Coaxial two-stage transmission structure of dryer

Abstract

The utility model relates to the technical field of dryers, in particular to a coaxial two-stage transmission structure of a dryer, which comprises a frame, an output shaft and a motor, the output shaft is rotatably mounted on the frame, the motor is mounted on the frame through a fixing frame, and the output shaft is connected with a connecting shaft of the motor through a transmission mechanism. The transmission mechanism comprises an adjusting assembly, an intermediate shaft, a first-stage transmission assembly and a second-stage transmission assembly, the adjusting assembly is fixedly arranged on the rack, the intermediate shaft is rotationally connected with the adjusting assembly, the axes of the connecting shaft, the output shaft and the intermediate shaft are located on the same axis, and the connecting shaft and the intermediate shaft are in transmission connection through the first-stage transmission assembly; the intermediate shaft and the output shaft are in transmission connection through a second-stage transmission assembly. Through the arrangement of the transmission mechanism, replacement and maintenance can be facilitated, meanwhile, the transmission efficiency can be improved, in combination with the arrangement of the coaxial line, the equipment structure can be compact, the space can be saved, meanwhile, the running balance of the equipment can be better ensured, and the working stability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machines, in particular to a coaxial line two-stage transmission structure of a drying machine. Background Art

[0002] At present, the dryers on the market mainly use reduction gearboxes for transmission, but it is difficult to replace the broken reduction gearbox and the maintenance cost is high. In addition, the transmission mechanism layout of some dryers is unreasonable, resulting in low transmission efficiency, high energy consumption, and large losses. Utility Model Content

[0003] In view of the technical problems in the prior art, the utility model provides a coaxial two-stage transmission structure of a dryer, comprising a frame, an output shaft and a motor, wherein the output shaft is rotatably mounted on the frame, one end of the output shaft located in the frame is connected to the rotating shaft of the drum, the motor is mounted on the frame through a fixed frame and is located above the output shaft, the output shaft is connected to the connecting shaft of the motor through a transmission mechanism, the transmission mechanism comprises an adjusting assembly, an intermediate shaft, a primary transmission assembly and a secondary transmission assembly, the adjusting assembly is fixedly arranged on the frame and is located below the output shaft, the intermediate shaft is rotatably connected to the adjusting assembly, the axes of the connecting shaft, the output shaft and the intermediate shaft are on the same axis, the connecting shaft and the intermediate shaft are transmission-connected through the primary transmission assembly, and the intermediate shaft and the output shaft are transmission-connected through the secondary transmission assembly.

[0004] Furthermore, the primary transmission assembly and the secondary transmission assembly each include a driving wheel, a driven wheel and a belt, the two driving wheels are fixedly connected to the connecting shaft and the intermediate shaft respectively, the two driven wheels are fixedly connected to the intermediate shaft and the output shaft respectively, the driving wheel on the intermediate shaft is located on the side of the driven wheel close to the frame, one end of one of the belts is connected to the driving wheel of the connecting shaft, and the other end is connected to the driven wheel of the intermediate shaft, and one end of the other belt is connected to the driving wheel of the intermediate shaft, and the other end is connected to the driven wheel of the output shaft.

[0005] Furthermore, the adjustment assembly includes a mounting block, a bearing seat and two adjusting screws, the mounting block is fixedly connected to the frame by screws, the mounting block is provided with a slide groove, and the groove direction of the slide groove is a vertical direction, the upper and lower ends of the mounting block are provided with threaded holes connected to the slide groove, the bearing seat is slidably installed in the slide groove, the two adjusting screws are threadedly connected to the two threaded holes respectively, and one end of the adjusting screw abuts against the bearing seat, and the intermediate shaft is rotatably connected to the bearing seat through a bearing.

[0006] Furthermore, the adjustment assembly also includes two support plates, the two support plates are spaced apart in the vertical direction and fixedly connected to the frame, the mounting block is located between the two support plates, a through hole is provided on the support plate, one end of the adjustment screw away from the mounting block passes through the through hole and extends to the outside of the support plate, and the adjustment screw is locked to the support plate by a nut.

[0007] Furthermore, the adjustment components include two groups, and the two groups of adjustment components are arranged at intervals along the axial direction of the intermediate shaft.

[0008] Furthermore, the fixing frame includes a base plate, a connecting plate, two bolts, a first rotating rod and a second rotating rod, the base plate is fixedly installed on the frame, one end of the connecting plate is rotatably connected to the upper surface of the base plate through the first rotating rod, and the other end is provided with two first connecting holes, the second rotating rod is rotatably connected to the lower surface of the base plate and is located below the two first connecting holes, and two second connecting holes are provided on the base plate, one end of the two bolts passes through the two second connecting holes and is fixedly connected to the second rotating rod, and the other end is slidably connected to the two first connecting holes, two nuts are threadedly connected to the bolts, the two nuts are respectively located on the upper and lower sides of the first connecting hole, and the bolts and the connecting plate are locked by two nuts.

