Hydraulic oil cylinder piston rod cleaning device

Abstract

The utility model discloses a hydraulic oil cylinder piston rod cleaning device, which belongs to the technical field of piston rod cleaning and comprises a cleaning platform, a fixing component, a cleaning mechanism and a driving component. The cleaning mechanism comprises a fixed sleeve, a rotating sleeve rotationally arranged at one end of the fixed sleeve, a cleaning sleeve detachably installed in the rotating sleeve and cleaning cloth arranged on the inner wall of the cleaning sleeve, a driving assembly used for driving the rotating sleeve to rotate is arranged on the fixed sleeve, and the piston rod is sleeved with the cleaning cloth; the driving assembly drives the fixing sleeve to move in the axial direction of the piston rod, an air collection cavity is formed in the end, opposite to the rotating sleeve, of the fixing sleeve, an air inlet pipe is connected to the fixing sleeve, and a plurality of air outlet holes communicated with the air inlet cavity are formed in the inner wall of the fixing sleeve. According to the cleaning device for the piston rod of the hydraulic oil cylinder, impurities are cleaned in a mode of combining pneumatic blowing and cleaning cloth wiping, and the cleaning effect of the impurities is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rod cleaning, and particularly to a cleaning device for a hydraulic cylinder piston rod. Background Art

[0002] A hydraulic cylinder is a linear reciprocating actuator. Its working principle is that hydraulic oil enters the cylinder barrel to push the piston to move, and then drives the piston rod to do telescopic motion. It can be seen that whether the piston rod can work properly will directly determine the working stability of the hydraulic cylinder. For manufacturers of hydraulic cylinders, when installing the piston rod into the cylinder barrel, it is necessary to clean the surface of the piston rod to remove dust and other impurities to prevent the impurities from being brought into the cylinder barrel and mixing with the hydraulic oil to form dirt, damaging the components of the hydraulic system. The traditional cleaning method is that workers manually blow the surface of the piston rod with a hand-held air gun. This method has been gradually abandoned due to low efficiency and uneven cleaning. Currently, the most common cleaning method is to use a cleaning device to clean the piston rod. For example, a cleaning device for a piston rod disclosed in the Chinese patent document with the publication number CN212959818U drives the support plate to move through a lead screw drive, so as to drive the cleaning groove to move at a constant speed, so as to achieve the purpose of automatic and uniform cleaning. However, this method can only blow some dust attached to the surface of the piston rod, and the cleaning effect on the stubborn impurities attached to the piston rod is not obvious. Therefore, the inventor has improved the cleaning device for the piston rod to improve the cleaning effect on the piston rod. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is that in the prior art, relying solely on the pneumatic blowing method to clean impurities has a poor cleaning effect. Based on this, it is necessary to provide a cleaning device for a hydraulic cylinder piston rod that can enhance the cleaning effect.

[0004] The technical solution adopted by the utility model to solve its technical problem is: a cleaning device for a hydraulic cylinder piston rod, including a cleaning platform, a fixing component, a cleaning mechanism and a driving component. The fixing component is arranged on the cleaning platform. The cleaning mechanism includes a fixing sleeve, a rotating sleeve rotatably arranged at one end of the fixing sleeve, a cleaning sleeve detachably installed in the rotating sleeve, and a cleaning cloth arranged on the inner wall of the cleaning sleeve. The fixing sleeve is provided with a driving component for driving the rotating sleeve to rotate. The cleaning cloth is sleeved on the piston rod. The driving component drives the fixing sleeve to move along the axial direction of the piston rod. A gas collecting cavity is arranged at one end of the fixing sleeve opposite to the rotating sleeve. An air inlet pipe is connected to the fixing sleeve. A plurality of air outlet holes communicating with the gas collecting cavity are arranged on the inner wall of the fixing sleeve.

[0005] Further, a chute is provided on the inner wall of the rotating sleeve, and a protrusion cooperating with the chute is provided on the outer wall of the cleaning sleeve. The chute includes a guiding groove arranged along the axial direction of the rotating sleeve and a clamping groove arranged along the circumferential direction of the rotating sleeve, and the guiding groove communicates with the clamping groove.

[0006] Further, when the protrusion is snapped into the clamping groove, the rotating direction is opposite to that of the rotating sleeve.

[0007] Further, a bearing is arranged between the rotating sleeve and the fixed sleeve.

[0008] Further, the driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is fixedly connected to the fixed sleeve, the driving gear is fixedly connected to the output shaft of the driving motor, the driven gear is fixedly sleeved outside the rotating sleeve, and the driven gear meshes with the driving gear.

[0009] Further, a stepped hole and a groove are respectively formed along the axial direction at the center and the edge of the side wall of one end of the fixed sleeve far away from the rotating sleeve. A sealing cover for sealing the groove is fixedly installed on one side of the fixed sleeve far away from the rotating sleeve. The gas collecting cavity is formed by a closed cavity jointly formed by the groove and the sealing cover, and the air outlet hole is arranged on the hole wall of the stepped hole.

[0010] Further, the air outlet hole is arranged obliquely, and the air outlet end of the air outlet hole is located on the side of the air inlet end of the air outlet hole far away from the rotating sleeve.

[0011] Further, the piston rod includes a rod body and a connecting sleeve arranged at one end of the rod body. The fixing assembly includes a connecting plate, a positioning column and a limiting plate. The connecting plate is vertically and fixedly connected to the cleaning platform, the positioning column is vertically and fixedly connected to the connecting plate, the limiting plate is fixedly connected to the connecting plate and is located on one side of the positioning column, and the side surface of the limiting plate close to the positioning column is attached to the outer side plane of the connecting sleeve.

[0012] Further, the driving assembly includes a lead screw motor and a lead screw. The lead screw motor is installed on the cleaning platform, the lead screw is fixedly connected to the output shaft of the lead screw motor, and the lead screw is in threaded connection with the fixed sleeve.

[0013] The beneficial effects of the present utility model are as follows: The hydraulic cylinder piston rod cleaning device of the present utility model adopts a combination of pneumatic purging and wiping with a cleaning cloth to clean the impurities on the surface of the piston rod, enhancing the cleaning effect. During the wiping process of the cleaning cloth, while moving along the axial direction of the piston rod, the cleaning cloth also rotates itself, thereby improving the cleaning strength of the cleaning cloth on the piston rod and making the cleaning more thorough. Brief Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a perspective view of the hydraulic cylinder piston rod of the cleaning device applicable to the present utility model;

[0016] Figure 2 is a perspective view of the hydraulic cylinder piston rod cleaning device of the present utility model;

[0017] Figure 3 is Figure 2 a partial enlarged view of the position A in the hydraulic cylinder piston rod cleaning device shown;

[0018] Figure 4 is Figure 2 a perspective view of another angle of the hydraulic cylinder piston rod cleaning device shown;

[0019] Figure 5 is Figure 4 a partial enlarged view of the position B in the hydraulic cylinder piston rod cleaning device shown;

[0020] Figure 6 is Figure 3 an exploded view of the connection structure of the rotating sleeve and the cleaning sleeve in ;

[0021] Figure 7 is Figure 6 an exploded view of another angle of the connection structure of the rotating sleeve and the cleaning sleeve in ;

[0022] Figure 8 is Figure 2 a top view of the exploded view of the connection structure of the rotating sleeve and the cleaning sleeve shown;

[0023] Figure 9 is Figure 8 a sectional view along D-D of the hydraulic cylinder piston rod cleaning device shown;

[0024] Figure 10 is Figure 9 a partial enlarged view of the position C in the hydraulic cylinder piston rod cleaning device shown.

[0025] In the figure: 10, piston rod; 11, rod body; 12, connecting sleeve; 1, cleaning platform; 101, chute; 2, fixing component; 21, connecting plate; 22, positioning post; 23, limiting plate; 3, cleaning mechanism; 31, fixing sleeve; 311, gas collecting cavity; 312, air outlet hole; 313, stepped hole; 314, sealing cover; 32, rotating sleeve; 321, chute; 3211, guide groove; 3212, clamping groove; 33, cleaning sleeve; 331, protrusion; 34, cleaning cloth; 35, air inlet pipe; 36, bearing; 37, driving component; 371, driving motor; 372, driving gear; 373, driven gear; 41, lead screw motor; 42, lead screw. Detailed implementation mode

[0026] Now, the present utility model will be described in detail with reference to the attached drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic manner, so it only shows the components related to the present utility model.

