CN204704173U - The fltting speed control system of hydraulic gate - Google Patents
The fltting speed control system of hydraulic gate Download PDFInfo
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- CN204704173U CN204704173U CN201520363478.0U CN201520363478U CN204704173U CN 204704173 U CN204704173 U CN 204704173U CN 201520363478 U CN201520363478 U CN 201520363478U CN 204704173 U CN204704173 U CN 204704173U
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- 239000012530 fluid Substances 0.000 claims description 50
- 230000000750 progressive effect Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 description 31
- 238000005553 drilling Methods 0.000 description 22
- 230000001276 controlling effect Effects 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of fltting speed control system of hydraulic gate, it driving mechanism comprising oil hydraulic pump and be connected with described oil hydraulic pump by main hydraulic circuit, the propelling selector valve described main hydraulic circuit being serially connected with the advance for controlling described driving mechanism and returning, described main hydraulic circuit is also serially connected with Pilot operated check valve, described Pilot operated check valve is by described driving mechanism extremely described oil hydraulic pump direction forward conduction, the control port of described Pilot operated check valve is connected with the described position of main hydraulic circuit between described Pilot operated check valve with described oil hydraulic pump by pilot control oil circuit, described pilot control oil circuit is serially connected with for controlling described Pilot operated check valve reverse-conducting whether the first control valve, described Pilot operated check valve is parallel with speeds control oil circuit, described speeds control oil circuit is serially connected with series flow control valve.Adopt this control system, convenient operation.
Description
Technical field
The utility model relates to a kind of hydraulic gate, and specifically, the utility model relates to a kind of fltting speed control system of hydraulic gate.
Background technique
Hydraulic gate in use, need control its fltting speed, to obtain, rock drilling is advanced, advance, rock drilling return and fast return four kinds of speed fast.Disclose a kind of fltting speed control system in prior art, obtain above-mentioned four kinds of speed in order to hydraulic control rock drill.
See Fig. 1, this control system comprises oil hydraulic pump 1, pilot control oil sources 2 and driving mechanism 12 etc., and pilot control oil sources 2 is for being propelling pilot handle 3 fuel feeding.This control system uses the first control valve 8 and the second control valve 9, advance (returning containing rock drilling advance and rock drilling) for controlling rock drilling and advance fast (containing advancing and fast return fast), the output circuit of the first control valve 8 is set by the first one-way throttle valve 10 and the second one-way throttle valve 11 forward velocity and the return speed of rock drilling propelling; Shuttle valve 7 and with advance the first selector valve 5 of being connected of pilot handle 3 and the second selector valve 6 then for the switching advanced fast and rock drilling advances, first selector valve 5 and the second selector valve 6 are solenoid valve, and relief valve 4 facilitates user adjust rock drilling propelling pressure and adapt to actual conditions demand.
Rock drilling advancement function: the first selector valve 5 and the second selector valve 6 all must not electricity.Push propelling pilot handle 3 to front, pilot pressure oil enters from the hydraulic fluid port P1 the first selector valve 5, goes out from hydraulic fluid port A1; Pilot pressure oil enters from the hydraulic fluid port a of the first control valve 8, promotes the first control valve 8, after the principal pressure oil from oil hydraulic pump 1 is entered from hydraulic fluid port P, arrives hydraulic fluid port A by the first control valve 8; Principal pressure oil continues through the first one-way throttle valve 10 and arrives driving mechanism 12, thus obtains the forward motion of rock drilling propelling.
Rock drilling returns function: the first selector valve 5 and the second selector valve 6 all must not electricity.Propelling pilot handle 3 is pulled to rear, and pilot pressure oil enters from the hydraulic fluid port P2 the second selector valve 6, goes out from hydraulic fluid port A2; The hydraulic fluid port b of pilot pressure oil on shuttle valve 7 to the first control valve 8, promotes the first control valve 8, after the principal pressure oil from oil hydraulic pump 1 is entered from hydraulic fluid port P, arrives hydraulic fluid port B by the first control valve 8; Principal pressure oil continues through the second one-way throttle valve 11 and arrives driving mechanism 12, thus obtains the return action of rock drilling propelling.
Quick advancement function: the first selector valve 5 and the second selector valve 6 all electric.Push propelling pilot handle 3 to front, pilot pressure oil enters from the hydraulic fluid port P1 the first selector valve 5, goes out from hydraulic fluid port B1; Pilot pressure oil enters from the hydraulic fluid port a of the second control valve 9, promotes the second control valve 9, after making the principal pressure of self-pumping oil to enter from hydraulic fluid port P, reaches hydraulic fluid port A by the second control valve 9; Principal pressure oil directly arrives driving mechanism 12, thus obtains the forward motion advanced fast.
Fast return function: the first selector valve 5 and the second selector valve 6 all electric.Propelling pilot handle 3 is pulled to rear, and pilot pressure oil enters from the hydraulic fluid port P2 the second selector valve 6, is divided into two-way, controls the first control valve 8 and the second control valve 9 respectively after hydraulic fluid port B2 exports.Namely, pilot pressure oil is through the hydraulic fluid port b of shuttle valve 7 to the first control valve 8, promote the first control valve 8, after making the principal pressure of self-pumping oil to enter from hydraulic fluid port P, hydraulic fluid port B is arrived by the first control valve 8, arrive driving mechanism 12 through the second one-way throttle valve 11, thus obtain the return action of rock drilling propelling; Meanwhile, pilot pressure oil, to the hydraulic fluid port b of the second control valve 9, promotes the second control valve 9, after the principal pressure oil from oil hydraulic pump 1 is entered from hydraulic fluid port P, arrives hydraulic fluid port B by the second control valve 9; Principal pressure oil directly arrives driving mechanism 12, thus obtains the return action advanced fast.
There is following technical problem in this control system of prior art:
1, use two control valves, the main oil pipe for connection valve group is many, and the oil circuit control of control valve is complicated, and oil pipe is many.Therefore, this system cost is high, and volume is large, is unfavorable for layout, installation and maintenance;
2, use two groups of one-way throttle valves, control forward velocity and the return speed of rock drilling propelling respectively, a cutting rate need regulate two valves, is unfavorable for regulating;
3, the speed that one-way throttle valve sets can change along with the change of oil temperature, and speed stability is not good enough;
4, the speed regulating control of this system is positioned at the working connection after control valve, is not easy to operation.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of fltting speed control system for rock drill, and its structure is simple, is convenient to regulate.
In order to solve the problems of the technologies described above, the utility model have employed following technological scheme: a kind of fltting speed control system of hydraulic gate, it driving mechanism comprising oil hydraulic pump and be connected with described oil hydraulic pump by main hydraulic circuit, the propelling selector valve described main hydraulic circuit being serially connected with the advance for controlling described driving mechanism and returning, described main hydraulic circuit is also serially connected with Pilot operated check valve, described Pilot operated check valve is by described driving mechanism extremely described oil hydraulic pump direction forward conduction, the control port of described Pilot operated check valve is connected with the described position of main hydraulic circuit between described Pilot operated check valve with described oil hydraulic pump by pilot control oil circuit, described pilot control oil circuit is serially connected with for controlling described Pilot operated check valve reverse-conducting whether the first control valve, described Pilot operated check valve is parallel with speeds control oil circuit, described speeds control oil circuit is serially connected with series flow control valve.
Preferably, described first control valve is two position three way directional control valve.
Preferably, described speeds control oil circuit is also serially connected with throttle valve.
Preferably, the location strings on described main hydraulic circuit between described propelling selector valve and described oil hydraulic pump is connected to pressure-compensated valve.
Preferably, described propelling selector valve is pilot operated directional control valve, and described pilot operated directional control valve has two control ports by advancing pilot handle to be connected with pilot control oil sources, and described pilot operated directional control valve can by the described propelling pilot handle commutation of operation.
Preferably, described propelling selector valve has the progressive position that described driving mechanism is advanced and the home position that described driving mechanism is returned, at described progressive position, described propelling selector valve also has an overflow hydraulic fluid port communicated with the filler opening of described propelling selector valve, described overflow hydraulic fluid port is connected with relief valve by overflow oil circuit, and the upper position between described relief valve and described propelling selector valve of described overflow oil circuit is also serially connected with the second control valve for controlling described overflow oil circuit break-make.
Further, described relief valve is adjustable relief valve.
Further, described second control valve is bi-bit bi-pass selector valve.
Further, described first control valve and described second control valve are solenoid valve.
Preferably, described driving mechanism is propelling cylinder.
Compared with prior art, the beneficial effects of the utility model are:
1, adopt a propelling selector valve to realize the speeds control of driving mechanism, structure is simple, is easy to operation;
2, adopt throttle valve and speed control valves series, can ensure while speed governing, avoid series flow control valve to produce noise because pressure reduction is excessive;
3, pressure-compensated valve is set, then can flows through the pressure reduction advancing selector valve by constant oil, thus ensure the constant flow advancing selector valve;
4, adjustable relief valve is set, oil pressure relief can be adjusted in real time according to rock stratum situation, thus the propelling force needed for obtaining.
Accompanying drawing explanation
Fig. 1 is in prior art, the schematic diagram of the fltting speed control system of hydraulic gate;
Fig. 2 is in the utility model, the schematic diagram of the fltting speed control system of hydraulic gate;
Fig. 3 is the partial structurtes enlarged view of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
The fltting speed control system of hydraulic gate of the present utility model, for controlling the fltting speed of hydraulic gate, thus obtain rock drilling advance, rock drilling returns, advance and fast return four kinds of speed fast.
See Fig. 2, Fig. 3, the fltting speed control system of hydraulic gate of the present utility model, the driving mechanism 16 comprising oil hydraulic pump 1 and be connected with oil hydraulic pump 1 by main hydraulic circuit 11.Oil hydraulic pump 1 forms the power resources of this system, main hydraulic circuit 11 is for being communicated with this oil hydraulic pump 1 and driving mechanism 16, wherein, this driving mechanism 16 can be propelling cylinder, or other are convenient to install rock drill and the mechanism can playing progradation to rock drill.
The propelling selector valve 14 main hydraulic circuit 11 being serially connected with the advance for controlling driving mechanism 16 and returning, can make driving mechanism 16 be in by the commutation of this selector valve and advance make rock drill near the state of rock stratum or return the state that makes rock drill away from rock stratum.Main hydraulic circuit 11 is also serially connected with Pilot operated check valve 6, Pilot operated check valve 6 is by driving mechanism 16 to oil hydraulic pump 1 direction forward conduction, the control port K of Pilot operated check valve 6 is connected with the main position of hydraulic circuit 11 between Pilot operated check valve 6 with oil hydraulic pump 1 by pilot control oil circuit 8, pilot control oil circuit 8 is serially connected with for controlling Pilot operated check valve 6 oppositely (by oil hydraulic pump 1 to driving mechanism 16 direction) conducting whether the first control valve 9, control the break-make of this pilot control oil circuit 8 by this first control valve 9 thus control Pilot operated check valve 6 oppositely whether conducting, as the first control valve 9 conducting then Pilot operated check valve 6 reverse-conducting, otherwise, then not conducting.This pilot control oil circuit 8 is also serially connected with throttle valve (not indicating in figure), for regulating the flow of this oil circuit.This first control valve 9, can be chosen as multiple, and what it mainly played herein is the effect controlling pilot control oil circuit 8 break-make, and in the utility model, this first control valve 9 is chosen as two position three way directional control valve, and is solenoid valve, passes through Electric control.Pilot operated check valve 6 is parallel with speeds control oil circuit 7, speeds control oil circuit 7 is serially connected with series flow control valve 5.
Adopt said structure, not conducting as reverse in Pilot operated check valve 6, then the oil of oil hydraulic pump 1 output need through series flow control valve 5, so this control system has rock drilling advance or rock drilling returns function; As Pilot operated check valve 6 reverse-conducting, then the oil that oil hydraulic pump 1 exports mainly can pass through this Pilot operated check valve 6, advances fast or fast return function so this control system has.
As previously mentioned, speeds control oil circuit 7 is serially connected with series flow control valve 5, but; as being only connected in series series flow control valve 5, before and after series flow control valve 5, often there will be large pressure reduction, thus causing series flow control valve 5 easily to produce large noise; for avoiding this problem, speeds control oil circuit 7 is also serially connected with throttle valve 4.Like this, series flow control valve 5 is formed with throttle valve 4 and is connected in series, and throttle valve 4 can share a part of pressure reduction, effectively avoids the noise that series flow control valve 5 produces because pressure reduction is excessive.
For constant oil flows through the pressure reduction advancing selector valve 14, in the utility model, main hydraulic circuit 11 is advancing the position between selector valve 14 and oil hydraulic pump 1 to be provided with pressure-compensated valve 13, be specially at Pilot operated check valve 6 and advance between selector valve 14.Like this, the constant flow advancing selector valve 14 can be ensured.
Advance selector valve 14 can be chosen as multiple, be convenient to commutate realize the advance of driving mechanism 16 and return function, in the utility model, selector valve 14 is advanced to be pilot operated directional control valve, pilot operated directional control valve has two, and by the control ports that advance pilot handle 15 to be connected with pilot control oil sources 2, (a, b), pilot operated directional control valve can be commutated by action advances pilot handle 15.As shown in Figure 2, two control ports of pilot operated directional control valve (a, b) to be connected with propelling pilot handle 15 respectively, pilot handle 15 is advanced to be connected (its concrete annexation not shown with pilot control oil sources 2, but it is easily understood that, pilot control oil sources 2 is for the control port fuel feeding for pilot operated directional control valve), propelling pilot handle 15 is the structure of similar selector valve, by pushing propelling pilot handle 15 to front or retracting rear, then can make two control ports conducting respectively of pilot operated directional control valve.
Selector valve 14 is advanced to have the progressive position (upper in figure) that driving mechanism 16 is advanced and the home position (bottom in figure) that driving mechanism 16 is returned, in addition, it also has the neutral position that driving mechanism 16 is failure to actuate.As shown in Figure 3, at progressive position, selector valve 14 is advanced also to have an overflow hydraulic fluid port 1403 communicated with the filler opening 1401 of propelling selector valve 14, namely advance the filler opening 1401 of selector valve 14 except being communicated with the oil outlet 1402 of driving driving mechanism 16 action, be also communicated with overflow hydraulic fluid port 1403.Overflow hydraulic fluid port 1403 is connected with relief valve 3 by overflow oil circuit 12, and the position on overflow oil circuit 12 between relief valve 3 and propelling selector valve 14 is also serially connected with the second control valve 10 for controlling water kick oil circuit 12 break-make.This relief valve 3 is arranged in operator cabin, is preferably adjustable relief valve, by the adjustment of oil pressure relief, can controls the size of propelling force well, thus obtains the propelling force needed for reality.
Second control valve 10 is for the break-make of controlling water kick oil circuit 12, and this second control valve 10 can be chosen as bi-bit bi-pass selector valve, and is solenoid valve.Certainly, this second control valve 10 also can be chosen as the valve that other can realize this function.
Next, composition graphs 2 and the working principle of Fig. 3 to this control system are described.
Rock drilling advances advancement function: the first control valve 9 and the second control valve 10 all must not be electric, and the principal pressure oil from oil hydraulic pump 1 from hydraulic fluid port A through throttle valve 4 (circulation diameter 1.2mm), can only arrive hydraulic fluid port B from the pressure compensated series flow control valve 5 of band; Push propelling pilot handle 15 to front, pilot pressure oil enters from the hydraulic fluid port b advanced selector valve 14, promotes to advance selector valve 14, makes the principal pressure oil entering hydraulic fluid port P arrive hydraulic fluid port D by advancing selector valve 14; Now, principal pressure oil drives driving mechanism 16, thus obtains the forward motion of rock drilling propelling.
Rock drilling advances and returns function: the first control valve 9 and the second control valve 10 all must not be electric, and the principal pressure oil from oil hydraulic pump 1 from hydraulic fluid port A through throttle valve 4, can only arrive hydraulic fluid port B from the pressure compensated series flow control valve 5 of band; Propelling pilot handle 15 is pulled to rear, and pilot pressure oil enters from the hydraulic fluid port a advanced selector valve 14, promotes to advance selector valve 14, makes the principal pressure oil entering hydraulic fluid port P arrive hydraulic fluid port C by advancing selector valve 14; Now, principal pressure oil drives driving mechanism 16, thus obtains the return action of rock drilling propelling.
Quick propelling advancement function: the first control valve 9 and the second control valve 10 all electric, the principal pressure oil from oil hydraulic pump 1 main from hydraulic fluid port A through Pilot operated check valve 6 to hydraulic fluid port B; Push propelling pilot handle 15 to front, pilot pressure oil enters from the hydraulic fluid port b advanced selector valve 14, promotes to advance selector valve 14, makes the principal pressure oil entering hydraulic fluid port P arrive hydraulic fluid port D by advancing selector valve 14; Now, principal pressure oil drives driving mechanism 16, thus obtains the forward motion advanced fast.
Quick propelling returns function: the first control valve 9 and the second control valve 10 all electric, the principal pressure oil from oil hydraulic pump 1 main from hydraulic fluid port A through Pilot operated check valve 6 to hydraulic fluid port B; Propelling pilot handle 15 is pulled to rear, and pilot pressure oil enters from the hydraulic fluid port a advanced selector valve 14, promotes to advance selector valve 14, makes the principal pressure oil entering hydraulic fluid port P arrive hydraulic fluid port C by advancing selector valve 14; Now, principal pressure oil drives driving mechanism 16, thus obtains the return action advanced fast.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection domain, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection domain of the present utility model.
Claims (10)
1. the fltting speed control system of a hydraulic gate, it is characterized in that, the driving mechanism comprising oil hydraulic pump and be connected with described oil hydraulic pump by main hydraulic circuit, the propelling selector valve described main hydraulic circuit being serially connected with the advance for controlling described driving mechanism and returning, described main hydraulic circuit is also serially connected with Pilot operated check valve, described Pilot operated check valve is by described driving mechanism extremely described oil hydraulic pump direction forward conduction, the control port of described Pilot operated check valve is connected with the described position of main hydraulic circuit between described Pilot operated check valve with described oil hydraulic pump by pilot control oil circuit, described pilot control oil circuit is serially connected with for controlling described Pilot operated check valve reverse-conducting whether the first control valve, described Pilot operated check valve is parallel with speeds control oil circuit, described speeds control oil circuit is serially connected with series flow control valve.
2. the fltting speed control system of hydraulic gate according to claim 1, is characterized in that, described first control valve is two position three way directional control valve.
3. the fltting speed control system of hydraulic gate according to claim 1, is characterized in that, described speeds control oil circuit is also serially connected with throttle valve.
4. the fltting speed control system of hydraulic gate according to claim 1, is characterized in that, the location strings on described main hydraulic circuit between described propelling selector valve and described oil hydraulic pump is connected to pressure-compensated valve.
5. the fltting speed control system of hydraulic gate according to claim 1, it is characterized in that, described propelling selector valve is pilot operated directional control valve, described pilot operated directional control valve has two control ports by advancing pilot handle to be connected with pilot control oil sources, and described pilot operated directional control valve can by the described propelling pilot handle commutation of operation.
6. the fltting speed control system of hydraulic gate according to claim 1, it is characterized in that, described propelling selector valve has the progressive position that described driving mechanism is advanced and the home position that described driving mechanism is returned, at described progressive position, described propelling selector valve also has an overflow hydraulic fluid port communicated with the filler opening of described propelling selector valve, described overflow hydraulic fluid port is connected with relief valve by overflow oil circuit, the upper position between described relief valve and described propelling selector valve of described overflow oil circuit is also serially connected with the second control valve for controlling described overflow oil circuit break-make.
7. the fltting speed control system of hydraulic gate according to claim 6, is characterized in that, described relief valve is adjustable relief valve.
8. the fltting speed control system of hydraulic gate according to claim 6, is characterized in that, described second control valve is bi-bit bi-pass selector valve.
9. the fltting speed control system of hydraulic gate according to claim 8, is characterized in that, described first control valve and described second control valve are solenoid valve.
10. the fltting speed control system of hydraulic gate according to claim 1, is characterized in that, described driving mechanism is propelling cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363478.0U CN204704173U (en) | 2015-05-29 | 2015-05-29 | The fltting speed control system of hydraulic gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363478.0U CN204704173U (en) | 2015-05-29 | 2015-05-29 | The fltting speed control system of hydraulic gate |
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| CN204704173U true CN204704173U (en) | 2015-10-14 |
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| CN201520363478.0U Active CN204704173U (en) | 2015-05-29 | 2015-05-29 | The fltting speed control system of hydraulic gate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888584A (en) * | 2016-04-07 | 2016-08-24 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Pole-replacing control security system for drill jumbo |
| CN106979182A (en) * | 2017-04-24 | 2017-07-25 | 山东七运集团有限公司 | A kind of control valve group and control system of the crawler body of fluid motor-driven walking |
| CN109236765A (en) * | 2018-12-10 | 2019-01-18 | 中国铁建重工集团有限公司 | Drill jumbo and its Thrust Hydraulic Control System |
-
2015
- 2015-05-29 CN CN201520363478.0U patent/CN204704173U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888584A (en) * | 2016-04-07 | 2016-08-24 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Pole-replacing control security system for drill jumbo |
| CN105888584B (en) * | 2016-04-07 | 2018-04-17 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Drill jumbo changes bar control security system |
| CN106979182A (en) * | 2017-04-24 | 2017-07-25 | 山东七运集团有限公司 | A kind of control valve group and control system of the crawler body of fluid motor-driven walking |
| CN109236765A (en) * | 2018-12-10 | 2019-01-18 | 中国铁建重工集团有限公司 | Drill jumbo and its Thrust Hydraulic Control System |
| CN109236765B (en) * | 2018-12-10 | 2019-03-26 | 中国铁建重工集团有限公司 | Drill jumbo and its Thrust Hydraulic Control System |
| WO2020119691A1 (en) * | 2018-12-10 | 2020-06-18 | 铁建重工新疆有限公司 | Drilling jumbo and advancing hydraulic control system therefor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 210038 2 Hengtai Road, Nanjing economic and Technological Development Zone, Jiangsu Patentee after: An Bai Tuo (Nanjing) Construction Mine Equipment Co., Ltd. Address before: 210038 Hengtai Road, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu 2 Patentee before: Atlas Copco (Nanjing) Construction & Mining Equipment Ltd. |
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| CP03 | Change of name, title or address |