CN210436957U

CN210436957U - Semitrailer self-adjustable axle lifting device

Info

Publication number: CN210436957U
Application number: CN201921124954.8U
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: 2020-05-01
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a semitrailer can self-modulation axletree hoisting device, including the vehicle chassis, the opposite side symmetry fixedly connected with second connecting seat of vehicle chassis lower surface, the equal fixedly connected with main shaft in both sides of two leaf springs, set up on the second connecting seat with main shaft matched with spout, one side of two main shafts all is provided with first otic placode, the top of first otic placode is connected with the lower fixed surface of vehicle chassis, bottom fixedly connected with connecting rod between two first otic placodes, the outer wall of connecting rod rotates and is connected with the backup pad, one side of first otic placode is provided with the gasbag. The utility model discloses utilize backup pad and gasbag matched with to set up the mode, can extrude one side of backup pad after expanding through the gasbag, make the other end of backup pad carry out ascending lifting with the main shaft, the leaf spring uses first connecting seat to rotate certain angle as the centre of a circle this moment, and then makes the wheel not contact with ground, is convenient for heighten the stability that the semitrailer travel, also can the reducing oil consumption.

Description

Semitrailer self-adjustable axle lifting device

Technical Field

The utility model relates to a semitrailer field, in particular to but semitrailer self-modulation axletree hoisting device.

Background

A semitrailer is a trailer whose axle is placed behind the center of gravity of the vehicle and which is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Semitrailers are generally three-axle semitrailers, and the types of semitrailers are divided into eleven-meter-bin-column semitrailers, thirteen-meter-bin semitrailers, low-bed semitrailers and the like. Is a heavy transport vehicle connected with a semitrailer head through a towing pin.

In the existing automobile trailer, the axle tire of a general trailer is always in contact with the ground no matter the automobile trailer is in a static state or is running. When the two-axle trailer turns, the wheels of the front axle and the rear axle roll and slide. When the semitrailer turns, the trailer tires on the second shaft of the semitrailer roll nearly purely, and when the three-shaft semitrailer turns, the tires on the first shaft and the third shaft roll and also slide transversely. This causes excessive wear of the sliding tires of the tires, increases the amount of fuel consumption of the vehicle during cornering, and is also liable to cause problems such as an influence on the running stability of the vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but semitrailer self-modulation axletree hoisting device to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a semitrailer self-adjustable axle lifting device comprises a chassis, wherein one side of the lower surface of the chassis is symmetrically and fixedly connected with a first connecting seat, the other side of the lower surface of the chassis is symmetrically and fixedly connected with a second connecting seat, plate springs are arranged between the first connecting seat and the second connecting seat, two sides of each plate spring are fixedly connected with a main shaft, two ends of each main shaft are movably and alternately connected with the first connecting seat and the second connecting seat, a sliding groove matched with the main shaft is formed in the second connecting seat, a first lug plate is arranged on one side of each main shaft, the top end of each first lug plate is fixedly connected with the lower surface of the chassis, a connecting rod is fixedly connected to the bottom between the two first lug plates, a supporting plate is rotatably connected to the outer wall of each connecting rod, an air bag is arranged on one side of each first lug plate and is positioned above one end of the corresponding supporting plate, one of the spindles is located above the other end of the support plate.

Preferably, the lower surface of vehicle bottom dish just is located one side fixedly connected with first air duct of gasbag, the gas guide hole has been seted up on the vehicle bottom dish and between being located gasbag and the first air duct.

Preferably, the top and the bottom of gasbag are all fixedly connected with fixing base, one of them the top and the vehicle bottom dish fixed connection of fixing base, and should the outside fixed cover of fixing base is equipped with the spacing ring, just the top and the vehicle bottom dish fixed connection of spacing ring.

Preferably, the middle part of the fixing seat is fixedly inserted with a second air duct, the inner cavity of the second air duct is communicated with the inner cavity of the air guide hole, and the outer wall of the second air duct is sleeved with at least two sealing rings.

Preferably, a clamping block is movably clamped at the top of the main shaft in the inner cavity of the sliding groove, and a second lug plate is fixedly connected to the bottom of the plate spring.

Preferably, the front and the back of the second connecting seat are rotatably connected with a rotating rod, and a baffle is fixedly sleeved on the outer wall of the rotating rod.

Preferably, the second connecting seat is provided with a fixing block fixedly connected below the rotating rod, one side of the fixing block is fixedly connected with a spring, and one end of the spring is fixedly connected with the baffle.

The utility model discloses a technological effect and advantage:

1. the utility model discloses utilize backup pad and gasbag matched with setting mode, through pouring into gas in to the inner chamber of gasbag, can extrude one side of backup pad after the gasbag expands, then the backup pad rotates with first otic placode as the centre of a circle, make the other end of backup pad carry out ascending lifting with the main shaft, the leaf spring rotates certain angle with first connecting seat as the centre of a circle at this moment, and then make the wheel not contact with ground, be convenient for heighten the stability that the semitrailer travel, also can reduce the oil consumption;

2. the utility model discloses utilize spring and baffle matched with to set up the mode, through the holding power of spring to the baffle, can fix the position of two baffles, two baffles of rethread are convenient for fix the relative position of fixture block and second connecting seat.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a schematic view of a second connecting seat of the present invention.

Fig. 3 is a schematic view of the structure of the air bag of the present invention.

In the figure: 1. a chassis; 2. a first connecting seat; 3. a second connecting seat; 4. a plate spring; 5. a main shaft; 6. a chute; 7. a first ear plate; 8. a support plate; 9. an air bag; 10. a first air duct; 11. an air vent; 12. a fixed seat; 13. a limiting ring; 14. a second air duct; 15. a clamping block; 16. a rotating rod; 17. a baffle plate; 18. a spring; 19. a second ear panel.

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 but semitrailer self-modulation axletree hoisting device as shown in fig. 1-3, including vehicle chassis 1, the first connecting seat 2 of a side symmetry fixedly connected with of vehicle chassis 1 lower surface, the second connecting seat 3 of the opposite side symmetry fixedly connected with of vehicle chassis 1 lower surface, be provided with leaf spring 4 between first connecting seat 2 and the second connecting seat 3, leaf spring 4's bottom fixedly connected with second otic placode 19, the cover is equipped with the axletree in the inner chamber of second otic placode 19.

The equal fixedly connected with main shaft 5 in both sides of two leaf springs 4, and two 5 both ends of main shaft and first connecting seat 2 and the equal activity interlude of second connecting seat 3 are connected, set up spout 6 with 5 matched with of main shaft on the second connecting seat 3, the top activity joint that just is located main shaft 5 in the inner chamber of spout 6 has fixture block 15, when the axletree need not promote, fixture block 15 can fix main shaft 5, prevent that main shaft 5 from rocking in the inner chamber of spout 6, improve main shaft 5's stability.

One side of two main shafts 5 all is provided with first otic placode 7, and the top of first otic placode 7 is connected with the lower fixed surface of vehicle bottom dish 1, the bottom fixedly connected with connecting rod between two first otic placodes 7, and the outer wall of connecting rod rotates and is connected with backup pad 8, through first otic placode 7 and backup pad 8, can utilize lever principle with the perk of main shaft 5.

One side of the first ear plate 7 is provided with an air bag 9, the air bag 9 is positioned above one end of the supporting plate 8, one of the main shafts 5 is positioned above the other end of the supporting plate 8, a first air duct 10 is fixedly connected with the lower surface of the chassis 1 and one side of the air bag 9, an air guide hole 11 is arranged on the chassis 1 and between the air bag 9 and the first air duct 10, the top and the bottom of the air bag 9 are fixedly connected with a fixed seat 12, the top end of one of the fixed seats 12 is fixedly connected with the chassis 1, and the outer part of the fixed seat 12 is fixedly sleeved with a limit ring 13, the top end of the limit ring 13 is fixedly connected with the chassis 1, the middle part of the fixed seat 12 is fixedly connected with a second air duct 14 in an inserting way, and the inner cavity of the second air duct 14 is communicated with the inner cavity of the air guide hole 11, the outer wall of the second air duct 14 is sleeved with at least two sealing rings, and air is conveniently introduced into the inner cavity of the air bag 9 through the first air duct 10.

The front and the back of second connecting seat 3 all rotate to be connected with bull stick 16, the fixed cover of outer wall of bull stick 16 is equipped with baffle 17, just be located the below fixedly connected with fixed block of bull stick 16 on the second connecting seat 3, one side fixedly connected with spring 18 of fixed block, and the one end and the baffle 17 fixed connection of spring 18, through the holding power of spring 18 to baffle 17, can fix the position of two baffles 17, two baffles 17 of rethread are convenient for fix the relative position of fixture block 15 and second connecting seat 3.

This practical theory of operation:

when the semitrailer suspension device is used, when an axle sleeved in the second lug plate 19 needs to be lifted upwards to a certain height to be separated from the ground, the two baffle plates 17 are rotated firstly, the baffle plates 17 are not fixed on the front side and the back side of the fixture block 15 any more, then the fixture block 15 is separated from the inner cavity of the chute 6, an external air pump is aligned to the inner cavity of the first air guide pipe 10, gas is injected into the inner cavity of the air bag 9 through the air guide hole 11, the air bag 9 can extrude one side of the supporting plate 8 after being expanded, then the supporting plate 8 rotates by taking the first lug plate 7 as the circle center, the main shaft 5 is lifted upwards by the other end of the supporting plate 8, at the moment, the plate spring 4 rotates by a certain angle by taking the first connecting seat 2 as the circle center, the axle is lifted upwards by a certain height, and then wheels are not.

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 but semitrailer self-modulation axle hoisting device, includes vehicle chassis (1), its characterized in that: the chassis is characterized in that a first connecting seat (2) is symmetrically and fixedly connected to one side of the lower surface of the chassis (1), a second connecting seat (3) is symmetrically and fixedly connected to the other side of the lower surface of the chassis (1), a plate spring (4) is arranged between the first connecting seat (2) and the second connecting seat (3), main shafts (5) are fixedly connected to two sides of the two plate springs (4), two ends of each main shaft (5) are movably and alternately connected with the first connecting seat (2) and the second connecting seat (3), a sliding groove (6) matched with each main shaft (5) is formed in the second connecting seat (3), a first lug plate (7) is arranged on one side of each main shaft (5), the top end of each first lug plate (7) is fixedly connected with the lower surface of the chassis (1), and a connecting rod is fixedly connected to the bottom between the two first lug plates (7), the outer wall of connecting rod rotates and is connected with backup pad (8), one side of first otic placode (7) is provided with gasbag (9), just gasbag (9) are located the top of backup pad (8) one end, one of them main shaft (5) are located the top of backup pad (8) other end.

2. A semitrailer self-adjustable axle lifting device according to claim 1, characterised in that: the lower surface of the chassis (1) is fixedly connected with a first air duct (10) on one side of the air bag (9), and an air guide hole (11) is formed in the chassis (1) and between the air bag (9) and the first air duct (10).

3. A semitrailer self-adjustable axle lifting device according to claim 1, characterised in that: the top and the bottom of gasbag (9) are equal fixedly connected with fixing base (12), one of them the top and vehicle chassis (1) fixed connection of fixing base (12), and this the outside fixed cover of fixing base (12) is equipped with spacing ring (13), just the top and vehicle chassis (1) fixed connection of spacing ring (13).

4. A semitrailer self-adjustable axle lifting device according to claim 3, characterised in that: the middle part of fixing base (12) is fixed to be interlude and is connected with second air duct (14), just the inner chamber of second air duct (14) communicates each other with the inner chamber of air guide hole (11), the outer wall cover of second air duct (14) is equipped with two at least sealing washers.

5. A semitrailer self-adjustable axle lifting device according to claim 1, characterised in that: the top activity joint that just is located main shaft (5) in the inner chamber of spout (6) has fixture block (15), the bottom fixedly connected with second otic placode (19) of leaf spring (4).

6. A semitrailer self-adjustable axle lifting device according to claim 1, characterised in that: the front and the back of the second connecting seat (3) are both rotatably connected with a rotating rod (16), and a baffle (17) is fixedly sleeved on the outer wall of the rotating rod (16).

7. A semitrailer self-adjustable axle lifting device according to claim 1, characterised in that: the fixing block is fixedly connected to the second connecting seat (3) and located below the rotating rod (16), a spring (18) is fixedly connected to one side of the fixing block, and one end of the spring (18) is fixedly connected with the baffle (17).