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Three-planet-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor

A continuously variable transmission, hydraulic machinery technology, applied in mechanical equipment, motor vehicles, fluid transmission devices, etc., can solve the problem of not having a speed regulation range, unable to meet various operating modes of high-power tractors, and asymmetrical speed ratio changes. To meet the needs of low-speed and high-load operations, a wide range of stepless speed regulation, and large torque output

Active Publication Date: 2022-02-08
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0002] The current high-power tractor three-stage three-stage hydraulic-mechanical continuously variable transmission has no symmetry in the speed ratio changes between the forward stage and the reverse stage, and does not have the same speed regulation range, which cannot meet the various operating modes of high-power tractors.

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  • Three-planet-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor
  • Three-planet-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor
  • Three-planet-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] refer to figure 1 , a three-planetary three-stage hydromechanical continuously variable transmission for high-power tractors, including a variable pump-variable motor system 1, a clutch system 2, a converging mechanism 3, a gear pair 4 and a shaft system 5, and a variable pump-variable motor system The system 1 includes a variable displacement pump 11 and a variable displacement motor 12, the variable displacement pump 11 is connected with the variable ...

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Abstract

The invention discloses a three-planet-row three-section type hydraulic mechanical continuously variable transmission of a high-power tractor. The three-planet-row three-section type hydraulic mechanical continuously variable transmission comprises a variable pump-variable motor system, a clutch system, a confluence mechanism, a gear pair and a shaft system, wherein the variable pump-variable motor system comprises a variable pump and a variable motor, and the variable pump is connected with the variable motor; and the clutch system comprises a clutch C1, a clutch C2, a clutch C3, a clutch CV and a clutch CR, the clutch C1 is connected with the clutch C2, the clutch C3 is connected with the clutch C1, and the clutch CV is connected with the clutch CR. According to the three-planet-row three-section type hydraulic mechanical continuously variable transmission of a high-power tractor, a forward section and a backward section have the same speed regulation characteristic; hydraulic power is driven in a variable pump-variable motor mode; and meanwhile, the three-planet-row three-section type hydraulic mechanical continuously variable transmission has the advantages of being wide in speed regulation range, low in speed, large in torque and the like.

Description

technical field [0001] The invention relates to the technical field of high-power tractors, in particular to a three-planetary three-stage hydraulic-mechanical continuously variable transmission for high-power tractors. Background technique [0002] The current high-power tractor three-plane row three-stage hydromechanical continuously variable transmission has no symmetry in the speed ratio changes between the forward and reverse stages, does not have the same speed regulation range, and cannot meet the various operating modes of high-power tractors. . Contents of the invention [0003] The object of the present invention is to provide a three-planetary three-stage hydraulic-mechanical continuously variable transmission for a high-power tractor. It has the characteristics of wide speed regulation range, low speed and high torque, etc., to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present in...

Claims

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Application Information

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IPC IPC(8): F16H47/04
CPCF16H47/04Y02T10/62
Inventor 鲁植雄周华栋张海军钱进肖茂华陆凯陈元孙晓旭钱煜
Owner NANJING AGRICULTURAL UNIVERSITY
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