CN211769678U - Arched rope winding traction structure of bottom-supported 8:1 machine-room-less elevator - Google Patents

Abstract

The utility model relates to the technical field of traction of machine room-less elevators, in particular to a bow-shaped rope winding traction structure of a bottom-supporting 8:1 machine room-less elevator, comprising a car and a rope head plate assembly arranged on the top of the car and a The counterweight device on the side of the car is provided with a traction sheave, a guide wheel set on the car side, and a guide wheel set on the counterweight side above the car, and a matching pair is provided below the guide wheel set on the counterweight side. For the counterweight wheel set used in the heavy device, the bottom of the car is provided with a car bottom wheel set, and the car bottom wheel set has four sets of car bottom wheels that are parallel to each other and placed laterally on the bottom of the car. The utility model can meet the traction requirements of machine room-less freight elevators above 9 tons, so that the car is always kept in a superior balance state under large load, and the user experience is improved. Its structure is stable, the safety factor is high, and it has excellent balance. Performance and traction capacity are conducive to generating considerable economic value.

Description

The bow-shaped rope hoisting structure of the bottom support type 8:1 machine roomless elevator

technical field

The utility model relates to the technical field of traction of machine-room-less elevators, in particular to a bow-shaped rope winding traction structure of a bottom-supporting 8:1 machine-room-less elevator.

Background technique

The elevator needs to have a stable weight balance system during the operation process. The counterweight device is one of the important design links of the elevator balance system. It is related to the normal, stable and continuous operation of the elevator and is an important guarantee for the safety of the elevator operation. The main function is to balance the weight of the car relatively, so that the weight difference between the car and the counterweight can be kept within the limit during the elevator operation, so as to ensure the normal traction drive of the elevator, and the rope winding method of the elevator directly determines the elevator traction structure. on load bearing.

With the progress of society and the continuous development of industry, the elevators in life have an increasing demand for vertical transportation of goods, so the market demand for large-tonnage freight elevators is also full of prospects. For large-load machine room-less freight elevators, because the top floor needs to allocate the load-bearing device of the traction machine, etc., the wheels are often placed in the bottom of the car to solve the problem of insufficient height of the top floor. The existing machine room-less elevators are generally Adopt 2:1, 4:1 traction structure, and a small part will use 6:1 traction structure. The above structure basically meets the needs of elevators with 2 to 9 tons of machine room-less cargo, but the traction ratio of the existing winding cannot meet the requirements. Freight elevators above 9 tons are required, but due to the insufficient height of the top floor of some specific buildings and the need to load heavier goods for vertical lift, only machine room-less elevators can be used. There is also a huge challenge to the stability of the traction structure that meets the requirements of large tonnage. In order to ensure the safe operation of the elevator, it is urgent to improve the existing traction structure.

Utility model content

One of the purposes of this utility model is to aim at the defects and deficiencies of the prior art, to provide a bottom support type 8:1 with stable structure, high safety factor and strong traction capacity that can meet the requirements of machine room-less freight elevators of more than 9 tons. The bow-shaped winding rope traction structure of the machine room-less elevator.

The technical scheme of the present utility model is as follows:

The bow-shaped rope hoisting structure of the bottom support type 8:1 machine roomless elevator includes a car, a rope head plate assembly arranged on the top of the car, and a counterweight device arranged on the side of the car. A traction sheave, a car side guide wheel group, and a counterweight side guide wheel group are arranged above the car, and a counterweight wheel group used with a counterweight device is arranged below the counterweight side guide wheel group. There is a car bottom wheel set at the bottom. The traction sheave, the car side guide wheel set, the counterweight side guide wheel set, the counterweight wheel set, and the car bottom wheel set are connected by wire ropes. The front and rear of the wire rope are connected. The ends are respectively fixed on the rope head plate assembly, the car bottom wheel set has four sets of car bottom wheels that are parallel to each other and placed laterally on the car bottom, and the car side guide wheel set has four longitudinally placed cars side guide pulley, the steel wire rope goes around the first set of car bottom wheels downward and horizontally, vertically upwards around the first car side guide wheel, downwards laterally around the second set of car bottom wheels, and vertically downwards The second car-side guide pulley, the third car-side guide pulley forward and longitudinally, the third set of car-side pulleys downward and laterally, the fourth car-side guide pulley upward and longitudinally, and the downward and lateral pulley The fourth group of car wheels forms a "bow" winding structure.

