CN102168662A - Hydraulic direct-drive vertical multi-cylinder mud pump - Google Patents
Hydraulic direct-drive vertical multi-cylinder mud pump Download PDFInfo
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- CN102168662A CN102168662A CN 201110122499 CN201110122499A CN102168662A CN 102168662 A CN102168662 A CN 102168662A CN 201110122499 CN201110122499 CN 201110122499 CN 201110122499 A CN201110122499 A CN 201110122499A CN 102168662 A CN102168662 A CN 102168662A
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Abstract
The invention relates to a hydraulic direct-drive vertical multi-cylinder mud pump. At present, most of domestic and foreign mud pumps adopt a mechanical driving manner, such as a crank connecting rod, a cam, a swash plate and the like to convert the rotational movement of a motor into the reciprocating linear movement of a piston so as to finish the inflow and drainage processes of the mud pumps; and some hydraulic drive reciprocating mud pumps mostly take a hydraulic motor as a rotary input, and the driving manner is similar to that of the mechanical pump. The hydraulic direct-drive vertical multi-cylinder mud pump comprises a suction box body, a drainage box body, an oil inlet valve body, a hydraulic cylinder box body and a lifting device; and the oil inlet valve body, the hydraulic cylinder box body, and the drainage box body are arranged on the upper part of the suction box body in sequence in a laminated structure, and any two of the oil inlet valve body, the hydraulic cylinder box body, and the drainage box body are connected via a bolt and a double-end stud arranged in a circumferential direction. The invention adopts the structure of driving an oil pressure cylinder piston and a water pressure cylinder piston directly by hydraulic pressure, so the hydraulic energy is converted into water energy directly, the energy loss is reduced, and the utilization efficiency is improved.
Description
Technical field
The present invention relates to a kind of slurry pump, particularly a kind of hydraulic pressure directly drives, the slurry pump of vertical, multi-cylinder.
Technical background
At present, slurry pump both domestic and external mostly adopts mechanically operated modes such as crank-connecting rod, cam or swash plate, and rotatablely moving of motor is converted into the linear reciprocating motion of piston, finishes the advancing of slurry pump, drainage procedure.Some hydraulically powered piston high-density pumps are also arranged in recent years, how oil hydraulic motor is imported as revolution, its driving mode and mechanical pump are similar; The slurry pump that also useful hydraulic jack promotion moves reciprocatingly, but its commutation controlling mechanism complexity.Piston high-density pump commonly used at present is three cylinders, single crankpump mostly, can satisfy engineering mud pump delivery requirement in principle.
Three its deficiencies of cylinder crank slurry pump are:
1. the output flow characteristic of pump is by the characteristics of motion decision of power end slidercrank mechanism, and it is pressed simple harmonic motion and changes.Because of its piston cylinder number is few, the output flow crest height of wave, the ricing of its theoretical delivery is 14.1%, and pulsation is big, and the pump pressure poor stability generally adopts air tank to regulate;
2. increase the piston cylinder number, though can increase discharge capacity, reduction mass flow discrepancy evenness, complex structure, volume and weight strengthen processing difficulties;
3. improve the piston jig frequency, serious wear then, the working life of easily damaged parts is short;
Its deficiency of hydraulically powered piston high-density pump is: oil hydraulic motor is as the slurry pump of revolution input, except that the deficiency that has three cylinder crank slurry pump and, also because of the multiple conversions of energy, make its efficient low.
The slurry pump that the hydraulic jack promotion moves reciprocatingly, as patent CN200810031890.7, a kind of hydraulic slurry pump that is made of two groups or more combined oil cylinder is proposed, the hydraulic oil driving that utilization is in the oil cylinder discharge of backhaul is in the motion that feeds the stroke oil cylinder, adopt the Mechanical Contact control switch to realize commutation, reduce the pulsation of discharge flow rate by the group number that increases combined oil cylinder, but its commutating structure complexity, the commutation poor reliability.Patent CN02257780.7, utilize twin-tub single-acting hydraulic slurry pump in parallel, commutate the instantaneous pressure fluctuation when adopting accumulator (air tank) to fill up two cylinder alternations with the magnetic damping commutator control oil cylinder piston that differs 180 °, the commutation controlling mechanism complexity, poor reliability.
Along with the development of drilling technique to the raising that slurry pump discharge capacity, stability etc. require, it is big to press for the design discharge capacity, mass flow discrepancy evenness is littler, the slurry pump of stable performance.
Summary of the invention
Technical problem solved by the invention provides that a kind of flow is big, mass flow discrepancy evenness is little, pump pressure is stable, hydraulic pressure compact structure directly drives vertical multi-cylinder slurry pump.
For solving above-mentioned technical problem, the technological scheme that the present invention takes:
A kind of hydraulic pressure directly drives vertical multi-cylinder slurry pump, it is characterized in that: comprise suction casing, draining casing, oil-feed valve body, oil hydraulic cylinder casing, lowering or hoisting gear, oil-feed valve body, oil hydraulic cylinder casing, draining casing adopt stacked structure to be successively set on suction casing top and are connected with stud by the bolt that is provided with at circumferencial direction between the two arbitrarily, and the top of oil-feed valve body is provided with the balance casing; In the balance casing balance is set, inclined shaft is fixed on the balance middle part by pair of bearings, the pump shaft that is arranged on balance casing center is connected with inclined shaft by flat key, the oil distributing shaft that is arranged on oil-feed valve body central position is connected with pump shaft by flat key, with the pump shaft is that the center is passed through piston shoes in vertical shaft to the odd number oil hydraulic cylinder piston assembly of evenly arranging with one heart, ball pivot and balance ball-joint, piston shoes are connected with the surface of balance by locking nut, steel ball is all passed through in the lower end of each oil hydraulic cylinder piston assembly, cutting ferrule is connected with a hydraulic cylinder piston assembly, be provided with the hydraulic cylinder piston body between each oil hydraulic cylinder piston assembly and the hydraulic cylinder piston assembly, the polyurethane piston, each oil hydraulic cylinder piston assembly is arranged in the oil hydraulic cylinder on the oil hydraulic cylinder casing, and each hydraulic cylinder piston assembly is arranged in the hydraulic cylinder on the draining casing; The top of balance casing is provided with the transition cover plate, on the transition cover plate axially circumference uniform distribution be provided with coaxial through-hole with oil hydraulic cylinder piston assembly equal number, the internal layer of transition cover plate is provided with the annular pass, the annular pass is communicated with fuel tank; Lowering or hoisting gear comprises the small gear I, gearwheel, the small gear II, supporting base, lower roof plate, upper plate, studdle, three groups of strut assemblies, hand screw, handgrip, supporting base is set on the outer wall of balance casing, supporting base is connected with the draining casing by three groups of strut assemblies, three studdles are set respectively on the circumference of supporting base, a hand screw, studdle, the top of hand screw is provided with the small gear II respectively, the small gear I, the small gear I, the small gear II be arranged on supporting base upper end and be set in gearwheel engagement on the outer wall of balance casing, the upper end of studdle is connected with lower roof plate on the outer wall that is set in the balance casing, studdle is fixedlyed connected with lower roof plate by nut, and the top of lower roof plate is provided with the upper plate that two semicircular ring constitute; The water intake of suction casing is provided with the suction joint.
The quantity of above-mentioned oil hydraulic cylinder piston assembly is more than or equal to five and smaller or equal to 13 odd number.
Above-mentioned hydraulic cylinder piston body is connected with steel ball by jump ring, spring, cutting ferrule.
Above-mentioned suction joint is connected by the water intake of a pair of semicircle cutting ferrule with the water inlet casing, and the corner position of suction joint is higher than the position, water sucking mouth of suction valve.
Above-mentioned suction casing is provided with and the identical suction valve of oil hydraulic cylinder piston assembly quantity, suction valve be arranged on the suction casing with the pump shaft be the center in vertical shaft in the suction hole of evenly arranging with one heart.
Above-mentioned draining casing is provided with and the identical drain valve of oil hydraulic cylinder piston assembly quantity, drain valve be arranged on the draining casing with the pump shaft be the center in vertical shaft in the weep hole of evenly arranging with one heart.
Above-mentioned oil hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly, be arranged on the oil hydraulic cylinder casing with the pump shaft be the center in vertical shaft in the sleeve port of evenly arranging with one heart.
Above-mentioned hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly, be arranged on the draining casing with the pump shaft be the center in vertical shaft in the sleeve port of evenly arranging with one heart.
Above-mentioned oil distributing shaft adopts the dynamic balance structure of symmetry, oil distributing shaft axially be provided with two spill ports and two oil inlet holes, radial direction along oil distributing shaft is provided with four layers of oil circuit, first layer is provided with annular oil-feed tank and two oil inlet holes at the periphery of oil distributing shaft, the second layer is provided with oil-feed compensating groove I, the balance oil hole I, balancing oil groove I, the 3rd layer is provided with special-shaped distributing groove, join oily passage for two, oil-return groove that shape is consistent with distributing groove and drainback passage, the 4th layer is provided with oil-feed compensating groove II, the balance oil hole II, balancing oil groove II, high pressure oil is input to the annular oil-feed tank of oil distributing shaft via the oil circuit of oil-feed valve body, be input to oil inlet hole through oil inlet passage again, high pressure oil is input to oil-feed compensating groove I successively by oil inlet hole, distributing groove, oil-feed compensating groove II, the hyperbaric chamber of oil distributing shaft is communicated with the oil circuit of oil-feed valve body, after the oil circuit of the hyperbaric chamber of oil distributing shaft and oil-feed valve body disconnects, the low-pressure cavity of oil distributing shaft is communicated with the oil circuit of oil-feed valve body, the high pressure oil that drives the motion of oil hydraulic cylinder piston assembly is input to spill port by oil-return groove and drainback passage, high pressure oil is input to balancing oil groove I successively by spill port, oil-return groove, balancing oil groove II, last high pressure oil is exported from the spill port top.
The width of above-mentioned oil-feed compensating groove I, balancing oil groove I, oil-feed compensating groove II and balancing oil groove II is 1/2nd of distributing groove width.
Compared with prior art, beneficial effect of the present invention:
1, adopt hydraulic pressure directly to promote oil hydraulic cylinder piston and hydraulic cylinder structure of piston, hydraulic pressure can directly be converted to the water energy, reduces energy loss, improves utilization ratio.
2, many odd numbers oil hydraulic cylinder, hydraulic cylinder, suction valve and drain valve all are the center with the pump shaft, adopt vertical shaft evenly to arrange to concentric, and do not have air chamber, compact structure.
3, adopt many odd numbers oil hydraulic cylinder and hydraulic cylinder, POF is big, and the piston jig frequency is low, mass flow discrepancy evenness is little, the piston long service life.
4, adopt the fast inserting structure that flexibly connects between oil hydraulic cylinder piston assembly and the hydraulic cylinder piston assembly, technology capability is good, and dismounting is quick.
5, the present invention's design has lowering or hoisting gear, and is easy to maintenance.
6, adopt the oil distributing shaft commutation, it is simple in structure, commutation is reliable; Oil hydraulic cylinder rod chamber and hydraulic cylinder rodless cavity leave buffer space, and reversing impact is little.
7, adopt load sensitive pump as power source, can realize the step-less adjustment of output flow.
8, pour in down a chimney the water flooding regime that is pressed into, the suction performance of suction valve is reliable, suction efficiency is high, and pump can directly start, and is easy and simple to handle.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of lowering or hoisting gear of the present invention;
Fig. 3 is the structural representation of oil distributing pipe of the present invention;
Fig. 4 be among Fig. 3 A-A to sectional view;
Fig. 5 be among Fig. 4 B-B to sectional view;
Fig. 6 be among Fig. 4 C-C to sectional view;
Fig. 7 be among Fig. 4 D-D to sectional view;
Fig. 8 be among Fig. 4 E-E to sectional view;
Fig. 9 is the sectional view of oil hydraulic cylinder piston assembly 7 of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1,2,9, the present invention includes suction casing 1, draining casing 3, oil-feed valve body 17, oil hydraulic cylinder casing 6, lowering or hoisting gear 9, oil-feed valve body 17, oil hydraulic cylinder casing 6, draining casing 3 adopt stacked structure to be successively set on suction casing 1 top and are connected with stud by the bolt that is provided with at circumferencial direction between the two arbitrarily, and the top of oil-feed valve body 17 is provided with balance casing 16; Balance 14 is set in the balance casing 16, inclined shaft 12 is fixed on balance 14 middle parts by pair of bearings, the pump shaft 13 that is arranged on balance casing 16 centers is connected with inclined shaft 12 by flat key, the oil distributing shaft 8 that is arranged on oil-feed valve body 17 central positions is connected with pump shaft 13 by flat key, with pump shaft 13 is that the center is passed through piston shoes 10 in vertical shaft to the odd number oil hydraulic cylinder piston assembly of evenly arranging with one heart 7, ball pivot 11 and balance 14 ball-joints, piston shoes 10 are fitted all the time by the surface of locking nut and balance 14, piston shoes 10 are in the process that