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CN-224201059-U - Motion power transmission device of wind-shielding and anti-freezing cloth curtain of air cooling island

CN224201059UCN 224201059 UCN224201059 UCN 224201059UCN-224201059-U

Abstract

The motion power transmission device for the wind-shielding anti-freezing cloth curtains of the air cooling island solves the problem that the stroke end positions of all the anti-freezing cloth curtains are different when a plurality of sets of anti-freezing cloth curtains are driven by the same power and transmission mechanism. The device comprises a machine frame body, a steel wire rope driving roller, a steel wire rope driven wheel and a steel wire rope, wherein the steel wire rope driving roller and the steel wire rope driven wheel are arranged in parallel, and the steel wire rope is wound between the steel wire rope driving roller and the steel wire rope driven wheel in an 8-shaped manner to form axial progressive winding, an adhesion adjusting component for increasing and decreasing materials is arranged on the surface of a cylinder of the steel wire rope driving roller, and the component is strip-shaped and is arranged along the axis direction of the steel wire rope driving roller. If the stroke end positions of the plurality of anti-freezing cloth curtains are different and need to be treated, the change of the circumference of the steel wire rope driving roller can be completed by using the material adhesion increasing and decreasing adjusting component to be attached to the surface of the steel wire rope driving roller or removed, so that the stroke end positions of the anti-freezing cloth curtains fixed on the steel wire rope can be adjusted.

Inventors

  • ZHANG LEI
  • PENG YULIN

Assignees

  • 哈尔滨润河科技有限公司

Dates

Publication Date
20260505
Application Date
20250707

Claims (8)

  1. 1. The motion power transmission device of the wind shielding and anti-freezing cloth curtain of the air cooling island comprises a machine framework body (20), a steel wire rope driving roller (21B), a steel wire rope driven wheel (22) and a steel wire rope (23), wherein the steel wire rope driving roller (21B) and the steel wire rope driven wheel (22) are arranged in parallel, the steel wire rope (23) winds between the steel wire rope driving roller (21B) and the steel wire rope driven wheel (22) to form an axially progressive 8-shaped winding, the rotating shaft ends of the steel wire rope driving roller (21B) and the steel wire rope driven wheel (22) are arranged on the machine framework body (20) to form a running fit with the same, and the motion power transmission device is characterized in that an increase-decrease material adhesion adjusting part (100) is arranged on the cylinder surface of the steel wire rope driving roller (21B), and the increase-decrease material adhesion adjusting part (100) is strip-shaped and is arranged along the axis direction of the cylinder surface of the steel wire rope driving roller (21B).
  2. 2. The apparatus for driving a moving power of a wind shielding and anti-freezing cloth curtain for an air cooling island according to claim 1, wherein the material adhesion increasing/decreasing adjusting member (100) has the same shape on any cross section.
  3. 3. The motion power transmission device of the wind shielding and anti-freezing cloth curtain of the air cooling island is characterized in that a plurality of rope grooves (24) are arranged in a steel wire rope driven wheel (22).
  4. 4. The motion power transmission device for the wind shielding and anti-freezing cloth curtain of the air cooling island according to claim 1, 2 or 3 is characterized in that the cross section of the material increasing and decreasing attachment adjusting component (100) is rectangular, threaded through holes (100-1) are formed between the upper surface and the lower surface of the material increasing and decreasing attachment adjusting component (100) in a penetrating manner, at least two threaded through holes (100-1) are formed at two end parts in the length direction of the material increasing and decreasing attachment adjusting component (100), threaded bottom holes (100-2) are formed at corresponding positions on the surface of the steel wire rope driving roller (21B), and countersunk screws (100-3) penetrate through the threaded through holes (100-1) and the threaded bottom holes (100-2) to fix the material increasing and decreasing attachment adjusting component (100) on the steel wire rope driving roller (21B).
  5. 5. The motion power transmission device of the wind shielding and anti-freezing cloth curtain of the air cooling island according to claim 1, 2 or 3, wherein the material adding and reducing attachment adjusting component (100) is fixed on the surface of the steel wire rope driving roller (21B) by adopting a welding mode, and the attached material adding and reducing attachment adjusting component (100) is removed by adopting a cutting mode.
  6. 6. The motion power transmission device for the air cooling island wind shielding and anti-freezing cloth curtain according to claim 1, wherein the cross section of the material adhesion increasing and decreasing adjusting part (100) is circular.
  7. 7. The motion power transmission device of the air cooling island wind shielding and anti-freezing cloth curtain according to claim 1, wherein the cross section of the material adhesion increasing and decreasing adjusting component (100) is trapezoid.
  8. 8. The motion power transmission device of the wind shielding and anti-freezing cloth curtain of the air cooling island is characterized in that a wire rope lifting guide wheel (30) is coaxially arranged with a wire rope driven wheel (22), a wire rope (23) is wound on the upper half edge of the wire rope lifting guide wheel (30) and then wound from the upper half edge of a wire rope driving roller (21B) to the lower half edge of the wire rope driving roller, and finally the wire rope driven wheel (22) is wound back.

Description

Motion power transmission device of wind-shielding and anti-freezing cloth curtain of air cooling island Technical Field The utility model relates to an air cooling island wind shielding anti-freezing cloth curtain transmission mechanism of a thermal generator set. Background In the north, the coal-fired generating unit adopts an air cooling island to cool the exhaust gas of the steam turbine. When the temperature is low in winter, in order to avoid freezing and tube bundle frost cracking in the condenser heat dissipation tube bundle, a warm keeping mode is adopted, an anti-freezing cloth curtain capable of controlling opening and closing of the fan is arranged at the inlet of the fan, and the inlet of the fan is fully covered or the opening of the fan is controlled as required. Patent application publication No. CN210892851U discloses a power transmission device of an automatic wind shielding and anti-freezing system of an air cooling island. As shown in fig. 1 to 5, the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22 of the patent are provided with a plurality of rope grooves 24, the steel wire rope 23 is assembled to the steel wire rope driving wheel 21 by the steel wire rope driven wheel 22 in a penetrating way, diagonally connected, wound in an 8-shaped line, and connected to the guide wheel after being wound for a plurality of circles. The structure that wire rope "8 word" twines in the rope groove has solved wire rope and has slipped and the risk that cross frame play can appear between the wire rope, has improved wire rope transmission's reliability. The patent application publication No. CN 115853982A discloses a power transmission mechanism of an air cooling island wind shielding curtain device, which simplifies the structure of a steel wire rope driven wheel, removes the structure of a rope groove on the steel wire rope driven wheel and also solves the problems of steel wire rope slipping and cross-frame striking between steel wire ropes. However, as shown in fig. 1, the problem with the prior art is that the diameter of the fan opening 3 is about 10 meters, three or more parallel and independent curtains are required to cover the fan opening 3, two sides are provided with curtains with large width, the middle is provided with curtains with small width, and the strokes of the large curtains and the small curtains are not generally long. And the inconsistent travel causes another problem, namely, when one set of power mechanism 1 and transmission mechanism 2 are used for driving three sets of anti-freezing cloth curtains, the distances between the three sets of anti-freezing cloth curtains and the edges of the inlet of the fan are inconsistent when the three sets of anti-freezing cloth curtains reach the end point, namely, seam gaps are inconsistent. Although the inconsistency of the movement stroke of each curtain can be reduced by changing the design size ratio between the steel wire rope driving wheel 21 and the steel wire rope driven wheel 22, errors of the design size and the actual working occasions still exist, the end position of each curtain always has an error in precision on the installation site of equipment, the error can reach about 100 mm, and gaps generated by inconsistent distances between the three sets of antifreezing curtains and the edges of the inlet of the fan can affect the antifreezing control effect. Disclosure of utility model The utility model aims to provide a motion power transmission device of an air cooling island wind shielding anti-freezing cloth curtain, which aims to solve the problem that when a plurality of sets of anti-freezing cloth curtains are driven to move by using the same power mechanism and transmission mechanism, the stroke end positions of the anti-freezing cloth curtains are different. The steel wire rope driving roller 21B and the steel wire rope driven roller 22 are arranged in parallel, the steel wire rope 23 is wound around the steel wire rope driving roller 21B and the steel wire rope driven roller 22 to form an axially progressive 8-shaped winding, the rotating shaft ends of the steel wire rope driving roller 21B and the steel wire rope driven roller 22 are arranged on the mechanism frame 20 to form a rotating fit with the mechanism frame 20, an increase-decrease material adhesion adjusting part 100 is arranged on the cylinder surface of the steel wire rope driving roller 21B, and the increase-decrease material adhesion adjusting part 100 is strip-shaped and is arranged along the cylinder surface axial direction of the steel wire rope driving roller 21B. So set up, if the stroke end position that appears a plurality of anti-icing cloth curtains is different and need to handle, use increase and decrease material to adhere to the adjustment part 100 and adhere to the surface of wire rope initiative cylinder 21B, or change or remove from the state that has originally attached, just can accomplish the change of wire rope