CN206940372U - Lift state overspeed detection system - Google Patents
Lift state overspeed detection system Download PDFInfo
- Publication number
- CN206940372U CN206940372U CN201720314060.XU CN201720314060U CN206940372U CN 206940372 U CN206940372 U CN 206940372U CN 201720314060 U CN201720314060 U CN 201720314060U CN 206940372 U CN206940372 U CN 206940372U
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- Prior art keywords
- overspeed detection
- code
- controller
- lift
- detection switch
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Abstract
A kind of control system is the utility model is related to, especially a kind of lift state overspeed detection system, belongs to technical field of conveying machinery.According to technical scheme provided by the utility model, the axle center of the code-disc is fixed in the connecting shaft of lifter motor driving, the controller is connected with the overspeed detection switch sensor for detecting code-disc rotary state, and the overspeed detection switch sensor for being used to detect code-disc rotary state produces the pulse of certain frequency and transmitted to controller.The utility model is compact-sized, and the speed state of energy effective detection lift, automaticity is high, makes system operational security reliable.
Description
Technical field
A kind of detecting system is the utility model is related to, especially a kind of lift state overspeed detection system.Belong to conveying
Field of mechanical technique.
Background technology
In the conveying of auto manufacturing, due to technique and the demand in space, it is necessary to which vehicle body lifting appliance is realized from ground
Pipeline is reprinted to aerial conveying line or reprinted from aerial conveying line to ground transport line, and we are often to pass through lift
The conveying between different height pipeline is carried out, so the security of lift is particularly important.Will if control is improper
There is the situation that lift stall is dropped, damage equipment even workpiece, and cause to stop line, it is difficult to meet present automated production
It is required that.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of lift state overspeed detection
System.By the system, the positional information of lift can be detected, controls lift to complete corresponding conveying function.
According to technical scheme provided by the utility model, including controller, the lift state overspeed detection system, bag
Include controller；The axle center of the code-disc is fixed in the connecting shaft of lifter motor driving, and the controller is with being used for detection code
The overspeed detection switch sensor connection of disk rotary state, the overspeed detection switch sensing for being used to detect code-disc rotary state
Device produces the pulse of certain frequency and transmitted to controller.
The code-disc uses the jagged metal code disk in outside.
The controller uses PLC.
The overspeed detection switch sensor passes through overspeed detection switch sensor cable connection with overspeed detection switch.
The overspeed detection switch is connected by I/O cables with controller.
Advantages of the present invention：The speed state of lift is detected, can stop rising in advance in the case of lift stall
The operation of drop machine；Automaticity is high, and makes system operational security reliable.
Brief description of the drawings
Fig. 1 is the structure chart of overspeed detection switch.
Description of reference numerals：1- code-discs, 2- overspeed detections switch sensor, 3- overspeed detection switch sensings cable, 4- surpass
Fast detection switch, 5-I/O cables, 6- controllers, 7- motors, 8- connecting shafts.
Embodiment
With reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figure 1：In order to detect the speed state of lift in time, stop in advance in the case of lift stall
The operation of lift；Ensure that system operational security is reliable, the utility model includes controller 6；The axle center of the code-disc 1 is fixed on
In the connecting shaft 8 that lifter motor 7 drives, the controller 6 passes with the overspeed detection switch for detecting code-disc rotary state
Sensor 2 connects, the pulse of the generation certain frequency of overspeed detection switch sensor 2 for being used to detect code-disc rotary state and biography
Transport to controller 6.
Specifically, when lift rises or falls action, the code-disc 1 in elevator shaft can and then rotate, in code
During the sawtooth motion of disk, overspeed detection switch sensor 2 can produce pulse, and pulse is opened the light sensor electricity by overspeed detection
Cable 3 is sent on overspeed detection switch 4, and then overspeed detection switch 4 is according to the overspeed detection for being used to detect code-disc rotary state
Compared with the pulses of the setting of the actual pulse that switch sensor 2 is fed back and overspeed detection switch 4, the pulse that feeds back
More than the setting value of overspeed detection switch 4, illustrate that lift is in overspeed condition now, then overspeed detection switch 4 will lead to
I/O signal wires 5 are crossed to input abnormal signal to controller 6, after controller 6 receives the abnormal signal of overspeed detection switch, meeting
The operating output order of system for stopping elevators immediately, lifter motor band-type brake is closed, lift is stopped in advance, in case lift loses
Fast state undershoot it is supreme in place or under in place, damage equipment；
When lift rises or falls action, code-disc 1 carries out sawtooth motion, during the sawtooth motion of code-disc, surpasses
Fast detection switch sensor 2 can produce pulse, and pulse is sent to overspeed detection and switched by the overspeed detection sensor cable 3 that opens the light
On 4, then the basis of overspeed detection switch 4 is fed back for detecting the overspeed detection switch sensor 2 of code-disc rotary state
Actual pulse is compared with the pulse of the setting of overspeed detection switch 4, and pulse is less than the pulse of setting, and the speed of lift is in
Low speed normal condition, normal signal is sent to controller 6, now lift keeps normal operating condition.
The utility model is applied to the state-detection of lift, controls the state of lift, by turning for detection code disk
The overspeed detection switch sensor 2 of dynamic state obtains the pulse of lift state, and current elevator is calculated according to the pulse
The state of operation.
Claims (5)
1. a kind of lift state overspeed detection system, including controller（6）；It is characterized in that：Code-disc（1）Axle center be fixed on liter
Electromechanical machine drops（7）The connecting shaft of driving（8）On, the controller（6）Opened with the overspeed detection for detecting code-disc rotary state
Close sensor（2）Connection, the overspeed detection switch sensor for being used to detect code-disc rotary state（2）Produce certain frequency
Pulse is simultaneously transmitted to controller（6）.
2. lift state overspeed detection system according to claim 1, it is characterized in that：The code-disc（1）Using outside
Jagged metal code disk.
3. lift state overspeed detection system according to claim 1, it is characterized in that：The controller（6）Using
PLC。
4. lift state overspeed detection system according to claim 1, it is characterized in that：The overspeed detection switch sensing
Device（2）Switched with overspeed detection（4）Pass through overspeed detection switch sensor cable（3）Connection.
5. lift state overspeed detection system according to claim 4, it is characterized in that：The overspeed detection switch（4）
Pass through I/O cables（5）With controller（6）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314060.XU CN206940372U (en) | 2017-03-29 | 2017-03-29 | Lift state overspeed detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314060.XU CN206940372U (en) | 2017-03-29 | 2017-03-29 | Lift state overspeed detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206940372U true CN206940372U (en) | 2018-01-30 |
Family
ID=61357227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720314060.XU Active CN206940372U (en) | 2017-03-29 | 2017-03-29 | Lift state overspeed detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206940372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927407A (en) * | 2017-03-29 | 2017-07-07 | 天奇自动化工程股份有限公司 | Lift state overspeed detection system |
-
2017
- 2017-03-29 CN CN201720314060.XU patent/CN206940372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927407A (en) * | 2017-03-29 | 2017-07-07 | 天奇自动化工程股份有限公司 | Lift state overspeed detection system |
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