CN112248736B - Air spring suspension system - Google Patents

Abstract

The invention discloses an air spring suspension system, which comprises an air storage tank, an intake pipe, a bracket, a secondary elastic member, a height adjustment valve, a main elastic member, a shock absorber, a guide arm, an air bag, an exhaust pipe, an air pipe, an air Energy storage cylinder, first sliding rod, first sealing ring, first air guiding pipe, one-way valve, second sliding rod, second sealing ring, air guiding bucket, second air guiding pipe, telescopic column, connecting rod, gas storage Airbags, slides and telescoping poles. The invention can better cushion the folding of the air bag, effectively solve the problem that the air bag is easy to fold when the air spring suspension system is bumpy in bad road conditions, reduce the abnormal damage of the air bag, improve the practical life of the air bag and the safety of vehicle operation at the same time The working efficiency also enhances the practicability, and at the same time, the main elastic part and the secondary elastic part are supported and shock-absorbed when the guide arm swings.

Description

Air spring suspension system

technical field

The invention relates to a spring suspension system, in particular to an air spring suspension system, belonging to the technical field of semi-trailers.

Background technique

As the country's safety performance requirements for hazardous chemical transport vehicles increase, the air spring suspension system is forced to be used on hazardous chemical transport vehicles. Because of its good cushioning effect, the air spring suspension can improve the ride comfort of the vehicle and prolong the use of the vehicle. Lifespan, affected by road conditions, the air spring suspension system is prone to airbag folding when driving bumpy in bad road conditions, which seriously affects the practical life of the airbag. Therefore, an air spring suspension system is proposed to address the above problems.

Contents of the invention

The object of the present invention is to provide an air spring suspension system in order to solve the above problems.

The present invention achieves the above object through the following technical solutions. An air spring suspension system includes an air storage tank, a bracket, a height adjustment valve, an air bag and an air energy storage tank. The air storage tank, a bracket, a height adjustment valve, an air bag and The air energy storage cylinder is installed on the frame of the semi-trailer in turn from left to right. The inner chamber of the air storage cylinder communicates with the inner cavity of the air bag through the air intake pipe installed on the surface of the air storage cylinder. The inner wall of the air energy storage cylinder is installed with A telescopic rod arranged horizontally, the telescopic end of the telescopic rod is fixedly connected with a slide plate, and the slide plate is slidingly matched with the inner wall of the air storage cylinder, and an air storage air bag is installed at one end of the slide plate, and the air storage air bag is connected with the air storage air bag installed on the surface of the air bag The exhaust pipe is connected to the air delivery pipe, and the exhaust pipe is fixedly connected with the first air guide pipe arranged horizontally through the installation ring installed on the inner wall of the exhaust pipe, and a check valve is installed on the surface of the first air guide pipe. The inside of the exhaust pipe is installed with a first blocking assembly that blocks the first air guide tube, and the air delivery tube is equipped with a horizontally arranged second air guide tube through a safety swivel ring installed on the inner wall of the air delivery tube, and the second air guide tube One end is fixedly connected with an air guiding bucket, the inside of the air delivery tube is installed with a second blocking assembly that blocks the second air guiding tube, and the inner cavity of the air bag is equipped with a device that drives the first blocking assembly and the second blocking assembly to move in the horizontal direction. The horizontal adjustment assembly, the side wall of the bracket is hinged with a shock absorber and a guide arm in turn from top to bottom, one end of the shock absorber is connected to the axle of the semi-trailer, the other end of the guide arm is hinged with the air bag, and guides The middle section of the arm is connected to the axle of the semi-trailer, and a support assembly for auxiliary support of the guide arm is installed on the side wall of the bracket.

Preferably, the horizontal adjustment assembly is composed of a vertically arranged telescopic column and two connecting rods, the telescopic column is installed on the inner top end of the air bag, and the telescopic end of the telescopic column is connected to the inner bottom end of the air bag, and the two connected The connecting rods are all hinged on the telescopic column.

Preferably, the first blocking assembly is composed of a first sliding rod and a first sealing ring, the first sliding rod is connected to a slider that is slidingly fitted on the inner wall of the exhaust pipe, and one end of the first sliding rod is connected to the connecting One end of the rod is hinged, the first sealing ring is installed on one end of the first sliding rod and connected, and the diameter of the first sealing ring is equal to the inner diameter of the first airway tube.

Preferably, the second blocking assembly is composed of a second sliding rod and a second sealing ring, the second sliding rod is connected with a sliding block that is slidingly fitted on the inner wall of the gas delivery pipe, and one end of the second sliding rod is connected to the connecting rod One end is hinged, the second sealing ring is installed on one end of the second sliding rod and connected, and the diameter of the second sealing ring is equal to the inner diameter of the second airway tube.

Preferably, the support assembly is composed of a main elastic piece and a secondary elastic piece, the main elastic piece is hinged on the frame of the semi-trailer, the telescopic end of the main elastic piece is hinged with the guide arm, and the secondary elastic piece is hinged On the bracket, and the telescopic end of the secondary elastic part is hinged with the telescopic end of the main elastic part.

Preferably, both the telescopic column and the telescopic rod are composed of two sleeves and a return spring, and the two sleeves are elastically connected by the return spring.

Preferably, both the main elastic member and the auxiliary elastic member are composed of two sleeves and a support spring, and the two sleeves are elastically connected by the support spring.

The beneficial effects of the present invention are:

By making the telescopic column drive the first sliding rod and the second sliding rod to move to the right through the connecting rod, the first sliding rod drives the first sealing ring to move to the right and contact with the inner wall of the first air duct, so that the first sealing ring One air guide tube is blocked, and at the same time, the second sliding rod drives the second sealing ring to move to the right and contacts the inner wall of the second air guide tube, so that the second sealing ring blocks the second air guide tube, and at the same time the second sealing ring moves At the same time, the gas in the air bag is transported into the air storage air bag through the air delivery pipe. When the second sealing ring moves to the inside of the air guide bucket, the gas in the air air bag is transported into the air storage air bag through the air delivery pipe to slow down. Speed, so as to buffer the air bag, when the air bag is stretched rapidly, the first sliding rod and the second sliding rod drive the first sealing ring and the second sealing ring to reset, and at the same time make the gas in the air storage air bag Under the action of the telescopic rod, the acceleration is guided into the air bag through the exhaust pipe and the air pipe, so that it can better cushion the folding of the air bag, and effectively solve the problem that the air bag is easy to fold when the air spring suspension system is bumpy in bad road conditions. Reduce the abnormal damage of the airbag, improve the practical life of the airbag and the safety of vehicle operation, improve work efficiency and enhance the practicality at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is a schematic diagram of the cross-sectional structure of the exhaust pipe connection of the present invention;

Fig. 3 is the schematic diagram of the cross-sectional structure of the air pipe connection of the present invention;

Fig. 4 is a schematic diagram of the connection structure between the air bag and the air energy storage cylinder of the present invention.

In the figure: 1. Air reservoir, 2. Intake pipe, 3. Bracket, 4. Secondary elastic part, 5. Height adjustment valve, 6. Main elastic part, 7. Shock absorber, 8. Guide arm, 9. Air bag , 10. Exhaust pipe, 11. Air pipe, 12. Air accumulator, 13. The first slide rod, 14. The first sealing ring, 15. The first air guide pipe, 16. One-way valve, 17. The second Slide bar, 18, the second sealing ring, 19, air guiding bucket, 20, the second air guiding pipe, 21, telescopic column, 22, connecting rod, 23, air storage air bag, 24, slide plate, 25, telescopic rod.

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner" and "outer" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

Please refer to Figures 1-4, an air spring suspension system, including an air storage tank 1, a bracket 3, a height adjustment valve, an air bag 9 and an air storage tank 12, is characterized in that: the air storage tank 1, the bracket 3 , the height adjusting valve, the air bag 9 and the air accumulator 12 are sequentially installed on the frame of the semi-trailer from left to right. The inner cavity is connected, and the inner wall of the air energy storage cylinder 12 is equipped with a horizontally arranged telescopic rod 25, and the telescopic end of the telescopic rod 25 is fixedly connected with a slide plate 24, and the slide plate 24 is slidably matched with the inner wall of the air energy storage cylinder 12. One end of the slide plate 24 is equipped with an air storage air bag 23, and the air storage air bag 23 is connected with the exhaust pipe 10 and the air delivery pipe 11 installed on the surface of the air bag 9. The installation ring is fixedly connected with the first air guide tube 15 arranged horizontally, the surface of the first air guide tube 15 is equipped with a one-way valve 16, and the inside of the exhaust pipe 10 is installed with a first blockage for blocking the first air guide tube 15 Assemblies, the air delivery pipe 11 is equipped with a second air guide tube 20 arranged horizontally through a swivel ring installed on the inner side wall of the air delivery tube 11, and one end of the second air guide tube 20 is fixedly connected with an air guide bucket 19, and the air delivery tube The inner side of 11 is equipped with a second blockage assembly that blocks the second airway 20, and the inner cavity of the air bag 9 is equipped with a horizontal adjustment assembly that drives the first blockage assembly and the second blockage assembly to move in the horizontal direction. The bracket 3 The side wall is hinged with a shock absorber 7 and a guide arm 8 sequentially from top to bottom, one end of the shock absorber 7 is connected to the axle of the semi-trailer, the other end of the guide arm 8 is hinged with the air bag 9, and the middle of the guide arm 8 The section is connected to the axle of the semi-trailer, and a support assembly for auxiliary support of the guide arm 8 is installed on the side wall of the bracket 3 .

The horizontal adjustment assembly is composed of a vertically arranged telescopic column 21 and two connecting rods 22. The telescopic column 21 is installed on the inner top end of the air bag 9, and the telescopic end of the telescopic column 21 is connected with the inner bottom end of the air bag 9. The two connecting rods 22 are all hinged on the telescopic column 21; the first blocking assembly is composed of a first sliding rod 13 and a first sealing ring 14, and the first sliding rod 13 is slidably fitted on the exhaust pipe 10 The sliding block that the inner wall slides fits is connected, and one end of the first sliding rod 13 is hinged with one end of the connecting rod 22, and the first sealing ring 14 is installed on one end of the first sliding rod 13 to connect, and the diameter of the first sealing ring 14 is the same as that of the first sealing ring 14. The inner diameters of the air guide tubes 15 are equal to facilitate better sealing of the first sealing ring 14 to the second air guide tube 15; Rod 17 is connected with the sliding block that slidingly fits on the inner wall of air pipe 11, and one end of second sliding rod 17 is hinged with one end of connecting rod 22, and the second sealing ring 18 is installed on one end of second sliding rod 17 to connect, and the second The diameter of the second sealing ring 18 is equal to the inner diameter of the second air guide tube 20, which is convenient to make the second sealing ring 18 seal the second air guide tube 20 better; the supporting assembly is composed of the main elastic part 6 and the secondary elastic part 4, The main elastic part 6 is hinged on the vehicle frame of the semi-trailer, the telescopic end of the main elastic part 6 is hinged with the guide arm 8, the secondary elastic part 4 is hinged on the bracket 3, and the telescopic end of the secondary elastic part 4 Hinged with the telescopic end of the main elastic member 6; the telescopic column 21 and the telescopic rod 25 are composed of two sleeves and a return spring, and the two sleeves are elastically connected by the return spring; the main elastic member 6 and the secondary elastic Part 4 is composed of two sleeves and a support spring, and the two sleeves are elastically connected by the support spring, so as to better generate elastic force on the main elastic part 6 and the secondary elastic part 4 to support when the guide arm 8 swings damping.

When the present invention is in use, the electrical components appearing in this application are all externally connected to the power supply and the control switch. When the guide arm 8 drives the air bag 9 to shrink inwardly, the air bag 9 is compressed to the telescopic column 21, so that the telescopic column 21 Drive the first sliding rod 13 and the second sliding rod 17 to move to the right through the connecting rod 22, so that the first sliding rod 13 drives the first sealing ring 14 to move to the right and contact the inner wall of the first air duct 15, so that the first sealing ring The ring 14 blocks the first air guide tube 15, and at the same time, the second sliding rod 17 drives the second seal ring 18 to move to the right and contacts with the inner wall of the second air guide tube 20, so that the second seal ring 18 is opposite to the second air guide tube 20. Blocking is carried out, while the second sealing ring 18 moves, the gas in the air bag 9 is transported into the air storage air bag 23 through the air delivery pipe 11, and when the second sealing ring 18 moves to the inside of the air guide bucket 19, the air begins to slow down. The gas in the air bag 9 is transported into the air delivery speed in the air storage air bag 23 through the air delivery pipe 11, thereby the air bag 9 is buffered, and when the air bag 9 is stretched rapidly, the first slide bar 13 and the second slide bar Rod 17 drives the first sealing ring 14 and the second sealing ring 18 to reset, and the gas in the air storage air bag 23 is accelerated under the effect of the telescopic rod 25 to guide in the air bag 9 through the exhaust pipe 10 and the air delivery pipe 11, simultaneously Make the main elastic piece 6 and the secondary elastic piece 4 perform support and shock absorption when the guide arm 8 swings.

The circuits, electronic components and modules involved are all existing technologies, and those skilled in the art can fully implement them. Needless to say, the protected content of the present invention does not involve the improvement of software and methods.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and scope of the same elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (3)

1. The utility model provides an air spring suspension system, includes air receiver (1), support (3), height control valve, air bag (9) and air energy storage section of thick bamboo (12), its characterized in that: the air storage cylinder (1), the support (3), the height adjusting valve, the air bag (9) and the air energy storage cylinder (12) are sequentially installed on a frame of a semitrailer from left to right, an inner cavity of the air storage cylinder (1) is communicated with an inner cavity of the air bag (9) through an air inlet pipe (2) installed on the surface of the air storage cylinder (1), a telescopic rod (25) horizontally arranged is installed on the inner side wall of the air energy storage cylinder (12), a sliding plate (24) is fixedly connected with the telescopic rod (25), the sliding plate (24) is in sliding fit with the inner side wall of the air energy storage cylinder (12), the air bag (23) is installed at one end of the sliding plate (24), the air bag (23) is connected with an exhaust pipe (10) and an air pipe (11) installed on the surface of the air bag (9), the exhaust pipe (10) is fixedly connected with a first air guide pipe (15) horizontally arranged through an installation ring installed on the inner side wall of the exhaust pipe (10), a check valve (16) is installed on the surface of the first air guide pipe (15), a first blocking component for blocking the first air guide pipe (10) is installed on the inner side wall of the air guide pipe (11), a second air guide pipe (20) horizontally arranged on the inner side wall of a second air guide pipe (19) installed on the air guide pipe (11), a second blocking component for blocking a second air duct (20) is installed on the inner side of the air conveying pipe (11), a horizontal adjusting component for driving the first blocking component and the second blocking component to move in the horizontal direction is installed in the inner cavity of the air bag (9), a shock absorber (7) and a guide arm (8) are sequentially hinged to the side wall of the support (3) from top to bottom, one end of the shock absorber (7) is connected with an axle of a semitrailer, the other end of the guide arm (8) is hinged to the air bag (9), the middle section of the guide arm (8) is connected with the axle of the semitrailer, and a supporting component for supporting the guide arm (8) in an auxiliary mode is installed on the side wall of the support (3); the horizontal adjusting assembly consists of a telescopic column (21) and two connecting rods (22), the telescopic column (21) is vertically arranged on the top end of the inner side of the air bag (9), the telescopic end of the telescopic column (21) is connected with the bottom end of the inner side of the air bag (9), and the two connecting rods (22) are hinged to the telescopic column (21); the first blocking assembly is composed of a first sliding rod (13) and a first sealing ring (14), the first sliding rod (13) is connected with a sliding block which is in sliding fit with the inner wall of the exhaust pipe (10) in a sliding fit mode, one end of the first sliding rod (13) is hinged to one end of a connecting rod (22), the first sealing ring (14) is installed at one end of the first sliding rod (13) and connected with one end of the first sealing ring (14), and the diameter of the first sealing ring (14) is equal to the inner diameter of the first air guide pipe (15); the second blocking assembly consists of a second sliding rod (17) and a second sealing ring (18), the second sliding rod (17) is connected with a sliding block which is in sliding fit with the inner wall of the gas conveying pipe (11) in a sliding fit manner, one end of the second sliding rod (17) is hinged with one end of a connecting rod (22), the second sealing ring (18) is installed at one end of the second sliding rod (17) and connected, and the diameter of the second sealing ring (18) is equal to the inner diameter of the second gas guide pipe (20); the support assembly is composed of a main elastic part (6) and an auxiliary elastic part (4), the main elastic part (6) is hinged to a frame of the semitrailer, the telescopic end of the main elastic part (6) is hinged to the guide arm (8), the auxiliary elastic part (4) is hinged to the support (3), and the telescopic end of the auxiliary elastic part (4) is hinged to the telescopic end of the main elastic part (6).

2. An air spring suspension system according to claim 1, wherein: the telescopic column (21) and the telescopic rod (25) are composed of two sleeves and a return spring, and the two sleeves are elastically connected through the return spring.

3. An air spring suspension system according to claim 1, wherein: the main elastic part (6) and the auxiliary elastic part (4) are composed of two sleeves and supporting springs, and the two sleeves are elastically connected through the supporting springs.

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