An assembly apparatus and method for a turbine guide vane assembly

Abstract

The application provides an assembling device and method of a turbine guide vane assembly, and relates to the field of turbine guide vane assembly installation. The application aims to provide an assembling device which can reduce the assembling time of the turbine guide vane assembly. The assembling device comprises a bearing seat and a measuring device. The measuring device is used to detect a pre-assembly precision parameter of a guide vane and a support. The guide vane can be adjusted in relative position with the support or replaced according to the pre-assembly precision parameter. When it is detected that the pre-assembly precision parameter does not meet the requirement, the guide vane which does not meet the precision parameter requirement can be directly adjusted or replaced locally, so that the guide vane and the support are fixed after meeting the precision requirement, and the assembling is completed. In this way, the precision parameter can be accurately obtained during the assembling process, the adjustment is more targeted, and the overall assembling time is reduced.

Description

Technical Field

[0001] This application relates to the field of turbine guide assembly installation, and more particularly to an assembly apparatus and assembly method for a turbine guide assembly. Background Technology

[0002] In gas turbine equipment, the high-pressure turbine guide unit (HPTN) plays a role in guiding airflow and adjusting the airflow angle.

[0003] The high-pressure turbine guide assembly consists of multiple parts. When installing the high-pressure turbine guide assembly, multiple parts need to be assembled together and error checked. If the error check fails, due to the interaction force between the parts, the parts need to be disassembled and reassembled until the error check passes.

[0004] In the existing technology, there is a problem of wasted time in the assembly process of high-pressure turbine guide vanes. Summary of the Invention

[0005] The purpose of this application is to provide an assembly apparatus and assembly method for a turbine guide vane assembly, with the aim of providing an assembly apparatus that can reduce the assembly time of the turbine guide vane assembly.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides an assembly apparatus for a turbine guide vane assembly. The turbine guide vane assembly includes a support member and guide vanes. The assembly apparatus includes a bearing seat and a measuring device, wherein the bearing seat supports the support member, and the guide vanes are pre-assembled onto the support member. The measuring device is used to detect a first pre-assembly accuracy parameter between the guide vanes and the support member, and the guide vanes can be adjusted or replaced according to the first pre-assembly accuracy parameter.

[0008] The assembly device of this application can detect the first pre-assembly accuracy parameters of the guide vane and support component during the pre-assembly stage. When the first pre-assembly accuracy parameters are found to be unsatisfactory, the guide vane that does not meet the accuracy parameter requirements can be directly adjusted or replaced locally, thereby fixing the guide vane and support component after meeting the accuracy requirements, thus completing the assembly. In this way, the accuracy parameters can be accurately obtained during the assembly process, making adjustments more targeted, increasing the possibility of adjusting correctly on the first attempt, avoiding multiple blind disassembly and adjustment, and thus reducing the overall assembly time.

[0009] In one possible implementation, the support includes a support body and a connecting arm. The support body supports the support member, the measuring device is connected to the connecting arm, and the support body and the connecting arm are rotatable relative to each other.

[0010] In one possible implementation, the support base further includes a fixed base, the support base body is rotatably supported on the fixed base, and the connecting arm is fixed to the fixed base.

[0011] In one possible implementation, the support also includes a rolling assembly located between the support body and the fixed base.

[0012] In one possible implementation, the rolling assembly includes balls and a mounting member. The mounting member is connected to a carrier body and includes a receiving cavity with an opening. The opening faces the fixed base. The balls are received in the receiving cavity, and at least a portion of the balls are in roll-connected to the fixed base through the opening.

[0013] In one possible implementation, the support body has a receiving groove on the side facing the fixed base, and the rolling assembly is located in the receiving groove.

[0014] In one possible implementation, the support body includes a positioning groove. The positioning groove is disposed on the surface of the support opposite to the fixed base. The positioning groove is used to position the support member when the support member is supported.

[0015] In one possible implementation, the support includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are arranged along the rotation direction of the support body. One of the first limiting member and the second limiting member is connected to a fixed base, and the other is connected to the support body. The first limiting member and the second limiting member cooperate to stop and limit the maximum rotation angle of the support body.

[0016] In one possible implementation, there are multiple guide vanes arranged in a circular array along the circumference of the support member and pre-assembled onto the support member. A bearing body supports the support member, and its rotation axis is parallel or collinear with the array axis of the multiple guide vanes. A measuring device is used to detect a first pre-assembly accuracy parameter between the multiple guide vanes and the support member. The multiple guide vanes can be adjusted or replaced relative to the support member based on this first pre-assembly accuracy parameter.

[0017] In one possible implementation, the first pre-assembly accuracy parameters of the plurality of guide vanes and the support include the radial runout of the outer edges of the plurality of guide vanes, the radius of the outer edges of the plurality of guide vanes, the radial runout of the inner edges of the plurality of guide vanes, and the radius of the inner edges of the plurality of guide vanes.

[0018] In one possible implementation, the measuring device is also used to detect positioning accuracy parameters of the support member relative to the carrier body. These positioning accuracy parameters include the circular runout of the end face of the support member facing away from the carrier body and the inner edge radius of the end of the support member facing away from the carrier body.

[0019] In one possible implementation, the measuring device is further configured to detect a first positional accuracy parameter of the plurality of guide vanes relative to the carrier body. The first positional accuracy parameter includes the distance from the outer edge of the plurality of guide vanes to the carrier body and the distance from the inner edge of the plurality of guide vanes to the carrier body.

[0020] In one possible implementation, the turbine guide assembly further includes multiple sealing elements spaced apart from the guide vanes along the radial direction of the support member. The sealing elements are arranged in a circular array along the circumference of the support member and are pre-assembled onto it. A measuring device is also used to detect a second pre-assembly accuracy parameter between the multiple sealing elements and the support member. The multiple sealing elements can be adjusted or replaced according to the second pre-assembly accuracy parameter. The second pre-assembly accuracy parameter includes the outer edge radius and inner edge diameter of the multiple sealing elements.

[0021] In one possible implementation, the measuring device is further configured to detect a second positional accuracy parameter of the plurality of sealing elements relative to the support body, wherein the plurality of sealing elements can be adjusted or replaced relative to the support element based on the second positional accuracy parameter. The second positional accuracy parameter includes the distance from the inner edge of the plurality of sealing elements to the support body.

[0022] Secondly, a method for assembling a turbine guide vane assembly is provided, employing the assembly apparatus provided in any embodiment of the first aspect. The method for assembling the turbine guide vane assembly includes placing the pre-assembled assembly of the guide vane and support member on a support seat, using a measuring device to detect a first pre-assembly accuracy parameter of the guide vane and support member, and adjusting the relative position of the guide vane and support member according to the first pre-assembly accuracy parameter, or replacing the guide vane and fixing the relative position of the guide vane and support member. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded view of a turbine guide assembly provided in one embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the assembly device provided in one embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the structure of a support provided in one embodiment of this application;

[0027] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 5 A schematic diagram of the measurement position of a turbine guide assembly provided in one embodiment of this application;

[0029] Figure 6 for Figure 5 A schematic diagram of some measurement locations of the turbine guide assembly;

[0030] Figure 7 A flowchart illustrating a method for assembling a turbine guide assembly provided in this application.

[0031] Figure label:

[0032] 100-Turbine guide assembly;

[0033] 01-Support component; 02-Guide vane; 03-Sealing component;

[0034] 200 - Assembly device;

[0035] 1-Bearing seat; 11-Bearing seat body; 111-Receiving groove; 112-Positioning groove; 12-Connecting arm; 13-Fixed base; 14-Rolling assembly; 141-Ball; 142-Mounting component; 143-Opening; 15-First limiting component; 16-Second limiting component. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" 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 direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0040] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0041] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0042] This application provides an assembly apparatus and assembly method for a turbine guide vane assembly. To facilitate the description of the embodiments below, before introducing the embodiments of this application, some technical terms that will be mentioned in the embodiments of this application will be introduced first, specifically:

[0043] Circular runout: Circular runout refers to the difference between the maximum and minimum readings measured by a fixed indicator in a given direction when the measured feature rotates one revolution around a reference axis. Circular runout tolerance is the maximum allowable variation in the indicator value when the measured feature rotates one revolution around a reference axis at a fixed reference point (without axial displacement of the part or measuring instrument).

[0044] Circular runout tolerance: Circular runout tolerance can be divided into four categories according to the geometric characteristics of the measured element and the measurement direction: radial circular runout tolerance, axial circular runout tolerance, oblique circular runout tolerance, and oblique (given angle) circular runout tolerance.

[0045] Radial runout tolerance: When a cylindrical surface rotates around a reference axis without axial movement, the radial runout in any measuring plane shall not exceed the tolerance value of 0.05mm.

[0046] End face circular runout tolerance zone: When the measured part rotates around the reference axis without axial movement for one revolution, the axial runout at any measuring diameter on the measured surface shall not exceed the tolerance value of 0.05mm.

[0047] Turbine guide vane assembly: The turbine guide vane assembly is an important component of the turbine, located between the high-pressure axial flow section and the low-pressure axial flow section of the turbine. Its main function is to guide the airflow, so that the airflow flows along the correct flow path and ensures that the airflow can smoothly enter the next stage.

[0048] Guide vanes: Guide vanes are a crucial component of turbine guide vanes. Made of high-temperature alloy materials, they can withstand the impact and corrosion of high-temperature, high-pressure steam. The number, shape, and layout of guide vanes have a decisive influence on turbine performance. Guide vanes control the direction of gas flow to achieve guidance and flow regulation.

[0049] like Figure 1 and Figure 2 As shown, this application provides an assembly apparatus 200 for a turbine guide vane assembly 100. The turbine guide vane assembly 100 includes a support member 01 and guide vanes 02. The support member 01 provides an assembly position for the guide vanes 02, which are pre-assembled onto the support member 01.

[0050] The assembly device 200 includes a support 1 and a measuring device, wherein the support 1 is used to support the support member 01.

[0051] The measuring device is used to detect the first pre-assembly accuracy parameter between the guide vane 02 and the support 01. The guide vane 02 can be adjusted or replaced relative to the support 01 according to the first pre-assembly accuracy parameter.

[0052] The assembly device 200 of this application can detect the first pre-assembly accuracy parameter of the guide vane 02 and the support member 01 during the pre-assembly stage. Once the first pre-assembly accuracy parameter is detected as not meeting the requirements, the assembly personnel can directly make local adjustments to the guide vane 02 that does not meet the accuracy parameter requirements. When the first pre-assembly accuracy parameter has a large error, the assembly personnel can replace the guide vane 02. After the guide vane 02 and the support member 01 meet the accuracy requirements, the assembly personnel fix the guide vane 02, thereby completing the assembly.

[0053] In this way, the precision parameters can be accurately obtained during the assembly process, making adjustments more targeted and increasing the possibility of adjusting correctly on the first try. This avoids the situation of blindly disassembling and adjusting multiple times, thereby reducing the overall assembly time.

[0054] It should be noted that during the pre-assembly stage, the guide vane 02 is connected to the support 01, but not completely fixed. The guide vane 02 has a certain amount of movement so that it can be adjusted if the assembly accuracy parameters of the guide vane 02 are not up to standard.

[0055] The embodiments of this application will be described in detail below with reference to the accompanying drawings, and the application scenarios of the embodiments of this application will be introduced first before the detailed description of the embodiments of this application.

[0056] The assembly apparatus 200 for the turbine guide vane assembly 100 provided in this application is used for assembling the turbine guide vane assembly 100. Specifically, the assembly apparatus 200 provided in this application is used for assembling the high-pressure turbine first-stage guide vane assembly (HPTN1).

[0057] According to the manual, when assembling the high-pressure turbine first-stage guide assembly, the high-pressure turbine first-stage guide assembly needs to be assembled first and then moved to a vertical grinding machine (VTL) to measure the dimensions.

[0058] During actual assembly, operators found that the assembly positions between two parts were not fixed, resulting in large clearances. Since vertical grinding machines require high precision, this easily leads to defects. Defective high-pressure turbine first-stage guide vanes require disassembly and reinstallation. This wastes time, reduces efficiency, and can potentially delay maintenance schedules.

[0059] The time wastage is even more severe when assembly and measurement are handled by different departments or workshops.

[0060] The assembly apparatus 200 provided in this application is used for assembling a high-pressure turbine first-stage guide vane assembly. During the assembly process, it accurately measures the precision parameters of the guide vane 02. This makes the assembled high-pressure turbine first-stage guide vane assembly easier to measure using a vertical grinding machine, thereby saving manpower and time.

[0061] See also Figure 2 and Figure 3 and combined Figure 1 As shown, in one possible implementation, the support 1 includes a support body 11 and a connecting arm 12. The support body 11 is used to support the support member 01, and the measuring device is connected to the connecting arm 12. The support body 11 and the connecting arm 12 are rotatable relative to each other.

[0062] The support body 11 supports the support member 01. When the support body 11 and the connecting arm 12 can rotate relative to each other, the support body 11 drives the support member 01 and the connecting arm 12 to rotate relative to each other. In this way, the measuring device can perform measurements at different angles around the support member 01 and the guide vane 02 on the support body 1. The assembly personnel can adjust the position of the measuring device or the support body 1 according to the actual situation to facilitate installation, testing and other operations.

[0063] Meanwhile, during the inspection and assembly process, it is sometimes necessary to precisely align the probe or tool of the measuring device with specific measuring points or assembly positions on the guide vane 02 and the support 01. By rotating the bearing body 11 and the connecting arm 12 relative to each other, assembly personnel can more easily and accurately perform this alignment operation, improving the accuracy of measurement and assembly.

[0064] For example, the connecting arm 12 is located on the axis of the support body 11, and the support body 11 can rotate about the connecting arm 12.

[0065] For example, the connecting arm 12 is located on the axis of the parallel support body 11, and the connecting arm 12 can rotate around the support body 11.

[0066] See also Figure 2 and combined Figure 1 As shown, in one possible implementation, the support 1 further includes a fixed base 13, the support body 11 is rotatably supported on the fixed base 13, and the connecting arm 12 is fixed to the fixed base 13.

[0067] The fixed base 13 provides a stable support foundation for the bearing body 11 and the connecting arm 12.

[0068] The bearing body 11 is rotatably mounted on the fixed base 13. When the bearing body 11 rotates, it bears the weight of components such as the support 01 and guide vane 02, as well as various forces generated during the assembly process, thereby reducing the shaking or displacement of the assembly device 200 due to force during operation and improving assembly accuracy.

[0069] The bearing body 11 and the fixed base 13 can be arranged coaxially.

[0070] For example, the support body 11 and the fixed base 13 are stacked along their axial direction. The fixed base 13 is located below and can be placed on the surface to be placed. The support body 11 is located above the fixed base 13, and the connecting arm 12 passes through the support body 11 and is connected to the fixed base 13. This arrangement reduces the circumferential space occupied by the support body 11. Furthermore, it reduces the encroachment on the assembly personnel's position and facilitates their operation.

[0071] For example, the support body 11 is disposed on the periphery of the fixed base 13. This reduces the space occupied in the axial direction and lowers the height of the turbine guide assembly 100 supported on the support body 11, making it easier for assembly personnel to operate.

[0072] For example, the fixed base 13 is disposed on the periphery of the support body 11. This reduces the space occupied in the axial direction and lowers the height of the turbine guide assembly 100 supported on the support body 11, making it easier for assembly personnel to operate.

[0073] like Figure 2 and Figure 4 As shown, in one possible implementation, the support 1 further includes a rolling assembly 14. The rolling assembly 14 is located between the support body 11 and the fixed base 13.

[0074] A rolling assembly 14 is provided between the bearing body 11 and the fixed base 13. This reduces the frictional force when the bearing body 11 and the fixed base 13 rotate relative to each other, thereby improving rotational flexibility and accuracy.

[0075] Meanwhile, the rolling component 14 can reduce wear and extend service life.

[0076] For example, the rolling assembly 14 is located on the side of the carrier body 11 facing the fixed base 13 and is connected to the carrier body 11. The connection method includes, but is not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, locking connection, magnetic connection, adhesive or welding.

[0077] For example, the rolling assembly 14 is located on the side of the fixed base 13 facing the carrier body 11 and is connected to the fixed base 13. The connection method includes, but is not limited to, at least one of the following: bolt connection, snap-fit, plug-in, locking connection, magnetic connection, adhesive or welding.

[0078] See also Figure 4 In one possible implementation, the rolling assembly 14 includes a ball 141 and a mounting member 142. The mounting member 142 is connected to the carrier body 11 and includes a receiving cavity with an opening 143. The opening 143 faces the fixed base 13. The ball 141 is received in the receiving cavity, and at least a portion of the ball 141 is rotatably connected to the fixed base 13 through the opening 143.

[0079] The ball bearings 141 can reduce the frictional force when the bearing body 11 and the fixed base 13 rotate relative to each other.

[0080] The mounting component 142 restricts the ball bearing 141, and the accommodating cavity provides a specific installation space for the ball bearing 141, limiting the ball bearing 141 within a certain range and preventing the ball bearing 141 from rolling and scattering randomly during use. At the same time, it makes the connection between the entire rolling assembly 14, the bearing body 11, and the fixed base 13 more regular, improving the stability of the overall structure of the bearing 1 and the space utilization rate.

[0081] See also Figure 2 and Figure 4 In one possible implementation, the support body 11 is provided with a receiving groove 111 on the side facing the fixed base 13, and the rolling assembly 14 is located in the receiving groove 111.

[0082] The receiving groove 111 provides an embedded mounting space for the rolling assembly 14, allowing the rolling assembly 14 to be partially or fully embedded inside the carrier body 11. This effectively reduces the vertical space occupied.

[0083] The rolling assembly 14 is disposed in the receiving groove 111, causing the center of gravity of the support body 11 to shift relatively downward. Because the rolling assembly 14 is positioned closer to the fixed base 13, the mass distribution of the entire support body 1 system is more uniform and biased towards the bottom. When the support body 11 rotates or is subjected to external forces, the lower center of gravity reduces the risk of tipping due to center of gravity shift, improving the stability and reliability of the support body 1 under various working conditions.

[0084] See also Figure 2 and Figure 4 In one possible implementation, the support 1 further includes a positioning groove 112. The positioning groove 112 is disposed on the surface of the support body 11 facing away from the fixed base 13. The positioning groove 112 is used to position the support member 01 when the support 1 carries the support member 01.

[0085] The positioning groove 112 can provide a precise positioning reference for the support 01, so that when the support 01 is installed on the bearing seat 1, it can be accurately placed in the predetermined position, which facilitates the quick and accurate determination of the relative position between the support 01 and the bearing seat 1, reduces the adjustment and trial and error time during the assembly process, improves the assembly efficiency, and reduces the assembly difficulty.

[0086] During the repeated installation and disassembly of the support component 01, the positioning groove 112 enables the support component 01 to be accurately positioned in the same position each time, thus improving the repeatability accuracy.

[0087] The positioning groove 112, with its specific shape and size, can restrict the translation of the support member 01 in the horizontal direction. After the support member 01 is embedded in the positioning groove 112, it can only move within a small range allowed by the positioning groove 112, thereby reducing the displacement of the support member 01 during the assembly process.

[0088] See also Figure 2 and Figure 4 In one possible implementation, the support body 11 includes a plurality of bolt holes. After the support member 01 is assembled onto the support body 11 and the relative position of the support member 01 and the support body 11 is adjusted, the support body 11 and the support member 01 can be fixedly connected by bolts.

[0089] For example, after the support member 01 is assembled onto the bearing body 11, the support member 01 can be connected to the bearing body 11 by at least one of the following detachable connections: bolt connection, snap-fit ​​connection, plug connection, locking connection, magnetic connection, etc.

[0090] See also Figure 2 and Figure 3 In one possible implementation, the support 1 includes a first limiting member 15 and a second limiting member 16. The first limiting member 15 and the second limiting member 16 are arranged along the rotation direction of the support body 11. One of the first limiting member 15 and the second limiting member 16 is connected to the fixed base 13, and the other is connected to the support body 11. The first limiting member 15 and the second limiting member 16 cooperate to stop and limit the maximum rotation angle of the support body 11.

[0091] When the bearing body 11 and the fixed base 13 rotate relative to each other until the first limiting member 15 and the second limiting member 16 cooperate to stop, the bearing body 11 is restricted from continuing to rotate, which can reduce the situation of excessive rotation of the bearing body 11.

[0092] For example, the first limiting member 15 and the second limiting member can be two protruding structures, or the first limiting member 15 and the second limiting member can be a combination of a protruding structure and a recessed structure.

[0093] See also Figure 1 and Figure 2 In one possible implementation, there are multiple guide vanes 02, which are distributed in a circular array along the circumference of the support member 01 and are pre-assembled on the support member 01.

[0094] The support body 11 is used to support the support member 01, and the rotation axis of the support body 11 is parallel or collinear with the array axis of the multiple guide vanes 02.

[0095] The measuring device is used to detect the first pre-assembly accuracy parameters of multiple guide vanes 02 and support 01. The multiple guide vanes 02 can be adjusted or replaced relative to the support 01 according to the first pre-assembly accuracy parameters.

[0096] In this way, the assembly personnel can measure the first pre-assembly accuracy parameters of multiple guide vanes 02 and support components 01 without moving, reducing the time and effort wasted due to the need for frequent movement to obtain measurement data at different positions, making the measurement work more efficient and convenient, and enabling the rapid completion of the measurement of multiple guide vanes 02, thus speeding up the entire assembly process.

[0097] Based on the measured first pre-assembly accuracy parameters, the guide vane 02 can be directly adjusted or replaced without the need for a complex disassembly and reassembly process. This allows for rapid correction of assembly deviations and improves the overall assembly efficiency.

[0098] See also Figure 1 , Figure 2 and Figure 5 In one possible implementation, the first pre-assembly accuracy parameters of the plurality of guide vanes 02 and the support member 01 include the radial runout of the outer edge of the plurality of guide vanes 02, the radius T of the outer edge of the plurality of guide vanes 02, the radial runout of the inner edge of the plurality of guide vanes 02, and the radius X of the inner edge of the plurality of guide vanes 02.

[0099] By measuring the first pre-assembly accuracy parameters, assembly personnel can determine whether the blades are installed correctly and whether there are any deviations, and make corresponding adjustments to ensure that each guide blade 02 can be installed in the correct position, thereby improving the accuracy and quality of assembly.

[0100] Take the installation of the high-pressure turbine first-stage guide assembly (HPTN1) as an example.

[0101] According to the definition of radial runout tolerance zone, when the radial runout of the outer edge of guide vane 02 is greater than 0.05mm, the position of guide vane 02 needs to be adjusted or guide vane 02 needs to be replaced.

[0102] When the radius T of the outer edge of multiple guide vanes 02 exceeds 429.77 mm, it is necessary to adjust the position of the guide vanes 02 or replace the guide vanes 02.

[0103] According to the definition of radial runout tolerance zone, when the radial runout of the inner edge of guide vane 02 is greater than 0.05mm, the position of guide vane 02 needs to be adjusted or guide vane 02 needs to be replaced.

[0104] When the radius X of the inner edge of multiple guide vanes 02 is less than 369.60 mm, the position of the guide vanes 02 needs to be adjusted or the guide vanes 02 need to be replaced.

[0105] For example, the measuring device includes a needle-shaped vernier caliper for measuring the radius of the outer edge of a plurality of guide vanes 02 and the radius X of the inner edge of a plurality of guide vanes 02.

[0106] See also Figure 1 , Figure 2 and Figure 5 In one possible implementation, the measuring device is also used to detect the positioning accuracy parameters of the support member 01 supported on the support body 11 relative to the support body 11.

[0107] In one possible implementation, the positioning accuracy parameters include the circular runout of the end face of the support member 01 facing away from the carrier body 11 and the inner edge radius A of the end of the support member 01 facing away from the carrier body 11.

[0108] When the support member 01 supports the support body 11, it is necessary to determine the relative positioning accuracy parameters of the support member 01 and the support body 11, because the first position accuracy parameter is affected by the positioning accuracy parameter.

[0109] According to the definition of radial runout tolerance zone, when the radial runout of the end face of support 01 opposite to the bearing body 11 is greater than 0.05mm, support 01 needs to be replaced.

[0110] See also Figure 1 , Figure 2 and Figure 5 In one possible implementation, the measuring device is also used to detect a first positional accuracy parameter of the plurality of guide vanes 02 relative to the carrier body 11. The first carrier body 11 includes a distance U between the outer edge of the plurality of guide vanes 02 and the carrier body 11, and a distance N between the inner edge of the plurality of guide vanes 02 and the carrier body 11.

[0111] When the distance U between the outer edge of a single guide vane 02 and the bearing body 11 is greater than or equal to 343.92 mm, the position of the guide vane 02 needs to be adjusted or the guide vane 02 needs to be replaced.

[0112] When the distance U between the outer edge of a single guide vane 02 and the bearing body 11 is less than or equal to 342.75 mm, the position of the guide vane 02 needs to be adjusted or the guide vane 02 needs to be replaced.

[0113] It is necessary to measure the distance U between the outer edge of at least 32 guide vanes 02 and the carrier body 11. The average value of the distance U between the outer edge of the 32 guide vanes 02 and the carrier body 11 needs to be less than 343.92 mm and greater than 342.75 mm. For example, the average value can be 343.05 mm.

[0114] When the distance N between the inner edge of the guide vane 02 and the bearing body 11 is greater than or equal to 343.26 mm, the position of the guide vane 02 needs to be adjusted or the guide vane 02 needs to be replaced.

[0115] By detecting the positioning accuracy parameter and the first position accuracy parameter, it can be determined whether the relative positions of multiple guide vanes 02 and support 01 are qualified.

[0116] See also Figure 5 and Figure 6 and combined Figure 1 and Figure 2 As shown, in one possible implementation, the turbine guide assembly 100 further includes a plurality of sealing elements 03 located inside the plurality of guide vanes 02. The plurality of sealing elements 03 are distributed in a circular array along the circumference of the support 01 and are pre-assembled on the support 01.

[0117] The measuring device is also used to detect the second pre-assembly accuracy parameters of multiple sealing components 03 and support components 01.

[0118] See also Figure 5 and Figure 6 and combined Figure 1 and Figure 2 As shown, in one possible implementation, the second pre-assembly accuracy parameters of the plurality of sealing elements 03 and the support element 01 include the outer edge radius V of the plurality of sealing elements 03 and the inner edge diameter B of the plurality of sealing elements 03.

[0119] The outer edge of the sealing element 03 refers to the outermost point of the outermost lip of the sealing element 03, and the inner edge of the sealing element 03 refers to the inner lip of the sealing element 03.

[0120] When the outer edge radius V of the sealing component 03 is greater than or equal to 364.31mm, the position of the sealing component 03 needs to be adjusted or the sealing component 03 needs to be replaced.

[0121] The inner edge diameter B of the sealing component 03 must be greater than or equal to 645.97 mm and less than or equal to 649.33 mm. If the inner edge diameter B of the sealing component 03 is outside this range, the position of the sealing component 03 needs to be adjusted or the sealing component 03 needs to be replaced.

[0122] In one possible implementation, the measuring device is also used to detect a second positional accuracy parameter of the plurality of sealing components 03 relative to the support body 11. The plurality of sealing components 03 can be adjusted or replaced relative to the support 01 based on the second pre-assembly accuracy parameter and the second positional accuracy parameter.

[0123] The second positional accuracy parameter includes the distance K between the inner edge of multiple sealing components 03 and the bearing body 11.

[0124] When the distance K between the inner edge of the sealing component 03 and the bearing seat body 11 is greater than or equal to 364.31 mm, the position of the sealing component 03 needs to be adjusted or the sealing component 03 needs to be replaced.

[0125] By detecting the second pre-assembly accuracy parameters and the second position accuracy parameters of multiple sealing components 03 and support components 01, it can be determined whether the relative positions of the multiple sealing components 03 and support components 01 are qualified. If they are not qualified, the position of the sealing component 03 is adjusted, or the sealing component 03 is replaced.

[0126] In one possible implementation, the measuring component includes a device for measuring circular runout.

[0127] For example, devices for measuring circular runout include, but are not limited to, dial indicators, micrometers, coordinate measuring machines, roundness testers, laser interferometers, and image measuring instruments.

[0128] like Figure 7 As shown, a method for assembling a turbine guide assembly 100 using an assembly apparatus 200 provided in any embodiment of the first aspect is provided.

[0129] The method for assembling the turbine guide assembly 100 using the assembly device 200 includes:

[0130] 001: The pre-assembled components of the guide vanes and support members are placed on the support seat.

[0131] The support 1 can provide stable support for the pre-assembled components, making it easier for assembly personnel to handle, rotate and perform other operations on the components. Compared with scattered parts, the overall operation is more efficient and convenient, which helps to speed up the assembly process.

[0132] 002: The first pre-assembly accuracy parameters of the guide vane and support component are detected using a measuring device.

[0133] The first pre-assembly accuracy parameters of multiple guide vanes 02 and support components 01 can be detected to determine whether the relative positions of the multiple guide vanes 02 and support components 01 are qualified.

[0134] 003: Adjust the relative position of the guide vane and the support component according to the first pre-assembly accuracy parameters, or replace the guide vane.

[0135] Based on the first pre-assembly accuracy parameters, guide vanes 02 that do not meet the accuracy requirements can be directly adjusted or replaced locally, saving overall assembly time.

[0136] 004: The relative position of the fixed guide vane and the support.

[0137] Fix the relative position of the guide vane 02 and the support 01. Complete the assembly.

[0138] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An assembly apparatus for a turbine guide vane assembly, characterized in that, The turbine guide assembly includes a support and guide vanes; The assembly device includes: A support base is provided for supporting the support member, and the guide vane is pre-assembled on the support member. A measuring device is provided for detecting a first pre-assembly accuracy parameter between the guide vane and the support member. The guide vane can be adjusted or replaced relative to the support member according to the first pre-assembly accuracy parameter.

2. The assembly device according to claim 1, characterized in that, The support includes a support body and a connecting arm. The support body is used to support the support member. The measuring device is connected to the connecting arm. The support body and the connecting arm can rotate relative to each other.

3. The assembly device according to claim 2, characterized in that, The support base also includes a fixed base, the support base body is rotatably supported on the fixed base, and the connecting arm is fixed to the fixed base.

4. The assembly device according to claim 3, characterized in that, The support also includes a rolling assembly located between the support body and the fixed base.

5. The assembly device according to claim 4, characterized in that, The scrolling component includes: Ball bearings; The mounting component is connected to the support body and includes a receiving cavity with an opening facing the fixed base. The ball bearing is received in the receiving cavity, and at least a portion of the ball bearing is in rolling connection with the fixed base through the opening.

6. The assembly device according to claim 4, characterized in that, The bearing body has a receiving groove on the side facing the fixed base, and the rolling assembly is located in the receiving groove.

7. The assembly device according to claim 3, characterized in that, The support also includes: A positioning groove is provided on the surface of the bearing body opposite to the fixed base; the positioning groove is used to position the support member when the bearing supports the support member.

8. The assembly device according to claim 3, characterized in that, The support includes: A first limiting member and a second limiting member are provided along the rotation direction of the bearing body. One of the first limiting member and the second limiting member is connected to the fixed base, and the other is connected to the bearing body. The first limiting member and the second limiting member cooperate to stop and limit the maximum rotation angle of the bearing body.

9. The assembly device according to claim 3, characterized in that, The number of guide vanes is multiple, and the multiple guide vanes are distributed in a circular array along the circumference of the support member and are pre-assembled on the support member; The bearing seat body is used to support the support member, and the rotation axis of the bearing seat body is parallel or collinear with the array axis of the plurality of guide vanes; The measuring device is used to detect a first pre-assembly accuracy parameter of the plurality of guide vanes and the support member. The plurality of guide vanes can be adjusted or replaced relative to the support member according to the first pre-assembly accuracy parameter.

10. The assembly apparatus according to claim 9, characterized in that, The first pre-assembly accuracy parameters include the radial runout of the outer edges of the multiple guide vanes, the radius of the outer edges of the multiple guide vanes, the radial runout of the inner edges of the multiple guide vanes, and the radius of the inner edges of the multiple guide vanes.

11. The assembly apparatus according to claim 9, characterized in that, The measuring device is also used to detect the positioning accuracy parameters of the support member relative to the bearing seat body; the positioning accuracy parameters include the circular runout of the end face of the support member facing away from the bearing seat body and the inner edge radius of the end of the support member facing away from the bearing seat body.

12. The assembly apparatus according to claim 9, characterized in that, The measuring device is also used to detect a first position accuracy parameter of the plurality of guide vanes relative to the carrier body; The first position accuracy parameter includes the distance from the outer edge of the plurality of guide vanes to the carrier body and the distance from the inner edge of the plurality of guide vanes to the carrier body.

13. The assembly apparatus according to claim 9, characterized in that, The turbine guide assembly also includes a plurality of sealing elements; along the radial direction of the support, the sealing elements are spaced apart from the guide vanes, and the plurality of sealing elements are distributed in a circular array along the circumference of the support and are pre-assembled on the support; The measuring device is also used to detect a second pre-assembly accuracy parameter of the plurality of sealing components and the support component. The plurality of sealing components can be adjusted or replaced relative to the support component according to the second pre-assembly accuracy parameter. The second pre-assembly accuracy parameter includes the outer edge radius of the plurality of sealing components and the inner edge diameter of the plurality of sealing components.

14. The assembly apparatus according to claim 13, characterized in that, The measuring device is also used to detect a second positional accuracy parameter of the plurality of sealing components relative to the support body. The plurality of sealing components can be adjusted or replaced relative to the support according to the second positional accuracy parameter. The second positional accuracy parameter includes the distance between the inner edge of the plurality of sealing components and the support body.

15. A method for assembling a turbine guide assembly, characterized in that, The assembly method using the turbine guide assembly according to any one of claims 1-14 includes: The pre-assembled components, including the guide vanes and support members, are mounted on the support base. The first pre-assembly accuracy parameters of the guide vane and the support member are detected using a measuring device. Adjust the relative position of the guide vane and the support member according to the first pre-assembly accuracy parameter, or replace the guide vane; The relative positions of the guide vane and the support member are fixed.

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