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Continuous material feeding system and control method and elevating platform fire truck thereof

A technology of feeding system and control method, applied in servo motors, servo motor components, liquid variable capacity machines, etc., can solve problems such as flow fluctuations, and achieve the effects of solving flow fluctuations, continuous and stable feeding, and simple control

Active Publication Date: 2013-02-20
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, one of the purposes of the present invention is to propose a control method for a continuous feeding system to effectively solve the problem of flow fluctuations in the prior art during pumping

Method used

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  • Continuous material feeding system and control method and elevating platform fire truck thereof
  • Continuous material feeding system and control method and elevating platform fire truck thereof
  • Continuous material feeding system and control method and elevating platform fire truck thereof

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specific Embodiment approach

[0030] As a specific implementation, the reversing valve group includes a directional control valve 5, a first cartridge valve e1, a second cartridge valve e2, a third cartridge valve e3 and a fourth cartridge valve e4, wherein: combined figure 2 As shown, the first oil ports A of the first cartridge valve e1 and the fourth cartridge valve e4 communicate with the rodless chambers of the first oil cylinder C1 and the second oil cylinder C2 respectively, and the first cartridge valve e1 and the fourth cartridge valve The second oil port B of the valve e4 leads to the oil return circuit 02; the first oil port A of the third cartridge valve e3 and the second cartridge valve e2 are respectively connected to the rodless chamber of the first oil cylinder C1 and the second oil cylinder C2 In communication, the second oil port B of the third cartridge valve e3 and the second cartridge valve e2 is connected with the oil inlet oil circuit 02; the first cartridge valve e1, the second cart...

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Abstract

The invention discloses a continuous material feeding system and a control method and an elevating platform fire truck thereof. The control method includes the following steps: A. enabling a piston of a first pump material device to move towards a first limit position of the first pump material device; B. enabling a piston of a second pump material device to move towards the first limit position of the second pump material device before the piston of the first pump material device reaches the first limit position; C. enabling the piston of the first pump material device to move from the first limit position to the second limit position of the first pump material device before the piston of the second pump material device reaches the first limit position of the second pump material device; D. enabling the piston of the second pump material device to move from the first limit position to the second limit position of the second pump material device before the piston of the first pump material device reaches the second limit position of the first pump material device; and E. returning to the step A before the piston of the second pump material device reaches the second limit position of the second pump material device. By means of the system, the method and the truck, driving devices of the two pump material devices can change direction in staggering mode (namely the actions of the two driving devices have certain coincidence area), and flow fluctuation of material outlets is avoided.

Description

technical field [0001] The invention relates to the technical field of construction machinery pumping, in particular to a continuous feeding system and a control method thereof, and a fire truck for a climbing platform. Background technique [0002] The pumping system of fire trucks on climbing platforms in the prior art adopts the pumping system of double-acting cylinders. Specifically, the pumping system includes a water tank, a first pumping device, a second pumping device and a water outlet, wherein: the first A pumping device and the second pumping device both include a pumping cylinder and a driving device; the inside of the pumping cylinder is provided with a piston, and the piston forms a first water pumping interval between the internal intervals of the pumping cylinder. cavity and the second pumping cavity, the suction ports of the first pumping cavity and the second pumping cavity are connected to the water tank, the drains of the first pumping cavity and the seco...

Claims

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Application Information

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IPC IPC(8): F04B23/06F15B11/20F15B13/02
Inventor 易小刚杨鑫陈铭
Owner SANY AUTOMOBILE MFG CO LTD
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