Stabilization system of industrial vehicle

Abstract

The utility model relates to the technical field of industrial vehicles, and particularly discloses a stabilizing system of an industrial vehicle, which comprises a floating wheel set, the floating wheel set comprises a mounting seat, a wheel carrier, a floating wheel and a limiting piece, the mounting seat is fixed on a frame, the floating wheel is hinged with the mounting seat through the wheel carrier, and the limiting piece is arranged on the frame in a liftable manner. The limiting part is arranged on the frame and located over the wheel carrier, the floating space allowing the wheel carrier to float upwards is arranged between the lower end face of the limiting part and the top face of the wheel carrier, and due to the fact that the limiting part is arranged on the frame in a lifting mode and the floating space of the limiting part is adjustable, the floating space of the limiting part can be adjusted to be small under the conditions that the road condition is good and the vehicle is heavy-loaded. The floating space of the floating wheel can be adjusted to be larger under the conditions of poor road conditions and light load of the vehicle, so that the floating distance of the floating wheel can be kept smaller, the stability of straight movement can be improved, the sidesway amplitude of turning can be reduced, and the rollover can be avoided, the floating space of the floating wheel can be adjusted to be larger under the conditions of poor road conditions and light load of the vehicle, the larger floating distance of the floating wheel can be kept, and the trafficability of the vehicle can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial vehicles, in particular to a stabilizing system of an industrial vehicle. Background Art

[0002] With the continuous improvement of industrial automation, various industrial vehicles such as forklifts and stackers are increasingly used in industries such as logistics and warehousing. When carrying out cargo handling operations, these industrial vehicles must not only have good power performance, but also excellent stability and safety to ensure that they can complete tasks safely and efficiently in complex and changing working environments.

[0003] In the prior art, traditional industrial vehicles usually use auxiliary wheels on both sides of the drive wheel to ensure stability during driving. However, the floating range of conventional auxiliary wheels is fixed, which makes it difficult to adapt to both heavy and light load conditions. In addition, the distance between the auxiliary wheels and the frame cannot be adjusted, resulting in each auxiliary wheel model only corresponding to one frame model, which has poor applicability. At the same time, there is no linkage between the two auxiliary wheels, and their coordination is poor. Summary of the Invention

[0004] The present invention is made in consideration of the above-mentioned problems. The purpose of the utility model is to provide a stabilization system for industrial vehicles, which can be applicable to frames of different models and can also adapt to different vehicle conditions and road conditions, and has good stability.

[0005] To achieve the above objectives, the present invention provides a stabilization system for an industrial vehicle, the industrial vehicle further comprising a frame system, the frame system comprising a frame and a drive wheel rotatably disposed at the bottom of the frame, the stabilization system comprising a floating wheel set, at least two of the floating wheel sets being symmetrically arranged on either side of the drive wheel and connected to the frame;

[0006] Each of the floating wheel groups includes a mounting seat, a wheel frame, a floating wheel and a limiting member. The mounting seat is fixed to the vehicle frame, and the floating wheel is hinged to the mounting seat through the wheel frame. The limiting member is liftably arranged on the vehicle frame and is located directly above the wheel frame. A floating space is provided between the lower end surface of the limiting member and the top surface of the wheel frame for the wheel frame to float.

[0007] According to the above-mentioned stabilization system for an industrial vehicle, the wheel frame includes a first frame and a second frame, one end of the first frame is connected to the top of the second frame, the floating wheel is rotatably fixed to the bottom end of the second frame, the middle part of the first frame is hinged to the mounting seat, and the top of the first frame near one end of the second frame is provided with an abutment portion, and the limit member is located directly above the abutment portion.

[0008] According to the above-mentioned stabilization system of an industrial vehicle, the limiting member is configured as an adjusting bolt, the adjusting bolt is passed through the frame and is threadedly engaged with the frame, and the adjusting bolt can abut against the top of the abutting portion to limit the wheel frame from continuing to float up.

[0009] According to the above-mentioned stabilization system for an industrial vehicle, the floating wheel assembly further includes a pre-tightening member, which is located between the first frame and the mounting seat, and one end of the pre-tightening member abuts against the top of the first frame near one end of the second frame, and is used to provide a downward elastic pre-tightening force for the wheel frame.

[0010] According to the above-mentioned stabilization system of an industrial vehicle, the pre-tightening component includes a spring, a pre-tightening bolt and a tightening nut. The spring is located between the first frame and the mounting seat. The pre-tightening bolt is passed through the middle of the spring, and the nut of the pre-tightening bolt is connected to the upper end of the spring through a first pressure plate. The tightening nut is threadedly engaged with the lower end of the pre-tightening bolt and is connected to the lower end of the spring through a second pressure plate.

[0011] According to the above-mentioned industrial vehicle stabilization system, the pre-tightening member further includes an adjusting screw sleeve, which is passed through the mounting seat and is threadedly engaged with the mounting seat, and the upper end of the pre-tightening bolt is located in the adjusting screw sleeve.

[0012] The above-mentioned stabilization system for an industrial vehicle further includes a torsion bar, which is U-shaped as a whole. The two wheel frames located on both sides of the driving wheel are respectively connected to the two ends of the torsion bar.

[0013] According to the above-mentioned stabilization system for an industrial vehicle, both ends of the torsion bar are respectively connected to ends of the two first frames away from the second frames.

[0014] The utility model has the following beneficial effects:

[0015] 1. Floating wheels are provided on both sides of the driving wheel. They can float up and down with the wheel frame. Because the limiter can be raised and lowered, the floating space of the floating wheels can be adjusted. When the vehicle is heavily loaded and traveling on a relatively flat road, the floating space can be adjusted to a smaller size to improve the stability of straight driving under heavy load and reduce the roll amplitude when turning. When the vehicle is lightly loaded and traveling on a relatively poor road surface, the floating space can be adjusted to a larger size to improve the vehicle's passability and have a better shock absorption effect.

[0016] 2. The distance between the floating wheel and the frame can be adjusted by adjusting the screw sleeve, which makes it suitable for frames of different heights and thicknesses. It has good applicability. The pre-tightening force of the floating wheel can be adjusted by pre-tightening the screw and loosening the nut. In combination with the adjusting screw sleeve, the floating wheels on both sides of the vehicle can provide stronger support for the entire vehicle, and the stability of no-load operation is better.

[0017] 3. Both wheel sets are fixedly connected by a torsion bar, which can realize the linkage of the two floating wheels, realize force transmission, and ensure the synchronization of the two floating wheels, thereby improving the stability of the whole vehicle, avoiding the collision of obstacles and causing steering loss when one side of the floating wheel has no supporting force, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the assembly of the stabilizing system and the frame system of the embodiment;

[0019] Figure 2 1 is a schematic diagram of the overall structure of the stabilization system of the embodiment;

[0020] Figure 3 2. It is a cross-sectional view of the floating wheel assembly assembly of the embodiment.

[0021] In the picture:

[0022] 100, mounting seat; 200, wheel frame; 210, first frame; 211, abutment portion; 220, second frame; 300, floating wheel; 400, adjusting bolt; 500, preload member; 510, spring; 520, preload bolt; 530, loose nut; 540, adjusting screw sleeve; 600, torsion bar; 700, drive wheel; 800, frame. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1-3 As shown, a stabilizing system for an industrial vehicle includes at least two sets of floating wheels 300 .

[0025] Specifically, the industrial vehicle also includes a frame 800 system, which includes a frame 800 and a drive wheel 700 rotatably arranged at the bottom of the frame 800. Two floating wheel groups 300 are symmetrically arranged on both sides of the drive wheel 700 and connected to the frame 800. They are used to provide floating support for the frame 800 on both sides of the drive wheel 700, which can effectively prevent the frame 800 from tipping over. At the same time, its floating support can also improve the overall passability of the vehicle.

[0026] Specifically, each floating wheel 300 group includes a mounting seat 100, a wheel frame 200, a floating wheel 300 and a limiting member. The mounting seat 100 is fixed to the vehicle frame 800. The floating wheel 300 is hinged to the mounting seat 100 through the wheel frame 200. The limiting member is liftably arranged on the vehicle frame 800 and is located directly above the wheel frame 200. A floating space for the wheel frame 200 to float is provided between the lower end surface of the limiting member and the top surface of the wheel frame 200. The floating space is the distance between the lower end surface of the limiting member and the top surface of the wheel frame 200. Since the limiting member is liftably arranged on the vehicle frame On the frame 800, the distance between its lower end surface and the top surface of the wheel frame 200 can be adjusted, and the floating space can also be adjusted. When the road condition is good and the vehicle is heavily loaded, the floating space can be adjusted to be smaller, and the floating distance of the floating wheel 300 is kept smaller, which can improve the stability of straight driving and reduce the side tilt amplitude when turning, and avoid rollover. When the road condition is poor and the vehicle is lightly loaded, the floating space can be adjusted to be larger, and the floating distance of the floating wheel 300 is kept larger, which can effectively improve the vehicle's passability and have a better shock absorption effect.

[0027] Specifically, the wheel frame 200 includes a first frame body 210 and a second frame body 220. One end of the first frame body 210 is connected to the top of the second frame body 220, and the floating wheel 300 is rotatably fixed to the bottom end of the second frame body 220. The middle part of the first frame body 210 is hinged to the mounting seat 100. The first frame body 210 is provided with an abutment portion 211 at the top near one end of the second frame body 220, and the limiting member is located directly above the abutment portion 211. In this embodiment, the angle between the first frame body 210 and the second frame body 220 is less than 90°. When the middle part of the first frame body 210 rotates around the mounting portion and drives the end provided with the abutment portion 211 to rise, the abutment portion 211 can move to abut against the limiting member to limit the wheel frame 200 from continuing to float, thereby limiting the floating wheel 300 from continuing to float. The abutment portion 211 can be made of a flexible material such as rubber to reduce noise and avoid collision damage.

[0028] In order to realize the lifting and lowering movement of the limiting member on the frame 800, the limiting member is set as an adjusting bolt 400, which is passed through the frame 800 and is threadedly engaged with the frame 800. The adjusting bolt 400 can abut against the top of the abutting portion 211 to limit the wheel frame 200 from continuing to float up. By rotating the adjusting bolt 400, it can be raised or lowered.

[0029] In order to provide a preload force for the floating wheel 300, the floating wheel 300 assembly further includes a preload member 500. The preload member 500 is located between the first frame 210 and the mounting base 100, and one end of the preload member 500 abuts against the top of the first frame 210 near the end of the second frame 220. The preload member 500 is used to provide a downward elastic preload force for the wheel frame 200. The preload member 500 applies the elastic preload force to the first frame 210, and the first frame 210 transmits the force to the floating wheel 300, so that the floating wheel 300 can conform to the ground.

[0030] Specifically, the pre-tightening member 500 includes a spring 510, a pre-tightening bolt 520 and a tightening nut 530. The spring 510 is located between the first frame 210 and the mounting seat 100. The pre-tightening bolt 520 is passed through the middle of the spring 510, and the nut of the pre-tightening bolt 520 is connected to the upper end of the spring 510 through the first pressure plate. The tightening nut 530 is threadedly engaged with the lower end of the adjusting bolt 400 and is connected to the lower end of the spring 510 through the second pressure plate. The compression amount of the spring 510 can be adjusted by the pre-tightening bolt 520 and the tightening nut 530. The greater the compression, the greater the pre-tightening force of the spring 510, and the tighter the floating wheel 300 is pressed down.

[0031] In order to adjust the distance between the floating wheel 300 and the bottom of the frame 800, the preload member 500 also includes an adjusting screw sleeve 540. The adjusting screw sleeve 540 is passed through the mounting seat 100 and is threadedly engaged with the mounting seat 100. The upper end of the adjusting bolt 400 is located in the adjusting screw sleeve 540. During the rotation of the adjusting screw sleeve 540, the wheel frame 200 can be driven to move up and down as a whole, thereby adjusting the distance between the floating wheel 300 and the bottom of the frame 800 to adapt to frames 800 of different heights and thicknesses. When the floating wheel 300 has already touched the ground, by rotating the adjusting screw sleeve 540, a greater force can be applied to the floating wheel 300 to make it completely fit the ground.

[0032] In order to achieve synchronous movement of the two floating wheels 300, a torsion bar 600 is also included. The torsion bar 600 is generally U-shaped. The two wheel frames 200 located on both sides of the driving wheel 700 are respectively connected to the two ends of the torsion bar 600. In this embodiment, the two ends of the torsion bar 600 are respectively connected to the ends of the two first frames 210 away from the second frames 220. When one floating wheel 300 rises, it can drive the end of the first frame 210 away from the second frame 220 to fall. The lowering of the second frame 220 drives one end of the torsion bar 600 to fall. Due to its overall U-shape, the other end of the torsion bar 600 also falls, thereby driving the other floating wheel 300 to rise. This ensures the synchronous movement of the two floating wheels 300, improves the stability of the entire vehicle, prevents the floating wheel 300 on one side from hitting an obstacle when it has no supporting force, and thus prevents steering loss, thereby improving safety.

[0033] The technical solution of the present invention has been described in detail above with reference to the accompanying drawings, and the embodiments described are intended to help understand the concept of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention may make various modifications or additions to the described specific embodiments, or adopt similar methods to replace them, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A stabilization system for an industrial vehicle, the industrial vehicle further comprising a frame system, the frame system comprising a frame and a drive wheel rotatably disposed at the bottom of the frame, characterized in that: The stabilizing system includes a floating wheel set, at least two of which are symmetrically arranged on both sides of the driving wheel and connected to the frame; Each of the floating wheel groups includes a mounting seat, a wheel frame, a floating wheel and a limiting member. The mounting seat is fixed to the vehicle frame, and the floating wheel is hinged to the mounting seat through the wheel frame. The limiting member is liftably arranged on the vehicle frame and is located directly above the wheel frame. A floating space is provided between the lower end surface of the limiting member and the top surface of the wheel frame for the wheel frame to float.

2. The stabilization system for an industrial vehicle according to claim 1, characterized in that: The wheel frame includes a first frame body and a second frame body, one end of the first frame body is connected to the top of the second frame body, the floating wheel is rotatably fixed to the bottom end of the second frame body, the middle part of the first frame body is hinged to the mounting seat, and the top of the first frame body near one end of the second frame body is provided with an abutment portion, and the limiting member is located directly above the abutment portion.

3. The stabilization system for an industrial vehicle according to claim 2, characterized in that: The limiting member is configured as an adjusting bolt, which is passed through the vehicle frame and is threadedly engaged with the vehicle frame. The adjusting bolt can abut against the top of the abutting portion to limit the wheel frame from continuing to float upward.

4. The stabilization system for an industrial vehicle according to claim 2, characterized in that: The floating wheel assembly further includes a pre-tightening member, which is located between the first frame and the mounting seat, and one end of the pre-tightening member abuts against the top of the first frame near one end of the second frame, and is used to provide a downward elastic pre-tightening force for the wheel frame.

5. The stabilization system for an industrial vehicle according to claim 4, characterized in that: The pre-tightening component includes a spring, a pre-tightening bolt and a tightening nut. The spring is located between the first frame and the mounting seat. The pre-tightening bolt is passed through the middle of the spring, and the nut of the pre-tightening bolt is connected to the upper end of the spring through a first pressure plate. The tightening nut is threadedly engaged with the lower end of the pre-tightening bolt and is connected to the lower end of the spring through a second pressure plate.

6. The stabilization system for an industrial vehicle according to claim 5, characterized in that: The pre-tightening member further includes an adjusting screw sleeve, which is passed through the mounting seat and is threadedly engaged with the mounting seat. The upper end of the pre-tightening bolt is located in the adjusting screw sleeve.

7. The stabilization system for an industrial vehicle according to claim 2, characterized in that: It also includes a torsion bar, which is U-shaped as a whole, and the two wheel frames located on both sides of the driving wheel are respectively connected to the two ends of the torsion bar.

8. The stabilization system for an industrial vehicle according to claim 7, characterized in that: Two ends of the torsion bar are respectively connected to one end of the two first frames away from the second frame.

Images