Excavation depth control device of excavator

Abstract

The invention discloses an excavator excavation depth control device, which belongs to the field of excavators, and comprises an excavation depth acquisition and calculation device, an excavation depth feedback device and a positioning base station, the excavation depth collecting and calculating device is wirelessly connected with the positioning base station, and the positioning base station is used for calculating the vertical distance between the excavation depth collecting and calculating device and the ground; the excavation depth collecting and calculating device is used for calculating the vertical distance between the collecting device and a bucket tooth when the excavator bucket cuts soil at the maximum depth and calculating the excavation depth of the excavator; the excavation depth collecting and calculating device is in wireless connection with the excavation depth feedback device, and the excavation depth feedback device is used for comparing the preset excavation depth with the site excavation depth and displaying the preset excavation depth and the site excavation depth. The device is simple in principle, simple in transmission process, low in manufacturing cost, high in control precision, capable of improving the precision of the excavation process, capable of improving the excavation efficiency, capable of saving labor and wide in market application prospect.

Description

Technical Field

[0001] The present invention relates to the field of excavators, and particularly to a device for controlling the excavation depth of an excavator. Background Art

[0002] An excavator, as a heavy mechanical equipment, plays an important role in our lives. The operation efficiency of an excavator is much higher. An excavator can operate through a variety of attachments or buckets, and can easily excavate and move a large amount of earth and stone materials. The amount of work that can be completed within one hour is equivalent to the manual work of several people-days. During the operation of an excavator, only the operator needs to remotely control or operate it on-site, which can effectively reduce the labor cost. An excavator can effectively shorten the project cycle through its fast and efficient characteristics. Of course, this also needs to be combined with a reasonable construction plan and careful on-site management to give full play to the advantages of the excavator.

[0003] Currently, when carrying out earth excavation operations in the engineering field, it is necessary to cooperate with surveyors to control the excavation depth in real time to avoid over-excavation. This operation method is greatly affected by the level of surveyors and visibility. For example, it is more difficult to measure the excavation depth during night construction. Summary of the Invention

[0004] For the above problems existing in the prior art, the purpose of the present invention is to provide a device for controlling the excavation depth of an excavator to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A device for controlling the excavation depth of an excavator includes an excavation depth acquisition and calculation device, an excavation depth feedback device, and a positioning base station; the excavation depth acquisition and calculation device is wirelessly connected to the positioning base station, and the positioning base station is used to calculate the vertical distance between the excavation depth acquisition and calculation device and the ground; the excavation depth acquisition and calculation device is used to calculate the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, and calculate the excavation depth of the excavator.

[0007] The excavation depth acquisition and calculation device is wirelessly connected to the excavation depth feedback device, and the excavation depth feedback device is used to compare the predetermined excavation depth with the on-site excavation depth and display it.

[0008] As a further solution of the present invention: the excavation depth acquisition and calculation device internally includes a positioning module and a position and height acquisition module. The positioning module is communicatively connected to the positioning base station, the positioning module and the position and height acquisition module are communicatively connected. The positioning module and the positioning base station are used to measure the distance between the excavation depth acquisition and calculation device and the ground, and the position and height acquisition module is used to acquire the distance data between the predetermined excavation depth acquisition and calculation device and the ground.

[0009] As a further solution of the present invention: a digging height acquisition module, a maximum number collection module, and a calculation module are provided inside the excavation depth acquisition and calculation device; the digging height acquisition module is communicatively connected to the maximum number collection module, and both the maximum number collection module and the position height acquisition module are communicatively connected to the calculation module. The digging height acquisition module is used to measure the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth. The maximum number collection module is used to collect the maximum vertical distance data, and the calculation module is used to calculate the excavation depth.

[0010] As a further solution of the present invention: a data sending module is included inside the excavation depth acquisition and calculation device, and a data receiving module is provided inside the excavation depth feedback device. The data sending module is wirelessly communicatively connected to the data receiving module, and the data sending module and the data receiving module are used for data transmission.

[0011] As a further solution of the present invention: an excavation depth input module and a database are provided inside the excavation depth feedback device. The excavation depth input module is communicatively connected to the database. The excavation depth input module is used to input the excavation depth, and the database is used to store the predetermined excavation depth.

[0012] As a further solution of the present invention: a data comparison module is provided inside the excavation depth feedback device. Both the database and the data receiving module are communicatively connected to the input end of the data comparison module. The data comparison module is used to compare the predetermined excavation depth and the on-site excavation depth.

[0013] As a further solution of the present invention: the excavation depth feedback device includes a display module, and the display module includes a display screen and a display lamp; the display module is communicatively connected to the output end of the data comparison module. The display screen is used to display the predetermined excavation depth and the on-site excavation depth, and the display lamp is used to display whether the on-site excavation depth exceeds the predetermined excavation depth.

[0014] As a further solution of the present invention: the excavation depth acquisition and calculation device is installed on the front arm of the excavator.

[0015] As a further solution of the present invention: the excavation depth feedback device is installed inside the cab of the excavator.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The positioning base station of the present invention is used to calculate the vertical distance h1 between the excavation depth acquisition and calculation device and the ground; the excavation depth acquisition and calculation device is used to calculate the vertical distance h2 between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, and the excavation depth H of the excavator is obtained by calculation, where H = h2 - h1; the excavation depth acquisition and calculation device transmits the calculated excavation depth each time to the excavation depth feedback device, and compares it with the predetermined required excavation depth through the excavation depth feedback device to determine whether the depth of this excavation exceeds and displays it. The device principle of the present invention is simple, the transmission process is simple, the manufacturing cost is low, the control accuracy is high, it can improve the accuracy of the excavation process, improve the excavation efficiency and save labor, and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a principle block diagram of an excavator excavation depth control device disclosed in the embodiment.

[0018] Figure 2 It is an installation schematic diagram of an excavator excavation depth control device disclosed in the embodiment.

[0019] The reference numerals in the figure are: 1. Excavation depth acquisition and calculation device; 2. Excavation depth feedback device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", and "connected" should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] Please refer to Figure 1-2, An excavation depth control device for an excavator, comprising an excavation depth acquisition and calculation device 1, an excavation depth feedback device 2, and a positioning base station 3; the excavation depth acquisition and calculation device 1 is wirelessly connected to the positioning base station 3, and the positioning base station 3 is used to calculate the vertical distance h1 between the excavation depth acquisition and calculation device 1 and the ground; the excavation depth acquisition and calculation device 1 is used to calculate the vertical distance h2 between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, and calculates the excavation depth H of the excavator = h2 - h1;

[0023] The excavation depth acquisition and calculation device 1 is wirelessly connected to the excavation depth feedback device 2. The excavation depth acquisition and calculation device 1 transmits the calculated excavation depth each time to the excavation depth feedback device 2. By comparing with the predetermined required excavation depth through the excavation depth feedback device 2, it is determined whether the depth of this excavation exceeds and is displayed.

[0024] When the excavator is digging soil, first use the bucket to cut the soil downward, and then hook the bucket inward or outward. For a front shovel excavator, it is outward, and for a backhoe excavator, it is inward. The position of the front end of the bucket teeth of the bucket during cutting represents the depth of this excavation. The excavation depth acquisition device is installed on the front arm of the excavator. By calculating the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, and then calculating the depth value of this soil cutting through the vertical coordinates of the depth acquisition and calculation device fed back by the positioning base station. This depth value is compared with the designed mechanical excavation depth value. If it exceeds this value, it will display red on the display screen of the excavation depth feedback device installed in the excavator cab, and give the overexcavation value. If it does not exceed, it will display green and give the remaining excavation depth value. The excavation depth acquisition and calculation device is the core of the whole system. In addition, the accuracy of coordinate dynamic positioning determines the accuracy of excavation depth determination. At present, the accuracy value of the dynamic coordinate positioning device on the market can reach the centimeter level. And for conventional mechanical excavation, 30 cm of the original soil needs to be reserved for manual cleaning. Therefore, the current positioning accuracy can meet the requirements.

[0025] The excavation depth acquisition and calculation device 1 internally includes a positioning module and a position and height acquisition module. The positioning module is communicatively connected to the positioning base station 3, and the positioning module and the position and height acquisition module are communicatively connected. The distance between the excavation depth acquisition and calculation device 1 and the ground is clearly obtained through the positioning module and transmitted to the position and height acquisition module for standby;

[0026] The excavation depth acquisition and calculation device 1 is internally provided with a digging height acquisition module, a maximum number collection module, and a calculation module; the digging height acquisition module is communicatively connected to the maximum number collection module, and both the maximum number collection module and the position height acquisition module are communicatively connected to the calculation module. The digging height acquisition module is used to measure the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth. The maximum vertical distance after each excavation is taken through the maximum number collection module and transmitted to the calculation module. The calculation module calculates the excavation depth by calculating the difference between the distance of the maximum number collection module of the maximum number collection module and the position height acquisition module, which is convenient for clear calculation, ensures safety, and facilitates the use of the device.

[0027] The excavation depth acquisition and calculation device 1 internally includes a data sending module, and the excavation depth feedback device 2 is internally provided with a data receiving module. The data sending module is wirelessly communicatively connected to the data receiving module. The data receiving module transmits the calculated excavation depth to the excavation depth feedback device 2, which is convenient for subsequent comparison and timely feedback of the excavation situation.

[0028] The excavation depth feedback device 2 is internally provided with an excavation depth input module and a database. The excavation depth input module is communicatively connected to the database. The excavation depth input module is used to input the depth that the excavator needs to dig and store it in the database;

[0029] The excavation depth feedback device 2 is internally provided with a data comparison module. Both the database and the data receiving module are communicatively connected to the input end of the data comparison module. The data comparison module compares the predetermined excavation depth in the database with the on-site excavation depth received by the data receiving module, which is convenient for clearly reflecting the on-site excavation situation.

[0030] The excavation depth feedback device 2 includes a display module. The display module includes a display screen and a display lamp; the display module is communicatively connected to the output end of the data comparison module. The display screen is used to display the predetermined input excavation depth and the on-site excavation depth. When the on-site excavation depth exceeds the predetermined input excavation depth, the display lamp displays a red warning and gives the over-excavation value, which is convenient for the excavator driver to adjust it in time; when the on-site excavation depth does not exceed the predetermined input excavation depth, the display lamp displays a red warning and gives the depth value that still needs to be excavated, which is convenient for the excavator driver to clearly know the depth that still needs to be excavated.

[0031] The excavation depth acquisition and calculation device 1 is installed on the front arm of the excavator and is used to calculate the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, which is convenient for subsequent use.

[0032] The excavation depth feedback device 2 is installed inside the cab of the excavator and is used for the driver to timely observe the excavation depth of the excavator, which is convenient for adjustment, ensures safety, and facilitates the use of the device.

[0033] The device principle of the present invention is simple, the transmission process is simple, the manufacturing cost is low, the control accuracy is high, it can improve the accuracy of the excavation process, improve the excavation efficiency and save labor, and has broad market application prospects.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An excavation depth control device for an excavator, characterized in that: The invention comprises an excavation depth acquisition and calculation device (1), an excavation depth feedback device (2) and a positioning base station (3); the excavation depth acquisition and calculation device (1) is wirelessly connected to the positioning base station (3), and the positioning base station (3) is used to calculate the vertical distance between the excavation depth acquisition and calculation device (1) and the ground; the excavation depth acquisition and calculation device (1) is used to calculate the vertical distance between the acquisition device and the bucket teeth when the excavator bucket cuts the soil to the maximum depth, and calculates the excavation depth of the excavator; The excavation depth collection and calculation device (1) is wirelessly connected to the excavation depth feedback device (2), and the excavation depth feedback device (2) is used to compare the predetermined excavation depth with the on-site excavation depth and display it.

2. The excavation depth control device for an excavator according to claim 1, characterized in that: The excavation depth collection and calculation device (1) internally comprises a positioning module and a position height collection module, the positioning module is in communication connection with a positioning base station (3), the positioning module and the position height collection module are in communication connection, the positioning module and the positioning base station (3) are used to measure the distance between the excavation depth collection and calculation device (1) and the ground, and the position height collection module is used to preset the distance data between the excavation depth collection and calculation device (1) and the ground.

3. The excavation depth control device for an excavator according to claim 2, characterized in that: The excavation depth collection and calculation device (1) is internally provided with an excavation height collection module, a maximum number collection module, and a calculation module; the excavation height collection module is communicatively connected with the maximum number collection module, and the maximum number collection module and the position height collection module are both communicatively connected with the calculation module, the excavation height collection module is used to measure the vertical distance between the collection device and the bucket teeth when the excavator bucket cuts the soil at the maximum depth, the maximum number collection module is used to collect the maximum vertical distance data, and the calculation module is used to calculate the excavation depth.

4. The excavation depth control device for an excavator according to claim 3, characterized in that: The excavation depth collection and calculation device (1) includes a data sending module, and the excavation depth feedback device (2) includes a data receiving module. The data sending module is wirelessly connected to the data receiving module, and the data sending module and the data receiving module are used for data transmission.

5. The excavation depth control device for an excavator according to claim 4, characterized in that: The excavation depth feedback device (2) is internally provided with an excavation depth input module and a database. The excavation depth input module and the database are communicatively connected. The excavation depth input module is used to input the excavation depth, and the database is used to store the predetermined excavation depth.

6. The excavation depth control device for an excavator according to claim 5, characterized in that: The excavation depth feedback device (2) is internally provided with a data comparison module, and the database and the data receiving module are both communicatively connected to the input end of the data comparison module, and the data comparison module is used to compare the predetermined excavation depth with the on-site excavation depth.

7. The excavation depth control device for an excavator according to claim 6, characterized in that: The excavation depth feedback device (2) comprises a display module, which comprises a display screen and a display light; the display module is communicatively connected to the output end of the data comparison module, the display screen is used to display the predetermined excavation depth and the on-site excavation depth, and the display light is used to display whether the on-site excavation depth exceeds the predetermined excavation depth.

8. The excavation depth control device for an excavator according to claim 7, characterized in that: The excavation depth collection and calculation device (1) is installed on the front arm of the excavator.

9. The excavation depth control device for an excavator according to claim 8, characterized in that: The excavation depth feedback device (2) is installed inside the cab of the excavator.

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