Accurate-positioning and high-sealing sensor cover assembly for steering engine

Abstract

The utility model discloses a fine-positioning and high-sealing sensor cover assembly for a steering engine, which relates to the technical field of sensor covers and comprises an external frame and an assembly mechanism arranged in the external frame. The assembly mechanism comprises a supporting structure integrally formed with the external frame in an injection molding mode, a bearing structure connected with the supporting structure in a press fit mode and an oil seal assembly arranged above the bearing structure. A sealing cover is arranged at the upper end of the outer frame in a sealing mode, and a supporting structure, a bearing structure and an oil seal assembly are used in cooperation, so that the movement stability of a shaft is enhanced, the load and impact of a sensor cover assembly can be improved, the shaft is kept stable during high-speed rotation, the noise and vibration level is lowered, and the abrasion and leakage risk of an oil seal is lowered; the sealing performance between the shaft and the oil seal assembly is improved, and the service life of the sensor cover assembly is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of sensor cover technology, specifically a steering gear sensor cover assembly with precise positioning and high sealing. Background Technology

[0002] The steering gear is one of the key components of an automotive steering system. Its main function is to transmit the power from the driver's steering wheel to the wheels, thereby achieving vehicle steering. The main function of the sensor cover is to protect the sensor from external environmental factors such as dust, moisture, and chemicals, while ensuring the sensor can function properly. Sensor covers typically employ a sealed design to prevent external substances from entering the sensor. The steering gear sensor cover assembly is an important component of the sensor cover assembly. To ensure sealing and smooth shaft movement, and reduce customer complaints, it is necessary to develop a steering gear sensor cover assembly that can both guarantee the sealing function of the sensor cover assembly and support smooth shaft movement, thereby enhancing the functionality of the sensor cover.

[0003] Existing steering gear sensor cover assemblies have certain drawbacks. During use, friction and vibration between the shaft and the sensor cover can lead to wear and leakage of the oil seal assembly, reducing the sealing performance and service life of the sensor cover assembly and failing to meet people's needs. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a steering gear sensor cover assembly with precise positioning and high sealing.

[0005] A precision-positioning, high-sealing sensor cover assembly for a steering gear includes: an outer frame and an assembly mechanism disposed inside the outer frame; wherein, the assembly mechanism includes a support structure integrally injection-molded with the outer frame, a bearing structure press-fitted to the support structure, and an oil seal assembly disposed above the bearing structure; a sealing cover is sealed at the upper end of the outer frame, and the bearing structure is pressed into the support structure by tooling to protect the interior of the steering gear, enhance the smoothness of shaft movement, and improve the sealing performance between the shaft and the oil seal assembly.

[0006] As a further embodiment of this utility model: an O-groove is provided on the lower part of the outer wall of the outer frame, and an O-ring matching the outer frame is provided in the O-groove. The sealing cover and the O-ring cooperate with the plastic frame through their own structure to ensure the sealing performance of the overall product structure for the steering gear.

[0007] As a further embodiment of this utility model: a support member integrally injection molded with the external frame is provided above the O-groove, and two sets of metal bushings are detachably installed on the support member.

[0008] As a further embodiment of this utility model, the external frame is configured as a PBT+GF30 plastic skeleton.

[0009] As a further embodiment of this invention, the sealing cap is configured as an EPDM sealing cap.

[0010] As a further embodiment of this invention, the support structure is configured as a metal support ring.

[0011] As a further embodiment of this invention, the bearing structure is configured as a metal bearing.

[0012] As a further embodiment of this utility model: the inner and outer walls of the external frame are integrally injection molded with several sets of reinforcing members.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model enhances the smoothness of shaft movement by using an external frame and assembly mechanism, a support structure, a bearing structure and an oil seal assembly in combination, thereby increasing the load and impact of the sensor cover assembly, keeping the shaft stable when rotating at high speed, reducing noise and vibration levels, reducing wear and leakage risk of the oil seal, and improving the sealing between the shaft and the oil seal assembly and the service life of the sensor cover assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0016] Figure 2 This is a cross-sectional view of the sensor cover assembly in this utility model.

[0017] Figure 3 This is an exploded view of the sensor cover assembly in this utility model.

[0018] Figure 4 This is a top view of the sensor cover assembly in this utility model.

[0019] In the diagram: 1. External frame; 2. Sealing cover; 3. Support structure; 4. Bearing structure; 5. Oil seal assembly; 6. Metal bushing; 7. O-ring; 8. O-groove; 9. Support component; 10. Reinforcing component. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1

[0022] Please see Figure 1 - Figure 4 This application provides a precise positioning and high-sealing sensor cover assembly for a steering gear, comprising: an outer frame 1 and an assembly mechanism disposed inside the outer frame 1; wherein, the assembly mechanism includes a support structure 3 integrally injection molded with the outer frame 1, a bearing structure 4 press-fitted to the support structure 3, and an oil seal assembly 5 disposed above the bearing structure 4; a sealing cover 2 is provided at the upper end of the outer frame 1, and the bearing structure 4 is pressed into the support structure 3 by tooling to protect the interior of the steering gear, enhance the smoothness of shaft movement, and improve the sealing performance between the shaft and the oil seal assembly 5.

[0023] In this utility model, an O-groove 8 is provided on the lower part of the outer wall of the outer frame 1, and an O-ring 7 matching the outer frame 1 is provided in the O-groove 8.

[0024] The sealing cap 2 and O-ring 7 work together with the plastic frame through their own structure to ensure the overall sealing of the steering gear.

[0025] In this utility model, a support member 9 is provided above the O-groove 8, which is integrally injection molded with the outer frame 1. Two sets of metal bushings 6 are detachably installed on the support member 9, and bushing holes matching the metal bushings 6 are opened on the support member 9.

[0026] In this utility model, the external frame 1 is set as a PBT+GF30 plastic skeleton.

[0027] In this utility model, the sealing cap 2 is set as an EPDM sealing cap, and the cross-section of the sealing cap 2 has a running-shaped structure.

[0028] In this invention, the support structure 3 is configured as a metal support ring.

[0029] In this utility model, the bearing structure 4 is set as a metal bearing.

[0030] In this utility model, the inner and outer walls of the outer frame 1 are integrally injection molded and have several sets of reinforcing parts 10.

[0031] In summary, the bearing structure 4 is pressed into the support structure 3, the support structure 3 is integrally injection molded onto the PBT+GF30 plastic skeleton using a mold, the oil seal assembly 5 is installed onto the bearing structure 4, the O-ring 7 is installed into the O-groove 8, the metal bushing 6 is installed onto the support 9, and the EPDM sealing cap and the PBT+GF30 plastic skeleton are fixedly connected.

[0032] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A precise positioning and high-sealing sensor cover assembly for a steering gear, characterized in that, include: An external frame (1) and an assembly mechanism disposed inside the external frame (1); The assembly includes a support structure (3) integrally injection molded with the outer frame (1), a bearing structure (4) press-fitted with the support structure (3), and an oil seal assembly (5) disposed above the bearing structure (4). The upper end of the external frame (1) is sealed with a sealing cover (2).

2. The steering gear sensor cover assembly with precise positioning and high sealing as described in claim 1, characterized in that, The lower part of the outer wall of the outer frame (1) is provided with an O-groove (8), and an O-ring (7) matching the outer frame (1) is provided in the O-groove (8).

3. The steering gear sensor cover assembly with precise positioning and high sealing according to claim 2, characterized in that, Above the O-groove (8) is a support member (9) integrally injection molded with the outer frame (1), and two sets of metal bushings (6) are detachably installed on the support member (9).

4. The steering gear sensor cover assembly with precise positioning and high sealing as described in claim 1, characterized in that, The external frame (1) is set as a PBT+GF30 plastic skeleton.

5. A precise positioning and high-sealing steering gear sensor cover assembly according to claim 1, characterized in that, The sealing cap (2) is configured as an EPDM sealing cap.

6. The steering gear sensor cover assembly with precise positioning and high sealing according to claim 1, characterized in that, The support structure (3) is configured as a metal support ring.

7. A precise positioning and high-sealing steering gear sensor cover assembly according to claim 1, characterized in that, The bearing structure (4) is configured as a metal bearing.

8. A precise positioning and high-sealing steering gear sensor cover assembly according to claim 1, characterized in that, The inner and outer walls of the external frame (1) are integrally injection molded with several sets of reinforcing parts (10).

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