CN203511810U - Hydraulic telescopic caterpillar band under frame positioning structure - Google Patents
Hydraulic telescopic caterpillar band under frame positioning structure Download PDFInfo
- Publication number
- CN203511810U CN203511810U CN201320580737.6U CN201320580737U CN203511810U CN 203511810 U CN203511810 U CN 203511810U CN 201320580737 U CN201320580737 U CN 201320580737U CN 203511810 U CN203511810 U CN 203511810U
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- CN
- China
- Prior art keywords
- middle frame
- guide groove
- steel pipe
- bolt
- caterpillar band
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- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic telescopic caterpillar band under frame positioning structure. The hydraulic telescopic caterpillar band under frame positioning structure comprises a middle frame (1), a middle frame left square steel tube, four support steel tubes (6) and a caterpillar band beam, wherein at least one support steel tube (6) is provided with a guide groove (7) which is consistent with the telescopic direction of the support steel tube (6), the length of the guide groove (7) is determined according to the horizontally telescopic length of the caterpillar band beam, a bolt installation boss (4) is welded to a reinforcing plate (5), the reinforcing plate (5) is welded to middle frame square steel tubes, and a bolt positioning pin (3) is installed on the bolt installation boss (4) in a screwing mode, penetrates through the reinforcing plate (5) and the middle frame square steel tubes in sequence, and extends to the inside of the guide groove (7). The hydraulic telescopic caterpillar band under frame positioning structure is high in positioning accuracy, simple in structure and small in size.
Description
Technical field
The utility model relates to a kind of hydraulically extensible track undercarriage location structure.
Background technology
The contraction of traditional track undercarriage realizes spacing by left and right screw rod, Limit screw one end is fixed on track beam, and the other end is passed in the spacing hole on middle frame overhead gage.When crawler belt is extended to certain length, thereby the baffle plate on middle frame has limited the extension that the continuation campaign of screw rod has limited crawler belt.This kind of locate mode more complicated, takes up room, and dimensional accuracy is difficult to guarantee, difficult in maintenance, and when discontinuity, easily makes that left and right track frame is not parallel or collapsing length is inconsistent.
Utility model content
Technical problem to be solved in the utility model is to provide the hydraulically extensible track undercarriage location structure that a kind of positioning precision is high, simple in structure, volume is little.
In order to solve the problems of the technologies described above, the hydraulically extensible track undercarriage location structure that the utility model provides, comprise middle frame, middle frame square steel tube, 4 stand steel pipe and track beam, at least in the stand steel pipe described in, be provided with the guide groove consistent with the flexible direction of described stand steel pipe, the length of described guide groove is determined according to the collapsing length of the track beam of left and right, bolt installation base is welded on brace panel, described brace panel is welded on described middle frame square steel tube, the brace panel of Bolt to position pin spinning on described bolt installation base and described in connecting successively, described middle frame square steel tube extends in described guide groove.
Described stand steel pipe adopts V-structure to be placed in described middle frame square steel tube.
The Bolt to position pin being equipped with in stand steel pipe described in each described in described guide groove and described Bolt to position pin and 4 is symmetrical arranged.
The hydraulically extensible track undercarriage location structure that adopts technique scheme, utilizes Bolt to position pin and guide groove to realize the control of crawler belt collapsing length.At the V of middle frame square steel tube face, two bolt boss have been installed, on boss welding brace panel, consider and stressedly at the right-hand steel pipe of middle frame, be arranged symmetrically with equally two bolt installation bases, Bolt to position pin is fixed by bolt installation base, connect successively brace panel, middle frame square steel tube, stretch in guide groove, the length of guide groove is determined according to the collapsing length of left and right beam, when the stand steel pipe of the track beam of left and right is slided in middle frame square steel tube, Bolt to position pin slides and guarantees the end position almost symmetry of left and right track beam in guide groove.
Stand steel pipe adopts V-structure to be placed in described middle frame square steel tube, adopts this kind of arrangement to realize set by actv., has increased area of thrust surface, has reduced the tolerance clearance of track frame, and slide rail can be shunk by pulsation-free.
In sum, the utility model is the hydraulically extensible track undercarriage location structure that a kind of positioning precision is high, simple in structure, volume is little.
Accompanying drawing explanation
Fig. 1 is track beam of the present utility model birds-eye view when overhanging.
Fig. 2 is along A-A line cut-away view in Fig. 1.
