CN216886142U

CN216886142U - Adjustable-axle-distance type truck air suspension system

Info

Publication number: CN216886142U
Application number: CN202220657631.0U
Authority: CN
Inventors: 戴海琛; 倪广森
Original assignee: Liangshan Yijie Automation Technology Co ltd
Current assignee: Liangshan Yijie Automation Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-05
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to the field of truck shock absorption buffer air suspensions, and discloses an axle distance adjustable truck air suspension system which comprises a truss, wherein the right side of the bottom end of the truss is fixedly connected with a support, the right end of the support is provided with an adjusting pad, the left end of the support is provided with a straight groove, a rotation stopping pad is arranged in each straight groove, the inner circumference of each rotation stopping pad is rotatably connected with a shaft pin, the bottom end of the support is fixedly connected with a lifting air bag, a pneumatic control valve is connected with a shaft bearing air bag through a pipeline, a pipeline filter is connected with a height valve through a pipeline, and the height valve is connected with the shaft bearing air bag through an offset four-way. In the utility model, the lifting system is only equipped on one or more axles, and the lifting air bags are inflated to deflate the supporting air bags to lift the axles, so that the tires leave the ground, the contact area between the tires and the ground is reduced, and the oil consumption is reduced.

Description

Adjustable-axle-distance type truck air suspension system

Technical Field

The utility model relates to the field of truck shock absorption buffer air suspensions, in particular to an axle distance adjustable truck air suspension system.

Background

According to the truck air suspension system, the height change of a truck body can be judged by a traveling computer according to different road conditions and signals of a distance sensor, and then an air compressor and an exhaust valve are controlled to automatically compress or extend a spring, so that the ground clearance of a chassis is reduced or increased, and the stability of a high-speed truck body or the trafficability of complex road conditions is improved.

The suspension parts of the existing trailer are generally plate spring type suspensions, and have the following disadvantages: firstly, in the structure of leaf spring formula suspension, vertical load is whole to be born by the leaf spring, so the vibration isolation nature of leaf spring formula suspension is poor, the ride comfort is not good and take advantage of and land the nature poor, also must whole axle work during empty car or low load, tire and ground area of contact are big, lead to the oil consumption too high, secondly general air suspension wheel base is not adjustable, the car in-process of traveling, the bolt is easy when axletree and freight train relative motion, the effect that leads to suspension system reduces, it is very inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an air suspension system of an axle-distance adjustable truck.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an axle distance adjustable nodal pattern freight train air suspension system, includes the truss, the equal fixedly connected with support in bottom right side of truss, the right-hand member of support all is provided with the adjustment pad, the left end of support all is provided with straight recess, all be provided with the pad of splining in the straight recess, the internal rotation of splining the pad is connected with the pivot, the equal fixedly connected with in bottom of support promotes the gasbag, it all is connected with the hand power valve through positive tee bend to promote the gasbag, the hand power valve is connected with the gas accuse valve through positive tee bend, the gas accuse valve all has the axle to bear the gasbag through the pipe connection, the hand power valve has the tube filter through pipe connection, the tube filter has the altitude valve through the pipe connection, the altitude valve all has the axle to bear the gasbag through partial four-way connection.

As a further description of the above technical solution:

the inner sides of the trusses are fixedly connected with short beams.

As a further description of the above technical solution:

the top ends of the shaft bearing air bags are fixedly connected to the bottom ends of the trusses.

As a further description of the above technical solution:

the pivot pin penetrates through the guide arm, the rotation stopping pad, the support and the adjusting pad in sequence, and a nut is connected to the right end of the pivot pin in a threaded mode.

As a further description of the above technical solution:

the pipeline filter is connected with a gate valve and an air storage cylinder through a positive tee.

As a further description of the above technical solution:

and a pressure gauge is arranged between the pipeline filter and the hand-pulling valve.

As a further description of the above technical solution:

the four-way valve is connected with a pneumatic control valve through a conduit.

As a further description of the above technical solution:

the equal fixedly connected with of right-hand member of support promotes the supporting seat, the equal fixedly connected with of left end of support promotes the direction support arm.

The utility model has the following beneficial effects:

1. according to the utility model, the brake valve is used for inflating, after the air is treated by the pipeline filter, one part of air uniformly enters the two lifting air bags through the hand-pulling valve, the lifting air bags are inflated and expanded, the other part of air uniformly enters the axle bearing air bags through the height valve, the stability and the balance of the suspension system are improved, the lifting system is only equipped on one or more axles, and the axles are lifted by inflating the lifting air bags and deflating the supporting air bags, so that the tires leave the ground, the contact area between the tires and the ground is reduced, the oil consumption is reduced, and the use is very convenient.

2. According to the utility model, the rotating shaft of the lifting guide support arm and the rotating shaft of the guide arm are not coaxial, the axle distance can be adjusted, the suspension bracket is sleeved with an elliptical hole, a straight groove is formed in the sleeve, the straight groove is symmetrical relative to the center of the sleeve, a rotation stopping pad and an adjusting pad are required to be matched with the axle pin during assembly, an inner hexagonal groove is additionally formed on the basis of the adjusting pad by the rotation stopping pad, the groove is matched with the head of the axle pin in size, the axle distance is increased by additionally arranging the adjusting pad, the number of the adjusting pads is increased according to requirements, the rotation stopping pad is arranged in the straight groove, and the straight groove plays a limiting role in limiting the rotation stopping pad, so that the axle pin is limited, the aim of preventing the axle pin from loosening is achieved, the normal work of a suspension system is ensured, and the use is very convenient.

Drawings

FIG. 1 is a perspective view of an air suspension system for an axle-distance adjustable truck according to the present invention;

FIG. 2 is a detailed view of a lifting air bag structure of an air suspension system of an axle-distance adjustable truck according to the present invention;

FIG. 3 is a detailed view of a support structure of an air suspension system of an axle-distance adjustable truck according to the present invention;

fig. 4 is a lifting gas path diagram of an air suspension system of an axle distance adjustable truck according to the present invention.

Illustration of the drawings:

1. a truss; 2. a short beam; 3. a shaft-carrying bladder; 4. a support; 5. lifting the supporting seat; 6. lifting the air bag; 7. lifting the guide support arm; 8. a guide arm; 9. a nut; 10. an adjustment pad; 11. a straight groove; 12. a rotation stopping pad; 13. a shaft pin; 14. a gate valve; 15. a positive tee; 16. an air cylinder; 17. a line filter; 18. a pressure gauge; 19. a hand-pulled valve; 20. a pneumatic control valve; 21. a partial four-way joint; 22. a height valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: an adjustable axle distance type air suspension system for a truck comprises a truss 1, wherein a support 4 is fixedly connected to the right side of the bottom end of the truss 1, the bottom end of the support 4 is concave, a lifting air bag 6 is convenient to place, adjusting pads 10 are arranged at the right ends of the support 4, straight grooves 11 are arranged at the left ends of the support 4, rotation stopping pads 12 are arranged in the straight grooves 11, axle pins 13 are connected to the inner circumferences of the rotation stopping pads 12 in a rotating mode, the positions of the straight grooves 11 are symmetrical relative to the center, the axle pins 13 are matched with the rotation stopping pads 12 and the adjusting pads 10 during assembly, hexagonal grooves are additionally formed in the rotation stopping pads 12 on the basis of the adjusting pads 10, the grooves are matched with the head sizes of the axle pins 13, the axle distance is increased by additionally arranging the adjusting pads 10, the number of the adjusting pads 10 is increased according to requirements, the rotation stopping pads 12 are arranged in the straight grooves 11, the straight grooves 11 play a limiting role in limiting, and further limit the axle pins 13, the purpose of preventing shaft pins 13 from loosening is achieved, the normal operation of a suspension system is ensured, lifting airbags 6 are fixedly connected to the bottom end of a support 4, the lifting airbags 6 are all connected with a hand-pulling valve 19 through a positive tee 15, the hand-pulling valve 19 is connected with a pneumatic control valve 20 through the positive tee 15, the pneumatic control valve 20 is all connected with a shaft bearing airbag 3 through a pipeline, the hand-pulling valve 19 is connected with a pipeline filter 17 through a pipe, the pipeline filter 17 is connected with a height valve 22 through a pipeline, the height valve 22 is all connected with the shaft bearing airbag 3 through a bias four-way valve 21, the air is inflated through a gate valve 14, after the air is processed by the pipeline filter 17, a part of air uniformly enters the two lifting airbags 6 through the hand-pulling valve 19, the lifting airbags 6 are inflated and expanded, the other part of air uniformly enters the shaft bearing airbags 3 through the height valve 22, the stability and the balance of the suspension system are improved, and the lifting system is only equipped on one or more axles, the axle is lifted by inflating the lifting air bag 6, so that the tire leaves the ground, the contact area between the tire and the ground is reduced, and the oil consumption is reduced.

The inner sides of the truss 1 are fixedly connected with the short beams 2, a plurality of short beams 2 are uniformly distributed, the structural strength is improved, the top end of the bearing gas-carrying bag 3 is fixedly connected with the bottom end of the truss 1, a shaft pin 13 sequentially penetrates through a guide arm 8, a rotation stopping pad 12, a support 4 and an adjusting pad 10, the right end of the shaft pin 13 is in threaded connection with a nut 9, a pipeline filter 17 is connected with a gate valve 14 and an air storage cylinder 16 through a positive tee 15, the gate valve 14 is connected with an inflation pipeline, the air storage cylinder 16 plays a buffering role, a pressure gauge 18 is arranged between the pipeline filter 17 and a hand-pulling valve 19, observe gas pressure through manometer 18, inclined to one side cross 21 all has gas accuse valve 20 through pipe connection, realizes the intercommunication that a plurality of axles bore gasbag 3, and the equal fixedly connected with in right-hand member of support 4 promotes supporting seat 5, and the equal fixedly connected with in left end of support 4 promotes direction support arm 7, promotes direction support arm 7 rotation axis and guide arm 8 rotation axis not coaxial.

The working principle is as follows: the air is inflated through a gate valve 14, after the air is processed through a pipeline filter 17, a part of air uniformly enters two lifting air bags 6 through a hand pull valve 19, the lifting air bags 6 are inflated and expanded, the other part of air uniformly enters a shaft bearing air bag 3 through a height valve 22, the stability and the balance of the suspension system are improved, the lifting system is only provided with one or more axles, the axles are lifted through inflating the lifting air bags 6, tires leave the ground, the contact area of the tires and the ground is reduced, the rotating shaft of a lifting guide support arm 7 and the rotating shaft of a guide arm 8 are not coaxial, the axle distance can be adjusted, a suspension support sleeve is an elliptical hole, a straight groove 11 is arranged on the sleeve, the position of the straight groove 11 is symmetrical relative to the sleeve center, a rotation stopping pad 12 and an adjusting pad 10 need to be matched with a shaft pin 13 during assembly, and an inner hexagonal groove is added on the adjusting pad 10 by the rotation stopping pad 12, the recess cooperatees with 13 head sizes of pivot, through increasing adjusting pad 10, has increased the wheel base, increases adjusting pad 10's quantity as required, ends and changes the pad 12 and install in straight recess 11, and straight recess 11 has played spacing effect to it, and then carries on spacingly to pivot 13, has reached the purpose that prevents that pivot 13 is not hard up, has guaranteed suspension system's normal work, and it is very convenient to use.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an adjustable pitch type freight train air suspension system of axle distance, includes truss (1), its characterized in that: the bottom right side of the truss (1) is fixedly connected with a support (4), the right end of the support (4) is provided with an adjusting pad (10), the left end of the support (4) is provided with a straight groove (11), the straight groove (11) is internally provided with a rotation stopping pad (12), the inner rotation of the rotation stopping pad (12) is connected with a shaft pin (13), the bottom end of the support (4) is fixedly connected with a lifting air bag (6), the lifting air bag (6) is connected with a hand-pull valve (19) through a positive tee joint (15), the hand-pull valve (19) is connected with a pneumatic control valve (20) through the positive tee joint (15), the pneumatic control valve (20) is connected with a shaft bearing air bag (3) through a pipeline, the hand-pull valve (19) is connected with a pipeline filter (17) through a conduit, the pipeline filter (17) is connected with a height valve (22) through a pipeline, the altitude valves (22) are connected with shaft bearing air bags (3) through four-way biasing pipes (21).

2. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the inner sides of the trusses (1) are fixedly connected with short beams (2).

3. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the top ends of the shaft bearing air bags (3) are fixedly connected to the bottom end of the truss (1).

4. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the shaft pin (13) penetrates through the guide arm (8), the rotation stopping pad (12), the support (4) and the adjusting pad (10) in sequence, and the right end of the shaft pin (13) is connected with a nut (9) in a threaded mode.

5. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the pipeline filter (17) is connected with a gate valve (14) and an air storage cylinder (16) through a tee joint (15).

6. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: and a pressure gauge (18) is arranged between the pipeline filter (17) and the hand-pulling valve (19).

7. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the four-way valve (21) is connected with a pneumatic control valve (20) through a conduit.

8. An air suspension system for an adjustable axle distance truck according to claim 1, wherein: the equal fixedly connected with of right-hand member of support (4) promotes supporting seat (5), the equal fixedly connected with of left end of support (4) promotes direction support arm (7).