CN107381361A - A kind of arm of derrick fracture safe protector - Google Patents
A kind of arm of derrick fracture safe protector Download PDFInfo
- Publication number
- CN107381361A CN107381361A CN201710859818.2A CN201710859818A CN107381361A CN 107381361 A CN107381361 A CN 107381361A CN 201710859818 A CN201710859818 A CN 201710859818A CN 107381361 A CN107381361 A CN 107381361A
- Authority
- CN
- China
- Prior art keywords
- arm
- support frame
- steel wire
- chute
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to a kind of arm of derrick fracture safe protector, including arm, the upper surface of arm is provided with chute, there is steel wire rope in chute, and the right-hand member of steel wire rope connects through the right side of the first extension spring and chute；On steel wire rope the lower-left end of cutter is placed in equipped with the multiple cutter that can be slided in chute, the blade of cutter；Equipped with the multiple support frames being placed in below arm on arm, the right-hand member of support frame is hinged with arm through rotating shaft, safety rope is housed on support frame, one end of safety rope is connected with support frame, the other end of safety rope is upward through arm and is connected with arm, and safety rope is placed on the left of the blade of corresponding cutter；The lower surface of arm is provided with slot to make way corresponding with support frame, the front/rear end of slot to make way is respectively equipped with the vertical chute, the both ends of rotating shaft are respectively placed in the vertical chute, the bottom land of slot to make way is provided with least one counterbore, there is the second extension spring in counterbore, the upper end of second extension spring is fixed in counterbore, and the lower end of the second extension spring is connected with rotating shaft.
Description
Technical field
The present invention relates to technical field of crane equipment, particularly a kind of arm of derrick fracture safe protector.
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
Safety 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, the right-hand member of steel wire rope is through the first extension spring and cunning
The right side of groove is connected；It is equipped with steel wire rope along rope capacity directional spreding and what can be horizontally slipped in chute multiple cuts
Cutter, 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 the upper surface of arm,
Safety rope is placed on the left of the blade of corresponding cutter；
The front and rear width of described support frame is less than the front and rear width of arm, and the lower surface of arm is provided with to be corresponded with support frame
Downward opening slot to make way, the front and rear width of slot to make way is not less than the front and rear width of support frame, the front/rear end point of slot to make way
The vertical chute that She You do not matched with rotating shaft size, the both ends of rotating shaft are respectively placed in the vertical chute, when rotating shaft is in the vertical chute
During interior upward sliding, the right-hand member of support frame moves with rotating shaft, and the notch of slot to make way forms stop to support frame produces support frame
Deflection；
The bottom land of described slot to make way is provided with least one counterbore, has the second extension spring in counterbore, the upper end of the second extension spring is fixed on
In counterbore, the lower end of the second extension spring is connected with rotating shaft, form pulling force effect of the rotating shaft through the second extension spring and in the vertical chute to
The structure of upper slip.
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 enlarged drawing of Fig. 1 of present invention C portion.
Fig. 5 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. 5, 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 are the steel wire rope 3 consistent with the length direction of arm 1, the right-hand member and chute of steel wire rope 3 in chute 2
2 the first extension spring of right side 4 is connected；Be equipped with steel wire rope 3 along the distribution of the length direction of steel wire rope 3 and can in chute 2 it is left
Multiple cutter 5 of right slip, the blade of cutter 5 is longitudinally disposed and is placed in the lower-left end of cutter 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
Upper surface be connected, safety rope 8 is placed on the left of the blades of corresponding cutter 5；
The front and rear width of described support frame 6 is less than the front and rear width of arm 1, and the lower surface of arm 1 is provided with support frame 6 one by one
Corresponding downward opening slot to make way 9, the front and rear width of slot to make way 9 are not less than the front and rear width of support frame 6, before slot to make way 9
Rear end face is respectively equipped with the vertical chute 10 matched with the size of rotating shaft 7, and the both ends of rotating shaft 7 are respectively placed in the vertical chute 10, when
In the vertical chute 10 during upward sliding, the right-hand member of support frame 6 moves with rotating shaft 7 for rotating shaft 7, and the notch of slot to make way 9 is to support frame 6
Forming stop makes support frame 6 produce deflection；
The bottom land of described slot to make way 9 is provided with least one counterbore 11, there is the second extension spring 12 in counterbore 11, the second extension spring 12 it is upper
End is fixed in counterbore 11, and the lower end of the second extension spring 12 is connected with rotating shaft 7, forms pulling force effect of the rotating shaft 7 through the second extension spring 12
And in the vertical chute 10 upward sliding structure.
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, the right-hand member of described chute 2 is equipped with and can erected
To the sliding block 15 of slip, the right-hand member of steel wire rope 3 is connected through the first extension spring 4 with sliding block 15.
In order that the support frame of the present invention reaches preferably ejection effect, left and right width and the support of described slot to make way 9
The width up and down of frame 6 is equal, and fillet processing is done at the notch of slot to make way 9.
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 the first extension spring 4 is elongated disconnected to compensate
Split caused length difference；When cutter 5 slide to the left, the safety rope 8 for being placed in the left side of cutter 5 is cut off, and support frame 6 is at itself
7 rotate down around the shaft under Action of Gravity Field and pull out safety rope 8 downwards；Meanwhile under the pulling force effect of the second extension spring 12, turn
The upward sliding in the vertical chute 10 of axle 7, the right-hand member of support frame 6 moves up therewith, and the notch of slot to make way 9 is to support frame 6
Formed and stopped, support frame 6 is produced rotation；Therefore, when rotating shaft 7 slides into the upper end of the vertical chute 10, support frame 6 turns over
90 ° and its right-hand member are completely disposed in slot to make way 9, and now due to the barrier effect of slot to make way 9, support frame 6 is in the second extension spring 12
It is fixed under effect in slot to make way 9 and rotation can not be produced, completes the pop-up action of support frame 6；The work of the support frame 6 ejection
With being：When arm falls downwards to ground or platform, support frame 6 touches ground and supports the boom portion of whereabouts,
The contact area between arm and ground is substantially reduced, and makes have larger activity space between arm and ground, is subtracted as far as possible
It is small to injure and lose to caused by ground staff and facility；
After the completion of the pop-up action of above-mentioned support frame 6：
Reach the first extension spring 4 to do big elongation as arm continues bending downwards, then the weight of the boom portion to fracture be enough by
First extension spring 4 or the first extension spring 4 are broken with the connecting portion of steel wire rope 3 or the first extension spring 4 and the connecting portion of arm 1, arm it is curved
It is unobstructed to be folded over journey, avoids because the first extension spring 4 makes in the case that bending process is obstructed, when staff is checked first
Extension spring 4 is broken and brings unnecessary security risk suddenly；
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, now due to the angle between steel wire rope 3 and arm
Make steel wire rope 3 to 15 1 upward pulling force of sliding block, so that sliding block 15 upward sliding and departs from arm with arm, now
Steel wire rope 3 completely disengages with arm, and arm continues to drop, and avoids steel wire rope 3 that arm suspention is brought into more peaces in the air
Full hidden danger.
Clever structure of the present invention and easily implementation, support frame are drawn with safety rope, the second extension spring, steel wire rope, cutter, first
Spring forms complete efficient public security system, it is ensured that support frame ejects in time after arm fracture, largely ensure that ground
Personnel and the safety of facility, the casualties and property loss that the accident of effectively reducing may be brought, and during arm normal work,
The efficient public security system does not influence the normal use of arm, only starts when accident occurs, and can ensure hoisting operation just simultaneously
Often carry out and effective and safe protects；In actual implementation process, it can be set respectively in the same way in the front/rear end of arm
Support frame and the second extension spring, and it is associated with cutter through safety rope, it so can be further assured that arm will not be with ground after landing
Face directly contacts, and can prevent arm landing from producing rolling, security risk is minimized with loss.
Claims (4)
- A kind of 1. arm of derrick fracture safe protector, it is characterised in that the arm set including horizontal cross（1）, it is special Sign is, arm（1）Upper surface be provided with and arm（1）The consistent chute of length direction（2）, chute（2）Inside have and arm（1） The consistent steel wire rope of length direction（3）, steel wire rope（3）Right-hand member and chute（2）The extension spring of right side first（4）It is connected； 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）The multiple cutter inside to horizontally slip（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）Upper surface be connected, safety rope（8）It is placed in corresponding cutter（5）'s On the left of blade；Described support frame（6）Front and rear width be less than arm（1）Front and rear width, arm（1）Lower surface be provided with and support Frame（6）One-to-one downward opening slot to make way（9）, slot to make way（9）Front and rear width be not less than support frame（6）Front and rear width Degree, slot to make way（9）Front/rear end be respectively equipped with and rotating shaft（7）The vertical chute of size matching（10）, rotating shaft（7）Both ends point The vertical chute is not placed in it（10）It is interior, work as rotating shaft（7）In the vertical chute（10）During interior upward sliding, support frame（6）Right-hand member with turn Axle（7）It is mobile, slot to make way（9）Notch to support frame（6）Forming stop makes support frame（6）Produce deflection；Described slot to make way（9）Bottom land be provided with least one counterbore（11）, counterbore（11）Inside there is the second extension spring（12）, second draws Spring（12）Upper end be fixed on counterbore（11）It is interior, the second extension spring（12）Lower end and rotating shaft（7）Connection, form rotating shaft（7）Through Two extension springs（12）Pulling force effect and in the vertical chute（10）The structure of interior upward sliding.
- A kind of 2. arm of derrick fracture safe protector according to claim 1, it is characterised in that 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, cutter（5）Right side be sleeved on steel wire rope（3）On collar（14）.
- A kind of 3. arm of derrick fracture safe protector according to claim 2, it is characterised in that chute（2）The right side End is equipped with the sliding block that can be slid vertically（15）, steel wire rope（3）Right-hand member through the first extension spring（4）With sliding block（15）It is connected.
- 4. a kind of arm of derrick fracture safe protector according to any one of claims 1 to 4, it is characterised in that step down Groove（9）Left and right width and support frame（6）Width up and down it is equal, slot to make way（9）Notch at do fillet processing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457869.7A CN108439223B (en) | 2017-09-21 | 2017-09-21 | A kind of method of arm of derrick fracture safe protection |
| CN201710859818.2A CN107381361B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture safe protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859818.2A CN107381361B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture safe protective device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457869.7A Division CN108439223B (en) | 2017-09-21 | 2017-09-21 | A kind of method of arm of derrick fracture safe protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107381361A true CN107381361A (en) | 2017-11-24 |
| CN107381361B CN107381361B (en) | 2018-05-29 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457869.7A Active CN108439223B (en) | 2017-09-21 | 2017-09-21 | A kind of method of arm of derrick fracture safe protection |
| CN201710859818.2A Active CN107381361B (en) | 2017-09-21 | 2017-09-21 | A kind of arm of derrick fracture safe protective device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457869.7A Active CN108439223B (en) | 2017-09-21 | 2017-09-21 | A kind of method of arm of derrick fracture safe protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108439223B (en) |
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| CN202181180U (en) * | 2011-07-28 | 2012-04-04 | 江苏兆晶光电科技发展有限公司 | High-precision gantry hoisting frame for hoisting polycrystalline silicon ingots |
| 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 |
| CN202499669U (en) * | 2012-03-21 | 2012-10-24 | 三一汽车起重机械有限公司 | Sliding block and sliding block assembly |
| JP2012214280A (en) * | 2011-03-31 | 2012-11-08 | Sanwa Tekki Corp | Work area regulation device of on-tower 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 |
| KR20160040848A (en) * | 2014-10-06 | 2016-04-15 | 주식회사 포스코 | Apparatus and method for rope inspection |
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| DE3606590A1 (en) * | 1986-02-28 | 1987-09-03 | Oelsch Kg | Device for position (displacement) measurement in telescopic booms |
| CN201292228Y (en) * | 2008-07-23 | 2009-08-19 | 朱建收 | Telescopic boom protecting device of crane |
| CN201809088U (en) * | 2010-10-13 | 2011-04-27 | 河南航天特种车辆有限公司 | Hoisting device for goods transporting in car and in or out cabin thereof |
| CN202148151U (en) * | 2011-06-09 | 2012-02-22 | 三一汽车起重机械有限公司 | Automobile crane and multi-section telescopic arm device thereof |
| JP6529748B2 (en) * | 2014-11-25 | 2019-06-12 | 株式会社加藤製作所 | Crane car boom breakage prevention device |
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2017
- 2017-09-21 CN CN201810457869.7A patent/CN108439223B/en active Active
- 2017-09-21 CN CN201710859818.2A patent/CN107381361B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012214280A (en) * | 2011-03-31 | 2012-11-08 | Sanwa Tekki Corp | Work area regulation device of on-tower crane |
| CN202181180U (en) * | 2011-07-28 | 2012-04-04 | 江苏兆晶光电科技发展有限公司 | High-precision gantry hoisting frame for hoisting polycrystalline silicon ingots |
| CN202499669U (en) * | 2012-03-21 | 2012-10-24 | 三一汽车起重机械有限公司 | Sliding block and sliding block assembly |
| 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 |
| KR20160040848A (en) * | 2014-10-06 | 2016-04-15 | 주식회사 포스코 | Apparatus and method for rope inspection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108439223B (en) | 2019-10-01 |
| CN108439223A (en) | 2018-08-24 |
| CN107381361B (en) | 2018-05-29 |
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Inventor after: Lin Liesheng Inventor before: Lu Chengshuai |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180426 Address after: 518000 Guangdong Shenzhen Longgang District Pinghu street Southern China Road No. 1 Southern China international leather leather raw materials logistics zone two phase 13 Southern China Development Center 1301-1305 rooms Applicant after: Shenzhen Huasheng Safety Inspection Co., Ltd. Address before: No. 4, watting East Street, watting Town, Nanyang, Henan Applicant before: Lu Chengshuai |
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