CN113567165A - Excavator excavation resistance test device - Google Patents
Excavator excavation resistance test device Download PDFInfo
- Publication number
- CN113567165A CN113567165A CN202110827999.7A CN202110827999A CN113567165A CN 113567165 A CN113567165 A CN 113567165A CN 202110827999 A CN202110827999 A CN 202110827999A CN 113567165 A CN113567165 A CN 113567165A
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- moving device
- excavator
- material groove
- excavating
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000009412 basement excavation Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an excavating resistance test device of an excavator, which comprises a gantry support, wherein a material groove device is movably arranged on the gantry support, the material groove device is connected with a vertical moving device used for driving the material groove device to vertically move along the gantry support, the vertical moving device is connected with a horizontal moving device used for driving the material groove device to horizontally move, a bucket rotating device is arranged on the gantry support, the vertical moving device and the horizontal moving device are matched with the bucket rotating device to move to form an actual excavating track, and the resistance of the bucket rotating device in the vertical direction and the horizontal direction is measured in a simulation mode. The material tank device can contain any type of materials according to needs, the vertical moving device and the horizontal moving device are matched with the bucket rotating device to move to form an actual excavating track, the resistance of the bucket rotating device in the vertical direction and the horizontal direction is measured in a simulation mode, direct measurement can be achieved, a complex resolving process is avoided, the excavating track is convenient to control, and the excavating resistance is accurate to measure.
Description
Technical Field
The invention relates to the technical field of excavator test, in particular to an excavator excavation resistance test device.
Background
The excavator is an engineering machine which is applied and plays an important role in numerous fields such as national defense industry, civil buildings, road and bridge construction and the like. The test and verification of the excavating resistance are necessary input when the excavator is researched and designed, the excavating resistance is equal to the excavating force in magnitude and opposite in direction, and the test and verification of the excavating resistance are important performance parameters of the excavator.
At present, the excavation resistance is tested by measuring actual pressures and displacements of a boom, an arm, and a bucket hydraulic cylinder in actual operation and calculating the stress of a bucket (work implement) by combining a mechanical model.
At present, the existing technical scheme is not directly used for measuring the excavating resistance and is mostly obtained through theoretical analysis. For example, relevant data of the actuator is measured and calculated according to the established mechanical model. The testing process of the technical scheme has more interference factors, the derivation of the mechanical model is complex and is easy to make mistakes, and the influence of the characteristics such as acceleration on the excavation resistance is not considered. Therefore, the existing scheme has high test cost, poor precision and theoretical defects.
Disclosure of Invention
The invention aims to provide a digging resistance test device of an excavator, which is convenient to control a digging track and accurate in digging resistance measurement.
The invention adopts the following technical scheme for realizing the aim of the invention:
the invention provides an excavating resistance test device of an excavator, which comprises a gantry support, wherein a material groove device is movably arranged on the gantry support, the material groove device is connected with a vertical moving device used for driving the material groove device to vertically move along the gantry support, the vertical moving device is connected with a horizontal moving device used for driving the material groove device to horizontally move, a bucket rotating device is arranged on the gantry support, the vertical moving device and the horizontal moving device are matched with the bucket rotating device to move to form an actual excavating track, and the resistance of the bucket rotating device in the vertical direction and the horizontal direction can be simulated and measured.
Furthermore, the bucket rotating device comprises a mounting seat erected on the gantry support, a third stepping motor is arranged on the mounting seat, and an output shaft of the third stepping motor is connected with a simulation bucket penetrating through the mounting seat through a transmission mechanism.
Further, the transmission mechanism comprises a coupler and a transmission shaft, the third stepping motor is connected with the transmission shaft through the coupler, and the transmission shaft is fixedly connected with the simulation bucket.
Furthermore, the vertical moving device comprises a frame, a screw rod transmission mechanism is arranged on the frame, and the output end of the screw rod transmission mechanism is connected with the material groove device through a first tension pressure sensor.
Further, lead screw drive mechanism including set up in first step motor on the frame, first step motor is connected with first lead screw through drive mechanism, threaded connection has first nut piece on the first lead screw, first draw pressure sensor set up in first nut piece with between the material groove device.
Furthermore, the material groove device comprises a material groove main body, a first stop block is arranged on the outer side wall of the material groove main body, and the first pull pressure sensor is fixed on the first stop block and the first nut block.
Further, horizontal migration device includes the base, be provided with second step motor on the base, second step motor is connected with the second lead screw through drive mechanism, threaded connection has the second nut piece on the second lead screw, the second nut piece with draw pressure sensor through the second between the frame and connect.
Furthermore, a bottom plate is arranged at the bottom of the frame, a second stop block is arranged on the bottom plate, the second pull pressure sensor is fixed on the second stop block and the second nut block, and a long slot hole used for placing the second lead screw is further formed in the bottom of the bottom plate along the length direction of the bottom plate.
Furthermore, a guide rail and a sliding block which are matched with each other to slide are arranged between the material groove device and the vertical moving device, one of the guide rail and the sliding block is arranged on the material groove device, and the other one of the guide rail and the sliding block is arranged on the vertical moving device.
Furthermore, the gantry support comprises four supports, each support is provided with a vertical beam, a cross beam is arranged between every two of the four vertical beams, and the mounting supports are mounted on the platform through foundation bolts.
The invention has the following beneficial effects:
the vertical moving device and the horizontal moving device are matched with the bucket rotating device to move to form an actual excavating track, resistance of the bucket rotating device in the vertical direction and the horizontal direction is measured in a simulating mode, the actual excavating track can be obtained through direct measurement, a complex resolving process is avoided, a soil theoretical model and a bucket interaction model can be verified, the excavating track is convenient to control, and excavating resistance is accurate.
Drawings
Fig. 1 is a schematic overall structure diagram of an excavator excavation resistance testing device provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gantry support in the excavating resistance test device of the excavator according to the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a bucket rotating device in an excavating resistance testing device of an excavator according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a material tank device in an excavator excavation resistance test device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a vertical moving device in an excavating resistance testing device of an excavator according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a horizontal moving device in an excavating resistance testing device of an excavator according to an embodiment of the invention.
Detailed Description
As shown in fig. 1-6, the invention provides an excavating resistance test device for an excavator, which comprises a gantry support 1, a bucket rotating device 2, a material tank device 3, a vertical moving device 4 and a horizontal moving device 5;
the gantry support 1 and the horizontal moving device 5 are fixed on the platform through foundation bolts, the bucket rotating device 2 is installed on the gantry support 1 through bolts, the material groove device 3 is installed on the vertical moving device 4 and is driven and guided through a screw rod and a sliding block set, and the horizontal moving device 5 and the vertical moving device 4 are guided and connected through the sliding block set.
The gantry support 1 is a frame welded by an I-shaped steel structure, and mainly comprises supports 1-1, vertical beams 1-2 and cross beams 1-3 as a supporting device of the test device, wherein the four mounting supports 1-1 are mounted on a platform through foundation bolts.
The bucket rotating device 2 is composed of a third stepping motor 2-1, a coupler 2-2, a motor support 2-3, a transmission shaft 2-4, a simulation bucket 2-5 and a mounting seat 2-6. The third step is that the motor 2-1 is arranged on the motor support 2-3, the motor support 2-3 is arranged on the mounting seat 2-6 through a bolt, the third step is that the motor 2-1 is connected with the transmission shaft 2-4 through the coupler 2-2, and the transmission shaft 2-4 is connected with the simulation bucket 2-5 through a key.
The material tank device 3 is an open box-shaped structure formed by welding steel plates, soil required by experiments can be placed in the open box-shaped structure, and the wall surface of the side wall of the structure can be replaced by glass, so that the material form in the experiment process can be observed conveniently. The up-and-down movement of the material groove device 3 is guided by a guide rail and sliding block mechanism at four corners, a sliding block 3-5 is arranged on a material groove main body 3-1, and a guide rail is arranged on a vertical moving device 4. The sliding block 3-5 is installed on the sliding block installation seat 3-4 through a bolt, and the first S-shaped pull pressure sensor 3-2 is fixed on the stop block 3-3 and the first nut block 4-5 of the vertical moving device 4 through a bolt.
The vertical moving device 4 is composed of a frame 4-1, a first motor mounting seat 4-2, a first stepping motor 4-3, a first screw rod 4-4, a first nut block 4-5, a screw rod fixing seat 4-6, a first S-shaped pull pressure sensor 4-7, a stop block 4-8, a slide rail 4-9 and a bottom plate 4-10, wherein the frame 4-1 is formed by splicing and welding standard square pipes, a screw rod transmission mechanism is arranged at the short edge of the frame 4-1, the first stepping motor 4-3 is arranged above the frame 4-1 through the first motor mounting seat 4-2, the first nut block 4-5 is arranged on the first screw rod 4-4, the S-shaped pull pressure sensor 4-7 is arranged between the first nut block 4-5 and the material groove device 3, the first stepping motor 4-3 rotates to drive the first screw rod 4-4 to rotate, the first screw rod 4-4 drives the first nut block 4-5 to move up and down, and the material groove device 3 is fixed relative to the first nut block 4-5, so that the up and down movement and the force measurement of the material groove device 3 are realized. The upright post of the frame 4-1 is provided with a slide rail 4-9 to realize the guide of the up-and-down movement of the material groove device 3. The frame 4-1 is fixed on the bottom plate 4-10 through bolts, the bottom plate 4-10 is provided with a rectangular long slotted hole in the length direction, a screw rod is installed in the horizontal direction, and a stop block 4-8 and a second S-shaped pull pressure sensor 4-7 are attached.
The horizontal moving device 5 is composed of 5-8 parts of a second stepping motor, 5-7 parts of a second motor mounting base, 5-6 parts of a guide rail, 5-5 parts of a second nut block, 5-4 parts of a second screw rod, 5-3 parts of an I-beam base, 5-2 parts of a support and 5-1 parts of a screw rod mounting base. The second stepping motor 5-8 is fixed on the I-beam base 5-3 through a second motor mounting seat 5-7, the second screw rod 5-4 is connected with the second stepping motor 5-8, the second screw rod 5-4 rotates to drive the second nut block 5-5 to move linearly, the second nut block 5-5 is connected with the stop block 4-8 on the bottom plate 4-10 through a second S-shaped tension and pressure sensor 4-7, and therefore horizontal movement and force measurement of the vertical moving device 4 are achieved.
And a third step motor 2-1 drives the simulation bucket 2-5 to rotate, a second step motor 5-8 drives the horizontal and vertical moving device 4 to move in the horizontal direction, and a first step motor 4-3 drives the material groove device 3 to move in the vertical direction, so that an actual digging track is formed.
The second stepping motors 5-8 drive the horizontal vertical moving device 4 to move in the horizontal direction, interaction force exists between the horizontal vertical moving device and the second stepping motor, the magnitude and the direction of the interaction force can be collected by the second S-shaped pulling and pressing force sensors 4-7, and the interaction force is connected with data collection equipment to be read and displayed, namely the resistance of the bucket 2-5 in the horizontal direction is simulated.
The first stepping motor 4-3 drives the water material groove device 3 to move in the vertical direction, interaction force exists between the water material groove device and the water material groove device, the magnitude and the direction of the interaction force can be collected by the first S-shaped pull pressure sensor 3-2, and the interaction force is connected with data collection equipment to be read and displayed, namely the resistance of the bucket 2-5 in the vertical direction is simulated.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The excavating resistance test device of the excavator is characterized by comprising a gantry support, wherein a material groove device is movably arranged on the gantry support, the material groove device is connected with a vertical moving device used for driving the material groove device to do vertical motion along the gantry support, the vertical moving device is connected with a horizontal moving device used for driving the material groove device to do horizontal motion, a bucket rotating device is arranged on the gantry support, the vertical moving device and the horizontal moving device are matched with the bucket rotating device to move to form an actual excavating track, and the resistance of the bucket rotating device in the vertical direction and the horizontal direction can be simulated and measured.
2. The excavating resistance testing device of the excavator according to claim 1, wherein the bucket rotating device comprises a mounting seat erected on the gantry support, a third stepping motor is arranged on the mounting seat, and an output shaft of the third stepping motor is connected with a simulation bucket penetrating through the mounting seat through a transmission mechanism.
3. The excavator excavation resistance test device of claim 2, wherein the transmission mechanism comprises a coupling and a transmission shaft, the third stepping motor is connected with the transmission shaft through the coupling, and the transmission shaft is fixedly connected with the simulation bucket.
4. The excavator excavating resistance testing device according to any one of claims 1 to 3, wherein the vertical moving device comprises a frame, a screw rod transmission mechanism is arranged on the frame, and an output end of the screw rod transmission mechanism is connected with the material tank device through a first pulling and pressing sensor.
5. The excavator excavating resistance testing device according to claim 4, wherein the screw transmission mechanism comprises a first stepping motor arranged on the frame, the first stepping motor is connected with a first screw through the transmission mechanism, a first nut block is in threaded connection with the first screw, and the first pull pressure sensor is arranged between the first nut block and the material groove device.
6. The excavator excavating resistance test device according to claim 5, wherein the material tank device comprises a material tank main body, a first stop block is arranged on the outer side wall of the material tank main body, and the first pull pressure sensor is fixed on the first stop block and the first nut block.
7. The excavator excavating resistance testing device as claimed in claim 4, wherein the horizontal moving device comprises a base, a second stepping motor is arranged on the base, the second stepping motor is connected with a second lead screw through a transmission mechanism, a second nut block is connected to the second lead screw in a threaded manner, and the second nut block is connected with the frame through a second tension and pressure sensor.
8. The excavating resistance testing device of the excavator according to claim 7, wherein a bottom plate is arranged at the bottom of the frame, a second stop block is arranged on the bottom plate, the second pulling and pressing force sensor is fixed on the second stop block and the second nut block, and a long slot hole for placing the second screw rod is further formed in the bottom of the bottom plate along the length direction of the bottom plate.
9. The excavating resistance testing device of the excavator according to claim 1, wherein a guide rail and a slide block which are matched with each other and slide are arranged between the material groove device and the vertical moving device, one of the guide rail and the slide block is arranged on the material groove device, and the other one of the guide rail and the slide block is arranged on the vertical moving device.
10. The excavating resistance testing device of the excavator according to claim 1, wherein the gantry support comprises four supports, each support is provided with a vertical beam, a cross beam is arranged between every two of the four vertical beams, and the mounting supports are mounted on the platform through anchor bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827999.7A CN113567165A (en) | 2021-07-22 | 2021-07-22 | Excavator excavation resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827999.7A CN113567165A (en) | 2021-07-22 | 2021-07-22 | Excavator excavation resistance test device |
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| Publication Number | Publication Date |
|---|---|
| CN113567165A true CN113567165A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110827999.7A Pending CN113567165A (en) | 2021-07-22 | 2021-07-22 | Excavator excavation resistance test device |
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| CN (1) | CN113567165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264400A (en) * | 2021-12-10 | 2022-04-01 | 徐州徐工挖掘机械有限公司 | Dynamic testing device and testing method for excavating resistance of excavator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1751269A1 (en) * | 1990-07-13 | 1992-07-30 | Днепропетровский инженерно-строительный институт | Stand for researching earth digging process by excavator- dragline bucket |
| CN104515844A (en) * | 2014-12-29 | 2015-04-15 | 江苏师范大学 | Mechanical property testing system for testing excavator construction area |
| CN107764575A (en) * | 2017-09-20 | 2018-03-06 | 华南农业大学 | A kind of root crop vibrates Mining Test platform |
| CN207366121U (en) * | 2017-11-07 | 2018-05-15 | 长安大学 | A kind of excavating resistance on excavator indirect measurement system |
| CN207987860U (en) * | 2018-03-07 | 2018-10-19 | 北京交通大学 | Navigation channel, excavation simulation test device for Geotechnical Centrifugal Model Test |
| CN209311109U (en) * | 2018-11-29 | 2019-08-27 | 天津科技大学 | Bionical touching soil test specimen excavating resistance test macro |
| CN212988778U (en) * | 2020-10-10 | 2021-04-16 | 徐州徐工挖掘机械有限公司 | Excavator bucket fatigue test device |
-
2021
- 2021-07-22 CN CN202110827999.7A patent/CN113567165A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1751269A1 (en) * | 1990-07-13 | 1992-07-30 | Днепропетровский инженерно-строительный институт | Stand for researching earth digging process by excavator- dragline bucket |
| CN104515844A (en) * | 2014-12-29 | 2015-04-15 | 江苏师范大学 | Mechanical property testing system for testing excavator construction area |
| CN107764575A (en) * | 2017-09-20 | 2018-03-06 | 华南农业大学 | A kind of root crop vibrates Mining Test platform |
| CN207366121U (en) * | 2017-11-07 | 2018-05-15 | 长安大学 | A kind of excavating resistance on excavator indirect measurement system |
| CN207987860U (en) * | 2018-03-07 | 2018-10-19 | 北京交通大学 | Navigation channel, excavation simulation test device for Geotechnical Centrifugal Model Test |
| CN209311109U (en) * | 2018-11-29 | 2019-08-27 | 天津科技大学 | Bionical touching soil test specimen excavating resistance test macro |
| CN212988778U (en) * | 2020-10-10 | 2021-04-16 | 徐州徐工挖掘机械有限公司 | Excavator bucket fatigue test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264400A (en) * | 2021-12-10 | 2022-04-01 | 徐州徐工挖掘机械有限公司 | Dynamic testing device and testing method for excavating resistance of excavator |
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