Agricultural machinery bearing oil film thickness measuring equipment based on optical laser detection

Abstract

The invention discloses agricultural machinery bearing oil film thickness measuring equipment based on optical laser detection, and relates to the field of laser measuring instruments, the agricultural machinery bearing oil film thickness measuring equipment comprises a reserved base body, the upper end of the reserved base body is provided with an oil film laser detection part, and the film thickness is measured by using an interference effect generated by reflection of light waves on an upper interface and a lower interface of an oil film; a driving motor part is installed on the outer side of the reserved base body, and a movable nesting reserved part is installed at the upper end of the reserved base body in a nesting mode. The agricultural machinery bearing oil film thickness measuring equipment based on optical laser detection is provided with a guide locking detection structure, and a borne bearing workpiece is subjected to all-directional accurate measurement work through the guide locking detection structure, so that the self-locked bearing workpiece rotates circumferentially along the lower end of the oil film laser detection part, and the thickness of the bearing oil film is measured. Therefore, all-around oil film thickness measurement processing is uniformly performed on the whole agricultural machinery bearing, limitation of traditional point or segment type detection is avoided, circumferential dead-corner-free synchronous detection processing is realized, and the whole detection precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of laser measuring instrument technology, specifically to a device for measuring the oil film thickness of agricultural machinery bearings based on optical laser detection. Background Technology

[0002] Laser inspection technology has been widely used in the industrial field due to its advantages such as non-contact measurement, high precision, wide range and rapid detection. As a key mechanical component, the oil film thickness of agricultural machinery bearings directly affects the lubrication effect and service life. Laser inspection technology can provide high resolution and real-time monitoring capabilities to meet the needs of accurate measurement of bearing oil film thickness. For example, a bearing oil film thickness measuring device, as disclosed in patent CN118640811B, includes a support mechanism; a pretreatment mechanism is mounted on the support mechanism; an oil delivery mechanism is mounted on the support mechanism; and an optical measurement mechanism is mounted on the pretreatment mechanism. The support mechanism limits the bearing, the pretreatment mechanism pretreatments the bearing, the oil delivery mechanism delivers lubricating oil, and the optical measurement mechanism detects the oil film thickness. The device uses the pretreatment mechanism in conjunction with the support mechanism to pretreatment the bearing, and then uses the optical measurement mechanism in conjunction with the oil delivery mechanism to measure the oil film thickness of the bearing. For example, patent CN117128872A discloses a device and method for measuring the thickness of oil film in sliding bearings using laser scanning. The device includes a laser light source system, a semi-sealed housing, and a screen display controller. The screen display controller controls the laser light source system to perform laser scanning on the bearing to be tested on the detection platform inside the housing, so that the thickness of the oil film of the bearing to be tested can be directly read on the screen display, and the distribution of the oil film can be observed. The accuracy of the measurement is ensured by using an optical path detection system and a data processing system. Information can be automatically collected through the input program, realizing the automation of the measurement process. For example, the patent with publication number CN120627918A discloses a device and method for measuring the oil film thickness of a sliding bearing. The device includes a support ring fixed to a worktable, a sliding frame slidably connected to the support ring, a first threaded rod rotatably connected to the support ring, the first threaded rod being threadedly connected to the sliding frame, an optical measuring head being provided on the sliding frame, a motor being installed inside the worktable, a rotating shaft being fixedly connected to the output shaft of the motor, and a friction frame being provided on the support ring. By causing friction between the flexible component and the sliding block and the sliding bearing, the device simulates the situation where the sliding bearing is affected by friction during actual use. Most of the existing technologies mentioned above improve the overall structure. However, existing agricultural machinery bearing oil film thickness measurement equipment based on optical laser detection cannot uniformly measure the oil film thickness of the entire agricultural machinery bearing in all directions during operation. They mostly perform detection work on points or segments of the entire bearing and cannot achieve circumferential, blind-angle-free synchronous detection, resulting in certain limitations in their overall detection accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide an agricultural machinery bearing oil film thickness measurement device based on optical laser detection, so as to solve the problem mentioned in the background technology that it is impossible to uniformly measure the oil film thickness of the entire agricultural machinery bearing from all directions. Most of them are used to detect the position of points or segments of the whole, and cannot achieve circumferential synchronous detection without dead angles, resulting in certain limitations in the overall detection accuracy.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an agricultural machinery bearing oil film thickness measuring device based on optical laser detection, comprising a reserved substrate, an oil film laser detection component installed at the upper end of the reserved substrate, which uses the interference effect generated by the reflection of light waves at the upper and lower interfaces of the oil film to determine the film thickness; a drive motor component is installed on the outer side of the reserved substrate, and a movable nested reserved component is nested at the upper end of the reserved substrate, and the movable nested reserved component is nested and connected with the output end of the drive motor component; the bearing workpiece to be detected is placed on the outer side of the movable nested reserved component, and a guide limiting docking component is nested on the outer side of the movable nested reserved component, and a guide locking detection structure is provided between the movable nested reserved component and the guide limiting docking component, so that the bearing workpiece is subjected to precise measurement from all directions through the guide locking detection structure.

[0005] Furthermore, the guide locking detection structure is provided with a fixed reserved top block, which is fixedly connected to the outer side of the output end of the drive motor component. The outer side of the movable nested reserved part is provided with a reserved guide hole, and the guide limiting docking part is nested and docked along the reserved guide hole. When the fixed reserved top block on the outer side of the output end rotates, when the fixed reserved top block rotates to contact the outer inclined surface of the guide limiting docking part, the guide limiting docking part will be subjected to force and move outward along the inner side of the movable nested reserved part, thereby allowing the outwardly moving guide limiting docking part to adaptively lock the inner wall of the contacting bearing.

[0006] Furthermore, the inner side of the guide limiting docking component is provided with a reserved receiving groove, and the inner side of the reserved receiving groove is connected to an abutting nesting component, and the abutting nesting component and the guide limiting docking component are connected to each other.

[0007] Furthermore, the movable nested reserved component forms a nested rotation structure along the upper outer side of the reserved base, and when the fixed reserved top block rotates with the drive motor component to contact the outer inclined surface of the guide limit docking component, the guide limit docking component is subjected to force and forms a sliding structure along the inner side of the movable nested reserved component. The self-locked bearing workpiece rotates circumferentially along the lower end of the oil film laser detection component, thereby uniformly measuring the oil film thickness of the entire agricultural machinery bearing from all directions, avoiding the limitations of traditional point or segment detection.

[0008] Furthermore, the abutting nesting member at the lower end of the guide limiting docking member is pre-forced and moves, and the guide limiting docking member moves along the inner side of the guide limiting docking member through the reserved receiving groove. During the outward movement of the guide limiting docking member, the abutting nesting member on its outer side will be pre-forced, thereby displacing along the inner side of the guide limiting docking member, so that the upper inclined surface structure of the guide limiting docking member applies pressure to the contacting abutting moving member.

[0009] Furthermore, an auxiliary positioning structure is provided on the outer side of the guide limiting docking component, which performs adaptive multi-category locking processing on the inner wall of the contacting bearing workpiece through the auxiliary positioning structure; the auxiliary positioning structure is provided with a first return spring, and the lower end of the first return spring is connected to the upper end of the abutting nesting component, and the upper end of the first return spring is connected to the inner side of the guide limiting docking component.

[0010] Furthermore, a limiting external docking component is nested on the outer side of the guide limiting docking component, and the inner end of the limiting external docking component corresponds to the upper outer side of the abutting nesting component. The limiting external docking component is fixedly connected to the outer side of the abutting movable component, and the limiting external docking component and the outer side of the guide limiting docking component are connected by a spring. A second return spring is fixedly connected to the outer side of the guide limiting docking component, and the second return spring is abutted to the inner side of the movable nesting reserved component.

[0011] Furthermore, when the abutting nesting member moves to contact the abutting moving member, the abutting moving member is forced to move the limiting external docking member outward along the inner side of the guide limiting docking member.

[0012] Furthermore, the abutting nested component forms a nested sliding structure with the inner side of the guide limiting docking component through the first reset spring, and the guide limiting docking component forms an elastic movable structure along the inner side of the movable nesting reserved component through the second reset spring. The abutting movable component is forced to drive the limiting external docking component to move outward synchronously, thereby performing a secondary locking multi-directional positioning process on the inner wall of the bearing workpiece, making its overall circumferential inspection process more stable and efficient.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This agricultural machinery bearing oil film thickness measurement device based on optical laser detection is equipped with a guide-locking detection structure. This structure allows for precise measurement of the bearing workpiece from all angles. The drive motor rotates the fixed pre-reserved top block on the outer side of the output end. When the fixed pre-reserved top block rotates to contact the outer inclined surface of the guide-limiting docking piece, the guide-limiting docking piece is forced to move outward along the inner side of the movable nested pre-reserved piece. This allows the outwardly moving guide-limiting docking piece to self-lock against the inner wall of the contacting bearing. The self-locked bearing workpiece then rotates circumferentially along the lower end of the oil film laser detection component, thus uniformly measuring the oil film thickness of the entire agricultural machinery bearing from all angles. This avoids the limitations of traditional point or segment detection, achieving circumferential, blind-angle-free synchronous detection and ensuring overall detection accuracy. Furthermore, an auxiliary positioning structure is provided. This structure performs adaptive multi-category locking on the inner wall of the contacting bearing workpiece. During the outward movement of the guide limiting docking part, the outer abutting nesting part is pre-stressed, thus displacing along the inner side of the guide limiting docking part. This causes the upper inclined surface structure of the guide limiting docking part to press on the contacting abutting moving part, thereby causing the abutting moving part to be forced to move outward synchronously and extend. This provides a secondary locking multi-directional positioning process for the inner wall of the bearing workpiece, making the overall circumferential detection process more stable and efficient, avoiding arbitrary movement errors, and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the half-section three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the semi-sectional three-dimensional structure of the active nested reserved component of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the central part of the structure; Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed reserved top block of the present invention; Figure 6 This is a three-dimensional structural diagram of the drive motor component of the present invention; Figure 7 This is a three-dimensional structural diagram of the guide and limiting docking component of the present invention; Figure 8 This is a three-dimensional structural diagram of the abutting movable part of the present invention.

[0015] In the diagram: 1. Reserved substrate; 2. Oil film laser detection component; 3. Drive motor component; 4. Movable nested reserved component; 5. Fixed reserved top block; 6. Guide limit docking component; 7. Reserved guide hole; 8. Abutting nesting component; 9. Reserved receiving groove; 10. First reset spring; 11. Abutting movable component; 12. Limiting external docking component; 13. Second reset spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figure 1 - Figure 8 This invention provides the following technical solution: an agricultural machinery bearing oil film thickness measurement device based on optical laser detection. To address the problem of the inability to uniformly measure the oil film thickness of the entire agricultural machinery bearing from all angles, as most methods only measure points or segments, failing to achieve circumferential, blind-angle-free synchronous detection and thus limiting overall detection accuracy, this invention discloses a device comprising: an oil film laser detection component 2 mounted on the upper end of a reserved base 1, utilizing the interference effect generated by light wave reflection at the upper and lower interfaces of the oil film to determine the film thickness; a drive motor component 3 mounted on the outer side of the reserved base 1, and a movable nested reserved component 4 nested on the upper end of the reserved base 1, with the movable nested reserved component 4 nested and connected to the output end of the drive motor component 3; the bearing workpiece to be detected placed on the outer side of the movable nested reserved component 4; a guide limiting docking component 6 nested on the outer side of the movable nested reserved component 4; and a guide locking detection structure between the movable nested reserved component 4 and the guide limiting docking component 6, allowing for precise omnidirectional measurement of the bearing workpiece through the guide locking detection structure.

[0018] The guide locking detection structure is equipped with a fixed reserved top block 5, which is fixedly connected to the outside of the output end of the drive motor component 3. A reserved guide hole 7 is provided on the outer side of the movable nested reserved part 4, and the guide limiting docking part 6 is nested and docked along the reserved guide hole 7. A reserved receiving groove 9 is provided on the inner side of the guide limiting docking part 6, and an abutting nesting part 8 is connected through the inner side of the reserved receiving groove 9. The abutting nesting part 8 and the guide limiting docking part 6 are mutually docked. The movable nested reserved part 4 is along the reserved base 1. The upper outer side forms a nested rotating structure, and when the fixed reserved top block 5 rotates with the drive motor component 3 to contact the outer inclined surface of the guide limiting docking part 6, the guide limiting docking part 6 is subjected to force and forms a sliding structure along the inner side of the movable nested reserved part 4. The abutting nesting part 8 at the lower end of the guide limiting docking part 6 is pre-forced to move, and the guide limiting docking part 6 moves nested along the inner side of the guide limiting docking part 6 through the reserved receiving groove 9. After the bearing workpiece to be inspected is nested and placed on the outer side of the movable nested reserved part 4, inspection can be performed. In the testing process, a trace amount of fluorescent dye is added to the lubricating oil. The oil film area is stimulated by the laser irradiation of the oil film area by the oil film laser detection component 2. After the camera captures the fluorescence image, the light intensity distribution is analyzed by dedicated software (such as Koncerto-LIF), which enables the visualization measurement of the oil film thickness. Even submicron-level thin oil films can be quantitatively measured. The drive motor component 3 is started, which drives the fixed reserved top block 5 on the outer side of the output end to rotate. When the fixed reserved top block 5 rotates to contact the outer inclined surface of the guide limit docking part 6, the guide limit docking part 6 will be subjected to force and move outward along the inner side of the movable nested reserved part 4. This allows the outwardly moving guide limit docking part 6 to adaptively lock the contacted bearing inner wall, so that the self-locked bearing workpiece rotates circumferentially along the lower end of the oil film laser detection component 2. This allows for uniform all-round oil film thickness measurement of the entire agricultural machinery bearing, avoiding the limitations of traditional point or segment detection, and realizing circumferential synchronous detection without dead angles, effectively ensuring the overall detection accuracy.

[0019] Example 2: Based on Example 1, an auxiliary positioning structure is also disclosed, the specific structure of which is as follows: An auxiliary positioning structure is provided on the outer side of the guide and limit docking part 6. The auxiliary positioning structure performs adaptive multi-category locking treatment on the inner wall of the contacting bearing workpiece. The auxiliary positioning structure is equipped with a first return spring 10, the lower end of which is connected to the upper end of the abutting nest 8, and the upper end of which is connected to the inner side of the guide limiting dock 6. A limiting external dock 12 is nested on the outer side of the guide limiting dock 6, and the inner end of the limiting external dock 12 corresponds to the outer side of the upper end of the abutting nest 8. The limiting external dock 12 is fixedly connected to the outer side of the abutting movable member 11, and the limiting external dock 12 and the outer side of the guide limiting dock 6 are connected by a spring. A second return spring 13 is fixedly connected to the outer side of the guide limiting dock 6, and the second return spring 13 is connected to the inner side of the movable nest reserved member 4. When the abutting nest 8 moves to contact the abutting movable member 11, the abutting movable member 11 is forced to limit the outer... The mating part 12 moves outward along the inner side of the guide limiting mating part 6. The abutting nesting part 8 forms a nested sliding structure with the inner side of the guide limiting mating part 6 through the first return spring 10. The guide limiting mating part 6 forms an elastic movable structure along the inner side of the movable nesting reserved part 4 through the second return spring 13. During the outward movement of the guide limiting mating part 6, the abutting nesting part 8 on its outer side will be pre-forced, thereby moving along the inner side of the guide limiting mating part 6. This allows the upper inclined surface structure of the guide limiting mating part 6 to press against the contacting movable part 11, thereby causing the abutting movable part 11 to be forced and drive the limiting outer mating part 12 to move outward synchronously. This allows for a secondary locking multi-directional positioning process on the inner wall of the bearing workpiece, further making the overall circumferential inspection process more stable and efficient, and avoiding arbitrary movement errors.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An agricultural machinery bearing oil film thickness measuring device based on optical laser detection, comprising a reserved substrate (1), wherein an oil film laser detection component (2) is installed on the upper end of the reserved substrate (1), and the film thickness is determined by using the interference effect generated by the reflection of light waves at the upper and lower interfaces of the oil film; Its features are: A drive motor component (3) is installed on the outside of the reserved base (1), and a movable nested reserved part (4) is nested on the upper end of the reserved base (1). The movable nested reserved part (4) is nested and connected with the output end of the drive motor component (3). The bearing workpiece to be tested is placed on the outside of the movable nested reserved part (4). A guide limiting docking part (6) is nested on the outside of the movable nested reserved part (4). A guide locking detection structure is provided between the movable nested reserved part (4) and the guide limiting docking part (6). The bearing workpiece is subjected to a precise measurement in all directions through the guide locking detection structure.

2. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 1, characterized in that: The guide locking detection structure is provided with a fixed reserved top block (5), and the fixed reserved top block (5) is fixedly connected to the outside of the output end of the drive motor component (3). The outer side of the movable nested reserved part (4) is provided with a reserved guide hole (7), and the guide limiting docking part (6) is nested and docked along the reserved guide hole (7).

3. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 2, characterized in that: The guide limiting docking part (6) has a reserved receiving groove (9) on its inner side, and the reserved receiving groove (9) has a through-hole connecting part (8), and the through-hole connecting part (8) and the guide limiting docking part (6) are connected to each other.

4. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 3, characterized in that: The active nested reserved part (4) forms a nested rotation structure along the upper outer side of the reserved base (1), and when the fixed reserved top block (5) rotates with the drive motor component (3) to contact the outer inclined surface of the guide limit docking part (6), the guide limit docking part (6) is subjected to force to form a sliding structure along the inner side of the active nested reserved part (4).

5. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 4, characterized in that: The abutting nesting part (8) at the lower end of the guide limiting docking part (6) is pre-forced and moves, and the guide limiting docking part (6) moves along the inner side of the guide limiting docking part (6) through the reserved receiving groove (9).

6. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 3, characterized in that: The outer side of the guide limiting docking part (6) is provided with an auxiliary positioning structure, which performs adaptive multi-category locking treatment on the inner wall of the contacting bearing workpiece through the auxiliary positioning structure. The auxiliary positioning structure is provided with a first reset spring (10), and the lower end of the first reset spring (10) is connected to the upper end of the abutting nest (8), and the upper end of the first reset spring (10) is connected to the inner side of the guide limiting docking member (6).

7. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 6, characterized in that: The outer side of the guide limiting docking part (6) is nested with a limiting external docking part (12), and the inner end of the limiting external docking part (12) corresponds to the outer upper end of the abutting nesting part (8). The outer side of the abutting movable part (11) is fixedly connected to the limiting external docking part (12), and the limiting external docking part (12) and the outer side of the guide limiting docking part (6) are connected by a spring. The outer side of the guide limiting docking part (6) is fixedly connected with a second reset spring (13), and the second reset spring (13) is abutted to the inner side of the movable nesting reserved part (4).

8. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 7, characterized in that: When the abutting nesting part (8) moves to contact the abutting moving part (11), the abutting moving part (11) is forced to drive the limiting external docking part (12) to move outward along the inner side of the guide limiting docking part (6).

9. The agricultural machinery bearing oil film thickness measuring device based on optical laser detection according to claim 8, characterized in that: The abutting nested part (8) forms a nested sliding structure with the inner side of the guide limiting docking part (6) through the first reset spring (10), and the guide limiting docking part (6) forms an elastic movable structure along the inner side of the movable nesting reserved part (4) through the second reset spring (13).

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