Deceleration direct-connection type transmission stirring mechanism

Abstract

The utility model relates to a speed reduction direct connection type transmission stirring mechanism in the technical field of stirrers, which comprises a driving shaft, a first motor, a speed reducer and a second motor, the driving shaft comprises a sleeve shaft and a shaft rod, the shaft rod is rotatably arranged in the sleeve shaft, the first motor is arranged on one side of the driving shaft, and the second motor is arranged on the other side of the driving shaft. The first motor is in transmission connection with one end of the shaft rod through a belt wheel transmission assembly, an output shaft of the second motor is in transmission connection with the speed reducer, a rotatable driving shaft sleeve is arranged in the middle of the speed reducer, and the middle of the sleeve shaft and the interior of the driving shaft sleeve are fixed in an inserted mode. The second motor transmits rotation driving force to the side wall of the sleeve shaft through the speed reducer to rotate, and the middle of the speed reducer is provided with the rotatable driving shaft sleeve, so that direct-connection transmission can be formed between the middle of the sleeve shaft and the speed reducer, and on one hand, the internal structure of the transmission stirring machine is optimized; on the other hand, the transmission bearing range between the speed reducer and the sleeve shaft and between the second motor and the sleeve shaft can be widened, and meanwhile large noise generated by chain transmission can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a speed reduction direct-connection transmission stirring mechanism. Background Art

[0002] The stirring transmission mechanism in the existing mixer generally has multiple stirring shafts and a stirring box, wherein the stirring shaft is generally located in the stirring vessel through the stirring box and performs circular motion along the stirring box as the center, and the stirring shaft can rotate along its own axial direction. Generally, the stirring shaft and the stirring box turn in the same direction. The material in the stirring vessel can form a large-range stirring flow direction through the stirring transmission mechanism and the first stirring flow direction in the large range forms multiple small-range second stirring flow directions.

[0003] The driving shaft is generally composed of a shaft and a sleeve, which can output power to the mixing box and the mixing shaft independently. Since the shaft is to form a small-scale second mixing flow direction and the axial force it is subjected to is small, it can be transmitted through a pulley transmission assembly; while the sleeve is to form a large-scale first mixing flow direction and the axial force it is subjected to is large, and it is generally necessary to transmit power through a chain or a synchronous belt and the middle part of the sleeve. Its structure is as follows: Figure 5 As shown, the chain drive has large noise, and the synchronous belt has technical defects such as low transmission bearing capacity. Therefore, in view of these current situations, it is urgent to develop a speed reduction direct-connected transmission stirring mechanism to meet the needs of actual use. Utility Model Content

[0004] The utility model aims to provide a speed reducing direct-connection transmission stirring mechanism for solving the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A reduction direct-connected transmission stirring mechanism comprises a driving shaft, a first motor, a reducer and a second motor, wherein the driving shaft comprises a sleeve shaft and a shaft rod, the shaft rod is rotatably arranged inside the sleeve shaft, the sleeve shaft is used to drive an external stirring box, the sleeve shaft is used to drive the external stirring shaft rod, the first motor is arranged on one side of the driving shaft, the first motor is transmission-connected to one end of the shaft rod through a pulley transmission assembly, the output shaft of the second motor is transmission-connected to the reducer, the middle part of the reducer is a rotatable driving shaft sleeve, the driving shaft sleeve is a cylindrical hollow structure, the middle part of the sleeve shaft is plugged and fixed to the inside of the driving shaft sleeve, and the second motor transmits the rotational driving force to the side wall of the sleeve shaft through the reducer for rotation.

[0007] In the above description, as a further solution, a first sleeve through hole is opened in the middle of the reducer, and the driving shaft sleeve is rotatably arranged inside the first sleeve through hole.

[0008] In the above description, as a further solution, the side wall of the drive sleeve is provided with a first keyway, and the first keyway is a vertical structure opened on the side walls of the drive sleeve at both ends; the side wall of the sleeve shaft is provided with a second keyway matching the first keyway, and a flat key is provided between the first keyway and the second keyway, and the drive sleeve and the sleeve shaft are fixedly connected by the flat key, and the flat key is embedded between the first keyway and the second keyway for clearance fit.

[0009] In the above description, as a further solution, the pulley transmission assembly is composed of a driving pulley, a driven pulley and a multi-V belt, the middle part of the driven pulley is fixedly connected to the top of the shaft, the middle part of the driving pulley is fixedly connected to the output shaft of the first motor, and the multi-V belt is wrapped around the driving pulley and the driven pulley for belt connection.

[0010] In the above description, as a further solution, the cross-section of the poly-V belt is a plurality of equally spaced trapezoidal wedge-shaped structures inclined inwardly at 40 degrees, and the side walls of the poly-V belt respectively contact the driven pulley and the driving pulley.

[0011] In the above description, as a further solution, the middle part of the drive sleeve is a second sleeve connecting hole with a cylindrical hollow structure, bearings are provided at both ends of the second sleeve connecting hole, and the two ends of the shaft rod are respectively plugged into the bearings, and the shaft rod is rotatably arranged inside the second sleeve connecting hole through the bearings.

[0012] In the above description, as a further solution, both ends of the shaft extend to the outside of both ends of the sleeve shaft respectively, and a synchronous wheel is provided at one end of the shaft away from the pulley transmission assembly, and the synchronous wheel is used to drive the external stirring shaft.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] A reduction direct-connected transmission stirring mechanism of the present application is provided with a rotatable driving shaft sleeve in the middle part of the reducer, so that a direct-connected transmission can be formed between the middle part of the sleeve shaft and the reducer. On the one hand, it optimizes the internal structure of the transmission mixer, and on the other hand, it can increase the transmission load-bearing range between the reducer and the second motor and the sleeve shaft, while avoiding the large noise generated by the chain drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a speed reduction direct-connection transmission stirring mechanism described in the utility model;

[0016] Figure 2 This is a schematic diagram of the structure decomposition of a speed reduction direct-connection transmission stirring mechanism described in the utility model;

[0017] Figure 3 for Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part;

[0018] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure of B in the middle;

[0019] Figure 5 It is a transmission structure of an existing transmission stirring mechanism;

[0020] In the figure: 1-shaft, 11-synchronous wheel, 2-sleeve shaft, 21-second sleeve connection hole, 22-second keyway, 23-bearing, 3-first motor, 4-pulley transmission assembly, 41-driving pulley, 42-driven pulley, 43-multi-V belt, 5-reducer, 51-first sleeve connection hole, 52-driving shaft sleeve, 53-first keyway, 6-second motor, 7-flat key, 8-external stirring shaft, 9-driving shaft. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0022] See also Figure 1-4 The specific implementation of a speed reduction direct-connection transmission stirring mechanism includes a driving shaft 9, a first motor 3, a speed reducer 5, and a second motor 6. The driving shaft 9 includes a sleeve shaft 2 and a shaft rod 1. The middle part of the driving shaft sleeve 52 is a second sleeve through hole 21 of a cylindrical hollow structure. Both ends of the second sleeve through hole 21 are provided with bearings 23. Both ends of the shaft rod 1 are respectively plugged with the bearings 23. The shaft rod 1 is rotatably arranged inside the second sleeve through hole 21 through the bearings 23. The shaft rod 1 is rotatably arranged inside the sleeve shaft 2. Both ends of the shaft rod 1 extend to the outside of both ends of the sleeve shaft 2, and the shaft rod A synchronous wheel 11 is provided at one end away from the pulley transmission assembly 4, and the synchronous wheel 11 is used to drive the external stirring shaft 8. The first motor 3 is arranged on one side of the driving shaft 9, and the first motor 3 is connected to one end of the shaft 1 through the pulley transmission assembly 4. The output shaft of the second motor 6 is connected to the reducer 5. The middle part of the reducer 5 is a rotatable driving sleeve 52, and the driving sleeve 52 is a cylindrical hollow structure. The middle part of the sleeve shaft 2 is plugged and fixed to the inside of the driving sleeve 52. The second motor 6 transmits the rotational driving force to the side wall of the sleeve shaft 2 through the reducer 5 to rotate.

[0023] In this embodiment, Figure 3 and 4As shown, a first sleeve through hole 51 is opened in the middle of the reducer 5, and a driving sleeve 52 is rotatably arranged inside the first sleeve through hole 51. A first keyway 53 is opened on the side wall of the driving sleeve 52. The first keyway 53 is a vertical structure opened on the side walls of both ends of the driving sleeve 52; a second keyway 22 matching the first keyway 53 is opened on the side wall of the sleeve shaft 2, and a flat key 7 is arranged between the first keyway 53 and the second keyway 22. The driving sleeve 52 and the sleeve shaft 2 are fixedly connected by the flat key 7, and the flat key 7 is embedded between the first keyway 53 and the second keyway 22 for clearance fit.

