CN203177935U - Weight hanging device for belt scale - Google Patents
Weight hanging device for belt scale Download PDFInfo
- Publication number
- CN203177935U CN203177935U CN 201220684662 CN201220684662U CN203177935U CN 203177935 U CN203177935 U CN 203177935U CN 201220684662 CN201220684662 CN 201220684662 CN 201220684662 U CN201220684662 U CN 201220684662U CN 203177935 U CN203177935 U CN 203177935U
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- Prior art keywords
- scale
- link code
- screw rod
- loading
- belt
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- Expired - Fee Related
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Abstract
The utility model relates to a weight-hanging device for a belt scale. The weight-hanging device for a belt scale includes a belt and an electronic hoist scale. A loading buffer device is added below the electronic hoist scale. The loading buffer device includes a cylinder body, a piston pull rod and a press spring. A piston pull rod is installed in the cylinder body. The press spring is installed between the lower end face of a piston of the piston pull rod and the upper end of the bottom part of the cylinder. A connection screw rod is arranged on the upper part of the cylinder body. A connection ring is arranged on the lower end of the piston pull rod. The loading buffer device is connected with a hook screw rod on the lower end of the electronic hoist scale through the through the connection screw rod on the upper part of the cylinder body and an adjusting nut. By adopting the threaded sleeve loading mechanism, labor amount of loading hanging weights is reduced substantially. At the same time, a loading force on a single side can reach to a value over 300kg. The requirements for simulating a practical production working condition are satisfied and data obtained through testing are approximate to a practical value basically. By adopting the loading buffer device, influence on the hanging weights caused by external wind power and ground shake is eliminated. Four continuous hanging weight values are 4258, 4261, 4262 and 4262 respectively and the error rate is 0.7 per mill.
Description
Technical field
The utility model relates to a kind of belt conveyer scale link code device, especially a kind of belt conveyer scale link code device for coal handling.
Background technology
Along with the continuous surge of coal handling amount, at a large amount of coal handlings and nervous sailing date, make the weigh quality of metering of belt conveyer scale link code device to be protected.In order to guarantee fairness and the accuracy of the metering of belt conveyer scale link code device, every belt conveyer scale link code device all can be entrusted metrological supervision office forced examination once every year.But in use in recent years, find in the metering cycle in 1 year, can not guarantee the entirely accurate of its metering---several factors is wearing out of metering outfit for example, and the variation of external factors can cause the excessive situation generation of error in dipping in the metering timeliness.
At present employed traditional link code method of testing by two 20KG counterweights has limitation for the judgement of belt conveyer scale link code device degree of accuracy.Belt conveyer scale link code device was by 10% of minimum flow during the flow of link code test used less than reality.The test of tradition link code can only realize by the amplification to data, and data have produced error artificially in amplification process.
The test of tradition link code is subjected to the external environment factor easily and disturbs.The for example wind-force on the harbour, vehicle vibrations to ground etc. of travelling.In the continuous several times link code, the repeated non-constant of link code number, the error rate of adjacent twice link code number are difficult to play to metering accuracy and failure judgment effect often greater than 1%.Only running into bigger hardware problem just might distinguish by traditional link code.
Increasing counterweight weight makes manpower be competent at this work.Be not only a no small expenditure if shorten the materials calibration metering cycle, and the every supporting flow processs such as manpower and materials that need during materials calibration also are to cause no small pressure concerning operation operation department of company.
Summary of the invention
The utility model is that a kind of belt conveyer scale link code device will be provided, this belt conveyer scale link code device is by adopting the screw shell load maintainer, alleviated the labor capacity that loads link code greatly, one-sided loading force can reach more than the 300KG simultaneously, satisfy simulation actual production operating mode, the data that test draws are substantially near actual value.
The technical solution of the utility model is: a kind of belt conveyer scale link code device, comprise belt, and set up the loading snubber assembly below the electronic crane scale, electronic crane scale.
Load snubber assembly and comprise cylindrical shell, pitch brace, stage clip, pitch brace is housed in the cylindrical shell, between the piston lower surface of pitch brace and the upper end, cylindrical shell bottom stage clip is housed, cylindrical shell top is provided with connecting screw rod, and the pitch brace lower end is provided with abutment ring.
The loading snubber assembly is connected with the hook screw rod of electronic crane scale lower end with setting nut by the connecting screw rod on cylindrical shell top.
Setting nut two ends are respectively equipped with positive and negative screw thread.
The beneficial effects of the utility model are:
By adopting the screw shell load maintainer, alleviated the labor capacity that loads link code greatly, one-sided loading force can reach more than the 300KG simultaneously, satisfies simulation actual production operating mode, and the data that test draws are substantially near actual value.Load snubber assembly and solved the influence that extraneous wind-force, earth shock cause link code.Continuous four link code numbers are respectively 4258,4261,4262,4262, and error rate is 0.7 ‰.
One cover loads the snubber assembly cost of manufacture and is about 4000 yuan, and each Weights and Measures Bureau demarcation expense is 1600 yuan, once calculates by the every platform balance demarcation of per season, and can reduce expenses is 1600*4*4=32,000 yuan.(the door machine of not considering to need the operation operating portion to cooperate and demarcate to turn out for work, shovel loader, forklift, belt feeder, truck, stevedore's etc. running costs).
Improve fault judgement rate.Promote loading and unloading coal metering quality.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 loads snubber assembly structure cut-open view.
Embodiment
As shown in Figure 1, a kind of belt conveyer scale link code device comprises belt 1, and electronic crane scale 3 loads snubber assembly 4, setting nut 5 etc.
There is electronic crane scale 3 pedestal 2 both sides below the belt 1 hook respectively, set up between electronic crane scale 3 and the ground to load snubber assembly 4.
As shown in Figure 2, load snubber assembly 4 and comprise cylindrical shell 6, pitch brace 7, stage clip 8, pitch brace 7 is housed in the cylindrical shell 6, between the piston lower surface of pitch brace 7 and the upper end, cylindrical shell 6 bottoms stage clip 8 is housed, cylindrical shell 6 tops are provided with connecting screw rod 9, and pitch brace 7 lower ends are provided with abutment ring.
Loading snubber assembly 4 is connected with the hook screw rod of setting nut 5 with electronic crane scale 3 lower ends by the connecting screw rod 9 on cylindrical shell 6 tops.Setting nut 5 two ends are respectively equipped with positive and negative screw thread.
The mathematical model of belted electronic balance link code device metering coal is by measuring the theoretical link code number that some critical data can manual calculations goes out the coal that weighs in the unit interval.Concrete grammar is as follows:
(1) measures belt feeder earlier and rotate the required time T of a whole circle
Rotating speed V when (2) measuring the belt feeder normal rotation
Band
(3) calculate the whole long S=T * V of total skin that encloses belt
Band
(4) load adjusting link code weight G=G
s+ G
nG
s=G
n=200KG
(5) determine the actual measurement segment length L of every main scale/secondary scale
(6) calculate the simulation object through the time of measuring section
(7) calculate the flow that whole measuring section passes through in the unit interval
(8) be by the flow of whole skin in the long time so
Record following parameter through the measurement to the secondary scale of 4# belt conveyer scale link code device:
T＝30s
G
s＝200KG、G
n＝200KG
V
Band=1.70m/s
L＝4.8m。
Calculate theoretical value Q=4226.
Detect through Shanghai City Weights and Measures Bureau, the average link code number that the link code digital display shows in the belted electronic balance link code device machine is 4260, and with theoretical value error 34, error rate is in 7 ‰, and the standard less than 1% reaches actual request for utilization.
Therefore, the utility model is derived the mathematical model of belted electronic balance link code device metering coal, by measuring the theoretical link code number that some critical data can manual calculations goes out the coal that weighs in the unit interval.By contrasting the error of theoretical link code number and actual link code number, can determine whether whole belted electronic balance link code device link code system is accurate, whether has situations such as peripheral fault.By regulating materials calibration number in the intelligent integrator, control actual link code number near theoretical link code number, reach the purpose that replaces materials calibration verification belted electronic balance link code device.
Claims (4)
1. a belt conveyer scale link code device comprises belt (1), and electronic crane scale (3) is characterized in that: set up below the described electronic crane scale (3) and load snubber assembly (4).
2. belt conveyer scale link code device according to claim 1, it is characterized in that: described loading snubber assembly (4) comprises cylindrical shell (6), pitch brace (7), stage clip (8), pitch brace (7) is housed in the cylindrical shell (6), between the piston lower surface of pitch brace (7) and the upper end, cylindrical shell (6) bottom stage clip (8) is housed, cylindrical shell (6) top is provided with connecting screw rod (9), and pitch brace (7) lower end is provided with abutment ring.
3. belt conveyer scale link code device according to claim 1 is characterized in that: described loading snubber assembly (4) is connected with the hook screw rod of setting nut (5) with electronic crane scale (3) lower end by the connecting screw rod (9) on cylindrical shell (6) top.
4. belt conveyer scale link code device according to claim 3, it is characterized in that: described setting nut (5) two ends are respectively equipped with positive and negative screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684662 CN203177935U (en) | 2012-12-11 | 2012-12-11 | Weight hanging device for belt scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684662 CN203177935U (en) | 2012-12-11 | 2012-12-11 | Weight hanging device for belt scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177935U true CN203177935U (en) | 2013-09-04 |
Family
ID=49074618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684662 Expired - Fee Related CN203177935U (en) | 2012-12-11 | 2012-12-11 | Weight hanging device for belt scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830953A (en) * | 2017-12-08 | 2018-03-23 | 中水北方勘测设计研究有限责任公司 | Internal hanging type automatic weight loading device |
-
2012
- 2012-12-11 CN CN 201220684662 patent/CN203177935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830953A (en) * | 2017-12-08 | 2018-03-23 | 中水北方勘测设计研究有限责任公司 | Internal hanging type automatic weight loading device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20161211 |