Preferably, the counterweight side guide wheel set has three counterweight side guide wheels arranged longitudinally and on the same line, and the counterweight wheel set has four counterweight wheels arranged longitudinally and on the same line , the steel wire ropes in turn cross the counterweight wheel downward and bypass the counterweight side guide wheel upward to form an 8:1 traction structure.

Preferably, the rope head plate assembly includes a first rope head plate and a second rope head plate. The head plate is connected with the other end of the wire rope at the entry end of the first counterweight wheel.

Preferably, the four counterweight wheels on the counterweight wheel group are evenly arranged above the counterweight device at equal intervals, and the three counterweight side guide wheels on the counterweight side guide wheel group are evenly arranged at equal intervals Above between adjacent counterweight wheels.

Preferably, the first group of car bottom wheels, the second group of car bottom wheels, the third group of car bottom wheels, and the fourth group of car bottom wheels are symmetrically arranged on the basis of the front, rear, left, right and center lines of the car, The four counterweight wheels on the counterweight wheel set are symmetrically arranged on the basis of the front, rear, left, right and center lines of the counterweight device.

Preferably, the first group of car wheels, the second group of car wheels, the third group of car wheels, and the fourth group of car wheels are respectively composed of two left and right car wheels arranged on the same straight line.

Preferably, the traction sheave is placed between the outgoing side of the counterweight wheel set and the outgoing side of the fourth car side guide wheel, and is higher than the car side guide wheel set and the counterweight side guide wheel set.

The beneficial effects of the utility model are as follows: the bow-shaped rope winding traction structure of the bottom support type 8:1 machine room-less elevator is arranged to be a "bow" type winding structure by setting the car bottom wheel set under the car to cooperate with the counterweight side. The 8:1 traction winding structure of the guide wheel set and the counterweight wheel set can meet the traction demand of the machine room-less freight elevator above 9 tons, so that the car can always be kept in an excellent balance state under heavy load. It is helpful to improve the running stability of the car, and the application of the "bow" type structure shares the force of the adjacent groups of car bottom wheels with each other, reducing the vibration of the car before and after the car in the process of entering and exiting people and goods , to improve the user experience, its structure is stable, the safety factor is high, and it has excellent balance performance and traction ability, which is conducive to generating considerable economic value.

Description of drawings

Fig. 1 is the winding schematic diagram of the bow-shaped rope winding traction structure of the bottom support type 8 to 1 machine room-less elevator according to the embodiment of the present utility model;

2 is a schematic side view of the bow-shaped roping traction structure of the bottom support type 8 to 1 machine room-less elevator according to an embodiment of the present utility model;

Fig. 3 is the bottom bottom view of the bow-shaped roping traction structure of the bottom support type 8 to 1 machine room-less elevator according to the embodiment of the present utility model;

FIG. 4 is a schematic front view of the bow-shaped roping traction structure of the bottom bracket type 8:1 machine room-less elevator according to an embodiment of the present utility model.

Detailed ways

As shown in Fig. 1-Fig. 4, the bow-shaped rope winding traction structure of the bottom support type 8:1 machine room-less elevator in the embodiment of the present invention includes a car 1 and a rope head arranged on the top of the car 1 The plate assembly 2 and the counterweight device 3 arranged on the side of the car 1 are provided with a traction sheave 5, a car side guide wheel set 6, and a counterweight side guide wheel set 7 above the car 1. There is a counterweight wheel group 8 under the counterweight side guide wheel group 7 for use with the counterweight device 3, the bottom of the car 1 is provided with a car bottom wheel group 9, the traction sheave 5, the car side guide The wheel set 6, the counterweight side guide wheel set 7, the counterweight wheel set 8, and the car bottom wheel set 9 are connected by a wire rope 4, and the front and rear ends of the wire rope 4 are respectively fixed on the rope head plate assembly 2. The rope head plate assembly 2 includes a first rope head plate 21 and a second rope head plate 22. The first rope head plate 21 is connected with one end of the wire rope 4 at the entry end of the first set of landing wheels 90. The second rope head plate 21 The rope head plate 22 is connected with the other end of the wire rope 4 at the entry end of the first counterweight wheel 80. The said car bottom wheel set 9 has four sets of car bottom wheels parallel to each other and placed laterally on the bottom of the car. The said car side guide The wheel set 6 has four car-side guide pulleys placed longitudinally, and the steel wire ropes go around the first set of car-side pulleys 90 downward and laterally, vertically upwards around the first car-side guide pulley 60, and downward laterally. Pass through the second set of car-side pulleys 91, go around the second car-side guide pulley 61 longitudinally downward, go around the third car-side guide pulley 62 longitudinally forward, pass downward laterally around the third set of car-side pulleys 92, The fourth car-side guide wheel 63 is passed vertically upward and the fourth set of car wheels 93 is passed laterally downward to form a "bow" winding structure. By setting the car wheel set 9 under the car 1 into a "bow" Type winding structure, combined with the 8:1 traction winding structure of the counterweight side guide wheel set 7 and the counterweight wheel set 8, so as to meet the traction demand for machine roomless freight elevators above 9 tons, so that the car 1 It is always kept in an excellent balance state under heavy load, which helps to improve the running stability of the car 1 .

In this embodiment, the counterweight side guide wheel set 7 has three counterweight side guide wheels 70 arranged longitudinally and on the same straight line, and the counterweight wheel set 8 has four longitudinally arranged and on the same On the counterweight wheel 80 on the straight line, the wire rope 4 crosses the counterweight wheel 80 downward and bypasses the counterweight side guide wheel 70 in turn to form an 8:1 traction structure, which can make the counterweight device 3 run smoothly, Safe and reliable, while effectively reducing energy consumption.

In this embodiment, the four counterweight wheels 80 on the counterweight wheel group 8 are evenly arranged above the counterweight device 3 at equal intervals, and the three counterweight side guide wheels on the counterweight side guide wheel group 7 The wheels 70 are evenly arranged above the adjacent counterweight wheels 80 at equal intervals, and are used to switch the winding direction of the traction wire rope 4 by 90° to improve the stability.

In this embodiment, the first set of car wheels 90 , the second set of car wheels 91 , the third set of car wheels 92 , and the fourth set of car wheels 93 of the car wheel set 9 are connected to the car 1 The front, rear, left, and right centerlines are symmetrically arranged on the basis, and the four counterweight wheels 80 on the described counterweight wheel group 8 are symmetrically arranged on the basis of the front, rear, left, and right centerlines of the counterweight device 3. This arrangement can make the surrounding force of the car 1 evenly distributed. , the effect of smoother operation can be obtained.

In this embodiment, the first group of landing wheels 90 , the second set of landing wheels 91 , the third set of landing wheels 92 , and the fourth set of landing wheels 93 are respectively arranged on the same straight line. of the car bottom wheel.

In this embodiment, the traction sheave 5 is placed between the outgoing side of the counterweight wheel set 8 and the outgoing side of the fourth car-side guide pulley 63 , and is higher than the car-side guide wheel set 6 and the opposite The heavy-side guide wheel set 7 and the traction sheave 5 are placed between the traction structures on both sides, which is convenient for installation and maintenance of the overall traction structure.

Through the above technical solutions, the bow-shaped rope hoisting structure of the bottom bracket type 8:1 machine room-less elevator is formed by setting the car bottom wheel set 9 under the car 1 into a "bow" type winding structure, and the "bow" type structure The application of the car bottom wheel group 9 of the adjacent groups shares the force with each other, reduces the jitter of the car 1 in the process of entering and exiting people and goods, and improves the user's experience. Its structure is stable and the safety factor is high. Excellent balance of performance and hauling capacity, contributing to considerable economic value.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to Other related technical fields are similarly included in the scope of patent protection of the present invention.

Claims (7)

1. The 8 bow style of calligraphy wiring of no computer lab elevator of end support formula is compared 1 tows the structure, including car and the rope hitch plate subassembly that sets up at the car top and the counterweight who sets up at the car side, car top be equipped with traction sheave, car side guide wheelset, to heavy side guide wheelset below be equipped with the counterweight group that the cooperation counterweight used, car bottom be equipped with the sedan-chair base wheelset, traction sheave, car side guide wheelset, to heavy side guide wheelset, to counterweight group, sedan-chair base wheelset use wire rope to detour and connect, wire rope around both ends fix its characterized in that on the rope hitch plate subassembly respectively: sedan-chair bottom wheel group have four groups and be parallel to each other and transversely place the sedan-chair bottom wheel at the sedan-chair bottom, car side guide wheel group have four vertical car side guide wheels of placing, wire rope in proper order downwards transversely walk around first group sedan-chair bottom wheel, upwards vertically walk around first car side guide wheel, downwards transversely walk around second group sedan-chair bottom wheel, downwards vertically walk around second car side guide wheel, forward vertically walk around third car side guide wheel, downwards transversely walk around third group sedan-chair bottom wheel, upwards vertically walk around fourth car side guide wheel, downwards transversely walk around fourth group sedan-chair bottom wheel and form "bow" wire winding structure.

2. The bow-type roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 1, wherein: the counterweight side guide wheel group is provided with three counterweight side guide wheels which are longitudinally arranged and are on the same straight line, the counterweight wheel group is provided with four counterweight wheels which are longitudinally arranged and are on the same straight line, and the steel wire ropes sequentially cross and bypass the counterweight side guide wheels downwards and upwards to form an 8:1 traction structure.

3. The bow-type roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 2, wherein: the rope hitch plate assembly comprises a first rope hitch plate and a second rope hitch plate, the first rope hitch plate is connected with one end of a steel wire rope at the entrance end of the first group of car bottom wheels, and the second rope hitch plate is connected with the other end of the steel wire rope at the entrance end of the first counterweight wheel.

4. The bow-type roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 3, wherein: four counterweight wheels on the counterweight wheel group are uniformly distributed above the counterweight device at equal intervals, and three counterweight side guide wheels on the counterweight side guide wheel group are uniformly distributed above the adjacent counterweight wheels at equal intervals.

5. The bow-type roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 4, wherein: the first group of car bottom wheels, the second group of car bottom wheels, the third group of car bottom wheels and the fourth group of car bottom wheels of the car bottom wheel group are symmetrically arranged by taking the front center line, the rear center line, the left center line and the right center line of the car as references, and the four counterweight wheels on the counterweight wheel group are symmetrically arranged by taking the front center line, the rear center line, the left center line and the right center line of the counterweight device as references.

6. The bow-type roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 5, wherein: the first group of car bottom wheels, the second group of car bottom wheels, the third group of car bottom wheels and the fourth group of car bottom wheels are respectively composed of two car bottom wheels which are arranged on the same straight line from left to right.

7. The bow-shaped roping structure of a bottom-mounted 8-to-1 machineroom-less elevator according to claim 6, wherein: the traction wheel is arranged between the wire outlet side of the counterweight wheel set and the wire outlet side of the fourth car side guide wheel and is higher than the car side guide wheel set and the counterweight side guide wheel set.

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