CN202789530U - Camshaft rear-end drive gear - Google Patents

Abstract

The utility model discloses a camshaft rear-end drive gear which comprises a gear disc, wherein the gear disc is provided with a flawless surface and subjected to rust-proof treatment, a plurality of gear teeth are respectively arranged around the circumferential edge of the gear disc, a tooth space is formed between two adjacent gear teeth, and the two sides of the bottom of the tooth space are respectively provided with an arc chamfer; and the middle part of the gear disc is provided with a through hole, multiple sets of hole circles are respectively arranged on the gear disc and around the through hole from inside to outside, and each hole circle is respectively composed of open holes which are radially distributed around the through hole. The drive gear disclosed by the utility model is compact in structure, high in precision, and high in performance-price ratio; the drive gear is assembled in cooperation with a drive shaft and arranged in an air compressor, and rotates in an air cylinder in coordination with a screw, thereby ensuring the normal operation of the air compressor; and the drive gear is small to vibrate, low in noise and stable to rotate rotation in the process of running.

Description

Camshaft rear end actuation gear

Technical field

The utility model relates to the part field of air compressor, specifically a kind of camshaft rear end actuation gear.

Background technique

Air compressor is called for short air compressor, is the main body in the compressed air source unit, and it is the device that the mechanical energy of prime mover (normally motor) is converted to the gas pressure energy, is compressed-air actuated pressure generator.

Gear is the inner common gearing parts of air compressor.The camshaft rear end actuation gear of existing air compressor mounted inside vibrates larger in the course of the work, produces a large amount of noises when causing work, for a long time can be so that the wearing and tearing between the gear be larger, and transmission occurs loosening, thereby has influence on the normal operation of air compressor.

The model utility content

The purpose of this utility model provides a kind of camshaft rear end actuation gear, with the live axle assembling, and is contained in the air compressor, is engaged in the cylinder with screw rod and rotates, to guarantee the normal operation of air compressor.

The technical solution of the utility model is as follows:

A kind of camshaft rear end actuation gear, include by surperficial zero defect and carry out antirust processing wheel disc, edge, surrounding around wheel disc has a plurality of gear teeth respectively, and it is characterized in that: have teeth groove between adjacent two gear teeth, the both sides of described teeth groove bottom land are respectively equipped with arc angling; The middle part of described wheel disc is provided with through hole, is respectively equipped with from inside to outside many groups holes circle on the wheel disc around the through hole, and every group of hole circle comprises respectively by a plurality of perforates that are distributed in radially around the through hole and forming.

Described camshaft rear end actuation gear is characterized in that: in the circle of described many groups hole, be positioned at the most inboard hole circle and include four perforates, be positioned at outermost hole circle and include eight perforates.

The beneficial effects of the utility model:

The utility model compact structure, precision is high, and cost performance is high, with the live axle assembling, and is contained in the air compressor, is engaged in the cylinder with screw rod and rotates, and has guaranteed the normal operation of air compressor, and vibration is little during work, and noise is low, and transmission is stable.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the sectional view of the utility model structure.

Fig. 3 is the enlarged diagram of the utility model I part-structure.

Embodiment

Referring to accompanying drawing, a kind of camshaft rear end actuation gear includes by surperficial zero defect and carries out antirust processing wheel disc 1, around the surrounding of wheel disc 1 along having respectively a plurality of gear teeth 2, have teeth groove 3 between adjacent two gear teeth, the both sides of teeth groove 3 bottom lands are respectively equipped with arc angling 4; The middle part of wheel disc 1 is provided with through hole 5, is respectively equipped with from inside to outside many groups holes circle on the wheel disc around the through hole 5, and every group of hole circle comprises respectively by a plurality of perforates 6 that are distributed in radially around the through hole and forming.

In the utility model, organize in the circle of hole more, be positioned at the most inboard hole circle and include four perforates, be positioned at outermost hole circle and include eight perforates.

Claims (2)

1. camshaft rear end actuation gear, include by surperficial zero defect and carry out antirust processing wheel disc, edge, surrounding around wheel disc has a plurality of gear teeth respectively, and it is characterized in that: have teeth groove between adjacent two gear teeth, the both sides of described teeth groove bottom land are respectively equipped with arc angling; The middle part of described wheel disc is provided with through hole, is respectively equipped with from inside to outside many groups holes circle on the wheel disc around the through hole, and every group of hole circle comprises respectively by a plurality of perforates that are distributed in radially around the through hole and forming.

2. camshaft according to claim 1 rear end actuation gear is characterized in that: in the circle of described many groups hole, be positioned at the most inboard hole circle and include four perforates, be positioned at outermost hole circle and include eight perforates.

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