CN211401395U - Loading and weighing device for bucket of hydraulic excavator - Google Patents
Loading and weighing device for bucket of hydraulic excavator Download PDFInfo
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- CN211401395U CN211401395U CN202020399536.6U CN202020399536U CN211401395U CN 211401395 U CN211401395 U CN 211401395U CN 202020399536 U CN202020399536 U CN 202020399536U CN 211401395 U CN211401395 U CN 211401395U
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Abstract
The utility model discloses a hydraulic excavator bucket carrying and weighing device, which comprises a stress direction testing device, an inclination angle sensor I, an inclination angle sensor II, a pressure sensor I and a pressure sensor II; the inclination angle sensor I is arranged on a machine body of the hydraulic excavator, the inclination angle sensor II is arranged on a movable arm, and the movable arm posture of the hydraulic excavator is obtained through the two inclination angle sensors; the pressure sensor I is arranged on a small cavity communicated oil circuit of the movable arm, the pressure sensor II is arranged on a large cavity communicated oil circuit of the movable arm oil cylinder, and the acting force of the movable arm oil cylinder on the movable arm is obtained through the two pressure sensors; the stress direction testing device is arranged on the movable arm root pin shaft, the stress direction of the movable arm root is obtained through the stress direction testing device, the total weight of the working device and the loaded material is further obtained, and the weight of the loaded material is further obtained. The utility model discloses not only can be used for testing the weight of the inside material that carries of scraper bowl can also be used for measuring the weight that the scraper bowl lifted by crane the material.
Description
Technical Field
The utility model relates to a hydraulic shovel scraper bowl carries thing weighing device belongs to hydraulic shovel test technical field.
Background
Excavators are the main instrument of earth and rockwork, and are often used for loading material and being used for great material in certain extent to hoist for haulage vehicle in the actual operation in-process. The hydraulic excavator with the weighing device can avoid vehicle overload in the process of loading a transport vehicle, and can avoid damage to the excavator or reduce safety accidents caused by unstable lifting in the process of lifting heavy objects exceeding the specified lifting capacity of the excavator. At present, a weighing system of an excavator mainly adopts a sensor to obtain output forces of a vehicle body, a movable arm, a bucket rod, a bucket and the movable arm, obtains a force arm distance of a material according to a material design gravity center of the bucket and a posture of a working device, and approximately obtains the weight of the material in the bucket. In the process of lifting heavy objects by using a bucket, the existing weighing system is basically not suitable due to the fact that the center of gravity and the designed center of gravity deviate greatly.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned defect, the purpose provides a hydraulic shovel scraper bowl year thing weighing device that application scope is wide, calculation accuracy is high.
In order to realize the purpose, the utility model discloses a technical scheme is:
a hydraulic excavator bucket object carrying weighing device comprises a stress direction testing device, an inclination angle sensor I, an inclination angle sensor II, a pressure sensor I and a pressure sensor II; the inclination angle sensor I is arranged on a machine body of the hydraulic excavator, the inclination angle sensor II is arranged on a movable arm, and the movable arm posture of the hydraulic excavator is obtained through the two inclination angle sensors; the pressure sensor I is arranged on a small cavity communicated oil circuit of the movable arm, the pressure sensor II is arranged on a large cavity communicated oil circuit of the movable arm oil cylinder, and the acting force of the movable arm oil cylinder on the movable arm is obtained through the two pressure sensors; the stress direction testing device is arranged on the movable arm root pin shaft, the stress direction of the movable arm root is obtained through the stress direction testing device, the total weight of the working device and the loaded material is further obtained, and the weight of the loaded material is further obtained.
Further, the stress direction testing device comprises a tension and compression sensor I, a tension and compression sensor II, a movable arm root pin shaft and a movable arm support; the upper end mounting hole of the tension and compression sensor I and the upper end mounting hole of the tension and compression sensor II are coaxially mounted on the outer end face of the movable arm root pin shaft through bolts; the lower end mounting hole of the tension and compression sensor I is mounted on the movable arm support through a bolt; and the lower end of the tension and compression sensor II is arranged in the hole and is arranged on the movable arm support through a bolt.
Furthermore, the projection included angle of a connecting line between the mounting holes of the tension and compression sensor I and a connecting line between the mounting holes of the tension and compression sensor II on a plane perpendicular to the axis of the pin shaft at the root of the movable arm is 0-90 degrees.
Furthermore, the movable arm root pin shaft is fixed with the movable arm support through a bolt at the inner end face, and the movable arm root pin shaft does not move relative to the movable arm support.
Furthermore, the cross sections, parallel to the installation plane, of the tension and compression sensor I and the tension and compression sensor II are oblong, and installation holes are formed in two ends of each oblong, parallel to the installation plane.
The utility model discloses beneficial effect:
by adopting the scheme, the attitude of the movable arm and the acting force direction of the movable arm oil cylinder can be obtained through the inclination angle sensor I and the inclination angle sensor II; the stress direction of the root of the movable arm can be obtained through the stress direction testing device; the acting force of the movable arm oil cylinder can be obtained through the pressure sensor I and the pressure sensor II. The total weight of the working device and the loaded material can be obtained through the acting force of the movable arm oil cylinder and the force-bearing direction of the movable arm root, and the weight of the loaded material is further calculated under the condition that the weight of the working device is known. In the calculation process, the position of the gravity center of the material does not need to be known, and the calculation precision is high. Not only can be used for testing the weight of the material carried in the bucket, but also can be used for measuring the weight of the material lifted by the bucket. Therefore, the utility model has the characteristics of application scope is wide, calculation accuracy is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. The present invention will be described in detail with reference to the accompanying drawings and examples.
FIG. 1 is a schematic view of the installation of the sensor of the present invention;
FIG. 2 is an installation diagram of the force direction testing device of the present invention;
fig. 3 is a schematic view of a force analysis of the working device.
In the figure, a hydraulic excavator 1, a stress direction testing device 2, an inclination angle sensor 3, an inclination angle sensor 4, a pressure sensor 5, a pressure sensor 6, a pressure sensor 7, a tension and compression sensor 8, a tension and compression sensor II and a movable arm root pin shaft 9 are arranged.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in figure 1, the loading and weighing device for the bucket of the hydraulic excavator comprises a stress direction testing device 2, an inclination angle sensor I3, an inclination angle sensor II 4, a pressure sensor I5 and a pressure sensor II 6. The inclination angle sensor I3 is installed on a machine body of the hydraulic excavator 1, the inclination angle sensor II 4 is installed on a movable arm, and the movable arm posture of the hydraulic excavator 1 is obtained through the two inclination angle sensors; the pressure sensor I5 is arranged on a small cavity communicated oil way of the movable arm, the pressure sensor II 6 is arranged on a large cavity communicated oil way of the movable arm oil cylinder, and the acting force of the movable arm oil cylinder on the movable arm is obtained through the two pressure sensors; the stress direction testing device 2 is arranged on the movable arm root pin shaft 9, the stress direction of the movable arm root is obtained through the stress direction testing device 2, the total weight of the working device and the loaded material is further obtained, and the weight of the loaded material is further obtained.
The stress direction testing device 2 is shown in fig. 2 and comprises a tension and compression sensor I7, a tension and compression sensor II 8, a movable arm root pin shaft 9 and a movable arm support 10. The upper end mounting hole of the tension and compression sensor I7 and the upper end mounting hole of the tension and compression sensor II 8 are coaxially mounted on the end face of the outer side of the movable arm root pin shaft 9 through bolts; a mounting hole at the lower end of the tension and compression sensor I7 is mounted on the movable arm support 10 through a bolt; the lower end of the tension and compression sensor II 8 is arranged in a hole and is arranged on the movable arm support 10 through a bolt; the projection included angle of a connecting line between the mounting holes of the tension and compression sensor I7 and a connecting line between the mounting holes of the tension and compression sensor II 8 on a plane vertical to the axis of the movable arm root pin shaft 9 is 0-90 degrees. The movable arm root pin shaft 9 is fixed with the movable arm support through a bolt at the inner end face, and the movable arm root pin shaft 9 and the movable arm support 10 do not move relatively. The cross sections of the tension and compression sensor I7 and the tension and compression sensor II 8, which are parallel to the installation plane, are oblong, and installation holes are formed in the two ends of the oblong, which are parallel to the installation plane.
Due to the adoption of the scheme, as shown in fig. 2, the posture of the movable arm and the acting force direction of the movable arm oil cylinder can be obtained through the inclination angle sensor I and the inclination angle sensor II; the stress direction and the stress magnitude of the movable arm root pin shaft 10 change due to the change of the posture of the working device and the weight of the loaded object, the movable arm root pin shaft 10 generates tiny displacement change in the stress direction, the stress direction of the movable arm root pin shaft 10 can be obtained through a pulling and pressing sensor I7 and a pulling and pressing sensor II 8 which form an included angle with each other, and the stress direction of the movable arm root is further obtained.
As shown in FIG. 3, the horizontal force F on the boom root can be determined when the force on the boom root is determined1xAnd vertical force F1yThe proportional relationship between the two; by force F of boom cylinder0The acting force F applied by the boom oil cylinder to the boom in the horizontal direction can be determined0xAnd a force F exerted in the vertical direction0yThe total weight G of the working device and the loaded material is obtained through the stress balanceGeneral assemblyAnd under the condition that the quality of the working device is known, the weight of the material loaded by the bucket is obtained. In the calculation process, the position of the gravity center of the material does not need to be known, and the calculation precision is high. Not only can be used for measuring the weight of the material carried in the bucket, but also can be used for measuring the weight of the material lifted by the bucket. Therefore, the utility model has the characteristics of application scope is wide, calculation accuracy is high.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a hydraulic shovel scraper bowl carries thing weighing device which characterized in that: the device comprises a stress direction testing device, an inclination angle sensor I, an inclination angle sensor II, a pressure sensor I and a pressure sensor II;
the inclination angle sensor I is arranged on a machine body of the hydraulic excavator, the inclination angle sensor II is arranged on a movable arm, and the movable arm posture of the hydraulic excavator is obtained through the two inclination angle sensors;
the pressure sensor I is arranged on a small cavity communicated oil circuit of the movable arm, the pressure sensor II is arranged on a large cavity communicated oil circuit of the movable arm oil cylinder, and the acting force of the movable arm oil cylinder on the movable arm is obtained through the two pressure sensors;
the stress direction testing device is arranged on the movable arm root pin shaft, the stress direction of the movable arm root is obtained through the stress direction testing device, the total weight of the working device and the loaded material is further obtained, and the weight of the loaded material is further obtained.
2. The hydraulic excavator bucket load weighing device of claim 1, wherein:
the stress direction testing device comprises a tension and compression sensor I, a tension and compression sensor II, a movable arm root pin shaft and a movable arm support;
the upper end mounting hole of the tension and compression sensor I and the upper end mounting hole of the tension and compression sensor II are coaxially mounted on the outer end face of the movable arm root pin shaft through bolts;
the lower end mounting hole of the tension and compression sensor I is mounted on the movable arm support through a bolt;
and the lower end of the tension and compression sensor II is arranged in the hole and is arranged on the movable arm support through a bolt.
3. The hydraulic excavator bucket load weighing device of claim 2, wherein:
and the projection included angle of a connecting line between the mounting holes of the tension and compression sensor I and a connecting line between the mounting holes of the tension and compression sensor II on a plane vertical to the axis of the movable arm root pin shaft is 0-90 degrees.
4. The hydraulic excavator bucket load weighing device of claim 2, wherein:
the movable arm root pin shaft is fixed with the movable arm support through a bolt at the inner end face, and the movable arm root pin shaft does not move relative to the movable arm support.
5. The hydraulic excavator bucket load weighing device of claim 2, wherein:
the cross sections, parallel to the installation plane, of the tension and compression sensor I and the tension and compression sensor II are oblong, and installation holes are formed in the two ends of the oblong, parallel to the installation plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399536.6U CN211401395U (en) | 2020-03-26 | 2020-03-26 | Loading and weighing device for bucket of hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399536.6U CN211401395U (en) | 2020-03-26 | 2020-03-26 | Loading and weighing device for bucket of hydraulic excavator |
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| Publication Number | Publication Date |
|---|---|
| CN211401395U true CN211401395U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020399536.6U Active CN211401395U (en) | 2020-03-26 | 2020-03-26 | Loading and weighing device for bucket of hydraulic excavator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124972A (en) * | 2021-03-12 | 2021-07-16 | 中国航空工业集团公司西安飞行自动控制研究所 | Excavator material weighing method and system |
| CN117216728A (en) * | 2023-11-09 | 2023-12-12 | 金成技术股份有限公司 | Excavator movable arm stability detection method |
-
2020
- 2020-03-26 CN CN202020399536.6U patent/CN211401395U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124972A (en) * | 2021-03-12 | 2021-07-16 | 中国航空工业集团公司西安飞行自动控制研究所 | Excavator material weighing method and system |
| CN117216728A (en) * | 2023-11-09 | 2023-12-12 | 金成技术股份有限公司 | Excavator movable arm stability detection method |
| CN117216728B (en) * | 2023-11-09 | 2024-02-02 | 金成技术股份有限公司 | Excavator movable arm stability detection method |
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