CN218788648U

CN218788648U - Synchronous winding device for construction elevator cable

Info

Publication number: CN218788648U
Application number: CN202222737189.5U
Authority: CN
Inventors: 何慧云
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-04
Anticipated expiration: 2032-10-18

Abstract

The synchronous cable winding device for the construction elevator comprises a cable locking and guiding mechanism, a cable winding mechanism and a gear transmission case; the cable locking and guiding mechanism is fixedly arranged on the rack, and a cable guiding channel for fixing a cable is arranged in the cable locking and guiding mechanism; the cable winding mechanism comprises a winding reel, a rotating shaft and a bracket; the distance between the cable locking guide mechanism and the winding reel is s ₁ The length of the cable between the cable locking guide mechanism and the winding reel is s ₂ ，s ₂ =γ×s ₁ (ii) a Gamma is relaxation coefficient, and the value of gamma is 1.02-1.12. The utility model discloses the advantage lies in at the construction elevator operation in-process, and the cable that lies in between cable locking guiding mechanism and the cable winding mechanism remains the state of lax slightly throughout and along with the car goes up and down and adaptability lengthens or shortens, makes the cable have better anti-wind performance, and the cable can not rock under the wind-force effect by a wide margin and sway.

Description

Synchronous winding device for construction elevator cable

Technical Field

The utility model relates to a construction elevator safety device technical field, especially a construction elevator cable synchronous winding device.

Background

Construction elevator belongs to engineering special type operation mechanical equipment for transportation building material and construction worker, construction elevator is at the in-process that goes up and down to remove, the cable also can be along with elevator car synchronous motion, it is smooth and easy in order to ensure cable movement, current construction elevator all is provided with cable restraint structure, cable restraint structure divide into two kinds, one kind is based on cable car's cable restraint structure (comparatively common in the construction site in guangdong area), another kind is based on "wire cage + prevent wind the cable restraint structure of frame" (see utility model patent CN 215817419A's description background art and description figure 5).

For the restraint structure that adopts the cable dolly, the cable dolly is directly or indirectly with elevator car fixed connection, and cable one end is fixed at standard festival middle part (standard festival is on a parallel with elevator car lift track and arranges), and the cable other end passes inside the standard festival, and the gyro wheel of cable dolly is walked around again, stretches into inside the elevator car at last, has better cable theftproof nature. However, under the conditions of large wind power or over-fast descending speed of the elevator car, the cable is easy to be wound everywhere, and great potential safety hazards exist.

Although the constraint structure adopting the wire cage and the windproof frame has certain windproof and wind-resistant performance, the cable anti-theft structure is not specially designed, and a thief easily climbs to the upper end of the wire cage to cut off and steal the cable, so that economic loss of a construction party is caused.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, and provide a synchronous take-up device of construction elevator cable, it has solved current construction elevator cable restraint structure, can't compromise the theftproof nature simultaneously and prevent wind the problem of wind resistance.

The technical scheme of the utility model is that: the construction elevator cable synchronous winding device comprises a construction elevator; the construction elevator comprises a rack, a lift car, an electric box and a cable; the rack is directly or indirectly fixedly arranged on the ground, and a rack and a guide rail which are vertically arranged are arranged on the rack; the lift car is vertically lifted and moved under the limitation of the guide rail, a gear is rotatably arranged outside the lift car, and the gear is meshed with the rack; the electric box is directly or indirectly fixedly arranged on the ground; the front end of the cable extends into the electric box to obtain electric power, and the rear end of the cable is communicated to the inside of the lift car;

the cable locking and guiding mechanism, the cable winding mechanism and the gear box are further included; the cable locking and guiding mechanism is fixedly arranged on the rack, and a cable guiding channel for fixing a cable is arranged in the cable locking and guiding mechanism; the cable winding mechanism comprises a winding reel, a rotating shaft and a bracket; the winding reel is fixedly arranged on the rotating shaft, two ends of the rotating shaft extend out of the centers of two end faces of the winding reel, one end of the rotating shaft is provided with a gear A, the other end of the rotating shaft is provided with a carbon brush, the winding reel is movably arranged on the support through two end heads of the rotating shaft, and the support is fixedly arranged at the top of the lift car; an input shaft and an output shaft are arranged outside the gear box, a power transmission path for communicating the input shaft and the output shaft is arranged inside the gear box, a gear C and a gear D are respectively arranged on the input shaft and the output shaft, the gear C is meshed with the rack to obtain power, and the gear D is meshed with the gear A to output power; the front end of the cable extends out of the electric box, and the rear end of the cable firstly passes through the cable guide channel, then bypasses the winding reel one by one, then passes through the carbon brush and finally is communicated to the inside of the lift car;

when the lift car vertically moves along the guide rail, the gear C of the gear gearbox rolls along the rack to obtain rotating power, the rotating power is transmitted to the rotating shaft through the gear C, the input shaft, the power transmission path, the output shaft, the gear D and the gear A in sequence to drive the winding reel to rotate, and the winding or unwinding of the cable on the winding reel is realized; the distance between the cable locking guide mechanism and the winding reel is s ₁ The length of the cable between the cable locking guide mechanism and the winding reel is s ₂ ，s ₂ =γ×s ₁ (ii) a Gamma is relaxation coefficient and is 1.02-1.12.

The utility model discloses further technical scheme is: the cable winding mechanism further comprises a sensing pin, and the sensing pin is fixedly installed between the support and the car.

The utility model discloses still further technical scheme is: the cable winding mechanism also comprises an arc-shaped protective cover and a locking screw; the upper end and the lower end of the arc-shaped protective cover are respectively provided with an outer arc surface and an inner arc surface, the radian of the inner arc surface is matched with the radian of the outer circular surface of the winding drum, the two ends of the arc-shaped protective cover are provided with angle plates for connecting the support, and the lower ends of the angle plates are provided with vertically arranged U-shaped bayonets; the locking screw penetrates through the U-shaped bayonet and is in threaded connection with a threaded hole in the support, so that the arc-shaped protective cover is fixed at the upper end of the support, a non-standard jack is arranged at the head of the locking screw, and the non-standard jack is not matched with any type of socket head wrench; and loosening the locking screw to adjust the vertical distance between the arc-shaped protective cover and the winding reel.

The utility model discloses further technical scheme is: the cable locking guide mechanism comprises an upper arc-shaped groove body, a lower arc-shaped groove body, a locking bolt and a locking nut; the cable guide channel is formed by surrounding and forming the cable guide channel, and the two ends of the cable guide channel are respectively a horizontal port and a vertical port;

correspondingly, the front end of the cable extends out of the electric box, the rear end of the cable firstly enters the cable guide channel through the horizontal port of the cable guide channel, then extends out of the cable guide channel from the vertical port of the cable guide channel, then bypasses the winding reel one by one, then passes through the carbon brush and finally is communicated to the inside of the car.

The utility model discloses a further technical scheme is: the gearbox also comprises a box body used for containing the gear A, the gear C and the gear D, and the box body is directly or indirectly fixedly arranged on the bracket.

Compared with the prior art, the utility model has the advantages of as follows:

1. in the operation process of a construction elevator, the distance between the cable locking guide mechanism and the cable winding mechanism is increased or decreased along with the lifting of the car, the cable between the cable locking guide mechanism and the cable winding mechanism is always in a slightly loose state and is adaptively extended or shortened along with the lifting of the car (on one hand, the cable wound on the cable locking guide mechanism and the cable winding mechanism is wound on the cable winding mechanism through the forward and reverse rotation of the winding reel, so that the extension or shortening of the cable is adjusted, on the other hand, the speed of extension or shortening of the cable is designed to be consistent with the lifting speed of the car, so that the cable is always in a slightly loose state), the cable has good wind resistance, and the cable cannot swing and swing greatly under the action of wind power.

2. When the construction elevator is stopped, on one hand, the winding drum is in a locking state synchronous with the elevator brake, the winding drum cannot rotate at the moment, the cable cannot be wound and unwound in a mode of rotating the winding drum, the difficulty of stealing the cable is high (the cable needs to be faded down from the outer circular surface of the winding drum circle by circle after being cut off), on the other hand, the arc-shaped protective cover is adjusted to enable the inner arc surface of the arc-shaped protective cover to be close to the outer circular surface of the winding drum, the difficulty of stealing the cable can be further improved (the operable space for fading the cable from the outer circular surface of the winding drum circle by circle is reduced), on the other hand, the head of the locking screw is provided with a non-standard jack, the non-standard jack is not matched with an inner hexagon wrench of any type and can only be screwed by a special wrench matched with the non-standard jack, and the three aspects are integrated, so that the anti-theft performance of the cable is greatly improved.

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

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

FIG. 3 is a schematic structural view of the cable winding mechanism;

FIG. 4 is a schematic view of the cable lock guide mechanism;

fig. 5 is a right side view of fig. 4.

Detailed Description

Example 1:

as shown in fig. 1 to 5, the construction elevator cable synchronous winding apparatus includes a construction elevator, a cable locking guide mechanism 2, a cable winding mechanism, and a gear transmission case 4.

The construction elevator comprises a machine frame, a car 12, an electric box 13 and a cable 14. A frame (not shown) is fixedly installed on the ground, and a rack 111 and a guide rail 112 are vertically arranged thereon. The car 12 is vertically moved up and down by the guide rails 112, and a gear (not shown) is rotatably installed outside the car 12 and meshed with the rack 111. The electric box 13 is directly or indirectly fixedly installed on the ground. The cable 14 has a front end extending into the electric box 13 to receive electric power and a rear end communicating with the inside of the car 12.

The cable locking and guiding mechanism 2 is fixedly arranged on the frame, and a cable guiding channel for fixing the cable is arranged in the cable locking and guiding mechanism. The cable locking guide mechanism comprises an upper arc-shaped groove body 21, a lower arc-shaped groove body 22, a locking bolt 23 and a locking nut 24. Go up arc cell body 21 and arc cell body 22 down and all be L shape, it is including the horizontal segment A that connects gradually to go up arc cell body 21, segmental arc A and vertical section A, lower arc cell body 22 is including the horizontal segment B that connects gradually, segmental arc B and vertical section B, it is in the frame to go up arc cell body 21 fixed mounting, it passes through locking bolt 23 and locking nut 24 fixed connection in the upper end of arc cell body 22 down to go up arc cell body 21, the segmental arc A of going up arc cell body 21 and the segmental arc B of arc cell body 22 down arrange relatively, the vertical section A of going up arc cell body 21 and the vertical section B of arc cell body 22 down arrange relatively, the groove of going up the inside of arc cell body 21 and the groove of arc cell body 22 inside arrange relatively down, thereby surround and form cable guide channel, cable guide channel's both ends are horizontal mouth and vertical mouth respectively.

The cable winding mechanism includes a spool 31, a rotating shaft 32, and a bracket 33. The winding reel 31 is fixedly installed on the rotating shaft 32, two ends of the rotating shaft 32 extend out of centers of two end faces of the winding reel 31, a gear A34 is installed at one end of the rotating shaft 32, a carbon brush 35 is installed at the other end of the rotating shaft 32, the winding reel 31 is movably installed on a support 33 through two end heads of the rotating shaft 32, and the support 33 is fixedly installed at the top of the car 12.

An input shaft 41 and an output shaft 42 are arranged outside the gearbox 4, a power transmission path for communicating the input shaft 41 with the output shaft 42 is arranged inside the gearbox 4, a gear C43 and a gear D44 are respectively arranged on the input shaft 41 and the output shaft 42, the gear C43 is meshed with the rack 111 to obtain power, and the gear D44 is meshed with the gear A34 to output power. The internal structure of a gearbox is prior art and is not described herein any more, and a gearbox meeting the requirements can be selected according to the transmission ratio during application.

Preferably, the cable winding mechanism further comprises a sensing pin 36, and the sensing pin 36 is fixedly installed between the bracket 33 and the car 12. Based on the arrangement of the sensing pin 36, the abnormal state in the power transmission can be sensed and an alarm signal is sent out, when the gear transmission case fails to normally receive power or output power, the winding reel 31 stops rotating, if the car 12 is still lifted at the moment, the cable 14 is immediately tightened, the stress state of the sensing pin 36 changes immediately, and the alarm signal is sent out and the construction elevator is controlled to stop running.

Preferably, the cable winding mechanism further comprises an arc-shaped protection cover 37 and a locking screw 38, wherein the upper end and the lower end of the arc-shaped protection cover 37 are respectively provided with an outer arc surface and an inner arc surface, the radian of the inner arc surface is matched with the radian of the outer circular surface of the winding reel 31, the two ends of the arc-shaped protection cover 37 are provided with corner plates 371 used for connecting the bracket 33, and the lower ends of the corner plates 371 are provided with vertically arranged U-shaped bayonets 372. The locking screw 38 passes through the U-shaped bayonet 372 and is in threaded connection with a threaded hole in the bracket 33, so that the arc-shaped protective cover 37 is fixed at the upper end of the bracket 33, a non-standard insertion hole is formed in the head of the locking screw 38, the non-standard insertion hole is not matched with any type of inner hexagonal wrench, and the locking screw can only be screwed by a special wrench matched with the non-standard insertion hole. The locking screw 38 is loosened to adjust the vertical distance between the arc protection cover 37 and the winding reel 31, when the inner arc surface of the arc protection cover 37 is closely adjacent to the outer circumferential surface of the winding reel 31, the cable 14 wound around the outer circumferential surface of the winding reel 31 can be protected and prevented from dust, and when the arc protection cover 37 is not in contact with the winding reel 31, the winding reel 31 can be driven by external power to rotate, so that the cable 14 wound around the outer circumferential surface of the winding reel 31 can be wound and unwound.

Preferably, the construction elevator cable synchronous winding apparatus further includes a case (not shown) for housing the gear a34, the gear C43 and the gear D44, the case being fixedly installed on the bracket 31.

In this embodiment, the front end of the cable 14 extends out from the inside of the electric box 13, and the rear end of the cable firstly enters the cable guide channel through the horizontal opening of the cable guide channel, and then extends out of the cable guide channel from the vertical opening of the cable guide channel, and then extends upward to the winding reel 31 and bypasses the winding reel 31 one by one, and then passes through the carbon brush 35 and finally communicates with the inside of the car 12.

Brief description the working principle of the utility model:

when the car 12 moves vertically up and down along the guide rail 112, the gear C43 of the gear transmission rolls along the rack 111 to obtain rotational power, the rotational power is transmitted to the rotating shaft 32 through the gear C43, the input shaft 41, the power transmission path, the output shaft 42, the gear D44 and the gear a34 in sequence, the winding drum 31 is driven to rotate, and the winding or unwinding of the cable on the winding drum 31 is realized (the winding drum 31 unwinds when the car 12 ascends, and the winding drum 31 winds when the car 12 descends).

When the car 12 moves vertically up and down along the guide rails 112, the cable 14 between the cable lock guide and the winding reel is extended or shortened adaptively and always remains in a slightly loose state. To meet this requirement, it is necessary to experimentally determine that the diameter of the winding reel 31 and the transmission ratio of the gear box are within a certain range, so that the adaptive expansion and contraction speed of the cable 14 matches the lifting speed of the car 12.

