CN2230685Y

CN2230685Y - Gear assembly with two shifting yokes

Info

Publication number: CN2230685Y
Application number: CN 95234177
Authority: CN
Inventors: 谭家昌; 高宝瑞; 王国萍; 辛卫国
Original assignee: JULI GROUP STOCK-SHARING Co Ltd WEIFANG CITY
Current assignee: JULI GROUP STOCK-SHARING Co Ltd WEIFANG CITY
Priority date: 1995-06-21
Filing date: 1995-06-21
Publication date: 1996-07-10
Anticipated expiration: 2005-06-21

Abstract

The utility model relates to a gear assembly with two shifting yokes and is used in a farm transport vehicle with three wheels or four wheels. A common gear assembly with two shifting yokes is added with an interlock device which comprises two locking disks that are provided respectively with a groove. A lock whose both ends from a spherical surface shape is arranged between the two grooves. The disorder shifting phenomenon does not happen in the gear assembly with two shifting yokes, so the traffic accident caused by the disorder shifting phenomenon is avoided.

Description

A kind of pair of shift fork gearshift assembly

The utility model relates to two shift fork gearshift assemblies of agricultural three-wheel or four-wheel transport trolley.

Two shift fork gearshift assemblies of agricultural three-wheel of general-duty or four-wheel transport trolley, comprise the gearshift pole socket, be contained in gear level and little axle on the gearshift pole socket, be fixed on two rocking arms on the outer section of little axle, owing to there is not interlock, dress random retaining can occur when using onboard, and traffic accident takes place, and causes casualties and property damage.

The purpose of this utility model is a kind of disorderly two shift fork gearshift assemblies of retaining that do not occur of design.

This pair of shift fork gearshift assembly comprises the gearshift pole socket, the gearshift pole socket is provided with two inner chambers, two little axles that stretch out from same end are housed in each inner chamber, suit is fixed with outwardly directed gear level on the inner chamber section of the little axle of each root, the last suit of the section of stretching out of a little axle is fixed with one and keeps off the rocking arm that reverses gear, the section of stretching out of the little axle of another root goes up suit and is fixed with two retainings, three retaining rocking arms, its constructional feature is to be provided with interlock, interlock comprises and is set with the locking plate that is fixed on the little shaft extension of each root section of going out, on these two locking plates, respectively be provided with a groove, the lock that two ends are spherical shape is housed between two grooves.

This pair of shift fork gearshift assembly, when work, one of them rocking arm drives little axle, locking plate, angle of gear level rotation, making the interior shift fork of change-speed box drive corresponding cliding gear arrives on the corresponding gear, at this moment, this locking plate that rotates is given the power of an extrapolation of lock, withdraw from the groove of an end that makes lock from the locking plate that rotates, the other end enters in the groove on another locking plate that does not change fully, to pin with that rocking arm of the locking plate bonded assembly that does not change, have only the rocking arm of rotation to return to neutral gear position again, the rocking arm of being locked could release.After the gearshift, the former rocking arm that does not change rotates an angle, uses the same method the rocking arm pinning of former rotation.Therefore, random retaining under the effect of interlock, can not take place in this pair of shift fork gearshift assembly, thereby actv. has prevented because of disorderly keeping off the traffic accident that takes place.

Accompanying drawing shows the embodiment of two shift fork gearshift assemblies, and wherein Fig. 1 is the structural representation of embodiment, and Fig. 2 is A-A cutaway view of Fig. 1.In the present embodiment, two shift fork gearshift assemblies comprise gearshift pole socket 1, gearshift pole socket 1 is provided with two inner chambers, two little axles 6 that stretch out from same end are housed in each inner chamber, on the inner chamber section of each little axle 6, be set with outwardly directed gear level 2, gear level 2 is captiveed joint with little axle 6 by taper pin 9, be set with locking plate 3 on the section of stretching out of each little axle 6, locking plate 3 is captiveed joint with little axle 6 by flat key 8, the outside of locking plate 3, be set with one on the little axle 6 and keep off the Rocker arm 4 that reverses gear, be set with two retainings, three retaining Rocker arm 5s on the little axle 6 of another root, one keeps off the Rocker arm 4 that reverses gear, two retainings, three retaining Rocker arm 5s are captiveed joint with little axle 6 by the set pin 7 that has nut 12 respectively, on two locking plates 3, respectively be provided with a groove 11, the lock 10 that two ends are spherical shape is housed between two grooves 11, and the length of lock 10 equals the groove depth that distance between two locking plates, 3 outsides adds a groove 11.

Claims

1, a kind of pair of shift fork gearshift assembly, comprise gearshift pole socket (1), gearshift pole socket (1) is provided with two inner chambers, the two little axles (6) that stretch out from same end are housed in each inner chamber, suit is fixed with outwardly directed gear level (2) on the inner chamber section of the little axle of each root (6), the last suit of the section of stretching out of a little axle (6) is fixed with one and keeps off the rocking arm (4) that reverses gear, the section of stretching out of the little axle of another root (6) goes up suit and is fixed with two retainings, three retaining rocking arms (5), it is characterized in that being provided with interlock, interlock comprises and is set with the locking plate (3) that is fixed on the little axle of each root (6) section of stretching out, on these two locking plates (3), respectively be provided with a groove (11), the lock (10) that two ends are spherical shape is housed between two grooves (11).

2, according to the said pair of shift fork of claim 1 gearshift assembly, the length that it is characterized in that lock (10) equals the groove depth that distance between two locking plates (3) outside adds a groove (11).

3,, it is characterized in that reverse gear rocking arm (4), two retainings, three retaining rocking arms (5) of a retaining captiveed joint with little (6) by the set pin that has nut (12) (7) respectively according to the said pair of shift fork of claim 1 gearshift assembly.

4,, it is characterized in that locking plate (3) captiveed joint with little (6) by flat key (8) according to the said pair of shift fork of claim 1 gearshift assembly.

5,, it is characterized in that gear level (2) captiveed joint with little (6) by taper pin (9) according to the said pair of shift fork of claim 1 gearshift assembly.