CN201128444Y - Tensioner for crawler type running mechanism - Google Patents
Tensioner for crawler type running mechanism Download PDFInfo
- Publication number
- CN201128444Y CN201128444Y CNU2007200648132U CN200720064813U CN201128444Y CN 201128444 Y CN201128444 Y CN 201128444Y CN U2007200648132 U CNU2007200648132 U CN U2007200648132U CN 200720064813 U CN200720064813 U CN 200720064813U CN 201128444 Y CN201128444 Y CN 201128444Y
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- CN
- China
- Prior art keywords
- connecting rod
- bar
- connecting bar
- walker
- bogie wheel
- Prior art date
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Abstract
The utility model discloses a tightener of a tracked running mechanism, which comprises a running frame (2), a first bearing wheel (8) and a second bearing wheel (6). The running frame (2) is combined with a first connecting bar (1), a second connecting bar (3) and a third connecting bar (4) to form a four-bar linkage. The first bearing wheel (8) is arranged at an articulated point of the first connecting bar (1) and the second connecting bar (3). The second bearing wheel (6) is installed at the articulated point of the second connecting bar (3) and the third connecting bar (4). One end of a length adjusting bar is articulated with the running frame (2), and the other end is articulated with the third connecting bar (4). The length adjusting bar is a screw adjusting bar (5). The utility model relates to the tightener which has lighter weight, simpler structure and smaller size and which can realize larger shrinking range; moreover the tightener is good for installing and demounting a track and is fit for the tracked running mechanism with the function of changing tyres and the track mutually.
Description
Technical field
The utility model relates to a kind of tightening device, particularly relates to a kind of tightening device of crawler type walking mechanism.
Background technology
Crawler type walking mechanism traction tack is good, and grounding pressure is little, and the application on the engineering is only second to the rubber-tyred traveling gear.Its structure of crawler type walking mechanism generally is to be provided with driving wheel and a plurality of bogie wheel on walker, and crawler belt is looped around on driving wheel and a plurality of bogie wheel, and crawler type walking mechanism just has the problem of a crawler tensioning like this.Mostly weight is heavier for the tightening device that generally uses both at home and abroad at present; Complex structure; Bulky; And the scope of shrinking is less, is unfavorable for the installation and removal of crawler belt, also is not suitable for tire and crawler belt and exchanges function.
The utility model content
Technical problem to be solved in the utility model provides that a kind of weight is lighter, structure is simpler, volume is smaller and more exquisite and can realize bigger contraction scope, help the installation and removal of crawler belt, be fit to the tightening device that tire and crawler belt exchange the crawler type walking mechanism of function.
In order to solve the problems of the technologies described above, the tightening device of the crawler type walking mechanism that the utility model provides, comprise walker, first bogie wheel and second bogie wheel, described walker and first connecting rod, second connecting rod and third connecting rod are formed four-bar linkage, described first bogie wheel is installed on the hinge of described first connecting rod and second connecting rod, described second bogie wheel is installed on the hinge of described second connecting rod and third connecting rod, length adjustment bar one end and described walker are hinged, and the other end and described third connecting rod are hinged.
Described length adjustment bar is the screw rod adjust bar.
Adopt the tightening device of the crawler type walking mechanism of technique scheme, the length adjustment bar is elongated or shortened, promote the third connecting rod of four-bar mechanism, thereby make the four-bar mechanism distortion by rotation length adjustment bar.When the length adjustment bar extended, third connecting rod carried out tensioning around the hinge left-hand revolution of walker and third connecting rod to crawler belt; First connecting rod also carries out tensioning to crawler belt around the hinge left-hand revolution of walker and first connecting rod, thereby has realized bigger tensioning scope.When the length adjustment bar shortened, third connecting rod unclamped crawler belt around the hinge clickwise of walker and third connecting rod; First connecting rod also unclamps crawler belt around the hinge clickwise of walker and first connecting rod, thereby has realized bigger contraction scope, helps the installation and removal of crawler belt.