pumps of oil hydraulic cylinder piston assembly 7, all the time do well-regulated slip on balance 14 surfaces, ball pivot 11 is in the process of balance 14 oscillating motions, all the time be fixed in the ball-and-socket of piston shoes 10, the lower end of each oil hydraulic cylinder piston assembly 7 is all by steel ball 43, cutting ferrule 46 is connected with a hydraulic cylinder piston assembly 5, be provided with hydraulic cylinder piston body 47 between each oil hydraulic cylinder piston assembly 7 and the hydraulic cylinder piston assembly 5, polyurethane piston 48, each oil hydraulic cylinder piston assembly 7 is arranged in the oil hydraulic cylinder on the oil hydraulic cylinder casing 6, and each hydraulic cylinder piston assembly 5 is arranged in the hydraulic cylinder on the draining casing 3; The top of balance casing 16 is provided with transition cover plate 15, on the transition cover plate 15 axially circumference uniform distribution be provided with coaxial through-hole with oil hydraulic cylinder piston assembly 7 equal numbers, the internal layer of transition cover plate 15 is provided with the annular pass, the annular pass is communicated with fuel tank, during slurry pump work, high pressure oil can be got back to fuel tank through the annular pass in the transition cover plate 15 upper end cover plates from these seven through holes; Lowering or hoisting gear 9 comprises small gear I 19, gearwheel 20, small gear II 21, supporting base 22, lower roof plate 23, upper plate 24, studdle 25, three groups of strut assemblies 26, hand screw 27, handgrip 28, supporting base 22 is set on the outer wall of balance casing 16, supporting base 22 is connected with draining casing 3 by three groups of strut assemblies 26, three studdles 25 are set respectively on the circumference of supporting base 22, a hand screw 27, studdle 25, the top of hand screw 27 is provided with small gear II 21 respectively, small gear I 19, small gear I 19, small gear II 21 be arranged on supporting base 22 upper ends and be set in gearwheel 20 engagements on the outer wall of balance casing 16, the upper end of studdle 25 is connected with lower roof plate 23 on the outer wall that is set in balance casing 16, studdle 25 is fixedlyed connected with lower roof plate 23 by nut, the top of lower roof plate 23 is provided with the upper plate 24 that two semicircular ring constitute, and the effect of lowering or hoisting gear 9 is the maintenance for convenience of seven groups of oil hydraulic cylinder piston assemblys 7 of slurry pump and hydraulic cylinder piston assembly 5.Be fixed on the above-mentioned draining casing 3 by the supporting base 22 of three groups of strut assemblies 26 with this device, lowering or hoisting gear 9 adopts the inside engaged gear type of belt drive.Polyurethane piston 48 on the hydraulic cylinder piston assembly 5 of slurry pump is easily damaged partss, needs often to change.Only need during maintenance and will back out the uniform attaching nut of circumferencial direction between oil hydraulic cylinder casing 6 and the draining casing 3, rotate counterclockwise the handgrip 28 of lowering or hoisting gear 9, hand screw 27 drives small gear I 19 and rotates, driving gearwheel 20 rotates, small gear II 21 rotates counterclockwise with certain meshing relation, and then drive studdle 25 moves up, promoting lower roof plate 23 and upper plate 24 moves up together, with the pump shaft 13 that is assembled together in the balance casing 16 of slurry pump and this casing, inclined shaft 12, balance 14, piston shoes 10, ball pivot 11, oil hydraulic cylinder piston assembly 7, the 5 whole upwards promotions of hydraulic cylinder piston assembly, extract fully from cylinder body up to hydraulic cylinder piston assembly 5, just can change polyurethane piston 48 fast.
The quantity of above-mentioned oil hydraulic cylinder piston assembly 7 is more than or equal to five and smaller or equal to 13 odd number.
Oil hydraulic cylinder piston assembly 7 and hydraulic cylinder piston assembly 5 adopt steel ball 43 and the cutting ferrule 46 fast flexible connecting structure of inserting, and make the axially locating of steel ball 43 on hydraulic cylinder piston body 47 by jump ring 45, spring 44 and cutting ferrule 46.Cutting ferrule 46 is carried out a segment distance downwards, reserve outer diffuser space for steel ball 43, spur hydraulic cylinder piston assembly 5 downwards and just can be easy to separate with oil hydraulic cylinder piston assembly 7; During installation, with a Screw cutting ferrule 46 is positioned on the hydraulic cylinder piston body earlier, it is bonding with butter to reinstall steel ball 43(), insert the oil hydraulic cylinder piston afterwards, lay down Screw (band from), cutting ferrule 46 moves under the effect of spring 4, limits the outer of steel ball 43 and moves.So just can unload, adorn hydraulic cylinder piston assembly 5 fast.This flexibly connects and has only limited the radially degrees of freedom on the vibration-direction between oil hydraulic cylinder piston assembly 7 and the hydraulic cylinder piston assembly 5, and the operating mode of oil hydraulic cylinder piston assembly 7 and hydraulic cylinder piston assembly 5 is good during work, and reduces its difficulty of processing.
Above-mentioned suction joint 18 is fixed in the into water inlet of water casing 1 by a pair of semicircle cutting ferrule, and the corner position of suction joint 18 is higher than the position, water sucking mouth of suction valve 2, and slurry pump is absorbed water to pour in down a chimney the mode that is pressed into.The suction performance of suction valve is reliable, suction efficiency is high, and slurry pump can directly start, and need not start preceding water filling.
Above-mentioned suction casing 1 is provided with the suction valve 2 identical with oil hydraulic cylinder piston assembly 7 quantity, and it be the center in vertical shaft to one heart evenly in the suction hole of layout that suction valve 2 is arranged on the suction casing 1 with pump shaft 13.
Above-mentioned draining casing 3 is provided with the drain valve 4 identical with oil hydraulic cylinder piston assembly 7 quantity, drain valve 4 be arranged on the draining casing 3 with pump shaft 13 be the center in vertical shaft in the weep hole of evenly arranging with one heart.
Above-mentioned oil hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly 7, be arranged on the cylinder pressure casing 6 be with pump shaft 13 center in vertical shaft in the sleeve port of evenly arranging with one heart.
Above-mentioned hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly 7, be arranged on the draining casing 3 with pump shaft 13 be the center in vertical shaft in the sleeve port of evenly arranging with one heart.
Referring to Fig. 3-8, oil distributing shaft 8 is positioned at the central position of oil-feed valve body 17, can rotate around the valve body center, join oil for seven oil hydraulic cylinder circulations, realize the automatic reciprocating commutation of oil hydraulic cylinder piston assembly 7 and hydraulic cylinder piston assembly 5, promptly to allow it that relatively rotating of high speed arranged between oil distributing shaft 8 and the oil-feed valve body 17, guarantee leakage rate minimum again at fit up gap mesohigh oil, need to adopt floating-ring seal, when oil distributing shaft 8 rotates with respect to oil-feed valve body 17 with certain angular velocity, oil distributing shaft 8 self-alignments reach the purpose of floating-ring seal.In practical work process, oil distributing shaft 8 is subjected to the radial effect power that system provides high pressure oil to produce, its stress imbalance, and oil distributing shaft 8 can not self-alignment.In order to satisfy the required condition of floating-ring seal, oil distributing shaft 8 adopts the dynamic balance structure of symmetry, oil distributing shaft 8 axially be provided with two spill ports 29 and two oil inlet holes 31, radial direction along oil distributing shaft 8 is provided with four layers of oil circuit, first layer is provided with annular oil-feed tank 30 and two oil inlet holes 31 at the periphery of oil distributing shaft 8, the second layer is provided with oil-feed compensating groove I 33, balance oil hole I 34, balancing oil groove I 35, the 3rd layer is provided with special-shaped distributing groove 38, join oily passage 39 for two, oil-return groove 36 and drainback passage 37 that shape and distributing groove 38 are consistent, the 4th layer is provided with oil-feed compensating groove II 40, balance oil hole II 41, balancing oil groove II 42, the working mechanism that hydraulic pressure directly drives the oil distributing shaft 8 of slurry pump is: high pressure oil enters oil inlet hole 31 from oil inlet passage 32 after entering the annular oil-feed tank 30 of oil distributing shaft 8 via the oil circuit of oil-feed valve body 17.By oil inlet hole 31, high pressure oil enters oil-feed compensating groove I 33, the distributing groove 38 of C-C in the accompanying drawing, D-D, each section of E-E, the zone of oil-feed compensating groove II 40 successively, at this moment, the oil circuit of the hyperbaric chamber of oil distributing shaft 8 and oil-feed valve body 17 is connected, provide high pressure oil to the slurry pump oil cylinder, drive oil hydraulic cylinder piston assembly 7 and move downward.Because oil distributing shaft 8 rotates, after the oil circuit of its hyperbaric chamber and oil-feed valve body 17 disconnects, low-pressure cavity is just connected with the oil circuit of oil-feed valve body 17, just now drove the high pressure oil of oil hydraulic cylinder piston assembly 7 motions, by oil-return groove 36 and drainback passage 37, enter spill port 29, and flow into balancing oil groove I 35, the oil-return groove 36 of C-C in the accompanying drawing, D-D, each section of E-E, the zone of balancing oil groove II 42 successively, finally discharge from spill port 29 tops by this hole.Can see that from the structural drawing of oil distributing shaft 8 the regional sectional area of oil-feed compensating groove I 33, distributing groove 38, oil-feed compensating groove II 40 and balancing oil groove I 35, oil-return groove 36, balancing oil groove II 42 is to equate fully in its C-C, D-D, the E-E section.And the B-B section, owing to all be high pressure oil in the annular oil-feed tank 30, the radial pressure that it is subjected to is pointed to the axle center of oil distributing shaft 8 uniformly along circumference, so during slurry pump work, oil distributing shaft 8 is in the resultant radial force state of equilibrium.Oil distributing shaft 8 rotates then self-alignment with a fixed angular speed, and is liquid friction between the oil-feed valve body 17, and it is little to wear and tear, and good seal performance, and dredge oil amount is little.
The width of above-mentioned oil-feed compensating groove I 33, balancing oil groove I 35, oil-feed compensating groove II 40 and balancing oil groove II 42 is 1/2nd of distributing groove 38 width.
The working principle that hydraulic pressure of the present invention directly drives vertical multi-cylinder slurry pump is different with common plunger pump, adopts the oil hydraulic cylinder piston directly to promote the driving mode of hydraulic cylinder piston.When hydraulic pressure directly drove the work of vertical multi-cylinder slurry pump, hydraulic oil directly promoted oil hydraulic cylinder piston assembly 7, realized the to-and-fro motion of hydraulic cylinder piston assembly 5.When hydraulic oil promotes oil hydraulic cylinder piston assembly 7 and moves downward and its hydraulic cylinder piston assembly 5 that flexibly connects also move downward, under the effect of high pressure, suction valve 2 cuts out, drain valve 4 is opened, slurry pump is in hull-borne; When oil hydraulic cylinder piston assembly 7 moves downward, balance 14 1 side direction lower swings with its piston rod ball-joint, opposite side is upwards swing then, and oil hydraulic cylinder piston assembly 7 and hydraulic cylinder piston assembly 5 that drive and balance 14 are upwards swung a side ball-joint move upward, under the effect of negative pressure, drain valve 4 cuts out, and suction valve 2 is opened, and slurry pump is in the suction state.The drive balance 14 that moves up and down that oil hydraulic cylinder piston assembly 7 moves in circles is constantly done oscillating motion, the oscillating motion of balance 14 drives the rotation of inclined shaft 12 again, and then drive pump shaft 13 again and oil distributing shaft 8 rotates together, the oil-feed of seven oil hydraulic cylinders of change and fuel-displaced has also just realized the automatic reciprocating commutation of oil hydraulic cylinder piston assembly 7 and hydraulic cylinder piston assembly 5.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. a hydraulic pressure directly drives vertical multi-cylinder slurry pump, it is characterized in that: comprise suction casing (1), draining casing (3), oil-feed valve body (17), oil hydraulic cylinder casing (6), lowering or hoisting gear (9), oil-feed valve body (17), oil hydraulic cylinder casing (6), draining casing (3) adopt stacked structure to be successively set on suction casing (1) top and are connected with stud by the bolt that is provided with at circumferencial direction between the two arbitrarily, and the top of oil-feed valve body (17) is provided with balance casing (16); Balance (14) is set in the balance casing (16), inclined shaft (12) is fixed on balance (14) middle part by pair of bearings, the pump shaft (13) that is arranged on balance casing (16) center is connected with inclined shaft (12) by flat key, the oil distributing shaft (8) that is arranged on oil-feed valve body (17) central position is connected with pump shaft (13) by flat key, with pump shaft (13) is that the center is passed through piston shoes (10) in vertical shaft to the odd number oil hydraulic cylinder piston assembly of evenly arranging with one heart (7), ball pivot (11) and balance (14) ball-joint, piston shoes (10) are connected by the surface of locking nut with balance (14), the lower end of each oil hydraulic cylinder piston assembly (7) is all by steel ball (43), cutting ferrule (46) is connected with a hydraulic cylinder piston assembly (5), be provided with hydraulic cylinder piston body (47) between each oil hydraulic cylinder piston assembly (7) and the hydraulic cylinder piston assembly (5), polyurethane piston (48), each oil hydraulic cylinder piston assembly (7) is arranged in the oil hydraulic cylinder on the oil hydraulic cylinder casing (6), and each hydraulic cylinder piston assembly (5) is arranged on the draining casing (in the hydraulic cylinder on 3; The top of balance casing (16) is provided with transition cover plate (15), transition cover plate (15) is gone up the coaxial through-hole with oil hydraulic cylinder piston assembly (7) equal number of being provided with of axial circumference uniform distribution, the internal layer of transition cover plate (15) is provided with the annular pass, and the annular pass is communicated with fuel tank; Lowering or hoisting gear (9) comprises small gear I (19), gearwheel (20), small gear II (21), supporting base (22), lower roof plate (23), upper plate (24), studdle (25), three groups of strut assemblies (26), hand screw (27), handgrip (28), (22 are set on the outer wall of balance casing (16) supporting base, (22 pass through three groups of strut assemblies (26) is connected with draining casing (3) supporting base, three studdles (25) are set respectively on the circumference of supporting base (22), a hand screw (27), studdle (25), the top of hand screw (27) is provided with small gear II (21) respectively, small gear I (19), small gear I (19), small gear II (21) be arranged on supporting base (22) upper end and be set in gearwheel (20) engagement on the outer wall of balance casing (16), the upper end of studdle (25) is connected with lower roof plate (23) on the outer wall that is set in balance casing (16), studdle (25) is fixedlyed connected with lower roof plate (23) by nut, and the top of lower roof plate (23) is provided with the upper plate (24) that two semicircular ring constitute; The water intake of suction casing (1) is provided with suction joint (18).
2. hydraulic pressure according to claim 1 directly drives vertical multi-cylinder slurry pump, it is characterized in that: the quantity of described oil hydraulic cylinder piston assembly (7) is for more than or equal to five and smaller or equal to 13 odd number.
3. hydraulic pressure according to claim 1 and 2 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described hydraulic cylinder piston body (47) is connected with steel ball (43) by jump ring (45), spring (44), cutting ferrule (46).
4. hydraulic pressure according to claim 3 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described suction joint (18) is connected by the water intake of a pair of semicircle cutting ferrule with water inlet casing (1), and the corner position of suction joint (18) is higher than the position, water sucking mouth of suction valve (2).
5. hydraulic pressure according to claim 4 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described suction casing (1) is provided with the suction valve (2) identical with oil hydraulic cylinder piston assembly (7) quantity, and suction valve (2) is arranged on suction casing (1), and to go up with pump shaft (13) be the center in vertical shaft to one heart evenly in the suction hole of layout.
6. hydraulic pressure according to claim 5 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described draining casing (3) is provided with the drain valve (4) identical with oil hydraulic cylinder piston assembly (7) quantity, and drain valve (4) is arranged on draining casing (3), and to go up with pump shaft (13) be the center in vertical shaft to one heart evenly in the weep hole of layout.
7. hydraulic pressure according to claim 6 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described oil hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly (7), and being arranged on oil hydraulic cylinder casing (6), to go up with pump shaft (13) be the center in vertical shaft to one heart evenly in the sleeve port of layout.
8. hydraulic pressure according to claim 7 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described hydraulic cylinder quantity is identical with the quantity of oil hydraulic cylinder piston assembly (7), and being arranged on draining casing (3), to go up with pump shaft (13) be the center in vertical shaft to one heart evenly in the sleeve port of layout.
9. hydraulic pressure according to claim 8 directly drives vertical multi-cylinder slurry pump, it is characterized in that: described oil distributing shaft (8) adopts the dynamic balance structure of symmetry, oil distributing shaft (8) axially be provided with two spill ports (29) and two oil inlet holes (31), radial direction along oil distributing shaft (8) is provided with four layers of oil circuit, first layer is provided with annular oil-feed tank (30) and two oil inlet holes (31) at the periphery of oil distributing shaft (8), the second layer is provided with oil-feed compensating groove I (33), balance oil hole I (34), balancing oil groove I (35), the 3rd layer is provided with special-shaped distributing groove (38), join oily passage (39) for two, oil-return groove (36) and drainback passage (37) that shape is consistent with distributing groove (38), the 4th layer is provided with oil-feed compensating groove II (40), balance oil hole II (41), balancing oil groove II (42), high pressure oil is input to the annular oil-feed tank (30) of oil distributing shaft (8) via the oil circuit of oil-feed valve body (17), be input to oil inlet hole (31) through oil inlet passage (32) again, high pressure oil is input to oil-feed compensating groove I (33) successively by oil inlet hole (31), distributing groove (38), oil-feed compensating groove II (40), the hyperbaric chamber of oil distributing shaft (8) is communicated with the oil circuit of oil-feed valve body (17), after the oil circuit of the hyperbaric chamber of oil distributing shaft (8) and oil-feed valve body (17) disconnects, the low-pressure cavity of oil distributing shaft (8) is communicated with the oil circuit of oil-feed valve body (17), the high pressure oil that drives oil hydraulic cylinder piston assembly (7) motion is input to spill port (29) by oil-return groove (36) and drainback passage (37), high pressure oil is input to balancing oil groove I (35) successively by spill port (29), oil-return groove (36), balancing oil groove II (42), last high pressure oil is exported from spill port (29) top.
10. hydraulic pressure according to claim 9 directly drives vertical multi-cylinder slurry pump, it is characterized in that: the width of described oil-feed compensating groove I (33), balancing oil groove I (35), oil-feed compensating groove II (40) and balancing oil groove II (42) is 1/2nd of distributing groove (38) width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110122499 CN102168662B (en) | 2011-05-12 | 2011-05-12 | Hydraulic direct-drive vertical multi-cylinder mud pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110122499 CN102168662B (en) | 2011-05-12 | 2011-05-12 | Hydraulic direct-drive vertical multi-cylinder mud pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168662A true CN102168662A (en) | 2011-08-31 |
| CN102168662B CN102168662B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110122499 Active CN102168662B (en) | 2011-05-12 | 2011-05-12 | Hydraulic direct-drive vertical multi-cylinder mud pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832391A (en) * | 2015-04-01 | 2015-08-12 | 西南石油大学 | Vertical tri-cylinder reciprocating type borehole pump |
| CN107905973A (en) * | 2017-10-30 | 2018-04-13 | 华中科技大学 | A kind of compound compressor |
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
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| EP0562398A1 (en) * | 1992-03-21 | 1993-09-29 | Schwing GmbH | Pump for viscous material |
| CN1167878A (en) * | 1996-06-06 | 1997-12-17 | 周海威 | Straight shaft plunger mud pump |
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| DE102009008517A1 (en) * | 2009-02-11 | 2010-08-12 | Hudelmaier, Götz | Slurry pump i.e. concrete pump, has boost pressure device fitted at suction line to compress slurry, where medium flow is supplied to another medium flow for temporary reinforcement of former medium flow |
| CN201730780U (en) * | 2010-06-18 | 2011-02-02 | 宝鸡石油机械有限责任公司 | Hydraulically driven difunctional multi-cylinder slurry pump |
| CN202047956U (en) * | 2011-05-12 | 2011-11-23 | 中煤科工集团西安研究院 | Hydraulic direct drive vertical type multi-cylinder slurry pump |
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| JPS60201084A (en) * | 1984-03-26 | 1985-10-11 | Hatsushiyou:Kk | Pump for concrete |
| EP0562398A1 (en) * | 1992-03-21 | 1993-09-29 | Schwing GmbH | Pump for viscous material |
| CN1167878A (en) * | 1996-06-06 | 1997-12-17 | 周海威 | Straight shaft plunger mud pump |
| CN101210547A (en) * | 2006-12-27 | 2008-07-02 | 杜晓瑞 | Disc type multi-cylinder slurry pump |
| CN201277157Y (en) * | 2008-10-16 | 2009-07-22 | 施洋 | Oil cylinder direct driving type slush pump |
| DE102009008517A1 (en) * | 2009-02-11 | 2010-08-12 | Hudelmaier, Götz | Slurry pump i.e. concrete pump, has boost pressure device fitted at suction line to compress slurry, where medium flow is supplied to another medium flow for temporary reinforcement of former medium flow |
| CN201730780U (en) * | 2010-06-18 | 2011-02-02 | 宝鸡石油机械有限责任公司 | Hydraulically driven difunctional multi-cylinder slurry pump |
| CN202047956U (en) * | 2011-05-12 | 2011-11-23 | 中煤科工集团西安研究院 | Hydraulic direct drive vertical type multi-cylinder slurry pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832391A (en) * | 2015-04-01 | 2015-08-12 | 西南石油大学 | Vertical tri-cylinder reciprocating type borehole pump |
| CN107905973A (en) * | 2017-10-30 | 2018-04-13 | 华中科技大学 | A kind of compound compressor |
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
| CN109372823B (en) * | 2018-12-29 | 2020-05-05 | 王斌 | Internal circulation type hydraulic telescopic cylinder |
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|---|---|
| CN102168662B (en) | 2012-09-05 |
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