CN102878137A - Valve block assembly of hydraulic system of comprehensive experiment platform - Google Patents
Valve block assembly of hydraulic system of comprehensive experiment platform Download PDFInfo
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- CN102878137A CN102878137A CN2012103749060A CN201210374906A CN102878137A CN 102878137 A CN102878137 A CN 102878137A CN 2012103749060 A CN2012103749060 A CN 2012103749060A CN 201210374906 A CN201210374906 A CN 201210374906A CN 102878137 A CN102878137 A CN 102878137A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 38
- 210000000664 rectum Anatomy 0.000 claims description 66
- 239000012530 fluid Substances 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 238000003786 synthesis reaction Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 60
- 238000012360 testing method Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention discloses a valve block assembly of a hydraulic system of a comprehensive experiment platform. The valve block assembly is used for achieving integrated mounting of hydraulic valves of the hydraulic system. The hydraulic system comprise a main oil supply way and a hydraulic control loop connected with the main oil supply way through an overall pressure oil way. The main supply oil way comprises a main pump oil supply way and an oil filling pump oil supply way. The hydraulic control loop comprises a mobile workbench lifting hydraulic loop, a Z-direction hydraulic cylinder control loop, an X-direction hydraulic cylinder control loop and a Y-direction hydraulic cylinder control loop. The valve block assembly comprises a support and a valve block mounted on the support. A duct is reserved in the valve block on the basis of the hydraulic system of the comprehensive experiment platform. The overall pressure oil way, a master oil return way and a master oil discharge way are arranged in the valve block. By arranging the duct in the valve block on the basis of the hydraulic system of the comprehensive experiment platform, integrated mounting of hydraulic valves of the hydraulic system is achieved, pipeline connection is reduced, and operational stability of the hydraulic system is improved.
Description
Technical field
The present invention relates to a kind of valve block assembly of synthesis experiment platform hydraulic system, this synthesis experiment platform is mainly used in tunnel, mine and underground engineering; Belong to hydraulic transmission and control technique field.
Background technique
Along with the fast development of China's economy, urban construction scale constantly enlarges, and the contradiction of urban development and land resources shortage is more and more outstanding, and in recent years, China more and more payes attention to the utilization of urban underground space, and gives to support energetically in policy.And can study under the excavation effect, the comprehensive test study platform that affects different retaining structures stability is the important technological platform of underground engineering key technology research.Under this demand, tunnel, mine and underground engineering synthesis experiment platform arise at the historic moment.This experiment porch adopts hydraulic pressure as power, in order to reduce the installing space of hydraulic system, is convenient to the care and maintenance in later stage, need to provide a kind of integrated mounting type to the employed hydrovalve of hydraulic system.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of valve block assembly of synthesis experiment platform hydraulic system is provided, realize the integrated installation of each hydrovalve of synthesis experiment platform hydraulic system, connect thereby reduce pipeline, improve the stability of hydraulic work system.
For realizing above technical purpose, the present invention will take following technological scheme:
A kind of valve block assembly of synthesis experiment platform hydraulic system, be used for realizing the integrated installation of each hydrovalve of synthesis experiment platform hydraulic system, the hydraulic system of this synthesis experiment platform comprises main supply oil circuit and the hydraulic control circuit that is connected with the main supply oil circuit by the total pressure oil circuit, the main supply oil circuit comprises that main pump supplies oil circuit for oil circuit and slippage pump, and this hydraulic control circuit comprises the shuttle table lifting oil hydraulic circuit of doing elevating movement for the loading case of control experiment porch, do the Z-direction oil hydraulic cylinder control loop that Z-direction loads for end face on the loading case of control experiment porch, the loading case that is used for the control experiment porch is done the X-direction oil hydraulic cylinder control loop that the directions X level loads and the loading case that is used for the control experiment porch is done the Y-direction oil hydraulic cylinder control loop that the Y-direction level loads; Shuttle table lifting oil hydraulic circuit comprises four parallel lifting hydraulic cylinder, a reduction valve, a throttle valve, two-position three-way electromagnetic ball valves that arrange; Z-direction oil hydraulic cylinder control loop comprises four the parallel vertical loading hydraulic cylinder of Z-direction, 3-position 4-way solenoid directional control valves that arrange; X-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop include the identical horizontal hydraulic cylinder control loop of three-decker, and every layer of horizontal hydraulic cylinder control loop includes four parallel horizontal loading hydraulic cylinder, a 3-position 4-way solenoid directional control valve and reduction valve that arrange; The valve piece that described valve block assembly comprises support and is installed on support; Described valve piece inside offers the duct take the hydraulic system of synthesis experiment platform as the basis, and valve piece inside is respectively arranged with total pressure oil circuit, total oil circuit, total draining road; The left surface of valve piece is separately installed with a reduction valve, 6 latus rectum Welded fittings and a hexagonal socket head plug, the end face of valve piece is separately installed with a 3-position 4-way solenoid directional control valve, a throttle valve and six reduction valve, the front of valve piece is separately installed with five 6 latus rectum Welded fittings, an electromagnetic relief valve, a large flow check valve and three hexagonal socket head plugs, the right flank of valve piece is installed respectively a pressure meter switch, a small flow one-way valve, 20 latus rectum Welded fittings, a hexagonal socket head plug and 8 latus rectum Welded fittings, 6 latus rectum Welded fittings are installed respectively at the back side of valve piece, two hexagonal socket head plugs, 16 10 latus rectum Welded fittings, two hexagonal socket head plugs are then installed respectively in the bottom surface of valve piece, 20 latus rectum Welded fittings; A two-position three-way electromagnetic ball valve is installed with stacked system in the reduction valve outside that is in valve piece left side, and a 3-position 4-way solenoid directional control valve is all installed with stacked system in each reduction valve outside that is in valve piece end face; Be in each parts on valve piece right side: pressure meter switch dispose for pressure gauge, the 20 latus rectum Welded fittings of measuring the total pressure oil circuit be connected with the main pump oil outlet, 8 latus rectum Welded fittings are connected with the slippage pump oil outlet; Be arranged in five 6 latus rectum Welded fittings in valve piece front, one of them is connected with the pressure tap of the six point pressure table switches that are used for measurement total pressure oil circuit pressure, and remaining four then are connected with the drain tap of six point pressure table switches; The 6 latus rectum Welded fittings that are positioned at valve piece left side are connected with the drain tap of six point pressure table switches, and the 6 latus rectum Welded fittings that are positioned at the valve piece back side then are connected with the pressure tap of the six point pressure table switches that are used for measurement shuttle table lifting oil hydraulic circuit; Be arranged in 16 10 latus rectum Welded fittings at the back side: one of them 10 latus rectum Welded fitting is connected with the lifting hydraulic cylinder hydraulic fluid port, wherein two 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of Z-direction respectively, wherein six 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port of each horizontal loading hydraulic cylinder in X-direction oil hydraulic cylinder control loop respectively, and six remaining 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port that the Y-direction oil hydraulic cylinder is controlled each horizontal loading hydraulic cylinder in loop respectively; The 20 latus rectum Welded fittings that are positioned at valve piece bottom surface are communicated with total oil circuit and total draining road of valve piece inside respectively, and this 20 latus rectum Welded fitting is connected with return oil filter by pipeline.
Described small flow one-way valve, large flow check valve, electromagnetic relief valve, two-position three-way electromagnetic ball valve, throttle valve and each three position four-way electromagnetic valve are plate valve; Each reduction valve is all Sandwich plate valve.
According to above technological scheme, can realize following beneficial effect:
1, the present invention offers the duct take the hydraulic system of synthesis experiment platform as the basis in valve piece inside, so that the valve piece can be realized the integrated installation of each hydrovalve of synthesis experiment platform hydraulic system, connects thereby reduce pipeline, improves the stability of hydraulic work system;
2, valve block assembly of the present invention is provided with pressure gauge and can measures valve piece internal main oil circuit pressure, when being convenient to dispatch from the factory this valve block assembly device is detected, also can compare with the measured working connection force value of outside six point pressure table switches, improve the degree of accuracy of data;
3, each hydrovalve of the present invention, or be plate valve, or be Sandwich plate valve, greatly saved the installing space of hydraulic system;
4, each Welded fitting of valve block assembly trailing flank of the present invention is arranged according to certain rule, the corresponding Welded fitting in each control valve of valve piece end face and its oil duct outlet port is on same vertical section, so can locate rapidly failure cause when this installs when corresponding function breaks down, be convenient to the maintenance in later stage.
Description of drawings
Fig. 1 is the hydraulic schematic diagram that the present invention is based on;
Fig. 2 is graphics of the present invention;
Fig. 3 is rear view of the present invention;
Wherein: 1 is the valve piece; 2.1 ~ 2.7 is 6 latus rectum Welded fittings; 3 is the two-position three-way electromagnetic ball valve; 4.1 ~ 4.7 is stacked compression release valve; 5 is throttle valve; 6.1 ~ 6.7 is the 3-position 4-way solenoid directional control valve; 7 is pressure gauge; 8 is pressure meter switch; 9.1 ~ 9.2 is 20 latus rectum Welded fittings; 10 is the small flow one-way valve; 11.1 ~ 11.9 is hexagonal socket head plug; 12 is 8 latus rectum Welded fittings; 13.1 ~ 13.2 is support; 14 is large flow check valve; 15 is electromagnetic relief valve; 16.1 ~ 16.15 is 10 latus rectum Welded fittings.
Embodiment
Accompanying drawing discloses the structural representation of preferred embodiment involved in the present invention without limitation; Explain technological scheme of the present invention below with reference to accompanying drawing.
Below in conjunction with accompanying drawing the present invention is described in detail.
The valve block assembly of synthesis experiment platform hydraulic system of the present invention, be used for realizing the integrated installation of each hydrovalve of synthesis experiment platform hydraulic system, the hydraulic system of this synthesis experiment platform, with reference to Fig. 1, comprise main supply oil circuit and the hydraulic control circuit that is connected with the main supply oil circuit by the total pressure oil circuit; The main supply oil circuit comprises that main pump supplies oil circuit for oil circuit and slippage pump, main pump comprises the large flow check valve that main pump is connected with the main pump oil outlet for oil circuit, slippage pump comprises slippage pump and the small flow one-way valve that is connected with the slippage pump oil outlet for oil circuit, and slippage pump is the quantitative plunger pump that is driven by threephase asynchronous; This hydraulic control circuit comprise for the loading case of control experiment porch do elevating movement shuttle table lifting oil hydraulic circuit, be used for that end face on the loading case of control experiment porch is done Z-direction oil hydraulic cylinder control loop that Z-direction loads, the X-direction oil hydraulic cylinder control loop that the directions X level loads done by the loading case that is used for the control experiment porch and the loading case that is used for the control experiment porch is done the Y-direction oil hydraulic cylinder control loop that the Y-direction level loads; Wherein:
Shuttle table lifting oil hydraulic circuit comprises four parallel lifting hydraulic cylinder, a reduction valve, a throttle valve, two-position three-way electromagnetic ball valves that arrange; The P mouth of reduction valve connects the total pressure oil circuit, and the A mouth connects the P mouth of two-position three-way electromagnetic ball valve, and the T mouth connects total draining road, and the A mouth of two-position three-way electromagnetic ball valve connects the hydraulic fluid port of four lifting hydraulic cylinders, and the T mouth connects total oil circuit through throttle valve.
Z-direction oil hydraulic cylinder control loop comprises four the parallel vertical loading hydraulic cylinder of Z-direction, 3-position 4-way solenoid directional control valves that arrange; The P mouth of 3-position 4-way solenoid directional control valve connects the total pressure oil circuit, and the A mouth branches into four the tunnel, connects respectively the A mouth of Pilot operated check valve, and its B mouth branches into four tunnel rod chamber hydraulic fluid ports that connect respectively each vertical loading hydraulic cylinder, and its T mouth connects total return tube.
X-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop include the identical horizontal hydraulic cylinder control loop of three-decker, and every layer of horizontal hydraulic cylinder control loop includes four parallel horizontal loading hydraulic cylinder, a 3-position 4-way solenoid directional control valve and reduction valve that arrange; The P mouth of reduction valve connects the total pressure oil circuit, the A mouth connects the P mouth of 3-position 4-way solenoid directional control valve, the T mouth connects total draining road, the P mouth of 3-position 4-way solenoid directional control valve connects the A mouth of reduction valve, its A mouth branches into four the tunnel, connect respectively the A mouth of Pilot operated check valve, its B mouth branches into the rod chamber hydraulic fluid port of the flat loading hydraulic cylinder of four tunnel difference water receivings, and its T mouth connects total return tube.
With reference to Fig. 2, described valve block assembly comprises valve piece 1 and the support 13.1 ~ 13.2 that is used for sutaining valve piece 1, and then the valve piece is installed on the fuel tank of hydraulic station by support 13.1 ~ 13.2; The inside of valve piece 1 has the duct according to above-mentioned synthesis experiment platform hydraulic system demand, and finish the integrated installation of each hydrovalve: 6 latus rectum Welded fittings 2.6, reduction valve 4.1 is installed in the left surface of valve piece 1, throttle valve 5,3-position 4-way solenoid directional control valve 6.1 and reduction valve 4.2 ~ 4.7 are installed in valve piece end face, two-position three-way electromagnetic ball valve 3 is installed on the stacked compression release valve 4.1 with stacked system, 3-position 4-way solenoid directional control valve 6.2 ~ 6.7 is installed on the reduction valve 4.2 ~ 4.7 with stacked system successively, pressure meter switch 8,20 latus rectum Welded fittings 9.1, small flow one-way valve 10, hexagonal socket head plug 11.1 and 8 latus rectum Welded fittings 12 are installed in the right flank of valve piece 1, pressure gauge 7 is installed on the pressure meter switch 8,6 latus rectum Welded fittings 2.1 ~ 2.5, electromagnetic relief valve 15, large flow check valve 14 and hexagonal socket head plug 11.2 ~ 11.4 are installed on the leading flank of valve piece 1,20 latus rectum Welded fittings 9.1 connect the main pump oil outlet, 8 latus rectum Welded fittings 12 connect the slippage pump oil outlet, 6 latus rectum Welded fittings 2.5 connect six point pressure table switch pressure tap, test working connection pressure, 6 latus rectum Welded fittings 2.1 ~ 2.4 and 6 latus rectum Welded fittings 2.6 connect the drain tap of six point pressure table switches.What pressure gauge 7 was measured is valve piece 1 interior working connection pressure, can compare with the working connection pressure that the test port of outside six point pressure table switches by 6 latus rectum Welded fittings, 2.5 places records, and help this valve block assembly is detected.
With reference to Fig. 3, hexagonal socket head plug 11.5 is installed in the side of valve piece 1,6 latus rectum Welded fittings 2.7, hexagonal socket head plug 11.8 ~ 11.9 and 10 latus rectum Welded fittings 16.1 ~ 16.15 are installed on valve piece 1 trailing flank, hexagonal socket head plug 11.6 ~ 11.7,20 latus rectum Welded fittings 9.2 and support 13.1 ~ 13.2 are installed on valve piece 1 lower surface, and this valve block assembly device is installed on the fuel tank of hydraulic station by support 13.1 ~ 13.2.6 latus rectum Welded fittings 2.7 connect six point pressure table switch pressure tap, test shuttle table elevating loop pressure, 10 latus rectum Welded fittings 16.1 connect the lifting hydraulic cylinder hydraulic fluid port, 10 latus rectum Welded fittings 16.2 ~ 16.3 connect rodless cavity and the rod chamber hydraulic fluid port of vertical Z-direction loading hydraulic cylinder, the flat directions X first of 10 latus rectum Welded fittings, 16.4 ~ 16.9 water receivings, two, the rodless cavity of three layers of loading hydraulic cylinder and rod chamber hydraulic fluid port, the flat Y-direction first of 10 latus rectum Welded fittings, 16.10 ~ 16.15 water receivings, two, the rodless cavity of three layers of loading hydraulic cylinder and rod chamber hydraulic fluid port, 20 latus rectum Welded fittings 9.2 communicate with valve piece 1 inner total oil circuit and draining road, take back oily oil purifier by exterior line.
Working principle of the present invention is:
This valve block assembly device is installed on the fuel tank of hydraulic station by support 13.1 ~ 13.2, the main oil pump outlet is connected in 20 latus rectum Welded fittings 9.1 by pipeline, the slippage pump outlet connects 8 latus rectum Welded fittings 12 by pipeline, 6 latus rectum Welded fittings 2.1 ~ 2.7 link to each other with drain tap with the corresponding pressure tap of six point pressure table switches by pipeline, 10 latus rectum Welded fittings 16.1 ~ 16.15 are connected with the hydraulic fluid port of oil hydraulic cylinder by pipeline, and 20 latus rectum Welded fittings 9.2 take back oily oil purifier by exterior line.When main oil pump or slippage pump work, provide pressure oil to hydraulic system, valve piece 1 inside has the duct, pressure oil is flowed according to the designed route of hydraulic principle Fig. 1, the outside is equipped with hydrovalve, the actions such as decompression, commutation, throttling to pressure oil be can realize, externally output and internal recovery hydraulic oil are connected by each Welded fitting and hydraulic system miscellaneous part at last.The present invention makes hydraulic system structure compact, is convenient to reduce installation workload in factory-assembled, debugging, and is conducive to the maintenance work in later stage.
Claims (2)
1. the valve block assembly of a synthesis experiment platform hydraulic system, be used for realizing the integrated installation of each hydrovalve of synthesis experiment platform hydraulic system, it is characterized in that: the hydraulic system of this synthesis experiment platform comprises main supply oil circuit and the hydraulic control circuit that is connected with the main supply oil circuit by the total pressure oil circuit, the main supply oil circuit comprises that main pump supplies oil circuit for oil circuit and slippage pump, and this hydraulic control circuit comprises the shuttle table lifting oil hydraulic circuit of doing elevating movement for the loading case of control experiment porch, do the Z-direction oil hydraulic cylinder control loop that Z-direction loads for end face on the loading case of control experiment porch, the loading case that is used for the control experiment porch is done the X-direction oil hydraulic cylinder control loop that the directions X level loads and the loading case that is used for the control experiment porch is done the Y-direction oil hydraulic cylinder control loop that the Y-direction level loads; Shuttle table lifting oil hydraulic circuit comprises four parallel lifting hydraulic cylinder, a reduction valve, a throttle valve, two-position three-way electromagnetic ball valves that arrange; Z-direction oil hydraulic cylinder control loop comprises four the parallel vertical loading hydraulic cylinder of Z-direction, 3-position 4-way solenoid directional control valves that arrange; X-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop include the identical horizontal hydraulic cylinder control loop of three-decker, and every layer of horizontal hydraulic cylinder control loop includes four parallel horizontal loading hydraulic cylinder, a 3-position 4-way solenoid directional control valve and reduction valve that arrange; The valve piece that described valve block assembly comprises support and is installed on support; Described valve piece inside offers the duct take the hydraulic system of synthesis experiment platform as the basis, and valve piece inside is respectively arranged with total pressure oil circuit, total oil circuit, total draining road; The left surface of valve piece is separately installed with a reduction valve, 6 latus rectum Welded fittings and a hexagonal socket head plug, the end face of valve piece is separately installed with a 3-position 4-way solenoid directional control valve, a throttle valve and six reduction valve, the front of valve piece is separately installed with five 6 latus rectum Welded fittings, an electromagnetic relief valve, a large flow check valve and three hexagonal socket head plugs, the right flank of valve piece is installed respectively a pressure meter switch, a small flow one-way valve, 20 latus rectum Welded fittings, a hexagonal socket head plug and 8 latus rectum Welded fittings, 6 latus rectum Welded fittings are installed respectively at the back side of valve piece, two hexagonal socket head plugs, 16 10 latus rectum Welded fittings, two hexagonal socket head plugs are then installed respectively in the bottom surface of valve piece, 20 latus rectum Welded fittings; A two-position three-way electromagnetic ball valve is installed with stacked system in the reduction valve outside that is in valve piece left side, and a 3-position 4-way solenoid directional control valve is all installed with stacked system in each reduction valve outside that is in valve piece end face; Be in each parts on valve piece right side: pressure meter switch dispose for pressure gauge, the 20 latus rectum Welded fittings of measuring the total pressure oil circuit be connected with the main pump oil outlet, 8 latus rectum Welded fittings are connected with the slippage pump oil outlet; Be arranged in five 6 latus rectum Welded fittings in valve piece front, one of them is connected with the pressure tap of the six point pressure table switches that are used for measurement total pressure oil circuit pressure, and remaining four then are connected with the drain tap of six point pressure table switches; The 6 latus rectum Welded fittings that are positioned at valve piece left side are connected with the drain tap of six point pressure table switches, and the 6 latus rectum Welded fittings that are positioned at the valve piece back side then are connected with the pressure tap of the six point pressure table switches that are used for measurement shuttle table lifting oil hydraulic circuit; Be arranged in 16 10 latus rectum Welded fittings at the back side: one of them 10 latus rectum Welded fitting is connected with the lifting hydraulic cylinder hydraulic fluid port, wherein two 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of Z-direction respectively, wherein six 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port of each horizontal loading hydraulic cylinder in X-direction oil hydraulic cylinder control loop respectively, and six remaining 10 latus rectum Welded fittings are connected with the rod chamber hydraulic fluid port with the rodless cavity hydraulic fluid port that the Y-direction oil hydraulic cylinder is controlled each horizontal loading hydraulic cylinder in loop respectively; The 20 latus rectum Welded fittings that are positioned at valve piece bottom surface are communicated with total oil circuit and total draining road of valve piece inside respectively, and this 20 latus rectum Welded fitting is connected with return oil filter by pipeline.
2. the valve block assembly of described synthesis experiment platform hydraulic system according to claim 1, it is characterized in that: described small flow one-way valve, large flow check valve, electromagnetic relief valve, two-position three-way electromagnetic ball valve, throttle valve and each three position four-way electromagnetic valve are plate valve; Each reduction valve is all Sandwich plate valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210374906.0A CN102878137B (en) | 2012-09-28 | 2012-09-28 | Valve block assembly of hydraulic system of comprehensive experiment platform |
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| CN201210374906.0A CN102878137B (en) | 2012-09-28 | 2012-09-28 | Valve block assembly of hydraulic system of comprehensive experiment platform |
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| CN102878137B CN102878137B (en) | 2015-04-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465046A (en) * | 2013-05-14 | 2013-12-25 | 浙江永力达数控机床有限公司 | Numerically controlled fixture system for numerically controlled machine tools and usage thereof |
| CN104214158A (en) * | 2014-08-28 | 2014-12-17 | 中国北车集团大连机车研究所有限公司 | Solenoid control valve assembly for hydraulic transmission gear box |
| CN108223469A (en) * | 2016-12-14 | 2018-06-29 | 柳道万和(苏州)热流道***有限公司 | Oil pressure electromagnetic valve component and with its hot runner system |
| CN108930677A (en) * | 2018-08-16 | 2018-12-04 | 安徽卓科智能装备有限公司 | A kind of push-bench commutation valve group |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465046A (en) * | 2013-05-14 | 2013-12-25 | 浙江永力达数控机床有限公司 | Numerically controlled fixture system for numerically controlled machine tools and usage thereof |
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| CN108223469A (en) * | 2016-12-14 | 2018-06-29 | 柳道万和(苏州)热流道***有限公司 | Oil pressure electromagnetic valve component and with its hot runner system |
| CN108930677A (en) * | 2018-08-16 | 2018-12-04 | 安徽卓科智能装备有限公司 | A kind of push-bench commutation valve group |
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| Publication number | Publication date |
|---|---|
| CN102878137B (en) | 2015-04-15 |
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