CN107352402A - A kind of arm is broken active protecting device - Google Patents
A kind of arm is broken active protecting device Download PDFInfo
- Publication number
- CN107352402A CN107352402A CN201710861322.9A CN201710861322A CN107352402A CN 107352402 A CN107352402 A CN 107352402A CN 201710861322 A CN201710861322 A CN 201710861322A CN 107352402 A CN107352402 A CN 107352402A
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- CN
- China
- Prior art keywords
- arm
- support frame
- sliding block
- block
- spring
- 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
- B66C15/00—Safety gear
Abstract
The present invention relates to arm to be broken active protecting device, including there are multiple chutes arm, the upper surface of arm, have sliding block in chute, the right-hand member of sliding block is connected through the first extension spring with arm；There are front and rear slide back and forth two gripping blocks arranged side by side on sliding block, two gripping blocks are connected through the second extension spring on the outside of it with sliding block respectively；The bottom land of chute has two L-shaped grooves, and the bottom of two gripping blocks is respectively placed in two L-shaped grooves；There are front and rear two clamp arms arranged side by side on arm, right-hand member and the arm of clamp arm are hinged, and two clamp arms are placed between two gripping blocks, and the lower end of two gripping blocks clamps arm contacts through L-shaped groove and respectively with two；There are multiple support frames on arm, left end and the arm of support frame are hinged, and the left end of support frame has straight trough；There is the fixture block that can be slid vertically on arm, the upper end of fixture block is connected through spring with arm；There is safety rope on support frame, one end of safety rope is clamped between corresponding two clamp arms；Steel wire rope is clamped between two gripping blocks.
Description
Technical field
The present invention relates to technical field of crane equipment, particularly a kind of arm fracture active protecting 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 fracture master
Dynamic protector, 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 multiple chutes in direction, chute are placed in chute and water on the right side of sliding block built with the sliding block that can be slided in chute
Flat the first extension spring set, one end of the first extension spring are connected with sliding block, and the other end of the first extension spring is connected with arm, form sliding block
The structure slided to the right in chute through the first extension spring；
It can be slid back and forth on described sliding block equipped with front and rear two gripping blocks arranged side by side, gripping block on sliding block, two gripping blocks
It is connected respectively through the second extension spring with sliding block, the slip that two pulling force of the gripping block through the second extension spring do to be located remotely from each other on sliding block；
The bottom land of chute is provided with front and rear symmetrically arranged two L-shaped grooves, and L-shaped groove is connected structure by elongated slot with the short groove for being placed in elongated slot left end
Into two short grooves are respectively placed in the outside of two elongated slots, and two gripping blocks are respectively placed in two elongated slots, are clamped when sliding block drives
When block slides into the left end of elongated slot in elongated slot, two gripping blocks do the motion being located remotely from each other under the pulling force effect of the second extension spring
Make former and later two gripping blocks respectively in short groove to the outer Slideslip of arm；
Equipped with front and rear two clamp arms arranged side by side being placed in below L-shaped groove on described arm, right-hand member and the arm of clamp arm erect
To being hinged, two clamp arms, which contact with each other, to be placed between two gripping blocks, and the lower end of two gripping blocks passes through L-shaped groove and difference
With two clamping arm contacts；
Equipped with arm lower section and horizontally disposed multiple support frames is placed on described arm, support frame corresponds with sliding block,
The left end of support frame is hinged with arm through longitudinally disposed rotating shaft, and the left end of support frame is provided with opening towards the straight trough on a left side；Arm
Upper that the fixture block that is placed in and above rotating shaft and can slide vertically is housed, the lower surface of fixture block contacts with the upper surface of support frame, on arm
Equipped with the vertically arranged spring being placed in above fixture block, one end of spring contacts with arm, and the other end of spring contacts with fixture block,
When support frame is through 90 ° of axis of rotation, straight trough is corresponding with fixture block, and slide downward makes under fixture block fixture block under the action of the spring
Portion is placed in straight trough, and support frame is locked in current location and can not rotated；
Penetrate in arm and be clamped in pair equipped with the safety rope that is placed in above support frame, one end of safety rope on described support frame
Between two clamp arms answered；
Horizontally disposed steel wire rope is clamped between two gripping blocks on described any sliding block, the diameter of steel wire rope is more than two
The distance between individual gripping block makes steel wire rope be clamped block clamping.
Clever structure of the present invention, implement simple, support frame and safety rope, clamp arm, gripping block, sliding block, steel wire rope composition
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.
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 enlarged drawing of Fig. 2 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 along arm 1
Multiple chutes 2 of length direction distribution, chute 2 are put built with the sliding block 3 that can be horizontally slipped in chute 2, the right side of sliding block 3
In the chute 2 and horizontally disposed first extension spring 4, one end of the first extension spring 4 are connected with sliding block 3, the other end of the first extension spring 4 and
Arm 1 connects, and forms the structure that sliding block 3 slides to the right through the first extension spring 4 in chute 2；
It can be slid back and forth on described sliding block 3 equipped with front and rear two gripping blocks 5 arranged side by side, gripping block 5 on sliding block 3, two folders
Tight block 5 is connected through the second extension spring 6 with sliding block 3 respectively, and pulling force of two gripping blocks 5 through the second extension spring 6 does mutually remote on sliding block 3
From slip；The bottom land of chute 2 is provided with front and rear symmetrically arranged two L-shaped grooves, and L-shaped groove is by elongated slot 7 and is placed in the left end of elongated slot 7
Short groove 8 is connected composition, and two short groove 8 is respectively placed in the outside of two elongated slots 7, and the bottom of two gripping blocks 5 is respectively placed in two
In individual elongated slot 7, when sliding block 3 drives gripping block 5 to slide into the left end of elongated slot 7 in elongated slot 7, two gripping blocks 5 are drawn second
The motion being located remotely from each other is done under the pulling force effect of spring 6 makes former and later two gripping blocks 5 respectively in short groove 8 to the outer sideslip of arm 1
It is dynamic；
Equipped with front and rear two clamp arms 9 arranged side by side being placed in below L-shaped groove, the right-hand member and arm of clamp arm 9 on described arm 1
1 is vertical be hinged, and two clamp arms 9, which contact with each other, to be placed between two gripping blocks 5, and the lower end of two gripping blocks 5 passes through L-shaped groove
And contacted respectively with two clamp arms 9；
It is equipped with described arm 1 and is placed in the lower section of arm 1 and horizontally disposed multiple support frames 10, support frame 10 and sliding block 3 one
One correspondence, the left end of support frame 10 are hinged with arm 1 through longitudinally disposed rotating shaft 11, and the left end of support frame 10 is provided with opening court
Left straight trough 12；Equipped with the fixture block 13 that is placed in the top of rotating shaft 11 and can slide vertically, the lower surface of fixture block 13 and support on arm 1
The upper surface of frame 10 contacts, and equipped with the vertically arranged spring 14 for being placed in the top of fixture block 13 on arm 1, one end of spring 14 is with hanging
Arm 1 contacts, and the other end of spring 14 contacts with fixture block 13, when support frame 10 rotates 90 ° through rotating shaft 11, straight trough 12 and fixture block 13
Corresponding, slide downward makes the bottom of fixture block 13 be placed in straight trough 12 to fixture block 13 under action from the spring 14, and support frame 10 is locked
It can not only be rotated in current location；
Equipped with the safety rope 15 for being placed in the top of support frame 10 on described support frame 10, one end of safety rope 15 is penetrated in arm 1
And between two clamp arms 9 corresponding to being clamped in；
Horizontally disposed steel wire rope 16, the diameter of steel wire rope 16 are clamped between two gripping blocks 5 on described any sliding block 3
The distance between more than two gripping blocks 5 make steel wire rope 16 be clamped block 5 to clamp.
In order that sliding block 3 reaches more stable stopping effect, the first extension spring 4 in described any chute 2 has at least one
It is individual；In normal use, the pulling force of the first extension spring 4 makes sliding block 3 be still in the right-hand member of chute 2.
In order that support frame 10 reaches safer locking effect, the fixture block 13 corresponding to described each rotating shaft 11 have to
It is few one.
In order that fixture block 13 reaches more preferable slide downward effect, the spring 14 corresponding to described fixture block 13 has at least one
It is individual.
In order that the present invention reaches more easily using effect, described steel wire rope 16 has one, the quilt simultaneously of steel wire rope 16
Gripping block 5 on multiple sliding blocks 3 clamps；After the fracture of arm 1, quickly steel wire rope 16 can be reclaimed.
In order that the present invention reaches safer using effect, described steel wire rope 16 have it is multiple, each steel wire rope 16
Both ends are installed between the gripping block 5 on two adjacent sliding blocks 3 respectively；Multiple steel wire ropes 16 are independent of each other each other, when arm 1
During fracture, be not in because any gripping block 5 to steel wire rope 16 loosen have some setbacks cause hinder arm 1 be broken situation.
In order that support frame 10 reaches more rapid ejection effect, torsion spring 17, torsion spring 17 are set with described rotating shaft 11
One end be connected with support frame 10, the other end of torsion spring 17 is connected with arm 1, form torsion of the support frame 10 through torsion spring 17
Act on and produce the structure rotated clockwise.
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 16 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 the pulling force of the first extension spring 4 makes sliding block 3 be placed in chute all the time
2 right-hand member, sliding block 3 do not produce slip, and the distance between former and later two gripping blocks 5 are constant, therefore between former and later two gripping blocks 5
Steel wire rope 16 and former and later two clamp arms 9 between safety rope 15 be clamped, safety rope 15 by support frame 10 tense make support
The right-hand member of frame 10 contacts with arm 1, and support frame 10 does not produce rotation, so that the normal lifting that the present invention does not influence arm 1 is made
Industry；
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 16 is fixed and the total length of steel wire rope 16 is constant, therefore the arm on the right side of fracture position is bent downwards
Or when dropping, the distance between both ends of arm 1 produce length difference at the fracture position, simultaneously because gripping block 5 is by steel wire
Rope 16 clamps, therefore steel wire rope 16 pulls the gripping block 5 on the arm 1 on the right side of fracture position to be moved to the left and exist with movable slider 3
Slided to the left in chute 2, and the first extension spring 4 is elongated；Gripping block 5 is moved to the left i.e. gripping block 5 and slided in elongated slot 7, works as folder
When tight block 5 slides into the left end of elongated slot 7, under the pulling force effect of the second extension spring 6, former and later two gripping blocks 5 on sliding block 3 are distinguished
Along short groove 8 to the outer Slideslip of arm 1, now, the clamp arm 9 being placed between two gripping blocks 5 separates with gripping block 5, two
Safety rope 15 between clamp arm 9 is relaxed, support frame 10 produced under the twisting force of self gravitation and torsion spring 17 right-hand member to
Under rotation and safety rope 15 is pulled out into arm 1, when support frame 10 rotate 90 ° i.e. support frames 10 it is vertical with the length direction of arm 1
When, straight trough 12 is corresponding with fixture block 13, and slide downward makes the bottom of fixture block 13 be placed in straight trough to fixture block 13 under action from the spring 14
In 12, support frame 10 is locked at current location and can not be rotated further by fixture block 13；When the arm 1 of fracture drops to ground,
Support frame 10 can play good supporting role, reduce arm 1 and the contact range on ground, hit ground dough figurine is greatly reduced
Member and the probability of facility, and support frame 10 makes have larger activity space between arm 1 and ground, facilitates ground staff to carry out and saves oneself
Or rescue；
Meanwhile above-mentioned two gripping block 5 respectively along short groove 8 to the outer Slideslip of arm 1 when, the distance between two gripping blocks 5
Increase, the steel wire rope 16 between gripping block 5 is relaxed, and when arm 1 drops, steel wire rope 16 will not produce obstruction to arm 1, keep away
Exempt from steel wire rope 16 to suspend the arm 1 of fracture in the air in midair, the security risk that can not more estimate is brought to job site.
After use of the present invention, the feature such as steel wire rope 16, sliding block 3, gripping block 5, clamp arm 9 is not in damage, can be carried out
Reclaim repeatedly to be utilized.
Clever structure of the present invention, implement simple, support frame and safety rope, clamp arm, gripping block, sliding block, steel wire rope composition
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
With torsion spring, and support frame is connected through safety rope with clamp arm, so can be further assured that will not be with ground after arm landing
Directly contact, and can prevent arm landing from producing rolling, security risk is minimized with loss.
Claims (7)
1. a kind of arm is broken active protecting device, it is characterised in that the arm set including horizontal cross（1）, its feature exists
In arm（1）Upper surface be provided with and arm（1）The consistent multiple chutes of length direction（2）, chute（2）Built with can be in cunning
Groove（2）The sliding block of interior slip（3）, sliding block（3）Right side be placed in chute（2）Interior and horizontally disposed first extension spring（4）, first
Extension spring（4）One end and sliding block（3）Connection, the first extension spring（4）The other end and arm（1）Connection；Sliding block（3）Above equipped with front and rear
Two gripping blocks arranged side by side（5）, gripping block（5）Can be in sliding block（3）On slide back and forth, two gripping blocks（5）Drawn respectively through second
Spring（6）With sliding block（3）Connection, two gripping blocks（5）Through the second extension spring（6）Pulling force in sliding block（3）On do the cunning being located remotely from each other
It is dynamic；Chute（2）Bottom land be provided with front and rear symmetrically arranged two L-shaped grooves, L-shaped groove is by elongated slot（7）Be placed in elongated slot（7）Left end
Short groove（8）Be connected composition, two short grooves（8）It is respectively placed in two elongated slots（7）Outside, two gripping blocks（5）Lower part
Two elongated slots are not placed in（7）It is interior；
Described arm（1）It is upper that front and rear two clamp arms arranged side by side being placed in below L-shaped groove are housed（9）, clamp arm（9）Right-hand member
With arm（1）It is vertical be hinged, two clamp arms（9）Contact with each other and be placed in two gripping blocks（5）Between, two gripping blocks（5）
Lower end through L-shaped groove and respectively with two clamp arms（9）Contact；
Described arm（1）Upper be equipped with is placed in arm（1）Lower section and horizontally disposed multiple support frames（10）, support frame（10）With
Sliding block（3）Correspond, support frame（10）Left end and arm（1）Through longitudinally disposed rotating shaft（11）It is hinged, support frame
（10）Left end be provided with opening towards a left side straight trough（12）；Arm（1）Upper be equipped with is placed in rotating shaft（11）Top simultaneously can slide vertically
Fixture block（13）, fixture block（13）Lower surface and support frame（10）Upper surface contact, arm（1）Upper be equipped with is placed in fixture block（13）On
The vertically arranged spring of side（14）, spring（14）One end and arm（1）Contact, spring（14）The other end and fixture block（13）
Contact；
Described support frame（10）Upper be equipped with is placed in support frame（10）The safety rope of top（15）, safety rope（15）One end penetrate
Arm（1）It is interior and be clamped in safety rope（15）The support frame at place（10）Two corresponding clamp arms（9）Between；
Described any sliding block（3）On two gripping blocks（5）Between be clamped with horizontally disposed steel wire rope（16）, steel wire rope
（16）Diameter be more than two gripping blocks（5）The distance between make steel wire rope（16）It is clamped block（5）Clamp.
A kind of 2. arm fracture active protecting device according to claim 1, it is characterised in that any chute（2）Interior
First extension spring（4）Have at least one.
A kind of 3. arm fracture active protecting device according to claim 1, it is characterised in that each rotating shaft（11）Institute is right
The fixture block answered（13）Have at least one.
4. active protecting device is broken according to a kind of any described arm of claim 1 or 3, it is characterised in that each rotating shaft
（11）The fixture block of top（13）Corresponding spring（14）Have at least one.
A kind of 5. arm fracture active protecting device according to any one of claims 1 to 4, it is characterised in that steel wire rope
（16）There is one, steel wire rope（16）Simultaneously by multiple sliding blocks（3）On gripping block（5）Clamp.
A kind of 6. arm fracture active protecting device according to any one of claims 1 to 4, it is characterised in that steel wire rope
（16）There is multiple, each steel wire rope（16）Both ends be installed in two adjacent sliding blocks respectively（3）On gripping block（5）Between.
7. a kind of arm fracture active protecting device according to any one of claims 1 to 4, it is characterised in that described turns
Axle（11）On be set with torsion spring（17）, torsion spring（17）One end and support frame（10）It is connected, torsion spring（17）The other end with hanging
Arm（1）It is connected, forms support frame（10）Through torsion spring（17）Twisting force and produce the structure rotated counterclockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861322.9A CN107352402B (en) | 2017-09-21 | 2017-09-21 | A kind of arm fracture active protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861322.9A CN107352402B (en) | 2017-09-21 | 2017-09-21 | A kind of arm fracture active protecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107352402A true CN107352402A (en) | 2017-11-17 |
| CN107352402B CN107352402B (en) | 2018-08-03 |
Family
ID=60291098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861322.9A Active CN107352402B (en) | 2017-09-21 | 2017-09-21 | A kind of arm fracture active protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107352402B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335283A (en) * | 2000-05-29 | 2001-12-04 | Tadano Eng:Kk | Assembly/disassembly type portal lifter |
| CN103359617A (en) * | 2012-03-26 | 2013-10-23 | 株式会社多田野 | Work machine |
| CN203715098U (en) * | 2014-01-10 | 2014-07-16 | 中联重科股份有限公司 | Broken rope detection device and suspension arm |
| CN104995124A (en) * | 2012-11-29 | 2015-10-21 | 赫思曼自动化控制有限公司 | Cable breakage diagnosis in a crane |
| CN105293302A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Tower crane with wind resistance function |
| JP2016098092A (en) * | 2014-11-25 | 2016-05-30 | 株式会社加藤製作所 | Boom breakage prevention device of crane vehicle |
-
2017
- 2017-09-21 CN CN201710861322.9A patent/CN107352402B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335283A (en) * | 2000-05-29 | 2001-12-04 | Tadano Eng:Kk | Assembly/disassembly type portal lifter |
| CN103359617A (en) * | 2012-03-26 | 2013-10-23 | 株式会社多田野 | Work machine |
| CN104995124A (en) * | 2012-11-29 | 2015-10-21 | 赫思曼自动化控制有限公司 | Cable breakage diagnosis in a crane |
| CN203715098U (en) * | 2014-01-10 | 2014-07-16 | 中联重科股份有限公司 | Broken rope detection device and suspension arm |
| JP2016098092A (en) * | 2014-11-25 | 2016-05-30 | 株式会社加藤製作所 | Boom breakage prevention device of crane vehicle |
| CN105293302A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Tower crane with wind resistance function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107352402B (en) | 2018-08-03 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180621 Address after: 200333 Chaozhou Road, Putuo District, Putuo District, Shanghai, No. 509, No. 509 Applicant after: Shanghai Shang an Machinery Construction Co., Ltd. Address before: No. 4, watting East Street, watting Town, Nanyang, Henan Applicant before: Lu Chengshuai |
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