Belt wheel structure

Abstract

The utility model discloses a belt wheel structure, which relates to the technical field of cable protection, and comprises a travelling wheel, an extension column and a rubber sleeve, the extension column is movably inserted into the side surface of a tank chain, and the tank chain is provided with an accommodating groove at the insertion position of the extension column. The traveling wheels are rotatably arranged at the bottoms of the unit joints of a traditional tank chain, sliding friction between the tank chain and a rack or the ground is changed into rolling friction, and compared with sliding friction, the rolling friction remarkably reduces the friction coefficient and reduces abrasion of the tank chain, so that the service life of the tank chain is prolonged, less maintenance and replacement are needed, and the service life of the tank chain is prolonged. The transparent rubber sleeve is fixedly arranged on the outer wall of the walking wheel, the rubber sleeve provides a layer of buffering protection, direct contact between the walking wheel and the ground or a rack is reduced, the abrasion speed is reduced, the service life of the walking wheel is prolonged, in addition, the rubber sleeve can absorb part of impact force and friction force, and the service life of the walking wheel is prolonged. And the walking wheels are protected from being directly damaged by external hard objects.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection, in particular to a pulley structure. Background Art

[0002] Tank chain (drag chain, cable drag chain, energy conduit) is a mechanical component used to protect and guide cables, air pipes and liquid pipes in moving equipment to prevent them from wear, twisting and stretching. It is widely used in CNC machine tools, robots, lifting equipment and automated production lines. Through flexible structural design and durable material selection, it ensures the stability and reliability of the equipment during movement and improves the overall efficiency and safety of the system.

[0003] At present, there is sliding friction between the tank chain and the frame or the ground when in use. The surface of the tank chain will be worn when it moves repeatedly, and the structural strength will be reduced, deformation will occur, the operating efficiency will decrease, and the friction will increase, resulting in energy loss and jamming, frequent replacement and increased maintenance costs. In severe cases, the bottom of the tank chain will be worn through, and finally the cable will be exposed or damaged. Summary of the invention

[0004] The purpose of the utility model is to solve the problems in the prior art that the tank chain causes sliding friction with the frame or the ground when in use, the surface of the tank chain will be worn when it moves repeatedly, the structural strength will be reduced, the chain will be deformed, the operating efficiency will be reduced, the friction will increase, resulting in energy loss and jamming, frequent replacement and maintenance costs will increase, and in severe cases the bottom of the tank chain will be worn through, eventually causing the cable to be exposed or damaged, and a pulley structure is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pulley structure includes a traveling wheel, an extension column, and a rubber sleeve, wherein the extension column is movably inserted into the side of a tank chain, the tank chain is provided with a receiving groove at the extension column insertion position, a blocking ring is fixedly provided on the outer wall of the extension column, a docking block is fixedly provided on the side of the blocking ring, a rectangular groove is provided on the side of the traveling wheel, the docking block is movably inserted into the rectangular groove, and a scraper component is provided at the end of the tank chain on the extension column to prevent the outer wall of the traveling wheel from being contaminated with impurities, which causes the impurities to enter the receiving groove and hinder the rotation of the traveling wheel.

[0007] Optionally, the scraper assembly includes a vertical plate, a scraper plate, and fixing bolts. The other end of the extension column is movably inserted into the side of the vertical plate, and the outer side of the vertical plate is symmetrically fixed to the inner side of the tank chain using fixing bolts.

[0008] Optionally, a scraper plate is symmetrically fixedly arranged on the vertical plate at the bottom of the traveling wheel, and the inner side surface of the scraper plate is arranged to be an arc-shaped surface.

[0009] Optionally, a central bolt is threadedly inserted into the middle position of the side surface of the traveling wheel, and a rear end of the central bolt is threadedly screwed into the center position of the side surface of the docking block.

[0010] Optionally, a circular array of edge bolts is provided on the side surface of the rubber sleeve, and the tail ends of the edge bolts are threadedly screwed into the side surface of the traveling wheel.

[0011] Optionally, auxiliary blocks are symmetrically fixedly arranged on the inner side surface of the rubber sleeve, and docking grooves are equidistantly formed on the outer wall of the running wheel along the vertical direction, and the cross-sectional size of the docking grooves is the same as that of the auxiliary blocks.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model has a traveling wheel rotatably arranged at the bottom of a traditional tank chain unit section, which converts the sliding friction between the tank chain and the frame or the ground into rolling friction. Compared with sliding friction, rolling friction significantly reduces the friction coefficient, reduces the wear of the tank chain, thereby extending its service life, requires less repair and replacement, and reduces maintenance costs. A transparent rubber sleeve is fixedly arranged on the outer wall of the traveling wheel. The rubber sleeve provides a layer of buffer protection, reduces the direct contact between the traveling wheel and the ground or the frame, thereby reducing the wear rate and extending the service life of the traveling wheel. In addition, the rubber sleeve can absorb part of the impact force and friction force, and protect the traveling wheel from direct damage by external hard objects.

[0014] 2. The utility model is provided with a scraper assembly at the bottom of the traveling wheel, which can prevent the outer wheel of the traveling wheel from being contaminated with dust, causing the outer diameter of the traveling wheel to expand and closely contact with the inner wall of the accommodating groove, resulting in obstruction of the rotation of the traveling wheel and delaying the normal movement of the entire tank chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the connection structure between the pulley and the scraper assembly.

[0017] Figure 3 for Figure 2 Schematic diagram of the semi-exploded structure.

[0018] Figure 4 for Figure 3 Another perspective structural diagram of .

[0019] In the figure: 1. tank chain; 2. receiving groove; 3. vertical plate; 4. fixing bolt; 5. scraper plate; 6. rectangular groove; 7. blocking ring; 8. extension column; 9. docking block; 10. walking wheel; 11. auxiliary block; 12. docking groove; 13. center bolt; 14. rubber sleeve; 15. edge bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A pulley structure includes a traveling wheel 10, an extension column 8, and a rubber sleeve 14. The extension column 8 is movably inserted into the side of the tank chain 1. The tank chain 1 is provided with a receiving groove 2 at the insertion position of the extension column 8. A blocking ring 7 is fixedly provided on the outer wall of the extension column 8. A docking block 9 is fixedly provided on the side of the blocking ring 7. A rectangular groove 6 is provided on the side of the traveling wheel 10. The docking block 9 is movably inserted into the inside of the rectangular groove 6. The setting of the docking block 9 and the rectangular groove 6 enables the extension column 8 to be quickly docked and installed with the traveling wheel 10. The blocking ring 7 indicates that the extension column 8 has reached the limit position when it is inserted into the receiving groove 2.

[0022] The extension column 8 is provided with a scraper assembly at the end of the tank chain 1 to prevent the outer wall of the traveling wheel 10 from being contaminated by impurities, causing the impurities to enter the receiving groove 2 and hinder the rotation of the traveling wheel 10. The scraper assembly includes a vertical plate 3, a scraper plate 5, and a fixing bolt 4. The other end of the extension column 8 is movably inserted into the side of the vertical plate 3. The outer side surface of the vertical plate 3 is symmetrically fixed to the inner side surface of the tank chain 1 by the fixing bolt 4. The vertical plate 3 is symmetrically fixed with a scraper plate 5 at the bottom of the traveling wheel 10. The inner side surface of the scraper plate 5 is set to an arc surface, which can make the outer wall of the scraper plate 5 fit to the outer wall of the rubber sleeve 14 of the outer wall of the traveling wheel 10.

[0023] A center bolt 13 is threaded and movably inserted into the middle position of the side of the walking wheel 10, and the tail end of the center bolt 13 is threaded into the center position of the side of the docking block 9. There are edge bolts 15 in a circular array on the side of the rubber sleeve 14, and the tail end of the edge bolt 15 is threaded into the side of the walking wheel 10. Auxiliary blocks 11 are symmetrically fixed on the inner side of the rubber sleeve 14. The outer wall of the walking wheel 10 is provided with docking grooves 12 equidistantly along the vertical direction. The cross-sectional size of the docking grooves 12 is the same as that of the auxiliary blocks 11. There are holes in a circular array on the side of the walking wheel 10, and the holes correspond to the positions of the edge bolts 15 one by one. The setting of the docking grooves 12 and the auxiliary blocks 11 allows the edge bolts 15 on the side of the rubber sleeve 14 to be quickly aligned with the holes reserved on the side of the walking wheel 10, so that the rubber sleeve 14 is put on the outer wall of the walking wheel 10 and the edge bolts 15 are quickly installed.

[0024] It should be additionally supplemented that the receiving groove 2 is a circular groove, and a hole matching the extension column 8 is reserved at the center position of the side of the receiving groove 2, and when the walking wheel 10 is installed into the inside of the receiving groove 2, the bottom of the walking wheel 10 will contact the ground, while the bottom of the tank chain 1 will not contact the ground or the frame.

[0025] The specific installation steps and principles of the utility model are as follows:

[0026] The installer first inserts the docking block 9 into the rectangular groove 6, then passes the center bolt 13 through the center of the side of the traveling wheel 10 and finally screws it into the center position of the docking block 9, inserts the auxiliary block 11 of the rubber sleeve 14 into the docking groove 12, and finally uses the edge bolt 15 to fix the rubber sleeve 14 to the outer wall of the traveling wheel 10, then inserts one end of the extension column 8 into the center position of the side of the accommodating groove 2, passes the vertical plate 3 into the side of the extension column 8, and uses the fixing bolt 4 to fix the vertical plate 3 to the inner side of the tank chain 1. At this time, the bottom of the scraper plate 5 contacts the outer wall of the traveling wheel 10.

[0027] If the outer wall of the rubber sleeve 14 is stained with dirt or waste during walking, the two groups of scraping plates 5 will scrape off the dirt or waste.

[0028] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pulley structure, comprising a travel wheel (10), an extension column (8), and a rubber sleeve (14), characterized in that: The extension column (8) is movably inserted into the side of the tank chain (1); the tank chain (1) is provided with a receiving groove (2) at the insertion position of the extension column (8); a blocking ring (7) is fixedly provided on the outer wall of the extension column (8); a docking block (9) is fixedly provided on the side of the blocking ring (7); a rectangular groove (6) is provided on the side of the walking wheel (10); the docking block (9) is movably inserted into the inside of the rectangular groove (6); and a scraping component is provided at the end of the tank chain (1) to prevent the outer wall of the walking wheel (10) from being contaminated with impurities, causing the impurities to enter the receiving groove (2) and hinder the rotation of the walking wheel (10).

2. A pulley structure according to claim 1, characterized in that: The scraper assembly comprises a vertical plate (3), a scraper plate (5), and a fixing bolt (4); the other end of the extension column (8) is movably inserted into the side of the vertical plate (3); the outer side of the vertical plate (3) is symmetrically fixedly connected to the inner side of the tank chain (1) by the fixing bolt (4).

3. A pulley structure according to claim 2, characterized in that: The vertical plate (3) is symmetrically fixedly provided with a scraper plate (5) at the bottom of the running wheel (10), and the inner side surface of the scraper plate (5) is arranged to be an arc-shaped surface.

4. A pulley structure according to claim 1, characterized in that: A central bolt (13) is threadedly inserted into the middle position of the side of the traveling wheel (10), and the tail of the central bolt (13) is threadedly screwed into the center position of the side of the docking block (9).

5. A pulley structure according to claim 1, characterized in that: The side surface of the rubber sleeve (14) is provided with edge bolts (15) in a circular array, and the tail ends of the edge bolts (15) are threadedly screwed into the side surface of the traveling wheel (10).

6. A pulley structure according to claim 1, characterized in that: The inner side surface of the rubber sleeve (14) is symmetrically fixed with an auxiliary block (11), and the outer wall of the running wheel (10) is provided with docking grooves (12) at equal intervals in the vertical direction, and the cross-sectional dimensions of the docking grooves (12) are the same as those of the auxiliary block (11).

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