CN2398133Y

CN2398133Y - Differential mechanism without semi-axle

Info

Publication number: CN2398133Y
Application number: CN 99214074
Authority: CN
Inventors: 曹玉海; 王玉珠; 杨延波
Original assignee: LUYAN MANCHINERY FACTORY SHANDONG
Current assignee: LUYAN MANCHINERY FACTORY SHANDONG
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-09-27
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to a differential mechanism without a semiaxis, which comprises two groups of ratchet wheels 14, a ratchet pawl 13 and a spring 12; ratchet wheels 14 are sheathed on both ends of a car axis, the ratchet pawl 3 is arranged on a hub assembly 1A of the car axis, and the end part of the ratchet pawl 13 is abutted on the concave surface of a ratchet 14A of the ratchet wheel under the action of the spring 12. When the vehicles straightly run, two sets of the ratchet wheels 14 drive the ratchet pawl 13 to synchronously rotate, when the vehicles turn, one vehicle wheel rotate following the engagement of the ratchet pawl of the ratchet wheel, the 13 on the other vehicle wheel is disengaged with the ratchet wheel 14A to slide, the differential speeds of the two vehicle wheels are ensured, and the turning is flexible. The utility model has the advantages of simple structure, small size, convenient installation and maintenance and low manufacture cost and is suitable for the use in light vehicles.

Description

The without semi-axle diff

The utility model relates to a kind of for motor vehicle diff, particularly a kind of without semi-axle diff.

On vehicle, general employing differential gear in the vehicle of three-wheel, especially four-wheel makes two wheels produce slide relative to ground so that coaxial two wheels are unlikely when turning owing to turn radius is different.Make the tire side wear.The diff that adopts is the semiaxis form, is contained in the rear-axle casing and a whole set of gear train is arranged, mechanism's complexity, installation and maintenance difficulty.The diff of this semiaxis formula is suitable for using on the bigger motor-tricycle of automobile or load carrying ability, but on load carrying ability less light-duty three-wheel or four-wheeled, this semiaxis formula diff is then because the complicated huge installation and maintenance difficulty of mechanism increases the vehicle cost.

The utility model purpose provides a kind of without semi-axle diff, and it is simple in structure, volume is little, and installation, maintenance is convenient, and manufacturing cost greatly reduces, and can guarantee differential function.

The utility model is realized by following technical scheme.It comprises two groups of ratchets 14, ratchet 13, spring 12, ratchet 14 respectively is sleeved on the two ends of axletree 1, and spring 12 and ratchet 13 are contained on the wheel nave assembly 1A, under the effect of spring 12, the end of ratchet 13 is supported to the concave surface of the ratchet 14A of ratchet 14, and ratchet 13 is contained on the pawl axis 21.Pawl axis 21 is to be contained on the hub unit 1A of wheel.This axletree 1 is contained on the bearing 15 in the axletree bearing 17, hub unit 1A comprises the disc 9 that is arranged in order, wheel hub 10, flange 11, the three is packed on the excircle of axletree bearing 17, spring 12 and ratchet 13 are housed in the groove 10A of wheel hub 10, on the relevant position of axletree bearing 17, have breach 17A, the end of ratchet 13 is stretched into from here, two ends of pawl axis 21 are installed on flange 11 and the disc 9, one end of spring 12 is against on the wall of groove 10A, and the other end is against the back of ratchet 13.In use, when vehicle is kept straight on, this axletree 1 of drive power source rotates, be fixed on the cover of two on the axletree 1 ratchet 14 rotates thereupon, because the end of ratchet 13 on the concave surface of the ratchet 14A that is against ratchet under spring 12 effects, drives ratchet 14A and through pawl axis 21 power is reached on the hub unit 1A when ratchet rotates, hub unit 1A is rotated together with the tire on its periphery, the wheel at axletree 1 two ends rotates synchronously, makes vehicle directly to advancing.When turning, because the turn radius difference of coaxial two wheels, a wheel rotates with the click engagement, and the ratchet 13 on the another wheel slides with the ratchet 14A jump out of mesh of ratchet 14, guarantee the differential when coaxial two wheels are turned, make and turn flexibly.Become after waiting to turn when directly marching forward, still the rotation by axletree 1 drives two groups of ratchet and pawl arrangement advanced in unison.

In sum, the utility model without semi-axle diff has been owing to adopted ratchet and pawl arrangement, makes advanced in unison under two wheels on the same axis can the driving at propulsion source, when turning or running into obstacle, can be under this group of click jump out of mesh slip effect, differential advances.This mechanism is simple, volume is little, and installation, maintenance is convenient, and manufacturing cost greatly reduces, and can guarantee differential function.The utility model is applicable on light-duty three-wheel or the four wheeler and adopts.

Do concrete introduction with embodiment below.

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the A-A cutaway view among Fig. 1,

As Fig. 1, shown in 2, ratchet 14 is contained on the axletree 1 that is supported by bearing 15 through key 16, spring 12 and ratchet 13 are contained on the wheel nave 1A of axletree 1, this wheel nave assembly 1A comprises the disc 9 that is arranged in order among Fig. 1, wheel hub 10, flange 11, the three is packed on the excircle of axletree bearing 17 and links into an integrated entity, as spring 12 and ratchet 13 are housed in the groove 10A of Fig. 2 on wheel hub 10, on the relevant position of axletree bearing 17, have breach 17A, the end of ratchet 13 is stretched into from here, two ends of pawl axis 21 are installed on flange 11 and the disc 9, one end of spring 12 is against on the wall of groove 10A, the other end is against the back of ratchet 13 by pin 20 location, the end of ratchet 13 is stretched into from breach 17A, this end is positioned on the concave surface 14B of ratchet 14A, guarantee its transmission, in the outer cover of wheel hub 10 the tire (not shown) is housed as Fig. 1; The compartment (not shown) is housed on the compartment bearing seat 18, compartment bearing seat 18 does not rotate, and bearing 5 is housed on it, and this bearing 5 is supporting the axletree 1 of this transmission power, baffle plate 19 and compartment bearing seat 18 solder togethers, shaft of brake hoof 7 is housed on the baffle plate 19, brake shoe brake cheek 8 is housed on the shaft of brake hoof 7, control the action of this brake shoe brake cheek 8 by being contained in dial axis 6 on the baffle plate 19, work as glancing impact, this dial axis 6 is ordered about rotation, and the cam 6A of its end opens brake shoe brake cheek 8, and wheel hub 10 is braked from endoporus.Figure 1 shows that the car wheel structure of whole axletree 1 one ends, the other end is equipped with a same wheel, drives two wheels by axletree 1 and rotates synchronously.Sprocket wheel 4 through overlap 2, key 3 is connected with axletree 1.When vehicle directly when travelling, drive sprocket wheel 4, axle 1, ratchet 14 rotations by chain, because the end of ratchet 13 is on the concave surface 14B of the ratchet 14A that is against ratchet 14 under spring 12 effects, ratchet 14 drives ratchet 14A when rotating and through ratchet axle 21 power is reached on the wheel hub 10 of hub unit 1A, hub unit 1A is rotated together with the tire (not shown) on its periphery, two wheels rotate synchronously, the vehicle straight forward.When turning, because the turn radius difference of coaxial two wheels, a wheel is with the click engaged transmission, and the ratchet 13 on the another wheel slides along the ratchet 14A clockwise direction jump out of mesh of ratchet 14.Guarantee the differential when coaxial two wheels are turned, make and turn flexibly, again directly when advancing, still drive two ratchet and pawl arrangements and make two wheel 1 advanced in unison after the turning by the rotation of axletree.

Claims

1, without semi-axle diff, it is characterized in that: it comprises two groups of ratchets (14), ratchet (13), spring (12), ratchet (14) respectively is sleeved on the two ends of axletree (1), spring (12) and ratchet (13) are contained on the wheel nave assembly (1A), under spring (12) effect, the end of ratchet (13) is against on the concave surface of ratchet (14A) of ratchet (14).

2, without semi-axle diff according to claim 1 is characterized in that: described ratchet (13) is contained on the pawl axis (21), and this pawl axis (21) is contained on the hub unit (1A).

3, without semi-axle diff according to claim 1, it is characterized in that: described axletree (1) is contained on the interior bearing (15) of axletree bearing (17), this hub unit (1A) comprises the disc (9) that is arranged in order, wheel hub (10), flange (11), the three is packed on the excircle of axletree bearing (17), spring (12) and ratchet (13) are housed in the groove (10A) on wheel hub (10), on the relevant position of axletree bearing (17), have breach (17A), the end of ratchet (13) is stretched into from here, two ends of pawl axis (21) are installed on flange (11) and the disc (9), one end of spring (12) is against on the wall of groove (10A), and the other end is against the back of ratchet (13).