Durability test equipment for corn reel chain

Abstract

The utility model relates to the field of chain processing, and particularly discloses durability test equipment for a corn reel chain. The durability test equipment comprises a rack, an angle adjusting module and a driving module, the rack is rotatably and movably connected with a test bench, and the rotation center of the test bench is horizontally arranged; a driving chain wheel and a driven chain wheel are arranged on the test bed, and an operation interval is formed between the driving chain wheel and the driven chain wheel; the angle adjusting module comprises a rotation driving mechanism and an angle locking mechanism, and the rotation driving mechanism is used for driving the test bench to rotate relative to the rack; the driving module comprises a power unit, and the power unit is connected with the driving chain wheel and used for driving the driving chain wheel to rotate. The durability test equipment can well simulate the operation condition of the corn reel chain, more accurately obtain the wear test data of the corn reel chain, and provide a basis for the product design and acceptance of the corn reel chain.

Description

Technical Field

[0001] This utility model relates to the field of chain processing, specifically to a durability testing device for corn reeling chains. Background Technology

[0002] Agricultural modernization refers to establishing agriculture on the foundation of modern science, equipping it with modern science and technology and modern industry, managing it with modern economic science, creating a high-yield, high-quality, and low-consumption agricultural production system, and an agricultural ecosystem that rationally utilizes resources, protects the environment, and has high conversion efficiency. Among these, the modernization of production equipment is a crucial component of agricultural modernization, and harvesting equipment is one of the most common agricultural production equipment.

[0003] A corn harvester is the main equipment used for harvesting corn, and it has the advantages of high automation and high harvesting efficiency. The ear-picking mechanism is one of the core components of the corn harvester, used to orient and pull the corn stalks to break them. The ear-picking mechanism typically includes a plucking chain for orienting and gathering the corn stalks. Chinese invention patent application CN 105684639A discloses a floating plucking disc chain combined roller plate type corn ear-picking mechanism, which describes the structure and working method of the corn plucking chain.

[0004] Wear is the most common failure mode of corn reeling chains. Given the working principle of corn reeling chains, wear occurs in all components during operation. The primary wear occurs during the oscillation of adjacent chain links as the chain engages and disengages from the sprockets, causing wear on the bearing surfaces between the pins and sleeves. Wear increases the overall length of the chain, increasing the impact during starting and reversing. When wear accumulates to a certain extent, it can cause abnormal meshing between the chain and sprockets, leading to vibration, noise, and various other operational abnormalities.

[0005] Therefore, it is necessary to test the abrasion resistance of the reeling chain. Chinese invention patent CN 104764601B discloses a chain wear comparison testing machine, comprising two longitudinal sprocket mechanisms and one transverse sprocket mechanism. The two longitudinal sprocket mechanisms are used to mount the chain to be tested, and the transverse sprocket mechanism is used for transmission between the two longitudinal sprocket mechanisms. This chain wear comparison testing machine can test the abrasion resistance of the chain in a manner simulating actual operating conditions, and has the advantages of simple structure, ease of use, and reliable data.

[0006] Given the working method of corn harvesters, corn reel chains are typically set at a nearly horizontal angle and operate within a small range of horizontal and vertical inclination. However, the chain wear testing equipment mentioned above uses a vertically set chain, which differs from the setup of corn reel chains. This results in different simulated working conditions, making it difficult to accurately obtain wear test data for corn reel chains. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a durability testing device for corn reeling chains, which can effectively simulate the operating conditions of corn reeling chains and obtain more accurate wear test data for corn reeling chains, thus providing a basis for product design and acceptance of corn reeling chains.

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A durability testing device for corn reeling chains, comprising at least:

[0009] A frame is provided, on which a test bench is rotatably connected. The rotation center of the test bench is set horizontally. The test bench is provided with a drive sprocket and a driven sprocket. The axes of the drive sprocket and the driven sprocket are set perpendicular to the test bench, and a running range is formed between the drive sprocket and the driven sprocket.

[0010] An angle adjustment module, comprising a rotation drive mechanism and an angle locking mechanism, wherein the rotation drive mechanism is used to drive the test bench to rotate relative to the frame, and the angle locking mechanism is used to lock the installation angle of the test bench relative to the frame;

[0011] The drive module includes a power unit connected to the drive sprocket and used to drive the drive sprocket to rotate.

[0012] During durability testing, the test chain is mounted on the drive and driven sprockets. The installation angle of the test bench relative to the frame is adjusted using an angle adjustment module to achieve the installation and attitude adjustment of the test chain. The drive module drives the drive sprocket and the test chain to run. The wear performance of the test chain can be obtained by measuring the elongation of the test chain after a specific running time. This provides a basis for the product design and acceptance of corn reeling chains and has the advantages of convenient operation and realistic simulation of working conditions.

[0013] Preferably, the power unit includes a servo motor, which is mounted on a test bench, and a torque sensor is provided between the servo motor and the drive wheel.

[0014] Preferably, the test bench is also equipped with a bracket located within the operating range. The bracket can provide auxiliary support for the middle section of the test chain to accommodate the testing requirements of long chains.

[0015] Preferably, the rotary drive mechanism includes an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, with one end of the rotary drive mechanism hinged to the frame and the other end hinged to the test bench.

[0016] Preferably, the frame is provided with a limiting seat, and the limiting seat is provided with a guide groove, which is arc-shaped around the rotation center line of the test bench; the angle locking mechanism includes a locking bolt disposed between the limiting seat and the test bench, and the locking bolt is located in the guide groove.

[0017] The combination of the rotary drive mechanism, the limit seat, and the angle locking mechanism enables convenient and reliable adjustment of the installation angle of the test bench.

[0018] Preferably, the system also includes a spacing adjustment module, which includes a slide table and a translation drive mechanism. The slide table is slidably mounted on the test bench, and the driven wheel is mounted on the slide table. The translation drive mechanism is mounted on the test bench and is used to drive the slide table to translate.

[0019] The position of the driven wheel relative to the driving wheel can be adjusted by the spacing adjustment module, thereby adjusting the length of the test chain to suit the situation.

[0020] Preferably, the system also includes a tensioning mechanism, which includes a tensioning slider slidably mounted on a slide table, a driven wheel mounted on the tensioning slider, and a tensioning elastic element provided between the tensioning slider and the slide table.

[0021] The tensioning mechanism can provide a certain preload to the test chain installed between the driving and driven wheels, simulating the loading of the test chain and more realistically simulating the operating conditions of the test chain to obtain more accurate test data.

[0022] Preferably, a tension sensor is provided between the tensioning slider and the tensioning elastic element.

[0023] Preferably, the system also includes a displacement detection mechanism, which includes a displacement sensor disposed on the slide table and used to detect the displacement of the tensioning slider relative to the slide table.

[0024] By detecting the displacement of the tensioning slider relative to the slide table, the elongation of the test chain can be indirectly measured, enabling real-time assessment of the wear degree of the test chain. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the durability testing equipment used for corn reeling chains in this embodiment;

[0026] Figure 2This is a schematic diagram of the structure of the durability testing equipment for corn reeling chains in this embodiment, with part of the frame removed.

[0027] Figure 3 This is a side view of the durability testing equipment for corn reeling chains in this embodiment, with the test bench in a horizontal position.

[0028] Figure 4 This is a side view of the durability testing equipment for corn reeling chains in this embodiment. The test platform is tilted downwards at this time.

[0029] Figure 5 This is a top view of the durability testing equipment used for corn reeling chains in this embodiment;

[0030] Figure 6 This is a schematic diagram of the structure of the spacing adjustment module, tensioning mechanism, and displacement detection mechanism working together in the durability testing equipment for corn reeling chains in this embodiment;

[0031] Figure 7 This is a side view showing the coordination of the spacing adjustment module, tensioning mechanism, and displacement detection mechanism in the durability testing equipment for corn reeling chains in this embodiment;

[0032] Figure 8 This is a top view showing the coordination of the spacing adjustment module, tensioning mechanism, and displacement detection mechanism in the durability testing equipment for corn reeling chains in this embodiment. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0034] like Figures 1-5 As shown, a durability testing device for corn reeling chains includes a frame 1, an angle adjustment module 3, and a drive module 2. A test platform 4 is rotatably connected to the frame 1, with the rotation center of the test platform 4 horizontally positioned. The test platform 4 is equipped with a driving sprocket 41 and a driven sprocket 42, the axes of which are perpendicular to the test platform 4, forming a running zone between them. The test platform 4 also includes a bracket 43 located within the running zone. The bracket 43 provides auxiliary support and lifting for the middle portion of the test chain 5, accommodating testing requirements for long chains.

[0035] like Figures 1-5As shown, the angle adjustment module 3 includes a rotation drive mechanism 31 and an angle locking mechanism 32. The rotation drive mechanism 31 is used to drive the test bench 4 to rotate relative to the frame 1, and the angle locking mechanism 32 is used to lock the installation angle of the test bench 4 relative to the frame 1.

[0036] Specifically, such as Figures 1-5 As shown, the rotary drive mechanism 31 includes an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. One end of the rotary drive mechanism 31 is hinged to the frame 1, and the other end is hinged to the test bench 4. The frame 1 is provided with a limiting seat, and the limiting seat has a guide groove 33, which is arc-shaped around the rotation center line of the test bench 4. The angle locking mechanism 32 includes a locking bolt disposed between the limiting seat and the test bench 4, and the locking bolt is located within the guide groove 33. The cooperation of the rotary drive mechanism 31, the limiting seat, and the angle locking mechanism 32 enables convenient and reliable adjustment of the installation angle of the test bench 4.

[0037] like Figures 1-5 As shown, the drive module 2 includes a power unit connected to the drive sprocket 41 and used to drive the drive sprocket 41 to rotate. The power unit includes a servo motor, which is mounted on the test bench 4, and a torque sensor is provided between the servo motor and the drive sprocket.

[0038] During durability testing, the test chain 5 is mounted on the drive sprocket 41 and the driven sprocket 42. The installation angle of the test platform 4 relative to the frame 1 is adjusted by the angle adjustment module 3 to achieve the installation and attitude adjustment of the test chain 5. The drive module 2 drives the drive sprocket 41 and the test chain 5 to run. The wear performance of the test chain 5 can be obtained by measuring the elongation of the test chain 5 after a specific running time. This provides a basis for the product design and acceptance of corn reeling chains and has the advantages of convenient operation and realistic working condition simulation.

[0039] Furthermore, such as Figures 6-8 As shown, the system also includes a spacing adjustment module, which comprises a slide table 446 and a translation drive mechanism 444. The slide table 446 is slidably mounted on the test bench 4, and the driven wheel is mounted on the slide table 446. The translation drive mechanism 444 is mounted on the test bench 4 and is used to drive the slide table 446 to translate. The spacing adjustment module can adjust the position of the driven wheel relative to the driving wheel, thereby adjusting the length of the test chain 5 to suit different conditions.

[0040] Furthermore, such as Figures 6-8As shown, the system also includes a tensioning mechanism, which comprises a tensioning slider 441 slidably mounted on a slide table 446. The driven wheel is mounted on the tensioning slider 441, and a tensioning elastic element 443 is provided between the tensioning slider 441 and the slide table 446. The tensioning mechanism provides a certain preload to the test chain 5 installed between the driving wheel and the driven wheel, simulating the loading of the test chain 5 and more realistically simulating its operating conditions to obtain more accurate test data. A tension sensor 442 is provided between the tensioning slider 441 and the tensioning elastic element 443.

[0041] Furthermore, such as Figures 6-8 As shown, it also includes a displacement detection mechanism 445, which includes a displacement sensor mounted on a slide table 446 and used to detect the displacement of the tension slider 441 relative to the slide table 446. By detecting the displacement of the tension slider 441 relative to the slide table 446, the elongation of the test chain 5 can be indirectly measured, enabling real-time assessment of the wear degree of the test chain 5.

[0042] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A durability testing device for corn reeling chains, characterized in that, At least including: A frame is provided, on which a test bench is rotatably connected. The rotation center of the test bench is set horizontally. The test bench is provided with a drive sprocket and a driven sprocket. The axes of the drive sprocket and the driven sprocket are set perpendicular to the test bench, and a running range is formed between the drive sprocket and the driven sprocket. An angle adjustment module, comprising a rotation drive mechanism and an angle locking mechanism, wherein the rotation drive mechanism is used to drive the test bench to rotate relative to the frame, and the angle locking mechanism is used to lock the installation angle of the test bench relative to the frame; The drive module includes a power unit connected to the drive sprocket and used to drive the drive sprocket to rotate.

2. The durability testing equipment according to claim 1, characterized in that: The power unit includes a servo motor, which is mounted on a test bench, and a torque sensor is provided between the servo motor and the drive wheel.

3. The durability testing equipment according to claim 1, characterized in that: The test bench is also equipped with a bracket, which is located within the operating range.

4. The durability testing equipment according to claim 1, characterized in that: The rotary drive mechanism includes an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. One end of the rotary drive mechanism is hinged to the frame, and the other end is hinged to the test bench.

5. The durability testing equipment according to claim 1, characterized in that: The frame is provided with a limiting seat, and the limiting seat is provided with a guide groove, which is arc-shaped around the rotation center line of the test bench; the angle locking mechanism includes a locking bolt disposed between the limiting seat and the test bench, and the locking bolt is located in the guide groove.

6. The durability testing equipment according to any one of claims 1-5, characterized in that: It also includes a spacing adjustment module, which includes a slide table and a translation drive mechanism. The slide table is slidably mounted on the test bench, and the driven wheel is mounted on the slide table. The translation drive mechanism is mounted on the test bench and is used to drive the slide table to translate.

7. The durability testing equipment according to claim 6, characterized in that: It also includes a tensioning mechanism, which includes a tensioning slider that is slidably mounted on a slide table, a driven wheel that is mounted on the tensioning slider, and a tensioning elastic element that is provided between the tensioning slider and the slide table.

8. The durability testing equipment according to claim 7, characterized in that: A tension sensor is provided between the tensioning slider and the tensioning elastic element.

9. The durability testing equipment according to claim 7, characterized in that: It also includes a displacement detection mechanism, which includes a displacement sensor that is mounted on the slide and is used to detect the displacement of the tensioning slider relative to the slide.

Images