CN211283555U

CN211283555U - Hoisting machine

Info

Publication number: CN211283555U
Application number: CN201921310594.0U
Authority: CN
Inventors: 汪建生; 张扬
Original assignee: Zhejiang Dafeng Industry Co Ltd
Current assignee: Zhejiang Dafeng Industry Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-08-18
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a stage performance equipment field especially relates to the hoist engine. The winding machine comprises a base, a winding drum and a rope arranging device, wherein the winding drum is installed on the base, the rope arranging device is connected with the winding drum, the winding machine further comprises a locking device, one part of the locking device is installed on the winding drum, the other part of the locking device is installed on the base, and the locking device is used for locking the winding drum in a stop state of the winding machine. When the winding drum does not need to rotate continuously, the pawl assembly clamps the ratchet wheel, so that the ratchet wheel is prevented from rotating continuously, the winding drum is prevented from lifting excessively due to the inertia effect, and the influence on the normal lifting function is avoided.

Description

Hoisting machine

Technical Field

The utility model relates to a stage performance equipment field especially relates to the hoist engine.

Background

The hoist is the lifting device that performance venues such as theatre used extensively, is often used for hanging stage property, curtain, stereo set or actor. The winch generally comprises a rope arranging device and a winding drum, wherein the rope arranging device winds a steel wire rope into or out of the rotating winding drum to realize the lifting action of equipment such as props or curtains.

In the prior art, when the driving device stops working, the winding drum continues to rotate due to the inertia effect, so that the misoperation is caused, and the normal lifting function is influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, in order to solve above-mentioned technical problem, the utility model provides a hoist engine, technical scheme is as follows:

the winding machine comprises a base, a winding drum and a rope arranging device, wherein the winding drum is installed on the base, the rope arranging device is connected with the winding drum, the winding machine further comprises a locking device, one part of the locking device is installed on the winding drum, the other part of the locking device is installed on the base, and the locking device is used for locking the winding drum in a stop state of the winding machine.

It will be appreciated that when the spool does not need to continue to rotate, the locking device prevents the spool from continuing to rotate due to inertia to prevent the spool from continuing to wind the wire rope, thereby affecting normal lifting function.

In one embodiment, the locking device comprises a ratchet wheel and a pawl assembly, the ratchet wheel is fixedly connected with the winding drum, the pawl assembly is movably connected with the base, and the pawl assembly is used for clamping or releasing the ratchet wheel.

It will be appreciated that when the spool does not require further rotation, the pawl assembly catches the ratchet wheel, preventing further rotation of the ratchet wheel and thus preventing further rotation of the spool, and when the spool is operating normally, the pawl assembly releases the ratchet wheel.

In one embodiment, the pawl assembly comprises a magnetic part and a pawl, the magnetic part is fixed on the base, one end of the pawl is movably connected with the base, and the other end of the pawl is connected with the magnetic part.

It will be appreciated that the reel rotates by actuation of the magnetic member which controls the pawl to release the ratchet wheel.

In one embodiment, the pawl assembly further comprises an adaptor and an elastic member, one end of the elastic member is connected with the base, the other end of the elastic member is connected with one end of the pawl, and the pawl is movably connected with the base through the adaptor.

It will be appreciated that the magnetic member loses its magnetic properties and that the resilient member provides a resilient force to retain the ratchet wheel with the pawl after the pawl is released.

In one embodiment, the pawl assembly further comprises a connecting member, and the pawl and the magnetic member are connected through the connecting member.

It will be appreciated that the magnetic member engages the pawl and one end of the pawl moves the link member in a direction away from the ratchet wheel to release the ratchet wheel.

In one embodiment, the rope arranging device comprises a screw assembly and a rope arranging frame, one end of the screw assembly is connected with the rope arranging frame, the other end of the screw assembly is connected with the winding drum, and the screw assembly drives the rope arranging frame to move along the direction perpendicular to the axis of the winch.

It can be understood that the rope arranging frame is used for arranging the steel wire ropes, the steel wire ropes are used for hoisting equipment, and when the steel wire ropes need to be lifted, the steel wire ropes are wound into or wound out of the winding drum through the rope arranging frame.

In one embodiment, the screw assembly comprises a screw and a nut seat, the nut seat is sleeved on the screw and movably connected with the base, and the winding drum drives the nut seat to rotate; one end of the screw rod extends into the winding drum, and the other end of the screw rod is connected with the rope arranging frame.

It can be understood that the nut seat rotates along with the winding drum and is movably connected with the base, the nut seat rotates on the screw rod to enable the screw rod to move along the direction perpendicular to the axis of the winch, so that the rope guide is driven to move, the steel wire rope can be orderly wound in or wound out of the winding drum without overlapping, and disorder of the steel wire rope can be prevented.

In one embodiment, the winding machine further comprises a driving device, the driving device is arranged at one end of the winding drum far away from the screw rod assembly, and the driving device drives the winding drum to rotate.

In one embodiment, the winding drum is provided with rope grooves, and the rope grooves are spirally distributed along the direction perpendicular to the axis of the winch.

It will be appreciated that the rope grooves facilitate the winding of the steel wire rope.

In one embodiment, a protective cover is arranged at one end of the screw rod extending out of the winding drum, and the protective cover wraps the screw rod.

It will be appreciated that the protective cover prevents impurities from falling onto the threaded rod, thereby affecting the movement of the nut holder in cooperation with the threaded rod.

Compared with the prior art, the winch comprises the locking device, one part of the locking device is installed on the winding drum, the other part of the locking device is installed on the base, when the winding drum does not need to rotate continuously, the winding drum is locked to rotate through the locking device, the winding drum is prevented from continuously winding the steel wire rope, and therefore the influence on the normal lifting function is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a hoist according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a pawl assembly of a winch according to the present invention.

The symbols in the drawings represent the following meanings:

100. a winch; 101. an axis; 10. a base; 20. a reel; 21. rope end pressing plates; 22. rope grooves; 30. a rope arranging device; 31. a screw assembly; 311. a screw; 311a, a protective cover; 312. a nut seat; 32. A rope arranging frame; 321. a support; 322. a pulley; 40. a drive device; 41. a motor; 411. an output shaft; 50. A locking device; 51. a ratchet wheel; 52. a pawl assembly; 521. a magnetic member; 522. a pawl; 523. an adapter; 524. an elastic member; 525. a connecting member; 525a and a limiting block; 200. a steel cord.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the utility model provides a pair of hoist engine 100 for the jacking equipment in performance venues such as theatre, hoist engine 100 installs in the overhead or both sides of theatre etc. are special to be established hoist engine room (not shown), and hoist engine 100 utilizes wire rope 200 to hang stage property, curtain, stereo set or actor etc. of course, still can be applied to other occasions that need lift by crane, go up and down, also can install in different places as required.

Specifically, the winding engine 100 includes a base 10, a winding drum 20 and a rope guiding device 30, wherein the winding drum 20 is installed on the base 10, two ends of the rope guiding device 30 are connected with the winding drum 20, and the rope guiding device 30 is erected on the winding drum 20.

Further, be equipped with a plurality of fag end clamp plates 21 on the reel 20, a plurality of fag end clamp plates 21 are installed on the reel 20, and the one end that is close to the reel 20 on every fag end clamp plate 21 is equipped with a plurality of circular arc grooves (not shown), a plurality of circular arc grooves and wire rope 200 cooperation to make things convenient for wire rope 200 to go out the rope from different directions, in order to hoist equipment from a plurality of wire rope 200 simultaneously from different directions. In the present embodiment, the number of the string head pressing plates 21 is set to 5, but in other embodiments, the number may be set to another number according to different designs.

Preferably, the winding drum 20 is further provided with a rope groove 22, and the rope groove 22 is spirally distributed along a direction perpendicular to the axis 101 of the winding machine 100, so as to facilitate winding of the steel wire rope 200.

The rope guiding device 30 includes a screw assembly 31 and a rope guiding frame 32, one end of the screw assembly 31 is connected to the rope guiding frame 32, the other end is connected to the winding drum 20, and the screw assembly 31 drives the rope guiding frame 32 to move along the direction perpendicular to the axis 101 of the winding machine 100. The rope discharging rack 32 is used for arranging the steel wire rope 200, and when the lifting is needed, the steel wire rope 200 is wound in or wound out of the winding drum 20 through the rope discharging rack 32.

Further, the screw assembly 31 includes a screw 311 and a nut seat 312, the nut seat 312 is sleeved on the screw 311, and the nut seat 312 and the screw 311 are connected together through a thread. The nut seat 312 is fixed on the winding drum 20 and movably connected with the base 10, the winding drum 20 drives the nut seat 312 to rotate, one end of the screw 311 extends into the winding drum 20, and the other end is connected with the rope arranging frame 32. The nut seat 312 rotates on the screw 311 to move the screw 311 in a direction perpendicular to the axis 101 of the hoist 100, thereby driving the rope arranging frame 32 to move, so that the steel wire rope 200 can be orderly wound into the rope grooves without overlapping, and the disorder of the steel wire rope 200 can be prevented.

Preferably, a protective cover 311a is arranged at one end of the screw 311 extending out of the winding drum 20, the protective cover 311a is wrapped outside the screw 311, and the protective cover 311a is used for preventing impurities from falling onto the screw 311, so that the matching movement of the nut seat 312 and the screw 311 is influenced.

The rope arranging frame 32 is provided with a plurality of supports 321 and a plurality of groups of pulleys 322, the plurality of supports 321 are arranged between the base 10 and the rope arranging frame 32 and used for supporting the rope arranging frame 32, the two groups of pulleys 322 are a group, the plurality of pulleys 322 are movably connected with the rope arranging frame 32, and each steel wire rope 200 is arranged between the two pulleys 322 in a penetrating manner. The screw 311 drives the rope-arranging frame 32 to move, and then drives the pulley 322 to move, so as to drive the steel wire rope 200 to move, and further, ensure that the steel wire rope 200 is rolled in or out of the winding drum 20 without overlapping. The number of sheaves 322, and thus the number of sets of sheaves 322, required may be selected by selecting the number of wire ropes 200 required based on the weight and size of the lifting apparatus required. In this embodiment, the number of the brackets 321 is three, and the number of the pulleys 322 is five, however, in other embodiments, the number of the brackets 321 may be other, and the number of the groups of the pulleys 322 may be other.

With continued reference to fig. 1, the winding machine 100 further includes a driving device 40, the driving device 40 is installed at an end of the winding drum 20 far from the screw 311, and the driving device 40 drives the winding drum 20 to rotate. The driving device 40 includes a motor 41, an output shaft 411 is disposed at one end of the motor 41, the output shaft 411 is fixedly connected to one end of the winding drum 20, and the output shaft 411 drives the winding drum 20 to rotate. In this embodiment, the motor 41 is a speed reduction motor, which can control the hoisting speed of the steel cable 200, and of course, in other embodiments, other motors can be used.

The winding machine 100 further comprises a locking device 50, one part of the locking device 50 is installed on the winding drum 20, the other part is installed on the base 10, when the motor 41 stops operating, the locking device 50 locks the winding drum 20, the winding drum 20 is prevented from continuing rotating due to inertia, and therefore the normal lifting function of the winding machine 100 is prevented from being influenced.

Referring to fig. 2 and 3, the locking device 50 includes a ratchet 51 and a pawl assembly 52, the ratchet 51 is fixedly connected to the drum 20, the pawl assembly 52 is movably connected to the base 10, when the motor 41 stops operating, the pawl assembly 52 is clamped on a gear of the ratchet 51, thereby preventing the ratchet 51 from rotating continuously, and when the motor 41 operates normally, the pawl assembly 52 releases the ratchet 51.

Specifically, the pawl assembly 52 includes a magnetic member 521 and a pawl 522, the magnetic member 521 is fixed on the base 10, one end of the pawl 522 is movably connected to the base 10, and the other end of the pawl 522 is connected to the magnetic member 521, when the motor 41 normally operates, the magnetic member 521 generates a magnetic field to attract the pawl 522, the pawl 522 releases the ratchet 51, the winding drum 20 rotates under the driving of the motor 41, and when the motor 41 stops operating, the magnetic member 521 loses magnetism to release the pawl 522, so that the pawl 522 catches the ratchet 51, and the winding drum 20 stops rotating. In this embodiment, the magnetic member 521 is an electromagnet, but in other embodiments, other magnetic members may be used.

Further, the pawl assembly 52 further includes an adaptor 523 and an elastic member 524, the pawl 522 is rotatably connected to the base 10 through the adaptor 523, the adaptor 523 is disposed between a connection end of the pawl 522 and the elastic member 524 and a connection end of the pawl 522 and the magnetic member 521, one end of the elastic member 524 is connected to one end of the pawl 522 away from the magnetic member 521, and the other end is connected to the base 10. When the motor 41 normally operates, the magnetic member 521 attracts the pawl 522, the pawl 522 releases the ratchet 51, and the elastic member 524 stretches; when the motor 41 stops operating, the magnetic member 521 is powered off and loses magnetism, the magnetic member 521 releases the pawl 522, and the elastic member 524 provides resilience for the pawl 522 to clamp the ratchet 51.

Preferably, the pawl 522 further comprises a connecting element 525, one end of the connecting element 525 is connected with the pawl 522, the other end of the connecting element 525 extends into the magnetic element 521, when the magnetic element 521 is electrified, the magnetic element 521 attracts the pawl 522, one end of the pawl 522 drives the connecting element 525 to move in a direction away from the ratchet wheel 51, the connecting element 525 pulls the pawl 522, thereby releasing the ratchet wheel 51, and meanwhile, the connecting element 525 plays a role of supporting the pawl 522. The connecting member 525 is provided with a limiting block 525a, the limiting block 525a is arranged between the magnetic member 521 and the pawl 522, and when the magnetic member 521 attracts the pawl 522, the limiting block 525a abuts against the magnetic member 521 along with the movement of the connecting member 525 to prevent the pawl 522 from further moving. In this embodiment, the limiting block 525a is provided with a cone shape, however, in other embodiments, the limiting block 525a may also be provided with a square shape or other shapes.

In the working process, according to the size and the weight of the device, the number of the lifting steel wire ropes 200 is selected, the corresponding pulleys 322 are selected, the motor 41 works to drive the output shaft 411 to rotate, the magnetic member 521 loses power, the pawl 522 is attracted, the pawl 522 releases the ratchet wheel 51, the output shaft 411 is fixedly connected with the winding drum 20, the output shaft 411 drives the winding drum 20 to rotate, the winding drum 20 drives the nut seat 312 to rotate, the nut seat 312 is movably connected with the base 10, and the nut seat 312 is limited to move along the direction perpendicular to the axis 101, namely, the nut seat 312 is limited to move away from the output shaft 411. The nut seat 312 is connected with the screw 311 in a threaded manner, the nut seat 312 rotates to drive the screw 311 to move away from the output shaft 411 and then drive the rope arranging frame 32 to move, so that the steel wire rope 200 is wound into the spiral rope groove 22, and the steel wire rope 200 lifts the equipment. When the apparatus is required to be dropped, the motor 41 is rotated in the reverse direction to wind the wire rope 200 out of the rope groove 22.

When the device is lifted or dropped to a target position, the motor 41 stops moving, the magnetic member 521 is electrified, the pawl 522 is released, the pawl 522 clamps the ratchet 51, the ratchet 51 locks the winding drum 20, the winding drum 20 stops rotating, the winding drum 20 is prevented from continuing to wind in or wind out the steel wire rope 200, and therefore the normal lifting function is prevented from being influenced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a hoist engine, includes base, reel and rope arranging device, the reel is installed on the base, rope arranging device with the reel is connected its characterized in that:

the winding machine further comprises a locking device, one part of the locking device is arranged on the winding drum, the other part of the locking device is arranged on the base, and the locking device is used for locking the winding drum in a stop state of the winding machine.

2. The hoisting machine of claim 1, wherein: the locking device comprises a ratchet wheel and a pawl assembly, the ratchet wheel is fixedly connected with the winding drum, the pawl assembly is movably connected with the base, and the pawl assembly is used for clamping or releasing the ratchet wheel.

3. The hoist as claimed in claim 2, wherein: the pawl assembly comprises a magnetic part and a pawl, the magnetic part is fixed on the base, one end of the pawl is movably connected with the base, and the other end of the pawl is connected with the magnetic part.

4. The hoisting machine of claim 3, wherein: the pawl assembly further comprises an adapter and an elastic piece, one end of the elastic piece is connected with the base, the other end of the elastic piece is connected with one end of the pawl, and the pawl is movably connected with the base through the adapter.

5. The hoisting machine of claim 3, wherein: the pawl assembly further comprises a connecting piece, and the pawl and the magnetic piece are connected through the connecting piece.

6. The hoisting machine of claim 1, wherein: the rope arranging device comprises a screw rod assembly and a rope arranging frame, one end of the screw rod assembly is connected with the rope arranging frame, the other end of the screw rod assembly is connected with the winding drum, and the screw rod assembly drives the rope arranging frame to move along the direction perpendicular to the axis of the winch.

7. The hoist as claimed in claim 6, wherein: the screw assembly comprises a screw and a nut seat, the nut seat is sleeved on the screw and is movably connected with the base, and the winding drum drives the nut seat to rotate;

one end of the screw rod extends into the winding drum, and the other end of the screw rod is connected with the rope arranging frame.

8. The hoist as claimed in claim 6, wherein: the winding machine further comprises a driving device, the driving device is installed at one end, far away from the screw assembly, of the winding drum, and the driving device drives the winding drum to rotate.

9. The hoisting machine of claim 1, wherein: the winding drum is provided with rope grooves, and the rope grooves are spirally distributed along the direction perpendicular to the axis of the winch.

10. The hoist as claimed in claim 7, wherein: one end of the screw rod, extending out of the winding drum, is provided with a protective cover, and the protective cover wraps the screw rod.