Compression mechanism compression operation motion control system and method

Abstract

The present invention relates to a compression operation motion control system of a compression mechanism, which includes a compression mechanism and a control system, wherein the garbage compression mechanism is arranged at one end of a garbage inlet; the control system includes: a controller: used for receiving, processing and outputting data signals; a timer: used for recording the output duration of the measured execution signal and transmitting relevant data to the controller; a pressure sensor 1, which is arranged on the cylinder pressure oil circuit control valve group or oil circuit of the skateboard cylinder, is used to monitor the hydraulic system pressure of the skateboard cylinder and transmit a signal to the controller; a pressure sensor 2, which is arranged on the cylinder pressure oil circuit control valve group or oil circuit of the scraper cylinder, is used to monitor the hydraulic system pressure of the scraper cylinder and transmit a signal to the controller; the controller is electrically connected to the timer, pressure sensor 1, pressure sensor 2, skateboard cylinder and scraper cylinder respectively, and the above technical solution is used to efficiently control and improve the compression force and compression time.

Description

Technical Field

[0001] The present invention relates to the field of sanitation vehicles, and in particular to a compression operation motion control system and method for a compression mechanism. Background Art

[0002] Currently, existing compression mechanisms in domestic garbage trucks typically use multiple sets of position sensors to determine the position of scrapers and slides to control compression operations. Some also rely on time-based control to control the duration of the scraper and slide assembly's movement. However, the use of multiple position sensors has drawbacks such as multiple fault points, a high failure rate, and inaccurate control when compression force increases. Meanwhile, time-based control has drawbacks such as long operation times and inaccurate control. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a compression mechanism compression operation motion control system that efficiently controls and improves compression force and compression time.

[0004] The compression operation motion control system of the compression mechanism of the present invention adopts the following technical solution: it includes a compression mechanism and a control system, wherein the garbage compression mechanism is arranged at one end of the garbage inlet; the garbage compression mechanism includes a slide plate, a slide plate oil cylinder, a scraper and a scraper oil cylinder; slide grooves are provided on both sides of the garbage inlet along the axis direction of the carriage; the slide plate is slidably connected in the slide grooves, the movable end of the slide plate oil cylinder is connected to the slide plate, and the fixed end is fixed to the top of the carriage; the end of the slide plate facing away from the garbage inlet is hinged to the bottom of the scraper plate, the movable end of the scraper oil cylinder is hinged to the top of the scraper plate, and the fixed end of the scraper oil cylinder is fixed to the slide plate, and the control system includes:

[0005] Controller: used for data signal reception, processing and execution signal output;

[0006] Timer: used to record the output duration of the measured execution signal and transmit the relevant data to the controller;

[0007] Pressure sensor 1 is installed in the cylinder pressure oil circuit control valve group or oil circuit of the slide cylinder, which is used to monitor the hydraulic system pressure of the slide cylinder and send signals to the controller;

[0008] Pressure sensor 2 is installed in the cylinder pressure oil circuit control valve group or oil circuit of the scraper oil cylinder, which is used to monitor the hydraulic system pressure of the scraper oil cylinder and transmit signals to the controller;

[0009] The controller is electrically connected to the timer, the first pressure sensor, the second pressure sensor, the slide plate oil cylinder and the scraper oil cylinder respectively.

[0010] A control method for a compression mechanism compression operation motion control system, using the above-mentioned compression mechanism compression operation motion control system, comprises the following steps:

[0011] S1, set the calibration value P of pressure sensor 1 and pressure sensor 2 C , the calibration value P C Less than the maximum pressure value P of the slide cylinder and scraper cylinder X , set the standard time t0 for the scraper pressing operation, and set the standard time t3 for the slide plate retracting operation;

[0012] S2, starting the compression mechanism compression operation motion control system, and the controller receives a compression cycle start signal;

[0013] S3, the controller outputs the execution signal to the scraper cylinder, the scraper cylinder contracts, and drives the scraper to rotate upward until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value P C When , pressure sensor 2 outputs a signal to the controller;

[0014] S4, the controller outputs an execution signal to the slide cylinder, the slide cylinder extends, driving the slide to extend horizontally until the pressure sensor detects that the hydraulic system pressure value reaches the calibration value P C When , the pressure sensor outputs a signal to the controller;

[0015] S5. The controller outputs the execution signal to the scraper cylinder and the timer at the same time. The timer starts timing, the scraper cylinder extends, drives the scraper to press down, and compresses the garbage until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value P. C When , the timer stops timing, and the timer records the duration as t1 and transmits it to the controller;

[0016] S6, the controller compares the time t1 with the standard time t0 of the scraper pressing operation. If t1>t0, it executes S7; otherwise, the controller outputs the execution signal to the scraper cylinder and the timer at the same time. The timer starts timing, the scraper cylinder extends, and drives the scraper to continue to press down, further compressing the garbage until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the maximum pressure value P x , the timer stops timing, and the timer records the duration as t2, and executes S7;

[0017] S7, the controller outputs the execution signal to the slide cylinder and the timer at the same time, the timer starts timing, the slide cylinder contracts, and drives the slide to retract horizontally to compress the garbage until the pressure sensor detects that the pressure value of the hydraulic system reaches the calibration value P C When , the timer stops timing, and the timer records the duration as t4 and transmits it to the controller;

[0018] S8, the controller compares the time t4 with the standard time t3 of the slide retraction operation. If t4>t3, then execute S9; otherwise, the controller outputs an execution signal to the slide cylinder and the timer. The timer starts timing, and the slide cylinder contracts, driving the slide to continue to retract and compress the garbage horizontally until the pressure sensor detects that the hydraulic system pressure value reaches the maximum pressure value P x , the timer stops timing, and the control is extended to the duration t5, and S9 is executed;

[0019] S9, the controller outputs an execution signal to the scraper cylinder to retract, driving the scraper to rotate upward until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value P C , pressure sensor 2 outputs a signal to the controller, and the controller ends the compression cycle.

[0020] Furthermore, the step S9 also includes that when the pressure sensor 2 outputs a signal to the controller, the controller outputs an execution signal to the slide cylinder to extend, driving the slide to extend horizontally until the pressure sensor 1 detects that the pressure value of the hydraulic system reaches the calibration value P C , the pressure sensor outputs a signal to the controller, and the controller ends the compression cycle.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the compression operation motion control system of the compression mechanism is adopted, which eliminates multiple sets of position sensors, greatly reduces the number of sensors, reduces failure points, and realizes accurate and efficient control of the motion process, thereby improving the compression force and compression time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings described herein are used to provide a further understanding of the present application, in which:

[0023] Figure 1 Schematic diagram of the compression mechanism structure of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the control system module structure of an embodiment of the present invention;

[0025] Figure 3 The operating motion of the compression mechanism of the embodiment of the present invention;

[0026] Figure 4 Schematic diagram of a control flow chart of a control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] See also Figure 1-4As shown in one embodiment, a compression operation motion control system of a compression mechanism includes a compression mechanism and a control system. The garbage compression mechanism is arranged at one end of the garbage inlet; the garbage compression mechanism includes a slide 44, a slide cylinder 41, a scraper 45 and a scraper cylinder 43; slide grooves 42 are provided on both sides of the garbage inlet along the axis direction of the carriage; the slide 44 is slidably connected in the slide groove 42, the movable end of the slide cylinder 41 is connected to the slide 44, and the fixed end is fixed to the top of the carriage; the end of the slide 44 away from the garbage inlet is hinged to the bottom of the scraper 45, the movable end of the scraper cylinder 43 is hinged to the top of the scraper 45, and the fixed end of the scraper cylinder 43 is fixed to the slide 44, and the control system includes:

[0028] Controller 10: used for receiving, processing and outputting data signals;

[0029] Timer 20: used to record the output duration of the measured execution signal and transmit relevant data to the controller 10;

[0030] A pressure sensor 31 is provided on the cylinder pressure oil circuit control valve group or the oil circuit of the slide cylinder 41, and is used to monitor the hydraulic system pressure of the slide cylinder 41 and transmit a signal to the controller 10;

[0031] The second pressure sensor 32 is provided on the cylinder pressure oil circuit control valve group or the oil circuit of the scraper oil cylinder 43, and is used to monitor the hydraulic system pressure of the scraper oil cylinder 43 and transmit a signal to the controller 10;

[0032] The controller 10 is electrically connected to the timer 20 , the pressure sensor 1 31 , the pressure sensor 2 32 , the slide plate cylinder 41 and the scraper cylinder 43 .

[0033] A control method for a compression mechanism compression operation motion control system, using the above-mentioned compression mechanism compression operation motion control system, comprises the following steps:

[0034] S1, set the calibration value P of pressure sensor 1 31 and pressure sensor 2 32 C , the calibration value P C Less than the maximum pressure value P of the slide cylinder 41 and the scraper cylinder 43 X , set the standard time t0 for the scraper 45 to press down, and set the standard time t3 for the slide plate 44 to retract;

[0035] S2, starting the compression mechanism compression operation motion control system, the controller 10 receives a compression cycle start signal;

[0036] S3, the controller 10 outputs an execution signal to the scraper cylinder 43, the scraper cylinder 43 contracts, and drives the scraper 45 to rotate upward until the pressure sensor 2 32 detects that the pressure value of the hydraulic system reaches the calibration value P CWhen , the pressure sensor 2 32 outputs a signal to the controller 10;

[0037] S4, the controller 10 outputs an execution signal to the slide cylinder 41, the slide cylinder 41 extends, driving the slide 44 to extend horizontally until the pressure sensor 31 detects that the pressure value of the hydraulic system reaches the calibration value P C When , the pressure sensor 31 outputs a signal to the controller 10;

[0038] S5, the controller 10 outputs the execution signal to the scraper cylinder 43 and the timer 20 at the same time, the timer 20 starts timing, the scraper cylinder 43 extends, drives the scraper 45 to press down, and compresses the garbage until the pressure sensor 2 32 detects that the pressure value of the hydraulic system reaches the calibration value P C When , the timer 20 stops timing, and the timer 20 records the duration as t1 and transmits it to the controller 10;

[0039] S6, the controller 10 compares the time t1 with the standard time t0 of the scraper pressing operation. If t1>t0, then execute S7; otherwise, the controller 10 simultaneously outputs an execution signal to the scraper cylinder 43 and the timer 20, the timer 20 starts timing, the scraper cylinder 43 extends, and drives the scraper 45 to continue to press down, further compressing the garbage until the pressure sensor 2 32 detects that the pressure value of the hydraulic system reaches the maximum pressure value P x , timer 20 stops timing, at this time timer 20 records the duration as t2, and executes S7;

[0040] S7, the controller 10 simultaneously outputs an execution signal to the slide cylinder 41 and the timer 20, the timer 20 starts timing, the slide cylinder 41 contracts, and drives the slide 44 to retract horizontally to compress the garbage until the pressure sensor 31 detects that the pressure value of the hydraulic system reaches the calibration value P C When t4 is reached, the timer 20 stops timing. At this time, the timer 20 records the duration as t4 and transmits it to the controller 10.

[0041] S8, the controller 10 compares the time t4 with the standard time t3 of the slide retraction operation. If t4>t3, then execute S9; otherwise, the controller 10 outputs an execution signal to the slide cylinder 41 and the timer 20. The timer 20 starts timing, and the slide cylinder 41 contracts, driving the slide 44 to continue to retract and compress the garbage horizontally until the pressure sensor 31 detects that the pressure value of the hydraulic system reaches the maximum pressure value P x , timer 20 stops timing, and the control is extended to time t5, and S9 is executed;

[0042] S9, the controller 10 outputs an execution signal to the scraper cylinder 43 to retract, driving the scraper 45 to rotate upward until the pressure sensor 2 32 detects that the pressure value of the hydraulic system reaches the calibration value PC , the pressure sensor 2 32 outputs a signal to the controller 10, and the controller 10 ends the compression cycle.

[0043] Furthermore, the step S9 also includes that when the pressure sensor 2 32 outputs a signal to the controller 10, the controller 10 outputs an execution signal to the slide cylinder 41 to extend, driving the slide 44 to extend horizontally until the pressure sensor 1 31 detects that the pressure value of the hydraulic system reaches the calibration value P C , the pressure sensor 31 outputs a signal to the controller 10, and the controller 10 ends the compression cycle.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A control method for a compression mechanism compression operation motion control system, the control system comprising a compression mechanism and a control system, the compression mechanism being disposed at one end of a garbage inlet; the compression mechanism comprising a slide plate, a slide plate cylinder, a scraper plate, and a scraper plate cylinder; slide grooves being provided on both sides of the garbage inlet along the axis of the carriage; the slide plate being slidably connected within the slide grooves, the slide plate cylinder having a movable end connected to the slide plate and a fixed end fixed to the top of the carriage; the slide plate having an end facing away from the garbage inlet being hinged to the bottom of the scraper plate, the scraper plate cylinder having a movable end hinged to the top of the scraper plate, and the scraper plate cylinder having a fixed end fixed to the slide plate, characterized in that: The control system includes: Controller: used for data signal reception, processing and execution signal output; Timer: used to record the output duration of the measured execution signal and transmit the relevant data to the controller; Pressure sensor 1 is installed in the cylinder pressure oil circuit control valve group or oil circuit of the slide cylinder, which is used to monitor the hydraulic system pressure of the slide cylinder and send signals to the controller; Pressure sensor 2 is installed in the cylinder pressure oil circuit control valve group or oil circuit of the scraper oil cylinder, which is used to monitor the hydraulic system pressure of the scraper oil cylinder and transmit signals to the controller; The controller is electrically connected to the timer, pressure sensor 1, pressure sensor 2, slide plate cylinder and scraper cylinder respectively; The control method comprises the following steps: S1. Set the calibration value PC of pressure sensor 1 and pressure sensor 2, which is less than the maximum pressure value PX of the slide cylinder and the scraper cylinder, and set the standard time t0 for the scraper pressing operation and the standard time t3 for the slide retracting operation; S2, starting the compression mechanism compression operation motion control system, and the controller receives a compression cycle start signal; S3, the controller outputs an execution signal to the scraper cylinder, the scraper cylinder contracts, and drives the scraper to rotate upward until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value PC, and the pressure sensor 2 outputs a signal to the controller; S4, the controller outputs an execution signal to the slide cylinder, the slide cylinder extends, and drives the slide to extend horizontally until the pressure sensor detects that the pressure value of the hydraulic system reaches the calibration value PC, and the pressure sensor outputs a signal to the controller; S5. The controller simultaneously outputs an execution signal to the scraper cylinder and the timer. The timer starts timing, and the scraper cylinder extends, driving the scraper to press down and compress the garbage. When the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value PC, the timer stops timing. At this time, the timer records the duration as t1 and transmits it to the controller. S6. The controller compares the time t1 with the standard time t0 of the scraper pressing operation. If t1>t0, S7 is executed. Otherwise, the controller simultaneously outputs an execution signal to the scraper cylinder and the timer. The timer starts timing, and the scraper cylinder extends, driving the scraper to continue to press down, further compressing the garbage until the pressure sensor 2 detects that the hydraulic system pressure value reaches the maximum pressure value Px. The timer stops timing, and the timer records the time t2, and S7 is executed. S7. The controller simultaneously outputs an execution signal to the slide cylinder and the timer. The timer starts timing, and the slide cylinder contracts, driving the slide to retract horizontally to compress the garbage. When the pressure sensor detects that the pressure value of the hydraulic system reaches the calibration value PC, the timer stops timing. At this time, the timer records the duration as t4 and transmits it to the controller. In step S8, the controller compares the duration t4 with the standard time t3 for the slide retraction operation. If t4 > t3, then step S9 is executed. Otherwise, the controller outputs an execution signal to the slide cylinder and the timer. The timer starts timing, and the slide cylinder contracts, driving the slide to continue to retract horizontally and compress the garbage until the pressure sensor detects that the hydraulic system pressure reaches the maximum pressure value Px. The timer stops timing, and the control is extended to the duration t5, and step S9 is executed. S9, the controller outputs an execution signal to the scraper cylinder to contract, driving the scraper to rotate upward until the pressure sensor 2 detects that the pressure value of the hydraulic system reaches the calibration value PC. The pressure sensor 2 outputs a signal to the controller, and the controller ends the compression cycle.

2. The control method of the compression mechanism compression operation motion control system according to claim 1, characterized in that: The step S9 also includes when the pressure sensor 2 outputs a signal to the controller, the controller outputs an execution signal to the slide cylinder to extend, driving the slide to extend horizontally, until the pressure sensor 1 detects that the pressure value of the hydraulic system reaches the calibration value PC, the pressure sensor 1 outputs a signal to the controller, and the controller ends the compression cycle.

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