WO2016192291A1

WO2016192291A1 - Balance compensation chain of full-plastic elastic flame-resistant elevator

Info

Publication number: WO2016192291A1
Application number: PCT/CN2015/093268
Authority: WO
Inventors: 魏伟; 毛亮
Original assignee: 江苏兴华胶带股份有限公司
Priority date: 2015-05-29
Filing date: 2015-10-29
Publication date: 2016-12-08
Also published as: CN104860154B; CN104860154A

Abstract

Disclosed is a balance compensation chain of a full-plastic elastic flame-resistant elevator, comprising a metal chain (3) covered by a covering layer (2). A sheath (1) is provided outside the covering layer. The metal chain (3) comprises two sub-metal chains. The two sub-metal chains are a first sub-metal chain (31) and a second sub-metal chain (32) respectively, and the second sub metal chain (32) is fixed on the first sub-metal chain (31) in a wound manner. The balance compensation chain of the elevator does not limit an ascending speed when the elevator moves up, has a large load capacity and a favored hanging perpendicularity, and is not easy to be distorted.

Description

Full plastic elastic flame retardant elevator balance compensation chain

Technical field

The invention relates to the technical field of elevator accessories, in particular to a balance compensation chain of a fully plastic elastic flame retardant elevator.

Background technique

The elevator balance compensation chain is mainly used for connecting the elevator car and the counterweight, balancing the traction rope and the weight of the accompanying cable, and is a component that balances the operation of the elevator. Generally, during the operation of the elevator, the lengths of the wire ropes on the car side and the counterweight side are constantly changing, thereby causing a change in the weight of the wire ropes on both sides of the traction sheave. When the car is at the lowest landing, the weight of the wire rope is mostly applied to the car side. When the car is at the highest landing, the weight of the wire rope is mostly applied to the counterweight side. This kind of change has little effect on the running performance of the elevator when the lift height is not large, but when it is raised to a certain height, it will seriously affect the stability of the elevator operation and endanger the safety of the passengers. For this reason, when the elevator is lifted When the height exceeds a certain height, it is necessary to set a component with a certain weight to balance the weight change caused by the height change, which is to balance the compensation chain by the elevator.

At present, there are several types of compensation chains on the market:

1. The rope wearing compensation chain is the most primitive kind of compensation chain. It can only be used for elevators with a speed of 1.75m/s or less. The structure is to insert hemp ropes in the iron chain. This kind of compensation chain is used in the process. Friction and collision occur between the chain and the chain, the noise is relatively large, and people have obvious jitter in the car. The advantage is that the price is cheap, and many elevator companies have been abandoned.

2, plastic coated compensation chain, in order to reduce the noise during the running process of the rope compensation chain, and at the same time slow down the corrosion of the iron chain, so on the basis of the rope compensation chain wrapped a layer of PVC hose, forming a plastic package Compensation chain. Compared with the stringing compensation chain, the noise compensation chain is greatly reduced in operation and more beautiful, but it still needs improvement in terms of flexibility and durability.

3, full plastic compensation chain, can be used to 6m / s high-speed elevator, the appearance of the package PVC structure, the elevator operation can achieve a smooth and quiet effect, for many large elevator companies.

For example, Chinese patent CN 103398142 A discloses a novel elevator balance compensation chain, which comprises a metal chain, characterized in that the outer part of the metal chain is wrapped with a wrapping layer, and the outer layer of the wrapping layer is provided with an outer sheath. The outer layer of the outer sheath is provided with a fibrous layer. The technical solution has the advantages that the compensation chain has high strength, good elasticity, good flexibility and the like, and maintains its softness under a low temperature environment to achieve a good balance. The compensation effect is suitable for elevators of 3 to 4 m/s, with long service life, low noise and low manufacturing cost. However, it still cannot meet the demand for flexibility, strength and elasticity of elevators which are usually at a high speed range of 6 m/s.

Summary of the invention

In order to overcome the existing high-speed operation of the elevator in the prior art, the use effect and poor performance of the elevator compensation chain will limit the lifting speed of the elevator when it rises, the load bearing load is small, the suspension verticality is not good, and the rotation is easy to be distorted. The problem is that the present invention provides a balance compensation chain for a fully plastic elastic flame retardant elevator.

The technical solution adopted by the invention is: a balance compensation chain of a fully plastic elastic flame-retardant elevator, comprising a metal chain, the metal chain is externally coated with a wrapping layer, and the outer layer of the wrapping layer is provided with a sheath, and the innovations are as follows: The metal chain is composed of two sub-metal chains, which are a first sub-metal chain and a second sub-metal chain, respectively, and the second sub-metal chain is fixed on the first sub-metal chain in a winding manner.

On the basis of the above, the first sub-metal chain is composed of several sets of chain loops which are tightly connected to each other, and each set of chain loops includes two large chain loops and one small chain loop, and each set of chain loops is one. The arrangement of the large chain ring, the one small chain ring and the one large chain ring are sequentially connected to each other.

On the basis of the above, the second sub-metal chain is composed of several sets of chain loops which are tightly connected to each other, and each set of chain loops includes 3 large chain rings and 1 small chain ring, and each set of chain rings is divided into 2 The arrangement of the large chain ring, the one small chain ring and the one large chain ring are sequentially connected to each other.

On the basis of the above, the chain loops of the first sub-metal chain are tightly connected to each other to form a chain gap A, and the ring gap A is filled with a halogen-free polymer elastic flame-retardant material.

On the basis of this, the chain loops of the second sub-metal chain are tightly connected to each other to form a chain gap B, and the ring gap B is filled with a bonding material.

Based on this, the first sub-metal chain and the second sub-metal chain are also provided with a chain connecting device.

Based on this, the chain connecting device is entirely a lateral Z-shaped structural member, and the length of the Z-shaped structural member is set to be 0.5 to 0.8 times the length between the two chain rings.

On the basis of this, the length of the Z-shaped structural member is set to be 0.6 times the length between the two chain rings.

On the basis of this, the Z-shaped two bends of the lateral Z-shaped structural member are arranged in an arc shape, and the Z-shaped junction The first end and the end of the member are also provided with a fixed connecting hook protruding outward, and the fixed connecting hook is integrally formed with the Z-shaped structural member.

Based on this, the sheath is a PVC sheath or a fiber cloth sheath.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The all-plastic elastic flame-retardant elevator balance compensation chain of the present invention, the metal chain is composed of two sub-metal chains, which are a first sub-metal chain and a second sub-metal chain, respectively, and the second sub-metal chain The winding method is fixed on the first sub-metal chain, and the conventional single metal chain is designed as a combination of two sub-metal chains, which does not limit the lifting speed of the elevator when it rises, has a large load bearing capacity, and has good hanging verticality, which is not easy. Distortion, and the quality of individual metal chains is increased, to some extent reducing time and operating costs.

(2) The balance compensation chain of the all-plastic elastic flame-retardant elevator of the present invention is also improved for the structure of the first sub-metal chain and the second sub-metal chain, for example, the first sub-metal chain is tightly connected to each other by several groups. The chain ring is composed of two large chain rings and one small chain ring, and each group of rings is closely interlocked according to the arrangement order of one large chain ring, one small chain ring and one large chain ring. Connecting; the second sub-metal chain is composed of a plurality of sets of chain loops that are tightly connected to each other, the set of chain loops comprising 3 large chain loops and 1 small chain loop, each set of loops according to 2 large chain loops, The arrangement order of one small chain ring and one large chain ring is closely connected to each other in turn, which greatly reduces the friction and collision between the chain ring and the chain ring, and basically eliminates the noise of the compensation chain during operation. And without any additional cost, the excellent noise reduction effect is achieved.

(3) The balance compensation chain of the all-plastic elastic flame-retardant elevator of the present invention, for the safety problem, the chain loops of the first sub-metal chain are tightly connected to each other to form a chain gap A, and the gap A of the chain is filled with The halogen-free polymer elastic flame-retardant material; the chain loops of the second sub-metal chain are tightly connected to each other to form a chain gap B, and the gap B of the chain is filled with a bonding material, and the design uses the chain skillfully. The existence of the ring gap, by filling a series of added materials, the compensation chain itself obtains high elasticity, high softness, through the filling of the bonding material, timely and effectively reduce the deformation of the elevator compensation chain, greatly extending the service life of the compensation chain.

(4) The balance compensation chain of the all-plastic elastic flame-retardant elevator of the present invention, the first sub-metal chain and the second sub-metal chain are also provided with a chain connecting device; specifically, the chain connecting device is a lateral Z-shaped structural member as a whole, The chain connecting device is designed as a Z-shaped structural member, mainly considering the magnitude of the stress when the connecting member is connected, and the connecting member is re-reinforced between the chains, so that the chain itself is extremely difficult to break, greatly increasing the safety factor, and Improve the stability of the compensation chain when the elevator is running; also consider the cost and performance Optimized, the length of the Z-shaped structural member is set to be 0.5 to 0.8 times the length between the two chain rings, and the length of the Z-shaped structural member is set to be 0.6 times the length between the two chain rings. It is determined by researchers in the field that the effect is best when the length is 0.6 times.

(5) The balance compensation chain of the all-plastic elastic flame-retardant elevator of the invention sets the Z-shaped two bends of the lateral Z-shaped structural member into an arc shape, increasing the tension and the tolerance of the Z-shaped structural member itself, and the arc The shape structure is more conducive to the dispersion of the pressure, and the pressure bearing effect is better. Secondly, the first end and the end of the Z-shaped structural member are further provided with a fixed connecting hook protruding outward, the fixing connecting hook and the Z-shaped structural member. One-piece molding, the setting of the connecting hook can more effectively fix the two chain loops between the phases, and the connection effect is better.

DRAWINGS

1 is a schematic structural view of a compensation chain in the prior art;

2 is a schematic view showing the overall structure of a metal chain in the present invention;

Figure 3 is a schematic view showing the structure of a first sub-metal chain of the present invention;

4 is a schematic structural view of a second sub-metal chain of the present invention;

Figure 5 is a schematic structural view of the present invention after the chain connecting device is provided;

Fig. 6 is a schematic view showing another structure of the present invention after the chain connecting device is provided.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention relates to a balance compensation chain of a fully plastic elastic flame-retardant elevator. The existing highest performance compensation chain is shown in FIG. 1 : comprising a metal chain 3, the metal chain 3 is externally coated with a wrapping layer 2, and the wrapping layer 2 The outer part is provided with a sheath 1 which can be selected as a PVC sheath or a fiber cloth sheath.

As shown in FIG. 2, the metal chain 3 of the present embodiment is composed of two sub-metal chains, which are a first sub-metal chain 31 and a second sub-metal chain 32, respectively, and the second sub-metal chain 32 is wound. The manner is fixed to the first sub-metal chain 31. In this embodiment, the conventional single metal chain is designed as a combination of two sub-metal chains, which does not limit the lifting speed of the elevator when it rises, has a large load bearing, has good suspension verticality, is not easily twisted, and has a single metal chain. The quality has been increased, to a certain extent, reduced time and operating costs.

As shown in FIG. 3, the first sub-metal chain 31 is composed of 5 sets of chain loops which are tightly connected to each other, and each set of chain rings includes 2 large chain rings and 1 small chain ring, and each set of chain rings is according to 1 large chain. Circle 311, 1 small chain ring 312 And the arrangement order of the last one large chain ring 313 is closely connected to each other in turn. As shown in FIG. 4, the second sub-metal chain 32 is composed of 5 sets of chain loops which are tightly connected to each other, and each set of chain rings includes 3 large chain rings and 1 small chain ring, and each set of chain rings is according to 2 large chains. The arrangement of the large chain ring A321 and the large chain ring B322, one small chain ring 323 and one large chain ring 324 are closely connected to each other in sequence; this design greatly reduces the relationship between the chain ring and the chain ring The friction and collision basically eliminate the noise of the compensation chain during operation, and achieve excellent noise reduction without any additional cost.

As shown in FIG. 3, the chain loops of the first sub-metal chain 31 are tightly connected to each other to form a chain gap A314, and the ring gap A314 is filled with a halogen-free polymer elastic flame-retardant material. As shown in FIG. 4, the chain loops of the second sub-metal chain 32 are tightly connected to each other to form a chain gap B325, which is filled with a bonding material; skillfully utilizing the existence of the chain gap, filling A series of added materials make the compensation chain itself obtain high elasticity and high softness. Through the filling of the bonding material, the deformation of the elevator compensation chain can be reduced in time and effectively, and the service life of the compensation chain is greatly extended.

Example 2

As shown in FIG. 5, on the basis of the first embodiment, the first sub-metal chain 31 and the second sub-metal chain 32 of the embodiment are further provided with a chain connecting device.

Specifically, as shown in FIG. 5, the chain connecting device is entirely a lateral Z-shaped structural member 4, and the length of the Z-shaped structural member 4 is set to be 0.5 to 0.8 times the length between the two chain links between the phases; preferably, The length of the Z-shaped structural member 4 is set to be 0.6 times the length between the two chain loops between the phases. The chain connecting device is designed as a Z-shaped structural member, mainly considering the magnitude of the stress when the connecting member is connected, and the connecting member is re-reinforced between the chains, so that the chain itself is extremely difficult to break, greatly increasing the safety factor, and Improve the stability of the compensation chain when the elevator is running; also consider the cost and performance optimization, the length of the Z-shaped structural member is set to 0.5 to 0.8 times the length between the two chain rings between the phases, in addition, the Z-shaped structural member The length is set to 0.6 times the length between the two chain loops, and the effect is best when the length is 0.6 times as determined by researchers in the field.

As shown in FIG. 6 , the Z-shaped two bends of the lateral Z-shaped structural member 4 are arranged in an arc shape, and the first end and the end of the Z-shaped structural member 4 are further provided with a fixed connecting hook 51 protruding outward. The fixed connection hook 51 is integrally formed with the Z-shaped structural member 4. In this embodiment, the Z-shaped two bends of the lateral Z-shaped structural member are arranged in an arc shape, which increases the tension and the tolerance of the Z-shaped structural member itself, and the curved structure is more favorable for the dispersion of the pressure, and is better. Pressure bearing effect; secondly, the first end and the end of the Z-shaped structural member are also provided with an outward convex The fixed connecting hook and the fixed connecting hook are integrally formed with the Z-shaped structural member, and the setting of the connecting hook can more effectively fix the two chain loops between the phases, and the connecting effect is better.

The Z-shaped structural member 4 is made of an elastic material, for example, can be made of a spring. After the Z-shaped structural member is placed in the correct position, the front end and the tail end of the Z-shaped structural member can be bent and fixed, and if The connecting hook is also provided, and the fixed connecting hook 51 can be bent and fixed, which is simple, effective, convenient and practical.

The above description shows and describes a preferred embodiment of the present invention. As described above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as being Combinations, modifications, and environments are possible, and can be modified by the teachings of the above teachings or related art within the scope of the inventive concept described herein. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims.

Claims

An all-plastic elastic flame-retardant elevator balance compensation chain comprises a metal chain, the metal chain is externally coated with a wrapping layer, and the wrapping layer is externally provided with a sheath, wherein the metal chain is composed of two sub-metal chains The two sub-metal chains are respectively a first sub-metal chain and a second sub-metal chain, and the second sub-metal chain is fixed on the first sub-metal chain in a winding manner.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1, wherein the first sub-metal chain is composed of a plurality of sets of chain rings that are tightly connected to each other, and each set of chain rings comprises two large chains. The chain ring and one small chain ring, each set of chain rings are closely connected to each other in the order of one large chain ring, one small chain ring and one large chain ring.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1, wherein the second sub-metal chain is composed of a plurality of sets of chain rings that are tightly connected to each other, and each set of chain rings comprises three large chains. The chain ring and one small chain ring, each set of chain rings are closely connected to each other in the order of 2 large chain rings, 1 small chain ring and 1 large chain ring.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1 or 2, wherein the chain links of the first sub-metal chain are tightly connected to each other to form a chain gap A, and the chain gap A It is filled with a halogen-free polymer elastic flame retardant material.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1 or 3, wherein the chain links of the second sub-metal chain are tightly connected to each other to form a chain gap B, and the chain gap B Filled with a bonding material.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1, wherein the first sub-metal chain and the second sub-metal chain are further provided with a chain connecting device.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 6, wherein the chain connecting device is a lateral Z-shaped structural member, and the length of the Z-shaped structural member is set to be the two of the phases. The length between the chain rings is 0.5 to 0.8 times.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 7, wherein the length of the Z-shaped structural member is set to be 0.6 times the length between the two chain rings.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 7, wherein the Z-shaped two bends of the lateral Z-shaped structural member are arranged in an arc shape, and the front end of the Z-shaped structural member is The ends are also provided with a fixing connecting hook which protrudes to the outside, and the fixed connecting hook is integrally formed with the Z-shaped structural member.
The all-plastic elastic flame-retardant elevator balance compensation chain according to claim 1, wherein the sheath is a PVC sheath or a fiber cloth sheath.