CN212950024U

CN212950024U - Commercial vehicle chassis air suspension

Info

Publication number: CN212950024U
Application number: CN202020831457.8U
Authority: CN
Inventors: 逄健; 刘业刚; 李瑞龙
Original assignee: Shandong Meichen Industrial Group Co ltd
Current assignee: Shandong Meichen Industrial Group Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-04-13
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a commercial car chassis air suspension, including air spring, safety cover, fixed diaphragm, leading arm support, bumper shock absorber and lateral thrust pole, the safety cover is installed in the outside of air spring, the top of safety cover is installed and is leaned on right position in the bottom of frame, the top at fixed diaphragm is installed to the bottom of safety cover, the leading arm support mounting is leaned on left position in the bottom of frame, the head of leading arm is in the same place with the bottom installation of leading arm support, the afterbody of leading arm is in the same place with the bottom installation of fixed diaphragm, the bumper shock absorber is installed and is being located between left frame of safety cover and the axletree, lateral thrust pole is installed and is being located between left frame of bumper shock absorber and the axletree. The utility model discloses a safety cover effectively protects key spare part air spring, has enlarged traditional air suspension's application range, has improved the holistic reliability of air suspension, has prolonged air spring's life.

Description

Commercial vehicle chassis air suspension

Technical Field

The utility model relates to an automobile parts production technical field, a commercial car chassis air suspension specifically says so.

Background

With the implementation of national regulations and the pursuit of end users for the driving comfort of commercial vehicles, chassis air suspensions are increasingly being assembled and spread on heavy commercial vehicles.

The vehicle type that matches air suspension at present mainly has dangerization article cargo truck and trailer, triaxial storehouse bars trailer, triaxial breast board trailer and high-end tractor etc. and the good road surfaces such as highway, national road, provincial way are mostly gone up to above vehicle operation road conditions.

And for engineering dump trucks and vehicles with mountain roads as common road conditions, the air spring is easy to be involved in sand and stone or other fine foreign matters to cause air leakage and even explosion after abnormal wear of the bag skin due to the fact that the common road conditions are severe, and normal use and popularization of the air suspension under complex and severe road conditions are affected.

Disclosure of Invention

The utility model aims at providing a commercial car chassis air suspension.

In order to achieve the above purpose, the technical scheme of the utility model is that: a chassis air suspension of a commercial vehicle comprises a vehicle frame, a vehicle axle, air springs, a shock absorber and protective covers, wherein when the number of the air springs is two, the air suspension further comprises a fixed transverse plate, a guide arm and a guide arm support, two groups of protective covers are respectively arranged on the outer sides of the two groups of air springs, the tops of the two groups of protective covers are arranged at the bottom of the vehicle frame, the bottoms of the two groups of protective covers are arranged at the top of the fixed transverse plate, the guide arm support is arranged at the left position of the bottom of the vehicle frame, the head of the guide arm is arranged together with the bottom of the guide arm support, the tail of the guide arm is arranged together with the bottom of the fixed transverse plate, and the shock absorber is;

when air springs have four groups, above-mentioned air suspension still includes distance rod, stabilizer bar, distance rod support and stabilizer bar support and installs left arc board and right arc board in axletree lower left corner and lower right corner, distance rod support and stabilizer bar support are installed respectively and are leaned on the left and lean on the right position at the frame, install distance rod and stabilizer bar respectively in the bottom of distance rod support and stabilizer bar support, have two sets of installing between distance rod support and axletree among four groups of air springs, other two sets of installing between stabilizer bar support and axletree, install four groups of safety covers respectively in the outside of four groups of air springs above-mentioned.

Preferably, when the air springs are two groups, the protective cover comprises an upper connecting support, a rubber corrugated pipe and a lower connecting support, the upper connecting support is installed on the frame through a fixing bolt, the bottom of the lower connecting support is welded on a fixing transverse plate, and the rubber corrugated pipe is installed between the upper connecting support and the lower connecting support and covers the air springs.

Preferably, when the air springs are four groups, the protective cover comprises an upper connecting support, a rubber corrugated pipe and a lower connecting support, the upper connecting support is installed on the frame through a fixing bolt, the bottom of the lower connecting support is welded on the left arc plate and the right arc plate, and the rubber corrugated pipe is installed between the upper connecting support and the lower connecting support and covers the air springs.

Preferably, the head of the guide arm is a lifting lug, the bottom of the guide arm support is an assembly hole, and the lifting lug and the assembly hole are mounted together through a pin shaft.

Preferably, the rubber corrugated pipe is fixed with the joint of the upper connecting support and the lower connecting support through an annular hoop, so that the use condition of the air spring is convenient to disassemble and check.

Preferably, the rubber bellows is stretched and compressed to a length that satisfies the vertical stroke of the air spring.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a safety cover effectively protects key spare part air spring, has enlarged traditional air suspension's application range, has improved the holistic reliability of air suspension, has prolonged air spring's life.

Drawings

The present invention will now be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the second embodiment of the present invention.

Fig. 3 is a schematic view of the protective cover of the present invention.

In the figure: 1. frame air spring, 2, axletree safety cover, 3, air spring, 4, bumper shock absorber, 5, safety cover, 51, last linking bridge, 52, rubber bellows, 53, lower linking bridge, 54, fixing bolt, 55, annular clamp, 6, fixed diaphragm, 7, guide arm, 71, lug, 72, round pin axle, 8, guide arm support, 81, pilot hole, 9, thrust bar, 10, stabilizer bar, 11, thrust bar support, 12, stabilizer bar support, 13, left arc board, 14, right arc board.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 and 3, the utility model relates to a chassis air suspension for commercial vehicle, including frame 1, axletree 2, air spring 3, bumper shock absorber 4 and safety cover 5, fixed diaphragm 6, guiding arm 7 and guiding arm support 8, two sets of safety covers 5 are installed respectively to the outside of two sets of air springs 3, the top of two sets of safety covers 5 is installed in the bottom of frame 1, the bottom of two sets of safety covers 5 is installed at the top of fixed diaphragm 6, guiding arm support 8 is installed near the left position in the bottom of frame 1, the head of guiding arm 7 is installed together with the bottom of guiding arm support 8, the afterbody of guiding arm 7 is installed together with the bottom of fixed diaphragm 6, bumper shock absorber 4 is installed between frame 1 and axletree 2 that are located the left of safety cover 5;

the protective cover 5 comprises an upper connecting bracket 51, a rubber bellows 52 and a lower connecting bracket 53, the upper connecting bracket 51 is mounted on the vehicle frame 1 through a fixing bolt 54, the bottom of the lower connecting bracket 53 is welded on the fixing transverse plate 6, and the rubber bellows 52 is mounted between the upper connecting bracket 51 and the lower connecting bracket 53 and takes up the air spring 3.

The head of the guide arm 7 is a lifting lug 71, the bottom of the guide arm support 8 is a mounting hole 81, and the lifting lug 71 and the mounting hole 81 are mounted together through a pin 72.

The rubber bellows 52 is fixed with the joint of the upper connecting bracket 51 and the lower connecting bracket 53 through an annular hoop 55, so that the air spring 3 can be conveniently detached and checked in use.

The length of the rubber bellows 52 in stretching and compressing can satisfy the up-down stroke of the air spring 3.

Example two:

as shown in fig. 2 and 3, when air spring 3 has four groups, the utility model relates to a commercial car chassis air suspension, including frame 1, axletree 2, air spring 3, bumper shock absorber 4 and safety cover 5, distance rod 9, stabilizer bar 10, distance rod support 11 and stabilizer bar support 12 and install left arc board 13 and right arc board 14 in axletree 2 lower left corner and lower right corner, distance rod support 11 and stabilizer bar support 12 install respectively in frame 1 near left and near right position, install distance rod 9 and stabilizer bar 10 respectively in the bottom of distance rod support 11 and stabilizer bar support 12, have two sets of installing between distance rod support 11 and axletree 2 among four groups of air springs 3, two sets of installing between stabilizer bar support 12 and axletree 2 in addition, install four groups of safety covers 5 in the above-mentioned four groups of air springs 3's the outside respectively.

The protective cover 5 comprises an upper connecting support 51, a rubber corrugated pipe 52 and a lower connecting support 53, the upper connecting support 51 is installed on the frame 1 through a fixing bolt 54, the bottom of the lower connecting support 53 is welded on the left arc plate 13 and the right arc plate 14, and the rubber corrugated pipe 52 is installed between the upper connecting support 51 and the lower connecting support 53 and covers the air spring 3.

The working principle is as follows: the utility model discloses be in commercial car and go on working hours in-process, air spring 3 constantly compresses or tensile, switches between its stroke constantly downwards and upwards promptly, and rubber bellows 22 is made by elastic material, can stretch and compress, just satisfies air spring 3's last down stroke.

The foregoing is a detailed description of the present invention in connection with specific preferred embodiments, and it is not to be construed that the specific embodiments of the present invention are limited to those descriptions. To those skilled in the art to which the invention pertains, without departing from the spirit of the invention, several simple deductions or substitutions can be made, all of which should be considered as belonging to the scope of patent protection defined by the claims filed with the invention.

Claims

1. The utility model provides a commercial car chassis air suspension which characterized in that: comprises a frame (1), an axle (2), an air spring (3), a shock absorber (4) and a protective cover (5), when the air springs (3) are provided with two groups, the air suspension also comprises a fixed transverse plate (6), a guide arm (7) and a guide arm bracket (8), two groups of protective covers (5) are respectively arranged at the outer sides of the two groups of air springs (3), the tops of the two groups of protective covers (5) are arranged at the bottom of the frame (1), the bottoms of the two groups of protective covers (5) are arranged at the top of the fixed transverse plate (6), the guide arm bracket (8) is arranged at the left position of the bottom of the frame (1), the head of the guide arm (7) is installed with the bottom of the guide arm bracket (8), the tail part of the guide arm (7) is installed with the bottom of the fixed transverse plate (6), the shock absorber (4) is arranged between the frame (1) on the left side of the protective cover (5) and the axle (2);

when air spring (3) have four groups, above-mentioned air suspension still includes distance rod (9), stabilizer bar (10), distance rod support (11) and stabilizer bar support (12) and installs left arc board (13) and right arc board (14) in axletree (2) lower left corner and lower right corner, distance rod support (11) and stabilizer bar support (12) are installed respectively and are leaned on the left side and lean on the right position at frame (1), install distance rod (9) and stabilizer bar (10) respectively in the bottom of distance rod support (11) and stabilizer bar support (12), have two sets of installing between distance rod support (11) and axletree (2) in four groups of air spring (3), two sets of installing between stabilizer bar support (12) and axletree (2) in addition, install four groups of safety cover (5) respectively in the outside of above-mentioned four groups of air spring (3).

2. A commercial vehicle chassis air suspension according to claim 1, characterized in that: when there are two sets of air springs (3), protective cover (5) include linking bridge (51), rubber bellows (52) and lower linking bridge (53), it installs on frame (1) through fixing bolt (54) to go up linking bridge (51), the bottom welding of lower linking bridge (53) is on fixed diaphragm (6), rubber bellows (52) are installed between last linking bridge (51) and lower linking bridge (53) to cover air spring (3).

3. A commercial vehicle chassis air suspension according to claim 1, characterized in that: when air spring (3) have four groups, safety cover (5) include linking bridge (51), rubber bellows (52) and lower linking bridge (53), it installs on frame (1) through fixing bolt (54) to go up linking bridge (51), the bottom welding of lower linking bridge (53) is on left arc board (13) and right arc board (14), rubber bellows (52) are installed between last linking bridge (51) and lower linking bridge (53) to cover air spring (3).

4. A commercial vehicle chassis air suspension according to claim 1, characterized in that: the head of the guide arm (7) is a lifting lug (71), the bottom of the guide arm support (8) is an assembly hole (81), and the lifting lug (71) and the assembly hole (81) are mounted together through a pin shaft (72).

5. A commercial vehicle chassis air suspension according to claim 2 or 3, characterized in that: the rubber corrugated pipe (52) is fixed with the joint of the upper connecting support (51) and the lower connecting support (53) through an annular hoop (55), so that the air spring (3) can be conveniently detached and checked in use.

6. A commercial vehicle chassis air suspension according to claim 2 or 3, characterized in that: the length of the rubber corrugated pipe (52) in stretching and compressing can meet the up-down stroke of the air spring (3).