Lubricating device for belt-type power transmission mechanism

Abstract

The present invention discloses a lubrication device for a belt-type power transmission mechanism, comprising a device housing, a rotatable rotating shaft, a linkage component, and a gear plate. An oil pipeline is provided above the device housing, and an oil collecting tank with a through hole is provided inside the device housing. The oil collecting tank is used to guide the lubricating oil in the oil pipeline to fall into a position below the through hole. The gear plate, linkage component, and rotating shaft are sequentially arranged in the device housing from top to bottom. When the rotating shaft rotates, the linkage component drives the resettable gear plate to translate and slide. The gear plate is arranged in the oil collecting tank. The gear plate is used to block, seal, or conduct and open the through hole by translation and sliding. The device of the present invention can meet the problem of fixed-point, timed, and quantitative lubrication of multiple designated positions, and can also automatically adjust the lubrication effect according to the speed of the transmission.

Description

Technical Field

[0001] The invention relates to the technical field of lubrication devices, and in particular to a fixed-point, timing, and quantitative lubrication device for a belt-type power transmission mechanism. Background Art

[0002] In the widespread use of power transmission mechanisms such as belt transmissions, it has been found that if the designated positions of the belt power transmission mechanism are not lubricated, long-term use may cause wear of the belt power transmission mechanism, thereby reducing its performance and shortening its service life. Therefore, various lubrication devices have been invented in the prior art for lubricating the belt power transmission mechanism.

[0003] Conventional belt power transmission mechanisms may not be able to simultaneously achieve fixed-point, timed, and quantitative lubrication at multiple designated positions in the power transmission mechanism, especially mechanical parts such as gears that are prone to wear and need to be lubricated. Conventional belt power transmission mechanisms are also unable to automatically adjust the lubrication effect according to the actual speed of the transmission in a narrow installation space, resulting in a waste of resources and unsatisfactory lubrication effect at high speeds.

[0004] Therefore, there is an urgent need to design a fixed-point, timed, and quantitative lubrication device for a belt power transmission mechanism, which can perform fixed-point, timed, and quantitative lubrication on designated positions inside the belt power transmission mechanism that are prone to wear while making the lubrication device compact enough, and can further automatically adjust the lubrication effect according to the actual speed. Summary of the Invention

[0005] (1) Technical issues to be solved

[0006] Based on this, the present invention provides a lubrication device for a belt power transmission mechanism to solve the problem that conventional belt power transmission mechanisms may not be able to achieve fixed-point, timed, and quantitative lubrication of multiple designated positions at the same time, and further solve the technical problem that conventional belt power transmission mechanisms may not be able to adjust the lubrication effect according to the rotational speed of the device.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention proposes a lubricating device of a belt power transmission mechanism, comprising a device housing, a rotatable rotating shaft, a linkage component and a gear plate, an oil pipe is provided above the device housing, and an oil collecting tank with a through hole is provided inside the device housing, and the oil collecting tank is used to guide the lubricating oil of the oil pipe to fall into the position below the through hole, the gear plate, linkage component and rotating shaft are arranged in the device housing from top to bottom in sequence, a wheel is fixed on the rotating shaft, and the wheel is used to make partial or full contact with the conveyor belt below, and when the rotating shaft rotates, the resettable gear plate is driven by the linkage component to slide in translation, and the gear plate is arranged in the oil collecting tank, and the gear plate is used to block, seal or open the through hole by sliding in translation, and a lifting device is provided below the conveyor belt, and the lifting device is used to lift the conveyor belt in a vertical direction.

[0009] Preferably, the linkage component includes a disc and a gear, the disc is fixedly connected to the rotating shaft, the gear is rotatably fixed to the inside of the device housing, the disc is fixedly connected to a tooth block, the tooth block can be meshed and connected to the gear, the gear is meshed and connected to the gear bar under the gear plate, the gear plate slides translationally relative to the device housing in the slide rail, the slide rail is arranged on one side of the oil collecting tank, one end of the slide rail is fixed at the end position of the groove in the oil collecting tank, the other end of the slide rail away from the through hole is fixedly connected to a spring, and the free end of the spring is fixedly connected to the gear plate.

[0010] Preferably, there are multiple through holes, and multiple through holes are opened on the oil collecting tank. The lower end of the oil collecting tank is bolted to a nozzle, and one through hole is correspondingly connected to one nozzle.

