Lower guide wheel of landing door of marine elevator

Abstract

The utility model relates to the field of elevator guide wheels, and discloses a lower guide wheel for a landing door of a marine elevator, which comprises a guide wheel, a bearing is arranged on the inner wall of the guide wheel, a guide wheel shaft is arranged on the inner surface of the bearing, a cleaning structure is arranged on the surface of the guide wheel, and the cleaning structure comprises a flange plate. A U-shaped frame is fixedly connected to the outer wall of the guide wheel shaft, a fixing plate is arranged on the outer side of the U-shaped frame, a cleaning brush is fixedly connected to the surface of the fixing plate, an elastic assembly is arranged on the surface of the guide wheel, a driving assembly is arranged on the surface of the guide wheel, and the outer wall of the flange plate is fixedly connected with the outer wall of the guide wheel. The elastic assembly comprises a telescopic rod, and the outer wall of the telescopic rod is sleeved with a spring. According to the elevator landing door, the cleaning structure is arranged, the possibility that impurities are attached to the surface of the guide wheel is reduced while the guide function of the guide wheel on the elevator landing door is guaranteed, and guide stability of the guide wheel is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of elevator guide wheels, in particular to the lower guide wheel of the marine elevator landing door. Background Art

[0002] With the rapid development of China's economy and the rapid progress of shipbuilding technology, the proportion of China's shipbuilding industry in the global market is increasing significantly. Especially for large ships such as container ships, the demand for marine elevators is also continuously rising. The lower guide wheel of the elevator landing door usually directly contacts the door to ensure that the landing door can move smoothly and safely along the guiding system when opening and closing. The main function of the guide wheel is to ensure that the elevator landing door moves correctly along the vertical or inclined track when opening and closing.

[0003] After retrieval, the Chinese patent publication number: CN218261470U discloses a flexible guide wheel for elevators. By setting a cleaning device, when the elevator works, the guide wheel is driven by the elevator cable to rotate and guide the elevator cable. When the guide wheel rotates, the cleaning block gradually contacts the surface of the guide wheel and wipes the dust on its surface.

[0004] In the above technical solution, when the guide wheel rotates, the cleaning block contacts the surface of the guide wheel to provide cleaning. The continuous contact may increase the frictional resistance between the guide wheel and the cleaning block, resulting in additional energy consumption. At the same time, it will accelerate the wear of both, shorten their service lives, and thus reduce the cleaning effect and guiding performance of the guide wheel. Therefore, a lower guide wheel for marine elevator landing doors is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a lower guide wheel for marine elevator landing doors, aiming to improve the problem that the lower guide wheel for marine elevator landing doors in the prior art lacks the function of providing cleaning for the guide wheel at intervals, resulting in the continuous contact between the guide wheel and the cleaning components and reducing the service lives of both.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A lower guide wheel for marine elevator landing doors, including a guide wheel, a bearing is arranged on the inner wall of the guide wheel, a guide wheel shaft is arranged on the inner surface of the bearing, a cleaning structure is arranged on the surface of the guide wheel, the cleaning structure includes a flange, a U-shaped frame is fixedly connected to the outer wall of the guide wheel shaft, a fixing plate is arranged outside the U-shaped frame, a cleaning brush is fixedly connected to the surface of the fixing plate, an elastic component is arranged on the surface of the guide wheel, and a driving component is arranged on the surface of the guide wheel.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the flange is fixedly connected to the outer wall of the guide wheel.

[0009] As a further description of the above technical solution:

[0010] The elastic component includes a telescopic rod, and a spring is sleeved on the outer wall of the telescopic rod.

[0011] As a further description of the above technical solution:

[0012] The driving component includes a cross, a small gear is fixedly connected to the outer wall of the cross, a support shaft is rotatably connected to the outer wall of the U-shaped frame, a large gear is fixedly connected to the outer wall of the support shaft, a disc is fixedly connected to the side wall of the large gear, a groove is formed on the surface of the disc, and an extrusion rod is fixedly connected to the outer wall of the fixing plate.

[0013] As a further description of the above technical solution:

[0014] One end of the telescopic rod is fixedly connected to the side of the fixing plate away from the cleaning brush, and the other end of the telescopic rod is fixedly connected to the outer wall of the U-shaped frame.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the cross is fixedly connected to the outer wall of the flange, and the small gear meshes with the large gear.

[0017] As a further description of the above technical solution:

[0018] An annular groove is formed on the side wall of the flange, and a ball is arranged inside the annular groove.

[0019] As a further description of the above technical solution:

[0020] The annular groove is located on the outer wall of the flange close to the guide wheel.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging two groups of flanges, the guiding property of the guide wheel is increased. When the guide wheel rotates, the cleaning brush provides a cleaning function for it. The elastic component cooperates with the driving component to enable the cleaning brush to contact and clean the guide wheel after the guide wheel rotates multiple circles, so that while the guide wheel ensures the guiding function for the elevator landing door, the possibility of impurities adhering to the surface of the guide wheel is reduced. During the cleaning process, the continuous contact between the cleaning brush and the guide wheel is avoided, reducing the frequency of cleaning brush replacement, and thus ensuring the stable guiding of the guide wheel.

[0023] 2. In the present utility model, by providing annular grooves in two groups of flanges, the balls are slightly convex on the surface of the flanges. The balls come into contact with the elevator landing door, converting static friction into rolling friction, ensuring the moving speed of the elevator landing door and extending the service life of the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Left view schematic diagram of the main structure of a marine elevator landing door lower guide wheel proposed by the present utility model;

[0025] Figure 2 Right view schematic diagram of the main structure of a marine elevator landing door lower guide wheel proposed by the present utility model;

[0026] Figure 3 For a marine elevator landing door lower guide wheel proposed by the present utility model Figure 2 Enlarged schematic diagram of area A;

[0027] Figure 4 Bottom view schematic diagram of the main structure of a marine elevator landing door lower guide wheel proposed by the present utility model;

[0028] Figure 5 For a marine elevator landing door lower guide wheel proposed by the present utility model Figure 4 Enlarged schematic diagram of area B.

[0029] LEGEND DESCRIPTION:

[0030] 1. Guide wheel; 2. Guide wheel shaft; 3. Bearing; 4. Flange; 5. Cross; 6. Small gear; 7. Large gear; 8. Disc; 9. Groove; 10. Support shaft; 11. U-shaped frame; 12. Extrusion rod; 13. Fixed plate; 14. Cleaning brush; 15. Telescopic rod; 16. Spring; 17. Annular groove; 18. Ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1 - 3, an embodiment provided by the present utility model: a lower guide wheel for a marine elevator door, including a guide wheel 1. A bearing 3 is provided on the inner wall of the guide wheel 1. Two sets of bearings 3 are provided inside the guide wheel 1, and the two sets of bearings 3 are symmetrically arranged with the central axis of the guide wheel 1 as the axis of symmetry. The material of the guide wheel 1 is set as tin bronze material. Tin bronze is a wear-resistant material and is suitable for occasions that bear continuous friction. Therefore, as the guide wheel 1, it can reduce wear and extend the service life. Tin bronze has relatively high mechanical strength and can bear the weight of the elevator door and the impact force during operation. The inner surface of the bearing 3 is provided with a guide wheel shaft 2. A cleaning structure is provided on the surface of the guide wheel 1. The cleaning structure includes a flange 4. Two sets of flanges 4 are provided, and the two sets of flanges 4 are mirror-symmetrically arranged with the central axis of the guide wheel 1 as the axis of symmetry. The flanges 4 on both sides of the guide wheel 1 can improve the lateral stability of the guide wheel 1, reduce the offset or vibration caused by the lateral force, and thus ensure better guiding performance of the guide wheel 1. The outer wall of the guide wheel shaft 2 is fixedly connected with a U-shaped frame 11. A fixing plate 13 is provided on the outside of the U-shaped frame 11. A cleaning brush 14 is fixedly connected to the surface of the fixing plate 13. The cleaning brush 14 cleans the surface of the guide wheel 1, reducing the risk that the guiding function is affected due to impurities adhering to the surface of the guide wheel 1. An elastic component is provided on the surface of the guide wheel 1, and a driving component is provided on the surface of the guide wheel 1.

[0033] Refer to Figures 3 - 5 , the outer wall of the flange 4 is fixedly connected with the outer wall of the guide wheel 1. The elastic component includes a telescopic rod 15. A spring 16 is sleeved on the outer wall of the telescopic rod 15. Two sets of telescopic rods 15 and springs 16 are provided, and the two sets of telescopic rods 15 and springs 16 are symmetrically arranged with the central axis of the fixing plate 13 as the axis of symmetry. The two ends of the two sets of springs 16 are respectively fixedly connected to the opposite sides of the fixing plate 13 and the U-shaped frame 11. The driving component includes a cross 5. The cross 5 provides a fixing function for the small gear 6. A small gear 6 is fixedly connected to the outer wall of the cross 5. A support shaft 10 is rotatably connected to the outer wall of the U-shaped frame 11. A large gear 7 is fixedly connected to the outer wall of the support shaft 10. A disc 8 is fixedly connected to the side wall of the large gear 7. A groove 9 is provided on the surface of the disc 8. An extrusion rod 12 is fixedly connected to the outer wall of the fixing plate 13. The extrusion rod 12 is in the depression of the groove 9 in the initial state. When the extrusion rod 12 is in the depression of the groove 9, the cleaning brush 14 is in contact with the outer wall of the guide wheel 1. One end of the telescopic rod 15 is fixedly connected to the side of the fixing plate 13 away from the cleaning brush 14, and the other end of the telescopic rod 15 is fixedly connected to the outer wall of the U-shaped frame 11. The outer wall of the cross 5 is fixedly connected with the outer wall of the flange 4. The small gear 6 meshes with the large gear 7. When the small gear 6 rotates one circle, it will drive the large gear 7 to rotate one-fourth of a circle. When the large gear 7 drives, it drives the disc 8 to rotate simultaneously.

[0034] Refer to Figure 2 and Figure 5, an annular groove 17 is formed on the side wall of the flange 4. The annular grooves 17 are formed on the opposite sides of the two flanges 4. The annular groove 17 is used for installing the rolling balls 18. A plurality of groups of rolling balls 18 are provided, and the plurality of groups of rolling balls 18 are equidistantly distributed inside the two annular grooves 17. The rolling balls 18 will be slightly convex on the outer wall of the flange 4. The rolling balls 18 contact the elevator landing door and rotate. The rolling balls 18 are arranged inside the annular groove 17, and the annular groove 17 is located on the outer wall of the flange 4 close to the guide wheel 1.

[0035] Working principle: When the guide wheel 1 guides the elevator landing door, it will rotate. The rolling balls 18 contact the elevator landing door and rotate irregularly inside the annular groove 17, so that when the flange 4 contacts the elevator landing door, the static friction is converted into rolling friction, allowing the elevator landing door to move more easily, improving the flexibility and response speed of the movement, and at the same time having a lower degree of wear, which helps to extend the service life of the flange 4. When the guide wheel 1 rotates, the small gear 6 will rotate following the guide wheel 1. The rotation of the small gear 6 will drive the large gear 7 to rotate accordingly. At the same time, the disc 8 rotates. After the large gear 7 rotates one circle, the groove 9 of the disc 8 will approach and press the pressing rod 12. After the pressing rod 12 loses the extrusion of the outer wall of the disc 8, it will be embedded in the depression of the groove 9. At this time, the telescopic rod 15 and the spring 16 will recover their elasticity and drive the fixing plate 13 to move towards the side of the guide wheel 1. The cleaning brush 14 contacts the guide wheel 1 and cleans it, thereby reducing the cleaning frequency of the cleaning brush 14 for the guide wheel 1, reducing the need to increase the replacement frequency due to the wear caused by the continuous cleaning of the cleaning brush 14, enabling the guide wheel 1 to be cleaned while improving the service life of the cleaning components.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A guide wheel under a marine elevator door, comprising a guide wheel (1), the inner wall of the guide wheel (1) being provided with a bearing (3), the inner surface of the bearing (3) being provided with a guide wheel shaft (2), characterized in that: The surface of the guide wheel (1) is provided with a cleaning structure, the cleaning structure comprising a flange (4), the outer wall of the guide wheel shaft (2) is fixedly connected to a U-shaped frame (11), a fixing plate (13) is provided on the outer side of the U-shaped frame (11), a cleaning brush (14) is fixedly connected to the surface of the fixing plate (13), an elastic component is provided on the surface of the guide wheel (1), and a driving component is provided on the surface of the guide wheel (1).

2. The lower guide wheel of the marine elevator door according to claim 1, characterized in that: The outer wall of the flange (4) is fixedly connected to the outer wall of the guide wheel (1).

3. The lower guide wheel of the marine elevator door according to claim 1, characterized in that: The elastic component comprises a telescopic rod (15), and a spring (16) is sleeved on the outer wall of the telescopic rod (15).

4. The lower guide wheel of the marine elevator door according to claim 1, characterized in that: The driving assembly comprises a cross (5), the outer wall of the cross (5) is fixedly connected to a small gear (6), the outer wall of the U-shaped frame (11) is rotatably connected to a support shaft (10), the outer wall of the support shaft (10) is fixedly connected to a large gear (7), the side wall of the large gear (7) is fixedly connected to a disk (8), a surface of the disk (8) is provided with a groove (9), and the outer wall of the fixing plate (13) is fixedly connected to an extrusion rod (12).

5. The lower guide wheel of the marine elevator door according to claim 3, characterized in that: One end of the telescopic rod (15) is fixedly connected to a side of the fixing plate (13) away from the cleaning brush (14), and the other end of the telescopic rod (15) is fixedly connected to an outer wall of the U-shaped frame (11).

6. The lower guide wheel of the marine elevator door according to claim 4, characterized in that: The outer wall of the cross (5) is fixedly connected to the outer wall of the flange (4), and the small gear (6) is meshed with the large gear (7).

7. The lower guide wheel of the marine elevator door according to claim 1, characterized in that: An annular groove (17) is formed on the side wall of the flange (4), and a ball bearing (18) is arranged inside the annular groove (17).

8. The lower guide wheel of the marine elevator door according to claim 7, characterized in that: The annular groove (17) is located on an outer wall of the flange (4) on one side close to the guide wheel (1).

Images