CN2754926Y

CN2754926Y - Rear axle of beach buggy with reverse gear mechanism

Info

Publication number: CN2754926Y
Application number: CN 200420033356
Authority: CN
Inventors: 孙定忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-19
Filing date: 2004-03-19
Publication date: 2006-02-01
Anticipated expiration: 2014-03-19

Abstract

The utility model relates to a rear axle of a beach vehicle with a reverse gear mechanism, which comprises a main shaft, a wheel hub connecting plate and a shell body. The utility model is characterized in that a spline is arranged on the middle part of the main shaft; a positive bevel gear and an inverse bevel gear are arranged on both ends of the spline of the main shaft and are frequently engaged with a rotating bevel gear arranged in the shell body. A pin post is arranged between an inner hole of the positive bevel gear and the main shaft; a tooth handle spline of the positive bevel gear is matched with a chain disc. A spline sleeve is matched with the spline on the middle part of the main shaft; the lower end of a shifting fork arranged on the shell body is matched with the spline sleeve; the shifting fork is connected with a handle of the shifting fork. The utility model is suitable for a chassis structure of the beach vehicle and is cabinet and fine; the power transmission and the brake effect of a driving disc and a brake disc on the main shaft do not attenuate; the spline sleeve does left and right slide on the spline of the main shaft; thereby, the reverse gear can be easily realized.

Description

A kind of beach buggy back axle with reverse gear mechanism

Technical field

The utility model relates to Biodge device behind motor tricycles, the four-wheeled, about being specifically related to a kind of beach buggy back axle with reverse gear mechanism.

Background technology

Present beach buggy back axle is made up of housing, main shaft, chain drum and braking disc.Chain drum directly is enclosed within on the main shaft and rotates, and does not have the reverse gear function on this back axle.

In order to solve the problem of reversing gear, producer is provided with one group of gear in motorcycle gasoline engine, advances and could realize but will reduce one; High-output engine is because tooth case inner structure problem can not be installed reverse gear mechanism.

Summary of the invention

Goal of the invention of the present utility model provides a kind of beach buggy back axle with reverse gear mechanism, and it can solve beach buggy reverse gear problem.

For the real beach buggy reverse gear problem that solves, the technical solution of the utility model is to have added one group of gear dexterously in the middle of back axle, and the state that makes transmission chain drum, braking disc and connecting panel not change original position and effect is realized reverse gear down.

A kind of beach buggy back axle described in the utility model with reverse gear mechanism, comprise main shaft, be connected the main shaft two ends the wheel hub connecting panel, be located at the housing at main shaft middle part, it is characterized in that, middle part at main shaft is provided with spline, and forward helical wheel, reverse helical wheel correspondence are contained in the two ends of main spindle multiple spline and are positioned at housing; Be contained in rotation helical wheel and forward helical wheel and the oppositely normal interlock of helical wheel in the housing; Right part at forward helical wheel endoporus is provided with roller slot, the female splines of the key of roller slot and main shaft cover and the spline fitted on the main shaft or with main shaft on spline and the spline fitted on the forward helical wheel or with main shaft on spline and the spline fitted on the reverse helical wheel; Be located at the lower end of the shift fork on the housing and cooperate with fork groove on the spline housing, the upper end of shift fork is connected with the shift fork handle.Also comprise the left chain stay seat that is located at the housing left end, braking embrace pincers seat and oil sealing, with left chain stay seat bonded assembly brake disc adapter sleeve and brake disc, be located at the right chain stay seat of housing right-hand member.

The utility model also can adopt traditional wolf's fang tooth, and promptly the clutch tooth is enclosed within on the main spindle multiple spline and moves, and the shrinkage pool implementation that the wolf's fang tooth puts in forward helical wheel or reverse helical wheel end face turns to.

The utility model both had been suitable for chain-driving, was suitable for the shaft drive axle again. and when being applicable to shaft drive, rotating helical wheel and directly be connected cooperation, do not need to be provided with sprocket wheel with the mouth of driving engine.

The good effect of the utility model technology is: it adapts to beach buggy chassis structure, small and exquisite exquisiteness; Drive plate and brake disc do not weaken transmission of power and braking effect on main shaft; Spline housing horizontally slips on main spindle multiple spline, easily realizes reverse gear.

Description of drawings

Fig. 1 is that the utility model is used for the chain-drive structural representation.

Fig. 2 is that the utility model is used for driven off by shaft structural representation.

Fig. 3 is the structural representation of pattern chain cover.

Fig. 4 is reverse helical gear structural representation.

Fig. 5 is the helical gear structural representation of forward.

The specific embodiment

Embodiment one: the utility model is used for the chain-drive beach buggy.

Referring to Fig. 1, Fig. 3, Fig. 4 and Fig. 5, housing 16 is contained in the middle part of main shaft 1, forward helical wheel 2A and oppositely helical wheel 2B correspondence be contained in the two ends of main spindle multiple spline 7 and be positioned at housing; To rotate helical wheel 3 and be contained in the housing, and with forward helical wheel 2A and the oppositely normal interlock of helical wheel 2B; Roller 9 is contained between the right part roller slot 2C and main shaft of forward helical wheel endoporus, the helical gear tooth handle of forward spline 2E cooperates with chain drum 10; The female splines 4B of spline housing 4 is cooperated with spline 7 on the main shaft, be contained in the lower end of the shift fork 5 on the housing and cooperate with fork groove 4A on the spline housing, the upper end of shift fork 5 is connected with shift fork handle 6; Left chain stay seat 8B, braking armful pincers seat 11 and oil sealing 13 are contained in the left end of housing, and brake disc adapter sleeve 14 and brake disc 12 are connected with left chain stay seat 8B, simultaneously right chain stay seat 8A is contained in the right-hand member of housing; The two ends that two wheel hub connecting panels 15 are connected to main shaft get final product.

When the utility model was contained on the chain-drive beach buggy, the wheel hub connecting panel 15 at main shaft two ends was connected cooperation with wheel, and chain drum 10 is connected with the mouth of driving engine by messenger chain.During gearshift, pull shift fork handle 6, shift fork 5 is promptly stirred spline housing 4, when its female splines 4B when spline 7 on the main shaft cooperates, then be in neutral gear position; Cooperate when spline 7 on the female splines 4B of spline housing 4 and the main shaft and the spline 2D on the forward helical wheel, then wheel advances; When the spline 7 on the female splines 4B of spline housing 4 and the main shaft with when oppositely the spline 2D on the helical wheel cooperates, wheel retreats, thus the realization reverse gear.

Embodiment two: the utility model is used for driven off by shaft beach buggy.

Referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, present embodiment is not established roller slot at the right part of forward helical wheel endoporus, does not establish roller between forward helical wheel endoporus and main shaft yet, does not establish spline on the helical gear tooth handle of forward yet, does not assemble chain drum yet; Only will rotate the back handle lengthening of helical wheel 3, mouth direct and driving engine is connected and gets final product, and the installation of remaining part is identical with embodiment one with gear shift operation.

Claims

1, a kind of beach buggy back axle with reverse gear mechanism, comprise main shaft (1), be connected the main shaft two ends wheel hub connecting panel (15), be located at the housing (16) at main shaft middle part, it is characterized in that, be provided with spline (7) at the middle part of main shaft, forward helical wheel (2A), reverse helical wheel (2B) correspondence are contained in the two ends of main shaft (1) spline (7) and are positioned at housing (16); Be contained in rotation helical wheel (3) and forward helical wheel (2A) and the oppositely normal interlock of helical wheel (2B) in the housing; Right part at forward helical wheel (2A) endoporus is provided with roller slot (2C), at roller slot (2C). and be provided with roller (9) between the main shaft, and the tooth handle spline (2E) of forward helical wheel (2A) cooperates with chain drum (10); Female splines (4B) and fork slot (4A) are arranged on the spline housing (4); Spline housing (4) is contained on the spline (7) of main shaft (1), and respectively with forward helical teeth (2A), oppositely helical teeth (2B) cooperates; Be located at the lower end of the shift fork (5) on the housing and cooperate with fork slot (4A) on the spline housing, the upper end of shift fork (5) is connected with shift fork handle (6).

2, a kind of beach buggy back axle according to claim 1 with reverse gear mechanism, it is characterized in that, also comprise left chain stay seat (8B), braking armful pincers seat (11) and oil sealing (13) and a brake disc adapter sleeve (14) and a brake disc (12) that is located at the housing left end, the right chain stay seat (8A) that is located at the housing right-hand member.