CN1261119A

CN1261119A - Detecting equipment for synchronous opening and closing of sluice gates

Info

Publication number: CN1261119A
Application number: CN 99115218
Authority: CN
Inventors: 方之缶
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-15
Filing date: 1999-01-15
Publication date: 2000-07-26

Abstract

An equipment for detecting the synchronous opening or closing of sluice gate is composed of U-shaped communication tube, pressure sensors arranged at bottoms of two endsin said tube, hydraulic oil in tube and air permeable covers of two vertical ends. It is arranged on the top of arc sluice gate. Said sensors are electrically connected to valve group in pump room. The left and right cylinders can be regulated according to the voltage difference of two sensors to ensure the height difference of top of sluice gate is less than 10 mm.

Description

Detecting equipment for synchronous opening and closing of sluice gates

The present invention is a kind of detecting equipment for synchronous opening and closing of sluice gates, belongs to the equipment technical field of measuring two above force value simultaneously.Elevation horizontal synchronization side amount during the keying that is particularly useful in the hydraulic engineering revealing top Segment gate and plane gate.

Revealing the top Segment gate is remittance flood facility main on the Hydraulic and Hydro-Power Engineering, and along with increasing of large water conservancy hydroelectric engineering, the open/close machinery that reveals the top Segment gate adopts the also more and more of hydraulic hoist.Hydraulic hoist opens and closes gate and promotes or transfer gate by two oil cylinders, but will reach the synchronously strict of two oil cylinders, and this is than difficulty.For making gate steadily lifting in opening-closing process, must keep the level on door top, and left-leaning right oblique phenomenon not occur, two point height differences are not more than 10 millimeters about general requirements gate top.Abroad in design and practice, still be difficult to accomplish at present.This at first will solve the detection means of the asynchronous value of two oil cylinders, according to nonsynchronous detected value, by the size of proportion electro-magnet control hydraulic valve oil-in or oil-out, to reach the synchronous of two oil cylinders.So asynchronous accuracy of detection height, two oil cylinder synchronization accuracies are also high.That is just more difficult but obtain the asynchronous detected value of high accuracy.

Have plenty of in the known technology at piston rod subscript scale, on piston rod, be coated with ceramic protective layer again, and at the front end sensor installation of hydraulic cylinder.The stroke of oil cylinder piston bar, the position that goes out piston rod by the most degree carved on the piston rod and sensor measurement.The advantage of this measuring system is no mechanical transmission mechanism such as gear, a wire rope etc. between piston rod and the sensor.This device records in practice that two point height differences are 17 millimeters about the gate top.This is because this device is not that directly to measure about the gate top two point heights poor according to one's analysis, but there is bigger error the position of measurement piston rod between the two.This sensor measuring system also has than mistake itself in addition, and two point height differences are no more than 10 millimeters requirement about the gate top so be difficult to satisfy.The disadvantage of this cover oil cylinder synchronized measurement system is the expense costliness simultaneously, because must buy the piston rod oil cylinder that the said firm is coated with pottery; Also has plenty of the employing displacement transducer.Be oil cylinder piston bar when moving,, drive displacement transducer and rotate, thereby record oil cylinder piston bar displacement as steel cable, gear, roller by machine driving.The advantage of this method is that cost is low, shortcoming is low precision, and precision was poorer when especially stroke was big; Also have other as by measuring the oil mass of turnover oil cylinder, be converted into piston rod stroke etc., the error of these methods is bigger.

The purpose of this invention is to provide a kind of detecting equipment for synchronous opening and closing of sluice gates.Use this device can guarantee that headstock gear makes gate maintenance level when opening and closing gate and not crooked.

Just should aim at detected object the levelness of gate according to this purpose of the present invention, be about to the object that hydraulic hoist detects synchronously, change the levelness that detects gate into by detecting the oil cylinder piston bar.And the discrepancy in elevation that requires headstock gear door when opening and closing gate to push up 2 left side points and the right point is lower than 10 millimeters maximum permissible values.The present invention realizes that the solution of this purpose is, a kind of detecting equipment for synchronous opening and closing of sluice gates is provided, it includes sensor (4), also include communicating pipe (3), hydraulic oil (2) and ventilating cover (2), above-mentioned communicating pipe (3) is the U font, sensor (4) is two pressure sensors, they are separately positioned on communicating pipe the tube chamber bottom, the left and right sides of (3), ventilating cover (1) also is two, they are added a cover respectively at communicating pipe (3) left and right sides mouth of pipe up, hydraulic oil (2) then was injected in communicating pipe (3), made communicating pipe (3) both sides mouth of pipe liquid level a little less than orifice plane.

The detecting equipment for synchronous opening and closing of sluice gates of the present invention that constitutes thus is installed in it on Segment gate (5) shown in Fig. 1-4 when using, make this device about two sensors (4) be positioned at left and right two ends of girder on the Segment gate, the electric wire of pressure sensor props up hinge by Segment gate and guides to the oil pump room electricity and connect the valve group.The liquid level at two ends remains at same horizontal plane owing to communicating pipe, if gate tilts, the magnitude of voltage of two pressure sensors output has nothing in common with each other, adjust left and right two oil cylinder of hydraulic headstock gear (6) the different amount of draining the oil or oil inlet quantity according to different magnitudes of voltage, it is synchronous to reach left and right two oil cylinders.The accuracy of detection of this sync detection device can reach 2 millimeters, because of the maximum range of pressure sensor only is 500 millimeters, precision is 3/1000ths, error amount is 1.5 millimeters, has therefore both made the influence that adds various other factorses also can reach the gate top inclination discrepancy in elevation fully and has been no more than 10 millimeters designing requirement.The force value of above-mentioned two pressure sensors shows in the centralized operation chamber that all the difference of two values is the asynchronous value of hydraulic hoist.Simultaneously use a precision lower again, low-cost roller type displacement transducer is surveyed the oil cylinder piston throw of lever, shows gatage.This solution low price, buying is easy, reliable operation.

Below in conjunction with the accompanying drawing illustrated embodiment the present invention further is illustrated.

Fig. 1 is the detecting equipment for synchronous opening and closing of sluice gates structural representation;

Fig. 2 be among Fig. 1 A-A to sectional view;

Fig. 3 is to use one of reference diagram;

Fig. 4 is to use two of reference diagram.

Among Fig. 1-4, wherein:

1-ventilating cover 2-hydraulic oil 3-communicating pipe 4-sensor

5-Segment gate 6-oil cylinder of hydraulic headstock gear

Referring to Fig. 1-4, the detecting equipment for synchronous opening and closing of sluice gates of present embodiment has the U-shaped communicating pipe (3) that the diameter of drawing materials is the steel tube bending of 200 millimeters of Φ, respectively installing one in communicating pipes (3) two side pipes, to measure the water level stroke be the pressure sensor (4) of 0-500 millimeter, and the installation elevation of sensor (4) can be finely tuned.Be communicated with horizontal steel pipe level between the straight steel pipe of left and right vertical heavily fortified point, irritate hydraulic oil (2) in the steel pipe, hydraulic oil (2) is irritated to 400 millimeters places more than the pressure sensor.The antifouling waterproof and breathable lid of bell-type (1) of a similar fuel tank air filter of communicating pipes (3) two side roof part installation, the power line of pressure sensor props up hinge by Segment gate and causes the oil pump room electricity and connect the valve group, and this detecting equipment for synchronous opening and closing of sluice gates of present embodiment on probationly is proved to be synchronous detecting gate and pushes up left and right trueness error at 2 and be not more than 5 millimeters through trial-manufacture of sample is on-the-spot as shown in Figure 3-4.If be used for less engineering, also can select for use precision lower, be centesimal pressure sensor as precision, cost will be lower like this, and synchronization accuracy also can meet the demands.

Claims

1, a kind of detecting equipment for synchronous opening and closing of sluice gates, it includes sensor (4), it is characterized in that, it also includes communicating pipe (3), hydraulic oil (2) and ventilating cover (2), above-mentioned communicating pipe (3) is the U font, sensor (4) is two pressure sensors, they are separately positioned on communicating pipe the tube chamber bottom, the left and right sides of (3), ventilating cover (1) also is two, they are added a cover respectively at communicating pipe (3) left and right sides mouth of pipe up, hydraulic oil (2) then was injected in communicating pipe (3), made communicating pipe (3) both sides mouth of pipe liquid level a little less than orifice plane.