Adjusting method for engaging the end gear of a driving component with a guide rail

Abstract

The application provides an assembling and adjusting method for the engagement of the end gear of a driving component and a guide rail, which comprises the following steps: using a dial gauge and a special measuring tool to assemble and adjust the engagement between the end gear of the driving component and the guide rail, so as to realize the normal engagement of the gear and the guide rail gear ring. The gap between the special tool and the top of the guide rail gear ring is measured, so as to obtain the adjustment amount of the output shaft of the driving component relative to the top circle of the guide rail gear ring, and the requirement that the center distance deviation between the axis of the end gear and the axis of the guide rail is-0.08mm to-0.02mm is met. According to the assembling and adjusting method, the adjustment and installation position of the driving component can be effectively controlled, the engagement division circle of the end gear and the guide rail gear ring tends to be regular, the engagement track is normal, and the method has important significance for the long service life and normal high efficiency operation of the mechanism.

Description

Technical Field

[0001] This invention belongs to the field of mechanism assembly technology, and specifically relates to an assembly and adjustment method for engaging the end gear of a drive component with a guide rail. Background Technology

[0002] Gear transmission is one of the most widely used mechanical transmission methods in modern equipment. It relies on the meshing between gear teeth to transmit motion and power, and has the characteristics of high transmission efficiency, compact structure, and stable reliability. Efficiency is an important parameter of gear transmission. Transmission efficiency not only requires high-precision machining and manufacturing methods for parts, but also the installation accuracy and adjustment methods of the mechanism are important factors affecting gear transmission efficiency. Improper gear installation and adjustment will aggravate tooth surface wear and even lead to tooth breakage and transmission failure. Excellent installation and adjustment methods can ensure the stability of gear transmission and reduce noise and impact vibration during the process.

[0003] Existing gear assembly and adjustment inspection methods generally rely on instruments such as dial indicators. This method is only suitable for the assembly and adjustment of conventional gears and can only achieve the assembly and adjustment of the center distance deviation of the gear transmission pair, but it cannot measure the parallelism deviation of the two axes. Summary of the Invention

[0004] The technical problem to be solved by this invention is: This invention proposes an assembly and adjustment method for meshing the end gear of the drive component with the guide rail, which solves the technical problem that conventional assembly and adjustment methods cannot solve for the assembly and adjustment of gears and gear rings. It can achieve high-precision assembly and adjustment of special gear transmissions, which is of great significance for the long-term, efficient and stable operation of gears.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for assembling and adjusting the end gear of a drive component to mesh with a guide rail, comprising:

[0006] Measure the coaxiality between the guide rail and the mounting flange to ensure that the coaxiality between the guide rail and the mounting flange meets the set threshold requirements;

[0007] After rotating the guide rail one revolution, observe whether the meshing trajectory l between the end gear and the guide rail gear ring is a complete straight line. If the meshing trajectory is not a complete straight line, add an adjusting shim at the mounting flange of the drive component to adjust the parallelism between the central axis of the end gear and the central axis of the guide rail.

[0008] If the meshing trajectory between the end gear and the guide rail gear ring is a complete straight line, then remove the end gear of the drive component, use the output shaft of the drive component as the installation reference, and connect and fix the special measuring fixture to the end of the output shaft of the drive component.

[0009] Rotate the guide rail one revolution and measure the gap between the measuring surface B of the special measuring fixture and the tooth tip of the guide rail gear ring to obtain the adjustment amount of the output shaft of the drive component relative to the tooth tip circle of the guide rail gear ring.

[0010] Based on the measured clearance between the measuring surface B of the special measuring fixture and the tooth tip of the guide rail gear ring, adjust the distance between the output shaft of the drive component and the center of the guide rail gear ring.

[0011] The adjustment and installation position of the drive component is determined to ensure that the meshing pitch circle of the end gear and the guide rail gear ring is regular, so that after the drive component is installed, the center distance deviation between the end gear axis and the guide rail axis meets the set requirements.

[0012] Furthermore, the coaxiality between the guide rail and the mounting flange is less than φ0.2mm.

