CN108079602B

CN108079602B - Single-point crane system with pulley protection function

Info

Publication number: CN108079602B
Application number: CN201711109872.1A
Authority: CN
Inventors: 陈祖尧; 佟兴; 曹伟生
Original assignee: Wuhu Fantawild Culture Tech Inc
Current assignee: Wuhu Fantawild Culture Tech Inc
Priority date: 2017-11-11
Filing date: 2017-11-11
Publication date: 2020-09-15
Anticipated expiration: 2037-11-11
Also published as: CN108079602A

Abstract

The invention relates to a single-point hoisting system with a pulley protection function, which comprises a top mounting plate, a traction system and a pulley guide system, wherein the traction system comprises a driving motor, a winding drum and a steel wire rope; the pulley guide system comprises a side plate, a long shaft, a long pulley slidably mounted on the long shaft, a flywheel mechanism mounted on the long shaft and fixedly connected with the long pulley, and a guide block fixed on the side plate, wherein a conical cambered surface with gradually increasing radius is arranged on the guide block; the flywheel mechanism comprises a rotary disc, swinging blocks and springs, wherein the swinging blocks and the springs are hinged on the rotary disc and evenly distributed at intervals. The invention has simple structure and low manufacturing cost, can avoid abrasion to the same position of the pulley when the steel wire rope moves, realizes automatic replacement of the contact position of the pulley and the steel wire rope, does not need manual operation, is flexible and convenient to use, avoids breakage caused by damage of the pulley structure, prolongs the service life of the pulley, improves the safety of the whole system, greatly improves the safety of performers and reduces the maintenance cost of a theater.

Description

Single-point crane system with pulley protection function

Technical Field

The invention relates to the technical field of single-point cranes, in particular to a single-point crane system with a pulley protection function.

Background

During the performance of a theater or a stage, the hanging steel wire is matched with the performer to finish various beautiful actions, and the hanging steel wire is also called as a single-point hanging on the stage. Because the performer needs to go up and down to high altitude performance through wire rope, therefore the security that wire rope is fixed seems especially important, wire rope is usually guided by the pulley at the top of stage, when motor drive reel receive and releases wire rope, the effort to the pulley is big, the recess at traditional pulley middle part is closely connected with the rope, long-term work can seriously abrade the same position of pulley, damage pulley structure finally leads to the pulley fracture, bring serious potential safety hazard for the performer, especially when wire rope speed is too fast, the bearing capacity aggravation of pulley, the pulley life-span shortens, frequent change the pulley has also greatly increased the cost of maintenance in theater.

Disclosure of Invention

In order to avoid and solve the technical problem, the invention provides a single-point hoisting system with a pulley protection function.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the utility model provides a single-point hangs system that possesses pulley guard action, includes the top mounting panel, be fixed with traction system in the installation of top, traction system's left side is fixed with pulley guide system, traction system includes the reel that links to each other driving motor, links to each other with driving motor with the top mounting panel, wire rope around the dress on the reel, pulley guide system is including fixing curb plate at both ends around the top mounting panel, long axis, the slidable mounting on the long axis of connection on the curb plate, install on the long axis and with the flywheel mechanism that long pulley linked firmly, fix the guide block on the curb plate that is close to flywheel mechanism one side, be equipped with on the guide block and support the toper cambered surface that closes and the radius crescent with flywheel mechanism.

The flywheel mechanism comprises a rotary table, a plurality of swinging blocks which are hinged on the outer circular surface of the rotary table and evenly distributed at intervals, and a spring of which one end is connected with the rotary table and the other end is connected with the swinging blocks.

As a further development of the invention, a plurality of rope grooves are arranged in rows on the pulley.

The invention has the beneficial effects that:

the invention has simple structure and low manufacturing cost, can avoid abrasion to the same position of the pulley when the steel wire rope moves, realizes automatic replacement of the contact position of the pulley and the steel wire rope, does not need manual operation, is flexible and convenient to use, avoids breakage caused by damage of the pulley structure, prolongs the service life of the pulley, improves the safety of the whole system, greatly improves the safety of performers and reduces the maintenance cost of a theater.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a top view of the sheave guide system of the present invention;

fig. 4 is a sectional view taken along line a-a of fig. 3.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.

As shown in fig. 1 to 4, a single-point crane system who possesses pulley guard action, including top mounting panel 1, be fixed with traction system on the top mounting panel 1, traction system's left side is fixed with pulley guide system, traction system includes drive motor 2, the reel 3 that links to each other with drive motor 2, wire rope 4 of winding dress on reel 3 that links to each other with top mounting panel 1, pulley guide system is including fixing curb plate 5 at both ends around top mounting panel 1, connecting major axis 6, slidable mounting on curb plate 5 long pulley 7, installing on major axis 6 and flywheel mechanism 8 that links firmly with long pulley 7, fixing the guide block 9 on the curb plate 5 that is close to flywheel mechanism 8 one side, be equipped with on the guide block 9 and lean on with flywheel mechanism 8 and the toper cambered surface 9a of radius crescent.

The flywheel mechanism 8 comprises a rotary disc 81, a plurality of swinging blocks 82 which are hinged on the outer circular surface of the rotary disc 81 and are uniformly distributed at intervals, and a spring 83 of which one end is connected with the rotary disc 81 and the other end is connected with the swinging blocks 82.

A plurality of rope grooves 7a matched with the steel wire rope 4 are arranged on the pulley 7 in rows.

The method of use of the present invention is further illustrated below:

when the steel wire rope type centrifugal force swinging device is used, the steel wire rope 4 is fixed on a performer, when the steel wire rope 4 works at different speeds, acting forces generated on the surface of the long pulley 7 are different, abrasion on the long pulley 7 is different, when the speed is increased, the steel wire rope 4 drives the long pulley 7 to rotate at a high speed, the turntable 81 can drive the swinging block 82 to do centrifugal motion, the swinging block 82 is opened, and after the swinging block is contacted with the conical cambered surface 9a on the guide block 9, the swinging block can move along the direction gradually away from the guide block 9, so that the long pulley 7 is pushed to move on the long shaft 6, and the position of the steel wire rope 4 is relatively fixed, so that the contact position of the steel wire rope 4 and the long pulley 7 is changed, the friction.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a single-point hangs system that possesses pulley guard action, includes top mounting panel (1), be fixed with traction system on top mounting panel (1), traction system's left side is fixed with pulley guidance system, traction system includes driving motor (2) that links to each other with top mounting panel (1), reel (3) that link to each other with driving motor (2), wire rope (4) of winding dress on reel (3), its characterized in that: the pulley guide system comprises side plates (5) fixed at the front end and the rear end of a top mounting plate (1), a long shaft (6) connected to the side plates (5), a long pulley (7) slidably mounted on the long shaft (6), a flywheel mechanism (8) mounted on the long shaft (6) and fixedly connected with the long pulley (7), and a guide block (9) fixed on the side plate (5) close to one side of the flywheel mechanism (8), wherein a conical cambered surface (9a) which is abutted to the flywheel mechanism (8) and has a gradually increased radius is arranged on the guide block (9); the flywheel mechanism (8) comprises a turntable (81), a plurality of swinging blocks (82) which are hinged on the outer circular surface of the turntable (81) and are evenly distributed at intervals, and a spring (83) with one end connected with the turntable (81) and the other end connected with the swinging blocks (82), a plurality of rope grooves (7a) are arranged on the pulleys (7) in rows, a steel wire rope is fixed on a performer, when the steel wire rope works at different speeds, the acting force generated on the surface of the long pulley is different, the abrasion on the long pulley is different, when the speed is increased, the steel wire rope drives the long pulley to rotate at high speed, the turntable can drive the swinging blocks to do centrifugal motion, the swinging blocks are opened and can move along the guide blocks which are gradually far away from the guide blocks after being contacted with the conical cambered surfaces on the guide blocks, so that the long pulley is pushed to move on the long shaft, and the contact position of the steel wire, the friction of the long pulley is reduced, and the safety of the whole system is ensured.