CN106644260A - 2MN dead load overlapping composite-type force standard machine - Google Patents
2MN dead load overlapping composite-type force standard machine Download PDFInfo
- Publication number
- CN106644260A CN106644260A CN201710060727.2A CN201710060727A CN106644260A CN 106644260 A CN106644260 A CN 106644260A CN 201710060727 A CN201710060727 A CN 201710060727A CN 106644260 A CN106644260 A CN 106644260A
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- China
- Prior art keywords
- frame
- force standard
- counterweight
- suspension rod
- standard machine
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Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a 2MN dead load overlapping composite-type force standard machine, and the force standard machine comprises an upper part loading mechanism and a rack. The upper part loading mechanism comprises an upper beam, a pedestal, four ball screws, a moving beam, and four peripheral supporting columns. The four ball screws pass through the upper beam and the pedestal, and the moving beam is disposed on the four ball screws in a sleeved manner. The rack is located below the pedestal. The rack forms a rigid cage-shaped structure. The force standard machine also comprises a 2MN oil cylinder piston, a pressure bearing plate, and a standard sensor group. The 2MN oil cylinder piston is disposed on the upper beam. The standard sensor group consists of three 680KN sensors, and is embedded into the moving beam. The pressure bearing plate is disposed on the moving beam. The force standard machine combines a dead-load type force standard machine and an overlapping-type force standard machine into one, and effectively improves the utilization rate and detection efficiency of equipment. The force standard machine achieves the design and manufacturing of a suspension mechanism for no-obstacle disassembly of weights.
Description
【Technical field】
The invention belongs to the technical field of force standard machines, specifically refers to a kind of 2MN dead weights superimposion formula force standard machines.
【Background technology】
Force measure has important relation with national economic construction, national defense construction, scientific research and people's lives.Power
Standard set-up is generation standard force value, for examining and determine, calibrating the Force measure standard of standard dynamometer or force transducer, referred to as
Force standard machines.Force standard machines generally has four types：Dead weight type safe, lever, fluid pressure type and superposing type.
Force value is produced using the gravity of counterweight in earth gravitational field and sets up force value base, standard, counterbalance mass is directly traceable to
Quality standard, it is possible to obtain higher accuracy, the force standard machines of this type are referred to as " Dead Weigh Force Standard Machine ".At present,
Countries in the world adopt Dead Weigh Force Standard Machine as the benchmark of magnitude tracing, and maximum Dead Weigh Force Standard Machine is beautiful in the world
State's national standard and the 1000klbf (about 4.5MN) of technical research institute (NIST), force value are 0.002% with respect to expanded uncertainty
(k=3)；The Dead Weigh Force Standard Machine of Largest In China is stored in the 1MN force value National primary standards of China Testing Technology Institute, power
The relative expanded uncertainty of value is 0.002% (k=3).Dead Weigh Force Standard Machine is bulky, involve great expense, because of its accuracy
Highest, countries in the world set up the highest standard (benchmark) as Force measure.
Using force transducer as reference standard, and tested sensor series, mechanically or hydraulically to apply load
The force standard machines of this type is referred to as " superposing type force standard machine " by force standard machines in the world.Due to superposing type force standard machine
Simple structure cost is relatively low, and accuracy is high without Dead Weigh Force Standard Machine but can meet the needs of calibrating, calibration, therefore
Adopted by countries in the world.
【The content of the invention】
The technical problem to be solved is to provide a kind of 2MN dead weights superimposion formula force standard machines, is realized quiet
Weight formula force standard machines and superposing type force standard machine it is two-in-one, effectively improve utilization rate of equipment and installations and detection efficiency.
What the present invention was realized in：
2MN dead weight superimposion formula force standard machineses, including top load maintainer, frame；The top load maintainer includes
Upper beam, base, four ball screws, trave lling girder, four support columns of periphery；Four ball-screws be arranged in the upper beam and
The base, the trave lling girder are set on four ball-screws；The frame is located at below the base；The frame
The rigid cage structure of composition one；Also include 2MN oil cylinder pistons, bearing plate and standard transducer group；The 2MN oil cylinder pistons peace
Loaded on the upper beam；The standard transducer group is by 3 680KN sensor groups into its installation by adhering is in the trave lling girder
In；The bearing plate is arranged on the trave lling girder.