[0011] Preferably, all the through holes in the oil collecting tank are arranged on one side of the slide rail, and when the spring is reset, the gear plate can partially or completely block and seal the multiple through holes.

[0012] Preferably, the diameter of the gear is smaller than the vertical distance from the lower end surface of the gear plate to the upper end surface of the rotating shaft, and the length of the slide rail is greater than the length of the gear plate.

[0013] Preferably, the rotating shaft rotates freely at the lower center of the device housing, the length of the rotating shaft is greater than the width of the internal space of the device housing, and the axial direction of the rotating shaft is perpendicular to the movement direction of the conveyor belt.

[0014] Preferably, the disc is fixedly arranged at one end of the rotating shaft, the wheels are symmetrically distributed on the left and right sides of the rotating shaft away from the disc, and the oil pipeline is arranged at the top center of the device housing.

[0015] Preferably, there are two tooth blocks, which are symmetrically arranged at the upper and lower ends of the disc.

[0016] Preferably, the conveyor belt is located between the lifting device and the wheel, and a sensor is provided in the lifting device. The sensor is used to detect the speed of the conveyor belt. The lifting device can lift the conveyor belt up and down through the sensing signal of the sensor, and the outer side of the device housing and the lifting device are fixedly connected with a connecting rod.

[0017] Preferably, when the sensor detects that the speed of the conveyor belt is higher than a certain speed, the lifting device is controlled to lift upward, thereby increasing the contact area between the wheel and the conveyor belt; when the sensor detects that the speed of the conveyor belt is lower than or equal to the certain speed, the lifting device is controlled to slowly descend downward, ultimately making the transmission belt and the wheel no longer in contact.

[0018] (3) Beneficial effects

[0019] Compared with related technologies, the lubricating device for a belt-type power transmission mechanism provided by the present invention has the following beneficial effects:

[0020] (1) The present invention provides a lubricating device for a belt-type power transmission mechanism, which drives the rotation of the disc through the power of the conveyor belt itself and the friction between the wheel and the conveyor belt, thereby driving the rotation of the gear, thereby pushing the gear plate so that the lubricating oil flows into the nozzle for spraying. At the same time, the gear plate is pushed back by the contraction and rebound of the spring to block the outflow of the lubricating oil, thereby solving the problem that the belt-type power transmission mechanism may not be able to achieve fixed-point, fixed-quantity and fixed-time lubrication.

[0021] (2) The present invention provides a lubricating device for a belt power transmission mechanism, which uses a pneumatic device as a lifting device for the conveyor belt. When the sensor detects that the belt power transmission mechanism slows down, it will retract the pneumatic rod downward, thereby reducing the contact area between the conveyor belt and the wheel, causing the wheel to slow down. When the wheel slows down, the rotation of the disc will slow down, thereby slowing down the pushing of the gear rod, causing more through holes to be closed due to the resetting of the spring, or even all the through holes to be closed, at this time, the consumption of lubricating oil can be minimized. When the sensor detects that the belt power transmission mechanism increases its speed, it will lift the pneumatic rod upward, thereby increasing the contact area between the conveyor belt and the wheel, and increasing the speed of the wheel. When the wheel speeds up, the rotation of the disc will accelerate, thereby pushing the gear rod faster, which will cause the gear plate to be close to the left position for a long time. That is, at this time most or all of the through holes are open, and all the oil will flow in large quantities to the positions where the through holes are opened, ultimately achieving the effect of fixed-point, timed and quantitative lubrication for the various wear positions of the high-speed power transmission mechanism. Therefore, with the cooperation of the lifting device and the conveyor belt, the lubrication device automatically adjusts the oil amount in direct proportion to the speed of the conveyor belt at medium and high speeds (that is, the faster the conveyor belt speed and the larger the contact area, the more lubricating oil falls to the wear position). At the same time, it also ensures that the lubrication device does not affect the normal movement of the conveyor belt or cause resistance to its speed increase when the conveyor belt is stationary or running at low speed, and does not affect the working efficiency of the belt power transmission mechanism, further solving the problem that the belt power transmission mechanism may not be able to adjust the lubrication effect according to the speed of the power transmission mechanism.