[0013] Furthermore, the measurement of the coaxiality between the guide rail and the mounting flange includes:

[0014] Install and fix the dial indicator on the mounting flange, with the dial indicator head in contact with the inner ring of the guide rail. Rotate the guide rail to measure the coaxiality between the guide rail and the mounting flange.

[0015] Furthermore, the parallelism between the central axis of the end gear of the drive component and the central axis of the guide rail meets the requirement of ±0.04mm.

[0016] Furthermore, the dedicated measuring fixture includes a central positioning section, measuring blocks, and positioning plates. The central positioning section is provided with a slot, and its end face is a mounting surface C. A mounting hole is provided in the center of the mounting surface C for mounting with the end of the output shaft of the drive component via screws. Measuring blocks are symmetrically arranged on both sides of the central positioning section, and the measuring blocks are connected to the central positioning section by an arc-shaped transition section. The side of the measuring block is a measuring surface B, and positioning plates are respectively provided on the side of the measuring block. The surface of the positioning plate is a positioning surface A, and an L-shaped structure is formed between the measuring block and the positioning plate. Measuring surface B is an arc surface with the same radius as the inner side of the guide rail. After the dedicated measuring fixture is installed, it fits against the inner side of the guide rail. By measuring the gap between measuring surface B and the tip of the guide rail tooth, the adjustment amount of the adjusting shim relative to the tip circle of the guide rail tooth ring is obtained.

[0017] Furthermore, the material of the special measuring fixture is 9Cr18.

[0018] Furthermore, the thickness of the adjusting shim is 0.02mm, 0.1mm, 0.2mm or 0.5mm. Adjusting shims of different specifications and sizes can be selected as needed to achieve assembly and adjustment.

[0019] Furthermore, based on the measured clearance between the measuring surface B of the special measuring fixture and the tooth tip of the guide rail gear ring, after the drive component is assembled and adjusted, the center distance deviation between the end gear axis and the guide rail axis is required to be -0.08mm to -0.02mm.

[0020] Compared with the prior art, the present invention has the following technical advantages:

[0021] (1) The method for assembling and adjusting the end gear of the drive component and the guide rail provided by the present invention, based on the adjustment amount measured by the special tooling, satisfies the requirements that the center distance deviation between the end gear axis and the guide rail axis is -0.08mm to -0.02mm and the parallelism is ±0.04mm after the drive component is installed.

[0022] (2) The assembly and adjustment method of the end gear of the drive component meshing with the guide rail provided by the present invention can solve the technical problem that the conventional assembly and adjustment method cannot realize the assembly and adjustment of gear and gear ring. It can realize the high-precision assembly and adjustment of special gear transmission, which is of great significance for the efficient and stable operation of gears suitable for space stations for up to 15 years.

[0023] (3) The assembly and adjustment method provided by the present invention solves the technical problem of assembling and adjusting the end gear and the guide rail, and has important reference significance for the assembly and adjustment of special gear transmission methods. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the engagement between the end gear and the guide rail provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the coaxiality of the dial indicator measuring guide rail involved in this invention;

[0026] Figure 3 This is a schematic diagram of the meshing trajectory of the end gear on the guide rail gear ring involved in this invention;

[0027] Figure 4 This is a schematic diagram of the special measuring fixture provided by the present invention;

[0028] Figure 5 This is a schematic diagram showing the engagement of the special measuring fixture and guide rail provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the mounting interface for the drive component provided by the present invention. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings:

[0031] like Figure 1 As shown, the guide rail 2 is connected to the mounting flange 1 through the slewing support mechanism 3, and can achieve slewing motion by relying on the rolling amplitude in the slewing support mechanism 3, which can reduce wear and stabilize the fluctuation of friction torque during rotation.

[0032] The entire inner ring of guide rail 2 is made of involute gears, and the end gear 5 drives the guide rail 6 to rotate by meshing with the inner ring teeth of guide rail 6;

[0033] A method for assembling and adjusting the meshing of the end gear of a drive component with a guide rail includes using a dial indicator and a special measuring fixture to adjust the meshing between the end gear of the drive component and the guide rail.

[0034] Step 1: Install and fix dial indicator 7 on mounting flange 1. The dial indicator 7 is in contact with the inner ring of guide rail 2. Rotate guide rail 2 by hand to rotate it a full circle to measure the coaxiality between guide rail 2 and mounting flange 1. Ensure that the coaxiality between guide rail 2 and mounting flange 1 meets the requirement of better than φ0.2mm.

[0035] Step 2: After manually rotating the guide rail 2 one revolution, observe whether the meshing trajectory l between the end gear 5 and the guide rail 2 gear ring is a complete straight line to determine the requirement of ±0.04mm parallelism between the center axis of the end gear 5 and the center axis of the guide rail 2. If the meshing trajectory is not a complete straight line, add an adjusting shim 9 at the drive component mounting flange 8 to adjust the parallelism between the center axis of the end gear 2 and the center axis of the guide rail 2.

[0036] Step 3: Provided that the parallelism between the central axis of the end gear 5 and the central axis of the guide rail 2 meets the requirement of ±0.04mm, remove the end gear 5 of the drive component 4. Using the output shaft of the drive component 4 as the installation reference, connect and fix the special measuring fixture 6 to the end of the output shaft of the drive component 4 with screws.

[0037] The dedicated measuring fixture 6 comprises three parts: a central positioning section, measuring blocks, and positioning plates. The central positioning section has a slot, and its end face is the mounting surface C. Mounting surface C has a mounting hole in its center for screw mounting to the output shaft end of the drive component 4. Measuring blocks are symmetrically arranged on both sides of the central positioning section, connected to it by an arc-shaped transition section. The side of the measuring blocks is the measuring surface B, and positioning plates are respectively installed on the side of the measuring blocks. The surface of the positioning plates is the positioning surface A, forming an L-shaped structure between the measuring blocks and the positioning plates. The mounting surface C is designed to have a mating mounting interface with the end gear 5. The dedicated measuring fixture 6 is connected and fixed to the end gear 5 by screws. The measuring surface B of the dedicated measuring fixture 6 is an arc surface with an inner radius equal to that of the guide rail 2. After installation, the dedicated measuring fixture 6 can fit snugly against the inner side of the guide rail 2. Figure 6 As shown; by measuring the gap between the measuring surface B and the tip of the tooth of the guide rail 2, the adjustment amount of the adjustment shim 9 relative to the tip circle of the tooth ring of the guide rail 2 is obtained.

[0038] Step 4: Rotate the guide rail one revolution and measure the gap between the B plane of the special measuring fixture 6 and the tooth tip of the guide rail 2 gear ring, thereby obtaining the adjustment amount of the output shaft of the drive component 4 relative to the tooth tip circle of the guide rail 2 gear ring.

[0039] Step 5: Since the mounting hole of the drive component mounting flange 8 is a through hole and the mounting position of the drive component 4 on the mounting flange 1 is a threaded hole, the center distance between the output shaft of the drive component 4 and the gear ring of the guide rail 2 is adjusted according to the gap measured in step 4, using the gap between the through hole and the threaded hole.

[0040] Step 6: Adjust and determine the installation position of the drive component 4 to ensure that the meshing pitch circle of the end gear 5 and the guide rail 2 gear ring is regular, and meet the requirement that the center distance deviation between the axis of the end gear 5 and the axis of the guide rail 2 after the drive component 4 is installed is -0.08mm to -0.02mm, so as to ensure that the end gear 5 and the guide rail 2 mesh normally and achieve long service life and high efficiency operation.

[0041] The special measuring tooling used is made of 9Cr18 material;

[0042] The requirement of ±0.04mm parallelism between the central axis of the end gear 5 and the central axis of the guide rail 2 can be obtained from the simulation results of the contact motion between the end gear 5 and the guide rail 2. When the center distance deviation is ±0.08mm, lines m and n still intersect the contact trace l (i.e., the meshing trajectory), and the contact point moves along the theoretical contact trace on the tooth surface. l The line is the theoretical contact trace on the tooth surface. The m-line (i.e., the theoretical motion trajectory of the contact point of the end gear in the absolute coordinate system) and the n-line (i.e., the theoretical motion trajectory of the contact point of the end gear in the absolute coordinate system) are the theoretical motion trajectories of the contact point in the absolute coordinate system.

[0043] The adjusting shims 9 are available in thicknesses of 0.02mm, 0.1mm, 0.2mm, and 0.5mm. Different sizes of adjusting shims 9 can be selected as needed to achieve the desired adjustment.

[0044] Example:

[0045] This invention proposes an assembly and adjustment method for meshing the end gear of a drive component with a guide rail. After the drive component 4 is installed according to the adjustment amount measured by the special tooling 6, the center distance deviation between the axis of the end gear 5 and the axis of the guide rail 2 is -0.08mm to -0.02mm, and the parallelism is ±0.04mm.

[0046] like Figure 2 As shown, first fix the dial indicator 7 mounting bracket to the mounting flange 1. The dial indicator 7 head contacts the inner ring of the guide rail 2. Rotate the guide rail 2 by hand to make a full circle. The coaxiality of the guide rail 2 relative to the mounting flange 1 in the circumferential direction can be measured. Record the coaxiality deviation of the guide rail relative to the mounting flange 1 in the four quadrants and the positions of the maximum and minimum deviations on the guide rail 2.

[0047] Provided that the coaxiality between guide rail 2 and mounting flange 1 is better than φ0.2mm, remove the mounting bracket of dial indicator 7 and adjust the position of the end gear 5 of the drive component;

[0048] like Figure 3 As shown, after manually rotating the guide rail 2, the requirement of ±0.04mm parallelism between the axis of the end gear 5 and the axis of the guide rail 2 is determined by observing whether the meshing trajectory between the end gear 5 and the gear ring of the guide rail 2 is a complete straight line.

[0049] If the meshing trajectory between the end gear 5 and the guide rail 2 gear ring is not a complete straight line, it can be adjusted by using the shims at the drive component mounting flange 8. Figure 4 As shown, the drive component mounting flange 8 consists of two semi-circular brackets. The parallelism between the axis of the end gear 5 and the axis of the guide rail 2 can be adjusted by adding a shim to one-quarter side of the bracket.

[0050] like Figure 5 As shown, a special measuring fixture 6 is designed. The special fixture 6 has the same interface as the end gear 5 to realize the installation of the output shaft of the drive component 4.

[0051] Rotate guide rail 2 to the position where the coaxiality deviation with mounting flange 1 is minimal, such as... Figure 5 , 6 As shown, the end gear 5 of the drive component is removed, and the special measuring fixture 6 uses the output shaft of the drive component 4 as the installation reference. After installation, surface A of the special fixture 6 is in contact with the bottom surface of the guide rail 2, and surface B is in contact with the tooth tip circle of the guide rail 2 gear ring.

[0052] By manually rotating the guide rail 2, the gap between the tooling B surface and the tooth tip circle of the guide rail 2 gear ring can be measured, thereby obtaining the adjustment amount of the output shaft of the drive component 4 relative to the guide rail 2.

[0053] like Figure 4 As shown, the mounting flange 8 of the drive component has a through hole with a diameter of 7mm, and the mounting flange 1 is located at the ST6 threaded sleeve. The center distance between the output shaft of the drive component 4 and the gear ring of the guide rail 2 can be adjusted through this gap.

[0054] Based on this adjustment method, the adjustment and installation position of the drive component 4 can be effectively controlled, ensuring that the meshing pitch circle of the end gear 5 and the guide rail 2 gear ring tends to be regular, meeting the requirement that the center distance deviation between the axis of the end gear 5 and the axis of the guide rail 2 after the drive component 4 is installed is -0.08mm to -0.02mm, ensuring that the end gear 5 and the guide rail 2 mesh normally to achieve long service life and high efficiency operation.

[0055] The parts of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A method for assembling and adjusting the end gear of a drive component to mesh with a guide rail, characterized in that, include: The coaxiality between the guide rail (2) and the mounting flange (1) is measured to ensure that the coaxiality between the guide rail (2) and the mounting flange (1) meets the set threshold requirements; After rotating the guide rail (2) one revolution, observe whether the meshing trajectory of the end gear (5) and the guide rail (2) gear ring is a complete straight line. If the meshing trajectory is not a complete straight line, add an adjustment shim (9) at the drive component mounting flange to adjust the parallelism between the central axis of the end gear (5) and the central axis of the guide rail (2). If the meshing trajectory of the end gear (5) and the guide rail (2) gear ring is a complete straight line, then remove the end gear (5) of the drive component (4), and use the output shaft of the drive component (4) as the installation reference to connect and fix the special measuring fixture (6) to the end of the output shaft of the drive component (4); Rotate the guide rail (2) one revolution and measure the gap between the measuring surface (B) of the special measuring fixture (6) and the tooth tip of the guide rail (2) to obtain the adjustment amount of the output shaft of the drive component (4) relative to the tooth tip circle of the guide rail (2). Based on the measured clearance between the measuring surface (B) of the special measuring fixture (6) and the tooth tip of the guide rail (2), adjust the center distance between the output shaft of the drive component (4) and the tooth ring of the guide rail (2). After adjustment, the installation position of the drive component (4) is determined to ensure that the meshing pitch circle of the end gear (5) and the guide rail (2) is regular, so that after the drive component (4) is installed, the center distance deviation between the axis of the end gear (5) and the axis of the guide rail (2) meets the set requirements. The special measuring fixture (6) includes a central positioning part, a measuring block and a positioning plate; the central positioning part is provided with a slot, the end face of the central positioning part is the mounting surface (C), the mounting surface (C) is provided with a mounting hole in the middle, which is used to install with the output shaft end of the drive component (4) by screws; the measuring blocks are symmetrically arranged on both sides of the central positioning part, and the measuring blocks are connected to the central positioning part by an arc section transition, the side of the measuring block is the measuring surface (B), and the side of the measuring block is provided with positioning plates, the surface of the positioning plates is the positioning surface (A), and the measuring blocks and positioning plates form an L-shaped structure; the measuring surface (B) is an arc surface, which is equal to the inner radius of the guide rail (2), and the special measuring fixture (6) fits against the inner side of the guide rail (2) after installation; by measuring the gap between the measuring surface (B) and the tooth tip of the guide rail (2), the adjustment amount of the adjusting shim (9) of the output shaft of the drive component (4) relative to the tooth tip circle of the guide rail (2) is obtained.

2. The method for assembling and adjusting the end gear of the drive component to mesh with the guide rail according to claim 1, characterized in that, The coaxiality of the guide rail (2) and the mounting flange (1) is less than φ0.2mm.

3. The method for assembling and adjusting the end gear of the drive component to mesh with the guide rail according to claim 1, characterized in that, The coaxiality between the guide rail (2) and the mounting flange (1) was measured, including: The dial indicator (7) is installed and fixed on the mounting flange (1). The dial indicator (7) head contacts the inner ring of the guide rail (2). The guide rail (2) is rotated to measure the coaxiality between the guide rail (2) and the mounting flange (1).

4. The method for assembling and adjusting the end gear of the drive component to mesh with the guide rail according to claim 1, characterized in that, The parallelism between the central axis of the end gear (5) of the drive component (4) and the central axis of the guide rail (2) meets the requirement of ±0.04mm.

5. The method for assembling and adjusting the end gear of the drive component to mesh with the guide rail according to claim 1, characterized in that, The special measuring tool (6) is made of 9Cr18.

6. The method for assembling and adjusting the end gear of the drive component to mesh with the guide rail according to claim 1, characterized in that, The thickness of the adjusting shim (9) is 0.02mm, 0.1mm, 0.2mm and 0.5mm. Adjusting shims (9) of different specifications and sizes can be selected as needed to achieve the installation and adjustment.

7. The method for assembling and adjusting the end gear of the driving component to mesh with the guide rail according to claim 1, characterized in that, Based on the measured clearance between the measuring surface (B) of the special measuring fixture (6) and the tooth tip of the guide rail (2), after the drive component (4) is assembled and adjusted, the center distance deviation between the axis of the end gear (5) and the axis of the guide rail (2) is -0.08mm to -0.02mm.

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