working principle: This equipment is mainly composed of a bottom walking mechanism, an oil cylinder lifting mechanism, and a roller winding and unwinding mechanism. The bottom walking mechanism includes a base 16, wheels 17, an electric motor 11, a transmission shaft, a first sprocket, a second sprocket, a chain, and two sets of dead stops 2. The oil cylinder lifting mechanism includes an outer fork 4, an inner fork 5, a first oil cylinder 15, a second oil cylinder 12, and a tabletop frame 6. The roller winding and unwinding mechanism includes a hydraulic motor 7, rollers 8, a tabletop 9, and a shield 14.
[0019] The working mode of the bottom walking mechanism is as follows: The electric motor 11 drives the sprocket 10 to rotate, driving the wheels 17 on the transmission shaft to rotate. The rail 18 serves as a movement guide to realize the walking of the trolley from the storage station to the uncoiler station. The setting of the two sets of dead stops 2 is used to limit the extreme positions of the trolley's walking.
[0020] The working mode of the oil cylinder lifting mechanism is as follows: The oil cylinder is fixed to the transmission shaft of the inner fork 5 through a fork head. The inner fork 5 and the outer fork 4 are jointly connected through a central main shaft. The oil cylinder extends to drive the inner fork 5 to rotate and rise, and the inner fork 5 drives the outer fork 4 to move synchronously, completing the rise or fall of the overall platform. The overall platform is the tabletop 9 and the tabletop frame 6.
[0021] The working mode of the roller winding and unwinding mechanism is as follows: The hydraulic motor 7 drives the rollers 8 to rotate, completing the forward and reverse unwinding of the steel coil on the trolley. The smooth torque generated by the hydraulic motor 7 can adapt to steel coils of various weights and can realize the forward and reverse winding of the steel coil.
[0022] After the steel coil is placed on the roller 8, the driving motor 172 drives the wheels 17 to move to the loading station. The second oil cylinder 12 and the first oil cylinder 15 extend the driving rods, causing the steel coil on the table 9 to rise until it is centered with the center of the uncoiler. The driving motor 172 then drives the trolley forward again to load the steel coil onto the uncoiler mandrel. The hydraulic motor 7 drives the steel coil to rotate to the plate head centering and feeding device, completing the loading operation. This replaces the commonly used loading trolley form with four guide columns and one oil cylinder, eliminating the need to dig deep foundations for installing the walking tunnel, and is suitable for some customers due to factory foundation problems and usage habits.
[0023] As a preferred embodiment, the inner fork frame 5 and the outer fork frame 4 are combined to form a parallelogram lifting structure, and the lifting structure is driven by the first oil cylinder 15 and the second oil cylinder 12. At the same time, the first oil cylinder 15 is fixed to the transmission shaft of the inner fork frame 5 through a fork head.
[0024] The inner fork frame 5 and the outer fork frame 4 are jointly connected through a central main shaft. The oil cylinder extends the driving rod to drive the inner fork frame 5 to rotate and rise, and at the same time, the inner fork frame 5 drives the outer fork frame 4 to move synchronously.
[0025] As a preferred embodiment, the upper table frame 6 is arranged parallel to the base 16, and the upper table frame 6 is driven to lift above the base 16 through the inner fork frame 5, the outer fork frame 4, the second oil cylinder 12, and the first oil cylinder 15.
[0026] As a preferred embodiment, dead stops 2 are installed on both sides of the surface of the rail 18, and the movement stroke of the base 16 of the walking trolley on the surface of the rail 18 is limited by two groups of dead stops 2. The end of the base 16 on the surface of the rail 18 is driven to move horizontally by a drag chain 1.
[0027] The wheels 17 are installed at the end of the drive box 171, and the drive box 171 is installed at the bottom of the walking trolley. At the same time, a driving motor 172 is installed inside the drive box 171, and the driving motor 172 drives the drive wheels of the wheels 17 to rotate through two groups of drive wheels.
[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pitless loading trolley, comprising a base (16), characterized in that: A rail (18) is installed at the bottom of the base (16). Meanwhile, a wheel (17) is movably installed on the rail (18), and the wheel (17) is arranged at the bottom of the inner fork (5). An outer fork (4) is installed on the upper side of the inner fork (5). A tabletop frame (6) is installed on the surface of the outer fork (4). A tabletop (9) is fixedly connected to the surface of the tabletop frame (6). Meanwhile, a roller (8) is movably installed on the tabletop (9). A hydraulic motor (7) is installed on the left side of the roller (8). A shield (14) is screwed and installed on the outside of the hydraulic motor (7). A motor (11) is installed on the upper left side of the base (16). The output shaft of the motor (11) is fixed to a sprocket (10). Meanwhile, a passage block (3) is installed on the left side of the motor (11). The outer fork (4) and the inner fork (5) are movably installed on the surface of the base (16). A lifting plate (13) is welded and fixed to the upper left end of the tabletop frame (6).
2. The pitless loading trolley according to claim 1, wherein: The inner fork (5) and the outer fork (4) are combined to form a parallelogram lifting structure, and the lifting structure is driven by a first oil cylinder (15) and a second oil cylinder (12). Meanwhile, the first oil cylinder (15) is fixed to the transmission shaft of the inner fork (5) through a fork head.
3. The pothole-free loading trolley according to claim 2, wherein: The inner fork (5) and the outer fork (4) are jointly connected by a central main shaft. The driving rod of the oil cylinder extends to drive the inner fork (5) to rotate and rise. Meanwhile, the inner fork (5) drives the outer fork (4) to move synchronously.
4. The pitless loading trolley according to claim 1, characterized in that: The tabletop frame (6) is arranged parallel to the base (16), and the tabletop frame (6) is driven to lift above the base (16) through the inner fork (5), the outer fork (4), the second oil cylinder (12) and the first oil cylinder (15).
5. The pothole-free loading trolley according to claim 1, wherein: Dead stops (2) are installed on both sides of the surface of the rail (18). The movement stroke of the base (16) of the walking trolley on the surface of the rail (18) is limited by two groups of dead stops (2). The end of the base (16) on the surface of the rail (18) is driven to move horizontally by a drag chain (1).
6. The pothole-free loading trolley according to claim 1, wherein: The wheel (17) is installed at the end of a drive box (171). The drive box (171) is installed at the bottom of the walking trolley. Meanwhile, a drive motor (172) is installed inside the drive box (171). The drive motor (172) drives the drive wheels of the wheel (17) to rotate through two groups of drive wheels.