CN101900144B - Small-sized drill pile-up valve - Google Patents
Small-sized drill pile-up valve Download PDFInfo
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- CN101900144B CN101900144B CN2010102330347A CN201010233034A CN101900144B CN 101900144 B CN101900144 B CN 101900144B CN 2010102330347 A CN2010102330347 A CN 2010102330347A CN 201010233034 A CN201010233034 A CN 201010233034A CN 101900144 B CN101900144 B CN 101900144B
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Abstract
This invention discloses a small-sized drill pile-up valve, which comprises a valve body. The small-sized drill pile-up valve is characterized in that: a reversing valve, an overloading valve and a balanced one-way throttle valve are arranged in the valve body; the valve cavity of the overloading valve and the valve cavity of the balanced one-way throttle valve are communicated with the valve cavity of the reversing valve through casting flow channels respectively; and the valve body is provided with a first oil port, a second oil port, a third oil port, a fourth oil port and a pressure gauge port. The integrated control valve adopts an inserting mode, is organically fused and integrated with the reversing functions into a whole, has the advantages of compact structure, high working pressure, low loss of flow channel pressure, sensitive feedback, convenient operation, attractive appearance, and convenient maintenance. The small-sized drill pile-up valve is suitable for coal seam drilling machinery and small-sized drilling machinery for geological prospecting, is also suitable for small-sized engineering machinery, highway machinery, environmental health sanitation machinery, agricultural machinery and the like.
Description
Technical field
The invention belongs to the hydraulic control device parts, be specifically related to a kind of small-sized drill pile-up valve.It is to use the conversion of hydraulics to fluid moving direction; The adjusting of movement velocity; The hydraulic combined valve that system pressure etc. can be controlled respectively; Be mainly used in coal seam probing, the small-sized boring mechanic of used for geological prospecting, also be applicable to small engineering machinery, road machine, environmental sanitation machinery, farm machinery etc.
Background technique
The probing of existing coal seam, the employed oil circuit control mode of geologic prospecting small-sized drill do;
(1) adopt multiple directional control valve to realize the conversion and the pressure control of fluid moving direction; And in hydraulic system China and foreign countries order realizes the control requirement to actuator movement speed to throttle valve; Cause pipeline complex connection, big, the manipulation inconvenience of volume, the external leakage possibility is increased.Most direct-acting overflow valve or the pilot operated compound relief valve of adopting of multiple directional control valve adjusted and Control work pressure, adopts direct-acting overflow valve because open and shut characteristic is poor, and power loss is big, and system's heating is serious.Adopt conventional pilot operated compound relief valve then since fixedly damping hole have only Φ 0.8mm, very easily resulting in blockage makes thrashing, contamination resistance is poor, system reliability reduction.
(2) adopt the external relief valve of manually operated valve, one-way throttle valve control mode, its external pipeline is more than above-mentioned first kind of mode, and reliability is low.
(3) existing multiple directional control valve that adopts or manually operated valve working pressure are all below 21Mpa.And be the old-fashioned structure (like ZS series multi-way valve and 34S-L ※ H series manually operated valve) of design many years ago, the reversing maneuver difficulty, guiding valve place Seal Design is inconsiderate, and leakage of oil happens occasionally.
In view of the foregoing, press for to small-sized drill and develop the novel multifunctional integrated valve that a kind of delicate structure, level of integration are high, performance is significantly increased.
Summary of the invention
The present invention is directed to the problems referred to above that existing technology exists; A kind of small-sized drill pile-up valve is proposed; Its collection selector valve, overload valve, balanced type one-way throttle valve are one; Can satisfy the small-sized drill functional requirement, band pressure speed governing and reversing maneuver are light, can realize the effective control to the small-sized drill hydraulic mechanism.
A kind of small-sized drill pile-up valve of the present invention; Comprise valve body; It is characterized in that: in valve body, be provided with selector valve, overload valve and balanced type one-way throttle valve, overload valve valve pocket and balanced type one-way throttle valve valve pocket are communicated with the selector valve valve pocket through the casting runner respectively; On valve body, be provided with first hydraulic fluid port, second hydraulic fluid port, the 3rd hydraulic fluid port, the 4th hydraulic fluid port and pressure gauge connection.
Described a kind of small-sized drill pile-up valve; The support that its described selector valve comprises the guiding valve that cooperates with the selector valve valve pocket, cooperate with the left part of guiding valve and be close to valve body, with the right part cooperation of guiding valve and the baffle plate of being close to valve body, be enclosed within first spring seat, an end on the guiding valve right part and be connected locating column that the other end is with second spring seat with the right-hand member of guiding valve, be located at Returnning spring between first spring seat and second spring seat, cover on the end cap outside locating column and the guiding valve right part, also comprise the handle frame that is connected with the guiding valve left end; In the selector valve valve pocket, be provided with first passage, second channel, third channel, four-way, five-way road, the 6th passage, the 7th passage and the 8th passage; On guiding valve, be provided with three road annular grooves, communicate corresponding of one annular groove of left part with second channel, one annular groove at middle part is with four-way and the five-way road is corresponding communicates, and one annular groove of right part communicates with the 7th passage is corresponding; The 8th passage communicates with first hydraulic fluid port, and third channel, five-way road and the 6th passage communicate with second hydraulic fluid port through the 9th passage; Four-way communicates with first passage and the 8th passage through the 16 passage.
Described a kind of small-sized drill pile-up valve; Its described overload valve comprises the main valve housing that cooperates with the overload valve valve pocket, the main valve plug that cooperates with the main valve housing inwall and poppet valve seat, the damper rod that cooperates with the center hole of main valve plug and poppet valve seat, be enclosed within damper rod middle part one end and main valve plug near the other end and poppet valve seat near damping spring, screw thread valve pocket that an end inwall cooperates with the main valve housing outer wall, and the pressure regulation swivel nut that is connected of the screw thread valve pocket the other end, be located in the pressure regulation swivel nut and the poppet valve and the pressure regulation post of the center hole corresponding matching of the circular cone of an end and poppet valve seat, be located at pressure adjusting spring between poppet valve and the pressure regulation post, and pressure regulation swivel nut the right part locking nut and the look nut that are connected, look nut passes through lock screw and locatees; The overload valve valve pocket communicates with the 6th passage of selector valve valve pocket through the 12 passage, and the overload valve valve pocket also communicates with the 8th passage of selector valve valve pocket through the tenth four-way; The 12 passage also be located at valve body on pressure gauge connection communicate.
Described a kind of small-sized drill pile-up valve; Its described balanced type one-way throttle valve comprises the throttling valve core that cooperates with balanced type one-way throttle valve valve pocket right part; Be located at the throttling spring between throttling valve core endoporus end wall and the balanced type one-way throttle valve valve pocket right-hand member end wall; The equalizing piston that contacts with the throttling valve core left end with left part cooperation of balanced type one-way throttle valve valve pocket and right-hand member; Be located at back-up ring, platen and the gland of balanced type one-way throttle valve valve pocket left end oral area, the throttling nut that an end passes gland, platen and back-up ring and the adjusting screw rod that contacts with the left end of equalizing piston successively, cooperate with adjusting screw rod and be close to gland, be connected at the handwheel of adjusting screw rod left end through Cock screw; The one-way throttle valve valve pocket communicates with the second channel of selector valve valve pocket through the tenth passage that is located between equalizing piston and the throttling valve core; Between the inwall of the outer wall of throttling valve core and one-way throttle valve valve pocket, be provided with the 11 passage, the chamber of one-way throttle valve valve pocket right part communicates with the 11 passage through the 17 passage that is located at the throttling valve core left part; The 11 passage communicates with the 3rd hydraulic fluid port on being located at valve body; Be located at that the tenth a three-channel end on the valve body communicates with the 3rd hydraulic fluid port, the other end communicates with one-way throttle valve valve pocket between equalizing piston and the back-up ring;
An end that is located at the tenth five-way road on the valve body communicates with the 7th passage of selector valve valve pocket, the other end communicates with the 4th hydraulic fluid port on being located at valve body.
The also stackable as required one group of selector valve group of the present invention constitutes parallel connection type two-way reversing oil circuit also, realizes the effective control to multiple small-sized drill hydraulic mechanism.Have following characteristics:
(1) the high 31.5Mpa of working pressure, range of flow is big: 8mm latus rectum, 40L/min; 15mm latus rectum, 100L/min;
(2) defectives such as to add inconvenience and volume that throttle valve brings big, and the pipeline connection reliability is poor, and feedback sensitivity lags behind, and installation conditions is limited have been changed;
(3) adopted the throttle grverning mode of balanced type, regulated light at the allowable pressure wheel of setting about;
(4) reversal valve group of the present invention adopts guiding valve zero external leakage design, and the main valve hole two ends are designed to low-pressure area, adopts the special seal structure to form the two seals line; Slide-valve surface adopts Hard Chromium Plating Technology, has improved surface flatness, has reduced frictional force; Changed original reversal valve because of structural design unreasonable or the sealing initial failure, the defective that external leakage happens occasionally;
(5) because overload valve adopts the dynamic damping structure, and contamination resistance is strong, and only surpassing off-load under the rated working pressure, opening and closing frequency and reduce, the vital part life-span is prolonged, reliability improves; Neutral position pressure off-load then constitutes unloading channel through runner between guiding valve and the valve body, and it is little to have the pressure loss, the characteristics that antipollution power is strong.
(6) because level of integration is high, delicate structure makes host configuration more flexible.The present invention with the former configuration oil circuit under the service condition relatively, volume reduces 1/2, weight saving 40%, performance significantly improves and has reduced cost of production.
The present invention integrated control valve adopt the plug-in mounting mode, organically blend with commutation function and become one, have delicate structure, working pressure is high, the flowpath pressure loss is little, feedback is sensitive, it is light to handle, beautiful shape, safeguard advantage easily.Be applicable to coal seam boring mechanic, the small-sized boring mechanic of used for geological prospecting, also be applicable to small engineering machinery, highway machinery, environmental sanitation machinery, farm machinery etc.
Description of drawings
Fig. 1 is an outline drawing of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the K-K ladder rotation cross section view of Fig. 3.
Fig. 5 is the D-D cross section view of Fig. 4.
Fig. 6 is the C-C cross section view of Fig. 1.
Fig. 7 is the B-B cross section view of Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2 and a kind of small-sized drill pile-up valve shown in Figure 3, comprise the selector valve, overload valve and the balanced type one-way throttle valve that are located in the valve body 3, overload valve valve pocket and balanced type one-way throttle valve valve pocket are communicated with the selector valve valve pocket through the casting runner respectively; On valve body 3, be provided with first hydraulic fluid port 41, second hydraulic fluid port 42, the 3rd hydraulic fluid port 43, the 4th hydraulic fluid port 44 and pressure gauge connection 45;
Referring to Fig. 4, Fig. 5 and Fig. 6; The support 2 that selector valve comprises the guiding valve 1 that cooperates with the selector valve valve pocket, cooperate with the left part of guiding valve and be close to valve body 3, with the right part cooperation of guiding valve and the baffle plate of being close to valve body 34, be enclosed within first spring seat 5, an end on the guiding valve right part and be connected locating column 9 that the other end is with second spring seat 7 with the right-hand member of guiding valve, be located at Returnning spring 8 between first spring seat and second spring seat, cover on the end cap 6 outside locating column and the guiding valve right part, also comprise the handle frame 36 that is connected with the guiding valve left end; In the selector valve valve pocket, be provided with first passage 51, second channel 52, third channel 53, four-way 54, five-way road 55, the 6th passage 56, the 7th passage 57 and the 8th passage 58; On guiding valve, be provided with three road annular grooves, one annular groove of left part and second channel 52 corresponding communicating, one annular groove at middle part and four-way 54 and five-way road 55 corresponding communicating, one annular groove of right part and the 7th passage 57 corresponding communicating; The 8th passage communicates with first hydraulic fluid port 41, and third channel 53, five-way road 55 and the 6th passage 56 communicate with second hydraulic fluid port 42 through the 9th passage 59; Four-way 54 communicates with first passage 51 and the 8th passage 58 through the 16 passage 66;
Referring to Fig. 4 and Fig. 7; Overload valve comprises the main valve housing 10 that cooperates with the overload valve valve pocket, the main valve plug 11 that cooperates with the main valve housing inwall and poppet valve seat 14, the damper rod 22 that cooperates with the center hole of main valve plug 11 and poppet valve seat 14, be enclosed within damper rod middle part one end and main valve plug near the other end and poppet valve seat near damping spring 13, screw thread valve pocket 12 that an end inwall cooperates with the main valve housing outer wall, and the pressure regulation swivel nut 21 that is connected of the screw thread valve pocket the other end, be located in the pressure regulation swivel nut and the poppet valve 20 and the pressure regulation post 17 of the center hole corresponding matching of the circular cone of an end and poppet valve seat 14, be located at pressure adjusting spring 19 between poppet valve and the pressure regulation post, and pressure regulation swivel nut the right part locking nut 18 and the look nut 16 that are connected, look nut passes through lock screw 15 and locatees; The overload valve valve pocket communicates with the 6th passage 56 of selector valve valve pocket through the 12 passage 62, and the overload valve valve pocket also communicates with the 8th passage 58 of selector valve valve pocket through the tenth four-way 64; The 12 passage 62 also be located at valve body 3 on pressure gauge connection 45 communicate;
Referring to Fig. 4 and Fig. 7; The balanced type one-way throttle valve comprises the throttling valve core 24 that cooperates with balanced type one-way throttle valve valve pocket right part; Be located at the throttling spring 23 between throttling valve core endoporus end wall and the balanced type one-way throttle valve valve pocket right-hand member end wall; The equalizing piston 25 that contacts with the throttling valve core left end with left part cooperation of balanced type one-way throttle valve valve pocket and right-hand member; The throttling nut 30 that back-up ring 26, platen 27 and gland 28, one ends that are located at balanced type one-way throttle valve valve pocket left end oral area pass gland, platen and back-up ring and the adjusting screw rod 29 that contacts with the left end of equalizing piston successively, cooperate with adjusting screw rod and be close to gland, be connected at the handwheel 31 of adjusting screw rod left end through Cock screw 32; The one-way throttle valve valve pocket communicates with the second channel 52 of selector valve valve pocket through the tenth passage 60 that is located between equalizing piston 25 and the throttling valve core 24; Between the inwall of the outer wall of throttling valve core 24 and one-way throttle valve valve pocket, be provided with the 11 passage 61, the chamber of one-way throttle valve valve pocket right part communicates with the 11 passage 61 through the 17 passage 67 that is located at the throttling valve core left part; The 11 passage communicates with the 3rd hydraulic fluid port 43 on being located at valve body 3; An end that is located at the tenth triple channel 63 on the valve body 3 communicates with the 3rd hydraulic fluid port 43, the other end communicates with one-way throttle valve valve pocket between equalizing piston 25 and the back-up ring 26; An end that is located at the tenth five-way road 65 on the valve body 3 communicates with the 7th passage 57 of selector valve valve pocket, the other end communicates with the 4th hydraulic fluid port 44 on being located at valve body 3.
Referring to Fig. 4 and Fig. 6; Portion dress selector valve: the outside thread that utilizes locating column 9 one ends connects as one the internal thread of first spring seat 5 with the right-hand member of second spring seat 7, Returnning spring 8 and guiding valve 1; Pack in the selector valve valve pocket of valve body 3; Load onto baffle plate 4, end cap 6 in the right part of guiding valve 1, load onto support 2, and the position that cooperates with valve body in right ends portion is respectively charged into Sealing in the left part of guiding valve 1.Guiding valve 1 and support 2 are loaded onto handle frame 36 pack into first bearing pin 33 and second bearing pin 37, first packing ring 34 and second packing ring 38, first cotter pin 35 and second cotter pin 39;
Referring to Fig. 4 and Fig. 7; Portion's dress overload valve: with the main valve plug 11 of packing in the main valve housing 10, damper rod 22, damping spring 13, poppet valve seat 14; Locking nut 18, look nut 16 screwed on the outside thread of pressure regulation swivel nuts 21, pressure regulation post 17, pressure adjusting spring 19, poppet valve 20 are packed in the endoporus of pressure regulation swivel nut 21, pressure regulation swivel nut 21 is screwed in the internal thread of screw thread valve pockets 12; The cone tip part of noting poppet valve 20 will insert in the hole of poppet valve seat 14, forms driving fit.The overload valve of the dress of completion portion is screwed in the internal thread of right-hand member blind hole of valve body 3;
Referring to Fig. 4 and Fig. 7; Portion dress balanced type one-way throttle valve: throttling spring 23 is packed in the hole of throttling valve core 24; Reinstall in the valve body 3 left end blind holes, the equalizing piston 25 of packing into, back-up ring 26, platen 27, adjusting screw rod 29 is screwed in from the counterbore internal thread of gland 28, gland 28 is fixed on the valve body 3 with screw; Throttling nut 30 is screwed on the outside thread of adjusting screw rod 29, load onto handwheel 31, Cock screw 32 in the termination of exposing of adjusting screw rod 29.After product testing finishes, tighten locking in the internal thread with lock screw 15 screw-in look nuts 16.
Working principle of the present invention: pressure oil gets in the valve body 3 through hydraulic fluid port 42, links up with third channel 53, five-way road 55, the 6th passage 56 simultaneously through the 9th passage 59, and links up with pressure gauge connection 45 through casting runner and the 12 passage 62.
When Joystick frame 36 during to left movement, drive guiding valve 1 compression reseting spring 8 and move right and put in place, the work section of guiding valve 1 is sealing between four-way 54 and the five-way road 55, cut-out off-load oil circuit.Pressure oil gets into second channel 52 from third channel 53; And because second channel 52 and the 60 warp casting runners communications of the tenth passage; The conical surface end compression throttling spring 23 that pressure oil acts on throttling valve core 24 moves right on earth, and pressure oil gets into the 11 passage 61 and gets into cylinder rod chamber through hydraulic fluid port 43 through the tenth passage 60.The oil return of oil cylinder rodless cavity is simultaneously returned fuel tank from return opening 41, the contractile motion of realization oil cylinder through hydraulic fluid port 44 from the tenth five-way road 45 through casting runners and the 7th passage 57 ditches the 8th passage 58 that stimulates the menstrual flow;
When Joystick frame 36 moved right, drive guiding valve 1 compression reseting spring 8 moved left and puts in place, and guiding valve 1 work section cuts off the off-load oil circuit with sealing between four-way 54 and the five-way road 55.Pressure oil gets into the 7 57 passage from the 6th passage 56, and gets into oil cylinder rodless cavity again because the 7th passage 57 and the tenth five-way road 65 get into hydraulic fluid port 44 through the communication of casting runner.On the useful area of the oil return of cylinder rod chamber simultaneously after hydraulic fluid port 43 acts on valve from circumference aperture the 17 passage 67 of the 11 passage 61 through throttling valve core 24; Promote the end that throttling valve core 24 is pushed to equalizing piston 25 adjusting screw rod 29 with throttling spring 23; The oil return of cylinder rod chamber is through the conical surface of throttling valve core 24 and the clearance opening oil return between valve body 3 restrictions; Be communicated with eight passage 58 through casting runner communication second channel 52 entering first passages 51 through the 16 passage 66 from the tenth passage 60 and return fuel tank through hydraulic fluid port 41 again, oil cylinder realizes stretching out motion.The oil return of hydraulic fluid port 43 simultaneously acts on the left side of equalizing piston 25 through the tenth triple channel 63; The effective active area of equalizing piston 25 is slightly less than throttling valve core 24 rear end effective active areas; Because two cavity pressures equate; Make it can guarantee that throttling valve core 24 reliable movements prop up the end of adjusting screw rod 29 with equalizing piston 25, again greatly portion eliminate the compressive force of the thrust that acts on throttling valve core 24 rear ends and throttling spring 23 and form with joint efforts, make handwheel 31 adjusting screw rods 29 free and relaxed.
Can change the conical surface of throttling valve core 24 and the openings of sizes between valve body 3 restrictions through adjusting screw rod 29, the control recirculating oil quantity realizes oil cylinder is stretched out the control of movement velocity.Owing to adopted the oil circuit throttle style, make oil cylinder to stretch out motion more steady.When loosening Joystick frame 36; Guiding valve 1 is in the diagram neutral position under the effect of Returnning spring 8; Be in closure state between oil inlet and oil return mouth and the actuator port; Pressure oil 55 gets into four-ways 54 and returns fuel tank through casting runner and the 8th passage 58 ditches return opening 41 that stimulates the menstrual flow again through the five-way roads from hydraulic fluid port 42, and system is in unloading condition.
The overload valve working principle: pressure oil gets into the 12 passage 62 and acts on main valve plug 11 front ends through the casting runner from the 6th passage 56; When fluid reaches the overload valve set pressure or receive load shock and produce moment during the superpressure state; The pressure oil that gets into main valve plug 11 rear ends through the gap between main valve plug 11 and the damper rod 22 acts on the useful area of poppet valve 20 and acts on making a concerted effort on damper rod 22 useful area; The rapid pressure adjusting spring 19 of compression on poppet valve 20; Make driving fit place between poppet valve 20 and the poppet valve seat 14 form opening; Make pressure oil abrupt release and the off-load of main valve plug 11 rear ends; Ante-chamber pressure oil has little time to cause front and back pressure reduction suddenly to increase through the repairing of damping gap; Driving fit place that the oil pressure thrust that acts on main valve plug 11 front ends is opened rapidly between main valve plug 11 and the screw thread valve pocket 12 forms opening, fluid through this opening overflow from the tenth four-way 64 through hydraulic fluid port 41 oil returns of stimulating the menstrual flow of casting runners and the 8th passage 58 ditches, system pressure is remained in the set pressure scope.When the 12 passage 62 oil liquid pressures were lower than the overload valve set pressure, poppet valve 20 cut out the opening with poppet valve seat 14 under the thrust of pressure adjusting spring 19.The oil liquid pressure that gets into main valve plug 11 rear ends through the damping gap raises and the upstream pressure balance, and acts on the useful area of main valve plug 11 to form with damping spring 13 and make a concerted effort to promote main valve plug 11 and close, and this moment, system moved under the set pressure of overload valve.Adjustment look nut 16 will change the set pressure of overload valve, thereby system pressure is changed.Because the fluctuation of the pressure cycle property that hydraulic oil source is intrinsic; Make damper rod 22 produce slight dither with pressure surge; Make in the fluid particles contained pollutant be difficult for getting into and resting in the gap between main valve plug 11 and the damper rod 22, thereby the retentive control oil circuit is unobstructed.
Claims (5)
1. a small-sized drill pile-up valve comprises valve body (3), it is characterized in that: in valve body, be provided with selector valve, overload valve and balanced type one-way throttle valve, overload valve valve pocket and balanced type one-way throttle valve valve pocket are communicated with the selector valve valve pocket through the casting runner respectively; On valve body (3), be provided with first hydraulic fluid port (41), second hydraulic fluid port (42), the 3rd hydraulic fluid port (43), the 4th hydraulic fluid port (44) and pressure gauge connection (45);
The support (2) that described selector valve comprises the guiding valve (1) that cooperates with the selector valve valve pocket, cooperate with the left part of guiding valve and be close to valve body (3), with the right part cooperation of guiding valve and the baffle plate of being close to valve body (3) (4), be enclosed within first spring seat (5), an end on the guiding valve right part and be connected locating column (9) that the other end is with second spring seat (7) with the right-hand member of guiding valve, be located at Returnning spring (8) between first spring seat and second spring seat, cover on the end cap (6) outside locating column and the guiding valve right part, also comprise the handle frame (36) that is connected with the guiding valve left end; In the selector valve valve pocket, be provided with first passage (51), second channel (52), third channel (53), four-way (54), five-way road (55), the 6th passage (56), the 7th passage (57) and the 8th passage (58); On guiding valve, be provided with three road annular grooves, one annular groove of left part and corresponding the communicating of second channel (52), one annular groove at middle part and corresponding the communicating of four-way (54) and five-way road (55), one annular groove of right part and corresponding the communicating of the 7th passage (57); The 8th passage communicates with first hydraulic fluid port (41), and third channel (53), five-way road (55) and the 6th passage (56) communicate with second hydraulic fluid port (42) through the 9th passage (59); Four-way (54) communicates with first passage (51) and the 8th passage (58) through the 16 passage (66).
2. a kind of small-sized drill pile-up valve according to claim 1; It is characterized in that: described overload valve comprises the main valve housing (10) that cooperates with the overload valve valve pocket, the main valve plug (11) that cooperates with the main valve housing inwall and poppet valve seat (14), the damper rod (22) that cooperates with the center hole of main valve plug (11) and poppet valve seat (14), be enclosed within damper rod middle part one end and main valve plug near the other end and poppet valve seat near damping spring (13), screw thread valve pocket (12) that an end inwall cooperates with the main valve housing outer wall, and the poppet valve (20) and the pressure regulation post (17) of the center hole corresponding matching of the pressure regulation swivel nut (21) that is connected of the screw thread valve pocket the other end, the circular cone that is located at the interior and end of pressure regulation swivel nut and poppet valve seat (14), be located at pressure adjusting spring (19) between poppet valve and the pressure regulation post, and pressure regulation swivel nut the right part locking nut (18) and the look nut (16) that are connected, look nut passes through lock screw (15) and locatees; The overload valve valve pocket communicates with the 6th passage (56) of selector valve valve pocket through the 12 passage (62), and the overload valve valve pocket also communicates with the 8th passage (58) of selector valve valve pocket through the tenth four-way (64); The 12 passage (62) also be located at valve body (3) on pressure gauge connection (45) communicate.
3. a kind of small-sized drill pile-up valve according to claim 1; It is characterized in that: described balanced type one-way throttle valve comprises the throttling valve core (24) that cooperates with balanced type one-way throttle valve valve pocket right part; Be located at the throttling spring (23) between throttling valve core endoporus end wall and the balanced type one-way throttle valve valve pocket right-hand member end wall; The equalizing piston (25) that contacts with the throttling valve core left end with left part cooperation of balanced type one-way throttle valve valve pocket and right-hand member; Be located at back-up ring (26), platen (27) and the gland (28) of balanced type one-way throttle valve valve pocket left end oral area, an end passes gland, platen and back-up ring successively and the adjusting screw rod (29) that contacts with the left end of equalizing piston, the throttling nut (30) that cooperates with adjusting screw rod and be close to gland, be connected at the handwheel (31) of adjusting screw rod left end through Cock screw (32); The one-way throttle valve valve pocket communicates with the second channel (52) of selector valve valve pocket through the tenth passage (60) that is located between equalizing piston (25) and the throttling valve core (24); Between the inwall of the outer wall of throttling valve core (24) and one-way throttle valve valve pocket, be provided with the 11 passage (61), the chamber of one-way throttle valve valve pocket right part communicates with the 11 passage (61) through the 17 passage (67) that is located at the throttling valve core left part; The 11 passage communicates with the 3rd hydraulic fluid port (43) on being located at valve body (3).
4. a kind of small-sized drill pile-up valve according to claim 1 is characterized in that: an end that is located at the tenth triple channel (63) on the valve body (3) communicates with the 3rd hydraulic fluid port (43), the other end communicates with one-way throttle valve valve pocket between equalizing piston (25) and the back-up ring (26);
5. a kind of small-sized drill pile-up valve according to claim 1 is characterized in that: an end that is located at the tenth five-way road (65) on the valve body (3) communicates with the 7th passage (57) of selector valve valve pocket, the other end communicates with the 4th hydraulic fluid port (44) on being located at valve body (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102330347A CN101900144B (en) | 2010-07-22 | 2010-07-22 | Small-sized drill pile-up valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102330347A CN101900144B (en) | 2010-07-22 | 2010-07-22 | Small-sized drill pile-up valve |
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| CN101900144A CN101900144A (en) | 2010-12-01 |
| CN101900144B true CN101900144B (en) | 2012-11-07 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106382269B (en) * | 2016-09-22 | 2017-10-20 | 安徽理工大学 | It is a kind of that there is speed governing, commutation, the combination valve of relief function |
| CN108412831B (en) * | 2018-05-09 | 2023-07-25 | 河北华春液压汽配有限公司 | Shunt pressure-regulating speed-regulating reversing integrated valve |
| CN109653724A (en) * | 2018-12-25 | 2019-04-19 | 中国铁建重工集团有限公司 | The control system of airborne anchor rod drilling machine |
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| DE3511252A1 (en) * | 1984-04-12 | 1985-10-24 | Bryne Mek. Verksted A/S, Bryne | REVERSE OR SWITCH VALVE |
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| CN201195208Y (en) * | 2008-02-19 | 2009-02-18 | 广西工学院 | Power head of drilling and boring machine |
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| CN101900144A (en) | 2010-12-01 |
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