Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of novel three-wheeled motor bike auxiliary gear box is provided, this device can be changed the power of motor cycle engine driving displacement and drive between other equipment operations.
For achieving the above object, the present invention by the following technical solutions: transfer case for motor tricycle, comprise casing, also comprise:
One end stretches out in the outer and propulsion source bonded assembly input shaft of casing;
One end stretch out in casing outer and with the main output shaft of the coaxial setting of input shaft;
One end stretch out in casing outer and with the vertically disposed secondary output shaft of input shaft;
Being set in input shaft can be around the active arc finishing bevel gear cuter of input shaft rotation;
Install and to drive the passive arc finishing bevel gear cuter that secondary output shaft rotates on the secondary output shaft, this passive arc finishing bevel gear cuter and initiatively arc finishing bevel gear cuter engagement;
Be set on the input shaft by its drive rotate synchronously and can along input shaft and main output shaft slide in conjunction with tooth, this slides into when initiatively the arc finishing bevel gear cuter is connected in conjunction with tooth, by active arc finishing bevel gear cuter, passive arc finishing bevel gear cuter the power of input shaft is sent to secondary output shaft, when sliding into main output shaft, be connected, the power of input shaft is sent to main output shaft with the main output shaft spline in conjunction with tooth;
-with the above-mentioned shift fork of controlling its sliding position on input shaft and main output shaft that is connected in conjunction with tooth.
Further, described shift fork comprises handle, declutch shift shaft and pusher dog, and an end of handle is bolted with handle ball (72), and the other end of handle is captiveed joint with an end of declutch shift shaft, described declutch shift shaft the other end captive joint one pusher dog, described pusher dog with combine the tooth clamping.
Further,, can horizontally slip along input shaft by spline and input shaft connection in conjunction with tooth in conjunction with tooth.
Further, described casing front side, rear side and left side are respectively equipped with front end cover, rear side housing, left end cap, and described casing top is provided with the ventilation flap.
Further, offer through hole in the described casing, wear retracing spring and dead bolt in this through hole, and the outer end of this through hole is sealed by front end cover; One end of described dead bolt stretches in the depression that is provided with on the pusher dog outside face, a butt of the other end of dead bolt and retracing spring, and the other end of spring is spacing by front end cover.
Further, described in conjunction with the tooth outside face be provided with groove (, described shift fork snaps in the groove.
The invention has the beneficial effects as follows: 1) motor bike power can be changed driving displacement and drive between other equipment operations; 2) simple in structure, volume is little, and transfer torque is big, and conversion operations is easy.
The specific embodiment
Shown in Fig. 1-6, transfer case for motor tricycle of the present invention comprises casing 1, also comprises:
Input shaft 2, arc finishing bevel gear cuter 6 is installed initiatively and in conjunction with tooth 5 on the input shaft 2, in conjunction with being respectively equipped with female splines and male splines inside and outside the tooth 5, initiatively arc finishing bevel gear cuter 6 inside faces are provided with female splines, input shaft 2 is provided with male splines, pass through its female splines and input shaft 2 male splines connections in conjunction with tooth 5, be connected with active arc finishing bevel gear cuter 6 female spliness by its male splines in conjunction with tooth 5, can horizontally slip along input shaft 2 in conjunction with tooth 5, but the input shaft 2 of can not having mercy on rotates, initiatively arc finishing bevel gear cuter 6 is set on the input shaft 2, can rotate around input shaft, but can not sway, when input shaft 2 rotates, drive is rotated together in conjunction with tooth 5, when being connected with active arc finishing bevel gear cuter 6 in conjunction with tooth 5, driving initiatively, arc finishing bevel gear cuter 6 rotates, initiatively arc finishing bevel gear cuter 6 is set on the input shaft 2, can rotate around input shaft 2, when not being connected with active arc finishing bevel gear cuter 6 in conjunction with tooth 5, initiatively arc finishing bevel gear cuter 6 does not rotate with input shaft 2, is provided with groove 51 when described in conjunction with the tooth outside face, the pusher dog 74 of described shift fork snaps in the groove 51, and an end of described input shaft 2 stretches out the front side of casing 1;
Main output shaft 3, its axle center and input shaft 2 are located along the same line, main output shaft 3 one ends are provided with female splines, in conjunction with tooth 5 by male splines and main output shaft 3 female splines connections, when input shaft 2 rotates, drive and rotate together, when being connected by spline in conjunction with tooth 5 and main output shaft 3 in conjunction with tooth 5, drive main output shaft 3 in conjunction with tooth 5 and rotate together, main output shaft 3 other ends stretch out the rear side of casing 1;
Secondary output shaft 4, its axle center and input shaft 2 intersect vertically, on the secondary output shaft 4 passive arc finishing bevel gear cuter 7 is installed, passive arc finishing bevel gear cuter 7 and initiatively arc finishing bevel gear cuter 6 engagements, passive arc finishing bevel gear cuter 7 and secondary output shaft 4 are connected by spline, when input shaft 2 rotates, drive is rotated together in conjunction with tooth 5, when being connected with active arc finishing bevel gear cuter 6 in conjunction with tooth 5, drive initiatively that arc finishing bevel gear cuter 6 rotates, rotate, because passive arc finishing bevel gear cuter 7 and secondary output shaft 4 are connected by spline thereby drive passive arc finishing bevel gear cuter 7, rotate so finally drive secondary output shaft 4, when the left side that secondary output shaft 4 one ends stretch out casing 1;
Shift fork describedly is provided with groove 51 in conjunction with tooth 5 outside faces, and the pusher dog of described shift fork snaps in the groove 51, and shift fork can be stirred in conjunction with tooth 5 sway, thereby drives main output shaft 3 or arc finishing bevel gear cuter 6 initiatively respectively.
Shown in Fig. 1-6, described shift fork comprises handle 71, declutch shift shaft 73 and pusher dog 74, one end of handle 71 is bolted with handle ball 72, the other end of handle 71 is captiveed joint with an end of declutch shift shaft 73, described declutch shift shaft 73 the other end captive joints one pusher dog 74, the salient of described pusher dog 74 snaps in the groove 51.
Shown in Fig. 1-6, described casing 1 front side, rear side and left side are respectively equipped with front end cover 11, rear side housing 12, left end cap 13, and described casing 1 top is provided with ventilation flap 14.Described casing 1 front side, rear side and left side are respectively equipped with front end cover 11, rear side housing 12, left end cap 13, are fixed on the casing 1 by bolt 10 with upper end cover.
Shown in Fig. 1-6, offer through hole in the described casing 1, wear retracing spring (8) and dead bolt 9 in this through hole, and the outer end of this through hole is by front end cover 11 sealings; One end of described dead bolt 9 stretches in the depression that is provided with on pusher dog 74 outside faces, a butt of the other end of dead bolt 9 and retracing spring 8, and the other end of spring 8 is spacing by front end cover 11.
During use, as shown in Figure 5, when the switching controls handle placed as shown in Figure 5 direction, handle 71 acted on pusher dog 30 by pusher dog axle 73, stirs in conjunction with tooth 5 and moves.Combine with inner circular tooth on the main output shaft 3 in conjunction with tooth 5 outer shroud teeth.Power is transmitted in conjunction with tooth 5 through the spline of input shaft 2, through transmitting and main output shaft 3 in conjunction with tooth 5 outer shroud teeth, realizes takeoff output again.Initiatively arc finishing bevel gear cuter 6 is a sliding block joint with input shaft 2, does not rotate secondary output shaft 4 no power takeoffs with input shaft 2.This working position is used for exporting engine power to the vehicle rear axle system, the use of travelling of buying car in installments.
As shown in Figure 6, when the switching controls handle placed as shown in Figure 6 direction, handle 71 acted on pusher dog 30 by pusher dog axle 73, stirs in conjunction with tooth 5 and moves.Combine with inner circular tooth on the arc finishing bevel gear cuter 6 initiatively in conjunction with tooth 5 outer shroud teeth.Power is transmitted in conjunction with tooth 5 through the spline of input shaft 2, and through transmitting in conjunction with tooth 5 outer shroud teeth and active arc finishing bevel gear cuter 6, initiatively arc finishing bevel gear cuter 6 drives with its ingear pair and exports passive arc finishing bevel gear cuter 7, drives secondary output shaft 22 through spline, realizes takeoff output again.This working position is used for exporting to engine power vehicle-mounted or other are with can equipment in vehicle stationary state following time.
As shown in Figure 7, the present invention is installed on the three-wheel fire fighting motorcycle, by operating handle, realizes the conversion of power.
The present invention includes but be not limited to the described embodiment of the foregoing description, also can design other embodiment in conjunction with concrete applicable cases according to technical solutions according to the invention.