Automatic oiling device and method for shock absorber

Abstract

The invention belongs to the technical field of shock absorber oiling, and particularly relates to an automatic shock absorber oiling device and a method thereof.The automatic shock absorber oiling device comprises a device table, and a shock absorber is composed of a cylinder barrel and a piston rod; a storage cylinder is arranged at the bottom of the device table; a through storage groove is further formed in the top of the device table, and the storage groove communicates with the storage cylinder. A pneumatic wrapping device is arranged on the storage barrel, the pneumatic wrapping device is used for fixing a cylinder barrel placed in the storage barrel, and a piston rod is vertically located at the top of the device table; the device table is further provided with a rotation angle transposition unit. The object cleaning and oiling assembly is used for cleaning and scraping impurities or dust adhered to the side wall of the piston rod, so that the situation that lubricating oil cannot be completely adhered to the surface of a rod body due to the impurities such as dust adhered to the surface of the side wall of the piston rod is avoided, and the oiling effect of the device on the shock absorber is improved; the lubricating oil can be evenly brushed, the brushing effect cannot be affected due to existence of impurities and the like, and the limitation of the device in use is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of oiling shock absorbers, and in particular relates to an automatic oiling device for shock absorbers and a method thereof. Background Art

[0002] A shock absorber, also called a shock absorber, is a device used to absorb and reduce mechanical vibrations, of which the cylinder and piston rod are one of the important components of the shock absorber. During the manufacturing process and daily use of the shock absorber, the main body (piston rod) of the shock absorber needs to be lubricated with oil to reduce the friction between the piston rod and the inner wall of the cylinder, reduce the degree of wear, avoid jamming, and ensure the normal operation and shock absorbing performance of the shock absorber. At the same time, in order to ensure the efficiency of oiling, it is generally carried out automatically to avoid manual operation that may increase the oiling time or cause uneven oiling.

[0003] However, when the existing automatic oiling device for shock absorbers applies lubricating oil to the piston rod, the rod body is not cleaned, so the piston rod is applied with lubricating oil in a state where there is dust, oil or other impurities on the surface, which causes the lubricating oil to fail to completely adhere to the surface of the rod body, making it difficult to evenly apply the lubricating oil to the rod body, thereby reducing the oiling effect of the device on the shock absorber; at the same time, when the shock absorber is used in this situation, that is, when it reciprocates, the friction between the piston rod and the inner wall of the cylinder barrel will be aggravated, which will not only easily cause damage to the piston rod and the cylinder barrel, thus shortening the service life of the shock absorber, but also make the contact part between the seal and the piston rod unable to be fully lubricated, thereby increasing the friction between the two, easily causing the seal to wear and deform, and at the same time, impurities are easily embedded in the seal to destroy its sealing performance, resulting in hydraulic oil leakage, thereby affecting the normal operation of the shock absorber, and making the device have strong limitations when used. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a shock absorber automatic oiling device and method thereof, which effectively solves the problems in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: An automatic oiling device for a shock absorber, comprising a device table, and the shock absorber is composed of a cylinder barrel and a piston rod; a storage cylinder is provided at the bottom of the device table; a through storage groove is further provided at the top of the device table, and the storage groove is communicated with the storage cylinder; a pneumatic tightening device is provided on the storage cylinder, and the pneumatic tightening device is used to fix the cylinder barrel placed in the storage cylinder, and the piston rod is vertically located at the top of the device table; a rotation angle conversion unit is further provided on the device table, and the rotation angle conversion unit is used to perform oiling operations on the piston rod at different positions; the rotation angle conversion unit further includes a convex ring track installed at the top of the device table, and the convex ring track is coaxial with the center of the storage cylinder; two semi-ring sliders symmetrically arranged with the piston rod as the axis of symmetry are slidably connected to the convex ring track, and a cleaning and oiling assembly is provided on the semi-ring slider, and the cleaning and oiling assembly is used to clean the impurities adhered to the piston rod and to apply lubricating oil.

[0006] Preferably, the outer side walls of the two semi-ring sliders are jointly connected with a hollow gear ring coaxial with the center of the storage cylinder, and the hollow gear ring is meshed with a rotating gear; a rotating motor is installed at the bottom of the device table, and the output end of the rotating motor passes through the device table and is connected to the rotating gear; a telescopic cylinder is installed at the top of the semi-ring slider, and the output end of the telescopic cylinder is installed with a position moving square plate, and the two position moving square plates are jointly connected with a semi-ring circular plate, and two guiding roller shafts are installed at the central position of the semi-ring circular plate.

[0007] Preferably, the cleaning and oiling assembly includes a rotating shaft installed at the top of the position moving square plate, a rotating pulley is installed at the end of the rotating shaft away from the position moving square plate, and a number of stopping slots arranged in a circle with its center are provided at the top of the rotating pulley; the two rotating pulleys are jointly connected with a transmission belt, and the middle position of the transmission belt is connected to the two guiding roller shafts to change the shape of the transmission belt; a driving gear is further installed on the rotating shaft between the rotating pulley and the position moving square plate, and the driving gear is meshed with two symmetric driving racks; a driving square plate is installed on the side of the driving rack away from the driving gear, and the two driving square plates are jointly connected with a driving square column, and a driving base is slidably connected to the driving square column, and the driving base is installed on the position moving square plate; a driving spring is sleeved on the driving square column, one end of the driving spring is fixedly connected to the driving square plate, and the other end is fixedly connected to the driving base.

[0008] Preferably, a scraping knife is installed on one of the driving racks, and the side wall of the piston rod is located on the moving path of the scraping knife; an auxiliary moving cross plate is installed on the other driving rack, and two through auxiliary moving square columns are symmetrically installed on the side of the auxiliary moving cross plate close to the scraping knife, and the auxiliary moving square columns and the auxiliary moving cross plate are slidably matched; the two auxiliary moving square columns are jointly connected with a U-shaped square seat at the end close to the scraping knife, and an oiling roller is installed in the U-shaped square seat, and the side wall of the piston rod is located at the moving path of the oiling roller.

[0009] Preferably, a plurality of through auxiliary movement lock holes are provided on the side surface of the auxiliary movement square column; an auxiliary movement spring is sleeved on the auxiliary movement square column, one end of the auxiliary movement spring is fixedly connected with the U-shaped square seat, and the other end is fixedly connected with the auxiliary movement cross plate; the two scraping knives are respectively located on the driven racks on the opposite sides engaged by the two driving gears.

[0010] Preferably, the pneumatic tightening device includes an airbag installed on the inner side wall of the storage cylinder, a rubber pad is installed on the inner side wall of the airbag, and the side wall of the cylinder in the shock absorber is located on the moving path of the rubber pad; the hollow tooth ring is meshed with two braking gears symmetrically arranged with the piston rod as the axis of symmetry, a braking rotating shaft is installed on the braking gear, the braking rotating shaft passes through the device table and is connected with a braking disc, and a braking cylinder is installed at the edge of the bottom of the braking disc; a braking torque block is further provided on the side of the braking disc away from the device table, a braking chute is further provided on the side of the braking torque block close to the braking disc, and the braking chute is slidably matched with the braking cylinder.

[0011] Preferably, a limiting and rotation-forbidding module is further provided on the semi-circular plate; the limiting and rotation-forbidding module includes two limiting square columns fixedly installed on the side of the semi-circular plate away from the device table, a limiting bent plate is slidably connected to the two limiting square columns together, a stopping plug is installed on the side of the limiting bent plate close to the device table, and a stopping slot is located on the moving path of the stopping plug; a limiting spring is sleeved on the limiting square column, one end of the limiting spring is fixedly connected with the semi-circular plate, and the other end is fixedly connected with the limiting bent plate.

[0012] Preferably, two symmetrical limiting sliding columns are installed on one side of the braking torque block, a limiting base is slidably connected to the two limiting sliding columns together, and the limiting base is installed on the device table; a braking square plate is installed on the other side of the braking torque block; a braking square box is further installed at the bottom of the device table, the side of the braking square box close to the braking torque block is open and is slidably matched with the braking square plate; the side of the braking square box away from the braking torque block is closed and an air outlet valve is further installed, an air outlet pipe is installed on the air outlet valve, and the air outlet pipe passes through the storage cylinder and is communicated with the airbag; airtight valves are further provided on both sides of the braking square box, and the airtight valves are located between the air outlet valve and the braking square plate; a pressure circular plate is further slidably connected in the storage cylinder, and the top of the pressure circular plate is located on the moving path of the bottom of the cylinder; a plurality of pressure springs arranged in a circular array with the storage cylinder as the center are further provided in the storage cylinder, one end of the pressure spring is fixedly connected with the inner bottom surface of the storage cylinder, and the other end is fixedly connected with the bottom of the pressure circular plate.

[0013] Preferably, a position-changing and distance-locking mechanism is further provided on the auxiliary moving cross plate; the position-changing and distance-locking mechanism includes a positioning cylinder installed on the auxiliary moving cross plate, a positioning long plate is slidably connected to the positioning cylinder, and an auxiliary moving locking plate is further installed on one side of the positioning long plate close to the auxiliary moving cross plate. The auxiliary moving locking plate passes through the auxiliary moving cross plate and is connected to one of the auxiliary moving locking holes; a positioning spring is further sleeved on the positioning cylinder. One end of the positioning spring is fixedly connected to the auxiliary moving cross plate, and the other end is connected to an auxiliary moving limiting plate. The auxiliary moving limiting plate is installed at one end of the positioning cylinder away from the auxiliary moving cross plate.

[0014] The present invention also provides an automatic oiling method for a shock absorber, including the following steps: S1. Place the shock absorber to be oiled into the storage cylinder and use a pneumatic tightening device to fix the shock absorber at the current position; S2. Use a rotation angle changing unit to clean and oil the shock absorber at different positions and heights; S3. Operate the cleaning and oiling assembly to clean the impurities adhered to the piston rod and apply lubricating oil.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) One scraping knife is installed at the driving rack on the left side of the first driving gear, and the other scraping knife is installed at the driving rack on the right side of the second driving gear. The two driving gears rotate synchronously, so that the driving racks on the left and right sides drive the scraping knives to move in the direction close to the piston rod, so that the two scraping knives move relatively while the two oiling rollers move away from each other. The two relatively moving scraping knives contact both sides of the piston rod. When the rotation angle changing unit drives the two scraping knives to rotate, they rotate along the side wall of the piston rod, so as to clean and scrape the impurities or dust adhered to the side wall of the piston rod, avoiding dust and other impurities adhering to the surface of the side wall of the piston rod, resulting in the lubricating oil not being able to fully adhere to the surface of the rod body, so that the lubricating oil can be evenly applied to the rod body, improving the oiling effect of the device on the shock absorber; (2) Reverse the drive gear so that the two scraping knives that originally moved relative to each other move away from each other, while the two oiling rollers that move away from each other move relative to each other and move in the direction close to the side wall of the piston rod, so that the oiling rollers contact the side wall of the piston rod. Under the action of the rotation angle conversion unit, the oiling rollers can rotate along the side wall of the piston rod to apply lubricating oil on the side wall of the piston rod, thereby completing the oiling operation of the shock absorber. And the oiling rollers can be replaced with objects such as brushes according to different adaptation situations for brushing operations, so that the side wall of the piston rod is cleaned before applying lubricating oil and other operations, so that the lubricating oil can be evenly applied and the brushing effect will not be affected by the existence of impurities, etc., avoiding damage to both the piston rod and the cylinder barrel caused by the friction between them during the reciprocating movement, shortening the service life of the shock absorber, enabling the contact part between the seal and the piston rod to be fully lubricated, thereby reducing the friction force between the two, avoiding deformation and wear of the seal, preventing impurities from being embedded in the seal and destroying its sealing performance resulting in hydraulic oil leakage, reducing the limitations of the device during use and not affecting the normal operation of the shock absorber. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a sectional view of the storage cylinder of the present invention; Figure 3 is a schematic diagram of the belt structure of the present invention; Figure 4 is a schematic diagram of the oiling roller structure of the present invention; Figure 5 is a schematic diagram of the brake cylinder structure of the present invention; Figure 6 is a schematic diagram of the brake torque block structure of the present invention; Figure 7 is a schematic diagram of the stop plug structure of the present invention; Figure 8 is a sectional view of the airbag of the present invention; Figure 9 is an exploded view of the auxiliary moving cross plate of the present invention; Figure 10 is a sectional view of the brake square box of the present invention; Figure 11 is a schematic diagram of the scraping knife structure of the present invention; In the figure: 1, device table; 2, storage cylinder; 3, convex ring track; 4, semi-circular slider; 5, hollow gear ring; 6, rotating gear; 7, rotating motor; 8, telescopic cylinder; 9, displacement square plate; 10, semi-circular round plate; 11, guiding roller shaft; 12, rotating shaft; 13, rotating pulley; 14, stop slot; 15, transmission belt; 16, driving gear; 17, driving rack; 18, driving square plate; 19, driving square column; 20, driving base; 21, driving spring; 22, scraping knife; 23, auxiliary transverse plate; 24, auxiliary square column; 25, U-shaped square seat; 26, oiling roller; 27, auxiliary locking hole; 28, auxiliary spring; 29, airbag; 30, rubber pad; 31, braking gear; 32, braking shaft; 33, braking disc; 34, braking cylinder; 35, braking torque block; 36, braking chute; 37, limiting square column; 38, limiting bent plate; 39, stop inserting rod; 40, limiting spring; 41, limiting sliding column; 42, limiting base; 43, braking square plate; 44, braking square box; 45, air outlet pipe; 46, pressure round plate; 47, pressure spring; 48, positioning cylinder; 49, positioning long plate; 50, auxiliary locking plate; 51, positioning spring; 52, auxiliary limiting plate. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment, consisting of Figures 1 to 11Given that, the present invention includes a device table 1, and the shock absorber is composed of a cylinder barrel and a piston rod; a storage cylinder 2 is provided at the bottom of the device table 1; a through storage groove is further provided at the top of the device table 1, and the storage groove is communicated with the storage cylinder 2; a pneumatic tightening device is provided on the storage cylinder 2, and the pneumatic tightening device is used to fix the cylinder barrel placed in the storage cylinder 2, and the piston rod is vertically located at the top of the device table 1; a rotation angle conversion unit is further provided on the device table 1, and the rotation angle conversion unit is used to oil the piston rod at different positions; the rotation angle conversion unit further includes a convex ring track 3 installed at the top of the device table 1, and the convex ring track 3 is coaxial with the center of the storage cylinder 2; two semi-ring sliders 4 symmetrically arranged with the piston rod as the axis of symmetry are slidably connected to the convex ring track 3, and a cleaning and oiling assembly is provided on the semi-ring slider 4, and the cleaning and oiling assembly is used to clean the impurities adhered to the piston rod and to apply lubricating oil; the outer side walls of the two semi-ring sliders 4 are jointly connected with a hollow gear ring 5 coaxial with the center of the storage cylinder 2, and the hollow gear ring 5 is meshed with a rotating gear 6; a rotating motor 7 is installed at the bottom of the device table 1, and the output end of the rotating motor 7 passes through the device table 1 and is connected to the rotating gear 6; a telescopic cylinder 8 is installed at the top of the semi-ring slider 4, and the output end of the telescopic cylinder 8 is installed with a position-moving square plate 9, and the two position-moving square plates 9 are jointly connected with a semi-ring circular plate 10, and two guide roller shafts 11 are installed at the central position of the semi-ring circular plate 10. By starting the rotating motor 7, the output end thereof drives the rotating gear 6 to rotate, which meshes with the hollow gear ring 5 to rotate, so that the two semi-ring sliders 4 thereon are rotationally limited on the convex ring track 3, thereby enabling the two semi-ring sliders 4 to rotate synchronously and in the same direction, so as to drive the oiling roller 26 or the scraping knife 22 to rotate along the side wall of the piston rod for work, and by operating the telescopic cylinder 8 to adjust the height of the oiling roller 26 or the scraping knife 22, so that it can work on the side wall of the piston rod at different heights, for comprehensively cleaning or oiling the side wall of the piston rod and the like, further improving the oiling effect of the device, expanding the working range of the oiling roller 26 or the scraping knife 22, and thus reducing the limitation of the device during use.

[0020] The cleaning and oiling component of this embodiment includes a rotating shaft 12 installed on the top of the position-moving square plate 9. One end of the rotating shaft 12 away from the position-moving square plate 9 is installed with a rotating pulley 13. The top of the rotating pulley 13 is provided with a number of anti-stop slots 14 arranged around its center; the two rotating pulleys 13 are jointly connected with a transmission belt 15. The middle position of the transmission belt 15 is connected with two guiding roller shafts 11 to change the shape of the transmission belt 15; a driving gear 16 is also installed on the rotating shaft 12 between the rotating pulley 13 and the position-moving square plate 9. The driving gear 16 is meshed and connected with two symmetric driving racks 17; on the side of the driving rack 17 away from the driving gear 16, a driving square plate 18 is installed. The two driving square plates 18 are jointly connected with a driving square column 19. A driving base 20 is slidably connected to the driving square column 19, and the driving base 20 is installed on the position-moving square plate 9; a driving spring 21 is sleeved on the driving square column 19. One end of the driving spring 21 is fixedly connected with the driving square plate 18, and the other end is fixedly connected with the driving base 20; a scraping knife 22 is installed on one of the driving racks 17, and the side wall of the piston rod is located on the moving path of the scraping knife 22; an auxiliary moving cross plate 23 is installed on the other driving rack 17. Two through auxiliary moving square columns 24 are symmetrically installed on the side of the auxiliary moving cross plate 23 close to the scraping knife 22. The auxiliary moving square columns 24 and the auxiliary moving cross plate 23 are slidably matched; the two ends of the two auxiliary moving square columns 24 close to the scraping knife 22 are jointly connected with a U-shaped square seat 25. An oiling roller 26 is installed in the U-shaped square seat 25, and the side wall of the piston rod is located at the moving path of the oiling roller 26; a number of through auxiliary moving locking holes 27 are provided on the side surface of the auxiliary moving square column 24; an auxiliary moving spring 28 is sleeved on the auxiliary moving square column 24. One end of the auxiliary moving spring 28 is fixedly connected with the U-shaped square seat 25, and the other end is fixedly connected with the auxiliary moving cross plate 23; the two scraping knives 22 are respectively located on the driving racks 17 on the different sides meshed by the two driving gears 16; When the shock absorber is clamped on the device table 1 and needs to be oiled, the impurities or dust adhering to the piston rod need to be cleaned before that. At this time, by rotating one of the rotating pulleys 13, it drives the other rotating pulley 13 to rotate under the action of the transmission belt 15 and the two guide rollers 11, so that the two rotating pulleys 13 rotate synchronously. Under the action of the rotating shaft 12, it drives the driving gear 16 to rotate, which meshes with the two driving racks 17 to move. Through the driving square column 19, it slides on the driving base 20, making the driving spring 21 in a buffered state. Since the two driving racks 17 are symmetric at the driving gear 16, one of the two driving racks 17 moves towards the piston rod, and the other moves away from the piston rod. Scraping knives 22 and oiling rollers 26 are respectively installed on the two driving racks 17, and the two scraping knives 22 are respectively located on the driving racks 17 on the opposite sides meshed by the two driving gears 16. That is to say, one scraping knife 22 is installed at the left driving rack 17 of the first driving gear 16, and the other scraping knife 22 is installed at the right driving rack 17 of the second driving gear 16. And the two driving gears 16 rotate synchronously, so that the driving racks 17 on the left and right sides both drive the scraping knives 22 to move towards the piston rod, making the two scraping knives 22 move relatively while the two oiling rollers 26 move away from each other. The two relatively moving scraping knives 22 contact both sides of the piston rod. When the rotation angle conversion unit drives the two scraping knives 22 to rotate, they rotate along the side wall of the piston rod, thereby cleaning and scraping the impurities or dust adhering to the side wall of the piston rod, avoiding dust and other impurities adhering to the surface of the piston rod side wall, resulting in the lubricating oil not being able to fully adhere to the rod body surface. Thus, the lubricating oil can be evenly coated on the rod body, improving the oiling effect of the device on the shock absorber. By reversing the driving gear 16, the two originally relatively moving scraping knives 22 move away from each other, while the two oiling rollers 26 moving away from each other move relatively and close to the side wall of the piston rod, making the oiling rollers 26 contact the side wall of the piston rod. Under the action of the rotation angle conversion unit, the oiling rollers 26 can rotate along the side wall of the piston rod to coat the lubricating oil on the side wall of the piston rod, thus completing the oiling operation of the shock absorber. And the oiling rollers 26 can be replaced with objects such as brushes according to different adaptation situations for coating operations. The side wall of the piston rod is cleaned before coating the lubricating oil and other operations, so that the lubricating oil can be evenly coated and the coating effect will not be affected by the existence of impurities. It avoids the friction between the piston rod and the cylinder barrel during reciprocating motion from damaging both of them and shortening the service life of the shock absorber. The contact part between the seal and the piston rod can be fully lubricated, thereby reducing the friction between the two, avoiding the deformation and wear of the seal, preventing impurities from being embedded in the seal and damaging its sealing performance, resulting in hydraulic oil leakage, and reducing the limitations of the device during use, without affecting the normal operation of the shock absorber.

[0021] The pneumatic tightening device of this embodiment includes an airbag 29 installed on the inner side wall of the storage cylinder 2, a rubber pad 30 is installed at the inner side wall of the airbag 29, and the side wall of the cylinder in the shock absorber is located on the moving path of the rubber pad 30; the hollow gear ring 5 is meshed with two braking gears 31 symmetrically arranged with the piston rod as the axis of symmetry, a braking rotating shaft 32 is installed on the braking gear 31, the braking rotating shaft 32 passes through the device table 1 and is connected with a braking disc 33, and a braking cylinder 34 is installed at the edge of the bottom of the braking disc 33; on the side of the braking disc 33 away from the device table 1, there is also a braking torque block 35, and a braking chute 36 is also provided on the side of the braking torque block 35 close to the braking disc 33, and the braking chute 36 is slidably matched with the braking cylinder 34; on one side of the braking torque block 35, two symmetrical limiting sliding columns 41 are installed, and the two limiting sliding columns 41 are jointly slidably connected with a limiting base 42, and the limiting base 42 is installed on the device table 1; on the other side of the braking torque block 35, a braking square plate 43 is installed; at the bottom of the device table 1, there is also a braking square box 44, and one side of the braking square box 44 close to the braking torque block 35 is open and is slidably matched with the braking square plate 43; the side of the braking square box 44 away from the braking torque block 35 is closed and an air outlet valve is also installed, an air outlet pipe 45 is installed on the air outlet valve, and the air outlet pipe 45 passes through the storage cylinder 2 and is communicated with the airbag 29; airtight valves are also provided on both sides of the braking square box 44, and the airtight valves are located between the air outlet valve and the braking square plate 43; a pressure circular plate 46 is also slidably connected in the storage cylinder 2, and the top of the pressure circular plate 46 is located on the moving path of the bottom of the cylinder; in the storage cylinder 2, there are also several pressure springs 47 arranged in a circular array with the storage cylinder 2 as the center, one end of the pressure spring 47 is fixedly connected with the inner bottom surface of the storage cylinder 2, and the other end is fixedly connected with the bottom of the pressure circular plate 46; When the shock absorber needs to be oiled, it needs to be fixedly set. When the shock absorber passes through the storage groove and is placed in the storage cylinder 2, the bottom of the cylinder on the shock absorber contacts the top of the pressure circular plate 46. Under the action of its own gravity, several pressure springs 47 of the shock absorber are in a buffered state, preventing the shock absorber from falling into the storage cylinder 2 quickly without controlling the speed when placed in the storage cylinder 2, which may cause damage to the shock absorber. The buffering force brought by several pressure springs 47 reduces the impact force on the shock absorber during installation or use, improving the stability and service life of the shock absorber during oiling; when the cylinder part of the shock absorber falls into the storage cylinder 2, the piston rod part is located on the top of the device table 1, waiting for the oiling operation; at this time, when the cleaning and oiling assembly and the rotation angle conversion unit oil the side wall of the piston rod, the rotating hollow gear ring 5 drives the two meshing brake gears 31 to rotate. No matter which direction the hollow gear ring 5 rotates, the rotating brake gear 31 drives the brake disc 33 to rotate through the brake rotating shaft 32, which drives the brake cylinder 34 to rotate, causing it to reciprocate in the brake chute 36, thereby driving the brake torque block 35 to move limitedly at the limit base 42 through the limit slide post 41, enabling the brake torque block 35 to drive the brake square plate 43 to reciprocate; since the brake square plate 43 reciprocates in the brake square box 44, when the brake square plate 43 moves towards the air outlet valve, the air shut-off valve is in the closed state at this time, causing the gas in the brake square box 44 to be squeezed into the air outlet pipe 45 by the brake square plate 43, and then the air outlet pipe 45 conveys the gas to the airbag 29; when the brake square plate 43 moves back, the air outlet valve closes and the air shut-off valve opens simultaneously, allowing the outside gas to be inhaled into the brake square box 44 to wait for the next time the brake square plate 43 moves towards the air outlet valve, and then the inhaled gas is sent into the airbag 29 again through the air outlet pipe 45, causing the airbag 29 to continuously inflate with gas, thereby wrapping the cylinder and causing the inflated airbag 29 to drive the rubber pad 30 on its inner side wall to contact the side wall of the cylinder, increasing the friction between the airbag 29 and the shock absorber, fixing the shock absorber in the current position, preventing the shock absorber from shaking during the oiling operation and affecting the oiling effect of the device, and further improving the oiling effect of the device; at the same time, the airbag 29 can also clamp shock absorbers of different diameters. When encountering a shock absorber with a larger diameter, the side wall of the airbag 29 contacts the shock absorber prematurely. At this time, the airbag 29 cannot enter gas, and the air outlet valve closes to prevent the gas in the airbag 29 from leaking, resulting in the airbag 29 releasing the clamping operation on the shock absorber. At this time, a pipe can be installed at the air shut-off valve, and gas enters and exits through this pipe. The gas exiting can extend around the piston rod through the pipe, enabling the scraping knife 22 to be used to remove impurities adhering to the side wall of the piston rod during use; at the same time, the oiling roller 26 can also accelerate the cooling speed of the oil body during use, reducing the limitations of the device during use and further improving the oiling effect of the device on the shock absorber.

[0022] A limited movement and rotation prevention module is also provided on the semi-circular plate 10 of this embodiment; the limited movement and rotation prevention module includes two limited movement square columns 37 fixedly installed on the side of the semi-circular plate 10 away from the device table 1, and a limited movement bent plate 38 is slidably connected to the two limited movement square columns 37. A stop insertion rod 39 is installed on the side of the limited movement bent plate 38 close to the device table 1, and the stop slot 14 is located on the moving path of the stop insertion rod 39; a limited movement spring 40 is sleeved on the limited movement square column 37, one end of the limited movement spring 40 is fixedly connected to the semi-circular plate 10, and the other end is fixedly connected to the limited movement bent plate 38; When the device needs to perform an oiling operation on the piston rod in the shock absorber, a cleaning and oiling assembly needs to be used to brush lubricating oil on the piston rod. At this time, it is necessary to drive the gear 16 to rotate according to the situation to change the working order of the oiling roller 26 and the scraping knife 22. At this time, by pulling up the limited movement bent plate 38, it is limitedly slid on the limited movement square column 37, so that the limited movement spring 40 is in a buffered state, and then the stop insertion rod 39 on the limited movement bent plate 38 no longer contacts the stop slot 14, so as to release the limit setting of the rotating pulley 13, so that it can drive the driving gear 16 to rotate through the rotating shaft 12, so that the working order of the scraping knife 22 and the oiling roller 26 can be changed, that is, the piston rod is oiled by the oiling roller 26 on the cleaning and oiling assembly, or the impurities adhered to the piston rod are cleaned by the scraping knife 22; when the scraping knife 22 or the oiling roller 26 needs to stay in the current position to work on the piston rod for a long time, by loosening the limited movement bent plate 38, it drives the stop insertion rod 39 on the limited movement bent plate 38 to reset and move through the reset of the limited movement spring 40, so that it can be connected to the stop slot 14, so as to limit the rotating pulley 13, so that the driving gear 16 on it cannot rotate, thus avoiding the movement of the scraping knife 22 and the oiling roller 26 caused by non-human factors, etc., so that the scraping knife 22 or the oiling roller 26 can work on the piston rod of the shock absorber at the current position for a long time, reducing the limitation of the device during use, and further improving the use effect of the device.

[0023] A position-changing and distance-locking mechanism is also provided on the auxiliary moving cross plate 23 of this embodiment; the position-changing and distance-locking mechanism includes a positioning cylinder 48 installed on the auxiliary moving cross plate 23, a positioning long plate 49 is slidably connected to the positioning cylinder 48, and an auxiliary moving locking plate 50 is also installed on the side of the positioning long plate 49 close to the auxiliary moving cross plate 23. The auxiliary moving locking plate 50 passes through the auxiliary moving cross plate 23 and is connected to one of the auxiliary moving locking holes 27; a positioning spring 51 is also sleeved on the positioning cylinder 48, one end of the positioning spring 51 is fixedly connected to the auxiliary moving cross plate 23, and the other end is connected to an auxiliary moving limiting plate 52, and the auxiliary moving limiting plate 52 is installed at the end of the positioning cylinder 48 away from the auxiliary moving cross plate 23; When the oiling roller 26 applies lubricating oil to the side wall of the piston rod, since the diameters of the piston rods in shock absorbers of different models are different, it is necessary to adjust the distance between the oiling roller 26 and the side wall of the piston rod. At this time, by pulling out the positioning long plate 49 outward, it is limited to move on the positioning cylinder 48, and then the positioning spring 51 is in a buffered state, so that the auxiliary moving lock plate 50 on the positioning long plate 49 disengages from the auxiliary moving cross plate 23 and is no longer connected to the auxiliary moving lock hole 27, thus the limit setting for the auxiliary moving square column 24 is released. At this time, the auxiliary moving square column 24 can be pushed to move in a limited way on the auxiliary moving cross plate 23, so that the auxiliary moving spring 28 is in a buffered state, and then the oiling roller 26 on the U-shaped square seat 25 can be driven to move, making the distance between it and the side wall of the piston rod adjustable, avoiding the situation that the two cannot contact and the oiling roller 26 cannot apply the lubricating oil to the side wall of the piston rod, and improving the oiling effect of the device; After the adjustment of the distance between the oiling roller 26 and the side wall of the piston rod is completed, by releasing the originally outwardly pulled positioning long plate 49, it drives the auxiliary moving lock plate 50 to reset and move under the reset of the positioning spring 51. When it passes through the auxiliary moving cross plate 23 and is connected to one of the auxiliary moving lock holes 27, the auxiliary moving square column 24 is limited to the current position and cannot move, so that the oiling roller 26 is fixed at the currently adjusted position, avoiding the change of the distance between the two during the long-term oiling of the piston rod, reducing the limitation of the device during use, and improving the use effect of the device; at the same time, when the auxiliary moving square column 24 is limited, the auxiliary moving spring 28 in the buffered state cannot be reset, and the elastic force generated will act on the auxiliary moving lock plate 50, thus strengthening the contact strength and friction force between the auxiliary moving lock plate 50 and the auxiliary moving lock hole 27, avoiding the phenomenon that the auxiliary moving lock plate 50 is displaced due to non-human factors, and further improving the oiling effect of the device.

[0024] The present invention also provides an automatic oiling method for shock absorbers, including the following steps: S1. Put the shock absorber to be oiled into the storage cylinder 2 and use a pneumatic tightening device to fix the shock absorber at the current position; S2. Use the rotation angle conversion unit to clean and oil the shock absorber at different positions and heights; S3. Operate the cleaning and oiling assembly to clean the impurities adhered to the piston rod and apply the lubricating oil.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic oiling device for shock absorbers, comprising a device table (1), and the shock absorber is composed of a cylinder barrel and a piston rod; characterized in that: A storage cylinder (2) is provided at the bottom of the device table (1); a through storage groove is further provided at the top of the device table (1), and the storage groove is communicated with the storage cylinder (2); a pneumatic tightening device is arranged on the storage cylinder (2), and the pneumatic tightening device is used for fixing the cylinder barrel placed in the storage cylinder (2), and the piston rod is vertically located at the top of the device table (1); a rotation angle conversion unit is further arranged on the device table (1), and the rotation angle conversion unit is used for oiling the piston rod at different positions; the rotation angle conversion unit further includes a convex ring rail (3) installed at the top of the device table (1), and the convex ring rail (3) is coaxial with the center of the storage cylinder (2); two semi-ring sliders (4) symmetrically arranged with the piston rod as the axis of symmetry are slidably connected to the convex ring rail (3), and a cleaning and oiling assembly is arranged on the semi-ring slider (4), and the cleaning and oiling assembly is used for cleaning the impurities adhered to the piston rod and for applying lubricating oil.

2. The automatic oiling device for a shock absorber according to claim 1, characterized in that: A hollow tooth ring (5) coaxial with the center of the storage cylinder (2) is commonly connected to the outer side walls of the two semi-ring sliders (4), and the hollow tooth ring (5) is meshed with a rotating gear (6); a rotating motor (7) is installed at the bottom of the device table (1), and the output end of the rotating motor (7) passes through the device table (1) and is connected to the rotating gear (6); a telescopic cylinder (8) is installed at the top of the semi-ring slider (4), a position moving square plate (9) is installed at the output end of the telescopic cylinder (8), two position moving square plates (9) are commonly connected to a semi-ring circular plate (10), and two guiding roller shafts (11) are installed at the central position of the semi-ring circular plate (10).

3. The automatic oiling device for a shock absorber according to claim 2, characterized in that: The cleaning and oiling assembly includes a rotating shaft (12) installed at the top of the position moving square plate (9), a rotating pulley (13) is installed at the end of the rotating shaft (12) far from the position moving square plate (9), and a number of stop slots (14) arranged in a circle with its center are provided at the top of the rotating pulley (13); a transmission belt (15) is commonly connected to the two rotating pulleys (13), and the middle end of the transmission belt (15) is connected to the two guiding roller shafts (11) to change the shape of the transmission belt (15); a driving gear (16) located between the rotating pulley (13) and the position moving square plate (9) is further installed on the rotating shaft (12), and the driving gear (16) is meshed with two symmetric driving racks (17); a driving square plate (18) is installed on the side of the driving rack (17) far from the driving gear (16), two driving square plates (18) are commonly connected to a driving square column (19), a driving base (20) is slidably connected to the driving square column (19), and the driving base (20) is installed on the position moving square plate (9); a driving spring (21) is sleeved on the driving square column (19), one end of the driving spring (21) is fixedly connected to the driving square plate (18), and the other end is fixedly connected to the driving base (20).

4. The automatic oiling device for a shock absorber according to claim 3, wherein: A scraping knife (22) is installed on one of the driving racks (17), and the side wall of the piston rod is located on the moving path of the scraping knife (22); a secondary moving cross plate (23) is installed on the other driving rack (17), and two penetrating secondary moving square columns (24) are symmetrically installed on one side of the secondary moving cross plate (23) close to the scraping knife (22). The secondary moving square columns (24) are slidably matched with the secondary moving cross plate (23); the ends of the two secondary moving square columns (24) close to the scraping knife (22) are jointly connected with a U-shaped square seat (25), and an oiling roller (26) is installed in the U-shaped square seat (25). The side wall of the piston rod is located at the moving path of the oiling roller (26).

5. The automatic oiling device for a shock absorber according to claim 4, characterized in that: A number of penetrating secondary moving locking holes (27) are provided on the side surface of the secondary moving square column (24); a secondary moving spring (28) is sleeved on the secondary moving square column (24). One end of the secondary moving spring (28) is fixedly connected with the U-shaped square seat (25), and the other end is fixedly connected with the secondary moving cross plate (23); the two scraping knives (22) are respectively located on the driving racks (17) on the different sides meshed by the two driving gears (16).

6. The automatic oiling device for a shock absorber according to claim 2, characterized in that: The pneumatic tightening device includes an airbag (29) installed on the inner side wall of the storage cylinder (2). A rubber pad (30) is installed on the inner side wall of the airbag (29), and the side wall of the cylinder barrel in the shock absorber is located on the moving path of the rubber pad (30); the hollow tooth ring (5) is meshed and connected with two braking gears (31) symmetrically arranged with the piston rod as the axis of symmetry. A braking rotating shaft (32) is installed on the braking gear (31), and the braking rotating shaft (32) passes through the device table (1) and is connected with a braking disc (33). A braking column body (34) is installed at the edge of the bottom of the braking disc (33); a braking torque block (35) is further provided on the side of the braking disc (33) away from the device table (1). A braking chute (36) is further provided on the side of the braking torque block (35) close to the braking disc (33), and the braking chute (36) is slidably matched with the braking column body (34).

7. The automatic oiling device for a shock absorber according to claim 3, characterized in that: A limiting and rotation-forbidding module is further arranged on the semi-circular plate (10); the limiting and rotation-forbidding module includes two limiting square columns (37) fixedly installed on the side of the semi-circular plate (10) away from the device table (1). A limiting bent plate (38) is jointly slidably connected to the two limiting square columns (37). A stopping insertion rod (39) is installed on the side of the limiting bent plate (38) close to the device table (1), and the stopping slot (14) is located on the moving path of the stopping insertion rod (39); a limiting spring (40) is sleeved on the limiting square column (37). One end of the limiting spring (40) is fixedly connected with the semi-circular plate (10), and the other end is fixedly connected with the limiting bent plate (38).

8. An automatic oiling device for a shock absorber according to claim 6, characterized in that: On one side of the braking torque block (35), two symmetrical limit sliding columns (41) are installed. The two limit sliding columns (41) are jointly and slidably connected to a limit base (42), and the limit base (42) is installed on the device table (1); on the other side of the braking torque block (35), a braking square plate (43) is installed; at the bottom of the device table (1), a braking square box (44) is also installed. One side of the braking square box (44) close to the braking torque block (35) is open and is slidably matched with the braking square plate (43); the side of the braking square box (44) far from the braking torque block (35) is closed and an air outlet valve is also installed. An air outlet pipe (45) is installed on the air outlet valve, and the air outlet pipe (45) passes through the storage cylinder (2) and is communicated with the airbag (29); on both sides of the braking square box (44), airtight valves are also provided, and the airtight valves are located between the air outlet valve and the braking square plate (43); a pressure round plate (46) is also slidably connected in the storage cylinder (2), and the top of the pressure round plate (46) is on the moving path of the bottom of the cylinder barrel; in the storage cylinder (2), a number of pressure springs (47) arranged in a ring with the storage cylinder (2) as the center are also provided. One end of the pressure spring (47) is fixedly connected to the inner bottom surface of the storage cylinder (2), and the other end is fixedly connected to the bottom of the pressure round plate (46).

9. The automatic oiling device for a shock absorber according to claim 5, characterized in that: A position-changing and distance-locking mechanism is also arranged on the auxiliary moving cross plate (23); the position-changing and distance-locking mechanism includes a positioning cylinder (48) installed on the auxiliary moving cross plate (23). A positioning long plate (49) is slidably connected to the positioning cylinder (48). On the side of the positioning long plate (49) close to the auxiliary moving cross plate (23), an auxiliary moving locking plate (50) is also installed. The auxiliary moving locking plate (50) passes through the auxiliary moving cross plate (23) and is connected to one of the auxiliary moving locking holes (27); a positioning spring (51) is also sleeved on the positioning cylinder (48). One end of the positioning spring (51) is fixedly connected to the auxiliary moving cross plate (23), and the other end is connected to an auxiliary moving limit plate (52). The auxiliary moving limit plate (52) is installed at the end of the positioning cylinder (48) far from the auxiliary moving cross plate (23).

10. An automatic oiling method for a shock absorber, using the automatic oiling device for a shock absorber as described in claim 1, characterized in that, Including the following steps: S1. Place the shock absorber to be oiled into the storage cylinder (2) and use a pneumatic tightening device to fix the shock absorber at the current position; S2. Use the rotation angle position-changing unit to clean and oil the shock absorber at different positions and heights; S3. Operate the cleaning and oiling assembly to clean the impurities adhered to the piston rod and apply lubricating oil.

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