CN108760150A - A kind of large size force value asymmetrical load power and torque decouple calibrating installation - Google Patents
A kind of large size force value asymmetrical load power and torque decouple calibrating installation Download PDFInfo
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- CN108760150A CN108760150A CN201810775146.1A CN201810775146A CN108760150A CN 108760150 A CN108760150 A CN 108760150A CN 201810775146 A CN201810775146 A CN 201810775146A CN 108760150 A CN108760150 A CN 108760150A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
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Abstract
A kind of large-scale force value asymmetrical load power proposed by the invention decouples calibrating installation with torque, belongs to mechanics field of measuring techniques.Core concept is to measure component as core using tension and compression type load cell and spoke type torque sensor, realization decouples large-scale force value asymmetrical load power and torque, including installation braced frame, torque measurement component, power and torque calibration transverse beam assembly, preloads component, tension and compression type load cell, obliquity sensor and by school proof force output device.It is arranged with standard simple component tension-compression sensor and standard torque sensor orthogonal direction, large-scale force value asymmetrical load synthesized proof force and standard torque in the process can directly be measured, the synergisticing performance between multi-standard power output device is evaluated with this, the coupling influence relationship between power and torque is disclosed simultaneously, ensures the accuracy of simple component load and multi -components load during large-scale force value multi -components dynamometric system calibrated in situ.
Description
Technical field
The present invention relates to a kind of large-scale force value asymmetrical load power to decouple calibrating installation with torque, belongs to mechanics measurement technology neck
Domain.
Background technology
Modern Mechanics metering mainly develops to the calibration of large-scale Force measure and small Force measure calibration both direction, wherein
Large-scale Force measure calibration carries out evaluation mainly for the measurement characteristic of force measurement system in large-scale experiment equipment and technology is protected
Barrier.Large-scale experiment implementation difference tends to belong to non-standard special measurement equipment, internal structure in laboratory routine force measuring device
Complexity, close coupling, multi -components, measuring cell are not easy to remove, and tradition can not be used to dismantle the measurement and calibration mode of independent inspection.
Based on such technical need, a technology branch in the large-scale Force measure calibration come into being is as large-scale
Special measurement equipment force value calibrated in situ technology (or on-line calibration technology), the technical solution are exactly to ensure that large-scale specially measurement equipment is real
In the case of border working condition and installation condition, calibrated in situ is determined according to the concrete structure of force measurement system and measuring principle
The specific implementation mode of device, core are exactly the accurate load of standard calibration load.Compared to traditional experiment room large size force value
The load mode of calibration, large-scale specially measurement equipment calibrated in situ normal loading can be by special measurement equipment structure and field working conditions environment
Limitation often can not directly apply the proof force or standard torque carried along shafting is measured.Meanwhile large-scale specially measurement equipment integration degree
Height measures while achievable multi-dimensional force element mostly, and corresponding calibrated in situ, which works, need to have the list of standard calibration load
The ability that component loads and multi -components load simultaneously.The large-scale specially medium-and-large-sized force value multi -components dynamometric system calibrated in situ mistake of measurement equipment
The load mode of journey Plays load mostly uses asymmetrical load method, i.e., equal by measuring axisymmetrical relative to dynamometric system
Two component, the position of component is parallel with axis is measured, and component size is the 1/2 of standard calibration load, before loading device
End simple component load cell measures, and is standard calibration power after two component synthesis；When two component are unequal, measuring
Axis direction is generated while generating synthetic standards power around the standard torque where two component positions on plane normal direction,
Realize the combination load of proof force and standard torque.
The large-scale specially medium-and-large-sized force value multi -components dynamometric system calibrated in situ asymmetrical load method of measurement equipment, can greatly simplify original position
The structure of calibrating installation, while asymmetrical load method avoids rigors of the uniaxial loading to the loading device rigidity of structure, especially
It is for installation space is limited or the work of the calibrated in situ of the large-scale force value multi -components dynamometric system of working at height is largely effective.But it is big
Type force value asymmetrical load method is proposed according to power in rational mechanics and torque composition principle, in practical engineering application two solely
Whether the assumed (specified) load after the proof force synthesis that vertical proof force output device is exported is consistent with standard calibration load, with
And the synchronous synergetic output of proof force can be realized between proof force output device；On the other hand, large-scale force value asymmetrical load acceptance of the bid
The combination load itself of quasi- power and standard torque is the coupling of two dimensional surface internal force and torque, and torque is by power and the arm of force
Product obtains indirectly, combines loading procedure Plays power and can standard torque accurately export and coupling between the two is closed
System is both needed to be examined before large-scale force value multi -components dynamometric system calibrated in situ works.Therefore seek to solve large-scale force value
Multi -components dynamometric system calibrated in situ asymmetrical load power and torque decouple collimation technique bottleneck, realize that proof force and standard torque carry
The accurate evaluation of lotus and examination are the premises that large-scale force value multi -components dynamometric system calibrated in situ research work is carried out.
Do not find that existing relevant technical literature or existing product are related to large-scale force value asymmetrical load power and power by literature search
Square decoupling calibration symmetrically cooperates about proof force output device during large-scale force value calibrated in situ and realizes that proof force and torque add
The system calibration of load still belongs to blank.
Invention content
The purpose of the present invention is to solve large-scale force value multi -components dynamometric system calibrated in situ asymmetrical load power and torques
Collimation technique bottleneck is decoupled, realizes accurate evaluation and the examination of proof force and standard torque load, a kind of large-scale force value of proposition
Asymmetrical load power decouples calibrating installation with torque.
Core of the invention thought is arranged with standard simple component tension-compression sensor and standard torque sensor orthogonal direction,
Component is measured as core using tension and compression type load cell and spoke type torque sensor, proposes that large-scale force value is online in situ
It calibrates asymmetrical load power and torque decouples component calibration method, realization decouples large-scale force value asymmetrical load power and torque,
Proof force and standard torque synthesized by large-scale force value asymmetrical load can be directly measured, with the collaboration of this evaluation criterion power output device
Performance, while the coupling influence relationship between power and torque is disclosed, ensure large-scale force value multi -components dynamometric system calibrated in situ mistake
The accuracy of simple component load and multi -components load in journey.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of large size force value asymmetrical load power and torque decouple calibrating installation, including installation braced frame, torque measurement group
Part, power and torque calibration transverse beam assembly preload component, tension and compression type load cell, obliquity sensor and defeated by school proof force
Go out device；
Wherein, installation braced frame by pedestal, guide upright post, upper cover, preload counterweight load plate, torque measurement mounting plate and
Linear bearing forms；Wherein, upper cover is square, and pedestal is rectangle, also referred to as rectangular susceptor, width and the upper cover side of rectangular susceptor
It is long consistent；
The quantity of guide upright post is 4；The quantity of linear bearing is 4；Pedestal, guide upright post, upper cover, preloading counterweight add
Support plate and torque measurement mounting plate are 1；
Torque measurement component is by spoke type torque sensor, center torque axis, rotating shaft bearing sleeve, rotating shaft bearing and revolution
Support base forms；
Wherein, revolving support seat is L-shaped, and inside is equipped with reinforcing rib, and revolving support seat one end is solid with torque measurement mounting plate
Fixed connection, the other end are connect with spoke type torque sensor fixing end；Rotating shaft bearing sleeve is hollow cylindrical body, and one end is machined with
Ring flange, rotating shaft bearing sleeve outer diameter is consistent with rotating shaft seat inner diameter, rotating shaft bearing sleeve internal diameter and center torque axis outer diameter it is small between
Gap coordinates；Rotating shaft bearing is hollow cylindrical body, and internal diameter is more than the outer diameter of spoke type torque sensor, and both ends are machined with flange
Disk, floating bearing cover for seat one end outside spoke type torque sensor are fixedly connected with revolving support seat, the other end and floating bearing
Set flange is fixedly connected；Center torque axis is cylindrical structure, and one end is welded with end cap, and the other end is outside along center on the outside of cylinder
Extend symmetric position and weld mounting plate, center torque axis, which welds end cap one end and fixed with spoke type torque sensor measurement end, to be connected
It connects；
Power calibrates transverse beam assembly by pull rod connecting plate, pull rod connecting plate rotating shaft, centralized positioning mounting blocks, H-type with torque
Crossbeam and rotating shaft link block composition；
Wherein the pull rod connecting plate revolution number of axle is 2；Rotating shaft link block is square, and quantity is 2；Centralized positioning
Mounting blocks are square, and quantity is 2；Remaining component part quantity is 1；
The power and torque calibration transverse beam assembly geometric center and torque measurement component torque measurement axis collinear, power and power
It is vertical with torque measurement component torque measurement axis that square calibrates transverse beam assembly length direction central axis；The power is calibrated with torque
Transverse beam assembly is fixedly connected with torque measurement component torque measurement end, and the two combination is integral can leading in installation braced frame
It is moved down along gravity direction；
H-type crossbeam installation direction is consistent with load direction in calibration process；Rotating shaft link block section is T-type, and size is big
One end and H-type crossbeam on outer lower face surface range arm cun it is consistent, the small one end of size and lower inner surface range arm cun on H-type crossbeam
Unanimously, small one section of rotating shaft connection block size is embedded in H-type crossbeam inside grooves, and two rotating shaft link blocks installations are along H-type
Crossbeam center line is arranged symmetrically and welds post-processing installation surface, and specific installation site is matched with center torque axis extension mounting plate
Installation；Centralized positioning mounting blocks section is T-type, and the big one end of size is consistent with outer lower face surface range arm cun on H-type crossbeam, size
Big one end thickness is less than the big one end thickness of rotating shaft connection block size, the small one end of size and lower inner surface on H-type crossbeam
Consistent apart from size, small one section of centralized positioning installation block size is embedded in H-type crossbeam inside grooves, and centralized positioning mounting blocks are several
It is threaded hole at what center；Pull rod connecting plate axis pin front end processing screw thread is connect with centralized positioning mounting blocks threaded hole, after
End is that cylindrical pin coordinates with pull rod connecting plate, and pull rod connecting plate can be turned round around pull rod connecting plate axis pin axis；Pull rod connecting plate
For U-shaped structure, bottom end is fixedly connected with pull rod by nut by through-hole, and upper end processes symmetrical articulation hole and pull rod connecting plate axis pin
Cooperation；
The power is arranged in length direction central axis relative to geometric center symmetric position with torque calibration transverse beam assembly
By school proof force output device, power is located at by school proof force output device outputting standard point of force application and calibrates transverse beam assembly with torque
On length direction central axis；The tension and compression type load cell measurement end and power and torque calibration transverse beam assembly central point hinge
It connects；
Tension and compression type load cell is fixed by bottom end pulling bar, reverse thread sleeve and epimere pull rod and pull rod connecting plate to be connected
It connects；Reverse thread sleeve both ends process oppositely oriented screw thread, and one end is connect with epimere pull rod, and the other end connects with hypomere pull rod
It connects, adjusting yoke length；The hypomere pull rod other end is connected through a screw thread with tension and compression type load cell, the epimere pull rod other end with
Pull rod connecting plate is fixedly connected by nut；
The torque measurement component measuring force is generated at torque calibration transverse beam assembly center steering axis by asymmetrical load
Coupling torque, produced by asymmetrical load at tension and compression type load cell measuring force and torque calibration transverse beam assembly geometric center point
Raw resultant force；
The preloading component preloads counterweight by angle pulley, preloading cable wire and standard and forms；
Wherein, the quantity of covert pulley is 2, preloads counterweight quantity and is determined according to pretightning force needed for calibration range；It preloads
Cable wire 1；
Wherein, standard preloads counterweight and measures counterweight multistage loadings using standard two level；Standard preloads counterweight and generates preload force,
It avoids causing tension and compression type load cell to be pressurized by structure gravity, ensures that tension and compression type load cell is in tension at the beginning of calibration
State then symmetrically generates output by school proof force output device, and tension and compression type load cell, which further stretches, generates measured value,
Tension and compression type load cell preload on the basis of output increment be by school proof force output device asymmetrical load during produce
Raw resultant force；Not by torque before calibration starts, zero is ensured spoke type torque sensor by installation accuracy；
Preload force on component offer tension and compression type load cell measurement axis direction is provided, ensures tension and compression in calibration process
Formula load cell is constantly in tension state；Obliquity sensor is installed on power and calibrates transverse beam assembly upper surface center with torque
Locate, power calibrates transverse beam assembly deflection angle with torque in measuring center loading procedure.
The connection relation that large-scale force value asymmetrical load power decouples calibrating installation with torque is as follows：
Power is connected with torque calibration transverse beam assembly with torque measurement component, then is connected with installation braced frame；Drawing and pressing type is surveyed
Force snesor is connected with power with torque calibration transverse beam assembly；It preloads component with tension and compression type load cell to be connected, obliquity sensor
It is connected with power with torque calibration transverse beam assembly, is connected with power with torque calibration transverse beam assembly by school proof force output device.
The connection relation for installing braced frame is as follows：Guide upright post both ends are connected with pedestal and upper cover respectively；Preload counterweight
Load plate is connected with linear bearing；Torque measurement mounting plate is connected with linear bearing；Linear bearing is connected with guide upright post；
The connection relation of torque measurement component is as follows：Spoke type torque sensor fixing end is connected with revolving support seat, surveys
Amount end is connected with center torque axis；Rotating shaft bearing sleeve inner ring is connected with center torque axis, and outer ring is connected with rotating shaft bearing；
The connection relation that power calibrates transverse beam assembly with torque is as follows：
Rotating shaft link block is connected with H-type crossbeam；Centralized positioning mounting blocks are connected with H-type crossbeam, then pull rod connecting plate
Rotating shaft one end is connected with centralized positioning mounting blocks, and the other end is connected with pull rod connecting plate；
The connection relation for preloading component is as follows：
It preloads cable wire one end with torque measurement mounting plate geometric center point to be connected, passes vertically through upper cover and installed with torque measurement
Corresponding position through-hole in plate cluster center point vertical direction, by a pair of symmetrical angle pulley, the other end on upper cover center line
Counterweight load plate geometric center point is preloaded with standard to be connected；
The installation process difference that large-scale force value asymmetrical load power decouples each comprising modules in calibrating installation with torque is as follows：
The installation process for installing braced frame is as follows：
Step 1) upper cover is installed on the side of rectangular susceptor by guide upright post support, and the three of three sides of upper cover and rectangular susceptor
A side alignment；
Step 2) pedestal is fixed on concrete foundation, and installation process ensures levelness by level measurement；
Four guide upright post one end of step 3) are fixedly installed in upper cover square diagonal line close to the position of angle point, remaining one
A guide upright post one end is fixedly installed in upper cover square center point position, and the other end is fixedly mounted on the correspondence position of pedestal
It sets；
Step 4) preloads counterweight load plate and two linear bearing rear enclosures is fixedly mounted in upper cover and pedestal narrow side alignment side
Two guide upright posts；
Step 5) square measures mounting plate and three linear bearings being triangularly arranged is fixedly mounted, and is sleeved on its excess-three guiding
On column；
The installation process of torque measurement component is as follows：
Step a) spoke type torque sensor fixing ends are fixedly installed in revolving support seat supports end, protect positive spoke type torque
Sensor measurement axis is perpendicular to floating bearing seat supports end mounting surface；
Step b) rotating shaft bearings are fixedly mounted and revolving support seat, rotating shaft bearing axis and spoke type torque sensor
Measure axis collinear；
Step c) rotating shaft bearing sleeves are fixedly installed in using flange end in revolving support seat；
Step d) center steerings axis coordinates with rotating shaft bearing sleeve for small―gap suture, the installation of center steering axis and rotating shaft bearing sleeve
Interior, fixing end is fixedly mounted with spoke type torque sensor side both ends；
The installation process that power calibrates transverse beam assembly with torque is as follows：
Step I rotating shaft link block is symmetrical relative to H-type crossbeam median plane, is fixedly installed in H-type crossbeam close to torque measuring
Component side is measured, is aligned below with H-type crossbeam top and bottom on rotating shaft link block；
Step II centralized positioning mounting blocks are symmetrically arranged on the both sides of H-type crossbeam, on centralized positioning mounting blocks below and H-type
Crossbeam top and bottom are aligned, and ensure that centralized positioning mounting blocks cluster center is conllinear with H-type crossbeam geometric center；
Step III pull rod connecting plate rotating shaft passes through pull rod connecting plate rotary hole that the center with H-type crossbeam both sides is fixedly mounted
On location and installation block, ensure pull rod connecting plate rotating shaft right angle setting.
The installation process for preloading component is as follows：
Step (1) preloads cable wire one end and is fixedly installed in torque measurement mounting plate geometric center point；
A pair of symmetrical angle pulley is fixedly installed on upper cover center line by step (2), ensure two pulley outer circles respectively with
Torque measurement mounting plate geometric center point and the extended line of upper cover front position through-hole formation preload counterweight mounting plate geometric center point
The extended line formed with position through-hole after upper cover is tangent；
Step (3) preloads the cable wire other end and is fixedly installed in preloading counterweight mounting plate geometric center point；
Step (4) pull rod connecting plate rotating shaft passes through in the fixed installation of pull rod connecting plate rotary hole and H-type crossbeam both sides
On heart location and installation block, ensure pull rod connecting plate rotating shaft right angle setting.
Advantageous effect
A kind of large size force value asymmetrical load power and torque decouple calibrating installation, compared with existing calibrating installation, have as follows
Advantageous effect：
1. a kind of large-scale force value asymmetrical load power of the present invention has simple in structure and closes with torque decoupling calibrating installation
Key member has the advantage of good accountability；
2. a kind of large-scale force value asymmetrical load power of the present invention decouples calibrating installation with torque, orthogonal survey can be effectively utilized
Applicability and decoupling precision that the syntagmatic between shafting promotes calibrating installation are measured, while calibration range can be surveyed according to drawing and pressing type
Force snesor and spoke type torque sensor measurement range are extended, to meet a variety of occasion measurement demands.
Description of the drawings
Fig. 1 is that large-scale force value asymmetrical load power decouples calibrating installation structural schematic diagram with torque；
Fig. 2 is torque measurement component structure diagram；
Fig. 3 is that power calibrates transverse beam assembly structural schematic diagram with torque；
Wherein, 1-tension and compression type load cell, 2-hypomere pull rods, 3-reverse thread sleeves, 4-epimere pull rods, 5-
Pull rod connecting plate, 6-pull rod connecting plate rotating shafts, 7-centralized positioning mounting blocks, 8-H-type crossbeams, 9-obliquity sensors,
10-rotating shaft link blocks, 11-center torque axis, 12-rotating shaft bearing sleeves, 13-rotating shaft bearings, 14-revolving support seats,
15-torque measurement mounting plates, 16-guide upright posts, 17-upper covers, 18-angle pulleies, 19-preloading cable wires, 20-standards are pre-
Counterweight, 21-preloading counterweight load plates, 22-linear bearings, 23-pedestals, 24-are carried by school proof force output device, 25-wheels
Spoke torque sensor.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
To keep the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, all belongs to the scope of protection of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
What the present embodiment was achieved through the following technical solutions:
A kind of large size force value asymmetrical load power and torque decouple calibrating installation, including installation braced frame, torque measurement group
Part, power and torque calibration transverse beam assembly preload component, tension and compression type load cell 1, obliquity sensor 9, are exported by school proof force
Device 24；
Such as attached drawing 1, the power and torque calibration transverse beam assembly geometric center and torque measurement component torque measurement axis are total
Line, power and torque calibration transverse beam assembly length direction central axis are vertical with torque measurement component torque measurement axis；The power
It is fixedly connected with torque measurement component torque measurement end with torque calibration transverse beam assembly, the two combination is integral can be in installation branch
It is moved along gravity direction under the guiding of support frame frame；The power and torque calibration transverse beam assembly length direction central axis relative to
Geometric center symmetric position is arranged by school proof force output device 24, by 24 outputting standard point of force application of school proof force output device
Transverse beam assembly is calibrated on length direction central axis positioned at power and torque；1 measurement end of the tension and compression type load cell and power
It is point articulated with torque calibration transverse beam assembly center；The torque measurement component measuring force calibrates transverse beam assembly center steering with torque
The coupling torque generated by asymmetrical load at axis, 1 measuring force of tension and compression type load cell calibrate transverse beam assembly geometry with torque
Center resultant force caused by asymmetrical load；The preloading component provides tension and compression type load cell 1 and measures axis direction
On preload force, ensure calibration process in tension and compression type load cell 1 be constantly in tension state；Obliquity sensor 9 is installed on
Power is at torque calibration transverse beam assembly upper surface center, and power calibrates transverse beam assembly deflection angle with torque in measuring center loading procedure
Degree.
The large-scale force value asymmetrical load power in torque decoupling calibrating installation, installation braced frame by pedestal 23, lead
To column 16, upper cover 17, preload counterweight load plate 21, torque measurement mounting plate 15 and the composition of linear bearing 22；Upper cover 17 is just
Rectangular, pedestal 23 is rectangle, and 17 length of side of wide and upper cover of rectangle is consistent, and upper cover 17 is installed on rectangle base by the support of guide upright post 16
The side of seat, upper cover three are aligned while with the three of pedestal 23；Pedestal 23 is fixed on concrete foundation, and installation process is by water
Level, which measures, ensures levelness.
It is vertical to install four guiding in braced frame with torque decoupling calibrating installation for the large-scale force value asymmetrical load power
16 one end of column is fixedly installed in the square diagonal line of upper cover 17 close to the position of angle point, and peace is fixed in remaining guide upright post one end
Loaded on 17 square center point position of upper cover, the other end is fixedly mounted on the corresponding position of pedestal 23；Preload counterweight load plate
21 are fixedly mounted two guide upright posts 16 that two 22 rear enclosures of linear bearing are aligned side in upper cover 17 and 23 narrow side of pedestal, torque
It measures mounting plate 15 and three linear bearings 22 being triangularly arranged is fixedly mounted, be sleeved on its excess-three guide upright post 16.
The large-scale force value asymmetrical load power is decoupled with torque in calibrating installation, under tension and compression type load cell 1 passes through
End pull rod 2, reverse thread sleeve 3 and epimere pull rod 4 are fixedly connected with pull rod connecting plate 5；The processing rotation of 3 both ends of reverse thread sleeve
To opposite screw thread, one end is connect with epimere pull rod 4, and the other end is connect with hypomere pull rod 2, adjusting yoke length；Hypomere pull rod 2
The other end is connected through a screw thread with tension and compression type load cell 1, and 4 other end of epimere pull rod is solid by nut with pull rod connecting plate 5
Fixed connection.
The large-scale force value asymmetrical load power in torque decoupling calibrating installation, preload component by angle pulley 18, pre-
It carries cable wire 19 and standard preloads counterweight 20 and forms, preload 19 one end of cable wire and be fixed on 15 geometric center point of torque measurement mounting plate,
17 position through-hole of upper cover is passed vertically through, by being fixedly installed in upper cover 17 a pair of symmetrical angle pulley 18, the other end and standard
21 geometric center point of counterweight load plate is preloaded to be fixedly connected；Standard is preloaded counterweight 20 and is added step by step using standard two level metering counterweight
It carries；Standard preloads counterweight 20 and generates preload force, avoids causing tension and compression type load cell 1 to be pressurized by structure gravity, ensures calibration
At the beginning of tension and compression type load cell 1 be in the state of tension, output, tension and compression are symmetrically then generated by school proof force output device 24
Formula load cell 1, which further stretches, generates measured value, and output increment of the tension and compression type load cell 1 on the basis of preloading is
The resultant force generated during 24 asymmetrical load of school proof force output device；Spoke type torque sensor 25 starts in calibration
Before not by torque, zero is ensured by installation accuracy.
Such as attached drawing 2, the large-scale force value asymmetrical load power is with torque decoupling calibrating installation, and torque measurement component is in
Heart torque axis 11, rotating shaft bearing sleeve 12, rotating shaft bearing 13 and revolving support seat 14 form；Revolving support seat 14 is L-shaped, inside
Equipped with reinforcing rib, 14 one end of revolving support seat is fixedly connected with torque measurement mounting plate 15, the other end and spoke type torque sensing
25 fixing end of device connects；Rotating shaft bearing sleeve 13 is hollow cylindrical body, and one end is machined with ring flange, 12 outer diameter of rotating shaft bearing sleeve with
13 internal diameter of rotating shaft bearing is consistent, and 12 internal diameter of rotating shaft bearing sleeve coordinates with 11 outer diameter small―gap suture of center torque axis；Rotating shaft bearing
13 be hollow cylindrical body, and internal diameter is more than the outer diameter of spoke type torque sensor 25, and both ends are machined with ring flange, rotating shaft bearing
It is sleeved on 25 outer one end of spoke type torque sensor to be fixedly connected with revolving support seat 14, the other end is solid with 12 flange of rotating shaft bearing sleeve
Fixed connection；Center torque axis 11 is cylindrical structure, and one end is welded with end cap, and the other end is on the outside of cylinder along extending centrally out pair
Position is claimed to weld mounting plate, center torque axis 11 welds end cap one end and is fixedly connected with 25 measurement end of spoke type torque sensor.
Such as attached drawing 3, for the large-scale force value asymmetrical load power with torque decoupling calibrating installation, power calibrates crossbeam with torque
Component is by pull rod connecting plate 5, pull rod connecting plate axis pin 6, centralized positioning mounting blocks 7, H-type crossbeam 8,10 groups of rotating shaft link block
At；8 installation direction of H-type crossbeam is consistent with load direction in calibration process；10 section of rotating shaft link block is T-type, and size is big
One end is consistent with outer lower face surface range arm cun on H-type crossbeam 8, the small one end of size and lower inner surface range arm cun on H-type crossbeam
Unanimously, small one section of rotating shaft connection block size is embedded in 8 inside grooves of H-type crossbeam, and two installations of rotating shaft link blocks 10 are along H
8 center line of type crossbeam is arranged symmetrically and welds post-processing installation surface, and specific installation site is installed with 11 extension of center torque axis
Plate Matching installation；7 section of centralized positioning mounting blocks is T-type, the big one end of size and outer lower face surface range arm cun on H-type crossbeam 8
Unanimously, the big one end thickness of size is less than the big one end thickness of 10 size of rotating shaft link block, the small one end of size and H-type crossbeam
Lower inner surface range arm cun is consistent on 8, and small one section of 7 size of centralized positioning mounting blocks is embedded in 8 inside grooves of H-type crossbeam, in
It is threaded hole at 7 geometric center of heart location and installation block；6 front end of pull rod connecting plate axis pin processes screw thread and is installed with centralized positioning
7 threaded hole of block connects, and rear end is that cylindrical pin coordinates with pull rod connecting plate 5, and pull rod connecting plate 5 can be around pull rod connecting plate axis pin 6
Axis turns round；Pull rod connecting plate 5 is U-shaped structure, and bottom end is fixedly connected with pull rod by nut by through-hole, the symmetrical hinge of upper end processing
Drilling coordinates with pull rod connecting plate axis pin 6.
Large-scale force value asymmetrical load power described in the present embodiment decouples calibrating installation with torque, and technical indicator is as follows：
● power calibration range：0~30KN；
● torque calibration range：0~15KNm；
● force value calibration accuracy：0.5%F.S；
● torque calibration precision：1%F.S；
● measurement reproducibility：0.1%；
● temperature drift：0.1%；
● time drift：0.1%；
● operating temperature：- 10 DEG C~60 DEG C；
● work relative humidity：HR95%.
Tension and compression type load cell 1 uses U.S.'s Lay to win the range of (Lebow) company production as the 3274-195 types of 100kN
Pull pressure sensor.The accuracy class of the sensor is 0.1%.Specific targets are shown in Table 1：
1 tension and compression type load cell technical indicator of table
Spoke type torque sensor uses the range that company of Sheng Di sensor technologies Co., Ltd of the country produces for 50KNm
SDC-203 type spoke type torque sensors.The accuracy class of the sensor is 0.5%.Specific targets are shown in Table 2：
2 spoke type torque sensor of table
| It exports (in range ability)：±22.5mV/V | Quiet overload capacity：200% |
| The linearity：± 0.05% | Drift (20 minutes)：<0.025% |
| It is sluggish：± 0.02% | Bridge resistance,：700Ω |
| Sensitivity：2.0±0.002mV/V | Use temperature range：- 20~+60 DEG C |
| Offset output：± 1.0%F.S | Zero temperature influences：0.005%F.S/1 DEG C |
| Output impedance：700±5Ω | Sensitivity temperature influences：0.03%F.S/1 DEG C |
| Repeatability：± 0.02%F.S | Applied voltage (direct current) 20V |
| Offset output：± 1.0% | Insulation resistance：>5000MΩ |
H-type crossbeam 8 is mainly used for decomposing and transmitting load, property of the rigidity and bearing capacity of itself to decoupling calibrating installation
Can have a great impact, be one of the critical component of large-scale force value asymmetrical load power and torque decoupling calibrating installation, it should using property
The good high strength low-carbon steel alloy of energy, preferably this calibrating installation select the 00Ni18Mo5Co8TiA1 steel of solid solution condition.Other hold
Power structural member is all made of the casting of steel to process to ensure that deformation is as small as possible, to reduce between power and moment components decoupling
Interference.
It is more that large-scale force value asymmetrical load power corresponding to the present embodiment and torque decoupling calibrating installation mainly solve large-scale force value
Component force system calibrated in situ asymmetrical load power and torque decouple collimation technique bottleneck, realize proof force and standard torque load
Accurate evaluation and examination, can be applied to hydraulic pressure or electric actuating cylinder asymmetrical load power and torque decoupling calibration, now watched with standard
Automatically controlled actuator is taken to be used as by school proof force output device 24.Large-scale force value asymmetrical load power and torque decoupling calibrating installation calibration
Before work starts, preloads the realization of 20 multistage loadings of counterweight using standard and tension and compression type load cell is preloaded, make its guarantor
Hold the state in tension.The automatically controlled actuator of standard servo is symmetrically arranged in H-type crossbeam both ends, standard output point of force application is located at
On H-type crossbeam axis.Calibration point is chosen according to the automatically controlled actuator proof force output area of standard servo, is added step by step using staged
Support method is respectively completed power and torque decoupling calibration, force value calibration data such as table 3, torque calibration data such as table 4.
3 force value calibration data of table
| Normal loading/KN | 1/KN is exported by school | 2/KN is exported by school | Calibration value/KN | Torque/Nm |
| 0 | 0 | 0 | 0 | 0 |
| 3 | 1.501 | 1.499 | 3.000 | 0 |
| 6 | 3.004 | 3.001 | 5.999 | 1.0 |
| 9 | 4.502 | 4.498 | 9.001 | 1.5 |
| 12 | 6.003 | 6.005 | 12.000 | 1.4 |
| 15 | 7.5001 | 7.499 | 14.997 | 1.2 |
| 18 | 9.001 | 8.999 | 18.000 | 2.0 |
| 21 | 10.501 | 10.498 | 21.003 | 1.6 |
| 24 | 12.005 | 12.000 | 24.000 | 2.1 |
| 27 | 13.501 | 13.499 | 27.000 | 1.9 |
| 30 | 15.004 | 15.000 | 29.999 | 1.4 |
4 torque calibration data of table
| Normal loading/KNm | 1/KN is exported by school | 2/KN is exported by school | Calibration value/KNm | Power/KN |
| 0 | 0 | 0 | 0 | 0 |
| 3 | 0 | 6.000 | 3.003 | 6.000 |
| 6 | 0 | 12.002 | 6.000 | 12.000 |
| 9 | 0 | 18.005 | 8.999 | 18.003 |
| 12 | 0 | 24.000 | 12.001 | 24.000 |
| 15 | 0 | 30.000 | 15.998 | 30.000 |
Test data shows that large size may be implemented with torque decoupling calibrating installation in the large-scale force value asymmetrical load power of the present invention
Force value multi -components dynamometric system calibrated in situ asymmetrical load power and torque decouple collimation technique bottleneck, realize proof force and proof force
The accurate evaluation of square load and examination have good feasibility, and corresponding apparatus structure is simple, critical component price is low
It is honest and clean, dependable performance.
The above is presently preferred embodiments of the present invention, and it is public that the present invention should not be limited to embodiment and attached drawing institute
The content opened.It is every not depart from the lower equivalent or modification completed of spirit disclosed in this invention, both fall within the model that the present invention protects
It encloses.
Claims (6)
1. a kind of large size force value asymmetrical load power decouples calibrating installation with torque, it is characterised in that：Core concept is with standard list
Component tension-compression sensor and standard torque sensor orthogonal direction arrangement, i.e., passed with tension and compression type load cell and spoke type torque
Sensor measures component as core, and realization decouples large-scale force value asymmetrical load power and torque, directly measures large-scale power
It is worth proof force and standard torque synthesized by asymmetrical load, with the synergisticing performance of this evaluation criterion power output device, while discloses power
Coupling influence relationship between torque, ensure during large-scale force value multi -components dynamometric system calibrated in situ simple component load and
The accuracy of multi -components load；
Including installation braced frame, torque measurement component, power and torque calibration transverse beam assembly, preload component, drawing and pressing type dynamometry biography
Sensor, obliquity sensor, by school proof force output device；
Wherein, installation braced frame is by pedestal, guide upright post, upper cover, preloading counterweight load plate, torque measurement mounting plate and straight line
Bearing forms；Wherein, upper cover is square, and pedestal is rectangle, also referred to as rectangular susceptor, the wide and upper cover length of side one of rectangular susceptor
It causes；
The quantity of guide upright post is 4；The quantity of linear bearing is 4；Pedestal, upper cover, preloads counterweight load plate at guide upright post
And torque measurement mounting plate is 1；
Torque measurement component is by spoke type torque sensor, center torque axis, rotating shaft bearing sleeve, rotating shaft bearing and revolving support
Seat composition；
Wherein, revolving support seat is L-shaped, and inside is equipped with reinforcing rib, and revolving support seat one end is fixed with torque measurement mounting plate to be connected
It connects, the other end is connect with spoke type torque sensor fixing end；Rotating shaft bearing sleeve is hollow cylindrical body, and one end is machined with flange
Disk, rotating shaft bearing sleeve outer diameter is consistent with rotating shaft seat inner diameter, and rotating shaft bearing sleeve internal diameter is matched with center torque axis outer diameter small―gap suture
It closes；Rotating shaft bearing is hollow cylindrical body, and internal diameter is more than the outer diameter of spoke type torque sensor, and both ends are machined with ring flange,
Floating bearing cover for seat one end outside spoke type torque sensor is fixedly connected with revolving support seat, the other end and rotating shaft bearing sleeve method
Orchid is fixedly connected；Center torque axis is cylindrical structure, and one end is welded with end cap, and other end edge on the outside of cylinder extends centrally out
Symmetric position welds mounting plate, and center torque axis welding end cap one end is fixedly connected with spoke type torque sensor measurement end；
Power calibrates transverse beam assembly by pull rod connecting plate, pull rod connecting plate rotating shaft, centralized positioning mounting blocks, H-type crossbeam with torque
It is formed with rotating shaft link block；
Wherein the pull rod connecting plate revolution number of axle is 2；Rotating shaft link block is square, and quantity is 2；Centralized positioning is installed
Block is square, and quantity is 2；Remaining component part quantity is 1；
The connection relation that large-scale force value asymmetrical load power decouples calibrating installation with torque is as follows：
Power is connected with torque calibration transverse beam assembly with torque measurement component, then is connected with installation braced frame；Drawing and pressing type dynamometry passes
Sensor is connected with power with torque calibration transverse beam assembly；It preloads component with tension and compression type load cell to be connected, obliquity sensor and power
It is connected with torque calibration transverse beam assembly, is connected with power with torque calibration transverse beam assembly by school proof force output device；
The connection relation for installing braced frame is as follows：Guide upright post both ends are connected with pedestal and upper cover respectively；Preload counterweight load
Plate is connected with linear bearing；Torque measurement mounting plate is connected with linear bearing；Linear bearing is connected with guide upright post；
The connection relation of torque measurement component is as follows：Spoke type torque sensor fixing end is connected with revolving support seat, measurement end
It is connected with center torque axis；Rotating shaft bearing sleeve inner ring is connected with center torque axis, and outer ring is connected with rotating shaft bearing；
The connection relation that power calibrates transverse beam assembly with torque is as follows：
Rotating shaft link block is connected with H-type crossbeam；Centralized positioning mounting blocks are connected with H-type crossbeam, and then pull rod connecting plate turns round
Axis one end is connected with centralized positioning mounting blocks, and the other end is connected with pull rod connecting plate；
The connection relation for preloading component is as follows：
It preloads cable wire one end with torque measurement mounting plate geometric center point to be connected, passes vertically through upper cover and torque measurement mounting plate collection
Corresponding position through-hole in central point vertical direction is closed, by a pair of symmetrical angle pulley on upper cover center line, the other end and mark
The preloading counterweight load plate geometric center point of standard is connected.
2. large size force value asymmetrical load power according to claim 1 decouples calibrating installation with torque, it is characterised in that：It is described
Power calibrates crossbeam group with torque calibration transverse beam assembly geometric center and torque measurement component torque measurement axis collinear, power with torque
Part length direction central axis is vertical with torque measurement component torque measurement axis；The power and torque calibration transverse beam assembly and torsion
Square measurement assembly torque measurement end is fixedly connected, and the two combination is integral can be under the guiding of installation braced frame along gravity side
To movement；
H-type crossbeam installation direction is consistent with load direction in calibration process；Rotating shaft link block section is T-type, size it is big one
End is consistent with outer lower face surface range arm cun on H-type crossbeam, the small one end of size and lower inner surface range arm cun one on H-type crossbeam
It causes, small one section of rotating shaft connection block size is embedded in H-type crossbeam inside grooves, and two rotating shaft link blocks installations are along H-type cross
Beam center line is arranged symmetrically and welds post-processing installation surface, and specific installation site matches peace with center torque axis extension mounting plate
Dress；Centralized positioning mounting blocks section is T-type, and the big one end of size is consistent with outer lower face surface range arm cun on H-type crossbeam, and size is big
One end thickness be less than the big one end thickness of rotating shaft connection block size, the small one end of size and lower inner surface on H-type crossbeam away from
Consistent from size, small one section of centralized positioning installation block size is embedded in H-type crossbeam inside grooves, centralized positioning mounting blocks geometry
Hole is threaded at center；Pull rod connecting plate axis pin front end processing screw thread is connect with centralized positioning mounting blocks threaded hole, rear end
Coordinate for cylindrical pin and pull rod connecting plate, pull rod connecting plate can be turned round around pull rod connecting plate axis pin axis；Pull rod connecting plate is U
Type structure, bottom end are fixedly connected with pull rod by nut by through-hole, and upper end processes symmetrical articulation hole and matches with pull rod connecting plate axis pin
It closes；
Wherein, power is arranged relative to geometric center symmetric position by school with torque calibration transverse beam assembly in length direction central axis
Proof force output device is located at power by school proof force output device outputting standard point of force application and calibrates transverse beam assembly in length with torque
It spends on the central axis of direction；The tension and compression type load cell measurement end and power and torque calibration transverse beam assembly center are point articulated.
3. large size force value asymmetrical load power according to claim 1 decouples calibrating installation with torque, it is characterised in that：Tension and compression
Formula load cell is fixedly connected by bottom end pulling bar, reverse thread sleeve and epimere pull rod with pull rod connecting plate；Reverse thread
Sleeve both ends process oppositely oriented screw thread, and one end is connect with epimere pull rod, and the other end is connect with hypomere pull rod, and adjusting yoke is long
Degree；The hypomere pull rod other end is connected through a screw thread with tension and compression type load cell, and the epimere pull rod other end is logical with pull rod connecting plate
Nut is crossed to be fixedly connected.
4. large size force value asymmetrical load power according to claim 1 decouples calibrating installation with torque, it is characterised in that：It is described
The coupling torque generated by asymmetrical load at torque measurement component measuring force and torque calibration transverse beam assembly center steering axis, draws
Pressure type load cell measuring force and the resultant force caused by asymmetrical load at torque calibration transverse beam assembly geometric center point.
5. large size force value asymmetrical load power according to claim 1 decouples calibrating installation with torque, it is characterised in that：It is described
Component is preloaded to be made of angle pulley, preloading cable wire and the preloading counterweight of standard；
Wherein, it preloads cable wire one end and is fixed on torque measurement mounting plate geometric center point, pass vertically through upper cover position through-hole, pass through
A pair of symmetrical angle pulley is fixedly installed on lid, and the other end preloads counterweight load plate geometric center point and fix with standard to be connected
It connects；Standard preloads counterweight and measures counterweight multistage loadings using standard two level；Standard preloads counterweight and generates preload force, avoids by structure
Gravity causes tension and compression type load cell to be pressurized, and tension and compression type load cell is in the state of tension at the beginning of ensureing to calibrate, then
Output is symmetrically generated by school proof force output device, tension and compression type load cell, which further stretches, generates measured value, and drawing and pressing type is surveyed
Output increment of force snesor on the basis of preloading be by school proof force output device asymmetrical load during the resultant force that generates；
Not by torque before calibration starts, zero is ensured spoke type torque sensor by installation accuracy；
The function of preloading component is to provide the preload force on tension and compression type load cell measurement axis direction, ensures in calibration process
Tension and compression type load cell is constantly in tension state；Obliquity sensor is installed on power and is calibrated in transverse beam assembly upper surface with torque
At the heart, power calibrates transverse beam assembly deflection angle with torque in measuring center loading procedure.
6. large size force value asymmetrical load power according to claim 1 decouples calibrating installation with torque, it is characterised in that：It is large-scale
The installation process difference that force value asymmetrical load power decouples each comprising modules in calibrating installation with torque is as follows：
The installation process for installing braced frame is as follows：
Step 1) upper cover is installed on the side of rectangular susceptor by guide upright post support, and upper cover three is while with the three of rectangular susceptor
Alignment；
Step 2) pedestal is fixed on concrete foundation, and installation process ensures levelness by level measurement；
Four guide upright post one end of step 3) are fixedly installed in upper cover square diagonal line close to the position of angle point, remaining one is led
It is fixedly installed in upper cover square center point position to column one end, the other end is fixedly mounted on the corresponding position of pedestal；
Step 4) preloads counterweight load plate two linear bearing rear enclosures of fixed installation and is aligned the two of side in upper cover and pedestal narrow side
A guide upright post；
Step 5) square measures mounting plate and three linear bearings being triangularly arranged is fixedly mounted, and is sleeved on its excess-three guide upright post
On；
The installation process of torque measurement component is as follows：
Step a) spoke type torque sensor fixing ends are fixedly installed in revolving support seat supports end, protect positive spoke type torque sensing
Device measures axis perpendicular to floating bearing seat supports end mounting surface；
Step b) rotating shaft bearings, which are fixedly mounted, to be measured with revolving support seat, rotating shaft bearing axis with spoke type torque sensor
Axis collinear；
Step c) rotating shaft bearing sleeves are fixedly installed in using flange end in revolving support seat；
Step d) center steerings axis coordinates with rotating shaft bearing sleeve for small―gap suture, in the installation of center steering axis and rotating shaft bearing sleeve, Gu
Fixed end is fixedly mounted with spoke type torque sensor side both ends；
The installation process that power calibrates transverse beam assembly with torque is as follows：
Step I) rotating shaft link block is symmetrical relative to H-type crossbeam median plane, H-type crossbeam is fixedly installed in close to torque measurement group
Part side is aligned below with H-type crossbeam top and bottom on rotating shaft link block；
Step II) centralized positioning mounting blocks are symmetrically arranged on the both sides of H-type crossbeam, on centralized positioning mounting blocks below with H-type cross
Beam top and bottom are aligned, and ensure that centralized positioning mounting blocks cluster center is conllinear with H-type crossbeam geometric center；
It is fixed with the center of H-type crossbeam both sides that step III) pull rod connecting plate rotating shaft passes through pull rod connecting plate rotary hole to be fixedly mounted
On the mounting blocks of position, ensure pull rod connecting plate rotating shaft right angle setting；
The installation process for preloading component is as follows：
Step (1) preloads cable wire one end and is fixedly installed in torque measurement mounting plate geometric center point；
A pair of symmetrical angle pulley is fixedly installed on upper cover center line by step (2), ensure two pulley outer circles respectively with torque
Measure extended line that mounting plate geometric center point and upper cover front position through-hole formed, preload counterweight mounting plate geometric center point and on
The extended line that position through-hole is formed after lid is tangent；
Step (3) preloads the cable wire other end and is fixedly installed in preloading counterweight mounting plate geometric center point；
It is fixed with the center of H-type crossbeam both sides that step (4) pull rod connecting plate rotating shaft passes through pull rod connecting plate rotary hole to be fixedly mounted
On the mounting blocks of position, ensure pull rod connecting plate rotating shaft right angle setting.
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