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Multi-gear gearbox

A gearbox and clutch technology, applied in vehicle gearboxes, multi-ratio transmissions, gear transmissions, etc., can solve problems such as not being able to meet gear and speed ratio requirements

Active Publication Date: 2021-09-10
JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For special machinery such as heavy-duty vehicles, drilling rigs, motor graders, and off-road tire cranes, more gears and larger speed ratio ranges are required to meet the needs of different working conditions. The current technical solutions cannot meet the requirements of gears and speed ratios.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0071] Such as figure 1 As shown, the multi-speed gearbox of this embodiment includes an input shaft S-in, an intermediate shaft S-1 to an intermediate shaft S-5, and an output shaft S-out, wherein:

[0072] The input shaft S-in is provided with a fixed gear Z4 and a fixed gear Z5,

[0073] The intermediate shaft S-1 is provided with a fixed gear Z3, a floating gear Z1 installed through a clutch C1, and a floating gear Z2 installed through a clutch C2,

[0074] The intermediate shaft S-2 is provided with a fixed gear Z8, a floating gear Z6 installed through a clutch C3, and a floating gear Z7 installed through a clutch C4,

[0075] The intermediate shaft S-3 is provided with a fixed gear Z9, a floating gear Z10 installed through a clutch C5, and a floating gear Z11 installed through a clutch C6,

[0076] The intermediate shaft S-4 is provided with a fixed gear Z12 and a fixed gear Z13,

[0077] The intermediate shaft S-5 is provided with a fixed gear Z16,

[0078] The outp...

Embodiment 2

[0099] Such as figure 2 As shown, on the basis of the structure of the first embodiment above, the multi-speed gearbox of this embodiment adds a fixed gear Z17 on the intermediate shaft S-5, the fixed gear Z17 meshes with the floating gear Z2, and the fixed gear Z17 meshes with the floating gear Z2. The gear Z17 meshes with the fixed gear Z5, and the floating gear Z2 does not mesh with the fixed gear Z5. The gearbox realizes the mode of 8 forward gears / 8 reverse gears, wherein:

[0100] Forward 1st gear: the clutch C3, the clutch C5 and the clutch C7 are in a combined state, and the specific transmission path is: the power of the input shaft S-in sequentially passes through the fixed gear Z4, the floating gear Z6, the intermediate shaft S-2, the fixed gear Gear Z8, fixed gear Z9, intermediate shaft S-3, floating gear Z10, fixed gear Z12 and floating gear Z14 are transmitted to the output shaft S-out;

[0101] Forward 2nd gear: the clutch C3, the clutch C5 and the clutch C8 a...

Embodiment 3

[0118] Such as image 3 As shown, the multi-speed gearbox of this embodiment is based on the structure of the first embodiment above, and the clutch C4 and the corresponding floating gear Z7 on the intermediate shaft S-2 are removed, that is, the clutch C4 and the floating gear Z7 do not participate in the transmission , the gearbox realizes the mode of forward 8 gears / backward 4 gears, wherein:

[0119] Forward 1st gear: the clutch C2, the clutch C5 and the clutch C7 are in a combined state, and the specific transmission path is: the power of the input shaft S-in sequentially passes through the fixed gear Z5, the floating gear Z2, the intermediate shaft S-1, the fixed Gear Z3, fixed gear Z9, intermediate shaft S-3, floating gear Z10, fixed gear Z12 and floating gear Z14 are transmitted to the output shaft S-out;

[0120] Forward 2nd gear: the clutch C2, the clutch C5 and the clutch C8 are in a combined state, and the specific transmission path is: the power of the input shaf...

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Abstract

The invention relates to a multi-gear gearbox which adopts a structure of seven shafts and eight clutches, performs power transmission through a fixed gear and a floating gear in the middle, and can realize 12 forward gears / 4 backward gears under the structure of matching 16 gears; under the structure that a fixed gear is additionally arranged, eight forward gears / eight backward gears can be achieved; under the condition that a clutch and a corresponding floating gear structure are removed, eight forward gears / four backward gears can be achieved; and according to the multi-gear gearbox, modular design is achieved structurally, in addition, forward gears are achieved through combination of three clutches and four-time gear meshing, backward gears are achieved through combination of three clutches and five-time gear meshing, the transmission path is short, the transmission precision is high, and the requirements for different gear numbers and different speed ratios of various engineering machines can be met.

Description

technical field [0001] The invention relates to the technical field of shaft-fixed gearboxes for engineering machinery, in particular to a multi-speed gearbox. Background technique [0002] At present, the fixed-shaft gearbox used in construction machinery is suitable for machinery that requires shaft drop and front and rear power output. The structure of the gearbox is relatively simple, the design, manufacture, and maintenance are less difficult, and the user acceptance is higher. According to the layout of the clutch on the shaft, it can be divided into a single-clutch structure and a double-clutch structure. Different gears are realized by controlling the combination of different clutches. [0003] In the working process of construction machinery, in order to keep the main engine working in a better working state, the gearbox needs to have more gears. Chinese patent CN202392055U discloses a construction machinery gearbox, which uses 5 shafts, 6 clutches, 13 gears real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/093F16H57/023
CPCF16H3/093F16H57/023F16H2200/0078F16H2200/0095F16H2200/2051
Inventor 李文跃石国国吕昌
Owner JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD
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