CN210868846U

CN210868846U - Threshing cylinder fault simulation monitoring system of combine harvester

Info

Publication number: CN210868846U
Application number: CN201921202012.7U
Authority: CN
Inventors: 王新; 徐保岩; 王远; 王昱翔; 倪昕东; 王禹
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-30
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to the technical field of agricultural machinery fault detection, and provides a combine threshing cylinder fault simulation monitoring system, which comprises a brake loading device, a fault auxiliary disc and a data monitoring component, wherein the fault auxiliary disc is arranged on a threshing cylinder, and the output end of the brake loading device is connected with the shaft end of the threshing cylinder; the data monitoring component is arranged at the joint of the braking loading device and the shaft end of the threshing cylinder, and the braking loading device is electrically connected with the data monitoring component. The utility model provides a combine threshing cylinder trouble simulation monitored control system, through preassemble trouble auxiliary disc and braking loading device on threshing cylinder to utilize data monitoring subassembly to gather the relevant parameter of threshing, the dynamic load loading of control stopper to threshing cylinder can realize on the complete machine that threshing cylinder dynamic unbalance trouble, axle head bearing trouble and cylinder block up the presetting of trouble, and the acquirement of threshing cylinder trouble data does not receive weather, region and season restriction, repeatedly operable.

Description

Threshing cylinder fault simulation monitoring system of combine harvester

Technical Field

The utility model relates to an agricultural machine fault detection technical field, more specifically relates to a combine threshing cylinder fault simulation monitored control system.

Background

The threshing cylinder is one of the core working components of the threshing device of the combine harvester, and the threshing cylinder is mainly used for separating stalks and seeds in the process of processing materials; the working performance and parameters of the threshing cylinder are closely related to the harvesting quality and the working efficiency of the combine harvester. During the grain harvesting process, various faults of the threshing cylinder are easy to occur due to the changes of factors such as working conditions, harvested objects, technical proficiency of a manipulator and the like. The occurrence of the failure of the threshing cylinder can cause the reduction of the production efficiency of the harvester, and the loss rate, the breakage rate and the impurity rate far exceed the numerical values specified in the test method of the harvesting mechanical combine harvester of the national standard GB/T8097-1996.

The existing research aiming at threshing cylinder faults mainly focuses on a diagnosis method and a device, wherein the diagnosis method and the device for the faults of the tangential-longitudinal flow combine harvester based on the fuzzy neural network are provided, and the device can monitor the working condition of the combine harvester in real time and early warn the blocking faults in time; in addition, the method also comprises a method for early warning and alarming the blockage fault of the threshing cylinder of the combine harvester, and the method makes three-level decisions of normal operation, blockage early warning and alarming by comparing the characteristic quantity of the blockage fault symptom and the standard mode of the characteristic quantity of the blockage fault symptom based on a judgment rule.

At present, researches on a threshing cylinder fault diagnosis method and theory of a combine harvester, establishment of a mathematical model, selection of a fault symptom characteristic scalar and design of a fault database are all based on a large amount of field fault data. The acquisition of field fault data is limited by factors such as weather, regions, crop attributes and the like, and the fault data is difficult to acquire and has poor repeatability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An embodiment of the utility model provides a combine threshing cylinder trouble simulation monitored control system to field trouble data acquisition difficulty among the solution prior art, the poor problem of repeatability.

(II) technical scheme

In order to solve the technical problem, the embodiment of the utility model provides a combine threshing cylinder trouble simulation monitored control system, include: the device comprises a brake loading device, a fault auxiliary disc, a fault bearing and a data monitoring assembly, wherein the fault auxiliary disc is preassembled on a threshing cylinder of the combine harvester, and the output end of the brake loading device is connected with the shaft end of the threshing cylinder; the data monitoring assembly comprises a vibration detection component and a rotating speed detection component, the vibration detection component and the rotating speed detection component are arranged at the joint of the braking loading device and the shaft end of the threshing cylinder, and the braking loading device is electrically connected with the data monitoring assembly.

Preferably, the brake loading device comprises: the output shaft of the brake is connected with the shaft end of the threshing cylinder;

the cooling assembly includes: the brake comprises a water cooler, a water tank, a water inlet pipeline and a water outlet pipeline, wherein the water cooler is arranged on the outer side of the water tank, a cooling water inlet and a cooling water outlet are arranged in the brake, the outlet of the water tank is connected with the cooling water inlet through the water inlet pipeline, and the inlet of the water tank is connected with the cooling water outlet through the water outlet pipeline.

Preferably, a sensor fixing plate is arranged between the brake and the shaft end of the threshing cylinder, the sensor fixing plate comprises a sensor mounting seat and a bearing seat fastening plate, and the sensor mounting seat is fixed on the bearing seat fastening plate;

the faulty bearing comprises: the bearing comprises an outer ring fault bearing, an inner ring fault bearing and a retainer fault bearing;

the side wall of the threshing chamber of the combine harvester is provided with a roller rear bearing seat, the bearing seat fastening plate is connected with a spigot of the roller rear bearing seat, and the fault bearing is installed in the roller rear bearing seat.

Preferably, the shaft end of the threshing cylinder penetrates through the fault bearing and is connected with the output shaft of the brake through a chain transmission mechanism;

the chain transmission mechanism comprises a driving chain wheel, a transmission chain and a driven chain wheel, the driving chain wheel is installed on an output shaft of the brake, the driven chain wheel is installed at the shaft end of the threshing cylinder, and the transmission chain is used for connecting the driving chain wheel and the driven chain wheel.

Preferably, the data monitoring assembly comprises: the sensor module and the potentiometer module are connected with the data processing module through the A/D conversion module;

the sensor module includes: the brake comprises a vibration sensor, a rotating speed sensor and a temperature sensor, wherein the vibration sensor and the rotating speed sensor are installed on a sensor installation seat, and the temperature sensor is arranged on the brake.

Preferably, the data monitoring assembly further comprises: the device comprises a control module, an alarm module, a power module, a data storage module, a data display module and an SPI module;

the data processing module is connected with the control module through the SPI module;

the alarm module, the data display module and the data storage module are respectively connected with the control module;

the control module and the data processing module are respectively connected with the power supply module.

Preferably, the power supply module includes: the brake device comprises an adjustable direct current stabilized power supply, a monitoring system power supply and a water cooler power supply, wherein the adjustable direct current stabilized power supply is used for supplying power to the brake, the monitoring system power supply is used for supplying power to the sensor module, the data processing module and the control module, and the water cooler power supply is used for supplying power to the water cooler.

Preferably, a brake fixing seat is arranged on the sidewall of the threshing chamber of the combine harvester, and the brake is fixed on the brake fixing seat.

Preferably, the threshing cylinder comprises a front section cylinder, a middle section cylinder and a rear section cylinder, the fault auxiliary disc comprises a front fault auxiliary disc and a rear fault auxiliary disc, the front fault auxiliary disc is arranged in the middle of the front section cylinder, and the rear fault auxiliary disc is arranged in the middle of the rear section cylinder;

and a plurality of thread through holes which are uniformly distributed along the radial direction are arranged on the front failure auxiliary disc and the rear failure auxiliary disc, and a balance weight part is arranged in each thread through hole.

(III) advantageous effects

The embodiment of the utility model provides a combine threshing cylinder trouble simulation monitored control system, through pre-installation trouble auxiliary disc on threshing cylinder, trouble bearing and braking loading device, and utilize data monitoring subassembly to gather threshing cylinder's vibration and rotational speed parameter, the temperature parameter of cooperation stopper simultaneously, not only can realize threshing cylinder's dynamic loading, and can realize threshing cylinder dynamic unbalance trouble on the complete machine, the presetting of axle head bearing trouble and cylinder jam trouble, can realize the simulation of threshing cylinder operating mode in the laboratory, and threshing cylinder jam data's acquireing does not receive weather, the restriction of region and season, can repeat the operation, and is very convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the installation structure of a fault simulation monitoring system of a threshing cylinder of a combine harvester according to an embodiment of the present invention;

fig. 2 is a schematic view of an installation structure of a fault auxiliary disc in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a brake loading device in an embodiment of the present invention;

fig. 4 is a schematic structural view of a brake holder according to an embodiment of the present invention;

fig. 5 is an assembly diagram of a sensor fixing plate according to an embodiment of the present invention;

fig. 6 is a schematic connection diagram of a data monitoring module according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a power module according to an embodiment of the present invention

In the figure: 1-a brake loading device; 2-a threshing chamber; 3-failure auxiliary disc; 4-a threshing cylinder; 5-a threaded through hole; 6-rear fault auxiliary disc; 7-rear drum; 8-middle section roller; 9-front section roller; 10-front failure auxiliary disc; 11-a water tank; 12-a water inlet pipe; 13. a water outlet pipeline; 14-a brake; 15-rear side wall of threshing chamber; 16-brake mounting; 17-water coolers; 18-front diagonal lacing wire; 19-rear inclined lacing wire; 20-rear longitudinal support; 21-front brake base; 22-rear brake base; 23-front longitudinal support; 24-a temperature detection component; 25-a drive sprocket; 26-a drive chain; 27-a driven sprocket; 28-sensor mount; 29-vibration detection means; 30-bearing block fastening plate; 31-rear axle end; 32-roller rear bearing seat; 33-failed bearing; 34-a rotational speed detection means; 35-a data monitoring component; 36-a sensor module; 37-A/D conversion module; 38-a data storage module; 39-an alarm module; 40-a data processing module; 41-a control module; 42-a power supply module; 43-a potentiometer module; 44-a data display module; 45-switch; 46-adjustable DC regulated power supply; 47-monitoring system power supply; 48-submersible pump power supply; 49-Water chiller Power supply; 50-a brake relay; 51-Water cooler System Relay.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, an embodiment of the present invention provides a combine threshing cylinder fault simulation monitoring system, including: brake loading apparatus 1, failure auxiliary 3 and data monitoring assembly 35.

Referring to fig. 1, a brake loading device 1 is connected to a shaft end of a threshing cylinder 4 of a combine harvester for applying a dynamic load to the threshing cylinder 4, and in this embodiment, the brake loading device 1 is specifically connected to a rear shaft end 31 of the threshing cylinder 4. The fault auxiliary disc 3 is pre-installed on a threshing cylinder 4 of the combine harvester and is used for simulating the dynamic unbalance fault of the threshing cylinder 4. It should be noted that the threshing cylinder 4 can rotate horizontally, is located inside the threshing chamber 2 of the combine harvester, and is a core component of the threshing chamber 2.

In addition, referring to fig. 5, the data monitoring assembly 35 includes a vibration detecting component 29 and a rotation speed detecting component 34, the vibration detecting component 29 and the rotation speed detecting component 34 are disposed at the connection position of the brake loading device 1 and the rear shaft end 31 of the threshing cylinder for collecting the rotation speed and the vibration parameters of the threshing cylinder 4, the brake loading device 1 is electrically connected with the data monitoring assembly 35, and the dynamic loading of the threshing cylinder by the brake loading device 1 is realized through the relevant parameters collected by the data monitoring assembly 35 or the load spectrum data stored inside the data monitoring assembly 35.

The embodiment of the utility model provides a combine threshing cylinder trouble simulation monitored control system, through preassemble trouble auxiliary disc and braking loading device on threshing cylinder, and utilize data monitoring subassembly to gather threshing cylinder and gather vibration and rotational speed, thereby control stopper loading device is to threshing cylinder's dynamic load loading, can realize threshing cylinder dynamic unbalance trouble on the complete machine, the presetting of axle head bearing trouble and cylinder jam trouble, can realize threshing cylinder burden operating mode's simulation in the laboratory, and threshing cylinder blocks up acquireing of data and does not receive weather, the restriction in region and season, can repeat the operation, it is very convenient.

On the basis of the above embodiment, referring to fig. 2, the threshing cylinder includes a front-stage cylinder 9, a middle-stage cylinder 8, and a rear-stage cylinder 7; the failure auxiliary disk 3 comprises a front failure auxiliary disk 10 and a rear failure auxiliary disk 6; the front failure auxiliary disc 10 is fixed in the middle of the front section roller 9 in a welding mode; the rear failure auxiliary disc 6 is fixed in the middle of the rear section roller 7 in a welding mode, so that dynamic unbalance failures of threshing rollers combined at different positions can be conveniently set.

Presetting threshing cylinder dynamic unbalance trouble is the important function of this system, and in order to realize threshing cylinder dynamic unbalance trouble, the surface of preceding trouble auxiliary 10 and back trouble auxiliary 6 has seted up a plurality of along radial evenly distributed's screw through-hole 5 respectively, and screw through-hole 5 specifically is M8 screw through-hole in this embodiment, and the quantity is 18, realizes threshing cylinder 4's mass uneven distribution through installing the counter weight in the screw through-hole 5 on preceding trouble auxiliary 10 and the back trouble auxiliary 6, can realize threshing cylinder dynamic unbalance trouble. The counterweight part of the counterweight part in the embodiment is a bolt nut, and when the radial distance of the bolt nut along the fault auxiliary disc is different, the dynamic unbalance faults of the threshing cylinder in different degrees can be preset.

On the basis of the above embodiments, referring to fig. 3, the brake loading device 1 includes: a brake 14 and a cooling assembly for cooling the brake 14, the output shaft of the brake 14 being in particular connected with the rear shaft end 31 of the threshing cylinder 4 (the front shaft end of the threshing cylinder 4 only co-operating with a corresponding faulty bearing).

Wherein, the cooling module includes: the water cooler 17, water tank 11, inlet channel 12 and outlet conduit 13, the water cooler sets up in the outside of water tank 11 for carry out the cooling to the water in the water tank 11. A cooling water inlet and a cooling water outlet are arranged in the brake 14, the outlet of the water tank 11 is connected with the cooling water inlet through a water inlet pipeline 12, and the inlet of the water tank 11 is connected with the cooling water outlet through a water outlet pipeline 13. In addition, in order to smoothly circulate the cooling water in the water tank 11, a submersible pump (not shown) is provided in the water tank 11, and one end of the water inlet pipe 12 extends from an inlet of the water tank 11 to the inside and is connected to the submersible pump (not shown).

On the basis of the above embodiments, referring to fig. 4, a brake fixing seat 16 is provided on the rear sidewall 15 of the threshing chamber of the combine harvester, the brake 14 is mounted on the brake fixing seat 16, and the brake 14 is fixed on the rear sidewall 15 of the threshing chamber through the brake fixing seat 16.

Specifically, the brake holder 16 includes: front diagonal tie bar 18, rear diagonal tie bar 19, rear longitudinal support 20, front brake base 21, rear brake base 22, and front longitudinal support 23. The rear longitudinal support 20 and the front longitudinal support 23 are respectively fixed on the rear side wall 15 of the threshing chamber in a welding mode; the brake 14 is connected with the front brake base 21 and the rear brake base 22 through bolts and nuts; the front brake base 21 and the rear brake base 22 are provided with slide holes to facilitate the adjustment of the front and rear distance of the brake 14.

The front brake base 21 and the rear brake base 22 are arranged between the rear longitudinal support 20 and the front longitudinal support 23 in a welding mode; the front diagonal tie bar 18 and the rear diagonal tie bar 19 play a role of structural reinforcement, one end of which is welded to the rear side wall 15 of the threshing chamber, and the other end of which is welded to the rear longitudinal support 20 and the front longitudinal support 23, respectively.

On the basis of the above embodiments, the front side wall of the threshing chamber is provided with a front roller bearing seat (not shown), the rear side wall 15 of the threshing chamber is provided with a rear roller bearing seat 32, a sensor fixing plate is arranged between the brake 14 and the rear shaft end 31 of the threshing roller, and the sensor fixing plate is arranged between the rear roller bearing seat 32 and the driving sprocket 25 on the brake 14.

The sensor fixing plate comprises a sensor mounting seat 28 and a bearing seat fastening plate 30, and the sensor mounting seat 28 is welded on the bearing seat fastening plate 30. The bearing seat fastening plate 30 is connected with a spigot of a roller rear bearing seat 32 through interference fit, a fault bearing 33 is arranged in both a roller front bearing seat (not shown in the figure) and the roller rear bearing seat 32, and a rear shaft end 31 of the threshing roller 4 is matched with the fault bearing 33.

Bearing fault simulation is an important function of the system, and the fault bearing 33 comprises three types, namely an outer ring fault bearing 33, an inner ring fault bearing 33 and a retainer fault bearing 33; when bearing fault simulation is performed, different types of bearing fault presetting is realized by replacing the fault bearings 33 with three types of faults.

On the basis of the above-described embodiments, the rear shaft end 31 of the threshing cylinder 4 is fitted with the failed bearing 33 and is connected with the brake 14 after passing through the failed bearing 33, and the rear shaft end 31 of the threshing cylinder 4 is connected with the output shaft of the brake 14, in particular, by a chain transmission mechanism.

Specifically, the chain drive mechanism includes: the driving chain wheel 25 is arranged on an output shaft of the brake 14, the driven chain wheel 27 is arranged at the rear shaft end 31 of the threshing cylinder, and the driving chain 26 is used for connecting the driving chain wheel 25 and the driven chain wheel 27 to realize the transmission between the driving chain wheel 25 and the driven chain wheel 27. Wherein, the driving chain wheel 25 and the driven chain wheel 27 are both 12A chain wheels with 13 teeth.

On the basis of the foregoing embodiments, referring to fig. 6, the data monitoring component 35 specifically includes: sensor module 36, a/D conversion module 37, data storage module 38, alarm module 39, data processing module 40, control module 41, power module 42, potentiometer module 43, data display module 44, and switch 45.

Wherein the sensor module 36 includes: a vibration detecting means 29, a rotational speed detecting means 34, and a temperature detecting means 24. Specifically, the vibration detection component 29 and the rotation speed sensor 34 are respectively connected with the sensor mounting seat 28 through bolts and nuts, the vibration detection component 29 is used for detecting vibration signals caused by the dynamic unbalance of the threshing cylinder movement 4 and the failed bearing 33, the rotation speed detection component 34 is used for detecting the angular speed of the threshing cylinder, the vibration detection component 29 is specifically a vibration sensor, and the rotation speed detection component 34 is specifically a rotation speed sensor. For ease of installation, temperature sensing component 24 employs a magnetic-type temperature sensor that is attachable to brake 14 for sensing the temperature of brake 14.

In the above embodiment, the a/D conversion module 37 uses a 16-bit high-precision a/D conversion chip to complete the conversion from the analog signals of the sensor module 36 and the potentiometer module 43 to the digital signals; the data processor module employs a DSP (digital signal processor) that is capable of fixed-point and floating-point operations of 1600/1200MFLOPS (million floating-point operations per second). The sensor module 36 and the potentiometer module 43 are both connected to the data processing module 40 via the a/D conversion module 37. .

The data storage module 38 is mainly used for storing the load spectrum data of the known threshing cylinder, and can be an SD card or a TF card; the alarm module 39 is mainly used for alarming when the temperature of the brake 14 is too high, and may be a buzzer or a warning light.

The control module 41 adopts an STM32F103 processor based on an ARM Cortex-M kernel, the control module 41 and the data processing module 40 complete high-speed transmission of data between the ARM and the DSP through an SPI Interface (Serial Peripheral Interface), the data storage module 38, the data processing module 40, the alarm module 39 and the data display module 44 are respectively and electrically connected with the control module 41, and the control module 41 and the data processing module 40 are respectively and electrically connected with the power supply module 42.

Referring to fig. 7, power module 42 includes regulated dc power supply 46, monitoring system power supply 47, submersible pump power supply 48, and water chiller power supply 49. The adjustable direct current stabilized power supply 46 is used for supplying power to the brake 14, the input voltage of the adjustable direct current stabilized power supply 46 is 220V +/-20%, the frequency of the adjustable direct current stabilized power supply is 50Hz, the output voltage of the adjustable direct current stabilized power supply is 0-40V, the adjustable direct current stabilized power supply 46 is connected with the control module 41 through an RS232 serial port, and the main function is to analyze a control instruction transmitted by the control module 41 into the current. The monitoring system power supply 47 is used to power the sensor module 36, the data processing module 40, and the control module 41. A submersible pump power supply 48 is used to power a submersible pump (not shown) and a water cooler power supply 49 is used to power the water cooler 17.

On the basis of the above embodiments, the system for simulating the fault of the threshing cylinder of the combine harvester according to the embodiment of the present invention includes a manual loading mode and an automatic loading spectrum loading mode during specific operation. Wherein, when the brake 14 is in a manual loading mode, the brake 14 is controlled by the manual regulation potentiometer 43 to apply a simulated braking force to the threshing cylinder; when the brake 14 is in an automatic loading mode, the brake 14 applies a simulated braking force to the threshing cylinder according to preset load spectrum data.

Specifically, the working processes of the manual loading mode and the automatic loading spectrum loading mode are as follows: when the switch 45 is closed, the power module 42 supplies power to the brake 14, the data monitoring assembly 35, the submersible pump (not shown) and the water cooler 17; the data processing module 40, the sensor module 36, the A/D conversion module 37, the data display module 44, the alarm module 39, the control module 41 and the data storage module 38 start to work; at this time, the temperature detection part 24 starts to acquire the temperature value of the brake 14; the a/D conversion module 37 converts the acquired temperature value into a voltage value, and after passing through the data processing module 40 and the control module 41, the data storage module 38 and the data display module 44 respectively store and display the temperature value; meanwhile, the control module 41 compares the collected working temperature of the brake 14 with a set temperature threshold, for example, the preset temperature threshold is 70 ℃, and if the working temperature of the brake 14 is higher than 70 ℃, the data display module 44 displays the current temperature value; the alarm module 39 starts to give an alarm; the loading mode is controlled not to work, the brake relay 50 is in a normally open state, the water cooling system brake 51 is in a normally closed state, and the water cooling assembly starts to work; if the working temperature of the brake 14 is lower than 70 ℃, the data display module 44 displays the current temperature value; the alarm module 39 stops alarming; the control loading mode begins with the brake relay 50 in a normally closed and water cooling assembly relay 51 in a normally closed state.

Data monitoring assembly when the data monitoring assembly is in the manual loading mode, the potentiometer module 43 may operate; the a/D conversion module 37 converts the resistance value of the potentiometer module 42 into a voltage value, and the voltage value is transmitted to the control module 41 through the data processing module 40 and the SPI interface; the control module 41 converts the voltage value into a control message, and outputs the control message to the adjustable direct-current stabilized power supply 46 after passing through the RS232 serial port; finally, the current is converted into a current value after being analyzed by the adjustable direct current stabilized power supply 46 and is output to the brake 14; the data monitoring component can adjust the potentiometer to the maximum value in a manual loading mode to simulate the blockage fault of the threshing cylinder;

when in the automatic load spectrum loading mode, the potentiometer module 43 is inoperative; the control module 41 reads the load spectrum data in the data storage module 38, and after passing through the control module 41, the control message is output to the adjustable direct current stabilized voltage power supply 46 through the RS232 serial port; after being analyzed by the adjustable direct current stabilized voltage supply 46, the dynamic current is converted into dynamic current and is output to the brake 14; in the automatic loading mode of the load spectrum, the dynamic loading of the threshing cylinder can be realized, and the field working condition of the threshing cylinder can be simulated;

in the embodiment of the utility model, the monitoring of the dynamic unbalance fault of the threshing cylinder state is an important function of the embodiment; the vibration detection part 29 and the rotating speed detection part 34 respectively display and store the acquired current values after the acquired vibration information and rotating speed information pass through the A/D conversion module 37, the data processing module 40 and the control module 41, and the data display module 44 and the data storage module 38 respectively display and store the acquired current values.

The embodiment of the utility model provides a combine threshing cylinder trouble simulation monitored control system, through preassemble trouble auxiliary disc and braking loading device on threshing cylinder, and utilize data monitoring subassembly to gather threshing cylinder's vibration and rotational speed parameter, cooperate the temperature parameter of stopper simultaneously, realize the stopper to threshing cylinder's dynamic load loading, can realize threshing cylinder dynamic unbalance trouble on the complete machine, axle head bearing trouble and cylinder jam fault preset, can realize the simulation of threshing cylinder operating mode in the laboratory, and the acquisition of threshing cylinder jam data does not receive weather, the restriction of region and season, can repeat the operation, and is very convenient.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A combine threshing cylinder fault simulation monitoring system which is characterized by comprising: the device comprises a brake loading device, a fault auxiliary disc and a data monitoring assembly, wherein the fault auxiliary disc is preassembled on a threshing cylinder of the combine harvester, and the output end of the brake loading device is connected with the shaft end of the threshing cylinder;

the data monitoring assembly comprises a vibration detection component and a rotating speed detection component, both the vibration detection component and the rotating speed detection component are arranged at the joint of the brake loading device and the shaft end of the threshing cylinder, and the brake loading device is electrically connected with the data monitoring assembly.

2. The combine threshing cylinder fault simulation monitoring system of claim 1 wherein the brake loading device comprises: the output shaft of the brake is connected with the shaft end of the threshing cylinder;

3. The combine harvester threshing cylinder fault simulation monitoring system of claim 2, wherein a sensor fixing plate is arranged between the brake and the shaft end of the threshing cylinder, the sensor fixing plate comprises a sensor mounting seat and a bearing seat fastening plate, and the sensor mounting seat is fixed on the bearing seat fastening plate;

the threshing chamber side wall of the combine harvester is also provided with a roller rear bearing seat, the bearing seat fastening plate is connected with a spigot of the roller rear bearing seat, a fault bearing is arranged in the roller rear bearing seat, and the shaft end of the threshing cylinder is matched with the fault bearing for installation.

4. The combine harvester threshing cylinder fault simulation monitoring system of claim 3 wherein the shaft end of the threshing cylinder passes through the fault bearing and is connected with the output shaft of the brake through a chain transmission mechanism;

5. The combine threshing cylinder fault simulation monitoring system of claim 3, wherein the data monitoring assembly includes: the sensor module and the potentiometer module are connected with the data processing module through the A/D conversion module;

the sensor module includes: the vibration detection component, the rotating speed detection component and the temperature detection component are mounted on the sensor mounting seat, and the temperature detection component is arranged on the brake.

6. The combine threshing cylinder fault simulation monitoring system of claim 5, wherein the data monitoring assembly further comprises: the device comprises a control module, an alarm module, a power supply module, a data storage module and a data display module;

the alarm module, the data processing module, the data display module and the data storage module are respectively connected with the control module;

7. The combine threshing cylinder fault simulation monitoring system of claim 6 wherein the power module includes: the brake device comprises an adjustable direct current stabilized power supply, a monitoring system power supply and a water cooler power supply, wherein the adjustable direct current stabilized power supply is used for supplying power to the brake, the monitoring system power supply is used for supplying power to the sensor module, the data processing module and the control module, and the water cooler power supply is used for supplying power to the water cooler.

8. The combine harvester threshing cylinder fault simulation monitoring system of claim 2, wherein a brake holder is provided on a threshing chamber side wall of the combine harvester, the brake being fixed to the brake holder.

9. The combine threshing cylinder fault simulation monitoring system of claim 1 wherein the threshing cylinder includes a front section cylinder, a middle section cylinder and a rear section cylinder, the fault subdisc includes a front fault subdisc and a rear fault subdisc, the front fault subdisc is disposed in the middle of the front section cylinder and the rear fault subdisc is disposed in the middle of the rear section cylinder;