An auxiliary device for marking teeth on a double intermediate shaft gear.

Abstract

This utility model relates to the field of transmissions, specifically to an auxiliary device for marking teeth on dual intermediate shaft gears; a guide rail, which is fixed above the intermediate shaft by a clamping device, and the length direction of the guide rail is parallel to the axial direction of the intermediate shaft; at least one slider, which is slidably disposed on the guide rail, wherein the slider can be locked at any position on the guide rail by fasteners, and the slider has a through hole for guiding the marking tool to align with the top surface of the gear teeth; a marking mechanism, which is disposed on the slider and is used to lock the slider above the target gear; this device, through the cooperation of the guide rail and the clamping device, ensures that the axis of the guide rail is parallel to the axis of the intermediate shaft, eliminates systematic errors caused by inaccurate alignment due to manual visual inspection, and significantly improves the reference accuracy of tooth marking.

Description

Technical Field

[0001] This utility model relates to the field of transmissions, specifically to an auxiliary device suitable for marking the teeth of dual intermediate shaft gears. Background Technology

[0002] In the existing technology, dual intermediate shaft transmissions are widely used in heavy trucks, construction machinery and other fields due to their advantages such as high load-bearing capacity and high reliability. Dual intermediate shaft transmissions cover multiple gear transmissions from 6 to 16 gears. During the assembly process of dual intermediate shaft transmissions, the assembly accuracy directly affects the gear meshing effect and the transmission life.

[0003] During assembly, marking paint must first be applied to the top surfaces of the outer teeth of the constantly meshing gears on the upper and lower intermediate shafts, directly opposite each other. Then, marking paint is applied to any two adjacent teeth of the dual-shaft gears. The same markings are then made on the two adjacent teeth on the opposite side in the corresponding direction. Finally, the gears are meshed and assembled according to the markings. Currently, the assembly process typically relies on manual visual inspection to mark and paint the top surfaces of the upper and lower intermediate shaft teeth. Incorrect marking can easily lead to assembly errors, causing gears to fail to rotate or gearboxes to break. This is especially problematic because different transmissions have different diameters of dual intermediate shaft gears, and the gear types can be spur or helical. Using traditional visual inspection is both inefficient and prone to errors.

[0004] Therefore, to address the current problems with tooth alignment marking of dual intermediate shaft gears, a more efficient and lower-cost device is needed to improve the assembly quality and efficiency of tooth alignment marking of dual intermediate shaft gears. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary device for marking the teeth of gears with dual intermediate shafts. The slide rail is fixed to the intermediate shaft by a clamping device, and the slider on the slide rail can move arbitrarily on the same straight line. When the slider moves above the corresponding gear, it aligns with the tooth top surface on the intermediate shaft. Different gears are marked with a marker, ensuring the accuracy of the tooth marking. This saves time and effort and solves the problem of low accuracy of manual visual positioning in the assembly technology in the background, which leads to assembly errors and low operating efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model proposes an auxiliary device for marking tooth alignment in double intermediate shaft gears, comprising: The guide rail is fixed above the intermediate shaft by a clamping device, and the length direction of the guide rail is parallel to the axial direction of the intermediate shaft. At least one slider is slidably disposed on a guide rail, wherein the slider can be locked at any position on the guide rail by fasteners, and the slider has a through hole for guiding a marking tool to align with the top surface of the gear teeth; A marking mechanism, which is disposed on the slider, is used to lock the slider above the target gear.

[0007] As a further improvement, the slider includes a central slider and two side sliders; The middle slider is located in the middle of the guide rail, and the two side sliders can be moved independently on both sides of the middle slider.

[0008] As a further improvement, the centers of the through holes on the middle slider and the side slider are all located on the same straight line.

[0009] As a further improvement, the marking mechanism includes a vertical plate that can be fixed to the slider, and the through hole is formed on the vertical plate.

[0010] As a further improvement, the bottom of the vertical plate is provided with an inwardly curved clamping part, which is adapted to the end face of the gear.

[0011] As a further improvement, the fastener is a bolt, and the slider is provided with a threaded hole. By tightening the bolt, the slider can be pressed and fixed onto the guide rail.

[0012] As a further improvement, baffles are also installed at both ends of the guide rail, which are used to limit the sliding stroke of the slider.

[0013] As a further improvement, the guide rail is engraved with a length scale on its side.

[0014] As a further improvement, the cross-section of the guide rail is one of I-shape, rectangle or T-shape.

[0015] As a further improvement, the clamping device is an adjustable clamp that can accommodate intermediate shafts of different diameters.

[0016] Compared with the prior art, this utility model achieves the following technical effects: This device, through the cooperation of the guide rail and clamping device, can be quickly installed on intermediate shafts of different diameters, ensuring that the axis of the guide rail is parallel to the axis of the intermediate shaft, eliminating systematic errors caused by inaccurate alignment due to manual visual inspection, and significantly improving the reference accuracy of the gear markings; in addition, the linear movement of the slider along the guide rail further ensures that multiple gear marking points are located on the same axis, avoiding meshing problems caused by marking position deviations.

[0017] The marking mechanism on the slider guides the marking tool to mark perpendicularly to the tooth tip. This structure is simple and reliable, easy to operate, and adaptable to gears of different sizes, making it highly versatile and effectively overcoming the marking difficulties caused by differences in tooth shape in traditional methods. The slider can adopt a design combining a middle slider and two side sliders, and can achieve quick positioning and locking through fasteners. This structure is not only easy to adjust, but also maintains stability during the marking process, preventing marking errors caused by equipment shaking or displacement.

[0018] This device has a simple overall structure and is easy to use. Its standardized and modular design also facilitates mass production and maintenance. It has good economic benefits and promotional value, significantly improves the assembly quality and production efficiency of transmissions, and has good practical value and industrial application prospects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the vertical plate structure of this utility model; Figure 4 This is a dual intermediate shaft transmission structure, which is a current technology. Figure 5 This is a schematic diagram illustrating the use of this device.

[0020] Reference numerals in the attached diagram: 1. Guide rail; 2. Left slider; 3. Middle slider; 4. Right slider; 5. Left vertical plate; 6. Right vertical plate; 7. Left baffle; 8. Right baffle; 9. Bolt. Detailed Implementation

[0021] The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Rather, the embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] See Figure 1 and Figure 2 This embodiment proposes an auxiliary device for marking the teeth of a double intermediate shaft gear, comprising: Guide rail 1, which is fixed above the intermediate shaft by a clamping device, and the length direction of guide rail 1 is parallel to the axial direction of the intermediate shaft; At least one slider is slidably disposed on the guide rail 1, wherein the slider can be locked at any position on the guide rail 1 by fasteners, and the slider has a through hole for guiding the marking tool to align with the top surface of the gear teeth; A marking mechanism, which is disposed on the slider, is used to lock the slider above the target gear.

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] See Figure 4 In the assembly process of a dual intermediate shaft transmission, gear alignment marking is a critical step, as its accuracy directly affects the gear meshing quality and the overall lifespan of the machine. Traditional manual visual inspection methods suffer from inaccurate positioning, low efficiency, and susceptibility to errors. Therefore, this embodiment proposes an auxiliary device that effectively solves the aforementioned technical problems by combining mechanical positioning with a guiding structure.

[0025] This device establishes a guide rail 1 parallel to the axis of the intermediate shaft, and achieves rapid and accurate positioning of multiple gears by linearly moving a slider on the guide rail 1. The marking mechanism guides the marking tool to work perpendicular to the tooth tip surface by opening through holes, thereby ensuring the consistency of the marking point position and the orthogonality of the direction, and avoiding marking errors caused by viewing angle deviation or unstable operation. The entire device has a simple structure, flexible adjustment, and combines versatility and reliability, and is suitable for intermediate shafts and gear types of different specifications.

[0026] This device mainly includes a guide rail 1, a slider system, and a marking mechanism. The guide rail 1, as a basic structural component, is fixed above the intermediate shaft by a clamping device, and its length direction is kept parallel to the axis, thus providing an accurate longitudinal reference for the entire device.

[0027] In this embodiment, the cross-section of the guide rail 1 can be one of an I-shape, a rectangle, or a T-shape to balance rigidity and lightweight requirements. The I-shape structure is preferred in this embodiment. Specifically, the guide rail 1 can also be provided with a length scale on its side, which can help operators quickly locate the approximate position of the slider and improve operating efficiency. The guide rail 1 is also provided with an elongated hole, which cooperates with the through hole on the slider to facilitate marking with a marking tool. In this embodiment, the marking tool is preferably a marker pen.

[0028] See Figure 2 In this embodiment, the slider consists of a middle slider 3 and two side sliders, namely the left slider 2 and the right slider 4. All three sliders can slide independently on the guide rail 1 and can be locked at any position by fasteners. In this embodiment, the fastener is preferably a bolt 9, but it is not limited to this and other structures, such as fixing pins, can also be used.

[0029] Specifically, the middle slider 3 is usually located in the middle of the guide rail 1, while the left slider 2 and right slider 4 can be arranged symmetrically or asymmetrically according to the actual position of the gear. The centers of the through holes on the middle slider 3, left slider 2 and right slider 4 must be kept in the same straight line to ensure that multiple marking points are located on the same axis, which meets the assembly process requirements of the dual intermediate shaft gearbox.

[0030] In this embodiment, the marking mechanism mainly consists of a left vertical plate 5 and a right vertical plate 6, which are fixed to the slider. See also... Figure 3 The left vertical plate 5 and the right vertical plate 6 are fastened together by bolts 9. By adjusting the distance between the left vertical plate 5 and the right vertical plate 6, the slider can be fixed above the target gear. In this embodiment, the bottom of the left vertical plate 5 and the right vertical plate 6 can also be provided with an inwardly curved clamping part. The shape of the clamping part is adapted to the end face of the gear. It can slightly fit the gear during marking, which plays a role in assisting positioning and preventing shaking.

[0031] It should be noted that this marking mechanism is not only applicable to spur gears, but can also be adapted to the end face profile of helical gears by adjusting the shape of the clamping part, and can be adjusted according to actual usage requirements.

[0032] In this embodiment, the guide rail 1 is also provided with a left baffle 7 and a right baffle 8 at both ends. The left baffle 7 and the right baffle 8 are fixed to the two ends of the guide rail 1 by bolts 9. When the slider moves to the end of the guide rail 1, it contacts the left baffle 7 or the right baffle 8, thereby achieving braking.

[0033] In this embodiment, the clamping device is an adjustable clamp, such as a V-shaped block pressure plate, a clamp, or other structures. These structures are common existing technologies and will not be elaborated on here.

[0034] See Figure 5 The method of this device is as follows: The operator first fixes the guide rail 1 above the intermediate shaft using the clamping device, ensuring that it is parallel to the axis; then, according to the distribution position of the gears, the middle slider 3 is moved above the largest diameter gear, clamped to both sides of the end face of the gear by the marking mechanism and tightened with bolts 9, and the marker pen is passed through the middle through hole of the slider to complete the marking of the top surface of the tooth of the largest diameter gear; then the left slider 2 and the right slider 4 are moved, and the above operation is repeated to complete the marking and drawing of the top surface of the other gear teeth. The whole process does not require repeated measurement or visual alignment, which greatly reduces the difficulty of operation and time cost.

[0035] This device features a simple structure, low manufacturing cost, and ease of installation and debugging, making it suitable for mass production applications. Furthermore, through standardized and modular design, the device can be expanded or adjusted according to actual needs, such as increasing the number of sliders or replacing the clamping parts with different shapes, further broadening its application range.

[0036] It should be noted that in the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An auxiliary device for marking the teeth of a double intermediate shaft gear, characterized in that, include: The guide rail is fixed above the intermediate shaft by a clamping device, and the length direction of the guide rail is parallel to the axial direction of the intermediate shaft. At least one slider is slidably disposed on a guide rail, wherein the slider can be locked at any position on the guide rail by fasteners, and the slider has a through hole for guiding a marking tool to align with the top surface of the gear teeth; A marking mechanism, which is disposed on the slider, is used to lock the slider above the target gear.

2. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The slider includes a middle slider and two side sliders; The middle slider is located in the middle of the guide rail, and the two side sliders can be moved independently on both sides of the middle slider.

3. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 2, characterized in that, The centers of the through holes on the middle slider and the side slider are all located on the same straight line.

4. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The marking mechanism includes a vertical plate that can be fixed to the slider, and the through hole is formed on the vertical plate.

5. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 4, characterized in that, The bottom of the vertical plate is provided with an inwardly curved clamping part, which is adapted to the end face of the gear.

6. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The fastener is a bolt, and the slider has a threaded hole. By tightening the bolt, the slider can be pressed and fixed onto the guide rail.

7. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, It also includes baffles installed at both ends of the guide rail, which are used to limit the sliding stroke of the slider.

8. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The guide rail has a length scale engraved on its side.

9. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The cross-section of the guide rail is one of I-shape, rectangle or T-shape.

10. The auxiliary device for marking teeth of a double intermediate shaft gear according to claim 1, characterized in that, The clamping device is an adjustable clamp that can accommodate intermediate shafts of different diameters.

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