CN103076193B - Grounding specific pressure testing device and testing method thereof - Google Patents
Grounding specific pressure testing device and testing method thereof Download PDFInfo
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- CN103076193B CN103076193B CN201210578737.2A CN201210578737A CN103076193B CN 103076193 B CN103076193 B CN 103076193B CN 201210578737 A CN201210578737 A CN 201210578737A CN 103076193 B CN103076193 B CN 103076193B
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Abstract
The invention discloses a grounding specific pressure testing device and a testing method thereof. The grounding specific pressure testing device comprises a box body, wherein the box body comprises a base plate, a side plate and a top plate; the side plate is positioned between the base plate and the top plate; the base plate is provided with a pressure sensor; the upper surface of the pressure sensor is fitted with the lower surface of the top plate; and the pressure sensor is used for detecting the pressure acting on the top. A special box body is provided with the pressure sensor; and the grounding specific pressure testing device has the advantages of being convenient to use, convenient to overhaul and high in measurement precision and the like, and capability of being used in grounding specific pressure testing of various equipment such as crawler belt cranes.
Description
Technical field
The present invention relates generally to the grounding pressure field tests of engineering machinery, specifically, relates to a kind of grounding pressure proving installation, and the method for testing of this grounding pressure proving installation.
Background technology
Grounding pressure is that engineering machinery is as the product design such as crawler crane, excavator key design parameter.For crawler crane, the size of grounding pressure numerical value determines the usable range of crawler crane on the one hand, also determines the requirement of crawler crane working-yard basement process on the other hand.
In prior art, the preparation method of crawler crane grounding pressure mainly contains theoretical calculation and tire grounding reverse Force meansurement method two kinds.
For theoretical calculation, its result relies on theoretical formula completely, and not any one test method and device can the accuracys that calculate of proof theory; If grounding pressure calculates inaccurate, the too high or too low basement process that all can affect working-yard.If test result is too low relative to reality, cause basement process undesirable, likely occur crawler crane security incident, cause great personnel and property loss; And if test result is too high, then basement process may be caused excessively strong, increase time and the cost of site operation.
For tire grounding reverse Force meansurement method, it is by buried for pressure transducer in ground, destroys debugging Slag, is unworthy using for reference.In addition, because pressure transducer heeling-in difficulty is comparatively large, generally only adopt a small amount of several pressure transducer (as 3), the measuring accuracy of grounding pressure and accuracy are not high yet.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of grounding pressure proving installation, can avoid exchanging examination hall ground and destroy.
Grounding pressure proving installation of the present invention, comprise casing, described casing comprises base plate, side plate and top board, described side plate is between described base plate and top board, described base plate is provided with pressure transducer, the upper surface of described pressure transducer is fitted the lower surface of described top board, and described pressure transducer is for detecting the pressure acted on described top board.
Further, described pressure transducer is cylindrical structural, and described base plate is provided with columnar fixed cover, and described pressure transducer is set in described fixed cover.
Further, the bottom of described pressure transducer and described base plate are provided with the first screw, described pressure transducer is fixedly connected with described base plate by the first screw through described first screw.
Further, the quantity of described pressure transducer is multiple, is arranged on described base plate regularly, forms the lattice arrangement of A × B, wherein A be more than or equal to 1 positive integer, B be more than or equal to 3 positive integer.
Further, the lower surface of described top board arranges the first parallel riser and the second riser, described side plate is sticked between described first riser and the second riser, described side plate, the first riser and the second riser are provided with the second screw, and described top board is fixedly connected with described side plate by the second screw through described second screw.
Further, described top board is made up of the polylith be set up in parallel.
Further, be provided with multiple horizontal and vertical staggered inner reinforced plate in described casing, described casing is divided into multiple lattice district by described inner reinforced plate, is provided with described pressure transducer in part or all of described lattice district.
Further, the upper surface of described inner reinforced plate and the upper surface of described pressure transducer contour.
Another aspect of the present invention, also provides a kind of grounding pressure method of testing, comprises the following steps:
Aforesaid grounding pressure proving installation and the subgrade case contour with it are laid on ground;
Equipment under test walks in above described top board and described subgrade case;
Pressure transducer in described casing sends pressure signal to controller;
Described controller, according to described pressure signal, carries out logical process and calculates the grounding pressure of equipment under test.
Further, the line of multiple described pressure transducer forms row, and the direction of travel of described equipment under test is vertical with the line direction of described pressure transducer.
