CN208503007U - A kind of lobed rotor pump - Google Patents
A kind of lobed rotor pump Download PDFInfo
- Publication number
- CN208503007U CN208503007U CN201820797940.1U CN201820797940U CN208503007U CN 208503007 U CN208503007 U CN 208503007U CN 201820797940 U CN201820797940 U CN 201820797940U CN 208503007 U CN208503007 U CN 208503007U
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- pump housing
- pump
- positioning
- ring
- driven
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Abstract
A kind of lobed rotor pump of the utility model, it include the pump housing, pump cover, driving shaft, driven shaft, transmission case, power rotor, driven rotor is mainly technically characterized by offering positioning sleeve (311,411) in the end face outside of the bearing gland (31,41) in driving shaft and driven shaft right end bearing, and the outer ring surface (312,412) of the positioning sleeve cooperates with active axocoel set on the pump housing and the external port from active axocoel set inner hole (11a, 11b) respectively；Corresponding power rotor and driven rotor offer stairstepping rabbet groove (20a, 20b) on pump cover (2) right side respectively, it is fixed with positioning ring (21a, 21b) on the ladder rabbet groove (20a, 20b), outer ring surface right end and the pump housing (1) the internal chamber wall cooperation of positioning ring (21a, 21b)；The positioning sleeve and positioning ring is annulus part, easily guarantee machining accuracy, transmission case (5) carries out cooperation positioning by positioning sleeve and the pump housing (1), pump cover (2) carries out cooperation positioning by positioning ring and the pump housing (1), assembly connection is greatly facilitated, guarantees the fit clearance between rotor and pump housing inner cavity surface.
Description
Technical field
The utility model relates to a kind of lobed rotor pumps.
Background technique
Lobed rotor pump includes the pump housing, pump cover, driving shaft, driven shaft, and transmission case is mounted on the driving shaft of pump housing inner cavity
Power rotor, be mounted on the intracorporal drive shaft bearing device of case, the driving gear being mounted in cabinet on driving shaft is mounted on
The bearing arrangement on driving shaft shaft end in pump cover, setting are mounted on driving shaft the mechanically-sealing apparatus between the pump housing, installation
Driven rotor on the driven shaft of pump housing inner cavity is mounted on the intracorporal driven shaft bearing arrangement of case, is mounted on driven shaft in cabinet
On driven gear, the bearing arrangement being mounted on the driven shaft shaft end in pump cover, setting be mounted on driven shaft between the pump housing
Mechanically-sealing apparatus, pump housing left end is bolted with pump cover to be connected, and pump housing right end and transmission case are solid by bolt
Surely be connected, the right end of transmission case by end cap seal,
Above-mentioned prior art lobed rotor pump is in assembly, since nothing is fixed between the pump housing and front cover between the pump housing and cabinet
Position device needs the gap between adjustment rotor and the pump housing repeatedly, assembly is inconvenient, and due to not in this way in assembly
The gap between the pump housing and rotor can be accurately adjusted, to influence the service performance of pump.And between the pump housing and cabinet and the pump housing
Positioning pin is opened up between front cover and carries out assembly positioning, then the position dimension for needing positioning pin to open up is very precisely, but general
Machining mode, i.e., the position dimension required precision of positioning pin is difficult to ensure by the machining mode of scribing line punching.
In addition the above-mentioned prior art, since its pump cover and driving shaft, driven between centers are sealed by outside framework oil seal,
Medium easily passes through outside framework oil seal and enters in bearing when use, causes bearing lubrication bad, reduces the service life, increase maintenance at
This.
Utility model content
The purpose of this utility model is to improve in view of the above shortcomings of the prior art, is provided a kind of convenient for assembly
Lobed rotor pump.
The utility model lobed rotor pump, includes the pump housing 1, pump cover 2, driving shaft 3, driven shaft 4, and transmission case 5 is mounted on
Power rotor 30 on the driving shaft of pump housing inner cavity, the driving shaft right end bearing 32 being mounted in transmission case, is mounted in transmission case
Driving gear 34 on driving shaft, the driving shaft left end bearing 33 being mounted in pump cover, setting are mounted on driving shaft and the pump housing
Active axocoel covers the mechanically-sealing apparatus 35 between 10a；The driven rotor 40 being mounted on the driven shaft of pump housing inner cavity, is mounted on transmission
Driven shaft right end bearing 42 in case, the driven gear 44 being mounted in transmission case on driven shaft are mounted on driven in pump cover
Axis left end bearing 43, setting are mounted on the mechanically-sealing apparatus 45 on driven shaft between the driven axocoel set 10b of the pump housing；The pump housing 1 is left
End is bolted with pump cover 2 to be connected, and 1 right end of the pump housing is bolted with transmission case 5 to be connected, feature
It is:
Positioning sleeve 311 is offered in the end face outside of the bearing gland 31 of driving shaft right end bearing 32, the positioning sleeve 311
Outer ring surface 312 and the pump housing on active axocoel set 10a inner hole 11a external port cooperate；In the bearing of driven shaft right end bearing 42
Positioning sleeve 411 is offered in the end face outside of gland 41, driven axocoel covers 10b on the outer ring surface 412 and the pump housing of the positioning sleeve 411
The external port of inner hole 11b cooperates.Since the positioning sleeve 311,411 opened up in bearing gland 31,41 end face outsides is that annulus part adds
Work, is easily guaranteed that machining accuracy and cooperation precision, and transmission case 5 passes through bearing gland 31, the positioning sleeve opened up in 41 end face outsides
311,411 cooperation positioning is carried out with the pump housing 1, greatly facilitates transmission case 5 and the cooperation of the pump housing 1 is located by connecting, guarantee driving shaft
3, the cooperation precision of driven shaft 4 and the pump housing guarantees the fit clearance between rotor and pump housing inner cavity surface.
Corresponding power rotor 30 offers stairstepping rabbet groove 20a on 2 right side of pump cover, in ladder rabbet groove 20a
On be fixed with positioning ring 21a, 2 right side of pump cover is stretched out in the right side of positioning ring 21a, and the right end of positioning ring 21a protrudes into the pump housing
211 right end of outer ring surface and 1 internal chamber wall of the pump housing of 1, positioning ring 21a cooperate；Corresponding driven rotor 40 opens up on 2 right side of pump cover
There is stairstepping rabbet groove 20b, positioning ring 21b is fixed on ladder rabbet groove 20b, the right side of positioning ring 21b is stretched out
2 right side of pump cover, the right end of positioning ring 21b protrude into the pump housing 1, and 212 right end of outer ring surface and 1 internal chamber wall of the pump housing of positioning ring 21b is matched
It closes.Since positioning ring 21a, 21b are the processing of annulus part, it is easily guaranteed that machining accuracy and cooperation precision, pump cover 2 passes through positioning ring
21a, 21b and the pump housing 1 carry out cooperation positioning, greatly facilitate pump cover 2 and the cooperation of the pump housing 1 is located by connecting, guarantee driving shaft 3,
The cooperation precision of driven shaft 4 and the pump housing guarantees the fit clearance between rotor and pump housing inner cavity surface.
To improve leakproofness between pump cover 2 and driving shaft 3, driven shaft 4, more effectively prevents medium from entering in bearing, cause axis
Hold insufficient lubrication.Sealing inner sleeve 37 and hermetically sealed case 38 are equipped between the drive shaft bearing cover for seat 23 of pump cover on driving shaft 3,
It seals and is equipped with sealing ring between inner sleeve 37 and 3 mating surface of driving shaft, be respectively equipped with sealing ring on the inside and outside anchor ring of hermetically sealed case 38；
It is equipped with sealing inner sleeve 47 and hermetically sealed case 48 between the driven shaft bearing block of pump cover set 24 on driven shaft 4, in sealing inner sleeve 47
It is equipped with sealing ring between 4 mating surface of driven shaft, is respectively equipped with sealing ring on the inside and outside anchor ring of hermetically sealed case 48.
Detailed description of the invention
Fig. 1 is the utility model embodiment structural schematic diagram.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the bearing gland 31 with positioning sleeve 311,411,41 structural schematic diagrams.
Fig. 4 is positioning ring 21a, 21b structural schematic diagram.
Specific embodiment
The utility model lobed rotor pump, includes the pump housing 1, pump cover 2, driving shaft 3, driven shaft 4, and transmission case 5 is mounted on
Power rotor 30 on the driving shaft of pump housing inner cavity, the driving shaft right end bearing 32 being mounted in transmission case, is mounted in transmission case
Driving gear 34 on driving shaft, the driving shaft left end bearing 33 being mounted in pump cover, setting are mounted on driving shaft and the pump housing
Active axocoel covers the mechanically-sealing apparatus 35 between 10a；The driven rotor 40 being mounted on the driven shaft of pump housing inner cavity, is mounted on transmission
Driven shaft right end bearing 42 in case, the driven gear 44 being mounted in transmission case on driven shaft are mounted on driven in pump cover
Axis left end bearing 43, setting are mounted on the mechanically-sealing apparatus 45 on driven shaft between the driven axocoel set 10b of the pump housing；The pump housing 1 is left
End is bolted with pump cover 2 to be connected, and 1 right end of the pump housing is bolted with transmission case 5 to be connected, feature
It is:
Positioning sleeve 311 is offered in the end face outside of the bearing gland 31 of driving shaft right end bearing 32, the positioning sleeve 311
Outer ring surface 312 and the pump housing on active axocoel set 10a inner hole 11a external port cooperate；In the bearing of driven shaft right end bearing 42
Positioning sleeve 411 is offered in the end face outside of gland 41, driven axocoel covers 10b on the outer ring surface 412 and the pump housing of the positioning sleeve 411
The external port of inner hole 11b cooperates.
Corresponding power rotor 30 offers stairstepping rabbet groove 20a on 2 right side of pump cover, in ladder rabbet groove 20a
On be fixed with positioning ring 21a, 2 right side of pump cover is stretched out in the right side of positioning ring 21a, and the right end of positioning ring 21a protrudes into the pump housing
211 right end of outer ring surface and 1 internal chamber wall of the pump housing of 1, positioning ring 21a cooperate；Corresponding driven rotor 40 opens up on 2 right side of pump cover
There is stairstepping rabbet groove 20b, positioning ring 21b is fixed on ladder rabbet groove 20b, the right side of positioning ring 21b is stretched out
2 right side of pump cover, the right end of positioning ring 21b protrude into the pump housing 1, and 212 right end of outer ring surface and 1 internal chamber wall of the pump housing of positioning ring 21b is matched
It closes.
Sealing inner sleeve 37 and hermetically sealed case 38 are equipped between the drive shaft bearing cover for seat 23 of pump cover on driving shaft 3, close
It seals and is equipped with sealing ring between inner sleeve 37 and 3 mating surface of driving shaft, be respectively equipped with sealing ring on the inside and outside anchor ring of hermetically sealed case 38；?
Sealing inner sleeve 47 and hermetically sealed case 48 is equipped on driven shaft 4 between the driven shaft bearing block of pump cover set 24, sealing inner sleeve 47 with
It is equipped with sealing ring between 4 mating surface of driven shaft, is respectively equipped with sealing ring on the inside and outside anchor ring of hermetically sealed case 48.
Claims (2)
1. a kind of lobed rotor pump includes the pump housing (1), pump cover (2), driving shaft (3), driven shaft (4), transmission case (5), installation
Power rotor (30) on the driving shaft of pump housing inner cavity, the driving shaft right end bearing (32) being mounted in transmission case, is mounted on biography
Driving gear (34) in dynamic case on driving shaft, the driving shaft left end bearing (33) being mounted in pump cover, setting are mounted on actively
Mechanically-sealing apparatus (35) on axis between pump housing active axocoel set (10a)；The slave turn being mounted on the driven shaft of pump housing inner cavity
Sub (40), the driven shaft right end bearing (42) being mounted in transmission case, the driven gear being mounted in transmission case on driven shaft
(44), the driven shaft left end bearing (43) being mounted in pump cover, setting are mounted on driven shaft and the driven axocoel set (10b) of the pump housing
Between mechanically-sealing apparatus (45)；The pump housing (1) left end is bolted with pump cover (2) and is connected, the pump housing (1) right end and biography
Dynamic case (5), which are bolted, to be connected, it is characterized in that:
Positioning sleeve (311), the positioning sleeve are offered in the end face outside of the bearing gland (31) of driving shaft right end bearing (32)
(311) external port of active axocoel set (10a) inner hole (11a) cooperates on outer ring surface (312) and the pump housing；In driven shaft right end axis
It holds and offers positioning sleeve (411) in the end face outside of the bearing gland (41) of (42), the outer ring surface (412) of the positioning sleeve (411)
Match with the external port of axocoel set (10b) inner hole (11b) driven on the pump housing；
Corresponding power rotor (30) offer ladder rabbet groove (20a) on pump cover (2) right side, in the ladder rabbet groove
It is fixed on (20a) positioning ring (21a), pump cover (2) right side is stretched out in the right side of positioning ring (21a), positioning ring (21a)
Right end protrudes into the pump housing (1), and outer ring surface (211) right end and the pump housing (1) internal chamber wall of positioning ring (21a) cooperate；Corresponding driven rotor
(40) ladder rabbet groove (20b) is offered on pump cover (2) right side, is fixed with positioning on the ladder rabbet groove (20b)
Pump cover (2) right side is stretched out in the right side of ring (21b), positioning ring (21b), and the right end of positioning ring (21b) protrudes into the pump housing (1), fixed
Outer ring surface (212) right end and the pump housing (1) internal chamber wall of position ring (21b) cooperate.
2. lobed rotor pump according to claim 1, it is characterized in that:
Sealing inner sleeve (37) and hermetically sealed case (38) are equipped between the drive shaft bearing cover for seat (23) of pump cover on driving shaft (3),
It is equipped with sealing ring between sealing inner sleeve (37) and driving shaft (3) mating surface, is set respectively on the inside and outside anchor ring of hermetically sealed case (38)
There is sealing ring；Sealing inner sleeve (47) and hermetically sealed case are equipped between the driven shaft bearing block set (24) of pump cover on driven shaft (4)
(48), it is equipped with sealing ring between sealing inner sleeve (47) and driven shaft (4) mating surface, divides on the inside and outside anchor ring of hermetically sealed case (48)
It She You not sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797940.1U CN208503007U (en) | 2018-05-28 | 2018-05-28 | A kind of lobed rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797940.1U CN208503007U (en) | 2018-05-28 | 2018-05-28 | A kind of lobed rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503007U true CN208503007U (en) | 2019-02-15 |
Family
ID=65293602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820797940.1U Active CN208503007U (en) | 2018-05-28 | 2018-05-28 | A kind of lobed rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336102A (en) * | 2020-04-24 | 2020-06-26 | 浙江博大泵业有限公司 | Quick disassembly structure of displacement pump |
| CN111997897A (en) * | 2020-09-25 | 2020-11-27 | 兰州理工大学 | Cam type gas circulating pump for fuel cell |
-
2018
- 2018-05-28 CN CN201820797940.1U patent/CN208503007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336102A (en) * | 2020-04-24 | 2020-06-26 | 浙江博大泵业有限公司 | Quick disassembly structure of displacement pump |
| CN111336102B (en) * | 2020-04-24 | 2024-05-28 | 浙江博大泵业有限公司 | Quick disassembly structure of volumetric pump |
| CN111997897A (en) * | 2020-09-25 | 2020-11-27 | 兰州理工大学 | Cam type gas circulating pump for fuel cell |
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