Elevator driven by three main engines

Abstract

The utility model provides an elevator driven by three hosts, which comprises a traction system arranged in a machine room, a lift car and a counterweight, the lift car and the counterweight are arranged in a hoistway, the traction system is respectively connected with the lift car and the counterweight, and the traction system comprises a first traction machine, a second traction machine, a third traction machine, a guide wheel, a traction steel wire rope, a first rope hitch plate and a second rope hitch plate. A first car roof wheel set and a second car roof wheel set are arranged at the top of the car, each of the first car roof wheel set and the second car roof wheel set comprises two car roof wheels, a first counterweight wheel and a second counterweight wheel are arranged at the top of the counterweight, and one end of the traction steel wire rope is fixed to the first rope hitch plate. The other end of the traction steel wire rope sequentially bypasses the first counterweight wheel, the first traction machine, the first car roof wheel set, the second traction machine, the guide wheel, the second car roof wheel set, the third traction machine and the second counterweight wheel and then is fixed to the second rope hitch plate. According to the utility model, the problem of unbalanced lifting at the moment of starting of the elevator car and the problem of inclination of the car after starting caused by unbalance loading of the car can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a three-host drive elevator. Background Art

[0002] Traditional single-host elevators are no longer suitable for large-carriage car elevators and large-tonnage freight elevators. Three-host drive elevators are needed as freight elevators. However, the problem of front-to-back imbalance of the car when starting needs to be solved. Compared with traditional single-host elevators, three-host elevators solve the problem of unbalanced lifting of the elevator car at the moment of starting and the problem of car tilting after starting caused by car eccentricity based on the use of existing hosts, which is used to meet the needs of large-tonnage freight elevators and large-carriage car elevators. Utility Model Content

[0003] The utility model aims to provide a three-host drive elevator, which can solve the problem of unbalanced lifting of the elevator car at the moment of starting and the problem of car tilting after starting caused by car overload, and meet the needs of large-tonnage freight elevators and large-car car elevators.

[0004] The utility model is realized by the following technical solutions:

[0005] A three-host drive elevator includes a traction system arranged in a machine room and a car and a counterweight arranged in a shaft, the traction system being connected to the car and the counterweight respectively, the traction system including a first traction machine, a second traction machine, a third traction machine, a guide wheel, a traction wire rope, a first rope head plate and a second rope head plate, a first car top wheel group and a second car top wheel group are arranged on the top of the car, the first car top wheel group and the second car top wheel group each include two car top wheels, a first counterweight wheel and a second counterweight wheel are arranged on the top of the counterweight, one end of the traction wire rope is fixed on the first rope head plate, and the other end of the traction wire rope is fixed on the second rope head plate after passing through the first counterweight wheel, the first traction machine, the first car top wheel group, the second traction machine, the guide wheel, the second car top wheel group, the third traction machine and the second counterweight wheel in sequence.

[0006] Furthermore, the traction system also includes a first machine beam, a second machine beam, a third machine beam and a fourth machine beam installed in the machine room and forming a rectangular structure, the first traction machine is installed on the first machine beam, the second traction machine is installed on the second machine beam, the third traction machine is installed on the third machine beam, and the first rope end plate and the second rope end plate are installed on the fourth machine beam.

[0007] Furthermore, it also includes a car guide device and a counterweight guide device, the car is connected to the car guide device for up and down movement, and the counterweight is connected to the counterweight guide device for up and down movement.

[0008] Furthermore, the car guide device includes a first guide bracket arranged on both sides of the car, the first guide bracket is provided with a first T-shaped guide rail, and is connected to the car through the first T-shaped guide rail.

[0009] Furthermore, the counterweight guiding device includes second guiding brackets arranged on both sides of the counterweight, the second guiding brackets are provided with second T-shaped guide rails, and are connected to the counterweight through the second T-shaped guide rails.

[0010] Furthermore, the counterweight is arranged on the side of the car.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: three traction machines are connected in series through steel wire ropes to achieve three-host drive, and the car is driven by the three traction machines in series. When the car is overloaded, the car will not tilt after the elevator starts due to overload, thereby solving the problem of unbalanced lifting of the elevator car at the moment of starting and the problem of car tilting after starting caused by overload, meeting the needs of large-tonnage freight elevators and large-car car elevators. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the layout diagram of the three-host drive elevator of the utility model;

[0013] Figure 2 This is a schematic diagram of the rope winding of the three-host drive elevator of the utility model;

[0014] Figure 3 This is a schematic diagram of the machine room of the utility model three-host drive elevator;

[0015] Figure 4 It is a schematic diagram of the hoistway plan of the three-host drive elevator of the utility model.

[0016] In the figure, 1-machine room, 2-hoistway, 3-car, 4-counterweight, 5-first traction machine, 6-second traction machine, 7-third traction machine, 8-guide wheel, 9-traction wire rope, 10-first rope head plate, 11-second rope head plate, 12-first car top wheel group, 13-second car top wheel group, 14-first counterweight wheel, 15-second counterweight wheel, 16-first shelf beam, 17-second shelf beam, 18-third shelf beam, 19-fourth shelf beam, 20 first guide bracket, 21-first T-shaped guide rail, 22-second guide bracket, 23-second T-shaped guide rail. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0022] See also Figures 1 to 4 , Figure 1 This is the layout diagram of the three-host drive elevator of the utility model. Figure 2 This is a schematic diagram of the rope winding of the three-host drive elevator of the utility model. Figure 3 This is a schematic diagram of the machine room of the utility model three-host drive elevator. Figure 4 It is a schematic diagram of the hoistway plan of the three-host drive elevator of the utility model. A three-host drive elevator includes a traction system arranged in a machine room 1 and a car 3 and a counterweight 4 arranged in a shaft 2. The traction system is connected to the car 3 and the counterweight 4 respectively. The traction system includes a first traction machine 5, a second traction machine 6, a third traction machine 7, a guide wheel 8, a traction wire rope 9, a first rope head plate 10 and a second rope head plate 11. The top of the car 3 is provided with a first car top wheel group 12 and a second car top wheel group 13. The first car top wheel group 12 and the second car top wheel group 13 each include two car top wheels. The top of the counterweight 4 is provided with a first counterweight wheel 14 and a second counterweight wheel 15. One end of the traction wire rope 9 is fixed on the first rope head plate 10, and the other end of the traction wire rope 9 is fixed on the second rope head plate 11 after passing through the first counterweight wheel 14, the first traction machine 5, the first car top wheel group 12, the second traction machine 6, the guide wheel 8, the second car top wheel group 13, the third traction machine 7 and the second counterweight wheel 15 in sequence.

[0023] In the utility model, after the traction wire rope 9 passes through the first pair of heavy wheels 14, the traction wheel of the first traction machine 5, the first car top wheel group 12, the traction wheel of the second traction machine 6, the guide wheel 8, the second car top wheel group 13, the traction wheel of the third traction machine 7 and the second pair of heavy wheels 15 in sequence, the two ends of the wire rope are fixed to the machine room 1 through the first rope head plate 10 and the second rope head plate 11 respectively, so that the three traction machines are connected in series through a traction wire rope 9 to achieve three-host drive, and the three traction machines are evenly arranged above the car top and used to drive the car 3. When the car 3 is overloaded, the car 3 will not tilt after the elevator starts due to the overload, thereby solving the problem of unbalanced lifting of the elevator car 3 at the moment of starting and the problem of tilting of the car 3 after starting due to the overload of the car 3, meeting the needs of large-tonnage freight elevators and large-car 3 car elevators.

[0024] In one embodiment, the traction system further comprises a first shelf beam 16, a second shelf beam 17, a third shelf beam 18 and a fourth shelf beam 19 installed in the machine room 1 and forming a rectangular structure, the first traction machine 5 is installed on the first shelf beam 16, the second traction machine 6 is installed on the second shelf beam 17, the third traction machine 7 is installed on the third shelf beam 18, and the first rope head plate 10 and the second rope head plate 11 are installed on the fourth shelf beam 19. With this arrangement, the first traction machine 5, the second traction machine 6, the third traction machine 7, the first rope head plate 10 and the second rope head plate 11 are respectively arranged on the top of the car 3, and connected to the front right part, the rear right part, the rear left part and the front left part of the car 3, ensuring that when the large car 3 is overloaded, the car 3 will not tilt after the elevator starts due to overload. Further, two groups of second car top wheel groups 13 are respectively arranged on the front and rear sides of the top of the car 3, and the two car top wheels of the same group are arranged at intervals along the left and right directions of the car 3.

[0025] In one embodiment, the three-host drive elevator of the utility model further includes a car 3 guide device and a counterweight 4 guide device, the car 3 is respectively connected with the car 3 guide device for upward and downward movement, and the counterweight 4 is respectively connected with the counterweight 4 guide device for upward and downward movement. The car 3 guide device and the counterweight 4 guide device are both installed inside, and are used to limit the moving direction of the car 3 and the counterweight 4 in the hoistway 2. In one embodiment, the car 3 guide device includes a first guide bracket 20 arranged on both sides of the car 3, and the first guide bracket 20 is provided with a first T-shaped guide rail 21, and is connected to the car 3 through the first T-shaped guide rail 21. In one embodiment, the counterweight 4 guide device includes a second guide bracket 22 arranged on both sides of the counterweight 4, and the second guide bracket 22 is provided with a second T-shaped guide rail 23, and is connected to the counterweight 4 through the second T-shaped guide rail 23.

[0026] In one embodiment, the counterweight 4 is disposed on the side of the car 3. It should be noted that the positional relationship of the counterweight 4 can be adjusted according to different actual occasions, and the positional relationship of the counterweight 4 is not limited here.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A three-host drive elevator, comprising a traction system arranged in a machine room and a car and a counterweight arranged in a hoistway, wherein the traction system is connected to the car and the counterweight respectively, and characterized in that: The traction system includes a first traction machine, a second traction machine, a third traction machine, a guide wheel, a traction wire rope, a first rope head plate and a second rope head plate. The top of the car is provided with a first car top wheel group and a second car top wheel group. The first car top wheel group and the second car top wheel group each include two car top wheels. The top of the counterweight is provided with a first counterweight wheel and a second counterweight wheel. One end of the traction wire rope is fixed on the first rope head plate, and the other end of the traction wire rope is fixed on the second rope head plate after passing through the first counterweight wheel, the first traction machine, the first car top wheel group, the second traction machine, the guide wheel, the second car top wheel group, the third traction machine and the second counterweight wheel in sequence.

2. The three-host drive elevator according to claim 1, characterized in that: The traction system also includes a first machine beam, a second machine beam, a third machine beam and a fourth machine beam installed in the machine room and forming a rectangular structure. The first traction machine is installed on the first machine beam, the second traction machine is installed on the second machine beam, the third traction machine is installed on the third machine beam, and the first rope end plate and the second rope end plate are installed on the fourth machine beam.

3. The three-host drive elevator according to claim 1, characterized in that: It also includes a car guide device and a counterweight guide device. The car is connected to the car guide device for up and down movement, and the counterweight is connected to the counterweight guide device for up and down movement.

4. The three-host drive elevator according to claim 3, characterized in that: The car guide device comprises a first guide bracket arranged on both sides of the car, the first guide bracket is provided with a first T-shaped guide rail, and is connected to the car through the first T-shaped guide rail.

5. The three-host drive elevator according to claim 3, characterized in that: The counterweight guiding device comprises second guiding brackets arranged on both sides of the counterweight, the second guiding brackets are provided with second T-shaped guide rails, and are connected to the counterweight via the second T-shaped guide rails.

6. The three-host-driven elevator according to claim 1, characterized in that: The counterweight is arranged on the side of the car.

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