CN102478440A - Novel mechanical force measuring machine and calibration method - Google Patents
Novel mechanical force measuring machine and calibration method Download PDFInfo
- Publication number
- CN102478440A CN102478440A CN2010105542130A CN201010554213A CN102478440A CN 102478440 A CN102478440 A CN 102478440A CN 2010105542130 A CN2010105542130 A CN 2010105542130A CN 201010554213 A CN201010554213 A CN 201010554213A CN 102478440 A CN102478440 A CN 102478440A
- Authority
- CN
- China
- Prior art keywords
- frame
- compression displacement
- measuring machine
- force measuring
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention belongs to the field of measuring instruments, in particular to a large mechanical force measuring machine. The novel mechanical force measuring machine mainly consists of a machine body, a frame, a weighing sensor set, a power mechanism, a pressurizing mechanism, a compression displacement multiplication mechanism and an operating instrument, wherein the power mechanism is composed of a stepper motor and a cycloidal-pin wheel decelerator and fixed above a base of the machine body; the pressurizing mechanism is composed of a pressurizing screw rod and a screw nut, and a forced direction of the pressurizing mechanism is changed by a force transmission lever; for bringing convenience to calibration work of the force measuring machine, an integrated package-type frame is composed of a frame with four upright posts and the compression displacement multiplication mechanism on a surface of a bearing table; and the displacement of the frame is increased by ten times in comparison with the deformation of a sensor per se by compressing a disc spring in the compression displacement multiplication mechanism to shrink under pressure. In an embodiment of the invention, a measurement precision value can easily reach 1/640,000.
Description
Technical field
The invention belongs to the surveying instrument field, especially big machinery formula (no hydraulic pressure) force measuring machine.
Background technology
As everyone knows, large-scale high-precision side force machine uses the high precision standard to dispel yard (each 1t) usually, when weighing reaches tens of ton hours, because of the volume of the sign indicating number of dispelling is big, requires high to use equipment and environmental baseline.This type side force body is long-pending huge, and it is high highly to reach several floors, and weight reaches tens tons even more than 100 ton, and price is very high.
Also have a kind of common comparison formula side force machine, after the hydraulically operated equipment (HOE) pressurization, measure as standard by single high-precision weighing sensor.Because inevitably to receive the significant impact of hydraulic power source motor oscillating, hydraulic pressure fluctuation and hydraulic leak, and the restriction of single LOAD CELLS error, this type of side force machine precision is lower.Simultaneously because of the maximum distortion of LOAD CELLS own only at 0.3mm about, control the side accuracy of measurement with the mode of mechanical-force-transmission screw press and have any problem.
Also have two my patent and patented claims, can be used as high-accuracy mechanical formula (no hydraulic pressure) side force machine:
First ZL99259068.0, a kind of LOAD CELLS appliance special for detecting: the LOAD CELLS appliance special for detecting is made up of body, frame, LOAD CELLS, actuating unit pressing mechanism and operation instrument.Between frame and bearing platform table top, the compression displacement of being made up of some springs increases a times mechanism; The actuating unit of forming by controllable motor and cycloidal-pin wheel speed reduction unit; When the pressing mechanism that drive is made up of screw rod and nut pressurizes automatically; The spring that compression displacement increases in times mechanism shrinks under pressure, and the frame displacement is big than the tens of multiplications of sensor distortion itself, thereby carries out pressure control easily.Simultaneously, between the base of body and bearing platform, form sensor groups, can significantly improve measuring accuracy with some LOAD CELLSs.
It two is the 99127549.7 1 kinds of electronic crane scale appliance special for detecting in Shen: the electronic crane scale appliance special for detecting mainly is made up of body, frame, LOAD CELLS, actuating unit, pressing mechanism and operation instrument.This body is made up of base and bearing platform, and the sensor groups that some LOAD CELLSs are formed is placed between base and the bearing platform; Frame is a door type; On housiung separator, forming clamping device by adjustment screw rod, handwheel and anchor clamps can be by test product adjusted size relevant position; This clamping device can be done 360 ° of revolutions around the cubing axial line in the crossbeam hole simultaneously, hangs the requirement of title by standard GB 11883-89 rotary tests to satisfy electronics; Actuating unit is fixed on the body base, is made up of controllable motor and cycloidal-pin wheel speed reduction unit, and the pressing mechanism of being made up of screw rod and nut is controlled automatically.
These two kinds of inventions are very close products.Find in the practice that when the pressing mechanism that adopts the direct drive of the actuating unit of being made up of controllable motor and cycloidal-pin wheel speed reduction unit to be made up of screw rod and nut pressurizeed automatically, this mechanism was complicated and very big; At this moment the cycloidal-pin wheel speed reduction unit is run counter to design general knowledge and is squeezed installation, and the not smooth equipment of lubricant passage way damages easily; The actuating unit that controllable motor and cycloidal-pin wheel speed reduction unit are formed is placed in the underground dell, and installation, maintenance is extremely inconvenient; Because weighing is very big, volume was very huge when the compression displacement of being made up of some springs that above-mentioned patent adopts increased in times mechanism the common stage clip of use.When frame and complete machine become one, must dismantle frame at the cubing timing signal, very inconvenient.
Summary of the invention
The cycloidal-pin wheel speed reduction unit is squeezed installation damage easily in the above-mentioned side force equipment in order to overcome, the significant deficiency that the actuating unit installation, maintenance is extremely inconvenient, and the present invention provides the scaling method of a kind of high-accuracy mechanical formula (no hydraulic pressure) force measuring machine and this cubing.The actuating unit that the stepper motor of this side force machine and cycloidal-pin wheel speed reduction unit are formed is placed on the support top of body outside, and the cycloidal-pin wheel speed reduction unit is by design general knowledge normal mounting, and the unimpeded equipment of lubricant passage way is not fragile; The equipment installation, maintenance is extremely convenient.Use whole fast-assembling frame can make things convenient for the staking-out work of side force machine.
The technical solution adopted for the present invention to solve the technical problems is:
High-accuracy mechanical formula force measuring machine; Mainly by body, frame, LOAD CELLS group, actuating unit, pressing mechanism, compression displacement increase times mechanism and the operation instrument form: this machine not is made up of base and bearing platform, and the LOAD CELLS group is placed between base and the bearing platform; Between four column frames and bearing platform table top, the compression displacement of being made up of the disk spring group increases a times mechanism; The staking-out work of force measuring machine for ease, above four column frames of bearing platform table top and compression displacement increase a times mechanism and form whole fast-assembling frame; Actuating unit is made up of stepper motor and cycloidal-pin wheel speed reduction unit and is fixed on above the body base; Pressing mechanism is made up of pressurization screw rod and nut, and receives force direction with the force transferring lever change; The disk spring that increases in times mechanism in the displacement of pressure lower compression shrinks, and makes the displacement of fast-assembling frame big than the tens of multiplications of sensor distortion itself, helps measuring accuracy is carried out accurate automatic indexing, and compression displacement increases a times mechanism and also dwindles greatly.
The scaling method of high-accuracy mechanical formula force measuring machine of the present invention is:
Four column frames and compression displacement are increased the whole fast-assembling frame removal that times mechanism forms,, the special use yard frame of dispelling is installed on the bearing platform table top when bearing platform table top loaded area hour.On yard frame of dispelling, can demarcate as demarcating the normal loading and unloading of the ordinary electronic weighing apparatus sign indicating number of dispelling.
Good effect of the present invention is:
After pressing mechanism used the force transferring lever change to receive force direction, the cycloidal-pin wheel speed reduction unit was by design general knowledge normal mounting, and the unimpeded equipment of lubricant passage way is not fragile; The actuating unit that controllable motor and cycloidal-pin wheel speed reduction unit are formed is placed on the body outside; Installation, maintenance is extremely convenient: because the installation of force transferring lever makes output torque and the reduction gear ratio of required cycloidal-pin wheel speed reduction unit be merely intrinsic 1/5 simultaneously, stepper motor of selecting for use and cycloidal-pin wheel speed reduction unit volume-diminished are 2/5 of former patent; The installation of force transferring lever has also reduced the required ratio of compression of standard ditch stroke; Use disk spring this moment; When making compression displacement increase times mechanism's volume to be kept to the common stage clip of former use 1/16, measuring accuracy is carried out accurate automatic indexing number can reach 6.4 * 10 easily
5
Because four column frames 5 and compression displacement are increased the whole fast-assembling frame that times mechanism forms, the calibrating device required time is shortened greatly, also improved the bearing accuracy when repeating frame is installed.
The present invention greatly reduces the volume and weight of force measuring machine, has improved the precision of force measuring machine, has reduced cost.
Description of drawings
Accompanying drawing is embodiments of the invention:
Fig. 1, high tip degree mechanical type side force and must see figure.
Fig. 2, high-accuracy mechanical formula force measuring machine structural representation.
Among the figure: 1, base, 2, the LOAD CELLS group, 3, bearing platform, 4, the disk spring group, 5, the frame short beam; 6, auxiliary black iron, 7, lower clamp, 8, four column frames, 9, go up anchor clamps, 10, handle; 11, frame crossbeam, 12, the adjustment screw rod, 13, the operation instrument, 14, stepper motor; 15, cycloidal-pin wheel speed reduction unit, 16, nut, 17, the pressurization screw rod, 18, force transferring lever.
Embodiment
Below in conjunction with accompanying drawing the present invention is once described:
High-accuracy mechanical formula side force machine increases times mechanism by body, frame, LOAD CELLS group 2, actuating unit, pressing mechanism, compression displacement and operation instrument 13 is formed.Body is made up of base 1 and bearing platform 3, and the sensor groups 2 of four LOAD CELLS compositions is placed between base l and the bearing platform 3; Four column frames 8 are on bearing platform 3 table tops; Between four column frames 8 and bearing platform 3 table tops; The compression displacement of being made up of four disk spring groups 4 increases a times mechanism: be equipped with on the four column housiung separators 11 by adjustment screw rod 12, handle 10, on the clamping device formed of anchor clamps 9; Can be by testee adjusted size relevant position, this clamping device also can be in the hole of frame crossbeam n be done 360 ° of revolutions around the appliance special for detecting axle center; The staking-out work of force measuring machine for ease, bearing platform 3 are closed the above four column frames 8 of face and compression displacement and are increased a times mechanism and form whole fast-assembling frame; Actuating unit is made up of stepper motor 14 and cycloidal-pin wheel speed reduction unit 15, is installed in the top of base 1; Pressing mechanism is made up of with nut 16 pressurization screw rod 17, and receives force direction with force transferring lever 18 changes; Lower clamp 7 is coupled to each other with power transmission lever 18; Be used for the clamping test product: when inspection side draw sensor or electronics hang when claiming; Tested part is installed between the lower clamp 7 of last anchor clamps 9 and lever of frame, and auxiliary black iron 6 is placed on the short fine strain of millet 5 in four column frames, 8 both sides, when the inspection side pressure sensor; Place testee with auxiliary black iron 6, with special pressing plate pressure transducer is pressurizeed again.In the testing process; The disk spring group 4 that compression displacement increases in times mechanism is shunk under pressure; Making 8 displacements of four column frames big, help measuring accuracy is carried out accurate automatic indexing than the tens of multiplications of sensor distortion itself. the measuring accuracy value that embodiment very easily reaches is 640,000/.
The scaling method of high-accuracy mechanical formula force measuring machine of the present invention is:
Four column frames 8 and compression displacement are increased the whole fast-assembling frame removal that times mechanism forms,, the special use yard frame of dispelling is installed on the bearing platform table top when bearing platform table top loaded area hour.On yard frame of dispelling, can demarcate with reference to the scaling method that Shen 99 127549.7 is narrated as demarcating the normal loading and unloading of the ordinary electronic weighing apparatus sign indicating number of dispelling.
Claims (2)
1. high-accuracy mechanical formula side force machine; Mainly by body, frame, LOAD CELLS group, actuating unit, pressing mechanism, compression displacement increase times mechanism and the operation instrument form; It is characterized in that: actuating unit is made up of stepper motor and cycloidal-pin wheel speed reduction unit and is fixed on above the body base; Pressing mechanism is made up of pressurization screw rod and nut, and receives force direction with the force transferring lever change.
2. like the described high-accuracy mechanical formula of claim 1 force measuring machine, it is characterized in that: the bearing platform table top increases a times mechanism with upper spider and compression displacement and forms whole fast-assembling frame; The spring that compression displacement increases in times mechanism is that dish-shaped bullet is yellow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105542130A CN102478440A (en) | 2010-11-23 | 2010-11-23 | Novel mechanical force measuring machine and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105542130A CN102478440A (en) | 2010-11-23 | 2010-11-23 | Novel mechanical force measuring machine and calibration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478440A true CN102478440A (en) | 2012-05-30 |
Family
ID=46091152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105542130A Pending CN102478440A (en) | 2010-11-23 | 2010-11-23 | Novel mechanical force measuring machine and calibration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478440A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542979A (en) * | 2013-11-05 | 2014-01-29 | 上海西派埃自动化仪表工程有限责任公司 | Portable calibration device for parking braking performance tester |
| CN110806285A (en) * | 2019-10-22 | 2020-02-18 | 天津大学 | Traceable pN magnitude force value calibration device and method |
| CN111578892A (en) * | 2020-04-13 | 2020-08-25 | 湖南省计量检测研究院 | Strain gauge calibration device and method based on hydraulic element driving |
-
2010
- 2010-11-23 CN CN2010105542130A patent/CN102478440A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542979A (en) * | 2013-11-05 | 2014-01-29 | 上海西派埃自动化仪表工程有限责任公司 | Portable calibration device for parking braking performance tester |
| CN103542979B (en) * | 2013-11-05 | 2015-08-12 | 上海西派埃自动化仪表工程有限责任公司 | Portable performance of parking brake tester caliberating device |
| CN110806285A (en) * | 2019-10-22 | 2020-02-18 | 天津大学 | Traceable pN magnitude force value calibration device and method |
| CN110806285B (en) * | 2019-10-22 | 2021-04-02 | 天津大学 | Traceable pN magnitude force value calibration device and method |
| CN111578892A (en) * | 2020-04-13 | 2020-08-25 | 湖南省计量检测研究院 | Strain gauge calibration device and method based on hydraulic element driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9366610B2 (en) | Portable digital display hardness tester | |
| CN105588718B (en) | Machine tool chief axis combination property detection/monitoring test system and method | |
| CN201110822Y (en) | Self-balance multifunctional structure static loaded experiment loading unit | |
| CN102252804A (en) | Multi-functional torque calibration device | |
| CN103954262A (en) | Device for measuring radial deformation of cylindrical test piece | |
| CN103048136A (en) | High and low temperature environment service life testing machine for joint bearing | |
| CN100501359C (en) | Loading test bench of straight stroke electric actuating mechanism | |
| CN102539238A (en) | Precision-grade material tension and compression stiffness tester | |
| CN102967506A (en) | Middle-sized rock servo control true triaxial test device | |
| CN203949656U (en) | A kind of cylinder specimen radial deformation measurement mechanism | |
| CN203024853U (en) | Pressure preloading device of weighing load cell | |
| CN205015236U (en) | Compound load normal position nanometer indentation testing arrangement of drawing - bending | |
| CN106644329B (en) | 120MN bridge support testing machine for high-precision dynamic measurement | |
| CN205826430U (en) | A kind of material pressure testing machine | |
| CN102478440A (en) | Novel mechanical force measuring machine and calibration method | |
| CN103411789A (en) | Simple loading and testing device for dynamic characteristics of actuator | |
| CN207850594U (en) | Steel chord type anchor ergometer calibrating installation | |
| CN100476396C (en) | Pressing lever steady experimental device for electronic universal testing machine | |
| CN101413782A (en) | Double-shaft radial extensometer under high hydraulic environment | |
| CN202420973U (en) | Tension and compression stiffness testing machine for precise materials | |
| CN212340125U (en) | Thickness gauge capable of measuring thickness values of automobile parts under different pressures | |
| CN212391340U (en) | Portable belleville instrument | |
| CN110672436B (en) | Compression-shear testing machine | |
| CN117451507A (en) | Rubber seal compressive property check out test set | |
| CN1458504A (en) | High accuracy mechanical dynamo-meter and calibrating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |