Forklift steering control device

Abstract

The invention discloses a forklift steering control device, and relates to the technical field of forklift steering control, the forklift steering control device comprises a steering assembly, a driving module is installed below the steering assembly, a steering control mechanism is arranged below the driving module, and the steering control mechanism is used for flexible steering and automatically adapting to uneven road surfaces and steering impact. The steering assembly comprises a steering gear, a steering knuckle and a steering pull rod, the steering pull rod in the steering assembly is kept in rotating connection with the steering crankshaft, and the steering chassis made of a metal framework material is combined with the middle shaft piece made of a rubber material, so that a core frame of the I-shaped steering chassis has an elastic deformation space. According to the flexible joint structure, the middle thin part can be bent and deformed to a certain degree, steering impact is effectively absorbed, and therefore the dynamic response capacity and the steering flexibility of steering are improved, in addition, the flexible joint structure can reduce friction resistance and energy loss during steering, and steering of the forklift is smoother and more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of forklift steering control, and specifically relates to a forklift steering control device. Background Art

[0002] The forklift steering control device is a key part of the forklift control system. It is mainly responsible for controlling the steering action of the forklift. The forklift steering control device adopts a rear-wheel steering design, and flexible steering is achieved by the synchronous deflection of the two rear wheels at the rear. The front wheels are responsible for driving and carrying, so as to accurately control the steering of the forklift and ensure that the forklift can flexibly and stably change the driving direction in different working scenarios.

[0003] In the Chinese patent with the patent publication number CN102991577A, a forklift steering control device is disclosed, which includes a pair of front wheels, a pair of rear wheels and a steering control assembly. The steering control assembly is only connected to one of the front wheels and the rear wheel on the same side as the front wheel. When the forklift needs to turn, rotating the control rod can drive the front rotating assembly to rotate. At the same time, the front rotating assembly drives the rear rotating assembly to rotate through the transmission assembly, so that the first front wheel and the first rear wheel turn at the same time.

[0004] However, the device in the above cited document still has the following defects in actual use: 1. Compared with the device in the above cited document, in the actual use process, since only one front wheel and the rear wheel on the same side are controlled to turn, when making a 180-degree turn or a right-angle turn in a narrow space, it is impossible to achieve a one-time accurate turn, and it is necessary to adjust the direction multiple times, which increases the operation difficulty and time cost. Moreover, this method can only achieve specific steering modes, such as the front wheel and the rear wheel on the same side turning in the same direction or in the opposite direction. When the forklift is in an irregular site or needs to avoid obstacles, it cannot respond flexibly, which limits the mobility of the forklift.

[0005] At the same time, during the turning process, since only one front wheel and the rear wheel on the same side participate in the turning, the lateral force and friction force borne by these two tires are relatively large, while the force on the other side of the tires is relatively small. Long-term use will cause uneven tire wear, affecting the service life and safety of the tires. And during the turning process, due to the change in the center of gravity distribution of the vehicle, the stability of the vehicle will also decrease, especially when the load is heavy, safety accidents such as rollover are likely to occur.

[0006] 2. In addition, compared with the above cited document, through the design of the structure, the front and rear wheels rotate simultaneously. However, the original design intention of the forklift is to flexibly carry goods in a narrow space, and usually the rear wheels are used for steering, and the front wheels are responsible for driving and carrying. However, if the front and rear wheels of the forklift rotate simultaneously, this balance will be broken.

[0007] On the one hand, the steering flexibility will be affected. When the forklift turns, the rear wheels need to deflect to achieve flexible steering. If the front wheels also participate in steering, it will increase the complexity of steering, making the forklift clumsy when turning and difficult to operate flexibly in a narrow space. In addition, the simultaneous rotation of the front and rear wheels will also lead to inconsistent steering angles, further affecting the steering accuracy and stability of the forklift.

[0008] On the other hand, the operation complexity will increase. If the front and rear wheels of the forklift rotate simultaneously, the driver needs to control the steering of the front and rear wheels at the same time, which will increase the operation complexity and improve the operation difficulty. At the same time, this design will also make it more difficult for the forklift to reverse, because the driver needs to more precisely control the steering angles and speeds of the front and rear wheels to avoid collisions or damage to the goods.

[0009] Therefore, in view of this, the present invention proposes a forklift steering control device to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0010] To solve the above technical problems, the present invention provides a forklift steering control device to solve the technical problems raised in the above background technology.

[0011] To achieve the above object, the technical solution adopted by the present invention is: a forklift steering control device, including a steering assembly, a drive module is installed below the steering assembly, and a steering control mechanism is arranged below the drive module. The steering control mechanism is used for flexible steering and automatically adapts to road unevenness and steering impact.

[0012] Further, the steering control mechanism includes a steering chassis installed below the drive module, connecting collar rings are symmetrically installed outside the steering chassis, steering crankshafts are symmetrically installed outside the steering chassis, grooves are symmetrically opened inside the steering chassis, steering connectors are installed inside the grooves, steering wheel sets are installed outside the steering connectors, load-bearing connectors are symmetrically installed at both ends of the steering chassis, and load-bearing wheel sets are installed outside the load-bearing connectors.

[0013] Further, the steering chassis is made of a metal skeleton material, the core frame of the steering chassis is designed in an I shape, the steering chassis is integrally divided into a front longitudinal axis, a rear longitudinal axis and a main transverse axis, and a central shaft member is installed in the middle of the steering chassis. The central shaft member is made of rubber material as a whole. The drive module adopts a modular design and is assembled on the steering chassis frame. Horizontal slots are opened at corresponding positions on the side walls, and limit shafts are installed inside the horizontal slots. The and are slidably connected through the horizontal slots and the limit shafts.

[0014] By adopting the above technical solution, when the forklift turns, the middle detail part can undergo a certain degree of bending deformation, effectively absorbing the steering impact.

[0015] Furthermore, the connecting collar is installed on the outer wall of the main horizontal shaft in the steering chassis. The steering chassis is fixedly connected to the drive module through the connecting collar. The connecting collar is designed as a telescopic structure. The steering crankshaft is installed on the outer wall of the rear longitudinal shaft in the steering chassis. The steering chassis and the steering assembly are rotatably connected through the steering crankshaft.

[0016] Furthermore, rubber bushings are installed on the outer walls of the steering connectors. The steering connectors are movably connected to the rear longitudinal shaft of the steering chassis through the rubber bushings.

[0017] By adopting the above technical solution, due to its viscoelastic properties, the rubber bushing can effectively absorb and disperse the vibrations and impacts from the road surface, thereby reducing the transmission of vibrations to the entire vehicle body.

[0018] Furthermore, one side of the steering connector away from the steering chassis is designed in a Y shape. Limit bins are installed at the ends of the steering connectors away from the steering chassis. The end parts of the steering connectors are slidably connected inside the limit bins. A baffle is installed at the central position inside the limit bins.

[0019] By adopting the above technical solution, the design of the limit bins restricts the excessive movement of the steering connectors, ensuring that the steering system can remain stable during the adjustment process.

[0020] Furthermore, the steering wheel set is installed outside the rear longitudinal shaft in the steering chassis. The load-bearing wheel set is installed outside the front longitudinal shaft in the steering chassis. Arc-shaped blocks are evenly installed on the surface of the load-bearing wheel set.

[0021] By adopting the above technical solution, the middle raised part of the arc-shaped block will deform to form the same horizontal plane with both sides when being squeezed, so as to increase the friction and grip with the ground.

[0022] Furthermore, the load-bearing wheel set adopts a double-layer composite structure. The outer layer is made of high-strength aluminum alloy material for providing good heat dissipation performance. The inner layer is made of cast steel material for ensuring sufficient strength and load-bearing capacity. The two layers of the load-bearing wheel set are fixedly connected through a support disc.

[0023] By adopting the above technical solution, the high-strength aluminum alloy material of the outer layer can conduct heat away, and the cast steel material of the inner layer ensures that the load-bearing wheel set will not be deformed or damaged.

[0024] Furthermore, corner arc shaft groups are evenly installed inside the load-bearing wheel set, and stress rings are fixedly connected to the bending parts of the corner arc shaft groups.

[0025] By adopting the above technical solution, the stress ring fixedly connected to the bent parts of multiple angled arc shaft groups can effectively disperse stress.

[0026] Further, the steering assembly includes a steering gear, a steering knuckle, and a steering tie rod. The steering tie rod in the steering assembly is rotatably connected to the steering crankshaft. The steering tie rod in the steering assembly is used to transmit the steering force to make the steering knuckle and the steering wheel set rotate.

[0027] Further, the drive module includes a drive motor, a motor controller, and a main controller. The drive motor in the drive module is responsible for converting electrical energy into mechanical energy. The controller in the drive module is responsible for adjusting the speed, torque, and direction of the drive motor.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By combining the steering chassis made of a metal skeleton material with the central shaft part made of a rubber material, the I-shaped steering chassis core framework has an elastic deformation space. When the forklift turns, the middle detail part can undergo a certain degree of bending deformation, effectively absorbing the steering impact, thereby improving the dynamic response ability and steering flexibility of the steering. In addition, this flexible joint structure can also reduce the frictional resistance and energy loss during steering, making the forklift steering smoother and more accurate.

[0029] Compared with the prior art, during steering, the thin middle part, that is, the central shaft part, can bend and deform according to the magnitude and direction of the steering force, enabling the forklift to achieve a more flexible steering action, reducing the turning radius, being more convenient to operate in a narrow space, and improving the mobility and controllability of the forklift.

[0030] For the steering wheel sets installed on both sides of the rear longitudinal axis, a rubber bushing is introduced at the connection part. First, due to its viscoelastic properties, the rubber bushing can effectively absorb and disperse the vibrations and impacts from the road surface, thereby reducing the transmission of vibrations to the entire vehicle body. Moreover, the reduction of vibrations means that the collisions and frictions between components will also be correspondingly reduced, effectively reducing the noise generated by vibrations. Second, the rubber bushing has a certain flexibility and deformability, which can ensure that the connection between the steering wheel set and the rear longitudinal axis will not become loose or fail due to minor changes. It can freely expand, contract, and twist within a certain range, always maintaining a stable connection between the steering wheel set and the rear longitudinal axis, ensuring the driving stability and controllability of the forklift.

[0031] The end of the steering connector is designed to be Y-shaped. When the forklift is turning, the Y-shape can provide a wider turning space for the steering wheel group and reduce interference during steering, so that the rear wheel steering of the forklift is more flexible and smooth, and can more accurately realize various steering actions, adapting to the working requirements in narrow spaces and complex working conditions. In addition, this design reduces the pressure on a single connection point by dispersing the steering force, thereby enhancing the stability of the entire steering structure. When the forklift is turning with a heavy load or at high speed, it can effectively prevent the connector from being damaged or deformed due to excessive steering force.

[0032] Among them, a limit bin is introduced at the Y-shaped end of the steering connector. The design of the limit bin limits the excessive movement of the steering connector, ensuring that the steering system can remain stable during the adjustment process and avoiding loss of control due to oversteering. When the steering wheel group rotates to a certain extent, the force of the end will act on the other end to prevent the steering wheel group from swinging or shaking excessively, making the steering process smoother and reducing the risk of tilting and shaking of the forklift when turning.

[0033] (2) Since the drive module is heavy and is slidably connected to the steering chassis frame through a horizontal groove and a limit shaft, the left and right steering drives of the steering assembly can be limited. This design also allows the center of gravity of the vehicle body to naturally move downward. As the cargo rises on the vehicle body, the advantage of the low center of gravity becomes more and more obvious, which can significantly improve the stability of the vehicle during driving and operation and reduce the risk of rollover or overturning.

[0034] Moreover, in traditional vehicle designs, the drive module is often at a certain distance from the steering assembly and chassis frame, which causes force loss during transmission. In this design, the drive module is directly mounted on the steering chassis frame and is close to the steering assembly. This layout makes power transmission more direct and efficient. When the vehicle performs operations such as steering or accelerating, power can be quickly and accurately transmitted to the corresponding actuators, improving the vehicle's response speed and handling performance. At the same time, short-distance transmission can also reduce energy loss and improve the vehicle's energy efficiency performance.

[0035] (3) The arc blocks are evenly installed on the surface of the load-bearing wheel group. When the forklift is carrying heavy objects or driving on uneven and slippery ground, the raised part in the middle of the arc block is squeezed and deformed to form the same horizontal plane as the two sides. This change increases the contact area between the tire and the ground, thereby effectively improving the friction and grip. Greater friction can prevent the wheels from slipping, ensure the stability and safety of the forklift's driving, and avoid accidents such as cargo falling or forklift tipping due to wheel loss of control.

[0036] Among them, for the load-bearing wheel set with a double-layer composite structure, the outer layer made of high-strength aluminum alloy has high thermal conductivity. During the operation of the forklift, it can quickly conduct the heat generated by friction, avoiding the performance degradation or damage due to high temperature inside, and extending the service life of the wheel set. The inner layer made of cast steel, with its excellent strength, ensures that the load-bearing wheel set will not deform or be damaged when bearing a huge cargo weight, ensuring that the forklift can still operate stably under heavy loads. The two layers are fixedly connected through a support disc, further enhancing the structural stability and enabling the entire load-bearing wheel set to work in coordination.

[0037] Among them, the angled arc shaft group evenly installed inside the load-bearing wheel set plays a role in comprehensive support and shock absorption during the driving of the forklift. When the load-bearing wheel set rotates, the angled arc shaft group can absorb energy through its own bending deformation, reducing the impact on the entire load-bearing wheel set and the forklift chassis. The stress rings fixedly connected to the bending parts of multiple angled arc shafts can effectively disperse stress, avoiding component damage caused by stress concentration. When the load-bearing wheel set bears heavy loads or uneven external forces, the stress rings can evenly distribute the stress to each angled arc shaft group, improving the structural strength and reliability of the load-bearing wheel set, and ensuring that the forklift can operate safely and stably under various harsh conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a front view three-dimensional structural schematic diagram of the present invention.

[0039] Figure 2 It is a three-dimensional structural schematic diagram of the steering control mechanism of the present invention.

[0040] Figure 3 It is a three-dimensional structural schematic diagram of the steering chassis of the present invention.

[0041] Figure 4 It is a three-dimensional structural schematic diagram of the steering wheel set of the present invention.

[0042] Figure 5 It is a three-dimensional structural schematic diagram of the rubber bushing of the present invention.

[0043] Figure 6 It is an exploded view of the steering connection part of the present invention.

[0044] Figure 7 It is a three-dimensional structural schematic diagram of the load-bearing wheel set of the present invention.

[0045] Figure 8 It is a three-dimensional structural schematic diagram of the inside of the load-bearing wheel of the present invention.

[0046] Figure 9 It is an exploded view of the internal structure of the load-bearing wheel of the present invention.

[0047] Figure 10This is a schematic three-dimensional structure diagram of the angled arc shaft group of the present invention.

[0048] The reference numerals in the figure are: 1, steering assembly; 11, drive module; 2, steering control mechanism; 21, steering chassis; 22, central shaft member; 23, connecting collar; 24, steering crankshaft; 25, groove; 26, rubber bushing; 27, steering connecting member; 28, limit bin; 29, steering wheel set; 210, load-bearing connecting member; 211, support disc; 212, angled arc shaft group; 213, stress ring; 214, load-bearing wheel set. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0050] It should be noted that the above-mentioned steering assembly, drive module and other devices are all internal structures of forklifts in the prior art, and their structures and working principles belong to the prior art, and will not be elaborated here.

[0051] Embodiment 1: Please refer to Figures 1 to 10 As shown, a forklift steering control device includes a steering assembly 1, a drive module 11 is installed below the steering assembly 1, and a steering control mechanism 2 is arranged below the drive module 11. The steering control mechanism 2 is used for flexible steering and automatically adapts to road surface unevenness and steering impact.

[0052] It should be noted that the steering assembly 1 includes a steering gear, a steering knuckle and a steering tie rod. The steering tie rod in the steering assembly 1 is rotatably connected to the steering crankshaft 24. The steering tie rod in the steering assembly 1 is used to transmit the steering force to make the steering knuckle and the steering wheel set 29 rotate. The drive module 11 includes a drive motor, a motor controller and a main controller. The drive motor in the drive module 11 is responsible for converting electrical energy into mechanical energy, and the controller in the drive module 11 is responsible for adjusting the speed, torque and direction of the drive motor.

[0053] Please refer to Figures 1 to 10 As shown, the steering control mechanism 2 includes a steering chassis 21 installed below the drive module 11. Connecting collars 23 are symmetrically installed outside the steering chassis 21. Steering crankshafts 24 are symmetrically installed outside the steering chassis 21. Grooves 25 are symmetrically opened inside the steering chassis 21. Steering connecting members 27 are installed inside the grooves 25. Steering wheel sets 29 are installed outside the steering connecting members 27. Load-bearing connecting members 210 are symmetrically installed at both ends of the steering chassis 21. Load-bearing wheel sets 214 are installed outside the load-bearing connecting members 210.

[0054] It should be noted that the steering chassis 21 is made of a metal skeleton material. The core frame of the steering chassis 21 is designed in an I-shape. The steering chassis 21 is integrally divided into a front longitudinal axis, a rear longitudinal axis, and a main transverse axis. A central shaft member 22 is installed in the middle of the steering chassis 21. The central shaft member 22 is integrally made of rubber material. The drive module 11 adopts a modular design and is assembled on the frame of the steering chassis 21. Horizontal grooves are provided at positions corresponding to the drive module 11 on the side walls of the drive module 11. Limiting shafts are installed inside the horizontal grooves. The drive module 11 and the steering chassis 21 are slidably connected through the horizontal grooves and the limiting shafts. A connecting collar 23 is installed on the outer wall of the main transverse axis in the steering chassis 21. The steering chassis 21 is fixedly connected to the drive module 11 through the connecting collar 23. The connecting collar 23 is designed as a telescopic structure. A steering crankshaft 24 is installed on the outer wall of the rear longitudinal axis in the steering chassis 21. The steering chassis 21 and the steering assembly 1 are rotatably connected through the steering crankshaft 24. Rubber bushings 26 are installed on the outer walls of the steering connecting members 27. The steering connecting members 27 are movably connected to the rear longitudinal axis of the steering chassis 21 through the rubber bushings 26. The rubber bushings 26 are used to further enhance the shock absorption effect. The sides of the steering connecting members 27 away from the steering chassis 21 are designed in a Y-shape. Limiting bins 28 are installed at the ends of the steering connecting members 27 away from the steering chassis 21. The end parts of the steering connecting members 27 are slidably connected inside the limiting bins 28. A baffle is installed at the central position inside the limiting bins 28.

[0055] Specifically, when a steering force is generated by the steering gear in the steering assembly 1, this steering force will be transmitted to the steering crankshaft 24 through the steering tie rod. At the same time, the steering chassis 21 and the steering assembly 1 are rotatably connected through the steering crankshaft 24. Therefore, the steering force can be smoothly transmitted to the steering chassis 21. The drive motor in the drive module 11 works under the control of the controller, adjusting the speed, torque, and direction of the drive motor, and converting electrical energy into mechanical energy, so as to provide power for the operation of the steering control mechanism 2.

[0056] Since the central shaft member 22 in the middle of the steering chassis 21 is made of rubber material, when the forklift is driving on an uneven road surface or encountering a steering impact, the central shaft member 22 can undergo elastic deformation, absorb vibration and impact energy, enabling the steering chassis 21 to automatically adapt to the road surface conditions, ensuring the smoothness and reliability of steering, and at the same time reducing damage to other components.

[0057] When the steering force is transmitted to the steering connection member 27 through the steering chassis 21, relying on the rubber bushing 26 installed on the outer wall of the steering connection member 27, it not only enhances the shock absorption effect of the force transmission between the structures, but also enables the steering connection member 27 to more flexibly change the direction of the rear longitudinal axis of the steering chassis 21. Since the side of the steering connection member 27 away from the steering chassis 21 is designed in a Y shape, when the steering wheel set 29 is adjusted and rotated, if the adjustment range is too large, the end part of the steering connection member 27 slides in the limit bin 28, and the force at the end will ultimately act on the baffle at the center position inside the limit bin 28, forming a closed loop for steering, restricting the steering angle, and ensuring the stability and safety of steering.

[0058] Embodiment 2: On the basis of Embodiment 1, please refer to Figures 1 to 10 As shown, the steering wheel set 29 is installed outside the rear longitudinal axis in the steering chassis 21, and the load wheel set 214 is installed outside the front longitudinal axis in the steering chassis 21. Arc-shaped blocks are evenly installed on the surface of the load wheel set 214, and the middle convex part of the arc-shaped block will deform to form the same horizontal plane as the two sides when being squeezed, so as to increase the friction and grip with the ground. The load wheel set 214 adopts a double-layer composite structure. The outer layer is made of high-strength aluminum alloy material for providing good heat dissipation performance, and the inner layer is made of cast steel material for ensuring sufficient strength and load-bearing capacity. The two layers of the load wheel set 214 are fixedly connected through the support disc 211. The inner part of the load wheel set 214 is evenly installed with a corner arc shaft group 212, and stress rings 213 are fixedly connected to the bending parts of multiple corner arc shaft groups 212.

[0059] Specifically, the load wheel set 214 is installed outside the front longitudinal axis of the steering chassis 21, responsible for bearing the weight of the forklift and the goods carried, and is an important support component for the stable driving of the forklift.

[0060] When the forklift is driving with a load, especially in situations such as on an uneven road surface, climbing a slope or turning, the middle convex part of the arc-shaped blocks evenly installed on the surface of the load wheel set 214 is squeezed until the arc-shaped blocks deform to form the same horizontal plane as the two sides. Through this deformation, the contact area between the tire and the ground is increased, thereby significantly increasing the friction and grip, and preventing the load wheel set 214 from slipping.

[0061] Moreover, the double-layer composite structure adopted by the load-bearing wheel set 214 takes into account two key performances: heat dissipation and strength bearing. First of all, relying on the good thermal conductivity of the high-strength aluminum alloy material on the outer layer, during the long-term operation of the forklift, heat will be generated due to the friction between the load-bearing wheel set 214 and the ground and the operation of internal components. The aluminum alloy outer layer can quickly conduct this heat out, thereby effectively reducing the temperature, avoiding performance degradation and component damage caused by high temperature, and extending the service life of the load-bearing wheel set 214. Secondly, relying on the cast steel material on the inner layer, with its excellent strength, it provides sufficient load-bearing capacity for the load-bearing wheel set 214, ensuring that it will not deform or be damaged when bearing the huge weight of the forklift and the goods, and ensuring that the forklift can still operate stably under heavy load conditions. In addition, the cooperation between the two layers is fixedly connected through the support plate 211, enhancing the structural stability and enabling the inner and outer layers to work together to cope with various complex working conditions.

[0062] At the same time, for the double-layer composite structure of the load-bearing wheel set 214, a corner arc shaft group 212 is also introduced. The corner arc shaft group 212 can absorb energy through its own bending deformation, reducing the impact on the entire load-bearing wheel set 214 and the forklift chassis. Moreover, the stress ring 213 fixedly connected to the bending part of the corner arc shaft group 212 further enhances the structural strength of the load-bearing wheel set 214. When the load-bearing wheel set 214 bears heavy loads or is subjected to uneven external forces, the stress ring 213 can evenly distribute the stress to each corner arc shaft, avoiding component damage caused by stress concentration, and ensuring that the load-bearing wheel set 214 can operate safely and stably under harsh conditions, providing a reliable guarantee for the normal operation of the forklift.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 forklift steering control device, comprising a steering assembly (1), a driving module (11) being installed below the steering assembly (1), characterized in that: A steering control mechanism (2) is arranged below the driving module (11), and the steering control mechanism (2) is used for flexible steering, automatically adapting to uneven road surfaces and steering impacts; the steering control mechanism (2) comprises a steering chassis (21) mounted below the driving module (11), a connecting collar (23) being symmetrically mounted on the outside of the steering chassis (21), a steering crankshaft (24) being symmetrically mounted on the outside of the steering chassis (21), grooves (25) being symmetrically arranged on the inside of the steering chassis (21), steering connectors (27) being mounted inside the grooves (25), a steering wheel set (29) being mounted outside the steering connector (27), load-bearing connectors (210) being symmetrically mounted on both ends of the steering chassis (21), and a load-bearing wheel set (214) being mounted outside the load-bearing connector (210).

