CN101693154A - Overload protective device for central-transmission mud scraper - Google Patents
Overload protective device for central-transmission mud scraper Download PDFInfo
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- CN101693154A CN101693154A CN200910210145A CN200910210145A CN101693154A CN 101693154 A CN101693154 A CN 101693154A CN 200910210145 A CN200910210145 A CN 200910210145A CN 200910210145 A CN200910210145 A CN 200910210145A CN 101693154 A CN101693154 A CN 101693154A
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- torque
- speed changer
- pivoting support
- mud scraper
- measuring apparatus
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Abstract
The invention relates to an overload protective device for a central transmission mud scraper. The overload protective device can prevent torques from overloading by means of monitoring torque values and aims at avoiding damaging a transmission mechanism due to overlarge load. To realize the purpose, a torque measuring device (4) is installed between a motor (6) and a speed changer (3) to transmit torque signals to a programmable controller (5) to control opening and closing of the motor (6). When in work, a working resistance torque is first transmitted to a slewing bearing (1), then transmitted to the speed changer (3) by the slewing bearing (1), and finally transmitted to the torque measuring device (4). Further, the resistance torque is outputted by a torque sensor (42) to the programmable controller (5); the motor (6) is controlled by setting rating load of the speed changer (3) inside the programmable controller (5), thereby preventing a driving device from overloading and protecting the mud scraper. Besides, the torque sensor (42) is connected with the speed changer (3) via involute spline pairs (44), and power is transmitted stably.
Description
The applicant on the same day with regard to same innovation and creation application utility model patent.
Technical field
The present invention relates to a kind of overload protection arrangement, particularly a kind of center transmission mud scraper overload protection arrangement.
Background technology
Develop rapidly along with China's industry and city; the generation of waste water grows with each passing day; center transmission mud scraper is a kind of important main equipment in waste water, the coal slime of municipal administration, sewage treatment plant, coal mining enterprise, iron and steel enterprise etc. are handled; the mode of this kind equipment overload protection in service; general pin or the spacing mud scraper overload protection that carries out of spring of adopting; efficient is low, and is not accurate enough, also inconvenient.
CN2527559Y discloses a kind of torque protection device of crossing of inhaling mud scraper, and an elastomer is installed on driving arm and variable-speed motor housing is crossed torque protection device.When inhaling mud scraper work, the walking steel wheel produces a reaction force to variable-speed motor, controls elastomeric decrement.When the suction mud scraper was subjected to extraordinary load action, the elastomer distortion had surpassed the position of the switch, and gauge tap is cut off the electricity supply, and plays a protective role.But efficient is low also accurate inadequately.
Summary of the invention
The purpose of this invention is to provide a kind of mud scraper overload protection arrangement, this device utilizes Programmable Logic Controller and surveys moment of torsion and passes device, and automation is completely controlled, and improves the accuracy of operational efficiency and overload prevention greatly.
The present invention finishes by following technical scheme.The present invention is a kind of mud scraper overload protection arrangement; comprise the motor that has speed changer; comprise Programmable Logic Controller, torque-measuring apparatus; on the power transmission shaft of the outputting power of described motor, yielding coupling is housed and connects torque sensor; the input of described Programmable Logic Controller is electrically connected with described torque sensor; output is electrically connected with the control end of described motor electricity, and described torque sensor is connected by involute spline is secondary with transmission output shaft.Speed changer links to each other with pivoting support, carries out work by final drive shaft outputting power in the pivoting support.
On the basis of the above, this device also comprises pivoting support and bracing frame, and bracing frame is fixed together speed changer and pivoting support shell.Pivoting support comprises pivoting support shell, gear wheel and final drive shaft, and the pinion that is contained in the pivoting support shell on the gear shaft is meshed with gear wheel, and gear wheel links to each other with final drive shaft, and the final drive shaft outputting power carries out work.
The present invention outputs to Programmable Logic Controller by torque-measuring apparatus with torque signal, accurately obtain the instantaneous torque value of bearing of mud scraper drive unit turning cylinder, open by the signal control motor that torque sensor provides, prevent the drive unit overload, with the operation of control mud scraper.
During work; the resistive torque of the mud-scraping apparatus of mud scraper is delivered to pivoting support earlier; pivoting support is delivered to speed changer again; be delivered to torque-measuring apparatus then; resistive torque outputs to Programmable Logic Controller PLC by torque sensor, by set the rated load of speed changer in Programmable Logic Controller PLC, controls motor; and then prevent the drive unit overload, protect mud scraper.
Torque sensor is connected by involute spline is secondary with speed changer, can utilize Self-centering Action of Involute Splines, makes the mud scraper transmission of power stable, and running steadily.
In sum, the present invention is owing to adopted Programmable Logic Controller and torque sensor, and automation is completely controlled, and improves the accuracy of operational efficiency and overload prevention greatly.And in the middle of torque sensor and speed changer, adopted the involute spline pair, made that also transmission of power is steady.This device is suitable for sewage disposal and uses.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Code name among the figure
1 pivoting support, 11 final drive shafts, 12 gear wheels, 13 pivoting support shells
2 gear shafts, 21 pinions
3 speed changers
4 torque-measuring apparatus, 41 torque-measuring apparatus shells, 42 torque sensors
43 flexible clutch, 44 involute spline pairs
5 Programmable Logic Controllers (PLC), 6 motors, 7 bracing frames
The specific embodiment
Be illustrated in figure 1 as a kind of mud scraper overload protection arrangement; comprise the motor 6 that has speed changer 3; also comprise Programmable Logic Controller 5, torque-measuring apparatus 4; described torque-measuring apparatus 4 comprises torque sensor 42, torque-measuring apparatus shell 41 and flexible clutch 43; described motor 6 is connected by described flexible clutch 43 with torque sensor 42; can bear certain axial displacement; torque sensor 42 is connected by involute spline secondary 44 with speed changer 3 then; can utilize Self-centering Action of Involute Splines, make transmission of power steady.Described Programmable Logic Controller 5 is electrically connected with described torque sensor 42, and output is done with the control end of described motor 6 and is electrically connected.
On the basis of the above, this mud scraper device also comprises pivoting support 1 and bracing frame 7.Bracing frame 7 is fixed together speed changer 3 and pivoting support shell 13.Pivoting support 1 comprises pivoting support housing 13, gear wheel 12 and final drive shaft 11, and the pinion 21 that is contained in pivoting support 1 on the gear shaft 2 is meshed with gear wheel 12, and gear wheel 12 links to each other with final drive shaft 11, and final drive shaft 11 outputting powers carry out work.
Among the above embodiment, the model of Programmable Logic Controller 1 preferably is adopted as the S7-300PLC that Siemens (China) Co Ltd produces, and the model of torque sensor 42 is preferably the ZRN506 that energy instrumental technique Co., Ltd of Beijing China and Sweden produces.Flexible clutch 43 is preferably the LT3 of the three brilliant scientific and technological Group Co.,Ltd that start an undertaking.
During work; the working resistance moment of torsion is delivered to pivoting support 1 earlier; pivoting support 1 is delivered to speed changer 3 again; be delivered to torque-measuring apparatus 4 then; resistive torque outputs to Programmable Logic Controller (PLC) 5 by torque sensor 42, by set the rated load of speed changer 3 in Programmable Logic Controller (PLC) 5, controls motor 6; and then prevent the drive unit overload, protect mud scraper.
The above case only is a preferable case study on implementation of the present invention, is not to limit practical range of the present invention with this, so any equivalence that all shapes according to the present invention, structure and principle are done changes, all should be covered by in protection scope of the present invention.
Claims (4)
1. center transmission mud scraper overload protection arrangement; comprise: motor (6), speed changer (3), pivoting support (1) and bracing frame (7); it is characterized in that: also comprise torque-measuring apparatus (4) and Programmable Logic Controller (5); motor (6) is connected by torque-measuring apparatus (4) with speed changer (3); torque-measuring apparatus (4) comprises torque sensor (42) and torque-measuring apparatus shell (41), and the output gear shaft (2) of described speed changer (3) is connected with pivoting support (1).The working resistance moment of torsion is delivered to pivoting support (1) earlier during work; pivoting support (1) is delivered to speed changer (3) again; be delivered to torque-measuring apparatus (4) then; resistive torque outputs to Programmable Logic Controller (5) by torque sensor (42); by in Programmable Logic Controller (5), setting the rated load of speed changer (3); control motor (6), and then prevent the drive unit overload, the protection mud scraper.
2. center transmission mud scraper overload protection arrangement as claimed in claim 1; it is characterized in that: described pivoting support (1) comprises pivoting support shell (13), gear wheel (12) and final drive shaft (11); the gear wheel (12) that is meshed with pinion (21) on the described gear shaft (2) is housed in described pivoting support shell (13); gear wheel (12) links to each other with final drive shaft (11), and described bracing frame (7) is fixed together described speed changer (3) and described pivoting support shell (13).
3. as the described center transmission of one of claim 1-2 mud scraper overload protection arrangement; it is characterized in that: described torque-measuring apparatus (4) also comprises torque-measuring apparatus shell (41) and flexible clutch (43), and described motor (6) links to each other by flexible clutch (43) with described torque sensor (42).
4. as the described center transmission of one of claim 1-3 mud scraper overload protection arrangement, it is characterized in that: described torque sensor (42) is connected by involute spline pair (44) with speed changer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210145A CN101693154A (en) | 2009-10-29 | 2009-10-29 | Overload protective device for central-transmission mud scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210145A CN101693154A (en) | 2009-10-29 | 2009-10-29 | Overload protective device for central-transmission mud scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101693154A true CN101693154A (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910210145A Pending CN101693154A (en) | 2009-10-29 | 2009-10-29 | Overload protective device for central-transmission mud scraper |
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| CN (1) | CN101693154A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166723A (en) * | 2011-03-29 | 2011-08-31 | 肇庆市凯龙数控科技有限公司 | Torque overload monitoring device |
| CN103157306A (en) * | 2011-12-08 | 2013-06-19 | 中铝国际技术发展有限公司 | Multi-point drive settling tank |
| CN105817059A (en) * | 2016-05-18 | 2016-08-03 | 国美（天津）水技术工程有限公司 | Sludge disposal system of secondary sedimentation tank |
| CN107715516A (en) * | 2017-11-27 | 2018-02-23 | 山东赛恩环保设备有限公司 | A kind of overload of mud scraper sprocket wheel, unbalanced load protection device |
| CN113117391A (en) * | 2020-01-15 | 2021-07-16 | 上海城投污水处理有限公司 | Device and method for monitoring rotation of output shaft of center-driven mud scraper |
-
2009
- 2009-10-29 CN CN200910210145A patent/CN101693154A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166723A (en) * | 2011-03-29 | 2011-08-31 | 肇庆市凯龙数控科技有限公司 | Torque overload monitoring device |
| CN103157306A (en) * | 2011-12-08 | 2013-06-19 | 中铝国际技术发展有限公司 | Multi-point drive settling tank |
| CN105817059A (en) * | 2016-05-18 | 2016-08-03 | 国美（天津）水技术工程有限公司 | Sludge disposal system of secondary sedimentation tank |
| CN105817059B (en) * | 2016-05-18 | 2018-05-08 | 国美（天津）水技术工程有限公司 | The sludge treating system of secondary settling tank |
| CN107715516A (en) * | 2017-11-27 | 2018-02-23 | 山东赛恩环保设备有限公司 | A kind of overload of mud scraper sprocket wheel, unbalanced load protection device |
| CN113117391A (en) * | 2020-01-15 | 2021-07-16 | 上海城投污水处理有限公司 | Device and method for monitoring rotation of output shaft of center-driven mud scraper |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100414 |