CN212195631U

CN212195631U - Electric power steering gear box

Info

Publication number: CN212195631U
Application number: CN202020903844.8U
Authority: CN
Inventors: 江兆淦; 胡建雄
Original assignee: Xiamen Lianhengjiulong New Energy Technology Co ltd
Current assignee: Xiamen Lianhengjiulong New Energy Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-22
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses an electric power steering gear box, main tank body and motor mount pad including interconnect, the installation end of motor mount pad passes through bolt fastening driving motor, the installation end is equipped with supplementary coupling assembling, and this supplementary coupling assembling includes half hoop, screwing lid and spring, half hoop quantity forms complete hoop body when two and are closed, and this complete hoop body staple bolt is peripheral in driving motor, half hoop forms two pairs of semi-thread axles at the radial extension of closed end, forms a complete screw thread axle when this semi-thread axle is closed, screwing the lid and being equipped with a locking hole and through this locking hole threaded connection in complete screw thread axle, spring one end is connected and is being screwed and cover, the other end with the installation end is connected. The utility model has the advantages of simple and reasonable overall structure, simple to operate has effectively promoted driving motor's installation stability, fine satisfied the user demand of electric power steering to the box.

Description

Electric power steering gear box

Technical Field

The utility model relates to an electronic power assisted steering system technical field of car, concretely relates to electric power assisted steering ware box.

Background

Electric Power Steering (EPS) is an Electronic Power Steering (electric Power Steering) which uses Power generated by an electric motor to assist a driver in Power Steering. The EPS is constructed substantially similarly from vehicle to vehicle, although the structural components are different. EPS is divided into: a column assistance type (C-EPS), a pinion assistance type (P-EPS), a double pinion type (D-EPS), and a ball screw type (APA 2-EPS); the electric power steering gear box body (C-EPS) is connected with a vehicle body through a shell, a torque sensor, a vehicle speed sensor, a motor, a speed reducing mechanism, an Electronic Control Unit (ECU) and the like of a C-EPS steering system are all arranged in the box body, and an adapter plate is used for connecting an EPS steering column (shell) with a whole vehicle pipe beam through screws, so that the EPS steering column (shell) and the whole vehicle pipe beam are fixed together through connecting pieces.

The box mainly includes the motor mount pad of installation motor and the main tank body of installation drive disk assembly, and the motor mainly passes through bolted connection with the motor mount pad, because the vibrations of motor during operation self just can shake along with the automobile body is synchronous, and after a period, it is not hard up easily with being connected of motor mount pad, influences electric power steering system's normal work.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an electric power steering gear box solves the problem that the motor is easy to be not hard up with the motor mount pad among the current electric power steering system at least, has the advantage that facilitates the use, sound construction are stable.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an electric power steering gear box, includes interconnect's main tank body and motor mount pad, the installation end of motor mount pad passes through bolt fastening driving motor, the installation end is equipped with auxiliary connection subassembly, and this auxiliary connection subassembly includes half hoop, screwing cover and spring, half hoop quantity forms complete hoop body when two and closure, and this complete hoop body staple bolt is peripheral in driving motor, half hoop forms two pairs of half threaded shafts at the radial extension of closure end, forms a complete threaded shaft when this half threaded shaft is closed, screwing the cover and being equipped with a locking hole and through this locking hole threaded connection on complete threaded shaft, spring one end is connected and is being screwed and cover, the other end with the installation end is connected.

The spring fastening cover is characterized in that a shaft hole communicated with the locking hole is formed in the bottom of the screwing cover, a connecting shaft is arranged in the shaft hole, one end of the connecting shaft extends into the locking hole and is connected with a limiting piece, the aperture of the limiting piece is larger than that of the shaft hole, the other end of the connecting shaft extends out of the shaft hole and is connected with a connecting ring, and the connecting ring is connected with one end of the spring.

So set up, when the spring passed through the go-between pulling and screwed the lid, but connecting axle adaptability rotates and caters to spring tension direction to avoided the lid of screwing to loosen the direction rotation because of receiving the spring force effect, promoted and screwed lid and screw spindle complex fastness and stability.

Further, the connecting ring is movably arranged on the connecting shaft in a penetrating way.

So set up, the go-between can rotate relative to the connecting axle, makes things convenient for the go-between to adapt to spring force adjustment direction, further avoids the lid of screwing to unscrew.

Further, the limiting pieces and the connecting shaft are welded or integrally formed.

So set up, improve the joint strength of connecting axle and spacing piece.

Further, a spring sheath is arranged outside the spring.

So set up, spring sheath protection spring corrosion, increase of service life.

And further setting, the end surface of the mounting end extends to form a connecting lug, and the connecting lug is provided with an ear hanging hole connected with the spring.

So set up, the spring can realize high-speed joint, simple to operate through the hangers hole.

Further, the installation end face of the main box body is provided with an annular bulge, and bolt holes and rib pressing structures are arranged on the annular bulge at intervals.

So set up, the main tank body further promotes the fastness of connection through annular arch on the basis of traditional bolt installation, guarantees the structural strength of junction through pressing the muscle structure simultaneously.

(III) advantageous effects

Compared with the prior art, the utility model provides a pair of electric power steering gear box possesses following beneficial effect:

the utility model discloses an electric power steering gear box is at the installation end installation auxiliary connection subassembly of motor mount pad and is connected driving motor, wherein, half hoop staple bolt of each other on motor housing, and through a locking of screwing and fix, spring coupling keeps tensile state between screwing lid and motor mount pad, pulling driving motor is by to the motor mount pad, offset partial vibrations effort through spring pulling force, reduce driving motor vibration amplitude by a wide margin, guarantee fastness and the permanence that driving motor and motor mount pad are connected. The utility model has the advantages of simple and reasonable overall structure, simple to operate has effectively promoted driving motor's installation stability, fine satisfied the user demand of electric power steering to the box.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic front view of a preferred embodiment of the present invention;

FIG. 3 is a schematic side view of a preferred embodiment of the present invention;

fig. 4 is the connection structure diagram of the auxiliary connection assembly of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention, fig. 2 is a schematic front view of the preferred embodiment of the present invention, fig. 3 is a schematic side view of the preferred embodiment of the present invention, and fig. 4 is a schematic connection structural diagram of an auxiliary connection assembly of the present invention.

The utility model provides a pair of electric power steering gear box, the main tank body 1 and the motor mount pad 2 including interconnect, the installation end 200 of motor mount pad 2 passes through bolt fastening driving motor a, installation end 200 is equipped with auxiliary connection subassembly 3, this auxiliary connection subassembly 3 includes half hoop 31, lid 32 and spring 33 screw, half hoop 31 quantity forms complete hoop 301 when two and closed, this complete hoop 301 staple bolt is peripheral in driving motor a, half hoop 31 forms two pairs of half threaded spindle 302 at the radial extension of closed end, form a complete threaded spindle 303 when this half threaded spindle 302 is closed, the lid 32 of screwing is equipped with a locking hole 304 and through this locking hole 304 threaded connection on complete threaded spindle 303, spring 33 one end is connected on the lid 32 of screwing, the other end is connected fixedly with installation end 200.

The bottom of the screwing cover 32 is provided with a shaft hole 305 communicated with the locking hole 304, a connecting shaft 306 is arranged in the shaft hole 305, one end of the connecting shaft 306 extends into the locking hole 304 and is connected with a limiting sheet 307, the aperture of the limiting sheet is larger than that of the shaft hole 305, the other end extends out of the shaft hole 305 and is connected with a connecting ring 308, the connecting ring 308 is connected with one end of the spring 33, when the spring 33 pulls the screwing cover 32 through the connecting ring 308, the connecting shaft 306 can adaptively rotate to meet the tension direction of the spring 33, thereby preventing the screwing cover 32 from rotating towards the loosening direction due to the action of the spring 33 force, and improving the firmness and stability of the screwing cover 32 and the threaded shaft matching.

The connecting ring 308 is movably arranged on the connecting shaft 306 in a penetrating way, and the connecting ring 308 can rotate relative to the connecting shaft 306, so that the direction of the connecting ring 308 can be adjusted conveniently to adapt to the force of the spring 33, and the screwing cover 32 is further prevented from being unscrewed.

The limiting sheet and the connecting shaft 306 are welded or integrally formed, so that the connecting strength of the connecting shaft 306 and the limiting sheet is improved.

A spring sheath 309 is arranged outside the spring 33, and the spring sheath 309 protects the spring 33 from being rusted, so that the service life is prolonged.

The installation end 200 extends on the terminal surface and forms a connection lug 201, a hanging lug hole connected with the spring 33 is arranged on the connection lug 201, and the spring 33 can realize quick connection and convenient installation through the hanging lug hole.

The main tank body 1 installation end 200 face is equipped with annular protrusion 101, is equipped with the interval on this annular protrusion 101 and sets up bolt hole 102 and ribbing structure 103, and main tank body 1 further promotes the fastness of connection through bolted connection through annular protrusion 101 on the basis of traditional bolt installation, guarantees the structural strength of junction through ribbing structure 103 simultaneously.

The utility model discloses an electric power steering gear box during installation and use, driving motor a is connected to the installation end 200 installation auxiliary connection subassembly 3 of motor mount pad 2, wherein, half hoop 31 staple bolt of each other on motor housing, and fix through the piece locking of screwing, spring 33 is connected and is kept tensile state between screwing lid 32 and motor mount pad 2, pulling driving motor a is by to motor mount pad 2, offset partial vibrations effort through spring 33 pulling force, reduce driving motor a vibration amplitude by a wide margin, guarantee the fastness and the permanence that driving motor a and motor mount pad 2 are connected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric power steering gear box, includes interconnect's main tank body and motor mount pad, the installation end of motor mount pad passes through bolt fastening driving motor, its characterized in that, the installation end is equipped with supplementary coupling assembling, and this supplementary coupling assembling includes half hoop, screwing cover and spring, half hoop quantity forms complete hoop body for two and when closed, and this complete hoop body staple bolt is peripheral in driving motor, half hoop forms two pairs of half threaded shafts at the radial extension of closed end, forms a complete threaded shaft when this half threaded shaft is closed, screwing the cover and being equipped with a locking hole and through this locking hole threaded connection in complete threaded shaft, spring one end is connected on screwing the lid, the other end with the installation end is connected.

2. The electric power steering gear box according to claim 1, wherein the bottom of the screwing cover is provided with a shaft hole communicated with the locking hole, a connecting shaft is arranged in the shaft hole, one end of the connecting shaft extends into the locking hole and is connected with a limiting piece, the diameter of the limiting piece is larger than that of the shaft hole, the other end of the connecting shaft extends out of the shaft hole and is connected with a connecting ring, and the connecting ring is connected with one end of the spring.

3. The electric power steering gear box body according to claim 2, wherein the connecting ring is movably arranged on the connecting shaft in a penetrating way.

4. The electric power steering gear box according to claim 3, wherein the stopper piece is welded or integrally formed with the connecting shaft.

5. The electric power steering gear box of claim 1, wherein a spring sheath is provided outside the spring.

6. The electric power steering gear box according to claim 1, wherein the mounting end face is extended to form a connection lug, and the connection lug is provided with a lug hole connected with the spring.

7. The electric power steering gear box according to claim 1, wherein the main box mounting end surface is provided with an annular projection, and the annular projection is provided with bolt holes and a rib structure at intervals.