CN202729642U - A-frame used for engineering machinery - Google Patents
A-frame used for engineering machinery Download PDFInfo
- Publication number
- CN202729642U CN202729642U CN 201220356879 CN201220356879U CN202729642U CN 202729642 U CN202729642 U CN 202729642U CN 201220356879 CN201220356879 CN 201220356879 CN 201220356879 U CN201220356879 U CN 201220356879U CN 202729642 U CN202729642 U CN 202729642U
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- pull bar
- shears
- equipment
- construction machinery
- utility
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Abstract
The utility model discloses an A-frame used for engineering machinery, which comprises a first pull rod (1) and a second pull rod (2), wherein the top ends of the first pull rod (1) and the second pull rod (2) are articulated with variable amplitude fixed pulleys (4); the lower ends of the first pull rod (1) and the second pull rod (2) are articulated on a rotary table; and the height of the variable amplitude fixed pulleys (4) from the top end to the ground is smaller than the height threshold of the engineering machinery in the transportation state. The A-frame is always in one state during the working and transportation processes, so that the assembly and disassembly and other auxiliary devices are not needed, the structure is simple and practical, the time and cost for assembly and disassembly are saved, and the operating safety and the degree of humanization are improved.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of Shears for construction machinery and equipment.
Background technology
Medium and small tonnage construction machinery and equipment in the market, the luffing range of cantilever support of crawler crane and crawler type dynamic compaction machinery for example, employing arranges Shears at the construction machinery and equipment turntable, be used for installing the fixed pulley of luffing assembly pulley, the supporting jib, and luffing power reached on the turntable, Shears design whether reasonable will have direct impact to luffing mechanism, jib and arm.And most Shearves can not satisfy work and the requirement of transportation two states simultaneously.
Figure 1A and 1B are the constitution diagram of work and the transportation of existing a kind of Shears, and wherein, Figure 1A is mode of operation, and Figure 1B is travelling position.During work, Shears is sling with whipline, or with self lifting body Shears is pushed up control position, connect arm-tie behind the Shears, Shears is fixed on the turntable.During transportation, for reducing height, need arm-tie behind the dismounting Shears, with whipline or self lifting body Shears is kept flat on the turntable.Whole process is complicated, trouble.In the two states switching process, need whipline or the jacking apparatus of self just can finish.With the whipline installation Shears of slinging, in the transportation unloading process, need to increase a crane equipment and relevant installation personnel, additionally increase cost of dismantling, reduce installation effectiveness.With self lifting body installation Shears, increase the parts such as corresponding auxiliary mechanism, jacking cylinder when needing design, not only complex structure has also improved design cost greatly, has reduced reliability, the safety of product.
Summary of the invention
In view of this, a technical matters to be solved in the utility model provides a kind of Shears for construction machinery and equipment, and Shears remains a kind of state in work and transportation, need not dismounting.
A kind of Shears for construction machinery and equipment, described construction machinery and equipment comprises: turntable 3, jib 5 and luffing range of cantilever support device; Described luffing range of cantilever support device comprises luffing fixed pulley 4; Described Shears comprises: the first pull bar 1 and the second pull bar 2; The top of the top of described the first pull bar 1 and described the second pull bar 2 is hinged with described luffing fixed pulley 4, and the lower end of the lower end of described the first pull bar 1 and the second pull bar 2 all is hinged on the turntable; Wherein, the top of described luffing fixed pulley 4 is to the height on the ground height threshold less than described construction machinery and equipment travelling position.
According to an embodiment of Shears of the present utility model, further, between described the first pull bar 1 and the second pull bar 2, be horizontally disposed with pipe link 6, captive joint with the second pull bar 2 with described the first pull bar 1 respectively in the two ends of described pipe link.
According to an embodiment of Shears of the present utility model, further, the two ends of described pipe link 6 are threaded with described the first pull bar 1 and the second pull bar 2 respectively.
According to an embodiment of Shears of the present utility model, further, the number of described pipe link 6 is 2.
According to an embodiment of Shears of the present utility model, further, described construction machinery and equipment is specially: crawler crane or crawler type dynamic compaction machinery.
Shears of the present utility model remains a kind of state in work and transportation, need not dismounting, need not other auxiliary device, and is simple and practical, saved disassembly and assembly time and dismounting cost, improves processing safety and hommization degree.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A and 1B are the scheme drawing of a kind of Shears in the prior art;
Fig. 2 A and 2B are the scheme drawing according to an embodiment of the Shears for construction machinery and equipment of the present utility model;
Fig. 3 is the scheme drawing according to another embodiment of the Shears for construction machinery and equipment of the present utility model.
The specific embodiment
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model wherein is described.Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment the technical solution of the utility model is carried out many-sided description.
Fig. 2 A and 2B are the scheme drawing according to an embodiment of the Shears for construction machinery and equipment of the present utility model.Fig. 2 A is the travelling position of Shears, and Fig. 2 B is the scheme drawing (having omitted some parts of construction machinery and equipment, the architectural feature of outstanding Shears) of the mode of operation of Shears.Construction machinery and equipment comprises: turntable 3, jib 5 and luffing range of cantilever support device.The luffing range of cantilever support device comprises luffing fixed pulley 4.Shears comprises: the first pull bar 1 and the second pull bar 2(also can be called front tension bar and back stay); The top of the top of the first pull bar 1 and the second pull bar 2 is hinged with the lower end of luffing fixed pulley 4, the first pull bars 1 and the lower end of the second pull bar 2 all is hinged on the turntable.The top of luffing fixed pulley 4 is to the height on the ground height threshold less than the construction machinery and equipment travelling position.
The height threshold of construction machinery and equipment travelling position refers to the relevant regulations according to country, or the limit for height of construction machinery and equipment in transportation of the concrete Ferry Status regulation of road, or the highest height of construction machinery and equipment.Construction machinery and equipment is specially: crawler crane or crawler type dynamic compaction machinery etc.Crawler crane adopts the truss-type cantilever crane structure hoisting crane of caterpillar band traveling chassis.The crawler type dynamic compaction machinery adopts caterpillar chassis, makes hammer ram in the certain altitude free fall, plays the mechanical equipment of compacting foundation.
Shears of the present utility model need not dismantled rear arm-tie, not need Shears is set level when transportation, just can satisfy the shipping height requirement.Shears is when work, and standing state just can satisfy job requirement.
Fig. 3 is the scheme drawing according to another embodiment of the Shears for construction machinery and equipment of the present utility model.Being horizontally disposed with pipe link 6 between the first pull bar 1 and the second pull bar 2, captives joint with the second pull bar 2 with the first pull bar 1 respectively in the two ends of pipe link, can adopt welding or the mode such as be threaded.According to an embodiment, the two ends of pipe link 6 are threaded with the first pull bar 1 and the second pull bar 2 respectively.The number of pipe link 6 is 1, more than 2 or 2.Engineering staff can pass through optimum level face included angle A, simultaneously in the substantially constant situation of bondsman's cabinet frame and luffing device included angle B, arrange through reasonable computation analysis, size, optimize geometric relationship between Shears and rear arm-tie, finally reach the purpose that reduces the Shears height H, can realize that Shears can satisfy the function of work and the requirement of transportation two states simultaneously with a kind of state.
Shears of the present utility model just has certain stability in the situation that does not need other auxiliary devices.Compare with traditional Shears and to have characteristics simple in structure, convenient and practical.No matter be in work or the travelling position after arm-tie is installed first behind the Shears, all need not dismantle, shortened the set-up time greatly, improved installation effectiveness.And version is simple, novel, and the greatly low design cost that reduced is avoided again dismounting and installation in the transition transportation simultaneously, improves packaging efficiency, reaches the object of the invention, and is convenient feasible, is easy to promote.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or with the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.
Claims (5)
1. Shears that is used for construction machinery and equipment, described construction machinery and equipment comprises: turntable (3), jib (5) and luffing range of cantilever support device; Described luffing range of cantilever support device comprises luffing fixed pulley (4); It is characterized in that:
Described Shears comprises: the first pull bar (1) and the second pull bar (2); The top of the top of described the first pull bar (1) and described the second pull bar (2) is hinged with described luffing fixed pulley (4), and the lower end of the lower end of described the first pull bar (1) and the second pull bar (2) all is hinged on the turntable;
Wherein, the top of described luffing fixed pulley (4) is to the height on the ground height threshold less than described construction machinery and equipment travelling position.
2. Shears as claimed in claim 1 is characterized in that:
Being horizontally disposed with pipe link (6) between described the first pull bar (1) and the second pull bar (2), captives joint with the second pull bar (2) with described the first pull bar (1) respectively in the two ends of described pipe link.
3. Shears as claimed in claim 2 is characterized in that:
The two ends of described pipe link (6) are threaded with described the first pull bar (1) and the second pull bar (2) respectively.
4. Shears as claimed in claim 3 is characterized in that:
The number of described pipe link (6) is 2.
5. such as the described Shears of claim 1 to 4 any one, it is characterized in that:
Described construction machinery and equipment is specially: crawler crane or crawler type dynamic compaction machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356879 CN202729642U (en) | 2012-07-23 | 2012-07-23 | A-frame used for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356879 CN202729642U (en) | 2012-07-23 | 2012-07-23 | A-frame used for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729642U true CN202729642U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220356879 Expired - Lifetime CN202729642U (en) | 2012-07-23 | 2012-07-23 | A-frame used for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321202A (en) * | 2013-07-02 | 2013-09-25 | 徐工集团工程机械股份有限公司 | Lifting device, dynamic compactor and boom raising method of dynamic compactor |
-
2012
- 2012-07-23 CN CN 201220356879 patent/CN202729642U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321202A (en) * | 2013-07-02 | 2013-09-25 | 徐工集团工程机械股份有限公司 | Lifting device, dynamic compactor and boom raising method of dynamic compactor |
| CN103321202B (en) * | 2013-07-02 | 2016-04-13 | 徐工集团工程机械股份有限公司 | An arm method of boom hoisting, dynamic compaction machinery and dynamic compaction machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |