CN111561865B - Measuring device and measuring method for beam end curve of hydraulic support - Google Patents
Measuring device and measuring method for beam end curve of hydraulic support Download PDFInfo
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Abstract
The invention relates to a measuring device and a measuring method for a beam-end curve of a hydraulic support, wherein the measuring device comprises the hydraulic support, a measuring table bottom, a standard wall and a measuring mechanism, and the hydraulic support is arranged on the measuring table bottom; the standard wall is vertically arranged on the measuring table bottom; the measuring mechanism comprises a data receiving module, a first measuring unit, a second measuring unit and a third measuring unit, wherein the first measuring unit, the second measuring unit and the third measuring unit are all arranged on the hydraulic support and are connected with the data receiving module. The measuring device has a simple structure, and the cost investment of the measuring device is reduced; the measuring device is easy to install in the measuring process, and the measuring efficiency is effectively improved; the hydraulic support beam end curve is measured by adopting a plurality of measuring units, so that the accuracy of measured data is effectively improved, and a reliable data basis is provided for the production of the hydraulic support.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a device and a method for measuring a beam-end curve of a hydraulic support.
Background
The hydraulic support plays an important role in mining of mines such as coal mines and the like, is used as a mine mining support machine, is mainly used for supporting rock-soil layers, blocking rock-soil from falling off and can effectively guarantee safety in the mines in the mining process. The hydraulic support also provides a worker operating space for mining operation, and ensures the safe operation of the mining machine and the scraper conveyor, so that the safety of the mining machine and the scraper conveyor needs to be very important. For the design process of the hydraulic support, a more key design parameter is the design of a top beam front end curve, and the top beam front end curve is an important reference data for judging whether the designed hydraulic support meets the requirements or not.
The top beam front end curve is usually generated by an engineer through a three-dimensional model in a computer in a simulation way, and the actual curve graph of a product often has larger deviation from a computer-simulated curve graph. The structure of the existing testing device about displacement is very complicated and expensive, the testing process is complicated and needs to process a large amount of data, the testing efficiency is seriously influenced, and further the manufacturing cost and the production efficiency of the hydraulic support are influenced.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a device and a method for measuring a beam-end curve of a hydraulic support, which solve the technical problems of complicated structure and large error of measurement result of the measuring device.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a measuring device for a beam end curve of a hydraulic support comprises the hydraulic support, a measuring table bottom, a standard wall and a measuring mechanism, wherein the hydraulic support is arranged on the measuring table bottom;
the standard wall is vertically arranged on the measuring table bottom;
the measuring mechanism comprises a data receiving module, a first measuring unit, a second measuring unit and a third measuring unit, wherein the first measuring unit, the second measuring unit and the third measuring unit are all arranged on the hydraulic support and are connected with the data receiving module.
Optionally, the standard walls comprise walls, mounting bottom plates and a plurality of rib plates;
the mounting bottom plate is arranged on the measuring platform bottom;
the wall body is vertically connected with the mounting bottom plate;
the rib plate is of a right-angled triangle structure, one right-angled side of the rib plate is fixedly connected with the wall body, and the other right-angled side of the rib plate is fixedly connected with the mounting bottom plate.
Optionally, the hydraulic support comprises a base, a top beam, a shield beam, a balance jack, front connecting rods arranged in pairs, rear connecting rods arranged in pairs and stand columns arranged in pairs;
the first end of the top beam is rotatably connected with the first end of the shield beam;
the first end of the balance jack is connected with the shield beam, and the second end of the balance jack is connected with the top beam;
the first ends of the front connecting rod and the rear connecting rod are rotatably connected with the base, and the second ends of the front connecting rod and the rear connecting rod are rotatably connected with the shield beam;
the first end of the upright post is connected with the base through a spherical hinge, and the second end of the upright post is rotatably connected with the top beam;
the extension line of the top beam is perpendicular to the wall body, and the second end of the top beam is close to the wall body.
Optionally, the first measuring unit and the second measuring unit are both disposed at the second end of the top beam, and the third measuring unit is disposed on the side surface of the top beam and located at a joint of the top beam and the upright.
Optionally, the first measuring unit, the second measuring unit and the third measuring unit each include a magnetic attachment member and a laser range finder which are detachably connected, and the magnetic attachment member is detachably connected to the top beam;
the laser light of the laser range finders of the first measuring unit and the second measuring unit is perpendicular to the wall, and the laser light of the laser range finders of the third measuring unit is perpendicular to the measuring table bottom.
Further, the invention also provides a method for measuring the beam-end curve of the hydraulic support, which is applied to the measuring device, and the method comprises the following steps:
s1, adjusting the distance between the top beam and the measuring platform bottom to a set value;
s2, controlling the valve switches of the upright post and the balance jack to enable the top beam to rise to the highest point and then fall to the set value, and measuring the position data of the second end of the top beam through the measuring mechanism;
s3, repeating the step S2 to obtain a plurality of groups of position data;
and S4, drawing a graph according to the plurality of groups of position data.
Optionally, the set value is 800mm to 1000 mm.
Optionally, before step S1, the method further includes adjusting positions of the first measuring unit and the second measuring unit according to the measurement data of the first measuring unit and the measurement data of the second measuring unit, so that the measurement data of the first measuring unit and the measurement data of the second measuring unit are equal.
Optionally, the measuring the position data of the upright by the measuring mechanism includes: the measurement data of the third measurement unit is acquired, when the variation of the measurement data of the third measurement unit reaches a set gradient value, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are recorded, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are stored as the position data, and the set gradient value is 30 mm-50 mm.
Optionally, the plotting according to the plurality of sets of position data comprises: inputting a plurality of groups of position data into MATLAB software, drawing a line drawing through the MATLAB software, and generating the line drawing according to the line drawing.
(III) advantageous effects
The invention has the beneficial effects that: the measuring device has a simple structure, and the cost investment of the measuring device is reduced; the measuring device is easy to install in the measuring process, and the measuring efficiency is effectively improved; the hydraulic support beam end curve is measured by adopting a plurality of measuring units, so that the accuracy of measured data is effectively improved, and a reliable data basis is provided for the production of the hydraulic support.
Drawings
Fig. 1 is a schematic view of a perspective view of an embodiment 1 of a measuring device of a beam-end curve of a hydraulic support according to the present invention;
FIG. 2 is a schematic diagram of a top view of embodiment 1 of the apparatus for measuring the beam-end curve of the hydraulic support of FIG. 1;
FIG. 3 is a schematic diagram of a perspective view of a hydraulic mount of the apparatus for measuring beam-end curves of a hydraulic mount of the present invention;
FIG. 4 is a flow chart of a method of measuring a beam-end curve of a hydraulic support of the present invention;
fig. 5 is a flowchart of the specific steps of the method for measuring the beam-end curve of the hydraulic support according to the present invention.
[ description of reference ]
1: a third laser range finder; 2: a third magnetically attractive mount; 3: a second magnetically attractive mount; 4: a second laser rangefinder; 5: a first magnetically attractive mount; 6: a first laser range finder; 7: a standard wall; 701: a rib plate; 8: measuring the platform bottom; 9: a top beam; 10: a column; 11: a balance jack; 12: a front link; 13: covering the beam; 14: a rear connecting rod; 15: a base.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.
The embodiment of the invention provides a device for measuring a beam-end curve of a hydraulic support, which is used for solving the technical problems of complex structure and large error of a measuring result of the measuring device and comprises the hydraulic support, a measuring table bottom 8, a standard wall 7 and a measuring mechanism. The hydraulic support is arranged on the measuring table bottom 8, and the standard wall 7 is vertically arranged on the measuring table bottom 8. The measuring mechanism comprises a data receiving module, a first measuring unit, a second measuring unit and a third measuring unit, wherein the first measuring unit, the second measuring unit and the third measuring unit are all arranged on the hydraulic support and are all connected with the data receiving module. The measuring device has a simple structure, and the cost investment of the measuring device is reduced; the measuring device is easy to install in the measuring process, and the measuring efficiency is effectively improved; the hydraulic support beam end curve is measured by adopting a plurality of measuring units, so that the accuracy of measured data is effectively improved, and a reliable data basis is provided for the production of the hydraulic support.
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Description of specific embodiments section:
example 1: as shown in fig. 1, the invention provides a device for measuring a beam-end curve of a hydraulic support, which comprises the hydraulic support, a measuring table bottom 8, a standard wall 7 and a measuring mechanism. Hydraulic support installs on measuring the bench bottom 8, and the wall 7 of standard sets up perpendicularly on measuring the bench bottom 8, installs hydraulic support wall across wall 7 of standard to the wall 7 of standard comes hydraulic support beam-ends curve for referring to. The measuring mechanism comprises a data receiving module, a first measuring unit, a second measuring unit and a third measuring unit, wherein the first measuring unit, the second measuring unit and the third measuring unit are all arranged on the hydraulic support and are all connected with the data receiving module. The measuring device has a simple structure, and the cost investment of the measuring device is reduced; the measuring device is easy to install in the measuring process, and the measuring efficiency is effectively improved; the hydraulic support beam end curve is measured by adopting a plurality of measuring units, so that the accuracy of measured data is effectively improved, and a reliable data basis is provided for the production of the hydraulic support.
Further, referring to fig. 1, the standard wall 7 includes a wall body, a mounting base plate and a plurality of rib plates 701, the mounting base plate is disposed on the measuring platform bottom 8, and the wall body is vertically connected to the mounting base plate. In the preferred embodiment, the installation floor and the wall body are of an integral structure, one end of the wall body, which is connected with the measuring platform bottom 8, is bent into a right angle, so that the contact area between the wall body and the measuring platform bottom 8 is increased, and the installation stability is improved. The rib plate 701 is of a right-angled triangle structure, one right-angled side of the rib plate 701 is fixedly connected with the wall body, and the other right-angled side of the rib plate 701 is fixedly connected with the installation bottom plate. In a preferred embodiment, rib plates 701 may be installed on both sides of the wall body. The standard right-angled triangle structure is adopted as the rib plate 701, so that the connection stability between the wall body and the mounting bottom plate is improved, the mutually perpendicular relation between the wall body and the mounting bottom plate is effectively ensured, the wall body can be vertically mounted on the measuring platform bottom 8, and the measuring accuracy is effectively improved.
As shown in fig. 3, the hydraulic support includes a base 15, a roof beam 9, a shield beam 13, a balance jack 11, front links 12 arranged in pairs, rear links 14 arranged in pairs, and pillars 10 arranged in pairs. The first end of back timber 9 rotates with the first end of shield roof beam 13 to be connected, the first end of balance jack 11 is connected with shield roof beam 13, the second end of balance jack 11 is connected with back timber 9, the first end of preceding connecting rod 12 and back connecting rod 14 all rotates with base 15 to be connected, the second end of preceding connecting rod 12 and back connecting rod 14 all rotates with shield roof beam 13 to be connected, the first end and the base 15 ball pivot of stand 10 are connected, the second end and the back timber 9 of stand 10 rotate to be connected. The extension line of the top beam 9 is perpendicular to the wall body, and the second end of the top beam 9 is close to the wall body. The vertical wall of the construction site is simulated by the standard wall 7, the top beam 9 is used for supporting the top wall, and the top wall is vertical to the vertical wall in the construction process; in the measuring process, the vertical relation between the top beam 9 and the wall is used for simulating the installation mode of the hydraulic support on the construction site, and the measured data is ensured to be the same as the data generated in actual construction, so that the measuring accuracy is effectively improved.
Example 2: as shown in fig. 1 and 2, the first measuring unit and the second measuring unit are both disposed at the second end of the top beam 9, and the third measuring unit is disposed at the side of the top beam 9 and at the connection between the top beam 9 and the upright post 10. The first measuring unit and the second measuring unit are used for measuring the distance between the second end of the top beam 9 and the wall body, and the third measuring unit is used for measuring the distance between the connecting position of the top beam 9 and the upright post 10 and the measuring platform bottom 8.
Further, first measuring element, second measuring element and third measuring element all inhale installed part and laser range finder including can dismantling the magnetism of connection, and the installed part is inhaled to magnetism and can be dismantled with back timber 9 and be connected. Laser range finder adsorbs on back timber 9 through magnetism, and the installation is quick and convenient, can adjust laser range finder's mounted position at any time, has improved the efficiency of installation and debugging, can adapt to the installation and the test of multiple device, adopts laser range finder to measure the distance, and measurement accuracy is high, and measurement of efficiency is high, has guaranteed measured data's precision. Specifically, referring to fig. 1, the first measuring unit includes a first magnetic attraction mounting component 5 and a first laser range finder 6, the first laser range finder 6 is attracted to the first magnetic attraction mounting component 5, and the first magnetic attraction mounting component 5 is attracted to the top beam 9; the second measuring unit comprises a second magnetic attraction mounting piece 3 and a second laser range finder 4, the second laser range finder 4 is adsorbed on the second magnetic attraction mounting piece 3, and the second magnetic attraction mounting piece 3 is adsorbed on the top beam 9; the third measuring unit includes that the third magnetism inhales installed part 2 and third laser range finder 1, and third laser range finder 1 adsorbs on installed part 2 is inhaled to the third magnetism, and installed part 2 is inhaled to the third magnetism and is adsorbed on back timber 9. The laser light rays of the first laser range finder 6 and the second laser range finder 4 are perpendicular to the wall and used for measuring the distance between the second end of the top beam 9 and the wall; the laser light of the third laser range finder 1 is perpendicular to the measuring table bottom 8 and is used for measuring the distance from the joint of the top beam 9 and the upright post 10 to the measuring table bottom 8.
Further, the invention also provides a method for measuring a beam-end curve of a hydraulic support, which is applied to the measuring device, and as shown in fig. 4, the method comprises the following steps:
step S1, adjusting the distance between the top beam 9 and the measuring platform bottom 8 to a set value;
step S2, controlling the valve switches of the upright post 10 and the balance jack 11 to enable the top beam 9 to rise to the highest point and then fall to a set value, and measuring the position data of the second end of the top beam 9 through the measuring mechanism;
step S3, repeating the step S2, and acquiring a plurality of groups of position data;
and step S4, drawing a graph according to the plurality of groups of position data.
The measuring device is convenient and quick to install, the measuring method is simple, operation is easy, multiple groups of measurement are adopted, data precision is high, measured data are drawn into a curve graph, the position change condition of the top beam 9 can be clearly and simply reflected, and therefore measuring efficiency is effectively improved.
Furthermore, the set value is 800 mm-1000 mm, the preferred set value is 900mm, the measurement starting position is close to the starting position of the top beam 9 of the hydraulic support in the construction and installation process, and more accurate measurement data can be obtained.
Further, as shown in fig. 5, before step S1, the method further includes adjusting positions of the first measuring unit and the second measuring unit according to the measurement data of the first measuring unit and the measurement data of the second measuring unit, so that the measurement data of the first measuring unit and the measurement data of the second measuring unit are equal, and ensuring that the extension line of the short beam is perpendicular to the wall before the measurement starts, thereby improving accuracy of the measurement data.
More closely, measuring the position data of the mast 10 by means of the measuring means comprises: the measurement data of the third measurement unit is acquired, when the variation of the measurement data of the third measurement unit reaches a set gradient value, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are recorded, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are stored as position data, the gradient value is set to be 30 mm-50 mm, the set gradient is preferably 50mm, and the measurement efficiency is improved while the measurement precision is ensured.
Finally, plotting the curve from the plurality of sets of position data comprises: and inputting the plurality of groups of position data into MATLAB software, drawing a line drawing through the MATLAB software, and generating a curve graph according to the line drawing. Specifically, since the measurement data of the first measurement unit and the measurement data of the second measurement unit are equal, the distance between the top beam 9 and the wall is the data measured by the first measurement unit or the second measurement unit. Establishing a plane rectangular coordinate system, taking the distance from the top beam 9 to the measuring table bottom 8 as a horizontal axis coordinate, taking the distance from the top beam 9 to the wall body as a vertical axis coordinate, inputting data measured by the first measuring unit or the second measuring unit into a vertical axis, inputting data measured by the third measuring unit into a horizontal axis, sequentially connecting the intersection points of the data output measured by the first measuring unit or the second measuring unit and the data measured by the third measuring unit from a zero point to obtain a line graph, analyzing the line graph by using a matlab to generate a corresponding line graph, and thus obtaining a line graph of the position change of the top beam 9. The curve diagram can intuitively reflect the position change of the top beam 9, and the measuring efficiency is effectively improved.
The measuring device provided by the invention has a simple structure, and the cost investment of the measuring device is reduced; the measuring device is easy to install in the measuring process, and the measuring efficiency is effectively improved; the measuring method is simple, the data volume is small, the processing is easy, the curve of the beam end of the hydraulic support is measured by adopting a plurality of measuring units, the accuracy of measured data is effectively improved, and reliable data basis is provided for the production of the hydraulic support.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (7)
1. The device for measuring the beam end curve of the hydraulic support is characterized by comprising the hydraulic support, a measuring table bottom, a standard wall and a measuring mechanism, wherein the hydraulic support is arranged on the measuring table bottom;
the standard wall comprises a wall body and an installation bottom plate; the mounting bottom plate is arranged on the measuring platform bottom; the wall body is vertically connected with the mounting bottom plate;
the measuring mechanism comprises a data receiving module, and a first measuring unit, a second measuring unit and a third measuring unit which are all arranged on the hydraulic support, and the first measuring unit, the second measuring unit and the third measuring unit are all connected with the data receiving module;
the hydraulic support comprises a base, a top beam, a shield beam, a balance jack, front connecting rods arranged in pairs, rear connecting rods arranged in pairs and stand columns arranged in pairs;
the first end of the top beam is rotatably connected with the first end of the shield beam;
the first end of the balance jack is connected with the shield beam, and the second end of the balance jack is connected with the top beam;
the first ends of the front connecting rod and the rear connecting rod are rotatably connected with the base, and the second ends of the front connecting rod and the rear connecting rod are rotatably connected with the shield beam;
the first end of the upright post is connected with the base through a spherical hinge, and the second end of the upright post is rotatably connected with the top beam;
the extension line of the top beam is perpendicular to the wall body, and the second end of the top beam is close to the wall body;
the first measuring unit and the second measuring unit are arranged at the second end of the top beam, and the third measuring unit is arranged on the side surface of the top beam and is positioned at the connecting position of the top beam and the upright post;
the first measuring unit, the second measuring unit and the third measuring unit respectively comprise a magnetic suction mounting piece and a laser range finder which are detachably connected, and the magnetic suction mounting piece is detachably connected with the top beam;
the laser light of the laser range finders of the first measuring unit and the second measuring unit is perpendicular to the wall, and the laser light of the laser range finders of the third measuring unit is perpendicular to the measuring table bottom.
2. The measuring device of claim 1, wherein the standard wall further comprises a plurality of webs;
the rib plate is of a right-angled triangle structure, one right-angled side of the rib plate is fixedly connected with the wall body, and the other right-angled side of the rib plate is fixedly connected with the mounting bottom plate.
3. A method for measuring a beam-end curve of a hydraulic support, which is applied to the measuring device according to any one of claims 1-2, and is characterized in that the method comprises the following steps:
s1, adjusting the distance between the top beam and the measuring platform bottom to a set value;
s2, controlling the valve switches of the upright post and the balance jack to enable the top beam to rise to the highest point and then fall to the set value, and measuring the position data of the second end of the top beam through the measuring mechanism;
s3, repeating the step S2 to obtain a plurality of groups of position data;
and S4, drawing a graph according to the plurality of groups of position data.
4. The measurement method according to claim 3, wherein the set value is 800mm to 1000 mm.
5. The measuring method according to claim 3, wherein before step S1, the method further comprises adjusting the positions of the first measuring unit and the second measuring unit according to the measurement data of the first measuring unit and the measurement data of the second measuring unit to equalize the measurement data of the first measuring unit and the measurement data of the second measuring unit.
6. The measurement method according to claim 3, wherein the measuring the position data of the column by the measurement mechanism includes: the measurement data of the third measurement unit is acquired, when the variation of the measurement data of the third measurement unit reaches a set gradient value, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are recorded, the measurement data of the first measurement unit, the second measurement unit and the third measurement unit are stored as the position data, and the set gradient value is 30 mm-50 mm.
7. The measurement method of claim 3, wherein said plotting from the plurality of sets of position data comprises: inputting a plurality of groups of position data into MATLAB software, drawing a line drawing through the MATLAB software, and generating the line drawing according to the line drawing.
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