Automatic lubricating device for pin teeth of circular cooler

Abstract

The invention discloses an automatic lubricating device for pin teeth of a circular cooler, which relates to the technical field of pin tooth lubrication and comprises a support frame, a driving shaft, a gear, the pin teeth and an inductive proximity switch. A lubricating mechanism is arranged on the side edge of the supporting frame and comprises a first fixing frame, a valve block, a lubricating oil nozzle pipeline, an oil pipe, an oil feeding electromagnetic valve, a compression air pipe, an air injection electromagnetic valve and an air inlet pipeline, the oil pipe and the oil feeding electromagnetic valve are installed below the lubricating oil nozzle pipeline, and the air pipe and the air injection electromagnetic valve are installed on the side edge of the air inlet pipeline. The lubricating oil nozzle pipeline and the air inlet pipeline are arranged in the valve block, compressed air and lubricating oil are fully atomized through the conical nozzle structure, the spraying coverage range is expanded through the horn-shaped nozzle, lubricating dead corners of a pin tooth meshing face and peripheral key parts are eradicated, and lubrication as needed is achieved through accurate control over the air injection electromagnetic valve and the oil supply electromagnetic valve. Excessive consumption of lubricating oil is avoided, and the use cost is further reduced.

Description

Technical Field

[0001] This invention relates to the field of pin lubrication technology, specifically to an automatic lubrication device for pins in an annular cooler. Background Technology

[0002] As a core piece of equipment for cooling high-temperature materials in industries such as metallurgy and building materials, the ring cooler's operational stability directly affects the efficiency and product quality of the entire production line. The meshing transmission structure of pins and gears is the core power transmission component of the ring cooler, bearing the crucial mission of driving the equipment to operate continuously. However, the working environment of the ring cooler is extremely harsh. The pins and gears are subjected to severe conditions such as high temperature, dust, heavy load, and vibration for a long time, making the problem of tooth surface friction wear particularly prominent. If lubrication is not timely or sufficient, it is easy to cause failures such as tooth surface wear, meshing jamming, or even breakage. This will not only lead to the ring cooler being shut down for maintenance, causing significant production losses, but also significantly shorten the service life of core components such as pins and gears, greatly increasing equipment operation and maintenance costs. Currently, the lubrication methods for the pins of ring coolers on the market are mainly manual lubrication and traditional semi-automatic lubrication, which have many obvious defects. The ring cooler pin gear transmission lubrication device with application number CN202211605076.8 has an oil spray pipe on one side of the meshing point between the pin gear and the annular pin chain (including connecting chain plate, pin shaft, and bushing). The oil spray pipe is arranged radially along the annular pin chain and is connected to the compressed gas inlet pipe and the oil guide pipe respectively. The oil guide pipe is connected to the upper oil tank. A waste oil tank is provided below the oil spray pipe. This invention has a simple structure, is easy to process and manufacture, and is convenient to install and maintain. It has a good lubrication effect, which can reduce the wear of the pin chain bushing on the rotating body and slow down the wear of the pin gear, thereby extending the service life of the entire transmission chain. However, the device has significant shortcomings: First, it adopts a timed lubrication mode of "2-7 days / time" and lacks real-time position detection function, which easily leads to ineffective lubrication problems such as "spraying oil before the pin tooth arrives" or "spraying oil after the pin tooth has passed"; Second, it relies on gravity oil supply combined with duckbill-shaped flat nozzle spray, and the oil volume is easily affected by the fluctuation of the oil tank level, which poses a risk of over- or under-supply of oil and is difficult to adapt to the precise lubrication requirements of the dynamic operation of the ring cooler. Based on this, this solution proposes "an automatic lubrication device for the pin teeth of an annular cooler" to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic lubrication device for the pin teeth of an annular cooler, so as to solve the problem mentioned in the background art that existing equipment on the market lacks real-time position detection function.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic lubrication device for pin teeth of an annular cooler, comprising a support frame, a drive shaft, gears, pin teeth, and an inductive proximity switch; The support frame is provided with a lubrication mechanism on its side. The lubrication mechanism includes a first fixed frame, a valve block, a lubricating oil nozzle pipeline, an oil pipe, an oil supply solenoid valve, a compressed air pipe, a jet solenoid valve, and an air intake pipeline. The oil pipe and the oil supply solenoid valve are installed below the lubricating oil nozzle pipeline, and the air pipe and the jet solenoid valve are installed on the side of the air intake pipeline. The lubricating oil nozzle pipeline and the air intake pipeline are located inside the valve block.

[0005] As a preferred technical solution of the present invention, the support frame is a hollow structure, the side of the support frame is rotatably connected to the drive shaft, the drive shaft is equipped with high-strength bearings at the connection points between the upper and lower ends of the support frame, and the bottom input end of the support frame is a flange interface structure. The above technical solution adopts a hollow structure for the support frame, which can significantly reduce the weight of the device itself to reduce the installation load pressure, facilitate heat dissipation of internal components, and provide sufficient operating space for later inspection and maintenance. The high-strength bearings configured at the connection points between the drive shaft rotatably connected to the side of the support frame and the upper and lower ends of the support frame can effectively reduce the frictional resistance when the drive shaft rotates, improve wear resistance and load-bearing capacity, and ensure long-term stable operation of the drive shaft. The flange interface structure at the bottom input end of the support frame is not only firmly connected and has excellent sealing performance, but also enables docking with external components, while simplifying the installation and disassembly process and improving the assembly efficiency of the device.

[0006] As a preferred embodiment of the present invention, a fixed gear is fitted on the outer side of the drive shaft, and the gear tooth pressing part has an inclined surface structure; By adopting the above technical solution, the gear fixed on the outside of the drive shaft has a beveled structure for its tooth pressing part. During meshing, the contact area between the gear and the pin tooth is more reasonably distributed, the force is more uniform, and the tooth surface damage caused by local stress concentration is avoided. At the same time, it can reduce the impact and noise generated during meshing, improve the transmission efficiency of the gear and pin tooth, extend the service life of the gear, and ensure the smoothness of power transmission.

[0007] As a preferred technical solution of the present invention, the drive shaft is meshed with a pin tooth, the pin tooth adopts a cylindrical structure, and a pin tooth base is fitted on the upper and lower sides of the pin tooth; The above technical solution uses a meshing connection between the drive shaft and the pin, which provides high transmission accuracy and low power loss, ensuring stable and reliable power transmission during the operation of the annular cooler. The pin adopts a cylindrical structure, and its standardized design makes its processing technology mature and highly versatile. This facilitates mass production, reduces manufacturing costs, and eliminates the need for customization during later replacements, improving ease of replacement. The pin bases fitted on the upper and lower sides of the pin effectively restrict the axial movement of the pin, fixing and protecting it, preventing meshing deviations due to displacement, and further extending the service life of the pin.

[0008] As a preferred embodiment of the present invention, the first fixing frame is bolted to one side of the centerline of the support frame; By adopting the above technical solution, the first fixing frame is installed on one side of the center line of the support frame by bolt fixing. This not only provides high connection strength and good stability, effectively resisting the vibration generated during the operation of the annular cooler and preventing the first fixing frame from loosening, but also has the advantages of convenient disassembly and adjustment. The installation position of the first fixing frame can be flexibly adjusted according to the actual lubrication needs. At the same time, it provides convenience for the subsequent maintenance and replacement of the lubrication mechanism, ensuring the installation efficiency of the lubrication mechanism.

[0009] As a preferred technical solution of the present invention, the valve block is fixed by bolts on the inner wall of the first fixing frame, and the lubricating oil nozzle pipeline is embedded in the valve block. The lubricating oil nozzle pipeline passes through the side wall of the first fixing frame and protrudes by 5 cm. The bottom of the lubricating oil nozzle pipeline has an internal thread interface structure. The left side of the lubricating oil nozzle pipeline is connected to the air intake pipeline. The connection part between the air intake pipeline and the lubricating oil nozzle pipeline is a conical nozzle structure. The right side of the lubricating oil nozzle pipeline is a trumpet-shaped nozzle. Using the above technical solution, the valve block, which is firmly installed on the inner wall of the first fixed frame by bolts, can protect the lubricating oil nozzle pipeline and air intake pipeline embedded inside, preventing damage to the pipeline from external impacts. At the same time, it ensures that the pipeline position is fixed to ensure accurate lubrication direction. The design of the lubricating oil nozzle pipeline passing through the side wall of the first fixed frame and protruding by 5 cm can shorten the distance to the pin teeth and improve lubrication accuracy. The internal thread interface structure at the bottom has excellent sealing performance when connected to the oil pipe, which can effectively prevent lubricating oil leakage and facilitate maintenance and replacement. The conical nozzle structure at the connection between the air intake pipeline on the left side of the lubricating oil nozzle pipeline and the lubricating oil nozzle pipeline can fully mix and atomize the compressed gas and lubricating oil. The trumpet-shaped nozzle on the right side of the lubricating oil nozzle pipeline can expand the coverage of lubricating oil spray, ensuring that the pin tooth meshing surface and surrounding key parts are fully lubricated and avoiding lubrication dead zones.

[0010] As a preferred embodiment of the present invention, the air intake pipe is connected to a compressed air pipe, the compressed air pipe is connected to an external air source, and the compressed air pipe is connected in series with a jet solenoid valve, the jet solenoid valve being bolted to the first fixing frame. With the above technical solution, the intake pipe is connected to the compressed air pipe, which in turn is connected to an external air source, ensuring the stability of the compressed gas supply and providing sufficient power for cleaning operations before lubrication and atomization of lubricating oil. The jet solenoid valve connected in series on the compressed air pipe can control the on / off of the compressed gas. It can synchronously trigger the jet action according to the signal of the proximity switch, first cleaning the dust and impurities on the pin teeth surface with gas before oil lubrication, which greatly improves the lubrication effect. Moreover, the jet solenoid valve is fixed to the first fixing bracket with bolts, which is firmly installed and has strong vibration resistance, avoiding the loosening or displacement of the jet solenoid valve due to vibration during long-term operation, and ensuring the stability and reliability of the air circuit control.

[0011] As a preferred embodiment of the present invention, the bottom of the lubricating oil nozzle pipeline is connected to an oil pipe, the oil pipe is connected in series with an oil supply solenoid valve, and the oil supply solenoid valve is bolted to the first fixing bracket. With the above technical solution, the bottom of the lubricating oil nozzle pipeline is connected to the oil pipe, and the oil pipe is connected in series with the oil supply solenoid valve. The oil supply solenoid valve can control the on / off state and supply of lubricating oil to achieve "on-demand lubrication" and avoid excessive consumption of lubricating oil to reduce lubrication costs. At the same time, the oil supply solenoid valve is fixed to the first fixing bracket by bolts, which makes the installation stable and the structure compact, which is convenient for wiring and later maintenance. It can also prevent the displacement of the oil supply solenoid valve due to equipment vibration, ensure the continuity and stability of oil supply, and prevent dry friction damage caused by oil interruption.

[0012] As a preferred embodiment of the present invention, a second fixing frame is bolted to the other side of the centerline of the support frame; By adopting the above technical solution, a second fixing frame is fixed on the other side of the center line of the support frame with bolts to form a symmetrical layout, so that the overall force of the device is balanced and the structural deformation caused by unilateral force is effectively avoided. At the same time, the second fixing frame provides a dedicated mounting carrier for the proximity switch, which can ensure the accurate installation position of the sensing component and provide a reliable guarantee for the signal detection of automatic lubrication.

[0013] As a preferred embodiment of the present invention, the proximity switch is bolted to the inner wall of the second fixed frame, and the sensing end of the proximity switch penetrates the wall of the second fixed frame and protrudes by five centimeters. Using the above technical solution, the proximity switch is fixed to the inner wall of the second mounting bracket with bolts. The installation is firm and has strong anti-interference and anti-vibration capabilities, which can adapt to the harsh working environment of the ring cooler and extend the service life of the proximity switch. Its sensing end penetrates through the wall of the second mounting bracket and protrudes by 5 cm, which shortens the detection distance with the pin and improves the sensitivity and accuracy of position detection. It can accurately capture the rotation position and speed signal of the pin and provide a precise basis for the synchronous triggering of the jet solenoid valve and the oil supply solenoid valve, realize the synchronous linkage between the lubrication action and the pin operation, avoid ineffective lubrication, further improve lubrication efficiency, and ensure the transmission reliability of the pin and gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This device establishes a solid foundation for stable operation through optimized core structural design. The support frame adopts a hollow structure with flange interfaces, which reduces its own weight and installation load pressure, and facilitates heat dissipation of components and subsequent maintenance. The high-strength bearings at both ends of the drive shaft reduce rotational friction, improve wear resistance and load-bearing capacity, and ensure stable power transmission. The symmetrical layout of the first and second fixed frames is fixed with bolts, which takes into account both connection firmness and disassembly convenience. The inclined tooth pressure structure of the gear, the cylindrical structure of the pin tooth, and the matching design of the pin tooth base optimize the meshing force distribution, reduce impact noise, and improve the versatility of components, reduce manufacturing costs and replacement difficulty. 2. The lubrication system is designed for precision and efficiency. The valve block has built-in lubricating oil nozzles and air intake pipes, which not only protect the pipes from external damage, but also shorten the lubrication distance by protruding the pipes by 5 cm. The bottom internal thread interface ensures the sealing of the connection with the oil pipe and prevents lubricating oil leakage. The conical nozzle structure enables full atomization of compressed gas and lubricating oil, and the trumpet-shaped nozzle expands the spray coverage area, eliminating lubrication dead spots on the pin meshing surface and surrounding key parts. The precise control of the air jet solenoid valve and the oil supply solenoid valve achieves "on-demand lubrication", avoiding excessive consumption of lubricating oil and further reducing operating costs. 3. The device features intelligent linkage and strong adaptability. The proximity switch on the second fixed frame has a protruding sensing end design, which shortens the detection distance and improves the signal capture accuracy. This provides a reliable basis for the synchronous triggering of the jet solenoid valve and the oil supply solenoid valve, realizing the linkage process of "jet cleaning first, oil lubrication later". It is effectively adapted to the harsh working environment of the ring cooler. The overall structure is compact and highly standardized, which not only reduces manual intervention, but also extends the service life of core components such as gears and pins, ensuring the long-term efficient and stable operation of the ring cooler. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of the present invention; Figure 2 This is a schematic diagram of the support frame and drive shaft structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a schematic diagram of the left-side structure of the present invention; Figure 5 This is a schematic diagram of the drive shaft and gear structure of the present invention; Figure 6 This is a side view of the support frame structure of the present invention; Figure 7 This is a schematic diagram of the oil pipe and oil supply solenoid valve structure of the present invention; Figure 8 This is a schematic diagram of the valve block and lubricating oil nozzle pipeline structure of the present invention; Figure 9This is a schematic diagram of the lubricating oil nozzle pipeline and air intake pipeline structure of the present invention; Figure 10 This is a schematic diagram of the second fixing frame and the proximity switch structure of the present invention; Figure 11 This is the electrical schematic diagram of the lubrication mechanism of the present invention.

[0016] In the diagram: 1. Support frame; 2. Drive shaft; 3. Gear; 4. Pin; 5. Pin base; 6. First fixed frame; 7. Second fixed frame; 8. Valve block; 9. Lubricating oil nozzle pipeline; 10. Oil pipe; 11. Oil supply solenoid valve; 12. Compressed air pipe; 13. Jet solenoid valve; 14. Intake pipeline; 15. Proximity switch. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-11 The technical solution of the present invention is: an automatic lubrication device for pin teeth of an annular cooler; including a support frame 1, a drive shaft 2, a gear 3, pin teeth 4, a pin tooth base 5, a first fixed frame 6, a second fixed frame 7, a valve block 8, a lubricating oil nozzle pipeline 9, an oil pipe 10, an oil supply solenoid valve 11, a compressed air pipe 12, a jet solenoid valve 13, an air intake pipeline 14, and an inductive proximity switch 15; A lubrication mechanism is provided on the side of the support frame 1. The lubrication mechanism includes a first fixed frame 6, a valve block 8, a lubricating oil nozzle pipe 9, an oil pipe 10, an oil supply solenoid valve 11, a compressed air pipe 12, a jet solenoid valve 13, and an air intake pipe 14. The oil pipe 10 and the oil supply solenoid valve 11 are installed below the lubricating oil nozzle pipe 9, and the air pipe 12 and the jet solenoid valve 13 are installed on the side of the air intake pipe 14. The lubricating oil nozzle pipe 9 and the air intake pipe 14 are located inside the valve block 8.

[0019] The support frame 1 has a hollow structure. The drive shaft 2 is rotatably connected to the side of the support frame 1. High-strength bearings are configured at the connection points between the drive shaft 2 and the upper and lower ends of the support frame 1. The bottom input end of the support frame 1 has a flange interface structure. The hollow structure of the support frame 1 can significantly reduce the weight of the device itself to reduce the installation load pressure, facilitate heat dissipation of internal components, and provide sufficient operating space for later maintenance. The high-strength bearings configured at the connection points between the drive shaft 2 rotatably connected to the side of the support frame 1 and the upper and lower ends of the support frame 1 can effectively reduce the frictional resistance of the drive shaft 2 during rotation, improve wear resistance and load-bearing capacity, and ensure the long-term stable operation of the drive shaft 2. The flange interface structure at the bottom input end of the support frame 1 not only has a firm connection and excellent sealing performance, but also enables docking with external components, while simplifying the installation and disassembly process and improving the assembly efficiency of the device. A fixed gear 3 is mounted on the outside of the drive shaft 2. The tooth pressing part of the gear 3 is a bevel structure. The gear 3 mounted on the outside of the drive shaft 2 has a bevel structure in its tooth pressing part. During meshing, the tooth surface contact area of ​​the gear 3 and the pin tooth 4 is more reasonably distributed, the force is more even, and the tooth surface damage caused by local stress concentration is avoided. At the same time, it can reduce the impact and noise generated during meshing, improve the transmission efficiency of the gear 3 and the pin tooth 4, extend the service life of the gear 3, and ensure the smoothness of power transmission. The drive shaft 2 is meshed with the pin 4. The pin 4 adopts a cylindrical structure, and the pin base 5 is fitted on the upper and lower sides of the pin 4. The drive shaft 2 and the pin 4 adopt a meshing connection method, which has high transmission accuracy and low power loss, and can ensure the stable and reliable power transmission during the operation of the ring cooler. The pin 4 adopts a cylindrical structure, and the standardized design makes its processing technology mature and highly versatile. It is not only easy to mass-produce and reduce manufacturing costs, but also eliminates the need for customization when replacing it later, thus improving the convenience of replacement. The pin base 5 fitted on the upper and lower sides of the pin 4 can effectively limit the axial movement of the pin 4, and play a role in fixing and protecting the pin 4, avoiding meshing deviation caused by displacement, and further extending the service life of the pin 4. The first fixed frame 6 is bolted to one side of the centerline of the support frame 1. The first fixed frame 6 is installed on one side of the centerline of the support frame 1 by bolting. This not only provides high connection strength and good stability, effectively resisting the vibration generated during the operation of the ring cooler and preventing the first fixed frame 6 from loosening, but also has the advantages of convenient disassembly and adjustment. The installation position of the first fixed frame 6 can be flexibly adjusted according to the actual lubrication needs. At the same time, it provides convenience for the subsequent maintenance and replacement of the lubrication mechanism and ensures the installation efficiency of the lubrication mechanism. The valve block 8 is bolted to the inner wall of the first fixing frame 6. A lubricating oil nozzle pipe 9 is embedded within the valve block 8. The lubricating oil nozzle pipe 9 penetrates the side wall of the first fixing frame 6 and protrudes five centimeters. The bottom of the lubricating oil nozzle pipe 9 has an internal thread interface. The left side of the lubricating oil nozzle pipe 9 connects to the air intake pipe 14. The connection between the air intake pipe 14 and the lubricating oil nozzle pipe 9 is a conical nozzle structure. The right side of the lubricating oil nozzle pipe 9 has a flared nozzle. The valve block 8, firmly fixed to the inner wall of the first fixing frame 6 by bolts, protects the embedded lubricating oil nozzle pipe 9 and air intake pipe 14 from damage by external impacts, while also ensuring the pipe's position. To ensure accurate lubrication direction, the lubricating oil nozzle pipe 9 is designed to penetrate the side wall of the first fixing bracket 6 and protrude by 5 cm, which can shorten the distance to the pin tooth 4 and improve lubrication accuracy. The internal thread interface structure at the bottom has excellent sealing performance when connected to the oil pipe 10, which can effectively prevent lubricating oil leakage and facilitate maintenance and replacement. The conical nozzle structure at the connection between the air intake pipe 14 connected to the left side of the lubricating oil nozzle pipe 9 and the lubricating oil nozzle pipe 9 can fully mix and atomize the compressed gas and lubricating oil. The trumpet-shaped nozzle on the right side of the lubricating oil nozzle pipe 9 can expand the coverage of lubricating oil spray, ensuring that the meshing surface of the pin tooth 4 and the surrounding key parts are fully lubricated and avoiding lubrication dead corners. The intake pipe 14 is connected to the compressed air pipe 12, which is connected to an external air source. The compressed air pipe 12 is connected in series with the jet solenoid valve 13, which is bolted to the first fixed frame 6. The intake pipe 14 is connected to the compressed air pipe 12, and the compressed air pipe 12 is connected to an external air source, which can ensure the stability of the compressed gas supply and provide sufficient power for cleaning operations before lubrication and atomization of lubricating oil. The jet solenoid valve 13 connected in series on the compressed air pipe 12 can realize the control of the compressed gas on and off. It can synchronously trigger the jet action according to the signal of the proximity switch 15. First, the gas cleans the dust and impurities on the surface of the pin teeth 4 before oil lubrication, which greatly improves the lubrication effect. The jet solenoid valve 13 is fixed to the first fixed frame 6 by bolts, which is firmly installed and has strong vibration resistance, avoiding the loosening or displacement of the jet solenoid valve 13 due to vibration during long-term operation, and ensuring the stability and reliability of the air circuit control. The bottom of the lubricating oil nozzle pipe 9 is connected to the oil pipe 10, and the oil pipe 10 is connected in series with the oil supply solenoid valve 11. The oil supply solenoid valve 11 is fixed to the first fixed frame 6 with bolts. The bottom of the lubricating oil nozzle pipe 9 is connected to the oil pipe 10, and the oil pipe 10 is connected in series with the oil supply solenoid valve 11. The oil supply solenoid valve 11 can control the on / off state and supply of lubricating oil to achieve "on-demand lubrication" and avoid excessive consumption of lubricating oil to reduce lubrication costs. At the same time, the oil supply solenoid valve 11 is fixed to the first fixed frame 6 with bolts, which makes the installation stable and the structure compact, which is convenient for wiring and later maintenance. It can also prevent the displacement of the oil supply solenoid valve 11 due to equipment vibration, ensure the continuity and stability of the oil supply, and prevent dry friction damage caused by oil interruption. The second fixing frame 7 is bolted to the other side of the centerline of the support frame 1, forming a symmetrical layout. This ensures that the overall force of the device is balanced, effectively avoiding structural deformation caused by unilateral force. At the same time, the second fixing frame 7 provides a dedicated mounting carrier for the proximity switch 15, ensuring the accuracy of the installation position of the sensing component and providing reliable guarantee for the signal detection of automatic lubrication. The proximity switch 15 is bolted to the inner wall of the second fixed frame 7. The sensing end of the proximity switch 15 penetrates the wall of the second fixed frame 7 and protrudes by 5 cm. The proximity switch 15 is fixed to the inner wall of the second fixed frame 7 by bolts. The installation is firm and has strong anti-interference and anti-vibration capabilities. It can adapt to the harsh working environment of the ring cooler and extend the service life of the proximity switch 15. Its sensing end penetrates the wall of the second fixed frame 7 and protrudes by 5 cm, which shortens the detection distance with the pin 4 and improves the sensitivity and accuracy of position detection. It can accurately capture the rotation position and speed signal of the pin 4, and provide accurate basis for the synchronous triggering of the jet solenoid valve 13 and the oil supply solenoid valve 11. It realizes the synchronous linkage between the lubrication action and the operation of the pin 4, avoids ineffective lubrication, further improves lubrication efficiency, and ensures the transmission reliability of the pin 4 and the gear 3.

[0020] Working principle: When using an automatic lubrication device for the pin teeth of a ring cooler, the AC380V 50Hz main power supply is connected, the control circuit of the main circuit breaker QF1 and the branch circuit breaker QF2, and the power circuit of QF3 are closed, the power indicator light is lit, and the system enters the standby state. If the "Automatic" mode SA1 is selected and switched to automatic mode, the timer switch triggers the start signal according to the preset lubrication cycle. At the same time, the pressure control instrument, in conjunction with the pressure transmitters Pi1+ and Pi1-, detects the pressure in the lubricating oil pipeline: when the pressure is lower than the lower limit, the pressure control instrument outputs a signal to energize the KA1 coil, the normally open contact of KA1 closes, triggering the KM1 contactor to operate, energizing the lubricating oil pressurizing pump M1 to deliver lubricating oil to oil pipe 10 and pressurize it; when the pressure reaches the upper limit, the pressure control instrument controls KA1 to de-energize, KM1 to disconnect, the pressurizing pump stops working, and the pipeline maintains the set working pressure to prepare for lubrication; If you select "Manual" mode, SA1 switches to manual mode, and you can directly control the start and stop of the pressure pump by pressing the button. This is suitable for debugging or emergency lubrication scenarios. SQ1, corresponding to the proximity switch 15 in the mechanical structure, detects the rotation position of the pin 4 in real time. When the pin 4 moves to the preset lubrication position with the ring cooler, SQ1 is triggered and outputs a switch signal to the control circuit. This signal energizes the jet control relay KA2, and its normally open contact closes, connecting the power circuit of the jet solenoid valve 13. The jet solenoid valve 13 opens. An external air source is delivered to the conical nozzle of the lubricating oil nozzle pipeline 9 through the compressed air pipe 12 and the air inlet pipe 14. The high-speed airflow is sprayed onto the meshing surface of the pin 4 and the gear 3, quickly removing dust, iron filings and other impurities attached to the surface, clearing obstacles for subsequent lubrication, and avoiding impurities from affecting the lubrication effect or aggravating component wear. After the air jet cleaning continues for a preset time, the control circuit triggers the oil supply control relay KA3 to be energized, and the oil supply solenoid valve 11 opens. At this time, the conical nozzle structure at the connection between the air intake pipe 14 and the lubricating oil nozzle pipe 9 forms a narrow section with the Venturi effect. When the high-speed compressed gas passes through this narrow section, the flow rate increases significantly, forming a local low-pressure area. Meanwhile, the bottom of the lubricating oil nozzle pipe 9 is pre-maintained with high pressure by the pressurizing pump, and a significant pressure difference is formed between the high and low pressure areas. Under the adsorption effect of the pressure difference, the lubricating oil in the oil pipe 10 is quickly drawn into the narrow section and mixed with the compressed gas. The oil mist is sprayed through the funnel-shaped nozzle on the right side of the lubricating oil nozzle pipe 9 and covers the meshing surface of the pin 4 and gear 3 and the surrounding key parts. When the proximity switch SQ1 detects that the pin 4 leaves the lubrication station, its output signal disappears, KA2 and KA3 are de-energized one after another, the air jet solenoid valve 13 and the oil supply solenoid valve 11 are closed, and the system returns to the standby state. When the timer switch triggers the next lubrication cycle, or when the pressure control instrument detects that the pipeline pressure is lower than the lower limit, the pressurization pump starts again and repeats the above "detection-cleaning-lubrication" cycle.

[0021] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic lubrication device for pin teeth of a ring cooler, comprising a support frame (1); characterized in that: The support frame (1) is provided with a lubrication mechanism on its side. The lubrication mechanism includes a first fixed frame (6), a valve block (8), a lubricating oil nozzle pipeline (9), an oil pipe (10), an oil supply solenoid valve (11), a compressed air pipe (12), a jet solenoid valve (13), and an air intake pipeline (14). The oil pipe (10) and the oil supply solenoid valve (11) are installed below the lubricating oil nozzle pipeline (9). The air pipe (12) and the jet solenoid valve (13) are installed on the side of the air intake pipeline (14). The lubricating oil nozzle pipeline (9) and the air intake pipeline (14) are located inside the valve block (8).

2. The automatic lubrication device for pin teeth of a ring cooler according to claim 1, characterized in that, The support frame (1) is a hollow structure. The support frame (1) is rotatably connected to the drive shaft (2) on the side. High-strength bearings are configured at the connection points between the drive shaft (2) and the upper and lower ends of the support frame (1). The bottom input end of the support frame (1) is a flange interface structure.

3. The automatic lubrication device for pin teeth of a ring cooler according to claim 2, characterized in that, The drive shaft (2) is fitted with a fixed gear (3) on its outer side, and the tooth pressing part of the gear (3) is a sloping structure.

4. The automatic lubrication device for pin teeth of a ring cooler according to claim 3, characterized in that, The drive shaft (2) is meshed with the pin (4), the pin (4) adopts a cylindrical structure, and the pin base (5) is fitted on the upper and lower sides of the pin (4).

5. The automatic lubrication device for pin teeth of a ring cooler according to claim 4, characterized in that, The first fixing frame (6) is bolted to one side of the centerline of the support frame (1).

6. The automatic lubrication device for pin teeth of a ring cooler according to claim 5, characterized in that, The valve block (8) is fixed by bolts on the inner wall of the first fixing frame (6). The lubricating oil nozzle pipeline (9) is embedded in the valve block (8). The lubricating oil nozzle pipeline (9) passes through the side wall of the first fixing frame (6) and protrudes by 5 cm. The bottom of the lubricating oil nozzle pipeline (9) is an internal thread interface structure. The left side of the lubricating oil nozzle pipeline (9) is connected to the air intake pipeline (14). The connection between the air intake pipeline (14) and the lubricating oil nozzle pipeline (9) is a conical nozzle structure. The right side of the lubricating oil nozzle pipeline (9) is a trumpet-shaped nozzle.

7. The automatic lubrication device for pin teeth of a ring cooler according to claim 6, characterized in that, The intake pipe (14) is connected to the compressed air pipe (12), the compressed air pipe (12) is connected to an external air source, and the compressed air pipe (12) is connected in series with the jet solenoid valve (13), the jet solenoid valve (13) is bolted to the first fixing frame (6).

8. The automatic lubrication device for pin teeth of a ring cooler according to claim 7, characterized in that, The bottom of the lubricating oil nozzle pipeline (9) is connected to the oil pipe (10), the oil pipe (10) is connected in series with the oil supply solenoid valve (11), and the oil supply solenoid valve (11) is bolted to the first fixing bracket (6).

9. The automatic lubrication device for pin teeth of a ring cooler according to claim 8, characterized in that, The second fixing frame (7) is bolted to the other side of the centerline of the support frame (1).

10. An automatic lubrication device for pin teeth of a ring cooler according to claim 9, characterized in that, The proximity switch (15) is bolted to the inner wall of the second fixing frame (7). The sensing end of the proximity switch (15) passes through the wall of the second fixing frame (7) and protrudes by five centimeters.

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