CN103076193A - 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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- CN103076193A CN103076193A CN2012105787372A CN201210578737A CN103076193A CN 103076193 A CN103076193 A CN 103076193A CN 2012105787372 A CN2012105787372 A CN 2012105787372A CN 201210578737 A CN201210578737 A CN 201210578737A CN 103076193 A CN103076193 A CN 103076193A
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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 a key design parameter of engineering machinery such as the product designs such as crawler crane, excavator.Take crawler crane as example, the size of grounding pressure numerical value has determined the usable range of crawler crane on the one hand, has also determined on the other hand the requirement that crawler crane working-yard ground is processed.
In the prior art, the preparation method of crawler crane grounding pressure mainly contains two kinds of theoretical calculation and tire ground connection counter-force methods of testing.
For theoretical calculation, its result relies on theoretical formula fully, does not have the accuracy that any test method and device can proof theory calculate; If it is inaccurate that grounding pressure calculates, the too high or too low ground that all can affect the working-yard is processed.If test result is excessively low with respect to reality, cause ground to process undesirable, the crawler crane security incident might appear, cause great personnel and property loss; And if test result is too high, then may cause ground to process strong, increase time and the cost of site operation.
For tire ground connection counter-force method of testing, it is that pressure transducer is buried in ground, destroys the debugging Slag, is unworthy using for reference.In addition, because pressure transducer heeling-in difficulty is larger, generally only adopt a small amount of several pressure transducer (such 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 the 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, be provided with pressure transducer on the described base plate, the fit lower surface of described top board of the upper surface of described pressure transducer, described pressure transducer is for detection of the pressure that acts on the described top board.
Further, described pressure transducer is cylindrical structural, is provided with columnar fixed cover on the described base plate, and described pressure transducer is set in the described fixed cover.
Further, be provided with the first screw on the bottom of described pressure transducer and the described base plate, the first screw that passes described the first screw is fixedly connected with described pressure transducer with described base plate.
Further, the quantity of described pressure transducer is a plurality of, is arranged at regularly on the described base plate, and the dot matrix that forms A * B is arranged, and wherein A is the positive integer more than or equal to 1, and B is the positive integer more than or equal to 3.
Further, the lower surface of described top board arranges the first parallel riser and the second riser, described side plate is sticked between described the first riser and the second riser, be provided with the second screw on described side plate, the first riser and the second riser, the second screw that passes described the second screw is fixedly connected with described top board with described side plate.
Further, described top board is comprised of the polylith that is set up in parallel.
Further, be provided with a plurality of horizontal and vertical staggered inner reinforced plates in the described casing, described inner reinforced plate is divided into a plurality of lattice district with described casing, and part or all of described lattice are provided with described pressure transducer in the district.
Further, the upper surface of the upper surface of described inner reinforced plate and described pressure transducer is contour.
Another aspect of the present invention also provides a kind of grounding pressure method of testing, may further comprise the steps:
Aforesaid grounding pressure proving installation and the subgrade case contour with it are tiled on the ground;
Equipment under test walks in described top board and described subgrade case top;
Pressure transducer in the described casing sends pressure signal to controller;
Described controller is according to described pressure signal, carries out logical process and calculates the grounding pressure of equipment under test.
Further, the line of a plurality of described pressure transducers forms row, the line perpendicular direction of the direction of travel of described equipment under test and described pressure transducer.
The present invention is arranged at a plurality of pressure transducers in the casing, when grounding pressure is tested casing and subgrade case is tiled on the ground, can obtain in real time the grounding pressure distribution situation in the engineering machinery walking process.Compared with prior art, the present invention adopts special-purpose casing setting pressure sensor, does not need pressure transducer buried in debugging under the Slag destruction of having avoided exchanging the examination hall ground; And, when pressure transducer breaks down, can dismantle, overhaul and change casing and pressure transducer easily, very convenient to use.
In addition, because pressure transducer is easy for installation on casing, in the preferred embodiment of the present invention, can assemble regularly as required more pressure transducer, and the dot matrix that forms A * B is arranged, therefore can improve measuring accuracy and the accuracy of grounding pressure, calculating for grounding pressure is theoretical on the one hand provides the checking foundation, and also processing for the ground of working-yard on the other hand provides the test foundation.
Therefore, the present invention not only can avoid processing because of on-the-spot ground and not meet the demands, and the problem of crawler crane security incident occurs, and can avoid because of on-the-spot ground processed strong, the problem of increase construction cost.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction 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 among Fig. 1;
Fig. 3 is the structural representation of the grounding pressure proving installation of another embodiment of the present invention;
Fig. 4 is that crawler crane is at the test mode figure of 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 the first screw-41 the second screw-42 the first riser-1a the second riser-1b subgrade case-5 equipment under test-6
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the present invention can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Shown in Figure 1 is the structural representation of the grounding pressure proving installation of one embodiment of the invention.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 the 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 the base plate 11, the lower surface of the upper surface applying top board 13 of pressure transducer 2, and pressure transducer 2 is for detection of the pressure that acts on the top board 13.When tested engineering vehicle walking was on this top board 13, the pressure that bears was 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, preferred this pressure transducer 2 is cylindrical structural common in the prior art, for the radially fixed constraint with pressure transducer 2, the grounding pressure proving installation of this embodiment also comprises columnar fixed cover 3, this fixed cover 3 is arranged on the base plate 11, and pressure transducer 2 is set in the fixed cover 3.This fixed cover 3 can be welded on the base plate 11.
Further, removably connect between preferred pressure sensor 2 and the base plate 11, bottom and base plate 11 at pressure transducer 2 are provided with the first screw, the first screw 41 that passes the first screw is fixedly connected with pressure transducer 2 with base plate 11, thereby is convenient to installation, dismounting, maintenance and the replacing of pressure transducer 2.
The quantity of pressure transducer 2 can be for one or more.In order to improve measuring accuracy, obtain more test point, the quantity of preferred pressure sensor 2 is a plurality of, and is arranged at regularly on the base plate 11, and the dot matrix that forms A * B is arranged, and wherein A is the positive integer more than or equal to 1, and B is the positive integer more than or equal to 3.
In the embodiment shown in fig. 1, A=4, B=10 namely is provided with 4 rows, 10 row and amounts to 40 pressure transducers 2.Different from Fig. 1 is, in the embodiment shown in fig. 3, A=1, B=10 namely is provided with 1 row, 10 row and amounts to 10 pressure transducers 2.Should be understood that, 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 mode such as welding to be fixedly installed on the base plate 11, in addition, for the ease of dismounting, can removably be connected by the mode such as be spirally connected between top board 13 and the side plate 12.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, be provided with the second screw on side plate 12, the first riser 1a and the second riser 1b, the second screw 42 that passes the second screw is fixedly connected with top board 13 with side plate 12.Distance between the first riser 1a and the second riser 1b is corresponding with the thickness of side plate 12.
More preferably, top board 13 is comprised of the polylith that is set up in parallel, and for the top board 13 of an en-block construction, the pressure transducer 2 that is positioned at each piece top board 13 below is stressed more balanced, more can accurately reflect the grounding pressure of the equipment under test 6 that is located thereon.The lower surface of two ends of preferred each piece top board 13 is provided with aforementioned the first riser 1a and the second riser 1b, is convenient to location and installation.
In Fig. 1 and embodiment shown in Figure 3, top board 13 vertically arranges, and its quantity is 10, and namely the quantity with B during the dot matrix of A * B is arranged is identical.Should be understood that, at top board 13 horizontally sets, when its quantity is A, can realize technique effect of the present invention equally.
In order to strengthen the strength and stiffness of casing, in Fig. 1 and embodiment shown in Figure 3, also be provided with a plurality of horizontal and vertical staggered inner reinforced plates 14 in the casing, inner reinforced plate 14 is divided into a plurality of lattice district with casing, partly or entirely is provided with pressure transducer 2 in the lattice district.In the embodiment shown in fig. 1, be provided with pressure transducer 2 in each lattice district; And in the embodiment shown in fig. 3, only be provided with pressure transducer 2 in the Yi Liege district therein.
Preferably when grounding pressure was tested, inner reinforced plate 14 also bore the pressure of the equipment under test 6 that is located thereon, and the upper surface of the upper surface of this inner reinforced plate 14 and pressure transducer 2 is contour, and namely the lower surface of the upper surface of this inner reinforced plate 14 and top board 13 is fitted.
With reference to figure 4 and Fig. 5, the method for testing of the grounding pressure proving installation of previous embodiment can may further comprise the steps:
Step 1: the grounding pressure proving installation of previous embodiment and the subgrade case 5 contour with it are tiled on the ground.
With reference to figure 3, the grounding pressure proving installation only is 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 top board 13 and subgrade case 5 tops.
Take crawler crane as example, two groups of subgrade cases 5 about need to arranging, the left and right sides crawler travel of crawler crane is on the test platform that is comprised of top board 13 and subgrade case 5.
Step 3: the pressure transducer 2 in the casing sends pressure signal to controller.
When the creeper tread of crawler crane passed through top board 13, pressure transducer 2 detected pressure signal, simultaneously each pressure signal is sent to controller.
Step 4: controller is 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, processes by the computer data process software, can obtain in real time grounding pressure distributed data and grounding pressure cloud charts, demonstrates intuitively crawler crane grounding pressure distribution situation.
In order to guarantee the accuracy of measurement data, guarantee that preferably every creeper tread all passes through the grounding pressure proving installation, for improving testing efficiency, the line of a plurality of pressure transducers 2 forms row, the direction of travel of preferred crawler crane and the line perpendicular direction of pressure transducer 2.In the embodiment shown in fig. 4, the line direction of B sensor during the length direction of pressure transducer 2 dot matrix that is A * B is arranged.
Should be understood that, except crawler crane, grounding pressure proving installation of the present invention can also be used for the test such as the multiple possible equipment such as excavator.
In sum, previous embodiment of the present invention adopts special-purpose casing setting pressure sensor 2, does not need pressure transducer 2 buried in debugging under the Slag destruction of having avoided exchanging the examination hall ground; And, when pressure transducer 2 breaks down, can dismantle, overhaul and change casing and pressure transducer 2 easily, very convenient to use.
In addition, previous embodiment pressure transducer 2 is easy for installation on casing, can assemble regularly as required more pressure transducer 2, and forms the dot matrix arrangement of A * B, therefore can improve measuring accuracy and the accuracy of grounding pressure.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. 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 the top board (13), be provided with pressure transducer (2) on the described base plate (11), the fit lower surface of described top board (13) of the upper surface of described pressure transducer (2), described pressure transducer (2) is for detection of the pressure that acts on the described top board (13).
2. grounding pressure proving installation according to claim 1, it is characterized in that, described pressure transducer (2) is cylindrical structural, is provided with columnar fixed cover (3) on the described base plate (11), and described pressure transducer (2) is set in the described fixed cover (3).
3. grounding pressure proving installation according to claim 2, it is characterized in that, be provided with the first screw on the bottom of described pressure transducer (2) and the described base plate (11), the first screw (41) that passes described the first screw is fixedly connected with described pressure transducer (2) with described base plate (11).
4. grounding pressure proving installation according to claim 1 is characterized in that, the quantity of described pressure transducer (2) is a plurality of, be arranged at regularly on the described base plate (11), the dot matrix that forms A * B is arranged, and wherein A is the positive integer more than or equal to 1, and B is the positive integer more than or equal to 3.
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 the first riser (1a) and the second riser (1b), be provided with the second screw on described side plate (12), the first riser (1a) and the second riser (1b), the second screw (42) that passes described the second screw is fixedly connected with described top board (13) with described side plate (12).
6. each described grounding pressure proving installation is characterized in that according to claim 1-5, and described top board (13) is comprised of the polylith that is set up in parallel.
7. each described grounding pressure proving installation according to claim 1-5, it is characterized in that, be provided with a plurality of horizontal and vertical staggered inner reinforced plates (14) in the described casing, described inner reinforced plate (14) is divided into a plurality of lattice district with described casing, and part or all of described lattice are provided with described pressure transducer (2) in the district.
8. grounding pressure proving installation according to claim 6 is characterized in that, the upper surface of the upper surface of described inner reinforced plate (14) and described pressure transducer (2) is contour.
9. a grounding pressure method of testing is characterized in that, may further comprise the steps:
Each described grounding pressure proving installation of claim 1-8 and the subgrade case (5) contour with it are tiled on the ground;
Equipment under test (6) walks in described top board (13) and described subgrade case (5) top;
Pressure transducer (2) in the described casing sends pressure signal to controller;
Described controller carries out logical process and calculates the grounding pressure of equipment under test (6) according to described pressure signal.
10. grounding pressure method of testing according to claim 9 is characterized in that, the line of a plurality of described pressure transducers (2) forms row, the direction of travel of described equipment under test (6) and the line perpendicular direction of described pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210578737.2A CN103076193B (en) | 2012-12-27 | 2012-12-27 | Grounding specific pressure testing device and testing method thereof |
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| CN201210578737.2A CN103076193B (en) | 2012-12-27 | 2012-12-27 | Grounding specific pressure testing device and testing method thereof |
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| CN103076193A true CN103076193A (en) | 2013-05-01 |
| CN103076193B CN103076193B (en) | 2015-06-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743579A (en) * | 2014-01-02 | 2014-04-23 | 中国人民解放军63908部队 | 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 |
| 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 |
| 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 |
| CN110208097A (en) * | 2019-04-26 | 2019-09-06 | 煤炭科学技术研究院有限公司 | Than pressure testing equipment, than pressure and outer load test method |
| CN111910609A (en) * | 2020-07-31 | 2020-11-10 | 浙江三一装备有限公司 | Foundation bearing capacity test method |
| CN112113693A (en) * | 2020-09-11 | 2020-12-22 | 太原科技大学 | Dynamic testing system and testing method for specific grounding pressure of crawler equipment |
| CN112113694A (en) * | 2020-09-11 | 2020-12-22 | 太原科技大学 | Dynamic measuring device for specific grounding pressure of crawler device |
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Cited By (12)
| 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 |
| CN103743579A (en) * | 2014-01-02 | 2014-04-23 | 中国人民解放军63908部队 | Caterpillar track ground pressure simulation test device |
| 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 |
| CN110208097A (en) * | 2019-04-26 | 2019-09-06 | 煤炭科学技术研究院有限公司 | Than pressure testing equipment, than pressure and outer load test method |
| 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 |
| CN111910609A (en) * | 2020-07-31 | 2020-11-10 | 浙江三一装备有限公司 | Foundation bearing capacity test method |
| CN112113693A (en) * | 2020-09-11 | 2020-12-22 | 太原科技大学 | Dynamic testing system and testing method for specific grounding pressure of crawler equipment |
| CN112113694A (en) * | 2020-09-11 | 2020-12-22 | 太原科技大学 | Dynamic measuring device for specific grounding pressure of crawler device |
| 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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| CN103076193B (en) | 2015-06-10 |
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