Auxiliary tool adjusting system, excavator and control method

Abstract

The invention discloses an auxiliary tool adjusting system, an excavator and a control method, and relates to the technical field of construction equipment. The auxiliary tool adjusting system comprises an information obtaining device, a main valve assembly, a control valve assembly, a pump assembly and a controller. The information acquisition device is used for acquiring the type information and the current gear information of the assistive device connected with the assistive device adjusting system; the main valve assembly is used for being connected with an auxiliary tool and providing hydraulic oil for the auxiliary tool. The pump assembly is used for providing hydraulic oil for the main valve assembly. According to the auxiliary tool adjusting system, the liquid inlet pressure and the liquid inlet flow of the auxiliary tool can be adjusted according to the specific using requirements of the auxiliary tool for different auxiliary tools, the auxiliary tool can work under the standard pressure and the standard flow according to the preset standard pressure and the preset standard flow, the different requirements for the pressure and the flow when the different auxiliary tools are used are met, and the auxiliary tool adjusting system is suitable for popularization and application. The operation speed of the assistive device can be effectively improved, the maximum function of the assistive device is achieved, and meanwhile the service life of the assistive device is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of construction equipment, and more specifically, to an auxiliary tool adjustment system. In addition, the present invention also relates to a control method for an excavator including the auxiliary tool adjustment system and applied to the auxiliary tool adjustment system. Background Art

[0002] Generally speaking, the working device of an excavator is equipped with a bucket for operations such as digging and loading earth or ore. With the development of the market, the working conditions of excavators are becoming more and more diverse, and simple excavation operations are far from meeting the needs of the market. In order to meet the needs of the market, major excavator manufacturers have launched multi-functional auxiliary tools. When the working device of an excavator is equipped with multi-functional auxiliary tools (such as a breaker, hydraulic shears, etc.), the required pressure and flow rate vary greatly depending on the performance of the auxiliary tools. Even for the same type or the same auxiliary tool, the pressure and flow rate required for the auxiliary tool are different in different application scenarios. The existing pressure and flow rate regulation is mostly manually adjusted, or not adjusted at all. This leads to conditions such as the auxiliary tool operating speed being too fast or too slow, affecting the normal operation of the excavator.

[0003] In summary, how to provide an auxiliary tool adjustment system that can perform targeted pressure and flow regulation on different auxiliary tools of an excavator is a problem that currently needs to be urgently solved by those skilled in the art. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an auxiliary tool adjustment system, which can adjust the auxiliary tool's fluid inlet flow and auxiliary tool's fluid inlet pressure according to different auxiliary tools and gear information, so as to achieve targeted pressure and flow adjustment for different auxiliary tools of the excavator.

[0005] Another object of the present invention is to provide a control method for an excavator including the above-mentioned auxiliary implement adjustment system and applied to the above-mentioned auxiliary implement adjustment system.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An assistive device adjustment system, characterized by comprising:

[0008] An information acquisition device, used to acquire information about the type of auxiliary equipment connected to the auxiliary equipment adjustment system and current gear information;

[0009] A main valve assembly, used to connect with the auxiliary tool and provide hydraulic oil for the auxiliary tool; the main valve assembly includes a first relief valve, a second relief valve and a reversing valve, the liquid inlet of the reversing valve is connected to the pump assembly, the liquid return port of the reversing valve is used to connect to the reflux oil tank, the first interface of the reversing valve is connected to the first relief valve, and the second interface of the reversing valve is connected to the second relief valve;

[0010] A control valve assembly, connected to the main valve assembly, and used to control the flow direction of the hydraulic oil in the main valve assembly;

[0011] A pump assembly, used to provide hydraulic oil to the main valve assembly;

[0012] A controller, used for obtaining the standard flow and standard pressure of the auxiliary tool and the hydraulic oil flow direction standard according to the type information of the auxiliary tool; adjusting the opening of the first relief valve and the second relief valve, the program torque value of the pump assembly 1 and the action of the control valve assembly according to the standard pressure, the standard flow, the hydraulic oil flow direction standard and the gear information;

[0013] The first overflow valve, the second overflow valve, and the control valve assembly are all connected to the controller.

[0014] Optionally, an operating handle is also included, and the information acquisition device includes a direction acquisition unit for acquiring the swing direction information of the handle, and the direction acquisition unit transmits the acquired swing direction information to the controller. The controller controls the action of the control valve assembly according to the swing direction information to adjust the flow direction of the hydraulic oil in the main valve assembly.

[0015] Optionally, a testing device is further included, which is connected to the main valve assembly, and includes a first flow detection component for obtaining the liquid inlet flow of the auxiliary tool and a first pressure detection component for obtaining the liquid inlet pressure of the auxiliary tool.

[0016] Optionally, a display device is also included, and the display device is used to display the standard liquid inlet flow rate, real-time liquid inlet flow rate, standard liquid inlet pressure and real-time liquid inlet pressure of the auxiliary tool.

[0017] Optionally, the control valve assembly includes a first solenoid valve and a second solenoid valve; when the first solenoid valve is powered on, the first overflow valve discharges oil and the second overflow valve returns oil; when the second solenoid valve is powered on, the first overflow valve returns oil and the second overflow valve discharges oil.

[0018] Optionally, the information acquisition device includes a touch screen, and the touch screen is provided with a virtual button for the type of auxiliary tool and a virtual button for the gear position.

[0019] An excavator comprises the auxiliary tool adjustment system described in any one of the above items.

[0020] A control method is applied to any of the above-mentioned auxiliary tool adjustment systems, the control method comprising:

[0021] Obtain information about the type of auxiliary equipment connected to the auxiliary equipment adjustment system and the current gear position;

[0022] Obtaining standard flow information, standard pressure information and hydraulic oil flow direction standard of the auxiliary tool according to the type information of the auxiliary tool;

[0023] Controlling the action of the control valve assembly according to the type information of the auxiliary tool, so that the flow direction of the hydraulic oil in the main valve assembly matches the hydraulic oil flow direction standard of the auxiliary tool;

[0024] Controlling and adjusting the program torque value of the pump assembly according to the standard flow rate and the gear position information so that the liquid inlet flow rate of the auxiliary tool is the standard flow rate;

[0025] The openings of the first relief valve and the second relief valve are controlled and adjusted according to the standard pressure and the gear information so that the liquid inlet pressure of the auxiliary tool is the standard pressure.

[0026] Optionally, the auxiliary tool regulating system further comprises a testing device and an engine, wherein the testing device is connected to the main valve assembly, and the testing device comprises a first flow detection component for obtaining the inlet flow rate of the auxiliary tool and a first pressure detection component for obtaining the inlet pressure of the auxiliary tool;

[0027] After obtaining the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information, the method includes:

[0028] Obtaining a preset pressure range and a preset flow range corresponding to the auxiliary tool according to the type information of the auxiliary tool;

[0029] Presetting a first test torque value of the engine of the auxiliary tool adjustment system and a second test torque value of the pump assembly according to the gear information;

[0030] Adjusting the outlet pressure of the pump assembly, and recording the liquid inlet flow rate of the auxiliary tool and the liquid inlet pressure of the auxiliary tool corresponding to the outlet pressure;

[0031] Determine whether the auxiliary tool's liquid inlet flow rate is within the preset flow range and the auxiliary tool's liquid inlet pressure is within the preset pressure range at the same time; if so, the auxiliary tool's liquid inlet flow rate is standard flow information, and the auxiliary tool's liquid inlet pressure is standard pressure information; if not, reset the first test torque value of the engine of the auxiliary tool adjustment system and the second test torque value of the pump assembly; and return to the step of adjusting the outlet pressure of the pump assembly and recording the auxiliary tool's liquid inlet flow rate and the auxiliary tool's liquid inlet pressure corresponding to the outlet pressure.

[0032] Optionally, the assistive device adjustment system further includes an operating handle, and the information acquisition device includes a direction acquisition unit for acquiring the yaw direction information of the handle; and the control method further includes:

[0033] Obtaining the swing direction information of the operating handle;

[0034] The control valve assembly is controlled to act according to the yaw direction information to adjust the flow direction of the hydraulic oil in the main valve assembly.

[0035] The present invention provides an auxiliary tool adjustment system, comprising an information acquisition device, a main valve assembly, a control valve assembly, a pump assembly and a controller; wherein the information acquisition device is used to acquire the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information; the main valve assembly is used to connect with the auxiliary tool and provide hydraulic oil for the auxiliary tool; the main valve assembly comprises a first relief valve, a second relief valve and a reversing valve, the liquid inlet of the reversing valve is connected to the pump assembly, the liquid return port of the reversing valve is used to connect to the reflux oil tank, the first interface of the reversing valve is connected to the first relief valve, the reversing valve The second interface is connected to the second overflow valve; the control valve assembly is connected to the main valve assembly to control the flow direction of the hydraulic oil in the main valve assembly; the pump assembly is used to provide hydraulic oil to the main valve assembly; the controller is used to obtain the standard flow and standard pressure of the auxiliary tool and the hydraulic oil flow direction standard according to the type information of the auxiliary tool; the opening of the first overflow valve and the second overflow valve, the programmed torque value of the pump assembly and the action of the control valve assembly are adjusted according to the standard pressure, standard flow, hydraulic oil flow direction standard and gear information; the first overflow valve, the second overflow valve and the control valve assembly are all connected to the controller.

[0036] In actual use, since the auxiliary tool adjustment system can be connected to different types of auxiliary tools, in actual use, first, it is necessary to obtain the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information, and then obtain the standard flow information, standard pressure information and hydraulic oil flow direction standard of the auxiliary tool according to the type information of the auxiliary tool; and control the action of the control valve assembly according to the type information of the auxiliary tool, so that the flow direction of the hydraulic oil in the main valve assembly matches the hydraulic oil flow direction standard of the auxiliary tool; control and adjust the program torque value of the pump assembly according to the standard flow and gear information, so that the liquid inlet flow of the auxiliary tool is the standard flow; control and adjust the opening of the first overflow valve and the second overflow valve according to the standard pressure and gear information, so that the liquid inlet pressure of the auxiliary tool is the standard pressure.

[0037] In the present invention, for different auxiliary tools, the liquid inlet pressure and liquid inlet flow of the auxiliary tools can be adjusted according to the specific use requirements of the auxiliary tools, and according to the preset standard pressure and standard flow, the auxiliary tools can work under standard pressure and standard flow, meeting the different requirements of pressure and flow when different auxiliary tools are used, which can effectively improve the operating speed of the auxiliary tools, maximize the role of the auxiliary tools, and extend the service life of the auxiliary tools.

[0038] In addition, the present invention also provides a control method for an excavator including the above-mentioned auxiliary tool adjustment system and applied to the above-mentioned auxiliary tool adjustment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0040] Figure 1 This is a structural schematic diagram of a specific embodiment 1 of the assistive device adjustment system provided by the present invention;

[0041] Figure 2 This is a structural schematic diagram of a specific embodiment 2 of the assistive device adjustment system provided by the present invention;

[0042] Figure 3 This is a flow chart of the control method provided by the present invention.

[0043] Figure 1-Figure 3 middle:

[0044] 1 is a pump assembly;

[0045] 11 is the main pump, 12 is the gear pump;

[0046] 2 is the main valve assembly;

[0047] 21 is a first overflow valve, 22 is a second overflow valve, and 23 is a reversing valve;

[0048] 3 is a control valve assembly;

[0049] 31 is a first solenoid valve, 32 is a second solenoid valve;

[0050] 4 is a controller;

[0051] 5 is a display device;

[0052] 6 is an operating handle;

[0053] 7 is a test device. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] The core of the present invention is to provide an auxiliary tool adjustment system, which can adjust the auxiliary tool's fluid inlet flow and auxiliary tool's fluid inlet pressure according to different auxiliary tools and gear information, thereby achieving targeted pressure and flow adjustment for different auxiliary tools of the excavator.

[0056] Another object of the present invention is to provide a control method for an excavator including the above-mentioned auxiliary implement adjustment system and applied to the above-mentioned auxiliary implement adjustment system.

[0057] Please refer to Figures 1 to 3 .

[0058] The present specific embodiment provides an auxiliary tool adjustment system, including an information acquisition device, a main valve assembly 2, a control valve assembly 3, a pump assembly 1 and a controller 4; wherein the information acquisition device is used to obtain the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information; the main valve assembly 2 is used to connect with the auxiliary tool and provide hydraulic oil for the auxiliary tool; the main valve assembly 2 includes a first relief valve 21, a second relief valve 22 and a reversing valve 23, the liquid inlet of the reversing valve 23 is connected to the pump assembly 1, the liquid return port of the reversing valve 23 is used to connect to the reflux oil tank, the first interface of the reversing valve 23 is connected to the first relief valve 21, and the reversing valve 23 is connected to the second relief valve 22. The second interface of the valve 23 is connected to the second overflow valve 22; the control valve assembly 3 is connected to the main valve assembly 2, and is used to control the flow direction of the hydraulic oil in the main valve assembly 2; the pump assembly 1 is used to provide hydraulic oil to the main valve assembly 2; the controller 4 is used to obtain the standard flow and standard pressure of the auxiliary tool, and the hydraulic oil flow direction standard according to the type information of the auxiliary tool; adjust the opening of the first overflow valve 21 and the second overflow valve 22, the program torque value of the pump assembly 1 and the action of the control valve assembly 3 according to the standard pressure, standard flow, hydraulic oil flow direction standard and gear information; the first overflow valve 21, the second overflow valve 22, and the control valve assembly 3 are all connected to the controller 4.

[0059] In actual use, since the auxiliary tool adjustment system can be connected to different types of auxiliary tools, in actual use, first, it is necessary to obtain the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information, and then obtain the standard flow information, standard pressure information and hydraulic oil flow direction standard of the auxiliary tool according to the type information of the auxiliary tool; and control the action of the control valve assembly 3 according to the type information of the auxiliary tool, so that the flow direction of the hydraulic oil in the main valve assembly 2 matches the hydraulic oil flow direction standard of the auxiliary tool; control and adjust the program torque value of the pump assembly 1 according to the standard flow and gear information, so that the liquid inlet flow of the auxiliary tool is the standard flow; control and adjust the opening of the first overflow valve 21 and the second overflow valve 22 according to the standard pressure and gear information, so that the liquid inlet pressure of the auxiliary tool is the standard pressure.

[0060] It should be noted that different types of assistive devices of the same type have different type information in this application to facilitate the control of assistive devices of the same type but different types.

[0061] In addition, in order to shorten the adjustment time during actual use, the auxiliary tool needs to be tested before actual use to obtain the program torque value of the pump component 1 corresponding to the standard flow and standard pressure of the auxiliary tool, the torque value of the engine in the auxiliary tool adjustment system, the outlet flow of the pump component 1, the opening degree of the first relief valve 21, the opening degree of the second relief valve 22, the liquid outlet direction of the main valve component 2 and other information under different gear information, and store them in the program torque value of the pump component 1 corresponding to the standard flow and standard pressure of the auxiliary tool, the torque value of the engine in the auxiliary tool adjustment system The torque value, outlet flow of the pump assembly 1, the opening of the first relief valve 21, the opening of the second relief valve 22, the liquid outlet direction of the main valve assembly 2 and other information can be directly adjusted according to the type information and gear information of the auxiliary tool, so that the liquid inlet pressure of the auxiliary tool can be quickly adjusted to the standard pressure, and the liquid inlet flow of the auxiliary tool can be quickly adjusted to the standard flow.

[0062] In this specific embodiment, for different auxiliary tools, the liquid inlet pressure and liquid inlet flow of the auxiliary tool can be adjusted according to the specific use requirements of the auxiliary tool, and according to the preset standard pressure and standard flow, the auxiliary tool can work under standard pressure and standard flow, which meets the different requirements of pressure and flow when different auxiliary tools are used, and can effectively improve the operating speed of the auxiliary tool, maximize the role of the auxiliary tool, and extend the service life of the auxiliary tool.

[0063] In a specific embodiment, the auxiliary tool adjustment system also includes an operating handle 6, and the information acquisition device includes a direction acquisition unit for acquiring the swing direction information of the handle. The direction acquisition unit transmits the acquired swing direction information to the controller 4. The controller 4 controls the action of the control valve assembly 3 according to the swing direction information to adjust the flow direction of the hydraulic oil in the main valve assembly 2.

[0064] In actual use, Figure 1 As shown, specifically, the operating handle 6 may be swung to the right, and the controller 4 controls the main pump 11 to supply oil to the P1 port of the reversing valve 23, and at the same time, through the action of the first solenoid valve 31, the valve core of the reversing valve 23 slides to the left to the left position, and the hydraulic oil circuit supplies oil to the auxiliary tool through the BO port, and at the same time, the oil circuit returns to the AO port; the operating handle 6 may be swung to the left, and the controller 4 controls the main pump 11 to supply oil to the P1 port of the reversing valve 23, and at the same time, through the action of the second solenoid valve 32, the valve core of the reversing valve 23 slides to the right to the right position, and the hydraulic oil circuit supplies oil to the auxiliary tool through the AO port, and at the same time, the oil circuit returns to the BO port.

[0065] Of course, the operating handle 6 may also include deflection in other directions, which is determined according to actual conditions and will not be elaborated here.

[0066] In a specific embodiment, the auxiliary tool adjustment system may further include a testing device 7, which is connected to the main valve assembly 2, and includes a first flow detection component for obtaining the liquid inlet flow of the auxiliary tool and a first pressure detection component for obtaining the liquid inlet pressure of the auxiliary tool.

[0067] In actual use, when encountering a new auxiliary tool, and the database does not store the relevant information corresponding to the auxiliary tool, you can obtain the corresponding relevant values ​​of the auxiliary tool in different gears through experiments. Specifically, the steps are as follows:

[0068] The first step is to obtain the type information of the auxiliary tool and the current gear information;

[0069] The second step is to obtain the preset pressure range and preset flow range of the auxiliary tool according to the type information of the auxiliary tool;

[0070] In the second step, the preset pressure range and preset flow range of the auxiliary tool can be obtained according to the instruction manual of the auxiliary tool.

[0071] The third step is to adjust the first test torque value of the engine in the auxiliary tool adjustment system and adjust the second test torque value of the pump assembly 1;

[0072] Step 4: Record the outlet pressure of the pump assembly 1, the liquid inlet flow rate of the auxiliary tool, and the liquid inlet pressure of the auxiliary tool under the current second test torque value;

[0073] The fifth step is to determine whether the auxiliary tool liquid inlet flow rate is within the preset flow rate range and the auxiliary tool liquid inlet pressure is within the preset pressure range at the same time. If so, record the current first test torque value, the second test torque value, the opening of the first relief valve 21 and the opening of the second relief valve 22; if not, proceed to the next step;

[0074] If the auxiliary device's liquid inlet flow rate is within the preset flow rate range and the auxiliary device's liquid inlet pressure is within the preset pressure range at the same time, then the current auxiliary device's liquid inlet flow rate and auxiliary device's liquid inlet pressure meet the auxiliary device's use requirements, the current auxiliary device's liquid inlet flow rate can be set to the standard flow rate, and the current auxiliary device's liquid inlet pressure can be set to the standard pressure; and record the first test torque value, the second test torque value, the first opening of the first overflow valve 21, and the second opening of the second overflow valve 22 at this time; when the auxiliary device is used again, adjust the engine to the first test torque value, adjust the pump assembly 1 to the second test torque value, adjust the opening of the first overflow valve 21 to the first opening, and adjust the opening of the second overflow valve 22 to the second opening, so that the auxiliary device's liquid inlet flow rate is the standard flow rate and the auxiliary device's liquid inlet pressure is the standard pressure.

[0075] Step 6: readjust the first test torque value of the engine in the auxiliary tool adjustment system, readjust the second test torque value of the pump assembly 1, and return to step 4.

[0076] It should be noted that the above steps are test steps for the same gear information. For different gear information, after adjusting the gear information, the first to sixth steps can be repeated to complete data recording under different gear information, and the relevant data information that meets the requirements can be stored in the database.

[0077] It should be noted that, for different auxiliary tools, the types of auxiliary tools include one-way oil inlet and two-way oil inlet. The hydraulic oil flow direction of the main valve assembly 2 is adjusted specifically according to the type of auxiliary tools.

