CN105909577B - A kind of quick tensioning hydraulic station - Google Patents
A kind of quick tensioning hydraulic station Download PDFInfo
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- CN105909577B CN105909577B CN201610380222.XA CN201610380222A CN105909577B CN 105909577 B CN105909577 B CN 105909577B CN 201610380222 A CN201610380222 A CN 201610380222A CN 105909577 B CN105909577 B CN 105909577B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of quick tensioning hydraulic station,Including programmable controller PLC,Tensioning hydro-cylinder,Hydraulic system and the tension sensor for detecting conveying belt machine tension signal,Tension sensor is communicated to connect with programmable controller PLC,Hydraulic system includes fuel tank,Fast feed circuit,Slowly feeding circuit and the solenoid directional control valve being arranged at tensioning hydro-cylinder oil inlet,Fast feed circuit jog circuit of easing up is connected with fuel tank,The ease up end in jog circuit of the end in fast feed circuit is connected with the input end of solenoid directional control valve,The first oil pump and the first motor are provided with fast feed circuit,Slowly the second oil pump and the second motor are provided with feeding circuit,The operating pressure and oil mass of first oil pump and the second oil pump differ,First motor and the second motor are connected with above-mentioned programmable controller PLC.Hydraulic system in the present invention is capable of providing at least three kinds of different feed speeds, to meet the different tensioning rate request of conveying belt machine.
Description
Technical field
The invention belongs to ribbon conveyer technical field, more particularly to a kind of quick tensioning hydraulic station.
Background technology
The confidential normal operation of belt conveying, conveyer belt must have certain tensile force.Conveyer belt has certain tensile force
It can just make to produce enough frictional force between conveyer belt and driving drum, ensure that driving drum driving conveying belt runs well.
Tight device is exactly to run well to provide the auxiliary device of tensile force for ribbon conveyer, in conveyer belt transportation system can not or
Lack.Specifically, the main function of tensioning apparatus is：(1) ensure that conveyer belt has enough tension force in driving drum burble point, really
Protect frictional drive condition；(2) minimum sag condition of the conveyer belt in minimum tension region is ensured；(3) conveyer belt is compensated for a long time
The permanent elongation produced is run, conveyer belt is remained certain tension force；(4) storage band can also be played the role of sometimes.In band
During formula conveyer manufactures and designs, it is necessary to tensioning apparatus is reasonably selected, accomplishes not only to can guarantee that conveyer safe handling, but also it is economical real
Favour.
Belt conveyor tensioning device mainly has at present：Spiral tensioning, be twisted tensioning, heavy-hammer-tightening, tensioning car manually
Tightly, hydraulic tensioning etc. is several.Automatic hydraulic tensioning device is because possessing the start-up course and operational process that can set conveyer belt
Tension force, makes conveyer belt be run all the time in the range of a reasonable tension, so as to improve the tension force utilization rate of conveyer belt, reduces conveying
Sliding friction damage and conveyed between band and roller with the advantages of the rubber ratio of driving drum pressure as current large belt
A kind of tensioning mode that machine conveyer belt generally uses, it is using the form of tensioning trolley+hydraulic cylinder+pumping plant, passes through tensioning
Trolley tightens conveyer belt, and the tightness of conveyer belt in the process of running is automatically adjusted by hydraulic cylinder.It is existing automatic
Using the combining form of constant displacement pump+electro-hydraulic proportional valve, it is pressed the control pressurer system of the hydraulic cylinder of Hydranlic tensioner
Power degree of regulation is low, and there are dead band, for oil pump according to maximum flow work, system heat generation amount is big, and energy consumption is big, and fixed because using
Amount pump, tensioning constant airspeed is constant, can not fully meet the needs of actual condition.
It can be seen from the above that the prior art is up for further improving.
The content of the invention
The present invention is to avoid above-mentioned the shortcomings of the prior art part, there is provided a kind of quick tensioning hydraulic station, the liquid
Pressure station is capable of providing three kinds of different feed speeds, to meet the different tensioning rate request of conveying belt machine.
