Self-lubricating low-noise gear

Abstract

The invention relates to the technical field of gears, in particular to a self-lubricating low-noise gear which is characterized in that the self-lubricating low-noise gear comprises a gear disc and a plurality of gear teeth which are integrally formed and evenly arranged on the outer circumferential face of the gear disc, and an elastic extrusion oil outlet mechanism is arranged between the bottoms of every two adjacent gear teeth on the outer circumferential face of the gear disc; an annular oil storage shell is arranged on at least one outer side face of the gear disc, an annular oil storage cavity is formed in the annular oil storage shell, and a plurality of elastic oil transfer mechanisms corresponding to the elastic extrusion oil outlet mechanisms one to one are arranged on the outer circumferential face of the annular oil storage shell. According to the invention, the self-lubricating effect of the gear can be realized, friction and noise during meshing transmission of the gear can be reduced, oil is extruded only at the meshing area of the gear through the mutual meshing effect of the gear teeth, the situation that lubricating oil in the annular oil storage cavity is directly thrown out during high-speed rotation of the gear is effectively avoided, and the service life of the gear is prolonged. The usage amount of lubricating oil can be greatly reduced, and the situation that the lubricating oil is seriously wasted is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of gears, and in particular to a self-lubricating low-noise gear. Background Art

[0002] Gear transmission is the most widely used form of mechanical transmission. The characteristics of gear transmission are smooth transmission, precise transmission ratio, reliable operation, high efficiency, long service life, and a wide range of power, speed and size. In the existing high-speed gears, metal gears are usually included. When the metal gears are meshed, they will emit noise corresponding to the gear meshing frequency due to meshing impact. Friction noise will also occur due to relative sliding between the tooth surfaces, shortening the service life of the gears. To solve this problem, some existing metal gears are provided with an oil storage tank inside the gear plate, and an oil outlet hole directly connected to the oil storage tank is provided on the outer circumferential surface of the gear plate. The lubricating oil in the oil storage tank can flow out from the oil outlet hole to lubricate the gear, thereby reducing friction and noise. However, since the oil outlet hole is directly connected to the oil storage tank, during the process of high-speed rotation and meshing transmission of the gear, oil will be discharged from the oil outlet hole in the meshing area or non-meshing area of ​​the gear, and the lubricating oil in the oil storage tank will be directly thrown out from the oil outlet hole due to the large centrifugal force when the gear rotates at high speed, which will greatly increase the use of lubricating oil and cause serious waste of lubricating oil. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a self-lubricating, low-noise gear that can realize the self-lubricating effect of gears, which is beneficial to reducing the friction and noise during gear meshing transmission, and only squeezes out oil through the mutual meshing of gear teeth in the meshing area of ​​the gear, effectively avoiding the lubricating oil in the annular oil storage chamber being directly thrown out when the gear rotates at high speed, which can greatly reduce the amount of lubricating oil used and prevent serious waste of lubricating oil.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a self-lubricating low-noise gear, comprising a gear plate and a plurality of gear teeth integrally formed and evenly arranged on the outer circumferential surface of the gear plate, an elastic extrusion oil outlet mechanism is arranged between the bottoms of two adjacent gear teeth on the outer circumferential surface of the gear plate, an annular oil storage shell is arranged on at least one outer side surface of the gear plate, an annular oil storage cavity is arranged in the annular oil storage shell, and a plurality of elastic oil transfer mechanisms corresponding to the elastic extrusion oil outlet mechanisms are arranged on the outer circumferential surface of the annular oil storage shell. During the meshing transmission process of the two gears, the gear teeth in the meshing area of ​​one gear can squeeze the elastic extrusion oil outlet mechanism in the meshing area of ​​the other gear and squeeze the lubricating oil in the elastic extrusion oil outlet mechanism out and flow to the gear teeth, and synchronously squeeze the elastic oil transfer mechanism in the meshing area of ​​the other gear and connect the elastic oil transfer mechanism with the annular oil storage cavity. When the elastic oil transfer mechanism on the gear is in the non-meshing area, the elastic oil transfer mechanism can be elastically reset and connected to the elastic extrusion oil outlet mechanism.

[0005] Furthermore, an axial mounting groove arranged along the axial direction is provided on the outer circumferential surface of the gear plate between the bottoms of two adjacent gear teeth, the elastic extrusion oil outlet mechanism is adapted to and fixedly installed in the axial mounting groove, at least one outer side surface of the gear plate is provided with a concentrically arranged annular mounting groove, the annular oil storage shell is adapted to and fixedly installed in the annular mounting groove, at least one outer side surface of the gear plate is provided with a plurality of radial mounting grooves arranged along the radial direction and communicating with the annular mounting groove near the edge, the plurality of radial mounting grooves correspond to and communicate with the plurality of axial mounting grooves one by one, and the elastic oil transfer mechanism is adapted to and fixedly installed in the radial mounting groove.

[0006] Furthermore, the elastic oil extrusion mechanism includes an outer elastic layer in the shape of a strip and an inner sponge core. The outer elastic layer is adapted to and fixedly arranged in the axial mounting groove. The outer side surface of the outer elastic layer protrudes from the outer circumferential surface of the gear plate. The inner side surface of the outer elastic layer is provided with an oil suction groove running through at least one end thereof. The outer side surface of the outer elastic layer is provided with a plurality of oil outlet micropores communicating with the oil suction groove. The inner sponge core is adapted to and fixedly arranged in the oil suction groove.

[0007] Furthermore, the elastic oil transfer mechanism includes an outer tube, an inner rod and a first compression spring. The outer tube is adapted to the radial mounting groove and fixedly arranged in the radial mounting groove. The outer tube is fixedly arranged on the outer circumferential surface of the annular oil storage shell. A sliding cavity is provided in the outer tube which runs through both ends thereof and communicates with the annular oil storage cavity. The length of the inner rod is greater than the depth of the sliding cavity. The inner rod includes an upper slider, a middle connecting rod and a lower slider which are connected in sequence. The upper slider and the lower slider are adapted to the sliding cavity and slide in cooperation. The outer diameter of the middle connecting rod is smaller than the inner diameter of the sliding cavity. An oil outlet channel is provided in the upper slider, a connecting channel is provided in the middle connecting rod, and an oil inlet channel is provided in the lower slider. The oil inlet channel, the connecting channel and the oil outlet channel are connected in sequence. A limiting protrusion is fixedly provided on the lower part of the inner surface of the sliding cavity. A notch is provided on the limiting protrusion. The middle connecting rod passes through the notch and makes the lower slider and the upper slider respectively located on the inner and outer sides of the limiting protrusion. The first compression spring is sleeved on the middle connecting rod and is located between the upper slider and the limiting protrusion and makes the end surface of the upper slider away from the middle connecting rod protrude from the outer circumference of the gear plate.

[0008] Furthermore, the upper slider is fixedly arranged at one end of the middle connecting rod and the two are integrally formed, the other end of the middle connecting rod is threadedly sealed with the lower slider, and an arc surface is arranged on the end of the upper slider away from the middle connecting rod.

[0009] Furthermore, the annular oil storage shell includes an annular shell and an annular cover plate, the annular shell is adapted to the annular mounting groove and fixedly arranged in the annular mounting groove, an annular oil storage groove open to one side is arranged in the annular shell, the outer tube includes a strip tube body and a strip cover plate, the strip tube body is fixedly arranged on the outer circumferential surface of the annular shell, the strip cover plate is fixedly arranged on the inner side surface of the annular cover plate, a sliding groove is arranged in the strip tube body which runs through both ends thereof and is open to one side and communicates with the annular oil storage groove, the annular cover plate is fixedly arranged on the gear plate and is sealingly spliced ​​with the annular shell and the strip cover plate is sealingly spliced ​​with the strip tube body, the annular oil storage groove and the inner side surface of the annular cover plate are enclosed to form an annular oil storage cavity, and the sliding groove and the inner side surface of the strip cover plate are enclosed to form a sliding groove.

[0010] Furthermore, an annular labyrinth penetration component is fixedly provided in the annular oil storage shell and divides the annular oil storage cavity into a main annular cavity and a secondary annular cavity which are sequentially arranged radially inward and outward. The elastic oil transfer mechanism can be connected to the secondary annular cavity. During the rotation of the gear, the lubricating oil in the main annular cavity can slowly penetrate into the secondary annular cavity through the annular labyrinth penetration component.

[0011] Furthermore, the annular labyrinth permeation assembly includes an inner annular baffle, an outer annular baffle, a plurality of left annular labyrinth plates and a plurality of right annular labyrinth plates. The inner annular baffle is provided with a plurality of inner through holes evenly arranged along its circumferential direction, and the outer annular baffle is provided with a plurality of outer through holes evenly arranged along its circumferential direction. The inner annular baffle and the outer annular baffle are arranged inside and outside in sequence. The plurality of left annular labyrinth plates and the plurality of right annular labyrinth plates are all located between the inner annular baffle and the outer annular baffle and are arranged alternately in sequence to form a labyrinth oil seepage gap. The inner annular baffle and the outer annular baffle are both fixedly arranged on the left inner side surface or the right inner side surface of the annular oil storage cavity. The left annular labyrinth plate is fixedly arranged on the left inner side surface of the annular oil storage cavity, and the right annular labyrinth plate is fixedly arranged on the right inner side surface of the annular oil storage cavity.

[0012] Furthermore, elastic oil sealing mechanisms are fixedly provided at multiple inner through holes on the outer circumferential surface of the inner annular baffle plate, and the elastic oil sealing mechanism includes a fixed tube, a blocking block and a second compression spring. The fixed tube is fixedly provided on the outer circumferential surface of the inner annular baffle plate, and an inner cavity communicating with the inner through hole is provided in the fixed tube. A connecting port communicating with the inner cavity is provided on the outer surface of the fixed tube. The blocking block is adapted to the inner cavity and is slidably provided in the inner cavity and is used to block the inner through hole. The second compression spring is provided in the inner cavity and is used to always keep applying an elastic force to the blocking block toward one side of the inner through hole.

