FSAE-based carbon fiber steering column joint based on quick-release universal joint

Abstract

The utility model relates to the technical field, and discloses an FSAE-based carbon fiber steering column joint based on a quick release type universal joint, which comprises a joint boss, a joint is arranged at the top of the joint boss, a key nail groove and a ball groove are arranged on the surface of the joint, a joint rod is arranged at the bottom of the joint boss, and an anti-opening layer is arranged at the joint of the joint rod and the joint boss. A through hole is formed in the surface of the connector rod. According to the steering column structure, the connector can be matched with the quick-release universal joint to facilitate disassembly and assembly, clearance caused by interference fit stress can be avoided, the middle of the connector rod is hollowed out and can be matched with the carbon fiber tube, the steering column structure is made to be light, the connector is made of 7075 aluminum, the light weight purpose can be achieved while the strength requirement is met, and the structure is easy to machine, low in cost and high in practicability. The price is low, and the investment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of FSAE racing cars, in particular to a FSAE carbon fiber steering column joint based on a quick-release universal joint. Background Art

[0002] FSAE is a comprehensive engineering education competition for college students. In the Formula Student competition, steering is one of the most frequently worked mechanisms.

[0003] During the installation of the universal joint and the steering column, the interference fit of the universal joint and the steering column that is prone to steering wheel clearance or the expensive, bulky and difficult to process spline fit currently proposed on the market have the problems of large installation clearance, complicated processing, expensiveness and bulkiness. Therefore, how to design a structure that is easy to disassemble and replace while being lightweight and does not produce large clearance when assembling the universal joint and the steering column has become an urgent problem to be solved. In view of the above problems, a FSAE carbon fiber steering column joint based on a quick-release universal joint is provided herein. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a FSAE carbon fiber steering column joint based on a quick-release universal joint, aiming to improve the problem of how to facilitate disassembly and replacement while being lightweight and assembling the universal joint and the steering column without generating a large clearance.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a FSAE based on a quick-release universal joint carbon fiber steering column joint, comprising a joint boss, a joint is installed on the top of the joint boss, a key pin groove and a ball groove are opened on the surface of the joint, a joint rod is installed on the bottom of the joint boss, an anti-opening layer is provided at the connection between the joint rod and the joint boss, and a through hole is opened on the surface of the joint rod;

[0006] As a further description of the above technical solution:

[0007] The key pin groove gap cooperates with the key pin in the quick-release universal joint to play a lateral limiting role.

[0008] As a further description of the above technical solution:

[0009] The ball groove cooperates with the locking ball in the quick-release universal joint to play a longitudinal limiting role.

[0010] As a further description of the above technical solution:

[0011] The center line of the key pin groove is perpendicular to the plane surrounded by the center line of the ball groove, and the center line of the through hole intersects the center line of the joint boss at right angles.

[0012] As a further description of the above technical solution:

[0013] The joint rod is bonded to the external carbon fiber tube and is fastened by plugging bolts.

[0014] As a further description of the above technical solution:

[0015] The anti-air layer is 1 mm thicker than the joint rod, and the middle of the joint rod is lightweight and hollow.

[0016] As a further description of the above technical solution:

[0017] The FSAE quick-release universal joint carbon fiber steering column joint material is 7075 aluminum.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the joint can be matched with a quick-release universal joint for easy disassembly and installation, and can avoid the clearance caused by the stress of interference fit. The middle of the joint rod is hollow and can be matched with a carbon fiber tube to make the steering column structure lightweight.

[0020] 2. The joint is made of 7075 aluminum, which can meet the strength and lightweight requirements at the same time. The structure is easy to process and has a low price, which reduces the investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of a FSAE based on a quick-release universal joint carbon fiber steering column joint proposed by the utility model;

[0022] Figure 2 A schematic diagram of a FSAE carbon fiber steering column joint based on a quick-release universal joint proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the installation of a FSAE based on a quick-release universal joint carbon fiber steering column joint proposed by the utility model;

[0024] Legend:

[0025] 1. Joint boss; 2. Joint; 3. Key groove; 4. Ball groove; 5. Joint rod; 6. Anti-opening layer; 7. Through hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-3 The utility model provides an embodiment: a FSAE quick-release universal joint carbon fiber steering column joint, comprising a joint boss 1, a joint 2 is installed on the top of the joint boss 1, a key pin groove 3 and a ball groove 4 are opened on the surface of the joint 2, a joint rod 5 is installed on the bottom of the joint boss 1, an anti-opening layer 6 is provided at the connection between the joint rod 5 and the joint boss 1, and a through hole 7 is opened on the surface of the joint rod 5;

[0028] The key nail groove 3 has a clearance that cooperates with the key nail in the quick-release universal joint to play a lateral limiting role.

[0029] The ball groove 4 cooperates with the locking ball in the quick-release universal joint to play a longitudinal limiting role.

[0030] The center line of the key pin groove 3 is perpendicular to the plane surrounded by the center line of the ball groove 4, and the center line of the through hole 7 intersects the center line of the joint boss 1 perpendicularly.

[0031] The joint rod 5 is bonded to the external carbon fiber tube and fastened by plugging bolts.

[0032] The anti-vacuum layer 4 is 1 mm thicker than the joint rod 5, and the middle of the joint rod 5 is lightweight and hollow.

[0033] A FSAE based quick release universal joint carbon fiber steering column joint material is 7075 aluminum.

[0034] Working principle: The quick-release universal joint model used in this product is 03GR B14*25*59 keyway type. This model is characterized by a single-section universal joint with quick locking and detachable. When in use, the key nail groove 3 can be loosely matched with the key nail in the quick-release universal joint to play a lateral limiting role, and the ball groove 4 can be matched with the locking ball in the quick-release universal joint to play a longitudinal limiting role. The joint rod 5 is bonded to the carbon fiber tube with DP460 epoxy resin glue and fastened with plug bolts. When disassembling, the locking ball is disengaged by moving the locking sleeve of the quick-release universal joint. At this time, the longitudinal limiting effect disappears and the joint can be disassembled.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A FSAE quick-release universal joint carbon fiber steering column joint, comprising a joint boss (1), characterized in that: A joint (2) is installed on the top of the joint boss (1), a key groove (3) and a ball groove (4) are provided on the surface of the joint (2), a joint rod (5) is installed on the bottom of the joint boss (1), an anti-opening layer (6) is provided at the connection between the joint rod (5) and the joint boss (1), and a through hole (7) is provided on the surface of the joint rod (5).

2. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The key pin groove (3) is clearance-matched with the key pin in the quick-release universal joint to play a lateral limiting role.

3. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The ball groove (4) cooperates with the locking ball in the quick-release universal joint to play a longitudinal limiting role.

4. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The center line of the key pin groove (3) is perpendicular to the plane formed by the center line of the ball groove (4), and the center line of the through hole (7) intersects the center line of the joint boss (1) at right angles.

5. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The joint rod (5) is bonded to the external carbon fiber tube and fastened by plugging bolts.

6. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The anti-vacuum layer (6) is 1 mm thicker than the joint rod (5), and the middle of the joint rod (5) is lightweight and hollow.

7. The FSAE quick-release universal joint carbon fiber steering column joint according to claim 1, characterized in that: The FSAE quick-release universal joint carbon fiber steering column joint material is 7075 aluminum.

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