CN114688410B - Axle load monitoring support with attached sensor mounting through hole - Google Patents
Axle load monitoring support with attached sensor mounting through hole Download PDFInfo
- Publication number
- CN114688410B CN114688410B CN202210326279.7A CN202210326279A CN114688410B CN 114688410 B CN114688410 B CN 114688410B CN 202210326279 A CN202210326279 A CN 202210326279A CN 114688410 B CN114688410 B CN 114688410B
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- Prior art keywords
- bracket
- hole
- attached sensor
- holes
- axle load
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Classifications
-
- 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
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
Abstract
The invention discloses a shaft load monitoring bracket with an attached sensor mounting through hole, which comprises 2 brackets, wherein the 2 brackets are arranged on two sides; the bracket comprises a bracket vertical plate, wherein the bracket vertical plate is provided with a bracket shaft end supporting hole and a through hole, and the through hole is arranged at the abdomen of the bracket vertical plate and is positioned right below the bracket shaft end supporting hole; the upper surface of the through hole is fixedly connected with an attached sensor assembly; the front side and the rear side of the through hole are respectively and correspondingly provided with a front cover plate and a rear cover plate for sealing, and the front cover plate and the rear cover plate are fixedly connected to the front side and the rear side of the bracket vertical plate through a plurality of fixing pieces; the front cover plate is provided with a waterproof connector for leading out wires; the inner side of the rear cover plate is provided with a wiring terminal; the output terminal of the attached sensor assembly is connected with the lead-out wire through a wiring terminal so as to realize the instant monitoring of the load of the shaft. The device has wider measuring range, larger primary output signal and simpler and more convenient sensor installation and replacement.
Description
Technical Field
The invention relates to the technical field of axle load monitoring, in particular to an axle load monitoring bracket with an attached sensor mounting through hole.
Background
In various types of mechanical equipment in the industrial sector, the devices for detecting the shaft load are mainly of the 2 types: the first type is a bearing seat type series, and the single seat load measuring range is less than or equal to 30t; the other type is a shaft type sensor series, the single-shaft load measuring range is less than or equal to 100t, the two devices adopt shearing deformation to be output signals at one time, and the rated value is less than or equal to 10mv/10v. The bearing seat type series sensor only collects the force of one steel wire rope, the force of other steel wire ropes cannot be collected, and the signal coverage range is small, so that the bearing seat type series sensor is only suitable for monitoring small loads. The sensors of the two devices are installed in the device in a tight fit manner, the installation and the replacement of the sensors are carried out by detaching related parts such as a bracket and a shaft, and especially the shaft type sensor is more time-consuming and labor-consuming because the steel wire rope and the tightly matched fixed pulley are detached.
Therefore, how to provide a shaft load monitoring bracket with an attachment type sensor mounting through hole, which has wider measurement range and larger primary output signal, and is simpler and more convenient for sensor mounting and replacement, is one of the technical problems to be solved in the field.
Disclosure of Invention
In view of this, the present invention provides an axle load monitoring bracket with attached sensor mounting through holes. The purpose is to solve the above-mentioned shortcomings.
In order to solve the technical problems, the invention adopts the following technical scheme:
the axle load monitoring bracket with the attached sensor mounting through holes comprises 2 brackets, wherein 2 brackets are arranged on two sides; the bracket comprises a bracket vertical plate, wherein a bracket shaft end supporting hole and a through hole are formed in the bracket vertical plate, and the through hole is arranged at the abdomen of the bracket vertical plate and is positioned right below the bracket shaft end supporting hole;
the upper surface of the through hole is fixedly connected with an attached sensor assembly; front cover plates and rear cover plates are correspondingly arranged on the front side and the rear side of the through hole for sealing respectively, and the front cover plates and the rear cover plates are fixedly connected to the front side and the rear side of the support vertical plate through a plurality of fixing pieces;
the front cover plate is provided with a waterproof connector for leading out wires; the inner side of the rear cover plate is provided with a wiring terminal; the output terminal of the attached sensor assembly is connected with the lead-out wire through the wiring terminal so as to realize the instant monitoring of the load of the shaft.
Preferably, the central vertical surfaces of the support shaft end supporting hole and the through hole are coincident with the central section of the attached sensor assembly.
Preferably, the left and right sides of the through hole are of double-arc structures; the through holes are symmetrically arranged left and right relative to the perpendicular bisectors of the brackets, and the upper surfaces and the lower surfaces of the through holes are straight planes; the connecting lines of the left and right ends of the upper and lower planes of the through hole and the upper and lower end points of the corresponding double-arc structures on the left and right sides of the through hole are smooth transition.
Preferably, the middle connection points of the double-arc structures at two sides of the through hole are zero stress convex inflection points; the preferred structure dimensions of the through-holes are determined using finite element mechanical calculations.
The beneficial effect of above-mentioned scheme is: by designing the through hole structure, when the bracket bears vertical load, larger bending deformation can be gathered at the measuring point in the middle of the upper surface of the through hole to obtain larger primary output signals, and meanwhile, the stress of the maximum stress areas on the two sides of the through hole is reduced to obtain better structural strength balance of the bracket.
Preferably, the substrate notches at two ends of the attached sensor assembly are welded and connected to the reserved measuring point positions of the support vertical plate. When the device works, under the action of load of the shaft end of the bearing shaft, the measuring point on the upper surface of the through hole can generate bending deformation along the axis of the sensor, and the primary signal is input into the secondary instrument after passing through the electric signal converted by the measuring bridge of the sensor, so that the load is monitored immediately.
Preferably, the attached sensor assembly employs L 0 The attached sensor assembly of=50 mm to 100mm short basis length.
Preferably, the axle load detection of the axle load monitoring bracket with the attached sensor mounting through hole can adopt two structural forms: single-measuring point structure and double-side-point structure.
Preferably, the single-measuring-point structure is that a through hole and an attached sensor assembly are arranged on the bracket vertical plates of 1 bracket.
Preferably, the two-side point structure is formed by arranging a through hole and an attached sensor assembly on the stand plates of 2 brackets; and the reserved measuring points on the stand plates of the brackets at the two sides are connected in series; the primary output signal is doubled, and the rated value of the primary output signal reaches 50-70 mv/10v, which is far larger than the corresponding output value of the traditional resistance strain type detection device; when the axle load combined force acting line and the vertical center of the fixed pulley bracket device do not coincide, the load monitoring is required to adopt a double-measuring-point structure.
Preferably, the fixing member is a screw.
Preferably, the number of the screws is 4 at the front side and the rear side of the bracket vertical plate.
Preferably, after the structure size of the through hole is determined, the upper and lower positions of the through hole are adjusted along the perpendicular bisector of the vertical plate of the bracket, the deformation value of the measuring point on the upper surface of the through hole is increased or decreased, and the maximum value of the primary signal of the measuring point is obtained through the optimal position of the height of the finite element; the structural dimensions of the through holes and the height positions of the through holes can be subjected to mechanical calculation and adjustment again according to the steps if necessary.
Compared with the prior art, the invention has the following technical effects:
1) The detectable load value range is large, the load value can be detected in the allowable strength range of the attached body (bracket) of the attached sensor assembly, and the rated load detection value of the fixed pulley beam bracket device which is applied to practice at present is 30-1000 t;
2) The primary output signal of the load monitoring bracket is large and reaches 50-70 mv/10v under the rated load;
3) The sensor is convenient to install and replace, related parts such as a bearing shaft, a bracket, a fixed pulley and the like do not need to be disassembled, and the economy is good;
4) The sensor is attached to the bracket and rigidly connected with the bracket body, only bears extremely small component force, and has good adaptability, reliability and service life under dynamic working conditions. .
Drawings
FIG. 1 is a schematic illustration of a two-sided point construction of an axle load monitor bracket with attached sensor mounting through holes in accordance with the present invention;
FIG. 2 is a schematic illustration of a single-sided dot construction of an axle load monitor bracket with attached sensor mounting through holes in accordance with the present invention;
FIG. 3 is a schematic illustration of a bracket of the present invention with an attached sensor mounting through hole for an axle load monitoring bracket;
in the figure: 1. a support hole; 2. a support vertical plate; 3. a through hole; 4. an attached sensor assembly; 5. a front cover plate; 6. a back cover plate; 7. a connection terminal; 8. waterproof connectors of outgoing lines; 9. and (5) a screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1, an axle load monitoring bracket with attachment sensor mounting through holes comprises 2 brackets, wherein 2 brackets are arranged on two sides; the bracket comprises a bracket vertical plate 2, wherein a bracket shaft end supporting hole 1 and a through hole 3 are formed in the bracket vertical plate 2, and the through hole 3 is arranged at the abdomen of the bracket vertical plate 2 and is positioned right below the bracket shaft end supporting hole 1; the upper surface of the through hole 3 is fixedly connected with an attached sensor assembly 4; the front and rear sides of the through hole 3 are respectively provided with a front cover plate 5 and a rear cover plate 6 for sealing, and the front cover plate 5 and the rear cover plate 6 are fixedly connected to the front and rear sides of the bracket vertical plate 2 through 4 screws; the front cover plate 5 is provided with a lead-out wire waterproof joint 8; the inner side of the rear cover plate 6 is provided with a wiring terminal 7; the output terminal of the attached sensor assembly 4 is connected with the lead-out wire through the wiring terminal 7 so as to realize the instant monitoring of the shaft load.
In this embodiment, the middle vertical surfaces of the support shaft end supporting hole 1 and the through hole 3 are coincident with the middle section of the attachment sensor assembly 4.
In this embodiment, the left and right sides of the through hole 3 have a double-arc structure; the through holes 3 are symmetrically arranged left and right with respect to the perpendicular bisectors of the brackets, and the upper surfaces and the lower surfaces of the through holes are straight planes; the connection lines between the left and right ends of the upper and lower planes of the through hole 3 and the upper and lower end points of the corresponding double-arc structures on the left and right sides of the through hole 3 are smooth transition.
In this embodiment, the middle connection points of the double-arc structures at two sides of the through hole 3 are zero stress convex inflection points; the preferred structural dimensions of the through-holes 3 are determined using finite element mechanical calculations.
In this embodiment, the notches of the base plates at the two ends of the attached sensor assembly 4 are welded to the reserved measuring point positions of the stand plate 2.
In this embodiment, the axle load detection of the axle load monitoring bracket with the attachment sensor mounting through hole may adopt two structural forms: single-measuring point structure and double-side-point structure. The single-measuring-point structure is characterized in that a through hole 3 and an attached sensor assembly 4 are arranged on the bracket vertical plate 2 of 1 bracket. The double-side-point structure is characterized in that a through hole 3 and an attached sensor assembly 4 are arranged on the stand plates 2 of the 2 brackets; and the reserved measuring points on the two side support vertical plates 2 are connected in series; the primary output signal is doubled, and the rated value of the primary output signal reaches 50-70 mv/10v, which is far larger than the corresponding output value of the traditional resistance strain type detection device; when the axle load combined force acting line and the vertical center of the fixed pulley bracket device do not coincide, the load monitoring is required to adopt a double-measuring-point structure.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (8)
1. The axle load monitoring bracket with the attachment type sensor mounting through holes comprises 2 brackets, and the 2 brackets are arranged on two sides, and is characterized in that the brackets comprise bracket vertical plates (2); the support vertical plate (2) is provided with a support shaft end supporting hole (1) and a through hole (3), and the through hole (3) is arranged at the abdomen of the support vertical plate (2) and is positioned right below the support shaft end supporting hole (1);
the upper surface of the through hole (3) is fixedly connected with an attached sensor assembly (4); front cover plates (5) and rear cover plates (6) are correspondingly arranged on the front side and the rear side of the through hole (3) respectively for sealing, and the front cover plates (5) and the rear cover plates (6) are fixedly connected to the front side and the rear side of the support vertical plate (2) through a plurality of fixing pieces;
the front cover plate (5) is provided with a lead-out wire waterproof joint (8); a wiring terminal (7) is arranged on the inner side of the rear cover plate (6); the output end of the attached sensor assembly (4) is connected with the lead-out wire through the wiring terminal (7) so as to realize the instant monitoring of the load of the shaft;
the left side surface and the right side surface of the through hole (3) are of double-arc structures; the through holes (3) are symmetrically arranged left and right relative to the perpendicular bisectors of the bracket, and the upper surfaces and the lower surfaces of the through holes are straight planes; the connection lines between the left and right ends of the upper and lower planes of the through hole (3) and the upper and lower end points of the corresponding double-arc structures on the left and right sides of the through hole (3) are smooth transition; the middle connection points of the double-arc structures at the two sides of the through hole (3) are zero stress convex inflection points; the preferred structural dimensions of the through-holes (3) are determined using finite element mechanical calculations.
2. An axle load monitoring bracket with attached sensor mounting through holes according to claim 1, characterized in that the bracket axle end bearing holes (1) and the through holes (3) are in coincidence with the middle cross section of the attached sensor assembly (4).
3. The axle load monitoring bracket with the attached sensor mounting through holes according to claim 1, wherein the substrate notches at two ends of the attached sensor assembly (4) are welded and connected to reserved measuring point positions of the bracket vertical plate (2).
4. The axle load monitoring bracket with attached sensor mounting through-holes of claim 1, wherein the axle load detection of the axle load monitoring bracket with attached sensor mounting through-holes takes the form of a single-point structure or a double-point structure.
5. An axle load monitoring bracket with attached sensor mounting through holes according to claim 4, characterized in that the single-measuring point structure is that the bracket riser (2) at one side of the bracket is provided with a through hole (3) and an attached sensor assembly (4).
6. The axle load monitoring bracket with attached sensor mounting through holes according to claim 4, characterized in that the two-sided point structure is that a through hole (3) and an attached sensor assembly (4) are arranged on the bracket vertical plates (2) at both sides of the bracket; and the reserved measuring points on the two side support vertical plates (2) are connected in series.
7. An axle load monitoring bracket with attached sensor mounting through holes according to claim 1, characterized in that the fixing is a screw (9).
8. An axle load monitoring bracket with attached sensor mounting through holes according to claim 7, characterized in that the screws (9) are provided in 4 on the front and rear sides of the bracket riser (2), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210326279.7A CN114688410B (en) | 2022-03-30 | 2022-03-30 | Axle load monitoring support with attached sensor mounting through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210326279.7A CN114688410B (en) | 2022-03-30 | 2022-03-30 | Axle load monitoring support with attached sensor mounting through hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114688410A CN114688410A (en) | 2022-07-01 |
| CN114688410B true CN114688410B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210326279.7A Active CN114688410B (en) | 2022-03-30 | 2022-03-30 | Axle load monitoring support with attached sensor mounting through hole |
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