[0022] (3) The lubrication device of the present invention does not require a power source. The power of the lifting device used for lifting the conveyor belt comes from the oil pressure or air pressure controlled by the internal structure. The linkage component uses the rotation speed of the conveyor belt itself to drive the movement of the rotating shaft to achieve automatic adjustment of the lubrication effect. The device is small in size, compact in structure and has reasonable space utilization. Except for the lifting device below, the overall device shell of the pure device structure can be reduced to a specification of 300mm*200mm*200mm, which is particularly suitable for installation on belt-type power transmission mechanisms such as agricultural machinery for lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall main cross-sectional structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the spring of the present invention from above, where the spring is in a free state of reset;

[0027] Figure 4 Schematic diagram of the side cross-sectional structure of the disc of the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the gear of the present invention from top view.

[0029] The reference numerals in the figures are:

[0030] 1. Device housing; 2. Oil pipeline; 3. Rotating shaft; 4. Wheel; 5. Disc; 6. Gear; 7. Gear plate; 8. Slide rail; 9. Spring; 10. Through hole; 11. Nozzle; 12. Connecting rod; 13. Conveyor belt; 14. Lifting device; 15. Sensor; 16. Gear block; 17. Oil collecting tank. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] See Figure 1-5 As shown, a lubrication device for a belt power transmission mechanism includes a device housing 1, a rotatable rotating shaft 3, a linkage component and a gear plate 7. An oil pipe 2 is provided above the device housing 1, and an oil collecting tank 17 with a through hole 10 is provided inside the device housing 1. The oil collecting tank 17 is used to guide the lubricating oil in the oil pipe 2 to fall into the position below the through hole 10, thereby performing fixed-point and quantitative lubrication on the easily worn positions on the belt power transmission mechanism; in addition, the gear plate 7, the linkage component and the rotating shaft 3 are arranged in the device housing 1 from top to bottom, and a wheel 4 is fixed on the rotating shaft 3. The wheel 4 is used to make partial or full contact with the conveyor belt 13 below, so that the rotating shaft 3 drives the resettable gear plate 7 to slide in translation through the linkage component when rotating. The gear plate 7 is arranged in the oil collecting tank 17, and the resettable gear plate 7 is used to block, seal or open the through hole 10 on the oil collecting tank 17 by sliding in translation to quantitatively adjust the amount of lubricating oil falling.

[0033] As can be seen from the above, the above device-type structural design solves the problem that conventional belt-type power transmission mechanisms may not be able to achieve fixed-point, timed, and quantitative lubrication of multiple designated positions at the same time. The contact between the conveyor belt 13 and the wheel 4 drives the rotating shaft 3 to rotate, so that the linkage component drives the gear plate 7 to slide horizontally to adjust the opening of the through hole 10 on the oil collecting tank 17 (or the number of through holes opened), thereby utilizing the transmission effect of the conveyor belt 13 itself to drive the structure to achieve fixed-point, timed, and quantitative lubrication. And because the conveyor belt of the power transmission mechanism such as the belt transmission is a one-way transmission, when the conveyor belt is not moving, it is necessary to use the resettable gear plate 7 to move the oil to the oil collecting tank 17. Figure 4 The right side direction is used for horizontal one-way reset, and the through hole 10 is partially or completely blocked under low speed conditions, thereby ensuring that the conveyor belt reduces unnecessary lubricating oil consumption when it is not moving. This part of the device has a compact structure and does not require a power source. It is particularly suitable for installation on a belt power transmission mechanism to lubricate multiple designated positions corresponding to the bottom of the nozzle that need lubrication.

[0034] In another embodiment, Figure 5 As shown, the through hole 10 and the nozzle 11 are freely designed corresponding to the designated position where lubrication is required. The number of through holes 10 can be multiple, and the specific positions are distributed according to the needs, see Figure 5-3 As shown, the number of through holes 10 is preferably 6, and the 6 through holes 10 are evenly opened on the oil collecting tank 17. The lower end of the oil collecting tank 17 is bolted to a nozzle 11. In addition, the nozzle 11 can also be set above the rotating shaft 3 and the wheel 4 to self-lubricate them. The nozzles 11 are divided into two groups, and each group of nozzles 11 is provided with three nozzles, and each group of nozzles 11 is evenly distributed at the lower end of the oil collecting tank 17, so that the lubricating oil can drip more evenly through the through holes 10 and be evenly sprayed downwards by the nozzles 11, thereby improving the efficiency of the device and reducing the waste of resources.

[0035] In another embodiment, the linkage component is a power transmission component provided between the rotating shaft 3 and the gear plate 7. Figure 2-Figure 4As shown, the linkage component specifically includes a disc 5 and a gear 6. The disc 5 is fixedly connected to the rotating shaft 3. The gear 6 is rotatably fixed inside the device housing 1. The disc 5 is fixedly connected to a tooth block 16. The tooth block 16 can be meshed with the gear 6. The gear 6 is meshed with the gear bar below the gear plate 7. The gear plate 7 slides relative to the device housing 1 in the slide rail 8. The slide rail 8 is set on one side of the oil collecting tank 17. Preferably, one end of the slide rail 8 is fixedly connected to the end position of the groove in the oil collecting tank 17. The other end of the slide rail 8 away from the through hole 10 on the oil collecting tank 17 is fixedly connected to the spring 9. The free end of the spring 9 is fixedly connected to the gear plate 7, so that the gear plate 7 automatically covers part or all of the through holes 10 under the reset action of the spring 9 in the slide rail 8. In addition, a connecting rod 12 is fixedly connected to the outside of the device housing 1 to fix the device housing 1.

[0036] From this we can see that if Figure 3 As shown, the gear plate 7 as a whole is used as a sealing plate for sealing. A gear bar is machined on the lower right side of the sealing plate to cooperate with the gear 6 to drive the plate body to move horizontally. The right edge of the sealing plate can slide on the edge of the device housing 1. The bottom of the left edge of the sealing plate is connected to one end of the spring 9 and is subjected to the reset thrust of the spring 9. The through hole 10 can be set on the right side of the slide rail 8 away from the spring 9. This structure is compact and reasonable, and is easy to repair and install. It should also be noted that the sliding structure of the linkage component and the slidable reset gear plate 7 introduced above is not limited to the above specific structure of the present invention, and can also be a linkage structure in other device forms or a reset structure that can slide in parallel.

[0037] like Figure 3 As shown, in order to achieve the sliding and resetting of the gear plate 7 in the slide rail 8, the length of the slide rail 8 is greater than the length of the gear plate 7, and Figure 3 All through holes 10 in the oil collecting tank 17 are arranged on one side of the slide rail 8, so that when the spring 9 naturally returns to its original position, the through holes 10 can be partially or completely blocked by the gear plate 7. The gear plate 7 can stably operate on the slide rail 8 in the device housing 1, thereby improving the fluidity and stability of the device. Since the disc 5 needs to be set, the diameter of the gear 6 is smaller than the distance from the lower end face of the gear plate 7 to the upper end face of the rotating shaft 3. There is a gear bar meshing with the gear 6 below the front end face of the gear plate 7, so that the gear 6 can stably push the gear plate 7, thereby improving the stability of the device. The thickness of the outer end face of the gear plate 7 can effectively block the through holes 10 through reasonable design, thereby improving the fluidity of the device. Figure 3 As shown, the conveyor belt running direction and the spring compression direction are both from right to left.

[0038] In addition, the oil pipeline 2 can be set at the top center position of the device housing 1, and the rotating shaft 3 rotates at the lower center position of the device housing 1. In order to achieve free rotation and positioning installation of the rotating shaft 3 in the device housing 1, the length of the rotating shaft 3 is greater than the width of the internal space of the device housing 1, and the axial direction of the rotating shaft 3 is perpendicular to the movement direction of the conveyor belt 13, so that the lubricating oil can be spread more evenly on the device oil collecting tank 17, so that the nozzle 11 can be sprayed more evenly, and at the same time, the rotation of the rotating shaft 3 can be more stable.

[0039] like Figure 2 As shown, the disc 5 is preferably fixedly arranged at one end of the rotating shaft 3, and the wheels 4 are symmetrically distributed on the left and right sides of the rotating shaft 3 away from the disc 5. The rotating shaft 3 is fixedly connected to the central shaft hole position of the disc 5, that is, the wheels 4 and the disc 5 are fixedly arranged coaxially with the rotating shaft 3. Figure 4 It can be seen that preferably, two gear blocks 16 are arranged symmetrically at the upper and lower ends of the disc 5. The symmetrically distributed wheels 4 can stably push the rotating shaft 3, thereby ensuring stable operation of the disc 5. The presence of only two gear blocks 16 on the disc 5 ensures that there is a period of time after the gear blocks 16 push the gear plate 7 without thrust, thereby better controlling the flow rate of the lubricating oil. Of course, multiple gear blocks 16 can also be provided. For example, if there are three gear blocks 16, the central angle difference between each two gear blocks 16 is 120 degrees, which ensures that the rotating shaft 3 drives the gear plate 7 to slide at a uniform speed.

[0040] Considering that the power transmission mechanism requires a larger amount of lubricating oil and a more comprehensive lubrication effect under high-speed movement, in order to further solve the technical problem that the conventional belt power transmission mechanism may not be able to adjust the lubrication effect according to the speed of the transmission, such as Figure 1-Figure 2 As shown, the present invention further designs a lifting device 14 under the conveyor belt 13, and the lifting device 14 is used to lift the conveyor belt 13 in the vertical direction. At this time, since the conveyor belt 13 is located between the lifting device 14 and the wheel 4, the lifting device 14 can make the wheel 4 partially or fully contact with the conveyor belt 13 through micro-displacement lifting, so that the size of the friction surface between the wheel 4 and the conveyor belt 13 can be adjusted by the lifting device 14. A sensor 15 is provided in the lifting device 14, and the sensor 15 is used to detect the speed of the conveyor belt. The lifting device 14 is moved up and down by the induction of the sensor 15.

[0041] For example, when the conveyor belt slows down, the lifting device slowly descends, and the friction surface between the wheel 4 and the conveyor belt 13 is reduced, so that the wheel 4 can automatically reduce its speed when the conveyor belt 13 slows down, which weakens the opening effect of the gear plate 7 on the through hole 10, reducing the total amount of lubricating oil falling through the through hole 10, thereby controlling the flow of lubricating oil and saving unnecessary lubricating oil consumption. When the friction surface between the wheel 4 and the conveyor belt 13 is zero (that is, when the lifting device descends to the point where it does not lift the conveyor belt 13), the gear plate 7 can be reset to the position as shown in the figure below by the spring. Figure 3 The minimum number of three through holes shown or even all through holes can be blocked so that the conveyor belt consumes the least amount of oil when it is at low speed or stationary, and only the key parts are lubricated.

[0042] Furthermore, at medium to high speeds, the lifting device is raised to increase the contact area between the wheel 4 and the conveyor belt 13. At this time, the gear plate 7 is almost constantly at the far left, and the spring 9 is in its maximum compression state. To ensure that the conveyor belt can deliver sufficient lubricating oil through different numbers of through-holes 10 when running at medium or high speeds, the length of the spring 9 and the number and position of the through-holes 10 can be adjusted accordingly. For example, if there are nine through-holes 10, at high speeds and when the spring 9 is extremely compressed, nine through-holes 10 are connected; at medium speeds and when the spring 9 is appropriately compressed, six through-holes 10 are connected; and at low speeds and when the spring 9 is freely returning to its original position, three through-holes 10 are connected or zero through-holes 10 are connected.

[0043] In another embodiment, the lifting device 14 is preferably a hydraulic device or a buoyancy device. This device or buoyancy device is a controllable lifting device with a connecting rod and a lifting plate, driven by oil pressure or oil buoyancy. The speed sensor 15 can be a laser sensor. Laser sensors are currently available and will not be explained further. Furthermore, a connecting rod 12 can be provided on the outside of the lifting device 15 to secure it.

[0044] It is worth mentioning that the lifting device of the present invention is a better design. The design of the lifting device can better ensure that the lubricating device does not affect the normal movement of the conveyor belt or cause resistance to its speed increase when the conveyor belt is stationary or running at a low speed, and does not affect the working efficiency of the belt power transmission mechanism, but it is not a necessary component in the lubricating device. In certain special circumstances (for example, when it is inconvenient to install the lifting device under the conveyor belt), the device housing 1 can also be driven to move up and down as a whole by controlling the connecting rod 12, or the rotating shaft 3 and wheel 4 and other components in the device housing 1 can be controlled to move up and down, thereby also achieving the same adjustment of the contact area and vertical distance between the wheel and the conveyor belt. In addition, in extreme cases, the fixed device housing 1 and the conveyor belt 13 can be designed to ensure constant contact throughout the entire process, so that the opening of the through hole and the amount of lubricating oil falling can be adjusted only by the speed of the conveyor belt itself. However, this will affect the normal movement of the conveyor belt or cause resistance to its speed increase, resulting in a decrease in the power efficiency of the entire device.

[0045] In order to better understand the lubrication device of the present invention and its beneficial effects, the following will describe in detail the working modes and principles of the unpowered device components in the device housing 1 above the conveyor belt 13 and the lifting device 14 provided below the conveyor belt 13:

[0046] (A) Working mode of the non-powered device components above the conveyor belt

[0047] Step 1: Combine Figure 1-Figure 5 When the belt power transmission mechanism starts working, the conveyor belt 13 will rotate, thereby driving the wheel 4 connected to the conveyor belt 13 to rotate, and the rotation of the wheel 4 will drive the rotating shaft 3 that fixes the wheel 4 to rotate, and the rotation of the rotating shaft 3 drives the rotation of the disc 5;

[0048] Step 2: As the disc 5 rotates, the gear block 16 fixed on the disc 5 rotates, thereby rotating the gear 6. The rotation of the gear 6 pushes the gear plate 7 to move horizontally on the slide rail 8, thereby opening part or all of the through holes 10.

[0049] Step 3: As the through hole 10 opens, the lubricating oil will flow into the nozzle 11, and then the lubricating oil will be lubricated to the designated wear parts below through the nozzle 11, and finally the spraying will be completed. Because there are only two tooth blocks 16, the gear 6 will have no power for a period of time, and at this time it will be pushed back by the spring 9 to block the through hole 10, thereby completing the spraying of the lubricating oil to other designated positions and stopping.

[0050] (B) Working mode of the lifting device under the conveyor belt

[0051] In order to better illustrate the advantages of the lifting device working together with the lubrication device above, the following will be combined Figure 1-Figure 5 To illustrate the working principle of the lubrication device during acceleration and deceleration, the number of through holes in the oil collecting tank is set to 9, and it is arranged in a nine-square grid ( Figure 1-5 Only 6 through holes are listed in the figure):

[0052] Step 1 (belt speed detection): After the lubrication device of the belt power transmission mechanism starts working, when the belt power transmission mechanism starts to change speed, the sensor 15 obtains speed information by sensing the speed change of the belt power transmission mechanism; by setting the threshold value, the speed of the conveyor belt in the power transmission mechanism is divided into low speed, medium speed and high speed respectively;

[0053] Step 2 (acceleration process - low speed): When the speed of the power transmission mechanism is at a low speed, the sensor 15 will control the lifting device 14 to descend to a position where the conveyor belt 13 is not lifted, or control the lifting device 14 to maintain a low position, so that the transmission belt 13 and the wheel 4 do not contact each other at a low speed. At this time, if lubrication is required at a small number of designated positions, the free end length of the spring 9 when it is reset can be set so that the gear plate 7 does not block the three through holes 10 at the rightmost end to ensure the minimum lubrication effect; if no lubrication is required at this time, the free end length of the spring 9 when it is reset can be set so that the gear plate 7 blocks all the through holes 10;

[0054] Step 3 (acceleration process - medium and high speed): When the speed of the power transmission mechanism is at medium speed or high speed, the sensor 15 will control the lifting device 14 through the controller to lift the lifting device 14 upward, thereby increasing the contact area between the wheel 4 and the conveyor belt 13 according to the speed ratio or speed range (for example: at medium speed, the transmission belt and the wheel begin to contact, and at this time some positions begin to lubricate; at high speed, the contact area between the transmission belt and the wheel increases, and at this time multiple positions begin to lubricate at a fixed point, time and quantity), so that the rotation speed of the wheel 4 slowly increases, thereby causing the gear plate 7 to move to the left to increase the number of through holes 10 opened, and ultimately increase the amount of oil falling. For example, through reasonable settings, the conveyor belt 13 can open 3-9 through holes 10 according to the speed ratio when running at medium and high speeds; the deceleration process of the conveyor belt at medium and high speeds is opposite to the above acceleration process, which is not repeated here.

[0055] Step 4 (deceleration process - low speed): When the speed of the belt power transmission mechanism is reduced from medium speed to low speed or stops, the sensor 15 will control the lifting device 14 to descend through the controller, driving the conveyor belt 13 to perform a micro-displacement and descend, thereby eventually making the conveyor belt 13 completely separated from the wheel 4. At this time, the lubrication of the three through holes 10 can be maintained or all the through holes 10 can be closed as needed, thereby ensuring the minimum amount of lubricating oil without affecting the operating efficiency of the belt power transmission mechanism.

[0056] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a device connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A lubricating device for a belt-type power transmission mechanism, characterized in that: The invention comprises a device housing, a rotatable rotating shaft, a linkage component and a gear plate, an oil delivery pipe is provided above the device housing, an oil collecting tank with a through hole is provided inside the device housing, the oil collecting tank is used to guide the lubricating oil of the oil delivery pipe to fall into the position below the through hole, the gear plate, the linkage component and the rotating shaft are sequentially arranged in the device housing from top to bottom, a wheel is fixedly provided on the rotating shaft, the wheel is used to make partial or full contact with the conveyor belt below, the rotating shaft drives the resettable gear plate to slide in translation through the linkage component when rotating, the gear plate is arranged in the oil collecting tank, the gear plate is used to block, seal or conduct and open the through hole by sliding in translation, a lifting device is provided below the conveyor belt, the lifting device is used to lift the conveyor belt in a vertical direction; The linkage component includes a disc and a gear, the rotating shaft is fixedly connected to a disc, the gear is rotatably fixed to the inside of the device housing, the disc is fixedly connected to a tooth block, the tooth block can be meshed and connected to the gear, the gear is meshed and connected with the gear bar below the gear plate, the gear plate slides translationally relative to the device housing in the slide rail, the slide rail is arranged on one side of the oil collecting tank, one end of the slide rail is fixed at the end position of the groove portion in the oil collecting tank, the other end of the slide rail away from the through hole is fixedly connected to a spring, and the free end of the spring is fixedly connected to the gear plate; There are multiple through holes, and the multiple through holes are opened on the oil collecting tank. The lower end of the oil collecting tank is bolted to a nozzle, and one through hole is correspondingly connected to one nozzle; The disc is fixedly arranged at one end of the rotating shaft, the wheels are symmetrically distributed on the left and right sides of the rotating shaft away from the disc, and the oil pipeline is arranged at the top center of the device housing.

2. The lubricating device for a belt-type power transmission mechanism according to claim 1, characterized in that: All the through holes in the oil collecting tank are arranged on one side of the slide rail, and when the spring is reset, the gear plate can partially or completely block and seal the multiple through holes.

3. The lubricating device for a belt-type power transmission mechanism according to claim 1, wherein: The diameter of the gear is smaller than the vertical distance from the lower end surface of the gear plate to the upper end surface of the rotating shaft, and the length of the slide rail is greater than the length of the gear plate.

4. The lubricating device for a belt-type power transmission mechanism according to claim 1, wherein: The rotating shaft rotates freely at the lower center of the device housing. The length of the rotating shaft is greater than the width of the internal space of the device housing. The axial direction of the rotating shaft is perpendicular to the moving direction of the conveyor belt.

5. The lubricating device for a belt-type power transmission mechanism according to claim 1, wherein: There are two tooth blocks, which are symmetrically arranged at the upper and lower ends of the disc.

6. The lubricating device for a belt-type power transmission mechanism according to any one of claims 1 to 5, characterized in that: The conveyor belt is located between the lifting device and the wheel. A sensor is provided in the lifting device. The sensor is used to detect the speed of the conveyor belt. The lifting device can lift the conveyor belt up and down through the sensing signal of the sensor. The outer side of the device housing and the lifting device are fixedly connected with a connecting rod.

7. The lubricating device for a belt-type power transmission mechanism according to claim 6, characterized in that: When the sensor detects that the speed of the conveyor belt is higher than a certain speed, the lifting device is controlled to lift upward, thereby increasing the contact area between the wheel and the conveyor belt; when the sensor detects that the speed of the conveyor belt is lower than or equal to the certain speed, the lifting device is controlled to slowly descend downward, ultimately making the transmission belt and the wheel no longer in contact.

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