CN107555328B - Arm of derrick is broken the active protecting device that falls - Google Patents
Arm of derrick is broken the active protecting device that falls Download PDFInfo
- Publication number
- CN107555328B CN107555328B CN201710861301.7A CN201710861301A CN107555328B CN 107555328 B CN107555328 B CN 107555328B CN 201710861301 A CN201710861301 A CN 201710861301A CN 107555328 B CN107555328 B CN 107555328B
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- Prior art keywords
- boom
- support frame
- gear
- spring
- screw rod
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- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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- Emergency Lowering Means (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to arm of derricks to be broken the active protecting device that falls, including boom, boom is equipped with sliding slot, has wirerope in sliding slot, the right end of wirerope is connect with boom, the multiple sliding blocks that can be horizontally slipped are housed on wirerope, has rack gear on sliding block, there is the gear being engaged with rack on boom, there is the screw rod connecting with gear coaxially slide on gear, screw rod, through being threadedly coupled, is equipped with torsional spring, the both ends of torsional spring are connect with boom and gear respectively with boom on boom；There are the multiple support frames being placed in below boom on boom, support frame and sliding block correspond, and the left end of support frame and boom are hinged through shaft, and there is straight trough in the left end of support frame；There are the fixture block that can be slid vertically, the lower end surface of fixture block and the upper end face contact of support frame on boom, has the spring being placed in above fixture block on boom, the both ends of spring are contacted with boom and fixture block respectively；Safety rope is housed, one end of safety rope is penetrated in boom vertically upward and the rear end through screw rod is extruded on boom on support frame.
Description
Technical field
The present invention relates to technical field of crane equipment, especially arm of derricks to be broken the active protecting device that falls.
Background technique
In lifting appliance field, the lifting machinery such as tower crane, bridge crane, truck-mounted crane etc. of some large sizes is required using boom
To complete the raising and 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 boom fracture accident of truck-mounted crane happens occasionally, post-rift boom, which can generate, to fall, and due to boom
Own wt is larger, and operating position is higher, when boom falls to ground or platform, different degrees of personnel is easily caused to hurt
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.
Summary of the invention
For above situation, to make up technical deficiency present in the prior art, it is disconnected that the present invention provides a kind of arm of derrick
The active protecting device that falls is split, to reduce the casualties and property loss in boom fracture accident as far as possible.
Its technical solution solved is: the boom including horizontal cross setting, boom are equipped with and length of boom direction one
The sliding slot of cause has in sliding slot and connect with boom, fill on wirerope with the consistent wirerope in length of boom direction, the right end of wirerope
Have a multiple sliding blocks that can be horizontally slipped in sliding slot, equipped with the rack gear being placed in below sliding block on sliding block, the length direction of rack gear with
The length direction of boom is consistent, and equipped with the gear being meshed with rack gear on boom, gear is placed in the lower section of rack gear, is equipped on gear
With the screw rod of gear coaxial arrangement, the outer edge surface of screw rod be equipped with the consistent straight trough in spiro rod length direction, gear be equipped with
The inward flange that straight trough matches, inward flange are placed in straight trough and can slide in straight trough, screw rod with boom through being threadedly coupled, boom
Upper equipped with the torsional spring being placed on front side of gear, one end of torsional spring is connect with boom, and the other end of torsional spring is connect with gear, constitutes torsional spring
Twisting force make gear drive screw rod simultaneously rotate, screw rod rotate when boom between generation worm drive transport screw rod backward
Dynamic structure；
Equipped with boom lower section and horizontally disposed multiple support frames is placed on the boom, support frame and sliding block one are a pair of
It answers, the left end of support frame and boom are hinged through longitudinally disposed shaft, and the left end of support frame is equipped with opening towards left straight trough；It hangs
Equipped with the fixture block that is placed in shaft top and can slide vertically, the lower end surface of fixture block and the upper end face contact of support frame, boom on arm
Upper that the vertically arranged spring being placed in above fixture block is housed, one end of spring is contacted with boom, and the other end and the fixture block of spring connect
Touching, when support frame is through shaft rotation °, straight trough is corresponding with fixture block, and slide downward makes fixture block to fixture block under the action of the spring
Lower part is placed in straight trough, and support frame is locked in current location and can not rotate；
Equipped with the safety rope being placed in above support frame on the support frame, one end of safety rope penetrates boom vertically upward
Interior and through screw rod rear end is extruded on boom.
