CN204369440U - Crown block control device - Google Patents
Crown block control device Download PDFInfo
- Publication number
- CN204369440U CN204369440U CN201420736092.5U CN201420736092U CN204369440U CN 204369440 U CN204369440 U CN 204369440U CN 201420736092 U CN201420736092 U CN 201420736092U CN 204369440 U CN204369440 U CN 204369440U
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- CN
- China
- Prior art keywords
- contactless switch
- intermediate relay
- switch group
- contact
- control device
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- 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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- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 13
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a crown block control device belongs to electrical apparatus control technical field. The overhead traveling crane control device includes: control handle and contactor unit, control handle includes scram button, opens and stops button and 6 point and moves the button, the contactor unit includes mainly contactor group and reserve contactor group, mainly use contactor group with reserve contactor group includes 6 contactors respectively, overhead traveling crane controlling means still includes at least one auxiliary relay. Through the design of the double contact set, the common overhead traveling crane control device with only one set of contactors is replaced, so that when the outgoing line of the main contact set fails, the main contact set can be quickly switched to the standby contact set to continue production, the probability of halt due to failure is greatly reduced, and the safety and reliability of equipment and the working efficiency of the overhead traveling crane are improved.
Description
Technical field
The utility model belongs to technical field of electric device control, particularly a kind of control device of crown block.
Background technology
Control device of crown block a kind ofly controls the electric apparatus control apparatus that overhead traveling crane completes various action.Control device of crown block common at present mainly comprises contactless switch group and control handle, and wherein contactless switch group only has one group on every frame overhead traveling crane, and the top and the electric hoist of crown block that are generally all arranged on electric hoist of crown block are integrated.Once the contactless switch group in work breaks down, just necessary parking maintenance, causes production work to stop, causing serious impact to economic benefit.
Utility model content
In order to solve the problem of prior art, the utility model embodiment provides a kind of control device of crown block.Described technical scheme is as follows:
The utility model embodiment provides a kind of control device of crown block, comprise: control handle and contact unit, described control handle comprises scram button, start-stop button and 6 inching buttons, described 6 inching buttons comprise up inching button, descending inching button, left lateral inching button, right lateral inching button, move ahead inching button and rear row inching button, described contact unit comprises primary contactless switch group and contactless switch group for subsequent use, described primary contactless switch group and described contactless switch group for subsequent use comprise 6 contactless switchs respectively, described control device of crown block also comprises at least one intermediate relay,
One end of described 6 inching buttons is electrically connected with one end of described start-stop button simultaneously, the other end of described start-stop button is electrically connected with the live wire in three phase mains, one end of described scram button is electrically connected with the coil terminals of at least one intermediate relay described, and the other end of described scram button is electrically connected with the live wire in described three phase mains;
At least one intermediate relay described comprises 6 groups of contacts, often organize described contact comprise the first contact to the second contact pair, described first contact to described second contact to including an open contact and a normally closed contact, 6 described first contacts to being electrically connected with the other end of described 6 inching buttons respectively, the open contact of described first contact centering and normally closed contact short circuit;
The normally closed contact of 6 at least one intermediate relay described described second contact centerings is electrically connected with the coil terminals in 6 contactless switchs in described primary contactless switch group respectively, the open contact of 6 at least one intermediate relay described described second contact centerings is electrically connected with the coil terminals in 6 contactless switchs in described contactless switch group for subsequent use respectively, and another coil terminals at least one intermediate relay described is electrically connected with the zero line in described three phase mains;
Described primary contactless switch group is connected with the zero line in described three phase mains with another coil terminals of the contactless switch in described contactless switch group for subsequent use, the input end of the contactless switch in described primary contactless switch group and described contactless switch group for subsequent use is all electrically connected with the live wire in described three phase mains, the mouth of the contactless switch in described primary contactless switch group and described contactless switch group for subsequent use is electrically connected with three motors of hoist ceiling crane in overhead traveling crane respectively, and the mouth being connected to two described contactless switchs on the open contact of same described second contact centering and normally closed contact is electrically connected with same motor.
In another kind of implementation of the present utility model, described control handle is COB-64HB type control handle.
In another kind of implementation of the present utility model, described primary contactless switch group is identical with the model of the contactless switch in described contactless switch group for subsequent use.
In another kind of implementation of the present utility model, the AC contactor of described contactless switch to be coil voltage be alternating current 220V.
In another kind of implementation of the present utility model, described contactless switch is CJT1-20A type contactless switch.
In another kind of implementation of the present utility model, described control device of crown block comprises two intermediate relays.
In another kind of implementation of the present utility model, described two intermediate relays are respectively the first intermediate relay and the second intermediate relay, and described first intermediate relay and described second intermediate relay include 4 groups of contacts.
In another kind of implementation of the present utility model, described first intermediate relay is identical with the model of described second intermediate relay.
In another kind of implementation of the present utility model, described first intermediate relay and described second intermediate relay are ARL4F AC220V type intermediate relay.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By the design of Dual-contack device group, primary totally two groups of identical contactless switch groups for subsequent use are set in contact unit, and the switching utilizing the first intermediate relay and the second intermediate relay to realize between two groups of contactless switch groups.Particularly, 6 contactless switchs in primary contactless switch group are electrically connected with 6 normally closed contacts in the first intermediate relay and the second intermediate relay respectively, 6 contactless switchs in contactless switch group for subsequent use are electrically connected with 6 open contacts in the first intermediate relay and the second intermediate relay respectively, when primary contactless switch group breaks down, can manually to upspring immediately scram button, the magnet coil of the first intermediate relay and the second intermediate relay is energized simultaneously, make often to make war adhesive, normally closed disconnection, thus reach the contactless switch group for subsequent use switching to fast and can normally work, and continue the object of production work, solve the problem delaying production task because of contactless switch group fault.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of control device of crown block circuit diagram that the utility model provides;
Fig. 2 is input end and the mouth schematic diagram of the contactless switch that the utility model provides;
In figure, each symbol represents that implication is as follows:
KM1-KM12 is contactless switch, JD1-first intermediate relay, JD2-second intermediate relay, A1, A2-coil terminals, 1-control handle, 2-contact unit, 3-intermediate relay, 11-scram button, 12-start-stop button, 13-inching button, the primary contactless switch group of 21-, 22-contactless switch group for subsequent use, the up inching button of 131-, the descending inching button of 132-, 133-left lateral inching button, 134-right lateral inching button, 135-moves ahead inching button, row inching button after 136-, L1-L3 is live wire, N-zero line.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment
A kind of control device of crown block that the utility model provides, as shown in Figure 1-2, this control device of crown block comprises control handle 1, contact unit 2, control handle 1 comprise scram button 11, start-stop button 12 and 6 inching buttons 13, contact unit 2 comprises primary contactless switch group 21 and contactless switch group 22 for subsequent use, primary contactless switch group 21 and contactless switch group 22 for subsequent use comprise 6 contactless switchs respectively, and control device of crown block also comprises at least one intermediate relay 3.
One end of 6 inching buttons 13 is all electrically connected with one end of start-stop button 12, the other end of start-stop button 12 is electrically connected with the live wire in three phase mains, one end of scram button 11 is electrically connected with the coil terminals (A2 terminal) of at least one intermediate relay 3, and the other end of scram button 11 is electrically connected with the live wire in three phase mains.
At least one intermediate relay 3 comprises 6 groups of contacts, often organize contact and comprise the first contact to B1 and the second contact to B2, first contact includes an open contact and a normally closed contact to B1 and the second contact to B2,6 the first contacts are electrically connected with the other end of 6 inching buttons 13 respectively to B1, and the first contact is to the open contact in B1 and normally closed contact short circuit;
6 the second contacts at least one intermediate relay 3 are electrically connected with the coil terminals (A2 terminal) in 6 contactless switchs in primary contactless switch group 21 respectively to the normally closed contact in B2,6 the second contacts at least one intermediate relay 3 are electrically connected with the coil terminals (A2 terminal) in 6 contactless switchs in contactless switch group 22 for subsequent use respectively to the open contact in B2, and another coil terminals (A1 terminal) at least one intermediate relay 3 is electrically connected with the zero line in three phase mains.
Primary contactless switch group 21 is connected with the zero line in three phase mains with another coil terminals (A1 terminal) of the contactless switch in contactless switch group 22 for subsequent use, the input end of the contactless switch in primary contactless switch group 21 and contactless switch group 22 for subsequent use is all electrically connected with the live wire in three phase mains, the mouth of the contactless switch in primary contactless switch group 21 and contactless switch group 22 for subsequent use is electrically connected with three motors of hoist ceiling crane in overhead traveling crane respectively, and is connected to the mouth of same second contact to the contactless switch of two on the open contact in B2 and normally closed contact and is electrically connected with same motor.
As shown in Figure 1, control device of crown block comprises two intermediate relays 3.
Particularly, two intermediate relays 3 are respectively the first intermediate relay JD1 and the second intermediate relay JD2, first intermediate relay JD1 and the second intermediate relay JD2 includes 4 groups of contacts, and two groups of contacts wherein in the second intermediate relay JD2 are in idle condition.
More specifically, the first intermediate relay JD1 is identical with the model of the second intermediate relay JD2.Preferably, the first intermediate relay JD1 and the second intermediate relay JD2 is ARL4F AC220V type intermediate relay.
As shown in Figure 1, primary contactless switch group 21 comprises contactless switch KM7-KM12, and contactless switch group 22 for subsequent use comprises contactless switch KM1-KM6.6 inching buttons 13 comprise up inching button 131, descending inching button 132, left lateral inching button 133, right lateral inching button 134, move ahead inching button 135 and rear row inching button 136.During normal work, scram button 11 is in closure state, presses start-stop button 12, presses up inching button 131 control KM7 adhesive, and traveling hoist crane rises; Press descending inching button 132 control KM8 adhesive, traveling hoist crane declines; Press left lateral inching button 133 control KM9 adhesive, traveling hoist crane left lateral; Press right lateral inching button 134 control KM10 adhesive, traveling hoist crane right lateral; Press the inching button 135 control KM11 adhesive that moves ahead, traveling hoist crane moves ahead; Press rear row inching button 136 control KM12 adhesive, row after traveling hoist crane.When breaking down in dominant touch device group 22, scram button 11 of manually upspringing, presses up inching button 131 control KM1 adhesive, and traveling hoist crane rises; Press descending inching button 132 control KM2 adhesive, traveling hoist crane declines; Press left lateral inching button 133 control KM3 adhesive, traveling hoist crane left lateral; Press right lateral inching button 134 control KM4 adhesive, traveling hoist crane right lateral; Press the inching button 135 control KM5 adhesive that moves ahead, traveling hoist crane moves ahead; Press rear row inching button 136 control KM6 adhesive, row after traveling hoist crane.
As shown in Figure 2, because KM1 and KM7 connects with a pair open contact and normally closed contact respectively, active and standby part contactless switch each other, therefore the mouth of KM1 with KM7 is connected same motor, controls hoisting crane and rises, corresponding, KM2 and KM8 is also connected on same motor, controls hoisting crane and declines.Again as mentioned before, KM1 and KM2 belongs to contactless switch group for subsequent use, and control rotating and reverse of motor respectively, thus realize the control of uplink and downlink, therefore KM1 and KM2 is also connected on same motor, therefore KM1, KM2, KM7 and KM8 are connected to same motor.In like manner, KM3, KM4, KM9 and KM10 are connected to same motor, and KM5, KM6, KM11 and KM12 are connected to same motor.
Under normal circumstances, scram button 11 is pressed, now the first intermediate relay JD1 and the second intermediate relay JD2 all no powers, and normally closed point is closure state, normal battle is off-state, can control primary contactless switch group 21 complete production action by inching button 13.When primary contactless switch group 21 et out of order, manually upspring scram button 11, the first intermediate relay JD1 and the second intermediate relay JD2 is energized, normally closed disconnection, normal battle closes, and now controls contactless switch group 22 for subsequent use by inching button 13 and normally completes production action.Not only avoid and delay production because of maintenance contactless switch group, decrease economic loss; And scram button 11 normally work time be in down state, button false touch can be prevented.
In addition, when primary contactless switch group 21 breaks down, contactless switch group 22 for subsequent use can be switched to continue production work by primary contactless switch group 21, more primary contactless switch 21 be keeped in repair after having waited production work complete; Same, when contactless switch group 22 for subsequent use breaks down, primary contactless switch group 21 can be switched to continue production work by contactless switch group 22 for subsequent use, again contactless switch group 22 for subsequent use be keeped in repair after having waited production work complete.So, no matter which group contactless switch breaks down, and can enable another group contactless switch timely and work on, ensure that the continuous operation of overhead traveling crane, greatly reduce the probability of shutting down because of fault, improve the safe reliability of equipment and the work efficiency of overhead traveling crane.
Preferably, control handle 1 is COB-64HB type control handle.
In the present embodiment, primary contactless switch group 21 is identical with the model of the contactless switch in contactless switch group 22 for subsequent use.The AC contactor of to be coil voltage the be alternating current 220V of the contactless switch in primary contactless switch group 21 and contactless switch group 22 for subsequent use.Preferably, above-mentioned contactless switch is CJT1-20A type contactless switch.
The utility model is by the design of Dual-contack device group; instead of the now common control device of crown block only having one group of contactless switch; make when primary contactless switch group outlet fault; contactless switch group for subsequent use can be switched to by fast speed; continue production work; greatly reduce the probability of shutting down because of fault, improve the safe reliability of equipment and the work efficiency of overhead traveling crane.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a control device of crown block, comprise control handle and contact unit, described control handle comprises scram button, start-stop button and 6 inching buttons, described 6 inching buttons comprise up inching button, descending inching button, left lateral inching button, right lateral inching button, move ahead inching button and rear row inching button, it is characterized in that, described contact unit comprises primary contactless switch group and contactless switch group for subsequent use, described primary contactless switch group and described contactless switch group for subsequent use comprise 6 contactless switchs respectively, described control device of crown block also comprises at least one intermediate relay,
One end of described 6 inching buttons is electrically connected with one end of described start-stop button simultaneously, the other end of described start-stop button is electrically connected with the live wire in three phase mains, one end of described scram button is electrically connected with the coil terminals of at least one intermediate relay described, and the other end of described scram button is electrically connected with the live wire in described three phase mains;
At least one intermediate relay described comprises 6 groups of contacts, often organize described contact comprise the first contact to the second contact pair, described first contact to described second contact to including an open contact and a normally closed contact, 6 described first contacts to being electrically connected with the other end of described 6 inching buttons respectively, the open contact of described first contact centering and normally closed contact short circuit;
The normally closed contact of 6 at least one intermediate relay described described second contact centerings is electrically connected with the coil terminals in 6 contactless switchs in described primary contactless switch group respectively, the open contact of 6 at least one intermediate relay described described second contact centerings is electrically connected with the coil terminals in 6 contactless switchs in described contactless switch group for subsequent use respectively, and another coil terminals at least one intermediate relay described is electrically connected with the zero line in described three phase mains;
Described primary contactless switch group is connected with the zero line in described three phase mains with another coil terminals of the contactless switch in described contactless switch group for subsequent use, the input end of the contactless switch in described primary contactless switch group and described contactless switch group for subsequent use is all electrically connected with the live wire in described three phase mains, the mouth of the contactless switch in described primary contactless switch group and described contactless switch group for subsequent use is electrically connected with three motors of hoist ceiling crane in overhead traveling crane respectively, and the mouth being connected to two described contactless switchs on the open contact of same described second contact centering and normally closed contact is electrically connected with same motor.
2. control device of crown block according to claim 1, is characterized in that, described control handle is COB-64HB type control handle.
3. control device of crown block according to claim 1, is characterized in that, described primary contactless switch group is identical with the model of the contactless switch in described contactless switch group for subsequent use.
4. control device of crown block according to claim 3, is characterized in that, the AC contactor of described contactless switch to be coil voltage be alternating current 220V.
5. the control device of crown block according to claim 3 or 4, is characterized in that, described contactless switch is CJT1-20A type contactless switch.
6. control device of crown block according to claim 1, is characterized in that, described control device of crown block comprises two intermediate relays.
7. control device of crown block according to claim 6, is characterized in that, described two intermediate relays are respectively the first intermediate relay and the second intermediate relay, and described first intermediate relay and described second intermediate relay include 4 groups of contacts.
8. the control device of crown block according to claim 6 or 7, is characterized in that, described first intermediate relay is identical with the model of described second intermediate relay.
9. control device of crown block according to claim 8, is characterized in that, described first intermediate relay and described second intermediate relay are ARL4F AC220V type intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736092.5U CN204369440U (en) | 2014-11-28 | 2014-11-28 | Crown block control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736092.5U CN204369440U (en) | 2014-11-28 | 2014-11-28 | Crown block control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204369440U true CN204369440U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420736092.5U Expired - Fee Related CN204369440U (en) | 2014-11-28 | 2014-11-28 | Crown block control device |
Country Status (1)
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| CN (1) | CN204369440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421031A (en) * | 2017-08-21 | 2019-03-05 | 宝时得科技（中国）有限公司 | A kind of electric tool and its motor positive and inverse control method and device |
-
2014
- 2014-11-28 CN CN201420736092.5U patent/CN204369440U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421031A (en) * | 2017-08-21 | 2019-03-05 | 宝时得科技（中国）有限公司 | A kind of electric tool and its motor positive and inverse control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |