CN213566175U - Lightweight rear suspension assembly of cab of medium-weight truck - Google Patents
Lightweight rear suspension assembly of cab of medium-weight truck Download PDFInfo
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- CN213566175U CN213566175U CN202022450024.0U CN202022450024U CN213566175U CN 213566175 U CN213566175 U CN 213566175U CN 202022450024 U CN202022450024 U CN 202022450024U CN 213566175 U CN213566175 U CN 213566175U
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- lock body
- shock absorber
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Abstract
The utility model relates to a lightweight rear suspension assembly of a cab of a medium-weight truck, which comprises a lock body bracket provided with a lock body, a rear suspension upper bracket connected to the upper part of the lock body bracket through the lock body, a rear suspension lower bracket connected to the lower part of the lock body bracket and an air spring shock absorber; the rear suspension lower bracket is of a metal plate stamping integrated structure, is integrally triangular with a narrow upper part and a wide lower part, the upper part of the rear suspension lower bracket is hinged with one end of the lock body bracket, the inner side of the lower part of the rear suspension lower bracket is connected with the air spring shock absorber, and the outer side of the lower part of the rear suspension lower bracket is fixedly connected with the frame; and a pair of reinforcing angle plates are welded on the inner side of the lower part of the rear suspension lower bracket in a splicing manner, one surfaces of the reinforcing angle plates and the inner side surface of the rear suspension lower bracket are welded to form a reinforcing connecting surface connected with the frame, and the other surfaces of the reinforcing angle plates are used as mounting points of the lower end of a shock absorber connected with the lower part of the air spring shock absorber. The utility model discloses not only guarantee the reliable connection between driver's cabin and the frame, reach lightweight purpose simultaneously.
Description
Technical Field
The utility model relates to a suspension behind the driver's cabin, especially a suspension assembly behind lightweight well heavy truck driver's cabin belongs to suspension technical field behind the auttombilism room.
Background
With the high-speed development of national economy in China, truck drivers gradually tend to be younger, and with the improvement of road conditions in China, higher requirements on the comfort of commercial vehicles are also put forward at the customer level.
From the initial installation of the cab directly on the frame, which results in the direct transmission of vibration to the cab during the running of the vehicle, and poor riding comfort, to the initial addition of vibration isolation elements between the cab and the frame, the elastic elements of the suspension system undergo continuous development from rubber springs, coil springs, to hydraulic springs, and air springs.
The cab suspension is a mechanism for connecting a cab and a chassis, is used as an important ring of a vibration damping system of a commercial vehicle, plays roles in connecting and fixing the cab and guiding the movement of the cab, is used for buffering and attenuating impact, vibration and excitation from a road surface, the chassis and other active ends, improves the comfort of the cab, and requires no fracture failure phenomenon during the service life of the whole vehicle.
At present, the suspension mainstream structure of a cab of a heavy truck in China is a structure of a metal plate and a casting, and the number of castings is large.
Obviously, the advantages of castings in the aspects of price, weight, energy absorption and environmental protection are far from the advantages of sheet metal parts, most of the castings are suspended when the whole vehicle collides, the suspension energy absorption effect is too poor, the cab and passengers cannot be well protected, the energy conservation, emission reduction and light weight of the whole vehicle become one of the primary targets of various large host factories, and the switching of the sheet metal parts of the castings is a good entry point.
Disclosure of Invention
The utility model aims at providing a suspension assembly behind lightweight well heavy truck driver's cabin, this suspension behind driver's cabin can reduce the total mass of suspension behind the driver's cabin when guaranteeing that driver's cabin and chassis are reliably connected, reaches lightweight purpose.
In order to solve the above problems, the utility model adopts the following technical scheme:
a lightweight rear suspension assembly of a cab of a medium and heavy truck comprises a lock body bracket provided with a lock body, a rear suspension upper bracket connected to the upper part of the lock body bracket through the lock body, a rear suspension lower bracket connected to the lower part of the lock body bracket and an air spring shock absorber; it is characterized in that the device is characterized in that,
the rear suspension lower support adopts a sheet metal stamping integrated structure, is integrally triangular with a narrow upper part and a wide lower part, the upper part of the rear suspension lower support is hinged with one end of the lock body support, the inner side of the lower part of the rear suspension lower support is connected with the air spring shock absorber, and the outer side of the lower part of the rear suspension lower support is fixedly connected with the frame;
and a pair of reinforcing angle plates are welded on the inner side of the lower part of the rear suspension lower bracket in a splicing manner, one surfaces of the reinforcing angle plates and the inner side surface of the rear suspension lower bracket are welded to form a reinforcing connecting surface connected with the frame, and the other surfaces of the reinforcing angle plates are used as mounting points of the lower end of a shock absorber connected with the lower part of the air spring shock absorber.
The lock body adopts a locking and opening control mode taking hydraulic pressure as power, and structurally comprises a locking claw and a rotating clamping plate which are rotatably arranged on a lock body support, wherein one side of the locking claw is driven and controlled by a hydraulic control cylinder, the other side of the locking claw is in linkage fit with the rotating clamping plate, and the locking or unlocking of the rear suspension upper support is completed through the cooperation of the locking claw and the rotating clamping plate.
The air spring shock absorber is obliquely connected between the lock body support and the rear suspension lower support, a height adjusting valve is arranged on one side of the air spring shock absorber in a matched mode, a main body of the height adjusting valve is horizontally arranged on the rear suspension lower support, one end of the height adjusting valve is connected to the lock body support through a leveling part, the height adjusting valve is communicated with the automobile air storage pump through a first pipeline and used for receiving compressed air from the automobile air storage pump, and the height adjusting valve is communicated with the air spring shock absorber through a second pipeline and used for conveying the compressed air to the air spring shock absorber.
The air spring shock absorber structurally comprises connecting sleeves at two ends and a spring air bag in the middle, wherein the connecting sleeve at the upper end is fixedly hung at the mounting point at the upper end of the shock absorber on one side of the lock body support, and the connecting sleeve at the lower end is fixedly hung at the mounting point at the lower end of the shock absorber of the rear suspension support.
The middle part of the rear suspension lower support is provided with a lightening hole in a hollow design, and the back side edge of the lightening hole is provided with a reinforcing rib.
The utility model discloses a suspension assembly behind heavy truck driver's cabin in lightweight has carried out the optimal arrangement to back suspension each arrangement point (the tie point of tie point, bumper shock absorber and back suspension lower carriage including bumper shock absorber and lock body upper bracket, the tie point of back suspension lower carriage and lock body support), absorption ground excitation or the vibration of initiative end that can the at utmost. The cab and the frame chassis are reliably connected together, the total mass of the rear suspension of the cab is reduced to the maximum extent, and the aim of light weight is fulfilled.
Drawings
Fig. 1 is a schematic view of a first angle structure of a rear suspension of a cab of a medium heavy truck (without a rear suspension upper bracket) according to a first embodiment;
fig. 2 is a schematic structural view of a second angle of the rear suspension of the cab of the medium heavy truck (without a rear suspension upper bracket) in the first embodiment;
fig. 3 is a schematic view of a first angle structure of a rear suspension of a cab of a medium heavy truck (with a rear suspension upper bracket) according to a first embodiment;
fig. 4 is a schematic structural view of a second angle of the rear suspension of the cab of the medium heavy truck (with a rear suspension upper bracket) in the first embodiment;
FIG. 5 is a schematic view of a rear suspension lower bracket structure;
FIG. 6 is a schematic view of a lock body;
in the figure, 1, a rear suspension upper bracket, 2, a lock body bracket, 21, a locking notch position, 3, a rear suspension lower bracket, 31, a reinforcing angle plate, 32, a lightening hole, 33, a reinforcing rib, 34, a connecting part, 4, an air spring shock absorber, 5, a height adjusting valve, 61, a locking claw, 62, a rotating clamping plate, 7, a hydraulic control cylinder, 8 and a leveling part.
Detailed Description
The technical solutions of the embodiments of the present application are clearly and completely described below with reference to the drawings of the present application, and the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments.
