CN215146894U - Steam turbine wheel disc locating pin - Google Patents

Steam turbine wheel disc locating pin Download PDF

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Publication number
CN215146894U
CN215146894U CN202120448334.0U CN202120448334U CN215146894U CN 215146894 U CN215146894 U CN 215146894U CN 202120448334 U CN202120448334 U CN 202120448334U CN 215146894 U CN215146894 U CN 215146894U
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CN
China
Prior art keywords
connecting rod
pin body
cam
oil
pin
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Active
Application number
CN202120448334.0U
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Chinese (zh)
Inventor
李永钢
宋吉山
潘美丽
张峰
吴利龙
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Qingdao Yiforging Heavy Industry Co ltd
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Qingdao Yiforging Heavy Industry Co ltd
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Priority to CN202120448334.0U priority Critical patent/CN215146894U/en
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Publication of CN215146894U publication Critical patent/CN215146894U/en
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Abstract

The utility model discloses a steam turbine rim plate locating pin, including locating pin base, connecting rod, notes oil pipe and screw bolt, the top of locating pin base is provided with the round pin body, and the inside of the round pin body is connected with the movable plate through expanding spring to the bottom welded fastening of the round pin body has the connecting rod, the bottom of connecting rod is run through the spacing groove and is contacted with the gag lever post. This steam turbine rim plate locating pin, there is the cam at the internally mounted of locating pin base, through the rotation to the oiling pipe, make the cam rotate, thereby make the cam extrude the connecting rod, make the connecting rod carry out the regulation of position, make things convenient for the connecting rod to drive the round pin body and remove, thereby enlarge the diameter scope of the round pin body, make the round pin body can adapt to the pinhole of different specifications, thereby improve the practicality, install the activity piece on the round pin body simultaneously, make the activity piece closely combine with several rim plates of the steamer under resistance spring's elastic action, thereby improve the accuracy of butt joint.

Description

Steam turbine wheel disc locating pin
Technical Field
The utility model relates to a steam turbine rim plate production technical field specifically is a steam turbine rim plate locating pin.
Background
In the process of car rim plate production, need fix, need confirm its and the relative position relation between the machine tool fixture base by the locating pin during clamping usually, consequently need use the turbine rim plate locating pin, but common turbine rim plate locating pin still has following problem in the existing market:
1. a certain gap inevitably exists between the common positioning pin and the pin hole, the gap directly influences the assembly precision, and the diameter of the common positioning pin is mostly fixed, so that the positioning pin cannot be adjusted according to different pin hole diameters, and the practicability of the positioning pin is reduced;
2. general locating pin passes through flange welding or threaded connection on anchor clamps, and threaded connection can appear rusty phenomenon in long-time use, leads to the locating pin can not be nimble twist to move for when the locating pin appears damaging, be difficult for changing, thereby influence work efficiency.
Aiming at the problems, the novel design is carried out on the basis of the original turbine wheel disc positioning pin.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steam turbine rim plate locating pin, with solve common steam turbine rim plate locating pin on the existing market that proposes in the above-mentioned background art, certain clearance must be had between ordinary locating pin and the pinhole unavoidably, this clearance directly has influenced the assembly precision, general locating pin diameter all is fixed simultaneously, make the locating pin can not adjust according to the pinhole diameter of difference, thereby reduce the practicality of locating pin, general locating pin passes through flange welding or threaded connection on anchor clamps simultaneously, threaded connection is likely to appear rusty phenomenon in long-time use, lead to the flexible twisting of locating pin and move, make when the damage appears in the locating pin, be difficult for changing, thereby influence work efficiency's problem.
In order to achieve the above object, the utility model provides a following technical scheme: a turbine wheel disc positioning pin comprises a positioning pin base, a connecting rod, an oil injection pipe and a threaded bolt, the top of the positioning pin base is provided with a pin body, the inside of the pin body is connected with the movable sheet through a telescopic spring, and the bottom of the pin body is welded and fixed with a connecting rod, the bottom of the connecting rod penetrates through the limiting groove to be contacted with the limiting rod, one side of the connecting rod is connected with the inner wall of the positioning pin base through a resistance spring, an oil filling pipe is arranged in the middle of the positioning pin base, the outer surface of the oil filling pipe is welded and fixed with the cam, a limiting hole is arranged on the outer side of the cam, the inner wall of the limit hole is contacted with the connecting rod, an injection port is arranged in the oil injection pipe, the injection port is communicated with the oil pipe groove through an oil cavity, the bottom of the positioning pin base is provided with a threaded bolt, and the surface of the threaded bolt is provided with a notch, and the inside of the notch is connected with the oil pipe groove through an oil outlet.
Preferably, the top of the pin body is arranged obliquely, the pin body is distributed on the positioning pin base at equal angles, the pin body and the movable sheet form a telescopic structure through a telescopic spring, and the surface of the movable sheet is located on the outer side of the pin body.
Preferably, the pin body forms a sliding structure through the connecting rod and the limiting groove, the connecting rod and the limiting rod are in sliding connection, the connecting rod forms a telescopic structure through the resistance spring and the positioning pin base, and the resistance spring is located on the outer side of the limiting rod.
Preferably, the oil filling pipe is located in the middle of the pin body, the oil filling pipe and the cam are of an integrated structure, and the cam is located inside the positioning pin base.
Preferably, the outer side of the cam is provided with limit holes at equal angles, the distance between each limit hole and the position of the central axis of the cam is increased clockwise, the opening of each limit hole is inclined, and the limit holes are attached to the connecting rod.
Preferably, the threaded bolt is located at the bottom of the positioning pin base, a threaded notch is formed in the outer surface of the threaded bolt, the notch, the oil outlet and the oil pipe groove are communicated with each other, and the oil outlet is distributed in the threaded bolt at equal angles.
Compared with the prior art, the beneficial effects of the utility model are that: the positioning pin of the wheel disc of the steam turbine,
1. the positioning pin comprises a positioning pin base, a pin body, a connecting rod, a cam, a resistance spring, a connecting rod, a pin body, a connecting rod, a cam, a connecting rod, a pin shaft and a pin shaft, wherein the cam is arranged in the positioning pin base, and rotates through rotation of the oil injection pipe, so that the cam extrudes the connecting rod, the connecting rod adjusts the position of the connecting rod, the connecting rod drives the pin body to move conveniently, the diameter range of the pin body is enlarged, the pin body can adapt to pin holes with different specifications, the practicability is improved, and meanwhile, the movable piece is arranged on the pin body, and is tightly combined with several turbine wheel discs under the elastic action of the resistance spring, and the accuracy of butt joint is improved;
2. install the screw bolt in the bottom of locating pin base, and the surface of screw bolt is provided with oil-out and notch, injects engine oil through the injection port for the even machine oil that paints in surface of screw bolt, thereby avoid the screw bolt to appear rusty phenomenon in the use of longer time, make things convenient for follow-up change to the locating pin base.
Drawings
FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the top-view connection structure of the oil filling pipe and the cam according to the present invention;
FIG. 3 is a schematic view of the overall top view structure of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
fig. 5 is a schematic view of the overlooking connection structure of the oil pipe groove and the oil outlet of the present invention.
In the figure: 1. a positioning pin base; 2. a pin body; 3. a tension spring; 4. a movable plate; 5. a connecting rod; 6. a limiting rod; 7. a resistance spring; 8. a limiting groove; 9. an oil filling pipe; 10. a cam; 11. a limiting hole; 12. an injection port; 13. an oil chamber; 14. a threaded bolt; 15. an oil pipe groove; 16. an oil outlet; 17. a notch.
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.
Referring to fig. 1-5, the present invention provides a technical solution: a turbine wheel disc positioning pin comprises a positioning pin base 1, a connecting rod 5, an oil injection pipe 9 and a threaded bolt 14, wherein a pin body 2 is arranged at the top of the positioning pin base 1, the inside of the pin body 2 is connected with a movable sheet 4 through a telescopic spring 3, the bottom of the pin body 2 is fixedly welded with the connecting rod 5, the bottom of the connecting rod 5 penetrates through a limiting groove 8 to be in contact with a limiting rod 6, one side of the connecting rod 5 is connected with the inner wall of the positioning pin base 1 through a resistance spring 7, the middle part of the positioning pin base 1 is provided with the oil injection pipe 9, the outer surface of the oil injection pipe 9 is fixedly welded with a cam 10, the outer side of the cam 10 is provided with a limiting hole 11, the inner wall of the limiting hole 11 is in contact with the connecting rod 5, an injection port 12 is arranged inside the oil injection pipe 9, the injection port 12 is communicated with an oil pipe groove 15 through an oil cavity 13, the threaded bolt 14 is arranged at the bottom of the positioning pin base 1, and the surface of the threaded bolt 14 is provided with a notch 17, and the inside of the notch 17 is connected with the oil pipe groove 15 through an oil outlet 16.
The top of the pin body 2 is arranged obliquely, the pin body 2 is distributed on the positioning pin base 1 at equal angles, the pin body 2 forms a telescopic structure through the telescopic spring 3 and the movable sheet 4, and the surface of the movable sheet 4 is located on the outer side of the pin body 2, so that the movable sheet 4 is tightly attached to the pin hole, and the butt joint accuracy is improved.
The round pin body 2 constitutes sliding construction through connecting rod 5 and spacing groove 8, and connecting rod 5 and gag lever post 6 are sliding connection to connecting rod 5 passes through resistance spring 7 and constitutes extending structure with locating pin base 1, and resistance spring 7 is located the outside of gag lever post 6 simultaneously, is favorable to connecting rod 5 closely to laminate with cam 10 under resistance spring 7's elastic action.
The oiling pipe 9 is located the middle part of the pin body 2, and the oiling pipe 9 and the cam 10 are of an integrated structure, and the cam 10 is located inside the positioning pin base 1, so that the oiling pipe 9 can drive the cam 10 to rotate.
The equal angular distribution in the outside of cam 10 has spacing hole 11, and spacing hole 11 increases progressively clockwise with the distance of cam 10 central axis position to spacing hole 11 opening is the slope form, and spacing hole 11 is laminated each other with connecting rod 5 simultaneously, is favorable to the diameter scope through cam 10's rotation adjusting pin body 2.
The threaded bolt 14 is located at the bottom of the positioning pin base 1, a thread-shaped notch 17 is formed in the outer surface of the threaded bolt 14, the notch 17, the oil outlet 16 and the oil pipe groove 15 are communicated with each other, and the oil outlet 16 is distributed in the threaded bolt 14 at equal angles, so that the threaded bolt 14 is convenient to detach and mount.
The working principle is as follows: according to the drawings 1-3, firstly, a worker needs to fix the positioning pin base 1 at a proper position of a clamp through a threaded bolt 14, then the oil injection pipe 9 is rotated to drive a cam 10 to rotate, so that a limiting hole 11 on the cam 10 is inclined and notched to extrude a connecting rod 5, the connecting rod 5 slides on a limiting rod 6, so that the connecting rod 5 compresses a resistance spring 7, the connecting rod 5 is conveniently tightly attached to the outer surface of the cam 10 under the elastic action of the resistance spring 7, the distance between the central axis positions of the limiting hole 11 and the cam 10 is increased clockwise, so that the limiting holes 11 at different positions are adjusted through the rotating cam 10 to be clamped with the connecting rod 5, the position of the connecting rod 5 is adjusted, the connecting rod 5 drives a pin body 2 to slide in a limiting groove 8, and the diameter of the pin body 2 can be adjusted, the pin body 2 can adapt to pin holes with different diameters, so that the practicability of the device is improved;
according to the figures 1 and 4-5, in the long-term use process of the positioning pin base 1, the threaded bolt 14 is oxidized, engine oil needs to be added from the injection port 12 in the middle of the oil injection pipe 9, the engine oil flows into the oil cavity 13 and the oil pipe groove 15 through the injection port 12, the engine oil flows into the notch 17 through the oil outlet 16 on the oil pipe groove 15, the surface of the threaded bolt 14 can be uniformly filled with the engine oil, the flexibility of the threaded bolt 14 is increased, the positioning pin base 1 is convenient to disassemble and replace, meanwhile, when the turbine wheel disc is in butt joint with the pin body 2, the inside of the pin hole in the turbine wheel disc is in extrusion contact with the movable plate 4, the movable plate 4 extrudes the pin hole under the elastic action of the expansion spring 3, the gap between the pin body 2 and the pin hole is favorably eliminated, and the positioning accuracy is improved, the above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.
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 (6)

1. The utility model provides a steam turbine rim plate locating pin, includes locating pin base (1), connecting rod (5), oiling pipe (9) and screw bolt (14), its characterized in that: the top of the positioning pin base (1) is provided with a pin body (2), the inside of the pin body (2) is connected with the movable plate (4) through a telescopic spring (3), the bottom of the pin body (2) is fixedly welded with a connecting rod (5), the bottom of the connecting rod (5) penetrates through a limiting groove (8) to be contacted with a limiting rod (6), one side of the connecting rod (5) is connected with the inner wall of the positioning pin base (1) through a resistance spring (7), the middle part of the positioning pin base (1) is provided with an oil filling pipe (9), the outer surface of the oil filling pipe (9) is fixedly welded with a cam (10), the outer side of the cam (10) is provided with a limiting hole (11), the inner wall of the limiting hole (11) is contacted with the connecting rod (5), the inside of the oil filling pipe (9) is provided with an injection port (12), and the injection port (12) is communicated with an oil pipe groove (15) through an oil cavity (13), the bottom of the positioning pin base (1) is provided with a threaded bolt (14), the surface of the threaded bolt (14) is provided with a notch (17), and the inside of the notch (17) is connected with an oil pipe groove (15) through an oil outlet (16).
2. The turbine disk locating pin according to claim 1, wherein: the top of the pin body (2) is obliquely arranged, the pin body (2) is distributed on the positioning pin base (1) at equal angles, the pin body (2) and the movable sheet (4) form a telescopic structure through the telescopic spring (3), and the surface of the movable sheet (4) is positioned on the outer side of the pin body (2).
3. The turbine disk locating pin according to claim 1, wherein: the pin body (2) is in a sliding structure with the limiting groove (8) through the connecting rod (5), the connecting rod (5) is in sliding connection with the limiting rod (6), the connecting rod (5) is in a telescopic structure with the positioning pin base (1) through the resistance spring (7), and meanwhile the resistance spring (7) is located on the outer side of the limiting rod (6).
4. The turbine disk locating pin according to claim 1, wherein: the oil filling pipe (9) is located in the middle of the pin body (2), the oil filling pipe (9) and the cam (10) are of an integrated structure, and the cam (10) is located inside the positioning pin base (1).
5. The turbine disk locating pin according to claim 1, wherein: the outer side of the cam (10) is equiangularly distributed with limiting holes (11), the distance between the limiting holes (11) and the position of the central axis of the cam (10) is increased clockwise, the openings of the limiting holes (11) are inclined, and meanwhile the limiting holes (11) are attached to the connecting rod (5).
6. The turbine disk locating pin according to claim 1, wherein: the threaded bolt (14) is located at the bottom of the positioning pin base (1), a threaded notch (17) is formed in the outer surface of the threaded bolt (14), the notch (17), the oil outlet (16) and the oil pipe groove (15) are communicated with each other, and the oil outlet (16) is distributed in the threaded bolt (14) at equal angles.
CN202120448334.0U 2021-03-02 2021-03-02 Steam turbine wheel disc locating pin Active CN215146894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120448334.0U CN215146894U (en) 2021-03-02 2021-03-02 Steam turbine wheel disc locating pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120448334.0U CN215146894U (en) 2021-03-02 2021-03-02 Steam turbine wheel disc locating pin

Publications (1)

Publication Number Publication Date
CN215146894U true CN215146894U (en) 2021-12-14

Family

ID=79413398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120448334.0U Active CN215146894U (en) 2021-03-02 2021-03-02 Steam turbine wheel disc locating pin

Country Status (1)

Country Link
CN (1) CN215146894U (en)

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