High-speed oil cylinder

Abstract

The invention relates to the technical field of oil cylinders, in particular to a high-speed oil cylinder which comprises a cylinder barrel, a cylinder cover, a piston shell and a piston rod, the bottom of the cylinder cover is fixedly connected with the top of the cylinder barrel, the periphery of the piston shell is slidably connected with the inner wall of the cylinder barrel, the bottom of the piston rod is fixedly connected with the top of the piston shell, and the top of the piston rod penetrates through the cylinder cover and is slidably connected with the cylinder cover. The device further comprises a decontamination box, a steering assembly, a separation barrel, a quick release assembly, a solid-liquid separation assembly, a pair of oil discharge assemblies and a pair of pressure switch assemblies, the decontamination box is installed in the cylinder barrel in a horizontally rotating mode through the steering assembly, the periphery of the piston rod is sleeved with the decontamination box, and the bottom of the decontamination box is fixedly connected with the top of the piston shell. In order to eliminate cleaning dead angles of the decontamination box, the steering assembly enables the piston shell and the decontamination box to periodically rotate in the continuous up-and-down movement process of the piston shell, so that when the piston rod reciprocates, the angle of the decontamination box can be adjusted, and impurities attached to the piston rod can be collected in all directions.

Description

Technical Field

[0001] The present invention relates to the technical field of oil cylinders, and particularly to a high-speed oil cylinder. Background Art

[0002] In the modern industrial field, an oil cylinder, i.e., a hydraulic cylinder, as a hydraulic actuator that converts hydraulic energy into mechanical energy to achieve linear reciprocating motion or swinging motion, plays a key role in various mechanical devices. Its main components include a cylinder barrel, a cylinder head, a piston housing, and a piston rod. Among them, the high-speed oil cylinder, with its characteristic of being able to achieve reciprocating motion at a relatively high speed, plays an important role in many fields with strict requirements for speed and precision. Compared with ordinary oil cylinders, the high-speed oil cylinder has a significant advantage in the movement speed of the piston housing, usually reaching several meters per second or even higher, which enables it to well meet the working conditions that require rapid actions such as high-speed stamping and rapid prototyping.

[0003] However, during the working process of the high-speed oil cylinder, due to the high-temperature and high-pressure environment inside the cylinder, it is extremely easy to cause oil oxidation; at the same time, the high-speed movement of the internal components of the cylinder will also cause component wear; in addition, due to factors such as the intrusion of external pollutants after the sealing parts age, it is very easy to generate oil stains inside the oil cylinder and a large amount of them will adhere to the inner wall of the cylinder barrel. If these oil stains cannot be cleaned in time, it will have various negative impacts on the performance and service life of the high-speed oil cylinder. For example, the oil stains will accelerate the corrosion process of the oil cylinder, increase the frictional resistance between the piston housing and the inner wall of the cylinder barrel, affect the heat dissipation effect of the oil cylinder, and in severe cases, even cause phenomena such as piston housing jamming and oil leakage, resulting in the operation failure of the entire device.

[0004] To solve the problem of cleaning the oil stains inside the high-speed oil cylinder, various solutions have been proposed in the prior art. One of the solutions is to set a decontamination box near the piston housing around the piston rod, so that the decontamination box can move reciprocally in the cylinder barrel following the piston housing, scrape the oil stains adhering to the inner wall of the cylinder barrel during the movement, and is equipped with a lid that can be automatically opened and closed to prevent oil stain leakage. There is also a more in-depth solution, which separates the solid and liquid of the collected oil stains by extrusion, makes the dirt in the oil stains precipitate, and then extrudes the hydraulic oil and discharges it back into the cylinder barrel to realize the reuse of the hydraulic oil.

[0005] Although these existing solutions have alleviated the problem of cleaning oil stains inside high-speed cylinders to a certain extent, there are still some defects that need to be solved. First, the existing solutions have great difficulties in adjusting the position of the decontamination box, which inevitably leads to the existence of cleaning dead angles between the decontamination box and the inner wall of the cylinder barrel, making the decontamination effects at different positions on the inner wall of the cylinder barrel uneven, and it is difficult to achieve a comprehensive and efficient cleaning purpose. Second, after completing the solid-liquid separation, the existing solutions cannot easily discharge the remaining dirt in the decontamination box. When the high-speed cylinder has been working for a period of time, a large amount of dirt will accumulate in the decontamination box. At this time, it is necessary to remove the cylinder head and take out the piston rod to clean the inside of the decontamination box. This operation is not only cumbersome and complicated, but also frequent disassembly and assembly can easily lead to accelerated wear and aging between the cylinder parts, and also increase the risk of external contaminants invading the inside of the cylinder.

[0006] In summary, the existing technology for cleaning dirt inside high-speed oil cylinders has many deficiencies and urgently needs to be improved through innovative design. The present invention is committed to solving these existing technical problems. Through a unique structural design, the angle of the decontamination box can be flexibly adjusted, thereby effectively eliminating cleaning dead angles and significantly improving the cleaning effect. At the same time, an innovative structure is designed that can discharge precipitated dirt without removing the cylinder cover, greatly improving the cleaning efficiency and reducing maintenance costs, providing a solid guarantee for the efficient, stable and reliable operation of the high-speed oil cylinder. Summary of the invention

[0007] The purpose of the present invention is to provide a high-speed oil cylinder, which can easily adjust the angle of the decontamination box, eliminate cleaning dead corners and improve the cleaning effect, and can discharge the deposited dirt without removing the cylinder cover, thereby extending the working life of the high-speed oil cylinder.

[0008] To achieve this object, the present invention adopts the following technical solutions: A high-speed oil cylinder is provided, which includes a cylinder barrel, a cylinder head, a piston housing, and a piston rod. The bottom of the cylinder head is fixedly connected to the top of the cylinder barrel. The outer periphery of the piston housing is slidably connected to the inner wall of the cylinder barrel. The bottom of the piston rod is fixedly connected to the top of the piston housing. The top of the piston rod passes through the cylinder head and is slidably connected to it. It also includes a decontamination box, a steering assembly, a separation barrel, a quick-release assembly, a solid-liquid separation assembly, a pair of oil discharge assemblies, and a pair of pressure switch assemblies. The decontamination box is horizontally rotatably installed in the cylinder barrel through the steering assembly. The decontamination box is sleeved around the piston rod. The bottom of the decontamination box is fixedly connected to the top of the piston housing. The two ends of the decontamination box are in close contact with the inner wall of the cylinder barrel. Scraper openings are provided at both ends of the top of the decontamination box. A pair of communication grooves are provided on the side wall of the piston rod. A pair of collecting plates are fixedly connected to the inner wall of the decontamination box. The collecting plates are fan-shaped structures and are inclined. The end of the collecting plate away from the piston rod is fixedly connected to the inner wall of the decontamination box. The end of the collecting plate close to the piston rod is fixedly connected to the bottom wall of the communication groove. The separation barrel is detachably installed in the piston housing through the quick-release assembly. The solid-liquid separation assembly is installed on the piston housing. The solid-liquid separation assembly is used to drive the separation barrel to rotate horizontally. The oil discharge assemblies and the pressure switch assemblies are both installed on the piston housing. The oil discharge assemblies are used to discharge the hydraulic oil from the piston housing. The pressure switch assemblies are used to drive the cover to open and close and to drive the oil discharge assemblies to work.

[0009] Preferably, the steering assembly includes a pair of driving rings and a pair of fixing rings. The two driving rings are symmetrically distributed up and down and are respectively fixedly connected to the bottom of the piston housing and the top of the decontamination box. The driving rings are annular tooth-shaped structures. The two fixing rings are respectively fixedly connected to the bottom of the cylinder head and the bottom wall of the cylinder barrel. Annular tooth grooves are provided on the inner walls of the fixing rings. The annular tooth grooves on the two fixing rings are staggered. When the piston housing moves to the top of the cylinder barrel, the top driving ring abuts against the inner wall of the annular tooth groove, causing the piston housing to rotate counterclockwise. When the piston housing moves to the bottom of the cylinder barrel, the bottom driving ring abuts against the inner wall of the annular tooth groove, causing the piston housing to rotate counterclockwise.

[0010] Preferably, the piston rod includes a top rod, a bottom rod, and a pair of bearings. The top rod passes through the cylinder head and is slidably connected to it. The bottom of the bottom rod is coaxially connected to the top of the piston housing. The bottom of the top rod is rotatably connected to the top of the bottom rod through a bearing.

[0011] Preferably, the solid-liquid separation assembly includes a rotating seat. The bottom of the rotating seat is rotatably connected to the bottom wall of the piston housing. The inner wall of the rotating seat is inserted and matched with the bottom of the separation barrel. The separation barrel is in close contact with the inner wall of the piston rod and is slidably connected to it. The inside of the piston rod is in communication with the inside of the piston housing. The quick-release assembly includes a pair of arc-shaped blocks and a pair of springs. One end of the spring is fixedly connected to the arc-shaped block. Convex blocks are fixedly connected to both ends of the bottom of the separation barrel. A chute is provided at one end of the convex block. The chute is slidably connected to the arc-shaped block. The other end of the spring is fixedly connected to the inner wall of the chute. A pair of grooves are provided on the inner wall of the rotating seat. The grooves are inserted and matched with the convex blocks. A clamping groove is provided on the inner wall of the groove. The clamping groove is clamped and matched with one end of the arc-shaped block.

[0012] Preferably, the quick-release assembly further includes a connecting plate, a connecting rod, a connecting block, a rod head, a pair of bolts and a pair of nuts. The two ends of the connecting plate are respectively fixedly connected to the inner walls of the tops of the two ends of the separation barrel. The bottom of the connecting rod passes through the top wall of the connecting plate and is slidably connected thereto. The top of the connecting block is fixedly connected to the bottom of the connecting rod. The connecting block is of a cylindrical structure and has a long groove formed at the bottom. The inner wall of the connecting plate is fixedly connected with a U-shaped plate. The connecting block is rotatably connected to the inner wall of the U-shaped plate. The long groove is in snap-fit with the bottom of the U-shaped plate. The bottom of the rod head is inserted into the inner wall of the top rod. The top of the connecting rod is inserted into the inner wall of the bottom of the rod head. A pair of screw holes are formed at one ends of the rod head, the top rod and the connecting rod. The bolts pass through the screw holes and are threadedly connected with the nuts.

[0013] Preferably, a plurality of filter holes are formed in the side wall of the separation barrel. The solid-liquid separation assembly further includes an oil sump and a motor. The oil sump is of an annular structure and is fixedly connected to the inner wall of the piston housing. The bottom of the oil sump is rotatably connected to the periphery of the rotating seat. The top of the motor is fixedly connected to the bottom of the piston housing. The output shaft of the motor passes through the bottom wall of the piston housing and is coaxially connected to the rotating seat.

[0014] Preferably, the two oil drainage assemblies are symmetrically distributed at the two ends of the oil sump. The oil drainage assembly includes an oil drainage pipe, a push plate and a pair of one-way valves. The top of the oil drainage pipe passes through the top wall of the piston housing and the bottom wall of the decontamination box and is fixedly connected thereto. The bottom of the oil drainage pipe passes through the bottom wall of the piston housing and is fixedly connected thereto. The push plate is slidably connected to the inner wall of the oil drainage pipe. One of the one-way valves is communicated with the inside of the oil sump and the inside of the oil drainage pipe at both ends respectively. The other one-way valve is communicated with the bottom of the oil drainage pipe and the inside of the cylinder barrel at both ends respectively.

[0015] Preferably, the one-way valve includes a round pipe, a cross frame, a conical cylinder and a spherical ball. The inner wall of the round pipe is fixedly connected with the cross frame. One end of the conical cylinder is fixedly connected with the cross frame and is communicated therewith. The spherical ball is rollably connected to the inner wall of the cross frame. The inner wall of the conical cylinder is mutually attached to the periphery of the spherical ball. When the push plate rises, the one-way valve at the bottom of the oil drainage pipe is in a closed state, and the one-way valve at one end of the oil drainage pipe is in an open state. The hydraulic oil flows from the oil sump into the oil drainage pipe. When the push plate descends, the one-way valve at the bottom of the oil drainage pipe is in an open state, and the one-way valve at one end of the oil drainage pipe is in a closed state. The hydraulic oil is discharged from the bottom of the oil drainage pipe into the cylinder barrel.

[0016] Preferably, a pair of cover plates are further included. The cover plates are vertically rotatably installed on the decontamination box. The cover plates are used to control the opening and closing of the scraping port. The pressure switch assembly includes a long cylinder, a T-shaped rod, a pair of floating plates and a lifting rod. The long cylinder passes through the piston housing and the decontamination box and is fixedly connected thereto. The T-shaped rod passes through the long cylinder and is slidably connected thereto. One end of the T-shaped rod passes through the side wall of the long cylinder and is fixedly connected to the lifting rod. The bottom of the lifting rod passes through the top wall of the oil drainage pipe and is fixedly connected to the top of the push plate. The two floating plates are respectively fixedly connected to the top and the bottom of the T-shaped rod.

[0017] Preferably, a pair of rotating shafts are fixedly connected to the top wall of the decontamination box. One end of the bottom of the cover plate is rotatably connected to the periphery of the rotating shaft. A pair of torsion springs are sleeved on the periphery of the rotating shaft. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the cover plate. The top of the lifting rod passes through the collecting plate and abuts against the bottom of the cover plate.

[0018] Advantages of the present invention: 1. The steering assembly of the present invention is composed of a pair of driving rings and a pair of fixed rings. When the piston housing moves upward to the top of the cylinder barrel, the top driving ring abuts against the inner wall of the annular tooth groove on the fixed ring, causing the piston housing to rotate counterclockwise. When the piston housing moves downward to the bottom of the cylinder barrel, the bottom driving ring acts on the corresponding annular tooth groove, also causing the piston housing to rotate counterclockwise. During the continuous up and down movement of the piston housing, this steering mechanism enables the piston housing and the decontamination box to rotate periodically, so that when the piston rod reciprocates, the angle of the decontamination box can be adjusted to collect impurities attached to the piston rod in all directions.

[0019] 2. The separation barrel of the present invention is installed in the piston housing by a quick-release assembly. Through a pair of arc-shaped blocks, springs, and related bump, groove, and card slot structures, simply lifting the connecting rod can easily remove the separation barrel from the rotating seat, facilitating quick and convenient cleaning and maintenance. Conversely, it can be quickly installed, greatly improving the maintenance efficiency and reducing the maintenance cost.

[0020] 3. The pressure switch assembly of the present invention is driven by the buoyancy generated by the change in the hydraulic oil level. The rise and fall of the liquid level drive the floating plate, T-shaped rod, and lifting rod to move. The lifting rod can not only control the movement of the push plate in the drain pipe to discharge the hydraulic oil, but also control the opening and closing of the cover plate to clean the impurities. The whole process does not require an additional power source, is energy-efficient and sensitive, and can automatically adjust according to the real-time working conditions of the oil cylinder. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is the three-dimensional structure schematic diagram of the present invention.

[0023] Figure 2 is the sectional view of the cylinder barrel structure of the present invention Figure 1 .

[0024] Figure 3 is the exploded three-dimensional structure diagram of the present invention.

[0025] Figure 4 is a sectional view of the piston housing structure of the present invention Figure 1 .

[0026] Figure 5 is a sectional view of the piston housing structure of the present invention Figure 2 .

[0027] Figure 6 is a sectional view of the cylinder barrel structure of the present invention Figure 2 .

[0028] Figure 7 is an exploded view of the quick-release component structure of the present invention.

[0029] Figure 8 is Figure 4 an enlarged view of the structure at position A in

[0030] Figure 9 is a sectional view of the oil drain pipe structure of the present invention

[0031] Figure 10 is an exploded view of the check valve structure of the present invention

[0032] Figure 11 is an exploded view of the piston rod structure of the present invention

[0033] In the figure: 1. Cylinder barrel; 10. Cylinder head; 11. Piston housing; 12. Piston rod; 120. Communication groove; 121. Thumb rod; 122. Bottom rod; 123. Bearing; 2. Decontamination box; 20. Scraping port; 200. Rotating shaft; 201. Torsion spring; 21. Cover plate; 22. Collection plate; 23. Steering assembly; 230. Driving ring; 231. Fixed ring; 232. Ring-shaped tooth groove; 3. Separation barrel; 30. Filter hole; 300. Protrusion; 301. Chute; 31. Quick-release component; 310. Arc-shaped clamping block; 311. Spring; 312. Connecting plate; 313. U-shaped plate; 314. Connecting rod; 315. Connecting block; 3150. Long groove; 316. Rod head; 3160. Screw hole; 317. Bolt; 318. Nut; 4. Solid-liquid separation component; 40. Rotating seat; 400. Groove; 401. Card slot; 41. Oil storage; 42. Motor; 5. Oil drainage component; 50. Oil drain pipe; 51. Pushing plate; 52. Check valve; 520. Round pipe; 521. Cross frame; 522. Conical cylinder; 523. Sphere; 6. Pressure switch component; 60. Long cylinder; 61. T-shaped rod; 62. Floating plate; 63. Lifting rod. Detailed implementation manners

[0034] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0035] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0036] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] In the description of the present invention, unless otherwise clearly specified and defined, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] As Figures 1 to 11 shown: A high-speed oil cylinder, comprising a cylinder barrel 1, a cylinder head 10, a piston housing 11 and a piston rod 12. The bottom of the cylinder head 10 is fixedly connected to the top of the cylinder barrel 1. The outer periphery of the piston housing 11 is slidably connected to the inner wall of the cylinder barrel 1. The bottom of the piston rod 12 is fixedly connected to the top of the piston housing 11. The top of the piston rod 12 passes through the cylinder head 10 and is slidably connected thereto. It further includes a decontamination box 2, a steering assembly 23, a separation barrel 3, a quick-release assembly 31, a solid-liquid separation assembly 4, a pair of oil discharge assemblies 5 and a pair of pressure switch assemblies 6. The decontamination box 2 is horizontally rotatably installed in the cylinder barrel 1 through the steering assembly 23. The decontamination box 2 is sleeved around the outer periphery of the piston rod 12. The bottom of the decontamination box 2 is fixedly connected to the top of the piston housing 11. The two ends of the decontamination box 2 are in mutual contact with the inner wall of the cylinder barrel 1. Both ends of the top of the decontamination box 2 are provided with scraping openings 20. A pair of communication grooves 120 are provided on the side wall of the piston rod 12. A pair of collecting plates 22 are fixedly connected to the inner wall of the decontamination box 2. The collecting plates 22 are of a fan-shaped structure and are inclined. The end of the collecting plate 22 away from the piston rod 12 is fixedly connected to the inner wall of the decontamination box 2. The end of the collecting plate 22 close to the piston rod 12 is fixedly connected to the bottom wall of the communication groove 120. The separation barrel 3 is detachably installed in the piston housing 11 through the quick-release assembly 31. The solid-liquid separation assembly 4 is installed on the piston housing 11. The solid-liquid separation assembly 4 is used to drive the separation barrel 3 to rotate horizontally. The oil discharge assemblies 5 and the pressure switch assemblies 6 are both installed on the piston housing 11. The oil discharge assembly 5 is used to discharge the hydraulic oil from the piston housing 11. The pressure switch assembly 6 is used to drive the cover plate 21 to open and close and to drive the oil discharge assembly 5 to work.

[0039] The separation barrel 3 is installed inside the piston housing 11 through the quick-release component 31. When the telescopic end of the high-speed oil cylinder extends, the oil pressure at the bottom of the piston housing 11 inside the cylinder barrel 1 is greater than the oil pressure at the top of the piston housing 11, pushing the piston housing 11 and the piston rod 12 upward. At the same time, the pressure switch component 6 drives the cover plate 21 to open upward, enabling the dirt scraping port 20 to open. As the piston housing 11 rises, the decontamination box 2 moves synchronously with the piston housing 11, and scrapes the oil stains attached to the inner wall of the cylinder barrel 1 into the decontamination box 2 through the dirt scraping port 20 and flows along the collection plate 22 into the communication groove 120, and finally falls into the separation barrel 3. Subsequently, the solid-liquid separation component 4 drives the separation barrel 3 to rotate at high speed, and uses centrifugal force to filter the hydraulic oil in the oil stains from the filter holes 30, separating it from the dirt. Then, during the downward movement of the piston housing 11, the cover plate 21 is driven to close by the pressure switch component 6 to prevent oil stain leakage, and the oil discharge component 5 is driven to discharge the separated hydraulic oil from the piston housing 11 for the purpose of reuse. As the piston housing 11 reciprocates up and down, when the piston housing 11 rises to the top of the cylinder barrel 1 and descends to the bottom of the cylinder barrel 1, the piston housing 11 together with the decontamination box 2 will be rotated counterclockwise by a certain angle through the provided steering component 23. Thus, during the multiple reciprocating movements of the piston housing 11, the inner wall of the cylinder barrel 1 is cleaned without dead angles. Finally, after the high-speed oil cylinder works, the separation barrel 3 together with the dirt inside it is taken out of the piston housing 11 through the quick-release component 31, facilitating the cleaning of the separation barrel 3.

[0040] As Figures 1 to 11 shown: The steering component 23 includes a pair of driving rings 230 and a pair of fixing rings 231. The two driving rings 230 are symmetrically distributed up and down and are respectively fixedly connected to the bottom of the piston housing 11 and the top of the decontamination box 2. The driving ring 230 is of an annular toothed structure. The two fixing rings 231 are respectively fixedly connected to the bottom of the cylinder head 10 and the bottom wall of the cylinder barrel 1. The inner wall of the fixing ring 231 is provided with an annular toothed groove 232. The annular toothed grooves 232 on the two fixing rings 231 are staggered with each other. When the piston housing 11 moves to the top of the cylinder barrel 1, the top driving ring 230 abuts against the inner wall of the annular toothed groove 232, causing the piston housing 11 to rotate counterclockwise. When the piston housing 11 moves to the bottom of the cylinder barrel 1, the bottom driving ring 230 abuts against the inner wall of the annular toothed groove 232, causing the piston housing 11 to rotate counterclockwise.

[0041] The piston rod 12 includes a top rod 121, a bottom rod 122 and a pair of bearings 123. The top rod 121 passes through the cylinder head 10 and is slidably connected thereto. The bottom of the bottom rod 122 is coaxially connected to the top of the piston housing 11. The bottom of the top rod 121 is rotatably connected to the top of the bottom rod 122 through the bearing 123.

[0042] When the piston housing 11 moves to the top and bottom of the cylinder barrel 1, the driving ring 230 fixed thereon will insert into the fixed ring 231. Since the driving ring 230 has an annular toothed structure, as the piston housing 11 continues to move, the toothed structure on the driving ring 230 abuts against the inner wall of the annular tooth groove 232 on the fixed ring 231 and pushes the driving ring 230 to rotate, thereby driving the decontamination box 2, the piston housing 11, and the bottom rod 122 to rotate simultaneously. The top of the top rod 121 can be connected to the mechanical component driven by the high-speed oil cylinder through screws. The top rod 121 and the bottom rod 122 are connected by a bearing 123 to achieve a stable rotation effect, while ensuring a stable connection between the top rod 121 and the mechanical component. Moreover, the positions of the two fixed rings 231 located at the top and bottom of the cylinder barrel 1 are not completely symmetrical, but the annular tooth grooves 232 inside them are arranged in an interlaced manner. As the piston housing 11 moves up and down, the special component continuously pushes the piston housing 11 to rotate counterclockwise to adjust the angle of the decontamination box 2, thereby achieving the effect of cleaning the inner wall of the cylinder barrel 1 without dead angles.

[0043] As Figures 1 to 11 shown: The solid-liquid separation component 4 includes a rotating seat 40. The bottom of the rotating seat 40 is rotatably connected to the bottom wall of the piston housing 11. The inner wall of the rotating seat 40 is inserted and matched with the bottom of the separation barrel 3. The separation barrel 3 is in mutual fit with and slidably connected to the inner wall of the piston rod 12. The inside of the piston rod 12 is in mutual communication with the inside of the piston housing 11. The quick-release component 31 includes a pair of arc-shaped blocks 310 and a pair of springs 311. One end of the spring 311 is fixedly connected to the arc-shaped block 310. Both ends of the bottom of the separation barrel 3 are fixedly connected with convex blocks 300. One end of the convex block 300 is provided with a chute 301. The chute 301 is slidably connected to the arc-shaped block 310. The other end of the spring 311 is fixedly connected to the inner wall of the chute 301. A pair of grooves 400 are provided on the inner wall of the rotating seat 40. The grooves 400 are inserted and matched with the convex blocks 300. A clamping groove 401 is provided on the inner wall of the groove 400. The clamping groove 401 is clamped and matched with one end of the arc-shaped block 310.

[0044] The quick-release assembly 31 further includes a connecting plate 312, a connecting rod 314, a connecting block 315, a rod head 316, a pair of bolts 317 and a pair of nuts 318. The two ends of the connecting plate 312 are respectively fixedly connected to the inner walls of the tops of the two ends of the separation barrel 3. The bottom of the connecting rod 314 passes through the top wall of the connecting plate 312 and is slidably connected thereto. The top of the connecting block 315 is fixedly connected to the bottom of the connecting rod 314. The connecting block 315 is of a cylindrical structure and a long groove 3150 is formed at the bottom. A U-shaped plate 313 is fixedly connected to the inner wall of the connecting plate 312. The connecting block 315 is rotatably connected to the inner wall of the U-shaped plate 313. The long groove 3150 is in snap-fit connection with the bottom of the U-shaped plate 313. The bottom of the rod head 316 is in plug-in fit with the inner wall of the top of the ejector rod 121. The top of the connecting rod 314 is in plug-in fit with the inner wall of the bottom of the rod head 316. A pair of screw holes 3160 are formed at one end of the rod head 316, the ejector rod 121 and the connecting rod 314. The bolts 317 pass through the screw holes 3160 and are threadedly connected to the nuts 318.

[0045] When installing the separation barrel 3, insert the separation barrel 3 from the top of the piston rod 12, and push the connecting rod 314 to move the separation barrel 3 along the piston rod 12 into the piston housing 11. At this time, the long groove 3150 at the bottom of the connecting block 315 is in snap-fit connection with the bottom of the U-shaped plate 313. After the separation barrel 3 drops to the bottom of the piston housing 11, rotate the connecting rod 314 to drive the connecting plate 312 and the separation barrel 3 to rotate through the connecting block 315, so that the convex block 300 at the bottom of the separation barrel 3 is aligned with the groove 400 on the rotating seat 40. Then press down the connecting rod 314 to insert the separation barrel 3 into the rotating seat 40. The arc-shaped clamping block 310 is squeezed by the inner wall of the groove 400 and slides into the sliding groove 301 and compresses the spring 311. Then the spring 311 rebounds to push one end of the arc-shaped clamping block 310 into the clamping groove 401, thereby connecting the separation barrel 3 and the rotating seat 40 to each other, enabling the rotating seat 40 to drive the separation barrel 3 to rotate. Then lift the connecting rod 314 upward to insert it into the rod head 316, and at the same time insert the rod head 316 into the ejector rod 121 to align the screw holes 3160 on the three of them. Finally, insert the bolts 317 into the screw holes 3160 and thread them with the nuts 318 to complete the installation. At this time, the connecting block 315 is located between the connecting plate 312 and the U-shaped plate 313 and can rotate freely, so that the connecting rod 314 and the separation barrel 3 can rotate relative to each other, ensuring the stable rotation of the separation barrel 3. On the contrary, remove the rod head 316 and lift the connecting rod 314 forcefully, then the separation barrel 3 can be taken out of the piston housing 11 without removing the cylinder head 10, which not only simplifies the operation, improves the convenience, but also prevents wear and pollutant entry caused by frequent disassembly and assembly, and prolongs the service life of the oil cylinder.

[0046] As Figures 1 to 10 shown: A plurality of filter holes 30 are formed in the side wall of the separation barrel 3. The solid-liquid separation component 4 further includes an oil sump 41 and a motor 42. The oil sump 41 is of an annular structure and is fixedly connected to the inner wall of the piston housing 11. The bottom of the oil sump 41 is rotatably connected to the periphery of the rotating seat 40. The top of the motor 42 is fixedly connected to the bottom of the piston housing 11. The output shaft of the motor 42 passes through the bottom wall of the piston housing 11 and is coaxially connected to the rotating seat 40.

[0047] Two oil discharge components 5 are symmetrically distributed at both ends of the oil sump 41. The oil discharge component 5 includes an oil discharge pipe 50, a push plate 51 and a pair of one-way valves 52. The top of the oil discharge pipe 50 passes through the top wall of the piston housing 11 and the bottom wall of the decontamination box 2 and is fixedly connected thereto. The bottom of the oil discharge pipe 50 passes through the bottom wall of the piston housing 11 and is fixedly connected thereto. The push plate 51 is slidably connected to the inner wall of the oil discharge pipe 50. One of the one-way valves 52 is communicated with the inside of the oil sump 41 and the inside of the oil discharge pipe 50 at both ends respectively. The other one-way valve 52 is communicated with the bottom of the oil discharge pipe 50 and the inside of the cylinder barrel 1 at both ends respectively.

[0048] The one-way valve 52 includes a round pipe 520, a cross frame 521, a conical cylinder 522 and a spherical ball 523. The inner wall of the round pipe 520 is fixedly connected to the cross frame 521. One end of the conical cylinder 522 is fixedly connected to the cross frame 521 and is communicated therewith. The spherical ball 523 is rollingly connected to the inner wall of the cross frame 521. The inner wall of the conical cylinder 522 is mutually attached to the periphery of the spherical ball 523. When the push plate 51 rises, the one-way valve 52 at the bottom of the oil discharge pipe 50 is in a closed state, and the one-way valve 52 at one end of the oil discharge pipe 50 is in an open state. The hydraulic oil flows from the oil sump 41 into the oil discharge pipe 50. When the push plate 51 descends, the one-way valve 52 at the bottom of the oil discharge pipe 50 is in an open state, and the one-way valve 52 at one end of the oil discharge pipe 50 is in a closed state. The hydraulic oil is discharged from the bottom of the oil discharge pipe 50 into the cylinder barrel 1.

[0049] Energize the motor 42 to make it work. The output shaft thereof drives the rotating seat 40 to rotate, and at the same time drives the separation barrel 3 to rotate at a high speed. The centrifugal force is used to throw out the oil stains in the separation barrel 3, and the hydraulic oil in the oil stains is filtered out through the filter holes 30 on the separation barrel 3. The dirt remains in the separation barrel 3 waiting to be cleaned. After the hydraulic oil flows out of the separation barrel 3, it enters the oil sump 41. When the piston housing 11 rises, the pressure switch assembly 6 drives the push plate 51 to slide upward in the drain pipe 50. At this time, the one-way valve 52 at the bottom of the drain pipe 50 is in the closed state, while the one-way valve 52 between the drain pipe 50 and the oil sump 41 is in the open state, so as to pump the hydraulic oil in the oil sump 41 into the drain pipe 50. Subsequently, when the piston housing 11 descends, the pressure switch assembly 6 drives the push plate 51 to slide downward in the drain pipe 50. At this time, the one-way valve 52 at the bottom of the drain pipe 50 is in the open state, while the one-way valve 52 between the drain pipe 50 and the oil sump 41 is in the closed state, so as to extrude the hydraulic oil in the drain pipe 50 through the push plate 51 and make it re-enter the cylinder barrel 1 for repeated use. A spherical ball 523 is arranged in the round tube 520 of the one-way valve 52. The spherical ball 523 can roll in the round tube 520 following the flow direction of the hydraulic oil. Cross-shaped frames 521 and conical cylinders 522 are respectively arranged at both ends thereof. When the hydraulic oil flows to one end of the cross-shaped frame 521, the spherical ball 523 abuts against the cross-shaped frame 521, and the hydraulic oil passes through smoothly, thus opening the one-way valve 52. When the hydraulic oil flows to one end of the conical cylinder 522, the spherical ball 523 abuts against the inner wall of the conical cylinder 522, and the hydraulic oil cannot flow through, thus closing the one-way valve 52. And the directions of the two one-way valves 52 are set so that the hydraulic oil can only flow from the oil sump 41 to the outside of the piston housing 11, thereby preventing the occurrence of backflow phenomenon.

[0050] As Figures 1 to 9 shown: It further includes a pair of cover plates 21. The cover plates 21 are vertically rotatably installed on the decontamination box 2. The cover plates 21 are used to control the opening and closing of the scraping port 20. The pressure switch assembly 6 includes a long tube 60, a T-shaped rod 61, a pair of floating plates 62 and a lifting rod 63. The long tube 60 passes through the piston housing 11 and the decontamination box 2 and is fixedly connected thereto. The T-shaped rod 61 passes through the long tube 60 and is slidably connected thereto. One end of the T-shaped rod 61 passes through the side wall of the long tube 60 and is fixedly connected to the lifting rod 63. The bottom of the lifting rod 63 passes through the top wall of the drain pipe 50 and is fixedly connected to the top of the push plate 51. The two floating plates 62 are respectively fixedly connected to the top and bottom of the T-shaped rod 61.

[0051] A pair of rotating shafts 200 are fixedly connected to the top wall of the decontamination box 2. One end of the bottom of the cover plate 21 is rotatably connected to the periphery of the rotating shaft 200. A pair of torsion springs 201 are sleeved on the periphery of the rotating shaft 200. One end of the torsion spring 201 is fixedly connected to the rotating shaft 200, and the other end of the torsion spring 201 is fixedly connected to the cover plate 21. The top of the lifting rod 63 passes through the collecting plate 22 and abuts against the bottom of the cover plate 21.

[0052] When the piston housing 11 rises, the oil pressure at the bottom of the piston housing 11 is higher than that at the top thereof, so that the pressure received by the floating plate 62 at the top of the piston housing 11 is less than the pressure received by the floating plate 62 at the bottom of the piston housing 11. As a result, the T-shaped rod 61 moves upward together with the floating plate 62, and at the same time drives the lifting rod 63 to move upward. The bottom of the lifting rod 63 drives the push plate 51 to slide upward, sucking the hydraulic oil in the oil sump 41 into the drain pipe 50. The top of the lifting rod 63 pushes the cover plate 21 upward, overcoming the resistance of the torsion spring 201, so that the cover plate 21 rotates upward around the rotating shaft 200 to open the dirt scraping port 20, thereby cleaning the oil stain on the inner wall of the cylinder barrel 1. On the contrary, when the piston housing 11 descends, the T-shaped rod 61 slides down along the long cylinder 60, driving the lifting rod 63 to descend, pushing the drain pipe 50 to discharge the hydraulic oil, and closing the cover plate 21 again under the resilience of the torsion spring 201 to prevent the oil stain inside the piston housing 11 from flowing back.

[0053] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of clearly describing the positional relationship and functions between various components.

Claims

1. A high-speed oil cylinder, comprising a cylinder barrel (1), a cylinder head (10), a piston housing (11) and a piston rod (12), wherein the bottom of the cylinder head (10) is fixedly connected to the top of the cylinder barrel (1), the outer periphery of the piston housing (11) is slidably connected to the inner wall of the cylinder barrel (1), the bottom of the piston rod (12) is fixedly connected to the top of the piston housing (11), and the top of the piston rod (12) passes through the cylinder head (10) and is slidably connected thereto, characterized in that: The cleaning device also comprises a decontamination box (2), a steering assembly (23), a separation barrel (3), a quick-release assembly (31), a solid-liquid separation assembly (4), a pair of oil discharge assemblies (5) and a pair of pressure switch assemblies (6). The decontamination box (2) is installed in the cylinder barrel (1) in a horizontally rotatable manner through the steering assembly (23). The decontamination box (2) is sleeved on the periphery of the piston rod (12). The bottom of the decontamination box (2) is fixedly connected to the top of the piston housing (11). The two ends of the decontamination box (2) are in contact with the inner wall of the cylinder barrel (1). The two ends of the top of the decontamination box (2) are provided with scraping openings (20). The side wall of the piston rod (12) is provided with a pair of connecting grooves (120). The inner wall of the decontamination box (2) is fixedly connected to a pair of collecting plates (22). The collecting plates (22) are fan-shaped structures. The collecting plate (22) is arranged obliquely, one end of the collecting plate (22) away from the piston rod (12) is fixedly connected to the inner wall of the decontamination box (2), and one end of the collecting plate (22) close to the piston rod (12) is fixedly connected to the bottom wall of the connecting groove (120). The separation barrel (3) is detachably installed in the piston housing (11) through a quick-release assembly (31). The solid-liquid separation assembly (4) is installed on the piston housing (11). The solid-liquid separation assembly (4) is used to drive the separation barrel (3) to rotate horizontally. The oil discharge assembly (5) and the pressure switch assembly (6) are both installed on the piston housing (11). The oil discharge assembly (5) is used to discharge hydraulic oil from the piston housing (11). The pressure switch assembly (6) is used to drive the cover plate (21) to open and close and drive the oil discharge assembly (5) to work.

2. A high-speed oil cylinder according to claim 1, characterized in that: The steering assembly (23) comprises a pair of driving rings (230) and a pair of fixing rings (231); the two driving rings (230) are symmetrically distributed up and down and are fixedly connected to the bottom of the piston housing (11) and the top of the decontamination box (2) respectively; the driving rings (230) are annular tooth structures; the two fixing rings (231) are fixedly connected to the bottom of the cylinder head (10) and the bottom wall of the cylinder barrel (1) respectively; the inner walls of the fixing rings (231) are provided with ring-mounted tooth grooves (232); and the ring-mounted tooth grooves (232) on the two fixing rings (231) are staggered with each other; When the piston housing (11) moves to the top of the cylinder barrel (1), the driving ring (230) at the top and the inner wall of the ring-mounted tooth groove (232) contact each other, causing the piston housing (11) to rotate counterclockwise; When the piston housing (11) moves to the bottom of the cylinder barrel (1), the driving ring (230) at the bottom and the inner wall of the ring-mounted tooth groove (232) contact each other, causing the piston housing (11) to rotate counterclockwise.

3. A high-speed oil cylinder according to claim 2, characterized in that: The piston rod (12) comprises a top rod (121), a bottom rod (122) and a pair of bearings (123); the top rod (121) passes through the cylinder head (10) and is slidably connected thereto; the bottom of the bottom rod (122) is coaxially connected to the top of the piston housing (11); and the bottom of the top rod (121) is rotatably connected to the top of the bottom rod (122) via the bearings (123).

4. A high-speed oil cylinder according to claim 1, characterized in that: The solid-liquid separation component (4) comprises a rotating seat (40), the bottom of the rotating seat (40) is rotatably connected to the bottom wall of the piston housing (11), the inner wall of the rotating seat (40) is plugged into the bottom of the separation barrel (3), the separation barrel (3) and the inner wall of the piston rod (12) are mutually fitted and slidably connected, the interior of the piston rod (12) and the interior of the piston housing (11) are mutually connected, and the quick-release component (31) comprises a pair of arc-shaped blocks (310) and a pair of springs (311), one end of the spring (311) is fixedly connected to the arc-shaped block (310), Both ends of the bottom of the separation barrel (3) are fixedly connected with a protrusion (300), one end of the protrusion (300) is provided with a slide groove (301), the slide groove (301) is slidably connected to the arc-shaped clamping block (310), the other end of the spring (311) is fixedly connected to the inner wall of the slide groove (301), the inner wall of the rotating seat (40) is provided with a pair of grooves (400), the grooves (400) are plug-fitted with the protrusion (300), the inner wall of the groove (400) is provided with a clamping groove (401), and the clamping groove (401) is clamped and matched with one end of the arc-shaped clamping block (310).

5. A high-speed oil cylinder according to claim 4, characterized in that: The quick-release assembly (31) further comprises a connecting plate (312), a connecting rod (314), a connecting block (315), a rod head (316), a pair of bolts (317) and a pair of nuts (318). The two ends of the connecting plate (312) are respectively fixedly connected to the inner walls of the tops of the two ends of the separation barrel (3). The bottom of the connecting rod (314) passes through the top wall of the connecting plate (312) and is slidably connected thereto. The top of the connecting block (315) is fixedly connected to the bottom of the connecting rod (314). The connecting block (315) is a cylindrical structure with a long groove (3150) formed at the bottom. The connecting plate (312) The inner wall is fixedly connected to a U-shaped plate (313); the connecting block (315) is rotatably connected to the inner wall of the U-shaped plate (313); the long groove (3150) is snap-fitted with the bottom of the U-shaped plate (313); the bottom of the rod head (316) is plug-fitted with the inner wall of the top of the push rod (121); the top of the connecting rod (314) is plug-fitted with the inner wall of the bottom of the rod head (316); the rod head (316), the push rod (121) and one end of the connecting rod (314) are each provided with a pair of screw holes (3160); the bolts (317) pass through the screw holes (3160) and are threadedly connected to the nuts (318).

6. A high-speed oil cylinder according to claim 4, characterized in that: The side wall of the separation barrel (3) is provided with a plurality of filter holes (30). The solid-liquid separation component (4) further comprises an oil bin (41) and a motor (42). The oil bin (41) is an annular structure and is fixedly connected to the inner wall of the piston housing (11). The bottom of the oil bin (41) is rotatably connected to the periphery of the rotating seat (40). The top of the motor (42) is fixedly connected to the bottom of the piston housing (11). The output shaft of the motor (42) passes through the bottom wall of the piston housing (11) and is coaxially connected to the rotating seat (40).

7. A high-speed oil cylinder according to claim 6, characterized in that: Two oil drain assemblies (5) are symmetrically distributed at both ends of the oil bin (41). The oil drain assemblies (5) include an oil drain pipe (50), a push plate (51) and a pair of one-way valves (52). The top of the oil drain pipe (50) passes through the top wall of the piston housing (11) and the bottom wall of the decontamination box (2) and is fixedly connected thereto. The bottom of the oil drain pipe (50) passes through the bottom wall of the piston housing (11) and is fixedly connected thereto. The push plate (51) is slidably connected to the inner wall of the oil drain pipe (50). Two ends of one of the one-way valves (52) are respectively connected to the interior of the oil bin (41) and the interior of the oil drain pipe (50), and two ends of the other one-way valve (52) are respectively connected to the bottom of the oil drain pipe (50) and the interior of the cylinder barrel (1).

8. A high-speed oil cylinder according to claim 7, characterized in that: The one-way valve (52) comprises a circular tube (520), a cross frame (521), a conical tube (522) and a sphere (523); the inner wall of the circular tube (520) is fixedly connected to the cross frame (521); one end of the conical tube (522) is fixedly connected to the cross frame (521) and communicates with each other; the sphere (523) is rollingly connected to the inner wall of the cross frame (521); and the inner wall of the conical tube (522) and the outer periphery of the sphere (523) are in contact with each other; When the push plate (51) rises, the one-way valve (52) at the bottom of the oil discharge pipe (50) is in a closed state, and the one-way valve (52) at one end of the oil discharge pipe (50) is in an open state, and the hydraulic oil flows from the oil tank (41) to the oil discharge pipe (50); When the push plate (51) descends, the one-way valve (52) at the bottom of the oil discharge pipe (50) is in an open state, the one-way valve (52) at one end of the oil discharge pipe (50) is in a closed state, and the hydraulic oil is discharged from the bottom of the oil discharge pipe (50) into the cylinder barrel (1).

9. A high-speed oil cylinder according to claim 7, characterized in that: The utility model also comprises a pair of cover plates (21), the cover plates (21) being mounted on the decontamination box (2) in a vertically rotatable manner, the cover plates (21) being used to control the opening and closing of the decontamination scraping port (20), the pressure switch assembly (6) comprising a long cylinder (60), a T-shaped rod (61), a pair of floating plates (62) and a lifting rod (63), the long cylinder (60) passing through the piston housing (11) and the decontamination box (2) and being fixedly connected thereto, the T-shaped rod (61) passing through the long cylinder (60) and being slidably connected thereto, one end of the T-shaped rod (61) passing through the side wall of the long cylinder (60) and being fixedly connected to the lifting rod (63), the bottom of the lifting rod (63) passing through the top wall of the oil discharge pipe (50) and being fixedly connected to the top of the push plate (51), and the two floating plates (62) being fixedly connected to the top and bottom of the T-shaped rod (61) respectively.

10. A high-speed oil cylinder according to claim 9, characterized in that: A pair of rotating shafts (200) are fixedly connected to the top wall of the decontamination box (2), one end of the bottom of the cover plate (21) is rotatably connected to the periphery of the rotating shaft (200), a pair of torsion springs (201) are sleeved on the periphery of the rotating shaft (200), one end of the torsion spring (201) is fixedly connected to the rotating shaft (200), and the other end of the torsion spring (201) is fixedly connected to the cover plate (21), and the top of the lifting rod (63) passes through the collecting plate (22) and contacts the bottom of the cover plate (21).

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