CN206420601U - Axis through type tension sensor - Google Patents
Axis through type tension sensor Download PDFInfo
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- CN206420601U CN206420601U CN201621480735.XU CN201621480735U CN206420601U CN 206420601 U CN206420601 U CN 206420601U CN 201621480735 U CN201621480735 U CN 201621480735U CN 206420601 U CN206420601 U CN 206420601U
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Abstract
Axis through type tension sensor, structure is：Bearing bracket stand is located in shell, and self-aligning bearing is located in bearing bracket stand, there is two projections outside bearing bracket stand, and projection cross sectional shape is any in isosceles trapezoid, large semi-circular, half kidney ellipsoid, half of ellipse, there is two necks being adapted in shell；A strain beam being connected with bearing bracket stand, shell, it is rectangle to have resistance strain gage R1 to R4, its cross sectional shape thereon；Output interface is located at outside shell and communicated with enclosure；Circuit is controlled to include resistance strain gage R1 to R4, zero temperature compensation resistance Rt, offset output compensation resistance Rz, input uniformity compensation resistance RiAnd two groups of sensitivity output compensation resistance RL, sensitivity temperature compensation resistance R in parallelb, power line, the output signal line of control circuit are layered in shell and are connected with output interface；Inside and outside side plate is located at the axial both sides of shell.The precision of this sensor is high, stability is good, service life is long.
Description
Technical field
The utility model is related to a kind of axis through type tension sensor.
Background technology
At present, existing differential transformer type tension sensor, its operation principle is：Iron core is inserted into coil, passed through
Deflector roll and bearing block apply downward pressure to sensor, so that iron core produces displacement in coil, export a voltage
Signal.This sensor has the drawback that：Low precision, stability are bad, Long Service Life is short, maintenance cost is high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of axis through type tension sensor, and this sensor has essence
Degree is high, stability is good, service life length advantage.
In order to solve the above technical problems, the utility model provides a kind of axis through type tension sensor, it includes shell, axle
Bolster, self-aligning bearing, strain beam, control circuit, output interface, interior plate, outer panel；
Bearing bracket stand is located in shell and leaves gap between the two, and self-aligning bearing is located in bearing bracket stand, outside self-aligning bearing
It is interference fitted between circle and bearing bracket stand；
Bearing bracket stand is externally provided with two projections symmetrically and stretched out, shell corresponds to two projections in position
Place is provided with two necks being adapted respectively with two projections, any projection put in the corresponding neck of homonymy and with the neck it
Between leave gap；
The line of the width center line of two projections and the center of circle of bearing bracket stand are in a plane, the width of strain beam
The center of circle of direction center line and bearing bracket stand is in another plane, and two described planes are perpendicular；
Interior plate, outer panel are separately positioned on the axial both sides of shell, and the central region of interior plate is provided with to be run through for wearing axle
Perforation, output interface is located at the outside of shell and communicated with the inside of shell；
Circuit is controlled to include resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance strain gage R4, control
Power line, the output signal line of circuit are laid in shell and are connected with output interface；
When mounted, it is coaxially connected with the inner ring of self-aligning bearing after the perforation of interior plate to wear axle, and wears for this sensor
It is interference fitted between axle and the inner ring of self-aligning bearing, interior plate is close to the middle part for wearing axle, and outer panel is away from the middle part for wearing axle；
The number of strain beam is one and its cross sectional shape along bearing bracket stand radial direction is rectangle, one end of strain beam and axle
Bolster is connected, the other end is connected with shell, and resistance strain gage R1, resistance-strain are posted on a side of strain beam width
Resistance strain gage R4, resistance strain gage R3, and resistance strain gage are posted on piece R2, another side of strain beam width
R1, resistance strain gage R2 and resistance strain gage R4, resistance strain gage R3 are in symmetrical arrangement；
Cross sectional shape of the projection along bearing bracket stand radial direction is in isosceles trapezoid, large semi-circular, half kidney ellipsoid, half of ellipse
It is any；
The cross sectional shape and specification of neck, it is sufficient to so that it is adapted with described any projection；
Circuit is controlled also to include zero temperature compensation resistance Rt, offset output compensation resistance Rz, input uniformity compensation resistance
RiAnd two groups of sensitivity output compensation resistance RL, sensitivity temperature compensation resistance R in parallelb；Zero temperature compensation resistance Rt, electricity
Hinder foil gauge R1, resistance strain gage R2, offset output compensation resistance RzSeries connection, resistance strain gage R4, resistance strain gage R3 series connection,
They are in parallel again to constitute Wheatstone bridge, and two ends (A, C) in parallel are the input of Wheatstone bridge；A ends are with one group in parallel
Sensitivity output compensation resistance RL, sensitivity temperature compensation resistance RbOne end connect, the C-terminal sensitivity in parallel with another group is defeated
Go out to compensate resistance RL, sensitivity temperature compensation resistance RbOne end connect, input uniformity compensation resistance RiTwo ends be connected across two
Group sensitivity output compensation resistance RL, sensitivity temperature compensation resistance R in parallelbThe other end；Resistance strain gage R1, resistance should
Become piece R2 tie point into B ends, resistance strain gage R4, resistance strain gage R3 tie point are D ends, B ends, D ends are favour stone electricity
The output end of bridge.
