CN201262224Y

CN201262224Y - Reinforced light 5-gear transmission

Info

Publication number: CN201262224Y
Application number: CNU2008202005739U
Authority: CN
Inventors: 罗元月; 王炳基; 邓帮贵; 文晓勤; 王跃生; 祝海燕
Original assignee: SHAOGUAN HONGDA GEAR CO Ltd
Current assignee: SHAOGUAN HONGDA GEAR CO Ltd
Priority date: 2008-09-11
Filing date: 2008-09-11
Publication date: 2009-06-24
Anticipated expiration: 2018-09-11

Abstract

The utility model relates to a strengthened light five-gear gearbox, which comprises a box body. The length of the box body is 343mm; an input shaft base, a main shaft base and an auxiliary shaft base are respectively arranged on the box body; an input shaft, a main shaft and an auxiliary shaft are respectively mounted in the shaft bases; the center distance between the input shaft and the auxiliary shaft is 113mm; the length of the gearbox is set to 343mm; and the center distance between the input shaft and the auxiliary shaft is set to 113mm. Therefore, the gearbox has smaller and more compact volume, and can improve installation performance of the gearbox in a vehicle. Gears adopt a design for thin and high teeth; and meanwhile, the design for the gears and the shafts is also strengthened, so that the transmission performance and the output torque of the gearbox are improved. The utility model has the characteristics of compact structure, multiple gears, low energy consumption, strong carrying capacity, and wide allocation range of the vehicles.

Description

Strengthen light-duty five retaining gearboxes

[technical field]

The utility model relates to a kind of automobile gearbox, especially relates to the light-duty five retaining gearboxes of reinforcement that a kind of light truck and middle bus are used.

[background technique]

At present, because the overall structure of light truck and middle bus is less, so each arrangement of components space is limited, wherein gearbox configuration, fitness for purpose gearbox length should be between 400mm to 500mm, and the length of existing gearbox is all more than 400mm, in addition, because the centre distance between input shaft and the countershaft is big, thus cause the gearbox volume big, thereby be difficult to satisfy the needs that dispose with light truck and middle bus.

[model utility content]

In order to overcome the above-mentioned shortcoming of prior art, the utility model provides that a kind of volume is little, bearing capacity is strong, the light-duty five retaining gearboxes of reinforcement applied widely and that operating noise is low.

The technological method that its technical problem that solves the utility model adopts is: the light-duty five retaining gearboxes of a kind of reinforcement, comprise casing, and the length of described casing is 343mm; Be respectively equipped with input axle bed, main shaft seat and countershaft seat on this casing, input shaft, main shaft and countershaft are housed respectively in said axle seat, the centre distance between described input shaft and the countershaft is 113mm.

The inner of described input shaft links by main shaft supporting hole and main shaft head end, and this main shaft head end to tail end is set with four retaining gears, four or five retaining synchronizers, second gears, three retaining gears, two or three retaining synchronizers, first gear, reverse gear and the retaining sliding gear collar that reverses gear successively; Between this main shaft and each the retaining gear needle bearing is housed; Above-mentioned each synchronizer and one keeps off the sliding gear collar that reverses gear and links to each other with the loam cake declutch shift shaft by corresponding shift fork respectively, wherein declutch shift shaft links by chute and the gear shift fork that is installed in top cover, described countershaft head end to tail end is equipped with five retaining teeth, four retaining teeth, three retaining teeth, two retaining teeth, retaining tooth and the tooth that reverses gear successively, is set with the duplex idle pulley that reverses gear by idle shaft on the corresponding position of tooth and casing of reversing gear.

Tooth on described each gear is thin and tall tooth.

Described synchronizer is a block type synchronization device.

On the described main shaft one to five the retaining gear respectively with countershaft on corresponding tooth be meshed.

On the described main shaft on reverse gear and the idle shaft duplex idle pulley that reverses gear be meshed.

The reverse gear tooth that reverses gear on idle pulley and the countershaft of duplex is meshed on the described idle shaft.

The beneficial effects of the utility model are: gearbox length is made as 343mm, centre distance between input shaft and the countershaft is made as 113mm, make the volume of gearbox less and comparatively compact, and can improve its installation capability in vehicle, gear adopts thin and tall tooth design, also strengthen design simultaneously, its transmission performance and output torque are improved gear, axle.The utlity model has the strong and wide characteristics of vehicle configuration scope of compact structure, bearing capacity.

[description of drawings]

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

Among the figure: 1-casing, 2-loam cake, 3-top cover, 4-input shaft, the 5-main shaft, 6-countershaft, 7-four retaining gears, 8-three retaining gears, the 9-second gear, 10-first gear, 11-reverse gear, 12-four or five retaining synchronizers, 13-two or three retaining synchronizers, 14-one keeps off the sliding gear collar that reverses gear, 15-shift fork, 16-declutch shift shaft, 17-five retaining teeth, 18-four retaining teeth, 19-three retaining teeth, 20-two retaining teeth, 21-one retaining tooth, the 22-tooth that reverses gear, 23-idle shaft, the 24-duplex idle pulley that reverses gear.

[embodiment]

Below in conjunction with drawings and Examples the utility model is further specified:

Referring to Fig. 1, the light-duty five retaining gearboxes of a kind of reinforcement, comprise casing 1, in order to reach the purpose of compact structure, this casing 1 Design of length is 343mm, be respectively equipped with the input axle bed on the casing 1 in the present embodiment, main shaft seat and countershaft seat are equipped with corresponding input shaft 4 respectively in each axle bed, main shaft 5 and countershaft 6, wherein the centre distance between input shaft 4 and the countershaft 6 is key points in design of the present utility model, centre distance between input shaft 4 and the countershaft 6 is 113mm in the present embodiment, be provided with main shaft 5 bearing hole in the inner of above-mentioned input shaft 4, the inner of described input shaft links by main shaft 5 bearing hole and main shaft 5 head ends, be set with four retaining gears 7 successively from main shaft 5 head ends to tail end, four or five retaining synchronizers 12, second gear 9, three retaining gears 8, two or three retaining synchronizers 13, first gear 10, reverse gear 11, keeps off the sliding gear collar 14 that reverses gear; Wherein between main shaft 5 and each the retaining gear needle bearing is housed, above-mentioned each synchronizer and one keeps off the sliding gear collar 14 that reverses gear and links to each other with loam cake 2 declutch shift shafts 16 by corresponding shift fork 15 respectively, wherein declutch shift shaft 16 links by chute and the gear shift fork that is installed in top cover 3, at described countershaft 6 head ends to tail end five retaining teeth 17 are installed successively, four retaining teeth 18, three retaining teeth 19, two retaining teeth 20, the one retaining tooth 21 and the tooth 22 that reverses gear, on reverse gear tooth 22 and casing 1 corresponding position, be set with the duplex idle pulley 24 that reverses gear by idle shaft 23, wherein on the main shaft 5 one to five retaining gear respectively with countershaft 6 on corresponding tooth be meshed, on the main shaft 5 on reverse gear 10 and the idle shaft 23 the duplex idle pulley 24 that reverses gear be meshed; The duplex idle pulley 24 that reverses gear is meshed with the tooth that reverses gear on middle 6 on the idle shaft 23, and the tooth on above-mentioned each gear is thin and tall tooth design, and countershaft 6 adopts optical axis hot pressing packing technique with tooth on the countershaft 6.The utlity model has the strong and characteristics wide of compact structure, bearing capacity with the vehicle configuration scope.

Claims

1, the light-duty five retaining gearboxes of a kind of reinforcement comprise casing, and it is characterized in that: the length of described casing is 343mm; Be respectively equipped with input axle bed, main shaft seat and countershaft seat on this casing, input shaft, main shaft and countershaft are housed respectively in said axle seat, the centre distance between described input shaft and the countershaft is 113mm.

2, the light-duty five retaining gearboxes of reinforcement as claimed in claim 1, it is characterized in that: the inner of described input shaft links by main shaft supporting hole and main shaft head end, and this main shaft head end to tail end is set with four retaining gears, four or five retaining synchronizers, second gears, three retaining gears, two or three retaining synchronizers, first gear, reverse gear and the retaining sliding gear collar that reverses gear successively; Between this main shaft and each the retaining gear needle bearing is housed; Above-mentioned each synchronizer and one keeps off the sliding gear collar that reverses gear and links to each other with the loam cake declutch shift shaft by corresponding shift fork respectively, wherein declutch shift shaft links by chute and the gear shift fork that is installed in top cover, described countershaft head end to tail end is equipped with five retaining teeth, four retaining teeth, three retaining teeth, two retaining teeth, retaining tooth and the tooth that reverses gear successively, is set with the duplex idle pulley that reverses gear by idle shaft on the corresponding position of tooth and casing of reversing gear.

3, the light-duty five retaining gearboxes of reinforcement as claimed in claim 2, it is characterized in that: the tooth on described each gear is thin and tall tooth.

4, the light-duty five retaining gearboxes of reinforcement as claimed in claim 2, it is characterized in that: described synchronizer is a block type synchronization device.

5, reinforcement as claimed in claim 1 or 2 light-duty five the retaining gearboxes, it is characterized in that: on the described main shaft one to five the retaining gear respectively with countershaft on corresponding tooth be meshed.

6, the light-duty five retaining gearboxes of reinforcement as claimed in claim 1 or 2 is characterized in that: on the described main shaft on reverse gear and the idle shaft duplex idle pulley that reverses gear be meshed.

7, the light-duty five retaining gearboxes of reinforcement as claimed in claim 2 is characterized in that: the reverse gear tooth that reverses gear on idle pulley and the countershaft of duplex is meshed on the described idle shaft.