CN212529598U

CN212529598U - Automatic brake device for trailer

Info

Publication number: CN212529598U
Application number: CN202020919061.9U
Authority: CN
Inventors: 任运华; 雷燕
Original assignee: Luzhou Haoyu New Energy Vehicle Co ltd
Current assignee: Luzhou Haoyu New Energy Vehicle Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-12
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses an automatic brake equipment is used to trailer belongs to trailer technical field, including the trailer main part, the bottom of trailer main part is fixed with a plurality of mounting brackets, the inside of a plurality of mounting brackets is connected with the universal wheel through the pivot, electric putter is installed to the inside top of a plurality of mounting brackets, electric putter's output is connected with the braking vane, this automatic brake equipment is used to trailer is provided with buffer spring, bearing plate and shock attenuation gasbag, brake equipment brake when the trailer is too late often, the shock attenuation gasbag can tentatively contact with the tractor, thereby shock attenuation gasbag deformation carries out the shock attenuation, the shock attenuation gasbag can make the buffer spring compression through the bearing plate simultaneously, further make the impact obtain the buffering, and then make between trailer and the tractor be difficult for bumping, the untimely condition that leads to bumping with the tractor afterbody when having avoided the trailer brake.

Description

Automatic brake device for trailer

Technical Field

The utility model relates to a trailer technical field specifically is an automatic brake equipment for trailer.

Background

The train composed of the tractor and the flat trailer has high efficiency in short-distance transportation, and is widely applied to material transportation places such as warehouses, stations, airports, docks, factories and the like.

Current trailer can be pulled by the tractor in the use, when tractor emergency braking, because the synchronous brake of trailer is untimely, makes trailer front end and tractor afterbody bump easily, leads to bringing the potential safety hazard, and the general conflict friction of brake block to the tire of trailer brake mode accomplishes the speed reduction for the brake is not enough rapid stabilization.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic brake device for trailer to propose among the above-mentioned background art that the trailer brake untimely leads to bumping with the tractor afterbody and the not fast and stable's of trailer brake problem inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic brake device for a trailer comprises a trailer main body, wherein a plurality of mounting frames are fixed at the bottom of the trailer main body, universal wheels are connected inside the mounting frames through rotating shafts, an electric push rod is arranged above the inside of the mounting frames, the output end of the electric push rod is connected with a brake plate, both sides of the interior of the trailer main body are connected with bearing plates through buffer springs, a damping air bag penetrating to the outer side of the trailer body is fixed on one side of the pressure bearing plate away from the buffer spring, the middle parts of the two sides of the trailer main body are respectively provided with a fixing ring, the interior of the trailer main body is respectively provided with a first cylinder, a second cylinder and a third cylinder, the output of first cylinder, second cylinder and third cylinder all is connected with the speed reduction board through the piston rod that runs through to trailer main part bottom, the bottom of speed reduction board is fixed with the abrasionproof pad.

Preferably, the brake plate is arc-shaped and is positioned above the universal wheel.

Preferably, the shock absorption air bag is circular, and the shock absorption air bag is connected with the side wall of the trailer main body in a sliding mode.

Preferably, the length of the piston rod connected with the output ends of the first cylinder, the second cylinder and the third cylinder is gradually increased.

Preferably, the bottom of the anti-abrasion pad is rough, and the anti-abrasion pad is made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the automatic brake device for the trailer is provided with the buffer spring, the bearing plate and the damping air bag, when the brake device of the trailer brakes untimely, the damping air bag can be in initial contact with the tractor, the damping air bag deforms to damp, meanwhile, the damping air bag can compress the buffer spring through the bearing plate to further buffer the impact force, so that the trailer and the tractor are not easy to collide, and the condition that the trailer collides with the tail part of the tractor when the brake is untimely is avoided, meanwhile, the automatic brake device for the trailer is provided with the electric push rod, the brake plate, the first air cylinder, the second air cylinder, the third air cylinder, the speed reduction plate and the anti-abrasion pad, when the trailer brakes in a speed reduction way, the electric push rod can push the brake plate to be in contact with the universal wheel, so that the universal wheel is subjected to friction to perform initial speed reduction, and the first air cylinder, the second air cylinder and the third air cylinder can make, let abrasionproof pad and ground production friction for the trailer further accomplishes the speed reduction brake, and because the length of the piston rod that first cylinder, second cylinder and third cylinder output are connected progressively increases, make the trailer speed reduction in-process more stable, avoided the not fast and stable's of trailer brake condition inadequately.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a section of the trailer body of the present invention;

FIG. 3 is a schematic side view of the trailer body of the present invention;

fig. 4 is a schematic diagram of a partially enlarged structure of the present invention a.

In the figure: 1. a trailer body; 2. a mounting frame; 3. a rotating shaft; 4. a universal wheel; 5. a fixing ring; 6. a shock-absorbing air bag; 7. a pressure bearing plate; 8. a buffer spring; 9. a first cylinder; 10. a second cylinder; 11. a third cylinder; 12. a piston rod; 13. a speed reduction plate; 14. an anti-wear pad; 15. an electric push rod; 16. a brake plate.

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.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, and the two elements may be connected internally or in an interaction relationship, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: an automatic brake device for a trailer comprises a trailer main body 1, mounting frames 2, a rotating shaft 3, universal wheels 4, fixing rings 5, damping air bags 6, a bearing plate 7, buffer springs 8, a first air cylinder 9, a second air cylinder 10, a third air cylinder 11, a piston rod 12, a speed reducing plate 13, an anti-abrasion pad 14, an electric push rod 15 and a brake plate 16, wherein the bottom of the trailer main body 1 is fixedly provided with a plurality of mounting frames 2, the interiors of the mounting frames 2 are connected with the universal wheels 4 through the rotating shaft 3, the electric push rod 15 is arranged above the interiors of the mounting frames 2, the output end of the electric push rod 15 is connected with the brake plate 16, the two sides of the interior of the trailer main body 1 are respectively connected with the bearing plate 7 through the buffer springs 8, one side of the bearing plate 7, which is far away from the buffer springs 8, is fixedly provided with the damping air bags 6 which penetrate through, the staff can make the trailer be connected with the tractor through using the haulage rope to tie up on solid fixed ring 5, and the inside of trailer main part 1 is provided with first cylinder 9, second cylinder 10 and third cylinder 11 respectively, and the output of first cylinder 9, second cylinder 10 and third cylinder 11 all is connected with speed reduction plate 13 through running through to the piston rod 12 of trailer main part 1 bottom, and the bottom of speed reduction plate 13 is fixed with abrasionproof pad 14.

Referring to fig. 1-4, the braking plate 16 is arc-shaped, and the braking plate 16 is located above the universal wheel 4, so that the braking plate 16 is in surface contact with the universal wheel 4, the damping airbag 6 is circular, and the damping airbag 6 is slidably connected with the side wall of the trailer body 1, so that the damping airbag 6 can perform deformation damping.

Referring to fig. 2, the lengths of the piston rods 12 connected to the output ends of the first, second, and

third cylinders

9, 10, and 11 are gradually increased, so that the push-out lengths of the piston rods 12 are different, the generated forces are different, the bottoms of the anti-wear pads 14 are rough, and the anti-wear pads 14 are made of rubber, so that the anti-wear pads 14 have higher friction performance and can be decelerated better.

The working principle is as follows: firstly, when the trailer is to be decelerated and braked, the electric push rod 15 can push the brake plate 16 to contact with the universal wheel 4, so that the universal wheel 4 is subjected to friction to perform preliminary deceleration, the first cylinder 9, the second cylinder 10 and the third cylinder 11 can make the speed reduction plate 13 contact with the ground through the piston rod 12, and the anti-abrasion pad 14 generates friction with the ground, so that the trailer further completes deceleration and braking, and because the lengths of the piston rods 12 connected with the output ends of the first cylinder 9, the second cylinder 10 and the third cylinder 11 are gradually increased, so that the friction force of the speed reduction plate 13 connected with the piston rod 12 and the ground contact is different, the friction force can be gradually enhanced, so that the deceleration process of the trailer is more stable, and when the braking device of the trailer is untimely, the damping air bag 6 can preliminarily contact with the tractor, the damping air bag 6 deforms to perform damping, and meanwhile, the damping air bag 6 can compress the buffer spring 8 through the bearing plate 7, the impact force is further buffered, so that the trailer and the tractor are not easy to collide, and the safety is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic brake device for trailer, includes trailer main part (1), its characterized in that: the bottom of trailer main part (1) is fixed with a plurality of mounting brackets (2), and is a plurality of the inside of mounting bracket (2) is connected with universal wheel (4) through pivot (3), and is a plurality of electric putter (15) are installed to the inside top of mounting bracket (2), the output of electric putter (15) is connected with braking vane (16), the inside both sides of trailer main part (1) all are connected with bearing plate (7) through buffer spring (8), one side that buffer spring (8) were kept away from in bearing plate (7) is fixed with shock attenuation gasbag (6) that run through to the trailer main part (1) outside, solid fixed ring (5) are all installed in the middle of the both sides of trailer main part (1), the inside of trailer main part (1) is provided with first cylinder (9), second cylinder (10) and third cylinder (11) respectively, first cylinder (9), The output end of the second cylinder (10) and the output end of the third cylinder (11) are both connected with a speed reducing plate (13) through a piston rod (12) penetrating to the bottom of the trailer main body (1), and an anti-abrasion pad (14) is fixed at the bottom of the speed reducing plate (13).

2. The automatic brake apparatus for a trailer according to claim 1, wherein: the brake plate (16) is arc-shaped, and the brake plate (16) is positioned above the universal wheel (4).

3. The automatic brake apparatus for a trailer according to claim 1, wherein: the damping air bag (6) is annular, and the damping air bag (6) is connected with the side wall of the trailer body (1) in a sliding mode.

4. The automatic brake apparatus for a trailer according to claim 1, wherein: the lengths of piston rods (12) connected with the output ends of the first air cylinder (9), the second air cylinder (10) and the third air cylinder (11) are gradually increased.

5. The automatic brake apparatus for a trailer according to claim 1, wherein: the bottom of the anti-abrasion pad (14) is rough, and the anti-abrasion pad (14) is made of rubber.