CN107399675A - A kind of arm of derrick is broken active support device - Google Patents
A kind of arm of derrick is broken active support device Download PDFInfo
- Publication number
- CN107399675A CN107399675A CN201710859816.3A CN201710859816A CN107399675A CN 107399675 A CN107399675 A CN 107399675A CN 201710859816 A CN201710859816 A CN 201710859816A CN 107399675 A CN107399675 A CN 107399675A
- Authority
- CN
- China
- Prior art keywords
- arm
- support frame
- steel wire
- wire rope
- cutter
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 206010017076 Fracture Diseases 0.000 description 8
- 208000031294 Upper limb fractures Diseases 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010057071 Rectal tenesmus Diseases 0.000 description 3
- 208000012271 tenesmus Diseases 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
Abstract
The present invention relates to a kind of arm of derrick to be broken active support device, including there is chute arm, the upper surface of arm, there is steel wire rope in chute, have the reel being placed on the right side of chute on arm, the right-hand member of steel wire rope is wrapped on reel；Equipped with the multiple cutter that can be horizontally slipped in chute on steel wire rope；Be placed on arm below arm and with cutter multiple support frames correspondingly, the right-hand member of support frame is hinged with arm through rotating shaft, safety rope is housed, the end of safety rope is upward through arm and is connected with arm, and safety rope is placed on the left of corresponding cutter on support frame；Rotating shaft is connected with arm, and torsion spring is set with rotating shaft, and the both ends of torsion spring are connected with rotating shaft and support frame respectively；The right-hand member of support frame is provided with straight trough, is contacted on arm equipped with the fixture block that is placed in rotating shaft top and can slide vertically, the lower surface of fixture block with support frame, equipped with the spring being placed in above fixture block on arm, the both ends of spring contact with arm and fixture block respectively.
Description
Technical field
The present invention relates to technical field of crane equipment, particularly a kind of arm of derrick fracture active support device.
Background technology
In lifting appliance field, some large-scale lifting machinery such as tower crane, bridge crane, truck-mounted crane etc., it is required for using arm
To complete the raising of weight and transhipment, wherein, truck-mounted crane is because of its flexible operability with mobility increasingly by the green grass or young crops of people
Look at；However, in recent years, the arm fracture accident of truck-mounted crane happens occasionally, post-rift arm, which can produce, to fall, and due to arm
Own wt is larger, and operating position is higher, when arm falls to ground or platform, easily causes different degrees of personnel to hinder
Die and damaged with the vehicle of job site, equipment, bring many unnecessary troubles and property loss to project construction, especially
In some more serious accidents, casualties quantity is often larger, thus truck-mounted crane in operation process to site operation personnel
There is great security threat hidden danger.
The content of the invention
For the above situation, to make up the technical deficiency present in prior art, the present invention provides a kind of arm of derrick and broken
Active support device is split, to reduce the casualties and property loss in arm fracture accident as far as possible.
Its solve technical scheme be：The arm set including horizontal cross, the upper surface of arm is provided with and length of boom
The consistent chute in direction, there is the steel wire rope consistent with length of boom direction in chute, on arm equipped be placed on the right side of chute can
The reel of rotation, the right-hand member of steel wire rope are wrapped on reel；It is equipped with steel wire rope along rope capacity directional spreding and can
The multiple cutter to be horizontally slipped in chute, the blade of cutter is longitudinally disposed and is placed in the lower-left end of cutter；
Equipped with horizontally disposed multiple support frames for being placed in below arm on described arm, a pair of support frame and cutter 1
Should, the right-hand member of support frame is hinged with arm through longitudinally disposed rotating shaft, and the safety rope being placed in above support frame is housed on support frame,
One end of safety rope is connected with support frame, and the other end of safety rope is upward through arm and is connected with arm, and safety rope is put
On the left of the blade of corresponding cutter；
Described rotating shaft is connected with arm, and torsion spring is set with rotating shaft, and one end of torsion spring is connected with rotating shaft, torsion spring it is another
End is connected with support frame, forms torsion of the support frame through torsion spring and does the structure rotated counterclockwise；
The right-hand member of described support frame is provided with opening towards the straight trough on the right side, and rotating shaft top is placed on arm and can be slid vertically
Fixture block, the lower surface of fixture block contacts with support frame, equipped with the vertically arranged spring being placed in above fixture block on arm, spring
One end contacts with arm, and the other end of spring contacts with fixture block, and when support frame is through 90 ° of axis of rotation, straight trough is relative with fixture block
Should, slide downward makes the bottom of fixture block be placed in straight trough to fixture block under the action of the spring, support frame be locked in current location and
It can not rotate.
Clever structure of the present invention, implement simply, support frame ejects in time after arm fracture, largely ensure that ground
Dough figurine person and the safety of facility, the casualties and property loss that the accident of effectively reducing may be brought, and the present invention does not influence
The normal use of arm, only start when accident occurs, being normally carried out and effective and safe protection for hoisting operation can be ensured simultaneously.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the A-A sectional views of the present invention.
Fig. 3 is the B-B sectional views of the present invention.
Fig. 4 is the C-C sectional views of the present invention
Fig. 5 is the enlarged drawing of Fig. 1 of present invention D parts.
Fig. 6 is the isometric cutaway view of the present invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1 to Fig. 6, the present invention includes the arm 1 that horizontal cross is set, and the upper surface of arm 1 is provided with and arm 1
The consistent chute 2 of length direction, there is the steel wire rope 3 consistent with the length direction of arm 1 in chute 2, equipped with being placed in chute on arm 1
The rotatable reel 4 on 2 right sides, the right-hand member of steel wire rope 3 are wrapped on reel 4；It is equipped with steel wire rope 3 and is grown along steel wire rope 3
Degree directional spreding and the multiple cutter 5 that can be horizontally slipped in chute 2, the blade of cutter 5 is longitudinally disposed and is placed in cutting
The lower-left end of knife 5；
Equipped with the horizontally disposed multiple support frames 6 for being placed in the lower section of arm 1, support frame 6 and cutter 5 one on described arm 1
One correspondence, the right-hand member of support frame 6 is be hinged through longitudinally disposed rotating shaft 7 with arm 1, is equipped with support frame 6 and is placed in the top of support frame 6
Safety rope 8, one end of safety rope 8 is connected with support frame 6, the other end of safety rope 8 be upward through arm 1 and with arm 1
It is connected, safety rope 8 is placed on the left of the blade of corresponding cutter 5；
Described rotating shaft 7 is connected with arm 1, and torsion spring 9 is set with rotating shaft 7, and one end of torsion spring 9 is connected with rotating shaft 7, torsion spring
9 other end is connected with support frame 6, forms torsion of the support frame 6 through torsion spring 9 and does the structure rotated counterclockwise；
The right-hand member of described support frame 6 is provided with opening towards the straight trough 10 on the right side, equipped with being placed in the top of rotating shaft 7 and can be vertical on arm 1
The fixture block 11 of slip, the lower surface of fixture block 11 contact with support frame 6, vertically arranged above fixture block 11 equipped with being placed on arm 1
Spring 12, one end of spring 12 contacts with arm 1, and the other end of spring 12 contacts with fixture block 11, when support frame 6 is through rotating shaft 7
When rotating 90 °, straight trough 10 is corresponding with fixture block 11, and the slide downward in the presence of spring 12 of fixture block 11 puts the bottom of fixture block 11
In in straight trough 10, support frame 6 is locked in current location and can not rotated.
In order that the steel wire rope of the present invention reaches departing effect with cutter, described cutter 5 are provided with opening
Upward and left and right insertion groove 13, steel wire rope 3 is placed in groove 13, and the groove width of groove 13 is less than the diameter of steel wire rope 3, groove
Clamping force caused by 13 pairs of steel wire ropes 3 makes cutter 5 not horizontally slipped when not by external force on steel wire rope 3, cutter 5
There is the collar 14 being sleeved on steel wire rope 3 on right side, and when steel wire rope 3 is moved to the left, collar 14 is moved and pushed away simultaneously with steel wire rope 3
Dynamic cutter 5 slide to the left in chute 2.
In order that the steel wire rope of the present invention reaches departing effect with arm, it is equipped with described arm 1 and is placed in chute 2
Right side and the sliding block 15 that can be slid vertically, on sliding block 15 equipped with can left-right rotation reel 4 and be coaxially disposed with reel 4
Motor 16, the output shaft of motor 16 are connected with reel 4.
In use, arm 1 is rotated counterclockwise to lift by crane direction, i.e. the left end of arm 1 is connected, hung the present invention with crane gear
The right-hand member of arm 1 is connected with weight, and the left end of steel wire rope 3 is connected with the left end of arm 1 or is connected with crane gear；
In normal lifting operations, arm 1 uses as conventional arm, and other above-mentioned features do not have any impact to it；
When arm 1 produces fracture at an arbitrary position, the boom portion on the right side of the fracture position produces downward bending or dropped,
Because the left end of steel wire rope 3 is fixed and the length of steel wire rope 3 is constant, therefore the arm on the right side of fracture position bends or fallen downwards
When falling, the distance between both ends of arm 1 produce length difference at the fracture position, and steel wire rope 3 is pulled on the right side of fracture position
Collar 14 on arm 1 is moved to the left and drives cutter 5 to be slided to the left in chute 2, and reel 4 is under the pulling of steel wire rope 3
Unwrapping wire is produced to rotate to compensate length difference caused by fracture；When cutter 5 slide to the left, the safety rope 8 in the left side of cutter 5 is placed in
It is cut off, support frame 67 rotates down around the shaft under the twisting force of self gravitation and torsion spring 9 and pulls down safety rope 8
Go out；When support frame 6 turns over 90 °, straight trough 10 is corresponding with fixture block 11, and the slide downward in the presence of spring 12 of fixture block 11 makes card
The bottom of block 11 is placed in straight trough 10, and support frame 6 is locked in current location and can not rotated, and so far completes the bullet of support frame 6
Go out action；The support frame 6 ejection effect be：When arm falls downwards to ground or platform, support frame 6 touches ground and will
The boom portion of whereabouts supports, and is substantially reduced the contact area between arm and ground, and make between arm and ground
There is larger activity space, reduce as far as possible and injure and lose to caused by ground staff and facility；
After the completion of the pop-up action of above-mentioned support frame 6：
As arm continues bending downwards, the steel wire rope 3 being wrapped on reel 4 is constantly released, the bending process of arm not by
Hinder, avoid because the curtailment of steel wire rope 3 makes bending process be obstructed, steel wire rope 3 is broken suddenly when staff is checked
And bring unnecessary security risk；
Dropped as arm is directly broken, larger distance and angle change produced between the boom portion and steel wire rope 3 of tenesmus,
The gravity of arm is enough to overcome the frictional force between steel wire rope 3 and groove 13 steel wire rope 3 is taken off through groove 13 from cutter 5
From after the cutter 5 on the arm of tenesmus all depart from steel wire rope 3, reel 4 continues unwrapping wire rotation, works as coiling
After steel wire rope 3 on wheel 4 is released completely, now because steel wire rope 3 through reel 4 gives 15 1 upward pulling force of sliding block, from
And make the upward sliding and departing from arm makes steel wire rope 3 be completely disengaged with arm, the continuation of the arm of fracture on arm of sliding block 15
Tenesmus, avoid steel wire rope 3 that arm suspention is brought into more potential safety hazards in the air.
After arm 1 bends or is broken, the arm 1 can not be continuing with, can by the left end of steel wire rope 3 from arm 1 or
Connection is released in heavy equipment, and starts motor 16 and takes up steel wire rope 3 on reel 4 again, then steel wire rope 3 may be mounted to that
Reused on other arms 1.