[0027] Please refer to Figures 1 - 10 , the present utility model provides a hydraulic cylinder piston rod cleaning device for cleaning the piston rod 10. The piston rod 10 includes a rod body 11 and a connecting sleeve 12 connected to one end of the rod body 11. The hydraulic cylinder piston rod cleaning device includes a cleaning platform 1, a fixing component 2, a cleaning mechanism 3 and a driving component 4. The piston rod 10 to be cleaned is fixedly installed on the fixing component 2. The cleaning mechanism 3 is sleeved on the piston rod 10. The driving component 4 is used to drive the cleaning mechanism 3 to move axially along the piston rod 10 to clean the surface of the piston rod 10.

[0028] Please refer to Figure 1 , Figure 4 , for the piston rod 10 of the hydraulic cylinder piston rod cleaning device applicable to the present utility model, the outer surface of the connecting sleeve 12 close to the rod body 10 is set as a plane. The fixing component 2 includes a connecting plate 21, a positioning post 22 and a limiting plate 23. The connecting plate 21 is vertically and fixedly connected to the upper surface of the cleaning platform 1. The positioning post 22 is vertically and fixedly connected to the connecting plate 21. The limiting plate 23 is fixedly connected to the connecting plate 21 and is located on one side of the positioning post 22. When fixing the piston rod 10, the piston rod 10 is inserted into the positioning post 22 in a matching manner, and the side surface of the limiting plate 23 close to the positioning post 22 is kept in contact with the outer plane of the connecting sleeve 12. When the piston rod 10 is inserted until the connecting sleeve 12 abuts against the connecting plate 21, the piston rod 10 is installed in place. At this time, under the combined action of the positioning post 22 and the limiting plate 23, the piston rod 10 cannot rotate around the positioning post 22, and the piston rod 10 is in a horizontal state, realizing the positioning function of the piston rod 10 and facilitating the quick fixing of the piston rod 10.

[0029] Please refer to Figure 3 , Figure 5 andFigure 10 The cleaning mechanism 3 includes a fixed sleeve 31, a rotating sleeve 32, a cleaning sleeve 33 and a cleaning cloth 34. Both ends of the fixed sleeve 31 are through. The rotating sleeve 32 is coaxially arranged with the central through hole of the fixed sleeve 31. The rotating sleeve 32 is rotatably installed at one end of the fixed sleeve 31 close to the fixing component 2. The cleaning sleeve 33 is detachably and fixedly installed in the rotating sleeve 32. The cleaning cloth 34 is fixedly arranged on the inner wall of the cleaning sleeve 33. A gas collecting cavity 311 is provided at one end of the fixed sleeve 31 opposite to the rotating sleeve 32. An air inlet pipe 35 for supplying high-pressure gas to the gas collecting cavity 311 is connected to the fixed sleeve 31. The air inlet pipe 35 is connected to a blower. When the blower works, high-pressure gas can be input into the air inlet pipe 35. A plurality of air outlet holes 312 communicating with the gas collecting cavity 311 are formed on the inner wall of the fixed sleeve 31.

[0030] During use, the entire cleaning mechanism 3 is sleeved outside the piston rod 10, and the cleaning mechanism 3 is located at one end of the piston rod 10 close to the fixing component 2. The piston rod 10 penetrates through the cleaning sleeve 33 and the fixed sleeve 31. Then, under the action of the driving component 4, the fixed sleeve 31 on the cleaning mechanism 3 is driven to move axially along the piston rod 10. During this process, the high-pressure gas entering the gas collecting cavity 311 through the air inlet pipe 35 passes through the air outlet holes 312 and is sprayed on the surface of the piston rod 10 to blow off some dust and other impurities attached to the surface of the piston rod 10. At the same time, the cleaning cloth 34 rotates and moves axially along the piston rod 10 under the drive of the rotating sleeve 32. The cleaning cloth 34 is in full contact with the surface of the piston rod 10. Under the combined action of the rotation and movement of the cleaning cloth 34, the impurities attached to the surface of the piston rod 10 can be further wiped off, thereby improving the cleaning effect.

[0031] In order to facilitate the smooth rotation of the rotating sleeve 32 relative to the fixed sleeve 31, a bearing 36 is provided between the rotating sleeve 32 and the fixed sleeve 31. Among them, the outer ring of the bearing 36 is fixedly connected to the fixed sleeve 31, and the inner ring of the bearing 36 is fixedly connected to the rotating sleeve 32.

[0032] Please refer to Figure 6 、 Figure 7, As a preferred embodiment, both the rotating sleeve 32 and the cleaning sleeve 33 are in a cylindrical structure. They cooperate with each other. When the cleaning sleeve 33 is inserted into the rotating sleeve 32, the outer wall of the cleaning sleeve 33 fits against the inner wall of the rotating sleeve 32. A chute 321 is formed on the inner wall of the rotating sleeve 32, and a protrusion 331 is provided on the outer wall of the cleaning sleeve 33. The protrusion 331 is slidably connected to the chute 321. The chute 321 includes a guiding groove 3211 and a clamping groove 3212 that communicate with each other. The guiding groove 3211 is arranged along the axial direction of the rotating sleeve 32, and the clamping groove 3212 is arranged along the circumferential direction of the rotating sleeve 32. One end of the guiding groove 3211 penetrates through one side wall of the rotating sleeve 32, and the other end of the guiding groove 3211 communicates with the clamping groove 3212. When the cleaning sleeve 33 is connected to the rotating sleeve 32, the protrusion 331 enters the guiding groove 3211 from one end of the guiding groove 3211. When it moves to the other end of the guiding groove 3211, the cleaning sleeve 33 is rotated relative to the rotating sleeve 32, so that the protrusion 331 can slide into the clamping groove 3212 and finally be clamped into the clamping groove 3212. In this way, the user can install the cleaning sleeve 33 on the rotating sleeve 32 through sliding and rotating operations in sequence. The operation is simple, rapid installation can be achieved, and it is convenient to replace and clean the cleaning cloth 34.

[0033] In addition, as a preferred embodiment, the rotating direction of the protrusion 331 when it is clamped into the clamping groove 3212 is opposite to the rotating direction of the rotating sleeve 32. In this way, the situation that the protrusion 331 easily disengages from the clamping groove 3212 during work can be effectively prevented, ensuring the connection stability between the cleaning sleeve 33 and the rotating sleeve 32.

[0034] As a preferred embodiment, the cleaning mechanism 3 further includes a driving assembly 37 for driving the rotating sleeve 32 to rotate relative to the fixed sleeve 31. The driving assembly 37 includes a driving motor 371, a driving gear 372 and a driven gear 373. The driving motor 371 is fixedly connected to the fixed sleeve 31, the driving gear 372 is fixedly connected to the output shaft of the driving motor 371, the driven gear 373 is fixedly sleeved outside the rotating sleeve 32, and the driven gear 373 meshes with the driving gear 372. During work, the driving motor 371 is started to drive the driving gear 372 to rotate, and then the driven gear 373 is driven to rotate to drive the rotating sleeve 32 to rotate relative to the fixed sleeve 31.

[0035] As a preferred embodiment, a stepped hole 313 and a groove (not shown in the figure) are respectively formed in the center and the edge of the side wall of one end of the fixed sleeve 31 far away from the rotating sleeve 32 along the axial direction. A sealing cover 314 is fixedly installed on the side of the fixed sleeve 31 far away from the rotating sleeve 32 through bolts. The sealing cover 314 seals the groove. The closed cavity formed by the groove and the sealing cover 314 constitutes a gas collecting cavity 311. An air outlet hole 312 is formed in the hole wall of the stepped hole 313. In this embodiment, a plurality of air outlet holes 312 are uniformly arranged on the hole wall of the stepped hole 313 along the circumferential direction. In addition, the air outlet hole 312 is inclined, and the air outlet end of the air outlet hole 312 is located on the side of the air inlet end of the air outlet hole 312 far away from the rotating sleeve 32.

[0036] In this embodiment, the driving assembly 4 includes a lead screw motor 41 and a lead screw 42. A chute 101 is formed on the upper surface of the cleaning platform 1. The lower end of the fixed sleeve 31 is slidably connected to the chute 101. The body of the lead screw motor 41 is fixedly installed on the side wall of the cleaning platform 1. The lead screw 42 is fixedly connected to the output shaft of the lead screw motor 41. The lead screw 42 extends into the chute 101 and is threadedly connected to the bottom of the fixed sleeve 31. During operation, the lead screw motor 41 is started to drive the lead screw 42 to rotate, and then drive the fixed sleeve 31 to move along the axial direction of the piston rod 10. In this embodiment, the driving assembly 4 drives the cleaning mechanism 3 to move by means of lead screw transmission. It can be understood that in other embodiments, the driving assembly 4 may also include a cylinder. During use, the fixed sleeve 31 is driven to move by the cylinder, so as to drive the cleaning mechanism 3 to move. The specific structure of the driving assembly 4 is not limited, as long as it can drive the cleaning mechanism 3 to reciprocate along the axial direction of the piston rod 10.

[0037] The hydraulic cylinder piston rod cleaning device of the present utility model adopts a combination of pneumatic purging and wiping with the cleaning cloth 34 to clean the impurities on the surface of the piston rod 10, enhancing the cleaning effect. During the wiping process of the cleaning cloth 34, the cleaning cloth 34 rotates while moving along the axial direction of the piston rod 10, thereby improving the cleaning strength of the cleaning cloth 34 on the piston rod 10 and making the cleaning more thorough.

[0038] Inspired by the above ideal embodiments according to the present utility model, through the above description, relevant staff can make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hydraulic cylinder piston rod cleaning device, comprising a cleaning platform, a fixing assembly, a cleaning mechanism and a driving assembly, wherein the fixing assembly is arranged on the cleaning platform, and is characterized in that: The cleaning mechanism includes a fixed sleeve, a rotating sleeve rotatably arranged at one end of the fixed sleeve, a cleaning sleeve detachably mounted in the rotating sleeve, and a cleaning cloth arranged on the inner wall of the cleaning sleeve, the fixed sleeve is provided with a driving component for driving the rotating sleeve to rotate, the cleaning cloth sleeve is arranged on the piston rod, the driving component drives the fixed sleeve to move along the axial direction of the piston rod, an air collecting cavity is provided on one end of the fixed sleeve opposite to the rotating sleeve, an air inlet pipe is connected to the fixed sleeve, and a plurality of air outlet holes connected to the air collecting cavity are opened on the inner wall of the fixed sleeve.

2. The hydraulic cylinder piston rod cleaning device according to claim 1, characterized in that: A slide groove is provided on the inner wall of the rotating sleeve, and a protrusion cooperating with the slide groove is provided on the outer wall of the cleaning sleeve. The slide groove includes a guide groove arranged along the axial direction of the rotating sleeve and a clamping groove arranged along the circumferential direction of the rotating sleeve, and the guide groove is connected with the clamping groove.

3. The hydraulic cylinder piston rod cleaning device according to claim 2, characterized in that: The rotation direction of the protrusion when it is inserted into the slot is opposite to the rotation direction of the rotating sleeve.

4. The hydraulic cylinder piston rod cleaning device according to claim 1, characterized in that: A bearing is arranged between the rotating sleeve and the fixed sleeve.

5. The hydraulic cylinder piston rod cleaning device according to claim 1 or 4, characterized in that: The driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is fixedly connected to the fixed sleeve, the driving gear is fixedly connected to the output shaft of the driving motor, the driven gear fixed sleeve is arranged outside the rotating sleeve, and the driven gear is meshed with the driving gear.

6. The hydraulic cylinder piston rod cleaning device according to claim 1, characterized in that: A step hole and a groove are respectively provided in the center and the edge of the side wall of one end of the fixed sleeve away from the rotating sleeve along the axial direction; a sealing cover for sealing the groove is fixedly installed on the side of the fixed sleeve away from the rotating sleeve; the gas collecting cavity is composed of a closed cavity formed by the groove and the sealing cover; and the air outlet is arranged on the hole wall of the step hole.

7. The hydraulic cylinder piston rod cleaning device according to claim 6, characterized in that: The air outlet hole is arranged obliquely, and the air outlet end of the air outlet hole is located at a side of the air inlet end of the air outlet hole away from the rotating sleeve.

8. The hydraulic cylinder piston rod cleaning device according to claim 1, characterized in that: The piston rod includes a rod body and a connecting sleeve arranged at one end of the rod body, the fixing assembly includes a connecting plate, a positioning column and a limit plate, the connecting plate is vertically fixedly connected to the cleaning platform, the positioning column is vertically fixedly connected to the connecting plate, the limit plate is fixedly connected to the connecting plate and is located on one side of the positioning column, and a side surface of the limit plate close to the positioning column is in contact with the outer plane on the connecting sleeve.

9. The hydraulic cylinder piston rod cleaning device according to claim 1, characterized in that: The driving assembly comprises a screw motor and a screw, wherein the screw motor is mounted on the cleaning platform, the screw is fixedly connected to the output shaft of the screw motor, and the screw is threadedly connected to the fixed sleeve.

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