CN215861548U

CN215861548U - Dual-mode speed reducer and all-in-one machine

Info

Publication number: CN215861548U
Application number: CN202121690829.0U
Authority: CN
Inventors: 王大伟; 孙即明
Original assignee: Qingdao CCS Electric Corp
Current assignee: Qingdao CCS Electric Corp
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-18
Anticipated expiration: 2031-07-23

Abstract

The utility model provides a dual-mode speed reducer and an all-in-one machine, wherein the speed reducer comprises: the input connecting shaft and the output connecting shaft are parallel to each other, extend along the width direction of the machine shell and are distributed in parallel in the length direction of the machine shell; the input connecting shaft comprises a first cylinder, and both ends of the first cylinder are open and are provided with structures for driving and connecting the motor mechanisms; the output connecting shaft comprises a second cylinder body, and both ends of the second cylinder body are provided with openings which are provided with structures for driving and connecting the scraper conveyor; and the speed reducing structure is arranged in the shell, is in transmission connection with the input connecting shaft and the output connecting shaft, and is used for carrying out rotating speed reduction processing on the power of the input connecting shaft and transmitting the power to the output connecting shaft. The speed reducer provided by the utility model can be applied to machine head driving equipment and machine tail driving equipment, so that the speed reducer has the advantage of strong universality.

Description

Dual-mode speed reducer and all-in-one machine

Technical Field

The present invention relates generally to the field of all-in-one machine technology. More specifically, the utility model relates to a dual-mode speed reducer and a one-piece machine.

Background

The scraper conveyor structurally comprises a driving device and a conveying device, wherein the driving device comprises a motor mechanism and a speed reducer, and the conveying device comprises a chain wheel, a chain and a chute. The output end of the motor mechanism is in transmission connection with the input end of the speed reducer, and the power generated by the motor mechanism is input into the speed reducer; the output end of the speed reducer is in transmission connection with the chain wheel, the power received by the motor mechanism is reduced and transmitted to the chain wheel in the conveying device to rotate through the driving chain wheel, the chain wheel drives the chute to move when rotating, and dust collected in the ash bin is conveyed to a designated position.

The drive device of the scraper machine comprises a machine head drive device arranged at a machine head of the scraper machine and a machine tail drive device arranged at a machine tail of the scraper machine, and the structures of the machine head and the machine tail of the scraper machine are different, so that the machine head and the machine tail are matched, the structures of speed reducers in the machine head drive device and the machine tail drive device are different, namely, the speed reducers in the machine head drive device and the machine tail drive device of the scraper machine in the prior art are different, and one speed reducer can only be used in the machine head drive device or only can be used in the machine tail drive device. Different speed reducers need different assembly modes of different production dies during production, so that the problem of high production cost is caused.

As described above, the speed reducer of the scraper driving device in the related art has a problem of high cost due to its poor versatility.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dual-mode speed reducer and an all-in-one machine, which at least solve the problem that the speed reducer of scraper conveyor driving equipment in the prior art is low in universality and high in production cost.

To solve the above problem, an aspect of the present invention provides a dual mode speed reducer, including: the input connecting shaft and the output connecting shaft are parallel to each other, extend along the width direction of the machine shell and are distributed in parallel in the length direction of the machine shell; the input connecting shaft comprises a first cylinder body, two ends of the first cylinder body are both open, and a first connecting structure for driving and connecting the motor mechanism is arranged in the first cylinder body, so that the motor mechanism can be connected to two ends of the first cylinder body; the output connecting shaft comprises a second cylinder body, openings are formed in two ends of the second cylinder body, and a second connecting structure used for being in transmission connection with the scraper conveyor is arranged in the second cylinder body, so that the scraper conveyor can be connected from two ends of the second cylinder body; and the speed reducing structure is arranged in the shell, is in transmission connection with the input connecting shaft and the output connecting shaft, and is used for carrying out rotating speed reduction processing on the power of the input connecting shaft and transmitting the power to the output connecting shaft.

According to an embodiment of the present invention, the first coupling structure includes a first coupling key provided on an inner wall of the first cylinder, and the second coupling structure includes a second coupling key provided on an inner wall of the second cylinder.

According to another embodiment of the present invention, the deceleration structure includes: the length direction of the shaft is the width direction of the machine shell, and the axes of the shaft, the input connecting shaft and the output connecting shaft are distributed in parallel along the length direction of the machine shell; the first gear is coaxially arranged with the input connecting shaft; the second gear is meshed with the first gear, has a diameter larger than that of the first gear, and is used for being matched with the first gear to reduce the rotating speed of power for the first time; the third gear is coaxially arranged with the second gear and is in transmission connection with the intermediate connecting shaft, and the diameter of the third gear is smaller than that of the second gear; and the fourth gear is coaxially arranged with the output connecting shaft and meshed with the third gear, the diameter of the fourth gear is larger than that of the third gear, and the fourth gear is matched with the third gear to reduce the rotating speed of the power again.

Further in accordance with yet another embodiment of the present invention the moving gears, the second moving gear, the third gear and the fourth gear are herringbone gears for preventing the gears from drifting.

Further, according to another embodiment of the present invention, the intermediate connecting shaft is disposed through the housing to provide support for the second gear and the third gear.

Still further in accordance with another embodiment of the present invention, the intermediate connecting shaft is rotatably fitted to the casing through a bearing.

According to a further embodiment of the utility model, the first cylinder is provided with gear teeth on its outer wall to constitute the first gear, and the second cylinder is provided coaxially and integrally with the fourth gear.

According to one embodiment of the utility model, the housing is rectangular for facilitating the installation and transportation of the reducer.

According to another embodiment of the utility model, the housing is provided with a mounting structure for mounting the reducer on a scraper.

In another aspect, the present invention further provides an all-in-one machine, including: in the speed reducer according to any of the embodiments, the speed reducer includes a housing; the motor mechanism is arranged on one side of the width direction of the shell, is detachably assembled with the speed reducer and is in transmission connection with an input connecting shaft of the speed reducer; and the frequency conversion mechanism and the motor mechanism are arranged in parallel along the length direction of the shell, are positioned on the same side of the speed reducer shell, and are detachably assembled with the speed reducer.

According to the technical scheme provided by the utility model, the two ends of the first cylinder in the input connecting shaft and the two ends of the second cylinder in the output connecting shaft of the speed reducer are provided with openings, so that the two sides in the width direction can be provided with the motor mechanisms. When the motor mechanism is assembled on the first side face of the width direction of the speed reducer shell, the all-in-one machine can be used as a machine head driving device of a scraper machine; when the motor mechanism is assembled on the second side face of the width direction of the shell of the speed reducer, the all-in-one machine can be used as tail driving equipment of the scraper conveyor, so that the speed reducer provided by the utility model can be applied to the head driving equipment and the tail driving equipment, and has the advantage of strong universality. And because only one production die and assembly mode are needed when the speed reducer provided by the utility model is produced, the production cost is lower.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

fig. 1 is a first perspective view of a speed reducer according to an embodiment of the utility model;

fig. 2 is a second perspective view of a speed reducer according to an embodiment of the utility model;

FIG. 3 is a schematic diagram of a retarding mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of an intermediate connecting shaft according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another reducer according to an embodiment of the utility model;

FIG. 6 is a schematic diagram of an all-in-one machine according to an embodiment of the utility model;

included in fig. 1-6 are: the variable-frequency drive device comprises a speed reducer 1, a motor mechanism 2, a variable-frequency mechanism 3, a machine shell 11, an input connecting shaft 12, an output connecting shaft 13, a first side surface 111, a second side surface 112, a first mounting hole 113, a second mounting hole 114, a third mounting hole 16, a first cylinder 120, a first connecting structure 121, a second cylinder 130, a second connecting structure 131, an intermediate connecting shaft 140, a first gear 141, a second gear 142, a third gear 143, a fourth gear 144, a first bearing 151 and a second bearing 152.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 shows a first perspective view of a speed reducer, and fig. 2 shows a second perspective view of the speed reducer. As shown in fig. 1 and 2, the speed reducer includes a housing 11, an input connecting shaft 12 and an output connecting shaft 13 are disposed on the housing 11, and a speed reducing structure is disposed in the housing 11 and drivingly connects the input connecting shaft 12 and the output connecting shaft 13. The input connecting shaft 12 is used for being in transmission connection with a motor mechanism and obtaining power from the motor mechanism; the speed reducing structure is used for carrying out rotating speed reduction processing on the power acquired by the input connecting shaft 12 and transmitting the power to the output connecting shaft 13; the output connecting shaft 13 is used for being in transmission connection with the scraper conveyor and outputting the power with the reduced rotating speed to the scraper conveyor to drive the scraper conveyor to run. The axes of the input connecting shaft 12 and the output connecting shaft 13 are parallel and parallel. For convenience of description of the structure of the speed reducer, the direction in which the axes of the input connecting shaft 12 and the output connecting shaft 13 extend is referred to as the width direction of the housing 11, and the direction in which the input connecting shaft 12 and the output connecting shaft 13 are arranged in parallel is referred to as the length direction of the housing 11.

The input connecting shaft 12 of the speed reducer comprises a first cylinder 120, the output connecting shaft 13 comprises a second cylinder 130, the first cylinder 120 and the second cylinder 130 are both assembled on the machine shell 11, and the length direction of the first cylinder 120 and the length direction of the second cylinder 130 is the width direction of the machine shell 11, wherein the first cylinder 120 can rotate around the axis of the input connecting shaft 12, and the second cylinder 130 can rotate around the axis of the output connecting shaft 13. The two ends of the first cylinder 120 and the second cylinder 130 are both provided with openings, the first cylinder 120 is provided with a first connecting structure 121 for driving and connecting with a motor mechanism, and the second cylinder 130 is provided with a second connecting structure 131 for driving and connecting with a scraper. The speed reducing structure is in transmission connection with the first cylinder 120 and the second cylinder 130, is used for reducing the rotating speed of the power acquired by the first cylinder 120 from the motor mechanism, and transmits the power to the second cylinder 130, and drives the scraper conveyor to operate through the second cylinder 130.

By adopting the all-in-one machine of the speed reducer provided by the application, when the motor mechanism is assembled on the first side surface 111 of the machine shell 11, the output shaft of the motor mechanism can be in transmission connection with the first connecting structure 121 through the opening of the first cylinder 120 on the first side surface 111, the input shaft of the scraper conveyor can be in transmission connection with the second connecting structure 131 through the opening of the second cylinder 130 on the second side surface 112, and at the moment, the all-in-one machine can be used as a machine head driving device of the scraper conveyor; when the motor mechanism is assembled on the second side surface 112 of the housing 11, the output shaft of the motor mechanism can be in transmission connection with the first connecting structure 121 through the opening of the first cylinder 120 at the second side surface 112, and the input shaft of the scraper can be in transmission connection with the second connecting structure 131 through the opening of the second cylinder 130 at the first side surface 111, so that the all-in-one machine can be used as a tail driving device of the scraper.

In summary, according to the technical solution provided by the present application, the two ends of the first cylinder 120 in the input connecting shaft 12 of the speed reducer are both provided with openings, and the first connecting structure 121 can be connected to the motor mechanism through any opening, so that the motor mechanism can be assembled on both sides of the casing 11 of the speed reducer in the width direction; openings are formed in the two ends of the second cylinder 120 in the reducer output connecting shaft 12, and the second connecting structure 131 can be connected with the scraper conveyor through any opening. When the motor mechanism in the all-in-one machine is assembled on the first side surface 111 of the width direction of the speed reducer shell 11, the all-in-one machine can be used as a machine head driving device of a scraper machine; when the motor mechanism in the all-in-one machine is assembled on the second side surface 112 in the width direction of the speed reducer casing 11, the all-in-one machine can be used as the tail driving device of the scraper conveyor, namely, the all-in-one machine can be used as the head driving device or the tail driving device only by changing the assembling mode of the speed reducer in the all-in-one machine. In other words, the speed reducer that this application provided can be applied to aircraft nose drive apparatus and also can be applied to tail drive apparatus, therefore it has the advantage that the commonality is strong. Because only one production mold and assembly mode are needed during the speed reducer, the production cost is low.

In an application scenario, the first connecting structure 121 is a first connecting key disposed on an inner wall of the first cylinder 120, and the length direction of the first connecting key is the same as the axial direction of the input connecting shaft 12, such as an internal spline disposed on the inner wall of the first cylinder, and the first connecting key is connected with the output shaft of the motor mechanism through the internal spline. The second connecting structure 131 is a second connecting key disposed on the inner wall of the second cylinder 130, and the length direction of the key is the same as the axial direction of the output connecting shaft 13, such as an internal spline disposed on the inner wall of the second cylinder, and the key is connected with the input shaft of the scraper machine through the internal spline. The speed reducer obtained by the arrangement mode can be connected with the motor mechanism and the scraper conveyor in an inserting mode, and convenience in assembly of the speed reducer can be improved.

The speed reducing structure in the housing 11 will be described in detail below by taking a specific implementation as an example.

As shown in fig. 3, the speed reducing structure includes an intermediate connecting shaft 140, a first gear 141, a second gear 142, a third gear 143, and a fourth gear 144, wherein the axial length direction of the intermediate connecting shaft 140 is the same as the axial length directions of the input connecting shaft 12 and the output connecting shaft 13, and the axial directions of the input connecting shaft 12, the intermediate connecting shaft 140, and the output connecting shaft 13 are all the width directions of the casing 11, and the axial lines of the input connecting shaft 12, the intermediate connecting shaft 140, and the output connecting shaft 13 are distributed in parallel in the length direction of the casing 11. The first gear 141 and the input connecting shaft 12 are coaxially disposed and are in transmission connection, the second gear 142 and the first gear 141 are in meshing transmission connection through gear teeth, the third gear 143 and the second gear 142 are coaxially in transmission connection through the intermediate connecting shaft 140, and the fourth gear 144 and the third gear 143 are in meshing transmission connection through gear teeth, and are coaxially disposed and are in transmission connection with the output connecting shaft 13. The diameter of the first gear 141 is smaller than that of the second gear 142, so that the rotation speed of the power is reduced when the power is transmitted from the first gear 141 to the second gear 142; the diameter of the third gear 143 is smaller than that of the second gear 142, and the diameter of the fourth gear 142 is larger than that of the third gear 143, so that the rotation speed is reduced again when power is transmitted from the third gear 143 to the fourth gear 144. In addition, the second gear 142 and the fourth gear 144 may be arranged in a staggered and overlapped manner in the width direction of the housing 11 and arranged in parallel in the length direction of the housing 11, so as to reduce the width of the speed reducer (i.e., the axial length of the speed reducer) and facilitate assembly in a narrow space such as a mine.

The working principle of the speed reducer is as follows: the input connecting shaft 12 takes power from the motor mechanism 2 and transmits the power to the first gear 141 through the transmission connection between the input connecting shaft 12 and the first gear 141; the first gear 141 transmits the power obtained from the input connecting shaft 12 to the second gear 142 through the transmission connection with the second gear 142, and reduces the rotation speed for the first time in the transmission process; the second gear 142 transmits the power it takes to the third gear 143 through the intermediate connecting shaft 140; the third gear 143 is connected to the fourth gear 144 through transmission, and transmits the power taken from the second gear 142 to the fourth gear 144, and the rotation speed is reduced again in the transmission process. The fourth gear 144 transmits the power obtained from the third gear 143 to the output connecting shaft 13, and drives the operation of the scraper by the output connecting shaft 13.

Further, in one application scenario, the first gear 141, the second gear 142, the third gear 143, and the fourth gear 144 are all herringbone gears, and are used to prevent the two gears meshing with each other from drifting in the axial direction. Taking the first gear 141 and the second gear 142 as an example, after the gear teeth of the first gear 141 and the second gear 142 are engaged, the gear teeth of the first gear 141 generate resistance force to prevent the second gear 142 from moving in the axial direction, so as to prevent the second gear 142 from drifting; the teeth of the second gear 142 also provide resistance against the movement of the first gear 141 in the axial direction, preventing it from drifting. Similarly, the third gear 143 and the fourth gear 144 are herringbone gears, which can prevent the drift from occurring.

Further, in another application scenario, the first gear 141 is a part of the first cylinder 120, that is, gear teeth distributed along a circumferential direction of the first cylinder 120 are disposed on an outer wall of a set position of the first cylinder 120, and the gear teeth and the set portion of the first cylinder 120 form the first gear 141, which is disposed in a manner that a diameter of the first gear 141 is reduced, and a transmission ratio between the second gear 142 and the first gear 141 is increased, so as to improve a speed reduction effect when the first gear 141 transmits power to the second gear 142. The fourth gear 144 is assembled on the outer wall of the second cylinder 130, that is, corresponding connection structures are respectively arranged on the inner wall of the fourth gear 144 and the outer wall of the second cylinder (for example, a flat key is arranged on the inner hole of the fourth gear 144 and a corresponding flat key groove is arranged on the outer wall of the second cylinder 130), the second cylinder is assembled on the inner wall of the fourth gear 144 through the connection structures, and in another implementation manner, the fourth gear 144 and the second cylinder 130 can also be integrally arranged to improve the connection reliability.

The following describes an implementation and an operation principle of the intermediate connecting shaft 140 by taking a specific application scenario as an example.

In one application scenario, the intermediate connecting shaft 140 is disposed through the housing 11, that is, two ends of the intermediate connecting shaft 140 are disposed on two lateral sides of the housing 11 along the width direction, respectively, to provide support for assembling the second gear 142 and the third gear 143 in the housing 11. Taking an implementation manner as an example, as shown in fig. 4, a first mounting hole 113 is disposed on the first side surface 111, a second mounting hole 114 is disposed on the second side surface 112, the first mounting hole 113 is opposite to the second mounting hole 114, a first bearing 151 is disposed in the first mounting hole 113, a second bearing 152 is disposed in the second mounting hole 114, and axial lengths of the first bearing 151 and the second bearing 152 are both in a width direction of the casing 11. One end of the intermediate connecting shaft 140 is fixedly fitted in the inner hole of the first bearing 151 and the other end is fixedly fitted in the inner hole of the second bearing 152, so that the intermediate connecting shaft 140 can rotate along its own axis. The intermediate connecting shaft 140 not only can provide support for assembling the second gear 142 and the third gear 143 on the housing 11, but also can transmit power to the third gear 143 when the second gear 142 rotates, so as to realize the transmission connection between the second gear 142 and the third gear 143.

The above-mentioned implementation manner of the intermediate connection shaft 140 is exemplary and not restrictive, and in other application scenarios, the intermediate connection shaft 140 may adopt other implementation manners, such as fixedly mounting both ends of the intermediate connection shaft 140 in the first mounting hole 113 and the second mounting hole 114, respectively, and providing a driving sleeve on the intermediate connection shaft 140, so that the driving sleeve and the intermediate connection shaft 140 can be rotatably assembled (for example, the driving sleeve is assembled on an outer diameter of a bearing, the intermediate connection shaft 140 is assembled in an inner hole of the bearing, and both are rotatably assembled through the bearing), that is, the driving sleeve can rotate with an axis of the intermediate connection shaft 140 as a center line. And the transmission sleeve is fixedly assembled in the inner holes of the second gear 142 and the third gear 143, namely, the second gear 142 and the third gear 143 are in transmission connection through the transmission sleeve. The intermediate connecting shaft 140 of this arrangement may provide support for the assembly of the second gear 142 and the third gear 143, and the driving sleeve may drivingly connect the second gear 142 and the third gear 143.

In one application scenario, the casing 11 is shaped as a rectangular parallelepiped, the axial length direction of the input connecting shaft 12 and the output connecting shaft 13 is the width direction of the casing 11, the direction in which the axes of the input connecting shaft 12, the output connecting shaft 13, and the intermediate connecting shaft 140 are distributed in parallel is the length direction of the casing 11, and the direction perpendicular to the length direction and the width direction is the height direction of the casing 11. The casing 11 is rectangular, so that the speed reducer 1 can be conveniently stacked, placed and installed during transportation or storage.

In one application scenario, the reduction housing 11 is further provided with a mounting structure for supporting the assembly of the reduction mechanism 1 on the scraper, i.e. for assembling the all-in-one machine on the scraper. Taking an implementation manner as an example, as shown in fig. 5, the mounting structure includes a third mounting hole 16 disposed at the periphery of the speed reduction housing 11, when the speed reducer needs to be assembled on the scraper, the third mounting hole 16 on the speed reduction housing 11 is aligned with the mounting hole on the scraper, and then the integrated machine is fixed on the scraper in a manner of matching bolts and nuts

As can be seen from the detailed description, the reducer of the present invention has the openings at both ends of the first cylinder 120 in the input connecting shaft 12 and the second cylinder 130 in the output connecting shaft 13, so that the reducer can be used in both the nose driving device and the tail driving device of the scraper, and therefore, the reducer has strong versatility. In one embodiment, the second gear 142 and the third gear 143 in the transmission structure are coaxially disposed and in transmission connection, so that the second gear 142 and the fourth gear 144 are juxtaposed in the length direction of the casing 11, staggered in the width direction and overlapped, and the axial length of the speed reducer is reduced, which makes it convenient for use in a scene with limited space, such as a mine.

On the other hand, the utility model also provides an all-in-one machine, the structure of which is shown in fig. 6 and comprises a speed reducer 1, a motor mechanism 2 and a frequency conversion mechanism 3. The speed reducer 1 is the speed reducer provided by any one of the above embodiments, and the motor mechanism 2 is arranged on one side (such as the first side surface 111 or the second side surface 112) of the width direction of the speed reducer 1, is in transmission connection with the input transmission shaft 12 in the speed reducer 1, and is used for providing power for the speed reducer 1; the frequency conversion mechanism 3 and the motor mechanism 2 are arranged on the same side of the speed reducer 1, and are arranged in parallel with the motor mechanism 2 along the length direction of the casing 11.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "length," "width," "height," "vertical," "horizontal," "inner," "outer," "axial," "radial," "circumferential," and the like, to indicate an orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of the present specification for the purpose of convenience in explaining the aspects of the present invention and simplifying the description, and do not explicitly or implicitly indicate that the device or element involved must have the particular orientation, be constructed and operated in the particular orientation, and thus should not be interpreted or limited to the aspects of the present invention.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. It is intended that the following claims define the scope of the utility model and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims

1. A dual-mode speed reducer, comprising:

the input connecting shaft and the output connecting shaft are parallel to each other, extend along the width direction of the machine shell and are distributed in parallel in the length direction of the machine shell;

the input connecting shaft comprises a first cylinder body, two ends of the first cylinder body are both open, and a first connecting structure for driving and connecting the motor mechanism is arranged in the first cylinder body, so that the motor mechanism can be connected to two ends of the first cylinder body;

the output connecting shaft comprises a second cylinder body, openings are formed in two ends of the second cylinder body, and a second connecting structure used for being in transmission connection with the scraper conveyor is arranged in the second cylinder body, so that the scraper conveyor can be connected from two ends of the second cylinder body;

and the speed reducing structure is arranged in the shell, is in transmission connection with the input connecting shaft and the output connecting shaft, and is used for carrying out rotating speed reduction processing on the power of the input connecting shaft and transmitting the power to the output connecting shaft.

2. The dual mode reducer according to claim 1, wherein the first connection structure comprises a first connection key provided on the first cylinder inner wall, and the second connection structure comprises a second connection key provided on the second cylinder inner wall.

3. The dual mode reducer of claim 1, wherein the reduction structure comprises:

the length direction of the shaft is the width direction of the machine shell, and the axes of the shaft, the input connecting shaft and the output connecting shaft are distributed in parallel along the length direction of the machine shell;

the first gear is coaxially arranged with the input connecting shaft;

the second gear is meshed with the first gear, has a diameter larger than that of the first gear, and is used for being matched with the first gear to reduce the rotating speed of power for the first time;

the third gear is coaxially arranged with the second gear and is in transmission connection with the intermediate connecting shaft, and the diameter of the third gear is smaller than that of the second gear;

and the fourth gear is coaxially arranged with the output connecting shaft and meshed with the third gear, the diameter of the fourth gear is larger than that of the third gear, and the fourth gear is matched with the third gear to reduce the rotating speed of the power again.

4. A dual mode speed reducer according to claim 3, wherein the first, second, third and fourth gears are all herringbone gears for preventing the gears from drifting.

5. A dual mode speed reducer according to claim 3, wherein the intermediate connecting shaft is disposed through the housing for providing support for the second and third gears.

6. A dual mode speed reducer according to claim 5, wherein the intermediate connecting shaft is rotatably fitted on the housing through a bearing.

7. A dual mode speed reducer according to claim 3, wherein gear teeth are provided on an outer wall of the first cylinder to constitute the first gear, and the second cylinder is coaxially and integrally provided with the fourth gear.

8. A dual mode reducer according to claim 1, in which the housing is rectangular for ease of installation and transport of the reducer.

9. A dual mode reducer according to claim 1, in which the housing is provided with mounting structure for mounting the reducer on a flight.

10. An all-in-one machine, its characterized in that includes:

the reducer of any of claims 1-9, the reducer comprising a housing;

the motor mechanism is arranged on one side of the width direction of the shell, is detachably assembled with the speed reducer and is in transmission connection with an input connecting shaft of the speed reducer;

and the frequency conversion mechanism and the motor mechanism are arranged in parallel along the length direction of the shell, are positioned on the same side of the shell, and are detachably assembled with the speed reducer.