Elevator steel wire rope anti-off groove sheave device

Abstract

This utility model relates to the field of elevator safety technology and discloses an elevator wire rope anti-derailment sheave device. The device includes a mounting frame with a sheave mounted on it. A set of vertical plates is fixedly connected to the lower surface of the mounting frame, and a receiving box and a scraping assembly are disposed between two of the vertical plates. The scraping assembly includes a connecting plate and a row of scrapers. The row of scrapers is fixedly mounted on the upper surface of the connecting plate, and the scrapers match the rope groove on the surface of the sheave. Connecting blocks are fixedly connected to both ends of the receiving box. This device guides and limits the wire rope through the limiting groove of the limiting roller, preventing it from deviating from the groove. The scrapers can scrape away foreign objects from the rope groove of the sheave in real time, preventing foreign objects from raising the wire rope and causing it to derail. Simultaneously, the locking assembly allows for quick disassembly and assembly of the receiving box and the scraping assembly, facilitating replacement of the scraping assembly and cleaning of foreign objects inside the receiving box.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety technology, specifically to an elevator wire rope anti-derailment pulley device. Background Technology

[0002] Elevators are common vertical transportation devices in modern buildings, and their safety is crucial to the lives of people inside. During elevator operation, the proper coordination between the wire rope and the traction sheave is key to ensuring safe operation. However, in actual operation, due to factors such as elevator load, speed, and temperature, the wire rope may derail from the traction sheave, leading to dangerous situations such as elevator loss of control and weightlessness, seriously threatening the lives of passengers.

[0003] A search revealed an elevator wire rope anti-derailment device (CN 219885399 U), comprising a pulley seat, a connecting plate, a support plate symmetrically fixedly connected to the upper end of the connecting plate, a wheel rotatably connected to the inner side of the support plate, a steel rope mounted on the wheel, a positioning frame rotatably connected to the support plate, and a first support shaft with pin plates rotatably connected to both ends of the first support shaft. A clamping assembly is rotatably connected to the inner side of the pin plates. This application, through a simple structural design, effectively solves the problem of wire rope derailment from the traction wheel, enhancing the safety during elevator operation. The spring-driven clamping assembly tightly clamps the steel rope onto the wheel when the rope tension decreases, preventing the rope from detaching from the wheel and improving the stability of elevator operation. The device is easy to install and maintain, and does not damage the wire rope, reducing operating costs and maintenance difficulty.

[0004] However, the above-mentioned device still has some shortcomings in use. Dust, metal scraps, and dead insects in the elevator shaft can easily fall into the rope groove. The accumulation of foreign objects will "raise" the steel wire rope, causing the rope to deviate from the center of the groove, increasing the risk of derailment. It is also difficult to clean it quickly, making it inconvenient to use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an elevator wire rope anti-derailment pulley device, which solves the problems that dust, metal debris, and insect carcasses in the elevator shaft easily fall into the rope groove, and the accumulation of foreign objects "raises" the wire rope, causing the rope to deviate from the center of the groove, increasing the risk of derailment, and making it difficult to clean quickly and inconvenient to use.

[0006] This utility model provides the following technical solution: an elevator wire rope anti-derailment rope wheel device, including a mounting frame, a rope wheel is provided on the mounting frame, a set of vertical plates is fixedly connected to the lower surface of the mounting frame, and a receiving box and a scraping component are provided between the two vertical plates;

[0007] The scraping assembly includes a connecting plate and a row of scrapers. The row of scrapers is fixedly installed on the upper surface of the connecting plate. The scrapers match the rope grooves on the surface of the rope wheel. Connecting blocks are fixedly connected to both ends of the receiving box. The surfaces of the two vertical plates are provided with slots that match the connecting blocks and the connecting plate. Locking components are provided on the surfaces of the two vertical plates.

[0008] Preferred technical solution 1: The locking assembly includes a screw rotatably mounted on the surface of the vertical plate, a screw sleeve threaded onto the surface of the screw, a pressure plate fixedly connected to the surface of the screw sleeve, and two sets of locking rods fixedly connected to the surface of the pressure plate. Each connecting block and the connecting plate has a set of locking grooves at both ends that match the locking rods.

[0009] Preferred technical solution 2: The locking assembly further includes a set of slide rods fixedly installed on the surface of the vertical plate, and each slide rod has a sliding sleeve slidably fitted on its surface, and the sliding sleeve is fixedly connected to the corresponding pressure plate.

[0010] Preferred technical solution 3: Two protective hoses are fitted on the surfaces of both screws. The protective hoses are corrugated hoses and do not affect the movement of the screw sleeves.

[0011] Preferred technical solution four: Two sets of fixing plates are fixedly connected to the surface of the vertical plate, and a limiting roller is rotatably installed between the two vertical plates and each set of fixing plates. The surface of each limiting roller is provided with multiple limiting grooves that match the rope grooves on the surface of the rope wheel.

[0012] Preferred technical solution five: The surfaces of the two screws, the two screw sleeves, the two slide rods, and the two slide sleeves are all coated with an anti-rust coating.

[0013] Compared with the prior art, this utility model provides an elevator wire rope anti-derailment sheave device, which has the following beneficial effects: During operation, the entire device is first fixed in the designated position of the elevator by the mounting bracket, and the elevator wire rope runs normally within the rope groove on the surface of the sheave; as the wire rope drives the sheave to rotate, a row of scrapers in the scraping component precisely contacts the rope groove on the rotating sheave surface, scraping away dust, metal shavings, and other foreign objects accumulated in the rope groove in real time, preventing foreign objects from raising the wire rope and causing it to derail. The scraped foreign objects fall directly into the collection box located below the scraping component, achieving centralized collection of foreign objects; in addition, the limiting roller guides and limits the wire rope entering and leaving the sheave, preventing the wire rope from derailing. During operation, slight wobbling occurs, further reducing the risk of the wire rope slipping out of the groove. When it is necessary to clean foreign objects or maintain the scraping component, rotating the screw drives the screw sleeve to move, which in turn moves the clamping rod, causing it to disengage from the slot on the connecting block and connecting plate. This allows the receiving box and scraping component to be removed from the empty groove, facilitating the replacement of the scraping component or the cleaning of the waste stored inside the receiving box. This is convenient and quick. The device can guide and limit the wire rope through the limiting groove of the limiting roller to prevent it from slipping out of the groove. The scraper can scrape foreign objects in the rope groove of the rope wheel in real time to prevent foreign objects from raising the wire rope and causing it to slip out of the groove. At the same time, the locking component allows for quick disassembly and assembly of the receiving box and the scraping component, facilitating the replacement of the scraping component and the cleaning of foreign objects inside the receiving box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural exploded view of the present invention;

[0016] Figure 3 This is an exploded view of the locking component structure of this utility model.

[0017] In the diagram: 1. Mounting frame; 2. Rope pulley; 3. Vertical plate; 4. Material receiving box; 5. Scraping assembly; 6. Connecting plate; 7. Scraper; 8. Connecting block; 9. Empty slot; 10. Screw; 11. Screw sleeve; 12. Pressure plate; 13. Clamping rod; 14. Clamping groove; 15. Sliding rod; 16. Sliding sleeve; 17. Protective hose; 18. Fixing plate; 19. Limiting roller; 20. Limiting groove. Detailed Implementation

[0018] Please see Figure 1-3 ,

[0019] Example 1: An elevator wire rope anti-derailment device includes a mounting frame 1, a rope wheel 2 is provided on the mounting frame 1, a set of vertical plates 3 are fixedly connected to the lower surface of the mounting frame 1, and a receiving box 4 and a scraping component 5 are provided between the two vertical plates 3.

[0020] The scraping assembly 5 includes a connecting plate 6 and a row of scrapers 7. The row of scrapers 7 is fixedly installed on the upper surface of the connecting plate 6. The scrapers 7 match the rope grooves on the surface of the rope wheel 2. The two ends of the receiving box 4 are fixedly connected with connecting blocks 8. The surfaces of the two vertical plates 3 are provided with slots 9 that match the connecting blocks 8 and the connecting plate 6. The surfaces of the two vertical plates 3 are provided with locking components.

[0021] Example 2: The difference between this example and Example 1 is that the locking component includes a screw 10 rotatably mounted on the surface of the vertical plate 3, a screw sleeve 11 threaded onto the surface of the screw 10, a pressure plate 12 fixedly connected to the surface of the screw sleeve 11, and two sets of locking rods 13 fixedly connected to the surface of the pressure plate 12. Each connecting block 8 and connecting plate 6 has a set of locking grooves 14 at both ends that match the locking rods 13, which facilitates the quick installation and disassembly of the scraping component and the receiving box 4.

[0022] Example 3: The difference between this example and Example 1 is that the locking assembly further includes a set of slide rods 15 fixedly installed on the surface of the vertical plate 3. Each slide rod 15 has a sliding sleeve 16 slidably fitted on its surface, and the sliding sleeve 16 is fixedly connected to the corresponding pressure plate 12.

[0023] Example 4: The difference between this example and Example 1 is that two protective hoses 17 are fitted on the surface of each of the two screws 10. The protective hoses 17 are corrugated hoses. The protective hoses 17 do not affect the movement of the screw sleeve 11, which facilitates the protection of the screws 10.

[0024] Example 5: The difference between this example and Example 1 is that two sets of fixing plates 18 are fixedly connected to the surface of the vertical plate 3. Limiting rollers 19 are rotatably installed between the two vertical plates 3 and each set of fixing plates 18. Each limiting roller 19 has multiple limiting grooves 20 on its surface that match the rope grooves on the surface of the rope wheel 2.

[0025] Example 6: The difference between this example and Example 1 is that the surfaces of the two screws 10, the two screw sleeves 11, the two slide rods 15, and the two slide sleeves 16 are all coated with an anti-rust coating to prevent the screws 10 from rusting.

[0026] In summary, this elevator wire rope anti-derailment sheave device, during operation, firstly fixes the entire device to the designated position on the elevator using the mounting bracket 1, allowing the elevator wire rope to run normally within the rope groove on the surface of the sheave 2. As the wire rope drives the sheave 2 to rotate, a row of scrapers 7 in the scraping assembly 5 precisely engages with the rope groove on the rotating sheave 2 surface, scraping away accumulated dust, metal shavings, and other foreign objects in real time. This prevents foreign objects from raising the wire rope and causing it to derail. The scraped foreign objects fall directly into the collection box 4 located below the scraping assembly 5, achieving centralized collection. Furthermore, the limiting roller 19 guides and limits the wire rope entering and leaving the sheave 2, preventing swaying during operation and further reducing the risk of derailment. When it is necessary to clean foreign objects or maintain the scraping component 5, rotating the screw 10 drives the screw sleeve 11 to move, thereby moving the clamping rod 13. This causes the clamping rod 13 to disengage from the clamping groove 14 on the connecting block 8 and the connecting plate 6, allowing the receiving box 4 and the scraping component 5 to be removed from the empty groove 9. This facilitates the replacement of the scraping component 5 or the cleaning of the garbage stored inside the receiving box 4, making it convenient and easy. The device can guide and limit the wire rope through the limiting groove 20 of the limiting roller 19 to prevent it from deviating from the groove. The scraper 7 can scrape foreign objects from the rope groove of the rope wheel 2 in real time to prevent foreign objects from raising the wire rope and causing it to deviate from the groove. At the same time, the locking component allows for quick disassembly and assembly of the receiving box 4 and the scraping component 5, facilitating the replacement of the scraping component 5 and the cleaning of foreign objects inside the receiving box 4.

Claims

1. An elevator steel wire rope anti-drop sheave device, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a rope wheel (2), and a set of vertical plates (3) are fixedly connected to the lower surface of the mounting frame (1). A receiving box (4) and a scraping component (5) are provided between the two vertical plates (3). The scraping assembly (5) includes a connecting plate (6) and a row of scrapers (7). The row of scrapers (7) is fixedly installed on the upper surface of the connecting plate (6). The scrapers (7) match the rope grooves on the surface of the rope wheel (2). The two ends of the receiving box (4) are fixedly connected with connecting blocks (8). The surfaces of the two vertical plates (3) are provided with slots (9) that match the connecting blocks (8) and the connecting plate (6). The surfaces of the two vertical plates (3) are provided with locking components.

2. An elevator steel wire rope anti-drop sheave wheel device according to claim 1, characterized in that: The locking assembly includes a screw (10) rotatably mounted on the surface of the vertical plate (3), a screw sleeve (11) threaded onto the surface of the screw (10), a pressure plate (12) fixedly connected to the surface of the screw sleeve (11), and two sets of locking rods (13) fixedly connected to the surface of the pressure plate (12). Each end of the connecting block (8) and the connecting plate (6) is provided with a set of locking grooves (14) that match the locking rods (13).

3. An elevator steel cord anti-strip sheave wheel apparatus as defined in claim 2, wherein: The locking assembly also includes a set of slide rods (15) fixedly installed on the surface of the vertical plate (3), and each slide rod (15) is slidably fitted with a slide sleeve (16), and the slide sleeve (16) is fixedly connected to the corresponding pressure plate (12).

4. An elevator steel wire rope anti-drop sheave device according to claim 2, characterized in that: Two protective hoses (17) are fitted on the surface of each of the two screws (10). The protective hoses (17) are corrugated hoses and do not affect the movement of the screw sleeve (11).

5. An elevator steel wire rope anti-drop sheave device according to claim 1, characterized in that: Two sets of fixing plates (18) are fixedly connected to the surface of the vertical plate (3). A limiting roller (19) is rotatably installed between the two vertical plates (3) and each set of fixing plates (18). The surface of each limiting roller (19) is provided with multiple limiting grooves (20) that match the rope grooves on the surface of the rope wheel (2).

6. An elevator steel cord anti-strip sheave wheel apparatus as defined in claim 3 wherein: The surfaces of the two screws (10), the two screw sleeves (11), the two slide rods (15), and the two slide sleeves (16) are all coated with an anti-rust coating.

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