Corrosion-resistant alloy forging equipment lubricating device

Abstract

The application provides a kind of corrosion-resistant alloy forging equipment lubricating device, belongs to the field of forging equipment manufacturing;The application includes: oil cylinder, piston rod, dustproof shell, sealing ring and telescopic ring;Oil cylinder has opening, the piston rod is telescopicly installed in the oil cylinder by the opening;Dustproof shell is fixed on the oil cylinder, the vertical oil guide pipe is fixed in the dustproof shell, the oil guide pipe has oil outlet;The sealing ring is sleeved on the piston rod, and the telescopic ring is sleeved on the outside of the sealing ring;The telescopic ring is C-shaped structure, the C-shaped structure has fixed end and telescopic end;Fixed end is connected with dustproof shell, and sliding block is arranged on telescopic end;Temperature change memory alloy spring is arranged between sliding block and dustproof shell;Sliding block is provided with oil guide hole;One end of the oil guide hole corresponds to the sealing ring, and the other end corresponds to the oil outlet.The application controls the opening and closing of light lubricating oil circuit by the telescopic of temperature change memory alloy spring at different temperatures, and also can enhance the sealing with temperature, greatly improves the starting and running process of heavy cylinder, and the cost is low.

Description

Technical Field

[0001] This invention relates to forging equipment manufacturing technology, and more particularly to a lubrication device for corrosion-resistant alloy forging equipment, belonging to the field of heavy equipment lubrication system manufacturing technology. Background Technology

[0002] Forging is a processing method that uses forging machinery to apply pressure to metal billets, causing them to undergo plastic deformation to obtain forgings with certain mechanical properties, shapes, and dimensions. It is one of the two major components of forging and stamping. Forging can eliminate defects such as casting porosity generated during the smelting process and optimize the microstructure. At the same time, because it preserves the complete metal flow lines, the mechanical properties of forgings are generally superior to those of castings made of the same material. Forging is used for important parts in related machinery that are subject to high loads and harsh working conditions.

[0003] In the forging process of corrosion-resistant alloys, heavy-duty cylinders are generally used to forge and shape the alloy. Due to the harsh working conditions and high vibration loads of heavy-duty cylinders, high-viscosity lubricating oils are used to ensure the cylinder meets the requirements of the operating conditions. However, using high-viscosity lubricating oil slows down the starting speed of heavy-duty cylinders, requiring heating of the oil circuit system each time they are started, and continuous operation can only be achieved after the lubricating oil viscosity decreases.

[0004] In addition, heavy-duty cylinders will continuously generate heat due to friction during operation. The accumulated heat will further reduce the viscosity of the lubricating oil, which can easily lead to lubricating oil leakage. The conventional approach is to use an oil cooler to continuously cool the lubricating oil, thereby ensuring the continuous operation of the cylinder.

[0005] Therefore, in the existing technology, in order to ensure the normal start-up and operation of the cylinder, heating and cooling devices need to be installed in the lubrication system, which greatly increases the complexity of the system and results in a slow start-up speed. Summary of the Invention

[0006] This invention provides a novel lubrication device for corrosion-resistant alloy forging equipment. After the piston rod extends, it automatically applies low-viscosity lubricating oil, thereby reducing resistance during startup and solving the technical problem of slow startup of heavy-duty cylinders in the prior art.

[0007] The lubrication device for corrosion-resistant alloy forging equipment according to an embodiment of the present invention includes an oil cylinder, a piston rod, a dust cover, a sealing ring, and a telescopic ring; the oil cylinder has an opening, and the piston rod is telescopically installed inside the oil cylinder through the opening; the dust cover is fixed on the oil cylinder, and a vertical oil guide pipe is fixed inside the dust cover, the oil guide pipe having an oil outlet;

[0008] The sealing ring is fitted onto the piston rod, and the telescopic ring is fitted onto the outside of the sealing ring; the telescopic ring has a C-shaped structure, which has a fixed end and a telescopic end; the fixed end is connected to the dustproof shell, and a slider is provided on the telescopic end; a temperature-sensitive memory alloy spring is provided between the slider and the dustproof shell;

[0009] The slider is provided with an oil guide hole; one end of the oil guide hole corresponds to the sealing ring, and the other end corresponds to the oil outlet; the temperature-changing memory alloy spring contracts as the temperature increases, so that the slider moves closer to the fixed end, thereby causing the slider to gradually close the oil outlet.

[0010] In the lubrication device for corrosion-resistant alloy forging equipment as described above, a fixing plate is provided on the dustproof shell, and the fixing plate is fixed to the oil cylinder; the fixing end is connected to the fixing plate.

[0011] The lubrication device for corrosion-resistant alloy forging equipment as described above, wherein the sealing ring comprises: two sealing rings; two annular baffles are provided on the inner side of the telescopic ring, the two sealing rings are located between the two annular baffles and are in contact with the two annular baffles respectively.

[0012] The lubrication device for corrosion-resistant alloy forging equipment as described above, wherein the oil guide hole corresponds to the two sealing rings.

[0013] The lubrication device for corrosion-resistant alloy forging equipment as described above, wherein the sealing ring has a high-elasticity section, and the high-elasticity section is provided with multiple oil suction holes; the high-elasticity section corresponds to the temperature-changing memory alloy spring.

[0014] In the corrosion-resistant alloy forging equipment lubrication device described above, the oil outlet is located on the bottom side of the oil guide pipe, and a pressurized gas cylinder is provided at the top of the oil guide pipe.

[0015] The lubrication device for corrosion-resistant alloy forging equipment as described above, wherein the oil guide pipe is a transparent oil guide pipe.

[0016] In the lubrication device for corrosion-resistant alloy forging equipment as described above, a dustproof ring is provided at the bottom of the telescopic ring, and the telescopic ring is fitted onto the outside of the piston rod through the dustproof ring.

[0017] In the corrosion-resistant alloy forging equipment lubrication device described above, the inner side of the telescopic ring is provided with two grooves, and each sealing ring is installed on the inner side of the telescopic ring through one of the grooves.

[0018] In the corrosion-resistant alloy forging equipment lubrication device described above, the sealing ring is bonded to the inner side of the telescopic ring.

[0019] In this embodiment of the invention, the opening and closing of the lightweight lubricating oil circuit is controlled by the expansion and contraction of the temperature-changing memory alloy spring at different temperatures. Furthermore, the sealing performance is enhanced as the temperature increases, which greatly improves the starting and running process of the heavy-duty cylinder, and the cost is low. Attached Figure Description

[0020] Figure 1 This is a side view of the lubrication device for a corrosion-resistant alloy forging equipment according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the initial state of section AA;

[0022] Figure 3 for Figure 1 Schematic diagram of the contraction state of section AA. Detailed Implementation

[0023] The lubrication device for corrosion-resistant alloy forging equipment described in this invention can be made of the following materials and components, but is not limited to them, such as: oil cylinder, piston rod, sealing ring, oil guide pipe, low viscosity lubricating oil, expansion ring, temperature change memory alloy, etc.

[0024] like Figure 1 The image shown is a side view of the lubrication device for a corrosion-resistant alloy forging equipment according to an embodiment of the present invention; combined with Figure 2 and Figure 3 As shown. It should be noted that the piston rod of the present invention is in the extended state in the initial state.

[0025] The lubrication device for the corrosion-resistant alloy forging equipment in this embodiment includes: a cylinder 1, a piston rod 11, a dust cover 2, a sealing ring 3, and a telescopic ring 4; the cylinder 1 has an opening 10 (the opening 10 is used to insert the piston rod 11), and the piston rod 22 is telescopically installed in the cylinder 1 through the opening 10; the dust cover 2 is fixed on the cylinder 1, and a vertical oil guide pipe 6 is fixed inside the dust cover 2, the oil guide pipe 6 has an oil outlet 60; the oil guide pipe 6 contains low-viscosity lubricating oil.

[0026] The sealing ring 3 is disposed on the piston rod 22, and the telescopic ring 4 is disposed on the outside of the sealing ring 3; the telescopic ring 4 has a C-shaped structure with a fixed end and a telescopic end; the fixed end is connected to the dustproof shell 2, and a slider 22 is disposed on the telescopic end; a temperature-changing memory alloy spring 5 is disposed between the slider 22 and the dustproof shell 2.

[0027] The thermochromic shape memory alloy spring 5 is a nickel-titanium shape memory alloy spring. Shape memory alloys (SMAs) are materials composed of two or more metallic elements that exhibit shape memory effect (SME) through thermoelasticity and martensitic phase transformation and its inverse. When a shape memory alloy is subjected to external force in its high-temperature austenitic state, it undergoes significant deformation; after the external force is removed, the large deformation is completely recovered. In this invention, the thermochromic shape memory alloy spring 5 continuously contracts upon heating and returns to its initial state after the temperature decreases.

[0028] The slider 22 is provided with an oil guide hole 23; one end of the oil guide hole 23 corresponds to the sealing ring 3, and the other end corresponds to the oil outlet 60; the temperature-changing memory alloy spring 5 contracts as the temperature increases, so that the slider 22 moves closer to the fixed end, thereby gradually closing the oil outlet 60.

[0029] In this embodiment of the invention, in the initial state, low-viscosity lubricating oil is first injected into the oil guide pipe 6; at this time, the lubricating oil flows directly into the oil guide hole 23 through the oil outlet 60, and then enters the sealing ring 3. During the process of the piston rod 11 retracting into the oil cylinder 1, its surface is lubricated. Due to the low-viscosity lubricating oil, the adhesion force is greatly reduced, thereby accelerating the starting speed of the piston rod.

[0030] After working continuously for a period of time, the piston rod heats up due to friction. At this time, the temperature-changing memory alloy spring contracts at high temperature, thereby automatically controlling the closure of the light lubricating oil circuit and continuously tightening the telescopic ring 4, thereby enhancing the sealing effect at the end of the cylinder 1 and preventing high-temperature lubricating oil leakage.

[0031] This invention greatly improves the starting and running process of heavy-duty cylinders, and is inexpensive.

[0032] Typically, the dust cover 2 is equipped with a fixing plate 21, which is used to fix the oil cylinder 1; the fixing end is connected to the fixing plate 21. The fixing plate 21 is generally made of metal, which can effectively transmit the temperature changes of the oil cylinder 1. After the oil cylinder temperature rises, it can effectively transmit the temperature change memory alloy spring 5, prompting it to contract in time.

[0033] Furthermore, the sealing ring 3 includes two sealing rings; the inner side of the telescopic ring 4 is provided with two annular baffles 40, the two sealing rings are located between the two annular baffles 40, and are in contact with the two annular baffles 40 respectively.

[0034] Furthermore, the oil guide hole 23 corresponds to the two sealing rings. Lubricating oil can form an oil ring between the two sealing rings, thereby enhancing lubrication during the starting process and reducing starting friction.

[0035] The design of two sealing rings not only enhances the sealing performance but also prevents lubricating oil from leaking at this point. Furthermore, during the shrinkage of the sealing rings, the two sealing rings will not deform along the piston ring axis due to the restraining effect of the annular baffle 40, thus enhancing the sealing effect at high temperatures.

[0036] In this embodiment of the corrosion-resistant alloy forging equipment lubrication device, the sealing ring 3 has a high-elasticity section 30, which is provided with multiple oil suction holes; the high-elasticity section 30 corresponds to the temperature-changing memory alloy spring 5. To prevent axial deformation of the sealing ring 3 during contraction, the high-elasticity section can maintain a stable shape when the sealing ring contracts, thereby enhancing the sealing effect. The oil suction holes can absorb light, low-viscosity lubricating oil, enhancing the lubrication effect; at high temperatures, the oil suction holes close, automatically squeezing out low-viscosity lubricating oil, further enhancing the sealing effect.

[0037] In this embodiment of the lubrication device for corrosion-resistant alloy forging equipment, the oil outlet 60 is located on the bottom side of the oil guide pipe 6, and a pressurized gas cylinder 7 is provided at the top of the oil guide pipe 6. The pressurized gas cylinder 7 can effectively drive low-viscosity lubricating oil to quickly enter the oil guide hole 23.

[0038] Preferably, the oil guide tube 6 is a transparent oil guide tube, which makes it easy to observe the remaining oil in the oil guide tube.

[0039] In this embodiment of the lubrication device for the corrosion-resistant alloy forging equipment, a dustproof ring 35 is provided at the bottom of the telescopic ring 4, and the telescopic ring 4 is fitted onto the outside of the piston rod 11 through the dustproof ring 35. The dustproof ring can prevent dust from entering around the sealing ring during shutdown, thereby affecting the operation of the temperature change memory alloy spring 5.

[0040] Furthermore, the inner side of the telescopic ring 4 is provided with two grooves, and each sealing ring is installed on the inner side of the telescopic ring through one of the grooves, thereby improving the sealing effect and making it less likely to fall off.

[0041] Furthermore, the sealing ring 3 is bonded to the inner side of the telescopic ring 4.

[0042] The advantages of the lubrication device for corrosion-resistant alloy forging equipment in this embodiment of the invention are as follows:

[0043] 1. It has a large driving torque and a large opening and closing angle, which significantly prevents lubricating oil leakage;

[0044] 2. The heating and pressurizing devices on the lubrication system can be removed, eliminating the need for additional power and control lines, resulting in low manufacturing costs;

[0045] 3. The double sealing rings correspond to the oil guide holes, allowing low-viscosity lubricating oil to evenly cover the entire piston rod through the gap between the two sealing rings;

[0046] 4. One end of the thermochromic memory alloy spring is connected to the oil cylinder through a fixed plate. When the oil cylinder temperature is high, it can effectively reduce the temperature of the thermochromic memory alloy spring, thereby causing the spring to automatically contract and disconnect the low-viscosity lubricating oil circuit.

[0047] In addition, the lubrication device for corrosion-resistant alloy forging equipment of the present invention has low manufacturing cost, is small and exquisite, has a compact structure design, stable finished product quality, low starting force, good oil leakage prevention effect, and convenient maintenance and repair. It is suitable for starting and lubricating various heavy cylinders.

[0048] The sequence numbers of the above embodiments of the present invention are merely for descriptive purposes and do not represent the superiority or inferiority of the embodiments. Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of some modifications and the superposition of necessary general technologies; of course, they can also be implemented by simplifying some important technical features. Based on this understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, is: the overall structure and connection method, and the structure described in the various embodiments of the present invention.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lubrication device for corrosion-resistant alloy forging equipment, characterized in that, include: Hydraulic cylinder, piston rod, dust cover, sealing ring, and telescopic ring; The hydraulic cylinder has an opening, through which the piston rod is retractably mounted inside the hydraulic cylinder; the dust cover is fixed to the hydraulic cylinder, and a vertical oil guide pipe is fixed inside the dust cover, the oil guide pipe having an oil outlet; The sealing ring is fitted onto the piston rod, and the telescopic ring is fitted onto the outside of the sealing ring; the telescopic ring has a C-shaped structure, which has a fixed end and a telescopic end; the fixed end is connected to the dustproof shell, and a slider is provided on the telescopic end; a temperature-sensitive memory alloy spring is provided between the slider and the dustproof shell; The slider is provided with an oil guide hole; one end of the oil guide hole corresponds to the sealing ring, and the other end corresponds to the oil outlet; the temperature-changing memory alloy spring contracts as the temperature increases, so that the slider moves closer to the fixed end, thereby causing the slider to gradually close the oil outlet.

2. The lubrication device for corrosion-resistant alloy forging equipment according to claim 1, characterized in that, A fixing plate is provided on the dustproof shell, and the fixing plate is used to fix the oil cylinder; the fixing end is connected to the fixing plate.

3. The lubrication device for corrosion-resistant alloy forging equipment according to claim 1, characterized in that, The sealing ring includes two sealing rings; the inner side of the telescopic ring is provided with two annular baffles, the two sealing rings are located between the two annular baffles and are in contact with the two annular baffles respectively.

4. The lubrication device for corrosion-resistant alloy forging equipment according to claim 3, characterized in that, The oil guide hole corresponds to the two sealing rings.

5. The lubrication device for corrosion-resistant alloy forging equipment according to any one of claims 1-4, characterized in that, The sealing ring has a high-elasticity section with multiple oil suction holes; the high-elasticity section corresponds to the temperature-changing memory alloy spring.

6. The lubrication device for corrosion-resistant alloy forging equipment according to any one of claims 1-4, characterized in that, The oil outlet is located on the bottom side of the oil guide pipe, and a pressurized gas cylinder is installed at the top of the oil guide pipe.

7. The lubrication device for corrosion-resistant alloy forging equipment according to claim 6, characterized in that, The oil guide tube is a transparent oil guide tube.

8. The lubrication device for corrosion-resistant alloy forging equipment according to any one of claims 1-4, characterized in that, The bottom of the telescopic ring is provided with a dustproof ring, and the telescopic ring is fitted onto the outside of the piston rod through the dustproof ring.

9. The lubrication device for corrosion-resistant alloy forging equipment according to claim 3, characterized in that, The inner side of the telescopic ring is provided with two grooves, and each sealing ring is installed on the inner side of the telescopic ring through one of the grooves.

10. The lubrication device for corrosion-resistant alloy forging equipment according to any one of claims 1-3, characterized in that, The sealing ring is bonded to the inside of the telescopic ring.

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