Cleaning device for hydraulic mechanical oil tank

Abstract

A cleaning device for a hydraulic mechanical oil tank relates to the field of maintenance and cleaning of hydraulic equipment and comprises a cleaning fluid supply mechanism and a cleaning mechanism, the cleaning mechanism comprises a recovery pipe, a fluid supply assembly, a cleaning head and a rotary cleaning assembly, and the fluid supply assembly is used for conveying a cleaning agent in a lower tank body to the rotary cleaning assembly. The recycling pipe is arranged between the upper box body and the cleaning head, a driving motor is arranged on the inner side of the cleaning head, the rotary cleaning assembly is arranged on a power shaft of the driving motor, and a turbine is arranged on the side, away from the rotary cleaning assembly, of the driving motor. The cleaning head rotationally cleans the inner wall of the oil tank through the rotary cleaning assembly, oil stains and metal scraps on the inner wall of the oil tank are removed in time, meanwhile, the driving motor drives the turbine to rotate, negative pressure suction force is generated on the inner side of the cleaning head, and waste liquid generated by the rotary cleaning assembly can be recycled and transferred; waste liquid flows back to the cleaning liquid supply mechanism through the recovery pipe to be reused, and the interior of the oil tank is kept clean.

Description

Technical Field

[0001] This invention relates to the field of hydraulic equipment maintenance and cleaning technology, and in particular to a cleaning device for hydraulic machinery oil tanks. Background Technology

[0002] In modern industry, hydraulic systems are widely used in various mechanical equipment, from heavy machinery to precision instruments, all of which rely on efficient and stable hydraulic systems. As a crucial component of the hydraulic system, the cleanliness of the hydraulic oil tank directly affects the performance and lifespan of the entire system. With the continuous development of hydraulic technology, the requirements for the reliability and stability of hydraulic systems are becoming increasingly stringent. However, during the operation of a hydraulic system, various impurities inevitably enter the hydraulic oil tank, such as dust, rust, metal particles, and moisture. The presence of these impurities can cause serious damage to the hydraulic system. In hydraulic equipment, the moving surfaces of key components such as hydraulic pumps, hydraulic motors, and hydraulic cylinders gradually wear down during long-term operation. For example, the friction between the gears in a gear pump and between the plunger and cylinder in a piston pump generates metal shavings. These metal particles can cause scratches and wear on the moving surfaces of key components such as hydraulic pumps and valves, leading to increased leakage, pressure drop, and even component failure.

[0003] Therefore, it is necessary to clean metal debris from the hydraulic oil in a timely manner. The place where hydraulic oil accumulates the most is inside the hydraulic oil tank, so it is essential to clean the metal debris in the hydraulic oil tank regularly. Due to gravity, the metal debris in the hydraulic oil tank will settle at the bottom of the tank. In addition, a small amount of metal debris will mix with the hydraulic oil to form sludge and adhere to the inner wall of the tank. Therefore, the inner wall of the tank needs to be thoroughly cleaned. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this invention is to provide a cleaning device for hydraulic machinery oil tanks, which can promptly remove oil stains and metal debris from the inner wall of the oil tank. At the same time, the drive motor drives the turbine to rotate, generating negative pressure suction inside the cleaning head, which can recover and transfer the waste liquid generated by the rotating cleaning components, keeping the inside of the oil tank clean.

[0006] To achieve the above objectives, this invention proposes a cleaning device for hydraulic machinery oil tanks, comprising a cleaning fluid supply mechanism and a cleaning mechanism. The cleaning fluid supply mechanism includes an upper tank and a lower tank that can be detached vertically. The upper tank is located on top of the lower tank, and a movable base is located at the bottom of the lower tank. The cleaning mechanism includes a recovery pipe, a fluid supply assembly, a cleaning head, and a rotating cleaning assembly. The fluid supply assembly is located inside the lower tank and is used to transfer the cleaning fluid from the lower tank to the rotating cleaning assembly. The fluid supply assembly includes components disposed within the lower tank. The lower chamber contains a liquid supply pump, the output end of which is equipped with a liquid supply pipe. The recovery pipe is located between the upper chamber and the cleaning head. A drive motor is located inside the cleaning head. The rotating cleaning assembly is mounted on the drive shaft of the drive motor. The rotating cleaning assembly includes a brush head and a spray nozzle, both of which are mounted on the drive shaft of the drive motor. A rotating liquid inlet assembly is located at the input end of the spray nozzle, and the spray nozzle is connected to the output end of the liquid supply pipe through the rotating liquid inlet assembly. A turbine is located on the side of the drive motor opposite to the rotating cleaning assembly.

[0007] Furthermore, a hollow cylindrical rotating head is provided on the power shaft of the drive motor, the nozzle is provided on the water spray end face of the rotating head, the brush head has an annular structure, the brush head is sleeved on the circumferential wall of the rotating head, a brush seat is provided at the bottom of the brush head, a slider is provided on the side of the brush seat close to the rotating head, a groove adapted to the slider is provided on the outer wall of the rotating head, a fixed seat is provided on the outer wall of the rotating head, and a spring is provided between the fixed seat and the brush seat.

[0008] Furthermore, a magnetic seat is provided at the bottom of the fixing base, the brush holder and the brush head are both made of magnetic material, the fixing base is made of non-magnetic material, the magnetic seat is located on the outside of the brush holder, and the inner wall of the magnetic seat is slidably adapted to the outer wall of the brush holder.

[0009] Furthermore, a radial notch is provided between the inner and outer walls of the brush head, and the absorption end of the cleaning head is provided with a rubber lip, which is made of silicone rubber, and an air inlet is provided through the rubber lip.

[0010] Furthermore, the rotary liquid inlet assembly includes a rotary shaft and a liquid supply seat. The rotary shaft is a hollow structure. One end of the rotary shaft is connected to the power shaft of the drive motor, and the other end of the rotary shaft is connected to the interior of the rotary head. The liquid supply seat is sleeved on the outside of the rotary shaft and is rotatably connected to the rotary shaft by a sealed bearing. The liquid inlet end of the liquid supply seat is connected to the liquid outlet end of the liquid supply pipe. The portion of the rotary shaft located inside the liquid supply seat has a liquid inlet hole.

[0011] Furthermore, a negative pressure shroud is provided at the discharge end of the cleaning head, the turbine is located inside the negative pressure shroud, and a back suction groove is provided between the cleaning head and the rotating cleaning assembly, the back suction groove being used to transfer the back suctioned waste liquid.

[0012] Furthermore, the liquid supply pipe runs through the interior of the cleaning head, the negative pressure hood, and the recovery pipe. The liquid supply pipe is made of corrugated pipe material, the recovery pipe is made of corrugated pipe material, and the inlet end of the recovery pipe is connected to the outlet end of the negative pressure hood.

[0013] Furthermore, the cleaning head is provided with a handle on the outside, and a push switch is provided on the handle. The push switch is electrically connected to the drive motor and the liquid supply pump.

[0014] Furthermore, the output end of the recovery pipe is connected to the interior of the upper box, and an extension pipe is provided inside the upper box. The extension pipe is connected to the recovery pipe, and a drain nozzle is provided at the bottom of the extension pipe. The outlet of the drain nozzle is close to the vertical inner wall of the upper box, and an exhaust window is provided at the top of the extension pipe.

[0015] Furthermore, a magnetic tray is provided at the bottom of the lower housing, a filter element is provided at the inlet end of the liquid supply pump, the filter element is located above the magnetic tray, an overflow outlet is provided through the upper side of the lower housing, and a cleaning agent inlet and outlet are provided at the bottom of the lower housing.

[0016] Beneficial effects: This invention provides cleaning agent conveniently through a movable cleaning fluid supply mechanism. The cleaning agent is transmitted to the cleaning head through a supply pipe. The cleaning head uses a rotating cleaning component to clean the inner wall of the oil tank. During the rotating cleaning process, the nozzle replenishes the cleaning agent from the brush head, ensuring that oil stains and metal debris on the inner wall of the oil tank are removed in a timely manner. At the same time, the drive motor drives the turbine to rotate, creating a negative pressure suction inside the cleaning head, which can recover and transfer the waste liquid generated by the rotating cleaning component, and promptly transfer metal debris and oil stains. The waste liquid is collected back into the upper and lower tanks through the recovery pipe, keeping the inside of the oil tank clean.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a cleaning device for a hydraulic mechanical oil tank according to an embodiment of the present invention; Figure 2This is a partial cross-sectional view of the cleaning mechanism in a cleaning apparatus for a hydraulic mechanical oil tank according to an embodiment of the present invention; Figure 3 A left view of the cleaning head in a cleaning apparatus for a hydraulic mechanical oil tank according to an embodiment of the present invention; Figure 4 This is a front cross-sectional view of the cleaning fluid supply mechanism in a cleaning device for a hydraulic mechanical oil tank according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the brush head in a non-pressed state in a cleaning device for a hydraulic mechanical oil tank according to an embodiment of the present invention.

[0019] As shown in the figure: 1. Cleaning fluid supply mechanism; 11. Upper housing; 12. Lower housing; 121. Cleaning agent inlet and outlet; 13. Exhaust vent; 14. Base; 15. Casters; 16. Overflow outlet; 17. Extension pipe; 18. Drain nozzle; 19. Magnetic tray; 2. Cleaning mechanism; 21. Recovery pipe; 22. Liquid supply assembly; 221. Liquid supply pipe; 222. Liquid supply pump; 223. Suction pipe; 224. Filter element; 23. Rubber lip; 231. Air inlet; 24. Cleaning head; 241. 25. Back suction tank; 25. Negative pressure hood; 251. Turbine; 26. Drive motor; 261. Motor frame; 27. Handle; 271. Press switch; 28. Rotary liquid inlet assembly; 281. Rotary shaft; 282. Sealed bearing; 283. Liquid supply seat; 284. Liquid inlet hole; 29. ​​Rotary cleaning assembly; 291. Brush head; 292. Brush seat; 293. Slider; 294. Nozzle; 295. Rotating head; 296. Notch; 297. Spring; 298. Magnetic seat; 299. Fixing seat. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The cleaning device for hydraulic machinery oil tanks according to embodiments of the present invention will now be described with reference to the accompanying drawings.

[0022] like Figure 1 , Figure 2 , Figure 5 As shown, the cleaning device for hydraulic machinery oil tanks provided in this embodiment of the invention includes a cleaning fluid supply mechanism 1 and a cleaning mechanism 2. The cleaning fluid supply mechanism 1 includes an upper tank 11 and a lower tank 12 that can be separated vertically. The upper tank 11 is disposed on the top of the lower tank 12, and a movable base 14 is disposed at the bottom of the lower tank 12.

[0023] The cleaning mechanism 2 includes a recovery pipe 21, a liquid supply assembly 22, a cleaning head 24, and a rotary cleaning assembly 29. The liquid supply assembly 22 is located inside the lower housing 12 and is used to transfer the cleaning agent in the lower housing 12 to the rotary cleaning assembly 29. The liquid supply assembly 22 includes a liquid supply pump 222 located inside the lower housing 12, and a liquid supply pipe 221 is provided at the output end of the liquid supply pump 222.

[0024] The recovery pipe 21 is located between the upper housing 11 and the cleaning head 24. The inner side of the cleaning head 24 is fixedly equipped with a drive motor 26 via a motor frame 261. The rotating cleaning assembly 29 is located on the power shaft of the drive motor 26. The rotating cleaning assembly 29 includes a brush head 291 and a nozzle 294. Both the brush head 291 and the nozzle 294 are located on the power shaft of the drive motor 26. The input end of the nozzle 294 is equipped with a rotating liquid inlet assembly 28. The nozzle 294 is connected to the output end of the liquid supply pipe 221 through the rotating liquid inlet assembly 28. The drive motor 26 is equipped with a turbine 251 on the side away from the rotating cleaning assembly 29.

[0025] Specifically, when using the cleaning device for hydraulic mechanical oil tanks of the present invention, firstly, cleaning agent is injected into the lower tank 12. The base 14 at the bottom of the lower tank 12 drives the upper tank 11 and the lower tank 12 to move freely by means of casters 15, so as to facilitate the supply of cleaning agent to the rotating cleaning assembly 29. Then, the hydraulic oil tank is opened, and the worker holds the cleaning head 24 and presses the end of the cleaning head 24 tightly against the inner wall of the oil tank.

[0026] The cleaning agent in the lower tank 12 is transferred to the supply pipe 221 through the supply pump 222. The cleaning agent is then transferred to the cleaning head 24 through the supply pipe 221. At this time, in the cleaning head 24, the drive motor 26 drives the rotating cleaning component 29 to rotate at high speed. The cleaning head 24 uses the rotating cleaning component 29 to rotate and clean the inner wall of the oil tank. During the rotation cleaning process, the supply pipe 221 transfers the cleaning agent to the nozzle 294. The nozzle 294 replenishes the cleaning agent in the brush head 291 during the rotation cleaning process, so that the oil and metal debris on the inner wall of the oil tank can be effectively removed. The metal debris and oil are mixed into the cleaning agent to form waste liquid.

[0027] While the rotating cleaning is in progress, the drive motor 26 drives the turbine 251 to rotate. The rotation of the turbine 251 generates negative pressure suction inside the cleaning head 24, which can recover and transfer the waste liquid generated by the rotating cleaning component 29 to the recovery pipe 21. The recovery pipe 21 transfers metal debris and oil stains to the inside of the lower tank 12 for collection, keeping the inside of the oil tank clean.

[0028] In one embodiment of the present invention, such as Figure 2 , Figure 3As shown, a hollow cylindrical rotating head 295 is mounted on the power shaft of the drive motor 26, and a nozzle 294 is mounted on the water spray end face of the rotating head 295. The brush head 291 has an annular structure and is fitted onto the circumferential wall of the rotating head 295. A brush seat 292 is mounted at the bottom of the brush head 291, and a slider 293 is mounted on the side of the brush seat 292 close to the rotating head 295. A groove that matches the slider 293 is mounted on the outer wall of the rotating head 295, and a fixing seat 299 is mounted on the outer wall of the rotating head 295. A spring 297 is mounted between the fixing seat 299 and the brush seat 292.

[0029] Specifically, during the process of rotating and cleaning the inner wall of the oil tank, the worker presses the cleaning head 24, causing the brush head 291 to deform under force. The bottom of the brush head 291 can slide freely along the rotating head 295 via the slider 293, and the bottom of the brush head 291 can also be elastically deformed by the spring 297, so that the brush head 291 can adapt to the curved inner wall of the oil tank and improve the cleaning ability of the inner wall of the oil tank.

[0030] During the rotation of the rotating head 295, the rotating head 295 drives the brush head 291 to rotate, such as Figure 2 and Figure 5 As shown (where, Figure 2 This is a schematic diagram of the structure of brush head 291 in the pressed state. Figure 5 (This is a structural diagram of the brush head 291 in the non-pressed state). Whether the brush head 291 is in the pressed state or not, the nozzle 294 always has a certain gap with the cleaning surface. The nozzle 294 is located inside the brush head 291, so that the cleaning agent sprayed by the nozzle 294 can fully penetrate the inside of the brush head 291 and improve the cleaning ability of the brush head 291.

[0031] In one embodiment of the present invention, such as Figure 2 , Figure 5 As shown, a magnetic seat 298 is provided at the bottom of the fixing base 299. The brush holder 292 and the brush head 291 are both made of magnetic material, while the fixing base 299 is made of non-magnetic material. The magnetic seat 298 is located on the outside of the brush holder 292. The inner wall of the magnetic seat 298 is slidably adapted to the outer wall of the brush holder 292. It should be noted that the maximum magnetic force between the magnetic seat 298 and the brush holder 292 is less than the elastic force of the spring 297 when the magnetic seat 298 and the brush holder 292 are separated, so as to ensure that the brush head 291 can be separated from the magnetic seat 298 without pressure.

[0032] Specifically, during the process of the brush head 291 rotating and cleaning the inner wall of the oil tank, in order to fully adsorb and transfer metal debris, after the brush head 291 is pressed down, as... Figure 2As shown, the brush seat 292 at the bottom of the brush head 291 contacts the magnetic seat 298. The magnetic seat 298 transmits magnetic force to the brush head 291, making the brush head 291 magnetic. At this time, the brush head 291 can rotate to clean the inner wall of the oil tank while magnetically adsorbing the metal debris on the inner wall of the metal, effectively removing the metal debris from the inner wall of the oil tank.

[0033] like Figure 5 As shown, when the brush head 291 is not under force, the brush seat 292 at the bottom of the brush head 291 separates from the magnetic seat 298 due to the elastic force of the spring 297. At this time, the magnetism of the brush head 291 disappears, and the metal debris on the brush head 291 separates from the brush head 291. The metal debris will be transferred with the cleaning agent, effectively collecting the metal debris.

[0034] In one embodiment of the present invention, such as Figure 2 , Figure 3 , Figure 5 As shown, a radial notch 296 is provided between the inner and outer walls of the brush head 291, and a rubber lip 23 is provided at the absorption end of the cleaning head 24. The rubber lip 23 is made of silicone rubber, and an air inlet 231 is provided through the rubber lip 23.

[0035] Specifically, to ensure the effective outflow of cleaning agent from brush head 291, radial notches 296 are provided between the inner and outer walls of brush head 291 to accelerate the transfer and outflow of cleaning agent, thus rinsing away dirt on brush head 291. Simultaneously, the drive motor 26 rotates the turbine 251, creating a negative pressure inside the cleaning head 24 to recover and transfer the cleaning agent. To reduce the negative pressure inside the cleaning head 24 and facilitate its movement along the inner wall of the oil tank, an air inlet 231 is provided through the rubber lip 23. This allows air to enter the cleaning head 24, supplementing the negative pressure generated by the turbine 251, reducing the adhesion between the cleaning head 24 and the inner wall of the oil tank, and facilitating its movement along the inner wall.

[0036] During the process of absorbing the cleaning agent, external air is mixed in through the air inlet 231 on the rubber lip 23. The gas mixes with the cleaning agent, causing the cleaning agent to form bubbles, increasing the adhesion area of ​​the cleaning agent, and effectively cleaning the inner wall of the oil tank.

[0037] In one embodiment of the present invention, such as Figure 2As shown, the rotary liquid inlet assembly 28 includes a rotary shaft 281 and a liquid supply seat 283. The rotary shaft 281 is a hollow structure. One end of the rotary shaft 281 is connected to the power shaft of the drive motor 26, and the other end of the rotary shaft 281 is connected to the interior of the rotary head 295. The liquid supply seat 283 is sleeved on the outside of the rotary shaft 281. The liquid supply seat 283 is rotatably connected to the rotary shaft 281 by a sealed bearing 282. The liquid inlet end of the liquid supply seat 283 is connected to the liquid outlet end of the liquid supply pipe 221. The portion of the rotary shaft 281 located inside the liquid supply seat 283 has a liquid inlet hole 284.

[0038] Specifically, in order to ensure a continuous supply of cleaning agent to the rotating head 295, during the rotation of the rotating head 295 driven by the drive motor 26, the liquid supply pipe 221 transmits the cleaning agent to the liquid supply seat 283. The cleaning agent inside the liquid supply seat 283 then enters the rotating shaft 281 through the liquid inlet hole 284 opened on the rotating shaft 281, and then transmits the cleaning agent to the rotating head 295 through the rotating shaft 281, so that the nozzle 294 can spray out the cleaning agent.

[0039] In one embodiment of the present invention, such as Figure 2 As shown, a negative pressure hood 25 is provided at the discharge end of the cleaning head 24, and a turbine 251 is provided inside the negative pressure hood 25. A back suction groove 241 is provided between the cleaning head 24 and the rotating cleaning assembly 29. The back suction groove 241 is used to transfer the back suction waste liquid. The metal debris swept down by the brush head 291, mixed with the cleaning agent and gas, enter the back suction groove 241 under negative pressure, and enter the turbine 251 through the back suction groove 241. The turbine 251 then transmits the waste liquid to the inside of the recovery pipe 21.

[0040] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the liquid supply pipe 221 runs through the interior of the cleaning head 24, the negative pressure hood 25, and the recovery pipe 21. The liquid supply pipe 221 is made of corrugated pipe material, and the recovery pipe 21 is also made of corrugated pipe material. The inlet end of the recovery pipe 21 is connected to the outlet end of the negative pressure hood 25, which facilitates the folding and stretching of the recovery pipe 21, making the transmission of cleaning agent and recovered waste liquid more flexible.

[0041] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the cleaning head 24 is provided with a handle 27 on the outside, and a push switch 271 is provided on the handle 27. The push switch 271 is electrically connected to the drive motor 26 and the liquid supply pump 222. When in use, the operator can hold the handle 27 to align the cleaning head 24 with the inner wall of the oil tank, and control the operation of the drive motor 26 and the liquid supply pump 222 by pressing the push switch 271, so as to conveniently start and stop the rotation cleaning of the inner wall of the oil tank according to different working conditions.

[0042] In one embodiment of the present invention, such as Figure 1 and Figure 4 As shown, the output end of the recovery pipe 21 is connected to the inside of the upper box 11. An extension pipe 17 is provided inside the upper box 11. The extension pipe 17 is connected to the recovery pipe 21. A drain nozzle 18 is provided at the bottom of the extension pipe 17. The outlet of the drain nozzle 18 is close to the vertical inner wall of the upper box 11. An exhaust window 13 is provided at the top of the extension pipe 17.

[0043] A magnetic tray 19 is provided at the bottom of the lower housing 12, and a filter element 224 is provided at the inlet end of the liquid supply pump 222. The filter element 224 is located above the magnetic tray 19. An overflow port 16 is provided through the upper side of the lower housing 12, and a cleaning agent inlet and outlet 121 is provided at the bottom of the lower housing 12.

[0044] Specifically, the recovery pipe 21 transmits waste liquid and gas to the upper chamber 11. Since the gas is lighter, it is discharged from the exhaust window 13 at the top of the extension pipe 17. The waste liquid is discharged from the drain nozzle 18 at the bottom of the extension pipe 17 into the vertical inner wall of the upper chamber 11 under the action of gravity. The waste liquid flows down along the inner wall of the upper chamber 11 to reduce liquid splashing. The waste liquid eventually enters the bottom of the lower chamber 12. The metal debris is adsorbed by the magnetic tray 19. The cleaning agent is filtered by the filter element 224 and then recycled by the liquid supply pump 222 through the suction pipe 223.

[0045] Later, the cleaning agent can be discharged by opening the cleaning agent inlet and outlet 121. The cleaning agent can also be replenished by injecting through the cleaning agent inlet and outlet 121. When the cleaning agent level in the lower tank 12 is high, the cleaning agent will be discharged along the overflow port 16 to ensure that the cleaning agent in the lower tank 12 is always in a safe position. Later, the upper tank 11 and the lower tank 12 can be opened to remove the magnetic tray 19 at the bottom of the lower tank 12 for cleaning.

[0046] To clearly illustrate the above embodiments, refer to Figures 1-5 The specific working principle of the cleaning device for hydraulic machinery oil tanks of the present invention is as follows: When using the cleaning device for hydraulic machinery oil tanks of the present invention, firstly, cleaning agent is injected into the lower tank 12 through the cleaning agent inlet and outlet 121. After the cleaning agent in the lower tank 12 is full, the cleaning agent will be discharged along the overflow outlet 16 to ensure that the cleaning agent in the lower tank 12 is in a safe position. Then, the upper tank 11 and the lower tank 12 are fastened together and placed on the base 14. The base 14 is equipped with casters 15 to drive the upper tank 11 and the lower tank 12 to move freely, which facilitates the supply of cleaning agent. Then, the worker opens the hydraulic oil tank, holds the handle 27 on the cleaning head 24, and presses the end of the cleaning head 24 tightly against the inner wall of the oil tank.

[0047] The worker then presses the push switch 271 on the handle 27. The cleaning agent in the lower tank 12 is transferred to the supply pipe 221 through the supply pump 222. The cleaning agent is then transferred to the cleaning head 24 through the supply pipe 221. At this time, in the cleaning head 24, the drive motor 26 drives the rotating cleaning component 29 to rotate at high speed. The cleaning head 24 uses the rotating cleaning component 29 to rotate and clean the inner wall of the oil tank. During the rotation cleaning process, the supply pipe 221 transfers the cleaning agent to the nozzle 294. The nozzle 294 replenishes the cleaning agent in the brush head 291 during the rotation cleaning process, so that the oil and metal debris on the inner wall of the oil tank can be effectively removed. The metal debris and oil are mixed into the cleaning agent to form waste liquid.

[0048] During the aforementioned rotary cleaning process, the drive motor 26 rotates the turbine 251, creating a negative pressure inside the cleaning head 24. This causes the waste liquid to be recycled and transferred to the recovery pipe 21. Simultaneously, gas enters the inside of the cleaning head 24 through the air inlet 231 on the rubber lip 23, supplementing the negative pressure generated by the turbine 251 and reducing the adhesion between the cleaning head 24 and the inner wall of the oil tank, facilitating the movement of the cleaning head 24 along the inner wall of the oil tank. Furthermore, during the absorption of the cleaning agent, external air mixes in through the air inlet 231 on the rubber lip 23. This gas mixes with the cleaning agent, causing the cleaning agent to form bubbles, increasing the adhesion area of ​​the cleaning agent and effectively cleaning the inner wall of the oil tank.

[0049] During the process of rotating and cleaning the inner wall of the oil tank, the worker presses the cleaning head 24, and the brush head 291 deforms under force. The bottom of the brush head 291 can slide freely along the rotating head 295 through the slider 293, and the bottom of the brush head 291 can be freely elastically deformed through the spring 297, so that the brush head 291 can adapt to the curved inner wall of the oil tank.

[0050] After the brush head 291 is pressed, as Figure 2 As shown, the brush seat 292 at the bottom of the brush head 291 contacts the magnetic seat 298. The magnetic seat 298 transmits magnetic force to the brush head 291, making the brush head 291 magnetic. At this time, the brush head 291 can rotate to clean the inner wall of the oil tank while magnetically adsorbing the metal debris on the inner wall of the metal, effectively removing the metal debris from the inner wall of the oil tank.

[0051] like Figure 5 As shown, when the brush head 291 is not under force, the brush seat 292 at the bottom of the brush head 291 separates from the magnetic seat 298 due to the elastic force of the spring 297. At this time, the magnetism of the brush head 291 disappears, and the metal debris on the brush head 291 separates from the brush head 291. The metal debris will flow out rapidly from the notch 296 on the inside of the brush head 291 along with the cleaning agent, keeping the inside of the oil tank clean.

[0052] Finally, the recovery pipe 21 transfers the waste liquid and gas into the upper chamber 11. Due to its lighter weight, the gas exits through the exhaust window 13 at the top of the extension pipe 17. The waste liquid, under gravity, flows from the drain nozzle 18 at the bottom of the extension pipe 17 into the vertical inner wall of the upper chamber 11. The waste liquid flows downwards along the inner wall of the upper chamber 11 and eventually enters the bottom of the lower chamber 12. Metal debris is adsorbed by the magnetic tray 19, and the cleaning agent, after being filtered by the filter element 224, is recycled by the liquid supply pump 222. Later, the cleaning agent can be discharged by opening the cleaning agent inlet and outlet 121. Later, the upper chamber 11 and lower chamber 12 can be opened to remove the magnetic tray 19 at the bottom of the lower chamber 12 for cleaning.

[0053] In summary, the cleaning device for hydraulic mechanical oil tanks in this embodiment of the invention provides cleaning agent conveniently through a movable cleaning fluid supply mechanism. The cleaning agent is transmitted to the cleaning head through a supply pipe. The cleaning head uses a rotating cleaning component to clean the inner wall of the oil tank. During the rotating cleaning process, the nozzle replenishes the cleaning agent from the brush head, ensuring that oil stains and metal debris on the inner wall of the oil tank are removed in a timely manner. At the same time, the drive motor drives the turbine to rotate, generating a negative pressure suction inside the cleaning head, which can recover and transfer the waste liquid generated by the rotating cleaning component, and promptly transfer metal debris and oil stains. The waste liquid flows back to the cleaning fluid supply mechanism through the recovery pipe for reuse, keeping the inside of the oil tank clean.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cleaning device for hydraulic machinery oil tanks, characterized in that, It includes a cleaning fluid supply mechanism (1) and a cleaning mechanism (2), wherein the cleaning fluid supply mechanism (1) includes an upper box (11) and a lower box (12) that can be separated vertically, the upper box (11) is located on the top of the lower box (12), and the bottom of the lower box (12) is provided with a movable base (14). The cleaning mechanism (2) includes a recovery pipe (21), a liquid supply assembly (22), a cleaning head (24), and a rotary cleaning assembly (29). The liquid supply assembly (22) is located inside the lower housing (12) and is used to transfer the cleaning agent in the lower housing (12) to the rotary cleaning assembly (29). The liquid supply assembly (22) includes a liquid supply pump (222) located inside the lower housing (12), and the output end of the liquid supply pump (222) is provided with a liquid supply pipe (221). The recovery pipe (21) is disposed between the upper housing (11) and the cleaning head (24). A drive motor (26) is disposed inside the cleaning head (24). The rotating cleaning assembly (29) is disposed on the power shaft of the drive motor (26). The rotating cleaning assembly (29) includes a brush head (291) and a nozzle (294). Both the brush head (291) and the nozzle (294) are disposed on the power shaft of the drive motor (26). A rotating liquid inlet assembly (28) is disposed at the input end of the nozzle (294). The nozzle (294) is connected to the output end of the liquid supply pipe (221) through the rotating liquid inlet assembly (28). The drive motor (26) has a turbine (251) on the side opposite to the rotating cleaning assembly (29).

2. The cleaning device for hydraulic machinery oil tanks according to claim 1, characterized in that, A hollow cylindrical rotating head (295) is provided on the power shaft of the drive motor (26), and the nozzle (294) is provided on the water spray end face of the rotating head (295). The brush head (291) has a ring structure and is sleeved on the circumferential wall of the rotating head (295). A brush seat (292) is provided at the bottom of the brush head (291). A slider (293) is provided on the side of the brush seat (292) close to the rotating head (295). A groove adapted to the slider (293) is provided on the outer wall of the rotating head (295). A fixing seat (299) is provided on the outer wall of the rotating head (295). A spring (297) is provided between the fixing seat (299) and the brush seat (292).

3. The cleaning device for hydraulic machinery oil tanks according to claim 2, characterized in that, The bottom of the fixed base (299) is provided with a magnetic base (298). The brush base (292) and the brush head (291) are both made of magnetic material. The fixed base (299) is made of non-magnetic material. The magnetic base (298) is located on the outside of the brush base (292). The inner wall of the magnetic base (298) is slidably adapted to the outer wall of the brush base (292).

4. The cleaning device for hydraulic machinery oil tanks according to claim 3, characterized in that, The brush head (291) has a radial notch (296) that runs through the inner and outer walls. The cleaning head (24) has a rubber lip (23) at its absorption end. The rubber lip (23) is made of silicone rubber and has an air inlet (231) that runs through it.

5. The cleaning device for hydraulic machinery oil tanks according to claim 2, characterized in that, The rotary liquid inlet assembly (28) includes a rotary shaft (281) and a liquid supply seat (283). The rotary shaft (281) is a hollow structure. One end of the rotary shaft (281) is connected to the power shaft of the drive motor (26), and the other end of the rotary shaft (281) is connected to the interior of the rotary head (295). The liquid supply seat (283) is sleeved on the outside of the rotary shaft (281). The liquid supply seat (283) is rotatably connected to the rotary shaft (281) by a sealed bearing (282). The liquid inlet end of the liquid supply seat (283) is connected to the liquid outlet end of the liquid supply pipe (221). The portion of the rotary shaft (281) located inside the liquid supply seat (283) has a liquid inlet hole (284).

6. The cleaning device for hydraulic machinery oil tanks according to claim 1, characterized in that, The discharge end of the cleaning head (24) is provided with a negative pressure shroud (25), the turbine (251) is located inside the negative pressure shroud (25), and a back suction groove (241) is provided between the cleaning head (24) and the rotating cleaning assembly (29). The back suction groove (241) is used to transfer the back suctioned waste liquid.

7. The cleaning device for hydraulic machinery oil tanks according to claim 6, characterized in that, The liquid supply pipe (221) runs through the interior of the cleaning head (24), the negative pressure hood (25) and the recovery pipe (21). The liquid supply pipe (221) is made of corrugated pipe material, and the recovery pipe (21) is made of corrugated pipe material. The inlet end of the recovery pipe (21) is connected to the outlet end of the negative pressure hood (25).

8. The cleaning device for hydraulic machinery oil tanks according to claim 1, characterized in that, The cleaning head (24) is provided with a handle (27) on the outside, and a push switch (271) is provided on the handle (27). The push switch (271) is electrically connected to the drive motor (26) and the liquid supply pump (222).

9. The cleaning device for hydraulic machinery oil tanks according to claim 1, characterized in that, The output end of the recovery pipe (21) is connected to the interior of the upper box (11). An extension pipe (17) is provided inside the upper box (11). The extension pipe (17) is connected to the recovery pipe (21). A drain nozzle (18) is provided at the bottom of the extension pipe (17). The outlet of the drain nozzle (18) is close to the vertical inner wall of the upper box (11). An exhaust window (13) is provided at the top of the extension pipe (17).

10. The cleaning device for hydraulic machinery oil tanks according to claim 1, characterized in that, The bottom of the lower housing (12) is provided with a magnetic tray (19), the inlet end of the liquid supply pump (222) is provided with a filter element (224), the filter element (224) is located above the magnetic tray (19), the upper side of the lower housing (12) is provided with an overflow port (16), and the bottom of the lower housing (12) is provided with a cleaning agent inlet and outlet (121).

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