Steering gear device of electro-tricycle

Abstract

The utility model relates to the technical field of steering gear boxes, in particular to an electric tricycle steering gear box device which comprises an installation shaft, a shaft sleeve is fixedly arranged outside the installation shaft in a sleeved mode, a limiting guide groove is formed in the shaft sleeve, a nut is fixed to the shaft sleeve, and the nut is arranged below the limiting guide groove. Through the arrangement of the limiting guide groove and the nut, the combined switch and the combined switch cover can be directly installed on the steering gear box, under the limitation of the nut and the limiting guide groove, the combined switch and the combined switch cover cannot be separated from the installation shaft and cannot rotate around the installation shaft, the structure is simple, the needed installation space is small, disassembly and assembly are convenient, and stability and safety performance are high.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gears, in particular to a steering gear device for an electric tricycle. Background Art

[0002] The steering gear, also known as the steering machine, is widely used in the fields of automobiles, aerospace, machinery manufacturing, etc. In the field of automobile manufacturing, the steering gear is one of the important components of the whole vehicle manufacturing and is the core component in the automobile steering system. The main function of the steering gear is to provide assistance when the driver turns the steering wheel, so as to reduce the steering force of the driver and make driving more relaxed and convenient. It is the key component to realize the steering function of the automobile and is directly related to the comfort and safety of driving.

[0003] The driver turns the steering wheel, and the rotation of the steering wheel is converted into linear motion through the steering mechanism, and then the steering tie rod is pushed to drive the wheel to rotate through the steering tie rod to realize the steering function of the automobile. In this process, the steering gear converts the energy output by the engine or motor into hydraulic or pneumatic energy through different power steering devices, so as to drive a certain transmission part in the steering transmission device or the steering gear to realize power steering.

[0004] A combination switch and a combination switch cover are usually installed above the steering gear of the automobile. However, the existing structure of the steering gear is not conducive to the disassembly and assembly of the combination switch and the combination switch cover. The disassembly and assembly process is relatively complex, and a large amount of space is required during disassembly and assembly. After the combination switch and the combination switch cover are installed on the steering gear, their stability is also relatively general.

[0005] Therefore, the present application provides a steering gear device for an electric tricycle to overcome the defects of the prior art. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the problems that the existing steering gear is not conducive to the disassembly and assembly of the combination switch and the combination switch cover, the disassembly and assembly process is relatively complex, a large amount of space is required, and the stability is relatively general.

[0007] The technical solution of the utility model provides a steering gear device for an electric tricycle, which includes a mounting shaft. An outer sleeve of the mounting shaft is fixedly sleeved with a shaft sleeve. A limiting guide groove is formed on the shaft sleeve. A nut is fixed on the shaft sleeve and is arranged below the limiting guide groove.

[0008] The bottom of the mounting shaft is drivingly connected with a worm and worm gear transmission mechanism. One side of the worm and worm gear transmission mechanism is drivingly connected with a pull rod. A ball head is fixed at one end of the pull rod. A spline is fixed on the mounting shaft.

[0009] The beneficial effects of a steering gear device for an electric tricycle provided by the utility model are as follows:

[0010] By providing a limit guide groove and a nut, the utility model can directly install a combination switch and a combination switch cover on a steering gear. Restricted by the nut and the limit guide groove, the combination switch and the combination switch cover can neither break away from the mounting shaft nor rotate around the mounting shaft. The structure is simple, the required installation space is small, disassembly and assembly are convenient, and the stability and safety performance are high. Description of the Drawings

[0011] Figure 1 is a schematic diagram of the overall structure of an embodiment of the utility model;

[0012] Figure 2 is a front view of an embodiment of the utility model;

[0013] Figure 3 is a top view of an embodiment of the utility model.

[0014] Among them, 1, mounting shaft; 2, shaft sleeve; 3, limit guide groove; 4, nut; 5, worm and worm gear transmission mechanism; 6, pull rod; 7, ball head; 8, spline. Detailed Embodiment

[0015] In order to make the technical means, technical features, utility model purpose and technical effects achieved by the utility model easy to understand, the following further elaborates the utility model with reference to specific drawings; obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0016] Embodiment

[0017] As Figures 1 to 3 shown: An electric tricycle steering gear device includes a mounting shaft 1, an outer portion of the mounting shaft 1 is fixedly sleeved with a shaft sleeve 2, a limit guide groove 3 is formed in the shaft sleeve 2, a nut 4 is fixed on the shaft sleeve 2, and the nut 4 is arranged below the limit guide groove 3.

[0018] The bottom of the mounting shaft 1 is drivingly connected with a worm and worm gear transmission mechanism 5, one side of the worm and worm gear transmission mechanism 5 is drivingly connected with a pull rod 6, one end of the pull rod 6 is fixedly provided with a ball head 7, and a spline 8 is fixed on the mounting shaft 1.

[0019] Certainly, the worm and worm gear transmission mechanism 5 in this device can also be replaced with a rack and pinion transmission mechanism. The worm and worm gear transmission mechanism 5 and the rack and pinion transmission mechanism both belong to very mature existing technologies and have long been widely used in vehicles, so they will not be elaborated here.

[0020] Working method: put the combination switch and the combination switch cover on the installation shaft 1, press the combination switch cover to move it down until the screw hole on the combination switch cover is aligned with the nut 4, then use the bolt to penetrate the combination switch cover and screw the bolt with the nut 4 to fix the combination switch cover and the combination switch. After the installation is completed, one end of the combination switch is in the limit guide groove 3. Under the action of the nut 4 and the limit guide groove 3, the combination switch and the combination switch cover can neither be separated from the installation shaft nor rotate around the installation shaft.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should fall within the technical scope of the present invention.

Claims

1. An electric tricycle steering gear device, comprising a mounting shaft (1), characterized in that: An outer fixing sleeve of the mounting shaft (1) is provided with a shaft sleeve (2), a limiting guide groove (3) is formed in the shaft sleeve (2), a nut (4) is fixed on the shaft sleeve (2), and the nut (4) is arranged below the limiting guide groove (3).

2. The electric tricycle steering gear device according to claim 1, characterized in that: A worm and worm gear transmission mechanism (5) is drivingly connected to the bottom of the mounting shaft (1), a pull rod (6) is drivingly connected to one side of the worm and worm gear transmission mechanism (5), a ball head (7) is fixed to one end of the pull rod (6), and a spline (8) is fixed on the mounting shaft (1).

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