The tightening device that the utility model generally uses relatively both at home and abroad: this tightening device weight is lighter; Structure is simpler; Volume is smaller and more exquisite; And realized bigger contraction scope, helped the installation and removal of crawler belt, be fit to very much tire and crawler belt and exchange function.Other tightening device costs are cheaper relatively for this tightening device, install, safeguard more convenient.
In sum, the utility model is that a kind of weight is lighter, structure is simpler, volume is smaller and more exquisite and can realizes bigger contraction scope, helps the installation and removal of crawler belt, is fit to the tightening device that tire and crawler belt exchange the crawler type walking mechanism of function.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is used scheme drawing.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, on walker 2, be provided with driving wheel 10 and a plurality of bogie wheel 7, crawler belt 9 is looped around on driving wheel 10 and a plurality of bogie wheel 7, walker 2 is formed four-bar linkage with first connecting rod 1, second connecting rod 3 and third connecting rod 4, first bogie wheel 8 is installed on the hinge of first connecting rod 1 and second connecting rod 3, second bogie wheel 6 is installed on the hinge of second connecting rod 3 and third connecting rod 4, and screw rod adjust bar 5 one ends and walker 2 are hinged, and the other end and third connecting rod 4 are hinged.
Referring to Fig. 1 and Fig. 2, when 5 elongations of screw rod adjust bar, third connecting rod 4 carries out tensioning around the hinge left-hand revolution of walker 2 and third connecting rod 4 by 6 pairs of crawler belts of second bogie wheel 9; First connecting rod 1 also carries out tensioning to crawler belt 9 around the hinge left-hand revolution of walker 2 and first connecting rod 1 by first bogie wheel 8, thereby has realized bigger tensioning scope.When screw rod adjust bar 5 shortened, third connecting rod 4 unclamped crawler belt 9 around the hinge clickwise of walker 2 and third connecting rod 4 by second bogie wheel 6; First connecting rod 1 also unclamps crawler belt 9 around the hinge clickwise of walker 2 and first connecting rod 1 by first bogie wheel 8, thereby has realized bigger contraction scope, helps the installation and removal of crawler belt 9.
Claims (2)
1, a kind of tightening device of crawler type walking mechanism, comprise walker (2), first bogie wheel (8) and second bogie wheel (6), it is characterized in that: described walker (2) and first connecting rod (1), second connecting rod (3) and third connecting rod (4) are formed four-bar linkage, described first bogie wheel (8) is installed on the hinge of described first connecting rod (1) and second connecting rod (3), described second bogie wheel (6) is installed on the hinge of described second connecting rod (3) and third connecting rod (4), length adjustment bar one end and described walker (2) are hinged, and the other end and described third connecting rod (4) are hinged.
2, the tightening device of crawler type walking mechanism according to claim 1 is characterized in that: described length adjustment bar is screw rod adjust bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200648132U CN201128444Y (en) | 2007-10-23 | 2007-10-23 | Tensioner for crawler type running mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200648132U CN201128444Y (en) | 2007-10-23 | 2007-10-23 | Tensioner for crawler type running mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201128444Y true CN201128444Y (en) | 2008-10-08 |
Family
ID=40016277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200648132U Expired - Fee Related CN201128444Y (en) | 2007-10-23 | 2007-10-23 | Tensioner for crawler type running mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201128444Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644588A (en) * | 2018-12-18 | 2019-04-19 | 贵州大学 | A kind of small-sized chain deep ploughing machine that can be controlled tilling depth and be conveniently replaceable chain |
-
2007
- 2007-10-23 CN CNU2007200648132U patent/CN201128444Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644588A (en) * | 2018-12-18 | 2019-04-19 | 贵州大学 | A kind of small-sized chain deep ploughing machine that can be controlled tilling depth and be conveniently replaceable chain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |