阅读说明：本技术 一种带防腐摩擦结构的水轮机转轮主轴法兰 (Water turbine runner main shaft flange with anti-corrosion friction structure ) 是由 陆建生 于 2019-09-28 设计创作，主要内容包括：本发明公开了一种带防腐摩擦结构的水轮机转轮主轴法兰,包括主轴法兰、转轴法兰、法兰密封套、法兰安装槽、防腐摩擦模块和法兰片紧固机构,与现有技术相比,本发明设计合理,结构简单,通过设置法兰密封套和防腐摩擦模块的方式,配合第一密封圈和第二密封圈,将主轴法兰和转轴法兰的接触面牢牢地密封起来,而防腐摩擦模块上设置的防腐摩擦涂层能够增强主轴法兰和转轴法兰接触面的摩擦力,并起到防腐功能,法兰密封套能将水流与主轴法兰和转轴法兰接触面相互隔离开来,增加了法兰连接的稳定性、可靠性和耐用性,值得推广。(The invention discloses a water turbine runner main shaft flange with an anti-corrosion friction structure, which comprises a main shaft flange, a rotating shaft flange, a flange sealing sleeve, a flange mounting groove, an anti-corrosion friction module and a flange piece fastening mechanism.)

1. The utility model provides a take anticorrosive friction structure's hydraulic turbine runner main shaft flange which characterized in that: comprises a main shaft flange (1), a rotating shaft flange (2), a flange sealing sleeve (3), a flange mounting groove (4), an anti-corrosion friction module (5) and a flange piece fastening mechanism (6), a rotating shaft flange (2) is arranged on the right side of the main shaft flange (1), a flange sealing sleeve (3) is arranged between the main shaft flange (1) and the rotating shaft flange (2), a flange mounting groove (4) is arranged in the flange sealing sleeve (3), a flange connecting sheet of the main shaft flange (1) and the rotating shaft flange (2) is positioned in the flange mounting groove (4), an anti-corrosion friction module (5) is arranged between the flange connecting piece of the main shaft flange (1) and the rotating shaft flange (2), the outer sides of the main shaft flange (1) and the rotating shaft flange (2) are provided with flange sheet fastening mechanisms (6), the flange piece fastening mechanism (6) firmly fixes the main shaft flange (1) and the rotating shaft flange (2) in the flange mounting groove (4).

2. The turbine runner main shaft flange with the anti-corrosion friction structure as claimed in claim 1, wherein: the flange surfaces of the main shaft flange (1) and the rotating shaft flange (2) are respectively provided with a plurality of main shaft flange connecting holes (11) and rotating shaft flange connecting holes (21).

3. The turbine runner spindle flange with an anticorrosive friction structure as claimed in claim 2, characterized in that: the spindle flange connecting holes (11) and the rotating shaft flange connecting holes (21) are the same in number, the number of the spindle flange connecting holes (11) is at least 4, and the included angle between each spindle flange connecting hole (11) is the same as the included angle between each rotating shaft flange connecting hole (21).

4. The turbine runner spindle flange with an anticorrosive friction structure as claimed in claim 2, characterized in that: anticorrosive friction module (5) are stainless steel's cylinder, the left and right sides of anticorrosive friction module (5) is equipped with anticorrosive friction coating (51), still be equipped with a plurality of and main shaft flange connecting hole (11) and pivot flange connecting hole (21) corresponding connect the via hole (52) on anticorrosive friction module (5).

5. The turbine runner main shaft flange with the anti-corrosion friction structure as claimed in claim 1, wherein: the sealing structure is characterized in that a plurality of inner threaded holes (31) are formed in two side walls of the flange sealing sleeve (3), a group of first sealing ring mounting grooves (32) are formed in the inner wall of the flange sealing sleeve (3), and first sealing rings (33) are arranged in the first sealing ring mounting grooves (32).

6. The turbine runner main shaft flange with the anti-corrosion friction structure as claimed in claim 4, wherein: the quantity of interior screw hole (31) is 4 at least, interior screw hole (31) are ring shape evenly distributed along the axis of flange seal cover (3), two first sealing washer mounting grooves (32) are located the left and right sides of flange seal cover (3) inner wall respectively.

7. The turbine runner main shaft flange with the anti-corrosion friction structure as claimed in claim 4, wherein: the flange plate fastening mechanism (6) comprises a flange plate fastening piece (61), an installation through hole (62), a second sealing ring installation groove (63), a second sealing ring (64), a flange connection hole (65), a fastening screw hole (66), an insertion protrusion (67), an insertion groove (68) and an insertion protrusion fixing screw hole (69), the flange plate fastening mechanism (6) is formed by combining two flange plate fastening pieces (61) which are vertically symmetrical, the installation through hole (62) is arranged at the center of the flange plate fastening piece (61), the second sealing ring installation groove (63) is arranged on the outer side of the installation through hole (62), a second sealing ring (64) is arranged inside the second sealing ring installation groove (63), the flange connection hole (65) is arranged on the outer side of the second sealing ring installation groove (63), and the fastening screw hole (66) corresponding to the inner screw hole (31) is arranged on the outer side of the flange connection hole (65), the left end and the right end of the bottom of the flange fastening piece (61) are respectively provided with an inserting protrusion (67) and an inserting groove (68), and the right side wall of the inserting groove (68) is provided with an inserting protrusion fixing screw hole (69).

8. The main shaft flange of the water turbine runner with the anti-corrosion friction structure as claimed in claims 1 to 7, wherein: the inside diameter of flange mounting groove (4) is the same with the diameter of anticorrosive friction module (5), the diameter of anticorrosive friction module (5) is the same with the diameter of the flange piece of main shaft flange (1) and pivot flange (2).

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of fasteners, in particular to a main shaft flange of a water turbine runner with an anti-corrosion friction structure.

[ background of the invention ]

Impulse turbines are also commonly referred to as high head turbines due to their high head. In normal operation, the high-head high-pressure water flow impacts the rotating wheel of the water turbine and drives the main shaft of the water turbine and the main shaft of the generator to rotate, so that the rotor of the generator is driven to cut magnetic lines of force to generate power. In the prior art, a turbine runner is connected with a main shaft of a generator through a flange, and the high-head turbine has higher water head, stronger water flow impact force and higher rotating speed of the runner, so that the requirement on the stability of the joint surface of the turbine runner and the main shaft is higher. In addition, the joint surface of the turbine runner and the main shaft flange is just positioned at the main part of the impact of strong impact force water flow, and the stability, reliability and service life of the joint surface are seriously influenced by the erosion of the water flow to the joint surface. Obviously, the joint surface structure of the turbine runner and the main shaft flange in the prior art has the problems that strong impact water flow affects the stability of the joint surface of the turbine runner and the main shaft, and erosion of the joint surface by the water flow affects the stability, reliability, service life and the like, so that a turbine runner main shaft flange with an anti-corrosion friction structure is needed to be provided.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a main shaft flange of a water turbine runner with an anti-corrosion friction structure.

In order to achieve the purpose, the invention provides a water turbine runner main shaft flange with an anti-corrosion friction structure, which comprises a main shaft flange, a rotating shaft flange, a flange sealing sleeve, a flange mounting groove, an anti-corrosion friction module and a flange piece fastening mechanism, wherein the rotating shaft flange is arranged on the right side of the main shaft flange, the flange sealing sleeve is arranged between the main shaft flange and the rotating shaft flange, the flange mounting groove is formed in the flange sealing sleeve, a flange connecting piece of the main shaft flange and the rotating shaft flange is positioned in the flange mounting groove, the anti-corrosion friction module is arranged between the main shaft flange and the flange connecting piece of the rotating shaft flange, the flange piece fastening mechanism is arranged on the outer sides of the main shaft flange and the rotating shaft flange, and the flange piece fastening mechanism firmly.

Preferably, the flange surfaces of the spindle flange and the rotating shaft flange are respectively provided with a plurality of spindle flange connecting holes and rotating shaft flange connecting holes.

Preferably, the number of the main shaft flange connecting holes is the same as that of the rotating shaft flange connecting holes, the number of the main shaft flange connecting holes is at least 4, and the included angle between each main shaft flange connecting hole is the same as that between each rotating shaft flange connecting hole.

Preferably, the anticorrosion friction module is a stainless steel cylinder, anticorrosion friction coatings are arranged on the left side and the right side of the anticorrosion friction module, and a plurality of connecting through holes corresponding to the spindle flange connecting holes and the rotating shaft flange connecting holes are further formed in the anticorrosion friction module.

Preferably, a plurality of inner threaded holes are formed in two side walls of the flange sealing sleeve, a group of first sealing ring mounting grooves are formed in the inner wall of the flange sealing sleeve, and first sealing rings are arranged in the first sealing ring mounting grooves.

Preferably, the number of the inner screw holes is at least 4, the inner screw holes are uniformly distributed in a circular ring shape along the axis of the flange sealing sleeve, and the two first sealing ring mounting grooves are respectively positioned on the left side and the right side of the inner wall of the flange sealing sleeve.

Preferably, the flange plate fastening mechanism comprises a flange plate fastening plate, a mounting through hole, a second sealing ring mounting groove, a second sealing ring, a flange connecting hole, a fastening screw hole, an inserting protrusion, an inserting groove and an inserting protrusion fixing screw hole, the flange plate fastening mechanism is formed by combining two flange plate fastening plates which are symmetrical up and down, a mounting through hole is arranged at the center of each flange plate fastening plate, a second sealing ring mounting groove is arranged on the outer side of the mounting through hole, a second sealing ring is arranged in the second sealing ring mounting groove, a flange connecting hole is arranged on the outer side of the second sealing ring mounting groove, a fastening screw hole corresponding to the inner screw hole is arranged on the outer side of the flange connecting hole, the left end and the right end of the bottom of the flange fastening piece are respectively provided with an inserting protrusion and an inserting groove, and the right side wall of the inserting groove is provided with an inserting protrusion fixing screw hole.

Preferably, the inner diameter of the flange mounting groove is the same as the diameter of the anti-corrosion friction module, and the diameter of the anti-corrosion friction module is the same as the diameter of the flange pieces of the spindle flange and the spindle flange.

The invention has the beneficial effects that: the flange sheet fastening mechanism and the flange sealing sleeve can isolate water flow from the contact surfaces of the spindle flange and the rotating shaft flange, so that the stability, reliability and durability of flange connection are improved; the flange plate fastening mechanism is formed by the separable flange plate fastening pieces, so that the mounting difficulty of the flange plate fastening mechanism is reduced, and the replacement and the disassembly of the flange plate fastening mechanism are simple; the connection stability between the flange plate fastening pieces is improved by arranging the inserting protrusions, the inserting grooves and the inserting protrusion fixing screw holes, and the flange plate fastening pieces are prevented from loosening to cause the reduction of sealing performance and influence on the actual using effect; through the mode that sets up fastening screw to cooperate the interior screw hole for flange piece fastening device can firmly be fixed in the both sides of flange seal cover, forms effective seal, has strengthened the leakproofness of flange seal cover greatly, has reduced the possibility that rivers got into the flange seal cover.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a main shaft flange of a water turbine runner with an anti-corrosion friction structure.

Fig. 2 is a schematic structural diagram of a flange plate fastening mechanism in a main shaft flange of a water turbine runner with an anti-corrosion friction structure.

In the figure: 1-a main shaft flange, 11-a main shaft flange connecting hole, 2-a rotating shaft flange, 21-a rotating shaft flange connecting hole, 3-a flange sealing sleeve, 31-an internal screw hole, 32-a first sealing ring mounting groove, 33-a first sealing ring, 4-a flange mounting groove, 5-an anticorrosion friction module, 51-an anticorrosion friction coating, 52-a connecting through hole, 6-a flange piece fastening mechanism, 61-a flange piece fastening piece, 62-a mounting through hole, 63-a second sealing ring mounting groove, 64-a second sealing ring, 65-a flange connecting hole, 66-a fastening screw hole, 67-an insertion bulge, 68-an insertion groove and 69-an insertion bulge fixing screw hole.

[ detailed description ] embodiments

Referring to the attached drawings, the invention relates to a water turbine runner main shaft flange with an anti-corrosion friction structure, which comprises a main shaft flange 1, a rotating shaft flange 2, a flange sealing sleeve 3, a flange mounting groove 4, an anti-corrosion friction module 5 and a flange piece fastening mechanism 6, a rotating shaft flange 2 is arranged on the right side of the main shaft flange 1, a flange sealing sleeve 3 is arranged between the main shaft flange 1 and the rotating shaft flange 2, a flange mounting groove 4 is arranged inside the flange sealing sleeve 3, a flange connecting sheet of the main shaft flange 1 and the rotating shaft flange 2 is positioned inside the flange mounting groove 4, an anti-corrosion friction module 5 is arranged between the flange connecting sheets of the main shaft flange 1 and the rotating shaft flange 2, the flange piece fastening mechanism 6 is arranged on the outer sides of the main shaft flange 1 and the rotating shaft flange 2, and the flange piece fastening mechanism 6 firmly fixes the main shaft flange 1 and the rotating shaft flange 2 in the flange mounting groove 4.

The flange surfaces of the spindle flange 1 and the rotating shaft flange 2 are respectively provided with a plurality of spindle flange connecting holes 11 and a plurality of rotating shaft flange connecting holes 21.

The number of the spindle flange connecting holes 11 is the same as that of the spindle flange connecting holes 21, the number of the spindle flange connecting holes 11 is at least 4, and an included angle between each spindle flange connecting hole 11 is the same as that between each spindle flange connecting hole 21.

The anticorrosion friction module 5 is a stainless steel cylinder, anticorrosion friction coatings 51 are arranged on the left side and the right side of the anticorrosion friction module 5, and a plurality of connecting through holes 52 corresponding to the spindle flange connecting holes 11 and the rotating shaft flange connecting holes 21 are further formed in the anticorrosion friction module 5.

A plurality of inner screw holes 31 are formed in two side walls of the flange sealing sleeve 3, a group of first sealing ring mounting grooves 32 are formed in the inner wall of the flange sealing sleeve 3, and first sealing rings 33 are arranged in the first sealing ring mounting grooves 32.

Wherein, the quantity of interior screw hole 31 is 4 at least, interior screw hole 31 is the annular evenly distributed of circle along flange seal cover 3's axis, two first sealing washer mounting grooves 32 are located the left and right sides of flange seal cover 3 inner wall respectively.

Wherein, the flange fastening mechanism 6 comprises a flange fastening piece 61, a mounting through hole 62, a second sealing ring mounting groove 63, a second sealing ring 64, a flange connecting hole 65, a fastening screw hole 66, an inserting protrusion 67, an inserting groove 68 and an inserting protrusion fixing screw hole 69, the flange fastening mechanism 6 is formed by combining two flange fastening pieces 61 which are symmetrical up and down, the mounting through hole 62 is arranged at the center of the flange fastening piece 61, the second sealing ring mounting groove 63 is arranged at the outer side of the mounting through hole 62, the second sealing ring 64 is arranged in the second sealing ring mounting groove 63, the flange connecting hole 65 is arranged at the outer side of the second sealing ring mounting groove 63, the fastening screw hole 66 corresponding to the inner screw hole 31 is arranged at the outer side of the flange connecting hole 65, the inserting protrusion 67 and the inserting groove 68 are respectively arranged at the left end and the right end of the bottom of the flange fastening piece 61, the right side wall of the insertion groove 68 is provided with an insertion protrusion fixing screw hole 69.

The inner diameter of the flange mounting groove 4 is the same as the diameter of the anti-corrosion friction module 5, and the diameter of the anti-corrosion friction module 5 is the same as the diameter of the flange pieces of the spindle flange 1 and the spindle flange 2.

The working process of the invention is as follows:

the invention relates to a water turbine runner spindle flange with an anticorrosive friction structure, which comprises the following components in the working process:

firstly: placing the second sealing ring 64 in the two sealing ring mounting grooves 63, aligning the inserting protrusion 67 of the flange plate fastening piece 61 with the inserting groove 68 of the other flange plate fastening piece 61, and after splicing is completed, screwing the fixing bolt into the inserting protrusion fixing screw hole 69 to complete assembly of the flange plate fastening mechanism 6;

secondly, the method comprises the following steps: inserting a main shaft flange 1, an anticorrosive friction module 5 and a rotating shaft flange 2 into a flange mounting groove 4, then sleeving a flange piece fastening mechanism 6 which is completely mounted on the outer sides of the main shaft flange 1 and the rotating shaft flange 2, rotating the flange piece fastening mechanism 6, aligning a fastening screw hole 66 with an inner screw hole 31, then screwing a fastening bolt into the fastening screw hole 66, and mutually connecting the flange piece fastening mechanism 6 and the flange mounting groove 4;

and finally: inserting the flange connecting bolt into a main shaft flange connecting hole 11 of a main shaft flange 1 from left to right, continuously adjusting the positions of the main shaft flange 1 and a rotating shaft flange 2 until the right end of the flange connecting bolt penetrates out of a rotating shaft flange connecting hole 21, and then fixing the flange connecting bolt through a fastening nut to complete the whole flange connection.

Compared with the prior art, the flange sealing sleeve is reasonable in design and simple in structure, the contact surfaces of the main shaft flange 1 and the rotating shaft flange 2 are firmly sealed by arranging the flange sealing sleeve 3 and the anti-corrosion friction module 5 and matching the first sealing ring 33 and the second sealing ring 64, the anti-corrosion friction coating 51 arranged on the anti-corrosion friction module 5 can enhance the friction force of the contact surfaces of the main shaft flange 1 and the rotating shaft flange 2 and has an anti-corrosion function, the flange piece fastening mechanism 6 and the flange sealing sleeve 3 can isolate water flow from the contact surfaces of the main shaft flange 1 and the rotating shaft flange 1, and the stability, reliability and durability of flange connection are improved; the flange plate fastening mechanism 6 is formed by arranging the separable flange plate fastening pieces 61, so that the mounting difficulty of the flange plate fastening mechanism 6 is reduced, and the replacement and the disassembly of the flange plate fastening mechanism 6 are simple; by arranging the inserting protrusion 67, the inserting groove 68 and the inserting protrusion fixing screw hole 69, the connection stability between the flange plate fastening pieces 61 is improved, and the flange plate fastening pieces 61 are prevented from loosening to cause the reduction of the sealing property and influence on the actual using effect; through the mode that the fastening screw holes 66 are arranged to be matched with the inner screw holes 31, the flange piece fastening mechanisms 6 can be firmly fixed on the two sides of the flange sealing sleeves 3 to form effective sealing, the sealing performance of the flange sealing sleeves 3 is greatly enhanced, and the possibility that water flows enter the flange sealing sleeves 3 is reduced.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.