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Air-cut brake device for agricultural vehicle

A technology of air brakes and agricultural vehicles, which is applied in the direction of brake transmission, vehicle parts, transportation and packaging, etc., and can solve problems such as easily damaged gearboxes, easy wear of gears, and reduced service life of gears

Inactive Publication Date: 2014-05-28
GUANGXI HECHI DEJIAN AGRI EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the original braking method of the 91 chassis is the gear brake. The gear brake has a great disadvantage, that is, the gear is easy to wear, which greatly reduces the service life of the gear, and is easy to damage the gearbox. Moreover, the safety and stability of the gear brake is poor, especially in the In mountainous areas with complex road conditions and steep slopes, this braking method can no longer meet the actual needs

Method used

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  • Air-cut brake device for agricultural vehicle
  • Air-cut brake device for agricultural vehicle
  • Air-cut brake device for agricultural vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] When the agricultural vehicle is running, when the driver steps on the brake pedal 12, the brake push rod 11 pushes against the brake valve 6, and the compressed air in the air tank 5 is filled into the two air chambers through the foot-controlled quick-release valve 10. 8. Push the diaphragm of the air chamber 8 to push the air chamber push rod 15 forward to make the brake eccentric cam lever 16 rotate an angle. When the brake eccentric cam lever 16 rotates, the brake pad 14 is stretched apart. At this time, the brake pad 14 and the Brake drum 13 produces friction, and brake drum 13 is stopped to rotate. Because the brake drum 13 is fixedly mounted on the rear wheel 17 and rotates at the same speed as the rear wheel 17, when the brake drum 13 stops rotating due to friction, the rear wheel 17 also stops rotating simultaneously to achieve the effect of driving brake.

Embodiment 2

[0024] When the agricultural vehicle is stopped, the driver pulls the manual control valve 7. At this time, the compressed air of the air tank 5 is filled into the two air chambers 8 through the manual quick release valve 9, and the diaphragm of the air chamber 8 is pushed to push the air chamber push rod 15 forward. , the brake eccentric cam lever 16 is rotated at an angle, and the brake eccentric cam lever 16 is rotated and the brake pad 14 is stretched apart. At this moment, the brake pad 14 and the brake drum 13 produce friction, so that the brake drum 13 cannot rotate. Because the brake drum 13 is fixedly mounted on the rear wheel 17 and rotates at the same speed as the rear wheel 17, when the brake drum 13 cannot rotate due to friction, the rear wheel 17 cannot rotate simultaneously, thereby achieving the effect of parking brake.

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Abstract

The invention discloses an air-cut brake device for an agricultural vehicle. A diesel engine is connected with a belt pulley through a belt, the belt pulley is sequentially connected with an aerating pump, a pressure regulating valve and an air tank, the air tank is respectively connected with a brake valve and a hand operated valve, a brake pedal is connected with a brake valve through a brake push rod, the brake valve is respectively connected with two air chambers through a pedal-control quick releasing valve, the hand operated valve is respectively connected with the two air chambers through a hand operated quick releasing valve, and the air chambers are connected with brake drums mounted on rear wheels. Brake pads are fittingly mounted in the brake drums. The air chambers are fittingly connected with the brake pads through the push rods of the air chambers and brake eccentric cam rods. The air-cut brake device is specially modified and designed for original gear brakes of 91 chassis, can brake in an air-cut manner and is safe and reliable to brake and well applicable to rural areas with complicated road conditions.

Description

technical field [0001] The invention relates to a brake device, in particular to an air cut-off brake device for an agricultural vehicle. Background technique [0002] Agricultural vehicles play an important role in the daily life and production in rural areas of our country. They can be used for farmland operations during busy farming seasons and for short-distance transportation in normal times. They are one of the main means of transportation in rural areas. At present, the 91 chassis is commonly used on small agricultural vehicles in the market. After years of development and development, the technology of the 91 chassis is relatively mature, with strong stability and good operability. However, the original braking method of the 91 chassis is the gear brake. The gear brake has a great disadvantage, that is, the gear is easy to wear, which greatly reduces the service life of the gear, and is easy to damage the gearbox. Moreover, the safety and stability of the gear brake ...

Claims

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Application Information

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IPC IPC(8): B60T13/26
Inventor 覃朝锦陈古龙梁文和韦冯覃烈
Owner GUANGXI HECHI DEJIAN AGRI EQUIP MFG
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