A machine room-less goods lift arrangement

By optimizing the traction ratio of the machine room-less freight elevator to 4:1, the wire rope winding method and guide rail system design have solved the needs of large logistics and warehousing units for deep cars and high loads, and achieved smooth operation and load increase of the freight elevator.

CN224377404UActive Publication Date: 2026-06-19SHANGHAI EDUNBURGH ELEVATOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI EDUNBURGH ELEVATOR CO LTD
Filing Date
2025-02-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing freight elevators are insufficient to meet the requirements of deep car and high rated load in large logistics and warehousing units, resulting in inadequate transportation capacity.

Method used

The design employs a wire rope winding method with a traction ratio of 4:1 and a guide rail system. It combines the traction system, counterweight system, car system, safety linkage system, and guide wheel system to optimize the guide rail layout and improve load-bearing capacity.

Benefits of technology

With the same motor power, the rated load capacity of the freight elevator has been increased, ensuring smoother operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of inorganic room freight elevator arrangement structure, comprising: traction system, counterweight system, car system, safety linkage system, guide rail and guide rail support system and guide wheel system, car system includes car bottom wheel, traction system includes bearing beam, bearing beam is installed on hoistway upper bearing wall, bearing beam is installed with tractor, counterweight side guide wheel, counterweight rope head mounting device, car rope head mounting device, speed limiter mounting device and steel wire rope.The utility model adopts the structure arrangement mode of 4:1 of traction ratio, because the car depth of freight elevator is deeper, this 4:1 arrangement structure steel wire rope can hold the two sides of car bottom, than the structure of 2:1 of traction ratio only holds the middle operation of car bottom, more stable, under the same motor power, the structure of 4:1 of traction ratio can improve the rated load capacity of elevator.
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Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, specifically to a machine room-less freight elevator layout structure. Background Technology

[0002] Freight elevators are lifting devices used for transporting goods, primarily addressing the vertical transport of goods. They are widely used in commerce, warehousing, and logistics industries. With continuous economic development, the requirements for freight elevators are increasing, especially for large logistics and warehousing units. To improve transport capacity, they generally require forklifts to enter the elevators, resulting in deeper cabins and greater rated load capacity.

[0003] Therefore, we propose a machine room-less freight elevator layout structure to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a machine room-less freight elevator layout structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine room-less freight elevator layout structure, comprising: a traction system, a counterweight system, a car system, a safety linkage system, a guide rail and guide rail support system, and a guide wheel system, wherein the car system includes car bottom wheels;

[0006] The traction system includes a load-bearing beam, which is installed on the upper load-bearing wall of the hoistway. The load-bearing beam is equipped with a traction machine, a counterweight side guide wheel, a counterweight rope end mounting device, a car rope end mounting device, a speed limiter mounting device, and a wire rope.

[0007] The counterweight system includes a counterweight device, and two counterweight wheels are mounted on the upper part of the counterweight device;

[0008] The guide wheel system consists of a car-side guide device and a car-side guide wheel, with two car-side guide wheels installed on both sides of the car-side guide device.

[0009] One end of the wire rope is installed on the counterweight rope head mounting device, and the other end goes down around the first adjacent counterweight pulley, then up around the counterweight side guide pulley, then down around the second adjacent counterweight pulley, then up around the traction machine, then down around the first set of car bottom pulleys, then up around the two car side guide pulleys on the car side guide device, then down around the second set of car bottom pulleys and is fixed on the car rope head mounting device, forming a wire rope winding method with a traction ratio of 4:1.

[0010] Preferably, the car system consists of a car frame and a car floor. The car is installed on the car frame, and car floor wheel beams are installed on both sides of the middle of the car floor. Car floor wheels are installed on both sides of the car floor wheel beams, and safety clamps are installed on the lower beam of the car frame.

[0011] Preferably, the safety clamp and the speed limiter on the speed limiter mounting device are linked to form a safety linkage system.

[0012] Preferably, the guide rail system consists of counterweight guide rails, car guide rails, guide rail main brackets, and car side guide rail brackets. The counterweight guide rails are installed inside the guide rail main brackets, and the car guide rails are installed on the outside of the guide rail main brackets, sharing a common set of guide rail main brackets.

[0013] Preferably, the large guide rail bracket is installed and fixed on the shaft wall, and another set of car guide rails is installed on the car side guide rail bracket, which is installed and fixed on the shaft wall.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The traction ratio of 4:1 is adopted. Because the car of the freight elevator is relatively deep, the steel wire rope of this 4:1 arrangement can be wrapped around both sides of the car bottom, which is more stable than the traction ratio of 2:1 structure which only wraps around the middle of the car bottom. Under the same motor power, the traction ratio of 4:1 structure can improve the rated load capacity of the elevator. Attached Figure Description

[0016] Figure 1 This is a plan view of the shaft layout of this utility model;

[0017] Figure 2 This is a schematic diagram of the car bottom wheel structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the load-bearing beam structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the counterweight wheel structure in this utility model.

[0020] In the diagram: 1. Hoistway; 2. Car; 3. Car side guide device; 4. Car side guide rail bracket; 5. Car side guide wheel; 6. Car bottom wheel; 7. Traction machine; 8. Counterweight wheel; 9. Counterweight side guide wheel; 10. Counterweight device; 11. Guide rail main bracket; 12. Load-bearing beam; 13. Car bottom wheel beam; 14. Car frame; 15. Car bottom; 16. Counterweight rope end mounting device; 17. Car rope end mounting device; 18. Speed ​​limiter mounting device. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a machine room-less freight elevator layout structure, including: a traction system, a counterweight system, a car system, a safety linkage system, a guide rail and guide rail support system, and a guide wheel system.

[0023] The traction system includes a load-bearing beam 12, which is installed on the upper load-bearing wall of the hoistway 1. The load-bearing beam 12 is equipped with a traction machine 7, a counterweight side guide wheel 9, a counterweight rope head mounting device 16, a car rope head mounting device 17, and a speed limiter mounting device 18.

[0024] The counterweight system is used to balance the weight of the car system. The counterweight system includes a counterweight device 10. Two counterweight wheels 8 are installed on the upper part of the counterweight device 10. They can move up and down reciprocally with the counterweight guide rail. The counterweight is arranged in a double row, which can reduce the weight of a single counterweight block and make it easier for elevator installers to handle and install on site.

[0025] The car system consists of a car frame 14 and a car bottom 15. The car 2 is installed on the car frame 14. Car bottom wheel beams 13 are installed on both sides of the middle of the car bottom 15. Car bottom wheels 6 are installed on both sides of the car bottom wheel beams 13. A safety clamp is installed on the lower beam of the car frame 14. The safety clamp is linked with the speed limiter on the speed limiter mounting device 18 to form a safety linkage system.

[0026] The guide rail system consists of counterweight guide rails, car guide rails, guide rail main brackets 11, and car side guide rail brackets 4. The counterweight guide rails are installed inside the guide rail main brackets 11, and the car guide rails are installed on the outside of the guide rail main brackets 11. They share a common set of guide rail main brackets 11, which are fixed to the wall of the hoistway 1. Another set of car guide rails is installed on the car side guide rail brackets 4, which are fixed to the wall of the hoistway 1.

[0027] The guide wheel system consists of a car-side guide device 3 and a car-side guide wheel 5, with the two car-side guide wheels 5 respectively installed on both sides of the car-side guide device 3.

[0028] The method for winding steel wire rope is as follows:

[0029] One end of the wire rope is installed on the counterweight rope head mounting device 16, and the other end goes down around the adjacent first counterweight pulley 8, then up around the counterweight side guide pulley 9, then down around the adjacent second counterweight pulley 8, then up around the traction machine 7, then down around the first set of car bottom pulleys 6, then up around the two car side guide pulleys 5 on the car side guide device 3, then down around the second set of car bottom pulleys 6 and is then fixed on the car rope head mounting device 17, forming a wire rope winding method with a traction ratio of 4:1.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machine-room-less freight elevator layout structure, comprising: Traction system, counterweight system, car system, safety linkage system, guide rail and guide rail support system and guide wheel system, the car system includes car bottom wheels (6); The traction system is characterized by the following features: the traction system includes a load-bearing beam (12), which is installed on the upper load-bearing wall of the hoistway (1). The load-bearing beam (12) is equipped with a traction machine (7), a counterweight side guide wheel (9), a counterweight rope head installation device (16), a car rope head installation device (17), a speed limiter installation device (18), and a wire rope. The counterweight system includes a counterweight device (10), and two counterweight wheels (8) are installed on the upper part of the counterweight device (10); The guide wheel system consists of a car-side guide device (3) and a car-side guide wheel (5), with the two car-side guide wheels (5) installed on both sides of the car-side guide device (3); One end of the wire rope is installed on the counterweight rope head installation device (16), and the other end goes down around the adjacent first counterweight wheel (8), then up around the counterweight side guide wheel (9), then down around the adjacent second counterweight wheel (8), then up around the traction machine (7), then down around the first set of car bottom wheels (6), then up around the two car side guide wheels (5) on the car side guide device (3), then down around the second set of car bottom wheels (6) and is then fixed on the car rope head installation device (17), forming a wire rope winding method with a traction ratio of 4:

1.

2. The machine-room-less freight elevator layout structure according to claim 1, characterized in that, The car system consists of a car frame (14) and a car bottom (15). The car (2) is installed on the car frame (14). Car bottom wheel beams (13) are installed on both sides of the middle of the car bottom (15). Car bottom wheels (6) are installed on both sides of the car bottom wheel beams (13). Safety clamps are installed on the lower beam of the car frame (14).

3. The machine-room-less freight elevator layout structure according to claim 2, characterized in that, The safety clamp and the speed limiter on the speed limiter mounting device (18) form a safety linkage system.

4. The machine-room-less freight elevator layout structure according to claim 1, characterized in that, The guide rail system consists of counterweight guide rails, car guide rails, guide rail brackets (11), and car side guide rail brackets (4). The counterweight guide rails are installed inside the guide rail brackets (11), and the car guide rails are installed on the outside of the guide rail brackets (11), sharing a common set of guide rail brackets (11).

5. The machine-room-less freight elevator layout structure according to claim 4, characterized in that, The guide rail bracket (11) is installed and fixed on the wall of the shaft (1), and another set of car guide rails is installed on the car side guide rail bracket (4), which is installed and fixed on the wall of the shaft (1).