CN221144679U

CN221144679U - Automatic braking device for locking impeller of wind generating set

Info

Publication number: CN221144679U
Application number: CN202322993549.2U
Authority: CN
Inventors: 刘刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-06
Filing date: 2023-11-06
Publication date: 2024-06-14
Anticipated expiration: 2033-11-06

Abstract

The utility model discloses an automatic braking device for locking an impeller of a wind generating set, and relates to the technical field of wind generators. According to the utility model, by adopting the structure, when the impeller locking pin is aligned with the impeller lock hole, the photoelectric switches are aligned with the reflecting plate, the two photoelectric switches are triggered simultaneously, the motor drives the screw to rotate at the moment, the locking pin on the surface of the screw slides in the chute, and when the locking pin on the second fixed block is inserted into the lock hole in the first fixed block, the impeller is locked, so that the automatic output of a brake signal when the impeller locking pin is aligned with the impeller lock hole can be realized without personnel operation, the impeller locking is convenient for personnel, and the locking is more accurate.

Description

Automatic braking device for locking impeller of wind generating set

Technical Field

The utility model belongs to the technical field of wind driven generators, and particularly relates to an automatic braking device for locking an impeller of a wind driven generator set.

Background

The wind generating set is a large-scale generating set which converts wind energy into electric energy through rotation of an impeller, in the process of installation, debugging and maintenance, in order to ensure the safety of operators and set equipment, the impeller is locked, so that the risk to the operators or the equipment damage caused by rotation of the impeller under the action of wind force is prevented, and the locking of the impeller usually adopts a locking pin mode.

The existing wind generating set impeller locking method is to align an impeller locking pin with an impeller lock hole by naked eye observation, then press a brake button to brake the impeller, then manually screw the impeller locking pin into the impeller lock hole to lock the impeller, and because the impeller is in a rotating state, the currently adopted impeller locking mode needs to press the brake button immediately when the impeller locking pin is observed to be aligned with the impeller lock hole, otherwise, the impeller can continue to rotate, the impeller locking pin cannot be aligned with the lock hole, and the positioning is not accurate enough.

Disclosure of utility model

Aiming at the problems in the background art, the utility model aims to provide an automatic brake device for locking an impeller of a wind generating set, so as to solve the problems that the currently adopted impeller locking mode needs to press a brake button immediately when an impeller locking pin is observed to be aligned to an impeller lock hole, otherwise, the impeller can continue to rotate, the impeller locking pin cannot be aligned to the lock hole, and the positioning is not accurate enough because the impeller is in a rotating state.

The technical aim of the utility model is realized by the following technical scheme:

The utility model provides an automatic brake device for locking of wind generating set impeller, includes the casing, one side of casing rotates and is connected with the impeller body, the surface fixedly connected with blade of impeller body, the inside fixedly connected with first fixed block of impeller body, the lockhole has been seted up to the inside of first fixed block, the equal fixedly connected with reflector panel in both sides that lie in the lockhole on the first fixed block, the inside fixedly connected with second fixed block of casing, one side fixedly connected with of second fixed block pushes away the round pin subassembly, one side of second fixed block is through pushing away round pin subassembly sliding connection with locking pin, locking pin and lockhole swing joint, the equal fixedly connected with photoelectric switch in both sides that lie in the locking pin on the second fixed block.

As the preferred technical scheme, the promotion pin assembly includes the spout, the inside at the second fixed block is seted up to the spout, the inside rotation of spout is connected with the screw rod, the one end fixedly connected with driving motor of screw rod, one side of driving motor and one side fixed connection of second fixed block, locking pin threaded connection is at the surface of screw rod, locking pin sliding connection is in the inside of spout.

As the preferable technical scheme, the limiting grooves are formed in the inner walls of the two sides of the sliding groove, limiting blocks are connected in a sliding mode in the limiting grooves, and one end of each limiting block is fixedly connected with one end of each locking pin.

As the preferable technical scheme, the inside of casing rotates and is connected with the axostylus axostyle, the inside fixedly connected with axle sleeve of impeller body, the axostylus axostyle passes through screw and axle sleeve fixed connection.

As the preferable technical scheme, one side of the shell is provided with a ring groove, the inside of the ring groove is connected with a ring block in a sliding way, and one end of the ring block is fixedly connected with one end of the impeller body.

As the preferable technical scheme, the locating slot has been seted up to the one end of locking pin, the inside of casing is located one side fixedly connected with locating piece of axle sleeve, locating piece and locating slot swing joint, locating piece and locating slot are rectangular structure.

In summary, the utility model has the following advantages:

According to the utility model, when the impeller locking pin is aligned with the impeller locking hole, the photoelectric switches are aligned with the reflecting plate, the two photoelectric switches are triggered simultaneously, the driving motor drives the screw to rotate at the moment, the locking pin on the surface of the screw slides in the sliding groove, and when the locking pin on the second fixed block is inserted into the locking hole in the first fixed block, the impeller is locked, so that the automatic output of a brake signal can be realized when the impeller locking pin is aligned with the impeller locking hole without personnel operation, the impeller locking is convenient for personnel, and the locking is more accurate;

in the second aspect of the utility model, after the locking pin is inserted into the locking hole, the positioning groove on one side of the locking pin is in contact with the positioning block in the impeller body, so that the locking effect of the locking pin inserted into the locking hole on the impeller is improved, and the locking work of the impeller is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the housing of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic view of the positioning block structure of the impeller body of the present utility model;

FIG. 5 is a schematic view of a second fixed block structure in the impeller body of the present utility model;

Fig. 6 is a schematic view of the modular structure of the present utility model.

Reference numerals: 1. a housing; 2. an impeller body; 3. a blade; 4. a first fixed block; 5. a lock hole; 6. a light reflecting plate; 7. a second fixed block; 8. a locking pin; 9. a push pin assembly; 91. a driving motor; 92. a screw; 93. a chute; 10. a limit groove; 11. a limiting block; 12. an optoelectronic switch; 13. a shaft lever; 14. a shaft sleeve; 15. a ring groove; 16. a ring block; 17. a positioning groove; 18. and (5) positioning blocks.

Detailed Description

Examples

Referring to fig. 1 to 6, an automatic brake device for locking an impeller of a wind generating set according to the present embodiment includes a housing 1, one side of the housing 1 is rotatably connected with an impeller body 2, an outer surface of the impeller body 2 is fixedly connected with a blade 3, a first fixing block 4 is fixedly connected with an inner portion of the impeller body 2, a lock hole 5 is formed in the first fixing block 4, light reflecting plates 6 are fixedly connected to two sides of the first fixing block 4, a second fixing block 7 is fixedly connected to the inner portion of the housing 1, a push pin assembly 9 is fixedly connected to one side of the second fixing block 7, a locking pin 8 is slidably connected to one side of the second fixing block 7 through the push pin assembly 9, the locking pin 8 is movably connected with the lock hole 5, photoelectric switches 12 are fixedly connected to two sides of the locking pin 8 on the second fixing block 7, and each photoelectric switch 12 is composed of a light switch B1 and a light switch B2; it should be noted that, the electric box is installed in the casing 1, the electric box includes switches F1, F2, a switch power supply G1, knob switches S1, S2, indicator lamps H1, H2, relays K1, K2, K3, and the electric box is electrically connected with the generator set controller, the circuit connection structure is the prior art means, the photoelectric switch 12 is electrically connected with the relay, the switch F1 is used for controlling the power supply of the switch power supply G1, the switch power supply G1 is used for converting 230V ac into 24V dc, the switch F2 is used for controlling the power supply of the 24V loop, S1 is a two-gear knob switch, the knob switch is used for switching the manual/automatic state, when the S1 knob is switched to the automatic state, the impeller automatic locking function of the device is started, since the photoelectric switch 12 is installed at both sides of the impeller locking pin 8, the reflecting plate 6 is installed at both sides of the impeller locking hole 5, when the impeller locking pin 8 is aligned with the impeller locking hole 5, the optical switches B1 and B2 are triggered simultaneously, 24V signals are triggered and output, the K1 relay coil is electrified, then the K1 relay normally open auxiliary contact is closed, the indicator lamp H1 is lighted after the normally open auxiliary contact is closed, when the optical switch B2 is triggered, the K2 relay coil is electrified, then the K1 relay normally open auxiliary contact is closed, the indicator lamp H2 is lighted after the normally open auxiliary contact is closed, when the K1 relay normally open auxiliary contact and the K2 relay normally open auxiliary contact are closed simultaneously, the K3 relay coil is electrified, the K3 relay normally open auxiliary contact is closed, the K3 relay normally open contact and the coil are self-locked, a brake signal is transmitted into a controller of a wind generating set after the normally open auxiliary contact is closed, the controller controls a driving motor, and automatic braking when the impeller locking pin 8 is aligned with the impeller locking hole 5 can be realized, the opto-electronic switch 12 may be replaced by a proximity switch.

Referring to fig. 3, the push pin assembly 9 includes a sliding groove 93, the sliding groove 93 is formed in the second fixed block 7, a screw 92 is rotatably connected in the sliding groove 93, one end of the screw 92 is fixedly connected with a driving motor 91, one side of the driving motor 91 is fixedly connected with one side of the second fixed block 7, a locking pin 8 is in threaded connection with the outer surface of the screw 92, and the locking pin 8 is in sliding connection in the sliding groove 93; through setting up the pin pushing subassembly 9, driving motor 91 makes screw 92 rotate in spout 93, and locking pin 8 and screw 92 screw thread and with spout 93 slip, can realize that locking pin 8 removes, locking pin 8 inserts lockhole 5 can lock the impeller, the staff of being convenient for maintains and maintains.

Referring to fig. 2-3, limit grooves 10 are formed in the inner walls of two sides of a sliding groove 93, a limit block 11 is slidably connected in the limit groove 10, and one end of the limit block 11 is fixedly connected with one end of a locking pin 8; through installing stopper 11 in locking pin 8 both sides, stopper 11 slides in spacing groove 10, and locking pin 8 removes more fluently stable.

Referring to fig. 3 to 4, a shaft lever 13 is rotatably connected to the inside of the casing 1, a shaft sleeve 14 is fixedly connected to the inside of the impeller body 2, and the shaft lever 13 is fixedly connected with the shaft sleeve 14 by a screw; by providing the shaft 13 and the sleeve 14, the impeller body 2 can be connected to the casing 1.

Referring to fig. 3 and 4, a ring groove 15 is formed on one side of the casing 1, a ring block 16 is slidably connected in the ring groove 15, and one end of the ring block 16 is fixedly connected with one end of the impeller body 2; by arranging the ring block 16 and the ring groove 15, the impeller body 2 can conveniently rotate on the shell 1.

Referring to fig. 3 and 4, a positioning groove 17 is formed in one end of the locking pin 8, a positioning block 18 is fixedly connected to one side of the shaft sleeve 14 inside the shell 1, the positioning block 18 is movably connected with the positioning groove 17, and the positioning block 18 and the positioning groove 17 are of a rectangular structure; the rectangular positioning block 18 is inserted into the rectangular positioning groove 17, so that the rotation of the impeller body 2 is further limited.

The use principle and the advantages are that: when the impeller locking pin 8 is aligned with the impeller locking hole 5, the light switches B1 and B2 are simultaneously triggered by aligning with the reflector 6, the coil of the K1 relay is electrified, then the normally open auxiliary contact of the K1 relay is closed, the indicator lamp H1 is lighted after the normally open auxiliary contact is closed, the coil of the K2 relay is electrified, then the normally open auxiliary contact of the K1 relay is closed, the indicator lamp H2 is lighted after the normally open auxiliary contact of the K1 relay is closed, when the normally open auxiliary contact of the K1 relay and the normally open auxiliary contact of the K2 relay are simultaneously closed, the coil of the K3 relay is electrified, the normally open auxiliary contact of the K3 relay is closed, the normally open contact of the K3 relay is self-locked with the coil, a brake signal is transmitted into a controller of a wind generating set after the normally open auxiliary contact is closed, the controller controls the driving motor to drive the screw 92 to rotate, the locking pin 8 on the surface of the screw 92 slides in the chute 93, when the locking pin 8 on the second fixed block 7 is inserted into the lock hole 5 in the first fixed block 4, the impeller is locked, therefore, automatic output of a brake signal can be realized when the impeller locking pin 8 is aligned with the impeller lock hole 5 without personnel operation, the impeller locking is convenient for personnel, the locking is more accurate, after the locking pin 8 is inserted into the lock hole 5, the positioning groove 17 on one side of the locking pin 8 is in contact with the positioning block 18 in the impeller body 2 at the moment, the locking effect of the locking pin 8 inserted into the lock hole 5 on the impeller is improved, and the guarantee is provided for the impeller locking work.

Claims

1. An automatic braking device for locking an impeller of a wind generating set, which comprises a shell (1) and is characterized in that: one side of casing (1) rotates and is connected with impeller body (2), the surface fixedly connected with blade (3) of impeller body (2), the inside fixedly connected with first fixed block (4) of impeller body (2), lockhole (5) have been seted up to the inside of first fixed block (4), the equal fixedly connected with reflector panel (6) in both sides of lockhole (5) on first fixed block (4), the inside fixedly connected with second fixed block (7) of casing (1), one side fixedly connected with push pin subassembly (9) of second fixed block (7), one side of second fixed block (7) is through push pin subassembly (9) sliding connection have locking pin (8), locking pin (8) and lockhole (5) swing joint, the equal fixedly connected with photoelectric switch (12) in both sides that are located locking pin (8) on second fixed block (7).

2. An automatic braking device for locking the impeller of a wind generating set according to claim 1, wherein: the push pin assembly (9) comprises a sliding groove (93), the sliding groove (93) is formed in the second fixed block (7), a screw rod (92) is connected to the sliding groove (93) in a rotating mode, a driving motor (91) is fixedly connected to one end of the screw rod (92), one side of the driving motor (91) is fixedly connected with one side of the second fixed block (7), a locking pin (8) is in threaded connection with the outer surface of the screw rod (92), and the locking pin (8) is in sliding connection with the sliding groove (93).

3. An automatic braking device for locking the impeller of a wind generating set according to claim 2, characterized in that: limiting grooves (10) are formed in the inner walls of two sides of the sliding groove (93), limiting blocks (11) are connected inside the limiting grooves (10) in a sliding mode, and one end of each limiting block (11) is fixedly connected with one end of each locking pin (8).

4. An automatic braking device for locking the impeller of a wind generating set according to claim 1, wherein: the inside rotation of casing (1) is connected with axostylus axostyle (13), the inside fixedly connected with axle sleeve (14) of impeller body (2), axostylus axostyle (13) pass through screw and axle sleeve (14) fixed connection.

5. An automatic braking device for locking the impeller of a wind generating set according to claim 1, wherein: an annular groove (15) is formed in one side of the shell (1), an annular block (16) is connected inside the annular groove (15) in a sliding mode, and one end of the annular block (16) is fixedly connected with one end of the impeller body (2).

6. An automatic brake apparatus for locking an impeller of a wind turbine according to claim 4, wherein: the locking device is characterized in that a positioning groove (17) is formed in one end of the locking pin (8), a positioning block (18) is fixedly connected to one side, located in the shaft sleeve (14), of the shell (1), the positioning block (18) is movably connected with the positioning groove (17), and the positioning block (18) and the positioning groove (17) are of rectangular structures.