CN215573098U - Fertilizer throwing machine fault automatic detection system and fertilizer throwing machine - Google Patents
Fertilizer throwing machine fault automatic detection system and fertilizer throwing machine Download PDFInfo
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- CN215573098U CN215573098U CN202121736241.4U CN202121736241U CN215573098U CN 215573098 U CN215573098 U CN 215573098U CN 202121736241 U CN202121736241 U CN 202121736241U CN 215573098 U CN215573098 U CN 215573098U
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Abstract
The utility model relates to the technical field of agricultural machinery, and provides an automatic fault detection system for a fertilizer throwing machine and the fertilizer throwing machine, wherein the system comprises a central controller, and the central controller is coupled with one or more of a pressure sensor, an auger rotating speed sensor, a PTO rotating speed sensor, a tire pressure detection device and a wheel bearing temperature measurement device; the fertilizer spreader applies the automatic fault detection system. By the method, the operating parameters of each executing component of the fertilizer spreader can be monitored in time, so that the operating state of the fertilizer spreader can be known in time, a subsequent central controller or maintenance personnel can conveniently further judge and analyze the operating parameters, and the method is favorable for realizing the application of the fertilizer spreader to the unmanned farm based on the detected and monitored data.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to an automatic fault detection system for a fertilizer throwing machine and the fertilizer throwing machine.
Background
The existing fertilizer throwing machines are all fertilizer throwing machines controlled by people, after a fault occurs, the fertilizer throwing machines need to contact corresponding maintenance personnel to check related parts and make fault judgment, and operation drivers often cannot judge fault positions and fault reasons due to the fact that the operation drivers are not professional maintenance personnel. Therefore, the existing fertilizer spreader does not depend on maintenance personnel too much in fault detection and fault maintenance, and if the operating parameters of the fertilizer spreader during working can be monitored timely and automatically, the maintenance personnel can be facilitated to maintain, and the application and popularization of the fertilizer spreader in unmanned farms are promoted.
Disclosure of Invention
The utility model aims to provide a fertilizer spreader fault automatic detection system and a fertilizer spreader, which can monitor the operating parameters of each executing component of the fertilizer spreader in time, further know the operating state of the fertilizer spreader in time, facilitate subsequent central controllers or maintenance personnel to further judge and analyze the operating parameters, and facilitate the application of the fertilizer spreader to unmanned farms based on the detected and monitored data.
Based on the above, the utility model provides an automatic fault detection system for a fertilizer spreader, which comprises a central controller, wherein the central controller is coupled with one or more of a pressure sensor, an auger rotation speed sensor, a PTO rotation speed sensor, a tire pressure detection device and a wheel bearing temperature measurement device;
the pressure sensor is used for detecting the resistance of the fertilizer pushing plate, the auger rotating speed sensor is used for detecting the rotating speed of the auger, the PTO rotating speed sensor is used for detecting the PTO rotating speed of the tractor, the tire pressure detecting device is used for detecting the air pressure in the tire, and the wheel bearing temperature measuring device is used for detecting the temperature of the bearing in the axle.
The automatic fertilizer spreader fault detection system further comprises a video monitoring device coupled with the central controller and used for shooting real-time videos in the fertilizer spreading operation process.
The automatic fertilizer spreader fault detection system further comprises a weighing sensor coupled with the central controller and used for detecting the weight of fertilizer in the fertilizer box.
The automatic fertilizer spreader fault detection system further comprises a running speed sensor coupled with the central controller and used for detecting the running speed of the tractor.
The automatic fertilizer spreader fault detection system further comprises a displacement sensor coupled with the central controller and used for detecting displacement data of the fertilizer pushing plate.
The automatic fertilizer spreader fault detection system further comprises a proximity switch coupled with the central controller and used for detecting the position information of the fertilizer door.
The automatic fertilizer spreader fault detection system further comprises a communication module coupled with the central controller and used for sending the operation data of the fertilizer spreader to the operation and maintenance workstation.
The embodiment of the utility model has the following beneficial effects:
according to the automatic detection system for the fertilizer spreader fault in the implementation, the operation state of the fertilizer spreader is monitored by detecting the operation parameters of each execution component of the fertilizer spreader, and meanwhile, a subsequent central controller or maintenance personnel can conveniently further judge and analyze the operation parameters, so that the fertilizer spreader can be favorably applied to an unmanned farm based on the data detected and monitored.
The utility model correspondingly provides a fertilizer spreader, which comprises the automatic fault detection system for the fertilizer spreader;
the fertilizer throwing machine also comprises a fertilizer throwing mechanism and a tractor connected with the fertilizer throwing mechanism to pull the fertilizer throwing mechanism, wherein the fertilizer throwing mechanism comprises a vehicle body, a fertilizer box, a fertilizer pushing mechanism, a fertilizer throwing area and a fertilizer throwing auger set;
the tractor with the body coupling, fertile case is located on the automobile body, push away fertile mechanism and locate on the fertile case, it locates to throw fertile district the fertile case afterbody, be equipped with on the fertile case and be used for supplying the fertilizer of fertile incasement to get into the fertilizer outlet of throwing fertile district, it locates to throw fertile screw feeder group throw fertile district afterbody in order to throw the fertilizer in fertile district out.
According to the fertilizer spreader, the fertilizer outlet is provided with the openable fertilizer door, and the fertilizer door is connected with the fertilizer door driving device for driving the fertilizer door to open and close.
According to the fertilizer spreader, the fertilizer pushing mechanism comprises the fertilizer pushing plate and the fertilizer pushing driving device connected with the fertilizer pushing plate.
According to the fertilizer spreader, the bottom of the vehicle body is provided with the vehicle axle, and the vehicle wheels are arranged on the vehicle axle.
The fertilizer spreader also comprises a PTO device and a power input and transmission system connected with the PTO device.
The embodiment of the utility model discloses an automatic fault detection system for a fertilizer spreader applied to the fertilizer spreader. Therefore, compared with the prior art, the automatic fertilizer spreader fault detection system has the corresponding technical effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a system block diagram of an automatic detection system for a fertilizer spreader fault according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a fertilizer spreader according to an embodiment of the present invention.
Fig. 3 is a top view of the fertilizer spreading mechanism of fig. 2.
Fig. 4 is a right side view of the fertilizer spreading mechanism of fig. 2.
Fig. 5 is a schematic view of the assembled structure of the fertilizer door and the fertilizer outlet in fig. 2.
Fig. 6 is a front view of the fertilizer spreading mechanism of fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an automatic fertilizer spreader fault detection system according to an embodiment of the present invention includes a central controller, to which one or more of a pressure sensor 1, an auger speed sensor 2, a PTO speed sensor 3, a tire pressure detection device 4, and a wheel bearing temperature measurement device 5 are coupled.
Pressure sensor 1 is used for detecting the resistance that pushes away the fertile board, auger speed sensor 2 for detect the rotational speed of auger, PTO speed sensor 3 is used for detecting the PTO rotational speed of tractor, tire pressure detection device 4 is used for detecting the atmospheric pressure in the tire, wheel bearing temperature measuring device 5 is used for detecting the temperature of bearing in the axle.
Further, the automatic fertilizer spreader fault detection system further comprises a video monitoring device 6 coupled with the central controller and used for shooting real-time videos in the fertilizer spreading operation process.
The automatic fault detection system for the fertilizer spreader further comprises a weighing sensor 7 coupled with the central controller and used for detecting the weight of fertilizer in the fertilizer box.
The automatic detection system for the failure of the fertilizer spreader also comprises a running speed sensor 8 coupled with the central controller and used for detecting the running speed of the tractor.
The automatic fertilizer spreader fault detection system further comprises a displacement sensor 9 coupled with the central controller and used for detecting displacement data of the fertilizer pushing plate.
The automatic detection system for the fertilizer spreader fault further comprises a proximity switch 10 coupled with the central controller and used for detecting the position information of the fertilizer door.
The automatic fertilizer spreader fault detection system further comprises a communication module 11 coupled with the central controller and used for sending the operation data of the fertilizer spreader to the operation and maintenance workstation. The fertilizer throwing machine and the operation and maintenance workstation realize wireless communication through the communication module 11, and the communication mode can be one or more of 2G, 3G, 4G and 5G.
According to the automatic detection system for the fertilizer spreader fault in the implementation, the operation state of the fertilizer spreader is monitored by detecting the operation parameters of each execution component of the fertilizer spreader, and meanwhile, a subsequent central controller or maintenance personnel can conveniently further judge and analyze the operation parameters, so that the fertilizer spreader can be favorably applied to an unmanned farm based on the data detected and monitored.
Based on the detected operating parameters, an embodiment of the utility model further provides an automatic fault detection method for the fertilizer spreader, and the automatic fault detection method for the fertilizer spreader comprises the following steps:
acquiring a resistance value of the fertilizer pushing plate, controlling an overflow valve of a fertilizer pushing hydraulic system to discharge oil when the resistance value is higher than a second preset resistance value, and sending a fault signal of fertilizer pushing overload; and/or
And acquiring the PTO rotating speed of the tractor and the rotating speed of the fertilizer throwing auger set, and sending a fault signal of the damage of the fertilizer throwing mechanism when the rotating speed of the fertilizer throwing auger set is not matched with the PTO rotating speed.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: when the obtained resistance value is higher than a first preset resistance value and lower than a second pressure value, the fertilizer pushing hydraulic system is controlled to reduce the fertilizer pushing speed of the fertilizer pushing plate, wherein the second preset resistance value is larger than the first preset resistance value. Preferably, in order to realize timely maintenance and prevent fault deterioration, when the acquired resistance value is higher than a second preset resistance value, the fertilizer spreader is also controlled to stop working.
It should be further explained that the fertilizer pushing plate is driven by the fertilizer pushing hydraulic system, when the fertilizer pushing plate is too large (higher than the first preset resistance value and lower than the second pressure value) due to the resistance, the flow of the fertilizer pushing hydraulic system is controlled to slow down the fertilizer pushing operation speed, so as to realize stable fertilizer pushing operation, if the pressure reaches the maximum set value (namely the second preset resistance value), the moving amount of the fertilizer pushing plate is still zero, the overflow valve is controlled to discharge oil, the fertilizer pushing mechanism is protected, and the control end can also send out an alarm signal after receiving a fault signal of the overload of the fertilizer pushing and stop for maintenance.
The mismatch of PTO rotational speed and the rotational speed of throwing fertile screw feeder group specifically includes: the ratio of the PTO rotation speed of the tractor to the rotation speed of the fertilizer throwing auger assembly 600 is greater than a set rotation speed ratio. To better understand the technical solution of the present embodiment, the following examples are illustrated: under normal conditions, no matter whether the auger is started or normally runs, the set rotation speed ratio of the PTO rotation speed of the tractor to the rotation speed of the fertilizer throwing auger set 600 is 4.5: 1, when throwing fertile screw feeder group 600 load too big, especially when throwing fertile screw feeder group 600 starts, easily appear the rotational speed ratio and be greater than 4.5: 1, it is described that the fertilizer spreading auger set 600 has an excessive load, and at this time, overload protection needs to be started, that is, the central controller sends a signal to control and reduce the fertilizer spreading speed of the fertilizer spreading mechanism 400 and the load of the fertilizer spreading auger set 600, so that the rotation speed ratio is normal. Meanwhile, the central controller adjusts the running speed of the tractor to be matched with the current fertilizer pushing speed according to the current fertilizer pushing speed so as to enable the fertilizer application amount per unit area to reach the set fertilizer application amount value. .
Further, the fertilizer spreading auger set 600 includes two augers arranged in parallel, and when the obtained rotation speeds of the two augers are inconsistent, the central controller 1c performs the following steps:
comparing the PTO rotating speed of the tractor with the rotating speeds of the two augers respectively to obtain a first rotating speed ratio and a second rotating speed ratio; when one of the first rotating speed ratio and the second rotating speed ratio is a set rotating speed ratio and the other one is inconsistent with the set rotating speed ratio, a first alarm signal is sent out; and when the first rotating speed ratio and the second rotating speed ratio are not consistent with the set rotating speed ratio, a second alarm signal is sent out.
