CN206017294U - A kind of hydraulic system for moment of torsion laboratory bench - Google Patents
A kind of hydraulic system for moment of torsion laboratory bench Download PDFInfo
- Publication number
- CN206017294U CN206017294U CN201621022106.2U CN201621022106U CN206017294U CN 206017294 U CN206017294 U CN 206017294U CN 201621022106 U CN201621022106 U CN 201621022106U CN 206017294 U CN206017294 U CN 206017294U
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- hydraulic
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Abstract
The utility model discloses a kind of hydraulic system for moment of torsion laboratory bench.Hydraulic system includes fuel tank, the hydraulic circuit of two control hydraulic cylinders；The hydraulic circuit of two control hydraulic cylinders is connected with fuel tank.Wherein, every hydraulic circuit includes oil absorption filter, Oil pump electrical machinery, Variable plunger pump, check valve, high pressure filter, pressure switch, pressure gauge, pressure transducer, accumulator, the integrated valve group being made up of proportional pressure control valve, proportional reversing valve and hydraulic control one-way valve, oil way valve block, safeguard protection valve group, a hydraulic cylinder；Oil absorption filter is placed in fuel tank, and oil absorption filter, Variable plunger pump, check valve, high pressure filter, integrated valve group, safeguard protection valve group, hydraulic cylinder are sequentially connected in series.The hydraulic system pulling force（Thrust）The active force of hydraulic cylinder puts on the two ends of a machinery rotation arm of force, forms the moment of torsion needed for experiment, meets experiment needs.
Description
Technical field
This utility model is related to a kind of hydraulic system for moment of torsion laboratory bench.
Background technology
With hydraulic component, the abundant exploitation of functional module, hydraulic system field of industrial production application
Quite varied.Combination along with Computer Control Technology, sensing observation and control technology and hydraulic technique develops, hydraulic system also to
Intellectuality, networking, Informatization Development.Moment of torsion laboratory bench is had started to as the detection instrument of test power transmitting apparatus
Gradually received by everybody.There is presently no the hydraulic control system for finding moment of torsion laboratory bench.
Utility model content
Problem to be solved in the utility model is to provide a kind of hydraulic system for moment of torsion laboratory bench, the hydraulic pressure
System pulling force（Thrust）The active force of hydraulic cylinder puts on the two ends of a machinery rotation arm of force, forms the torsion needed for experiment
Square, meets experiment needs.Meanwhile, security performance of the present utility model is high, and can guarantee that the stability of whole hydraulic system.
A kind of hydraulic system for moment of torsion laboratory bench of this utility model, it include fuel tank, two control hydraulic cylinders
The hydraulic circuit of motion；The hydraulic circuit of two control hydraulic cylinders is connected with fuel tank.
Wherein, every hydraulic circuit includes oil absorption filter, Oil pump electrical machinery, Variable plunger pump, check valve, high-pressure filteration
Device, pressure switch, pressure gauge, pressure transducer, accumulator, by proportional pressure control valve, proportional reversing valve and hydraulic control one-way valve, oil circuit
The integrated valve group of valve block composition, safeguard protection valve group, a hydraulic cylinder；Oil absorption filter is placed in fuel tank, oil absorption filter,
Variable plunger pump, check valve, high pressure filter, integrated valve group, safeguard protection valve group, hydraulic cylinder are sequentially connected in series；Variable plunger pump
It is connected with the output shaft of Oil pump electrical machinery；Pressure switch, pressure transducer, accumulator connect with the pressure pipeline of oil way valve block respectively
Connect, pressure gauge is connected with pressure switch；The oil returning tube of two oil way valve blocks in left and right leads directly to fuel tank after being connected；One hydraulic cylinder is
Pulling force hydraulic cylinder, another hydraulic cylinder are thrust hydraulic cylinder.
Further, the rodless cavity oil communication of the rod chamber oil circuit of pulling force hydraulic cylinder and thrust hydraulic cylinder；Pulling force hydraulic pressure
The rodless cavity oil circuit of cylinder and the rod chamber oil communication of thrust hydraulic cylinder；The switching of two connection oil circuits is by electric control one-way valve
Control.
Further, described hydraulic control system also includes that circulating cooling system, circulating cooling system include cooling electricity
Pump group, forced air cooler, return filter；Cooling electromechanical pump group is connected with forced air cooler, return filter, and cooling electromechanical pump
Group, return filter are connected with fuel tank.
