CN2567860Y

CN2567860Y - Automatic variable-torque motor

Info

Publication number: CN2567860Y
Application number: CN 01263831
Authority: CN
Inventors: 汪景营
Original assignee: Individual
Current assignee: Dongying auxiliary technology and Trade Co.,Ltd.; S.T.T Energy Saving Technology Co.,Ltd.
Priority date: 2001-09-12
Filing date: 2001-09-12
Publication date: 2003-08-20
Anticipated expiration: 2011-09-12

Abstract

The utility model belongs to the technical fields of mechanical transmission and electromagnetic rotation machinery. At present the motive power motor configuration of the mechanical equipment which has large nonreactivity, inertia and a variable quantity heavy load characteristic, is difficult to solve the troublesome problem that 'a big horse pulls a small carriage'. A novel automatic variable torque motor can automatically adjust the output torque according to the starting state and the running state of the driven mechanical equipment, and thereby, the optimal matching between the utility model and the mechanical equipment and between the utility model and a power supply transformer can be achieved. The novel automatic variable torque motor is composed of an automatic variable torque part and a motor part. The utility model is characterized in that the automatic variable torque part and a motor rotor are concentrically arranged on a main shaft and a motive power output shaft, the motor rotor is connected with a speed changing device and drives the speed changing device through a central wheel in the speed changing device, a clutch indirectly connects the main shaft with the speed changing device, and an escaping controller is connected with the speed changing device, adjusts and controls the torque of the output variable of the speed changing device. The novel automatic variable torque motor has the advantages of unique technical performance, high efficiency effect and energy saving effect, and the utility model is particularly suitable for the running of a driving walking beam type oil pumping unit.

Description

New type auto bending moment motor

The utility model relates to machine driving and electromagnetism rotating machinery, particularly a kind of new type auto bending moment motor.

In current production, the equipment with big inertia and static inertia is a lot, and they are very difficult when starting, and after startup enters normal operation, but only need very little power just can run well.This kind equipment starts and the special circumstances of operation in order to take into account, and can only be to dispose extraordinary type or the bigger motor of power for it at present.For example: the beam pumping unit of petroleum industry widespread usage dispose the motor of 37-75kw usually, and this machine is after startup enters normal operation, the general power that only needs about 15--22kw, the configuration of this " low load with strong power ", it is not high to be directed at efficient, and power consumption is excessive.At present, but sacrificial vessel has the matching used motor of bigger static inert equipment to mainly contain following 4 kinds, (1) yh type high-slip asynchronous motor: have " soft mechanical characteristic ", for obtaining bigger detent torque, when manufacturing and designing, usually take to increase rotor bar resistance, increase measures such as rotor and stator air gap, its detent torque increased, power factor has but reduced, the electricity during unloaded and operation decreases obviously increase.(2) yer wound-rotor asynchronous motor: startup and other performance are all better, but its complex structure, price is more expensive, and maintenance is big, therefore can use the occasion of common motor, does not generally adopt this type of motor.(3) frequency-conversion and speed-regulation motor: adopt converter technique, the startability of motor is improved, but its dominant control anti-overload ability is limited, and costs an arm and a leg.(4) rare earth permanent magnet autosynchronous motor: power savings is better, but when starting under the heavy duty state, and often because of huge the increasing of moment starting current, supply voltage rapid drawdown and produce " pull out torque ", " breaking away from synchronously " is directed at and starts difficulty.Above-mentioned 4 kinds of motor are used for driving when having bigger static inert equipment, and are more much better than the motor of other type.And relate to prior art products---the yxj type cycloidal-pin wheel deceleration asynchronous motor and the ycj type gear reduction asynchronous motor of the utility model category, all be to form by the mechanical reducer of fixed drive ratio and motor combination, this class motor mainly is applicable to, need low, decide rotating speed, greatly on the equipment of torque.But do not adjust the property of gearratio automatically because these two kinds of mechanical type deceleration asynchronous motors do not possess to be in operation, the former capital incompatibility is similar to this equipment with big inertia and static inertia of beam pumping unit and uses.

The purpose of this utility model is at the above-mentioned the deficiencies in the prior art part of enumerating, a kind of new type auto bending moment motor is provided, its major technology performance and characteristics are: this new type auto bending moment motor is when driving the starting of big inertia and static inert equipment, can automatically be disposed the specified starting torque of motor several times with it, do not have the ground of impact and provide power for the equipment that is driven, after equipment enters normal operating condition, can adjust the revolution of output automatically, make it the normal operation of the equipment that is suitable for.If new type auto bending moment motor (refers to: in the time of the variation in equipment and technology regulation allowed band) in the bigger load variations of the generation in service that drives inertia and static inert equipment, the utility model automatically increases the output torque, behind the resistance that overcomes load, can automatically recover again to enter normal running status once more with driving arrangement.

Accompanying drawing 1 is the principle schematic of new type auto bending moment motor; Accompanying drawing 2 is new type auto bending moment motor gear box device principle schematic; Accompanying drawing 3 is new type auto bending moment motor clutch structure, principle schematic; Accompanying drawing 4 is new type auto bending moment motor escapement controller architecture, principle schematic; Accompanying drawing 5 is in the new type auto bending moment motor gear box device, the connection of inner disc, outer dish, assembling schematic diagram; Accompanying drawing 6 is embodiment overall structure, assembling schematic diagrames of new type auto bending moment motor.

Accompanying drawing is explained: 1. new type auto bending moment motor, 2. automatic torque-changing part, 3. motor part, 4. clutch, 5. speed changer, 6. escapement controller, 7. left end cap 8. connects screw, 9. conduction wheel inner disc bearing, 10. internal gear coils bearing outside the 11. conduction wheels, 12. outer dishes, 13. suspension ring, 14. brake bands, the 15. outer side bearings of facing left, 16. coil the right side bearing outward, 17. reversing rollers, 18. stators, 19. drive rod, 20. main cases, 21. reversing rollers coil bearing outward, 22. sealing ring, 23. conduction wheels, 24. inner discs, 25. hold-down screw, 26. driving disc spacing pressings, 27. friction plates, 28. reversing roller inner disc bearing, 29. centre wheels, 30. fan type brake shoes, 31. the lid screw, 32. axle keys, 33. power output shafts, 34. the left end cap bearing, 35. lid bearings, 36. main shafts, 37. the location lid, 38. dish keys, 39. wheel bearings, 40. first packing ring, 41. installing holes, 42. guiding drive plates, 43. support, 44. pairs of bar axles, 45. unidirectional bars, 46. return spring, 47. control levers, 48. bar axles, 49. wheel cap, 50. inner disc bearings, 51. take turns key, 52. pole socket, 53. release levers, 54. protective covers, 55. right end cap, 56. rotors, 57. fans, 58. the right end cap bearing, 59. tighten up screw, 60. the 4th packing rings, 61. the 3rd packing ring, 62. second packing rings, 63. brake discs, 64. limited post, 65 left end shaft, 66. right-hand member axles, 67. the valve snail nail, 68. support platforms, 69. weld bonds, 70. screw, 71. recessed teeth, 72 locks are put bar.

The purpose of this utility model is achieved by the following technical solution, and sees shown in the accompanying drawing 1.New type auto bending moment motor (1) comprises automatic torque-changing partly (2) and motor part (3), and its automatic torque-changing partly (2) mainly is made up of speed changer (5), clutch (4), escapement controller (6) etc.; Motor partly (3) mainly is made up of stator (18) and rotor (56).Automatic torque-changing part (2) and motor partly (3) are installed on main shaft (36) and the power output shaft (33) with one heart.Main shaft (36) and power output shaft (33) are installed in the left end cap bearing (34) and the right end cap bearing (58) on the right end cap (55) on the left end cap (7) at main case (20) two ends.

Automatic torque-changing part (2) and the motor partly common component of (3) are made up of main case (20), power output shaft (33), main shaft (36), left end cap (7), right end cap (55), protective cover (54), location lid (37), left end cap bearing (34), lid bearing (35), right end cap bearing (58), fan (57), connection screw (8), lid screw (31), support (43) etc.In main case (20) and arranged on left and right sides, by connecting screw (8) left end cap (7), right end cap (55) and protective cover (54) are installed, fastened as one, tighten up location lid (37) with lid screw (31), thus respectively with one heart left end cap bearing (34), right end cap bearing (58), fastening, be positioned in the bearing pedestal of left end cap (7) and right end cap (55).Power output shaft (33) penetrates, passes from left end cap bearing (34) right side, and the axle key of its left end (32) is used for connecting load.Main shaft (36) left end is packed into and power output shaft (33) is that main shaft (36) right-hand member penetrates, passes right end cap bearing (58) in the lid bearing (35) of one right side wheel cap (49).On right end cap (55) right side cooling fan (57) is housed, and fan (57) is located, is fixed on the right part of main shaft (36) by tightening up screw (59).With main case (20) be on the support (43) of one, be provided with installing hole (41), for install, fixing new type auto bending moment motor (1), see shown in the accompanying drawing 6.

The speed changer (5) of automatic torque-changing part (2) is mainly by power output shaft (33), main shaft (36), inner disc (24), outer dish (12), centre wheel (29), reversing roller (17), conduction wheel (23), internal gear (10), wheel cap (49), sealing ring (22), left end cap bearing (34), lid bearing (35), right end cap bearing (58), wheel bearing (39), inner disc bearing (50), the side bearing (15) of facing left outward, outer dish right side bearing (16), reversing roller inner disc bearing (28), reversing roller coils bearing (21) outward, conduction wheel inner disc bearing (9), the outer dish of conduction wheel bearing (11), inner disc (24), outer dish (12), right end cap bearing (58), valve snail nail (67), support platform (68), Deng composition, see accompanying drawing 2,5, shown in 6.Centre wheel (29) concentric locking collar is contained in main shaft (36) and upward and by wheel key (51) locatees, fixes.Outer dish (12) and inner disc (24) are positioned at centre wheel (29) and arranged on left and right sides, be welded with three support platforms (68) the first-class radian in left circumference plane of outer dish (12), weld bond (69) is seen in its welding position, penetrate from inner disc (24) left side with three valve snail nails (67), be screwed in the screw (70) of three support platforms (68) on the outer dish (12), inner disc (24) and outer dish (12) are fastened as one, and by inner disc bearing (50), outward face left side bearing (15), outward coil right side bearing (16) suit, be supported on the main shaft (36).Reversing roller (17) and conduction wheel (23) are respectively charged into reversing roller inner disc bearing (28), reversing roller coils outward in bearing (21), conduction wheel inner disc bearing (9), the conduction wheel outer dish bearing (11), internal gear (10) by wheel bearing (39), wheel cap (49) by lid bearing (35) all with one heart suit, be supported on the main shaft (36), fixedly gong nail (25) fastens as one wheel cap (49) and internal gear (10).The engagement of centre wheel (29) and reversing roller (17), reversing roller (17) simultaneously and conduction wheel (23) engagement, conduction wheel (23) is meshed with internal gear (10) simultaneously, the gearratio of speed changer (5) depends on the number of teeth ratio of centre wheel (29) and internal gear (10).Sealing ring (22) is enclosed between the right part and outer dish of internal gear (10), throws away to prevent the lubricating grease in the speed changer (5).

The automatic torque-changing partly clutch (4) of (2) is that brake shoe is centrifugal, sees shown in the accompanying drawing 3,6.Mainly form for the guiding drive plate (42) of one etc. by driving disc spacing pressing (26), fan-shaped brake shoe (30), friction plate (27) and with internal gear (10).Driving disc spacing pressing (26) concentric locking collar is contained on the main shaft (36), and by dish key (38) location, fixing.Between guiding drive plate (42) and driving disc spacing pressing (26) fan-shaped brake shoe (30) is housed, fan-shaped brake shoe (30) external arc side is stained with friction plate (27).

The automatic torque-changing partly escapement controller (6) of (2) is seen accompanying drawing 4, mainly is made up of brake disc (63), drive rod (19), brake band (14), pole socket (52), control lever (47), bar axle (48), release lever (53), two bar axle (44), unidirectional bar (45), return spring (46), limited post (64), left end shaft (65), right-hand member axle (66) etc.On the pole socket (52) that is connected as a single entity with main case (20), bar axle (48) and two bar axle (44) are housed, control lever (47) and release lever (53) are set on bar axle (48) and the two bar axle (44), and angles are spent in the forward and backward swing 120 of energy.Right part at release lever (53) is equipped with limited post (64), the unidirectional bar (45) of the forward and backward swing of energy is housed at an upper portion thereof, between release lever (53) and unidirectional bar (45), a return spring (46) is housed, making release lever (53) and unidirectional bar (45) is the center with two bar axles (44), remains softened state.On brake disc (63) the right side circumferential plane of outer dish (12) one, the drive rod (19) of 8 right-hand member band threads is housed with waiting radian.Brake band (14) wraps on the brake disc (63), and brake band (14) two ends difference hanging sleeve is on control lever (47) left end shaft (65) and right-hand member axle (66).

On main shaft (36), suit 4 packing rings, is used for limiting the end play that is sleeved between the last relevant parts of main shaft (36).First packing ring (40) is contained between wheel bearing (38) and the inner disc bearing (50), second packing ring (62) is contained between outer dish right side bearing (16) and the motor rotor (56), the 3rd packing ring (61) is contained between motor rotor (56) and the right end cap bearing (58), and the 4th packing ring (60) is contained between right end cap bearing (58) and the fan (57).

Below, embodiment operation principle of the present utility model is described in detail in conjunction with the accompanying drawings in detail: see also accompanying drawing 2,3,4,6.When new type auto bending moment motor (1) drives the device start with big inertia and static inertia, if the motor partly rotor (56) of (3) is rotated counterclockwise, centre wheel (29) in the speed changer (5) of automatic torque-changing part this moment (2) is also synchronous, rotation in the same way, reversing roller (17) then turns clockwise, conduction wheel (23) is rotated counterclockwise, because very big being used to of equipment, inertial resistance acts on the power output shaft (33), resistance torque passes to internal gear (10) by the wheel cap (49) with power output shaft (33) left side one, internal gear (10) is remained static temporarily, so just force conduction wheel (23) with its engagement, reversing roller (17) is in centre wheel (29), both under the driving of motor rotor (56) in rotation, drive inner disc (24), the integral body that outer dish (12) is formed, by inner disc bearing (50), the side bearing (15) of facing left outward, outer dish right side bearing (16) is supported on the main shaft (36) and turns clockwise, and with outer dish (12) be 8 drive rods on brake disc (63) the right flank circumferential plane of one, when turning clockwise, at first promote automatic torque-changing partly the unidirectional bar (45) in the escapement controller (6) of (2) rotate counterclockwise, its bottom is under the barrier effect of limited post (64), driving release lever (53) is rotated counterclockwise, the lock that makes the recessed tooth (71) of release lever (53) lower end discharge control lever (47) right part is put bar (72), under the effect of brake band (14) elastic force, control lever (47) turning anticlockwise, its upper end is driven bar (19) promotion and is rotated counterclockwise immediately, thereby drive brake band (14) and hold brake disc (63) tightly, and brake disc (63) is to turn clockwise more, brake band (14) to brake disc (63) embrace tight more, because the gap between brake band (14) and the brake disc (63) is very little, so control lever (47) need only be rotated counterclockwise little angle brake disc (63) is stopped operating, with the outer dish (12) of brake disc (63) one, inner disc (24) is braked stall very soon.But because motor rotor (56) still is being rotated counterclockwise, so centre wheel (29) is synchronous, rotation in the same way, reversing roller (17) turns clockwise, conduction wheel (23) is rotated counterclockwise, thereby force the power output shaft (33) of internal gear (10) and one counterclockwise, the slow-speed of revolution, the running of big torque ground beginning starting device, when load after starting, rotating speed improves rapidly, power output shaft (33) and the internal gear (10) that is coupled as one thereof improve revolution rapidly simultaneously with load, with internal gear (10) be that fan-shaped brake shoe (30) in the guiding drive plate (42) of one is under action of centrifugal force, move outward press to motor rotor (56) synchronous, homodromal driving disc spacing pressing (26), and make internal gear (10) rotating speed begin to increase rapidly, the centrifugal force of fan-shaped brake shoe (30) also increases thereupon, friction plate (27) on the fan-shaped brake shoe (30) and huge the increasing of frictional force between the driving disc spacing pressing (26), thereby drive, force internal gear (10) to be synchronized with the rotating speed of motor main shaft (36), at this moment the inner drive state of the speed changer (5) of automatic torque-changing part (2) begins to change, inner disc (24), coiling the integral body that (12) reach and the outer brake disc (63) that coils (12) one is formed outward transfers to rotate to counter clockwise direction, and with outer dish (12) be 8 drive rods (19) on the circumferential plane of brake disc (63) right flank of one, when being rotated counterclockwise, promote the control lever (47) in the escapement controller (6) again at first in regular turn, unidirectional bar (45) clockwise rotates, to making brake band (14) discharge brake disc (63), under the effect of return spring (46), unidirectional bar (45) and release lever (53) are though strut maximum angle, but because of unidirectional bar (45) clockwise rotates, limited post (64) is left in its bottom, release lever (53) is under the effect of return spring, also clockwise rotate, when control lever (47) when turning clockwise, the lock of its right part is put bar (72), slip in the recessed tooth (71) of release lever (53) lower end, control lever (47) is no longer rotated, brake band (14) friction brake disk (63) and make whole automatic torque-changing partly (2) and motor rotor (56) be in the same way no longer like this, synchronously be rotated counterclockwise, thereby driving arrangement enters normal operation very soon by starting state.

Below for example, new type auto bending moment motor (1) is described in detail in detail is driving the in service of inertia and static inert equipment, big load variations takes place (to be referred to: in the time of the load variations in equipment and technology regulation allowed band), new type auto bending moment motor (1) is how to increase the output torque automatically, and behind the resistance that overcomes load, be again how driving arrangement returns to normal operating condition once more.For example new type auto bending moment motor (1) is applied on the girder-like oil pump, in the winter time, when in a single day " tying cured " situation takes place in oil well, the sucker rod resistance of oil pumper increases, force power output shaft (33) rotating speed of new type auto bending moment motor (1) to descend, the centrifugal force of fan-shaped brake shoe (30) reduces thereupon in the speed changer (5), and produce slip gradually with driving disc spacing pressing (26), make inner disc (24), outer dish (12) and turn clockwise with integral body that the brake disc (63) of outer dish one is formed, and with outer dish (12) be 8 drive rods (19) on brake disc (12) the right flank circumferential plane of one, when turning clockwise, repeat above-mentioned starting process again, at first promote automatic torque-changing partly the unidirectional bar (45) in the escapement controller (6) of (2) rotate counterclockwise, its bottom is under the barrier effect of limited post (64), driving release lever (53) is rotated counterclockwise, the lock that makes the recessed tooth (71) of release lever (53) lower end discharge control lever (47) right part is put bar (72), under the effect of brake band (14) elastic force, control lever (47) turning anticlockwise, its upper end is driven bar (19) promotion and is rotated counterclockwise immediately, thereby drive brake band (14) and hold brake disc (63) tightly, make outer dish (12) with brake disc (63) one, inner disc (24) integral body stops operating.But, because motor rotor (56) still is being rotated counterclockwise, so centre wheel (29) synchronously, in the same way the rotation, reversing roller (17) turns clockwise, conduction wheel (23) is rotated counterclockwise, force internal gear (10) again and the power output shaft (33) that is coupled as one counterclockwise, the slow-speed of revolution, big torque ground drive the oil pumper running.After overcoming the oil well resistance, the revolution of the power output shaft (33) of new type auto bending moment motor (1) improves rapidly, with internal gear (10) be that fan-shaped brake shoe (30) in the guiding drive plate (42) of one is under action of centrifugal force, move outward press to motor rotor (56) synchronous, homodromal driving disc spacing pressing (26), and make internal gear (10) rotating speed begin to increase rapidly, the centrifugal force of fan-shaped brake shoe (30) also increases thereupon, friction plate (27) on the fan-shaped brake shoe (30) and huge the increasing of frictional force between the driving disc spacing pressing (26), drive again, force internal gear (10) to be synchronized with the rotating speed of motor main shaft (36), thereby drive the resistance that beam pumping unit has overcome oil well, enter normal operating condition again.New type auto bending moment motor (1) auto-control again and again that comes to this provides safe and reliable operation power for being similar to the equipment that this class of beam pumping unit is used to, inertia is bigger.

The utlity model has following advantage:, in the same way the rotation coaxial of the power output shaft (33) of this new type auto bending moment motor (1) with motor main shaft (36), thereby to have realized collecting mechanical automatic torque-changing and motor be a compactness, refining integral body, because it has unique automatic speed regulation, bending moment function, so can make equipment with big inertia and static inertia, and between the new type auto bending moment motor (1), between new type auto bending moment motor (1) and its power supply unit, all realized best coupling.For example: the beam pumping unit of a 50kva supply transformer of former configuration and a 37kw motor, if use the utility model instead, need only one the new type auto bending moment motor (1) of 30kva supply transformer and 22--28kw, " 2: 1 gearratio types ", just can make this beam pumping unit safety, start reliably and move.Compare with motor, the transformer of the former configuration of oil pumper, the capacity of power of electric motor and transformer can reduce more than 30% simultaneously, and its energy conservation and consumption reduction effects is very remarkable.

Claims

1, a kind of new type auto bending moment motor, partly form by automatic torque-changing part and motor, automatic torque-changing partly mainly is made up of speed changer, clutch, escapement controller etc., motor partly mainly is made up of stator and rotor, it is characterized in that automatic torque-changing partly and the motor part be installed in one heart on main shaft and the power output shaft, main shaft and power output shaft are installed in the left end cap bearing and the right end cap bearing on the right end cap on the left end cap at main case two ends; Automatic torque-changing part and motor common component partly are by main case, power output shaft, main shaft, left end cap, right end cap, protective cover, the location lid, the left end cap bearing, the lid bearing, the right end cap bearing, fan, connect screw, the lid screw, compositions such as support, it is characterized in that a main case left side, right both sides are by connecting the key screw left end cap, right end cap and protective cover are installed, fasten as one, tighten up the location lid with the lid screw, thereby respectively with one heart the left end cap bearing, the right end cap bearing, fastening, be positioned in the bearing pedestal of left end cap and right end cap, power output shaft penetrates from left end cap bearing right side, pass the axle key of its left end, use for connecting load, the main shaft left end is packed into and power output shaft is in the lid bearing of one right side wheel cap, the main shaft right-hand member penetrates, pass the right end cap bearing, on the right end cap right side cooling fan is housed, and by tightening up key screw fan location, be fixed on the right part of main shaft, being to be provided with installing hole on the support of one, for installation with main case, fixing new type auto bending moment motor; Automatic torque-changing speed changer partly is mainly by power output shaft, main shaft, inner disc, outer dish, centre wheel, reversing roller, the conduction wheel, internal gear, wheel cap, sealing ring, the left end cap bearing, the lid bearing, the right end cap bearing, wheel bearing, the inner disc bearing, the side bearing of facing left outward, outer dish right side bearing, reversing roller inner disc bearing, reversing roller coils bearing outward, conduction wheel inner disc bearing, the outer dish of conduction wheel bearing, inner disc, outer dish, the right end cap bearing, the valve snail nail, support platform, Deng composition, it is characterized in that the centre wheel concentric locking collar is contained on the main shaft and by wheel key location, fixing, outer dish and inner disc are positioned at a centre wheel left side, right both sides, be welded with three support platforms the first-class radian in left circumference plane of outer dish, penetrate from the inner disc left side with three valve snail nails, be screwed in the screw of three support platforms on the outer dish, inner disc and outer dish are fastened as one, and by the inner disc bearing, the side bearing of facing left outward, outer dish right-hand axis bearing sleeve dress, be supported on the main shaft, ring set is in the internal gear right part, be clipped between outer dish and the internal gear right part, in case the lubricating grease in the speed changer throws away; Reversing roller and conduction wheel are respectively charged into reversing roller inner disc bearing, reversing roller coils outward in bearing, conduction wheel inner disc bearing, the outer dish of the conduction wheel bearing, internal gear by wheel bearing, wheel cap by the equal suit of lid bearing, be supported on the main shaft, fixedly the gong nail fastens as one wheel cap and internal gear, centre wheel and reversing roller engagement, reversing roller meshes with the conduction wheel simultaneously, conduction wheel is meshed with internal gear simultaneously, and the gearratio of speed changer depends on the number of teeth ratio of centre wheel and internal gear; Automatic torque-changing clutch partly is that brake shoe is centrifugal, mainly by driving disc spacing pressing, fan-shaped brake shoe, friction plate and with internal gear be that the guiding drive plate etc. of one is formed, it is characterized in that the driving disc spacing pressing concentric locking collar is contained on the main shaft, and by dish key location, fixing, between guiding drive plate and driving disc spacing pressing fan-shaped brake shoe is housed, fan-shaped brake shoe external arc side is stained with friction plate; Automatic torque-changing escapement controller partly, mainly by brake disc, drive rod, brake band, pole socket, control lever, the bar axle, release lever, two bar axles, unidirectional bar, return spring, limited post, left end shaft, compositions such as right-hand member axle, it is characterized in that on the pole socket that is connected as a single entity with main case, bar axle and two bar axle are housed, control lever and release lever are set on bar axle and the two bar axle, and before the energy, back swing 120 degree angles, right part at release lever is equipped with limited post, before at an upper portion thereof energy being housed, the unidirectional bar of back swing, a return spring is housed between release lever and unidirectional bar, making release lever and unidirectional bar is the center with two bar axles, remain softened state, on the brake disc right side circumferential plane of outer dish one, Deng radian the drive rod of 8 right-hand member band threads is housed, brake band wraps on the brake disc, and the two ends difference hanging sleeve of brake band is on control lever left end shaft and right-hand member axle.

2, new type auto bending moment motor according to claim 1, it is characterized in that between the centre wheel and internal gear in the automatic torque-changing speed changer partly, a reversing roller and a conduction wheel are housed, centre wheel and reversing roller engagement, reversing roller meshes with the conduction wheel simultaneously, and the conduction wheel is meshed with internal gear simultaneously.

3, new type auto bending moment motor according to claim 1, it is characterized in that the escapement controller catch, vertical by inner disc, the integral body formed of the brake disc of dish and right side one thereof outward.