CN201125999Y - Gear - Google Patents

Abstract

The invention relates to a gear wheel in a transmission device, concretely to a gear wheel staggeredly assembled by a plurality of straight tooth gear wheels, which includes a gear wheel shaft and a key. The characteristic of the gear is that: a plurality of straight gear wheel sheet are mounted on the gear wheel shaft by the key, the straight gear wheel sheet sequentially rotates along axial direction, and teeth between adjacent straight gear wheel sheet are mutually staggered. The gear of the present invention differentiates an inclined gear wheel and herringbone gear wheel to a combination of limit straight gear wheel sheet by ''differential'' and has advantages of low processing coat, stable transmission, higher engagement factor, strong load-bearing capacity and no axial force during transmission.

Description

A kind of gear

Technical field:

The utility model relates to the gear in the transmission device, specifically by the staggered a kind of gear that is assembled into of multi-disc straight-tooth gear.

Background technique:

As everyone knows, gear is the vitals in the transmission device, gear divides straight-tooth gear, angular gear and man type gear multiple, advantage such as that straight-tooth gear has is easy to process, cost of production is low, but its contact ratio is lower, the transmission continuity is relatively poor, bearing capacity is poor, angular gear stable drive, contact ratio are higher, but produce axial force in its processing cost height, the transmission, man type gear stable drive, contact ratio is higher, bearing capacity is strong, do not produce axial force in the transmission, but the processing cost height.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of gear that provide stable drive, contact ratio is higher, bearing capacity is strong, do not produce axial force in the transmission, processing cost is low.

The utility model can reach by following measure:

A kind of gear comprises gear shaft, key, it is characterized in that being installed on the gear shaft through key by a plurality of spur gear sheets, and the spur gear sheet is successively around axial rotation, and the tooth between adjacent straight gear sheet is interlaced.

The utility model is divided into combination by limited spur gear sheet to helical gear, double helical spurgear with the thought of " differential ", has that processing cost is low, stable drive, contact ratio is higher, bearing capacity is strong, do not produce advantages such as axial force in the transmission.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the axial schematic representation of adjacent two spur gear sheets.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described:

As shown in drawings, a kind of gear, comprise gear shaft 1, key 2, the spur gear sheet is by forming more than 2 or 2, as shown in Figure 1 by three spur gear sheets 3,4,5 form, three spur gear sheets 3,4,5 are installed on the gear shaft 1 through key 2, spur gear sheet 3,4,5 successively around axial rotation, tooth between adjacent straight gear sheet is interlaced, as shown in Figure 2, the utility model with the thought of " differential " helical gear, double helical spurgear is divided into the combination by limited spur gear sheet, has low processing cost, stable drive, contact ratio is higher, bearing capacity is strong, do not produce advantages such as axial force in the transmission.

Claims (1)

1, a kind of gear comprises gear shaft, key, it is characterized in that being installed on the gear shaft through key by a plurality of spur gear sheets, and the spur gear sheet is successively around axial rotation, and the tooth between adjacent straight gear sheet is interlaced.

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