CN106495032B - Receive hook device, crane arm and lorry-mounted crane - Google Patents
Receive hook device, crane arm and lorry-mounted crane Download PDFInfo
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- CN106495032B CN106495032B CN201611226786.4A CN201611226786A CN106495032B CN 106495032 B CN106495032 B CN 106495032B CN 201611226786 A CN201611226786 A CN 201611226786A CN 106495032 B CN106495032 B CN 106495032B
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- Prior art keywords
- push rod
- oscillating motion
- motion frame
- arcuate oscillating
- hook device
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
It is more particularly to a kind of to receive hook device, crane arm and lorry-mounted crane the present invention relates to lifting technique field.The receipts hook device includes fixed mount, push rod, reseting elastic element, arcuate oscillating motion frame and swinging structure;Arcuate oscillating motion frame is rotated with fixed mount and is connected;Push rod is slidably connected with fixed mount;Reseting elastic element is arranged on push rod, and reseting elastic element is used to apply push rod the power towards the cylinder bracket in crane arm;Push rod is connected with arcuate oscillating motion frame by swinging structure.The receipts hook device that the present invention is provided, when crane arm is not full reduced, arcuate oscillating motion frame is located at higher position, and suspension hook rises to after certain altitude and abutted with arm head, it is impossible to carry out receipts hook.When crane arm is full reduced, arcuate oscillating motion frame is located at relatively low position, can carry out receipts hook, can be when crane arm is not full reduced that is, receiving hook device, and receipts hook can not be carried out by receiving hook device, and the danger for receiving hook is carried out when taking weight so as to avoid suspension hook and hang, potential safety hazard is eliminated.
Description
Technical field
It is more particularly to a kind of to receive hook device, crane arm and lorry-mounted crane the present invention relates to lifting technique field.
Background technology
Lorry-mounted crane is in a non-operative state, it usually needs artificially suspension hook is fixed, in order to avoid in transportation
Suspension hook is arbitrarily swung, and causes hoisting rope to damage, or even breaks goods in container because suspension hook is swung with car.At present, lead to
Frequently with method one be to be stuck in wood between suspension hook and arm head, after tensioning hoisting steel wire rope, by suspension hook and arm head by wood
Head clamping, limitation suspension hook is arbitrarily swung.Method two is that suspension hook is placed on the container of chassis, then is entered suspension hook with other supplies
Row is fixed.In Japan, Furukawa and many fields develop automatic receipts hook mechanism in succession.
Automatic receipts hook mechanism of the prior art includes arc and receives hook housing, and arc is received hook housing and is fixed on crane arm.Hanging
During hook is packed up from bottom to top, suspension hook touches arc and receives hook housing, and arcuately receives hook housing rotation, until suspension hook is turned to
Horizontal level, completes automatic receipts hook.
But, receipts hook mechanism of the prior art does not have under full reduced situation in crane arm, operated during use
When person carries out elevator operation, can also receipts hook be carried out to suspension hook.It is very possible on suspension hook to have hung weight and crane arm is not when having full reduced
Thing, now receives hook to suspension hook, and suspension hook easily causes to damage, causes weight to fall, will bring great potential safety hazard.
The content of the invention
Hook device, crane arm and crane are received it is an object of the invention to provide one kind, to solve of the prior art
Carry out receiving the technical problem that hook has potential safety hazard when weighing arm does not have full reduced.
The present invention provides a kind of receipts hook device, and the receipts hook device includes:Fixed mount, push rod, reseting elastic element, arc
Swing span and swinging structure;The fixed mount is used to be fixed on crane arm;The arcuate oscillating motion frame turns with the fixed mount
Dynamic connection;The push rod is slidably connected with the fixed mount;The reseting elastic element is arranged on the push rod, described to reset
Flexible member is used to apply the push rod power towards the cylinder bracket in crane arm;
The push rod is connected with the arcuate oscillating motion frame by the swinging structure, so that the push rod is swung by described
Structure drives the arcuate oscillating motion frame to swing up and down.
Further, the receipts hook device also includes connecting rod, and one end of the connecting rod is rotated with the fixed mount to be connected
Connect, the other end is rotated with the arcuate oscillating motion frame and is connected.
Further, the swinging structure includes rack and the gear being meshed with the rack;The rack is set
On the push rod, and the bearing of trend of the rack is consistent with the bearing of trend of the push rod;The gear passes through first turn
Axle is rotated with the fixed mount and is connected, and the gear is rotated with the arcuate oscillating motion frame by the second rotating shaft and is connected;It is described to push away
Bar can be by arcuate oscillating motion frame described in the gear and the rack drives to lower swing.
Further, the gear is sector gear;The sector gear is arranged on the lower section of the push rod, the sector
Gear is rotated with the arcuate oscillating motion frame and is connected.
Further, the swinging structure also includes resilient protection element;The rack is slidably connected with the push rod;Institute
The one end for stating resilient protection element is connected with the push rod, and the other end is connected with the rack.
Further, the swinging structure also includes the connector of inner hollow;Two are provided with the connector together
The through hole of axle arrangement;The push rod is located in two through holes successively;One end of the resilient protection element is pushed away with described
Bar is connected, and the other end is connected with the connector;The rack is arranged on the connector.
Further, the resilient protection element is protection spring;The protection spring is set on the push rod;It is described
One end of protection spring is connected with the push rod, and the other end is connected with the inwall of the connector.
Further, the reseting elastic element is back-moving spring;One end of the back-moving spring and the one of the push rod
End connection, the other end of the back-moving spring is connected with the fixed mount.
Further, the present invention also provides a kind of crane arm, and the crane arm includes:Arm head, arm cylinder, it is arranged on the arm
The receipts hook device described in cylinder bracket and item of the present invention in cylinder;The fixed mount is fixed on the arm head;The arm head is consolidated
It is scheduled in the arm cylinder;When the cylinder bracket is abutted with the push rod, the push rod drives institute by the swinging structure
Arcuate oscillating motion frame is stated to lower swing.
Further, the present invention also provides a kind of lorry-mounted crane, and the lorry-mounted crane includes as described in the present invention
Crane arm.
The receipts hook device that the present invention is provided, arcuate oscillating motion frame is rotatably connected on fixed mount, and push rod is slidably connected at fixation
On frame, reseting elastic element is arranged on push rod.When crane arm is not full reduced, cylinder bracket in crane arm arm cylinder not with push rod
Abut, now, arcuate oscillating motion frame is located inside arm head.When suspension hook is sling from the bottom to top, suspension hook rise to after certain altitude with
Arm head abuts and stops movement, and now, suspension hook can not carry out receipts hook.When crane arm is full reduced, the oil cylinder branch in crane arm arm cylinder
Frame is abutted with push rod, and applies active force to push rod so that push rod is relatively fixed frame and slided towards the direction away from cylinder bracket, pushes away
Bar drives arcuate oscillating motion frame to lower swing by swinging structure, while reseting elastic element compression produces elastic force, now, arc pendulum
Moving frame stretches out arm head, positioned at relatively low position.When suspension hook is from top to bottom sling, suspension hook rise to after certain altitude with arc put
Moving frame is abutted, and is rotated along the radian of arcuate oscillating motion frame, until suspension hook turns to horizontal level, completes to receive hook.Work as crane arm
Elongation is carried out in use, push rod departs from cylinder bracket, and the elastic force of reseting elastic element applies towards cylinder bracket to push rod
Power, push rod is moved to cylinder bracket direction, now, and push rod drives arcuate oscillating motion frame to be swung up by swinging structure, arc pendulum
Moving frame is located at higher position, is recycled with this.
The receipts hook device that the present invention is provided, when crane arm is not full reduced, arcuate oscillating motion frame is located on higher position, suspension hook
Rise to after certain altitude and to be abutted with arm head, it is impossible to carry out receipts hook.When crane arm is full reduced, arcuate oscillating motion frame is located at relatively low position
Put, suspension hook rises to after the first height and abutted with arcuate oscillating motion frame, and arcuately the radian of swing span turns to horizontal level, complete
Into receipts hook.The receipts hook device that the present invention is provided, can be when crane arm be full reduced, and receipts hook can not be carried out by receiving hook device, so as to avoid
Suspension hook, which is hung, carries out the danger for receiving hook when taking weight, eliminate potential safety hazard.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of receipts hook device according to embodiments of the present invention;
Fig. 2 is the structural representation that receipts hook device according to embodiments of the present invention is connected with arm cylinder, arm head;
Fig. 3 is the structural representation received when hook device carries out receipts hook according to embodiments of the present invention;
Fig. 4 is that receipts hook device according to embodiments of the present invention receives the structural representation after hook is finished.
Fig. 5 is the structural representation of receipts hook device according to embodiments of the present invention when crane arm is not full reduced.
Fig. 6 is the sectional view of receipts hook device according to embodiments of the present invention when crane arm is not full reduced.
In figure:
1- fixed mounts;2- push rods;3- arcuate oscillating motion framves;
4- reseting elastic elements;5- swinging structures;6- connecting rods;
7- arm cylinders;8- arm heads;9- suspension hooks;
10- cylinder brackets;51- racks;52- gears;
53- first rotating shafts;The rotating shafts of 54- second;55- resilient protection elements;
56- connectors.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can
To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the structural representation of receipts hook device according to embodiments of the present invention;Fig. 2 is receipts according to embodiments of the present invention
The structural representation that hook device is connected with arm cylinder, arm head;When Fig. 3 is receipts hook device progress receipts hook according to embodiments of the present invention
Structural representation;Fig. 4 is that receipts hook device according to embodiments of the present invention receives the structural representation after hook is finished;Fig. 5 is according to this
Structural representation of the receipts hook device of inventive embodiments when crane arm is not full reduced;Fig. 6 is receipts hook according to embodiments of the present invention
Sectional view of the device when crane arm is not full reduced.As shown in figs 1 to 6, the present invention provides a kind of receipts hook device, the receipts hook device
Including:Fixed mount 1, push rod 2, reseting elastic element 4, arcuate oscillating motion frame 3 and swinging structure 5;Fixed mount 1 is used to be fixed on
On weighing arm;Arcuate oscillating motion frame 3 is rotated with fixed mount 1 and is connected;Push rod 2 is slidably connected with fixed mount 1;Reseting elastic element 4 is set
On push rod 2, reseting elastic element 4 is used to apply push rod 2 power towards the cylinder bracket 10 in crane arm;Push rod 2 and arc
Shape swing span 3 is connected by swinging structure 5, so that push rod 2 drives arcuate oscillating motion frame 3 to swing up and down by swinging structure 5.
The receipts hook device that the present invention is provided, arcuate oscillating motion frame 3 is rotatably connected on fixed mount 1, and push rod 2 is slidably connected at solid
Determine on frame 1, reseting elastic element 4 is arranged on push rod 2.When crane arm is not full reduced, the cylinder bracket 10 in crane arm arm cylinder 7
Do not abutted with push rod 2, now, arcuate oscillating motion frame 3 is located inside arm head 8.When suspension hook 9 is sling from the bottom to top, suspension hook 9 rises to
Abutted after certain altitude with arm head 8 and stop movement, now, suspension hook 9 can not carry out receipts hook.When crane arm is full reduced, crane arm
Cylinder bracket 10 in arm cylinder 7 is abutted with push rod 2, and applies active force to push rod 2 so that push rod 2 is relatively fixed frame 1 towards remote
The direction of cylinder bracket 10 is slided, and push rod 2 drives arcuate oscillating motion frame 3 to lower swing by swinging structure 5, while Flexible Reset is first
The compression of part 4 produces elastic force, now, and arcuate oscillating motion frame 3 stretches out arm head 8, positioned at relatively low position.When suspension hook 9 is from top to bottom sling
When, suspension hook 9 rises to after certain altitude and abutted with arcuate oscillating motion frame 3, and is rotated along the radian of arcuate oscillating motion frame 3, until hanging
Hook 9 turns to horizontal level, completes to receive hook.When crane arm elongation progress in use, push rod 2 departs from cylinder bracket 10, reset
The elastic force of flexible member 4 applies the power towards cylinder bracket 10 to push rod 2, and push rod 2 is moved to the direction of cylinder bracket 10, now,
Push rod 2 drives arcuate oscillating motion frame 3 to be swung up by swinging structure 5, and arcuate oscillating motion frame 3 is located at higher position, is circulated with this
Use.
The receipts hook device that the present invention is provided, when crane arm is not full reduced, arcuate oscillating motion frame 3 is located at higher position, suspension hook 9
Rise to after certain altitude and to be abutted with arm head 8, it is impossible to carry out receipts hook.When crane arm is full reduced, arcuate oscillating motion frame 3 is located at relatively low
Position, suspension hook 9 rises to after the first height and abutted with arcuate oscillating motion frame 3, and arcuately the radian of swing span 3 turns to horizontal position
Put, complete to receive hook.The receipts hook device that the present invention is provided, can be when crane arm be full reduced, and receipts hook can not be carried out by receiving hook device, so that
Avoid suspension hook 9 and hang the danger that receipts hook is carried out when taking weight, eliminate potential safety hazard.
Wherein, the structure type of swinging structure 5 can be a variety of, and such as swinging structure 5 includes mounting hole and is arranged on waist
Swinging block in shape hole;Swinging block is arranged on push rod 2, and mounting hole is arranged on arcuate oscillating motion frame 3.When push rod 2 is relatively fixed
When frame 1 is slided, swinging block is moved in mounting hole, while driving arcuate oscillating motion frame 3 to be swung up or to lower swing.
Further, reseting elastic element 4 may be provided at any position of push rod 2, that is, reseting elastic element 4 can be set
Put at the middle part of push rod 2, may also be arranged on the two ends of push rod 2, as long as reseting elastic element 4 can realize reset push rod 2.
Further, fixed mount 1 can be fixed on the arm head 8 of crane arm, could be secured in the arm cylinder 7 of crane arm.
As shown in figure 1, on the basis of above-described embodiment, further, receiving hook device also includes connecting rod 6, connecting rod 6
One end and fixed mount 1 rotate and be connected, the other end is connected with the rotation of arcuate oscillating motion frame 3.
In the present embodiment, arcuate oscillating motion part is rotated with fixed mount 1 by connecting rod 6 and is connected, and is swung in arcuate oscillating motion frame 3
When, connecting rod 6 is swung simultaneously, and arcuate oscillating motion frame 3 can be made to swing more quick.
As shown in figure 1, on the basis of above-described embodiment, further, swinging structure 5 includes rack 51 and and rack
51 gears 52 being meshed;Rack 51 is arranged on push rod 2, and the bearing of trend of rack 51 is consistent with the bearing of trend of push rod 2;
Gear 52 is rotated with fixed mount 1 by first rotating shaft 53 and is connected, and gear 52 is rotated by the second rotating shaft 54 and arcuate oscillating motion frame 3
Connection;Push rod 2 can drive arcuate oscillating motion frame 3 to lower swing by gear 52 and rack 51.
In the present embodiment, when cylinder bracket 10 is abutted with push rod 2, push rod 2 is relatively fixed frame 1 to away from cylinder bracket 10
Direction slide, reseting elastic element 4 compression produce elastic force, with hour rack 51 also to away from cylinder bracket 10 direction slide,
Because gear 52 is engaged with rack 51, rack 51 is rotated with moving gear 52, and gear 52 drives arcuate oscillating motion frame 3 to lower swing, this
When can carry out receipts hook.After push rod 2 and cylinder bracket 10 depart from, the elastic force of reseting elastic element 4 promotes push rod 2 towards oil cylinder branch
The direction of frame 10 is slided, and is also slided with hour rack 51 to the direction close to cylinder bracket 10, rack 51 is with moving gear 52 to phase negative side
To rotation, gear 52 drives arcuate oscillating motion frame 3 to be swung up, and can not now carry out receipts hook.
Preferably, connecting rod 6 and fixed mount 1 rotate junction, the rotation junction of connecting rod 6 and arcuate oscillating motion frame 3,
The rotation junction for rotating junction, gear 52 and arcuate oscillating motion frame 3 of gear 52 and fixed mount 1 forms parallelogram, this
When, swing span is more stablized during swinging.
In the present embodiment, realize that push rod 2 drives the bottom on arcuate oscillating motion frame 3 by way of rack 51 and gear 52 coordinate
Dynamic, simple and compact for structure, swing span swings stable.
Wherein, reseting baffle can be set in one end of push rod 2, one end of reseting elastic element 4 is connected with baffle plate, the other end
It is connected with fixed mount 1.
As shown in figure 1, on the basis of above-described embodiment, further, gear 52 is sector gear 52;Sector gear 52
The lower section of push rod 2 is arranged on, sector gear 52 is rotated with arcuate oscillating motion frame 3 and is connected.
In the present embodiment, gear 52 is set to sector gear 52, the volume of gear 52 can be reduced, mitigates receipts hook device whole
The weight of body.
As shown in figure 1, on the basis of above-described embodiment, further, swinging structure 5 also includes resilient protection element
55;Rack 51 is slidably connected with push rod 2;One end of resilient protection element 55 is connected with push rod 2, and the other end is connected with rack 51.
In the present embodiment, when push rod 2 towards during the direction movement away from cylinder bracket 10, push rod 2 promotes resilient protection element
55, resilient protection element 55 promotes rack 51 to be moved to the direction away from cylinder bracket 10, so that rack 51 is with 52 turns of moving gear
It is dynamic.After the roller of suspension hook 9, which rises to certain altitude, to be abutted with arcuate oscillating motion frame 3, radian of the suspension hook 9 along arcuate oscillating motion frame 3
Rotate, during suspension hook 9 is rotated, suspension hook 9 applies active force to arcuate oscillating motion frame 3, and arcuate oscillating motion frame 3 passes through the band of gear 52
Carry-over bar 51 is slided with respect to push rod 2 so that resilient protection element 55 is compressed or is stretched.Because suspension hook 9 is around arcuate oscillating motion
Active force during the rotation of frame 3 between the two gradually increases, when the setting of resilient protection element 55 can make the rotation of suspension hook 9,
Because resilient protection element 55 is compressing or stretched, so that arcuate oscillating motion frame 3 can produce relative swing so that suspension hook 9
Around arcuate oscillating motion frame 3 rotate during the increased amplitude of active force between the two it is smaller, that is, active force between the two
Threshold limit value it is smaller, so as to reduce the active force between suspension hook 9 and arcuate oscillating motion frame 3, so can avoid arcuate oscillating motion frame 3 because
Stress is excessive and impaired, and the service life of hook device is received in extension.
As shown in figure 1, on the basis of above-described embodiment, further, swinging structure 5 also includes the connection of inner hollow
Part 56;Two coaxially arranged through holes are provided with connector 56;Push rod 2 is located in two through holes successively;Resilient protection member
One end of part 55 is connected with push rod 2, and the other end is connected with connector 56;Rack 51 is arranged on connector 56.
In the present embodiment, rack 51 is arranged on connector 56, connector 56 is slidably connected on push rod 2.When push rod 2
When being directed away from the direction movement of cylinder bracket 10, push rod 2 promotes protection flexible member, and protection flexible member promotes connector 56
Moved with rack 51, so as to be rotated with moving gear 52.The setting of connector 56 can make rack 51 relative to push rod 2 move when it is more steady
It is fixed.
On the basis of above-described embodiment, further, resilient protection element 55 is protection spring;Protection spring is set in
On push rod 2;One end of protection spring is connected with push rod 2, and the other end is connected with the inwall of connector 56.
In the present embodiment, protection spring be set on push rod 2, its part in connector 56, and with connector 56
Wall is connected, and partly outside connector 56, and is connected with push rod 2.When push rod 2 is moved, push rod 2 is by protecting spring to promote connection
Part 56 is moved.
Wherein, boss can be set on push rod 2, and one end of protection spring is connected with boss.
On the basis of above-described embodiment, further, reseting elastic element 4 is back-moving spring;One end of back-moving spring
It is connected with one end of push rod 2, the other end of back-moving spring is connected with fixed mount 1.
In the present embodiment, when cylinder bracket 10 promotes push rod 2 to be relatively fixed the slip of frame 1, back-moving spring is produced by compression
Elastic force.After push rod 2 and cylinder bracket 10 depart from, the elastic force of back-moving spring moves push rod 2 towards the direction of cylinder bracket 10.
As shown in Fig. 2 on the basis of above-described embodiment, further, the present invention also provides a kind of crane arm, crane arm
Including:Arm head 8, arm cylinder 7, the cylinder bracket 10 being arranged in arm cylinder 7 and the receipts hook device such as item of the present invention;Fixed mount 1 is fixed
On arm head 8;Arm head 8 is fixed in arm cylinder 7;When cylinder bracket 10 is abutted with push rod 2, push rod 2 is driven by swinging structure 5
Arcuate oscillating motion frame 3 is to lower swing.Principle ibid, will not be repeated here.
On the basis of above-described embodiment, further, the present invention also provides a kind of lorry-mounted crane, lorry-mounted crane bag
Include the crane arm such as invention.Principle ibid, will not be repeated here.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. one kind receives hook device, it is characterised in that including:Fixed mount, push rod, reseting elastic element, arcuate oscillating motion frame and pendulum
Dynamic structure;
The fixed mount is used to be fixed on crane arm;The arcuate oscillating motion frame is rotated with the fixed mount and is connected;The push rod
It is slidably connected with the fixed mount;The reseting elastic element is arranged on the push rod, the reseting elastic element be used for pair
The push rod applies the power towards the cylinder bracket in crane arm;
The push rod is connected with the arcuate oscillating motion frame by the swinging structure, so that the push rod passes through the swinging structure
The arcuate oscillating motion frame is driven to swing up and down.
2. receipts hook device according to claim 1, it is characterised in that also including connecting rod, one end of the connecting rod with
The fixed mount rotates connection, and the other end is rotated with the arcuate oscillating motion frame and is connected.
3. receipts hook device according to claim 2, it is characterised in that the swinging structure include rack and with the tooth
The gear that bar is meshed;
The rack is arranged on the push rod, and the bearing of trend of the rack is consistent with the bearing of trend of the push rod;Institute
Gear is stated to be connected with fixed mount rotation by first rotating shaft, and the gear passes through the second rotating shaft and the arcuate oscillating motion frame
Rotate connection;The push rod can be by arcuate oscillating motion frame described in the gear and the rack drives to lower swing.
4. receipts hook device according to claim 3, it is characterised in that the gear is sector gear;
The sector gear is arranged on the lower section of the push rod, and the sector gear is rotated with the arcuate oscillating motion frame and is connected.
5. receipts hook device according to claim 3, it is characterised in that the swinging structure also includes resilient protection element;
The rack is slidably connected with the push rod;One end of the resilient protection element is connected with the push rod, the other end with
The rack connection.
6. receipts hook device according to claim 5, it is characterised in that the swinging structure also includes the connection of inner hollow
Part;
Two coaxially arranged through holes are provided with the connector;The push rod is located in two through holes successively;Institute
The one end for stating resilient protection element is connected with the push rod, and the other end is connected with the connector;The rack is arranged on described
On connector.
7. receipts hook device according to claim 6, it is characterised in that the resilient protection element is protection spring;
The protection spring is set on the push rod;One end of the protection spring is connected with the push rod, the other end and institute
State the inwall connection of connector.
8. receipts hook device according to claim 1, it is characterised in that the reseting elastic element is back-moving spring;
One end of the back-moving spring is connected with one end of the push rod, and the other end of the back-moving spring connects with the fixed mount
Connect.
9. a kind of crane arm, it is characterised in that including:Arm head, arm cylinder, the cylinder bracket being arranged in the arm cylinder and such as right
It is required that the receipts hook device described in any one of 1-8;
The fixed mount is fixed on the arm head;The arm head is fixed in the arm cylinder;When the cylinder bracket with it is described
When push rod is abutted, the push rod drives the arcuate oscillating motion frame to lower swing by the swinging structure.
10. a kind of lorry-mounted crane, it is characterised in that including the crane arm as described in claim any one of 1-9.
Priority Applications (1)
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CN201611226786.4A CN106495032B (en) | 2016-12-27 | 2016-12-27 | Receive hook device, crane arm and lorry-mounted crane |
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Application Number | Priority Date | Filing Date | Title |
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CN201611226786.4A CN106495032B (en) | 2016-12-27 | 2016-12-27 | Receive hook device, crane arm and lorry-mounted crane |
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CN106495032A CN106495032A (en) | 2017-03-15 |
CN106495032B true CN106495032B (en) | 2017-11-03 |
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CN201817214U (en) * | 2010-03-04 | 2011-05-04 | 常州益利亚重工机械科技有限公司 | Automatic hook collection device of marine crane |
CN202201661U (en) * | 2011-08-09 | 2012-04-25 | 长沙桑尼重工机械有限公司 | Automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane |
CN205346679U (en) * | 2015-12-14 | 2016-06-29 | 徐州徐工随车起重机有限公司 | Lorry crane is with automatic hook offset mechcanism that receives |
CN205381882U (en) * | 2016-02-01 | 2016-07-13 | 三一帕尔菲格特种车辆装备有限公司 | Hoist and receive hook device and receive hook system thereof |
CN206288877U (en) * | 2016-12-27 | 2017-06-30 | 三一帕尔菲格特种车辆装备有限公司 | Receive hook device, crane arm and lorry-mounted crane |
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