Method for mounting and replacing driving parts of large face gear transmission pair and connecting tool

Abstract

The application discloses a large face gear transmission pair driving component installation method, which comprises the following steps: firstly, based on a simulation model, the meshing of the face gear and the driving gear of the driving component is simulated; when the simulation meshing trace position meets the set meshing requirement, the misalignment amount of the driving component relative to the center of the face gear in the simulation model is obtained; then, the driving component is detachably installed on an adjusting plate with an installation hole, so that the driving gear passes through the installation hole; the misalignment amount is taken as the installation position reference of the driving component relative to the center of the face gear, the adjusting plate carrying the driving component is installed on the installation base surface of the driving component, so that the driving gear is meshed with the face gear; and the installation is completed. The method predefines the installation reference of the driving component, can realize the quick disassembly and assembly of the shaft angle error when the driving component is replaced subsequently, and reduces the operation difficulty and the degree of dependence on personnel. The application further provides a large face gear transmission pair driving component replacement method and a connecting tool.

Description

Technical Field

[0001] This invention specifically relates to a method for installing and replacing a large face gear transmission pair drive component, as well as a connecting fixture. Background Technology

[0002] In special operating environments such as radioactive fields, mechanical devices are generally located in isolation rooms. After failure, malfunction, or damage, operators are generally not allowed to enter the isolation room. In special circumstances, operators may enter the isolation room, but the allowed stay time is extremely short and insufficient to carry out troubleshooting and maintenance work on the mechanical devices. Mechanical devices in such environments must be equipped with remote and rapid maintenance operation measures.

[0003] Because face gear drives have low installation requirements—for example, they can function normally even with macroscopic dimensional errors—they are well-suited for such environments due to their low installation requirements. However, the high temperatures and corrosive gases in the environment, along with the meshing load on the gear teeth, can easily cause wear, corrosion, and even tooth breakage. Therefore, there is still a need for remote, fast, and unmanned assembly and disassembly technologies for such equipment.

[0004] Large face gears are very large, with an outer diameter exceeding 2000mm, but their rotational speed is relatively slow. Due to the requirements of the operating conditions, a large transmission ratio drive device is needed. The cylindrical gears of this drive device have a high number of cycles, so the drive components are more prone to failure than the large face gears themselves. Therefore, there is an urgent need to solve the problem of quick replacement in this special environment.

[0005] However, due to the large size of large face gears, their allowable shaft angle installation error is very small, and the larger the size, the smaller the allowable shaft angle error. Therefore, to ensure a considerable lifespan for the drive components, it is necessary to ensure good contact conditions for the large face gear transmission during quick installation, thus necessitating control of its shaft angle installation error. However, achieving this high degree of precision operation combined with the requirements of remote, unmanned, and rapid operation in the aforementioned special environment is extremely difficult. Summary of the Invention

[0006] The technical problem to be solved by this invention is to address the aforementioned shortcomings in the prior art by providing a method for installing a large face gear transmission drive component. This method pre-sets an installation reference for the drive component, enabling quick disassembly and assembly to accommodate shaft angle errors during subsequent replacement of the drive component, thus reducing operational difficulty and reliance on personnel. This invention also provides a method for replacing a large face gear transmission drive component and a connecting fixture.

[0007] This invention provides a method for installing a large face gear transmission pair drive component, comprising the following steps:

[0008] S1: Based on the simulation model, simulate the meshing of the face gear and the drive gear of the drive component. When the simulated meshing imprint position meets the set meshing requirements, obtain the misalignment of the drive component relative to the center of the face gear in the simulation model.

[0009] S2: The drive component is detachably mounted on an adjustment plate with mounting holes, so that the drive gear passes through the mounting holes;

[0010] S3: Using the misalignment as the mounting position reference for the drive component relative to the center of the face gear, the adjustment plate carrying the drive component is mounted on the mounting base surface of the drive component, so that the drive gear meshes with the face gear.

[0011] Installation complete.

[0012] Further, step S1 specifically includes:

[0013] S11: Construct the fitting surface of the drive gear tooth surface and the fitting surface of the face gear tooth surface to obtain the simulation model;

[0014] S12: In the simulation model, under the preset axial error and offset error of the driving component relative to the center of the face gear, the simulated meshing imprint position of the driving gear tooth surface fitting surface and the face gear tooth surface fitting surface is calculated.

[0015] S13: If the simulated meshing imprint position is not located at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface, modify the preset values ​​of the axial error and offset error of the drive component relative to the face gear center, and repeat step S12 until the simulated meshing imprint position is located at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface, and obtain the target simulated meshing imprint position.

[0016] S14: The axial error and offset error corresponding to the position of the target simulated meshing imprint are used as the misalignment amount.

[0017] Further, step S11 specifically includes:

[0018] On a gear measuring center or coordinate measuring machine, the tooth surface coordinates of the drive gear and the tooth surface coordinates of the face gear are measured. The tooth surface coordinates of each gear are obtained by averaging several tooth surfaces that are evenly distributed around the axial direction.

[0019] Based on NURBS surface fitting, the tooth surface coordinates of the drive gear and the tooth surface coordinates of the face gear are both fitted into NURBS surfaces, which serve as the tooth surface fitting surfaces of the drive gear and the face gear to obtain the simulation model.

[0020] Further, step S12 specifically includes:

[0021] In the simulation model, position transformation matrices are constructed for the tooth surface fitting surfaces of the driving gear and the tooth surface fitting surfaces of the face gear when they rotate in a fixed coordinate system. The position transformation matrix of the driving gear includes the driving gear rotation angle parameter, and the position transformation matrix of the face gear includes the axial error, offset error, and face gear rotation angle parameter.

[0022] Input the rotation angle parameters of the face gear, and solve for the rotation angle parameters of the drive gear based on the position transformation matrix of each gear and the set contact conditions, thereby obtaining the meshing contact point;

[0023] The simulated meshing imprint positions of the drive gear tooth surface fitting surface and the face gear tooth surface fitting surface are calculated based on the parameters at the meshing contact point.

[0024] Furthermore, prior to step S1, the method further includes:

[0025] S0: Preparation steps;

[0026] Step S0 specifically includes:

[0027] Mounting surface gear;

[0028] Obtain the angle α1 between the face gear reference plane and the vertical line, and the angle α2 between the mounting base plane of the drive component and the horizontal plane;

[0029] The adjustment plate with mounting holes is prepared based on the included angles α1 and α2, and the included angle α on both sides of the adjustment plate is the algebraic sum of included angles α1 and α2.

[0030] Furthermore, after step S3, the method further includes:

[0031] S4: Fine-tune the mounting position of the adjustment plate carrying the drive component so that the actual meshing imprint of the drive gear and the face gear is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear.

[0032] Step S4 specifically includes:

[0033] S41: The drive component drives the drive gear to mesh and rotate with the face gear to obtain the actual meshing imprint;

[0034] S42: When the actual meshing imprint position is not at the midpoint of the tooth width and the midpoint of the tooth height of the face gear, the installation position of the adjustment plate on the mounting base is finely adjusted according to the actual meshing imprint position.

