Polyurethane rubber roller for mining machinery

Abstract

The utility model relates to the technical field of polyurethane rubber covered rollers, in particular to a polyurethane rubber covered roller for mining machinery, which comprises a main shaft, a polyurethane ring layer is arranged outside the main shaft, a through groove is arranged inside the main shaft, a two-way screw rod is arranged inside the through groove, an extrusion component is arranged outside the main shaft, and the two-way screw rod is arranged inside the extrusion component. The extrusion assembly is used for installing polyurethane ring layers with different diameters, the extrusion assembly comprises moving sleeves, connecting rods and expansion plates, the moving sleeves are symmetrically installed outside the main shaft, the connecting rods are symmetrically installed outside the moving sleeves, and the expansion plates are installed at the ends, away from the moving sleeves, of the connecting rods; compared with an existing polyurethane rubber roller for mining machinery, the polyurethane rubber roller for the mining machinery has the advantages that the main shaft can be matched with the polyurethane ring layers with different sizes through the design of the connecting rods and the expansion plates, and the overall practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane rubber rollers, in particular to a polyurethane rubber roller for mining machinery. Background Technique

[0002] A polyurethane rubber roller is a roller-shaped product with a metal or other material as the core and polyurethane rubber coated on the outside. The polyurethane rubber roller has good chemical properties, especially good solvent resistance to diesel, gasoline, lubricating oil, kerosene, alcohol and salt water solutions. The polyurethane rubber roller has excellent physical properties. The rubber roller will not harden or age after long-term use, and has good tear resistance, rebound performance and excellent wear resistance.

[0003] Hydraulic hoses are often used in mining machinery. The hydraulic hoses are used to transport high-pressure liquids and hydraulic transmissions. During the transportation process, they need to move back and forth. The hydraulic hoses are driven to move back and forth by the rotation of rubber wheels. When using polyurethane for a long time, it is inevitable to cause damage. In the existing technology, the main shaft needs to be placed in a casting mold, and then the polyurethane material is poured into the mold to produce a new polyurethane ring layer. This operation is convenient and fast. However, when replacing the polyurethane, the main shaft needs to be replaced together, resulting in an increase in cost. Moreover, with different working scenarios, when different sizes of polyurethane are required, and the main shaft and polyurethane are used in combination, different main shafts and polyurethanes need to be purchased, further greatly increasing the cost.

[0004] Therefore, for the improvement of the existing polyurethane rubber roller for mining machinery, it is particularly important to design a new type of polyurethane rubber roller for mining machinery to solve the above technical defects and improve the practicality of the overall polyurethane rubber roller for mining machinery. Content of the Utility Model

[0005] The purpose of the utility model is to provide a polyurethane rubber roller for mining machinery to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A polyurethane rubber roller for mining machinery includes a main shaft. A polyurethane ring layer is installed outside the main shaft. A through groove is opened inside the main shaft. A bidirectional lead screw is installed inside the through groove. An extrusion assembly is installed outside the main shaft;

[0008] The extrusion assembly is used for installing polyurethane ring layers with different diameters.

[0009] As a preferred scheme of the utility model, the extrusion assembly includes a moving sleeve, a connecting rod and an extension plate. The moving sleeves are symmetrically installed outside the main shaft. The connecting rods are symmetrically installed outside the moving sleeves. The extension plate is installed at one end of the connecting rod away from the moving sleeve.

[0010] As a preferred solution of the present utility model, a rotating frame is installed outside the moving sleeve, and the connecting rod is connected to the moving sleeve through the rotating frame.

[0011] As a preferred solution of the present utility model, a connecting block is installed inside the extension plate, and the extension plate is connected to the moving sleeve through the connecting rod.

[0012] As a preferred solution of the present utility model, a threaded sleeve is installed at the middle of the inside of the moving sleeve, a sliding groove is formed on the surface of the main shaft, the threaded sleeve is connected to the bidirectional lead screw through the sliding groove, and caps are installed at both ends of the main shaft.

[0013] As a preferred solution of the present utility model, a square groove is formed inside the extension plate, sliding blocks are symmetrically installed inside the square groove, a spring is installed between the sliding blocks, a linkage rod is installed at the top of the sliding block, and the linkage rod is designed in a cross structure, and an extension plate is installed at the end of the linkage rod away from the sliding block.

[0014] As a preferred solution of the present utility model, a clamping rail is installed outside the polyurethane ring layer, the clamping rail is designed in a horn shape, and the clamping rails are distributed at equal intervals.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] In the present utility model, by sleeving the polyurethane ring layer outside the main shaft and rotating the bidirectional lead screw, the bidirectional lead screw can rotate inside the main shaft. At the same time, through the thread reaction with the threaded sleeve, the threaded sleeve is driven to rotate. Then, through the design of the sliding groove, the threaded sleeve is limited, so that the threaded sleeve drives the two moving sleeves to approach each other, thereby enabling the connecting rod to rotate inside the rotating frame and the connecting block, and enabling the connecting rod to arch outwards synchronously, so as to expand the extension plate, thereby realizing the extension plate pressing against the inner side wall of the polyurethane ring layer to complete the rapid fixation of polyurethane ring layers with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the extrusion assembly of the present utility model;

[0019] Figure 3 is a schematic diagram of the internal structure of the extrusion assembly of the present utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the extension plate of the present utility model.

[0021] In the figure: 1. Main shaft; 101. Slide groove; 2. Polyurethane ring layer; 3. Bi-directional lead screw; 4. Extrusion assembly; 401. Moving sleeve; 402. Connecting rod; 403. Extension plate; 404. Rotating frame; 5. Cap; 6. Square groove; 7. Slide block; 8. Spring; 9. Linking rod; 10. Rail. Specific implementation manner

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment:

[0024] Please refer to Figures 1 - 4 , the present invention provides a technical solution:

[0025] A polyurethane rubber roll for mining machinery includes a main shaft 1. A polyurethane ring layer 2 is installed outside the main shaft 1. A through groove is opened inside the main shaft 1, and a bi-directional lead screw 3 is installed inside the through groove. An extrusion assembly 4 is installed outside the main shaft 1;

[0026] The extrusion assembly 4 is used to install polyurethane ring layers 2 with different diameters.

[0027] Further, please refer to Figure 2 and Figure 3 , in this embodiment, the extrusion assembly 4 includes a moving sleeve 401, a connecting rod 402, and an extension plate 403. The moving sleeves 401 are symmetrically installed outside the main shaft 1. The connecting rods 402 are symmetrically installed outside the moving sleeves 401. The extension plate 403 is installed at one end of the connecting rod 402 away from the moving sleeve 401. When the polyurethane ring layer 2 is in use, due to the special nature of its material, its service life is long. In the existing technology, when the polyurethane ring layer 2 is worn, the main shaft 1 needs to be placed in a casting mold, and then the polyurethane material is poured into the mold to produce a new polyurethane ring layer 2. Since the cost of the mold is expensive, by directly purchasing a polyurethane ring layer 2 and sleeving it outside the main shaft 1, by moving the moving sleeves 401 relative to each other outside the main shaft 1, two groups of connecting rods 402 can be synchronously arched outwards, so as to realize the jacking of the extension plate 403, thereby realizing the pressing of the inner side wall of the polyurethane ring layer 2 by the extension plate 403, and completing the rapid fixation of polyurethane ring layers 2 with different diameters.

[0028] Among them, please refer to Figure 2 and Figure 3, in this embodiment, a rotating frame 404 is installed outside the moving sleeve 401. The connecting rod 402 is connected to the moving sleeve 401 through the rotating frame 404. A connecting block is installed inside the extension plate 403. The extension plate 403 is connected to the moving sleeve 401 through the connecting rod 402. When the moving sleeves 401 approach each other, the connecting rod 402 rotates inside the rotating frame 404 and the connecting block, so that the connecting rod 402 arches outward synchronously, thereby expanding the extension plate 403 and pressing against the polyurethane ring layer 2.

[0029] Furthermore, please refer to Figure 1 , Figure 3 and Figure 4 , in this embodiment, a threaded sleeve is installed at the middle of the inside of the moving sleeve 401. A chute 101 is formed on the surface of the main shaft 1. The threaded sleeve is connected to the bidirectional lead screw 3 through the chute 101. Caps 5 are installed at both ends of the main shaft 1. Through the design of the caps 5, the bidirectional lead screw 3 is prevented from being exposed outside. By rotating the bidirectional lead screw 3, the bidirectional lead screw 3 rotates inside the main shaft 1. At the same time, through the threaded reaction with the threaded sleeve, the threaded sleeve is driven to rotate. Then, through the design of the chute 101, the threaded sleeve is limited, so that the threaded sleeve drives the two moving sleeves 401 to approach each other.

[0030] Furthermore, please refer to Figure 2 and Figure 3 , in this embodiment, a square groove 6 is formed inside the extension plate 403. Sliders 7 are symmetrically installed inside the square groove 6. A spring 8 is installed between the sliders 7. A linkage rod 9 is installed at the top of the slider 7, and the linkage rod 9 is designed in a cross structure. An extension plate is installed at one end of the linkage rod 9 away from the slider 7. Through the design of the extension plate, the distance of the extension plate 403 is extended, which is applicable to the large-diameter polyurethane ring layer 2. When the polyurethane ring layer 2 is working, vibrations will occur, which will cause the linkage rods 9 to contract with each other, so that the sliders 7 approach each other inside the square groove 6, thereby squeezing the spring 8. Through the expansion and energy storage of the spring 8, the vibration force is removed.

[0031] Furthermore, please refer to Figure 1 , in this embodiment, a clamping rail 10 is installed outside the polyurethane ring layer 2. The clamping rail 10 is designed in a horn shape and is equally spaced. By placing the hydraulic hose inside the clamping rail 10, the clamping rail 10 clamps the hydraulic hose. At the same time, there are multiple groups of clamping rails 10, so that multiple groups of hydraulic hoses can be worked on at one time.

[0032] In this embodiment, the implementation scenario is specifically as follows: By placing the hydraulic hose inside the clamping rail 10, the clamping rail 10 clamps the hydraulic hose. At the same time, there are multiple groups of clamping rails 10, enabling it to work on multiple groups of hydraulic hoses at one time. When the polyurethane ring layer 2 is in use, due to the special nature of its material, its service life is long. When a new polyurethane ring layer 2 needs to be replaced, the polyurethane ring layer 2 is sleeved outside the main shaft 1. By rotating the bidirectional lead screw 3, the bidirectional lead screw 3 rotates inside the main shaft 1. At the same time, through the thread reaction with the threaded sleeve, the threaded sleeve is driven to rotate. Then, through the design of the chute 101, the threaded sleeve is limited, so that the threaded sleeve drives the two moving sleeves 401 to approach each other, thereby enabling the connecting rod 402 to rotate inside the rotating frame 404 and the connecting block, and thus enabling the connecting rod 402 to arch outwards synchronously, so as to expand the expansion plate 403, thereby realizing the pressing of the inner side wall of the polyurethane ring layer 2 by the expansion plate 403, and completing the rapid fixation of the polyurethane ring layer 2 with different diameters.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane rubber roller for mining machinery, comprising a main shaft (1), characterized in that: A polyurethane ring layer (2) is installed on the outside of the main shaft (1), a through groove is opened inside the main shaft (1), a bidirectional screw rod (3) is installed inside the through groove, and an extrusion assembly (4) is installed on the outside of the main shaft (1); The extrusion assembly (4) is used to install polyurethane ring layers (2) of different diameters.

2. The polyurethane rubber roller for mining machinery according to claim 1, characterized in that: The extrusion assembly (4) comprises a movable sleeve (401), a connecting rod (402) and an expansion plate (403); the movable sleeve (401) is symmetrically mounted on the outside of the main shaft (1); the connecting rod (402) is symmetrically mounted on the outside of the movable sleeve (401); and the expansion plate (403) is mounted on an end of the connecting rod (402) away from the movable sleeve (401).

3. The polyurethane rubber roller for mining machinery according to claim 2, characterized in that: A rotating frame (404) is installed outside the movable sleeve (401), and the connecting rod (402) is connected to the movable sleeve (401) through the rotating frame (404).

4. The polyurethane rubber roller for mining machinery according to claim 2, characterized in that: A connecting block is installed on the inner side of the expansion plate (403), and the expansion plate (403) is connected to the moving sleeve (401) via a connecting rod (402).

5. The polyurethane rubber roller for mining machinery according to claim 2, characterized in that: A threaded sleeve is installed in the middle of the movable sleeve (401), a sliding groove (101) is provided on the surface of the main shaft (1), the threaded sleeve is connected to the bidirectional screw rod (3) through the sliding groove (101), and caps (5) are installed at both ends of the main shaft (1).

6. The polyurethane rubber roller for mining machinery according to claim 2, characterized in that: A square groove (6) is provided inside the expansion plate (403), sliders (7) are symmetrically installed inside the square groove (6), springs (8) are installed between the sliders (7), a linkage rod (9) is installed on the top of the slider (7), and the linkage rod (9) is designed in a cross structure, and an extension plate is installed at one end of the linkage rod (9) away from the slider (7).

7. The polyurethane rubber roller for mining machinery according to claim 1, characterized in that: A bail (10) is installed outside the polyurethane ring layer (2); the bail (10) is designed as a trumpet-shaped structure, and the bail (10) is distributed at equal intervals.

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