CN210822450U

CN210822450U - Sensor rotation stopping positioning ring of steering gear

Info

Publication number: CN210822450U
Application number: CN201921973732.3U
Authority: CN
Inventors: 王进丁; 王正成; 胡立靖; 汪红辉; 陈修华
Original assignee: Changhui Automobile Steering System Huangshan Co ltd
Current assignee: Changhui Automobile Steering System Huangshan Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-23
Anticipated expiration: 2029-11-15

Abstract

A sensor rotation stopping positioning ring of a steering gear is sleeved in a sensor in a steering gear shell and comprises a concave ring, an annular groove, a first clamping seat, a convex block, a second clamping seat and a buckle, the outer diameter of the concave ring is matched with the steering gear shell, the concave ring is provided with the annular groove, one side of the concave ring is provided with the first clamping seat, the position, relative to the first clamping seat, of the concave ring is further provided with the convex block matched with the groove in the steering gear shell, and the convex block is provided with the second clamping seat and the buckle. The utility model discloses the normal transmission of sensor electromagnetic signal can not be influenced to the anti-electromagnetic interference material of holding ring, and the excircle of usable holding ring realizes the centering, can satisfy the sea and draw the sensor along the splining of axle center direction, still can realize the compactedness of sensor at the direction of height size behind the cancellation bearing.

Description

Sensor rotation stopping positioning ring of steering gear

Technical Field

The utility model relates to an electric power steering gear technical field especially relates to a sensor of steering gear splines holding ring.

Background

At present, the steering gear for the vehicle mainly adopts an electric power-assisted type, a pipe column type, a rack and pinion type and a circulating ball type. The electric power steering system mainly comprises a steering wheel torque sensor, a vehicle speed sensor, a controller, a power motor, a speed reducing mechanism and the like. The basic principle is that a controller receives sensor signals (such as a torque signal and a rotation angle signal sent by a sea pull sensor), a vehicle speed signal and an engine signal on a steering wheel, and outputs a control signal to control a motor to output power-assisted torque according to a predetermined power-assisted characteristic. The electric power steering system has the advantages of energy conservation, high safety performance, environmental friendliness and the like, and is one of the development directions of the future power steering technology. In the shell of some current electric power steering gears, a sea pull sensor is arranged at the joint of a connecting shaft and an output shaft, a rotation stopping positioning disc is installed in the sensor in a matching mode, and a rolling bearing is installed on the central hole of the positioning disc in a pressing mode and used for rotation stopping of the sensor and centering of the positioning disc. The metal material of the bearing is easy to influence the normal transmission of the torque and corner electromagnetic signals of the sensor, so that when the sensor is installed, any metal part cannot be arranged within 10mm of the lower part, and the requirement of the upper space and the lower space of the sensor is increased. From the aspect of assembly, the original structure increases the material cost of the bearing and also increases the press fitting process. Therefore, the invention discloses a rotation stopping positioning ring for a sea pull sensor, which is necessary to eliminate a metal bearing arranged on an output shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sensor of steering gear splines holding ring for the spline of sea pull sensor, the metal bearing of solving original spline structure below sensor easily influences sensor moment of torsion and the normal transmission of corner electromagnetic signal, and need increase the space requirement behind sensor below installation bearing, and original structure has increased the problem of material cost and pressure equipment process.

The utility model provides a technical scheme that its technical problem adopted is:

a sensor rotation stopping positioning ring of a steering gear is sleeved in a sensor in a steering gear shell and comprises a concave ring, an annular groove, a first clamping seat, a convex block, a second clamping seat and a buckle, the outer diameter of the concave ring is matched with the steering gear shell, the concave ring is provided with the annular groove, one side of the concave ring is provided with the first clamping seat, the position, relative to the first clamping seat, of the concave ring is further provided with the convex block matched with the groove in the steering gear shell, and the convex block is provided with the second clamping seat and the buckle matched with the groove in the steering gear shell.

Further, in order to prevent electromagnetic interference of metal materials, the sensor rotation stopping positioning ring of the steering gear is made of anti-electromagnetic interference materials.

The utility model relates to a sensor of steering gear splines anti-electromagnetic interference material of holding ring can not influence the normal transmission of sensor electromagnetic signal, and the excircle of usable holding ring realizes the centering, can satisfy the sensor of dragging by sea and follow the spline of axle center direction, has still guaranteed that the sensor uses and float at the axial trace of allowed band. After the bearing is eliminated, the compactness of the size of the sensor in the height direction can be realized. And from the assembly aspect, use the utility model discloses reduced bearing material cost, also reduced the pressure equipment process simultaneously, other relevant assembly processes also obtain simplifying.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a structural diagram of a sensor rotation stopping positioning ring of a steering gear in a steering gear housing according to the present invention.

Fig. 2 is a perspective view of the sensor rotation stopping positioning ring of the steering gear of the present invention.

Fig. 3 is a top view of the sensor rotation stopping positioning ring of the steering gear of the present invention.

Fig. 4 is a front view of the sensor rotation stopping positioning ring of the steering gear of the present invention.

Detailed Description

In the embodiment, as shown in fig. 1-4, the sensor rotation stopping positioning ring of the steering gear, the positioning ring 1 for stopping rotation of the steering gear consists of a concave ring 11, an annular groove 12, a first clamping seat 13, a convex block 14, a second clamping seat 15 and a buckle 16, and the positioning ring 1 is sleeved in a sea pull sensor 3 during assembly. The outer diameter of the concave ring 11 is matched with the steering gear shell 2, and the annular groove 12 on the concave ring 11 is used for assembling an elastic O-shaped ring, so that the outer circle positioning, clearance eliminating and shock absorption effects are achieved. A first clamping seat 13 is arranged on one surface of the concave ring 11, and a clamping groove in the middle of the first clamping seat 13 is used for clamping a convex part 31 of the sensor 3, so that the rotation stopping effect of the sensor is achieved;

the position of the concave ring 11 relative to the first clamping seat 13 is also provided with a convex block 14 matched with a groove 21 in the steering gear shell 2, a second clamping seat 15 is arranged on the convex block 14, and a buckle 16 matched with the groove 21 on the steering gear shell 2. The clamping groove in the middle of the second clamping seat 15 is a sensor wiring harness channel. During assembly, the snap 16 is snapped into a groove in the steering gear housing 2, preventing the entire retaining ring from loosening.

In order to prevent electromagnetic interference, the positioning ring 1 is made of an anti-electromagnetic interference material, such as plastics made of various materials, so that the sensor is prevented from being influenced by electromagnetic interference of metal parts.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited to the above embodiments, and various modifications made by the method concept and technical solution of the present invention or those directly applied to other applications without modification fall within the protection scope of the present invention.

Claims

1. A sensor rotation-stopping positioning ring of a steering gear is sleeved in a sensor (3) in a steering gear shell (2) and is characterized in that the positioning ring (1) is composed of a concave ring (11), an annular groove (12), a first clamping seat (13), a convex block (14), a second clamping seat (15) and a buckle (16), the outer diameter of the concave ring (11) is matched with the steering gear shell (2), the concave ring (11) is provided with the annular groove (12), one side of the concave ring (11) is provided with the first clamping seat (13), the position, opposite to the first clamping seat (13), of the concave ring (11) is further provided with the convex block (14) matched with an inner groove (21) of the steering gear shell (2), and the convex block (14) is provided with the second clamping seat (15) and the buckle (16).

2. The sensor rotation-stopping positioning ring of a steering gear according to claim 1, characterized in that the positioning ring (1) is made of an anti-electromagnetic interference material.