CN108591051A - Screw pump - Google Patents
Screw pump Download PDFInfo
- Publication number
- CN108591051A CN108591051A CN201810320979.9A CN201810320979A CN108591051A CN 108591051 A CN108591051 A CN 108591051A CN 201810320979 A CN201810320979 A CN 201810320979A CN 108591051 A CN108591051 A CN 108591051A
- Authority
- CN
- China
- Prior art keywords
- sliding block
- locating piece
- screw pump
- driven
- slide
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of screw pumps, including screw pump, material feeding box, transmission shaft and coupling device；Sealing is fixed with the bearing block of tubular at the power input port of the material feeding box；The transmission shaft passes through bearing block and is connected to the rotor of screw pump by the coupling device；The coupling device includes sequentially connected first slide, crosshead shoe and second slide；The crosshead shoe includes active sliding block, driven sliding block and locating piece, the driven sliding block by it is rotatable and in axial sliding in a manner of be connected to active sliding block and positioned by the locating piece；It is equipped with the locating slot to match with locating piece on the opposite face of active sliding block and driven sliding block；The locating piece is trapezoidal, makes to coordinate by inclined-plane between the bottom surface of the locating slot on locating piece and driven sliding block；Partially connected architecture between screw pump and motor can be dismounted directly, easy to maintenance, and can adapt to the size of installation space, filled and easy to maintenance, do not influenced integrally-built stability.
Description
Technical field
The present invention relates to a kind of screw pumps.
Background technology
Screw pump is volume type rotor pump, it be the seal chamber formed by rotor and stator volume change sucking and
Material is discharged, with flow trim, pressure fluctuation is small, has low suction capacity, noise, efficient, long lifespan, reliable operation etc.
Advantage, generally use cross coupler connects between the rotor and machine shaft of screw pump at present, can reduce and be wanted to concentricity
It asks, avoids the problem that noise, vibrations and component are seriously worn caused by concentricity difference, but the dismounting dimension of cross coupler at present
Shield, be required to provide in the axial direction it is certain allow bit space, need to move integrally in motor, give equipment installation, maintenance work
Bring larger difficulty, cost is higher, and the axial dimension of cross coupler and screw pump rotor between transmission shaft away from
It from strictly to match, otherwise can not install, once there is the unmatched situation of size, then the position of transmission shaft can only be adjusted
Whole, workload is very big, is easily destroyed the former fit structure of bearing block, leads to overall co-ordination accuracy decline, it is steady to influence overall structure
It is fixed.
Invention content
In view of this, the object of the present invention is to provide a kind of screw pumps, and compared with prior art, screw pump and motor
Between partially connected architecture can directly dismount, it is easy to maintenance, be not necessarily to mobile motor or the pump housing, and can adapt to installation space
Size, the transmission shaft without being connected to screw pump and with machine shaft is adjusted, installation and easy to maintenance, does not influence whole
The stability of body structure.
The screw pump of the present invention, including screw pump, material feeding box, transmission shaft and coupling device；It is set on the material feeding box
Have feed inlet, discharge port and a power input port, material feeding box be fixed on the feed end of the stator of screw pump and its discharge port with it is fixed
The feed inlet of son communicates；Sealing is fixed with the bearing block of tubular at the power input port of the material feeding box；The transmission shaft passes through
Bearing block and the rotor that screw pump is connected to by the coupling device；The coupling device includes sequentially connected first cunning
Seat, crosshead shoe and second slide；The crosshead shoe includes active sliding block, driven sliding block and locating piece, the driven sliding block
By it is rotatable and in axial sliding in a manner of be connected to active sliding block and positioned by the locating piece；Active sliding block and from
The locating slot to match with locating piece is equipped on the opposite face of movable slider；The locating piece be it is trapezoidal, make locating piece with it is driven
Being coordinated by inclined-plane between the bottom surface of locating slot on sliding block, a sliding rail of crosshead shoe is located in active sliding block, another
Sliding rail is located in driven sliding block, and locating slot is set to the edge of active sliding block and driven sliding block, therefore can will be positioned from radial direction packaged
Enter and take out, when the sliding rail in active sliding block and driven sliding block is in right-angled intersection state, locating piece is packed into locating slot, it is right
Active sliding block and driven sliding block are effectively positioned；After removing locating piece, rotatable active sliding block or driven sliding block make master
Movable slider is parallel with the sliding rail in driven sliding block, can integrally remove crosshead shoe；When locating piece is slided along locating slot, energy
Driven sliding block is driven to move axially using inclined-plane between locating piece and driven sliding block, therefore by adjusting locating piece relative to actively
The radial position of sliding block and driven sliding block can change the whole axial dimension of coupling device.
Further, the locating slot in the active sliding block and driven sliding block is dovetail groove, the locating piece insertion positioning
Part in slot is trapezoidal sliding rail, realizes that single-degree-of-freedom is slidably matched, make locating piece move radially effectively be converted into it is driven
The axial movement of sliding block.
Further, the center of the active sliding block is equipped with shaft；The driven sliding block is sleeved in shaft, in the shaft
It is additionally provided with radially-protruding adjustment screw；The locating piece is threadingly attached to adjustment screw；Shaft is equipped with for each
A adjustment screw carries out the clamp spring of axially position, and the outer end of adjustment screw is equipped with flat recess, convenient for rotating adjustment screw, in turn
Realize the loading and taking-up of locating piece；Be set with extension spring in adjustment screw, extension spring be connected to shaft and locating piece it
Between, certain pulling force is generated to locating piece, is avoided the locating piece caused by adjustment screw loosens from surprisingly falling off, is ensured the safety used
Property.
Further, the locating piece be right-angled trapezium, make locating piece in active sliding block locating slot sliding direction with
Accordingly adjustment screw is axial consistent, makes locating piece that can be moved always along adjustment screw.
Further, the locating piece at least there are three and be uniformly distributed around the shaft；The quantity and locating piece of adjustment screw
It is identical；The inner end of each adjustment screw is driven by angular wheel to be coordinated, and the thread rotary orientation of two neighboring adjustment screw is on the contrary, turning
When moving one of adjustment screw, the linkage of other adjustment screws is realized using angular wheel transmission fit structure, it is each fixed to make
Position block synchronizing moving.
Further, the sliding rail in the active sliding block is slidably matched with first slide, the sliding rail in the driven sliding block with
Second slide is slidably matched.
Further, the sliding rail in the active sliding block and driven sliding block is trapezoidal rail；In first slide and second slide
Sliding slot be dovetail groove；It can realize that single-degree-of-freedom is slidably matched, cooperation precision is high, and each component forms of motion is single, actively sliding
Block, driven sliding block, first slide and second slide form certain constraint between each other, substantially increase system stability.
Further, sealing is fixed with feed pipe at the feed inlet of the material feeding box；The discharge port outer end face of material feeding box is equipped with
Deep gouge for the stator insertion for screw pump；The sealing of feed pipe outer end is fixed with connecting flange, convenient between feeding device
Connection；The feed end of stator is embedded in the deep gouge, is then welded and fixed and seals, can not only be improved between material feeding box and stator
Bonding strength, and stator can reliably be positioned in assembling process, improves assembly precision.
The beneficial effects of the invention are as follows：The screw pump of the present invention, compared with prior art, between screw pump and motor
Partially connected architecture can directly dismount, it is easy to maintenance, be not necessarily to mobile motor or the pump housing, and can adapt to the big of installation space
Small, the transmission shaft without being connected to screw pump and with machine shaft is adjusted, and is installed and easy to maintenance, is not influenced whole knot
The stability of structure.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is enlarged view at the A of Fig. 1.
Specific implementation mode
As shown in Figure 1, 2：The screw pump of the present embodiment, including screw pump 1, material feeding box 4, transmission shaft 11 and connecting shaft dress
It sets；The material feeding box 4 be equipped with feed inlet, discharge port and power input port, material feeding box 4 be fixed on the stator 2 of screw pump 1 into
Expect end and its discharge port is communicated with the feed inlet of stator 2；Sealing is fixed with tubular at the power input port of the material feeding box 4
Bearing block 10；The transmission shaft 11 passes through bearing block 10 and is connected to the rotor 3 of screw pump 1 by the coupling device；It is described
Coupling device includes sequentially connected first slide 9, crosshead shoe and second slide 6；First slide 9 is fixed on transmission shaft 11,
Second slide 6 is fixed on the rotor 3 of screw pump 1 by bolt and flange；The flange is integrally formed with rotor 3, the bolt
It across flange and is fixed in second slide 6, removes bolt or bolt is unscrewed and can move axially second slide 6；It is described
Crosshead shoe includes active sliding block 8, driven sliding block 7 and locating piece 12, and the driven sliding block 7 is with rotatable and square in axial sliding
Formula is connected to active sliding block 8 and is positioned by the locating piece 12；On the opposite face of active sliding block 8 and driven sliding block 7
It is equipped with the locating slot to match with locating piece 12；The locating piece 12 is trapezoidal, and locating piece 12 is made to determine in driven sliding block 7
Position slot bottom surface between coordinated by inclined-plane, a sliding rail of crosshead shoe is located in active sliding block 8, another sliding rail be located at from
On movable slider 7, locating slot is set to the edge of active sliding block 8 and driven sliding block 7, therefore can be packed into and take from radial direction by locating piece 12
Go out, when the sliding rail in active sliding block 8 and driven sliding block 7 is in right-angled intersection state, locating piece 12 is packed into locating slot, to master
Movable slider 8 and driven sliding block 7 are effectively positioned；After removing locating piece 12, rotatable active sliding block 8 or driven sliding block 7
Keep active sliding block 8 parallel with the sliding rail in driven sliding block 7, crosshead shoe can integrally be removed；When locating piece 12 is along locating slot
When sliding, it can utilize inclined-plane between locating piece 12 and driven sliding block 7 that driven sliding block 7 is driven to move axially, therefore by adjusting fixed
Position block 12 can change the whole axial dimension of coupling device relative to the radial position of active sliding block 8 and driven sliding block 7.
In the present embodiment, the locating slot in the active sliding block 8 and driven sliding block 7 is dovetail groove, the locating piece 12
Part in embedded locating slot is trapezoidal sliding rail, realizes that single-degree-of-freedom is slidably matched, and keeps moving radially for locating piece 12 effective
It is converted into the axial movement of driven sliding block 7, the center of the active sliding block 8 is equipped with shaft；The driven sliding block 7 is sleeved on shaft
On, radially-protruding adjustment screw 13 is additionally provided in the shaft；The locating piece 12 is threadingly attached to adjustment screw 13；
Shaft is equipped with the clamp spring for carrying out axially position to each adjustment screw 13, and the outer end of adjustment screw 13 is equipped with flat recess,
Convenient for rotating adjustment screw 13, and then realize the loading and taking-up of locating piece 12；It is set with extension spring in adjustment screw 13
14, extension spring 14 is connected between shaft and locating piece 12, and certain pulling force is generated to locating piece 12, is avoided because of adjustment screw
13 loosenings cause locating piece 12 surprisingly to fall off, and ensure that the safety used, the locating piece 12 are right-angled trapezium, make locating piece 12
The direction of locating slot sliding in active sliding block 8 is axial consistent with corresponding adjustment screw 13, and locating piece 12 is made always can
Moved along adjustment screw 13, the locating piece 12 at least there are three and be uniformly distributed around the shaft；The quantity of adjustment screw 13 with
Locating piece 12 is identical；The inner end of each adjustment screw 13 is driven by angular wheel 15 to be coordinated, the spiral shell of two neighboring adjustment screw 13
Line is oppositely oriented, when rotating one of adjustment screw 13, is driven fit structure using angular wheel 15 and realizes other adjustment
The linkage of screw rod 13 makes 12 synchronizing moving of each locating piece.
In the present embodiment, the sliding rail in the active sliding block 8 is slidably matched with first slide 9, in the driven sliding block 7
Sliding rail is slidably matched with second slide 6, and the sliding rail in the active sliding block 8 and driven sliding block 7 is trapezoidal rail；First slide 9
It is dovetail groove with the sliding slot in second slide 6；It can realize that single-degree-of-freedom is slidably matched, cooperation precision is high, and each component moves shape
Formula is single, and active sliding block 8, driven sliding block 7, first slide 9 and second slide 6 form certain constraint between each other, carry significantly
High system stability, at the feed inlet of the material feeding box 4 sealing be fixed with feed pipe 5；The discharge port outer end face of material feeding box 4 is set
It is useful for the deep gouge being embedded in for the stator 2 of screw pump 1；The sealing of 5 outer end of feed pipe is fixed with connecting flange, is convenient for and feeding device
Between connect；The feed end of stator 2 is embedded in the deep gouge, is then welded and fixed and seals, material feeding box 4 can not only be improved and determined
Bonding strength between son 2, and stator 2 can reliably be positioned in assembling process, improve assembly precision.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (8)
1. a kind of screw pump, it is characterised in that：Including screw pump, material feeding box, transmission shaft and coupling device；The material feeding box
It is equipped with feed inlet, discharge port and power input port, material feeding box is fixed on the feed end of the stator of screw pump and its discharge port
It is communicated with the feed inlet of stator；Sealing is fixed with the bearing block of tubular at the power input port of the material feeding box；The transmission shaft
The rotor of screw pump is connected to across bearing block and by the coupling device；The coupling device includes sequentially connected first
Slide, crosshead shoe and second slide；The crosshead shoe includes active sliding block, driven sliding block and locating piece, the driven cunning
Block by it is rotatable and in axial sliding in a manner of be connected to active sliding block and positioned by the locating piece；Active sliding block and
The locating slot to match with locating piece is equipped on the opposite face of driven sliding block；The locating piece be it is trapezoidal, make locating piece with from
Coordinated by inclined-plane between the bottom surface of locating slot on movable slider.
2. screw pump according to claim 1, it is characterised in that：Positioning in the active sliding block and driven sliding block
Slot is dovetail groove, and the part in the locating piece insertion locating slot is trapezoidal sliding rail.
3. screw pump according to claim 2, it is characterised in that：The center of the active sliding block is equipped with shaft；Institute
It states driven sliding block to be sleeved in shaft, radially-protruding adjustment screw is additionally provided in the shaft；The locating piece passes through screw thread
It is connected to adjustment screw.
4. screw pump according to claim 3, it is characterised in that：The locating piece is right-angled trapezium, makes locating piece
The direction of locating slot sliding in active sliding block is axial consistent with corresponding adjustment screw.
5. screw pump according to claim 4, it is characterised in that：The locating piece at least there are three and around the shaft
It is uniformly distributed；The quantity of adjustment screw is identical as locating piece；The inner end of each adjustment screw is driven by angular wheel to be coordinated.
6. screw pump according to claim 5, it is characterised in that：Sliding rail in the active sliding block and first slide
It is slidably matched, the sliding rail in the driven sliding block is slidably matched with second slide.
7. screw pump according to claim 6, it is characterised in that：Sliding rail in the active sliding block and driven sliding block
It is trapezoidal rail；Sliding slot in first slide and second slide is dovetail groove.
8. screw pump according to claim 7, it is characterised in that：Sealing is fixed at the feed inlet of the material feeding box
Feed pipe；The discharge port outer end face of material feeding box is equipped with the deep gouge for the stator insertion for screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320979.9A CN108591051B (en) | 2018-04-11 | 2018-04-11 | Screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320979.9A CN108591051B (en) | 2018-04-11 | 2018-04-11 | Screw pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591051A true CN108591051A (en) | 2018-09-28 |
| CN108591051B CN108591051B (en) | 2019-11-08 |
Family
ID=63621723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810320979.9A Active CN108591051B (en) | 2018-04-11 | 2018-04-11 | Screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591051B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187825A (en) * | 2021-06-01 | 2021-07-30 | 亓桂景 | Screw pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1653864B2 (en) * | 1967-01-19 | 1976-12-09 | Ausscheidung in: 17 28 623 Mörtl, Karl, 8780 Gemünden | Eccentric screw pump |
| DE2027993B2 (en) * | 1970-06-06 | 1978-03-30 | Allweiler Ag, 7760 Radolfzell | Coupling for eccentric helical rotor pump - has mutually perpendicular bolts held in ball bearings in coupling halves |
| CN101943222A (en) * | 2010-09-07 | 2011-01-12 | 电子科技大学 | Double slider coupling for drive test of automobile rear axle or final drive assembly |
| CN105351185A (en) * | 2015-11-23 | 2016-02-24 | 重庆高研泵业有限公司 | Novel transmission screw pump |
| CN205977667U (en) * | 2016-07-27 | 2017-02-22 | 天津泵业机械集团有限公司 | Single -screw pump with crosshead shoe connection structure |
| CN107208483A (en) * | 2015-01-29 | 2017-09-26 | 耐驰泵及系统有限公司 | Stator rotor system and the method for adjusting stator in stator rotor system |
-
2018
- 2018-04-11 CN CN201810320979.9A patent/CN108591051B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1653864B2 (en) * | 1967-01-19 | 1976-12-09 | Ausscheidung in: 17 28 623 Mörtl, Karl, 8780 Gemünden | Eccentric screw pump |
| DE2027993B2 (en) * | 1970-06-06 | 1978-03-30 | Allweiler Ag, 7760 Radolfzell | Coupling for eccentric helical rotor pump - has mutually perpendicular bolts held in ball bearings in coupling halves |
| CN101943222A (en) * | 2010-09-07 | 2011-01-12 | 电子科技大学 | Double slider coupling for drive test of automobile rear axle or final drive assembly |
| CN107208483A (en) * | 2015-01-29 | 2017-09-26 | 耐驰泵及系统有限公司 | Stator rotor system and the method for adjusting stator in stator rotor system |
| CN105351185A (en) * | 2015-11-23 | 2016-02-24 | 重庆高研泵业有限公司 | Novel transmission screw pump |
| CN205977667U (en) * | 2016-07-27 | 2017-02-22 | 天津泵业机械集团有限公司 | Single -screw pump with crosshead shoe connection structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187825A (en) * | 2021-06-01 | 2021-07-30 | 亓桂景 | Screw pump |
| CN113187825B (en) * | 2021-06-01 | 2022-09-13 | 东营市东营区东泊泵业有限公司 | Screw pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108591051B (en) | 2019-11-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181205 Address after: 238200 Economic and Technological Development Zone of Ma'anshan City and County, Anhui Province Applicant after: ESKE PUMP COMPANY Address before: Room 402, 41 Changjiang House Apartment, Gulou District, Nanjing City, Jiangsu Province Applicant before: Cao Zhuming |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |