CN105736359A - Interval-adjustable two-screw pump - Google Patents
Interval-adjustable two-screw pump Download PDFInfo
- Publication number
- CN105736359A CN105736359A CN201610107811.0A CN201610107811A CN105736359A CN 105736359 A CN105736359 A CN 105736359A CN 201610107811 A CN201610107811 A CN 201610107811A CN 105736359 A CN105736359 A CN 105736359A
- Authority
- CN
- China
- Prior art keywords
- pump
- screw rod
- screw
- driving screw
- plain bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an interval-adjustable two-screw pump. The interval-adjustable two-screw pump not only comprises components of a common two-screw pump, but also comprises a replaceable pump body internal lining, a pump front cover plate matched with the internal lining, a screw sliding bearing seat capable of being machined, a replaceable driving wheel and a replaceable driven wheel. Compared with the common two-screw pump, only by replacing the replaceable internal lining in a pump body, the pump front cover plate, the driving wheel and the driven wheel, slightly machining the surface of the sliding bearing seat, and reducing the central distance between two screws through mutual pressing of the two screws, are the leakage of the pump caused by abrasion to the screws and the pump lining and caused loss on the performance aspect reduced, so that the service life of the interval-adjustable two-screw pump is prolonged, and the maintenance cost of the interval-adjustable two-screw pump is lowered.
Description
Technical field
The invention belongs to mechanical field, particularly a kind of processing by part and changing thus distance between adjusting screw rod is thus a kind of gap scalable Quimby pump of increasing the service life.
Background technology
Quimby pump is as a kind of widely used positive displacement pump, and the annular seal space volume that it is dependent on being formed by two intermeshing screw rods and pump housing inwall changes carries material.The features such as Quimby pump has nothing stirring, pulse free, the steadily various media of output, mechanical vibration are little, noise is low.Owing to having pumping liquid in the operation element of pump body structure guarantee pump all the time as sealing liquid, therefore there is very strong self-priming performance, and be usually used in multi-phase mixed delivering.Such as can carry oils, water, paste, milk, Colophonium and some other chemical medium etc..
Due to screw pump operation principle, the inside of pump must be broken into some annular seal spaces being isolated from each other, and suction inlet and outlet so just can be made effectively to separate.Then, screw pump need to meet with seal performance condition: the path of contact of (1) intermeshing principal and subordinate screw rod is wanted helicla flute can be divided into not connected closed cavity.(2) sealing is ensured between the homonymy adjacent grooves of single screw rod.In the course of the work, the generation friction between material and master and slave screw rod and pump housing lining, screw rod and lining work surface gradually wear out screw pump, and screw diameter constantly reduces and lining aperture is gradually increased.So, the gap between screw rod and screw rod and between screw rod and lining expands gradually, this adds increased material from leakage amount, so that pump performance reduces.Due to Quimby pump structure for other kinds of screw pump more complicated, price is slightly higher, and multi-phase mixed delivering as conveying water-containing sludge time, it is easy to cause end wear.And maintenance cost is huge, once serious wear, it is necessary to change whole to screw rod and whole lining.Consider from saving into present aspect, for solving the problems referred to above, it is necessary to design the screw pump of a kind of advanced person, to overcome defect described in prior art.
Summary of the invention
It is contemplated that propose a kind of to change screw rod and whole lining just can guarantee that screw pump working life and reduces a kind of Quimby pump of screw pump maintenance cost, only need to change removable inner liner and pump front shroud in the pump housing and principal and subordinate wheel is replaced and small processing to sliding bearing seating face, by the mutual compression of two screw rods, reduce the leakage of pump that the method for two screw rods centre-to-centre spacing brings and the loss of the aspect of performance caused with the abrasion reducing screw rod and pump bushing, thus extending its service life and reducing its maintenance cost.
In order to achieve the above object, technical scheme is as follows:
A kind of gap scalable Quimby pump, including the pump housing, the inner liner of pump body, driving screw, from screw rod, pump front shroud that pump housing one end sets gradually, driving screw front slide bearing block, from screw rod front slide bearing block；Plain bearing housing after the driving screw that the pump housing other end sets gradually, from plain bearing housing, drivewheel, driven pulley after screw rod；
Described driving screw sequentially passes through plain bearing housing after drivewheel, driving screw, inner liner, driving screw front slide bearing block, pump front shroud and machine seal structure；Described from screw rod sequentially pass through driven pulley, from plain bearing housing after screw rod, inner liner, from screw rod front slide bearing block；
Described drivewheel, driven pulley are meshed and replaceable；Described inner liner is cylinder, internal in " 8 " font hollow structure, can hold driving screw, from screw rod；According to driving screw, from the difference of the degree of wear of screw rod and pumped (conveying) medium, the inner liner of replaceable different pore size and unlike material；Additionally, corresponding processing driving screw front slide bearing block and from screw rod front slide bearing block, and plain bearing housing and from the shape of plain bearing housing after screw rod after driving screw so that the shape of plain bearing housing is " 8 " font structure by front and back two；When screw rod weares and teares, only need to according to wear extent machining two to plain bearing housing contact portion so that plain bearing housing matches with the inner liner of new replacing.
Further, described driving screw front slide bearing block, it is embedded in inner liner front end from screw rod front slide bearing block, and inner liner, the pump housing are connected with driving screw front slide bearing block lower end pin；Additionally, plain bearing housing after described driving screw, be embedded in inner liner rear end from plain bearing housing after screw rod, inner liner, the pump housing be connected with plain bearing housing pin after screw rod make inner liner ensure axially and radially position is fixed.
Further, shaft shoulder place, described driving screw rear end is cased with drivewheel, driving screw stop washer, driving screw round nut successively, is connected with key, it is ensured that it is radially fixed, and screws with driving screw round nut, it is ensured that drivewheel axial restraint between driving screw and drivewheel；Described be cased with driven pulley successively from the shaft shoulder of spiro rod rear end, from screw rod stop washer, from screw rod round nut, be connected between screw rod and driven pulley with key, it is ensured that it is radially fixed, and screws with from screw rod round nut, it is ensured that driven pulley axial restraint.
Further, described pump front shroud has endoporus, described driving screw this endoporus of traverse, owing to the interior hole site of pump front shroud is relevant with driving screw position and centre-to-centre spacing, described pump front shroud is replaceable, and the pump front shroud that namely inner liner of different pore size also needs a kind of interior hole site supporting with it is corresponding.
Further, described machine seal structure is connected with pump front shroud by hex bolts, and machine seal structure is without changing；Including bearing block, machine envelope seat and machine capping.
Further, described driving screw front slide bearing block and from screw rod front slide bearing block, and plain bearing housing and need to be processed as annular indentation face from two plain bearing housing contact portions of plain bearing housing after screw rod after driving screw, annular indentation face fits so that forward and backward two plain bearing housings respectively in " 8 " font structure.
In general, the present invention, except conventional Quimby pump has the advantage that, also has the advantage that
This Quimby pump gap scalable, except the conventional due structure of Quimby pump, also includes the supporting pump front shroud of removable pump body lining, this inner liner and machinable screw slide bearing block and removable driven wheel.Compared with common double screw pump, it is driving screw due to what the present invention adopted and ensures that screw rod extends service life from compressing between screw rod, it is not necessary to change the whole outer liner to screw rod and pump, saved maintenance cost.
Described pump body lining: the external shape of inner liner is cylindrical shell, shell inner hole be shaped as the shape being similar to " 8 " word after engaging with principal and subordinate's screw rod, housing and driving screw front slide bearing block, it is respectively arranged with a pin hole from the contact surface of plain bearing housing after screw rod, two pins are 180 degree and are distributed in annulus both sides, it is ensured that the radial direction of inner liner and axially stable.Compared with classic screw pump, the lining in this present invention, once abrasion, only need to change inner liner.And inner liner simple in construction, consumed material also greatly reduces than general lining, saves technological process, reduces maintenance cost.The present invention not only can produce the inner liner of different size and the pump cover of correspondence by the different designs of wear extent, can also produce the lining of different materials to realize the screw pump conveying to different medium, significantly widen its purposes.
Removable supporting pump front cover structure aspect: supporting pump front shroud is identical with former pump front cover structure, but slightly distinguishes with former pump front shroud: the position of the screwed hole being connected that (1) covers with machine must change according to the change in the aperture of inner liner.(2) on pump cover, the position in hole also must change according to the change in inner liner aperture.Described pump front shroud is folded between machine envelope seat and the pump housing, and coordinates hexagon-headed bolt to be fixed on the pump housing.
Screw slide bearing block is made up of two parts of plain bearing housing after a pair front slide bearing block and a pair.Pair of sliding bearing block is divided into for two parts of master and slave plain bearing housing.Plain bearing housing adapted correspondence sliding bearing, becomes matched in clearance with screw shaft.Adopt plain bearing housing, it is possible to allow to carry various nonlubricious media, the axial force of the overwhelming majority can be offset simultaneously.Its oilless bearing without oil lubrication adopted can improve bearing load carrying capacity, and make screw pump drop few vibration, reduce noise, prevent from polluting and improving working conditions.Intensity of variation according to centre-to-centre spacing, corresponding can process two to plain bearing housing.Former plain bearing housing is shaped as two " 8 " fonts similar to screw rod jogged shape being put together through the circular whole slide bearing block of machining.Driving screw, only need to processing the contact surface of two bearings seat from screw rod slide anteroposterior bearing block, its scrap rate is only small, the smooth easy processing of machined surface, only need to be processed into plane, and processing mode is simple.
Driven wheel is a pair intermeshing synchromesh gear, and rotatable parts are not in contact with each other, and service life is protected.The corresponding respectively screw rod of two gears is connected, to ensure its radial position, to control its axial location by the shaft shoulder and two pairs of round nuts and supporting stop washer by key.Change supporting drivewheel, driven pulley is very convenient, be greatly saved maintenance time and expense.
Owing to described inner liner " 8 " word hole machined shape should be relevant with two screw rods axle centre-to-centre spacing.Can according to the shape in " 8 " word hole when calculating a series of different centre-to-centre spacing, namely according to the different derivative a series of auxiliary products of centre-to-centre spacing design.Present configuration is simple, easy accessibility, and accessory all can design standard.Because pump cover and lining are all cast member, produce in batches after mold, both saved production cost, also can need in order to maintenance by a series of kit of production inventory, can change the very first time when ensure that maintenance, greatly reduce pump maintenance time, it is ensured that timely using of pump.
Owing to the interior hole site of the pump front shroud of supporting replacing is relevant with driving screw position and centre-to-centre spacing, namely the pump front shroud that the inner liner of different pore size also needs a kind of interior hole site supporting with it is corresponding, so pump front shroud also needs according to different centre-to-centre spacing individually designed, according to different centre-to-centre spacing, design a series of supporting pump front shroud with corresponding so that the maintenance instruction of pump, standardization.After pump front shroud is changed, because the cover plate after changing only changes eccentric throw, do not change size and the distribution in hole, therefore the machine seal structure being connected with former front shroud need not be changed, be greatly saved material.And former front shroud is also recyclable after changing, the pump for other same models is continuing with.
Accompanying drawing explanation
Fig. 1 is gap scalable Quimby pump installation diagram
Fig. 2 is plain bearing housing structure chart
Fig. 3 is the schematic diagram of pump front shroud
Fig. 4 is the schematic diagram that the pump housing coordinates with inner liner
In figure: 1-pump front shroud, 2-is from screw rod front slide bearing block, 3-driving screw front slide bearing block, 4-driving screw, 5-is from screw rod, the 6-pump housing, 7-driven pulley, 8-drivewheel, 9-back-up ring, 10-is from screw rod stop washer, 11-is from screw rod round nut, 12-driving screw stop washer, 13-driving screw round nut, 14-is from plain bearing housing after screw rod, plain bearing housing after 15--driving screw, 16-pin a, 17-inner liner, 18-pin b, 19-screwed hole a, 20-screwed hole b, 21-screwed hole c, 22-bearing block, 23-machine envelope seat, 24-machine covers, 25-two plain bearing housing contact portion, 26-processes hole 1, 27-processes hole 2, 28-processes hole 3.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
Fig. 1 is Quimby pump assembling schematic diagram.This Quimby pump, except the conventional due structure of single-suction double-screw pump, also include plain bearing housing 15 after removable inner liner 17, removable pump front shroud 1, machinable driving screw front slide bearing block 3, driving screw, rear plain bearing housing 14 from screw rod front slide bearing block 2 and correspondence.Described inner liner 17 aspect: inner liner 17, the pump housing 6 are connected with pin 18 with driving screw front slide bearing block 3；Inner liner 17 is made to be held axially stationary additionally, inner liner 17, the pump housing 6 and plain bearing housing 14 after screw rod are connected with pin 16.Pump front shroud 1 aspect: hole 19 place pump front shroud 1 coordinates hexagon socket cap head screw fastening to make front shroud keep fixing with the pump housing 6；The pump front shroud 1 at hole 20 place keeps fixing with bearing block 22 by hexagon-headed bolt fastening；The pump front shroud 1 at hole 21 place keeps fixing with machine envelope seat 23, machine capping 24 by hexagon-headed bolt fastening.
Driving screw 4 with from screw rod 5 aspect: the driving screw 4 in inner liner 17 sequentially pass through drivewheel 8, driving screw after plain bearing housing 15, inner liner 17, driving screw front slide bearing block 3, (including bearing block 22, machine envelope seat 23 and machine capping 24, bearing block 22 is connected with hex bolts pump front shroud 1 with pump front shroud 1 with machine seal structure；Machine capping 24 seals seat 23 with machine successively, pump front shroud 1 is connected with hex bolts), driving screw 4 is threadeded with driving screw stop washer 12, driving screw round nut 13；Sequentially pass through driven pulley 7 from screw rod, from plain bearing housing 14, inner liner 17, driving screw front slide bearing block 2 after screw rod, from screw rod 5 with from screw rod stop washer 10, threaded from screw rod round nut 11.
Plain bearing housing aspect: corresponding processing driving screw front slide bearing block 3 and from screw rod front slide bearing block 2, and plain bearing housing 15 and from the shape of plain bearing housing 14 after screw rod after driving screw, two plain bearing housing contact portions 25 of front end plain bearing housing (or rear end plain bearing housing) need to be processed as annular indentation face (for annulus radial cut bevel), driving screw front slide bearing block 3 is fitted with from screw rod front slide bearing block 2 machined surface, " 8 " font is become to be inserted in driving screw 4 and from screw rod 5 and be pressed in pump housing inner ring and connect with pin 18, pump front shroud 1 inner hole sleeve is entered driving screw front slide bearing block 3 rear portion simultaneously ensure that it is radially stable；After screw rod, plain bearing housing 14 is fitted into " 8 " font and is inserted in driving screw 4 and from screw rod 5 and be pressed in pump housing inner ring and be connected with pin 16 with plain bearing housing after driving screw 15 machined surface；Plain bearing housing liner oil-free sliding bearing.
Drivewheel 8, driven pulley 7 aspect: drivewheel 8 is inserted in driving screw 4 and is connected to ensure that it is radially fixed with driving screw 4 key, a pair driving screw stop washer 12, driving screw round nut 13 that the shaft shoulder is threadeded with driving screw 4 ensure that its axial restraint.Driven pulley 7 is inserted in from screw rod 5 and is connected to ensure that it is radially fixed with from screw rod 5 key, and a pair driving screw stop washer 10, driving screw round nut 11 that the shaft shoulder is threadeded with from screw rod 5 ensure that its axial restraint.
Fig. 2 is plain bearing housing structure chart.Two plain bearing housing contact portions 25 of front end plain bearing housing (or rear end plain bearing housing) need to be processed as annular indentation face (for annulus radial cut bevel).
The schematic diagram of Fig. 3 pump front shroud.According to pitch from the different eccentric throws calculating processing holes 28, then calculate the position in processing hole 26,27 and design pump front shroud accordingly.
Fig. 4 is the schematic diagram that the pump housing coordinates with inner liner.Inner liner material compared with outer liner reduces many, and structure is convenient.
The specific embodiment of the present invention is as follows: dismantled by Quimby pump complete in order, takes out two screw rods, two screw-pressings is measured its centre-to-centre spacing and calculates the inner liner internal via shape needing processing according to this centre-to-centre spacing；The eccentric throw of pump cover endoporus；The chipping allowance of the principal and subordinate's forward and backward plain bearing housing chipping allowance needing processing and the driving and driven gear needing processing.
(such product integration can be become kit according to computational manufacturing or processing, by this type of standardization of products), first inner liner is embedded among pump housing lining after processing, then by driving screw front slide bearing, from loading among sliding bearing inlay busher after screw rod and by pin.Afterwards major-minor screw rod is inserted in respectively inner liner and driving screw front slide bearing, among sliding bearing after screw rod, reinstall sliding bearing after driving screw, from screw rod front slide bearing.Afterwards the mode that principal and subordinate wheel key connects is respectively charged on master and slave screw rod, and stop washer, round nut are connected with screw flight.Finally pump front shroud is initially charged with a pair hexagon socket cap head screw, then with hex bolts, other is installed with the indescribable hole being connected.Finally machine envelope part is installed the maintenance and the part replacement that namely complete pump.
The work process of the present invention is: medium is flowed into by water inlet, owing to there is pressure differential between water inlet and outlet, medium is flowed into by water inlet, and enter pump body cavity by the inlet opening of pump housing water inlet end, and then enter two intermeshing masters by the through hole of pump housing rear end outer liner with inner liner, from the annular seal space that screw rod and pump housing inwall are formed, and then rely on by two intermeshing masters, the annular seal space volume change formed from screw rod and pump housing inwall carrys out pumped (conveying) medium, flow through the through hole of pump housing front end outer liner and inner liner successively, the pump housing front end cavity being connected with the through hole of inner liner with front end outer liner and the outlet being connected with cavity also flow out from outlet.
To sum up, a kind of gap scalable Quimby pump of the present invention, except the component that common double screw pump has, also include the supporting pump front shroud of removable pump body lining, this inner liner and machinable screw slide bearing block and removable drivewheel and driven pulley.The present invention is compared to common double screw pump, only need to change removable inner liner and pump front shroud in the pump housing and the small processing to the replacing of principal and subordinate wheel and sliding bearing seating face, by the mutual compression of two screw rods, reduce the leakage of pump that the method for two screw rods centre-to-centre spacing brings and the loss of the aspect of performance caused with the abrasion reducing screw rod and pump bushing, thus extending its service life and its maintenance cost of reduction.
It should be understood that above-mentioned example of executing is merely to illustrate the present invention rather than restriction the scope of the present invention, after having read the present invention, the amendment of the various equivalent form of values of the present invention is all fallen within the application claims limited range by those skilled in the art.
Claims (6)
1. a gap scalable Quimby pump, including the pump housing (6), the internal inner liner (17) of the pump housing (6), driving screw (4), from screw rod (5), pump front shroud (1) that the pump housing (6) one end sets gradually, driving screw front slide bearing block (3), from screw rod front slide bearing block (2)；Plain bearing housing (15) after the driving screw that the pump housing (6) other end sets gradually, from plain bearing housing (14), drivewheel (8), driven pulley (7) after screw rod；
Described driving screw (4) sequentially passes through plain bearing housing (15) after drivewheel (8), driving screw, inner liner (17), driving screw front slide bearing block (3), pump front shroud (1) and machine seal structure；Described from screw rod (5) sequentially pass through driven pulley (7), from plain bearing housing (14) after screw rod, inner liner (17), from screw rod front slide bearing block (2)；It is characterized in that:
Described drivewheel (8), driven pulley (7) are meshed and replaceable；Described inner liner (17) is cylinder, internal in " 8 " font hollow structure, can hold driving screw (4), from screw rod (5)；According to driving screw (4), from the difference of the degree of wear of screw rod (5) and pumped (conveying) medium, the inner liner (17) of replaceable different pore size and unlike material；In addition, corresponding processing driving screw front slide bearing block (3) and from screw rod front slide bearing block (2), and plain bearing housing (15) and from the shape of plain bearing housing (14) after screw rod after driving screw so that the shape of plain bearing housing is " 8 " font structure by front and back two；When screw rod weares and teares, only need to according to wear extent machining two to plain bearing housing contact portion (25) so that plain bearing housing matches with the inner liner (17) of new replacing.
2. a kind of gap according to claim 1 scalable Quimby pump, it is characterized in that, described driving screw front slide bearing block (3), it is embedded in inner liner (17) front end from screw rod front slide bearing block (2), and inner liner (17), the pump housing (6) are connected with driving screw front slide bearing block (3) lower end pin (18)；In addition, plain bearing housing (15) after described driving screw, be embedded in inner liner (17) rear end from plain bearing housing (14) after screw rod, inner liner (17), the pump housing (6) and plain bearing housing (14) after screw rod be connected with pin (16) make inner liner ensure axially and radially position is fixed.
3. a kind of gap according to claim 1 scalable Quimby pump, it is characterized in that, shaft shoulder place, described driving screw (4) rear end is cased with drivewheel (8), driving screw stop washer (12), driving screw round nut (13) successively, it is connected with key between driving screw (4) and drivewheel (8), ensure that it is radially fixed, and screw with driving screw round nut (13), it is ensured that drivewheel (8) axial restraint；The described shaft shoulder from screw rod (5) rear end is cased with driven pulley (7) successively, from screw rod stop washer (10), from screw rod round nut (11), it is connected between screw rod (5) and driven pulley (7) with key, ensure that it is radially fixed, and screw with from screw rod round nut (11), it is ensured that driven pulley (7) axial restraint.
4. a kind of gap according to claim 1 scalable Quimby pump, it is characterized in that, described pump front shroud (1) has endoporus, described driving screw (4) this endoporus of traverse, owing to the interior hole site of pump front shroud (1) is relevant with driving screw (4) position and centre-to-centre spacing, described pump front shroud (1) is replaceable, and the pump front shroud (1) that namely inner liner (17) of different pore size needs a kind of interior hole site supporting with it is corresponding.
5. a kind of gap according to claim 1 scalable Quimby pump, it is characterized in that, described machine seal structure is connected with pump front shroud (1) by hex bolts, and described machine seal structure includes bearing block (22), machine envelope seat (23) and machine capping (24).
6. a kind of gap according to claim 1 scalable Quimby pump, it is characterized in that, described driving screw front slide bearing block (3) and from screw rod front slide bearing block (2), and plain bearing housing (15) and need to be processed as annular indentation face from two plain bearing housing contact portions (25) of plain bearing housing (14) after screw rod after driving screw, annular indentation face fits so that forward and backward two plain bearing housings respectively in " 8 " font structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107811.0A CN105736359B (en) | 2016-02-26 | 2016-02-26 | A kind of gap can adjust Quimby pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107811.0A CN105736359B (en) | 2016-02-26 | 2016-02-26 | A kind of gap can adjust Quimby pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736359A true CN105736359A (en) | 2016-07-06 |
| CN105736359B CN105736359B (en) | 2018-02-27 |
Family
ID=56249498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610107811.0A Expired - Fee Related CN105736359B (en) | 2016-02-26 | 2016-02-26 | A kind of gap can adjust Quimby pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736359B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2306340Y (en) * | 1996-12-31 | 1999-02-03 | 西安交通大学 | Double screw-type pump case for oil and gas mixed delivering |
| CN2735044Y (en) * | 2004-08-25 | 2005-10-19 | 袁道幸 | Integrated double-screw pump |
| CN202056047U (en) * | 2010-12-29 | 2011-11-30 | 陈思 | Adjustable double-screw pump sleeve |
| CN203272127U (en) * | 2013-03-20 | 2013-11-06 | 浙江威隆机械科技有限公司 | Wear-resisting device of rotor pump |
-
2016
- 2016-02-26 CN CN201610107811.0A patent/CN105736359B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2306340Y (en) * | 1996-12-31 | 1999-02-03 | 西安交通大学 | Double screw-type pump case for oil and gas mixed delivering |
| CN2735044Y (en) * | 2004-08-25 | 2005-10-19 | 袁道幸 | Integrated double-screw pump |
| CN202056047U (en) * | 2010-12-29 | 2011-11-30 | 陈思 | Adjustable double-screw pump sleeve |
| CN203272127U (en) * | 2013-03-20 | 2013-11-06 | 浙江威隆机械科技有限公司 | Wear-resisting device of rotor pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105736359B (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678541B (en) | Fuel delivery pump with floated cycloid rotor | |
| CN101368552B (en) | Heeling moment full-balancing shaft distribution mechanism and bidirectional variable radial ball piston pump | |
| CN105736359A (en) | Interval-adjustable two-screw pump | |
| CN205663609U (en) | Plunger pump | |
| CN105351372A (en) | Design of 7500L tumbling machine supporting roller bearing seat | |
| CN208518874U (en) | A kind of plunger and plunger pump having plunger ring | |
| CN104121189B (en) | Double-action stepless speed variator oil pump | |
| CN205277792U (en) | Plunger pump with radially join in marriage oily structure | |
| CN205677781U (en) | A kind of large-flow emulsion plunger displacement pump and a kind of emulsion power pack | |
| CN204299866U (en) | Cantilever type lubrication three screw pump | |
| CN209145856U (en) | Double clutch automatic speed changing case oil pump | |
| CN203783874U (en) | Radial plunger pump | |
| CN103133535A (en) | Hydraulic plunger pump sliding bearing and machining method thereof | |
| CN207364244U (en) | A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder | |
| CN201358919Y (en) | Balanced double screw compressor | |
| CN201982945U (en) | Oil pump assembly | |
| CN101139988A (en) | Pin-hole type cycloid rotor pump | |
| CN2937558Y (en) | Short lead three-screw pump for grinding machine | |
| CN2152098Y (en) | Swing line oil pump | |
| CN205208003U (en) | Swivel joint of high accuracy central authorities | |
| CN205663583U (en) | Emulsion pump station | |
| CN205423292U (en) | Can simply change shaft seal structure of axle bush water pump | |
| CN203146821U (en) | Shaft end sealing device of output shaft of traveling motor of crawler excavator | |
| CN207348997U (en) | Twin shaft watt supports the single plunger high-pressure oil pump of transmission shaft kinematic pair | |
| CN203809287U (en) | Vertically-suspended type three-screw pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20190226 |