CN203558765U - Rigid suspension and flexible suspension switching device for crane - Google Patents
Rigid suspension and flexible suspension switching device for crane Download PDFInfo
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- CN203558765U CN203558765U CN201320619216.7U CN201320619216U CN203558765U CN 203558765 U CN203558765 U CN 203558765U CN 201320619216 U CN201320619216 U CN 201320619216U CN 203558765 U CN203558765 U CN 203558765U
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- flexible suspension
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- suspension
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Abstract
The utility model provides a rigid suspension and flexible suspension switching device for a crane. The rigid suspension and flexible suspension switching device comprises a frame, a flexible suspension structure, a rigid suspension structure, a switching mechanism and a bridge rack, wherein the flexible suspension structure and the rigid suspension structure are fixed below the frame; the bridge rack is connected with the flexible suspension structure; the rigid suspension structure is fixed below the frame; the bridge frame is connected or disconnected through the switching mechanism. The rigid suspension and flexible suspension switching device for the crane can meet a requirement on the switching between a rigid suspension state and a flexible suspension state under various working conditions of the crane; furthermore, a processing technical method is simplified, the product maintenance is facilitated, and the manufacturing cost of a product is further reduced.
Description
Technical field
The utility model relates to a kind of BF device of hoisting crane, and especially a kind of hoisting crane BF is flexible, rigidity shifter.
Background technology
The suspension type of the employings such as wheel-mounted crane, lorry-mounted crane tool and excavation machinery mainly contains spring suspension, the suspension of hydraulic actuating cylinder swing span, oleo-pneumatic suspension etc., according to the operating needs of hoisting crane, hoisting crane except meet normally run at high speed and the requirement of powerful off-road capability, also to reach band carry travel, during tire lifting operating mode hoisting crane steadily, the object of trouble free service.For example, the suspension type of general wheel-mounted crane is oleo-pneumatic suspension.
When hoisting crane is when running at high speed, require its oleo-pneumatic suspension in flexible state, embody crane running stability and ride comfort, thereby improved hoisting crane complex road condition cross-country traveling ability and driver comfort; When hoisting crane carries and to travel or during tire lifting operating mode, to require its oleo-pneumatic suspension in rigid state in band, embody heavy object of crane lifting and mobile complete machine stability and safety, thereby reduce the generation of great lifting accident.So, in the urgent need to the shifter of BF rigid state and flexible state, be able to widespread use.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of BF flexibility, rigidity shifter of hoisting crane.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of rigid suspended and flexible suspension shifter of hoisting crane, comprise vehicle frame, flexible suspension structure, rigid suspended structure, switching mechanism and crane span structure, described flexible suspension structure and described switching mechanism are all fixed under described vehicle frame, described crane span structure is connected with described flexible suspension structure, described rigid suspended structure is fixed under described vehicle frame, by described switching mechanism, is connected or is disconnected crane span structure.
Further, described flexible suspension structure comprises flexible suspension seat, plate spring pin roll, steel spring, U-bolt, clamp nut, cushion block and leaf spring lower cushion block on leaf spring, described U-bolt has two, by described clamp nut, be fixed on described crane span structure respectively, in the U-shaped groove of described U-bolt, be fixed with successively from top to bottom cushion block on described leaf spring, described steel spring and described leaf spring lower cushion block, described flexible suspension seat has two, upper end is separately fixed under described crane span structure, the two ends of described steel spring are separately fixed at the lower end of described flexible suspension seat by plate spring pin roll.
Further, described rigid suspended structure is divided into rigid locking seat and rigid locking piece two parts, described rigid locking seat is fixed under described vehicle frame, and described rigid locking piece is fixed on described gantry top, on described rigid locking seat and described rigid locking piece, has corresponding lock hole.
Further, described switching mechanism comprises oil cylinder seat, oil cylinder set pin, locking bearing pin and locked cylinder, described oil cylinder seat is connected with described vehicle frame bottom surface, and described locked cylinder one end is fixed on described oil cylinder seat by described oil cylinder fixed pin shaft, and the other end is connected with described locking bearing pin.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme, this device not only meets the suspension flexible state requirement that hoisting crane normally travels at highway, also reach band carry travel, the demand of lifting operating mode suspension stiffness state, realize the superior riding stability of hoisting crane and ride comfort, also simplified technological method for processing, facilitated product maintenance, reduced especially cost of goods manifactured.
Accompanying drawing explanation
Fig. 1 is the structural perspective of the present embodiment;
Fig. 2 is the cutaway view of the present embodiment front view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present embodiment is described in detail.
As shown in Figure 1-2, the present embodiment is the rigid suspended of a kind of hoisting crane and flexible suspension shifter, this device comprises vehicle frame 3, flexible suspension structure 5, rigid suspended structure 2, switching mechanism 4 and crane span structure 1, flexible suspension structure 5 and switching mechanism 4 are all fixed on vehicle frame 3 times, crane span structure 1 is connected with flexible suspension structure 5, rigid suspended structure 2 is fixed on vehicle frame 3 times, by switching mechanism 4, is connected or is disconnected crane span structure 1.
Rigid suspended structure 2 is divided into rigid locking seat 10 and rigid locking piece 8 two parts, and rigid locking seat 10 is fixed on vehicle frame 3 times, and rigid locking piece 8 is fixed on crane span structure 1 top, on rigid locking seat 10 and rigid locking piece 8, has corresponding lock hole 9.
Switching mechanism 4 comprises oil cylinder seat 14, oil cylinder fixed pin shaft 13, locking bearing pin 11 and locked cylinder 12, and oil cylinder seat 14 is connected with vehicle frame 3 bottom surfaces, and locked cylinder 12 one end are fixed on oil cylinder seat 14 by oil cylinder fixed pin shaft 13, and the other end is connected with locking bearing pin 11.
When hoisting crane carries and to travel or during tire lifting operating mode in band, the piston rod of locked cylinder 12 stretches out and drives locking bearing pin 11 to insert in the lock hole 9 of rigid locking piece 8 through rigid locking seat 10, rigid locking seat 10 is connected with rigid locking piece 8, and crane frame 3 enters with crane span structure 1 state of being rigidly connected.
When hoisting crane is when normally running at high speed, the piston rod of locked cylinder 12 is retracted and is driven locking bearing pin 11 to extract from the lock hole 9 of rigid locking piece 8 through rigid locking seat 10, rigid locking seat 10 and rigid locking piece 8 are disconnected, and crane frame 3 enters with crane span structure 1 state of flexibly connecting.
Whether the present embodiment drives locking bearing pins 11 to plug in rigid locking piece 8 by locked cylinder 12, makes rigid locking piece 8 lock and be connected or disconnect with rigid locking seat 10, reaches described device suspension stiffness, flexibility is correctly switched.Effectively guarantee that hoisting crane hangs the demand of flexible state when normally running at high speed, embody crane running stability and ride comfort, meet band simultaneously and carry and travel or the requirement of suspension stiffness state during tire lifting operating mode, embody weight lifting, mobile complete machine stability and higher anti-tipping ability.
This device can be applied in wheel-mounted crane tool, lorry-mounted crane tool and excavation machinery.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (4)
1. the rigid suspended and flexible suspension shifter of a hoisting crane, it is characterized in that: comprise vehicle frame, flexible suspension structure, rigid suspended structure, switching mechanism and crane span structure, described flexible suspension structure and described switching mechanism are all fixed under described vehicle frame, described crane span structure is connected with described flexible suspension structure, described rigid suspended structure is fixed under described vehicle frame, by described switching mechanism, is connected or is disconnected described crane span structure.
2. the rigid suspended and flexible suspension shifter of a kind of hoisting crane according to claim 1, it is characterized in that: described flexible suspension structure comprises flexible suspension seat, plate spring pin roll, steel spring, U-bolt, clamp nut, cushion block and leaf spring lower cushion block on leaf spring, described U-bolt has two, by described clamp nut, be fixed on described crane span structure respectively, in the U-shaped groove of described U-bolt, be fixed with successively from top to bottom cushion block on described leaf spring, described steel spring and described leaf spring lower cushion block, described flexible suspension seat has two, upper end is separately fixed under described crane span structure, the two ends of described steel spring are separately fixed at the lower end of described flexible suspension seat by plate spring pin roll.
3. the rigid suspended and flexible suspension shifter of a kind of hoisting crane according to claim 1, it is characterized in that: described rigid suspended structure is divided into rigid locking seat and rigid locking piece two parts, described rigid locking seat is fixed under described vehicle frame, described rigid locking piece is fixed on described gantry top, on described rigid locking seat and described rigid locking piece, has corresponding lock hole.
4. the rigid suspended and flexible suspension shifter of a kind of hoisting crane according to claim 3, it is characterized in that: described switching mechanism comprises oil cylinder seat, oil cylinder set pin, locking bearing pin and locked cylinder, described oil cylinder seat is connected with described vehicle frame bottom surface, described locked cylinder one end is fixed on described oil cylinder seat by described oil cylinder fixed pin shaft, and the other end is connected with described locking bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619216.7U CN203558765U (en) | 2013-09-29 | 2013-09-29 | Rigid suspension and flexible suspension switching device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619216.7U CN203558765U (en) | 2013-09-29 | 2013-09-29 | Rigid suspension and flexible suspension switching device for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558765U true CN203558765U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320619216.7U Expired - Lifetime CN203558765U (en) | 2013-09-29 | 2013-09-29 | Rigid suspension and flexible suspension switching device for crane |
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| CN (1) | CN203558765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056454A (en) * | 2019-12-18 | 2020-04-24 | 中联重科股份有限公司 | Control method and system for loaded running attitude of crane |
-
2013
- 2013-09-29 CN CN201320619216.7U patent/CN203558765U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056454A (en) * | 2019-12-18 | 2020-04-24 | 中联重科股份有限公司 | Control method and system for loaded running attitude of crane |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
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| CX01 | Expiry of patent term |