CN108502754A - A kind of anti-risk ejection device of tower crane lifting process - Google Patents
A kind of anti-risk ejection device of tower crane lifting process Download PDFInfo
- Publication number
- CN108502754A CN108502754A CN201810307029.2A CN201810307029A CN108502754A CN 108502754 A CN108502754 A CN 108502754A CN 201810307029 A CN201810307029 A CN 201810307029A CN 108502754 A CN108502754 A CN 108502754A
- Authority
- CN
- China
- Prior art keywords
- support plate
- mandrel
- rope
- rope sheave
- limit switch
- 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.)
- Granted
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
- B66C23/90—Devices for indicating or limiting lifting moment
- B66C23/905—Devices for indicating or limiting lifting moment electrical
-
- 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
- B66C13/50—Applications of limit circuits or of limit-switch arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of anti-risk ejection devices of tower crane lifting process, including mandrel and stock crossbeam, the mandrel both sides are respectively equipped with rope sheave and support plate, idler wheel is equipped on the left of the mandrel, the idler wheel and mandrel is connect by screw with rope sheave and support plate, rope pressing plate is equipped on the outside of the rope sheave, steel wire rope is equipped between the rope sheave and idler wheel, the steel cord ends are connected with hook, the rope sheave is internally provided with coiled springs, described mandrel one end is connect by shaft coupling with limit switch, limit switch bracket is equipped with below the limit switch, the limit switch bracket is fixed by connector A with support plate, the support plate is fixed by connector B with crust of the device, U-shaped card is equipped with below the crust of the device.The apparatus structure is simple, it is possible to prevente effectively from collapse accident of derrick crane during jacking, ensures the safety of construction personnel.
Description
Technical field
The present invention relates to building hoists to protect equipment equipment technical field, more specifically, being related to a kind of tower lifting
Machine jacks the anti-risk ejection device of process.
Background technology
The tower body of derrick crane, be one save standard knot be fastened by bolts it is assembled get up, use insufficient height
When, it realizes that tower crane increases height by increasing standard knot, increases height hydraulic cylinder and jack up a section standard knot in stock
Height space distance slings a section standard knot with tower crane auxiliary hook and is transported to the space just jacked, docked with previous section standard knot,
Primary increase is completed in fastening；If continuing to increase, step is identical, and demounting procedure is also identical.Due to no anti-risk ejection device, peace
Fill worker's reflection not in time, hydraulic cylinder continues to push up, and stock guide wheel is emerged standard knot, and collapse accident is caused.Derrick crane falls
It collapses accident, is all during jacking mostly, stock guide wheel is emerged caused by standard knot.
Invention content
The object of the present invention is to provide a kind of anti-risk ejection devices of tower crane lifting process, and the apparatus structure is simple,
It is possible to prevente effectively from collapse accident of derrick crane during jacking, ensures the safety of construction personnel.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of anti-risk ejection device of tower crane lifting process, including mandrel and stock crossbeam, the mandrel both sides point
Not She You rope sheave and support plate, be equipped with idler wheel on the left of the mandrel, the idler wheel and mandrel by screw and rope sheave and
Support plate connects, and rope pressing plate is equipped on the outside of the rope sheave, steel wire rope, the steel wire are equipped between the rope sheave and idler wheel
Rope end is connected with hook, and the rope sheave is internally provided with coiled springs, and described mandrel one end is opened by shaft coupling and limit
Connection connects, and limit switch bracket is equipped with below the limit switch, and the limit switch bracket passes through connector A and support
Plate is fixed, and the support plate is fixed by connector B with crust of the device, and U-shaped card is equipped with below the crust of the device, described
Stock below the crossbeam be equipped with hydraulic cylinder.
Further, it is equipped with gland on the outside of the mandrel and support plate contact position.
Further, the steel wire rope blocks at crust of the device contact position equipped with rope.
Further, the connector A includes plain washer, spring washer and bolt.
Further, the connector B includes plain cushion, spring shim and nut.
Further, washer is equipped between the idler wheel and support plate.
The operation principle of the present apparatus is anti-risk ejection device to be stuck on stock with U-shaped card, with hand handle steel wire rope when increasing
It extracts and, hook hooks the upper end of standard knot, and the lower end of anti-risk ejection device with rope sticker, sticks steel wire rope, adjustment is above
Travel switch, hear a sound of click, then fasten travel switch, establish hydraulic cylinder and shrink minimum stroke position；Rope of dismantling blocks,
Dragged outward with hand handle steel wire rope again, with tape measure steel wire rope pull out distance, distance for one section standard knot apart from when, then with restrict
Steel wire rope is stuck, following travel switch is adjusted, hears a sound of click, then fastens travel switch, hydraulic cylinder is established and shrinks
Maximum travel position, rope card of dismantling, slowly looses one's grip, and coiled springs haul steel wire rope, after steel wire rope is exceptionally straight, returns to hydraulic cylinder contraction
Minimum stroke position.Start motor, jacked, jack to standard knot apart from when, trigger travel switch, automatically cut off
Power supply, jacking stop, it is ensured that jacking the safety of process, then increase, repeat the above steps, removal step is identical.
Compared with the prior art, beneficial effects of the present invention are as follows：
Using the anti-risk ejection device of the installation present invention, caused by the standard knot that can emerge to avoid stock guide wheel during jacking
Derrick crane collapse accident improves the safety of operation, safeguard work personnel's personal safety.
Description of the drawings
Fig. 1 is overall structure front view of the present invention；
Fig. 2 is revolved sectional view at overall structure C of the present invention；
In figure：1, rope sheave；2, rope pressing plate；3, crust of the device；4, idler wheel；5, washer；6, support plate；7, gland；8, mandrel；
9, shaft coupling；10, limit switch bracket；11, limit switch；12, connector B；13, connector A；14, stock crossbeam；15, it rolls up
Bent spring；16, steel wire rope；17, rope card；18, U-shaped card；19, it links up with；20, hydraulic cylinder.
Specific implementation mode
In order to which the technical means, creative features, achievable purpose and effectiveness for making invention realize are easy to understand, with reference to
It is specifically illustrating, the present invention is further explained.
As depicted in figs. 1 and 2, a kind of anti-risk ejection device of tower crane lifting process, including mandrel 8 and stock crossbeam
14,8 both sides of mandrel are respectively equipped with rope sheave 1 and support plate 6, and 8 left side of mandrel is equipped with idler wheel 4, and idler wheel 4 and mandrel 8 pass through screw
It is connect with rope sheave 1 and support plate 6,1 outside of rope sheave is equipped with rope pressing plate 2, and steel wire rope 16, steel wire rope are equipped between rope sheave 1 and idler wheel 4
16 ends are connected with hook 19, and rope sheave 1 is internally provided with coiled springs 15, and 8 one end of mandrel is connected by shaft coupling 9 and limit switch 11
It connects, 11 lower section of limit switch is equipped with limit switch bracket 10, and limit switch bracket 10 is solid by connector A 13 and support plate 6
Fixed, support plate 6 is fixed by connector B 12 and crust of the device 3, and 3 lower section of crust of the device is equipped with U-shaped card 18, under stock crossbeam 14
Side is equipped with hydraulic cylinder 20, is equipped with gland 7 on the outside of mandrel 8 and 6 contact position of support plate, steel wire rope 16 contacts position with crust of the device 3
It sets place and is equipped with rope card 17, connector A 13 includes plain washer, spring washer and bolt, and connector B 12 includes plain cushion, spring pad
Piece and nut are equipped with washer 5 between idler wheel 4 and support plate 6.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (6)
1. a kind of anti-risk ejection device of tower crane lifting process, it is characterised in that：Including mandrel and stock crossbeam, the core
Axis both sides are respectively equipped with rope sheave and support plate, are equipped with idler wheel on the left of the mandrel, the idler wheel and mandrel pass through screw
It is connect with rope sheave and support plate, rope pressing plate is equipped on the outside of the rope sheave, steel wire rope, institute are equipped between the rope sheave and idler wheel
The steel cord ends stated are connected with hook, and the rope sheave is internally provided with coiled springs, and described mandrel one end passes through shaft coupling
It is connect with limit switch, limit switch bracket is equipped with below the limit switch, the limit switch bracket passes through connection
Part A is fixed with support plate, and the support plate is fixed by connector B with crust of the device, and U is equipped with below the crust of the device
Type card, the stock below the crossbeam are equipped with hydraulic cylinder.
2. a kind of anti-risk ejection device of tower crane lifting process according to claim 1, it is characterised in that：The core
It is equipped with gland on the outside of axis and support plate contact position.
3. a kind of anti-risk ejection device of tower crane lifting process according to claim 1, it is characterised in that：The steel
Cord is blocked at crust of the device contact position equipped with rope.
4. a kind of anti-risk ejection device of tower crane lifting process according to claim 1, it is characterised in that：The company
Fitting A includes plain washer, spring washer and bolt.
5. a kind of anti-risk ejection device of tower crane lifting process according to claim 1, it is characterised in that：The company
Fitting B includes plain cushion, spring shim and nut.
6. a kind of anti-risk ejection device of tower crane lifting process according to claim 1, it is characterised in that：The rolling
Washer is equipped between wheel and support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307029.2A CN108502754B (en) | 2018-04-08 | 2018-04-08 | A kind of anti-risk ejection device of tower crane lifting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307029.2A CN108502754B (en) | 2018-04-08 | 2018-04-08 | A kind of anti-risk ejection device of tower crane lifting process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108502754A true CN108502754A (en) | 2018-09-07 |
| CN108502754B CN108502754B (en) | 2019-09-10 |
Family
ID=63381112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810307029.2A Expired - Fee Related CN108502754B (en) | 2018-04-08 | 2018-04-08 | A kind of anti-risk ejection device of tower crane lifting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108502754B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936227A (en) * | 1959-11-16 | 1963-09-04 | Ace Machinery Ltd | Improvements in or relating to lifts |
| CN101219760A (en) * | 2008-02-04 | 2008-07-16 | 北京星光影视设备科技股份有限公司 | Roof failure preventing position limiter |
| CN201825680U (en) * | 2010-09-27 | 2011-05-11 | 中国葛洲坝集团机械船舶有限公司 | Inner wall rope-pressing type steel wire rope reel |
| CN202139006U (en) * | 2011-05-18 | 2012-02-08 | 江苏雄宇重工科技股份有限公司 | Hoister for overhead working platform |
| CN202449751U (en) * | 2011-11-16 | 2012-09-26 | 宁波新大昌织造有限公司 | Crane limit device |
-
2018
- 2018-04-08 CN CN201810307029.2A patent/CN108502754B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936227A (en) * | 1959-11-16 | 1963-09-04 | Ace Machinery Ltd | Improvements in or relating to lifts |
| CN101219760A (en) * | 2008-02-04 | 2008-07-16 | 北京星光影视设备科技股份有限公司 | Roof failure preventing position limiter |
| CN201825680U (en) * | 2010-09-27 | 2011-05-11 | 中国葛洲坝集团机械船舶有限公司 | Inner wall rope-pressing type steel wire rope reel |
| CN202139006U (en) * | 2011-05-18 | 2012-02-08 | 江苏雄宇重工科技股份有限公司 | Hoister for overhead working platform |
| CN202449751U (en) * | 2011-11-16 | 2012-09-26 | 宁波新大昌织造有限公司 | Crane limit device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108502754B (en) | 2019-09-10 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20210408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |