A conveyor chain oiling mechanism

Abstract

This invention relates to the field of conveyor technology, specifically to a conveyor chain oiling mechanism, comprising an oil storage tank and a chain. A detachable cover is installed at the upper end of the oil storage tank, and an oil discharge component is installed at the bottom of the oil storage tank. A first piston for squeezing lubricating oil is slidably installed inside the oil storage tank. A connecting pipe penetrating the cover is installed on the upper surface of the cover. A third one-way valve is installed at the end of the connecting pipe away from the cover. An air cylinder communicating with the third one-way valve is installed at the upper end of the third one-way valve. A second one-way valve is installed at the bottom of the air cylinder, and a second piston is slidably installed inside the air cylinder. The second piston is connected to the upper end of a lever via a connecting component. A shaft is rotatably installed at the middle position of the lever, and a squeezing component for moving the lower end of the lever downwards is installed at the middle position of the lever. This invention has the following advantages: it eliminates the need for personnel to concentrate on maintaining the relative position of the dripping pipe and the roller, thus improving the oiling efficiency of the chain.

Description

Technical Field

[0001] This invention relates to an oiling mechanism for a conveyor chain, belonging to the field of conveyors. Background Technology

[0002] Chain conveyors are commonly used material handling equipment. They use an electric motor to drive sprockets, causing the chain to circulate and move the material placed on it. The material moves along the chain from the inlet to the outlet. Regular lubrication is crucial to ensure proper chain operation and extend its lifespan. A chain consists of inner chain plates, outer chain plates, pins, and rollers. The rollers are mounted on the pins and positioned between the inner and outer chain plates. A common method for chain lubrication is to drip liquid lubricant between the rollers and the pins. Currently, when dripping liquid lubricant between the rollers and the pins, the lubricant is typically stored in a deformable plastic bottle with a drip tube attached to the bottle opening. The liquid lubricant is manually squeezed to drip from the bottle onto the roller surface. This method requires personnel to move the plastic bottle to align the drip tube with each roller on the chain. Because the rollers in the chain are small, personnel need to concentrate to maintain the relative position of the drip tube and the roller, which affects the efficiency of lubrication. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a conveyor chain oiling mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a conveyor chain oiling mechanism, comprising an oil storage cylinder and a chain, wherein a detachable cylinder cover is installed at the upper end of the oil storage cylinder, an oil discharge component is installed at the bottom of the oil storage cylinder, a ball valve is installed inside the oil storage cylinder, a first piston for squeezing lubricating oil is slidably installed inside the oil storage cylinder, a connecting pipe penetrating the cylinder cover is installed on the upper surface of the cylinder cover, a third one-way valve is installed at the end of the connecting pipe away from the cylinder cover, an air cylinder communicating with the third one-way valve is installed at the upper end of the third one-way valve, the third one-way valve is open in the direction away from the air cylinder, the upper end of the air cylinder is open, a second one-way valve is installed at the bottom of the air cylinder, the second one-way valve is open in the direction close to the air cylinder, a second piston is slidably installed inside the air cylinder, the second piston is connected to the upper end of a lever through a connecting component, a shaft is rotatably installed at the middle position of the lever, the lower end of the lever extends between two rollers in the chain, and a squeezing component for moving the lower end of the lever downward is installed at the middle position of the lever.

[0005] Specifically, the oil discharge component includes a first one-way valve. The first one-way valve is installed at the bottom of the oil reservoir. The first one-way valve is open in a direction away from the oil reservoir. A hose is installed at the lower end of the first one-way valve. A pipe connector is installed at the lower end of the hose. A thin tube is installed at the lower end of the pipe connector. Both ends of the thin tube are open. Multiple oil discharge holes are equidistantly opened at the lower part of the outer surface of the thin tube. Both ends of the thin tube are equipped with sealing components for adjusting the number of oil discharge holes. An adjusting component for adjusting the relative position of the thin tube and the chain is installed between the pipe connector and the oil reservoir.

[0006] Specifically, the sealing component includes end caps. Both ends of the thin tube are provided with end caps for sealing the ends of the thin tube. Both ends of the thin tube are fitted with connecting rings that cooperate with the end caps. The end caps are connected to the connecting rings by multiple bolts. A threaded hole is opened in the middle of one side of the end cap. A screw is threaded into the threaded hole. A knob head is installed at the end of the screw on the outside of the thin tube. A third piston is installed at the end of the screw on the inside of the thin tube.

[0007] Specifically, the adjusting component includes a support plate, the outer surface of the pipe joint is fixedly connected to the support plate, a vertically arranged stud is installed at the end of the support plate away from the pipe joint, a support lug is installed at the lower end of the oil reservoir, a vertical hole that mates with the stud is opened on the upper surface of the support lug, the stud passes through the vertical hole, and nuts are provided on both the upper and lower sides of the vertical hole, and the nuts are threadedly connected to the stud.

[0008] Specifically, the connecting member includes a round rod, a round rod is installed at the middle position of the upper surface of the second piston, a horizontal frame is fixedly connected to the upper end of the round rod, a shaft head is installed at the upper end of the lever, the shaft head is inserted into the horizontal frame and slides in contact with the inner wall of the horizontal frame, a connecting plate is fixedly connected to the outer surface of the air cylinder, a top plate is installed at the upper end of the connecting plate, and one end of the top plate is fixedly connected to the cylinder cover.

[0009] Specifically, the extrusion component includes a support plate, a support plate is installed at the middle of the lever, a lower limiting cylinder is installed on the upper surface of the support plate, a vertically arranged spring is inserted in the lower limiting cylinder, an upper limiting cylinder is sleeved on the upper end of the spring, a horizontal plate is installed on the upper end of the upper limiting cylinder, a connecting plate is connected and fixed to the end of the shaft away from the lever, a connecting plate is connected and fixed to the end of the horizontal plate away from the upper limiting cylinder, a hanging plate is connected and fixed to the end of the horizontal plate near the upper limiting cylinder, a top plate is connected and fixed to the upper end of the hanging plate, an ear plate is installed at the middle of the top plate, and multiple fixing holes are evenly opened on the upper surface of the ear plate.

[0010] Specifically, an upper ring is fitted on the lower outer surface of the cylinder cover and is fixed to the cylinder cover, and a lower ring is fitted on the oil storage cylinder and is fixed to the oil storage cylinder. The upper ring is connected to the lower ring by multiple bolts.

[0011] Specifically, a connector is fixedly connected to the middle of the upper surface of the first piston, and a lifting lug is fixedly connected to the upper end of the connector.

[0012] Specifically, a roller is rotatably mounted on the lower end of the lever, and the roller is positioned between two rollers in the chain, with the roller in contact with the roller.

[0013] The beneficial effects of this invention are:

[0014] 1. Based on the height difference between the tube and the chain, adjust the position of the stud along the vertical hole on the lug to change the height of the tube until the distance between the tube and the chain meets the requirements. Then, use the two nuts on the stud to restrict the relative position of the stud and the lug, so as to easily adjust the relative position between the tube and the chain, and allow the lubricating oil to drip at the connection between the roller and the pin in the chain with a shorter height difference.

[0015] 2. Based on the width of the chain and the relative position of the chain and the thin tube, use the knob to turn the screws in the two threaded holes, causing the screws to drive the third piston to move inside the thin tube. Ultimately, the oil drain hole between the two third pistons is positioned directly above the roller in the chain. This allows the number of oil drain holes to be adjusted according to the width of the chain, and ensures that the opened oil drain holes are directly above the roller in the chain. When lubricating oil is added, it will drip directly onto the connection between the roller and the pin, preventing lubricating oil from dripping onto other parts and reducing lubricating oil waste.

[0016] 3. Moving the chain at a low speed forces the rollers in the chain to move the lower roller of the lever upwards. This rollers achieve rolling contact between the lower end of the lever and the rollers, reducing wear. As the rollers drive the lower end of the lever upwards, the lever rotates around the shaft, and the upper end of the lever presses downwards against the cross frame. Simultaneously, the spring is compressed. At this time, the second piston moves downwards inside the air cylinder, the second one-way valve closes, and the third one-way valve opens. Air from the air cylinder, compressed by the second piston, enters the space formed by the cylinder cover and the oil reservoir through the connecting pipe. The first piston, compressed by the air, moves downwards and compresses the lubricating oil in the oil reservoir, causing the first one-way valve to open. The oil reservoir is opened, allowing the lubricating oil in the reservoir to drain through the drain hole on the thin tube and drip onto the connection between the rollers and pins in the chain. When the roller passes over one of the rollers in the chain, the lower end of the lever moves downward under the action of the spring's rebound force, causing the second piston to move upward in the air cylinder. The second one-way valve opens, and the third one-way valve closes, preparing for the next injection of air into the space formed by the cylinder cover and the oil reservoir. The roller moves up and down repeatedly during the alternating contact with multiple rollers in the chain, thus achieving oiling of each roller in the chain individually. This eliminates the need for personnel to concentrate on maintaining the relative position of the drip tube and the rollers, improving the oiling efficiency of the chain. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a conveyor chain oiling mechanism according to the present invention;

[0019] Figure 2 This is another perspective view of a conveyor chain oiling mechanism according to the present invention;

[0020] Figure 3 This is a schematic diagram of the assembly of the first piston and the oil reservoir in a conveyor chain oiling mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the assembly of the spring, the second piston, and the lever in a conveyor chain oiling mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the assembly of the screw, end cap and thin tube of the conveyor chain oiling mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the assembly of the third piston, screw, and thin tube in a conveyor chain oiling mechanism of the present invention;

[0024] In the diagram: 1. Oil reservoir, 2. Ball valve, 3. First check valve, 4. Hose, 5. Thin tube, 6. Screw, 7. Chain, 8. Shaft, 9. Connecting plate, 10. Lever, 11. Support plate, 12. Lower limit cylinder, 13. Spring, 14. Upper limit cylinder, 15. Horizontal plate, 16. Hanging plate, 17. Top plate, 18. Connecting plate, 19. Shaft head, 20. Horizontal frame, 21. Round rod, 22. Air cylinder, 23. 24. Second check valve, 25. Third check valve, 26. Connecting pipe, 27. Stud, 28. Nut, 29. Support lug, 30. Lower ring, 31. Support plate, 32. Upper ring, 33. Cylinder cover, 34. Ear plate, 35. Lifting lug, 36. First piston, 37. Second piston, 38. Roller, 39. End cap, 40. Connecting ring, 41. Knob head, 42. Third piston, 43. Oil drain hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1-3The present invention provides a technical solution: a conveyor chain oiling mechanism, including an oil storage cylinder 1 and a chain 7. A detachable cylinder cover 32 is installed on the upper end of the oil storage cylinder 1. An upper ring 31 is fitted on the lower outer surface of the cylinder cover 32 and is fixed to the cylinder cover 32. A lower ring 29 is fitted on the oil storage cylinder 1 and is fixed to the oil storage cylinder 1. The upper ring 31 is connected to the lower ring 29 by multiple bolts, which facilitates the disassembly and assembly of the cylinder cover 32 and the oil storage cylinder 1.

[0027] See Figure 1 , Figure 2 , Figure 5 and Figure 6 A first check valve 3 is installed at the bottom of the oil reservoir 1. The first check valve 3 is open in the direction away from the oil reservoir 1. A hose 4 is installed at the lower end of the first check valve 3. A pipe connector is installed at the lower end of the hose 4. A thin tube 5 is installed at the lower end of the pipe connector. Both ends of the thin tube 5 are open. Multiple oil drain holes 42 are equidistantly opened on the lower part of the outer surface of the thin tube 5. Both ends of the thin tube 5 are provided with end caps 38 for sealing the ends of the thin tube 5. Both ends of the thin tube 5 are fitted with connecting rings 39 that cooperate with the end caps 38. The end caps 38 are connected to the connecting rings 39 by multiple bolts. A threaded hole is opened in the middle of one side of the end cap 38. A screw 6 is threaded into the threaded hole. The screw 6 is located at one end outside the thin tube 5. A knob head 40 is installed, and a third piston 41 is installed at one end of the screw 6 inside the thin tube 5. According to the width of the chain 7 and the relative position of the chain 7 and the thin tube 5, the knob head 40 is used to turn the screw 6 in the two threaded holes, so that the screw 6 drives the third piston 41 to move inside the thin tube 5. Finally, the oil drain hole 42 between the two third pistons 41 is positioned directly above the roller in the chain 7. This allows the number of oil drain holes 42 to be adjusted according to the width of the chain 7, and the opened oil drain hole 42 is positioned directly above the roller in the chain 7. Therefore, when lubricating oil is dripped, the lubricating oil will drip directly onto the connection between the roller and the pin, preventing the lubricating oil from dripping onto other parts and reducing the waste of lubricating oil.

[0028] See Figures 1-3 A support plate 30 is fixed to the outer surface of the pipe joint. A vertically arranged stud 26 is installed at the end of the support plate 30 away from the pipe joint. A support lug 28 is installed at the lower end of the oil reservoir 1. A vertical hole that mates with the stud 26 is opened on the upper surface of the support lug 28. The stud 26 passes through the vertical hole. Nuts 27 are provided on the upper and lower sides of the vertical hole. The nuts 27 are threaded onto the stud 26. According to the height difference between the thin tube 5 and the chain 7, the position of the stud 26 is adjusted along the vertical hole on the support lug 28 to change the height of the thin tube 5 until the distance between the thin tube 5 and the chain 7 meets the requirements. Then, the two nuts 27 on the stud 26 are used to limit the relative position of the stud 26 and the support lug 28, so as to realize convenient adjustment of the relative position between the thin tube 5 and the chain 7, and so that the lubricating oil drips onto the roller and pin connection part in the chain 7 with a shorter height difference.

[0029] See Figures 1-3 A ball valve 2 is installed inside the oil reservoir 1. A first piston 35 for squeezing lubricating oil is slidably installed inside the oil reservoir 1. A connector is fixedly connected to the middle of the upper surface of the first piston 35. A lifting lug 34 is fixedly connected to the upper end of the connector. After separating the oil reservoir 1 and the cylinder cover 32, the ball valve 2 is opened, and then the first piston 35 is pulled by the lifting lug 34, so that the first piston 35 is separated from the oil reservoir 1. At this time, air enters the space formed by the first piston 35 and the oil reservoir 1 through the ball valve 2. After the first piston 35 is removed from the oil reservoir 1, it is convenient to replenish the lubricating oil into the oil reservoir 1.

[0030] See Figure 1 , Figure 2 and Figure 4 A connecting pipe 25 is installed on the upper surface of the cylinder cover 32, penetrating the cylinder cover 32. A third one-way valve 24 is installed at the end of the connecting pipe 25 away from the cylinder cover 32. An air cylinder 22 communicating with the third one-way valve 24 is installed at the upper end of the third one-way valve 24. The third one-way valve 24 is open in the direction away from the air cylinder 22. The upper end of the air cylinder 22 is open. A second one-way valve 23 is installed at the bottom of the air cylinder 22. The second one-way valve 23 is open in the direction closer to the air cylinder 22. A second piston 36 is slidably installed inside the air cylinder 22. A round rod 21 is installed at the middle position of the upper surface of the second piston 36. A crossbar is connected and fixed at the upper end of the round rod 21. A shaft head 19 is installed on the upper end of the frame 20 and the lever 10. A connecting plate 18 is fixedly connected to the outer surface of the air cylinder 22. A top plate 17 is installed on the upper end of the connecting plate 18. One end of the top plate 17 is fixedly connected to the cylinder cover 32. The top plate 17 and the connecting plate 18 together restrict the position of the air cylinder 22, so that the shaft head 19 is inserted into the horizontal frame 20. At this time, the shaft head 19 slides in contact with the inner wall of the horizontal frame 20. When the upper end of the lever 10 moves up and down, it will drive the shaft head 19 to move within the horizontal frame 20. When the shaft head 19 moves up and down, it forces the horizontal frame 20 to move up and down, which facilitates the second piston 36 to move up and down within the air cylinder 22.

[0031] See Figure 1 , Figure 2 and Figure 4 A shaft 8 is rotatably mounted at the middle of the lever 10. The lower end of the lever 10 extends between two rollers in the chain 7. A roller 37 is rotatably mounted at the lower end of the lever 10. The roller 37 is positioned between two rollers in the chain 7. The roller 37 contacts the roller, causing the chain 7 to move at a low speed. The roller in the chain 7 forces the roller 37 at the lower end of the lever 10 to move upward. The roller 37 achieves rolling contact between the lower end of the lever 10 and the roller, reducing wear.

[0032] See Figure 1 , Figure 2 and Figure 4A support plate 11 is installed in the middle of the lever 10. A lower limit cylinder 12 is installed on the upper surface of the support plate 11. A vertically arranged spring 13 is inserted in the lower limit cylinder 12. An upper limit cylinder 14 is sleeved on the upper end of the spring 13. A horizontal plate 15 is installed on the upper end of the upper limit cylinder 14. The upper limit cylinder 14 and the lower limit cylinder 12 together limit the position of the two ends of the spring 13.

[0033] See Figures 1-6 A connecting plate 9 is fixed to the end of the shaft 8 away from the lever 10. The end of the horizontal plate 15 away from the upper limit cylinder 14 is fixed to the connecting plate 9. A hanging plate 16 is fixed to the end of the horizontal plate 15 near the upper limit cylinder 14. A top plate 17 is fixed to the upper end of the hanging plate 16. An ear plate 33 is installed in the middle of the top plate 17. Multiple fixing holes are evenly opened on the upper surface of the ear plate 33. The ear plate 33 is installed in the required position using bolts. At this time, the position of the top plate 17 is restricted, that is, the positions of components such as the cylinder cover 32, the air cylinder 22, the horizontal plate 15, and the lever 10 are restricted. When the roller 37 drives the lower end of the lever 10 to move upward, the lever 10 rotates around the shaft 8, and the shaft head 19 at the upper end of the lever 10 presses the horizontal frame 20 downward. At the same time, the spring 13 is in a compressed state. At this time, the second piston 36 moves downward in the air cylinder 22, the second one-way valve 23 closes, and the third one-way valve 24 opens, so that the air in the air cylinder 22 is squeezed by the second piston 36. The air is pressed down through the connecting pipe 25 into the space formed by the cylinder cover 32 and the oil reservoir 1. The first piston 35 moves downward under the pressure of the air and squeezes the lubricating oil in the oil reservoir 1, causing the first one-way valve 3 to open. Thus, the lubricating oil in the oil reservoir 1 is discharged through the oil drain hole 42 on the thin pipe 5 and drips onto the connection between the roller and the pin in the chain 7. When the roller 37 passes over one of the rollers in the chain 7, the lower end of the lever 10 moves downward under the action of the spring 13. Thus, the second piston 36 moves upward in the air cylinder 22, the second one-way valve 23 opens, and the third one-way valve 24 closes, preparing for the next injection of air into the space formed by the cylinder cover 32 and the oil reservoir 1. The roller 37 moves up and down repeatedly in the process of alternating contact with multiple rollers in the chain 7, thereby realizing the oiling of each roller in the chain 7. There is no need for personnel to concentrate on maintaining the relative position of the drip tube and the roller, thus improving the oiling efficiency of the chain 7.

[0034] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A conveyor chain oiling mechanism, comprising an oil reservoir and a chain, characterized in that: The upper end of the oil reservoir is equipped with a detachable cap, the bottom of the oil reservoir is equipped with an oil discharge component, the inside of the oil reservoir is equipped with a ball valve, and a first piston for squeezing lubricating oil is slidably installed inside the oil reservoir. A connecting pipe is installed on the upper surface of the cap, penetrating the cap. A third check valve is installed at the end of the connecting pipe away from the cap. An air cylinder connected to the third check valve is installed at the upper end of the third check valve. The third check valve is open in the direction away from the air cylinder. The upper end of the air cylinder is open. A second check valve is installed at the bottom of the air cylinder. The second check valve is open in the direction closer to the air cylinder. A second piston is slidably installed inside the air cylinder. The second piston is connected to the upper end of the lever through a connecting component. A shaft is rotatably installed in the middle of the lever. The lower end of the lever extends between two rollers in the chain. A squeezing component for moving the lower end of the lever downward is installed in the middle of the lever. The oil discharge component includes a first check valve, which is installed at the bottom of the oil reservoir. The first check valve is open in the direction away from the oil reservoir. A hose is installed at the lower end of the first check valve, and a pipe connector is installed at the lower end of the hose. A thin tube is installed at the lower end of the pipe connector. Both ends of the thin tube are open. Multiple oil discharge holes are equidistantly opened on the lower part of the outer surface of the thin tube. Both ends of the thin tube are equipped with sealing devices for adjusting the number of oil discharge holes. An adjusting device for adjusting the relative position of the thin tube and the chain is installed between the pipe connector and the oil reservoir. The connecting parts include a round rod, a round rod is installed at the middle of the upper surface of the second piston, a cross frame is fixed to the upper end of the round rod, a shaft head is installed at the upper end of the lever, the shaft head is inserted into the cross frame and slides in contact with the inner wall of the cross frame, a connecting plate is fixed to the outer surface of the air cylinder, a top plate is installed at the upper end of the connecting plate, and one end of the top plate is fixed to the cylinder cover. The extrusion component includes a support plate. A support plate is installed in the middle of the lever. A lower limit cylinder is installed on the upper surface of the support plate. A vertically arranged spring is inserted in the lower limit cylinder. An upper limit cylinder is sleeved on the upper end of the spring. A horizontal plate is installed on the upper end of the upper limit cylinder. A connecting plate is fixed to the end of the shaft away from the lever. A connecting plate is fixed to the end of the horizontal plate away from the upper limit cylinder. A hanging plate is fixed to the end of the horizontal plate near the upper limit cylinder. A top plate is fixed to the upper end of the hanging plate. An ear plate is installed in the middle of the top plate. Multiple fixing holes are evenly opened on the upper surface of the ear plate. The ear plate is installed in the required position using bolts. At this time, the position of the top plate is restricted, that is, the positions of the cylinder cover, air cylinder, horizontal plate, and lever are restricted. The sealing component includes end caps. Both ends of the thin tube are provided with end caps for sealing the ends of the thin tube. Both ends of the thin tube are fitted with connecting rings that mate with the end caps. The end caps are connected to the connecting rings by multiple bolts. A threaded hole is opened in the middle of one side of the end cap. A screw is threaded into the threaded hole. A knob head is installed at the end of the screw on the outside of the thin tube, and a third piston is installed at the end of the screw on the inside of the thin tube.

2. A conveyor chain oiling mechanism according to claim 1, characterized in that: The adjusting component includes a support plate, which is fixed to the outer surface of the pipe joint. A vertically arranged stud is installed at the end of the support plate away from the pipe joint. A lug is installed at the lower end of the oil reservoir. A vertical hole that mates with the stud is opened on the upper surface of the lug. The stud passes through the vertical hole. Nuts are provided on both the upper and lower sides of the vertical hole, and the nuts are threaded onto the stud.

3. A conveyor chain oiling mechanism according to claim 1, characterized in that: An upper ring is fitted on the outer surface of the lower end of the cylinder cover and is fixed to the cylinder cover. A lower ring is fitted on the oil storage cylinder and is fixed to the oil storage cylinder. The upper ring is connected to the lower ring by multiple bolts.

4. A conveyor chain oiling mechanism according to claim 1, characterized in that: A connector is fixedly attached to the middle of the upper surface of the first piston, and a lifting lug is fixedly attached to the upper end of the connector.

5. A conveyor chain oiling mechanism according to claim 1, characterized in that: A roller is mounted on the lower end of the lever and is positioned between two rollers in the chain, with the roller in contact with the roller.

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