For the sake of simple declaration problem, this biography is referred to as to axis through type tension sensor described in the utility model below
Sensor.
The number of the strain beam is one and is plate shaped stress load body, the strain beam respectively with bearing bracket stand, outer
Shell phase connect so that this sensor it is simple in construction.
The axle of wearing is commonly called as dynamometry roller, and this wears auxiliary equipment when axle uses for this sensor, it is ensured that the pressure of piece carrying material
Power acts on this sensor completely.The width center line of strain beam walk it is consistent with the Impact direction that this wears axle upwards,
The line of the width center line of two projections then mutually hangs down walking walking upwards with the width center line of strain beam upwards
Directly.
During the use of this sensor, strain beam effect loaded is deformed upon, and interior plate, outer panel can be protected should
Become beam not by external intervention.Resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance-strain on the strain beam
Piece R4 has equal sensing to pressure and pulling force.Power line, the output signal line of control circuit are connected with the pin of output interface,
Output interface is electrically connected with power supply, signal output apparatus again.When this sensor is not used, at the Wheatstone bridge in control circuit
In poised state；But, when self-aligning bearing stress produces micro-displacement, strain beam deformation is driven, resistance strain gage R1, resistance should
Become piece R2, resistance strain gage R3, resistance strain gage R4 resistance to change, now, Wheatstone bridge disequilibrium and export
Difference voltage, this sensor output voltage signal.
In use, it is under tension to wear axle.Because wear between axle and the inner ring of self-aligning bearing be interference fitted, wear axle can
Power is directly passed to the inner ring of self-aligning bearing；(so, it can reduce because being interference fitted between the outer ring of self-aligning bearing and bearing bracket stand again
Rocking for self-aligning bearing outer ring, eliminates both and is negatively affected caused by gap rubs, it is to avoid both damages), pass through
The outer ring of self-aligning bearing, bearing bracket stand is accurately and directly acted on by tension force so that strain beam is produced along its width center line
Miniature deformation (strain beam is acted on by pulling force or pressure), this sensor output voltage signal realizes the measurement of tension force.If this biography
The stress of sensor exceedes its and designs rated load, two projections will rigid contact to shell, strain beam is unloaded, limited
The further deformation of strain beam, so as to play strain beam the function of overload protection.
It is well known that the zero temperature drift phenomenon occurred in Wheatstone bridge, its reason is the resistance of four bridge arms
Foil gauge R1 to R4 temperature-coefficient of electrical resistance is inconsistent, if can allow four bridge arms resistance strain gage R1 to R4 resistance temperature
Coefficient is consistent or is closer to, so that it may eliminates or reduces zero temperature drift phenomenon to greatest extent.
Zero temperature compensation resistance Rt, offset output compensation resistance RzTemperature-coefficient of electrical resistance it is larger, allow zero temperature compensation
Resistance Rt, resistance strain gage R1 series connection, allow resistance strain gage R2, offset output compensation resistance RzSeries connection, and zero temperature compensation electricity
Hinder Rt, offset output compensation resistance RzResistance value it is more suitable, so, the total temperature-coefficient of electrical resistance of the two bridge arms can be improved,
And ensure that the temperature-coefficient of electrical resistance of four bridge arms is consistent or close, so as to offset the negative effect of zero temperature drift phenomenon, reach
To the purpose of zero temperature compensation.
Being provided with the control circuit of this sensor includes resistance strain gage R1 to R4 Wheatstone bridge, then passes through zero point temperature
Degree compensation resistance Rt, offset output compensation resistance Rz, input uniformity compensation resistance Ri, it is sensitivity output compensation resistance RL, sensitive
Spend thermo-compensator RbCompensate, constitute the good control circuit of a precision height, stability.
So, this sensor will not be influenceed by external factors such as environment temperatures and can normally be used, and each originally
Input resistance value, the output signal of sensor are the same, it is ensured that the measurement accuracy and stability of this sensor.
In addition, when this sensor is in pairs in use, its interchangeability is preferable.
In summary, this sensor has the advantages that precision is high, stability is good, service life is long.
The projection, strain beam are identical along the axial width of bearing bracket stand；
For cross sectional shape of the projection along bearing bracket stand radial direction is isosceles trapezoid, setting isosceles trapezoid is away from bearing bracket stand
The width on that base is L1, sets the width on that base that isosceles trapezoid connects with bearing bracket stand as L2, L1 ＞ L2, and described
Two bases it is parallel, isosceles trapezoid radially extend the ratio for radially extending length of length and strain beam for (0.5-
0.7): 1, L1 and the ratio of width of strain beam be (2.4-2.6): 1, L2 and strain beam width ratio for (1.5-
1.7)∶1；
For cross sectional shape of the projection along bearing bracket stand radial direction is large semi-circular, the face of cylinder of large semi-circular is in overhanging
State, the radially extend length and the ratio for radially extending length of strain beam of large semi-circular are (0.5-0.7): 1, large semicircle
The ratio of the width of shape and the width of strain beam is (3.1-3.3): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is half of kidney ellipsoid, the face of cylinder of half of kidney ellipsoid is in outer
The state stretched, the radially extend length and the ratio for radially extending length of strain beam of half of kidney ellipsoid are (0.8-1): 1, half
The ratio of the width of individual kidney ellipsoid and the width of strain beam is (3.1-3.3): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is half of ellipse, the curved surface of half of ellipse is in overhanging
State, the ratio for radially extending length for radially extending length and strain beam of half of ellipse is (0.7-0.9): 1, half
The ratio of the width of individual oval width and strain beam is (3.1-3.3): 1.
Different cross section shape and corresponding specification (axial width of projection, radial direction of the above-mentioned projection along bearing bracket stand radial direction
Development length, width), it is ensured that the intensity of projection, it is so, convex when the stress of this sensor, which exceedes it, designs rated load
Block being capable of the function of playing overload protection effective to strain beam.
The self-aligning bearing uses the universal self-aligning bearing of biserial, and bearing bracket stand is axially equipped with self-aligning bearing per side
Ring washer.The advantage of the universal self-aligning bearing of biserial：Rolling frictional resistance is small, the resistance of start is small, axial dimension is compact, lubricated maintenance is simple
Just, transmission efficiency.The setting of ring washer, can effectively prevent self-aligning bearing from axial float occur, limit the axial position of self-aligning bearing
Put.
The outer panel is flat board of the central region in closed.
So, the central region of outer panel does not have perforate, can effectively prevent extraneous dust from entering this sensor through outer panel
It is interior so that this sensor can be suitable for dust more serious environment.
The output interface is located at the position of housing exterior and the position of strain beam and faced, and some be used for is pasted in shell
The sheath with connecting line is cased with outside the one-faced tapes positioned to the power line, the output signal line that control circuit, output interface.
The above-mentioned position of output interface so that control circuit and output interface between leave appropriate length electric wire arrangement away from
From, it is ensured that control continuing, normally using for circuit；One-faced tapes, can play fixation, really to power line, output signal line
Protect the position of power line, output signal line in shell to fix, phenomenon of rupture will not occur during the use of this sensor；
Sheath, can play a protective role to output interface.
The resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance strain gage R4 are using high accuracy gold
Belong to foil electrical-resistance strain gauge.The advantage of high-precision metal foil electrical-resistance strain gauge：Thickness of thin, can preferably reflect metal structure surface
Deformation, so that the measurement accuracy of this sensor is higher.
This sensor can be used for inflation film manufacturing machine, printing machine, textile printing and dyeing machine, coating machine, cutting machine, it is dry answer a pager's call, vacuum coating
In the coiling coater equipment and production line of machine and various broad-width materials etc., the accurate measurement to material tension value is realized.
Brief description of the drawings
Fig. 1 is the structural representation (not shown interior plate and outer panel) of this sensor first embodiment.
Fig. 2 is figure l E-E sectional views.
Fig. 3 is the use state schematic diagram of this sensor first embodiment.
Fig. 4 is the circuit theory diagrams for controlling circuit in this sensor first embodiment.
Fig. 5 is the structural representation of this sensor second embodiment.
Fig. 6 is the structural representation of this sensor 3rd embodiment.
Fig. 7 is the structural representation of this sensor fourth embodiment.
Embodiment
Embodiment of the present utility model is described specifically below in conjunction with the accompanying drawings：
First embodiment
Referring to Fig. 1-Fig. 4, this sensor includes shell 1, circular bearing bracket stand 2, self-aligning bearing 3, strain beam 4, a control
Circuit processed, output interface 5, interior plate 7, outer panel 8.
Shell 1 is formed by connecting inside and outside circular inner ring 1c, outer ring 1b coaxial lines, and inner ring 1c axial width is less than outer ring
1b axial width, and inner ring 1c is located at the intermediate region of outer ring 1b axial directions, the axial both sides shape between inner ring 1c and outer ring 1b
Into two recessed 1f, two recessed 1f are the inside of shell 1.
Bearing bracket stand 2 is coaxially located in inner ring 1c and leaves gap between the two, and the gap is 3~5mm, bearing bracket stand
2 axial width is between inner ring 1c axial width and outer ring 1b axial width, and self-aligning bearing 3 is located in bearing bracket stand 2
And both coaxial lines, it is interference fitted between the outer ring of self-aligning bearing 3 and bearing bracket stand 2, self-aligning bearing 3 uses the universal aligning axle of biserial
Hold, the ring washer 3a that a self-aligning bearing 3 is axially equipped with per side of bearing bracket stand 2.
Bearing bracket stand 2 is externally provided with two same specification projections 6 that left and right is symmetrical and stretches out, inner ring 1c in position
Corresponding to two neck being adapted respectively with two projections 6 1a are provided with two projections 6, any projection 6 puts in pair of homonymy
Answer in neck 1a and gap is left between neck 1a, the gap is 1~2mm.
Cross sectional shape of the projection 6 along the radial direction of bearing bracket stand 2 is isosceles trapezoid.Section shape for projection 6 along the radial direction of bearing bracket stand 2
Shape is for isosceles trapezoid, sets the width on that base of the isosceles trapezoid away from bearing bracket stand 2 as L1, setting isosceles trapezoid and axle
The width on that base that bolster 2 connects is L2, L1 ＞ L2, and two described bases are parallel, and the radial direction of isosceles trapezoid is prolonged
The ratio for radially extending length of elongation (i.e. the height of isosceles trapezoid) and strain beam 4 is (0.5-0.7): 1, L1 with straining
The ratio of the width of beam 4 is (2.4-2.6): 1, L2 and the ratio of the width of strain beam 4 are (1.5-1.7): 1.Neck 1a's
Cross sectional shape and specification, it is sufficient to so that it is adapted with described projection 6.
One end of strain beam 4 is connected with bearing bracket stand 2, the other end is connected with inner ring 1c, and inner ring 1c corresponds in position should
Become radial dimension of the radial depth less than inner ring 1c that Liang4Chu is provided with U-shaped a gap 1d, gap 1d stretched into for strain beam 4,
Cross sectional shape of the strain beam 4 along the radial direction of bearing bracket stand 2 is rectangle.
The width center line of two projections 6 is in a plane with the center of circle of bearing bracket stand 2, the width side of strain beam 4
It is in the center of circle of center line and bearing bracket stand 2 in another plane, two described planes are perpendicular.
The axial width of projection 6, strain beam 4, inner ring 1c along bearing bracket stand 2 is identical.
Resistance strain gage R1, resistance strain gage R2 are pasted with inner ring 1c on the right flank of the width of strain beam 4,
Resistance strain gage R4, resistance strain gage R3 are pasted with the left surface of the width of strain beam 4 at inner ring 1c, and resistance should
It is in symmetrical arrangement to become piece R1, resistance strain gage R2 and resistance strain gage R4, resistance strain gage R3.
Circuit is controlled to include resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance strain gage R4, zero point
Thermo-compensator Rt, offset output compensation resistance Rz, input uniformity compensation resistance RiAnd two groups of sensitivity outputs in parallel are mended
Repay resistance RL, sensitivity temperature compensation resistance Rb。
Zero temperature compensation resistance Rt, resistance strain gage R1, resistance strain gage R2, offset output compensation resistance RzSeries connection, electricity
Foil gauge R4, resistance strain gage R3 series connection are hindered, they are in parallel again to constitute Wheatstone bridge, and two ends (A, C) in parallel are favour stone
The input of electric bridge；A ends sensitivity output compensation resistance RL, the sensitivity temperature compensation resistance R in parallel with one groupbOne end phase
Connect, C-terminal sensitivity output compensation resistance RL, the sensitivity temperature compensation resistance R in parallel with another groupbOne end connect, input
Uniformity compensation resistance RiTwo ends be connected across two groups of sensitivity output compensation resistance RL in parallel, sensitivity temperatures compensation resistance
RbThe other end；Resistance strain gage R1, resistance strain gage R2 tie point are B ends, resistance strain gage R4, resistance strain gage R3
Tie point is D ends, B ends, the output end that D ends are Wheatstone bridge.The resistance strain gage R1, resistance strain gage R2, resistance should
Become piece R3, resistance strain gage R4 and use high-precision metal foil electrical-resistance strain gauge.
Output interface 5 is located at outer ring 1b outside and the inversion T-shaped hole by being opened in inner ring 1c and outer ring 1b junctions
1e is communicated with two recessed 1f, and the lower lateral aperture being inverted in T-shaped hole 1e axially penetrates through inner ring 1c along inner ring 1c's, is inverted T-shaped hole
Upper vertical holes in 1e extends radially through outer ring 1b and communicated with described lower lateral aperture along outer ring 1b's, and output interface 5 is located at outer
Position and the position of strain beam 4 outside circle 1b are faced, and the sheath 5a with connecting line is cased with outside output interface 5.
Power line, the output signal line of control circuit are laid in any recessed 1f and connect through being inverted T-shaped hole 1e and output
Mouth 5 is connected, and some one-faced tapes for being used for positioning power line, the output signal line of control circuit are pasted in the recessed 1f
(described power line, output signal line, one-faced tapes not shown in Fig. 1-Fig. 4).
Interior plate 7, outer panel 8 are separately positioned in two recessed 1f, and the central region of interior plate 7 is provided with passes through for wearing axle 9
The perforation 7a worn, outer panel 8 is flat board of the central region in closed.
When mounted, it is coaxially connected with the inner ring of self-aligning bearing 3 after the perforation 7a of interior plate 7 to wear axle 9 for this sensor,
And interference fit between the inner ring of axle 9 and self-aligning bearing 3 is worn, interior plate 7 is close to the middle part for wearing axle 9, and outer panel 8 is remote to wear axle 9
Middle part.
In addition, shell 1, bearing bracket stand 2, strain beam 4, two projections 6, interior plate 7, the materials of outer panel 8 are using high-quality precipitation
Hardening stainless steel (0Cr17Ni4Cu4Nb) or steel alloy 40CrNiMoA, production, the supply of high-precision metal foil electrical-resistance strain gauge
Business is four lightening holes, two screwed holes for being also provided with insertion on Zhonghang Electrical Measuring Instrument Co Ltd, inner ring 1c vertically
Corresponding through hole is also provided with (piece number of lightening hole, screwed hole not shown in Fig. 1), interior plate 7, outer panel 8 (in Fig. 2 not show
Go out the through hole).
Second embodiment
Referring to Fig. 5, compared with first embodiment, cross sectional shape of the second embodiment only projection 6 along the radial direction of bearing bracket stand 2 is
It is different.
For cross sectional shape of the projection 6 along the radial direction of bearing bracket stand 2 is large semi-circular, the face of cylinder of large semi-circular is in overhanging
State, the ratio for radially extending length for radially extending length and strain beam 4 of large semi-circular is (0.5-0.7): 1, most
The ratio of circular width and the width of strain beam 4 is (3.1-3.3): 1.
3rd embodiment
Referring to Fig. 6, compared with first embodiment, cross sectional shape of the 3rd embodiment only projection 6 along the radial direction of bearing bracket stand 2 is
It is different.
For cross sectional shape of the projection 6 along the radial direction of bearing bracket stand 2 is half of kidney ellipsoid, the face of cylinder of half of kidney ellipsoid is in
Overhanging state, the radially extend length and the ratio for radially extending length of strain beam 4 of half of kidney ellipsoid are (0.8-1): 1,
The ratio of the width of half of kidney ellipsoid and the width of strain beam 4 is (3.1-3.3): 1.
Fourth embodiment
Referring to Fig. 7, compared with first embodiment, cross sectional shape of the fourth embodiment only projection 6 along the radial direction of bearing bracket stand 2 is
It is different.
For cross sectional shape of the projection 6 along the radial direction of bearing bracket stand 2 is half of ellipse, the curved surface of half of ellipse is in outer
The state stretched, the length (for the long axis direction of half of ellipse) that radially extends of half of ellipse is radially extended with strain beam 4
The ratio of length is (0.7-0.9): 1, width (for the short-axis direction of half of ellipse) and the strain beam 4 of half of ellipse
The ratio of width is (3.1-3.3): 1.
Four kinds of embodiments of the present utility model are the foregoing is only, are not limitation of the utility model, it is every to utilize
The equivalent transformation that mentality of designing and principle of the present utility model are made, or directly or indirectly it is used in other related technology necks
Domain, is similarly included in scope of patent protection of the present utility model.Such as：
Cross sectional shape of the projection along bearing bracket stand radial direction can also for half circular, any of smaller part kidney ellipsoid；
For cross sectional shape of the projection along bearing bracket stand radial direction is half of circle, half of circular face of cylinder is in overhanging
State, half circular radially extend length and the ratio for radially extending length of strain beam are (0.3-0.45): 1, hemicycle
The ratio of the width of shape and the width of strain beam is (2.7-2.9): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is smaller part kidney ellipsoid, the face of cylinder of smaller part kidney ellipsoid is in outer
The state stretched, the radially extend length and the ratio for radially extending length of strain beam of smaller part kidney ellipsoid are (0.5-0.65): 1,
The ratio of the width of smaller part kidney ellipsoid and the width of strain beam is (2.7-2.9): 1.
Claims (6)
1. axis through type tension sensor, it includes shell, bearing bracket stand, self-aligning bearing, strain beam, control circuit, output interface, interior
Side plate, outer panel；
Bearing bracket stand be located at shell in and leave gap between the two, self-aligning bearing is located in bearing bracket stand, the outer ring of self-aligning bearing and
It is interference fitted between bearing bracket stand；
Bearing bracket stand is externally provided with position to correspond in two projections symmetrically and stretched out, shell and opened at two projections
There are two necks being adapted respectively with two projections, any projection puts in the corresponding neck of homonymy and stayed between the neck
There is gap；
The line of the width center line of two projections and the center of circle of bearing bracket stand are in a plane, the width of strain beam
The center of circle of center line and bearing bracket stand is in another plane, and two described planes are perpendicular；
Interior plate, outer panel are separately positioned on the axial both sides of shell, and the central region of interior plate is provided with for wearing of wearing that axle runs through
Hole, output interface is located at the outside of shell and communicated with the inside of shell；
Control circuit to include resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance strain gage R4, control circuit
Power line, output signal line is laid in shell and is connected with output interface；
When mounted, it is coaxially connected with the inner ring of self-aligning bearing after the perforation of interior plate to wear axle for this sensor, and wear axle and
It is interference fitted between the inner ring of self-aligning bearing, interior plate is close to the middle part for wearing axle, and outer panel is away from the middle part for wearing axle；
It is characterized in that：
The number of strain beam is one and its cross sectional shape along bearing bracket stand radial direction is rectangle, one end of strain beam and bearing bracket stand
It is connected, the other end is connected with shell, and resistance strain gage R1, resistance strain gage are posted on a side of strain beam width
Post resistance strain gage R4, resistance strain gage R3 on R2, another side of strain beam width, and resistance strain gage R1,
Resistance strain gage R2 is in symmetrical arrangement with resistance strain gage R4, resistance strain gage R3；
Cross sectional shape of the projection along bearing bracket stand radial direction is times in isosceles trapezoid, large semi-circular, half kidney ellipsoid, half of ellipse
It is a kind of；
The cross sectional shape and specification of neck, it is sufficient to so that it is adapted with described any projection；
Circuit is controlled also to include zero temperature compensation resistance Rt, offset output compensation resistance Rz, input uniformity compensation resistance RiAnd
Two groups of sensitivity output compensation resistance RL, sensitivity temperature compensation resistance R in parallelb；Zero temperature compensation resistance Rt, resistance should
Become piece R1, resistance strain gage R2, offset output compensation resistance RzSeries connection, resistance strain gage R4, resistance strain gage R3 series connection, they
In parallel again to constitute Wheatstone bridge, two ends (A, C) in parallel are the input of Wheatstone bridge；Sensitive in parallel with one group in A ends
Degree output compensation resistance RL, sensitivity temperature compensation resistance RbOne end connect, C-terminal it is in parallel with another group sensitivity output mend
Repay resistance RL, sensitivity temperature compensation resistance RbOne end connect, input uniformity compensation resistance RiTwo ends be connected across two groups simultaneously
Sensitivity output compensation resistance RL, the sensitivity temperature compensation resistance R of connectionbThe other end；Resistance strain gage R1, resistance strain gage
R2 tie point is B ends, and resistance strain gage R4, resistance strain gage R3 tie point are D ends, and B ends, D ends are Wheatstone bridge
Output end.
