CN202152260U - Engineering plant and propeller strut structure thereof - Google Patents
Engineering plant and propeller strut structure thereof Download PDFInfo
- Publication number
- CN202152260U CN202152260U CN2011202227007U CN201120222700U CN202152260U CN 202152260 U CN202152260 U CN 202152260U CN 2011202227007 U CN2011202227007 U CN 2011202227007U CN 201120222700 U CN201120222700 U CN 201120222700U CN 202152260 U CN202152260 U CN 202152260U
- Authority
- CN
- China
- Prior art keywords
- shears
- supporting leg
- turntable
- oil cylinder
- telescopic oil
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model discloses a propeller strut structure used for engineering plant. The propeller strut structure comprises a propeller strut (1) and an upper rotary table (2), and further comprises a folding mechanism (3), wherein the upper rotary table (2) is connected with a plant body of engineering plant; the propeller strut (1) is hinged onto the upper rotary table (2); and the folding mechanism (3) drives the propeller strut (1) to fold and unfold relative to a truss arm of the engineering plant and is arranged between the propeller strut (1) and the upper rotary table (2). Through the propeller strut structure, the unfolding and the folding of the propeller strut and the truss arm can be conveniently realized, auxiliary equipment is not needed during the operation process, and the joint operation of many working personnel is not needed, so that the working efficiency of the engineering plant is improved, and the labor intensity of the working personnel is reduced. The utility model further provides the engineering plant comprising the truss arm and the propeller strut structure; and the bottom end on the outer side of the truss arm is hinged to the upper rotary table of the propeller strut structure. The engineering plant has corresponding technical effects.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of Shears structure that is used for construction machinery and equipment.In addition, the utility model also relates to a kind of construction machinery and equipment that comprises above-mentioned Shears structure.
Background technology
Along with the development of technical field of engineering machinery especially car hosit and the further refinement of customizations, the hoisting crane of various special constructions arises at the historic moment, and has also used the Shears structure on the mobile automobile hoisting crane gradually.The Shears structure is the bracing or strutting arrangement that adopts in the construction machinery and equipment; It is installed on the car body top of construction machinery and equipment; Mainly be used for installing fixed pulley, the supporting arm of luffing assembly pulley and luffing power reached on the turntable; Whether the Shears structure design gets reasonable, will direct influence be arranged to luffing mechanism, turntable and arm.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of Shears structure in the prior art; The defective that exists in the work below in conjunction with this Shears structure of Brief Description Of Drawings.
As shown in Figure 1; In the prior art Shears structure generally include triangle supporting leg 1 ' with crossbeam 2 '; Triangle supporting leg 1 ' supporting leg 11 in comprising ' and outer supporting leg 12 '; Interior supporting leg 11 ' with outer supporting leg 12 ' the bottom all hinged with the turntable of car hosit car body, and interior supporting leg 11 ' and outer supporting leg 12 ' the top be articulated in crossbeam 2 ', crossbeam 2 ' on the luffing assembly pulley is installed the fixed pulley group.Along with construction machinery and equipment especially car hosit develops towards the large-tonnage direction, the integral structure size constantly increases, because Shears is installed on the fuselage; Excessive height when construction machinery and equipment goes; Surpassed national road laws and regulations requirement, therefore, usually when transportation, needed the jointed shaft dismounting of the outer supporting leg 12 of Shears ' (or interior supporting leg 11 ') with turntable; Then with interior supporting leg 11 ' with outer supporting leg 12 ' folds flat to turntable; So that meet national road regulation, again Shears installed during work, so that carry out hoisting operation.
Because the oad of Shears has fold mechanism more greatly and not; Shears structure lodging and the process that is erected in turntable all need be used auxiliary weight-lifting equipment in the prior art; Being equipped with several staff's co-operate again could accomplish; Cause entire work process labour intensity very big, and work efficiency is very low.
In view of this; Demand urgently existing Shears structure being optimized design to above-mentioned technical matters; It has fold mechanism, and its truss arm with respect to construction machinery and equipment can be folded and open, and need not auxiliary weight-lifting equipment; Also need not several staff's manual operationss can realize, thereby improves work efficiency, the reduction labour intensity of construction machinery and equipment.
The utility model content
The technical matters that the utility model will solve is that a kind of Shears structure that is used for construction machinery and equipment is provided; It has fold mechanism; Can need not just to accomplish folding of Shears and truss arm and open by auxiliary weight-lifting equipment and several operating personal; Thereby improved the work efficiency of construction machinery and equipment, greatly reduced labour intensity.Another technical matters that the utility model will solve is that a kind of construction machinery and equipment that comprises above-mentioned Shears structure is provided.
For solving the problems of the technologies described above; The utility model provides a kind of Shears structure that is used for construction machinery and equipment; Comprise turntable and the Shears with interior supporting leg, outer supporting leg, said upward turntable is connected in the body of said construction machinery and equipment, and said Shears is articulated in the said turntable of going up; Comprise that also the said Shears of driving folds and open fold mechanism with respect to the truss arm of said construction machinery and equipment, said fold mechanism is located at said Shears and said going up between the turntable.
Preferably, said fold mechanism comprises telescopic oil cylinder, and the fixed end of said telescopic oil cylinder is articulated in the said turntable of going up, and its movable end is articulated in said Shears.
Preferably, the fixed end of said telescopic oil cylinder is located between said interior supporting leg and the said outer supporting leg, and its movable end is located on the said interior supporting leg of said Shears.
Preferably, said fold mechanism comprises that also an end is articulated in said interior supporting leg, and the other end is articulated in the connecting rod of the movable end of said telescopic oil cylinder, and said telescopic oil cylinder is hinged through said connecting rod and said Shears.
Preferably, said fold mechanism also comprises pole; One end of said pole is articulated in said turntable, the movable end of its other end and said telescopic oil cylinder, the said rod hinge connection gone up.
Preferably, said in supporting leg captive joint through a plurality of cross bars with said outer supporting leg, and the bottom of the bottom of said outer supporting leg, said interior supporting leg removably be articulated in said on turntable.
Preferably, comprise 2 said fold mechanisms, 2 said fold mechanisms are arranged at the both sides, front and back of said Shears symmetrically.
The Shears structure that the utility model provided, it comprises that the driving person cabinet frame folds and open fold mechanism with respect to the truss arm of construction machinery and equipment, fold mechanism is located between Shears and the last turntable.
In the concrete scheme, above-mentioned fold mechanism can be specially telescopic oil cylinder, and the fixed end of this telescopic oil cylinder is articulated in turntable, and its movable end is articulated in Shears.Adopt this structure, above-mentioned car hosit finishes at hoisting operation, when the truss arm was fallen back preparation transportation; Driving telescopic oil cylinder stretches out its movable end; Can drive Shears and rotate around the hinge of its bottom and last turntable, along with the piston rod of telescopic oil cylinder constantly increases, final Shears is the lodging state; Promptly place, thereby guarantee that the car load height is no more than national regulation with the truss arm of car hosit is folding; When car hosit is prepared hoisting operation; Only needing to drive telescopic oil cylinder constantly withdraws its piston rod; Can drive the hinge backward rotation of Shears around its bottom and last turntable, final Shears becomes upright state by the lodging state, promptly is with the truss arm and opens setting.
This shows; Adopt above-mentioned hydraulically powered telescopic oil cylinder, can conveniently realize Shears and truss arm open and folding, the weight-lifting equipment that the whole service process need not to assist; Also need not several staff's co-operate; And open with folding process steadily, safe and reliable, this has improved the work efficiency of construction machinery and equipment greatly, and has reduced staff's labour intensity.
The utility model also provides a kind of construction machinery and equipment, comprises the truss arm; Also comprise aforesaid Shears structure, the outer lower end of said truss arm is articulated in the last turntable of said Shears structure.
Preferably, said construction machinery and equipment is specially car hosit.
Because above-mentioned Shears structure has above-mentioned technique effect, therefore, comprises that the construction machinery and equipment of this Shears structure also should have the corresponding techniques effect, repeats no more at this.
Description of drawings
Fig. 1 is the structural representation of a kind of Shears structure in the prior art;
Fig. 2 provides the structural representation of a kind of specific embodiment of Shears structure for the utility model;
Fig. 3 is the structural representation of the truss arm of Shears and construction machinery and equipment among Fig. 2 when folding;
Fig. 4 is the fundamental diagram of Shears structure among Fig. 2;
Fig. 5 is the structural representation of a kind of specific embodiment of construction machinery and equipment that the utility model provides.
Wherein, Reference numeral among Fig. 1 and the corresponding relation between the component names are: 1 ' triangle supporting leg; 11 ' interior supporting leg; 12 ' outer supporting leg; 2 ' crossbeam;
Reference numeral and the corresponding relation between the component names among Fig. 2 to Fig. 5 are: 1 Shears; Turntable on 2; 3 fold mechanisms; 4 truss arms; Supporting leg in 11; 12 outer supporting legs; 31 telescopic oil cylinders; 32 connecting rods; 33 poles.
The specific embodiment
The core of the utility model is that a kind of Shears structure that is used for construction machinery and equipment is provided; It has fold mechanism; Can need not just to accomplish folding of Shears and truss arm and open by auxiliary weight-lifting equipment and several operating personal; Thereby improved the work efficiency of construction machinery and equipment, greatly reduced labour intensity.Another core of the utility model is that a kind of construction machinery and equipment that comprises above-mentioned Shears structure is provided.
In order to make those skilled in the art understand the technical scheme of the utility model better, be example below with the car hosit, in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Please refer to Fig. 2 and Fig. 3, Fig. 2 provides the structural representation of a kind of specific embodiment of Shears structure for the utility model; Fig. 3 is the structural representation of the truss arm of Shears and construction machinery and equipment among Fig. 2 when folding.
In a kind of specific embodiment; As shown in Figures 2 and 3, the Shears structure that the utility model provided comprises Shears 1, goes up turntable 2 and fold mechanism 3, and Shears 1 is the base portion of Shears structure; The fixed pulley group that is used for installation work machinery, supporting leg 11 and outer supporting leg 12 in it comprises; Last turntable 2 is links of Shears 1 and construction machinery and equipment body, and it is connected in the construction machinery and equipment body, and Shears 1 is articulated in turntable 2; Fold mechanism 3 is driving person cabinet frame 1 truss arm 4 folding and open parts with respect to construction machinery and equipment, and it is located between Shears 1 and the last turntable 2.
In the concrete scheme, above-mentioned fold mechanism 3 can be specially telescopic oil cylinder 31, and the fixed end of this telescopic oil cylinder 31 is articulated in turntable 2, and its movable end is articulated in Shears 1.Adopt this structure, above-mentioned car hosit finishes at hoisting operation, when truss arm 4 was fallen back preparation transportation; Driving telescopic oil cylinder 31 stretches out its movable end; Can drive Shears 1 and rotate around the hinge of its bottom and last turntable 2, along with the piston rod of telescopic oil cylinder 31 constantly increases, final Shears 1 is the lodging state; Promptly the truss arm 4 with car hosit folds placement, thereby guarantees that the car load height is no more than national regulation; When car hosit is prepared hoisting operation; Only needing to drive telescopic oil cylinder 31 constantly withdraws its piston rod; Can drive the hinge backward rotation of Shears 1 around its bottom and last turntable 2, final Shears 1 becomes upright state by the lodging state, promptly is with truss arm 4 and opens setting.
This shows; Adopt above-mentioned hydraulically powered telescopic oil cylinder 31, can conveniently realize Shears 1 and truss arm 4 open and folding, the weight-lifting equipment that the whole service process need not to assist; Also need not several staff's co-operate; And open with folding process steadily, safe and reliable, this has improved the work efficiency of construction machinery and equipment greatly, and has reduced staff's labour intensity.
Need to prove that the fold mechanism 3 of above-mentioned Shears structure is not limited to the version of telescopic oil cylinder 31, for example can also be other structures such as telescopic cylinder; Above-mentioned fold mechanism 3 also is not limited to only comprise telescopic oil cylinder 31, can also comprise the structure of other optimizations; In fact, make Shears 1 can fold the Shears structure with open fold mechanism 3 simply and easily with respect to truss arm 4 every comprising, all should work as the protection domain that belongs to the utility model.
The specific constructive form of above-mentioned fold mechanism 3 can also further be set.
In the another kind of specific embodiment, as shown in Figures 2 and 3, the fixed end of above-mentioned telescopic oil cylinder 31 can be located between the interior supporting leg 11 and outer supporting leg 12 of Shears 1, and its movable end can be located on the interior supporting leg 11 of Shears 1.Be arranged on this position; In the process that telescopic oil cylinder 31 elongates or shortens; More easily thrust is passed to Shears 1, rotate around its hinge thereby drive Shears 1, with respect to the fold mechanism 3 that telescopic oil cylinder 31 two ends is arranged on other positions; Its operational process is more steady, has further increased the working stability of Shears structure.Certainly; The end positions of above-mentioned telescopic oil cylinder 31 is not limited in above-mentioned position; Since the piston rod of telescopic oil cylinder 31 stretch out approaching the length direction of direction perpendicular to Shears 1 interior supporting leg 11; The moment that produces is big more, but this direction can change along with the rotation of Shears 1, thus the user can be provided with according to actual needs telescopic oil cylinder 31 two ends in the horizontal direction, the particular location on the vertical direction.
Need to prove; The noun of locality that occurs among this paper " outward " refers to by the junction of Shears 1 and truss arm 4 direction to external diffusion; " outside " of Shears 1 refers to the left side of the Shears 1 in the accompanying drawing 2, and " outer supporting leg 12 " refers to the left branch leg in the accompanying drawing 2; The noun of locality " interior " refer to by around point to the direction of the junction of Shears 1 and truss arm 4, " inboard " of Shears 1 refers to the right side of the Shears 1 in the accompanying drawing 2, " interior supporting leg 11 " refers to the right supporting leg in the accompanying drawing 2; Should be appreciated that these nouns of locality are that benchmark is set up with the accompanying drawing in the specification sheets, their appearance should not influence the protection domain of the utility model.
Further in the scheme, the fold mechanism 3 of above-mentioned Shears structure can also comprise connecting rod 32, and these connecting rod 32 ends are articulated in Shears 1, and the other end is articulated in the connecting rod 32 of Shears 1 movable end, and telescopic oil cylinder 31 is hinged with Shears 1 through this connecting rod 32.
Adopt connecting rod 32 to connect the version of Shears 1 and telescopic oil cylinder 31; In folding process; When driving telescopic oil cylinder 31 stretches out its piston rod; Elder generation's drivening rod 32 rotates around itself and Shears 1 hinge-point, again by connecting rod 32 pulling Shearves 1 around its hinge-point rotation with last turntable 2, thus the motion realization through telescopic oil cylinder 31 piston rods Shears 1 motor-driven fold and open.This opening with folding process operated steadily, and can shorten the length of telescopic oil cylinder 31 to a certain extent, saves productive costs.
Further, as shown in Figures 2 and 3, above-mentioned fold mechanism 3 can also comprise pole 33, and an end of pole 33 is articulated in turntable 2, and movable end, the connecting rod 32 of the other end and telescopic oil cylinder 31 are hinged.Please refer to Fig. 4, Fig. 4 is the fundamental diagram of Shears structure among Fig. 2; Adopt this structure, as shown in Figure 4, A represents the hinge-point of telescopic oil cylinder 31 and last turntable 2 among the figure; B represents the hinge-point of pole 33 and last turntable 2; C represents the movable end of telescopic oil cylinder 31, and D represents the hinge-point of connecting rod 32 and Shears 1, the hinged inside point of O representative cabinet frame 1 and last turntable 2; Above-mentioned telescopic oil cylinder AC, connecting rod CD, pole BC and Shears OD have constituted four-bar linkage among this figure; In folding process, when driving telescopic oil cylinder AC stretched out its piston rod, first drivening rod CD rotated around the D point; Driving pole BC simultaneously rotates around the B point; And then connecting rod CD pulling Shears OD rotates around O point, when connecting rod CD two ends during to C ', D ' position, are promptly realized Shears OD folding with respect to truss arm 4 from C, D rotated position; Above-mentioned Shears 1 is opposite with above-mentioned folding process with the process of opening of truss arm 4, repeats no more here.
Because four-bar linkage has motion steadily, but bearing load is big, and the less advantage of wearing and tearing; After adopting above-mentioned pole 33; Pole 33 is being played certain restraining function with in telescopic oil cylinder 31 and connecting rod 32 rotating process, has guaranteed the folding of Shears 1 and has opened in the process motion continuously, after a certain proportion of setting of bar progress row to above-mentioned four-bar mechanism; Can reach the fold mechanism 3 of optimization; Satisfying the demand while that Shears 1 folds, can also make the combination size of telescopic oil cylinder 31 the most reasonable, effectively utilized limited design space.
The specific constructive form of Shears 1 in the above-mentioned Shears structure can also further be set.
In the another kind of specific embodiment, above-mentioned Shears 1 can be one-piece construction, and the interior supporting leg 11 of Shears 1 is captiveed joint through a plurality of cross bars with outer supporting leg 12, and the bottom of the bottom of outer supporting leg 12, interior supporting leg 11 removably is articulated in turntable 2.
Adopt the Shears 1 of this structure, the interior supporting leg 11 and the outer supporting leg 12 of captive joint are " people " font, play identical supporting role with Shears in the prior art 1; When construction machinery and equipment transports, only need the jointed shaft of outer supporting leg 12 bottoms is pulled down, drive telescopic oil cylinder 31 then, Shears 1 is rotated around the jointed shaft of interior supporting leg 11 bottoms, can realize the folding of Shears 1 and open; Supporting leg 11 and outer supporting leg 12 are articulated in the version of crossbeam in comparing in the prior art, folding and open saved in the process with interior supporting leg 11 and outside supporting leg 12 step of closing up, further saved control step.Certainly, the Shears 1 in the above-mentioned Shears structure is not limited to this structure, and supporting leg 11 is articulated in the conventional structure of outer supporting leg 12 in can also adopting.
In the another kind of specific embodiment, above-mentioned Shears structure can comprise that 3,2 fold mechanisms 3 of 2 fold mechanisms are arranged at the both sides, front and back of Shears 1 symmetrically.Because inevitably there is certain included angle in telescopic oil cylinder 31 with plane, Shears 1 place; Therefore; Folding and open and produce certain tilting force in the process inevitably at Shears 1, after Shears 1 forward and backward bilateral symmetry is provided with fold mechanism 3, can eliminate the inclination thrust that fold mechanism 3 is brought; Make steady, the stress equalization of each component movement in the whole service process, further strengthened the working stability of Shears structure.Certainly, above-mentioned Shears structure is not limited to adopt the version of 2 fold mechanisms 3.
Need to prove; In the accompanying drawing 2 that the noun of locality among this paper " preceding " refers to perpendicular to paper; And by the direction that penetrates paper, the noun of locality " back " refers in the accompanying drawing 2 perpendicular to paper, and injects the direction of paper; Describe similarly with the above-mentioned noun of locality, their appearance should not influence the protection domain of the utility model.
Please refer to Fig. 5, Fig. 5 is the structural representation of a kind of specific embodiment of construction machinery and equipment that the utility model provides.
As shown in Figure 5, the utility model also provides a kind of construction machinery and equipment, comprises truss arm 4; Also comprise aforesaid Shears structure, the outer lower end of truss arm 4 is articulated in the last turntable 2 of Shears structure.
Because above-mentioned Shears structure has above-mentioned technique effect, therefore, comprises that the construction machinery and equipment of this Shears structure also should have the corresponding techniques effect, repeats no more at this.
Particularly, above-mentioned construction machinery and equipment can be car hosit.Need to prove; This paper only is the technique effect that example has been explained above-mentioned Shears structure with the car hosit, and in fact, above-mentioned construction machinery and equipment is not limited to car hosit; Can also be weight-lifting equipments such as crawler crane, tower crane, and transfer crane; Certain above-mentioned Shears structure can also be applicable to the Other Engineering machinery outside the weight-lifting equipment, for example rotary drilling rig etc.
More than a kind of construction machinery and equipment and Shears structure thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. Shears structure that is used for construction machinery and equipment comprises turntable (2) and has the Shears (1) of interior supporting leg (11), outer supporting leg (12), saidly goes up the body that turntable (2) is connected in said construction machinery and equipment, and said Shears (1) is articulated in the said turntable (2) of going up; It is characterized in that comprise that also the said Shears of driving (1) folds and open fold mechanism (3) with respect to the truss arm (4) of said construction machinery and equipment, said fold mechanism (3) is located at said Shears (1) and said going up between the turntable (2).
2. Shears structure according to claim 1 is characterized in that, said fold mechanism (3) comprises telescopic oil cylinder (31), and the fixed end of said telescopic oil cylinder (31) is articulated in the said turntable (2) of going up, and its movable end is articulated in said Shears (1).
3. Shears structure according to claim 2 is characterized in that, the fixed end of said telescopic oil cylinder (31) is located between said interior supporting leg (11) and the said outer supporting leg (12), and its movable end is located on the interior supporting leg (11) of said Shears (1).
4. Shears structure according to claim 3; It is characterized in that; Said fold mechanism (3) comprises that also an end is articulated in said interior supporting leg (11); The other end is articulated in the connecting rod (32) of the movable end of said telescopic oil cylinder (31), and said telescopic oil cylinder (31) is hinged through said connecting rod (32) and said Shears (1).
5. Shears structure according to claim 4 is characterized in that, said fold mechanism (3) also comprises pole (33); One end of said pole (33) is articulated in the said turntable (2) of going up, and its other end and the movable end of said telescopic oil cylinder (31), said connecting rod (32) are hinged.
6. according to each described Shears structure of claim 1-5; It is characterized in that; Supporting leg (11) is captiveed joint through a plurality of cross bars with said outer supporting leg (12) in said, and the bottom of the bottom of said outer supporting leg (12), said interior supporting leg (11) removably be articulated in said on turntable (2).
7. according to each described Shears structure of claim 1-5, it is characterized in that comprise 2 said fold mechanisms (3), 2 said fold mechanisms (3) are arranged at the both sides, front and back of said Shears (1) symmetrically.
8. a construction machinery and equipment comprises truss arm (4); It is characterized in that also comprise each described Shears structure like claim 1-7, the outer lower end of said truss arm (4) is articulated in the last turntable (2) of said Shears structure.
9. Shears structure according to claim 8 is characterized in that, is specially car hosit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202227007U CN202152260U (en) | 2011-06-28 | 2011-06-28 | Engineering plant and propeller strut structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202227007U CN202152260U (en) | 2011-06-28 | 2011-06-28 | Engineering plant and propeller strut structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152260U true CN202152260U (en) | 2012-02-29 |
Family
ID=45692764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202227007U Expired - Fee Related CN202152260U (en) | 2011-06-28 | 2011-06-28 | Engineering plant and propeller strut structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152260U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407918A (en) * | 2012-12-30 | 2013-11-27 | 上海庞源机械租赁股份有限公司 | Stable device capable of preventing cargo boom instability under sudden unloading conditions and assembling method thereof |
| CN104210969A (en) * | 2013-06-03 | 2014-12-17 | 徐工集团工程机械股份有限公司 | Propeller strut and heavy tapping machine |
| CN106477467A (en) * | 2016-01-07 | 2017-03-08 | 徐工集团工程机械股份有限公司 | Wedge shape frame and dynamic compaction machinery |
-
2011
- 2011-06-28 CN CN2011202227007U patent/CN202152260U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407918A (en) * | 2012-12-30 | 2013-11-27 | 上海庞源机械租赁股份有限公司 | Stable device capable of preventing cargo boom instability under sudden unloading conditions and assembling method thereof |
| CN103407918B (en) * | 2012-12-30 | 2016-03-23 | 上海庞源机械租赁股份有限公司 | The securing device of crane arm unstability and assembling mode thereof under prevention Condition of Sudden Unloading condition |
| CN104210969A (en) * | 2013-06-03 | 2014-12-17 | 徐工集团工程机械股份有限公司 | Propeller strut and heavy tapping machine |
| CN104210969B (en) * | 2013-06-03 | 2016-01-13 | 徐工集团工程机械股份有限公司 | Shears and dynamic compaction machinery |
| CN106477467A (en) * | 2016-01-07 | 2017-03-08 | 徐工集团工程机械股份有限公司 | Wedge shape frame and dynamic compaction machinery |
| CN106477467B (en) * | 2016-01-07 | 2018-07-17 | 徐工集团工程机械股份有限公司 | Wedge-shaped frame and dynamic compaction machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101985917B (en) | Splitting installation and construction method of marine wind generating set and equipment thereof | |
| CN202832293U (en) | Well repair operation pipe rod conveyor | |
| CN110525533B (en) | Large-span anti-subsidence polar region scientific investigation vehicle | |
| CN203373664U (en) | Foldable rear supporting leg of tunnel-through bridge girder erection machine | |
| CN202152260U (en) | Engineering plant and propeller strut structure thereof | |
| CN103633576A (en) | Hidden bracket | |
| CN204371091U (en) | For suspension cat ladder and the engineering machinery of work machine operation platform | |
| CN202766157U (en) | Crane and fly jib mounting device thereof | |
| CN102431910B (en) | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof | |
| EP2055362A1 (en) | Upright support structure for a fairground attraction, in particular a ferris wheel | |
| CN110171768A (en) | A kind of derrick tower and the crossing construction safeguard containing it | |
| KR20120131896A (en) | Vertical and horizontal type Hydro-crane | |
| CN204922762U (en) | Improved generation street lamp convenient to it is folding | |
| CN208883399U (en) | A kind of large-scale steel pipe mobile device | |
| CN116136179A (en) | Disconnect-type support platform | |
| CN112922546B (en) | Power soft slurry umbrella | |
| CN205523862U (en) | Nuclear power structure module turning device | |
| CN210111479U (en) | Automatic crossing frame | |
| CN204452834U (en) | Self-unloading oceangoing ship outrigger foldable belt conveyor | |
| CN210238544U (en) | Swing type integral cofferdam moving device | |
| CN208749374U (en) | A kind of excavation stand hangs translation mechanism | |
| CN108092214B (en) | Turnover pile top cable bridge fixed on civil engineering platform | |
| CN208739968U (en) | Collapsible prismatic spray boom spraying frame | |
| CN202415027U (en) | Aerial automatic folding mechanism of boom of triple-knuckle tower crane | |
| CN110526141A (en) | A kind of crane arm apparatus for turning of type fast erecting tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20140628 |
|
| EXPY | Termination of patent right or utility model |