CN106744402A - Tower crane rotation dead electricity control system - Google Patents
Tower crane rotation dead electricity control system Download PDFInfo
- Publication number
- CN106744402A CN106744402A CN201710148772.3A CN201710148772A CN106744402A CN 106744402 A CN106744402 A CN 106744402A CN 201710148772 A CN201710148772 A CN 201710148772A CN 106744402 A CN106744402 A CN 106744402A
- Authority
- CN
- China
- Prior art keywords
- tower crane
- control system
- dead electricity
- brake
- power source
- 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.)
- Pending
Links
Classifications
-
- 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
- B66C23/94—Safety gear for limiting slewing movements
Abstract
A kind of tower crane rotation dead electricity control system, it is mainly and is respectively arranged with electromagnetic brake and braked wheel in the output shaft of fluid coupling and the power input shaft of revolution driving reductor, one brake fluid cylinder pressure is set on described braked wheel side, the piston rod of described brake fluid cylinder pressure is connected with brake apparatus, a power source hydraulic cylinder is also set up in the driver's cabin of tower crane, the piston rod of power source hydraulic cylinder is connected with manipulation device, it is connected with hydraulic tube between brake fluid cylinder pressure and the working chamber of power source hydraulic cylinder, near the position of manipulation device, one normally opened travel switch is being set, the present invention can avoid tower crane in the case of power-off suddenly with the security incident that may be brought by coasting.
Description
Technical field
The present invention relates to derrick crane, more particularly to tower crane rotation dead electricity control system, belong to tower lifting
Machine technical field.
Background technology
It is known that：The brakes of existing derrick crane is all open type, i.e.,：It is place under the revolution situation that works
In the on-position for combining, and in the state of dead electricity, brake is in the state for disengaging, using the purpose of this braking method
It is：When tower crane is in idle state, allow the rotating part of tower crane to be in the state for rotating freely, adapt to different wind directions,
Prevent strong wind from blowing down tower crane, but, this also brings corresponding risk, such as：Stop suddenly in tower crane is in work
Electricity accident, this be tower crane rotating part will continue in the presence of inertia turn round, it is clear that this is extremely dangerous behavior,
This dangerous possibility, enough attention are not being caused instantly, although also have some tower crane manufacturing firms to tower
The brakes of machine has carried out corresponding transformation, can in the event of a power failure by manually to the rotary system system of tower crane
It is dynamic, but there is the poor defect of braking effect.
The content of the invention
The purpose of the present invention：For the drawbacks described above existing for existing derrick crane, there is provided a kind of new type of safe reliability
Tower crane rotation dead electricity control system.
The present invention realizes that the technical scheme that the above method is used is：A kind of described tower crane rotation dead electricity control
System, it includes：Revolution driving motor, power connector, fluid coupling, electromagnetic brake, braked wheel, revolution driving subtract
Fast machine, bull gear, revolving support, little gear, brake apparatus, brake fluid cylinder pressure, power source hydraulic cylinder, manipulation device, stroke are opened
Pass is constituted, and described revolution driving motor shaft is connected by power connector with the power intake of fluid coupling, institute
The output shaft of the fluid coupling stated is connected with the power input shaft of revolution driving reductor, in the dynamic of revolution driving reductor
Little gear, described little gear and the bull gear phase on the rotary part of revolving support outside are mounted with output shaft
Engagement, it is characterized in that：Electromagnetism is respectively arranged with the output shaft of fluid coupling and the power input shaft of revolution driving reductor
Brake and braked wheel, set a brake fluid cylinder pressure, the piston rod of described brake fluid cylinder pressure on described braked wheel side
Be connected with brake apparatus, also set up a power source hydraulic cylinder in the driver's cabin of tower crane, the piston rod of power source hydraulic cylinder with
Manipulation device is connected, and is connected with hydraulic tube between brake fluid cylinder pressure and the working chamber of power source hydraulic cylinder, is filled near manipulation
The position put sets a normally opened travel switch, and described travel switch is connected in the main circuit of control circuit, manipulation device
The trip is switched in reset state is depressed, make travel switch in an ON state, manipulation device is opened with stroke in working order
Pass disengages, and travel switch is off.
Beneficial effect：Be can be seen that when tower crane is under unexpected blackout condition, by artificial by fundamental diagram of the invention
Manipulation operations device, it is possible to realize braking to rotary system, it is to avoid tower crane is in the case of power-off suddenly with may be due to
The security incident that coasting is brought.
Brief description of the drawings
Fig. 1 is principle schematic of the invention.
Shown in figure：1 be revolution driving motor, 2 be power connector, 3 be fluid coupling, 4 be electromagnetic brake,
5 it is braked wheel, 6 be revolution driving reductor, 7 be bull gear, 8 be revolving support, 9 be little gear, 10 be brake apparatus, 11 is
Brake fluid cylinder pressure, 12 be power source hydraulic cylinder, 13 manipulation devices, 13 travel switches, 15 be control circuit main circuit.
Specific embodiment
A kind of tower crane rotation dead electricity control system, it includes：Revolution driving motor（1）, power connector
（2）, fluid coupling（3）, electromagnetic brake（4）, braked wheel（5）, revolution driving reductor（6）, bull gear（7）, revolution branch
Support（8）, little gear（9）, brake apparatus（10）, brake fluid cylinder pressure（11）, power source hydraulic cylinder（12）, manipulation device（13）, OK
Cheng Kaiguan（14）And control circuit main circuit（15）, described revolution driving motor（1）Axle passes through power connector（2）With
Fluid coupling（3）Power intake connection, described fluid coupling（3）Output shaft and revolution driving reductor（6）
Power input shaft be connected, in revolution driving reductor（6）Dynamic output shaft on be mounted with little gear（9）, it is described
Little gear（9）With installed in revolving support（8）Bull gear on the rotary part of outside（7）It is meshed, in fluid coupling（3）'s
Output shaft and revolution driving reductor（6）Power input shaft be respectively arranged with electromagnetic brake（4）With braked wheel（5）, institute
The braked wheel stated（5）One brake fluid cylinder pressure is set on side（11）, described brake fluid cylinder pressure（11）Piston rod with braking fill
Put（10）It is connected, a power source hydraulic cylinder is also set up in the driver's cabin of tower crane（12）, power source hydraulic cylinder（12）Piston
Bar and manipulation device（13）It is connected, brake fluid cylinder pressure（11）With power source hydraulic cylinder（12）Working chamber between with hydraulic tube be connected
Connect, near manipulation device（13）Position set a normally opened travel switch（14）, described travel switch（14）It is connected on
Control circuit（15）Main circuit in, manipulation device（13）The trip is switched in reset state（14）Pressure, makes travel switch
（14）In an ON state, manipulation device（13）In working order with travel switch（14）Disengage, travel switch（14）Place
In off-state.
Claims (4)
1. a kind of tower crane rotation dead electricity control system, it includes：Revolution driving motor（1）, power connector（2）、
Fluid coupling（3）, electromagnetic brake（4）, braked wheel（5）, revolution driving reductor（6）, bull gear（7）, revolving support
（8）, little gear（9）, brake apparatus（10）, brake fluid cylinder pressure（11）, power source hydraulic cylinder（12）, manipulation device（13）, stroke
Switch（14）And control circuit main circuit（15）, it is characterised in that：In fluid coupling（3）Output shaft subtract with revolution driving
Fast machine（6）Power input shaft be respectively arranged with electromagnetic brake（4）With braked wheel（5）,
According to claim 1, a kind of described tower crane rotation dead electricity control system, it is characterised in that：In described system
Driving wheel（5）One brake fluid cylinder pressure is set on side（11）, described brake fluid cylinder pressure（11）Piston rod and brake apparatus（10）
It is connected.
2. according to claim 1, a kind of described tower crane rotation dead electricity control system, it is characterised in that：In tower crane
A power source hydraulic cylinder is also set up in driver's cabin（12）, power source hydraulic cylinder（12）Piston rod and manipulation device（13）Phase
Even, brake fluid cylinder pressure（11）With power source hydraulic cylinder（12）Working chamber between be connected with hydraulic tube.
3. according to claim 1, a kind of described tower crane rotation dead electricity control system, it is characterised in that：Near behaviour
Vertical device（13）Position set a normally opened travel switch（14）, described travel switch（14）It is connected on control circuit（15）
Main circuit in.
4. according to claim 1, a kind of described tower crane rotation dead electricity control system, it is characterised in that：Manipulation device
（13）The trip is switched in reset state（14）Pressure, makes travel switch（14）In an ON state, manipulation device（13）
Working condition and travel switch（14）Disengage, travel switch（14）It is off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148772.3A CN106744402A (en) | 2017-03-14 | 2017-03-14 | Tower crane rotation dead electricity control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148772.3A CN106744402A (en) | 2017-03-14 | 2017-03-14 | Tower crane rotation dead electricity control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106744402A true CN106744402A (en) | 2017-05-31 |
Family
ID=58962599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710148772.3A Pending CN106744402A (en) | 2017-03-14 | 2017-03-14 | Tower crane rotation dead electricity control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106744402A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105375A (en) * | 2017-10-31 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of backlash adjusting method of pinion gear and bull gear on speed reducer output shaft |
| CN108557667A (en) * | 2018-06-08 | 2018-09-21 | 江苏省苏中建设集团股份有限公司 | Swing mechanism brake apparatus and derrick crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037878A (en) * | 1976-05-28 | 1977-07-26 | J. I. Case Company | Vehicle with dual braking systems |
| CN101362579A (en) * | 2007-08-07 | 2009-02-11 | 杭州科曼萨杰牌建设机械有限公司 | Power loss control apparatus for tower crane rotation |
| CN201296613Y (en) * | 2008-12-02 | 2009-08-26 | 中国第一冶金建设有限责任公司 | Gyration braking device of reverse twist tower type crane |
| CN203237957U (en) * | 2013-05-17 | 2013-10-16 | 湖南中铁五新重工有限公司 | Rotary braking system of gantry crane |
| CN203497969U (en) * | 2013-09-11 | 2014-03-26 | 王记恩 | Novel rotary mechanism of tower crane |
| CN105692473A (en) * | 2016-04-19 | 2016-06-22 | 三一汽车起重机械有限公司 | Tower crane and rotation power loss protection device |
-
2017
- 2017-03-14 CN CN201710148772.3A patent/CN106744402A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037878A (en) * | 1976-05-28 | 1977-07-26 | J. I. Case Company | Vehicle with dual braking systems |
| CN101362579A (en) * | 2007-08-07 | 2009-02-11 | 杭州科曼萨杰牌建设机械有限公司 | Power loss control apparatus for tower crane rotation |
| CN201296613Y (en) * | 2008-12-02 | 2009-08-26 | 中国第一冶金建设有限责任公司 | Gyration braking device of reverse twist tower type crane |
| CN203237957U (en) * | 2013-05-17 | 2013-10-16 | 湖南中铁五新重工有限公司 | Rotary braking system of gantry crane |
| CN203497969U (en) * | 2013-09-11 | 2014-03-26 | 王记恩 | Novel rotary mechanism of tower crane |
| CN105692473A (en) * | 2016-04-19 | 2016-06-22 | 三一汽车起重机械有限公司 | Tower crane and rotation power loss protection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105375A (en) * | 2017-10-31 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of backlash adjusting method of pinion gear and bull gear on speed reducer output shaft |
| CN108557667A (en) * | 2018-06-08 | 2018-09-21 | 江苏省苏中建设集团股份有限公司 | Swing mechanism brake apparatus and derrick crane |
| CN108557667B (en) * | 2018-06-08 | 2024-01-09 | 江苏省苏中建设集团股份有限公司 | Slewing mechanism braking device and tower crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |