CN207294025U - A kind of steel-wire rope type electric block overspeed protective device tester - Google Patents
A kind of steel-wire rope type electric block overspeed protective device tester Download PDFInfo
- Publication number
- CN207294025U CN207294025U CN201721412219.8U CN201721412219U CN207294025U CN 207294025 U CN207294025 U CN 207294025U CN 201721412219 U CN201721412219 U CN 201721412219U CN 207294025 U CN207294025 U CN 207294025U
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- China
- Prior art keywords
- electric block
- protective device
- controller
- overspeed protective
- steel
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Abstract
It the utility model is related to special equipment and examine detection field, more particularly to a kind of steel-wire rope type electric block overspeed protective device tester, include controller, the speed measuring module for being controlled by the frequency-variable module of controller and being connected with the controller, the overspeed protective device of the controller and electric block is electrically connected, the output terminal of the frequency-variable module and the driving motor of electric block connect, the speed measuring module is used for the decrease speed for monitoring the hook gear of electric block, the utility model has easy to operate, the advantages that reliable and stable, the sensitivity of overspeed protective device can accurately be verified, it is widely used in electric block field.
Description
Technical field
It the utility model is related to special equipment and examine detection field, and in particular to a kind of steel-wire rope type electric block overspeed protection
Device tester.
Background technology
Steel-wire rope type electric block is a kind of small lifting equipment, and steel-wire rope type electric block has compact-sized, light-weight, body
Product it is small, component universality is strong, it is easy to operate the advantages that, it can be both arranged separately on I-steel, supporting can also be installed
Used on the cranes such as electric or hand single-beam, twin beams, cantilever, gantry.The peace of steel-wire rope type electric block in use
Full property has been to be concerned by more and more people, and electric block overspeed protective device is that one kind can eliminate and slip hook, avoid because of motor or
Transmission mechanism exceeds the speed limit and brings the safety guard of infringement, it exceedes the alarm speed of sensor setting when the speed of hook gear
When spending, automatic start protects system or sends alarm.However, electric block overspeed protective device is after prolonged use because shaking
The problems such as dynamic, abrasion and influence its sensitivity or even fail, so as to bring great security risk, it is therefore necessary to electricity
Dynamic cucurbit overspeed protective device is periodically verified.
Utility model content
The utility model is to provide a kind of steel-wire rope type electric block hypervelocity for the used technical solution that solves the above problems
Protective device tester, the output frequency of controller control frequency-variable module operate driving Motor Over Speed, and test module measurement is hung
The decrease speed of hook device simultaneously feeds back to controller, the input power of overspeed protective device action cut-out driving motor and by signal
Controller is fed back to, decrease speed at this time is the sensitivity of overspeed protective device；If overspeed protective device has failed, in suspension hook
When the decrease speed of device reaches certain value, controller automatically cut off driving motor input power, ensure protective calibration instrument and
Electric block.The technological means that the utility model uses is as follows：
A kind of steel-wire rope type electric block overspeed protective device tester, it is characterised in that：Include controller, be controlled by control
The frequency-variable module of device processed and the speed measuring module being connected with the controller, the overspeed protection dress of the controller and electric block
Electric connection is put, the output terminal of the frequency-variable module and the driving motor of electric block connect, and the speed measuring module is used to monitor
The decrease speed of the hook gear of electric block.
Further, the controller includes the first microcontroller, and the first microcontroller control frequency-variable module changes motor
Velocity of rotation.
Further, the controller has further included second singlechip, and the second singlechip is used to receive overspeed protection dress
Put with the feedback signal of speed measuring module and feedback signal is sent to first microcontroller.
Further, the frequency-variable module includes frequency converter, and the control that the frequency converter is exported according to the controller is believed
Number and export corresponding frequency to control the rotating speed of motor.
Further, the speed measuring module includes laser range finder, and the laser range finder is by measuring hook gear
Height change and the speed for calculating hook gear.
Preferably, the second singlechip is electrically connected with frequency-variable module to cut off the output of the frequency-variable module
Frequency.
Preferably, the speed measuring module and the controller wireless connection, the speed measuring module pass through wireless connection
Feedback signal is transferred to the controller by mode.
Preferably, the speed measuring module passes through bluetooth wireless connection with the controller.
The beneficial effects of the utility model are：The utility model provides a kind of steel-wire rope type electric block overspeed protective device school
Instrument is tested, has the advantages that easy to operate, reliable and stable, the sensitivity of overspeed protective device can be accurately verified, be widely used in
Electric block field.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the preferred case of the utility model.
Embodiment
Presently in connection with attached drawing and preferred embodiment, the utility model is described in more detail.
A kind of steel-wire rope type electric block overspeed protective device tester shown in Fig. 1 is refer to, includes controller, it is controlled
The overspeed protective device of frequency-variable module and the speed measuring module that is connected with controller in controller, controller and electric block leads to
Signal wire connection is crossed, for the output terminal of frequency-variable module with driving the input terminal of motor to be connected, frequency-variable module can be frequency converter, test the speed
Module can be laser range finder, and speed measuring module calculates the lower reduction of speed of hook gear by measuring the height change of hook gear
Degree.
When it is implemented, controller outputs control signals to frequency converter, frequency converter output frequency variation signal control driving motor
Overspeed operation, driving motor driving hook gear declines, when decrease speed superelevation the setting with overspeed protective device of hook gear
During definite value, overspeed protective device acts and cuts off the input power of driving motor, makes hook gear stop declining, overspeed protection dress
Put and action signal is fed back into controller, while laser range finder calculates suspension hook by measuring the height change of hook gear
The decrease speed of device simultaneously feeds back to controller, thus the sensitivity that the decrease speed of hook gear is overspeed protective device；Such as
The decrease speed of fruit hook gear exceedes the setting value of overspeed protective device, and when overspeed protective device does not act, controller
Control driving motor continues to accelerate, when the decrease speed of hook gear reaches 1.4 times of normal speeds of driving motor, controller
The input power that control signal cuts off driving motor to frequency converter is sent, can determine that overspeed protective device has failed at this time.
As another preferred case of the utility model, a kind of steel-wire rope type electric block overspeed protection as shown in Figure 2
Device tester, controller include the first microcontroller and second singlechip, and the first microcontroller is connected with frequency converter, the first monolithic
Machine control frequency converter changes the velocity of rotation of driving motor, so that driving Motor Over Speed operating drives hook gear to decline；It is super
Fast protective device and the feedback signal of laser range finder are transmitted to second singlechip, and second singlechip is connected with the first microcontroller.
When it is implemented, overspeed protective device acts and cuts off the input power of driving motor, make hook gear stop declining, at the same time will
Action signal feeds back to second singlechip；Laser range finder measures hook gear by measuring the height change of hook gear
Velocity variations, and the velocity variations of hook gear are fed back into second singlechip, second singlechip analyzes overspeed protective device
Sensitivity be hook gear maximum falling speed；If the decrease speed of hook gear exceedes the setting of overspeed protective device
Value, and when overspeed protective device does not act, controller control driving motor continues to accelerate, and laser range finder is by hook gear
Velocity variations feed back to second singlechip, when the decrease speed of hook gear reaches 1.4 times of normal speeds of driving motor, the
Signal is dealt into the first microcontroller by two microcontrollers, and the first microcontroller sends the input that control signal cuts off driving motor to frequency converter
Power supply, ensures the security of verification.
Preferably, second singlechip is connected with frequency converter by signal wire, and laser range finder becomes the speed of hook gear
Change feeds back to second singlechip, when the decrease speed of hook gear reaches 1.4 times of normal speeds of driving motor, the second monolithic
Machine outputs control signals to the input power of frequency converter cut-out driving motor.Cut by the direct output control signal of second singlechip
The input power of disconnected driving motor, lifts the response speed of verification, improves the security of verification.
Preferably, laser range finder measures hook gear by bluetooth and second singlechip wireless connection, laser range finder
Decrease speed after, feedback signal is transmitted to by second singlechip by bluetooth.Laser range finder is so set to be more convenient to be arranged on
Corresponding place, to measure the decrease speed of hook gear, lifts the applicability of tester.
More than, simply the preferred embodiment of the utility model, the utility model are not limited to the above embodiment,
As long as it reaches the technique effect of the utility model with identical means, it should all belong to the scope of protection of the utility model.
Claims (5)
- A kind of 1. steel-wire rope type electric block overspeed protective device tester, it is characterised in that：Include controller, be controlled by control The frequency-variable module of device and the speed measuring module being connected with the controller, the overspeed protective device of the controller and electric block It is electrically connected, the output terminal of the frequency-variable module and the driving motor of electric block connect, and the speed measuring module is used to monitor electricity The decrease speed of the hook gear of dynamic cucurbit.
- A kind of 2. steel-wire rope type electric block overspeed protective device tester according to claim 1, it is characterised in that：It is described Controller includes the first microcontroller, and the first microcontroller control frequency-variable module changes the velocity of rotation of driving motor.
- A kind of 3. steel-wire rope type electric block overspeed protective device tester according to claim 2, it is characterised in that：It is described Controller has further included second singlechip, and the second singlechip is used for the feedback letter for receiving overspeed protective device and speed measuring module Number and feedback signal is sent to first microcontroller.
- A kind of 4. steel-wire rope type electric block overspeed protective device tester according to claim 1, it is characterised in that：It is described Frequency-variable module includes frequency converter, the frequency converter exported according to the control signal that the controller exports corresponding frequency with Control the rotating speed of motor.
- A kind of 5. steel-wire rope type electric block overspeed protective device tester according to claim 1, it is characterised in that：It is described Speed measuring module includes laser range finder, and the laser range finder is filled by measuring the height change of hook gear to calculate suspension hook The speed put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721412219.8U CN207294025U (en) | 2017-10-27 | 2017-10-27 | A kind of steel-wire rope type electric block overspeed protective device tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721412219.8U CN207294025U (en) | 2017-10-27 | 2017-10-27 | A kind of steel-wire rope type electric block overspeed protective device tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207294025U true CN207294025U (en) | 2018-05-01 |
Family
ID=62274795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721412219.8U Active CN207294025U (en) | 2017-10-27 | 2017-10-27 | A kind of steel-wire rope type electric block overspeed protective device tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207294025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870317A (en) * | 2019-01-23 | 2019-06-11 | 广东省特种设备检测研究院珠海检测院 | A kind of amusement facility over-speed protection function detection method |
| CN112799377A (en) * | 2020-12-30 | 2021-05-14 | 中广核核电运营有限公司 | Ring crane overspeed protection checking system and method |
-
2017
- 2017-10-27 CN CN201721412219.8U patent/CN207294025U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870317A (en) * | 2019-01-23 | 2019-06-11 | 广东省特种设备检测研究院珠海检测院 | A kind of amusement facility over-speed protection function detection method |
| CN112799377A (en) * | 2020-12-30 | 2021-05-14 | 中广核核电运营有限公司 | Ring crane overspeed protection checking system and method |
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