CN204984929U - Single end face seal locking device of single -stage and single -suction centrifugal pump - Google Patents
Single end face seal locking device of single -stage and single -suction centrifugal pump Download PDFInfo
- Publication number
- CN204984929U CN204984929U CN201520685024.5U CN201520685024U CN204984929U CN 204984929 U CN204984929 U CN 204984929U CN 201520685024 U CN201520685024 U CN 201520685024U CN 204984929 U CN204984929 U CN 204984929U
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- pump
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- spring
- hand member
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Abstract
Single end face seal locking device of single -stage and single -suction centrifugal pump, pump cover right -hand member are provided with the end cover, between the inner circle of pump cover and the outer lane of axle sleeve, all leave the clearance between the outer lane of the inner circle of end cover and axle sleeve, install mechanical seal in the clearance, and mechanical seal includes lock nut, spring holder, holding screw, spring, rotating ring, quiet ring, wherein the spring holder the opening right, be provided with the spring in the opening of spring holder, the right -hand member of spring has set gradually rotating ring, quiet ring right, being provided with the several on the outer face of cylinder of spring holder left end and around the screw through -hole of circumference equipartition, installing holding screw in the screw through -hole, be provided with the several on the left end face of spring holder and around the screw through -hole of circumference equipartition, install lock nut in the screw through -hole, installation lock nut's screw through -hole communicates with each other and rectangular arranging with installation holding screw's screw through -hole. The utility model discloses it is rational in infrastructure, simple to operate, seal receptacle locking is firm, has improved the life -span and the efficiency of the pump body.
Description
Technical field
The utility model belongs to centrifugal pump field, and particularly a kind of mechanical single seal locking device of IH type single stage single suction volute pump, is applicable to the departments such as oil, chemical industry, metallurgy, electric power, papermaking, food, pharmacy and synthetic fiber.
Background technique
IH type single stage single suction volute pump is that one axially sucks, corrosion resisting centrifugal pump, and for conveying containing solid particle, the liquid with corrosivity, viscosity similar water, medium temperature is-20 DEG C ~ 105 DEG C, and when needing, employing cooling method temperature can be higher.
In use, when adopting mechanical single seal, sealing seat can loosen and cause leaking the IH type single stage single suction volute pump of prior art, can affect the normal work of pump.
Summary of the invention
The purpose of this utility model will solve the problems of the technologies described above.
The purpose of this utility model is achieved in that the mechanical single seal locking device of single stage single suction volute pump, comprises the pump housing, impeller, pump shaft, and the right-hand member of the pump housing is connected with suspension body with intermediate support, is provided with pump cover in the step surface of pump housing right-hand member; Impeller right-hand member is provided with axle sleeve, impeller, axle sleeve are installed on pump shaft, it is characterized in that: described pump cover right-hand member is provided with end cover, all gap is left between the inner ring of pump cover and the outer ring of axle sleeve, between the inner ring of end cover and the outer ring of axle sleeve, in gap, mechanical seal is installed, mechanical seal comprises locking nut, spring seat, Cock screw, spring, rotating ring, stationary ring, wherein the opening of spring seat to the right, be provided with spring in the opening of spring seat, the right-hand member of spring is disposed with rotating ring, stationary ring to the right; The external cylindrical surface of spring seat left end is provided with several circumferentially uniform tapped through hole, in tapped through hole, Cock screw is installed, the left side of spring seat is provided with several circumferentially uniform tapped through hole, be provided with locking nut in tapped through hole, the tapped through hole installing locking nut communicates and layout at a right angle with the tapped through hole installing Cock screw.
The right-hand member of described end cover is provided with stop pin.
The nominal diameter of described Cock screw is greater than the nominal diameter of locking nut.
The nominal diameter of described Cock screw is the twice of locking nut nominal diameter.
The utility model is rational in infrastructure, easy for installation, and sealing seat locking firmly, improves life-span and the efficiency of the pump housing.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model.
Fig. 2 is I enlarged view of Fig. 1.
Fig. 3 is the A direction view of Fig. 2.
In figure: 1. the pump housing; 2. impeller nut; 3. impeller; 4. pump cover; 5. axle sleeve; 6. mechanical seal; 7. end cover; 8. intermediate support; 9. suspension body; 10. pump shaft; 601. locking nut; 602. spring seat; 603. Cock screw; 604. spring; 605. rotating ring; 606. stationary ring; 607. stop pin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model:
The mechanical single seal locking device of single stage single suction volute pump, comprises the pump housing 1, impeller 3, pump shaft 10, and the right-hand member of the pump housing 1 is connected with suspension body 9 with intermediate support 8, is provided with pump cover 4 in the step surface of the pump housing 1 right-hand member, impeller 3 right-hand member is provided with axle sleeve 5, impeller 3, axle sleeve 5 is installed on pump shaft 10, it is characterized in that: described pump cover 4 right-hand member is provided with end cover 7, between the inner ring of pump cover 4 and the outer ring of axle sleeve 5, all gap is left between the inner ring of end cover 7 and the outer ring of axle sleeve 5, mechanical seal 6 is installed in gap, mechanical seal 6 comprises locking nut 601, spring seat 602, Cock screw 603, spring 604, rotating ring 605, stationary ring 606, wherein the opening of spring seat 602 to the right, spring 604 is provided with in the opening of spring seat 602, the right-hand member of spring 604 is disposed with rotating ring 605 to the right, stationary ring 606, the external cylindrical surface of spring seat 602 left end is provided with several circumferentially uniform tapped through hole, Cock screw 603 is installed in tapped through hole, the left side of spring seat 602 is provided with several circumferentially uniform tapped through hole, be provided with locking nut 601 in tapped through hole, the tapped through hole installing locking nut 601 communicates and layout at a right angle with the tapped through hole installing Cock screw 603, the right-hand member of described end cover 7 is provided with stop pin 607, the nominal diameter of described Cock screw 603 is greater than the nominal diameter of locking nut 601, the nominal diameter of described Cock screw 603 is twices of locking nut 601 nominal diameter.
Above-described embodiment of the present utility model; it is only the citing clearly illustrating that the utility model does; but be not used for limiting protection domain of the present utility model; all equivalent technological schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by every claim.
Claims (4)
1. the mechanical single seal locking device of single stage single suction volute pump, comprise the pump housing (1), impeller (3), pump shaft (10), the right-hand member of the pump housing (1) is connected with suspension body (9) with intermediate support (8), is provided with pump cover (4) in the step surface of the pump housing (1) right-hand member, impeller (3) right-hand member is provided with axle sleeve (5), impeller (3), axle sleeve (5) is installed on pump shaft (10), it is characterized in that: described pump cover (4) right-hand member is provided with end cover (7), between the inner ring of pump cover (4) and the outer ring of axle sleeve (5), all gap is left between the inner ring of end cover (7) and the outer ring of axle sleeve (5), mechanical seal (6) is installed in gap, mechanical seal (6) comprises locking nut (601), spring seat (602), Cock screw (603), spring (604), rotating ring (605), stationary ring (606), wherein the opening of spring seat (602) to the right, spring (604) is provided with in the opening of spring seat (602), the right-hand member of spring (604) is disposed with rotating ring (605) to the right, stationary ring (606), the external cylindrical surface of spring seat (602) left end is provided with several circumferentially uniform tapped through hole, Cock screw (603) is installed in tapped through hole, the left side of spring seat (602) is provided with several circumferentially uniform tapped through hole, be provided with locking nut (601) in tapped through hole, the tapped through hole installing locking nut (601) communicates and layout at a right angle with the tapped through hole installing Cock screw (603).
2. the mechanical single seal locking device of single stage single suction volute pump according to claim 1, is characterized in that: the right-hand member of described end cover (7) is provided with stop pin (607).
3. the mechanical single seal locking device of single stage single suction volute pump according to claim 1, is characterized in that: the nominal diameter of described Cock screw (603) is greater than the nominal diameter of locking nut (601).
4. the mechanical single seal locking device of single stage single suction volute pump according to claim 1, is characterized in that: the nominal diameter of described Cock screw (603) is the twice of locking nut (601) nominal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685024.5U CN204984929U (en) | 2015-09-07 | 2015-09-07 | Single end face seal locking device of single -stage and single -suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685024.5U CN204984929U (en) | 2015-09-07 | 2015-09-07 | Single end face seal locking device of single -stage and single -suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984929U true CN204984929U (en) | 2016-01-20 |
Family
ID=55119304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685024.5U Expired - Fee Related CN204984929U (en) | 2015-09-07 | 2015-09-07 | Single end face seal locking device of single -stage and single -suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298902A (en) * | 2015-10-19 | 2016-02-03 | 季裕成 | Single-end surface sealing and locking device of single-grade single suction centrifugal pump |
-
2015
- 2015-09-07 CN CN201520685024.5U patent/CN204984929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298902A (en) * | 2015-10-19 | 2016-02-03 | 季裕成 | Single-end surface sealing and locking device of single-grade single suction centrifugal pump |
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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: 20160120 Termination date: 20170907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |