CN203516654U - Gear - Google Patents

Abstract

The utility model belongs to the field of mechanical transmission mechanisms, and particularly relates to a gear. The gear comprises a gear main body which consists of a front half gear and a rear half gear, wherein the rear half gear is higher than the front half gear, and the top faces of the front and rear half gears are located on a same plane; an axle hole is formed at the center of the gear main body; a cavity with an outward opening is formed on the front half gear; the gear main body consists of a fluted disc and a gear unit, and a transmission pin hole is formed on the fluted disc; a limiting pin hole is formed at the edge of the gear at the opening of the cavity; the cavity is internally provided with a touch mechanical switch; a guide slot for a pawl to walk is formed on the gear tooth at the opening of the cavity; a bump driving other parts is formed on the upper tooth surface of the gear main body. The bump is a circular bump which is located at the edge of the fluted disc, and the radian of the bump is matched with that of the edge of the fluted disc. The gear provided by the utility model can be used for driving in multiple directions, can be limited and self-locked, and is more precise in transmission and longer in service life.

Description

A kind of gear

Technical field

The utility model belongs to mechanical transmission mechanism field, especially relates to a kind of gear.

Background technique

Column gear transmission application is very extensive, and gear at home, through improvement and optimization for many years, form multi-series product abroad, is widely used in the industries such as metallurgy, machinery, chemical industry, building, light industry, and cylindrical gears accounts for the more than 40% of the transmission device market share.

In gear industry, self-locking cylindrical gears device occupies important position, and common self-locking cylindrical gears is by friction catch self-locking, and this kind installs quick abrasion, and service life is short; Traditional cylindrical gears is individual event transmission mode, when having the demand of multinomial transmission, is to take turns to change velocity ratio according to multiple sets of teeth, and Ci Zhong mechanism is too loaded down with trivial details, and its volume is large, and product uses poor stability.

Model utility content

The purpose of this utility model is to solve the deficiencies in the prior art part, and provide a kind of can multinomial transmission, by the gear of limit self.

The purpose of this utility model solves by following technical proposal:

A gear, is characterized in that: comprise a gear body, first half gear and later half gear, consist of, later half gear height is less than first half gear height, and the end face of first half gear and later half gear is in same plane; Gear body center is provided with axis hole; On first half gear, have opening cavity outwardly;

Described gear body is comprised of fluted disc and the gear teeth, has a transmission pin-and-hole on fluted disc; The gear teeth edge of cavity opening has a limit pin hole; In cavity, be provided with a touch-control mechanical switch; On the gear teeth of cavity opening, have a guide groove for ratchet walking;

Described gear body addendum surface is provided with the boss of a drive miscellaneous part, and described boss is arc cam, and this boss is in fluted disc edge, and boss radian matches with fluted disc edge radian.

First half gear and the later half gear of gear body described in the utility model are one-body molded.

Compared to the prior art the utlity model has following characteristics and beneficial effect:

1, change the pattern of traditional round stud wheel individual event transmission, this gear can multinomial Synchronous Transmission, compares traditional multiple sets of teeth wheel transmission, and error is less, and transmission accuracy is high.

2, this gear can limit self, avoids the wearing and tearing that cause because of friction catch self-locking, makes service life of gear longer, and whole Safety performance is higher.

3, the traditional multinomial driving gear set complete machine mechanism that compares of this gear diminishes, and saves cost, enhances productivity.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model plan structure schematic diagram.

Fig. 3 is the right TV structure schematic diagram of the utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further details.

As shown in Figure 1, Figure 3, a kind of gear, comprises a gear body 1, first half gear 2 and later half gear 3, consists of, and later half gear 3 is highly less than first half gear 2 height, and the end face of first half gear 2 and later half gear 3 is in same plane; Gear body 1 center is provided with axis hole 4; On first half gear 2, have opening cavity 5 outwardly.

As shown in Figure 1 and Figure 2, described gear body 1 is comprised of fluted disc and the gear teeth, has a transmission pin-and-hole 6 on fluted disc; The gear teeth edge of cavity 5 openings has a limit pin hole 7; In cavity 5, be provided with touch-control machinery 8 switches; On the gear teeth of cavity 5 openings, have a guide groove 9 for ratchet walking.

Described gear body 1 addendum surface is provided with the boss 10 of a drive miscellaneous part, and described boss 10 is arc cam 10, and this boss 10 is in fluted disc edge, and boss 10 radians match with fluted disc edge radian.

First half gear 2 and the later half gear 3 of gear body 1 described in the utility model are one-body molded.

When gear rotates, drive multinomial parts to complete part running simultaneously.When gear stops transmission, position limit pin meeting automatic spring, the transmission pin-and-hole 6 of dependence gear, limit pin hole 7, guide groove 9 etc. are spacing, thereby reach safety control, realize auto-lock function.Avoided the wearing and tearing that cause because of friction catch self-locking, made service life of gear longer, whole Safety performance is higher.

The utility model replaces the transmission of multiple sets of teeth wheel to increase drive station, changes traditional round stud wheel individual event transmission mode, makes the multinomial Synchronous Transmission of product, reduces gear drive error, improves transmission accuracy, reduces costs, and has improved efficiency.

Claims (2)

1. a gear, is characterized in that: comprise a gear body, first half gear and later half gear, consist of, later half gear height is less than first half gear height, and the end face of first half gear and later half gear is in same plane; Gear body center is provided with axis hole; On first half gear, have opening cavity outwardly;

Described gear body is comprised of fluted disc and the gear teeth, has a transmission pin-and-hole on fluted disc; The gear teeth edge of cavity opening has a limit pin hole; In cavity, be provided with a touch-control mechanical switch; On the gear teeth of cavity opening, have a guide groove for ratchet walking;

Described gear body addendum surface is provided with the boss of a drive miscellaneous part, and described boss is arc cam, and this boss is in fluted disc edge, and boss radian matches with fluted disc edge radian.

2. gear according to claim 1, is characterized in that: first half gear and the later half gear of described gear body are one-body molded.

Images