CN1529057A - Rotary piston type oil pump - Google Patents
Rotary piston type oil pump Download PDFInfo
- Publication number
- CN1529057A CN1529057A CNA2003101048141A CN200310104814A CN1529057A CN 1529057 A CN1529057 A CN 1529057A CN A2003101048141 A CNA2003101048141 A CN A2003101048141A CN 200310104814 A CN200310104814 A CN 200310104814A CN 1529057 A CN1529057 A CN 1529057A
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- China
- Prior art keywords
- rotor
- pump
- housing
- driven shaft
- driving shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention is a kind of revolution piston oil transfer pump, which includes the pump body, bearing box and the driving and driven shaft in the box for fixing the rotor and the synchronous gear, the rotor hub in the sealed circle is set at the input end with bearing, shaft sleeve, and pressing cover, there sets mechanism sealing device on the driving and driven shaft near to the rotor hub in the bearing box, the toggled synchronous gears are fixed on the ends of the driving and driven shaft supported by the right and left bearing in the box, each rotor has at least three blades, which are fixed on the outer circle of the blade in stagger. It overcomes the deficiency of big noise, pressure fluctuation, and pump vibration caused by big pulse, inconvenient disassembling and maintenance. The structure is reasonable, the media carried is even, the pressure is stable, the pulse is small, it prolongs the life span.
Description
Technical field
The present invention relates to a kind of volume type rotor pump, particularly a kind of rotary-piston type oil transfer pump that is applicable to Handling Viscous Medium.It is applicable to industries such as oil, chemical industry, food, cosmetics, pharmacy, synthetic resin, as feeding, multiple material, quantitatively carry and mix conveying.
Background technique
At present, carry the displacement pump of various media accurate, self-priming performance good because of its flow, thus be widely used, as gear pump, sliding vane pump, screw pump etc.But these pumps are subjected to the influence of factors such as fed sheet of a media viscosity, and versatility is relatively poor.
The inventor had once designed a kind of " outside circulation rotor thick oil pump " (patent No. is 00252479.1) at the problems referred to above, it adopts affixed all-in-one-piece valve body, the pump housing, bearing housing and assembles its interior rotor and driving mechanism, wherein install respectively on the driving shaft, driven shaft of rotor intermeshing synchromesh gear is arranged, the wheel blade excircle of two rotors is interspersed, and pump housing cylindrical cavity wall surface is identical respectively with separately, a rotor wheel blade excircle and another rotor wall surface match, and the import and export of the pump housing and the passage of pressure control device join.This device has overcome shortcomings such as low, versatility difference of the easily damaged parts life-span that prior art exists preferably, has widened the application area of pump, it operates steadily, safe and reliable, noise is little, flow is big, obviously improves the working life of pump efficiency and pump.But carrying continuously in the practical application of sticky material medium, finding also to have certain problem: promptly having sludge to exist in this pump impeller hub; With the axle head gland install the driving shaft of rotor, the support of driven shaft is cantilevered structure, be easy to make damage of bearings near rotor-side, its seal arrangement and bearing are assembled between the pump housing and the bearing housing with axle sleeve, thrust bearing, locking nut, and the loading and unloading of seal arrangement and bearing are difficulty; Intermeshing synchromesh gear is positioned at the close input shaft end of bearing housing on driving shaft, the driven shaft, dismounting, maintenance inconvenience.The outside circulation rotor thick oil pump of above-mentioned conveying sticky material medium, after moving certain hour continuously, its flow, pressure and other parameters descend to some extent, and pump noise and pulse increase to some extent, pressure surge and pulse cause the vibration of pump greatly.This main cause just is that pump structure design and the distribution of rotor on axle etc. are reasonable not enough.
The close structure of a kind of and above-mentioned working principle is disclosed in the Chinese patent " reversible drawing liquid machine " (patent No. is 92209406.3), it is that a pair of active wheel that work tooth and teeth groove radially are set is installed in the pump housing, work tooth and teeth groove are by the cooperation of the engaging tooth on two active wheels contraposition, and the work cavity volume that produces when rotating by two active wheels changes realization liquid and extracts out continuously.Its structural distribution and usability are different fully with above-mentioned thick oil pump.
A kind of rotor that is applicable to vacuum pump, blower and liquid delivery pump is disclosed in the Chinese patent " FLUID TRANSPORTATION pump rotor " (patent No. is 94228516.6), its a pair of rotor is packed in axle respectively and goes up, also is configured in respectively in the casing separately, and the meshing engagement structure of a pair of rotor is with the mesh form of peak-shaped curve for its conjugate curve.
Disclose a kind of " engine with revolving cylinders " among the Japan Patent JP4094423, it can not be used as pump, and its rotor is two leaf cammingly structures, and driving gear is non-circular.During work, the motion of two rotors is radially carried out, and two rotor inlines are on a transmission shaft.
Disclose a kind of " rotating cylinder type compressor " among the Japan Patent JP59208101, it can not be used as pump, and its rotor is two leaf cammingly structures, and the gear teeth that rotate with inserted blade are less than 1/4 cylindrical piston, single shaft, no driving gear.
Disclose a kind of oil hydraulic pump among the European patent WO116465, it is a gear pump that has driven shaft.This pump has one group of gear train that comprises driven gear, the follower gear engagement on driven gear and the follower gear axle.In addition, this pump also is provided with directional control valve and reflux valve.Through the domestic and foreign literature retrieval, do not see the report identical with technical solution of the present invention.
Summary of the invention
The purpose of this invention is to provide a kind of rotary-piston type oil transfer pump, defectives such as the pump vibration that it overcomes effectively that the running noises that exists in the prior art is big, pressure surge and pulse cause greatly, dismounting, maintenance inconvenience, it is reasonable to have structural distribution, the fed sheet of a media flow evenly, pressure stability, pulse be little, significant prolongation working life, install, dismantle advantages such as easy, easy to maintenance.
The object of the present invention is achieved like this: this device comprises the pump housing, bearing housing and assemble the driving shaft that installs rotor and intermeshing synchromesh gear respectively in it, driven shaft, its technological points is: the rotor hub of built-in seal ring utilizes spring bearing, axle sleeve and gland are assembled in the input end of driving shaft and driven shaft, the driving shaft of close rotor hub one side in bearing housing, difference assembly mechanical seal arrangement on the driven shaft, intermeshing synchromesh gear is packed in a gear-box left side respectively, the driving shaft that right bearing supports, driven shaft is not held, the wheel blade of each rotor has three leaves at least, be packed in driving shaft respectively, the wheel blade excircle of two rotors on the driven shaft is interspersed, and matches with pump housing cylindrical cavity wall surface respectively.
The disk friction gear of being made up of conical friction, conical friction ring, housing, tension spring and spring seat thereof is set between above-mentioned driving shaft input end and the motor shaft end, the motor of axle head assembling conical friction utilizes bearings on housing, housing is assembled on the pump housing by regulating bolt, and along regulating axially moving back and forth of bolt.
The passage of above-mentioned pump housing upper channel and one-way relief valves joins.
The insulation jacket that communicates with thermal medium is set on the valve body of above-mentioned one-way relief valves.
The passage of above-mentioned pump housing upper channel and bidirectional relief valve joins.
The insulation jacket that communicates with thermal medium is set on the valve body of above-mentioned bidirectional relief valve.
Problems such as the running noises that exists in the prior art is big because the present invention is primarily aimed at, dismounting, maintenance inconvenience design, so it can overcome the above-mentioned problems that exist in the prior art effectively, defectives such as the pump vibration that, pressure surge big as running noises and pulse are big etc. causes, dismounting, maintenance inconvenience.Its major measure of taking is embodied in following several respects:
At first, this device adopts and compares with crank drive, have the synchromesh gear that vibration is little, noise is low and drive driving shaft, driven shaft rotation, and utilize bearing pack to be contained in the input end of driving shaft, driven shaft rotor, intermeshing synchromesh gear is packed in driving shaft, the driven shaft of the left and right bearings of gear-box respectively and does not hold, make its structural distribution more reasonable, two fulcrum spring bearings of driving shaft, driven shaft are stressed evenly, the single fulcrum spring bearing of cantilever type that has fundamentally changed driving shaft, driven shaft is stressed irregular, flimsy disadvantage.It can not only further adapt to the needs of carrying the high pressure medium, and operation is more stable, improves the working life of bearing, obviously reduces its maintenance cost and maintenance load.
Secondly, be packed in the master, rotor on the driven shaft is also different with the rotor of other transfer pump, each rotor has three wheel blades at least, and two rotor excircle wheel blades are interspersed, not directly engagement contact during operation, but match with the cylindrical cavity of the pump housing separately wall surface that its excircle matches respectively, and match with partition curved surface on another rotor wall by rotor wheel blade excircle, form the continuous generating period variation of volume of the endoceliac active chamber of pump, it is even to guarantee to be transferred rate-of flow, pressure stability ground sucks continuously and discharges, finish the conveying task, thus the difficult problem that pressure surge that produces when solving a leaf or two leaf rotor operations effectively and pulse increase.The wheel blade of rotor used by same is many more, makes that fed sheet of a media pressure is stable more, pulse is more little, and the effect that reduces the pump vibration is outstanding more, but the working life of significant prolongation pump.Consider that from the angle of economy generally speaking, the wheel blade of rotor is advisable with 3～5 leaves.
In addition, difference assembly mechanical seal arrangement on the driving shaft of close rotor hub one side, the driven shaft in bearing housing, intermeshing synchromesh gear is packed in driving shaft, the driven shaft of the left and right bearings of gear-box respectively and does not hold, this both can strengthen the sealing effect of shutoff fed sheet of a media, can carry out loading, unloading to spring bearing and mechanical seal device easily again, help the installation and maintenance operation, overcome effectively in the prior art inconvenient defective is dismantled, keeped in repair to spring bearing and mechanical seal device.
For the rotating speed of the power input shaft that makes pump can be adjusted, change the flow of pump, the disk friction gear of being made up of conical friction, conical friction ring, housing, tension spring and spring seat thereof is set between the driving shaft input end of this device and motor shaft end, be assembled in adjusting bolt on the pump housing by adjusting its housing, with housing axially moving back and forth along the adjusting bolt, make conical friction be close to the conical friction ring at the different radii place, reduce or improve the rotating speed of pump, change the flow of pump.
For guaranteeing pump in smooth running, the passage of pump housing upper channel and unidirectional or bidirectional relief valve is joined, according to actual usage requirement the working pressure of pump is adjusted, with the work of guaranteeing that pump is safe and reliable.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is a kind of I type structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is a kind of II type structural representation of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is a kind of concrete structure schematic representation of three lobe rotor.
Fig. 6 is a kind of concrete structure schematic representation of four leaf rotors.
Fig. 7 is a kind of concrete structure schematic representation of five leaf rotors.
Embodiment
Describe concrete structure of the present invention and working procedure in detail according to Fig. 1～7.The present invention can make the not II type structure (as shown in Figure 2, its rotor is three leaves) of the I type structure of speed change (as shown in Figure 1, its rotor is four leaves) and variable speed according to usage requirement.This device comprises the pump housing 1, bearing housing 6, gear housing 7 and assembles parts such as its interior driving shaft 10 that installs rotor 2 and intermeshing synchromesh gear 8 respectively, driven shaft 12.Its middle pump body 1 and flow passage components etc. be transferred the contacted parts of medium, should determine the material (as cast iron, carbon steel, stainless steel etc.), the seal form (conventional seals, mechanical seal, sylphon seal etc.) that adopt according to operating modes such as the temperature of medium, pressure, viscosity, corrosivity.Rotor 2 wheel hubs of built-in seal ring 4 utilize spring bearing 3, axle sleeve and gland to be assembled in the input end of driving shaft 10.Difference assembly mechanical seal arrangement 5 on the driving shaft 10 of close rotor 2 wheel hubs one side, the driven shaft 12 in bearing housing 6.Intermeshing synchromesh gear 8 is packed in driving shaft 10, the driven shaft 12 of gear-box 7 left and right bearings 9 supports respectively and does not hold.Above-mentioned unique texture can guarantee the continuity of fed sheet of a media, the stability of working pressure and the noise of reduction pump etc.
The wheel blade that this device is packed in each rotor 2 on driving shaft 10, the driven shaft 12 respectively has three leaves at least.Can select four leaves, five leaves or leafy rotor 2 as required for use.The gabarit of wheel blade working surface is shaped as the conjugation circular arc, and the wheel blade excircle of two rotors 2 is interspersed, and does not promptly mesh contact each other.Each wheel blade excircle matches with the pump housing 1 cylindrical cavity wall surface respectively.Partition curved surface on one of them rotor 2 wheel blade excircle and another rotor 2 walls matches.The matching surface that utilization matches plays a part separate pump low pressure suction chamber and high pressure discharge side in the pump housing 1.Rotor constantly rotates, and makes the continuous generating period variation of volume of active chamber, thereby fluid is constantly sucked and discharges, and finishes whole suction process.Above a pair of intermeshing synchromesh gear 8 of gear-box 7, lubricating cup is set, be used for this independently lubricated synchromesh gear 6 is lubricated.
Because the viscosity height of fed sheet of a media, therefore, the rotating ratio of operation is lower.For the rotating speed of the power input shaft that makes pump can be adjusted, change the flow of pump, this device can be provided with the disk friction gear of being made up of conical friction 24, conical friction ring 23, housing 18, tension spring 22 and spring seat 21 thereof (as shown in Figure 3) between driving shaft 10 input ends and motor 27 axle heads.The motor 26 of axle head assembling conical friction 24 utilizes bearing 25 to be supported on the housing 18, and housing 18 is assembled on the pump housing 1 by adjusting bolt 20, nut 19, and can be along regulating axially moving back and forth of bolt 20.When need regulating rotor 2 rotating speeds, rotating nut 19 drives regulates bolts 20, and housing 18 moving up and down is moved with respect to the fixed pump housing 1, thereby makes the very big conical friction of cone angle 24 be close to friction ring 23 at the different radii place.Like this, when power input shaft rotated with constant speed, the pto of gear just can be according to the needs of fed sheet of a media, with different rotational speed.This disk friction gear can directly be assemblied on the pump, also can decompose assembling with pump.
Being provided with the pump housing 1 upper channel of inlet/outlet and the passage of safety valve joins.Safety valve comprises parts such as valve body 13, valve seat 27, spool 14, cluster spring 15, pressure adjustment screw rod 16, protective hat 17.Wherein the spool 14 of safety valve utilizes cluster spring 15 and adjusts screw rod 16 and is assembled on the valve seat 27.Valve body 13 inner chambers are separated into two chambeies by spool 14, and utilize passage that two chambeies are connected with the inlet/outlet of the pump housing 1 respectively, and at any time pumping pressure is adjusted, the assurance pump is worked safely and reliably.This safety valve can be arranged to one-way relief valves (as shown in Figure 2) and two kinds of structural types of bidirectional relief valve (as shown in Figure 4).Bidirectional relief valve promptly adopts two spools and matching parts thereof.Working principle and one-way relief valves are basic identical.In the single, double insulation jacket (not shown) that communicates with thermal medium that on the valve body of safety valve, can also be provided with, and in insulation jacket, feed thermal medium (as deep fat, hot steam etc.) by connection nipple.When the pump housing is worked, import thermal medium and can reduce solidifying and bond in the pump housing such as sticky material medium.Safeguard, dismantle mechanical seal device 5 if desired, gear-box 7 and synchromesh gear 8, bearing 9 can be dismantled, so just can keep in repair easily.One-way relief valves can only one-way only operation, and bidirectional relief valve then can two-way adjustment pressure.Adopt the purpose of bidirectional relief valve to be, guarantee that the rotary-piston type oil transfer pump can the forward and backward running.
Claims (6)
1, a kind of rotary-piston type oil transfer pump, comprise the pump housing, bearing housing and assemble the driving shaft that installs rotor and intermeshing synchromesh gear respectively in it, driven shaft, it is characterized in that: the rotor hub of built-in seal ring utilizes spring bearing, axle sleeve and gland are assembled in the input end of driving shaft and driven shaft, the driving shaft of close rotor hub one side in bearing housing, difference assembly mechanical seal arrangement on the driven shaft, intermeshing synchromesh gear is packed in a gear-box left side respectively, the driving shaft that right bearing supports, driven shaft is not held, the wheel blade of each rotor has three leaves at least, be packed in driving shaft respectively, the wheel blade excircle of two rotors on the driven shaft is interspersed, and matches with pump housing cylindrical cavity wall surface respectively.
2, rotary-piston type oil transfer pump according to claim 1, it is characterized in that: the disk friction gear of being made up of conical friction, conical friction ring, housing, tension spring and spring seat thereof is set between driving shaft input end and the motor shaft end, the motor of axle head assembling conical friction utilizes bearings on housing, housing is assembled on the pump housing by regulating bolt, and along regulating axially moving back and forth of bolt.
3, rotary-piston type oil transfer pump according to claim 1 and 2, it is characterized in that: the passage of pump housing upper channel and one-way relief valves joins.
4, rotary-piston type oil transfer pump according to claim 3 is characterized in that: the insulation jacket that communicates with thermal medium is set on the valve body of one-way relief valves.
5, rotary-piston type oil transfer pump according to claim 1 and 2, it is characterized in that: the passage of pump housing upper channel and bidirectional relief valve joins.
6, rotary-piston type oil transfer pump according to claim 5 is characterized in that: the insulation jacket that communicates with thermal medium is set on the valve body of bidirectional relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101048141A CN100535444C (en) | 2003-10-10 | 2003-10-10 | Rotary piston type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101048141A CN100535444C (en) | 2003-10-10 | 2003-10-10 | Rotary piston type oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1529057A true CN1529057A (en) | 2004-09-15 |
| CN100535444C CN100535444C (en) | 2009-09-02 |
Family
ID=34304271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101048141A Expired - Fee Related CN100535444C (en) | 2003-10-10 | 2003-10-10 | Rotary piston type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100535444C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011727B (en) * | 2009-09-09 | 2012-12-12 | 哈尔滨建成集团有限公司 | Circulating thick oil pump |
| CN103541897A (en) * | 2013-09-27 | 2014-01-29 | 陈宝琛 | Outside-box supported rotary piston pump |
| CN103603800A (en) * | 2013-11-18 | 2014-02-26 | 孙忠海 | Numerical control mixed transportation pump with simplified function |
| CN106321424A (en) * | 2016-11-17 | 2017-01-11 | 孔栾玲 | Double-curved surface two-stage oil delivery pump |
| CN112551473A (en) * | 2020-12-28 | 2021-03-26 | 牡丹江师范学院 | Oil discharge scavenging bin pumping device |
-
2003
- 2003-10-10 CN CNB2003101048141A patent/CN100535444C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011727B (en) * | 2009-09-09 | 2012-12-12 | 哈尔滨建成集团有限公司 | Circulating thick oil pump |
| CN103541897A (en) * | 2013-09-27 | 2014-01-29 | 陈宝琛 | Outside-box supported rotary piston pump |
| CN103603800A (en) * | 2013-11-18 | 2014-02-26 | 孙忠海 | Numerical control mixed transportation pump with simplified function |
| CN103603800B (en) * | 2013-11-18 | 2018-06-05 | 孙忠海 | A kind of numerical control mixing pump of simplified function |
| CN106321424A (en) * | 2016-11-17 | 2017-01-11 | 孔栾玲 | Double-curved surface two-stage oil delivery pump |
| CN112551473A (en) * | 2020-12-28 | 2021-03-26 | 牡丹江师范学院 | Oil discharge scavenging bin pumping device |
| CN112551473B (en) * | 2020-12-28 | 2023-05-09 | 牡丹江师范学院 | Unloading oil sweeping and pumping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100535444C (en) | 2009-09-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20111010 |