Multiple pressure transducer is arranged in casing by the present invention, is laid on ground when grounding pressure is tested by casing and subgrade case, can obtain the grounding pressure distribution situation in engineering machinery walking process in real time.Compared with prior art, the present invention adopts special casing setting pressure sensor, does not need buried for pressure transducer under debugging Slag, avoids the destruction of exchanging examination hall ground; And, when pressure transducer breaks down, can easily casing and pressure transducer be dismantled, overhaul and be changed, very convenient to use.
In addition, because pressure transducer is easy for installation on casing, in a preferred embodiment of the invention, more pressure transducer can be assembled regularly as required, and form the lattice arrangement of A × B, therefore measuring accuracy and the accuracy of grounding pressure can be improved, on the one hand for grounding pressure theory calculate provides checking foundation, on the other hand also for the basement process of working-yard provides test foundation.
Therefore, the present invention not only can avoid, because site foundation process does not meet the demands, occurring the problem of crawler crane security incident, and can avoid because site foundation process is excessively strong, increases the problem of construction cost.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the grounding pressure proving installation of one embodiment of the invention;
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1;
Fig. 3 is the structural representation of the grounding pressure proving installation of another embodiment of the present invention;
Fig. 4 is the test mode figure of crawler crane in debugging field;
Fig. 5 is the schematic diagram of grounding pressure method of testing of the present invention.
Description of reference numerals:
Base plate-11 side plate-12 top board-13 inner reinforced plate-14 pressure transducer-2 fixed cover-3 first screw-41 second screw-42 first riser-1a second riser-1b subgrade case-5 equipment under test-6
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
It is the structural representation of the grounding pressure proving installation of one embodiment of the invention shown in Fig. 1.The grounding pressure proving installation of this embodiment comprises casing and position pressure transducer 2 in the inner, casing comprises base plate 11, side plate 12 and top board 13 as shown in Figure 1, side plate 12 is between base plate 11 and top board 13, base plate 11, side plate 12 and top board 13 surround box structure, preferably surround rectangular structure.Casing is as the skeleton of setting pressure sensor 2, and safeguard bit pressure transducer 2 in the inner, on the other hand, in grounding pressure test process, plays the effect of support level equipment under test 6 thereon on the one hand.
This pressure transducer 2 is arranged on base plate 11, and the lower surface of the upper surface laminating top board 13 of pressure transducer 2, pressure transducer 2 is for detecting the pressure acted on top board 13.When tested engineering vehicle walking is on this top board 13, the pressure born is passed to pressure transducer 2 by top board 13, so that the detection of pressure transducer 2.
This pressure transducer 2 can have multiple possible structure, preferably this pressure transducer 2 is cylindrical structural common in prior art, in order to the radial fixed constraint by pressure transducer 2, the grounding pressure proving installation of this embodiment also comprises columnar fixed cover 3, this fixed cover 3 is arranged on base plate 11, and pressure transducer 2 is set in fixed cover 3.This fixed cover 3 can be welded on base plate 11.
Further, removably connect between preferred pressure sensor 2 and base plate 11, the bottom of pressure transducer 2 and base plate 11 are provided with the first screw, pressure transducer 2 is fixedly connected with base plate 11 by the first screw 41 through the first screw, thus is convenient to the installation of pressure transducer 2, dismounting, maintenance and replacing.
The quantity of pressure transducer 2 can be one or more.In order to improve measuring accuracy, obtain more test point, the quantity of preferred pressure sensor 2 is multiple, and is arranged on base plate 11 regularly, forms the lattice arrangement of A × B, wherein A be more than or equal to 1 positive integer, B be more than or equal to 3 positive integer.
In the embodiment shown in fig. 1, A=4, B=10, be namely provided with 4 rows 10 and arrange 40 pressure transducers 2 altogether.With Fig. 1 unlike, in the embodiment shown in fig. 3, A=1, B=10, be namely provided with 1 row 10 arrange amount to 10 pressure transducers 2.Should be clear, A and B can also be other multiple possible quantity, and the present invention is not limited to this.
The side plate 12 of casing can adopt the modes such as welding to be fixedly installed on base plate 11, in addition, for the ease of dismounting, removably can be connected between top board 13 with side plate 12 by the mode such as to be spirally connected.As a kind of preferred implementation, as shown in Figure 2, the lower surface of top board 13 arranges the first parallel riser 1a and the second riser 1b, side plate 12 is sticked between the first riser 1a and the second riser 1b, side plate 12, first riser 1a and the second riser 1b is provided with the second screw, and top board 13 is fixedly connected with side plate 12 by the second screw 42 through the second screw.Distance between first riser 1a and the second riser 1b is corresponding with the thickness of side plate 12.
More preferably, top board 13 is made up of the polylith be set up in parallel, and for the top board 13 of an en-block construction, the pressure transducer 2 be positioned at below each piece of top board 13 is stressed more balanced, more accurately can reflect the grounding pressure of the equipment under test 6 be located thereon.Preferably the lower surface of two ends of each piece of top board 13 is provided with aforementioned first riser 1a and the second riser 1b, is convenient to location and installs.
In the embodiment shown in Fig. 1 and Fig. 3, top board 13 is longitudinally arranged, and its quantity is 10, namely identical with the quantity of the B in the lattice arrangement of A × B.Should be clear, at top board 13 horizontally set, when its quantity is A, technique effect of the present invention can be realized equally.
In order to strengthen the strength and stiffness of casing, in the embodiment shown in Fig. 1 and Fig. 3, be also provided with multiple horizontal and vertical staggered inner reinforced plate 14 in casing, casing is divided into multiple lattice district by inner reinforced plate 14, is provided with pressure transducer 2 in part or all of lattice district.In the embodiment shown in fig. 1, pressure transducer 2 is provided with in Ge Ge district; And in the embodiment shown in fig. 3, be only provided with pressure transducer 2 in Yi Liege district wherein.
Preferably when grounding pressure is tested, inner reinforced plate 14 also bears the pressure of the equipment under test 6 be located thereon, the upper surface of this inner reinforced plate 14 and the upper surface of pressure transducer 2 contour, namely the upper surface of this inner reinforced plate 14 and the lower surface of top board 13 are fitted.
With reference to figure 4 and Fig. 5, the method for testing of the grounding pressure proving installation of previous embodiment can comprise the following steps:
Step 1: the grounding pressure proving installation of previous embodiment and the subgrade case 5 contour with it are laid on ground.
With reference to figure 3, grounding pressure proving installation is only provided with one group (i.e. casing), and subgrade case 5 can be provided with many groups.
Step 2: equipment under test 6 walks in above top board 13 and subgrade case 5.
For crawler crane, need to arrange the two groups of subgrade cases 5 in left and right, the left and right crawler travel of crawler crane is on the test platform be made up of top board 13 and subgrade case 5.
Step 3: the pressure transducer 2 in casing sends pressure signal to controller.
When the creeper tread of crawler crane is through top board 13, pressure transducer 2 detects pressure signal, each pressure signal is sent to controller simultaneously.
Step 4: controller, according to pressure signal, carries out logical process and calculates the grounding pressure of equipment under test 6.
As shown in Figure 5, controller also can connect computer, by the process of computer data process software, can obtain grounding pressure distributed data and grounding pressure cloud charts in real time, demonstrate crawler crane grounding pressure distribution situation intuitively.
In order to ensure the accuracy of measurement data, preferably ensure that every block creeper tread is all through grounding pressure proving installation, for improving testing efficiency, the line of multiple pressure transducer 2 forms row, and the direction of travel of preferred crawler crane is vertical with the line direction of pressure transducer 2.In the embodiment shown in fig. 4, the length direction of pressure transducer 2 is the line direction of B sensor in the lattice arrangement of A × B.
Should be clear, except crawler crane, grounding pressure proving installation of the present invention can also be used for the test as multiple possible equipment such as excavators.
In sum, previous embodiment of the present invention adopts special casing setting pressure sensor 2, does not need buried for pressure transducer 2 under debugging Slag, avoids the destruction of exchanging examination hall ground; And, when pressure transducer 2 breaks down, can easily casing and pressure transducer 2 be dismantled, overhaul and be changed, very convenient to use.
In addition, previous embodiment pressure transducer 2 is easy for installation on casing, can assemble more pressure transducer 2 as required regularly, and form the lattice arrangement of A × B, therefore can improve measuring accuracy and the accuracy of grounding pressure.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a grounding pressure proving installation, it is characterized in that, comprise casing, described casing comprises base plate (11), side plate (12) and top board (13), described side plate (12) is positioned between described base plate (11) and top board (13), described base plate (11) is provided with pressure transducer (2), the upper surface of described pressure transducer (2) is fitted the lower surface of described top board (13), described pressure transducer (2) is for detecting the pressure acted on described top board (13), multiple horizontal and vertical staggered inner reinforced plate (14) is provided with in described casing, described casing is divided into multiple lattice district by described inner reinforced plate (14), described pressure transducer (2) is provided with in part or all of described lattice district.
2. grounding pressure proving installation according to claim 1, it is characterized in that, described pressure transducer (2) is cylindrical structural, described base plate (11) is provided with columnar fixed cover (3), described pressure transducer (2) is set in described fixed cover (3).
3. grounding pressure proving installation according to claim 2, it is characterized in that, the bottom of described pressure transducer (2) and described base plate (11) are provided with the first screw, and described pressure transducer (2) is fixedly connected with described base plate (11) by the first screw (41) through described first screw.
4. grounding pressure proving installation according to claim 1, it is characterized in that, the quantity of described pressure transducer (2) is multiple, be arranged on described base plate (11) regularly, form the lattice arrangement of A × B, wherein A be more than or equal to 1 positive integer, B be more than or equal to 3 positive integer.
5. grounding pressure proving installation according to claim 1, it is characterized in that, the lower surface of described top board (13) arranges parallel the first riser (1a) and the second riser (1b), described side plate (12) is sticked between described first riser (1a) and the second riser (1b), described side plate (12), the first riser (1a) and the second riser (1b) are provided with the second screw, and described top board (13) is fixedly connected with described side plate (12) by the second screw (42) through described second screw.
6. the grounding pressure proving installation according to any one of claim 1-5, is characterized in that, described top board (13) is made up of the polylith be set up in parallel.
7. grounding pressure proving installation according to claim 1, is characterized in that, the upper surface of described inner reinforced plate (14) and the upper surface of described pressure transducer (2) contour.
8. a grounding pressure method of testing, is characterized in that, comprises the following steps:
Grounding pressure proving installation described in any one of claim 1-7 and the subgrade case contour with it (5) are laid on ground;
Equipment under test (6) walks in described top board (13) and described subgrade case (5) top;
Pressure transducer (2) in described casing sends pressure signal to controller;
Described controller, according to described pressure signal, carries out logical process and calculates the grounding pressure of equipment under test (6).
9. grounding pressure method of testing according to claim 8, it is characterized in that, the line of multiple described pressure transducer (2) forms row, and the direction of travel of described equipment under test (6) is vertical with the line direction of described pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578737.2A CN103076193B (en) | 2012-12-27 | 2012-12-27 | Grounding specific pressure testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578737.2A CN103076193B (en) | 2012-12-27 | 2012-12-27 | Grounding specific pressure testing device and testing method thereof |
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| CN103076193A CN103076193A (en) | 2013-05-01 |
| CN103076193B true CN103076193B (en) | 2015-06-10 |
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| CN201210578737.2A Expired - Fee Related CN103076193B (en) | 2012-12-27 | 2012-12-27 | Grounding specific pressure testing device and testing method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663210B (en) * | 2013-12-13 | 2015-08-12 | 中联重科股份有限公司 | Caterpillar machinery method of controlling security, equipment, system and construction machinery and equipment |
| CN103743579B (en) * | 2014-01-02 | 2016-08-17 | 中国人民解放军63908部队 | A kind of caterpillar track ground pressure simulation test device |
| CN104627844A (en) * | 2014-12-10 | 2015-05-20 | 中联重科股份有限公司 | Engineering machinery as well as monitoring equipment, monitoring system and monitoring method for front ground endurance of engineering machinery |
| CN105067285A (en) * | 2015-07-30 | 2015-11-18 | 中国人民解放军装甲兵工程学院 | Test method for testing ground pressure of tracked vehicle |
| CN106644181A (en) * | 2017-02-17 | 2017-05-10 | 中国矿业大学(北京) | Method and device for monitoring load distribution of hydraulic support top beam |
| CN110208097B (en) * | 2019-04-26 | 2020-05-15 | 煤炭科学技术研究院有限公司 | Specific pressure test equipment and specific pressure and external loading test method |
| CN111910609B (en) * | 2020-07-31 | 2022-01-21 | 浙江三一装备有限公司 | Foundation bearing capacity test method |
| CN112113693B (en) * | 2020-09-11 | 2022-05-17 | 太原科技大学 | Dynamic testing system and testing method for specific grounding pressure of crawler equipment |
| CN112113694B (en) * | 2020-09-11 | 2022-05-20 | 太原科技大学 | Dynamic measuring device for ground pressure ratio of crawler device |
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| SU746241A1 (en) * | 1978-06-15 | 1980-07-07 | Челябинский Филиал Государственного Союзного Ордена Трудового Красного Знамени Научно-Исследовательского Тракторного Института | Stand for testing track drives |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06129952A (en) * | 1992-10-20 | 1994-05-13 | Yokohama Rubber Co Ltd:The | Tire testing device |
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2012
- 2012-12-27 CN CN201210578737.2A patent/CN103076193B/en not_active Expired - Fee Related
Patent Citations (4)
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|---|---|---|---|---|
| SU746241A1 (en) * | 1978-06-15 | 1980-07-07 | Челябинский Филиал Государственного Союзного Ордена Трудового Красного Знамени Научно-Исследовательского Тракторного Института | Stand for testing track drives |
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| 电子汽车衡承重台结构的比较;王景起;《起重运输机械》;20051231(第1期);19 * |
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