Engineering hydraulic oil cylinder with self-cleaning device

Abstract

The invention relates to the technical field of hydraulic oil cylinders, in particular to an engineering hydraulic oil cylinder with a self-cleaning device, which comprises a hydraulic oil cylinder body, a cleaning mechanism is arranged at the top end of a cylinder body of the hydraulic oil cylinder body, a water suction mechanism is arranged on the outer side of the hydraulic oil cylinder body, and a water tank is fixedly connected to the bottom end of the hydraulic oil cylinder body. The cleaning mechanism comprises an annular shell connected to the outer wall of the output end of the hydraulic oil cylinder body in a sleeving mode, and sponge making contact with the outer wall of the output end of the hydraulic oil cylinder body is arranged on the inner wall of the annular shell. According to the hydraulic oil cylinder, water in the water tank is sucked into the annular shell through the water suction mechanism and absorbed by the sponge, the sponge smears the absorbed water to the output end of the hydraulic oil cylinder body, dust on the outer wall of the output end can be cleaned away, and therefore the cylinder body can be prevented from being damaged, heat of the outer wall of the output end can be absorbed, and the service life of the hydraulic oil cylinder is prolonged. And the situation that the precision is reduced due to deformation caused by over-high temperature of the hydraulic oil cylinder body is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinders, in particular to an engineering hydraulic cylinder with a self-cleaning device. Background Art

[0002] Hydraulic cylinder is referred to as hydraulic cylinder. It is basically composed of cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device and exhaust device. Hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion. It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap. The movement is reliable and smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] Chinese Patent Publication No.: CN212775030U An engineering hydraulic cylinder with a self-cleaning device is provided with an electric telescopic rod. When the outer surface of the hydraulic cylinder body needs to be cleaned, the electric telescopic rod can drive the cleaning sponge to extend upward from the cleaning box to contact the outer surface of the hydraulic cylinder body, so that the outer surface of the hydraulic cylinder body can be repeatedly moved and wiped. It is convenient to use and has a high cleaning efficiency. At the same time, it can also avoid the safety hazards caused by manual wiping.

[0004] According to the above patent Figure 1 As shown, only the outer wall of the hydraulic cylinder can be wiped and cleaned. When the hydraulic cylinder is in use, in order to reduce the friction between the output end and the cylinder body, lubricating oil is usually applied to the outer wall of the output end. Since the lubricating oil is sticky, during the reciprocating movement of the output end, dust in the air adheres to the lubricating oil, and then is retracted by the output end, which will bring the dust into the cylinder body, causing the hydraulic oil in the cylinder body to contain dust, which will cause damage to the cylinder body if used for a long time. Summary of the invention

[0005] The object of the present invention is to provide an engineering hydraulic cylinder with a self-cleaning device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An engineering hydraulic cylinder with a self-cleaning device comprises a hydraulic cylinder body, a cleaning mechanism is arranged on the top of the cylinder body of the hydraulic cylinder body, a water absorption mechanism is arranged on the outside of the hydraulic cylinder body, and a water tank is fixedly connected to the bottom end of the hydraulic cylinder body. The cleaning mechanism comprises an annular shell sleeved on the outer wall of the output end of the hydraulic cylinder body, a sponge in contact with the outer wall of the output end of the hydraulic cylinder body is arranged on the inner wall of the annular shell, and a connecting pipe which is fixedly penetrated and fixed to the inside of the water tank is penetrated and fixed on the inner wall of the annular shell.

[0008] Furthermore, a gear ring is rotatably connected to the top of the outer wall of the cylinder body of the hydraulic cylinder body, a plurality of fixed blocks are fixed at equal angles in an annular manner on the top surface of the gear ring, a threaded barrel is fixedly connected to the top surface of the fixed block, the threaded barrel penetrates the inner bottom surface of the annular shell and extends to the interior of the annular shell, a plurality of bolts that penetrate and rotate with the inner top surface of the annular shell are arranged at equal angles in an annular manner on the top surface of the annular shell, and the bolts are screwed together with the threaded barrels at corresponding positions.

[0009] Preferably, the inner wall of the annular shell is penetrated by a through hole which is communicated with the inside of the annular shell and is used for placing the sponge.

[0010] Preferably, the outer wall of the threaded barrel is fixedly connected with a limiting ring.

[0011] Preferably, sealing gaskets are provided on the top surface of the limiting ring and the outer side of the thread of the bolt.

[0012] Furthermore, the water suction mechanism includes a plurality of sleeves which are distributed in a ring shape at equal angles and fixed to the water tank, a piston is slidably connected to the inside of the sleeve, a push rod which slides through the sleeve at a corresponding position is fixedly connected to the top surface of the piston, a water inlet pipe which is fixed to the inside of the water tank is fixedly penetrated and fixed to the inner wall of the sleeve, a water outlet pipe which is fixed to the inside of the annular shell is fixedly connected to the inner wall of the sleeve, and a one-way valve is arranged inside the water inlet pipe and the water outlet pipe.

[0013] Furthermore, a cylindrical block is fixedly connected to the top of the output end of the hydraulic cylinder body, and a fixing plate fixed to the push rod at a corresponding position is fixedly connected to the outer wall of the cylindrical block at a position corresponding to the push rod.

[0014] Furthermore, a connecting plate is fixedly connected between the top ends of the outer walls of two adjacent sleeves, a motor is fixedly connected to the bottom surface of the connecting plate, and an output end of the motor passes through the connecting plate and is fixedly connected to a gear meshing with the gear ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The device draws water from the water tank into the annular shell through a water absorption mechanism and is absorbed by a sponge. The sponge smears the absorbed water on the output end of the hydraulic cylinder body, which can clean the dust on the outer wall of the output end, thereby avoiding damage to the cylinder body, and can absorb the heat of the outer wall of the output end, thereby preventing the hydraulic cylinder body from being overheated and deformed, resulting in a decrease in accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the hydraulic cylinder body in the present invention;

[0019] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the present invention;

[0020] Figure 4 It is an enlarged view of point A in the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the water absorption mechanism in the present invention.

[0022] In the figure: 1. hydraulic cylinder body; 11. water tank; 12. gear ring; 2. cleaning mechanism; 21. annular shell; 22. sponge; 23. connecting pipe; 24. fixing block; 25. threaded cylinder; 26. limiting ring; 27. bolt; 3. water absorption mechanism; 31. sleeve; 32. push rod; 33. water outlet pipe; 34. water inlet pipe; 35. connecting plate; 36. motor; 37. gear; 38. cylindrical block; 39. fixing plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 In an embodiment of the present invention, an engineering hydraulic cylinder with a self-cleaning device includes a hydraulic cylinder body 1, a cleaning mechanism 2 is provided at the top of the cylinder body of the hydraulic cylinder body 1, a water absorption mechanism 3 is provided on the outside of the hydraulic cylinder body 1, and a water tank 11 is fixedly connected to the bottom end of the hydraulic cylinder body 1. The cleaning mechanism 2 includes an annular shell 21 sleeved on the outer wall of the output end of the hydraulic cylinder body 1, a sponge 22 in contact with the outer wall of the output end of the hydraulic cylinder body 1 is provided on the inner wall of the annular shell 21, and a connecting pipe 23 is fixedly passed through the inner wall of the annular shell 21 and passed through the inside of the water tank 11.

[0025] Specifically, first fill the water tank 11 with water. When the hydraulic cylinder is used for a long time, the outer wall of the output end thereof is usually coated with lubricating oil, and the lubricating oil is viscous and easily absorbs dust in the air onto the outer wall of the output end. At this time, a portion of the water in the water tank 11 can be pumped into the annular shell 21 through the water absorption mechanism 3. Since a sponge 22 is provided in the annular shell 21, the water in the annular shell 21 is absorbed by the sponge 22. Since the inner wall of the sponge 22 contacts the outer wall of the output end of the hydraulic cylinder body 1, the sponge 22 absorbed with water can clean the dust on the outer wall of the output end, thereby preventing the dust on the outer wall of the output end from entering the cylinder body of the hydraulic cylinder body 1, thereby avoiding Damage to the cylinder body. Since the output end of the hydraulic cylinder body 1 generates heat when it reciprocates, the water applied to the outer wall of the output end can cool it down and quickly evaporate the water on the outer wall to prevent the water from entering the interior of the cylinder body and mixing with the hydraulic oil. The device draws the water in the water tank 11 into the annular shell 21 through the water absorption mechanism 3 and is absorbed by the sponge 22. Then the sponge 22 applies the absorbed water to the output end of the hydraulic cylinder body 1, which can clean up the dust on the outer wall of the output end, thereby avoiding damage to the cylinder body and absorbing the heat of the outer wall of the output end to prevent the hydraulic cylinder body 1 from being overheated and deformed, resulting in a decrease in accuracy.

[0026] Embodiment 1

[0027] like Figure 3 and Figure 4 As shown, in this embodiment, the top end of the outer wall of the cylinder body of the hydraulic cylinder body 1 is rotatably connected with a gear ring 12, and a plurality of fixing blocks 24 are fixedly connected at equal angles on the top surface of the gear ring 12, and a threaded barrel 25 is fixedly connected to the top surface of the fixing block 24, and the threaded barrel 25 passes through the inner bottom surface of the annular shell 21 and extends to the inside of the annular shell 21, and a plurality of bolts 27 that pass through and rotate with the inner top surface of the annular shell 21 are arranged at equal angles on the top surface of the annular shell 21, and the bolts 27 are screwed and connected with the threaded barrel 25 at corresponding positions, and a through hole that is connected to the inside of the annular shell 21 and is used to place the sponge 22 is opened through the inner wall of the annular shell 21, and a limit ring 26 is fixedly connected to the outer wall of the threaded barrel 25, and a sealing gasket is arranged on the top surface of the limit ring 26 and the outer side of the thread of the bolt 27.

[0028] In this embodiment, the annular shell 21 can be removed from the plurality of threaded barrels 25 by removing the bolts 27 from the corresponding positions, thereby facilitating the disassembly and replacement of the sponge 22. Sealing gaskets are provided on the top surface of the limiting ring 26 and the outer side of the thread of the bolt 27 to prevent water in the annular shell 21 from flowing out.

[0029] Embodiment 2

[0030] like Figure 5As shown, in the present embodiment, the water suction mechanism 3 comprises a plurality of sleeves 31 which are distributed in an annular shape at equal angles and fixed to the water tank 11, a piston is slidably connected inside the sleeve 31, a push rod 32 which slides through the sleeve 31 at a corresponding position is fixedly connected to the top surface of the piston, a water inlet pipe 33 which is fixed to the inside of the water tank 11 is fixedly penetrated through the inner wall of the sleeve 31, a water outlet pipe 34 which is fixed to the inside of the annular shell 21 is fixedly connected to the inner wall of the sleeve 31, a one-way valve is arranged inside the water inlet pipe 33 and the water outlet pipe 34, a cylindrical block 38 is fixedly connected to the top end of the output end of the hydraulic cylinder body 1, a fixing plate 39 which is fixed to the push rod 32 at the corresponding position is fixedly connected to the outer wall of the cylindrical block 38.

[0031] In this embodiment, the output end of the hydraulic cylinder body 1 can be driven to move the cylindrical block 38, and the moving cylindrical block 38 can make multiple fixed plates 39 drive multiple push rods 32 to move, so that the piston in the sleeve 31 can move. Since a one-way valve is provided inside the water inlet pipe 33 and the water outlet pipe 34, the water in the water tank 11 can be drawn into the sleeve 31 when the piston moves upward, and the downward movement of the piston can press the water in the two sleeves 31 into the annular shell 21, so that the sponge 22 in the annular shell 21 can be replenished with water, which is convenient for the sponge 22 to apply water to the outer wall of the output end of the hydraulic cylinder body 1 and clean dust, and the output end can be cooled.

[0032] Embodiment 3

[0033] like Figure 5 As shown, in this embodiment, a connecting plate 35 is fixedly connected between the top ends of the outer walls of two adjacent sleeves 31, a motor 36 is fixedly connected to the bottom surface of the connecting plate 35, and an output end of the motor 36 passes through the connecting plate 35 and is fixedly connected to a gear 37 meshing with the ring gear 12.

[0034] In this embodiment, the gear 37 can drive the ring gear 12 to rotate by driving the motor 36. The rotating ring gear 12 drives the annular shell 21 and the sponge 22 to rotate on the outer wall of the output end of the hydraulic cylinder body 1. Then, through the movement of the output end, the sponge 22 can clean up the dust adsorbed on its outer wall.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An engineering hydraulic cylinder with a self-cleaning device, characterized in that: The invention comprises a hydraulic cylinder body (1), a cleaning mechanism (2) is arranged at the top of the cylinder body of the hydraulic cylinder body (1), a water absorbing mechanism (3) is arranged on the outside of the hydraulic cylinder body (1), the bottom end of the hydraulic cylinder body (1) is fixedly connected to a water tank (11), the cleaning mechanism (2) comprises an annular shell (21) sleeved on the outer wall of the output end of the hydraulic cylinder body (1), a sponge (22) in contact with the outer wall of the output end of the hydraulic cylinder body (1) is arranged on the inner wall of the annular shell (21), and a connecting pipe (23) is fixedly passed through the inner wall of the annular shell (21) and is fixedly passed through the inside of the water tank (11).

2. The engineering hydraulic cylinder with a self-cleaning device according to claim 1, characterized in that: The top of the outer wall of the hydraulic cylinder body (1) is rotatably connected to a gear ring (12); a plurality of fixing blocks (24) are fixedly connected to the top surface of the gear ring (12) at equal angles in an annular manner; a threaded barrel (25) is fixedly connected to the top surface of the fixing block (24); the threaded barrel (25) penetrates the inner bottom surface of the annular shell (21) and extends to the inside of the annular shell (21); a plurality of bolts (27) are rotatably connected to the top surface of the annular shell (21) at equal angles in an annular manner; the bolts (27) are screwed together and connected to the threaded barrel (25) at corresponding positions.

3. The engineering hydraulic cylinder with a self-cleaning device according to claim 2, characterized in that: The inner wall of the annular shell (21) is penetrated by a through hole which is communicated with the inside of the annular shell (21) and is used for placing the sponge (22).

4. The engineering hydraulic cylinder with a self-cleaning device according to claim 3, characterized in that: The outer wall of the threaded cylinder (25) is fixedly connected to a limiting ring (26).

5. The engineering hydraulic cylinder with a self-cleaning device according to claim 4, characterized in that: The top surface of the limiting ring (26) and the outer side of the thread of the bolt (27) are both provided with sealing gaskets.

6. The engineering hydraulic cylinder with a self-cleaning device according to claim 5, characterized in that: The water suction mechanism (3) comprises a plurality of sleeves (31) which are distributed in an annular shape at equal angles and fixed to the water tank (11); a piston is slidably connected inside the sleeve (31); a push rod (32) which slides through the sleeve (31) at a corresponding position is fixedly connected to the top surface of the piston; a water inlet pipe (33) which is fixed to the inside of the water tank (11) is fixedly penetrated through the inner wall of the sleeve (31); a water outlet pipe (34) which is fixed to the inside of the annular shell (21) is fixedly connected to the inner wall of the sleeve (31); and a one-way valve is provided inside the water inlet pipe (33) and the water outlet pipe (34).

7. The engineering hydraulic cylinder with a self-cleaning device according to claim 6, characterized in that: A cylindrical block (38) is fixedly connected to the top of the output end of the hydraulic cylinder body (1), and a fixing plate (39) fixed to the push rod (32) at a corresponding position is fixedly connected to the outer wall of the cylindrical block (38) at a position corresponding to the push rod (32).

8. The engineering hydraulic cylinder with a self-cleaning device according to claim 7, characterized in that: A connecting plate (35) is fixedly connected between the top ends of the outer walls of two adjacent sleeves (31), a motor (36) is fixedly connected to the bottom surface of the connecting plate (35), and an output end of the motor (36) passes through the connecting plate (35) and is fixedly connected to a gear (37) meshing with the gear ring (12).

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