[0024] In this embodiment, Figure 2 As shown, the pulley transmission assembly 4 is composed of a driving pulley 41, a driven pulley 42 and a poly-V belt 43. The middle part of the driven pulley 42 is fixedly connected to the top of the shaft 1, the middle part of the driving pulley 41 is fixedly connected to the output shaft of the first motor 3, and the poly-V belt 43 is wrapped around the driving pulley 41 and the driven pulley 42 for belt connection. Among them, the cross section of the poly-V belt 43 is a plurality of equally spaced trapezoidal wedge-shaped structures inclined inward at 40°, and the side walls of the poly-V belt 43 are respectively in contact with the driven pulley 42 and the driving pulley 41. Since the poly-V belt 43 is light, flexible and has a reasonable structure, the working stress is small and it can work on a smaller pulley; the poly-V belt 43 also has the characteristics of small transmission vibration, fast heat dissipation, stable operation, small elongation in use, large transmission ratio and high limit linear speed, and is particularly suitable for transmission stirring mechanisms with compact structure requirements and for external stirring shafts 8 with small transmission power and high-speed transmission.

[0025] A rotatable driving sleeve 52 is provided in the middle of the reducer 5, so that a direct connection transmission can be formed between the middle of the sleeve shaft 2 and the reducer 5. On the one hand, the internal structure of the transmission mixer is optimized, and on the other hand, the transmission load range between the reducer 5 and the second motor 6 and the sleeve shaft 2 can be improved, while avoiding the large noise generated by the chain drive.

[0026] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A speed reduction direct-connection transmission stirring mechanism, characterized in that: include: A driving shaft, the driving shaft comprising a sleeve shaft and a shaft rod, the sleeve shaft is a cylindrical hollow structure, the shaft rod is rotatably arranged inside the sleeve shaft, the sleeve shaft is used to drive an external stirring box, and the sleeve shaft is used to drive the external stirring shaft rod; A first motor, which is disposed on one side of the driving shaft and is transmission-connected to one end of the shaft through a pulley transmission assembly; A reducer and a second motor, wherein the output shaft of the second motor is transmission-connected to the reducer, the middle part of the reducer is a rotatable drive sleeve, the middle part of the sleeve shaft is plugged and fixed to the inside of the drive sleeve, and the second motor transmits the rotational driving force to the side wall of the sleeve shaft through the reducer for rotation.

2. A speed reduction direct-connection transmission stirring mechanism according to claim 1, characterized in that: A first sleeve through hole is opened in the middle of the reducer, and the driving shaft sleeve is rotatably arranged inside the first sleeve through hole.

3. A speed reduction direct-connection transmission stirring mechanism according to claim 2, characterized in that: The side wall of the driving sleeve is provided with a first keyway, and the first keyway is a vertical structure opened on the side walls of both ends of the driving sleeve; the side wall of the sleeve shaft is provided with a second keyway matching the first keyway, and a flat key is provided between the first keyway and the second keyway. The driving sleeve and the sleeve shaft are fixedly connected by the flat key, and the flat key is embedded between the first keyway and the second keyway for clearance fit.

4. A speed reducing direct-connection transmission stirring mechanism according to claim 1, characterized in that: The pulley transmission assembly consists of a driving pulley, a driven pulley and a multi-V belt. The middle part of the driven pulley is fixedly connected to the top of the shaft, the middle part of the driving pulley is fixedly connected to the output shaft of the first motor, and the multi-V belt is wrapped around the driving pulley and the driven pulley for belt connection.

5. A speed reducing direct-connection transmission stirring mechanism according to claim 4, characterized in that: The cross section of the multi-V belt is a plurality of equally spaced trapezoidal wedge-shaped structures inclined inwardly at 40 degrees, and the side walls of the multi-V belt respectively contact the driven pulley and the driving pulley.

6. The speed reducing direct-connection transmission stirring mechanism according to claim 1, characterized in that: The middle part of the driving sleeve is a second sleeve connecting hole of a cylindrical hollow structure. Both ends of the second sleeve connecting hole are provided with bearings. Both ends of the shaft rod are respectively plugged into the bearings. The shaft rod is rotatably arranged inside the second sleeve connecting hole through the bearings.

7. A speed reduction direct-connection transmission stirring mechanism according to any one of claims 1 to 6, characterized in that: The two ends of the shaft rod extend to the outside of the two ends of the sleeve shaft respectively, and a synchronous wheel is provided at one end of the shaft rod away from the pulley transmission assembly, and the synchronous wheel is used to drive the external stirring shaft rod.

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