Steel wire rope oiling assembly and rotary linkage type automatic oiling fixed pulley

Abstract

The utility model provides a steel wire rope oiling assembly and rotary linkage type automatic oiling fixed pulley, the steel wire rope oiling assembly includes mounting seat and oil storage bin, mounting seat has the installation groove that the top of oil storage bin inserts, and the spring is arranged between the groove bottom of installation groove and oil storage bin, at least two limiting protrusions are circumferentially arranged to the lateral wall of oil storage bin, the inner lateral wall of installation groove is provided with the limiting slot that limiting protrusion enters, limiting slot is long strip shape, and the length direction of limiting slot is same with the telescopic direction of spring, the depth direction of installation groove, the bottom of oil storage bin is provided with the oil outlet and is installed with the oil outlet ball in oil outlet, the utility model discloses only when the steel wire rope or fixed pulley rotates, through the oil outlet ball rolling of steel wire rope or pulley rotation drive and trigger oil supply, stop oil supply automatically when stationary, can match the actual motion state of steel wire rope, both avoid lubrication deficiency when moving, and also eliminate oil waste when stationary.

Description

Technical Field

[0001] This utility model relates to the field of wire rope lubrication, specifically to a wire rope oiling assembly and a rotary linkage automatic oiling pulley. Background Technology

[0002] In the steel industry, overhead cranes are core equipment for raw material transfer, molten steel hoisting, and finished product stacking. The stable operation of their fixed pulleys directly affects production continuity and operational safety. During overhead crane operation, the wire ropes on the fixed pulleys are constantly subjected to dynamic friction and the complex outdoor environment. To reduce wear and prevent corrosion, lubricating oil must be applied regularly to ensure their service life and operational safety.

[0003] The current common method of applying lubricating oil in the industry is to fix an oil dripping pipe above the wire rope and start the dripping by manually controlling the valve or relying on the solenoid valve according to the time period set by experience, so that the lubricating oil drips onto the surface of the wire rope. For example, the applicant previously applied for a Chinese utility model patent with publication number CN221324093U, entitled "A Fully Automatic Oiling Device for the Main Hook Wire Rope of a Liquid Overhead Crane".

[0004] Currently, the opening and closing time of lubricating oil valves largely depends on the experience of the operators. Because the dripping operation cannot match the actual movement state of the wire rope, when the wire rope needs lubrication as it rotates with the fixed pulley, insufficient lubrication may occur due to the valve not opening in time, which will aggravate the wear of the wire rope. When the wire rope is stopped and stationary, if the dripping pipe continues to drip oil, it will not only waste lubricating oil and increase the equipment operation and maintenance costs, but also cause the continuously dripping lubricating oil to accumulate on the surface of the fixed pulley, the stationary section of the wire rope, and the crane operating platform. This accumulation will significantly reduce the friction coefficient between the fixed pulley and the wire rope. Once the crane starts and the wire rope is suddenly subjected to force, it may slip due to insufficient friction. In severe cases, it may even cause safety accidents such as the wire rope derailing and the crane load loss. Utility Model Content

[0005] To address the shortcomings of existing technologies where the oil dripping operation cannot match the actual movement state of the wire rope, this utility model provides a wire rope oiling component and a rotary linkage automatic oiling pulley.

[0006] To achieve the above objectives, the specific solution adopted by this utility model is as follows: a wire rope oiling assembly includes a mounting base and an oil storage tank. The mounting base has a mounting groove for inserting the top of the oil storage tank, and a spring is provided between the bottom of the mounting groove and the oil storage tank. At least two limiting protrusions are provided circumferentially on the side wall of the oil storage tank. A limiting groove is provided on the inner side wall of the mounting groove for the limiting protrusions to enter. The limiting groove is elongated, and the length direction of the limiting groove is the same as the extension direction of the spring and the depth direction of the mounting groove. An oil outlet is provided at the bottom of the oil storage tank, and an oil ball is installed in the oil outlet.

[0007] As a further optimization of the above technical solution, the oil storage tank is a variable diameter cylinder, including a straight section and a necked section connected in sequence. The straight section is used to insert into the installation groove, and the oil outlet ball is set at the small diameter end of the necked section.

[0008] As a further optimization of the above technical solution, the small-diameter end of the necked section is provided with an extended straight cylindrical mounting section, and the oil outlet ball is located inside the straight cylindrical mounting section.

[0009] As a further optimization of the above technical solution, the limiting protrusion is an elastic protrusion.

[0010] As a further optimization of the above technical solution, multiple springs are evenly distributed in the mounting groove, with one end of the spring connected to the bottom of the mounting groove and the other end connected to the bottom of the oil storage tank.

[0011] As a further optimization of the above technical solution, an oil inlet pipe is connected to the oil storage tank to deliver lubricating oil into it.

[0012] A rotary linkage type automatic oiling fixed pulley includes a fixed pulley body and a wire rope oiling assembly as described above. The fixed pulley body includes a connecting shaft and pulley discs symmetrically arranged at both ends of the connecting shaft. The wire rope oiling assembly is located directly above the wire rope and can contact the wire rope, or the wire rope oiling assembly is located above the inner wall of the pulley disc and can contact the inner side wall of the pulley disc.

[0013] As a further optimization of the above technical solution, the distance between the two pulleys gradually decreases from the outside to the inside to form a V-shaped wire rope groove.

[0014] As a further optimization of the above technical solution, the fixed pulley body is rotatably mounted on a U-shaped mounting frame. A hook is provided on the outer side of the top wall of the U-shaped mounting frame, and the wire rope oiling assembly is fixed to the inner side of the top wall of the U-shaped mounting frame through the mounting seat on it.

[0015] As a further optimization of the above technical solution, an oil storage tank and an oil outlet pipe connected to the oil storage tank are provided above the fixed pulley body. The oil outlet pipe includes a main oil outlet pipe and a distribution pipe. There are multiple wire rope oiling components connected in parallel to the distribution pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention employs a rolling oiling method where the oil-dispensing ball rolls onto the inner wall of the wire rope or pulley, replacing the traditional dripping method. When the oil-dispensing ball contacts the wire rope, it evenly coats the surface of the wire rope without any residue. Furthermore, oil supply is triggered only when the wire rope or pulley rotates, causing the oil-dispensing ball to roll; it automatically stops supplying oil when stationary. This matches the actual movement of the wire rope, avoiding both insufficient lubrication during movement and preventing oil wastage during rest.

[0017] 2. Multiple evenly distributed springs ensure the oil storage tank is under balanced force, and the elastic protruding limiting structure enhances assembly stability. At the same time, the design of the V-shaped wire rope groove and the limiting protrusion prevents the wire rope from derailing and the oil storage tank from shifting, ensuring the safety of equipment operation.

[0018] 3. By setting a spring between the mounting groove and the oil storage tank, the oil storage tank can be moved flexibly along the axial direction of the mounting groove, ensuring that the oil ball is always in flexible contact with the inner wall of the wire rope or pulley under the spring force. This solves the problem of rigid contact hindering operation caused by fixed installation, avoids the defect of poor contact affecting lubrication, and can adapt to slight position fluctuations in the movement of the wire rope, maintaining a stable contact oil supply state. Attached Figure Description

[0019] Figure 1 A schematic diagram of the steel wire rope oiling assembly; Figure 2 A schematic diagram of the fixed pulley structure located directly above the wire rope for the wire rope oiling assembly; Figure 3 A schematic diagram of the fixed pulley structure located above the inner wall of the pulley disc for the wire rope oiling assembly; Figure 4 A schematic diagram of the steel wire rope oiling assembly located below the oil storage tank; Figure 5 This is a schematic diagram of the oil outlet ball bearing in the installation section; Reference numerals in the attached drawings: 1. Mounting base, 2. Mounting groove, 3. Limiting protrusion, 4. Limiting groove, 5. Oil outlet ball, 6. Oil storage tank, 601. Straight section, 602. Necked section, 603. Mounting section, 7. Spring, 8. Oil inlet pipe, 9. Fixed pulley body, 901. Pulley disc, 902. Connecting shaft, 10. Steel wire rope, 11. Oil filling port, 12. Oil storage tank, 13. Mounting beam, 14. Bracket, 15. Foot, 16. Oil outlet pipe, 1601. Distribution pipe, 1602. Main oil outlet pipe. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art.

[0021] A wire rope oiling assembly includes a mounting base 1 and an oil reservoir 6. The mounting base 1 has a mounting groove 2 for inserting the top of the oil reservoir 6. The bottom of the oil reservoir 6 is provided with an oil outlet, and an oil ball bearing 5 is installed inside the oil outlet. In use, the oiling assembly is placed above the wire rope 10 wound on a fixed pulley. The oil ball bearing 5 of the oiling assembly contacts the wire rope 10. The movement of the wire rope 10 drives the oil ball bearing 5 to rotate, thereby achieving the oiling action of the wire rope 10, replacing the traditional dripping method and reducing waste. Alternatively, the oil ball bearing 5 can contact the inner wall of the pulley disc 901 of the fixed pulley. The lubricating oil is first applied to the inner wall of the pulley disc 901 and then flows along the inner wall of the pulley disc 901 to the wire rope 10, thereby achieving lubrication of the wire rope 10.

[0022] The oil reservoir 6 is a variable-diameter cylinder, comprising a straight section 601 and a necked section 602 connected in sequence. The straight section 601 is inserted into the mounting groove 2, and the necked section 602 collects lubricating oil, ensuring that the oil is concentrated at the oil outlet. The smaller diameter end of the necked section 602 is provided with an extended mounting section 603, in which the oil outlet ball bearings 5 ​​are embedded, improving the stability of the ball bearing installation and preventing oil leakage. Specifically, as shown... Figure 5 As shown, the mounting section 603 is provided with a groove for accommodating the oil ball 5. The center of the oil ball 5 is located within the groove, which effectively prevents it from detaching. Multiple support blocks 604 with a thickness of 0.5-1mm are evenly arranged on the inner wall of the groove, forming an oil-containing gap between the inner wall of the groove and the oil ball 5. When the oil ball 5 is stationary, the lubricating oil remains within the oil-containing gap; when the oil ball 5 rotates with the wire rope or pulley, it can drive the lubricating oil out to achieve oil supply. Furthermore, the specific installation method of the oil ball 5 in the mounting section 603 can refer to existing technology, such as the Chinese utility model patent with application number 202321605409.7 and patent name "A Quantitative Application Ball Head Structure".

[0023] A spring 7 is installed between the bottom of the mounting groove 2 and the oil storage tank 6. Multiple springs 7 are evenly distributed within the mounting groove 2, with one end fixedly connected to the bottom of the mounting groove 2 and the other end fixedly connected to the bottom of the oil storage tank 6. Since the oil outlet ball 5 needs to contact the inner wall of the wire rope 10 or pulley 901 to achieve oil dispensing, if the oil storage tank 6 is fixed within the mounting groove 2, the fixed position will cause the oil outlet ball 5 to form a rigid contact with the wire rope 10 or pulley 901, thus hindering the operation of the pulley or wire rope 10, or resulting in no contact at all, affecting the lubrication of the wire rope 10. The spring 7, through its own elastic expansion and contraction, can flexibly move the oil storage tank 6 along the axial direction of the mounting groove 2, ensuring that the oil outlet ball 5 always maintains flexible contact with the wire rope 10 or pulley 901 under the elastic force of the spring 7. This avoids operational obstruction caused by rigid contact, prevents lubrication failure due to poor contact, and can adapt to slight positional fluctuations of the wire rope 10 during movement, maintaining a stable contact state.

[0024] The side wall of the oil storage tank 6 is provided with at least two limiting protrusions 3 circumferentially. The inner side wall of the mounting groove 2 is provided with a limiting groove 4 for the limiting protrusions 3 to enter. The limiting groove 4 is elongated, and the length direction of the limiting groove 4 is the same as the extension direction of the spring 7 and the depth direction of the mounting groove 2. This can limit the movement trajectory of the oil storage tank 6, prevent it from rotating circumferentially or falling out of the mounting groove 2, and further ensure the alignment accuracy of the oil ball 5 with the target contact part. The limiting protrusions 3 are elastic protrusions that can deform slightly during assembly, making it easier for the oil storage tank 6 to be inserted into the mounting groove 2, while also enhancing the limiting stability.

[0025] An oil inlet pipe 8 is connected to the oil storage tank 6. One end of the oil inlet pipe 8 communicates with the interior of the oil storage tank 6, and the other end can be connected to an external oil supply device to continuously replenish lubricating oil to the oil storage tank 6, ensuring continuous oil supply. The oil inlet pipe 8 is installed on the tank body of the oil storage tank 6 and can be connected to either the straight section 601 or the reduced diameter section. In this embodiment, the oil inlet pipe 8 is connected to the top of the oil storage tank 6 and passes through the bottom of the mounting groove 2 to connect to the external oil supply device. The oil inlet pipe 8 is an elastic pipe, such as a corrugated pipe, to avoid interfering with the extension and contraction of the spring 7.

[0026] Example 2 This embodiment discloses a rotary linkage type automatic oiling pulley, including a pulley body 9 and a wire rope oiling assembly from Embodiment 1. The pulley body 9 includes a connecting shaft 902 and pulley discs 901 symmetrically fixed at both ends of the connecting shaft 902. The distance between the two pulley discs 901 gradually decreases from the outside to the inside, forming a V-shaped groove for the wire rope 10, which can limit the wire rope 10 and prevent it from coming out of the groove during rotation, while providing a path for lubricating oil conduction. The pulley body 9 is rotatably mounted on a U-shaped mounting bracket. A hook is provided on the outer side of the top wall of the U-shaped mounting bracket for easy hanging installation. The inner side of the top wall of the U-shaped mounting bracket is fixedly connected to the mounting seat 1 of the oiling assembly to ensure the stability of the oiling assembly position.

[0027] The oiling assembly is positioned directly above the wire rope 10. The oil ball 5 is in flexible contact with the wire rope 10 under the elastic force of the spring 7. When the wire rope 10 rotates, it drives the oil ball 5 to roll, and the lubricating oil in the oil storage tank 6 is transferred to the surface of the wire rope 10 through the ball to achieve uniform lubrication. When the wire rope 10 is stationary, the oil supply automatically stops to avoid waste.

[0028] In this embodiment, during use, the wire rope 10 contacts the oil ball 5 of the oiling component. The movement of the wire bed causes the oil ball 5 of the oiling component to rotate, and the lubricating oil flows to the wire rope 10 to achieve lubrication of the wire rope 10. When the crane stops working, the fixed pulley stops rotating, the oil supply stops automatically, and there is no waste of excess lubricating oil.

[0029] Example 3 This embodiment has the same overall structure as Embodiment 2, except that in this embodiment, there are two oiling components, each positioned above the inner wall of the two pulley discs 901. The oil-dispensing balls 5 flexibly contact the inner wall of the pulley disc 901 under the elastic force of the spring 7. When the fixed pulley body 9 rotates with the wire rope 10, the oil-dispensing balls 5 transfer lubricating oil to the inner wall of the pulley disc 901. The lubricating oil then flows along the inner side of the pulley disc 901 towards the wire rope 10. Since the inner wall of the pulley disc 901 is in direct contact with the wire rope 10, the lubricating oil can cover the contact area between the wire rope 10 and the fixed pulley body 9, achieving lubrication from the inside out. Simultaneously, the rotation of the pulley disc 901 evenly distributes the lubricating oil, improving lubrication efficiency. Furthermore, the two oiling components can further limit the movement of the wire rope 10, preventing it from slipping out of the groove during rotation.

[0030] In this embodiment, during use, the wire rope 10 drives the fixed pulley body 9 to rotate, and the oil ball 5 of the oiling component flexibly contacts the inner wall of the pulley plate 901. The lubricating oil flows through the inner side of the pulley plate 901 to the contact part between the wire rope 10 and the fixed pulley, achieving precise lubrication from the inside out. When the crane stops working, the fixed pulley stops rotating, and the oil supply stops automatically, with no excess lubricating oil wasted.

[0031] Example 4 In this embodiment, an oil storage tank 12 and an oil outlet pipe 16 connected to the oil storage tank 12 are provided above the fixed pulley body 9. There are multiple wire rope oiling components connected in parallel to the oil outlet pipe 16. Oil can be replenished centrally through the oil storage tank 12 to meet the oil supply needs of multiple components at the same time.

[0032] The oil storage tank 12 has a cylindrical structure and is made of ordinary steel plate rolled and welded. The oil storage tank 12 is mounted on the support 14. The height of the support 14 can increase the pressure differential and facilitate smooth flow of lubricating oil. The support 14 includes legs and a mounting beam 13 arranged laterally on the legs. The distribution pipe 1601 is supported on the mounting beam 13. The support legs and the mounting beam 13 are assembled into a detachable support 14, which is convenient for disassembly when replacing the wire rope 10 or for maintenance. The feet 15 of the support 14 are fixed with bolts and welded.

[0033] An oil filling port 11 is provided on the upper part of the oil storage tank 12, and the oil filling port 11 has a built-in filter screen. An oil outlet pipe 16 is connected to the bottom of the oil storage tank 12. The oil outlet pipe 16 includes an oil main pipe 1602 and a distribution pipe 1601 connected to the end of the oil main pipe 1602. The oil main pipe 1602 is vertically arranged, and the distribution pipe 1601 is horizontally arranged. Multiple wire rope oiling assemblies are connected in parallel to the distribution pipe 1601. Specifically, the wire rope oiling assemblies are fixed below the distribution pipe 1601 by mounting bases 1. The fixing method is existing technology; as a specific fixing method, the bottom plate of the mounting base 1 has multiple through holes on its edge, and the steel wire passes through the through holes and is tied to the distribution pipe. The oil inlet pipe 8 of the wire rope oiling assembly is connected to the distribution pipe 1601. Select oil storage tanks 6 at different heights so that the oil outlet balls 5 of multiple wire rope oiling components are in an arc shape consistent with the arc of the wire rope 10 on the fixed pulley, and the oil outlet balls 5 are in contact with the wire rope 10.

[0034] The specific implementation method is the same as that in Embodiment 2, and will not be repeated here.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire rope oiling assembly, characterized in that: The device includes a mounting base (1) and an oil storage tank (6). The mounting base (1) has a mounting groove (2) for inserting the top of the oil storage tank (6). A spring (7) is provided between the bottom of the mounting groove (2) and the oil storage tank (6). At least two limiting protrusions (3) are provided circumferentially on the side wall of the oil storage tank (6). A limiting groove (4) is provided on the inner side wall of the mounting groove (2) for the limiting protrusions (3) to enter. The limiting groove (4) is elongated and the length direction of the limiting groove (4) is the same as the extension direction of the spring (7) and the depth direction of the mounting groove (2). An oil outlet is provided at the bottom of the oil storage tank (6) and an oil ball (5) is installed in the oil outlet.

2. The wire rope oiling assembly according to claim 1, characterized in that: The oil storage tank (6) is a variable diameter cylinder, including a straight section (601) and a necked section (602) connected in sequence. The straight section (601) is used to insert into the mounting groove (2), and the oil ball (5) is set at the small diameter end of the necked section (602).

3. The wire rope oiling assembly according to claim 2, characterized in that: The small-diameter end of the necked section (602) is provided with an extended cylindrical mounting section (603), and the oil ball (5) is located inside the cylindrical mounting section (603).

4. The wire rope oiling assembly according to claim 1, characterized in that: The limiting protrusion (3) is an elastic protrusion.

5. The wire rope oiling assembly according to claim 1, characterized in that: The springs (7) are multiple and evenly distributed in the mounting groove (2). One end of the spring (7) is connected to the bottom of the mounting groove (2), and the other end is connected to the bottom of the oil storage tank (6).

6. The wire rope oiling assembly according to claim 1, characterized in that: The oil storage tank (6) is connected to an oil inlet pipe (8) that can deliver lubricating oil into it.

7. A rotary linkage type automatic oiling fixed pulley, characterized in that, The device includes a fixed pulley body (9) and a wire rope oiling assembly as described in any one of claims 1-6. The fixed pulley body (9) includes a connecting shaft (902) and pulley discs (901) symmetrically arranged at both ends of the connecting shaft (902). The wire rope (10) oiling assembly is located directly above the wire rope (10) and can contact the wire rope (10), or the wire rope (10) oiling assembly is located above the inner wall of the pulley disc (901) and can contact the inner side wall of the pulley disc (901).

8. The rotary linkage type automatic oiling pulley according to claim 7, characterized in that: The distance between the two pulleys (901) gradually decreases from the outside to the inside to form a V-shaped wire rope groove.

9. A rotary linkage type automatic oiling pulley according to claim 7, characterized in that: The fixed pulley body (9) is rotatably mounted on the U-shaped mounting frame. A hook is provided on the outer side of the top wall of the U-shaped mounting frame. The wire rope (10) oiling assembly is fixed to the inner side of the top wall of the U-shaped mounting frame through the mounting seat (1) on it.

10. A rotary linkage type automatic oiling pulley according to claim 7, characterized in that: An oil storage tank (12) and an oil outlet pipe (16) connected to the oil storage tank (12) are provided above the fixed pulley body (9). The oil outlet pipe (16) includes an oil main pipe (1602) and a distribution pipe (1601). There are multiple wire rope oiling components connected in parallel to the distribution pipe (1601).

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