CN218929632U - Crawler-type universal power chassis capable of being tensioned bidirectionally - Google Patents
Crawler-type universal power chassis capable of being tensioned bidirectionally Download PDFInfo
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- CN218929632U CN218929632U CN202222871656.3U CN202222871656U CN218929632U CN 218929632 U CN218929632 U CN 218929632U CN 202222871656 U CN202222871656 U CN 202222871656U CN 218929632 U CN218929632 U CN 218929632U
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- chassis
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Abstract
The utility model relates to a crawler-type universal power chassis capable of being tensioned bidirectionally, which comprises a chassis bracket (7), a transmission case (5) and crawler assemblies arranged on two sides, wherein each crawler assembly comprises a crawler (2), a driving wheel (6), a bearing wheel (8), a transverse tensioning spring (3) and a transverse tensioning wheel (1), and the transverse tensioning wheel (1) is arranged at the front ends of the chassis bracket (7) and the crawler (2). The crawler belt assembly further comprises a longitudinal tensioning supporting mechanism (4) perpendicular to the chassis bracket (7), and the crawler belt assembly consists of a supporting seat (401), a longitudinal tensioning supporting wheel (402), an adjusting bolt (403), a supporting shaft (404) and a locking nut (405). The longitudinal tensioning support wheel (402) can be adjusted up and down relative to the chassis support (7). The crawler belt (2) can be tensioned longitudinally and bidirectionally, and plays a role in supporting while being tensioned longitudinally, so that the crawler belt can run more stably and reliably.
Description
Technical Field
The utility model relates to agricultural machinery, in particular to a crawler-type universal power chassis capable of being tensioned in two directions.
Background
Conventional track and wheel tractors are bulky and heavy and are not suitable for operation in hilly areas with a certain gradient. At present, most of the existing small crawler-type working machines are high-clearance power chassis and have high-clearance operation platforms. The high ground clearance is that the chassis operation platform needs to ride on the upper end of the plant to walk across. The power chassis with high ground clearance has the advantages that the height and width of the chassis are required to be larger than the height and the line width of plants, a larger operation platform is provided, two-stage transmission such as a chain is needed between a power machine and a travelling mechanism, the overall size of the whole machine is large, the gravity center is high, the stability is poor, the turning radius is large, and the power chassis is not suitable for working in hilly lands with a certain gradient.
CN201520795499X discloses a universal power chassis of a multifunctional facility agriculture small-sized working machine, which improves a crawler running gear through different arrangement modes of a driving wheel, a driven wheel and a loading wheel, reduces the chassis height, improves the climbing performance of a crawler, and improves the stability of the whole machine; however, this patent only has fixed track supporting wheels, cannot adjust the height thereof to support the tracks, and can only transversely tension the tracks. When the position of the fixed supporting wheel has errors, the condition that the crawler belt is not supported in place or is supported too tightly can occur.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides a crawler-type universal power chassis capable of being tensioned bidirectionally, wherein a tensioning mechanism capable of being adjusted longitudinally is added on the basis of the prior art, and the tensioning condition of a crawler can be adjusted according to actual conditions.
The technical scheme of the utility model is that the crawler belt assembly comprises a chassis bracket 7, a transmission case 5 and crawler belt assemblies at two sides, wherein the crawler belt assemblies comprise crawler belts 2, driving wheels 6, bearing wheels 8, transverse tensioning springs 3 and transverse tensioning wheels 1; the front end of chassis support (7) and track (2) is located to horizontal take-up pulley 1, and bearing wheel 8 arranges the support in the lower extreme of chassis support 7, and the rear end of chassis support 7 is located to drive wheel 6 and is connected with transmission case 5, its characterized in that: the crawler belt assembly also comprises a longitudinal tensioning supporting mechanism 4 which is vertically supported at the middle part of the chassis bracket 7; the longitudinal tensioning support mechanism 4 comprises a support seat 401, a longitudinal tensioning support wheel 402, an adjusting bolt 403, a support shaft 404 and a locking nut 405, and the longitudinal tensioning support mechanism 4 is fixedly supported on the chassis bracket 7 by the support seat 401.
The support seat 401 is provided with a U-shaped long groove B for the support shaft 404 to move up and down, and the longitudinal tensioning support wheel 402 is supported on the support shaft 404 through a bearing; the two ends of the supporting shaft 404 are supported on the supporting seat 401 by the adjusting bolts 403 and can move up and down in the U-shaped long groove B of the supporting seat 401 to drive the longitudinal tensioning supporting wheel 402 to move up and down longitudinally.
The shaft bodies at the two ends of the supporting shaft 404 are provided with a tangent plane A for fixing the locking nut 405.
Compared with the prior art, the utility model has the advantages that: the universal chassis is provided with the transverse tensioning mechanism and the longitudinal tensioning mechanism, so that the tensioning of the crawler belt can be adjusted according to actual conditions; secondly, the supporting wheel which is longitudinally fixed in the past is changed into a longitudinal tensioning mechanism, so that the situation that the crawler belt cannot be supported due to the fact that welding positions are not aligned is avoided; thirdly, simple structure and practicality are strong.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the longitudinal tension supporting mechanism 4 in fig. 1;
fig. 3 is a section A-A of fig. 2.
Reference numerals in the drawings: 1-a transverse tensioning wheel; 2-caterpillar tracks; 3-a transverse tension spring; 4-a longitudinal tensioning support mechanism; 401-a supporting seat; 402-longitudinal tensioning support wheels; 403-adjusting bolts; 404-supporting a shaft; 405-locking nut; 5-a transmission case; 6-driving wheels; 7-bearing wheels. A-section, B-U-shaped long groove.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
The utility model relates to a universal power chassis with longitudinal and transverse bidirectional tensioning, which can carry out longitudinal and transverse bidirectional tensioning on a track. The crawler belt assembly mainly comprises a chassis bracket 7, a transmission case 5 and crawler belt assemblies on two sides, wherein the crawler belt assemblies comprise crawler belts 2, driving wheels 6, bearing wheels 8, a transverse tensioning mechanism and a longitudinal tensioning supporting mechanism 4.
The transverse tensioning mechanism mainly comprises a transverse tensioning spring 3 and a transverse tensioning wheel 1, wherein the transverse tensioning wheel 1 is arranged at the front ends of a chassis bracket 7 and a crawler belt 2 and is mainly used for transversely tensioning the crawler belt. The bearing wheels 8 are arranged and supported at the lower end of the chassis bracket 7, and the driving wheels 6 are arranged at the rear end of the chassis bracket 7 and are connected with the transmission case 5.
The longitudinal tensioning support mechanism 4 is vertically supported at the middle part of the chassis support 7, and mainly comprises a support seat 401, a longitudinal tensioning support wheel 402, an adjusting bolt 403, a support shaft 404 and a locking nut 405, and is fixedly supported on the chassis support 7 by the support seat 401, and is mainly used for tensioning or supporting the middle part of the crawler belt 2 in the vertical direction.
The support seat 401 is provided with a U-shaped long groove B for the support shaft 404 to move up and down, and the longitudinal tensioning support wheel 402 is supported on the support shaft 404 through a bearing; the two ends of the supporting shaft 404 are supported on the supporting seat 401 by the adjusting bolts 403 and can move up and down in the U-shaped long groove B of the supporting seat 401 to drive the longitudinal tensioning supporting wheel 402 to move up and down longitudinally.
The shaft bodies at the two ends of the supporting shaft 404 are provided with a tangent plane A for fixing the locking nut 405.
Claims (3)
1. The crawler-type universal power chassis capable of being tensioned bidirectionally comprises a chassis bracket (7), a transmission case (5) and crawler assemblies on two sides, wherein each crawler assembly comprises a crawler (2), a driving wheel (6), a bearing wheel (8), a transverse tensioning spring (3) and a transverse tensioning wheel (1); the front end of chassis support (7) and track (2) is located in horizontal take-up pulley (1), and bearing wheel (8) are arranged and are supported in the lower extreme of chassis support (7), and the rear end of chassis support (7) is located in drive wheel (6) and are connected with transmission case (5), its characterized in that: the crawler belt assembly further comprises a longitudinal tensioning supporting mechanism (4) which is vertically supported at the middle part of the chassis bracket (7); the longitudinal tensioning support mechanism (4) comprises a support seat (401), a longitudinal tensioning support wheel (402), an adjusting bolt (403), a support shaft (404) and a locking nut (405), and the longitudinal tensioning support mechanism (4) is fixedly supported on the chassis support (7) through the support seat (401).
2. A bi-tensionable tracked universal power chassis according to claim 1, wherein: the support seat (401) is provided with a U-shaped long groove B for the support shaft (404) to move up and down, and the longitudinal tensioning support wheel (402) is supported on the support shaft (404) through a bearing; the two ends of the supporting shaft (404) are supported on the supporting seat (401) by the adjusting bolts (403) and can move up and down in the U-shaped long groove B of the supporting seat (401) so as to drive the longitudinal tensioning supporting wheel (402) to move up and down longitudinally.
3. A bi-tensionable tracked universal power chassis according to claim 2, wherein: the two end shaft bodies of the supporting shaft (404) are provided with a tangent plane A for fixing the locking nut (405).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222871656.3U CN218929632U (en) | 2022-10-31 | 2022-10-31 | Crawler-type universal power chassis capable of being tensioned bidirectionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222871656.3U CN218929632U (en) | 2022-10-31 | 2022-10-31 | Crawler-type universal power chassis capable of being tensioned bidirectionally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218929632U true CN218929632U (en) | 2023-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222871656.3U Active CN218929632U (en) | 2022-10-31 | 2022-10-31 | Crawler-type universal power chassis capable of being tensioned bidirectionally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218929632U (en) |
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2022
- 2022-10-31 CN CN202222871656.3U patent/CN218929632U/en active Active
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