A hydraulic cylinder cleaning device
By designing a hydraulic cylinder inner wall cleaning device that adapts to different cylinder diameters, and utilizing the linkage between clamping components and lifting frames, combined with spraying and rotation cleaning, the problem of existing equipment being unable to adapt to different cylinder diameters is solved, achieving rapid and thorough cleaning of the cylinder inner wall.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGYAN JUNSHENG MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-07
AI Technical Summary
The cleaning components of existing hydraulic cylinder inner wall cleaning equipment are of fixed size and cannot adapt to different cylinder diameters, resulting in incomplete cleaning.
A cleaning device was designed, comprising a support frame, an electric push rod, a water tank, a cleaning tray, a cleaning cylinder, a drive motor, a lead screw, a lifting frame, a connecting plate, a scraper, and a sponge block. Through the cooperation of the clamping assembly and the lifting frame, it can adapt to different cylinder diameters, achieve contact between the scraper and the sponge block and the inner wall of the cylinder, and combine spraying and rotation cleaning. The clamping plate position is automatically adjusted to ensure thorough cleaning.
It enables rapid and thorough cleaning of the inner walls of cylinders with different diameters, improving cleaning efficiency and effectiveness, and ensuring the comprehensiveness and safety of cleaning.
Smart Images

Figure CN224463373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cylinder inner wall cleaning technology, and in particular to a hydraulic cylinder inner wall cleaning device. Background Technology
[0002] The cylinder barrel of a hydraulic cylinder is an important component of a hydraulic system. It is a cylindrical container used to hold hydraulic oil and components such as pistons. When hydraulic oil is pumped into or out of the cylinder, it pushes the piston to move inside the cylinder barrel, thereby realizing the conversion of mechanical motion. Regularly cleaning the inner wall of the hydraulic cylinder barrel is one of the important measures to ensure the normal operation of the hydraulic system and extend the service life of the equipment.
[0003] Patent CN217569997U discloses an automatic cleaning device for hydraulic cylinder bodies. It includes a mounting frame and a base. The mounting frame is fixed to the base, and a fixing seat is installed on the inner side of the top plate of the mounting frame. A groove is formed on the lower end face of the fixing seat, and a cylinder clamping assembly is installed in the groove to clamp and fix the hydraulic cylinder body. A rotating spray assembly is also installed on the bottom plate of the mounting frame. When using this patent for cylinder cleaning, the hydraulic cylinder body is fitted outside the rotating shaft. During cleaning, a water pump is controlled to operate, drawing water from the water tank into the spray pipe and then spraying it from the spray holes on the outer wall of the rotating shaft to the inner wall of the hydraulic cylinder body. Simultaneously, a servo motor is activated, driving the brush assembly to rotate and clean the inner wall of the hydraulic cylinder body. However, the cleaning components in the aforementioned prior art are of a fixed size, meaning they can only clean cylinders of that size. When cleaning smaller cylinders, it may not be able to enter and contact all areas inside the cylinder. When cleaning larger cylinders, it may not be able to cover the entire inner wall surface, resulting in incomplete cleaning.
[0004] Therefore, there is a need for a hydraulic cylinder inner wall cleaning device capable of cleaning cylinders of different diameters. Utility Model Content
[0005] The purpose of this invention is to provide a hydraulic cylinder inner wall cleaning device that can clean cylinders of different diameters, in order to solve the shortcomings of existing patents where the cleaning components are of a fixed size, which can only clean cylinders of the corresponding size. When cleaning smaller cylinders, it is impossible to enter and contact all areas inside the cylinder, and when cleaning larger cylinders, it is impossible to cover the entire inner wall surface, resulting in incomplete cleaning.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] A hydraulic cylinder barrel inner wall cleaning device includes a support frame, on which an electric push rod, a water tank and a cleaning plate are installed sequentially from left to right;
[0008] The output shaft at the top of the electric push rod is equipped with a lifting plate extending to the right. A cleaning cylinder is rotatably connected to the lower right end of the lifting plate, so that the cleaning cylinder is suspended above the cleaning tray. A water pump is installed on the water tank, and a corrugated pipe is connected to the water pump. A U-shaped connecting pipe is provided above the lifting plate. Both ends of the connecting pipe pass downward through the lifting plate, and the left end of the connecting pipe is connected to the corrugated pipe, while the right end of the connecting pipe is connected to the cleaning cylinder. Multiple nozzles are arranged around the outer periphery of the cleaning cylinder.
[0009] It also includes a drive motor, lead screw, lifting frame, connecting plate, telescopic rod, hinge rod, scraper and sponge block;
[0010] A drive motor is installed on the side wall of the cleaning cylinder. A lead screw extending in the vertical direction is connected to the output shaft at the bottom of the drive motor via a coupling. A lifting frame is threaded onto the lead screw. The bottom of the lifting frame is provided with a collar fitted onto the side wall of the cleaning cylinder. Four hinge rods are hinged to the collar. A vertically arranged connecting plate is hinged to the bottom of each hinge rod. Scrapers and sponge blocks are alternately connected to the outer surfaces of the four connecting plates. A telescopic rod is connected between the bottom of the connecting plate and the cleaning cylinder.
[0011] The cleaning disc is slidably connected to a clamping assembly for fixing the cylinder.
[0012] Compared with the prior art, the advantages of this utility model are:
[0013] 1. This utility model, through the cooperation of the clamping component and the lifting frame on the cleaning cylinder, can adapt to cylinders of different diameters, so that the scraper and sponge block on the connecting plate can contact the inner wall of the cylinder through the linkage with the lifting frame, and quickly clean the inner wall of the cylinder of different diameters.
[0014] 2. By starting the motor, the output shaft of the motor drives the transmission gear to rotate. The transmission gear meshes with the driven gear, causing the driven gear to drive the rotating shaft and the push disk to rotate. As the push disk rotates, it squeezes the sliding block to move. The movement of the sliding block drives the clamping plate to move, thereby automatically adjusting the position of the clamping plate, thus achieving automatic clamping and automatic release, and speeding up work efficiency.
[0015] 3. The clamping plate moves the indicator rod on the scale plate, which can intuitively display the position change of the clamping plate and ensure that cylinders of different sizes are clamped correctly and safely. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram showing the support frame, clamping plate, and lifting plate configuration of an embodiment of this utility model.
[0018] Figure 3 This is a schematic diagram showing the arrangement of the gear ring, servo motor, and spur gear in an embodiment of this utility model.
[0019] Figure 4 This is a schematic diagram showing the arrangement of the cleaning cylinder, nozzle, and drive motor in an embodiment of this utility model.
[0020] Figure 5 This is a schematic diagram illustrating the scale plate, indicator rod, and protective pad configuration of an embodiment of this utility model.
[0021] Figure 6 This is a schematic diagram showing the arrangement of the indicator rod, sliding block, and rotating plate in an embodiment of this utility model.
[0022] Figure 7 This is a schematic diagram showing the driven gear, motor, and transmission gear configuration of an embodiment of this utility model.
[0023] Labeling Explanation: 1-Support frame, 2-Clamping plate, 3-Lifting plate, 4-Electric push rod, 5-Cleaning cylinder, 6-Spray head, 7-Drive motor, 8-Screw screw, 9-Lifting frame, 10-Connecting plate, 11-Telescopic rod, 12-Hinged rod, 13-Scraper, 14-Sponge block, 15-Water tank, 16-Water pump, 17-Corrugated pipe, 18-Connecting pipe, 19-Gear ring, 20-Servo motor, 21-Spur gear, 22-Scale plate, 23-Indicator rod, 24-Sliding block, 25-Rotating shaft, 26-Rotating plate, 27-Driven gear, 28-Motor, 29-Transmission gear, 30-Protective shell, 31-Protective pad, 32-Observation plate. Detailed Implementation
[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:
[0025] like Figures 1-6 As shown, a hydraulic cylinder barrel inner wall cleaning device includes a support frame 1, on which an electric push rod 4, a water tank 15 and a cleaning plate are installed sequentially from left to right.
[0026] The output shaft at the top of the electric push rod 4 is equipped with a lifting plate 3 extending to the right. A cleaning cylinder 5 is rotatably connected to the lower right side of the lifting plate 3, so that the cleaning cylinder 5 is suspended above the cleaning tray. A water pump 16 is installed on the water tank 15, and a corrugated pipe 17 is connected to the water pump 16. A U-shaped connecting pipe 18 is provided above the lifting plate 3. Both ends of the connecting pipe 18 penetrate downward through the lifting plate 3, and the left end of the connecting pipe 18 is connected to the corrugated pipe 17, and the right end of the connecting pipe 18 is connected to the cleaning cylinder 5. Multiple nozzles 6 are arranged around the outer periphery of the cleaning cylinder 5.
[0027] It also includes a drive motor 7, a lead screw 8, a lifting frame 9, a connecting plate 10, a telescopic rod 11, a hinge rod 12, a scraper 13, and a sponge block 14;
[0028] A drive motor 7 is installed on the side wall of the cleaning cylinder 5. A lead screw 8 extending in the vertical direction is connected to the output shaft at the bottom of the drive motor 7 via a coupling. A lifting frame 9 is threaded onto the lead screw 8. A collar fitted onto the side wall of the cleaning cylinder 5 is provided at the bottom of the lifting frame 9. Four hinge rods 12 are hinged to the collar. A vertically arranged connecting plate 10 is hinged to the bottom of each hinge rod 12. Scrapers 13 and sponge blocks 14 are alternately connected to the outer surfaces of the four connecting plates 10. A telescopic rod 11 is connected between the bottom of the connecting plate 10 and the cleaning cylinder 5.
[0029] A clamping assembly for fixing the cylinder is slidably connected to the cleaning disc. The water tank 15 is welded to the support frame 1. The scrapers 13 and sponge blocks 14 are alternately connected to the outer surfaces of the four connecting plates 10 so that the two scrapers 13 are on the same horizontal line and the two sponge blocks 14 are also on the same horizontal line.
[0030] It should be noted that this utility model, through the cooperation of the clamping assembly and the lifting frame on the cleaning cylinder, can adapt to cylinders of different diameters. This allows the scraper and sponge block on the connecting plate to contact the inner wall of the cylinder through linkage with the lifting frame, enabling rapid cleaning of the inner wall of cylinders of different diameters. The scraper 13 and sponge block 14 on the connecting plate 10 contact the inner wall of the cylinder, thereby enabling cleaning of the inner wall of cylinders of different diameters. Furthermore, the physical contact cleaning by the scraper 13 and sponge block 14 effectively removes dirt, deposits, and other impurities adhering to the inner wall.
[0031] Furthermore, the lifting plate 3 has a cavity, in which a servo motor 20 is installed. A spur gear 21 is keyed to the output shaft of the servo motor 20. The top of the cleaning cylinder 5 extends into the cavity and is fixedly connected to a gear ring 19, which meshes with the spur gear 21.
[0032] Furthermore, the clamping assembly includes a sliding block 24, a rotating shaft 25, a rotating plate 26, a driven gear 27, a motor 28, and a transmission gear 29;
[0033] A motor 28 is installed inside the support frame 1. A transmission gear 29 is keyed to the output shaft of the motor 28. A rotating plate 26 is rotatably connected inside the cleaning tray. A rotating shaft 25 is fixedly connected to the bottom of the rotating plate 26. A driven gear 27 is keyed to the rotating shaft 25. The transmission gear 29 meshes with the driven gear 27.
[0034] At least three clamping plates 2 are slidably connected to the cleaning tray, and each clamping plate 2 is connected to a sliding block 24; the rotating plate 26 is provided with several sliding rails, and the sliding block 24 passes through the cleaning tray and is slidably connected to the corresponding sliding rail.
[0035] It should be noted that the clamping assembly of this utility model can achieve automatic clamping of the clamping plate 2 using a motor structure, or it can be manually operated to control the clamping of the clamping plate 2. When using the motor 28 structure, the operation of the clamping cylinder can be improved by starting the motor 28, the output shaft of the motor 28 drives the transmission gear 29 to rotate, the transmission gear 29 meshes with the driven gear 27, so that the driven gear 27 drives the rotating shaft 25 and the push disk to rotate. While the push disk rotates, it squeezes the sliding block 24 to move. The movement of the sliding block 24 drives the clamping plate 2 to move, thereby automatically adjusting the position of the clamping plate 2, thus achieving automatic clamping and automatic release, and speeding up the work efficiency.
[0036] Furthermore, the cleaning tray is provided with at least three sets of scale indicator structures, each set of scale indicator structures includes two scale plates 22, and the scale indicator structures are located on both sides of the corresponding clamping plate 2;
[0037] Both sides of the clamping plate 2 are fixedly connected to indicator rods 23 for cooperating with the scale plate 22.
[0038] It should be noted that the scale plate 22 and the indicator rod 23 cooperate with each other to indicate the movement stroke of the clamping plate 2. While the clamping plate 2 moves, the indicator rod 23 moves on the scale plate 22 through the clamping plate 2, so as to intuitively display the position change of the clamping plate 2, ensuring that cylinders of different sizes are clamped correctly and safely. After clamping the cylinder, the motor 28 is turned off, and then the cleaning operation can be carried out.
[0039] Furthermore, two observation plates 32 are embedded in the water tank 15.
[0040] It should be noted that the amount of water used when cleaning the cylinder can be clearly displayed using the observation panel 32.
[0041] Furthermore, a protective shell 30 is fixedly connected to the top of the lifting plate 3, and the gear ring 19 and the spur gear 21 are located inside the protective shell 30.
[0042] It should be noted that the protective shell 30 is located at the top of the inner cavity of the lifting plate 3, and is used to shield and protect the gear ring 19 and the spur gear 21.
[0043] Furthermore, the inner side of the clamping plate 2 is provided with a protective pad 31.
[0044] It should be noted that the protective pad 31 reduces the pressure between the clamping plate 2 and the cylinder, thus preventing the clamping plate 2 from wearing down the cylinder.
[0045] In summary, when cleaning the inner wall of the cylinder, first activate the electric push rod 4, causing the output shaft at the top of the electric push rod 4 to extend and move the lifting plate 3 and its upper components upward. This causes the lifting plate 3 to move the cleaning cylinder 5 and the connecting pipe 18 and their upper components upward. After moving to the appropriate position, push the three clamping plates 2 outward, and then place the cylinder between the three clamping plates 2. At this point, you can choose to start the motor to automatically adjust the position of the clamping plates 2 and clamp the cylinder, or you can manually push the three clamping plates 2 inward to clamp the cylinder. Meanwhile, the protective pad 31 reduces the pressure between the clamping plate 2 and the cylinder, preventing the clamping plate 2 from wearing down the cylinder. At this time, the telescopic rod 11 of the drive electric push rod 4 retracts, causing it to move the lifting plate 3 and its upper components downward, so that the cleaning cylinder 5 is located inside the cylinder. At this time, by starting the drive motor 7, the output shaft of the drive motor 7 drives the lead screw 8 to rotate, causing the lead screw 8 to drive the lifting frame 9 on itself to move downward. As the lifting frame 9 moves downward, it also drives the hinge rod 12 and the connecting plate 10 and its upper components downward. As the lifting frame 9 moves downward, it squeezes the hinge rod 12, causing the hinge rod 12 to rotate and drive the connecting plate 10 to move outward. The telescopic rod 11 then extends, causing the scraper 13 and sponge block 14 on the connecting plate 10 to contact the inner wall of the cylinder. This allows for cleaning of the inner walls of cylinders with different diameters. The scraper 13 and sponge block 14 physically contact the inner wall of the cylinder, effectively removing dirt, deposits and other impurities attached to the inner wall. Then, the water pump 16 is started, causing the water pump 16 to draw water from the tank. Water in tank 15 is drawn into bellows 17, then flows from bellows 17 into connecting pipe 18, and finally sprays out from nozzle 6 on cleaning cylinder 5. The observation plate 32 allows staff to easily monitor the remaining water level in tank 15 for spraying the inner wall of the cylinder. Subsequently, servo motor 20 is activated, and its output shaft drives spur gear 21 to rotate. Spur gear 21 meshes with gear ring 19, causing gear ring 19 to rotate cleaning cylinder 5 and its upper components, thus causing cleaning cylinder 5 to rotate nozzle 6. Simultaneously, the connecting plate 10 rotates, causing the sponge block 14 and scraper 13 on it to rotate, thereby scraping away the dirt on the inner wall of the cylinder. During cleaning, controlling the extension and retraction of the telescopic rod 11 of the electric push rod 4 can move the cleaning components up and down, thereby thoroughly cleaning the inner wall of the cylinder. After cleaning, turn off the water pump 16, servo motor 20 and drive motor 7, operate the electric push rod 4, and then remove the cleaned cylinder. Repeat the above operation to perform the next cylinder inner wall cleaning operation.
[0046] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.
Claims
1. A hydraulic cylinder barrel inner wall cleaning device, characterized in that: Includes a support frame (1), on which an electric push rod (4), a water tank (15) and a cleaning tray are installed sequentially from left to right; The output shaft at the top of the electric push rod (4) is equipped with a lifting plate (3) extending to the right. The lower right side of the lifting plate (3) is rotatably connected to a cleaning cylinder (5), so that the cleaning cylinder (5) is suspended above the cleaning tray. A water pump (16) is installed on the water tank (15), and a corrugated pipe (17) is connected to the water pump (16). A U-shaped connecting pipe (18) is provided above the lifting plate (3). Both ends of the connecting pipe (18) penetrate downward through the lifting plate (3), and the left end of the connecting pipe (18) is connected to the corrugated pipe (17), and the right end of the connecting pipe (18) is connected to the cleaning cylinder (5). Multiple nozzles (6) are arranged around the outer periphery of the cleaning cylinder (5). It also includes a drive motor (7), a lead screw (8), a lifting frame (9), a connecting plate (10), a telescopic rod (11), a hinge rod (12), a scraper (13), and a sponge block (14). A drive motor (7) is installed on the side wall of the cleaning cylinder (5). A lead screw (8) extending in the vertical direction is connected to the output shaft at the bottom of the drive motor (7) via a coupling. A lifting frame (9) is threaded on the lead screw (8). A collar fitted on the side wall of the cleaning cylinder (5) is provided at the bottom of the lifting frame (9). Four hinge rods (12) are hinged on the collar. A vertically arranged connecting plate (10) is hinged to the bottom of each hinge rod (12). A scraper (13) and a sponge block (14) are alternately connected on the outer surface of the four connecting plates (10). A telescopic rod (11) is connected between the bottom of the connecting plate (10) and the cleaning cylinder (5). The cleaning disc is slidably connected to a clamping assembly for fixing the cylinder.
2. The hydraulic cylinder barrel inner wall cleaning device according to claim 1, characterized in that: The lifting plate (3) has a cavity, in which a servo motor (20) is installed. A spur gear (21) is keyed to the output shaft of the servo motor (20). The top of the cleaning cylinder (5) extends into the cavity and is fixedly connected to a gear ring (19). The gear ring (19) meshes with the spur gear (21).
3. The hydraulic cylinder barrel inner wall cleaning device according to claim 1, characterized in that: The clamping assembly includes a sliding block (24), a rotating shaft (25), a rotating plate (26), a driven gear (27), a motor (28), and a transmission gear (29). A motor (28) is installed inside the support frame (1). A transmission gear (29) is keyed to the output shaft of the motor (28). A rotating plate (26) is rotatably connected inside the cleaning tray. A rotating shaft (25) is fixedly connected to the bottom of the rotating plate (26). A driven gear (27) is keyed to the rotating shaft (25). The transmission gear (29) meshes with the driven gear (27). At least three clamping plates (2) are slidably connected to the cleaning plate, and each clamping plate (2) is connected to a sliding block (24); the rotating plate (26) is provided with several sliding rails, and the sliding block (24) passes through the cleaning plate and is slidably connected to the corresponding sliding rail.
4. The hydraulic cylinder barrel inner wall cleaning device according to claim 3, characterized in that: The cleaning tray is provided with at least three sets of scale indicator structures, each set of scale indicator structures includes two scale plates (22), and the scale indicator structures are located on both sides of the corresponding clamping plate (2); Both sides of the clamp (2) are fixedly connected to indicator rods (23) for cooperating with the scale plate (22).
5. The hydraulic cylinder barrel inner wall cleaning device according to claim 1, characterized in that: Two observation plates (32) are embedded in the water tank (15).
6. The hydraulic cylinder barrel inner wall cleaning device according to claim 2, characterized in that: The top of the lifting plate (3) is fixedly connected to a protective shell (30), and the gear ring (19) and spur gear (21) are located inside the protective shell (30).
7. The hydraulic cylinder barrel inner wall cleaning device according to claim 3, characterized in that: The inner side of the clamp (2) is provided with a protective pad (31).