Further, fuel tank is provided with liquid level liquid thermometer, air filter.
Further, hydraulic control system also includes signal detection control and feedback system, and it mainly includes PLC controls system
System, the outlet pressure monitoring of proportional pressure control valve and control, oil circuit monitoring and control, the pulling force of proportional reversing valve（Thrust）Hydraulic cylinder
Oil pressure, movement travel monitoring and control, the monitoring and control of system hydraulic fluid temperature.
This utility model is used for the hydraulic system of moment of torsion laboratory bench, the hydraulic system pulling force（Thrust）Hydraulic cylinder
Active force puts on the two ends of a machinery rotation arm of force, forms the moment of torsion needed for experiment, meets experiment needs.Meanwhile, this reality
High with new security performance, and can guarantee that the stability of whole hydraulic system.
Description of the drawings
Fig. 1 is the principle schematic of the hydraulic system that this utility model is used for moment of torsion laboratory bench；
Fig. 2 is the schematic diagram of the moment of torsion laboratory bench using this utility model hydraulic system.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Embodiment 1
A kind of hydraulic system for moment of torsion laboratory bench of this utility model, it include 1, two control hydraulic cylinders of fuel tank
The hydraulic circuit of motion；The hydraulic circuit of two control hydraulic cylinders is connected with fuel tank 1.
Embodiment 2
Every hydraulic circuit includes oil absorption filter 4, Oil pump electrical machinery 7, Variable plunger pump 8, check valve 10, high-pressure filteration
Device 11, pressure switch 12, pressure gauge 13, pressure transducer 14, accumulator 16, by proportional pressure control valve 9, proportional reversing valve 15 and liquid
Control check valve 17, the integrated valve group of the composition of oil way valve block 23,18, hydraulic cylinder of safeguard protection valve group；Oil absorption filter 4 is placed
In fuel tank 1, oil absorption filter 4, Variable plunger pump 8, check valve 10, high pressure filter 11, integrated valve group, safeguard protection valve group
18th, hydraulic cylinder is sequentially connected in series；Variable plunger pump 8 is connected with the output shaft of Oil pump electrical machinery 7；Pressure switch 12, pressure transducer 14,
Accumulator 16 connects with the pressure pipeline of oil way valve block 23 respectively, and pressure gauge 13 is connected with pressure switch 12；Two oil circuits in left and right
The oil returning tube of valve block 23 leads directly to fuel tank 1 after being connected；One hydraulic cylinder is pulling force hydraulic cylinder 20, another hydraulic cylinder is thrust liquid
Cylinder pressure 21.
Embodiment 3
The rod chamber oil circuit of pulling force hydraulic cylinder 20 and the rodless cavity oil communication of thrust hydraulic cylinder 21；Pulling force hydraulic cylinder 20
Rodless cavity oil circuit and the rod chamber oil communication of thrust hydraulic cylinder 21；The switching of two connection oil circuits is by electric control one-way valve 19
Control.
Embodiment 4
Described hydraulic system also includes circulating cooling system, and circulating cooling system includes cooling electromechanical pump group 22, air-cooled
But device 5, return filter 6；Cooling electromechanical pump group 22 is connected with forced air cooler 5, return filter 6, and cooling electromechanical pump group 22,
Return filter 6 is connected with fuel tank 1.Return filter 6 makes oil return become more clean, so as to extend whole hydraulic system
Service life.
Embodiment 5
Fuel tank 1 is provided with liquid level liquid thermometer 2, air filter 3.Liquid level liquid thermometer 2 plays the temperature of real-time monitoring hydraulic oil
The effect of degree, when oil temperature rises to the numerical value of PLC control system setting, cooling electromechanical pump group 22 voluntarily starts, forced air cooler 5
Operating, blows away heat, cools down hydraulic oil, so as to extend the service life of part in hydraulic system.Air filter 3 plays removal
The effect of impurity.
Embodiment 6
Hydraulic system also includes signal detection control and feedback system, and it mainly includes PLC control system, proportional pressure control valve
9 outlet pressure monitoring and control, oil circuit monitoring and control, the pulling force of proportional reversing valve 15（Thrust）The oil of hydraulic cylinder 20,21
Pressure, movement travel monitoring and control, the monitoring and control of system hydraulic fluid temperature.
Embodiment 7
The oil pressure area equation of 20 rodless cavity of the oil pressure area of 21 rod chamber of thrust hydraulic cylinder and pulling force hydraulic cylinder, thrust liquid
The oil pressure area of 20 rod chamber of the oil pressure area of 21 rodless cavity of cylinder pressure and pulling force hydraulic cylinder is also equal（The cylinder barrel of thrust hydraulic cylinder 21
Internal diameter, the internal diameter of cylinder of diameter of piston rod and pulling force hydraulic cylinder 20, diameter of piston rod are different from）.
Thrust hydraulic cylinder 21 and pulling force hydraulic cylinder 20 at the same pressure, export equal thrust and pulling force, machinery rotation
The reinforcing of arm of force two ends is average（As shown in Figure 2）；The electric control one-way valve 19 that two hydraulic cylinders are communicated on oil circuit is in normally open.
Before moment of torsion experiment starts, according to required torque value is tested, the working pressure of hydraulic system is calculated, according to this
Pressure value sets the safeguard protection pressure value of safeguard protection valve group 19, the outlet pressure of proportional pressure control valve 9 in PLC system respectively
Early warning value and brake hard value；Wherein, PLC control system sets to the signal of the proportional pressure control valve 9 on two hydraulic cylinder oil circuits is
Identical, sets the commutation action signal simultaneously to proportional reversing valve 15；When testing required torque and being larger, while starting two
The Oil pump electrical machinery 7 of hydraulic circuit, the proportional reversing valve 15 in two integrated valve groups are switched to same station, are stepped up ratio and overflow
The outlet pressure of stream valve 9 is to needed for testing；In test, as electric control one-way valve 19 is normally open so that any bar oil
The pressure oil on road, drainback passage can be utilized by another oil circuit, and any part on certain oil circuit goes wrong all without shadow
The normal work of hydraulic cylinder is rung, two hydraulic circuits are both working oil path and mutual standby oil circuit, and because of a hydraulic pressure
The rod chamber of cylinder and the oil pressure area equation of the rodless cavity of another hydraulic cylinder, PLC system control the outlet pressure of proportional pressure control valve 9
Power is also equal, so two hydraulic cylinders all can distinguish applying power active force equal, in opposite direction at the two ends of the machinery rotation arm of force,
Ensure that the steady safety of experiment；When experiment required torque is less, when only needing hydraulic cylinder works, closing two is automatically controlled unidirectional
Valve 19, starts the Oil pump electrical machinery 7 of any one hydraulic circuit, and the proportional reversing valve 15 in integrated valve group is switched to a certain station, by
The outlet pressure of step increased proportion overflow valve 9 is to needed for testing；Under experimental statuss, system security protection relies on safeguard protection
Valve group 18, the effect of accumulator 16, the security settings of PLC control system comparative example overflow valve 9 are realizing the guarantor to experimental system
Shield.
This utility model is used for the advantage of the hydraulic system of moment of torsion laboratory bench：
First, can be that the rotating force arm that moment of torsion is tested applies large range of moment of torsion：（One）Torque value needed for experiment
When larger, while enabling the oil circuit of two hydraulic cylinders, two hydraulic cylinders act on downward respectively at the two ends of the machinery rotation arm of force
Pulling force and thrust upwards, by changing the outlet pressure of proportional pressure control valve 9 in oil circuit, adjust cylinder force, reach reality
High pulling torque needed for testing；（Two）, when experiment needed for torque value less when, only enable the oil of single pulling force or thrust hydraulic cylinder
Road, single hydraulic cylinder apply active force in one end of the machinery rotation arm of force, by changing the outlet pressure of proportional pressure control valve 9 in oil circuit
Power, adjusts cylinder force, reaches the little moment of torsion needed for experiment.
2nd, the safety precautions of hydraulic system is complete：（One）Safeguard protection valve group, root is provided with the oil circuit of hydraulic cylinder
The safeguard protection pressure value that set valve group is factually tested.When causing pressure rise to this pressure value due to unexpected situation, safeguard protection
Valve group pressure release at once；During the instantaneous loss of pressure of hydraulic cylinder works chamber, valve group can be supplemented from fuel tank oil suction；Play stabilize hydraulic pressure fluctuation,
Protection hydraulic system and the effect of plant equipment；（Two）
The rod chamber oil circuit of pulling force hydraulic cylinder and the rodless cavity oil communication of thrust hydraulic cylinder；The rodless cavity of pulling force hydraulic cylinder
Oil circuit and the rod chamber oil communication of thrust hydraulic cylinder；The switching of two connection oil circuits is by electric control one-way valve control；Automatically controlled list
In the case of opening to valve, if pulling force hydraulic cylinder oil circuit or the proportional pressure control valve on thrust hydraulic cylinder oil circuit, ratio commutation
There is the fortuitous event such as stuck and can not work in valve, hydraulic control one-way valve, and can utilize the hydraulic unit of an other hydraulic cylinder oil circuit
As usual run；One safeguard protection valve group 18 can just protect the operation of two hydraulic cylinders, also play the role of the using and the reserved, so as to pole
The earth improves the safety of system operation；Pressure value according to needed for the experiment of each moment of torsion, can distinguish in PLC control system
The outlet pressure early warning value of Set scale overflow valve, brake hard value, timely early warning and tight when reaching experiment something unexpected happened
The effect of jerk machine；When two hydraulic cylinders are worked, by PLC system control, the commutation action of monitoring proportional reversing valve and work simultaneously
Position, it is ensured that two hydraulic cylinders apply a thrust and a downward pulling force upwards respectively at the two ends of the machinery rotation arm of force,
Two hydraulic cylinders are avoided the occurrence of while applying active force up or down, the situation of breaking test equipment；In hydraulic control system
Crucial hydraulic unit proportional pressure control valve and proportional reversing valve between be provided with accumulator, its Main Function is to absorb and buffer commutation
The hydraulic shock of valve events；Play a part of emergency power source during the little moment of torsion experiment single cylinder circuit of lower startup.
3rd, hydraulic pressure system pressure system intelligent, high degree of automation：（One）Hydraulic system is realized remote by PLC control system
Journey commands the action of each part, monitors ruuning situation, records experimental correlation data；（Two）PLC control system is according to hydraulic oil temperature
Degree determines the operation and stopping of circulating cooling system；（Three）, PLC control system according to experiment needs, adjust proportional pressure control valve
Outlet pressure, there is provided the moment of torsion of different sizes needed for various experiments.
Claims (7)
1. a kind of hydraulic system for moment of torsion laboratory bench, it is characterised in that：It includes fuel tank（1）, two control hydraulic pressure
The hydraulic circuit of cylinder motion；The hydraulic circuits of two control hydraulic cylinders are and fuel tank（1）It is connected.
2. hydraulic system according to claim 1, it is characterised in that：Every hydraulic circuit includes oil absorption filter（4）、
Oil pump electrical machinery（7）, Variable plunger pump（8）, check valve（10）, high pressure filter（11）, pressure switch（12）, pressure gauge（13）、
Pressure transducer（14）, accumulator（16）, by proportional pressure control valve（9）, proportional reversing valve（15）And hydraulic control one-way valve（17）, oil circuit
Valve block（23）The integrated valve group of composition, safeguard protection valve group（18）, a hydraulic cylinder；Oil absorption filter（4）It is placed on fuel tank（1）
In, oil absorption filter（4）, Variable plunger pump（8）, check valve（10）, high pressure filter（11）, integrated valve group, safety protective valve
Group（18）, hydraulic cylinder is sequentially connected in series；Variable plunger pump（8）With Oil pump electrical machinery（7）Output shaft connection；Pressure switch（12）, pressure
Force transducer（14）, accumulator（16）Respectively and oil way valve block（23）Pressure pipeline connection, pressure gauge（13）With pressure switch
（12）Series connection；Two oil way valve blocks in left and right（23）Oil returning tube be connected after lead directly to fuel tank（1）；One hydraulic cylinder is pulling force hydraulic pressure
Cylinder（20）, another hydraulic cylinder be thrust hydraulic cylinder（21）.
3. hydraulic system according to claim 2, it is characterised in that：Pulling force hydraulic cylinder（20）Rod chamber oil circuit and thrust
Hydraulic cylinder（21）Rodless cavity oil communication；Pulling force hydraulic cylinder（20）Rodless cavity oil circuit and thrust hydraulic cylinder（21）Rod chamber
Oil communication；The switching of two connection oil circuits is by electric control one-way valve（19）Control.
4. hydraulic system according to claim 2, it is characterised in that：Described hydraulic control system also includes circulating cooling
System, circulating cooling system include cooling electromechanical pump group（22）, forced air cooler（5）, return filter（6）；Cooling electromechanical pump group
（22）With forced air cooler（5）, return filter（6）Series connection, and cooling electromechanical pump group（22）, return filter（6）And fuel tank
（1）It is connected.
5. hydraulic system according to claim 1, it is characterised in that：Fuel tank（1）It is provided with liquid level liquid thermometer（2）, air
Cleaner（3）.
6. the hydraulic system according to claim 1 or 4, it is characterised in that：Hydraulic control system also includes signal detection control
System and feedback system, it mainly includes PLC control system, proportional pressure control valve（9）Outlet pressure monitoring with control, ratio commutation
Valve（15）Oil circuit monitoring with control, pulling force（Thrust）Hydraulic cylinder（20、21）Oil pressure, movement travel monitoring and control, system
The monitoring and control of hydraulic fluid temperature.
7. the hydraulic system according to Claims 2 or 3, it is characterised in that：Thrust hydraulic cylinder（21）The oil pressure face of rod chamber
Product and pulling force hydraulic cylinder（20）The oil pressure area equation of rodless cavity, thrust hydraulic cylinder（21）The oil pressure area and pulling force liquid of rodless cavity
Cylinder pressure（20）The oil pressure area of rod chamber is also equal（Thrust hydraulic cylinder（21）Internal diameter of cylinder, diameter of piston rod and pulling force hydraulic pressure
Cylinder（20）Internal diameter of cylinder, diameter of piston rod is different from）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022106.2U CN206017294U (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic system for moment of torsion laboratory bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022106.2U CN206017294U (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic system for moment of torsion laboratory bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017294U true CN206017294U (en) | 2017-03-15 |
Family
ID=58257960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621022106.2U Withdrawn - After Issue CN206017294U (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic system for moment of torsion laboratory bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017294U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122137A (en) * | 2016-08-31 | 2016-11-16 | 泰尔重工股份有限公司 | A kind of hydraulic system for moment of torsion laboratory bench and control method thereof |
| CN107191420A (en) * | 2017-04-05 | 2017-09-22 | 广州中洲环保科技有限公司 | A kind of hydraulic control system that plunger type sludge pump seal truth is detected with closed loop |
| CN107917123A (en) * | 2017-12-20 | 2018-04-17 | 广州市新欧机械有限公司 | A kind of hydraulic valve is tired and high pressure resistant testing stand |
| CN110630591A (en) * | 2019-07-31 | 2019-12-31 | 武汉船用机械有限责任公司 | Hydraulic system of full-rotation rudder propeller device and control method thereof |
| CN112033658A (en) * | 2020-09-03 | 2020-12-04 | 西南石油大学 | System and method for testing supporting mechanism of drilling traction robot |
-
2016
- 2016-08-31 CN CN201621022106.2U patent/CN206017294U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122137A (en) * | 2016-08-31 | 2016-11-16 | 泰尔重工股份有限公司 | A kind of hydraulic system for moment of torsion laboratory bench and control method thereof |
| CN106122137B (en) * | 2016-08-31 | 2018-03-20 | 泰尔重工股份有限公司 | A kind of hydraulic system and its control method for moment of torsion laboratory bench |
| CN107191420A (en) * | 2017-04-05 | 2017-09-22 | 广州中洲环保科技有限公司 | A kind of hydraulic control system that plunger type sludge pump seal truth is detected with closed loop |
| CN107917123A (en) * | 2017-12-20 | 2018-04-17 | 广州市新欧机械有限公司 | A kind of hydraulic valve is tired and high pressure resistant testing stand |
| CN110630591A (en) * | 2019-07-31 | 2019-12-31 | 武汉船用机械有限责任公司 | Hydraulic system of full-rotation rudder propeller device and control method thereof |
| CN112033658A (en) * | 2020-09-03 | 2020-12-04 | 西南石油大学 | System and method for testing supporting mechanism of drilling traction robot |
| CN112033658B (en) * | 2020-09-03 | 2022-05-27 | 西南石油大学 | System and method for testing supporting mechanism of drilling traction robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170315 Effective date of abandoning: 20180320 |
|
| AV01 | Patent right actively abandoned |