CN108644111B - Screw pump convenient to disassemble and assemble - Google Patents
Screw pump convenient to disassemble and assemble Download PDFInfo
- Publication number
- CN108644111B CN108644111B CN201810320283.6A CN201810320283A CN108644111B CN 108644111 B CN108644111 B CN 108644111B CN 201810320283 A CN201810320283 A CN 201810320283A CN 108644111 B CN108644111 B CN 108644111B
- Authority
- CN
- China
- Prior art keywords
- screw pump
- sliding
- feeding
- block
- feeding box
- 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.)
- Active
Links
Images
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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a screw pump convenient to disassemble and assemble, which comprises a screw pump and a feeding box, wherein the screw pump is arranged on the feeding box; the feeding box is provided with a feeding hole, a discharging hole and a power input hole, and is fixed at the feeding end of the stator of the screw pump, and the discharging hole of the feeding box is communicated with the feeding hole of the stator; a cylindrical bearing seat is fixed at the power transmission inlet of the feeding box in a sealing way; the screw pump convenient to disassemble and assemble combines the bearing seat and the feeding box into a whole, eliminates a bearing installation structure which is complex in structure, large in size, high in cost and easy to leak, greatly shortens the whole length, can be assembled with a bearing in the bearing seat, is small and compact in whole, eliminates a leakage structure, saves a large amount of materials, reduces the size, reduces the cost, beautifies the appearance, is convenient to assemble and maintain, and is convenient to manufacture and use.
Description
Technical Field
The invention relates to a screw pump convenient to disassemble and assemble.
Background
The screw pump is a positive displacement rotor pump, it relies on the volume change of the sealed cavity that rotor and stator form to suck and discharge the supplies, it is steady, the pressure pulsation is small, there is self-priming ability, the noise is low, high efficiency, have long-lived, reliable operation etc. the rotor of the screw pump usually adopts the cross-shaped coupling to connect with motor spindle at present, can reduce the requirement for the axiality, avoid the problem of noise, vibrations and serious wearing and tearing of part caused by the axiality difference, but the dismouting of the cross-shaped coupling at present is maintained, all need provide certain space of stepping down in the axial direction to carry out, need move the motor integrally, bring great difficulty for equipment fixing, maintenance work, the cost is higher.
Disclosure of Invention
In view of this, the present invention provides a screw pump with easy assembly and disassembly, compared with the prior art, a part of the connection structure between the screw pump and the motor can be directly assembled and disassembled, the maintenance is convenient, the motor or the pump body does not need to be moved, the maintenance time is greatly shortened, and the cost is saved.
The screw pump convenient to disassemble and assemble comprises a screw pump, a feeding box, a transmission shaft and a connecting shaft device; the feeding box is provided with a feeding hole, a discharging hole and a power input hole, and is fixed at the feeding end of the stator of the screw pump, and the discharging hole of the feeding box is communicated with the feeding hole of the stator; a cylindrical bearing seat is fixed at the power transmission inlet of the feeding box in a sealing way; the transmission shaft penetrates through the bearing seat and is connected to a rotor of the screw pump through the connecting shaft device; the connecting shaft device comprises a first sliding seat, a cross sliding block and a second sliding seat which are connected in sequence; the crosshead shoe comprises a driving slide block, a driven slide block and a positioning block, and the driven slide block is rotatably connected to the driving slide block and is circumferentially positioned through the positioning block; one sliding rail of the crosshead shoe is arranged on the driving sliding block, the other sliding rail of the crosshead shoe is arranged on the driven sliding block, the driving sliding block and the driven sliding block are connected together in a way of only rotating, and positioning grooves matched with the positioning blocks are arranged on the opposite surfaces of the driving sliding block and the driven sliding block; the positioning grooves are formed in the edges of the driving slide block and the driven slide block, so that the positioning blocks can be installed and taken out from the radial direction, and when the slide rails on the driving slide block and the driven slide block are in a crisscross state, the positioning blocks are installed in the positioning grooves to effectively position the driving slide block and the driven slide block; after the positioning block is removed, the driving slide block or the driven slide block can be rotated to enable the slide rails on the driving slide block and the driven slide block to be parallel, and then the crosshead shoe can be integrally removed.
Further, a rotating shaft is arranged in the center of the driving sliding block; the driven slide block is sleeved on the rotating shaft, and the rotating shaft is also provided with an adjusting screw rod extending out in the radial direction; the positioning block is connected to the adjusting screw rod through threads; the rotating shaft is provided with a clamp spring for axially positioning the driven sliding block and each adjusting screw rod, and the outer end of each adjusting screw rod is provided with a straight groove, so that the adjusting screw rods can be conveniently rotated, and the positioning blocks can be loaded and unloaded; the adjusting screw is sleeved with an extension spring, the extension spring is connected between the rotating shaft and the positioning block, certain pulling force is generated on the positioning block, the positioning block is prevented from accidentally falling off due to looseness of the adjusting screw, and the use safety is guaranteed.
Furthermore, at least three positioning blocks are uniformly distributed around the rotating shaft; the number of the adjusting screws is the same as that of the positioning blocks; each positioning block shares the torsion in the circumferential direction, and the comprehensive stress performance is good.
Furthermore, a sliding rail on the driving sliding block is in sliding fit with the first sliding seat, and a sliding rail on the driven sliding block is in sliding fit with the second sliding seat.
Furthermore, the slide rails on the driving slide block and the driven slide block are both trapezoidal rails; the sliding grooves on the first sliding seat and the second sliding seat are dovetail grooves; the single-degree-of-freedom sliding fit can be realized, the matching precision is high, the motion form of each part is single, the driving sliding block, the driven sliding block, the first sliding seat and the second sliding seat form certain constraint mutually, and the system stability is greatly improved.
Further, a feeding pipe is fixed at a feeding port of the feeding box in a sealing manner; a sink groove for embedding a stator of the screw pump is formed in the outer end face of the discharge port of the feeding box; the outer end of the feeding pipe is hermetically fixed with a connecting flange which is convenient for connecting with feeding equipment; the feeding end of the stator is embedded into the sinking groove and then is welded, fixed and sealed, so that the connection strength between the feeding box and the stator can be improved, the stator can be reliably positioned in the assembling process, and the assembling precision is improved.
The invention has the beneficial effects that: compared with the prior art, the screw pump convenient to disassemble and assemble has the advantages that part of the connecting structure between the screw pump and the motor can be directly disassembled and assembled, the maintenance is convenient, the motor or the pump body does not need to be moved, the maintenance time is greatly shortened, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view at a of fig. 1.
Detailed Description
As shown in fig. 1 and 2: the screw pump convenient to disassemble and assemble comprises a screw pump 1, a feeding box 4, a transmission shaft 11 and a connecting shaft device; the feeding box 4 is provided with a feeding hole, a discharging hole and a power input hole, the feeding box 4 is fixed at the feeding end of the stator 2 of the screw pump 1, and the discharging hole of the feeding box is communicated with the feeding hole of the stator 2; a cylindrical bearing seat 10 is fixed at the power input port of the feeding box 4 in a sealing way; the transmission shaft 11 penetrates through the bearing seat 10 and is connected to the rotor 3 of the screw pump 1 through the connecting shaft device, and a feeding pipe 5 is fixed at a feeding port of the feeding box 4 in a sealing manner; a sink groove for embedding the stator 2 of the screw pump 1 is arranged on the outer end face of the discharge port of the feeding box 4; the outer end of the feeding pipe 5 is hermetically fixed with a connecting flange which is convenient for connecting with feeding equipment; the feeding end of the stator 2 is embedded into the sinking groove and then welded, fixed and sealed, so that the connection strength between the feeding box 4 and the stator 2 can be improved, the stator 2 can be reliably positioned in the assembling process, and the assembling precision is improved; the connecting shaft device comprises a first sliding seat 9, a cross sliding block and a second sliding seat 6 which are connected in sequence; the first sliding seat 9 is fixed on the transmission shaft 11, and the second sliding seat 6 is fixed on the rotor 3 of the screw pump 1; the crosshead shoe comprises a driving slide block 8, a driven slide block 7 and a positioning block 12, and the driven slide block 7 is rotatably connected to the driving slide block 8 and is circumferentially positioned by the positioning block 12; one sliding rail of the crosshead shoe is arranged on the driving sliding block 8, the other sliding rail is arranged on the driven sliding block 7, the driving sliding block 8 and the driven sliding block 7 are connected together in a mode of only rotating, and positioning grooves matched with the positioning blocks 12 are arranged on the opposite surfaces of the driving sliding block 8 and the driven sliding block 7; the positioning grooves are formed in the edges of the driving slide block 8 and the driven slide block 7, so that the positioning blocks 12 can be installed and taken out from the radial direction, and when the sliding rails on the driving slide block 8 and the driven slide block 7 are in a cross state, the positioning blocks 12 are installed in the positioning grooves, so that the driving slide block 8 and the driven slide block 7 are effectively positioned; after the positioning block 12 is removed, the driving slide block 8 or the driven slide block 7 can be rotated to enable the slide rails on the driving slide block 8 and the driven slide block 7 to be parallel, and the crosshead shoe can be integrally removed.
In this embodiment, a rotating shaft is arranged at the center of the driving slider 8; the driven slide block 7 is sleeved on a rotating shaft, and the rotating shaft is also provided with an adjusting screw rod 13 which extends out in the radial direction; the positioning block 12 is connected to the adjusting screw 13 through threads; a snap spring for axially positioning the driven slide block 7 and each adjusting screw 13 is arranged on the rotating shaft, and a straight groove is formed in the outer end of each adjusting screw 13, so that the adjusting screws 13 can be conveniently rotated, and the positioning blocks 12 can be loaded and unloaded; an extension spring 14 is sleeved on the adjusting screw 13, the extension spring 14 is connected between the rotating shaft and the positioning block 12, a certain pulling force is generated on the positioning block 12, the positioning block 12 is prevented from accidentally falling off due to looseness of the adjusting screw 13, and the use safety is guaranteed; at least three positioning blocks 12 are uniformly distributed around the rotating shaft; the number of the adjusting screws 13 is the same as that of the positioning blocks 12; each positioning block 12 shares the torsion in the circumferential direction, and the comprehensive stress performance is good; the slide rail on the driving slide block 8 is in sliding fit with the first slide seat 9, and the slide rail on the driven slide block 7 is in sliding fit with the second slide seat 6; the slide rails on the driving slide block 8 and the driven slide block 7 are both trapezoidal rails; the sliding grooves on the first sliding seat 9 and the second sliding seat 6 are dovetail grooves; the single-degree-of-freedom sliding fit can be realized, the matching precision is high, the motion forms of all parts are single, the driving sliding block 8, the driven sliding block 7, the first sliding seat 9 and the second sliding seat 6 form certain constraint mutually, and the system stability is greatly improved.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. A screw pump convenient for disassembly and assembly comprises a screw pump, a feeding box, a transmission shaft and a connecting shaft device; the feeding box is provided with a feeding hole, a discharging hole and a power input hole, and is fixed at the feeding end of the stator of the screw pump, and the discharging hole of the feeding box is communicated with the feeding hole of the stator; a cylindrical bearing seat is fixed at the power transmission inlet of the feeding box in a sealing way; the transmission shaft penetrates through the bearing seat and is connected to a rotor of the screw pump through the connecting shaft device; the connecting shaft device comprises a first sliding seat, a cross sliding block and a second sliding seat which are connected in sequence; the crosshead shoe comprises a driving slide block, a driven slide block and a positioning block, and the driven slide block is rotatably connected to the driving slide block and is circumferentially positioned through the positioning block; the method is characterized in that: a rotating shaft is arranged in the center of the driving sliding block; the driven slide block is sleeved on the rotating shaft, and the rotating shaft is also provided with an adjusting screw rod extending out in the radial direction; the positioning block is connected to the adjusting screw rod through threads.
2. A screw pump according to claim 1, wherein: at least three positioning blocks are uniformly distributed around the rotating shaft; the number of the adjusting screws is the same as that of the positioning blocks.
3. A screw pump according to claim 2, wherein: the sliding rail on the driving sliding block is in sliding fit with the first sliding seat, and the sliding rail on the driven sliding block is in sliding fit with the second sliding seat.
4. A progressive cavity pump according to claim 3, wherein: the slide rails on the driving slide block and the driven slide block are both trapezoidal rails; the sliding grooves on the first sliding seat and the second sliding seat are dovetail grooves.
5. A screw pump according to claim 1, wherein: a feeding pipe is fixed at the feeding port of the feeding box in a sealing way; the outer end face of the discharge port of the feeding box is provided with a sink groove for embedding a stator of the screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320283.6A CN108644111B (en) | 2018-04-11 | 2018-04-11 | Screw pump convenient to disassemble and assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320283.6A CN108644111B (en) | 2018-04-11 | 2018-04-11 | Screw pump convenient to disassemble and assemble |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644111A CN108644111A (en) | 2018-10-12 |
| CN108644111B true CN108644111B (en) | 2020-04-17 |
Family
ID=63746004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810320283.6A Active CN108644111B (en) | 2018-04-11 | 2018-04-11 | Screw pump convenient to disassemble and assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644111B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19943107C2 (en) * | 1999-09-09 | 2001-09-20 | Netzsch Mohnopumpen Gmbh | Eccentric screw pump connecting device and eccentric screw pump with such a connecting device |
| DE102005039612A1 (en) * | 2004-08-20 | 2006-02-23 | Knoll Maschinenbau Gmbh | Eccentric spiral pump for use in food industry, has connection unit connecting rotor units and covering unit in torque-proof manner, where connection unit is installed in position separated from interior of pump housing by covering unit |
| JP5360387B2 (en) * | 2009-03-31 | 2013-12-04 | 兵神装備株式会社 | Rotor drive mechanism and pump device including the same |
| CN102562839A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Oldham coupling of weft winder |
| CN105351185B (en) * | 2015-11-23 | 2017-09-22 | 重庆高研泵业有限公司 | Novel transmission screw pump |
-
2018
- 2018-04-11 CN CN201810320283.6A patent/CN108644111B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108644111A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101305404B1 (en) | Membrane pump | |
| EP2687678A1 (en) | A rotor for a radial compressor and a method for construction thereof | |
| CN102182691B (en) | A kind of for the Modular pump unit in multistage pump | |
| US20140314358A1 (en) | Rolling-element bearing support module and compressor | |
| JP7215829B2 (en) | SHAFT COUPLING AND ROTATING DEVICE INCLUDING THE SHAFT COUPLING | |
| EP3149330B1 (en) | Integrated displacement controlled pump | |
| CN108644111B (en) | Screw pump convenient to disassemble and assemble | |
| CN109681423A (en) | A kind of integrated hydraulic power unit based on external rotor electric machine | |
| CN211116443U (en) | Radial plunger pump convenient to maintain | |
| EP2759710A1 (en) | A centrifugal pump and a sleeve for coupling the shaft of a centrifugal pump to a shaft of a drive motor | |
| EP2721301B1 (en) | Submersible pump and assembly method for a submersible pump | |
| US11560891B2 (en) | Electric hydraulic actuator | |
| CN203175845U (en) | Motor/internal gear pump integrated connection structure | |
| CN107620690B (en) | DC quantitative stator permanent magnet type integrated power device | |
| CN210422960U (en) | Diaphragm pump | |
| CN210397089U (en) | Novel roots pump with integrated motor and pump body | |
| CN108591051B (en) | Screw pump | |
| CN107587992B (en) | DC stator excitation type electromechanical liquid coupler | |
| US20150016993A1 (en) | Drill pump with fixed position bushing | |
| CN214742122U (en) | Surface-mounted self-starting sewage pump driven by permanent magnet synchronous motor | |
| RU2742704C1 (en) | Centrifugal pump keyless rotor | |
| WO2006122359A3 (en) | Hydraulic pump assembly | |
| CN216541912U (en) | Hydrostatic centre frame | |
| CN207539091U (en) | A kind of combined type deep-well pump case | |
| CN202900740U (en) | Self-balancing self-locating energy-saving type multi-section type water pump |
Legal Events
| 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 |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |