CN217917906U

CN217917906U - Air-break brake system for tractor

Info

Publication number: CN217917906U
Application number: CN202222842892.2U
Authority: CN
Inventors: 杜世超
Original assignee: Shandong Novotech Heavy Industry Co ltd
Current assignee: Shandong Novotech Heavy Industry Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2022-11-29
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a braking system that ends gas for tractor, including engine air pump, engine air pump gas outlet is connected with the gas receiver, the gas receiver top is connected with the foot brake valve, gas receiver one side is connected with the trailer valve, be connected with the air brake pipeline between gas receiver and the trailer valve, air brake pipeline middle part is connected with three way connection, one side that the gas receiver was kept away from to the trailer valve is connected with the air brake quick change coupler. The utility model discloses a through being provided with brake mechanism, can reach and utilize reset spring and brake spring to act on brake pedal and brake pull rod respectively, strengthen the flexibility ratio that brake mechanism resets, can effectively avoid brake mechanism card pause to cause the condition that the vehicle lasts the braking; through setting up the gas leakage detection pipe, can reach and realize trachea gas leakage monitoring function, can effectively avoid the condition of proruption braking to appear among the driving process.

Description

Air-break brake system for tractor

Technical Field

The utility model relates to a tractor brake technical field specifically is a brake system that cuts off gas for tractor.

Background

The air-break brake is characterized in that compressed air is driven by an engine air pump to push a piston, the piston acts on a strong spring to enable the strong spring to generate or release braking force, the compressed air extrudes the strong spring to shrink in the normal running process of the tractor, the air pressure in an air storage cylinder is reduced when the tractor brakes, the air pressure cannot extrude the strong spring to compress, the strong spring pops out to achieve the braking effect, the safety performance of the tractor in running can be greatly enhanced by using the air-break brake, the main acting mechanism of the brake is a brake pedal, and a foot brake valve is triggered by treading the brake pedal through a brake mechanism.

When the air pressure in the air storage cylinder is insufficient, the traditional air-break braking system cannot extrude the powerful spring to compress, and the powerful spring is ejected out to achieve the braking effect, but in the condition, a driver cannot visually judge whether the air pressure is insufficient or the vehicle parts are damaged, and cannot directly provide data for the driver; and the traditional brake mechanism that brake pedal connects only relies on the reset spring drive on the brake pedal to reset, but reset spring only acts on the brake pedal, in case brake mechanism card is pause, can directly cause the condition that the degree of resilience of brake pedal is little or even not kick-backs for the vehicle lasts the braking, causes the inconvenience for the user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas break braking system for tractor 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 brake system breaks gas for tractor, includes engine air pump, engine air pump gas outlet is connected with the gas receiver, the gas receiver top is connected with the service brake valve, gas receiver one side is connected with the trailer valve, be connected with the air brake pipeline between gas receiver and the trailer valve, air brake pipeline middle part is connected with three way connection, one side that the gas receiver was kept away from to the trailer valve is connected with the air brake quick change coupler, a pressure sensor is installed at the gas receiver top, the gas receiver top is connected with the trachea through a pressure sensor, install the gas leakage detection pipe on the trachea, the service brake valve is connected with brake pedal, be connected with arrestment mechanism between service brake valve and the brake pedal.

Preferably, the first pressure sensor is connected with an instrument assembly through a circuit, and the detection end of the first pressure sensor is communicated with the inner cavity of the air storage cylinder.

Preferably, one end of the air pipe, which is far away from the air storage cylinder, is connected with a four-wheel drive hitching valve, the middle of the air pipe is connected with a four-wheel drive oil-water separator, the surface of the air pipe on one side of the four-wheel drive oil-water separator is connected with a four-wheel drive controller, one side of the four-wheel drive hitching valve, which is far away from the air pipe, is connected with a four-wheel drive transfer case, the air pipe is hollow, and the air pipe is communicated with the inner cavity of the air storage cylinder.

Preferably, one side of the air leakage detection pipe close to the air storage cylinder is connected with a high-pressure valve, and the top of the air leakage detection pipe is connected with a second pressure sensor.

Preferably, the top of the brake pedal is connected with a lantern ring, the top of the lantern ring is connected with a return spring, the middle of the lantern ring is connected with a connecting plate, and the lantern ring is hinged to the vehicle body.

Preferably, the brake mechanism includes a brake connecting rod, the bottom end of the brake connecting rod is connected with a rotating arm, one side of the rotating arm is connected with a brake pull rod, one end of the brake pull rod, which is far away from the rotating arm, is connected with a brake spring, one end of the brake spring, which is far away from the brake pull rod, is connected with a brake hanging plate, hinged seats are welded at both ends of the brake connecting rod and the brake pull rod, the rotating arm is cylindrical and hollow inside, and a pin shaft penetrates through the middle part of the rotating arm to be connected with the vehicle body in a rotating manner.

Preferably, the top end of the brake connecting rod is hinged to the connecting plate through a hinge seat, and the bottom end of the brake connecting rod is hinged to the rotating arm through a hinge seat.

Preferably, one end of the brake pull rod is hinged with the rotating arm through a hinge seat, the other end of the brake pull rod is connected with a brake spring through the hinge seat, the brake spring is fixedly connected with a brake hanging plate, and the brake hanging plate is connected with a switch of the foot brake valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this a brake system cuts off gas for tractor, through setting up the gas leakage detection pipe, the high pressure valve is closed to priority when detecting the trachea airtight, pause air cylinder and the interior air current of trachea open, utilize first pressure sensor to detect air cylinder internal gas pressure, second pressure sensor detects the interior air pressure of trachea, and will detect numerical value transmission to tractor main control center, when second pressure sensor detects numerical value and is less than first pressure sensor and detects numerical value, can know the trachea and appear gas leakage phenomenon, instrument assembly reports to the police and in time reminds the driver this moment, realize trachea gas leakage monitoring function, can effectively avoid the condition of the proruption braking of the in-process of traveling appearance.

2. This a brake system that breaks gas for tractor, through setting up arrestment mechanism, trample the in-process of brake pedal, the connecting plate pulling braking connecting rod rises, and the rocking arm rotation is pulled to the braking connecting rod, and the rocking arm pulls the braking pull rod pulling braking link plate, and reset spring and brake spring all are in tensile state this moment, utilize reset spring pulling brake pedal to reset, and brake spring pulling braking pull rod resets simultaneously, strengthens the flexibility that arrestment mechanism reset, can effectively avoid arrestment mechanism card to pause the condition that causes the vehicle to last the braking.

3. This a brake system breaks gas for tractor through setting up first pressure sensor, utilizes first pressure sensor to detect the air receiver internal gas pressure intensity, and when air receiver internal gas pressure reduced, first pressure sensor will detect data through circuit transmission to instrument assembly, and the driver can be through the audio-visual observation atmospheric pressure data of instrument assembly, and the driver of being convenient for in time knows the air receiver atmospheric pressure and reduces, carries out the braking of breaking gas.

Drawings

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

FIG. 2 is a schematic structural view of the braking mechanism of the present invention;

fig. 3 is an explosion structure diagram of the braking mechanism of the present invention;

fig. 4 is a schematic view of the structure of the gas leakage detecting tube of the present invention.

In the figure: 1. an engine air pump; 2. an air cylinder; 3. a foot brake valve; 4. an air brake line; 5. a trailer valve; 6. a three-way joint; 7. a pneumatic brake quick-change connector; 8. a first pressure sensor; 9. an instrument assembly; 10. an air tube; 11. a four-wheel drive hitch valve; 12. a four-drive oil-water separator; 13. a four-drive controller; 14. a four-wheel drive transfer case; 15. a brake pedal; 151. a collar; 152. a return spring; 153. a connecting plate; 16. a brake mechanism; 161. a brake link; 162. a rotating arm; 163. a brake pull rod; 164. a brake spring; 165. braking the hanging plate; 166. a hinged seat; 17. a gas leakage detection tube; 18. a high pressure valve; 19. a second pressure sensor.

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 efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be 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 meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 4, the air-break braking system for a tractor according to the present embodiment comprises an engine air pump 1, an air reservoir 2 is connected to an air outlet of the engine air pump 1, air is discharged through the air reservoir 2, air pressure provided by the air reservoir 2 acts on a strong spring parking brake in a vehicle body, so that air pressure extrudes the strong spring to compress, brake release is completed, a foot brake valve 3 is connected to the upper portion of the air reservoir 2, a trailer valve 5 is connected to one side of the air reservoir 2, an air brake pipeline 4 is connected between the air reservoir 2 and the trailer valve 5, a three-way joint 6 is connected to the middle portion of the air brake pipeline 4, the three-way joint 6 is connected to the trailer valve 5 through the air brake pipeline 4 to distribute air pressure output by the air reservoir 2, an air brake quick-change joint 7 is connected to one side of the trailer valve 5 through the air brake pipeline 7, synchronous brake of the trailer connected to the trailer valve 5 through the air brake is realized, a first pressure sensor 8 is installed on the top of the trailer connected to the trailer 2, the first pressure sensor 8 is connected to the first pressure sensor 8 through a circuit, the first pressure sensor 8 is connected to an instrument assembly 9 through a circuit, a second pressure sensor 17 is connected to the inner cavity of the air reservoir 2 through a pressure sensor 17, a second pressure sensor 17 is installed on the upper portion of the air reservoir 2, a second pressure sensor 17 for visually observing instrument 17, a high pressure sensor 17 for observing instrument for observing the air leakage data of the air leakage detecting instrument 17, the air pressure data in the air pipe 10 is compared with the air pressure data in the air storage cylinder 2 acquired by the first pressure sensor 8, whether the air pipe 10 leaks air or not can be known, the air leakage detection pipe 17 can be installed at any position on the air pipe 10, the air leakage monitoring function of the air pipe 10 is realized, and the sudden braking condition in the driving process can be effectively avoided; the foot brake valve 3 and the brake pedal 15 are connected by the brake mechanism 16, the brake link 161 and the brake pull rod 163 are connected by the rotating arm 162, the brake link 161 is perpendicular to the brake pull rod 163, the rotating arm 162 is pulled to rotate by the brake link 161, and the brake pull rod 163 is pulled to move by the rotating arm 162.

Specifically, one end of the air pipe 10, which is far away from the air storage cylinder 2, is connected with a four-drive hanging valve 11, the middle part of the air pipe 10 is connected with a four-drive oil-water separator 12, the surface of the air pipe 10 at one side of the four-drive oil-water separator 12 is connected with a four-drive controller 13, one side of the four-drive hanging valve 11, which is far away from the air pipe 10, is connected with a four-drive transfer case 14, the air pipe 10 is hollow, and the air pipe 10 is communicated with the inner cavity of the air storage cylinder 2; when a user steps on the brake pedal 15 in the process of driving the tractor, the four-wheel drive controller 13 is triggered, air pressure in the air storage cylinder 2 reaches the four-wheel drive hanging valve 11 from the four-wheel drive oil-water separator 12 through the air pipe 10, the four-wheel drive hanging valve 11 is driven to work and hang the four-wheel drive transfer case 14, and four-wheel brake of the tractor is achieved.

Further, the top of the brake pedal 15 is connected with a lantern ring 151, the top of the lantern ring 151 is connected with a return spring 152, the middle of the lantern ring 151 is connected with a connecting plate 153, and the lantern ring 151 is hinged to the vehicle body; the top end of the brake link 161 is connected by the connecting plate 153, so that when the brake pedal 15 moves downwards, the collar 151 is driven to rotate, the collar 151 pulls the brake link 161 to ascend through the connecting plate 153, and the return spring 152 is used for pulling the brake pedal 15 to return.

Further, the top end of the brake link 161 is hinged to the connecting plate 153 through a hinge seat 166, and the bottom end of the brake link 161 is hinged to the rotating arm 162 through a hinge seat 166; the connecting plate 153 and the rotating arm 162 are connected by the brake link 161, so that the movement of the connecting plate 153 is transmitted to the rotating arm 162, and the two ends of the brake link 161 are hinged by the hinge seat 166, thereby avoiding the occurrence of movement obstruction.

Furthermore, one end of the brake pull rod 163 is hinged with the rotating arm 162 through a hinge seat 166, the other end of the brake pull rod 163 is connected with a brake spring 164 through the hinge seat 166, the brake spring 164 is fixedly connected with a brake hanging plate 165, and the brake hanging plate 165 is connected with a switch of the foot brake valve 3; the two ends of the brake spring 164 are connected with the brake pull rod 163 and the brake hanging plate 165, the brake pull rod 163 moves to stretch the brake spring 164 when the vehicle brakes, and the return spring 152 and the brake spring 164 act on the lantern ring 151 and the brake pull rod 163 respectively, so that the brake pedal 15 and the brake mechanism 16 are quickly returned, and the situation that the vehicle brakes continuously due to the fact that the brake mechanism 16 is blocked is avoided.

The application method of the embodiment comprises the following steps: when a user drives a tractor, before the air tightness of the air pipe 10 is detected, the high-pressure valve 18 is closed preferentially, the air circulation between the air cylinder 2 and the air pipe 10 is stopped, the first pressure sensor 8 detects the air pressure in the air cylinder 2, the second pressure sensor 19 detects the air pressure in the air pipe 10, the first pressure sensor 8 and the second pressure sensor 19 transmit the detected values to a main control center of the tractor for comparison, when the detected value of the second pressure sensor 19 is smaller than the detected value of the first pressure sensor 8, the air leakage phenomenon of the air pipe 10 is proved, at the moment, the instrument assembly 9 gives an alarm to remind a driver in time, the brake pedal 15 is trampled, the brake pedal 15 moves downwards to drive the lantern ring 151 and the connecting plate 153 to rotate relative to the tractor body, the connecting plate 153 pulls the brake connecting rod 161 and pulls the brake connecting rod 161 to ascend, the brake connecting rod 161 pulls the rotating arm 162 to rotate, the rotating arm 162 pulls the brake pull rod 163 to move, so that the brake pull rod 163 pulls the brake hanging plate 165 to move, and further triggers the foot brake valve 3, and further the air pressure in the air storage cylinder 2 is distributed through the trailer valve 5, one air pipe 10 is inflated, one air pipe 10 is deflated, so that the trailer connected through the air brake quick-change connector 7 realizes braking, and when the brake pedal 15 is stepped on, the four-drive controller 13 is triggered, the air pressure in the air storage cylinder 2 reaches the four-drive hitching valve 11 through the four-drive oil-water separator 12, so that the four-drive hitching valve 11 is driven to work and hitch the four-drive transfer case 14, and four-wheel braking of the tractor is realized, after the driver loosens the brake pedal 15, the return spring 152 and the brake spring 164 respectively act on the lantern ring 151 and the brake pull rod 163, so that the brake pedal 15 and the brake mechanism 16 are quickly reset, when the air pressure in the air storage cylinder 2 is reduced, the first pressure sensor 8 transmits the detection data to the instrument assembly 9 through a circuit, the driver can visually observe the air pressure data through the meter assembly 9.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a braking system that cuts off gas supply for tractor, includes engine air pump (1), its characterized in that: the air brake device is characterized in that an air outlet of the engine air pump (1) is connected with an air storage cylinder (2), a foot brake valve (3) is connected to the upper portion of the air storage cylinder (2), a trailer valve (5) is connected to one side of the air storage cylinder (2), an air brake pipeline (4) is connected between the air storage cylinder (2) and the trailer valve (5), a three-way connector (6) is connected to the middle of the air brake pipeline (4), one side, away from the air storage cylinder (2), of the trailer valve (5) is connected with an air brake quick-change connector (7), a first pressure sensor (8) is installed at the top of the air storage cylinder (2), an air pipe (10) is connected to the top of the air storage cylinder (2) through the first pressure sensor (8), an air leakage detection pipe (17) is installed on the air pipe (10), the foot brake valve (3) is connected with a brake pedal (15), and a brake mechanism (16) is connected between the foot brake valve (3) and the brake pedal (15).

2. The air break brake system for a tractor according to claim 1, characterized in that: the first pressure sensor (8) is connected with an instrument assembly (9) through a circuit, and the detection end of the first pressure sensor (8) is communicated with the inner cavity of the air cylinder (2).

3. The air break brake system for a tractor according to claim 1, characterized in that: the air pipe is characterized in that one end, far away from the air storage cylinder (2), of the air pipe (10) is connected with a four-wheel drive hanging valve (11), the middle of the air pipe (10) is connected with a four-wheel drive oil-water separator (12), the surface of the air pipe (10) on one side of the four-wheel drive oil-water separator (12) is connected with a four-wheel drive controller (13), one side, far away from the air pipe (10), of the four-wheel drive hanging valve (11) is connected with a four-wheel drive transfer case (14), the air pipe (10) is hollow inside, and the air pipe (10) is communicated with an inner cavity of the air storage cylinder (2).

4. The air break brake system for a tractor according to claim 1, characterized in that: one side of the air leakage detection pipe (17) close to the air storage cylinder (2) is connected with a high-pressure valve (18), and the top of the air leakage detection pipe (17) is connected with a second pressure sensor (19).

5. The air break brake system for a tractor according to claim 1, wherein: the brake pedal (15) top is connected with lantern ring (151), lantern ring (151) top is connected with reset spring (152), lantern ring (151) middle part is connected with connecting plate (153), lantern ring (151) is articulated to be installed on the automobile body.

6. The air break brake system for a tractor according to claim 5, wherein: brake mechanism (16) are including braking connecting rod (161), braking connecting rod (161) bottom is connected with rocking arm (162), rocking arm (162) one side is connected with braking pull rod (163), the one end that rocking arm (162) were kept away from in braking pull rod (163) is connected with brake spring (164), the one end that brake pull rod (163) were kept away from in brake spring (164) is connected with braking link plate (165), brake connecting rod (161) and braking pull rod (163) both ends all weld articulated seat (166), rocking arm (162) are inside hollow cylindric, rocking arm (162) middle part is run through the round pin axle and is connected with the automobile body rotation.

7. The air break brake system for a tractor according to claim 6, wherein: the top end of the brake connecting rod (161) is hinged to the connecting plate (153) through a hinge seat (166), and the bottom end of the brake connecting rod (161) is hinged to the rotating arm (162) through the hinge seat (166).

8. The air break brake system for a tractor according to claim 6, wherein: brake pull rod (163) one end is articulated through articulated seat (166) and rocking arm (162), brake pull rod (163) other end is connected brake spring (164) through articulated seat (166), brake spring (164) are connected fixedly with brake link plate (165), the switch of foot brake valve (3) is connected in brake link plate (165).