Brake system of agricultural tricycle

Abstract

The utility model relates to the technical field of brake equipment, in particular to an agricultural tricycle brake system which comprises an air pressure mechanism and a brake mechanism, the air pressure mechanism is arranged on a tricycle rack, and the air pressure mechanism and the brake mechanism are connected to form the brake system. The air pressure mechanism comprises a first fixing support, an air pressure pump, an air storage tank and a numerical control valve, the air pressure pump is arranged on the tricycle rack through the first fixing support, the air pressure pump is connected with the air storage tank through a first air guide pipeline, and a discharge port of the air storage tank is connected with the brake mechanism through a second air guide pipeline; the brake mechanism comprises a connecting set, a left brake set, a right brake set, a brake pad and a connecting block, the brake pad is connected with the rotating shaft through the connecting block, the left brake set and the right brake set are arranged on the left side and the right side of the brake pad and connected with the connecting set, and the connecting set is connected with the tricycle rack. A pneumatic braking mode is adopted, the braking effect is better, and the braking performance is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of brake equipment, in particular to a brake system for an agricultural tricycle. Background Art

[0002] With the development of agricultural modernization, agricultural tricycles play an important role in agricultural production and rural transportation. However, the brake system of traditional agricultural tricycles has some aspects that need to be improved and optimized in actual use.

[0003] At present, the braking systems of many agricultural tricycles generally adopt mechanical braking methods, which achieve physical deceleration by stretching the brake plate on the brake disc through a steel wire rope and rubbing the brake plate against the brake disc on the axle. However, when agricultural tricycles are pulling heavy crops, due to uneven roads, they vibrate greatly when driven. At this time, the mechanical braking method is not efficient, and the braking effect may be greatly reduced, affecting the driving safety of the vehicle. In order to solve the above problems, the agricultural tricycle braking system involved in this technical solution aims to provide a braking device with more stable braking performance, higher durability, and better operation convenience. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the utility model provides a brake system for an agricultural tricycle, which adopts a pneumatic brake method, has a better braking effect and a more stable braking performance.

[0005] The technical implementation scheme of the utility model is:

[0006] A brake system for an agricultural tricycle comprises a pneumatic mechanism and a brake mechanism, wherein the pneumatic mechanism is arranged on a tricycle frame, and the pneumatic mechanism and the brake mechanism are connected to form a brake system; the pneumatic mechanism comprises a first fixed bracket, a pneumatic pump, an air storage tank and a numerical control valve, the pneumatic pump is arranged on the tricycle frame through the first fixed bracket, and the pneumatic pump is connected to the air storage tank through a first air guide pipe, and a discharge port of the air storage tank is connected to the brake mechanism through a second air guide pipe; the brake mechanism comprises a connecting group, a left brake group, a right brake group, a brake pad and a connecting block, the brake pad is connected to a rotating shaft through the connecting block, a left brake group and a right brake group are arranged on the left and right sides of the brake pad, the left brake group and the right brake group are connected to the connecting group, and the connecting group is connected to the tricycle frame through a connecting piece.

[0007] Optionally, the left brake group includes a second fixed bracket, a pneumatic cylinder, a connecting bracket and a brake disc. The connecting bracket is movably connected to the first rotating shaft on the second fixed bracket through a connecting through hole. A brake disc is provided at one end of the connecting bracket, and the other end of the connecting bracket is movably connected to the driving rod on the pneumatic cylinder.

[0008] Optionally, a fixing ear is provided at one end of the connecting bracket, a connecting shaft is provided in the middle of the two fixing ears, and the connecting shaft is movably connected to the connector on the driving rod; a second brake pad is provided on one side of the brake disc, and the second brake pad is arranged close to the brake pad.

[0009] Optionally, a connection group is provided at one end of the brake pad, and the connection group includes a third fixed bracket, a first connecting plate, a second connecting plate and a bearing. The third fixed bracket is connected to the connecting arm on the second fixed bracket. A first connecting plate is provided on the upper part of the third fixed bracket. The first connecting plate is connected to the second connecting plate through a connecting rod, and the second connecting plate is connected to the rotating shaft through a bearing.

[0010] Optionally, a filter group is also included, which is arranged on the feed pipe of the air pressure pump. The filter group includes a connecting groove, a first filter screen and a second filter screen. The first filter screen is arranged inside the connecting groove, and the second filter screen is arranged on the first filter screen.

[0011] Optionally, both the first filter screen and the second filter screen are provided with sieve holes, and the sieve holes on the first filter screen are smaller than the sieve holes on the second filter screen.

[0012] Optionally, a numerically controlled valve is provided on the upper portion of the second air guide duct.

[0013] Optionally, a control console is provided on the first fixed bracket, and the control console is located on the upper part of the air pressure pump.

[0014] The utility model has the following advantages:

[0015] 1. The brake system of the utility model is composed of a pneumatic mechanism and a brake mechanism, both of which are arranged on the frame of the agricultural tricycle. The pneumatic mechanism provides compressed air to the brake mechanism to drive the brake mechanism to brake the brake disc, thereby realizing pneumatic braking processing and improving stable braking performance.

[0016] 2. In the utility model, the pneumatic mechanism is composed of an air pressure pump, an air tank and a CNC valve, all of which are arranged on a first fixed bracket, wherein the air pressure pump can absorb air and fill it into the air tank for use in the brake mechanism, and when the amount of compressed air inside the air tank decreases, the air tank can automatically start to fill the air tank with compressed air.

[0017] 3. In the utility model, the entire brake mechanism includes a left brake group and a right brake group, which are driven by an internal pneumatic cylinder to rotate the connecting brackets at both ends. In this process, the brake disc at one end of the connecting bracket is brought close to the brake disc to achieve braking. For efficient braking, our left brake group and right brake group are both arranged on both sides of the brake pad, and braking can be performed at the same time, thereby improving the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the pneumatic mechanism of the utility model.

[0019] Figure 2 It is the front view of the pneumatic mechanism of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the filter group of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the brake mechanism of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the connection group of the utility model.

[0023] Figure 6 It is a structural schematic diagram of the connection of the left brake assembly of the utility model.

[0024] Figure 7 It is a structural schematic diagram of the left brake assembly of the utility model.

[0025] Figure 8 It is a structural schematic diagram of the connecting bracket of the utility model.

[0026] The meanings of the reference numerals in the figure are: 1-pneumatic mechanism, 3-filter group, 301-connecting groove, 302-first filter screen, 303-second filter screen, 4-connecting group, 401-third fixed bracket, 402-first connecting plate, 403-second connecting plate, 404-bearing, 5-left brake group, 501-second fixed bracket, 502-connecting arm, 503-pneumatic cylinder, 504-driving rod, 505-connecting bracket, 506-fixed ear, 507-connecting shaft, 508-first rotating shaft, 510-brake disc, 511-second brake pad, 512-connector, 6-right brake group, 7-brake pad, 8-connecting block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0028] like Figure 1-Figure 5As shown, a brake system for an agricultural tricycle includes a pneumatic mechanism 1 and a brake mechanism 2, the pneumatic mechanism 1 is arranged on a tricycle frame, and the pneumatic mechanism 1 is connected to the brake mechanism 2 to form a brake system; the pneumatic mechanism 1 includes a first fixed bracket 101, an air pressure pump 102, an air tank 105 and a numerical control valve 109, the pneumatic pump 102 is arranged on the tricycle frame through the first fixed bracket 101, and the pneumatic pump 102 is connected to the air tank 105 through a first air guide pipe 110, and the discharge port of the air tank 105 is connected to the brake mechanism 2 through a second air guide pipe 106; the brake mechanism 2 includes a connecting group 4, a left brake group 5, a right brake group 6, a brake pad 7 and a connecting block 8, the brake pad 7 is connected to the rotating shaft through the connecting block 8, the left brake group 5 and the right brake group 6 are arranged on the left and right sides of the brake pad 7, the left brake group 5 and the right brake group 6 are connected to the connecting group 4, and the connecting group 4 is connected to the tricycle frame through a connecting piece.

[0029] It should be noted that agricultural tricycles are an important tool for transportation in towns and villages and are used to transport crops. During the transportation process, the existing agricultural tricycles often need to brake due to their heavy load and uneven road surface. The existing tricycles use a mechanical braking system, and the braking process depends entirely on human pressure. Due to the influence of gravity, the brakes may fail from time to time. Therefore, we have designed a pneumatic brake mechanism, in which we have designed an air pressure mechanism 1 and a brake mechanism, and the brake mechanism is driven by the air pressure mechanism 1 to achieve braking.

[0030] It needs to be further explained that during pneumatic braking, we need compressed air as the power to drive. In this process, we set up an air pressure pump 102 and an air tank 105 on the first fixed bracket 101. The air pressure pump 102 is used to inflate the air tank 105, and the air tank 105 is connected to the brake mechanism 2 through the second air duct 106, thereby being air-driven.

[0031] It should be further explained that, in order to improve the braking effect, our brake mechanism includes a left brake group 5 and a right brake group 6, which can brake the brake pads 7 at the same time to improve the braking effect.

[0032] like Figure 5-Figure 8As shown, the left brake group 5 includes a second fixed bracket 501, a pneumatic cylinder 503, a connecting bracket 505 and a brake disc 510. The connecting bracket 505 is movably connected to the first rotating shaft 508 on the second fixed bracket 501 through a connecting through hole. A brake disc 510 is arranged at one end of the connecting bracket 505, and the other end of the connecting bracket 505 is movably connected to the driving rod 504 on the pneumatic cylinder 503; a fixing ear 506 is arranged at one end of the connecting bracket 505, a connecting shaft 507 is arranged in the middle of the two fixing ears 506, and the connecting shaft 507 is movably connected to the connector 512 on the driving rod 504; a second brake pad 511 is arranged on one side of the brake disc 510, and the second brake pad 511 is arranged close to the brake pad 7.

[0033] It should be noted that in order to improve the braking effect, a connecting bracket 505 is arranged on the upper part of the second fixed bracket 501, and the connecting bracket 505 is movably connected to the second fixed bracket 501 through the first rotating shaft 508. A brake disc 510 is arranged at one end of the connecting bracket 505, and the other end of the connecting bracket 505 is movably connected to the driving rod 504 of the pneumatic cylinder 503. The connecting bracket 505 is driven to rotate by the pneumatic cylinder 503, and then the brake disc 510 is brought into contact with the brake pad 7, thereby realizing braking.

[0034] It should be further explained that our connecting bracket 505 is symmetrically arranged on the second fixed bracket 501 and is connected to the pneumatic cylinder 503 and can be driven simultaneously to achieve braking of the brake pad 7.

[0035] like Figure 4-Figure 8 As shown, a connection group 4 is provided at one end of the brake pad 7, and the connection group 4 includes a third fixed bracket 401, a first connecting plate 402, a second connecting plate 403 and a bearing 404. The third fixed bracket 401 is connected to the connecting arm 502 on the second fixed bracket 501. The first connecting plate 402 is provided on the upper part of the third fixed bracket 401. The first connecting plate 402 is connected to the second connecting plate 403 through a connecting rod, and the second connecting plate 403 is connected to the rotating shaft through a bearing 404.

[0036] It should be noted that in order to connect the entire brake mechanism with the tricycle frame for the placement and driving of the brake mechanism, we designed a connection group 4, in which the first connecting plate 402 is connected to the third fixed bracket 401, and the first connecting plate 402 is connected to the second connecting plate 403 through a connecting rod, and is connected to the rotating shaft on the tricycle frame through the bearing 404 on the second connecting plate 403, which is used to connect and fix the entire brake mechanism.

[0037] like Figure 3As shown, the filter group 3 is arranged on the feed pipe 103 of the air pressure pump 102, and the filter group 3 includes a connecting groove 301, a first filter screen 302 and a second filter screen 303. The first filter screen 302 is arranged inside the connecting groove 301, and the second filter screen 303 is arranged on the first filter screen 302; the first filter screen 302 and the second filter screen 303 are both provided with sieve holes, and the sieve holes on the first filter screen 302 are smaller than the sieve holes of the second filter screen 303.

[0038] It should be noted that the function of the air pressure pump 102 is to suck in air, compress it and introduce it into the air storage tank 105 to achieve air conduction. Since a large amount of dust will be generated in the wheel area of ​​the agricultural tricycle during use, which will affect the air suction of the air pressure pump 102, we have designed a filter group 3 to filter the dust in the air through the first filter net 302 and the second filter net 303.

[0039] It should be further explained that both the first filter screen 302 and the second filter screen 303 are provided with filter cotton cores for filtering smaller dust.

[0040] like Figure 1-Figure 3 As shown, a numerical control valve 109 is disposed on the upper portion of the second air guide pipe 106 ; a control console 104 is disposed on the first fixed bracket 101 , and the control console 104 is located on the upper portion of the air pressure pump 102 .

[0041] It should be noted that the setting of the numerical control valve 109 can be used in conjunction with the gas tank 105. A pressure sensor is designed on the gas tank 105. When the pressure in the gas tank 105 is insufficient, the numerical control valve 109 can be automatically opened for inflation.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A brake system for an agricultural tricycle, comprising an air pressure mechanism (1) and a brake mechanism, characterized in that: The pneumatic mechanism (1) is arranged on the tricycle frame, and the pneumatic mechanism (1) is connected with the brake mechanism to form a brake system; The pneumatic mechanism (1) comprises a first fixed support (101), an air pressure pump (102), an air storage tank (105) and a numerical control valve (109); the air pressure pump (102) is arranged on the tricycle frame through the first fixed support (101), and the air pressure pump (102) is connected to the air storage tank (105) through a first air guide pipe (110); and the discharge port of the air storage tank (105) is connected to the brake mechanism through a second air guide pipe (106); The brake mechanism comprises a connection group (4), a left brake group (5), a right brake group (6), a brake pad (7) and a connection block (8); the brake pad (7) is connected to the rotating shaft through the connection block (8); the left brake group (5) and the right brake group (6) are arranged on the left and right sides of the brake pad (7); the left brake group (5) and the right brake group (6) are connected to the connection group (4); and the connection group (4) is connected to the tricycle frame through a connecting piece.

2. A brake system for an agricultural tricycle according to claim 1, characterized in that: The left brake assembly (5) comprises a second fixed bracket (501), a pneumatic cylinder (503), a connecting bracket (505) and a brake disc (510); the connecting bracket (505) is movably connected to a first rotating shaft (508) on the second fixed bracket (501) via a connecting through hole; a brake disc (510) is provided at one end of the connecting bracket (505); and the other end of the connecting bracket (505) is movably connected to a driving rod (504) on the pneumatic cylinder (503).

3. A brake system for an agricultural tricycle according to claim 2, characterized in that: A fixing ear (506) is disposed at one end of the connecting bracket (505), a connecting shaft (507) is disposed in the middle of the two fixing ears (506), and the connecting shaft (507) is movably connected to a connector (512) on the driving rod (504); A second brake pad (511) is arranged on one side of the brake disc (510), and the second brake pad (511) is arranged close to the brake pad (7).

4. A brake system for an agricultural tricycle according to claim 3, characterized in that: A connection group (4) is provided at one end of the brake pad (7), and the connection group (4) includes a third fixed bracket (401), a first connection plate (402), a second connection plate (403) and a bearing (404). The third fixed bracket (401) is connected to a connection arm (502) on the second fixed bracket (501). The first connection plate (402) is provided on the upper part of the third fixed bracket (401). The first connection plate (402) is connected to the second connection plate (403) through a connecting rod, and the second connection plate (403) is connected to the rotating shaft through the bearing (404).

5. A brake system for an agricultural tricycle according to claim 4, characterized in that: The invention also comprises a filter group (3), the filter group (3) being arranged on the feed pipe (103) of the air pressure pump (102), the filter group (3) comprising a connecting groove (301), a first filter screen (302) and a second filter screen (303), the first filter screen (302) being arranged inside the connecting groove (301), and the second filter screen (303) being arranged on the first filter screen (302).

6. A brake system for an agricultural tricycle according to claim 5, characterized in that: Both the first filter screen (302) and the second filter screen (303) are provided with sieve holes, and the sieve holes on the first filter screen (302) are smaller than the sieve holes on the second filter screen (303).

7. The brake system for an agricultural tricycle according to claim 1, characterized in that: A numerical control valve (109) is provided at the upper portion of the second air guide pipe (106).

8. The brake system for an agricultural tricycle according to claim 1, characterized in that: A control console (104) is provided on the first fixed support (101), and the control console (104) is located on the upper part of the air pressure pump (102).

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