CN108249319B - A kind of automatic discharge device of suspension hook for crane and its method is released automatically - Google Patents
A kind of automatic discharge device of suspension hook for crane and its method is released automatically Download PDFInfo
- Publication number
- CN108249319B CN108249319B CN201711316275.6A CN201711316275A CN108249319B CN 108249319 B CN108249319 B CN 108249319B CN 201711316275 A CN201711316275 A CN 201711316275A CN 108249319 B CN108249319 B CN 108249319B
- Authority
- CN
- China
- Prior art keywords
- suspension hook
- boom
- crane
- winch
- telescoping boom
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/38—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with separate prime movers for crane and vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
A kind of automatic discharge device of suspension hook for crane of the invention, crane includes cantilever crane mounting base and the basic boom that is articulated in cantilever crane mounting base, roll the support pulley of connection in basic boom with telescoping boom equipped with an at least section telescoping boom and on basic boom, the telescoping boom of distalmost end apart from basic boom is equipped with hook assembly, cantilever crane mounting base is equipped with rotatable winch, winch is connected by the suspension hook of a wirerope and hook assembly, wirerope is set around on support pulley, the automatic discharge device of the suspension hook includes the first detection piece on winch and for detecting winch turnning circle, set on basic boom side and for detect the second detection piece and the control unit that is electrically connected with the first detection piece and the second detection piece respectively that support pulley rotation circle number.The present invention has that work efficiency is high, and labor intensity is low, avoids wire rope twisting and brings the effect of security risk.
Description
Technical field
The invention belongs to a kind of crane, be specifically related to a kind of automatic discharge device for crane hook and its
It is automatic to release method.
Background technique
Currently, the crane that middle-size and small-size crane manufacturing enterprise voluntarily researches and develops does not put hook design automatically, crane is put
Hook is all manual operation, first manually puts one section of suspension hook and operates repeatedly then in telescoping boom, because of the two speed difference
Greatly, it is easy to cause suspension hook to contact arm head, cause wirerope to draw deformation, it is therefore desirable to which operator carefully operates, and causes time-consuming
Long deficiency, and many times personnel operate the very long wirerope of Shi Huifang to avoid this problem, but wirerope can be beaten at this time
It twists, causes trouble, and inefficient.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind, work efficiency is high, and labor intensity is low, avoids wire rope twisting
And bring the automatic discharge device of the suspension hook for crane of security risk.
The contents of the present invention include a kind of automatic discharge device of the suspension hook for crane, and the crane includes cantilever crane peace
Dress seat and the basic boom that is articulated in the cantilever crane mounting base, be equipped in the basic boom an at least section telescoping boom with
And the support pulley of connection, the institute of the distalmost end apart from the basic boom are rolled with the telescoping boom on basic boom
Telescoping boom is stated equipped with hook assembly, the cantilever crane mounting base is equipped with rotatable winch, and the winch passes through a steel wire
Rope is connect with the suspension hook of hook assembly, and the wirerope is set around on the support pulley, characterized in that the suspension hook is put automatically
Out device include the first detection piece on the winch and for detecting winch turnning circle, be set to basic boom side and
For detect it is described support pulley rotation circle number the second detection piece and respectively with first detection piece and the second detection piece
The control unit of electrical connection；
Preferably, first detection piece includes protrusion on the winch and for incuding the raised number
Counter, second detection piece include set on it is described support pulley shaft on grating and be set to the basic boom
Side and for detecting the inductive switch of the grating number, described control unit respectively with the counter and inductive switch
Electrical connection；
Preferably, an at least section telescoping boom include sequentially connected first telescoping boom, the second telescoping boom with
And third telescoping boom, the support pulley are mounted on the basic boom and roll with first telescoping boom and connect,
It is connect by a transition pulley with the hook assembly on the third telescoping boom；
Preferably, the transition pulley is set on the arm head of the third telescoping boom, and the hook assembly includes suspension hook
Equal winding on mounting base and the lifting hook pulley being installed in the suspension hook mounting base, the lifting hook pulley and the transition pulley
There is the wirerope；
Preferably, described wirerope one end is fixed on the winch, and the other end of the wirerope is successively set around institute
Transition pulley is stated to be fixedly connected on the lifting hook pulley and with the suspension hook；
Preferably, the crane further includes automobile chassis and the pivoting support on automobile chassis, the cantilever crane peace
Seat is filled to be set on the pivoting support, the pivoting support is equipped with power control cabinet, be additionally provided in the power control cabinet power switch by
Button, cancellation alarm switch button, the automatic draw-off cock button of suspension hook and suspension hook recycle switch button, the automobile chassis automatically
On be additionally provided with the solenoid valve block with manual function；
Preferably, the cantilever crane mounting base is equipped with wireless overwinding-proof receiver, and the third telescoping boom, which is equipped with, to be used
The wireless overwinding-proof transmitter of signal in place is issued afterwards in place in reception wirerope recycling.
The contents of the present invention further include that a kind of suspension hook of crane releases method automatically,
S1: startup power supply switch button starts the automatic draw-off cock button of suspension hook after power supply connection；
S2: winch rotates under the driving of hydraulic motor and releases wirerope, and counter is on real-time detection winch
The turnning circle of protrusion simultaneously sends a signal to control unit, and control unit calculates turnning circle and show that wirerope is released
Physical length, then the physical length and the first preset length in control unit are compared, if physical length and first
Preset length is equal, then issues the control signal for stopping winch rotation and issue the starting letter that the first telescoping boom of driving stretches out
Number；
S3: the first telescoping boom drives support pulley rotation when stretching out basic boom, inductive switch is on support pulley
The turnning circle of grating is measured in real time, and the real time detection signal is sent to control unit, and control unit is to grating
Turnning circle is calculated and is obtained the practical extension elongation of the first telescoping boom, and with the first telescoping boom preset extension elongation into
Row comparison issues the motor message for stopping the first telescoping boom and issues the starting that driving winch rotates again if the two is equal
Signal；
S4: repeating S2 and S3, until wirerope stops winch and the first telescoping boom when being released to the lifting position of suspension hook
Movement；
Preferably, a kind of suspension hook of crane releases method automatically, characterized in that in S4 step, the suspension hook is located at
When lifting by crane position, suspension hook is manually pressed again and recycles switch button automatically, so that switch resets, stop the releasing to wirerope.
The invention has the advantages that by winch be equipped with for detect winch turnning circle the first detection piece,
Set on basic boom side and for detect support pulley rotation circle number the second detection piece and respectively with the first detection piece and
The control unit of second detection piece electrical connection realizes that releasing length to wirerope carries out automatically controlling, and not only improves working efficiency,
The labor intensity of reduction personnel, and avoid wire rope twisting and bring security risk, which only needs to press next key and puts hook
Key, system, which will be automatically performed, puts hook movement, does not need to observe and switch relevant operation repeatedly, needs position when suspension hook is placed into
The next key of Shi Fuwei mono-, which puts hook key, can stop putting hook, and it is convenient to operate.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention.
Attached drawing 2 is the partial structural diagram in attached drawing 1.
Attached drawing 3 is winch left view.
Attached drawing 4 is the sectional view of A-A in attached drawing 2.
1, wireless overwinding-proof receiver in the figure, 2, winch, 3, power control cabinet, 4, wirerope, 5, band manual function solenoid valve
Group, the 6, second detection piece, 61, inductive switch, 7, wireless overwinding-proof transmitter, 10, automobile chassis, the 12, first detection piece, 121,
Protrusion, 122 counters, 13, the right linear transducer of boom, 14, grating, 20, pivoting support, 21, hydraulic motor, 30, hang substantially
Arm, 31, support pulley, 311, shaft, 32, telescoping boom, 36, transition pulley, the 321, first telescoping boom, 322, second is flexible
Boom, 323, third telescoping boom, 324, arm head, 40, hook assembly, 41, suspension hook, 42, suspension hook mounting base, 43, lifting hook pulley,
50, cantilever crane mounting base, 70, the solenoid valve block with manual function, 80, power switch button, 90, cancellation alarm switch button,
100, the automatic draw-off cock button of suspension hook, 110, suspension hook recycle switch button automatically.
Specific embodiment
As shown in attached drawing 1 to attached drawing 4, the present invention includes a kind of automatic discharge device of the suspension hook for crane, the lifting
Machine includes cantilever crane mounting base 50 and the basic boom 30 that is articulated in the cantilever crane mounting base 50, is equipped with extremely in the basic boom 30
A few section telescoping boom 32 and the support pulley 31 for rolling connection with the telescoping boom 32 on basic boom 30, distance should
The telescoping boom 32 of the distalmost end of basic boom 30 is equipped with hook assembly 40, which is equipped with rotatable twist
Vehicle 2, the winch 2 are connect by a wirerope 5 with the suspension hook 41 of hook assembly 40, which is set around the support pulley 31
On, the automatic discharge device of the suspension hook include the first detection piece 12 on the winch 2 and for detecting 2 turnning circle of winch,
Set on basic 30 side of boom and for detect support 31 turnning circle of pulley the second detection piece 6 and respectively with first detect
The control unit of part 12 and the electrical connection of the second detection piece 6.By being equipped with first for detecting winch turnning circle on winch
Detection piece, set on basic boom side and for detect support pulley rotation circle number the second detection piece and respectively with first examine
The control unit for surveying part and the electrical connection of the second detection piece realizes that releasing length to wirerope carries out automatically controlling, and not only improves work
Make efficiency, reduce the labor intensity of personnel, and avoids wire rope twisting and bring security risk.
As shown in Fig. 3, which includes protrusion 121 on the winch 2 and for incuding the protrusion
The counter 122 of number, as shown in Fig. 4, second detection piece 6 include the grating in the shaft 311 of support pulley 31
14 and set on basic 30 side of boom and for detecting grating 14 times several inductive switches 61, the control unit respectively with counting
Device 122 and inductive switch 61 are electrically connected.
As shown in Fig. 2, which stretches including sequentially connected first telescoping boom 321, second
Contracting boom 322 and third telescoping boom 323, the first telescoping boom 321 is rolled by support pulley 31 and basic boom 30 to be connected
It connects, which is fixed on the basic boom 30, passes through a transition pulley 36 and suspension hook on third telescoping boom 323
Component 40 connects.First telescoping boom 321 is rolled by the support pulley 31 being set on basic boom 30 and the basic boom 31
Dynamic connection, so that the first telescoping boom 321 is under the drive cylinder (not shown) driving being set in basic boom 30 along base
The length direction of this boom 30 does stretching motion, and the quantity of the drive cylinder is 1, passes through the steel being set to inside basic boom 30
Cord group (not shown) successively connects with the first telescoping boom 321, the second telescoping boom 322 and third telescoping boom 323
It connects, the telescopic end of the drive cylinder is connect with the third telescoping boom 323, the first telescoping boom 321 and the second telescoping boom 322
Between and the second telescoping boom 322 and third telescoping boom 323 between by be equipped with and first telescoping boom 321 and base
The mutually isostructural support pulley of support pulley 31 between this boom 30 carries out rolling connection.
As shown in Fig. 2, which is set on the arm head 324 of third telescoping boom 323, and hook assembly 40 includes
Suspension hook mounting base 42 and the lifting hook pulley 43 being installed in suspension hook mounting base 42, on lifting hook pulley 43 and transition pulley 36 around
Equipped with wirerope 5, which is fixed on winch 2, and the other end of wirerope 5 is successively set around transition pulley 3 and hangs
It is fixedly connected on hook pulley 43 and with suspension hook 42.
As shown in Fig. 1, crane further includes automobile chassis 10 and the pivoting support 20 on automobile chassis 10, cantilever crane
Mounting base 50 is set on pivoting support 20, and pivoting support 20 is equipped with power control cabinet 3, is additionally provided with power switch button in power control cabinet 3
80, cancel alarm switch button 90, the automatic draw-off cock button 100 of suspension hook and suspension hook and recycle switch button 110, automobile automatically
The solenoid valve block 70 with manual function is additionally provided on chassis 10.The solenoid valve block 70 can be with the oil inlet of the hydraulic motor 21 of winch
Mouth is connected to oil outlet, is also connected to the oil inlet of the drive cylinder of driving telescoping boom movement and oil outlet, is passed through solenoid valve
It obtains electric and power loss to control to realize the stroke to hydraulic motor 21 and drive cylinder, completes to automatically control.
Cantilever crane mounting base 50 is equipped with wireless overwinding-proof receiver 1, and third telescoping boom 323 is equipped with for receiving steel wire
5 recycling of rope issues the wireless overwinding-proof transmitter 9 of signal in place afterwards in place.Pass through wireless overwinding-proof transmitter 9 and wireless anti-mistake
Volume receiver 1 recycles warning note in place to wirerope 5 to realize to the sending Yu reception of the signal in place of wirerope 5 respectively,
Facilitate operator that can obtain information at the first time, improves working efficiency, after operator sees warning note, be manually pressed by
Cancellation registration switch button 90 in power control cabinet 3 is alarmed to cancel.
The invention further relates to a kind of suspension hooks of crane to release method automatically,
S1: startup power supply switch button 80 starts the automatic draw-off cock button 100 of suspension hook after power supply connection；
S2: winch 2 rotates under the driving of hydraulic motor 21 and releases wirerope 5, and counter 122 is twisted for real-time detection
The turnning circle of protrusion 121 on vehicle 2 simultaneously sends a signal to control unit, and the single-chip microcontroller in control unit carries out turnning circle
It calculates and obtains the physical length that wirerope 5 is released, then the first preset length in the physical length and control unit is carried out
Comparison issues the control signal for stopping the rotation of winch 2 and issues driving first if physical length is equal with the first preset length
The enabling signal that telescoping boom 321 stretches out；
S3: the first telescoping boom 321 drives support pulley 31 to rotate when stretching out basic boom 30,61 pairs of inductive switch supports
The turnning circle of grating 14 on pulley 31 is measured in real time, and the real time detection signal is sent to control unit, control
Unit is calculated the turnning circle of grating and is obtained the practical extension elongation of the first telescoping boom 321, and with the first telescopic hoist
Arm is preset extension elongation and is compared, if the two is equal, issues the motor message for stopping the first telescoping boom 321 and issues driving
The enabling signal that winch 2 rotates again；
S4: repeating S2 and S3, until wirerope 5 stops winch 2 and first and stretches when being released to the lifting position of suspension hook 41
The movement of boom 321.
When the suspension hook 41 is located at lifting position, suspension hook is manually pressed again and recycles switch button 110 automatically, so that switch is multiple
Position stops the releasing to wirerope 5.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (9)
1. a kind of automatic discharge device of suspension hook for crane, the crane includes cantilever crane mounting base and is articulated with described
Basic boom in cantilever crane mounting base is equipped with an at least section telescoping boom in the basic boom, is set on basic boom and institute
The support pulley that telescoping boom rolls connection is stated, the telescoping boom of the distalmost end apart from the basic boom is equipped with suspension hook
Component, the cantilever crane mounting base are equipped with rotatable winch, and the winch is connected by the suspension hook of a wirerope and hook assembly
It connects, the wirerope is set around on the support pulley, characterized in that the automatic discharge device of suspension hook includes being set to the strand
On vehicle and it is used to detect the first detection piece of winch turnning circle, set on basic boom side and for detecting the support pulley
Second detection piece of turnning circle and the control unit being electrically connected respectively with first detection piece and the second detection piece.
2. a kind of automatic discharge device of suspension hook for crane as described in claim 1, characterized in that first detection
Part includes the protrusion on the winch and the counter for incuding the raised number, and second detection piece includes
Grating in the shaft of the support pulley and set on the basic boom side and for detecting the grating number
Inductive switch, described control unit is electrically connected with the counter and inductive switch respectively.
3. a kind of automatic discharge device of suspension hook for crane as claimed in claim 2, characterized in that an at least section
Telescoping boom includes sequentially connected first telescoping boom, the second telescoping boom and third telescoping boom, the support pulley
It is mounted on the basic boom and is rolled with first telescoping boom and connected, pass through a transition on the third telescoping boom
Pulley is connect with the hook assembly.
4. a kind of automatic discharge device of suspension hook for crane as claimed in claim 3, characterized in that the transition pulley
On the arm head of the third telescoping boom, the hook assembly includes suspension hook mounting base and is installed in suspension hook installation
The wirerope is arranged on lifting hook pulley on seat, the lifting hook pulley and the transition pulley.
5. a kind of automatic discharge device of suspension hook for crane as claimed in claim 4, characterized in that the wirerope one
End is fixed on the winch, and the other end of the wirerope is successively set around on the transition pulley and the lifting hook pulley simultaneously
It is fixedly connected with the suspension hook.
6. a kind of automatic discharge device of suspension hook for crane as claimed in claim 5, characterized in that the crane is also
Pivoting support including automobile chassis and on automobile chassis, the cantilever crane mounting base is set on the pivoting support, described
Pivoting support is equipped with power control cabinet, and it is automatic that power switch button, cancellation alarm switch button, suspension hook are additionally provided in the power control cabinet
Draw-off cock button and suspension hook recycle switch button automatically, and the solenoid valve with manual function is additionally provided on the automobile chassis
Group.
7. a kind of automatic discharge device of suspension hook for crane as claimed in claim 6, characterized in that the cantilever crane installation
Seat is equipped with wireless overwinding-proof receiver, and the third telescoping boom is equipped with to be issued to afterwards in place for receiving wirerope recycling
The wireless overwinding-proof transmitter of position signal.
8. a kind of suspension hook of crane releases method automatically, characterized in that applied to a kind of use as described in power 1-7 any one
In on the automatic discharge device of suspension hook of crane, including following steps,
S1: startup power supply switch button starts the automatic draw-off cock button of suspension hook after power supply connection；
S2: winch rotates under the driving of hydraulic motor and releases wirerope, and counter is for the protrusion on real-time detection winch
Turnning circle and send a signal to control unit, the single-chip microcontroller in control unit calculates turnning circle and obtains steel wire
The physical length that rope is released, then the physical length and the first preset length in control unit are compared, if physical length
It is equal with the first preset length, then it issues the control signal for stopping winch rotation and issues opening for driving the first telescoping boom stretching
Dynamic signal；
S3: the first telescoping boom drives support pulley rotation when stretching out basic boom, inductive switch is to the grating on support pulley
Turnning circle be measured in real time, and the real time detection signal is sent to control unit, rotation of the control unit to grating
Circle number is calculated and is obtained the practical extension elongation of the first telescoping boom, and is preset extension elongation with the first telescoping boom and carried out pair
Than issuing the motor message for stopping the first telescoping boom and issuing the enabling signal that driving winch rotates again if the two is equal；
S4: repeating S2 and S3, until wirerope stops the fortune of winch and the first telescoping boom when being released to the lifting position of suspension hook
It is dynamic.
9. a kind of suspension hook of crane as claimed in claim 8 releases method automatically, characterized in that described in S4 step
When suspension hook is located at lifting position, suspension hook is manually pressed again and recycles switch button automatically, so that switch resets, stop to wirerope
Releasing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316275.6A CN108249319B (en) | 2017-12-12 | 2017-12-12 | A kind of automatic discharge device of suspension hook for crane and its method is released automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316275.6A CN108249319B (en) | 2017-12-12 | 2017-12-12 | A kind of automatic discharge device of suspension hook for crane and its method is released automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108249319A CN108249319A (en) | 2018-07-06 |
| CN108249319B true CN108249319B (en) | 2019-08-13 |
Family
ID=62721653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316275.6A Active CN108249319B (en) | 2017-12-12 | 2017-12-12 | A kind of automatic discharge device of suspension hook for crane and its method is released automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108249319B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813970B (en) * | 2018-12-18 | 2021-05-28 | 兰州空间技术物理研究所 | Cable can extend and space electric field appearance of accurate positioning |
| CN113521615B (en) * | 2021-06-28 | 2023-05-09 | 福建侨龙应急装备股份有限公司 | Cantilever crane stop device and fire engine among fluid conveyor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5557492B2 (en) * | 2009-08-27 | 2014-07-23 | 株式会社タダノ | Jib control device in crane equipment |
| CN102701077B (en) * | 2012-06-21 | 2014-12-31 | 三一重工股份有限公司 | System and method for controlling position of lifting hook of crane, as well as crane |
| CN103145040B (en) * | 2013-03-11 | 2015-02-11 | 中联重科股份有限公司 | Crane and lifting control method, equipment and system of lifting hook of crane |
| CN203095455U (en) * | 2013-03-16 | 2013-07-31 | 湖南百特机械有限公司 | Lorry-mounted crane with boom telescoping with load |
| CN103303832A (en) * | 2013-07-03 | 2013-09-18 | 徐州重型机械有限公司 | Method for controlling expansion and contraction of suspension arm and winding and paying off of winch wire rope, system and crane |
| CN103395696B (en) * | 2013-08-12 | 2015-07-22 | 徐州重型机械有限公司 | Hoisting height control system and method of crane |
-
2017
- 2017-12-12 CN CN201711316275.6A patent/CN108249319B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108249319A (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108249319B (en) | A kind of automatic discharge device of suspension hook for crane and its method is released automatically | |
| CN108178025A (en) | A kind of weaving winding roller | |
| WO2018053944A1 (en) | Device and method for monitoring dynamic radial deformation and dynamic tension of steel rope of deep-well double-broken-line multilayer winding hoist | |
| AU2014314581B2 (en) | Device for detecting the replacement state of wear of a high-strength fibre rope during use in lifting gear | |
| CN114955881A (en) | Hoisting machinery safety detection device and detection method thereof | |
| CN104261227B (en) | A kind of elevator safety protection device | |
| CN202369310U (en) | Safety detection and control device for amplitude variation of movable arm of crane | |
| CN208327167U (en) | Novel tower crane moment safety control system | |
| CN109592493A (en) | A kind of glass fiber coiling machine structure | |
| CN203877807U (en) | Rope loosening protective device of winding type hoister | |
| CN207957600U (en) | A kind of novel metallurgical crane hoisting mechanism | |
| CN210944645U (en) | Crane lifting height limiting device | |
| CN109292632B (en) | Working method of multi-machine intelligent crane | |
| CN207451487U (en) | Setting machine hanger device | |
| CN208361734U (en) | A kind of tower crane operation monitoring system | |
| CN208439469U (en) | A kind of binding apparatus after wire rod rolled product wire drawing | |
| CN211035030U (en) | Construction machinery safety monitoring device | |
| CN206553122U (en) | Steel wire rope ordered arrangement device and oil-well drilling equipment | |
| CN204938574U (en) | A kind of weaving Winder | |
| CN117623130B (en) | Alarm device for construction hanging basket | |
| CN103663228A (en) | Clutch type electric chain type hoist with limit switch | |
| CN217854221U (en) | Gas-electric double-control telescopic rod device | |
| CN108249281B (en) | Overload protection device for lifting | |
| CN108946479A (en) | A kind of protective device of crane | |
| CN207312960U (en) | A kind of high-altitude operation vehicle lift heavy detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A hook automatic releasing device for crane and its automatic releasing method Effective date of registration: 20200911 Granted publication date: 20190813 Pledgee: Changde finance finance Company limited by guarantee Pledgor: HUNAN BAITE TRUCK CRANE Co.,Ltd. Registration number: Y2020980005941 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210521 Granted publication date: 20190813 Pledgee: Changde finance finance Company limited by guarantee Pledgor: HUNAN BAITE TRUCK CRANE Co.,Ltd. Registration number: Y2020980005941 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |