CN216429814U - Small-size mixed-flow runner structure - Google Patents

Small-size mixed-flow runner structure Download PDF

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Publication number
CN216429814U
CN216429814U CN202123313759.XU CN202123313759U CN216429814U CN 216429814 U CN216429814 U CN 216429814U CN 202123313759 U CN202123313759 U CN 202123313759U CN 216429814 U CN216429814 U CN 216429814U
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CN
China
Prior art keywords
runner
cone
main shaft
locking bolt
drain
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Active
Application number
CN202123313759.XU
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Chinese (zh)
Inventor
许志翔
郑应霞
袁静
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PowerChina Huadong Engineering Corp Ltd
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PowerChina Huadong Engineering Corp Ltd
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Priority to CN202123313759.XU priority Critical patent/CN216429814U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Abstract

The utility model relates to a small-size mixed flow runner structure. Is suitable for the technical field of water conservancy and hydropower engineering. The utility model adopts the technical proposal that: a small-size mixed flow runner structure has the main shaft, its characterized in that: a rotating wheel is sleeved on the main shaft, a drainage cone is arranged on the upper crown of the rotating wheel, and a locking bolt is arranged on the drainage cone; the drain cone is provided with a mounting hole in the axial direction of the main shaft in a through manner, a drain cone internal thread is arranged on one side, close to the main shaft, of the mounting hole of the drain cone, a main shaft head is arranged at the end part of the main shaft, and a shaft head external thread meshed with the drain cone internal thread is arranged on the outer side of the main shaft head; the bolt rod of the locking bolt extends into the through hole of the water drain cone, and spindle head internal threads matched with the locking bolt threads are further arranged on the spindle head.

Description

Small-size mixed-flow runner structure
Technical Field
The utility model relates to a small-size mixed flow runner structure. Is suitable for the technical field of water conservancy and hydropower engineering.
Background
The small water turbine is mostly applied to small hydropower stations with small installed capacity. The small water turbine usually adopts a horizontal structure, and has the advantages of simple structure, less engineering quantity, lower manufacturing cost and the like, so the small water turbine is widely applied. In recent years, the requirements of relevant departments of China on ecological flow discharge are getting stricter, and the small hydropower stations can recycle the part of energy well, so that more and more attention is paid to the development of the small hydropower stations. The drain cone of a large-scale mixed-flow runner is generally connected with the runner body in a bolt combining mode. The small-sized mixed-flow runner has small power and small unit size, and if the runner and the drain cone structure which are the same as the small-sized mixed-flow runner are adopted, the design and installation difficulty can be caused, and meanwhile, the unnecessary waste of materials can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the utility model provides a small-size mixed-flow runner structure convenient to dismantle the wash-out awl.
The utility model adopts the technical proposal that: a small-size mixed flow runner structure has the main shaft, its characterized in that: a rotating wheel is sleeved on the main shaft, a drainage cone is arranged on the upper crown of the rotating wheel, and a locking bolt is arranged on the drainage cone;
the drain cone is provided with a mounting hole in the axial direction of the main shaft in a through manner, a drain cone internal thread is arranged on one side, close to the main shaft, of the mounting hole of the drain cone, a main shaft head is arranged at the end part of the main shaft, and a shaft head external thread meshed with the drain cone internal thread is arranged on the outer side of the main shaft head;
the bolt rod of the locking bolt extends into the through hole of the water drain cone, and spindle head internal threads matched with the locking bolt threads are further arranged on the spindle head.
The surfaces of the locking bolt, the drain cone and the runner are in smooth transition, the nut of the locking bolt is a curved surface, and the nut of the curved surface is smoothly connected with the surface of the drain cone.
The bolt head of the locking bolt is provided with a through hole for inserting the steel rod auxiliary tool along the radial direction of the locking bolt.
And one side of the drain cone close to the locking bolt is provided with an inner hexagonal hole coaxial with the mounting hole.
The aperture of the drain cone mounting hole is larger than the outer diameter of the locking bolt rod.
The runner crown of the runner is provided with a round hole along the axial direction of the runner, the surface of the drain cone arranged on the runner is provided with a bottom ring matched with the round hole, the drain cone is arranged on the runner by matching the bottom ring and the round hole, and the end part of the main shaft is provided with a main shaft journal matched with the round hole.
The runner is a mixed-flow runner.
The utility model has the advantages that: installing a drain cone outside the runner on the end of the main shaft sleeved with the runner, fixedly installing the drain cone on the shaft head of the main shaft by the drain cone in threaded connection with the shaft head of the main shaft on the end of the main shaft, installing a locking bolt on the drain cone, enabling a bolt rod of the locking bolt to penetrate through an installation hole of the drain cone and be in threaded connection with the shaft head of the main shaft, and fixedly installing the drain cone on the runner; the nut of the locking bolt is made into a curved surface and is smoothly connected with the surface of the drainage cone, so that the structure still has good drainage performance; a through hole for inserting the steel rod is arranged on the nut of the locking bolt along the radial direction, so that the locking nut can be conveniently detached after the steel rod auxiliary tool is inserted into the through hole and the arm of force is increased; the surface of the drain cone for mounting the locking bolt is provided with an inner hexagonal hole, so that the drain cone can be conveniently matched with auxiliary tools such as a hexagonal wrench to be used for separating and dismounting the drain cone from the spindle head. Because the flow state of the water in the water turbine is relatively complicated, the locking bolt is added for locking the drain cone, and the risk that the drain cone falls off can be reduced.
Drawings
FIG. 1: the utility model discloses embodiment 1's schematic structure diagram.
FIG. 2: the utility model discloses embodiment 2's structural schematic.
In the figure: 1. locking bolt, 2, drainage cone, 3, runner, 301, runner crown, 4, main shaft, 401, main shaft head, 402, main shaft journal.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
As shown in fig. 1, embodiment 1 is a small-sized mixed-flow runner structure, which has a main shaft 4, a runner 3 is sleeved on one end of the main shaft 4, the runner 3 is a mixed-flow runner 3, a circular hole penetrating through the runner 3 is formed in the surface of the runner 3 where a water drain cone 2 is installed along the axial direction of the runner 3, and the circular hole leads to a main shaft head 401 on the main shaft 4. The main shaft 4 is provided with a main shaft journal 402 on the end of the main shaft 4, which is matched with the circular hole, so that the rotating wheel 3 is positioned and installed on the main shaft 4.
In this embodiment, the runner crown 301 of the runner 3 is provided with the drain cone 2, the contact surface of the drain cone 2 and the runner 3 is provided with a bottom ring matched with the circular hole, and the drain cone 2 is positioned and installed on the runner 3 by matching the bottom ring of the drain cone 2 and the circular hole of the runner 3.
Furthermore, the drain cone 2 is provided with a mounting hole along the axial direction of the drain cone 2, and the mounting hole is provided with an internal thread of the drain cone 2 on one side close to the runner 3. A spindle head 401 is arranged on the spindle journal 402, and a spindle head external thread matched with the internal thread of the drain cone 2 is arranged on the outer side surface of the spindle head 401. So, the sluicing awl 2 realize with sluicing awl 2 fixed mounting on main shaft 4 and the tight runner 3 of clamp through 2 internal threads of sluicing awl and spindle nose external screw thread screw-thread fit.
In this embodiment, the head of the drainage cone 2 is a plane, and a hexagon socket coaxial with the mounting hole is arranged on one side of the drainage cone 2 close to the locking bolt 1. So be convenient for when needs are dismantled runner 3 with wash-out cone 2, through rotate interior hexagonal wrench after inserting interior hexagonal wrench in the hexagonal socket-head mast hole and realize separating and lift off wash-out cone 2 and main shaft spindle nose 401.
In this embodiment, after the head of the drainage cone 2 is ground flat, in order to ensure that the drainage cone 2 still has good drainage capability, the locking bolt 1 is installed on the planar head of the drainage cone 2, the surface of the bolt head of the locking bolt 1 is a curved surface, and the surface of the bolt head and the surface of the drainage cone 2 are in smooth transition. The bolt rod of the locking bolt 1 penetrates through the mounting hole of the drain cone 2 and is in threaded connection with the spindle head internal thread on the spindle head 401. The aperture of the drain cone mounting hole is larger than the outer diameter of the locking bolt rod. Therefore, the locking bolt 1 is fixedly arranged on the main shaft 4, the head of the drainage cone 2 which is ground flat is replaced by the bolt head with the curved surface on the surface, and the drainage function is realized.
In this embodiment, when the bolt head of the locking bolt 1 is ground into a curved surface, in order to be able to screw the locking bolt 1, a through hole is formed in the bolt head of the locking bolt 1 along the radial direction of the locking bolt 1, so that an arm of force is increased after a steel rod auxiliary tool is inserted into the through hole, and the locking bolt 1 is screwed down or loosened by rotating a steel rod.
The working principle of the embodiment is as follows:
when the drain cone 2 needs to be disassembled, the steel rod auxiliary tool is inserted into the through hole of the locking bolt 1, and the steel rod auxiliary tool is rotated, so that the locking bolt 1 is taken down from the drain cone 2 after the locking bolt 1 and the spindle head 401 are removed from threaded fit. Inserting an inner hexagonal wrench into an inner hexagonal hole in the planar head of the drain cone 2, and rotating the inner hexagonal wrench to remove the thread fit between the drain cone 2 and the spindle head 401, and then taking the drain cone 2 off the runner 3;
when the drainage cone 2 needs to be installed on the rotating wheel 3, the drainage cone 2 is matched with a round hole in the rotating wheel 3 through a bottom ring at the bottom of the drainage cone 2, and the drainage cone 2 is installed on the rotating wheel 3 in a positioning mode. Simultaneously, the inner hexagonal wrench is inserted into the inner hexagonal hole in the planar head of the drain cone 2 and is rotated, so that the internal thread of the drain cone 2 on the drain cone 2 is matched with the external thread of the spindle head on the spindle head 401, and the drain cone 2 is fixedly installed on the spindle 4 and clamps the runner 3. The locking bolt 1 is installed on the head of the plane of the water escape cone 2, the steel rod auxiliary tool is inserted into the through hole of the bolt head, then the steel rod auxiliary tool is rotated to enable the thread of the bolt rod on the locking bolt 1 to be in threaded fit with the inner thread of the spindle head on the spindle head 401, and the locking bolt 1 is fixedly installed on the spindle 4.
Embodiment 2 is a small-sized mixed-flow runner structure, which is substantially the same as embodiment 1, except that a locking bolt 1 in embodiment 2 is fixedly installed at the bottom of a hexagon socket of a drain cone 2.
In this embodiment, when the drain cone 2 needs to be detached from the runner 3, the locking bolt 1 needs to be unscrewed from the spindle nose 401 by a wrench matched with the bolt head of the locking bolt 1, and the thread of the bolt rod on the locking bolt 1 is cancelled to be matched with the thread of the internal thread of the spindle nose 401; when the drain cone 2 needs to be installed on the runner 3, the locking bolt 1 needs to be screwed in from the spindle nose 401 through a wrench matched with the bolt head of the locking bolt 1, so that the thread of the bolt rod on the locking bolt 1 is matched with the thread in the spindle nose 401.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. A small-size mixed flow runner structure has the main shaft, its characterized in that: a rotating wheel is sleeved on the main shaft, a drainage cone is arranged on the upper crown of the rotating wheel, and a locking bolt is arranged on the drainage cone;
the drain cone is provided with a mounting hole along the axial direction of the main shaft, a drain cone internal thread is arranged on one side, close to the main shaft, of the mounting hole of the drain cone, a main shaft head is arranged at the end part of the main shaft, and a shaft head external thread meshed with the drain cone internal thread is arranged on the outer side of the main shaft head;
the bolt rod of the locking bolt extends into the through hole of the drainage cone, and spindle head internal threads matched with the locking bolt in a threaded mode are further arranged on the spindle head.
2. The structure of a compact francis runner of claim 1, wherein: the lock bolt is installed on the surface of wash-out cone, and lock bolt's nut is the curved surface, and the nut and the wash-out cone smooth connection of curved surface.
3. A compact francis runner structure of claim 2, wherein: the bolt head of the locking bolt is provided with a through hole for inserting the steel rod auxiliary tool along the radial direction of the locking bolt.
4. The structure of a compact francis runner of claim 1, wherein: and the drain cone is provided with an inner hexagonal hole coaxial with the mounting hole on one side for mounting the locking bolt.
5. The structure of a compact francis runner of claim 4, wherein: the locking bolt is fixedly arranged at the bottom of the inner hexagonal hole.
6. The structure of a compact francis runner of claim 1, wherein: the aperture of the drain cone mounting hole is larger than the outer diameter of the locking bolt rod.
7. The structure of a compact francis runner of claim 1, wherein: the runner crown of the runner is provided with a round hole along the axial direction of the runner, the surface of the drain cone arranged on the runner is provided with a bottom ring matched with the round hole, the drain cone is arranged on the runner by the matching of the bottom ring and the round hole, and the end part of the main shaft is provided with a main shaft journal matched with the round hole.
8. The structure of a compact francis runner of claim 1, wherein: the runner is a mixed-flow runner.
CN202123313759.XU 2021-12-27 2021-12-27 Small-size mixed-flow runner structure Active CN216429814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123313759.XU CN216429814U (en) 2021-12-27 2021-12-27 Small-size mixed-flow runner structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123313759.XU CN216429814U (en) 2021-12-27 2021-12-27 Small-size mixed-flow runner structure

Publications (1)

Publication Number Publication Date
CN216429814U true CN216429814U (en) 2022-05-03

Family

ID=81319539

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123313759.XU Active CN216429814U (en) 2021-12-27 2021-12-27 Small-size mixed-flow runner structure

Country Status (1)

Country Link
CN (1) CN216429814U (en)

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