Control method of self-adjusting buffering barrel blocking device

Abstract

The invention relates to the technical field of environmental sanitation equipment, in particular to a control method of a self-adjusting buffering can blocking device, and aims to solve the problem that most of can blocking mechanisms of a current side feeding garbage truck are provided with fixed can turning force, so that when garbage cans with different weights are turned over, the garbage cans cannot be turned over, and the garbage cans cannot be turned over. The garbage can is repeatedly collided, so that the garbage can is damaged; through real-time weighing and intelligent control, the efficiency and accuracy of garbage can overturning operation are remarkably improved, the output of an oil pump and the flow of hydraulic oil are automatically adjusted according to the weight of the garbage can, dynamic adjustment of the can overturning speed is achieved, the phenomenon of too high speed or too low speed caused by the weight difference in the can overturning process is avoided, impact and abrasion of equipment are reduced, and the service life of the equipment is prolonged. The service life is prolonged; in addition, operation energy consumption is effectively reduced, manual intervention is reduced, the automation degree and safety of garbage collection operation are improved, and the overall working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sanitation machinery and equipment, and in particular to a control method for a self-adjusting buffer barrel device. Background Art

[0002] In the process of urban garbage collection and transportation, garbage collection equipment plays an important role; side-loading garbage trucks, as one of the garbage collection equipment, load materials through a side-lifting bucket mechanism. In order to prevent the bucket from falling, most models are equipped with a bucket-blocking mechanism, but this mechanism mostly has a fixed bucket-turning force. Therefore, when dealing with garbage cans of different weights, the same bucket-turning force is used. Due to the different weights of the garbage cans, the garbage cans will be repeatedly bumped against, thereby damaging the garbage cans and greatly reducing their lifespan. At the same time, for lighter garbage cans, excessive force may cause garbage to overflow from the garbage cans. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the bucket blocking mechanism of the front side loading garbage truck is mostly provided with a fixed bucket turning force, which causes the garbage bins to collide repeatedly and thus damage the garbage bins when handling garbage bins of different weights.

[0004] In order to solve the technical problem, the technical solution adopted by the present invention is:

[0005] In a first aspect, a self-adjusting buffer stopper device and a control method are provided, comprising the following steps:

[0006] Get trash bin weighing data ;

[0007] like < < ,in is the first threshold, is the second threshold, the adjustment mode is executed, and according to the first threshold , weighing data and the preset engine speed Calculate the target engine speed According to the target speed Control the engine speed;

[0008] According to the target engine speed Calculate the oil pump input speed; calculate the oil pump flow rate based on the oil pump input speed ;

[0009] If the target speed Below engine idle speed , according to the target speed and engine idle speed Calculate the throttling coefficient and issue a command to control the electronically controlled valve group to throttle according to the throttling coefficient; if the target speed is not lower than the engine idle speed, the throttling coefficient is 1, and the electronically controlled valve group does not throttle;

[0010] According to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ; According to the flow after throttling of the electric control valve group Calculate the extension time required for the oil cylinder of the barrel turning mechanism; and control the extension of the oil cylinder of the barrel turning mechanism according to the required extension time.

[0011] Further, according to the first threshold , weighing data and the preset engine speed Calculate the target engine speed ,include:

[0012] ;

[0013] in, The preset engine speed.

[0014] Furthermore, the oil pump input speed n is calculated according to the target speed, including:

[0015] ;

[0016] Among them, r is the speed ratio.

[0017] Furthermore, the flow rate of the oil pump is calculated according to the input speed of the oil pump ,include:

[0018] ;

[0019] Where q is the oil pump displacement, is the volumetric efficiency of the oil pump.

[0020] Furthermore, according to the target speed and engine idle speed Calculate the throttling factor ,include:

[0021] ;

[0022] in, is the correction factor.

[0023] Furthermore, according to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ,include:

[0024] ;

[0025] Furthermore, according to the flow rate after throttling by the electric control valve group Calculate the extension time required for the cylinder of the barrel turning mechanism ,include:

[0026] ;

[0027] Wherein, V is the rodless chamber volume of the barrel turning mechanism cylinder.

[0028] Furthermore, if the weighing data ≤ , execute the normal mode, the target speed of the engine , and the preset engine speed Greater than the engine idle speed;

[0029] like > , execute braking mode, issue an alarm and stop the engine.

[0030] In a second aspect, a main console is provided, comprising a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the method according to the first aspect.

[0031] In a third aspect, a self-adjusting buffer garbage truck is characterized in that it includes the main control console of the second aspect, and further includes:

[0032] Weighing module: used to detect the weighing data of the trash can and upload it to the main console.

[0033] The beneficial effects of the present invention are as follows:

[0034] The present invention significantly improves the efficiency and accuracy of garbage bin turning operations through real-time weighing and intelligent control. The system automatically adjusts the oil pump output and hydraulic oil flow according to the weight of the garbage bin, realizes dynamic adjustment of the bin turning speed, avoids the phenomenon of over-fast or over-slow turning caused by weight difference during bin turning, reduces impact and wear of equipment, and extends service life. In addition, the present application effectively reduces operating energy consumption, reduces manual intervention, improves the degree of automation and safety of garbage collection operations, and improves overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0037] Figure 1 is a flow chart of the control method of the present invention;

[0038] Figure 2 A structural diagram of a garbage truck provided in Embodiment 1 of the present invention;

[0039] Figure 3 This is a structural diagram of the garbage truck provided by the first embodiment of the present invention from another perspective.

[0040] In the figure: 1. Cylinder of the barrel turning mechanism; 2. Main control console; 3. Oil pipe; 4. Oil pump; 5. Hydraulic oil tank; 6. Electric control valve group; 7. Weighing module; 8. Trash can. DETAILED DESCRIPTION

[0041] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] Embodiment 1:

[0043] A self-adjusting buffer garbage truck includes a main control console and a weighing module for detecting the weighing data of a garbage bin and uploading it to the main control console. The main control console includes a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the control method of the self-adjusting buffer bin device described below.

[0044] In some embodiments, Figure 2 and Figure 3 As shown, a self-adjusting buffer garbage truck includes a barrel tipping mechanism cylinder, a main control console, an oil pipe, an oil pump, a hydraulic oil tank, an electric control valve group, a weighing module and a garbage barrel.

[0045] The oil cylinder of the barrel-turning mechanism is connected to the trash can and is used to complete the turning and dumping operations of the trash can; the weighing module is installed on the oil cylinder of the barrel-turning mechanism and is used to weigh the trash can before turning it over and transmit the weight data to the main control console; the main control console calculates the target speed of the engine according to the data provided by the weighing module, and controls the operation of the oil pump through an electric control signal. The oil pump draws hydraulic oil from the hydraulic oil tank and transmits the hydraulic oil to the electric control valve group through the oil pipe. The electric control valve group adjusts the flow rate of the hydraulic oil according to the instructions of the main control console, and finally transmits the hydraulic oil to the oil cylinder of the barrel-turning mechanism to drive the barrel-turning action, while realizing the adaptive buffering function to ensure a smooth barrel-turning process.

[0046] Embodiment 2:

[0047] On the basis of the first embodiment, this embodiment provides a control method of a self-adjusting buffer stopper device, comprising the following steps:

[0048] Get trash bin weighing data ;

[0049] like < < ,in is the first threshold, is the second threshold, the adjustment mode is executed, and according to the first threshold , weighing data and the preset engine speed Calculate the target engine speed According to the target speed Control the engine speed;

[0050] According to the target engine speed Calculate the oil pump input speed; calculate the oil pump flow rate based on the oil pump input speed ;

[0051] If the target speed Below engine idle speed , according to the target speed and engine idle speed Calculate the throttling coefficient and issue a command to control the electronically controlled valve group to throttle according to the throttling coefficient; if the target speed is not lower than the engine idle speed, the throttling coefficient is 1, and the electronically controlled valve group does not throttle;

[0052] According to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ; According to the flow after throttling of the electric control valve group Calculate the extension time required for the oil cylinder of the barrel turning mechanism; and control the extension of the oil cylinder of the barrel turning mechanism according to the required extension time.

[0053] In some embodiments, according to the first threshold , weighing data and the preset engine speed Calculate the target engine speed ,include:

[0054] ;

[0055] in, The preset engine speed.

[0056] The oil pump is mechanically connected to the engine, has the same speed as the engine, and draws hydraulic oil from the hydraulic oil tank. The oil pump delivers the hydraulic oil to the electronically controlled valve group through the oil pipe to provide a corresponding flow rate. Therefore, in some embodiments, the oil pump input speed n is calculated according to the target speed, including:

[0057] ;

[0058] Among them, r is the speed ratio.

[0059] In some embodiments, the flow rate of the oil pump is calculated based on the oil pump input speed. ,include:

[0060] ;

[0061] Where q is the oil pump displacement, is the volumetric efficiency of the oil pump.

[0062] In some embodiments, according to the target speed and engine idle speed Calculate the throttling factor ,include:

[0063] ;

[0064] in, is the correction factor. Between 0.9-0.95.

[0065] In some embodiments, according to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ,include:

[0066] .

[0067] In some embodiments, the flow rate after throttling by the electric control valve group Calculate the extension time required for the cylinder of the barrel turning mechanism ,include:

[0068] ;

[0069] Wherein, V is the rodless chamber volume of the barrel turning mechanism cylinder.

[0070] In some other embodiments, the control method of the self-adjusting buffer barrel device further includes:

[0071] If the weighing data ≤ , execute the normal mode, the target speed of the engine , and the preset engine speed Greater than the engine idle speed;

[0072] like > , execute braking mode, issue an alarm and stop the engine.

[0073] In some embodiments, the first threshold 120KG, the second threshold It weighs 350KG.

[0074] Specific application examples:

[0075] In this application example, the trash can Weight 200kg, preset speed =1200rpm, set the first threshold 120KG, the second threshold It weighs 350KG.

[0076] Then the target speed =120 / 200*1200=720rpm.

[0077] Set the engine idle speed at this time is 700rpm. Since 720>700, the speed ratio is set to 1.05, that is, the oil pump input speed is n=720 / 1.05=686rpm;

[0078] The oil pump displacement is set to q = 25ml / r, and the volumetric efficiency =0.92, then the oil pump flow Q1=686*25*0.92 / 1000=15.4 L / min;

[0079] The rodless chamber volume of the barrel turning mechanism cylinder is V=1.1L, and the extension time of the barrel turning mechanism cylinder is s=60*2*1.1 / 15.4=8.6s.

[0080] Similarly, for another case,

[0081] If the engine idle speed is 800rpm. Since 720<800, the speed ratio is set to 1.05, that is, the oil pump input speed is n=800 / 1.05=762rpm;

[0082] The oil pump displacement is set to q = 25ml / r, and the volumetric efficiency =0.92, then the oil pump flow Q2=762*25*0.92 / 1000=17.5 L / min;

[0083] At this time, the electronically controlled valve group is throttling, and the correction coefficient δ=0.95, the throttling coefficient =1 / (800 / 720)*0.95=0.855;

[0084] The flow rate reaching the oil cylinder of the barrel turning mechanism is Q3=Q2*0.855=17.5*0.855=15L / min;

[0085] Set the rodless chamber volume of the barrel turning mechanism cylinder to V=1.1L, and the extension time of the barrel turning mechanism cylinder s=60*2*1.1 / 15=8.8s

[0086] Embodiment three:

[0087] On the basis of the second embodiment, a main console includes a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the method.

[0088] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for a self-adjusting buffer barrel device, characterized in that: The following steps are involved: Get trash bin weighing data ; like < < ,in is the first threshold, is the second threshold, the adjustment mode is executed, and according to the first threshold , weighing data and the preset engine speed Calculate the target engine speed According to the target speed Control the engine speed; According to the target engine speed Calculate the oil pump input speed; calculate the oil pump flow rate based on the oil pump input speed ; If the target speed Below engine idle speed , according to the target speed and engine idle speed Calculate the throttling coefficient and issue a command to control the electronically controlled valve group to throttle according to the throttling coefficient; if the target speed is not lower than the engine idle speed, the throttling coefficient is 1, and the electronically controlled valve group does not throttle; According to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ; According to the flow rate after throttling by the electric control valve group Calculate the extension time required for the oil cylinder of the barrel turning mechanism; and control the extension of the oil cylinder of the barrel turning mechanism according to the required extension time.

2. The control method of the self-adjusting buffer barrel device according to claim 1, characterized in that: According to the first threshold , weighing data and the preset engine speed Calculate the target engine speed ,include: ； in, The preset engine speed.

3. The control method of the self-adjusting buffer barrel device according to claim 1 is characterized in that: Calculate the oil pump input speed n according to the target speed, including: ； Among them, r is the speed ratio.

4. The control method of the self-adjusting buffer barrel device according to claim 3 is characterized in that: Calculate the oil pump flow rate based on the oil pump input speed ,include: ； Where q is the oil pump displacement, is the volumetric efficiency of the oil pump.

5. The control method of the self-adjusting buffer barrel device according to claim 1 is characterized in that: According to the target speed and engine idle speed Calculate the throttling factor ,include: ； in, is the correction factor.

6. A control method for a self-adjusting buffer barrel device according to claim 5, characterized in that: According to the flow rate of the oil pump The flow rate after throttling of the electric control valve group is calculated by the throttling coefficient ,include: 。 7. The control method of the self-adjusting buffer barrel device according to claim 1 is characterized in that: According to the flow rate after throttling by the electric control valve group Calculate the extension time required for the cylinder of the barrel turning mechanism ,include: ； Wherein, V is the rodless chamber volume of the barrel turning mechanism cylinder.

8. The control method of the self-adjusting buffer barrel device according to claim 1 is characterized in that: Also includes: If the weighing data ≤ , execute the normal mode, the target speed of the engine , and the preset engine speed Greater than the engine idle speed; like > , execute braking mode, issue an alarm and stop the engine.

9. A main console, comprising a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the method according to any one of claims 1 to 8.

10. A self-adjusting buffer garbage truck, characterized in that: The main control console according to claim 9 further comprises: Weighing module: used to detect the weighing data of the trash can and upload it to the main console.

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