CN203463299U - Directly-coupled fluoroplastic centrifugal pump - Google Patents
Directly-coupled fluoroplastic centrifugal pump Download PDFInfo
- Publication number
- CN203463299U CN203463299U CN201320554770.1U CN201320554770U CN203463299U CN 203463299 U CN203463299 U CN 203463299U CN 201320554770 U CN201320554770 U CN 201320554770U CN 203463299 U CN203463299 U CN 203463299U
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- shaft
- impeller
- centrifugal pump
- motor output
- pump
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Abstract
The utility model discloses a directly-coupled fluoroplastic centrifugal pump, which aims to overcome the defect that large cost wastes are caused by the application of the conventional fluoroplastic centrifugal pump in small-density ambient conditions. The directly-coupled fluoroplastic centrifugal pump includes a base, a motor and a pump body, wherein the motor and the pump body are mounted on the base, an impeller shaft is arranged in the pump body, an impeller is connected with the front end of the impeller shaft, a connecting shaft is connected between a motor output shaft and the impeller shaft, a sleeve hole is formed in the rear end of the connecting shaft, the motor output shaft is tightly sleeved with the sleeve hole, a plurality of locking holes are uniformly and circumferentially formed in the outer wall of the motor output shaft, a plurality of locking screws are connected to the outer wall of the connecting shaft in the position of the sleeve hole and are in one-to-one correspondence to the locking holes, the front ends of the locking screws are connected with the insides of the corresponding locking holes, a connecting hole is formed in the rear end of the impeller shaft, the front end of the connecting shaft is tightly sleeved with the connecting hole, locking screws are connected to the outer wall, close to the rear end, of the impeller shaft, and the front ends of the locking screws are propped against the outer wall of the connecting shaft.
Description
Technical field
The utility model relates to a kind of industrial pump, and more particularly, it relates to the straight connection type fluoroplastic centrifugal pump that a kind of cost is low.
Background technique
At present, chemical industry is more and more higher to the requirement of pump, the encouragement and competition of enterprise requires the various key propertys of industrial pump to reach outside requirement, also needs better anti-blocking performance, wear-resisting property, and higher cost performance and model specification to have more wide selection be a large advantage of competing between industry.In order to be convenient for changing motor, the a lot of fluoroplastic centrifugal pumps that use are now generally articulated forms, the bracket that pair of bearings supports impeller shaft is installed between pump main body and motor, the industrial pump of this structural type can be selected the motor of different capacity according to the working medium of different specific weight, motor is changed convenient and swift.But under little density medium service condition, owing to not needing to change motor, use the fluoroplastic centrifugal pump of articulated structure can produce cost waste largely.Therefore, the fluoroplastic centrifugal pump of articulated structure uses and under little density medium condition, can produce cost waste largely.
Chinese patent notification number CN2183461Y, a kind of centrifugal pump is disclosed, comprise transmission shaft, impeller wheel body, pump case, transmission shaft and impeller wheel body are an one-piece parts, two bearings is arranged on respectively the axial two ends of impeller wheel body, bearing gland and bearing support lay respectively at the two ends of pump case, and the cross section of discharge channel that is positioned at pump case internal surface is ascending.The centrifugal pump of this structure can be selected according to the working medium of different specific weight the motor of different capacity, motor is changed convenient and swift, but under little density medium service condition, owing to not needing to change motor, use the fluoroplastic centrifugal pump of articulated structure can produce cost waste largely.
Model utility content
The utility model has overcome existing fluoroplastic centrifugal pump and has used the deficiency that can produce cost waste largely under little density medium condition, a kind of straight connection type fluoroplastic centrifugal pump is provided, its cost simple in structure is low, be adapted at using under little density medium condition, reduced client's input cost, meeting the market requirement.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of straight connection type fluoroplastic centrifugal pump, comprise base, be arranged on motor and the pump housing on base, in the pump housing, be provided with impeller shaft, impeller shaft front end connects impeller, between motor output shaft and impeller shaft, be connected with coupling shaft, coupling shaft rear end is provided with sleeve joint hole, sleeve joint hole is closely socketed on motor output shaft, on motor output shaft outer wall, be uniformly distributed along the circumference and be provided with several locking holes, coupling shaft is connected with several and locking hole lock screw one to one on the outer wall of sleeve joint hole position, lock screw front end is connected in locking hole, impeller shaft rear end is provided with attachment hole, and coupling shaft front end is closely socketed in attachment hole, on the outer wall of impeller shaft near rear end, is connected with lock screw, and lock screw front end is connected on coupling shaft outer wall.
Coupling shaft one end is connected with motor output shaft, and the other end is connected with impeller shaft, between motor output shaft and coupling shaft, by lock screw, carries out fastening locking, simple in structure, connects reliable.Motor output shaft is closely plugged in the sleeve joint hole of coupling shaft, and coupling shaft is closely plugged in the attachment hole of impeller shaft, makes to keep good coaxality between motor output shaft, coupling shaft, impeller shaft three.Between motor output shaft and impeller shaft, be straight connection type structure, do not need to arrange bearing, so structure is simpler, low cost of manufacture, is adapted at using under little density medium condition, has reduced client's input cost, meeting the market requirement.
As preferably, impeller shaft front end is arranged in the pump housing, and the rear end of the pump housing is connected with pump cover, on pump housing inwall and pump cover front-end face, is all lined with fluoroplastics layer.Fluoroplastics layer antiseptic property is good, has increased the working life of centrifugal pump.
As preferably, impeller shaft comprises that metal shaft body, lining are at the fluoroplastics lining body of this external surface of metal shaft, and impeller is fluoroplastic material and is connected and is integrative-structure with fluoroplastics lining body.The impeller shaft intensity being comprised of metal shaft body, fluoroplastics lining body is good, and is difficult for being corroded, long service life.
As preferably, on motor output shaft, near motor position, be socketed with water retaining ring, water retaining ring and motor output shaft are tightly connected.Water retaining ring prevents that liquid splash is to motor.
As preferably, on pump cover ear end face, be connected with mechanical seal, mechanical seal is socketed on impeller shaft.The good sealing effect of mechanical seal, can prevent the phenomenon of leakage effectively.
As preferably, coupling shaft is one-level Step Shaft shape structure, and coupling shaft is greater than the diameter of the other end at the straight hole that socket nose end is set.Concordant at the outer wall of sleeve joint hole position and the outer wall of impeller shaft after the coupling shaft of this structure is connected with impeller shaft, structure is more reasonable.
As preferably, between the pump housing and motor, be connected with support, impeller shaft is arranged in support.Support is set between the pump housing and motor has increased the structural strength of centrifugal pump, makes centrifugal pump more steadily reliable when in use.
Compared with prior art, the beneficial effects of the utility model are: the simple cost of straight connection type fluoroplastic centrifugal pump structure is low, are adapted at using under little density medium condition, have reduced client's input cost, meeting the market requirement.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
In figure: 1, motor, 2, the pump housing, 3, impeller shaft, 4, impeller, 5, motor output shaft, 6, coupling shaft, 7, sleeve joint hole, 8, locking hole, 9, lock screw, 10, attachment hole, 11, pump cover, 12, fluoroplastics layer, 13, metal shaft body, 14, fluoroplastics lining body, 15, water retaining ring, 16, mechanical seal, 17, support, 18, base.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment: a kind of straight connection type fluoroplastic centrifugal pump (referring to accompanying drawing 1), comprise base 18, be arranged on motor 1 and the pump housing 2 on base, in the pump housing, be provided with impeller shaft 3, impeller shaft front end connects impeller 4.Between the pump housing and motor, be connected with support 17, impeller shaft is arranged in support, and support is connected with motor with the pump housing by bolt.Between motor output shaft 5 and impeller shaft, be connected with coupling shaft 6, coupling shaft rear end is provided with sleeve joint hole 7, sleeve joint hole is closely socketed on motor output shaft, on motor output shaft outer wall, be uniformly distributed along the circumference and be provided with six locking holes 8, coupling shaft is connected with six and locking hole lock screw 9 one to one on the outer wall of sleeve joint hole position, and lock screw front end is connected in locking hole.Impeller shaft rear end is provided with attachment hole 10, and coupling shaft front end is closely socketed in attachment hole, on the outer wall of impeller shaft near rear end, is uniformly distributed along the circumference and is connected with six lock screws, and lock screw front end is connected on coupling shaft outer wall.Impeller shaft front end is arranged in the pump housing, and the rear end of the pump housing is connected with pump cover 11, on pump housing inwall and pump cover front-end face, is all lined with fluoroplastics layer 12.On pump cover ear end face, be connected with mechanical seal 16, mechanical seal is socketed on impeller shaft.On motor output shaft, near motor position, be socketed with water retaining ring 15, water retaining ring and motor output shaft are tightly connected.Impeller shaft comprises metal shaft body 13, serves as a contrast the fluoroplastics lining body 14 at this external surface of metal shaft, and impeller is fluoroplastic material and is connected and is integrative-structure with fluoroplastics lining body.Coupling shaft is one-level Step Shaft shape structure, and coupling shaft is greater than the diameter of the other end at the straight hole that socket nose end is set.Concordant at the outer wall of sleeve joint hole position and the outer wall of impeller shaft after coupling shaft is connected with impeller shaft, structure is more reasonable.
Coupling shaft one end is connected with motor output shaft, and the other end is connected with impeller shaft, between motor output shaft and coupling shaft, by lock screw, carries out fastening locking, simple in structure, connects reliable.Motor output shaft is closely plugged in the sleeve joint hole of coupling shaft, and coupling shaft is closely plugged in the attachment hole of impeller shaft, makes to keep good coaxality between motor output shaft, coupling shaft, impeller shaft three.Between motor output shaft and impeller shaft, be straight connection type structure, do not need to arrange bearing, so structure is simpler, low cost of manufacture, is adapted at using under little density medium condition, has reduced client's input cost, meeting the market requirement.
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim records.
Claims (7)
1. a straight connection type fluoroplastic centrifugal pump, comprise base (18), be arranged on motor (1) and the pump housing (2) on base, in the pump housing, be provided with impeller shaft (3), impeller shaft front end connects impeller (4), it is characterized in that, between motor output shaft (5) and impeller shaft, be connected with coupling shaft (6), coupling shaft rear end is provided with sleeve joint hole (7), sleeve joint hole is closely socketed on motor output shaft, on motor output shaft outer wall, be uniformly distributed along the circumference and be provided with several locking holes (8), coupling shaft is connected with several and locking hole lock screw (9) one to one on the outer wall of sleeve joint hole position, lock screw front end is connected in locking hole, impeller shaft rear end is provided with attachment hole (10), and coupling shaft front end is closely socketed in attachment hole, on the outer wall of impeller shaft near rear end, is connected with lock screw, and lock screw front end is connected on coupling shaft outer wall.
2. a kind of straight connection type fluoroplastic centrifugal pump according to claim 1, is characterized in that, impeller shaft front end is arranged in the pump housing, and the rear end of the pump housing is connected with pump cover (11), is all lined with fluoroplastics layer (12) on pump housing inwall and pump cover front-end face.
3. a kind of straight connection type fluoroplastic centrifugal pump according to claim 1, it is characterized in that, impeller shaft comprises metal shaft body (13), serves as a contrast the fluoroplastics lining body (14) at this external surface of metal shaft, and impeller is fluoroplastic material and is connected and is integrative-structure with fluoroplastics lining body.
4. according to a kind of straight connection type fluoroplastic centrifugal pump described in claim 1 or 2 or 3, it is characterized in that, on motor output shaft, near motor position, be socketed with water retaining ring (15), water retaining ring and motor output shaft are tightly connected.
5. a kind of straight connection type fluoroplastic centrifugal pump according to claim 2, is characterized in that, on pump cover ear end face, be connected with mechanical seal (16), mechanical seal is socketed on impeller shaft.
6. according to a kind of straight connection type fluoroplastic centrifugal pump described in claim 1 or 2 or 3 or 5, it is characterized in that, coupling shaft is one-level Step Shaft shape structure, and coupling shaft is greater than the diameter of the other end at the straight hole that socket nose end is set.
7. according to a kind of straight connection type fluoroplastic centrifugal pump described in claim 1 or 2 or 3 or 5, it is characterized in that, between the pump housing and motor, be connected with support (17), impeller shaft is arranged in support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554770.1U CN203463299U (en) | 2013-09-06 | 2013-09-06 | Directly-coupled fluoroplastic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554770.1U CN203463299U (en) | 2013-09-06 | 2013-09-06 | Directly-coupled fluoroplastic centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463299U true CN203463299U (en) | 2014-03-05 |
Family
ID=50175667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320554770.1U Expired - Lifetime CN203463299U (en) | 2013-09-06 | 2013-09-06 | Directly-coupled fluoroplastic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209914A (en) * | 2018-11-11 | 2019-01-15 | 长沙小如信息科技有限公司 | A kind of environmental protection water pump |
-
2013
- 2013-09-06 CN CN201320554770.1U patent/CN203463299U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209914A (en) * | 2018-11-11 | 2019-01-15 | 长沙小如信息科技有限公司 | A kind of environmental protection water pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
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| CX01 | Expiry of patent term |