Cast roller casting for elevator

Abstract

The utility model relates to the technical field of elevator rollers, in particular to a cast roller casting for an elevator, which comprises a roller body, a bearing is arranged in the middle of the roller body, a threaded groove is arranged on the front side of the bearing, and a first circular through groove is arranged between the inner wall of the rear side of the threaded groove and an inner cavity of the bearing. And the oil injection mechanism comprises a circular connecting block arranged in the threaded groove, an injection groove is formed in the front side of the circular connecting block, and a second circular through groove is formed in the inner wall of the rear side of the injection groove. The needle tube of the injection needle is inserted into the injection groove, and the annular connecting plate is pushed backwards, so that the annular connecting cylinder and the sealing plate can be driven to move backwards synchronously, a plurality of injection ports are moved into the bearing for oil injection operation, and after oil injection is completed, the sealing plate can be reset automatically through the acting force of the spring.

Description

Technical Field

[0001] This utility model relates to the field of elevator roller technology, and in particular to a cast elevator roller casting. Background Technology

[0002] Elevator roller castings are elevator roller components made through casting processes. They have the characteristics of high strength, high hardness, wear resistance and corrosion resistance. They are key load-bearing and guiding components in the elevator system and are crucial for the smooth operation of the elevator and the safety of passengers.

[0003] Currently, when maintaining elevator rollers, it is usually necessary to add lubricating oil to the bearings inside the rollers to ensure smooth operation and extend their service life. However, the existing elevator roller casting structure requires the entire bearing to be removed first, and then lubricating oil to be added. The whole process is quite cumbersome and increases the workload of maintenance personnel. Therefore, to solve this problem, we need to consider designing a cast elevator roller. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cast elevator roller.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cast elevator roller includes a roller body with a bearing in the middle. The bearing has a threaded groove on its front side, and a first circular through-groove between the rear inner wall of the threaded groove and the bearing's inner cavity. An oil injection mechanism includes a circular connecting block disposed within the threaded groove. The circular connecting block has an injection groove on its front side, and a second circular through-groove on the rear inner wall of the injection groove. An annular connecting plate that can move back and forth is disposed within the injection groove. An annular connecting cylinder is fixedly connected to the rear side of the annular connecting plate. The annular connecting cylinder has a circumferentially shaped injection port that mates with the annular connecting plate. The rear end of the annular connecting cylinder passes through the second circular through-groove and is fixedly connected to a sealing plate. The rear end of the annular connecting plate is elastically connected to the rear inner wall of the injection groove via a spring.

[0007] To better achieve the above objectives, the present invention adopts a further technical solution: the annular connecting plate is slidably connected to the inner wall of the injection groove, and the annular connecting cylinder is slidably connected to the second circular through groove.

[0008] To better achieve the above objectives, the present invention adopts a further technical solution: the outer side of the circular connecting block is provided with threads, and the circular connecting block is threadedly connected to the threaded groove.

[0009] To better achieve the above objectives, the present invention adopts a further technical solution: a first sealing ring is provided on the rear side of the circular connecting block, and the rear side of the first sealing ring is in contact with the rear inner wall of the threaded groove.

[0010] To better achieve the above objectives, the present invention adopts a further technical solution: a second sealing ring is provided on the front side of the sealing plate, and the front side of the second sealing ring is fitted with the rear side of the circular connecting block.

[0011] The beneficial effects of this utility model are as follows: by inserting the syringe into the injection groove and pushing the annular connecting plate backward, the annular connecting cylinder and the sealing plate can be moved backward synchronously, thereby moving multiple injection ports into the bearing for oil injection. After oil injection, the sealing plate can be automatically reset by the force of the spring. With the help of the second sealing ring, the sealing performance of the entire oil injection mechanism can be ensured. The entire oil injection process is convenient and quick. Compared with disassembling the bearing for oil injection, it effectively reduces the maintenance workload of maintenance personnel. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a cast elevator roller part proposed in this utility model;

[0013] Figure 2 for Figure 1 Partial structural sectional view;

[0014] Figure 3 for Figure 2 Enlarged view of point A;

[0015] Figure 4 This is a schematic diagram of the oil injection mechanism;

[0016] Figure 5 for Figure 4 A sectional view.

[0017] In the figure: 1 Roller body, 2 Bearing, 3 Threaded groove, 4 First circular through groove, 5 Circular connecting block, 6 Injection groove, 7 Annular connecting plate, 8 Annular connecting cylinder, 9 Injection port, 10 Sealing plate, 11 Spring, 12 First sealing ring, 13 Second sealing ring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Reference Figures 1-5A cast elevator roller includes a roller body 1, a bearing 2 disposed in the middle of the roller body 1, a threaded groove 3 on the front side of the bearing 2, a first circular through groove 4 between the rear inner wall of the threaded groove 3 and the inner cavity of the bearing 2, and an oil injection mechanism. The oil injection mechanism includes a circular connecting block 5 disposed in the threaded groove 3, the outer side of the circular connecting block 5 being threaded, the circular connecting block 5 being threadedly connected to the threaded groove 3, an injection groove 6 on the front side of the circular connecting block 5, a second circular through groove on the rear inner wall of the injection groove 6, an annular connecting plate 7 movable back and forth disposed in the injection groove 6, the annular connecting plate 7 being slidably connected to the inner wall of the injection groove 6, and an annular connecting cylinder 8 fixedly connected to the rear side of the annular connecting plate 7, the annular connecting cylinder 8 having a circumferentially shaped groove... The injection port 9, which is matched with the annular connecting plate 7, moves backward by moving the annular connecting plate 7, thereby connecting the interior of the annular connecting cylinder 8 and the bearing 2, thus realizing the subsequent oil injection operation. The rear end of the annular connecting cylinder 8 passes through the second circular through groove. The annular connecting cylinder 8 and the second circular through groove are slidably connected and fixedly connected with a sealing plate 10. The rear end of the annular connecting plate 7 is elastically connected to the rear inner wall of the injection groove 6 by a spring 11. A first sealing ring 12 is provided on the rear side of the circular connecting block 5. The rear side of the first sealing ring 12 is in contact with the rear inner wall of the threaded groove 3. A second sealing ring 13 is provided on the front side of the sealing plate 10. The front side of the second sealing ring 13 is in contact with the rear side of the circular connecting block 5. Both the first sealing ring 12 and the second sealing ring 13 can improve the sealing performance of the entire device.

[0020] When lubricating oil needs to be added to the bearing 2, the maintenance personnel can align the needle tube of the injection needle filled with lubricating oil into the injection groove 6 and insert it. During the insertion process, the needle tube will push the annular connecting plate 7 backward, causing the annular connecting cylinder 8, sealing plate 10, and second sealing ring 13 to move backward synchronously and pass through the first circular through groove 4 into the bearing 2. At this time, the spring 11 will be compressed. When multiple injection ports 9 move into the bearing 2, the maintenance personnel can use the injection needle to add lubricating oil to the bearing 2. The lubricating oil will flow through the inner side of the annular connecting plate 7 → the inner side of the annular connecting cylinder 8 → multiple injection ports 9. The oil flows into the bearing 2 through the injection port 9. After injection, the operator moves the injection needle forward and removes it. At this time, due to the force of the spring 11, the annular connecting plate 7 will move forward automatically, driving the annular connecting cylinder 8, the sealing plate 10, and the second sealing ring 13 to move forward synchronously. Multiple injection ports 9 will move forward and reset to close the connection between the annular connecting cylinder 8 and the inside of the bearing 2. At the same time, the second sealing ring 13 will apply a sealing effect. The whole oil injection process is convenient and quick, reducing the workload of maintenance. The operator can inject lubricating oil while rotating the bearing 2, which ensures that the lubricating oil flows into the entire interior of the bearing 2, improving the efficiency of oil injection.

Claims

1. A cast elevator roller, characterized in that, include: Roller body (1), bearing (2) is provided in the middle of the roller body (1), threaded groove (3) is provided on the front side of the bearing (2), and a first circular through groove (4) is provided between the rear inner wall of the threaded groove (3) and the inner cavity of the bearing (2); oil injection mechanism, the oil injection mechanism includes a circular connecting block (5) provided in the threaded groove (3), an injection groove (6) is provided on the front side of the circular connecting block (5), a second circular through groove is provided on the rear inner wall of the injection groove (6), an annular connecting plate (7) that can move back and forth is provided in the injection groove (6), an annular connecting cylinder (8) is fixedly connected to the rear side of the annular connecting plate (7), a plurality of injection ports (9) that cooperate with the annular connecting plate (7) are provided on the annular connecting cylinder (8) in a circumferential shape, the rear end of the annular connecting cylinder (8) passes through the second circular through groove and is fixedly connected to a sealing plate (10), and the rear end of the annular connecting plate (7) and the rear inner wall of the injection groove (6) are elastically connected by a spring (11).

2. The cast elevator roller according to claim 1, characterized in that, The annular connecting plate (7) is slidably connected to the inner wall of the injection groove (6), and the annular connecting cylinder (8) is slidably connected to the second circular through groove.

3. The cast elevator roller according to claim 1, characterized in that, The outer side of the circular connecting block (5) is provided with threads, and the circular connecting block (5) is threadedly connected to the threaded groove (3).

4. The cast elevator roller according to claim 1, characterized in that, The circular connecting block (5) is provided with a first sealing ring (12) on its rear side, and the rear side of the first sealing ring (12) is in contact with the rear inner wall of the threaded groove (3).

5. A cast elevator roller according to claim 1, characterized in that, The front side of the sealing plate (10) is provided with a second sealing ring (13), and the front side of the second sealing ring (13) is attached to the rear side of the circular connecting block (5).

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