CN201696292U - Rotary cylinder piston liquid pump - Google Patents

Abstract

The utility model provides a rotary cylinder piston liquid pump with novel structure, which comprises a crankshaft, wherein the crankshaft is provided with two crank throws with an included angle of 180 DEG, and the crankshaft penetrates the center of the rotary cylinder serving as the crankcase; the crank shaft is eccentrically fixed on an end cover through a main bearing and the eccentric distance is equal to the throw distance; a rotary cylinder bearing, an oil seal case, a spindle bearing cover, a rear seal cover and a front end cover are sequentially fixed on the front and the rear end covers from inside to outside, the end covers are fixed at the two ends of a housing through spigots, and four sets of oil seals are mounted in the oil seal case, the rear end cover, the front end cover and the spindle bearing cover; the two crank throws on the crank shaft are connected with two pairs of piston systems through piston tiles, and the cylindrical rotary cylinder is fixed in the two end covers through the inner hole of the rotary cylinder bearing. The utility model not only has high single stage pressure amounting to 80 kg, high efficiency amounting to more than 80%, stable operation, and loose medium requirement, but also has a most remarkable advantage of 600mm/Hg vacuum-pumping capability, thereby being convenient for pumping liquid.

Description

Liquid pump of rotary cylinder piston

Technical field

The utility model belongs to a kind of liquid pump of mechanical engineering technical field, and a kind of new structure is carried the pump of liquid.

Background technique

There is following problem in present known pump, transfer efficiency simple in structure low (such as centrifugal pump), and efficient is between 40-66%.Efficient high pressure ratio little (such as screw pump), efficient reaches more than 80%, but the linear sealing structure, radial force has greatly, pressure ratio between 10-15, medium is required strict, all outstanding person's complex structure of efficient, pressure ratio, flow limited (such as plunger pump etc.).The utility model with a kind of new structure to solve the deficiency of said pump.

Summary of the invention

The utility model purpose provides a kind of liquid pump of rotary cylinder piston of new structure, this structure called after " two rotation of coordinate mechanical structure ".Utilize a kind of pump of this structural design, make this pump transfer efficiency higher, reach 83-90%.

Briefly, a kind of liquid pump of rotary cylinder piston, it has a bent axle, and two crank throws that are mutually 180 ° of layouts are arranged on the bent axle, and bent axle passes from the cylinder center of revolving of using as crankcase; Bent axle is fixed on the end cap by main bearing off-centre and throw of eccentric equals to turn distance; The rear and front end covers to be fixed with successively from inside to outside revolves cylinder bearing, oil sealing box, mainshaft bearing cap, rear seal-cover, front cover, and end cap is fixed on the shell two ends by seam, in oil sealing box, rear end cover, front cover and the main shaft shaft seal cover quadruplet oil sealing is housed; Two crank throws watt are connected one through piston and are rising and making two pairs of piston systems both do in the entire pump system along the linear reciprocating motion of piston hole track on the bent axle with two pairs of piston systems, stir simultaneously to revolve cylinder and make circular movement with revolving cylinder; The cylinder that revolves of column is fixed in the two end cap by revolving the cylinder brearing bore; Revolve cylinder upper edge rotary-inversion axis line direction and have the liquid storage discharge opeing chamber that orthogonal piston hole and piston system constitute this pump jointly.

Because the utility model crankshaft eccentric is installed on the two ends, the crank throw that its throw of eccentric equals bent axle turns distance; The crank throw center when making circular movement, crosses shell around crankshaft center, revolve the concentrically ringed center of circle such as cylinder; Crank throw drives piston system and move in a circle simultaneously that piston system does reciprocating linear motion in piston bushing, and promptly piston system is done " star rotation "; Revolve power that cylinder spacer etc. moves in a circle by the piston system transmission.

Specifically, the technical solution adopted in the utility model is: a kind of liquid pump of rotary cylinder piston main frame, by shell, shell lining, spacer, spacer lining, revolve cylinder, rotary cylinder piston hole lining, piston system, bent axle, end cap, capping, oil sealing system, balance sysmte, crankshaft Lubrication system etc. and constitute, crankshaft two end is separately fixed at the rear and front end by the front and back main shaft bearing and covers; The rear and front end lid is inboard fixedlys connected with the shell two ends by seam; The lid outside, rear and front end is equipped with oil sealing system and Weighting system respectively; Bent axle passes from the cylinder center hole that revolves that uses as crankcase, has two to be mutually 180 ° crank throw on the bent axle, and crank throw connects together with two pairs of piston systems respectively through bearing shell, has the oilhole that communicates with the main shaft oilhole on the crank throw; Revolving cylinder is column, inboard at the rear and front end lid by revolving the cylinder bearing fixing; Revolve cylinder spacer is housed outward; Revolve and have orthogonal two piston holes on the cylinder, lining is housed in the piston hole; Two pairs of pistons that are installed on the crankshaft crank are loaded in the piston hole respectively; The spacer internal diameter equates that with cylinder cylinder external diameter external diameter equates with internal diameter of outer cover and fixedly revolves on the cylinder; Be fixed with the spacer lining on the external diameter of spacer central part; Have the identical liquid port that advances that communicates and overlap on spacer and the spacer lining; Design has two release of pressure grooves on the spacer on spacer lining both sides; Shell is the two halves structure, has into liquid port on the upper half-shell, and inside has into apocenosis passage and release of pressure groove; Shell, spacer, revolve cylinder for one heart, crankshaft center and shell, spacer, revolve an off-centre is arranged between the cylinder, throw of eccentric equals the distance that turns of crank throw.

Bent axle passes from revolving the cylinder center hole, is fixed on the rear and front end by main shaft bearing and covers, and bent axle is equipped with the quadruplet oil sealing successively before the back, two cover piston systems, crankshaft front end connects with outer power, has the center oilhole on the bent axle, the center oilhole is opened always and is deep to two crank throws, and communicates with oil outlet on the crank throw; Two crank throws watt connect with two pairs of pistons by piston; Four piston heads of two pairs of pistons become 90 ° respectively, pack into to revolve in the piston hole on the cylinder; Revolve cylinder and revolve the cylinder bearing fixing in the two end cap inboard by two; Revolve and laterally have orthogonal two-piston hole on the cylinder; Stud with the piston hole lining in the piston hole; Revolve on the cylinder external diameter spacer is housed, the spacer core is equipped with the spacer lining; Have four areas on spacer and the spacer lining and equate into outage; Advancing outage communicates with the rotary cylinder piston hole; On the spacer of position, spacer lining both sides, have the release of pressure groove; End cap connects by seam and shell, and eccentric opening is fixed crankshaft eccentric by main shaft bearing on the end cap; Revolve the cylinder bearing inner race by intermediate support, it is concentric with shell to guarantee to revolve cylinder; Rear seal-cover is housed successively, oil sealing box, preceding capping on the end cap; Also designed the release of pressure groove with release of pressure groove corresponding position on the spacer; The piston system center watt is connected with the crank throw of bent axle by piston, and the two-piston head is adorned respectively in the piston hole that revolves cylinder; Be contained in the balance sysmte at two ends on the outer indoor bent axle of end cap, respectively two pairs of piston systems played balanced action.Revolve on the cylinder laterally that vertical design has two piston holes, the piston hole lining is housed in the piston hole.

Shell is the two halves structure, and the shell upper half shell designs the corresponding liquid port that advances, and into discharge opeing chamber is arranged on the shell, and the recessed band in shell middle part studs with the shell lining, designs sealing strip and isolation zone in length and breadth on the shell lining; It is to be installation shell lining and spacer lining leaving space that the design of shell center portion has recessed band, effect, and the hub plate cover two ends Position Design corresponding with release of pressure groove on the spacer has the release of pressure groove outside.

Structural feature of the present utility model: outer power drives piston system by bent axle and do the star rotation in piston hole, promptly drive when revolving cylinder and make circular movement together, piston system does reciprocating linear motion in piston hole, two pairs of piston holes that revolve on the cylinder are exactly liquid chamber, and when revolving cylinder and rotate to intake chamber's direction, descent of piston, liquid enter, when revolving cylinder and rotate to discharge opeing chamber direction, piston stroking upward is released piston hole to liquid to the discharge opeing chamber by force, and reciprocation cycle reaches the work purpose of liquid pump in proper order.In this structure, revolve the cylinder rotating speed and be half of speed of crankshaft, liquid delivery volume stroke is four times of piston reciprocating stroke, this relation is that weighing apparatus is fixed.

Operational advantages of the present utility model is except single stage of pressure height (can reach 80 kilograms), and efficient height (reaching more than 80%) operates steadily, medium require not strict outside, outstanding feature is to have the 600mm/Hg vacuum capability, for Liquid extracting provides convenience.The single-stage discharge pressure is higher, reaches about 80 kilograms, and is less demanding to fed sheet of a media, allows certain viscosity, certain impurity and certain temperature (below 100 ℃), the big 1m of feed flow ³-1500m ³/ h, structure is simpler.Be characterized in efficient height (more than 83%), single-stage pressure ratio height (can reach 80KG).

Description of drawings

Fig. 1-1,1-2,1-3,1-4,1-5 are the utility model working principle schematic representation:

Among Fig. 1-1: the discharge opeing of A chamber finishes to close, and the imbibition of B chamber finishes to close, and wherein the C point is the piston center, the D point position alignment of shafts, and the E point is for revolving the cylinder center;

Among Fig. 1-2: the discharge opeing of A chamber nearly finishes, and the imbibition of B chamber nearly finishes;

Among Fig. 1-3: the imbibition of A chamber begins, and the discharge opeing of B chamber begins;

Among Fig. 1-4: imbibition body in A chamber nearly finishes, and the discharge opeing of B chamber nearly finishes;

Among Fig. 1-5: the discharge opeing of A chamber begins, and the imbibition of B chamber begins;

Fig. 2-1 is the utility model structural representation.

Fig. 2-2 is Fig. 1 transverse sectional view.

Fig. 3-1 is the utility model end cover structure schematic representation, and Fig. 3-2 is Fig. 3-1 lateral plan.

Fig. 4-1 revolves the cylinder structure schematic representation for the utility model, and Fig. 4-2 is Fig. 4-1 lateral plan.

Fig. 5 is the utility model bent axle schematic representation.

Fig. 6-1 is the utility model spacer structure schematic representation; Fig. 6-2 is Fig. 6-1 lateral plan.

Fig. 7-1 is the utility model shell mechanism schematic representation; Fig. 7-2 lateral plan; Fig. 7-3 is the shell connection diagram.

Fig. 8-1 is the utility model shell lining schematic representation; Fig. 8-2 is Fig. 8-1 side view.

Fig. 9-1,9-2,9-3 are respectively three direction structure schematic representation of the utility model cylinder sleeve.

Figure 10-1, Figure 10-2 is the utility model spacer lining both direction structural representation.

Figure 11-1,11-2,11-3 are three direction schematic representation of the utility model piston system.

Figure 12-1,12-2 are the utility model balance sysmte both direction view.

Figure number explanation: 1-center oilhole, the 2-rear seal-cover, 3-oil sealing box, the 4-oil sealing, the 5-end cap, the 6-main shaft bearing, the 7-bent axle, the 8-piston system, 9-piston watt, 10-spacer lining, 11-shell lining, the 12-shell, 13-revolves cylinder, 14-revolves the cylinder bearing, the 15-main bearing cap, the 16-balance sysmte, beat lid before the 17-, the 18-liquid entering hole, 19 feed liquor plugs, the 20-piston bushing, the 21-piston ring, 22-enters the discharge opeing isolation zone, 23-discharge opeing chamber, 24 liquid ports, the 25-spacer advances liquid port, 26-crankcase oil drainage hole, 27-release of pressure groove, 28 spacers, first pump case of 29-, the 30-lower-half shell, the 31-fixed pedestal, the last lower-half shell locating stud of 32-, the last lower-half shell sealing strip of 33-, 34-liquid film seal band, 35-enters the discharge opeing isolation zone, the 36-piston ring groove.

Embodiment

Accompanying drawing 2-1 and Fig. 2-2 provided concrete principle of the present utility model and mode of execution, and other accompanying drawing has provided each modular construction schematic representation of the utility model simultaneously.

A kind of liquid pump of rotary cylinder piston main frame, it comprises rear seal-cover 2, oil sealing box 3, oil sealing 4, end cap 5, main shaft bearing 6, bent axle 7, piston system 8, piston watts 9, spacer lining 10, shell lining 11, shell 12, revolves cylinder 13, revolves cylinder bearing 14, main bearing cap 15, balance sysmte 16, preceding beating are covered 17, liquid entering hole 18, feed liquor plug 19, piston bushing 20, piston ring 21, entered discharge opeing isolation zone 22, discharge opeing chamber 23, liquid port 24, spacer and advance liquid port 25, crankcase oil drainage hole 26 release of pressure grooves 27, spacer 28; Bent axle 7 is by on the main bearing 6 eccentric fixedly end caps 5, and throw of eccentric equals to turn distance; The rear and front end covers to be fixed with successively from inside to outside revolves cylinder bearing 14, oil sealing box 3, mainshaft bearing cap 15, rear seal-cover 2, front cover 17, and end cap 5 is fixed on shell 12 two ends by seam, in oil sealing box 3, rear end cover 2, front cover 17 and the main shaft shaft seal cover quadruplet oil sealing 4 is housed; Bent axle 7 two ends are equipped with two cover balance sysmtes 16, two cover balance sysmtes 16 and are done fulcrum with main shaft bearing 6 separately respectively, to the crank throw of bent axle and the new system balancing of the common composition of piston system; Bent axle 7 passes from cylinder 13 centers of revolving of using as crankcase; Two crank throws that are mutually 180 ° of layouts are arranged on the bent axle 7, and crank throw is connected one through piston watts 9 with two pairs of piston systems 8 to be risen; Two pairs of piston systems 8 had both been done in the entire pump system along the linear reciprocating motion of piston hole track, stirred simultaneously to revolve cylinder 13 and make circular movement with revolving cylinder; The piston system that does reciprocating linear motion revolves cylinder inner carrier pore volume and plays liquid storage discharge opeing effect by changing repeatedly, moves in a circle to play to change flow direction and promote liquid to needs direction mobilization; Have piston watt 9 oilholes that communicate with alignment of shafts oilhole on the crank throw, by outside injection oil lubrication piston watt; The cylinder 13 that revolves of column is fixed in the two end cap 5 by revolving cylinder bearing 14 endoporus; Revolve cylinder 13 upper edge rotary-inversion axis line directions and have orthogonal piston hole, constitute the liquid storage discharge opeing chamber of this pump jointly with piston system; Dress piston hole lining 20 in the piston hole; The effect of piston hole lining 20 is that liquid pump extracts wearing and tearing in the impure liquid process and revolves piston hole on the cylinder, so also piston hole lining 20 can be installed at this liquid pump that extracts free from admixture liquid; Revolve on cylinder 13 external diameters spacer 28 is housed, the effect of spacer 28 is every the piston hole collar extension bore that contracts, and allows into discharge opeing by the path flow that designs; Spacer lining 10 is equipped with at spacer middle part, its effect be allow spacer lining 10 with revolve cylinder and rotate together with carrying liquid and contact, in the liquid impurity to the wearing and tearing of spacer lining 10 outer surfaces so that material selection and replacing; The both sides of spacer lining 10 have release of pressure groove 27 on the spacer, and release of pressure groove 27 is exactly two recessed bands of annular, and its effect is exactly when the micro-leakage of high pressure discharge opeing takes place, and allow high pressure liquid reduce pressure after external one-way valve flows into liquid entering hole through the release of pressure groove; Near revolving the cylinder center portion, have the identical shaped liquid port 25 that advances facing to the rotary cylinder piston hole on spacer and the spacer lining, its mouthful begins feed liquor during facing to intake chamber, and its mouthful begins discharge opeing during facing to the discharge opeing chamber; Shell 12 is the two halves structure, the first half in opposite directions 180 ° be furnished with liquid entering hole 18, liquid port 24, be furnished with arc intake chamber 19 in the liquid entering hole 18, the effect of intake chamber 19 is that liquid proceeds to the piston hole space that piston system is reserved when the descending piston hole on revolving cylinder of piston system rotates to intake chamber's 19 segmental arcs; The design of shell 12 center portions has recessed band, effect is for shell lining 11 and spacer lining 10 leaving spaces are installed, hub plate overlaps the 11 two ends Position Design corresponding with release of pressure groove on the spacer outside release of pressure groove 27, the release of pressure groove is except that leaking the release of pressure discharge opeing, uses the effect of pendular ring envelope Du leakage that leakage fluid forms under the rotary centrifugal force effect in addition; Shell lining 11 external diameters are set in the shell inner concave shape annular groove, and not only design has horizontal advance discharge opeing and isolate the arc band, and design prevent discharge opeing to the left and right both sides leakage fluid film phonograph seal band (see Fig. 8-1-8-3); The sealing strip intermediate portion communicates with shell discharge opeing chamber 19 becomes the part of feed liquor plug; Another part and shell row tuck in chamber 23 and communicate to become and arrange a part of tucking in the chamber in the middle of the sealing strip; The Lubricants of piston watt is that independently external system is supplied with, and enters from alignment of shafts oilhole 1 and discharges through watt gap by crankcase → revolve cylinder bearing play → discharge circulation from crankcase oil drain out 26; What specify is that Lubricants is to take different dosings according to different fed sheet of a media, purpose is that the fed sheet of a media leakage that prevents trace has been lubricated destruction to bearing shell, simultaneously Lubricants utilizes blind passage figure end on the outer casing inner wall to mark provides lubricated and seals oil film shell and spacer mate, prevents that the common gap of discharge opeing utilization into from entering other the system in the crankcase.

Its working procedure is: outer power drives bent axle 7 rotations, and the crank throw on the bent axle drives the piston rotation; Because piston head is limited in revolving in the piston hole on the cylinder, and decentraction, piston is stirred and is revolved in the cylinder rotation, for the piston hole on revolving cylinder, piston is continuous shift reciprocately in revolving cylinder, just piston is the center of circle with the crank throw center, do " star rotation " in the piston hole on revolving cylinder and not only do the circular movement while but also do reciprocating linear motion, we make liquid chamber with piston hole, when piston moves down, allow liquid enter piston and move down the space that stays, promptly allow into liquid port aim at intake chamber's feed liquor, when piston makes progress shape, allow into liquid port aim at the discharge opeing chamber, allow piston that the liquid that deposits in the piston hole is released, just finished the liquid conveying successively repeatedly.

Claims (10)

1. a liquid pump of rotary cylinder piston is characterized in that having a bent axle (7), and two crank throws that are mutually 180 ° of layouts are arranged on the bent axle (7), and bent axle (7) passes from cylinder (13) center of revolving of using as crankcase; Bent axle (7) is fixed on the end cap (5) by main bearing (6) off-centre and throw of eccentric equals to turn distance; Be fixed with successively from inside to outside on the rear and front end lid (5) and revolve cylinder bearing (14), oil sealing box (3), mainshaft bearing cap (15), rear seal-cover (2), front cover (17), and end cap (5) is fixed on shell (12) two ends by seam, in oil sealing box (3), rear end cover (2), front cover (17) and the main shaft shaft seal cover quadruplet oil sealing (4) is housed; Last two crank throws of bent axle (7) are connected one through piston watt (9) to be risen and is making two pairs of piston systems (8) both do in the entire pump system along the linear reciprocating motion of piston hole track with two pairs of piston systems (8), stirs simultaneously to revolve cylinder (13) and make circular movement with revolving cylinder; The cylinder (13) that revolves of column is fixed in the two end cap (5) by revolving cylinder bearing (14) endoporus; Revolve cylinder (13) upper edge rotary-inversion axis line direction and have the liquid storage discharge opeing chamber that orthogonal piston hole and piston system constitute this pump jointly.

2. liquid pump of rotary cylinder piston according to claim 1, feature is: bent axle (7) passes from revolving cylinder (13) center hole, be fixed on the rear and front end lid (5) by main shaft bearing (6), bent axle (7) is equipped with quadruplet oil sealing (4) successively before the back, two cover piston systems (8), bent axle (7) front end connects with outer power, has center oilhole (1) on the bent axle (7), the center oilhole is opened always and is deep to two crank throws, and communicates with oil outlet on the crank throw; Two crank throws connect with two pairs of pistons (8) by piston watt (9); Four piston heads of two pairs of pistons (8) become 90 ° respectively, pack into to revolve in the piston hole on the cylinder (13); Revolving cylinder (13) revolves cylinder bearing (14) by two and is fixed on two end cap (5) inboard; Revolve and laterally have orthogonal two-piston hole on the cylinder; Stud with piston hole lining (20) in the piston hole; Revolve spacer (28) is housed on the cylinder external diameter, the spacer core is equipped with spacer lining (10); Have four areas on spacer and the spacer lining and equate into outage (25); Advancing outage communicates with the rotary cylinder piston hole; On the spacer of position, spacer lining both sides, have release of pressure groove (27); End cap (5) connects by seam and shell, and end cap (5) is gone up eccentric opening and by main shaft bearing crankshaft eccentric fixed; Revolve the cylinder bearing inner race by intermediate support, it is concentric with shell to guarantee to revolve cylinder; Rear seal-cover (2) is housed successively, oil sealing box (3), preceding capping (17) on the end cap (5); Also designed the release of pressure groove with release of pressure groove corresponding position on the spacer; Piston system (8) center is connected with the crank throw of bent axle by piston watt (9), and the two-piston head is adorned respectively in the piston hole that revolves cylinder; Be contained in the balance sysmte at two ends on the outer indoor bent axle of end cap (5), respectively two pairs of piston systems played balanced action.

3. liquid pump of rotary cylinder piston according to claim 1 and 2, feature is: have center oilhole (1) and two ends on the bent axle (7) two cover balance sysmtes (16) are housed, two cover balance sysmtes (16) respectively with main shaft bearing (6) be fulcrum to the independent balancing of crank throw piston system (8), anterior-posterior balance system and front and back crank throw piston system be balance voluntarily respectively.

4. liquid pump of rotary cylinder piston according to claim 1 and 2 is characterized in that: revolving the last horizontal vertical design of cylinder (13) has two piston holes, and piston hole lining (20) is housed in the piston hole.

5. liquid pump of rotary cylinder piston according to claim 1 and 2 is characterized in that: revolve the cylinder peripheral hardware in respect of spacer (28), the spacer lining is housed on the spacer external diameter, offer the liquid port that advances of identical shaped size on spacer and the spacer lining facing to the piston hole liner mouth.

6. liquid pump of rotary cylinder piston according to claim 1 and 2 is characterized in that: spacer (28) and the design of shell (12) corresponding position have release of pressure groove (27), and release of pressure groove (27) is communicated with liquid entering hole by external one-way valve.

7. liquid pump of rotary cylinder piston according to claim 1 and 2, it is characterized in that: shell (12) is the two halves structure, shell upper half shell design is corresponding enters liquid port (18), (24), into discharge opeing chamber (19), (23) are arranged on the shell, the recessed band in shell middle part studs with shell lining (11), designs sealing strip and isolation zone in length and breadth on the shell lining (11); It is to be installation shell lining (11) and spacer lining (10) leaving space that the design of shell (12) center portion has recessed band, effect, and hub plate cover (11) the two ends Position Design corresponding with release of pressure groove on the spacer has release of pressure groove (27) outside.

8. liquid pump of rotary cylinder piston according to claim 1 and 2 is characterized in that having on the crank throw piston watt (9) oilhole of communicating with alignment of shafts oilhole and by outside injection oil lubrication piston watt.

9. liquid pump of rotary cylinder piston according to claim 1 and 2 is characterized in that shell lining (11) external diameter is set in the shell inner concave shape annular groove, is shaped on the horizontal discharge opeing of advancing and isolates the arc band, is equipped with and prevents discharge opeing both sides leakage fluid film phonograph seal band to the left and right; The sealing strip intermediate portion communicates with shell discharge opeing chamber (19) becomes the part of feed liquor plug; Another part and shell row tuck in chamber (23) and communicate to become and arrange a part of tucking in the chamber in the middle of the sealing strip.

10. liquid pump of rotary cylinder piston according to claim 1 and 2, the Lubricants that it is characterized in that piston watt is that independently external system is supplied with, and enters from alignment of shafts oilhole (1) and discharges through watt gap by crankcase → revolve cylinder bearing play → discharge circulation from crankcase oil drain out (26).

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