The technical solution adopted in the present invention is：
A kind of quick tensioning hydraulic station, including programmable controller PLC, tensioning hydro-cylinder, for for tensioning hydro-cylinder fuel feeding
Hydraulic system and the tension sensor for detecting conveying belt machine tension signal, tension sensor lead to programmable controller PLC
Letter connection, hydraulic system include fuel tank, fast feed circuit, slowly feed circuit and be arranged at tensioning hydro-cylinder oil inlet
Solenoid directional control valve, the ease up beginning in jog circuit of the beginning in fast feed circuit are connected with fuel tank, fast feed circuit
The ease up end in jog circuit of end is connected with the input end of solenoid directional control valve, and the first oil is provided with fast feed circuit
First motor of the first oil pump of pump and driving, slowly feeds the second electricity that the second oil pump is provided with circuit and drives the second oil pump
Machine, the operating pressure and oil mass of the first oil pump and the second oil pump differ, and the first motor and the second motor are compiled with above-mentioned
Range controller PLC is connected.
The operating pressure of first oil pump is less than the operating pressure of the second oil pump, and the oil mass of the first oil pump is more than the second oil
The oil mass of pump, the first motor and the second motor are threephase asynchronous.
The fast feed circuit, which is eased up, is both provided with fuel-quantity transducer on jog circuit, each fuel-quantity transducer with it is upper
State programmable controller PLC communication connection.
The hydraulic system further includes outlet pressure testing agency, and outlet pressure testing agency includes being arranged on electromagnetic switch
The pressure sensor of valve input end and the throttle valve being connected with the port of export of solenoid valve reversal valve, returning between throttle valve and fuel tank
The 3rd overflow valve is provided with oil pipe line.
The multiple spot position travel switch for detecting the oil cylinder piston throw of lever, multiple spot position are provided with the tensioning hydro-cylinder
Travel switch is communicated to connect with above-mentioned programmable controller PLC.
The hydraulic system further includes manual-operated emergent circuit, is disposed with manually along fuel feeding direction on manual-operated emergent circuit
Pressure pump and hand-operated direction valve.
The hydraulic system has four kinds of operating modes：First motor is opened, and fast feed circuit is tensioning hydro-cylinder fuel feeding, the
Two motors are closed, and it is not tensioning hydro-cylinder fuel feeding slowly to feed circuit；First motor is closed, and fast feed circuit is not tensioning hydro-cylinder
Fuel feeding, the second motor are opened, and it is tensioning hydro-cylinder fuel feeding slowly to feed circuit；First motor and the second motor are opened at the same time, quickly
Feeding circuit is eased up jog circuit while be tensioning hydro-cylinder fuel feeding；First motor and the second motor are turned off, and fast feed is returned
Road jog circuit of easing up is not tensioning hydro-cylinder fuel feeding, and it is tensioning hydro-cylinder fuel feeding that manual-operated emergent circuit, which is opened,.
The fuel tank includes rod chamber and rodless cavity, and above-mentioned fast feed circuit, slowly feed circuit, manual-operated emergent circuit
It is connected with rod chamber；Along fuel feeding on oil feed line between the oil outlet of first oil pump and the input end of solenoid directional control valve
Direction is disposed with the first connected check valve, the first fine filter and the first angle one-way valve, wherein, the first fine filter
Oil feed line between the first angle one-way valve and the first overflow valve is provided between the oil outlet of fuel tank；Second oil pump
Oil outlet and the input end of solenoid directional control valve between oil feed line on that second to be connected is disposed with along fuel feeding direction is single
To valve, the second fine filter and the second angle one-way valve, the oil feed line between the second fine filter and the second angle one-way valve
The second overflow valve is provided between the oil outlet of fuel tank；Between second angle one-way valve and the oil inlet end of solenoid directional control valve
Safety valve is provided between oil feed line and the oil outlet of fuel tank.
The hydraulic system further includes vibration-proof pressure gauge and accumulator group, vibration-proof pressure gauge and accumulator group with it is above-mentioned fast
Speed feeding circuit, slowly feeding circuit, manual-operated emergent circuit are connected, and accumulator group includes two accumulators, one of accumulation of energy
Device and above-mentioned first check valve, the first angle one-way valve cooperatively form the first holding hydraulic pressure system, another accumulator with it is upper
State the second check valve, the second angle one-way valve cooperatively forms the second holding hydraulic pressure system.
Oil-suction oil filter, the fuel tank are both provided between first oil pump and fuel tank, between the second oil pump and fuel tank
On be provided with temperature liquid level meter and air filter.
By adopting the above-described technical solution, having the beneficial effect that acquired by the present invention：
1st, traditional oil cylinder working-pressure control system uses constant displacement pump and electro-hydraulic proportional valve, and pressure degree of regulation is low, and deposits
In dead band, oil pump works by maximum stream flow, and the caloric value of system is big.And returned in the present invention for the fast feed of tensioning hydro-cylinder fuel feeding
Road jog circuit of easing up can be respectively tensioning hydro-cylinder fuel feeding, also can be tensioning hydro-cylinder fuel feeding at the same time, both work respectively with together
When work in the case of, can obtain three kinds of different oil masses, indirectly provide three kinds tensioning speed, energy consumption is small, and energy-saving effect is shown
Write, and meet the demand of conveying belt machine difference tensioning degree.
2nd, the antifouling property of the quick tensioning hydraulic station in the present invention will be far above existing ratio voltage regulating mode, to oil
The pollution of liquid is insensitive.
3rd, the tension signal of the tension sensor detection conveying belt machine in the present invention, and the tension signal is implemented to be transmitted to
Programmable controller PLC, after programmable controller PLC calculates analysis, control instruction is sent to the first motor and the second motor,
And then the operating of the first oil pump and the second oil pump is controlled, in operation process, detected in real time in oil feed line by fuel-quantity transducer
Flow, and detect by pressure sensor the pressure of oil feed line outlet in real time, and by the flow signal detected and pressure signal
Real-time Transmission realizes that flow rate of hydraulic system and the real-time of pressure are adjusted to programmable controller PLC by programmable controller PLC control
Section, the degree of automation are high.
4th, manual-operated emergent circuit is provided with hydraulic system of the invention, meets the demand of manual fuel feeding, and in system
Power-off or in the case that motor is damaged, can carry out fluid supply to oil cylinder, ensure that the stability of system operation and reliable
Property；Holding hydraulic pressure system makes the first motor and the second motor be service intermittent, reduces energy expenditure.
Brief description of the drawings
Fig. 1 is the control principle drawing of the present invention.
Fig. 2 is the hydraulic schematic diagram of the present invention.
Fig. 3 is the relative position relation schematic diagram of conveying belt machine, tensioning trolley and tensioning hydro-cylinder.
Wherein,
1st, the second oil-suction oil filter 2, the second motor 3, the second oil pump 4, second check valve the 5, second essence filtering
Device 6, the second angle one-way valve 7, the second overflow valve 8, the first oil-suction oil filter 9, the first motor 10, the first oil pump
11st, the first check valve 12, the first fine filter 13, the first fuel-quantity transducer 14, the first angle one-way valve 15, first
Overflow valve 16, safety valve 17, manual pressure pump 18, hand-operated direction valve 19, vibration-proof pressure gauge 20, accumulator group
21st, pressure sensor 22, solenoid directional control valve 23, throttle valve 24, the 3rd overflow valve 25, tension sensor 26,
Locking oil cylinder 26.1, rod chamber 26.2, rodless cavity 27, air filter 28, temperature liquid level meter 29, tensioning trolley
30th, idler roller 31, conveyer belt 32, guide rail 33, multiple spot position travel switch
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the present invention is not limited to
These embodiments.
As depicted in figs. 1 and 2, a kind of quick tensioning hydraulic station, including programmable controller PLC, tensioning hydro-cylinder 26, be used for
Tension sensor 25 for the hydraulic system of 26 fuel feeding of tensioning hydro-cylinder and for detecting conveying belt machine tension signal, tension sensor
25 communicate to connect with programmable controller PLC, and hydraulic system includes fuel tank, fast feed circuit, slowly feeds circuit and set
Put the solenoid directional control valve 22 at 26 oil inlet of tensioning hydro-cylinder, the beginning in fast feed circuit ease up jog circuit beginning it is equal
It is connected with fuel tank, the end in fast feed circuit is eased up the input end phase of the end with solenoid directional control valve 22 in jog circuit
Even, the first oil pump 10 is provided with fast feed circuit and drives the first motor 9 of the first oil pump 10, slowly fed and set on circuit
It is equipped with the second oil pump 3 and drives the second motor 2 of the second oil pump 3, the first motor 9 and the second motor 2 is three-phase asynchronous electric
Machine, the first oil pump 10 are low pressure and mass flow oil pump, and the second oil pump 3 is high-pressure low-flow oil pump；Set on the fast feed circuit
The first fuel-quantity transducer 13 is equipped with, slowly feeds and is both provided with the second fuel-quantity transducer, first, second fuel-quantity transducer on circuit
Communicated to connect with above-mentioned programmable controller PLC；The first oil-suction oil filter is provided between first oil pump 10 and fuel tank
8th, the second oil-suction oil filter 1 is provided between the second oil pump 3 and fuel tank, temperature liquid level meter 28 and air are provided with the fuel tank
Filter 27；The hydraulic system further includes manual-operated emergent circuit, and hand is disposed with along fuel feeding direction on manual-operated emergent circuit
Dynamic pressure pump 17 and hand-operated direction valve 18；The hydraulic system further includes vibration-proof pressure gauge 19 and accumulator group 20, shatter-proof pressure
Table 19 and accumulator group 20 feed circuit with above-mentioned fast feed circuit, slowly, manual-operated emergent circuit is connected.
Specifically, the fuel tank includes rod chamber 26.1 and rodless cavity 26.2, slowly above-mentioned fast feed circuit, feeding
Circuit, manual-operated emergent circuit are connected with rod chamber 26.1；The oil outlet of first oil pump 10 and solenoid directional control valve 22 into
On oil feed line between mouthful end the first connected check valve 11, the first fine filter 12 and the are disposed with along fuel feeding direction
One angle one-way valve 14, wherein, oil feed line and fuel tank between the first fine filter 12 and the first angle one-way valve 14 go out
The first overflow valve 15 is provided between hydraulic fluid port；Between the oil outlet of second oil pump 3 and the input end of solenoid directional control valve 22
On oil feed line the second connected check valve 4, the second fine filter 5 and the second angle one-way valve are disposed with along fuel feeding direction
6, oil feed line between the second fine filter 5 and the second angle one-way valve 6 and second is provided between the oil outlet of fuel tank overflows
Flow valve 7；Oil feed line between second angle one-way valve 6 and the oil inlet end of solenoid directional control valve 22 and between the oil outlet of fuel tank
It is provided with safety valve 16.The accumulator group 20 includes two accumulators, one of accumulator and above-mentioned first check valve 11,
First angle one-way valve 14 cooperatively forms the first holding hydraulic pressure system, another accumulator and above-mentioned second check valve 4, second
Angle one-way valve 6 cooperatively forms the second holding hydraulic pressure system, the first pressure-retaining system and the second pressure-retaining system using respective double lists
Hydraulic circuit is locked to valve, is used cooperatively with accumulator group 20, ensures that system pressure does not decline.
The hydraulic system further includes outlet pressure testing agency, and outlet pressure testing agency includes being arranged on electromagnetic switch
The pressure sensor 21 of 22 input end of valve and the throttle valve 23 being connected with the port of export of solenoid valve reversal valve 22, throttle valve 23 and oil
The 3rd overflow valve 24 is provided with oil feed line between case.
The multiple spot position travel switch 33 for detecting the oil cylinder piston throw of lever, multiple spot are provided with the tensioning hydro-cylinder 26
Position travel switch 33 and above-mentioned programmable controller PLC communicate to connect, and by the stroke of the tensioning hydro-cylinder 26 collected in real time
Signal is transmitted to programmable controller PLC in time, so that programmable controller PLC combination tension signal and stroke signal are to first
9 and second motor 2 of motor makes control.
The hydraulic system has four kinds of operating modes：First motor 9 is opened, and fast feed circuit supplies for tensioning hydro-cylinder 26
Oil, the second motor 2 are closed, and it is not 26 fuel feeding of tensioning hydro-cylinder slowly to feed circuit；First motor 9 is closed, and fast feed circuit is not
For 26 fuel feeding of tensioning hydro-cylinder, the second motor 2 is opened, and it is 26 fuel feeding of tensioning hydro-cylinder slowly to feed circuit；First motor 9 and the second electricity
Machine 2 is opened at the same time, and fast feed circuit is eased up jog circuit while be 26 fuel feeding of tensioning hydro-cylinder；That is, programmable control
After device PLC processed can carry out calculating analysis to the tension signal that the transmission of tension signal sensor 25 comes, to the first motor 9 and second
Motor 2 sends control instruction, controls the first motor 9 and the second motor 2 to work or work at the same time respectively, so that hydraulic system is
Locking oil cylinder 26 provides three kinds of different flows, so as to provide three kinds of tensioning speed indirectly；It is first as the 4th kind of operating mode
9 and second motor 2 of motor is turned off, and fast feed circuit jog circuit of easing up is not 26 fuel feeding of tensioning hydro-cylinder, manually should
It is 26 fuel feeding of tensioning hydro-cylinder that anxious circuit, which is opened,.Under different operating modes, hydraulic system be supplied to tensioning hydro-cylinder 26 oil mass and
The speed of supply oil mass differs, so as to provide four kinds of different tensioning speed for conveyer belt 31, can meet conveyer belt
31 different tensioning demands.
During hydraulic work system in the present invention, it is preferred that first pass through and open the first motor 9 and drive low pressure and mass flow pump work
Make, realize the fast feed to tensioning hydro-cylinder 26, after being triggered to the multiple spot position travel switch of tensioning hydro-cylinder 26, the first motor breaks
Electricity, the second motor 2 are opened, and drive high-pressure low-flow pump work, slow hydraulic tensioning cylinder, obtains stable system pressure, avoid
Compression shock is caused to conveyer belt 31, extends the service life of conveyer belt 31.
It should be noted that only to 26.1 fuel feeding of rod chamber of tensioning hydro-cylinder 26 during the hydraulic work system of the present invention,
When need not being tensioned, tensioning hydro-cylinder 26 is set to reset and be set at the oil return of tensioning hydro-cylinder 26 by the tension force of itself of belt
23 and the 3rd overflow valve 24 of throttle valve of pressure adjustable is put, the purpose is to retain rod chamber 26.1 to have a certain amount of hydraulic oil,
The time is saved for next quick tensioning.
As shown in figure 3, the piston rod of above-mentioned tensioning hydro-cylinder 26 is connected by steel wire rope with tensioning trolley 29, trolley 29 is tensioned
Jockey pulley 30 is driven to be moved along guide rail 32, so as to fulfill the tension adjustment to the conveyer belt 31 being nested with jockey pulley 30.
The part do not addressed in the present invention uses or uses for reference prior art and can be achieved.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that indicating or implying relatively important
Property.
Specific embodiment described herein is only the spiritual example explanation to the present invention.Belonging to the present invention
Those skilled in the art can do described specific embodiment various modifications or additions or using similar
Mode substitutes, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of quick tensioning hydraulic station, it is characterised in that including programmable controller PLC, tensioning hydro-cylinder, for oily to be tensioned
The hydraulic system of oil supply cylinder and the tension sensor for detecting belt tension signal, tension sensor and programmable controller
Plc communication connects, and hydraulic system includes fuel tank, fast feed circuit, slowly feeds circuit and be arranged on tensioning hydro-cylinder oil inlet
Solenoid directional control valve at mouthful, the ease up beginning in jog circuit of the beginning in fast feed circuit are connected with fuel tank, fast feed
The ease up end in jog circuit of the end in circuit is connected with the input end of solenoid directional control valve, and the tensioning hydro-cylinder includes bar
Chamber and rodless cavity, above-mentioned fast feed circuit, slowly feeding circuit is connected with rod chamber, and the is provided with fast feed circuit
One oil pump and the first motor for driving the first oil pump, slowly feed and the second oil pump are provided with circuit and drives the of the second oil pump
Two motors, the operating pressure and oil mass of the first oil pump and the second oil pump differ, the first motor and the second motor with it is above-mentioned
Programmable controller PLC is connected.
2. quick tensioning hydraulic station according to claim 1, it is characterised in that the operating pressure of first oil pump is less than
The operating pressure of second oil pump, the oil mass of the first oil pump are more than the oil mass of the second oil pump, and the first motor and the second motor are three
Phase asynchronous motor.
3. quick tensioning hydraulic station according to claim 1, it is characterised in that ease up jog in the fast feed circuit
Fuel-quantity transducer is both provided with circuit, each fuel-quantity transducer is communicated to connect with above-mentioned programmable controller PLC.
4. quick tensioning hydraulic station according to claim 1, it is characterised in that the hydraulic system further includes outlet pressure
Testing agency, outlet pressure testing agency include being arranged on the pressure sensor and and solenoid directional control valve of solenoid directional control valve input end
The throttle valve that is connected of the port of export, be provided with the 3rd overflow valve on the oil return line between throttle valve and fuel tank.
5. quick tensioning hydraulic station according to claim 1, it is characterised in that be provided with the tensioning hydro-cylinder for examining
The multiple spot position travel switch of the oil cylinder piston throw of lever is surveyed, multiple spot position travel switch communicates with above-mentioned programmable controller PLC
Connection.
6. quick tensioning hydraulic station according to claim 1, it is characterised in that the hydraulic system further includes manual-operated emergent
Circuit, is disposed with manual pressure pump and hand-operated direction valve on manual-operated emergent circuit along fuel feeding direction.
7. quick tensioning hydraulic station according to claim 6, it is characterised in that the hydraulic system has four kinds of Working moulds
Formula：First motor is opened, and fast feed circuit is tensioning hydro-cylinder fuel feeding, and the second motor is closed, and it is not tensioning slowly to feed circuit
Oil cylinder fuel feeding；First motor is closed, and fast feed circuit is not tensioning hydro-cylinder fuel feeding, and the second motor is opened, and slowly feeds circuit
For tensioning hydro-cylinder fuel feeding；First motor and the second motor are opened at the same time, fast feed circuit ease up jog circuit and meanwhile for
Locking oil cylinder fuel feeding；First motor and the second motor are turned off, and fast feed circuit jog circuit of easing up is not tensioning hydro-cylinder
Fuel feeding, it is tensioning hydro-cylinder fuel feeding that manual-operated emergent circuit, which is opened,.
8. quick tensioning hydraulic station according to claim 6, it is characterised in that the manual-operated emergent circuit and rod chamber phase
Even；Set gradually on oil feed line between the oil outlet of first oil pump and the input end of solenoid directional control valve along fuel feeding direction
There are the first connected check valve, the first fine filter and the first angle one-way valve, wherein, the first fine filter and the first right angle list
The first overflow valve is provided between the oil feed line and the oil outlet of fuel tank between valve；The oil outlet of second oil pump and electricity
On oil feed line between the input end of magnetic reversal valve the second connected check valve, the second smart mistake are disposed with along fuel feeding direction
Filter and the second angle one-way valve, the oil outlet of oil feed line and fuel tank between the second fine filter and the second angle one-way valve
Between be provided with the second overflow valve；Oil feed line and fuel tank between second angle one-way valve and the input end of solenoid directional control valve
Safety valve is provided between oil outlet.
9. quick tensioning hydraulic station according to claim 8, it is characterised in that the hydraulic system further includes shatter-proof pressure
Table and accumulator group, vibration-proof pressure gauge and accumulator group feed circuit with above-mentioned fast feed circuit, slowly, manual-operated emergent returns
Road is connected, and accumulator group includes two accumulators, and one of accumulator is matched somebody with somebody with above-mentioned first check valve, the first angle one-way valve
Close and form the first holding hydraulic pressure system, another accumulator is cooperatively formed with above-mentioned second check valve, the second angle one-way valve
Second holding hydraulic pressure system.
10. quick tensioning hydraulic station according to claim 1, it is characterised in that between first oil pump and fuel tank, the
Oil-suction oil filter is both provided between two oil pumps and fuel tank, temperature liquid level meter and air filter are provided with the fuel tank.
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| CN201610380222.XA CN105909577B (en) | 2016-06-01 | 2016-06-01 | A kind of quick tensioning hydraulic station |
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| CN201610380222.XA CN105909577B (en) | 2016-06-01 | 2016-06-01 | A kind of quick tensioning hydraulic station |
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| CN105909577B true CN105909577B (en) | 2018-05-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018132837A2 (en) * | 2017-01-16 | 2018-07-19 | Thyssenkrupp Industrial Solutions (Usa), Inc. | Hydraulic tensioning system for conveyors |
| CN108488119A (en) * | 2018-03-30 | 2018-09-04 | 东莞市环宇文化科技有限公司 | A kind of automatic erector with hydraulic control system |
| CN110030218A (en) * | 2019-05-15 | 2019-07-19 | 广州计量检测技术研究院 | Pump hydraulic loading system and its application method |
| CN112728197A (en) * | 2020-12-31 | 2021-04-30 | 山东鼎昌智能科技有限公司 | Mold injection molding machine and control system thereof |
| CN113847286B (en) * | 2021-09-30 | 2024-01-23 | 孙健 | Intelligent belt adjusting device |
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| CN2852100Y (en) * | 2005-12-23 | 2006-12-27 | 中国矿业大学 | Hydraulic system of high-speed wire rope and gasket friction experiment machine |
| JP2011106628A (en) * | 2009-11-19 | 2011-06-02 | Daido Steel Co Ltd | Tension adjusting device |
| CN203222299U (en) * | 2013-04-16 | 2013-10-02 | 安徽恒源煤电股份有限公司 | Hydraulic tensioning device of belt conveyor |
| CN103807238B (en) * | 2014-03-10 | 2016-02-24 | 徐工集团工程机械股份有限公司 | A kind of hydraulic control feeding system and hydraulic control feeding method |
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