CN106195593B - A kind of installation displacement transducer is in the simple rack and its application method of main shaft - Google Patents
A kind of installation displacement transducer is in the simple rack and its application method of main shaft Download PDFInfo
- Publication number
- CN106195593B CN106195593B CN201610785416.8A CN201610785416A CN106195593B CN 106195593 B CN106195593 B CN 106195593B CN 201610785416 A CN201610785416 A CN 201610785416A CN 106195593 B CN106195593 B CN 106195593B
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- Prior art keywords
- main shaft
- hole
- displacement sensor
- positioning bolt
- bolt
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 5
- 238000009434 installation Methods 0.000 title abstract description 3
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a kind of simple rack, for two displacement transducers to be installed on into main shaft, the simple rack includes a right angle rack, the main body of the right angle rack is two mutually perpendicular cuboids, the bending place of the right angle rack is respectively arranged in described two mutually perpendicular cuboids along the protruding handle (handle shape is depending on support) in direction perpendicular to plane where the right angle rack, described two displacement transducers.Simple rack provided by the invention can right angle setting displacement transducer in polytypic main shaft, because it can be by two displacement transducers while right angle setting, it instead of with two single supports to install displacement transducer, installation is more convenient, and it is whard to control also to solve the problems, such as that two single supports carry out perpendicular positioning.
Description
Technical Field
The invention relates to the field of mechanical vibration and mechanical fault diagnosis, in particular to a simple support which can be suitable for quickly mounting a displacement sensor such as an eddy current displacement sensor on a main shaft to measure modal parameters.
Background
With the development of mechanical engineering technology, rotary machines are now used in various fields, such as aerospace, ships, power generation, robots, mines, and the like. The poor rotation of the rotating machine can have adverse effects on the main shaft and even the whole rotating machine, so that the monitoring and analysis of how to measure the vibration of each point of the main shaft are particularly concerned in various fields. In engineering, the shaft center track diagrams and modal parameters of spindle vibration with various diameters need to be measured to analyze and research whether the spindle vibration is normal. Therefore, how to provide a simple device which has simple structure, reliable performance, convenient assembly and disassembly and can quickly and vertically install two displacement sensors on any point of the main shaft becomes a technical problem.
Disclosure of Invention
The invention provides a simple support, which can be used for vertically mounting two displacement sensors on various types of main shafts so as to overcome the defects in the prior art.
The technical scheme of the invention is as follows:
the utility model provides a simple and easy support for install two displacement sensor on the main shaft, simple and easy support includes a right angle support, and this right angle support's main part is two mutually perpendicular cuboids, the department of buckling of right angle support outwards stretches out a handle along the planar direction in this right angle support place of perpendicular to, and the handle shape is according to the support, two displacement sensor install respectively in two mutually perpendicular cuboids.
In a preferred embodiment of the invention, a hollow slot is transversely formed in the middle of each cuboid along the length direction of the cuboid, the slot is a through hole, a bolt hole is formed in one end, far away from the bending part of the right-angle support, of each cuboid, the bolt hole is communicated with and coaxial with the hollow slot, a positioning bolt is arranged in the bolt hole, and a mounting hole for mounting the displacement sensor is formed in one end, screwed into the hollow slot, of the positioning bolt.
In an embodiment of the invention, the positioning bolt is fastened by a plurality of positioning nuts.
In a preferred embodiment of the present invention, each of the cuboids is provided with a scale on at least one side surface thereof and above and/or below the hollow slot, and correspondingly, the centers of the upper and lower sides of the mounting hole are provided with scale marks along the direction of the vertical central axis thereof.
In one embodiment of the invention, the right angle bracket is mounted on a magnetic clamping device capable of being adjusted up, down, left and right, and is aligned with a point on the spindle to be measured.
A method for measuring the vibration condition of a main shaft uses the simple bracket, and comprises the following steps:
firstly, diameter parameters of a main shaft and a gap measuring range of a displacement sensor are obtained, and the distance of a positioning bolt on a graduated scale is obtained by the radius of the main shaft, the measuring gap of the displacement sensor and the distance which the displacement sensor needs to extend out;
then screwing the positioning bolt into the hollow slotted hole of the cuboid to the calculated distance, and adopting a plurality of positioning nuts to fasten the positioning bolt;
then screwing the displacement sensor into the mounting hole at the tail end of the positioning bolt;
finally, mounting the right-angle bracket on a magnetic clamping device capable of being adjusted up, down, left and right, and aligning to a point to be measured on the main shaft;
and then starting the motor to measure the vibration condition on the main shaft.
Compared with the prior art, the invention has the following beneficial effects:
1. the simple bracket for vertically mounting the displacement sensor on the multi-type main shaft, provided by the invention, can simultaneously and vertically mount the two displacement sensors, replaces two independent brackets for mounting the displacement sensor, is more convenient to mount, and also solves the problem that the vertical positioning of the two independent brackets is difficult to control;
2. the vertical support is provided with the hollow slotted hole, so that the vertical support can adjust the mounting position of the displacement sensor by using the positioning bolt, and therefore, the vertical support can be suitable for measuring axis locus diagrams and modal parameters of various types of main shafts, and the trouble of customizing the displacement sensor support for different types of main shafts is eliminated;
3. the simple support is movable and can measure the vibration state of any point of the main shaft.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
FIGS. 1(a) and 1(b) are schematic structural views of a simple stent according to an embodiment of the present invention;
FIGS. 2(a) and 2(b) are schematic structural views of a rectangular bracket of the simple bracket according to the embodiment of the present invention;
FIG. 3(a), FIG. 3(b) and FIG. 3(c) are schematic structural views of a hexagon positioning bolt of the simple bracket according to the embodiment of the present invention;
fig. 4(a), 4(b) and 4(c) are schematic structural views of a hexagon nut of a simple bracket according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to specific embodiments.
Examples
The embodiment provides a simple support which can be used for quickly and vertically installing two displacement sensors such as an eddy current displacement sensor on a rotating main shaft and can be movably positioned at any point on the main shaft.
Referring to fig. 1(a) and 1(b), and fig. 2(a) and 2(b), the simple bracket of the present embodiment includes:
a right angle support 1, a cylindrical handle 4 outwards extends out at the 90-degree included angle of the right angle support 1, and the cylindrical handle 4 is used for other clamping devices to clamp the simple support and perform up-down, left-right adjustment and positioning of the simple support. In other embodiments of the invention, the handle may be other suitable shapes than cylindrical.
The body of the right-angled support 1 is two rectangular parallelepipeds 11, 12 at right angles.
Each cuboid is provided with a hollow slot in the middle for inserting a bolt, and the position of the hollow slot is shown in fig. 1(a) and fig. 1(b), and fig. 2(a) and fig. 2 (b). And the scale is correspondingly arranged on at least one side surface of the cuboid and positioned on the upper side and the lower side of the hollow slotted hole or on one side of the hollow slotted hole, and the scale is used for positioning the installation position of the displacement sensor. Specifically, one of the cuboids 11 is taken as an example, and a hollow slot 111 is formed in the middle.
A bolt hole is arranged at the tail end of each hollow slotted hole, and each positioning bolt 2 such as a hexagonal positioning bolt can be screwed into the hollow slotted hole for positioning. For example, the hollow slot 111 is provided with a bolt hole 114 at its rear end.
Two positioning bolts, each positioning bolt 2 has a bolt hole 21 at its end, see fig. 3(a), fig. 3(b) and fig. 3(c), and the bolt hole 21 is a mounting hole for screwing in and positioning the displacement sensor and also plays a role of fixing the displacement sensor.
Referring to fig. 2(a), a scale 5 is disposed on the upper side of the hollow slot on both side surfaces of the rectangular parallelepiped 11. The center of the upper and lower sides of the bolt hole 21 is marked with a scale mark 211, and the scale mark 211 is aligned with the scale 5 of the right-angle bracket 1 to accurately indicate the position of the positioning bolt 2. On the cuboid 12 and the positioning bolt 2 arranged thereon, a graduated scale and graduation lines are also arranged in the same way.
Two hexagon nuts 3 are provided at the head of the positioning bolt 2, and the positioning bolt 2 is fastened by the hexagon nuts so as not to be loosened. Fig. 4(a), fig. 4(b) and fig. 4(c) are schematic structural views of the hexagonal nut 3.
The method for measuring the vibration condition on the main shaft by using the simple bracket of the embodiment comprises the following steps:
firstly, diameter parameters of a spindle and a gap measuring range of a displacement sensor are obtained, and the distance of a hexagonal positioning bolt on a graduated scale is obtained by the radius of the spindle, the measuring gap of the displacement sensor and the distance which the displacement sensor needs to extend out;
then screwing the hexagonal positioning bolt into the hollow slotted hole to the distance obtained by the calculation, and adopting double nuts to fasten the hexagonal positioning bolt without loosening;
then screwing the displacement sensor into the bolt hole 21 at the tail end of the hexagonal positioning bolt 2, wherein the screwing length is proper;
finally, the right-angle bracket is arranged on a magnetic clamping device which can be adjusted up, down, left and right, and points to be measured on the main shaft are aligned;
and then starting the motor to measure the vibration condition on the main shaft.
The simple bracket for vertically mounting the displacement sensor on the multi-type main shaft can simultaneously and vertically mount the two displacement sensors, replaces two independent brackets for mounting the sensors, is more convenient to mount, and solves the problem that the vertical positioning of the two independent brackets is difficult to control.
The vertical support of the simple support provided by the invention is provided with the hollow slotted hole, so that the vertical support can adjust the mounting position of the displacement sensor by using the positioning bolt, and therefore, the simple support can be suitable for measuring the axle center locus diagrams and modal parameters of various types of main shafts, and the trouble of customizing the displacement sensor support for different types of main shafts is avoided.
The simple support provided by the invention is movable and can measure the vibration state of any point of the main shaft.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A simple support is used for mounting two displacement sensors on a main shaft and is characterized by comprising a right-angle support, the main body of the right-angle support is two cuboids which are perpendicular to each other, a handle extends outwards from the bending part of the right-angle support along the direction perpendicular to the plane of the right-angle support, and the two displacement sensors are respectively mounted on the two cuboids which are perpendicular to each other; wherein,
a hollow slotted hole is transversely formed in the middle of each cuboid along the length direction of the cuboid, the slotted hole is a through hole, a bolt hole is formed in one end, away from the bending part of the right-angle support, of each cuboid, the bolt hole is communicated and coaxial with the hollow slotted hole, a positioning bolt is arranged in the bolt hole, and a mounting hole for mounting the displacement sensor is formed in one end, screwed into the hollow slotted hole, of the positioning bolt;
each cuboid is provided with a graduated scale on at least one side surface and positioned above and/or below the hollow slotted hole, and correspondingly, the centers of the upper and lower sides of the mounting hole are provided with graduation lines along the direction of the vertical central axis.
2. The easy bracket of claim 1, wherein the positioning bolt is fastened by a plurality of positioning nuts.
3. The easy bracket of claim 1 wherein the right angle bracket is mounted to a magnetic clamp that can be adjusted up, down, left, right and aligned to the point on the spindle where the measurement is desired.
4. A method for measuring vibration of a spindle by using the simple support of claim 1, comprising the steps of:
firstly, diameter parameters of a main shaft and a gap measuring range of a displacement sensor are obtained, and the distance of a positioning bolt on a graduated scale is obtained by the radius of the main shaft, the measuring gap of the displacement sensor and the distance which the displacement sensor needs to extend out;
then screwing the positioning bolt into the hollow slotted hole of the cuboid to the calculated distance, and adopting a plurality of positioning nuts to fasten the positioning bolt;
then screwing the displacement sensor into the mounting hole at the tail end of the positioning bolt;
finally, mounting the right-angle bracket on a magnetic clamping device capable of being adjusted up, down, left and right, and aligning to a point to be measured on the main shaft;
and then starting the motor to measure the vibration condition on the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785416.8A CN106195593B (en) | 2016-08-30 | 2016-08-30 | A kind of installation displacement transducer is in the simple rack and its application method of main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785416.8A CN106195593B (en) | 2016-08-30 | 2016-08-30 | A kind of installation displacement transducer is in the simple rack and its application method of main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195593A CN106195593A (en) | 2016-12-07 |
| CN106195593B true CN106195593B (en) | 2018-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785416.8A Expired - Fee Related CN106195593B (en) | 2016-08-30 | 2016-08-30 | A kind of installation displacement transducer is in the simple rack and its application method of main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195593B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4224002A1 (en) * | 1992-07-21 | 1994-01-27 | Ssm Patente Verwertungs Gmbh | Holder for separable, parallel mounting for shafts, sensors or instruments - comprises pairs of co-operating arcuate clamps at ends of rods which are pivotably mounted at middle to open and close clamps, and provides elastic deformation for vibration damping and thermal insulation |
| CN101586938B (en) * | 2009-04-17 | 2010-09-08 | 北京航空航天大学 | Position adjusting and positioning device of capacitive displacement and vibration sensor |
| CN201892545U (en) * | 2010-11-27 | 2011-07-06 | 合肥市百胜科技发展股份有限公司 | Sensor holder |
| US9322492B2 (en) * | 2012-08-23 | 2016-04-26 | Westinghouse Electric Company Llc | Pipeline clamp for vibration measurement |
| CN105136277B (en) * | 2015-04-30 | 2018-03-06 | 国家电网公司 | A kind of detection means and detection method of axle vibration sensor |
| CN105000442B (en) * | 2015-07-13 | 2017-07-11 | 内蒙古自治区特种设备检验院 | Cage guide multi-parameters test sensor installation seat |
| CN205170068U (en) * | 2015-10-10 | 2016-04-20 | 肖丽娟 | Detection apparatus for physiosis axle on printed packaging equipment |
| CN205065231U (en) * | 2015-10-13 | 2016-03-02 | 哈尔滨东安汽车发动机制造有限公司 | Torsional vibration equipment sensor installation universal stand |
-
2016
- 2016-08-30 CN CN201610785416.8A patent/CN106195593B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN106195593A (en) | 2016-12-07 |
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