CN103921855A - Compression roller device for crawler track unit, crawler track unit and hoisting equipment - Google Patents
Compression roller device for crawler track unit, crawler track unit and hoisting equipment Download PDFInfo
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- CN103921855A CN103921855A CN201410164524.4A CN201410164524A CN103921855A CN 103921855 A CN103921855 A CN 103921855A CN 201410164524 A CN201410164524 A CN 201410164524A CN 103921855 A CN103921855 A CN 103921855A
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Abstract
The invention discloses a compression roller device for a crawler track unit, the crawler track unit and hoisting equipment, and relates to the field of engineering machines. The problem that crawler shoes are greatly abraded is solved. The compression roller device comprises a supporting component and a rolling component. The supporting component is fixedly arranged, the rolling component is movably connected with the supporting component, and at least a part of the rolling component extends out of the supporting component and is used for pressing a crawler shoe. The rolling component can roll around the movably connected position relative to the supporting component along with horizontal movement of the crawler shoe. The compression roller device can effectively reduce abrasion of the crawler shoe.
Description
Technical field
The present invention relates to engineering machinery field, be specifically related to a kind of press-roller device for track unit, there is the track unit of above-mentioned press-roller device and there is the crawler belt weight-lifting equipment of above-mentioned track unit.
Background technology
In large-tonnage crawler belt weight-lifting equipment, because complete machine weight is large, walking ground quality is poor, and when structure is driven in the employing pair of large-tonnage crawler belt weight-lifting equipment, traveling gear just must be selected the very large reductor of driving torque.This reductor is expensive, and can only dependence on import, and the propulsive effort also often providing can not meet host requirements, causes more walking without force feedback.
In order to address the above problem, large-tonnage crawler belt weight-lifting equipment adopts 4 wheel driven form more, replaces two large-scale reductors with four small-sized reductors, and technology is more ripe, and the propulsive effort providing is also larger, can meet the walking demand of large-tonnage crawler belt weight-lifting equipment.
Referring to Fig. 1-Fig. 3, adopt the crawler body of 4 wheel driven structure, that one end at activity-driven frame 20 places is owing to need to meeting the function of tensioned tracks, and activity-driven frame 20 must leave enough strokes, so that crawler belt can obtain tensioning in time.But this will cause in the time that activity-driven frame 20 is tensioned to compared with far point, between drive wheel 23 and the caterpillar wheel 21 that is adjacent, there is one section of neutral gear region, the caterpillar block 25 in this section of neutral gear region is not pushed down by any wheel.
In the time that crawler body is walked, drive wheel 23 is subject to the torque M effect of direction shown in Fig. 1, and the caterpillar block 25 in neutral gear region will produce arching upward of δ direction because of the time effect of being activated the pressure N of power F and caterpillar wheel 21 in neutral gear region; While continuing to drive again, the caterpillar block 25 arching upward is tucked into caterpillar wheel 21 times by force, and the part that caterpillar block 25 arches upward is forced to depress, and causes occurring huge vibratory impulse and sound, and is next circulation.This phenomenon has had a strong impact on the smooth running of crawler body, especially, in the time that crawler belt weight-lifting equipment band carries walking, can cause titanic peril to crawler belt weight-lifting equipment and hanging object.So, need to adopt certain mode to push down caterpillar block 25, caterpillar block 25 is not arched upward when walking.
Referring to Fig. 2 and Fig. 3, in prior art, take following manner to prevent that caterpillar block 25 from arching upward: on Side frame 22, directly to weld or assembling pressing plate 24 height arching upward in order to reduce caterpillar block 25.As shown in Figure 2, in the time that crawler belt weight-lifting equipment is walked along the direction of arrow shown in Fig. 2, can there is the trend that arches upward in the caterpillar block 25 between drive wheel 23 and the caterpillar wheel 21 that is adjacent, in the time that caterpillar block 25 arches upward, will be welded or be assemblied in the compacting of the pressing plate 24 on Side frame 22, thereby the height that arches upward that reduces caterpillar block 25, reduces vibration and the impact of crawler belt weight-lifting equipment.
Crawler belt weight-lifting equipment comprises crawler body, jib and turntable.Crawler body comprises track unit and vehicle frame.
