CN206068723U - A kind of sludge scraper protective device - Google Patents
A kind of sludge scraper protective device Download PDFInfo
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- CN206068723U CN206068723U CN201620954278.7U CN201620954278U CN206068723U CN 206068723 U CN206068723 U CN 206068723U CN 201620954278 U CN201620954278 U CN 201620954278U CN 206068723 U CN206068723 U CN 206068723U
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Abstract
A kind of sludge scraper protective device, mud scraper motor drive minor sprocket, minor sprocket Jing driving chains to reach big sprocket wheel Jing after reductor deceleration, between the drive sprocket and main drive shaft of mud scraper arrange safety pin：Location-plate is installed on main drive shaft, fixed with steel pin between location-plate and main drive shaft, safety pin is set between location-plate and big sprocket wheel, the torsion that fractures of safety pin is less than the acrotorque limit that can bear of main drive shaft, when big sprocket wheel is unable to driven main shaft, safety pin deformation is set between location-plate and big sprocket wheel or is fractureed；Electronic proximity switch is provided with, on the tensioner of the driving chain that electronic proximity switch is fixed between big minor sprocket, locating rod is arranged on location-plate, for improving mud scraper driving bearing safety, strengthens the service life of equipment.
Description
Technical field：
Treatment of Industrial Water industry, in system process such as mechanical accelerating purifying pool, sludge concentration tanks, using works such as coagulating sedimentation
When solid water is carried out separating treatment by skill, use some heavy-load type agitating devices more.
Background technology：
In traditional water treatment field, mechanical accelerating purifying pool, sludge condensation pool process are in industry in current industrial production field
The water treatment field such as feedwater, Treated sewage reusing, treating nature water, sewage disposal have been widely used and popular.And above-mentioned work
Process system can all be applied to mud scraper in production procedure.When mud scraper runs, driving means provide power, through change speed gear box,
Drive sprocket operating is driven, continuous rotary motion is made with certain speed so as to drive chain and scraper plate, constantly by bottom of pond
Precipitating sludge scrapes collection in mud-collecting slot, forms a closed circulation course of work.
Mud scraper equipment is mainly by motor driver, driving chain, swelling device, drive sprocket, main drive shaft, driven
Axle, mud-scraping apparatus are the parts such as cleaning shoe, bracket, baffle plate composition.
Mud scraper equipment operation principle：It is, by motor driver, then to drive mud scraper in pond central rotation, raw water
After sedimentation tank precipitation, then supernatant will be discharged from overflow weir, and be deposited in those sludge of mud scraper bottom, can scraped
Under the promotion of plate, then finally will will pass through discharge pipeline along bottom of pond towards the central interior diffluence of that mud-collecting slot
Discharge it and；And after some scum silica frost for swimming in precipitation pool surface will also pass through a series of process, finally also can be by row
In addition to cylinder discharges pond.
, during due to intermittent production stoppage in transit or plant maintenance, the sludge in mud-collecting slot can nature heap for mud scraper equipment
Deposition is formed sediment, and starts mud scraper after resuming production, and cleaning shoe can be by from the larger resistance for piling up sludge in start of run.Tradition
It is only limitted to thermorelay is arranged in motor control loop to protect front-end driven equipment during device fabrication.And the operation of mud scraper
Control is run using the start and stop of Frequency Converter Control equipment, is set by converter parameter, is integrated mud scraper Rated motor parameter,
Setting excessively stream, overload protection value；Chain is made to possess suitable tension force in transmission process by mechanical tensioner, it is to avoid to beat
The mechanical damage of sliding, chain releasing abrasion, strengthens service life of equipment.This control protected mode can only be to leading portion device drives
Device is effectively protected, and back segment is due to mechanical bearing and scrapes that plate bulk is larger, often with scraping amount of sludge in mud groove
Increase or it is dry put, equipment resistance for running in revolution operation is greatly improved.When motor driver is delivered power to
Sprocket wheel drives main drive shaft, when the torsion that main drive shaft is subject to cannot overcome sludge resistance, causes motor and rotating link chain still can
Drive by force and main drive shaft, bearing all affords excessive torsion in start-up course up and down, cause bearing curling or fracture,
Which is recorded a demerit and causes the damage of unrepairable.This utility model on the basis of former mud scraper equipment traditional control method needs to increase
A kind of protection device.
Utility model content：
This utility model purpose is to solve the problems, such as prior art, when the torsion that main drive shaft is subject to cannot overcome
During sludge resistance, it is not result in that motor and rotating link chain still can be driven with main drive shaft by force and causes bearing distortion to fracture.Especially
Which is the construction featuress based on mud scraper equipment, is close to by safety pin and electronics are arranged between drive sprocket and main drive shaft
The mode of switch, overcomes motor maximum output torque unmatched by limit torsion with drive shaft by the action of safety pin
Problem, causes proximity switch action to carry out controlled motor and stops transport in time and report to the police, and then prevents from driving overload to cause mud scraper to rotate
Mechanical failure.
Technical solutions of the utility model are：A kind of sludge scraper protective device, it is characterised in that：Mud scraper motor Jing subtracts
Fast machine drives minor sprocket, minor sprocket Jing driving chains to reach big sprocket wheel after slowing down, in the drive sprocket and main drive shaft of mud scraper
Between safety pin is set：Location-plate is installed on main drive shaft, is fixed with steel pin between location-plate and main drive shaft, location-plate with
Safety pin is set between big sprocket wheel, and the torsion that fractures of safety pin is less than the acrotorque limit that can bear of main drive shaft,
When big sprocket wheel is unable to driven main shaft, safety pin deformation is set between location-plate and big sprocket wheel or is fractureed；
Be provided with electronic proximity switch, the tensioner of the driving chain that electronic proximity switch is fixed between big minor sprocket it
On, locating rod is arranged on location-plate, and on tensioner, electronic proximity switch position is close to for electronics with the distance of locating rod
The distance of reaction of switch；When safety pin fractures or deforms, location-plate occurs to depart from big sprocket wheel disk, relies on produced by torsion
There is nature displacement with proximity switch in the inertia of tangential direction, locating rod, proximity switch sensing contact action sends switching value and closes
Conjunction/cut-off signal.Electronic proximity switch is Hall effect transducer.
Proximity switch contact point signal is connected into converter relay input terminal, by equipment converter intrinsic parameter, will be connect
Point action signal shuts down the trigger of control as converter, arranges overload protection value with reference to Rated motor current parameters, most
Strengthen equipment general safety performance eventually.Heavily loaded mud scraper is overcome by arranging a kind of protection device in actuating device back segment
Motor maximum output torque bears the unmatched problem of limit torsion with actuating device, carrys out controlled motor and stops transport in time and report
It is alert, and then prevent from driving overload to cause mud scraper to rotate mechanical failure.
In the mud scraper equipment of (heavy duty), by Frequency Converter Control motor, driving motor supplies power Jing change speed gear box/deceleration
Machine drives minor sprocket disk, driving force Jing driving chains to reach big sprocket wheel disk after slowing down, big sprocket wheel passes through safety pin with main drive shaft
It is fixedly connected, main drive shaft connection mud scraper realizes gyration, arranges electronic proximity switch.By safety pin action and electronics
The signal transmission of proximity switch realizes the mechanical protection to mud scraper driving member.
Beneficial effect：During this utility model scheme application, it is the construction featuress based on mud scraper equipment, by drive chain
The mode of safety pin and electronic proximity switch is set between wheel and main drive shaft, and then prevent from driving overload to cause mud scraper to turn
Dynamic mechanical failure.When the torsion that main drive shaft is subject to cannot overcome sludge resistance, it is not result in that motor and rotating link chain still can
Drive with main drive shaft and cause bearing distortion to fracture by force.Motor maximum output torque is overcome by the action of safety pin
The unmatched problem of limit torsion, triggering proximity switch action is received to carry out controlled motor and stop transport in time and report to the police with drive shaft.
Description of the drawings：
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model top view.
Specific embodiment：
This utility model is the form and function for illustrating protection device, there is provided schematic diagram below, is schemed for explaining this explanation
Book, does not constitute the improper restriction to this specification.
