CN205047448U - No bearing pump - Google Patents
No bearing pump Download PDFInfo
- Publication number
- CN205047448U CN205047448U CN201520746306.1U CN201520746306U CN205047448U CN 205047448 U CN205047448 U CN 205047448U CN 201520746306 U CN201520746306 U CN 201520746306U CN 205047448 U CN205047448 U CN 205047448U
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- Prior art keywords
- pump
- groove
- sleeve
- flange
- shaft
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- Expired - Fee Related
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Abstract
The utility model provides a no bearing pump, including motor, pump, no bearing pump still includes the support, the support includes the support body, the inside cavity of support body, the both ends of support body are connected with motor and pump respectively, the tip of pump shaft is equipped with the sleeve with the coaxial setting of pump shaft, the sleeve is located inside the support body, flange joint between sleeve and the pump shaft, interference fit is connected between motor shaft and the sleeve. The beneficial effects of the utility model are that reduce the fault point of pump package, improved the job stabilization nature of whole pump package, support simple structure has reduced the manufacturing cost of pump package, shorten the overall length of pump package, reduce energy loss, improved the efficiency of pump package.
Description
Technical field
The utility model belongs to centrifugal pump field, is specifically related to a kind of bearing-free pump.
Background technique
The centrifugal pump motor axle of prior art is connected with adopting bearing between water pump spindle, easily occurs mechanical wear, and it is many that bearing connects fault point, affect the working life of centrifugal pump, and the volume of centrifugal pump, weight is large.
Patent 91105502.9 discloses the centrifugal water pump of a kind of bearing-free without foundry goods, is made up of coupling shaft asbestos pressure cap, asbestos rope, the pump housing, drain screw, paper washer, wear ring, bolt, pump cover, impeller, grease cup.The pump housing of this water pump, pump cover, impeller are all steel plate compacting weldments, and lightweight, lighter than existing centrifugal pump by 2/3, few with material, easy processing, yield rate is high, and cost is few.The coupling shaft of water pump is directly fixed on the flywheel of motor, due to bearing-free, reduces friction, capacity usage ratio, flow, lift are all high than existing Centrifugal water pump by more than 30%, the life-span is long, do not need maintenance, and be arranged in same frame with motor, convenient in carrying.
Model utility content
It is simple that the purpose of this utility model is to provide a kind of structure, and fault point is few, long service life, the bearing-free pump that stability is high.
The technical solution of the utility model is:
A kind of bearing-free pump, comprise motor, pump, described bearing-free pump also comprises support, described support comprises rack body, the inner hollow of described rack body, and the two ends of described rack body are connected with pump with motor respectively, the end of described pump shaft is provided with the sleeve coaxially arranged with pump shaft, described sleeve is positioned at rack body inside, Flange joint between described sleeve and pump shaft, and described motor shaft is connected with interference fit between sleeve.
The utility model bearing-free pump motor axle is connected by sleeve with between pump shaft, adopts support to be connected between motor with pump, baroque bearing support is become the simple support of structure.Decrease the fault point of pump group, improve the working stability of whole pump group; Supporting structure is simple, reduces the cost of production of pump group; Shorten the overall length of pump group; Reduce energy loss, improve the efficiency of pump group.
The inner wall section of sleeve can for the shape matched with motor shaft cross section, interference fit between motor shaft and sleeve.Because motor shaft needs to drive pump shaft to rotate, adopt interference fit to connect and improve the firmness be connected between motor shaft with pump shaft, avoid causing due to rotation the connection between motor shaft and pump shaft to disconnect.
The end of described pump shaft is provided with pump shaft flange, and one end of described sleeve is provided with the sleeve flange matched with pump shaft flange, Flange joint between described sleeve flange and pump shaft flange.
Described pump shaft flange and pump shaft integrally process, and described sleeve flange and sleeve integrally process.
The end of described motor shaft is provided with groove, two sidewalls of described groove parallel setting with the axis of motor shaft, the madial wall of described sleeve is provided with and is oppositely arranged and the sleeve lining groove matched with groove, the degree of depth of sleeve lining groove is less than the thickness of sleeve lateral wall, two sidewalls of described sleeve lining groove respectively with two sidewalls of groove at grade, key is provided with between described sleeve lining groove and groove, the height of key is greater than the degree of depth of groove, the height of key is less than depth of groove and sleeve lining groove depth sum, key length is less than the length of sleeve, the both side surface of described key contacts with two sidewalls of groove respectively.
Key can transmitting torque, further raising motor shaft and the stability be connected between pump shaft.
Described groove is rectangular, one end of described rectangular recess and the end of motor shaft flush, the other end end wall of described rectangular recess and the axis perpendicular of motor shaft, described sleeve lining groove is the rectangular identical with recess width, described key is the rectangular matched with groove and sleeve lining groove, the height of described key is greater than the degree of depth of groove, the height of described key is less than depth of groove and sleeve lining groove depth sum, the lower surface of described key contacts with groove floor, and the upper surface of described key and the gap, bottom surface of sleeve lining groove are arranged.
The degree of depth of described groove is less than or equal to the radius of motor shaft, and the width of described groove is 0.5-1.5 times of motor shaft radius.
The sidewall of described sleeve is provided with top wire hole, and one end of jackscrew is positioned at the outside of sleeve outer side wall, and the other end of jackscrew contacts with the upper surface of key through top wire hole.
Described key upper surface is provided with the fixed hole matched with jackscrew, and the other end of described jackscrew is positioned at fixed hole.
Can produce vibrations in the process of pump work, long-term vibrations can make axial float between pump shaft and motor shaft, the working stability of influential system, and jackscrew can prevent axial float between pump shaft and motor shaft, make the firm and reliable connection between pump shaft and motor shaft.
Described support comprises support fixed tray, rack body and flange bracket, described rack body is cylindrical shape, the two ends of described rack body are respectively equipped with support fixed tray and flange bracket, one end of described pump is provided with the pump flange matched with support fixed tray, Flange joint between described support fixed tray and pump flange, one end of described motor is provided with the motor flange matched with flange bracket, Flange joint between described flange bracket and motor flange.
Be provided with internal thread in described top wire hole, described jackscrew sidewall is provided with the outside thread matched with internal thread, and described jackscrew is threaded with between top wire hole.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, the connection between motor shaft and pump shaft is simpler; Decrease the fault point of pump, improve the working stability of whole pump; Supporting structure is simple, reduces the cost of production of pump; Shorten the overall length of pump group; Reduce energy loss, improve the efficiency of pump group.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model water pump
Fig. 2, Fig. 3 are the structural representations of the utility model motor shaft
Fig. 4, Fig. 5 are the structural representations of the utility model key
Fig. 6 is the sectional view of the utility model sleeve
In figure:
1, motor 2, pump 3, support 11, motor shaft 12, motor flange
13, fixed hole 14, groove 15, key 21, pump flange 22, pump shaft
23, sleeve 24, top wire hole 25, sleeve lining groove 26, pump shaft flange 27, sleeve flange
31, support fixed tray 32, flange bracket 33, rack body
Embodiment
As shown in Figure 1, a kind of bearing-free pump, comprise motor 1, pump 2 and support 3, support 3 comprises rack body 33, the inner hollow of rack body 33, one end of rack body 33 is connected with pump 2, the other end of rack body 33 is connected with motor 1, and the end of pump shaft 22 is provided with the coaxial sleeve 23 arranged with pump shaft 22, and it is inner that sleeve 23 is positioned at rack body 33, Flange joint between sleeve 23 and pump shaft 22, between motor shaft 11 with sleeve 23, interference fit is connected.
The inner wall section of sleeve 23 can for the shape matched with motor shaft 11 cross section.
The end of pump shaft 22 is provided with pump shaft flange 26, and one end of sleeve 23 is provided with the sleeve flange 27 matched with pump shaft flange 26, Flange joint between sleeve flange 27 and pump shaft flange 26.Pump shaft flange 26 integrally can process with pump shaft 22, and sleeve flange 27 integrally can process with sleeve 23.
Support 3 can also comprise support fixed tray 31, rack body 33 and flange bracket 32, rack body 33 is cylindrical shape, one end of rack body 33 is provided with support fixed tray 31, is provided with pump flange 21 in one end of pump 2, the Flange joint matched between support fixed tray 31 with pump flange 21; Be provided with flange bracket 32 at the other end of rack body 33, be provided with the motor flange 12 matched with flange bracket 32 in one end of motor 1, Flange joint between motor flange 12 and flange bracket 32.
As shown in Figure 2 and Figure 3, can be provided with groove 14 in the end of motor shaft 11, two sidewalls of groove 14 parallel setting with the axis of motor shaft 11.As shown in Figure 6, the madial wall of sleeve 23 is provided with the sleeve lining groove 25 matched with groove 14, the degree of depth of sleeve lining groove 25 is less than the thickness of sleeve 23 sidewall, two sidewalls of sleeve lining groove 25 respectively with two sidewalls of groove 14 at grade.Groove 14 and sleeve lining groove 25 are oppositely arranged formation holding space, key 15 is provided with in this holding space, the height of key 15 is greater than the degree of depth of groove 14, be less than groove 14 degree of depth and sleeve lining groove 25 degree of depth sum, the length of key 15 is less than the length of sleeve 23, and two side surfaces of key 15 contact respectively at two side surfaces of groove 14.
By key 15 transmitting torque between motor shaft 11 and sleeve 23, motor shaft 11 drives pump shaft 22 high speed rotating.
Preferred groove 14 is rectangular recess 14, and one end of rectangular recess 14 and the end of motor shaft 11 flush, the other end end wall of rectangular recess 14 and the axis perpendicular of motor shaft 11.Correspond, sleeve lining groove 25 is the rectangular identical with groove 14 width, key 15 is the rectangular matched with groove 14 and sleeve lining groove 25, the height of key 15 is greater than the degree of depth of groove 14, the height of key 15 is less than groove 14 degree of depth and sleeve lining groove 25 degree of depth sum, the lower surface of key 15 contacts with the bottom surface of groove 14, between the upper surface of key 15 and the bottom surface of sleeve lining groove 25, gap is arranged, two side surfaces of key 15 contact with two sidewalls of groove 14 respectively, same, two side surfaces of key 15 also contact with two sidewalls of sleeve lining groove 25 respectively.
The degree of depth of groove 15 is less than or equal to the radius of motor shaft 11, and the width of groove 14 is 0.5-1.5 times of motor shaft 11 radius.
As shown in Figure 1, the sidewall of sleeve 23 is provided with top wire hole 24, and one end of jackscrew is positioned at the outside of sleeve 23 outer side wall, and the other end of jackscrew contacts with the upper surface of key 15 through top wire hole 24.As shown in Figure 4, Figure 5, be provided with the fixed hole 13 matched with jackscrew at key 15 upper surface, the other end of jackscrew is positioned at fixed hole 13.Vibrations can be produced in the process that pump 2 works, long-term vibrations can make axial float between pump shaft 22 and motor shaft 11, the working stability of influential system, jackscrew can prevent axial float between pump shaft 22 and motor shaft 11, makes the firm and reliable connection between pump shaft 22 and motor shaft 11.Can be provided with internal thread in top wire hole 23, jackscrew sidewall is provided with the outside thread matched with internal thread, is threaded between jackscrew with top wire hole 23.
The working procedure of this example: be connected by sleeve 23 between motor shaft 11 with pump shaft 22, motor shaft 11 drives pump shaft 22 to rotate, and baroque bearing support is become the simple support 3 of structure.Decrease the fault point of whole pump group, improve the working stability of whole pump group; Support 3 structure is simple, reduces the cost of production of pump group; Shorten the overall length of pump group; Reduce energy loss, improve the efficiency of pump group.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (9)
1. a bearing-free pump, comprise motor, pump, it is characterized in that: described bearing-free pump also comprises support, described support comprises rack body, the inner hollow of described rack body, and the two ends of described rack body are connected with pump with motor respectively, the end of described pump shaft is provided with the sleeve coaxially arranged with pump shaft, described sleeve is positioned at rack body inside, Flange joint between described sleeve and pump shaft, and described motor shaft is connected with interference fit between sleeve.
2. a kind of bearing-free pump according to claim 1, is characterized in that: the end of described pump shaft is provided with pump shaft flange, one end of described sleeve is provided with the sleeve flange matched with pump shaft flange, Flange joint between described sleeve flange and pump shaft flange.
3. a kind of bearing-free pump according to claim 2, is characterized in that: described pump shaft flange and pump shaft integrally process, and described sleeve flange and sleeve integrally process.
4. a kind of bearing-free pump according to claim 1-3 any one, it is characterized in that: the end of described motor shaft is provided with groove, two sidewalls of described groove parallel setting with the axis of motor shaft, the madial wall of described sleeve is provided with and is oppositely arranged and the sleeve lining groove matched with groove, the degree of depth of sleeve lining groove is less than the thickness of sleeve lateral wall, two sidewalls of described sleeve lining groove respectively with two sidewalls of groove at grade, key is provided with between described sleeve lining groove and groove, the height of key is greater than the degree of depth of groove, the height of key is less than depth of groove and sleeve lining groove depth sum, key length is less than the length of sleeve, the both side surface of described key contacts with two sidewalls of groove respectively.
5. a kind of bearing-free pump according to claim 4, it is characterized in that: described groove is rectangular, one end of described rectangular recess and the end of motor shaft flush, the other end end wall of described rectangular recess and the axis perpendicular of motor shaft, described sleeve lining groove is the rectangular identical with recess width, described key is the rectangular matched with groove and sleeve lining groove, the height of described key is greater than the degree of depth of groove, the height of described key is less than depth of groove and sleeve lining groove depth sum, the lower surface of described key contacts with groove floor, the upper surface of described key and the gap, bottom surface of sleeve lining groove are arranged.
6. a kind of bearing-free pump according to claim 5, is characterized in that: the degree of depth of described groove is less than or equal to the radius of motor shaft, and the width of described groove is 0.5-1.5 times of motor shaft radius.
7. a kind of bearing-free pump according to claim 4, is characterized in that: the sidewall of described sleeve is provided with top wire hole, and one end of jackscrew is positioned at the outside of sleeve outer side wall, and the other end of jackscrew contacts with the upper surface of key through top wire hole.
8. a kind of bearing-free pump according to claim 7, is characterized in that: described key upper surface is provided with the fixed hole matched with jackscrew, and the other end of described jackscrew is positioned at fixed hole.
9. a kind of bearing-free pump according to claim 1, it is characterized in that: described support comprises support fixed tray, rack body and flange bracket, described rack body is cylindrical shape, the two ends of described rack body are respectively equipped with support fixed tray and flange bracket, one end of described pump is provided with the pump flange matched with support fixed tray, Flange joint between described support fixed tray and pump flange, one end of described motor is provided with the motor flange matched with flange bracket, Flange joint between described flange bracket and motor flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746306.1U CN205047448U (en) | 2015-09-24 | 2015-09-24 | No bearing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746306.1U CN205047448U (en) | 2015-09-24 | 2015-09-24 | No bearing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047448U true CN205047448U (en) | 2016-02-24 |
Family
ID=55341031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746306.1U Expired - Fee Related CN205047448U (en) | 2015-09-24 | 2015-09-24 | No bearing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111226043A (en) * | 2017-10-20 | 2020-06-02 | 株式会社荏原制作所 | Pump, pump device, and method for disassembling pump device |
-
2015
- 2015-09-24 CN CN201520746306.1U patent/CN205047448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111226043A (en) * | 2017-10-20 | 2020-06-02 | 株式会社荏原制作所 | Pump, pump device, and method for disassembling pump device |
| EP3699435A4 (en) * | 2017-10-20 | 2021-07-14 | Ebara Corporation | Pump, pump device, and method of disassembling pump device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20180924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |