CN212473651U

CN212473651U - Subframe and motor vehicle

Info

Publication number: CN212473651U
Application number: CN202021409474.9U
Authority: CN
Inventors: 张伟; 徐银光; 陈辛波; 张剑涛; 林忠彦
Original assignee: Qihang Automobile Co Ltd
Current assignee: Qihang Automobile Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-05
Anticipated expiration: 2030-07-16

Abstract

The embodiment of the utility model discloses sub vehicle frame and motor vehicle. The sub-frame includes: two longitudinal beams arranged oppositely; the two first cross beams are connected between the two longitudinal beams at intervals; the two mounting frames are respectively connected with two opposite ends of the two first cross beams; the second cross beam is connected to one side, away from the two first cross beams, of the two mounting frames; the two half-shaft sleeves are respectively positioned on one sides of the two longitudinal beams far away from the two first cross beams; and the two wheel side connecting pieces are respectively connected between the two half-shaft sleeves and the corresponding longitudinal beams. The embodiment of the utility model provides an effectively solve the problem that sub vehicle frame intensity is low, the structure is complicated, the modification is difficult.

Description

Subframe and motor vehicle

Technical Field

The utility model relates to a motor vehicle accessory technical field especially relates to an auxiliary vehicle frame and a motor vehicle.

Background

At present, the main mode that the motor vehicle realizes that wheel drive rear axle is integrated bears motor and reduction gear on the bottom plate of sub vehicle frame, wherein, set up on the bottom plate can match the installation position respectively with motor and reduction gear, and under general condition, this bottom plate sets up to the arc to motor and reduction gear match respectively and install to the corresponding installation position on the bottom plate on, thereby be connected motor and reduction gear, and further fix the two on the bottom plate. When the motor vehicle runs, the speed reducer outputs power to the hub connected with the speed reducer, and when the power is output to the wheel, the outer shell of the speed reducer is fixedly connected with the hub, so that the load on the wheel side is transmitted to the bottom plate through the speed reducer, the load born by the bottom plate is large, and the strength of the bottom plate needs to be enhanced.

In the prior art, the strength of the floor is generally enhanced by several means: 1. the bottom plate is made of a thicker steel plate, but the weight of the auxiliary frame is directly increased by doing so, so that the requirements of light weight and smoothness are not met; 2. the bottom plate of the auxiliary frame is designed in a customized mode according to the specific shapes of the motor and the speed reducer, however, the bottom plate of the auxiliary frame needs to be redesigned according to the motor and the speed reducer, and modification of a motor vehicle is not facilitated; 3. because the wheel side load that the shell body of reduction gear received wheel hub transmission directly, consequently increase the thickness of the shell body of reduction gear in order to reduce wheel side load transmission to the bottom plate, but can obviously increase the weight of reduction gear like this, the effect of wheel side load is received to the gear of reduction gear simultaneously to there is great displacement, be unfavorable for gear engagement, still can increase the noise like this and reduce the life of gear.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides an auxiliary frame and a motor vehicle effectively solve the influence that the wheel side load of wheel hub transmission produced auxiliary frame.

On the one hand, the embodiment of the utility model provides a pair of sub vehicle frame, include: two longitudinal beams arranged oppositely; the two first cross beams are connected between the two longitudinal beams at intervals; the two mounting frames are respectively connected with two opposite ends of the front cross beam and the rear cross beam; the second cross beam is connected to one side, away from the two first cross beams, of the two mounting frames; the two half-shaft sleeves are respectively positioned on one sides of the two longitudinal beams far away from the two first cross beams; and the two wheel side connecting pieces are respectively connected between the two half-shaft sleeves and the corresponding longitudinal beams.

In this embodiment, the axle sleeve, the wheel side connecting member and the longitudinal beam arranged in the auxiliary frame can transmit the load on the wheel side to the frame, so that a driving system is prevented from bearing the load on the wheel side, and the reduction of the mass and size of the speed reducer is facilitated; furthermore, due to the flexibility of the space truss structure, the wheel driving system can be arranged at any position within a certain size range by adjusting the size of the truss, and the wheel driving system is convenient to mount and the space arrangement is flexible.

In an embodiment of the present invention, the two wheel-side connecting members respectively form a first mounting position with the longitudinal beam and the mounting frame, and the first mounting position is used for mounting a wheel drive reducer.

In an embodiment of the present invention, the two mounting frames, the two first beams and the second beam form a second mounting location for mounting a wheel drive motor.

In an embodiment of the present invention, the system further includes: and the mounting frame connecting piece is connected between the longitudinal beam and the corresponding mounting frame.

In an embodiment of the present invention, two opposite ends of the two longitudinal beams are respectively provided with a third mounting position, and the third mounting positions are used for mounting the subframe to a frame of a motor vehicle; the sub-frame further includes: and the shock absorbing pieces are respectively arranged at the third mounting positions.

In an embodiment of the present invention, the mounting frame is provided with a connecting shaft hole; the connecting shaft hole and the semi-shaft sleeve are coaxially arranged.

In an embodiment of the present invention, the mounting frame is a planar truss structure or a flat plate structure.

On the other hand, the embodiment of the utility model provides a motor vehicle, include: the automobile body is connected to the frame of the automobile body.

In one embodiment of the present invention, a wheel driving motor of the vehicle body is installed between the second cross member and the two first cross members; a wheel driving speed reducer of the motor vehicle body is arranged between the mounting frame and the corresponding wheel side connecting piece; the axle shaft sleeve is connected with the wheels of the motor vehicle body.

In an embodiment of the present invention, the output shaft of the wheel driving motor is connected to the input shaft of the wheel driving speed reducer through the mounting bracket, and the output shaft of the wheel driving speed reducer is connected to the wheel through the axle sleeve.

In summary, the above embodiments of the present application may have one or more of the following advantages or benefits: i) the longitudinal and vertical bending moments borne by the auxiliary frame are borne by the three cross beams, so that the quality of the auxiliary frame can be reduced, the strength of the auxiliary frame is improved, and the wheel side load transmitted to the longitudinal beam through the axle shaft sleeve and the wheel side connecting piece is reduced; ii) the size and the dimension of the mounting frame are convenient to modify, and the size adjustment of the motor and the speed reducer in the longitudinal direction and the vertical direction is facilitated; iii) the mounting frame is only in surface contact with the motor and the speed reducer and is matched with the speed reducer and the motor to be independent of the specific shape and size of the speed reducer, so that the motor and the speed reducer can be conveniently reformed; iv) the mounting plate is fixedly connected with the lower cross beam or the longitudinal beam, and the transverse size of a connecting point can be conveniently modified, so that the transverse position adjustment of the motor and the speed reducer can be realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a subframe 100 according to a first embodiment of the present invention.

Fig. 2A is a schematic structural diagram of the first mounting location 101 of the subframe 100 shown in fig. 1.

Fig. 2B is a schematic top view of the structure of fig. 2A.

Fig. 3A is a schematic structural diagram of the second mounting location 102 of the subframe 100 shown in fig. 1.

Fig. 3B is a schematic top view of the structure of fig. 3A.

Fig. 4 is a schematic view of an installation structure of the subframe 100 and the speed reducer 170 in the motor vehicle according to the second embodiment of the present invention.

Description of the main element symbols:

100 is an auxiliary frame; 101 is a first installation position; 102 is a second mounting position; 110 is a longitudinal beam; 111 is a third mounting position; 112 is a frame mounting member; 120 is a first beam; 121 is a first beam mount; 130 is a mounting frame; 131 is a mounting bracket connecting piece; 132 is a mount base plate; 140 is a second beam; 150 is a half-shaft sleeve; 160 is a wheel-side connecting member; 170 is a wheel drive retarder.

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 efforts belong to the protection scope of the present invention.

[ first embodiment ] A method for manufacturing a semiconductor device

Referring to fig. 1, which is a schematic structural diagram of a subframe 100 according to a first embodiment of the present invention, the subframe 100 includes: two longitudinal beams 110, two first cross beams 120, two mounting frames 130, a second cross beam 140, two axle sleeves 150 and two wheel side connecting pieces 160 which are oppositely arranged. The two first cross beams 120 are connected between the two longitudinal beams 110 at intervals, the two mounting frames 130 are connected to two opposite ends of the two first cross beams 120 respectively, the second cross beam 140 is connected to one side of the two mounting frames 130 far away from the two first cross beams 120 respectively, the two axle sleeves 150 are located on one side of the two longitudinal beams 110 far away from the two first cross beams 120 respectively, and the two wheel-side connecting pieces 160 are connected between the two axle sleeves 150 and the corresponding longitudinal beams 110 respectively.

For better understanding of the present embodiment, a detailed description of the subframe 100 of the present embodiment is provided below with reference to fig. 2A, fig. 2B, fig. 3A and fig. 3B.

Specifically, referring to fig. 2A and 2B, a wheel-side connecting member 160 and a mounting bracket 130 are respectively mounted to opposite sides of a longitudinal beam 110, and at the same time, the wheel-side connecting member 160, the longitudinal beam 110 and the mounting bracket 130 form a first mounting location 101, the first mounting location 101 being used for mounting a wheel drive reducer 170; likewise, a further first mounting location 101 is formed at a further longitudinal beam 110. For example, the side of the mounting bracket 130 opposite to the wheel-side connection member 160 is provided with an input shaft mounting hole for connecting the wheel drive reducer 170, and the side of the wheel-side connection member 160 opposite to the mounting bracket 130 is provided with an output shaft through hole for connecting the wheel drive reducer 170, the input shaft mounting hole and the output shaft through hole being located on the same axis, and the distance therebetween may be set according to the wheel drive reducer 170. Further, the side surface of the mounting frame 130 may further be provided with a plurality of small holes, and the small holes are circumferentially distributed in the input shaft mounting hole and located at the edge of the mounting frame 130, so as to fixedly connect the wheel drive reducer 170 to the mounting frame 130, and enhance the stability of the wheel drive reducer 170.

Preferably, the structure of the mounting bracket 130 may be a triangular space truss structure. Meanwhile, due to the flexibility of the space truss structure, the wheel-side driving system can be arranged to any position of the mounting frame 130 within a certain size range by adjusting the size of the truss, so that the wheel-side driving system is convenient to mount, and the flexibility of space arrangement is improved.

Preferably, the subframe 100 further includes, for example, a mount connector 131 and a mount base 132. The mount link 131 is connected between the mount 130 and the side rail 110 on the same side, and the mount base 132 is connected between the bottom surface of the mount 130 and the side surface of the side rail 110 adjacent to the mount 130.

For example, the mount connecting member 131 may be a rectangular plate, such as a rectangular steel plate, and the mount connecting member 131 may be welded between the longitudinal beam 110 and the mount 130 opposite to the longitudinal beam, specifically, one side of the mount connecting member 131 is welded to the side of the longitudinal beam 110 opposite to the mount 130, and the other side of the mount connecting member 131 is welded to the side of the mount 130 opposite to the longitudinal beam 110. Of course, the mount connector 131 may be horizontally interposed between the mount 130 and the stringer 110 for stability.

For another example, the mount base plate 132 is disposed parallel to the mount connector 131, the mount base plate 132 is connected to the bottom of the mount 130, and a space is provided between the mount base plate 132 and the mount connector 131; opposite ends of the side of the mounting bracket 130 connected to the mounting bracket base 132 respectively protrude from the mounting bracket base 132. Since all the connections of the mount link 131 and the mount base 132 are surface connections, the positions of the connections can be translated laterally, and the mount 130 moves along with the movement of the mount link 131 and the mount base 132, so that the first mounting position 101 can meet the mounting requirements of the wheel drive reducer 170.

Preferably, the wheel-side connectors 160 of the subframe 100 are connected between the respective side rails 110 and the axle sleeves 150. The output shaft through hole of the wheel side connecting member 160 and the inner hole of the axle shaft sleeve 150 are coaxially disposed, and are coaxially disposed with the input shaft mounting hole of the mounting bracket 130, respectively. The output shaft through hole of the wheel-side connecting member 160 is disposed close to the side of the first mounting position 101 and away from the side of the longitudinal beam 110, so that the first mounting position 101 has a suitable width for mounting the wheel drive reducer 170.

Preferably, the side member 110 of the subframe 100 is further provided with, for example, a third mounting location 111 and a frame mounting member 112. The third mounting positions 111 may be sheet metal structures, and are used for mounting the subframe 100 to a frame of a motor vehicle, and the subframe 100 is stably connected to the frame through the plurality of third mounting positions 111 respectively arranged on the two longitudinal beams 110.

Further, each third mounting position 111 may be further provided with a damping member for reducing the wheel-side load and other vibration transmitted from the subframe 100 to the vehicle frame. Of course, the side of the longitudinal beam 110 located at the wheel side connecting member 160 may also be provided with a frame mounting member 112, and the frame mounting member 112 may also be a sheet metal structure and used for mounting the subframe 100 to the frame, so as to further enhance the mounting stability of the subframe 100. For example, the shock absorbing member may be a spring or a shock absorber, and the shock absorber may be a hydraulic or pneumatic shock absorber, although not listed here.

In one embodiment, referring to fig. 3A and 3B, two mounting brackets 130, two first cross members 120, and a second cross member 140 form a second mounting location 102, the second mounting location 102 for mounting a wheel drive motor. Wherein, the top ends of the two mounting brackets 130 are respectively connected to the two ends of the second beam 140, and therefore, the second beam 140 limits the top space of the second mounting position 102.

In one embodiment, each of the two first cross members 120 may be a segmented structure. For example, the first cross member 120 is a linear rod, and a first cross member mounting member 121 is disposed near each of two sides of the two longitudinal members 110. The two first cross member mounting members 121 are respectively used for fixing the subframe 100, and the positions of the two first cross member mounting members 121 on the first cross member 120 can be set according to the mounting positions of the subframe 100 on the frame.

In one embodiment, two mount floors 132 each extend inwardly toward the second mounting location 102. For example, the portion of the mounting bracket bottom plate 132 extending into the second mounting position 102 is "C" shaped, that is, the portions of the mounting bracket bottom plate adjacent to the two first cross members 120 are triangular (see the structure shown in fig. 3A); of course, it may also be designed to match the shape of the wheel drive.

Further, one side of the triangular connection first beam 120 may extend to be connected to the first beam mounting member 121 on the other side.

[ second embodiment ]

A second embodiment of the present invention provides a motor vehicle (not shown in the drawings), for example, comprising: a vehicle body and a subframe 100 as provided in the first embodiment. Wherein the subframe 100 is mounted to a frame of the vehicle body. The vehicle body may be an existing vehicle, that is, the subframe 100 may be mounted on the frame of the existing vehicle.

Specifically, referring to fig. 4, the second cross member 140, the two first cross members 120 and the second mounting locations 102 formed between the two mounting brackets 130 are used for mounting the wheel driving motors of the vehicle body; the two first mounting positions 101 are respectively used for mounting a wheel drive reducer 170 of the motor vehicle body; a half-axle sleeve 150 connects the wheels of the motor vehicle body. Further, an output shaft of the wheel driving motor is connected with an input shaft of a wheel driving reducer 170 through a mounting frame 130, and an output shaft of the wheel driving reducer 170 is connected with the wheel through the axle shaft sleeve 150.

The third mounting locations 111 and the frame mounting members 112 of the subframe 100 are respectively connected to the frame of the vehicle body through shock absorbing members, and will not be described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A subframe, comprising:

two longitudinal beams arranged oppositely;

the two first cross beams are connected between the two longitudinal beams at intervals;

the two mounting frames are respectively connected with two opposite ends of the two first cross beams;

the second cross beam is connected to one side, away from the two first cross beams, of the two mounting frames;

the two half-shaft sleeves are respectively positioned on one sides of the two longitudinal beams far away from the two first cross beams;

and the two wheel side connecting pieces are respectively connected between the two half-shaft sleeves and the corresponding longitudinal beams.

2. The subframe of claim 1 wherein,

the two wheel side connecting pieces respectively form a first mounting position with the corresponding longitudinal beam and the mounting frame, and the first mounting position is used for mounting a wheel driving speed reducer.

3. The subframe of claim 1 wherein,

the two mounting brackets, the two first cross beams and the second cross beam form a second mounting position, and the second mounting position is used for mounting the wheel driving motor.

4. The subframe of claim 1 further comprising:

and the mounting frame connecting piece is connected between the longitudinal beam and the corresponding mounting frame.

5. The subframe of claim 1 wherein each of said two longitudinal members has a third mounting location at each of opposite ends thereof for mounting said subframe to a frame of a motor vehicle; the sub-frame further includes:

and the shock absorbing pieces are respectively arranged at the third mounting positions.

6. The subframe of claim 1 wherein said mounting bracket defines a connecting axle hole; the connecting shaft hole and the semi-shaft sleeve are coaxially arranged.

7. The subframe of claim 1 wherein said mounting bracket is a truss or flat plate structure.

8. A motor vehicle, comprising:

a motor vehicle body;

the subframe of any of claims 1-7, attached to a frame of said vehicle body;

wherein a wheel driving motor of the motor vehicle body is arranged between the second cross beam and the two first cross beams; a wheel driving speed reducer of the motor vehicle body is arranged between the mounting frame and the corresponding wheel side connecting piece; the half-axle sleeve is connected with a wheel of the motor vehicle body;

the output shaft of the wheel driving motor is connected with the input shaft of the wheel driving speed reducer through the mounting frame, and the wheel driving speed reducer is connected with the wheel through the half-shaft sleeve.