Auxiliary wheel with damper and forklift

Abstract

The auxiliary wheel with the damper comprises the damper, an auxiliary wheel lower support, an auxiliary wheel upper support and a rotating wheel, one end of the auxiliary wheel upper support is rotatably connected with one end of the auxiliary wheel lower support, the other end of the auxiliary wheel lower support is located below the auxiliary wheel upper support, and the other end of the auxiliary wheel upper support is connected with the rotating wheel. The other end of the auxiliary wheel lower support is connected with the other end of the auxiliary wheel upper support through the damper, the two ends of the damper are rotationally connected with the auxiliary wheel lower support and the auxiliary wheel upper support respectively, and the rotating wheel is rotationally installed on the side, away from the damper, of the auxiliary wheel lower support. By utilizing the characteristics of the damper, the problem that the whole vehicle is inclined and the driving wheel slips when the road surface greatly impacts the wheel is solved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary wheel technology, and in particular to an auxiliary wheel with a damper and a forklift. Background Technology

[0002] Existing forklift auxiliary wheel assemblies are rigid wheels without elasticity. When encountering uneven road conditions, the auxiliary wheels will push up the drive wheels, causing the drive wheels to slip and lose steering control. On the other hand, the lack of cushioning leads to large vibrations in the whole vehicle and poor handling. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide an auxiliary wheel with a damper, which has both vertical floating and vibration reduction functions.

[0004] In a first aspect, this utility model proposes an auxiliary wheel with a damper, comprising a damper, a lower support for the auxiliary wheel, an upper support for the auxiliary wheel, and a rotating wheel. One end of the upper support for the auxiliary wheel is rotatably connected to one end of the lower support for the auxiliary wheel, and the other end of the lower support for the auxiliary wheel is located below the upper support for the auxiliary wheel. The other end of the lower support for the auxiliary wheel is connected to the other end of the upper support for the auxiliary wheel via the damper. Both ends of the damper are rotatably connected to the lower support for the auxiliary wheel and the upper support for the auxiliary wheel, respectively. The rotating wheel is rotatably mounted on the side of the lower support for the auxiliary wheel away from the damper.

[0005] Preferably, the upper bracket of the auxiliary wheel has a limiting groove in the middle for limiting the vertical floating of the rotating wheel, and a limiting rod is installed on the lower bracket of the auxiliary wheel at the position corresponding to the limiting groove. The limiting rod is slidably installed inside the limiting groove. The limiting rod is located at the top of the limiting groove, the rotating wheel is located at the top of the upward floating position, the limiting rod is located at the bottom of the limiting groove, and the rotating wheel is located at the bottom of the downward floating position.

[0006] Preferably, the damper is fitted with a spring on its outer side that compresses and resets as the rotating wheel moves up and down.

[0007] Preferably, the limiting rod is a detachable screw.

[0008] Preferably, the limiting groove is an elliptical groove in which the limiting rod can slide along the inner wall of the groove when the rotating wheel floats up and down.

[0009] Secondly, the forklift proposed in this utility model includes any one of the above-mentioned auxiliary wheels with dampers.

[0010] The beneficial effects of this utility model are:

[0011] (i) Utilizing the characteristics of dampers to provide resistance to motion and absorb the energy generated during motion, thereby ensuring the stability of forklift operation and reducing overall vehicle vibration;

[0012] (ii) Utilizing the characteristics of springs, they can generate large elastic deformation when under load. When encountering uneven road surfaces, they can float up and down, preventing the drive wheels from being lifted and causing steering failure. This ensures the adhesion of the ground to the vehicle when the vehicle is driving and turning, thus ensuring the safety of the vehicle.

[0013] (iii) The damper and spring structure are matched and coordinated, so that the whole vehicle can still drive smoothly on uneven road surfaces, thereby improving the applicability of the whole vehicle forklift; at the same time, the vibration of the whole vehicle is reduced, improving the operating comfort, service life and competitiveness of the forklift. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of an auxiliary wheel with a damper proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the damper proposed in this utility model.

[0017] In the diagram: 1-Damper, 2-Spring, 3-Lower support of auxiliary wheel, 4-Upper support of auxiliary wheel, 5-Rotating shaft one, 6-Rotating shaft two, 7-Rotating wheel, 8-Limiting groove, 9-Limiting rod. Detailed Implementation

[0018] Reference Figure 1 and Figure 2 An auxiliary wheel with a damper includes a damper 1, a lower support 3, an upper support 4, and a rotating wheel 7. One end of the upper support 4 is rotatably connected to one end of the lower support 3 via a rotating shaft 5. The other end of the lower support 3 is located below the upper support 4. The other end of the lower support 3 is connected to the other end of the upper support 4 via the damper 1. Both ends of the damper 1 are rotatably connected to the lower support 3 and the upper support 4, respectively. The rotating wheel 7 is rotatably mounted on the side of the lower support 3 away from the damper 1 via a rotating shaft 6.

[0019] Obviously, based on the above, since the damper 1 has the characteristics of being incompressible under instantaneous impact and being slowly compressed under continuous force, it reduces the up-and-down floating of the auxiliary wheel. At the same time, the damper 1, the lower support 3 of the auxiliary wheel, and the upper support 4 of the auxiliary wheel form a triangular structure. Under the action of external impact force, the lower support 3 and the upper support 4 of the auxiliary wheel rotate, forcing the damper 1 to compress. This converts the impact force into the rotational force of the lower support 3 and the upper support 4 of the auxiliary wheel and the compressive force of the damper 1, which can alleviate the pressure on the damper 1.

[0020] In this embodiment, a limiting groove 8 for limiting the vertical movement of the rotating wheel 7 is provided in the middle of the upper bracket 4 of the auxiliary wheel. A limiting rod 9 is installed in the lower bracket 3 of the auxiliary wheel at the position corresponding to the limiting groove 8. The limiting rod 9 is slidably installed inside the limiting groove 8. The limiting rod 9 is located at the top of the limiting groove 8, the rotating wheel 7 is located at the top of the upward floating position, the limiting rod 9 is located at the bottom of the limiting groove 8, and the rotating wheel 7 is located at the bottom of the downward floating position.

[0021] Obviously, based on the above, the setting of the limiting groove 8 can prevent the rotating wheel 7 from floating up and down beyond the dangerous value.

[0022] In this embodiment, a spring 2 is sleeved on the outside of the damper 1, which is compressed and reset as the rotating wheel 7 floats up and down.

[0023] Obviously, based on the above, when the ground impacts the rotating wheel 7 significantly, without the damper 1, the spring 2 will undergo a large compression instantaneously, causing the rotating wheel 7 to float too much up and down. At this time, the damper prevents the spring from deforming significantly, thus maintaining the stability of the rotating wheel 7 during its up and down movement.

[0024] In this embodiment, the limiting rod 9 is a detachable screw.

[0025] Obviously, based on the above, the limit rod 9 uses detachable screws to facilitate maintenance and replacement of the limit rod 9.

[0026] In this embodiment, the limiting groove 8 is an elliptical groove in which the limiting rod 9 can slide along the inner wall of the groove when the rotating wheel 7 floats up and down.

[0027] Obviously, based on the above, during the up-and-down floating process of the rotating wheel 7, the limiting rod 9 slides along the inner wall of the limiting groove 8, which can increase the stability of the up-and-down floating process of the rotating wheel 7.

[0028] As another embodiment of this application, this embodiment proposes a forklift that includes any of the above-mentioned auxiliary wheels with dampers.

[0029] Clearly, based on the above, this auxiliary wheel enables the forklift to travel smoothly even on uneven road surfaces, reducing overall vibration and improving the forklift's operating comfort, service life, and competitiveness.

[0030] To more clearly illustrate the implementation plan and its effects, we will use the attached diagram as an example:

[0031] See attached document Figure 1 and attached Figure 2When the upward force exerted by the ground on the rotating wheel 7 exceeds the initial force of the damper 1 and spring 2, the damper 1 and spring 2 will compress and shorten. At this time, the auxiliary wheel lower support 3 will rotate around the rotating shaft 5, with the direction of rotation upward along the limiting hole 8. When it reaches the uppermost end of the limiting hole 8, it reaches the mechanical limit and can no longer rotate. When the ground force decreases, the auxiliary wheel lower support 3 will rotate in the opposite direction around the rotating shaft 5. As the force exerted by the ground on the rotating wheel changes, the auxiliary wheel lower support 3 rotates clockwise or counterclockwise around the rotating shaft 5 along with the damper 1 and spring 2, and the rotating wheel 7 floats up and down, reducing the impact of uneven road surfaces on the vehicle body.

Claims

1. An auxiliary wheel with a damper, characterized in that: The device includes a damper (1), an auxiliary wheel lower bracket (3), an auxiliary wheel upper bracket (4), and a rotating wheel (7). One end of the auxiliary wheel upper bracket (4) is rotatably connected to one end of the auxiliary wheel lower bracket (3). The other end of the auxiliary wheel lower bracket (3) is located below the auxiliary wheel upper bracket (4). The other end of the auxiliary wheel lower bracket (3) is connected to the other end of the auxiliary wheel upper bracket (4) through the damper (1). The two ends of the damper (1) are rotatably connected to the auxiliary wheel lower bracket (3) and the auxiliary wheel upper bracket (4) respectively. The rotating wheel (7) is rotatably mounted on the side of the auxiliary wheel lower bracket (3) away from the damper (1).

2. The auxiliary wheel with a damper according to claim 1, characterized in that: The upper bracket (4) of the auxiliary wheel has a limiting groove (8) in the middle for limiting the vertical movement of the rotating wheel (7). The lower bracket (3) of the auxiliary wheel is equipped with a limiting rod (9) at the position corresponding to the limiting groove (8). The limiting rod (9) is slidably installed inside the limiting groove (8). The limiting rod (9) is located at the top of the limiting groove (8), the rotating wheel (7) is located at the top of the upward floating position, the limiting rod (9) is located at the bottom of the limiting groove (8), and the rotating wheel (7) is located at the bottom of the downward floating position.

3. An auxiliary wheel with a damper according to claim 1, characterized in that: The damper (1) is fitted with a spring (2) that is compressed and reset as the rotating wheel (7) moves up and down.

4. An auxiliary wheel with a damper according to claim 2, characterized in that: The limiting rod (9) is a screw that can be detachably installed.

5. An auxiliary wheel with a damper according to claim 2, characterized in that: The limiting groove (8) is an elliptical groove in which the limiting rod (9) can slide along the inner wall of the groove when the rotating wheel (7) floats up and down.

6. A forklift, characterized in that: It includes an auxiliary wheel with a damper as described in any one of claims 1-5.

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