CN219450895U - Excavator weighing device and excavator - Google Patents
Excavator weighing device and excavator Download PDFInfo
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- CN219450895U CN219450895U CN202320528362.2U CN202320528362U CN219450895U CN 219450895 U CN219450895 U CN 219450895U CN 202320528362 U CN202320528362 U CN 202320528362U CN 219450895 U CN219450895 U CN 219450895U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model provides an excavator weighing device, which relates to the field of mining machinery and comprises a strain detection device, a first angle detection device, a second angle detection device and a controller, wherein the strain detection device is fixedly connected with a movable arm or a bucket rod, the first angle detection device, the second angle detection device and the controller are fixedly connected with an excavator body, the first angle detection device and the second angle detection device are in communication connection with the controller, the strain detection device is used for detecting the strain of a corresponding part of the movable arm or the bucket rod, the first angle detection device is used for detecting a first angle between the movable arm and a vehicle body of the excavator body, the second angle detection device is used for detecting a second angle between the bucket rod and the movable arm, and the controller can obtain the weight of materials in the bucket rod according to a strain value detected by the strain detection device when the first angle is identical with the first preset angle in the controller and the second angle is identical with the second preset angle in the controller. The excavator provided by the utility model comprises an excavator body and an excavator weighing device. The working efficiency can be improved.
Description
Technical Field
The utility model relates to the technical field of mining machinery, in particular to an excavator weighing device and an excavator.
Background
With the rapid development of excavating machinery and the increasing demands of people on quantitative work tasks, there is an increasing need for a device that can weigh materials online and count excavating output in real time.
The traditional excavator weighing mode mainly obtains the weight of the excavated material through the pressure of a movable arm oil cylinder, and parameters required by the excavated material weighing include the pressure of a large cavity and a small cavity of the movable arm oil cylinder, the inclination angle of a rotary platform relative to the horizontal ground, the angle between a movable arm and the rotary platform, the angle between a bucket rod and the movable arm and the angle between the bucket rod and the bucket rod, as provided by Chinese patent CN202210701524.8, an excavator controller and an excavator. The weight of the excavated material in the excavator bucket is obtained through geometrical calculation through the parameters and the size and weight parameters of the parts fixed during excavation design. However, the hydraulic system of the excavator is complex in structure, high in maintenance frequency, and low in working efficiency, and the detection component for detecting the pressure of the oil cylinder is easily dismounted and mounted for multiple times during maintenance or replacement.
Disclosure of Invention
The utility model aims to provide an excavator weighing device and an excavator, which are used for solving the problems in the prior art, can be used for detecting the weight of excavated materials and are beneficial to improving the working efficiency.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides an excavator weighing device which comprises a strain detection device, a first angle detection device, a second angle detection device and a controller, wherein the strain detection device is used for being fixedly connected with a movable arm or a bucket rod of an excavator body, the first angle detection device, the second angle detection device and the controller are all used for being fixedly connected with the excavator body, the first angle detection device, the second angle detection device and the strain detection device are all in communication connection with the controller, the strain detection device is used for detecting the strain of a part, where the movable arm or the bucket rod is connected with the strain detection device, the first angle detection device is used for detecting a first angle between the movable arm and the excavator body, the second angle detection device is used for detecting a second angle between the movable arm and the bucket rod, and the controller can obtain a strain value of a material in the excavator body according to the detection of the second angle between the movable arm and the bucket rod and the controller.
Preferably, a proportional coefficient between the weight of the material in the bucket and the strain value of the part, where the movable arm or the bucket arm is connected with the strain detection device, is arranged in the controller, and the proportional coefficient is a ratio of the weight of the material in the bucket to the strain value of the part, where the movable arm or the bucket arm is connected with the strain detection device, or a ratio of the strain value of the part, where the movable arm or the bucket arm is connected with the strain detection device, to the weight of the material in the bucket.
Preferably, the first angle detection device is fixedly connected to a joint connecting the boom and the vehicle body, and the second angle detection device is fixedly connected to a joint connecting the arm and the boom.
Preferably, the strain detecting device is fixedly connected to the movable arm.
Preferably, the excavator further comprises a display device, wherein the display device is in communication connection with the controller, the display device is fixedly connected with the excavator body, the display device can be used for setting the proportionality coefficient in the controller, and the display device can display the weight of materials in the bucket.
Preferably, the strain detecting device is a strain gauge.
Preferably, the first angle detecting device and the second angle detecting device are both angle sensors.
The utility model also provides an excavator, which comprises an excavator body and the excavator weighing device, wherein the strain detection device is fixedly connected with a movable arm or a bucket rod of the excavator body, and the first angle detection device, the second angle detection device and the controller are fixedly connected with the excavator body.
Compared with the prior art, the utility model has the following technical effects:
according to the excavator weighing device and the excavator, the strain detection device is used for being fixedly connected with the movable arm or the bucket rod of the excavator body, the first angle detection device and the second angle detection device are both used for being fixedly connected with the excavator body, and the controller can obtain the weight of materials in the bucket of the excavator body according to the strain value detected by the strain detection device when the angle between the movable arm and the automobile body is the same as a first preset angle in the controller and the angle between the bucket rod and the movable arm is the same as a second preset angle in the controller. The strain detection device, the first angle detection device and the second angle detection device are arranged on the excavator body, and when the excavator is used, the failure rate of the excavator body is lower than that of a hydraulic system for driving the movable arm and the bucket, the strain detection device, the first angle detection device and the second angle detection device are not required to be frequently disassembled and assembled, and the work efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an excavator in embodiment 2;
FIG. 2 is a system block diagram of an excavator weighing device in example 1;
in the figure: 100. an excavator weighing device; 200. an excavator; 1. strain detecting means; 2. a first angle detection device; 3. a second angle detection device; 4. a controller; 5. a movable arm; 501. a lower steel plate; 6. a bucket rod; 7. a display device; r, a first angle; w, second angle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide an excavator weighing device and an excavator, which are used for solving the problems in the prior art, can be used for detecting the weight of excavated materials and are beneficial to improving the working efficiency.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
As shown in fig. 2, the present embodiment provides an excavator weighing device 100, which includes a strain detecting device 1, a first angle detecting device 2, a second angle detecting device 3 and a controller 4, wherein the strain detecting device 1 is used for being fixedly connected with a boom 5 or an arm 6 of an excavator 200 body, the first angle detecting device 2, the second angle detecting device 3 and the controller 4 are all used for being fixedly connected with the excavator 200 body, the first angle detecting device 2, the second angle detecting device 3 and the controller 4 are all in communication connection with the controller 4, the strain detecting device 1 is used for detecting the strain of a part, where the strain detecting device 1 is connected with the boom 5 or the arm 6, of the excavator, the first angle detecting device 2 is used for detecting a first angle r between the boom 5 and a vehicle body of the excavator 200 body, the second angle detecting device 3 is used for detecting a second angle w between the arm 6 and the boom 5, and the controller 4 can obtain a strain value of the excavator material 200 according to the strain detecting device 1 when the angles of the boom 5 and the vehicle body are the same as a first preset angle in the controller 4 and the second preset angle in the controller 4. The strain detection device 1, the first angle detection device 2 and the second angle detection device 3 are all arranged on the excavator 200 body, and when the excavator 200 is used, the failure rate of the excavator 200 body is lower than that of a hydraulic system for driving the movable arm 5 and the bucket, the strain detection device 1, the first angle detection device 2 and the second angle detection device 3 are not required to be frequently assembled and disassembled, and the work efficiency is improved. And because the strain amounts of the materials with the same weight under different first angles r and/or second angles w are different, weighing is performed under specific first angles r and second angles w, so that the weighing accuracy is ensured.
The movable arm 5 is rotatably connected with the vehicle body around a first axis, the movable arm 5 is provided with the bucket rod 6 which is rotatably connected with the vehicle body around a second axis, and an included angle between a connecting line (a first connecting line) between two projection points of the first axis and the second axis in a first vertical plane and a horizontal plane is a first angle r between the movable arm 5 and the vehicle body; the bucket and the bucket arm 6 are rotatably connected around a third axis, and an included angle between a connecting line between two projection points of the third axis and the second axis in the first vertical plane and the first connecting line is a second angle w between the movable arm 5 and the bucket arm 6.
The excavator weighing device 100 provided by the embodiment further comprises a display device 7, wherein the display device 7 is in communication connection with the controller 4, the display device 7 is fixedly connected with the excavator 200 body, the display device 7 can be used for setting a proportion coefficient in the controller 4, and the display device 7 can display the weight of materials in the bucket. The display device 7 and/or the controller 4 are capable of storing measured data. The display device 7 is preferably a touch screen.
In a preferred embodiment, the controller 4 is provided with a proportionality coefficient between the weight of the material in the bucket and the strain value of the part where the boom 5 or the arm 6 is connected with the strain detection device 1, and the proportionality coefficient is a ratio of the weight of the material in the bucket and the strain value of the part where the boom 5 or the arm 6 is connected with the strain detection device 1 or a ratio of the strain value of the part where the boom 5 or the arm 6 is connected with the strain detection device 1 and the weight of the material in the bucket.
As a preferred embodiment, the scaling factor can be obtained using a weight calibration method: a 1kg weight is placed in a bucket, an operation movable arm 5 moves to a first angle r and a bucket rod 6 moves to a second angle w, a strain detection device 1 detects a strain value of a corresponding part, a display device 7 displays and records a first deformation value, and a first deformation proportion is calculated and obtained; repeating the steps by using weights of 5kg and 20kg to obtain a second deformation proportion and a third deformation proportion; the average value of the first deformation ratio, the second deformation ratio and the third deformation ratio, which is the above-mentioned proportionality coefficient, is calculated, and the proportionality coefficient is set in the controller 4 through the display device 7.
As a more preferable embodiment, a 1kg weight is placed in the bucket, the operation arm 5 moves to a first angle r and the bucket rod 6 moves to a second angle w, the strain detection device 1 detects the strain value of the corresponding part, the weight of the weight is written into the controller 4 through the display device 7, and the controller 4 automatically calculates to obtain a first deformation proportion; repeating the steps by using weights of 5kg and 20kg to obtain a second deformation proportion and a third deformation proportion; the controller 4 automatically calculates an average value of the first deformation ratio, the second deformation ratio, and the third deformation ratio, which is the above-mentioned scaling factor.
In a preferred embodiment, the first angle detection device 2 is fixedly connected to a joint connecting the boom 5 and the vehicle body, and the second angle detection device 3 is fixedly connected to a joint connecting the arm 6 and the boom 5.
As a preferred embodiment, the strain detecting device 1 is fixedly connected to the boom 5. When the bucket is loaded, the bucket rod 6, the movable arm 5 and the corresponding hydraulic cylinder are stressed to deform, and the deformation of the movable arm 5 is larger when the bucket is loaded, so that the strain detection device 1 is attached to the movable arm 5, the strain detection device 1 can be protected, and the measuring range and the stability can be improved. As a more preferable embodiment, the strain detecting device 1 is fixedly connected to the lower steel plate 501 of the boom 5, and deformation of the lower steel plate 501 of the boom 5 is maximized when the bucket is loaded.
As a preferred embodiment, the strain detecting device 1 is a strain gauge, and the first angle detecting device 2 and the second angle detecting device 3 are angle sensors. The strain gauge is attached to a position (lower steel plate 501 of movable arm 5) where deformation is required to be measured, and when the measured part is deformed by the acting force, the strain gauge attached to the position is deformed, so that the resistance of the strain gauge is correspondingly changed. The strain gauge converts the mechanical quantity into the variable quantity of the resistor and outputs the variable quantity. The processing circuit of the controller 4 converts the resistance change of the strain gauge output into a voltage or current change to obtain the deformation amount of the strain gauge (the lower steel plate 501 of the boom 5).
Example 2
As shown in fig. 1, the present embodiment provides an excavator 200, which includes an excavator 200 body and the excavator weighing device 100 in embodiment 1, wherein the strain detection device 1 is fixedly connected with a boom 5 or an arm 6 of the excavator 200 body, and the first angle detection device 2, the second angle detection device 3 and the controller 4 are fixedly connected with the excavator 200 body.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (8)
1. An excavator weighing device, its characterized in that: including strain detection device, first angle detection device, second angle detection device and controller, strain detection device be used for with the swing arm or the dipper fixed connection of excavator body, first angle detection device second angle detection device with the controller all be used for with excavator body fixed connection, first angle detection device second angle detection device with strain detection device all with the controller communication is connected, strain detection device is used for detecting the swing arm or the dipper is connected with the strain of the position of strain detection device, first angle detection device is used for detecting the swing arm with first angle between the automobile body of excavator body, second angle detection device is used for detecting the dipper with second angle between the swing arm, the controller can be in the swing arm with the angle of automobile body is the same with the first angle of predetermineeing in the controller and the angle between the dipper with the angle of swing arm is the second angle of predetermineeing in the controller is the same with the angle of predetermineeing in the controller simultaneously according to the swing arm the first angle detection device detects the first angle between the dipper the shovel body obtains the weight of the excavator material of strain value.
2. The excavator weighing device of claim 1 wherein: the novel shovel is characterized in that a proportional coefficient between the weight of the materials in the shovel and the strain value of the position, where the movable arm or the bucket rod is connected with the strain detection device, is arranged in the controller, and is the ratio of the weight of the materials in the shovel to the strain value of the position, where the movable arm or the bucket rod is connected with the strain detection device, or the ratio of the strain value of the position, where the movable arm or the bucket rod is connected with the strain detection device, to the weight of the materials in the shovel.
3. The excavator weighing device of claim 1 wherein: the first angle detection device is fixedly connected to the joint of the movable arm and the vehicle body, and the second angle detection device is fixedly connected to the joint of the bucket rod and the movable arm.
4. The excavator weighing device of claim 1 wherein: the strain detection device is fixedly connected to the movable arm.
5. The excavator weighing device of claim 2 wherein: the excavator further comprises a display device, wherein the display device is in communication connection with the controller and is used for being fixedly connected with the excavator body, the display device can be used for setting the proportionality coefficient in the controller, and the display device can display the weight of materials in the bucket.
6. The excavator weighing device of claim 1 wherein: the strain detection device is a strain gauge.
7. The excavator weighing device of claim 1 wherein: the first angle detection device and the second angle detection device are both angle sensors.
8. An excavator, characterized in that: the excavator weighing device comprises an excavator body and any one of claims 1-7, wherein the strain detection device is fixedly connected with a movable arm or a bucket rod of the excavator body, and the first angle detection device, the second angle detection device and the controller are fixedly connected with the excavator body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528362.2U CN219450895U (en) | 2023-03-17 | 2023-03-17 | Excavator weighing device and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528362.2U CN219450895U (en) | 2023-03-17 | 2023-03-17 | Excavator weighing device and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219450895U true CN219450895U (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320528362.2U Active CN219450895U (en) | 2023-03-17 | 2023-03-17 | Excavator weighing device and excavator |
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| Country | Link |
|---|---|
| CN (1) | CN219450895U (en) |
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2023
- 2023-03-17 CN CN202320528362.2U patent/CN219450895U/en active Active
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