[0078] In actual use, for different gear information, in the actual execution of the first to sixth steps above, when the auxiliary adjustment system is applied to the excavator, the final calibration of the torque value of each gear requires the following requirements:

[0079] Gear 4 (pressure 100%, flow 100%) meets the performance requirements; gear 5 (pressure 90%, flow 90%) meets the performance requirements; gear 6 (pressure 90%, flow 80%) meets the performance requirements; gear 7 (pressure 80%, flow 70%) meets the performance requirements; gear 8 (pressure 80%, flow 60%) meets the performance requirements; gear 9 (pressure 70%, flow 50%) meets the performance requirements; gear 10 (pressure 60%, flow 40%) meets the performance requirements.

[0080] On the basis of the above embodiment, the auxiliary tool adjustment system may further include a display device 5, which is used to display the standard liquid inlet flow rate, real-time liquid inlet flow rate, standard liquid inlet pressure and real-time liquid inlet pressure of the auxiliary tool.

[0081] During actual use, the display device 5 displays the standard liquid inlet flow, real-time liquid inlet flow, standard liquid inlet pressure and real-time liquid inlet pressure of the auxiliary tool, so that the staff can observe the liquid inlet flow and liquid inlet pressure of the auxiliary tool in a timely manner.

[0082] In a specific embodiment, the control valve assembly 3 may include a first solenoid valve 31 and a second solenoid valve 32; when the first solenoid valve 31 is powered on, the first relief valve 21 discharges oil and the second relief valve 22 returns oil; when the second solenoid valve 32 is powered on, the first relief valve 21 returns oil and the second relief valve 22 discharges oil. By controlling the on and off of the first solenoid valve 31 and the second solenoid valve 32, the oil discharge direction of the control valve assembly 3 may be controlled.

[0083] like Figure 1 , Figure 2As shown, the pump assembly 1 may include a main pump 11 and a gear pump 12. During actual use, the flow rate discharged by the main pump 11 is controlled by the controller 4 to achieve the flow rate required by the auxiliary tool function.

[0084] The information acquisition device may include a touch screen, which is provided with a virtual key for the type of auxiliary tool and a virtual key for the gear position. By touching the virtual keys, the type information of the auxiliary tool and the gear position information can be selected and input.

[0085] It should be noted that in actual use, when the opening adjustment auxiliary device of the first relief valve 21 and the second relief valve 22 is controlled by the controller 4 to adjust the hydraulic pressure, it is generally divided according to the percentage of the minimum pressure to the maximum pressure of the reversing valve 23. If the minimum is 0% and the maximum pressure is 100%, the actual working pressure will be low. We optimize the program and edit the intermediate pressure to 0% and the maximum pressure to 100%, so that it can adapt to the actual working conditions of the excavator. In general, the maximum pressure is the main overflow pressure of the reversing valve 23.

[0086] When the controller 4 controls the flow rate discharged by the main pump 11 to adjust the inlet flow rate of the auxiliary tool, the adjustment here is divided according to the percentage of the minimum displacement to the maximum displacement of the main pump 11. If the minimum displacement is 0% and the maximum displacement is 100%, the actual working flow rate will be low. We optimize the program and edit the middle displacement to 0% and the maximum displacement to 100%, so that it can adapt well to the actual working conditions of the excavator.

[0087] In addition to the above-mentioned auxiliary tool adjustment system, the present invention also provides an excavator including the above-mentioned auxiliary tool adjustment system. For the structures of other parts of the excavator, please refer to the prior art and will not be described in detail herein.

[0088] In addition to the above-mentioned auxiliary tool adjustment system, the present invention also provides a control method for the auxiliary tool adjustment system disclosed in the above-mentioned embodiment, and the control method includes:

[0089] Step S1, obtaining information on the type of auxiliary equipment connected to the auxiliary equipment adjustment system and information on the current gear position;

[0090] Step S2, obtaining standard flow information, standard pressure information and hydraulic oil flow direction standard of the auxiliary tool according to the type information of the auxiliary tool;

[0091] Step S3, controlling the control valve assembly 3 to operate according to the type information of the auxiliary tool, so that the flow direction of the hydraulic oil in the main valve assembly 2 matches the hydraulic oil flow direction standard of the auxiliary tool;

[0092] Step S4, controlling and adjusting the program torque value of the pump assembly 1 according to the standard flow rate and gear position information, so that the liquid inlet flow rate of the auxiliary tool is the standard flow rate;

[0093] Step S5, controlling and adjusting the opening of the first relief valve 21 and the second relief valve 22 according to the standard pressure and the gear position information, so that the liquid inlet pressure of the auxiliary tool is the standard pressure.

[0094] When the auxiliary tool regulating system further includes a testing device 7 and an engine, the testing device 7 is connected to the main valve assembly 2, and the testing device 7 includes a first flow detection component for obtaining the inlet flow of the auxiliary tool and a first pressure detection component for obtaining the inlet pressure of the auxiliary tool; after step S1, it includes:

[0095] Step S11, obtaining a preset pressure range and a preset flow range corresponding to the auxiliary tool according to the type information of the auxiliary tool;

[0096] Step S12, presetting a first test torque value of the engine of the auxiliary tool adjustment system and a second test torque value of the pump assembly 1 according to the gear information;

[0097] Step S13, adjusting the outlet pressure of the pump assembly 1, and recording the auxiliary tool liquid inlet flow rate and the auxiliary tool liquid inlet pressure corresponding to the outlet pressure;

[0098] Step S14, determining whether the auxiliary device's liquid inlet flow rate is within a preset flow range and the auxiliary device's liquid inlet pressure is within a preset pressure range at the same time. If so, the auxiliary device's liquid inlet flow rate is standard flow information, and the auxiliary device's liquid inlet pressure is standard pressure information; if not, re-preset the first test torque value of the engine of the auxiliary device adjustment system and the second test torque value of the pump assembly 1, and return to step S13.

[0099] When the auxiliary tool adjustment system further includes an operating handle 6, and the information acquisition device includes a direction acquisition unit for acquiring the yaw direction information of the handle; the control method further includes:

[0100] Step S101, obtaining the yaw direction information of the operating handle 6;

[0101] Step S102 , controlling the control valve assembly 3 to operate according to the yaw direction information to adjust the flow direction of the hydraulic oil in the main valve assembly 2 .

[0102] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0103] The auxiliary tool adjustment system, excavator and control method provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An auxiliary tool adjustment system, characterized in that: include: An information acquisition device, used to acquire information about the type of auxiliary equipment connected to the auxiliary equipment adjustment system and current gear information; A main valve assembly (2) is used to connect with the auxiliary tool and provide hydraulic oil for the auxiliary tool; the main valve assembly (2) comprises a first overflow valve (21), a second overflow valve (22) and a reversing valve (23); the liquid inlet of the reversing valve (23) is connected to the pump assembly (1); the liquid return port of the reversing valve (23) is used to connect to a return oil tank; the first interface of the reversing valve (23) is connected to the first overflow valve (21); and the second interface of the reversing valve (23) is connected to the second overflow valve (22); A control valve assembly (3), connected to the main valve assembly (2), and used to control the flow direction of the hydraulic oil in the main valve assembly (2); A pump assembly (1) for providing hydraulic oil to the main valve assembly (2); A controller (4) is used to obtain a standard flow rate and a standard pressure of the auxiliary tool and a hydraulic oil flow direction standard according to the type information of the auxiliary tool; and to adjust the openings of the first relief valve (21) and the second relief valve (22), the programmed torque value of the pump assembly (1), and the action of the control valve assembly (3) according to the standard pressure, the standard flow rate, the hydraulic oil flow direction standard, and the gear information; The first overflow valve (21), the second overflow valve (22), and the control valve assembly (3) are all connected to the controller (4).

2. The assistive device adjustment system according to claim 1, characterized in that: It also includes an operating handle (6), the information acquisition device includes a direction acquisition unit for acquiring the swing direction information of the handle, the direction acquisition unit transmits the acquired swing direction information to the controller (4), and the controller (4) controls the operation of the control valve assembly (3) according to the swing direction information to adjust the flow direction of the hydraulic oil in the main valve assembly (2).

3. The assistive device adjustment system according to claim 1, characterized in that: It also includes a testing device (7), which is connected to the main valve assembly (2), and includes a first flow detection component for obtaining the liquid inlet flow of the auxiliary tool and a first pressure detection component for obtaining the liquid inlet pressure of the auxiliary tool.

4. The assistive device adjustment system according to claim 1, characterized in that: It also includes a display device (5), which is used to display the standard liquid inlet flow rate, real-time liquid inlet flow rate, standard liquid inlet pressure and real-time liquid inlet pressure of the auxiliary tool.

5. The assistive device adjustment system according to claim 1, characterized in that: The control valve assembly (3) comprises a first solenoid valve (31) and a second solenoid valve (32); when the first solenoid valve (31) is powered on, the first overflow valve (21) discharges oil and the second overflow valve (22) returns oil; when the second solenoid valve (32) is powered on, the first overflow valve (21) returns oil and the second overflow valve (22) discharges oil.

6. The assistive device adjustment system according to claim 1, characterized in that: The information acquisition device includes a touch screen, and the touch screen is provided with a virtual key for the type of auxiliary tool and a virtual key for the gear position.

7. An excavator, characterized in that: The auxiliary tool adjustment system comprises the auxiliary tool adjustment system according to any one of claims 1 to 6.

8. A control method, characterized in that: Applied to the assistive device adjustment system according to any one of claims 1 to 6 above, the control method comprises: Obtain information about the type of auxiliary equipment connected to the auxiliary equipment adjustment system and the current gear position; Obtaining standard flow information, standard pressure information and hydraulic oil flow direction standard of the auxiliary tool according to the type information of the auxiliary tool; Controlling the operation of the control valve assembly (3) according to the type information of the auxiliary tool, so that the flow direction of the hydraulic oil in the main valve assembly (2) matches the hydraulic oil flow direction standard of the auxiliary tool; Controlling and adjusting the programmed torque value of the pump assembly (1) according to the standard flow rate and the gear position information so that the liquid inlet flow rate of the auxiliary tool is the standard flow rate; The openings of the first relief valve (21) and the second relief valve (22) are controlled and adjusted according to the standard pressure and the gear position information so that the liquid inlet pressure of the auxiliary tool is the standard pressure.

9. The control method according to claim 8, characterized in that: The auxiliary tool regulating system further comprises a testing device (7) and an engine, wherein the testing device (7) is connected to the main valve assembly (2), and the testing device (7) comprises a first flow detection component for obtaining a liquid inlet flow rate of the auxiliary tool and a first pressure detection component for obtaining a liquid inlet pressure of the auxiliary tool; After obtaining the type information of the auxiliary tool connected to the auxiliary tool adjustment system and the current gear information, the method includes: Obtaining a preset pressure range and a preset flow range corresponding to the auxiliary tool according to the type information of the auxiliary tool; Presetting a first test torque value of the engine of the auxiliary tool adjustment system and a second test torque value of the pump assembly (1) according to the gear information; Adjusting the outlet pressure of the pump assembly (1), and recording the liquid inlet flow rate of the auxiliary tool and the liquid inlet pressure of the auxiliary tool corresponding to the outlet pressure; Determine whether the auxiliary tool's liquid inlet flow rate is within the preset flow rate range and the auxiliary tool's liquid inlet pressure is within the preset pressure range at the same time; if so, the auxiliary tool's liquid inlet flow rate is standard flow rate information and the auxiliary tool's liquid inlet pressure is standard pressure information; if not, reset the first test torque value of the engine of the auxiliary tool adjustment system and the second test torque value of the pump assembly (1); and return to the step of adjusting the outlet pressure of the pump assembly (1) and recording the auxiliary tool's liquid inlet flow rate and the auxiliary tool's liquid inlet pressure corresponding to the outlet pressure.

10. The control method according to claim 8, characterized in that: The assistive device adjustment system further comprises an operating handle (6), the information acquisition device comprises a direction acquisition unit for acquiring information on the yaw direction of the handle; and the control method further comprises: Obtaining information on the yaw direction of the operating handle (6); The control valve assembly (3) is controlled to actuate according to the yaw direction information, so as to adjust the flow direction of the hydraulic oil in the main valve assembly (2).

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