CN218408447U

CN218408447U - Worm gear reducer

Info

Publication number: CN218408447U
Application number: CN202222607074.4U
Authority: CN
Inventors: 谢王升
Original assignee: Hangzhou Tianju Machinery Co ltd
Current assignee: Hangzhou Tianju Intelligent Machinery Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-31
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a worm gear reduction gear relates to reduction gear technical field, including shell, motor frame and connecting plate, the inside of shell is provided with the worm, the axle of putting into power has all been welded at both ends about the worm, the right side of bearing is provided with the oil blanket, the right side surface integration of shell installs the lid of putting into power, the motor frame is located the right side of shell, the inside slot of having seted up of right-hand member of the axle of putting into power, the connecting plate welds in the left end of motor frame. The utility model discloses the oil blanket is installed in the income power axle outside, the right side of bearing, the oil blanket is arranged in separating the transmission part in need lubricated part with the part of exerting oneself, be unlikely to let the lubricating oil seepage come out, the oil blanket is along with the same rotation of income power axle, the surface that leads to the oil blanket can not laminate completely with income power lid inner wall, consequently the oil blanket remains the gap usually between oil blanket and the income power lid, the gap between oil blanket and the income power lid can be filled in the setting of annular cover and second annular groove to improve the device's leakproofness.

Description

Worm gear reducer

Technical Field

The utility model relates to a reduction gear technical field specifically is worm gear reduction gear.

Background

A worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the number of revolutions of a motor (motor) to a desired number of revolutions and obtain a large torque. In the mechanism for transmitting power and movement, the application range of the speed reducer is quite wide, the speed reducer can be seen in the transmission system of various machines, and the speed reducer can be seen from ships, automobiles and locomotives of vehicles, heavy equipment for buildings, processing equipment and automatic production equipment for the mechanical industry, common household appliances and clocks in daily life, and the like. The application of the speed reducer can be seen from the transmission work of large power, to the transmission of small load and accurate angle, and in industrial application, the speed reducer has the functions of reducing speed and increasing torque. Therefore, the device is widely applied to speed and torque conversion equipment.

Oil blanket is one of essential part among the current worm gear speed reducer, the oil blanket is arranged in separating the lubricated part of needs among the drive disk assembly and the part of exerting oneself, therefore the oil blanket cup joints in the income power off-axial side usually, because it can be rotatory to go into the power axle, consequently, the surface of oil blanket can not laminate with income power lid inner wall completely, lead to oil blanket and income to reserve the gap usually between the power lid, the leakproofness of worm gear speed reducer has been reduced, secondly output shaft and the income power axle welding of motor in the general worm gear speed reducer, when the motor, when worm wheel or worm arbitrary party appear damaging, whole device will be changed together, it is too extravagant, for this, an urgent need a worm gear speed reducer.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a worm gear speed reducer ware, one of the parts that the oil blanket is indispensable in order to solve current worm gear speed reducer ware, the oil blanket is arranged in separating the lubricated part of needs and the part of exerting oneself among the drive disk assembly, therefore the oil blanket cup joints the axle outside of exerting oneself usually, because the axle of exerting oneself is rotatable, consequently, the surface of oil blanket can not laminate with the lid inner wall of exerting oneself completely, lead to the oil blanket and exert oneself and remain the gap usually between the lid, the leakproofness of worm gear speed reducer ware has been reduced, secondly the output shaft and the axle welding of exerting oneself of motor in the general worm gear speed reducer ware, when the motor, worm wheel or worm arbitrary party appear damaging, whole device will be changed together, too extravagant problem.

In order to achieve the above object, the utility model provides a following technical scheme: worm gear reducer, including shell, motor frame and connecting plate, the inside of shell is provided with the worm, the axle of exerting oneself has all been welded at both ends about the worm, and has cup jointed the bearing in the outside of the axle of exerting oneself, the right side of bearing is provided with the oil blanket, and the surface laminating of oil blanket has the annular cover, the lid of exerting oneself is installed in the integration of the right side surface of shell, first ring channel and second ring channel have been seted up respectively to the inner wall of the lid of exerting oneself.

The motor frame is located on the right side of the shell, a motor is welded inside the motor frame, an outlet end of the motor is connected with an output shaft, limiting strips are distributed on the outer surface of the left end of the output shaft, a slot is formed inside the right end of the input shaft, and a limiting groove is formed in the inner wall of the slot.

The connecting plate welds in the left end of motor frame, and the round hole has been seted up to the inside of connecting plate, the inside of round hole is run through there is the screw thread post, and the terminal outside of screw thread post has connect the nut soon.

Preferably, a worm wheel is connected to the upper portion of the worm in a meshed mode, and a transmission shaft penetrates through the middle of the worm wheel.

Preferably, the outer surface of the bearing is attached to the inner surface of the first annular groove, and the transverse central axis of the bearing and the transverse central axis of the oil seal are located on the same horizontal line.

Preferably, the outer surface of the annular sleeve is smooth, and the central axis of the annular sleeve coincides with the central axis of the oil seal.

Preferably, the motor forms a rotating structure with the input shaft through the output shaft, and the outer surface of the left end of the output shaft is attached to the inner surface of the slot.

Preferably, the number of the limiting grooves is equal to that of the limiting strips, and the inner surfaces of the limiting grooves are attached to the outer surfaces of the limiting strips.

Preferably, the connecting plate is in threaded connection with the shell through a threaded column, and the threaded column and the shell are welded.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the oil blanket is installed in the income power axle outside, the right side of bearing, the oil blanket is arranged in separating the transmission part in need lubricated part with the part of exerting oneself, be unlikely to let the lubricating oil seepage come out, the oil blanket is along with the same rotation of income power axle, the surface that leads to the oil blanket can not laminate completely with income power lid inner wall, consequently the oil blanket remains the gap usually between oil blanket and the income power lid, the gap between oil blanket and the income power lid can be filled in the setting of annular cover and second annular groove to improve the device's leakproofness.

2. The utility model discloses be provided with output shaft, spacing, slot and spacing groove, aim at the left end of output shaft and go into the inside slot of power axle right-hand member and insert, need align the spacing and the spacing groove of output shaft surface when inserting, through the cooperation of spacing and spacing groove, strengthen the joint strength of power axle and output shaft, reduce the probability of skidding between power axle and the output shaft.

3. The utility model discloses be provided with screw thread post, nut and connecting plate, the connecting plate passes through screw thread post and shell threaded connection, and this kind of connected mode makes the motor can dismantle, when the motor breaks down or damages, with nut anticlockwise rotation for the connecting plate breaks away from with the screw thread post, can change new motor.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the connection structure of the input shaft and the output shaft of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 5 is an enlarged schematic structural diagram of the position B in fig. 1 of the present invention.

In the figure: 1. a housing; 2. a worm; 3. a worm gear; 4. a drive shaft; 5. an input shaft; 6. a bearing; 7. oil sealing; 8. an annular sleeve; 9. a force input cover; 10. a first annular groove; 11. a second annular groove; 12. a slot; 13. a limiting groove; 14. a limiting strip; 15. an output shaft; 16. a motor; 17. a motor frame; 18. a connecting plate; 19. a circular hole; 20. a threaded post; 21. and (4) a nut.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Next, an embodiment of the present invention will be described with reference to the overall structure thereof.

Referring to fig. 1-5, the worm gear reducer comprises a housing 1, a motor frame 17 and a connecting plate 18, wherein a worm 2 is arranged inside the housing 1, a worm wheel 3 is engaged and connected above the worm 2, a transmission shaft 4 penetrates through the middle part of the worm wheel 3, the worm 2 rotates to drive the worm wheel 3 to rotate, the rotating speed of the worm 2 is reduced after being transmitted to the worm wheel 3, a thrust shaft 5 is welded at each of the left end and the right end of the worm 2, a bearing 6 is sleeved outside the thrust shaft 5, an oil seal 7 is arranged on the right side of the bearing 6, an annular sleeve 8 is attached to the outer surface of the oil seal 7, the outer surface of the bearing 6 is attached to the inner surface of a first annular groove 10, the transverse central axis of the bearing 6 and the transverse central axis of the oil seal 7 are located on the same horizontal line, the first annular groove 10 is used for fixing the bearing 6, and the bearing 6 is used for protecting the thrust shaft 5, the input shaft 5 penetrates through the shell 1 to stably rotate, the oil seal 7 is used for separating parts needing to be lubricated from output parts in the transmission part, and lubricating oil is prevented from leaking out, the input cover 9 is integrally installed on the right side surface of the shell 1, a first annular groove 10 and a second annular groove 11 are formed in the inner wall of the input cover 9 respectively, the outer surface of the annular sleeve 8 is smooth, the central axis of the annular sleeve 8 is overlapped with the central axis of the oil seal 7, and the oil seal 7 needs to rotate along with the input shaft 5, so that the outer surface of the oil seal 7 cannot be completely attached to the inner wall of the input cover 9, a gap is usually reserved between the oil seal 7 and the input cover 9, and the arrangement of the annular sleeve 8 and the second annular groove 11 can fill the gap between the oil seal 7 and the input cover 9, and the sealing performance of the device is improved;

the motor frame 17 is located on the right side of the shell 1, a motor 16 is welded inside the motor frame 17, an outlet end of the motor 16 is connected with an output shaft 15, a limiting strip 14 is distributed on the outer surface of the left end of the output shaft 15, a slot 12 is formed in the right end of the input shaft 5, a limiting groove 13 is formed in the inner wall of the slot 12, the motor 16 and the input shaft 5 form a rotating structure through the output shaft 15, the outer surface of the left end of the output shaft 15 is attached to the inner surface of the slot 12, the motor 16 is started, the motor 16 drives the input shaft 5 to rotate through the output shaft 15, so that the rotation of the worm 2 is controlled, the number of the limiting grooves 13 is equal to the number of the limiting strips 14, the inner surface of the limiting grooves 13 is attached to the outer surface of the limiting strip 14, the left end of the output shaft 15 is aligned to the slot 12 in the right end of the input shaft 5 to be inserted, the limiting strips 14 and the limiting grooves 13 need to be aligned when being inserted, and the connection strength between the input shaft 5 and the output shaft 15 is enhanced through the matching of the limiting strips 14 and the limiting grooves 13, so that slipping is avoided;

connecting plate 18 welds the left end in motor frame 17, and round hole 19 has been seted up to the inside of connecting plate 18, the inside of round hole 19 is run through threaded column 20, and threaded column 20's the terminal outside has connect the nut 21 soon, connecting plate 18 passes through threaded column 20 and shell 1 threaded connection, and threaded column 20 sets up to the welding with shell 1, motor 16 can dismantle in the device, when motor 16 breaks down or damages, can be with nut 21 anticlockwise rotation, take off nut 21, outwards stimulate connecting plate 18 afterwards, until connecting plate 18 breaks away from with threaded column 20 can more renew motor 16.

The working principle is as follows: when the sealing device is used, firstly, the motor 16 is installed, the left end of the output shaft 15 is aligned to the slot 12 inside the right end of the input shaft 5 and inserted, the limiting strip 14 and the limiting groove 13 need to be aligned when the sealing device is inserted, the connection strength between the input shaft 5 and the output shaft 15 is enhanced through the matching of the limiting strip 14 and the limiting groove 13, when the output shaft 15 is fixed, the connecting plate 18 can pass through the threaded column 20, the nut 21 is screwed on the tail end of the threaded column 20 clockwise, the motor 16 can be stably assembled on the right side of the shell 1, at the moment, the input shaft 5 and the output shaft 15 are also fixed, the motor 16 is started, the motor 16 drives the input shaft 5 to rotate through the output shaft 15, as the input shaft 5 is welded with the worm 2, the worm 2 rotates along with the input shaft, the worm wheel 3 is connected through the meshing above the worm 2, the worm wheel 3 rotates, the rotating speed of the worm 2 is transmitted to the worm wheel 3 and then slowed down, the first annular groove 10 is used for fixing the bearing 6, the bearing 6 is used for protecting the input shaft 5, so that the input shaft 5 passes through the shell 1 and stably rotates, the oil seal 7 is used for separating a lubrication component which is not possible to be reserved from a lubrication gap between an oil seal 9, and a leakage sealing device which belongs to be arranged in the existing annular groove structure, and a sealing device which belongs to be used for improving the leakage of the sealing device, and a sealing structure which belongs to be used for improving the leakage of the sealing device, and a sealing device which belongs to be used for the sealing device, and belongs to be used for improving the sealing device.

Those not described in detail in this specification are within the skill of the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Worm gear reducer, including shell (1), motor frame (17) and connecting plate (18), its characterized in that: a worm (2) is arranged in the shell (1), the left end and the right end of the worm (2) are welded with a force input shaft (5), a bearing (6) is sleeved on the outer side of the force input shaft (5), an oil seal (7) is arranged on the right side of the bearing (6), an annular sleeve (8) is attached to the outer surface of the oil seal (7), a force input cover (9) is integrally installed on the right side surface of the shell (1), and a first annular groove (10) and a second annular groove (11) are formed in the inner wall of the force input cover (9) respectively;

the motor frame (17) is positioned on the right side of the shell (1), the motor (16) is welded inside the motor frame (17), an outlet end of the motor (16) is connected with an output shaft (15), a limiting strip (14) is distributed on the outer surface of the left end of the output shaft (15), a slot (12) is formed in the right end of the input shaft (5), and a limiting groove (13) is formed in the inner wall of the slot (12);

the connecting plate (18) is welded at the left end of the motor frame (17), a round hole (19) is formed in the connecting plate (18), a threaded column (20) penetrates through the round hole (19), and a nut (21) is screwed to the outer side of the tail end of the threaded column (20).

2. The worm gear reducer of claim 1, wherein: the upper portion of the worm (2) is connected with a worm wheel (3) in a meshing mode, and a transmission shaft (4) penetrates through the middle of the worm wheel (3).

3. The worm gear reducer of claim 1, wherein: the outer surface of the bearing (6) is attached to the inner surface of the first annular groove (10), and the transverse central axis of the bearing (6) and the transverse central axis of the oil seal (7) are located on the same horizontal line.

4. The worm gear reducer of claim 1, wherein: the outer surface of the annular sleeve (8) is smooth, and the central axis of the annular sleeve (8) coincides with the central axis of the oil seal (7).

5. The worm gear reducer of claim 1, wherein: the motor (16) and the input shaft (5) form a rotating structure through the output shaft (15), and the outer surface of the left end of the output shaft (15) is attached to the inner surface of the slot (12).

6. The worm gear reducer of claim 1, wherein: the quantity of spacing groove (13) equals the quantity of spacing strip (14), and the internal surface of spacing groove (13) is laminated with the surface of spacing strip (14) mutually.

7. The worm gear reducer of claim 1, wherein: the connecting plate (18) is in threaded connection with the shell (1) through the threaded column (20), and the threaded column (20) and the shell (1) are welded.