Single-drum and double-drum universal single-rope winding type hoist
By introducing a detachable rope guard plate and plastic lining into the hoist, flexible switching between single-drum and double-drum modes can be achieved, solving the efficiency and economy issues of the hoist at different stages and realizing efficient, economical operation and convenient maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHI LUOYANG HEAVY MASCH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-16
AI Technical Summary
The efficiency and economy of existing single-drum and double-drum hoists are contradictory at different stages of engineering projects, and they cannot be flexibly switched, resulting in waste of equipment resources and increased energy consumption.
Design a single-rope winding hoist that can be used in both single-drum and double-drum applications. By replacing the detachable rope baffle and plastic liner, the double-drum and single-drum modes can be reversibly switched. The hoist can operate efficiently in shallow wells by using a high-wear-resistant plastic liner and a low-power motor. Later, the hoist can be replaced with a thicker steel wire rope and a high-power motor to adapt to the heavy loads in deep wells.
It achieves efficient and economical improvements at different stages of engineering, avoids equipment idleness and energy waste, meets different load requirements, reduces power consumption, and is simple to operate and easy to maintain.
Smart Images
Figure CN224362355U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of mine hoisting machines, specifically relating to a single-rope winding hoist that is applicable to both single-drum and double-drum applications. Background Technology
[0002] Single-rope winding monodrum hoists and twin-rope hoists differ in their structural design. A monodrum hoist has only one hoisting sheave system and one wire rope to lift the load, making its structure relatively simple and suitable for deep wells with heavy loads. A twin-rope hoist, on the other hand, has two independent hoisting sheave systems, with two wire ropes each bearing the weight of the load, resulting in a more powerful lifting function. The two ropes distribute the load more evenly, making it suitable for distributed loads or balanced lifting.
[0003] In some vertical shaft excavation projects (such as mines, tunnels, and hydropower projects), the shafts are shallow and the load is small in the early stages. Twin-drum hoists can meet the needs of shallow shafts. The small rope capacity of the twin drums avoids the loss of long ropes during idle running. However, the electricity cost is high in the long run. The small-power motor is more efficient under light loads, significantly reducing energy waste and avoiding the situation of using a large motor for a small load, resulting in high efficiency. However, in the later stages of the project, heavy materials need to be lifted and deep shaft mining is required. The shafts are deep and the load is heavy. Using twin-drum hoists is inefficient. Single-drum hoists can provide more rope groove space and load capacity, adapt to the heavy load of deep shafts, concentrate power output, meet the needs of heavy lifting with a single rope, and are more economical and energy-saving. They are also easier to operate and maintain. If twin-drum hoists are removed and single-drum hoists are installed at different stages of the project, it will increase the workload of installation and commissioning to a certain extent and waste resources in equipment use. Summary of the Invention
[0004] To address the aforementioned technical problems, this utility model provides a universal single-rope winding hoist suitable for both single-drum and double-drum applications. By removing the detachable rope guard plate and replacing the plastic liner, the main drum structure can be reversibly switched between double-drum and single-drum hoist modes without requiring replacement. This overcomes the inflexibility of traditional hoists. In the initial stages of a project, the double-drum hoist meets the requirements for shallow wells and high efficiency. Later, by replacing parts, it can be used as a single-drum hoist, suitable for deep wells, heavy loads, and high efficiency requirements. It reduces energy consumption, is economical and energy-saving, and is simple to operate and easy to maintain.
[0005] The technical solution adopted in this utility model is: a single-rope winding hoist suitable for both single-drum and double-drum applications, including a main shaft assembly, a gear coupling, a base, and a motor, reducer, hydraulic station, control panel, and motor controller mounted on the base. A detachable rope guide plate is provided on the outer circumference of the drum of the main shaft assembly. The hoist can be converted into a single-drum or double-drum hoist mode by removing the rope guide plate and replacing the matching plastic liner. The detachable rope guide plate is bolted to the middle of the drum. A high-wear-resistant plastic liner and a low-power motor are installed in conjunction with the detachable rope guide plate. In double-drum hoist mode, the two drums are connected by a single-rope winding mechanism. The disassembled rope guard plate divides the area into a working drum control area and a safety drum control area. One end of the working wire rope in the working drum control area is fixed to the drum via a wire rope clamp, and the other end is connected to the hoisting container via a sheave. A brake disc is fixedly connected to the flange on the drum and equipped with a brake. One end of the safety wire rope in the safety drum control area is fixed to the drum via a clamp, and the other end is connected to the counterweight via a sheave. The safety drum control area is equipped with a brake, which is mirrored in setting with the brake in the working drum control area. In single-drum hoist mode, there is only a working drum control area, which is equipped with a general plastic lining and a high-power motor.
[0006] Specifically, the wire rope used in the single-drum single-rope hoist mode is 20-30% larger in diameter than the wire rope used in the double-drum double-rope hoist mode.