Further, the top load maintainer is additionally provided with reverser, pulls to connector；Center is provided with the frame
Suspension rod；The reverser includes upper bracket, column, undersetting；Pass through the column between the upper bracket and the undersetting
Connection；The column is located on the trave lling girder, and the upper undersetting is located at the trave lling girder upper and lower respectively；It is described to pull to
It is threaded connection between connector and the center suspension rod；Pass through a joint shaft between the undersetting and the center suspension rod
Hold connection；The oscillating bearing include one have centre bore ball joint, located at the arc of the undersetting inside bottom
Shape face supporting piece；The ball joint with centre bore is sheathed on the center suspension rod；The sphere with centre bore connects
Fitting bottom is sphere, is abutted against with the arcwall face supporting piece；The quantity of the column be three, the upper bracket with it is described
Between undersetting, interval is uniformly distributed.
Further, the bottom of the frame is mounting seat；The mounting seat is hollow structure, and one side is transmission；One weight
Code dismounting travel mechanism stretch in the mounting seat hollow structure from the mounting seat transmission position, for by counterweight from frame
Take out；One outside elevating mechanism is stretched in frame, for counterweight is lifted in frame；Center is provided with the frame to hang
Bar, counterweight, weight tray, cutting ferrule；The counterweight and weight tray are sheathed on the center suspension rod；Set on the center suspension rod
There is a groove；The cutting ferrule is two semicircular snap rings；The second sleeve connection is arranged in the groove；The counterweight
The outward flange of pallet is extended downwardly, and the cutting ferrule being arranged in the groove is entered row constraint just.
Further, the frame inner bottom part center is equiped with a hangar system stress state detection means, including an inspection
Survey seat, six contactless probes；The detection seat is cirque structure, concentric with hangar system；The detection seat includes substrate
Portion, ring part；Six contactless probes are uniformly distributed on the ring part.
Further, the contactless probe is non-contact displacement transducer.
It is an advantage of the current invention that：
2MN dead weights superimposion formula power standard set-up of the present invention, is designed using dead weight superimposion formula, can effectively improve inspection
Survey efficiency and utilization rate of equipment and installations.The present invention is improved design to Dead Weigh Force Standard Machine structure emphatically, is specially capable of achieving nothing
The hanging mechanism design and manufacture of obstacle dismounting counterweight, the design of superposition dead weight combined type rack construction and manufacture.
【Description of the drawings】
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the chopped-off head hanging part-structure schematic diagram in the present invention.
Fig. 3 is the oscillating bearing part-structure schematic diagram in the present invention.
Fig. 4 is the rack construction schematic diagram in the present invention.
Fig. 5 is counterweight and weight tray apparatus structure schematic diagram in the present invention.
Fig. 6 is the hangar system stress state detection means in the present invention.
【Specific embodiment】
As shown in figure 1,2MN dead weight superimposion formula force standard machineses, including top load maintainer 1, frame 2；The top
Load maintainer 1 includes upper beam 11,12, four ball screws 13 of base, trave lling girder 14, four support columns 15 of periphery；Described four
Ball-screw 13 is arranged in the upper beam 11 and the base 12, and the trave lling girder 14 is set in four ball-screws 13
On；The frame 2 is located at below the base 12；The frame 2 constitutes a rigid cage structure；Also live including 2MN oil cylinders
Plug 3, bearing plate 4 and standard transducer group 5；The 2MN oil cylinder pistons 3 are installed on the upper beam 11；The standard transducer
5 are organized by 3 680KN sensor groups into its installation by adhering is in the trave lling girder 14；The bearing plate 4 is arranged at the shifting
On dynamic beam 14.2MN dead weights superimposion formula power standard set-up of the present invention, is designed using dead weight superimposion formula, can be effectively improved
Detection efficiency and utilization rate of equipment and installations.
As shown in Figures 2 and 3, it is additionally provided with reverser 6, pulls to connector 7 in the top load maintainer 1；The machine
Center suspension rod 8 is provided with frame 2；The reverser 6 includes upper bracket 61, column 62, undersetting 63；Upper bracket 61 and undersetting 63
Between connected by column 62；The column 62 is located on the trave lling girder 14, and the upper undersetting 61,63 is located at institute respectively
State 14 upper and lower of trave lling girder；Pull to and be threaded connection between connector 7 and center suspension rod 8；The undersetting 63 with it is described in
Connected by an oscillating bearing 9 between heart suspension rod 8；The oscillating bearing 9 include one have centre bore ball joint 91,
Located at the arcwall face supporting piece 92 of 63 inside bottom of the undersetting；The ball joint 91 with centre bore is sheathed on described
Center suspension rod 8；91 bottom of ball joint with centre bore is sphere, is abutted against with the arcwall face supporting piece 92；Institute
The quantity for stating column 62 is three, is spaced and is uniformly distributed between the upper bracket 61 and the undersetting 63.The present invention's is anti-
Separable to device 6 and center suspension rod 8, reverser work when carrying out pressing to test to measured piece, reverser load are 20kN, as
The chopped-off head load of force standard machines.When carrying out pulling to test to measured piece, reverser 6 is disengaged with center suspension rod 8, is not worked, it is to avoid
Reverser 6 is inclined, swings the impact to accuracy of measurement.As reverser 6 is separable with center suspension rod 8, whole machine is capable of achieving
Examine and determine by code in 20kN to 2MN range abilities, expand range ability, raising pulls to the accuracy of test measurement.
As shown in figure 4,2 bottom of the frame is mounting seat 10；The mounting seat 10 is hollow structure, and one side is
It is empty；One counterweight dismounting travel mechanism 20 is stretched in 10 hollow structure of the mounting seat from 10 transmission position of the mounting seat, is used for
Counterweight is taken out from frame 2；One outside elevating mechanism (not shown) is stretched in frame 2, for counterweight is carried out in frame 2
Lifting；As shown in figure 5, be provided with the frame 2 counterweight loading and unloading body 400, center suspension rod 8, counterweight 21, weight tray 22,
Cutting ferrule 23；The counterweight 21 and weight tray 22 are sheathed on the center suspension rod 8；The center suspension rod 8 is provided with a groove
81；The cutting ferrule 23 is two semicircular snap rings；The second sleeve connection is arranged in the groove 81；The counterweight support
The outward flange of disk 22 is extended downwardly, and the cutting ferrule 23 being arranged in the groove 81 is entered row constraint just.Counterweight is facilitated quickly to tear open
Unload.Start to dismantle counterweight when force standard machines does not work, now counterweight is positioned on counterweight loading and unloading body 400, during dismantlement work,
Counterweight dismounting travel mechanism 20 is moved to into counterweight bottom, will be moved on weight tray, the circular snap ring (cutting ferrule 23) of two halves does not have
The constraint of weight tray 22, is removed, and then weight tray 22 just clog-free can move to 8 bottom of center suspension rod, will
The counterweight being placed on counterweight loading and unloading body 20 is held up with outside elevating mechanism, and counterweight is rotated to an angle, outside lifting
Mechanism can be examined and determine in the counterweight clog-free counterweight dismounting travel mechanism for being transported to bottom of the frame after removing counterweight.
The counterweight 21 being set on center suspension rod 8 and weight tray 22 are from bottom to top dismantled by above-mentioned steps step by step, it is ensured that all counterweights
With counterweight erecting by overhang can accessible fast assembling-disassembling, to examine and determine.
As shown in fig. 6,2 inner bottom part center of the frame is equiped with a hangar system stress state detection means, including one
Detection seat 100, six it is contactless probe 200；The detection seat 100 is cirque structure, concentric with hangar system；The detection
Seat 100 includes basilar parts 101, ring part 102；Six contactless probes 200 are uniformly distributed on the ring part.It is described
Contactless probe 200 is non-contact displacement transducer.Center suspension rod can be calculated according to the measurement result of six contactless heads
With the inclined inclination conditions of reverser.Stop test when being tilted beyond and allowing to require, reexamine riding position of measured piece etc.
Hanging beat factor is affected, is tested after adjustment again, improve measurement accuracy.
The present invention is improved design to Dead Weigh Force Standard Machine structure emphatically, is capable of achieving the hanging of accessible dismounting counterweight
Mechanism designs and manufacture, and superposition dead weight combined type rack construction is designed and manufacture.
The preferable enforcement use-case of the present invention is the foregoing is only, protection scope of the present invention is not intended to limit.It is all
Within the spirit and principles in the present invention, any modification, equivalent and improvement for being made etc., should be included in the present invention's
Within protection domain.