Structure of the invention is ingenious, implements simple, support frame and safety rope, screw rod, gear, rack gear, sliding block, wirerope composition
Complete efficient public security system, it is ensured that support frame boom fracture after pop up in time, largely ensure ground staff with
The safety of facility effectively reduces the possible casualties of accident and property loss, and when boom normal work, the safety
Security system does not influence the normal use of boom, only starts when accident occurs, can guarantee being normally carried out for hoisting operation simultaneously
It is protected with effective and safe.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is A-A cross-sectional view of the invention.
Fig. 3 is B-B cross-sectional view of the invention.
Fig. 4 is the enlarged drawing of the C portion of Fig. 1 of the invention.
Fig. 5 is isometric cutaway view of the invention.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
It is provided by Fig. 1 to Fig. 5, the present invention includes the boom 1 of horizontal cross setting, and boom 1 is equipped with and 1 length side of boom
To consistent sliding slot 2, has in sliding slot 2 and is connect with the consistent wirerope 3 of 1 length direction of boom, the right end of wirerope 3 with boom 1,
The multiple sliding blocks 4 that can be horizontally slipped in sliding slot 2 are housed on wirerope 3, the rack gear 5 for being placed in 4 lower section of sliding block is housed on sliding block 4,
The length direction of rack gear 5 is consistent with the length direction of boom 1, and equipped with the gear 6 being meshed with rack gear 5 on boom 1, gear 6 is set
In the lower section of rack gear 5, equipped with the screw rod 7 being coaxially disposed with gear 6 on gear 6, the outer edge surface of screw rod 7 is equipped with long with screw rod 7
Spend the consistent straight trough 8 in direction, gear 6 is equipped with the inward flange 9 that matches with straight trough 8, and inward flange 9 is placed in straight trough 8 and can be
Sliding in straight trough 8, screw rod 7 are equipped with the torsional spring 10 for being placed in 6 front side of gear with boom 1 through being threadedly coupled, on boom 1, torsional spring 10
One end is connect with boom 1, and the other end of torsional spring 10 is connect with gear 6, and the twisting force for constituting torsional spring 10 makes gear 6 drive screw rod
7 rotate simultaneously, generate the structure that worm drive move screw rod 7 backward when screw rod 7 rotates between boom 1；
It is equipped on the boom 1 and is placed in 1 lower section of boom and horizontally disposed multiple support frames 11, support frame 11 and sliding block
4 correspond, and the left end of support frame 11 is hinged with boom 1 through longitudinally disposed shaft 12, and the left end of support frame 11, which is equipped with, opens
Straight trough 13 of the mouth towards a left side；Equipped with the fixture block 14 that is placed in the top of shaft 12 and can slide vertically on boom 1, the lower end surface of fixture block 14 with
The upper end face contact of support frame 11, equipped with the vertically arranged spring 15 for being placed in 14 top of fixture block, one end of spring 15 on boom 1
It being contacted with boom 1, the other end of spring 15 is contacted with fixture block 14, when support frame 11 rotates 90 ° through shaft, straight trough 13 and fixture block
14 is corresponding, and slide downward under the action of spring 15 of fixture block 14 is placed in the lower part of fixture block 14 in straight trough 13,11 quilt of support frame
It is locked at current location and can not rotate；
Equipped with the safety rope 16 for being placed in 11 top of support frame on the support frame 11, one end of safety rope 16 is vertically upward
It penetrates in boom 1 and the rear end through screw rod 7 is extruded on boom 1.
For the fixed effect for making safety rope 16 reach more reliable, the right end and 1 drawn bullet of boom of the wirerope 3
Spring 17 is connected；The pulling force of extension spring 17 makes wirerope 3 keep tensing, and band movable slider 4 and tooth in 3 cinching process of wirerope
Item 5 slides to the right, and then generates gear 6 with screw rod 7 and rotate clockwise, and rotating clockwise for screw rod 7 makes screw rod 7 and boom 1
Worm drive backward are generated, the upper end of safety rope 16 is pressed on boom 1 by the rear end of screw rod 7.
In order to make support frame 11 reach more rapid pop-up effect, it is set with torque spring 18 in the shaft 12, turns round
One end of power spring 18 is connected with support frame 11, and the other end of torque spring 18 is connected with boom 1, constitutes support frame 11 and passes through
The twisting force of torque spring 18 and generate the structure rotated clockwise.
For the locking effect for making support frame 11 reach safer, fixture block 14 corresponding to each shaft 12 have to
It is one few.
In order to make fixture block 14 reach better slide downward effect, spring 15 corresponding to the fixture block 14 has at least one
It is a.
In use, boom 1 rotates counterclockwise to lift by crane direction, i.e. the left end of boom 1 connect with lifting equipment, hangs the present invention
The right end of arm 1 is connect with weight, and the left end of wirerope 3 is fixed on boom 1 or lifting equipment；
In normal lifting operations, boom 1 is used as conventional boom, and under the twisting force of torsional spring 10, gear 6 is driven
Screw rod 7 rotates clockwise, and generates worm drive backward when screw rod 7 rotates clockwise between boom 1 and makes screw rod 7 in tooth
Sliding backward is generated on wheel 6, the movement backward of screw rod 7 makes the rear end of screw rod 7 that the upper end of safety rope 16 is pressed on boom 1
On, while under the pulling force effect of extension spring 17, the right end of wirerope 3 moves right and tenses wirerope 3, wirerope 3
When tension, the sliding block 4 that is mounted on wirerope 3 generates sliding to the right and with carry-over bar 5 while moving, and rack gear 5 moves right
When band moving gear 6 rotate clockwise, to make screw rod 7 and boom 1 does further worm drive backward, safety rope 16
Upper end is further compressed by the rear end of screw rod 7 is reliably fixed the upper end of safety rope 16 on boom 1, support frame 11
It is fixed on boom 1 and can not rotate under the action of safety rope 16, therefore the present invention does not influence the normal lifting work of boom 1
Industry.
When boom 1 produces fracture at an arbitrary position, the boom portion on the right side of the fracture position generate downward bending or
It falls, since the left end of wirerope 3 is fixed and the total length of wirerope 3 is constant, the boom on the right side of fracture position is downward
When bending or falling, the distance between both ends of boom 1 generate length difference at the fracture position, simultaneously because sliding block 4 and steel
Cord 3 connect, therefore wirerope 3 pull fracture position on the right side of boom 1 on sliding block 4 slide to the left and with carry-over bar 5 to the left
It is mobile, and extension spring 17 is elongated；Moving downward for rack gear 5 rotates counterclockwise the generation of gear 6, and screw rod 7 is synchronous with gear 6
Rotation, forward worm drive are generated between boom 1 and generate screw rod 7 forward on gear 6 when screw rod 7 rotates counterclockwise
Sliding, travelling forward for screw rod 7 be gradually distance from the rear end of screw rod 7 and the upper end of safety rope 16, and safety rope 16 is relaxed；
At this time under the self gravity of support frame 11 and the collective effect of the torsion of torque spring 18, support frame 11 does up time
Safety rope 16 is simultaneously pulled out boom 1 by needle rotation, when it is that support frame 11 is vertical with 1 length direction of boom that support frame 11, which rotates 90 °,
Straight trough 13 is corresponding with fixture block 14, and slide downward under the action of spring 15 of fixture block 14 makes the lower part of fixture block 14 be placed in straight trough 13
Interior, support frame 11 is locked at current location and can not be continued to rotate by fixture block 14；When the boom 1 of fracture tenesmus to ground, branch
Support 11 can play good supporting role, reduce the contact range on boom 1 and ground, hit ground staff is greatly reduced
With the probability of facility, and support frame 11 makes have larger activity space between boom 1 and ground, facilitate ground staff carry out save oneself or
Rescue；
In addition, when the angle that boom 1 is bent is larger or the boom 1 of fracture falls downwards, since 3 length of wirerope is constant
And wirerope 3 has good tensile property, therefore after extension spring 17 is stretched to maximal tensility, in the boom of fracture
Under 1 gravity and inertia force effect, extension spring 17 is pulled off itself or the connection of extension spring 17 and wirerope 3 or boom 1
Position is pulled off or is forced out, will because being hindered the variation for generating orientation of falling or wirerope 3 to avoid the boom 1 to fall
The suspention of boom 1 of fracture brings more unpredictable security risks in the sky, to construction site.
Structure of the invention is ingenious, implements simple, support frame and safety rope, screw rod, gear, rack gear, sliding block, wirerope composition
Complete efficient public security system, it is ensured that support frame boom fracture after pop up in time, largely ensure ground staff with
The safety of facility effectively reduces the possible casualties of accident and property loss, and when boom normal work, the safety
Security system does not influence the normal use of boom, only starts when accident occurs, can guarantee being normally carried out for hoisting operation simultaneously
It is protected with effective and safe；In the actual implementation process, support frame can be respectively set in the same way in the front/rear end of boom
With torque spring, and support frame is connected through safety rope with boom, can be further assured that in this way will not be with ground after boom landing
Face directly contacts, and can prevent boom landing from generating rolling, minimizes security risk with loss.
Claims (5)
- The active protecting device 1. arm of derrick fracture is fallen, the boom (1) including horizontal cross setting, which is characterized in that boom (1) be equipped with the consistent sliding slot of boom (1) length direction (2), have in sliding slot (2) and the consistent steel of boom (1) length direction The right end of cord (3), wirerope (3) is connect with boom (1), more equipped with that can horizontally slip in sliding slot (2) on wirerope (3) A sliding block (4), equipped with the rack gear (5) being placed in below sliding block (4) on sliding block (4), the length direction of rack gear (5) and boom (1) Length direction is consistent, and equipped with the gear (6) being meshed with rack gear (5) on boom (1), gear (6) is placed in the lower section of rack gear (5), Equipped with the screw rod (7) being coaxially disposed with gear (6) on gear (6), the outer edge surface of screw rod (7) is equipped with and screw rod (7) length side To consistent straight trough (8), gear (6) is equipped with the inward flange (9) to match with straight trough (8), and inward flange (9) is placed in straight trough (8) It is interior and can the sliding in the straight trough (8), screw rod (7) with boom (1) through being threadedly coupled, equipped with being placed in gear (6) front side on boom (1) Torsional spring (10), one end of torsional spring (10) connect with boom (1), and the other end of torsional spring (10) is connect with gear (6)；Equipped with being placed in below boom (1) and horizontally disposed multiple support frames (11) on the boom (1), support frame (11) with Sliding block (4) corresponds, and the left end of support frame (11) is hinged with boom (1) through longitudinally disposed shaft (12), support frame (11) left end is equipped with opening towards left straight trough (13)；Equipped with being placed in above shaft (12) and can slide vertically on boom (1) Fixture block (14), the upper end face contact of the lower end surface of fixture block (14) and support frame (11), equipped with being placed on fixture block (14) on boom (1) The vertically arranged spring (15) of side, one end of spring (15) are contacted with boom (1), the other end of spring (15) and fixture block (14) Contact；Equipped with the safety rope (16) being placed in above support frame (11) on the support frame (11), one end of safety rope (16) is vertical It is penetrated in boom (1) upwards and the rear end through screw rod (7) is extruded on boom (1).
- The active protecting device 2. arm of derrick fracture according to claim 1 is fallen, which is characterized in that wirerope (3) Right end is connected with boom (1) drawn spring (17).
- The active protecting device 3. arm of derrick fracture according to claim 1 is fallen, which is characterized in that shaft covers on (12) Equipped with torque spring (18), one end of torque spring (18) is connected with support frame (11), the other end of torque spring (18) with Boom (1) is connected, and constitutes the twisting force of support frame (11) through torque spring (18) and generates the structure rotated clockwise.
- The active protecting device 4. arm of derrick fracture according to any one of claims 1 to 3 is fallen, which is characterized in that each Fixture block (14) corresponding to shaft (12) has at least one.
- The active protecting device 5. arm of derrick fracture according to any one of claims 1 to 3 is fallen, which is characterized in that fixture block (14) spring (15) corresponding to has at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861301.7A CN107555328B (en) | 2017-09-21 | 2017-09-21 | Arm of derrick is broken the active protecting device that falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861301.7A CN107555328B (en) | 2017-09-21 | 2017-09-21 | Arm of derrick is broken the active protecting device that falls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107555328A CN107555328A (en) | 2018-01-09 |
| CN107555328B true CN107555328B (en) | 2019-05-14 |
Family
ID=60982427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861301.7A Expired - Fee Related CN107555328B (en) | 2017-09-21 | 2017-09-21 | Arm of derrick is broken the active protecting device that falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107555328B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116374827B (en) * | 2023-06-05 | 2023-09-19 | 东鼎建设有限公司 | Crane boom guide mechanism for building construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097820U (en) * | 1991-04-25 | 1992-03-04 | 淮阴市建筑机械厂 | Headframe-improved tower crane |
| CN2414055Y (en) * | 1999-12-03 | 2001-01-10 | 王瑛 | Heavy load tower crane |
| CN202245814U (en) * | 2011-08-04 | 2012-05-30 | 江阴市鼎力起重机械有限公司 | Wall sleeving cantilever crane |
| CN102502435A (en) * | 2011-11-18 | 2012-06-20 | 中联重科股份有限公司 | Protection device for boom telescoping mechanism, telescopic boom and crane |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1773856C (en) * | 1990-05-11 | 1992-11-07 | Производственное объединение "Новокраматорский машиностроительный завод" | Crams cantilever jib |
-
2017
- 2017-09-21 CN CN201710861301.7A patent/CN107555328B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097820U (en) * | 1991-04-25 | 1992-03-04 | 淮阴市建筑机械厂 | Headframe-improved tower crane |
| CN2414055Y (en) * | 1999-12-03 | 2001-01-10 | 王瑛 | Heavy load tower crane |
| CN202245814U (en) * | 2011-08-04 | 2012-05-30 | 江阴市鼎力起重机械有限公司 | Wall sleeving cantilever crane |
| CN102502435A (en) * | 2011-11-18 | 2012-06-20 | 中联重科股份有限公司 | Protection device for boom telescoping mechanism, telescopic boom and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107555328A (en) | 2018-01-09 |
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| 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: 20190212 Address after: 450000 room C260, 1 tower, 96, Ruida Road, Zhengzhou high tech Industrial Development Zone, Henan Applicant after: ZHENGZHOU CHENGHE INFORMATION TECHNOLOGY Co.,Ltd. Address before: No. 4, watting East Street, watting Town, Nanyang, Henan Applicant before: Lu Chengshuai |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190416 Address after: 226000 Baidian Town Industrial Park, Haian City, Nantong City, Jiangsu Province Applicant after: JIANGSU ZISHI MACHINERY MANUFACTURE CO.,LTD. Address before: 450000 room C260, 1 tower, 96, Ruida Road, Zhengzhou high tech Industrial Development Zone, Henan Applicant before: ZHENGZHOU CHENGHE INFORMATION TECHNOLOGY Co.,Ltd. |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |