CN203269383U - Emergency braking circuit of starter - Google Patents
Emergency braking circuit of starter Download PDFInfo
- Publication number
- CN203269383U CN203269383U CN 201320175587 CN201320175587U CN203269383U CN 203269383 U CN203269383 U CN 203269383U CN 201320175587 CN201320175587 CN 201320175587 CN 201320175587 U CN201320175587 U CN 201320175587U CN 203269383 U CN203269383 U CN 203269383U
- Authority
- CN
- China
- Prior art keywords
- pair
- braking
- control contactor
- open contact
- declutches
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses an emergency braking circuit of a starter, which can normally place an object on a starter hanging hook under the condition that an alternating current braking control circuit cannot work normally. The emergency braking circuit comprises an emergency power supply, a normally open type braking button and a normally open type brake releasing button, a normally closed type over-speed resetting button, a brake control contactor, a brake releasing control contactor, an over-speed control contactor, an over-speed sensor, an emergency braking motor, a braking driving contactor, a brake releasing driving contactor, a braking limiting contactor, a brake releasing limiting contactor, a braking limiting sensor and a brake releasing limiting sensor, wherein the quantity of each of the emergency braking motor, the braking driving contactor, the brake releasing driving contactor, the braking limiting contactor, the brake releasing limiting contactor, the braking limiting sensor and the brake releasing limiting sensor corresponds to the quantity of an emergency braking mechanism of the starter; various types of the contactors, buttons and brakes are mutually matched to finish braking and brake releasing movements; the emergency braking circuit is interlocked with a main hook motor to protect so that a crane finishes the work of normally hoisting objects. The crane adopting the emergency braking circuit disclosed by the utility model is particularly suitable for the fields of hoisting large-size objects and placing into cooling liquid to carry out quenching treatment and the like.
Description
Technical field
The utility model relates to the control circuit in a kind of electric utility, refers more particularly to a kind of emergency brake circuit of starter.
Background technology
The AC brake control circuit as shown in Figure 1 that present starter usually only is provided with normal brake application mechanism and matches with it.In actual use, in the normal situation of line voltage, normal brake application does not have problem usually.But under the abnormal condition such as electrical network outage suddenly, the AC brake control circuit will be ineffective, and large-sized object high-speed falling under action of gravitation is accidents caused, especially puts into refrigerant fluid when starter hoisting large-size object and carries out the Quenching Treatment process.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of can be in the situation that AC brake control circuit cisco unity malfunction also can make the emergency brake circuit of the starter that the object on the starter suspension hook normally puts down.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the emergency brake circuit of starter comprises: the hypervelocity reset button of the stop button of emergency source of electrical power, open type and the button that declutches, closed type, brake control contactor, corresponding emergency brake motor, the braking of emergency brake mechanism of the control contactor that declutches, hypervelocity control contactor, hypervelocity sensor and quantity and starter drives contactless switch, the driving contactless switch that declutches, brake spacing contactless switch, the spacing contactless switch that declutches, brake limit sensors and the limit sensors that declutches;
Described emergency source of electrical power be provided with pair of output, a pair of and its mouth one by one corresponding the first output exit that is connected and a pair of and the first output exit one by one corresponding be connected second export exit;
The coil tandem of stop button and braking control contactor is between a pair of first output exit of emergency source of electrical power, declutch button and the control contactor that declutches coil tandem described emergency source of electrical power a pair of first output exit between, the coil tandem of a pair of open contact of hypervelocity sensor and hypervelocity reset button and hypervelocity control contactor is between a pair of first output exit of described emergency source of electrical power, and a pair of open contact of hypervelocity control contactor is attempted by the two ends of a pair of open contact of described hypervelocity sensor;
The coil tandem of a pair of open contact of braking limit sensors and the spacing contactless switch of corresponding braking is between a pair of second output exit of emergency source of electrical power, and the coil tandem of a pair of normally closed contact of the limit sensors that declutches and the spacing contactless switch that declutches accordingly is between a pair of second output exit of described emergency source of electrical power;
The a pair of open contact of a pair of open contact of braking control contactor and hypervelocity control contactor and connect after drive contactless switch with a pair of open contact and the corresponding braking of the spacing contactless switch of braking coil tandem between a pair of second output exit of described emergency source of electrical power, a pair of open contact of the control contactor that declutches be connected in series a pair of normally closed contact of rear and the spacing contactless switch that declutches with a pair of normally closed contact of hypervelocity control contactor and the coil tandem of the driving contactless switch that declutches is accordingly exported between exit at second of described emergency source of electrical power;
a mouth of the first output exit is connected with an input end of corresponding emergency brake motor by a pair of open contact that corresponding braking drives contactless switch, the a pair of open contact that drives contactless switch by declutching accordingly is connected with another input end of described corresponding emergency brake motor, another mouth of the first output exit drive contactless switch by corresponding braking another open contact is connected with another input end of described corresponding emergency brake motor, another that drives contactless switch by declutching accordingly is connected with an input end of described corresponding emergency brake motor to open contact.
Described emergency source of electrical power is battery pack.
Described emergency brake circuit comprises that also the ac-dc switching power of promising battery charging is Switching Power Supply, be provided with charging current limiter resistance between the positive pole of ac-dc switching power and the positive pole of battery pack, the negative pole of ac-dc switching power and the negative pole of battery pack are provided with storage battery charge control circuit between battery pack and ac-dc switching power altogether.
described storage battery charge control circuit comprises: exchange the dead electricity control contactor, accumulator electric-quantity detects table, charging control contactor and be full of control contactor, the coil that exchanges the dead electricity control contactor accesses in the ac input circuit of ac-dc switching power, the power end that accumulator electric-quantity detects table is connected with the positive output end of a pair of first output exit of battery pack by a pair of open contact that exchanges the dead electricity control contactor, the ground terminal that accumulator electric-quantity detects table is connected with the negative output terminal of a pair of first output exit of battery pack, the two ends that are full of the coil of control contactor are connected with the control output end of accumulator electric-quantity detection table and the ground terminal of accumulator electric-quantity detection table respectively, after being full of the coil tandem of a pair of open contact of control contactor and the control contactor that charges, detecting with accumulator electric-quantity the power end of showing respectively is connected with ground terminal, be serially connected with another a pair of open contact to open contact and charging control contactor that exchanges the dead electricity control contactor between the positive pole of described charging current limiter resistance and battery pack, consist of the charging control path, the positive output end of described a pair of the second output exit is connected with the positive output of ac-dc switching power by the 3rd pair of open contact that exchanges the dead electricity control contactor.
Also be provided with charging control switch between the positive pole of described battery pack and charging control path.
Be provided with the duplex change-over switch between the both positive and negative polarity of described battery pack and described a pair of the first output exit.
The a pair of open contact of described braking control contactor, the control contactor that declutches, hypervelocity control contactor and connect after, the positive output end that is serially connected in a pair of second output exit of described battery pack is exported between the positive output end of exit with a pair of first.
Also include in described emergency brake circuit and brake the spacing lamp of braking that limit sensors quantity equates, the spacing lamp that declutches that equates with the limit sensors quantity that declutches, another that brake spacing lamp and the spacing contactless switch of corresponding braking is serially connected between described a pair of the second output exit normally closed contact, and another of declutch spacing lamp and the spacing contactless switch that declutches accordingly is serially connected in described a pair of second to normally closed contact and exports between exit.
Also include the hypervelocity indicator lamp in described emergency brake circuit, another of hypervelocity indicator lamp and hypervelocity sensor is serially connected between described a pair of the first output exit open contact.
The beneficial effects of the utility model are: the utility model can normally put down the object on the starter suspension hook under the abnormal condition such as suddenly outage of electrical network occurring, thereby has effectively avoided the generation of the accident that causes because of the object high-speed falling.In addition, Switching Power Supply both to the battery charging of emergency source of electrical power, was the battery pack makeup energy, simultaneously also in the normal situation of electrical network, keep the normal operation of each components and parts in described emergency brake circuit, to guarantee the emergent need of emergency source of electrical power.In addition, the utility model has configured hypervelocity, the spacing and spacing indicator lamp that declutches of braking, greatly facilitates controlling of this emergency brake circuit.
Description of drawings
Fig. 1 is the theory structure schematic diagram of the AC brake circuit described in background technology.
Fig. 2 is the theory structure schematic diagram of emergency brake circuit described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail based on the emergency brake mechanism that a pair of emergency brake motor is installed:
as shown in Figure 2, the emergency brake circuit of starter described in the utility model comprises: as the 24 overhead accumulator groups that formed by two storage batterys serial connections of E1 and E2 of emergency source of electrical power, the stop button SB1 of open type and the button SB2 that declutches, the hypervelocity reset button SB3 of closed type, the braking control contactor, control contactor declutches, the hypervelocity control contactor, the hypervelocity sensor, a pair of emergency brake motor i.e. the first braking DC machine MD1 and the second braking DC machine MD2, it is that the first braking drives contactless switch and the second braking drives contactless switch that a pair of braking drives contactless switch, a pair of declutching drives contactless switch and namely first declutches and drive contactless switch and the second driving contactless switch that declutches, the spacing contactless switch of a pair of braking i.e. the first spacing contactless switch of braking and the second spacing contactless switch of braking, a pair of i.e. first spacing contactless switch and the second spacing contactless switch that declutches that declutches of spacing contactless switch that declutches, a pair of braking limit sensors i.e. the first braking limit sensors and the second braking limit sensors, a pair of declutch limit sensors namely first declutch limit sensors and second declutch limit sensors and for the ac-dc switching power of battery charging be Switching Power Supply A1, described battery pack is provided with a pair of the first output exit that is made of the first positive output end A+ and the first negative output terminal A-and a pair of the second output exit that is made of the second positive output end C+ and the second negative output terminal A-, battery pack just, the first positive output end A+ of negative pole by a duplex change-over switch QF2 and battery pack and the first negative output terminal A-(also claiming ground terminal) be corresponding being connected one by one, the second negative output terminal be connected with the first negative output terminal (share a negative output terminal A-), the second positive output end C+ is by a pair of normally closed contact KA2-CB1 of interchange dead electricity control contactor and by a pair of open contact KA7-CK3 that brakes control contactor, the a pair of KA8-CK3 of control contactor declutches, be connected with the first positive output end A+ after the switches set serial connection that a pair of open contact KA9-CK3 and connecing of hypervelocity control contactor forms, the coil KA7 of described stop button SB1 and braking control contactor is serially connected between a pair of first output exit of battery pack, the coil KA8 of button SB2 and the control contactor that declutches of declutching is serially connected between a pair of first output exit of described battery pack, the coil KA9 of a pair of open contact SC of hypervelocity sensor and hypervelocity reset button SB3 and hypervelocity control contactor is serially connected between a pair of first output exit of described battery pack, and a pair of open contact KA9-CK2 of hypervelocity control contactor is attempted by the two ends of a pair of open contact SC of described hypervelocity sensor, the coil KA3 of a pair of open contact ST1 of the first braking limit sensors and the first spacing contactless switch of braking is serially connected in a pair of second of described battery pack and exports between exit (A-and C+), the coil KA4 of a pair of open contact ST2 of the second braking limit sensors and the second spacing contactless switch of braking is serially connected between a pair of second output exit of described battery pack, the declutch coil KA5 of spacing contactless switch of the first a pair of normally closed contact ST3 and first that declutches limit sensors is serially connected between a pair of second output exit of described battery pack, the declutch coil KA6 of spacing contactless switch of the second a pair of normally closed contact ST4 and second that declutches limit sensors is serially connected between a pair of second output exit of described battery pack, the braking control contactor a pair of open contact KA7-CK1 and the hypervelocity control contactor a pair of open contact KA9-CK1 and connect after be divided into two-way, the coil KM1 that a pair of open contact KA3-CK1 of the one tunnel and first spacing contactless switch of braking and the first braking drive contactless switch is serially connected between a pair of second output exit of described battery pack, the coil KM3 that a pair of open contact KA4-CK1 of another road and the second spacing contactless switch of braking and the second braking drive contactless switch is serially connected between a pair of second output exit of described battery pack, the a pair of open contact KA8-CK1 of control contactor of declutching is divided into two-way with a pair of normally closed contact KA9-CB of hypervelocity control contactor after being connected in series, the one tunnel and first a pair of normally closed contact KA5-CB1 and first that declutches spacing contactless switch coil KM2 that drives contactless switch that declutches is serially connected between a pair of second output exit of described battery pack, another road and the second a pair of normally closed contact KA6-CB1 and second of spacing contactless switch coil KM4 that drives contactless switch that declutches that declutches is serially connected between a pair of second output exit of described battery pack, the first positive output end A+ of described storage battery drives contactless switch by the first braking a pair of open contact KM1-CK1 is connected with the positive input terminal of the first braking DC machine MD1, be connected with the negative input end of the first braking DC machine MD1 by the first a pair of open contact KM2-CK1 that declutches the driving contactless switch, the first negative output terminal A-of described storage battery drives contactless switch by the first braking a pair of open contact KM1-CK2 is connected with the negative input end of the first braking DC machine MD1, be connected with the positive input terminal of the first braking DC machine MD1 by the first a pair of open contact KM2-CK2 that declutches the driving contactless switch, the first positive output end A+ of described storage battery drives contactless switch by the second braking a pair of open contact KM3-CK1 is connected with the positive input terminal of the second braking DC machine MD2, be connected with the negative input end of the second braking DC machine MD2 by the second a pair of open contact KM4-CK1 that declutches the driving contactless switch, the first negative output terminal A-of described storage battery drives contactless switch by the second braking a pair of open contact KM3-CK2 is connected with the negative input end of the second braking DC machine MD2, be connected with the positive input terminal of the second braking DC machine MD2 by the second a pair of open contact KM4-CK2 that declutches the driving contactless switch, be provided with charging current limiter resistance R 1 between the positive pole of described Switching Power Supply and the positive pole of battery pack, the negative pole of Switching Power Supply and the negative pole of battery pack are altogether, be provided with storage battery charge control circuit between battery pack and ac-dc switching power, its structure comprises: exchange the dead electricity control contactor, accumulator electric-quantity detects table Q, charging control contactor and be full of control contactor, the coil KA2 that exchanges the dead electricity control contactor accesses in the ac input circuit of Switching Power Supply A1, the power end that accumulator electric-quantity detects table Q is connected with the first positive output end of battery pack by a pair of open contact KA2-CK1 that exchanges the dead electricity control contactor, the ground terminal that accumulator electric-quantity detects table Q is connected with the first negative output terminal of battery pack, the two ends that are full of the coil SSR1 of control contactor are connected with the control output end of accumulator electric-quantity detection table Q and the ground terminal of accumulator electric-quantity detection table Q respectively, the a pair of open contact SSR1-CK that is full of control contactor is with after the coil KA1 of charging control contactor is connected in series, detecting with accumulator electric-quantity the power end of showing Q respectively is connected with ground terminal, be serially connected with a pair of open contact (this open contact by with a pair of open contact in one group of open and close type contact KA1-KB of central contact) of a pair of open contact KA2-CK2 that exchanges the dead electricity control contactor and charging control contactor between the positive pole of described charging current limiter resistance R 1 and battery pack, exchange a pair of open contact KA2-CK2 of dead electricity control contactor and a pair of open contact and the charging current limiter resistance R 1 of charging control contactor and consist of the charging control path, also be provided with charging control switch QF3 between the positive pole of this charging control path and described battery pack, the positive output end C+ of described a pair of the second output exit is connected with the positive output end V1 of Switching Power Supply A1 by a pair of open contact KA2-CK3 that exchanges the dead electricity control contactor.
during practical application, also include first a braking spacing lamp L1 corresponding with the first braking limit sensors and second a braking spacing lamp L2 corresponding with the second braking limit sensors in emergency brake circuit described in the utility model, the first declutch spacing lamp L3 and the second corresponding declutch spacing lamp L4 and hypervelocity indicator lamp L5 of one and second limit sensors that declutches that one and first limit sensors that declutches is corresponding, the a pair of open contact KA3-CK2 of the first spacing lamp L1 of braking and the first spacing contactless switch of braking is serially connected between described a pair of the second output exit, the a pair of open contact KA4-CK2 of the second spacing lamp L2 of braking and the second spacing contactless switch of braking is serially connected between described a pair of the second output exit, first the declutch a pair of normally closed contact KA5-CB2 of spacing contactless switch of spacing lamp L3 and first that declutches is serially connected between described a pair of the second output exit, second the declutch a pair of normally closed contact KA6-CB2 of spacing contactless switch of spacing lamp L4 and second that declutches is serially connected between described a pair of the second output exit, the a pair of open contact 1JSC of hypervelocity indicator lamp L5 and hypervelocity sensor is serially connected between described a pair of the first output exit, the declutch a pair of normally closed contact KA5-CB3 and second of spacing contactless switch of a pair of normally closed contact KA4-CB1, first of a pair of normally closed contact KA3-CB1 of described the first spacing contactless switch of braking, the second spacing contactless switch of braking declutches and is concatenated in the control circuit of main hook motor after a pair of normally closed contact KA6-CB3 serial connection of spacing contactless switch.
Principle of work of the present utility model is: when pressing stop button SB1, forward by the first braking DC machine MD1 and the second braking DC machine MD2, with the push rod top of controlling corresponding emergency brake mechanism put in place (ST1 or ST2 connect), at this moment, corresponding the first braking DC machine MD1 or the second braking DC machine MD2 stop upper rotation, and braking is completed; Otherwise, when pressing when declutching button SB2, the first braking DC machine MD1 and the second braking DC machine MD2 counter-rotating, begin to declutch, after the push rod homing of corresponding emergency brake to be controlled mechanism, corresponding the first braking DC machine MD1 or the second braking DC machine MD2 stop upper rotation, and the process that declutches finishes; When the suspension hook of overweight machine fall (the hypervelocity sensor detects hypervelocity) when too fast, described emergency brake circuit is completed braking procedure identical when pressing stop button SB1, after braking is completed, by pressing hypervelocity reset button SB3, make the coil KA9 dead electricity of hypervelocity control contactor, the hypervelocity control contactor resets.
this practical described emergency brake circuit in the course of the work, only have when pressing stop button SB1, button SB2 or hypervelocity reset button SB3 declutch, give the coil KA7 of corresponding braking control contactor, declutch control contactor coil KA8 or the hypervelocity control contactor coil KA9 power on, make a pair of open contact KA7-CK3 of braking control contactor, declutch control contactor a pair of open contact KA8-CK3 or the hypervelocity control contactor a pair of open contact KA9-CK3 the second positive output end C+ is communicated with the first positive output end A+, in other words, do not pressing stop button SB1, when declutching button SB2 or hypervelocity reset button SB3, it is that the first braking drives contactless switch and the second braking drives contactless switch that a pair of braking drives contactless switch, a pair of declutching drives contactless switch and namely first declutches and drive contactless switch and the second driving contactless switch that declutches, the spacing contactless switch of a pair of braking i.e. the first spacing contactless switch of braking and the second spacing contactless switch of braking, a pair of declutch spacing contactless switch namely first spacing contactless switch and the second spacing contactless switch that declutches that declutches be in power failure state, greatly reduce energy consumption, reduced use cost.
Claims (9)
1. the emergency brake circuit of starter is characterized in that: described emergency brake circuit include the stop button of emergency source of electrical power, open type and the button that declutches, closed type the hypervelocity reset button, brake control contactor, corresponding emergency brake motor, the braking of emergency brake mechanism of the control contactor that declutches, hypervelocity control contactor, hypervelocity sensor and quantity and starter drives contactless switch, the driving contactless switch that declutches, brake spacing contactless switch, the spacing contactless switch that declutches, brake limit sensors and the limit sensors that declutches;
Described emergency source of electrical power be provided with pair of output, a pair of and its mouth one by one corresponding the first output exit that is connected and a pair of and the first output exit one by one corresponding be connected second export exit;
The coil tandem of stop button and braking control contactor is between a pair of first output exit of emergency source of electrical power, declutch button and the control contactor that declutches coil tandem described emergency source of electrical power a pair of first output exit between, the coil tandem of a pair of open contact of hypervelocity sensor and hypervelocity reset button and hypervelocity control contactor is between a pair of first output exit of described emergency source of electrical power, and a pair of open contact of hypervelocity control contactor is attempted by the two ends of a pair of open contact of described hypervelocity sensor;
The coil tandem of a pair of open contact of braking limit sensors and the spacing contactless switch of corresponding braking is between a pair of second output exit of emergency source of electrical power, and the coil tandem of a pair of normally closed contact of the limit sensors that declutches and the spacing contactless switch that declutches accordingly is between a pair of second output exit of described emergency source of electrical power;
The a pair of open contact of a pair of open contact of braking control contactor and hypervelocity control contactor and connect after drive contactless switch with a pair of open contact and the corresponding braking of the spacing contactless switch of braking coil tandem between a pair of second output exit of described emergency source of electrical power, a pair of open contact of the control contactor that declutches be connected in series a pair of normally closed contact of rear and the spacing contactless switch that declutches with a pair of normally closed contact of hypervelocity control contactor and the coil tandem of the driving contactless switch that declutches is accordingly exported between exit at second of described emergency source of electrical power;
a mouth of the first output exit is connected with an input end of corresponding emergency brake motor by a pair of open contact that corresponding braking drives contactless switch, the a pair of open contact that drives contactless switch by declutching accordingly is connected with another input end of described corresponding emergency brake motor, another mouth of the first output exit drive contactless switch by corresponding braking another open contact is connected with another input end of described corresponding emergency brake motor, another that drives contactless switch by declutching accordingly is connected with an input end of described corresponding emergency brake motor to open contact.
2. emergency brake circuit as claimed in claim 1, it is characterized in that: described emergency source of electrical power is battery pack.
3. emergency brake circuit as claimed in claim 2, it is characterized in that: described emergency brake circuit also comprises the ac-dc switching power of promising battery charging, be provided with charging current limiter resistance between the positive pole of ac-dc switching power and the positive pole of battery pack, the negative pole of ac-dc switching power and the negative pole of battery pack are provided with storage battery charge control circuit between battery pack and ac-dc switching power altogether.
4. emergency brake circuit as claimed in claim 3, it is characterized in that: described storage battery charge control circuit comprises: exchange the dead electricity control contactor, accumulator electric-quantity detects table, charging control contactor and be full of control contactor, the coil that exchanges the dead electricity control contactor is attempted by on the ac input circuit of ac-dc switching power, the power end that accumulator electric-quantity detects table is connected with the positive output end of a pair of first output exit of battery pack by a pair of open contact that exchanges the dead electricity control contactor, the ground terminal that accumulator electric-quantity detects table is connected with the negative output terminal of a pair of first output exit of battery pack, the two ends that are full of the coil of control contactor are connected with the control output end of accumulator electric-quantity detection table and the ground terminal of accumulator electric-quantity detection table respectively, after being full of the coil tandem of a pair of open contact of control contactor and the control contactor that charges, detecting with accumulator electric-quantity the power end of showing respectively is connected with ground terminal, be serially connected with another a pair of open contact to open contact and charging control contactor that exchanges the dead electricity control contactor between the positive pole of described charging current limiter resistance and battery pack, consist of the charging control path, the positive output end of described a pair of the second output exit is connected with the positive output of ac-dc switching power by the 3rd pair of open contact that exchanges the dead electricity control contactor.
5. emergency brake circuit as claimed in claim 4, is characterized in that: also be provided with charging control switch between the positive pole of described battery pack and charging control path.
6. emergency brake circuit as claimed in claim 4, is characterized in that: be provided with the duplex change-over switch between the both positive and negative polarity of described battery pack and described a pair of the first output exit.
7. emergency brake circuit as described in claim 2 to 6 any one, it is characterized in that: a pair of open contact of described braking control contactor, the control contactor that declutches, hypervelocity control contactor and connect after, the positive output end that is serially connected in a pair of second output exit of described battery pack is exported between the positive output end of exit with a pair of first.
8. emergency brake circuit as claimed in claim 7, it is characterized in that: also include in described emergency brake circuit and brake the spacing lamp of braking that limit sensors quantity equates, the spacing lamp that declutches that equates with the limit sensors quantity that declutches, another that brake spacing lamp and the spacing contactless switch of corresponding braking is serially connected between described a pair of the second output exit normally closed contact, and another of declutch spacing lamp and the spacing contactless switch that declutches accordingly is serially connected in described a pair of second to normally closed contact and exports between exit.
9. emergency brake circuit as claimed in claim 7 is characterized in that: also include the hypervelocity indicator lamp in described emergency brake circuit, another of hypervelocity indicator lamp and hypervelocity sensor is serially connected in described a pair of first to open contact and exports between exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175587 CN203269383U (en) | 2013-04-09 | 2013-04-09 | Emergency braking circuit of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175587 CN203269383U (en) | 2013-04-09 | 2013-04-09 | Emergency braking circuit of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203269383U true CN203269383U (en) | 2013-11-06 |
Family
ID=49499835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175587 Withdrawn - After Issue CN203269383U (en) | 2013-04-09 | 2013-04-09 | Emergency braking circuit of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203269383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204436A (en) * | 2013-04-09 | 2013-07-17 | 江苏万富安机械有限公司 | Emergency brake circuit of starter |
| CN103979420A (en) * | 2014-04-29 | 2014-08-13 | 南通中远船务自动化有限公司 | Power-off brake buffer device for large-scale gantry crane |
-
2013
- 2013-04-09 CN CN 201320175587 patent/CN203269383U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204436A (en) * | 2013-04-09 | 2013-07-17 | 江苏万富安机械有限公司 | Emergency brake circuit of starter |
| CN103204436B (en) * | 2013-04-09 | 2014-08-20 | 江苏万富安机械有限公司 | Emergency brake circuit of starter |
| CN103979420A (en) * | 2014-04-29 | 2014-08-13 | 南通中远船务自动化有限公司 | Power-off brake buffer device for large-scale gantry crane |
| CN103979420B (en) * | 2014-04-29 | 2015-11-11 | 南通中远船务自动化有限公司 | Large-sized gantry crane dead electricity brake buffer unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203269383U (en) | Emergency braking circuit of starter | |
| CN203799965U (en) | Pulse polarity conversion module of composite switch | |
| CN202758490U (en) | Traffic light possessing power-off detection function | |
| CN103204436B (en) | Emergency brake circuit of starter | |
| CN203675030U (en) | AC servo driving system | |
| CN205001611U (en) | Solar energy intelligence electric actuator | |
| CN102307035B (en) | Novel management and control system of mining lithium iron phosphate direct current series excitation chopping speed regulation electric locomotive | |
| CN204915333U (en) | Solar energy electric vehicle charging controlling means | |
| CN103522916A (en) | Double power sources switching control system of electric car | |
| CN203528320U (en) | Double-power-supply switching control system of electric vehicle | |
| CN206012359U (en) | A kind of intelligent charging spot | |
| CN202183615U (en) | External balancing device of series lithium battery pack | |
| CN204481531U (en) | A kind of electric automobile lithium battery active equalization management system | |
| CN204905990U (en) | Quick auto -change over device of incessant DC power supply | |
| CN203617776U (en) | Drive DC bus pre-charge circuit for backup power supply of variable pitch system | |
| CN202272647U (en) | Control circuit and crane using control circuit | |
| CN202405839U (en) | Storage battery charging parallel connection device | |
| CN206077063U (en) | A kind of relay power control circuit of new forms of energy | |
| CN201694703U (en) | Electric elevator utilizing new energy and provided with battery jars | |
| CN203117213U (en) | A centrifugal bidirectional speed relay | |
| CN204559194U (en) | A kind of many group storage batterys grouping charging device simultaneously | |
| CN202625316U (en) | Discharging baffle regulating mechanism of lead storage silo | |
| CN202879393U (en) | Novel electric vehicle combined by large motor and small motor | |
| CN204316165U (en) | A kind of battery charging intelligent controlling device | |
| CN208522529U (en) | The dynamic inspection robot power supply system of one kind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20140820 |
|
| RGAV | Abandon patent right to avoid regrant |