Power shift gear box applied to engineering machinery

A technology for power shifting and construction machinery, which is applied in the field of shifting gearboxes and power shifting gearboxes. It can solve the problems of increased complexity and processing difficulty, more meshing pairs of transmission gears, and increased manufacturing and maintenance costs. Achieve the effect of improving power utilization, less parts involved in transmission, and reducing manufacturing cost

Active Publication Date: 2013-06-19
QINGDAO LOVOL EXCAVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The above two kinds of transmission gears have many meshing pairs and many parts involved in the transmission. At the same time, both transmissions have eight shafts and six clutches, which will inevitably lead to a decrease in transmission efficiency, an increase in temperature rise, and increased wear and tear of parts, and manufacturing and maintenance costs. Increase
The two transmissions use a single-acting clutch, which increases the number of shafts and the number of mounting holes for the shafts on the box body, which increases the complexity and processing difficulty of the box, and increases the cost
[0004] The Chinese utility model patent with th

Method used

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  • Power shift gear box applied to engineering machinery

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Embodiment Construction

[0046] Examples such as figure 1 As shown, a power shift gearbox suitable for engineering machinery includes an input shaft 3 and an output shaft 16. One end of the input shaft 3 is connected to a torque converter 1. Between the input shaft 3 and the output shaft 16 The power transmission is carried out through three power transmission units. The three power transmission units include: the first intermediate shaft 5, which is connected to the input shaft 3; the third intermediate shaft 13, which is connected to the output shaft 16; the second intermediate shaft 21, which is connected to the input shaft 3 and the first intermediate shaft 5. The third intermediate shaft 13 is respectively connected by transmission.

[0047] The first fixed gear 2 and the second fixed gear 4 are fixedly connected to the input shaft, and the seventh fixed gear 15 is fixedly connected to the output shaft.

[0048] The first intermediate shaft 5 , the second intermediate shaft 21 and the third interm

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Abstract

The invention discloses a power shift gear box applied to engineering machinery. The power shift gear box comprises an input shaft and an output shaft, and power transmission is conducted between the input shaft and the output shaft through three power transmission units. According to the power shift gear box, five transmission shafts are adopted, the total number of gears on each shaft is fourteen, the structure is simple, the pair number of the transmission gears is small, the number of parts participating into transmission is small, all forward gears output power through meshing of four pairs of gears, all backward gears output power through meshing of three pairs of gears, and therefore transmission efficiency is high. The number of the shafts is reduced, the structure of a box body is simple and manufacturing cost is reduced due to adoption of a double-acting clutch. Meanwhile, the gear box can adopt six forward gears and three backward gears, power utilization rate of an engine and acceleration performance of an automobile are improved, and the power shift gear box is suitable for being matched with a three-element torque converter which is high in transmission efficiency.

Description

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Claims

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Application Information

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Owner QINGDAO LOVOL EXCAVATOR
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