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Seven-gear single-box three-countershaft transmission

A technology for intermediate shafts and transmissions, which is applied in the direction of gear transmission, transmission control, gear lubrication/cooling, etc. It can solve the problem of low failure rate, achieve low failure rate, facilitate vehicle matching, and ensure the reliability of gear shifting and longevity effects

Inactive Publication Date: 2015-06-24
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for larger mining vehicles, a transmission with higher bearing capacity and low failure rate is required to meet the needs of the increasingly large mining vehicle market, and this problem needs to be resolved

Method used

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  • Seven-gear single-box three-countershaft transmission
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  • Seven-gear single-box three-countershaft transmission

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0028] Such as figure 1 As shown, the seven-speed single-box three-countershaft transmission of the present invention includes an input shaft 1 coaxially arranged front and back, a main shaft 8, three countershafts arranged in pairs around the center of the main shaft 8, and an output flange 10 in the box body 30. Main power transmission components. The input gear 3 is connected to the input shaft 1 through a spline, and is in constant mesh with the front transmission gear 4 of the three intermediate shafts; the main shaft 8 is supported on the rear end of the input shaft 1 through a roller bearing without outer ring 2, and the main shaft gear 7 is sleeved above it. They are in constant mesh with the corresponding intermediate shaft gears 5 on the three intermediate shafts respectively; the ...

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Abstract

The invention relates to a seven-gear single-box three-countershaft transmission which comprises a transmission shell, an input gear, a control system and a forced lubricating system. The transmission shell internally comprises an input shaft and a main shaft which are coaxially arranged. Three countershafts are evenly distributed around the main shaft. The control system is provided with a gear interlocking mechanism. The input gear is connected with the input shaft through a spline and is normally meshed with transmission gears at the front ends of the three countershafts. The main shaft is sleeved with a plurality of main shaft gears in a spaced mode. The main shaft gears are normally meshed with corresponding countershaft gears on the three countershafts. A gear shifting sliding sleeve is arranged between every two adjacent main shaft gears. The control system controls gear shifting forks bestriding the sliding sleeves and drives the gear shifting sliding sleeves to be meshed with the main shaft gears at different gears. The input torque of the seven-gear single-box three-countershaft transmission is 2600 Nm, and the seven-gear single-box three-countershaft transmission can be matched with a 100t mine truck, has the advantages of being high in bearing capacity, compact in structure and low in fault rate, and can meet the market requirement for increasingly large mine trucks.

Description

technical field [0001] The invention belongs to the technical field of transmissions, in particular to a seven-speed single-box three-countershaft transmission. Background technique [0002] As large and medium-sized mining enterprises invest more in environmental protection and safety production, the proportion of mining equipment purchase costs has decreased. Coupled with increasing labor costs, large-scale mining equipment is the future development trend. And the cost of adopting foreign large-scale equipment is too expensive. At present, most of the domestic large-scale mining vehicles are fully loaded with a vehicle weight of 70t. For this reason, a double countershaft transmission with an input torque of 1800Nm has been launched and has received good market feedback. However, for larger mining vehicles, a transmission with higher bearing capacity and low failure rate is required to meet the increasingly large mining vehicle market demand, and this problem remains to b...

Claims

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Application Information

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IPC IPC(8): F16H3/087F16H57/04F16H63/30
CPCF16H3/087F16H57/0412F16H57/0431F16H63/30
Inventor 张海涛高涛孙智金殷崇一刘义
Owner SHAANXI FAST GEAR CO
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