Automatic coloring method and device for contact detection of gear pairs

Abstract

This invention relates to the field of gear pair contact detection technology, and more specifically, to an automatic coloring method and apparatus for gear pair contact detection. The apparatus includes a rotary mechanism and a developer supply device. The rotary mechanism has a working surface that moves along a rotary path. Multiple coloring teeth are arranged on the working surface along the rotary path direction. Each coloring tooth is used to mesh with the gear to be colored. The developer supply device is connected to a developer delivery channel, which is connected to each of the coloring teeth. Because the automatic coloring device is driven by the gear pair for meshing motion, no additional drive device is needed to color the gears. Compared to manual coloring, this effectively improves coloring efficiency and reduces labor intensity. Furthermore, because each coloring tooth meshes with the gear to be colored sequentially, each tooth of the gear to be colored can effectively contact the coloring tooth for coating, thus solving the problem of missed coating.

Description

Technical Field

[0001] This invention relates to the field of gear pair contact detection technology, and more specifically, to an automatic coloring method and apparatus for gear pair contact detection. Background Technology

[0002] In the assembly process of an automotive transmission, the installation position of each gear pair is crucial, directly affecting the transmission's performance. Incorrect installation positions, such as excessively close or far center distances between gears, can lead to abnormal gear contact, thus impacting transmission performance. Currently, contact testing is used to evaluate this state. First, a developer is manually applied to the driving gear with a brush. Then, the driving gear is rotated manually or by a motor, engaging with the driven gear. The developer is transferred to the driven gear, and the contact state is assessed by evaluating the size of the colored area on the driven gear or by observing changes in the colored area on the driving gear.

[0003] In contact testing, gears are typically coated manually. However, manual coating is extremely labor-intensive, especially for the evaluation of mass-produced multi-tooth gears. The coating efficiency is low, and manual coating cannot meet the requirements of large-scale production. Furthermore, manual coating may result in missed areas, leaving some tooth surfaces uncovered and affecting testing accuracy. For some enclosed gearboxes, approximately half of the gears are hidden inside the gearbox during post-installation testing. Therefore, when applying the developer, the upper exposed gears are easier to coat, while the lower gears require manual manipulation to ensure sufficient space before coating. When driving the gear pair by motor, the rotational inertia makes it difficult to control the rotation angle, resulting in low efficiency and inconvenience for manual coating. Summary of the Invention

[0004] To overcome the problems of low efficiency, high labor intensity, and missed coating in manual coloring for gear contact detection in the prior art, the first aspect of the present invention provides an automatic coloring device for gear pair contact detection.

[0005] A second aspect of the present invention provides an automatic coloring method for detecting contact between gear pairs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an automatic coloring device for gear pair contact detection, comprising: a rotary mechanism and a colorant supply device, wherein the rotary mechanism has a working surface that moves along a rotary path, and a plurality of coloring teeth are arranged on the working surface along the rotary path direction, each of the coloring teeth being used to mesh with the gear to be colored for coloring, and the colorant supply device being connected to a colorant delivery channel, the colorant delivery channel being connected to each of the coloring teeth respectively.

[0007] In the technical solution of this invention, the color developer supply device delivers the color developer to each color-changing tooth through the color developer delivery channel, and the color is applied by the color-changing tooth meshing with the gear to be colored. Since the automatic coloring device is driven by the gear pair to mesh, no additional drive device is needed to color the gear. Compared with manual coloring, this can effectively improve coloring efficiency and reduce labor intensity. At the same time, since each color-changing tooth meshes with the gear to be colored in sequence, each tooth of the gear to be colored can effectively contact the color-changing tooth to apply the color, thus solving the problem of missed coating.

[0008] Furthermore, the stained tooth includes a tooth-shaped matrix and a staining layer. The tooth-shaped matrix has a first surface for engagement and a second surface for non-engagement. A developer channel is formed inside the tooth-shaped matrix. A developer outlet is provided on the first surface, and a developer inlet is provided on the second surface. Both the developer outlet and the developer inlet are connected to the developer channel. The staining layer covers the first surface.

[0009] In this scheme, the developer enters the developer channel from the developer inlet of the tooth-shaped substrate, and then flows out to the second surface from the developer outlet. It then contacts the gear through the dyeing layer for coloring. The first surface is a non-meshing surface, so it will not affect the injection of the developer.

[0010] Furthermore, the color developer flow channel includes a main channel and multiple branch channels located inside the toothed matrix. Each branch channel is connected to the main channel, the main channel is connected to the color developer inlet, and each branch channel is connected to the color developer outlet.

[0011] In this scheme, the colorant is evenly distributed onto the dyed teeth through the main channel and each branch channel, so as to facilitate the full coloring of the gears.

[0012] Furthermore, the dyed layer is made of a flexible porous material.

[0013] In this solution, the flexible porous material can adsorb the colorant to facilitate the coloring of the gears. At the same time, the flexible porous material can deform to a certain extent when it comes into contact with the gears, allowing for full contact with the gears.

[0014] Furthermore, an installation component is connected to the working surface, and the installation component extends along the rotation path direction and has an adjustment groove. The dyeing tooth is connected to the adjustment groove and can adjust its installation position along the rotation path direction.

[0015] In this solution, by adjusting the installation position of each dyeing tooth, the automatic coloring device can be adapted to coloring gear pairs with different parameters, and each dyeing tooth and gear meshes correctly.

[0016] Furthermore, the dyeing teeth are detachably connected to the working surface.

[0017] In this solution, it is possible to disassemble and replace dyed teeth with different parameters to match the dyed teeth with the gear pair to be tested, while also facilitating the repair and replacement of failed dyed teeth.

[0018] Furthermore, the color developer delivery channel includes a main color developer pipe, a secondary color developer pipe, and a central rotary joint. One end of the main color developer pipe is connected to the color developer supply device, and the other end of the main color developer pipe is connected to the inlet of the central rotary joint. One end of each secondary color developer pipe is connected to each outlet of the central rotary joint, and the other end of each secondary color developer pipe is connected to each of the staining teeth.

[0019] In this solution, the main pipe and auxiliary pipes of the color developer are connected by a central rotary joint. The central rotary joint can rotate with the rotary mechanism to prevent the main pipe and auxiliary pipes of the color developer from getting tangled and knotted.

[0020] Furthermore, the rotary mechanism includes a frame, rollers, and a rotary belt. A pair of rollers are rotatably connected to both ends of the frame, and the rotary belt is sleeved on the pair of rollers. The outer surface of the rotary belt is the working surface.

[0021] In this solution, rollers are rotatably connected to the frame to facilitate the rotation of the rotary belt. When the dyeing teeth mesh with the gear pair to be tested, they drive the rotary belt and rollers to rotate, allowing for coloring without the need for an additional drive mechanism.

[0022] Furthermore, the frame includes an outer frame, a connecting rod, and a rotating shaft. The rotating shaft is rotatably connected to both ends of the outer frame, and the connecting rod is fixedly connected to the middle of the outer frame. The roller is mounted on the rotating shaft, and the central rotary joint is mounted on the connecting rod.

[0023] In this design, a rotating shaft is provided to facilitate the installation of the reloading belt, and a connecting rod is provided to facilitate the installation of the rotary joint.

[0024] This invention also provides an automatic coloring method for gear pair contact detection, which is implemented using an automatic coloring device and includes the following steps:

[0025] S1: Set the automatic coloring device to the corresponding position of the gear pair to be tested, and adjust the position of each coloring tooth so that the coloring tooth can mesh with the gear to be colored.

[0026] S2: The developer is delivered to each stained tooth through the developer supply device.

[0027] S3: Start the gear pair to be tested. The operation of the gear pair drives the continuous meshing of each dyeing tooth to paint the gear to be colored.

[0028] S4: Keep the gear pair running until the coloring is complete.

[0029] In this solution, the rotation of the gear pair itself drives the automatic coloring device to rotate, and the colorant is transferred to the gear through the dyeing teeth, thereby realizing automatic coloring of the gear. This method is more efficient than manual coloring, can effectively reduce labor intensity, and reduce the problem of missed coating.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. The automatic coloring device for gear pair contact detection of the present invention includes a colorant supply device that delivers colorant to each coloring tooth through a colorant delivery channel. The coloring tooth engages with the gear to be colored for contact coloring. Since the automatic coloring device is driven by the gear pair for meshing motion, no additional drive device is required to color the gears. Compared with manual coloring, this effectively improves coloring efficiency and reduces labor intensity. Furthermore, because each coloring tooth engages sequentially with the gear to be colored, each tooth of the gear to be colored can effectively contact the coloring tooth for coating, thus solving the problem of missed coating.

[0032] 2. The automatic coloring device for gear pair contact detection of the present invention has an adjustable position of the coloring teeth along the rotation path direction, so that the automatic coloring device can be applied to the coloring of gear pairs with different parameters. Each coloring tooth can be disassembled and replaced, which can not only replace the coloring teeth to match the gear pair to be tested, but also facilitate the repair and replacement of failed coloring teeth.

[0033] 3. The automatic coloring device for gear pair contact detection of the present invention uses a central rotary joint to connect the main pipe of the colorant material and each secondary pipe of the colorant material respectively, and delivers the colorant to each rotating coloring tooth, which can avoid the main pipe of the colorant material and each secondary pipe of the colorant material tangling and knotting.

[0034] 4. The automatic coloring device for gear pair contact detection of the present invention has a main channel and multiple branch channels in the dyeing tooth, which can evenly distribute the colorant to the surface of the dyeing tooth, thereby fully coloring the gear.

[0035] 5. The automatic coloring method for gear pair contact detection of the present invention utilizes the rotation of the gear pair itself to drive the automatic coloring device to rotate, and transfers the colorant to the gear through the dyeing teeth, thereby realizing automatic coloring of the gear. This method is more efficient than manual coloring, can effectively reduce labor intensity, and reduce the problem of missed coating. Attached Figure Description

[0036] Figure 1This is a schematic diagram of the overall structure of the automatic coloring device for gear pair contact detection of the present invention.

[0037] Figure 2 This is a top view of the stained tooth;

[0038] Figure 3 yes Figure 2 Sectional view of the AA section of the middle-stained tooth;

[0039] Figure 4 yes Figure 3 BB section sectional view of the stained tooth;

[0040] Figure 5 yes Figure 3 A cross-sectional view of the stained tooth at the CC section.

[0041] Figure 6 yes Figure 3 DD section view of the stained tooth;

[0042] Figure 7 yes Figure 5 Enlarged view of point E on the stained tooth;

[0043] Figure 8 This is a front view of the rotary mechanism;

[0044] Figure 9 yes Figure 8 FF section view of the rotary mechanism;

[0045] Figure 10 yes Figure 8 A magnified view of point G on the rotary mechanism;

[0046] Figure 11 This is a schematic diagram showing the relative positional relationship between the automatic coloring device and the gear pair to be tested;

[0047] Figure 12 This is a flowchart of the automatic coloring method for gear pair contact detection of the present invention.

[0048] In the attached diagram: 1. Rotary mechanism; 11. Frame; 111. Outer frame; 112. Connecting rod; 113. Rotating shaft; 12. Roller; 13. Rotary belt; 131. Working surface; 14. Mounting component; 141. Adjusting groove; 2. Colorant supply device; 3. Dyeing tooth; 31. Tooth-shaped substrate; 311. First surface; 312. Second surface; 313. Main channel; 314. Branch channel; 315. Colorant outlet; 316. Colorant inlet; 32. Dyeing layer; 4. Colorant conveying channel; 41. Main colorant pipe; 42. Secondary colorant pipe; 43. Central rotary joint; 100. Driving gear; 200. Driven gear. Detailed Implementation

[0049] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0050] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0051] The technical solution of the present invention will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0052] Example 1

[0053] refer to Figures 1 to 11 This embodiment discloses an automatic coloring device for gear pair contact detection, including a rotary mechanism 1 and a colorant supply device 2. The rotary mechanism 1 has a working surface 131 that moves along the rotary path. Multiple coloring teeth 3 are arranged on the working surface 131 along the rotary path direction. Each coloring tooth 3 is used to mesh with the gear to be colored and make contact with it. The colorant supply device 2 is connected to a colorant delivery channel 4, which is connected to each coloring tooth 3.

[0054] In this embodiment, the developer supply device 2 delivers the developer to each dyeing tooth 3 through the developer delivery channel 4, and the dyeing tooth 3 engages with the gear to be painted to apply the color. Since the automatic painting device is driven by the gear pair, no additional drive device is needed to paint the gears. Compared with manual painting, this can effectively improve painting efficiency and reduce labor intensity. At the same time, since each dyeing tooth 3 engages with the gear to be painted in sequence, each tooth of the gear to be painted can contact the dyeing tooth 3 for effective painting, thus solving the problem of missed painting.

[0055] The turning path can be racetrack-shaped, circular, or other closed loop. For example, refer to... Figure 1 and Figure 8In this embodiment, the rotation path is racetrack-shaped, with both the upper and lower sides moving along straight paths. The coloring teeth 3 on the lower side of the rotation path are used to mesh with the gear pair, and their meshing relationship is similar to that between a gear and a rack. The rotation of the gear pair drives the rotation mechanism 1 to move, so that each coloring tooth 3 sequentially meshes with the gear at the upper end of the gear pair for coloring.

[0056] In other embodiments, the rotation path may also be circular, with a meshing relationship approximating that between gears. In other embodiments, the automatic coloring device may also be installed in other locations on the gear pair, such as to the side or below, so that the coloring tooth 3 can mesh with one of the gears in the gear pair.

[0057] In this embodiment, the colorant supply device 2 can be a colorant pump, which can pump the colorant through the colorant delivery channel 4 to each coloring tooth 3, thereby coloring the gear. During testing, the colorant is delivered to each coloring tooth 3 by setting an appropriate pressure.

[0058] During the initial batch testing, the pump pressure is adjusted to obtain the appropriate developer thickness. Under normal circumstances, the developer is applied after all the tooth surfaces of the gear under test are sequentially engaged with the dyed tooth 3. To improve the dyeing effect, multiple engagements can be performed.

[0059] During the testing process, the gear directly meshing with the dyeing tooth 3 is designated as gear A, and the other gear in the gear pair is designated as gear B. If the contact test result of the gear pair is evaluated based on the contact spots on gear B, the gear pair can be continuously rotated multiple times during the testing process, driving the automatic coloring device to continuously rotate multiple times, ensuring a continuous supply of colorant to the dyeing tooth 3. If the contact test result of the gear pair is evaluated based on the area and shape of the colorant detached from gear A, then the testing stops after each tooth surface of gear A has meshed with the automatic coloring device once, meaning that gear A is only coated once.

[0060] refer to Figures 2 to 4 The dyed tooth 3 includes a tooth-shaped base 31 and a dyeing layer 32. The tooth-shaped base 31 has a first surface 311 for engagement and a second surface 312 for non-engagement. A color developer channel is opened inside the tooth-shaped base 31. A color developer outlet 315 is provided on the first surface 311 and a color developer inlet 316 is provided on the second surface 312. Both the color developer outlet 315 and the color developer inlet 316 are connected to the color developer channel. The dyeing layer 32 covers the first surface 311.

[0061] In this embodiment, the colorant enters the colorant channel from the colorant inlet 316 of the tooth-shaped substrate 31, and then flows out from the colorant outlet 315 to the second surface 312. It then contacts the gear through the dyeing layer 32 for coloring. The first surface 311 is a non-meshing surface, so it will not affect the injection of the colorant.

[0062] It is understood that, since the first surface 311 of the tooth-shaped substrate 31 is covered with a dyeing layer 32, the first surface 311 of the tooth-shaped substrate 31 used for meshing does not directly contact the gear, but rather meshes indirectly with the gear through the dyeing layer 32. The second surface 312 may include the bottom surface where the dyed tooth 3 is mounted and other non-meshing sides. For example, in this embodiment, the developer inlet 316 is opened in the middle of the bottom surface of the dyed tooth 3. The shape of the tooth-shaped substrate 31 can be adjusted according to the tooth profile of the gear to be tested.

[0063] refer to Figures 2 to 4 The developer channel includes a main channel 313 and multiple branch channels 314 located inside the tooth-shaped substrate 31. Each branch channel 314 is connected to the main channel 313, which is connected to the developer inlet 316. Each branch channel 314 is connected to a developer outlet 315. The developer is evenly distributed onto the colored teeth 3 through the main channel 313 and the branch channels 314 to facilitate thorough coloring of the gears.

[0064] Specifically, with Figure 4 Taking the direction shown as an example, the developer inlet 316 is located on the second surface 312 at the top of the staining tooth 3, and the main channel 313 is located laterally inside the staining tooth 3 at a slightly upper position. The developer inlet 316 is connected to the middle of the main channel 313. Below the main channel 313, multiple branch channels 314 are vertically distributed, and each branch channel 314 further extends laterally or obliquely into more branch channels 314. The ends of each branch channel 314 extend to the first surface 311 and connect to the developer outlet 315. The cross-sectional area of ​​the main channel 313 and each branch channel 314 can vary. For example, the cross-sectional area of ​​the main channel 313 can be larger, and the cross-sectional area of ​​the branch channels 314 near the developer outlet 315 can be smaller. This ensures the developer flow rate and velocity, and increases the number of branch channels 314 so that the developer can be evenly distributed on the first surface 311. In other embodiments, the direction and distribution of the main channel 313 and the branch channel 314 can be adjusted for different tooth shapes of the stained tooth 3, with the aim of making the colorant fully distributed on the surface of the stained tooth 3.

[0065] The dyeing layer 32 is made of a flexible porous material. This flexible porous material can absorb the developer, facilitating the coloring of the gears. Simultaneously, it deforms upon contact with the gear, ensuring sufficient contact. In this embodiment, the dyeing layer 32 is made of sponge. The surface of the dyed teeth 3 is covered by the flexible dyeing layer 32, which withstands pressure during meshing, ensuring a good transfer effect and preventing damage to the gear surface during coloring. Because the dyeing layer 32 has a certain degree of flexibility, the meshing between the dyed teeth 3 and the gear does not need to perfectly meet the mechanical design requirements, such as module or pressure angle; deviations are permissible. The goal is to ensure sufficient contact between the dyeing layer 32 and the gear, thereby achieving adequate coloring of the gear tooth surface.

[0066] refer to Figures 8 to 10 A mounting component 14 is connected to the working surface 131. The mounting component 14 extends along the rotation path and has an adjustment groove 141. The dyeing teeth 3 are connected to the adjustment groove 141 and their installation position can be adjusted along the rotation path. By adjusting the installation position of each dyeing tooth 3, the automatic coloring device can be adapted to coloring gear pairs with different parameters, ensuring correct meshing between each dyeing tooth 3 and the gear. In this embodiment, the dyeing teeth 3 are detachably connected to the mounting component 14 on the working surface 131. Dyeing teeth 3 with different parameters can be disassembled and replaced to match the dyeing teeth 3 with the gear pair to be tested, while also facilitating the repair and replacement of faulty dyeing teeth 3.

[0067] Specifically, the mounting component 14 can be positioned on both sides of the rotation path. Each of the two bottom sides of the dyeing tooth 3 has a threaded hole, through which a bolt passes into the adjusting groove 141 and is threadedly connected to the dyeing tooth 3. The dyeing tooth 3 can be disassembled and replaced by unscrewing the bolts. Adjusting the position of the dyeing tooth 3 on the adjusting groove 141 by turning the bolts can accommodate different gear pair coloring requirements. The number of dyeing teeth 3 can be selected according to actual needs. When testing gear pairs with the same parameters on the production line, it is not necessary to adjust the dyeing teeth 3, thus allowing for continuous coloring tests. It is understood that during use, adjusting the dyeing teeth 3 to meet the conditions for meshing with the gear pair, or ensuring that the tooth shape and position of the dyeing teeth 3 allow for continuous meshing with the gear, results in a better coloring effect.

[0068] refer to Figure 1The color developer delivery channel 4 includes a main color developer pipe 41, secondary color developer pipes 42, and a central rotary joint 43. One end of the main color developer pipe 41 is connected to the color developer supply device 2, and the other end is connected to the inlet of the central rotary joint 43. One end of each secondary color developer pipe 42 is connected to its respective outlet of the central rotary joint 43, and the other end is connected to each dyeing tooth 3. The central rotary joint 43 connects the main color developer pipe 41 and the secondary color developer pipes 42, and the central rotary joint 43 can rotate with the rotary mechanism 1 to prevent the main color developer pipe 41 and the secondary color developer pipes 42 from tangling or knotting.

[0069] In this embodiment, the central rotary joint 43 can be located at the exact center of the rotary mechanism 1, so that the distance from the central rotary joint 43 to each dyeing tooth 3 is more balanced, especially for the circular rotary path. The rotation center axis of the central rotary joint 43 can be set parallel to the rotation center axis of the rotary mechanism 1, and the central rotary joint 43 is less likely to get tangled or knotted when rotating synchronously with the rotary mechanism 1.

[0070] Example 2

[0071] refer to Figures 1 to 11 This embodiment is similar to Embodiment 1, except that in this embodiment, further reference is made to... Figure 8 and Figure 9 The rotary mechanism 1 includes a frame 11, rollers 12, and a rotary belt 13. A pair of rollers 12 are rotatably connected to both ends of the frame 11, and the rotary belt 13 is fitted onto the pair of rollers 12. The outer surface of the rotary belt 13 is the working surface 131. In this embodiment, the rollers 12 are rotatably connected to the frame 11 to facilitate the rotation of the rotary belt 13. When the dyeing teeth 3 mesh with the gear pair to be tested, they drive the rotary belt 13 and rollers 12 to rotate, allowing for coloring without an additional drive mechanism. In actual use, the frame 11 can be fixed to an external fixture, thereby installing the rotary mechanism 1 in a suitable position so that the dyeing teeth 3 can mesh with the gear pair.

[0072] In this embodiment, the rotating belt 13 can be made of steel belt, which has good corrosion resistance. Multiple mounting members 14 are continuously and fixedly connected to the steel belt, and adjusting grooves 141 are provided on each mounting member 14. The adjusting groove 141 can be an oblong groove extending along the rotation direction. The mounting members 14 can be made of thin sheet metal or plastic, capable of withstanding certain torsion and deformation and recovering their shape, allowing the mounting member 14 located at the roller 12 to deform along the arc of the roller 12. The roller 12 can be made of steel, which also has good corrosion resistance.

[0073] In other embodiments, the rotary mechanism 1 may employ other transmission methods, such as chain drive. The rotary belt 13 is a conveyor chain, the roller 12 is a sprocket, and the mounting component 14 can be fixed to the outer surface of the conveyor chain without affecting its operation.

[0074] refer to Figure 9 The frame 11 includes an outer frame 111, a connecting rod 112, and a rotating shaft 113. The rotating shaft 113 is rotatably connected to both ends of the outer frame 111, and the connecting rod 112 is fixedly connected to the middle of the outer frame 111. Rollers 12 are mounted on the rotating shaft 113, and a central rotary joint 43 is mounted on the connecting rod 112. In this embodiment, the rotating shaft 113 facilitates the installation of the reloading belt, and the connecting rod 112 facilitates the installation of the rotary joint. Figure 9 Taking the direction shown as an example, the upper and lower sides of the diagram are horizontally arranged as outer frames 111, which serve to connect the entire frame 11. At both ends of the outer frames 111, there are vertically arranged rotating shafts 113, and the two ends of the rotating shafts 113 can be rotatably connected to the outer frames 111 through bearings.

[0075] Example 3

[0076] refer to Figure 12 as well as Figures 1 to 11 This embodiment discloses an automatic coloring method for gear pair contact detection, which is implemented using an automatic coloring device. The automatic coloring method includes the following steps:

[0077] S1: Set the automatic coloring device to the corresponding position of the gear pair to be tested, and adjust the position of each coloring tooth 3 so that the coloring tooth 3 can mesh with the gear to be colored.

[0078] S2: The color developer is delivered to each stained tooth 3 through the color developer supply device 2.

[0079] S3: Start the gear pair to be tested. The operation of the gear pair drives the continuous meshing of each dyeing tooth 3 to paint the gear to be colored.

[0080] S4: Keep the gear pair running until the coloring is complete.

[0081] In step S1, the corresponding position refers to the position where the dyeing tooth 3 can mesh with one of the gears in the gear pair. For example, in this embodiment, the automatic coloring device is placed above the gear.

[0082] Before step S2, the following steps may be included: connecting the color developer supply device 2 and each color developer delivery channel 4 to each dyeing tooth 3. The color developer delivery channel 4 includes a main color developer material pipe 41, multiple secondary color developer material pipes 42, and a central rotary joint 43. The main color developer material pipe 41 is connected to the color developer supply device 2 and then connected to the inlet of the central rotary joint 43. The secondary color developer material pipes 42 are then connected from the outlet of the central rotary joint 43 to each dyeing tooth 3.

[0083] In step S2, the color developer supply device 2 is a color developer pump. The color developer pump is started and a certain pressure is maintained until the color developer seeps out from the dye layer 32 of the dyeing tooth 3.

[0084] In step S3, the gear pair includes a driving gear 100 and a driven gear 200. Starting the gear pair to be tested means rotating the driving gear 100, which in turn drives the driven gear 200 to rotate. The dyeing tooth 3 can mesh with the driving gear 100 and apply color to the driving gear 100. The driving gear 100 will transfer the colorant to the driven gear 200.

[0085] In step S4, coloring completion means: 1) If the dyeing tooth 3 meshes with the driving gear 100, the contact state is evaluated by the contact spots on the driven gear 200. During the detection process, the gear pair is kept running continuously for multiple revolutions, driving the automatic coloring device to run continuously for multiple revolutions, and keeping the developer on the dyeing tooth 3 continuously supplied until the developer on the driving gear 100 is fully transferred to the driven gear 200; 2) If the dyeing tooth 3 meshes with the driving gear 100, the contact state is evaluated by the area and shape of the developer that has fallen off the driven gear 200. Then, the process is completed after the driving gear 100 meshes with the dyeing tooth 3 of the automatic coloring device for one revolution.

[0086] The batch testing process also includes step S5: remove the tested gear pair, replace it with the gear pair to be tested, and repeat steps S3 to S4 above.

[0087] In this embodiment, the rotation of the gear pair itself drives the automatic coloring device to rotate, and the colorant is transferred to the gear through the coloring teeth 3, thereby realizing automatic coloring of the gear. This method is more efficient than manual coloring, can effectively reduce labor intensity, and reduce the problem of missed coating.

[0088] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic coloring device for contact detection of gear pairs, characterized in that: The device includes a rotary mechanism (1) and a colorant supply device (2). The rotary mechanism (1) has a working surface (131) that moves along the rotary path. Multiple coloring teeth (3) are arranged on the working surface (131) along the rotary path direction. Each coloring tooth (3) is used to mesh with the gear to be colored and apply color. The colorant supply device (2) is connected to a colorant delivery channel (4). The colorant delivery channel (4) is connected to each of the coloring teeth (3). The stained tooth (3) includes a tooth-shaped base (31) and a staining layer (32). The tooth-shaped base (31) has a first surface (311) for engagement and a second surface (312) for non-engagement. The staining layer (32) covers the first surface (311). The working surface (131) is connected to an installation part (14), the installation part (14) extends along the rotation path direction and has an adjustment groove (141), the dyeing tooth (3) is connected in the adjustment groove (141) and can adjust the installation position along the rotation path direction; The dyeing tooth (3) is detachably connected to the working surface (131); The rotary mechanism (1) includes a frame (11), rollers (12) and a rotary belt (13). A pair of rollers (12) are rotatably connected to both ends of the frame (11). The rotary belt (13) is sleeved on the pair of rollers (12). The outer surface of the rotary belt (13) is the working surface (131). The frame (11) includes an outer frame (111), a connecting rod (112), and a rotating shaft (113). The two ends of the outer frame (111) are rotatably connected to the rotating shaft (113), and the connecting rod (112) is fixedly connected to the middle of the outer frame (111). The roller (12) is mounted on the rotating shaft (113). The color developer delivery channel (4) includes a central rotary joint (43), which is mounted on the connecting rod (112).

2. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The toothed substrate (31) has a developer channel inside, a developer outlet (315) is provided on the first surface (311), and a developer inlet (316) is provided on the second surface (312). The developer outlet (315) and the developer inlet (316) are both connected to the developer channel.

3. The automatic coloring device for gear pair contact detection according to claim 2, characterized in that: The color developer flow channel includes a main channel (313) and a plurality of branch channels (314) located inside the toothed matrix (31). Each branch channel (314) is connected to the main channel (313), the main channel (313) is connected to the color developer inlet (316), and each branch channel (314) is connected to the color developer outlet (315).

4. The automatic coloring device for gear pair contact detection according to claim 2, characterized in that: The dyeing layer (32) is made of a flexible porous material.

5. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The color developer delivery channel (4) also includes a color developer main pipe (41) and a color developer secondary pipe (42). One end of the color developer main pipe (41) is connected to the color developer supply device (2), and the other end of the color developer main pipe (41) is connected to the inlet of the central rotary joint (43). One end of each color developer secondary pipe (42) is connected to each outlet of the central rotary joint (43), and the other end of each color developer secondary pipe (42) is connected to each of the staining teeth (3).

6. An automatic coloring method for contact detection of gear pairs, characterized in that: The automatic coloring device described in any one of claims 1 to 5 is used to achieve the following method: setting the automatic coloring device at the corresponding position of the gear pair to be tested, adjusting the position of each coloring tooth (3) so that the coloring tooth (3) can mesh with the gear to be colored; delivering the coloring agent to each coloring tooth (3) through the coloring agent supply device (2); starting the gear pair to be tested, and driving each coloring tooth (3) to mesh continuously through the operation of the gear pair to color the gear to be colored; keeping the gear pair running until the coloring is completed.

Images