CN2470174Y

CN2470174Y - Gear-box of farm transport vehicle

Info

Publication number: CN2470174Y
Application number: CN 01216963
Authority: CN
Inventors: 杨德善; 李洪波
Original assignee: ZHONGXING MACHINERY MANUFACTURING Co Ltd WULIAN COUNTY
Current assignee: ZHONGXING MACHINERY MANUFACTURING Co Ltd WULIAN COUNTY
Priority date: 2001-03-13
Filing date: 2001-03-13
Publication date: 2002-01-09
Anticipated expiration: 2011-03-13

Abstract

The utility model, relating to gear transmission device technique filed, comprises a case, a first shaft, a second shaft, a third shaft, a forth shaft, a folk assembly and a differential gear assembly. The back end of the case is an arc. One end of the first shaft is provided with a first-gear constant meshing gear, a forth-gear sliding gear and a fifth-gear sliding gear; the second shaft is provided with a gearing matching with the first-gear constant meshing gear, a second-gear sliding gear, a third-gear sliding gear and a first-gear sliding gear and a reverse gear sliding gear; one end of the third shaft is provided with a constant meshing gear, a first-gear fixing gear, a second-gear fixing gear and a third-gear fixing gear; the forth shaft is provided with a forth-gear gear, a reverse gear and a main retarding gear for a fifth-gear fixing gear. The utility model has the advantages of simple structure, low cost and long service life.

Description

A kind of agriculture truck change speed gear box

The utility model relates to the gear system technical field, is specifically related to a kind of agriculture truck change speed gear box.

At present, the agriculture truck change speed gear box commonly used such as the patent No. are 96227140 three-wheeled farm transport vehicle change speed gear box, it comprises four transmission shafts, 12 gears, three groups of shifting fork assemblies, finish four D Drives and a reverse gear, also having its patent name of a kind of structure is five gear three-wheeled farm transport vehicle change speed gear boxs, on the I axle as power input shaft cliding gear is installed, three, fourth gear cliding gear and dual gear, this structure, gear is more, and gear is few, the cost height, and it is many as gear is installed on the I axle of power input shaft, damage complex structure easily, unreasonable, make change speed gear box short service life.

The purpose of this utility model just provides a kind of simple and reasonable, and cost is low, gear distributes rationally, the agriculture truck change speed gear box of change speed gear box long service life.

To achieve these goals, the technical solution of the utility model is: comprise casing, be installed in I axle, II axle, III axle, IV axle on the casing by bearings, be installed on the shifting fork assembly on the casing, and be installed in the interior differential assembly of casing, and be equipped with on the differential assembly and pass big gear wheel eventually, on the I axle as power input shaft power-transfer clutch is installed, its constructional feature is: I axle one end is equipped with one grade of constant mesh gear, and four, five grades of cliding gears also are installed on the I axle; Be equipped with on the II axle and one grade of constant mesh gear gears in mesh, also be equipped with two on the II axle successively, third gear cliding gear and, reverse gear cliding gear; One end of III axle is equipped with constant mesh gear, and one grade of fixed gear wheel, second gear fixed gear wheel, third gear fixed gear wheel also are installed successively; The IV axle mounting has constant mesh gear ingear four, the reverse gearwheel with the III axle, also be equipped with successively five grades of fixed gear wheels and with diff bonded assembly main reduction gear.

The rear end of described gear box is the garden arc.

The utility model adopts goes up structure, I axle one end is equipped with one grade of constant mesh gear, also be equipped with four on the I axle, five grades of cliding gears, make two gears only are installed on the I axle as power input shaft, one stressed less, be not easy to damage, and the constant mesh gear of I axle and II axle and III axle, the constant mesh gear of IV axle all is arranged at the I axle, the II axle, the III axle, the end of IV axle distributes along box bilateral wall, supports by the two side, stressing conditions is good, prolonged the service life of change speed gear box, and realized the 5+R gear, gear is distributed rationally, reduce gear quantity, reduced cost; The rear end of described gear box is the garden arc, and saving in material is in light weight, the intensity height.

Describe the utility model in detail below in conjunction with drawings and Examples;

Fig. 1 shows the front view of the utility model embodiment

Fig. 2 shows the compound birds-eye view that cuts open of the utility model embodiment;

The utility model comprises gear box 14, the rear end of casing 14 is the garden arc, be installed in I axle 15, II axle 16, III axle 17, IV axle 18 on the casing by bearings, be installed on the shifting fork assembly 19 in the casing 14, and be installed in differential assembly 20 in the casing 14, and be equipped with on the differential assembly 20 and pass big gear wheel 9 eventually, on the I axle 15 as power input shaft power-transfer clutch is installed, I axle 15 1 ends are equipped with one grade of constant mesh gear 1, and four, five grades of cliding gears 13 also are installed on the I axle; Be equipped with on the II axle 16 and one grade of constant mesh gear, 1 gears in mesh 2, also be equipped with two on the II axle 16 successively, third gear cliding gear 3 and, reverse gear cliding gear 12; One end of III axle 17 is equipped with constant mesh gear 11, and one grade of fixed gear wheel 10, second gear fixed gear wheel 5, third gear fixed gear wheel 4 also are installed successively; IV axle 18 is equipped with constant mesh gear 11 ingears four, the reverse gearwheel 8 with III axle 17, also be equipped with successively five grades of fixed gear wheels 7 and with diff 20 bonded assembly main reduction gears 6.

The gear transmission route of each gear is as follows in the foregoing description:

One grade: power is from 15 inputs of I axle, the gear 2 that is engaged with on one grade of constant mesh gear 1 and the II axle 16 cooperates, stir one, reverse gear cliding gear 12 and one grade of fixed gear wheel 10 engagement, the constant mesh gear 11 and four of III axle 17, reverse gearwheel 8 engagements, main reduction gear 6 and biography big gear wheel 9 engagements eventually.

Second gear: power is from 15 inputs of I axle, the gear 2 that is engaged with on one grade of constant mesh gear 1 and the II axle cooperates, stir two, third gear cliding gear 3 cooperates 5 with the second gear fixed gear wheel, the constant mesh gear 11 and four of III axle, reverse gearwheel 8 engagements, main reduction gear 6 with pass big gear wheel 9 engagements eventually.

Third gear: power is from 15 inputs of I axle, the gear 2 that is engaged with on one grade of constant mesh gear 1 and the II axle 16 cooperates, stir two, third gear 3 gears that slide cooperate with third gear fixed gear wheel 4, the constant mesh gear 11 and four of III axle 17, reverse gearwheel 8 engagements, main reduction gear 6 with pass big gear wheel 9 engagements eventually.

Fourth gear: power is stirred four, five grades of cliding gears 13 and four, reverse gearwheel 8 engagements from 15 inputs of I axle, main reduction gear 6 and biography big gear wheel 9 engagements eventually.

Five grades: power is stirred four, five grades of cliding gears 13 and five grades of fixed gear wheel 7 engagements, main reduction gear 6 and biography big gear wheel 9 engagements eventually from 15 inputs of I axle.

Reverse gear: power is from I axle 15 input, and the gear 2 that is engaged with on one grade of constant mesh gear 1 and the II axle cooperates, stirs one, reverse gear cliding gear 12 and four, reverse gearwheel 8 engagements, and main reduction gear 6 meshes with whole biography big gear wheel 9.

Claims

1, a kind of agriculture truck change speed gear box comprises casing (14), be installed in I axle (15) on the casing (14) by bearings, II axle (16), III axle (17), IV axle (18), be installed on the shifting fork assembly (20) on the casing, and be installed in differential assembly (20) in the casing (14), be equipped with on the differential assembly (20) and pass big gear wheel (9) eventually, on the I axle (15) as power input shaft power-transfer clutch is installed, it is characterized in that: I axle (15) one ends are equipped with one grade of constant mesh gear (1), and the I axle also is equipped with four on (15), five grades of cliding gears (13); Be equipped with on the II axle (16) and one grade of constant mesh gear (1) gears in mesh (2), also be equipped with two on the II axle (16) successively, third gear cliding gear (3) and, reverse gear cliding gear (12); One end of III axle (17) is equipped with constant mesh gear (11), and one grade of fixed gear wheel (10), second gear fixed gear wheel (5), third gear fixed gear wheel (4) also are installed successively; IV axle (18) is equipped with constant mesh gear (11) ingear four, the reverse gearwheel (8) with III axle (17), also be equipped with successively five grades of fixed gear wheels (7) and with diff bonded assembly main reduction gear (6).

2, agriculture truck change speed gear box according to claim 1 is characterized in that: the rear end of described gear box (14) is the garden arc.