Quick plug oiling mechanism

Abstract

The quick plug oiling mechanism comprises a rack, a plurality of inserting rods are installed on the rack, oil cavities are formed in the inserting rods, annular oil grooves are formed in the outer sides of the upper ends of the inserting rods, the annular oil grooves communicate with the oil cavities through a plurality of communicating holes, the lower ends of the inserting rods are connected with oil supply pipes, the oil supply pipes communicate with the oil cavities, and proportional valves are installed on the oil supply pipes. According to the quick plug oiling mechanism, through the design of the annular oil groove and the communicating hole of the inserting rod, oil can evenly seep out along the surface of the quick plug, oiling consistency is ensured, and local oil quantity unbalance is avoided; the proportional valve is matched with the oil delivery pump, the oiling amount can be accurately controlled, and waste is reduced. The shunting structure of the main oil pipe and the branch oil pipe is suitable for synchronous processing of multi-specification quick plugs, and efficiency is improved. The cleaning rod sprays air through the annular air groove, dust can be cleaned in time, and the oiling quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fast plug production, and particularly relates to a fast plug oiling mechanism. BACKGROUND

[0002] In the production and assembly process of fast plugs, in order to ensure the smoothness and service life, the inside of the plug usually needs to be oiled. The traditional oiling method is usually manual brushing or oil immersion, which is not only low in efficiency, but also difficult to ensure uniform oiling amount, and is prone to problems such as local excessive oiling leading to waste or insufficient oiling affecting the use performance. Although some automatic oiling equipment realizes batch processing, it usually relies on direct spraying of the nozzle, and has defects such as oil splashing to pollute the environment and incomplete oil film coverage. In addition, the existing equipment often lacks precise control of the oiling amount, cannot adapt to the oiling needs of fast plugs of different specifications, and is inconvenient to clean and maintain, which restricts the improvement of production continuity and stability. SUMMARY

[0003] To solve the above technical problems, the technical scheme adopted by the application is: a fast plug oiling mechanism, comprising a rack, a plurality of plug rods are installed on the rack, an oil cavity is arranged in the inside of the plug rod, an annular oil groove is arranged on the outside of the upper end of the plug rod, the annular oil groove is communicated with the oil cavity through a plurality of communication holes, a oil supply pipe is connected to the lower end of the plug rod, the oil supply pipe is communicated with the oil cavity, and a quantitative valve is installed on the oil supply pipe.

[0004] As a preferred technical scheme of the above technical scheme, a main oil pipe is fixedly connected below the rack, the main oil pipe is connected with the oil supply pipes through a plurality of oil distribution pipes, the main oil pipe is connected with a container containing oil through an oil pump, and a pressure gauge and a pressure relief valve are installed on the main oil pipe.

[0005] As a preferred technical scheme of the above technical scheme, a flange plate is fixedly connected to the lower end of the plug rod, a sealing ring is arranged between the flange plate and the rack, a pressing plate is sleeved on the plug rod, the pressing plate and the rack are connected through a plurality of bolts, the flange plate is clamped between the pressing plate and the rack, a connecting hole is arranged on the rack, the oil cavity is communicated with the oil supply pipe through the connecting hole, the upper end of the oil supply pipe is fixedly connected with a butt joint disc, the butt joint disc and the rack are connected through a plurality of bolts, and a sealing ring is arranged between the butt joint disc and the rack.

[0006] As a preferred technical scheme of the above technical scheme, a plurality of cleaning rods are fixedly connected to the rack, an air cavity is arranged in the inside of the cleaning rod, an annular air groove is arranged on the outside of the upper end of the cleaning rod, the annular air groove is communicated with the air cavity through a plurality of air holes, a gas supply pipe is connected to the lower end of the cleaning rod, the gas supply pipe is communicated with the air cavity, a control valve is arranged on the gas supply pipe, and the cleaning rod and the plug rod are in one-to-one correspondence.

[0007] As a preferred technical scheme of the above technical scheme, the lower end of the cleaning rod is threadedly connected with the rack.

[0008] As the preferred technical scheme of the above, the annular oil groove is provided with a plurality of pairs of elastic rings from outside to inside, each pair of elastic rings comprises an upper elastic ring and a lower elastic ring, the upper end of the upper elastic ring and the lower end of the lower elastic ring are fixedly connected with a fixed ring respectively, a plurality of fixed grooves for embedding the fixed rings are arranged in the annular oil groove, the lower end of the upper elastic ring is located inside the upper end of the lower elastic ring, and the lower end of the upper elastic ring and the upper end of the lower elastic ring are attached.

[0009] As the preferred technical scheme of the above, the upper end of the piston is provided with a magnet, the upper end of the inserting rod is provided with an electromagnet, and the electromagnet repels the magnet after being electrified.

[0010] As the preferred technical scheme of the above, the upper end of the spring is fixedly connected with the inserting rod, and the upper end of the spring is fixedly connected with the piston.

[0011] As the preferred technical scheme of the above, the cross section of the stop ring is circular or right-angled trapezoidal, and the oil cavity is provided with a limiting groove for embedding the outer side of the stop ring.

[0012] The beneficial effects of the present application are that the quick plug oiling mechanism can realize uniform seepage of oil along the surface of the quick plug, ensure the consistency of oiling, and avoid local oil imbalance through the design of the annular oil groove and the communication hole of the inserting rod; the quantitative valve can accurately control the oiling amount in cooperation with the oil pump, thereby reducing waste. The shunt structure of the main oil pipe and the oil distribution pipe is suitable for synchronous processing of quick plugs of multiple specifications, thereby improving efficiency. The cleaning rod can clean dust in time through air injection of the annular air groove, thereby ensuring the oiling quality. The modular installation design of the inserting rod and the cleaning rod facilitates disassembly, maintenance and enhancement of the versatility of the equipment. The elastic ring and the piston structure further optimize the oil film adhesion effect, reduce oil leakage, improve the material utilization efficiency, and reduce environmental pollution. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a structural schematic diagram of the present application; Fig. 2 is a cross-sectional structural schematic diagram of the present application; Fig. 3 is a cross-sectional structural schematic diagram of the inserting rod. DETAILED DESCRIPTION

[0014] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0015] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] like Figs. 1-3 As shown, the quick-connect oiling mechanism has several insert rods 2 mounted on a frame 1. Each insert rod 2 has an oil chamber 3 inside, and an annular oil groove 4 on the outer side of its upper end. The annular oil groove 4 connects to the oil chamber 3 through several connecting holes 5. An oil supply pipe 6 is connected to the lower end of each insert rod 2, and the oil supply pipe 6 connects to the oil chamber 3. A metering valve 7 is installed on the oil supply pipe 6. When the quick-connect plug is fitted onto the upper end of the insert rod 2, the metering valve 7 opens and meteredly delivers oil to the oil chamber 3. The oil passes through the connecting holes 5 and enters the annular oil groove 4, where it is then sprayed in an annular pattern, forming an oil film inside the quick-connect plug.

[0018] Furthermore, a main oil pipe 8 is fixedly connected to the lower part of the frame 1. The main oil pipe 8 is connected to the oil supply pipe 6 through several branch oil pipes 9. The main oil pipe 8 is connected to a container containing oil through an oil pump. A pressure gauge and a pressure relief valve are installed on the main oil pipe 8. The oil in the main oil pipe 8 maintains a certain oil pressure, and the metering valve 7 controls the metering of the oil to be metered into the oil chamber 3.

[0019] Furthermore, a flange 10 is fixedly connected to the lower end of the insertion rod 2, and a sealing ring 11 is provided between the flange 10 and the frame 1. A pressure plate 12 is fitted onto the insertion rod 2, and the pressure plate 12 is connected to the frame 1 by several bolts. The flange 10 is sandwiched between the pressure plate 12 and the frame 1. The frame 1 is provided with a connection hole 13, and the oil chambers 3 are connected to the oil supply pipes 6 through the connection holes 13. A docking plate 14 is fixedly connected to the upper end of the oil supply pipes 6, and the docking plate 14 is connected to the frame 1 by several bolts. A sealing ring 11 is provided between the docking plate 14 and the frame 1. The insertion rod 2 is detachably installed on the frame 1 for easy changeover and maintenance.

[0020] Further, the rack 1 is fixedly connected with several cleaning rods 15, the inside of the cleaning rod 15 is provided with an air cavity 16, the outside of the upper end of the cleaning rod 15 is provided with an annular air groove, the annular air groove is communicated with the air cavity 16 through several air holes, the lower end of the cleaning rod 15 is connected with a gas supply pipe, the gas supply pipe is communicated with the air cavity 16, the gas supply pipe is provided with a control valve, the cleaning rod 15 corresponds to the plug rod 2 one by one. The gas supply pipe is connected with an air compressor. Before oiling, the quick plug is sleeved on the cleaning rod 15. Through the control valve, the annular air groove sprays high-pressure clean compressed air, the inside of the quick plug sleeved on the cleaning rod 15 is blown and cleaned, and then the quick plug is sleeved on the plug rod 2 to perform oiling.

[0021] Further, the lower end of the cleaning rod 15 is threadedly connected with the rack 1. The cleaning rod 15 can be disassembled or installed by rotating.

[0022] Further, the annular oil groove 4 is provided with several pairs of elastic rings from outside to inside, each pair of elastic rings comprises an upper elastic ring 17 and a lower elastic ring 18, the upper end of the upper elastic ring 17 and the lower end of the lower elastic ring 18 are fixedly connected with a fixed ring 19 respectively, the annular oil groove 4 is provided with several fixed grooves 20 for embedding the fixed ring 19 respectively, the lower end of the upper elastic ring 17 is located inside the upper end of the lower elastic ring 18, the lower end of the upper elastic ring 17 and the upper end of the lower elastic ring 18 are in close contact, the inside of the oil cavity 3 is provided with a piston 21, the upper side of the piston 21 is provided with a spring 22, the inside of the oil cavity 3 is fixedly connected with a blocking ring 23, the blocking ring 23 is fixed in the oil cavity 3, the communication hole 5 is located above the blocking ring 23, and the blocking ring 23 and the piston 21 are both elastic. When the quantitative valve 7 is opened, the oil liquid with a certain pressure in the main oil pipe 8 is quantitatively introduced into the oil cavity 3. The high-pressure oil liquid in the oil cavity 3 pushes against the piston 21, so that the piston 21 moves upward against the elastic force of the blocking ring 23 and the spring 22, and after the piston 21 moves to the upper side of the communication hole 5, the high-pressure oil liquid passes through the communication hole 5 and enters the annular oil groove 4, and acts on the upper elastic ring 17 and the lower elastic ring 18, so that the connection part of the upper elastic ring 17 and the lower elastic ring 18 forms an annular gap for spraying oil liquid, and the oil liquid can be uniformly sprayed in all directions, so as to form uniform oiling in the inside of the quick plug. After the oil liquid in the oil cavity is sprayed out, the spring 22 restores the elastic force to push the piston 21 downward, so that the piston 21 moves to the lower side of the blocking ring 23. The upper end of the oil cavity 3 forms a certain negative pressure, which cooperates with the upper elastic ring 17 and the lower elastic ring 18 to avoid leakage of the oil liquid remaining in the annular oil groove 4 and the communication hole 5. The blocking ring 23 can block the piston 21 before the oil pressure in the oil cavity 3 reaches the set value, so that the oil liquid entering the oil cavity 3 has a certain pressure before being sprayed, and the oil liquid flowing out of the annular oil groove 4 has a certain flow rate, so that the oil liquid can be almost entirely sprayed on the inside of the quick plug, and leakage caused by natural dripping due to insufficient pressure can be avoided.

[0023] Further, the upper end of the piston 21 is provided with a magnet 24, and the upper end of the insertion rod 2 is provided with an electromagnet 25, which repels the magnet 24 when electrified. The electromagnet 25 generates repulsive force with the magnet 24 when electrified, and cooperates with the spring 22 to push the piston 21 to a position below the blocking ring 23, so that the annular oil groove 4, the communication hole 5 and the part of the oil cavity 3 above the piston 21 form a certain negative pressure, avoiding oil leakage from the annular oil groove 4.

[0024] Further, the upper end of the spring 22 is fixedly connected with the insertion rod 2, and the upper end of the spring 22 is fixedly connected with the piston 21. The spring 22 can not only push the piston 21 to reset, but also pull the piston 21 to avoid affecting the oil inlet of the oil cavity 3 at the connection between the insertion rod 2 and the oil supply pipe 6 or the quantitative valve 7.

[0025] Further, the cross section of the blocking ring 23 is a right trapezoid, and the oil cavity 3 is provided with a limiting groove 26 for embedding the outer side of the blocking ring 23. The lower surface of the blocking ring 23 is a plane, which can form a certain blocking effect on the piston 21. When the oil pressure increases and the piston 21 and the blocking ring 23 deform, causing the piston 21 to move above the blocking ring 23, the oil cavity 3 is depressurized, and the piston 21 can smoothly pass through the inclined surface of the blocking ring 23 under the cooperation of the spring 22, the electromagnet 25 and the magnet 24, and return to the initial position below the blocking ring 23.

[0026] It is worth mentioning that the quantitative valve 7, the control valve, the oil delivery pump, the pressure gauge and the pressure relief valve and other technical features involved in the present application should be regarded as prior art. The specific structure, working principle and possible control mode and spatial arrangement mode of these technical features can be selected by using the conventional selection in the art, and should not be regarded as the invention point of the present application. The present application will not be further expanded and described in detail.

[0027] The above describes the preferred embodiments of the present application in detail, and it should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application, therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present application should be within the protection scope determined by the claims.

Claims

1. A quick-connect plug oiling mechanism, characterized in that, It includes a frame, on which several insert rods are installed. The insert rods have an oil chamber inside, and an annular oil groove is provided on the outer side of the upper end of the insert rod. The annular oil groove is connected to the oil chamber through several connecting holes. The lower end of the insert rod is connected to an oil supply pipe, which is connected to the oil chamber. A metering valve is installed on the oil supply pipe.

2. The quick-connect plug oiling mechanism as described in claim 1, characterized in that, A main oil pipe is fixedly connected to the bottom of the frame. The main oil pipe is connected to the oil supply pipe through several branch oil pipes. The main oil pipe is connected to a container containing oil through an oil pump. A pressure gauge and a pressure relief valve are installed on the main oil pipe.

3. The quick-connect plug oiling mechanism as described in claim 1, characterized in that, A flange is fixedly connected to the lower end of the insertion rod. A sealing ring is provided between the flange and the frame. A pressure plate is fitted on the insertion rod. The pressure plate is connected to the frame by several bolts. The flange is sandwiched between the pressure plate and the frame. A connection hole is provided on the frame. The oil chambers are connected to the oil supply pipe through the connection hole. A docking plate is fixedly connected to the upper end of the oil supply pipe. The docking plate is connected to the frame by several bolts. A sealing ring is provided between the docking plate and the frame.

4. The quick-connect plug oiling mechanism as described in claim 1, characterized in that, Several cleaning rods are fixedly connected to the frame. Each cleaning rod has an air chamber inside and an annular air groove on the outer side of its upper end. The annular air groove is connected to the air chamber through several air holes. The lower end of the cleaning rod is connected to an air supply pipe, which is connected to the air chamber. A control valve is provided on the air supply pipe. Each cleaning rod corresponds to a plug.

5. The quick-connect plug oiling mechanism as described in claim 4, characterized in that, The lower end of the cleaning rod is threadedly connected to the frame.

6. The quick-connect plug oiling mechanism as described in claim 1, characterized in that, The annular oil groove is provided with several pairs of elastic rings from the outside to the inside. Each pair of elastic rings includes an upper elastic ring and a lower elastic ring. The upper end of the upper elastic ring and the lower end of the lower elastic ring are respectively fixedly connected to a fixing ring. The annular oil groove is provided with several fixing grooves for the fixing rings to be embedded. The lower end of the upper elastic ring is located inside the upper end of the lower elastic ring, and the lower end of the upper elastic ring and the upper end of the lower elastic ring are in contact. A piston is provided inside the oil cavity, and a spring is provided above the piston. A retaining ring is fixedly connected inside the oil cavity. The retaining ring is fixed inside the oil cavity, and the connecting hole is located above the retaining ring. Both the retaining ring and the piston are elastic.

7. The quick-connect plug oiling mechanism as described in claim 6, characterized in that, The piston has a magnet at its upper end, and an electromagnet is installed at the upper end of the insertion rod. When the electromagnet is energized, it repels the magnet.

8. The quick-connect oiling mechanism as described in claim 6, characterized in that, The upper end of the spring is fixedly connected to the insert rod, and the upper end of the spring is fixedly connected to the piston.

9. The quick-connect plug oiling mechanism as described in claim 6, characterized in that, The cross-section of the retaining ring is circular or a right-angled trapezoid, and the oil cavity is provided with a limiting groove for the outer side of the retaining ring to be embedded.

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