2. A forklift steering control device according to claim 1, characterized in that: The steering chassis (21) is made of a metal frame material. The core frame of the steering chassis (21) is designed in an I-shape. The steering chassis (21) is divided into a front longitudinal axis, a rear longitudinal axis and a main transverse axis. A central axis (22) is installed in the middle of the steering chassis (21). The central axis (22) is made of rubber material. The drive module (11) is modularly designed and assembled on the steering chassis (21) frame. The side walls of the (11) are provided with horizontal grooves at positions corresponding to the (1). The interiors of the horizontal grooves are provided with limit shafts. The (1) and (11) are slidably connected via the horizontal grooves and the limit shafts.

3. A forklift steering control device according to claim 1, characterized in that: The connecting collar (23) is mounted on the outer wall of the main transverse axis in the steering chassis (21); the steering chassis (21) is fixedly connected to the drive module (11) via the connecting collar (23); the connecting collar (23) is designed as a retractable structure; the steering crankshaft (24) is mounted on the outer wall of the rear longitudinal axis in the steering chassis (21); the steering chassis (21) and the steering assembly (1) are rotationally connected via the steering crankshaft (24).

4. A forklift steering control device according to claim 1, characterized in that: The outer wall of the steering connecting member (27) is installed with a rubber bushing (26), and the steering connecting member (27) is movably connected to the rear longitudinal axis of the steering chassis (21) via the rubber bushing (26).

5. A forklift steering control device according to claim 1, characterized in that: The side of the steering connection member (27) away from the steering chassis (21) is designed to be Y-shaped, and the end of the steering connection member (27) away from the steering chassis (21) is installed with a limit bin (28), the end of the steering connection member (27) is slidably connected to the inside of the limit bin (28), and a baffle is installed at the center position of the inside of the limit bin (28).

6. A forklift steering control device according to claim 1, characterized in that: The steering wheel set (29) is mounted outside the rear longitudinal axis of the steering chassis (21), and the load-bearing wheel set (214) is mounted outside the front longitudinal axis of the steering chassis (21). Arc blocks are evenly mounted on the surface of the load-bearing wheel set (214), and the middle raised portion of the arc block will deform to form the same horizontal plane as the two sides when squeezed, so as to increase friction and grip with the ground.

7. A forklift steering control device according to claim 1, characterized in that: The load-bearing wheel assembly (214) adopts a double-layer composite structure, wherein the outer layer is made of a high-strength aluminum alloy material for providing good heat dissipation performance, and the inner layer is made of a cast steel material for ensuring sufficient strength and load-bearing capacity. The two layers of the load-bearing wheel assembly (214) are fixedly connected via a support plate (211).

8. A forklift steering control device according to claim 1, characterized in that: The inside of the load-bearing wheel group (214) is evenly installed with a folded-angle arc shaft group (212), and the bending part of the folded-angle arc shaft group (212) is fixedly connected with a stress ring (213).

9. A forklift steering control device according to claim 1, characterized in that: The steering assembly (1) comprises a steering gear, a steering knuckle and a steering tie rod. The steering tie rod in the steering assembly (1) is rotationally connected to a steering crankshaft (24). The steering tie rod in the steering assembly (1) is used to transmit a steering force to rotate the steering knuckle and the steering wheel assembly (29).

10. A forklift steering control device according to claim 1, characterized in that: The drive module (11) comprises a drive motor, a motor controller and a main controller; the drive motor in the drive module (11) is responsible for converting electrical energy into mechanical energy, and the controller in the drive module (11) is responsible for adjusting the speed, torque and direction of the drive motor.

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