CN210478333U

CN210478333U - Semitrailer with air suspension lifted by single shaft

Info

Publication number: CN210478333U
Application number: CN201921125072.3U
Authority: CN
Inventors: 邹建勇
Original assignee: Nanchang Tuosheng Auto Parts Co Ltd
Current assignee: Nanchang Tuosheng Auto Parts Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-08
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a semitrailer of unipolar area lift air suspension, including axle and air spring bumper shock absorber, the air spring bumper shock absorber is fixed to be set up in the both sides on axle top, and the air inlet department fixed interlude that the air spring bumper shock absorber top was seted up is connected with the tube head, and a plurality of annular seal air bags of tracheal outer wall interval fixedly connected with, tracheal inner wall and annular seal air bag correspond position department and have seted up the inlet port, and the tube head inner wall seted up with annular seal air bag assorted seal groove, and outside between tube head and the trachea is equipped with spacing subassembly. The utility model discloses when utilizing the mode that sets up of annular seal gasbag, seal groove and inlet port to make air compressor pass through the trachea and let in gas in to the air spring bumper shock absorber, utilize gaseous extrusion force to bulge annular seal gasbag to guarantee the leakproofness when ventilating between the tube head on trachea and the air spring bumper shock absorber, improved the steady adjustment effect of half trailer automobile body of lift air suspension.

Description

Semitrailer with air suspension lifted by single shaft

Technical Field

The utility model relates to a semitrailer field, in particular to unipolar area promotes air suspension's semitrailer.

Background

At present, in order to improve the stability of a semitrailer running on different road surfaces or at different speeds, a lifting air suspension is mounted on the semitrailer and used for changing the height of the semitrailer body in different running states, so that the running stability of the semitrailer is ensured.

A lifting air suspension used by the existing single-axle semitrailer mainly comprises a distance sensor, an air compressor, an air spring shock absorber and other components, wherein the air spring shock absorber is fixed on two sides of an axle and used for supporting and connecting an automobile body chassis, and air is introduced into the air spring shock absorber through an air pipe by the air compressor, so that a spring in the air spring shock absorber automatically compresses or extends, and the ground clearance of the chassis is reduced or increased, so as to increase the running stability of the semitrailer, but the air inlet of the air spring shock absorber and the air pipe are sealed by adopting a sealing washer, the shaking generated by the reduction of the lifting of the semitrailer body easily causes the air pipe and the air inlet of the air spring shock absorber to be loosened to generate a gap, the sealing performance between the sealing washer and the air spring shock absorber and the air pipe is reduced, and the air spring shock absorber can also cause, the leakproofness of being connected between further reduction trachea and the air spring bumper shock absorber to reduce the adjustment effect that promotes air suspension and half trailer stationarity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a unipolar area promotes semitrailer of air suspension to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a semitrailer of unipolar area lift air suspension, includes axle and air spring bumper shock absorber, the air spring bumper shock absorber is fixed to be set up in the both sides on axle top, the fixed interlude of air inlet department that air spring bumper shock absorber top was seted up is connected with the tube head, the draw-in groove has been seted up to the tip of tube head inner wall, the tube head has the trachea through draw-in groove activity joint, a plurality of annular seal air bags of tracheal outer wall interval fixedly connected with, the inlet port has been seted up with annular seal air bag corresponding position department to tracheal inner wall, just the trachea passes through inlet port and annular seal air bag intercommunication, draw-in groove inner wall in the tube head corresponds position department with annular seal air bag and sets up with annular seal air bag assorted seal groove, outside between tube.

Preferably, spacing subassembly is including solid fixed ring, spacing ring and a plurality of dead lever, the outer wall threaded connection of solid fixed ring's inner wall and tube head, the spacing ring is fixed cup joints in tracheal outer wall, and is a plurality of the dead lever is that annular array is fixed to be set up between solid fixed ring and spacing ring.

Preferably, one side of spacing ring is equipped with the slip ring, the spout has been seted up to one side annular of spacing ring, the inner wall slip joint of spout has a plurality of protruding type sliders, and is a plurality of protruding type slider all with one side fixed connection of slip ring, it is a plurality of the one end of dead lever and one side fixed connection of solid fixed ring are a plurality of the other end of dead lever and the opposite side fixed connection of slip ring.

Preferably, the cross section of the annular sealing air bag is of a ball head type.

Preferably, a sealing gasket is fixedly connected to the joint of the pipe head and the end of the air pipe.

Preferably, the annular sealing bladder is made of elastic rubber.

The utility model discloses a technological effect and advantage:

1. the utility model can make the air compressor blow in air into the air spring shock absorber through the air pipe by utilizing the arrangement mode of the annular sealing air bag, the sealing groove and the air inlet hole, and the annular sealing air bag is blown in by utilizing the extrusion force of the air, thereby ensuring the sealing performance when the air is blown between the air pipe and the pipe head on the air spring shock absorber and improving the effect of improving the air suspension for stably adjusting the semi-trailer body;

2. the utility model discloses utilize the spacing subassembly that solid fixed ring, spacing ring and dead lever are constituteed to keep the parallel between trachea tip and the tube head and place for the air spring bumper shock absorber can be along with tube head synchronous motion when rocking from top to bottom along with the semitrailer automobile body, thereby prevents to wear and tear owing to rocking to appear between trachea and the tube head, has further improved the leakproofness between trachea and the air spring bumper shock absorber.

Drawings

Fig. 1 is the perspective structure diagram of the axle of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a front sectional structural schematic view of the tube head of the present invention.

Fig. 4 is an enlarged schematic structural diagram of fig. 3B according to the present invention.

Fig. 5 is an enlarged schematic structural diagram of fig. 3C according to the present invention.

In the figure: 1. an axle; 2. an air spring damper; 3. a pipe head; 4. an air tube; 5. a fixing ring; 6. a limiting ring; 7. a slip ring; 8. a convex slider; 9. a chute; 10. fixing the rod; 11. an annular air bag; 12. a sealing groove; 13. an air inlet; 14. a gasket is provided.

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 work belong to the protection scope of the present invention.

The utility model provides a semitrailer with a single shaft for lifting an air suspension as shown in figures 1-5, which comprises an axle 1 and an air spring damper 2, wherein the air spring damper 2 is fixedly arranged at two sides of the top end of the axle 1, an air inlet arranged at the top of the air spring damper 2 is fixedly and alternately connected with a tube head 3, a clamping groove is arranged at the end part of the inner wall of the tube head 3, which is convenient for alternate connection between the air tube 4 and the tube head 3, and simultaneously, the cavity of the tube head 3 is smaller than that of the air tube 4, so that the end part of the air tube 4 and the end part of the clamping groove can play a sealing role, the tube head 3 is movably clamped with an air tube 4 through the clamping groove, a sealing washer 14 is fixedly connected at the connecting position of the tube head 3 and the end part of the air tube 4, the sealing performance between the air tube 4 and the tube head 3 is, the annular sealing air bag 11 can be clamped with the sealing groove 12 when being inflated, a limiting and fixing effect is achieved, the connection stability between the air pipe 4 and the pipe head 3 is improved, the annular sealing air bag 11 is made of elastic rubber, the annular sealing air bag 11 has certain plasticity, the annular sealing air bag 11 can be conveniently clamped into the sealing groove 12 when the air pipe 4 is inserted into the pipe head 3, an air inlet hole 13 is formed in the position, corresponding to the annular sealing air bag 11, of the inner wall of the air pipe 4, the air pipe 4 is communicated with the annular sealing air bag 11 through the air inlet hole 13, the air in the annular sealing air bag 11 can not be exposed when air is ventilated by means of the arrangement of the air inlet hole 13 on the annular sealing air bag 11, and the sealing groove 12 matched with the annular sealing air bag 11 is formed in the position, corresponding to the annular sealing air bag;

the outer part between the tube head 3 and the air tube 4 is provided with a limiting component, the limiting component comprises a fixing ring 5, a limiting ring 6 and a plurality of fixing rods 10, the inner wall of the fixing ring 5 is in threaded connection with the outer wall of the tube head 3, the limiting ring 6 is fixedly sleeved on the outer wall of the air tube 4, the plurality of fixing rods 10 are fixedly arranged between the fixing ring 5 and the limiting ring 6 in an annular array mode, a fixing effect is achieved between the air tube 4 and the tube head 3, meanwhile, a supporting effect is achieved on the end portion of the air tube 4, the end portion of the air tube 4 is kept parallel to the tube head 3, one side of the limiting ring 6 is provided with a sliding ring 7, one side of the limiting ring 6 is provided with a sliding groove 9 in an annular mode, the sliding wall of the sliding groove 9 is clamped with a plurality of convex sliding blocks 8, the plurality of convex blocks 8 are all fixedly connected with one side of the sliding ring 7, one end of the plurality, the rotation of the fixing ring 5 on the cartridge 3 can be facilitated.

This practical theory of operation: when carrying out the connection between trachea 4 and tube head 3, insert the tip of trachea 4 in the draw-in groove of tube head 3 inner chamber, through rotating solid fixed ring 5, make solid fixed ring 5 carry out threaded connection through the screw thread that the inner wall was seted up and the screw thread that 3 outer walls of tube head were seted up, solid fixed ring 5 drives slip ring 7 through dead lever 10 when rotating simultaneously and rotates, slip ring 7 drives protruding type slider 8 and rotates in spout 9 when rotating, make solid fixed ring 5 fix on tube head 3 through rotating and drive spacing ring 6 and trachea 4 and remove to tube head 3 one end, thereby impress the tip of trachea 4 in the draw-in groove of tube head 3, when trachea 4 tip supports the draw-in groove tip, a plurality of annular seal air bags 11 block respectively in the seal groove 12 of corresponding position, transmit for air compressor after the processing of on-vehicle system according to the signal that distance sensor received of installation on the automobile body, air compressor lets in the gas through air spring bumper shock absorber 2 in the trachea 4 in The cavity utilizes gas to change internal pressure, thereby adjust the tensile state of the spring in the air spring shock absorber 2, realize the adjustment of semi-trailer body height, when gas enters into tube head 3 from trachea 4, some gas enters into annular sealed gasbag 11 from inlet port 13, make annular sealed gasbag 11 swell, with the seamless laminating of seal groove 12, and keep the card between trachea 4 and tube head 3 and with, thereby the leakproofness and the stability between trachea 4 and tube head 3 have been improved, make gas can improve tube head 3 completely from trachea 4 and enter into air spring shock absorber 2, and the elongation of the spring in air spring shock absorber 2 is influenced to the phenomenon that air leakage can not appear, also can adopt same mode to be connected at trachea 4 and air compressor's gas outlet simultaneously, improve the leakproofness between trachea 4 and the air compressor.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a single-axle area promotes semitrailer of air suspension, includes axle (1) and air spring bumper shock absorber (2), its characterized in that: the air spring shock absorbers (2) are fixedly arranged at two sides of the top end of the axle (1), a pipe head (3) is fixedly inserted and connected at an air inlet arranged at the top of the air spring shock absorber (2), the end part of the inner wall of the tube head (3) is provided with a clamping groove, the tube head (3) is movably clamped with an air pipe (4) through the clamping groove, the outer wall of the air pipe (4) is fixedly connected with a plurality of annular sealing air bags (11) at intervals, an air inlet (13) is arranged at the position of the inner wall of the air pipe (4) corresponding to the annular sealing air bag (11), and the air pipe (4) is communicated with the annular sealing air bag (11) through an air inlet hole (13), a sealing groove (12) matched with the annular sealing air bag (11) is arranged at the position of the inner wall of the clamping groove in the tube head (3) corresponding to the annular sealing air bag (11), the outside between tube head (3) and trachea (4) is equipped with spacing subassembly.

2. The semi-trailer of a single axle belt lifting air suspension as claimed in claim 1, characterized in that: spacing subassembly is including solid fixed ring (5), spacing ring (6) and a plurality of dead lever (10), the inner wall of solid fixed ring (5) and the outer wall threaded connection of tube head (3), spacing ring (6) are fixed cup joint in the outer wall of trachea (4), and are a plurality of dead lever (10) are that annular array is fixed to be set up between solid fixed ring (5) and spacing ring (6).

3. The semi-trailer of a single axle belt lifting air suspension as claimed in claim 2, characterized in that: one side of spacing ring (6) is equipped with slip ring (7), spout (9) have been seted up to one side annular of spacing ring (6), the inner wall slip joint of spout (9) has a plurality of protruding type slider (8), and is a plurality of protruding type slider (8) all with one side fixed connection of slip ring (7), it is a plurality of the one end of dead lever (10) and one side fixed connection of solid fixed ring (5), it is a plurality of the other end of dead lever (10) and the opposite side fixed connection of slip ring (7).

4. The semi-trailer of a single axle belt lifting air suspension as claimed in claim 1, characterized in that: the cross section of the annular sealing air bag (11) is of a ball head shape.

5. The semi-trailer of a single axle belt lifting air suspension as claimed in claim 1, characterized in that: and a sealing washer (14) is fixedly connected to the joint of the tube head (3) and the end part of the air tube (4).

6. The semi-trailer of a single axle belt lifting air suspension as claimed in claim 1, characterized in that: the annular sealing air bag (11) is made of elastic rubber.