CN209195854U - A kind of hydraulic valve limiting device - Google Patents
A kind of hydraulic valve limiting device Download PDFInfo
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- CN209195854U CN209195854U CN201822024031.7U CN201822024031U CN209195854U CN 209195854 U CN209195854 U CN 209195854U CN 201822024031 U CN201822024031 U CN 201822024031U CN 209195854 U CN209195854 U CN 209195854U
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- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 4
- 238000001514 detection method Methods 0.000 description 17
- 230000009471 action Effects 0.000 description 6
- 230000003749 cleanliness Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The application embodiment discloses a kind of hydraulic valve limiting device, and the limiting device includes: pedestal, support base, spring, upper limit mechanism, hydraulic cylinder and guide rod；Wherein, the pedestal is set on workbench, the support base is fixed on the pedestal by spring holder, the spring is set in the spring holder, the both ends of the upper limit mechanism are arranged with the guide rod, the hydraulic cylinder is arranged in one end of the guide rod, and the other end of the guide rod is set on the pedestal.
Description
Technical Field
The application relates to the technical field of hydraulic systems, in particular to a hydraulic valve limiting device.
Background
The main constituent units and components of the hydraulic mechanism include: the device comprises a working module, an energy storage module, a control module, an adaptation module, an energy charging module and a monitoring module. The hydraulic valve in the control module has the function of opening and closing the mechanism in the hydraulic mechanism. Switching on a switching-on electromagnetic valve on a hydraulic valve at a switching-off position, switching a reversing valve in the hydraulic valve to a switching-on position, and leading the bottom of a piston rod in a working module to be switched on with high-pressure oil; and switching on an opening electromagnetic valve on the hydraulic valve at a closing position, switching a reversing valve in the hydraulic valve to an opening position, so that high-pressure oil at the bottom of a piston rod in the working module is communicated to a low-pressure oil tank through the reversing valve, and under the action of normal high pressure at the upper end of the piston rod, the piston rapidly moves downwards to open the valve and drives an auxiliary switch in the adaptive module to switch, so that an opening loop is cut off, and the next closing is prepared.
The hydraulic valve consists of a valve body, two valve sleeves arranged in the valve body, two valve cores arranged together and 3 electromagnetic valves arranged outside the valve body. The two electromagnetic valves are connected in parallel to jointly control the valve core to move towards one side, the other electromagnetic valve controls the valve core to move towards the other side, switching of high-pressure and low-pressure oil ways in the hydraulic valve and the hydraulic mechanism working module is achieved while the valve core moves, and finally the function of switching on and off of the mechanism is achieved.
In order to ensure good matching performance among the valve body, the valve core and the valve sleeve, after the hydraulic valve is subpackaged, the parts are ground, so that the parts are fully adapted to each other, and an ideal matching effect is achieved; meanwhile, each part in the part is a metal part, and various through holes and counter bores are complicated and complicated, so that impurities are inevitably omitted and not cleaned up in the early stage of split charging, and the dropped impurities pollute oil in the mechanism and block an oil pipeline or damage a sealing ring in serious cases under the impact of high oil pressure during split and close operations of the mechanism after the mechanism is assembled on the mechanism. Therefore, the hydraulic valve break-in detection in the hydraulic machine is very important.
SUMMERY OF THE UTILITY MODEL
The purpose of this application embodiment is to provide a hydrovalve stop device, makes things convenient for the hydrovalve running-in the hydraulic pressure mechanism to detect.
In order to achieve the above object, an embodiment of the present application provides a hydraulic valve limiting device, the limiting device includes: the device comprises a base, a supporting seat, a spring, an upper limiting mechanism, a hydraulic cylinder and a guide rod; wherein,
the base sets up on the workstation, the supporting seat is fixed in through spring locating pin on the base, the spring set up in the spring locating pin, it is equipped with to go up stop gear's both ends cover the guide bar, the one end setting of guide bar the pneumatic cylinder, the other end of guide bar set up in on the base.
Preferably, the base is fixed to the workbench through a limiting screw, the base and the workbench are both provided with counter bores, a high-pressure oil pipe penetrates through the counter bores of the workbench, the end of the high-pressure oil pipe is connected with a connecting pipe assembly, and the connecting pipe assembly is arranged in the counter bores of the base.
Preferably, the upper limiting mechanism is an inverted concave cover plate fixed on a flange plate, the flange plate is provided with the guide rod through a guide shaft sleeve, and the flange plate is connected with the hydraulic cylinder through a connecting block.
Preferably, the connecting pipe assembly is a pipe joint with pipe threads inside and a sealing ring outside; one end of the assembling sealing ring is connected with an oil hole of the control valve assembly, and one end with threads inside is connected with the end head of the high-pressure oil pipe.
Therefore, compared with the prior art, the technical scheme has the advantages of high integration level, accurate positioning precision and convenient use; and this stop device carries out guiding orientation to the control valve through the shrink and the tension of spring in the spring locating pin, guarantees that high pressure fuel pipe under non-exogenic action, automatic accurate butt joint with control valve subassembly and break away from, saves operator's labour cost, promotes the life of connecting tube subassembly, guarantees the finish of control valve subassembly oilhole. The upper limiting mechanism is driven by the hydraulic cylinder to apply constant pressure to the control valve assembly from top to bottom, and the stability of the control valve assembly under the oil pressure impact of 60MPa is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a hydraulic valve break-in detection system as disclosed herein;
FIG. 2 is a top view of a hydraulic valve break-in detection system as disclosed herein;
FIG. 3 is a schematic structural view of a limiting device in the hydraulic valve running-in detection system;
FIG. 4 is a cutaway view of the oil pan.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application shall fall within the scope of protection of the present application.
In the implementation of conventional technology, the quality of the hydraulic valve always depends on an assembler to manually clean, wipe and polish all parts in the part for a long time before assembly, so that the foreign matters hidden in deep holes of the parts are prevented from damaging sealing links among the parts under later-stage oil impact acting force, the hydraulic valve and even the internal leakage of a hydraulic mechanism are influenced, and finally the reliability of the mechanism is influenced. Meanwhile, after the quality of the hydraulic valve is ensured by subpackaging, the running-in and flushing tests of 500 times per machine still need to be finished after the hydraulic valve is assembled and loaded on a machine core of the hydraulic mechanism. The reliability of the opening and closing action of each part in the hydraulic valve is ensured, and the reliability of the hydraulic valve is fully ensured. However, the operation difficulty of the process mode is high, the assembly efficiency is low, the quality of the hydraulic control valve is difficult to fully ensure, and the reliability and the field-outgoing efficiency of the hydraulic disc spring are also influenced.
Fig. 1 is a front view of a hydraulic valve break-in detection system disclosed in the present specification. Fig. 2 is a top view of a hydraulic valve break-in detection system disclosed herein. The hydraulic valve running-in detection system comprises: the device comprises a workbench 2, a hydraulic unit 3, a limiting device 4, an electric control terminal 5 and a detector 6; wherein,
the workbench 2, the hydraulic unit 3 and the limiting device 4 are all arranged in the equipment case 1; the limiting device is arranged on the workbench 2, and the hydraulic unit 3 is connected with the limiting device 4 through a high-pressure oil pipe 7; the electric control terminal 5 and the detector 6 are arranged on one side of the equipment case 1, and the detector 6 is connected with the electric control terminal 5 through a cable.
In this embodiment, the control unit, the electrical unit and the information system unit of the hydraulic valve running-in detection system are all arranged in the electronic control terminal 5. In practice, the electric control terminal mainly comprises an electric control cabinet, an electric element, an operation button, an operation panel and a circuit. Be provided with PLC controller, transformer, relay, phase sequence protector, contactor, motor protector in the automatically controlled cabinet, when hydraulic valve running-in detecting system ran in, washed the hydraulic valve, during leakproofness and cleanliness factor testing process, the corresponding parameter was gathered in real time to the device that sets up in the automatically controlled cabinet, through the operation of PLC controller to show through the host computer in real time.
In addition, the hydraulic valve running-in detection system is also provided with a PLC touch screen and a safety warning lamp 10, and the hydraulic valve running-in detection system is monitored and controlled in real time. The safety warning lamp 10 is arranged on the equipment case 1, the equipment case 1 is provided with an operation door 8, a sensor 9 is arranged on the operation door 8, and the sensor 9 is connected with the safety warning lamp 10. The PLC touch screen is internally provided with an information system unit and an operation unit, and is also integrated with a data interface information unit interacting with the MES, data collected in real time through the electric control terminal during running-in detection are collected through the operation unit, and finally, the collected data are wirelessly transmitted to the MES system through a data interface for filing.
In this embodiment, the position limiting device 4 includes: the first limiting device 41 and the second limiting device 42 are arranged on the workbench 2.
When the grinding is carried out, after the bar code of the control valve component is manually scanned, the hydraulic valve is conveyed into the first limiting device 41 on the workbench of the grinding detection system, the operation door of the equipment case 1 is closed, the operation is started, the limiting device carries out accurate limiting on the hydraulic valve, and the system automatically enters an automatic grinding state.
The operation parameter of the real-time collection system operation of automatically controlled terminal, after satisfying system running-in parameter requirement, this system auto-power-off stops, 41 pressure release of first stop device, the pneumatic cylinder valve of operating door is automatic to be opened, the operating door is opened to the manual work, the control valve subassembly of taking off, carry to second stop device 42 (the same with above-mentioned accuse hydraulic stop device) on running-in detecting system's the workstation behind the clearance fluid, close operating door and start-up system, second stop device 42 carries out accurate spacing to the hydrovalve, the automatic hydrovalve leakproofness detection state that gets into of system, detect the cleanliness factor of system fluid through the detector simultaneously, thereby obtain the cleanliness factor numerical value of hydrovalve.
Fig. 3 is a schematic structural diagram of a limiting device in the hydraulic valve running-in detection system. The method comprises the following steps: the device comprises a base 1 ', a supporting seat 3', a spring 4 ', an upper limiting mechanism 5', a hydraulic cylinder 6 'and a guide rod 7'; wherein,
the base 1 'is arranged on the workbench 2, the supporting seat 3' is fixed on the base 1 'through a spring positioning pin 8', the spring 4 'is arranged in the spring positioning pin 8', two ends of the upper limiting mechanism 5 'are sleeved on the guide rod 7', one end of the guide rod 7 'is provided with the hydraulic cylinder 6', and the other end of the guide rod 7 'is arranged on the base 1'.
In this embodiment, the base 1 ' is fixed on the workbench 2 through a limit screw 2 ', the base 1 ' and the workbench 2 ' are both provided with counter bores, the high-pressure oil pipe 7 penetrates through the counter bore of the workbench 2, the end of the high-pressure oil pipe 7 is connected with the connecting pipe assembly 9 ', and the connecting pipe assembly 9 ' is arranged in the counter bore of the base 1 '. In practice, the connecting pipe assembly is a pipe joint with pipe threads inside and a sealing ring outside; one end of the assembling sealing ring is connected with an oil hole of the hydraulic valve, and the end with the inner thread is connected with the end head of the high-pressure oil pipe.
In this embodiment, the upper limiting mechanism 5 ' is an inverted concave cover plate 11 ' fixed on a flange plate 10 ', the flange plate 10 ' is provided with the guide rod 7 ' through a guide shaft sleeve 12 ', and the flange plate 10 ' is connected with the hydraulic cylinder 6 ' through a connecting block 13 '.
In this embodiment, the hydraulic valve running-in detection system further includes: an oil pan 11. The oil containing disc 11 is arranged on the workbench 2, and the base 1' is arranged in the oil containing disc 11. As shown in fig. 4, a cut-away view of the oil pan is shown. The oil containing disc 11 is a thin-wall rectangular part with four sides bent by 90 degrees and a reticular isolation plate a clamped inside, and the bottom of the oil containing disc is provided with an oil drain hole b, an oil pipeline through hole c and a positioning hole d. The oil containing disc is tightly attached to the supporting seat and is arranged on the middle working table surface of the frame through the positioning hole, and the oil liquid flowing out of the quick-change connector is collected and returns to the oil storage tank through the oil drain hole.
The hydraulic valve is characterized in that valve body parts in the hydraulic valve are used as an assembly basis, the assembled hydraulic valve is conveyed to a limiting device on the surface of a workbench 2 of a running-in detection system manually, a high-pressure oil pipe connected with a base is required to be connected into an oil hole corresponding to the valve body of the hydraulic valve when the hydraulic valve is placed, an operation door is closed, an operation system is started, the hydraulic cylinder drives an upper limiting mechanism to apply certain pressure to the hydraulic valve, a supporting seat and the base through a guide rod from top to bottom, a spring on a spring positioning pin in the supporting seat shrinks due to stress, the supporting seat and the base sink, the guide pin of the spring positioning pin is exposed and inserted into a positioning hole of the hydraulic valve through a tool base for positioning, and a.
When the running-in parameters of the system are met, the device automatically stops, the hydraulic cylinder rises and is under the action of the spring elastic force of the spring locating pin, the hydraulic valve is separated from the connecting pipe assembly of the high-pressure oil pipe and is in a suspension state together with the supporting seat, the operating door is powered off, the operating door is manually opened at the moment, and the hydraulic valve is taken down.
Under the non-working state, the supporting seat is in a suspension state due to the support of the spring force, the spring positioning pin is contracted in the supporting seat, and the spring aims at providing a reaction force for the hydraulic cylinder so as to prevent the hydraulic valve from deforming under the action of the hydraulic cylinder; when the hydraulic valve is placed on the supporting seat and connected with the connecting pipe assembly of the high-pressure oil pipe, the hydraulic cylinder drives the upper limiting mechanism to apply certain pressure to the hydraulic valve and the supporting seat from top to bottom, at the moment, the spring is stressed and compressed, the supporting seat sinks, and the spring positioning pin is exposed and inserted into a positioning hole of the hydraulic valve through the supporting seat to be positioned.
The base is mainly used for the transition spring positioning pin, the high-pressure oil pipe and the high-pressure oil pipe connecting pipe assembly, the positioning accuracy of the guide positioning and the connecting pipe assembly is guaranteed, and meanwhile, the base or the hydraulic valve is prevented from being damaged by pressing by the hydraulic cylinder, and the pressure applied by part of the hydraulic cylinder is prevented from being unloaded.
According to the technical scheme, when the hydraulic valve is in running-in, the flow principle of oil liquid is utilized, the valve core inside the hydraulic valve is pushed, the hydraulic valve is opened and closed, effective running-in between parts is achieved, meanwhile, impurities generated by running-in inside the hydraulic valve and impurities which are not cleaned up in the early stage are taken out of the hydraulic valve, and the impurities are removed through an oil filter and a drain valve, so that the cleanliness of the hydraulic valve is effectively improved. And the hydraulic valve which is completely worn is transferred to a right detection area, certain oil pressure impact is continuously exerted on the hydraulic valve within set time, so that the sealing performance of each sealing link of the hydraulic valve is detected, and meanwhile, the cleanliness in the hydraulic valve is judged by detecting the cleanliness of oil liquid. And the running-in parameters are uploaded to the upper-level information management system in real time through accessing an information system, so that the quality parameters in the assembly process of the parts-components-mechanisms are collected, counted and filed, and a set of traceable quality chain of the parts-components-mechanisms is established.
For the limiting device in the technical scheme, the integration level is high, the positioning precision is accurate, and the use is convenient; and this stop device carries out guiding orientation to the hydrovalve through the shrink and the tension of spring in the spring locating pin, guarantees that high pressure fuel pipe under non-exogenic action, automatic accurate butt joint with the hydrovalve and break away from, saves operator's labour cost, promotes the life of connecting tube subassembly, guarantees the finish of hydrovalve oilhole. The hydraulic cylinder drives the upper limiting mechanism to apply constant pressure to the hydraulic valve from top to bottom, and the stability of the hydraulic valve under the oil pressure impact of 60MPa is ensured.
Although the present application has been described in terms of embodiments, those of ordinary skill in the art will recognize that there are numerous variations and permutations of the present application without departing from the spirit of the application, and it is intended that the appended claims encompass such variations and permutations without departing from the spirit of the application.
Claims (4)
1. The utility model provides a hydrovalve stop device which characterized in that, stop device includes: the device comprises a base, a supporting seat, a spring, an upper limiting mechanism, a hydraulic cylinder and a guide rod; wherein,
the base sets up on the workstation, the supporting seat is fixed in through spring locating pin on the base, the spring set up in the spring locating pin, it is equipped with to go up stop gear's both ends cover the guide bar, the one end setting of guide bar the pneumatic cylinder, the other end of guide bar set up in on the base.
2. The limiting device according to claim 1, wherein the base is fixed on the workbench through a limiting screw, the base and the workbench are both provided with counterbores, a high-pressure oil pipe passes through the counterbores of the workbench, the end of the high-pressure oil pipe is connected with a connecting pipe assembly, and the connecting pipe assembly is arranged in the counterbores of the base.
3. The spacing device of claim 1, wherein said upper spacing mechanism is an inverted concave cover plate secured to a flange plate, said flange plate being provided with said guide rods via guide bushings, said flange plate being connected to said hydraulic cylinder via connecting blocks.
4. The spacing device of claim 2 wherein said connector tube assembly is a tube fitting with a threaded inner, externally mounted sealing ring; one end of the assembling sealing ring is connected with an oil hole of the control valve assembly, and one end with threads inside is connected with the end head of the high-pressure oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822024031.7U CN209195854U (en) | 2018-12-04 | 2018-12-04 | A kind of hydraulic valve limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822024031.7U CN209195854U (en) | 2018-12-04 | 2018-12-04 | A kind of hydraulic valve limiting device |
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| CN209195854U true CN209195854U (en) | 2019-08-02 |
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| CN201822024031.7U Active CN209195854U (en) | 2018-12-04 | 2018-12-04 | A kind of hydraulic valve limiting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336149A (en) * | 2020-03-26 | 2020-06-26 | 浙江大学宁波理工学院 | Valve plate of multi-way valve |
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- 2018-12-04 CN CN201822024031.7U patent/CN209195854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336149A (en) * | 2020-03-26 | 2020-06-26 | 浙江大学宁波理工学院 | Valve plate of multi-way valve |
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