CN110043451B

CN110043451B - Novel axial-flow turbine

Info

Publication number: CN110043451B
Application number: CN201910328044.XA
Authority: CN
Inventors: 祁辉宇
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-08-04
Anticipated expiration: 2039-04-23
Also published as: CN110043451A

Abstract

The invention discloses a novel axial-flow turbine, which comprises a shell and a driving motor, wherein a rotating shaft is fixed at the output end of the driving motor and extends into the shell, a fan blade assembly is arranged at an air inlet of the shell and comprises a fixed ring plate, and an annular groove is formed in the periphery of the inner wall of the fixed ring plate; the rotary cutting machine is characterized in that an annular bearing is fixed on the rotary shaft, rotary cutting blades are respectively fixed on the annular bearings, arc-shaped sliding blocks are fixed at the bottoms of the ends, not in contact with the annular bearing, of the rotary cutting blades, the arc-shaped sliding blocks are located in the annular grooves one by one, and the rotary cutting blades can respectively do circular motion between the annular bearing and the inner wall of the fixed annular plate. The rotary-cut air compressor is reasonable in structural design and convenient to use, and the rotary-cut speed of air is increased by independently rotating the rotary-cut blades at a high speed, so that the speed of compressing air in a compression chamber can be increased.

Description

Novel axial-flow turbine

Technical Field

The invention relates to the technical field of turbines, in particular to a novel axial flow turbine.

Background

A turbine is an engine that generates power by impacting fluid against an impeller for rotation. The earliest turbochargers were used on sports or formula cars so that the engine could gain more power in those racing races where engine displacement was limited. And can be classified into steam turbines, gas turbines, and water turbines. The power machine is widely used for power generation, aviation, navigation and the like. The turbocharger is actually an air compressor that increases the intake air amount by compressing air. It utilizes inertia impulse force to increase output power of engine.

In the prior art of turbines, a plurality of different structures are provided, and relatively mature, in the disclosed technical documents, such as 201710741476.4, 201210599139.3, 200980152403.5, etc., a completely new turbine structure is disclosed, but the structural designs do not relate to the improved design of the rotating blades.

In the working process of the turbine, the main function of the rotating blades is to crush the entering air and then convey the air to the compression chamber, so that the efficiency of the rotating blades for crushing the air directly influences the compression efficiency of the air in the compression chamber.

Disclosure of Invention

The present invention is directed to a novel axial flow turbine that solves the above-mentioned problems of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses a novel axial flow turbine, which comprises a shell and a driving motor, wherein a rotating shaft is fixed at the output end of the driving motor and extends into the shell, a fan blade assembly is arranged at an air inlet of the shell and comprises a fixed ring plate, and an annular groove is formed in the periphery of the inner wall of the fixed ring plate; the rotary cutting machine is characterized in that an annular bearing is fixed on the rotary shaft, rotary cutting blades are respectively fixed on the annular bearings, arc-shaped sliding blocks are fixed at the bottoms of the ends, not in contact with the annular bearing, of the rotary cutting blades, the arc-shaped sliding blocks are located in the annular grooves one by one, and the rotary cutting blades can respectively do circular motion between the annular bearing and the inner wall of the fixed annular plate.

Further, the annular bearings are at least provided with two or more annular bearings, and the adjacent annular bearings are at least 5cm apart.

Further, an angle difference of 5-10 degrees is formed between the vertical plane of the rotary cutting blade and the vertical plane of the annular bearing.

Furthermore, the inner wall of the fixed ring plate is provided with annular grooves with the same number as the annular bearings, and the positions of each annular groove and each fixed ring plate are arranged in concentric circles one by one.

Furthermore, the height of the arc-shaped sliding blocks is 1/3-1/2 of the depth of the annular groove, a key position pin is fixed on one side of each arc-shaped sliding block, which is in contact with the annular groove, a plurality of key position holes are formed in the bottom of the rotary-cut blade, and the arc-shaped sliding blocks are inserted into the key position holes one by one through the key position pins and are detachably mounted at the bottom of the rotary-cut blade.

Further, be equipped with the air compression room in the shell, be equipped with two gear rooms in the air compression room at least, every the gear includes the ring gear board, be equipped with the internal tooth on the annular inner wall of ring gear board, be equipped with three driven gear in the annular of ring gear board at least, every driven gear one by one with the internal tooth intermeshing of ring gear board, and a plurality of contactless between the driven gear.

Further, the rotation axis runs through a plurality of gear rooms one by one and extends to outside the air compression chamber, and every all be fixed with a driving gear on the rotation axis in the ring gear inboard, with the design of the ring gear inboard concentric circles, and it is same a plurality of driven gear rings in the gear room the driving gear design, and every driven gear one by one with the driving gear is each other

And (4) meshing.

Compared with the prior art, the invention has the beneficial effects that:

the rotary-cut vane compressor is reasonable in structural design and convenient to use, the fixed ring plate is mainly designed at the air inlet, the plurality of annular bearings are designed in the fixed ring plate, the rotary-cut vanes are respectively arranged on each annular bearing, the bottom end of each rotary-cut vane is installed in the annular groove in the inner wall of the fixed ring plate through the arc-shaped sliding block, so that the rotary-cut vanes can rotate at high speed, the rotary-cut speed of air can be increased through high-speed rotation in the independent rotating process of the plurality of rotary-cut vanes, and the speed of air compression in a compression chamber can be increased.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic overall structure of the present invention;

FIG. 2 is a schematic view of a connection structure of a driving motor and a stationary ring plate according to the present invention;

FIG. 3 is an enlarged structural view of part A of the present invention;

fig. 4 is a schematic structural view of a rotary-cut blade of the present invention;

FIG. 5 is a schematic structural view of an inventive arcuate slider;

FIG. 6 is a partial inside display view of the housing of the present invention;

fig. 7 is a schematic structural view of a gear chamber of the present invention.

In the figure: 1-a housing; 1 a-an air inlet; 11-a stationary ring plate; 11 a-a ring groove; 12-an annular bearing; 13-rotary cutting the blade; 13 a-arc slider; 13 a-1-key position pin; 14-an air compression chamber; 14 a-gear chamber; 14 a-1-ring gear plate; 14 a-2-internal teeth; 14 a-3-drive gear; 14 a-4-driven gear; 2-driving the motor; 21-ring bearing.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

Where an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and where an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-7, the novel axial flow turbine of the present invention includes a casing 1 and a driving motor 2, wherein a rotating shaft 21 is fixed at an output end of the driving motor 2 and extends into the casing 1, a fan blade assembly is arranged at an air inlet 1a of the casing 1, the fan blade assembly includes a fixed ring plate 11, and an annular groove 11a is formed around an inner wall of the fixed ring plate 11; an annular bearing 12 is fixed on the rotating shaft 21, a rotary cutting blade 13 is fixed on each annular bearing 12, an arc-shaped sliding block 13a is fixed at the bottom of one end of each rotary cutting blade 13, which is not in contact with the annular bearing 12, the arc-shaped sliding blocks 13a are located in the annular grooves 11a one by one, and the rotary cutting blades 13 can respectively do circular motion between the annular bearing 21 and the inner wall of the fixed annular plate 11.

Referring to fig. 2-3, at least two or more annular bearings 12 are provided, and the interval between adjacent annular bearings 12 is at least 5 cm. In the present embodiment, the rotary-cut blade 13 can be prevented from colliding with each other in time by setting the position interval of 5cm or more between the annular bearings.

Referring to fig. 3, an angle difference of 5 to 10 degrees is formed between a vertical plane of the rotary-cut blade 13 and a vertical plane of the annular bearing 12. In the present embodiment, through the design of the angular deviation, when the rotary-cut blade 13 cuts up air, the contact area with the air on the same plane can be reduced, so that the air resistance can be effectively reduced, and the rotary-cut speed can be improved.

Referring to fig. 2, the inner wall of the fixed ring plate 11 is provided with annular grooves 11a, the number of which is equal to that of the annular bearings 12, and the positions of each annular groove 11a and each fixed ring plate 11 are arranged one by one concentrically.

Referring to fig. 4-5, the height of the arc-shaped sliding blocks 13a is 1/3-1/2 of the depth of the annular groove 11a, a key pin 13a-1 is fixed on one side of each arc-shaped sliding block 13a contacting with the annular groove 11a, a plurality of key holes are arranged at the bottom of the rotary-cut blade 13, and the arc-shaped sliding blocks 13a are detachably mounted at the bottom of the rotary-cut blade 13 by inserting the key pins 13a-1 into the key holes one by one. In the embodiment, the detachable installation of the arc-shaped sliding block 13a can be realized through the matching action of the key position pin 13a-1 and the key position groove, so that the arc-shaped sliding block 13a is convenient to replace after being abraded due to long-term contact friction between the arc-shaped sliding block 13a and the annular groove 11 a.

Referring to fig. 6-7, an air compression chamber 14 is provided in the housing 1, at least two gear chambers 14a are provided in the air compression chamber 14, each gear chamber 14a includes a ring gear plate 14a-1, inner teeth 14a-2 are provided on an inner annular wall of the ring gear plate 14a-1, at least three driven gears 14a-4 are provided in an annular shape of the ring gear plate 14a-1, each driven gear 14a-4 is meshed with the inner teeth 14a-2 of the ring gear plate 14a-1 one by one, and the plurality of driven gears 14a-4 are not in contact with each other.

The rotating shaft 21 penetrates through the gear chambers 14a one by one and extends out of the air compression chamber 14, a driving gear 14a-3 is fixed on the rotating shaft 21 in each annular gear plate 14a-1 and is designed to be concentric with the annular gear plate 14a-1, a plurality of driven gears 14a-4 in the same gear chamber 14a are designed to be annular to the driving gear 14a-3, and each driven gear 14a-4 is meshed with the driving gear 14a-3 one by one. In this embodiment, the driving gear 14a-3 drives a plurality of driven gears 14a-4 to move circularly within the ring gear plate 14a-1, thereby compressing the incoming shredded air.

When the turbine designed by the invention works, the driving motor 2 is started through the control switch, the driving motor 2 drives the plurality of annular bearings 12 to rotate through the rotating shaft 21 after being started, air enters the shell 1 from the air inlet 1a when the driving motor 2 is started, the rotary-cut blades 13 driven by the driving motor 2 cut the entering air when the air passes through the air inlet 1a, the rotary-cut blades 13 on the adjacent annular bearings 12 are arranged in a staggered mode, the rotary-cut blades 13 fully cut the air while rotating, and meanwhile, the bottoms of the rotary-cut blades 13 do circular motion in the corresponding annular grooves 11a through the arc-shaped sliding blocks 13a, so that the driving speed of the driving motor 2 can be greatly increased, the phenomenon that the rotary-cut blades 13 fall off cannot be caused, and the service life can be prolonged.

After the chopped air enters the gear chamber 14a, the driving motor 2 drives the driving gear 14a-3 through the rotating shaft 21, and the driving gear 14a-3 drives the driven gears 14a-4 to rotate in the fixed ring plate 14a-1, so that the entering air can be fully compressed.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A novel axial-flow turbine comprises a shell (1) and a driving motor (2), wherein a rotating shaft (21) is fixed at the output end of the driving motor (2) and extends into the shell (1), and the novel axial-flow turbine is characterized in that a fan blade assembly is arranged at an air inlet (1 a) of the shell (1), the fan blade assembly comprises a fixed ring plate (11), and an annular groove (11 a) is formed in one circle of the inner wall of the fixed ring plate (11); an annular bearing (12) is fixed on the rotating shaft (21), rotary-cut blades (13) are respectively fixed on the annular bearing (12), arc-shaped sliding blocks (13 a) are fixed at the bottoms of the ends, which are not contacted with the annular bearing (12), of the rotary-cut blades (13), the arc-shaped sliding blocks (13 a) are positioned in the annular groove (11 a) one by one, and the rotary-cut blades (13) can respectively do circular motion between the annular bearing (12) and the inner wall of the fixed annular plate (11); an angle difference of 5-10 degrees is formed between the vertical plane of the rotary cutting blade (13) and the vertical plane of the annular bearing (12); the height of the arc-shaped sliding blocks (13 a) is 1/3-1/2 of the depth of the annular groove (11 a), a key position pin (13 a-1) is fixed on one side of each arc-shaped sliding block (13 a) which is contacted with the annular groove (11 a), a plurality of key position holes are formed in the bottom of the rotary cutting blade (13), and the arc-shaped sliding blocks (13 a) are inserted into the key position holes one by one through the key position pins (13 a-1) and are detachably mounted at the bottom of the rotary cutting blade (13); be equipped with air compression room (14) in shell (1), be equipped with two gear room (14 a) at least in air compression room (14), every gear room (14 a) includes ring gear board (14 a-1), be equipped with internal tooth (14 a-2) on the annular inner wall of ring gear board (14 a-1), be equipped with three driven gear (14 a-4) at least in the ring-shaped of ring gear board (14 a-1), every driven gear (14 a-4) one by one with internal tooth (14 a-2) intermeshing of ring gear board (14 a-1), and a plurality of contactless between driven gear (14 a-4).

2. A new axial turbomachine according to claim 1, characterised in that said annular bearings (12) are provided at least in two or more and that said annular bearings (12) are spaced apart by at least 5 cm.

3. A new type of axial turbomachine according to claim 1, characterised in that said fixed ring plates (11) are provided on their inner wall with a number of annular grooves (11 a) equal to the number of said annular bearings (12), and each of said annular grooves (11 a) is arranged concentrically one after the other with the position of each of said fixed ring plates (11).

4. A new axial flow turbine according to claim 3, characterised in that said rotating shaft (21) extends through a plurality of gear chambers (14 a) one by one outside the air compression chamber (14), and in that a driving gear (14 a-3) is fixed to the rotating shaft (21) in each of said ring gear plates (14 a-1), concentrically arranged with said ring gear plate (14 a-1), and in that a plurality of driven gears (14 a-4) in the same gear chamber (14 a) are arranged around said driving gear (14 a-3), and in that each of said driven gears (14 a-4) is arranged to mesh with said driving gear (14 a-3) one by one.