Suspension for Mecanum wheel

Abstract

According to the technical scheme, the suspension for the Mecanum wheel is characterized by comprising a connecting base, and the connecting base is fixedly connected to a vehicle frame; the Mecanum wheels are rotationally connected to the fixing seat, and one end of the fixing seat is rotationally connected with the connecting seat; the two ends of the nitrogen spring are connected to the fixing base and the connecting base respectively, and the nitrogen spring is arranged at the end, away from the hinge point of the fixing base and the connecting base, of the fixing base. And through the arrangement of the nitrogen springs, the damping stroke of the suspension can be increased, and the suspension can be suitable for severe terrains.

Description

Technical Field

[0001] The utility model relates to the technical field of Mecanum wheels, and more particularly to a suspension for Mecanum wheels. Background Art

[0002] The structure of the Mecanum wheel is that 4-16 small rollers are evenly distributed on the outer circle of the hub. The axis of the small rollers forms a certain angle with the axis of the hub, usually 45 degrees. The small rollers rotate around their own axes and rotate with the hub at the same time.

[0003] Cars using Mecanum wheels can perform complex movements such as moving forward and backward, turning left and right, rotating on the spot, turning with zero radius, and moving laterally.

[0004] Most of the suspension systems used in vehicles based on Mecanum wheels now have a relatively small buffer stroke. When facing some harsh terrains such as steep slopes or stairs, the chassis of this structure has poor shock absorption ability and the shock absorber stroke can easily reach its limit. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a Mecanum wheel suspension, which can increase the shock absorbing stroke of the suspension by setting a nitrogen spring, so that the suspension can be applied to relatively harsh terrain.

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solution: a Mecanum wheel suspension, comprising a connecting seat, wherein the connecting seat is fixedly connected to a vehicle frame;

[0007] A fixed seat, the Mecanum wheel is rotatably connected to the fixed seat, and one end of the fixed seat is rotatably connected to the connecting seat;

[0008] And a nitrogen spring, the two ends of which are respectively connected to the fixing seat and the connecting seat, and the nitrogen spring is arranged at one end of the fixing seat away from the hinge point between the fixing seat and the connecting seat.

[0009] The utility model is further configured as follows: it also includes a rotating seat, which is arranged at one end of the connecting seat away from the nitrogen spring, the rotating seat is fixedly connected to the connecting seat and is rotatably connected to the fixed seat, and the connecting seat is rotatably connected to the fixed seat through the rotating seat.

[0010] The utility model is further configured to include a shock-absorbing pad, which is arranged between the connecting seat and the fixing seat, and has two ends fixedly connected to the fixing seat and the connecting seat respectively.

[0011] The utility model is further configured as follows: the shock-absorbing pad is arranged between the nitrogen spring and the rotating seat.

[0012] The utility model is further configured as follows: a rotating shaft is fixedly connected to the fixed seat, and the rotating shaft is rotatably connected to the rotating seat.

[0013] The utility model is further configured as follows: the rotating shaft is rotatably connected to the rotating seat through a bearing, and the rotating shaft is connected to a locking nut located on a side of the rotating seat away from the fixed seat.

[0014] The utility model is further configured as follows: the rotating shaft is fixed to the fixing seat by three bolts parallel to the axis of the rotating shaft, and the three bolts are arranged in a triangle.

[0015] The utility model is further configured to include a reducer, wherein the reducer is fixedly connected to the fixing seat, and the output shaft of the reducer is connected to the axle on the Mecanum wheel through a key and a keyway.

[0016] In summary, the present invention has the following beneficial effects compared to the prior art: the present invention can increase the shock absorbing stroke of the suspension by providing a nitrogen spring, so that the suspension can be applied to relatively harsh terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a nitrogen spring according to an embodiment;

[0018] Figure 2 Schematic diagram of a locking nut according to an embodiment.

[0019] In the figure: 1. Connecting seat; 2. Fixed seat; 3. Nitrogen spring; 4. Shock absorber; 5. Rotating seat; 6. Reducer; 7. Locking nut. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional terms used are used to illustrate rather than limit the invention.

[0021] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0022] Example: A Mecanum wheel suspension, see attached Figure 1 and attached Figure 2, including a connecting seat 1, a fixing seat 2 and a nitrogen spring 3, wherein the connecting seat 1 is fixedly connected to the frame; the Mecanum wheel is rotatably connected to the fixing seat 2, and one end of the fixing seat 2 is rotatably connected to the connecting seat 1; the two ends of the nitrogen spring 3 are respectively connected to the fixing seat 2 and the connecting seat 1, and the nitrogen spring 3 is arranged at one end of the fixing seat 2 away from the hinge point between the fixing seat 2 and the connecting seat 1.

[0023] By providing the nitrogen spring 3 , the shock absorbing stroke of the suspension can be increased, so that the suspension can be applied to relatively harsh terrain.

[0024] Specifically, this embodiment also includes a rotating seat 5, which is arranged at the end of the connecting seat 1 away from the nitrogen spring 3. The rotating seat 5 is fixedly connected to the connecting seat 1 and is rotatably connected to the fixed seat 2. The connecting seat 1 is rotatably connected to the fixed seat 2 through the rotating seat 5.

[0025] Specifically, this embodiment further includes a shock-absorbing pad 4, which is disposed between the connecting seat 1 and the fixing seat 2, with both ends fixedly connected to the fixing seat 2 and the connecting seat 1. The shock-absorbing pad 4 is disposed between the nitrogen spring 3 and the rotating seat 5, and is configured as a polyurethane shock-absorbing pad 4.

[0026] Specifically, a rotating shaft is fixedly connected to the fixed base 2, and the rotating shaft is rotatably connected to the rotating base 5. The rotating shaft is rotatably connected to the rotating base 5 via a bearing. The rotating shaft is connected to a locking nut 7 located on the side of the rotating base 5 away from the fixed base 2. The provision of the locking nut 7 can prevent the rotating base 5 from falling off the rotating shaft.

[0027] Specifically, the rotating shaft is fixed to the fixing base 2 by three bolts parallel to the rotating shaft axis, and the three bolts are arranged in a triangle. The three bolts arranged in a triangle are used to fix the rotating shaft, which can improve the stability of the rotating shaft fixed to the fixing base 2.

[0028] Specifically, this embodiment further includes a reducer 6, which is fixedly connected to the fixing base 2, and the output shaft of the reducer 6 is connected to the axle on the Mecanum wheel through a key and a keyway.

[0029] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A Mecanum wheel suspension, characterized by: It comprises a connecting seat (1), wherein the connecting seat (1) is fixedly connected to the vehicle frame; A fixed seat (2), the Mecanum wheel is rotatably connected to the fixed seat (2), and one end of the fixed seat (2) is rotatably connected to the connecting seat (1); and a nitrogen spring (3), wherein both ends of the nitrogen spring (3) are respectively connected to the fixing seat (2) and the connecting seat (1), and the nitrogen spring (3) is arranged at one end of the fixing seat (2) away from the hinge point between the fixing seat (2) and the connecting seat (1).

2. The Mecanum wheel suspension according to claim 1, characterized in that: The invention also includes a rotating seat (5), which is arranged at one end of the connecting seat (1) away from the nitrogen spring (3), and the rotating seat (5) is fixedly connected to the connecting seat (1) and is rotatably connected to the fixed seat (2). The connecting seat (1) is rotatably connected to the fixed seat (2) through the rotating seat (5).

3. The Mecanum wheel suspension according to claim 2, characterized in that: It also includes a shock-absorbing pad (4), which is arranged between the connecting seat (1) and the fixing seat (2), and has two ends fixedly connected to the fixing seat (2) and the connecting seat (1).

4. The Mecanum wheel suspension according to claim 3, characterized in that: The shock-absorbing pad (4) is arranged between the nitrogen spring (3) and the rotating seat (5).

5. The Mecanum wheel suspension according to claim 4, characterized in that: A rotating shaft is fixedly connected to the fixed seat (2), and the rotating shaft is rotatably connected to the rotating seat (5).

6. The Mecanum wheel suspension according to claim 5, characterized in that: The rotating shaft is rotatably connected to the rotating seat (5) via a bearing, and a locking nut (7) located on a side of the rotating seat (5) away from the fixed seat (2) is connected to the rotating shaft.

7. The Mecanum wheel suspension according to claim 6, characterized in that: The rotating shaft is fixed on the fixing seat (2) by three bolts parallel to the axis of the rotating shaft, and the three bolts are arranged in a triangle.

8. The Mecanum wheel suspension according to claim 7, characterized in that: The invention also comprises a reducer (6), wherein the reducer (6) is fixedly connected to the fixing seat (2), and the output shaft of the reducer (6) is connected to the axle on the Mecanum wheel through a key and a keyway.

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