CN102745604A - Crawler crane - Google Patents
Crawler crane Download PDFInfo
- Publication number
- CN102745604A CN102745604A CN2012102077174A CN201210207717A CN102745604A CN 102745604 A CN102745604 A CN 102745604A CN 2012102077174 A CN2012102077174 A CN 2012102077174A CN 201210207717 A CN201210207717 A CN 201210207717A CN 102745604 A CN102745604 A CN 102745604A
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- arm
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- crawler crane
- otic placode
- track frame
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Abstract
The invention discloses a crawler crane, which comprises a pedestal main body, two crawler belt racks parallelly mounted on the pedestal main body, a main platform connected with the pedestal main body through a slewing bearing, and a cantilever installed at a head part of the main platform, and also comprises a pulling plate, wherein when the crawler crane is in an cantilever-lifting state, a first end of the pulling plate is detachably connected with a tail part of the main platform, and a second end of the pulling plate is detachably connected with a first crawler belt rack; the first crawler belt rack is one of the two crawler belt racks, which is close to the tail part of the main platform in the cantilever-lifting state. When the crawler crane is in the cantilever-lifting state, a part of the acting force of the cantilever is transferred to the crawler belt racks through the main platform and the pulling plate, and thus the force applied to the slewing bearing is reduced; protection effect is provided for the slewing bearing and its connecting bolt; the slewing bearing is not easy to destroy; the crawler crane is suitable for the installation of a longer cantilever, and the lifting height of the crawler crane is increased. After cantilever lifting, the pulling plate can be detached, which is convenient for use.
Description
Technical field
The present invention relates to the hoisting crane field, particularly a kind of crawler crane.
Background technology
Crawler crane is a kind of track-type swing arm rotary crane that utilizes.Crawler crane has that track area is big, and crossing ability is good, comformability strong with can be with characteristics such as carrying walking.Crawler crane can cut the earth, ram several work such as soil and piling, is the major project machinery of building ground lifting operation.
Crawler crane mainly comprises track unit, swing type mechanism, gets on the bus, implement and suspension hook.Wherein, swing type mechanism is made up of pivoting support, rotary motor and rotary reducer etc., and the main flat-bed head of getting on the bus is equipped with jib, and main platform is connected on the base of track unit through pivoting support.When playing arm, pivoting support can be given base with whole force transmission of getting on the bus, and guarantees that main platform can do 360 degree revolutions.
Crawler crane is when playing arm; Pivoting support is stressed bigger, is damaged easily, in case jib surpasses the limit that pivoting support can bear at the required application force of cocked process; Will cause the damage of pivoting support and tie bolt thereof, influence normal operation or cause safety misadventure.
Summary of the invention
In view of this, the present invention proposes a kind of crawler crane, to solve problem and effective cocked more long-armed the ability of crawler crane that improves that existing crawler crane pivoting support damages easily.
The present invention provides a kind of crawler crane, comprising: base body is installed in parallel in two track frames of said base body; Through pivoting support and said base body bonded assembly master platform, said main flat-bed head is equipped with jib, it is characterized in that; Also comprise: arm-tie; When said crawler crane had been in the arm state, first end of said arm-tie was connected with said main flat-bed rear removable, and second end and first track frame of said arm-tie removably connect; Said first track frame is: when playing the arm state, in said two track frames near a track frame of said main platform afterbody.
Further, the bottom surface of said main platform afterbody is provided with first and connects otic placode, and first end of said arm-tie and said first is connected otic placode and removably connects.
Further, the side of said first track frame is provided with second and connects otic placode, or the side of said two track frames is equipped with second and connects otic placode, second end of said arm-tie be located at the said first track frame side second be connected otic placode and removably connect.
Further, the said first connection otic placode comprises: the first ears plate and the second ears plate;
Said second connects otic placode comprises: the 3rd ears plate and the 4th ears plate;
Said arm-tie comprises: first arm-tie and second arm-tie; The two ends of said first arm-tie are connected through connecting pin or tie bolt with the 3rd ears plate with the said first ears plate respectively;
The two ends of said second arm-tie are connected through connecting pin or tie bolt with the 4th ears plate with the said second ears plate respectively.
Further, said first arm-tie and second arm-tie are symmetrical set about said main flat-bed longitudinal plane of symmetry.
Further, the said first connection otic placode comprises: the first monaural plate and the second monaural plate;
Said second connects otic placode comprises: the 3rd monaural plate and the 4th monaural plate;
Said arm-tie comprises: the 3rd arm-tie, the 4th arm-tie, the 5th arm-tie and the 6th arm-tie, the two ends of said the 3rd arm-tie and said the 4th arm-tie are connected through connecting pin or tie bolt with said the 3rd monaural plate with the said first monaural plate respectively; The two ends of said the 5th arm-tie and said the 6th arm-tie are connected through connecting pin or tie bolt with said the 4th monaural plate with the said second monaural plate respectively.
Further, said the 3rd arm-tie and said the 6th arm-tie are symmetrical set about said main flat-bed longitudinal plane of symmetry; Said the 4th arm-tie and said the 5th arm-tie are symmetrical set about said main flat-bed longitudinal plane of symmetry.
Further, above-mentioned crawler crane also comprises: the cocked supporting leg of side that removably connects with second track frame of said crawler crane; Said second track frame is: when said crawler crane has been in the arm state, be arranged on the track frame of the said first track frame opposite side in said two track frames.
Further, above-mentioned crawler crane also comprises: be arranged at the arm-tie placement mechanism of said first track frame, said arm-tie placement mechanism is provided with the arm-tie fixed part.
Crawler crane provided by the invention, it is provided with the detouchable arm-tie between main platform afterbody and the track frame near main platform afterbody when playing the arm state.When playing arm; The application force that is produced by jib is delivered on the main platform through principal arm arm-tie, steel rope and pulley mechanism; This moment, main platform was connected continuously with track frame through arm-tie, thereby a part of application force can pass to track frame through arm-tie, reduced to be delivered to the power on the pivoting support thus; Protection plays a protective role to pivoting support, so the pivoting support of this crawler crane is not fragile.Thus, also make this crawler crane be suitable for installing longer jib, improve the lifting altitude of hoisting crane.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
The structural representation of the crawler crane that Fig. 1 provides for the embodiment of the invention 1;
The first connection otic placode, arm-tie are connected the schematic side view of otic placode in the crawler crane that Fig. 2 provides for the embodiment of the invention 1 with second;
Fig. 3 looks scheme drawing for the master that the first connection otic placode, arm-tie and second in first kind of mode of the embodiment of the invention 1 are connected otic placode;
Fig. 4 is the schematic side view of main platform afterbody in first kind of mode of the embodiment of the invention 1;
Fig. 5 is the schematic side view of first track frame in first kind of mode of the embodiment of the invention 1;
Fig. 6 looks scheme drawing for the master that the first connection otic placode, arm-tie and second in the second way of the embodiment of the invention 1 are connected otic placode;
The structural representation of the crawler crane that Fig. 7 provides for the embodiment of the invention 2.
