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Stepless speed regulating hydraulic driving system of spiral conveyer for super-large diameter shield machine

A screw conveyor and super-large-diameter technology, which is applied in the field of stepless speed-adjusting hydraulic drive system for super-large-diameter shield tunneling screw conveyors, can solve problems such as insufficient muck conveying capacity, insufficient escape torque, and small drive torque Wide range, novel design, and the effect of ensuring stability

Active Publication Date: 2017-05-31
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a stepless speed-regulating hydraulic drive system for a super-large-diameter shield screw conveyor, which solves the problems of small driving torque, insufficient escape torque, and high speed in the current large-diameter shield screw conveyor drive system. It can adapt to the working conditions of high torque and high speed, and at the same time, it can realize functions such as stepless speed regulation, overload protection, two-way rotation, etc., with stable operation performance and good use effect

Method used

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  • Stepless speed regulating hydraulic driving system of spiral conveyer for super-large diameter shield machine
  • Stepless speed regulating hydraulic driving system of spiral conveyer for super-large diameter shield machine
  • Stepless speed regulating hydraulic driving system of spiral conveyer for super-large diameter shield machine

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Embodiment 1

[0026] Embodiment one, see figure 1 As shown, a stepless speed-regulating hydraulic drive system for a screw conveyor for super-large-diameter shield tunneling, including a fuel tank, a hydraulic pump set, a speed-regulating hydraulic circuit, a reducer, a hydraulic motor set, and a control unit. The hydraulic circuit is connected with the hydraulic motor group. The speed regulating hydraulic circuit is equipped with an oil separation and collection valve module, a flushing control valve module, a control pump, and a sensor module. The oil separation and collection valve module, the flushing control valve module and the sensor module are all connected to the The control unit is connected by communication. The hydraulic pump group includes hydraulic pump 1 and hydraulic pump 2. The hydraulic pump 1 and hydraulic pump 2 are connected to the hydraulic motor group through the oil separation and oil collection valve module. The hydraulic pump 1, hydraulic pump Pump 2 is provided wi...

Embodiment 2

[0028] Embodiment two, see Figure 1~5 As shown, it is basically the same as Embodiment 1, except that the oil separation and collection valve module also includes a hot oil valve group, and the hot oil valve group is connected to the oil tank.

[0029] Preferably, the hot oil valve group includes hot oil valve 1 and hot oil valve 2; said hot oil valve 1 and hot oil valve 2 both include: hydraulic control valve, back pressure valve, hydraulic control valve control end and hydraulic motor group The other end of the hydraulic control valve is connected to the back pressure valve, and a damping hole is also arranged on the connecting pipeline between the hydraulic control valve and the back pressure valve, and the outlet end of the back pressure valve is connected to the fuel tank through the oil return pipeline.

[0030] Above, hydraulic pump 1 and hydraulic pump 2 are both swash plate axial piston pumps. see figure 1 As shown in , the oil separation and collection valve modul...

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Abstract

The invention relates to a stepless speed regulating hydraulic driving system of a spiral conveyer for a super-large diameter shield machine. The stepless speed regulating hydraulic driving system comprises an oil case, a hydraulic pump set, a speed regulating hydraulic circuit, a reducer, a hydraulic motor set and a control unit. An oil separating and collecting valve module, a rinsing control valve module, a control pump and a sensor module are arranged in the speed regulating hydraulic circuit. The hydraulic pump set comprises a first hydraulic pump and a second hydraulic pump. The first hydraulic pump and the second hydraulic pump are both provided with displacement regulating mechanisms. The hydraulic motor set comprises a first hydraulic motor and a second hydraulic motor which operate simultaneously. The first hydraulic motor and the second hydraulic motor are both provided with output variable regulating mechanisms. The displacement regulating mechanisms and the output variable regulating mechanisms are in communicating connection with the control unit. The hydraulic driving system can meet the requirements for large torque and high rotation speed, has the functions of variable-speed regulating, overload protection and double-way rotating and is safe and reliable, and the stability of the operation performance of the spiral conveyer is guaranteed effectively.

Description

technical field [0001] The invention relates to the technical field of hydraulic control of screw conveyors, and relates to a stepless speed-regulating hydraulic drive system for screw conveyors for super-large-diameter shield tunneling machines, which can meet the needs of large-torque, high-speed screw conveyor drive systems for super-large-diameter shield machines. need. Background technique [0002] At present, the screw conveyor, as one of the key components of the shield machine, mainly transports the muck in the excavated soil bin to the muck transfer system such as the belt conveyor. The driving mechanism of the screw conveyor of the existing shield machine is driven by a hydraulic motor, the output torque is small, and the excavation capacity is low, which seriously affects the speed of the whole machine in the construction of the shield machine and increases the construction cost and other problems. The reliability and high efficiency of the screw conveyor are rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/17F15B13/06F15B20/00F15B21/08B65G33/34
CPCB65G33/34F15B11/17F15B13/06F15B20/00F15B21/087F15B2211/20546F15B2211/20576F15B2211/865
Inventor 陈良武李光赵康峰齐保卫曾翔周小磊朱雷詹晨菲孙向前
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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