Wear-resistant rotor blade adjustment device

Abstract

The embodiments of this disclosure disclose a wear-resistant rotor blade adjustment device and relate to the technical field of intake fans. [Solution] The wear-resistant rotor blade adjustment device includes an oil pump, an adjustment unit, and a blade shaft. The oil pump is connected to the adjustment unit and is used to supply high-pressure oil to the adjustment unit. The adjustment unit is connected to the blade shaft and is used to drive the rotation of the blade shaft with high-pressure oil to adjust the blade angle. The adjustment unit includes a shoe, and surface grease is applied to the surface of the shoe. The surface grease is molybdenum disulfide. By applying molybdenum disulfide grease to the surface of the shoe, wear and friction coefficient are reduced, wear resistance and abrasion reduction performance are improved, the thermal stability and sealing performance of the grease are improved, thereby achieving higher wear resistance and lubrication effect when adjusting the blade angle.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of intake fans, and more specifically to a wear-resistant moving blade adjusting device.

Background Art

[0002] In the field of power machinery, the moving blade adjusting device is an important component for adjusting the flow rate and pressure of fluids. With the continuous development of industrial technology, the moving blade adjusting device is required to have higher wear resistance and lubricity to ensure long-term stable operation.

[0003] Currently, in related technologies, the moving blade adjusting device usually supplies oil fluid by an oil pump, drives the rotation of the blade shaft by an adjusting unit, and thereby adjusts the angle of the blade. However, during the long-term operation process, these components are prone to reduced adjustment accuracy and even failures due to friction and wear.

Summary of the Invention

[0004] The embodiments of the present disclosure propose a wear-resistant moving blade adjusting device.

[0005] In a first aspect, the embodiments of the present disclosure provide a wear-resistant moving blade adjusting device. The moving blade adjusting device includes an oil pump, an adjusting unit, and a blade shaft, the oil pump is connected to the adjusting unit and is used to supply high-pressure oil fluid to the adjusting unit, the adjusting unit is connected to the blade shaft and is used to drive the rotation of the blade shaft by high-pressure oil fluid to adjust the angle of the blade, the adjusting unit includes shoes, surface grease is applied to the surface of the shoes, and the surface grease is molybdenum disulfide.

[0006] In some embodiments, the materials of the shoes include tin, aluminum, iron, nickel, and manganese.

[0007] In some embodiments, the adjustment unit is Further including an adjustment ring and an adjustment arm, The adjustment ring and adjustment arm are connected by a shoe, and the adjustment ring is used by the shoe to drive the rotation of the adjustment arm.

[0008] In some embodiments, the adjustment unit is Further includes adjustment discs, The adjustment ring includes an inner adjustment ring and an outer adjustment ring. The outer circle of the adjustment disc is fixed by the inner and outer adjustment rings to clamp the shoe, and the adjustment disc is used to drive the inner and outer adjustment rings and the shoe to reciprocate in the direction of the transmission axis.

[0009] In some embodiments, the axial hole of the shoe is fitted onto the pin shaft of the adjustment arm and is used to drive the adjustment arm to rotate axially in a direction perpendicular to the transmission shaft.

[0010] In some embodiments, one end of the blade shaft is connected to an adjustment arm, and the other end of the blade shaft is connected to a blade. The blade shaft rotates via the rotation of the adjustment arm and is used to adjust the angle of the blades.

[0011] In some embodiments, the adjustment disc is Includes a first-stage adjustment disc and a second-stage adjustment disc, The first-stage adjustment disc and the second-stage adjustment disc are connected by a transmission shaft and are used to drive the two-stage blades to open and close synchronously.

[0012] In some embodiments, the adjustment unit is Further including a hydraulic cylinder, The oil pump is connected to the hydraulic cylinder and is used to supply high-pressure oil to the hydraulic cylinder, thereby propelling the piston of the hydraulic cylinder to reciprocate. The piston of the hydraulic cylinder is connected to an adjustment disc and is used to drive the movement of the adjustment disc.

[0013] In some embodiments, the rotor blade adjustment device is It further includes sensors and control systems, The sensor is connected to the control system and also to the blades. The sensor is used to monitor the blade condition and transmit the blade condition to the control system.

[0014] In some embodiments, the control system is connected to the oil pump and is used to control the operating state of the oil pump according to the impeller state.

[0015] Based on the above, the embodiments of the present disclosure provide a wear-resistant rotor blade adjustment device. The wear-resistant rotor blade adjustment device includes an oil pump, an adjustment unit, and a blade shaft. The oil pump is connected to the adjustment unit and is used to supply high-pressure oil to the adjustment unit. The adjustment unit is connected to the blade shaft and is used to drive the rotation of the blade shaft with high-pressure oil to adjust the blade angle. The adjustment unit includes a shoe, on which surface grease is applied. The surface grease is molybdenum disulfide. By applying molybdenum disulfide grease to the surface of the shoe, wear and friction coefficient are reduced, wear resistance and abrasion reduction performance are improved, the thermal stability and sealing performance of the grease are improved, and thereby higher wear resistance and lubrication effect are achieved when adjusting the blade angle. [Brief explanation of the drawing]

[0016] To more clearly explain the technical solutions in the embodiments of the present disclosure or the prior art, the following briefly introduces the drawings that need to be used in the description of the embodiments or the prior art. Of course, the following drawings are only some examples or embodiments of the present disclosure. A person skilled in the art can conceive of other drawings based on the shown drawings without creative effort, and can also apply the present disclosure to other similar scenarios based on the shown drawings. Unless it is clear from the context of the language or there is a separate explanation, the same reference numerals in the drawings represent the same structure or operation.

[0017] [Figure 1] It is a structural schematic diagram of an anti-wear moving blade adjusting device according to an embodiment of the present disclosure. [Figure 2] It is a structural schematic diagram of a specific anti-wear moving blade adjusting device according to an embodiment of the present disclosure.

Embodiments for Carrying out the Invention

[0018] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only for interpreting the related invention and are not intended to limit the invention. Also, the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person skilled in the art without creative effort belong to the protection scope of the present disclosure.

[0019] It should be noted that for the convenience of explanation, only the parts related to the invention are shown in the drawings. The embodiments and features in the embodiments of the present disclosure can be combined with each other as long as they do not conflict.

[0020] It should be understood that the "system", "device", "unit" and / or "module" used in the present disclosure is a way to distinguish different components, elements, members, parts or assemblies at different levels. However, other expressions may be used instead as long as they can achieve the same purpose.

[0021] As shown in the present disclosure and the claims, unless clearly indicated in the context, terms such as "a", "one", "a kind", and / or "the" do not particularly refer to the singular form and may also include the plural form. Generally, the terms "comprising" and "including" merely present including the specifically identified steps and elements, and these steps and elements do not constitute an exclusive listing, and the method or device may also include other steps or elements. Elements limited by the phrase "comprising one..." do not exclude the further existence of the same other elements in the process, method, product or device that includes the element.

[0022] Here, in the description of the embodiments of the present disclosure, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" in this specification is only for describing the relationship of the related objects, indicating that three relationships are possible. For example, A and / or B may indicate three cases: only A exists, A and B exist simultaneously, and only B exists. Also, in the description of the embodiments of the present disclosure, "a plurality" refers to two or more.

[0023] Hereinafter, the terms "first" and "second" are only for the purpose of explanation and should not be understood as explicitly or implicitly indicating relative importance or implying the number of the technical features to be described. Therefore, the features limited by "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] In the present disclosure, flowcharts are used to explain the operations performed by the system according to the embodiments of the present disclosure. It should be understood that the previous or subsequent operations are not necessarily executed exactly in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can be added to these processes, or the operations of one or more steps can be removed from these processes.

[0025] In the field of power machinery, rotor blade adjusters are crucial components for regulating fluid flow rate and pressure. With the continuous advancement of industrial technology, rotor blade adjusters require higher wear resistance and lubricity to ensure long-term stable operation.

[0026] Currently, rotor blade adjustment devices in related technologies typically use an oil pump to supply oil, and an adjustment unit to drive the rotation of the blade shaft, thereby adjusting the blade angle. However, these components often experience reduced adjustment accuracy and eventual failure due to friction and wear during prolonged operation.

[0027] This disclosure proposes a wear-resistant rotor blade adjustment device to solve problems in related technologies. By applying molybdenum disulfide grease to the surface of the shoe, wear and friction coefficient are significantly reduced, improving wear resistance and abrasion reduction. At the same time, molybdenum disulfide grease further improves the thermal stability and sealing properties of the grease, making blade angle adjustment smoother and more stable, thereby achieving higher wear resistance and lubrication effect, and extending the service life of the device.

[0028] Referring to Figure 1, which is a schematic diagram of the structure of the wear-resistant rotor blade adjustment device, the wear-resistant rotor blade adjustment device is Includes an oil pump 1, an adjustment unit 2, and a blade shaft 3. The oil pump 1 is connected to the adjustment unit 2 and is used to supply high-pressure oil to the adjustment unit 2. The adjustment unit 2 is connected to the blade shaft 3 and is used to drive the rotation of the blade shaft 3 with high-pressure oil and to adjust the angle of the blades. The adjustment unit 2 includes a shoe 21, on which surface grease is applied, and the surface grease is molybdenum disulfide.

[0029] In this disclosure, a high-pressure oil solution is supplied to an adjustment unit 2 by an oil pump 1, and a shoe 21 inside the adjustment unit 2 (its surface is coated with molybdenum disulfide surface grease to enhance wear resistance) drives the rotation of the blade shaft 3 by the oil solution pressure, thereby precisely adjusting the blade angle and achieving wear resistance adjustment of the rotor blade.

[0030] The dropping point of a surface grease can reflect the upper limit of its operating temperature. Once a surface grease reaches its dropping point, it loses its ability to adhere to metal surfaces. Generally, surface greases should be used under temperature conditions of 20-30°C or less above the dropping point. The operating ambient temperature of an intake fan is 100-120°C, the dropping point of molybdenum disulfide is 194°C, and the maximum allowable temperature is 164°C. Therefore, this disclosure selects molybdenum disulfide as the surface grease to form a protective plating layer on the shoe working surface, thereby reducing the initial surface roughness of the shoe working surface during wear.

[0031] Furthermore, this disclosure allows for limiting the amount of blade oscillation, which refers to the amount of dynamic deformation of a blade in a rotating machine due to various factors, and is usually called blade bounce. The amount of blade oscillation is the magnitude of the amount of dynamic deformation of the blade during rotation. The amount of blade oscillation can reflect the gap in the shoe and is used to determine the degree of shoe wear. The larger the amount of blade oscillation, the larger the gap in the shoe becomes, and the more severe the degree of shoe wear becomes. Therefore, in this disclosure, the amount of blade oscillation needs to be between 3 mm and 5 mm.

[0032] Specifically, for ease of understanding, as shown in Figure 2, this disclosure provides a more specific wear-resistant rotor blade conditioning device.

[0033] In some embodiments, the material of the shoe 21 may be tin, aluminum, iron, nickel, or manganese. In this disclosure, by selecting these materials, the wear resistance, hardness, and service life of the shoe can be further improved to adapt to different operating environments and load requirements, thereby avoiding excessive relative hardness between the adjustment ring and the shoe, which could severely damage the shoe.

[0034] Specifically, in the shoe material of this disclosure, the mass proportion of tin (Sn) is reduced, aluminum (Al), which has better wear resistance and very high oxidation and corrosion resistance, is added, the iron (Fe) content is further increased, and nickel (Ni) is newly added to further enhance the hardness and wear resistance of the alloy. Since it is considered that a low manganese (Mn) content helps to improve the electrochemical corrosion resistance of copper-based alloys, a small amount of manganese (Mn) is added to further improve the wear resistance of the shoe.

[0035] In some embodiments, the adjustment unit 2 further includes an adjustment ring 22 and an adjustment arm 23, the adjustment ring 22 and the adjustment arm 23 being connected by a shoe 21, the adjustment ring 22 being used by the shoe 21 to drive the rotation of the adjustment arm 23, that is, the adjustment ring 22 can be driven by the shoe 21 to rotate the adjustment arm 23, thereby achieving angle adjustment of the blades.

[0036] In the rotor blade adjustment process, the shoe and the adjustment ring come into contact with each other, generating relative frictional motion. During this relative frictional motion, it is necessary to overcome the resistance caused by the unevenness of the component surfaces, and wear of the components occurs during the motion. Therefore, the roughness of the shoe surface affects the degree of frictional motion. Due to the above factors, this disclosure employs a shoe on which molybdenum disulfide surface grease is applied to the surface.

[0037] In some embodiments, the adjustment unit 2 further includes an adjustment disc 24, and the adjustment ring 22 includes an inner adjustment ring 221 and an outer adjustment ring 222, the outer circle of the adjustment disc 24 is fixed by the inner adjustment ring 221 and the outer adjustment ring 222 to clamp the shoe, and the adjustment disc 24 is used to drive the inner adjustment ring 221, the outer adjustment ring 222 and the shoe 21 to reciprocate in the transmission axis direction, and further to precisely adjust the blade angle.

[0038] In some embodiments, the shaft hole of the shoe 21 is fitted onto the pin shaft of the adjustment arm 23 and is used to drive the adjustment arm to rotate axially in a direction perpendicular to the transmission shaft. This method of rotation allows for more flexible and precise adjustment of the blade angle.

[0039] In some embodiments, one end of the blade shaft 3 is connected to an adjustment arm 23, and the other end of the blade shaft 3 is connected to a blade. The blade shaft 3 rotates due to the rotation of the adjustment arm 23 and is used to adjust the angle of the blade.

[0040] In some embodiments, the adjustment disc 24 includes a first-stage adjustment disc and a second-stage adjustment disc, which are connected by a transmission shaft and used to drive the two-stage blades to open and close synchronously. That is, when adjusting the angle of the first-stage blade, the angle of the second-stage blade is also adjusted accordingly, thereby ensuring the coordination and stability of the entire rotor blade adjustment device.

[0041] In some embodiments, the adjustment unit 2 further includes a hydraulic cylinder 25, and an oil pump 1 is connected to the hydraulic cylinder 25 and used to supply high-pressure oil to the hydraulic cylinder 25 and propel the piston of the hydraulic cylinder 25 to reciprocate, and the piston of the hydraulic cylinder 25 is connected to an adjustment disc 24 and used to drive the movement of the adjustment disc.

[0042] The hydraulic cylinder 25 is connected to the oil pump 1 and receives high-pressure oil supplied from the oil pump 1. When the oil pump 1 supplies high-pressure oil to the hydraulic cylinder 25, the piston of the hydraulic cylinder 25 reciprocates. Since the piston is connected to the adjustment disc 24, the movement of the piston drives the movement of the adjustment disc 24, thereby achieving precise angle adjustment with respect to the blades. Such a design not only improves adjustment accuracy but also gives the entire rotor blade adjustment device higher response speed and stability.

[0043] In some embodiments, the rotor blade adjustment device further includes a sensor 4 and a control system 5, the sensor 4 being connected to the control system 5 and also to the blade, and the sensor 4 is used to monitor the blade state and transmit the blade state to the control system.

[0044] In some embodiments, the control system 5 is connected to the oil pump 1 and is used to control the operating state of the oil pump 1 according to the impeller state.

[0045] This disclosure provides a system that uses a sensor 4 to monitor the condition of the blades (e.g., deformation, cracks, vibration, and temperature of the blades) in real time and transmits this information to a control system 5. The control system 5 analyzes the sensor data to make decisions and then adjusts the operating conditions of the oil pump 1, such as flow rate and pressure, based on these decisions, thereby enabling precise adjustment of the blade angle.

[0046] In the rotor blade adjustment device, the sensor 4, control system 5, and oil pump 1 form a closed-loop control system. The sensor is responsible for collecting blade state information, the control system is responsible for analysis and decision-making, and the oil pump adjusts its operating state according to the commands of the control system, thereby ensuring accurate adjustment of the blade angle and stable operation of the system. This improves the efficiency and reliability of the rotor blade adjustment device.

[0047] As described above, the wear-resistant rotor blade adjustment device of this disclosure includes an oil pump, an adjustment unit, and a blade shaft. The oil pump is connected to the adjustment unit and is used to supply high-pressure oil to the adjustment unit. The adjustment unit is connected to the blade shaft and is used to drive the rotation of the blade shaft with high-pressure oil and to adjust the blade angle. The adjustment unit includes a shoe, and surface grease is applied to the surface of the shoe. The surface grease is molybdenum disulfide. By applying molybdenum disulfide grease to the surface of the shoe, wear and friction coefficient are reduced, wear resistance and abrasion reduction performance are improved, the thermal stability and sealing performance of the grease are improved, and thereby higher wear resistance and lubrication effect are achieved when adjusting the blade angle.

[0048] This disclosure will be described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products relating to embodiments of this disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be realized by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a dedicated computer, an embedded processor, or other programmable data processing device to manufacture a machine, thereby creating means for realizing a function specified in one or more flows and / or blocks in one or more blocks of a flowchart and / or block diagram.

[0049] These computer program instructions may be stored in computer-readable memory capable of instructing a computer or other programmable data processing device to operate in a particular manner, thereby creating a product that includes instruction means for implementing a function specified in one or more flows of a flowchart and / or one or more blocks of a block diagram.

[0050] These computer program instructions may be loaded into a computer or other programmable data processing device to cause the computer or other programmable data processing device to execute a series of operational steps so that the instructions executed in the computer or other programmable data processing device provide steps to realize a function specified in one or more flows of a flowchart and / or one or more blocks of a block diagram.

[0051] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0052] Memory can take the form of non-persistent memory, random access memory (RAM), and / or non-volatile memory in a computer-readable medium, such as read-only memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

[0053] Computer-readable media include persistent and non-persistent, movable and immovable media, and information can be stored by any method or technique. Information may be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random-access memory (SRAM), dynamic random-access memory (DRAM), other types of random-access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital multipurpose disc (DVD) or other optical memory, magnetic cartridge-type magnetic tape, magnetic tape magnetic disk memory or other magnetic storage devices or any other non-transmission media, which can be used to store information accessible by computing equipment. As limited herein, computer-readable media does not include transient computer-readable media such as modulated data signals and carrier waves.

[0054] Those skilled in the art will understand that the embodiments of this disclosure can be provided as methods, systems, or computer program products. Accordingly, this disclosure may take the form of complete hardware embodiments, complete software embodiments, or embodiments combining software and hardware. Furthermore, this disclosure may take the form of a computer program product implemented on one or more computer-available storage media (including, but not limited to, magnetic disk memory, CD-ROM, optical memory, etc.) containing computer-available program code.

[0055] The foregoing description is merely a description of preferred embodiments and applicable technical principles of the Disclosure and is not intended to limit the Disclosure. To those skilled in the art, the Disclosure is subject to various modifications and changes. The scope of the inventions relating to the Disclosure is not limited to technical solutions formed by specific combinations of the above technical features, but should also include other technical solutions formed by arbitrarily combining the above technical features or equivalent features without departing from the concept of the Invention. For example, it includes technical solutions formed by substituting the above features with technical features having similar functions as disclosed (but not limited to) in this Disclosure.

Claims

1. Including the oil pump, adjustment unit and impeller shaft, The oil pump is connected to the adjustment unit and is used to supply high-pressure oil to the adjustment unit. The adjustment unit is connected to the blade shaft and is used to drive the rotation of the blade shaft with the high-pressure oil to adjust the blade angle. The adjustment unit includes a shoe, Surface grease is applied to the surface of the shoe, and the surface grease is molybdenum disulfide. A wear-resistant rotor blade adjustment device characterized by the following features.

2. The rotor blade adjustment device according to claim 1, characterized in that the material of the shoe can be tin, aluminum, iron, nickel, or manganese.

3. The aforementioned adjustment unit is Further including an adjustment ring and an adjustment arm, The adjustment ring and the adjustment arm are connected by the shoe, and the adjustment ring is used to drive the rotation of the adjustment arm by the shoe. The rotor blade adjustment device according to claim 2, characterized in that

4. The aforementioned adjustment unit is Further includes adjustment discs, The adjustment ring includes an inner adjustment ring and an outer adjustment ring. The outer circle of the adjustment disc is fixed by the inner adjustment ring and the outer adjustment ring to clamp the shoe, and the adjustment disc is used to drive the inner adjustment ring, the outer adjustment ring and the shoe to reciprocate in the direction of the transmission axis. The rotor blade adjustment device according to claim 3, characterized in that

5. The blade adjustment device according to claim 4, characterized in that the shaft hole of the shoe is fitted onto the pin shaft of the adjustment arm and is used to drive the adjustment arm to rotate axially in a direction perpendicular to the transmission shaft.

6. One end of the blade shaft is connected to the adjustment arm, and the other end of the blade shaft is connected to the blade. The blade adjustment device according to claim 5, characterized in that the blade shaft rotates by the rotation of the adjustment arm and is used to adjust the angle of the blade.

7. The adjustment disc is Includes a first-stage adjustment disc and a second-stage adjustment disc, The first stage adjustment disc and the second stage adjustment disc are connected by a transmission shaft and are used to drive the two stages of the vane to open and close synchronously. The rotor blade adjustment device according to claim 4, characterized in that

8. The aforementioned adjustment unit is Further including a hydraulic cylinder, The oil pump is connected to the hydraulic cylinder and is used to supply high-pressure oil to the hydraulic cylinder and to propel the piston of the hydraulic cylinder in a reciprocating motion. The piston of the hydraulic cylinder is connected to the adjustment disc and is used to drive the movement of the adjustment disc. The rotor blade adjustment device according to claim 4, characterized in that

9. It further includes sensors and control systems, The sensor is connected to the control system and to the blade, and is used to monitor the blade state and transmit the blade state to the control system. The rotor blade adjustment device according to claim 1, characterized in that

10. The blade adjustment device according to claim 9, characterized in that the control system is connected to the oil pump and is used to control the operating state of the oil pump according to the blade state.

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