SU23047A1 - Gearbox - Google Patents

Description

The invention relates to speed boxes consisting of a system that is constantly

fixed, loosely fitting cylindrical gears, included on shafts

by cam clutches.

In the proposed gearbox, pairwise paired initial and final gears can alternately be switched to shafts for possible use of each of the gear ratios in both forward and inverse ratios.

The drawing shows a vertical axial section of the gearbox.

The proposed gear box consists of eight freely fitting cylindrical gears arranged in pairs (1-2, 3-4, 5-6, 7-8). Gears form between the master (38) and the slave shaft (39) located concentrically inside it, two gears, successively operated by means of a transfer roller.

Of these eight gears, 1-2 and 3-4, are located on the gear shaft 29, and the gears 5-6, 7-8 on the lead 38, with the initial and final loops (5 6 and 7-8), paired in pairs, may be included alternately on the drive shaft of the driven shaft, so that each gear ratio is used in the forward and reverse ratios.

This engagement of the initial and final gears of the transmission is carried out using cam clutches of a well-known construction, located on the drive shaft (10, 11) and the follower (9, 12). The couplings are provided with sliding shims 34, connected with each other by rods 35 and 37, which pass through nMcrouHecH to the gear holes and are designed for simultaneous axial movement of the couplings during gear shifting 5-6, 7-8.

The gearbox drive shaft 38 receives movement from a tightly fixed chain gear 36 on it. The gears of the transfer axle 29 are turned on using a conventional device of cam clutches 13, 14, and 15, 16.

The subject matter of the invention.

1. A box of speeds consisting of a system of permanently coupled free-sitting cylindrical gears forming between the drive and inside it concentric with the driven shafts, through gear, roller, two successive gears, with gears on the respective shafts using cam clutches , characterized in that the initial. and the final gears {5, 6 and 7, 8) of the gears are pairwise paired to the driving (33) or driven (39) shafts, as a result of which each gear ratio is used in direct and inverse ratios.

2. The form of the gearbox device described in section 1, characterized in that the paired free-running initial and final gears of the transmission (5, b 7 7, 8) are located at the ends of the drive shaft (38),

inside what passes the driven shaft (39).

3. The form of execution of the velocity gear box device described in paragraph 1 is different in that the cam doufs (10 and 11) of the drive shaft and (9, 12) of the driven shafts have sliding washers (34) connected to each other in ring sharpening rods passing through holes in gears (35 and 37) for the purpose of simultaneous axial movement of the clutch during gear shifting (5, b and 7, 8).

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