Speed reducer motor

Abstract

The utility model discloses a speed reducer motor, which comprises a speed reducer shell and is characterized in that one side of the speed reducer shell is fixedly provided with a motor assembly, and the other side of the speed reducer shell is provided with an electric control assembly; a first-stage gear assembly, a second-stage gear assembly and a third-stage gear assembly are sequentially installed in the speed reducer shell, and when the motor assembly works, the first-stage gear assembly is driven to rotate relative to the speed reducer shell. The first-stage gear assembly and the second-stage gear assembly are in meshing transmission, and the second-stage gear assembly and the third-stage gear assembly are in meshing transmission. And the third-stage gear assembly comprises a ratchet wheel, and two groups of pawl assemblies which are annularly distributed are arranged on the periphery of the ratchet wheel. The electric control assembly and the speed reducing mechanism are arranged adjacently, the whole structure is lighter, and the speed reducing effect is good; the third-stage gear assembly has a braking function, and the braking effect is good and reliable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to winch accessory technical field, concretely relates to a speed reducer motor. BACKGROUND

[0002] The winch is a kind of commonly used traction device, and the winch usually includes a speed reduction mechanism and a driving motor, and the speed reduction mechanism is particularly important on the winch.In the prior art patent document CN118458624A, a radial electric clutch electric winch is disclosed, which includes a support, a winding drum mounted in the support, a planetary gear reducer connected to the support and an electric motor, the electric motor is in transmission connection with the planetary gear reducer, and the planetary gear reducer is connected with the winding drum, so that the electric motor drives the winding drum to rotate forward or reverse.The speed reduction mechanism and the electric motor of the existing electric winch are designed separately, and the overall size of the winch is large.Meanwhile, the speed reduction mechanism of the existing winch does not have a brake mechanism, and the braking effect is poor, which is not safe and reliable.Therefore, a speed reducer motor needs to be designed to overcome the above difficulties. SUMMARY

[0003] The utility model discloses in the prior art, the electric control assembly and the speed reduction mechanism of the utility model are adjacent arrangement, and the overall structure is more light and nimble and good speed reduction effect;Third gear assembly all has the brake function, and the braking effect is good and reliable.

[0004] The utility model discloses a kind of speed reducer motors, including speed reducer shell, its characterized in that, one side of speed reducer shell is fixedly installed with motor assembly, and the other side of speed reducer shell is installed with electric control assembly;First gear assembly, second gear assembly and third gear assembly are sequentially installed in the speed reducer shell, and the motor assembly is driven first gear assembly relative rotation when working speed reducer shell;First gear assembly and second gear assembly are engaged transmission, and second gear assembly and third gear assembly are engaged transmission;Third gear assembly includes ratchet wheel, and two groups of annular distribution's pawl assembly are equipped around the ratchet wheel.

[0005] As preferred, the electric control assembly includes an electric control box shell, a plug assembly, a first plug and a relay;The plug assembly is electrically connected with the relay;The motor assembly includes a driving motor, and the driving motor is electrically connected with the relay.

[0006] As preferred, the electric control box shell is provided with the plug assembly fixed thereto, and the electric control box shell is also provided with the first plug detachably connected thereto, and the first plug is arranged towards the second gear assembly;The relay is fixedly installed on the speed reducer shell, and the relay and the speed reducer shell are provided with an installation plate connecting the two.

[0007] The power supply is connected through the plug assembly, which is convenient for supplying power to the driving motor, thereby driving the first-stage gear assembly, the second-stage gear assembly and the third-stage gear assembly to rotate.

[0008] As a preferred, the first-stage gear assembly comprises a first driving wheel and a first driven wheel, the second-stage gear assembly comprises a second driven wheel; the motor assembly comprises a driving motor, the first driven wheel and the rotating shaft of the driving motor are engaged with each other; the first driving wheel and the second driven wheel are engaged with each other, the first driving wheel and the first driven wheel are connected through the spline; the first driving wheel is rotatably connected with the reducer housing through the bearing.

[0009] As a preferred, the second-stage gear assembly further comprises a second driving wheel, a butterfly spring, a locking nut and a stop washer; the second driving wheel is sleeved and installed on the second driven wheel, and the second driven wheel and the second driving wheel rotate synchronously; the butterfly spring is arranged between the second driving wheel and the second driven wheel, the first washer is arranged between the butterfly spring and the second driving wheel, the locking nut is threadedly connected with the second driven wheel, the stop washer is arranged between the locking nut and the second driving wheel, and the second washer is arranged between the stop washer and the second driving wheel.

[0010] As a preferred, the second driven wheel is rotatably connected with the reducer housing through the bearing; the end of the second driven wheel, which faces away from the second driving wheel, is provided with a first oil seal.

[0011] As a preferred, the second-stage gear assembly comprises a second driving wheel, the third-stage gear assembly comprises an output shaft, a third driven wheel and a ratchet wheel; the ratchet wheel is provided with a pawl assembly around the periphery, the third driven wheel is sleeved and installed on the output shaft, and the third driven wheel and the output shaft rotate synchronously; the third driven wheel and the second driving wheel are engaged with each other, and the ratchet wheel is also sleeved and installed on the output shaft, and the ratchet wheel and the output shaft rotate synchronously.

[0012] As a preferred, the output shaft is rotatably connected with the reducer housing through the bearing; the output shaft is sleeved and installed with a baffle which rotates synchronously with the output shaft, the third driven wheel is provided with a plurality of annularly distributed mounting holes, and a pair of cylindrical pins are arranged in the mounting holes; the cylindrical pins are symmetrically distributed in the clamping groove of the baffle; the second oil seal is arranged between the output shaft and the reducer housing, the brake washer is sleeved and installed on the output shaft, and the brake washer abuts against the bearing; the first brake pad is arranged between the brake washer and the ratchet wheel, and the second brake pad is arranged between the ratchet wheel and the third driven wheel.

[0013] As preferred, the pawl assembly comprises a fixed pin shaft, a pawl body and a pawl torsional spring; the fixed pin shaft is fixedly installed on the reducer shell, the pawl body is rotatably connected to the fixed pin shaft, and the pawl torsional spring is arranged between the pawl body and the reducer shell; one pin of the pawl torsional spring is installed on the pawl body, and the other pin of the pawl torsional spring is installed on the reducer shell.

[0014] When the driving motor works, the first driven wheel is driven to rotate, the first driven wheel is installed on the first driving wheel through the spline, and then the first driving wheel is synchronously rotated; when the first driving wheel rotates, the second driven wheel is driven to rotate, the second driving wheel is provided with the second driving wheel, and the butterfly spring is arranged between the second driven wheel and the second driving wheel; in the default state, the second driving wheel and the second driven wheel are synchronously rotated, and only when the output torque of the output shaft is greater than the elastic force of the butterfly spring, the second driving wheel and the second driven wheel are relatively rotated; at this time, the second gear assembly cannot drive the third gear assembly to rotate, so that the driving motor is prevented from excessive heating, and the use is safer and more reliable.

[0015] When the second driving wheel rotates, the third driven wheel is driven to rotate, and the output shaft is driven to rotate when the third driven wheel rotates; the baffle and the cylindrical pin are arranged, so that the third driven wheel and the output shaft are kept synchronous rotation. The brake washer is arranged, and the first brake pad is conveniently installed; the first brake pad and the second brake pad are arranged on the upper side and the lower side of the ratchet respectively, so that the output shaft is kept in a stationary state, so that the output shaft is prevented from rotating in the traction state, and the braking process is safe and reliable. The pawl assembly is arranged, so that the output shaft is kept one-way rotation, and the output shaft is prevented from reverse rotation.

[0016] Compared with the prior art, the utility model has the advantages that: 1. three-stage reduction is carried out through the first gear assembly, the second gear assembly and the third gear assembly, the reduction ratio is conveniently set, and the reduction effect is good; 2. the driving motor is pressurized, the brake device of the third gear assembly is automatically released, the first brake pad and the second brake pad start to work, and the driving motor is prevented from being damaged in the large torque state; 3. the driving motor is arranged adjacent to the first gear assembly, and the first gear assembly, the second gear assembly and the third gear assembly are all installed in the reducer shell, so that the overall volume is small, and the structure is more compact. 4. the butterfly spring is arranged in the second gear assembly, so that the second gear assembly keeps idling when the torque of the output shaft is too large, the driving motor is prevented from being damaged, and the utility model has good buffering effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2 It is another perspective view of the utility model;

[0019] Figure 3 It is a perspective view of the hidden electric control assembly of the utility model;

[0020] Figure 4 It is an internal structure diagram of the speed reducer shell;

[0021] Figure 5 It is a perspective view of the first stage gear assembly;

[0022] Figure 6 It is an exploded view of the first stage gear assembly;

[0023] Figure 7 It is a perspective view of the second stage gear assembly;

[0024] Figure 8 It is an exploded view of the second stage gear assembly;

[0025] Figure 9 It is a perspective view of the third stage gear assembly;

[0026] Figure 10 It is an exploded view of the third stage gear assembly;

[0027] Marked in the figure: 1, speed reducer shell; 2, motor assembly; 21, driving motor; 3, electric control assembly; 31, electric control box shell; 32, plug assembly; 33, first plug; 34, relay; 35, mounting plate; 4, first stage gear assembly; 41, first driving wheel; 42, first driven wheel; 43, spline; 5, second stage gear assembly; 51, second driven wheel; 52, second driving wheel; 53, butterfly spring; 54, locking nut; 55, stop washer; 56, first oil seal; 57, first gasket; 58, second gasket; 6, third stage gear assembly; 61, output shaft; 62, third driven wheel; 63, ratchet wheel; 64, baffle; 65, mounting hole; 66, cylindrical pin; 67, second oil seal; 68, brake washer; 69, first brake pad; 610, second brake pad; 7, pawl assembly; 71, fixed pin shaft; 72, pawl body; 73, pawl torsional spring. DETAILED DESCRIPTION

[0028] The utility model will be further described in connection with the embodiment shown in the drawings:

[0029] As Figures 1 to 10As shown, the embodiment discloses a reducer motor, including reducer housing 1, one side of reducer housing 1 is fixedly installed with motor assembly 2, the other side of reducer housing 1 is installed with electric control assembly 3;The first gear assembly 4, the second gear assembly 5 and the third gear assembly 6 are sequentially installed in the reducer housing 1, the motor assembly 2 drives the first gear assembly 4 to rotate relative to the reducer housing 1 when working;The first gear assembly 4 and the second gear assembly 5 are engaged transmission, the second gear assembly 5 and the third gear assembly 6 are engaged transmission;The third gear assembly 6 includes ratchet wheel 63, the periphery of ratchet wheel 63 is provided with two groups of annular pawl assembly 7.

[0030] The electric control assembly 3 includes electric control box shell 31, plug assembly 32, first plug 33 and relay 34;The plug assembly 32 is electrically connected with the relay 34;The motor assembly 2 includes driving motor 21, the driving motor 21 is electrically connected with the relay 34. The plug assembly 32 is fixed on the electric control box shell 31, the first plug 33 is detachably connected with the electric control box shell 31, the first plug 33 is arranged towards the second gear assembly 5;The relay 34 is fixedly installed on the reducer housing 1, the relay 34 and the reducer housing 1 are provided with mounting plate 35 connecting both.

[0031] The first gear assembly 4 comprises a first driving wheel 41 and a first driven wheel 42, the second gear assembly 5 comprises a second driven wheel 51; the motor assembly 2 comprises a driving motor 21, the driving motor 21 and the first driven wheel 42 are in mesh with each other; the first driving wheel 41 and the second driven wheel 51 are in mesh with each other, the first driving wheel 41 and the first driven wheel 42 are connected through a spline 43; the first driving wheel 41 is rotatably connected with the reducer housing 1 through a bearing. The second gear assembly 5 further comprises a second driving wheel 52, a butterfly spring 53, a locking nut 54 and a stop washer 55; the second driving wheel 52 is sleeved and installed on the second driven wheel 51, and the second driven wheel 51 and the second driving wheel 52 rotate synchronously; the butterfly spring 53 is arranged between the second driving wheel 52 and the second driven wheel 51, the first washer 57 is arranged between the butterfly spring 53 and the second driving wheel 52, the locking nut 54 is threadedly connected with the second driven wheel 51, the stop washer 55 is arranged between the locking nut 54 and the second driving wheel 52, and the second washer 58 is arranged between the stop washer 55 and the second driving wheel 52. The second driven wheel 51 is rotatably connected with the reducer housing 1 through a bearing; the end of the second driven wheel 51, which faces away from the second driving wheel 52, is provided with a first oil seal 56. The second gear assembly 5 comprises the second driving wheel 52, the third gear assembly 6 comprises an output shaft 61, a third driven wheel 62 and a ratchet wheel 63; the ratchet wheel 63 is provided with a ratchet assembly 7 around the periphery, the third driven wheel 62 is sleeved and installed on the output shaft 61, and the third driven wheel 62 and the output shaft 61 rotate synchronously; the third driven wheel 62 and the second driving wheel 52 are in mesh with each other, the ratchet wheel 63 is also sleeved and installed on the output shaft 61, and the ratchet wheel 63 rotates synchronously with the output shaft 61. The output shaft 61 is rotatably connected with the reducer housing 1 through a bearing; the output shaft 61 is sleeved and installed with a baffle 64 which rotates synchronously with the output shaft 61, the third driven wheel 62 is provided with a plurality of annularly distributed mounting holes 65, and a pair of cylindrical pins 66 are arranged in the mounting holes 65; the cylindrical pins 66 are symmetrically distributed in the clamping groove of the baffle 64; a second oil seal 67 is arranged between the output shaft 61 and the reducer housing 1, a brake washer 68 is sleeved and installed on the output shaft 61, and the brake washer 68 abuts against the bearing; a first brake pad 69 is arranged between the brake washer 68 and the ratchet wheel 63, and a second brake pad 610 is arranged between the ratchet wheel 63 and the third driven wheel 62. The ratchet assembly 7 comprises a fixed pin shaft 71, a ratchet body 72 and a ratchet torsion spring 73; the fixed pin shaft 71 is fixedly installed on the reducer housing 1, the fixed pin shaft 71 is rotatably connected with the ratchet body 72, and the ratchet body 72 is rotatably connected with the ratchet torsion spring 73; one pin of the ratchet torsion spring 73 is installed on the ratchet body 72, and the other pin of the ratchet torsion spring 73 is installed on the reducer housing 1.

[0032] The specific operation of the embodiment is as follows: when the driving motor 21 works, the first driven wheel 42 is driven to rotate, the first driven wheel 42 is installed on the first driving wheel 41 through the spline 43, then the first driving wheel 41 will rotate synchronously; when the first driving wheel 41 rotates, the second driven wheel 51 is driven to rotate, the second driving wheel 52 is installed on the second driven wheel 51, the butterfly spring 53 is installed between the second driven wheel 51 and the second driving wheel 52; in the default state, the second driving wheel 52 and the second driven wheel 51 rotate synchronously, only when the output torque of the output shaft 61 is greater than the elastic force of the butterfly spring 53, the second driving wheel 52 and the second driven wheel 51 will rotate relatively; at this time, the second gear assembly 5 cannot drive the third gear assembly 6 to rotate, so that the driving motor 21 is prevented from overheating, and the use is safer and more reliable.

[0033] When the second driving wheel 52 rotates, the third driven wheel 62 is driven to rotate, and when the third driven wheel 62 rotates, the output shaft 61 is driven to rotate; by arranging the baffle 64 and the cylindrical pin 66, the third driven wheel 62 and the output shaft 61 are kept rotating synchronously. By arranging the brake washer 68, the first brake pad 69 is conveniently installed; the first brake pad 69 and the second brake pad 610 are arranged on the upper and lower sides of the ratchet wheel 63 respectively, so that the output shaft 610 is kept in a stationary state, which prevents the output shaft 610 from rotating in the traction state, and the braking process is safe and reliable. By arranging the pawl assembly 7, the output shaft 61 is kept rotating in one direction, and the reverse rotation of the output shaft 61 is avoided.

[0034] The specific embodiments described in the present application are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A reducer motor comprising a reducer housing (1), characterized in that, The motor assembly (2) is fixedly installed on one side of the reducer shell (1), and the electric control assembly (3) is installed on the other side of the reducer shell (1); the first-stage gear assembly (4), the second-stage gear assembly (5) and the third-stage gear assembly (6) are sequentially installed in the reducer shell (1), the motor assembly (2) drives the first-stage gear assembly (4) to rotate relative to the reducer shell (1) when the motor assembly (2) works; the first-stage gear assembly (4) and the second-stage gear assembly (5) are in mesh transmission, and the second-stage gear assembly (5) and the third-stage gear assembly (6) are in mesh transmission; the third-stage gear assembly (6) comprises a ratchet wheel (63), and two groups of annular pawl assemblies (7) are arranged around the ratchet wheel (63).

2. The reducer motor according to claim 1, characterized by, The electric control assembly (3) comprises an electric control box shell (31), a plug assembly (32), a first plug (33) and a relay (34); the plug assembly (32) is electrically connected with the relay (34); the motor assembly (2) comprises a driving motor (21), and the driving motor (21) is electrically connected with the relay (34).

3. The reducer motor of claim 2, wherein, The plug assembly (32) is fixed on the electric control box shell (31), and the first plug (33) is detachably connected to the electric control box shell (31); the first plug (33) is arranged towards the second-stage gear assembly (5); the relay (34) is fixedly installed on the reducer shell (1), and the relay (34) and the reducer shell (1) are provided with an installation plate (35) connecting the relay (34) and the reducer shell (1).

4. The reducer motor of claim 1, wherein, The first-stage gear assembly (4) comprises a first driving wheel (41) and a first driven wheel (42), the second-stage gear assembly (5) comprises a second driven wheel (51), the motor assembly (2) comprises a driving motor (21), the first driven wheel (42) and the rotating shaft of the driving motor (21) are in mesh, the first driving wheel (41) and the second driven wheel (51) are in mesh, the first driving wheel (41) and the first driven wheel (42) are connected through a spline (43), and the first driving wheel (41) is rotatably connected to the reducer shell (1) through a bearing.

5. The reducer motor of claim 2, wherein, The second-stage gear assembly (5) further comprises a second driving wheel (52), a butterfly spring (53), a locking nut (54) and a stop washer (55), the second driving wheel (52) is sleeved and installed on the second driven wheel (51), and the second driving wheel (52) and the second driven wheel (51) rotate synchronously, the butterfly spring (53) is arranged between the second driving wheel (52) and the second driven wheel (51), the first gasket (57) is arranged between the butterfly spring (53) and the second driving wheel (52), the locking nut (54) is threadedly connected to the second driven wheel (51), the stop washer (55) is arranged between the locking nut (54) and the second driving wheel (52), and the second gasket (58) is arranged between the stop washer (55) and the second driving wheel (52).

6. The reducer motor of claim 5, wherein, The second driven wheel (51) is rotatably connected with the reducer housing (1) through a bearing; and the end of the second driven wheel (51) opposite to the second driving wheel (52) is provided with a first oil seal (56).

7. The reducer motor of claim 1, wherein, The second-stage gear assembly (5) comprises a second driving wheel (52), the third-stage gear assembly (6) comprises an output shaft (61), a third driven wheel (62) and a ratchet wheel (63); the ratchet wheel (63) is provided with a pawl assembly (7) around the ratchet wheel (63), the third driven wheel (62) is sleeved on the output shaft (61), and the third driven wheel (62) and the output shaft (61) rotate synchronously; the third driven wheel (62) and the second driving wheel (52) are in engagement, and the ratchet wheel (63) is also sleeved on the output shaft (61), and the ratchet wheel (63) rotates synchronously with the output shaft (61).

8. The reducer motor of claim 7, wherein, The output shaft (61) is rotatably connected with the reducer housing (1) through a bearing; the output shaft (61) is sleeved with a check piece (64) rotating synchronously with the output shaft (61), the third driven wheel (62) is provided with a plurality of annularly distributed mounting holes (65), and the mounting holes (65) are provided with a pair of cylindrical pins (66); the cylindrical pins (66) are symmetrically distributed in the clamping groove of the check piece (64); the output shaft (61) and the reducer housing (1) are provided with a second oil seal (67), the output shaft (61) is sleeved with a brake washer (68), and the brake washer (68) abuts against the bearing; a first brake pad (69) is arranged between the brake washer (68) and the ratchet wheel (63), and a second brake pad (610) is arranged between the ratchet wheel (63) and the third driven wheel (62).

9. The reducer motor of claim 7, wherein, The pawl assembly (7) comprises a fixed pin shaft (71), a pawl body (72) and a pawl torsional spring (73); the fixed pin shaft (71) is fixedly installed on the reducer housing (1), the pawl body (72) is rotatably connected with the fixed pin shaft (71), and the pawl body (72) and the reducer housing (1) are provided with the pawl torsional spring (73); one pin of the pawl torsional spring (73) is installed on the pawl body (72), and the other pin of the pawl torsional spring (73) is installed on the reducer housing (1).

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