Multi-directional resistance detecting wheel-bucket excavator

Abstract

The application provides a multi-directional resistance detection type wheel bucket excavator, solves the problem that a conventional wheel bucket excavator is difficult to synchronously acquire detection data of multi-directional resistance of a bucket wheel device, and has the technical scheme that the bucket wheel device is provided with a resistance test system, the resistance test system comprises a test bucket and a first data acquisition device which are installed on the bucket wheel device, the test bucket is fixed on an outer cylindrical surface of the bucket wheel device through four pin shaft sensors, the first data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting collected data to a computer data analysis system, a positioning system module and a power supply, and the data acquisition module is connected with the pin shaft sensors through a test cable. The wheel bucket excavator can directly monitor and synchronously acquire three-directional resistance detection data, and the test device has high reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a multi-directional resistance detection type wheel bucket excavator for open-pit mining and equipment detection. BACKGROUND

[0002] At present, wheel bucket excavators are generally used in open-pit mining and stripping operations. The wheel bucket excavator mainly comprises a bucket wheel device, a receiving arm, a walking device, a large rotary device, a portal type bearing beam, a discharge arm and a small rotary device. The bucket wheel device is a front end cutting device of the wheel bucket excavator, and a plurality of buckets are arranged on the outer periphery of the bucket wheel device. The bucket wheel device is connected to the shaft hole of the receiving arm through a bucket wheel shaft. When the wheel bucket excavator is excavating, the bucket wheel device rotates around the bucket wheel shaft and rotates around the center of the large rotary device.

[0003] The wheel bucket excavator is a customized engineering machinery. The driving power of the bucket wheel device needs to be determined by the tangential cutting resistance received by the wheel bucket excavator during the excavation of materials. The rotary driving power of the excavator is mainly determined by the lateral cutting resistance received during the excavation. At the same time, the wheel bucket excavator also receives radial cutting resistance during the excavation, which has a great influence on the stress of the bucket wheel shaft. Therefore, it is very important to obtain the data of the three-directional cutting resistance, i.e. the tangential cutting resistance, the lateral cutting resistance and the radial cutting resistance, received by the wheel bucket excavator during the excavation of materials. These cutting resistance data are important basis for the design of the wheel bucket excavator.

[0004] The existing wheel bucket excavator usually has the function of detecting the driving power of the bucket wheel device and the rotary device, and indirectly obtains the tangential cutting resistance data to provide design basis for subsequent wheel bucket excavator design. However, the tangential cutting resistance and lateral cutting resistance data derived from the driving power are approximate values, and it is difficult to directly and truly synchronously obtain the multi-directional resistance detection data of the tangential cutting resistance, the lateral cutting resistance and the radial cutting resistance of the wheel bucket excavator. Therefore, it is difficult to design a high-quality wheel bucket excavator with higher driving power. SUMMARY

[0005] The present application provides a multi-directional resistance detection type wheel bucket excavator, which solves the problem that the conventional wheel bucket excavator is difficult to synchronously obtain the detection data of the multi-directional resistance received by the bucket wheel device. The present application can directly monitor and synchronously obtain three-directional resistance detection data, and the test device has high reliability.

[0006] The technical scheme adopted by the present application is: a multi-directional resistance detection type wheel bucket excavator, which comprises a bucket wheel device, a material receiving arm, a portal type bearing beam, a large rotation device and a walking device, which are assembled into an excavator body, and the technical key points are: the bucket wheel device is provided with a resistance test system, the resistance test system comprises a test bucket and a first data acquisition device installed on the bucket wheel device, the test bucket is fixed on the outer cylindrical surface of the bucket wheel device through four pin shaft sensors, the pin shaft sensors are arranged at the bucket opening part and the bucket bottom part of the test bucket respectively, the pin shaft sensor at the bucket bottom part is a three-way force measuring pin shaft sensor; the first data acquisition device is arranged at the non-discharging side of the bucket wheel body of the bucket wheel device and rotates synchronously with the test bucket, and the first data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting the collected data to a computer data analysis system, a positioning system module and a power supply, and the data acquisition module is connected to the pin shaft sensors through a test cable.

[0007] The excavator body is provided with a second test system, the second test system comprises an inclination sensor installed on the material receiving arm, a rotary encoder installed on the portal type bearing beam for testing the rotation angle of the portal type bearing beam, and a second data acquisition device installed on the portal type bearing beam, the second data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting the collected data to a computer data analysis system and a power supply, the inclination sensor and the rotary encoder are both connected to the data acquisition module of the second data acquisition system through test cables, and the second test system is time-synchronized with the resistance test system.

[0008] The first data acquisition device and the second data acquisition device both comprise a data storage module.

[0009] The first data acquisition device and the second data acquisition device are both provided with protective covers outside, and the test cables are provided with protective tubes outside.

[0010] The multi-directional resistance detection type wheel bucket excavator has the advantages and effects that: the resistance test system adopted by the multi-directional resistance detection type wheel bucket excavator comprises a test bucket on the bucket wheel device and a first data acquisition device, four pin shaft sensors are arranged at the bucket opening part and the bucket bottom part of the test bucket respectively, the first data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting the collected data to a computer data analysis system, a positioning system module and a power supply, and the data acquisition module is connected to the pin shaft sensors through a test cable, so that three-directional resistance detection data can be directly monitored and synchronously acquired, the test device has high reliability, and therefore the wheel bucket excavator capable of monitoring three-directional cutting resistance has the characteristics of simple structure, low cost and continuous and long-time accurate test of excavation force. The change of the excavation force can be monitored in real time during the work process, the manufacturers of the wheel bucket excavator can understand and master the characteristics of the excavated materials, load spectrum of the excavator can be accumulated, and valuable original test data can be accumulated for the design of subsequent wheel bucket excavators.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0011] The application will be further described below with reference to the drawings.

[0012] Figure 1 is a schematic diagram of the overall structure of an embodiment of the application;

[0013] Figure 2 is a schematic diagram of the structure of a test bucket of the application;

[0014] Figure 3 is a side view of a test bucket of the application;

[0015] Figure 4 is a sectional view along A-A of Figure 3 ;

[0016] Figure 5 is a schematic diagram of the connection structure of a rotary encoder of the application;

[0017] Figure 6 is a block diagram of the connection of a resistance test system and a second test system of the application.

[0018] Reference numerals in the drawings: 1 bucket wheel device, 2 test bucket, 3 test cable, 4 first data acquisition device, 5 bucket wheel shaft, 6 receiving arm, 7 inclination sensor, 8 portal carrier beam, 9 second data acquisition device, 10 rotary encoder, 11 slewing device, 12 travelling device, 13 pin shaft sensor, 14 three-way force measuring pin shaft sensor, 15 force sensor end positioning surface, 16 tangential cutting resistance, 17 lateral cutting resistance, 18 radial cutting resistance, 19 test bucket baffle. DETAILED DESCRIPTION

[0019] According to the accompanying Figures 1-5 Detailed description of the specific structure of the application, embodiments such as Figure 1 As shown in the drawings, a multi-directional resistance detection type wheel bucket excavator comprises a main excavator body assembled from a bucket wheel device 1, a receiving arm 6, a portal carrier beam 8, a slewing device 11 and a travelling device 12, and the bucket wheel device 1 is connected to a shaft hole on the receiving arm 6 through a bucket wheel shaft 5.

[0020] The bucket wheel device 1 is provided with a resistance test system, which comprises a test bucket 2 and a first data acquisition device 4 installed on the bucket wheel device, the test bucket is installed on the outer cylindrical surface of the bucket wheel device 1 through a force sensor, as shown in Figures 2 to 4As shown, the test bucket is fixed on the outer cylindrical surface of the bucket wheel device by two pin shaft sensors 13 and two three-way force pin shaft sensors 14, the pin shaft sensors 13 are symmetrically arranged at the bucket mouth of the test bucket, and the two three-way force pin shaft sensors 14 are symmetrically arranged at the bucket bottom, the force sensor is fixedly connected with the outer cylindrical surface of the test bucket 2 and the bucket wheel device 1 through the force sensor end positioning surface 15, and a group of test buckets can be used on the bucket wheel device.

[0021] The first data acquisition device adopts a commercially available rugged data acquisition system, the bucket wheel body is provided with a discharging side and a non-discharging side, and the first data acquisition device is arranged on the non-discharging side of the bucket wheel body of the bucket wheel device and rotates synchronously with the test bucket, as shown in Figure 6 As shown, the first data acquisition device includes a data acquisition module, a wireless signal transmission module, a GPS positioning system module and a charging battery, the wireless signal transmission module is used for transmitting the collected data to an external computer data analysis system, and the data acquisition module is connected with the pin shaft sensors through a test cable.

[0022] As a further improvement, a second test system can also be arranged on the excavator body, the second test system includes an inclination sensor 7 arranged on the receiving arm 6, a rotary encoder 10 arranged on the portal carrier beam 8 for testing the rotation angle of the portal carrier beam, and a second data acquisition device 9 arranged on the portal carrier beam, as shown in Figure 5 As shown, the rotary encoder is arranged in mesh with a large gear on the large rotary device through a small gear at the lower part. As shown in Figure 6 As shown, the second data acquisition device also includes a data acquisition module, a wireless signal transmission module for transmitting the collected data to a computer data analysis system and a power supply, the inclination sensor and the rotary encoder are connected to the data acquisition module of the second data acquisition system through a test cable, and the second test system is time-synchronized with the resistance test system.

[0023] The first data acquisition device and the second data acquisition device realize time synchronization of data in the two data acquisition systems. A data analysis system is installed in the computer data analysis system to store and process the data, thereby realizing real-time storage, real-time display and real-time analysis of the data. The second test system can obtain the test bucket posture corresponding to the real-time excavation resistance. Through the GPS positioning system module, the data synchronization of the two test systems not in the same rotation system is realized. The test bucket posture includes the up-down pitch angle of the test bucket receiving arm and the rotation angle of the receiving arm relative to the direction of travel of the track in the horizontal plane. The up-down pitch angle of the receiving arm is obtained through the inclination sensor arranged on the receiving arm. The rotation angle of the receiving arm relative to the direction of travel of the track in the horizontal plane is obtained through the rotary encoder arranged on the portal carrier beam.

[0024] As a further improvement, the first data acquisition device and the second data acquisition device each include a data storage module, and the data can be saved for a certain period of time.

[0025] As a further improvement, a protective cover is installed outside the first data acquisition device and the second data acquisition device, and a protective pipe is installed outside the test cable to prevent impact of materials.

[0026] The wheel bucket excavator capable of monitoring three-way cutting resistance has the characteristics of simple structure, low cost and continuous and long-time accurate test of digging force. The change of the digging force can be monitored in real time during the working process, the characteristics of the excavated materials are convenient for the wheel bucket excavator manufacturers to understand and master, and valuable original test data for the subsequent design of the wheel bucket excavator is accumulated.

[0027] In summary, the purposes of the present application are achieved.

Claims

1. A multi-directional resistance detecting type of wheel-bucket excavator comprising an excavator body assembled mainly by a bucket wheel device, a receiving arm, a portal type of load bearing beam, a large turning device, and a traveling device, characterized in that: The bucket wheel device is provided with a resistance test system, the resistance test system comprises a test bucket and a first data acquisition device installed on the bucket wheel device, the test bucket is fixed on the outer cylindrical surface of the bucket wheel device through four pin shaft sensors, the pin shaft sensors are arranged at the bucket mouth part and the bucket bottom part of the test bucket respectively, the pin shaft sensor at the bucket bottom part is a three-way force pin shaft sensor, the test bucket is fixed on the outer cylindrical surface of the bucket wheel device through two pin shaft sensors and two three-way force pin shaft sensors, the two pin shaft sensors are symmetrically arranged at the bucket mouth part of the test bucket, the two three-way force pin shaft sensors are symmetrically arranged at the bucket bottom part, and the end positioning surface of the pin shaft sensor is fixedly connected with the test bucket and the outer cylindrical surface of the bucket wheel device; the first data acquisition device is arranged at the non-discharging side of the bucket wheel body of the bucket wheel device and rotates synchronously with the test bucket, the first data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting collected data to a computer data analysis system, a positioning system module and a power supply, and the data acquisition module is connected with the pin shaft sensor through a test cable; and the test bucket has only one group.

2. The multi-directional resistance detecting wheel-bucket excavator according to claim 1, characterized in that: The excavator body is provided with a second test system, the second test system comprises an inclination sensor installed on the receiving arm, a rotary encoder installed on the portal type carrier beam for testing the rotation angle of the portal type carrier beam, and a second data acquisition device installed on the portal type carrier beam, the second data acquisition device comprises a data acquisition module, a wireless signal transmission module for transmitting collected data to a computer data analysis system and a power supply, the inclination sensor and the rotary encoder are connected with the data acquisition module of the second data acquisition system through test cables, and the second test system is time-synchronized with the resistance test system.

3. The multi-directional resistance detecting wheel-bucket excavator according to claim 2, characterized in that: The first data acquisition device and the second data acquisition device both comprise a data storage module.

4. The multi-directional resistance detecting wheel-bucket excavator according to claim 2, characterized in that: Protective covers are installed outside the first data acquisition device and the second data acquisition device, and protective wire tubes are installed outside the test cables.

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