The structure of this utility model protection device is described further with reference to accompanying drawing 1：
As shown in drawings, location-plate as shown in the figure is customized on main drive shaft, it is solid with steel pin between location-plate and main drive shaft
It is fixed, before location-plate and big sprocket wheel, safety pin is set, the torsion that fractures of safety pin is less than can bear most for main drive shaft
The big torsion limit, it is ensured that when the mud baffle apparatus of scraping under which are being subject to larger resistance, when main drive shaft cannot bear, safety pin
Fracture or deform.
On the tensioner of the driving-chain rule that electronic proximity switch is fixed between size chain sprocket, when safety pin is rolled over
Disconnected or when deforming, location-plate occurs to depart from big sprocket wheel disk, relies on the inertia of the tangential direction produced by torsion, locating rod with connect
There is nature displacement in nearly switch, proximity switch sensing contact action sends switching value closure/cut-off signal.
Proximity switch contact point signal is connected into converter relay input terminal, by equipment converter intrinsic parameter, will be connect
Point action signal shuts down the trigger of control as converter, arranges overload protection value with reference to Rated motor current parameters, most
Strengthen equipment general safety performance eventually.
As a example by using AB converters as control converter, as driving equipment is heavy-load type drive apparatus, from ABB brands
Possess the 22C Series Frequency Converters of permanent torque control, as the location-plate for connecting alignment pin and main drive shaft is metal material, can be with
The magnetic approach switch for selecting price less expensive or Hall-type proximity switch, the Frequency Converter Control schematic diagram of electric loop is as schemed
Shown in 2：Proximity switch trigger is connected in parallel in converter external control stop signal loop, signal is directly transmitted by XOR
In to distant place stored program controlled PLC/DCS systems, interlock shutdown instruction is exported by logical judgment；Simultaneously proximity switch signal is connect
Enter the warning of switch board panel ledss.When equipment operation is to receive this road alarm and protection signal, equipment is out of service in time same
When lock-in control do not allow to be again started up.Equipment protection safety pin is checked by operation maintenance personnel, use after replacing, is exercised again.This protection
Measure effectively avoid change or keep in repair driving bearing spent by larger cost, also can substantial amounts of shortening maintenance time, carry
High Operating ettectiveness.
Claims (2)
1. a kind of sludge scraper protective device, it is characterised in that：Mud scraper motor drives minor sprocket Jing after reductor deceleration, little
Sprocket wheel Jing driving chains reach big sprocket wheel, between the drive sprocket and main drive shaft of mud scraper arrange safety pin：In main driving
Location-plate is installed on axle, is fixed with steel pin between location-plate and main drive shaft, safety pin is set between location-plate and big sprocket wheel, pacify
The torsion that fractures of full pin is less than the acrotorque limit that can bear of main drive shaft, when big sprocket wheel is unable to driven main shaft
When, safety pin deformation is set between location-plate and big sprocket wheel or is fractureed.
2. sludge scraper protective device according to claim 1, it is characterised in that：Electronic proximity switch is provided with, electronics is close to
On the tensioner of the driving chain that switch is fixed between big minor sprocket, locating rod is arranged on location-plate, tensioner
On electronic proximity switch position and locating rod distance for electronic proximity switch distance of reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954278.7U CN206068723U (en) | 2016-08-26 | 2016-08-26 | A kind of sludge scraper protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954278.7U CN206068723U (en) | 2016-08-26 | 2016-08-26 | A kind of sludge scraper protective device |
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| Publication Number | Publication Date |
|---|---|
| CN206068723U true CN206068723U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620954278.7U Active CN206068723U (en) | 2016-08-26 | 2016-08-26 | A kind of sludge scraper protective device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206068723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-08-26 CN CN201620954278.7U patent/CN206068723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 210000 no.1800, Chengxin Avenue, Jiangning Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee after: Nanjing Zhongdian Intelligent Technology Co., Ltd Address before: 211102, integrity road 1800, Jiangning Development Zone, Jiangsu, Nanjing Patentee before: Nanjing Zhongdian Automation Co., Ltd. |
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| CP03 | Change of name, title or address |