An industrial vehicle with independently designed steering and lifting

Abstract

The present application relates to the field of automatic mechanical equipment, in particular to an industrial vehicle, which is achieved by the following technical scheme: an industrial vehicle with independent design of steering and lifting, comprising a driving wheel, a handle, a main frame and a vehicle leg connected with the main frame, further comprising a sub-frame, the sub-frame being provided with a controller, a battery box, an oil cylinder and a pump station; the handle is connected with the driving wheel, the driving wheel is rotationally connected with the sub-frame; the base of the oil cylinder is connected with the sub-frame, and the output end is connected with the main frame. The purpose of the present application is to provide an industrial vehicle with independent design of steering and lifting, in which the relative lifting and rotating actions of important components are independent during vehicle operation, effectively reducing the wear of components and related wiring harnesses, and prolonging the service life of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic mechanical equipment, in particular to an industrial vehicle. BACKGROUND

[0002] Industrial vehicle refers to the power-driven motor vehicle used to carry, push, pull, lift, stack or store various cargos. Common industrial vehicles include forklifts, side forklifts, towing vehicles, carrying vehicles, stackers and the like.

[0003] Industrial vehicles often contain vehicle body, handle, fork, battery box, oil cylinder, pump station, controller and other components in structure. Industrial vehicles have two actions in work, namely turning and lifting. In the lifting action, the oil cylinder is connected with the vehicle body, and the vehicle body is connected with the fork. When the piston rod in the oil cylinder is pushed out, it drives the vehicle body and the fork to lift. In the turning action, the handle is connected with the drive wheel. When the worker turns the handle, it drives the drive wheel to turn synchronously.

[0004] A small electric carrying vehicle disclosed in Chinese patent document CN201220551277.X contains a main frame, and a fork and a handle are connected to the main frame respectively. The truck box part of the main frame forms a containing space, in which components such as pump station, oil cylinder, controller and the like are installed. However, in actual use, with the turning, lifting and other actions of the industrial vehicle, the pump station, oil cylinder and controller will also move. In the frequent moving process, the connection harnesses between each component and each component are prone to aging and wear, which affects the stability and service life of the carrying vehicle. SUMMARY

[0005] The purpose of the present application is to provide an industrial vehicle with independent design of turning and lifting. In the operation of the vehicle, the important components remain independent relative to the lifting and turning actions, effectively reducing the wear of each component and related harnesses, and improving the service life of the vehicle.

[0006] The above technical purpose of the present application is achieved by the following technical scheme: an industrial vehicle with independent design of turning and lifting, containing a drive wheel, a handle, a main frame and a vehicle leg connected with the main frame, further containing a sub-frame, the sub-frame being installed with a controller, a battery box, an oil cylinder and a pump station;

[0007] The handle is connected with the drive wheel, and the drive wheel is rotationally connected with the sub-frame;

[0008] The base of the oil cylinder is connected with the sub-frame, and the output end is connected with the main frame.

[0009] As a preferred embodiment of the present application, the sub-frame contains a fixed block and a connecting disc below the fixed block, and the controller, the battery box, the oil cylinder and the pump station are connected to the fixed block.

[0010] As the preferred embodiment of the present application, a hinged piece is further included, one end of which is rotatably connected with the connecting plate, and the other end of which is rotatably connected with the main frame or the leg.

[0011] As the preferred embodiment of the present application, the battery box is located above the fixed block.

[0012] As the preferred embodiment of the present application, the controller is installed on one side of the fixed block close to the handle.

[0013] As the preferred embodiment of the present application, a through groove is formed on the lower connecting plate for the wire harness to pass through, and the wire harness is connected with the controller and the driving wheel respectively.

[0014] As the preferred embodiment of the present application, the main frame includes a box, one side of which faces the handle and is provided with a receiving cavity, and the oil cylinder and the pump station are located on the side of the fixed block away from the handle and arranged in the receiving cavity.

[0015] As the preferred embodiment of the present application, the box includes a side expansion part located below and used for connecting with the leg, and a middle collection part located above and used for connecting with the oil cylinder, and the width of the middle collection part is smaller than that of the side expansion part.

[0016] In summary, the present application has the following advantages:

[0017] 1. Regardless of the turning or lifting action of the vehicle, the battery box, the controller, the oil cylinder and the pump station remain relatively stationary with the sub-frame, avoiding the frequent displacement of each component and the wires of the components during the operation of the vehicle, and avoiding the collision and wear during the displacement.

[0018] 2. The box adopts a trapezoidal folding design, which is narrow at the top and wide at the bottom, on the one hand, which is more conducive to the design trend of lightening and miniaturization of industrial vehicles, and on the other hand, which is conducive to the widening of the line of sight and the unobstructed operation of workers, improving the safety of operation.

[0019] 3. The battery box and the controller adopt a new spatial layout, which improves the convenience of workers operating the battery box, and is also conducive to placing large-capacity and large-volume batteries.

[0020] 4. The pump station and the oil cylinder are arranged in the receiving area, which optimizes the force arm during lifting, improves the structural stability of the main frame, and further optimizes the turning radius of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of Example 1;

[0022] Figure 2 is Figure 1 is an enlarged schematic view of the sub-frame.

[0023] In the picture:

[0024] 11. Main frame, 12. Legs, 21. Handle, 22. Drive wheel, 3. Subframe, 31. Fixing block, 32. Lower connecting plate, 4. Controller, 5. Battery box, 6. Hydraulic cylinder, 7. Pump station, 8. Articulated plate. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0027] Example 1: An industrial vehicle, which can be different types of vehicles such as forklifts, stackers, and sorting vehicles. This technical solution takes a forklift as an example. Figure 1 As shown, this type of vehicle can be considered as having three main components. Component A: Figure 1 The handle 21 and drive wheel 22 on the left side are connected. When the worker rotates the handle 21 horizontally, the drive wheel 22 will turn. Component B: The main frame 11 on the right side of the diagram and the connected legs 12. Under the lifting action of the lifting structure, the main frame 11 and legs 12 rise and fall, thereby lifting and lowering the cargo. Component C: The middle part of the diagram includes the sub-frame 3, which connects and installs four major components, such as... Figure 2 As shown, these are the battery box 5, the lifting structure cylinder 6, the pump station 7, and the controller 4.

[0028] With this industrial design, when the vehicle turns, components C and A rotate relative to each other, but the individual components in component C remain relatively stationary, especially the controller 4 and battery box 5, which do not rotate relative to each other. When the vehicle rises or falls, components C and B rise or fall relative to each other, but the individual components in component C remain relatively stationary, with only the piston rod of cylinder 6 moving. With this design, whether the vehicle is turning or rising or falling, the four main components—battery box 5, controller 4, cylinder 6, and pump station 7—remain relatively stationary with respect to the subframe 3, preventing frequent displacement of components and their wiring during vehicle operation and avoiding collisions and wear during this process.

[0029] Further, the spatial layout of various components is optimized in the present case. The main part of the sub-frame 3 is the fixed block 31, and the battery box 5 is arranged directly above the fixed block 31. The battery box 5 is placed in this position for two considerations: first, when the battery is replaced or charged, the worker can operate the battery box 5 more conveniently, avoiding touching and interference when placed in other positions. Second, the space in this position is the most abundant, and a larger battery can be arranged to improve the working endurance of the vehicle.

[0030] The controller 4 is arranged on the front side of the fixed block 31, i.e., close to the handle 21. On the one hand, it avoids the problem of increasing the volume of the outer shell when placed on the side of the fixed block 31. On the other hand, this area is close to the top of the drive wheel 23. The lower connecting disc 32 is below the fixed block 31, and a through groove is opened, so that the wire harness can be directly connected to the drive wheel 23 and the controller 4, the connection distance is short, and the wiring is convenient.

[0031] The main frame 11 includes a vehicle box, and the vehicle box is provided with a containing area, and the pump station 7 and the oil cylinder 6 are arranged on the opposite side of the fixed block 31, i.e., the right side in the figure, and are located in the containing area. Such a spatial layout, on the one hand, reduces the overall length of the vehicle, which optimizes the rotation radius of the vehicle. The smaller the rotation radius, the more suitable it is for the current narrow lane working environment. On the other hand, such a spatial layout shortens the lever arm of the piston rod of the oil cylinder 6 when lifting the main frame 11, and enhances the mechanical stability of the main frame 11, especially the mechanical stability of the upper panel of the main frame 11.

[0032] In the present case, the vehicle box adopts a trapezoidal folding design, which is narrow at the top and wide at the bottom. On the one hand, it is more conducive to the design trend of lightening and miniaturization of industrial vehicles, and on the other hand, it is beneficial to the widening of the line of sight and the improvement of the safety of the operation process.

[0033] The hinged piece 8 is rotatably connected to the main frame 11 at one end and rotatably connected to the lower connecting disc 32 at the other end, which improves the stability of the main frame 11 during lifting.

Claims

1. A turning and lifting independently designed industrial vehicle, comprising a driving wheel (22), a handle (21), a main frame (11) and a vehicle leg (12) connected with the main frame (11), characterized in that: The auxiliary frame (3) is provided with a controller (4), a battery box (5), an oil cylinder (6) and a pump station (7); The handle (21) is connected with the driving wheel (22), and the driving wheel (22) is rotationally connected with the auxiliary frame (3); The base of the oil cylinder (6) is connected with the auxiliary frame (3), and the output end is connected with the main frame (11); the auxiliary frame (3) comprises a fixed block (31) and a connecting disc (32) below the fixed block (31), and the controller (4), the battery box (5), the oil cylinder (6) and the pump station (7) are all connected with the fixed block (31); The battery box (5) is located above the fixed block (31); the controller (4) is mounted on one side of the fixed block (31) close to the handle (21); in the length direction of the industrial vehicle, the battery box (5) is closest to the handle (21), the pump station (7) is farthest from the handle (21), and the oil cylinder (6) is located between the pump station (7) and the battery box (5); the fixed block (31) is arranged directly above the driving wheel (22).

2. The straddle lift independent design industrial vehicle of claim 1, wherein: The hinged piece (8) is rotationally connected with one end of the connecting disc (32) and the other end of the main frame (11) or the leg (12).

3. The straddle lift independent design industrial vehicle of claim 1, wherein: The connecting disc (32) is provided with a through groove for a wire harness, and the wire harness is connected with the controller (4) and the driving wheel (22) respectively.

4. The straddle lift independent design industrial vehicle of claim 1, wherein: The main frame (11) comprises a box body, one side of the box body facing the handle (21) is provided with a receiving cavity, and the oil cylinder (6) and the pump station (7) are located on the side of the fixed block (31) away from the handle (21) and arranged in the receiving cavity.

5. The straddle lift independent design industrial vehicle of claim 4, wherein: The box body comprises a side expansion part below for connecting with the leg (12) and a middle collection part above for connecting with the oil cylinder (6), and the width of the middle collection part is smaller than that of the side expansion part.

Images