CN108930677A - A kind of push-bench commutation valve group - Google Patents
A kind of push-bench commutation valve group Download PDFInfo
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- CN108930677A CN108930677A CN201810935080.8A CN201810935080A CN108930677A CN 108930677 A CN108930677 A CN 108930677A CN 201810935080 A CN201810935080 A CN 201810935080A CN 108930677 A CN108930677 A CN 108930677A
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- valve
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- groups
- commutation
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- 239000003921 oil Substances 0.000 claims description 38
- 239000010720 hydraulic oil Substances 0.000 claims description 21
- 238000012937 correction Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
-
- 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
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of push-bench commutation valve groups, and can solve existing push-bench, complicated operation, and the Hydraulic Elements used are relatively conventional, cannot be suitble to the action control of various push-bench, inefficient, stability technical problem to be improved in work.Including commutation valve plate, fitting body, solenoid directional control valve, stacking type hydraulic control check valve and Superimposed relief valve, the reversal valve board bottom end other side is equipped with pressure measuring tie-in, seven groups of solenoid directional control valves are installed at the top of the commutation valve plate, the pressure measuring tie-in connects solenoid directional control valve, and stacking type hydraulic control check valve is mounted at the top of described commutation valve plate one end between solenoid directional control valve described in four groups of top, Superimposed relief valve is installed between the solenoid directional control valve of top at the top of the commutation valve plate other end.Adaptation range is extensive, convenient to use, and operation precision is high, so that push-bench stability in use is good.
Description
Technical field
The present invention relates to a kind of commutation valve groups, and in particular to a kind of push-bench commutation valve group belongs to push-bench technical field.
Background technique
Push-bench is the important equipment of culvert and pipeline construction, mainly for drainage pipeline, the south water to north, combustion gas and heat supply
Pipeline, defeated, exhaust pipe, fire protection pipeline, communication pipe, electric power, petroleum pipeline, highway crossing railway overpass and riverbed pipe
The construction work in road and culvert, and mud water balance push bench 7-4WE6 commutation valve group is the important component on push-bench, it is main
Each movement of push-bench is operated etc..Currently on the market not specifically for the commutation valve group of push-bench.Therefore it needs
A kind of commutation valve group specifically for push-bench carries out action control to push-bench.And complicated operation for existing push-bench,
The Hydraulic Elements used are relatively conventional, cannot be suitble to the action control of various push-bench, and inefficient in work, stability has
Wait improve.
Summary of the invention
The purpose of the present invention is to provide a kind of push-bench commutation valve groups, and it is more multiple to can solve existing push-bench operation
Miscellaneous, the Hydraulic Elements used are relatively conventional, cannot be suitble to the action control of various push-bench, inefficient, stability in work
Energy technical problem to be improved.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of push-bench commutates valve group, including commutation valve plate, fitting body, solenoid directional control valve, stacking type hydraulic control check valve and
Superimposed relief valve, the commutation valve plate side bottom are equipped with 16 fitting bodies, the commutation valve plate one along its length
End is equipped with two groups of plugs, and the reversal valve board bottom end other side is equipped with pressure measuring tie-in, is equipped at the top of the commutation valve plate
Seven groups of solenoid directional control valves, the pressure measuring tie-in connection commutation valve plate, and four groups of institutes at the top of described commutation valve plate one end with top
It states and is mounted on stacking type hydraulic control check valve between solenoid directional control valve, the electricity at the top of the commutation valve plate other end with top
Superimposed relief valve is installed between magnetic reversal valve.
Preferably, longitudinally disposed valve plate stabilizer blade is bolted in reversal valve plate two sides of the bottom.
Preferably, the hydraulic control system inside the commutation valve plate connecting jacking pipe machine, the hydraulic control system include
There is hydraulic oil container, described hydraulic oil container one end is equipped with liquidometer, and one end is equipped with air filter at the top of the hydraulic oil container, described
Oil absorption filter is installed inside hydraulic oil container, pipeline is connected at the top of the oil absorption filter, extends through institute at the top of pipeline
It states hydraulic oil container and is connected with high-pressure plunger pump, side is equipped with vertical machine, the high-pressure plunger in the middle part of the high-pressure plunger pump
Pump top is connected with high pressure filter by pipeline, and the high pressure filter top is connected with commutation valve plate by the pipeline,
The commutation valve plate is all connected with by other two groups of pipelines at the top of the hydraulic oil container, connection in the middle part of one of those described pipeline
High pressure filter and Superimposed relief valve.
Preferably, the reversal valve intralamellar part is equipped with Superimposed relief valve and vibration-proof pressure gauge, the superposing type overflow
Valve connects the vibration-proof pressure gauge, and the reversal valve intralamellar part further includes having seven groups of solenoid directional control valves and upper and lower two groups of oil pipes, and seven
The group solenoid directional control valve is all connected with two groups of oil pipes, oil pipe described in two groups of connection, electricity described in seven groups at the top of the high pressure filter
Magnetic reversal valve wherein has three groups to connect unloading valve, muddy water valve and by-passing valve by high-pressure hose respectively, in addition passes through respectively for four groups
The high-pressure hose connects four groups of correction oil cylinders, the oil pipe of muddy water valve bottom end connection lower part, and the other end passes through pipeline
It is directly connected to the hydraulic oil container, it is unidirectional to be mounted on stacking type hydraulic control between the solenoid directional control valve and four groups of correction oil cylinders
Valve.
A kind of application method of push-bench commutation valve group, specific steps include,
Step 1: commutation valve group is connect with the hydraulic control system inside push-bench and is respectively entangled on push-bench
Inclined oil cylinder connection controls cooperation commutation valve group by push-bench hydraulic control system and controls the operation respectively acted on push-bench；
Step 2: in work, commutation valve group can control the normal work of push-bench, commutation valve group error correct oil cylinder
It is normally shunk in work, carries out positional deviation correction.
Beneficial effects of the present invention:
1, the commutation valve group is easy to operate, and the Hydraulic Elements used are more advanced, is done using advanced magnificent moral Hydraulic Elements
The motion action of each section on push-bench can be effectively controlled, is fitted using high-precision liquid commutation valve plate as main body for valve group
Close the action control of various push-bench.Adaptation range is extensive, convenient to use, and operation precision is high, so that push-bench is using
Middle stability is good.
2, the commutation valve group is a commutation valve group for push-bench, and various action controls, top can be carried out to push-bench
In pipe machine use more efficiently, and different types of push-bench is adapted to.Push-bench respectively act running when oil stream will not be reversed
Flowing, facilitates the pressure regulation and pressure limiting of push-bench at work, the different working environment of push pipe functional adaptation.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure of the present invention.
Fig. 2 is main view of the present invention.
Fig. 3 is left view of the present invention.
Fig. 4 is top view of the present invention.
Fig. 5 is hydraulic control system schematic diagram of the present invention.
1, commutate valve plate；2, fitting body；3, plug；4, pressure measuring tie-in；5, solenoid directional control valve；6, stacking type hydraulic control is unidirectional
Valve；7, Superimposed relief valve；8, valve plate stabilizer blade；9, hydraulic oil container；10, liquidometer；11, air filter；12, oil absorption filter；13,
Vertical machine；14, high-pressure plunger pump；15, vibration-proof pressure gauge；16, high pressure filter；17, high-pressure hose.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
Please refer to shown in Fig. 1-5, a kind of push-bench commutates valve group, including commutation valve plate 1, fitting body 2, solenoid directional control valve 5,
Stacking type hydraulic control check valve 6 and Superimposed relief valve 7, commutation 1 one side bottom of valve plate are equipped with 16 connectors along its length
Body 2, commutation valve plate 1 are the main bodys of entire commutation valve group, and for placing each element, fitting body 2 is used for the connection of various pipelines, changes
Two groups of plugs 3 are installed to 1 one end of valve plate, plug 3 blocks commutation valve plate 1 at work, commutation 1 inside oil leak of valve plate is prevented,
The commutation 1 bottom end other side of valve plate is equipped with pressure measuring tie-in 4, and pressure measuring tie-in 4 is used to commutate the pressure test in valve group work, can and
When detect pressure size, and then the timely operating pressure of adjustable change valve group avoids component wear, and commutation valve plate 1 pushes up
Portion is equipped with seven groups of solenoid directional control valves 5, and the connection commutation valve plate 1 of pressure measuring tie-in 4, solenoid directional control valve 5 on push-bench for respectively acting
The control in direction, the stretching operation that four groups of correction oil cylinders can be made stable, and four groups of electromagnetism at the top of 1 one end of valve plate of commutating with top
It is mounted on stacking type hydraulic control check valve 6 between reversal valve 5, stacking type hydraulic control check valve 6 can be such that push-bench respectively acts to operate
When inside oil stream will not reverse flow, be equipped with and be superimposed between the solenoid directional control valve 5 of top at the top of commutation 1 other end of valve plate
Formula overflow valve 7, Superimposed relief valve 7 play the role of pressure regulation and pressure limiting to hydraulic system inside push-bench, keep pressure
Stablize, element is hardly damaged.
As a kind of technical optimization scheme of the invention, longitudinal set has been bolted in 1 two sides of the bottom of valve plate of commutating
The valve plate stabilizer blade 8 set, commutation 1 bottom of valve plate are conveniently fixed on inside push-bench by valve plate stabilizer blade 8.
As a kind of technical optimization scheme of the invention, hydraulic control system inside the 1 connecting jacking pipe machine of valve plate that commutates, liquid
Pressure control system includes hydraulic oil container 9, and 9 one end of hydraulic oil container is equipped with liquidometer 10, and 9 top one end of hydraulic oil container is equipped with
Air filter 11 is equipped with oil absorption filter 12 inside hydraulic oil container 9, is connected with pipeline at the top of oil absorption filter 12, at the top of pipeline
It extends through hydraulic oil container 9 and is connected with high-pressure plunger pump 14,14 middle part side of high-pressure plunger pump is equipped with vertical machine 13, high pressure
High pressure filter 16 is connected with by pipeline at the top of plunger pump 14, commutation valve plate is connected with by pipeline at the top of high pressure filter 16
1, commutation valve plate 1 is all connected with by other two groups of pipelines at the top of hydraulic oil container 9, connects high-pressure filteration in the middle part of one of pipeline
Device 16 and Superimposed relief valve 7.
As a kind of technical optimization scheme of the invention, Superimposed relief valve 7 and resistance to jolt-squeeze are installed inside the valve plate 1 that commutates
Power table 15, Superimposed relief valve 7 connect vibration-proof pressure gauge 15, further include having seven groups of solenoid directional control valves 5 and upper inside the valve plate 1 that commutates
Lower two groups of oil pipes, seven groups of solenoid directional control valves 5 are all connected with two groups of oil pipes, and two groups of oil pipes, seven groups of electricity are connected at the top of high pressure filter 16
Magnetic reversal valve 5 wherein has three groups to pass through the connection of high-pressure hose 17 unloading valve, muddy water valve and by-passing valve respectively, in addition leads to respectively for four groups
It crosses high-pressure hose 17 and connects four groups of correction oil cylinders, muddy water valve bottom end connects the oil pipe of lower part, and the other end is direct by pipeline
Hydraulic oil container 9 is connected, is mounted on stacking type hydraulic control check valve 6 between solenoid directional control valve 5 and four groups of correction oil cylinders.
A kind of application method of push-bench commutation valve group, specific steps include,
Step 1: commutation valve group is connect with the hydraulic control system inside push-bench and oily with respectively rectifying a deviation on push-bench
Cylinder connection controls cooperation commutation valve group by push-bench hydraulic control system and controls the operation respectively acted on push-bench；
Step 2: in work, commutation valve group can control the normal work of push-bench, commutation valve group error correct oil cylinder
It is normally shunk in work, carries out positional deviation correction.
In the use of the present invention, commutation valve group is connect with the hydraulic control system inside push-bench, it is each on the valve plate 1 that commutates
Kind component carries out stable connection installation, and each pipeline is connect by fitting body 2 with commutation valve plate 1 in work.Plug 3 is at work
Commutation valve plate 1 is blocked, prevents commutation 1 inside oil leak of valve plate, pressure measuring tie-in 4 is for the pressure test in the valve group work that commutates, energy
It timely detects pressure size, and then the timely operating pressure of adjustable change valve group, avoids component wear, solenoid directional control valve
5 control for each direction of action on push-bench, the stretching operation that four groups of correction oil cylinders can be made stable, stacking type hydraulic control check valve
6 can make push-bench respectively act oil stream inside in running will not reverse flow, Superimposed relief valve 7 plays inside push-bench
Effect to pressure regulation and the pressure limiting of hydraulic system, keeps pressure to stablize, and element is hardly damaged.The commutation valve group is easy to operate, makes
Hydraulic Elements are more advanced, can effectively control the motion action of each section on push-bench, are suitble to the dynamic of various push-bench
It controls.The commutation valve group is a commutation valve group for push-bench, can carry out various action controls, push-bench to push-bench
In use more efficiently, and different types of push-bench is adapted to.Push-bench respectively act running when oil stream will not reverse flow,
Facilitate the pressure regulation and pressure limiting of push-bench at work, the different working environment of push pipe functional adaptation.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
- The valve group 1. a kind of push-bench commutates, it is characterised in that: including commutation valve plate (1), fitting body (2), solenoid directional control valve (5), Stacking type hydraulic control check valve (6) and Superimposed relief valve (7), (1) one side bottom of commutation valve plate are equipped with along its length 16 fitting bodies (2), described commutation valve plate (1) one end are equipped with two groups of plugs (3), and commutation valve plate (1) bottom end is another Side is equipped with pressure measuring tie-in (4), is equipped with seven groups of solenoid directional control valves (5), the pressure measuring tie-in at the top of the commutation valve plate (1) (4) connection commutation valve plate (1), and at the top of described commutation valve plate (1) one end between solenoid directional control valve (5) described in four groups of top It is mounted on stacking type hydraulic control check valve (6), the solenoid directional control valve at the top of described commutation valve plate (1) other end with top (5) Superimposed relief valve (7) are installed between.
- The valve group 2. a kind of push-bench according to claim 1 commutates, it is characterised in that: commutation valve plate (1) bottom two Longitudinally disposed valve plate stabilizer blade (8) is bolted in side.
- The valve group 3. a kind of push-bench according to claim 1 commutates, it is characterised in that: commutation valve plate (1) connection top Hydraulic control system inside pipe machine, the hydraulic control system include hydraulic oil container (9), described hydraulic oil container (9) one end It is equipped with liquidometer (10), one end is equipped with air filter (11) at the top of the hydraulic oil container (9), and the hydraulic oil container (9) is internal It is equipped with oil absorption filter (12), pipeline is connected at the top of the oil absorption filter (12), extends through the liquid at the top of pipeline Pressure oil case (9) is connected with high-pressure plunger pump (14), and side is equipped with vertical machine (13), institute in the middle part of the high-pressure plunger pump (14) It states and is connected with high pressure filter (16) at the top of high-pressure plunger pump (14) by pipeline, pass through institute at the top of the high pressure filter (16) It states pipeline and is connected with commutation valve plate (1), hydraulic oil container (9) top is all connected with the commutation valve plate by other two groups of pipelines (1), connection high pressure filter (16) and Superimposed relief valve (7) in the middle part of one of those described pipeline.
- 4. a kind of push-bench four-point deviation-rectifying system according to claim 3, it is characterised in that: the commutation valve plate (1) Inside is equipped with Superimposed relief valve (7) and vibration-proof pressure gauge (15), and the Superimposed relief valve (7) connects the shatter-proof pressure Table (15), it further includes having seven groups of solenoid directional control valves (5) and upper and lower two groups of oil pipes, electricity described in seven groups that the commutation valve plate (1) is internal Magnetic reversal valve (5) is all connected with two groups of oil pipes, oil pipe described in two groups of connection, electromagnetism described in seven groups at the top of the high pressure filter (16) Reversal valve (5) wherein has three groups to pass through high-pressure hose (17) connection unloading valve, muddy water valve and by-passing valve respectively, in addition four groups of difference Four groups of correction oil cylinders, the oil pipe of muddy water valve bottom end connection lower part, the other end are connected by the high-pressure hose (17) It is directly connected to the hydraulic oil container (9), is mounted between the solenoid directional control valve (5) and four groups of correction oil cylinders folded by pipeline Add formula hydraulic control one-way valve (6).
- 5. a kind of application method of push-bench commutation valve group, which is characterized in that specific steps include,Step 1: commutation valve group is connect with the hydraulic control system inside push-bench and oily with respectively rectifying a deviation on push-bench Cylinder connection controls cooperation commutation valve group by push-bench hydraulic control system and controls the operation respectively acted on push-bench；Step 2: in work, commutation valve group can control the normal work of push-bench, and commutation valve group error correct oil cylinder is working In normally shrink, carry out positional deviation correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935080.8A CN108930677A (en) | 2018-08-16 | 2018-08-16 | A kind of push-bench commutation valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935080.8A CN108930677A (en) | 2018-08-16 | 2018-08-16 | A kind of push-bench commutation valve group |
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| CN108930677A true CN108930677A (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810935080.8A Pending CN108930677A (en) | 2018-08-16 | 2018-08-16 | A kind of push-bench commutation valve group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064746A (en) * | 2019-06-11 | 2019-07-30 | 常州卡斯特铝精密铸造科技有限公司 | Gravity-assist pouring machine control system |
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| 鲁少刚: "《大口径顶管掘进机研制及其关键技术研究》", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064746A (en) * | 2019-06-11 | 2019-07-30 | 常州卡斯特铝精密铸造科技有限公司 | Gravity-assist pouring machine control system |
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Application publication date: 20181204 |