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Push and press gear

A gear and key tooth technology, applied in the field of large excavator gears in open-pit mines, can solve the problems of high processing and heat treatment costs, difficult processing and heat treatment of push gears, and failure to meet quality requirements, and achieve simplified heat treatment methods and clever design. , cost saving effect

Pending Publication Date: 2018-08-10
BEIJING DASHENG GEER METALLURGICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a push gear, which improves the processing efficiency and quality, simplifies the heat treatment method, can save 20-40% of the cost, and overcomes the difficulties and difficulties in processing and heat treatment of the push gear. to the quality requirements, high processing and heat treatment costs

Method used

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  • Push and press gear
  • Push and press gear
  • Push and press gear

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A pushing gear, including a gear 1, a flange 2, and a bolt 3,

[0029] The inner hole of the flange 2 is a two-layer stepped hole, which is divided into a spline hole 21 and a support hole 22 from large to small; the spline hole 21 is evenly distributed along the circumference with several keys protruding into the hole Teeth 211, key grooves 212 are formed between the key teeth 211, countersunk screw holes 23 are respectively provided on the walls of the support hole 22 corresponding to several key grooves 212;

[0030] On the sidewalls of both axial ends of the gear 1, a stepped step 14 and a corresponding key tooth 11 are provided corresponding to the two-layer stepped hole of the flange flange 2, and the key tooth 11 is provided with a corresponding countersunk head. The screw hole 12 of the screw hole 23, the flange flange 2 is respectively installed at both ends of the gear 1, the step 14 of the two-layer stepped hole is fitted, and the key teeth 211 are embedded i...

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Abstract

The invention discloses a push and press gear. The push and press gear comprises a gear, main flanges and bolts, and flange inner holes are two layers of stepped holes which comprise spline holes fromlarge to small and supported holes. A plurality of key teeth protruding into the spline holes are uniformly distributed in the circumferences of the spline holes, key slots are formed between the keyteeth, and countersunk screw holes are separately formed in the positions which supported hole walls correspond to the multiple key slots. Ladder steps and corresponding key teeth I which correspondto the two layers of stepped holes of the flange inner holes are arranged on the side walls of the two axial end surfaces of the gear, and screw holes corresponding to the countersunk screw holes areformed in the key teeth I. Flange flanges are separately installed at the two ends of the gear, the ladder steps of the two layers of stepped holes are inlaid, the key teeth are inlaid into tooth grooves at the root of the gear, and the key slots and the key teeth are inlaid. The flange flanges are connected with splines of the gear and are fixed by the bolts passing through the countersunk screwholes and the screws. According to the push and press gear, the machining efficiency and quality are improved, a heat treatment method is simplified, and 20-40% cost can be saved.

Description

technical field [0001] The invention relates to a large excavator gear in an open-pit mine, in particular to a pushing gear. Background technique [0002] The push gears of the existing large excavators on the market are all integral alloy forgings, and there is a section of convex circular flange at each axial end, so that the tooth grooves of the gears form a semi-closed shielding structure, which is very important for the processing and heat treatment of the push gear teeth. For the difficulty, the cost of machining and heat treatment is higher. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a push gear, which improves the processing efficiency and quality, simplifies the heat treatment method, can save 20-40% of the cost, and overcomes the difficulties and difficulties in processing and heat treatment of the push gear. To the quality requirements, high processing and heat treatment costs. [0004] The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H55/12
CPCF16H55/12F16H55/17
Inventor 王庆龄
Owner BEIJING DASHENG GEER METALLURGICAL EQUIP CO LTD
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