[0009] Beneficial effects:

[0010] 1. The utility model can facilitate replacement and maintenance by setting up a transmission mechanism including an adjustment component, an intermediate shaft, a primary transmission component and a secondary transmission component. Compared with the existing reduction box transmission structure, it can solve the problem of difficult replacement of the reduction box and high maintenance cost. At the same time, it can improve transmission efficiency, save energy and reduce losses. Combined with the setting located on the same axis, it can make the equipment structure compact and save space. At the same time, it can better ensure the balance of equipment operation and improve working stability.

[0011] 2. In the utility model, by means of the arrangement of the driving wheel, the driven wheel and the belt, the force transmission between the connecting shaft, the intermediate shaft and the output shaft can be realized conveniently and quickly; by means of the arrangement of the mounting block, the bearing seat, the two adjusting screws, the slide groove, the threaded hole and the bearing, the upper and lower positions of the intermediate shaft can be conveniently adjusted by means of a push-up method, thereby realizing the adjustment of the spacing between the intermediate shaft and the connecting shaft and the output shaft, and further realizing the tension adjustment of the belt; in combination with the arrangement of the two support plates and the nut, the locking of the adjusting screw can be realized, thereby preventing the adjusting screw from loosening during use; in combination with the arrangement of the two sets of adjusting components, the supporting strength of the intermediate shaft can be improved.

[0012] 3. In the utility model, the spacing between the connecting shaft and the intermediate shaft can be conveniently adjusted through the arrangement of the bottom plate, the connecting plate, the two bolts, the first rotating rod and the second rotating rod, so that the belt tensioning between the two can be adjusted. The specific process is that, first, the corresponding nut on the bolt is loosened according to the direction to be adjusted. When the spacing is increased, the upper nut is loosened. When the spacing is reduced, the lower nut is loosened. Then, by adjusting the other nut, it drives the connecting plate to rotate upward or downward around the first rotating rod. Finally, the loosened nut is locked. In addition, the installation of the two-stage transmission structure can be facilitated. The specific process is that, during installation, the belt between the output shaft and the intermediate shaft is first tightened by adjusting the position of the intermediate shaft. Then, the belt between the intermediate shaft and the connecting shaft is tightened by rotating the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the installation structure of the first spray head of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the second sprinkler head and the protective shed of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall installation structure of the utility model.

[0017] Description of reference numerals:

[0018] 1. Frame; 2. Output shaft; 3. Motor; 4. Fixed frame; 41. Bottom plate; 42. Connecting plate; 43. Bolt; 44. First rotating rod; 45. Second rotating rod; 5. Adjusting assembly; 51. Mounting block; 52. Bearing seat; 53. Adjusting screw; 54. Support plate; 6. Intermediate shaft; 7. Driving wheel; 8. Driven wheel; 9. Belt. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0025] The utility model provides a coaxial two-stage transmission structure of a drying machine, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a frame 1, an output shaft 2 and a motor 3, the output shaft 2 is rotatably mounted on the frame 1, one end of the output shaft 2 located in the frame 1 is connected to the rotating shaft of the drum, the motor 3 is mounted on the frame 1 through a fixing frame 4 and is located above the output shaft 2, the output shaft 2 is connected to the connecting shaft of the motor 3 through a transmission mechanism, the transmission mechanism includes an adjusting component 5, an intermediate shaft 6, a primary transmission component and a secondary transmission component, the adjusting component 5 is fixedly arranged on the frame 1 and is located below the output shaft 2, the intermediate shaft 6 is rotatably connected to the adjusting component 5, the axes of the connecting shaft, the output shaft 2 and the intermediate shaft 6 are on the same axis, the connecting shaft and the intermediate shaft 6 are transmission-connected through the primary transmission component, and the intermediate shaft 6 and the output shaft 2 are transmission-connected through the secondary transmission component.

[0026] In this embodiment, by setting up a transmission mechanism including an adjusting component 5, an intermediate shaft 6, a primary transmission component and a secondary transmission component, replacement and maintenance can be facilitated. Compared with the existing reduction gearbox transmission structure, the problem of difficult replacement of the reduction gearbox and high maintenance cost can be solved. At the same time, the transmission efficiency can be improved, energy can be saved and losses can be reduced. Combined with the setting located on the same axis, the equipment structure can be compact and space can be saved. At the same time, the balance of equipment operation can be better ensured and the working stability can be improved.

[0027] In the present invention, preferably, Figure 1 , Figure 2 and Figure 3As shown, the primary transmission assembly and the secondary transmission assembly both include a driving wheel 7, a driven wheel 8 and a belt 9. The two driving wheels 7 are fixedly connected to the connecting shaft and the intermediate shaft 6, respectively. The two driven wheels 8 are fixedly connected to the intermediate shaft 6 and the output shaft 2, respectively. The driving wheel 7 on the intermediate shaft 6 is located on the side of the driven wheel 8 close to the frame 1. The diameter of the driving wheel 7 is smaller than that of the driven wheel 8. One end of one of the belts 9 is connected to the driving wheel 7 of the connecting shaft, and the other end is connected to the driven wheel 8 of the intermediate shaft 6. One end of the other belt 9 is connected to the driving wheel 7 of the intermediate shaft 6, and the other end is connected to the driven wheel 8 of the output shaft 2. During installation, ensure that the belts 9 are in the same horizontal plane to improve stability. To facilitate the connection of the belt 9 with the driving wheel 7 or the driven wheel 8, a tapered sleeve can be provided between the two.

[0028] In this embodiment, by providing the driving wheel 7, the driven wheel 8 and the belt 9, the force transmission between the connecting shaft, the intermediate shaft 6 and the output shaft 2 can be realized conveniently and quickly.

[0029] In the present invention, preferably, Figure 1 , Figure 2 and Figure 3 As shown, the adjustment assembly 5 includes a mounting block 51, a bearing seat 52 and two adjusting screws 53. The mounting block 51 is fixedly connected to the frame 1 by screws. A slide groove is provided on the mounting block 51, and the channel direction of the slide groove is in the vertical direction. Threaded holes communicating with the slide groove are provided at both the upper and lower ends of the mounting block 51. The bearing seat 52 is slidably mounted in the slide groove. The two adjusting screws 53 are respectively threadedly connected to the two threaded holes, and one end of the adjusting screw 53 abuts against the bearing seat 52. The intermediate shaft 6 is connected to the bearing seat 52 by a bearing. The seat 52 is rotatably connected; the adjusting component 5 also includes two support plates 54, the two support plates 54 are arranged at intervals in the vertical direction and are fixedly connected to the frame 1, the mounting block 51 is located between the two support plates 54, the support plate 54 is provided with a through hole, the end of the adjusting screw 53 away from the mounting block 51 passes through the through hole and extends to the outside of the support plate 54, and the adjusting screw 53 is locked with the support plate 54 by a nut; the adjusting component 5 includes two groups, and the two groups of adjusting components 5 are arranged at intervals along the axial direction of the intermediate shaft 6.

[0030] In this embodiment, by setting the mounting block 51, the bearing seat 52, the two adjusting screws 53, the slide groove, the threaded hole and the bearing, the upper and lower positions of the intermediate shaft 6 can be conveniently adjusted by pushing, so as to adjust the distance between the intermediate shaft 6 and the connecting shaft and the output shaft 2, and then adjust the tension of the belt 9; combined with the setting of the two support plates 54 and the nut, the adjusting screw 53 can be locked, so as to avoid the loosening of the adjusting screw 53 during use; combined with the setting of the two groups of adjustment components 5, the support strength of the intermediate shaft 6 can be improved.

[0031] In the present invention, preferably, Figure 1 , Figure 2 and Figure 3 As shown, the fixing frame 4 includes a base plate 41, a connecting plate 42, two bolts 43, a first rotating rod 44 and a second rotating rod 45. The base plate 41 is fixedly mounted on the frame 1. One end of the connecting plate 42 is rotatably connected to the upper surface of the base plate 41 through the first rotating rod 44, and the other end is provided with two first connecting holes. The second rotating rod 45 is rotatably connected to the lower surface of the base plate 41 and is located below the two first connecting holes. Two second connecting holes are provided on the base plate 41. One end of the two bolts 43 passes through the two second connecting holes and is fixedly connected to the second rotating rod 45, and the other end is slidably connected to the two first connecting holes. Two nuts are threadedly connected to the bolts 43, and the two nuts are respectively located on the upper and lower sides of the first connecting hole. The bolts 43 are locked with the connecting plate 42 by two nuts.

[0032] In this embodiment, by setting the bottom plate 41, the connecting plate 42, the two bolts 43, the first rotating rod 44 and the second rotating rod 45, it is possible to conveniently adjust the distance between the connecting shaft and the intermediate shaft 6, so as to realize the adjustment of the tension of the belt 9 between the two. The specific process is that, first, according to the direction to be adjusted, the corresponding nut on the bolt 43 is loosened. When increasing the distance, the upper nut is loosened, and when reducing the distance, the lower nut is loosened. Then, by adjusting the other nut, it drives the connecting plate 42 to rotate upward or downward around the first rotating rod 44. Finally, the loosened nut is locked. In addition, it is also convenient to install the two-stage transmission structure. The specific process is that during installation, the belt 9 between the output shaft 2 and the intermediate shaft 6 is first tightened by adjusting the position of the intermediate shaft 6, and then the belt 9 between the intermediate shaft 6 and the connecting shaft is tightened by rotating the connecting plate 42.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A coaxial two-stage transmission structure of a drying machine, comprising a frame (1), an output shaft (2) and a motor (3), wherein the output shaft (2) is rotatably mounted on the frame (1), one end of the output shaft (2) located inside the frame (1) is connected to the rotating shaft of the drum, the motor (3) is mounted on the frame (1) through a fixing frame (4) and is located above the output shaft (2), the output shaft (2) is connected to the connecting shaft of the motor (3) through a transmission mechanism, and is characterized in that: The transmission mechanism comprises an adjusting assembly (5), an intermediate shaft (6), a primary transmission assembly and a secondary transmission assembly. The adjusting assembly (5) is fixedly arranged on the frame (1) and is located below the output shaft (2). The intermediate shaft (6) is rotationally connected to the adjusting assembly (5). The axes of the connecting shaft, the output shaft (2) and the intermediate shaft (6) are on the same axis. The connecting shaft and the intermediate shaft (6) are transmission-connected via the primary transmission assembly, and the intermediate shaft (6) and the output shaft (2) are transmission-connected via the secondary transmission assembly.

2. A coaxial two-stage transmission structure of a dryer according to claim 1, characterized in that: The primary transmission assembly and the secondary transmission assembly both comprise a driving wheel (7), a driven wheel (8) and a belt (9); the two driving wheels (7) are respectively fixedly connected to the connecting shaft and the intermediate shaft (6); the two driven wheels (8) are respectively fixedly connected to the intermediate shaft (6) and the output shaft (2); the driving wheel (7) on the intermediate shaft (6) is located on a side of the driven wheel (8) close to the frame (1); one end of one of the belts (9) is connected to the driving wheel (7) of the connecting shaft, and the other end is connected to the driven wheel (8) of the intermediate shaft (6); one end of the other belt (9) is connected to the driving wheel (7) of the intermediate shaft (6), and the other end is connected to the driven wheel (8) of the output shaft (2).

3. A coaxial two-stage transmission structure of a dryer according to claim 2, characterized in that: The adjustment assembly (5) comprises a mounting block (51), a bearing seat (52) and two adjustment screws (53); the mounting block (51) is fixedly connected to the frame (1) by screws; a slide groove is provided on the mounting block (51), and the channel direction of the slide groove is a vertical direction; threaded holes communicating with the slide groove are provided at both upper and lower ends of the mounting block (51); the bearing seat (52) is slidably mounted in the slide groove; the two adjustment screws (53) are respectively threadedly connected to the two threaded holes, and one end of the adjustment screw (53) abuts against the bearing seat (52); and the intermediate shaft (6) is rotatably connected to the bearing seat (52) via a bearing.

4. A coaxial two-stage transmission structure of a dryer according to claim 3, characterized in that: The adjustment assembly (5) further comprises two support plates (54), the two support plates (54) are arranged at intervals in the vertical direction and are fixedly connected to the frame (1), the mounting block (51) is located between the two support plates (54), a through hole is provided on the support plate (54), one end of the adjustment screw (53) away from the mounting block (51) passes through the through hole and extends to the outside of the support plate (54), and the adjustment screw (53) is locked with the support plate (54) by a nut.

5. The coaxial two-stage transmission structure of a dryer according to claim 4, characterized in that: The adjustment components (5) include two groups, and the two groups of adjustment components (5) are arranged at intervals along the axial direction of the intermediate shaft (6).

6. A coaxial two-stage transmission structure for a dryer according to any one of claims 1 to 5, characterized in that: The fixing frame (4) comprises a bottom plate (41), a connecting plate (42), two bolts (43), a first rotating rod (44) and a second rotating rod (45); the bottom plate (41) is fixedly mounted on the frame (1); one end of the connecting plate (42) is rotatably connected to the upper surface of the bottom plate (41) through the first rotating rod (44); the other end is provided with two first connecting holes; the second rotating rod (45) is rotatably connected to the lower surface of the bottom plate (41) and is located below the two first connecting holes; the bottom plate (41) is provided with two second connecting holes; one end of the two bolts (43) passes through the two second connecting holes and is fixedly connected to the second rotating rod (45); the other end is slidably connected to the two first connecting holes; two nuts are threadedly connected to the bolts (43); the two nuts are respectively located at the upper and lower sides of the first connecting hole; the bolts (43) are locked with the connecting plate (42) by two nuts.

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