CN2654947Y - Speed variator for motor vehicle - Google Patents

Abstract

The utility model relates to a motor vehicle speed changer, which is characterized in that: four sets of speed change gears and reverse gears are respectively arranged inside the box body through the input shaft and the output shaft; the gear shifting structure comprises a pull rod, a slide block, a pin ball and a pin rod. The utility model has the advantages of simple structure, convenient shifting and operation and high reliability.

Description

The novel automobile speed changer

Technical field

The utility model relates to vehicle transmission.

Background technique

Speed changer is a gear main in the motor vehicle powertrain, and still is unique gear on most Motor Vehicle.Speed changer makes automobile swing to usually in addition and travels, and the effect that can interrupt transmission of power under the not flame-out situation of motor.Known speed changer kind is a lot, and as manual transmission, but this type of shifting of transmission adopts shifting fork mechanism, also need to be used with synchronizer, and complex structure, the manufacture cost height, inconvenient operation, functional reliability is poor.

Summary of the invention

The utility model provides a kind of novel automobile speed changer simple in structure, easy and simple to handle.

The organization plan that solves the problems of the technologies described above is as follows:

The novel automobile speed changer comprises casing, gear-driving speed-variable mechanism and gear shift mechanism, it is characterized in that:

A, described gear-driving speed-variable mechanism form with the gear of different drive ratios output and the reverse gear of three engagement driving by four pairs, the reverse gear of three engagement driving is respectively initiatively reverse gear, driven reverse gear and break-in reverse gear, driving gear in the described gear-driving speed-variable mechanism is located on the driving shaft successively, be located in the casing by driving shaft, driven gear is located on the driven output shaft successively, be located in the casing by driven output shaft, the break-in reverse gear is located in the casing by jack shaft; Described driven output shaft is a hollow shaft;

B, described trasmission shifting system comprise pull bar, slide block, speed change pin pearl and speed change pin rod; The pull bar front end is connecting slide block, and slide block one side has pin-and-hole, and speed change pin pearl is positioned at pin-and-hole, and speed change pin pearl bottom is provided with spring; Driven output shaft one side correspondence is provided with 5 pin rod holes, in the described driven gear axis hole also correspondence be provided with axial shape groove, the speed change pin rod is positioned at the pin rod hole, speed change pin rod and speed change pin pearl corresponding end are smooth coniform projection, are arranged with spring on the speed change pin rod.

The utility model speed changer structure is simple, and five groups of speed change gears are located at respectively in the casing by input, output shaft, and speed-change and gearshift adopts pull bar to bump the pearl structure, simplifies the structure, and makes more convenient operation.Its manufacture cost reduces relatively, and functional reliability improves.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the gear drive radial cross-section.

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated by embodiment.

As seen from Figure 1, this speed changer comprises casing 17, gear-driving speed-variable mechanism and gear shift mechanism.

Gear-driving speed-variable mechanism forms with the gear of different drive ratios output and the reverse gear of three engagement driving by four pairs, and the reverse gear of three engagement driving is respectively initiatively reverse gear 6, driven reverse gear 8 and break-in reverse gear 7; One grade of input gear 9 in the gear-driving speed-variable mechanism, second gear input gear 11, third gear input gear 13 and fourth gear input gear 15 are fixedly mounted on the input shaft 1 successively, be installed in the casing 17 by input shaft 1, one grade of output gear 10, second gear output gear 12, third gear output gear 14 and fourth gear output gear 16 are fixedly mounted on the output shaft 2 successively, be installed in the casing 17 by output shaft 2, break-in reverse gear 7 is installed in the casing 17 by jack shaft; Output shaft 2 is a hollow shaft.

Trasmission shifting system comprises pull bar 3, slide block 18, speed change pin pearl 4 and speed change pin rod 5.Draw the .3 front end connecting slide block 18, slide block 18 1 sides have pin-and-hole, and speed change pin pearl 4 is positioned at pin-and-hole, and spring is equipped with in speed change pin pearl 4 bottoms; Output shaft 2 one side correspondences have 5 pin rod holes, in the output gear axis hole also correspondence have axially

The shape groove, speed change pin rod 5 is positioned at the pin rod hole, and speed change pin rod 5 is smooth coniform projection with speed change pin pearl 4 corresponding end, is set with spring on the speed change pin rod 5, sees Fig. 2.

Changing to second gear with one grade is that example is made concrete operation instruction.After motor subtracted oil, pulling speed change pull bar 3 made speed change pin pearl 4 break away from one grade of telescopic speed change pin rod 5 rod end; One grade of scalable speed change pin rod 5 is got back under the return spring effect in the output shaft 2, and be neutral gear this moment.Continue pulling pull bar 3, make speed change pin pearl 4 move to second gear speed change pin rod 5 places, the scalable speed change pin rod 5 that speed change pin pearl 4 presses down second gear stretches out outside the output shaft 2 it, then motor refuels, the scalable speed change pin rod 5 of second gear is combined by axial shape groove with output gear 13, thereby realize gear shift from one grade to second gear.The rest may be inferred for other gear-change operation.

Claims (1)

1, novel automobile speed changer comprises casing, gear-driving speed-variable mechanism and gear shift mechanism, it is characterized in that:

A, described gear-driving speed-variable mechanism form with the gear of different drive ratios output and the reverse gear of three engagement driving by four pairs, the reverse gear of three engagement driving is respectively initiatively reverse gear, driven reverse gear and break-in reverse gear, driving gear in the described gear-driving speed-variable mechanism is located on the driving shaft successively, be located in the casing by driving shaft, driven gear is located on the driven output shaft successively, be located in the casing by driven output shaft, the break-in reverse gear is located in the casing by jack shaft; Described driven output shaft is a hollow shaft;

B, described trasmission shifting system comprise pull bar, slide block, speed change pin pearl and speed change pin rod; The pull bar front end is connecting slide block, and slide block one side has pin-and-hole, and speed change pin pearl is positioned at pin-and-hole, and speed change pin pearl bottom is provided with spring; Driven output shaft one side correspondence is provided with 5 pin rod holes, in the described driven gear axis hole also correspondence be provided with axial shape groove, the speed change pin rod is positioned at the pin rod hole, speed change pin rod and speed change pin pearl corresponding end are smooth coniform projection, are arranged with spring on the speed change pin rod.

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