Bracket assembly for vehicle electric machine

Abstract

The utility model discloses a support assembly for a vehicle motor, which comprises a functional foot plate for connecting the motor and an axle housing, the functional foot plate is fixed on the axle housing, a strip-shaped hole perpendicular to the extension direction of the axle housing is arranged on the functional foot plate, and a connecting piece penetrates through the strip-shaped hole to be connected with the motor. The distance between the motor and the axle housing is determined; the problem that gaps are reserved after the motor is assembled on a vehicle can be solved, the motor is parallel to a main reducer assembly, the abnormal sound of the motor is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle motors, and particularly to a bracket assembly for a vehicle motor. Background Art

[0002] In the existing installation structure of a motor, the auxiliary support is composed of a second foot plate assembled on the motor and a first foot plate welded on the axle housing. The first foot plate and the second foot plate are bolted together, and the second foot plate and the motor are bolted together.

[0003] If there is an assembly gap between the first foot plate and the second foot plate, and the gap is forcibly tightened with bolts to eliminate it, the motor and the main reduction assembly will be non-parallel, the motor spline and the main reduction spline will be jammed, and abnormal noises will easily occur during operation.

[0004] Therefore, to solve the above problems, a bracket assembly for a vehicle motor is needed, which can overcome the problem of gap retention after the motor is assembled on the vehicle, make the motor and the main reduction assembly parallel, reduce the abnormal noise of the motor, and improve the product quality. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to overcome the defects in the prior art and provide a bracket assembly for a vehicle motor, which can overcome the problem of gap retention after the motor is assembled on the vehicle, keep the motor and the main reduction assembly in a parallel relationship all the time, reduce the abnormal noise of the motor, and improve the product quality.

[0006] The bracket assembly for a vehicle motor of the utility model includes a functional foot plate that connects the motor and the axle housing. The functional foot plate is fixed on the axle housing. The motor and the functional foot plate are fixed through a connecting piece. A strip-shaped hole perpendicular to the extending direction of the axle housing is opened on the functional foot plate. The connecting piece passes through the strip-shaped hole and is connected to the motor to determine the distance between the motor and the axle housing. This solution ensures that after the motor assembly is completed, the motor and the main reduction assembly are parallel by setting a single functional foot plate to reserve an activity gap at the assembly position and transferring the dimensional tolerance to the assembly node, overcoming the problem of gap retention after the motor is assembled on the vehicle, reducing the abnormal noise of the motor, and improving the product quality. Moreover, the use of a single functional foot plate does not require secondary assembly of the bracket, which can not only save assembly resources, but also ensure the structural strength of the bracket, and will not cause fatigue damage at the bracket assembly, reducing the generation of abnormal noise points and improving the product quality. The connecting piece is a bolt. By the combined use of the strip-shaped hole and the bolt, the distance between the motor and the axle housing can be adjusted and determined, making the motor and the main reduction assembly parallel and reducing the abnormal noise of the motor. And the design of the strip-shaped hole is more generalized and widely applicable.

[0007] Further, there are two strip-shaped holes, which are respectively arranged on the upper side and the lower side of the position where the functional foot plate is connected to the bridge shell. Correspondingly, there are also two bolts for assembling the motor on the functional foot plate; this is more conducive to the stable assembly of the motor on the bridge shell through the functional foot plate. At the same time, the stress on a single connection position is reduced, the connection reliability between the motor and the functional foot plate is improved, and abnormal noise is reduced.

[0008] Further, it also includes a connecting sleeve, and the connecting sleeve is sleeved on the connecting rod. More specifically, the connecting sleeve is sleeved on the screw rod of the bolt, and the connecting sleeve and the bolt are assembled in a one-to-one correspondence relationship. The connecting sleeve forms a support for the functional foot plate and the motor. The connecting sleeve in this solution selects any elastic sleeve in the prior art. The two ends in the length direction of the sleeve respectively support on the motor and the functional foot plate, playing a role of continuously pressing the two together and reducing the tremor abnormal noise at the connection between the motor and the functional foot plate.

[0009] Further, the functional foot plate is fixed on the bridge shell by welding, making the functional foot plate approximately integrally formed with the bridge shell, which can ensure a certain structural strength; the functional foot plate includes a bridge shell connection end, and the projection of the bridge shell connection end along the length direction of the bridge shell is in a "C" shape, and the projection of the bridge shell connection end perpendicular to the length direction of the bridge shell is in an "n" shape. That is, as shown in the figure, the open end of the "C" shape of this structure holds the bridge shell for welding, and the "n" shape structure not only has a larger connection surface, but also can form a structural cavity with the bridge shell, which is conducive to ensuring the structural strength and structural stability.

[0010] Further, the middle part of the back in the length direction of the bridge shell connection end protrudes towards the direction away from the open end of the "n" shape. This back is the closed side of the "n" shape of the bridge shell connection end opposite to the open end. The protruding structure is a rectangle with approximately the same radial dimension as the bridge shell. Its purpose is to provide a favorable stress dispersion area for the welding end face and to make the formed structural cavity continuous, so that the structural strength and structural reliability are better.

[0011] Further, the functional foot plate also includes a motor connection end integrally formed with the bridge shell connection end. The integrally formed functional foot plate solves the problem of abnormal noise at the splicing node of the current double foot plates in terms of structure, and the structural strength can meet the use requirements.

[0012] Further, the motor connection end extends from the back of the bridge shell connection end towards the direction away from the open end of the "n" shape. As shown in the figure, the motor connection end extends from the back near one of the pins of the "n" shape, approximately parallel to it towards the direction away from the open end of the "n" shape, and the motor connection end also bends towards the setting direction of the motor to form a connection section. This structure further ensures the structural strength of the motor connection end, especially the bending and torsion strength. The strip-shaped hole is opened on the connection section.

[0013] Further, an avoidance notch is provided on the connecting section. The provision of this avoidance notch enables the motor connection end to be assembled on the motor in a jaw-like shape, with the jaws spreading outwards, such that the configuration of the functional foot plate is roughly in the shape of butterfly wings, having better structural strength. Moreover, when this structure is connected to the motor and the axle housing, the overall structure is more compact, facilitating the reduction of the assembly space.

[0014] The beneficial effects of the present utility model are as follows: A bracket assembly for a vehicle motor disclosed by the present utility model transfers dimensional tolerances to the assembly nodes by setting a single functional foot plate with a reserved clearance at the assembly position, ensuring that after the motor assembly is completed, the motor is parallel to the main reduction assembly, overcoming the problem of clearance remaining after the motor is assembled on the vehicle, reducing motor abnormal noise, and improving product quality. Moreover, the use of a single functional foot plate eliminates the need for secondary assembly of the bracket, not only saving assembly resources but also ensuring the structural strength of the bracket, and preventing fatigue damage at the bracket assembly location, reducing the generation of abnormal noise points and improving product quality. The connecting member is a bolt, and the distance between the motor and the axle housing can be adjusted and determined through the cooperation of the slotted hole and the bolt, making the motor parallel to the main reduction assembly and reducing motor abnormal noise. Additionally, the design of the slotted hole is more generalized and widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic side view structural diagram of the present utility model;

[0018] Figure 3 is a schematic partial cross-sectional structural diagram of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the functional foot plate of the present utility model;

[0020] Figure 5 is a schematic front view structural diagram of the functional foot plate of the present utility model;

[0021] Figure 6 is a schematic side view structural diagram of the functional foot plate of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Figure 1The figure is a schematic structural diagram of the present utility model. As shown in the figure, the bracket assembly for a vehicle motor in this embodiment includes a functional foot plate 003 that connects the motor 001 and the axle housing 002. The functional foot plate 003 is fixed on the axle housing 002. The motor 001 and the functional foot plate 003 are fixed by a connecting member. A strip-shaped hole perpendicular to the extending direction of the axle housing 002 is formed on the functional foot plate 003. The connecting member passes through the strip-shaped hole and is connected to the motor 001 to determine the distance between the motor 001 and the axle housing 002. In this solution, by providing a single functional foot plate 003 and reserving an activity gap at the assembly position, the dimensional tolerance is transferred to the assembly node, ensuring that after the motor 001 assembly is completed, the motor 001 is parallel to the main reduction assembly, overcoming the problem of remaining gaps after the motor 001 is assembled on the vehicle, reducing the abnormal noise of the motor 001, and improving the product quality; moreover, the use of a single functional foot plate 003 does not require secondary assembly of the bracket, which can not only save assembly resources, but also ensure the structural strength of the bracket, and there will be no fatigue damage at the bracket assembly, reducing the generation of abnormal noise points and improving the product quality; the connecting member is a bolt, and the distance between the motor 001 and the axle housing 002 can be adjusted and determined through the cooperation of the strip-shaped hole and the bolt, making the motor 001 parallel to the main reduction assembly and reducing the abnormal noise of the motor 001; and the design of the strip-shaped hole is more generalized and widely applicable.

[0023] In this embodiment, there are two strip-shaped holes, and the two strip-shaped holes are respectively arranged on the upper side and the lower side of the position where the functional foot plate 003 connects the axle housing 002. More specifically, the strip-shaped holes are waist-shaped holes. Correspondingly, there are also two bolts for assembling the motor 001 on the functional foot plate 003. Through the cooperation of the waist-shaped holes and the bolts, the dimensional tolerance can be transferred to the connection part, with stronger universality, higher structural stability, and the structure can be set at a predetermined position, reducing the structural abnormal noise; the structure of the two groups of connection nodes is more conducive to the stable assembly of the motor 001 on the axle housing 002 through the functional foot plate 003, while reducing the stress at a single connection position, improving the connection reliability between the motor 001 and the functional foot plate 003, and reducing the abnormal noise.

[0024] In this embodiment, it further includes a connecting sleeve 1. The connecting sleeve is sleeved on the connecting rod. More specifically, the connecting sleeve 1 is sleeved on the screw rod of the bolt. The connecting sleeve 1 and the bolt are assembled in a one-to-one correspondence relationship. The connecting sleeve 1 forms a support for the functional foot plate 003 and the motor 001. The connecting sleeve 1 in this solution selects any elastic sleeve in the prior art. The two ends in the length direction of the sleeve respectively support on the motor 001 and the functional foot plate 003, playing a role of continuously pressing the two against each other and reducing the tremor abnormal noise at the connection between the motor 001 and the functional foot plate 003.

[0025] In this embodiment, the functional foot plate 003 is fixed to the axle housing 002 by welding, making the functional foot plate 003 approximately integrally formed with the axle housing 002, which can ensure a certain structural strength; the functional foot plate 003 includes a bridge housing connection end 2, and the projection of the bridge housing connection end 2 along the length direction of the axle housing 002 is "C"-shaped, and the projection of the bridge housing connection end 2 along the direction perpendicular to the length direction of the axle housing 002 is "n"-shaped. That is, as shown in the figure, the open end of the "C"-shaped structure holds and welds on the axle housing 002, and the "n"-shaped structure not only has a larger connection surface, but also can form a structural chamber with the axle housing 002, which is beneficial to ensuring structural strength and structural stability.

[0026] In this embodiment, the middle part of the back of the bridge housing connection end 2 in the length direction protrudes towards the direction away from the open end of the "n" shape. This back is the closed side of the "n" shape of the bridge housing connection end 2 opposite to the open end. The protruding structure is a rectangle with a radial dimension approximately the same as that of the axle housing 002. Its purpose is to provide a favorable stress dispersion area for the welding end face, and still make the formed structural chamber continuous, so that the structural strength and structural reliability are better.

[0027] In this embodiment, the functional foot plate 003 further includes a motor connection end 3 integrally formed with the bridge housing connection end 2. The integrally formed functional foot plate 003 solves the problem of abnormal noise at the joint of the current two-foot plates in terms of structure, and its structural strength can meet the use requirements.

[0028] In this embodiment, the motor connection end 3 extends from the back of the bridge housing connection end 2 towards the direction away from the open end of the "n" shape. As shown in the figure, the motor connection end 3 extends from the back of the functional foot plate 003 near one of the pins of the "n" shape, approximately parallel to it, towards the direction away from the open end of the "n" shape, and the motor connection end 3 is also bent towards the direction where the motor 001 is arranged to form a connection section. This structure further ensures the structural strength of the motor connection end 3, especially the bending and torsion strength. The strip-shaped hole is opened on the connection section.

[0029] In this embodiment, an avoidance notch 4 is opened on the connection section. The opening of the avoidance notch 4 makes the motor connection end 3 assembled on the motor 001 in a jaw shape, and the jaws expand outwards, making the side projection of the functional foot plate 003 approximately in the shape of butterfly wings. Its own structural strength is better, and when this structure is connected to the motor 001 and the axle housing 002, the overall structure is more compact, which is beneficial to reducing the assembly space.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A bracket assembly for a vehicle motor, characterized in that: It includes a functional foot plate connecting the motor and the bridge housing, the functional foot plate is fixed on the bridge housing, the motor and the functional foot plate are fixed by a connecting piece, a strip hole perpendicular to the extension direction of the bridge housing is opened on the functional foot plate, and the connecting piece is connected to the motor through the strip hole so that the distance between the motor and the bridge housing is determined.

2. The bracket assembly for a vehicle motor according to claim 1, characterized in that: There are two strip-shaped holes, and the two strip-shaped holes are respectively and correspondingly arranged on the upper side and the lower side of the position where the functional foot plate is connected to the bridge housing.

3. The bracket assembly for a vehicle motor according to claim 2, characterized in that: It also includes a connecting sleeve, which is sleeved on the connecting rod and forms a support for the functional foot plate and the motor.

4. The bracket assembly for a vehicle motor according to claim 2, characterized in that: The functional foot plate is fixed on the bridge housing by means of welding.

5. The bracket assembly for a vehicle motor according to claim 4, characterized in that: The functional foot plate includes a bridge housing connection end, the projection of the bridge housing connection end along the length direction of the bridge housing is in a "C" shape, and the projection of the bridge housing connection end along the direction perpendicular to the length direction of the bridge housing is in an "n" shape.

6. The bracket assembly for a vehicle motor according to claim 5, characterized in that: The middle part of the back of the bridge housing connecting end in the length direction protrudes in a direction away from the "n"-shaped opening.

7. The bracket assembly for a vehicle motor according to claim 4, characterized in that: The functional foot plate also includes a motor connection end integrally formed with the bridge housing connection end.

8. The bracket assembly for a vehicle motor according to claim 7, characterized in that: The motor connection end is formed by extending from the back of the bridge housing connection end in a direction away from the "n"-shaped opening.

9. The bracket assembly for a vehicle motor according to claim 8, characterized in that: The motor connection end is also bent toward the setting direction of the motor to form a connection section, and the two strip holes are opened on the connection section.

10. The bracket assembly for a vehicle motor according to claim 9, characterized in that: An avoidance gap is provided on the connecting section.

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