CN104495652A - Crawler crane - Google Patents
Crawler crane Download PDFInfo
- Publication number
- CN104495652A CN104495652A CN201410796994.2A CN201410796994A CN104495652A CN 104495652 A CN104495652 A CN 104495652A CN 201410796994 A CN201410796994 A CN 201410796994A CN 104495652 A CN104495652 A CN 104495652A
- Authority
- CN
- China
- Prior art keywords
- crawler crane
- platform
- mast
- amplitude mast
- jib
- 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.)
- Pending
Links
Classifications
-
- 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
- B66C23/60—Derricks
-
- 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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
-
- 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
- B66C23/88—Safety gear
- B66C23/92—Snubbers or dashpots for preventing backwards swinging of jibs, e.g. in the event of cable or tackle breakage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a crawler crane comprising a pull plate, a steel wire rope, a platform, an amplitude variation winch, an amplitude variation mast, an arm support and a supporting rod, wherein the bottom end of the arm support is connected with the front part of the platform and the top end of the arm support is connected with one end of the pull plate; one end of the steel wire rope is connected with the tail of the platform and the other end of the steel wire rope is connected with the amplitude variation winch after bypassing the other end of the pull plate; one end of the amplitude variation mast is connected with the front part of the platform and the other end of the amplitude variation mast is connected with the other end of the pull plate; one end of the support rod is in swinging connection with the amplitude variation mast and the other end of the support rod is a free end and is used for connecting the front part of the platform when the crawler crane is in a conveying state; and the support rod is positioned above the amplitude variation mast when the crawler crane is in a working state, and the supporting rod is positioned below the amplitude variation mast when the crawler crane is in the conveying state. The crawler crane can be subjected to bi-directional easy convenient switching between the conveying state and the working state.
Description
Technical field
The present invention relates to crane field, particularly a kind of crawler crane.
Background technology
At present, the luffing function of crawler crane mainly contains following two kinds of modes: amplitude mast formula as shown in Figure 1, and this kind of mode assembly pulley is arranged between mast 10 ' and platform 12 '; And A type frame formula as shown in Figure 2, this kind of mode assembly pulley is arranged between mast 20 ' and jib.During transport, these two kinds of modes are all mast is placed on platform rear portion (the platform rear portion in Fig. 1 refers to the side of platform 12 ' away from operator's compartment 13 ', platform rear portion in Fig. 2 refers to the side of platform 22 ' away from operator's compartment 23 '), and all need auxiliary cylinder to realize the switching of mast from travelling position to mode of operation, namely in Fig. 1, auxiliary cylinder 11 ' switches to mode of operation to realize mast 10 ', and in Fig. 2, auxiliary cylinder 21 ' switches to mode of operation to realize mast 20 '; And each auxiliary cylinder is when the mast of correspondence is packed up, all can produce back pressure, affect the conversion from mode of operation to travelling position.
Therefore how realizing that crawler crane is two-way between travelling position and mode of operation to be switched simply and easily, is technical matters urgently to be resolved hurrily.
Summary of the invention
In view of this, the present invention proposes a kind of crawler crane, can realize that crawler crane is two-way between travelling position and mode of operation to be switched simply and easily.
Particularly, the crawler crane that the invention provides, comprising: arm-tie, steel rope, platform, luffing elevator, amplitude mast, jib and strut bar; The bottom of described jib connects the front portion of described platform, and top connects one end of described arm-tie; One end of described steel rope connects the afterbody of described platform, and after walking around the other end of described arm-tie, the other end of described steel rope connects described luffing elevator; One end of described amplitude mast connects the front portion of described platform, and the other end connects the other end of described arm-tie; One end of described strut bar swings with described amplitude mast and is connected, the other end is the free end for being connected with described platform front portion when described crawler crane is in travelling position, described strut bar is positioned at when the mode of operation of described crawler crane on described amplitude mast, is positioned at the below of described amplitude mast when described crawler crane is in travelling position.
Further, described crawler crane also comprises the baffle plate for limiting described strut bar angle when described crawler crane is in travelling position and between described amplitude mast, and described baffle plate is connected with described amplitude mast.
Further, the other end of described amplitude mast is provided with stay bearing plate, and the end of described stay bearing plate is provided with for described platform when described crawler crane is in travelling position and the opening of described stay bearing plate clamping.
Further, described opening is tapered.
Further, described platform is provided with riser, and described riser is when described crawler crane is in travelling position and described opening clamping.
Further, described amplitude mast is provided with the rotor wheel for leading to described steel rope.
Further, the quantity of described rotor wheel is mated with the multiplying power of described steel rope.
Further, described crawler crane also comprises anti-hypsokinesis bar, and one end of described anti-hypsokinesis bar is connected with described platform, the other end and described jib sliding block joint.
Further, the other end of described anti-hypsokinesis bar is provided with guide wheel, and described jib is provided with slide rail, described guide wheel and described slide rail bearing fit.
Further, described amplitude mast is provided with mount pad, described strut bar and described baffle plate are installed on described mount pad.
Crawler crane provided by the invention is after pulling down crawler belt, operation luffing elevator puts steel rope, jib can cw luffing under gravity, amplitude mast cw luffing, until the head of jib drops down onto ground, continues to put rope, amplitude mast continues to fall under Gravitative Loads, strut bar is positioned at the below of amplitude mast under the effect of deadweight, is connected to realize supporting role with platform when falling to a certain degree, convenient transport; Under travelling position, being connected to realize supporting by strut bar with platform at crawler crane, saving for supporting the auxiliary cylinder of amplitude mast in existing crawler crane, cost-saving; Meanwhile, owing to eliminating auxiliary cylinder, realize supporting role by strut bar, when switching to mode of operation by travelling position, back pressure can not be produced or other are interfered, thus realize that crawler crane is two-way between travelling position and mode of operation to be switched simply and easily.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of existing a kind of crawler crane;
Fig. 2 is the structural representation of existing another kind of crawler crane;
Fig. 3 is the structural representation of the crawler crane that the embodiment of the present invention provides;
Fig. 4 is the schematic diagram of structure shown in Fig. 3 when travelling position;
Fig. 5 is the birds-eye view of amplitude mast in Fig. 3;
Fig. 6 is the structural representation of strut bar in Fig. 3;
Fig. 7 is the schematic diagram that in Fig. 3, strut bar is connected with platform and amplitude mast.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 3-Fig. 7 shows the structural representation of the crawler crane that the embodiment of the present invention provides; As shown in Fig. 3-Fig. 7, this crawler crane comprises: arm-tie 1, steel rope 2, platform 3, luffing elevator 4, amplitude mast 6, jib 7 and strut bar 9; The front portion (this front portion refers to the position closing on operator's compartment) of bottom (with the bearing pin) connecting platform 3 of jib 7, top (with bearing pin) connects one end of arm-tie 1, jib 7 can be provided with arm-tie groove (not marking in figure); The afterbody (this front portion refers to the position away from operator's compartment) of one end connecting platform 3 of steel rope 2, after walking around arm-tie 1, the other end connects luffing elevator 4; The front portion of one end connecting platform 3 of amplitude mast 6, the other end (with bearing pin) connects the other end of arm-tie 1; One end of strut bar 9 swings with amplitude mast 6 and is connected, the other end is the free end for being connected with platform 3 front portion when crawler crane is in travelling position, strut bar 9 is positioned on amplitude mast 6 when the mode of operation of crawler crane, is positioned at the below of amplitude mast 6 when crawler crane is in travelling position.Particularly, the bearing pin at the connecting portion place of the other end of amplitude mast 6 and the other end of arm-tie 1 can also be equipped with mast assembly pulley 12, this mast assembly pulley 12 is connected by the platform assembly pulley 8 of steel rope 2 with platform 3 afterbody.
In above-mentioned embodiment, when the mode of operation shown in Fig. 3, after pulling down crawler belt, operation luffing elevator 4 puts steel rope 2, jib 7 meeting cw luffing under gravity, amplitude mast 6 cw luffing, until the head of jib 7 drops down onto ground, continues to put rope, amplitude mast 6 continues to fall under Gravitative Loads, strut bar 9 is positioned at the below of amplitude mast 6 under the effect of deadweight, is connected to realize supporting role with platform 3 when falling to a certain degree, convenient transport, being connected with platform 3 to realize supporting under travelling position at crawler crane by strut bar 9, saving for supporting the auxiliary cylinder of amplitude mast in existing crawler crane, cost-saving, be connected to realize supporting with the front portion of platform 3 by strut bar 9 simultaneously, the transportation mode of the preposition placement of amplitude mast 6 can be realized, length due to amplitude mast 6 generally can not exceed the length (as shown in Figure 4) of jib 7, therefore the transportation lengths of whole crawler crane is the length of platform 3 and the length sum of jib 7 in the present embodiment, and in existing crawler crane by rearmounted for amplitude mast 6 placement time, length due to amplitude mast 6 is generally greater than the length of platform 3, therefore integral transportation length is approximately the length of amplitude mast 6 and the length sum of jib 7, therefore, the transportation mode of the preposition placement of amplitude mast 6 can reduce transportation lengths.
Preferably, crawler crane also comprises the baffle plate 17 for limiting strut bar 9 angle when crawler crane is in travelling position and between amplitude mast 6, and baffle plate 17 is connected with amplitude mast 6.Can carry out effectively spacing to strut bar 9 in the process fallen at strut bar 9 by the setting of baffle plate 17, and then realize strut bar 9 and be connected with platform 3, thus realize supporting role.Further preferably, the other end of amplitude mast 6 is provided with stay bearing plate 15, the end of stay bearing plate 15 is provided with for platform 3 when crawler crane is in travelling position and the opening of stay bearing plate 15 clamping, particularly, stay bearing plate 15 can be welded on the end of strut bar 9, and opening can be splayed (as shown in Figure 6).In order to implementation platform better 3 and opening clamping, platform 3 can be provided with riser 16, and riser 16 is when crawler crane is in travelling position and opening clamping (can see Fig. 7).
Preferably, amplitude mast 6 is provided with the rotor wheel 14 for leading to steel rope 2.Particularly, rotor wheel 14 can be combined by multiple wheel, the quantity of rotor wheel 14 is mated with the multiplying power of steel rope 2, touch rotor wheel 14 at steel rope 2 to play the guiding role, like this, amplitude mast 6 is when cw luffing or conter clockwise luffing, and steel rope 2 all can be led by rotor wheel 14, thus reduce the loss of steel rope, reduce costs.
Preferably, crawler crane also comprises anti-hypsokinesis bar 5, and one end of anti-hypsokinesis bar 5 is connected with platform 3, the other end and jib 7 sliding block joint.Particularly, one end of anti-hypsokinesis bar 5 can be hinged on the middle part of platform 3, and the other end of anti-hypsokinesis bar 5 is provided with guide wheel, and jib 7 is provided with slide rail 11, guide wheel and slide rail 11 bearing fit.Anti-hypsokinesis bar 5 can effectively prevent jib 7 from tumbling backward.
Preferably, amplitude mast 6 is provided with mount pad 10, strut bar 9 and baffle plate 17 are installed on mount pad 10.By mount pad 10, strut bar 9 and baffle plate 17 are installed, the impact on amplitude mast 6 body can be reduced.Particularly, can be welded with strut socket 10 in the middle and lower part of amplitude mast 6, strut bar 9 is hinged on strut socket 10, and baffle plate 17 is welded on strut socket 10, and angled with amplitude mast 6, thus strut bar 9 is made to become fixed angle with amplitude mast 6 lower plane under Gravitative Loads.
The principle of work of above-mentioned crawler crane is summarized as follows:
Mode of operation is to travelling position: shown in Fig. 3 during mode of operation, after pulling down crawler belt, and operation luffing elevator 4 puts steel rope 2, and jib 7 can cw luffing under gravity, and amplitude mast 6 cw luffing, until the head of jib 7 drops down onto ground; Continue to put rope, amplitude mast 6 continues to fall under Gravitative Loads, and arm-tie 1 is fallen in the arm-tie groove on jib 7 simultaneously; Pull down the arm-tie bearing pin at arm-tie seat 13 place, this bearing pin of the lower part of arm-tie 1 is fixed on the arm-tie seat 13 of jib 1; Pull down the upper joint part of jib 7, now again with supporting leg by platform 3 jacking to correct position, by transport vehicle reversing to platform 3 times; Continue to put rope, strut bar 9 deadweight and baffle plate 17 effect under form fixed angle with amplitude mast 6, until be supported on platform riser 16, pack up supporting leg, can transport.
Travelling position is to mode of operation: after installing crawler belt, and operation luffing elevator 4 receives steel rope 2, and the lower part to arm-tie 1 is stressed to be in line; Now be arranged on jib 7 being saved whipline on the lower joint of jib 7, then remove the bearing pin on arm-tie seat 13, by arm-tie 1 lower part together with the top pinned connection of arm-tie 1; Continue rope closing, now jib 7 continues upwards luffing, amplitude mast 6 conter clockwise luffing, now strut bar 9 at Gravitative Loads lower swing on amplitude mast 6; Continue rope closing, the guide wheel on anti-hypsokinesis bar 5 starts to act on guide rail 11, to prevent jib 7 from tumbling backward, can normally work.
The present embodiment is by amplitude mast is provided with strut bar, be connected to realize supporting by strut bar with the front portion of platform, the transportation mode of the preposition placement of amplitude mast can be realized, eliminate the hydraulic efficiency pressure systems such as auxiliary cylinder and auxiliary mechanism, reduce cost, the transportation lengths of whole crawler crane is the length of platform and the length sum of jib simultaneously, reduces transportation lengths; Guide wheel on anti-hypsokinesis bar and guide rail mating reaction, can avoid jib and amplitude mast to topple over backward; Amplitude mast top is provided with the track adjusting wheel with steel rope multiplying power number of matches, can effectively reduce the wearing and tearing of steel rope.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a crawler crane, it is characterized in that, comprising: arm-tie (1), steel rope (2), platform (3), luffing elevator (4), amplitude mast (6), jib (7) and strut bar (9); The bottom of described jib (7) connects the front portion of described platform (3), and top connects one end of described arm-tie (1); One end of described steel rope (2) connects the afterbody of described platform (3), and after walking around the other end of described arm-tie (1), the other end of described steel rope (2) connects described luffing elevator (4); One end of described amplitude mast (6) connects the front portion of described platform (3), and the other end connects the other end of described arm-tie (1); One end of described strut bar (9) swings with described amplitude mast (6) and is connected, the other end is the free end for being connected with described platform (3) front portion when described crawler crane is in travelling position, described strut bar (9) is positioned at when the mode of operation of described crawler crane on described amplitude mast (6), is positioned at the below of described amplitude mast (6) when described crawler crane is in travelling position.
2. crawler crane according to claim 1, it is characterized in that, also comprise the baffle plate (17) for limiting described strut bar (9) angle when described crawler crane is in travelling position and between described amplitude mast (6), described baffle plate (17) is connected with described amplitude mast (6).
3. crawler crane according to claim 2, it is characterized in that, the other end of described amplitude mast (6) is provided with stay bearing plate (15), and the end of described stay bearing plate (15) is provided with for described platform (3) when described crawler crane is in travelling position and the opening of described stay bearing plate (15) clamping.
4. crawler crane according to claim 3, is characterized in that, described opening is tapered.
5. crawler crane according to claim 4, is characterized in that, described platform (3) is provided with riser (16), and described riser (16) is when described crawler crane is in travelling position and described opening clamping.
6. the crawler crane according to any one of claim 1-5, is characterized in that, described amplitude mast (6) is provided with the rotor wheel (14) for leading to described steel rope (2).
7. crawler crane according to claim 6, is characterized in that, the quantity of described rotor wheel (14) is mated with the multiplying power of described steel rope (2).
8. crawler crane according to claim 6, it is characterized in that, also comprise anti-hypsokinesis bar (5), one end of described anti-hypsokinesis bar (5) is connected with described platform (3), the other end and described jib (7) sliding block joint.
9. crawler crane according to claim 8, it is characterized in that, the other end of described anti-hypsokinesis bar (5) is provided with guide wheel, and described jib (7) is provided with slide rail (11), described guide wheel and described slide rail (11) bearing fit.
10. the crawler crane according to any one of claim 2-5, it is characterized in that, described amplitude mast (6) is provided with mount pad (10), described strut bar (9) and described baffle plate (17) are installed on described mount pad (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796994.2A CN104495652A (en) | 2014-12-19 | 2014-12-19 | Crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796994.2A CN104495652A (en) | 2014-12-19 | 2014-12-19 | Crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104495652A true CN104495652A (en) | 2015-04-08 |
Family
ID=52937134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410796994.2A Pending CN104495652A (en) | 2014-12-19 | 2014-12-19 | Crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495652A (en) |
Cited By (1)
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491228A (en) * | 1982-06-30 | 1985-01-01 | Fmc Corporation | Floating sheave type pendant pay-out system for pendant supported boom |
| JPH07172773A (en) * | 1993-12-22 | 1995-07-11 | Sumitomo Constr Mach Co Ltd | Boom back backstop retainer of crane |
| CN2801750Y (en) * | 2005-04-04 | 2006-08-02 | 山东鲁能光大重型机械设备有限公司 | Rear tipping proof device of crane auxillary arm |
| 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 |
| CN202936122U (en) * | 2012-12-10 | 2013-05-15 | 上海中联重科桩工机械有限公司 | Variable-amplitude fixed pulley mechanism and hoisting machine |
| CN203402866U (en) * | 2013-07-25 | 2014-01-22 | 北汽福田汽车股份有限公司 | Anti-back-tipping device and hoist equipment for cantilever crane |
| JP2014065577A (en) * | 2012-09-26 | 2014-04-17 | Kobelco Cranes Co Ltd | Undulating member of crane |
-
2014
- 2014-12-19 CN CN201410796994.2A patent/CN104495652A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491228A (en) * | 1982-06-30 | 1985-01-01 | Fmc Corporation | Floating sheave type pendant pay-out system for pendant supported boom |
| JPH07172773A (en) * | 1993-12-22 | 1995-07-11 | Sumitomo Constr Mach Co Ltd | Boom back backstop retainer of crane |
| CN2801750Y (en) * | 2005-04-04 | 2006-08-02 | 山东鲁能光大重型机械设备有限公司 | Rear tipping proof device of crane auxillary arm |
| 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 |
| JP2014065577A (en) * | 2012-09-26 | 2014-04-17 | Kobelco Cranes Co Ltd | Undulating member of crane |
| CN202936122U (en) * | 2012-12-10 | 2013-05-15 | 上海中联重科桩工机械有限公司 | Variable-amplitude fixed pulley mechanism and hoisting machine |
| CN203402866U (en) * | 2013-07-25 | 2014-01-22 | 北汽福田汽车股份有限公司 | Anti-back-tipping device and hoist equipment for cantilever crane |
Cited By (1)
| 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 |
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Application publication date: 20150408 |