Oil level detection control system and engineering machinery

Abstract

The utility model provides an oil level detection control system and engineering machinery. The oil level detection control system is used for the hydraulic oil tank and comprises a liquid level sensor arranged in the hydraulic oil tank and used for detecting a first oil level value of the hydraulic oil tank; the tilt angle sensor is arranged on the hydraulic oil tank and used for detecting the tilt angle of the hydraulic oil tank; and the electric cabinet is connected with the inclination angle sensor and the liquid level sensor and used for receiving the inclination angle and the first oil level value and updating the first oil level value according to the inclination angle to obtain a second oil level value of the hydraulic oil tank.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment control, in particular to an oil level detection control system and engineering machinery. Background Art

[0002] During the operation of engineering machinery such as tunnel boring machines, it is necessary to ensure that the oil level in the hydraulic oil tank inside the tunnel boring machine is at a normal value. Under any circumstances, the oil level in the hydraulic oil tank cannot be lower than this value. However, under the uphill and downhill working conditions of engineering machinery, the existing oil level detection and control system have problems such as inaccurate oil level detection and large oil level error. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] To this end, a first aspect of the utility model is to provide an oil level detection control system.

[0005] The second aspect of the utility model is to provide an engineering machine.

[0006] In view of this, according to the first aspect of the utility model, an oil level detection control system is proposed, which is used for a hydraulic oil tank. The oil level detection control system includes: a liquid level sensor, which is arranged inside the hydraulic oil tank and is used to detect a first oil level value of the hydraulic oil tank; an inclination sensor, which is arranged on the hydraulic oil tank and is used to detect the inclination angle of the hydraulic oil tank; an electronic control box, which is respectively connected to the inclination sensor and the liquid level sensor, and is used to receive the inclination angle and the first oil level value, and update the first oil level value according to the inclination angle to obtain a second oil level value of the hydraulic oil tank.

[0007] The oil level detection and control system in the present technical solution can determine the second oil level value of the hydraulic oil tank through the inclination sensor and the liquid level sensor when the hydraulic oil tank is tilted, thereby ensuring the data accuracy of the second oil level value and reducing the data error of the second oil level value. At the same time, it avoids the situation where the oil level in the hydraulic oil tank is too low, thereby preventing malfunctions of industrial machinery equipped with the hydraulic oil tank.

[0008] According to the second aspect of the utility model, a construction machinery is proposed, including an oil level detection and control system as defined in the first aspect above, and thus has all the beneficial technical effects of the oil level detection and control system defined in the first aspect above, which will not be elaborated herein.

[0009] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0011] Figure 1 One of the schematic diagrams of the oil level detection control system in the embodiment of the utility model is shown;

[0012] Figure 2 The second schematic diagram shows the oil level detection control system in the embodiment of the utility model;

[0013] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0014] 100 oil level detection control system, 101 liquid level sensor, 102 inclination sensor, 103 electric control box, 104 oil pump, 105 programmable logic controller, 106 display screen, 107 hydraulic oil tank, 108 oil pump motor. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0017] Combine the following Figure 1 and Figure 2 , the oil level detection control system and engineering machinery provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0018] like Figure 1 As shown, an oil level detection control system 100 is provided in an embodiment of the utility model, which is used for a hydraulic oil tank 107. The oil level detection control system 100 includes:

[0019] A liquid level sensor 101, which is disposed inside the hydraulic oil tank 107 and is used to detect a first oil level value of the hydraulic oil tank 107;

[0020] The inclination sensor 102 is disposed on the hydraulic oil tank 107 and is used to detect the inclination angle of the hydraulic oil tank 107;

[0021] The electric control box 103 is connected to the inclination sensor 102 and the liquid level sensor 101 respectively, and is used to receive the inclination angle and the first oil level value, and

[0022] The first oil level value is updated according to the tilt angle to obtain a second oil level value of the hydraulic oil tank 107 .

[0023] In this embodiment, an oil level detection control system 100 is provided for detecting the oil level of a hydraulic oil tank 107 , wherein the hydraulic oil tank 107 is a tank for storing fuel, and the oil level detection control system 100 is used to detect the oil level of the hydraulic oil tank 107 .

[0024] Exemplarily, the hydraulic oil tank 107 may be an oil tank of a tunnel boring machine.

[0025] The oil level detection control system 100 includes a liquid level sensor 101 and an inclination sensor 102, wherein the liquid level sensor 101 is arranged inside a hydraulic oil tank 107, and is used to detect a first oil level value of the hydraulic oil tank 107, and the first oil level value is a real-time oil level value of the hydraulic oil tank 107; the inclination sensor 102 is arranged on the hydraulic oil tank 107, and is used to detect an inclination angle of the hydraulic oil tank 107, and the inclination angle is an angle when the hydraulic oil tank 107 is tilted.

[0026] Exemplarily, the inclination sensor 102 may be disposed on an outer surface of the hydraulic oil tank 107 to detect an angle at which the hydraulic oil tank 107 is tilted.

[0027] The oil level detection control system 100 further includes an electric control box 103 , which is connected to the inclination sensor 102 and the liquid level sensor 101 , respectively.

[0028] Exemplarily, the electric control box 103 establishes communication connections with the inclination sensor 102 and the liquid level sensor 101 respectively, thereby being able to transmit data signals.

[0029] The electric control box 103 is used to receive the tilt angle and the first oil level value.

[0030] Exemplarily, the electric control box 103 may receive a first oil level value sent by the liquid level sensor 101 .

[0031] Exemplarily, the electric control box 103 may receive the tilt angle sent by the tilt sensor 102 .

[0032] The electric control box 103 is used to update the first oil level value according to the tilt angle, and determine the second oil level value of the hydraulic oil tank 107 , wherein the second oil level value is the real oil level value of the hydraulic oil tank 107 .

[0033] Exemplarily, data compensation is performed on the first oil level value according to the tilt angle to obtain the second oil level value of the hydraulic oil tank 107 .

[0034] The oil level detection control system 100 in this embodiment can determine the second oil level value of the hydraulic oil tank 107 through the inclination sensor 102 and the liquid level sensor 101 when the hydraulic oil tank 107 is tilted, thereby ensuring the data accuracy of the second oil level value and reducing the data error of the second oil level value, while avoiding the situation where the oil level in the hydraulic oil tank 107 is too low, thereby preventing malfunctions of industrial machinery equipped with the hydraulic oil tank 107.

[0035] In some embodiments, optionally, an oil level detection control system 100 is proposed, and the oil level detection control system 100 further includes:

[0036] An oil pump 104, the oil pump 104 is connected to the electric control box 103;

[0037] The electric control box 103 is also used to control the oil pump 104 to extract the fuel from the hydraulic oil tank 107 .

[0038] In this embodiment, the oil level detection control system 100 further includes an oil pump 104 , wherein the oil pump 104 is used to extract the fuel in the hydraulic oil tank 107 .

[0039] Specifically, the oil pump 104 is connected to the electric control box 103 , and the electric control box 103 is also used to control the oil pump 104 to extract the fuel inside the hydraulic oil tank 107 .

[0040] For example, the oil pump 104 may include an electric motor.

[0041] For example, the oil pump 104 may be driven by an electric motor.

[0042] The oil level detection control system 100 in this embodiment also includes an oil pump 104. The electronic control box 103 can control the oil pump 104 to extract fuel from the hydraulic oil tank 107, thereby ensuring the normal oil supply of the hydraulic oil tank 107 and the normal operation of the industrial machinery installed with the hydraulic oil tank 107.

[0043] In some embodiments, optionally, an oil level detection control system 100 is proposed, in which, when the second oil level value is less than the oil level threshold, the electric control box 103 is used to control the oil pump 104 to stop working and output an oil level too low alarm;

[0044] When the second oil level value is greater than the oil level threshold, the electric control box 103 is used to control the oil pump 104 to maintain operation.

[0045] In this embodiment, when the second oil level value is less than the oil level threshold, the electronic control box 103 can control the oil pump 104 to stop working and output an oil level too low alarm, wherein the oil level threshold is a preset threshold, and the oil level too low alarm is an alarm that the oil level in the hydraulic oil tank 107 is too low.

[0046] Exemplarily, the oil level threshold may be 10% of the total oil level of the hydraulic oil tank 107 .

[0047] When the second oil level value is greater than the oil level threshold, the electric control box 103 can control the oil pump 104 to keep working.

[0048] For example, the electric control box 103 may send an alarm indicating that the oil level is too low to the staff.

[0049] In the oil level detection and control system 100 of the present embodiment, when the second oil level value is less than the oil level threshold, the electronic control box 103 can control the oil pump 104 to stop working and output an oil level too low alarm; when the second oil level value is greater than the oil level threshold, the electronic control box 103 can control the oil pump 104 to keep working, to avoid the hydraulic oil tank 107 having an oil level too low, and to prevent malfunctions of industrial machinery equipped with the hydraulic oil tank 107.

[0050] In some embodiments, optionally, an oil level detection control system 100 is proposed, wherein the electric control box 103 includes a programmable logic controller 105, and the programmable logic controller 105 is used to:

[0051] Obtain the data model corresponding to the tilt angle;

[0052] A second oil level value is determined according to the tilt angle, the first oil level value and the data model.

[0053] In this embodiment, the electric control box 103 includes a programmable logic controller 105, wherein the programmable logic controller 105 is a device capable of realizing control.

[0054] Exemplarily, the programmable logic controller 105 may be a logic controller of an intelligent tunnel boring machine.

[0055] The programmable logic controller 105 is used to obtain a data model corresponding to the tilt angle, and determine the second oil level value according to the tilt angle, the first oil level value and the data model, wherein the data model is a preset formula model.

[0056] Exemplarily, the data model may be an angle-liquid level function relationship model.

[0057] The oil level detection control system 100 in this embodiment, the electrical control box 103 includes a programmable logic controller 105, the programmable logic controller 105 is used to obtain a data model corresponding to the tilt angle, and determine the second oil level value according to the tilt angle, the first oil level value and the data model, thereby ensuring the data accuracy of the second oil level value.

[0058] In some embodiments, optionally, an oil level detection control system 100 is provided, and the programmable logic controller 105 is further used for:

[0059] According to the data model, determine the oil level compensation value corresponding to the tilt angle;

[0060] The first oil level value is updated according to the oil level compensation value to obtain a second oil level value.

[0061] In this embodiment, the programmable logic controller 105 is used to determine the oil level compensation value corresponding to the tilt angle according to the data model, and update the first oil level value according to the oil level compensation value to obtain the second oil level value, wherein the oil level compensation value is the oil level compensation data corresponding to the tilt angle.

[0062] Exemplarily, the oil level compensation value may be a calibration value for updating the first oil level value.

[0063] In the oil level detection control system 100 in this embodiment, the programmable logic controller 105 is used to determine the oil level compensation value corresponding to the tilt angle according to the data model, and update the first oil level value according to the oil level compensation value to obtain the second oil level value, thereby ensuring the data accuracy of the second oil level value.

[0064] In some embodiments, optionally, an oil level detection control system 100 is proposed, and the oil level detection control system 100 further includes:

[0065] Display screen 106, which is connected to the electric control box 103 and is used to display operating parameters;

[0066] The operating parameters include at least one of the following: an inclination angle, a first oil level value, and a second oil level value.

[0067] In this embodiment, the oil level detection control system 100 further includes a display screen 106 for displaying operating parameters, wherein the operating parameters include at least one of the following: a tilt angle, a first oil level value, and a second oil level value.

[0068] The display screen 106 is connected to the electric control box 103 and can receive the operating parameters sent by the electric control box 103 .

[0069] Exemplarily, the display screen 106 may be a liquid crystal screen.

[0070] The oil level detection and control system 100 in this embodiment further includes a display screen 106 , which is used to display operating parameters, thereby enriching the functions of the oil level detection and control system 100 .

[0071] In some embodiments, optionally, an oil level detection control system 100 is proposed, and the display screen 106 and the electric control box 103 establish a communication connection based on a local area network bus protocol.

[0072] In this embodiment, the display screen 106 and the electric control box 103 establish a communication connection based on the LAN bus protocol, thereby ensuring data communication between the display screen 106 and the electric control box 103 .

[0073] In some embodiments, optionally, an oil level detection control system 100 is proposed, and the electric control box 103 establishes communication connections with the inclination sensor 102 and the liquid level sensor 101 based on the local area network bus protocol.

[0074] For example, Figure 2 As shown, the oil level detection control system 100 includes a liquid level sensor 101 , an inclination sensor 102 , an electric control box 103 , an oil pump motor 108 , a programmable logic controller 105 and a display screen 106 .

[0075] In this embodiment, the electric control box 103 establishes communication connections with the inclination sensor 102 and the liquid level sensor 101 based on the LAN bus protocol, thereby ensuring data communication between the electric control box 103 and the inclination sensor 102 and between the electric control box 103 and the liquid level sensor 101.

[0076] In some embodiments, optionally, an engineering machinery is proposed, including: an oil level detection and control system as in any of the above embodiments, and thus has all the beneficial technical effects of the oil level detection and control system in any of the above embodiments, which will not be elaborated herein.

[0077] In some embodiments, optionally, an engineering machine is proposed, where the engineering machine is any one of the following: a transport vehicle, a tunnel boring machine, and an excavator.

[0078] It should be clarified that in the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0079] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil level detection control system, characterized in that: For a hydraulic oil tank, the oil level detection control system comprises: A liquid level sensor, the liquid level sensor is arranged inside the hydraulic oil tank and is used to detect a first oil level value of the hydraulic oil tank; An inclination sensor is disposed on the hydraulic oil tank and is used to detect an inclination angle of the hydraulic oil tank; an electric control box, the electric control box being connected to the inclination sensor and the liquid level sensor respectively, and being used to receive the inclination angle and the first oil level value, and The first oil level value is updated according to the tilt angle to obtain a second oil level value of the hydraulic oil tank.

2. The oil level detection control system according to claim 1, characterized in that: The oil level detection control system also includes: An oil pump connected to the electric control box; Wherein, the electronic control box is also used to control the oil pump to extract the fuel inside the hydraulic oil tank.

3. The oil level detection control system according to claim 2, characterized in that: When the second oil level value is less than the oil level threshold, the electric control box is used to control the oil pump to stop working and output an oil level too low alarm; When the second oil level value is greater than the oil level threshold, the electronic control box is used to control the oil pump to maintain operation.

4. The oil level detection control system according to claim 1, characterized in that: The electric control box includes a programmable logic controller, which is used to: Acquire a data model corresponding to the tilt angle; The second oil level value is determined according to the inclination angle, the first oil level value and the data model.

5. The oil level detection control system according to claim 4, characterized in that: The programmable logic controller is also used for: Determining an oil level compensation value corresponding to the tilt angle according to the data model; The first oil level value is updated according to the oil level compensation value to obtain the second oil level value.

6. The oil level detection control system according to claim 1, characterized in that: The oil level detection control system also includes: A display screen, which is connected to the electric control box and is used to display operating parameters; Wherein, the operating parameters include at least one of the following: the tilt angle, the first oil level value and the second oil level value.

7. The oil level detection control system according to claim 6, characterized in that: The display screen and the electric control box establish a communication connection based on a local area network bus protocol.

8. The oil level detection control system according to any one of claims 1 to 7, characterized in that: The electric control box establishes communication connections with the inclination sensor and the liquid level sensor respectively based on a local area network bus protocol.

9. An engineering machine, characterized in that: The construction machinery comprises the oil level detection control system according to any one of claims 1 to 8.

10. The construction machine according to claim 9, characterized in that: The engineering machinery is any one of the following: a transport vehicle, a tunnel boring machine and an excavator.

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