Fig. 3 is the end position birds-eye view that track beam of the present utility model inside contracts.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, Fig. 2 and Fig. 3, one side of middle frame 1 is provided with middle frame left steel pipe 2, opposite side is provided with the right-hand steel pipe 9 of middle frame, track beam 8 is connected with stand steel pipe 6 and stand steel pipe 6 adopts V-structure to be placed in middle frame left steel pipe 2 and the right-hand steel pipe 9 of middle frame, in each stand steel pipe 6, be provided with the guide groove consistent with the flexible direction of stand steel pipe 67, the length of guide groove 7 is according to left track beam 8, the collapsing length of right-hand track chiain beam 10 is determined, 4 brace panels 5 are symmetrically welded on middle frame left steel pipe 2 and the right-hand steel pipe 9 of middle frame, on each brace panel 5, be welded with bolt installation base 4, on each bolt installation base 4, be installed with Bolt to position pin 3 and Bolt to position pin 3 connects brace panel 5 successively, the right-hand steel pipe 9 of middle frame left steel pipe 2 or middle frame extends in guide groove 7.
Referring to Fig. 1, Fig. 2 and Fig. 3, utilize Bolt to position pin 3 and guide groove 7 to realize the control of crawler belt collapsing length.The length of guide groove 7 is determined according to the collapsing length of left track beam 8, right-hand track chiain beam 10, the stand steel pipe 6 of left and right is when middle frame left steel pipe 2 and the interior slip of the right-hand steel pipe 9 of middle frame, and Bolt to position pin 3 guarantees the end position almost symmetry of left track beam 8, right-hand track chiain beam 10 in the interior slip of guide groove 7.
Stand steel pipe 7 adopts V-structure to be placed in middle frame left steel pipe 2 and the right-hand steel pipe 9 of middle frame, adopts this kind of arrangement to realize set by actv., has increased area of thrust surface, has reduced the tolerance clearance of track frame, and slide rail can be shunk by pulsation-free.Actv. reduces the tolerance clearance of track frame, is 0.707 times of horizontal positioned steel pipe tolerance clearance.
Claims (3)
1. a hydraulically extensible track undercarriage location structure, comprise middle frame (1), middle frame square steel tube, 4 stand steel pipe (6) and track beam, it is characterized in that: at least in the stand steel pipe described in (6), be provided with the guide groove (7) consistent with the flexible direction of described stand steel pipe (6), the length of described guide groove (7) is determined according to the collapsing length of the track beam of left and right, bolt installation base (4) is welded on brace panel (5), described brace panel (5) is welded on described middle frame square steel tube, Bolt to position pin (3) spinning above and successively connects described brace panel (5) at described bolt installation base (4), described middle frame square steel tube extends in described guide groove (7).
2. hydraulically extensible track undercarriage location structure according to claim 1, is characterized in that: described stand steel pipe (6) adopts V-structure to be placed in described middle frame square steel tube.
3. hydraulically extensible track undercarriage location structure according to claim 1 and 2, is characterized in that: the Bolt to position pin (3) being equipped with in the stand steel pipe described in each (6) described in described guide groove (7) and described Bolt to position pin (3) and 4 is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580737.6U CN203511810U (en) | 2013-09-18 | 2013-09-18 | Hydraulic telescopic caterpillar band under frame positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580737.6U CN203511810U (en) | 2013-09-18 | 2013-09-18 | Hydraulic telescopic caterpillar band under frame positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203511810U true CN203511810U (en) | 2014-04-02 |
Family
ID=50370785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320580737.6U Expired - Lifetime CN203511810U (en) | 2013-09-18 | 2013-09-18 | Hydraulic telescopic caterpillar band under frame positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203511810U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290550A (en) * | 2014-10-16 | 2015-01-21 | 张立明 | River and lake walking device |
| CN104309424A (en) * | 2014-10-16 | 2015-01-28 | 江苏省水利机械制造有限公司 | Track-changeable swamp walking device |
| CN109319005A (en) * | 2018-12-05 | 2019-02-12 | 山东帝盟重工机械有限公司 | A kind of general assembly of crawler-mounted excavator chassis |
| CN116135772A (en) * | 2023-04-20 | 2023-05-19 | 杭州尚研机械制造有限公司 | Large crawler-type telescopic crane chassis and processing method thereof |
-
2013
- 2013-09-18 CN CN201320580737.6U patent/CN203511810U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290550A (en) * | 2014-10-16 | 2015-01-21 | 张立明 | River and lake walking device |
| CN104309424A (en) * | 2014-10-16 | 2015-01-28 | 江苏省水利机械制造有限公司 | Track-changeable swamp walking device |
| CN104290550B (en) * | 2014-10-16 | 2016-01-13 | 张立明 | A kind of lake, river running gear |
| WO2016058240A1 (en) * | 2014-10-16 | 2016-04-21 | 张立明 | River and lake walking device |
| CN104309424B (en) * | 2014-10-16 | 2016-09-28 | 江苏省水利机械制造有限公司 | Rail-variable marsh driving gear |
| CN109319005A (en) * | 2018-12-05 | 2019-02-12 | 山东帝盟重工机械有限公司 | A kind of general assembly of crawler-mounted excavator chassis |
| CN116135772A (en) * | 2023-04-20 | 2023-05-19 | 杭州尚研机械制造有限公司 | Large crawler-type telescopic crane chassis and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |