CN109341837A - A kind of force measuring method and portable hydraulic device for measuring force for the calibrating of track weighing unit - Google Patents
A kind of force measuring method and portable hydraulic device for measuring force for the calibrating of track weighing unit Download PDFInfo
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- CN109341837A CN109341837A CN201811313435.6A CN201811313435A CN109341837A CN 109341837 A CN109341837 A CN 109341837A CN 201811313435 A CN201811313435 A CN 201811313435A CN 109341837 A CN109341837 A CN 109341837A
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- weighing unit
- weighing
- buckle
- calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- General Physics & Mathematics (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of force measuring methods and portable hydraulic device for measuring force for the calibrating of track weighing unit, belong to measurement verification technical field, the force measuring method step of track weighing unit calibrating are as follows: 1) load using loading unit to weighing unit to be checked；2) by normal pressure data transmission to Master Control Unit；3) determine that all weighing unit calibratings in weighing unit two sides finish；4) cumulative errors of weighing unit are calculated.Portable hydraulic device for measuring force, feature include buckle auxiliary unit, loading unit, pressure sensor, display screen and data transmission unit and master control machine.It is an object of the invention to solve the problems, such as existing device for measuring force and method verification process, time-consuming, calibrating is at high cost, safety is poor.
Description
Technical field
The present invention relates to measurement verification technical fields, and in particular to one kind is used for track weighing unit (weighing rolling stock
Platform weighing unit, city railway vehicle weighing unit weighing unit) force measuring method and Portable force measuring device.
Background technique
Locomotive weighing table, city railway vehicle weighing unit (hereinafter referred to as: weighing unit) are for measuring various kinds of vehicles
Vehicle, EMU, the wheel weight of city railway vehicle, axis weight and gross weight, to determine its weight and weight distribution in static state
Railway specially-used measuring instrument.Rolling stock, EMU, the unbalanced of city railway vehicle wheel weight easily cause in rolling stock operation
Phenomena such as flange wear, influences traffic safety.It is required to wheel again etc. before rolling stock and EMU factory and after maintenance
Index measures.When adjusting left and right wheels load-carrying balance, it is also desirable to instruct adjusting pad according to the left and right wheels load-carrying data measured
The differentia influence of piece thickness, spacer thickness is laid particular stress on to wheel and centre-of gravity shift.Weighing unit is generally by 8~24 electronic platform scales
Combine and be designed according to the technical requirements and handling characteristics of rolling stock, be typically mounted at rolling stock manufactory,
In locomotive inspection and repair factory, MTU depot or urban track traffic enterprise car inspection and repair library, for measuring locomotive vehicle release front-wheel weight, axis
Weight and complete vehicle weight.The design of weighing unit will meet TB/T2782-1997 " rolling stock's weighing unit technical conditions ", TB/
T1740-1997 " rolling stock's weight measurement method " and JJG (railway) 117-2015 " static locomotive weighing table "
The requirement of vertification regulation.
Weighing unit before being put into use or after maintenance must examine and determine each weighing unit of composition, come into operation
After be also required to subsequent calibrating and in-use inspection.The measurement standard of existing calibrating weighing unit weighing unit and corollary equipment master
Have: (1~15) t counterweight, level(l)ing plate trolley, crane (or truck-mounted crane), for heap amplification counterweight support.
Existing calibration method are as follows: the counterweight (general 15t) that constant weight is carried using flat bogie is placed on weighing unit one
Near end, the support for being used for heap amplification counterweight is first installed to any one weighing unit to be checked with crane or truck-mounted crane, until
Determining 5 equally distributed calibrating points less, each calibrating point load counterweight 3 times.The carrying and load of counterweight unload and are used for heap
The carrying for amplifying the support of counterweight requires crane or truck-mounted crane cooperation is completed, and operation intensity is big, and field demand personnel are more, inspection
Fixed number is according to manual record is needed, and time-consuming for entire verification process, calibrating is at high cost, safety is poor.
Due to dynamometer not convenient and practical in the market, main standard device only uses (1~15) t counterweight, can only be by
Weight nominal value spot measurement is loaded, cannot achieve continuous load measurement, and the carrying of counterweight, load operations intensity are big, behaviour
It is poor to make safety, causes calibrating efficiency low.
Summary of the invention
In order to overcome technical problem present in the calibrating of existing weighing unit, the present invention provides a kind of conveniently moving,
Calibrating efficiency height, pressure class of accuracy can be precisely to 0.1 grade of the portable calibratings for weighing unit track weighing unit
Method.
Meanwhile it is portable the present invention also provides can be realized examining and determine for weighing unit weighing unit for above-mentioned calibration method
The hydraulic device for measuring force of formula.
The technical scheme adopted by the invention is that:
A kind of force measuring method for the calibrating of track weighing unit comprising following steps:
(1) mobile open frame is elapsed to the calibrating position of weighing unit 10 to be checked, locking pinch plate auxiliary unit makes its button
On two siding tracks 13 of weighing unit 10, weighing unit 10 to be checked is loaded using loading unit；
(2) pressure that detection loading unit loads weighing unit 10 to be checked is sent to as normal pressure data
Master Control Unit, Master Control Unit receive the real data of the weighing unit to be checked 10 shown after data with the weighing instrument of weighing unit into
Row comparison, determines the gauging error of the weighing unit 10 to be checked, completes the calibrating of the weighing unit 10, and determines that calibrating misses
Difference；
(3) after the completion of a weighing unit 10 is examined and determine, buckle auxiliary unit is unclamped, disengages it with track 13, it is mobile
It to next weighing unit 10 to be checked, repeats step (1) and (2), until all weighing units 10 in two sides of weighing unit have all been examined and determine
Finish；
(4) after the gauging error of to be weighed all weighing units 10 determines, by the gauging error of each weighing unit 10
It is accumulative, the cumulative errors of weighing unit can be calculated.
It further limits, for the gauging error precisely to 0.1 grade, verification result is more accurate and can be realized continuous survey
It is fixed.
A kind of portable hydraulic device for measuring force for the calibrating of weighing unit weighing unit can be realized above-mentioned calibration method,
It includes mobile open frame and the buckle auxiliary unit being mounted thereon, loading unit, pressure sensor 12, display screen and number
According to transmission unit 4 and master control machine；
Mobile open frame includes crossbeam 3 and curb girder 2, shifting roller 1；Curb girder 2 is located at the both ends of crossbeam 3；Shifting roller 1 is set
It sets in the bottom of curb girder 2；
Buckle auxiliary unit is arranged in below the crossbeam 3 of mobile open frame and is located at the inside of curb girder 2, adds for cooperating
Carrier unit plays the role of support and counter-force in load；
Loading unit is arranged on the crossbeam 3 of mobile open frame, for weighing unit 10 to be checked load, off-load；
The loading end of loading unit is arranged in pressure sensor 12, passes through data line and display screen and data transmission unit 4
Connection, is sent to display screen and data transmission unit 4 for detecting the on-load pressure of loading unit, and by pressure data；
Display screen and data transmission unit 4 are simultaneously communicated by data line or wireless transmission method and master control machine；Master control machine hair
It send loading command to carry out load or off-load to loading unit, and receives the standard verification that display screen and data transmission unit 4 transmit
The real data of pressure data, the weighing unit to be checked 10 shown with the weighing instrument of weighing unit compares, and determines that this is to be checked
The gauging error of weighing unit 10.
It further limits, the buckle auxiliary unit includes buckle mounting rack 6, buckle 9, rotary pin shaft 7 and positioning pin
Axis 8；The buckle mounting rack 6 is arranged on the crossbeam 3 of mobile open frame and can move along crossbeam 3；The setting of buckle 9 is being detained
The lower end of board mounting stand 6 is simultaneously connected by rotary pin shaft 7, and can be rotated along rotary pin shaft 7, and the setting of alignment pin 8 exists
Buckle 9 is fixed on buckle mounting rack 6 by the upper end of buckle 9, is held tightly track by buckle auxiliary unit, when preventing load
Stress dispersion, and load support is provided to mobile open frame.
Further limit, the crossbeam 3 of the mobile open frame uses I-shaped structure, the top of buckle mounting rack 6 be with
The T-slot structure of 3 physical fit of crossbeam guarantees that buckle mounting rack 6 can move on the crossbeam 3 of mobile open frame, applicable
It is examined and determine in the weighing unit of different length specification.
It further limits, the buckle 9 includes the first buckle and the second buckle, the upper end point of the first buckle and the second buckle
It by the way that rotary pin shaft 7 not be connect with buckle mounting rack 6, lower end is symmetrically stuck in the track waist of weighing unit 10 and holds track tightly.
It further limits, the loading unit includes hydraulic cylinder 5 and briquetting 11, and the hydraulic cylinder 5 is arranged in mobile machine
3 middle part of crossbeam of frame is simultaneously connect with hydraulic workstation by hydraulic oil pipe, is logical by conducting wire or wireless transmission method and master control machine
News, the briquetting 11 is fixed on the weighing unit to be checked 10 of weighing unit, and the telescopic rod end face with hydraulic cylinder 5, is protected
It is vertical with load-bearing rail level to demonstrate,prove stress axis.
Provided by the present invention for weighing unit weighing unit portable calibration method compared with prior art, mainly have with
Under several advantages:
(1) present invention is that device for measuring force is moved to another weighing after examining and determine a weighing unit 10 of weighing unit
Unit 10 is examined and determine, and each weighing unit 10 is individually to examine and determine, and error correction individually can be targetedly corrected, and is mentioned
The accuracy of high weighing unit.
(2) present invention can use loading unit gradually continuous pressure, precisely generate pressure, and read data simultaneously automatically
Record, reduces human error, and class of accuracy can achieve 0.1 grade, overcome present in weight detecting method in the prior art
The problem of error is big, loaded value limited amount.
(3) device for measuring force of the invention is easy to remove, handling are simple, easy to operate, flexibly light, overcomes the prior art
In weight detecting method the problem of needing to lift counterweight and difficult, greatly improve the calibrating efficiency of weighing unit.
(4) present invention is by that can examine and determine the weighing unit of different length, maximum calibrating weighing along cross beam movement mounting rack
Element length 1752mm.
(5) present invention can examine and determine the title of different size rail by the specification of selection shifting roller 1, buckle 9, briquetting 11
Weight unit, the calibrating scope of application are wider.
Detailed description of the invention
Fig. 1 is device for measuring force structural schematic diagram of the invention.
Fig. 2 and 3 is primary structure cross-sectional view of the invention.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the Portable force measuring device for the calibrating of track weighing unit of the invention, including move
Dynamic formula rack and the buckle auxiliary unit being mounted thereon, loading unit, pressure sensor 12, display screen and data transmission are single
Member 4 and master control machine, in which:
Mobile open frame, including crossbeam 3 and curb girder 2, shifting roller 1；Curb girder 2 is located at the both ends of crossbeam 3；Shifting roller 1
It is mounted on the bottom of curb girder 2, shifting roller 1 is placed on track 13 when calibrating, facilitates single unit system mobile.
Buckle auxiliary unit is arranged in below the crossbeam 3 of mobile open frame and is located at the inside of curb girder 2, adds for cooperating
Carrier unit plays the role of support and counter-force in load；The buckle auxiliary unit includes buckle mounting rack 6, buckle 9, rotary pin shaft
7 and alignment pin 8；Buckle mounting rack 6 is mounted on the crossbeam 3 of mobile open frame and can move along crossbeam 3；Buckle 9 is arranged
Buckle mounting rack 6 lower end and connected by rotary pin shaft 7, and can rotate along rotary pin shaft 7, alignment pin 8, which is arranged, to exist
Buckle 9 is fixed on buckle mounting rack 6 by the upper end of buckle 9.
Loading unit is arranged on the crossbeam 3 of mobile open frame, for weighing unit 10 to be checked load, off-load；It can be with
Load or off-load are implemented using the hydraulic cylinder 5 connecting with hydraulic workstation, applying pressure class of accuracy can be as accurate as 0.1
Grade.It can be evenly distributed to guarantee that hydraulic cylinder 5 is applied to the pressure of weighing unit 10, in the underface of 5 telescopic rod of hydraulic cylinder
10 upper surface middle part of weighing unit install a matched briquetting 11, briquetting 11 is an inverted U notch, be inverted
On the track of weighing unit 10, for the load of balanced hydraulic cylinder 5, loading force is avoided to be unevenly distributed.
Pressure sensor 12 is mounted on the loading end i.e. 5 telescopic rod end of hydraulic cylinder of loading unit, passes through conducting wire and display
Screen and data transmission unit 4 connect, and are sent to display screen and number for detecting the on-load pressure of loading unit, and by pressure data
According to transmission unit 4；
Display screen and data transmission unit 4 are connect with loading unit, pressure sensor 12 respectively, and by data line or
Wireless communication mode and master control machine communicate, and master control machine sends loading command and carries out load or off-load to loading unit, and receives pressure
The standard verification pressure data that force snesor 12 transmits, the reality of the weighing unit to be checked 10 shown with the weighing instrument of weighing unit
Data compare, and determine that the gauging error of the weighing unit 10 to be checked, master control machine realize data acquisition, analysis, processing, and will
Processing result can intuitively show pressure, displacement data on display screen and data transmission unit 4, and draw curve storage number
According to.
Track weighing unit is realized with the above-mentioned portable hydraulic device for measuring force for the calibrating of weighing unit weighing unit
Calibrating, specific method are realized by following steps:
(1) mobile open frame is elapsed to the calibrating position of weighing unit 10 to be checked, locking pinch plate auxiliary unit makes its button
On two siding tracks 13 of weighing unit 10, weighing unit 10 to be checked is loaded using loading unit；
(2) pressure that detection loading unit loads weighing unit 10 to be checked is sent to as normal pressure data
Master Control Unit, Master Control Unit receive the real data of the weighing unit to be checked 10 shown after data with the weighing instrument of weighing unit into
Row comparison, determines the gauging error of the weighing unit 10 to be checked, completes the calibrating of the weighing unit 10；
Specific calculation are as follows:
In formula: FiThe calibrating pressure indicating value that 10 instrument of --- --- weighing unit weighing unit is shown, unit kg；
--- --- calibrating point normal pressure average value, unit kg；
The q------ weighing unit error of indication, unit kg；
After the completion of (3) weighing units 10 are examined and determine, buckle auxiliary unit is unclamped, it is disengaged with track 13, is moved to
Next weighing unit to be checked 10 repeats step (1) and (2), until all weighing units 10 in two sides of weighing unit are all examined and determine and finished；
(4) after the gauging error of to be weighed all weighing units 10 determines, by the gauging error of each weighing unit 10
It is accumulative, the cumulative errors of weighing unit can be calculated；
Weighing unit cumulative errors are calculated by formula (2):
In formula: δEntirely--- --- weighing unit error, unit kg；
The sum of k------ weighing unit, k=6 in the present embodiment；
qi--- --- i-th weighing unit error, unit kg；
I------ is 1,2,3 ... k.
Embodiment 1
The portable hydraulic device for measuring force for the calibrating of weighing unit weighing unit of the present embodiment, is suitable for by 50kg/m type
Weighing unit 10 of the rail as weighing-rail.The crossbeam 3 of the mobile open frame of the present embodiment uses i-beam structure, corresponding button
Using the T-slot structure with 3 physical fit of crossbeam, buckle 9 includes being symmetrically distributed in weighing unit 10 at the top of board mounting stand 6
The upper end of first buckle and the second buckle in outside in track, the first buckle and the second buckle passes through rotary pin shaft 7 and button respectively
Board mounting stand 6 connects, and can rotate along rotary pin shaft 7 to the two sides of track, also installs positioning pin in the lower section of rotary pin shaft 7
Axis 8 cooperates two-point locating that buckle 9 is fixed by alignment pin 8 and rotary pin shaft 7.The lower end of first buckle and the second buckle
The track waist that bending is symmetrically stuck in weighing unit 10 holds track tightly, is locked at it on track 13.The briquetting of the present embodiment
11 use the specification of 50kg/m shaped steel rail, and pressure sensor 12 is connect by data line with display screen and data transmission unit 4, lead to
It crosses display screen and pressure data is shown and is transferred to master control machine by data transmission unit 4.Hydraulic cylinder 5 is fixed on mobile machine
3 middle part of crossbeam of frame is simultaneously connect by hydraulic oil pipe with hydraulic workstation, and hydraulic cylinder 5 is also connect by conducting wire with master control machine, is connect
Receive the control command of master control machine.
The weighing unit of the present embodiment is provided with 6 weighing units 10 altogether, is examined and determine with above-mentioned for weighing unit weighing unit
Portable hydraulic device for measuring force as standard, which is examined and determine, specific method is realized by following steps:
(1) mobile open frame is elapsed to the calibrating position for examining weighing unit 10 to first, with alignment pin 8 by buckle
9 the first buckle and the second buckle are fixed, and are locked it by the track obvolvent for examining weighing unit 10, are slowly added using hydraulic cylinder
It carries, makes mobile open frame, 9 pretension of buckle, it is ensured that stress point is stablized, and stress axis is vertical with load-bearing rail level, zeroing；
(2) hydraulic cylinder gradually loads, and pressure sensor 12 acquires loading force, until the stress of calibrating point reaches maximum value holding
After stabilization, read data, as normal pressure data, be sent to Master Control Unit, Master Control Unit receive after data with weighing
The real data for the weighing unit to be checked 10 that the weighing instrument of platform is shown compares, and determines the calibrating of the weighing unit 10 to be checked
Error repeats 3 measurements, completes the calibrating of the weighing unit 10.
After the completion of (3) weighing units 10 are examined and determine, buckle auxiliary unit is unclamped, it is disengaged with track 13, is moved to
Next weighing unit to be checked 10 repeats step (1) and (2), until all weighing units 10 in two sides of weighing unit are all examined and determine and finished；
(4) after the gauging error of to be weighed all weighing units 10 determines, by the gauging error of each weighing unit 10
It is accumulative, the cumulative errors of weighing unit can be calculated；
Embodiment 2
The portable hydraulic device for measuring force for the calibrating of weighing unit weighing unit of the present embodiment is suitable for 60kg/m fashioned iron
The track 13 of rail.The crossbeam 3 of the mobile open frame of the present embodiment uses i-beam structure, the top of corresponding buckle mounting rack 6
Using the T-slot structure with 3 physical fit of crossbeam, the top of buckle 9 passes through 2 rotary pin shafts 7 being set side by side and is fixed on button
On board mounting stand 6.The lower part of buckle 9 holds track 13 tightly, can make its locking by being disposed in parallel in 2 fastenings of alignment pin 8
On track 13.The briquetting 11 of the present embodiment uses the specification of 60kg/m shaped steel rail, and hydraulic cylinder 5 is fixed on the cross of mobile open frame
3 middle part of beam is simultaneously connect by hydraulic oil pipe with hydraulic workstation, and hydraulic cylinder 5 is communicated by wireless transmission method and master control machine, is connect
Receive the control command of master control machine.
The present invention is adaptable to other model weighing-rails by changing the connector size cooperated with rail, so as to apply
In the calibrating of various model weighing unit weighing units, it is not limited only to the above embodiments.
Claims (7)
1. a kind of force measuring method for the calibrating of track weighing unit, it is characterised in that the following steps are included:
(1) mobile open frame is elapsed to the calibrating position of weighing unit to be checked (10), locking pinch plate auxiliary unit is buckled in it
On two siding tracks (13) of weighing unit (10), weighing unit to be checked (10) is loaded using loading unit；
(2) pressure that detection loading unit loads weighing unit to be checked (10) is sent to total as normal pressure data
Control unit, Master Control Unit receive the real data of the weighing unit to be checked (10) shown after data with the weighing instrument of weighing unit into
Row comparison, determines the gauging error of the weighing unit (10) to be checked, completes the calibrating of the weighing unit (10), and determine to examine and determine
Error；
(3) after the completion of a weighing unit (10) is examined and determine, buckle auxiliary unit is unclamped, disengages it with track (13), it is mobile
It to next weighing unit (10) to be checked, repeats step (1) and (2), until all weighing units in two sides (10) of weighing unit are all examined
Surely it finishes；
(4) after the gauging error of to be weighed all weighing units (10) determines, by the gauging error of each weighing unit (10)
It is accumulative, the cumulative errors of weighing unit can be calculated.
2. the force measuring method according to claim 1 for the calibrating of track weighing unit, which is characterized in that the calibrating misses
Difference is precisely to 0.1 grade.
3. a kind of portable hydraulic device for measuring force for the calibrating of track weighing unit that can be realized above-mentioned calibration method, special
Sign is: including mobile open frame and the buckle auxiliary unit being mounted thereon, loading unit, pressure sensor (12), showing
Display screen and data transmission unit (4) and master control machine；
Mobile open frame includes crossbeam (3) and curb girder (2), shifting roller (1)；Curb girder (2) is located at the both ends of crossbeam (3)；It is mobile
Idler wheel (1) is arranged in the bottom of curb girder (2)；
Buckle auxiliary unit is arranged in below the crossbeam (3) of movement open frame and is located at the inside of curb girder (2), adds for cooperating
Carrier unit plays the role of support and counter-force in load；
Loading unit is arranged on the crossbeam (3) of mobile open frame, for weighing unit to be checked (10) load, off-load；
Pressure sensor (12), is arranged in the loading end of loading unit, passes through data line and display screen and data transmission unit (4)
Connection, is sent to display screen and data transmission unit (4) for detecting the on-load pressure of loading unit, and by pressure data；
Display screen and data transmission unit (4) are simultaneously communicated by data line or wireless transmission method and master control machine；Master control machine is sent
Loading command carries out load or off-load to loading unit, and receives the standard verification of display screen and data transmission unit (4) transmission
The real data of pressure data, the weighing unit to be checked (10) shown with the weighing instrument of weighing unit compares, and determining should be to
Examine the gauging error of weighing unit (10).
4. the portable hydraulic device for measuring force according to claim 3 for the calibrating of track weighing unit, it is characterised in that:
The buckle auxiliary unit includes buckle mounting rack (6), buckle (9), rotary pin shaft (7) and alignment pin (8)；The buckle
Mounting rack (6) is arranged on the crossbeam (3) of mobile open frame and can be mobile along crossbeam (3)；Buckle (9) setting is pacified in buckle
It shelves the lower end of (6) and is connected by rotary pin shaft (7), and can be rotated along rotary pin shaft (7), the alignment pin (8) sets
It sets and buckle (9) is fixed on buckle mounting rack (6) in the upper end of buckle (9).
5. the portable hydraulic device for measuring force according to claim 4 for the calibrating of track weighing unit, it is characterised in that:
The crossbeam (3) of the mobile open frame uses I-shaped structure, is and crossbeam (3) physical fit at the top of buckle mounting rack (6)
T-slot structure.
6. the portable hydraulic device for measuring force according to claim 4 for the calibrating of track weighing unit, it is characterised in that:
The buckle (9) includes the first buckle and the second buckle, and the upper end of the first buckle and the second buckle passes through rotary pin shaft (7) respectively
It is connect with buckle mounting rack (6), lower end is symmetrically stuck in the track waist of weighing unit (10) and holds track tightly.
7. the portable hydraulic device for measuring force according to claim 3 for the calibrating of track weighing unit, it is characterised in that:
The loading unit includes hydraulic cylinder (5) and briquetting (11), and the hydraulic cylinder (5) is arranged in the crossbeam (3) of mobile open frame
Portion is simultaneously connect with hydraulic workstation by hydraulic oil pipe, is communicated by conducting wire or wireless transmission method and master control machine, the briquetting
(11) it is fixed on the weighing unit to be checked (10) of weighing unit, and the telescopic rod end face with hydraulic cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313435.6A CN109341837B (en) | 2018-11-06 | 2018-11-06 | Force measuring method for rail weighing unit verification and portable hydraulic force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313435.6A CN109341837B (en) | 2018-11-06 | 2018-11-06 | Force measuring method for rail weighing unit verification and portable hydraulic force measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109341837A true CN109341837A (en) | 2019-02-15 |
| CN109341837B CN109341837B (en) | 2021-01-05 |
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ID=65313667
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811313435.6A Active CN109341837B (en) | 2018-11-06 | 2018-11-06 | Force measuring method for rail weighing unit verification and portable hydraulic force measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109341837B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781708A (en) * | 2020-12-30 | 2021-05-11 | 中铁轨道交通装备有限公司 | Calibration equipment for rail weighbridge |
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| CN103033250A (en) * | 2012-12-14 | 2013-04-10 | 中国铁道科学研究院 | Unbalance loading standard calibrating device of weigh bridge test car |
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| CN206832353U (en) * | 2017-04-27 | 2018-01-02 | 重庆昌冉科技有限公司 | A kind of broken rail track scale inspection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2844866Y (en) * | 2005-10-11 | 2006-12-06 | 济南钢铁股份有限公司 | Calibrating system for super large railway scales |
| CN102564559A (en) * | 2012-03-07 | 2012-07-11 | 中国计量学院 | Hydraulic dynamic calibrating device for verifying rail weigher |
| CN102661778A (en) * | 2012-05-31 | 2012-09-12 | 济南金钟电子衡器股份有限公司 | Vehicle weighing platform inspection device |
| CN103033250A (en) * | 2012-12-14 | 2013-04-10 | 中国铁道科学研究院 | Unbalance loading standard calibrating device of weigh bridge test car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781708A (en) * | 2020-12-30 | 2021-05-11 | 中铁轨道交通装备有限公司 | Calibration equipment for rail weighbridge |
| CN112781708B (en) * | 2020-12-30 | 2022-08-26 | 中铁轨道交通装备有限公司 | Calibration equipment for rail weighbridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109341837B (en) | 2021-01-05 |
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