CN110108344A - One kind is gathered materials measuring belt scale caliberating device and method - Google Patents
One kind is gathered materials measuring belt scale caliberating device and method Download PDFInfo
- Publication number
- CN110108344A CN110108344A CN201910457659.2A CN201910457659A CN110108344A CN 110108344 A CN110108344 A CN 110108344A CN 201910457659 A CN201910457659 A CN 201910457659A CN 110108344 A CN110108344 A CN 110108344A
- Authority
- CN
- China
- Prior art keywords
- counterweight
- position sensor
- belt scale
- studs
- measuring belt
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005303 weighing Methods 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 12
- 238000011008 operational qualification Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims 2
- 230000008450 motivation Effects 0.000 claims 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000010426 asphalt Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
- G01G23/012—Testing or calibrating of weighing apparatus with load cells comprising in-build calibration weights
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention discloses one kind and gathers materials measuring belt scale caliberating device and method, and the support device of caliberating device is set to the top of counterweight component, and driving device is set in support device and connect with counterweight component, and driving device can drive counterweight component to move up and down；Counterweight mounting rack is connect with driving device, and the first counterweight and the second counterweight are mounted on counterweight mounting rack, and can freely up and down be moved relative to counterweight mounting rack, up and down movable distance of first counterweight less than the second counterweight on counterweight mounting rack；When counterweight mounting rack moves up, the first counterweight and the second counterweight can successively be promoted by counterweight mounting rack, and after being elevated, not contacted between the first counterweight and the second counterweight；When driving device driving counterweight mounting rack moves down, the second counterweight is placed in ground, and the first counterweight is placed on the first counterweight.The present invention demarcates measuring belt scale of gathering materials without material object, can quickly, accurate, labour-saving demarcates measuring belt scale of gathering materials.
Description
Technical field
Gather materials measuring belt scale caliberating device and side the present invention relates to asphalt mixing plant field more particularly to one kind
Method.
Background technique
Asphalt mixing plant is the special equipment that asphalt is produced in construction of the highway, mainly by ingredient of gathering materials
System, lifting system, vibrosieve system, weighs stirring system, dust pelletizing system and finished product bin storage at drying heating system
The composition such as system.Wherein, the cold burden storehouse feed proportioning system that gathers materials is made of feed bin, feed motor, feeding belt scale, conveyor belt etc..
Gather materials Aggregate Feeding Error and stability, has become an important indicator for measuring asphalt mixing plant technical advance.
In order to guarantee measuring accuracy, measuring belt scale of gathering materials before beginning to use and use process in, it is necessary to its into
Row gauging calibration.Scaling method is generally divided into materials calibration and simulated calibration.Materials calibration is a kind of by material (or the like
Material) it weighs on master scale, then unload the method in feed bin, demarcated through bin outlet by belt balance weighing.Material object mark
It is higher to determine accuracy, but workload is bigger, it is more to consume human and material resources.Simulated calibration is generally divided into chain code calibration and weights-hoist
Calibration.Chain code calibration is in a kind of every meter of Belt Length of simulation weighing belt through flowing through the scaling method of weight of material, by chain code mark
Determine device to be placed on static or movement weighing belt, carries out static (measuring belt scale does not rotate) or dynamic calibration (measuring belt
Scale rotation).Equipment needed for chain code is demarcated is big, at high cost, is limited sometimes by installation space, applicability is not strong；Weights-hoist is demarcated
A method of standard test weight is put into (or suspension) in demarcating on belted electronic balance.In engineer application, weights-hoist calibration
Method application is more universal.Currently, weights-hoist calibration mainly by manually being put, counterweight being taken to operate, there are operating process complexity, takes
Power is time-consuming, calibration low efficiency, the deficiencies of human error is big.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, one kind is provided and is gathered materials measuring belt scale caliberating device
And method, the present invention demarcate measuring belt scale of gathering materials without material object, can it is accurate, quickly, labour-saving is to gathering materials
Measuring belt scale is demarcated.
To achieve the goals above, the technical scheme adopted by the invention is that:
One kind is gathered materials measuring belt scale caliberating device, including support device, driving device and counterweight component, support device are set
It is placed in the top of counterweight component, driving device is set in support device, and driving device is connect with counterweight component, driving device energy
Enough driving counterweight components move up and down；
Counterweight component includes the first counterweight, the second counterweight and counterweight mounting rack, and counterweight mounting rack is connect with driving device, the
One counterweight and the second counterweight are mounted on counterweight mounting rack, above and below the first counterweight and the opposite counterweight mounting rack of the second counterweight energy
Mobile, up and down movable distance of first counterweight on counterweight mounting rack can less than upper and lower on counterweight mounting rack of the second counterweight
Moving distance；When counterweight mounting rack moves up, the first counterweight and the second counterweight can successively be promoted by counterweight mounting rack, and the
After one counterweight and the second counterweight are elevated, do not contacted between the first counterweight and the second counterweight；When driving device driving counterweight peace
It shelves when moving down, the second counterweight and the first counterweight can be sequentially placed in fixed platform.
Counterweight component include the first counterweight, the second counterweight and counterweight mounting rack, counterweight mounting rack include the first studs,
Second studs, first longitudinal direction connecting rod, second longitudinal direction connecting rod, beam column and transverse connecting rod, the middle part of beam column and driving
The output end of device connects, and the both ends of beam column are connected separately with first longitudinal direction connecting rod and second longitudinal direction connecting rod, the first double end
The both ends of stud and the both ends of the second studs are connect with first longitudinal direction connecting rod and second longitudinal direction connecting rod respectively, and first pair
Header stud is set to the top of the second studs；
Lateral through-hole is offered on first counterweight and the second counterweight, the first counterweight is sheathed on the first double end by through-hole
On stud, the second counterweight is sheathed on the second studs by through-hole；The through-hole that the first studs passes through on first counterweight
Diameter be not less than 2 times of the first studs nominal diameter；The through-hole passed through on second counterweight for the second studs it is straight
Diameter is not less than 2 times of the diameter of the through-hole passed through on the first counterweight for the first studs；
It is reserved between first longitudinal direction connecting rod and second longitudinal direction connecting rod and the first counterweight and between the second counterweight
There is gap.
The nominal diameter of first studs and the second studs is equal.
Axis connects between the middle part of beam column and the output end of driving device, and beam column axis is connect and is in vertical plane and freely turns
It is dynamic.
The cross for preventing the first counterweight and the second counterweight from rotating is connected in first longitudinal direction connecting rod and second longitudinal direction connecting rod
To connecting rod, gap is all had between transverse connecting rod and the first counterweight and between the second counterweight.
Further include display, first position sensor, second position sensor and controller, display, driving device,
First position sensor and second position sensor are connect with controller, and first position sensor and second position sensor are set
It is placed in the side of counterweight component, first position sensor and second position sensor are respectively used to the first counterweight of detection and the second weight
The location of code, controller can also be connect with the weighing sensor for measuring belt scale of gathering materials, and controller is used for according to weighing
The detection information control driving dress of the weighing information of sensor, the detection information of first position sensor and second position sensor
Driving counterweight component is set to move up and down.
Support device includes sunpender and plate, and the both ends of plate are symmetrically connected with sunpender, the upper end of sunpender can with gather materials
The gantry of measuring belt scale connects, and driving device is fixedly connected with plate.
Driving device includes motor and screw rod elevator, and the output shaft of motor and the input shaft of screw rod elevator connect
It connects, motor and screw rod elevator are fixedly mounted in support device, and the axis state in a vertical shape of screw rod elevator screw rod is simultaneously
Vertical with the output shaft of motor, direction of improvement and weighing sensor the weighing direction of screw rod elevator are in same vertical straight line
On, the lower end of screw rod elevator screw rod is connect with counterweight component.
One kind is gathered materials measuring belt scale scaling method, is carried out, is included the following steps: by above-mentioned caliberating device
Support device is connect by S1 with measuring belt scale of gathering materials, what support device connected in measuring belt scale of gathering materials
The underface at weighing sensor position；
S2, walks gathering materials above empty set material measuring belt scale, and measuring belt scale of gathering materials is shut down；
S3, driving device control counterweight component move down, and fall within the second counterweight on fixed platform, the first counterweight is fallen
In on the second counterweight, not in contact with not connect between the second counterweight and the second studs between the first counterweight and the first studs
Touching, carries out mark Z-operation to weighing sensor；
S4 is demarcated for the first time
Driving device driving counterweight mounting rack moves up and successively lifts the first counterweight and the second counterweight, metering of gathering materials
The weighing sensor of weighing belt measures the gross mass of the first counterweight and the second counterweight and to calculate the average value of gross mass
According to average valueCalculate the first calibration coefficient K ' of caliberating device；
S5, second of calibration
Driving device driving counterweight mounting rack moves down, and the first counterweight is made to be in the state that is elevated, and the second counterweight is placed
In on the platform of the fixation, between the second studs and the second counterweight not in contact with；Weighing sensor detects the first counterweight
Quality；The average value of the first counterweight (12) quality is sought according to detected value
According to average valueCalculate the second calibration coefficient K "；
S6 judges whether the operation of S2-S5 is qualified according to the first calibration coefficient K ' and the second calibration coefficient K "；
S7 " is gathered materials if judging the operational qualification of S2-S5 according to the first calibration coefficient K ' and the second calibration coefficient K
The calibration coefficient standard value K of measuring belt scale；
If judging, the operation of S2-S5 is unqualified, repeatedly S2~S6, until judging the operational qualification of S2-S5.
First calibration coefficientSecond calibration coefficientCalibration coefficient standard value K=
(K '+K ")/2 wherein, m1For the quality of the first counterweight (12), m2For the quality of the second counterweight (13).
According to the first calibration coefficient K ' and the second calibration coefficient K " judge S3 and S4 proving operation whether He Ge process
Are as follows:
If | (K '-K ")/K ' |≤λ, then it represents that the operational qualification of S2-S5；
If | (K '-K ")/K ' | > λ, then it represents that the operation of S2-S5 is unqualified；
Wherein λ is preset value.
λ is 0.5%.
In the S3, driving device control counterweight component is moved down, and second position sensor detects second counterweight and falls
In on fixed platform, first position sensor detects the first counterweight and falls on the second counterweight；
In S4, the quality m of the first counterweight is first inputted respectively to controller1And second counterweight quality m2；Controller control
Driving device driving counterweight mounting rack moves up and successively lifts the first counterweight and the second counterweight, until first position senses
Device and second position sensor detect that the first counterweight and the second counterweight are raised respectively, and controller, which controls driving device, to be stopped driving
Dynamic counterweight mounting rack；
After controller control driving device driving counterweight mounting rack moves up, controller is read according to prefixed time interval
The measured value of weighing sensor, and calculate the average value A of the gross mass of the first counterweight and the second counterweight and counted according to average value A
Calculate the first calibration coefficient K ' of caliberating device；
In S5, controller control driving device driving counterweight mounting rack is moved down, until first position sensor detects
It is elevated to the first counterweight, second position sensor detects that the second counterweight is placed on fixed platform and the second studs
Between the second counterweight not in contact with；
Controller, which controls driving device, to be stopped after driving counterweight mounting rack, and controller reads according to prefixed time interval and weighs
The measured value of sensor, and calculate the average value of the measured value of the second counterbalance massAnd according to average valueCalculate second
Calibration coefficient K "；
In S6, controller judges whether the operation of S2-S5 is qualified according to the first calibration coefficient K ' and the second calibration coefficient K "；
In S7, if judging the operational qualification of S2-S5, controller is according to the first calibration coefficient K ' and the second calibration coefficient K "
Obtain gathering materials measuring belt scale calibration coefficient standard value K and control display and show calibration coefficient standard value K.
The invention has the following advantages:
The driving device of the measuring belt scale caliberating device that gathers materials of the invention is set in support device, driving device and weight
The counterweight mounting rack of code character part connects, and driving device can drive counterweight component to move up and down；The middle part of the beam column of counterweight component
It is connect with the output end of driving device, entire counterweight component can be driven to move up and down by driving device；Distinguish at the both ends of beam column
It is connected with first longitudinal direction connecting rod and second longitudinal direction connecting rod, the both ends point at the both ends of the first studs and the second studs
It is not connect with first longitudinal direction connecting rod and second longitudinal direction connecting rod, the first studs is set to the top of the second studs；
Lateral through-hole is offered on first counterweight and the second counterweight, the first counterweight is sheathed on the first studs by through-hole,
Second counterweight is sheathed on the second studs by through-hole；Therefore the first, second studs can be by the first, second counterweight
Lift respectively；The diameter of the through-hole passed through on first counterweight for the first studs is not less than the first studs nominal diameter
2 times；The diameter of the through-hole passed through on second counterweight for the second studs is worn not less than on the first counterweight for the first studs
2 times of the diameter for the through-hole crossed；Therefore first the first counterweight can be lifted by the first studs, when the first counterweight is complete
Second counterweight could be lifted by the second studs after lifting, and not connect mutually both after the first counterweight and the second counterweight are raised
Touching, the device avoids the operations for manually carrying out taking, putting counterweight, and it is few to consume human and material resources；First longitudinal direction connecting rod and second is indulged
It is reserved with gap between connecting rod and the first counterweight and between the second counterweight, which can be avoided first longitudinal direction company
Extension bar and second longitudinal direction connecting rod and the first counterweight and frictional force is generated between the second counterweight and influence the standard of calibration result
True property；When caliberating device through the invention demarcates measuring belt scale of gathering materials, S1 by support device and gathers materials and measures skin
Belt scale connection, support device are in the underface at the weighing sensor position connected in measuring belt scale of gathering materials；S2 walks empty set material
Gathering materials above measuring belt scale, measuring belt scale of gathering materials are shut down；S3, then driving device control counterweight component moves down,
Fall within the second counterweight on fixed platform, the first counterweight is fallen on the second counterweight, between the first counterweight and the first studs
Not in contact with not in contact with carrying out mark Z-operation to weighing sensor between the second counterweight and the second studs；S4 carries out first
Secondary calibrated and calculated obtains the first calibration coefficient K '；S5, carry out second calibrated and calculated to the second calibration coefficient K "；S6 is according to
One calibration coefficient K ' and the second calibration coefficient K " judge whether the operation of S2-S5 is qualified；If S7 judges the operational qualification of S2-S5,
Then obtained gathering materials the calibration coefficient standard value K of measuring belt scale according to the first calibration coefficient K ' and the second calibration coefficient K "；If sentencing
The operation of disconnected S2-S5 is unqualified, then repeatedly S2~S6, until judging the operational qualification of S2-S5.It can thus be seen that of the invention
Measuring belt scale of gathering materials is demarcated without material object, while compared to the calibration process of existing caliberating device, it can
Quickly, accurately, labour-saving demarcates measuring belt scale of gathering materials.
Further, axis connects between the middle part of beam column and the output end of driving device, enable beam column vertically face from
By rotating, therefore the interconnecting piece that can be avoided beam column and driving device generates moment of flexure, influences the precision of calibration result.
Further, being connected in first longitudinal direction connecting rod and second longitudinal direction connecting rod prevents the first counterweight and the second counterweight
The transverse connecting rod of rotation, transverse connecting rod the first counterweight and the second counterweight can be prevented respectively around the first studs and
Second studs rotates the structural instability for leading to whole device and the first counterweight and the second counterweight in calibration process
In rotate and contact, lead to the inaccuracy of calibration result.
Further, by setting first position sensor, second position sensor and controller, this hair is enabled to
Bright caliberating device is more intelligent, realizes and automatically controls, automatic Calibration.
The measuring belt scale caliberating device progress of gathering materials of measuring belt scale scaling method through the invention of gathering materials of the invention,
By the beneficial effect of aforementioned present invention caliberating device it is found that scaling method of the invention does not use material object to measuring belt scale of gathering materials
It is demarcated, therefore workload is smaller, consumption human and material resources are less, have the advantages that accurate, quick, laborsaving.
Detailed description of the invention
Fig. 1 is that the measuring belt scale caliberating device that gathers materials of the embodiment of the present invention is installed on the entirety after gathering materials measuring belt scale
Structural schematic diagram.
Fig. 2 is the counterweight component structure diagram of the embodiment of the present invention.
Fig. 3 is the longitudinal sectional drawing of the counterweight component of embodiment illustrated in fig. 2 of the present invention.
Fig. 4 is the control system schematic diagram of measuring belt scale caliberating device of gathering materials in the embodiment of the present invention.
Fig. 5 is the method schematic illustration of the measuring belt scale scaling method of the invention that gathers materials.
Wherein, 1 is cold burden storehouse；2 be belt conveyor；3 be weighing sensor；4 be measuring belt scale of gathering materials；5 be sunpender；
6 be plate；7 be motor；8 be screw rod elevator；9 be first position sensor；10 be second position sensor；11 be control
Device；12 be the first counterweight；12-1 is first through hole；13 be the second counterweight；13-1 is the second through-hole；14 be the second studs；
15 be the first studs；16-1 is first longitudinal direction connecting rod；16-2 is second to connecting rod；17 be beam column；18 connect to be lateral
Extension bar；19 be display.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing:
Referring to Fig. 1 and Fig. 2, the measuring belt scale caliberating device that gathers materials of the invention, including support device, driving device and weight
Code character part, support device are set to the top of counterweight component, and driving device is set in support device, driving device and counterweight group
Part connection, driving device can drive counterweight component to move up and down；Counterweight component includes the first counterweight 12, the second counterweight 13 and weight
Code mounting rack, counterweight mounting rack include the first studs 15, the second studs 14, first longitudinal direction connecting rod 16-1, second
Longitudinally connected bar 16-2, beam column 17 and transverse connecting rod 18, the middle part of beam column 17 and the output end of driving device connect, beam column 17
Both ends be connected separately with first longitudinal direction connecting rod 16-1 and second longitudinal direction connecting rod 16-2, the both ends of the first studs 15 and
The both ends of second studs 14 are connect with first longitudinal direction connecting rod 16-1 and second longitudinal direction connecting rod 16-2 respectively, the first double end
Stud 15 is set to the top of the second studs 14；Lateral through-hole is offered on first counterweight 12 and the second counterweight 13,
Referring to Fig. 3, the cross through hole opened up on the first counterweight 12 is first through hole 12-1, and the cross through hole opened up on the second counterweight 13 is
Second through-hole 13-1；First counterweight 12 is sheathed on the first studs 15 by first through hole 12-1, and the second counterweight 13 passes through
Second through-hole 13-1 is sheathed on the second studs 14；First longitudinal direction connecting rod 16-1 and second longitudinal direction connecting rod 16-2 and
Gap is reserved between one counterweight 12 and between the second counterweight 13.
It include following step by the gather materials process of measuring belt scale calibration of the caliberating device of above structure referring to Fig. 1
It is rapid:
Support device is connect by S1 with measuring belt scale 4 of gathering materials, and support device is in measuring belt scale 4 of gathering materials and connects
3 position of weighing sensor underface；
S2, walks gathering materials above empty set material measuring belt scale 4, and measuring belt scale of gathering materials 4 is shut down；
S3, driving device control counterweight component move down, and are placed in the second counterweight 13 and the first counterweight 12 fixed
On platform (such as ground fixture surface), between the first counterweight 12 and the first studs 15 not in contact with, the second counterweight 13 with
Not in contact with carrying out mark Z-operation to weighing sensor 3 between second studs 14；
S4 is demarcated for the first time
Driving device driving counterweight mounting rack moves up and successively lifts the first counterweight 12 and the second counterweight 13, gathers materials
The weighing sensor 3 of measuring belt scale 4 measures the gross mass of the first counterweight 12 and the second counterweight 13 and to calculate the flat of gross mass
Mean value
According to average valueCalculate the first calibration coefficient of caliberating deviceWherein, m1For the first counterweight
(12) quality, m2For the quality of the second counterweight (13)；；
S5, second of calibration
Driving device driving counterweight mounting rack moves down, and is in the first counterweight 12 and is elevated state, the second counterweight 13
Be placed on the platform of the fixation, between the second studs 14 and the second counterweight 13 not in contact with；It is examined using weighing sensor 3
The quality of the first counterweight 12 is surveyed,；The average value of 12 mass of the first counterweight is sought according to detected value
According to average valueCalculate the second calibration coefficient
S6 judges whether the operation of S2-S5 is qualified according to the first calibration coefficient K ' and the second calibration coefficient K ", detailed process
It is as follows:
If | (K '-K ")/K ' |≤λ, then it represents that the operational qualification of S2-S5；If | (K '-K ")/K ' | > λ, then it represents that S2-S5
Operation it is unqualified；Wherein λ is preset value, generally takes 0.5%；
S7 " is gathered materials if judging the operational qualification of S2-S5 according to the first calibration coefficient K ' and the second calibration coefficient K
The calibration coefficient standard value K=(K '+K ")/2 of measuring belt scale；
If judging, the operation of S2-S5 is unqualified, repeatedly S2~S6, until judging the operational qualification of S2-S5.
As the preferred embodiment of the invention, as shown in figure 3, the public affairs of the first studs 15 and the second studs 14
Claim diameter d equal, the diameter D1 of first through hole 12-1 is not less than the 2 of 15 nominal diameter d of the first studs on the first counterweight 12
Times；The diameter D2 of second through-hole 13-1 is not less than 2 times of first through hole 12-1 diameter on second counterweight 13.This size requirement
Under, when counterweight mounting rack moves up, the first counterweight 12 and the second counterweight 13 can successively be promoted by counterweight mounting rack, and first
After counterweight and the second counterweight are elevated, do not contacted between the first counterweight 12 and the second counterweight 13；When driving device drives counterweight
When mounting rack moves down, the second counterweight 13 is first placed on fixed platform, and then the first counterweight 12 can fall in the first weight
On code 13.
As the preferred embodiment of the invention, as shown in Figure 1-Figure 3, the middle part of beam column 17 and the output end of driving device
Between axis connect, beam column 17 is connect along axis and is in vertical plane and is freely rotated.
As the preferred embodiment of the invention, as shown in Fig. 2, if the first studs 15 and the second studs 14 are each
Setting one, the first counterweight 12 and the second counterweight 13 are possible to be respectively relative to the first studs 15 and the second studs 14
Rotation, leads to entire caliberating device structural instability, then needing in first longitudinal direction connecting rod 16-1 and second longitudinal direction connecting rod
The transverse connecting rod 18 that connection prevents the first counterweight 12 and the second counterweight 13 from rotating on 16-2, transverse connecting rod 18 can be by first
The side of counterweight 12 and the second counterweight 13 surrounds, and prevents the first counterweight 12 and the second counterweight 13 rotating around the first studs 15
It is rotated with the second studs 14；Additionally need between transverse connecting rod 18 and the first counterweight 12 and with the second counterweight 13 it
Between all have gap, prevent between the first counterweight 12 and transverse connecting rod 18 and between the second counterweight 13 and transverse connecting rod 18
It rubs, causes caliberating device error larger.If the first studs 15 and the second respectively setting two of studs 14, first
Respectively correspond the first through hole 12-1 for opening up two horizontal distributions and the second through-hole 13-1 on counterweight 12 and the second counterweight 13, two
First through hole 12-1 is symmetrically opened on the first counterweight 12, and two the second through-hole 13-1 are symmetrically opened on the second counterweight 13, that
It does not need then to prevent the first counterweight 12 and the second counterweight 13 from rotating using transverse connecting rod 18.
As a preferred embodiment of the present invention, referring to Fig. 1 and Fig. 4, in order to enable measuring belt scale of gathering materials of the invention
Caliberating device has intelligence, can be realized the purpose for automatically controlling and moving calibration, measuring belt scale calibration of gathering materials of the invention
Device further includes display 19, first position sensor 9, second position sensor 10 and controller, display 19, driving dress
It sets, first position sensor 9 and second position sensor 10 are connect with controller, first position sensor 9 and the second position
Sensor 10 is set to the side of counterweight component, and first position sensor 9 and second position sensor are respectively used to detection first
The location of counterweight 12 and the second counterweight 13, controller can also be connect with the weighing sensor 3 for measuring belt scale 4 of gathering materials,
Controller is used for according to the weighing information of weighing sensor 3, the detection information of first position sensor 9 and second position sensor
10 detection information control driving device driving counterweight component moves up and down.
As the preferred embodiment of the invention, referring to Fig. 1, the test point of first position sensor 9 is in the first counterweight 12
Upper surface institute is planar；The test point of second position sensor 10 13 upper surface of the second counterweight institute planar.
As the preferred embodiment of the invention, in the above-described embodiment, support device and driving device can be used with
Flowering structure:
Wherein, support device includes sunpender 5 and plate 6, and the both ends of plate 6 are symmetrically connected with sunpender 5, the upper end of sunpender 5
It can be connect with the gantry for measuring belt scale 4 of gathering materials, driving device is fixedly connected with plate 6.Driving device includes 7 He of motor
Screw rod elevator 8, the output shaft of motor 7 and the input axis connection of screw rod elevator 8, motor 7 and screw rod elevator 8 are solid
Dingan County is in the support device, the axis state in a vertical shape of 8 screw rod of screw rod elevator and, silk vertical with the output shaft of motor 7
The screw rod axis of bar elevator 8 and the weighing of weighing sensor 3 direction are coaxial, the lower end of 8 screw rod of screw rod elevator and counterweight component
Connection.
Embodiment
Referring to Fig. 1 and Fig. 2, the measuring belt scale caliberating device that gathers materials of the present embodiment, including sunpender 5, plate 6, motor
7, screw rod elevator 8, first position sensor 9, second position sensor 10, controller 11, the first counterweight 12, the second counterweight
13, the second studs 14, the first studs 15, longitudinally connected bar 16, beam column 17, lateral connection beam 18 and display 19.
As shown in Figure 1, sunpender 5 and the gantry bolt for measuring belt scale 4 of gathering materials are connected when using measuring belt scale caliberating device is expected
It connects.Screw rod elevator 8 and motor 7 are fixed by bolts on plate 6, and plate 6 has through-hole, can be screw mandrel elevator 8
Bar stretches out；The lower end of 8 screw rod of screw rod elevator is bolted with beam column 17；The screw rod axis of screw rod elevator 8 and weighing
The weighing of sensor 3 direction is coaxial；Beam column 17 is connect with longitudinally connected 16 screw of bar；Longitudinally connected bar 16 has through-hole, for first
Studs 14 and the second studs 15 penetrate；Longitudinally connected bar 16 welds transverse connecting rod 18；First studs, 15 He
Second studs 14 is each passed through the second through-hole 13-1 on the first through hole 12-1 on the first counterweight 12 and the second counterweight 13；
First position sensor 9 and second position sensor two are respectively mounted and are fixed on ground；Sensor 9 test point in first position is first
12 upper surface of counterweight institute is planar；10 test point of second position sensor 13 upper surface of the second counterweight institute planar；The
One position sensor 9 and second position sensor 10 are respectively used to the location of the first counterweight 12 of detection and the second counterweight 13；
It is connected in first position sensor 9, second position sensor 10, motor 7, display 19 and measuring belt scale 4 of gathering materials
Weighing sensor 3 has connection with controller 11.The screw rod elevator 8 has anti-rotational structure, screw rod elevator 8
Screw rod will not rotate during the work time, only move up and down.The diameter D2 of the second through-hole 13-1 on second counterweight 13 is not small
In 2 times of the diameter D1 of first through hole 12-1 on the first counterweight 12.First through hole 12-1 diameter D1 is not less than the second studs
2 times of 14 nominal diameter d.First studs 15 is equal with the nominal diameter of the second studs 14.Longitudinally connected 16 He of bar
There are gaps with the first counterweight 12 and the second counterweight 13 for transverse connecting rod 18, avoid longitudinally connected bar 16 and transverse connecting rod 18
There are friction effects stated accuracies between the first counterweight 12 and the second counterweight 13.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, proving operation is carried out using the measuring belt scale caliberating device that gathers materials above
When, comprising the following steps:
Step 1) walks gathering materials above empty set material measuring belt scale 4, and measuring belt scale of gathering materials 4 is shut down, and checks weighing and sensing
Whether 3 function of device is intact.
Step 2) starts peeling, mark Z-operation
Second position sensor 10 detects that the second counterweight 13 lands, and first position sensor 9 detects the first counterweight 12
It falls on the second counterweight 13；First studs 15 and the first counterweight 12 are not in contact with the second studs 14 and the second counterweight 13
Not in contact with then carrying out mark Z-operation to weighing sensor 3；So far it completes removed the peel, mark Z-operation.
Step 3) starts the Ith calibration
12 volume quality m of the first counterweight is inputted respectively to controller 111, the second counterweight 13 quality m2；Then controller 11 is sent out
The number of delivering letters rotates motor 7, and to drive the lead screw of screw rod elevator 8 to move up, moving up for lead screw drives counterweight peace
It shelves entirety to move up, detects that the first counterweight 12 is promoted by the first studs 15 to first position sensor 9, second
It sets sensor 10 and detects that the second counterweight 13 is promoted by the second studs 14 and leaves ground；Controller 11 is according to preset time
It is spaced (prefixed time interval is generally 0.5~1s) and repeatedly reads 3 measured value of weighing sensor, then find out 12 He of the first counterweight
The average value of the gross mass of second counterweight 13Controller 11 is according to average valueIt is automatic to calculate the first calibration coefficient K ',Complete the Ith proving operation.
Step 4) starts the IIth calibration
Controller 11, which sends signal, rotates motor 7, until first position sensor 9 detects the first counterweight 12 by the
One studs 15 is promoted, and second position sensor 10 detects that the second counterweight 13 lands, the second studs 14 and the second weight
Code 13 not in contact with；Controller 11 repeatedly reads weighing according to prefixed time interval (prefixed time interval is generally 0.5~1s) and passes
After 3 measured value of sensor, be calculated 12 quality measured values of the first counterweight average valueController 11 is according to average value
It is automatic to calculate calibration coefficient K ",Complete the IIth proving operation.
Step 5) determines calibration coefficient standard value
If | (K '-K ")/K ' |≤0.5%, controller 11 determines that this proving operation is qualified, then controller 11 stores up automatically
It deposits, calibration coefficient standard value K, K=(K '+K ")/2 is shown by display 19；Then step 6) is carried out, this proving operation is
It completes.
If | (K '-K ")/K ' | > 0.5%, controller 11 determines that this proving operation is unqualified automatically；Then step is repeated
2) to the operation of step 4), until | (K '-K ")/K ' |≤0.5%, meet proving operation and completes to require；Then step 6) is carried out,
This time proving operation is completed.
Step 6) controller 11, which issues signal, rotates motor 7, and 8 screw rod of screw rod elevator moves downward, until second
Position sensor 10 detects that the second counterweight 13 lands, and first position sensor 9 detects that the first counterweight 12 falls within the second counterweight
On 13, the first studs 15 and the first counterweight 12 not in contact with, the second studs 14 and the second counterweight 13 not in contact with.
As can be seen from the above scheme, the invention has the characteristics that:
The measuring belt scale caliberating device that gathers materials of the invention provides power by motor 7, and controller 11 carries out automatically controlling,
The operation for manually take, put counterweight is avoided, it is few to consume human and material resources.
The measuring belt scale caliberating device that gathers materials of the invention is equipped with 13 two the first counterweight 12, the second counterweight counterweights, screw rod
Elevator 8 can individually promote the first counterweight 12 or promote the first counterweight 12 and the second counterweight 13 together, and calibration range is wide, calibration
Precision is high.
Scaling method controller 11 of the present invention repeatedly reads 3 measured value of weighing sensor according to prefixed time interval, asks
It substitutes into and calculates after the average value of measured value, calculated result is more reliable.
Controller 11 of the invention sends signal, and screw rod elevator 8 promotes the first counterweight 12 and the second counterweight 13, controller
11 are calculated automatically from calibration coefficient K '；Controller 11 sends signal, screw rod elevator 8 the first counterweights 12 of promotion, control later
Device 11 processed is calculated automatically from calibration coefficient K ", differentiates whether proving operation is qualified by calculating K ', K " relative error size, side
Method is more simple, efficient.
Caliberating device of the invention is easy for installation, stable and reliable for performance.
Claims (10)
- The measuring belt scale caliberating device 1. one kind is gathered materials, which is characterized in that including support device, driving device and counterweight component, Support device is set to the top of counterweight component, and driving device is set in support device, and driving device is connect with counterweight component, Driving device can drive counterweight component to move up and down；Counterweight component includes the first counterweight (12), the second counterweight (13) and counterweight mounting rack, and counterweight mounting rack includes the first double end Stud (15), the second studs (14), first longitudinal direction connecting rod (16-1), second longitudinal direction connecting rod (16-2), beam column (17) With transverse connecting rod (18), the middle part of beam column (17) and the output end of driving device are connected, and the both ends of beam column (17) are separately connected There are first longitudinal direction connecting rod (16-1) and second longitudinal direction connecting rod (16-2), the both ends of the first studs (15) and the second double end The both ends of stud (14) are connect with first longitudinal direction connecting rod (16-1) and second longitudinal direction connecting rod (16-2) respectively, the first double end spiral shell Column (15) is set to the top of the second studs (14)；Lateral through-hole is offered on first counterweight (12) and the second counterweight (13), the first counterweight (12) is sheathed on by through-hole On first studs (15), the second counterweight (13) is sheathed on the second studs (14) by through-hole；First counterweight (12) The diameter of the upper through-hole passed through for the first studs (15) is not less than 2 times of the first studs (15) nominal diameter；Second The diameter of the through-hole passed through on counterweight (13) for the second studs (14) is not less than on the first counterweight (12) for the first double end spiral shell 2 times of the diameter for the through-hole that column (15) passes through；Between first longitudinal direction connecting rod (16-1) and second longitudinal direction connecting rod (16-2) and the first counterweight (12) and with the second weight Gap is reserved between code (13).
- The measuring belt scale caliberating device 2. one kind according to claim 1 is gathered materials, which is characterized in that the first studs (15) and the nominal diameter of the second studs (14) is equal.
- The measuring belt scale caliberating device 3. one kind according to claim 1 is gathered materials, which is characterized in that the middle part of beam column (17) Axis connects between the output end of driving device, so that beam column (17) can connect along axis and be in vertical plane and be freely rotated.
- The measuring belt scale caliberating device 4. one kind according to claim 1 is gathered materials, which is characterized in that first longitudinal direction connecting rod The transverse direction for preventing the first counterweight (12) and the second counterweight (13) from rotating is connected in (16-1) and second longitudinal direction connecting rod (16-2) Connecting rod (18) all has gap between transverse connecting rod (18) and the first counterweight (12) and between the second counterweight (13).
- The measuring belt scale caliberating device 5. one kind according to claim 1 is gathered materials, which is characterized in that further include display (19), first position sensor (9), second position sensor (10) and controller, display (19), driving device, first Position sensor (9) and second position sensor (10) are connect with controller, and first position sensor (9) and the second position pass Sensor (10) is set to the side of counterweight component, and first position sensor (9) and second position sensor are respectively used to detection The location of one counterweight (12) and the second counterweight (13), controller can also be with the weighing and sensing of measuring belt scale of gathering materials (4) Device (3) connection.
- The measuring belt scale caliberating device 6. one kind according to claim 5 is gathered materials, which is characterized in that first position sensor (9) test point the first counterweight (12) upper surface institute planar；The test point of second position sensor (10) is in the second weight Code (13) upper surface institute is planar.
- The measuring belt scale caliberating device 7. one kind according to claim 1 is gathered materials, which is characterized in that driving device includes electricity Motivation (7) and screw rod elevator (8), the output shaft of motor (7) and the input axis connection of screw rod elevator (8), motor (7) Be fixedly mounted in support device with screw rod elevator (8), the axis state in a vertical shape of screw rod elevator (8) screw rod and with electricity The output shaft of motivation (7) is vertical, and the screw rod axis of screw rod elevator (8) and weighing sensor (3) weighing direction are coaxial, and screw rod mentions The lower end for rising machine (8) screw rod is connect with counterweight component.
- The measuring belt scale scaling method 8. one kind is gathered materials, by it is described in claim 1 gather materials measuring belt scale caliberating device into Row, which comprises the steps of:Support device is connect by S1 with measuring belt scale of gathering materials (4), and support device is in gather materials and connect on measuring belt scale (4) Weighing sensor (3) position underface；S2, walks empty set material measuring belt scale (4) gathering materials above, and measuring belt scale of gathering materials (4) is shut down；S3, driving device control counterweight component move down, and fall within the second counterweight (13) on fixed platform, the first counterweight (12) it falls on the second counterweight (13), not in contact with the second counterweight (13) between the first counterweight (12) and the first studs (15) Not in contact with carrying out mark Z-operation to weighing sensor (3) between the second studs (14)；S4 is demarcated for the first timeDriving device driving counterweight mounting rack moves up and successively lifts the first counterweight (12) and the second counterweight (13), gathers materials The weighing sensor (3) of measuring belt scale (4) measures the gross mass of the first counterweight (12) and the second counterweight (13) and to calculate total The average value of qualityAccording to average valueCalculate the first calibration coefficient K ' of caliberating device；S5, second of calibrationDriving device driving counterweight mounting rack moves down, and is in the first counterweight (12) and is elevated state, the second counterweight (13) Be placed on the platform of the fixation, between the second studs (14) and the second counterweight (13) not in contact with；Weighing sensor (3) Detect the quality of the first counterweight (12)；The average value of the first counterweight (12) quality is sought according to detected valueAccording to average valueCalculate the second calibration coefficient K " of caliberating device；S6 judges whether the operation of S2-S5 is qualified according to the first calibration coefficient K ' and the second calibration coefficient K "；S7 obtains metering of gathering materials according to the first calibration coefficient K ' and the second calibration coefficient K " if judging the operational qualification of S2-S5 The calibration coefficient standard value K of weighing belt；If judging, the operation of S2-S5 is unqualified, repeatedly S2~S6, until judging the operational qualification of S2-S5.
- The measuring belt scale scaling method 9. one kind according to claim 8 is gathered materials, which is characterized in that the first calibration coefficientSecond calibration coefficientCalibration coefficient standard value K=(K '+K ")/2；Wherein, m1It is The quality of one counterweight (12), m2For the quality of the second counterweight (13)；According to the first calibration coefficient K ' and the second calibration coefficient K " judge proving operation whether He Ge process are as follows:If | (K '-K ")/K ' |≤λ, then it represents that the operational qualification of S2-S5；If | (K '-K ")/K ' | > λ, then it represents that the operation of S2-S5 is unqualified；Wherein λ is preset value.
- The measuring belt scale scaling method 10. one kind according to claim 8 is gathered materials, which is characterized in that gather materials measuring belt Scale caliberating device further includes display (19), first position sensor (9), second position sensor (10) and controller, is shown Show that device (19), driving device, first position sensor (9) and second position sensor (10) are connect with controller, first It sets sensor (9) and second position sensor (10) is set to the side of counterweight component, first position sensor (9) and second It sets sensor and is respectively used to the location of detection the first counterweight (12) and second counterweight (13), controller and the measuring belt that gathers materials The weighing sensor (3) of scale (4) connects, and controller is for weighing information, the first position sensor according to weighing sensor (3) (9) the detection information control driving device driving counterweight component of detection information and second position sensor (10) moves up and down；In the S3, driving device control counterweight component is moved down, and second position sensor (10) detects the second counterweight (13) it falls on fixed platform, first position sensor (9) detection the first counterweight (12) is fallen on the second counterweight (13)；In S4, the quality m of the first counterweight (12) is first inputted respectively to controller (11)1And second counterweight (13) quality m2；Control Device control driving device driving counterweight mounting rack processed moves up and successively lifts the first counterweight (12) and the second counterweight (13), Until first position sensor (9) and second position sensor (10) detect the first counterweight (12) and the second counterweight (13) respectively It is raised, controller controls driving device and stops driving counterweight mounting rack；After controller control driving device driving counterweight mounting rack moves up, controller (11) is read according to prefixed time interval The measured value of weighing sensor (3), and calculate the average value of the gross mass of the first counterweight (12) and the second counterweight (13)And root According to average valueCalculate the first calibration coefficient K ' of caliberating device；In S5, controller control driving device driving counterweight mounting rack is moved down, until first position sensor (9) detect First counterweight (12) is elevated, and second position sensor (10) detects that the second counterweight (13) is placed on fixed platform and Between two studs (14) and the second counterweight (13) not in contact with；Controller, which controls driving device, to be stopped after driving counterweight mounting rack, and controller (11) reads according to prefixed time interval and weighs The measured value of sensor (3), and calculate the average value of the measured value of the second counterweight (13) qualityAnd according to average valueMeter Calculate the second calibration coefficient K "；In S6, controller (11) judges whether the operation of S2-S5 is qualified according to the first calibration coefficient K ' and the second calibration coefficient K "；In S7, if judging, the proving operation of S2-S5 is qualified, and controller (11) is according to the calibration of the first calibration coefficient K ' and second Number K " obtain gathering materials measuring belt scale calibration coefficient standard value K and control display (19) and show calibration coefficient standard value K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457659.2A CN110108344B (en) | 2019-05-29 | 2019-05-29 | Aggregate metering belt scale calibration device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457659.2A CN110108344B (en) | 2019-05-29 | 2019-05-29 | Aggregate metering belt scale calibration device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110108344A true CN110108344A (en) | 2019-08-09 |
| CN110108344B CN110108344B (en) | 2024-04-02 |
Family
ID=67492830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457659.2A Active CN110108344B (en) | 2019-05-29 | 2019-05-29 | Aggregate metering belt scale calibration device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110108344B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984176A (en) * | 2021-11-01 | 2022-01-28 | 深圳市乐福衡器有限公司 | Electronic scale weighing and testing equipment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392238Y (en) * | 2009-04-02 | 2010-01-27 | 徐州市三原技术产业有限公司 | Dynamic self-calibration and hang-weight device of electronic belt scale |
| CN103115664A (en) * | 2013-01-30 | 2013-05-22 | 西安交通大学 | Automatic calibration device for electronic balances |
| CN203069260U (en) * | 2013-01-30 | 2013-07-17 | 西安交通大学 | Electronic balance calibration device |
| CN103512647A (en) * | 2013-01-22 | 2014-01-15 | 山西长治维特衡器有限公司 | Device for verifying hanging weight of belt weigher |
| CN203519141U (en) * | 2013-10-14 | 2014-04-02 | 常州艾克瑞特衡器有限公司 | Work station for calibration, linear detection, and repeatability detection of counter scale |
| CN204854945U (en) * | 2015-07-29 | 2015-12-09 | 成都太微电子科技有限公司 | Calibration arrangement for be used for weighing module |
| CN105571775A (en) * | 2014-10-10 | 2016-05-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating method |
| CN107271019A (en) * | 2017-07-21 | 2017-10-20 | 山东钢铁集团日照有限公司 | A kind of belt scale weight method of calibration of equivalent physical goods inspection |
| CN107884057A (en) * | 2017-11-22 | 2018-04-06 | 苏州市计量测试研究所 | The automatic add load control of counterweight for electronic crane scale detection means |
| CN108469296A (en) * | 2018-02-11 | 2018-08-31 | 苏州市计量测试研究所 | A kind of electronic crane scale automatic detection device |
| CN209992063U (en) * | 2019-05-29 | 2020-01-24 | 甘肃路桥建设集团有限公司 | Calibration device for aggregate metering belt weigher |
-
2019
- 2019-05-29 CN CN201910457659.2A patent/CN110108344B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392238Y (en) * | 2009-04-02 | 2010-01-27 | 徐州市三原技术产业有限公司 | Dynamic self-calibration and hang-weight device of electronic belt scale |
| CN103512647A (en) * | 2013-01-22 | 2014-01-15 | 山西长治维特衡器有限公司 | Device for verifying hanging weight of belt weigher |
| CN103115664A (en) * | 2013-01-30 | 2013-05-22 | 西安交通大学 | Automatic calibration device for electronic balances |
| CN203069260U (en) * | 2013-01-30 | 2013-07-17 | 西安交通大学 | Electronic balance calibration device |
| CN203519141U (en) * | 2013-10-14 | 2014-04-02 | 常州艾克瑞特衡器有限公司 | Work station for calibration, linear detection, and repeatability detection of counter scale |
| CN105571775A (en) * | 2014-10-10 | 2016-05-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating method |
| CN204854945U (en) * | 2015-07-29 | 2015-12-09 | 成都太微电子科技有限公司 | Calibration arrangement for be used for weighing module |
| CN107271019A (en) * | 2017-07-21 | 2017-10-20 | 山东钢铁集团日照有限公司 | A kind of belt scale weight method of calibration of equivalent physical goods inspection |
| CN107884057A (en) * | 2017-11-22 | 2018-04-06 | 苏州市计量测试研究所 | The automatic add load control of counterweight for electronic crane scale detection means |
| CN108469296A (en) * | 2018-02-11 | 2018-08-31 | 苏州市计量测试研究所 | A kind of electronic crane scale automatic detection device |
| CN209992063U (en) * | 2019-05-29 | 2020-01-24 | 甘肃路桥建设集团有限公司 | Calibration device for aggregate metering belt weigher |
Non-Patent Citations (1)
| Title |
|---|
| 杨振顺: "《锅炉节能仪表的原理、使用与维修》", 人民交通出版社, pages: 215 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984176A (en) * | 2021-11-01 | 2022-01-28 | 深圳市乐福衡器有限公司 | Electronic scale weighing and testing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110108344B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201413188Y (en) | Multiple-conveyer connection material circulating type multifunctional belt scale automatic check system | |
| CN101363750B (en) | Correcting method of weigh without counter poise for large tonnage material level electronic scale | |
| CN200958967Y (en) | Material inspector for electronic belt balance | |
| CN201707033U (en) | Wood measurement detection identification system | |
| CN101169360A (en) | Powder material automatic rationing fluidity test device and method | |
| CN109178805A (en) | A kind of device for transporting objects with function of measuring | |
| CN110108344A (en) | One kind is gathered materials measuring belt scale caliberating device and method | |
| CN209992063U (en) | Calibration device for aggregate metering belt weigher | |
| CN101398327B (en) | On-line matter verifying device and method for belt feed weigher | |
| CN211235871U (en) | Concrete slump detection device | |
| CN205483215U (en) | Distributed automatic weighing controlling means prepares burden | |
| CN114812762B (en) | High-precision belt scale conveying belt detection device system and method | |
| CN209541889U (en) | A kind of mobile actual material calibration device of belted electronic balance | |
| CN210161401U (en) | Device for on-line monitoring of concrete performance and real-time adjustment of mix proportion | |
| CN111208040A (en) | Boneless slurry pipeline fluidity test equipment | |
| CN2185430Y (en) | Calibrator for belt weighing apparatus | |
| CN203083771U (en) | High-accuracy quality characteristic measuring instrument | |
| CN206208449U (en) | A kind of high accuracy static three-dimensional force sensor caliberating device | |
| CN211553665U (en) | Device for testing viscosity of granular sticky explosive | |
| CN108844495B (en) | A kind of device automatically determining the granular media angle of external friction and measuring method | |
| CN211504138U (en) | Intelligent response laser reinforced concrete structure swing optical detector | |
| CN108750710B (en) | A kind of superfine powder energetic material automatic gauge feeding device | |
| CN209655953U (en) | A kind of detection device of measure-ball screw rod and screw rod set axial gap | |
| CN209446126U (en) | A kind of geotechnical engineering device for measuring drilling water level | |
| CN220871885U (en) | Experimental device for simulating real object verification of belt scale |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |