CN104229648A - Back-tilting-preventing device and hoisting equipment - Google Patents
Back-tilting-preventing device and hoisting equipment Download PDFInfo
- Publication number
- CN104229648A CN104229648A CN201310247202.1A CN201310247202A CN104229648A CN 104229648 A CN104229648 A CN 104229648A CN 201310247202 A CN201310247202 A CN 201310247202A CN 104229648 A CN104229648 A CN 104229648A
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- hypsokinesis
- connecting bore
- interior pipe
- outer tube
- bar
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Abstract
The invention discloses a back-tilting-preventing device and hoisting equipment. The back-tilting-preventing device comprises a back-tilting-preventing rod, the lower end of the back-tilting-preventing rod is hinged with a rotary table, and the upper end of the back-tilting-preventing rod is hinged with a main arm; the back-tilting-preventing rod comprises an inner pipe, an outer pipe and a connecting pin roll, a first inner pipe connecting hole and a second inner pipe connecting hole are formed in the inner pipe, and are spaced in the axial direction of the back-tilting-preventing rod, the first inner pipe connecting hole is close to the lower end of the inner pipe, and an outer pipe connecting hole is formed in the outer pipe; in a first working state, the connecting pin roll passes through the first inner pipe connecting hole and the outer pipe connecting hole; in a second working state, the connecting pin roll passes through the second inner pipe connecting hole and the outer pipe connecting hole. Therefore, the back-tilting-preventing rod of the back-tilting-preventing device has two back-tilting-preventing lengths, and the performance of the hoisting equipment can be brought into full play while the safety is ensured; meanwhile, different back-tilting-preventing devices do not need to be used for different arm rest combinations, and thus the operation efficiency is improved.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of anti-squat system and weight-lifting equipment.
Background technology
In the construction machinery and equipment such as crawler crane and dynamic compaction machinery, anti-squat system is a very important device, has an accident for preventing whole machinery from being hypsokinesis in work.
Fig. 1 is the schematic diagram of the hoisting crane of the anti-squat system with prior art.Fig. 2 is the decomposing schematic representation of anti-squat system shown in Fig. 1.As can be seen from Fig. 1 and Fig. 2, the hoisting crane of prior art comprises: principal arm arm-tie 1, mast 2, anti-hypsokinesis bar 3, principal arm 4, anti-hypsokinesis connecting rod 5 and main frame 6.In the anti-squat system of diagram hoisting crane, anti-hypsokinesis connecting rod 5 is connected on anti-hypsokinesis bar 3.Anti-hypsokinesis bar 3 only has a minimum length (anti-hypsokinesis length), namely anti-hypsokinesis bar 3 at springing by length during maximum compression.If design described minimum length according to principal arm maximum functional angle, so maximum functional angle of jib in tower auxiliary operating mode limit.And then the lifting performance affected under tower auxiliary operating mode.If minimum length according to tower auxiliary maximum functional angle design, then maximum functional angle during principal arm operating mode can exceed usable range, harm complete machine safety in utilization.If different jib combinationally uses different preventing tilting device, this causes dismounting loaded down with trivial details, affects operating efficiency.
Summary of the invention
The object of the present invention is to provide a kind of anti-squat system to overcome or at least alleviate above-mentioned defect of the prior art.
For achieving the above object, the invention provides a kind of anti-squat system, described anti-squat system comprises anti-hypsokinesis bar, and lower end and the turntable of described anti-hypsokinesis bar are hinged, upper end and principal arm hinged;
Wherein, described anti-hypsokinesis bar comprises interior pipe, outer tube and connection bearing pin,
Be provided with interior pipe first connecting bore and interior pipe second connecting bore on inner pipe, axially spaced apart at described anti-hypsokinesis bar of described interior pipe first connecting bore and interior pipe second connecting bore, and the lower end that interior pipe first connecting bore closes on described interior pipe is arranged,
Outer tube is provided with outer tube connecting bore, and the lower end that described outer tube connecting bore closes on outer tube is arranged,
At the first mode of operation, connect bearing pin through interior pipe first connecting bore and outer tube connecting bore, realize the first usable length of anti-hypsokinesis bar; At the second mode of operation, connect bearing pin through interior pipe second connecting bore and outer tube connecting bore, realize the second usable length of anti-hypsokinesis bar.
Thus anti-hypsokinesis bar of the present invention has two anti-hypsokinesis length, two anti-hypsokinesis length correspond respectively to principal arm operating mode and tower auxiliary operating mode, while guarantee safety, can give full play to the performance of weight-lifting equipment; And avoid different preventing tilting device is combinationally used for different jib, improve operating efficiency.
Preferably, described anti-squat system comprises the bearing pin locking mechanism preventing described connection bearing pin from coming off from described outer tube connecting bore and described interior pipe first connecting bore or described interior pipe second connecting bore further.
Preferably, described outer tube is fixedly installed anti-hypsokinesis bar fulcrum plate, described anti-hypsokinesis bar fulcrum plate is provided with fulcrum plate connecting bore, described anti-squat system comprises anti-hypsokinesis connecting rod further, the first end of described anti-hypsokinesis connecting rod is arranged to slide on principal arm jib along a track, under the mode of operation of described anti-squat system, the second end of described anti-hypsokinesis connecting rod by described fulcrum plate connecting bore and described anti-hypsokinesis fulcrum plate hinged.
Preferably, the second end of described anti-hypsokinesis connecting rod is provided with slotted hole, by described slotted hole and described anti-hypsokinesis fulcrum plate hinged.
Preferably, described anti-hypsokinesis bar fulcrum plate is provided with transport spacing hole further, described transport spacing hole and described fulcrum plate connecting bore axially spaced, for hinged with the slotted hole of described anti-hypsokinesis connecting rod under the travelling position of described anti-squat system, the upper end of described anti-hypsokinesis bar is more closed on by wherein said transport spacing hole than described fulcrum plate connecting bore.
Preferably, described anti-hypsokinesis bar comprises the springing axially arranged further, and described springing is positioned at the upper end of described anti-hypsokinesis bar, and when described anti-hypsokinesis bar pressurized, described springing shrinks and regulates the length of described anti-hypsokinesis bar.
The present invention also provides a kind of weight-lifting equipment, and described weight-lifting equipment comprises anti-squat system as above.
Preferably, described weight-lifting equipment is crawler crane and dynamic compaction machinery.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the hoisting crane of the anti-squat system with prior art.
Fig. 2 is the decomposing schematic representation of anti-squat system shown in Fig. 1.
Fig. 3 is the schematic diagram of the hoisting crane of the anti-squat system with one embodiment of the invention.
Fig. 4 is the schematic diagram of anti-squat system shown in Fig. 3 when being applicable to principal arm operating mode.
Fig. 5 is the schematic diagram of anti-squat system shown in Fig. 3 when being applicable to tower auxiliary operating mode.
Fig. 6 is the decomposing schematic representation of anti-squat system shown in Fig. 3.
Fig. 7 is the schematic diagram of the state of anti-squat system shown in Fig. 3 when transporting.
Reference numeral:
| 1 | Principal arm arm-tie | 31 | Interior pipe |
| 2 | Mast | 32 | Outer tube |
| 3 | Anti-hypsokinesis bar | 33 | Interior pipe first connecting bore |
| 4 | Principal arm | 34 | Interior pipe second connecting bore |
| 5 | Anti-hypsokinesis connecting rod | 35 | Connect bearing pin |
| 6 | Main frame | 71 | Fulcrum plate connecting bore |
| 7 | Anti-hypsokinesis bar fulcrum plate | 72 | Transport spacing hole |
Detailed description of the invention
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of protection of the invention and are described in detail to embodiments of the invention below in conjunction with accompanying drawing.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Comprise anti-hypsokinesis bar according to the anti-squat system of the present invention one broad embodiment, lower end and the turntable of described anti-hypsokinesis bar are hinged, upper end and principal arm hinged; Described anti-hypsokinesis bar comprises interior pipe, outer tube and connection bearing pin,
Be provided with interior pipe first connecting bore and interior pipe second connecting bore on inner pipe, axially spaced apart at described anti-hypsokinesis bar of described interior pipe first connecting bore and interior pipe second connecting bore, and the lower end that interior pipe first connecting bore closes on described interior pipe is arranged,
Outer tube is provided with outer tube connecting bore, and the lower end that described outer tube connecting bore closes on outer tube is arranged,
At the first mode of operation, connect bearing pin through interior pipe first connecting bore and outer tube connecting bore, realize the first usable length of anti-hypsokinesis bar; At the second mode of operation, connect bearing pin through interior pipe first connecting bore and outer tube connecting bore, realize the second usable length of anti-hypsokinesis bar.
Thus above-mentioned anti-hypsokinesis bar has two anti-hypsokinesis length, two anti-hypsokinesis length correspond respectively to principal arm operating mode and tower auxiliary operating mode, while guarantee safety, can give full play to the performance of weight-lifting equipment; And avoid different preventing tilting device is combinationally used for different jib, improve operating efficiency.
Fig. 3 is the schematic diagram of the hoisting crane of the anti-squat system with one embodiment of the invention.Fig. 4 is the schematic diagram of anti-squat system shown in Fig. 3 when being applicable to principal arm operating mode.Fig. 5 is the schematic diagram of anti-squat system shown in Fig. 3 when being applicable to tower auxiliary operating mode.Fig. 6 is the decomposing schematic representation of anti-squat system shown in Fig. 3.Fig. 7 is the schematic diagram of the state of anti-squat system shown in Fig. 3 when transporting.
In the illustrated embodiment, anti-squat system comprises anti-hypsokinesis bar 3, anti-hypsokinesis connecting rod 5, anti-hypsokinesis fulcrum plate 7.
Lower end and the turntable of anti-hypsokinesis bar 3 are hinged, upper end and principal arm hinged.Anti-hypsokinesis bar 3 comprises interior pipe 31, outer tube 32 and is connected bearing pin 35, and interior pipe 31 connects by being connected bearing pin 35 with outer tube 32.
Interior pipe 31 is provided with interior pipe first connecting bore 33 and interior pipe second connecting bore 34, axially spaced apart at described anti-hypsokinesis bar of described interior pipe first connecting bore and interior pipe second connecting bore, and the lower end that interior pipe first connecting bore 33 closes on described interior pipe is arranged.Outer tube 32 is provided with outer tube connecting bore, and the lower end that described outer tube connecting bore closes on outer tube is arranged.
In the first mode of operation (shown in Fig. 5 state), connect bearing pin 35 through interior pipe first connecting bore 33 and outer tube connecting bore, realize the first usable length of anti-hypsokinesis bar.Thus, achieve anti-hypsokinesis bar optimum length when tower arm works, and ensure that the safe spacing of maximum functional angle.
In the second mode of operation (shown in Fig. 4 state), connect bearing pin 35 through interior pipe second connecting bore 34 and outer tube connecting bore, realize the second usable length of anti-hypsokinesis bar.Thus, achieve anti-hypsokinesis bar optimum length when principal arm works, and ensure that the safe spacing of maximum functional angle.Thus, provide the anti-hypsokinesis length that two different, achieve the safe spacing to different jib maximum functional angle, improve complete machine safety in utilization.
Advantageously, described anti-squat system comprises the bearing pin locking mechanism preventing described connection bearing pin from coming off from described outer tube connecting bore and described interior pipe first connecting bore or described interior pipe second connecting bore further.Bearing pin locking mechanism can adopt any suitable structure, such as, the mode of the steel wire passed from bearing pin two ends can be adopted to realize locking, or realizes locking by the C shape collar be inserted in end part of pin shaft groove.
Anti-hypsokinesis bar fulcrum plate 7 is welded on the outer wall of outer tube 32.Anti-hypsokinesis bar fulcrum plate 7 is provided with fulcrum plate connecting bore 71 and transport spacing hole 72, and the upper end of described anti-hypsokinesis bar is more closed on by the transport spacing hole 72 of anti-hypsokinesis bar fulcrum plate 7 than fulcrum plate connecting bore 71.
The first end of anti-hypsokinesis connecting rod 5 is arranged to slide on principal arm jib along a track.Second end of anti-hypsokinesis connecting rod 5 is provided with slotted hole, by described slotted hole and described fulcrum plate connecting bore 71 or to transport spacing hole 72 hinged.Under the mode of operation of described anti-squat system, the second end of described anti-hypsokinesis connecting rod by described fulcrum plate connecting bore and described anti-hypsokinesis fulcrum plate hinged.Under the travelling position of described anti-squat system, described slotted hole is hinged with transport spacing hole 72.
Be understandable that, described anti-hypsokinesis bar may further include the springing axially arranged, and described springing is positioned at the upper end of described anti-hypsokinesis bar, and when described anti-hypsokinesis bar pressurized, described springing shrinks and regulates the length of described anti-hypsokinesis bar.Such as, arrange Compress Spring at the upper end of outer tube, when anti-hypsokinesis bar pressurized, Compress Spring shrinks, thus the entire length of described anti-hypsokinesis bar reduces.When described Compress Spring is compressed into maximum position, prevent the further hypsokinesis of jib.
Above-mentioned anti-squat system may be used for the weight-lifting equipment of such as crawler crane and dynamic compaction machinery.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. an anti-squat system, comprises anti-hypsokinesis bar, and lower end and the turntable of described anti-hypsokinesis bar are hinged, upper end and principal arm hinged;
It is characterized in that,
Described anti-hypsokinesis bar comprises interior pipe, outer tube and connection bearing pin,
Be provided with interior pipe first connecting bore and interior pipe second connecting bore on inner pipe, axially spaced apart at described anti-hypsokinesis bar of described interior pipe first connecting bore and interior pipe second connecting bore, and the lower end that interior pipe first connecting bore closes on described interior pipe is arranged,
Outer tube is provided with outer tube connecting bore, and the lower end that described outer tube connecting bore closes on outer tube is arranged,
At the first mode of operation, connect bearing pin through interior pipe first connecting bore and outer tube connecting bore, realize the first usable length of anti-hypsokinesis bar; At the second mode of operation, connect bearing pin through interior pipe second connecting bore and outer tube connecting bore, realize the second usable length of anti-hypsokinesis bar.
2. anti-squat system as claimed in claim 1, is characterized in that, comprises the bearing pin locking mechanism preventing described connection bearing pin from coming off from described outer tube connecting bore and described interior pipe first connecting bore or described interior pipe second connecting bore further.
3. anti-squat system as claimed in claim 1, is characterized in that,
Described outer tube is fixedly installed anti-hypsokinesis bar fulcrum plate, described anti-hypsokinesis bar fulcrum plate is provided with fulcrum plate connecting bore,
Described anti-squat system comprises anti-hypsokinesis connecting rod further, the first end of described anti-hypsokinesis connecting rod is arranged to slide on principal arm jib along a track, under the mode of operation of described anti-squat system, the second end of described anti-hypsokinesis connecting rod by described fulcrum plate connecting bore and described anti-hypsokinesis fulcrum plate hinged.
4. anti-squat system as claimed in claim 3, it is characterized in that, the second end of described anti-hypsokinesis connecting rod is provided with slotted hole, by described slotted hole and described anti-hypsokinesis fulcrum plate hinged.
5. anti-squat system as claimed in claim 4, it is characterized in that, described anti-hypsokinesis bar fulcrum plate is provided with transport spacing hole further, described transport spacing hole and described fulcrum plate connecting bore axially spaced, for hinged with the slotted hole of described anti-hypsokinesis connecting rod under the travelling position of described anti-squat system, the upper end of described anti-hypsokinesis bar is more closed on by wherein said transport spacing hole than described fulcrum plate connecting bore.
6. the anti-squat system according to any one of claim 1-4, it is characterized in that, described anti-hypsokinesis bar comprises the springing axially arranged further, described springing is positioned at the upper end of described anti-hypsokinesis bar, when described anti-hypsokinesis bar pressurized, described springing shrinks and regulates the length of described anti-hypsokinesis bar.
7. a weight-lifting equipment, is characterized in that, comprises the anti-squat system according to any one of claim 1-6.
8. weight-lifting equipment as claimed in claim 7, it is characterized in that, described weight-lifting equipment is crawler crane and dynamic compaction machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247202.1A CN104229648A (en) | 2013-06-20 | 2013-06-20 | Back-tilting-preventing device and hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247202.1A CN104229648A (en) | 2013-06-20 | 2013-06-20 | Back-tilting-preventing device and hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104229648A true CN104229648A (en) | 2014-12-24 |
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ID=52218681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310247202.1A Pending CN104229648A (en) | 2013-06-20 | 2013-06-20 | Back-tilting-preventing device and hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104229648A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027989A (en) * | 2019-05-21 | 2019-07-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane |
| CN115490173A (en) * | 2022-09-13 | 2022-12-20 | 徐州建机工程机械有限公司 | Integral double-slide-rail movable arm tower crane anti-back-tilting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173595U (en) * | 1984-04-24 | 1985-11-16 | 日本車輌製造株式会社 | Backstop for preventing crane boom from tilting |
| JP2007290782A (en) * | 2006-04-20 | 2007-11-08 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Tower crane |
| CN201343398Y (en) * | 2009-01-22 | 2009-11-11 | 上海三一科技有限公司 | Back tipping prevention device for main arm of crane |
| JP2011213426A (en) * | 2010-03-31 | 2011-10-27 | Kobelco Cranes Co Ltd | Crane |
| JP2012101924A (en) * | 2010-11-11 | 2012-05-31 | Ihi Construction Machinery Ltd | Boom backstop device |
| JP2012232822A (en) * | 2011-04-28 | 2012-11-29 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Crane |
| CN103848362A (en) * | 2012-12-03 | 2014-06-11 | 北汽福田汽车股份有限公司 | Variable amplitude pulley block structure for crane and crane with same |
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2013
- 2013-06-20 CN CN201310247202.1A patent/CN104229648A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173595U (en) * | 1984-04-24 | 1985-11-16 | 日本車輌製造株式会社 | Backstop for preventing crane boom from tilting |
| JP2007290782A (en) * | 2006-04-20 | 2007-11-08 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Tower crane |
| CN201343398Y (en) * | 2009-01-22 | 2009-11-11 | 上海三一科技有限公司 | Back tipping prevention device for main arm of crane |
| JP2011213426A (en) * | 2010-03-31 | 2011-10-27 | Kobelco Cranes Co Ltd | Crane |
| JP2012101924A (en) * | 2010-11-11 | 2012-05-31 | Ihi Construction Machinery Ltd | Boom backstop device |
| JP2012232822A (en) * | 2011-04-28 | 2012-11-29 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Crane |
| CN103848362A (en) * | 2012-12-03 | 2014-06-11 | 北汽福田汽车股份有限公司 | Variable amplitude pulley block structure for crane and crane with same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027989A (en) * | 2019-05-21 | 2019-07-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane |
| CN115490173A (en) * | 2022-09-13 | 2022-12-20 | 徐州建机工程机械有限公司 | Integral double-slide-rail movable arm tower crane anti-back-tilting device |
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Application publication date: 20141224 |
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