Example one
The main structure of the lightweight rear suspension assembly for the cab of the medium and heavy truck in the embodiment is composed of a rear suspension upper support 1, a lock body support 2, a lock body, a rear suspension lower support 3 and an air spring shock absorber 4; the lock body is arranged at a lock opening position 21 formed in the lock body support 2, the upper portion of one end of the lock body support 2 is connected with a rear suspension upper support 1 used for being connected with a cab through the lock body, and the lower portion of the other end of the lock body support 2 is connected with a rear suspension lower support 3 used for being connected with a frame. The lock body adopts a locking and unlocking control mode taking hydraulic pressure as power, and structurally comprises a locking claw 61 and a rotating clamping plate 62 which are rotatably arranged on a lock body support 2, one side of the locking claw 61 is driven and controlled by a hydraulic control cylinder 7, the other side of the locking claw 61 is in linkage fit with the rotating clamping plate 62, and the locking or unlocking of the rear suspension upper support 1 is completed through the cooperation of the locking claw 61 and the rotating clamping plate 62. The air spring shock absorber 4 is obliquely connected between the lock body support 2 and the rear suspension lower support 3, a height adjusting valve 5 is arranged on one side of the air spring shock absorber 4 in a matched mode, a main body of the height adjusting valve 5 is horizontally arranged on the rear suspension lower support 3, one end of the height adjusting valve is connected to the lock body support 2 through a leveling part 8, the height adjusting valve 5 is communicated with the automobile air storage pump through a first pipeline and used for receiving compressed air from the automobile air storage pump, and the height adjusting valve 5 is communicated with the air spring shock absorber 4 through a second pipeline and used for conveying the compressed air to the air spring shock absorber 4. The rear suspension lower support 3 is of a metal plate stamping integrated structure, the whole structure is of a triangular structure with a narrow top and a wide bottom, the upper portion of the structure is hinged to one end of the lock body support 2 through a connecting portion 34, the inner side of the lower portion of the structure is connected with the air spring shock absorber 4, the outer side of the lower portion of the structure is fixedly connected with a vehicle frame through a mounting hole, a lightening hole 32 with a hollowed design is formed in the middle of the structure, and a reinforcing rib 33 is arranged at the. The rear suspension lower support of the embodiment adopts the metal plate integrated piece to replace a traditional casting, so that the weight of the whole rear suspension can be greatly reduced, and the cost is also more advantageous. A shock absorber upper end mounting point is configured at one end of the lock body support, a shock absorber lower end mounting point is configured at the inner side of the lower part of the rear suspension lower support 3 in a tailor welding connection mode, the air spring shock absorber 4 structurally comprises connecting sleeves at two ends and a spring air bag in the middle, the connecting sleeve at the upper end is fixedly hung at the shock absorber upper end mounting point at one side of the lock body support 2, the connecting sleeve at the lower end is fixedly hung at the shock absorber lower end mounting point of the rear suspension support 3, the shock absorber lower end mounting point is a reinforced angle plate 31, one surface of the reinforced angle plate 31 is welded with the inner side surface of the rear suspension lower support 3, and the other surface of the reinforced angle plate 31 is fixedly connected with the lower end connecting sleeve of the air; therefore, the reinforcing gusset 31 not only serves to mount the air spring damper, but also serves as a mounting surface for connection to the vehicle frame, thereby serving to reinforce the connection between the rear suspension lower bracket and the vehicle frame. The mounting point at the upper end of the shock absorber is also provided with a mounting shaft rod, and the connecting sleeve at the upper end of the air spring shock absorber is fixedly connected with the mounting shaft rod in a hanging manner.
The rear suspension assembly of the cab of the light medium-weight truck is characterized in that a lock body support, a shock absorber, a rear suspension lower support and a height adjusting valve are mounted together, and the lock body and the upper suspension upper support of the cab mounted on a truck body are connected into a whole, so that the cab is protected, supported and connected, and the shock absorption effect is achieved. Contrast traditional foundry goods after-suspension, the driver's cabin after-suspension lower carriage of this embodiment is adopted but outside the bumper shock absorber lower extreme mounting point is the panel beating tailor-welded part, and the lower carriage main part is panel beating punching press integral type structure, and this structure is compared traditional foundry goods and is obvious in the aspect of weight, price etc. has very obvious improvement to the whole car lightweight. In addition, because the air spring bumper shock absorber lower extreme of this embodiment is wide with the rear suspension lower carriage contact surface, welding deformation is little, the performance structural strength that can be abundant makes stress evenly distributed.
Adopt the utility model discloses the whole car of suspension behind the driver's cabin, march, the braking, turn, the brake, in-process such as with higher speed, the suspension can receive driver's cabin and frame at the effort of whole car X, Y, Z three direction behind the driver's cabin, satisfy whole car operation requirement because of back suspension bulk strength, failure conditions such as fracture can not appear, the excitation finally can be through on frame and the transmission of back suspension lower carriage to the air spring bumper shock absorber, cause spring airbag compression or extension, when gasbag internal pressure changes, altitude mixture control valve can begin to act on, the regulation gasbag of initiative fills the gassing, make the driver's cabin reply balanced, reach absorbing effect.
With the back suspension after the support change panel beating punching press integrative piece into by traditional foundry goods, can realize:
firstly, the energy absorption effect is more obvious, and passengers and a cab can be better protected when the whole vehicle collides;
secondly, the weight, the cost and the environmental protection are more advantageous;
thirdly, the surrounding space is increased, and other systems can be conveniently arranged;
fourthly, the usable surface is enlarged, the welding performance is improved, and the overall strength can be ensured after welding.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. A lightweight rear suspension assembly of a cab of a medium and heavy truck comprises a lock body bracket provided with a lock body, a rear suspension upper bracket connected to the upper part of the lock body bracket through the lock body, a rear suspension lower bracket connected to the lower part of the lock body bracket and an air spring shock absorber; it is characterized in that the preparation method is characterized in that,
the rear suspension lower support adopts a sheet metal stamping integrated structure, is integrally triangular with a narrow upper part and a wide lower part, the upper part of the rear suspension lower support is hinged with one end of the lock body support, the inner side of the lower part of the rear suspension lower support is connected with the air spring shock absorber, and the outer side of the lower part of the rear suspension lower support is fixedly connected with the frame;
and a pair of reinforcing angle plates are welded on the inner side of the lower part of the rear suspension lower bracket in a splicing manner, one surfaces of the reinforcing angle plates and the inner side surface of the rear suspension lower bracket are welded to form a reinforcing connecting surface connected with the frame, and the other surfaces of the reinforcing angle plates are used as mounting points of the lower end of a shock absorber connected with the lower part of the air spring shock absorber.
2. A light weight cab rear suspension assembly for a medium weight truck as set forth in claim 1,
the lock body adopts a locking and opening control mode taking hydraulic pressure as power, and structurally comprises a locking claw and a rotating clamping plate which are rotatably arranged on a lock body support, wherein one side of the locking claw is driven and controlled by a hydraulic control cylinder, the other side of the locking claw is in linkage fit with the rotating clamping plate, and the locking or unlocking of the rear suspension upper support is completed through the cooperation of the locking claw and the rotating clamping plate.
3. A light weight cab rear suspension assembly for a medium weight truck as set forth in claim 1,
the air spring shock absorber is obliquely connected between the lock body support and the rear suspension lower support, and one side of the air spring shock absorber is provided with a height adjusting valve in a matched mode.
4. A light weight cab rear suspension assembly for a medium weight truck as set forth in claim 3,
the height adjusting valve is horizontally arranged on the rear suspension lower support, one end of the height adjusting valve is connected to the lock body support through the leveling piece, the height adjusting valve is communicated with the automobile air storage pump through a first pipeline and used for receiving compressed air from the automobile air storage pump, and the height adjusting valve is communicated with the air spring shock absorber through a second pipeline and used for conveying the compressed air to the air spring shock absorber.
5. A light weight cab rear suspension assembly for a medium weight truck as set forth in claim 1,
the air spring shock absorber structurally comprises connecting sleeves at two ends and a spring air bag in the middle, wherein the connecting sleeve at the upper end is fixedly hung at the mounting point at the upper end of the shock absorber on one side of the lock body support, and the connecting sleeve at the lower end is fixedly hung at the mounting point at the lower end of the shock absorber of the rear suspension support.
6. A light weight cab rear suspension assembly for a medium weight truck as set forth in claim 1,
the middle part of the rear suspension lower support is provided with a lightening hole in a hollow design, and the back side edge of the lightening hole is provided with a reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022450024.0U CN213566175U (en) | 2020-10-29 | 2020-10-29 | Lightweight rear suspension assembly of cab of medium-weight truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022450024.0U CN213566175U (en) | 2020-10-29 | 2020-10-29 | Lightweight rear suspension assembly of cab of medium-weight truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213566175U true CN213566175U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022450024.0U Active CN213566175U (en) | 2020-10-29 | 2020-10-29 | Lightweight rear suspension assembly of cab of medium-weight truck |
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| Country | Link |
|---|---|
| CN (1) | CN213566175U (en) |
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- 2020-10-29 CN CN202022450024.0U patent/CN213566175U/en active Active
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Address after: No.99 Fushan Road, Laiyang Economic Development Zone, Yantai City, Shandong Province Patentee after: Weichai New Energy Commercial Vehicle Co.,Ltd. Address before: No.99 Fushan Road, Laiyang Economic Development Zone, Yantai City, Shandong Province Patentee before: Shandong Automobile Manufacturing Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |