CN217904150U - Motor fixing structure of electric drive bridge - Google Patents

Abstract

The utility model discloses a motor fixing structure of an electrically driven bridge, which relates to the technical field of automobile accessories and comprises an electrically driven bridge body, a main speed reducer arranged on the electrically driven bridge body and a motor connected to the main speed reducer, wherein a detachable bracket is also arranged between the outer peripheral wall of the motor and the side wall at one end of the electrically driven bridge body; the periphery wall of motor is equipped with a plurality of projections, the wherein one end setting of projection is at the rear end face of motor, and the other one end of projection extends to the main reducer direction, the support is half arc, the inside wall of this support be equipped with a plurality of with the corresponding recess of projection, the lateral wall of support still are equipped with first portion of bending, first portion of bending pass through the connecting piece with electricity drives the bridge body one end lateral wall and connects. The utility model discloses a set up the arc support on the periphery wall of motor, can carry out stable being connected with motor rear end and the bridge body that drives of electricity, also can prevent simultaneously that leg joint from breaking occur.

Description

Motor fixing structure of electric drive bridge

Technical Field

The utility model relates to the technical field of auto-parts, in particular to motor fixed knot who drives bridge constructs.

Background

In recent years, with the development of science and technology and the improvement of environmental awareness of people, new energy automobiles gradually become the development trend of the future automobile industry.

The new energy automobile mainly comprises a power supply system, an electric drive system and an auxiliary system, wherein the electric drive system can be called as the heart of the new energy automobile, and an electric drive bridge is an indispensable part in the electric drive system.

The structure of the existing electric drive bridge is composed of a motor, a main speed reducer, a differential mechanism, a wheel transmission device and an electric drive bridge body, wherein the motor is connected with the main speed reducer on the electric drive bridge body through a front end face with an output shaft, and the rear end of the motor which is suspended in the air is connected with the electric drive bridge body through a bracket, but the existing bracket also has the following problems in use: 1. because the support only can be connected with the rear end face of the motor usually, only the bolt bears the falling force of the motor at the joint of the support, and after the support is used for a period of time, the bolt can be abraded with the support, and the joint of the support can be seriously broken. 2. The connecting point of the existing support and the motor is unreasonable in arrangement, the rear end of the motor is connected with the electric drive bridge body, the stability of the motor is poor, and the motor can still shake when a vehicle runs on an unstable road section.

Disclosure of Invention

The utility model provides a motor fixed knot of bridge that drives electricity constructs, aim at solve the junction of current support and easily take place the fracture and can not make motor rear end and drive the problem of being connected steadily between the bridge that drives electricity.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a motor fixing structure of an electric drive bridge comprises an electric drive bridge body, a main speed reducer arranged on the electric drive bridge body and a motor connected to the main speed reducer, wherein a detachable support is further arranged between the outer peripheral wall of the motor and the side wall of one end of the electric drive bridge body; the periphery wall of the motor is provided with a plurality of convex columns, one end of each convex column is arranged on the rear end face of the motor, the other end of each convex column extends towards the main speed reducer, the support is semi-arc-shaped, the inner side wall of the support is provided with a plurality of grooves corresponding to the convex columns, the outer side wall of the support is further provided with a first bending portion, and the first bending portion is connected with the side wall of one end of the electric drive bridge body through a connecting piece.

Furthermore, the convex column is semicircular, a first connecting hole is formed in the convex column, one end of the first connecting hole is located on the rear end face of the motor, and the other end of the first connecting hole extends into the main speed reducer towards the front end face of the motor; and a long bolt used for detachably connecting the motor and the main speed reducer is arranged in the first connecting hole in a penetrating manner.

Furthermore, the bracket is provided with a plurality of connecting pieces used for locking the bracket on the motor.

Furthermore, a mounting seat is fixedly arranged on the side wall of one end of the electric drive bridge body, and a mounting hole is formed in the mounting seat; the first bending part is L-shaped, a third connecting hole corresponding to the mounting hole is further formed in the first bending part, and the first bending part is detachably connected with the mounting seat through the connecting piece penetrating through the third connecting hole.

Further, the connecting piece is a bolt.

Further, a cushion pad is arranged between the mounting seat and the first bending part, and the cushion pad is made of rubber or polyurethane.

Furthermore, a boss is arranged at the bottom of the mounting seat in an extending manner towards the first bending part, and the first bending part is placed on the boss.

Furthermore, the bracket is integrally formed by punching.

From the above description to the structure of the present invention, the present invention has the following advantages:

one of which, the utility model discloses a set up the arc support between the bridge body of electricity driving and motor periphery wall, the inside wall of arc support is equipped with a plurality of recesses, the periphery wall of motor still is equipped with a plurality ofly and the projection of recess to the adaptation, the projection encircles and arranges on the periphery wall of motor, the arc support just can wear to establish on the periphery wall of motor from the rear end face of motor like this, then fix the support on the periphery wall of motor through the bolt again, the lateral wall of arc support still is equipped with first bending portion, this first bending portion passes through the bolt and is connected with the mount pad that sets up on the bridge body one end lateral wall of electricity driving, through such setting, can be connected the unsettled rear end of motor and the bridge body of electricity driving, and the support is connected this kind of structure at the motor periphery wall for the arc, the stress point of current support has been changed, only the bolt bears the power that the motor fell down originally and changes into the support atress, the bolt only bears the power of a small part, it is longer to make the more durable life-span of support, and also higher with the stability of being connected with the motor, the difficult production is rocked.

Two, the utility model discloses still be equipped with first connecting hole in the projection on the motor periphery wall, the one end of this first connecting hole is located the rear end face of motor, and one end extends and runs through the motor to the final drive ware direction in addition, can dismantle the motor with final drive ware through wearing to establish the bolt in first connecting hole and be connected, and this kind of structure has not only strengthened being connected of motor and final drive ware, has still further improved the stability of motor.

Third, the utility model discloses still be equipped with the blotter between first portion of bending and mount pad, the preferred rubber or polyurethane of material of blotter can play the effect of shock attenuation to avoid possible earthquakes, has avoided the vibration of the bridge body of electricity to drive to take place to be correlated with the motor.

And fourthly, the utility model discloses the mount pad bottom still extends to first portion of bending direction and is equipped with the boss, has placed first portion of bending on the boss, and such setting can further reduce the atress of junction bolt between first portion of bending and the mount pad, prevents that the junction between first portion of bending and the mount pad from breaking.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the bracket of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a schematic structural view of fig. 3 with the stent removed.

Fig. 5 is a schematic structural diagram of the bracket of the present invention.

Fig. 6 is a right side view of the bracket of the present invention.

Fig. 7 is a schematic structural view of the installation seat with the cushion pad.

Fig. 8 is a schematic structural view of the mounting seat with an additional boss.

Reference numerals: 10-electrically driven bridge; 11-a mounting seat; 111-mounting holes; 12-a cushion pad; 13-a boss; 20-a main reducer; 30-a motor; 31-a convex column; 311-first connection hole; 312-long bolt; 32-second connection hole; 40-a scaffold; 41-a first bend; 411-third connection hole; 42-a groove; 43-a fourth connection hole; 50-bolt.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a motor fixing structure of an electrically-driven bridge, including an electrically-driven bridge 10, a main reducer 20 and a motor 30 connected to the main reducer 20 are disposed at the middle of the electrically-driven bridge 10, an output shaft is disposed at the front end of the motor 30, the output shaft is connected to the main reducer 20, a support 40 is further disposed between the rear end of the motor 30 and the electrically-driven bridge 10, the support 40 is used for connecting the suspended rear end of the motor 30 to the electrically-driven bridge 10, and in order to ensure the strength of the support 40, the support 40 is preferably formed by integral stamping.

Referring to fig. 1 and fig. 2, a mounting seat 11 is further fixedly disposed on a side wall of the electric drive axle 10 near the rear end face of the motor 30, and at least one mounting hole 111 is disposed on the mounting seat 11, in this embodiment, the number of the mounting holes 111 is two.

Referring to fig. 1 to 5, a plurality of protruding columns 31 are circumferentially arranged on the outer peripheral wall of the motor 30, each protruding column 31 is a half arc, one end of each half arc protruding column 31 is located on the rear end face of the motor 30, the other end of each half arc protruding column 31 extends into the main speed reducer 20 towards the front end face of the motor 30, a first connection hole 311 is further formed in each half arc protruding column 31, one end of each first connection hole 311 is located on the rear end face of the motor 30, the other end of each first connection hole extends towards the main speed reducer 20 and penetrates through the motor 30, the motor 30 and the main speed reducer 20 can be detachably connected by penetrating a long bolt 312 into each first connection hole 311, by means of the structure, connection between the motor 30 and the main speed reducer 20 is enhanced, stability of the motor 30 is further improved, when the high-performance large-diameter motor 30 is adopted, an installation space for the bolt 50 does not need to be additionally reserved, so that a front end cover of the motor 30 is consistent with the end of the main speed reducer 20, at least one second connection hole 32 is further formed between the protruding columns 31 on the outer peripheral wall of the motor 30, and the bottom of the motor 30.

Referring to fig. 1 to 6, the bracket 40 is semi-arc-shaped, the inner side wall of the semi-arc-shaped bracket 40 is provided with a plurality of grooves 42 corresponding to the semi-arc-shaped protruding columns 31, and the grooves 42 are also semi-arc-shaped, so that when the bracket 40 is installed, the bracket 40 can be inserted from the rear end surface of the motor 30; the bracket 40 is further provided with a first bending portion 41 and a fourth connecting hole 43, the first bending portion 41 is L-shaped and is disposed on the outer side wall of the bracket 40, the first bending portion 41 is further provided with a third connecting hole 411 corresponding to the mounting hole 111, and the first bending portion 411 and the mounting seat 11 can be detachably connected by inserting a bolt 50 into the third connecting hole 411.

Referring to fig. 1 to 6, the bracket 40 is provided with a plurality of connecting members for locking the bracket 40 to the motor 30, the connecting members are bolts 50, the number of the fourth connecting holes 43 is two, the fourth connecting holes 43 correspond to the second connecting holes 32, the bracket 40 can be detachably fixed to the outer circumferential wall of the motor 30 by inserting the bolts 50, by providing such a structure, the force originally applied by the bolts 50 to bear the dropping of the motor 30 is changed into the force applied by the bracket 40, and the bolts 50 bear only a small amount of force, so that the service life of the bracket 40 is longer, and the semi-arc bracket 40 is wrapped on the outer circumferential wall of the motor 30, so that the stability of the bracket 40 and the motor 30 is higher, and the motor 30 is not easy to shake during the driving of the vehicle.

The present embodiment also includes other embodiments in which the shape of the semi-arc bracket 40 is changed to the circular bracket 40, so that the connection between the bracket 40 and the motor 30 is more stable.

Referring to fig. 7, in order to reduce and stabilize the vibration of the motor 30 during the vehicle running, a cushion 12 may be disposed between the first bending portion 41 and the mounting seat 11, and the cushion 12 may be made of rubber or polyurethane, so as to reduce the vibration and avoid the vibration of the motor 30 being related to the electric drive axle 10.

Referring to fig. 8, in order to reduce the force applied to the joint between the first bending portion 41 of the bracket 40 and the mounting seat 11, the boss 13 is further extended from the bottom of the mounting seat 11 toward the first bending portion 41, and the first bending portion 41 is placed on the boss 13, so that the stress applied to the bolt 50 at the joint between the first bending portion 41 and the mounting seat 11 can be further reduced, the joint between the bracket 40 and the mounting seat 11 is prevented from being broken, and the service life of the bracket 40 is prolonged.

In the present embodiment, the bracket 40 is preferably used for a transaxle of a 3.5-ton to 6-ton class vehicle type.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (8)

1. The utility model provides a motor fixed knot of bridge that drives electricity constructs, includes the bridge body that drives electricity, sets up final drive unit and the motor of connection on final drive unit on the bridge body that drives electricity, its characterized in that: a detachable support is further arranged between the outer peripheral wall of the motor and the side wall of one end of the electric drive bridge body; the periphery wall of motor is equipped with a plurality of projections, the wherein one end setting of projection is at the rear end face of motor, and the other one end of projection extends to the main reducer direction, the support is half arc, the inside wall of this support be equipped with a plurality of with the corresponding recess of projection, the lateral wall of support still are equipped with first portion of bending, first portion of bending pass through the connecting piece with electricity drives the bridge body one end lateral wall and connects.

2. The motor fixing structure of the electric drive bridge according to claim 1, characterized in that: the convex column is semicircular, a first connecting hole is formed in the convex column, one end of the first connecting hole is located on the rear end face of the motor, and the other end of the first connecting hole extends into the main speed reducer towards the front end face of the motor; and a long bolt used for detachably connecting the motor and the main speed reducer is arranged in the first connecting hole in a penetrating manner.

3. The motor fixing structure of the electric drive bridge according to claim 1, characterized in that: the bracket is provided with a plurality of connecting pieces used for locking the bracket on the motor.

4. The motor fixing structure of the electric drive bridge according to claim 1, characterized in that: the side wall of one end of the electrically-driven bridge body is fixedly provided with a mounting seat, and the mounting seat is provided with a mounting hole; the first bending portion is L-shaped, third connecting holes corresponding to the mounting holes are further formed in the first bending portion, and the first bending portion is detachably connected with the mounting seat through the connecting pieces penetrating through the third connecting holes.

5. The motor fixing structure of the electric drive bridge according to claim 3 or 4, characterized in that: the connecting piece is a bolt.

6. The motor fixing structure of the electric drive bridge according to claim 4, characterized in that: and a buffer cushion is further arranged between the mounting seat and the first bending part, and the buffer cushion is made of rubber or polyurethane.

7. The motor fixing structure of the electric drive bridge according to claim 4, characterized in that: the bottom of mount pad extends to first bending portion direction and is equipped with the boss, first bending portion places on the boss.

8. The motor fixing structure of the electric drive bridge according to claim 1, characterized in that: the support is formed by integral punching.

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