CN105480862B - A kind of safe control switch used in tower crane - Google Patents
A kind of safe control switch used in tower crane Download PDFInfo
- Publication number
- CN105480862B CN105480862B CN201511019254.9A CN201511019254A CN105480862B CN 105480862 B CN105480862 B CN 105480862B CN 201511019254 A CN201511019254 A CN 201511019254A CN 105480862 B CN105480862 B CN 105480862B
- Authority
- CN
- China
- Prior art keywords
- contact
- pull bar
- flexible axle
- action bars
- tower crane
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Mechanical Control Devices (AREA)
- Jib Cranes (AREA)
Abstract
The present invention proposes the safe control switch used in a kind of tower crane, including upper handle, flexible axle pull bar, lower handle, retractor device, action bars, contact apparatus and semiaxis, the lower end of action bars is fixed on semiaxis, it is inserted in handle in the upper end of action bars, lower handle, which can slide up and down, to be connected on action bars and positioned at the bottom of upper handle, flexible axle pull bar, which can slide up and down, is installed on the inside of action bars, retractor device is provided between upper handle and lower handle, contact apparatus is arranged at the lower end of flexible axle pull bar, contact sliding block on pressing contact is slided up and down so as to control the break-make of tower crane circuit system by flexible axle pull bar, the present invention on the control switch of tower crane by setting contact apparatus, the break-make of the whole circuit of tower crane is controlled by controlling contact apparatus, when the uncontrollable factor of other external force such as people's generation stupor, as long as hand unclamps, action bars can stop machine in any position, realize safeguard protection.
Description
Technical field
The present invention relates to tower crane equipment technical field, and in particular to the safe control switch used in a kind of tower crane.
Background technology
General tower crane is all controlled by master controller, during operation, lifts lower handle manipulation operations bar, and tower crane is just opened
Initiating is made, but acts tower crane stopping, and action bars homing, i.e. action bars must be allowed to keep vertical position first；Also
To say in operation, i.e., action bars with it is vertical angled when, tower crane can not be allowed to stop, this will result in certain peace
Full hidden danger, such as operator's stupor, death etc., now, because people loses consciousness, if the tower crane that work can not be allowed stops fortune
OK, then it is possible that serious consequence.
The content of the invention
The present invention provides the safe control switch used in a kind of tower crane, solves the shutdown operation of tower crane in the prior art
The problem of there is above-mentioned hidden danger.
The present invention realizes that the technical scheme that above-mentioned technique effect is used is：
The safe control switch used in a kind of tower crane, including upper handle, flexible axle pull bar, lower handle, retractor device, operation
Bar, contact apparatus and semiaxis, the lower end of the action bars are fixed on semiaxis, and handle, institute are inserted in the upper end of the action bars
State lower handle and can slide up and down and be connected on action bars and positioned at the bottom of upper handle, the flexible axle pull bar can slide up and down
The inside of action bars is installed on, retractor device is provided between the upper handle and lower handle, the contact apparatus is arranged at soft
The lower end of axle pull bar, described device includes contact pedestal, the contact on contact pedestal and is arranged on contact to be used to control
The contact sliding block of the whole connecting and disconnecting of the circuit of tower crane system processed, is slided by the contact on pressing contact that slides up and down of the flexible axle pull bar
Block is so as to control the break-make of tower crane circuit system.
Further, the retractor device include action bars upper end on slot, the circular hole of flexible axle pull bar upper end,
The action bars and flexible axle pull bar are connected with each other by elastic cylindrical pin and spring, the elastic cylindrical pin through slot and circular hole
And make flexible axle pull bar be limited in slot to slide up and down, the spring is placed on action bars upper end and one end connects with upper handle contact
Connect, the other end is connected with elastic cylinder pin contacts, when lower handle is up carried, lower handle drives elastic cylindrical pin then to drive
Flexible axle pull bar is up moved, when unclamping hand, is promoted elastic cylindrical pin to move downward by the effect of spring and is then driven flexible axle
Pull bar is down moved.
Further, being provided at both ends between rigid termination, the termination at two ends for the flexible axle pull bar is provided with
Bowden cable.
Further, the contact is normally closed interlock.
According to above technical scheme, when lower handle does not lift, by the active force of spring, flexible axle pull bar is pushed, soft
Contact sliding block jacking on the contact of axle pull bar lower end is gone, and disconnects normally closed interlock, and then disconnects the whole circuit of tower crane, this
When, even if manipulation operations bar, tower crane will not also make corresponding action, and when lifting lower handle, flexible axle pull bar is also put on
Come, because contact sliding block is not under pressure, contact sliding block returns to normality by the spring ejection inside contact, contact closure,
Connect the whole circuit of tower crane, tower crane recovers normal working condition.
Beneficial effects of the present invention are：The present invention passes through control by setting contact apparatus on the control switch of tower crane
Contact apparatus controls the break-make of the whole circuit of tower crane, when the uncontrollable factor of other external force such as stupor occurs for people, as long as hand
Unclamp, action bars can stop machine, realize safeguard protection in any position.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below by using required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without having to pay creative labor, it can also obtain other according to these accompanying drawings
Accompanying drawing.
The structural representation for the safe control switch that Fig. 1 is used in a kind of tower crane for the present invention；
In figure：The upper handles of 1-；2- flexible axle pull bars；3- lower handles；5- action bars；6- contact apparatus；7- semiaxis；8- kidneys
Hole；9- circular holes；10- elastic cylindrical pins；11- springs；12- contacts；13- contact sliding blocks.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Embodiment 1
As shown in figure 1, the safe control switch used in a kind of tower crane, including upper handle 1, flexible axle pull bar 2, lower handle 3,
Retractor device, action bars 5, contact apparatus 6 and semiaxis 7, the lower end of action bars 5 are fixed on semiaxis 7, the upper end set of action bars 5
Enter upper handle 1, lower handle 3, which can slide up and down, to be connected on action bars 5 and positioned at the bottom of upper handle 1, flexible axle pull bar 2 can on
The inside for being installed on action bars 5 of lower slider, is provided with retractor device between upper handle 1 and lower handle 3, retractor device includes behaviour
Make slot 8, the circular hole 9 of flexible axle pull bar upper end, elastic cylindrical pin 10 and the spring 11 on bar upper end, elastic cylindrical pin 10
The action bars 5 and flexible axle pull bar 2 are connected with each other through slot 8 and circular hole 9 and flexible axle pull bar is limited in slot
Slide up and down, spring 11 is placed on the upper end of action bars 5 and one end contacts connection with upper handle 1, and the other end connects with elastic cylindrical pin 10
Connection is touched, when lower handle 3 is up carried, lower handle 3 drives elastic cylindrical pin 10 then to drive flexible axle pull bar 2 up to move,
When unclamping hand, promote elastic cylindrical pin 10 to move downward by the effect of spring 11 and then drive flexible axle pull bar down to move,
Contact apparatus is arranged at the lower end of flexible axle pull bar, including contact pedestal, the contact 12 on contact pedestal and is arranged on tactile
It is used for the contact sliding block 13 for controlling the whole connecting and disconnecting of the circuit of tower crane system on head, contact 12 is normally closed interlock, under normal conditions, contact 12
It is closure, the contact sliding block 13 on pressing contact is slided up and down so as to control tower crane system electricity by the flexible axle pull bar 2
The break-make on road, it is soft that being provided at both ends between rigid termination, the termination at two ends of the flexible axle pull bar 2 is provided with steel wire
Axle, therefore, when lower handle does not lift, can also manipulation operations bar, now pull bar bend, but due to contact be disconnect, tower
The whole circuit of machine disconnects, so tower crane will not also be acted.
During installation, flexible axle pull bar 2 first pierces into the inside of action bars 5, the slot 8 of action bars 5 and the circular hole 9 of flexible axle pull bar
In alignment, the circular hole for elastic cylindrical pin 10 being driven in flexible axle pull bar 2, flexible axle pull bar 2 is set to be limited to the slot 8 of action bars upper end
In, flexible axle pull bar 2 can be moved up and down in the range of slot inside action bars 8；Again spring is put into the upper end of action bars 5
Afterwards, handle on screw-in.
When lower handle 3 does not lift, by the active force of spring 11, flexible axle pull bar 2 is pushed, the lower end of flexible axle pull bar 2
The jacking of contact sliding block 13 on contact is gone, and disconnects normally closed interlock, and then disconnects the whole circuit of tower crane, now, even if behaviour
Vertical action bars 5, tower crane will not also make corresponding action, and when lifting lower handle 3, flexible axle pull bar 2 is also brought up, due to
Contact sliding block 13 is not under pressure, and contact sliding block 13 returns to normality by the spring ejection inside contact, and contact closure makes
The whole circuit of tower crane is connected, and tower crane recovers normal working condition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (3)
1. the safe control switch used in a kind of tower crane, including upper handle, flexible axle pull bar, lower handle, retractor device, operation
Bar, contact apparatus and semiaxis, it is characterised in that the lower end of the action bars is fixed on semiaxis, the upper end set of the action bars
Enter upper handle, the lower handle, which can slide up and down, to be connected on action bars and positioned at the bottom of upper handle, the flexible axle pull bar
It can slide up and down and be installed on the inside of action bars, retractor device, the contact are provided between the upper handle and lower handle
Device is arranged at the lower end of flexible axle pull bar, and the contact apparatus includes contact pedestal, the contact on contact pedestal and set
Put is used to control the contact sliding block of the whole connecting and disconnecting of the circuit of tower crane system on contact, by the flexible axle pull bar slide up and down by
Contact sliding block on pressure contact is so as to control the break-make of tower crane circuit system, and the retractor device is included on action bars upper end
Slot, circular hole, elastic cylindrical pin and the spring of flexible axle pull bar upper end, the elastic cylindrical pin pass through slot and circular hole will
Action bars and the flexible axle pull bar is connected with each other and flexible axle pull bar is limited in slot and slides up and down, and the spring is placed on behaviour
Make bar upper end and one end is connected with upper handle contact, the other end is connected with elastic cylinder pin contacts.
2. the safe control switch used in a kind of tower crane according to claim 1, it is characterised in that the flexible axle pull bar
Be provided at both ends between rigid termination, the termination at two ends and be provided with Bowden cable.
3. the safe control switch used in a kind of tower crane according to claim 1, it is characterised in that the contact is normal
Close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019254.9A CN105480862B (en) | 2015-12-30 | 2015-12-30 | A kind of safe control switch used in tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019254.9A CN105480862B (en) | 2015-12-30 | 2015-12-30 | A kind of safe control switch used in tower crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480862A CN105480862A (en) | 2016-04-13 |
| CN105480862B true CN105480862B (en) | 2017-11-03 |
Family
ID=55668204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019254.9A Active CN105480862B (en) | 2015-12-30 | 2015-12-30 | A kind of safe control switch used in tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105480862B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555463A (en) * | 1941-09-20 | 1943-08-24 | Igranic Electric Co Ltd | Improvements in or relating to crane limit switches |
| CN2535392Y (en) * | 2002-04-16 | 2003-02-12 | 浙江箭环电器机械有限公司 | Combined control stand for crane |
| CN202657856U (en) * | 2012-07-11 | 2013-01-09 | 浙江三港起重电器有限公司 | Secondary loop master controller for construction lift |
| CN204569198U (en) * | 2015-04-07 | 2015-08-19 | 扬戈科技股份有限公司 | A kind of novel main signaling controller |
| CN205442420U (en) * | 2015-12-30 | 2016-08-10 | 浙江箭环电气开关有限公司 | Safe master switch who uses on tower machine |
-
2015
- 2015-12-30 CN CN201511019254.9A patent/CN105480862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555463A (en) * | 1941-09-20 | 1943-08-24 | Igranic Electric Co Ltd | Improvements in or relating to crane limit switches |
| CN2535392Y (en) * | 2002-04-16 | 2003-02-12 | 浙江箭环电器机械有限公司 | Combined control stand for crane |
| CN202657856U (en) * | 2012-07-11 | 2013-01-09 | 浙江三港起重电器有限公司 | Secondary loop master controller for construction lift |
| CN204569198U (en) * | 2015-04-07 | 2015-08-19 | 扬戈科技股份有限公司 | A kind of novel main signaling controller |
| CN205442420U (en) * | 2015-12-30 | 2016-08-10 | 浙江箭环电气开关有限公司 | Safe master switch who uses on tower machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480862A (en) | 2016-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
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Address after: 322000 building 3, 139 jingsan Road, Beiyuan street, Yiwu City, Jinhua City, Zhejiang Province Patentee after: Zhejiang Jianhuan Electric Co.,Ltd. Address before: No. 37-1, Chengzhong North Road, Chocheng Street, Yiwu City, Jinhua City, Zhejiang Province, 322099 Patentee before: ZHEJIANG JIANHUAN ELECTRIC SWITCH CO.,LTD. |
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| CP03 | Change of name, title or address |