[0013] Furthermore, the left annular maze plate is in the shape of a trumpet that is wider on the right and narrower on the left, and the right annular maze plate is in the shape of a trumpet that is wider on the left and narrower on the right.

[0014] From the above description, it can be seen that the self-lubricating low-noise gear provided by the present invention has the following beneficial effects: through the setting of the elastic oil transfer mechanism, during the process of gear meshing transmission, the gear teeth in the meshing area on one gear can squeeze the elastic oil transfer mechanism in the meshing area on the other gear and make the elastic oil transfer mechanism communicate with the annular oil storage chamber, and the elastic oil transfer mechanism is not connected with the elastic extrusion oil outlet mechanism. At this time, due to the centrifugal force generated by the high-speed rotation of the gear, the lubricating oil in the annular oil storage chamber will enter the elastic oil transfer mechanism and realize transfer storage. When the elastic oil transfer mechanism on the gear is in the non-meshing area, the elastic oil transfer mechanism can be elastically reset and connected with the elastic extrusion oil outlet mechanism, and the elastic oil transfer mechanism is not connected with the annular oil storage chamber. At this time, due to the centrifugal force generated by the high-speed rotation of the gear, the lubricating oil in the elastic oil transfer mechanism will enter the elastic extrusion oil outlet mechanism; through the elastic The setting of the elastic extrusion oil outlet mechanism, during the gear meshing transmission process, the gear teeth in the meshing area on one gear can squeeze the elastic extrusion oil outlet mechanism in the meshing area on the other gear and squeeze the lubricating oil in the elastic extrusion oil outlet mechanism out and flow to the gear teeth, thereby lubricating the gear teeth, and realizing effective lubrication and self-lubrication, which is beneficial to reducing the friction and noise during the gear meshing transmission; when the elastic extrusion oil outlet mechanism is in the non-meshing area, the lubricating oil in the elastic extrusion oil outlet mechanism is not easy to seep out because it is not squeezed by the gear teeth; and during the gear meshing transmission process, whether in the meshing area or the non-meshing area, the annular oil storage chamber will not be directly connected to the elastic extrusion oil outlet mechanism, effectively avoiding the situation where the lubricating oil in the annular oil storage chamber is directly thrown out when the gear rotates at high speed; and when the gear is not working, the lubricating oil in the annular oil storage chamber will not seep out, which will greatly reduce the use of lubricating oil and prevent the waste of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the self-lubricating low-noise gear of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure decomposition of the self-lubricating low-noise gear of the present invention.

[0017] Figure 3 It is a front view of the self-lubricating low-noise gear of the present invention.

[0018] Figure 4 for Figure 3 Schematic diagram of the cross section along the AA direction.

[0019] Figure 5 for Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0020] Figure 6 for Figure 3 Schematic diagram of the cross section along the BB direction.

[0021] Figure 7 for Figure 6 A partial enlarged schematic diagram of point D in the middle.

[0022] Figure 8 for Figure 7 A partial enlarged schematic diagram of point E in the middle.

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure of the inner rod.

[0024] In the figure: 1-gear plate; 11-axial mounting groove; 12-annular mounting groove; 13-radial mounting groove; 2-gear teeth; 3-elastic extrusion oil outlet mechanism; 31-external elastic layer; 311-oil outlet micropores; 32-inner sponge core; 4-annular oil storage shell; 41-annular oil storage cavity; 411-main annular chamber; 412-secondary annular chamber; 42-annular shell; 421-annular oil storage tank; 43-annular cover plate; 44-oil filling pipe; 5-elastic oil transfer mechanism; 51-outer tube; 511-strip tube body; 512-strip cover plate; 513-sliding cavity; 514-limiting protrusion; 52-inner Rod; 521-upper slider; 5211-oil outlet channel; 5212-arc surface; 522-middle connecting rod; 5221-connecting channel; 523-lower slider; 5231-oil inlet channel; 53-first compression spring; 6-annular labyrinth penetration assembly; 61-inner annular baffle; 611-inner through hole; 62-outer annular baffle; 621-outer through hole; 63-left annular labyrinth plate; 64-right annular labyrinth plate; 65-labyrinth oil seepage gap; 66-elastic oil sealing mechanism; 661-fixed tube; 6611-inner cavity; 6612-connecting port; 662-block; 663-second compression spring. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific implementation modes.

[0026] like Figures 1 to 9As shown, the self-lubricating low-noise gear of the present invention comprises a gear plate 1 and a plurality of gear teeth 2 integrally formed and evenly arranged on the outer circumferential surface of the gear plate 1, an elastic extrusion oil outlet mechanism 3 is arranged between the bottoms of two adjacent gear teeth 2 on the outer circumferential surface of the gear plate 1, an annular oil storage shell 4 is arranged on at least one outer side surface of the gear plate 1, an annular oil storage cavity 41 is arranged in the annular oil storage shell 4, and a plurality of elastic oil transfer mechanisms 5 corresponding to the elastic extrusion oil outlet mechanism 3 are arranged on the outer circumferential surface of the annular oil storage shell 4. In the process of meshing transmission of two gears, one of them The gear teeth 2 in the meshing area on the gear can squeeze the elastic oil extrusion mechanism 3 in the meshing area on another gear and squeeze the lubricating oil in the elastic oil extrusion mechanism 3 out and flow it to the gear teeth 2, and synchronously squeeze the elastic oil transfer mechanism 5 in the meshing area on another gear and connect the elastic oil transfer mechanism 5 with the annular oil storage chamber 41. When the elastic oil transfer mechanism 5 on the gear is in the non-meshing area, the elastic oil transfer mechanism 5 can be elastically reset and connected with the elastic oil extrusion mechanism 3.

[0027] By setting the elastic oil transfer mechanism 5, during the gear meshing transmission process, the gear teeth 2 on one of the gears in the meshing area can squeeze the elastic oil transfer mechanism 5 on the other gear in the meshing area and make the elastic oil transfer mechanism 5 communicate with the annular oil storage chamber 41, and the elastic oil transfer mechanism 5 is not connected with the elastic extrusion oil mechanism 3. At this time, due to the centrifugal force generated by the high-speed rotation of the gear, the lubricating oil in the annular oil storage chamber 41 will enter the elastic oil transfer mechanism 5 and realize transfer storage. When the elastic oil transfer mechanism 5 on the gear is in the non-meshing area, the elastic oil transfer mechanism 5 can be elastically reset and communicated with the elastic extrusion oil mechanism 3, and the elastic oil transfer mechanism 5 is not connected with the annular oil storage chamber 41. At this time, due to the centrifugal force generated by the high-speed rotation of the gear, the lubricating oil in the elastic oil transfer mechanism 5 will enter the elastic extrusion oil mechanism 3; by setting the elastic extrusion oil mechanism 3 In the gear meshing transmission process, the gear teeth 2 in the meshing area on one of the gears can squeeze the elastic extrusion oil outlet mechanism 3 in the meshing area on the other gear and squeeze the lubricating oil in the elastic extrusion oil outlet mechanism 3 out and flow to the gear teeth 2, thereby lubricating the gear teeth 2, achieving effective lubrication and self-lubrication, which is beneficial to reducing friction and noise during gear meshing transmission. When the elastic extrusion oil outlet mechanism 3 is in the non-meshing area, the lubricating oil in the elastic extrusion oil outlet mechanism 3 is not easy to seep out because it is not squeezed by the gear teeth 2. In the gear meshing transmission process, whether in the meshing area or the non-meshing area, the annular oil storage chamber 41 will not be directly connected to the elastic extrusion oil outlet mechanism 3, effectively avoiding the situation where the lubricating oil in the annular oil storage chamber 41 is directly thrown out when the gear rotates at high speed, and when the gear is not working, the lubricating oil in the annular oil storage chamber 41 will not seep out, which will greatly reduce the use of lubricating oil and prevent serious waste of lubricating oil.

[0028] An axial mounting groove 11 arranged along the axial direction is provided on the outer circumferential surface of the gear plate 1 between the bottoms of two adjacent gear teeth 2, the elastic oil extrusion mechanism 3 is adapted to the axial mounting groove 11 and fixedly installed in the axial mounting groove 11, at least one outer side surface of the gear plate 1 is provided with a concentrically arranged annular mounting groove 12, the annular oil storage shell 4 is adapted to the annular mounting groove 12 and fixedly installed in the annular mounting groove 12, at least one outer side surface of the gear plate 1 is provided with a plurality of radial mounting grooves 13 arranged along the radial direction and communicating with the annular mounting groove 12 near the edge, the plurality of radial mounting grooves 13 correspond to and communicate with the plurality of axial mounting grooves 11 one by one, the elastic oil transfer mechanism 5 is adapted to and fixedly installed in the radial mounting groove 13, thereby making the overall structure of the gear more compact and stable.

[0029] Correspondingly, the elastic oil extrusion mechanism 3 includes an outer elastic layer 31 in the shape of a strip and an inner sponge core 32. Preferably, the outer elastic layer 31 is made of elastic nylon. The outer elastic layer 31 is adapted to the axial mounting groove 11 and fixedly arranged in the axial mounting groove 11. The outer side surface of the outer elastic layer 31 protrudes from the outer circumferential surface of the gear plate 1. The inner side surface of the outer elastic layer 31 is provided with an oil suction groove penetrating at least one end thereof. The outer side surface of the outer elastic layer 31 is provided with a plurality of oil outlet micropores 311 communicating with the oil suction groove. The inner sponge core 32 is adapted to the oil suction groove and fixedly arranged in the oil suction groove. As a result, when the lubricating oil is discharged from the elastic oil liquid After the transfer mechanism 5 enters the elastic extrusion oil outlet mechanism 3, it can be quickly absorbed by the inner sponge core 32, so that the lubricating oil is temporarily stored in the inner sponge core 32, and when the elastic extrusion oil outlet mechanism 3 is in the non-meshing area, the lubricating oil is not easy to directly seep out from the oil outlet micropores 311 of the outer elastic layer 31. When the elastic extrusion oil outlet mechanism 3 is in the meshing area, the outer elastic layer 31 and the inner sponge core 32 can be squeezed by the gear teeth 2 of another meshing gear, so that the lubricating oil in the inner sponge core 32 is squeezed out, and can seep out to the gear teeth 2 through the oil outlet micropores 311 to achieve lubrication of the gear teeth 2.

[0030] Correspondingly, the elastic oil transfer mechanism 5 includes an outer tube 51, an inner rod 52 and a first compression spring 53. The outer tube 51 is adapted to the radial mounting groove 13 and fixedly arranged in the radial mounting groove 13. The outer tube 51 is fixedly arranged on the outer circumferential surface of the annular oil storage shell 4. The outer tube 51 is provided with a sliding cavity 513 that runs through both ends thereof and communicates with the annular oil storage cavity 41. The length of the inner rod 52 is greater than the depth of the sliding cavity 513. The inner rod 52 includes an upper slider 521, a middle connecting rod 522 and a lower slider 523 that are connected in sequence. The upper slider 521 and the lower slider 523 are adapted to the sliding cavity 513 and slide in cooperation. The outer diameter of the middle connecting rod 522 is smaller than the inner diameter of the sliding cavity 513. The upper slider 521 is provided with an oil outlet channel 5211, the middle connecting rod 522 is provided with a connecting channel 5221, and the lower slider 523 is provided with an oil inlet channel 5231. The oil inlet channel 5231, the connecting channel 5221 and the oil outlet channel 5211 are sequentially connected. A limiting protrusion 514 is fixedly provided at the lower part of the inner surface of the sliding cavity 513. The limiting protrusion 514 is provided with a notch. The middle connecting rod 522 passes through the notch and makes the lower slider 523 and the upper slider 521 located at the inner and outer sides of the limiting protrusion 514 respectively. The first compression spring 53 is sleeved on the middle connecting rod 522 and is located between the upper slider 521 and the limiting protrusion 514 and makes the upper slider 521 One end surface away from the middle connecting rod 522 protrudes from the outer circumferential surface of the gear plate 1 and the outer side surface of the outer elastic layer 31. As a result, during the gear meshing transmission process, the gear teeth 2 in the meshing area on one of the gears can squeeze the inner rod 52 in the meshing area on the other gear, so that the inner rod 52 slides inward and the upper slider 521 further extends into the sliding cavity 513. At this time, the oil outlet channel 5211 in the upper slider 521 is also in the sliding cavity 513 and is blocked by the inner surface of the sliding cavity 513 and is not connected to the inner sponge core 32 of the elastic oil extrusion mechanism 3. At the same time, the lower slider 523 is partially extended into the ring shaped oil storage chamber 41, and the oil inlet passage 5231 in the lower slider 523 is also in the annular oil storage chamber 41 and communicated with the annular oil storage chamber 41. At this time, due to the centrifugal force generated by the gear during high-speed rotation, the lubricating oil in the annular oil storage chamber 41 will enter the connecting passage 5221 through the oil inlet passage 5231 and realize transfer storage. When the elastic oil transfer mechanism 5 on the gear is in a non-meshing area, at this time, since it is not squeezed by the gear teeth 2 of another meshing gear, but is subjected to the outward elastic force of the first compression spring 53, and the mutual limitation of the lower slider 523 and the limiting protrusion 514 will cause the inner rod 52 to slide outward and reset.The lower slider 523 is retracted into the sliding cavity 513. At this time, the oil inlet channel 5231 in the lower slider 523 is also in the sliding cavity 513 and is blocked by the inner surface of the sliding cavity 513 and is no longer connected to the annular oil storage cavity 41. At the same time, the upper slider 521 is extended outward from the sliding cavity 513. At this time, the oil outlet channel 5211 in the upper slider 521 is no longer in the sliding cavity 513 and is reconnected to the inner sponge core 32 of the elastic extrusion oil outlet mechanism 3. At this time, due to the centrifugal force generated by the gear during high-speed rotation, the lubricating oil in the connecting channel 5221 enters the elastic extrusion oil outlet mechanism 3 through the oil outlet channel 5211 and is absorbed by the inner sponge core 32.

[0031] Preferably, the cross section of the sliding cavity 513 is square-shaped, and accordingly, the upper sliding block 521 and the lower sliding block 523 are both cube-shaped, and the middle connecting rod 522 is cylindrical.

[0032] Preferably, the upper slider 521 is fixed to one end of the middle connecting rod 522 and the two are integrally formed, and the other end of the middle connecting rod 522 is threadedly and sealedly connected to the lower slider 523. Correspondingly, a threaded hole is provided in the lower slider 523, and the other end of the middle connecting rod 522 is provided with an external threaded section. The middle connecting rod 522 is threadedly connected to the threaded hole of the lower slider 523 through the external threaded section, and a sealing ring is provided between the two to ensure the sealing during the threaded connection. In addition, a circular arc surface 5212 is provided on the upper slider 521 at the end away from the middle connecting rod 522 to better ensure the smoothness of the extrusion of the inner rod 52.

[0033] Correspondingly, the annular oil storage shell 4 includes an annular shell 42 and an annular cover plate 43, the annular shell 42 is adapted to the annular mounting groove 12 and is fixedly arranged in the annular mounting groove 12, the annular shell 42 is provided with an annular oil storage groove 421 opened to one side, the outer tube 51 includes a strip tube body 511 and a strip cover plate 512, the strip tube body 511 is fixedly arranged on the outer circumferential surface of the annular shell 42, the strip cover plate 512 is fixedly arranged on the inner side of the annular cover plate 43, the strip tube body 511 is provided with a sliding groove that runs through both ends thereof and is open to one side and communicates with the annular oil storage groove 421, the annular cover plate 43 is fixedly installed On the gear plate 1, it is sealed and spliced ​​with the annular shell 42, and the strip cover plate 512 is sealed and spliced ​​with the strip tube body 511. Correspondingly, the inner surfaces of the annular cover plate 43 and the strip cover plate 512 are fixed with sealing gaskets to achieve sealing during splicing. The annular oil storage groove 421 and the inner side surface of the annular cover plate 43 are combined to form the annular oil storage cavity 41, and the sliding groove and the inner side surface of the strip cover plate 512 are combined to form the sliding cavity 513. In addition, the width of the annular oil storage cavity 41 gradually decreases from the inside to the outside along the radial direction of the annular oil storage shell 4 to better adapt to the width of the sliding cavity 513.

[0034] In addition, an annular labyrinth penetration component 6 is fixedly provided in the annular oil storage shell 4 and divides the annular oil storage cavity 41 into a main annular chamber 411 and a secondary annular chamber 412 which are sequentially arranged radially inward and outward. The elastic oil transfer mechanism 5 can be connected to the secondary annular chamber 412. During the rotation of the gear, the lubricating oil in the main annular cavity can slowly penetrate into the secondary annular chamber 412 through the annular labyrinth penetration component 6.

[0035] Correspondingly, the annular labyrinth penetration assembly 6 includes an inner annular baffle 61, an outer annular baffle 62, a plurality of left annular labyrinth plates 63 and a plurality of right annular labyrinth plates 64, the inner annular baffle 61 is provided with a plurality of inner through holes 611 evenly arranged along its circumferential direction, the outer annular baffle 62 is provided with a plurality of outer through holes 621 evenly arranged along its circumferential direction, the inner annular baffle 61 and the outer annular baffle 62 are arranged inside and outside in sequence, the plurality of left annular labyrinth plates 63 and the plurality of right annular labyrinth plates 64 are all located between the inner annular baffle 61 and the outer annular baffle 62 and are arranged alternately in sequence and form a labyrinth oil seepage gap 65, correspondingly, the labyrinth oil seepage gap 65 is in a snake shape, the inner annular baffle 61 and the outer annular baffle 62 are both fixedly arranged on the left inner side surface or the right inner side surface of the annular oil storage cavity 41, the left annular labyrinth plate 63 is fixedly arranged on the left inner side surface of the annular oil storage cavity 41, the right The annular labyrinth plate 64 is fixedly arranged on the right inner side surface of the annular oil storage cavity 41. Preferably, the left annular labyrinth plate 63 is in the shape of a trumpet that is wider on the right and narrower on the left, and the right annular labyrinth plate 64 is in the shape of a trumpet that is wider on the left and narrower on the right. As a result, during the rotation of the gear, the lubricating oil in the main annular cavity can slowly penetrate into the secondary annular chamber 412 through the inner through hole 611 on the inner annular baffle 61, the labyrinth oil seepage gap 65 and the outer through hole 621 on the outer annular baffle 62 in sequence, and the volume of the secondary annular chamber 412 is smaller than the volume of the main annular chamber 411, so that most of the lubricating oil is mainly stored in the main annular cavity, and at the same time, it can well ensure that the secondary annular chamber 412 always has an appropriate amount of lubricating oil, so as to maintain smooth oil supply to the elastic oil transfer mechanism 5 during the high-speed rotation of the gear, and can better ensure stable and continuous oil discharge without excessive oil discharge.

[0036] In addition, the number of the left annular labyrinth plate 63 and the right annular labyrinth plate 64 is 2-3. In the present embodiment, the inner annular baffle plate 61, the outer annular baffle plate 62 and the left annular labyrinth plate 63 are all fixed on the annular shell 42, and the right annular labyrinth plate 64 is fixed on the annular cover plate 43.

[0037] In addition, elastic oil sealing mechanisms 66 are fixedly provided at the plurality of inner through holes 611 on the outer circumferential surface of the inner annular baffle 61. The elastic oil sealing mechanisms 66 include a fixed tube 661, a blocking block 662, and a second compression spring 663. The fixed tube 661 is fixedly provided on the outer circumferential surface of the inner annular baffle 61. An inner cavity 6611 communicating with the inner through hole 611 is provided in the fixed tube 661. The outer surface of the fixed tube 661 is provided with a The blocking block 662 is adapted to the inner cavity 6611 and is slidably disposed in the inner cavity 6611 and is used to block the inner through hole 611. The second compression spring 663 is disposed in the inner cavity 6611 and is used to always exert an elastic force on the blocking block 662 toward one side of the inner through hole 611. Thus, when the gear is not working, the elastic force exerted by the second compression spring 663 on the blocking block 662 The force of the second compression spring 663 can make the block 662 keep blocking the inner through hole 611. At this time, the lubricating oil in the main annular chamber 411 is not easy to penetrate into the secondary annular chamber 412 through the annular labyrinth penetration component 6, so as to better control the lubricating oil storage amount in the secondary annular chamber 412 when the gear is not working. When the gear is working and rotating at high speed, due to the action of centrifugal force, when the centrifugal force is greater than the elastic force of the second compression spring 663, the block 662 can move along the radial direction of the gear away from the inner annular baffle 61 and compress the second compression spring 663 to open the inner through hole 611. At this time, the lubricating oil in the main annular chamber 411 can enter the annular labyrinth penetration component 6 through the inner through hole 611, the inner cavity 6611 and the connecting port 6612 in turn, and slowly penetrate into the secondary annular chamber 412 through the annular labyrinth penetration component 6.

[0038] Preferably, the gear plate 1 and the gear teeth 2 are both made of metal and are integrally formed. In the present embodiment, an annular oil storage shell 4 is provided on both outer sides of the gear plate 1. Correspondingly, concentrically arranged annular mounting grooves 12 are provided on both outer sides of the gear plate 1. The inner side surface of the outer elastic layer 31 is provided with oil suction grooves running through both ends thereof, so that the elastic oil transfer mechanisms 5 on both sides of the gear plate 1 can cooperate well with the elastic oil extrusion mechanism 3 for oil supply.

[0039] In addition, an oil filling pipe 44 is fixedly provided on the inner circumferential surface of the annular oil storage shell 4, and a one-way valve is installed in the oil filling pipe 44. The one-way valve allows the lubricating oil to flow to one side of the annular oil storage shell 4. Correspondingly, both side surfaces of the gear plate 1 are provided with oil filling grooves adapted to the oil filling pipe 44. The oil filling pipe 44 is fixed in the oil filling grooves. At the same time, an oil filling channel communicated with the oil filling pipe 44 is also provided in the gear shaft for installing the gear. Therefore, it is convenient to fill the annular oil storage shell 4 with oil through the oil filling channel from one end of the gear shaft.

[0040] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A self-lubricating low-noise gear, comprising a gear plate and a plurality of gear teeth integrally formed and evenly arranged on the outer circumferential surface of the gear plate, characterized in that: An elastic oil extrusion mechanism is provided on the outer circumferential surface of the gear plate between the bottoms of two adjacent gear teeth, an annular oil storage shell is provided on at least one outer side surface of the gear plate, an annular oil storage cavity is provided in the annular oil storage shell, and a plurality of elastic oil transfer mechanisms corresponding to the elastic oil extrusion mechanisms are provided on the outer circumferential surface of the annular oil storage shell. During the meshing transmission process of the two gears, the gear teeth in the meshing area of ​​one of the gears can squeeze the elastic oil extrusion mechanism in the meshing area of ​​the other gear and squeeze the lubricating oil in the elastic oil extrusion mechanism out and flow it to the gear teeth, and synchronously squeeze the elastic oil transfer mechanism in the meshing area of ​​the other gear and connect the elastic oil transfer mechanism with the annular oil storage cavity. When the elastic oil transfer mechanism on the gear is in the non-meshing area, the elastic oil transfer mechanism can be elastically reset and connected with the elastic oil extrusion mechanism.

2. The self-lubricating low-noise gear according to claim 1, characterized in that: An axial mounting groove arranged along the axial direction is provided on the outer circumferential surface of the gear plate between the bottoms of two adjacent gear teeth, the elastic oil extrusion mechanism is adapted to the axial mounting groove and fixedly installed in the axial mounting groove, at least one outer side surface of the gear plate is provided with a concentrically arranged annular mounting groove, the annular oil storage shell is adapted to the annular mounting groove and fixedly installed in the annular mounting groove, at least one outer side surface of the gear plate is provided with a plurality of radial mounting grooves arranged along the radial direction and communicating with the annular mounting groove near the edge, the plurality of radial mounting grooves correspond to and communicate with the plurality of axial mounting grooves one by one, and the elastic oil transfer mechanism is adapted to and fixedly installed in the radial mounting groove.

3. The self-lubricating low-noise gear according to claim 2, characterized in that: The elastic oil extrusion mechanism includes an outer elastic layer in a strip shape and an inner sponge core, the outer elastic layer is adapted to the axial mounting groove and fixedly arranged in the axial mounting groove, the outer side surface of the outer elastic layer protrudes from the outer circumferential surface of the gear plate, the inner side surface of the outer elastic layer is provided with an oil suction groove penetrating at least one end thereof, the outer side surface of the outer elastic layer is provided with a plurality of oil outlet micropores communicating with the oil suction groove, and the inner sponge core is adapted to the oil suction groove and fixedly arranged in the oil suction groove.

4. The self-lubricating low-noise gear according to claim 2, characterized in that: The elastic oil transfer mechanism includes an outer tube, an inner rod and a first compression spring. The outer tube is adapted to the radial mounting groove and fixedly arranged in the radial mounting groove. The outer tube is fixedly arranged on the outer circumferential surface of the annular oil storage shell. A sliding cavity is provided in the outer tube that runs through both ends and communicates with the annular oil storage cavity. The length of the inner rod is greater than the depth of the sliding cavity. The inner rod includes an upper slider, a middle connecting rod and a lower slider that are connected in sequence. The upper slider and the lower slider are adapted to the sliding cavity and slide in cooperation. The outer diameter of the middle connecting rod is smaller than the inner diameter of the sliding cavity. The upper slider is provided with There is an oil outlet channel, a connecting channel is provided in the middle connecting rod, and an oil inlet channel is provided in the lower sliding block, the oil inlet channel, the connecting channel and the oil outlet channel are connected in sequence, a limiting protrusion is fixedly provided on the lower part of the inner surface of the sliding cavity, and a notch is provided on the limiting protrusion, the middle connecting rod passes through the notch and makes the lower sliding block and the upper sliding block respectively located on the inner and outer sides of the limiting protrusion, the first compression spring is sleeved on the middle connecting rod and is located between the upper sliding block and the limiting protrusion and makes the end surface of the upper sliding block away from the middle connecting rod protrude from the outer circumference of the gear plate.

5. The self-lubricating low-noise gear according to claim 4, characterized in that: The upper slider is fixedly arranged at one end of the middle connecting rod and the two are integrally formed. The other end of the middle connecting rod is threadedly sealed with the lower slider. An arc surface is arranged on the end of the upper slider away from the middle connecting rod.

6. The self-lubricating low-noise gear according to claim 4, characterized in that: The annular oil storage shell includes an annular shell and an annular cover plate, the annular shell is adapted to and fixedly arranged in the annular mounting groove, an annular oil storage groove open to one side is provided in the annular shell, the outer tube includes a strip tube body and a strip cover plate, the strip tube body is fixedly arranged on the outer circumferential surface of the annular shell, the strip cover plate is fixedly arranged on the inner side surface of the annular cover plate, a sliding groove is provided in the strip tube body which runs through both ends thereof and is open to one side and communicates with the annular oil storage groove, the annular cover plate is fixedly installed on the gear plate and is sealingly spliced ​​with the annular shell and the strip cover plate is sealingly spliced ​​with the strip tube body, the annular oil storage groove and the inner side surface of the annular cover plate are enclosed to form the annular oil storage cavity, and the sliding groove and the inner side surface of the strip cover plate are enclosed to form the sliding groove.

7. The self-lubricating low-noise gear according to claim 1, characterized in that: An annular labyrinth penetration component is fixedly arranged in the annular oil storage shell and divides the annular oil storage cavity into a main annular cavity and a secondary annular cavity which are sequentially arranged radially inward and outward. The elastic oil transfer mechanism can be connected to the secondary annular cavity. During the rotation of the gear, the lubricating oil in the main annular cavity can slowly penetrate into the secondary annular cavity through the annular labyrinth penetration component.

8. The self-lubricating low-noise gear according to claim 7, characterized in that: The annular labyrinth permeation assembly comprises an inner annular baffle, an outer annular baffle, a plurality of left annular labyrinth plates and a plurality of right annular labyrinth plates, the inner annular baffle being provided with a plurality of inner through holes evenly arranged along its circumferential direction, the outer annular baffle being provided with a plurality of outer through holes evenly arranged along its circumferential direction, the inner annular baffle and the outer annular baffle being arranged inside and outside in sequence, the plurality of left annular labyrinth plates and the plurality of right annular labyrinth plates are all located between the inner annular baffle and the outer annular baffle and are alternately arranged in sequence and form a labyrinth oil seepage gap, the inner annular baffle and the outer annular baffle are both fixedly arranged on the left inner side surface or the right inner side surface of the annular oil storage cavity, the left annular labyrinth plate is fixedly arranged on the left inner side surface of the annular oil storage cavity, and the right annular labyrinth plate is fixedly arranged on the right inner side surface of the annular oil storage cavity.

9. The self-lubricating low-noise gear according to claim 8, characterized in that: An elastic oil sealing mechanism is fixedly provided on the outer circumferential surface of the inner annular baffle at a plurality of the inner through holes, the elastic oil sealing mechanism comprises a fixed tube, a blocking block and a second compression spring, the fixed tube is fixedly provided on the outer circumferential surface of the inner annular baffle, an inner cavity communicated with the inner through hole is provided in the fixed tube, a connecting port communicated with the inner cavity is provided on the outer surface of the fixed tube, the blocking block is adapted to the inner cavity and is slidably provided in the inner cavity and is used to block the inner through hole, the second compression spring is provided in the inner cavity and is used to always keep applying an elastic force to the blocking block toward one side of the inner through hole.

10. The self-lubricating low-noise gear according to claim 8, characterized in that: The left annular labyrinth plate is in a trumpet shape that is wider on the right and narrower on the left, and the right annular labyrinth plate is in a trumpet shape that is wider on the left and narrower on the right.

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