CN107352402B - A kind of arm fracture active protecting device - Google Patents
A kind of arm fracture active protecting device Download PDFInfo
- Publication number
- CN107352402B CN107352402B CN201710861322.9A CN201710861322A CN107352402B CN 107352402 B CN107352402 B CN 107352402B CN 201710861322 A CN201710861322 A CN 201710861322A CN 107352402 B CN107352402 B CN 107352402B
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- CN
- China
- Prior art keywords
- arm
- sliding
- block
- supporting rack
- sliding block
- 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 arms to be broken active protecting device, including there are multiple sliding slots in arm, the upper surface of arm, have sliding block, the right end of sliding block to be connect with arm through the first tension spring in sliding slot；There are front and back two gripping blocks capable of sliding back and forth arranged side by side, two gripping blocks to be connect respectively with sliding block through the second tension spring on the outside of it on sliding block；There are two L-shaped grooves for the slot bottom of sliding slot, and the lower part of two gripping blocks is respectively placed in two L-shaped grooves；The right end of two clamp arms arranged side by side before and after having on arm, clamp arm is hinged with arm, and two clamp arms are placed between two gripping blocks, and the lower end of two gripping blocks passes through L-shaped groove and clamps arm contacts with two respectively；There are multiple supporting racks on arm, the left end of supporting rack is hinged with arm, and the left end of supporting rack has straight trough；There are the fixture block that can be slid vertically, the upper end of fixture block to be connect with arm through spring on arm；There are safety rope, one end of safety rope to be clamped between corresponding two clamp arms on supporting rack；It is clamped with steel wire rope between two gripping blocks.
Description
Technical field
The present invention relates to technical field of crane equipment, especially a kind of arm is broken active protecting device.
Background technology
In lifting appliance field, some large-scale lifting machinery such as tower crane, bridge crane, truck-mounted crane etc. are required for using arm
To complete raising and the transhipment of weight, wherein truck-mounted crane is because its flexible operational and mobility is increasingly by the blueness of people
It looks at；However, in recent years, the arm fracture accident of truck-mounted crane happens occasionally, post-rift arm, which will produce, to fall, and due to arm
Own wt is larger, and operating position is higher, when arm falls to ground or platform, different degrees of personnel is easily caused to hinder
It dies and is damaged with the vehicle of construction 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.
Invention content
For the above situation, to make up the technical deficiency present in the prior art, the present invention provides a kind of arm fracture master
Dynamic protective device, to reduce the casualties and property loss in arm fracture accident as far as possible.
Its solve technical solution be：Include the arm of horizontal cross setting, the upper surface of arm is equipped with and length of boom
The consistent multiple sliding slots in direction, sliding slot is interior to be equipped with the sliding block that can be slided in sliding slot, and simultaneously water is placed in sliding slot on the right side of sliding block
First tension spring of flat setting, one end of the first tension spring are connect with sliding block, and the other end of the first tension spring is connect with arm, constitute sliding block
The structure slided to the right in sliding slot through the first tension spring；
It can be slid back and forth on sliding block equipped with front and back two gripping blocks arranged side by side, gripping block on the sliding block, two folders
Tight block is connect through the second tension spring with sliding block respectively, the cunning that two pulling force of the gripping block through the second tension spring do to be located remotely from each other on sliding block
It is dynamic；The slot bottom of sliding slot is equipped with front and back symmetrically arranged two L-shaped grooves, and L-shaped groove is connected by elongated slot with the short slot for being placed in elongated slot left end
Logical to constitute, two short slots are respectively placed in the outside of two elongated slots, and two gripping blocks are respectively placed in two elongated slots, when sliding block drives
When gripping block slides into the left end of elongated slot in elongated slot, two gripping blocks are done under the pulling force effect of the second tension spring to be located remotely from each other
Movement makes former and later two gripping blocks respectively in short slot to the outer Slideslip of arm；
Equipped with front and back two clamp arms arranged side by side being placed in below L-shaped groove on the arm, the right end of clamp arm with hang
Arm is vertically hinged, and 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 simultaneously
Respectively arm contacts are clamped with two；
Equipped with arm lower section and horizontally disposed multiple supporting racks is placed on the arm, supporting rack is a pair of with sliding block one
It answers, the left end of supporting rack is hinged with arm through longitudinally disposed shaft, and the left end of supporting rack is equipped with opening towards left straight trough；It hangs
Equipped with the fixture block that above shaft and can be slid vertically is placed on arm, the lower face of fixture block is contacted with the upper surface of supporting rack, arm
Upper that the vertically arranged spring being placed in above fixture block is housed, one end of spring is contacted with arm, and the other end and the fixture block of spring connect
It touches, when supporting rack rotates 90 ° through shaft, straight trough is corresponding with fixture block, and slide downward makes fixture block to fixture block under the action of the spring
Lower part be placed in straight trough, supporting rack is locked in current location and can not rotate；
It penetrates in arm and clamps equipped with the safety rope being placed in above supporting rack, one end of safety rope on the supporting rack
Between corresponding two clamp arms；
It is clamped with horizontally disposed steel wire rope between two gripping blocks on any sliding block, the diameter of steel wire rope is big
Make steel wire rope be clamped block in the distance between two gripping blocks to clamp.
Structure of the invention is ingenious, implements simple, supporting rack and safety rope, clamp arm, gripping block, sliding block, steel wire rope composition
Complete efficient public security system, it is ensured that supporting rack arm fracture after pop up in time, largely ensure ground staff with
When the safety of facility, the casualties and property loss that the accident of effectively reducing may be brought, and arm work normally, 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
It is protected with effective and safe.
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 the C portion of Fig. 1 of the present invention.
Fig. 5 is the enlarged drawing of the parts D of Fig. 2 of the present invention.
Fig. 6 is the isometric cutaway view of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in further detail below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 6, the present invention includes the arm 1 of horizontal cross setting, and the upper surface of arm 1 is equipped with along arm 1
Multiple sliding slots 2 of length direction distribution, sliding slot 2 is interior equipped with the sliding block 3 that can be horizontally slipped in sliding slot 2, and the right side of sliding block 3 is set
In the sliding slot 2 and horizontally disposed first tension spring 4, one end of the first tension spring 4 is connect with sliding block 3, the other end of the first tension spring 4 and
Arm 1 connects, and constitutes the structure that sliding block 3 slides to the right through the first tension spring 4 in sliding slot 2；
It can be slid back and forth on sliding block 3 equipped with front and back two gripping blocks 5 arranged side by side, gripping block 5 on the sliding block 3, two
A gripping block 5 is connect through the second tension spring 6 with sliding block 3 respectively, and pulling force of two gripping blocks 5 through the second tension spring 6 does phase on sliding block 3
Mutually separate sliding；The slot bottom of sliding slot 2 is equipped with front and back symmetrically arranged two L-shaped grooves, and L-shaped groove is by elongated slot 7 and is placed in 7 left side of elongated slot
The short slot 8 at end is connected composition, and two short slots 8 are respectively placed in the outside of two elongated slots 7, and the lower part of two gripping blocks 5 is set respectively
In in two elongated slots 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 the
The movement being located remotely from each other is done under the pulling force effect of two tension springs 6 makes former and later two gripping blocks 5 respectively in short slot 8 to the outer of arm 1
Slideslip；
Equipped with front and back two clamp arms 9 arranged side by side being placed in below L-shaped groove on the arm 1, the right end of clamp arm 9 with
Arm 1 is vertically 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
Shape slot is simultaneously contacted with two clamp arms 9 respectively；
It is equipped on the arm 1 and is placed in 1 lower section of arm and horizontally disposed multiple supporting racks 10, supporting rack 10 and sliding block
3 correspond, and the left end of supporting rack 10 is hinged with arm 1 through longitudinally disposed shaft 11, and the left end of supporting rack 10, which is equipped with, to be opened
Straight trough 12 of the mouth towards a left side；Equipped with the fixture block 13 that is placed in the top of shaft 11 and can slide vertically on arm 1, the lower face of fixture block 13 with
The upper surface of supporting rack 10 contacts, equipped with the vertically arranged spring 14 for being placed in 13 top of fixture block, one end of spring 14 on arm 1
It being contacted with arm 1, the other end of spring 14 is contacted with fixture block 13, when supporting rack 10 rotates 90 ° through shaft 11, straight trough 12 and card
Block 13 is corresponding, and slide downward makes the lower part of fixture block 13 be placed in straight trough 12 to fixture block 13 under action from the spring 14, supporting rack 10
It is locked in current location and can not rotate；
Equipped with the safety rope 15 for being placed in 10 top of supporting rack on the supporting rack 10, one end of safety rope 15 penetrates arm
In 1 and it is clamped between corresponding two clamp arms 9；
It is clamped with horizontally disposed steel wire rope 16 between two gripping blocks 5 on any sliding block 3, steel wire rope 16
Diameter, which is more than the distance between two gripping blocks 5, makes steel wire rope 16 be clamped the clamping of block 5.
For the stopping effect for making sliding block 3 reach more stable, the first tension spring 4 in any sliding slot 2 has at least one
It is a；In normal use, the pulling force of the first tension spring 4 makes sliding block 3 be still in the right end of sliding slot 2.
For the locking effect for making supporting rack 10 reach safer, the fixture block 13 corresponding to each shaft 11 have to
It is one few.
In order to make fixture block 13 reach better slide downward effect, the spring 14 corresponding to the fixture block 13 has at least one
It is a.
In order to make the present invention reach more easily using effect, there are one the steel wire ropes 16, steel wire rope 16 while quilt
Gripping block 5 on multiple sliding blocks 3 clamps；After the fracture of arm 1, quickly steel wire rope 16 can be recycled.
In order to make the present invention reach safer using effect, the steel wire rope 16 have it is multiple, each steel wire rope 16
Both ends are installed in respectively between the gripping block 5 on two adjacent sliding blocks 3；Multiple steel wire ropes 16 are independent of each other each other, when arm 1
When fracture, be not in because any gripping block 5 to steel wire rope 16 loosen have some setbacks due to cause hinder arm 1 be broken the case where.
In order to make supporting rack 10 reach more rapid pop-up effect, torsional spring 17, torsional spring 17 are set in the shaft 11
One end be connected with supporting rack 10, the other end of torsional spring 17 is connected with arm 1, constitute torsion of the supporting rack 10 through torsional spring 17
It acts on and generates the structure rotated clockwise.
In use, arm 1 rotates counterclockwise to lift by crane direction, i.e. the left end of arm 1 connect with lifting equipment, hangs the present invention
The right end of arm 1 is connect with weight, and the left end of steel wire rope 16 connect with the left end of arm 1 or connect with lifting equipment；
In normal lifting operations, arm 1 is used as conventional arm, and the pulling force of the first tension spring 4 makes sliding block 3 be placed in always
The right end of sliding slot 2, sliding block 3 do not generate sliding, and the distance between former and later two gripping blocks 5 are constant, therefore former and later two gripping blocks 5
Between steel wire rope 16 and former and later two clamp arms 9 between safety rope 15 be clamped, safety rope 15 by supporting rack 10 tension make
The right end of supporting rack 10 is contacted with arm 1, and supporting rack 10 does not generate rotation, is risen to make the present invention not influence the normal of arm 1
Crane operation；
When arm 1 produces fracture at an arbitrary position, the boom portion on the right side of the fracture position generate downward bending or
Fall, since the left end of steel wire rope 16 is fixed and the total length of steel wire rope 16 is constant, arm on the right side of fracture position to
Lower bending or when falling, the distance between both ends of arm 1 generate length difference at the fracture position, simultaneously because gripping block 5
Steel wire rope 16 is clamped, 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 drive cunning
Block 3 slides to the left in sliding slot 2, and the first tension spring 4 is elongated；Gripping block 5 is moved to the left the i.e. sliding in elongated slot 7 of gripping block 5,
When gripping block 5 slides into the left end of elongated slot 7, under the pulling force effect of the second tension spring 6, former and later two gripping blocks 5 on sliding block 3
Respectively along short slot 8 to the outer Slideslip of arm 1, at this point, the clamp arm 9 being placed between two gripping blocks 5 is detached with gripping block 5,
Safety rope 15 between two clamp arms 9 is relaxed, and supporting rack 10 generates the right side under the twisting force of its own gravity and torsional spring 17
It holds downward rotation and safety rope 15 is pulled out into arm 1, when supporting rack 10 rotates 90 ° i.e. supporting rack 10 and 1 length direction of arm
When vertical, straight trough 12 is corresponding with fixture block 13, and slide downward makes the lower part of fixture block 13 be placed in fixture block 13 under action from the spring 14
In straight trough 12, supporting rack 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
When, supporting rack 10 can play good supporting role, so that arm 1 and the contact range on ground is reduced, be greatly reduced hitly
The probability of dough figurine person and facility, and supporting rack 10 makes have larger activity space between arm 1 and ground, and ground staff is facilitated to carry out
It saves oneself or rescues；
Meanwhile above-mentioned two gripping block 5 respectively along outer Slideslip of the short slot 8 to arm 1 when, between two gripping blocks 5
Distance increases, and the steel wire rope 16 between gripping block 5 is relaxed, and when arm 1 drops, steel wire rope 16 will not generate resistance to arm 1
Hinder, avoids steel wire rope 16 that the suspention of arm 1 of fracture in the air, more unpredictable security risks is brought to construction site.
After use of the present invention, the features such as steel wire rope 16, sliding block 3, gripping block 5, clamp arm 9 are not in damage, can be carried out
Recycling is repeatedly to be utilized.
Structure of the invention is ingenious, implements simple, supporting rack and safety rope, clamp arm, gripping block, sliding block, steel wire rope composition
Complete efficient public security system, it is ensured that supporting rack arm fracture after pop up in time, largely ensure ground staff with
When the safety of facility, the casualties and property loss that the accident of effectively reducing may be brought, and arm work normally, 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
It is protected with effective and safe；In the actual implementation process, supporting rack can be respectively set in the same way in the front/rear end of arm
With torsional spring, and supporting rack is connected through safety rope with clamp arm, can be further assured that in this way will not be with ground after arm landing
It is in direct contact, and can prevent arm landing from generating rolling, security risk is made to be minimized with loss.
Claims (7)
1. a kind of arm is broken active protecting device, include the arm of horizontal cross setting（1）, which is characterized in that arm（1）'s
Upper surface is equipped with and arm（1）The consistent multiple sliding slots of length direction（2）, sliding slot（2）Interior be equipped with can be in sliding slot（2）Interior sliding
Sliding block（3）, sliding block（3）Right side be placed in sliding slot（2）Interior and horizontally disposed first tension spring（4）, the first tension spring（4）One end
With sliding block（3）Connection, the first tension spring（4）The other end and arm（1）Connection；Sliding block（3）It is upper that front and back two folders arranged side by side are housed
Tight block（5）, gripping block（5）It can be in sliding block（3）On slide back and forth, two gripping blocks（5）Respectively through the second tension spring（6）With sliding block
（3）Connection, two gripping blocks（5）Through the second tension spring（6）Pulling force in sliding block（3）On do the sliding being located remotely from each other；Sliding slot（2）'s
Slot bottom is equipped with front and back symmetrically arranged two L-shaped grooves, and L-shaped groove is by elongated slot（7）Be placed in elongated slot（7）The short slot of left end（8）It is connected
It is logical to constitute, two short slots（8）It is respectively placed in two elongated slots（7）Outside, two gripping blocks（5）Lower part be respectively placed in it is two long
Slot（7）It is interior；
The arm（1）It is upper that front and back two clamp arms arranged side by side being placed in below L-shaped groove are housed（9）, clamp arm（9）Right end
With arm（1）It is vertical hinged, two clamp arms（9）It contacts with each other and is placed in two gripping blocks（5）Between, two gripping blocks（5）
Lower end pass through L-shaped groove and respectively with two clamp arms（9）Contact；
The arm（1）Upper be equipped with is placed in arm（1）Lower section and horizontally disposed multiple supporting racks（10）, supporting rack（10）With
Sliding block（3）It corresponds, supporting rack（10）Left end and arm（1）Through longitudinally disposed shaft（11）It is hinged, supporting rack
（10）Left end be equipped with opening towards left straight trough（12）；Arm（1）Upper be equipped with is placed in shaft（11）Top can simultaneously slide vertically
Fixture block（13）, fixture block（13）Lower face and supporting rack（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；
The supporting rack（10）Upper be equipped with is placed in supporting rack（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 supporting rack at place（10）Two corresponding clamp arms（9）Between；
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）It clamps.
2. a kind of arm according to claim 1 is broken active protecting device, which is characterized in that any sliding slot（2）Interior
First tension spring（4）Have at least one.
3. a kind of arm according to claim 1 is broken active protecting device, which is characterized in that each shaft（11）Institute is right
The fixture block answered（13）Have at least one.
4. being broken active protecting device according to a kind of any arm of claim 1 or 3, which is characterized in that each shaft
（11）The fixture block of top（13）Corresponding spring（14）Have at least one.
5. a kind of arm according to claim 1 is broken active protecting device, which is characterized in that steel wire rope（16）Have one
It is a, steel wire rope（16）Simultaneously by multiple sliding blocks（3）On gripping block（5）It clamps.
6. a kind of arm according to claim 1 is broken active protecting device, which is characterized in that steel wire rope（16）Have more
It is a, 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 according to claim 1 is broken active protecting device, which is characterized in that the shaft（11）On
It is set with torsional spring（17）, torsional spring（17）One end and supporting rack（10）It is connected, torsional spring（17）The other end and arm（1）It is connected
It connects, constitutes supporting rack（10）Through torsional spring（17）Twisting force and generate 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 CN107352402A (en) | 2017-11-17 |
| CN107352402B true 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 |
|---|---|
| CN107352402A (en) | 2017-11-17 |
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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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