Lubrication system for a bottom belt mechanism of a tobacco storage bin, bottom belt mechanism and method of lubricating the same

Abstract

The application discloses a lubricating system of a bottom belt mechanism of a tobacco storage cabinet, the bottom belt mechanism and a lubricating method. The lubricating system comprises an automatic lubricating device, a wear and abnormal sound detecting device and a supporting wheel jam detecting device. The supporting wheel jam detecting device is connected to a ring-shaped bearing chain in the bottom belt mechanism of the tobacco storage cabinet and is used for detecting the jam situation of the supporting wheels on the ring-shaped bearing chain. The wear and abnormal sound detecting device is used for detecting the pin shaft wear and abnormal sound situation of the supporting wheels in the ring-shaped bearing chain of the bottom belt mechanism of the tobacco storage cabinet. The automatic lubricating device lubricates the ring-shaped bearing chain according to the detected jam situation of the supporting wheels and the pin shaft wear and abnormal sound situation. The bottom belt mechanism of the tobacco storage cabinet comprises the lubricating system, a plurality of outer chain pieces, a plurality of inner chain pieces, a plurality of supporting wheels and a plurality of bottom belt plates. The lubricating system is used for lubricating the bottom belt mechanism of the tobacco storage cabinet.

Description

Technical Field

[0001] This invention relates to the field of tobacco production technology, and in particular to a lubrication system, a bottom belt mechanism, and a lubrication method for a tobacco storage cabinet. Background Technology

[0002] In tobacco processing production lines, tobacco storage cabinets are a widely used type of storage equipment. Each batch of production material weighs several thousand kilograms, so the storage cabinets are characterized by their large size and heavy operating load. Tobacco storage cabinets mostly adopt a bottom belt and side chain load-bearing mechanism. If the bottom belt chain pins lack lubrication, they will generate significant frictional resistance, which can easily cause problems such as chain jamming, dead knots, wear and abnormal noise. In severe cases, it can even lead to the breakage of the bottom belt drive shaft or drive chain.

[0003] Currently, the industry mainly uses manual lubrication for the bottom chain of tobacco storage cabinets. Manual lubricant is sprayed onto the chain nodes to create a pressure oil film on the pins, thus reducing friction between the load-bearing rollers and the pins. However, due to the large size of tobacco storage cabinets and the numerous lubrication points, manual lubrication is labor-intensive and time-consuming. Furthermore, the pressure oil film created by the sprayed lubricant is thin and easily evaporates, resulting in poor effectiveness and durability of manual lubrication. The lack of automatic detection devices means that manual lubrication relies on periodic processes, which can lead to repeated lubrication and increased lubrication costs.

[0004] Therefore, in order to address the shortcomings of current manual lubrication methods, an integrated automatic detection and lubrication system based on automatic control technology will be designed to improve the lubrication effect and increase lubrication efficiency of the storage tank. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a lubrication system, a bottom belt mechanism and a lubrication method for a tobacco storage cabinet bottom belt mechanism, so as to solve the problems of poor lubrication effect and high lubrication cost of the bottom belt mechanism of tobacco storage cabinet in the prior art.

[0006] The present invention first provides a lubrication system for the bottom belt mechanism of a tobacco storage cabinet, the lubrication system including an automatic lubrication device, a wear and noise detection device, and a roller jamming detection device.

[0007] The automatic lubrication device includes: an adjustable bracket, a temporary oil tank, a lubrication solenoid valve, and a drip tube. The adjustable bracket is installed on the side of the support rail. The temporary oil tank is connected to the adjustable bracket and is equipped with an oil level detection device. One end of the drip tube is connected to the temporary oil tank, and the other end of the drip tube is positioned above the lubrication oil passage. The lubrication solenoid valve is connected to the drip tube and is also connected to the control unit.

[0008] The wear and noise detection device includes an upper sound insulation channel, a lower sound insulation channel, and a sound analysis sensor. The upper and lower sound insulation channels form an annular sound insulation channel that wraps around the annular load-bearing chain. The sound analysis sensor is located inside the annular sound insulation channel and is used to collect abnormal noise sounds from the annular load-bearing chain within the annular sound insulation channel and convert them into electrical signals. The generated electrical signals are transmitted to a host computer via a communication unit, and the host computer is connected to a control unit.

[0009] The roller jamming detection device is connected to the annular support chain in the bottom belt mechanism of the tobacco storage cabinet, and is used to detect the jamming of the support rollers on the annular support chain. The wear and noise detection device is used to detect the wear and noise of the pins of the support rollers in the annular support chain in the bottom belt mechanism of the tobacco storage cabinet. The automatic lubrication device lubricates the annular support chain according to the detected jamming of the support rollers and the wear and noise of their pins.

[0010] Preferably, the sound analysis sensor includes a sound inlet cover, a dust cover, a sound channel, a silencing cavity, a sensor, and an analyzer. The dust cover is installed at the head of the sound inlet cover. The sound inlet cover is connected to the sound channel. An analyzer and a sensor are disposed in the sound channel. The analyzer and the sensor are interconnected. The silencing cavities are disposed on both sides of the sound channel.

[0011] Preferably, a sound insulation detection channel is provided on the upper sound insulation channel, the sound insulation detection channel is connected to the upper sound insulation channel, and the sound analysis sensor is disposed in the sound insulation detection channel.

[0012] Preferably, the automatic lubrication device further includes a main oil tank, an electromagnetic pump, and a return solenoid valve. The main oil tank is connected to a first branch oil pipe and a second branch oil pipe, which are connected to the main oil pipe. The main oil pipe is connected to the temporary storage oil tank. The electromagnetic pump is connected to the first branch oil pipe and has an oil suction head connected to it. The oil suction head extends into the main oil tank. The return solenoid valve is connected to the second branch oil pipe.

[0013] Preferably, the automatic lubrication device further includes a photoelectric detection device, an electrical control cabinet, and a communication unit installed in the electrical control cabinet. The control unit is installed in the electrical control cabinet, which is equipped with an indicator light, a display screen, and a power switch. The two photoelectric detection devices are symmetrically connected to the adjustable bracket, so that the two photoelectric detection devices are located at the upper and lower ends of the gap between the bottom strip plates.

[0014] Preferably, the roller jamming detection device includes: a detection roller, a detection bracket, a trigger bracket, a start proximity switch, a stop proximity switch, and a detection switch; the detection roller has a cam flange formed on it, the detection roller is connected to an annular support chain, the trigger bracket is connected to the annular support chain, and the trigger bracket is positioned on the annular support chain corresponding to the position of the detection roller; the detection bracket is located below the detection roller; the start proximity switch and the stop proximity switch are respectively connected to both ends of the detection bracket; a plurality of detection switches are connected to the detection bracket and located between the start proximity switch and the stop proximity switch, and are such that the cam flange on the detection roller contacts the detection switch.

[0015] The detection switch includes a pressing body, a support body, a spring, and a pressing switch. The support body is connected to the detection bracket, the spring is disposed within the support body, the pressing body is connected to the support body and to the spring, and the spring is connected to the pressing switch.

[0016] The present invention also provides a bottom belt mechanism for a tobacco storage cabinet. The bottom belt mechanism includes the lubrication system described above, and further includes: multiple outer chain plates, multiple inner chain plates, multiple load-bearing rollers, and multiple bottom belt plates. The load-bearing rollers have axially formed roller rims. The multiple load-bearing rollers are arranged horizontally linearly to form two sets of horizontally linearly arranged load-bearing roller assemblies. The roller rims are located on the inner side of the two sets of load-bearing roller assemblies and are arranged opposite to each other. In each set of load-bearing roller assemblies, the inner chain plates are connected to both ends of the load-bearing roller, and the outer chain plates are connected to both ends of the load-bearing roller and located outside the inner chain plates. The outer chain plates and the inner chain plates surround the load-bearing roller to form an annular load-bearing chain. The annular load-bearing chain is disposed on the load-bearing track. The multiple bottom belt plates are connected between the two annular load-bearing chains, and a gap is formed between the multiple bottom belt plates. In the annular load-bearing chain, every two load-bearing rollers are connected by one inner chain plate, and the two load-bearing rollers are respectively connected to the adjacent outer chain plate.

[0017] The outer chain plate and the inner chain plate are connected to the pin of the supporting roller. On the pin near the supporting roller, the outer chain plate and the inner chain plate are provided with through holes. The center of the diameter of the through holes on the outer chain plate and the inner chain plate is located on the same straight line, so that the through holes on the outer chain plate and the inner chain plate form a lubricating oil channel. The outer chain plate is provided with a drain port, which is connected to the lubricating oil channel.

[0018] The present invention also provides a lubrication method for the bottom belt mechanism of a tobacco storage cabinet, the lubrication method being used to lubricate the bottom belt mechanism of the tobacco storage cabinet described above, the lubrication method comprising:

[0019] S1. Connect the lubrication solenoid valve to the control unit, and connect the control unit to the host computer.

[0020] S2. Use a wear and noise detection device to detect the wear and noise of the bearing roller pin in the annular bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a first electrical signal, or use a roller jamming detection device to detect the jamming of the bearing roller in the annular bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a second electrical signal, and transmit the first electrical signal and the second electrical signal to the host computer.

[0021] S3. After the host computer performs identification processing on the first electrical signal and the second electrical signal, it generates corresponding first control signal and second control signal respectively. The control unit controls the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal and the second control signal.

[0022] Preferably, the host computer is equipped with an abnormal noise audio database of the support roller under different conditions. The host computer performs data matching between the first electrical signal and the abnormal noise audio database and forms a first control signal, which is then sent to the control unit.

[0023] Preferably, the control unit can identify the first control signal and the second control signal respectively to control the automatic lubrication device to lubricate the annular load-bearing chain; or when the control unit identifies the first control signal and the second control signal simultaneously, the control unit can control the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal or the second control signal.

[0024] Compared with existing technologies, this invention provides a bottom belt mechanism for a cigarette storage cabinet. This bottom belt mechanism can be used in cigarette storage cabinets, and it features lubrication channels and outlets on the chain links, allowing lubricating oil to smoothly reach the pin positions of the support rollers. This effectively lubricates the pins, ensuring smooth transmission between the chain links and the pins and preventing chain breakage. To lubricate the bottom belt mechanism, a lubrication system is included. This system includes an automatic lubrication device, a wear and noise detection device, and a roller jamming detection device. The wear and noise detection device detects wear and noise from the pins of the support rollers within the annular support chain of the bottom belt mechanism. The roller jamming detection device detects jamming of the support rollers on the annular support chain. The automatic lubrication device provides lubricating oil to the bottom belt mechanism based on the detected conditions. Based on the lubrication system provided by this invention, this invention also provides a lubrication method for the bottom belt mechanism, enabling automated lubrication of the cigarette storage cabinet's bottom belt mechanism. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the bottom belt mechanism of the tobacco storage cabinet provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of the automatic lubrication device for the lubrication system provided by the present invention;

[0028] Figure 3 A schematic diagram of the structure of the lubrication system roller jamming detection device provided by the present invention;

[0029] Figure 4 A schematic diagram of the wear and noise detection device for the lubrication system provided by the present invention;

[0030] Figure 5 for Figure 4 Side view of the wear and noise detection device. Detailed Implementation

[0031] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Figure 1 This is a schematic diagram of the bottom belt mechanism of the tobacco storage cabinet provided by the present invention. Figure 1This invention provides a bottom belt mechanism for a cigarette storage cabinet. The bottom belt mechanism includes multiple outer chain links 1, multiple inner chain links 2, multiple load-bearing rollers 3, and multiple bottom belt plates 5. Each load-bearing roller 3 has an axially formed roller rim 4. The multiple load-bearing rollers 3 are arranged horizontally in a linear fashion, forming two sets of horizontally arranged load-bearing roller assemblies. The roller rim 4 is located on the inner side of each set of load-bearing roller assemblies and is positioned opposite to the other end. In each set of load-bearing roller assemblies, the inner chain links 2 connect to both ends of the load-bearing roller 3, and the outer chain links 1 connect to... At both ends of the bearing roller 3 and outside the inner chain piece 2, the outer chain piece 1 and the inner chain piece 2 surround the bearing roller 3 to form an annular bearing chain. The annular bearing chain is disposed on the bearing track 9. A plurality of bottom belt plates 5 are connected between two annular bearing chains, and a bottom belt plate gap 7 is formed between the plurality of bottom belt plates 5. In the annular bearing chain, each pair of bearing rollers 3 is connected by an inner chain piece 2, and the two bearing rollers 3 are respectively connected to the adjacent outer chain piece 1.

[0036] The outer chain piece 1 and the inner chain piece 2 are provided with through holes. The outer chain piece 1 and the inner chain piece 2 are connected to the shaft of the bearing roller 3. On the shaft of the bearing roller 3, the center of the diameter of the through holes on the outer chain piece 1 and the inner chain piece 2 is located on the same straight line, so that the through holes on the outer chain piece 1 and the inner chain piece 2 form a lubricating oil channel 8. The outer chain piece 1 is provided with a drain port, which is connected to the lubricating oil channel 8.

[0037] More specifically, the lubricating oil passage 8 is an inclined lubricating oil passage, and the drain port is an inclined opening.

[0038] See Figure 1 Specifically, among the multiple bottom belt plates 5, the two ends of one of the two adjacent bottom belt plates 5 are respectively connected to the outer chain plates 1 of the two annular carrying chains, and the two ends of the other bottom belt plate 5 are respectively connected to the inner chain plates 2 of the two annular carrying chains; wherein, a bottom belt tarpaulin 6 is connected to the bottom belt plate 5, and the bottom belt tarpaulin 6 is used to support the materials in the storage tank.

[0039] Specifically, a large number of load-bearing rollers 3 are installed on both sides of the bottom belt mechanism to support the weight of the cabinet. The steel load-bearing rollers are evenly arranged on the two load-bearing tracks 9. The inner and outer ends of the load-bearing rollers 3 are roller rims 4 with a larger diameter. The roller rims 4 are used to prevent the load-bearing rollers 3 from deviating from the tracks.

[0040] Specifically, the distance between the track-bearing rollers 3 is determined by the outer chain piece 1 and the inner chain piece 2. The two ends of the chain piece are fixed to the pins of the two adjacent bearing rollers, so the chain piece connects all the bearing rollers on one side of the storage tank to form a ring-shaped bearing chain.

[0041] Specifically, in order to achieve better lubrication, there is a slightly downward-sloping through hole at each end of the chain link. At the upper part of the bearing roller shaft, the through holes of the outer and inner chain links will overlap to form an oil passage from the outside to the inside. There is a drain port on the outside of the chain link to facilitate the entry of lubricating oil into the oil passage, so as to improve the lubrication effect of the lubricating oil on the pin shaft.

[0042] The bottom belt mechanism provided by the present invention utilizes the outer chain plate 1, the inner chain plate 2, and the bearing roller 3 to form a ring bearing chain, so that the bottom belt plate 5 can move with the outer chain plate 1 and the inner chain plate 2, thereby enabling the bottom belt tarpaulin 6 located on the bottom belt plate 5 to receive and transport materials in the horizontal direction.

[0043] This invention provides a lubrication system for the bottom belt mechanism of a cigarette storage cabinet. The lubrication system includes an automatic lubrication device, a wear and noise detection device, and a roller jamming detection device. The functions of the automatic lubrication device, the wear and noise detection device, and the roller jamming detection device are as follows: the roller jamming detection device is connected to the annular support chain in the bottom belt mechanism of the cigarette storage cabinet and is used to detect the jamming of the support roller 3 on the annular support chain; the wear and noise detection device is used to detect the wear and noise of the pin of the support roller 3 in the annular support chain in the bottom belt mechanism of the cigarette storage cabinet; and the automatic lubrication device lubricates the annular support chain according to the detected jamming of the support roller 3 and the wear and noise of its pin.

[0044] Figure 2 A schematic diagram of the automatic lubrication device of the lubrication system provided by the present invention is shown below. Figure 2 The automatic lubrication device includes: an adjustable bracket 11, a temporary oil tank 12, a lubrication solenoid valve 13, and a drip tube 14. The adjustable bracket 11 is installed on the side of the bearing rail 9. The temporary oil tank 12 is connected to the adjustable bracket 11. The temporary oil tank 12 is equipped with a temporary oil tank level detection device 15. One end of the drip tube 14 is connected to the temporary oil tank 12, and the other end of the drip tube 14 is located above the lubrication oil passage 8. The lubrication solenoid valve 13 is connected to the drip tube 14 and is connected to the control unit.

[0045] See Figure 2In a preferred embodiment, the automatic lubrication device further includes photoelectric detection devices 10. Two photoelectric detection devices 10 are symmetrically connected to the adjustable bracket 11, such that the two photoelectric detection devices 10 are located at the upper and lower ends of the bottom belt plate gap 7. The photoelectric detection devices 10 can detect the bottom belt plate gap 7 on the bottom belt mechanism, and determine whether the bearing roller 3 has reached the lubrication trigger position by detecting the position of the bottom belt plate gap 7.

[0046] See Figure 2 In a preferred embodiment, the automatic lubrication device further includes a main oil tank 16, an electromagnetic pump 17, and a return solenoid valve 18. The main oil tank 16 is connected to a first branch oil pipe 41 and a second branch oil pipe 42. The first branch oil pipe 41 and the second branch oil pipe 42 are connected to a main oil pipe 43. The main oil pipe 43 is connected to the temporary storage oil tank 12. The electromagnetic pump 17 is connected to the first branch oil pipe 41. An oil suction head 21 is connected to the electromagnetic pump 17 and extends into the main oil tank 16. The return solenoid valve 18 is connected to the second branch oil pipe 42.

[0047] See Figure 2 In a preferred embodiment, the automatic lubrication device further includes an electrical control cabinet 23 and a communication unit installed in the electrical control cabinet 23. The control unit is installed in the electrical control cabinet 23, and the electrical control cabinet 23 is equipped with an indicator light 24, a display screen 25 and a power switch 26.

[0048] When the photoelectric detection device 10 detects the gap 7 between the bottom belt and the automatic lubrication device described above, it indicates that the bearing roller 3 has reached the lubrication point. The control system then issues a command to open the lubrication solenoid valve 13, allowing lubricating oil to flow from the drip pipe 14 into the lubrication oil channel 8 to complete the lubrication process. A temporary oil tank level detection device 15 is installed in the temporary oil tank 12. When the oil level in the temporary oil tank 12 is lower than the set low oil level, the electromagnetic pump 17 is started, using the suction head 21 equipped with a filter to pump the lubricating oil from the main oil tank 16 into the temporary oil tank 12 until the oil level reaches the set high oil level. Opening the return solenoid valve 18 allows the lubricating oil in the temporary oil tank 12 to be returned to the main oil tank 16. The main oil tank 16 has a large capacity and is used to store the lubricating oil required by the automatic lubrication system. A filter screen 20 is installed under the oil filling port 19 of the main oil tank 16 to filter the lubricating oil. The main oil tank 16 is equipped with a main oil tank level detection device 22 to monitor the oil level in real time. The PLC control unit and communication unit of the automatic lubrication system are installed in the electrical control cabinet 23. The electrical control cabinet 23 is equipped with a power switch 26 and indicator lights 24 for operation, fault, and low oil alarm. At the same time, the electrical control cabinet 23 is equipped with a touch screen display 25, which allows local adjustment of the equipment working mode. The electrical control cabinet 23 maintains communication with the host computer to exchange real-time data and control commands.

[0049] Figure 4 This is a schematic diagram of the wear and noise detection device for the lubrication system provided by the present invention. Figure 5 for Figure 4 Side view of the wear and noise detection device, see reference. Figure 4 and Figure 5 The wear and noise detection device includes an upper sound insulation channel 33, a lower sound insulation channel 34, and a sound analysis sensor 35. The upper sound insulation channel 33 and the lower sound insulation channel 34 form an annular sound insulation channel, which wraps around the annular load-bearing chain. The sound analysis sensor 35 is installed inside the annular sound insulation channel. The sound analysis sensor 35 is used to collect the abnormal noise sound inside the annular load-bearing chain in the annular sound insulation channel and convert it into an electrical signal. The generated electrical signal is transmitted to the host computer through a communication unit. The host computer is connected to the control unit.

[0050] See Figure 4 In a preferred embodiment, the sound analysis sensor 35 includes a sound inlet cover 351, a dust cover 352, a sound channel 353, a noise reduction cavity 355, a sensor 356, and an analyzer 354. The dust cover 352 is installed on the head of the sound inlet cover 351. The sound inlet cover 351 is connected to the sound channel 353. The analyzer 354 and the sensor 356 are disposed in the sound channel 353. The analyzer 354 and the sensor 356 are connected to each other. The noise reduction cavities 355 are disposed on both sides of the sound channel 353.

[0051] See Figure 5 In a preferred embodiment, a sound insulation detection channel 36 is provided on the upper sound insulation channel 33, the sound insulation detection channel 36 is connected to the upper sound insulation channel 33, and the sound analysis sensor 35 is disposed in the sound insulation detection channel 36.

[0052] Specifically, to ensure good sound insulation and prevent external noise interference with the detection system, the sound analysis sensor 35 is located in the middle of the sound insulation channel to better collect abnormal noise from the bearing roller 3 entering the sound insulation channel. The head of the sound analysis sensor 35 is a horn-shaped sound inlet cover 351, and the head of the sound inlet cover 351 is equipped with a dust cover 352. The dust cover 352 keeps the rear sound channel 353 clean. Several sound-absorbing cavities 355 are arranged on both sides of the sound channel 353, and the sound-absorbing cavities 355 are filled with sound-absorbing material. This structure is to ensure that the sensor can eliminate interference from other directions and directionally collect noise within the sound insulation channel. The sensor 356 is located at the end of the sound channel 353. The abnormal noise emitted by the pin of the bearing roller 3 due to wear is collected and converted into an electrical signal by the analyzer 354 and the sensor 356. The signal is then sent to the host computer through the communication unit. An audio database of abnormal noises of the bearing roller under different wear conditions is established in advance in the host computer. The audio signal emitted by the sensor is compared with the database to determine whether it is a wear noise. If the frequency of the wear noise is higher than the set threshold, an alarm will be triggered and a command will be sent to the control unit of the automatic lubrication system.

[0053] In the aforementioned wear and noise detection device, in order to better collect audio signals, the upper sound insulation channel 33 and the lower sound insulation channel 34 form an annular sound insulation channel. The annular sound insulation channel wraps around the annular bearing chain. The bearing roller 3 and the chain piece are wrapped by the sound insulation channel. In order to enable the drip tube 14 in the automatic lubrication device to drip oil into the lubrication channel 8 while ensuring good audio collection, the drip tube 14 is inserted into the sound insulation channel.

[0054] Figure 3 This is a schematic diagram of the structure of the lubrication system roller jamming detection device provided by the present invention. Figure 3 The roller jamming detection device includes: a detection roller 27, a detection bracket 28, a trigger bracket 29, a start proximity switch 30, a stop proximity switch 31, and a detection switch 32. The detection roller 27 has a cam flange and is connected to an annular support chain. The trigger bracket 29 is connected to the annular support chain, and its position corresponds to that of the detection roller 27 on the annular support chain. The detection bracket 28 is located below the detection roller 27. The start proximity switch 30 and the stop proximity switch 31 are respectively connected to both ends of the detection bracket 28. Multiple detection switches 32 are connected to the detection bracket 28 and located between the start proximity switch 30 and the stop proximity switch 31, enabling the cam flange on the detection roller 27 to contact the detection switch 32.

[0055] See Figure 3In a preferred embodiment, the detection switch 32 includes a pressing body 321, a support body 322, a spring 323, and a pressing switch 324. The support body 322 is connected to the detection bracket 28, the spring 323 is disposed inside the support body 322, the pressing body 321 is connected to the support body 322 and connected to the spring 323, and the spring 323 is connected to the pressing switch 324.

[0056] Specifically, the difference between the detection roller 27 and the bearing roller 3 is that the detection roller 27 has a cam flange 270 formed on it. This cam flange 270 is used to trigger the detection switch 32 to determine the jamming state of the bearing roller 3. The number of detection rollers 27 and their arrangement in the annular bearing chain can be freely selected according to the storage tank model. The detection bracket 28 is arranged directly below the bearing roller flange 4 of the bearing roller 3, and the cam flange 270 of the detection roller 27 is precisely capable of triggering the detection switch 32.

[0057] The length of the detection bracket 28 should be greater than three times the circumference of the supporting roller 3. The start proximity switch 30 and the end proximity switch 31 are located on the head and tail sides of the detection bracket 28, respectively, and several numbered detection switches 32 are arranged in a row on the detection bracket 28.

[0058] When the pressing body 321 on the detection switch 32 is pressed, it will overcome the elastic force of the spring 323 and move along the inner side of the support knot 322, thereby triggering the pressing switch 324. After the force is applied, the pressing body 321 can automatically return to its original position under the action of the elastic force of the spring 323.

[0059] As the annular support chain moves as a whole, the trigger bracket 29 outside the detection roller 27 will trigger the start proximity switch 30 and the end proximity switch 31 in sequence. During this time, the detection roller 27 moves forward in a circular motion along the support track 9, so that the cam edge 270 on the detection roller 27 will have the opportunity to press the detection switch 32.

[0060] Specifically, if three consecutive numbered detection switches 32 are pressed, and the number of pressed detection switches 32 is less than two, then the supporting roller 3 is determined to be stuck. The above judgment conditions can be adjusted according to the storage tank model and the control program settings. The roller sticking detection device sends the detection result information to the control unit and the host computer.

[0061] The present invention also provides a lubrication method for the bottom belt mechanism of a tobacco storage cabinet, wherein the lubrication method employs the lubrication system described above, and the lubrication method includes:

[0062] S1. Connect the lubrication solenoid valve 13 to the control unit, and the control unit is connected to the host computer.

[0063] S2. Use a wear and noise detection device to detect the wear and noise of the bearing roller 3 pin in the annular bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a first electrical signal, or use a roller jamming detection device to detect the jamming of the bearing roller 3 in the annular bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a second electrical signal, and transmit the first electrical signal and the second electrical signal to the host computer.

[0064] S3. After the host computer performs identification processing on the first electrical signal and the second electrical signal, it generates corresponding first control signal and second control signal respectively. The control unit controls the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal and the second control signal.

[0065] In a preferred embodiment, the host computer is equipped with an abnormal noise audio database of the bearing roller 3 under different conditions. The host computer performs data pairing between the first electrical signal and the abnormal noise audio database and forms a first control signal, which is then sent to the control unit.

[0066] In a preferred embodiment, the control unit can identify the first control signal and the second control signal respectively to control the automatic lubrication device to lubricate the annular load-bearing chain; or when the control unit identifies the first control signal and the second control signal simultaneously, the control unit can control the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal or the second control signal.

[0067] In the lubrication method of the bottom belt mechanism of the tobacco storage cabinet described above, the upper computer, communication unit and control unit are used to realize the conversion of collected data, thereby realizing automated lubrication.

[0068] In summary, the wear noise detection device collects the abnormal noises emitted by the bottom belt mechanism due to wear, and compares them with the abnormal noise audio database using database technology to determine whether the abnormal noise is caused by wear. If the frequency of the wear noise is higher than the set value, it indicates that the pin of the bearing mechanism is severely worn, and then sends a command to the control unit of the automatic lubrication device.

[0069] The roller jamming detection device assesses the jamming status of each detection roller 27 to understand the entire side chain bearing mechanism. If the number of detection rollers 27 identified as jammed on one of the annular bearing chains exceeds a set value, it indicates that the entire bottom belt mechanism requires lubrication. In this case, the roller jamming detection device sends a command to the control unit of the automatic lubrication device.