If the rotating speeds of the two screw feeders are not consistent, the gear box body between the two screw feeders is damaged. Under general conditions, the gear box body can not be damaged completely, and the left and right two sets of gear sets of the reduction box can be normally used. Therefore, the ratio of the PTO rotating speed to the rotating speed of one of the augers is a set rotating speed ratio, a first alarm signal is sent at the moment to prompt that the auger transmission has a fault, but the fault is small, the fertilization operation can be continuously completed, the rotating speed of the auger with a high reading is used as the rotating speed of the normal auger, and after fertilization is completed, the fertilizer throwing device needs to be moved to a maintenance workstation for parking and maintenance.
If the first rotating speed ratio and the second rotating speed ratio are not set, the situation that the auger and the auger transmission system have large faults is indicated, and a second alarm signal is sent out at the moment to prompt that the fertilizer throwing operation is immediately finished.
According to the technical scheme, the different fault conditions of the auger are automatically distinguished by comparing and judging the speed ratio, so that the fault problem can be timely found, the complete fertilization operation is guaranteed as far as possible, and the maintenance of the fertilizer throwing equipment is more flexible.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: the method comprises the steps of obtaining the air pressure value of the tire, sending out a fault signal of insufficient air pressure when the air pressure value is lower than a first preset air pressure value, sending out a fault signal of air leakage of the tire when the air pressure is reduced and the reduction speed is within a preset reduction speed warning range, and sending out a fault signal of tire damage when the air pressure is reduced and the reduction speed exceeds a preset reduction speed dangerous value. The user can know the running condition of the tire through different tire pressure fault signals, and can inflate or maintain the tire in time.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: the method comprises the steps of obtaining a temperature value of a bearing in an axle, and sending a fault signal with overhigh temperature when the temperature value is higher than a first preset temperature value. The system can remind a user of suspending operation in time, and prevent parts from being damaged due to overhigh temperature.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: and acquiring real-time video data in the process of fertilizer pushing operation and outputting the real-time video data to a display. Can know through video detection and push up fertile operation in-process, push up the working process of fertile mechanisms such as board, fertile door, throwing fertile screw feeder group and can both know in real time, for example, open or the closed in-process at fertile door, see whether the fertile door appears warping, whether the motion is steady, if not steady, probably fertile door warp or the track warp. For another example, in the fertilizer throwing process, whether the two fertilizer throwing screw feeders rotate synchronously and in opposite directions is checked, so that the normal operation is explained in a synchronous manner, and the gear beating phenomenon of gear boxes on two sides of the fertilizer throwing transmission system is explained in an asynchronous manner. Automatic detection and manual monitoring are combined, the accuracy and flexibility of fault detection are further improved, and fault reasons can be found more easily through recorded fault videos during fault maintenance, so that maintenance can be performed more pertinently. The automatic fault detection method for the fertilizer spreader further comprises the following steps: obtain the fertilizer weight value in the fertile case, when the fertilizer weight value reaches preset weight value, output current fertilizer weight or/and from the fertile case and be full-load required fertilizer weight to stop adding fertile when the fertile case is full-load. The step can effectively prevent the fertilizer from overflowing.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: the running speed of the tractor is obtained, the weight value of the fertilizer in the fertilizer box is obtained, and the fertilizer throwing amount in unit area is obtained according to the running speed of the tractor and the weight value of the fertilizer in the fertilizer box. As one embodiment, the fertilizer throwing amount per unit area may be calculated by, but not limited to, calculating a fertilizer reduction amount from a difference in fertilizer weight over a certain period of time, multiplying a travel speed of the tractor by the period of time to obtain a tractor travel, and multiplying the tractor travel by the vehicle width to obtain a fertilizer throwing area per period of time, whereby the fertilizer throwing amount per unit area may be obtained by dividing the fertilizer reduction amount by the fertilizer throwing area.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: and acquiring the displacement value of the fertilizer pushing plate, and controlling the fertilizer pushing plate to stop pushing the fertilizer and reset when the displacement value of the fertilizer pushing plate reaches the set displacement value.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: acquiring position information of the fertilizer door, and stopping pushing and lifting the fertilizer door when the fertilizer door reaches a set door opening position in the state of pushing and lifting the fertilizer door, or continuing pushing and lifting the fertilizer door; and under the state of descending the fertilizer door, when the fertilizer door reaches the set door closing position, stopping descending the fertilizer door, otherwise, continuing to descend the fertilizer door.
The automatic fault detection method for the fertilizer spreader further comprises the following steps: and communicating with the operation and maintenance workstation to transmit the obtained operation data and/or fault signals of the fertilizer spreader to the operation and maintenance workstation. The operation and maintenance workstation is equivalent to a remote monitoring station, after receiving the operation data and/or the fault signal of the fertilizer spreader, the operation and maintenance workstation can display the operation data and/or the fault signal on a display screen, different signals are displayed in different modes such as different symbols, images or colors, the operation and maintenance workstation sends out corresponding maintenance robots or maintenance personnel to maintain the fertilizer spreader according to the corresponding fault signal, and the fertilizer spreader can be directly driven to the operation and maintenance workstation to be maintained.
According to the automatic fault detection method for the fertilizer spreader, real-time data are fed back to the central controller through real-time monitoring of each execution element of the fertilizer spreader, the central controller analyzes and judges according to data comparison of each sensor, faults occurring in the operation of the fertilizer spreader are found, the fertilizer spreader is maintained in time, the automation degree is high, and application and popularization of the fertilizer spreader in unmanned farms are facilitated.
Referring to fig. 2 to fig. 6, a fertilizer spreader according to an embodiment of the present invention includes the above-mentioned automatic fault detection system;
the fertilizer spreader also comprises a fertilizer spreading mechanism and a tractor 100 connected with the fertilizer spreading mechanism to pull the fertilizer spreading mechanism, wherein the fertilizer spreading mechanism comprises a vehicle body 200, a fertilizer box 300, a fertilizer pushing mechanism 400, a fertilizer spreading area 500 and a fertilizer spreading auger set 600;
Furthermore, a fertilizer door 302 capable of opening and closing is arranged on the fertilizer outlet 301, and the fertilizer door 302 is connected with a fertilizer door driving device 303 for driving the fertilizer door to open and close. The fat gate drive 303 is a fat gate hydraulic system.
Further, the fertilizer pushing mechanism 400 includes a fertilizer pushing plate 401 and a fertilizer driving device 402 connected to the fertilizer pushing plate 401. The push actuator 402 is a push hydraulic system. The fertilizer pushing hydraulic system can apply hydraulic sources output by a tractor hydraulic pump and a proportional flow valve, and the hydraulic sources are transmitted to a fertilizer pushing oil cylinder through an electric control reversing valve of the fertilizer throwing machine to carry out fertilizer pushing operation.
Further, an axle 201 is arranged at the bottom of the vehicle body 200, and vehicle wheels 202 are arranged on the axle 201.
Further, the fertilizer spreader also comprises a PTO device 101 and a power input and transmission system 103 connected with the PTO device 101.
As one of the preferred embodiments, but not limiting, the setting positions of each unit on the fertilizer spreader in the automatic fertilizer spreader fault detection system are:
the video monitoring device 6 is arranged at the upper end of a front beam bracket of the vehicle body; the weighing sensor 7 is connected with the fertilizer box and a vehicle body frame of the vehicle body; the running speed sensor 8 is arranged on the axle; the displacement sensor 9 is arranged on the vehicle body; the proximity switches 10 are arranged at the upper end of one side of the fertilizer outlet 301, more specifically, two proximity switches 10 are arranged, and the upper end and the lower end of the fertilizer door are respectively provided with a limiting block matched with the corresponding proximity switches; the pressure sensor 1 is arranged on a fertilizer pushing hydraulic system connected with the fertilizer pushing plate to sense hydraulic pressure, or is arranged on the fertilizer pushing plate to sense the reaction force generated when the fertilizer pushing plate pushes the fertilizer, and the reaction force is used as a resistance value to be detected; the auger rotating speed sensor 2 is arranged at the upper end of the auger; the PTO rotating speed sensor 3 is arranged on the tractor; the tire pressure detection device 4 is arranged on a tire of the fertilizer throwing mechanism; the wheel bearing temperature measuring device 5 is arranged on the axle.
The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the utility model, and it is intended that such changes and modifications be considered as within the scope of the utility model.
Claims (10)
1. A fertilizer spreader fault automatic detection system comprises a central controller, and is characterized in that the central controller is coupled with one or more of a pressure sensor (1), an auger rotation speed sensor (2), a PTO rotation speed sensor (3), a tire pressure detection device (4) and a wheel bearing temperature measurement device (5);
pressure sensor (1) is used for detecting the resistance that pushes away the fertile board, auger speed sensor (2) for detect the rotational speed of auger, PTO speed sensor (3) are used for detecting the PTO rotational speed of tractor, atmospheric pressure in tire pressure detection device (4) are used for detecting the tire, wheel bearing temperature measuring device (5) are arranged in the temperature that detects bearing in the axle.
2. The automatic fertilizer spreader fault detection system of claim 1, further comprising a video monitoring device (6) coupled to the central controller for capturing real-time video of the fertilizer spreading operation.
3. The automatic detection system of fertilizer spreader fault according to claim 1, characterized by further comprising a load cell (7) coupled to the central controller for detecting the weight of fertilizer in the fertilizer tank.
4. The automatic detection system of fertilizer spreader fault according to claim 1, characterized by further comprising a travel speed sensor (8) coupled to the central controller for detecting the travel speed of the tractor.
5. The automatic fertilizer spreader fault detection system of claim 1, further comprising a displacement sensor (9) coupled to the central controller for detecting displacement data of the fertilizer board.
6. The automatic fertilizer spreader fault detection system of claim 1, further comprising a proximity switch (10) coupled to the central controller for detecting fertilizer door position information.
7. The automatic fertilizer spreader fault detection system of claim 1, further comprising a communication module (11) coupled to the central controller for transmitting operating data of the fertilizer spreader to the operation and maintenance workstation.
8. A fertilizer spreader, characterized by comprising an automatic fault detection system for the fertilizer spreader according to any one of claims 1-7;
the fertilizer spreader also comprises a fertilizer spreading mechanism and a tractor (100) connected with the fertilizer spreading mechanism to pull the fertilizer spreading mechanism, wherein the fertilizer spreading mechanism comprises a vehicle body (200), a fertilizer box (300), a fertilizer pushing mechanism (400), a fertilizer spreading area (500) and a fertilizer spreading auger set (600);
tractor (100) with automobile body (200) are connected, fertile case (300) are located on automobile body (200), it locates to push away fertile mechanism (400) fertile case (300) are last, it locates to throw fertile district (500) fertile case (300) afterbody, be equipped with on fertile case (300) and be used for supplying fertilizer in fertile case (300) to get into the play fertile mouth (301) of throwing fertile district (500), it locates to throw fertile screw feeder group (600) throw fertile district (500) afterbody in order to throw the fertilizer of fertile district (500) and throw out.
9. The fertilizer spreader as claimed in claim 8, wherein the fertilizer outlet (301) is provided with a fertilizer door (302) which can be opened and closed, and the fertilizer door (302) is connected with a fertilizer door driving device (303) for driving the fertilizer door to be opened and closed.
10. The fertilizer spreader of claim 8, further comprising a PTO device (101) and a power input and transmission system (103) coupled to the PTO device (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736241.4U CN215573098U (en) | 2021-07-28 | 2021-07-28 | Fertilizer throwing machine fault automatic detection system and fertilizer throwing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736241.4U CN215573098U (en) | 2021-07-28 | 2021-07-28 | Fertilizer throwing machine fault automatic detection system and fertilizer throwing machine |
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| Publication Number | Publication Date |
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| CN215573098U true CN215573098U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121736241.4U Active CN215573098U (en) | 2021-07-28 | 2021-07-28 | Fertilizer throwing machine fault automatic detection system and fertilizer throwing machine |
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| CN (1) | CN215573098U (en) |
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2021
- 2021-07-28 CN CN202121736241.4U patent/CN215573098U/en active Active
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Address after: Room 602-001, 6th Floor, Country Garden Center, No. 1 Country Garden Avenue, Country Garden Community, Beijiao Town, Shunde District, Foshan City, Guangdong Province, 528300 (Residence application, only for office use) Patentee after: Guangdong Haoyun Technology Co.,Ltd. Address before: 528300 room 201-25, East office, No. 11, Junye East Road, Beijiao Industrial Park, Shunjiang community, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: Guangdong Haoyun Technology Co.,Ltd. |