2. axis through type tension sensor according to claim 1, it is characterised in that：
The projection, strain beam are identical along the axial width of bearing bracket stand；
For cross sectional shape of the projection along bearing bracket stand radial direction is isosceles trapezoid, that away from bearing bracket stand of setting isosceles trapezoid
The width on base is L1, sets the width on that base that isosceles trapezoid connects with bearing bracket stand as L2, L1 ＞ L2, and described two
Individual base is parallel, and the radially extend length and the ratio for radially extending length of strain beam of isosceles trapezoid are (0.5-0.7):
1, L1 and the ratio of width of strain beam be (2.4-2.6): 1, L2 and the ratio of width of strain beam be (1.5-1.7): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is large semi-circular, the face of cylinder of large semi-circular is in overhanging shape
State, the radially extend length and the ratio for radially extending length of strain beam of large semi-circular are (0.5-0.7): 1, large semi-circular
Width and strain beam width ratio be (3.1-3.3): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is half of kidney ellipsoid, the face of cylinder of half of kidney ellipsoid is in overhanging
State, the radially extend length and the ratio for radially extending length of strain beam of half of kidney ellipsoid are (0.8-1): 1, half of waist
Circular width and the ratio of the width of strain beam are (3.1-3.3): 1；
For cross sectional shape of the projection along bearing bracket stand radial direction is half of ellipse, the curved surface of half of ellipse is in overhanging shape
State, the radially extend length and the ratio for radially extending length of strain beam of half of ellipse are (0.7-0.9): 1, half is ellipse
Circular width and the ratio of the width of strain beam are (3.1-3.3): 1.
3. axis through type tension sensor according to claim 1, it is characterised in that：
The self-aligning bearing uses the universal self-aligning bearing of biserial, the shelves that a self-aligning bearing is axially equipped with per side of bearing bracket stand
Circle.
4. axis through type tension sensor according to claim 1, it is characterised in that：
The outer panel is flat board of the central region in closed.
5. axis through type tension sensor according to claim 1, it is characterised in that：
The output interface is located at the position of housing exterior and the position of strain beam and faced, and some be used for control is pasted in shell
The sheath with connecting line is cased with outside the one-faced tapes that power line, the output signal line of circuit processed are positioned, output interface.
6. axis through type tension sensor according to claim 1, it is characterised in that：
The resistance strain gage R1, resistance strain gage R2, resistance strain gage R3, resistance strain gage R4 use high-precision metal paper tinsel
Strain ga(u)ge.
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| CN201621480735.XU CN206420601U (en) | 2016-12-30 | 2016-12-30 | Axis through type tension sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN114245864A (en) * | 2019-08-30 | 2022-03-25 | 深圳纽迪瑞科技开发有限公司 | Pressure sensing device, pressure sensing method and equipment |
-
2016
- 2016-12-30 CN CN201621480735.XU patent/CN206420601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN114245864A (en) * | 2019-08-30 | 2022-03-25 | 深圳纽迪瑞科技开发有限公司 | Pressure sensing device, pressure sensing method and equipment |
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