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Herringbone-tooth planet gearbox

A technology for planetary gearboxes and planetary gears, which is applied to gear transmissions, belts/chains/gears, transmission parts, etc., can solve problems such as large axial forces and difficult axial positioning of transmission mechanisms, and achieve improved bearing capacity, Simple structure and improved contact safety factor

Inactive Publication Date: 2014-03-12
SJ PETROLEUM MACHINERY CO LTD SINOPEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the helical gear transmission will generate a large axial force, which makes the axial positioning of the transmission mechanism very difficult.

Method used

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  • Herringbone-tooth planet gearbox
  • Herringbone-tooth planet gearbox

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] see Figure 1-2 Middle: The case body 10 of the planetary gearbox is fixedly connected to the frame, the two ring gears 4 and 9 are fixedly connected to the case body 10, the three planetary gear shafts 2 are connected to the planet carrier 8, and the three adjusting pads 11 are respectively Mounted on the three planetary wheel shafts 2, the three planetary wheels 3 are respectively installed on the three planetary wheel shafts 2 through three rolling bearings 6, and the adjustment pad 11 can be accurately adjusted according to the actual force of the planetary wheel 3 during operation during assembly The axial position of the planetary gear 3 achieves the purpose of uniform load of the three planetary gears 3, the center gear 1 is in the middle of the planetary gearbox 12, one end of the center gear 1 is the input end, and the tooth sleeve 7 is at the output end of the planetary gearbox 12 And extend out of the planetary gear box 12, the sun gear 1 is floatingly connec...

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Abstract

The invention relates to a herringbone-tooth planet gearbox of a planet gear transmission device. The herringbone-tooth planet gearbox is characterized in that two inner gear rings are fixed on a box body of the planet gearbox; three adjusting pads are respectively arranged on three planet gear shafts; the planet gear shafts are arranged on a planet carrier; three planet gears are respectively arranged on the planet gear shafts through bearings; a center gear is arranged in the middle of the planet gearbox, wherein one end of the center gear is an input end; a gear sleeve is connected with the planet carrier, one end, which extends out of the planet gearbox, of the gear sleeve is an output end; the planet carrier is meshed with the gear sleeve 7 through crowned teeth; the three planet gears, the center gear and the two inner gear rings are herringbone gears; the three planet wheels are meshed with the center gear and the two inner gear rings. The herringbone-tooth planet gearbox has the advantages that under the same volume, the bearing capacity of the gearbox is improved, uniform load is realized, the curved safety coefficient of the gears can be increased by 30 percent, and the contact safety coefficient is increased by 20 percent.

Description

technical field [0001] The invention relates to planetary gear transmissions. Background technique [0002] A planetary transmission is a gear transmission with a moving axis, which can be used for reduction, acceleration and differential devices. Compared with ordinary cylindrical gear transmission, planetary gear transmission has the advantages of light weight, small size, large transmission ratio and high efficiency. The disadvantage is that the structure is complex and the precision requirements are high. In order to reduce the difficulty of design, manufacture and assembly, spur gear transmission mechanisms are generally used. Straight tooth transmission does not generate axial force, but its gear overlap is low, and the transmission stability is poor. In order to meet the torque transmission capacity, the volume of the gearbox is often large. If the helical gear transmission mechanism is adopted, although the low degree of gear overlap can be solved, the stability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H57/023F16H57/08
CPCF16H1/28F16H57/023F16H57/08
Inventor 王庆群刘东庆李蓉杜木信游艇翁贵祥余旭阳张立婷胡顺孙继成杨国华
Owner SJ PETROLEUM MACHINERY CO LTD SINOPEC
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