CN206111743U - Hydraulic pressure fastener and hydraulic pressure fastener's control system - Google Patents
Hydraulic pressure fastener and hydraulic pressure fastener's control system Download PDFInfo
- Publication number
- CN206111743U CN206111743U CN201621043405.4U CN201621043405U CN206111743U CN 206111743 U CN206111743 U CN 206111743U CN 201621043405 U CN201621043405 U CN 201621043405U CN 206111743 U CN206111743 U CN 206111743U
- Authority
- CN
- China
- Prior art keywords
- pressure
- hydraulic
- valve
- solenoid directional
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000017105 transposition Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 20
- 230000007812 deficiency Effects 0.000 claims description 10
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000007306 turnover Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 33
- 239000002828 fuel tank Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a hydraulic pressure fastener and hydraulic pressure fastener's control system. Hydraulic pressure fastener's control system is still including magenetic exchange valve and ooff valve, the pressure sensor who gathers the inlet pressure of pneumatic cylinder who is used for the connection on the oil circuit of pneumatic cylinder, torque sensor and the controller of gathering hydraulic pressure fastener's output torque, pressure sensor, torque sensor are connected with controller signal, switching -over valve, ooff valve and controller control connection, the transposition of switching -over valve, two stations first through its is to the business turn over direction switching of oil circuit with the piston rod of control pneumatic cylinder pressurizeed output power or release return, the signal control magenetic exchange valve that the controller provided according to pressure sensor, the signal control switch valve that the controller provided according to torque sensor. Realized need not artifically relapseing the start -up operation by the automatic control to the pneumatic cylinder through control system, work efficiency is high.
Description
Technical field
The utility model belongs to mechanical device technical field, and in particular to the control of hydraulic fastener and hydraulic fastener
System processed.
Background technology
In bolt fastening, the disassembling section of some main equipments, the specification of bolt is larger, is generally pulled using hydraulic torque
Hand realizes tightening and dismantling for bolt with reference to hydraulic control system.Hydraulic torque spanner includes hydraulic cylinder, rocking arm and and rocking arm
The connected work head of transmission, hydraulic cylinder has the piston rod for driving rocking arm to rotate.Operationally, control hydraulic pump work is pressed
The control button of work, until when the input pressure of hydraulic cylinder reaches predetermined pressure, hydraulic pump drive hydraulic cylinder piston rod is completed
One impulse stroke, and the gyration of a limited angle is realized by rocking arm driving work head, then unclamp control button,
Hydraulic system release, piston rod return in the presence of back-moving spring.The multiple impulse strokes of hydraulic cylinder repeated work, until work
Till when head turns motionless at a predetermined pressure, the pretension to bolt is now completed.Each impulse stroke of hydraulic cylinder needs to press
Pressure, unclamp control button, therefore per one bolt of pretension repeated multiple times will be pressed, unclamp control button reaches just can bolt
Prefastening torque value, manually operates comparatively laborious, inefficiency.
Utility model content
The purpose of this utility model is to provide a kind of control system simple to operate, high working efficiency hydraulic fastener
System.The purpose of this utility model also resides in a kind of hydraulic fastener of offer.
For achieving the above object, the technical scheme of the control system of hydraulic fastener of the present utility model is：Hydraulic pressure is tight
It is fixedly mounted with the control system put, it is characterised in that：Including the electromagnetism for being connected on the oil circuit of the hydraulic cylinder of hydraulic fastener
Reversal valve and switch valve, the pressure sensor of the input pressure of collection hydraulic cylinder, the output torque of collection hydraulic fastener
Torque sensor and controller, the connection of the pressure sensor, torque sensor and controller signals, the solenoid directional control valve,
Switch valve is connected with controller control；The solenoid directional control valve enters outgoing direction by the transposition of its first and second station to oil circuit
To control, the piston rod of hydraulic cylinder is pressurized to export power or release return for switching；The controller is provided according to pressure sensor
Signal control solenoid directional control valve：The first station is in hydraulic cylinder input pressure deficiency setting value, in hydraulic jack oil-feed
By the first Switch of working position to the second station when pressure reaches setting value；The signal control that the controller is provided according to torque sensor
Switch valve processed：Open to hydraulic pressure oil supply cylinder in moment of torsion deficiency setting value, cut off to hydraulic pressure oil supply cylinder when moment of torsion reaches setting value.
The controller includes the relay with detection feedback unit, and relay includes pressure switch and middle relay
Device, pressure switch has the pressure acquisition module for gathering the input pressure of hydraulic cylinder, described in pressure acquisition module composition
Pressure sensor, the pressure acquisition module of pressure switch is connected with the detection feedback unit signal of pressure switch, and moment of torsion is passed
Sensor is connected with the detection feedback unit signal of auxiliary reclay, and the control of pressure switch and solenoid directional control valve be connected, centre after
Electrical equipment is connected with switch valve control.
Solenoid directional control valve has two working holes, an oil-in and an oil return openings, two work of solenoid directional control valve
Mouthful it is respectively used to be connected with the rod chamber of hydraulic cylinder, rodless cavity by oil circuit, the oil-in of solenoid directional control valve is connected with oil inlet pipe
Road, the oil-out of solenoid directional control valve is connected with return line.
For achieving the above object, the technical scheme of hydraulic fastener of the present utility model is：Hydraulic fastener, including
The control system of hydraulic torque spanner and hydraulic fastener, hydraulic torque spanner includes rocking arm and the work being connected with rocking-arm driving
Make head, hydraulic torque spanner also includes hydraulic cylinder, and hydraulic cylinder has rod chamber and rodless cavity, and hydraulic cylinder has for promoting rocking arm
The piston rod of rotation, it is characterised in that：The control system of hydraulic fastener also includes the oil circuit for being connected to hydraulic cylinder
Solenoid directional control valve and switch valve, collection hydraulic cylinder input pressure pressure sensor, collection hydraulic fastener output
The torque sensor and controller of moment of torsion, the connection of the pressure sensor, torque sensor and controller signals, the commutation
The control connection of valve, switch valve and controller；The reversal valve is cut by the transposition of its first and second station to the outgoing direction that enters of oil circuit
Change to control the pressurized output power of the piston rod of hydraulic cylinder or release return；The controller is provided according to pressure sensor
Signal controls solenoid directional control valve：The first station is in hydraulic cylinder input pressure deficiency setting value, in hydraulic jack oil pressure is entered
By the first Switch of working position to the second station when power reaches setting value；The controller is controlled according to the signal that torque sensor is provided
Switch valve：Open to hydraulic pressure oil supply cylinder in moment of torsion deficiency setting value, cut off to hydraulic pressure oil supply cylinder when moment of torsion reaches setting value.
The controller includes the relay with detection feedback unit, and relay includes pressure switch and middle relay
Device, pressure switch has the pressure acquisition module for gathering the input pressure of hydraulic cylinder, described in pressure acquisition module composition
Pressure sensor, the pressure acquisition module of pressure switch is connected with the detection feedback unit signal of pressure switch, and moment of torsion is passed
Sensor is connected with the detection feedback unit signal of auxiliary reclay, and the control of pressure switch and solenoid directional control valve be connected, centre after
Electrical equipment is connected with switch valve control.
Solenoid directional control valve has two working holes, an oil-in and an oil return openings, two work of solenoid directional control valve
Mouthful be connected by oil circuit rod chamber respectively with hydraulic cylinder, rodless cavity, the oil-in of solenoid directional control valve is connected with in-line, electric
The oil-out of magnetic reversal valve is connected with return line.
The back-moving spring resetted for piston rod is provided with the rodless cavity of hydraulic cylinder.
The beneficial effects of the utility model are：When the pressure value of pressure sensor is not reaching to setting value, at hydraulic cylinder
In the first station, to the rod chamber oil-feed of hydraulic cylinder, piston rod output power, the head that pushes the work forward is rotated, when pressure sensor
When pressure value reaches setting value, controller control solenoid directional control valve commutation, solenoid directional control valve is from the first Switch of working position to the second work
Position, the rod chamber release of hydraulic cylinder, piston rod return, hydraulic cylinder completes an impulse stroke, while the input pressure of hydraulic cylinder
Decline, controller controls magnetic valve from the second Switch of working position to the first station, start next impulse stroke, and so on, directly
When reaching setting value to the value that torque sensor is detected, controller controlling switch valve is cut off to hydraulic pressure oil supply cylinder, by control
System realizes and hydraulic cylinder is automatically controlled, without manually starting hydraulic cylinder, simple to operate, high working efficiency repeatedly.
Description of the drawings
Fig. 1 is the control principle drawing of the control system of hydraulic fastener in the utility model；
Fig. 2 is the hydraulic scheme of the control system of hydraulic fastener in the utility model；
Fig. 3 is the electrical systematic drawing of the control system of hydraulic fastener in the utility model；
Fig. 4 is the main circuit diagram of the control system of hydraulic fastener in the utility model；
Fig. 5 is the control flow chart of hydraulic fastener in the utility model.
In figure：1st, fuel tank；2nd, filter；3rd, motor；4th, hydraulic pump；5th, pressure gauge；6th, torque sensor；7th, hydraulic cylinder；
8th, pressure switch；9th, solenoid directional control valve；10th, overflow valve；11st, electromagnetic switch valve；12nd, piston rod；13rd, back-moving spring.
Specific embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of hydraulic fastener of the present utility model, as shown in Figures 1 to 5.Hydraulic fastener includes
The control system of hydraulic torque spanner and hydraulic fastener.Hydraulic torque spanner includes rocking arm and the work being connected with rocking-arm driving
Make head, also including hydraulic cylinder 7, hydraulic cylinder 7 has rod chamber and a rodless cavity, also with for promoting the rocking arm of hydraulic torque spanner
The piston rod 12 of rotation, is provided with the back-moving spring 13 resetted for piston rod 12 in rodless cavity.The control system of hydraulic fastener
System includes hydraulic system and electrical system.
The schematic diagram of hydraulic system is as shown in Figure 2.Hydraulic system includes hydraulic pump 4, hydraulic cylinder 7, fuel tank 1 and electromagnetic switch
Valve 9.Hydraulic pump 4 is electric hydraulic pump, and hydraulic pump 4 is driven by motor 3.Solenoid directional control valve 9 is two four-way electromagnetic reversing valves, electric
Magnetic reversal valve 9 has two working holes, an oil-in and an oil return openings.Two working holes of solenoid directional control valve 9 lead to respectively
Cross the rod chamber of oil circuit and hydraulic cylinder 7, rodless cavity to be connected, the oil-in and hydraulic pump 4 of solenoid directional control valve 9 pass through in-line phase
Even, filter 2 is connected between hydraulic pump 4 and fuel tank 1 on in-line.The oil-out of solenoid directional control valve 9 passes through with fuel tank 1
Return line is connected.Be connected with oil circuit between the working hole being connected with rod chamber on solenoid directional control valve 9 and rod chamber for
The pressure switch 8 being connected with the control of solenoid directional control valve 9.Solenoid directional control valve has two stations：Solenoid directional control valve is in first
During station, the rod chamber oil-feed of hydraulic cylinder, piston rod promotes rocking arm to rotate, when solenoid directional control valve is in the second station, hydraulic cylinder
Rod chamber release, piston rod resets in the presence of back-moving spring 13.Electromagnetic switch valve 11, overflow is connected with in-line
Valve 10 and pressure gauge 5.
The schematic diagram of electrical system is as shown in Figure 3：SB1 is stop botton in figure；SB2 is hydraulic pump start button；SB3 is
Electromagnetic switch valve control button；SP is hydraulic pressure relay；For torque sensor；KM1, KM2 be contactor coil and its
Contact；KM3 is auxiliary reclay coil and its contact；YV1 is electromagnetic switch valve coil and its contact；YV2 is solenoid directional control valve
Coil and its contact；U1 is control circuit voltage；U3 is torque sensor supply voltage.Pressure switch is that have detection feedback
The relay of unit, pressure switch also has the pressure acquisition module for gathering the input pressure of hydraulic cylinder, pressure acquisition
Module is connected with detection feedback unit signal, and pressure switch is connected with solenoid directional control valve control, is controlled by pressure switch 8
Solenoid directional control valve 9 obtains electric commutation and dead electricity resets.Work head is provided with the moment of torsion of the output torque of collection hydraulic fastener and passes
Sensor 6, auxiliary reclay is the relay with detection feedback unit, and torque sensor 6 feeds back with the detection of auxiliary reclay 8
Cell signal connects, and auxiliary reclay is connected with switch valve control.The coil KM3 of auxiliary reclay not it is electric when, electromagnetic switch
The coil YV1 of valve obtains electric, and electromagnetic switch valve closes oil return line, opens the loop to hydraulic pressure oil supply cylinder；The line of auxiliary reclay
Circle KM3 it is electric and normally-closed contact KM3 that make auxiliary reclay disconnects, and then make and auxiliary reclay coil KM3 series windings
The coil YV1 dead electricity of electromagnetic switch valve, electromagnetic switch valve resets, and electromagnetic switch valve opens oil return line, the pressure of fluid pressure line
It is zero, cuts off to hydraulic pressure oil supply cylinder.In the present embodiment, the detection feedback unit of pressure switch and the detection of auxiliary reclay
Feedback unit constitutes controller, controls solenoid directional control valve by pressure switch respectively, and by auxiliary reclay electromagnetism is controlled
Switch valve cut-offs.
The main circuit diagram of control system is as shown in Figure 4：M is motor in figure；KM1, KM2 are main noddle on contactor；R is fusing
Device；Circuit voltage based on u2.
The control flow chart of control system is as shown in Figure 5.When to tools for bolts ' pretension, the course of work of control system is as follows：
The first step, presses the button SB2, and contactor coil KM2 obtains electric, the contact coil normally opened contact KM2 and control loop on major loop
In contact coil normally opened contact KM2 close；Second step, electric motor starting, hydraulic pump is powered and runs；3rd step, now, hydraulic pressure
Torque spanner oil-feed pipe pressure (i.e. the input pressure of hydraulic cylinder) is zero；4th step, presses the button SB3, the line of electromagnetic switch valve
Circle YV1 obtains electric, and electromagnetic switch valve is closed, and is opened to hydraulic pressure oil supply cylinder；5th step, hydraulic oil enters the rod chamber of hydraulic cylinder, pushes away
Piston bar is moved, hydraulic torque spanner oil inlet pipe pressure rise；Whether 6th step, judge hydraulic torque spanner oil-feed pipe pressure
Reach setting value, the 7th step, when hydraulic torque spanner oil-feed pipe pressure reaches setting value, pressure switch SP is connected, and electromagnetism is changed
Obtain electric to the coil YV2 of valve and commutate, solenoid directional control valve is the second station from the first Switch of working position；8th step, hydraulic torque is pulled
Hand oil inlet pipe release, hydraulic torque spanner oil inlet pipe pressure drop；9th step；The coil YV2 of solenoid directional control valve obtains electric, and electromagnetism is changed
Reset to valve, solenoid directional control valve returns to the first station from the second station；Tenth step, judges the hydraulic coupling that torque sensor is detected
Whether square spanner output torque (i.e. the output torque of hydraulic fastener) reaches setting value, if not up to setting value, repeats
5th to the 8th step process；11st step, if moment of torsion reaches setting value, torque sensor output signal；12nd step, it is middle
Relay KM3 actions, obtaining for coil KM3 is electric, and normally-closed contact KM3 disconnects；13rd step, the coil YV1 dead electricity of electromagnetic switch valve,
Electromagnetic switch valve resets, and electromagnetic switch valve is cut off to hydraulic pressure oil supply cylinder；14th step, in-line is connected with fuel tank, hydraulic tube
The pressure on road is zero；15th step, presses the button SB1, and hydraulic pump is shut down.
Increase on the in-line of hydraulic system a pressure switch 8 and a solenoid directional control valve in the utility model
9, when the input pressure of hydraulic cylinder 7 reaches setting value P, the switch conduction of pressure switch 8, the coil of solenoid directional control valve 9 obtains electric opening
Move to, oil inlet pipe release, the return under the effect of back-moving spring 13 of piston rod 12 a, impulse stroke terminates.Meanwhile, pressure after
The switch of electrical equipment 8 disconnects because of oil inlet pipe pressure drop, the dead electricity of solenoid directional control valve 9 and the return in the presence of back-moving spring 13,
The oil-feed pipe pressure of hydraulic system is raised again, and next stroke starts again.So go round and begin again, until hydraulic torque spanner is driven
When dynamic torque reaches the torque value M set by the torque sensor 6 on driving head, the control of the output of torque sensor 6
The effect that signal passes through auxiliary reclay, opens electromagnetic switch valve 11, and in-line release, whole work process terminates.Entirely
Tightening process for a bolt need not be repeated several times press, unclamp control button realizing the pressurization and off-load of hydraulic cylinder, reduce people
The duplication of labour of work, improves operating efficiency.
The pressure of the input pressure of the hydraulic cylinder of the pressure acquisition module composition of pressure switch collection in the present embodiment
Sensor, while the detection feedback unit of the detection feedback unit of pressure switch and auxiliary reclay constitutes controller,
In other embodiment, can separately set pressure sensor on the oil-feed oil circuit of hydraulic cylinder, controller be alternatively singlechip controller or
PLC.When such as controller is singlechip controller, pressure sensor, torque sensor and singlechip controller signal
Connection, solenoid directional control valve, switch valve and singlechip controller control connection, singlechip controller is provided according to pressure sensor
Signal controls solenoid directional control valve：The first station is in hydraulic cylinder input pressure deficiency setting value, in hydraulic jack oil pressure is entered
By the first Switch of working position to the second station when power reaches setting value；The signal control that singlechip controller is provided according to torque sensor
Switch valve processed：Open to hydraulic pressure oil supply cylinder in moment of torsion deficiency setting value, cut off to hydraulic pressure oil supply cylinder when moment of torsion reaches setting value.
In the utility model in the embodiment of the control system of hydraulic fastener, the control system of hydraulic fastener
Structure is identical with the structure of the control system of the hydraulic fastener in the embodiment of hydraulic fastener in the utility model, no
Again here is repeated.
Claims (7)
1. the control system of hydraulic fastener, it is characterised in that：Including for being connected to the hydraulic cylinder of hydraulic fastener
Solenoid directional control valve and switch valve, the pressure sensor of the input pressure of collection hydraulic cylinder on oil circuit, collection hydraulic fastener
Output torque torque sensor and controller, the pressure sensor, torque sensor and controller signals connection, it is described
The control connection of solenoid directional control valve, switch valve and controller；The solenoid directional control valve is by the transposition of its first and second station to oil circuit
Enter outgoing direction switching to control the pressurized output power or release return of the piston rod of hydraulic cylinder；The controller is according to pressure
The signal control solenoid directional control valve that sensor is provided：The first station is in hydraulic cylinder input pressure deficiency setting value, in liquid
By the first Switch of working position to the second station when compressing cylinder input pressure reaches setting value；The controller is carried according to torque sensor
For Signal-controlled switch valve：Moment of torsion deficiency setting value when open to hydraulic pressure oil supply cylinder, moment of torsion reach setting value when cut off to
Hydraulic pressure oil supply cylinder.
2. the control system of hydraulic fastener according to claim 1, it is characterised in that：The controller includes having
The relay of detection feedback unit, relay includes pressure switch and auxiliary reclay, and pressure switch has for gathering
The pressure acquisition module of the input pressure of hydraulic cylinder, pressure sensor described in pressure acquisition module composition, the pressure of pressure switch
Power acquisition module is connected with the detection feedback unit signal of pressure switch, and torque sensor feeds back with the detection of auxiliary reclay
Cell signal connects, and pressure switch is connected with solenoid directional control valve control, and auxiliary reclay is connected with switch valve control.
3. the control system of hydraulic fastener according to claim 1, it is characterised in that：Solenoid directional control valve has two
Working hole, an oil-in and an oil return opening, two working holes of solenoid directional control valve are respectively used to and hydraulic cylinder by oil circuit
Rod chamber, rodless cavity be connected, the oil-in of solenoid directional control valve is connected with in-line, and the oil-out of solenoid directional control valve is connected with
Return line.
4. the control system of hydraulic fastener, including hydraulic torque spanner and hydraulic fastener, hydraulic torque spanner includes
Rocking arm and the work head being connected with rocking-arm driving, hydraulic torque spanner also includes hydraulic cylinder, and hydraulic cylinder has rod chamber and without bar
Chamber, hydraulic cylinder has the piston rod for promoting rocking arm to rotate, it is characterised in that：The control system of hydraulic fastener also includes
For the solenoid directional control valve that is connected on the oil circuit of hydraulic cylinder and switch valve, the pressure sensing of the input pressure of collection hydraulic cylinder
Device, collection hydraulic fastener output torque torque sensor and controller, the pressure sensor, torque sensor with
Controller signals connect, the control connection of the reversal valve, switch valve and controller；The reversal valve passes through its first and second station
Transposition oil circuit is entered outgoing direction switching to control the pressurized output power or release return of the piston rod of hydraulic cylinder；The control
Device processed controls solenoid directional control valve according to the signal that pressure sensor is provided：In hydraulic cylinder input pressure deficiency setting value in the
One station, when hydraulic jack input pressure reaches setting value by the first Switch of working position to the second station；The controller according to
The Signal-controlled switch valve that torque sensor is provided：Open to hydraulic pressure oil supply cylinder in moment of torsion deficiency setting value, reach in moment of torsion and set
Cut off during definite value to hydraulic pressure oil supply cylinder.
5. hydraulic fastener according to claim 4, it is characterised in that：The controller includes thering is detection feedback
The relay of unit, relay includes pressure switch and auxiliary reclay, and pressure switch has for gathering entering for hydraulic cylinder
The pressure acquisition module of oil pressure, pressure sensor described in pressure acquisition module composition, the pressure acquisition module of pressure switch
It is connected with the detection feedback unit signal of pressure switch, torque sensor connects with the detection feedback unit signal of auxiliary reclay
Connect, pressure switch is connected with solenoid directional control valve control, auxiliary reclay is connected with switch valve control.
6. hydraulic fastener according to claim 4, it is characterised in that：Solenoid directional control valve have two working holes, one
Individual oil-in and an oil return opening, two working holes of solenoid directional control valve are by oil circuit rod chamber respectively with hydraulic cylinder, without bar
Chamber is connected, and the oil-in of solenoid directional control valve is connected with in-line, and the oil-out of solenoid directional control valve is connected with return line.
7. hydraulic fastener according to claim 4, it is characterised in that：It is provided with for piston in the rodless cavity of hydraulic cylinder
The back-moving spring that bar resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043405.4U CN206111743U (en) | 2016-09-07 | 2016-09-07 | Hydraulic pressure fastener and hydraulic pressure fastener's control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043405.4U CN206111743U (en) | 2016-09-07 | 2016-09-07 | Hydraulic pressure fastener and hydraulic pressure fastener's control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111743U true CN206111743U (en) | 2017-04-19 |
Family
ID=58519490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621043405.4U Expired - Fee Related CN206111743U (en) | 2016-09-07 | 2016-09-07 | Hydraulic pressure fastener and hydraulic pressure fastener's control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111743U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
| CN107664168A (en) * | 2017-08-23 | 2018-02-06 | 北京精密机电控制设备研究所 | A kind of hydraulic pressure jacket type clutch is from holding pressure control unit |
| CN111810464A (en) * | 2020-05-22 | 2020-10-23 | 武汉船用机械有限责任公司 | Bolt tightening device |
-
2016
- 2016-09-07 CN CN201621043405.4U patent/CN206111743U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN106438592B (en) * | 2016-09-07 | 2018-11-02 | 许继集团有限公司 | A kind of control system of hydraulic fastener and hydraulic fastener |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
| CN107664168A (en) * | 2017-08-23 | 2018-02-06 | 北京精密机电控制设备研究所 | A kind of hydraulic pressure jacket type clutch is from holding pressure control unit |
| CN107664168B (en) * | 2017-08-23 | 2019-04-09 | 北京精密机电控制设备研究所 | A kind of hydraulic jacket type clutch is from holding pressure control unit |
| CN111810464A (en) * | 2020-05-22 | 2020-10-23 | 武汉船用机械有限责任公司 | Bolt tightening device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206111743U (en) | Hydraulic pressure fastener and hydraulic pressure fastener's control system | |
| CA3072526C (en) | Multipurpose multi-stage hydraulic pressurizer with variable pressurization rate | |
| CN106438592A (en) | Hydraulic tightening device and control system thereof | |
| CN107882791A (en) | Multiple cylinders press hydraulic control system and its control method | |
| CN201696724U (en) | Integrated electro-hydraulic valve driving device | |
| CN203856789U (en) | Pressure-maintaining speed-stabilizing hydraulic system of hydraulic machine | |
| CN201190642Y (en) | Pressure reaction type auto reciprocating fluid pump | |
| CN202438593U (en) | Hydraulic control system for controlling punch press punching process | |
| CN204572595U (en) | Angular turn device determined by a kind of oil hydraulic motor | |
| CN108119419A (en) | A kind of electrohydraulic servo system of new type hydraulic turbine governor | |
| CN203740415U (en) | Wireless remote controlled self-discharging power-driven hydraulic funnel | |
| CN203717500U (en) | Plate shearing synchronous hydraulic control system based on double-output-shaft motor | |
| CN207246143U (en) | A kind of refuse compaction equipment double-power hydraulic pumping plant system | |
| CN204493310U (en) | Portable hydraulic automatic reciprocating mechanism | |
| CN205937265U (en) | Digital display high -low pump riveter hydraulic pressure station | |
| CN205383122U (en) | Energy -conserving body -building washing machine drive arrangement of fluid pressure type | |
| CN204127008U (en) | A kind of two move back piston hydraulic pressure valve group and twoly move back piston hydraulic pressure device | |
| CN203696829U (en) | Double-station effective environment-friendly pneumatic clamp | |
| CN208185093U (en) | The hydraulic system of multistation punching shear production line | |
| CN209943225U (en) | Hydraulic system | |
| CN207509825U (en) | A kind of hydraulic press | |
| CN202073869U (en) | Dual-speed oil cylinder | |
| CN208686847U (en) | A kind of road roller clutch automatic controls | |
| CN202597327U (en) | Rapid oil cylinder | |
| CN209041198U (en) | A kind of bias hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20190907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |