CN207698951U - A kind of protective device to throw switch suitable for elevator driven shaft - Google Patents
A kind of protective device to throw switch suitable for elevator driven shaft Download PDFInfo
- Publication number
- CN207698951U CN207698951U CN201721618029.1U CN201721618029U CN207698951U CN 207698951 U CN207698951 U CN 207698951U CN 201721618029 U CN201721618029 U CN 201721618029U CN 207698951 U CN207698951 U CN 207698951U
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- CN
- China
- Prior art keywords
- driven shaft
- gear
- driven
- shaft
- control system
- 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
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a kind of protective device to throw switch suitable for elevator driven shaft.Mainly solve the problems, such as that traditional stall protector accuracy is not high.The utility model structure is that the driving motor connects driving spindle left end, driving spindle and driven shaft are coordinated by winnowing pan band connection, the velocity-measuring system matches to merge with driven shaft to be fixed on holder, velocity-measuring system connects PLC in control system 8 by conducting wire, and control system also controls driving motor by relay.Present apparatus corresponding speed is fast, accuracy is high, good reliability.
Description
Technical field
The utility model is related to a kind of protective devices to throw switch suitable for elevator driven shaft.
Background technology
Ordinary material elevator is all to complete property operation by winnowing pan band connection driving spindle and driven shaft.It is being promoted
Cause the rotating speed of driving shaft and driven shaft inconsistent due to grain blocking, the loosening of winnowing pan band etc. in machine operational process（It is driven
Axis throws switch）Or broken belt.The display device that tests the speed is installed on the driven shaft of elevator, can rapidly, accurately be detected driven
The rotating speed of axis and the fixed rotating speed of driving shaft whether be unanimously driven shaft the degree that throws switch, to reach effective early warning and protection
The effect that motor, winnowing pan band damage；It is mainly each using driven shaft is detected close to switch using traditional stall protector
The rotation time in week determined the situation that throws switch of driven shaft later, and this guard method accuracy is not high, and utilized and be connected to promotion
Encoder detection signal on machine driven shaft and by PLC system operation result, can immediate assessment driven shaft throw switch degree, gently
The degree alarm signal that PLC is sent out when throwing switch can cause operating personnel's note that serious when throwing switch, and be closed by PLC control system
Stop driving motor and sends out serious pre-warning signal.
Invention content
Purpose of the utility model is to solve the above-mentioned problems of the prior art, and then provide a kind of suitable for carrying
The protective device that machine driven shaft throws switch is risen, corresponding speed is fast, accuracy is high, good reliability, effectively prevents throwing switch because of driven shaft
The problem of causing device fails even to be damaged.
The purpose of this utility model is achieved through the following technical solutions：It is a kind of to be suitable for what elevator driven shaft threw switch
Protective device, including driving motor, driving spindle, winnowing pan band, driven shaft, velocity-measuring system, conducting wire, holder, control system, it is described
Driving motor connect driving spindle left end, driving spindle and driven shaft coordinated by winnowing pan band connection, the velocity-measuring system
Be fixed on holder with driven shaft with merging, velocity-measuring system by PLC in conducting wire connection control system, control system also by after
Electrical equipment control driving motor.
The velocity-measuring system includes driven gear, gear wheel, flexible coupling, rotary encoder, wherein it is described from
Moving gear is engaged with gear wheel and is installed on holder, between the gear shaft and driven shaft of the driven gear, gear wheel
Gear shaft and rotary encoder between pass through flexible coupling connection cooperation.
The utility model has the beneficial effects that：By using the technical solution of the utility model, pass through PLC system operation knot
Fruit, can immediate assessment driven shaft throw switch degree, the alarm signal that PLC is sent out when slightly throwing switch can cause the note of operating personnel
Meaning, when seriously throwing switch, shuts down driving motor by PLC control system and sends out serious pre-warning signal, and stablizes in velocity-measuring system
Safety, considerably increases service life of equipment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing：The present embodiment is with the utility model skill
Implemented under premised on art scheme, give detailed embodiment, but the scope of protection of the utility model be not limited to it is following
Embodiment.
As shown in Figure 1, a kind of protective device to throw switch suitable for elevator driven shaft involved by the present embodiment, including drive
Dynamic motor 1, driving spindle 2, winnowing pan band 3, driven shaft 4, velocity-measuring system 5, conducting wire 6, holder 7, control system 8, the driving
Motor 1, which connects 2 left end of driving spindle, driving spindle 2 and driven shaft 4 and connected by winnowing pan band 3, to be coordinated, the velocity-measuring system 5
Match to merge with driven shaft 4 and be fixed on holder 7, velocity-measuring system 5 connects PLC in control system 8 by conducting wire 6, and control system 8 is also
Driving motor 1 is controlled by relay.
The velocity-measuring system 5 includes driven gear, gear wheel, flexible coupling, rotary encoder, wherein described
Driven gear is engaged with gear wheel and is installed on holder 7, between the gear shaft and driven shaft 4 of the driven gear, greatly
It is connected and is coordinated by flexible coupling between the gear shaft and rotary encoder of gear.
Specifically, the rotary encoder 5 and driven shaft 4 on the holder 7 rotate synchronously, when driving spindle 2 works from
Moving axis 4 links, and the driven gear on driven shaft 4 drives gear wheel, the rotary encoder 5 coaxially connected with gear wheel to send out continuously
Signal is simultaneously transmitted to control system 8 by pulse signal by conducting wire 6, and canine tooth wheel speed is received simultaneously by the PLC of control system 8
It can obtain the real-time rotating speed of driven shaft 4 and be compared with the fixed rotating speed of driving spindle 2, if the real-time rotating speed of driven shaft 4
Less than 3 fixed rotating speed of driving spindle（It throws switch）Instant alarming, it is described if the serious systemic that throws switch is automatically turned off driving motor 1
The instant alarming that throws switch has following three kinds of situations：It seriously alarms when the rotating speed of driven shaft 4 is less than the 5% of 1 rotating speed of driving spindle；When
The rotating speed of driven shaft 4 belongs to slight alarm when being less than the 2%~5% of 1 rotating speed of driving spindle；When the rotating speed of driven shaft 4 is less than driving
1 rotating speed of main shaft 2% when do not alarm.
In equipment running process, it may occur that vibrations effectively alleviate equipment by the setting of shaft coupling and gear set
Rotary encoder 5 caused by vibrations detects the problem of misalignment is even damaged, and accuracy of detection greatly improves, and is driven with driven gear big
Gear, canine tooth wheel speed is less than driven gear revolution, also reduces the load of rotary encoder, to increase service life,
Also deflecting improves accuracy of measurement.
The preferable specific implementation mode of the above, only the utility model, these specific implementation modes are all based on this
Different realization methods under utility model general idea, and the scope of protection of the utility model is not limited thereto, it is any ripe
Know those skilled in the art within the technical scope disclosed by the utility model, the change or replacement that can be readily occurred in, all
It should cover and be within the protection scope of the utility model.Therefore, the scope of protection of the utility model should be with claims
Subject to protection domain.
Claims (2)
1. a kind of protective device to throw switch suitable for elevator driven shaft, including it is driving motor, driving spindle, winnowing pan band, driven
Axis, velocity-measuring system, conducting wire, holder, control system, which is characterized in that the driving motor connects driving spindle left end, driving
Main shaft and driven shaft are coordinated by winnowing pan band connection, and the velocity-measuring system matches to merge with driven shaft to be fixed on holder, is tested the speed
System connects PLC in control system by conducting wire, and control system also controls driving motor by relay.
2. the protective device according to claim 1 to throw switch suitable for elevator driven shaft, which is characterized in that the survey
Speed system includes driven gear, gear wheel, flexible coupling, rotary encoder, wherein the driven gear is nibbled with gear wheel
Merging be installed on holder, between the gear shaft and driven shaft of the driven gear, the gear shaft of gear wheel with rotation compile
It is connected and is coordinated by flexible coupling between code device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618029.1U CN207698951U (en) | 2017-11-28 | 2017-11-28 | A kind of protective device to throw switch suitable for elevator driven shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618029.1U CN207698951U (en) | 2017-11-28 | 2017-11-28 | A kind of protective device to throw switch suitable for elevator driven shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207698951U true CN207698951U (en) | 2018-08-07 |
Family
ID=63023895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721618029.1U Expired - Fee Related CN207698951U (en) | 2017-11-28 | 2017-11-28 | A kind of protective device to throw switch suitable for elevator driven shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207698951U (en) |
-
2017
- 2017-11-28 CN CN201721618029.1U patent/CN207698951U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200114 Address after: 150000 307a, floor 3, building 1, No. 55, Pingshun street, Harbin Economic Development Zone, Harbin City, Heilongjiang Province Patentee after: Harbin MiaoMan Technology Co.,Ltd. Address before: 150000 room 527, 5 floor, commercial and residential D block, 8 Ashe River Street, Nangang District, Harbin, Heilongjiang. Patentee before: HARBIN MANFENG TECHNOLOGY CO.,LTD. |
|
| 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: 20180807 Termination date: 20211128 |