Hydraulic rod output shaft surface cleaning device for telescopic boom loader

Abstract

The utility model discloses a hydraulic rod output shaft surface cleaning device for a telescopic boom loader, which relates to the technical field of loaders and particularly comprises a passive telescopic structure fixed outside a hydraulic cylinder body of a hydraulic rod, a cleaning structure connected with the passive telescopic structure, an ion fan, a water tank and a sewage pump. The passive telescopic structure comprises a fixing ring fixed to a hydraulic cylinder body of the hydraulic rod. According to the hydraulic rod output shaft surface cleaning device for the telescopic boom loader, through the arrangement of the cleaning structure, floating ash adhering to the surface of a hydraulic rod output shaft can be removed in an air blowing mode, the floating ash is separated from the hydraulic rod output shaft, and friction between impurities and the surface of the hydraulic rod output shaft is avoided when the hydraulic rod output shaft shrinks; and through a wiping structure, a drying structure and a spraying and scrubbing structure, stubborn stains on the surface of the hydraulic rod output shaft can be cleaned, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of loader, concretely is a telescopic arm loader hydraulic rod output shaft surface cleaning device. BACKGROUND

[0002] The movable arm of the telescopic arm loader comprises a basic arm and a telescopic arm sliding on the basic arm, and a telescopic arm oil cylinder is arranged between the telescopic arm and the basic arm to push the telescopic arm to slide on the basic arm. When the telescopic arm loader is working, dust and other impurities are easily attached to the surface of the output shaft of the hydraulic rod. If the attached impurities are not treated, the external dust will be brought into the sliding connection between the sealing cover and the hydraulic rod when the output shaft of the hydraulic rod is retracted, causing wear of the sliding connection and leading to oil leakage. To solve this problem, some devices for cleaning the surface of the output shaft of the hydraulic rod are disclosed in the prior art, such as the device for cleaning the output end of the hydraulic rod of the telescopic arm loader disclosed in the authorized patent with the application number CN202221373482.1. However, the above-mentioned scheme uses cleaning cotton to wipe the body of the hydraulic rod when in use, but the cleaning cotton gathers the impurities on the surface of the output shaft of the hydraulic rod together when in use. During the retraction of the hydraulic rod, friction will occur between the output shaft of the hydraulic rod and the gathered impurities, accelerating the wear rate of the output shaft of the hydraulic rod. It is difficult to remove stubborn stains attached to the surface of the output shaft of the hydraulic rod by wiping alone. Moreover, the cleaning cotton occupies part of the space of the output shaft of the hydraulic rod, which is not conducive to the retraction of the hydraulic rod. Therefore, the present application proposes a telescopic arm loader hydraulic rod output shaft surface cleaning device. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a telescopic arm loader hydraulic rod output shaft surface cleaning device, solved above -mentioned background art only by cleaning cotton to the hydraulic rod delivery axle wipe clean, it is difficult to remove stubborn stains attached to the surface of the output shaft of the hydraulic rod, and the impurities attached to the surface of the output shaft of the hydraulic rod are gathered by the cleaning cotton, and the output shaft of the hydraulic rod will be rubbed with the impurities during the retraction process, accelerating the wear of the output shaft of the hydraulic rod. Moreover, the cleaning cotton occupies part of the space of the output shaft of the hydraulic rod, which is not conducive to the retraction of the hydraulic rod.

[0004] The utility model provides the following technical scheme: a telescopic arm loader hydraulic rod output shaft surface cleaning device, including the passive telescopic structure of fixed in the hydraulic cylinder body outside of hydraulic rod, with passive telescopic structure connects the cleaning structure, ion fan, water tank and sewage pump, passive telescopic structure includes with the fixed ring of fixed hydraulic cylinder body of hydraulic rod, the side close to the output shaft of hydraulic rod of fixed ring evenly fixed connection has spring and positioning rod, the outer ring of positioning rod is movably sleeved with guide pipe, the other end of guide pipe and spring both is connected with cleaning structure;

[0005] The cleaning structure comprises a fixed pipe fixed with the guide pipe and the spring, the fixed pipe is movably connected with the hydraulic rod, an inner cavity of the fixed pipe is sequentially provided with a wiping structure, a drying structure, a spray brushing structure and a dust blowing structure, the wiping structure is located at one end of the fixed pipe close to the spring, the wiping structure comprises two moving rings connected with the inner wall of the fixed pipe through telescopic pipes, and the inner wall of the moving ring is fixedly provided with wiping cotton matched with the output shaft of the hydraulic rod; the drying structure comprises a blowing ring fixedly connected with the inner wall of the fixed pipe, and the blowing ring is connected with the air outlet end of the ion fan through an air outlet pipe one; the spray brushing structure comprises a net frame movably connected with the inner cavity of the fixed pipe, a spray plate fixedly connected with the top of the inner cavity of the fixed pipe and a sewage pipe fixedly connected with the bottom of the inner cavity of the fixed pipe, one end of the sewage pipe is connected with the liquid inlet end of the sewage pump, the spray plate is connected with the water tank through a clean water pump, and the inner cavities of the net frame are both connected with another moving ring through another telescopic pipe, the inner wall of the other moving ring is fixedly provided with a cleaning brush; the dust blowing structure comprises a rotating ring movably connected with the inner cavity of the fixed pipe, a pressure sensor and a dust blowing nozzle fixedly connected with the outer side of the rotating ring, the inner cavity of the rotating ring is connected with the air outlet end of the ion fan through an air outlet pipe two, and the rotating ring is fixedly connected with the net frame.

[0006] Preferably, a groove is arranged at the top of the inner cavity of the rotating ring, one end of an air outlet pipe two is fixedly connected with the fixed pipe away from the fixed ring, the other end of the air outlet pipe two is extended into the inner cavity of the groove.

[0007] Preferably, a gear ring is fixedly connected with the outer ring of the rotating ring, the gear ring is movably connected with the inner cavity of the fixed pipe, one side of the fixed pipe is fixedly connected with a rotating motor, the output shaft of the rotating motor is fixedly connected with a gear, and the gear is engaged with the gear ring.

[0008] Preferably, electromagnets one are fixedly arranged at the two sides of the end of the inner cavity of the fixed pipe close to the fixed ring and the two sides of the middle of the inner cavity of the fixed pipe, and the electromagnets one are magnetically attracted to the moving ring when the electromagnets one are in an electrified state.

[0009] Preferably, the inner diameter of the cleaning brush and the inner diameter of the wiping cotton are matched with the outer diameter of the output shaft of the hydraulic rod.

[0010] Preferably, the liquid inlet end of the clean water pump is extended to the bottom end of the inner cavity of the water tank through a water inlet pipe, and the liquid outlet end of the clean water pump is connected with the inner cavity of the spray plate through a water outlet pipe.

[0011] Preferably, a reset spring is arranged in the middle of the inner cavity of the telescopic pipe, one end of the reset spring is fixedly connected with the telescopic pipe, and the other end of the reset spring is fixedly connected with the moving ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The hydraulic rod output shaft surface cleaning device for telescopic arm loader, through the setting of passive telescopic structure, the position of the cleaning structure can be changed, the cleaning structure can avoid affecting the contraction of the hydraulic rod output shaft when the hydraulic rod is contracted, and the cleaning structure can be sleeved on the hydraulic rod output shaft when the hydraulic rod output shaft is elongated, so that the cleaning structure realizes the cleaning of the hydraulic rod output shaft when the hydraulic rod output shaft is contracted.

[0014] 2. The hydraulic rod output shaft surface cleaning device for telescopic arm loader, through the setting of the cleaning structure, the device can remove floating dust adhered to the surface of the hydraulic rod output shaft in the form of blowing, so as to separate the floating dust from the hydraulic rod output shaft and avoid impurities rubbing against the surface of the hydraulic rod output shaft when the hydraulic rod output shaft is contracted; and through the wiping structure, the drying structure and the spraying and brushing structure, the device can clean stubborn stains on the surface of the hydraulic rod output shaft, thereby improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the utility model;

[0016] Figure 2 It is a back view of the structure of the utility model; Figure 1

[0017] Figure 3 It is a cleaning structure schematic view of the structure of the utility model;

[0018] Figure 4 It is an explosion schematic view of the structure of the utility model; Figure 4

[0019] Figure 5 It is a sectional view of the structure of the utility model; Figure 4

[0020] Figure 6 It is a fixed pipe sectional view of the structure of the utility model;

[0021] Figure 7 It is a moving ring and wiping cotton connection schematic view of the structure of the utility model.

[0022] In the drawing: 1, fixed pipe; 2, water tank; 3, clean water pump; 4, ion fan; 5, sewage pump; 6, sewage pipe; 7, air outlet pipe two; 8, water outlet pipe; 9, air outlet pipe one; 10, guide pipe; 11, spring; 12, rotating ring; 13, dust blowing nozzle; 14, telescopic pipe; 15, cleaning brush; 16, net frame; 17, spraying plate; 18, rotary motor; 19, gear; 20, electromagnet one; 21, air blowing ring; 22, wiping cotton; 23, pressure sensor; 24, moving ring; 25, fixed ring. DETAILED DESCRIPTION ​​​

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] The utility model provides a kind of hydraulic rod output shaft surface cleaning device for telescopic boom loader, including the passive telescopic structure being fixed in the hydraulic cylinder body outside of hydraulic rod, with the cleaning structure being connected with passive telescopic structure, ion fan 4, water tank 2, clean water pump 3 and sewage pump 5.Passive application structure includes the fixed ring 25 being fixed with the hydraulic cylinder body of hydraulic rod, the side close to the output shaft of hydraulic rod of fixed ring 25 is uniformly fixedly connected with spring 11 and positioning rod, the outer ring of positioning rod movably sleeve joint has guide pipe 10, the other end of guide pipe 10 and spring 11 both is connected with cleaning structure, positioning rod and guide pipe 10 are formed into telescopic pipe structure, cleaning structure can be moved towards the direction where fixed ring 25 is located under external force extrusion, the restriction to cleaning structure is released, under the action of spring 11 resilience, cleaning structure can be reset, cleaning structure can drive guide pipe 10 to move when moving.

[0025] Cleaning structure includes fixed pipe 1, the other end of guide pipe 10 and spring 11 both is movably connected with fixed pipe 1, and cleaning structure is in the state of movably connected with hydraulic rod.The inner chamber of fixed pipe 1 is sequentially provided with wiping structure, drying structure, spray brush washing structure and dust blowing structure, and wiping structure is located at the end of the inner chamber of fixed pipe 1 close to spring 11.

[0026] Dust blowing structure includes the rotating ring 12 movably connected with the inner chamber of fixed pipe 1, the outer ring of one end of rotating ring 12 is fixedly connected with gear ring, one side of fixed pipe 1 is fixedly connected with rotating motor 18, the output shaft end of rotating motor 18 is fixedly connected with gear 19 through speed reducer, gear 19 is engaged with gear ring, by the setting of rotating motor 18, the rotation of rotating motor 18 can drive the rotation of gear 19 fixedly connected with it, gear 19 can drive rotating ring 12 to rotate through the gear ring engaged with it.

[0027] The other end of rotating ring 12 is provided with slot, and the end away from fixed ring 25 of fixed pipe 1 is fixedly connected with air outlet pipe two 7, one end of air outlet pipe two 7 is fixedly connected with the air outlet end of ion fan 4, the other end of air outlet pipe two 7 extends into the inner chamber of slot, by the setting of slot, the airflow generated when ion fan 4 works can be pumped into the inner chamber of slot.

[0028] The outer side of the rotating ring 12 is uniformly fixedly connected with the dust blowing nozzle 13. The other through the dust blowing nozzle 13 can blow to the outer surface of the hydraulic rod output shaft. The gas blown by the dust blowing nozzle 13 can blow off the floating dust attached to the outer surface of the hydraulic rod output shaft, realizing the cleaning of the hydraulic rod output shaft.

[0029] The outer side of the rotating ring 12 is fixedly connected with the pressure sensor 23. Through the setting of the pressure sensor 23, it can be judged whether the cleaning structure is extruded by external force. When the cleaning structure is extruded, the wiping structure and the spray brush washing structure in the cleaning structure can move away from the hydraulic rod output shaft, facilitating the movement of the cleaning structure.

[0030] Through the above setting of the dust blowing structure, the device can clean the floating dust attached to the surface of the hydraulic rod output shaft through the blown gas flow, facilitating the contraction of the hydraulic rod.

[0031] The spray brush washing structure comprises a net frame 16 movably connected with the inner cavity of the fixed pipe 1. The net frame 16 is fixedly connected with the rotating ring 12. When the rotating ring 12 rotates, the rotating ring 12 can drive the net frame 16 to rotate.

[0032] The inner cavity of the net frame 16 is fixedly connected with the telescopic pipe 14 on both sides of the middle part. The other end of the telescopic pipe 14 is fixedly connected with the moving ring 24. The inner wall of the moving ring 24 is fixedly connected with the cleaning brush 15. The inner diameter of the cleaning brush 15 is matched with the outer diameter of the hydraulic rod output shaft. The middle part of the inner cavity of the telescopic pipe 14 is provided with a reset spring. One end of the reset spring is fixedly connected with the telescopic pipe. The other end of the reset spring is fixedly connected with the moving ring. Through the setting of the reset spring, the telescopic pipe 14 can be in the state of elongation. At this time, the moving rings 24 on both sides of the inner cavity of the net frame 16 can be in the state of contact. At this time, the cleaning brush 15 and the outer surface of the hydraulic rod output shaft are in the state of close adhesion, which can realize the brushing of the outer surface of the hydraulic rod output shaft.

[0033] The spray brush washing structure further comprises a spray plate 17. The spray plate 17 is fixedly connected with the top of the inner cavity of the fixed pipe 1. The inner cavity of the spray plate 17 is connected with the water tank 2 through the clean water pump 3. The liquid inlet end of the clean water pump 3 extends to the bottom end of the inner cavity of the water tank 2 through the water inlet pipe. The liquid outlet end of the clean water pump 3 is connected with the inner cavity of the spray plate 17 through the water outlet pipe 8. Through the setting of the clean water pump 3, the working of the clean water pump 3 can pump the cleaning water in the water tank 2 into the inner cavity of the spray plate 17. The cleaning water in the spray plate 17 is uniformly sprayed on the outer surface of the hydraulic rod output shaft through the water spraying holes arranged at the bottom of the inner cavity of the spray plate 17, which facilitates the cleaning brush to scrape off the stubborn stains adhered to the surface of the hydraulic rod output shaft.

[0034] The spray brush washing structure further comprises a sewage pipe 6. The sewage pipe 6 is fixedly connected with the bottom of the inner cavity of the fixed pipe 1. The other end of the sewage pipe 6 is connected with the liquid inlet end of the sewage pump 5. When the sewage pump 5 works, the sewage generated in the brushing process can be pumped away by the sewage pump 5, avoiding the pollution of the hydraulic rod by the sewage.

[0035] From the above description, it can be known that the cleaning device can clean the surface of the hydraulic rod output shaft by blowing dust, spraying and brushing, or a combination of blowing dust and spraying and brushing, thereby improving the practicability of the device.

[0036] The drying structure includes a blowing ring 21 fixedly connected to the inner wall of the fixed tube 1. The blowing ring 21 is connected to the air outlet end of the ion fan 4 through an air outlet pipe 1. The ion fan 4 is arranged. When the ion fan 4 works, the airflow discharged from the air outlet end of the ion fan 4 can enter the inner cavity of the blowing ring 21 through the air outlet pipe 1. The airflow in the inner cavity of the blowing ring 21 can be blown to the hydraulic rod output shaft through the blowing holes arranged on the inner wall thereof, so as to preliminarily dry the hydraulic rod output shaft.

[0037] The wiping structure includes two other moving rings 24 connected to the inner wall of the fixed tube 1 through another telescopic pipe 14. The two sides of the inner cavity of the fixed tube 1 are fixed with the other moving rings 24. The inner wall of the moving ring 24 is fixed with the wiping cotton 22 matched with the hydraulic rod output shaft. The inner diameter of the wiping cotton 22 is matched with the outer diameter of the hydraulic rod output shaft. The inner cavity of the other telescopic pipe 14 is provided with another reset spring. One end of the other reset spring is fixedly connected to the other telescopic pipe 14. The other end of the other reset spring is fixedly connected to the other moving ring 24. Through the arrangement of the reset spring, the wiping cotton 22 can be closely attached to the outer surface of the hydraulic rod output shaft, so as to facilitate the wiping of the outer surface of the hydraulic rod output shaft by the wiping cotton 22, and improve the drying effect of the hydraulic rod output shaft.

[0038] The two sides of the end of the inner cavity of the fixed tube 1 close to the fixed ring 25 and the two sides of the middle part of the inner cavity thereof are fixed with electromagnets 20. When the electromagnets 20 are in an energized state, the electromagnets 20 are magnetically attracted to the moving ring 24. In some embodiments of the present application, the material of the moving ring 24 is metal iron. Through the arrangement of the electromagnets 20, the on-off of the electromagnets 20 can change the position of the moving ring 24. When the pressure sensor 23 senses the pressure, the electromagnets 20 are in an energized state. Under the action of the electromagnets 20, the two cleaning brushes or the two wiping cottons 22 can be separated, and the distance between the two cleaning brushes and the distance between the two wiping cottons 22 are both greater than the outer diameter of the hydraulic rod, so as to facilitate the movement of the cleaning structure.

[0039] In some embodiments of the present application, the water tank 2 can be fixed on the telescopic arm loader. The top of the water tank 2 is fixed with a clean water pump 3. The ion fan 4 and the sewage pump 5 can be fixed on the fixed tube 1. The air inlet end of the ion fan 4 is fixed with a dust filter screen.

[0040] The electric appliance elements involved in the present application are all prior art, and the connecting mode thereof is known to those skilled in the art. All the electric appliance elements in the present application are connected with the power supply thereof through wires by those skilled in the art, and a suitable controller is selected according to the actual situation to meet the control requirement. The specific connection and control sequence are described below. The electric appliance elements are sequentially connected in operation, and the detailed connection means is a common technology in the art. The working principle and process are mainly introduced below, and the electric appliance control is not described.

[0041] In summary: the telescopic boom loader hydraulic rod output shaft surface cleaning device uses, telescopic boom loader on the hydraulic rod is in the elongation state, under the action of spring 11 resilience, cleaning structure gradually away from the fixed ring 25, so that the cleaning structure can be set on the hydraulic rod output shaft, the hydraulic rod output shaft is in the contraction state, ion fan 4 and rotary motor 18 are all working, the working of rotary motor 18 makes that the dust blowing nozzle 13 can rotate, and the dust blowing nozzle 13 is convenient for blowing dust, the working of ion fan 4 makes that the dust blowing nozzle 13 and the air ring 21 all spray the airflow with a large number of positive and negative ions, the airflow sprayed by the dust blowing nozzle 13 and the air ring 21 can blow off the dust on the surface of the hydraulic rod output shaft, and the contraction of the hydraulic rod output shaft is facilitated, and if the hydraulic rod output shaft surface has stubborn stains that need to be cleaned, the water pump 3 and the sewage pump 5 are all working in the process of working of the ion fan 4 and the rotary motor 18, the working of the water pump 3 pumps the water in the water tank 2 into the inner cavity of the spray plate 17, the water in the spray plate 17 is uniformly sprayed on the outer surface of the hydraulic rod output shaft, the cleaning brush 15 can brush the stubborn stains, the sewage generated by brushing is pumped away by the sewage pump 5, the airflow sprayed by the air ring 21 can blow dry the cleaned water stains, and the wiping cotton further wipes the water stains. If the cleaning structure is extruded, the electromagnet 20 is in the electrified state, so that the two cleaning brushes or the two wiping cottons 22 can be separated, so that the cleaning structure can move on the hydraulic cylinder of the hydraulic rod.

[0042] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional models in the prior art, which will not be described in detail here, the contents not described in detail in the specification belong to the prior art known to the person skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning the surface of a hydraulic rod output shaft for a telescopic arm loader, comprising a passive telescopic structure fixed to the outside of a hydraulic cylinder of the hydraulic rod, a cleaning structure connected to the passive telescopic structure, an ion blower (4), a water tank (2) and a sewage pump (5), characterized in that: The passive telescopic structure comprises a fixing ring (25) fixed to the hydraulic cylinder of the hydraulic rod, a spring (11) and a positioning rod are evenly fixedly connected to the fixing ring (25) on one side close to the output shaft of the hydraulic rod, a guide tube (10) is movably sleeved on the outer ring of the positioning rod, and the other ends of both the guide tube (10) and the spring (11) are connected to the cleaning structure; The cleaning structure comprises a fixed tube (1) fixed to both the guide tube (10) and the spring (11), the fixed tube (1) being movably connected to the hydraulic rod, the inner cavity of the fixed tube (1) being provided with a wiping structure, a drying structure, a spraying and brushing structure and a dust blowing structure in sequence, the wiping structure being located at one end of the fixed tube (1) close to the spring (11), the wiping structure comprising two movable rings (24) connected to the inner wall of the fixed tube (1) via a telescopic tube (14), the inner wall of the movable ring (24) being fixed with a wiping cotton (22) adapted to the output shaft of the hydraulic rod; the drying structure comprising an air spray ring (21) fixedly connected to the inner wall of the fixed tube (1), the air spray ring (21) being connected to the air outlet end of the ion blower (4) via an air outlet pipe (9); the spraying and brushing structure comprising a mesh frame (16) movably connected to the inner cavity of the fixed tube (1) ), a spray plate (17) fixed to the top of the inner cavity of the fixed tube (1) and a sewage pipe (6) fixedly connected to the bottom of the inner cavity of the fixed tube (1), the other end of the sewage pipe (6) is connected to the liquid inlet end of the sewage pump (5), the spray plate (17) is connected to the water tank (2) through the clean water pump (3), both ends of the inner cavity of the net frame (16) are connected to another movable ring (24) through another telescopic tube (14), and a cleaning brush (15) is fixed to the inner wall of the other movable ring (24), the dust blowing structure comprises a rotating ring (12) movably connected to the inner cavity of the fixed tube (1), a pressure sensor (23) and a dust blowing nozzle (13) fixed to the outer side of the rotating ring (12), the inner cavity of the rotating ring (12) is connected to the air outlet end of the ion blower (4) through the air outlet pipe 2 (7), and the rotating ring (12) is fixedly connected to the net frame (16).

2. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: A slot is provided at the top of the inner cavity of the rotating ring (12); one end of the fixed tube (1) away from the fixed ring (25) is fixedly connected to the second air outlet pipe (7); one end of the second air outlet pipe (7) is fixedly connected to the air outlet end of the ion blower (4); and the other end of the second air outlet pipe (7) extends into the inner cavity of the slot.

3. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: The outer ring of the rotating ring (12) is fixedly connected to a gear ring, which is movably connected to the inner cavity of the fixed tube (1). One side of the fixed tube (1) is fixedly connected to a rotating motor (18), and the end of the output shaft of the rotating motor (18) is fixedly connected to a gear (19), which is meshed with the gear ring.

4. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: Electromagnets 1 (20) are fixed on both sides of the inner cavity of the fixed tube (1) at one end close to the fixed ring (25) and on both sides of the middle of the inner cavity. When the electromagnet 1 (20) is in an energized state, the electromagnet 1 (20) and the movable ring (24) are magnetically attracted to each other.

5. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: The inner diameter of the cleaning brush (15) and the inner diameter of the wiping cotton (22) are both adapted to the outer diameter of the hydraulic rod output shaft.

6. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: The liquid inlet end of the clean water pump (3) extends to the bottom end of the inner cavity of the water tank (2) through the water inlet pipe, and the liquid outlet end of the clean water pump (3) is connected to the inner cavity of the spray plate (17) through the water outlet pipe (8).

7. The surface cleaning device for the hydraulic rod output shaft of a telescopic arm loader according to claim 1, characterized in that: A return spring is provided in the middle of the inner cavity of the telescopic tube (14), one end of the return spring is fixedly connected to the telescopic tube (14), and the other end of the return spring is fixedly connected to the moving ring (24).

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