[0007] Specifically, the plastic liner and the detachable rope guard plate are connected by bolt pressing. The plastic liner has a rectangular groove on its bottom and is placed on the detachable rope guard plate. It is radially pressed and fixed by countersunk bolts. In the double-drum hoist mode, the plastic liner is disconnected and separated by the detachable rope guard plate. It is installed on the working drum control area and the safety drum control area drum respectively.
[0008] Specifically, the detachable rope guard plate includes two connecting plates and a fixed rope guard plate welded to the connecting plates. The two connecting plates are joined together along the drum and fixedly connected by welding. The connecting plates are provided with an array of circular holes evenly distributed along their surface. The drum is provided with an array of circular holes corresponding to the array of circular holes on the connecting plates. The connecting plates are fixedly connected to the drum by bolts.
[0009] The beneficial effects of this utility model are as follows: (1) The early stage of the project of this utility model can match the needs of shallow wells. It uses a double drum hoist mode and does not need to replace the main structure of the drum. By adding a removable rope baffle and replacing it with a high wear-resistant plastic liner, it matches a small power motor and a thinner wire rope. Without replacing the main drum structure, the drum is divided into a working drum control area and a safety drum control area. At this time, one wire rope works and the other wire rope plays a safety protection role. The efficiency is high, avoiding the loss of long rope idling. The long-term operation has high electricity cost. The small power motor has higher operating efficiency under light load, significantly reducing the waste of electricity and avoiding the situation of a large horse pulling a small cart.
[0010] (2) However, in the later stages of the project, it is necessary to lift heavy materials and mine deep wells. The wells are deep and the load is large. The efficiency of using double-drum hoists is low. The detachable rope guard plate is removed, and a matching thicker steel wire rope and a high-power motor are replaced to realize the reversible switching between single-drum and double-drum hoist modes. This is suitable for scenarios with limited budgets but need to comply with safety regulations, avoiding equipment idleness and waste, and is economical and energy-saving. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the double-cylinder elevator of this utility model;
[0013] Figure 3 This is a schematic diagram of the single-drum elevator of this utility model;
[0014] Figure 4 This is a top view of the detachable rope guard plate of this utility model;
[0015] Figure 5 This is a right view of the detachable rope guard plate of this utility model;
[0016] Markings in the diagram: 1. Main spindle assembly; 2. Gear coupling; 3. Electric motor; 4. Reducer; 5. Drum.
[0017] 6. Removable rope guard plate; 61. Connecting plate; 62. Fixed rope guard plate; 63. Round hole; 7. Plastic lining; 8. Working drum control area; 9. Safety drum control area; 10. Brake. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0019] like Figure 1-5As shown, a single-rope winding hoist suitable for both single-drum and double-drum operation includes a main shaft assembly 1, a gear coupling 2, a base, and a motor 3, a reducer 4, a hydraulic station, an operating console, and a motor controller mounted on the base. A detachable rope-blocking plate 6 is provided on the outer circumference of the drum 5 of the main shaft assembly 1. The hoist can be converted into a single-drum or double-drum mode by removing the rope-blocking plate 6 and replacing the matching plastic liner. The detachable rope-blocking plate 6 is bolted to the middle of the drum 5. A high-wear-resistant plastic liner (7) and a low-power motor are installed in conjunction with the detachable rope-blocking plate 6. In double-drum hoist mode, the two drums are connected by the detachable rope-blocking plate 6. The system is divided into a working drum control area 8 and a safety drum control area 9. One end of the working wire rope in the working drum control area 8 is fixed to the drum 5 via a wire rope clamp, and the other end is connected to the hoisting container via a sheave. A brake disc is fixedly connected to the flange on the drum 5 and equipped with a brake 10. One end of the safety wire rope in the safety drum control area 9 is fixed to the drum 5 via a clamp, and the other end is connected to the counterweight via a sheave. The safety drum control area 9 is equipped with a brake 10, which is mirrored in setting with the brake 10 in the working drum control area 8. In the single-drum hoist mode, there is only the working drum control area 8, which is equipped with a general plastic lining and a high-power motor.
[0020] Preferably, the wire rope used in the single-drum single-rope hoist mode is 20-30% larger in diameter than the wire rope used in the double-drum double-rope hoist mode.
[0021] Preferably, the plastic liner 7 and the detachable rope guard plate are connected by bolt pressing. The bottom of the plastic liner 7 has a rectangular groove, which is placed on the detachable rope guard plate 6 and radially pressed and fixed by countersunk bolts. In the double drum hoist mode, the plastic liner 7 is disconnected and separated by the detachable rope guard plate 6, and is installed on the working drum control area 8 and the safety drum control area 9 drum respectively.
[0022] Preferably, the detachable rope guard plate 6 includes two connecting plates 61 and a fixed rope guard plate 62 welded to the connecting plates 61. The two connecting plates 61 are joined together along the drum 5 and fixedly connected by welding. The connecting plates 61 are provided with an array of circular holes 63 evenly distributed along their surface. The drum 5 is provided with an array of circular holes (63) corresponding to the array of circular holes (63) on the connecting plates 61. The connecting plates 61 are fixedly connected to the drum 5 by bolts.
[0023] During operation, in the early stages of a project, such as shaft excavation, the initial drum hoist needs to be compatible with shallow wells and low load requirements. A double-drum hoist is needed for high-efficiency operation. A detachable rope guard plate 6 is bolted to the drum 5, fitted with a corresponding high-wear-resistant plastic liner 7, and a thinner diameter steel wire rope is installed. A small-power motor is also installed to avoid long rope idling losses and high electricity costs during long-term operation. The small-power motor is more efficient under light loads, significantly reducing energy waste and avoiding the situation of using a large motor for a small load. This ensures high efficiency. The double drum is connected by the detachable rope guard plate 6. The system is divided into a working drum control area 8 and a safety drum control area 9. One end of the working wire rope in the working drum control area 8 is fixed to the drum 5 via a wire rope clamp, and the other end is connected to the lifting container via a sheave. A brake disc is fixedly connected to the flange on the drum 5, and a brake 10 is installed thereon. One end of the safety wire rope in the safety drum control area 9 is fixed to the drum 5 via a clamp, and the other end is connected to the counterweight via a sheave. A brake 10 is installed in the safety drum control area 9, and it is mirrored in setting with the brake 10 in the working drum control area 8. The brake 10 is responsible for speed regulation and stopping.
[0024] However, in the later stages of the project, it is necessary to lift heavy materials and mine in deep wells. The wells are deep and the loads are heavy. Using a double-drum hoist is inefficient. It is suitable for single-drum hoisting operations in deep wells with heavy loads. The single-drum hoisting mode does not require changing the main structure of the drum, removing the rope guard plate and replacing the plastic lining. It is matched with a thicker steel wire rope and a high-power motor. There is only the working drum control area 8, and the brake is responsible for speed regulation and stopping.
Claims
1. A single-rope winding hoist suitable for both single-drum and double-drum applications, comprising a main shaft assembly (1), a gear coupling (2), a base, and a motor (3), a reducer (4), a hydraulic station, a control panel, and a motor controller mounted on the base, characterized in that: A detachable rope guard plate (6) is provided on the outer circumference of the drum (5) of the main shaft device (1). The single-drum hoist mode or double-drum hoist mode can be achieved by detaching the rope guard plate (6) and replacing the matching plastic liner. The detachable rope guard plate (6) is bolted to the middle of the drum (5). The high wear-resistant plastic liner (7) and a small-power motor are installed in conjunction with the detachable rope guard plate (6). In the double-drum hoist mode, the double drums are separated into a working drum control area (8) and a safety drum control area (9) by the detachable rope guard plate (6). The working wire rope of the working drum control area (8) is... One end is fixed to the drum (5) by a wire rope clamp, and the other end is connected to the lifting container by a sheave. The flange on the drum (5) is fixedly connected to a brake disc and equipped with a brake (10). One end of the safety wire rope in the safety drum control area (9) is fixed to the drum (5) by a clamp, and the other end is connected to a counterweight by a sheave. The safety drum control area (9) is equipped with a brake (10), which is mirrored in setting with the brake (10) in the working drum control area (8). In the single drum hoist mode, there is only the working drum control area (8), which is equipped with a general plastic lining and a high-power motor.
2. The single-rope winding hoist applicable to both single-drum and double-drum types according to claim 1, characterized in that: The wire rope used in the single-drum single-rope hoist mode is 20-30% larger in diameter than the wire rope used in the double-drum double-rope hoist mode.
3. The single-rope winding hoist applicable to both single-drum and double-drum types according to claim 2, characterized in that: The plastic liner (7) and the detachable rope guard plate are connected by bolt pressing. The bottom of the plastic liner (7) has a rectangular groove, which is placed on the detachable rope guard plate (6) and fixed by radial pressing with countersunk bolts. In the double drum hoist mode, the plastic liner (7) is disconnected and separated by the detachable rope guard plate (6), and is installed on the working drum control area (8) and the safety drum control area (9) drum respectively.
4. A single-rope winding hoist suitable for both single-drum and double-drum applications according to claim 3, characterized in that: The detachable rope guard plate (6) includes two connecting plates (61) and a fixed rope guard plate (62) welded to the connecting plates (61). The two connecting plates (61) are joined together along the drum (5) and fixedly connected by welding. The connecting plates (61) are provided with an array of circular holes (63) evenly distributed along their surface. The drum (5) is provided with an array of circular holes corresponding to the array of circular holes (63) on the connecting plates (61). The connecting plates (61) are fixedly connected to the drum (5) by bolts.