CN210892851U - Power transmission device of automatic wind shielding and freeze preventing system of air cooling island - Google Patents
Power transmission device of automatic wind shielding and freeze preventing system of air cooling island Download PDFInfo
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- CN210892851U CN210892851U CN201921940566.7U CN201921940566U CN210892851U CN 210892851 U CN210892851 U CN 210892851U CN 201921940566 U CN201921940566 U CN 201921940566U CN 210892851 U CN210892851 U CN 210892851U
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- wire rope
- air cooling
- wheel
- cooling island
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Abstract
The utility model discloses an automatic power transmission who keeps out wind frostproofing system in air cooling island, it includes power unit and a plurality of drive mechanism that link to each other with power unit, power unit includes gear motor and the transfer line that links to each other with gear motor, every drive mechanism includes the wire rope action wheel, wire rope follows the driving wheel, the transmission support, the leading wheel and set up at the wire rope action wheel, wire rope follows the wire rope between driving wheel and the leading wheel, wire rope alternates the assembly at wire rope action wheel and wire rope from between the driving wheel, wire rope action wheel and wire rope follow the rotatable setting of driving wheel on the transmission support, the wire rope action wheel passes through the transfer line and links to each other with gear motor, wire rope action wheel and wire rope all are equipped with several grooving from the driving. The utility model discloses an automatic power transmission who keeps out wind anti-freezing system in air cooling island, frictional force just can not produce axial displacement greatly, has improved power transmission's reliability greatly.
Description
Technical Field
The utility model relates to an electric power industry steam turbine cooling auxiliary assembly technical field, in particular to automatic power transmission who keeps out wind anti-freezing system in air cooling island.
Background
In the north, some coal-fired power generating units adopt an air cooling island to cool the exhaust of a steam turbine. When the temperature is low in winter, freezing and tube bundle frost cracking phenomena occur inside the condenser heat dissipation tube bundle. The existing main precautionary measures are to adopt a manual warm-keeping mode, and the problems of poor operability and unsafe high-altitude operation exist because cotton quilts are arranged on the tube bundles or tarpaulins are used for covering the inlet of the fan; and an anti-freezing device is arranged at a fan port, and the conventional automatic wind shielding and anti-freezing system for the air cooling island uses a single steel pipe type roller to perform steel wire rope transmission, such as a patent with the number of CN 204115505U, the steel wire rope roller needs to make axial displacement while rotating, and the axial movement uses bolt and nut transmission. The steel pipe type roller is not provided with a rope groove, the roller and the steel wire rope are in line contact transmission, the friction force is insufficient, and the roller is easy to slip when rotating; meanwhile, axial displacement exists between the steel wire ropes and the roller, the risk of cross racking between the steel wire ropes can occur, and the transmission reliability of the steel wire ropes is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the above-mentioned defect among the prior art, provide an automatic power transmission who keeps out wind anti-freezing system in air cooling island, frictional force is big and can not produce axial displacement, has improved power transmission's reliability greatly.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides an automatic power transmission who keeps out wind frostproofing system in air cooling island, its include power unit and with a plurality of drive mechanism that power unit links to each other, power unit include gear motor and with the transfer line that gear motor links to each other, its characterized in that: every drive mechanism includes that wire rope action wheel, wire rope follow driving wheel, transmission support, leading wheel and setting are in wire rope action wheel, wire rope follow driving wheel and the wire rope between the leading wheel, wire rope alternates the assembly and is in wire rope action wheel and wire rope follow driving wheel between, wire rope action wheel and wire rope follow the rotatable setting of driving wheel are in on the transmission support, the wire rope action wheel passes through the transfer line with gear motor links to each other, wire rope action wheel and wire rope follow driving wheel in all be equipped with several grooving, wire rope twine in the grooving.
Furthermore, the utility model discloses still include following subsidiary technical scheme:
the transmission support comprises a support seat, a driven rotating shaft which is rotatably arranged in the support seat and a limiting nut which is arranged on the driven rotating shaft, and the steel wire rope driven wheel is fixedly arranged on the driven rotating shaft; the transmission support further comprises a driving rotating shaft which is rotatably arranged in the support seat, and the steel wire rope driving wheel is fixedly arranged on the driving rotating shaft.
The speed reducing motor comprises a speed reducer output shaft, and the transmission rods are symmetrically arranged on two sides of the speed reducing motor.
The transmission rod comprises a transmission block connected with the output shaft of the speed reducer, a first transmission rod connected with the transmission block, a second transmission rod connected with the first transmission rod and a third transmission rod connected with the second transmission rod.
