CN202165279U - Pump - Google Patents
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- Publication number
- CN202165279U CN202165279U CN2011202544416U CN201120254441U CN202165279U CN 202165279 U CN202165279 U CN 202165279U CN 2011202544416 U CN2011202544416 U CN 2011202544416U CN 201120254441 U CN201120254441 U CN 201120254441U CN 202165279 U CN202165279 U CN 202165279U
- Authority
- CN
- China
- Prior art keywords
- bearing assembly
- assembly
- rotating shaft
- thrust bearing
- radial bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a pump, which belongs to the technical field of pumps. A bearing assembled on a rotating shaft of an existing pump can hardly adapt to axial moving generated by a rotor and the rotating shaft during working of the pump. A rotating shaft of the pump is provided with a thrust bearing assembly and a shaft sleeve assembly from far to near relative to a stator, and a radial bearing assembly is provided for the thrust bearing assembly and the shaft sleeve assembly. The shaft sleeve assembly is matched with the radial bearing assembly in radial sliding mode, and the thrust bearing assembly is matched with the radial bearing assembly in axial sliding mode. By assembling the thrust bearing assembly, the shaft sleeve assembly and the radial bearing assembly on the rotating shaft, the thrust bearing assembly and the radial bearing assembly can be matched to form a thrust sliding bearing which bears axial force, and the shaft sleeve assembly can be matched with the radial bearing assembly to form a sliding bearing which bears radial force, thereby guaranteeing normal rotating of the stator and simultaneously enabling the rotating shaft to float along the axial direction in working, adapt to change of power and be capable of working efficiently.
Description
Technical field
The utility model belongs to the technical field of pump, specifically is a kind of pump.
Background technique
Pump comprises the pump housing, motor, impeller, and the pump housing is connected on the motor and has import, outlet and the pump chamber between import and outlet, and motor comprises stator, rotor; Assemble rotating shaft on the rotor; Running in bearings is to carry rotor rotation in the rotating shaft, and impeller is positioned at pump chamber and is installed in the front end of rotating shaft, and mostly the existing bearing that is assemblied in the rotating shaft is structural types such as bearing shell, axle sleeve; Be difficult to adapt to moving axially that pump rotor and rotating shaft when work produce, influence the efficient operation of pump.
Summary of the invention
The technical problem that the utility model will solve and the technical assignment of proposition are to overcome existing bearing to be difficult to adapt to the axially movable defective that pump rotor and rotating shaft when work produce, and a kind of pump that can efficient operation is provided.
For reaching the purpose of the utility model; The pump of the utility model comprises the pump housing, motor, impeller; The described pump housing is connected on the motor and has import, outlet and the pump chamber between import and outlet, and described motor comprises stator, rotor, assembles rotating shaft on the described rotor; Described impeller is positioned at pump chamber and is installed in the front end of said rotating shaft, it is characterized in that:
Assemble in the described rotating shaft with respect to described stator by nearly extremely thrust bearing assembly and sleeve assembly far away; And be described thrust bearing assembly and sleeve assembly configuration radial bearing assembly; Described sleeve assembly radially slides with described radial bearing assembly and cooperates, described thrust bearing assembly and the axial sliding fit of described radial bearing assembly.
As the optimization technique measure; Described thrust bearing assembly comprises the forward thrust bearing unit; Described sleeve assembly comprises the front shaft sleeve assembly; Described radial bearing assembly comprises preceding radial bearing assembly; Described forward thrust bearing unit, front shaft sleeve assembly are positioned at the front side of said stator and are assemblied in successively forward in the described rotating shaft, and described front shaft sleeve assembly radially slides with described preceding radial bearing assembly and cooperates described forward thrust bearing unit and the axial sliding fit of preceding radial bearing assembly.Further, between the described pump housing and described stator, be provided with pump cover, described preceding radial bearing assembly is fixed on the described pump cover.
As the optimization technique measure; Described thrust bearing assembly comprises the back thrust bearing assembly; Described sleeve assembly comprises the rear axle housing assembly; Described radial bearing assembly comprises back radial bearing assembly; Described back thrust bearing assembly, rear axle housing assembly are positioned at the rear side of said stator and are assemblied in successively backward in the described rotating shaft, and described rear axle housing assembly radially slides with described back radial bearing assembly and cooperates, described back thrust bearing assembly and back radial bearing assembly axial sliding fit.Further, described back radial bearing assembly is assemblied in the rear end of said stator through a gland.Then, put seal ring between described gland and the back shroud.What is more, offer tapped hole on the described gland and with seal plug with the tapped hole shutoff, be positioned at the tail-hood in the said gland outside in the clamping of the rear end of said stator, offer the through hole of corresponding said seal plug on the described tail-hood.
As the optimization technique measure, described thrust bearing assembly, sleeve assembly and described rotating shaft moment of torsion transmission assembling.
As the optimization technique measure, described thrust bearing assembly, sleeve assembly, radial bearing assembly are that composite abrasion resistance material constitutes on skeleton, and described being slidingly matched is being slidingly matched between the corresponding high-abrasive material.
As the optimization technique measure, described sleeve assembly is placed in the described rotating shaft and between described sleeve assembly and rotating shaft and establishes middleware.
The beneficial effect of the utility model is:
At first; Through in rotating shaft, assembling thrust bearing assembly, sleeve assembly, radial bearing assembly, make thrust bearing assembly cooperate formation to bear the thrust slide bearing of axial force with the radial bearing assembly, sleeve assembly cooperates the sliding bearing that constitutes bearing radial force with the radial bearing assembly; Thereby when guaranteeing the stator normal rotation; Can make rotating shaft when work, can float vertically, be adapted to the variation of power, can efficient operation.
Secondly; Constitute housing by sleeve and front shroud, back shroud, make housing become the branch body structure, make all stamped easily of sleeve, front shroud, back shroud; Technology is simple; And front shroud, back shroud be connected (like welding) with the sealed at both ends of sleeve, shell, and be easy to implement, makes the manufacture cost of whole stator be minimized.
Description of drawings
Fig. 1 is the generalized section of a kind of structure of the utility model.
Fig. 2 is the generalized section of the stator among Fig. 1.
Fig. 3 is the A portion enlarged view of Fig. 1.
Fig. 4 is the B portion enlarged view of Fig. 1.
Label declaration among the figure:
The 1-pump housing, 11-import, 12-outlet, 13-pump chamber;
The 2-motor, 21-stator, 21a-shell, 21b-staor winding, 21c-sleeve, 21d-front shroud, 21e-front shroud axially locating portion, 21f-front shroud radial location portion, 21g-back shroud, 21h-back shroud axially locating portion, 21i-back shroud radial location portion; The 22-rotor, 22a-forward thrust bearing unit, radial bearing assembly before the 22b-front shaft sleeve assembly, 22c-; The 22d-middleware, 22e-shaft block ring, thrust bearing assembly behind the 22f-, 22g-rear axle housing assembly; Radial bearing assembly behind the 22h-, 22i-middleware, 22j-shaft block ring, 23-rotating shaft;
The 3-impeller; The 4-pump cover; The 5-seal ring; The 6-gland; The 7-seal ring; The 8-seal plug; The 9-tail-hood.
Embodiment
Below in conjunction with Figure of description the utility model is further specified.
The pump of the utility model; As shown in Figure 1; It comprises the pump housing 1, motor 2, impeller 3, and the pump housing 1 is connected on the motor 2 and has import 11, outlet 12 and the pump chamber 13 between import 11 and outlet 12, and motor 2 comprises stator 21, rotor 22; Assembling rotating shaft 23 on the rotor 22; Impeller 3 is positioned at pump chamber 13 and is installed in the front end of rotating shaft 23, and stator 21 (referring to Fig. 2) comprises shell 21a, staor winding 21b, sleeve 21c, front shroud 21d, back shroud 21g, and sleeve 21c is positioned at the inboard of shell 21a; The two ends of sleeve 21c are connected with the sealed at both ends of shell 21a through front shroud 21d, back shroud 21g respectively, and staor winding 21b is wound in the confined space of shell 21a, sleeve 21c, front shroud 21d, back shroud 21g formation.
The pump of the utility model; Constitute housing by sleeve 21c and front shroud 21d, back shroud 21g, make housing become the branch body structure, make all stamped easily of sleeve, front shroud, back shroud; Technology is simple; And front shroud, back shroud be connected with the sealed at both ends of sleeve, shell, and be easy to implement, makes the manufacture cost of whole stator be minimized.
The pump housing 1 is connected the front end of shell 21a through fastening piece, between the pump housing 1 and stator 21, is provided with pump cover 4, is provided with seal ring 5 between pump cover 4 and the stator 21, offers the through hole that supplies rotating shaft 23 to pass on the pump cover 4.Further; Referring to Fig. 4; The position that is positioned at stator 21 front sides in the rotating shaft 23 is installed forward thrust bearing unit 22a and front shaft sleeve assembly 22b forward successively; Radial bearing assembly 22c before being fixed with on the pump cover 4, front shaft sleeve assembly 22b radially slide to cooperate with preceding radial bearing assembly 22c and constitute radial sliding bearing, and forward thrust bearing unit 22a and front shaft sleeve assembly 22b axial sliding fit constitute axial plain bearing.Concrete, front shaft sleeve assembly 22b is placed in the rotating shaft 23 and between front shaft sleeve assembly 22b and rotating shaft 23 and establishes middleware 22d, makes front shaft sleeve assembly 22b and rotating shaft 23 reliable connection; Forward thrust bearing unit 22a, front shaft sleeve assembly 22b, preceding radial bearing assembly 22c are that composite abrasion resistance material constitutes on skeleton; Being slidingly matched is being slidingly matched between the corresponding high-abrasive material (like silicon carbide, graphite or pottery), available in case of necessity Cock screw with corresponding high-abrasive material location or reinforcing on skeleton (promptly is like this like preceding radial bearing assembly).The shaft block ring 22e that keeps out front shaft sleeve assembly 22b front end is installed in the rotating shaft 23 to be used for forward thrust bearing unit 22a, front shaft sleeve assembly 22b axial limiting.
Referring to Fig. 3; The position that is positioned at stator 21 rear sides in the rotating shaft 23 is installed back thrust bearing assembly 22f and rear axle housing assembly 22g backward successively; Rear end at stator 21 is equipped with back radial bearing assembly 22h through gland 6 (gland can be connected on the shell through fastening piece such as bolt); Rear axle housing assembly 22g radially slides to cooperate with back radial bearing assembly 22h and constitutes radial sliding bearing, and back thrust bearing assembly 22f and rear axle housing assembly 22g axial sliding fit constitute axial plain bearing.Concrete, rear axle housing assembly 22g is placed in the rotating shaft 23 and between rear axle housing assembly 22g and rotating shaft 23 and establishes middleware 22i, makes rear axle housing assembly 22g and rotating shaft 23 reliable connection.Back thrust bearing assembly 22f, rear axle housing assembly 22g, back radial bearing assembly 22h are that composite abrasion resistance material constitutes on skeleton; Being slidingly matched is being slidingly matched between the corresponding high-abrasive material, and available in case of necessity Cock screw is with corresponding high-abrasive material location or reinforce on skeleton (promptly is like this like back radial bearing assembly).The shaft block ring 22j that keeps out rear axle housing assembly 22g rear end is installed in the rotating shaft 23, is used for back thrust bearing assembly 22f, rear axle housing assembly 22g axial limiting.In addition,, can between gland 6 and back shroud 21g, put seal ring 7,, offer tapped hole on the gland 6 also with seal plug 8 shutoff, at the rear end of motor clamping tail-hood 9 for the ease of maintenance in order to guarantee sealing.
In view of rotating shaft 23 is rotated; And thrust bearing assembly, sleeve assembly are assemblied in the rotating shaft; Radially slide with the radial bearing assembly from sleeve assembly cooperate, the relation of thrust bearing assembly and the axial sliding fit of radial bearing assembly; Thrust bearing assembly, sleeve assembly and the transmission of rotating shaft moment of torsion are assembled into good; So-called moment of torsion transmission assembling is meant that thrust bearing assembly, sleeve assembly can rotate with rotating shaft; Therefore but its concrete assembling can be the structures such as plane that realize, also can on rotating shaft, thrust bearing assembly, sleeve assembly, be provided with the transmitting torque that matches through key, and when thrust bearing assembly, when sleeve assembly has skeleton, moment of torsion transmits assembled construction and can be located on the skeleton.
The bearing structure at the utility model rotating shaft two ends both can bearing radial force, also can bear axial force; As shown in Figure 1, when rotor 21 was static, the axial plain bearing that is made up of forward thrust bearing unit 22a and front shaft sleeve assembly 22b carried rotor; Behind the rotor startup, flowing medium gets into impeller 3, is flowed out by outlet 12 through import 11, rotates the radial force that produces by the radial sliding bearing bear rotor at two ends; And variation along with rotor speed; Flowing medium can pass through impeller, rotating shaft produces end thrust backward to stator, therefore, and when design, assembling rotating shaft; Can be adapted to the variation of power axially reserving certain clearance when working so that rotating shaft can be floated vertically.
Claims (10)
1. pump; Comprise the pump housing (1), motor (2), impeller (3); The described pump housing (1) be connected in motor (2) go up and have import (11), outlet (12) and be positioned at import (11) with outlet (12) between pump chamber (13), described motor (2) comprises stator (21), rotor (22), described rotor (22) upward assembles rotating shaft (23); Described impeller (3) is positioned at pump chamber (13) and is installed in the front end of said rotating shaft (23), it is characterized in that:
Described rotating shaft (23) is gone up and is assembled with respect to described stator (21) by nearly extremely thrust bearing assembly and sleeve assembly far away; And be described thrust bearing assembly and sleeve assembly configuration radial bearing assembly; Described sleeve assembly radially slides with described radial bearing assembly and cooperates, described thrust bearing assembly and the axial sliding fit of described radial bearing assembly.
2. pump according to claim 1; It is characterized in that: described thrust bearing assembly comprises forward thrust bearing unit (22a); Described sleeve assembly comprises front shaft sleeve assembly (22b); Described radial bearing assembly comprises preceding radial bearing assembly (22c); Described forward thrust bearing unit (22a), front shaft sleeve assembly (22b) are positioned at the front side of said stator (21) and are assemblied in successively forward in the described rotating shaft (23), and described front shaft sleeve assembly (22b) radially slides with described preceding radial bearing assembly (22c) and cooperates described forward thrust bearing unit (22a) and preceding radial bearing assembly (22c) axial sliding fit.
3. pump according to claim 2 is characterized in that: between the described pump housing (1) and described stator (21), be provided with pump cover (4), described preceding radial bearing assembly (22c) is fixed on the described pump cover (4).
4. according to claim 1 or 2 or 3 described pumps; It is characterized in that: described thrust bearing assembly comprises back thrust bearing assembly (22f); Described sleeve assembly comprises rear axle housing assembly (22g); Described radial bearing assembly comprises back radial bearing assembly (22h); Described back thrust bearing assembly (22f), rear axle housing assembly (22g) are positioned at the rear side of said stator (21) and are assemblied in successively backward in the described rotating shaft (23), and described rear axle housing assembly (22g) radially slides with described back radial bearing assembly (22h) and cooperates, described back thrust bearing assembly (22f) and back radial bearing assembly (22h) axial sliding fit.
5. pump according to claim 4 is characterized in that: described back radial bearing assembly (22h) is assemblied in the rear end of said stator (21) through a gland (6).
6. pump according to claim 5 is characterized in that: put seal ring (7) between described gland (6) and the back shroud (21g).
7. pump according to claim 6; It is characterized in that: offer on the described gland (6) tapped hole and with seal plug (8) with the tapped hole shutoff; Be positioned at the tail-hood (9) in said gland (6) outside in the rear end clamping of said stator (21), offer the through hole of corresponding said seal plug (8) on the described tail-hood (9).
8. pump according to claim 1 is characterized in that: described thrust bearing assembly, sleeve assembly and described rotating shaft moment of torsion transmission assembling.
9. according to claim 1 or 8 described pumps, it is characterized in that: described thrust bearing assembly, sleeve assembly, radial bearing assembly are that composite abrasion resistance material constitutes on skeleton, and described being slidingly matched is being slidingly matched between the corresponding high-abrasive material.
10. pump according to claim 1 is characterized in that: described sleeve assembly is placed in the described rotating shaft (23) and between described sleeve assembly and rotating shaft (23), establishes middleware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202544416U CN202165279U (en) | 2011-07-19 | 2011-07-19 | Pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202544416U CN202165279U (en) | 2011-07-19 | 2011-07-19 | Pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165279U true CN202165279U (en) | 2012-03-14 |
Family
ID=45801107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202544416U Expired - Lifetime CN202165279U (en) | 2011-07-19 | 2011-07-19 | Pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165279U (en) |
-
2011
- 2011-07-19 CN CN2011202544416U patent/CN202165279U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHIMGE PUMP INDUSTRY GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG SHIMGE PUMP INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: Shimge Pump Industry Group Co., Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: Zhejiang Shimge Pump Industry Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200624 Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: SHIMGE PUMP (ZHEJIANG) Co.,Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: SHIMGE PUMP INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |