CN2138215Y - Vehicle gear rotary stepless speed regulator - Google Patents

Abstract

The utility model discloses a vehicle gear rotary stepless speed regulator whose shape is a reducing cylinder. End caps are respectively arranged on the two ends, an input shaft and both shaft heads of an output gear shaft are arranged on the outer part of the cylinder, and are on the same axial line. The utility model is composed of a speed adjuster, a manipulationer, a reversing cart, and a back drawing braking. All the gears in the speed variator are engaged with each other, the utility model has no power interruption when the automobile changes speed, and the range of speed changing is continuity, that is from zero rotation to the maximum speed. Of an engine. The utility model can replace the existing speed changing boxes for vehicle use, and the utility model is worth spreading and applying technology.

Description

Vehicle gear rotary stepless speed regulator

The utility model is a kind of infinitely variable speed transmission, is particularly useful for the stepless change of automobile.

Many known, the automobile in travelling is speed per hour for a change, must dispose speed changer, and the speed changer that uses also exists some deficiency though can adapt to some needs of automobile at present.

1. for adapting to the variation of automobile running condition, gear shift frequently.When gear shift,, gear is impacted, even occur being difficult to the phenomenon of engage a gear sometimes because the rotating speed of the master who is engaged, driven gear is inconsistent.At this moment, must be adjusted rotating speed before the gear shift.For example: when changing to bottom gear, at first to unclamp throttle and clutch, remove top gear by top gear, loosen the clutch again after engaging clutch is opened the throttle then, the bottom gear of extension will be close by the pitch wheel rotating speed when making gear shift, so that engage a gear.This operating process is comparatively complicated, requires the driver to grasp opportunity, and has certain skilled operating technology.For this reason, to consume big muscle power during driver's stepping on clutch, easily produce tired.

2. the speed changer that uses at present is made up of some groups of gears, and the various combination of gear can obtain corresponding different gear, because the limited amount of gear train, so the speed change gear that obtains is also just limited.So be step change transmission at the speed changer that uses at present, the gear of speed changer is many more, can make full use of the efficient of motor more, to improve the power performance of automobile.For example: the two automobiles that structure is identical has been installed two kinds of different speed changers, and one is two gears, and another is the fourth gear position, and a grade of two speed changers and the speed ratio of direct high equate.At this moment, when two automobiles travelled with direct high on good highway, the max speed was identical with the ability that overcomes road resistance, and one grade starting ability is also identical with maximum gradeability.But it is big slightly at surface resistance, when not allowing to travel with direct high, situation is just different, and the former can only travel with one grade, and need turn down throttle, maximum speed of operation is low, and the latter can travel with second gear or third gear, allows throttle to open greatlyyer, so the utilization ratio of engine power is comparatively abundant, power performance is good, the average speed height, and Economy also improves thereupon.But in fact, the gear of speed changer can not be increased to a lot, otherwise will cause the difficulty of complex structure, heaviness and operation, and shift number has the more more increased the difficulty of shift control, and the muscle power that the driver consumes is just bigger.

3. fluid power----mechanical transmission:, make its advantage that has automatic stepless speed change within the specific limits, thereby can reduce the shift number in the vehicle traveling process owing to increased a fluid torque converter at mechanical transmission preceding.Basically do not have power to be interrupted when gear shift, can guarantee that automobile has good acceleration and higher average speed, this is the much progress in the automobile industry.Though fluid power----mechanical transmission has remedied some deficiency of mechanical transmission.But self is also depositing some shortcoming, compare with mechanical transmission, weight increase, complex structure, manufacturing difficulty, cost is higher, efficient is lower (for torque-converters, peak efficiency generally has only 82%～86%, mechanical transmission generally can reach 95%～97%) because efficient is low, the traction property of automobile and fuel-economy index all decrease.

Put down in writing according to the foreign patent document:

(1) U.S. Illinois John H cloth Rec Mr. Mo Li has applied for " Infinitly variable mechanical transmission ", application number 88103885.7, publication number CN1039092A, open day January 24 nineteen ninety;

(2) German patent DE UTSCHES PATENTAMT DE3615516A1;

(3) 2102532A GB(11 B. P. UK Patent Application(19)).

This three example all provides the speed change gear of differential gear series.

The purpose of this utility model:

The purpose of this utility model be make automobile in the gear-change operation process, avoid too complicated, loaded down with trivial details, gearshift procedure as the convenience of putting tap water, easily, simple.

2. make the efficient of motor reach the optimum state, power performance is good, average speed is high, acceleration and good economy performance.

3. improve the starting ability and the maximum gradeability of automobile, the function braking is started in uninterruptible power, stepless change under steam during the landslide, lower the speed of a motor vehicle.

4. provide that a kind of weight is lighter, simple in structure, easy to manufacture, cost is lower.

5. its power of can be directly obtaining from motor passes to output shaft from input shaft, speed can begin to the output speed of motor from zero turn-off, velocity variations in this scope has continuously, and the combination of external gear in utilizing, change turn to (being advancing or direction of retreat of automobile) of output shaft.

The purpose of this utility model is achieved in that it is by arrangements for speed regulation, speed governing operating device, ahead running device, anti-dragged brake device four parts are formed.All gears of speed changer inside all mesh, and automobile is unpowered interruption when speed change, and the initial rotating speed of transmission output shaft begins to the maximum speed of motor from zero turn-off.Structure is characterised in that shape is a reducing cylindrical body, two ends are provided with end cap (3) and (61), be divided into speed governing and fall by the intermediate clapboard that fuses with cylindrical shell along shelves two cylindrical body partly, two spindle noses of input shaft (59) and output gear shaft (7) are all in the cylindrical body outside, and on same shaft axis, input shaft (59) is equipped with bearing and oil sealing and rotor (58) uses bolton, bearing outside diameter on the input shaft is packed in the hole of end cap (61), for guaranteeing coaxality, the perpendicular bearing pin (49) in input shaft (59) axle center is housed on rotor (58), shaft-use elastic gear ring is equipped with at the bearing pin two ends respectively, bearing pin is positioned on the rotor (58), bearing pin is at the rotor inner chamber and with both sides, rotor center symmetry, two bevel gear wheels (54) endoporus cooperates with bearing pin (49), radial bearing and single direction thrust ball bearing are housed respectively, its effect is the axial float that bevel gear wheel could rotate and stop bevel gear wheel neatly with bearing pin, fork (55) is housed in the middle of two bevel gear wheels, with bolt and locating stud bevel gear wheel is fixed, needle bearing is housed on the spindle nose of fork (55) to be positioned in slip ring (43) mistake center and the hole in a straight line, slip ring is assemblied in the inner chamber of speed change guide groove (45), steel ball is equipped with in speed change guide groove both sides, and its effect is that slip ring and speed change guide groove and end ring can rotate flexibly.There were two spindle noses at center in the speed change guide groove outside, the axle center of the axle center of this spindle nose and input shaft (59) is contour, intersect vertically, on two spindle noses of speed change guide groove, be provided with the location, hole of bearing and casing, side on speed change guide groove external diameter is equipped with one section external toothing (90), and two spindle noses of external toothing and speed change guide groove intersect 90 degree and and input shaft axis parallel.The bevel pinion that is meshed with two bevel gear wheels is housed on rotor, bevel pinion and pinion shaft (29) are an integral body, the star-wheel (31) and the external gear (30) of free wheel device are housed on the small coning gear shaft, the outer hub of external tooth crop rotation free wheel device, external gear (30) and the external tooth engagement that is assemblied on the attachment tooth wheel shaft (13) in the casing (6), connect minor axis (37) and be fixed in rotor with bolt and taper pin, its other end is equipped with needle bearing and is assemblied in together in the hole of attachment tooth wheel shaft (13).Bevel pinion two spindle noses are equipped with needle bearing and tapered roller bearing respectively, tapered roller bearing bears axial force and is assemblied in bearing support (23) goes up (being the gland of rotor), bearing support and rotor are fixed with bolt, locating stud and are located, needle bearing is installed on the plane of rotor endoporus, crosses two holes at center.

The movement process of arrangements for speed regulation: when input shaft rotates, the drive rotor rotates, the bearing pin (49) that is installed in rotor also rotates thereupon and drives two bevel gear wheels and rotates around the input shaft axle center, owing to fixing fork (55) on the bevel gear wheel, and fork is assemblied in two of slip ring (43) holes of crossing axle center, rotates so slip ring is also done the input shaft axle center thereupon.Meanwhile: also make circular movement around the input shaft axle center with the conelet of bevel gear wheel engagement.Again because the gear on the attachment tooth wheel shaft (13) is intermeshing with being assemblied in the gear (30) that gear shaft (29) has a free wheel device, so the rotation of attachment tooth wheel shaft is continuous, and give the ahead running device of dividing plate transmission of power with right half by this part.

The structure of speed governing operating device: it is equipped with worm screw (65) by speed governing manipulation casing (64), a box house that is fixed on the casing (6), the end of worm screw stretches out outside the casing and handwheel and handle is housed, be used for the effect of speed governing, idle wheel of fit beneath (68) worm screw, half of this idle wheel is worm gear, and second half is a gear.Worm gear is meshed with worm screw, second half is that gear also is meshed with the one section external toothing (90) that is assemblied on the speed change guide groove outside, worm screw and axle of carrier pulley (67) all are equipped with single-row tapered roller bearing, with the axial float that prevents that axial force from producing, and can rotate neatly.

Its working principle: the operation speed-regulating handle drives the worm screw rotation, driving idle wheel (68) rotates, owing to the rotation of idle wheel, driven the gear ring rotation, because gear ring is the outside that is fixed on the speed change guide groove, so axial deflection must appear in the speed change guide groove, driven also deflection thereupon of slip ring (43) again, it is fixing to assemble fork (55) and bevel gear (54) in the slip ring, two bevel gear wheels at this moment: existing rotation around input shaft has self swing back and forth (being rotation motion) again.Meanwhile, bevel pinion (29) is gone up the external gear (30) that dress has free wheel device, because the folk prescription of free wheel device is to effect, two external gears (30) are made wheel and are changed jobs, added the load room at attachment tooth wheel shaft (13), the rotating speed of this part just reduces, and the deflection of speed change guide groove gets the load room that the more adds also just the more, at this moment the rotating speed of attachment tooth wheel shaft is just lower, can reach zero rotating speed (being that output speed is zero).

The ahead running device structure: attachment tooth wheel shaft (13) be equipped with splined and the location duplex external gear (89) move axially, on the duplex external gear, opened an annular groove, ahead running operating stem (79) is installed down in the groove, be fixed on the dividing plate of casing (6) by position shelf, position shelf (82) connects the ahead running operating stem and extends to the casing outside with bearing pin, be equipped with on the casing to handle and show position piece (84), this part is being carved direction of travel and " is being fallen " indication of " neutral gear " " suitable ", the part of output gear shaft (7) in casing is two internal gears not of uniform size and casing male splined shaft and a middle integral body that has the diameter of axle to connect, oil sealing and bearing are housed on the diameter of axle, the bearing outer rim is contained in location in the hole of end cap (3), end cap and casing bolt, splined shaft (8) is housed on the casing, double crosslinking medium wheel (10) is enclosed within on the splined shaft, with circlip for shaft (a 12) location block (11), the annular groove (immediate shipment is the same annular groove of ahead running operating stem) that block inserts the duplex external gear can move axially double crosslinking medium wheel and duplex external gear synchronously on the double crosslinking medium wheel.Splined shaft two spindle noses all are equipped with needle bearing, and wherein the needle bearing of a spindle nose is assemblied on the dividing plate of casing, and the other end is fixed on the bearing support (86, see parts drawing), and this bearing support is fixed on the dividing plate of casing with bolt and locating stud.

Its working principle: with pushing in the position of " falling " or " suitable " along operating grip (or bar), drive in the big internal gear that duplex external gear (89) and double crosslinking medium wheel (10) are done left and rightly to move axially on the attachment tooth wheel shaft, double crosslinking medium wheel inserts output shaft or duplex external gear (89) inserts in the small ring gear of output shaft by handle, so just can obtain output shaft just or position shown in counter steer (being reacted to automobile is direction of travel suitable or that the fall) figure be neutral position.

The anti-dragged brake device is because part sequence number (13) is the attachment tooth wheel shaft, it is again the star-wheel of free wheel device, sequence number (23) is a bearing support, it is again the outer hub of free wheel device, so (13) with (23) be combined into a free wheel device, when automobile comes down, former output gear shaft (7) has been converted to power, drive attachment tooth wheel shaft (13) and rotate, free wheel device has unidirectional, and work this moment, drive the part movement in the speed change gear, input shaft (59) rotates thereupon and is connected into one with the output gear shaft (7) of motor, so at this moment motor is made break and used.

The utility model can be given full play to the power of motor, makes vehicle dynamic quality good, average speed height, acceleration and good economy performance.

Now in conjunction with the accompanying drawings the utility model is narrated again.

Sequence number explanation (not numbering among the related standards part figure):

1. rubber oil seal with reinforce 2. bearings

3. end cap 4. hex head bolts

5. plain cushion 6. casings

7. output gear shaft 8. splined shafts

9. needle bearing 10. double crosslinking medium wheels

11. block 12. circlips for shaft

13. attachment tooth wheel shaft (star-wheel of free wheel device) 14. needle bearings

15. bearing 16. bearings

17. circlip for hole 18. spacers

19. roller 20 springs

21. baffle plate 22. Steel Cable Baffle Rings

23. bearing support (the outer hub of free wheel device) 24. outer-hexagonal bolts

25. plain cushion 26. bullet pads

27. taper pin 28. bearings

29. bevel pinion (pinion shaft) 30. external gears

31. star-wheel 32. flat keys

33. roller 34. springs

35. cover plate 36. needle bearings

37. connect minor axis 38. needle bearings

39. hexagon socket head cap screw 40. taper pins

41. end ring 42. hex head bolts

43. slip ring 44. steel balls

45. speed change guide groove 46. bearings

47. gland 48. hex head bolts

49. bearing pin 50. circlips for shaft

51. bearing 52. bearings

53. spacer 54. bevel gear wheels

55. fork 56. hexagon socket head cap screws

57. taper pin 58. rotors

59. input shaft 60. hex head bolts

61. end cap 62. glands

63. hex head bolt 64. is handled casing

65. worm screw 66. bearings

67. axle of carrier pulley 68. idle wheels

69. flat key 70. glands

71. gland 72. flat keys

73. acorn nut 74. speed change handwheels

75. gear change hand lever 76. hex head bolts

77. plain cushion 78. is handled ball

79. fall along operating handle 80. bearing pins

81. fastening screw trip bolt 82. position shelfs

83. hexagon socket head cap screw 84. is handled limiting stopper

85. sunk screw 86. bearing supports

87. hexagon socket head cap screw 88. taper pins

89. duplex external gear 90. external toothings

91. hexagon socket head cap screw

Description of drawings:

Fig. 1. center line is whole half section with the upper part;

The following position of center line is that speed governing operating device is the center half section with the worm screw;

Casing is not analysed and observe.

Fig. 2. be the A-A half section of Fig. 1.

Fig. 3. be the A-A half-twist half section of Fig. 2.

Fig. 4. be the B-B ladder half section of Fig. 1.

Fig. 5. be the C-C ladder half section of Fig. 1.

Fig. 6. be the D-D full section of Fig. 1.

Fig. 7. be the E-E full section of Fig. 6.

Fig. 8. be part (13) attachment tooth wheel shaft plan view, made broken section among the figure.

Fig. 9. the F-F that is Fig. 8 analyses and observe.

Figure 10. be part (68) idle wheel plan view.

Figure 11. be the full section of Figure 10.

Operation instruction (joining method):

Engine output shaft connects with input shaft (59) with clutch, and output shaft of gear-box (7) spindle nose is pitched to connect with transmission shaft direction joint and got final product.

Claims (1)

1, the shape of gear wheel stepless speed variator for vehicle is a reducing cylindrical body, two ends are provided with end cap (3) and (61), are divided into speed governing and are fallen along gear shift two cylindrical body partly by the intermediate clapboard that fuses with cylindrical shell, two spindle noses that it is characterized in that input shaft (59) and output gear shaft (7) are all in the cylindrical body outside, and on same shaft axis; Attachment tooth wheel shaft of installing on it (13) and the splined shaft (8) that becomes one with it and the duplex external gear (89) that is enclosed within this link: its structure is by arrangements for speed regulation, speed governing operating device, ahead running device, anti-dragged brake device four parts are formed; Arrangements for speed regulation are by input shaft (59) bearing and oil sealing and rotor (58) to be housed to use bolton, the bearing outside diameter of input shaft (59) is packed in the hole of end cap (6), the bearing pin vertical with its axle center (49) is housed on rotor, circlip for shaft is equipped with at the bearing pin two ends respectively, bearing pin is positioned on the rotor, bearing pin is at the rotor inner chamber and with the both sides symmetry at rotor center, in two bevel gear wheels (54) endoporus with bearing pin (49) though cooperate punishment that radial bearing and single direction thrust ball bearing be housed, bevel gear wheel (54) can rotate and stop the axial float of bevel gear wheel (54) neatly with bearing pin (49), fork (55) is housed in the middle of two bevel gear wheels, with bolt and locating stud fork is fastened on the bevel gear wheel, the dress needle bearing is positioned in slip ring (43) mistake center and the hole in a straight line on the spindle nose of fork (55), slip ring is assemblied in the inner chamber of speed change guide groove (45), speed change guide groove both sides are equipped with end ring (41) and are used bolton, between end ring and slip ring, steel ball is housed, there were two spindle noses at center in the speed change guide groove outside, this axle center and input shaft (59) axle center is contour, intersect vertically (promptly two shaft axiss intersect in spatial vertical), on two spindle noses of speed change guide groove, be provided with bearing, this bearing is packed in the endoporus of gland, and the external diameter of gland is packed in the hole of casing and used bolton; Side on speed change guide groove external diameter is equipped with one section external toothing (90), two spindle noses of external toothing and speed change guide groove intersect 90 degree and and the input shaft axis parallel, the bevel pinion (29) that is meshed with two bevel gear wheels is housed on rotor, bevel pinion and small coning gear shaft are whole, it or not assembling type, small coning gear shaft (29) is equipped with the star-wheel (31) and the external gear (30) of free wheel device, external gear (30) and the external tooth engagement that is assemblied on the attachment tooth wheel shaft (13) in the casing (6), connect minor axis (37) and be fixed on rotor with bolt and taper pin, its the other end is equipped with needle bearing and is assemblied in together in the hole of attachment tooth wheel shaft (13), two spindle noses of bevel pinion are equipped with needle bearing and tapered roller bearing respectively, tapered roller bearing bears axial force and is assemblied in bearing support (23) [being the gland of rotor], bearing support and rotor bolt, locating stud is fixed and is located.Needle bearing is assemblied on the plane of rotor endoporus, crosses in two holes at center; Speed governing operating device is to handle casing (64) by a speed governing that is fixed on the casing (6), box house is equipped with worm screw (65), the end of worm screw stretches out outside the casing and speed-regulating hand wheel and handle is housed, idle wheel of fit beneath (68) worm screw, half is worm gear for this idle wheel, second half is a gear, worm gear partly and worm meshing, gear partly be assemblied in the speed change guide groove outside on external toothing (90) be meshed; Worm screw and axle of carrier pulley (67) all are equipped with single-row tapered roller bearing; The ahead running device is to move axially at the duplicate gear (89) that attachment tooth wheel shaft (13) is equipped with splined and location, on the attachment tooth wheel shaft, opened an annular groove, ahead running operating handle (79) is installed down in the groove is fixed on the central diaphragm of casing (6) by position shelf, position shelf (82) connects the ahead running operating handle and extends to the casing outside with bearing pin.Be equipped with on the casing and handle limiting stopper (84), this part is being carved " falling ", " neutral gear " of direction of travel, the indication of " suitable "; Output gear shaft (7) is by two internal gears not of uniform size in the casing and outer splined shaft and the middle integral body that has the diameter of axle to connect of casing, and bearing and oil sealing are housed on the diameter of axle, and the bearing outer rim is assemblied in the hole of end cap (3) and locatees.End cap and casing bolton, splined shaft (8) is housed on the casing, double crosslinking medium wheel (10) is enclosed within on the splined shaft, locate a block (11) with circlip for shaft on the double crosslinking medium wheel, block inserts the annular groove of duplex external gear, (promptly the ahead running operating handle same annular groove), double crosslinking medium wheel and duplex external gear can be moved axially synchronously; Splined shaft two spindle noses all are equipped with needle bearing, and wherein the needle bearing of a spindle nose is assemblied on the central diaphragm of casing, and the other end is fixed on the annular shaft bearing (86), and this bearing support is fixed on the central diaphragm of casing with bolt and locating stud; The anti-dragged brake device: form free wheel device by attachment tooth wheel shaft (13) and bearing support (23), when automobile came down, former output gear shaft (7) had been converted to power, drove attachment tooth wheel shaft (13) and rotated; All parts all are symmetry assemblings in the arrangements for speed regulation, and the size of bevel gear wheel (54) amplitude of fluctuation depends on the angle of speed change guide groove (45) deflection; Speed change guide groove (45) is one and intersects 180 degree places and have the annulus of two spindle noses and axle center concentric, and two shaft axiss vertically install, and the part that group such as slip ring is associated turns round therein.

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