CN2500525Y

CN2500525Y - Spindle nose clutch for automobile

Info

Publication number: CN2500525Y
Application number: CN 01259510
Authority: CN
Inventors: 赵敏学
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-24
Filing date: 2001-08-24
Publication date: 2002-07-17
Anticipated expiration: 2011-08-24

Abstract

A car free hub relates to a clutch and is characterized in that a regulating knob (1) at the left end of a casing (4) is fixedly connected with a sliding sheath (12) in the casing, an inner teethed sheath (7) is arranged in an inner hole (8-1) of an inner pressed cover (8) at the right end of the casing, an inner spline (7-1) is provided in the inner hole at the right end of the inner teethed sheath, a spline outer sheath (9) jackets a sliding sheath (12) and the inner teethed sheath, the outer teeth (9-1) of the spline outer sheath and an axial teethed groove (4-1) in the casing (4) match each other in a sliding manner, the inner teeth (9-2) of the spline outer sheath joggle with the outer teeth (7-2) at the left end of the inner teethed sheath, a compression spring (10) is against the left side of the spline outer sheath (9), and one end of a pin (14) is fixedly connected with the spline outer sheath (9) and the other end thereof is positioned at the left side of a spiral bevel (12-1) of the sliding sheath. The free hub is arranged on a car to reduce gasoline consumption, reduce noise, improve speed and reduce mechanical wearing. The utility model also solves the problems of the prior free hubs such as large radical pendular movement, poor working reliability, high labor consumption for maintenance, and high production cost.

Description

Automobile spindle nose power-transfer clutch

Technical field: the utility model relates to a kind of power-transfer clutch.

Background technology: at present the ZJ220 cross-country car since when dispatching from the factory front axle be by the Spindle nose cover bonded assembly, its propons and back axle drive four-wheel simultaneously and rotate.No matter be on muddy, bumpy road surface, still on smooth road surface, this car is to be in the four wheel drive state all the time.Above structure makes that the oil consumption of vehicle is big, noise is big, speed is low, mechanism wear is serious.Though Toyota's 4500 automobiles are equipped with power-transfer clutch on spindle nose, there is following shortcoming in its power-transfer clutch: the one, and the amount of radially wobbling is big; The 2nd, because it is to drive the work of slip gear ring by dual spring, so its structure more complicated, manufacturing cost are higher, reliable operation is relatively poor; The 3rd,, need and will front-wheel could be taken off after the split of spindle nose power-transfer clutch during front-wheel in maintenance, install more loaded down with trivial detailsly, maintenance load is big.ZL95210545 has announced a kind of " drive axle head clutch ", and there is the shortcoming of functional reliability difference in its engaging and disengaging gear.

Summary of the invention: the utility model is a kind of automobile spindle nose power-transfer clutch of design, and it has solved existing four-wheel drive car because the problem that oil consumption is big, noise is big, speed is low, mechanism wear is serious that no spindle nose power-transfer clutch causes.Problems such as the amount of radially wobbling that it has also solved existing various automobile spindle nose power-transfer clutch existence is big, functional reliability is poor, maintenance load is big, cost is high, the life-span is low.The utility model comprises adjusting knob 1, shell 4, internal tooth casing 7, internal gland 8, spline overcoat 9, compression spring 10, sliding sleeve 12, the adjusting turn-knob 1 that is positioned at shell 4 left ends is captiveed joint with the sliding sleeve 12 of shell 4, the endoporus 8-1 that is arranged in the internal gland 8 of shell 4 right-hand members is equipped with internal tooth casing 7, be provided with female splines 7-1 in the endoporus of internal tooth casing 7 right-hand members, spline overcoat 9 is enclosed within the outside of sliding sleeve 12 and internal tooth casing 7, axial teeth groove 4-1 in the external tooth 9-1 of spline overcoat 9 and the shell 4 forms bearing fit, the external tooth 7-2 engagement of the internal tooth 9-2 of spline overcoat 9 and internal tooth casing 7 left ends, compression spring 10 withstands on the left side of spline overcoat 9, one end of pin 14 is captiveed joint with spline overcoat 9, and the other end of pin 14 is positioned at the left side of screw inclined plane 12-1 on the sliding sleeve 12.This spindle nose power-transfer clutch is installed on the automobile of four wheel drive, the spline fitted of the female splines 7-1 of internal tooth casing 7 and automobile half front axle spindle nose, shell 4 is captiveed joint with the propons of automobile.During to muddy bumpy road surface, internal tooth casing 7 drives shells 4 by spline overcoat 9 and rotates at running car, and power-transfer clutch is in engagement state, and the four-wheel of automobile drives simultaneously; When running car during in flat road surface, rotate and regulate turn-knob 1, regulate turn-knob 1 and drive sliding sleeve 12 with respect to shell 4 rotations, screw inclined plane 12-1 pushing pin 14 on the sliding sleeve 12 is to left movement, pin 14 drives spline overcoat 9 and breaks away to left movement and with internal tooth casing 7, this moment, power-transfer clutch was in released state, and vehicle front is a non-driven state.The automobile of installation shaft head clutch has the advantage that oil consumption is low, noise is little, speed is high, mechanical wear is low.Because the internal tooth casing 7 that this spindle nose power-transfer clutch is connected with spindle nose is supported by internal gland 8, so it has prevented radially wobbling of spindle nose; When the spindle nose power-transfer clutch is in engagement state, promoted by a compression spring 10, and promoted by sliding sleeve 12 when being in released state, this structure has that cost is low, simple in structure, the advantage of reliable operation; Because the parts of this power-transfer clutch are installed in the inside of shell 4, therefore when carrying out Motor Maintenance, spindle nose power-transfer clutch integral body can be taken off, it is in place maintain integral installation afterwards, has used very conveniently, has reduced maintenance load simultaneously.

Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is the B-B cutaway view of Fig. 1, and Fig. 4 is the structural representation of sliding sleeve 12.

The specific embodiment: present embodiment is made up of adjusting turn-knob 1, little spring 2, steel ball 3, shell 4, interior snap ring 5, outer snap ring 6, internal tooth casing 7, internal gland 8, spline overcoat 9, compression spring 10, seal ring 11, sliding sleeve 12, screw 13, pin 14.Regulate the left end that turn-knob 1 is positioned at shell 4, sliding sleeve 12 is positioned at the inside of shell 4, and screw 13 is captiveed joint sliding sleeve 12 with adjusting turn-knob 1.Internal gland 8 is located at the right-hand member of shell 4, and outer snap ring 5 is stuck on the shell 4 internal gland 8 is fixing.Internal tooth casing 7 is installed among the endoporus 8-1 of internal gland 8, and boss 7-3 on the internal tooth casing 7 and outer snap ring 6 are located at the inside and outside both sides of internal gland 8 respectively, and it can limit the end float misalignment of internal tooth casing 7.Be provided with female splines 7-1 in the endoporus of internal tooth casing 7 right-hand members, female splines 7-1 matches with automobile spindle nose spline.Spline overcoat 9 is enclosed within the outside of sliding sleeve 12 and internal tooth casing 7, and the axial teeth groove 4-1 in the external tooth 9-1 of spline overcoat 9 and the shell 4 forms bearing fit, the external tooth 7-2 engagement of the internal tooth 9-2 of spline overcoat 9 and internal tooth casing 7 left ends.The left end of compression spring 10 withstands on the left side wall 4-2 of shell 4, and its right-hand member withstands on the spline overcoat 9.The outer wall of sliding sleeve 12 is provided with screw inclined plane 12-1, and an end of pin 14 is captiveed joint with spline overcoat 9, and the other end of pin 14 is positioned at the left side of screw inclined plane 12-1.With respect to the sliding sleeve 12 that shell 4 rotates, its screw inclined plane 12-1 pushing pin 14 is moved to the left, and pin 14 drives spline overcoat 9 and breaks away from internal tooth casing.Between the left side wall 4-2 of adjusting knob 1 and shell 4, be provided with seal ring 11.On adjusting knob 1 right flank, be provided with blind hole 1-1, be provided with little spring 2 in blind hole 1-1, there is a steel ball 3 in the outside of little spring 2, is provided with hemispherical dimples 4-3 in the outside of the left side wall 4-2 of shell 4, steel ball 3 embeds among the pit 4-3, and it is fixing that this structure will go to the adjusting knob 1 of certain position.When being rotated further adjusting knob 1, steel ball 3 is with little spring 2 compressions, among the steel ball 3 withdrawal blind hole 1-1.

Claims

1, automobile spindle nose power-transfer clutch, it comprises adjusting knob (1), shell (4), internal tooth casing (7), spline overcoat (9), compression spring (10), it is characterized in that it also includes internal gland (8) and sliding sleeve (12), the adjusting turn-knob (1) that is positioned at shell (4) left end is captiveed joint with the sliding sleeve (12) of shell (4), the endoporus (8-1) that is arranged in the internal gland (8) of shell (4) right-hand member is equipped with internal tooth casing (7), be provided with female splines (7-1) in the endoporus of internal tooth casing (7) right-hand member, spline overcoat (9) is enclosed within the outside of sliding sleeve (12) and internal tooth casing (7), the external tooth (9-1) of spline overcoat (9) and interior axial teeth groove (4-1) the formation bearing fit of shell (4), the internal tooth (9-2) of spline overcoat (9) meshes with the external tooth (7-2) of internal tooth casing (7) left end, compression spring (10) withstands on the left side of spline overcoat (9), one end of pin (14) is captiveed joint with spline overcoat (9), and the other end of pin (14) is positioned at the left side that sliding sleeve (12) is gone up screw inclined plane (12-1).

2, automobile spindle nose power-transfer clutch according to claim 1 is characterized in that outer snap ring (5) is stuck in shell (4) and goes up internal gland (8) fixing.

3, automobile spindle nose power-transfer clutch according to claim 1 is characterized in that the inside and outside both sides that boss (7-3) on the internal tooth casing (7) and outer snap ring (6) are located at internal gland (8) respectively.

4, automobile spindle nose power-transfer clutch according to claim 1 is characterized in that being provided with seal ring (11) between the left side wall (4-2) of adjusting knob (1) and shell (4).

5, automobile spindle nose power-transfer clutch according to claim 1, it is characterized in that on adjusting knob (1) right flank, being provided with blind hole (1-1), in blind hole (1-1), be provided with little spring (2), there is a steel ball (3) in the outside of little spring (2), the outside at the left side wall (4-2) of shell (4) is provided with hemispherical dimples (4-3), and steel ball (3) embeds in the pit (4-3).