CN110165845B

CN110165845B - Manual keying device for rotor magnetic pole key of hydroelectric generating set

Info

Publication number: CN110165845B
Application number: CN201910336863.9A
Authority: CN
Inventors: 刘羿
Original assignee: Wujiangdu Hydropower Station
Current assignee: Wujiangdu Hydropower Station
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2021-07-16
Anticipated expiration: 2039-04-25
Also published as: CN110165845A

Abstract

The invention discloses a manual keying device for a magnetic pole key of a hydroelectric generating set rotor, which comprises a fixed pipe, wherein the bottom end of the fixed pipe is fixed on a bottom plate, and a key groove frame is arranged at the bottom end of the bottom plate; the outer wall of the fixed pipe is provided with a lifting groove, and a heavy object is slidably sleeved on the outer wall of the fixed pipe; a connecting plate is arranged inside the fixed pipe, a cross beam is arranged on a bottom plate of the connecting plate, and the cross beam penetrates out of the lifting groove and is fixed with the heavy object; a hoisting plate is arranged in the fixed pipe, a steel wire rope is arranged at the upper end of the hoisting plate, and the steel wire rope penetrates out of the fixed pipe; the connecting plate is fixedly provided with a clamping structure used for clamping the hoisting plate, and the upper end inside the fixed pipe is provided with a release ring used for releasing the clamping state of the hoisting plate by the clamping mechanism. Has the advantages that: the device can realize the reciprocal promotion of heavy object, utilizes the heavy object to strike the bottom plate and realizes the typing, and the typing power is even stable, and it is effectual to type.

Description

Manual keying device for rotor magnetic pole key of hydroelectric generating set

Technical Field

The invention relates to the technical field of hydroelectric generating set maintenance and installation auxiliary devices, in particular to a manual keying device for a magnetic pole key of a rotor of a hydroelectric generating set.

Background

The most important link in the maintenance and installation of the magnetic poles of the large and medium-sized hydraulic turbine generator is the key striking of the magnetic pole key, and the existing key striking mode adopts manual key striking. However, the current manual key-striking device has uneven key-striking force, which affects the key-striking effect.

Disclosure of Invention

The invention aims to solve the problems, and provides a manual keying device for a rotor magnetic pole key of a hydroelectric generating set, so as to solve the technical problems that the keying force of the conventional manual keying device is not uniform, the keying effect is influenced and the like in the prior art. The device of the preferred technical scheme in the technical schemes provided by the invention can realize the reciprocating lifting of the weight, and utilizes the weight to strike the bottom plate to realize the key striking, so that the key striking force is uniform and stable, the key striking effect is good, and the like, and the technical effects are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the manual keying device for the magnetic pole key of the rotor of the hydroelectric generating set comprises a fixed pipe, wherein the bottom end of the fixed pipe is fixed on a bottom plate, the bottom end of the bottom plate is provided with a key groove frame, the upper part of the fixed pipe is sleeved with two annular limiting plates, a sliding ring is sleeved on the fixed pipe between the two limiting plates, and the outer wall of the sliding ring is provided with a supporting arm for supporting the fixed pipe;

the outer wall of the fixed pipe is provided with two lifting grooves along the axial direction of the fixed pipe, the two lifting grooves are symmetrically distributed, and a heavy object is slidably sleeved on the outer wall of the fixed pipe; a connecting plate is arranged inside the fixed pipe, a cross beam is arranged at the bottom end of the connecting plate, penetrates out of the lifting groove and is fixed with the heavy object;

a hoisting plate is arranged in the fixed pipe, a steel wire rope is arranged at the upper end of the hoisting plate, and the other end of the steel wire rope penetrates out of a pipe orifice at the top of the fixed pipe; a clamping structure is fixed on the connecting plate, and when the lifting plate falls down on the connecting plate, the clamping structure can clamp the lifting plate; the upper end of the inside of the fixed pipe is provided with a release ring, the steel wire rope is pulled to drive the connecting plate and the heavy object to be lifted in the fixed pipe, and in the lifting process of the connecting plate, when the clamping structure on the connecting plate is abutted to the release ring, the clamping structure loosens the lifting plate.

Preferably, the clamping structure comprises a plurality of bearing frames vertically fixed on the connecting plate, the bearing frames are uniformly distributed on the connecting plate in a circumferential manner, a penetrating mounting frame is arranged on each bearing frame, a clamping block is mounted in each mounting frame through a torsion spring shaft, a torsion spring is sleeved on each torsion spring shaft, one end of each torsion spring is fixed with each clamping block, and the other end of each torsion spring is fixed on each mounting frame; one side of the clamping block, which is close to the center of the connecting plate, is of an outwards protruding wedge-shaped structure, the width of the clamping block is gradually increased from top to bottom, and a limiting assembly is arranged on one side, which is far away from the center of the connecting plate, of the clamping block;

the limiting assembly comprises a connecting rod and a limiting block, one end of the connecting rod is fixed to the clamping block, and the other end of the connecting rod penetrates out of the mounting frame and is fixed to the limiting block.

Preferably, the outer wall of the fixed pipe is provided with vertical adjusting grooves in a penetrating mode, the adjusting grooves and the lifting grooves are distributed in a staggered mode, the number of the adjusting grooves is two, the adjusting grooves are distributed symmetrically, and adjusting assemblies used for adjusting the installation height of the release rings are arranged at the positions of the adjusting grooves.

Preferably, the adjusting assembly comprises an adjusting bolt, one end of the adjusting bolt penetrates through the adjusting groove to be fixedly connected with the release ring, and the other end of the adjusting bolt locks the release ring on the fixed pipe through an adjusting pressing block and an adjusting nut.

Preferably, the bottom surface of the release ring is provided with an inclined surface matched with the inclined surface of the wedge-shaped structure of the clamping block.

Preferably, the fixed pipe is provided with a fixed pulley at the upper end thereof for steering the steel wire rope through a pulley bracket.

Preferably, the outer wall of the keyway frame is provided with a locking bolt in a penetrating manner through threads, and the inner end of the locking bolt is provided with a rubber pad.

Preferably, the support arm includes the fixed arm, the fixed arm is total three, and evenly distributed is in the slip ring outside, every the one end of fixed arm is fixed with the slip ring, and the fixed arm other end articulates there is the swinging boom, the swinging boom other end passes through buffer spring and connects fixed buffering arm.

Preferably, the bottom end of the buffer arm is hinged to the bottom plate, the bottom plate is provided with a fixing hole, and the support plate can be fixed with the ground or other fixed objects by penetrating through the fixing hole through a locking bolt.

When the manual keying device for the rotor magnetic pole key of the hydroelectric generating set is used, the magnetic pole key is clamped into the key groove frame, the magnetic pole key corresponds to the rotor magnetic pole groove of the hydraulic turbine generator when the keying device is used, the device is supported and fixed through the supporting arm, when the keying operation is performed, an operator lowers the steel wire rope to enable the hoisting plate to descend in the fixed pipe, when the hoisting plate falls down on the connecting plate, the clamping structure can clamp the hoisting plate, the hoisting plate is pulled up through the steel wire rope, the hoisting plate is clamped through the clamping structure, the hoisting plate drives the connecting plate to ascend through the clamping mechanism in the ascending process, the cross beam ascends in the lifting groove along with the ascending of the connecting plate, and finally the heavy object ascends on the outer wall of the fixed pipe, along with the rising of jack-up board, in the connecting plate promotion in-process, when the chucking structure on the connecting plate with release ring counterbalance, chucking structure loosens the jack-up board, the heavy object descends under self action of gravity, through the heavy object is to the bottom plate strikes to key the magnetic pole key, repeat above-mentioned operation process, can realize reciprocating rising and the decline of heavy object accomplishes the operation of striking a key, easy operation is convenient, and the power of striking a key is even stable, strikes a key of high quality.

Has the advantages that: the device can realize the reciprocal promotion of heavy object, utilizes the heavy object to strike the bottom plate and realizes the typing, and the typing power is even stable, and it is effectual to type.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a key device according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of a key press according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the internal structure of the key frame of the present invention;

FIG. 4 is an enlarged schematic view of the adjustment assembly construction of the present invention;

FIG. 5 is an enlarged view of the clamping structure of the present invention;

fig. 6 is a top cross-sectional enlarged schematic view of the clamping structure of the present invention.

The reference numerals are explained below:

1. a keyway frame; 2. locking the bolt; 201. a rubber pad; 3. a base plate; 4. a weight; 5. a support arm; 501. a fixed arm; 502. a rotating arm; 503. a buffer spring; 504. a buffer arm; 505. a support plate; 6. a fixed tube; 601. a lifting groove; 602. an adjustment groove; 7. a limiting plate; 8. a slip ring; 9. a fixed pulley; 901. a pulley bracket; 10. a wire rope; 11. a cross beam; 12. a connecting plate; 13. a clamping structure; 1301. a carrier; 1302. a limiting component; 13021. a limiting block; 13022. a connecting rod; 1303. installing a frame; 1304. a torsion spring shaft; 1305. a clamping block; 14. a lifting plate; 15. an adjustment assembly; 1501. adjusting the bolt; 1502. adjusting the nut; 1503. adjusting a pressing block; 16. the ring is released.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-6, the invention provides a manual keying device for a rotor magnetic pole key of a hydroelectric generating set, which comprises a fixed tube 6, wherein the bottom end of the fixed tube 6 is fixed on a bottom plate 3, a key groove frame 1 is installed at the bottom end of the bottom plate 3, two annular limiting plates 7 are sleeved on the upper part of the fixed tube 6, a sliding ring 8 is sleeved on the fixed tube 6 between the two limiting plates 7, and a supporting arm 5 for supporting the fixed tube 6 is installed on the outer wall of the sliding ring 8;

the outer wall of the fixed pipe 6 is provided with two lifting grooves 601 along the axial direction of the fixed pipe 6, the two lifting grooves 601 are symmetrically distributed, the outer wall of the fixed pipe 6 is slidably sleeved with the weight 4, the preferable weight 4 is of an annular structure, and the weight 4 is in clearance fit with the fixed pipe 6, so that the weight 4 can stably slide outside the fixed pipe 6, the striking stability of the weight 4 on the bottom plate 3 is ensured, and the quality of key striking is favorably ensured; a connecting plate 12 is arranged inside the fixed pipe 6, a cross beam 11 is arranged at the bottom end of the connecting plate 12, and the cross beam 11 penetrates out of the lifting groove 601 and is fixed with the heavy object 4;

a hoisting plate 14 is arranged in the fixed pipe 6, a steel wire rope 10 is arranged at the upper end of the hoisting plate 14, and the other end of the steel wire rope 10 penetrates out of a pipe orifice at the top of the fixed pipe 6; a clamping structure 13 is fixed on the connecting plate 12, and when the lifting plate 14 falls down on the connecting plate 12, the clamping structure 13 can clamp the lifting plate 14; a release ring 16 is installed at the upper end inside the fixed pipe 6, the steel wire rope 10 is pulled to drive the connecting plate 12 and the heavy object 4 to be lifted in the fixed pipe, and when the clamping structure 13 on the connecting plate 12 is abutted to the release ring 16 in the lifting process of the connecting plate 12, the clamping structure 13 releases the lifting plate 14.

As an optional embodiment, the clamping structure 13 includes a bearing frame 1301 vertically fixed on the connecting plate, the bearing frame 1301 is provided with a plurality of bearing frames 1301, the bearing frames 1301 are evenly distributed on the connecting plate 12 in a circumferential direction, a through mounting frame 1303 is provided on the bearing frame 1301, a clamping block 1305 is mounted in the mounting frame 1303 through a torsion spring shaft 1304, a torsion spring is sleeved on the torsion spring shaft, one end of the torsion spring is fixed with the clamping block, and the other end of the torsion spring is fixed on the mounting frame; one side of the clamping block 1305, which is close to the center of the connecting plate 12, is of an outward protruding wedge-shaped structure, the width of the clamping block 1305 is gradually increased from top to bottom, and one side, which is far away from the center of the connecting plate 12, of the clamping block 1305 is provided with a limiting assembly 1302; when the device is used, an operator lowers the wire rope 10 to lower the hoisting plate 14 in the fixed pipe 6 until the hoisting plate 14 contacts the clamping block 1305, the clamping block 1305 rotates in a direction away from the center of the connecting plate 12 against the elastic force of the torsion spring by using the gravity of the hoisting plate 14, the extrusion force of the hoisting plate 14 on the clamping block 1305 disappears after the hoisting plate 14 falls below the clamping block 1305, the clamping block 1305 returns under the action of the torsion spring, the hoisting plate 14 is limited between the clamping block 1305 and the connecting plate 12, when the hoisting plate 14 is pulled upwards through the wire rope 10, the hoisting plate 14 abuts against the clamping block 1305, and under the limiting action of the limiting assembly 1302, the clamping block 1305 is prevented from being separated from the hoisting plate 14 due to the rotation of the clamping block 1305, so that the connecting plate 12 is ensured to rise synchronously with the hoisting plate 14. In the lifting process of the connecting plate 12, when the release ring 16 abuts against the clamping block 1305, the release ring 16 overcomes the elastic force of the torsion spring, pushes the clamping block 1305 to rotate in the direction away from the center of the connecting plate 12, releases the clamping of the clamping block 1305 on the lifting plate 14, and accordingly enables the heavy object 4 to fall under the action of gravity to implement keying.

Further, the limiting component 1302 comprises a connecting rod 13022 and a limiting block 13021, the connecting rod 13022 is installed on the outer side of the clamping block 1305 away from the center of the connecting plate 12, one end of the connecting rod 13022 is fixed with the clamping block 1305, and the other end of the connecting rod 13022 penetrates through the mounting frame 1303 and is fixed with the limiting block 13021. It should be noted that, at least the width size of stopper is greater than the width of installing frame to ensure the stopper can't pass the installing frame, from this, when the chucking piece receives the effort towards connecting plate center direction, contradict the limiting displacement who realizes the stopper through stopper and installing frame.

Still further, the outer side of the clamping block 1305 close to the center of the connecting plate 12 can be provided with a convex arc-shaped surface, which is beneficial to reducing the sliding friction force between the hoisting plate and the clamping block, so that the clamping block can be smoothly jacked open when the hoisting plate falls down.

As optional implementation mode, the outer wall of the fixed pipe 6 vertically penetrates through and is provided with the adjusting groove 602, the adjusting groove 602 and the lifting groove 601 are distributed in a staggered manner, the two adjusting grooves 602 are total, and are symmetrically distributed, the adjusting assembly 15 for adjusting the height of the release ring 16 is arranged inside the adjusting groove 602, so that the adjusting assembly 15 can adjust the height of the release ring 16 inside the fixed pipe 6, thereby adjusting the descending height of the heavy object 4, realizing the adjustment of the keying force, meeting the requirements of different keying degrees, and achieving a good use effect.

As an optional embodiment, the adjusting assembly 15 includes an adjusting bolt 1501, the adjusting bolt 1501 penetrates through the adjusting groove 602, the inner end of the adjusting bolt 1501 is connected with the release ring 16, an adjusting nut 1502 is installed on the outer side of the adjusting bolt 1501 through threads, an adjusting press block 1503 is sleeved on the outer side of the adjusting bolt 1501 and is located between the fixed tube 6 and the adjusting nut 1502, when the height of the release ring 16 needs to be adjusted, the adjusting nut 1502 is loosened to enable the adjusting bolt 1501 to ascend and descend inside the adjusting groove 602 to achieve height adjustment of the release ring 16, and the adjusting nut 1502 is screwed after the adjustment is completed to enable the adjusting press block 1503 to abut against the outer wall of the fixed tube 6, so that the release ring 16 is fixed.

As an alternative, the surfaces of adjusting block 1503 are provided with anti-slip threads, which can improve the friction between adjusting block 1503 and adjusting nut 1502 and fixing tube 6, and help improve the fixing stability of release ring 16.

As an alternative embodiment, the bottom surface of the release ring 16 is provided with an inclined surface matching the inclined surface of the wedge structure of the clamping block 1305 (which ensures a larger contact area between the inclined surface of the wedge structure of the clamping block and the bottom surface of the release ring when the clamping block abuts against the release ring), so that the release ring 16 pushes the clamping block 1305 away from the center of the connecting plate 12 to release the clamping of the hoisting plate 14 by the clamping block 1305.

As an optional implementation manner, the fixed pulley 9 for steering the steel wire rope 10 is installed at the upper end of the fixed pipe 6 through the pulley bracket 901 in a shape like a Chinese character 'ji', so that an operator can conveniently pull the steel wire rope 10 in a labor-saving manner.

As an optional implementation manner, the locking bolt 2 penetrates through the outer wall of the key slot frame 1 through threads, and the rubber pad 201 is mounted at the inner end of the locking bolt 2, so that the magnetic pole keys with different sizes can be fixed inside the key slot frame 1 through the locking bolt 2, the clamping and fixing of the magnetic pole keys with different sizes can be met, and the application range is wide; the rubber pad 201 can prevent the lock bolt 2 from damaging the surface of the magnetic pole key.

As optional implementation mode, support arm 5 includes fixed arm 501, fixed arm 501 is total three, and evenly distributed is in the slip 8 outside, every fixed arm 501's one end is fixed with the slip 8, and fixed arm 501 other end articulates there is rotating arm 502, the fixed buffer arm 504 is connected through buffer spring 503 to the rotating arm 502 other end, when supporting, adjust the angle between rotating arm 502 and the fixed arm 501, can realize supporting height and adjust, satisfy different supporting height demands, the in-process of typing utilizes buffer spring 503, can realize support arm 5's flexible buffering shock attenuation, can reduce support arm 5 and the loss of the impact force of brace table face heavy object 4, help improving the effect of typing. Further, the bottom end of the buffer arm is hinged to the support plate 505, a fixing hole is formed in the support plate 505, and the support plate 505 can be fixed to the ground or other fixed objects by penetrating through the fixing hole through a locking bolt.

By adopting the structure, when the device is used, the magnetic pole key is clamped into the key slot frame 1, when the key is pressed, the magnetic pole key corresponds to a rotor magnetic pole slot of a hydraulic turbine generator, the device is supported and fixed through the supporting arm 5, when the key pressing operation is carried out, an operator lowers the steel wire rope 10 to enable the lifting plate 14 to descend in the fixed pipe 6, when the lifting plate 14 falls down on the connecting plate 12, the clamping structure 13 can clamp the lifting plate 14, the lifting plate 14 is pulled up through the steel wire rope 10, because the clamping structure 13 clamps the lifting plate 14, the lifting plate 14 drives the connecting plate 12 to ascend through the clamping mechanism in the ascending process, the cross beam 11 ascends in the lifting slot 601 along with the ascending of the connecting plate 12, finally, the heavy object 4 ascends on the outer wall of the fixed pipe 6, along with the ascending of the lifting plate 14, when the clamping structure 13 on the connecting plate 12 is abutted against the release ring 16 in the lifting process of the connecting plate 12, chucking structure 13 pine plays jack-up board 14, and heavy object 4 descends under self action of gravity, strikes bottom plate 3 through heavy object 4 to beat the key to the magnetic pole key, repeat above-mentioned operation process, can realize the reciprocal rising and the decline of heavy object 4, accomplish the operation of beating the key, easy operation is convenient, and the power of beating the key is even stable, beats the key of high quality.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a manual keying device for hydroelectric generating set rotor magnetic pole key which characterized in that: the key groove structure is characterized by comprising a fixed pipe (6), wherein the bottom end of the fixed pipe (6) is fixed on a bottom plate (3), a key groove frame (1) is installed at the bottom end of the bottom plate (3), two annular limiting plates (7) are sleeved on the upper portion of the fixed pipe (6), a sliding ring (8) is sleeved on the fixed pipe (6) between the two limiting plates (7), and a supporting arm (5) used for supporting the fixed pipe (6) is installed on the outer wall of the sliding ring (8);

the outer wall of the fixed pipe (6) is provided with two lifting grooves (601) along the axial direction of the fixed pipe (6), the two lifting grooves (601) are symmetrically distributed, and the outer wall of the fixed pipe (6) is sleeved with a heavy object (4) in a sliding manner; a connecting plate (12) is arranged inside the fixed pipe (6), a cross beam (11) is installed at the bottom end of the connecting plate (12), and the cross beam (11) penetrates out of the lifting groove (601) and is fixed with the heavy object (4);

a hoisting plate (14) is arranged in the fixed pipe (6), a steel wire rope (10) is installed at the upper end of the hoisting plate (14), and the other end of the steel wire rope (10) penetrates out of a pipe orifice at the top of the fixed pipe (6); a clamping structure (13) is fixed on the connecting plate (12), and when the lifting plate (14) falls down on the connecting plate (12), the clamping structure (13) clamps the lifting plate (14); a release ring (16) is mounted at the upper end inside the fixed pipe (6), the connecting plate (12) and the heavy object (4) are driven to lift in the fixed pipe by pulling up the steel wire rope (10), and when the clamping structure (13) on the connecting plate (12) is in contact with the release ring (16) in the lifting process of the connecting plate (12), the clamping structure (13) releases the lifting plate (14);

the weight (4) is of a circular ring structure.

2. The manual keying device for a rotor pole key of a hydroelectric generating set according to claim 1, characterized in that: the clamping structure (13) comprises a bearing frame (1301) vertically fixed on a connecting plate, the bearing frame (1301) is provided with a plurality of bearing frames which are evenly distributed on the connecting plate (12) in a circumferential mode, a penetrating mounting frame (1303) is arranged on the bearing frame (1301), a clamping block (1305) is mounted in the mounting frame (1303) through a torsion spring shaft (1304), a torsion spring is sleeved on the torsion spring shaft, one end of the torsion spring is fixed with the clamping block, and the other end of the torsion spring is fixed on the mounting frame; one side, close to the center of the connecting plate (12), of the clamping block (1305) is of an outwards protruding wedge-shaped structure, the width of the clamping block (1305) is gradually increased from top to bottom, and a limiting assembly (1302) is mounted on one side, far away from the center of the connecting plate (12), of the clamping block (1305);

the limiting assembly (1302) comprises a connecting rod (13022) and a limiting block (13021), one end of the connecting rod (13022) is fixed to the clamping block (1305), and the other end of the connecting rod (13022) penetrates through the mounting frame (1303) and is fixed to the limiting block (13021).

3. A manual keying device for rotor pole keys of hydroelectric generating sets according to claim 2, characterized in that: fixed pipe (6) outer wall is gone up to run through and is provided with vertical adjustment tank (602), adjustment tank (602) with lift groove (601) dislocation distribution, adjustment tank (602) is total two, and symmetric distribution, adjustment tank (602) department is provided with and is used for adjusting release ring (16) mounting height's adjusting part (15).

4. A manual keying device for rotor pole keys of hydroelectric generating sets according to claim 3, characterized in that: the adjusting assembly (15) comprises an adjusting bolt (1501), one end of the adjusting bolt (1501) penetrates through the adjusting groove (602) to be fixedly connected with the release ring (16), and the other end of the adjusting bolt (1501) locks the release ring (16) on the fixing pipe (6) through an adjusting pressing block (1503) and an adjusting nut (1502).

5. A manual keying device for rotor pole keys of hydroelectric generating sets according to claim 2, characterized in that: the bottom surface of the release ring (16) is provided with an inclined surface matching with the inclined surface of the wedge structure of the clamping block (1305).

6. The manual keying device for a rotor pole key of a hydroelectric generating set according to claim 1, characterized in that: and a fixed pulley (9) for steering the steel wire rope (10) is mounted at the upper end of the fixed pipe (6) through a pulley bracket (901).

7. The manual keying device for a rotor pole key of a hydroelectric generating set according to claim 1, characterized in that: the outer wall of keyway frame (1) is installed through the screw thread through-going locking bolt (2), rubber pad (201) are installed to the inner of locking bolt (2).

8. The manual keying device for a rotor pole key of a hydroelectric generating set according to claim 1, characterized in that: support arm (5) are including fixed arm (501), fixed arm (501) are total three, and evenly distributed is in the slip ring (8) outside, every the one end of fixed arm (501) is fixed with slip ring (8), and fixed arm (501) other end articulates there is swinging boom (502), fixed buffering arm (504) are passed through buffer spring (503) to swinging boom (502) other end.

9. The manual keying device for a rotor pole key of a hydroelectric generating set according to claim 8, characterized in that: the bottom end of the buffer arm (504) is hinged to a support plate (505), and a fixing hole is formed in the support plate (505).