In a slightly relaxed state: the distance between the cable locking guide mechanism and the winding reel 31 is s ₁ The length of the cable between the cable locking guide mechanism and the winding reel 31 is s ₂ ，s ₂ =γ×s ₁ (ii) a Gamma is relaxation coefficient, and the value of gamma is 1.02-1.12. The value of gamma is between 1.02 and 1.12. Based on the selection of the parameters, the position of the cable 14 is limited within a certain range, the cable cannot greatly swing under the action of wind power, and the windproof performance is improved compared with that of the existing cable constraint structure.

Claims

1. The construction elevator cable synchronous winding device comprises a construction elevator; the construction elevator comprises a frame, a lift car, an electric box and a cable; the rack is directly or indirectly fixedly arranged on the ground, and a rack and a guide rail which are vertically arranged are arranged on the rack; the lift car is vertically lifted and moved under the limitation of the guide rail, a gear is rotatably arranged outside the lift car, and the gear is meshed with the rack; the electric box is directly or indirectly fixedly arranged on the ground; the front end of the cable extends into the electric box to obtain electric power, and the rear end of the cable is communicated to the inside of the car;

the cable winding device also comprises a cable locking and guiding mechanism, a cable winding mechanism and a gear transmission case; the cable locking and guiding mechanism is fixedly arranged on the rack, and a cable guiding channel for fixing a cable is arranged in the cable locking and guiding mechanism; the cable winding mechanism comprises a winding reel, a rotating shaft and a bracket; the winding reel is fixedly arranged on the rotating shaft, two ends of the rotating shaft extend out of the centers of two end faces of the winding reel, one end of the rotating shaft is provided with a gear A, the other end of the rotating shaft is provided with a carbon brush, the winding reel is movably arranged on the support through two end heads of the rotating shaft, and the support is fixedly arranged at the top of the lift car; an input shaft and an output shaft are arranged outside the gear box, a power transmission path for communicating the input shaft and the output shaft is arranged inside the gear box, a gear C and a gear D are respectively arranged on the input shaft and the output shaft, the gear C is meshed with the rack to obtain power, and the gear D is meshed with the gear A to output power; the front end of the cable extends out of the electric box, and the rear end of the cable firstly passes through the cable guide channel, then bypasses the winding reel one by one, then passes through the carbon brush and finally is communicated to the inside of the lift car;

2. The construction elevator cable synchronous winding apparatus as set forth in claim 1, wherein: the cable winding mechanism further comprises a sensing pin, and the sensing pin is fixedly installed between the support and the car.

3. The construction elevator cable synchronous winding apparatus as set forth in claim 2, wherein: the cable winding mechanism also comprises an arc-shaped protective cover and a locking screw; the upper end and the lower end of the arc-shaped protective cover are respectively provided with an outer arc surface and an inner arc surface, the radian of the inner arc surface is matched with the radian of the outer circular surface of the winding drum, the two ends of the arc-shaped protective cover are provided with angle plates for connecting the support, and the lower ends of the angle plates are provided with vertically arranged U-shaped bayonets; the locking screw penetrates through the U-shaped bayonet and is in threaded connection with the threaded hole in the support, so that the arc-shaped protective cover is fixed at the upper end of the support, a non-standard jack is arranged at the head of the locking screw, and the non-standard jack is not matched with any type of inner hexagon wrench; and loosening the locking screw to adjust the vertical distance between the arc-shaped protective cover and the winding reel.

4. The construction elevator cable synchronous winding apparatus as set forth in claim 3, wherein: the cable locking guide mechanism comprises an upper arc-shaped groove body, a lower arc-shaped groove body, a locking bolt and a locking nut; the cable guide channel is formed by surrounding and forming the cable guide channel, and the two ends of the cable guide channel are respectively a horizontal port and a vertical port;

5. The construction elevator cable synchronous winding apparatus as set forth in claim 4, wherein: the gearbox also comprises a box body used for containing the gear A, the gear C and the gear D, and the box body is directly or indirectly fixedly arranged on the bracket.