CN211448876U

CN211448876U - Axial flow type water turbine

Info

Publication number: CN211448876U
Application number: CN201921223305.3U
Authority: CN
Inventors: 徐祝山; 徐鹏程
Original assignee: Gaoyou Dajiang Pump Industry Co ltd
Current assignee: Gaoyou Dajiang Pump Industry Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-09-08
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an axial flow water turbine in the technical field of water turbine, which comprises a volute, wherein water inlet pipes are arranged on the outer walls of the left side and the right side of the volute, a water outlet pipe is arranged at the bottom of the volute, a main shaft is movably arranged at the top of the volute, the bottom of the main shaft extends to the inner side wall of the water outlet pipe and is connected with a rotating wheel through the outer wall, a cone-shaped wheel hub is connected at the bottom of the main shaft, a movable shaft is arranged in an inner cavity of the water inlet pipe, guide blades are connected with the outer wall of the water inlet pipe, the outer wall of the movable shaft, which is close to the top, is sleeved with a first connecting rod, the other end of the first connecting rod is provided with a connecting shaft, a second connecting rod is movably sleeved with the outer wall of the connecting shaft, a filter screen is movably arranged, the filter screen can be conveniently disassembled and assembled and replaced in the water inlet pipe.

Description

Axial flow type water turbine

Technical Field

The utility model relates to a hydraulic turbine technical field specifically is an axial-flow type hydraulic turbine.

Background

The size of rivers in the inlet tube is generally not adjusted well to the in-process that uses of current hydraulic turbine, and the filter screen of installation at hydraulic turbine water inlet department also is inconvenient to be changed, and the runner in the hydraulic turbine is great with the resistance between the rivers at the beginning. To this end, we propose an axial flow turbine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial-flow type hydraulic turbine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an axial-flow type hydraulic turbine, includes the spiral case, the left and right sides outer wall of spiral case all sets up the inlet tube, the bottom of spiral case sets up the outlet pipe, the top activity of spiral case sets up the main shaft, and the junction of main shaft and spiral case sets up the bearing seal circle, the bottom of main shaft extends to the inside wall and the outer wall connection runner of outlet pipe, toper wheel hub is connected to the bottom of main shaft, the inner chamber of inlet tube sets up the loose axle, and the top of loose axle extends to the top of inlet tube, the outer wall connection guide vane of inlet tube, the outer wall that the loose axle is close to the top cup joints connecting rod one, the other end of connecting rod one sets up the connecting axle, and the outer wall activity of connecting axle cup joints connecting rod two, and the bottom activity of connecting rod two sets.

Furthermore, the top of inlet tube sets up the logical groove that matches with the filter screen, and the inner wall bottom that leads to the groove sets up spacing recess, the top of filter screen sets up sealed fixture block, and the bottom of sealed fixture block sets up the seal ring who matches with spacing recess.

Furthermore, the top of inlet tube sets up spacing spout, the bottom of connecting rod two is through the spacing slider of round pin axle swing joint and spacing spout matching.

Furthermore, the tops of the two groups of connecting shafts are provided with holding rods, and the bottoms of the connecting shafts and the tops of the movable shafts are provided with limit baffles.

Furthermore, the bottom of the filter screen is provided with a limiting clamping block, and the bottom of the inner cavity of the water inlet pipe is provided with a limiting clamping groove matched with the limiting clamping block.

Furthermore, inner grooves matched with the guide vanes are formed in the inner walls of the front side and the rear side of the water inlet pipe, and the thickness of each guide vane is slightly thicker than the depth of each inner groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model arranges the cone-shaped wheel hub at the bottom of the main shaft provided with the rotating wheel, the cone-shaped wheel hub rotates along with the rotating shaft, when the cone-shaped wheel hub rotates, the stroke speed of the vortex can be accelerated, thereby effectively reducing the resistance between the rotating wheel and the water flow;

2. the utility model arranges the guide vane which is adjusted by the turning of the movable shaft in the water inlet pipe, and the guide vane rotates through the connecting shaft and rotates in the top of the water inlet pipe in a limiting way, thereby leading the guide vane to be adjusted in a rotating way and adjusting the water flow speed in the water inlet pipe through the guide vane;

3. the utility model discloses set up the open slot at the top of inlet tube, make the filter screen install through sealed fixture block and seal ring and guarantee the leakproofness in the inlet tube, can change the filter screen in convenient dismouting in the inlet tube simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the water inlet pipe connection structure of the present invention;

fig. 3 is a partial enlarged view of the position a of the present invention.

In the figure: 1. a volute; 2. a water inlet pipe; 3. a water outlet pipe; 4. a main shaft; 5. a rotating wheel; 6. a tapered hub; 7. a movable shaft; 8. a guide vane; 9. a connecting shaft; 10. a first connecting rod; 11. a second connecting rod; 12. Sealing the clamping block; 13. a filter screen; 14. a gasket is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme: an axial-flow water turbine comprises a volute 1, please refer to fig. 1, wherein water inlet pipes 2 are arranged on the outer walls of the left side and the right side of the volute 1, a water outlet pipe 3 is arranged at the bottom of the volute 1, a main shaft 4 is movably arranged at the top of the volute 1, a bearing sealing ring is arranged at the joint of the main shaft 4 and the volute 1, the bottom of the main shaft 4 extends to the inner side wall of the water outlet pipe 3, the outer wall of the main shaft 4 is connected with a rotating wheel 5, the bottom of the main shaft 4 is connected with a conical hub 6, when the water turbine operates, the main shaft 4 drives the rotating wheel 5 and the conical hub 6 to rotate, so that water entering from the water inlet pipe 2 is discharged through the water outlet;

referring to fig. 1 and 2, an inner cavity of a water inlet pipe 2 is provided with a movable shaft 7, the top of the movable shaft 7 extends to the upper part of the water inlet pipe 2, the outer wall of the water inlet pipe 2 is connected with guide vanes 8, inner walls of the front side and the rear side of the water inlet pipe 2 are respectively provided with an inner groove matched with the guide vanes 8, the thickness of each guide vane 8 is slightly larger than the depth of the inner groove, the guide vanes 8 can be attached to the inner grooves on the inner wall of the water inlet pipe 2, so as to ensure the maximum flow rate of water flow, the outer wall of the movable shaft 7 close to the top is sleeved with a first connecting rod 10, the other end of the first connecting rod 10 is provided with a connecting shaft 9, the tops of two groups of connecting shafts 9 are respectively provided with a holding rod, the bottoms of the connecting shafts 9 and the tops of the movable shafts 7 are respectively provided with a limit baffle, the connecting, the bottom of the second connecting rod 11 is movably arranged at the top of the water inlet pipe 2, the top of the water inlet pipe 2 is provided with a limiting sliding chute, the bottom of the second connecting rod 11 is movably connected with a limiting sliding block matched with the limiting sliding chute through a pin shaft, the limiting sliding block slides in the limiting sliding chute, so that the second connecting rod 11 can slide at the top of the water inlet pipe 2, a holding rod at the top of the connecting shaft 9 drives the connecting shaft 9 to rotate, the connecting shaft 9 rotates, and the movable shaft 7 drives the guide vane 8 to rotate, so that the flow velocity of water in the water inlet pipe 2 can;

please refer to fig. 1 and fig. 3, both ends water inlet goes out equal activity and sets up filter screen 13 about inlet tube 2, the bottom of filter screen 13 sets up spacing fixture block, and the inner chamber bottom of inlet tube 2 sets up the spacing draw-in groove that matches with spacing fixture block, through spacing fixture block joint in spacing draw-in groove, can conveniently install filter screen 13 in inlet tube 2 water inlet department, the top of inlet tube 2 sets up the logical groove that matches with filter screen 13, the inner wall bottom that leads to the groove sets up spacing recess, the top of filter screen 13 sets up sealed fixture block 12, and the bottom of sealed fixture block 12 sets up the seal ring 14 that matches with spacing recess, guarantee the leakproofness through sealed fixture block 12 and seal ring 14 simultaneously, make filter screen 13 can conveniently dismouting in inlet tube 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an axial-flow water turbine, includes spiral case (1), the left and right sides outer wall of spiral case (1) all sets up inlet tube (2), the bottom of spiral case (1) sets up outlet pipe (3), the top activity of spiral case (1) sets up main shaft (4), and main shaft (4) and the junction of spiral case (1) set up bearing seal circle, the bottom of main shaft (4) extends to inside wall and outer wall connection runner (5) of outlet pipe (3), its characterized in that: toper wheel hub (6) is connected to the bottom of main shaft (4), the inner chamber of inlet tube (2) sets up loose axle (7), and the top of loose axle (7) extends to the top of inlet tube (2), the outer wall connection of inlet tube (2) leads blade (8), the outer wall that loose axle (7) are close to the top cup joints connecting rod (10), the other end of connecting rod (10) sets up connecting axle (9), and the outer wall activity of connecting axle (9) cup joints connecting rod two (11), and the bottom activity of connecting rod two (11) sets up the top at inlet tube (2), inlet tube (2) are controlled both ends water inlet and are gone out the equal activity and set up filter screen (13).

2. An axial flow water turbine according to claim 1, wherein: the top of inlet tube (2) sets up the logical groove that matches with filter screen (13), and the inner wall bottom that leads to the groove sets up spacing recess, the top of filter screen (13) sets up sealed fixture block (12), and the bottom of sealed fixture block (12) sets up seal ring (14) that match with spacing recess.

3. An axial flow water turbine according to claim 1, wherein: the top of inlet tube (2) sets up spacing spout, the spacing slider that the bottom of connecting rod two (11) matches through round pin axle swing joint and spacing spout.

4. An axial flow water turbine according to claim 1, wherein: the top of the two groups of connecting shafts (9) is provided with a holding rod, and the bottom of the connecting shafts (9) and the top of the movable shaft (7) are provided with limit baffles.

5. An axial flow water turbine according to claim 1, wherein: the bottom of the filter screen (13) is provided with a limiting clamping block, and the bottom of the inner cavity of the water inlet pipe (2) is provided with a limiting clamping groove matched with the limiting clamping block.

6. An axial flow water turbine according to claim 1, wherein: inner grooves matched with the guide vanes (8) are formed in the inner walls of the front side and the rear side of the water inlet pipe (2), and the thickness of each guide vane (8) is slightly thicker than the depth of each inner groove.