CN216306312U - Double-suction centrifugal pump impeller and double-suction centrifugal pump - Google Patents
Double-suction centrifugal pump impeller and double-suction centrifugal pump Download PDFInfo
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- CN216306312U CN216306312U CN202122971445.2U CN202122971445U CN216306312U CN 216306312 U CN216306312 U CN 216306312U CN 202122971445 U CN202122971445 U CN 202122971445U CN 216306312 U CN216306312 U CN 216306312U
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- suction centrifugal
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Abstract
The utility model discloses a double-suction centrifugal pump impeller and a double-suction centrifugal pump, which comprise an impeller hub and a central shaft arranged in the impeller hub, wherein the central shaft is in sliding connection with the impeller hub, a sliding chute is arranged in the central shaft, two symmetrically arranged sliding blocks are arranged in the sliding chute, a clamping mechanism is arranged on one side of each of the two sliding blocks, which is opposite to each other, a stabilizing mechanism is arranged between the two sliding blocks, a drag reducing mechanism is arranged at each of two ends of each sliding block, a bidirectional screw rod is arranged between the two sliding blocks, each of two ends of each bidirectional screw rod penetrates through the two sliding blocks and is rotationally connected with the inner opposite side wall of the sliding chute, the bidirectional screw rods are in threaded connection with the sliding blocks, a worm wheel is fixedly sleeved on each bidirectional screw rod, and the worm wheel is positioned between the two sliding blocks. The impeller hub quick mounting device is simple to operate and convenient to mount, the central shaft and the impeller hub are quickly mounted and connected by adjusting the arrangement of the clamping mechanisms, and the mounting stability is strong.
Description
Technical Field
The utility model relates to the technical field of centrifugal pumps, in particular to a double-suction centrifugal pump impeller and a double-suction centrifugal pump.
Background
When the flow-increasing transformation is carried out on the fixed sea pumping project, the impeller of the pump station unit is mainly transformed based on the angle consideration of reducing the transformation cost and the construction amount. The long-term monitoring of the operation condition of the pump station unit shows that the impeller of the double-suction centrifugal pump is unreasonable in design, so that the double-suction centrifugal pump has small delivery lift for pumping water flow, a high-efficiency area is narrow in working range and low in efficiency, the overall operation flow of a pump station is difficult to effectively improve, and the impeller of the pump station unit needs to be improved optimally.
Thus, the application numbers are: the utility model patent of CN201922171231.X provides a double suction centrifugal pump impeller and a double suction centrifugal pump, which comprises a front water inlet housing, an impeller hub and a rear water inlet housing, wherein the middle part of the impeller hub is provided with an annular baffle … …, so that the lift and efficiency of the double suction centrifugal pump are improved, and the pressure pulsation and vibration of the double suction centrifugal pump during working are reduced;
however, the utility model improves the installation and connection of the central shaft through the central shaft hole and the key groove on the impeller hub, and the stability after the central shaft is connected in this way is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the central shaft is connected in a novel mode through a central shaft hole and a key groove in an impeller hub, the stability of the mode after the central shaft is connected is poor, and the impeller and the double-suction centrifugal pump are improved.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a double-suction centrifugal pump impeller and a double-suction centrifugal pump comprise an impeller hub and a central shaft arranged in the impeller hub, wherein the central shaft is in sliding connection with the impeller hub, a sliding groove is formed in the central shaft, two symmetrically-arranged sliding blocks are arranged in the sliding groove, clamping mechanisms are arranged on the opposite sides of the two sliding blocks, a stabilizing mechanism is arranged between the two sliding blocks, drag reduction mechanisms are arranged at the two ends of the sliding blocks, a bidirectional screw rod is arranged between the two sliding blocks, the two ends of the bidirectional screw rod respectively penetrate through the two sliding blocks and are rotationally connected with the inner side wall of the sliding groove, the bidirectional screw rod is in threaded connection with the sliding blocks, a worm wheel is fixedly sleeved on the bidirectional screw rod and is positioned between the two sliding blocks, a worm meshed with the worm wheel is arranged in the sliding groove, one end of the worm is rotationally connected with the inner side wall of the sliding groove, and an object placing groove is arranged at one end of the central shaft, the storage tank is internally provided with a disc, the other end of the worm penetrates through the central shaft and is fixedly connected with the disc, the worm is rotatably connected with the central shaft, and one end, far away from the worm, of the disc is provided with a locking mechanism.
Preferably, the clamping mechanism comprises a plurality of clamping blocks fixed on one side of each of the two sliding blocks, clamping grooves corresponding to the clamping blocks are formed in the inner side wall of the impeller hub, one ends, far away from the sliding blocks, of the clamping blocks penetrate through the central shaft and extend into the clamping grooves, and the clamping blocks are connected with the central shaft in a sliding mode.
Preferably, the locking mechanism comprises a locking screw arranged on one side of the disc far away from the worm, a through hole corresponding to the locking screw is arranged in the disc, a plurality of screw holes corresponding to the locking screw are distributed on the inner side wall of the object placing groove in a circular manner, one end of the locking screw penetrates through the through hole and extends into the screw hole, and an internal thread meshed with the locking screw is arranged on the inner side wall of the screw hole.
Preferably, the stabilizing mechanism comprises a sliding rod arranged between the two sliding blocks, and two ends of the sliding rod respectively penetrate through the two sliding blocks and are fixedly connected with the inner opposite side walls of the sliding groove.
Preferably, drag reduction mechanism is including setting up the recess at the slider both ends, be equipped with the ball in the recess, the ball offsets with the inside wall of spout.
Preferably, the worm is rotatably sleeved with two stabilizing rings, and the two stabilizing rings are respectively fixed on the inner opposite side walls of the sliding groove.
Has the advantages that:
1. when the locking device is used, the central shaft is inserted into the impeller hub, the locking screw is unscrewed, the disc is rotated to drive the worm to rotate, the bidirectional screw is driven to rotate through the meshing effect of the worm and the worm wheel, the slider is driven to move through the meshing effect of the threads of the bidirectional screw, and the slider drives the clamping block to move into the clamping groove, so that the central shaft is prevented from loosening, and the stability between the central shaft and the impeller hub is improved;
2. meanwhile, the locking screw is screwed into the screw hole, so that the disc can be prevented from loosening, the resistance of the sliding block during movement can be reduced through the ball, the stability of the worm during rotation is improved through the stabilizing ring, and the stability of the sliding block during movement is improved through the sliding rod.
Drawings
Fig. 1 is a schematic structural diagram of an impeller and a double-suction centrifugal pump of the double-suction centrifugal pump according to the present invention;
FIG. 2 is a schematic top-down sectional view of an impeller and a central shaft of a double-suction centrifugal pump according to the present invention;
fig. 3 is a schematic structural diagram of a position a of the double-suction centrifugal pump impeller and the double-suction centrifugal pump according to the present invention.
In the figure: 1-central shaft, 2-clamping block, 3-impeller hub, 4-sliding block, 5-worm, 6-sliding rod, 7-bidirectional screw, 8-worm wheel, 9-stabilizing ring, 10-ball, 11-disc and 12-locking screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a double suction centrifugal pump impeller and a double suction centrifugal pump, including an impeller hub 3 and a central shaft 1 disposed in the impeller hub 3, for driving the impeller hub 3 to rotate by an external driving mechanism, the central shaft 1 and the impeller hub 3 are connected slidably, a chute is disposed in the central shaft 1, two symmetrically disposed sliders 4 are disposed in the chute, for driving a fixture block 2 to move, a clamping mechanism is disposed on each of opposite sides of the two sliders 4, the clamping mechanism includes a plurality of fixture blocks 2 fixed on opposite sides of the two sliders 4, for preventing the central shaft 1 and the impeller hub 3 from loosening, a clamping groove corresponding to the fixture block 2 is disposed on an inner side wall of the impeller hub 3, one end of the fixture block 2, which is far away from the slider 4, penetrates through the central shaft 1 and extends into the clamping groove, and the fixture block 2 and the central shaft 1 are connected slidably;
in this embodiment, a stabilizing mechanism is arranged between the two sliders 4, the stabilizing mechanism includes a slide bar 6 arranged between the two sliders 4 for improving stability when the sliders 4 move, two ends of the slide bar 6 respectively penetrate through the two sliders 4 and are fixedly connected with the inner opposite side walls of the sliding chute, two ends of each slider 4 are respectively provided with a resistance reducing mechanism, each resistance reducing mechanism includes grooves arranged at two ends of each slider 4, balls 10 are arranged in the grooves for reducing resistance when the sliders 4 move, and the balls 10 abut against the inner side walls of the sliding chutes;
in this embodiment, a bidirectional screw 7 is disposed between two sliders 4 for driving the sliders 4 to move, two ends of the bidirectional screw 7 respectively penetrate through the two sliders 4 and are rotatably connected with inner opposite sidewalls of the chute, the bidirectional screw 7 is in threaded connection with the sliders 4, a worm wheel 8 is fixedly sleeved on the bidirectional screw 7 for driving the bidirectional screw 7 to rotate, the worm wheel 8 is disposed between the two sliders 4, a worm 5 meshed with the worm wheel 8 is disposed in the chute for driving the worm wheel 8 to rotate, one end of the worm 5 is rotatably connected with an inner sidewall of the chute, one end of the central shaft 1 is provided with a storage slot, a disk 11 is disposed in the storage slot for facilitating a user to rotate the worm 5, the other end of the worm 5 penetrates through the central shaft 1 and is fixedly connected with the disk 11, the worm 5 is rotatably connected with the central shaft 1, two stabilizing rings 9 are rotatably sleeved on the worm 5 for improving stability of the worm 5 during rotation, two stabilizing rings 9 are respectively fixed on the inner opposite side walls of the sliding groove;
in this embodiment, a locking mechanism is arranged at one end of the disc 11, which is far away from the worm 5, the locking mechanism comprises a locking screw 12 arranged at one side of the disc 11, which is far away from the worm 5, and is used for preventing the disc 11 from loosening, a through hole corresponding to the locking screw 12 is arranged in the disc 11, a plurality of screw holes corresponding to the locking screw 12 are circularly distributed on the inner side wall of the storage groove, one end of the locking screw 12 penetrates through the through hole and extends into the screw hole, and an internal thread meshed with the locking screw 12 is arranged on the inner side wall of the screw hole;
in the embodiment, the central shaft 1 is inserted into the impeller hub 3, the locking screw 12 is unscrewed, the disc 11 is rotated to drive the worm 5 to rotate, the bidirectional screw 7 is driven to rotate by the meshing action of the worm 5 and the worm wheel 8, the slider 4 is driven to move by the meshing action of the bidirectional screw 7, the slider 4 drives the clamping block 2 to move into the clamping groove, so that the central shaft 1 is prevented from loosening, the stability between the central shaft 1 and the impeller hub 3 is improved, meanwhile, the locking screw 12 is screwed into the screw hole, the disc 11 can be prevented from loosening, the resistance of the slider 4 in moving can be reduced by the ball 10, the stability of the worm 5 in rotating is improved by the stabilizing ring 9, and the stability of the slider 4 in moving is improved by the sliding rod 6. And the stability after installation is stronger.
As described above, each component (component not described in specific structure) selected in the present application is a general standard component or a component known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through a technical manual or through a routine experiment method.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a double suction centrifugal pump impeller and double suction centrifugal pump, includes impeller hub (3) and center pin (1) of setting in impeller hub (3), its characterized in that: the central shaft (1) is in sliding connection with the impeller hub (3), a sliding chute is arranged in the central shaft (1), two symmetrically-arranged sliding blocks (4) are arranged in the sliding chute, a clamping mechanism is arranged on one side of each of the two sliding blocks (4) which are opposite to each other, a stabilizing mechanism is arranged between the two sliding blocks (4), a resistance reducing mechanism is arranged at each of two ends of each of the sliding blocks (4), a bidirectional screw (7) is arranged between the two sliding blocks (4), two ends of each of the bidirectional screw (7) penetrate through the two sliding blocks (4) respectively and are rotationally connected with the inner opposite side wall of the sliding chute, the bidirectional screw (7) is in threaded connection with the sliding blocks (4), a worm wheel (8) is fixedly sleeved on each of the bidirectional screw (7), the worm wheel (8) is positioned between the two sliding blocks (4), and a worm (5) meshed with the worm wheel (8) is arranged in the sliding chute, the one end of worm (5) is connected with the inside wall rotation of spout, the one end of center pin (1) is equipped with puts the thing groove, it is equipped with disc (11) to put the thing inslot, the other end of worm (5) run through center pin (1) and with disc (11) fixed connection, be connected for rotating between worm (5) and center pin (1), the one end that worm (5) were kept away from in disc (11) is equipped with locking mechanism.
2. The impeller for a double suction centrifugal pump and the double suction centrifugal pump according to claim 1, wherein: clamping mechanism is including fixing a plurality of fixture blocks (2) in two slider (4) one side of the back of the body mutually, be equipped with the draw-in groove corresponding with fixture block (2) on impeller hub (3) inside wall, the one end that slider (4) were kept away from in fixture block (2) runs through center pin (1) and extends to the draw-in groove, be sliding connection between fixture block (2) and center pin (1).
3. The impeller for a double suction centrifugal pump and the double suction centrifugal pump according to claim 1, wherein: locking mechanism is including setting up locking screw (12) of keeping away from worm (5) one side at disc (11), be equipped with in disc (11) with the corresponding through-hole of locking screw (12), it has a plurality of screws corresponding with locking screw (12) to be circular distribution on the inside wall of putting the thing groove, the one end of locking screw (12) runs through the through-hole and extends to in the screw, be equipped with the internal thread with locking screw (12) engaged with on the screw inside wall.
4. The impeller for a double suction centrifugal pump and the double suction centrifugal pump according to claim 1, wherein: the stabilizing mechanism comprises a sliding rod (6) arranged between the two sliding blocks (4), and two ends of the sliding rod (6) penetrate through the two sliding blocks (4) respectively and are fixedly connected with the inner opposite side walls of the sliding grooves.
5. The impeller for a double suction centrifugal pump and the double suction centrifugal pump according to claim 1, wherein: the drag reduction mechanism comprises grooves arranged at two ends of the sliding block (4), balls (10) are arranged in the grooves, and the balls (10) are abutted to the inner side walls of the sliding grooves.
6. The impeller for a double suction centrifugal pump and the double suction centrifugal pump according to claim 1, wherein: two stabilizing rings (9) are rotatably sleeved on the worm (5), and the two stabilizing rings (9) are respectively fixed on the inner opposite side walls of the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122971445.2U CN216306312U (en) | 2021-11-30 | 2021-11-30 | Double-suction centrifugal pump impeller and double-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122971445.2U CN216306312U (en) | 2021-11-30 | 2021-11-30 | Double-suction centrifugal pump impeller and double-suction centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN216306312U true CN216306312U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122971445.2U Active CN216306312U (en) | 2021-11-30 | 2021-11-30 | Double-suction centrifugal pump impeller and double-suction centrifugal pump |
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| CN (1) | CN216306312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688101A (en) * | 2022-04-18 | 2022-07-01 | 安徽朗迪叶轮机械有限公司 | Improved centrifugal fan blade |
-
2021
- 2021-11-30 CN CN202122971445.2U patent/CN216306312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688101A (en) * | 2022-04-18 | 2022-07-01 | 安徽朗迪叶轮机械有限公司 | Improved centrifugal fan blade |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230428 Address after: 201806 No.1 Hengheng Road, Jiading District, Shanghai Patentee after: WPG (SHANGHAI) SMART WATER PUBLIC Co.,Ltd. Address before: 214000 Hongshan North Industrial Park, Xinwu District, Wuxi City, Jiangsu Province (No. 3, Zhanhong Road) Patentee before: Waterfall Pump (Wuxi) Co.,Ltd. |