CN202382833U - Speed governing metering screw weighing device - Google Patents

Speed governing metering screw weighing device Download PDF

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Publication number
CN202382833U
CN202382833U CN2011205503371U CN201120550337U CN202382833U CN 202382833 U CN202382833 U CN 202382833U CN 2011205503371 U CN2011205503371 U CN 2011205503371U CN 201120550337 U CN201120550337 U CN 201120550337U CN 202382833 U CN202382833 U CN 202382833U
Authority
CN
China
Prior art keywords
weighing device
housing
speed governing
metering screw
base
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.)
Expired - Fee Related
Application number
CN2011205503371U
Other languages
Chinese (zh)
Inventor
冯波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEIFANG LONGJI BUILDING MATERIALS EQUIPMENT CO Ltd
Original Assignee
WEIFANG LONGJI BUILDING MATERIALS EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WEIFANG LONGJI BUILDING MATERIALS EQUIPMENT CO Ltd filed Critical WEIFANG LONGJI BUILDING MATERIALS EQUIPMENT CO Ltd
Priority to CN2011205503371U priority Critical patent/CN202382833U/en
Application granted granted Critical
Publication of CN202382833U publication Critical patent/CN202382833U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A speed governing metering screw weighing device comprises a base and a screw conveyor installed on the base, wherein the screw conveyor includes a casing and a revolving shaft, the revolving shaft is installed inside the casing in a rotating mode and provided with screw blades, one end of the revolving shaft is dynamically connected with a driving motor which is provided with a variable frequency controller, a feed inlet and a feed outlet are arranged on the casing, a gantry support is arranged on the base, a tension sensor is installed on the gantry support, a pulling end of the tension sensor is arranged at one end of the feed outlet of the screw conveyor casing, a revolution speed sensor is arranged on the driving motor, and the tension sensor and the revolution speed sensor are both electrically connected to a control instrument. The speed governing metering screw weighing device can accurately measure a conveying speed of materials, and then can perform a feedback to regulate the driving motor, thereby the degree of automation is improved and the maintenance is convenient.

Description

A kind of speed governing metering screw weighing device
Technical field
The utility model relates to a kind of weighing device, is specifically related to a kind of speed governing metering screw weighing device.
Background technology
In industries such as cement, chemical industry, metallurgy, pottery, grain and transportation, often need multiple powdery, bulk granular material be carried continuously, and in the process of carrying continuously, also need carry out weighing, to realize the rationalization of batching to the material of carrying.
But, existing weighing device generally calculates the transporting velocity of material through the weight of discharging in the weighing certain hour, and then controls material operational throughput within a certain period of time through the control charging rate.Also therefore make the weighing device of traditional structure exist the adjustment signal feedback untimely, the transporting velocity of material is adjusted problems such as not accurate enough.
The utility model content
The utility model technical matters to be solved provides a kind of speed governing metering screw weighing device, and the transporting velocity that it can accurately adjust material strengthens its accuracy, thereby eliminates defective in the above-mentioned background technology.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of speed governing metering screw weighing device; Comprise base and be installed on the spiral conveyer on the base, this spiral conveyer comprises housing and the rotating shaft that is rotatably installed in enclosure interior, and this rotating shaft is provided with helical blade; And an end power of rotating shaft connects the drive motor that has frequency-variable controller; Said housing is provided with charging aperture and discharging opening, it is characterized in that, gantry support also is installed on the said base; On this gantry support pulling force sensor is installed, discharging opening one end that is arranged at the spiral conveyer housing is held in pulling and supporting of this pulling force sensor; Said drive motor is provided with speed probe; Said pulling force sensor and speed probe all are electrically coupled on the control instrument.
As a kind of improvement, the two ends of said rotating shaft utilize flange to be installed in the said housing.Based on this structure, dismantle flange after, can extract the whole piece spiral out, can simply change rotating shaft and helical blade.
As a kind of improvement, all be connected with soft joint on said charging aperture and the discharging opening.Based on this structure, can reduce the weight error that other equipment that charging aperture is connected with discharging opening cause, improved weighing precision.
As a kind of improvement, said housing is provided with the desilting mouth in the bottom of charging aperture.Based on this structure, can effectively prevent the phenomenon that spiral conveyer blocks easily.
The principle of work of the utility model is following: when work, material gets in the housing, under the drive of drive motor from charging aperture; Helical blade can advance from charging aperture material toward the discharging opening place, and makes the data of pulling force sensor collection increase gradually, when discharging opening begins discharging; The signal of pulling force sensor output is steady state value in theory; And in the reality because the influence of various factors, this value is a change value, but can be stabilized in the flow value permissible error of setting in the control instrument.At this moment, the instantaneous mass amount Qt through housing is determined by following formula:
Qt=k·qt·Vt(t/h)
Wherein:
The specific electric load of material in the Qt----housing, kg/m;
The Vt----material is instantaneous flowing velocity in spiral, m/s;
The k----coefficient (debugging confirm constant) of weighing.
The data of pulling force sensor output are exactly the typical value of weight of material in the housing, and it is transported to control instrument, by the loss of control instrument according to unit interval inner housing weight of material; Calculate instantaneous delivery, the transporting velocity of material just, again with control instrument in setting value compare; As conditioning signal, simultaneously, control instrument also can be handled the data of speed probe collection with its deviate; Make rational regulation and control; And adjustment signal is delivered to frequency-variable controller, the controlling and driving rotating speed of motor also is the feeding speed of helical blade.
Owing to adopted technique scheme, the utlity model has following beneficial effect:
The metering screw weighing device that the utility model provides; Not only can gather the transporting velocity of material in the course of conveying; And can the setting value of this velocity amplitude and control instrument be compared; Simultaneously, can also referenced drive rotating speed of motor value, thus the rotating speed of drive motor is made more reasonably regulation and control.
The utility model can accurately be measured the transporting velocity of material, and the feedback regulation drive motor, has improved automaticity, and easy to maintenance.
Description of drawings
Accompanying drawing is the utility model structural representation;
Among the figure: 1. base, 2. spiral conveyer, 3. housing, 4. rotating shaft, 5. helical blade; 6. drive motor, 7. frequency-variable controller, 8. charging aperture, 9. discharging opening, 10. gantry support; 11. pulling force sensor, 12. wire rope, 13. speed probes, 14. control instruments, 15. first flanges; 16. second flange, 17. first soft joints, 18. second soft joints, 19. desilting mouths.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Shown in accompanying drawing; A kind of speed governing metering screw weighing device comprises base 1 and is installed on the spiral conveyer 2 on the base 1 that this spiral conveyer 2 comprises housing 3 and the rotating shaft 4 that is rotatably installed in housing 3 inside; This rotating shaft 4 is provided with helical blade 5; And an end power of rotating shaft 4 connects the drive motor 6 that has frequency-variable controller 7, and said housing 3 is provided with charging aperture 8 and discharging opening 9, on the said base 1 gantry support 10 is installed also; On this gantry support 10 pulling force sensor 11 is installed, the end that pulls and supports of this pulling force sensor 11 utilizes wire rope 12 to be arranged at discharging opening 9 one ends of housing 3; Said drive motor 6 is provided with speed probe 13; Said pulling force sensor 11 all is electrically coupled on the control instrument 14 with speed probe 13.
In the present embodiment, the two ends of said rotating shaft 4 utilize first flange 15 and second flange 16 to be installed in the said housing 3.Based on this structure, dismantle first flange 15 and second flange 16 after, can extract the whole piece spiral out, can simply change rotating shaft 4 and helical blade 5.
Cause weighting error in order to prevent that other equipment that charging aperture 8 is connected with discharging opening 9 directly are pressed onto on the spiral conveyer 2, present embodiment is provided with the first soft joint 17 on charging aperture 8, on discharging opening 9, be provided with the second soft joint 18; Said housing 3 is provided with desilting mouth 19 in the bottom of charging aperture 8, can effectively prevent the phenomenon that spiral conveyer 2 blocks easily.
The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection domain of the utility model.

Claims (4)

1. speed governing metering screw weighing device; Comprise base and be installed on the spiral conveyer on the base; This spiral conveyer comprises housing and the rotating shaft that is rotatably installed in enclosure interior, and this rotating shaft is provided with helical blade, and an end power of rotating shaft connects the drive motor that has frequency-variable controller; Said housing is provided with charging aperture and discharging opening; It is characterized in that: gantry support also is installed on the said base, on this gantry support pulling force sensor is installed, discharging opening one end that is arranged at the spiral conveyer housing is held in pulling and supporting of this pulling force sensor; Said drive motor is provided with speed probe; Said pulling force sensor and speed probe all are electrically coupled on the control instrument.
2. a kind of speed governing metering screw weighing device according to claim 1, it is characterized in that: the two ends of said rotating shaft utilize flange to be installed in the said housing.
3. a kind of speed governing metering screw weighing device according to claim 1 is characterized in that: all be connected with soft joint on said charging aperture and the discharging opening.
4. a kind of speed governing metering screw weighing device according to claim 1, it is characterized in that: said housing is provided with the desilting mouth in the bottom of charging aperture.
CN2011205503371U 2011-12-24 2011-12-24 Speed governing metering screw weighing device Expired - Fee Related CN202382833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205503371U CN202382833U (en) 2011-12-24 2011-12-24 Speed governing metering screw weighing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205503371U CN202382833U (en) 2011-12-24 2011-12-24 Speed governing metering screw weighing device

Publications (1)

Publication Number Publication Date
CN202382833U true CN202382833U (en) 2012-08-15

Family

ID=46631328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205503371U Expired - Fee Related CN202382833U (en) 2011-12-24 2011-12-24 Speed governing metering screw weighing device

Country Status (1)

Country Link
CN (1) CN202382833U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103738684A (en) * 2013-12-13 2014-04-23 云南中烟昆船瑞升科技有限公司 Special U-shaped spiral weighting feeding machine for tobacco sheet
CN103879743A (en) * 2014-02-14 2014-06-25 江苏维尔电气有限公司 Continuous dynamic weighing and measuring spiral conveying device
CN105524641A (en) * 2014-09-30 2016-04-27 上海梅山钢铁股份有限公司 Tar residue adding device and control method in coking coal
CN109466899A (en) * 2018-11-15 2019-03-15 找料(深圳)供应链科技股份有限公司 A kind of feeding device and its method of band charging speed controlling function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103738684A (en) * 2013-12-13 2014-04-23 云南中烟昆船瑞升科技有限公司 Special U-shaped spiral weighting feeding machine for tobacco sheet
CN103879743A (en) * 2014-02-14 2014-06-25 江苏维尔电气有限公司 Continuous dynamic weighing and measuring spiral conveying device
CN105524641A (en) * 2014-09-30 2016-04-27 上海梅山钢铁股份有限公司 Tar residue adding device and control method in coking coal
CN105524641B (en) * 2014-09-30 2018-05-18 上海梅山钢铁股份有限公司 A kind of adding set and control method that tar slag is added in coking coal
CN109466899A (en) * 2018-11-15 2019-03-15 找料(深圳)供应链科技股份有限公司 A kind of feeding device and its method of band charging speed controlling function
CN109466899B (en) * 2018-11-15 2021-03-23 找料(深圳)供应链科技股份有限公司 Feeding device with feeding speed control function and method thereof

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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

Granted publication date: 20120815

Termination date: 20141224

EXPY Termination of patent right or utility model