[0070] Upon receiving a command from the roller jamming detection device or the wear and noise detection device, the automatic lubrication device will start. The electromagnetic pump 17 will pump lubricating oil from the main oil tank 16 into the temporary oil tank 12 according to the oil level in the temporary oil tank 12. The photoelectric detection device 10 will determine whether the supporting roller 3 has entered the lubrication point. When the supporting roller 3 enters the lubrication point, the lubrication solenoid valve 13 will open to allow lubricating oil to flow from the dropper 14 into the lubrication channel 8 to complete the lubrication process. The control unit will count each time a lubrication process is completed. When all the supporting rollers 3 on the entire bottom belt mechanism have completed the lubrication process, the automatic lubrication device will open the return solenoid valve 18 to return the lubricating oil to the main oil tank 16. After that, the automatic lubrication device will shut down and wait for the next lubrication command.

[0071] In summary, the present invention provides a bottom belt mechanism, lubrication system, and lubrication method for a tobacco storage cabinet, which can solve the problems of poor lubrication effect and high lubrication cost of the bottom belt mechanism of the tobacco storage cabinet in the prior art.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lubrication system for the bottom belt mechanism of a tobacco storage cabinet, characterized in that, The lubrication system includes an automatic lubrication device, a wear and noise detection device, and a roller jamming detection device. The automatic lubrication device includes: an adjustable bracket (11), a temporary oil tank (12), a lubrication solenoid valve (13), and a dropper (14). The adjustable bracket (11) is installed on the side of the bearing rail (9). The temporary oil tank (12) is connected to the adjustable bracket (11). The temporary oil tank (12) is equipped with a temporary oil tank level detection device (15). One end of the dropper (14) is connected to the temporary oil tank (12). The other end of the dropper (14) is located above the lubrication oil passage (8). The lubrication solenoid valve (13) is connected to the dropper (14) and is connected to the control unit. The wear and noise detection device includes: an upper sound insulation channel (33), a lower sound insulation channel (34), and a sound analysis sensor (35). The upper sound insulation channel (33) and the lower sound insulation channel (34) form an annular sound insulation channel, which wraps the annular load-bearing chain. The sound analysis sensor (35) is installed in the annular sound insulation channel. The sound analysis sensor (35) is used to collect the abnormal noise sound in the annular load-bearing chain in the annular sound insulation channel and convert it into an electrical signal. The generated electrical signal is transmitted to the host computer through a communication unit. The host computer is connected to the control unit. The roller jamming detection device is connected to the annular bearing chain in the bottom belt mechanism of the tobacco storage cabinet and is used to detect the jamming of the bearing roller (3) on the annular bearing chain. The wear and noise detection device is used to detect the wear and noise of the pin of the bearing roller (3) in the annular bearing chain in the bottom belt mechanism of the tobacco storage cabinet. The automatic lubrication device lubricates the annular bearing chain according to the detected jamming of the bearing roller (3) and the wear and noise of its pin. The upper sound insulation channel (33) is provided with a detection sound insulation channel (36), the detection sound insulation channel (36) is connected to the upper sound insulation channel (33), and the sound analysis sensor (35) is located in the detection sound insulation channel (36); The automatic lubrication device also includes a main oil tank (16), an electromagnetic pump (17), and a return solenoid valve (18). The main oil tank (16) is connected to a first branch oil pipe (41) and a second branch oil pipe (42). The first branch oil pipe (41) and the second branch oil pipe (42) are connected to the main oil pipe (43). The main oil pipe (43) is connected to the temporary storage oil tank (12). The electromagnetic pump (17) is connected to the first branch oil pipe (41). The electromagnetic pump (17) is connected to an oil suction head (21). The oil suction head (21) extends into the main oil tank (16). The return solenoid valve (18) is connected to the second branch oil pipe (42). The roller jamming detection device includes: a detection roller (27), a detection bracket (28), a trigger bracket (29), a start proximity switch (30), a stop proximity switch (31), and a detection switch (32); a cam flange (270) is formed on the detection roller (27), the detection roller (27) is connected to an annular support chain, the trigger bracket (29) is connected to the annular support chain, and the position of the trigger bracket (29) on the annular support chain corresponds to that of the detection roller (27), the detection bracket (28) is located below the detection roller (27), the start proximity switch (30) and the stop proximity switch (31) are respectively connected to the two ends of the detection bracket (28), and a plurality of detection switches (32) are connected to the detection bracket (28) and located between the start proximity switch (30) and the stop proximity switch (31), and are able to make the cam flange (270) on the detection roller (27) contact the detection switch (32); The detection switch (32) includes a pressing body (321), a support body (322), a spring (323), and a pressing switch (324). The support body (322) is connected to the detection bracket (28). The spring (323) is disposed inside the support body (322). The pressing body (321) is connected to the support body (322) and connected to the spring (323). The spring (323) is connected to the pressing switch (324).

2. The lubrication system of the bottom belt mechanism of the tobacco storage cabinet according to claim 1, characterized in that, The sound analysis sensor (35) includes a sound inlet cover (351), a dust cover (352), a sound channel (353), a silencing cavity (355), a sensor (356), and an analyzer (354). The dust cover (352) is installed at the head of the sound inlet cover (351). The sound inlet cover (351) is connected to the sound channel (353). The analyzer (354) and the sensor (356) are arranged inside the sound channel (353). The analyzer (354) and the sensor (356) are connected to each other. The silencing cavity (355) is arranged on both sides of the sound channel (353).

3. The lubrication system of the bottom belt mechanism of the tobacco storage cabinet according to claim 1, characterized in that, The automatic lubrication device also includes a photoelectric detection device (10), an electrical control cabinet (23), and a communication unit installed in the electrical control cabinet (23). The control unit is installed in the electrical control cabinet (23). The electrical control cabinet (23) is equipped with an indicator light (24), a display screen (25), and a power switch (26). The two photoelectric detection devices (10) are symmetrically connected to the adjustable bracket (11), so that the two photoelectric detection devices (10) are located at the upper and lower ends of the bottom strip gap (7).

4. A bottom belt mechanism for a tobacco storage cabinet, characterized in that, The bottom belt mechanism includes the lubrication system of any one of claims 1-3, and the bottom belt mechanism further includes: a plurality of outer chain plates (1), a plurality of inner chain plates (2), a plurality of load-bearing rollers (3), and a plurality of bottom belt plates (5). The load-bearing rollers (3) have roller rims (4) formed in the axial direction. The plurality of load-bearing rollers (3) are arranged horizontally linearly to form two sets of horizontally linearly arranged load-bearing roller assemblies. The roller rims (4) are located on the inner side of the two sets of load-bearing roller assemblies and are arranged opposite to each other. In each set of load-bearing roller assemblies, the inner chain plates (2) are connected to both ends of the load-bearing rollers (3), and the outer chain plates (1) are... The outer chain piece (1) and the inner chain piece (2) are connected to both ends of the bearing roller (3) and are outside the inner chain piece (2). The outer chain piece (1) and the inner chain piece (2) surround the bearing roller (3) to form an annular bearing chain. The annular bearing chain is set on the bearing track (9). A plurality of bottom belt plates (5) are connected between two annular bearing chains, and a bottom belt plate gap (7) is formed between the plurality of bottom belt plates (5). In the annular bearing chain, every two bearing rollers (3) are connected through an inner chain piece (2), and the two bearing rollers (3) are respectively connected to the adjacent outer chain piece (1). The outer chain piece (1) and the inner chain piece (2) are connected to the pin of the bearing roller (3). On the pin near the bearing roller (3), the outer chain piece (1) and the inner chain piece (2) are provided with through holes. The center of the diameter of the through holes on the outer chain piece (1) and the inner chain piece (2) is located on the same straight line, so that the through holes on the outer chain piece (1) and the inner chain piece (2) form a lubricating oil channel (8). The outer chain piece (1) is provided with a drain port, which is connected to the lubricating oil channel (8).

5. A lubrication method for the bottom belt mechanism of a tobacco storage tank, characterized in that, The lubrication method is used to lubricate the bottom belt mechanism of the tobacco storage cabinet according to claim 4, and the lubrication method includes: S1. Connect the lubrication solenoid valve (13) to the control unit, and connect the control unit to the host computer; S2. Use a wear and noise detection device to detect the wear and noise of the bearing roller (3) pin in the ring bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a first electrical signal, or use a roller jamming detection device to detect the jamming of the bearing roller (3) in the ring bearing chain of the bottom belt mechanism of the tobacco storage cabinet and generate a second electrical signal, and transmit the first electrical signal and the second electrical signal to the host computer. S3. After the host computer performs identification processing on the first electrical signal and the second electrical signal, it generates corresponding first control signal and second control signal respectively. The control unit controls the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal and the second control signal.

6. The lubrication method for the bottom belt mechanism of the tobacco storage tank according to claim 5, characterized in that, The host computer is equipped with an abnormal noise audio database of the support roller (3) under different conditions. The host computer performs data matching between the first electrical signal and the abnormal noise audio database and forms a first control signal, which is then sent to the control unit.

7. The lubrication method for the bottom belt mechanism of the tobacco storage cabinet according to claim 5, characterized in that, The control unit can identify the first control signal and the second control signal respectively to control the automatic lubrication device to lubricate the annular load-bearing chain; or when the control unit identifies the first control signal and the second control signal simultaneously, the control unit can control the automatic lubrication device to lubricate the annular load-bearing chain according to the first control signal or the second control signal.

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