CN210457296U - Single-chain upside-down hanging circulating elevator - Google Patents

Abstract

The utility model discloses a single-chain upside-down hanging circulation lifting machine, the aircraft nose including the bottom, install the lifting wheel through motor drive on the aircraft nose, the below of aircraft nose is connected with lower lifting hook, the winding has lower lifting chain on the lifting wheel, still include connecting piece, guide pulley, upper lifting chain and hang the universal shaft, the below of upper connecting piece links together with the guide pulley, the cover is equipped with the spring of adjusting the chain elasticity on the upper connecting piece, upper lifting chain winding is connected on the guide pulley, the both ends of upper lifting chain and the both ends of lower lifting hook form closed endless chain through two universal shaft connections that hang; the hanging cardan shaft is provided with a positioning hole for positioning the wall body. The utility model discloses think about ingenious, design scientific and reasonable, the closed equipment mode of self-loopa, the whole length of chain sling shortens, has alleviateed the holistic weight of lifting machine, makes its atress clear, the installation comparatively convenient, practiced thrift manual work and overall cost.

Description

Single-chain upside-down hanging circulating elevator

Technical Field

The utility model relates to a lifting machine technical field especially relates to a circulation lifting machine is hung upside down to single chain.

Background

At present, the electric hoist in building field mainly is applied to the lift of the frame, the creeping formwork that climb of building engineering, and the overwhelming majority of lifting machine among the prior art adopts many root canals chain to carry out gravity lift, can make the whole weight of lifting machine increase, occupation space, and it is comparatively troublesome to dismantle, and whole cost of manufacture is higher.

The patent of Chinese utility model, patent number 201810112918.3, the patent name is an inverted circulation electric hoist, discloses an inverted circulation electric hoist, including an upper hook and a lower hook, the upper hook is provided with an upper hanging point, the lower hook is provided with a machine head, the upper hanging point is provided with a guide wheel, the machine head is provided with a lifting wheel driven by a motor; the chain is closely surrounded on the guide wheel and the hoisting wheel to form a double-chain structure which is parallel to the left and the right, and two wall-attached hoisting points which are arranged to the left and the right are arranged on the chain. The inverted circulation electric hoist has the advantages of simple structure and convenience in use, can effectively improve the working efficiency by utilizing the alternate and cyclic use of double wall-attached hoisting points, and has good practicability. However, in the actual use process of the structure, because the structure of the lifted target object is stressed and deformed, the chain has allowance to become loose, so that the problem of chain clamping is caused, equipment is damaged inevitably often, the use requirement cannot be completely met, and meanwhile, the two wall-attached hanging points are of a steel plate composite linear connection structure, so that the flexibility is poor in the actual use process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circulation lifting machine is hung upside down to single chain reduces the whole weight of lifting machine, and occupation space is littleer for the lifting machine suitability is more extensive.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a single chain overhead circulation lifting machine, the aircraft nose including the bottom, install the lifting wheel through motor drive on the aircraft nose, the below of aircraft nose is connected with lower lifting hook, the winding has lower lifting chain on the lifting wheel, still includes connecting piece, guide pulley, upper lifting chain and hangs the cardan shaft, the below of upper connecting piece with the guide pulley links together, the cover is equipped with the spring of adjusting the chain elasticity on the upper connecting piece, the upper lifting chain winding is connected on the guide pulley, the both ends of upper lifting chain with the both ends of lower lifting hook form closed endless chain through two universal shaft connections that hang; and the suspension cardan shaft is provided with a positioning hole for positioning the wall body.

Furthermore, the positioning holes are specifically designed to be waist-shaped holes or round holes.

Furthermore, the suspension cardan shaft comprises a first assembly and a second assembly which are symmetrically arranged, free ends of the first assembly and the second assembly are provided with U-shaped grooves, two ends of the upper hanging chain and two ends of the lower hanging chain are connected in the U-shaped grooves through bolt assemblies, and the adjacent ends of the first assembly and the second assembly are connected together through a rotary connecting piece; the positioning hole is arranged on the first component or the second component.

Still further, the first assembly is rotated 360 ° about the central axis of the rotational connection relative to the second assembly.

