CN104931877B - A kind of electromagnetic brake performance test frock - Google Patents
A kind of electromagnetic brake performance test frock Download PDFInfo
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- CN104931877B CN104931877B CN201510378299.9A CN201510378299A CN104931877B CN 104931877 B CN104931877 B CN 104931877B CN 201510378299 A CN201510378299 A CN 201510378299A CN 104931877 B CN104931877 B CN 104931877B
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- electromagnetic brake
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- performance test
- inductive load
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Abstract
The inductive load of electromagnetic brake is connected to the invention discloses a kind of electromagnetic brake performance test frock, including output both positive and negative polarity（L）The rectifier bridge at two ends（B）, inductive load（L）On be in series with the first FET（Q1）With the second FET（Q2）；The inductive load（L）Two ends are parallel with controlling circuit of voltage regulation（5）；The inductive load（L）Two ends are also parallel with freewheeling circuit, and freewheeling circuit includes the first diode being cascaded（D1）With the 5th electric capacity（C5）, the 5th electric capacity（C5）On be parallel with the 8th resistance（R8）With the 9th resistance（R9）；First diode（D1）Positive pole pass through the first FET（Q1）It is connected to rectifier bridge（B）Output negative pole.The present invention structure can effective for electromagnetic brake performance test.
Description
Technical field
The present invention relates to a kind of test fixture, particularly a kind of electromagnetic brake performance test frock.
Background technology
Electromagnetic brake is a kind of connector that master end torsion is conveyed to passive side, can be according to the free knot of needs
Close, cut off or brake, because coming start, referred to as electromagnetic clutch, brake, with fast response time, structure letter using electromagnetic force
Single the advantages of.The electromagnetic brake of high safety performance is must be equipped with elevator industry, on traction machine.Therefore, in electromagnetic braking
In the production of device, it is necessary to introduce the frock that action accuracy test is carried out to electromagnetic brake.
The content of the invention
It is an object of the present invention to provide a kind of electromagnetic brake performance test frock.Its structure can be effective for
The performance test of electromagnetic brake.
Technical scheme：A kind of electromagnetic brake performance test frock, is characterized in：Including output both positive and negative polarity point
It is not connected on the rectifier bridge at the inductive load two ends of electromagnetic brake, inductive load and is in series with the first FET and second
Effect pipe；The inductive load two ends are parallel with controlling circuit of voltage regulation；The inductive load two ends are also parallel with freewheeling circuit,
Freewheeling circuit includes being parallel with the 8th resistance and the 9th on the first diode and the 5th electric capacity being cascaded, the 5th electric capacity
Resistance；The positive pole of first diode is connected to the output negative pole of rectifier bridge by the first FET.
In above-mentioned electromagnetic brake performance test frock, grid and the gate driving circuit phase of second FET
Even, gate driving circuit（Grid drive chip IR211S can be used directly）It is connected to single-chip microcomputer；And controlling circuit of voltage regulation and
The grid of one FET is connected to single-chip microcomputer；It is also associated with being used to gather the action of electromagnetic brake microswitch on single-chip microcomputer
First digit counter of number of times and the second digit counter that number of times is opened for gathering the second FET.
In foregoing electromagnetic brake performance test frock, the controlling circuit of voltage regulation includes operational amplifier, and computing is put
The positive input of big device passes sequentially through 3rd resistor and the 5th resistance is connected the one of cathode rectifier output end with inductive load
End is connected, and the reverse input end of the operational amplifier passes sequentially through the other end of the 4th resistance and the 6th resistance and inductive load
It is connected；The reverse input end of the operational amplifier is also connected by second resistance with the output end of operational amplifier, wherein transporting
The output end for calculating amplifier is additionally coupled to single-chip microcomputer.
In foregoing electromagnetic brake performance test frock, the output end of the operational amplifier passes sequentially through the first electric capacity
It is grounded with after the 7th resistance R7.
In foregoing electromagnetic brake performance test frock, the 3rd electric capacity is parallel with the second resistance.
In foregoing electromagnetic brake performance test frock, the positive input of the operational amplifier passes through first resistor
After be grounded, the second electric capacity is parallel with the first resistor.
In foregoing electromagnetic brake performance test frock, the 4th electricity is connected between two output ends of the rectifier bridge
Hold.
In foregoing electromagnetic brake performance test frock, first FET and the second FET are in parallel respectively
There are the second diode and the 3rd diode.
Compared with prior art, the present invention can be by the mating reaction of rectifier bridge and controlling circuit of voltage regulation, can be negative to perception
The adjustable stable DC voltage of output is carried, plus the freewheeling circuit being connected in parallel on inductive load, electromagnetic brake can be made
The back-emf produced in unexpected power-off will not damage other components.And the present invention can be controlled by the second FET
The service time and turn-off time of output voltage, so that the adhesive and release of brake are realized, in brake adhesive release simultaneously,
The number of times for opening number of times and brake microswitch of output voltage can also be gathered by 2 way word counters, passes through 2 ways
The contrast of word counter judges the reliability of brake microswitch.So as to realize to the safe and effective of brake performance
Test.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the present invention；
Fig. 2 is the structural representation of controlling circuit of voltage regulation of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment.A kind of electromagnetic brake performance test frock, as shown in Figure 1：It is connected to including output both positive and negative polarity
The first FET Q1 and second effect are in series with the rectifier bridge B at the inductive load L two ends of electromagnetic brake, inductive load L
Should pipe Q2；The inductive load L two ends are parallel with controlling circuit of voltage regulation 5；The inductive load L two ends are also parallel with afterflow electricity
Road, freewheeling circuit includes the first diode D1 for being cascaded and the 8th electricity is parallel with the 5th electric capacity C5, the 5th electric capacity C5
Hinder R8 and the 9th resistance R9；The positive pole of the first diode D1 is connected to rectifier bridge B output by the first FET Q1
Negative pole.The grid of the second FET Q2 is connected with gate driving circuit 1, and gate driving circuit 1 is connected to single-chip microcomputer 2；
And the FET Q1 of controlling circuit of voltage regulation 5 and first grid is connected to single-chip microcomputer 2；It is also associated with being used to adopt on single-chip microcomputer 2
Collect the first digit counter 3 of electromagnetic brake microswitch action frequency and open number of times for gathering the second FET Q2
The second digit counter 4.
The controlling circuit of voltage regulation 5 as shown in Fig. 2 including operational amplifier U, operational amplifier U positive input according to
It is secondary to be connected by 3rd resistor R3 and the 5th resistance R5 one end that rectifier bridge B cathode output ends are connected with inductive load L, the fortune
Calculation amplifier U reverse input end passes sequentially through the 4th resistance R4 and the 6th resistance R6 is connected with the inductive load L other end；Institute
The reverse input end for stating operational amplifier U is also connected by second resistance R2 with operational amplifier U output end, and wherein computing is put
Big device U output end is additionally coupled to single-chip microcomputer 2.
The output end of the operational amplifier U is passed sequentially through and is grounded after the first electric capacity C1 and the 7th resistance R7.Described second
The 3rd electric capacity C3 is parallel with resistance R2.The positive input of the operational amplifier U is described by being grounded after first resistor R1
The second electric capacity C2 is parallel with first resistor R1.The 4th electric capacity C4 is connected between two output ends of the rectifier bridge B.It is described
First FET Q1 and the second FET Q2 are parallel with the second diode D2 and the 3rd diode D3 respectively.
The operation principle of the present invention:When the input voltage of rectifier bridge is AC220V civil powers, single-chip microcomputer of the invention can be with
By controlling pulse, it is arbitrarily to adjust between DC0V-DC300V to make to be output to voltage range on brake, general power 2KW, defeated
Going out voltage will not change and change with load.Another aspect, by controlling the service time and turn-off time of output voltage, so that
The adhesive and release of brake are realized, in brake adhesive release simultaneously, opening for output voltage is gathered by 2 way word counters
The number of times of logical number of times and brake microswitch, judge brake microswitch by the contrast of 2 way word counters can
By property.
Claims (7)
1. a kind of electromagnetic brake performance test frock, it is characterised in that：Electromagnetic braking is connected to including output both positive and negative polarity
The first FET (Q1) and second effect are in series with the rectifier bridge (B) at inductive load (L) two ends of device, inductive load (L)
It should manage (Q2)；Inductive load (L) two ends are parallel with controlling circuit of voltage regulation (5)；Inductive load (L) two ends are also parallel with
Freewheeling circuit, freewheeling circuit is included on the first diode (D1) and the 5th electric capacity (C5) being cascaded, the 5th electric capacity (C5)
It is parallel with the 8th resistance (R8) and the 9th resistance (R9)；The positive pole of first diode (D1) passes through the first FET (Q1)
It is connected to rectifier bridge (B) output negative pole；The grid of second FET (Q2) is connected with gate driving circuit (1), grid
Pole drive circuit (1) is connected to single-chip microcomputer (2)；And the grid of controlling circuit of voltage regulation (5) and the first FET (Q1) is all connected with
To single-chip microcomputer (2)；The first digital meter for gathering electromagnetic brake microswitch action frequency is also associated with single-chip microcomputer (2)
Number device (3) and the second digit counter (4) that number of times is opened for gathering the second FET (Q2).
2. electromagnetic brake performance test frock according to claim 1, it is characterised in that：The controlling circuit of voltage regulation
(5) operational amplifier (U) is included, the positive input of operational amplifier (U) passes sequentially through 3rd resistor (R3) and the 5th resistance
(R5) be connected with inductive load (L) rectifier bridge (B) cathode output end one end be connected, the operational amplifier (U) it is reverse defeated
Enter that end passes sequentially through the 4th resistance (R4) and the 6th resistance (R6) is connected with the other end of inductive load (L)；The operation amplifier
The reverse input end of device (U) is also connected by second resistance (R2) with the output end of operational amplifier (U), wherein operational amplifier
(U) output end is additionally coupled to single-chip microcomputer (2).
3. electromagnetic brake performance test frock according to claim 2, it is characterised in that：The operational amplifier (U)
Output end pass sequentially through the first electric capacity (C1) and the 7th resistance (R7) is grounded afterwards.
4. electromagnetic brake performance test frock according to claim 2, it is characterised in that：On the second resistance (R2)
It is parallel with the 3rd electric capacity (C3).
5. electromagnetic brake performance test frock according to claim 2, it is characterised in that：The operational amplifier (U)
Positive input be grounded afterwards by first resistor (R1), be parallel with the second electric capacity (C2) on the first resistor (R1).
6. electromagnetic brake performance test frock according to claim 1, it is characterised in that：The two of the rectifier bridge (B)
The 4th electric capacity (C4) is connected between individual output end.
7. electromagnetic brake performance test frock according to claim 1, it is characterised in that：First FET
And the second FET (Q2) is parallel with the second diode (D2) and the 3rd diode (D3) respectively (Q1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378299.9A CN104931877B (en) | 2015-06-30 | 2015-06-30 | A kind of electromagnetic brake performance test frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378299.9A CN104931877B (en) | 2015-06-30 | 2015-06-30 | A kind of electromagnetic brake performance test frock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104931877A CN104931877A (en) | 2015-09-23 |
| CN104931877B true CN104931877B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510378299.9A Active CN104931877B (en) | 2015-06-30 | 2015-06-30 | A kind of electromagnetic brake performance test frock |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627243A (en) * | 2012-04-10 | 2012-08-08 | 安徽广德昌立制动器有限公司 | PWM (Pulse Width Modulation) chopped mode brake fully automatic control device |
| CN203057003U (en) * | 2012-12-27 | 2013-07-10 | 浙江西子富沃德电机有限公司 | Actuator of electromagnetic brake |
| WO2014060787A1 (en) * | 2012-10-15 | 2014-04-24 | Freescale Semiconductor, Inc. | An inductive load control circuit, a braking system for a vehicle and a method of measuring current in an inductive load control circuit |
| CN204789929U (en) * | 2015-06-30 | 2015-11-18 | 浙江玛拓驱动设备有限公司 | Electromagnetic braking ware capability test frock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059882B4 (en) * | 2008-12-01 | 2010-07-15 | Schaltbau Gmbh | Device and method for monitoring a magnetic brake on rail vehicles |
-
2015
- 2015-06-30 CN CN201510378299.9A patent/CN104931877B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627243A (en) * | 2012-04-10 | 2012-08-08 | 安徽广德昌立制动器有限公司 | PWM (Pulse Width Modulation) chopped mode brake fully automatic control device |
| WO2014060787A1 (en) * | 2012-10-15 | 2014-04-24 | Freescale Semiconductor, Inc. | An inductive load control circuit, a braking system for a vehicle and a method of measuring current in an inductive load control circuit |
| CN203057003U (en) * | 2012-12-27 | 2013-07-10 | 浙江西子富沃德电机有限公司 | Actuator of electromagnetic brake |
| CN204789929U (en) * | 2015-06-30 | 2015-11-18 | 浙江玛拓驱动设备有限公司 | Electromagnetic braking ware capability test frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104931877A (en) | 2015-09-23 |
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Denomination of invention: An electromagnetic brake performance test tool Effective date of registration: 20220728 Granted publication date: 20171031 Pledgee: Nanxun Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG MATO DRIVE EQUIPMENT CO.,LTD. Registration number: Y2022330001546 |
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