CN212513428U - Maximum excavating force testing device of hydraulic excavator under set posture - Google Patents
Maximum excavating force testing device of hydraulic excavator under set posture Download PDFInfo
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- CN212513428U CN212513428U CN202021543694.0U CN202021543694U CN212513428U CN 212513428 U CN212513428 U CN 212513428U CN 202021543694 U CN202021543694 U CN 202021543694U CN 212513428 U CN212513428 U CN 212513428U
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Abstract
The utility model discloses a hydraulic shovel is at the biggest digging force testing arrangement under set gesture, at hydraulic shovel's dipper hydro-cylinder, the big chamber and the loculus installation pressure sensor of scraper bowl hydro-cylinder, install inclination sensor on swing arm, dipper and scraper bowl. The attitude of the working device is obtained through the three inclination angle sensors, and the transmission ratio of the bucket excavating force and the bucket rod excavating force under the attitude is further calculated; the excavating force generated by the weight is obtained according to the transmission ratio by the pressure of the large cavity and the small cavity of the oil cylinder under the set posture of the working device; obtaining the maximum theoretical excavating force under the set posture according to the system pressure; the maximum digging force that can be actually output at a given attitude is obtained from the digging force by weight and the maximum theoretical digging force. The utility model has the characteristics of the installation degree of difficulty is low, test efficiency is high, the test site requires low, intensity of labour is low.
Description
Technical Field
The utility model relates to an excavator digging force test device belongs to the experimental technical field of hydraulic shovel.
Background
The large excavator plays an important role in the mining process of the mine, wherein the size of the excavating force is one of important indexes of whether the excavator can play the role. Usually, the excavating force test of the excavator is mainly carried out by matching a tension sensor with a ground anchor, and auxiliary parts such as a steel wire rope, a shackle and the like are also needed in the process. The large excavator excavating force test is carried out through an original mode, a large-tonnage steel wire rope, a tension sensor, a shackle, a ground anchor meeting the strength requirement and a foundation are needed, the conventional mode is high in installation difficulty, high in labor intensity, low in test efficiency and high in site requirement, challenges are brought to the large excavator excavating force test, and even test conditions are difficult to meet.
Disclosure of Invention
The utility model aims at overcoming above-mentioned defect, the purpose provides an installation degree of difficulty is low, test efficiency is high, the experimental place requires low, low in labor strength's excavation force testing arrangement.
In order to realize the purpose, the utility model discloses a technical scheme is:
a maximum excavating force testing device of a hydraulic excavator under a set posture comprises a pressure sensor I, an inclination angle sensor I, a pressure sensor II, an inclination angle sensor II, a pressure sensor III, a pressure sensor IV and an inclination angle sensor III; the inclination angle sensor I is arranged on the movable arm; the inclination angle sensor II is arranged on the bucket rod; the inclination angle sensor III is arranged on the bucket; the attitude of the working device is obtained through the three inclination angle sensors, and the transmission ratio of the bucket excavating force and the bucket rod excavating force under the attitude is further obtained; the pressure sensor I is arranged in a large cavity of the bucket rod oil cylinder; the pressure sensor II is arranged in a small cavity of the bucket rod oil cylinder; the pressure sensor III is arranged in a large cavity of the bucket oil cylinder; the pressure sensor IV is arranged in a small cavity of the bucket oil cylinder; the excavating force generated by the weight is obtained according to the transmission ratio by the pressure of the large cavity and the small cavity of the oil cylinder under the set posture of the working device; obtaining the maximum theoretical excavating force under the set posture according to the system pressure; the maximum digging force that can be actually output at a given attitude is obtained from the digging force by weight and the maximum theoretical digging force.
Further, a test plane of the tilt angle sensor I is parallel to the central line of a pin shaft of a hinge point of the bucket oil cylinder and the movable arm; a test plane of the inclination angle sensor I is parallel to the center line of a hinge point pin shaft of the movable arm and the bucket rod.
Furthermore, the test plane of the tilt angle sensor II is parallel to the central line of a pin shaft of the hinged point of the movable arm and the bucket rod, and the test plane of the tilt angle sensor II is parallel to the central line of a pin shaft of the hinged point of the bucket rod and the bucket.
Further, the test plane of the inclination angle sensor III is parallel to the plane of the bucket teeth.
Further, the position of the working device hinge point and the size of the bucket of the hydraulic excavator are measured before the test, and the transmission ratio of the arm digging force and the bucket digging force at each posture is formed.
Further, when the excavating force of the bucket rod is tested, the working device is placed into the posture of the excavating force of the bucket rod to be tested, the bucket is suspended, and the hydraulic excavator is in a non-action state; and recording data of the pressure sensor I, the inclination angle sensor I, the pressure sensor II, the inclination angle sensor II and the inclination angle sensor III under the posture, and calculating the excavating force of the bucket rod generated by the weight of the working device.
Further, when the digging force of the bucket is tested, the working device is placed into a posture of the digging force of the bucket to be tested, the bucket is suspended, and the hydraulic excavator is in a non-action state; and recording data of the attitude downward pressing inclination angle sensor I, the attitude downward pressing inclination angle sensor II, the attitude downward pressing inclination angle sensor III, the attitude downward pressing inclination angle sensor IV and the attitude downward pressing inclination angle sensor III, and calculating the bucket excavating force generated by the weight of the working device.
And further, moving the bucket rod oil cylinder during testing to enable the bucket rod to move to a hydraulic system along the direction of the bucket rod excavating force to generate an overflow condition, recording data of the pressure sensor I and the pressure sensor II during overflow, and calculating the maximum theoretical excavating force of the bucket generated by the system pressure in a set posture. The maximum theoretical digging force of the stick resulting from system pressure.
And further, moving a bucket oil cylinder during testing to enable the bucket to move to a hydraulic system along the excavating force direction of the bucket rod to generate an overflow condition, recording data of a pressure sensor III and a pressure sensor IV during overflow, and calculating the maximum theoretical excavating force of the bucket generated by the system pressure in a set posture.
Further, the actual output maximum excavating force of the arm under the set posture is obtained by superposing the excavating force of the arm generated by the weight of the working device and the maximum theoretical excavating force of the arm generated by the system pressure;
further, the actual output bucket maximum digging force at the given attitude is obtained by superimposing the bucket digging force by the work implement weight and the bucket maximum theoretical digging force by the system pressure.
The utility model discloses beneficial effect:
by adopting the scheme, the pressure test is adopted for the excavation force test to replace the original test method of using the tension sensor and the ground anchor, the installation difficulty is reduced, the test efficiency is improved, the requirement on a test field is reduced, and the labor intensity of personnel is reduced. Therefore, the utility model has the characteristics of the installation degree of difficulty is low, test efficiency is high, the test site requires lowly, intensity of labour is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic view of the practical application of the present invention;
in the figure, 1 hydraulic excavator, 2 pressure sensor I, 3 inclination angle sensor I, 4 pressure sensor II, 5 inclination angle sensor II, 6 pressure sensor III, 7 pressure sensor IV and 8 inclination angle sensor III.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a maximum excavation force test apparatus for a hydraulic excavator working apparatus in a predetermined posture. The device comprises a pressure sensor I2, an inclination angle sensor I3, a pressure sensor II 4, an inclination angle sensor II 5, a pressure sensor III 6, a pressure sensor IV 7 and an inclination angle sensor III 8.
Specifically, the mounting positions of the above components on the hydraulic excavator 1 are given below:
with continued reference to fig. 1, the hydraulic excavator 1 is placed on a horizontal ground; the pressure sensor I2 is arranged in a large cavity of the bucket rod oil cylinder; the inclination angle sensor I3 is arranged on the movable arm; the pressure sensor II 4 is arranged in the small cavity of the bucket rod oil cylinder; the inclination angle sensor II 5 is arranged on the bucket rod; the pressure sensor III 6 is arranged in a large cavity of the bucket oil cylinder; the pressure sensor IV 7 is arranged in a small cavity of the bucket oil cylinder; inclination sensor III 8 is installed on the scraper bowl. A test plane of the inclination angle sensor I3 is parallel to the central line of a pin shaft of a hinge point of the bucket oil cylinder and the movable arm; the test plane of the inclination angle sensor I3 is parallel to the center line of a hinge point pin shaft of the movable arm and the bucket rod. The test plane of the tilt angle sensor II 5 is parallel to the central line of a pin shaft of the hinged point of the movable arm and the bucket rod, and the test plane of the tilt angle sensor II 5 is parallel to the central line of a pin shaft of the hinged point of the bucket rod and the bucket. The test plane of the inclination angle sensor III 8 is parallel to the plane of the bucket teeth.
Note that, the boom excavation force and bucket excavation force transmission ratios at the respective attitudes were formed by measuring the working device pivot point position and the bucket size of the hydraulic excavator 1 before the test.
Specifically, when the excavating force of the bucket rod is tested, the working device is placed into the posture of the excavating force of the bucket rod to be tested, the bucket is suspended, and the hydraulic excavator 1 is in a non-action state; and recording data of the pressure sensor I2, the inclination angle sensor I3, the pressure sensor II 4, the inclination angle sensor II 5 and the inclination angle sensor III 8 under the posture, and calculating the bucket arm excavating force generated by the weight of the working device.
Specifically, when the excavation force of the bucket is tested, the working device is placed into the posture of the excavation force of the bucket to be tested, the bucket is suspended, and the hydraulic excavator 1 is in a non-action state; and recording data of the attitude downward pressing inclination angle sensor I3, the inclination angle sensor II 5, the pressure sensor III 6, the pressure sensor IV 7 and the inclination angle sensor III 8, and calculating the bucket excavating force generated by the weight of the working device.
Specifically, the bucket rod oil cylinder is moved during testing, the bucket rod is moved to a hydraulic system along the bucket rod excavating force direction to generate an overflow condition, data of a pressure sensor I2 and a pressure sensor II 4 during overflow are recorded, and the maximum theoretical excavating force of the bucket rod generated by system pressure in a set posture is calculated.
Specifically, during testing, the bucket oil cylinder is moved, the bucket is moved to a hydraulic system along the excavating force direction of the bucket rod to generate an overflow condition, data of a pressure sensor III 6 and data of a pressure sensor IV 7 during overflow are recorded, and the maximum theoretical excavating force of the bucket generated by system pressure in a set posture are calculated.
Specifically, the actual output arm maximum excavation force at the predetermined attitude is obtained by superimposing the arm excavation force by the work implement weight and the arm maximum theoretical excavation force by the system pressure.
Specifically, the actual output bucket maximum digging force at a given attitude is a superposition of the bucket digging force generated by the work implement weight and the bucket maximum theoretical digging force generated by the system pressure.
By adopting the scheme, the pressure test is adopted for the excavation force test to replace the original test method of using the tension sensor and the ground anchor, the installation difficulty is reduced, the test efficiency is improved, the requirement on a test field is reduced, and the labor intensity of personnel is reduced. Therefore, the utility model has the characteristics of the installation degree of difficulty is low, test efficiency is high, the test site requires lowly, intensity of labour is low.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a hydraulic shovel is maximum digging force testing arrangement under given gesture which characterized in that:
the device comprises a pressure sensor I, an inclination angle sensor I, a pressure sensor II, an inclination angle sensor II, a pressure sensor III, a pressure sensor IV and an inclination angle sensor III;
the inclination angle sensor I is arranged on the movable arm; the inclination angle sensor II is arranged on the bucket rod; the inclination angle sensor III is arranged on the bucket; the attitude of the working device is obtained through the three tilt angle sensors, and the transmission ratio of the bucket excavating force and the bucket rod excavating force under the attitude is further obtained;
the pressure sensor I is arranged in a large cavity of the bucket rod oil cylinder; the pressure sensor II is arranged in a small cavity of the bucket rod oil cylinder; the pressure sensor III is arranged in a large cavity of the bucket oil cylinder; the pressure sensor IV is arranged in a small cavity of the bucket oil cylinder; the excavating force generated by the weight is obtained according to the transmission ratio by the pressure of the large cavity and the small cavity of the oil cylinder under the set posture of the working device; obtaining the maximum theoretical excavating force under the set posture according to the system pressure; the maximum digging force that can be actually output at a given attitude is obtained from the digging force by weight and the maximum theoretical digging force.
2. The device for testing the maximum excavating force of a hydraulic excavator in a given posture according to claim 1, wherein:
and a test plane of the inclination angle sensor I is parallel to the central line of a pin shaft of a hinged joint of the bucket oil cylinder and the movable arm.
3. The device for testing the maximum excavating force of a hydraulic excavator in a given posture according to claim 1, wherein:
and a test plane of the inclination angle sensor I is parallel to the central line of a hinge point pin shaft of the movable arm and the bucket rod.
4. The device for testing the maximum excavating force of a hydraulic excavator in a given posture according to claim 1, wherein:
and a test plane of the inclination angle sensor II is parallel to the central line of a pin shaft of a hinged point of the movable arm and the bucket rod.
5. The device for testing the maximum excavating force of a hydraulic excavator in a given posture according to claim 1, wherein:
and the test plane of the inclination angle sensor II is parallel to the central line of a pin shaft of a hinged point of the bucket rod and the bucket.
6. The device for testing the maximum excavating force of a hydraulic excavator in a given posture according to claim 1, wherein:
and the test plane of the inclination angle sensor III is parallel to the plane of the bucket teeth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021543694.0U CN212513428U (en) | 2020-07-30 | 2020-07-30 | Maximum excavating force testing device of hydraulic excavator under set posture |
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| CN202021543694.0U CN212513428U (en) | 2020-07-30 | 2020-07-30 | Maximum excavating force testing device of hydraulic excavator under set posture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215500A (en) * | 2021-12-29 | 2022-03-22 | 徐州徐工挖掘机械有限公司 | Control system and control method for spiral drill pipe machine of hydraulic excavator |
| CN114323605A (en) * | 2021-12-03 | 2022-04-12 | 江苏徐工工程机械研究院有限公司 | Excavator bucket tooth tip resistance testing device and system and excavation track control system and method |
-
2020
- 2020-07-30 CN CN202021543694.0U patent/CN212513428U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323605A (en) * | 2021-12-03 | 2022-04-12 | 江苏徐工工程机械研究院有限公司 | Excavator bucket tooth tip resistance testing device and system and excavation track control system and method |
| CN114323605B (en) * | 2021-12-03 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Device and system for testing tooth point resistance of excavator bucket and excavating track control system and method |
| CN114215500A (en) * | 2021-12-29 | 2022-03-22 | 徐州徐工挖掘机械有限公司 | Control system and control method for spiral drill pipe machine of hydraulic excavator |
| CN114215500B (en) * | 2021-12-29 | 2024-01-23 | 徐州徐工挖掘机械有限公司 | Control system and control method for spiral drill rod machine tool of hydraulic excavator |
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