Description of reference numerals:
1 base body, 21 first track frames
22 second track frames, 3 pivoting supports
4 main platforms 5 first connect otic placode
6 second connect otic placode 8 arm-ties
The 51a first ears plate 51b second ears plate
61a the 3rd ears plate 61b the 4th ears plate
81 first arm-ties, 82 second arm-ties
The 52a first monaural plate 52b second monaural plate
62a the 3rd monaural plate 62b the 4th monaural plate
83 the 3rd arm-ties 84 the 4th arm-tie
85 the 5th arm-ties 86 the 6th arm-tie
The cocked supporting leg of 9 sides
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Embodiment 1
See also Fig. 1 to Fig. 2, the crawler crane that present embodiment provides comprises:
Base body 1;
Through pivoting support 3 and base body 1 bonded assembly master platform 4, the head of main platform 4 is equipped with jib, and the afterbody bottom surface is provided with first and connects otic placode 5 (not marking among Fig. 1);
Be installed in parallel in two track frames of said base body, be specially: when playing the arm state, near first track frame 21 of main platform afterbody be arranged on second track frame 22 of first track frame, 21 opposite sides; The side of first track frame 21 is provided with second and connects otic placode 6 (not marking among Fig. 1);
Arm-tie 8, its first end is connected otic placode 5 through connecting pin and connects with first, and second end is connected otic placode 7 through connecting pin and connects with second.
The head of said main platform 4 is meant the part that is provided with operator's compartment, and this one is equipped with jib, and afterbody is meant the part relative with said head, and this one is typically provided with counterweight.
When crawler crane had begun arm, main platform 4 need return back to the arm position (main platform 4 and base body 1 perpendicular position) of rising shown in Figure 1, and this moment, main platform 4 was connected to a rigid body with track frame through arm-tie 8.The direction of arrow is the direction of transfer of jib power when playing arm among Fig. 1; Concrete: when playing arm, the application force that is produced by jib is delivered on the main platform 4 through principal arm arm-tie, steel rope and pulley mechanism, because main platform 4 links to each other with first track frame 21 through arm-tie 8; Thereby a part of application force can pass to track frame through arm-tie 8; Reduced to be delivered to the power on the pivoting support 3 thus, 3 protections play a protective role to pivoting support, so the pivoting support 3 of this crawler crane is not fragile.
Arm-tie 8 is used for giving track frame with a part of force transmission of main platform 4 in the above-mentioned crawler crane, reduces the stressed of pivoting support 3.The first connection otic placode 5 is connected otic placode 6 and is used for the two ends of arm-tie 8 are linked to each other with first track frame 21 with main platform 4 respectively with second.In the present embodiment, the two ends of arm-tie 8 are to be connected otic placode 5 with first through connecting pin to be connected otic placode 6 with second and to removably connect, and thus, after playing arm, can not influence main platform 4 and return back to other position drawing 8 to disassemble.
As preferred version, the structure that the first connection otic placode, second connects otic placode and arm-tie can adopt following dual mode:
Mode one (Fig. 3 to Fig. 5)
First connects otic placode comprises: the first ears plate 51a and the second ears plate 51b;
Second connects otic placode comprises: the 3rd ears plate 61a and the 4th ears plate 61b;
Arm-tie 8 comprises: first arm-tie 81 and second arm-tie 82, the two ends of said first arm-tie 81 are connected through connecting pin with the 3rd ears plate 61a with the first ears plate 51a respectively; The two ends of second arm-tie 82 are connected through connecting pin with the 4th ears plate 61b with the second ears plate 51b respectively.
Those skilled in the art can select the position that is provided with of the first ears plate 51a, the second ears plate 51b, the 3rd ears plate 61a and the 4th ears plate 61b according to the arrangement of first arm-tie 81 and second arm-tie 82.In order to make each arm-tie stressed evenly, prolong arm-tie service life, first arm-tie 81 is symmetrical set with second arm-tie, 82 preferred longitudinal plane of symmetrys about main platform 4.It will be understood by those skilled in the art that this longitudinal plane of symmetry is the longitudinal surface at the line of centers place of main platform along its head to caudal directions.Except that being arranged in parallel, the arrangement of first arm-tie 81 and second arm-tie 82 also can adopt other form, and is concrete like arranged crosswise, " eight " font layout etc.
In order to reduce the stressed of each arm-tie; The 3rd ears plate 61a and the 4th ears plate 61b be preferably disposed in first track frame, 21 sides by under position (Fig. 5); Promptly do not influencing under the track-type situation, second connect otic placode be welded on as far as possible the track frame line of centers by under the position.
Need to prove: in this embodiment, the number of ears plate is 2 in the first connection otic placode, and the number of the ears plate in the second connection otic placode also is 2, and the number of arm-tie also is 2.It will be understood by those skilled in the art that first connects otic placode is connected ears plate in the otic placode with second number and also can be one or more, corresponding, arm-tie also can be one or more, can play transfer function power equally, the stressed effect of minimizing pivoting support.The number of ears plate and the number of arm-tie are many more, and the application force that each arm-tie bore is minimum, help prolonging the service life of arm-tie more.
Mode two (Fig. 6)
First connects otic placode comprises: the first monaural plate 52a and the second monaural plate 52b;
Second connects otic placode comprises: the 3rd monaural plate 62a and the 4th monaural plate 62b;
Arm-tie comprises: the 3rd arm-tie 83, the 4th arm-tie 84, the 5th arm-tie 85 and the 6th arm-tie 86; Wherein, the two ends of the 3rd arm-tie 83 and the 4th arm-tie 84 are connected through connecting pin with the 3rd monaural plate 62a with the first monaural plate 52a respectively; The two ends of the 5th arm-tie 85 and the 6th arm-tie 86 are connected through connecting pin with the 4th monaural plate 62b with the second monaural plate 52b respectively.
Similar with mode one; In order to make each arm-tie stressed evenly; Prolong arm-tie service life, as preferred version: the 3rd arm-tie 83 and the 6th arm-tie 86 are symmetrical set about main flat-bed longitudinal plane of symmetry, the 4th arm-tie 84 and the 5th arm-tie 85 and be symmetrical set about main flat-bed longitudinal plane of symmetry.In order to reduce the stressed of each arm-tie, the 3rd monaural plate 62a and the 4th monaural plate 62b be preferably disposed in the first track frame side by under the position.
Need to prove: in this embodiment, the number of monaural plate is 2 in the above-mentioned first connection otic placode, and the number of monaural plate also is 2 in the second connection otic placode, and the number of arm-tie is that 4 (2 * 2) are individual.The first connection otic placode is connected monaural plate in the otic placode with second number also can be one or more.
The crawler crane that present embodiment provides has following advantage:
When crawler crane plays arm; A part of application force of jib can pass to track frame through main platform, arm-tie successively; And then reduced the stressed of pivoting support, and pivoting support and tie bolt thereof are played a protective role, pivoting support is not fragile; Simultaneously also make this crawler crane be suitable for installing longer jib, improve the lifting altitude of crawler crane.After playing arm, above-mentioned arm-tie dismounting is got final product, easy to use.
Embodiment 2
See also Fig. 7, the difference of crawler crane that this enforcement provides and embodiment 1 is also to comprise: the cocked supporting leg 9 of side that removably connects with the side of second track frame 22.
After crawler crane is provided with above-mentioned arm-tie,, improve the lifting altitude of crawler crane because not fragile this crawler crane that makes of pivoting support can be installed longer jib.The purpose of setting up the cocked supporting leg 9 of side is: the crawler crane car load line that topples is moved outward, and then guarantee that crawler crane still has advantages of higher stability when increasing jib.
Further, in the foregoing description, before playing arm next time, arm-tie is installed; This crawler crane also has choosing to be provided with: the arm-tie placement mechanism; This arm-tie placement mechanism is provided with the arm-tie fixed part, is used to place the arm-tie that disassembles, and specifically can be arm-tie placing box or arm-tie rack.Be preferably the arm-tie rack, this arm-tie rack comprises crossbeam and the radius stay that is arranged at the pin-and-hole of the worn arm-tie on the crossbeam.Above-mentioned arm-tie placement mechanism can be arranged at any position that does not influence the crawler crane normal operation, is preferably disposed on the side of first track frame 21.
Need to prove:
In the foregoing description, first connects otic placode adopts ears plate structure or monaural plate structure, it will be appreciated by persons skilled in the art that it also can adopt other structure, concrete as: hook or bolt etc.Second connects otic placode also can adopt other structure.
The force transmission that the effect of arm-tie is main platform is received is to track frame.In the foregoing description, arm-tie is connected otic placode with first, second be through the connecting pin bonded assembly, and as replacement scheme, arm-tie also can be connected with first, second engaging lug crab bolt.
In the foregoing description, arm-tie also can adopt stay cord, trombone slide etc. to play the parts of the transmission effect of power equally.Perhaps be employed in the version that increases oil cylinder, spring or other parts on the attaching parts that connects arm-tie or other patterns.
First connects otic placode can be connected through modes such as welding, rivet or be spirally connected with main platform afterbody; Second connects otic placode also can be connected through modes such as welding, rivet or be spirally connected with the first track frame side.But consider that riveted joint or mode such as be spirally connected can destroy the original structure of crawler crane master platform and/or track frame, so the present invention preferably adopts welding.
In the foregoing description; The second connection otic placode all is to be arranged at left track frame side (Fig. 1); Since rise the arm position also maybe for: main platform afterbody turns to a side of right side track frame, and this moment, the track frame on right side was first track frame, therefore; The side of first track frame and second track frame also can all be provided with second and be connected otic placode, connects arm-tie so that crawler crane plays the arm position in difference.Those skilled in the art can select the position that is provided with of the second connection otic placode according to the practice of construction demand.
The foregoing description provides the main platform of crawler crane to return back to when having gone to the arm position, and arm-tie and main platform afterbody link to each other with track frame near main platform afterbody, and this arm-tie is connected to a rigid body with crawler crane master platform and track frame thus.When crawler crane plays arm; Jib part application force can pass to track frame through main platform, arm-tie; And then reduced the stressed of pivoting support, and pivoting support and tie bolt thereof are played a protective role, avoid pivoting support impaired; Simultaneously also make this crawler crane be suitable for installing longer jib, improve the lifting altitude of crawler crane.After playing the arm end, above-mentioned arm-tie dismounting is got final product, easy to use.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. crawler crane; Comprise: base body (1) is installed in parallel in two track frames of said base body (1), through pivoting support (3) and said base body (1) bonded assembly master platform (4); The head of said main platform (4) is equipped with jib; It is characterized in that, also comprise: arm-tie (8), when said crawler crane has been in the arm state; First end of said arm-tie (8) is connected with the rear removable of said main platform (4), and second end of said arm-tie (8) and first track frame (21) removably connect; Said first track frame (21) is: when playing the arm state, in said two track frames near a track frame of said main platform (4) afterbody.
2. crawler crane according to claim 1 is characterized in that, the bottom surface of said main platform (4) afterbody is provided with first and connects otic placode (5), and first end of said arm-tie (8) is connected otic placode (5) with said first and removably connects.
3. crawler crane according to claim 2; It is characterized in that; The side of said first track frame (21) is provided with second and connects otic placode; Or the side of said two track frames is equipped with second and connects otic placode, second end of said arm-tie (8) be located at the said first track frame side second be connected otic placode and removably connect.
4. crawler crane according to claim 3 is characterized in that,
Said first connects otic placode comprises: the first ears plate (51a) and the second ears plate (51b);
Said second connects otic placode comprises: the 3rd ears plate (61a) and the 4th ears plate (61b);
Said arm-tie comprises: first arm-tie (81) and second arm-tie (82); The two ends of said first arm-tie (81) are connected through connecting pin or tie bolt with the 3rd ears plate (61a) with the said first ears plate (51a) respectively; The two ends of said second arm-tie (82) are connected through connecting pin or tie bolt with the 4th ears plate (61b) with the said second ears plate (51b) respectively.
5. crawler crane according to claim 4 is characterized in that, said first arm-tie (81) and second arm-tie (82) are symmetrical set about the longitudinal plane of symmetry of said main platform (4).
6. crawler crane according to claim 3 is characterized in that,
Said first connects otic placode comprises: the first monaural plate (52a) and the second monaural plate (52b);
Said second connects otic placode comprises: the 3rd monaural plate (62a) and the 4th monaural plate (62b);
Said arm-tie comprises: the 3rd arm-tie (83), the 4th arm-tie (84), the 5th arm-tie (85) and the 6th arm-tie (86), the two ends of said the 3rd arm-tie (83) and said the 4th arm-tie (84) are connected through connecting pin or tie bolt with said the 3rd monaural plate (62a) with the said first monaural plate (52a) respectively; The two ends of said the 5th arm-tie (85) and said the 6th arm-tie (86) are connected through connecting pin or tie bolt with said the 4th monaural plate (62b) with the said second monaural plate (52b) respectively.
7. crawler crane according to claim 6 is characterized in that, said the 3rd arm-tie (83) and said the 6th arm-tie (86) are symmetrical set about the longitudinal plane of symmetry of said main platform (4); Said the 4th arm-tie (84) and said the 5th arm-tie (85) are symmetrical set about the longitudinal plane of symmetry of said main platform (4).
8. according to each described crawler crane of claim 1 to 7, it is characterized in that, also comprise: the cocked supporting leg of side (9) that removably connects with second track frame (22) of said crawler crane; Said second track frame (22) is: when said crawler crane has been in the arm state, be arranged on the track frame of said first track frame (21) opposite side in said two track frames.
9. according to each described crawler crane of claim 1 to 7, it is characterized in that, also comprise:
Be arranged at the arm-tie placement mechanism of said first track frame (21), said arm-tie placement mechanism is provided with the arm-tie fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207717.4A CN102745604B (en) | 2012-06-21 | 2012-06-21 | Crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207717.4A CN102745604B (en) | 2012-06-21 | 2012-06-21 | Crawler crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102745604A true CN102745604A (en) | 2012-10-24 |
| CN102745604B CN102745604B (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210207717.4A Expired - Fee Related CN102745604B (en) | 2012-06-21 | 2012-06-21 | Crawler crane |
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| Country | Link |
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| CN (1) | CN102745604B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014213724A1 (en) | 2014-07-15 | 2016-01-21 | Terex Cranes Germany Gmbh | Crane, apparatus and method for diverting forces to a crane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110240582A1 (en) * | 2010-03-30 | 2011-10-06 | Liebherr-Werk Nenzing Gmbh | Fall-Back Support |
| CN202245831U (en) * | 2011-09-29 | 2012-05-30 | 中联重科股份有限公司 | Boom raising device of super-lift mast of crane |
| CN202704884U (en) * | 2012-06-21 | 2013-01-30 | 三一重工股份有限公司 | Crawling crane |
-
2012
- 2012-06-21 CN CN201210207717.4A patent/CN102745604B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110240582A1 (en) * | 2010-03-30 | 2011-10-06 | Liebherr-Werk Nenzing Gmbh | Fall-Back Support |
| CN202245831U (en) * | 2011-09-29 | 2012-05-30 | 中联重科股份有限公司 | Boom raising device of super-lift mast of crane |
| CN202704884U (en) * | 2012-06-21 | 2013-01-30 | 三一重工股份有限公司 | Crawling crane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014213724A1 (en) | 2014-07-15 | 2016-01-21 | Terex Cranes Germany Gmbh | Crane, apparatus and method for diverting forces to a crane |
| US10494237B2 (en) | 2014-07-15 | 2019-12-03 | Terex Global Gmbh | Crane, device and method for deflecting forces on a crane |
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| Publication number | Publication date |
|---|---|
| CN102745604B (en) | 2014-09-10 |
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Granted publication date: 20140910 Termination date: 20170621 |