CN2876441Y

CN2876441Y - Speed change device for engineering self unloading car

Info

Publication number: CN2876441Y
Application number: CN 200620081776
Authority: CN
Inventors: 刘玉富; 吴伟; 葛宏坤; 马卫东; 高金宏; 彭玉兰
Original assignee: 张昊; 刘玉富
Priority date: 2006-03-14
Filing date: 2006-03-14
Publication date: 2007-03-07
Anticipated expiration: 2016-03-14

Abstract

The utility model discloses an engineering tipper-used transmission and belongs to the transmission; the structure of the utility model includes a box body, a first shaft, a second shaft, a fork shaft, an intermediate shaft and a reverse gear shaft; the first shaft and the second shaft are provided at the central part inside the box body; the fork shaft is provided above the second shaft; the reverse gear shaft and the intermediate shaft are provided under the second shaft; a reverse gear, a first gear, a second gear, a third gear, a fourth gear and a fifth gear are arranged on the second shaft from right to left; a third and fourth double-linked gear, an intermediate fifth gear and a constant-engaged gear are arranged on the intermediate shaft from right to left; a reverse idler is arranged on the reverse gear shaft. Compared with the prior art, the engineering tipper-used transmission of the utility model is characterized in that: the transmission has the reasonable design, simple structure, simplified operation, low production cost and long use time; and saves the installation space, reduces the tiredness degree of the driver.

Description

A kind of engineering dump truck speed changer

Technical field

The utility model relates to a kind of speed changer, specifically a kind of engineering dump truck speed changer.

Background technique

Odd-side or main tank added the back odd-side before at present the engineering dump truck speed changer of coupling motor 480-4100 mostly was main tank and adds, there is high and low shift in this kind gearbox, and high gear, some gear speed ratio of low gear are more or less the same or repeat, and gear can not effectively utilize, cause the gear waste, corresponding gearbox cost up; Because the major-minor case links together, cause processing technology complexity and critical size to be difficult to guarantee, the difficult control of major-minor case coaxality causes between the major-minor case bearing fragile, and gear is beaten phenomenons such as tooth; The pattern that the gearshift structure adopts the major-minor case to separate, car load gearshift complexity is handled difficulty.

Summary of the invention

Technical assignment of the present utility model is at above deficiency, provide a kind of long service life, cost of production low, be easy to process, a kind of engineering dump truck speed changer of environmentally safe.

The technological scheme that its technical problem that solves the utility model adopts is: the intermediate portion is provided with one and two in the casing, declutch shift shaft is arranged on two top, reverse gear shaft and jack shaft are arranged on two below, it is characterized in that being disposed with from right to left on two reverse gear, first gear, second gear, three retaining gears, four retaining gears and five retaining gears, be disposed with three or four retaining duplicate gear, countershaft fifth speed gear and commonly engaged gears on the jack shaft from right to left, reverse gear shaft is provided with the idle pulley that reverses gear.

Declutch shift shaft is provided with four shift forks; Three or four retaining duplicate gears keep off gear engagement with three retaining gears, four respectively; Countershaft fifth speed gear and five retaining gear engagement; Commonly engaged gear and a normal engagement; Reverse gear idle pulley and jack shaft, reverse gear often meshes.

One retaining of this speed changer is ultralow retaining, increases grade ability, is equivalent to built-in secondary speed change; Two, three, four, five, six retainings adopt the synchronizers gearshift, and one, reverse gear and adopt the gearshift of engagement cover; Gear, axle have been carried out strengthening design; Gearshift adopts a shift control mechanism, handles simple.

A kind of engineering dump truck of the present utility model is compared with prior art with speed changer, has reasonable in design, simple in structure, simplification manipulation, and cost of production is low, the characteristics of long service life, and saved installing space, alleviated the degree of fatigue of driver.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Accompanying drawing is the structural representation of engineering dump truck with speed changer.

Among the figure: 1, one, 2, casing, 3, five retaining gears, 4, four retaining gears, 5, three retaining gears, 6, second gear, 7, first gear, 8, reverse gear, 9, commonly engaged gear, 10, countershaft fifth speed gear, 11,34 retaining duplicate gears, 12, jack shaft, 13, the idle pulley that reverses gear, 14, two, 15, reverse gear shaft, 16, shift fork, 17, declutch shift shaft.

Embodiment

Explain below with reference to Figure of description a kind of engineering dump truck of the present utility model being done with speed changer.

A kind of engineering dump truck speed changer of the present utility model, its structure comprises casing 2, one 1, two 14, declutch shift shaft 17, jack shaft 12 and reverse gear shaft 15, the intermediate portion is provided with one 1 and two 14 in the casing 2, declutch shift shaft 17 is arranged on two 14 top, reverse gear shaft 15 and jack shaft 12 are arranged on two 14 below, be disposed with reverse gear 8 on two 14 from right to left, first gear 7, second gear 6, three retaining gears 5, four retaining gears 4 and five retaining gears 3, be disposed with three or four retaining duplicate gears 11 on the jack shaft 12 from right to left, countershaft fifth speed gear 10 and commonly engaged gear 9, reverse gear shaft 15 is provided with the idle pulley 13 that reverses gear.

Declutch shift shaft 17 is provided with four shift forks 16; Three or four retaining duplicate gears 11 mesh with three retaining gears 5, four retaining gears 4 respectively; Countershaft

fifth speed gear

10 and 3 engagements of five retaining gears; Commonly engaged gear 9 and one 1 engagement often; The idle pulley 13 that reverses gear often meshes with jack shaft 12, reverse gear 8.

Except that the described technical characteristics of specification, be the known technology of those skilled in the art.

Claims

1, a kind of engineering dump truck speed changer, comprise casing, one, two, declutch shift shaft, jack shaft and reverse gear shaft, the intermediate portion is provided with one and two in the casing, declutch shift shaft is arranged on two top, reverse gear shaft and jack shaft are arranged on two below, it is characterized in that being disposed with from right to left on two reverse gear, first gear, second gear, three retaining gears, four retaining gears and five retaining gears, be disposed with three or four retaining duplicate gear, countershaft fifth speed gear and commonly engaged gears on the jack shaft from right to left, reverse gear shaft is provided with the idle pulley that reverses gear.

2, engineering dump truck speed changer according to claim 1 is characterized in that declutch shift shaft is provided with four shift forks.

3, engineering dump truck speed changer according to claim 1 is characterized in that three or four retaining duplicate gears keep off gear engagement with three retaining gears, four respectively.

4, engineering dump truck speed changer according to claim 1 is characterized in that countershaft fifth speed gear and five retaining gear engagement.

5, engineering dump truck speed changer according to claim 1 is characterized in that commonly engaged gear and a normal engagement.

6, engineering dump truck speed changer according to claim 1, it is characterized in that reversing gear idle pulley and jack shaft, reverse gear often mesh.