Plate spring lubricating system for large vehicle

Abstract

The invention relates to the technical field of vehicle accessory lubricant supply control, in particular to a plate spring lubricating system for a large vehicle, which comprises a plate spring and further comprises a nozzle facing the plate spring, the plate spring comprises a plurality of friction plates, the friction plates are sequentially stacked in the vertical direction, and the lengths of the friction plates are sequentially increased from top to bottom; the nozzle is located above the plate spring and used for spraying a lubricating agent to the plate spring. The two ends of the oil pipe are communicated with the nozzles and the oil tank, the number of the nozzles is at least two, and the nozzles are located on the two sides of the symmetry axis of the plate spring respectively; an opening used for adding lubricating agents is formed in the top of the oil tank and detachably connected with a sealing cover. By the adoption of the scheme, the technical problems that in the prior art, a plate spring needs to be detached for lubrication, time and labor are wasted, and lubrication cannot be conducted in time can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle accessory lubricant supply control, in particular to a leaf spring lubrication system for large vehicles. Background Art

[0002] When a large vehicle is driving, the weight of the vehicle and the cargo it carries is large, which will generate large forces during driving. In order to withstand and disperse these forces, leaf springs are installed in the structure that transmits the forces between the axle and the frame. Leaf springs, also known as leaf springs for short, disperse the impact force on the wheels to the frame through their elastic deformation during driving, thereby maintaining the stable driving of the vehicle. At the same time, when the wheels are impacted and vibrated, the leaf springs can absorb the forces generated by the impact and vibration, reduce the impact and vibration on the frame, and thus reduce the impact on the vehicle and the driver.

[0003] The existing leaf spring is made of multiple friction plates stacked together. When the leaf spring is subjected to load impact, it forms an extension movement to absorb the impact force. During this process, strong friction will be generated between the friction plates, and the two friction surfaces will generate friction forces in two different directions, making the friction plates prone to surface strain. When the stress is concentrated at a certain point and reaches the fatigue limit, it is very easy to cause cracks or breakage of the friction plates. Therefore, in order to avoid excessive friction during the use of the leaf spring, lubricant needs to be applied to the friction plate.

[0004] In the prior art, the lubricant of the leaf spring is usually added regularly. When lubrication is needed, the leaf spring is disassembled, the friction plate is coated with lubricant, and then the friction plate is assembled into a leaf spring for use. This process usually relies on manual operation, which is time-consuming and laborious. At the same time, during the use of the leaf spring, its lubrication effect is affected by the vehicle load and the driving environment. When the vehicle load is too large or the driving environment is relatively bad, the greater the impact force and frequency of the leaf spring, the greater the friction force and frequency between the friction plates, so the loss of the lubrication effect between the friction plates is greater. Therefore, the lubrication effect of the leaf spring is often lost before the specified period. The leaf spring that loses the lubrication effect, firstly, cannot provide the vehicle shock absorption effect, resulting in the loss of large vehicles during driving, and the loss to the road increases. At the same time, it will also interfere with the driver's control of the vehicle and increase the risk of safety accidents. Secondly, the wear between the friction plates will also increase, greatly increasing the use cost of large vehicles. Summary of the invention

[0005] The present invention is intended to provide a leaf spring lubrication system for large vehicles to solve the technical problems in the prior art that the leaf spring needs to be disassembled for lubrication, which is time-consuming and labor-intensive and cannot be lubricated in time.

[0006] The present invention provides the following basic scheme: A leaf spring lubrication system for large vehicles includes a leaf spring and a nozzle facing the leaf spring. The leaf spring includes a plurality of friction plates, which are stacked in sequence in a vertical direction, and the length of the friction plates increases from top to bottom. The nozzle is located above the leaf spring and is used to spray lubricant onto the leaf spring.

[0007] Furthermore, it also includes an oil tank and an oil pipe, both ends of the oil pipe are connected to the nozzle and the oil tank, the number of the nozzles is at least two, and the nozzles are respectively located on both sides of the symmetry axis of the leaf spring.

[0008] Furthermore, an opening for adding lubricant is provided on the top of the oil tank, and a sealing cover is detachably connected to the opening.

