CN2303978Y - Vector-resultant type epicyclic-gear stepless speed-changer - Google Patents

Abstract

The utility model relates to a vector-resultant type stepless speed-changer with a planetary gear. Power from a shaft 1 rotates a gear 3 which is engaged with gears 2, 4 which are engaged with a gear 5 on a shaft 6; another gear 7 on the shaft 6 is engaged with gears 9, 14 on a shaft 8; shafts 15, 16 are fixed on a casing 17 which can rotate on the shaft 1; a gear 18 which is arranged on the casing 17 is engaged with a gear 19 fixed on an oil pump 20 which is connected with an oil motor 21 via a control system 22; a gear 23 is engaged with a gear 10 on the oil motor; a gear 13 is engaged with the gears 9, 14; the gears 13, 10 are duplicate gears. The speed changer has the advantages of high efficiency, large ranged of speed change, small dimension of external shape and good operating performance.

Description

Vector synthetic type planet gear stageless speed variator

The utility model relates to a kind of velocity vector synthetic type planet gear stageless speed variator, belongs to the mechanical transmissioning technology field, can be used as the gear of vehicle, boats and ships, locomotive, lathe, textile machinery, chemical machinery, mining machinery, petroleum machinery.

Application number 93230613.6 discloses a kind of planet gear stageless speed variator, this speed changer has solved shortcomings such as stepless speed variator complex structure, transmission efficiency in the past is low, processing difficulties, but because this speed changer is that power loss is bigger by the break speed Control process of participating in the overall process.

The objective of the invention is: overcome the shortcoming that existing stepless speed variator exists, a kind of velocity vector synthetic type planet gear stageless speed variator is provided.

The object of the present invention is achieved like this: prime mover drives a cone gear by axle, this cone gear is meshed with two cone gears again, these two cone gears are meshed with a cone gear during a duplex cone gear is again, another cone gear in the duplex cone gear is installed in the cone gear at two ends of the vertical axle of output shaft with two other again and is meshed; The axle of two cone gears is fixed on the rotary housing, also fix a cylindrical gears on the housing, housing can rotate to the axle of cone gear at prime mover, cylindrical gears on the housing again be fixed on oil pump shaft on cylindrical gears be meshed, and on the output shaft of the oil motor that drives by oil pump a cylindrical gears is arranged also, this cylindrical gears is meshed with cylindrical gears in the duplicate gear that can rotate on output shaft again, and the cone gear on the duplicate gear also is meshed with the cone gear that is installed in the vertical axle two ends of output shaft.

The planet gear stageless speed variator that the utility model provides, compare with current now various stepless speed variators, have some advantages like this: at first, its transmission efficiency height, consumption of power own is few, therefore, need install this speed changer on the equipment of speed change various, in output power one regularly, can save installation power, installation power one regularly can multi output power; Secondly, this speed changer scope is big, and gear ratio is 0-18; The 3rd, its external dimension are little, compact structure, and this stepless speed variator can be installed in every space that now current stepless speed variator can be installed; The 4th, manoeuvring performance is good, can pass through---and the liquid operation control system is realized peace button formula maneuverability pattern, also can use the lever-type control system; The 5th, transmitted power is big, and the transmitted power of this kind stepless speed variator is hard-core theoretically.

Further introduce the utility model below by accompanying drawing.

Accompanying drawing 1 is the utility model schematic diagram.

Working procedure of the present utility model is such: the power that prime mover transmits is by axle 1 input, be cemented in cone gear 1 quilt axle 1 driven rotary on the axle 1, cone gear 3 is meshed with cone gear 2,4 again, cone gear 2,4 again with left side axle 6 is installed on the duplex cone gear in cone gear 5 be meshed, and another cone gear 7 that is installed on the axle 6 is meshed with the cone gear 9,14 that is fixed on vertical axle 8 two ends of output shaft 12.The axle 15 of cone gear 2 is fixed on the housing 17 with the axle 16 of cone gear 4, housing 17 can rotate on input shaft 1, also be fixed with cylindrical gears 18 on the housing 17, cylindrical gears 18 is meshed with cylindrical gears 19 again, and cylindrical gears 19 be fixed on oil pump 20 the axle on, oil pump 20 links by fluid power control section 22 with oil motor 21, be that oil pump 20 is driving oil motor 21, be fixed with cylindrical gears 23 on the output shaft of oil motor 21, cylindrical gears 23 is meshed with cylindrical gears 10 in the duplicate gear 11 that can rotate on output shaft 12 again, another cone gear 13 on the duplicate gear 11 also with cone gear 9,14 are meshed.

When prime mover (internal-combustion engine or motor) is imported power by axle 1, when promptly axle 1 rotates, if the Joystick of hydraulic control system 22 (or control peace button place) is when stop position at this moment, control system 22 is not worked, because the effect of external load, cone gear 9 and 14, duplicate gear 1 reaches, duplicate gear 5 and 7 does not rotate, therefore, the cone gear 3 that is fixed on the axle 1 just drives cone gear 2 and 4 rotations, this rotates and to be spatial rotation, be exactly cone gear 2 and 4 not only around axle 15 and 16 rotations, and drive axle 15 and 16 and rotate around input shaft 1, and because axle 15, the 16th, be fixed on the housing 18, because axle 15,16 rotation is also rotated housing 18 around axle 1, from and the garden stud wheel 18 that is fixed on equally on the housing is rotated, the mutually meshing with it cylindrical gears 19 that is installed on 20 in the oil pump is rotated.But because this moment, control system 22 was idle, so oil pump 20 do not work, and is in idling conditions.When hydraulic control system 22 was in working state, oil pump 22 also was in working state.Because oil pump 20 is coupled to each other with oil motor 21, oil pump 20 pump oil just drive oil motor 21 and rotate outputting power.By the rotating speed of how much also just having controlled oil motor 21 of control oil pump 20 output oil masses, be broken down into two-part by prime mover through the power vector of axle 1 input this moment, and a part passes to gear 9 and 14 by gear 3,2,4,5 and 7; Another part outputs to gear 23,10 by the oil motor 21 of hydraulic control system, also passes to gear 9 and 14 at last.Because varying in size of two-part velocity vector, the speed seat resultant vector after synthesizing is also different.Because the velocity vector size of control section one tunnel is continuously adjustable, thereby the velocity vector size that has influence on gear parts one tunnel also is continuously adjustable, so the velocity vector size after synthetic also is a continually varying, speed after synthetic is embodied by the rotational velocity size of axle 8 in the space, and axle 8 is fixedly connected with output shaft 12, so output shaft 12 speed are continuously adjustable.

When output speed reaches maximum value, control system is in idle complete closed state, this moment, internal system keep-uped pressure, but all elements quit work, have only a brake cylinder that roll-shell 18 is braked, housing is no longer rotated, and power is exported to output shaft 12 to gear 9 and 14 by gear 3,2,4,5 and 7 again.

Claims (1)

1, a kind of vector synthetic type planet gear stageless speed variator.Utilize resolution of vectors and the mode of synthesizing to realize stepless change, it is characterized by: prime mover drives cone gear (3) cone gear (3) by axle (1) and is meshed with cone gear (2), (4), and cone gear (5) engagement in cone gear (2), (4) and the duplex cone gear that is installed on the axle (6), cone gear (9), (14) on perpendicular (8) two ends of another cone gear (7) and output shaft (12) are meshed; Cone gear (2), (4) axle (15), (16) be fixed on and go up on the housing (17) that rotates at input shaft (1), cylindrical gears (18) is arranged on it, this gear is meshed with gear (19) on being fixed on oil pump (20) axle, oil pump (20) links by fluid power control section (22) with oil motor (21), cylindrical gears (23) on the oil motor (21), with can be in the engagement of the cone gear (13) in the duplicate gear (11) that output shaft (12) go up to rotate, another cone gear (10) on the duplex cone gear (11) also with cone gear (9), (14) engagement.Cone gear (9), (14) sky are enclosed within on the axle (8), and axle (8) is fixedly connected with output shaft (12).