CN209852083U

CN209852083U - Chassis and electric automobile

Info

Publication number: CN209852083U
Application number: CN201920250493.2U
Authority: CN
Inventors: 王兴之
Original assignee: Hebei Eureka Electronic Technology Co Ltd
Current assignee: Hebei Eureka Electronic Technology Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2019-12-27
Anticipated expiration: 2029-02-27

Abstract

The utility model provides a chassis and an electric automobile, belonging to the technical field of automobile transmission, wherein the chassis comprises an installation base, a front suspension assembly and a rear suspension assembly; the front suspension assembly is fixedly arranged at the front end of the mounting base, the rear suspension assembly is fixedly arranged at the rear end of the mounting base, a first rotating shaft with one end used for being connected with the differential mechanism and a second rotating shaft with one end connected with a wheel are arranged on the rear suspension assembly, and the other end of the first rotating shaft is in transmission connection with the other end of the second rotating shaft and is in sliding fit connection with the second rotating shaft. The electric automobile adopts the chassis. The utility model provides a chassis and electric automobile, during first pivot and second pivot atress, first pivot is followed the second pivot and is slided, can increase the total length of first pivot and second pivot, prevents that first pivot and second pivot from receiving great stress, and the cracked condition of first pivot and second pivot appears, makes the bearing capacity and the intensity increase on chassis, has improved the life on chassis.

Description

Chassis and electric automobile

Technical Field

The utility model belongs to the technical field of the car transmission, more specifically say, relate to a chassis and adopted electric automobile on this chassis.

Background

On the road surface of the pothole that the vehicle went, the wheel can take place the displacement in vertical direction, leads to automobile body and chassis also to appear vibrating in vertical direction, and the length of the transmission shaft on the present chassis is fixed, and the ascending removal in automobile body and the vertical direction in chassis can make the transmission shaft slope appear, and this kind of condition greatly increased the atress of transmission shaft, lead to the transmission shaft and the emergence fracture to the life on chassis has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chassis and electric automobile to solve the lower technical problem of life on chassis that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a chassis comprising:

installing a base;

the front suspension assembly is fixedly arranged at the front end of the mounting base and is positioned below the mounting base; and

the rear suspension assembly is fixedly arranged at the rear end of the mounting base and is positioned below the mounting base; the rear suspension assembly is provided with a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is used for being connected with the differential mechanism, one end of the second rotating shaft is connected with a wheel, the other end of the first rotating shaft is in transmission connection with the other end of the second rotating shaft, and the first rotating shaft and the second rotating shaft are in sliding fit connection.

Further, the rear suspension assembly includes:

the supporting frame is fixedly arranged at the rear end of the mounting base, is positioned below the mounting base and is used for mounting a differential mechanism;

the number of the rear swing arms is two, the rear swing arms are respectively positioned on two sides of the supporting frame, and one end of each rear swing arm is hinged with the mounting base; and

one end of the shock absorber is arranged at the other end of the rear swing arm, and the other end of the shock absorber is connected with the mounting base;

the first rotating shaft and the second rotating shaft are two groups and are respectively positioned between the support frame and the rear swing arm, one end of the first rotating shaft penetrates through the support frame and is used for being in transmission connection with a power mechanism, and one end of the second rotating shaft penetrates through the rear swing arm and is used for being fixedly connected with the wheel.

Further, the support frame includes:

the two support rods are respectively fixed on the mounting base and are oppositely arranged at intervals;

the mounting panels are two in number and are respectively vertically arranged on the support rods, and mounting holes matched with the first rotating shafts to be mounted are formed in each mounting panel.

Further, still be equipped with on the mounting panel with the mounting hole corresponding mounting groove, install in the mounting groove and be used for supporting first pivot pivoted bearing, the tank bottom of mounting groove with the mounting hole communicates with each other.

Furthermore, an annular groove is formed in the first rotating shaft, a check ring used for limiting axial movement of the first rotating shaft is arranged on the annular groove, and the check ring is located on one side, away from the second rotating shaft, of the mounting plate.

Further, the swing arm includes:

the fixed block is arranged on one side of the support frame, and a first through hole for rotationally connecting with a wheel is formed in the fixed block;

the first extending part is arranged on one side, close to the supporting frame, of the fixed block and extends in a direction perpendicular to the center line of the first through hole; one end of the first extending part, which is far away from the fixed block, is hinged with the bottom end of the vehicle body; and

the second extension part is positioned on the same side of the fixed block as the first extension part and is opposite to the first extension part; the shock absorber is hinged to the second extension portion.

Furthermore, the other end of the first rotating shaft is provided with a spline, the other end of the second rotating shaft is provided with a spline groove which is rotationally connected with the spline, and the spline is in sliding fit with the spline groove.

Further, the chassis further includes:

and one end of the protective sleeve is fixed on the outer wall of the first rotating shaft, and the other end of the protective sleeve is fixed on the outer wall of the second rotating shaft and used for protecting the spline.

Furthermore, one end of the first rotating shaft and one end of the second rotating shaft are both provided with hinged structures which are respectively connected with the differential and the wheels.

The utility model provides a beneficial effect on chassis lies in: compared with the prior art, the utility model discloses the chassis, the installation base, preceding suspension assembly and back suspension assembly constitute the structure on chassis, support the automobile body jointly, set up first pivot on the suspension assembly of back and rotate and sliding fit's second pivot with first pivot, make the chassis remove in vertical emergence, during first pivot and second pivot atress, first pivot slides along the second pivot, can increase the total length of first pivot and second pivot, prevent that first pivot and second pivot from receiving great stress, and the cracked condition of first pivot and second pivot appears, make the bearing capacity and the intensity increase on chassis, the life on chassis has been improved.

Another object of the present invention is to provide an electric vehicle, including any one of the above chassis.

The utility model provides an electric automobile, owing to adopted foretell chassis, increased the total length of first pivot and second pivot, prevented that first pivot and second pivot from receiving great stress, made the bearing capacity and the intensity increase on chassis, improved the life on chassis, made electric automobile go steadily.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described 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 to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a chassis according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural diagram of a rear suspension assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a protective sheath according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-installing a base; 2-a front suspension assembly; 3-a rear suspension assembly; 31-a first shaft; 311-spline; 312-a protective sheath; 32-a second shaft; 33-a support frame; 331-support bar; 332-a mounting plate; 333-bearing; 334-a retainer ring; 34-a rear swing arm; 341-fixed block; 342-a first extension; 343-a second extension; 35-a shock absorber; 36-a hinge structure; 4-differential gear.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the chassis provided by the present invention will now be described. A chassis comprises a mounting base 1, a front suspension assembly 2 and a rear suspension assembly 3; the front suspension assembly 2 is fixedly arranged at the front end of the mounting base 1 and is positioned below the mounting base 1; the rear suspension assembly 3 is fixedly arranged at the rear end of the mounting base 1 and is positioned below the mounting base 1; the rear suspension assembly 3 is provided with a first rotating shaft 31 with one end used for being connected with the differential 4 and a second rotating shaft 32 with one end connected with a wheel, and the other end of the first rotating shaft 31 is in transmission connection with the other end of the second rotating shaft 32 and is in sliding fit connection.

The utility model provides a chassis, compared with the prior art, installation base 1, preceding suspension assembly 2 and back suspension assembly 3 constitute the structure on chassis, support the automobile body jointly, set up first pivot 31 and rotate with first pivot 31 and be connected and sliding fit's second pivot 32 on the back suspension assembly 3, make the chassis remove in vertical emergence, during first pivot 31 and second pivot 32 atress, first pivot 31 slides along second pivot 32, can increase the total length of first pivot 31 and second pivot 32, prevent that first pivot 31 and second pivot 32 from receiving great stress, and the cracked condition of first pivot 31 and second pivot 32 appears, make the bearing capacity and the intensity increase on chassis, the life on chassis has been improved.

The front suspension assembly 2 is a macpherson independent suspension, and a first rotating shaft 31 and a second rotating shaft 32 can be arranged to be respectively hinged with the differential 4 and the wheels, so that the tilting action can be completed. The front section of the mounting base 1 is provided with an open slot for mounting the front suspension assembly 2, and a steering system, a braking system and the like can be arranged at the bottom of the mounting base 1 and in the open slot. The two sides of the rear end of the mounting base 1 are respectively provided with a protruding structure, so that the structure is used for mounting wheels and bearing a vehicle body. The mounting base 1 adopts a plate-shaped structure. A frame consisting of a plurality of bars may be provided at the rear of the mounting base 1 for supporting a vehicle seat or the like.

Referring to fig. 1 and 3, as a specific embodiment of the chassis provided by the present invention, the rear suspension assembly 3 includes a supporting frame 33, a rear swing arm 34, and a shock absorber 35; the supporting frame 33 is fixedly arranged at the rear end of the mounting base 1, is positioned below the mounting base 1 and is used for mounting the differential mechanism 4; the number of the rear swing arms 34 is two, the two rear swing arms are respectively positioned at two sides of the supporting frame 33, and one end of each rear swing arm 34 is hinged with the mounting base 1; one end of a shock absorber 35 is arranged at the other end of the rear swing arm 34, and the other end of the shock absorber 35 is connected with the mounting base 1; the two groups of first rotating shafts 31 and second rotating shafts 32 are respectively positioned between a supporting frame 33 and a rear swing arm 34, one end of each first rotating shaft 31 penetrates through the supporting frame 33 and is used for being in transmission connection with a power mechanism, one end of each second rotating shaft 32 penetrates through the rear swing arm 34 and is used for being fixedly connected with a wheel, the supporting frame 33 is arranged to be capable of mounting not only a differential mechanism 4, but also the first rotating shafts 31, the second rotating shafts 32, a motor, a storage battery and the like, and a stable supporting structure is formed below the mounting base 1; the intermediate position of base rear end is located to support frame 33, two back swing arms 34 set up respectively between support frame 33 and each wheel, back swing arm 34 one end is articulated with installation base 1, and set up bumper shock absorber 35 at the other end of back swing arm 34, connect back swing arm 34 and installation base 1 through bumper shock absorber 35, when bumper shock absorber 35 buffering automobile body vibration, back swing arm 34 automobile body articulated one end also takes place to rotate, compensate the rotation that bumper shock absorber 35 forced back swing arm 34's the other end to appear, avoid back swing arm 34 atress too big and impaired circumstances to appear through this kind of mode. The rear swing arm 34 is located between the support frame 33 and the wheel, the second rotating shaft 32 is connected with the first rotating shaft 31, and the other end of the second rotating shaft passes through the rear swing arm 34 and is connected with the wheel.

Referring to fig. 1 and 3, as a specific embodiment of the chassis of the present invention, the supporting frame 33 includes two supporting rods 331 and two mounting plates 332, the two supporting rods 331 are respectively fixed on the mounting base 1 and are oppositely disposed at intervals; the number of the mounting plates 332 is two, the mounting plates are respectively vertically arranged on the support rods 331, mounting holes matched with the first rotating shaft 31 are formed in each mounting plate 332, the two support rods 331 which are oppositely arranged at intervals are respectively fixed at the lower end of the mounting base 1, the differential mechanism 4 is arranged between the two support rods 331, the mounting plates 332 are respectively arranged on the two support rods 331, the mounting plates 332 are vertically arranged, and the differential mechanism 4 is fixed by using the two mounting plates 332; mounting holes are provided in the mounting plate 332 so that one end of the first shaft 31 passes through the mounting holes to be drivingly connected to the differential 4. The support frame 33 of this structure has a small mass and occupies a small space. The support rod 331 can be hollow, further reducing the weight of the support frame 33. A fixing member may be provided on the mounting plate 332 to fix the mounting plate 332 to the mounting base 1.

Please refer to fig. 4, as a specific embodiment of the chassis according to the present invention, the mounting plate 332 is further provided with a mounting groove corresponding to the mounting hole, the mounting groove is internally provided with a bearing 333 for supporting the rotation of the first rotating shaft 31, the bottom of the mounting groove is communicated with the mounting hole, the mounting groove is arranged on the mounting plate 332, the mounting groove is aligned with the mounting hole, and the mounting hole passes through the bottom of the mounting groove, the mounting groove is used as a bearing seat, the bearing 333 is mounted in the mounting groove, after the first rotating shaft 31 passes through the mounting hole, the mounting groove is mounted in the bearing 333 in a matching manner, and the bearing 333 supports the stable and accurate rotation of the first rotating shaft 31, thereby ensuring the stable transmission of power. The bearing 333 can be hidden between the mounting plate 332 and the differential 4 to prevent a part of dust or impurities from interfering with the normal operation of the bearing 333, and improve the transmission precision of the bearing 333 for supporting the first rotating shaft 31. Meanwhile, a cover may be provided on the differential 4 to cover the bearing 333. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Please refer to fig. 3 and fig. 4, as a specific embodiment of the chassis provided by the present invention, an annular groove is disposed on the first rotating shaft 31, a retaining ring 334 for limiting the axial movement of the first rotating shaft 31 is disposed on the annular groove, the retaining ring 334 is disposed on one side of the mounting plate 332 away from the second rotating shaft 32, the annular groove is disposed between the mounting plate 332 and the differential mechanism 4, and the retaining ring 334 is disposed on the annular groove, after the mounting plate 332 is fixedly connected to the differential mechanism 4 by bolts, the first rotating shaft 31 passes through the mounting hole to be connected with the differential mechanism 4, the axial movement of the first rotating shaft 31 is limited by the retaining ring 334, the occurrence of the situation that the first rotating shaft 31 is separated from the differential mechanism 4 can be effectively avoided.

Referring to fig. 3, as a specific embodiment of the chassis of the present invention, the rear swing arm 34 includes a fixing block 341, a first extending portion 342 and a second extending portion 343, the fixing block 341 is disposed on one side of the supporting frame 33, and the fixing block 341 is provided with a first through hole for rotatably connecting with a wheel; the first extending portion 342 is disposed on one side of the fixed block 341 close to the supporting frame 33 and extends in a direction perpendicular to the center line of the first through hole; one end of the first extension part 342, which is far away from the fixed block 341, is hinged with the bottom end of the vehicle body; the second extension 343 is located on the same side of the fixed block 341 as the first extension 342 and is opposite to the first extension 342; the shock absorber 35 is hinged to the second extending portion 343, hinged to the bottom of the mounting base 1 through the first extending portion 342, the shock absorber 35 is arranged on the second extending portion 343, two ends of the shock absorber 35 are hinged to the second extending portion 343 and the bottom of the mounting base 1 respectively, and the fixing block 341 is provided with a first through hole, so that the second rotating shaft 32 passes through the first through hole to be connected with a wheel, a hammock on a wheel hub penetrates through the first through hole and is rotatably connected with the first through hole, when a vehicle body vibrates, the shock absorber 35 buffers the vibration of the whole chassis, the second extending portion 343 is pressed to rotate, the chassis and the vehicle body are unstable, at the moment, the first extending portion 342 also rotates under the action of the second extending portion 343 to compensate the rotation amount of the second extending portion 343, and the vibration amplitude of the chassis and the vehicle body is reduced. The first extension portion 342, the second extension portion 343, and the fixed block 341 may be integrally formed, and the hinge axis of the first extension portion 342 and the vehicle body, and the hinge axis of the second extension portion 343 and the shock absorber 35 may be parallel to the center line of the second through hole. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Can be equipped with the connection structure who is used for installing the braking pincers on fixed block 341, first through-hole on the fixed block 341 is connected the back with the harba head, and is quick simple to install the braking pincers on connection structure, need not to occupy other spaces. The connecting structure comprises two protruding parts and two threaded holes, the two protruding parts are respectively arranged on the fixed block 341, and the two protruding parts are oppositely arranged; the threaded holes are formed in the protruding portions and used for being fixedly connected with the brake caliper, the brake caliper corresponds to the two protruding portions during installation, bolts penetrate through the threaded holes and the brake caliper, the brake caliper is fixed to the two protruding portions, the brake caliper can work stably, and the state of a wheel can be controlled conveniently. A connecting rod for enhancing the strength of the first extension portion 342 and the second extension portion 343 is arranged between the first extension portion 342 and the second extension portion 343, two reinforcing plates are arranged to reinforce the connection between the first extension portion 342 and the second extension portion 343 and the fixed block 341, the two reinforcing plates are arranged at intervals, the first extension portion 342 and the second extension portion 343 are arranged between the two reinforcing plates, and the two reinforcing plates can surround the connection between the first extension portion 342 and the connection between the second extension portion 343 and the connecting rod by welding, so that the strength of the whole rear swing arm 34 is further improved.

Please refer to fig. 1 to fig. 3, as the utility model provides a specific implementation of chassis, the other end of first pivot 31 is equipped with spline 311, the other end of second pivot 32 is equipped with the spline groove of being connected with spline 311 rotation, spline 311 and the spline groove sliding fit of telling, install in the spline groove through spline 311 cooperation, make spline 311 both can transmit power to second pivot 32, can make spline 311 sliding fit and spline inslot again, and is simple and convenient, reliable. The spline 311 is used for larger transmission torque, so that power can be stably transmitted, and the stability is higher. First shaft 31 may employ splined 311 half shafts. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Referring to fig. 5, as a specific embodiment of the chassis provided by the present invention, the chassis further includes a protective sleeve 312, one end of the protective sleeve 312 is fixed on the outer wall of the first rotating shaft 31, and the other end is fixed on the outer wall of the second rotating shaft 32 for protecting the spline 311. The protective sleeve 312 is disposed on the first rotating shaft 31 and the second rotating shaft 32, so that the spline 311 is disposed in the protective sleeve 312, and dust and impurities are prevented from falling onto the spline 311 and in the spline grooves to affect the normal operation of the spline 311. The protective sleeve 312 may be of a resilient construction.

Referring to fig. 1, fig. 3 and fig. 5, as a specific embodiment of the chassis provided by the present invention, one end of the first rotating shaft 31 and one end of the second rotating shaft 32 are respectively provided with a hinge structure 36 connected with the differential 4 and the wheel, the hinge structure 36 is provided, one ends of the first rotating shaft 31 and the second rotating shaft 32 are respectively hinged with the differential 4 and the wheel through the hinge structure 36, so that when the wheel passes through a pothole road section, one ends of the first rotating shaft 31 and the second rotating shaft 32 can respectively rotate with the hinge structure 36 as a hinge shaft, and the first rotating shaft 31 and the second rotating shaft 32 can not be damaged by a large stress due to a corresponding rotation of the wheel in a vertical movement. The hinge structure 36 may be a universal joint, and the universal joint is fixedly disposed at one end of the first rotating shaft 31 or the second rotating shaft 32.

In the drawings, the embodiment of the present invention further provides an electric vehicle, which includes any one of the above chassis.

The embodiment of the utility model provides an electric automobile has adopted foretell chassis, has increased the total length of first pivot 31 and second pivot 32, prevents that first pivot 31 and second pivot 32 from receiving great stress, makes the bearing capacity and the intensity increase on chassis, has improved the life on chassis, makes electric automobile travel steadily.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A chassis, comprising:

installing a base;

2. The chassis of claim 1, wherein the rear suspension assembly comprises:

3. The chassis of claim 2, wherein the support frame comprises:

4. The chassis of claim 3, wherein the mounting plate is further provided with a mounting groove corresponding to the mounting hole, a bearing for supporting the first rotating shaft to rotate is mounted in the mounting groove, and the bottom of the mounting groove is communicated with the mounting hole.

5. The chassis of claim 3, wherein the first shaft is provided with an annular groove, the annular groove is provided with a retaining ring for limiting the axial movement of the first shaft, and the retaining ring is positioned on one side of the mounting plate away from the second shaft.

6. The chassis of claim 2, wherein the rear swing arm comprises:

7. The chassis according to claim 1, wherein the other end of the first rotating shaft is provided with a spline, the other end of the second rotating shaft is provided with a spline groove which is rotatably connected with the spline, and the spline is in sliding fit with the spline groove.

8. The chassis of claim 7, further comprising:

9. The chassis of claim 1, wherein one end of the first rotating shaft and one end of the second rotating shaft are each provided with a hinge structure connected to a differential and a wheel, respectively.

10. Electric vehicle, characterized in that it comprises a chassis according to any of claims 1-9.