[0009] Furthermore, the leaf spring also includes a guide rod, a top pressure block and a bottom pressure block. The top pressure block is located above the friction plate and abuts against the top of the stacked friction plate. The bottom pressure block is located below the friction plate and abuts against the bottom of the stacked friction plate. Both ends of the guide rod pass through the top pressure block and the bottom pressure block respectively and are connected to the top pressure block and the bottom pressure block respectively. The number of guide rods is at least four, and the guide rods are located on both sides of the friction plate respectively.

[0010] Furthermore, there are four guide rods, which are respectively located on both sides of the friction plate, and the distance between one end of two guide rods on the same side passing through the top pressure block is smaller than the distance between the other ends.

[0011] Furthermore, there are two groups of guide rods, each group has four guide rods, the guide rods in the same group are located on both sides of the friction plate and on both sides of the symmetry axis of the friction plate, one group of guide rods is located on the outside of the other group of guide rods, and the two groups of guide rods pass through the same top pressure block and bottom pressure block.

[0012] Furthermore, it also includes a server and a vehicle-mounted control module for communication, and the vehicle-mounted control module is used to control the nozzle to spray the lubricant; The server is preset with a neural network model. The server is used to obtain order information of large vehicles, and also to obtain analysis results output by the neural network model based on the order information. It is also used to determine whether to control the nozzle to spray lubricant to the leaf spring based on the analysis results, and generate an injection signal based on the judgment result and send it to the vehicle control module.

[0013] Furthermore, the vehicle-mounted control module is preset with a regular duration, and the vehicle-mounted control module is used to time according to the regular duration, and control the nozzle to spray lubricant when the timing ends; it is also used to control the nozzle to spray lubricant to the leaf spring after receiving the injection signal, and reset the timing according to the regular duration.

[0014] Furthermore, it also includes a vibration sensor installed on the large vehicle, the vibration sensor is used to collect vibration data of the wheels and the frame respectively, and upload it to the server; The server is also used to determine whether the leaf spring needs lubrication based on the analysis results. When the leaf spring needs lubrication, the server calls the vibration data to secondarily determine whether the leaf spring needs lubrication. When it is secondarily determined that the leaf spring needs lubrication, the server generates an injection signal.

[0015] Furthermore, the server is also used to obtain vibration data in real time when it is secondarily determined that the leaf spring does not need lubrication, and to analyze in real time whether the leaf spring needs lubrication based on the vibration data and preset data judgment conditions, and to generate an injection signal when the vibration data meets the data judgment conditions.

[0016] Beneficial effects of the basic program: 1. This solution improves the structure of the leaf spring. Compared with the inverted triangle of the leaf spring in the prior art, the friction plate of this solution is distributed in a regular triangle, combined with the setting of the nozzle. When lubrication is needed, the lubricant is sprayed toward the leaf spring through the nozzle, and the friction plates are stacked in sequence from short to long in the vertical direction. The lubricant will flow from the upper friction plate to the lower friction plate. At the same time, when the vehicle is running, the friction plate moves, and the lubricant attached to it will also move, so that the lubricant flows to the surface of the friction plate to achieve lubrication of the friction plate.

[0017] 2. The oil tank is set to provide storage space for the lubricant sprayed by the nozzle, so that the nozzle can spray lubricant anytime and anywhere. In the actual application process, a corresponding mechanism for controlling the nozzle spraying is set to realize the automatic control of the nozzle. Compared with the manual operation in the prior art, the automatic control saves time and effort. At the same time, when the leaf spring needs lubrication, the nozzle can be controlled to spray lubricant for lubrication in time, thereby avoiding the problem of untimely lubrication of the leaf spring, affecting the shock absorption effect of the leaf spring, causing damage to the leaf spring, interfering with the driving of the vehicle and the driver.

[0018] 3. The operation of large vehicles is usually based on orders. The order information includes transportation time, transportation route, transported goods, load, etc. Under different transportation routes and loads, the loss of lubricants is different. In this scheme, the order information is preliminarily monitored based on the neural network model to analyze the loss of lubricants and determine whether the leaf spring needs lubrication. When it is determined in the preliminary monitoring that the leaf spring needs lubrication, a secondary judgment is made based on the vibration data. The vibration data is collected and uploaded by the vibration sensor. The number of vibration sensors is at least two, which are respectively set at the two ends of the force transmission received by the leaf spring. For example, the impact and force received by the wheel are transmitted to the leaf spring. The leaf spring absorbs part of the impact and force and then transmits it to the frame. Therefore, the wheel and the frame are the two ends of the force transmission received by the leaf spring. Based on the vibration data, the impact and force absorbed by the leaf spring are analyzed to know whether the lubrication effect of the leaf spring is effective. In the secondary judgment, if it is determined that the leaf spring needs lubrication, the nozzle is controlled by the on-board control module to spray lubricant to lubricate the leaf spring. With this design, no human intervention is required, and the nozzle is automatically controlled by the server to lubricate the leaf spring according to the transportation situation of the vehicle.

[0019] 4. In this solution, when judging whether the leaf spring needs lubrication for the second time, if it is determined that the leaf spring does not need lubrication, it does not return to the initial monitoring, but starts the secondary judgment for continuous monitoring. Compared with returning to the initial monitoring, the secondary judgment is real-time monitoring based on vibration data, while the initial monitoring is a one-time judgment when the order is issued. This solution selectively starts the secondary judgment, firstly to improve the accuracy of the analysis of whether the leaf spring is lubricated or not, and secondly to effectively utilize the server computing resources without occupying a large amount of resources for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a first embodiment of a leaf spring lubrication system for a large vehicle according to the present invention; Figure 2 It is a structural schematic diagram of a leaf spring of a leaf spring lubrication system for a large vehicle according to an embodiment of the present invention; Figure 3 This is a logic block diagram of Embodiment 2 of the leaf spring lubrication system for large vehicles according to the present invention. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods: The reference numerals in the drawings of the specification include: leaf spring 1, nozzle 2, friction plate 3, guide rod 4, top pressure block 5, bottom pressure block 6, connecting block 7, connecting seat 8, arc-shaped protrusion 9, axle 10, and frame 11.

[0022] Embodiment 1 For leaf spring lubrication systems of large vehicles, such as Figure 1 As shown, it includes an oil tank, an oil pipe, a leaf spring 1, and a nozzle 2 facing the leaf spring 1. The oil tank is used to store lubricants. A pressure control accessory is also provided on the oil tank to control the outflow of the lubricant in the oil tank. An opening for adding lubricants is provided on the top of the oil tank, and a cover is detachably connected to the opening. The two ends of the oil pipe are connected to the nozzle 2 and the oil tank, and the oil pipe is used to transport the lubricant in the oil tank to the nozzle 2. The setting of the opening facilitates the addition of lubricants to the oil tank, and the setting of the cover is used to close the opening to prevent impurities from entering the lubricant, while also reducing the volatilization of the lubricant. When used, a valve can be provided at the opening according to actual conditions, so as to improve the sealing of the oil tank and control the outflow of the lubricant. In this embodiment, lubricating oil is used as the lubricant.

[0023] As attached Figure 2 As shown, the leaf spring 1 includes a plurality of friction plates 3, which are stacked in a vertical direction, and the length of the friction plates 3 increases from top to bottom. The vertical direction is a direction perpendicular to the ground, and the length of the friction plates 3 increases in a direction away from the ground toward the ground.

[0024] The leaf spring 1 further includes a guide rod 4, a top pressure block 5 and a bottom pressure block 6. The top pressure block 5 is located above the friction plate 3 and abuts against the top of the stacked friction plate 3. The bottom pressure block 6 is located below the friction plate 3 and abuts against the bottom of the stacked friction plate 3. Specifically, N friction plates 3 are stacked in sequence from top to bottom. The friction plate 3 located at the top is defined as the first friction plate 3, and the friction plate 3 located at the bottom is defined as the Nth friction plate 3. The value of N is a natural number. The bottom of the top pressure block 5 abuts against the top of the first friction plate 3, and the top of the bottom pressure block 6 abuts against the bottom of the Nth friction plate 3. In this embodiment, the value of N is six.

[0025] The two ends of the guide rod 4 pass through the top pressing block 5 and the bottom pressing block 6 respectively, and are respectively connected to the top pressing block 5 and the bottom pressing block 6. Specifically, the top end of the guide rod 4 passes through the top pressing block 5 and is connected to the top pressing block 5 through a nut, and the bottom end of the guide rod 4 passes through the bottom pressing block 6 and is connected to the bottom pressing block 6 through a nut. The top pressing block 5 and the bottom pressing block 6 are arranged to cooperate with the guide rod 4 to limit the movement and deformation of the friction plate 3.

[0026] The number of guide rods 4 is at least four, and the guide rods 4 are arranged obliquely, and the guide rods 4 are respectively located on both sides of the friction plate 3. Specifically, the guide rods 4 are in two groups, and the number of guide rods 4 in each group is four, that is, the number of guide rods 4 is eight. The guide rods 4 in the same group are respectively located on both sides of the friction plate 3, and are located on both sides of the symmetry axis of the friction plate 3, that is, there are four guide rods 4 on one side of the friction plate 3, and the four guide rods 4 on the same side are distributed on both sides of the symmetry axis of the friction plate 3.

[0027] One group of guide rods 4 is located outside the other group of guide rods 4, and the two groups of guide rods 4 pass through the same top pressing block 5 and bottom pressing block 6. Specifically, the distance between one end of the guide rods 4 located on the same side of the friction plate 3 passing through the top pressing block 5 is smaller than the distance between the other ends, that is, the distance between the top ends of the same group of guide rods 4 located on the same side is smaller than the distance between the bottom ends. The distance between the top ends of the other group of guide rods 4 located on the same side is greater than the distance between the top ends of the guide rods 4 on the same side of the group, and similarly, the distance between the bottom ends of the other group of guide rods 4 located on the same side is greater than the distance between the bottom ends of the guide rods 4 on the same side of the group.

[0028] In other embodiments, the number of guide rods 4 is four, that is, there is only one group of guide rods 4, and the four guide rods 4 are respectively located on both sides of the friction plate 3, and the distance between one end of the two guide rods 4 on the same side passing through the top pressure block 5 is smaller than the distance between the other ends.

[0029] The nozzle 2 is located above the leaf spring 1. The nozzle 2 is used to spray lubricant onto the leaf spring 1. There are at least two nozzles 2, which are respectively located on both sides of the symmetry axis of the leaf spring 1. The number of nozzles 2 is twice that of the leaf spring 1, and the nozzles 2 are located above the leaf spring 1. In this embodiment, the nozzle 2 adopts a long-nozzle nozzle, and the outlet of the long-nozzle nozzle faces the friction plate 3. The lubricant sprayed by the nozzle 2 is sprayed onto the friction plate 3. Since the friction plates 3 are stacked in sequence from short to long in the vertical direction, the lubricant will flow from the upper friction plate 3 to the lower friction plate 3. At the same time, when the vehicle is driving, the friction plate 3 moves, and the lubricant attached thereto will also move, so that the lubricant flows to the surface of the friction plate 3 to achieve lubrication of the friction plate 3.

[0030] A connecting block 7 and a connecting seat 8 are provided at both ends of the bottom of the leaf spring 1. The connecting block 7 is inverted U-shaped, that is, the opening of the connecting block 7 faces downward, and the opening of the connecting block 7 is connected to the connecting seat 8. An arc-shaped protrusion 9 is provided on the top of the connecting seat 8. The two ends of the bottom of the leaf spring 1 are respectively located in the two connecting blocks 7 and abut against the arc-shaped protrusion 9. The connecting seat 8 is transmission-connected to the axle 10 of the existing large vehicle, and the bottom pressure block 6 is transmission-connected to the frame 11 of the existing large vehicle. The axle 10 transmits the impact and force of the wheel to the frame 11 through the leaf spring 1.

[0031] With this solution, when lubrication is needed, the lubricant is sprayed toward the leaf spring 1 through the nozzle 2, and the friction plates 3 are stacked in a vertical direction from short to long, and combined with the driving of the vehicle, the lubricant flows to the surface of the friction plates 3 to achieve lubrication of the friction plates 3. Compared with the manual operation in the prior art, automatic control can be adopted, which saves time and labor. At the same time, when the leaf spring 1 needs lubrication, the nozzle 2 can be controlled to spray lubricant for lubrication in time, thereby avoiding the problems of untimely lubrication of the leaf spring 1, affecting the shock absorption effect of the leaf spring 1, causing damage to the leaf spring 1, interfering with the driving of the vehicle and the driver.

[0032] Embodiment 2 The difference between this embodiment and the first embodiment is that: Leaf spring 1 lubrication system for large vehicles, such as attached Figure 3 As shown, it also includes a server and a vehicle-mounted control module for communication, and the vehicle-mounted control module is used to control the nozzle 2 to spray lubricant. Specifically, the vehicle-mounted control module is preset with a regular duration, and the vehicle-mounted control module is used to count according to the regular duration, and control the nozzle 2 to spray lubricant when the timing ends. In this embodiment, the regular duration is six months, that is, the vehicle-mounted control module controls the nozzle 2 to spray lubricant once every six months, so as to achieve lubrication of the leaf spring 1.

[0033] It also includes a vibration sensor installed on a large vehicle, which is used to collect vibration data of the wheels and the frame 11 respectively, and upload them to the server. Specifically, the number of vibration sensors is at least two, and the two vibration sensors are respectively installed on the axle 10 and the frame 11. The shaking of the axle 10 can reflect the impact on the vehicle, so the vibration sensor is set on the axle 10. The vibration data collected by the vibration sensor is the displacement caused by the shaking of the axle 10 and the frame 11 during driving. The vibration sensor is communicatively connected to the vehicle-mounted control module, and the vehicle-mounted control module can adopt the control system carried by existing large vehicles to upload vibration data through the vehicle-mounted control module.

[0034] The server is preset with a database, and the server is used to receive vibration data and store the vibration data in the database. The server is also used to obtain order information of large vehicles and store the order information in the database. The order information includes the transport vehicle, transport time, transport route, transport goods, load, etc. In this embodiment, the order information includes the transport vehicle, transport route and load.

[0035] The server is also preset with a neural network model, which is used to input order information and output an analysis result of whether the leaf spring 1 needs lubrication based on the order information. In this embodiment, the neural network model is constructed using an existing deep neural network model. The server is used to obtain order information of large vehicles, and is also used to obtain the analysis results output by the neural network model based on the order information, and is also used to determine whether to control the nozzle 2 to spray lubricant to the leaf spring 1 based on the analysis results, and generate an injection signal based on the determination result and send it to the vehicle control module. The operation of large vehicles is usually based on work orders. Under different transportation routes and loads, the loss of lubricants is different. The neural network model outputs analysis results based on the order information. When a large vehicle receives a work order, the server determines whether the nozzle 2 sprays lubricants based on the order information of the work order.

[0036] The server is also used to determine whether the leaf spring 1 needs lubrication based on the analysis result. When the leaf spring 1 needs lubrication, the vibration data is called to secondarily determine whether the leaf spring 1 needs lubrication. When the leaf spring 1 is secondarily determined to need lubrication, an injection signal is generated. The server is also used to obtain vibration data in real time when the leaf spring 1 is secondarily determined not to need lubrication, analyze in real time whether the leaf spring 1 needs lubrication based on the vibration data and preset data determination conditions, and generate an injection signal when the vibration data meets the data determination conditions.

[0037] Specifically: the server includes a model analysis module, an analysis and determination module, a monitoring adaptation module, a continuous monitoring module, a self-learning module and a signal control module.

[0038] The model analysis module is used to call the order information of the corresponding large vehicle in the database according to the transport vehicle in the order information after receiving the order information. The model analysis module is also used to call the preset neural network model to obtain the analysis result output by the neural network model according to the called order information, and the analysis result includes that the leaf spring 1 needs lubrication and the leaf spring 1 does not need lubrication.

[0039] The analysis and judgment module is used to generate a judgment result that the nozzle 2 does not need to spray lubricant to the leaf spring 1 when the analysis result of the model analysis module is that the leaf spring 1 does not need lubrication; it is also used to call the vibration data in the database when the analysis result of the model analysis module is that the leaf spring 1 needs lubrication, and make a secondary judgment on whether the leaf spring 1 needs lubrication based on the vibration data. When it is secondary judged that the leaf spring 1 needs lubrication, a judgment result is generated that the nozzle 2 sprays lubricant to the leaf spring 1. When it is secondary judged that the leaf spring 1 does not need lubrication, a judgment result of continuous monitoring is generated.

[0040] The monitoring adaptation module is used to call the order information when the analysis and judgment module generates a judgment result of continuous monitoring, and generate a route obstacle rate according to the transportation route of the order information. The route obstacle rate reflects the road surface steepness of the transportation route.

[0041] The continuous monitoring module is used to obtain the vibration data uploaded by the vehicle control module in real time when the analysis and judgment module generates a judgment result of continuous monitoring, and analyze in real time whether the leaf spring 1 needs lubrication based on the vibration data and preset data judgment conditions. When the vibration data meets the data judgment conditions, a judgment result is generated that the nozzle 2 sprays lubricant to the leaf spring 1.

[0042] The vibration data includes vibration data of axle 10 and vibration data of frame 11. The data judgment conditions include calculating the vibration amplitude of axle 10 and the maximum amplitude according to the vibration data of axle 10, calculating the vibration amplitude of frame 11 and the vibration amplitude value of frame 11 corresponding to the maximum vibration amplitude of axle 10 according to the vibration data of frame 11, calculating the amplitude change rate according to the vibration amplitude of axle 10 and the vibration amplitude of frame 11, and calculating the sample point amplitude change rate according to the maximum vibration amplitude of axle 10 and the corresponding vibration amplitude value of frame 11. When the amplitude change rate and the sample point amplitude change rate are both less than the preset amplitude change threshold, the vibration data meets the data judgment conditions.

[0043] The amplitude change rate and the sample point amplitude change rate reflect the change in the force transmitted from the axle 10 to the frame 11 after the leaf spring 1 is damped. The amplitude change threshold is the product of the maximum force change after the leaf spring 1 is set and the route obstacle rate. For example, if the route obstacle rate is 60%, the amplitude change threshold is 60% of the maximum force change after the leaf spring 1 is set. When the amplitude change rate and the sample point amplitude change rate are less than the amplitude change threshold, it means that the lubrication effect of the leaf spring 1 has failed, and the vibration data meets the data judgment condition. When the continuous monitoring module makes a secondary judgment, it is judged in combination with the transportation route. The data judgment conditions are judged differently under routes with different steepness of road surface, so as to improve the accuracy of the secondary judgment.

[0044] The self-learning module is used to call the order information corresponding to the judgment result and the order information in the database as data samples when the continuous monitoring module generates a judgment result that the nozzle 2 sprays lubricant onto the leaf spring 1, train the neural network model according to the data samples, and update the database according to the trained neural network model. The database is also used to update the data samples after the neural network model is trained to historical data samples. In this solution, the setting of the self-learning module optimizes the neural network model, and the analysis accuracy of the neural network model is improved through model optimization.

[0045] The signal control module is used to generate an injection signal and send the injection signal to the vehicle control module when the analysis and judgment module or the continuous monitoring module generates a judgment result that the nozzle 2 injects lubricant to the leaf spring 1.

[0046] The vehicle control module is also used to control the nozzle 2 to spray lubricant to the leaf spring 1 after receiving the injection signal, and re-time according to the regular duration. After the nozzle 2 sprays lubricant to the leaf spring 1, the vehicle control module updates the timing and re-times according to the regular duration to ensure that the nozzle 2 sprays lubricant once within six months.

[0047] In this solution, the order information is preliminarily monitored based on the neural network model to analyze the loss of lubricant and determine whether the leaf spring 1 needs lubrication. When it is determined in the preliminary monitoring that the leaf spring 1 needs lubrication, a secondary judgment is made based on the vibration data. The vibration data is collected and uploaded by the vibration sensor. The number of vibration sensors is at least two, which are respectively set at the two ends of the force transmission received by the leaf spring 1. For example, the impact and force received by the wheel are transmitted to the leaf spring 1. The leaf spring 1 absorbs part of the impact and force and then transmits it to the frame 11. Therefore, the wheel and the frame 11 are the two ends of the force transmission received by the leaf spring 1. Based on the vibration data, the impact and force absorbed by the leaf spring 1 are analyzed to know whether the lubrication effect of the leaf spring 1 is effective. In the secondary judgment, if it is determined that the leaf spring 1 needs lubrication, the nozzle 2 is controlled by the vehicle control module to spray lubricant to lubricate the leaf spring 1. With this design, no human intervention is required, and the nozzle 2 is automatically controlled by the server to lubricate the leaf spring 1 according to the transportation conditions of the vehicle.

[0048] In this solution, when the leaf spring 1 is judged to need lubrication for the second time, if it is judged that the leaf spring 1 does not need lubrication, it does not return to the initial monitoring, but starts the secondary judgment for continuous monitoring. Compared with returning to the initial monitoring, the secondary judgment is real-time monitoring based on vibration data, while the initial monitoring is a one-time judgment when the order is issued. This solution selectively starts the secondary judgment, firstly, to improve the analysis accuracy of whether the leaf spring 1 is lubricated or not, and secondly, to effectively utilize the server computing resources without occupying a large amount of resources for a long time.

[0049] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A leaf spring lubrication system for a large vehicle, comprising a leaf spring, characterized in that: It also includes a nozzle facing the leaf spring, which includes a plurality of friction plates, which are stacked in sequence in the vertical direction, and the length of the friction plates increases from top to bottom; the nozzle is located above the leaf spring, and the nozzle is used to spray lubricant to the leaf spring.

2. The leaf spring lubrication system for large vehicles according to claim 1, characterized in that: It also includes an oil tank and an oil pipe. The two ends of the oil pipe are connected to the nozzle and the oil tank. The number of the nozzles is at least two, and the nozzles are respectively located on both sides of the symmetry axis of the leaf spring.

3. The leaf spring lubrication system for large vehicles according to claim 2, characterized in that: An opening for adding lubricant is provided on the top of the oil tank, and a sealing cover is detachably connected to the opening.

4. The leaf spring lubrication system for large vehicles according to claim 3, characterized in that: The leaf spring also includes a guide rod, a top pressure block and a bottom pressure block. The top pressure block is located above the friction plate and abuts against the top of the stacked friction plate. The bottom pressure block is located below the friction plate and abuts against the bottom of the stacked friction plate. The two ends of the guide rod pass through the top pressure block and the bottom pressure block respectively and are connected to the top pressure block and the bottom pressure block respectively. The number of guide rods is at least four, and the guide rods are located on both sides of the friction plate respectively.

5. The leaf spring lubrication system for large vehicles according to claim 4, characterized in that: There are four guide rods, which are respectively located on both sides of the friction plate. The distance between one end of two guide rods on the same side passing through the top pressing block is smaller than the distance between the other ends.

6. The leaf spring lubrication system for large vehicles according to claim 4, characterized in that: There are two groups of guide rods, each group has four guide rods. The guide rods in the same group are located on both sides of the friction plate and on both sides of the symmetry axis of the friction plate. One group of guide rods is located on the outside of the other group of guide rods. The two groups of guide rods pass through the same top pressure block and bottom pressure block.

7. The leaf spring lubrication system for large vehicles according to any one of claims 1 to 6, characterized in that: Also included is a server and an on-board control module for communication, wherein the on-board control module is used to control the nozzle to spray the lubricant; The server is preset with a neural network model. The server is used to obtain order information of large vehicles, and also to obtain analysis results output by the neural network model based on the order information. It is also used to determine whether to control the nozzle to spray lubricant to the leaf spring based on the analysis results, and generate an injection signal based on the judgment result and send it to the vehicle control module.

8. The leaf spring lubrication system for large vehicles according to claim 7, characterized in that: The on-board control module is preset with a regular duration. The on-board control module is used to time according to the regular duration, and control the nozzle to spray lubricant when the timing ends. It is also used to control the nozzle to spray lubricant to the leaf spring after receiving the injection signal, and reset the timing according to the regular duration.

9. The leaf spring lubrication system for large vehicles according to claim 8, characterized in that: It also includes a vibration sensor installed on a large vehicle, the vibration sensor is used to collect vibration data of the wheels and the frame respectively, and upload the data to a server; The server is also used to determine whether the leaf spring needs lubrication based on the analysis results. When the leaf spring needs lubrication, the server calls the vibration data to secondarily determine whether the leaf spring needs lubrication. When it is secondarily determined that the leaf spring needs lubrication, the server generates an injection signal.

10. The leaf spring lubrication system for large vehicles according to claim 9, characterized in that: The server is also used to obtain vibration data in real time when it is secondarily determined that the leaf spring does not need lubrication, and to analyze in real time whether the leaf spring needs lubrication based on the vibration data and preset data judgment conditions, and to generate an injection signal when the vibration data meets the data judgment conditions.

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