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Three-level interlocking brake system of pneumatic tyre roller

A technology for tire rollers and braking systems, which is applied to hydraulic braking transmissions, motor vehicles, safety devices of power plant control mechanisms, etc. Fast and other problems, to achieve the effect of good operating comfort, protection from premature wear and reliable braking performance

Active Publication Date: 2014-03-26
柳工无锡路面机械有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The braking system of mechanically driven tire rollers still has the disadvantages of insufficient air pressure after continuous braking (such as continuous braking on slopes), the braking performance of the whole machine will decrease, the failure rate of braking components is high, and the brake pads on the wheel wear quickly. The high-speed tire roller has a great impact on the hydraulic system when braking at high speed. The braking condition caused by inertial force will cause the hydraulic system to back-drag the engine, causing the engine to overspeed and affecting the service life of the engine.

Method used

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  • Three-level interlocking brake system of pneumatic tyre roller
  • Three-level interlocking brake system of pneumatic tyre roller

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Embodiment Construction

[0033] see figure 1 with figure 2 , the present invention relates to a three-stage interlocking brake system of a tire roller, which are: the handle returns to the middle hydraulic neutral position self-locking brake (hand brake), rear wheel edge brake (pedal brake), rear axle Brakes (parking and emergency braking).

[0034] It includes travel pump 1, emergency brake solenoid valve 2, emergency brake pressure switch 3, drive axle brake 4, drive motor 5, first wheel brake 6, second wheel brake 7, foot brake pressure transmitter 8. Foot brake valve 9, drive motor speed sensor 10, controller 11 and handle 12.

[0035] Port A (first high-pressure oil outlet) and port B (second high-pressure oil outlet) of walking pump 1 are connected to the inlet and outlet of drive motor 5 to form a closed system. Port P of walking pump 1 (charge pump outlet) is connected with the P1 port (oil inlet port) of the emergency brake solenoid valve 2 and the P2 port (oil inlet port) of the foot bra...

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Abstract

The invention relates to a three-level interlocking brake system of a pneumatic tyre roller. The three-level interlocking brake system is characterized by including hydraulic center self-locking brake, wheel-side brake and rear axle brake and consisting of a travel pump (1), an emergency brake solenoid valve (2), a drive axle brake (4), a drive motor (5), a first wheel-side brake (6), a second wheel-side brake (7), a foot brake pressure transmitter (8), a foot brake valve (9), a drive motor revolution sensor (10), a controller (11) and a handle (12). As interlocking linkage protection and power cut-off protection to hand brake, foot brake and emergency brake are realized by means of the electronic control technology and the sensor technology, reliability, stability and operational comfort of the brake performance of the whole unit are improved, and road surface operation quality is improved.

Description

technical field [0001] The invention relates to a three-stage interlocking braking system for hydraulically driven tire rollers. Background technique [0002] At present, tire rollers generally have two main transmission modes: hydraulic drive and mechanical drive, and the corresponding braking systems are mainly as follows: The braking system of mechanically driven tire rollers uses the rear axle brake as the service brake, and the rear wheel wheel brake As a parking brake, an air cap oil system is generally used. [0003] The brake system of the hydraulically driven tire roller generally controls the hydraulic pump swash plate to return to the central closed system hydraulic self-locking for service braking, and the brake of the reducer or drive axle is used as the parking brake. [0004] These two mainstream braking systems are two-stage braking systems, that is, only two-stage braking systems for service braking and parking are used. In the existing two-stage braking s...

Claims

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Application Information

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IPC IPC(8): B60T7/04B60T11/10B60K28/00
Inventor 宋鹏飞程观润孙甜甜谢兴友卢洪
Owner 柳工无锡路面机械有限公司
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