The first transmission rod and the second transmission rod and the third transmission rod are connected through the driving rotating shaft, and the other end of the third transmission rod is connected with the driving rotating shaft.
The steel wire rope is diagonally connected between the steel wire rope driving wheel and the steel wire rope driven wheel.
The automatic wind-shielding anti-freezing system for the air cooling island comprises a plurality of tensioning adjusting devices, and the guide wheels are installed in the tensioning adjusting devices.
Each tensioning adjusting device comprises a guide support, a tensioning mechanism and an adjusting screw rod (53) arranged in the tensioning mechanism in a penetrating mode, and the tensioning mechanism is installed to the guide support through the adjusting screw rod 53.
The air cooling island comprises a fan port, and the automatic wind and freeze preventing system of the air cooling island comprises a plurality of track devices arranged on the fan port.
The automatic wind shielding and freeze preventing system for the air cooling island further comprises a plurality of wind shielding curtain devices arranged in the rail device, and the wind shielding curtain devices are installed on the steel wire rope.
Compared with the prior art, the utility model discloses the advantage lies in:
(1) the transmission mechanism adopts the steel wire rope driving wheel and the steel wire rope driven wheel which are fixed at one position, axial movement cannot be generated, the risk of cross racking between the steel wire ropes is avoided, a plurality of rope grooves are formed in the steel wire rope driving wheel and the steel wire rope, the steel wire rope can obtain enough friction force through the rope grooves to drive the wind shielding cloth curtain device, and the reliability is higher.
(2) Compared with the screw transmission, the bearing transmission is more scientific, almost no abrasion is generated, and the service life is longer.
Drawings
FIG. 1 is a schematic structural view of the power transmission device of the automatic wind shielding and freeze preventing system of the air cooling island
Fig. 2 is a schematic perspective view of the transmission mechanism of the present invention.
Fig. 3 is a side view of the transmission mechanism of the present invention.
Fig. 4 is a top view of the transmission mechanism of the present invention.
Fig. 5 is a schematic perspective view of the middle guide device of the present invention.
Fig. 6 is a schematic structural diagram of one side of the power mechanism of the present invention.
Fig. 7 is a top view of the automatic anti-freezing system that keeps out wind of the hollow cold island of the utility model.
The reference numerals are explained below:
1. a power mechanism; 2. a transmission mechanism; 3. a fan port; 4. a rail device; 5. a tension adjustment device; 6. a wind screen cloth curtain device; 11. a reduction motor; 12. a transmission block; 13. a first drive lever; 14. a second transmission rod; 15. a third transmission rod; 16. an output shaft of the reducer; 17. a speed reducer bracket; 21. a steel wire rope driving wheel; 22. a steel wire rope driven wheel; 23. a wire rope; 24. rope grooves; 25. a transmission bracket; 26. a guide wheel; 51. a guide bracket; 52. a tensioning mechanism; 53. adjusting the screw rod; 251. a support base; 252. a driven rotating shaft; 253. a limit nut; 254. a driving rotating shaft; 255. supporting by square steel;
Detailed Description
The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.
As shown in fig. 1 to 7, the power transmission device of the automatic wind-shielding and freeze-proofing system of the air cooling island according to the preferred embodiment of the present invention includes a plurality of track devices 4, a plurality of power transmission devices, a plurality of tensioning adjustment devices 5, and a plurality of wind-shielding curtain-laying devices 6, wherein each power transmission device includes a power mechanism 1 and a transmission mechanism 2 connected to the power mechanism, and the transmission mechanism 2 is disposed between the power mechanism 1 and the tensioning adjustment device 5. The wind-shielding cloth curtain device 6 is arranged in the track device 4 and is arranged on the transmission mechanism 2, and the wind-shielding cloth curtain device 6 acts on the transmission mechanism 2 through the power mechanism 1 to be pulled to be opened and closed, so that the functions of wind shielding and freeze prevention are realized.
The automatic wind-shielding anti-freezing device for the air cooling island comprises 6 track devices 4, three groups of track devices are arranged on a fan port 3 in parallel side by side, wherein the two groups of track devices 4 are arranged on two sides of a maintenance bridge of the fan port 3, and the other group of track devices 4 are arranged in the middle of the maintenance bridge of the fan port 3.
The power mechanism 1 comprises a speed reducing motor 11 and transmission rods connected to two sides of the speed reducing motor 11, and the speed reducing motor 11 is installed on the fan maintenance platform through a speed reducing machine support 17. The transmission rods are symmetrically arranged by taking the speed reducing motor 11 as a center, and a structure of the transmission rod on one side is specifically explained below. The speed reducing motor 11 comprises a speed reducer output shaft 16, and the transmission rod comprises a transmission block 12 connected with the speed reducer output shaft 16, a first transmission rod 13 connected with the transmission block 12, a second transmission rod 14 connected with the first transmission rod 13 and a third transmission rod 15 connected with the second transmission rod 14. The first transmission rod 13 and the second transmission rod 14 and the third transmission rod 15 are connected through a driving rotating shaft 254, and the other end of the third transmission rod 15 is also connected with the driving rotating shaft 254. The active shaft 254 is mounted in the holder base 251 and is connected to the service platform by a square steel support 255.
The transmission mechanism 2 comprises a steel wire rope driving wheel 21, a steel wire rope driven wheel 22, a guide wheel 26 and a steel wire rope 23 arranged between the steel wire rope driven wheel 22 and the guide wheel 26, the steel wire rope 23 is inserted between the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22, and the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22 are rotatably arranged on the driven transmission support 25. The transmission support 25 comprises support seats 251, a driving rotating shaft 254 and a driven rotating shaft 252 which are rotatably arranged between the support seats 251, and a limiting nut 253 arranged on the driven rotating shaft 252, wherein the steel wire rope driven wheel 22 is fixedly arranged on the driven rotating shaft 252, the steel wire rope driving wheel 21 is fixedly arranged on the driving rotating shaft (254), the driven rotating shaft 252 is fixed between the support baffles 251 by the limiting nut 253, axial displacement cannot occur, and the steel wire rope driven wheel 22 can rotate together with the driven rotating shaft 252. The wire rope driving wheel 21, the driven wheel 22 and the guide wheel 26 are respectively arranged at two sides of the track device 4. The steel wire rope driving wheel 21 and the steel wire rope driven wheel 22 are internally provided with a plurality of rope grooves 24, the diameter of each rope groove 24 is the same as that of the steel wire rope 23, the steel wire rope 23 is inserted into the steel wire rope driving wheel 21 from the steel wire rope driven wheel 22, the steel wire rope is diagonally connected and wound in a line of 8, the steel wire rope is connected to the guide wheel 26 after being wound for a plurality of circles, and two steel wire rope heads are connected in the middle.
Two sets of transmission mechanisms 2 on the transmission rod of the power mechanism 1 are respectively arranged in one group, and two sets of transmission mechanisms 2 on two sides of the maintenance bridge are respectively and correspondingly arranged on one group of track devices 4 on two sides of the maintenance bridge of the fan port 3. Two sets of transmission mechanisms 2 are connected with first transmission rods 13 on two sides of the power mechanism 1, and the two sets of transmission mechanisms 2 are correspondingly arranged on a group of track devices 4 in the middle of an overhaul bridge of the fan port 3.
The guide wheel 26 is installed in the tensioning adjusting device 5, the tensioning adjusting device 5 comprises a guide support 51, a tensioning mechanism 52 and an adjusting screw 53 penetrating through the tensioning mechanism 52, the tensioning mechanism 52 is installed on the guide support 51 through the adjusting screw 53, the guide wheel 26 is installed on the fan maintenance platform through the guide support 51, the guide wheel 26 is installed in a sliding chute of the tensioning mechanism 52, tensioning operation is carried out through the adjusting screw 53, the pulling force between the transmission mechanism 2 and the wind shielding cloth curtain device 6 can be effectively controlled, and the wind shielding cloth curtain device 6 is prevented from being torn by overlarge force; or the wind screen cloth curtain device 6 is not flat due to too small force.
Two sets of wind shielding cloth curtain devices 6 are arranged on each set of track device 4, and the middle positions of the two sets of wind shielding cloth curtain devices 6 are fixed on the steel wire rope 23 in a flush mode through connecting pieces.
When the system is used in severe cold winter, the speed reduction motor 11 is controlled to drive the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22 to rotate, the steel wire rope 23 supplies enough friction force through the rope grooves 24 in the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22, so that the steel wire rope 23 drives the wind shielding curtain distributing device 6 to be folded towards the middle or opened towards two sides, and the wind motor port 3 is plugged or opened.
The utility model discloses a power transmission of automatic wind-screen antifreeze system of air cooling island adopts the wire rope action wheel and the wire rope driven wheel that fix in a position, can not produce axial displacement, has avoided the cross risk of fighting a shelf that probably appears between the wire rope, and sets up several rope grooves in wire rope action wheel and wire rope, and wire rope can obtain sufficient frictional force through the rope groove and drive the cloth curtain device that keeps out the wind, and the reliability is higher; compared with the screw transmission, the bearing transmission is more scientific, almost no abrasion is generated, and the service life is longer.
It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an automatic power transmission who keeps out wind frostproofing system in air cooling island, its include power unit (1) and with a plurality of drive mechanism (2) that power unit (1) links to each other, power unit (1) including gear motor (11) and with the transfer line that gear motor (11) link to each other, its characterized in that: every drive mechanism (2) includes wire rope action wheel (21), wire rope follow driving wheel (22), transmission support (25), leading wheel (26) and sets up wire rope (23) between wire rope action wheel (21), wire rope follow driving wheel (22) and leading wheel (26), wire rope (23) alternate the assembly and are in between wire rope action wheel (21) and the wire rope follow driving wheel (22), wire rope action wheel (21) and wire rope follow driving wheel (22) rotatable setting are in on transmission support (25), wire rope action wheel (21) pass through the transfer line with gear motor (11) link to each other, all be equipped with several grooving (24) in wire rope action wheel (21) and the wire rope follow driving wheel (22), wire rope (23) twine in grooving (24).
2. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 1, characterized in that: the transmission bracket (25) comprises a bracket seat (251), a driven rotating shaft (252) which is rotatably arranged in the bracket seat (251) and a limiting nut (253) which is arranged on the driven rotating shaft (252), and the steel wire rope driven wheel (22) is fixedly arranged on the driven rotating shaft (252); the transmission support (25) further comprises a driving rotating shaft (254) which is rotatably arranged in the support base (251), and the steel wire rope driving wheel (21) is fixedly arranged on the driving rotating shaft (254).
3. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 2, wherein: the speed reducing motor (11) comprises a speed reducer output shaft (16), and the transmission rods are symmetrically arranged on two sides of the speed reducing motor (11).
4. The power transmission device of the automatic wind-shielding anti-freezing system for the air cooling island according to claim 3, wherein: the transmission rod comprises a transmission block (12) connected with the output shaft (16) of the speed reducer, a first transmission rod (13) connected with the transmission block (12), a second transmission rod (14) connected with the first transmission rod (13) and a third transmission rod (15) connected with the second transmission rod (14).
5. The power transmission device of the automatic wind-shielding anti-freezing system for the air cooling island according to claim 4, wherein: the driving rotating shaft (254) is connected between the first driving rod (13) and the second driving rod (14) and between the second driving rod (14) and the third driving rod (15), and the other end of the third driving rod (15) is connected with the driving rotating shaft (254).
6. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 1, characterized in that: the steel wire rope (23) is diagonally connected between the steel wire rope driving wheel (21) and the steel wire rope driven wheel (22).
7. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 1, characterized in that: the automatic wind-shielding anti-freezing system for the air cooling island comprises a plurality of tensioning adjusting devices (5), and the guide wheels (26) are installed in the tensioning adjusting devices (5).
8. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 7, wherein: each tensioning adjusting device (5) comprises a guide support (51), a tensioning mechanism (52) and an adjusting screw rod (53) arranged in the tensioning mechanism (52) in a penetrating mode, and the tensioning mechanism (52) is installed on the guide support (51) through the adjusting screw rod (53).
9. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 1, characterized in that: the air cooling island comprises a fan port (3), and the automatic wind and freeze preventing system of the air cooling island comprises a plurality of track devices (4) arranged on the fan port (3).
10. The power transmission device of an automatic wind-shielding anti-freezing system for an air cooling island according to claim 9, wherein: the automatic wind-shielding and anti-freezing system for the air cooling island further comprises a plurality of wind-shielding curtain-laying devices (6) arranged in the rail device (4), and the wind-shielding curtain-laying devices (6) are arranged on the steel wire rope (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940566.7U CN210892851U (en) | 2019-11-12 | 2019-11-12 | Power transmission device of automatic wind shielding and freeze preventing system of air cooling island |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940566.7U CN210892851U (en) | 2019-11-12 | 2019-11-12 | Power transmission device of automatic wind shielding and freeze preventing system of air cooling island |
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| Publication Number | Publication Date |
|---|---|
| CN210892851U true CN210892851U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921940566.7U Active CN210892851U (en) | 2019-11-12 | 2019-11-12 | Power transmission device of automatic wind shielding and freeze preventing system of air cooling island |
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| Country | Link |
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| CN (1) | CN210892851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503962A (en) * | 2020-12-28 | 2021-03-16 | 陈定远 | Maintenance-free anti-freezing shielding curtain for air cooling island condenser tube bundle |
-
2019
- 2019-11-12 CN CN201921940566.7U patent/CN210892851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503962A (en) * | 2020-12-28 | 2021-03-16 | 陈定远 | Maintenance-free anti-freezing shielding curtain for air cooling island condenser tube bundle |
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