[0035] S43: Repeat steps S41 and S42 until the actual meshing imprint is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear.

[0036] Furthermore, the adjustment plate is mounted on the mounting base of the drive component using fasteners;

[0037] Step S42 specifically includes:

[0038] S421: Loosen the fasteners between the adjustment plate and the mounting base;

[0039] S422: Based on the relative position of the actual meshing imprint position with the midpoint of the tooth width and the midpoint of the tooth height of the face gear, a propulsion tool is used to push the drive component in a specific direction to move the adjustment plate a first set distance on the mounting base.

[0040] S423: Tighten the fasteners between the adjustment plate and the mounting base.

[0041] Further, step S422 specifically includes:

[0042] When the center of the actual meshing imprint is close to the tooth tip of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis towards the face gear by a first set distance using a pushing tool.

[0043] When the center of the actual meshing imprint is close to the tooth root of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis away from the face gear by a first set distance using a pushing tool.

[0044] When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed along the tangential direction of the face gear and the rotation direction of the face gear by a pushing tool to push the driving component and the adjusting plate a first set distance.

[0045] When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed along the tangential direction of the face gear and against the rotational direction of the face gear by a first set distance using a propulsion tool.

[0046] This invention also provides a method for replacing a drive component of a large face gear transmission pair. The drive component to be replaced is installed using the aforementioned method for installing a drive component of a large face gear transmission pair. The replacement method includes a disassembly step of the old drive component, the disassembly step including:

[0047] Unload the mounting components between the old drive unit and the adjustment plate, and lock the old drive unit shaft and the face gear shaft;

[0048] After the old drive component is lifted off the surface of the adjustment plate, it is moved a second predetermined distance away from the face gear along the face gear axis.

[0049] After lifting the old drive component to a set height, move it a second set distance along the face gear axis toward the face gear side;

[0050] The old drive unit was lifted and moved to the replacement platform to complete the disassembly.

[0051] Furthermore, the replacement method also includes an installation step of a new drive component, the installation step comprising:

[0052] After rotating the new drive component shaft until its phase matches that of the old drive component, lock the new drive component shaft.

[0053] Place the new drive unit below the adjustment plate;

[0054] Install the mounting components between the new drive unit and the adjustment plate, and unlock the new drive unit shaft and face gear shaft to complete the installation.

[0055] The present invention also provides a connecting fixture for a large face gear transmission drive component, used in the above-mentioned method for installing the large face gear transmission drive component. The connecting fixture includes an adjusting plate with mounting holes that allow the drive gear to pass through. The two surfaces of the adjusting plate have an included angle α, so that the adjusting plate is a wedge-shaped plate with a linearly varying thickness. The included angle α is the algebraic sum of included angles α1 and α2, where included angle α1 is the angle between the face gear reference plane and the vertical line, and included angle α2 is the angle between the mounting base plane of the drive component and the horizontal plane. One surface of the adjusting plate is mounted on the mounting base plane of the drive component, and the other surface serves as the mounting surface of the drive component, so that the mounting surface of the drive component is perpendicular to the face gear reference plane.

[0056] Furthermore, the connecting fixture also includes an installation component. The adjustment plate has grooves distributed along the axial direction of the face gear on the mounting surface. The drive gear is located at the center of the base plate of the drive component. The base plate has a protrusion corresponding to the groove. The drive gear of the drive component passes through the mounting hole and is embedded in the groove through the protrusion, so that the base plate can be slidably connected to the adjustment plate along the groove and fixed by the installation component.

[0057] Furthermore, the mounting component includes a fixed stop, a clamping block, and a force-applying mechanism. Both the fixed stop and the clamping block are strip-shaped and are arranged on the mounting surface of the adjusting plate along a direction perpendicular to the groove, respectively located on both sides of the mounting hole. The fixed stop is fixedly connected to the adjusting plate, and the distance between the surface facing the mounting hole and the center of the mounting hole is half the distance of the base plate. The clamping block is movably connected to the adjusting plate, and the surface away from the mounting hole is connected to the force-applying mechanism, thereby pressing the base plate against the fixed stop under the drive of the force-applying mechanism.

[0058] Furthermore, the adjustment plate is provided with fastening holes, and can be detachably mounted on the mounting base of the drive component by fasteners inserted into the fastening holes.

[0059] This invention presents a method for installing the drive component of a large face gear transmission pair, addressing the current difficulties in quickly assembling and disassembling face gears by proposing a pre-set installation benchmark. First, the optimal installation misalignment of the drive component is precisely obtained by pre-simulating the meshing state, providing a core parameter benchmark for remote, unmanned installation. Even for large face gears with extremely small allowable shaft angle errors, it ensures that the meshing imprint is in a relatively ideal area, guaranteeing good contact. This effectively avoids problems such as accelerated tooth wear, corrosion, or tooth breakage caused by installation deviations, significantly extending the service life of the transmission system.

[0060] More importantly, by utilizing the adjustment plate as a reference for misalignment, it not only achieves modular pre-integration with the drive components, significantly simplifying on-site assembly complexity, but also provides a pre-set reference for subsequent replacement of drive components, greatly simplifying the replacement process. Simply fix the replacement drive component according to the reference to quickly achieve precise meshing between the drive gear and the face gear. This meets the practical need for quick replacement while avoiding the difficulties of implementing high-precision operations in remote, unmanned scenarios. It significantly reduces the operational risks and time consumption of manual fine-tuning in extreme environments, and can be fully operated remotely through the equipment. This is particularly suitable for scenarios where drive components need frequent replacement due to high cycle counts and greater susceptibility to failure. Attached Figure Description

[0061] Figure 1 This is a schematic diagram of the connection fixture for the drive component of the large face gear transmission pair in Embodiment 3 of the present invention;

[0062] Figure 2 yes Figure 1 Schematic diagram of the AA-direction section;

[0063] Figure 3 This is a schematic diagram of the structure of the connecting fixture for the drive component of the large face gear transmission pair in Embodiment 3 of the present invention, which connects the adjusting plate and the drive component through a C-clamp;

[0064] Figure 4 This is a schematic diagram of the connecting tooling adjustment plate of the large face gear transmission pair drive component in Embodiment 3 of the present invention;

[0065] Figure 5 This is a schematic diagram showing that the simulated meshing imprint position is not at the midpoint of the tooth width and the midpoint of the tooth height in the installation method of the large face gear transmission pair drive component in Embodiment 1 of the present invention;

[0066] Figure 6 This is a schematic diagram showing the simulated meshing imprint position at the midpoint of the tooth width and the midpoint of the tooth height in the installation method of the large face gear transmission pair drive component in Embodiment 1 of the present invention;

[0067] Figure 7This is a schematic diagram showing that the actual meshing imprint position is not at the midpoint of the tooth width and the midpoint of the tooth height in the installation method of the large face gear transmission pair drive component in Embodiment 1 of the present invention;

[0068] Figure 8 This is a schematic diagram showing the actual meshing imprint position at the midpoint of the tooth width and the midpoint of the tooth height in the installation method of the large face gear transmission pair drive component in Embodiment 1 of the present invention.

[0069] In the diagram: 1. Adjustment plate; 11. Mounting hole; 12. Groove; 13. Fastening hole; 14. Fastener; 15. C-clamp; 16. Pressure block; 2. Drive component; 21. Drive gear; 22. Base plate; 221. Raised bar; 23. Output shaft; 3. Face gear; 31. Fixed shaft; 4. Mounting component; 41. Fixed stop block; 42. Clamping pressure block; 43. Force application mechanism; 5. Frame. Detailed Implementation

[0070] The technical solutions of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative effort are within the scope of the invention.

[0071] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of the description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0072] In the description of this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0073] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," "fixing," etc., 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0074] Example 1

[0075] The installation method of the large face gear transmission pair drive component in this embodiment includes the following steps:

[0076] S1: Based on the simulation model, simulate the meshing of the face gear and the drive gear of the drive component. When the simulated meshing imprint position meets the set meshing requirements, obtain the misalignment of the drive component relative to the center of the face gear in the simulation model.

[0077] S2: The drive component is detachably mounted on an adjustment plate with mounting holes, so that the drive gear passes through the mounting holes;

[0078] S3: Using the misalignment as the mounting position reference for the drive component relative to the center of the face gear, the adjustment plate carrying the drive component is mounted on the mounting base surface of the drive component, so that the drive gear meshes with the face gear.

[0079] Installation complete.

[0080] The installation method for the large face gear transmission drive component in this embodiment can be used in the field of gear transmission installation. Specifically, it can be described as a quick assembly and disassembly solution for ultra-large face gear transmission drive components in special operating environments. In view of the current difficulties in quick assembly and disassembly of face gears, an installation method with a pre-set installation benchmark is proposed, which can be used in conjunction with the connecting tooling in Embodiment 3.

[0081] Firstly, by pre-simulating the meshing state, the optimal installation misalignment of the drive component 2 is accurately obtained, providing a core parameter benchmark for remote unmanned installation. Even for large face gears 3 with extremely small allowable shaft angle errors, it can still ensure that the meshing imprint is in a relatively ideal area, guaranteeing good contact. This effectively avoids problems such as accelerated tooth wear, corrosion, or tooth breakage caused by installation deviations, significantly extending the service life of the transmission system.

[0082] More importantly, by utilizing the adjustment plate 1 as a carrier for the misalignment reference, it not only achieves modular pre-integration with the drive component 2, significantly simplifying on-site assembly complexity, but the adjustment plate 1 itself also provides a preset reference for subsequent replacement of the drive component. That is, when replacing the drive component 2, the adjustment plate 1, with its pre-set misalignment, remains on the original mounting surface, providing a mounting surface for the drive component 2. This greatly simplifies the replacement process; simply fixing the replacement drive component 2 according to the reference allows for rapid and precise meshing of the drive gear 21 and the face gear 3. This meets the practical need for quick replacement while avoiding the difficulties of implementing high-precision operations in remote, unmanned scenarios. It significantly reduces the operational risks and time consumption of manual fine-tuning in extreme environments, and enables remote operation via equipment. This is particularly suitable for scenarios where drive components require frequent replacement due to high cycle counts and increased susceptibility to failure.

[0083] This embodiment provides a specific example of an installation method for a drive component in a large face gear transmission with an outer diameter of 3930 mm, a weight of 4.95 t, and a tooth width of 138 mm, to accommodate shaft angle errors. The drive component 2 is a high-ratio reducer, and a standard involute cylindrical gear is mounted on its output shaft 23. This cylindrical gear serves as the drive gear 21 to drive the face gear 3 to rotate, as shown in the attached diagram. Figure 1 As shown.

[0084] In this embodiment, step S1 can be described as the tooth surface contact imprint simulation and drive component mounting position estimation step, which specifically includes:

[0085] S11: Construct the fitting surface of the drive gear tooth surface and the fitting surface of the face gear tooth surface to obtain the simulation model;

[0086] S12: In the simulation model, under the preset axial error and offset error of the driving component relative to the center of the face gear, the simulated meshing imprint position of the driving gear tooth surface fitting surface and the face gear tooth surface fitting surface is calculated.

[0087] S13: If the simulated meshing imprint position is not at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface, modify the preset values ​​of the axial error and offset error of the drive component relative to the face gear center, and repeat step S12 until the simulated meshing imprint position is at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface (set meshing requirements), and obtain the target simulated meshing imprint position.

[0088] S14: Use the axial error and offset error corresponding to the position of the target simulated meshing imprint as the misalignment amount.

[0089] In this embodiment, step S11 specifically includes:

[0090] On a gear measuring center or coordinate measuring machine, the tooth surface coordinates of the drive gear (or cylindrical gear) and the face gear are measured. Specifically, the coordinates of several tooth surfaces evenly distributed around the axial direction of each gear are measured and averaged to obtain the tooth surface coordinates of each gear. In this embodiment, the tooth surface coordinates of the cylindrical gear and the face gear are measured on a gear measuring center or coordinate measuring machine. Specifically, one tooth is measured every 90°, for a total of four teeth. The average coordinates of the four tooth surfaces of each gear are then calculated.

[0091] Based on NURBS surface fitting, specifically bicubic rational B-spline NURBS surface fitting, the tooth surface coordinates of both the drive gear and the face gear are fitted to NURBS surfaces to obtain a simulation model, which serves as the fitted surface for both the drive gear and face gear. In this embodiment, the position vector and normal vector of the cylindrical gear NURBS surface are respectively represented as follows: , , , These are the surface parameters of the NURBS surface of the cylindrical gear; the position vector and normal vector of the NURBS surface of the face gear are respectively expressed as... , , , These are the surface parameters of the NURBS surface of the gear face.

[0092] In this embodiment, step S12 specifically includes:

[0093] In the simulation model, position transformation matrices are constructed for the fitted surfaces of the driving gear tooth surface and the face gear tooth surface when rotated in a fixed coordinate system. The position transformation matrix for the driving gear includes the driving gear rotation angle parameter, and the position transformation matrix for the face gear includes the axial error, offset error, and face gear rotation angle parameter. In this embodiment, this step specifically involves:

[0094] Using two NURBS surfaces and taking axial error into account. and bias error (Preliminary design) =0; =0, the specific direction of the deviation is as follows: Figure 4 As shown in the figure, the tooth surfaces of the cylindrical gear and the face gear rotate in the fixed coordinate system, and their position transformation matrices to the fixed coordinate system are as follows: , , , These are the rotation angles of the cylindrical gear and the face gear, respectively.

[0095] The input face gear rotation angle parameters are used to solve for the drive gear rotation angle parameters based on the position transformation matrix of each gear and the set contact conditions, thereby obtaining the meshing contact point. In this embodiment, this step specifically involves rotating the face gear tooth surface, i.e., inputting... The tooth surface of the cylindrical gear is driven, i.e., the solution is... Thus, the contact point between the two wheels is finally obtained based on the contact conditions. The contact point calculated for the NURBS surfaces of the two wheels satisfies the following equation (assuming contact conditions): that is, viewed in a fixed coordinate system, the normal directions of the two tooth surfaces are the same. This is a crucial condition for ensuring effective force transmission.

[0096] ;

[0097] The simulated meshing imprint positions of the driving gear tooth surface fitting surface and the face gear tooth surface fitting surface are calculated based on the parameters at the meshing contact point. In this embodiment, this step specifically involves:

[0098] Let the two principal curvatures of the cylindrical gear tooth surface at the contact point be: , The two principal curvatures of the gear tooth surface at the contact point are: , Principal curvature , The corresponding main directions are respectively , And the angle between these two principal directions in the fixed coordinate system is Then, the larger of the two calculation results can be taken as the length of the contact ellipse:

[0099] ;

[0100] In the formula, , , , ;

[0101] by As discrete input parameters, the search is performed in two directions starting from the center of the gear tooth surface, with ± representing the search directions towards the tooth tip or tooth height. It is the number of teeth on a face gear. It refers to the number of steps searched in two directions, in this embodiment. , To obtain the contact imprints (i.e., simulated meshing imprint positions) of the two tooth surfaces, such as... Figure 5 As shown.

[0102] Therefore, steps S13 and S14, performed after step S12, are as follows:

[0103] Change according to the location of the contact mark , The value of is used to repeatedly calculate the tooth surface contact mark until the center of the contact mark coincides with or nearly coincides with the midpoint of the tooth width and tooth height of the face gear (a range that meets the requirements can be preset), such as Figure 6 As shown, the calculation of the tooth surface contact imprint ends, and the misalignment of the center of the gear opposite the output shaft of the drive component is obtained. , This determines the mounting position of the center of the opposing gear of the driving component on the horizontal plane. In this embodiment... =-0.63mm, =1.27mm (the positive and negative orientations of axial error and offset error can be set during the initial preset, which will not be elaborated here), which determines the installation position of the center of the opposing gear of the drive component on the horizontal plane, such as Figure 4 As shown in the attached diagram (it is drawn at a position far from the center of the mounting hole 11, but the actual location should be determined according to the specific situation).

[0104] In this embodiment, step S0 is included before step S1: a preparation step; step S0 specifically includes:

[0105] Install the face gear; the face gear 3 can be fixed to a fixed shaft 31 without adjustment through the center hole of the face gear 3 according to the construction drawing requirements, see Figure 1 Alternatively, multiple cantilever shafts can be evenly distributed circumferentially, with the inner ring surface of the face gear 3 suspended on the cantilever shafts without adjustment; the fixed shaft 31 or the cantilever shafts are fixed to the frame 5 without adjustment according to the machined positioning surfaces, shafts, and holes, see... Figure 1 The face gear 3 is axially fixed on the fixed shaft 31 or the cantilever shaft, and can rotate freely in the circumferential direction.

[0106] Obtain the angle α1 between the face gear reference plane and the vertical line, and the angle α2 between the mounting base plane of the drive component and the horizontal plane (i.e., the angle between the mounting base plane of the drive component on the crossbeam of the measuring frame 5 and the horizontal plane, this angle is α2, such as...). Figure 1 (as shown)

[0107] An adjustment plate with mounting holes and a linearly varying thickness is prepared based on included angles α1 and α2. The included angle α between the two surfaces of the adjustment plate is the algebraic sum of included angles α1 and α2. Referring to the specific structure of the connecting tooling in Example 3, this preparation process is as follows:

[0108] The material of the adjustment plate 1 is cut, and the material size is increased by 20~30mm relative to the length and width of the base plate 22 of the drive component 2. The thickness of the adjustment plate is about 55mm.

[0109] The upper and lower planes of the adjustment plate 1 are rough and fine milled to ensure that the dimensions, geometric tolerances and surface roughness of the upper plane meet the national standard grade 7 accuracy; the lower plane is sloped relative to the upper plane, and the slope inclination is the algebraic sum of α1 and α2;

[0110] Two parallel trapezoidal grooves 12 (or V-grooves 12) are rough-milled and finish-milled on the adjusting plate 1, such as... Figure 2 As shown, the wide opening of the trapezoidal groove 12 is located on the upper plane, and the groove depth is about 40mm;

[0111] A cylindrical hole is machined at the center of the adjusting plate 1 as a mounting hole 11, the diameter of which is approximately 30mm larger than the outer diameter of the drive gear 21 on the drive component 2; a through hole with a diameter of approximately 30mm is drilled at each of the four corners of the adjusting plate 1 as a fastening hole 13. Figure 4 As shown;

[0112] A row of 3-4 M12 bolt holes are made at one end (right end) of the adjustment plate 1 (for connecting and fixing the stop block 41 with bolts); a trapezoidal stop block 41 is fastened on the adjustment plate 1 through the M12 bolt holes and bolts. The opening of the trapezoidal stop block (i.e., the waist edge between the upper and lower bottom edges) faces the base plate 22 of the drive component 2. The midpoint of the inclined side of the trapezoidal opening contacts the base plate 22. The length from the contact point to the center of the middle mounting hole 11 is half the length of the base plate 22 of the drive component 2.

[0113] When the adjustment plate 1 prepared in this step is used to connect to the mounting base, it can ensure the perpendicularity of the drive component to the face gear base. That is, through this process of measuring and preparing the adjustment plate 1, the shaft angle error caused by the installation of the face gear 3 itself and the shaft angle error caused by the non-levelness of the frame 5 used to support the drive component 2 during construction are first eliminated; combined with the aforementioned step of installing according to the misalignment obtained from simulation, the measurement error in this step can be further eliminated, and the shaft angle error caused by installation and manufacturing errors and various clearances can be offset as much as possible.

[0114] In this embodiment, in conjunction with the connecting tooling structure of Embodiment 3, step S2 specifically includes:

[0115] The center mounting hole 11 of the adjusting plate 1 is concentric with the output shaft 23 of the drive component 2; the trapezoidal stop opening is tightly fitted with the end face of the base plate 22 of the drive component 2; the V-shaped slide rail, i.e., the protrusion 221, of the base plate 22 of the drive component 2 falls into the V-shaped guide groove 12 of the adjusting plate 1; and the drive component 2 and the adjusting plate 1 are connected and secured by the C-shaped clamp 15. Figure 3 As shown, this forms a single module for subsequent installation onto the mounting base.

[0116] The distances between the output shaft 23 of the drive component 2 and the center of the face gear in two vertical directions on the horizontal plane are respectively... , The two end faces of the base plate 22 of the drive component 2 are parallel to the reference surface of the face gear. The drive gear 21 is rotated slightly so that the teeth of the drive gear 21 are inserted into the tooth groove of the face gear 3. The entire module of the adjustment plate 1 and the drive component 2 is placed on the crossbeam (mounting base) of the frame 5, and the adjustment plate 1 is pressed and fastened to the crossbeam of the frame by bolt fasteners 14, pressure blocks 16, and fastening holes 13 at the four corners.

[0117] In this embodiment, after step S3, the method further includes:

[0118] S4: Fine-tune the mounting position of the adjustment plate carrying the drive component so that the actual meshing imprint of the drive gear and the face gear is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear.

[0119] Step S4 specifically includes:

[0120] S41: The drive component drives the drive gear to mesh and rotate with the face gear to obtain actual meshing marks. In this embodiment, a load is applied to the face gear 3 with a load torque of approximately 1200 Nm, and a drive torque of approximately 46 Nm is applied to the input shaft of the drive component 2. Semi-solid lubricating oil containing a colorant is evenly applied to 5-8 teeth of the face gear 3 every 90°, for a total of 20-32 teeth, to obtain actual meshing marks through the color distribution. Then, the input shaft of the drive component 2 is driven at approximately 500 r / min, causing the face gear 3 to rotate continuously for about 20 revolutions, and the marks on both sides of the teeth are inspected.

[0121] S42: When the actual meshing imprint is not located at the midpoint of the tooth width or the midpoint of the tooth height of the face gear, such as Figure 7 As shown, the installation position of the adjustment plate on the mounting base is finely adjusted according to the actual meshing imprint position;

[0122] S43: Repeat steps S41 and S42 until the actual meshing imprint is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear, such as... Figure 8 As shown. End the fine-tuning process of the installation position of adjustment plate 1 (and lock the fastening bolts on the four corner pressure blocks).

[0123] Even after installation, fine-tuning was performed. This fine-tuning process not only compensates for the measurement errors of α1 and α2, but also further offsets the shaft angle error caused by the deformation of the fixed shaft 31 of the support surface gear or the cantilever shaft, installation and manufacturing errors, and shaft angle errors caused by various clearances.

[0124] In this embodiment, after locking is completed, step S44 is further included. Referring to the connecting tooling structure in Embodiment 3, step S44 specifically includes:

[0125] Loosen and remove the C-clamp 15. Install a retractable force-applying mechanism 43, such as a ball screw or a spring-return constant pressure hydraulic rod, on the adjusting plate 1 (opposite to the fixed stop 41). At the end of the force-applying mechanism 43, install a trapezoidal clamping block 42 via a ball joint. The trapezoidal opening of the clamping block faces the opening of the fixed stop 41. The bottom surface of the clamping block 42 is located on the upper plane of the adjusting plate 1, and the top surface of the clamping block 42 abuts against the frame 5 (such as a portal frame welded on the frame beam). The clamping force applied by the force-applying mechanism 43 fixes the drive component 2 on the adjusting plate 1.

[0126] In this embodiment, the adjustment plate 1 has a square structure, with pressure blocks 16 at the four corners, and is installed on the mounting base of the drive component by fasteners 14 (bolts);

[0127] Step S42 specifically includes:

[0128] S421: Loosen the fasteners between the adjusting plate and the mounting base; specifically, loosen each fastening bolt on the four corner pressure blocks 16 of the adjusting plate 1 by 1 to 3 turns;

[0129] S422: Based on the relative position of the actual meshing imprint position with the midpoint of the tooth width and the midpoint of the tooth height of the face gear, a propulsion tool (such as a rubber hammer or a stepper propulsion tool) is used to push the drive component in a specific direction to move the adjustment plate a first set distance on the mounting base.

[0130] S423: Tighten the fasteners between the adjusting plate and the mounting base.

[0131] This method of fine-tuning by loosening the fasteners provides a certain amount of leeway for fine-tuning while ensuring that the adjustment plate and the mounting base do not completely detach, thus avoiding pushing and causing large displacement.

[0132] In this embodiment, step S422 specifically includes the following four types of pushing situations, which can be divided into fine-tuning of the axial and tangential positions of the adjusting plate 1:

[0133] Axial fine adjustment: When the center of the actual meshing imprint is close to the tooth tip of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis towards the face gear by a first set distance using a pushing tool.

[0134] When the center of the actual meshing imprint is close to the tooth root of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis away from the face gear by a first set distance using a pushing tool.

[0135] The first set distance range for fine-tuning the axial position can be selected as 0.5~1mm;

[0136] Tangential fine adjustment: When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed along the tangential direction of the face gear and along the rotation direction of the face gear by a pushing tool to push the driving component and the adjusting plate a first set distance.

[0137] When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed a first set distance along the tangential direction of the face gear and against the rotational direction of the face gear using a pushing tool. For example, assuming... Figure 1 If the gear in the middle is left-handed, the drive component moves inward or backward along a path perpendicular to the image when the imprint is close to the inner diameter, and moves outward or forward along a path perpendicular to the image when the imprint is close to the outer diameter.

[0138] The first set distance range for fine-tuning the tangential position can be selected as 1~1.5mm;

[0139] In summary, this embodiment proposes a quick installation method for the drive component of a large face gear, which can accommodate the shaft angle error. The method achieves quick disassembly and installation of the drive component 2 through tooth surface contact imprint simulation, drive component installation position estimation, and fine-tuning of the axial and tangential positions of the adjustment plate 1. It can be used for face gears 3 with an outer diameter of 2000mm or more.

[0140] The method primarily employs a combination of adjustment plate 1 and tooth surface contact analysis to compensate for macroscopic shaft angle installation errors caused by uncontrollable tooth surface errors and manufacturing and installation errors of large components. It also compensates for microscopic shaft angle errors caused by measurement and deformation through fine-tuning the position of adjustment plate 1. This effectively controls the contact imprint of the face gear 3 to the center of the tooth width. Furthermore, for quick installation, a three-way installation reference for the drive component 2 is pre-set, eliminating the need for adjustment during disassembly and replacement of the drive component. Other embodiments can be implemented by changing parameters and the shape and size of adjustment plate 1, while maintaining the same specific implementation method, to meet the requirements of quick disassembly and assembly and imprint control for face gear 3 transmissions of different specifications and sizes. Numerous other embodiments are also possible.

[0141] The method and steps of this embodiment are reasonable and reliable, and have the advantages of quick replacement of drive component 2 and easy operation. It not only eliminates the macroscopic shaft clamping angle error of large components, but also compensates for the microscopic shaft clamping angle error caused by factors such as measurement, manufacturing, deformation, and assembly clearance, ensuring that the meshing of the face gear transmission has good load-bearing characteristics. By setting the three-dimensional installation reference of the drive component, the repeated adjustments required for disassembly and assembly are eliminated, and the operation time is reduced.

[0142] Example 2

[0143] In this embodiment, the method for replacing the drive component of a large face gear transmission pair involves installing the drive component to be replaced using the installation method for the drive component of a large face gear transmission pair in Embodiment 1.

[0144] The replacement method includes the disassembly steps of the old drive component, which include:

[0145] Unload the mounting components between the old drive unit and the adjustment plate, and lock the old drive unit shaft and the face gear shaft;

[0146] After the old drive component is lifted off the surface of the adjustment plate, it is moved a second predetermined distance away from the face gear along the face gear axis.

[0147] After lifting the old drive component to a set height, move it a second set distance along the face gear axis toward the face gear side;

[0148] The old drive unit was lifted and moved to the replacement platform to complete the disassembly.

[0149] Based on the structural details of the connecting fixture in Embodiment 3 and the actual dimensions of the driving component 2 used, this disassembly step can be further specified as follows:

[0150] The clamping force of the force-applying mechanism 43 is unloaded, and the force-applying mechanism 43 retracts to move the clamping block 42 to the left limit position, locking the rotation of the output shaft 23 of the drive component 2 and the rotation of the locking surface gear 3;

[0151] Use a lifting device to lift the drive component 2, controlling the lifting height within the range of 1~2mm, so that the drive component 2 is removed from the surface of the adjusting plate 1.

[0152] If the lifting device is moved to the left (along the axis of the face gear 3 towards the side away from the face gear 3), the drive component 2 will be dragged by the lifting device to move to the left along the V-groove 12. The lifting device will move to the left by about 30mm (the second set distance) to avoid interference between the lifting device and the face gear 3.

[0153] Then lift the drive unit upwards to a height of about 50mm (set height); move the lifting unit to the right (along the face gear axis towards the face gear) to eliminate the previous leftward movement distance, i.e., move it to the right 30mm;

[0154] Once the lifting device has come to a complete stop and is no longer swaying, significantly lift the old drive unit to the replacement platform and disassemble it. Then replace it with the new drive unit.

[0155] In this embodiment, the replacement method further includes an installation step for the new drive component, which includes:

[0156] After rotating the new drive component shaft until its phase matches that of the old drive component, lock the new drive component shaft.

[0157] Place the new drive unit below the adjustment plate;

[0158] Install the mounting components between the new drive unit and the adjustment plate, and unlock the new drive unit shaft and face gear shaft to complete the installation.

[0159] Based on the structural details of the connecting fixture in Embodiment 3 and the actual dimensions of the driving component 2 used, this installation step can be further specified as follows:

[0160] Rotate the output shaft 23 (i.e., the rotating shaft) of the new drive component to make the positions of the cylindrical gears (i.e., the drive gears) on the new and old drive components completely aligned, and then lock the rotation of the output shaft 23 of the new drive component.

[0161] Use a lifting device to lift the new drive component and move it to the left by about 15mm to prevent the trapezoidal fixing block on the right end from obstructing the base plate.

[0162] The new drive component is quickly lowered by lifting and transposing. When the distance from the end face of the cylindrical gear to the adjusting plate is about 20mm, stop and observe the swing of the lifting device. When no swing is observed, slowly lower the new drive component.

[0163] When the lowering driving torque of the lifting device disappears, stop lowering and reverse the lifting. When the lifting driving torque rises to 1 / 3 of the lowering driving torque, determine whether the V-shaped slide rail of the new driving component falls into the V-shaped groove of the adjustment plate by the principle that the lifting and lowering strokes are equal. If the strokes are not equal, lift 10 mm, adjust the position of the lifting device, and then lower until the strokes are equal.

[0164] The force-applying mechanism 43 pushes the clamping block 42, which in turn pushes the new drive component to move to the right (along the face gear axis towards the face gear side) to abut against the fixed stop 41. When the output force of the force-applying mechanism 43 reaches its set value, the clamping block 42 and the fixed stop 41 have secured the new drive component to the adjustment plate 1, unlocking the rotation of the output shaft 23 of the new drive component and the face gear 3, and the installation is completed.

[0165] As can be seen, since the drive component is installed using the method in Example 1, the disassembly and installation steps of the replacement method in this example can be greatly simplified. There is no need to perform tedious debugging, measurement and other operations. Furthermore, even without such operations, good gear meshing transmission can be guaranteed, extending the service life of the equipment.

[0166] Example 3

[0167] The connecting fixture for the large face gear transmission drive component in this embodiment is used in the installation method of the large face gear transmission drive component in Embodiment 1. The connecting fixture includes an adjusting plate 1, on which a mounting hole 11 is provided to allow the drive gear 21 to pass through. An included angle α is formed between the two side surfaces of the adjusting plate 1, making the adjusting plate 1 a wedge-shaped plate with a linearly gradual change in thickness. The included angle α is the algebraic sum of included angles α1 and α2, where included angle α1 is the angle between the reference plane of the face gear 3 and the vertical line, and included angle α2 is the angle between the mounting base surface of the drive component 2 and the horizontal plane. One side surface of the adjusting plate 1 is mounted on the mounting base surface of the drive component 2, and the other side surface serves as the mounting surface of the drive component 2, so that the mounting surface of the drive component 2 is perpendicular to the reference plane of the face gear 3.

[0168] In this embodiment, the connecting fixture further includes a mounting component 4. The adjusting plate 1 has grooves 12 on its mounting surface that are axially distributed along the face gear 3. The drive gear 21 is located at the center of the base plate 22 of the driving component 2. The base plate 22 has protrusions 221 positioned corresponding to the grooves 12. The drive gear 21 of the driving component 2 passes through a mounting hole 11 and is embedded in the grooves 12 via the protrusions 221, allowing the base plate 22 to be slidably connected to the adjusting plate 1 along the grooves 12 and fixed by the mounting component 4. In this embodiment, both the grooves 12 and the protrusions 221 are trapezoidal in shape.

[0169] In this embodiment, the mounting component 4 includes a fixed stop 41, a clamping block 42, and a force-applying mechanism 43. Both the fixed stop 41 and the clamping block 42 are strip-shaped and arranged on the mounting surface of the adjusting plate 1 along a direction perpendicular to the groove 12, located on both sides of the mounting hole 11. The fixed stop 41 is fixedly connected to the adjusting plate 1, and the distance between the surface facing the mounting hole 11 and the center of the mounting hole 11 is half the distance between the base plate 22 and the fixed stop 42. The clamping block 42 is movably connected to the adjusting plate 1, and the surface away from the mounting hole 11 is connected to the force-applying mechanism 43, thereby pressing the base plate 22 against the fixed stop 41 under the drive of the force-applying mechanism 43. Both the fixed stop 41 and the clamping block 42 have trapezoidal cross-sections.

[0170] In this embodiment, the adjustment plate 1 has fastening holes 13 at its four corners, and can be detachably mounted on the mounting base of the drive component 2 by fasteners 14 passing through the fastening holes 13, so as to facilitate fine adjustment of the installation position. A pressure block 16 can also be provided at the fastening hole 13 on the upper surface of the adjustment plate 1. The fastener 14 passes through the pressure block 16 and connects to the mounting base through the fastening hole 13, so as to press the adjustment plate 1 onto the mounting base by the pressure block 16.

[0171] In this embodiment, the connecting fixture also includes a C-shaped clamp 15, which is used to connect the drive component 2 (base plate 22) and the adjustment plate 1 into an integral module during the installation phase. After being placed on the mounting base, the fine-tuning process in Embodiment 1 is performed and then the clamp is removed.

[0172] In general, the adjustment plate 1 in this embodiment can be manufactured according to the following steps and specifications:

[0173] The adjustment plate 1 is cut into pieces, and its dimensions (length and width) are increased by 20mm to 30mm relative to the length and width of the base plate 22 of the drive component 2. The thickness of the adjustment plate 1 is approximately 55mm.

[0174] Then, the upper and lower planes of the adjustment plate 1 are rough and fine milled so that the dimensions, form and position tolerances and surface roughness of the upper plane (i.e. the mounting surface of the drive component 2) meet the national standard grade 7 accuracy; the lower plane is left with a slope relative to the upper plane, and the slope inclination is the algebraic sum of α1 and α2;

[0175] Then, rough and finish mill two parallel grooves 12 on the adjustment plate 1. The two grooves 12 are located on both sides of the center of the adjustment plate 1 (mounting hole 11), and both have a trapezoidal cross-section structure. The wider opening of the trapezoidal groove 12 is located on the upper plane, and the groove depth is about 40mm.

[0176] Then, a cylindrical hole is machined at the center of the adjustment plate 1 as a mounting hole 11, the diameter of which is about 30mm larger than the outer diameter of the cylindrical drive gear 21 on the drive component 2; a through hole with a diameter of about 30mm is opened at each of the four corners of the adjustment plate 1 as a fastening hole 13, which is used to connect the mounting base or frame 5 through the fastener 14.

[0177] A row of 3-4 M12 bolt holes is made at one end (right end) of the adjusting plate 1 for connecting and fixing the stop block 41 with bolts. A trapezoidal fixing stop block 41 is fastened to the adjusting plate 1 through the M12 bolt holes and the M12 fastening bolts. The opening of the trapezoidal stop block (i.e., the waist edge between the upper and lower bottom edges) faces the base plate 22 of the drive component 2. The midpoint of the inclined side of the trapezoidal opening contacts the base plate 22. The length from the contact point to the center of the middle mounting hole 11 is half the length of the base plate 22 of the drive component 2. The trapezoidal fixing stop block 41, the upper bottom surface (mounting surface), and the V-groove 12 of the adjusting plate 1 respectively constitute the left-right (axial direction of the face gear 3), up-down, and front-back (radial direction of the face gear 3) references when the drive component 2 is installed. The drive component 2 is fixed to the adjusting plate 1 with a unique spatial position, eliminating the need for adjustment after the drive component 2 is disassembled and reinstalled.

[0178] The face gear 3 can be fixed to a fixed shaft 31 without adjustment through its center hole, according to the requirements of the construction drawings. Alternatively, it can be suspended from the inner ring surface of the face gear 3 onto multiple cantilever shafts evenly distributed in the circumference without adjustment. The fixed shaft 31 or the cantilever shafts are fastened to the frame 5 without adjustment according to the machined positioning surfaces, shafts, and holes. The face gear 3 is axially fixed on the fixed shaft 31 or the cantilever shafts and can rotate freely in the circumference.

[0179] Before adjusting plate 1 is cut, the angle α1 between the reference plane of face gear 3 and the vertical line can be measured first; then the angle α2 between the mounting base of drive component 2 on the crossbeam of frame 5 and the horizontal plane can be measured. Specifically, drive component 2 can be a high-ratio reducer, and a standard involute cylindrical gear, i.e., drive gear 21, is mounted on its output shaft 23, i.e., the rotating shaft. This cylindrical gear is used to drive face gear 3 to rotate.

[0180] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for installing a drive component of a large face gear transmission pair, characterized in that, Includes the following steps: S1: Based on the simulation model, simulate the meshing of the face gear and the drive gear of the drive component. When the simulated meshing imprint position meets the set meshing requirements, obtain the misalignment of the drive component relative to the center of the face gear in the simulation model. S2: The drive component is detachably mounted on an adjustment plate with mounting holes, so that the drive gear passes through the mounting holes; S3: Using the misalignment as the mounting position reference for the drive component relative to the center of the face gear, the adjustment plate carrying the drive component is mounted on the mounting base surface of the drive component, so that the drive gear meshes with the face gear. Installation complete; Specifically, a large face gear transmission pair drive component connection fixture is used for the installation method to complete the installation; The connecting fixture includes an adjustment plate (1), on which a mounting hole (11) is provided to allow the drive gear (21) to pass through. The two sides of the adjustment plate (1) have an included angle α, so that the adjustment plate (1) is a wedge-shaped plate with a linearly varying thickness. The included angle α is the algebraic sum of included angle α1 and included angle α2. Included angle α1 is the angle between the reference plane of the face gear (3) and the vertical line, and included angle α2 is the angle between the mounting base plane of the drive component (2) and the horizontal plane. One side surface of the adjustment plate (1) is mounted on the mounting base surface of the drive component (2), and the other side surface serves as the mounting surface of the drive component (2) so that the mounting surface of the drive component (2) is perpendicular to the reference surface of the face gear (3). The connecting fixture also includes an installation component (4). The adjustment plate (1) has grooves (12) distributed along the axial direction of the face gear (3) on the mounting surface. The drive gear (21) is located at the center of the base plate (22) of the drive component (2), and the base plate (22) is provided with a protrusion (221) whose position corresponds to the groove (12). The drive gear (21) of the drive component (2) passes through the mounting hole (11), and the protrusion (221) is embedded in the groove (12), so that the base plate (22) can be slidably connected to the adjustment plate (1) along the groove (12) and fixed by the mounting component (4); The mounting component (4) includes a fixing block (41), a clamping block (42), and a force application mechanism (43). The fixed stop (41) and clamping block (42) are both strip-shaped structures and are arranged on the mounting surface of the adjusting plate (1) in a direction perpendicular to the groove (12), respectively located on both sides of the mounting hole (11). The fixed stop (41) is fixedly connected to the adjusting plate (1), and the distance between the surface facing the mounting hole (11) and the center of the mounting hole (11) is half the length of the base plate (22). The clamping block (42) is movably connected to the adjusting plate (1), and the surface away from the mounting hole (11) is connected to the force application mechanism (43), so that the base plate (22) is pressed against the fixed stop block (41) under the drive of the force application mechanism (43).

2. The method for installing the drive component of a large face gear transmission pair according to claim 1, characterized in that, Step S1 specifically includes: S11: Construct the fitting surface of the drive gear tooth surface and the fitting surface of the face gear tooth surface to obtain the simulation model; S12: In the simulation model, under the preset axial error and offset error of the driving component relative to the center of the face gear, the simulated meshing imprint position of the driving gear tooth surface fitting surface and the face gear tooth surface fitting surface is calculated. S13: If the simulated meshing imprint position is not located at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface, modify the preset values ​​of the axial error and offset error of the drive component relative to the face gear center, and repeat step S12 until the simulated meshing imprint position is located at the midpoint of the tooth width and the high point of the tooth height of the face gear tooth surface fitting surface, and obtain the target simulated meshing imprint position. S14: The axial error and offset error corresponding to the position of the target simulated meshing imprint are used as the misalignment amount.

3. The method for installing the drive component of a large face gear transmission pair according to claim 2, characterized in that, Step S11 specifically includes: On a gear measuring center or coordinate measuring machine, the tooth surface coordinates of the drive gear and the tooth surface coordinates of the face gear are measured. The tooth surface coordinates of each gear are obtained by averaging several tooth surfaces that are evenly distributed around the axial direction. Based on NURBS surface fitting, the tooth surface coordinates of the drive gear and the tooth surface coordinates of the face gear are both fitted into NURBS surfaces, which serve as the tooth surface fitting surfaces of the drive gear and the face gear to obtain the simulation model.

4. The method for installing the drive component of a large face gear transmission pair according to claim 2, characterized in that, Step S12 specifically includes: In the simulation model, position transformation matrices are constructed for the tooth surface fitting surfaces of the driving gear and the tooth surface fitting surfaces of the face gear when they rotate in a fixed coordinate system. The position transformation matrix of the driving gear includes the driving gear rotation angle parameter, and the position transformation matrix of the face gear includes the axial error, offset error, and face gear rotation angle parameter. Input the rotation angle parameters of the face gear, and solve for the rotation angle parameters of the drive gear based on the position transformation matrix of each gear and the set contact conditions, thereby obtaining the meshing contact point; The simulated meshing imprint positions of the drive gear tooth surface fitting surface and the face gear tooth surface fitting surface are calculated based on the parameters at the meshing contact point.

5. The method for installing the drive component of a large face gear transmission pair according to claim 1, characterized in that, Prior to step S1, the method further includes: S0: Preparation steps; Step S0 specifically includes: Mounting surface gear; Obtain the angle α1 between the face gear reference plane and the vertical line, and the angle α2 between the mounting base plane of the drive component and the horizontal plane; The adjustment plate with mounting holes is prepared based on the included angles α1 and α2, and the included angle α on both sides of the adjustment plate is the algebraic sum of included angles α1 and α2.

6. The method for installing the drive component of a large face gear transmission pair according to claim 1, characterized in that, After step S3, the method further includes: S4: Fine-tune the mounting position of the adjustment plate carrying the drive component so that the actual meshing imprint of the drive gear and the face gear is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear. Step S4 specifically includes: S41: The drive component drives the drive gear to mesh and rotate with the face gear to obtain the actual meshing imprint; S42: When the actual meshing imprint position is not at the midpoint of the tooth width and the midpoint of the tooth height of the face gear, the installation position of the adjustment plate on the mounting base is finely adjusted according to the actual meshing imprint position. S43: Repeat steps S41 and S42 until the actual meshing imprint is located at the midpoint of the tooth width and the midpoint of the tooth height of the face gear.

7. The method for installing the drive component of a large face gear transmission pair according to claim 6, characterized in that, The adjustment plate is mounted on the mounting base of the drive component by fasteners; Step S42 specifically includes: S421: Loosen the fasteners between the adjustment plate and the mounting base; S422: Based on the relative position of the actual meshing imprint position with the midpoint of the tooth width and the midpoint of the tooth height of the face gear, a propulsion tool is used to push the drive component in a specific direction to move the adjustment plate a first set distance on the mounting base. S423: Tighten the fasteners between the adjustment plate and the mounting base.

8. The method for installing the drive component of a large face gear transmission pair according to claim 7, characterized in that, Step S422 specifically includes: When the center of the actual meshing imprint is close to the tooth tip of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis towards the face gear by a first set distance using a pushing tool. When the center of the actual meshing imprint is close to the tooth root of the face gear relative to the tooth height of the face gear, the driving component and the adjusting plate are pushed along the face gear axis away from the face gear by a first set distance using a pushing tool. When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed along the tangential direction of the face gear and the rotation direction of the face gear by a pushing tool to push the driving component and the adjusting plate a first set distance. When the center of the actual meshing imprint is close to the midpoint of the tooth width of the face gear, the driving component and the adjusting plate are pushed along the tangential direction of the face gear and against the rotational direction of the face gear by a first set distance using a propulsion tool.

9. A method for replacing the drive component of a large face gear transmission pair, characterized in that, The drive component to be replaced is installed using the installation method for the large face gear transmission pair drive component as described in any one of claims 1 to 8. The replacement method includes a disassembly step of the old drive component, the disassembly step including: Unload the mounting components between the old drive unit and the adjustment plate, and lock the old drive unit shaft and the face gear shaft; After the old drive component is lifted off the surface of the adjustment plate, it is moved a second predetermined distance away from the face gear along the face gear axis. After lifting the old drive component to a set height, move it a second set distance along the face gear axis toward the face gear side; The old drive unit was lifted and moved to the replacement platform to complete the disassembly.

10. The method for replacing the drive component of a large face gear transmission pair according to claim 9, characterized in that, It also includes an installation step for the new drive component, the installation step comprising: After rotating the new drive component shaft until its phase matches that of the old drive component, lock the new drive component shaft. The new drive component was lowered onto the adjustment plate; Install the mounting components between the new drive unit and the adjustment plate, and unlock the new drive unit shaft and face gear shaft to complete the installation.

11. A connecting fixture for a large face gear transmission pair drive component, characterized in that, The method for installing a large face gear transmission pair drive component according to any one of claims 1 to 8, wherein the connecting fixture includes an adjusting plate (1), and the adjusting plate (1) has a mounting hole (11) that allows the drive gear (21) to pass through. The two sides of the adjustment plate (1) have an included angle α, so that the adjustment plate (1) is a wedge-shaped plate with a linearly varying thickness. The included angle α is the algebraic sum of included angle α1 and included angle α2. Included angle α1 is the angle between the reference plane of the face gear (3) and the vertical line, and included angle α2 is the angle between the mounting base plane of the drive component (2) and the horizontal plane. One side surface of the adjustment plate (1) is mounted on the mounting base surface of the drive component (2), and the other side surface serves as the mounting surface of the drive component (2) so that the mounting surface of the drive component (2) is perpendicular to the reference surface of the face gear (3). The connecting fixture also includes an installation component (4). The adjustment plate (1) has grooves (12) distributed along the axial direction of the face gear (3) on the mounting surface. The drive gear (21) is located at the center of the base plate (22) of the drive component (2), and the base plate (22) is provided with a protrusion (221) whose position corresponds to the groove (12). The drive gear (21) of the drive component (2) passes through the mounting hole (11), and the protrusion (221) is embedded in the groove (12), so that the base plate (22) can be slidably connected to the adjustment plate (1) along the groove (12) and fixed by the mounting component (4); The mounting component (4) includes a fixing block (41), a clamping block (42), and a force application mechanism (43). The fixed stop (41) and clamping block (42) are both strip-shaped structures and are arranged on the mounting surface of the adjusting plate (1) in a direction perpendicular to the groove (12), respectively located on both sides of the mounting hole (11). The fixed stop (41) is fixedly connected to the adjusting plate (1), and the distance between the surface facing the mounting hole (11) and the center of the mounting hole (11) is half the length of the base plate (22). The clamping block (42) is movably connected to the adjusting plate (1), and the surface away from the mounting hole (11) is connected to the force application mechanism (43), so that the base plate (22) is pressed against the fixed stop block (41) under the drive of the force application mechanism (43).

12. The connecting fixture for the large face gear transmission pair drive component according to claim 11, characterized in that: The adjustment plate (1) is provided with a fastening hole (13) and can be detachably installed on the mounting base of the drive component (2) by a fastener (14) that passes through the fastening hole (13).

Images