Large harvester granary assembly on-line detection device

Abstract

The utility model relates to a large-scale harvester granary assembly on-line detection device, which comprises a hydraulic station, a torque detection part, a temperature measurement part, an elbow detection oil cylinder and a granary cover detection oil cylinder, the torque detection part comprises a servo motor, a transmission shaft and a transmission chuck, the servo motor is connected with the transmission shaft through a speed reducer, the transmission shaft is provided with a torque sensor, and the transmission chuck is connected with the transmission shaft. The end part of the transmission shaft is connected with a transmission chuck which is used for being connected with a chain wheel of a to-be-detected granary; the temperature measuring part is used for detecting the temperature of a plurality of temperature measuring points on the to-be-measured granary; the elbow detection oil cylinder is used for driving an unloading barrel elbow of the to-be-detected granary to rotate, and the granary cover detection oil cylinder is used for driving an auxiliary box cover of the to-be-detected granary to open and close. When the granary is not installed on the whole machine, the detection device is used for detecting the granary, so that the quality problems of clamping stagnation, abnormal sound and the like of a transmission system of a bottom auger of a grain box and a grain unloading barrel elbow during test run of the whole machine are solved, and the quality and potential safety hazards in the test run process of the whole machine are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of harvester grain bin assembly, in particular to an online detection device for large-scale harvester grain bin assembly. Background Art

[0002] The grain silo of a large harvester has a complex structure. The grain unloading drum transmission system and the grain unloading drum hydraulic rotation system are compact and difficult to assemble and adjust. The automatic opening of the grain silo auxiliary box is greatly affected by the components, and the switch is prone to jamming. Each grain silo is manually assembled, and manual rotation of the elbow is not effective. The automatic opening of the auxiliary box and the grain unloading drum transmission system can only rely on the components and the workers' adjustment level, and it is impossible to identify potential problems. When the grain silo is installed on the whole machine, the unloading auger often makes abnormal noises, the grain unloading drum is stuck, and the auxiliary box does not open and close smoothly during the test run. The only option is to repair the whole machine, which requires disassembling the grain silo and the grain unloading transmission system, which is time-consuming and labor-intensive. In addition, the grain tank is located at the top of the whole machine, and employees need to climb the whole machine for repairs, which is difficult to operate and poses a safety hazard. Utility Model Content

[0003] The utility model aims to solve the existing technical problems and provides an online detection device for granary assembly of a large harvester.

[0004] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: An online detection device for assembling a grain bin for a large harvester, comprising a hydraulic station, a torque detection component, a temperature measuring component, an elbow detection cylinder and a grain bin cover detection cylinder, the torque detection component comprising a servo motor, a transmission shaft and a transmission chuck, the servo motor being connected to the transmission shaft via a reducer, a torque sensor being provided on the transmission shaft, the end of the transmission shaft being connected to the transmission chuck, the transmission chuck being used to be connected to the sprocket of the grain bin to be tested; the temperature measuring component being used to detect the temperatures of multiple temperature measuring points on the grain bin to be tested; the elbow detection cylinder being used to be connected to the elbow of the grain unloading drum of the grain bin to be tested, the grain bin cover detection cylinder being used to drive the auxiliary box cover of the grain bin to be tested to open, the elbow detection cylinder and the grain bin cover detection cylinder being connected to the hydraulic station via oil pipes respectively, and a pressure sensor being provided on the oil pipes.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows:

[0006] Preferably, it also includes a base, which is a movable base, on which the hydraulic station, the torque detection component, and the temperature measurement component are installed, and the elbow detection cylinder and the granary cover detection cylinder are detachably placed on the base.

[0007] Preferably, an oil cylinder bracket and an oil pipe bracket are provided on the base, the oil cylinder bracket is used to place the elbow detection oil cylinder and the granary cover detection oil cylinder, and the oil pipe bracket is used to place the oil pipe.

[0008] Preferably, the torque detection component also includes a lifting motor, a bracket 1 and a support plate, the lifting motor is installed on the base, the output end of the lifting motor is connected to the bracket 1, the bracket 1 is connected to the support plate, and the servo motor, the transmission shaft and the transmission chuck are installed on the support plate.

[0009] Preferably, the torque detection component further includes a guide shaft, the guide shaft is mounted on the base, and the support plate is slidably mounted on the guide shaft.

[0010] Preferably, the temperature measuring component includes a thermal imager, and the distance between the thermal imager and the granary to be measured.

[0011] Preferably, the temperature measuring component further includes a second bracket and an infrared thermometer, and the infrared thermometer is installed on the second bracket.

[0012] Preferably, the second bracket is a retractable bracket.

[0013] Preferably, a speed sensor is installed on the transmission shaft

[0014] Preferably, the temperature measuring points include bearing temperature measuring points and elbow temperature measuring points.

[0015] The beneficial effects of the present invention are as follows: by connecting the torque detection component with the sprocket of the grain silo to be tested, and by detecting the torque value through the torque sensor, the transmission system of the grain tank bottom auger of the grain silo to be tested can be tested; the elbow detection cylinder drives the grain unloading drum elbow to rotate, and the grain silo cover detection cylinder drives the auxiliary box cover of the grain silo to be tested to open and close, and the pressure sensor on the oil pipe detects whether the pressure value in the driving oil circuit is within the set range, thereby detecting whether there is a problem of stagnation in the rotation of the grain unloading drum elbow and the opening and closing of the auxiliary box cover; the temperature measuring component measures the temperature of multiple temperature measuring points in the grain silo to be tested, and detects whether the temperature rise is within the specified range, thereby detecting the running-in status of the grain silo to be tested. When the grain silo is not installed on the complete machine, the grain silo can be tested by the detection device, which solves the quality problems such as stagnation and abnormal noise of the transmission system of the grain tank bottom auger and the grain unloading drum elbow during the complete machine test. It can accurately detect the temperature rise of all bearings in the grain silo to be tested, eliminate quality and safety hazards during the complete machine test, reduce costs, and improve operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the online detection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the torque detection component of the present invention;

[0018] Figure 3 It is a schematic diagram of the present utility model when in use;

[0019] Figure 4 This is a schematic diagram of the main view of the elbow detection cylinder of the utility model when it is connected to the elbow of the grain unloading drum;

[0020] Figure 5 This is a top view schematic diagram of the elbow detection cylinder of the utility model being connected to the elbow of the grain unloading drum.

[0021] Figure numerals: 100, hydraulic station; 200, control component; 300, torque detection component; 301, servo motor; 302, reducer; 303, transmission shaft; 304, torque sensor; 305, transmission chuck; 306, lifting motor; 307, bracket one; 308, support plate; 309, guide shaft; 400, temperature measuring component; 401, bracket two; 402, infrared thermometer; 403, thermal imager; 500, elbow detection cylinder; 600, granary cover detection cylinder; 700, granary to be tested; 701, elbow temperature measuring point; 702, support seat; 703, auxiliary box cover; 704, connecting rod; 705, rotating shaft; 707, grain unloading barrel elbow; 800, base; 801, guardrail; 802, cylinder bracket; 803, oil pipe bracket. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] like Figures 1 to 5As shown, the utility model discloses an online detection device for the assembly of a grain bin for a large harvester, including a hydraulic station 100, a control component 200, a torque detection component 300, a temperature measuring component 400, an elbow detection cylinder 500 and a grain bin cover detection cylinder 600. The torque detection component 300 includes a servo motor 301, a transmission shaft 303 and a transmission chuck 305. The servo motor 301 is connected to the transmission shaft 303 through a reducer 302. The transmission shaft 303 is provided with a torque sensor 304 and a speed sensor. The end of the transmission shaft 303 is connected to the transmission chuck 305 through a universal joint. The transmission chuck 305 is used to connect to the sprocket of the grain bin 700 to be tested through bolts or screws. The universal joint structure can reduce the difficulty of connecting the transmission chuck 305 and the sprocket, thereby improving the detection accuracy. Convenience of operation; the temperature measuring component 400 is used to detect the temperature of multiple temperature measuring points on the grain silo 700 to be tested, and the temperature measuring points include multiple bearing temperature measuring points and elbow temperature measuring points 701; the elbow detection cylinder 500 is used to drive the grain unloading drum elbow of the grain silo 700 to be tested to rotate, and the grain silo cover detection cylinder 600 drives the auxiliary box cover 703 of the grain silo 700 to be tested to open and close. The elbow detection cylinder 500 and the grain silo cover detection cylinder 600 are respectively connected to the hydraulic station 100 through oil pipes, and a pressure sensor is provided on the oil pipe. The pressure sensor is used to detect whether the pressure of the driving oil circuit is within a preset range, thereby realizing the detection of the grain unloading drum elbow and the auxiliary box cover 703, and detecting whether the grain unloading drum elbow 707 has an operation jam problem and whether the auxiliary box cover 703 has a problem of poor opening and closing.

[0024] The large-scale harvester grain silo assembly online detection device also includes a base 800, which is a movable base and can stop at any position. The hydraulic station 100, the torque detection component 300, and the temperature measuring component 400 are installed on the base 800. The elbow detection cylinder 500 and the grain silo cover detection cylinder 600 are detachably placed on the base 800, so that the detection device can be moved to different grain silos 700 to be tested for testing, thereby improving the flexibility and convenience of use and facilitating storage.

[0025] Furthermore, a guardrail 801 is provided on the base 800 to protect the hydraulic station 100 and other components to avoid collisions, and can also serve as a handrail to push the base 800 to move.

[0026] Furthermore, a protective shell is provided on the outer side of the torque detection component 300 to protect the torque detection component 300 from foreign objects, thereby ensuring that the torque detection component 300 can operate normally.

[0027] In this embodiment, a cylinder bracket 802 and a tubing bracket 803 are provided on the base 800. The cylinder bracket 802 is used to position the elbow detection cylinder 500 and the silo cover detection cylinder 600, while the tubing bracket 803 is used to position the tubing. The cylinder bracket 802 is equipped with four V-shaped blocks, with two V-blocks forming a group. When the detection device is not in operation, the elbow detection cylinder 500 and the silo cover detection cylinder 600 are placed on the V-shaped blocks, respectively. This simple structure allows for easy access and placement, reducing space usage. Placing the tubing on the tubing bracket 803 reduces the tubing footprint, facilitates storage, and improves ease of use.

[0028] The torque detection component 300 also includes a lifting motor 306, a bracket 307, and a support plate 308. The lifting motor 306 is mounted on the base 800. The output end of the lifting motor 306 is connected to the bracket 307, which is in turn connected to the support plate 308. The servo motor 301, the transmission shaft 303, and the transmission chuck 305 are mounted on the support plate 308. The height of the transmission chuck 305 can be adjusted by the lifting motor 306 to meet the testing requirements of different models of grain silos 700 to be tested, improving versatility and reducing costs.

[0029] Furthermore, the torque detection component 300 includes a guide shaft 309 mounted on the base 800. The support plate 308 is slidably mounted on the guide shaft 309. This increases the stability of the support plate 308 and its components, reduces shaking, and ensures smooth lifting and lowering. In this embodiment, four guide shafts 309 are provided, located at the four corners of the support plate 308, further enhancing the smooth movement of the support plate 308.

[0030] In this embodiment, temperature measurement component 400 specifically includes a thermal imager 403. The distance between thermal imager 403 and the granary 700 to be tested is less than or equal to 1500 mm, ensuring measurement accuracy. Thermal imager 403 features large-area, long-distance temperature measurement and simultaneous detection of multiple targets. It is used to measure the temperature of multiple bearings in the transmission system of the granary 700, such as the gearbox bearings and the granary intermediate shaft transmission bearings. The measurement range is 2000 square millimeters.

[0031] Temperature measuring component 400 also includes bracket 2 401 and infrared thermometer 402, which is mounted on bracket 2 401. Infrared thermometer 402 is capable of accurately measuring the temperature of a single location, such as the bearing at elbow temperature measurement point 701. This allows for accurate temperature measurement of the grain unloading hopper elbow 707, further detecting any signs of sticking, and enabling timely adjustments to ensure proper operation.

[0032] Furthermore, the second bracket 401 is a retractable bracket. By adjusting the height of the second bracket 401, temperature measurement points at different positions can be detected, further improving versatility and flexibility of use.

[0033] The use process of this utility model is as follows:

[0034] Manually connect one end of the elbow detection cylinder 500 to the support seat 702 of the grain silo 700 to be tested, connect the output end of the elbow detection cylinder 500 to the grain unloading drum elbow 707 of the grain silo 700 to be tested, and install the grain silo cover detection cylinder 600 on the side wall of the grain silo 700 to be tested. The grain silo cover detection cylinder 600 is connected to the rotating shaft 705 through the connecting rod 704. One end of the rotating shaft 705 extends into the grain silo 700 to be tested and is connected to the auxiliary box cover 703. If the rotating shaft 705 rotates, it drives the auxiliary box cover 703 to open and close; manually connect the transmission chuck 305 of the torque detection component 300 to the sprocket of the grain silo 700 to be tested; and adjust the temperature measuring component 400 to the specified position.

[0035] Start the program, the control component 200 controls the motor to start, driving the hydraulic pump of the hydraulic station 100 to extract hydraulic oil, which enters the elbow detection cylinder 500 and the grain silo cover detection cylinder 600 respectively through the electromagnetic reversing valve and the oil pipe. Among them, the elbow detection cylinder 500 drives the grain unloading barrel elbow 707 to rotate, and the grain silo cover detection cylinder 600 drives the auxiliary box cover 703 to open and close. Because the drive oil circuits of the elbow detection cylinder 500 and the grain bin cover detection cylinder 600 are equipped with pressure sensors, when the pressure in the drive oil circuit is less than a preset value, it indicates that the grain unloading drum elbow 707 rotates smoothly, the auxiliary box cover 703 can open and close normally, and the elbow detection cylinder 500 and the grain bin cover detection cylinder 600 are functioning normally. When the oil circuit pressure exceeds the preset value, it indicates that the grain unloading drum elbow 707 is stuck or the auxiliary box cover 703 cannot open and close normally. At this time, the elbow detection cylinder 500 and the grain bin cover detection cylinder 600 stop and alarm, allowing the operator to promptly check the grain unloading drum elbow 707 and the auxiliary box cover 703 to ensure the normal use of the harvester grain bin. The preset value in this embodiment is 20 MPa.

[0036] The control component 200 controls the servo motor 301 to start, and the servo motor 301 drives the sprocket of the granary 700 to be tested to rotate through the transmission chuck 305. The no-load torque during rotation is detected in real time through the speed sensor and the torque sensor 304: the torque is output from the 10th second of the uniform speed stage, which is the average value of 0-10s, and the average value of 1-11s is output at the 11th second, and so on. If the torque average value exceeds the torque standard value, it means that the unloading auger transmission system of the granary 700 to be tested is abnormal, and the detection device immediately alarms and stops quickly. Among them, the torque standard value can be adjusted accordingly according to the model of the granary 700 to be tested; the torque error range output by the torque sensor 304 shall not exceed 5% to ensure the accuracy of the result.

[0037] Thermal imager 403 of temperature measurement unit 400 measures the temperature of multiple bearing points within the transmission system of granary 700. Infrared thermometer 402 measures the temperature of the bearings at elbow point 701, further ensuring smooth rotation of the grain unloading hopper elbow. During the run-in period of granary 700, if the measured temperature difference exceeds the specified temperature rise value, it indicates an abnormality in the run-in process, and the online detection device immediately stops operation.

[0038] The detection device can display the detection data and change curves such as temperature, torque and oil pressure in real time on the display screen of the control component 200, automatically determine whether the detection is qualified, eliminate quality and safety hazards during the whole machine test run, and have a good effect on improving the quality, efficiency and safety of the granary 700 to be tested.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large-scale harvester grain bin assembly online detection device, characterized in that: The invention comprises a hydraulic station (100), a torque detection component (300), a temperature measurement component (400), an elbow detection oil cylinder (500) and a granary cover detection oil cylinder (600), wherein the torque detection component (300) comprises a servo motor (301), a transmission shaft (303) and a transmission chuck (305), wherein the servo motor (301) is connected to the transmission shaft (303) via a speed reducer (302), a torque sensor (304) is provided on the transmission shaft (303), and the end of the transmission shaft (303) is connected to the transmission chuck (305), and the transmission chuck ( 305) is used to connect with the sprocket of the grain silo to be tested (700); the temperature measuring component (400) is used to detect the temperature of multiple temperature measuring points on the grain silo to be tested (700); the elbow detection cylinder (500) is used to drive the grain unloading drum elbow (707) of the grain silo to be tested (700) to rotate, and the grain silo cover detection cylinder (600) is used to drive the auxiliary box cover (703) of the grain silo to be tested (700) to open and close. The elbow detection cylinder (500) and the grain silo cover detection cylinder (600) are respectively connected to the hydraulic station (100) through oil pipes, and pressure sensors are provided on the oil pipes.

2. The large-scale harvester grain bin assembly online detection device according to claim 1, characterized in that: The device further comprises a base (800), wherein the base (800) is a movable base, the hydraulic station (100), the torque detection component (300), and the temperature measurement component (400) are mounted on the base (800), and the elbow detection cylinder (500) and the granary cover detection cylinder (600) are detachably placed on the base (800).

3. The large-scale harvester grain bin assembly online detection device according to claim 2, characterized in that: An oil cylinder support (802) and an oil pipe support (803) are provided on the base (800). The oil cylinder support (802) is used to place the elbow detection oil cylinder (500) and the granary cover detection oil cylinder (600), and the oil pipe support (803) is used to place the oil pipe.

4. The large-scale harvester grain bin assembly online detection device according to claim 2, characterized in that: The torque detection component (300) further includes a lifting motor (306), a bracket (307) and a support plate (308), wherein the lifting motor (306) is mounted on the base (800), an output end of the lifting motor (306) is connected to the bracket (307), the bracket (307) is connected to the support plate (308), and the servo motor (301), the transmission shaft (303) and the transmission chuck (305) are mounted on the support plate (308).

5. The large-scale harvester grain bin assembly online detection device according to claim 4, characterized in that: The torque detection component (300) further includes a guide shaft (309), the guide shaft (309) is mounted on the base (800), and the support plate (308) is slidably sleeved on the guide shaft (309).

6. The large-scale harvester grain bin assembly online detection device according to claim 1 or 2, characterized in that: The temperature measuring component (400) comprises a thermal imager (403), and the distance between the thermal imager (403) and the granary (700) to be measured is ≤1500 mm.

7. The large-scale harvester grain bin assembly online detection device according to claim 6, characterized in that: The temperature measuring component (400) further comprises a second bracket (401) and an infrared thermometer (402), wherein the infrared thermometer (402) is mounted on the second bracket (401).

8. The large-scale harvester grain bin assembly online detection device according to claim 7, characterized in that: The second bracket (401) is a retractable bracket.

9. The large-scale harvester grain bin assembly online detection device according to claim 1, characterized in that: A rotation speed sensor is installed on the transmission shaft (303).

10. The large-scale harvester grain bin assembly online detection device according to claim 1, characterized in that: The temperature measuring points include a bearing temperature measuring point and an elbow temperature measuring point (701).

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