CN110529324A - The vertical self-contained machine of tilt-impulse type twin-jet nozzle - Google Patents

Abstract

The invention discloses a vertical oblique strike double-nozzle assembly machine, which relates to the technical field of hydroelectric power generation. The invention includes a draft tube, a generator, a group of water inlet tubes, a pressure tube, an impeller body, a door body and connecting components. The generator is fixed on the top surface of the draft tube. Inside the water pipe, the impeller body is fixedly connected to one end of the main shaft through a connecting component, an opening is opened on the side of the draft tube, the door body is matched with the opening, and an edge is fixed on the side of the door body. The invention can install or remove the door body by setting the door body on the draft tube, and can provide space for the installation, removal and maintenance of the impeller body, and the installation and removal between the impeller body and the main shaft are facilitated by providing a connecting component, which solves the problem of The existing complete assembly machine is inconvenient to install, dismantle and maintain the impeller body.

Description

Vertical oblique impact double nozzle assembly machine

technical field

The invention belongs to the technical field of hydroelectric power generation, and in particular relates to a vertical oblique strike type double-nozzle assembly machine.

Background technique

The draft tubes on the existing packaged machines are mostly installed underground, while other parts of the draft tubes do not have doors. When the impellers are too impacted or their service life is reached, the impellers need to be replaced or maintained. For the installation The complete assembly machine needs to be dismantled and replaced, which is inconvenient for users to use.

At the same time, the connection between the existing impeller and the main shaft is usually bolted. When installing and removing the impeller body under the premise of opening a door body on the draft tube, due to too many bolts, it is necessary to adjust the angle of the impeller to completely remove the impeller body. , it is not convenient for users to install and remove, and at the same time, due to the limited space, it is not convenient for the alignment of the shaft center, and there may be an offset between the impeller and the main shaft during installation, which will affect the use effect of the impeller body.

Contents of the invention

The purpose of the present invention is to provide a vertical slanting double-nozzle assembly machine. By setting the door body on the draft tube, the door body can be installed or removed, and space can be provided for the installation, removal and maintenance of the impeller body. The installation and removal between the impeller body and the main shaft are convenient, and the problem that the existing complete machine is inconvenient to install, remove and maintain the impeller body is solved.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The present invention is a vertical slanting double-nozzle assembly machine, which includes a draft tube, a generator, a group of water inlet pipes, a pressure tube, an impeller body, a door body and a connecting assembly, the generator is fixed on the top surface of the draft tube, and the The generator is provided with a main shaft, and one end of the main shaft runs through the top of the draft tube and is located inside the draft tube, and the impeller body is fixedly connected to one end of the main shaft through a connecting assembly;

An opening is provided on the side around the draft tube, the door body is matched with the opening, and an edge is fixed on the side around the door body, and the edge is fixedly connected to the side around the draft tube by screws;

The connection assembly includes a connection shaft, a connection sleeve and a backing ring;

One end of the connecting shaft is fixedly connected to one end of the main shaft through a flange and bolts, a backing plate is fixed at the other end of the connecting shaft, a positioning rod is fixed on one surface of the backing plate, and several positioning strips are fixed on the side of the positioning rod , a threaded rod is fixed at one end of the positioning rod;

The length of the connecting sleeve is the same as the length of the positioning rod. The inner wall of the connecting sleeve is provided with a number of positioning grooves. The inner diameter of the ring and the connecting sleeve are the same as the outer diameter of the positioning rod;

The impeller body includes a swivel ring, the fixed ring is fixedly connected to a surface of the swivel ring through bolts, the swivel ring is in clearance fit with the connecting sleeve, and the sum of the thicknesses of the swivel ring and the fixed ring is the same as the length of the connecting sleeve;

A nut is fixed on one surface of the backing ring, and one surface of the backing ring is in contact with the end face of the positioning rod through the nut and the threaded rod, and the connecting sleeve is fixed on the outer surface of the positioning rod through the socket of the backing ring and the backing plate.

Further, the connecting assembly further includes a reinforcing rod, an arc-shaped plate is fixed on a surface edge of the reinforcing rod, and a fastening bolt penetrates through the arc-shaped plate.

Further, the threaded rod is provided with a through hole and a threaded hole, the reinforcing rod is in clearance fit with the through hole, the inner diameter of the arc-shaped plate is the same as the outer diameter of the threaded rod, and the arc-shaped plate is passed through the tightening bolt and the outer diameter of the threaded rod. The threaded hole is fixedly connected with the peripheral side of the threaded rod.

Further, the distance between the top surface of the through hole and the end surface of the positioning rod is the same as the sum of the height of the backing ring and the nut, and the length of the reinforcing rod is greater than the diameter of the threaded rod, and the difference is in the range of 2-4cm.

Further, a group of said water inlet pipes are respectively fixed on opposite sides of the draft pipe, and a nozzle is fixed at one end of said water inlet pipe inside the draft pipe, and said nozzle is positioned opposite to the impeller body.

Further, one end of the pressure pipe is in fixed communication with one end of the two water inlet pipes through a set of elbows, and an on-off valve is provided on the pressure pipe.

Further, a deflector is fixed through the water inlet pipe, and a baffle plate is fixed at one end of the deflector inside the water inlet pipe.

Further, a reinforcement ring is fixed on the side of the swivel ring, and several fan blades are fixed on the side of the reinforcement ring.

Further, a handle is fixed on the peripheral side of the door body, and the handle is a U-shaped handle.

The present invention has the following beneficial effects:

The invention can install or remove the door body by setting the door body on the draft tube, and can provide space for the installation, removal and maintenance of the impeller body, the connecting sleeve can be fixed on the impeller body by bolts, and the connecting shaft can be installed The positioning rod is fixed on the main shaft. The positioning bar and the positioning groove facilitate the cooperation of the connecting sleeve and the positioning rod. The connecting sleeve can be fixed between the backing ring and the backing plate through the threaded rod and nut, which is convenient for the connection between the impeller body and the main shaft. The installation and removal of the impeller are convenient for users to install, remove and overhaul the impeller body.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the structural cross-sectional view of the vertical oblique strike type double-nozzle assembly machine of the present invention;

Fig. 2 is a structural schematic diagram of the present invention looking up;

Fig. 3 is the structural representation of draft tube;

Fig. 4 is a schematic structural view of the impeller body and connecting components;

Fig. 5 is a structural schematic view of Fig. 4 viewed from above;

Fig. 6 is a structural sectional view of Fig. 4;

Fig. 7 is the structural representation of connecting shaft;

Fig. 8 is a structural schematic diagram of the connecting sleeve;

Fig. 9 is a schematic structural view of the impeller body;

Fig. 10 is the structural representation of backing ring;

Fig. 11 is the structural representation of reinforcing bar;

In the accompanying drawings, the list of parts represented by each label is as follows:

1-draft tube, 2-generator, 3-reinforcing rod, 4-gasket ring, 5-impeller body, 6-door body, 7-connection assembly, 8-connection shaft, 9-connection sleeve, 10-pressure pipe, 11-Water inlet pipe, 12-Spray head, 13-Elbow, 14-Switch valve, 15-Deflection device, 201-Spindle, 301-Arc plate, 302-Set bolt, 401-Nut, 501-Swivel, 502-reinforcing ring, 503-blade, 601-edge, 602-handle, 801-backing plate, 802-positioning rod, 803-positioning bar, 804-threaded rod, 805-through hole, 806-threaded hole, 901- Locating groove, 902-retaining ring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1-10, the present invention is a vertical slanting double nozzle assembly machine, including a draft pipe 1, a generator 2, a set of water inlet pipes 11, a pressure pipe 10, an impeller body 5, a door body 6 and connections Component 7, the generator 2 is fixed on the top surface of the draft tube 1, the generator 2 is provided with a main shaft 201, one end of the main shaft 201 runs through the top of the draft tube 1 and is located inside the draft tube 1, and the impeller body 5 is fixed to one end of the main shaft 201 through the connecting component 7 connect;

There is an opening on the side of the draft tube 1, and the door body 6 is matched with the opening. The side of the door body 6 is fixed with an edge 601, and the edge 601 is fixedly connected to the side of the draft tube 1 through screws. The door body 6 is arranged on the draft tube 1. The door body 6 can be installed or removed, and space can be provided for the installation, removal and maintenance of the impeller body 5;

The connection assembly 7 includes a connection shaft 8, a connection sleeve 9 and a backing ring 4;

One end of the connecting shaft 8 is fixedly connected to one end of the main shaft 201 through a flange and bolts, and the other end of the connecting shaft 8 is fixed with a backing plate 801, and a positioning rod 802 is fixed on one surface of the backing plate 801, and several positioning bars 803 are fixed on the side of the positioning rod 802 , one end of the positioning rod 802 is fixed with a threaded rod 804;

The length of connecting sleeve 9 is identical with the length of locating bar 802, and connecting sleeve 9 inwalls are provided with some locating grooves 901, and locating groove 901 and locating bar 803 clearance fits, and the peripheral side of connecting sleeve 9 one end is fixed with a fixed ring 902, and fixed ring 902 And inner diameter and the inner diameter of connecting sleeve 9 are all identical with the outer diameter of positioning rod 802;

The impeller body 5 includes a swivel 501, and the fixed ring 902 is fixedly connected to the surface of the swivel 501 by bolts. The swivel 501 and the connecting sleeve 9 are in clearance fit. The sum of the thicknesses of the swivel 501 and the fixed ring 902 is the same as the length of the connecting sleeve 9. ;

One surface of backing ring 4 is fixed with a nut 401, and one surface of backing ring 4 is in contact with the end face of positioning rod 802 by nut 401 and threaded rod 804.

As shown in Figures 5-6 and Figure 11, the connection assembly 7 also includes a reinforcing rod 3, an arc-shaped plate 301 is fixed on the edge of the surface of the reinforcing rod 3, and a tightening bolt 302 runs through the arc-shaped plate 301. Reinforcement rod 3 can play the role of reinforcement.

Wherein as shown in Figure 5-7 and Figure 11, threaded rod 804 is provided with a through hole 805 and a threaded hole 806, the reinforcement rod 3 and the through hole 805 clearance fit, the inner diameter of arc-shaped plate 301 is the same as the outer diameter of threaded rod 804, The arc plate 301 is fixedly connected with the peripheral side of the threaded rod 804 through the set bolt 302 and the threaded hole 806 .

Wherein as shown in Figure 4-6, the distance between the top surface of the through hole 805 and the end surface of the positioning rod 802 is the same as the sum of the heights of the backing ring 4 and the nut 401, the length of the reinforcing rod 3 is greater than the diameter of the threaded rod 804, the difference With in the range of 2-4cm.

As shown in Figure 1-2, a group of water inlet pipes 11 are respectively fixed on opposite sides of the draft pipe 1, and a nozzle 12 is fixed at one end of the water inlet pipe 11 inside the draft pipe 1, and the nozzle 12 is positioned opposite to the impeller body 5.

As shown in FIG. 2 , one end of the pressure pipe 10 is fixedly communicated with one end of the two water inlet pipes 11 through a group of elbows 13 , and the pressure pipe 10 is provided with an on-off valve 14 .

As shown in FIG. 1-2 , a deflector 15 is fixed through the water inlet pipe 11 , and a baffle plate is fixed at one end of the deflector 15 inside the water inlet pipe 11 .

As shown in FIGS. 4-6 and 9 , a reinforcement ring 502 is fixed on the side of the swivel 501 , and several fan blades 503 are fixed on the side of the reinforcement ring 502 .

Wherein, as shown in FIG. 3 , a handle 602 is fixed on the 6 sides of the door body, and the handle 602 is a U-shaped handle.

A specific application of this embodiment is: when installing the impeller body 5, the door body 6 is removed, the swivel ring 501 on the impeller body 5 is placed on the outside of the connecting sleeve 9 outside, and the fixing ring 902 on the connecting sleeve 9 is fixed by bolts On the swivel 501, the connecting sleeve 9 is moved to the inside of the draft tube 1 through the opening, and the connecting sleeve 9 can be set on the positioning rod 802 through the positioning bar 803 and the positioning groove 901. At this time, the backing ring 4 is rotated to the At the bottom of the positioning rod 802, the connecting sleeve 9 is fixed at the position between the backing ring 4 and the backing plate 801, so that the impeller body 5 can be installed on the main shaft 201, and finally the reinforcing rod 3 is inserted into the through hole 805, and by tightening Bolts 302 fix the arc-shaped plate 301 on the peripheral side of the threaded rod 804, which can be reinforced.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (9)

1. the vertical self-contained machine of tilt-impulse type twin-jet nozzle, including draft tube (1), generator (2), one group of water inlet pipe (11), pressure pipe (10) and impeller body (5), the generator (2) are fixed on draft tube (1) top surface, and the generator (2) is equipped with main shaft (201), described main shaft (201) one end at the top of draft tube (1) and is located at draft tube (1) inside, it is characterised in that: further includes Door body (6) and connection component (7), the impeller body (5) are fixedly connected by connection component (7) with main shaft (201) one end；

The all sides of the draft tube (1) offer an opening, and the door body (6) and opened gap cooperate, door body (6) side Face is fixed with edge (601), and the edge (601) is fixedly connected by screw with all sides of draft tube (1)；

The connection component (7) includes connecting shaft (8), connector sleeve (9) and gasket ring (4)；

Described connecting shaft (8) one end is fixedly connected by ring flange and bolt with main shaft (201) one end, and the connecting shaft (8) is another One end is fixed with a backing plate (801), and (801) one surface of backing plate is fixed with locating rod (802), locating rod (802) week Side is fixed with several positioning strips (803), and described locating rod (802) one end is fixed with a threaded rod (804)；

The length of the connector sleeve (9) is identical as the length of locating rod (802), and it is several fixed that connector sleeve (9) inner wall offers Position slot (901), the locating slot (901) and positioning strip (803) clearance fit, all sides of described connector sleeve (9) one end are fixed Have a fixed ring (902), outer diameter phase of the internal diameter of the fixed ring (902) and internal diameter and connector sleeve (9) with locating rod (802) Together；

The impeller body (5) includes change (501), and the fixed ring (902) is fixed by bolt and (501) one surface of change Connection, the change (501) and connector sleeve (9) clearance fit, the sum of thickness of the change (501) and fixed ring (902) with The length of connector sleeve (9) is identical；

(4) one surface of gasket ring is fixed with a nut (401), and (4) one surface of gasket ring passes through nut (401) and threaded rod (804) it is contacted with locating rod (802) end face, the connector sleeve (9) is sleeved and fixed and is being positioned by gasket ring (4) and backing plate (801) Bar (802) outer surface.

2. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that the connection component (7) is also Including reinforcing bar (3), it is fixed with an arc panel (301) at (3) one marginal surface of reinforcing bar, on the arc panel (301) Through there is a tight fixed bolt (302).

3. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 2, which is characterized in that on the threaded rod (804) Offer a through hole (805) and a threaded hole (806), the reinforcing bar (3) and through hole (805) clearance fit, the arc Shape plate (301) internal diameter is identical as threaded rod (804) outer diameter, and the arc panel (301) passes through tight fixed bolt (302) and threaded hole (806) it is fixedly connected with all sides of threaded rod (804).

4. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 3, which is characterized in that through hole (805) top Face and the distance between locating rod (802) end face are identical as the sum of the height of gasket ring (4) and nut (401), the reinforcing bar (3) Length be greater than the diameter of threaded rod (804), difference and range in 2-4cm.

5. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that water inlet pipe described in one group (11) It is separately fixed at draft tube (1) opposite side, the water inlet pipe (11) is located at draft tube (1) interior one end and is fixed with a spray head (12), It is opposite on the spray head (12) and impeller body (5) position.

6. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that described pressure pipe (10) one end It is connected to by one group of bend pipe (13) with the fixation of two water inlet pipes (11) one end, the pressure pipe (10) is equipped with switch valve (14).

7. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that passed through on the water inlet pipe (11) It wears and is fixed with a jet deflector (15), the jet deflector (15) is located at the internal one end of water inlet pipe (11) and is fixed with baffle plate.

8. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that change (501) side Face is fixed with reinforcing ring (502), and all sides of the reinforcing ring (502) are fixed with several flabellums (503).

9. the vertical self-contained machine of tilt-impulse type twin-jet nozzle according to claim 1, which is characterized in that all sides of the door body (6) It is fixed with leader (602), the handle (602) is U-shaped handle.