CN203627376U - Novel triple control valve for hydraulic rock drilling trolley - Google Patents
Novel triple control valve for hydraulic rock drilling trolley Download PDFInfo
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- CN203627376U CN203627376U CN201320852855.8U CN201320852855U CN203627376U CN 203627376 U CN203627376 U CN 203627376U CN 201320852855 U CN201320852855 U CN 201320852855U CN 203627376 U CN203627376 U CN 203627376U
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Abstract
The utility model discloses a novel triple control valve for a hydraulic rock drilling trolley, and relates to the field of rock and ore extraction devices. The novel triple control valve comprises a high-pressure oil pump and an electromagnetic control valve set connected with the high-pressure oil pump, the electromagnetic control valve set is communicated with a triple valve body, the triple valve body internally comprises three reversing valves connected through oil way pipes in parallel, the three reversing valves include the impact reversing valve, the boosting reversing valve and the rotation reversing valve, the three reversing valves are fixedly connected to a same valve plate, an oil inlet-outlet port of the impact reversing valve is connected with an impact safety valve in parallel, an oil inlet-outlet port of the rotation reversing valve is connected with a rotation safety valve in parallel, the impact safety valve and the rotation safety valve are installed on the two sides of the valve plate respectively. The control valve is of an independent parallel type structure, a triple control valve of an integrated structure can be replaced, full hydrofication of the hydraulic rock drilling trolley is achieved, the structural maintaining cost is low, and maintenance is convenient to achieve.
Description
Technical field
The utility model relates to rock, ore extraction apparatus field, novel three linkage control valves for especially a kind of hydraulic drill ring.
Background technique
SimbaH252 hydraulic drill ring is by electric and hydraulic control system, to realize the rock drilling equipment of walking, location and all-hydraulicization of rock drilling operation.
SimbaH252 drill jumbo is compact structure in the time of design, and the arrangement of valve and oil pipe layout are unified, has adopted the combination brake switch and proporting of valve body centralized layout, and three valves are exactly one wherein.Chassis rock drilling is mainly controlled by three valves.
Three valves of SimbaH252 drill jumbo are produced by BOSCH-REXROTH company of West Germany, these parts are crucial hydraulic units of drill jumbo, because BOSCH-REXROTH has now stopped producing this product, new product is not suitable for this car, expensive, order goods difficult, and at present domestic hydraulic element factory production similar components is very difficult.In addition,, because three valves adopt overall structure, along with the prolongation of the chassis length of service, between valve body, damage and increase.
Former three valve arrangement features are as follows: whole three valves comprise 3 spools and two safety valves, and are arranged on a valve body, oil groove complexity, and oil return is concentrated, without connecting plate, and compact overall structure, volume is little, controls and concentrates.
Its structural imperfection: three valve bodies are foundry goods, its safety valve and selector valve are concentrated together, and it is little that oil pipe space is changed in maintenance repair, loses time, and because the wearing and tearing of dash valve spool or valve body cause entirety to be scrapped, cannot repair.
Fact proved, the pneumatic rock drill of the ratio of hydraulic gate is superior, and the one, energy-conservation two is environmental protection.At present, rock drilling industry has also been taked respectively some ameliorative measures for the Problem of Failure of three valves, and such as part pneumatic valve is changed into hydrovalve, also have plenty of and increase some wearing and tearing mechanisms etc., but all that three valves in three valves are thoroughly not independent.
Therefore, be badly in need of a kind of novel substitute products, realize spare parts domestically produced, thereby reduce Drilling cost.
Model utility content
The technical problems to be solved in the utility model is to provide novel three linkage control valves for a kind of hydraulic drill ring, this control valve is independent abreast-type structure, can replace three linkage control valves of integral structure, and has realized all-hydraulicization of drill jumbo, structural maintenance cost is low, easy to maintenance.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: novel three linkage control valves for a kind of hydraulic drill ring, comprise high pressure oil pump, and the solenoid electric valve group being connected with high pressure oil pump, it is characterized in that described solenoid electric valve group is communicated with three valve bodies, in described three valve bodies, comprise three selector valves by oil-way pipe line parallel, be respectively impact selector valve, advance selector valve and slewing directional control valve, three selector valves are fixedly connected on same valve plate, the oil inlet and outlet place of described impact selector valve is parallel with impact safety valve, the oil inlet and outlet place of described slewing directional control valve is parallel with revolution safety valve, impact safety valve and revolution safety valve are installed on respectively the both sides of valve plate.
Said structure is described further, and described slewing directional control valve meta filler opening place sets up precompression valve, and described precompression valve is positioned at the right chamber of control of slewing directional control valve, and and the main valve portion chamber of slewing directional control valve between be provided with interval.In the utility model, set up precompression valve, by adopting electrichydraulic control, utilize the oil circuit feeding in solenoid electric valve group control slewing directional control valve, and set up oil pressure control unit, avoid the valve control that causes because meta oil pressure is too low malfunctioning.
Said structure is described further, and the two ends of described impact selector valve and propelling selector valve are provided with one-way throttle damper, and the solenoid electric valve group that described one-way throttle damper is corresponding with it is communicated with.One-way throttle damper in the utility model, can reduce oil circuit pilot pressure, when avoiding because of impact or advancing oil pressure too high, damages the spool of three valve selector valves, improves service life of equipment.
Said structure is described further to the guiding valve of the O type Median Function that described impact selector valve and slewing directional control valve are 3-position 4-way.
Said structure is described further, and described propelling selector valve is 3-position 4-way H type Median Function guiding valve.
The beneficial effect that adopts technique scheme to produce is:
(1) the utility model is the equipment retrofit that three linkage control valves of drill jumbo are carried out, realize electrichydraulic control mode, this control valve is designed to independent abreast-type structure, three selector valves in three valves are thoroughly independent, replace three linkage control valves of original integral structure, and realized all-hydraulicization of drill jumbo, structural maintenance cost is low, easy to maintenance;
(2) the utility model is set up precompression valve at slewing directional control valve meta filler opening place, utilizes the oil circuit feeding in solenoid electric valve group control slewing directional control valve, and has set up oil pressure control unit, avoids the valve control that causes because meta oil pressure is too low malfunctioning;
(3) the utility model is by increasing one-way throttle damper, and the pilot pressure while reducing operating mode, controls oil pressure P=0.6-1.0MPa.Thereby while weakening operating mode, the impact of fluid to three valve changeover valve cores, extends its working life.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is hydraulic scheme of the present utility model;
The whole-cutaway view of Fig. 2 slewing directional control valve;
Fig. 3 impacts and propelling selector valve electrichydraulic control principle;
Wherein: 1-tri-valve bodies, 2-plug, 3-solenoid electric valve group, 4-impact safety valve, 5-impacts selector valve, 6-advances selector valve, and 7-turns round safety valve, 8-slewing directional control valve, 9-valve plate, 10-precompression valve, 11-controls right chamber, 12-main valve portion chamber, 13-main reversing valve, 14-one-way throttle damper.
Embodiment
The utility model is specifically related to novel three linkage control valves for a kind of hydraulic drill ring, specifically comprise high pressure oil pump, and the solenoid electric valve group 3 being connected with high pressure oil pump, solenoid electric valve group 3 is communicated with three valve bodies 1, in three valve bodies 1, comprise three selector valves by oil-way pipe line parallel, be respectively and impact selector valve 5, advance selector valve 6 and slewing directional control valve 8, three selector valves are fixedly connected on same valve plate 9, the oil inlet and outlet place that impacts selector valve 5 is parallel with impact safety valve 4, the oil inlet and outlet place of slewing directional control valve 8 is parallel with revolution safety valve 7, impact safety valve 4 and revolution safety valve 7 are installed on respectively the both sides of valve plate 9, as shown in Figure 1.
Hydraulic drill ring modification, realize all-hydraulicization of drill jumbo, spare part domesticizes completely, the drilling staging of the pneumatic control before remodeling can be with reference to shown in the Fig. 1 in patent (CN2311605Y), in this structure, pass through the remodeling of selector valve and the variation of oil circuit, as the plug 2 increasing in the utility model Fig. 1, realize the change of oil circuit, original startup three valve bodies are transform as to three valve bodies of electrichydraulic control, and control valve is independent abreast-type structure, can replace three linkage control valves of integral structure, and realize all-hydraulicization of drill jumbo, greatly reduce user cost and there is certain dissemination.This technology is not only applicable to SimbaH252 drill jumbo, also be applicable to the rock drilling equipment of other analogues, make rock drilling equipment realize all-hydraulicization, and three valves in three valves are thoroughly independent, both broken away from the situation of spare part dependence on import element, also greatly reduce the difficulty of maintenance, thereby reduced the cost of rock drilling equipment.
In addition, the slewing directional control valve 8 meta filler opening places in the utility model set up precompression valve 10, and precompression valve 10 is positioned at the right chamber 11 of control of slewing directional control valve 8, and and the main valve portion chamber 12 of slewing directional control valve 8 between be provided with interval, as shown in Figure 2.Further, impact selector valve 5 and advance the two ends of selector valve 6 to be provided with one-way throttle damper 14, the solenoid electric valve group 3 that one-way throttle damper 14 is corresponding with it is communicated with, as shown in Figure 3.
By above improvement, the utility model can have following characteristics:
1) control of former three valves is air pressure control, for cost-saving, we adopt electrichydraulic control, just can get rid of air compressor, impact with advancing selector valve and have the high pressure oil that comes from system, there is no high pressure oil at slewing directional control valve meta, add precompression valve at slewing directional control valve meta filler opening, set up pilot pressure;
2) guiding valve of the O type Median Function of 2 3-position 4-ways of use, the guiding valve of the Median Function of 1 3-position 4-way H type is connected on a valve plate side by side, 2 safety valves are arranged on each both sides of this valve plate, so just can meet the working condition requirement of former three valves;
3) consider to impact and advance control oil pressure high; Low pressure when fuel tap core meta is controlled in revolution, high pressure is entered in working position, and such three valve changeover valve cores impact large, reduce its working life.Concrete measure is to be added with one-way throttle damper at three valve core two ends, reduces pilot pressure, controls oil pressure P=0.6-1.0MPa.
After remodeling, we adopt domestic hydraulic element factory to produce three valves, process voluntarily connecting plate, its volume are increased to original 20%, and cost price is 10,000 yuan of left and right, through testing disposable success.
Main purpose of the present utility model is to provide a kind of three novel valves that are easy to buy, with low cost, maintenance cost is low and replaces three original valves, thereby overcome the shortcoming that valve body wearing and tearing of former three valve need integral replacing, spares provisioning is timely, and it is extremely convenient to keep in repair.
The above is not only suitable for SimbaH252 hydraulic drill ring, and being also applicable to other has the rock drilling equipment of similar structure, and all any amendments of making within the utility model spirit and principle, alternative, within all should being included in protection domain of the present utility model.
Claims (5)
1. novel three linkage control valves for hydraulic drill ring, comprise high pressure oil pump, and the solenoid electric valve group (3) being connected with high pressure oil pump, it is characterized in that described solenoid electric valve group (3) is communicated with three valve bodies (1), in described three valve bodies (1), comprise three selector valves by oil-way pipe line parallel, be respectively and impact selector valve (5), advance selector valve (6) and slewing directional control valve (8), three selector valves are fixedly connected on same valve plate (9), the oil inlet and outlet place of described impact selector valve (5) is parallel with impact safety valve (4), the oil inlet and outlet place of described slewing directional control valve (8) is parallel with revolution safety valve (7), impact safety valve (4) and revolution safety valve (7) are installed on respectively the both sides of valve plate (9).
2. novel three linkage control valves for a kind of hydraulic drill ring according to claim 1, it is characterized in that described slewing directional control valve (8) meta filler opening place sets up precompression valve (10), described precompression valve (10) is positioned at the right chamber of control (11) of slewing directional control valve (8), and and the main valve portion chamber (12) of slewing directional control valve (8) between be provided with interval.
3. novel three linkage control valves for a kind of hydraulic drill ring according to claim 1, it is characterized in that described impact selector valve (5) and advance the two ends of selector valve (6) to be provided with one-way throttle damper (14), the solenoid electric valve group (3) that described one-way throttle damper (14) is corresponding with it is communicated with.
4. novel three linkage control valves for a kind of hydraulic drill ring according to claim 1, is characterized in that described impact selector valve (5) and slewing directional control valve (8) are the guiding valve of the O type Median Function of 3-position 4-way.
5. novel three linkage control valves for a kind of hydraulic drill ring according to claim 1, is characterized in that described propelling selector valve (6) is 3-position 4-way H type Median Function guiding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852855.8U CN203627376U (en) | 2013-12-23 | 2013-12-23 | Novel triple control valve for hydraulic rock drilling trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852855.8U CN203627376U (en) | 2013-12-23 | 2013-12-23 | Novel triple control valve for hydraulic rock drilling trolley |
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| Publication Number | Publication Date |
|---|---|
| CN203627376U true CN203627376U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320852855.8U Expired - Fee Related CN203627376U (en) | 2013-12-23 | 2013-12-23 | Novel triple control valve for hydraulic rock drilling trolley |
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| CN (1) | CN203627376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351273A (en) * | 2015-12-11 | 2016-02-24 | 重庆纳川山隅重工设备有限公司 | Anti-jamming control valve group for fully-hydraulic opencast rock drill |
-
2013
- 2013-12-23 CN CN201320852855.8U patent/CN203627376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351273A (en) * | 2015-12-11 | 2016-02-24 | 重庆纳川山隅重工设备有限公司 | Anti-jamming control valve group for fully-hydraulic opencast rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |