CN100375814C - Method for sensing break of roller driving belt - Google Patents
Method for sensing break of roller driving belt Download PDFInfo
- Publication number
- CN100375814C CN100375814C CNB021242402A CN02124240A CN100375814C CN 100375814 C CN100375814 C CN 100375814C CN B021242402 A CNB021242402 A CN B021242402A CN 02124240 A CN02124240 A CN 02124240A CN 100375814 C CN100375814 C CN 100375814C
- Authority
- CN
- China
- Prior art keywords
- driving belt
- motor
- rotary speed
- air
- rotating speed
- 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
Links
Images
Abstract
The present invention relates to a sensing method for the fracture of roller transmission belts. The method comprises the following stages: the maximum rotating speed of driving motors is set under the state of the normal connection of transmission belts; the current rotating speed caused by the driving of driving motors is detected; the maximum rotating speed and the detected rotating speed are compared for judging whether transmission belts are broken off; when the rotating speed of driving motors is higher than the set rotating speed, transmission belts are sensed that transmission belts are broken off. The present invention removes mechanical type structures used for sensing the fracture of transmission belts, has an effect of reducing product cost and causes users of products to satisfy.
Description
Technical field
The present invention relates to the drying machine field.
Background technology
Fig. 1 is the exploded perspective view of the primary structure of general drying machine.According to diagram, casing (not shown) inside that constitutes the drying machine outward appearance is provided with cylinder 1, cylinder 1 is horizontal direction and both-side opening, there is the transmission trough of belt 2 of driving at the middle part of cylinder outer circumference surface, there are with drive source to be connected the driving belt that drives a plurality of dividing plates 6 of the dry object of drying box 5 inside of overturning when there is rotation cylinder 1 inside in the transmission trough of belt 2.
Be provided with anterior end cap 7 and rear portion end cap 9 on the front-end and back-end of cylinder 1 separately.The front-end and back-end of anterior end cap 7 and rear portion end cap 9 closed cylinders 1, for prevent between anterior end cap 7 and the cylinder 1 and rear portion end cap 9 and cylinder 1 between leak and be provided with baffle ring 10, a plurality of rollers of supporting drum 1 are arranged on the corresponding position of front-end and back-end of cylinder.
The outside and the inner through hole that are communicated with drying box 5 are arranged in the anterior end cap 7.Through hole is opened and closed by door (not shown).Be provided with air supply pipe 12 in the rear portion end cap 9, air supply pipe 12 is the passages to the internal feed hot blast of drying box 5, the internal communication of air supply pipe 12 and drying box 5.
The lower end of anterior end cap 7 through holes has from the outlet assembly 13 of drying box 5 vent the air overboards, be provided with lint filter 14 in the outlet assembly 13, lint filter 14 filters out the foreign matter (for example: line bits or dust) that mixes from the air that drying box 5 discharges.
Warm-air pipe 20 is connected with air supply pipe 12, and warm-air pipe 20 has been carried the hot blast of desiccation in the inside of drying box 5, and the mechanism of the generation heat that adds hot-air is arranged in the warm-air pipe 20 for this reason.
That is, the inlet of warm-air pipe 20 is provided with jet for gas 22, and jet for gas 22 ejection coal gas have the valve of controlling gas supply in the jet for gas 22.Symbol 23 is gas pipes among the figure.
Jet for gas 22 and 1 air mixing tube 24 are arranged on the inlet of warm-air pipe 20 and prolong to inside.The porch of mixing tube 24 is in the position corresponding with jet for gas 22, mixes at the coal gas of jet for gas 22 ejections of mixing tube 24 inside and the extraneous air that flows into by mixing tube 24 inlets.The front end of mixing tube 24 is provided with spark plug 26, and spark plug 26 produces the spark of igniting.
The action specification of the general drying machine of said structure is as follows: put in the drying box 5 of cylinder 1 inside and carry out closing the door behind the dry clothing, press Action Button, drive source makes cylinder 1 rotation by the driving belt in the trough of belt.
When motor made the cylinder rotation, whether the rotation of motor rotation aware switch 35 perception motor, and the signal of perception is communicated to control part 30.Control part 30 judges that according to perceptual signal motor whether rotate, supplies hot blast to the inside of cylinder 1 during the normal rotation status of motor.Hot blast feeding is to air supply pipe 12.
That is, coal gas is injected in the inside of mixing tube 24 by jet for gas 22, mixes with the air that inlet by mixing tube 24 enters, and burns by the igniting of spark plug 26 in the outlet of mixing tube 24.Make the air that is fed to air supply pipe 12, raising by temperature in warm-air pipe 20 processes.
The heat that gas-fired produces heats because the attraction that the driving of air blast 17 causes is drawn into the air of warm-air pipe 20 inside and forms hot blast.
Hot blast is transported to the inside of the drying box 5 of cylinder 1 by air supply pipe 12, after hot blast absorbs the moisture that contains in the clothing in the inside of drying box 5, discharging from drying box 5 by outlet assembly 13, is to discharge from drying box 5 by the attraction of air blast 17 by the air that exports assembly 13.The air that outlet assembly 13 is discharged is being considered to be worth doing by filtration dust or line in the process of lint filter 14.
Below, Fig. 2 is the operation principle flow chart that whether fractures for the roller driving belt of perception prior art.
Comprise that the user imports the keyboard input part 30 of laundry working signal, the signal that utilizes keyboard input part 30 to import carries out the Motor Drive portion 60 of drive motor, the power of perception motor is communicated to the driving belt switch 50 that whether fractures of the driving belt of cylinder, control part 40.The transmission of power of motor is arrived the action and driving belt switch 50 interlocks of the pulley of driving belt.
The driving force of motor makes the cylinder rotation by driving belt generally speaking.The transmission of power that produces in the motor is when the driving belt, and pulley is subjected to a certain size revolving force, and pulley is by general spring support, overcomes spring force during transmission of power and moves a certain amount ofly, and the restoring force by spring when conveyer belt fractures moves to the origin-location.
Possessed with the pulley action interlock in the driving belt switch that can the perception pulley moves, when the driving belt that revolving force is provided to cylinder fractureed, the strength that is delivered to pulley also was eliminated, and made pulley move to stop position.Also driving belt is fractureed signal to control part 40 outputs with the driving belt switch 50 of pulley interlock, the fractureing of the control part 40 perception driving belts of acknowledge(ment) signal.
The mechanical structure that must install for fractureing of perception driving belt is called the parts of driving belt switch, has increased the quantity of parts, has improved the manufacturing expense of product simultaneously.Give and use the consumer of product to increase financial burden.
Summary of the invention
Technical problem to be solved by this invention is, a kind of cognitive method of break of roller driving belt is provided, and this method is utilized fractureing that the rotary speed of motor can the perception driving belt, and plays the effect that reduces product cost.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the cognitive method of break of roller driving belt comprises the stage of the maximum rotative speed of setting drive motor under the state of normal connection driving belt; Detect the stage that drive motor drives the present rotary speed that causes; Relatively maximal rate of She Dinging and the rotary speed that detects are judged the stage that whether fractures of driving belt; When the rotary speed of drive motor is higher than the rotary speed of setting, but then the perception driving belt fractures.When the perception conveyer belt fractures, import control signal out of service, stop the driving of motor.
The invention has the beneficial effects as follows: pass on the driving belt of motor for perception among the present invention and whether fracture, set the maximum output rotary speed of the motor under the normal condition.Relatively setting value and the rotary speed of the motor of output now can judge that whether driving belt fractures then.
The present invention has removed the mechanical type structure that fractures for the perception driving belt, plays the effect that reduces product cost.The user of product is pleased oneself.
Description of drawings
Fig. 1 is the exploded perspective view of the primary structure of prior art drying machine.
When Fig. 2 is the drum driven of prior art drying machine, the pie graph whether the perception driving belt fractures.
When Fig. 3 is the drum driven of drying machine of the present invention, the pie graph that whether fractures of perception driving belt.
When Fig. 4 is the drum driven of drying machine of the present invention, the action flow chart that the perception driving belt fractures.
In the drawings:
1. cylinder 2. transmission troughs of belt
5. drying box 6. dividing plates
7. anterior end cap 9. rear portion end caps
10. baffle ring 12. air supply pipes
13. outlet assembly 14. lint filters
15. softening stringing 17. air blasts
18. air blast frame 19. blast pipes
20. warm-air pipe 22. jet for gas
23. gas pipe 24. mixing tubes
26. spark plug 30. keyboard input parts
40. control part 50. driving belt switches
60. Motor Drive portion 70. keyboard input parts
75. rotary speed sense part 80. control parts
90. Motor Drive portion
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: when Fig. 3 is the drum driven of drying machine of the present invention, the pie graph that whether fractures of perception driving belt.The formation of Bi Yao drying machine describes with reference to Fig. 1 in addition.
Comprise keyboard input part 70 for the signal of importing user's selection, discern by the signal of keyboard input part 70 inputs and the control part 80 of formation necessary operation, under the control of control part 80, make the Motor Drive portion 90 that the dry cylinder that moves is rotated that carries out.The present invention also comprises the rotary speed sense part 75 for the rotary speed that detects motor in addition.
Rotary speed sense part 75 is to utilize a kind of optical encoder of optical sensor, is installed on the motor reel of rotation, and the rate signal of perception motor rotation, the signal of perception is sent to control part 80.
The cognitive method of break of roller driving belt comprises the stage of the maximum rotative speed of setting drive motor under the state of normal connection driving belt; Detect the stage that drive motor drives the present rotary speed that causes; Relatively maximal rate of She Dinging and the rotary speed that detects are judged the stage that whether fractures of driving belt.
Motor under certain initial conditions according to the load variations rotary speed.When conveyer belt fractureed, the motor irrelevant with laundry amounts was in no load condition, and this moment, the rotary speed of motor was faster than normal condition (driving belt normally is connected the state of cylinder) rotary speed.
The following describes the course of action that fractures of perception roller driving belt among the present invention.
Fig. 4 is the action flow chart that fractures for perception roller driving belt of the present invention.
Close the door after putting into dry object clothing in the drying box 5 of cylinder 1 inside, when the user utilizes keyboard input part 70 to press Action Button then, signal is input to control part 80, carries out the drying action according to the signal of importing in the control part 80, at first to Motor Drive portion 90 output drive signals.Motor is rotated, and the revolving force that produce this moment is delivered to the driving belt that is wrapped in transmission trough of belt 2, makes cylinder 1 rotation.
The air that is fed to air supply pipe 12 is by forming high relatively temperature in warm-air pipe 20 processes.That is, jet for gas 22 to the coal gas of mixing tube 24 internal spray by spark plug 26 igniting after-combustions.The heat heating that gas-fired produces is drawn into the air of warm-air pipe 20 inside and forms hot blast.
Hot blast is sent to by air supply pipe 12 in the drying box 5 of cylinder 1 inside, discharges from drying box 5 by exhaust assembly 13 behind the moisture of the hot blast absorption clothing in the drying box 5.From drying box 5 discharge air attraction formation by air blast 17 by exhaust assembly 13 this moment.And the air that passes through outlet assembly 13 passes through to filter in the lint filter 14 foreign matters such as dust or line bits.Control part 80 read the rotary speed value of the motor that detects in the rotary speed sense part 75 when the drying of carrying out was moved.
In control part 80, set the state the carry out dry action a reference value that driving belt fractures that judges.A reference value is set under the normal state that connects of driving belt than the high relatively value of the normal rotary speed of motor, and motor rotary speed under no load condition is faster.
The rotary speed value that relatively reads of control part 80 and a reference value of setting then.When the maximum output rotary speed of setting motor during, be judged as driving belt and be in normal power delivery status greater than the rotary speed of output now.Proceed dry action, keep the driving condition of motor.
When the maximum of motor output rotary speed is less than output rotary speed now relatively, is judged as driving belt and fractures.Cut off the power of motor in order to stop dry action this moment.
The present invention compares the maximum output rotary speed of motor and the rotary speed of the present motor of exporting by control part, and whether the driving belt of perception transmission motor power fractures.Under this technical thought, the present invention is the rotary apparatus of perception cylinder rotation, can the perception washing machine, whether the fractureing of drying machine, Water Extraction Machinery driving belt.
Claims (1)
1. the cognitive method of a break of roller driving belt comprises the input that moves control signal and the driving of motor, it is characterized in that: the stage that also comprises the maximum rotative speed of setting drive motor under the state of normal connection driving belt; Detect drive motor and drive stage of the present rotary speed cause; Relatively maximal rate of She Dinging and detected rotary speed are judged the stage that whether fractures of driving belt; When the rotary speed of drive motor is higher than the rotary speed of setting, but then the perception driving belt fractures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021242402A CN100375814C (en) | 2002-07-12 | 2002-07-12 | Method for sensing break of roller driving belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021242402A CN100375814C (en) | 2002-07-12 | 2002-07-12 | Method for sensing break of roller driving belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1467333A CN1467333A (en) | 2004-01-14 |
| CN100375814C true CN100375814C (en) | 2008-03-19 |
Family
ID=34142681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021242402A Expired - Fee Related CN100375814C (en) | 2002-07-12 | 2002-07-12 | Method for sensing break of roller driving belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100375814C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978887B (en) * | 2006-04-14 | 2015-04-01 | Lg电子株式会社 | Dryer and controlling method thereof |
| JP5573596B2 (en) * | 2010-10-28 | 2014-08-20 | パナソニック株式会社 | Drum washing machine |
| CN104342877B (en) * | 2013-08-08 | 2018-04-06 | 博西华电器（江苏）有限公司 | Laundry machine |
| CN109537241B (en) * | 2017-09-21 | 2021-02-23 | 松下家电(中国)有限公司 | Belt falling detection method and washing machine |
| CN109440395B (en) * | 2018-12-12 | 2021-03-19 | 无锡小天鹅电器有限公司 | Clothes treatment device and method and device for prompting loosening of motor belt of clothes treatment device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07265595A (en) * | 1994-03-31 | 1995-10-17 | Hitachi Ltd | Rotary drum type clothes dryer |
-
2002
- 2002-07-12 CN CNB021242402A patent/CN100375814C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07265595A (en) * | 1994-03-31 | 1995-10-17 | Hitachi Ltd | Rotary drum type clothes dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1467333A (en) | 2004-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100375814C (en) | Method for sensing break of roller driving belt | |
| CN206430500U (en) | It is capable of the dryer of removal of impurities during baking gynostemma pentaphylla | |
| CN100535229C (en) | Washing machine with drying function | |
| CN101818446A (en) | Control method of clothing dryer | |
| KR100575675B1 (en) | Apparatus for driving drum in clothing dryer | |
| CN108684861A (en) | A kind of rolling tube type tea water removing machine | |
| CN111121413B (en) | A system of processing for health care pillow chrysanthemum filler processing | |
| JP4668035B2 (en) | Tea making line and its operation control method | |
| CN110435078B (en) | Granule dryer for injection molding | |
| CN100375818C (en) | Drying machine and control method thereof | |
| CN201533562U (en) | Induced draft device of coating equipment | |
| CN101086133A (en) | Method for checking clothes dryness in clothes drying machine | |
| CN100375903C (en) | Normal work detecting method for drum type motor | |
| CN208704386U (en) | A kind of concrete drier of industrial production | |
| CN111322846A (en) | Drying equipment | |
| CN214665854U (en) | Single-stage coal slime conveying system | |
| KR20030012418A (en) | cutting sense method of drum belt for washing machine | |
| CN214651705U (en) | Multistage coal slime conveying system | |
| CN214665852U (en) | Coal slime conveying device | |
| CN214665853U (en) | Single-stage net chain closed coal slime dryer | |
| CN214665624U (en) | Multistage network chain closed coal slime drying machine | |
| CN219157222U (en) | Fabric cleaning device | |
| CN217089393U (en) | Tea leaf fixation efficiency improving fixation furnace control system | |
| CN218965871U (en) | Granule drying-machine is used in plastic processing of plastic cable | |
| CN100375817C (en) | Heater controller of drier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 |