Track unit: claim again track beam, track unit.Generally formed by parts such as Side frame 22, traveling gear, drive wheel 23, caterpillar wheel 21, holder sprocket wheel, caterpillar block 25 and activity-driven framves 20.For the track unit that adopts 4 wheel driven, the two ends of track unit are all drive wheels 23, and wherein the drive wheel 23 of one end is fixedly mounted on track unit; The drive wheel 23 of the other end is arranged on activity-driven frame 20, and can follow activity-driven frame 20 to move in the lump.
Activity-driven frame 20: a kind of structure that drive wheel 23 and driving speed reducer is installed and can regulates crawler belt tighting degree.Because activity-driven frame 20 has drive wheel 23 and driving speed reducer, so walking propulsive effort can be provided.
Crawler tensioning: crawler body when walking, through stressed and wearing and tearing after a while, can strengthen by the gap on caterpillar block 25 between inwall and the bearing pin of pin-and-hole, causes caterpillar block 25 lax.At this moment need to promote to there is the activity-driven frame 20 of tensioning function by external force (oil cylinder, jack etc.), until push away motionlessly, then between activity-driven frame 20 and Side frame 22, insert adjusting pad, prevent that activity-driven frame 20 from retracting.
Contriver finds, at least has following problems in prior art:
No matter be welded type or fabricated pressing plate 24, be to be all fixed on Side frame 22, in the time that caterpillar block 25 arches upward, direct friction between caterpillar block 25 and pressing plate 24, thus cause generation between caterpillar block 25 and pressing plate 24 to be difficult to the wearing and tearing of repairing.And the neutral gear region between drive wheel 23 and the caterpillar wheel 21 that is adjacent is limited, the rolled-up stock that is difficult to other versions are set is to push down caterpillar block 25.
Summary of the invention
One of them object of the present invention is to propose a kind of press-roller device for track unit, track unit and weight-lifting equipment, the wearing and tearing that are subject to for reducing caterpillar block.
Many technique effects that optimal technical scheme of the present invention can produce will describe in detail later.
For achieving the above object, the invention provides following technical scheme:
The invention provides a kind of press-roller device for track unit, wherein, comprise supporting component and rolling assembly;
Described rolling assembly is flexibly connected with described supporting component, described rolling assembly stretch out at least partly described supporting component, and this part is used for being pressed in caterpillar block; Described rolling assembly can roll with respect to described supporting component around active connection place along with the translation of described caterpillar block.
In optional or preferred embodiment, described supporting component comprises supporter and rotating shaft, and described rolling assembly comprises pressure roller; Described supporter and described pressure roller are arranged on the diverse location in described shaft length direction, wherein: described supporter and described rotating shaft are fixed, and described pressure roller and described rotating shaft pivot joint.
In optional or preferred embodiment, described supporter is tabular, and quantity is at least three; The quantity of described pressure roller is at least two;
Each described pressure roller disperses to be arranged in described rotating shaft by bearing separately, and is fixed with described supporter by shaft hole matching in the described rotating shaft of the both sides of each described pressure roller.
In optional or preferred embodiment, between two adjacent described supporters, be welded and fixed by connector.
The present invention provides a kind of track unit again, comprise activity-driven frame, Side frame and caterpillar block, wherein, described track unit also comprises that the arbitrary technical scheme of the present invention carries the press-roller device for track unit of stating, above the described caterpillar block between the drive wheel that the rolling assembly of described press-roller device is installed on described activity-driven frame and the caterpillar wheel adjacent with this drive wheel in neutral gear region.
In optional or preferred embodiment, the supporting component of described press-roller device is fixedly connected with described activity-driven frame.
In optional or preferred embodiment,
The supporter quantity of described supporting component is at least three, and is positioned at the described supporter of both sides and the welding of the mainboard of described activity-driven frame, and the described supporter in the middle of being positioned at all welds with the arc plate of described activity-driven frame.
In optional or preferred embodiment, the supporting component of described press-roller device is fixedly connected with described Side frame.
In optional or preferred embodiment, the lower surface distance of the rolling assembly of described press-roller device is positioned at the upper surface 3mm-5mm of the described caterpillar block of described press-roller device below.
The present invention provides a kind of crawler belt weight-lifting equipment again, wherein, comprises the track unit that the arbitrary technical scheme of the present invention provides.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
In technique scheme, caterpillar block is in motion process, and rolling assembly can roll along with the motion of caterpillar block, and the friction force of friction of rolling is less than the friction force of cliding friction, so can reduce the friction force that caterpillar block is subject to, reduces the wearing and tearing of caterpillar block.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the local structure schematic diagram of crawler belt weight-lifting equipment in prior art;
Fig. 2 installs the local structure schematic diagram after pressing plate on crawler belt weight-lifting equipment in prior art;
Fig. 3 installs the sectional perspective structural representation after pressing plate on crawler belt weight-lifting equipment in prior art;
The scheme of installation of the press-roller device for track unit that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is arranged on the perspective view on activity-driven frame for the press-roller device for track unit that the embodiment of the present invention provides;
Fig. 6 is arranged on the perspective view on activity-driven frame for the supporting component of the press-roller device for track unit that the embodiment of the present invention provides;
The decomposition texture schematic diagram of the press-roller device for track unit that Fig. 7 provides for the embodiment of the present invention;
Reference numeral:
1, supporting component; 2, pressure roller; 3, rotating shaft;
4, axle bumper plate; 5, activity-driven frame; 6, caterpillar block;
7, drive wheel; 8, press-roller device; 9, supporter;
10, connector; 11, through hole; 12, bearing;
13, through hole is installed; 14, mainboard; 15, arc plate;
16, caterpillar wheel; 17, Side frame; 20, activity-driven frame;
21, caterpillar wheel; 22, Side frame; 23, drive wheel;
24, pressing plate; 25, caterpillar block.
Detailed description of the invention
Can understand the distinctive points between content of the present invention and the present invention and prior art with reference to accompanying drawing Fig. 1～Fig. 7 and word content below.Below by accompanying drawing and enumerate the mode of optional embodiment more of the present invention, technical scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characterictic in the present embodiment, any technical scheme is all one or more in technical characterictic or the optional technical scheme of plurality of optional, cannot exhaustive all alternative technical characterictics of the present invention and alternative technical scheme in order to describe succinct need in presents, also the embodiment that is not easy to each technical characterictic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: any technical characterictic and any technical scheme in the present embodiment all do not limit the scope of the invention, protection scope of the present invention should comprise that those skilled in the art do not pay the thinkable any alternate embodiments of creative work.
Below in conjunction with Fig. 4～Fig. 7, technical scheme provided by the invention is carried out to more detailed elaboration, the technical scheme of arbitrary technological means provided by the invention being replaced or arbitrarily two or more technological means provided by the invention or technical characterictic being combined mutually and obtain all should be within protection scope of the present invention.
The embodiment of the present invention provides a kind of press-roller device 8 for track unit, advantageous applications is at crawler belt weight-lifting equipment or have on the equipment of similar structures, to push down the caterpillar block 6 in neutral gear region between the drive wheel 7 installed and the caterpillar wheel 16 adjacent with this drive wheel 7 on activity-driven frame 5.For express the structure of press-roller device 8 from multiple angles, the visual angle of Fig. 5 is different from the visual angle of Fig. 4, Fig. 6 and Fig. 7.
This press-roller device 8 comprises supporting component 1 and rolling assembly; Supporting component 1 is for fixing with miscellaneous part (being preferably activity-driven frame 5), and rolling assembly is flexibly connected with supporting component 1, rolling assembly stretch out at least partly supporting component 1, and this part is used for being pressed in caterpillar block 6; Rolling assembly can roll with respect to supporting component 1 around active connection place along with the translation of caterpillar block 6.
In technique scheme, caterpillar block 6 is in motion process, and rolling assembly rolls along with the motion of caterpillar block 6, and the friction force of friction of rolling is less than the friction force of cliding friction, so can reduce the friction force that caterpillar block 6 is subject to, reduces the wearing and tearing of caterpillar block 6.
When practical application, the supporting component of press-roller device 8 is preferably fixed on the mainboard 14 of activity-driven frame 5 and/or the bottom surface of arc plate 15.The lowest surfaces of rolling assembly coordinates with the upper surface of caterpillar block 6, and this lowest surfaces preferably has certain gap apart from the upper surface of caterpillar block 6, is preferably 3mm-5mm.Arrange so on the one hand and can ensure that press-roller device 8 is not the first stressed object; Also can make on the other hand caterpillar block 6 arch upward phenomenon time, press-roller device 8 can be pushed down caterpillar block 6 in time, prevents that caterpillar block 6 from further arching upward.
Supporting component 1 is as load bearing component, and its load-carrying capacity should be able to meet operating needs.Supporting component 1 can be entity structure or framed structure, certainly, is not limited to aforesaid way.The concrete structure of rolling assembly can have multiple, such as, adopt running roller structure or globosity etc.Annexation between supporting component 1 and rolling assembly can be for hinged, pivot joint, form hinged and pivot joint etc. by different parts simultaneously, hereinafter will provide the specific implementation that adopts pivot joint between the two.
Referring to Fig. 7, supporting component 1 comprises supporter 9 and rotating shaft 3, and rolling assembly comprises pressure roller 2.Supporter 9 is for fixing with miscellaneous part (being preferably activity-driven frame 5), and supporter 9 and pressure roller 2 are arranged on the diverse location on rotating shaft 3 length directions, and wherein, supporter 9 is fixing with rotating shaft 3, pressure roller 2 and rotating shaft 3 pivot joints.Particularly, supporter 9 is fixed with certain or a few place on rotating shaft 3 length directions; Pressure roller 2 has the through hole 13 of installation, the inwall of through hole 13 and the outer ring of bearing 12 is installed and fixes, and the inner ring of bearing 12 is set in another place or another a few place on rotating shaft 3 length directions.By bearing 12, between pressure roller 2 and rotating shaft 3, form pivot joint.Supporter 9 has various structures form, such as platy structure, pedestal etc.Bearing 12 is set, can increases the load-carrying capacity of whole press-roller device 8.Adopt supporting component 1 and the rolling assembly of said structure, the number of components adopting is few, and supporter 9 and pressure roller 2 be all arranged in rotating shaft 3, whole press-roller device compact conformation after installing, and space shared when this also makes whole press-roller device install is little.
Herein, it is tabular that supporter 9 is specifically, and this architecture quality is light and load-carrying capacity is better.The quantity of supporter 9 is at least three, and each supporter 9 preferred parallel settings, all offer through hole 11 on every supporter 9, between rotating shaft 3 and each through hole 11, all form shaft hole matching.The structure of each supporter 9 can be just the same, and the quantity of supporter 9 and thickness depend on the magnitude of load that it bears.
The quantity of pressure roller 2 equates also can have at least two; Each pressure roller 2 disperses to be arranged in rotating shaft 3 by bearing 12 separately, and is provided with supporter 9 by above-mentioned shaft hole matching in the rotating shaft 3 of the both sides of each pressure roller 2, with the bearing force equilibrium that ensures that each pressure roller 2 is subject to.The axis of each pressure roller 2 preferably can be parallel to the Width of caterpillar block 6, to make pressure roller 2 and caterpillar block 6 can have larger area of contact and can roll well.Pressure roller 2 plays the effect of compacting caterpillar block 6, can effectively reduce even prevent from upwards arching upward when caterpillar block 6 is activated power and impact, loud noise, affect the appearance of crawler belt device security problem.
Herein, between two adjacent supporters 9, be welded and fixed by connector 10.The least significant end of connector 10 is higher than the least significant end of pressure roller 2, and connector 10 need be positioned at the rolling track outside of pressure roller 2, in order to avoid affect the motion of pressure roller 2.Herein, the outline of each supporter 9 is all rounded, and connector 10 is rectangular plate, and the two ends of connector 10 are welded and fixed with the top edges of adjacent two supporters 9 respectively.Adopt connector 10 that each supporter 9 is welded into an entirety, can strengthen the load-carrying capacity of supporting component 1.
For preventing that rotating shaft 3 from coming off from supporter 9, two ends of rotating shaft 3 are all fixed with axle bumper plate 4.Herein, axle bumper plate 4 adopts slab construction, and the length dimension of axle bumper plate 4 and/or width dimensions are greater than the internal diameter of through hole 11.Axle bumper plate 4 is bolted with the end of rotating shaft 3.
Referring to Fig. 4, the embodiment of the present invention also provides a kind of track unit, comprise activity-driven frame 5, Side frame 17 and caterpillar block 6, wherein, track unit also comprises the press-roller device 8 for track unit that the arbitrary technical scheme of the present invention provides, above the caterpillar block 6 between the drive wheel 7 that the rolling assembly of press-roller device 8 is installed on activity-driven frame 5 and the caterpillar wheel 16 adjacent with this drive wheel 7 in neutral gear region.The quantity of caterpillar wheel 16 has multiple, and the caterpillar wheel 16 adjacent with drive wheel 7 refers to the caterpillar wheel 16 nearest apart from drive wheel 7 herein.
The compact conformation of above-mentioned press-roller device 8, installs shared space little.
Further, the supporting component 1 of press-roller device 8 is fixedly connected with activity-driven frame 5.Particularly, still adopt the structure of supporter 9 and rotating shaft 3 with supporting component 1, the quantity of supporter 9 can at least be set to three, and the supporter 9 that is positioned at both sides welds with the mainboard 14 of activity-driven frame 5; Supporter 9 in the middle of being positioned at all welds with the arc plate 15 of activity-driven frame 5, adopts many places to be welded and fixed, and can ensure the reliability that supporting component 1 connects.
The supporting component 1 of press-roller device 8 is fixedly connected with activity-driven frame 5, except can reducing the friction force that caterpillar block 6 is subject to, press-roller device 8 can also be followed activity-driven frame 5 and synchronously outwards be walked, press-roller device 8 and the distance being arranged between the drive wheel 7 on activity-driven frame 5 can not change, like this, even if activity-driven frame 5 has stretched out a segment distance, the rolling assembly of press-roller device 8 also can be pushed down caterpillar block 6 all the time, and the height that caterpillar block 6 arches upward can not become large along with the outside tensioning of activity-driven frame 5.
The lower surface distance of the rolling assembly of press-roller device 8 is positioned at the upper surface 3mm-5mm of the caterpillar block 6 of press-roller device 8 belows.Arrange so on the one hand and can ensure that press-roller device 8 is not the first stressed object; Also can make on the other hand caterpillar block 6 arch upward phenomenon time, press-roller device 8 can be pushed down caterpillar block 6 in time, prevents that caterpillar block 6 from further arching upward.
Technique scheme, can effectively improve the phenomenon that in crawler travel process, caterpillar block 6 arches upward, make the walking of crawler belt weight-lifting equipment more steady, and the degree of wear of caterpillar block 6 is alleviated greatly, the impact shock when walking of crawler belt weight-lifting equipment significantly reduces, and the safety of whole crawler belt weight-lifting equipment and hoisting object thereof is protected.
, there are two key points in the track unit that technique scheme provides:
(1) pressure roller 2 can be followed the motion of caterpillar block 6 and be rotated;
(2) pressure roller 2 is arranged on activity-driven frame 5, and distance between drive wheel 7 on activity-driven frame 5 remains constant.
Above two key points, existing deficiency while making press-roller device 8 just in time solve in prior art welded type or fabricated pressing plate 24 to be arranged on Side frame 22, and there is following beneficial effect:
(1) press-roller device 8 can pushed down caterpillar block 6 tightly, because pressure roller 2 can roll, make between pressure roller 2 and caterpillar block 6 is friction of rolling, can reduce like this friction force that caterpillar block 6 is subject to, and the walking of whole caterpillar block 6 is more steady, vibratory impulse significantly reduces, and when crawler body walking, the safety of whole crawler belt weight-lifting equipment and hoisting object thereof is protected.
(2) press-roller device 8 is arranged on activity-driven frame 5, so in the time of track unit tensioning, along with activity-driven frame 5 is pushed out, press-roller device 8 is also and then toward extrapolated, press-roller device 8 still can be pushed down caterpillar block 6, so there will not be the distance being pushed out along with activity-driven frame 5 to become large, arching upward of caterpillar block 6 highly and then becomes large phenomenon.
Certainly, the supporting component 1 of press-roller device 8 also can be fixedly connected with Side frame 17, also can make the caterpillar block 6 in neutral gear region between drive wheel 7 that the rolling assembly of press-roller device 8 installs on activity-driven frame 5 and the caterpillar wheel 16 adjacent with this drive wheel 7 above.The supporting component 1 of press-roller device 8 is fixedly connected with Side frame 17, friction between the rolling assembly of press-roller device 8 and caterpillar block 6 is friction of rolling, the friction force of friction of rolling is less than the friction force of cliding friction, so also can reduce the friction force that caterpillar block 6 is subject to, reduce the wearing and tearing that caterpillar block 6 is subject to.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range is only the obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, cannot be exhaustive, so the present invention just discloses part numerical value with casehistory technical scheme of the present invention, and the above-mentioned numerical value of enumerating should not form the restriction to the invention protection domain.
If used the word such as " first ", " second " to limit parts herein, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe above parts are distinguished as not having outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if the invention described above discloses or has related to parts or the framing member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can dismantle and be fixedly connected with (for example using bolt or screw to connect), also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously cannot adopt except integrally formed technique) by integral type structure (use foundry technique is integrally formed to be created).
In addition, in the disclosed arbitrary technical scheme of the invention described above applied for the term that represents position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts provided by the invention can be both to be assembled by multiple independent component parts, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.
Claims (10)
1. for a press-roller device for track unit, it is characterized in that, comprise supporting component and rolling assembly;
Described rolling assembly is flexibly connected with described supporting component, described rolling assembly stretch out at least partly described supporting component, and this part is used for being pressed in caterpillar block; Described rolling assembly can roll with respect to described supporting component around active connection place along with the translation of described caterpillar block.
2. the press-roller device for track unit according to claim 1, is characterized in that, described supporting component comprises supporter and rotating shaft, and described rolling assembly comprises pressure roller; Described supporter and described pressure roller are arranged on the diverse location in described shaft length direction, wherein: described supporter and described rotating shaft are fixed, and described pressure roller and described rotating shaft pivot joint.
3. the press-roller device for track unit according to claim 2, is characterized in that, described supporter is tabular, and quantity is at least three; The quantity of described pressure roller is at least two;
Each described pressure roller disperses to be arranged in described rotating shaft by bearing separately, and is fixed with described supporter by shaft hole matching in the described rotating shaft of the both sides of each described pressure roller.
4. the press-roller device for track unit according to claim 3, is characterized in that, between two adjacent described supporters, is welded and fixed by connector.
5. a track unit, comprise activity-driven frame, Side frame and caterpillar block, it is characterized in that, described track unit also comprises the arbitrary described press-roller device for track unit of claim 1-4, above the described caterpillar block between the drive wheel that the rolling assembly of described press-roller device is installed on described activity-driven frame and the caterpillar wheel adjacent with this drive wheel in neutral gear region.
6. track unit according to claim 5, is characterized in that, the supporting component of described press-roller device is fixedly connected with described activity-driven frame.
7. track unit according to claim 6, it is characterized in that, the supporter quantity of described supporting component is at least three, and be positioned at the described supporter of both sides and the welding of the mainboard of described activity-driven frame, the described supporter in the middle of being positioned at all welds with the arc plate of described activity-driven frame.
8. track unit according to claim 5, is characterized in that, the supporting component of described press-roller device is fixedly connected with described Side frame.
9. according to the arbitrary described track unit of claim 5-8, it is characterized in that, the lower surface distance of the rolling assembly of described press-roller device is positioned at the upper surface 3mm-5mm of the described caterpillar block of described press-roller device below.
10. a crawler belt weight-lifting equipment, is characterized in that, comprises the arbitrary described track unit of claim 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164524.4A CN103921855A (en) | 2014-04-22 | 2014-04-22 | Compression roller device for crawler track unit, crawler track unit and hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164524.4A CN103921855A (en) | 2014-04-22 | 2014-04-22 | Compression roller device for crawler track unit, crawler track unit and hoisting equipment |
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| CN103921855A true CN103921855A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410164524.4A Pending CN103921855A (en) | 2014-04-22 | 2014-04-22 | Compression roller device for crawler track unit, crawler track unit and hoisting equipment |
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| CN (1) | CN103921855A (en) |
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|---|---|---|---|---|
| CN113264126A (en) * | 2021-06-29 | 2021-08-17 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawler frame and crawler crane |
| CN113264126B (en) * | 2021-06-29 | 2023-09-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawler frame and crawler crane |
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Application publication date: 20140716 |
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