Large tonnage forklift pneumatic control system
A pneumatic control, large tonnage technology, applied in the direction of brakes, brake components, vehicle parts, etc., can solve the problems of high cost, reduce the controllability of the control system, and high pressure level of the hydraulic system, achieve convenient installation and maintenance, ensure safe operation, Low cost of use
Active Publication Date: 2015-12-09
HANGCHA GRP
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Problems solved by technology
However, the hydraulic system has high requirements for equipment, especially for large-tonnage forklifts with high pressure in the control pipeline, which requires high reliability of the system and the sealing effect of the seals. At the same time, the pressure level of the hydraulic system is high, and the working environment, such as temperature and other conditions Both have a great impact on the performance of the hydraulic oil, which will reduce the controllability of the entire control system. In addition, because the working medium used in the hydraulic system is hydraulic oil, the installation and maintenance of the system is relatively complicated and the cost is high.
Method used
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Embodiment Construction
[0027] Such as figure 1 As shown, this embodiment is a pneumatic control system for a large tonnage forklift, including an air compressor 1, an air dryer 3, an air storage tank 5 and a double-chamber brake chamber 12, wherein the air compressor 1 is connected to the air via an annular steel pipe 2 The dryer 3 and the air dryer 3 are connected to the air storage tank 5 and the small air storage tank 4, and the air storage tank 5 is connected to the double-chamber brake air chamber through the hand brake pipeline and the brake micro-motion pipeline respectively. The double-cavity brake chamber is divided into deflated brake chamber 12-1 and inflated brake chamber 12-2. The deflated brake chamber is connected with the hand brake pipeline for hand brake operation, and The dynamic air chamber is connected with the brake micro-motion pipeline for brake micro-motion operation.
[0028] In this embodiment, a manual control valve 9 and a quick release valve 10 are installed on the han...
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The invention relates to a pneumatic control system of a large-tonnage forklift. The pneumatic control system of the large-tonnage forklift is simple in structure, convenient to install and maintain, safe and reliable, and reduces use cost. According to the technical scheme, the pneumatic control system of the large-tonnage forklift is characterized by being provided with an air compressor. The air compressor is connected with a gas storage cylinder through an annular steel tube and an air drier sequentially. The gas storage cylinder is connected with a double-chamber brake chamber through a hand braking pipeline and a braking jogging pipeline respectively. The double-chamber brake chamber comprises an air release braking chamber and an air inflation braking chamber, wherein the air release braking chamber is connected with the hand braking pipeline, and the air inflation braking chamber is connected with the braking jogging pipeline. The pneumatic control system of the large-tonnage forklift is applicable to braking jogging control and hand braking control of the large-tonnage forklift in the engineering machinery industry.
Description
technical field [0001] The invention relates to a large-tonnage forklift pneumatic control system. It is suitable for brake inching and manual brake manipulation of large-tonnage forklifts in the construction machinery industry. Background technique [0002] As the most important control device of the forklift, the control system seriously affects the normal operation of the vehicle, especially the controllability and reliability of the hand brake and foot brake of the braking system, which is directly related to the safety of the driver and the personnel in the field. [0003] At present, pneumatic control is partially used in trucks, but hydraulic control systems are mostly used in the forklift industry to complete vehicle braking through oil pumps, accumulators, and brake valves. However, the hydraulic system has high requirements for equipment, especially for large-tonnage forklifts with high pressure in the control pipeline, which requires high reliability of the syste...
Claims
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IPC IPC(8): B60T11/10B60T11/28B60T15/04
Inventor 何立恒石彦军王建超李元松
Owner HANGCHA GRP