CN2784229Y

CN2784229Y - Automobile resistance absorber

Info

Publication number: CN2784229Y
Application number: CN 200520089825
Authority: CN
Inventors: 马春如
Original assignee: Individual
Current assignee: Ma Chun Like; Ren Yueming
Priority date: 2005-03-21
Filing date: 2005-03-21
Publication date: 2006-05-31
Anticipated expiration: 2015-03-21

Abstract

The utility model relates to a drag reduction device for a vehicle, which belongs to the technical field of vehicle parts. The utility model is provided with an outer sleeve, an inner drag reduction sleeve and a sliding sleeve, wherein inner ratchets are arranged on an inner hole of the outer sleeve; ratchet pawls are arranged on the inner drag reduction sleeve. The outer sleeve is connected with the inner drag reduction sleeve by the ratchet pawls. When the vehicle runs post, a differential mechanism of the vehicle which is connected with the outer end of the outer sleeve drives a vehicle ball cage which is connected with the inner drag reduction sleeve to rotate. When the engine stops and the vehicle runs through inertia, the outer sleeve and the inner drag reduction sleeve are automatically disengaged from connection, and only wheels rotate, therefore the utility model realizes the purposes that the abrasion of a gearbox is reduced and the fuel oil is saved. In order to realize backup, inside slip teeth on the sliding sleeve can be engaged with external teeth of the outer sleeve by a fork. The tooth shape of the external teeth and the inside slip teeth is positively and negatively inverted cone teeth. When one ratchet pawl is inserted in the inner ratchets, the adjacent ratchet pawls are in the state to be inserted. The constructional characteristic successfully solves the technical problems that the existing external teeth of a vehicle glider and the inside slip teeth are automatically easy to disengage, and the impact of the ratchet pawls to the inner ratchets is big.

Description

The automobile resistance-reducing device

Technical field

The utility model relates to a kind of automobile resistance-reducing device that belongs to the vehicle part technical field.

Background technology

Car transmissions and drive wheel in using at present connect as one all the time, engine power through driving system to drive wheel, receive cunningly when capable when vehicle, wheel drives said system running as usual because inertia is still counter, has so just aggravated the wearing and tearing of change-speed box and the unnecessary consumption of fuel.The patentee once disclosed a kind of automobile glider at utility model patent 91219168.2 and utility model patent 98206609.0 and utility model patent 99208522.5 and (was also referred to as the automobile resistance-reducing device, automotive energy saving device), it is by between automobile differential and automobile ball cage a device that has the click structure being set, when automobile fuel filler gives it the gun, whole drive system is running as usual, when automobile is received cunning when capable, this device breaks away from automobile differential and automobile ball cage, a part of gear of car transmissions and change speed gear box does not rotate with wheel like this, thereby reaches the purpose that reduces the change speed gear box wearing and tearing and save fuel oil.Through the patentee's in-depth study, above-mentioned three kinds of patents also exist the reliability of reversing parts work not high, occur the engagement break-off sometimes, exist ratchet that the ratchet internal tooth is impacted bigger problem in addition.

Summary of the invention

The purpose of this utility model is exactly to provide a kind of functional reliability height and ratchet that the ratchet internal tooth is impacted little automobile resistance-reducing device for solving disadvantages of background technology.

The purpose of this utility model is achieved in that the utility model is provided with overcoat, this cover of drag reduction, can originally puts the slip cap of slip at drag reduction, endoporus at overcoat is processed with interior ratchet, on the periphery of overcoat, be processed with external tooth, on slip cap, be processed with interior slip teeth, external tooth can slide into and skid off interior slip teeth, originally put at drag reduction and to be processed with pawl slot and ratchet is housed in pawl slot, external tooth profile of tooth and interior slip teeth profile of tooth are positive and negative back taper tooth, during ratchet, its adjacent ratchet was in and is inserted into the position in ratchet inserted.

The utility model is compared background technology and had following advantage: 1. in external tooth slides into during slip teeth, because their profile of tooth is one positive one instead to bore tooth, the engagement of external tooth and interior slip teeth is difficult for throwing off voluntarily, and it is more reliable that reversing automobile is operated; 2. because not all ratchet sticks into interior ratchet simultaneously, so ratchet internal ratchet of when work impacts less.

Description of drawings

Fig. 1 is the utility model structure principle chart.

Fig. 2 is Figure 1A-A cutaway view.

Fig. 3 is the slip cap front view.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the overcoat front view.

Fig. 6 is Fig. 5 left view.

Fig. 7 is the external tooth M place enlarged drawing of Fig. 5.

The specific embodiment

The utility model is further described by embodiment below in conjunction with accompanying drawing: as shown in Figure 1 and Figure 2, overcoat 1 outer end is connected with automobile differential, drag reduction originally overlaps 2 outer ends and is connected with automobile ball cage, on this cover of drag reduction 2, be provided with pawl slot, in pawl slot, be provided with spring 4 and ratchet 5, during the utility model work, in the interior ratchet that ratchet 5 insertion overcoats 1 endoporus is provided with, when automobile fuel filler quickens, overcoat 1 drives this cover of drag reduction 2 and rotates together, automobile is received cunning when capable, and overcoat 1 breaks away from this cover of drag reduction 2 and is connected (having only four wheel at this moment).The quantity of ratchet 5 is 2-5, and during ratchet, its adjacent ratchet was in non-insertion state in a ratchet 5 inserted, and when transferring to overtake like this behind the reversing automobile again, the ratchet impact is less in 5 pairs on the ratchet.As Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the main effect of slip cap 3 is to realize car-backing function for automobile when the utility model is installed, stirring slip cap 3 by shift fork during reversing moves to left, the interior slip teeth 7 that this moment, slip cap 3 was provided with meshes with the external tooth 6 that overcoat 1 is provided with, thereby integral body of overcoat 1 and 2 formation of this cover of drag reduction realizes smooth car-backing function like this.Break away from voluntarily for after the interior slip teeth 7 that prevents slip cap 3 and external tooth 6 engagements, interior slip teeth 7 is made into positive and negative back taper tooth with external tooth 6, thereby makes their positive engagement work.

Claims

1, a kind of automobile resistance-reducing device, it is provided with overcoat, this cover of drag reduction, can originally puts the slip cap of slip at drag reduction, endoporus at overcoat is processed with interior ratchet, be processed with external tooth on the periphery of overcoat, be processed with interior slip teeth on slip cap, external tooth can slide into or skid off interior slip teeth, originally put at drag reduction and to be processed with pawl slot and ratchet is housed in pawl slot, it is characterized in that external tooth profile of tooth and interior slip teeth shape are positive and negative back taper tooth, during ratchet, its adjacent ratchet was in and is inserted into the position in ratchet inserted.