Automatic oil injection device for hydraulic cylinder

Abstract

The utility model discloses an automatic oiling device for a hydraulic cylinder, which relates to the technical field of hydraulic cylinders and comprises a support, an oiling mechanism and a connecting mechanism are arranged in the support, and the connecting mechanism is positioned on the surface of the oiling mechanism. The oiling mechanism comprises a sealing assembly, a stirring assembly and an oiling assembly; the stirring assembly and the sealing assembly are located on the surface of the oiling assembly. The sealing assembly is positioned above the stirring assembly; the oil injection assembly comprises an oil storage barrel, an oil injection pipe is arranged below the oil storage barrel, and the top end face of the oil injection pipe fixedly penetrates through the bottom face of the oil storage barrel and extends into the oil storage barrel. Through the arrangement of the oil injection mechanism, the stirring assembly stirs lubricating oil or hydraulic oil in the oil storage barrel to avoid precipitation of the lubricating oil and improve the quality of the lubricating oil, the sealing assembly enhances the sealing performance of connection between the oil storage barrel and the upper cover to avoid the oil leakage phenomenon, the oil injection assembly facilitates pressure relief and oil injection, a large amount of manpower and material resources are reduced, and the production efficiency is improved. And the oil injection treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an automatic oil filling device for a hydraulic cylinder. Background Art

[0002] The 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 and the motion is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] In order to solve the problem of automatic oil filling of hydraulic cylinders, the patent with announcement number CN216077816U discloses an oil filling device for hydraulic cylinder processing, including a bottom plate, a funnel and an upper cover, support rods are provided on both sides of the bottom plate, and a top plate is provided on the top of the support rod, a mounting groove and two fixed cavities are provided on the top plate, and the fixed cavities are located on both sides of the mounting groove, and a locking device is provided in the fixed cavity, the funnel is arranged in the mounting groove, and an oil filling pipe is provided at the bottom of the funnel, an external thread is provided on the top side of the funnel, an internal thread matching the external thread at the bottom of the funnel is provided at the bottom of the upper cover, and a piston cylinder is provided on the upper cover, a cylinder is provided on the top of the piston cylinder, and a piston head is provided at the end of the piston rod in the cylinder. The utility model can conveniently load and unload the funnel by adjusting the locking device, and is easy to operate. When the funnel is removed, oil can be quickly sucked, and the operation is simple, which improves the efficiency of oil filling processing;

[0004] However, the existing device still has the following problems: the piston head in the device can compress the air in the funnel and discharge the lubricating oil or hydraulic oil from the oil filling pipe, but the lubricating oil in the funnel is prone to sedimentation after being placed, resulting in deterioration of the quality of the lubricating oil. Therefore, an automatic oil filling device for a hydraulic cylinder is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic oil filling device for a hydraulic cylinder, which solves the problem that the piston head can compress the air in the funnel and discharge the lubricating oil or hydraulic oil from the oil filling pipe, but the lubricating oil in the funnel is prone to sedimentation after being placed, resulting in deterioration of the quality of the lubricating oil.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an automatic oil filling device for a hydraulic cylinder, comprising a bracket, an oil filling mechanism and a connecting mechanism are arranged inside the bracket, and the connecting mechanism is located on the surface of the oil filling mechanism;

[0007] The oil injection mechanism comprises a sealing component, a stirring component and an oil injection component;

[0008] The stirring component and the sealing component are both located on the surface of the oil injection component;

[0009] The sealing assembly is located above the stirring assembly;

[0010] The oil filling assembly includes an oil storage cylinder, an oil filling pipe is arranged below the oil storage cylinder, the top end surface of the oil filling pipe is fixedly penetrated through the bottom surface of the oil storage cylinder and extends to the inside of the oil storage cylinder, the bottom surface of the oil storage cylinder is fixedly connected to four support rods, the bottom end surfaces of the four support rods are in contact with the bottom surface of the inside of the bracket, an upper cover is arranged above the oil storage cylinder, a piston cylinder is arranged above the upper cover, the bottom end surface of the piston cylinder is fixedly penetrated through the top surface of the upper cover and extends to the inside of the upper cover, a cylinder is arranged above the piston cylinder, and a piston head is arranged inside the piston cylinder;

[0011] The sealing assembly comprises a connecting plate, a bottom surface of which is provided with an empty groove, and a sealing ring is arranged inside the empty groove;

[0012] The stirring assembly includes a motor, the rear end face of the motor output rod passes through the surface of the oil storage cylinder and extends to the inside of the oil storage cylinder, a first rotating rod and a second rotating rod are arranged inside the oil storage cylinder, the second rotating rod is arranged perpendicular to the first rotating rod, the surfaces of the first rotating rod and the second rotating rod are both fixedly sleeved with bevel gears, and the surface of the second rotating rod is fixedly connected to a stirring rod.

[0013] Preferably, the outer surface of the oil storage cylinder is threadedly connected to the inner wall of the upper cover via a thread, the top surface of the sealing ring is fixedly connected to the inner wall of the hollow groove, the inner side surface of the connecting plate is fixedly connected to the inner wall of the upper cover, and the bottom surface of the sealing ring is sealed and extruded to the top surface of the oil storage cylinder, thereby improving the sealing of the connection between the oil storage cylinder and the upper cover.

[0014] Preferably, the bottom surface of the cylinder is fixedly connected to the top surface of the piston cylinder, the bottom end surface of the cylinder output rod passes through the top surface of the piston cylinder and extends to the inside of the piston cylinder, the bottom end surface of the cylinder output rod is fixedly connected to the top surface of the piston head, and the piston head is pushed by the cylinder to discharge the gas in the piston cylinder.

[0015] Preferably, the side surface of the piston head is slidably connected to the inner wall of the piston cylinder, the rear side surface of the motor is fixedly connected to the surface of the oil storage cylinder, the rear end surface of the rear output rod of the motor is fixedly connected to the front end surface of the first rotating rod, and the motor provides power for the rotation of the first rotating rod.

[0016] Preferably, the bottom end surface of the second rotating rod is rotatably connected to the inner bottom surface of the oil storage cylinder through a bearing seat, and the two bevel gears are meshed with each other, so that the transmission effect between the first rotating rod and the second rotating rod is achieved through the two bevel gears.

[0017] Preferably, the connecting mechanism is provided with two dovetail blocks, and the two dovetail blocks are symmetrically arranged. A dovetail groove is opened through the top surface of the bracket, and the bottom end surface of the dovetail block slides through the top surface of the bracket and extends to the inside of the dovetail groove. The inner sides of the two dovetail blocks are fixedly connected to a support plate, and the inner side surface of the support plate is fixedly connected to the outer side surface of the oil storage cylinder, so as to facilitate fixing the oil storage cylinder on the inner side of the bracket.

[0018] Preferably, a fixed clamp is provided on the outer side of the oil filling pipe, and the inner wall of the fixed clamp is threadedly connected to the inner wall of the bracket through a thread, and the fixed clamp fixes the oil filling pipe on the bracket to prevent the oil filling pipe from shaking. Beneficial Effects

[0019] The utility model provides an automatic oil filling device for a hydraulic cylinder. Compared with the prior art, it has the following beneficial effects:

[0020] 1. The automatic oil filling device for the hydraulic cylinder, through the setting of the oil filling mechanism, the stirring component stirs the lubricating oil or hydraulic oil in the oil storage cylinder to avoid the precipitation of the lubricating oil and improve the quality of the lubricating oil. The sealing component enhances the sealing of the connection between the oil storage cylinder and the upper cover to avoid oil leakage. The oil filling component is convenient for pressure relief and oil filling, which reduces a lot of manpower and material resources and improves the efficiency of the oil filling process.

[0021] 2. The automatic oil filling device of the hydraulic cylinder is convenient for connecting the oil storage cylinder and the bracket through the setting of the connecting mechanism. When the oil storage cylinder is removed, the oil can be quickly sucked. The fixed clamp is convenient for fixing the oil filling pipe on the bracket to avoid shaking of the oil filling pipe and improve the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front cutaway stereoscopic view of the utility model;

[0023] Figure 2 This is a main stereoscopic view of the utility model;

[0024] Figure 3 This is a bottom-up perspective view of the oil storage cylinder of the utility model;

[0025] Figure 4 It is a left side cutaway stereogram of the utility model;

[0026] Figure 5 For this utility model Figure 4 Enlarged stereogram of area A in the middle.

[0027] In the figure: bracket 1, oil filling mechanism 2, oil storage cylinder 201, upper cover 202, connecting plate 203, sealing ring 204, piston cylinder 205, cylinder 206, piston head 207, motor 208, first rotating rod 209, second rotating rod 210, bevel gear 211, stirring rod 212, oil filling pipe 213, connecting mechanism 3, dovetail block 301, support plate 302, fixed clamp 303. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 5 The utility model provides two technical solutions, which specifically include the following embodiments: Embodiment 1

[0030] An automatic oil filling device for a hydraulic cylinder comprises a bracket 1, an oil filling mechanism 2 and a connecting mechanism 3 are arranged inside the bracket 1, and the connecting mechanism 3 is located on the surface of the oil filling mechanism 2;

[0031] The oil injection mechanism 2 includes a sealing component, a stirring component and an oil injection component;

[0032] The stirring component and the sealing component are both located on the surface of the oil injection component;

[0033] The sealing assembly is located above the stirring assembly;

[0034] The oil filling assembly includes an oil storage cylinder 201, an oil filling pipe 213 is arranged below the oil storage cylinder 201, the top end surface of the oil filling pipe 213 is fixedly passed through the bottom surface of the oil storage cylinder 201 and extends to the inside of the oil storage cylinder 201, four support rods are fixedly connected to the bottom surface of the oil storage cylinder 201, and the bottom end surfaces of the four support rods are in contact with the bottom surface of the inside of the bracket 1, an upper cover 202 is arranged above the oil storage cylinder 201, a piston cylinder 205 is arranged above the upper cover 202, the bottom end surface of the piston cylinder 205 is fixedly passed through the top surface of the upper cover 202 and extends to the inside of the upper cover 202, a cylinder 206 is arranged above the piston cylinder 205, and a piston head 207 is arranged inside the piston cylinder 205;

[0035] The sealing assembly includes a connecting plate 203, a bottom surface of the connecting plate 203 is provided with an empty groove, and a sealing ring 204 is arranged inside the empty groove;

[0036] The stirring assembly includes a motor 208, the rear end face of the output rod of the motor 208 passes through the surface of the oil storage cylinder 201 and extends to the inside of the oil storage cylinder 201, a first rotating rod 209 and a second rotating rod 210 are arranged inside the oil storage cylinder 201, the second rotating rod 210 is arranged perpendicular to the first rotating rod 209, the surfaces of the first rotating rod 209 and the second rotating rod 210 are fixedly sleeved with a bevel gear 211, the surface of the second rotating rod 210 is fixedly connected with a stirring rod 212, the outer surface of the oil storage cylinder 201 is threadedly connected to the inner wall of the upper cover 202 through a thread, the top surface of the sealing ring 204 is fixedly connected to the inner wall of the empty groove, the inner side surface of the connecting plate 203 is fixedly connected to the inner wall of the upper cover 202, and the sealing The bottom surface of the sealing ring 204 is sealed and extrudedly connected to the top surface of the oil storage cylinder 201, the bottom surface of the cylinder 206 is fixedly connected to the top surface of the piston cylinder 205, the bottom end surface of the output rod of the cylinder 206 penetrates the top surface of the piston cylinder 205 and extends to the inside of the piston cylinder 205, the bottom end surface of the output rod of the cylinder 206 is fixedly connected to the top surface of the piston head 207, the side surface of the piston head 207 is slidingly connected to the inner wall of the piston cylinder 205, the rear side surface of the motor 208 is fixedly connected to the surface of the oil storage cylinder 201, the rear end surface of the rear output rod of the motor 208 is fixedly connected to the front end surface of the first rotating rod 209, the bottom end surface of the second rotating rod 210 is rotatably connected to the bottom surface inside the oil storage cylinder 201 through the bearing seat, and the two bevel gears 211 are meshed with bevel surfaces.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] When working, first align the dovetail block 301 with the dovetail groove, use the fixed clamp 303 to fix the oil filling pipe 213 inside the bracket 1, turn on the cylinder 206, and the output rod of the cylinder 206 extends to drive the connected piston head 207 to slide downward inside the piston cylinder 205, and the piston head 207 discharges the air in the piston cylinder 205, so that the lubricating oil or hydraulic oil can be discharged from the oil filling pipe 213; pull the support plate 302, the support plate 302 drives the dovetail block 301 to slide from the dovetail groove, remove the fixed clamp 303, remove the oil filling pipe 213 from the bracket 1, and at the same time rotate the upper cover 202 and remove the oil storage cylinder 201 to quickly absorb oil.

[0039] Through the setting of the oil filling mechanism 2, the stirring component stirs the lubricating oil or hydraulic oil in the oil storage cylinder 201 to avoid sedimentation of the lubricating oil and improve the quality of the lubricating oil. The sealing component enhances the sealing of the connection between the oil storage cylinder 201 and the upper cover 202 to avoid oil leakage. The oil filling component facilitates pressure relief and oil filling, reduces a lot of manpower and material resources, and improves the efficiency of the oil filling process. Embodiment 2

[0040] On the basis of the first embodiment, the connection mechanism 3 is provided with two dovetail blocks 301, the two dovetail blocks 301 are symmetrically arranged, a dovetail groove is provided through the top surface of the bracket 1, the bottom end surface of the dovetail block 301 slides through the top surface of the bracket 1 and extends to the inside of the dovetail groove, the inner side surfaces of the two dovetail blocks 301 are fixedly connected with a support plate 302, the inner side surface of the support plate 302 is fixedly connected with the outer side surface of the oil storage cylinder 201, and a fixed clamping claw 303 is provided on the outer side of the oil filling pipe 213, and the inner wall of the fixed clamping claw 303 is threadedly connected with the inner wall of the bracket 1 through a thread;

[0041] The connection mechanism 3 is provided to facilitate the connection between the oil storage cylinder 201 and the bracket 1. When the oil storage cylinder 201 is removed, the oil can be quickly sucked out. The fixed clamp 303 is convenient for fixing the oil filling pipe 213 on the bracket to avoid shaking of the oil filling pipe and improve the stability of the device.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. An automatic oil filling device for a hydraulic cylinder, comprising a bracket (1), characterized in that: An oil injection mechanism (2) and a connection mechanism (3) are provided inside the bracket (1), and the connection mechanism (3) is located on the surface of the oil injection mechanism (2); The oil injection mechanism (2) comprises a sealing component, a stirring component and an oil injection component; The stirring component and the sealing component are both located on the surface of the oil injection component; The sealing assembly is located above the stirring assembly; The oil filling assembly comprises an oil storage cylinder (201), an oil filling pipe (213) is arranged below the oil storage cylinder (201), the top end surface of the oil filling pipe (213) is fixedly passed through the bottom surface of the oil storage cylinder (201) and extends into the interior of the oil storage cylinder (201), the bottom surface of the oil storage cylinder (201) is fixedly connected to four support rods, the bottom end surfaces of the four support rods are in contact with the bottom surface inside the bracket (1), an upper cover (202) is arranged above the oil storage cylinder (201), a piston cylinder (205) is arranged above the upper cover (202), the bottom end surface of the piston cylinder (205) is fixedly passed through the top surface of the upper cover (202) and extends into the interior of the upper cover (202), a cylinder (206) is arranged above the piston cylinder (205), and a piston head (207) is arranged inside the piston cylinder (205); The sealing assembly comprises a connecting plate (203), a bottom surface of the connecting plate (203) being provided with an empty groove, and a sealing ring (204) being arranged inside the empty groove; The stirring assembly comprises a motor (208), the rear end face of the output rod of the motor (208) passes through the surface of the oil storage cylinder (201) and extends into the interior of the oil storage cylinder (201), a first rotating rod (209) and a second rotating rod (210) are arranged inside the oil storage cylinder (201), the second rotating rod (210) is arranged perpendicular to the first rotating rod (209), a bevel gear (211) is fixedly sleeved on the surface of the first rotating rod (209) and the surface of the second rotating rod (210), and a stirring rod (212) is fixedly connected to the surface of the second rotating rod (210).

2. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: The outer surface of the oil storage cylinder (201) is threadedly connected to the inner wall of the upper cover (202) via a thread, the top surface of the sealing ring (204) is fixedly connected to the inner wall of the hollow groove, the inner side surface of the connecting plate (203) is fixedly connected to the inner wall of the upper cover (202), and the bottom surface of the sealing ring (204) is sealed and extrudedly connected to the top surface of the oil storage cylinder (201).

3. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: The bottom surface of the cylinder (206) is fixedly connected to the top surface of the piston cylinder (205); the bottom end surface of the output rod of the cylinder (206) penetrates the top surface of the piston cylinder (205) and extends into the interior of the piston cylinder (205); and the bottom end surface of the output rod of the cylinder (206) is fixedly connected to the top surface of the piston head (207).

4. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: The side surface of the piston head (207) is slidably connected to the inner wall of the piston cylinder (205), the rear side surface of the motor (208) is fixedly connected to the surface of the oil storage cylinder (201), and the rear end surface of the rear output rod of the motor (208) is fixedly connected to the front end surface of the first rotating rod (209).

5. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: The bottom end surface of the second rotating rod (210) is rotatably connected to the inner bottom surface of the oil storage cylinder (201) via a bearing seat, and the two bevel gears (211) are meshed with each other at an angle.

6. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: The connection mechanism (3) is provided with two dovetail blocks (301), the two dovetail blocks (301) are symmetrically arranged, the top surface of the bracket (1) is provided with a dovetail groove, the bottom end surface of the dovetail block (301) slides through the top surface of the bracket (1) and extends into the dovetail groove, the inner side surfaces of the two dovetail blocks (301) are fixedly connected to support plates (302), and the inner side surfaces of the support plates (302) are fixedly connected to the outer side surface of the oil storage cylinder (201).

7. The automatic oil filling device for a hydraulic cylinder according to claim 1, characterized in that: A fixed clamping claw (303) is arranged on the outside of the oil injection pipe (213), and the inner wall of the fixed clamping claw (303) is threadedly connected to the inner wall of the bracket (1) via a thread.

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