Clever structure of the present invention and easily implementation, support frame are formed with safety rope, fixture block, steel wire rope, cutter, reel
Complete efficient public security system, it is ensured that support frame arm fracture after eject in time, largely ensure that ground staff with
The safety of facility, the casualties and property loss that the accident of effectively reducing may be brought, and during arm normal work, the safety
Security system does not influence the normal use of arm, only starts when accident occurs, and can ensure being normally carried out for hoisting operation simultaneously
Protected with effective and safe；In actual implementation process, support frame can be set in the same way in the front/rear end of arm respectively
It is and associated with cutter through safety rope with fixture block, will not directly it be contacted with ground after so can be further assured that arm landing,
And can prevent arm landing from producing rolling, security risk is minimized with loss.
Claims (3)
1. a kind of arm of derrick is broken active support device, it is characterised in that the arm set including horizontal cross（1）, arm
（1）Upper surface be provided with and arm（1）The consistent chute of length direction（2）, chute（2）Inside have and arm（1）Length direction one
The steel wire rope of cause（3）, arm（1）Upper be equipped with is placed in chute（2）The rotatable reel on right side（4）, steel wire rope（3）Right-hand member
It is wrapped in reel（4）On；Steel wire rope（3）It is upper to be equipped with along steel wire rope（3）Length direction is distributed and can be in chute（2）Interior left and right is sliding
Dynamic multiple cutter（5）, cutter（5）Blade it is longitudinally disposed and be placed in cutter（5）Lower-left end；
Described arm（1）Upper be equipped with is placed in arm（1）Horizontally disposed multiple support frames of lower section（6）, support frame（6）With cutting
Cutter（5）Correspond, support frame（6）Right-hand member and arm（1）Through longitudinally disposed rotating shaft（7）It is be hinged, support frame（6）Upper dress
It is placed in support frame（6）The safety rope of top（8）, safety rope（8）One end and support frame（6）It is connected, safety rope（8）It is another
One end is upward through arm（1）And and arm（1）It is connected, safety rope（8）It is placed in corresponding cutter（5）Blade it is left
Side；
Described rotating shaft（7）With arm（1）It is connected, rotating shaft（7）On be set with torsion spring（9）, torsion spring（9）One end and rotating shaft
（7）It is connected, torsion spring（9）The other end and support frame（6）It is connected, forms support frame（6）Through torsion spring（9）Torsion do the inverse time
The structure that pin rotates；
Described support frame（6）Right-hand member be provided with opening towards the right side straight trough（10）, arm（1）Upper be equipped with is placed in rotating shaft（7）Top
And the fixture block that can be slid vertically（11）, fixture block（11）Lower surface and support frame（6）Contact, arm（1）Upper be equipped with is placed in fixture block
（11）The vertically arranged spring of top（12）, spring（12）One end and arm（1）Contact, spring（12）The other end and card
Block（11）Contact, works as support frame（6）Through rotating shaft（7）When rotating 90 °, straight trough（10）With fixture block（11）It is corresponding, fixture block（11）
Spring（12）In the presence of slide downward make fixture block（11）Bottom be placed in straight trough（10）It is interior, support frame（6）It is locked in current
Position and can not rotate.
2. a kind of arm of derrick fracture active support device according to claim 1, is very characterised by, cutter（5）On
The groove penetrated provided with opening up and left and right（13）, steel wire rope（3）It is placed in groove（13）It is interior, groove（13）Groove width be less than steel
Cord（3）Diameter, groove（13）To steel wire rope（3）Caused clamping force makes cutter（5）Will not be in steel when not by external force
Cord（3）On horizontally slip, cutter（5）Right side be sleeved on steel wire rope（3）On collar（14）, work as steel wire rope（3）To
When moving left, collar（14）With steel wire rope（3）Move simultaneously and promote cutter（5）In chute（2）Inside slide to the left.
A kind of 3. arm of derrick fracture active support device according to claim 1, it is characterised in that arm（1）Upper dress
It is placed in chute（2）Right side and the sliding block that can be slid vertically（15）, sliding block（15）It is upper equipped with can left-right rotation reel（4）With
With reel（4）The motor being coaxially disposed（16）, motor（16）Output shaft and reel（4）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859816.3A CN107399675B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture active support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859816.3A CN107399675B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture active support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107399675A true CN107399675A (en) | 2017-11-28 |
| CN107399675B CN107399675B (en) | 2018-07-17 |
Family
ID=60388795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710859816.3A Active CN107399675B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture active support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107399675B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280628A (en) * | 1978-03-31 | 1981-07-28 | Goss John B | Anti-two block system |
| JPH10120365A (en) * | 1996-10-16 | 1998-05-12 | Hitachi Constr Mach Co Ltd | Handrail device for crane boom |
| CN102491190A (en) * | 2011-11-22 | 2012-06-13 | 中国建筑第六工程局有限公司 | Tower crane |
| CN102730584A (en) * | 2012-06-27 | 2012-10-17 | 三一重工股份有限公司 | Protection apparatus and protection method for principal arm of crane, and crane |
| CN103420296A (en) * | 2013-08-29 | 2013-12-04 | 徐州重型机械有限公司 | Super-lifting device, front pre-tightened steel wire rope length control system and crane |
| CN104671126A (en) * | 2013-11-29 | 2015-06-03 | 大连渤海起重机器股份有限公司 | Reinforced boom frame structure of jib crane |
| CN106219411A (en) * | 2016-07-26 | 2016-12-14 | 武汉船用机械有限责任公司 | A kind of lifting rope that is provided with fixes the arm of end connection device |
-
2017
- 2017-09-21 CN CN201710859816.3A patent/CN107399675B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280628A (en) * | 1978-03-31 | 1981-07-28 | Goss John B | Anti-two block system |
| JPH10120365A (en) * | 1996-10-16 | 1998-05-12 | Hitachi Constr Mach Co Ltd | Handrail device for crane boom |
| CN102491190A (en) * | 2011-11-22 | 2012-06-13 | 中国建筑第六工程局有限公司 | Tower crane |
| CN102730584A (en) * | 2012-06-27 | 2012-10-17 | 三一重工股份有限公司 | Protection apparatus and protection method for principal arm of crane, and crane |
| CN103420296A (en) * | 2013-08-29 | 2013-12-04 | 徐州重型机械有限公司 | Super-lifting device, front pre-tightened steel wire rope length control system and crane |
| CN104671126A (en) * | 2013-11-29 | 2015-06-03 | 大连渤海起重机器股份有限公司 | Reinforced boom frame structure of jib crane |
| CN106219411A (en) * | 2016-07-26 | 2016-12-14 | 武汉船用机械有限责任公司 | A kind of lifting rope that is provided with fixes the arm of end connection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107399675B (en) | 2018-07-17 |
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Legal Events
| Date | Code | Title | Description |
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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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180611 Address after: 266400 Chaoyang mountain road, Huangdao District, Qingdao, Shandong 528 Applicant after: QINGDAO KAIDEJIA INDUSTRY & TRADE CO.,LTD. Address before: No. 4, watting East Street, watting Town, Nanyang, Henan Applicant before: Lu Chengshuai |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Crane jib fracture active support device Effective date of registration: 20200326 Granted publication date: 20180717 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO KAIDEJIA INDUSTRY & TRADE Co.,Ltd. Registration number: Y2020990000233 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201228 Granted publication date: 20180717 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO KAIDEJIA INDUSTRY & TRADE Co.,Ltd. Registration number: Y2020990000233 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266400 Chaoyang mountain road, Huangdao District, Qingdao, Shandong 528 Patentee after: Qingdao Kaidejia Intelligent Manufacturing Co.,Ltd. Address before: 266400 Chaoyang mountain road, Huangdao District, Qingdao, Shandong 528 Patentee before: QINGDAO KAIDEJIA INDUSTRY & TRADE CO.,LTD. |