CN110426108A - A kind of belt balance with high precision for extreme temperature environment - Google Patents
A kind of belt balance with high precision for extreme temperature environment Download PDFInfo
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- CN110426108A CN110426108A CN201910871022.8A CN201910871022A CN110426108A CN 110426108 A CN110426108 A CN 110426108A CN 201910871022 A CN201910871022 A CN 201910871022A CN 110426108 A CN110426108 A CN 110426108A
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- Prior art keywords
- high precision
- weighing sensor
- fixedly connected
- temperature environment
- extreme temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
- G01G11/003—Details; specially adapted accessories
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- Structure Of Belt Conveyors (AREA)
Abstract
The invention discloses a kind of belt balance with high precision for extreme temperature environment, including bracket, driven voller, drive roll, sidewall paneling, carrying roller, material bin and Weighing mechanism, conveyer belt is connected between the driven voller and drive roll, the conveyer belt is contacted with carrying roller and Weighing mechanism, the sidewall paneling, material bin and Weighing mechanism are fixedly connected on bracket, it is characterized in that, weighing sensor assembly corresponding with Weighing mechanism is fixedly connected in the bracket, the weighing sensor assembly includes loading plate, the downside of the loading plate is equipped with weighing sensor ontology, second flange plate is connected between the loading plate and weighing sensor ontology；One of present invention is used for the belt balance with high precision of extreme temperature environment, it can create the microenvironment within the scope of normal working temperature for weighing sensor, using multiple temperature-compensating system, fundamentally ensure that weighing sensor data are not affected by temperature, so that the precision of belt balance with high precision be substantially improved.
Description
Technical field
The present invention relates to belt balance with high precision technical fields, more particularly to a kind of high-precision for extreme temperature environment
Weighing belt.
Background technique
Belted electronic balance is mainly made of load carrier, weighing sensor, velocity sensor and weight display.Weighing
When, by the weight transfer to weighing sensor of material on belt, weighing sensor exports and is proportional to material weight load carrier
Voltage (mV) signal of power, send A/D converter to become digital quantity A after amplifier amplifies, is sent to arithmetic unit；Material speed is defeated
After entering velocity sensor, velocity sensor exports umber of pulse B, is also sent to arithmetic unit；After arithmetic unit carries out operation to A, B, i.e.,
Obtain the inventory of this measurement period.Each measurement period is added up, the material continued through on belt can be obtained
Total amount.
For the precision for improving weighing belt, the technical solution used in the prior art can be divided into three kinds to a certain extent, and one
It is using the higher more advanced sensing element of precision, second is that optimizing the arrangement of sensor, third is that processing and calculation of the optimization to signal
Method, these technical solutions all have ignored influence of the temperature to sensor, and the weighing sensor that belted electronic balance uses has centainly
Temperature coefficient, output signal can vary with temperature and drift about, and referred to as " temperature drift ", static characteristic and environment temperature have closely
Connection.Since the operating ambient temperature of sensor may change greatly in real work, and the heat due to caused by temperature change
It exports larger, it will biggish measurement error is brought, meanwhile, temperature change also influences the size of zero point and Sensitirity va1ue, then
Influence the static characteristic of sensor.
In the prior art for weighing belt weighing sensor work normally ambient temperature range be generally -20 DEG C~+
50 DEG C, the environment temperature in many use environments is all larger than 50 DEG C, or even significantly larger than 50 DEG C, such as high temperature area is outdoor
Operation, not only will affect the precision of sensor, and be easy to cause weighing sensor coating material fusing, solder joint to become civilized,
The problems such as elastomer internal stress recurring structure changes.
Application No. is the Chinese invention patents of CN201811288263.1 to disclose a kind of double fulcrum high-precision electronic belts
Scale, is described that " temperature sensor 4 is connected with weighing sensor 1113, weighing and sensing of the temperature sensor 4 to use site
1113 temperature of device is constantly measured, and the different stress that different temperatures is generated compensate, to further eliminate belt
Influence of the tension to measuring accuracy ", the method for this compensation still can have biggish error, can not be inherently eliminated temperature
Influence to sensor, and thermal extremes environment irreversible lesion caused by sensor can not be eliminated.
Therefore, in view of the above technical problems, it is necessary to which a kind of belt balance with high precision for extreme temperature environment is provided.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of belt balance with high precision for extreme temperature environment, it can
Create the microenvironment within the scope of normal working temperature for weighing sensor is fundamentally ensured using multiple temperature-compensating system
Weighing sensor data are not affected by temperature, so that the precision of belt balance with high precision be substantially improved.
To achieve the goals above, the technical solution that one embodiment of the invention provides is as follows:
A kind of belt balance with high precision for extreme temperature environment, it is described.
As a further improvement of the present invention, including bracket, driven voller, drive roll, sidewall paneling, carrying roller, material bin and title
Heavy-duty machine structure is connected with conveyer belt between the driven voller and drive roll, the conveyer belt is contacted with carrying roller and Weighing mechanism, institute
Sidewall paneling, material bin and Weighing mechanism is stated to be fixedly connected on bracket, which is characterized in that be fixedly connected in the bracket with
The corresponding weighing sensor assembly of Weighing mechanism, the weighing sensor assembly includes loading plate, the downside of the loading plate
Equipped with weighing sensor ontology, second flange plate, the loading plate are connected between the loading plate and weighing sensor ontology
Lower end be fixedly connected with multiple regulation columns to match with weighing sensor ontology, the regulation column is far from weighing sensor sheet
Temperature sensor is connected in the one side wall of body, the lower end of the regulation column is fixedly connected with multiple limit plates, the limit plate
It is in contact with the lower end of weighing sensor ontology, the lower end of the limit plate is fixedly connected with electric heating piece；
The lower end of the loading plate is fixedly connected with limitting casing, is connected with hollow phase transformation box in the limitting casing, it is described in
Kongxiang, which becomes between box and limitting casing, is placed with sealing ring, is fixedly connected with a pair of of first flange plate, institute on the hollow phase transformation box
It states and is threaded with fixing bolt between first flange plate and loading plate, refrigerant chamber is equipped in the hollow phase transformation box, it is described cold
Matchmaker is intracavitary to be contained with refrigerant, and the lateral wall and inner sidewall of the hollow phase transformation box are crimp shape, the hollow phase transformation box
Lower end is equipped with water absorption pad.
As a further improvement of the present invention, shearing door is plugged on the material bin.
As a further improvement of the present invention, scraper is connected on the bracket, and scraper is located at the lower end of conveyer belt, institute
Scraper is stated to be in contact with conveyer belt.
As a further improvement of the present invention, maintenance port, the refrigerant chamber are fixedly connected on the hollow phase transformation box
It can be in communication with the outside by maintenance port.
As a further improvement of the present invention, the refrigerant includes ether and ethyl alcohol, and the ratio of the ether and ethyl alcohol is
3:1。
As a further improvement of the present invention, the total volume under all liquid conditions of the refrigerant is refrigerant chamber total volume
1/5~1/6.
As a further improvement of the present invention, air pressure inside of the refrigerant chamber when temperature is 25 degrees Celsius be 0.7~
0.9 standard atmospheric pressure.
As a further improvement of the present invention, digging on the loading plate has threading hole, and the upper end of the loading plate is fixed
It is connected with the desiccant box to match with threading hole, is filled with desiccant in the desiccant box.
As a further improvement of the present invention, the upper end of the desiccant box is fixedly connected with sealing shroud.
As a further improvement of the present invention, the regulation column is rubber material, is carved with anti-skid chequer on the regulation column, institute
Regulation column and weighing sensor ontology are stated as interference fit.
The beneficial effects of the present invention are: one of present invention is used for the belt balance with high precision of extreme temperature environment, it can
Create the microenvironment within the scope of normal working temperature for weighing sensor is fundamentally ensured using multiple temperature-compensating system
Weighing sensor data are not affected by temperature, so that the precision of belt balance with high precision be substantially improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the belt balance with high precision for extreme temperature environment in a specific embodiment of the invention
Figure；
Fig. 2 is a kind of local main view of the belt balance with high precision for extreme temperature environment in a specific embodiment of the invention
Figure；
Fig. 3 is the main view sectional view in Fig. 2；
Fig. 4 is the top cross-sectional view in Fig. 2；
Fig. 5 is a kind of confined explosion of the belt balance with high precision for extreme temperature environment in a specific embodiment of the invention
Figure one；
Fig. 6 is a kind of confined explosion of the belt balance with high precision for extreme temperature environment in a specific embodiment of the invention
Figure two.
In figure: 1. brackets, 2. driven vollers, 3. drive rolls, 4. sidewall panelings, 5. carrying rollers, 6. material bins, 7. shearing doors, 8. are scraped
Knife, 9. Weighing mechanisms, 10. weighing sensor assemblies, 11. loading plates, 12. desiccant box, 13. sealing shrouds, 14. limitting casings, 15.
Hollow phase transformation box, 16. first flange plates, 17. fixing bolts, 18. water absorption pads, 19. maintenance ports, 20. weighing sensor ontologies,
21. second flange plate, 22. sealing rings, 23. regulation columns, 24. limit plates, 25. temperature sensors, 26. electric heating pieces, 27. refrigerants.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
In each diagram of the invention, for the ease of illustration, structure or partial certain sizes can be relative to other knots
Therefore structure or partial enlargement are only used for the basic structure of diagram subject of the present invention.
The term of the representation space relative position used herein such as "left", "right", " left side ", " right side " is for just
A unit as shown in the drawings or feature are described relative to another unit or the relationship of feature in the purpose of explanation.It is empty
Between the term of relative position can be intended to include different direction of the equipment in use or work other than orientation as shown in the figure.
For example, the unit for being described as being located at other units or feature " right side " will be located at other if the equipment in figure overturn
Unit or feature " left side ".Therefore, exemplary term " right side " can include both orientation of left and right side.Equipment can be with
Other modes are directed (be rotated by 90 ° or other directions), and are interpreted accordingly used herein with space correlation description language.
Join shown in Fig. 1, in a specific embodiment of the invention, a kind of belt balance with high precision for extreme temperature environment,
Including bracket 1, driven voller 2, drive roll 3, sidewall paneling 4, carrying roller 5, material bin 6 and Weighing mechanism 9, driven voller 2 and drive roll 3 it
Between be connected with conveyer belt, conveyer belt is contacted with carrying roller 5 and Weighing mechanism 9, and sidewall paneling 4, material bin 6 and Weighing mechanism 9 are solid
Surely it is connected on bracket 1, shearing door 7 is plugged on material bin 6, is connected with scraper 8 on bracket 1, and scraper 8 is located at conveyer belt
Lower end, scraper 8 are in contact with conveyer belt, and scraper 8 can scrape off remaining material on conveyer belt.Above structure is the prior art,
Suitable structure model selected according to actual demand by those skilled in the art, it can be achieved that required weighing belt, in bracket 1
It is fixedly connected with weighing sensor assembly 10 corresponding with Weighing mechanism 9.
Join shown in Fig. 2~Fig. 5, weighing sensor assembly 10 includes loading plate 11, and loading plate 11 is weighing sensor assembly
10 primary intensity provides structure, and the downside of loading plate 11 is equipped with weighing sensor ontology 20, loading plate 11 and weighing sensor
Second flange plate 21 is connected between ontology 20, weighing sensor ontology 20 is fixedly connected on loading plate by second flange plate 21
On 11, the lower end of loading plate 11 is fixedly connected with multiple regulation columns 23 to match with weighing sensor ontology 20, regulates and controls column 23
For rubber material, regulate and control and be carved with anti-skid chequer on column 23, regulation column 23 and weighing sensor ontology 20 are interference fit, regulate and control column 23
The stability of weighing sensor ontology 20 can be enhanced, meanwhile, regulation column 23 can provide certain subtract for weighing sensor ontology 20
Effect is shaken, weighing sensor ontology 20 is made to be not easily susceptible to the influence of vibration, regulates and controls one of column 23 far from weighing sensor ontology 20
Temperature sensor 25 is connected on side wall, temperature sensor 25 can perceive the temperature around weighing sensor ontology 20, regulate and control column
23 lower end is fixedly connected with multiple limit plates 24, and limit plate 24 is in contact with the lower end of weighing sensor ontology 20, limit plate
24 pairs of weighing sensor ontologies 20 have certain supporting role, and the lower end of limit plate 24 is fixedly connected with electric heating piece 26, electric heating piece
26 work can produce heat, convenient for changing the microenvironment around weighing sensor ontology 20 under the conditions of extremely cold.
Join shown in Fig. 2~Fig. 6, the lower end of loading plate 11 is fixedly connected with limitting casing 14, is connected in limitting casing 14 hollow
Phase transformation box 15, limitting casing 14 are used to ensure the stability of hollow phase transformation box 15, while can enhance hollow phase transformation box 15 and loading plate
Leakproofness between 11 is placed with sealing ring 22 between hollow phase transformation box 15 and limitting casing 14, during sealing ring 22 can enhance again
Kongxiang becomes the leakproofness between box 15 and loading plate 11, is fixedly connected with a pair of of first flange plate 16 on hollow phase transformation box 15, the
Fixing bolt 17 is threaded between one flanged plate 16 and loading plate 11, first flange plate 16 can be welded with hollow phase transformation box 15
It connects, the disassembly and installation that centering Kongxiang becomes box 15 is easy to implement by fixing bolt 17, and stability is high.
Be equipped with refrigerant chamber in hollow phase transformation box 15, refrigerant is intracavitary to be contained with refrigerant 27, the lateral wall of hollow phase transformation box 15 and
Inner sidewall is crimp shape, can substantially increase the heat exchange area with the external world, and hollow phase transformation box 15 can be pure copper material, fine copper
The strength of materials is big, good heat conductivity, and the lower end of hollow phase transformation box 15 is equipped with water absorption pad 18, in the middle Kongxiang become box 15 surface because
When temperature change generates more droplet, droplet can be dropped on water absorption pad 18, and the droplet on water absorption pad 18 evaporates again can also
Absorb heat again, can the secondary temperature reduced in hollow phase transformation box 15, be fixedly connected with maintenance port 19 on hollow phase transformation box 15, it is cold
Matchmaker's chamber can be in communication with the outside by maintenance port 19, open the tool that maintenance port 19 needs profession, can by maintenance port 19
Realize the adjustment for carrying out air pressure intracavitary to refrigerant or the addition and replacement of refrigerant 27.
Specifically, refrigerant 27 includes ether and ethyl alcohol, and the ratio of ether and ethyl alcohol is 3:1, and the boiling point of ether is boiling point
34.6 DEG C, the boiling point of ethyl alcohol is 78 DEG C, when the temperature that Kongxiang becomes around box 15 in the middle reaches the boiling point of ether, ether can gradually by
Liquid becomes gaseous state, and the heat absorption of this process can siphon away the amount of heat about and within hollow phase transformation box 15, when temperature is still lasting
When rising reaches the boiling point of ethyl alcohol, ethyl alcohol gradually can become gaseous state from liquid, and the heat absorption of this process secondary can siphon away hollow phase transformation box
Amount of heat about and within 15, the total volume under all liquid conditions of refrigerant 27 are the 1/5~1/ of refrigerant chamber total volume
6, it is ensured that refrigerant 27 becomes having enough spaces when gaseous state, and air pressure inside of the refrigerant chamber when temperature is 25 degrees Celsius is 0.7
The boiling point of~0.9 standard atmospheric pressure, ether and ethyl alcohol can reduce, specifically can be by the intracavitary pressure control of refrigerant at 0.82
Standard atmospheric pressure can make the pressure in hollow phase transformation box 15 be unlikely to excessive when refrigerant 27 is evaporated to gas, convenient for promoting peace
Quan Xing.
Join shown in Fig. 2, Fig. 3, Fig. 5 or Fig. 6, digging on loading plate 11 has threading hole, and threading hole can be used for the structures such as conducting wire
Pass through, the upper end of loading plate 11 is fixedly connected with the desiccant box 12 to match with threading hole, is filled in desiccant box 12
Desiccant, conducting wire may pass through desiccant box 12, and the upper end of desiccant box 12 is fixedly connected with sealing shroud 13, and sealing shroud 13 is understood and led
Line is in close contact, and substantially enhances airtightness, and the desiccant in desiccant box 12 can absorb in hollow phase transformation box 15, i.e. weighing and sensing
Moisture around device ontology 20 can also largely prevent moisture from entering in hollow phase transformation box 15, weighing sensor ontology
Around 20, it can be ensured that the drying of 20 surrounding microenvironment of weighing sensor ontology, Kongxiang becomes 15 inner wall temperature of box and changes in the middle
Shi Buhui generates droplet.
Specifically, the present invention is all connected with equipped with control system, control system with multiple temperature sensors 25, can be by more
A temperature sensor 25 perceives the temperature around weighing sensor ontology 20, the high temperature that can be set by a person skilled in the art and low
The temperature threshold of temperature, wherein high temperature threshold value is 50 DEG C or more, and low temperature threshold is -20 DEG C hereinafter, not according to specific sensor
Together, different threshold values can be set, while in threshold range, can also capable field technique personnel worked according to different sensors
Corresponding function is arranged in data variation in temperature range, carries out the compensation in data.
When being higher than high temperature threshold value, alarm can occur for control system, remind staff to reach a high temperature threshold value, if lasting make
Industry may cause the inaccuracy of result, during reaching a high temperature threshold value, can successively undergo following procedure: intracavitary cold of refrigerant
Matchmaker 27 is changed into gaseous state by liquid, the heat absorption of this process, can reduce the temperature around weighing sensor ontology 20 faster, meanwhile,
Under normal circumstances, small water can be generated because of the very fast variation of temperature on the moisture in the lateral wall surrounding air of hollow phase transformation box 15
Pearl is attached on the lateral wall of hollow phase transformation box 15, and after the ether in refrigerant 27 becomes gas completely, temperature continues to increase,
Ethyl alcohol can also repeat ether and be changed into gaseous process by liquid, equally can generate small water on the lateral wall of hollow phase transformation box 15
Pearl can be dropped on water absorption pad 18 when droplet is larger, and water absorption pad 18 has the effect of water storage, hollow if temperature continues to rise
Moisture in the droplet and water absorption pad 18 of 15 side wall of phase transformation box can evaporate, and evaporation endothermic can also continue to weighing sensor sheet
Microenvironment around body 20 cools down, total compensation effect for having triple hot environments.
When temperature reduces, refrigerant 27 can be changed into liquid by gaseous state, this process heat release, when multiple temperature sensors 25 detect
Temperature when being lower than low level low temperature threshold, control system can control the compensation that electric heating piece 26 is heated, until temperature sensor
The temperature of 25 detections is located within the threshold value of setting.
As can be seen from the above technical solutions, the invention has the following advantages:
One of present invention is used for the belt balance with high precision of extreme temperature environment, can create for weighing sensor normal
Microenvironment in operating temperature range fundamentally ensures weighing sensor data not by temperature using multiple temperature-compensating system
Degree influences, so that the precision of belt balance with high precision be substantially improved.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of belt balance with high precision for extreme temperature environment, including bracket (1), driven voller (2), drive roll (3), side wall
Plate (4), carrying roller (5), material bin (6) and Weighing mechanism (9) are connected with transmission between the driven voller (2) and drive roll (3)
Band, the conveyer belt are contacted with carrying roller (5) and Weighing mechanism (9), the sidewall paneling (4), material bin (6) and Weighing mechanism
(9) it is fixedly connected on bracket (1), which is characterized in that be fixedly connected in the bracket (1) opposite with Weighing mechanism (9)
The weighing sensor assembly (10) answered, the weighing sensor assembly (10) include loading plate (11), the loading plate (11)
Downside is equipped with weighing sensor ontology (20), is connected with the second method between the loading plate (11) and weighing sensor ontology (20)
Blue plate (21), the lower end of the loading plate (11) are fixedly connected with multiple regulation columns to match with weighing sensor ontology (20)
(23), it is connected with temperature sensor (25) in the one side wall of regulation column (23) separate weighing sensor ontology (20), it is described
The lower end of regulation column (23) is fixedly connected with multiple limit plates (24), the limit plate (24) and weighing sensor ontology (20)
Lower end is in contact, and the lower end of the limit plate (24) is fixedly connected with electric heating piece (26)；
The lower end of the loading plate (11) is fixedly connected with limitting casing (14), is connected with hollow phase transformation box in the limitting casing (14)
(15), it is placed with sealing ring (22) between the hollow phase transformation box (15) and limitting casing (14), on the hollow phase transformation box (15)
It is fixedly connected with a pair of of first flange plate (16), is threaded with fixation between the first flange plate (16) and loading plate (11)
Bolt (17), the hollow phase transformation box (15) is interior to be equipped with refrigerant chamber, and the refrigerant is intracavitary to be contained with refrigerant (27), the middle Kongxiang
The lateral wall and inner sidewall for becoming box (15) are crimp shape, and the lower end of the hollow phase transformation box (15) is equipped with water absorption pad
(18)。
2. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that it is described enter
Shearing door (7) is plugged on hopper (6).
3. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that the branch
It is connected on frame (1) scraper (8), and scraper (8) is located at the lower end of conveyer belt, the scraper (8) is in contact with conveyer belt.
4. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that in described
Kongxiang, which becomes on box (15), to be fixedly connected with maintenance port (19), and the refrigerant chamber can be in communication with the outside by maintenance port (19).
5. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that described cold
Matchmaker (27) includes ether and ethyl alcohol, and the ratio of the ether and ethyl alcohol is 3:1.
6. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that described cold
Total volume under matchmaker (27) all liquid conditions is the 1/5~1/6 of refrigerant chamber total volume.
7. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that described cold
Air pressure inside of matchmaker's chamber when temperature is 25 degrees Celsius is 0.7~0.9 standard atmospheric pressure.
8. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that described to hold
Digging on support plate (11) has threading hole, and the upper end of the loading plate (11) is fixedly connected with the desiccant box to match with threading hole
(12), desiccant is filled in the desiccant box (12).
9. a kind of belt balance with high precision for extreme temperature environment according to claim 8, which is characterized in that described dry
The upper end of drying prescription box (12) is fixedly connected with sealing shroud (13).
10. a kind of belt balance with high precision for extreme temperature environment according to claim 1, which is characterized in that described
Regulating and controlling column (23) is rubber material, and anti-skid chequer, the regulation column (23) and weighing sensor sheet are carved on the regulation column (23)
Body (20) is interference fit.
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| CN201910871022.8A CN110426108B (en) | 2019-09-16 | 2019-09-16 | High-precision belt scale for extreme temperature environment |
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|---|---|---|---|
| CN201910871022.8A CN110426108B (en) | 2019-09-16 | 2019-09-16 | High-precision belt scale for extreme temperature environment |
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| CN110426108B CN110426108B (en) | 2021-06-22 |
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| CN110864779A (en) * | 2019-11-26 | 2020-03-06 | 徐州上达科技有限公司 | High-precision belt scale for extreme temperature environment |
| CN113390496A (en) * | 2021-05-24 | 2021-09-14 | 张小明 | Split screen tracing intelligent scale |
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| CN110864779A (en) * | 2019-11-26 | 2020-03-06 | 徐州上达科技有限公司 | High-precision belt scale for extreme temperature environment |
| CN110865203A (en) * | 2019-11-28 | 2020-03-06 | 徐州上达科技有限公司 | High-precision belt scale speed measuring device |
| CN113390496A (en) * | 2021-05-24 | 2021-09-14 | 张小明 | Split screen tracing intelligent scale |
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