Heavy intelligent omnidirectional trackless lifting flatcar

Abstract

The invention discloses a heavy intelligent omnidirectional trackless lifting flatcar which comprises a lifting loading platform, an omnidirectional hydraulic lifting wheel set, a battery box, an electric control box and a rocker remote controller, and the lifting loading platform comprises a frame composed of a plurality of longitudinal beams and a plurality of cross beams and a table top covering the top of the frame. The four corners of the frame are symmetrically provided with four wheel set mounting positions in pairs, each wheel set mounting position is provided with a wheel set mounting seat, each wheel set mounting seat is provided with an omni-directional hydraulic lifting wheel set capable of rotating in the circumferential direction, and a corresponding lifting hydraulic station is mounted in the middle of the lower portion of the frame; the electric control box and the battery box are installed at the positions, close to the two sides, of the middle of the lower portion of the vehicle frame, the electric control box and the battery box are both electrically connected with all the omni-directional hydraulic lifting wheel sets, and a wireless receiving end matched with the rocker remote controller is installed in the electric control box. By means of the mode, various actions can be accurately completed under the high-load transportation requirement.

Description

Technical Field

[0001] The invention relates to the field of transportation tools, and in particular to a heavy-duty intelligent omnidirectional trackless lifting flat car. Background Art

[0002] Conventional steel wheel flat cars have large load capacity and stable operation. They are commonly used as material flow carriers in production workshops. However, when using steel wheel flat cars, special tracks need to be laid on the ground in advance, which requires a large investment cost. In addition, the transfer route is relatively simple and can only be operated on the planned route. It is powerless for some complex or unplanned locations. In order to change this limitation of conventional steel wheel flat cars, our company has developed a series of intelligent remote-controlled differential trackless flat cars. This type of differential trackless flat car is not restricted by tracks and is convenient and flexible to use. Its structure generally includes two active wheels and two passive wheels. The two active wheels are connected to differential motors respectively, and the differential motors are used to realize the turning, forward and backward movements of the flat car. Due to the above structural characteristics, if this type of trackless flat car is overloaded in actual use, the passive wheel will be subjected to excessive longitudinal force, which will cause poor rotation and result in failure to move synchronously with the active wheel immediately, resulting in the inability to complete turning, forward and backward movements smoothly, affecting work efficiency. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide an intelligent omnidirectional trackless lifting flat car that can meet the requirement of a load capacity of more than 100 tons.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a heavy-duty intelligent omnidirectional trackless lifting flat car, the heavy-duty intelligent omnidirectional trackless lifting flat car comprises: a lifting load platform, an omnidirectional hydraulic lifting wheel group, a battery box, an electric control box and a rocker remote control, the lifting load platform comprises a frame and a table top, the frame is a rectangular load-bearing frame composed of a plurality of longitudinal beams and a plurality of cross beams, the table top covers the top of the frame, four wheel group mounting positions are symmetrically arranged in pairs at the four corners of the frame, and a wheel group mounting seat is arranged on each wheel group mounting position, There are four omnidirectional hydraulic lifting wheels in total, one of which is installed on each wheel assembly mounting seat. Each omnidirectional hydraulic lifting wheel assembly can rotate circumferentially relative to the corresponding wheel assembly mounting seat. A lifting hydraulic station is installed in the middle position under the frame. The four omnidirectional hydraulic lifting wheel assemblies are synchronously connected to the lifting hydraulic station. The electric control box and the battery box are installed in the middle position under the frame near both sides. The electric control box and the battery box are electrically connected to all the omnidirectional hydraulic lifting wheel assemblies. A wireless receiving terminal matching the joystick remote control is installed in the electric control box.

[0005] In a preferred embodiment of the present invention, the omnidirectional hydraulic lifting wheel group includes an oil cylinder, two load-bearing wheels and two load-bearing wheel drive mechanisms; the top rod end of the oil cylinder is inserted into the wheel group mounting seat and can rotate relative to the wheel group mounting seat, two load-bearing wheel axles are symmetrically arranged on both sides of the oil cylinder body, and a load-bearing wheel is installed on each load-bearing wheel axle. The two load-bearing wheel drive mechanisms are installed on the other two sides of the cylinder body, rotationally symmetrical about the center line of the oil cylinder, and are independently connected to the corresponding load-bearing wheel axles, and the two load-bearing wheel drive mechanisms are electrically connected to the electric control box. The cross-section of the oil cylinder body is square, and the two load-bearing wheels and the two load-bearing wheel drive mechanisms are respectively arranged on one side of the oil cylinder body. The distance between the bottom surface of the oil cylinder and the ground is 80mm to 120mm. The load-bearing wheel driving mechanism includes a reduction motor, a motor bracket and a motor encoder. The motor bracket is fixed on the cylinder body, and the reduction motor is fixed on the motor bracket. The power output end of the reduction motor is connected to the corresponding load-bearing wheel axle through a chain belt. The motor encoder is installed on the side of the frame where the corresponding wheel group installation position is located, and the motor encoder is connected to the electric control box signal.

[0006] In a preferred embodiment of the present invention, the maximum design lifting range of the lifting load platform is 50mm to 150mm.

[0007] In a preferred embodiment of the present invention, a hydraulic locating pin is provided on each wheel assembly mounting position, each hydraulic locating pin is installed on the outside of the wheel assembly mounting seat, and the four hydraulic locating pins are simultaneously connected to a directional hydraulic station, the directional hydraulic station is electrically connected to the electrical control box, and the directional hydraulic station is installed in the middle position of the back of the frame.

[0008] In a preferred embodiment of the present invention, a panel is provided around the vehicle frame, and the bottom of the panel exceeds the lowest point of the electric control box and the battery box.

[0009] In a preferred embodiment of the present invention, anti-collision radars are installed in the middle of both ends of the frame, and an alarm is installed on the anti-collision radars.

[0010] In a preferred embodiment of the present invention, emergency stop buttons are installed near the ends on both sides of the frame.

[0011] The beneficial effects of the present invention are as follows: the present invention is an improvement over existing products, in which the lifting load platform of the flat car is installed on four independent omnidirectional hydraulic lifting wheel groups, and each omnidirectional hydraulic lifting wheel group can independently move according to the command of the electric control box, so that when the load of the lifting load platform is large, each omnidirectional hydraulic lifting wheel group can automatically adjust the angle according to the command to meet the requirements of performing the corresponding action, thereby avoiding the influence of excessive longitudinal pressure on the wheel angle, and can accurately complete straight-moving, forward, backward, left turn, right turn, 90° direction and oblique forward and reverse translation and 360° forward and reverse rotation in situ under a load of up to 150 tons. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a side view structural schematic diagram of a preferred embodiment of the present invention;

[0013] Figure 2 is a schematic diagram of the top view of the structure of the embodiment shown with the table removed;

[0014] The markings of the components in the accompanying drawings are as follows:

[0015] 1. Frame, 2. Table, 3. Enclosure, 4. Battery box, 5. Electric control box, 6. Emergency stop button, 7. Anti-collision radar, 8.

[0016] Oil cylinder, 9. Load-bearing wheel shaft, 10. Motor bracket, 11. Load-bearing wheel, 12. Speed ​​reducer motor, 13. Chain belt, 14.

[0017] Wheel assembly mounting seat, 15. Hydraulic positioning pin, 16. Push rod, 17. Encoder, 18. Lifting hydraulic station, 19. Directional hydraulic station. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figure 1 and Figure 2 , the embodiment of the present invention includes:

[0020] A heavy-duty intelligent omnidirectional trackless lifting flat car, the heavy-duty intelligent omnidirectional trackless lifting flat car includes: a lifting load platform, an omnidirectional hydraulic lifting wheel group, a battery box 4, an electric control box 5 and a rocker remote control, the lifting load platform includes a frame 1 and a table 2, the frame 1 is a rectangular load-bearing frame composed of multiple longitudinal beams and multiple cross beams, the table 2 covers the top of the frame 1, an anti-collision radar 7 is installed in the middle of both ends of the frame 1, an alarm is installed on the anti-collision radar 7, emergency stop buttons 6 are installed on both sides of the frame 1 near the end, four wheel group installation positions are symmetrically arranged in pairs at the four corners of the frame 1 relying on the intersection of the cross beam and the longitudinal beam, each A wheel assembly mounting seat 14 is arranged on the wheel assembly mounting position. There are four omnidirectional hydraulic lifting wheels, one of which is installed on each wheel assembly mounting seat 14. Each omnidirectional hydraulic lifting wheel assembly can rotate circumferentially relative to the wheel assembly mounting seat 14. A lifting hydraulic station 18 is installed in the middle position below the frame 1. The four omnidirectional hydraulic lifting wheel assemblies are synchronously connected to the lifting hydraulic station 18. The electric control box 5 and the battery box 4 are respectively installed in the middle position near the two sides below the frame 1. The electric control box 5 and the battery box 4 are electrically connected to all omnidirectional hydraulic lifting wheel assemblies. A wireless receiving end matching the joystick remote control is installed in the electric control box 5. In this way, the joystick remote control can directly send instructions to the electric control box 5 to control the action of the omnidirectional hydraulic lifting wheel assembly.

[0021] The omnidirectional hydraulic lifting wheel group includes an oil cylinder 8, two load-bearing wheels 11 and two load-bearing wheel driving mechanisms; the cross section of the cylinder body of the oil cylinder 8 is square. The end of the push rod 16 of the oil cylinder 8 is inserted into the wheel group mounting seat 14 and can rotate relative to the wheel group mounting seat 14. Two load-bearing wheel axles 9 are symmetrically arranged on two opposite sides of the cylinder body of the oil cylinder 8, and each load-bearing wheel axle 11 is fitted with a load-bearing wheel 11. The two load-bearing wheel driving mechanisms are rotationally symmetrically installed on the other two sides of the cylinder body about the center line of the oil cylinder 7, and are independently connected to the corresponding load-bearing wheel axles 9, respectively, and can drive the corresponding load-bearing wheels 11 to rotate through the load-bearing wheel axles 9. The load-bearing wheel driving mechanism includes a reduction motor 12, a motor bracket 10 and a motor encoder 17. The motor bracket 10 is fixed on the cylinder body of the oil cylinder 7, and the reduction motor 12 is fixed on the motor bracket 10. The power output end of the reduction motor 12 is connected to the corresponding load-bearing wheel axle 9 through a chain belt 13. The motor encoder 17 is installed on the side of the frame 1 where the corresponding wheel group installation position is located. The motor encoder 17 is connected to the electric control box 5 by signal, and the reduction motor 12 is electrically connected to the battery box 4. In this way, during actual driving, the joystick remote control sends the control signal to the electric control box 5 through the wireless receiving end, and the electric control box 5 controls the oil cylinder 8 and the load-bearing wheel 11 according to the command signal. Since each reduction motor 12 has an independent motor encoder 17, the two load-bearing wheels 11 on both sides of the oil cylinder 8 can be controlled to do motionless actions at the same time. In this way, in actual operation, by controlling the speed difference of the load-bearing wheels 11 on both sides, the load-bearing wheels 11 on both sides can be made to rotate around the cylinder body of the oil cylinder 8 to achieve flat turning or oblique and backward movements, and by controlling the lifting hydraulic station 18, the oil cylinders 8 of the four omnidirectional hydraulic lifting wheel groups can simultaneously lift the frame 1 upward to raise the lifting load platform. The distance between the bottom surface of the oil cylinder 8 and the ground is 80mm to 120mm. The maximum design lifting range of the lifting load platform is 50mm to 150mm. In actual design, the distance between the oil cylinder 8 and the bottom surface is generally 90mm, and the maximum lifting amount of the lifting load platform is 150mm. The reason for this design is to lower the design center of gravity of the vehicle body to ensure the overall stability, thereby improving the load-bearing capacity of the lifting load platform.

[0022] Each wheel assembly installation position is provided with a hydraulic positioning pin 15, each hydraulic positioning pin 15 is installed on the outside of the wheel assembly installation seat 14, and the four hydraulic positioning pins 15 are simultaneously connected to the directional hydraulic station 19 installed in the middle position of the back of the frame 1, and the directional hydraulic station 19 is electrically connected to the electric control box 5. In this way, during the control process, when the omnidirectional hydraulic lifting wheel assembly is in place through differential rotation, the directional hydraulic station 19 can control the four hydraulic positioning pins 19 to act simultaneously, clamp the wheel assembly installation seat, fix the angle of the load-bearing wheel 11, and complete the corresponding action according to the instruction, and will not slide due to excessive force during the process, causing the action to be deformed.

[0023] A panel 3 is also provided around the frame 1, and the bottom of the panel 3 exceeds the lowest point of the electric control box 5 and the battery box 4. The panel 3 can prevent external objects from colliding with the device under the frame 1 when the flat car moves, and the panel 3 can indicate the bottom position of the electric control box 5 and the battery box 4 to prevent protrusions in the path from hitting the electric control box 5 or the battery box 4 and causing accidents.

[0024] The present invention is a further improvement on the existing electric intelligent flat car. By modifying the wheel drive structure, each load-bearing wheel 11 in the omnidirectional hydraulic lifting wheel group can be independently controlled, so that the two load-bearing wheels 11 in the same omnidirectional hydraulic lifting wheel group can be differentially rotated to drive the overall rotation of the omnidirectional hydraulic lifting wheel group. Since the load-bearing wheels 11 are symmetrically positioned and have good stability after being subjected to force, under a high load state of up to 150T, it can still stably and reliably automatically complete corresponding actions such as straight travel, forward, backward, left turn, right turn, 90° direction and oblique (M-shaped) forward and reverse translation and 360° forward and reverse rotation in situ according to the instructions sent by the remote control to the electric control box, and the entire lifting load-bearing platform can be lifted to a height of 150mm.

[0025] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heavy-duty intelligent omnidirectional trackless lifting flat car, characterized in that: The heavy-duty intelligent omnidirectional trackless lifting flat car includes: a lifting load platform, an omnidirectional hydraulic lifting wheel group, a battery box, an electric control box and a rocker remote control. The lifting load platform includes a frame and a table top. The frame is a rectangular load-bearing frame composed of multiple longitudinal beams and multiple cross beams. The table top covers the top of the frame. Four wheel group mounting positions are symmetrically arranged in pairs at the four corners of the frame, and a wheel group mounting seat is arranged on each wheel group mounting position. There are four omnidirectional hydraulic lifting wheels, one of which is installed on each wheel group mounting seat. Each omnidirectional hydraulic lifting wheel group can rotate circumferentially relative to the corresponding wheel group mounting seat. A lifting hydraulic station is installed in the middle position under the frame. The four omnidirectional hydraulic lifting wheel groups are synchronously connected to the lifting hydraulic station. The electric control box and the battery box are installed in the middle position under the frame near the two sides. The electric control box and the battery box are electrically connected to all omnidirectional hydraulic lifting wheel groups. A wireless receiving end matching the rocker remote control is installed in the electric control box.

2. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: The omnidirectional hydraulic lifting wheel group includes an oil cylinder, two load-bearing wheels and two load-bearing wheel driving mechanisms; the top rod end of the oil cylinder is inserted into the wheel group mounting seat and can rotate relative to the wheel group mounting seat, two load-bearing wheel axles are symmetrically arranged on both sides of the oil cylinder body, and a load-bearing wheel is installed on each load-bearing wheel axle. The two load-bearing wheel driving mechanisms are installed on the other two sides of the cylinder body, rotationally symmetrical about the center line of the oil cylinder, and are independently connected to the corresponding load-bearing wheel axles respectively. The two load-bearing wheel driving mechanisms are electrically connected to the electric control box.

3. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 2 is characterized in that: The cross section of the oil cylinder body is square, and two load-bearing wheels and two load-bearing wheel driving mechanisms are respectively arranged on one side of the oil cylinder body.

4. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 2 is characterized in that: The distance between the bottom surface of the oil cylinder and the ground is 80 mm to 120 mm.

5. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 2 is characterized in that: The load-bearing wheel driving mechanism includes a reduction motor, a motor bracket and a motor encoder. The motor bracket is fixed on the cylinder body, and the reduction motor is fixed on the motor bracket. The power output end of the reduction motor is connected to the corresponding load-bearing wheel axle through a chain belt. The motor encoder is installed on the side of the frame where the corresponding wheel group installation position is located, and the motor encoder is connected to the electric control box signal.

6. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: The maximum design lifting range of the lifting load platform is 50mm to 150mm.

7. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: A hydraulic locating pin is provided on each wheel assembly mounting position, and each hydraulic locating pin is installed on the outside of the wheel assembly mounting seat. The four hydraulic locating pins are simultaneously connected to a directional hydraulic station, and the directional hydraulic station is electrically connected to the electrical control box. The directional hydraulic station is installed in the middle position of the back of the frame.

8. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: A panel is also provided around the frame, and the bottom of the panel exceeds the lowest point of the electric control box and the battery box.

9. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: Anti-collision radars are installed in the middle of both ends of the frame, and an alarm is installed on the anti-collision radars.

10. The heavy-duty intelligent omnidirectional trackless lift flat car according to claim 1 is characterized in that: Emergency stop buttons are installed near the ends on both sides of the frame.

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