CN111439301A - Steering system support based on FSAE monocoque body - Google Patents

Abstract

The invention discloses a steering system support based on an FSAE single shell vehicle body, which comprises a vehicle body support and a connecting rod support, wherein the vehicle body support is connected with the connecting rod support in an inserting mode, the vehicle body support is connected with the single shell vehicle body, the connecting rod support is connected with a steering system, the vehicle body support comprises a bottom plate, two bosses are fixed on the bottom plate, the connecting rod support is of a cylindrical structure, a bulge is arranged on the outer side of the cylindrical structure along the axial direction of the cylindrical structure, and the bosses are inserted on the bulge. The invention can avoid the influence of the monocoque body on the steering system to the maximum extent, and the influence is concentrated on the bracket and finally eliminated, so that the steering system is easy to install, the reworking of parts is avoided, and the loss of manpower and financial resources is avoided; the problem of because of the monocoque automobile body error leads to the steering system installation difficulty is solved, made things convenient for steering system's installation and fixed to a very big extent, dwindled installation time to within half an hour.

Description

Steering system bracket based on FSAE monocoque body

technical field

The invention relates to a bracket, in particular to a steering system bracket based on an FSAE monocoque body.

Background technique

In the development process of the Formula Student series, due to the pursuit of lightweight vehicles and high-performance structure of the frame, the monocoque technology appeared. The monocoque adopts a composite material structure, and the carbon cloth honeycomb aluminum sandwich structure is used as the body structure of the Formula Student car to replace the frame structure, which increases the torsional rigidity of the body and reduces the weight of the frame to a certain extent. Monocoque construction is the technology of interest to most teams today.

In previous frame construction designs, the steering system was attached to the front ring of the frame via a bracket. In the frame production process, in order to ensure the accuracy of the finished frame, the whole vehicle fixture will be made in advance to ensure that the position of the front ring is accurate and will not have too much impact on the steering system. However, in the monocoque body structure, due to the influence of various aspects such as prepreg, adhesive film, honeycomb aluminum and the production process, there will be certain errors in the monocoque product and design. In the previous steering system design process, most teams would directly design the bracket angle according to the steering system design angle, but the geometric relationship of the steering system could not be changed, that is, the entire system angle and structure could not be changed. Above, and according to the strength requirements, corresponding embedded parts are required inside the monocoque, so the bracket point cannot be changed, which will directly lead to the inability to install the traditional rod bracket.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of the present invention is to provide a steering system bracket based on the FSAE monocoque body to solve the problem of difficult assembly of the steering system.

Technical solution: The present invention includes a body bracket and a connecting rod bracket, the body bracket and the connecting rod bracket are connected by plugging, wherein the body bracket is connected with the monocoque body, and the connecting rod bracket is connected with the steering system. The vehicle body bracket includes a bottom plate, and two bosses are fixed on the bottom plate. The connecting rod bracket adopts a cylindrical structure, and the outer side of the cylindrical structure is provided with a protrusion along its axis direction, and the boss is inserted into the convex platform. Get up.

The connecting rod bracket is sleeved on the connecting rod of the steering system.

A deep groove ball bearing is arranged between the connecting rod bracket and the connecting rod to ensure the normal function of the steering system.

The length of the cylindrical structure of the connecting rod bracket is at least 30 mm.

Ribs are arranged between the cylindrical structure and the protrusion as a reinforcing structure.

The boss adopts a right-angled trapezoid structure.

A transition fit is adopted between the boss and the protrusion.

The bottom plate is provided with bolt holes, and the body support is connected with the body through bolts.

Both the body support and the connecting rod support are made of aluminum alloy.

Beneficial effects: the present invention can avoid the influence of the monocoque body on the steering system to the greatest extent, concentrate the influence on the bracket and finally eliminate it, so that the steering system is easy to install, avoids the reprocessing of parts, and avoids the loss of manpower and financial resources; It solves the problem of difficult installation of the steering system due to the error of the monocoque body, greatly facilitates the installation and fixation of the steering system, and reduces the installation time to less than half an hour.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a schematic diagram of the present invention being installed on a steering system.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 1 and FIG. 2 , the present invention includes a body bracket 1 and a connecting rod bracket 2, and the body bracket 1 and the connecting rod bracket 2 are connected in a plug-in manner, wherein the body bracket 1 is connected with the monocoque body, and the connecting rod The bracket 2 is connected with the steering system. The body support 1 includes a base plate, and four bolt holes are arranged on the base plate. The body support 1 is connected with the body through bolts, and two thin sheet-type right-angled trapezoidal bosses are fixed on the bottom surface of the base plate. The connecting rod bracket 2 adopts a cylindrical structure, the length of the cylindrical structure is at least 30mm, and is sleeved on the connecting rod 3 of the steering system, and two deep groove balls are arranged between the connecting rod bracket 2 and the connecting rod 3 Bearings to ensure the normal function of the steering system. The outer side of the cylindrical structure is provided with a protrusion along its axis direction, a rib is provided between the cylindrical structure and the protrusion as a reinforcing structure, and two trapezoidal bosses are inserted on the protrusion, and between the boss and the protrusion Use a transition fit. Both the body bracket 1 and the connecting rod bracket 2 are made of aluminum alloy.

When in use, connect connecting rod bracket 2 and connecting rod 3 through deep groove ball bearings, and use clamps at both ends of connecting rod bracket 2 to fix it. After connecting and fixing, connect it with the connecting rod bracket 2 to determine the final position. After the steering system is assembled, assemble the whole system to the racing car. At this time, the body bracket 1 and the connecting rod bracket 2 have a relative position. And the geometric relationship of the steering system is the same as the design value. For the best position, spot-weld the body bracket 1 and the connecting rod bracket 2, then remove the whole system, and fully weld the body bracket 1 and the connecting rod bracket 2 to ensure the strength.

Claims (9)

1. A steering system support based on FSAE monocoque body, characterized in that it comprises a body support (1) and a connecting rod support (2), and the described body support (1) and the connecting rod support (2) adopt a plug-in connection. The body bracket (1) is connected with the monocoque body, and the connecting rod bracket (2) is connected with the steering system. The body bracket (1) includes a bottom plate, and two bosses are fixed on the bottom plate. The connecting rod bracket (2) adopts a cylindrical structure, the outer side of the cylindrical structure is provided with a protrusion along its axis direction, and the protrusion is inserted on the protrusion. 2 . The steering system bracket based on the FSAE monocoque body according to claim 1 , wherein the connecting rod bracket ( 2 ) is sleeved on the connecting rod ( 3 ) of the steering system. 3 . 3. The steering system bracket based on the FSAE monocoque body according to claim 1 or 2, wherein a deep groove ball bearing is provided between the connecting rod bracket (2) and the connecting rod (3). 4. The steering system bracket based on the FSAE monocoque body according to claim 3, characterized in that, the length of the cylindrical structure of the connecting rod bracket (2) is at least 30 mm. 5 . The steering system bracket based on the FSAE monocoque body according to claim 1 , wherein ribs are provided between the cylindrical structure and the protrusion. 6 . 6 . The steering system bracket based on the FSAE monocoque body according to claim 1 , wherein the boss adopts a right-angled trapezoid structure. 7 . 7 . The steering system bracket based on the FSAE monocoque body according to claim 1 or 6 , wherein transition fit is adopted between the boss and the boss. 8 . 8 . The steering system bracket based on the FSAE monocoque body according to claim 1 , wherein the bottom plate is provided with bolt holes, and the body bracket ( 1 ) is connected to the vehicle body through bolts. 9 . 9 . The steering system bracket based on the FSAE monocoque body according to claim 1 , wherein the body bracket ( 1 ) and the connecting rod bracket ( 2 ) are both made of aluminum alloy. 10 .

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