Still further, the transition key on the guide wheel specifically adopts five-tooth spline.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model relates to a single chain hangs circulation lifting machine upside down, aircraft nose including the bottom, install the lifting wheel through motor drive on the aircraft nose, still include connecting piece, guide pulley, go up the sling chain and hang the cardan shaft, the below of going up the connecting piece links together with the guide pulley, goes up the cover and is equipped with the spring of adjusting the chain elasticity on the connecting piece, goes up the sling chain winding and connects on the guide pulley, goes up the sling chain, the both ends of lower lifting hook are connected through two universal shafts that hang and are formed closed endless chain. Compared with a multi-row sling chain structure, the winding connection mode is simplified, the whole length of the sling chain is shortened, the daily use requirement is met, the whole weight of the elevator is reduced, the stress of the elevator is clear, the installation is convenient, and the labor and the whole cost are saved. Compared with the prior art, the tail chain is not arranged, and the problems that the tail chain is suspended in the operation space and is easy to wind and separate, and faults and safety accidents are easy to occur are solved. The design of the spring can adjust the tightness of the closed loop chain at any time, ensure the tight fit of the upper and lower hoisting chains with the guide wheel and the hoisting wheel, and effectively avoid the chain jamming problem; secondly, the design of the hanging universal shaft enables the connection part of the lower hanging chain and the upper hanging chain to rotate by 360 degrees, the position adjustment is more flexible during the heavy object lifting, and the use is more convenient.

When the device works, the lower lifting hook is hung and connected with the bottom of the attached lifting scaffold body, the positioning hole on the hanging universal shaft is connected with the attached wall support on the wall body, the upper connecting piece is connected with the top of the scaffold body, the other side of the scaffold body is connected with the building body upper support body through the guiding device, and then the connecting wire plug on the motor is communicated with a power supply; the motor drives the lifting wheel on the machine head to rotate to drive the closed loop chain to rotate, and the scaffold body is lifted upwards along with the rotation of the chain under the stress action of the wall-attached support; after the scaffold is lifted in place, the hanging universal shaft on the other side is connected with the wall-attached support on the wall body, the motor continuously operates to realize secondary lifting, and the lifting operation is repeatedly and circularly performed to smoothly realize the lifting operation of the scaffold body. In the operation process, the operation can be completed only by 1-2 persons to simply support and position, and the continuous lifting is realized by the alternate positioning of the two suspension cardan shafts without the need of the reverse rotation of a motor. The utility model discloses it is more convenient to operate, and the motor need not reverse to reset and can realize the secondary and promote, has improved the operating efficiency, not only saves labour laborsaving but also safe and reliable.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic view of the single-chain upside-down hanging circulation elevator of the present invention;

description of reference numerals: 1. an upper connecting piece; 2. a guide wheel; 3. an upper lifting chain; 4. a spring; 5. hanging a cardan shaft; 5-1, a first component; 5-2, a second component; 5-3, rotating the connecting shaft; 5-4, positioning holes; 6. a machine head; 7. a lower hook; 8. and (5) hanging the chain down.

Detailed Description

As shown in fig. 1, the single-chain upside-down hanging circulation elevator comprises a machine head 6 at the bottom, wherein a hoisting wheel driven by a motor is mounted on the machine head, a lower lifting hook 7 is connected below the machine head 6, a lower lifting chain 8 is wound on the hoisting wheel, the single-chain upside-down hanging circulation elevator further comprises an upper connecting piece 1, a guide wheel 2, an upper lifting chain 3 and a hanging universal shaft 5, the lower part of the upper connecting piece 1 is connected with the guide wheel 2, a spring 4 for adjusting the tightness of the chain is sleeved on the upper connecting piece 1, the upper lifting chain 3 is wound on the guide wheel 2, and two ends of the upper lifting chain 3 and two ends of the lower lifting hook 7 are connected through two hanging universal shafts 5 to form a closed loop chain; and the hanging universal shaft 5 is provided with positioning holes 5-4 for positioning the wall. Specifically, the main part of going up connecting piece 1 sets up to threaded rod structure, the upper and lower both ends of spring 4 are provided with the locating plate, the locating plate with go up connecting piece threaded connection together, adjust the interval of locating plate can carry out the fine-tuning to the taut degree of spring 4, and the setting of spring 4 is used for taut closed loop chain of going up chain 3 and 8 formation of hanging chain down simultaneously, prevents that closed loop chain from taking place the problem of overlapping the card chain on lifting wheel or transition key. Specifically, the diameter of the upper hoist chain 3 may be smaller than the size of the lower hoist chain 8, for example, when the upper hoist chain 3 is 8 mm chain, the lower hoist chain is 13 mm chain. According to the different of the article weight of lifting by crane, the size of chain also need carry out corresponding adjustment, the security in the assurance construction operation.

The positioning holes 5-4 are preferably designed by waist-shaped holes and then are round holes; during operation, generally, the bolt penetrates through the waist-shaped hole and then is fixedly connected to the wall-attached support, and the installation and the disassembly are convenient and fast.

The suspension cardan shaft 5 comprises a first assembly 5-1 and a second assembly 5-2 which are symmetrically arranged, free ends of the first assembly 5-1 and the second assembly 5-2 are provided with U-shaped grooves, two ends of the upper suspension chain 3 and two ends of the lower suspension chain 8 are connected in the U-shaped grooves through bolt assemblies, and adjacent ends of the first assembly 5-1 and the second assembly 5-2 are connected together through a rotary connecting piece 5-3; the positioning hole 5-4 is arranged on the first component 5-1 or the second component 5-2. The first module 5-1 is rotated 360 deg. about the central axis of the rotational connection 5-3 relative to the second module 5-2. When in use, the lifting device is convenient to adjust so as to reduce the rotation of a lifting object.

The transition key on the guide wheel 2 is a five-tooth spline, and other splines matched with the hoist chain can be adopted.

The working process of the utility model is as follows:

when the device works, the lower lifting hook 7 is firstly hung and connected with the bottom of an attached lifting scaffold body, a waist-shaped positioning hole 5-4 on a hanging universal shaft 5 is connected with an attached wall support on a wall body, an upper connecting piece 1 is connected with the top of the scaffold body, the other side of the scaffold body is connected with a support on a building body through a guiding device, and then a connecting wire plug on a motor is communicated with a power supply; the motor drives a hoisting wheel on the machine head 6 to rotate to drive a closed loop chain formed by the upper hoisting chain 3 and the lower hoisting chain 8 to rotate, and the scaffold body is lifted upwards along with the rotation of the chain under the action of the wall-attached support; after the scaffold is lifted in place, the waist-shaped positioning hole 5-4 on the suspension cardan shaft 5 on the other side and the wall-attached support connection motor on the wall body continue to operate, secondary lifting is achieved, and repeated circulation is conducted, so that lifting operation of the scaffold body is smoothly achieved. In the operation process, the operation can be completed only by 1-2 persons to simply support and position, and the continuous lifting is realized by the alternate positioning of the two suspension cardan shafts without the need of the reverse rotation of a motor. The utility model discloses it is more convenient to operate, has saved operating personnel, has simplified the operation degree of difficulty. The single closed loop chain structure reduces the whole weight of the hoister, so that the hoister is stressed clearly, is convenient to install and saves labor and the whole cost.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims (5)

1. The utility model provides a single chain hangs circulation lifting machine upside down, includes aircraft nose (6) of bottom, install the lifting wheel through motor drive on the aircraft nose, the below of aircraft nose (6) is connected with lower lifting hook (7), the winding has lower chain sling (8), its characterized in that on the lifting wheel: the chain-type lifting device is characterized by further comprising an upper connecting piece (1), a guide wheel (2), an upper lifting chain (3) and hanging universal shafts (5), wherein the lower part of the upper connecting piece (1) is connected with the guide wheel (2), a spring (4) for adjusting the tightness of the chain is sleeved on the upper connecting piece (1), the upper lifting chain (3) is wound and connected onto the guide wheel (2), and two ends of the upper lifting chain (3) are connected with two ends of the lower lifting hook (7) through the two hanging universal shafts (5) to form a closed circular chain; and the suspension cardan shaft (5) is provided with positioning holes (5-4) for positioning the wall body.

2. The single-chain upside-down hanging circulation elevator as claimed in claim 1, wherein: the positioning holes (5-4) are specifically designed to be waist-shaped holes or round holes.

3. The single-chain upside-down hanging circulation elevator as claimed in claim 1, wherein: the suspension universal shaft (5) comprises a first assembly (5-1) and a second assembly (5-2) which are symmetrically arranged, free ends of the first assembly (5-1) and the second assembly (5-2) are provided with U-shaped grooves, two ends of the upper suspension chain (3) and two ends of the lower suspension chain (8) are connected in the U-shaped grooves through bolt assemblies, and the adjacent ends of the first assembly (5-1) and the second assembly (5-2) are connected together through a rotary connecting piece (5-3); the positioning hole (5-4) is arranged on the first component (5-1) or the second component (5-2).

4. The single-chain upside-down hanging circulation elevator as claimed in claim 3, wherein: the first component (5-1) is rotated 360 DEG relative to the second component (5-2) about the central axis of the rotary connection (5-3).

5. The single-chain upside-down hanging circulation elevator as claimed in claim 1, wherein: the transition key on the guide wheel (2) is a five-tooth spline.

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