CN220470458U - Novel empty tube center shaft of electric vehicle - Google Patents

Abstract

The utility model discloses a novel hollow tube center shaft of an electric vehicle, which comprises a shaft body consisting of connecting shafts at two ends and a main shaft in the middle, wherein the shaft body is hollow, stop pieces are arranged at two ends of the main shaft in an outward protruding mode, and external thread connecting pipes are arranged at the free ends of the connecting shafts at the two ends. Compared with the prior art, the utility model has the advantages that: the novel empty tube center shaft of the electric vehicle is capable of saving production cost, guaranteeing normal use and being convenient to install and use with a crank.

Description

Novel empty tube center shaft of electric vehicle

Technical Field

The utility model relates to the technical field of connecting shafts, in particular to a novel hollow tube center shaft of an electric vehicle.

Background

The connecting shaft of the electric vehicle is a rotating shaft in the prior art, and because the connecting shaft is subjected to bending moment and torque, the two ends of the connecting shaft are used for installing a crank, the connecting shaft of the electric vehicle in the prior art is of a solid structure, so that the production cost is easily increased when the connecting shaft is used for preparation, and meanwhile, most connecting shaft and the crank installing structure are of internal thread structures and are easy to slide.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the technical defects and providing a novel hollow tube center shaft of an electric vehicle, which saves production cost, ensures normal use and is convenient to install and use with a crank.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the novel empty pipe center shaft of the electric vehicle comprises a shaft body consisting of two end connecting shafts and a middle main shaft, wherein the shaft body is in hollow arrangement, two end parts on the main shaft are outwards protruded and provided with stop parts, and the free ends of the two end connecting shafts are connected and provided with external thread connecting pipes.

As an improvement, the outer side wall of one end of the connecting shaft, which is close to the external thread connecting pipe, is concave and is provided with a quadrangular shape.

As an improvement, the stop member is a convex ring which is arranged in a convex manner.

Compared with the prior art, the utility model has the advantages that: the hollow setting through the axis body can save materials, saves manufacturing cost in this application, and the setting of external screw thread connecting pipe can make things convenient for subsequent use such as change maintenance simultaneously.

Drawings

Fig. 1 is a schematic structural view of a hollow tube center shaft of a novel electric vehicle.

Fig. 2 is a schematic structural diagram of a left view of a hollow tube center shaft of the novel electric vehicle.

As shown in the figure: 1. a connecting shaft; 2. a main shaft; 3. a stopper; 4. an external thread connecting pipe; 5. a quadrangular prism shape.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this utility model belongs, and the knowledge of terms used in the description of this utility model herein for the purpose of describing particular embodiments is not intended to limit the utility model, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Please refer to fig. 1-2, the novel empty tube center shaft of the electric vehicle comprises a shaft body composed of two end connecting shafts 1 and a middle main shaft 2, the shaft body is in a hollow arrangement, two end parts on the main shaft 2 are all provided with stop members 3 in a protruding mode, free ends of the two end connecting shafts 1 are all connected and provided with external thread connecting pipes 4, the outer side wall of one end, close to the external thread connecting pipes 4, of the connecting shaft 1 is provided with a quadrangular 5 in a concave mode, sliding wires are generated in use conveniently through the arrangement of the external thread connecting pipes 4, cutting, welding, replacement and the like are facilitated, maintenance and use are facilitated, and the stop members 3 are protruding rings arranged in a protruding mode.

In one embodiment, the stop 3 may be configured for use as a detent, such as a detent pin or a groove.

When the utility model is specifically implemented, the main shaft is used for being connected with the chain disk of the electric vehicle when the electric vehicle chain disk is used, the main shaft is fixedly connected with the crank through the external thread connecting pipes arranged at the two ends, the positioning sleeve can be arranged on the inner side wall of the crank in a sliding way by means of the end part arranged in a quadrangular shape, and the positioning sleeve is sleeved on the quadrangular shape after the crank is connected, so that the positioning connection effect is improved. What is not described in detail in this specification is prior art known to those skilled in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (1)

1. Novel empty tub of axis of electric motor car, include the axis body that comprises both ends connecting axle (1) and middle part main shaft (2), its characterized in that: the shaft body is hollow, both ends all evagination is equipped with and ends position spare (3) on main shaft (2), and the free end of both ends connecting axle (1) all is connected and is equipped with external screw thread connecting pipe (4), connecting axle (1) are close to external screw thread connecting pipe (4) one end lateral wall and are established to quadrangular (5) for the indent, end position spare (3) are the bulge loop that the evagination set up.