Detection device for tractor gearbox production and processing

By designing a detection device that combines a scraper with a pressing mechanism, the problem of relying on manual experience for red lead powder application was solved, achieving efficient and uniform gear coating and reducing detection errors and costs.

CN224095654UActive Publication Date: 2026-04-07LUOYANG ZHUOYU MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In the current technology for manufacturing tractor gearbox gears, the red lead powder application method relies on manual experience, which is inefficient, easily contaminates the gears, and uneven application leads to inspection errors.

Method used

A detection device was designed, comprising a scraper, a storage box, a pressing mechanism, and a sliding baffle. The scraper and pressing mechanism work together to achieve uniform application of red lead paste, while the sliding baffle prevents the red lead paste from overflowing, ensuring application quality and efficiency.

Benefits of technology

It improves the efficiency and consistency of red lead paste application, reduces waste of red lead paste and gear contamination, lowers testing costs, and improves the reliability of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detection device for producing and processing a tractor gearbox, and relates to the technical field of gearboxes, the upper side of a scraper 2 is provided with an opening 1, the front side of the scraper 2 is provided with a storage box 4 for storing red lead paste, the upper part of the storage box 4 is provided with an upper cover 16 capable of being opened and closed, and the bottom of the storage box 4 is provided with a through hole 19 for discharging the red lead paste; the upper portion of the upper cover 16 is provided with a pressing mechanism 3 used for extruding the red lead paste in the storage box 4 to enable the red lead paste to be discharged to the tooth surface of the gear through the through hole 19, and two sliding baffles 5 used for preventing the red lead paste from overflowing from the two sides of the tooth surface in the scraping and smearing process are installed on the lower portion of the scraping plate 2 in a sliding mode. The driving mechanism 6 is used for driving the two sliding baffles 5 to synchronously move towards or away from each other; the red lead paste smearing device greatly facilitates smearing of red lead paste on the tooth surface of the gear, greatly reduces the operation difficulty of workers, avoids excessive waste of the red lead paste, and meanwhile prevents pollution to the gear.
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Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox technical field especially relates to a tractor gearbox production and processing is with detection device. BACKGROUND

[0002] With the development of modern science and technology, especially in the agricultural production process, tractor has become a common production and processing vehicle, tractor gearbox is a very important part on tractor, and its demand is increasing, in the production and processing of tractor gearbox, gear as an important component part of tractor gearbox, the quality of its production and processing is very important for the production of tractor gearbox.

[0003] At present, in order to ensure the transmission stability, noise control and service life of tractor gearbox gear during production and processing, gear meshing inspection is needed, the common inspection methods include contact spot method (red lead powder detection), noise test, three coordinate measurement, etc., wherein the contact spot method becomes the most commonly used method in production site because of simple operation, low cost and intuitive effect, the contact spot method is that red lead paste is mixed with oil to smear on the gear tooth surface, then the contact trace is displayed after the gear is engaged and driven to judge whether the tooth surface contact area is uniform, since red lead powder is accumulated on the tooth surface (thickness may be > 0.1mm) by using immersion method to smear red lead powder, the real contact area is covered, and the engagement state is misjudged, therefore, the method of brush smearing, spraying, rolling or finger sleeve smearing is used, and the following problems exist when the gear is smeared with red lead paste:

[0004] 1, the red lead paste is smeared by using the brush, and the smearing completely depends on the personal experience of workers, so that the smearing quality is not easy to control, and the efficiency is low;

[0005] 2, although the spraying method is high in efficiency and uniformity, but needs special equipment, so that the cost is high, and pollution is easy to produce;

[0006] 3, although the rolling method can realize fast and large area smearing, but red lead paste is easy to accumulate at the root / tooth top, and the precision is low;

[0007] 4, although the finger sleeve smearing method is flexible, but the smearing thickness is not easy to control, and hands are easy to be polluted;

[0008] Therefore, a tractor gearbox production and processing detection device capable of overcoming the above problems and facilitating red lead powder smearing is needed. UTILITY MODEL CONTENTS

[0009] To overcome the shortcomings of the prior art, this utility model discloses a testing device for the production and processing of tractor gearboxes. This utility model greatly facilitates the application of red lead paste to the gear tooth surface, significantly reduces the operational difficulty for workers, avoids excessive waste of red lead paste, and prevents contamination of the gears.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A testing device for tractor gearbox manufacturing includes a scraper.

[0012] A storage box, located on the front of the scraper, is used to store red lead paste. The bottom of the storage box has a through hole for discharging red lead paste.

[0013] The pressing mechanism is located on the upper part of the storage box and is used to squeeze the red lead paste in the storage box so that the red lead paste is discharged through the through hole to the gear tooth surface.

[0014] A sliding baffle is movable and located on both sides of the lower end of the scraper to prevent red lead paste from overflowing from both sides of the tooth surface during the scraping and application process.

[0015] The drive mechanism is used to drive the two sliding baffles to move synchronously towards or away from each other.

[0016] Furthermore, the storage box has an openable and closable top cover.

[0017] Furthermore, the pressing mechanism includes:

[0018] The connecting rod has an upper cover and a gap that extends through the upper cover;

[0019] The pressing head is located at the end of the connecting rod body on the upper part of the cover;

[0020] A movable pressure plate is located at the end of the connecting rod body at the lower part of the upper cover;

[0021] A spring, fitted onto the connecting rod between the pressing head and the upper cover, is used to reset the movable pressure plate after pressing.

[0022] Furthermore, the upper end of the sliding baffle is provided with a groove that matches the width of the scraper, and the two sides of the groove corresponding to the length direction of the scraper are open structures.

[0023] Furthermore, the drive mechanism includes:

[0024] The mounting plate has two sides on the back of the scraper.

[0025] A two-way lead screw is rotatably mounted between two mounting plates to drive two sliding baffles to move synchronously in opposite directions or in opposite directions.

[0026] A handle, located at the end of a bidirectional lead screw that passes through the mounting plate, is used to drive the bidirectional lead screw to rotate.

[0027] Furthermore, the bottom of the storage box is provided with several through holes along the length of the scraper, and the upper ends of the two sliding baffles are provided with extended rods that are parallel to the bottom surface of the storage box and are used to block the through holes.

[0028] Furthermore, the diameter of the through hole is less than 1.5 mm or it is equipped with a valve structure to prevent the red lead paste from dripping naturally.

[0029] Furthermore, the lower end of the front of the scraper is provided with an inclined scraping surface for evenly scraping the red lead paste.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] With the cooperation of the scraper and the pressing mechanism, the staff can complete the application of red lead ointment with one hand, which significantly improves the application efficiency, reduces the reliance on personal experience, and ensures the consistency of application quality.

[0032] By setting up sliding baffles, red lead paste is effectively prevented from overflowing from both sides of the gear teeth, which not only avoids contaminating the gears but also saves the amount of red lead paste used and reduces testing costs.

[0033] By setting multiple through holes and extension rods, not only can a sufficient amount of red lead paste be squeezed out according to the width of the tooth surface, but the through holes located on the outer side of the tooth surface can also be sealed to avoid waste of red lead paste.

[0034] The rational design of the inclined scraping surface and through holes ensures the uniform distribution of red lead paste on the tooth surface, avoiding the detection error caused by uneven thickness in traditional methods and improving the reliability of the detection results.

[0035] This invention greatly simplifies the application of red lead paste during the contact spot test of gears, significantly reduces the operational difficulty for workers, avoids excessive waste of red lead paste, prevents gear contamination, and provides strong support for the high-quality production and processing of gears in the future. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the sliding baffle structure of this utility model;

[0038] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0039] Figure 4 This is a schematic diagram of the storage box and pressing mechanism of this utility model.

[0040] In the diagram: 1. Opening; 2. Scraper; 3. Pressing mechanism; 4. Storage box; 5. Sliding baffle; 6. Drive mechanism; 7. Inclined scraping surface; 8. Screw hole; 9. Groove; 10. Extension rod; 11. Two-way lead screw; 12. Mounting plate; 13. Rotary handle; 14. Pressing head; 15. Spring; 16. Top cover; 17. Connecting rod; 18. Movable pressure plate; 19. Through hole. Detailed Implementation

[0041] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0042] Please refer to the instruction manual appendix. Figures 1-4 This utility model provides a technical solution:

[0043] Example 1: A testing device for tractor gearbox production and processing includes a scraper 2, an opening 1 on the upper side of the scraper 2, a storage box 4 for storing red lead paste on the front of the scraper 2, an openable cover 16 on the upper part of the storage box 4, and a through hole 19 for discharging red lead paste at the bottom of the storage box 4. To prevent red lead paste from dripping naturally from the through hole 19, the diameter of the through hole 19 is less than 1.5 mm or a valve structure is provided. The upper part of the cover 16 is provided with a pressing mechanism 3 for squeezing the red lead paste in the storage box 4 and discharging the red lead paste through the through hole 19 to the gear tooth surface. Specifically, the pressing mechanism 3 includes a connecting rod 17 that passes through the cover 16, a pressing head 14 at the end of the connecting rod 17 located at the upper part of the cover 16, a spring 15 sleeved on the connecting rod 17 between the pressing head 14 and the cover 16, a movable pressure plate 18 at the end of the connecting rod 17 located at the lower part of the cover 16, and an inclined scraping surface 7 at the lower end of the front of the scraper 2.

[0044] When applying red lead paste, the operator inserts some fingers through the opening at the top of the scraper 2, with 1 positioned on the back of the scraper 2. This is then combined with the thumb and palm positioned on the front of the scraper 2 to easily and conveniently control the scraper 2. After the lower end of the scraper 2 is pressed against the gear tooth surface, the thumb presses the pressing head 14, applying force to the red lead paste in the storage box 4 using the movable pressure plate 18. The red lead paste is discharged through the through hole 19 at the bottom of the storage box 4 onto the gear tooth surface. Afterwards, the operator manipulates the scraper 2 to scrape and apply the red lead paste to the gear tooth surface, completing the application of red lead paste to the gear teeth and providing strong support for subsequent contact testing.

[0045] In Example 2, during the application of red lead paste, the paste easily overflows from both sides of the tooth surface, which not only contaminates the gears but also wastes the paste. Therefore, two sliding baffles 5 are slidably installed on the lower part of the scraper 2 to prevent the paste from overflowing from both sides of the tooth surface during application, and a drive mechanism 6 is provided to drive the two sliding baffles 5 to move synchronously towards or away from each other. Specifically, the upper end of the sliding baffle 5 has a groove 9 adapted to the width of the scraper 2. The two sides of the groove 9 corresponding to the length direction of the scraper 2 are open structures. The groove 9 allows the sliding baffle 5 to slide and engage with the lower end of the scraper 2. Mounting plates 12 are provided on both sides of the back of the scraper 2. Corresponding to the sliding baffle 5 on the back of the scraper 2, a bidirectional screw 11 is rotatably mounted between two corresponding mounting plates 12. Each of the two sliding baffles 5 on the back of the scraper 2 has a screw hole 8. The two ends of the bidirectional screw 11 are threadedly connected to the screw holes 8 on the two sliding baffles 5. One end of the bidirectional screw 11 passes through the mounting plate 12 and has a handle 13 at its end. The operator drives the bidirectional screw 11 to rotate by rotating the handle 13. The bidirectional screw 11 drives the two sliding baffles 5 to move synchronously towards each other, so that the two sliding baffles 5 abut against the tooth surfaces of the gears respectively. The sliding baffles 5 can be used to stop and limit the red lead paste, effectively preventing the red lead paste from overflowing and being wasted.

[0046] In Example 3, during the application of red lead paste, in order to ensure that the red lead paste in the storage box 4 can be evenly applied to the gear tooth surface, the bottom of the storage box 4 is provided with several through holes 19 arranged along the length of the scraper 2. The upper ends of the two sliding baffles 5 are provided with extension rods 10 that are parallel to the bottom surface of the storage box 4 and are used to block the through holes 19. When the two sliding baffles 5 are respectively against the two sides of the gear tooth surface, the several through holes 19 between the two sliding baffles 5 can leak out and smoothly discharge red lead paste to the tooth surface. The through holes 19 located on the outside of the two sliding baffles 5 are blocked by the extension rods 10.

[0047] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A testing device for the production and processing of tractor gearboxes, comprising a scraper (2), characterized in that, Also includes: Storage box (4) is located on the front of scraper (2) and is used to store red lead paste. The bottom of storage box (4) is provided with a through hole (19) for discharging red lead paste. The pressing mechanism (3) is located on the upper part of the storage box (4) and is used to squeeze the red lead paste in the storage box (4) so ​​that the red lead paste is discharged through the through hole (19) to the gear tooth surface. The sliding baffle (5) is movable and located on both sides of the lower end of the scraper (2) to prevent the red lead paste from overflowing from both sides of the tooth surface during the scraping and application process. The drive mechanism (6) is used to drive the two sliding baffles (5) to move synchronously towards each other or away from each other.

2. The testing device for tractor gearbox production and processing according to claim 1, characterized in that: The storage box (4) has an openable and closable top cover (16).

3. The testing device for tractor gearbox production and processing according to claim 2, characterized in that: The pressing mechanism (3) includes: The connecting rod (17) has an upper part of the cover (16) and the gap passes through the cover (16); The pressing head (14) is located at the end of the connecting rod (17) on the upper part of the cover (16); Movable pressure plate (18) is located at the end of the connecting rod (17) at the lower part of the upper cover (16); A spring (15) is fitted on the connecting rod (17) between the pressing head (14) and the upper cover (16) to reset the movable pressure plate (18) after pressing.

4. The testing device for tractor gearbox production and processing according to claim 1, characterized in that: The upper end of the sliding baffle (5) is provided with a groove (9) that matches the width of the scraper (2). The two sides of the groove (9) corresponding to the length direction of the scraper (2) are open structures.

5. The testing device for tractor gearbox production and processing according to claim 4, characterized in that: The drive mechanism (6) includes: Mounting plate (12) is provided with scraper (2) on both sides of the back; A two-way lead screw (11) is rotatably mounted between two mounting plates (12) to drive two sliding baffles (5) to move synchronously toward or away from each other; A handle (13) is located at the end of a bidirectional lead screw (11) that passes through the mounting plate (12) and is used to drive the bidirectional lead screw (11) to rotate.

6. The testing device for tractor gearbox production and processing according to claim 4, characterized in that: The storage box (4) has several through holes (19) arranged along the length of the scraper (2) at the bottom. The upper ends of the two sliding baffles (5) are provided with extension rods (10) that are parallel to the bottom surface of the storage box (4) and are used to block the through holes (19).

7. The testing device for tractor gearbox production and processing according to claim 6, characterized in that: The diameter of the through hole (19) is less than 1.5 mm or is equipped with a valve structure to prevent the red lead paste from dripping naturally.

8. The testing device for tractor gearbox production and processing according to claim 1, characterized in that: The scraper (2) has an inclined scraping surface (7) at the lower end of its front side for evenly scraping red lead paste.