CN216687038U

CN216687038U - Construction elevator in shaft

Info

Publication number: CN216687038U
Application number: CN202120728694.6U
Authority: CN
Inventors: 孙桂新
Original assignee: Dongguan Xinfeng Construction Machinery Co ltd
Current assignee: Dongguan Xinfeng Construction Machinery Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-06-07
Anticipated expiration: 2031-04-09

Abstract

The utility model belongs to the technical field of elevators in hoistways, and particularly relates to a construction elevator in a hoistway, which is applied to a construction hoistway, wherein the construction hoistway is vertically arranged and communicated with the ground and each floor level above the ground, the construction elevator in the hoistway comprises a traction device, an asynchronous motor and a gearbox, the traction device is arranged on the ground, the asynchronous motor is arranged on the traction device and is used for providing power, the gearbox is connected between the asynchronous motor and the traction device and is used for changing the transmission ratio between the asynchronous motor and the traction device, the gearbox is arranged to ensure that the asynchronous motor keeps constant-speed operation by changing the transmission ratio between the asynchronous motor and the traction device, the asynchronous motor has higher operation efficiency and better working characteristics and is close to constant-speed operation from no-load to full-load range, thereby enabling power consumption to be reduced.

Description

Construction elevator in shaft

Technical Field

The utility model belongs to the technical field of elevators in a hoistway, and particularly relates to a construction elevator in a hoistway.

Background

The traction machine is used for improving power for a steel wire rope in a construction elevator so that a suspension cage and a counterweight frame vertically run up and down along a guide rail, but the conventional traction machine generally directly drives a traction wheel to rotate through an asynchronous motor, so that the carried goods have different weights, and the torque output by the asynchronous motor is correspondingly changed, thereby causing the power consumption of the asynchronous motor to be larger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a construction elevator in a hoistway, and aims to solve the technical problem of high power consumption caused by the fact that an asynchronous motor directly drives a traction sheave to rotate in the prior art.

In order to achieve the above object, an embodiment of the present invention provides an in-hoistway construction elevator, which is applied in a construction hoistway, the construction hoistway is vertically arranged and communicates with a ground surface and each floor surface above the ground surface, the in-hoistway construction elevator includes a traction device, an asynchronous motor and a transmission case, the traction device is mounted on the ground surface, the asynchronous motor is mounted on the traction device and is used for providing power, and the transmission case is connected between the asynchronous motor and the traction device and is used for changing a transmission ratio between the asynchronous motor and the traction device.

Optionally, construction elevator still includes guide rail, spandrel girder, wire rope, cage and counter-weight frame in the well, the guide rail install in on the lateral wall in the well, the cage is followed the guide rail reciprocates, the spandrel girder is connected in one of them on the floor face, wire rope twines through the spandrel girder with traction device, wire rope's both ends respectively with counter-weight frame with the cage is connected.

Optionally, the traction device comprises a base, a guide wheel set and a traction sheave; the traction sheave is mounted on the base and is in friction connection with the steel wire rope to draw the steel wire rope, the guide wheel set is mounted on the base and is used for guiding the bypassing direction of the steel wire rope, and the gearbox is connected between the traction sheave and the asynchronous motor.

Optionally, the gearbox includes a worm wheel and a worm, the worm wheel is coaxially connected with the traction sheave, the worm is meshed with the worm wheel, and one end of the worm is connected with an output shaft of the asynchronous motor through a coupling for transmission.

Optionally, the traction device further comprises a brake assembly, and the brake assembly is connected with the coupler.

Optionally, a side portion of the traction sheave is provided with a rope groove frictionally connected with the wire rope.

Optionally, the base comprises a guide bracket, and a free end of the guide bracket extends into the hoistway; the guide wheel group comprises a first guide wheel, a second guide wheel and a third guide wheel; the first guide wheel and the second guide wheel are arranged at the free end of the guide support in an up-and-down mode, the third guide wheel is arranged below the traction wheel, and the steel wire rope sequentially penetrates through the first guide wheel, the traction wheel, the third guide wheel and the second guide wheel.

Optionally, the base further comprises a protection member, and the protection member is mounted above the first guide wheel.

Optionally, a brake is arranged at the bottom of the cage, and the construction elevator in the hoistway further comprises a safety mechanism for actuating the brake.

Optionally, the load-bearing beam is of a telescopic structure.

One or more technical schemes in the construction elevator in the shaft provided by the embodiment of the utility model at least have one of the following technical effects: during operation, asynchronous machine passes through the gearbox and drives the traction device and begin work, thereby it rises or descends to pull construction elevator in the well, traction device installs subaerial, need not to follow building layer rising and constantly promote, the degree of difficulty of construction has been reduced, and along with building constantly rises the layer, the gearbox that sets up is through changing the drive ratio between asynchronous machine and the traction device, make asynchronous machine keep constant speed operation, and asynchronous machine has higher operating efficiency and better operating characteristic, from empty load to full load within range near constant speed operation, thereby can reduce power consumption.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a construction elevator in a hoistway according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a traction device in a construction elevator in a hoistway according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a transmission case in the construction elevator in the hoistway according to the embodiment of the present invention.

Fig. 4 is an enlarged schematic view of the construction elevator in the hoistway at a provided in fig. 1.

Wherein, in the figures, the respective reference numerals:

10-traction device 11-base 112-guide support

113-protective element 12-second guide wheel group 121-first guide wheel

122-second leading sheave 123-third leading sheave 13-traction sheave

20-asynchronous motor 30-gearbox 31-worm wheel

32-worm 40-guide 50-bearing beam

51-first guide wheel set 60-steel wire rope 70-suspension cage

71-brake 72-safety mechanism 80-counterweight frame.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in fig. 1-4, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1 to 4, there is provided an in-hoistway construction elevator for use in a construction hoistway, the construction hoistway being vertically disposed and communicating a ground surface and floor surfaces above the ground surface, the in-hoistway construction elevator including a traction device 10, an asynchronous motor 20, and a transmission case 30, the traction device 10 being installed on the ground surface, the asynchronous motor 20 being installed on the traction device 10 and being used to provide power, the transmission case 30 being connected between the asynchronous motor 20 and the traction device 10 and being used to change a transmission ratio between the asynchronous motor 20 and the traction device 10.

During specific work, the asynchronous motor 20 drives the traction device 10 to start work through the gearbox 30, so that the construction elevator in the traction shaft rises or falls, the traction device 10 is installed on the ground and does not need to rise continuously along with the rise of a building, the construction difficulty is reduced, and along with the continuous rise of the building, the gearbox 30 is arranged by changing the transmission ratio between the asynchronous motor 20 and the traction device 10, so that the asynchronous motor 20 keeps constant-speed operation, the asynchronous motor 20 has higher operation efficiency and better working characteristics, the operation is close to the constant-speed operation within the range from no-load to full-load, and the power consumption can be reduced.

In another embodiment of the present invention, as shown in fig. 1, the construction hoist in the hoistway further includes a guide rail 40, a bearing beam 50, a wire rope 60, a cage 70, and a counterweight frame 80, the guide rail 40 is installed on a sidewall in the hoistway, the cage 70 moves up and down along the guide rail 40, the bearing beam 50 is connected to one of the floor levels, the wire rope 60 passes around the bearing beam 50 and the traction apparatus 10, and both ends of the wire rope 60 are connected to the counterweight frame 80 and the cage 70, respectively. Specifically, one end of the steel wire rope 60 is connected with the suspension cage 70, the other end of the steel wire rope 60 sequentially penetrates through the bearing beam 50, the traction device 10 and the bearing beam 50 and then is connected with the counterweight frame 80, the traction device 10 draws part of the steel wire rope 60, so that the suspension cage 70 moves up and down along the guide rail 40, only the bearing beam 50 needs to be lifted in the layer lifting process, and the suspension cage 70 and the counterweight frame 80 are arranged in a hoistway, so that the collapse accident can be prevented, and the construction safety is improved.

In another embodiment of the present invention, as shown in fig. 1, the load-bearing beam 50 is of a telescopic structure. Specifically, when needs rise the layer, with this spandrel girder 50 shrink for spandrel girder 50's length is less than the width of well, thereby is convenient for promote, expandes this spandrel girder 50 when fixed, makes spandrel girder 50's length be greater than the width of well, fixes, through shrink and expansion, realizes the promotion to spandrel girder 50, can reduce the degree of difficulty that promotes spandrel girder 50.

In another embodiment of the present invention, as shown in fig. 1, a plurality of first guide wheel sets 51 for guiding the steel cable 60 in the winding direction are disposed on the bearing beam 50. The first guide wheel set 51 can guide the steel wire rope 60 passing through the bearing beam 50 to the bypassing direction, so that the steel wire rope 60 is prevented from being wound together in a staggered manner, and the construction safety is improved.

In another embodiment of the present invention, as shown in fig. 1 and 2, the traction apparatus 10 includes a base 11, a second guide pulley group 12, and a traction sheave 13; the traction sheave 13 is installed on the base 11 and frictionally connected with the wire rope 60 to draw the wire rope 60, the second guide pulley group 12 is installed on the base 11 and serves to guide the detour direction of the wire rope 60, and the transmission case 30 is connected between the traction sheave 13 and the asynchronous motor 20. Specifically, the asynchronous motor 20 drives the traction sheave 13 to rotate through the gearbox 30, and the traction sheave 13 pulls the wire rope 60 by friction, thereby driving the cage 70 and the counterweight frame 80 to move up and down.

In another embodiment of the present invention, as shown in fig. 1 and 3, the gearbox 30 includes a worm wheel 31 and a worm 32, the worm wheel 31 is coaxially connected with the traction sheave 13, the worm 32 is engaged with the worm wheel 31, and one end of the worm 32 is in transmission connection with an output shaft of the asynchronous motor 20 through a coupling. Specifically, the asynchronous motor 20 drives the worm 32 to rotate through the coupler, the worm 32 drives the worm wheel to rotate, the worm wheel drives the traction sheave 13 to rotate, and a worm wheel and worm 32 transmission mode is adopted, so that a large transmission ratio can be obtained, the structure is compact, the transmission is stable, and the working stability of the traction device 10 is improved.

In another embodiment of the present invention, the traction apparatus 10 further comprises a brake assembly (not shown), and the brake assembly is connected with the coupling. Specifically, when the traction device 10 stops working, the brake assembly locks the coupler, so that the asynchronous motor 20 can be prevented from being damaged due to the reverse rotation of the turbine, and the stability of the asynchronous motor 20 in use is ensured.

In another embodiment of the present invention, the side of the traction sheave 13 is provided with a rope groove frictionally connected with the wire rope 60. Specifically, the rope grooves are arranged to keep the steel wire rope 60 at the side of the traction sheave 13 during the operation, thereby preventing the steel wire rope 60 from being separated from the traction sheave 13 and improving the safety of construction.

In another embodiment of the present invention, as shown in fig. 2, the base 11 comprises a guide bracket 112, and a free end of the guide bracket 112 extends into the well; the second guide wheel group 12 comprises a first guide wheel 121, a second guide wheel 122 and a third guide wheel 123; the first guide sheave 121 and the second guide sheave 122 are vertically arranged and mounted on the free end of the guide bracket 112, the third guide sheave 123 is mounted below the traction sheave 13, and the wire rope 60 sequentially passes through the first guide sheave 121, the traction sheave 13, the third guide sheave 123 and the second guide sheave 122. Specifically, the guide rails are provided to extend into the hoistway, thereby guiding the wire rope 60 located inside the hoistway to the traction sheave 13 outside the hoistway.

In another embodiment of the present invention, as shown in fig. 2, the base 11 further includes a protection member 113, and the protection member 113 is installed above the first guide wheel 121. Specifically, because the first guide wheel 121 and the second guide wheel 122 are both located in the hoistway, the protection member 113 can prevent the first guide wheel 121 or the second guide wheel 122 from being damaged by an object falling from the suspension cage 70, and the safety of the operation is improved.

In another embodiment of the present invention, as shown in fig. 1, a brake 71 is disposed at the bottom of the cage 70, and the construction hoist in the hoistway further includes a safety mechanism 72 for actuating the brake 71. Specifically, when the cage 70 accidentally drops in the hoistway, the mounting mechanism pulls upwards to drive the brake 71 to lock the guide rail 40, so that the cage 70 is braked and stopped, and the safety of the construction process is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The construction elevator in the shaft is applied to the construction shaft, the construction shaft is vertically arranged and communicated with the ground and each floor surface positioned above the ground, the construction elevator in the shaft comprises a traction device, an asynchronous motor and a gearbox, the traction device is installed on the ground, the asynchronous motor is installed on the traction device and used for providing power, and the gearbox is connected between the asynchronous motor and the traction device and used for changing the transmission ratio between the asynchronous motor and the traction device.

2. The construction elevator in the shaft according to claim 1, further comprising a guide rail, a bearing beam, a steel wire rope, a suspension cage, and a counterweight frame, wherein the guide rail is installed on a side wall in the shaft, the suspension cage moves up and down along the guide rail, the bearing beam is connected to one of the floor surfaces, the steel wire rope passes around the bearing beam and the traction device, and two ends of the steel wire rope are connected to the counterweight frame and the suspension cage respectively.

3. The in-hoistway construction elevator according to claim 2, wherein the traction device includes a base, a guide pulley group, and a traction sheave; the traction sheave is mounted on the base and is in friction connection with the steel wire rope to draw the steel wire rope, the guide wheel set is mounted on the base and is used for guiding the bypassing direction of the steel wire rope, and the gearbox is connected between the traction sheave and the asynchronous motor.

4. The construction elevator in the hoistway according to claim 3, wherein the transmission case includes a worm wheel and a worm, the worm wheel is coaxially connected with the traction sheave, the worm is meshed with the worm wheel, and one end of the worm is connected with an output shaft of the asynchronous motor through a coupling for transmission.

5. The construction elevator in a hoistway according to claim 4, wherein the hoisting device further comprises a brake assembly, and the brake assembly is connected to the coupling.

6. The in-hoistway construction elevator according to claim 3, wherein a side portion of the traction sheave is provided with a rope groove in frictional connection with the wire rope.

7. The in-hoistway construction hoist of claim 3 wherein the base includes a guide bracket, a free end of the guide bracket extending into the hoistway; the guide wheel group comprises a first guide wheel, a second guide wheel and a third guide wheel; the first guide wheel and the second guide wheel are arranged at the free end of the guide support in an up-and-down mode, the third guide wheel is arranged below the traction wheel, and the steel wire rope sequentially penetrates through the first guide wheel, the traction wheel, the third guide wheel and the second guide wheel.

8. The hoist as claimed in claim 7, wherein the base further includes a protector mounted above the first guide wheel.

9. The in-hoistway construction elevator according to claim 2, wherein a brake is provided at a bottom of the cage, and the in-hoistway construction elevator further comprises a safety mechanism for actuating the brake.

10. The in-hoistway construction elevator according to claim 2, wherein the load beam has a telescopic structure.