Claims (5)
1.2MN dead weight superimposion formula force standard machineses, including top load maintainer, frame；The top load maintainer includes
Beam, base, four ball screws, trave lling girder, four support columns of periphery；Four ball-screws are arranged in the upper beam and institute
Base is stated, the trave lling girder is set on four ball-screws；The frame is located at below the base；The frame group
Into a rigid cage structure；It is characterized in that：Also include 2MN oil cylinder pistons, bearing plate and standard transducer group；The 2MN
Oil cylinder piston is installed on the upper beam；The standard transducer group by 3 680KN sensor groups into, its installation by adhering in
In the trave lling girder；The bearing plate is arranged on the trave lling girder.
2. 2MN dead weights superimposion formula force standard machines as claimed in claim 1, it is characterised in that：The top load maintainer
It is additionally provided with reverser, pulls to connector；Center suspension rod is provided with the frame；The reverser include upper bracket, column, under
Bearing；Connected by the column between the upper bracket and the undersetting；The column is located on the trave lling girder, institute
State undersetting and be located at the trave lling girder upper and lower respectively；Described being pulled to connected by screw thread between connector and the center suspension rod
Connect；Connected by an oscillating bearing between the undersetting and the center suspension rod；The oscillating bearing includes that one has
The ball joint in heart hole, located at the arcwall face supporting piece of the undersetting inside bottom；Sphere with the centre bore connection
Part is sheathed on the center suspension rod；The ball joint bottom with centre bore is sphere, with the arcwall face supporting piece phase
Abut；The quantity of the column is three, is spaced and is uniformly distributed between the upper bracket and the undersetting.
3. 2MN dead weights superimposion formula force standard machines as claimed in claim 1, it is characterised in that：The bottom of the frame is peace
Dress seat；The mounting seat is hollow structure, and one side is transmission；The counterweight loading and unloading body is arranged on the inside of the frame
Wall；One counterweight dismounting travel mechanism is stretched in the mounting seat hollow structure from the mounting seat transmission position, for by counterweight
Take out from frame；One outside elevating mechanism is stretched in frame, for counterweight is lifted in frame；Set in the frame
There are center suspension rod, counterweight, weight tray, cutting ferrule；The counterweight and weight tray are sheathed on the center suspension rod；The center
Suspension rod is provided with a groove；The cutting ferrule is two semicircular snap rings；The second sleeve connection is arranged in the groove；
The outward flange of the weight tray is extended downwardly, and the cutting ferrule being arranged in the groove is entered row constraint just.
4. 2MN dead weights superimposion formula force standard machines as claimed in claim 1, it is characterised in that：In the frame inner bottom part
The heart is equiped with a hangar system stress state detection means, including a detection seat, six contactless probes；The detection seat is circle
Loop configuration, it is concentric with hangar system；The detection seat includes basilar parts, ring part；Uniform point of six contactless probes
It is distributed on the ring part.
5. 2MN dead weights superimposion formula force standard machines as claimed in claim 4, it is characterised in that：It is described it is contactless probe be
Non-contact displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060727.2A CN106644260B (en) | 2017-01-25 | 2017-01-25 | 2MN dead weight superposition composite force standard machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060727.2A CN106644260B (en) | 2017-01-25 | 2017-01-25 | 2MN dead weight superposition composite force standard machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644260A true CN106644260A (en) | 2017-05-10 |
| CN106644260B CN106644260B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710060727.2A Active CN106644260B (en) | 2017-01-25 | 2017-01-25 | 2MN dead weight superposition composite force standard machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760016A (en) * | 2018-07-23 | 2018-11-06 | 广东省计量科学研究院 | A kind of novel standard machine |
| CN112556923A (en) * | 2020-12-09 | 2021-03-26 | 福州大学 | Weight optimal configuration method of large-force-value dead weight type force standard machine |
| CN113188643A (en) * | 2021-04-26 | 2021-07-30 | 陕西省计量科学研究院 | Calibrating device of large-scale electronic hanging scale |
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| CN108760016B (en) * | 2018-07-23 | 2023-11-24 | 广东省计量科学研究院 | Novel standard machine |
| CN112556923A (en) * | 2020-12-09 | 2021-03-26 | 福州大学 | Weight optimal configuration method of large-force-value dead weight type force standard machine |
| CN113188643A (en) * | 2021-04-26 | 2021-07-30 | 陕西省计量科学研究院 | Calibrating device of large-scale electronic hanging scale |
| CN113188643B (en) * | 2021-04-26 | 2022-10-18 | 陕西省计量科学研究院 | Calibrating device of large-scale electronic hanging scale |
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| Publication number | Publication date |
|---|---|
| CN106644260B (en) | 2023-07-25 |
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