CN2633634Y

CN2633634Y - Motor vehicle auxiliary gearbox assembly

Info

Publication number: CN2633634Y
Application number: CN 03260965
Authority: CN
Inventors: 熊绪盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-07
Filing date: 2003-08-07
Publication date: 2004-08-18
Anticipated expiration: 2013-08-07

Abstract

The utility model aims to disclose the technical proposal of an auxiliary gearbox assembly which can improve gradeability and dynamic situation on the premise that the original vehicle transmission structure is unchanged, which mainly has a chief axis with the middle part provided with an intermediate gear meshed with a secondary reduction gear arranged in a box body . The motor vehicle auxiliary gearbox assembly is implemented according to the above proposal, wherein, as the chief axis is provided with the intermediate gear replacing the clutch and meshed with the secondary reduction gear, the final output rotating speed is decreased little compared with the original output rotating speed after secondary reduction; according to the inverse relation of the rotating speed and the output torque, the output horsepower is increased little compared with the original output horsepower; therefore, the situation of insufficient grade climbing dynamical force is relatively effectively improved. The utility model has the advantages of reasonable design, a simple structure, light operation, good universality, safety, reliability and convenient maintenance.

Description

Self-propelled vehicle demultiplicator assembly

Technical field

The utility model relates to the vehicle transmission assembly, refers to a kind of demultiplicator assembly of agricultural vehicle especially.

Background technology

A kind of agricultural vehicle by the moderate duty truck repacking, relatively poor in view of the rural area road conditions, especially in the mountain area, its takeoff output and gradeability are relatively poor.Its major cause is that the design of change-speed box drive mechanism is rationally not near, so this car is in operation not only influences carrying capacity, and more easily has an accident.

The utility model content

The purpose of this utility model is under the prerequisite that does not change former system of vehicle transmission structure, discloses a kind of technical scheme of improving the demultiplicator assembly of hill climbing ability and power situation.For realizing this purpose, this programme adopts following measure: a kind of self-propelled vehicle demultiplicator assembly, comprise casing, gear, axle, shift fork and power-transfer clutch etc., it is characterized in that being provided with in the casing the sliding main shaft of putting an intermediate gear in its middle part, this intermediate gear and a double-reduction gear be bridle joint mutually, double-reduction gear is the sliding dual gear that places, wherein, the number of teeth of one gear less than with its number of teeth of the intermediate gear of bridle joint mutually, the number of teeth of another gear greater than with its number of teeth of the input gear of bridle joint mutually; The input end of main shaft is inserted in the mouth axle center blind hole that dynamical axis is shaped on input gear, and its main shaft mouth is shaped on output gear and is suspended in outside the casing; Intermediate gear and main shaft are the spline bridle joint, and intermediate gear is shaped on the groove of plant shift fork.

Press the self-propelled vehicle demultiplicator assembly that such scheme is implemented and since main shaft be provided with an alternative power-transfer clutch and with the double-reduction gear intermediate gear of bridle joint mutually, its final output speed decreases than former output speed.Press the inverse relation of rotating speed and output torque, its horsepower output should increase by more former horsepower output to some extent, so, improved the situation of climbing under power than actv..The utlity model has characteristics reasonable in design, that structure is simple and direct, manipulation is light, commonality is good, safe and reliable and easy to maintenance.

Description of drawings

Fig. 1 is a kind of drive mechanism scheme drawing that is used for the embodiment of EQ140 and NJ130 vehicle.

The specific embodiment

Now specify with regard to this embodiment in conjunction with the accompanying drawings.Casing 2 is established main shaft 1, and its input end is inserted in the axle head blind hole of the dynamical axis 7 of main-gear box output (diagram long and two-short dash line), and this end also is shaped on input gear 71 (shown in the long and two-short dash line); The main shaft mouth is shaped on output gear 10 (number of teeth 19) and is suspended in outside the casing, and main shaft middle part is equipped with intermediate gear 8 (number of teeth 26), this gear be shaped on plant shift fork 5 groove 82 and with main spindle multiple spline 11 splined hole 81 of bridle joint mutually; This intermediate gear bridle joint one duplex gear 3, wherein, with the number of teeth of intermediate gear gears in mesh 30 be 18, the number of teeth of another and input gear 71 gears in meshs 31 is 27.In the use, this assembly apparatus joins in the suitable position and the main gearbox of car body.Horse-power-hour when needs increase automotive operation, handling shifter bar 6 makes shift fork 5 stir intermediate gear 8 and gear 30 engagements, at this moment,---level is slowed down, and---back is spread out of by output gear 10 input gear 71 engaging gears 31 of dynamical axis---to make double reduction---by gear 30 engagement intermediate gears 8 again.Because the reduction of output speed, so, and then increased horsepower output accordingly.Otherwise, if when need not to change takeoff output, handle shifter bar and make intermediate gear direction shown in the arrow in figure place neutral, promptly without this demultiplicator, the main gearbox dynamical axis press the prime power way of output and is exported.This transmission assembly has been put a middle cover (the accompanying drawing part omitted is shown) because of adding on former casing, so the utility model not only can be used for the NJ130 vehicle but also can be used for the EQ140 vehicle and other agri-vehicles.

Claims

1, a kind of self-propelled vehicle demultiplicator assembly comprises casing, gear, axle, shift fork and power-transfer clutch etc., it is characterized in that being provided with in the casing the sliding main shaft of putting an intermediate gear in its middle part, and this intermediate gear and a double-reduction gear be bridle joint mutually.

2, by the described self-propelled vehicle demultiplicator of claim 1 assembly, it is characterized in that double-reduction gear is the sliding dual gear that places, wherein, the number of teeth of a gear less than with its number of teeth of the intermediate gear of bridle joint mutually, the number of teeth of another gear greater than with its number of teeth of the input gear of bridle joint mutually.

3, by the described self-propelled vehicle demultiplicator of claim 1 assembly, it is characterized in that the input end of main shaft is inserted in the mouth axle center blind hole that dynamical axis is shaped on input gear, its main shaft mouth is shaped on output gear and is suspended in outside the casing.

4, by the described self-propelled vehicle demultiplicator of claim 1 assembly, it is characterized in that intermediate gear and main shaft are the spline bridle joint.

5, by claim 1,4 described self-propelled vehicle demultiplicator assemblies, it is characterized in that intermediate gear is shaped on the groove of plant shift fork.