CN219774345U - Double-screw parallel displacement pump with high sealing performance - Google Patents
Double-screw parallel displacement pump with high sealing performance Download PDFInfo
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- CN219774345U CN219774345U CN202321268939.7U CN202321268939U CN219774345U CN 219774345 U CN219774345 U CN 219774345U CN 202321268939 U CN202321268939 U CN 202321268939U CN 219774345 U CN219774345 U CN 219774345U
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- rubber sleeve
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- 238000007789 sealing Methods 0.000 title claims abstract description 169
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 52
- 238000009434 installation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 241001247986 Calotropis procera Species 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
A double-screw parallel displacement pump with high sealing performance is formed in a shell, a pump cavity is provided with a conveying part and a mounting part, a double screw, a helical blade and a support frame are arranged in the pump cavity, the double screw is provided with a first screw part and a second screw part, the first screw part is arranged in the conveying part and is connected with the helical blade, the support frame is arranged in the conveying part and is connected with the shell through a bolt, the support frame and the first screw part are in sealing connection through a first sealing component, the inner wall of the mounting part and the second screw part are in sealing connection through a second sealing component, the sealing performance of the double screw is better due to the fact that the first sealing rubber sleeve is arranged on the first screw part and the support frame, the second sealing rubber sleeve is arranged on the second screw part and the shell, double sealing is carried out on the double screw, meanwhile, the rolling bearing is arranged, the precision of the double screw is greatly improved, the parallel movement is avoided, the transverse shearing force is avoided, and the damage to materials is reduced.
Description
Technical Field
The utility model relates to a pump body, in particular to a double-screw parallel displacement pump with high sealing performance.
Background
The double-screw pump is a double-suction type non-airtight double-screw pump, wherein a driving screw rod with one end extending out of the pump is driven by a driving device, the driving screw rod and a driven screw rod are provided with threads with different rotation directions, and the driven screw rod is driven by the driving screw rod through a synchronous gear.
The existing double-screw pump works for a long time, the abrasion of parts inside the double-screw pump can cause the insufficient sealing performance of the double-screw pump, the insufficient sealing performance can cause the medium inflow to damage internal parts, the working efficiency is reduced, the manual maintenance cost is too high, and the use requirements of people cannot be well met.
Disclosure of Invention
In view of this, the present utility model provides a twin screw parallel displacement pump having high sealing performance.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a twin-screw parallel displacement pump with high sealing performance, includes shell and drive arrangement, form the pump chamber in the shell, the pump chamber has transport portion and installation department, install twin-screw, helical blade and support frame in the pump chamber, the twin-screw has first screw portion and second screw portion, first screw portion sets up in transport portion and is connected with helical blade, install the support frame in the transport portion, the support frame passes through the bolt and is connected with the shell, the second screw portion sets up in the installation department, the one end that helical blade was kept away from to the second screw portion is connected with drive arrangement, set up first seal assembly between support frame and the first screw portion, set up second seal assembly between the inner wall of installation department and the second screw portion, support frame and first screw portion pass through first seal assembly sealing connection, the inner wall of installation department and second screw portion pass through second seal assembly sealing connection.
Preferably, the first sealing assembly comprises a first sealing rubber sleeve and a first metal support, a first sealing groove is formed in the first sealing rubber sleeve, the first metal support is arranged in the first sealing groove, and the section of the first metal support is in an L-shaped structure.
Preferably, the first metal bracket is provided with a first connecting end and a second connecting end, the first sealing groove corresponds to the first connecting end and the second connecting end of the first metal bracket and is provided with a first positioning part and a second positioning part, the first connecting end and the second connecting end respectively extend into the first positioning part and the second positioning part to be connected with the first sealing rubber sleeve, one side of the first positioning part is provided with a first limiting piece, two ends of the first limiting piece respectively prop against the first sealing rubber sleeve and the second connecting end of the first metal bracket, the first limiting piece limits the position of the first connecting end on the first sealing rubber sleeve, the second positioning part protrudes to form a first limiting end, and the first limiting end limits the position of the second connecting end in the first sealing groove.
Preferably, the first sealing rubber sleeve is provided with a first sealing surface and a second sealing surface, the first screw rod part and the supporting frame are sealed through the first sealing surface, the second sealing surface is formed by protruding towards the first screw rod part, and the first sealing rubber sleeve and the first screw rod part are sealed through the second sealing surface.
Preferably, the second sealing assembly comprises a second sealing rubber sleeve and a second metal support, a second sealing groove is formed in the second sealing rubber sleeve, the second metal support is arranged in the second sealing groove, and the section of the second metal support is in an inverted-L-shaped structure.
Preferably, the second metal bracket is provided with a third connecting end and a fourth connecting end, the third connecting end and the fourth connecting end of the second metal bracket are correspondingly provided with a third positioning part and a fourth positioning part, the third connecting end and the fourth connecting end respectively extend into the third positioning part and the fourth positioning part to be connected with the second sealing rubber sleeve, one side of the third positioning part is provided with a second limiting part, two ends of the second limiting part respectively prop against the second sealing rubber sleeve and the fourth connecting end of the second metal bracket, the second limiting part limits the position of the third connecting end on the second sealing rubber sleeve, the fourth positioning part protrudes to form a second limiting end, the second limiting end limits the position of the fourth connecting end in the second sealing groove, and the second limiting end does not generate transverse shearing force to reduce the damage to materials.
Preferably, the second sealing rubber sleeve is provided with a third sealing surface and a fourth sealing surface, the second screw rod part and the shell are sealed through the third sealing surface, the fourth sealing surface is formed in a protruding mode towards the second screw rod part, and the second sealing rubber sleeve and the second screw rod part are sealed through the fourth sealing surface.
Preferably, the double screw is provided with a driving shaft and a driven shaft, a first rolling bearing and a first gear are arranged on the driving shaft, a second rolling bearing and a second gear are arranged on the driven shaft, the driving shaft and the driven shaft are connected through the first gear and the second gear in a meshed mode, and one end of the driving shaft protrudes upwards to be connected with the driving device.
The utility model has the beneficial effects that: the first sealing rubber sleeve is arranged to seal the first screw rod part and the support frame, the first metal support frame is arranged in the first sealing rubber sleeve to fix the first screw rod part and the support frame, so that the sealing performance of the double screw rod is better, the second sealing rubber sleeve is arranged to seal the second screw rod part and the shell, and the second metal support frame is arranged in the second sealing rubber sleeve to fix the second screw rod part and the shell, so that double sealing is performed on the double screw rod.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the structure of the present utility model;
fig. 3 is an enlarged view at a in fig. 2.
Reference numerals:
the driving device comprises a shell, 2, a driving device, 3, a pump cavity, 4, a conveying part, 5, a mounting part, 6, a double screw, 7, a helical blade, 8, a supporting frame, 9, a first screw part, 10, a second screw part, 11, a first sealing component, 12, a second sealing component, 14, a first metal bracket, 16, a second metal bracket, 17, a first rolling bearing, 18, a second rolling bearing, 19, a first sealing rubber sleeve, 20, a first sealing groove, 21, a first connecting end, 22, a second connecting end, 23, a first positioning part, 24, a second positioning part, 25, a first limiting piece, 26, a first limiting end, 27, a first sealing surface, 28, a second sealing surface, 29, a second sealing rubber sleeve, 30, a second sealing groove, 31, a third connecting end, 32, a fourth connecting end, 33, a third positioning part, 34, a fourth positioning part, 35, a second limiting piece, 36, a second limiting end, 37, a third sealing surface, 38, a fourth sealing surface, 39, a driven shaft, 40, a first gear, a second gear, 41 and a driving shaft.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will be further described with reference to the drawings.
The utility model provides the following technical scheme:
as shown in fig. 1-3, a double-screw parallel displacement pump with high sealing performance comprises a shell 1 and a driving device 2, wherein a pump cavity 3 is formed in the shell 1, the pump cavity 3 is provided with a conveying part 4 and a mounting part 5, a double screw 6, a helical blade 7 and a supporting frame 8 are arranged in the pump cavity 3, the double screw 6 is provided with a first screw part 9 and a second screw part 10, the first screw part 9 is arranged in the conveying part 4 and is connected with the helical blade 7, the supporting frame 8 is arranged in the conveying part 4 and is connected with the shell 1 through bolts, the second screw part 10 is arranged in the mounting part 5, one end of the second screw part 10 far away from the helical blade 7 is connected with the driving device 2, a first sealing component 11 is arranged between the supporting frame 8 and the first screw part 9, a second sealing component 12 is arranged between the inner wall of the mounting part 5 and the second screw part 10, the support frame 8 and the first screw rod part 9 are in sealing connection through the first sealing component 11, the inner wall of the installation part 5 and the second screw rod part 10 are in sealing connection through the second sealing component 12, specifically, in the design, the first sealing rubber sleeve 9 is arranged to seal the first screw rod part 9 and the support frame 8, the first metal bracket 14 is arranged in the first sealing rubber sleeve 9 to fix the first screw rod part 9, so that the sealing performance of the double screw rod 6 is better, the second sealing rubber sleeve 29 is arranged to seal the second screw rod part 10 and the shell 1, the second metal bracket 16 is arranged in the second sealing rubber sleeve 29 to fix the second screw rod part 10, double sealing is carried out on the double screw rod 6, parallel movement is realized, and transverse shearing force is not generated, the damage to the material is reduced.
Further, the first sealing assembly 11 includes a first sealing rubber sleeve 19 and a first metal support 14, a first sealing groove 20 is formed in the first sealing rubber sleeve 19, the first metal support 14 is disposed in the first sealing groove 20, the section of the first metal support 14 is in an L-shaped structure, and the first metal support 14 is firmly fixed in the first sealing rubber sleeve 9 through the arrangement of the first sealing groove 20, so that the first sealing rubber sleeve 19 is supported.
Further, the first metal bracket 14 has a first connection end 21 and a second connection end 22, the first seal groove 20 corresponds to the first connection end 21 and the second connection end 22 of the first metal bracket 14, a first positioning portion 23 and a second positioning portion 24 are provided, the first connection end 21 and the second connection end 22 respectively extend into the first positioning portion 23 and the second positioning portion 24 to be connected with the first sealing rubber sleeve 19, a first limiting piece 25 is provided on one side of the first positioning portion 23, two ends of the first limiting piece 25 respectively support against the first sealing rubber sleeve 19 and the second connection end 22 of the first metal bracket 14, the first limiting piece 25 limits the position of the first connection end 21 on the first sealing rubber sleeve 19, a first limiting end 26 is formed by protruding on the second positioning portion 24, the first limiting end 26 limits the position of the second connection end 22 in the first seal groove 20, the first metal bracket 14 is supported by the first limiting piece 25, the first metal bracket 14 can be more stable like the first sealing rubber sleeve 9, and the first metal bracket 14 is fixed like the first sealing rubber sleeve 9.
Further, the first sealing rubber sleeve 19 has a first sealing surface 27 and a second sealing surface 28, the first screw portion 9 and the support frame 8 are sealed by the first sealing surface 27, the second sealing surface 28 is formed to protrude toward the first screw portion 9, the first sealing rubber sleeve 19 and the first screw portion 9 are sealed by the second sealing surface 28, and the first sealing rubber sleeve 9 is arranged to seal the support frame 8 and the first screw portion 9, so that inflow of media is prevented.
Further, the second sealing assembly 12 includes a second sealing rubber sleeve 29 and a second metal support 16, a second sealing groove 30 is formed in the second sealing rubber sleeve 29, the second metal support 16 is disposed in the second sealing groove 30, the section of the second metal support 16 is in an inverted L-shaped structure, and the second metal support 16 is firmly fixed in the second sealing rubber sleeve 29 through the arrangement of the second sealing groove 30, so as to support the second sealing rubber sleeve 29, and meanwhile, the second sealing rubber sleeve 29 and the second metal support 16 are prolonged, so that the sealing and stability of the second sealing rubber sleeve 29 are enhanced to a greater extent, and the second sealing assembly is not easy to swing.
Further, the second metal bracket 16 has a third connecting end 31 and a fourth connecting end 32, the second sealing groove 30 corresponds to the third connecting end 31 and the fourth connecting end 32 of the second metal bracket 16 and is provided with a third positioning portion 33 and a fourth positioning portion 34, the third connecting end 31 and the fourth connecting end 32 respectively extend into the third positioning portion 33 and the fourth positioning portion 34 to be connected with the second sealing rubber sleeve 29, one side of the third positioning portion 33 is provided with a second limiting piece 35, two ends of the second limiting piece 35 respectively prop against the second sealing rubber sleeve 29 and the fourth connecting end 32 of the second metal bracket 16, the second limiting piece 35 limits the position of the third connecting end 31 on the second sealing rubber sleeve 29, the fourth positioning portion 34 protrudes to form a second limiting end 36, the second limiting end 36 limits the position of the fourth connecting end 32 in the second sealing groove 30, the second metal bracket 16 is supported by the second limiting piece 35, the second metal bracket 16 can be more stable like the second sealing rubber sleeve 29, and the second metal bracket 16 can be fixed like the second sealing rubber sleeve 29.
Further, the second sealing rubber bush 29 has a third sealing surface 37 and a fourth sealing surface 38, the second screw portion 10 and the housing 1 are sealed by the third sealing surface 37, the fourth sealing surface 38 is formed to protrude toward the second screw portion 10, the second sealing rubber bush 29 and the second screw portion 10 are sealed by the fourth sealing surface 38, and the housing 1 and the second screw portion 10 are sealed by the provision of the second sealing rubber bush 29, so that inflow of a medium is prevented.
Further, the twin screw 6 has a driving shaft 39 and a driven shaft 40, the driving shaft 39 is provided with a first rolling bearing 17 and a first gear 41, the driven shaft 40 is provided with a second rolling bearing 18 and a second gear 42, the driving shaft 39 and the driven shaft 40 are in meshed connection through the first gear 41 and the second gear 42, one end of the driving shaft 39 protrudes upwards to be connected with the driving device 2, and the driving device 2 is arranged on the driving shaft 39, so that the driven shaft 40 is driven to move when the driving shaft 39 moves.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a twin-screw parallel displacement pump with high sealing performance, includes shell and drive arrangement, form the pump chamber in the shell, the pump chamber has transport portion and installation department, install twin-screw, helical blade and support frame in the pump chamber, the twin-screw has first screw portion and second screw portion, first screw portion sets up in transport portion and is connected with helical blade, install the support frame in the transport portion, the support frame passes through the bolt and is connected with the shell, second screw portion sets up in the installation department, helical blade's one end is kept away from to second screw portion and drive arrangement is connected, its characterized in that: the support frame and the first screw rod portion are connected in a sealing mode through the first sealing component, and the inner wall of the installation portion is connected with the second screw rod portion in a sealing mode through the second sealing component.
2. A twin screw parallel displacement pump having high sealing performance as claimed in claim 1, wherein: the first sealing assembly comprises a first sealing rubber sleeve and a first metal support, a first sealing groove is formed in the first sealing rubber sleeve, the first metal support is arranged in the first sealing groove, and the section of the first metal support is in an L-shaped structure.
3. A twin screw parallel displacement pump having high sealing performance as claimed in claim 2, wherein: the first metal support is provided with a first connecting end and a second connecting end, the first sealing groove corresponds to the first connecting end and the second connecting end of the first metal support, a first positioning part and a second positioning part are arranged on the first connecting end and the second connecting end of the first metal support, the first connecting end and the second connecting end respectively extend into the first positioning part and the second positioning part to be connected with the first sealing rubber sleeve, one side of the first positioning part is provided with a first limiting part, two ends of the first limiting part respectively prop against the first sealing rubber sleeve and the second connecting end of the first metal support, the first limiting part limits the position of the first connecting end on the first sealing rubber sleeve, a first limiting end is formed on the second positioning part in a protruding mode, and the first limiting end limits the position of the second connecting end in the first sealing groove.
4. A twin screw parallel displacement pump having high sealing performance as claimed in claim 2, wherein: the first sealing rubber sleeve is provided with a first sealing surface and a second sealing surface, the first screw rod part and the supporting frame are sealed through the first sealing surface, the second sealing surface is formed by protruding towards the first screw rod part, and the first sealing rubber sleeve and the first screw rod part are sealed through the second sealing surface.
5. A twin screw parallel displacement pump having high sealing performance as claimed in claim 1, wherein: the second seal assembly comprises a second seal rubber sleeve and a second metal support, a second seal groove is formed in the second seal rubber sleeve, the second metal support is arranged in the second seal groove, and the section of the second metal support is in an inverted-L-shaped structure.
6. A twin screw parallel displacement pump having high sealing performance as claimed in claim 5, wherein: the second metal support is provided with a third connecting end and a fourth connecting end, the second sealing groove corresponds to the third connecting end and the fourth connecting end of the second metal support and is provided with a third positioning part and a fourth positioning part, the third connecting end and the fourth connecting end respectively extend into the third positioning part and the fourth positioning part to be connected with the second sealing rubber sleeve, one side of the third positioning part is provided with a second limiting part, two ends of the second limiting part respectively prop against the second sealing rubber sleeve and the fourth connecting end of the second metal support, the second limiting part limits the position of the third connecting end on the second sealing rubber sleeve, the fourth positioning part protrudes to form a second limiting end, and the second limiting end limits the position of the fourth connecting end in the second sealing groove.
7. A twin screw parallel displacement pump having high sealing performance as claimed in claim 5, wherein: the second sealing rubber sleeve is provided with a third sealing surface and a fourth sealing surface, the second screw rod part and the shell are sealed through the third sealing surface, the fourth sealing surface is formed in a protruding mode towards the second screw rod part, and the second sealing rubber sleeve and the second screw rod part are sealed through the fourth sealing surface.
8. A twin screw parallel displacement pump having high sealing performance as claimed in claim 1, wherein: the double screw is provided with a driving shaft and a driven shaft, a first rolling bearing and a first gear are arranged on the driving shaft, a second rolling bearing and a second gear are arranged on the driven shaft, the driving shaft and the driven shaft are connected through the first gear and the second gear in a meshed mode, and one end of the driving shaft protrudes upwards to be connected with a driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321268939.7U CN219774345U (en) | 2023-05-24 | 2023-05-24 | Double-screw parallel displacement pump with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321268939.7U CN219774345U (en) | 2023-05-24 | 2023-05-24 | Double-screw parallel displacement pump with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774345U true CN219774345U (en) | 2023-09-29 |
Family
ID=88131585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321268939.7U Active CN219774345U (en) | 2023-05-24 | 2023-05-24 | Double-screw parallel displacement pump with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774345U (en) |
-
2023
- 2023-05-24 CN CN202321268939.7U patent/CN219774345U/en active Active
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| GR01 | Patent grant |