Air conditioner finned tube cleaning apparatus

Abstract

The application discloses air conditioner finned tube cleaning equipment, including frame, setting on the cleaning device of frame and setting in the cleaning fluid recovery tank below frame, the frame is also provided with clamping device and fixing device, clamping device includes a plurality of push mechanism and setting on the movable clamp jaw of corresponding push mechanism which are oppositely arranged above the frame, each movable clamp jaw is provided with telescopic block, the fixing device includes two fixed clamp bodies which are oppositely arranged on the bottom of the frame, drive device setting on the side of fixed clamp body and screw thread chuck device setting in fixed clamp body, the present application can adjust the distance of the fixture according to the finned tube of different diameter, and the finned tube of different diameter can be fixed and cleaned, and the heat exchanger with finned tube that cannot be disassembled can also be cleaned, so that the applicability is greater.

Description

Technical Field

[0001] This invention relates to the field of finned tube cleaning equipment, and more particularly to an air conditioning finned tube cleaning equipment. Background Technology

[0002] Finned tube heat exchangers are one of the earliest and most successful discoveries in the improvement of tube heat exchangers. Finned tubes are the primary heat exchange element in air conditioning heat exchangers, and this method remains the most widely used among all methods for enhancing heat transfer on various tube heat exchange surfaces. With prolonged use, air conditioners accumulate a large amount of dust on the fins of the tubes. Due to the special structure of the finned tubes, cleaning them is quite tedious. Therefore, there is an urgent need for finned tube cleaning equipment to remove dust from the finned tubes of air conditioning heat exchangers.

[0003] Chinese Patent Application No. "201910883912.0" discloses "A cleaning and maintenance device for air conditioning finned tubes, comprising a base plate (1), a driving device (2), a cleaning device (3), and a fixing device (4); characterized in that: the driving device (2) is installed on the upper end of the base plate (1), and the cleaning device (3) is evenly arranged along its circumference inside the driving device (2); the fixing device (4) is installed in the middle of the upper end of the base plate (1); wherein: the fixing device (4) comprises a fixed base (41), a gear A (42), a transverse limiting mechanism (43), a central column (44), and a longitudinal..." Limiting mechanism (45); The fixed base (41) is installed in the middle of the upper end of the base plate (1). The cross section of the fixed base (41) is U-shaped. Gear A (42) is provided on the upper outer wall of the fixed base (41). A transverse limiting mechanism (43) is symmetrically arranged inside the fixed base (41). A central column (44) is installed in the middle of the fixed base (41). A T-shaped groove is opened in the upper part of the central column (44). A rectangular through hole is opened in the lower part of the central column (44). A longitudinal limiting mechanism (45) is provided in the rectangular through hole. The driving device (2) includes a driving motor (21) and a gear B (22). The drive motor (21) is mounted on the upper end of the base plate (1) via a motor mount, and a gear B (22) is mounted on the output shaft of the drive motor (21); the sleeve (24) is mounted on the base plate (1) via a sliding fit, and a gear C (23) is fitted on the outer wall of the sleeve (24), and the gear C (23) meshes with the gear B (22); the cleaning device (3) includes a rotating column (31), a cleaning mechanism (32), and a gear D (33); the rotating column (31) is mounted on the inner wall of the bottom end of the sleeve (24) via a bearing, and the rotating column (31) is mounted on the inner wall of the bottom end of the sleeve (24). 1) The outer wall has a spiral structure, and cleaning mechanisms (32) are evenly arranged along the outer wall of the rotating column (31). Gear D (33) is installed at the lower end of the rotating column (31), and gear D (33) meshes with gear A (42). "The longitudinal limiting mechanism and the transverse limiting mechanism set in this technical solution can automatically fix the finned tube completely on the central column as the finned tube is placed. This technical solution has a good fixing effect on single-tube finned tubes. However, in actual work, for heat exchangers where the finned tubes cannot be disassembled, the entire unit can only be cleaned. This technical solution cannot effectively fix the entire heat exchanger and cannot clean the finned tubes of the heat exchanger, so its applicability is limited.

[0004] Chinese Patent Application No. "202020662305.X" discloses "A cleaning device for air cooler finned tubes, used for cleaning the finned tubes, characterized in that it includes: a support frame, a placement assembly, a decontamination assembly, and a cleaning assembly; the placement assembly is disposed in the middle of the support frame, and the placement assembly is used to place the finned tubes and to clamp and fix the finned tubes when they are placed on the placement assembly; the decontamination assembly is slidably disposed on the support frame, and the cleaning assembly is disposed on the support frame and the cleaning assembly is connected to the support frame." The cleaning components are opposite each other; and there is a gap between the cleaning components and the washing components, so that when the finned tube is placed on the placement component, at least a portion of the finned tube is located in the gap between the cleaning components and the washing components. Furthermore, in paragraphs

[0101] and

[0105] of the [Detailed Description] section of the specification, it is disclosed that "the placement component 20 may further include an adjustment component 24, which is connected to a baffle 22, and both ends of the baffle 22 are slidably mounted on the waist-shaped groove 211 via the adjustment component 24. The first driving structure 23 drives the adjustment component 24 to adjust the baffle 22 to the wall." The technical solution states that "the section component 24 drives the baffle 22 to move" and "the adjustment component 24 may include a sliding rod 241, sleeve shafts 242 sleeved at both ends of the sliding rod 241, and a first driving structure 23 fixed on one side of each sleeve shaft 242. The sliding rod 241 is connected to the baffle 22, and both ends of the sliding rod 241 slide in the waist-shaped groove 211. It may also include a support plate 243, which is fixed on the support frame 10, and the first driving structure 23 is located on the support plate 243." In this technical solution, the finned tube to be cleaned is fixed by placing the components, and the driving structure 23 can be used to fix it. The adjustment component 24 is driven to move within the waist-shaped groove 211 to adjust the relative distance between the adjustment component 24 and the other side of the placement frame 21. The placement frame 21 can be adjusted according to different sizes and numbers of finned tubes 70, which helps to clamp different sizes and numbers of finned tubes 70. The applicable range has been expanded to a certain extent. However, in actual cleaning work, the finned tubes have few limiting parts and are all columnar structures. The cooperation between the baffle 22 and the other side of the placement frame 21 cannot effectively fix the finned tubes, and the fixation of the heat exchanger as a whole is also very limited. Summary of the Invention

[0005] The purpose of this invention is to provide an air conditioning finned tube cleaning device that can adjust the spacing of the clamps according to the finned tubes of different diameters, and perform fixed cleaning on finned tubes of different diameters. It can also be used for heat exchangers where the finned tubes cannot be disassembled, by adjusting the appropriate spacing of the fixing device to perform overall clamping and cleaning, thus having greater applicability and solving the problems in the prior art.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] An air conditioner finned tube cleaning device includes a frame, a cleaning device mounted on the frame, and a cleaning fluid recovery tank mounted below the frame. The frame also includes a clamping device and a fixing device. The clamping device includes several pushing mechanisms arranged opposite each other above the frame and movable grippers mounted on corresponding pushing mechanisms. Each movable gripper is provided with a telescopic block. The fixing device includes two fixed clamps arranged opposite each other at the bottom of the frame, a driving device mounted on the side of the fixed clamps, and a threaded jaw device mounted inside the fixed clamps. Several first linear guide rails are provided below each fixed clamp for linear displacement of the fixed clamps by the driving device.

[0008] Furthermore, the pushing mechanism includes a first cylinder seat fixed on the frame, a first cylinder fixed on the first cylinder seat, a second linear guide rail disposed at the output end of the first cylinder, and a second cylinder fixed on the slider of the second linear guide rail. The slide rail of the second linear guide rail is fixed on the first cylinder seat, the slider of the second linear guide rail is fixedly connected to the output end of the first cylinder, and the movable gripper is installed at the output end of the second cylinder.

[0009] Furthermore, the movable gripper includes a mounting part fixedly connected to the output end of the second cylinder, a fixed finger fixedly connected to the mounting part, and a movable finger movably connected to the mounting part. The mounting part has a mounting groove near the fixed finger, a spring is provided in the mounting groove, and a push column is provided in the spring. One end of the push column passes through the spring and is movably connected to the movable finger, and the other end is fixedly connected to the telescopic block.

[0010] Furthermore, the driving device includes a housing mounted on the frame base, a linear displacement driving mechanism mounted inside the housing, and a first synchronous belt transmission mechanism mounted on one side of the linear displacement driving mechanism. The linear displacement driving mechanism includes a second cylinder seat mounted on the frame base, a driving cylinder mounted on the second cylinder seat, and a third linear guide rail mounted on the output end of the driving cylinder on the second cylinder seat. A rack is provided on the upper surface of the slider of the third linear guide rail, and a shaft seat is provided on one side of the linear guide rail. A rotating shaft is rotatably connected to the shaft seat. A gear is fixedly connected to one end of the rotating shaft, and the other end is fixedly connected to the driving wheel of the first synchronous belt transmission mechanism. The gear meshes with the rack. One end of the fixed clamp near the driving mechanism is connected to the rack through a connector, and the other end of the fixed clamp near the driving mechanism is fixedly connected to the synchronous belt through a connector, so that the two fixed clamps can maintain relative synchronous movement.

[0011] Furthermore, each of the fixed clamping bodies has an installation cavity. The threaded jaw device includes two single-axis threaded jaw mechanisms respectively disposed in the installation cavities of the two fixed clamping bodies. Each single-axis threaded jaw mechanism includes a first servo motor disposed on the fixed clamping body at the end away from the driving device, a transmission shaft fixedly connected to the output end of the corresponding first servo motor, two first bevel gears disposed on the corresponding transmission shaft, two second bevel gears respectively meshing with the corresponding first bevel gears, two lead screws respectively rotating coaxially with the corresponding second bevel gears, and two arc-shaped jaws respectively slidably connected to the corresponding lead screws. Two sliding grooves are provided on one side of the installation cavity in the fixed clamping body. The sliding grooves extend from the clamping surface of the fixed clamping body to allow the two arc-shaped jaws to slide in the corresponding sliding grooves. The lead screws and bevel gears are connected by a connecting shaft. The centers of the circles containing the clamping surfaces of the four arc-shaped jaws coincide. A through hole is provided at the center of the clamping surface of the arc-shaped jaws. An internal thread is provided on the side wall of the through hole to allow the lead screw to slide in cooperation with the through hole.

[0012] Furthermore, the cleaning device includes two movable cleaning mechanisms arranged opposite each other on the upper surface of the frame. Each movable cleaning mechanism includes a second servo motor arranged on one side of the top of the frame, a lead screw and nut mechanism connected to the output end of the second servo motor, a fourth linear guide rail arranged on the side of the top of the frame opposite to the lead screw and nut mechanism, a movable frame fixed on the upper surface of the nut of the lead screw and nut mechanism, and a reciprocating cleaning device fixed on the movable frame. The end of the movable frame away from the lead screw and nut mechanism is fixedly connected to the slider of the fourth linear guide rail for the second servo motor to drive the movable frame to make linear displacement.

[0013] Furthermore, the reciprocating cleaning device includes a fifth linear guide rail fixed on a movable frame, a second synchronous belt drive mechanism disposed on one side of the fifth linear guide rail, a mounting plate disposed on the slider of the fifth linear guide rail, a drive motor disposed on the mounting plate, a cleaning brush roller rotatably connected to the mounting plate on a fixed axis, and several nozzles fixed on one side of the cleaning brush roller. The main shaft of the drive wheel of the second synchronous belt drive mechanism is connected to a third servo motor. The synchronous belt of the second synchronous belt drive mechanism is fixedly connected to the slider of the fifth linear guide rail. The end face of the slider of the fifth linear guide rail opposite to the second synchronous belt drive mechanism is fixedly connected to the mounting plate. The output end of the drive motor is provided with a drive gear, and the cleaning brush roller is provided with a driven gear at one end corresponding to the drive gear. The driven gear meshes with the drive gear to drive the motor to drive the cleaning brush roller to rotate on a fixed axis. The several nozzles are connected to an external cleaning liquid storage tank through a main pipeline. A pump assembly is installed on the end of the main pipeline near the external cleaning liquid storage tank.

[0014] Furthermore, a number of V-shaped grooves are provided at the middle of the bottom of the frame, and a drainage channel is provided at the bottom of the V-shaped grooves. The drainage channel is connected to the cleaning fluid recovery tank for the purpose of recovering the cleaning fluid.

[0015] Furthermore, the clamping surface of the fixing clamp and the arc-shaped clamping surface of the arc-shaped claw are both provided with flexible material to protect the limiting part at the bottom of the finned tube to be cleaned from being pinched and damaged by the fixing clamp and the arc-shaped claw.

[0016] Furthermore, the clamping surfaces of the fixed finger, the movable finger, and the telescopic block are all provided with flexible material to protect the limiting part at the top of the finned tube to be cleaned from being damaged by the movable claw.

[0017] The beneficial effects of the present invention are as follows: The present invention uses the movable jaws of the clamping device, the fixed frame of the fixing device, and the threaded jaw device in the fixed clamp to clamp and fix finned tubes of different diameters. If the finned tubes cannot be disassembled, the heat exchanger as a whole can be fixed by the deformed movable jaws and the fixed clamp of the fixing device. This cleaning device can be used for finned tubes of different diameters and the heat exchanger as a whole, and has greater applicability in actual work. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an air conditioner finned tube cleaning device provided by the present invention;

[0019] Figure 2 A schematic diagram of the overall structure of the driving device provided by the present invention;

[0020] Figure 3 This is a front view of an air conditioner finned tube cleaning device provided by the present invention;

[0021] Figure 4 for Figure 3 A cross-sectional schematic diagram of AA in the middle;

[0022] Figure 5 for Figure 3 Cross-sectional schematic diagram of BB;

[0023] Figure 6 for Figure 4 An enlarged schematic diagram of part D;

[0024] Figure 7 for Figure 3 A cross-sectional view of CC.

[0025] Figure 8 This is a schematic diagram of the overall structure of the cleaning device provided by the present invention.

[0026] Figure labeling: 100, Frame; 110, V-groove; 200, Cleaning device; 210, Moving cleaning mechanism; 211, Second servo motor; 212, Fourth linear guide; 213, Screw and nut mechanism; 214, Moving frame; 215, Reciprocating cleaning device; 2151, Fifth linear guide; 2152, Second synchronous belt linear guide; 2153, Mounting plate; 2154, Drive motor; 2155, Cleaning brush roller; 2156, Nozzle; 2157, Third servo motor; 2158, Drive gear; 2159, Driven gear; 216, Main pipeline; 300, Cleaning fluid recovery tank; 400, Clamping device; 410, Pushing mechanism; 411, First cylinder seat; 412, First cylinder; 413, Second linear guide; 414, ... Two cylinders; 420, movable gripper; 421, mounting part; 422, fixed finger; 423, movable finger; 424, spring; 425, push column; 426, telescopic block; 500, fixing device; 510, fixed clamping body; 520, drive device; 521, housing; 522, linear displacement drive mechanism; 5221, second cylinder seat; 5222, drive cylinder; 5223, third linear guide rail; 523, first synchronous belt drive mechanism; 524, rack; 525, shaft seat; 526, rotating shaft; 527, gear; 530, single-axis threaded gripper mechanism; 531, first servo motor; 532, drive shaft; 533, first bevel gear; 534, second bevel gear; 535, lead screw; 536, arc-shaped gripper; 540, first linear guide rail. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] The following is an example:

[0030] like Figure 1The air conditioning fin tube cleaning equipment shown includes a frame 100, a cleaning device 200 mounted on the frame 100, and a cleaning fluid recovery tank 300 mounted below the frame 100. The frame 100 also includes a clamping device 400 and a fixing device 500. The clamping device 400 includes two pushing mechanisms 410 fixed above the frame 100 and oppositely arranged, and movable grippers 420 mounted on corresponding pushing mechanisms 410. Each movable gripper 420 is provided with a telescopic block 426. The fixing device 500 includes two fixing clamps oppositely arranged at the bottom of the frame 100. The frame 100 includes a body 510, a drive device 520 disposed on the side of the fixed clamp 510, and a threaded jaw device disposed inside the fixed clamp 510. Each fixed clamp 510 has two first linear guide rails 540 disposed below it. The two first linear guide rails 540 are disposed perpendicular to the clamping surface of the fixed clamp 510 so as to allow the fixed clamp 510 to make linear displacement through the drive device 520. In addition, six V-shaped grooves 110 are provided at the middle of the bottom of the frame 100. The bottom of the V-shaped grooves 110 is provided with a drainage channel, which is connected to the cleaning fluid recovery tank 300 for the purpose of recovering the cleaning fluid.

[0031] like Figure 2 , Figure 4 , Figure 6 The push mechanism 410 shown includes a first cylinder seat 411 fixed on the frame 100, a first cylinder 412 fixed on the first cylinder seat 411 by bolts, a second linear guide rail 413 disposed at the output end of the first cylinder 412, and a second cylinder 414 fixed on the slider of the second linear guide rail 413 by bolts. The slide rail of the second linear guide rail 413 is fixed on the first cylinder seat 411 by bolts. The slider of the second linear guide rail 413 is fixedly connected to the output end of the first cylinder 412. A movable gripper 420 is installed at the output end of the second cylinder 414. The movable gripper 420 includes a mounting part 421 threadedly connected to the output end of the second cylinder 414, and a fixing part fixedly connected to the mounting part 421. The fixed finger 422 and the movable finger 423 are hinged to the mounting part 421. The mounting part 421 has a mounting groove at one end near the fixed finger 422. The mounting part 421 and the fixed finger 422 are an integral structure. A spring 424 is installed in the mounting groove. A push column 425 is installed in the spring 424. One end of the push column 425 passes through the spring 424 and is hinged to the movable finger 423. The other end is threaded to the telescopic block 426. When the entire heat exchanger needs to be cleaned, or when the clamping part is a planar structure, the movable finger 423 rotates under the push of the second cylinder 414. The movable finger 423 pushes the push column 425, and the telescopic block 426 is pushed out by the push column 425. The entire movable gripper 420 achieves clamping of the planar clamping part.

[0032] like Figure 2 , Figure 5The drive device 520 shown includes a housing 521 mounted on the base of the frame 100, a linear displacement drive mechanism 522 mounted inside the housing 521, and a first synchronous belt drive mechanism 523 mounted on one side of the linear displacement drive mechanism 522. The linear displacement drive mechanism 522 includes a second cylinder seat 5221 mounted on the base of the frame 100, a drive cylinder 5222 mounted on the second cylinder seat 5221, and a third linear guide rail 5223 mounted on the output end of the drive cylinder 5222 on the second cylinder seat 5221. A rack 524 is provided on the upper end face of the slider of the third linear guide rail 5223. A bearing seat 525 is provided on one side of the linear guide rail. A rotating shaft 526 is rotatably connected to the bearing seat 525. A gear 527 is fixedly connected to one end of the rotating shaft 526, and the other end is fixedly connected to the drive wheel of the first synchronous belt drive mechanism 523. A fixed connection is established, with gear 527 meshing with rack 524. One end of fixed clamp 510 near the drive mechanism is connected to rack 524 via a connector, and the other end of fixed clamp 510 near the drive mechanism is fixedly connected to synchronous belt via a connector. This allows the two fixed clamps 510 to maintain relative synchronous movement. When the two fixed clamps 510 are clamping, drive cylinder 5222 pushes rack 524, which drives gear 527 to rotate on the fixed axis of rotating shaft 526 on bearing 525. Simultaneously, it drives the drive wheel of the first synchronous belt transmission mechanism 523 to rotate, which in turn drives the synchronous belt to rotate. One fixed clamp 510 is fixedly connected to rack 524 via a connecting plate, and the other fixed clamp 510 is fixedly connected to synchronous belt via a connecting plate. Therefore, the two fixed clamps 510 move synchronously relative to each other on the first linear guide rail.

[0033] Each fixed clamp 510 has an installation cavity. The threaded jaw device includes two single-axis threaded jaw mechanisms 530 respectively disposed in the installation cavities of the two fixed clamps 510. Each single-axis threaded jaw mechanism 530 includes a first servo motor 531 disposed on the fixed clamp 510 at the end away from the drive device 520, a transmission shaft 532 fixedly connected to the output end of the corresponding first servo motor 531, two first bevel gears 533 disposed on the corresponding transmission shaft 532, two second bevel gears 534 respectively meshing with the corresponding first bevel gears 533, and two coaxially rotating gears 534 respectively. The screw 535 and two arc-shaped claws 536 are slidably connected to the corresponding screw 535. Two sliding grooves are opened on one side of the mounting cavity inside the fixed clamping body 510. The sliding grooves extend from the clamping surface of the fixed clamping body 510 to allow the two arc-shaped claws 536 to slide in the corresponding sliding grooves. The screw 535 and the bevel gear 527 are connected by a connecting shaft. The centers of the circles containing the clamping surfaces of the four arc-shaped claws 536 coincide. A through hole is opened at the center of the clamping surface of the arc-shaped claws 536. An internal thread is opened on the side wall of the through hole to allow the screw 535 to slide in cooperation with the through hole. The arc-shaped clamping surfaces of the four arc-shaped claws 536 contract outward from the center.

[0034] like Figure 5 , Figure 8 The cleaning device 200 shown includes two movable cleaning mechanisms 210 arranged opposite to each other on the upper surface of the frame 100. Each movable cleaning mechanism 210 includes a second servo motor 211 arranged on one side of the top of the frame 100, a lead screw and nut mechanism 213 connected to the output end of the second servo motor 211, a fourth linear guide rail 212 arranged on the top of the frame 100 opposite to the lead screw and nut mechanism 213, a movable frame 214 fixed on the upper surface of the nut of the lead screw and nut mechanism 213, and a reciprocating cleaning device 215 fixed on the movable frame 214. The end of the movable frame 214 away from the lead screw and nut mechanism 213 is fixedly connected to the slider of the fourth linear guide rail 212 so as to drive the movable frame 214 to make linear displacement by the second servo motor 211.

[0035] The reciprocating cleaning device 215 includes two fifth linear guide rails 2151 fixed on the movable frame 214, two second synchronous belt drive mechanisms 2152 disposed on one side of the fifth linear guide rails 2151, two mounting plates 2153 disposed on the sliders of the two fifth linear guide rails 2151, a drive motor 2154 disposed on the mounting plate 2153, two cleaning brush rollers 2155 rotatably connected to the mounting plate 2153, and two nozzles 2156 fixed on opposite sides of each cleaning brush roller 2155. The four nozzles 2156 on both sides of the two cleaning brush rollers 2155 are all downwardly positioned and inclined toward the central axis of the pre-installation position at an angle of 35° to 50°. The second synchronous belt drive mechanism 2152 has a drive wheel shaft connected to a third servo motor 2157. The synchronous belt of the second synchronous belt drive mechanism 2152 is fixedly connected to the slider of the fifth linear guide rail 2151. The end face of the slider of the fifth linear guide rail 2151 opposite to the second synchronous belt drive mechanism 2152 is fixedly connected to the mounting plate 2153. The output end of the drive motor 2154 is provided with a drive gear 2158. The cleaning brush roller 2155 is provided with a driven gear 2159 at one end corresponding to the drive gear 2158. The driven gear 2159 meshes with the drive gear 2158 to drive the cleaning brush roller 2155 to rotate on a fixed axis. The four nozzles 2156 are connected to an external cleaning liquid tank through the main pipeline 216. A pump assembly is installed on the main pipeline 216 near the external cleaning liquid tank.

[0036] As a further embodiment, the clamping surface of the fixed clamp 510 and the arc-shaped clamping surface of the arc-shaped claw 536 are both provided with flexible material to protect the bottom limiting part of the finned tube to be cleaned from being pinched by the fixed clamp 510 and the arc-shaped claw 536. The clamping surface of the fixed finger 422, the clamping surface of the movable finger 423 and the clamping surface of the telescopic block 426 are all provided with flexible material to protect the top limiting part of the finned tube to be cleaned from being pinched by the movable claw 420.

[0037] In addition, an air conditioning fin tube cleaning device also includes a control cabinet and an air pump assembly. The control cabinet includes a system control unit and an electrical control unit. The first servo motor 531, the second servo motor 211, the third servo motor 2157, the drive motor 2154, and the pump assembly are electrically connected to the system control unit and the electrical control unit respectively through wires. The system control unit has a preset rotational speed parameter for the third servo motor. The first cylinder 412, the second cylinder 414, and the drive cylinder 5222 are respectively connected to the air pump assembly. The pump body of the air pump assembly is respectively connected to the system control unit to control the working state of the pneumatic unit respectively.

[0038] During the cleaning of the finned tube, the two second servo motors 211 are first started, driving the lead screw of the lead screw nut mechanism 213 to rotate. This causes the two reciprocating cleaning devices 215 to move linearly in opposite directions on the fifth linear guide rail 2151. The system control unit sends a signal to the air pump assembly, which controls the two second cylinders 414 to retract their piston rods. The drive cylinder 5222 of the drive device 520 retracts, and the rack 524 drives the gear 527 to rotate. The gear 527 rotates coaxially with the drive wheel of the first synchronous belt drive mechanism 523. The first synchronous belt drive mechanism 523 rotates in the opposite direction under the drive of the drive wheel. The two fixed clamps 510 make opposite linear displacements on the first linear guide rail 540, thereby expanding the installation position of the finned tube and vertically placing it in the cleaning process. After the finned tube is placed on the base of the frame 100, the system control unit controls the two first servo motors 531 to start synchronously. The two first servo motors drive the two corresponding transmission shafts 532 to rotate. The two first bevel gears 533 on the same transmission shaft 532 drive the two second bevel gears 534 to rotate. The two lead screws 535 rotate coaxially with the two second bevel gears 534, causing the two arc-shaped claws 536 on the same solid clamp 510 to slide towards the center position in the slide groove. The four arc-shaped claws 536 clamp the lower end of the finned tube to keep the finned tube upright. The system control unit sends a signal to the air pump assembly, and the air pump assembly controls the two second cylinders 414 to extend the piston rods. The two movable claws 420 clamp the upper end of the finned tube.

[0039] If the diameter of the finned tube is too small, the air pump assembly controls the piston rod of the first cylinder 412 to extend, increasing the support distance of the movable claw 420. The drive cylinder 5222 of the drive device 520 extends, and the rack 524 drives the gear 527 to rotate. The gear 527 rotates coaxially with the drive wheel of the first synchronous belt drive mechanism 523. The first synchronous belt drive mechanism 523 rotates in the forward direction under the drive of the drive wheel. The two fixed clamps 510 make opposite linear displacements on the first linear guide rail 540. The four arc-shaped claws 536 on the two fixed clamps 510 move further towards the center to clamp the lower end of the finned tube.

[0040] When clamping and fixing heat exchangers with non-removable finned tubes or heat exchangers with flat clamping surfaces, the system control unit controls two first servo motors 531 to start synchronously. The two first servo motors drive two corresponding drive shafts 532 to rotate. Two first bevel gears 533 on the same drive shaft 532 drive two second bevel gears 534 to rotate. Two lead screws 535 rotate coaxially with the two second bevel gears 534, causing two arc-shaped claws 536 on the same solid clamp 510 to slide away from the center position in the slide groove. The four arc-shaped claws 536... The clamping surface contracts, and the air pump assembly controls the drive device 520 to control the two fixed clamping bodies 510 to clamp and fix the heat exchanger and the lower clamping surface of the heat exchanger, which is a flat surface. The air pump assembly controls the push mechanism 410 to push the two movable jaws 420 to clamp the upper clamping surface of the heat exchanger. The movable finger 423 rotates under the push of the second cylinder 414. The movable finger 423 pushes the push column 425, and the telescopic block 426 is pushed out by the push column 425. The entire movable jaw 420 achieves clamping of the flat clamping part.

[0041] After the parts to be cleaned are clamped and fixed, the two second servo motors 211 start, driving the lead screw of the lead screw and nut mechanism 213 to rotate. This causes the two reciprocating cleaning devices 215 to move linearly relative to each other on the fifth linear guide rail 2151. Depending on the actual clamping pipe diameter or heat exchanger width, the second servo motors 211 drive the reciprocating cleaning devices 215 to both sides of the parts to be cleaned. The drive motor 2154 starts, driving the drive gear 2158 to rotate. The drive gear 2158 drives the driven gear 2159 to rotate, thereby driving the cleaning brush roller 2155 to rotate. At the same time, the external cleaning liquid tank... When the pump assembly starts, the cleaning fluid is sprayed from the nozzle 2156 through the main pipeline 216 to clean the components. When cleaning the heat exchanger, the two third servo motors 2157 start, driving the drive wheel of the second synchronous belt drive mechanism 2152 to rotate. The synchronous belt drives the mounting plate to move linearly on the fifth linear guide rail 2151. According to the preset rotation parameters, the third servo motors 2157 control the second synchronous belt drive mechanism 2152 to drive the mounting plate to reciprocate linearly on the slide rail of the fifth linear guide rail 2151, thereby cleaning the heat exchanger as a whole.

[0042] In summary, this invention can adjust the spacing of the clamps according to the diameter of the finned tubes, and fix and clean the finned tubes of different diameters. It can also adjust the appropriate spacing of the fixing device for heat exchangers where the finned tubes cannot be disassembled, and perform overall clamping and cleaning, thus having wider applicability.

[0043] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air conditioner finned tube cleaning device, comprising a frame, a cleaning device mounted on the frame, and a cleaning fluid recovery tank mounted below the frame, characterized in that: The frame is also equipped with a clamping device and a fixing device. The clamping device includes several pushing mechanisms arranged opposite each other on the upper part of the frame and movable grippers arranged on the corresponding pushing mechanisms. Each movable gripper is equipped with a telescopic block. The fixing device includes two fixed clamping bodies arranged opposite each other on the bottom of the frame, a driving device arranged on the side of the fixed clamping bodies, and a threaded jaw device arranged inside the fixed clamping bodies. Several first linear guide rails are arranged below each fixed clamping body to allow the fixed clamping body to make linear displacement by the driving device. Each of the fixed clamping bodies has an installation cavity. The threaded jaw device includes two single-axis threaded jaw mechanisms respectively disposed in the installation cavities of the two fixed clamping bodies. Each single-axis threaded jaw mechanism includes a first servo motor disposed on the fixed clamping body at the end away from the driving device, a transmission shaft fixedly connected to the output end of the corresponding first servo motor, two first bevel gears disposed on the corresponding transmission shaft, two second bevel gears respectively meshing with the corresponding first bevel gears, two lead screws respectively rotating coaxially with the corresponding second bevel gears, and two arc-shaped jaws respectively slidably connected to the corresponding lead screws. Two sliding grooves are provided on one side of the installation cavity of the fixed clamping body. The sliding grooves extend from the clamping surface of the fixed clamping body to allow the two arc-shaped jaws to slide in the corresponding sliding grooves. The lead screws and bevel gears are connected by a connecting shaft. The centers of the circles containing the clamping surfaces of the four arc-shaped jaws coincide. A through hole is provided at the center of the clamping surface of the arc-shaped jaws. An internal thread is provided on the side wall of the through hole to allow the lead screw to slide in cooperation with the through hole.

2. The air conditioner finned tube cleaning equipment according to claim 1, characterized in that: The pushing mechanism includes a first cylinder seat fixed on the frame, a first cylinder fixed on the first cylinder seat, a second linear guide rail disposed at the output end of the first cylinder, and a second cylinder fixed on the slider of the second linear guide rail. The slide rail of the second linear guide rail is fixed on the first cylinder seat, and the slider of the second linear guide rail is fixedly connected to the output end of the first cylinder. The movable gripper is installed at the output end of the second cylinder.

3. The air conditioner finned tube cleaning equipment according to claim 2, characterized in that: The movable gripper includes a mounting part fixedly connected to the output end of the second cylinder, a fixed finger fixedly connected to the mounting part, and a movable finger movably connected to the mounting part. The mounting part has a mounting groove near the fixed finger, a spring is provided in the mounting groove, and a push column is provided in the spring. One end of the push column passes through the spring and is movably connected to the movable finger, and the other end is fixedly connected to the telescopic block.

4. The air conditioner finned tube cleaning equipment according to claim 1, characterized in that: The driving device includes a housing mounted on a frame base, a linear displacement driving mechanism disposed within the housing, and a first synchronous belt drive mechanism disposed on one side of the linear displacement driving mechanism. The linear displacement driving mechanism includes a second cylinder seat mounted on the frame base, a driving cylinder mounted on the second cylinder seat, and a third linear guide rail disposed on the output end of the driving cylinder mounted on the second cylinder seat. A rack is provided on the upper surface of the slider of the third linear guide rail, and a shaft seat is provided on one side of the linear guide rail. A rotating shaft is rotatably connected to the shaft seat. A gear is fixedly connected to one end of the rotating shaft, and the other end is fixedly connected to the driving wheel of the first synchronous belt drive mechanism. The gear meshes with the rack. One fixed clamping body is connected to the rack via a connector at one end near the driving mechanism, and the other fixed clamping body is fixedly connected to the synchronous belt via a connector at one end near the driving mechanism, so that the two fixed clamping bodies can maintain relative synchronous movement.

5. The air conditioner finned tube cleaning equipment according to claim 1, characterized in that: The cleaning device includes two movable cleaning mechanisms arranged opposite each other on the upper surface of the frame. Each movable cleaning mechanism includes a second servo motor arranged on one side of the top of the frame, a lead screw and nut mechanism connected to the output end of the second servo motor, a fourth linear guide rail arranged on the side of the top of the frame opposite to the lead screw and nut mechanism, a movable frame fixed on the upper surface of the nut of the lead screw and nut mechanism, and a reciprocating cleaning device fixed on the movable frame. The end of the movable frame away from the lead screw and nut mechanism is fixedly connected to the slider of the fourth linear guide rail for the second servo motor to drive the movable frame to make linear displacement.

6. The air conditioner finned tube cleaning equipment according to claim 5, characterized in that: The reciprocating cleaning device includes a fifth linear guide rail fixed on a movable frame, a second synchronous belt drive mechanism disposed on one side of the fifth linear guide rail, a mounting plate disposed on the slider of the fifth linear guide rail, a drive motor disposed on the mounting plate, a cleaning brush roller rotatably connected to the mounting plate on a fixed axis, and several nozzles fixed on one side of the cleaning brush roller. The main shaft of the drive wheel of the second synchronous belt drive mechanism is connected to a third servo motor. The synchronous belt of the second synchronous belt drive mechanism is fixedly connected to the slider of the fifth linear guide rail. The end face of the slider of the fifth linear guide rail opposite to the second synchronous belt drive mechanism is fixedly connected to the mounting plate. The output end of the drive motor is provided with a drive gear. The cleaning brush roller is provided with a driven gear at one end corresponding to the drive gear. The driven gear meshes with the drive gear to drive the motor to drive the cleaning brush roller to rotate on a fixed axis. The several nozzles are connected to an external cleaning liquid storage tank through a main pipeline. A pump assembly is installed on the end of the main pipeline near the external cleaning liquid storage tank.

7. The air conditioning finned tube cleaning equipment according to claim 1, characterized in that: Several V-shaped grooves are provided at the bottom center of the frame, and a drainage channel is provided at the bottom of the V-shaped grooves. The drainage channel is connected to the cleaning fluid recovery tank for the purpose of recovering the cleaning fluid.

8. The air conditioner finned tube cleaning equipment according to claim 1, characterized in that: Both the clamping surface of the fixed clamp and the arc-shaped clamping surface of the arc-shaped claw are provided with flexible material to protect the limiting part at the bottom of the finned tube to be cleaned from being pinched and damaged by the fixed clamp and the arc-shaped claw.

9. The air conditioning finned tube cleaning equipment according to claim 3, characterized in that: The clamping surfaces of the fixed finger, the movable finger, and the telescopic block are all provided with flexible material to protect the limiting part at the top of the finned tube to be cleaned from being damaged by the movable claw.

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