CN204628458U

CN204628458U - A kind of stepless change motive bearing

Info

Publication number: CN204628458U
Application number: CN201520199081.2U
Authority: CN
Inventors: 袁廷华
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-03
Filing date: 2015-04-03
Publication date: 2015-09-09
Anticipated expiration: 2025-04-03

Abstract

The utility model discloses a kind of stepless change motive bearing, include bearing initiatively inner ring, the driven outer ring of bearing and oscillating tooth assembly; The periphery of bearing active inner ring is provided with a circle oscillating tooth groove, and oscillating tooth assembly embeds in corresponding oscillating tooth groove one by one, and oscillating tooth groove bottom is communicated with high pressure filler opening; The inner peripheral surface of the driven outer ring of bearing is reducing face, and reducing face is divided into multiple halves, and the reducing size and Orientation of each halves is equal, fits in outer end and the reducing face of oscillating tooth assembly.The utility model can make bearing be delivered to bearing outer ring asynchronous for the power of bearing inner race in rotation process, stepless change can be realized by the adjustment of high pressure oil pressure, high efficiency, high pulling torque, variable transmission can be realized, there is radial dynamical balancing simultaneously, noise is little, compact structure, volume are little, the advantage of low cost of manufacture.

Description

A kind of stepless change motive bearing

Technical field

The utility model relates to mechanical transmission fields, specifically a kind of stepless change motive bearing with clutch function.

Background technique

Current industrial speed changer major part is the speed changer that speed ratio is fixed; What on automobile, major part was equipped with has gear automatic speed variator (AT), and transmission efficiency is low, making is complicated, cost is high; The driven wheel of existing buncher (CVT) carrys out transferring power by friction, and this transfer mode can not realize high pulling torque power transmission.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of stepless change motive bearing, bearing can be made in rotation process to be delivered to bearing outer ring asynchronous for the power of bearing inner race, can realize stepless change by the adjustment of high pressure oil pressure.

The technical solution of the utility model is:

A kind of stepless change motive bearing, includes bearing initiatively inner ring, the driven outer ring of bearing and oscillating tooth assembly; The periphery of described bearing active inner ring is provided with a circle oscillating tooth groove, and described oscillating tooth assembly embeds in corresponding oscillating tooth groove one by one, and oscillating tooth groove bottom is communicated with high pressure filler opening; The inner peripheral surface of the driven outer ring of described bearing is reducing face, and reducing face is divided into multiple halves, and the reducing size and Orientation of each halves is equal, fits in outer end and the reducing face of described oscillating tooth assembly.

each oscillating tooth of described oscillating tooth assembly includes oscillating tooth and props up and claim body and be connected to oscillating tooth to prop up the roller oscillating tooth gear claiming external end, and the sidepiece that described oscillating tooth props up title body relative with oscillating tooth groove has multiple notch.

Described stepless change motive bearing also includes oscillating tooth speed variator system; Oscillating tooth speed variator system includes Transmission Ratio Control unit, and the high pressure oil pump be connected with Transmission Ratio Control unit respectively, bearing driven outer ring velocity transducer, speed ratio Setting signal input end, bearing be inner ring tach signal input end initiatively; The high-pressure oil outlet of described high pressure oil pump is communicated with high pressure filler opening, described bearing driven outer ring velocity transducer is arranged on the driven outer ring of bearing, and described speed ratio Setting signal input end, bearing active inner ring tach signal input end is connected with System Control Center.

The outer circumferential face of the driven outer ring of described bearing is Power output face, is teeth, roller or circumferential surface form.

Described high pressure filler opening is arranged on bearing active inner ring, and bearing active inner ring is provided with high-pressure oil passage, and described high pressure filler opening is communicated with oscillating tooth groove bottom by high-pressure oil passage.

Advantage of the present utility model:

Oscillating tooth assembly in the utility model contacts with reducing face, makes stepless change motive bearing of the present utility model that comparatively high pulling torque can be provided to export; The halves in the reducing face in the utility model is multiple, and the reducing size and Orientation of each halves is equal, so transferring power is relative to center of circle radial equilibrium, does not have eccentric force.

The utility model can make bearing be delivered to bearing outer ring asynchronous for the power of bearing inner race in rotation process, stepless change can be realized by the adjustment of high pressure oil pressure, high efficiency, high pulling torque, variable transmission can be realized, there is radial dynamical balancing simultaneously, noise is little, compact structure, volume are little, the advantage of low cost of manufacture.

Accompanying drawing explanation

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

Fig. 2 is the structural representation of the utility model oscillating tooth assembly.

Fig. 3 is the structural representation of the utility model oscillating tooth speed variator system.

Fig. 4 the utility model rotates the force analysis figure of acting.

Fig. 5 the utility model oscillating tooth assembly and reducing face portion force analysis figure, wherein, 21 represent that oscillating tooths represent the vertical line of cambered surface tangent line 21 at the cambered surface tangent line 21,22 of A segmental arc and reducing face point of contact, and 23 expression oscillating tooths are at A segmental arc and the reducing face point of contact line to bearing active inner ring 1 center of circle.

Fig. 6 is the utility model speed Control computing FB(flow block).

Embodiment

See Fig. 1, a kind of stepless change motive bearing, include bearing initiatively inner ring 1, the driven outer ring 2 of bearing, oscillating tooth assembly 3 and oscillating tooth speed variator system; The periphery of bearing active inner ring 1 is provided with a circle oscillating tooth groove 4, and oscillating tooth assembly 3 embeds in corresponding oscillating tooth groove 4 one by one, and is communicated with by high-pressure oil passage 6 with the high pressure filler opening 5 on bearing initiatively inner ring bottom oscillating tooth groove 4; The inner peripheral surface of the driven outer ring 2 of bearing is reducing face 7, outer circumferential face is Power output face 8, be teeth, roller or circumferential surface form, and reducing face is divided into three halves, the reducing size and Orientation of each halves is equal, fits in outer end and the reducing face of oscillating tooth assembly 3.

See Fig. 2, each oscillating tooth of oscillating tooth assembly 3 includes oscillating tooth and props up title body 31 and be connected to the roller oscillating tooth gear 32 that oscillating tooth props up title body 31 outer end, and oscillating tooth props up and claims body 31 sidepiece relative with oscillating tooth groove 4 all to have the circular notch 33 of row.

See Fig. 3, oscillating tooth speed variator system includes Transmission Ratio Control unit 61, and the high pressure oil pump 62 be connected with Transmission Ratio Control unit 61 respectively, bearing driven outer ring velocity transducer 63, speed ratio Setting signal input end 64, bearing be inner ring tach signal input end 65 initiatively; The high-pressure oil outlet 66 of high pressure oil pump is communicated with high pressure filler opening 5, and Transmission Ratio Control unit 61 gathers the fuel injection pressure signal of high pressure oil pump 62, exports control signal simultaneously, control the delivery pressure of high pressure oil by control output end to high pressure oil pump 63; Bearing driven outer ring velocity transducer 63 is arranged on the driven outer ring 2 of bearing, for gathering the tach signal of the driven outer ring 2 of bearing; And speed ratio Setting signal input end 64, bearing active inner ring tach signal input end 65 is connected with System Control Center 67, for obtaining the bearing initiatively tach signal of inner ring 1 and the speed ratio Setting signal of bearing active inner ring 1 and the driven outer ring 2 of bearing.

See Fig. 4, A1, A2 and A3 segmental arc is reducing face far from the descending segmental arc of the distance in the center of circle, so be that three bearings initiatively produce the segmental arc of tangential force in the driven outer rings 2 of inner ring 1 pair of bearing; B1, B2 and B3 segmental arc is reducing from the ascending segmental arc of the distance in the center of circle, and being the recovery radian section of oscillating tooth length, is that bearing does not initiatively produce the segmental arc of tangential force in the driven outer ring 2 of inner ring 1 pair of bearing.

See Fig. 2 and Fig. 5, when stepless change motive bearing works, bearing initiatively inner ring 1 drives oscillating tooth assembly 3 to be rotated counterclockwise, and oscillating tooth assembly 3, under the pressure effect of oscillating tooth groove 4 bottom high-pressure oil, compresses reducing face.When the change descending far from the distance in the center of circle of the reducing face of oscillating tooth process, oscillating tooth produces the directed force F B perpendicular to tangent plane to reducing face, the size of the high pressure oil pressure FB namely bottom oscillating tooth, FB is FB making a concerted effort to the tangential force FA that the torque force of bearing initiatively inner ring 1 decomposing force FC in the radial direction and bearing initiatively inner ring 1 produces; The reaction force that reducing face produces oscillating tooth assembly be simultaneously FB ", reaction force FB " and FB equal and opposite in direction, direction are contrary; When reducing face is ascending far from the distance in the center of circle, oscillating tooth outwards stretches under the effect of centrifugal force and hydraulic oil, the extreme length recovered in reducing face, and due to face, arc road sense of rotation dorsad, oscillating tooth does not produce rotation tangential force to reducing face; When reducing face is constant far from the distance in the center of circle, oscillating tooth freely rotates in reducing face; Oscillating tooth has an angle 90 ° of+α at cambered surface tangent line 21 and the point of contact of A segmental arc and reducing face point of contact to the line 23 in bearing active inner ring 1 center of circle, adjustment oscillating tooth groove offset angle, oscillating tooth is made only to bear cambered surface vertical by A section district, do not bear tangential force, reduce the hard power of oppose side wall when oscillating tooth moves in oscillating tooth groove.

See Fig. 4 and Fig. 5, when initiatively inner ring 1 drives oscillating tooth assembly 3 to be rotated counterclockwise, oscillating tooth assembly 3 applies to rotate circular arc tangential thrust FA to the driven outer ring 2 of bearing by three segmental arc A1, A2, A3, when this tangential thrust FA is greater than the driven outer ring of bearing 2 and be wound in the stiction of transmission between the carrier of bearing driven outer ring 2, the driven outer ring 2 of bearing is rotated counterclockwise; When bearing initiatively inner ring 1 rotate a circle to bearing driven outer ring 2 work be less than the driven outer ring 2 of bearing rotate a circle work time, namely the rotating speed N of bearing initiatively inner ring 1 is greater than the rotating speed M of the driven outer ring 2 of bearing; The pressure of increasing high pressure oil, the tangential thrust FA that the driven outer ring 2 of bearing active inner ring 1 pair of bearing produces, also with strengthening, makes the bearing active rotating speed N of inner ring 1 and the rotating speed M speed difference of the driven outer ring 2 of bearing diminish, i.e. transmission speed ratio raising; When the bearing tangential thrust FA that initiatively inner ring 1 pair of bearing driven outer ring 2 produces is less than or equal to the driven outer ring of bearing 2 and is wound in the stiction of transmission between the carrier of bearing driven outer ring 2, bearing driven outer ring 2 is static, and bearing initiatively inner ring 1 dallies in the driven outer ring 2 of bearing;

Three halves arc shapes are consistent, so tangential thrust FA is also consistent, and the balanced radial force of bearing.

See Fig. 6, speed Control computing FB(flow block), 71 is transformation rate calculator, calculate the real transform speed ES of bearing active inner ring 1 and the driven outer ring 2 of bearing, 72 is speed error comparator, calculate the error value E R of real transform speed ES and the given transformation rate RP of system, then calculated the control output signal value DO needed needed for high pressure oil pump 63 by computing controller 73, make fuel pump output pressure be adjusted to pressure required for the transmission speed ratio of needs.

Claims

1. a stepless change motive bearing, is characterized in that: include bearing initiatively inner ring, the driven outer ring of bearing and oscillating tooth assembly; The periphery of described bearing active inner ring is provided with a circle oscillating tooth groove, and described oscillating tooth assembly embeds in corresponding oscillating tooth groove one by one, and oscillating tooth groove bottom is communicated with high pressure filler opening; The inner peripheral surface of the driven outer ring of described bearing is reducing face, and reducing face is divided into multiple halves, and the reducing size and Orientation of each halves is equal, fits in outer end and the reducing face of described oscillating tooth assembly.

2. a kind of stepless change motive bearing according to claim 1, it is characterized in that: each oscillating tooth of described oscillating tooth assembly includes oscillating tooth and props up and claim body and be connected to oscillating tooth to prop up the roller oscillating tooth gear claiming external end, and the sidepiece that described oscillating tooth props up title body relative with oscillating tooth groove has multiple notch.

3. a kind of stepless change motive bearing according to claim 1, is characterized in that: described stepless change motive bearing also includes oscillating tooth speed variator system; Oscillating tooth speed variator system includes Transmission Ratio Control unit, and the high pressure oil pump be connected with Transmission Ratio Control unit respectively, bearing driven outer ring velocity transducer, speed ratio Setting signal input end, bearing be inner ring tach signal input end initiatively; The high-pressure oil outlet of described high pressure oil pump is communicated with high pressure filler opening, described bearing driven outer ring velocity transducer is arranged on the driven outer ring of bearing, and described speed ratio Setting signal input end, bearing active inner ring tach signal input end is connected with System Control Center.

4. a kind of stepless change motive bearing according to claim 1, is characterized in that: the outer circumferential face of the driven outer ring of described bearing is Power output face, is teeth, roller or circumferential surface form.

5. a kind of stepless change motive bearing according to claim 1 or 3, it is characterized in that: described high pressure filler opening is arranged on bearing active inner ring, and bearing active inner ring is provided with high-pressure oil passage, described high pressure filler opening is communicated with oscillating tooth groove bottom by high-pressure oil passage.