Transmission structure for narrow and long printer

Abstract

The utility model relates to the technical field of printers, and discloses a transmission structure for a narrow and long printer, which comprises a bottom plate, a printing module is arranged at the top end of the bottom plate, a turning cover is arranged at the top end of the printing module, side plates are respectively fixed on two sides of the bottom plate, a motor is arranged on the right side of each side plate, and the turning cover is arranged on the bottom plate. A planetary reducer outer gear ring is arranged on the left side of the motor, and a rubber roller body is transversely installed in the bottom of the front end of the turning cover. According to the transmission structure for the narrow and long printer, the planetary speed reduction transmission assembly is arranged, the size is small, the transmission ratio is large, the structure on the narrow and long printer can be made compact through arrangement in the depth direction, and portability is not affected; the arrangement positions of the motor and the planetary reducer assembly can be very flexible, so that the space can be effectively utilized, and the problem that the occupied area of a transmission structure is large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a transmission structure used for narrow and long printers. Background Art

[0002] Portable printers have a small space and cannot be equipped with high-torque motors, while low-torque motors cannot meet the printing power requirements well, and often need to be reduced in speed to increase torque. Especially for wide-format portable printers, which are narrow and long, the torque required for printing is also greater, which means that the transmission ratio of the transmission mechanism is also greater, so the reduction box is also larger. The reduction gear set on traditional printers is arranged in a parallel axis flat layout, which occupies a large area and makes a lot of noise, and cannot meet the needs of narrow and long wide-format portable printers.

[0003] Now, a novel transmission structure for a narrow and long printer is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0004] The utility model aims to provide a transmission structure for a narrow and long printer, so as to solve the problem that the transmission structure mentioned in the background technology above occupies a large area.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission structure for a narrow and long printer, comprising a base plate, a printing module is arranged at the top of the base plate, and a flip cover is arranged at the top of the printing module, side plates are fixed on both sides of the base plate, a motor is arranged on the right side of the side plate, and an outer gear ring of a planetary reducer is arranged on the left side of the motor, a rubber roller body is horizontally installed inside the bottom of the front end of the flip cover, and a rubber roller gear is fixed on the left side of the outside of the rubber roller body, and a flat gear group is arranged on the left side of the side plate.

[0006] Preferably, the two sides of the rubber roller body are rotatably clamped on the two sides inside the flip cover, and the axis of the motor is parallel to the axis of the rubber roller body.

[0007] Preferably, a planet carrier is arranged inside the outer gear ring of the planetary reducer, and the planet carrier includes a planetary shaft, an output shaft, a support plate and a convex ring 2; a support plate is arranged inside the outer gear ring of the planetary reducer, and an output shaft is arranged on the left side of the support plate; a center hole is opened inside the right side of the output shaft, a convex ring 2 is fixed to the left side of the support plate, an output wheel is fixed to the end on the left side of the output shaft, three groups of planetary shafts are rotatably connected at equal intervals on the right side of the support plate, a shaft sleeve is arranged inside the left side of the outer gear ring of the planetary reducer, second screw through holes are respectively arranged inside the top and bottom ends of the left side of the outer gear ring of the planetary reducer, and the outside of the planetary shaft is installed and fixed with Planetary gear, a limit plate is provided on the right side of the outer gear ring of the planetary reducer, and a mounting hole 1 is penetrated inside the limit plate, a sun gear is installed and fixed on the output end of the motor, threaded holes are respectively provided at the top and bottom ends of the left side of the motor, a groove 1 is provided at the front end of the left side of the motor, a boss 1 is fixed at the front end of the right side of the limit plate, a convex ring 1 is fixed on the left side of the limit plate, and a boss 2 is fixed at the bottom end of the limit plate, the outside of the planetary gear is meshed and connected with the inner side of the outer gear ring of the planetary reducer, the output wheel is meshed with the flat gear set, the flat gear set is meshed with the rubber roller gear, and a first screw through hole is provided inside the side plate.

[0008] Preferably, a groove 2 is provided inside the top and bottom ends of the right side of the outer gear ring of the planetary reducer, a groove 3 is provided inside the top end of the left side of the outer gear ring of the planetary reducer, a boss 3 is fixed to the front end of the right side of the side plate, the boss 3 is plugged into and fits with the groove 3, a mounting hole 2 is provided at the middle position of the front end of the left side of the side plate, the outer circle of the sleeve is plugged and positioned inside the mounting hole 2, the top and bottom ends of the left side of the outer gear ring of the planetary reducer are respectively provided with a second screw through hole, a screw hole corresponding to the second screw through hole is provided on the motor, the output shaft is rotatably connected to the sleeve inside the left side of the outer gear ring of the planetary reducer, the mounting hole 1 is concentrically connected to the motor, and the boss 2 is plugged into and fits with the groove 2.

[0009] Preferably, the sun gear passes through the interior of the first mounting hole and meshes with the planetary gears.

[0010] Preferably, a dust cover is provided on the left side of the exterior of the side panel.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the transmission structure for a narrow and long printer not only realizes a small occupied area and a more compact structure, realizes sufficient lubrication and reduces the noise of the printer, but also realizes the convenience of dust prevention on the outside of the transmission structure;

[0012] (1) By providing a printing module, a bottom plate, a motor, an outer gear ring of a planetary reducer, a side plate, an output wheel, a rubber roller gear, a flip cover, a rubber roller body and a flat gear set, a planetary reduction transmission assembly is provided, which has a small volume and a large transmission ratio. The arrangement in the depth direction can well solve the problem of narrow and long machines, making the structure compact without affecting portability. The flat gear set connects the output wheel with the rubber roller gear, so that the position of the motor and the planetary reducer assembly can be very flexible, so that the space can be effectively utilized;

[0013] (2) By providing a planetary reducer outer gear ring, a planetary shaft, a planetary carrier, a planetary gear, a limit plate, a first screw through hole, a second mounting hole, a boss three, a second screw through hole, a sleeve, an output shaft, a support plate, a convex ring two, a convex ring one, a threaded hole, a sun gear, a boss two, a boss one, a center hole, a groove two, a groove one, a mounting hole one and a groove three, the motor and the planetary reducer assembly are fastened to the side plate from the outside of the side plate with screws, the positioning and fastening are simple and effective, the assembly efficiency is high, and the integrated sleeve of the planetary reducer outer gear ring can replace the bearing, and the planetary gear is provided with a center hole The planetary shaft is connected without bearings, which saves space and has good economy. The planetary reduction structure has large meshing stiffness, and the interior is a closed space, which can not only fully lubricate, but also the meshing noise is not easy to be transmitted, greatly reducing the running noise of the transmission structure, which meets the demand for low noise of portable printers. A convex ring 1 is provided on the inner side of the limit plate to limit the axial movement of the planetary carrier. It is set in a convex ring shape, which is beneficial to reduce the friction contact area during rotation. A convex ring 2 is provided on the side where the support plate in the planetary carrier fits with the outer gear ring of the planetary reducer, which is beneficial to reduce the friction contact area during rotation.

[0014] (3) By providing a side plate and a dust cover, when the transmission structure is in use, a dust cover is provided on the outside of the flat gear set and output wheel and other components on the left side of the side plate, which can reduce the leakage of lubricant inside the transmission structure and the intrusion of external dust into the transmission structure, thereby reducing the wear and jamming of the internal transmission gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the flip cover of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the bottom plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the planetary gear of the utility model.

[0019] In the figure: 1. printing module; 2. bottom plate; 3. motor; 4. outer gear ring of planetary reducer; 5. side plate; 6. output wheel; 7. rubber roller gear; 8. flip cover; 9. rubber roller body; 10. dust cover; 11. flat gear set; 12. planetary shaft; 13. planetary carrier; 14. planetary gear; 15. limit plate; 16. first screw hole; 17. mounting hole two; 18. boss three; 19. second screw hole; 20. bushing; 21. output shaft; 22. support plate; 23. convex ring two; 24. convex ring one; 25. threaded hole; 26. sun gear; 27. boss two; 28. boss one; 29. ​​center hole; 30. groove two; 31. groove one; 32. mounting hole one; 33. groove three. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Please refer to Figure 1-4 A transmission structure for a narrow and long printer includes a bottom plate 2, characterized in that: a printing module 1 is arranged at the top of the bottom plate 2, and a flip cover 8 is arranged at the top of the printing module 1, side plates 5 are fixed on both sides of the bottom plate 2, a motor 3 is arranged on the right side of the side plate 5, and a planetary reducer outer gear ring 4 is arranged on the left side of the motor 3, a rubber roller body 9 is transversely installed inside the bottom of the front end of the flip cover 8, and a rubber roller gear 7 is fixed on the left side of the outside of the rubber roller body 9, a flat gear set 11 is arranged on the left side of the side plate 5, and both sides of the rubber roller body 9 are rotated and stuck on both sides of the inside of the flip cover 8, and the axis of the motor 3 is parallel to the axis of the rubber roller body 9;

[0022] Specifically, Figure 1-Figure 4 As shown, by setting up a planetary reduction transmission component with a small size and a large transmission ratio, the arrangement in the depth direction can well solve the problem of narrow and long machines, making the structure compact without affecting portability. The flat gear set 11 connects the output wheel 6 with the rubber roller gear 7, so that the position of the motor 3 and the planetary reducer assembly can be very flexible, so that the space can be effectively utilized.

[0023] Embodiment 2: A planet carrier 13 is arranged inside the outer gear ring 4 of the planetary reducer, and the planet carrier 13 includes a planet shaft 12, an output shaft 21, a support plate 22 and a convex ring 23. A support plate 22 is arranged inside the outer gear ring 4 of the planetary reducer, and an output shaft 21 is arranged on the left side of the support plate 22. A center hole 29 is opened inside the right side of the output shaft 21, and a convex ring 23 is fixed on the left side of the support plate 22. An output wheel 6 is fixed to the end on the left side of the output shaft 21. Three groups of planet shafts 12 are rotatably connected at equal intervals on the right side of the support plate 22. A shaft sleeve 20 is arranged inside the left side of the outer gear ring 4 of the planetary reducer, and second screw holes 19 are respectively arranged inside the top and bottom ends of the left side of the outer gear ring 4 of the planetary reducer. The outer mounting of the planetary shaft 12 is fixed. A planetary gear 14 is fixed, a limit plate 15 is arranged on the right side of the outer gear ring 4 of the planetary reducer, and a mounting hole 32 is penetrated inside the limit plate 15, a sun gear 26 is fixedly installed on the output end of the motor 3, threaded holes 25 are respectively provided at the top and bottom ends of the left side of the motor 3, a groove 31 is provided at the front end of the left side of the motor 3, a boss 28 is fixed at the front end of the right side of the limit plate 15, a convex ring 24 is fixed on the left side of the limit plate 15, and a boss 27 is fixed at the bottom end of the limit plate 15, the outside of the planetary gear 14 is meshed and connected with the inside of the outer gear ring 4 of the planetary reducer, the output wheel 6 is meshed with the flat gear set 11, the flat gear set 11 is meshed and connected with the rubber roller gear 7, and a first screw through hole 16 is provided inside the side plate 5;

[0024] A groove 2 30 is provided inside the top and bottom ends of the right side of the planetary reducer outer gear ring 4, a groove 33 is provided inside the top end of the left side of the planetary reducer outer gear ring 4, a boss 3 18 is fixed to the front end of the right side of the side plate 5, the boss 3 18 is plugged into the groove 3 33, a mounting hole 2 17 is provided at the middle position of the left front end of the side plate 5, the outer circle of the sleeve 20 is plugged and positioned inside the mounting hole 2 17, the top and bottom ends of the left side of the planetary reducer outer gear ring 4 are respectively provided with a second screw through hole 19, the motor 3 is provided with a screw hole corresponding to the second screw through hole 19, the output shaft 21 is rotatably connected to the sleeve 20 inside the left side of the planetary reducer outer gear ring 4, the mounting hole 1 32 is concentrically connected to the motor 3, the boss 27 is plugged into the groove 2 30, the sun gear 26 passes through the inside of the mounting hole 1 32 and meshes with the planetary gear 14;

[0025] Specifically, Figure 1-Figure 4As shown, the motor 3 and the planetary reducer assembly are fastened to the side plate 5 with screws from the outside of the side plate 5. The positioning and fastening are simple and effective, and the assembly efficiency is high. Moreover, the integrated shaft sleeve 20 of the planetary reducer outer gear ring 4 can replace the bearing. The planetary gear 14 is provided with a center hole 29 and the planetary shaft 12 is sleeved without a bearing, which saves space and has good economy. The planetary reduction structure has a large meshing stiffness, and the interior is a closed space, which can not only be fully lubricated, but also the meshing noise is not easy to be transmitted, which greatly reduces the operating noise of the transmission structure and meets the demand for low noise of portable printers. A convex ring 1 24 is provided on the inner side of the limiting plate 15, which can limit the axial movement of the planetary carrier 13 and is set in a convex ring shape, which is beneficial to reducing the friction contact area during rotation. A convex ring 2 23 is provided on the side where the support plate 22 and the planetary reducer outer gear ring 4 are in contact with the planetary carrier 13, which is beneficial to reducing the friction contact area during rotation.

[0026] Embodiment 3: A dust cover 10 is provided on the left side of the outside of the side plate 5;

[0027] Specifically, Figure 1 and Figure 3 As shown, a dust cover 10 is provided on the outside of the flat gear set 11 and the output wheel 6 and other components on the left side of the side plate 5, which can reduce the leakage of lubricant inside the transmission structure and the invasion of external dust into the transmission structure, causing wear and jamming of the internal transmission gears.

[0028] Working principle: When the utility model is in use, by setting a planetary reduction transmission component, the volume is small, the transmission ratio is large, and the arrangement in the depth direction can well solve the problem of narrow and long machines, so that the structure can be compact without affecting portability. The flat gear set 11 connects the output wheel 6 with the rubber roller gear 7, so that the position of the motor 3 and the planetary reducer assembly can be very flexible, so that the space can be effectively utilized. The motor 3 and the planetary reducer assembly are fastened to the side plate 5 with screws from the outside of the side plate 5. The positioning and fastening are simple and effective. Moreover, the integrated shaft sleeve 20 of the planetary reducer outer gear ring 4 can replace the bearing, and the planetary gear 14 is provided with a center hole 29 and the planetary shaft 12 is sleeved without bearings, which saves space. The speed structure has a large meshing stiffness, and the interior is a closed space, which can not only be fully lubricated, but also the meshing noise is not easy to be transmitted, which meets the demand for low noise of portable printers. A convex ring 24 is provided on the inner side of the limit plate 15, which can limit the axial movement of the planetary carrier 13 and is set in a convex ring shape, which is beneficial to reduce the friction contact area during rotation. A convex ring 23 is provided on the side where the support plate 22 in the planetary carrier 13 and the outer gear ring 4 of the planetary reducer are in contact, which is beneficial to reduce the friction contact area during rotation. When the transmission structure is in use, a dust cover 10 is provided on the outside of the components such as the flat gear set 11 and the output wheel 6 on the left side of the side plate 5, which can reduce the leakage of lubricant inside the transmission structure and the invasion of external dust into the transmission structure.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A transmission structure for a narrow and long printer, comprising a bottom plate (2), characterized in that: A printing module (1) is arranged at the top of the bottom plate (2), and a flap (8) is arranged at the top of the printing module (1); side plates (5) are fixed to both sides of the bottom plate (2); a motor (3) is arranged on the right side of the side plate (5), and a planetary reducer outer gear ring (4) is arranged on the left side of the motor (3); a rubber roller body (9) is transversely installed inside the bottom of the front end of the flap (8), and a rubber roller gear (7) is fixed to the left side of the outside of the rubber roller body (9); and a flat gear set (11) is arranged on the left side of the side plate (5).

2. The transmission structure for a narrow and long printer according to claim 1, characterized in that: The two sides of the rubber roller body (9) are rotatably clamped on the two sides inside the flip cover (8), and the axis of the motor (3) is parallel to the axis of the rubber roller body (9).

3. The transmission structure for a narrow and long printer according to claim 1, characterized in that: A planet carrier (13) is arranged inside the outer gear ring (4) of the planetary reducer. The planet carrier (13) includes a planet shaft (12), an output shaft (21), a support plate (22) and a second convex ring (23). A support plate (22) is arranged inside the outer gear ring (4) of the planetary reducer. The output shaft (21) is arranged on the left side of the support plate (22). A center hole (29) is opened inside the right side of the output shaft (21). A second convex ring (23) is fixed on the left side of the support plate (22). An output wheel (6) is fixed at the end of the left side of the output shaft (21). Three groups of planet shafts (12) are rotatably connected at equal intervals on the right side of the support plate (22). A shaft sleeve (20) is arranged inside the left side of the outer gear ring (4) of the planetary reducer. Second screw holes (19) are respectively arranged inside the top and bottom ends of the left side of the outer gear ring (4) of the planetary reducer. A planet shaft (12) is fixed on the outside. The outer gear ring (4) of the planetary reducer is provided with a limit plate (15) on the right side thereof, and a mounting hole (32) is provided inside the limit plate (15), a sun gear (26) is fixedly mounted on the output end of the motor (3), the top and bottom ends of the left side of the motor (3) are respectively provided with threaded holes (25), the front end of the left side of the motor (3) is provided with a groove (31), and the front end of the right side of the limit plate (15) is fixed with a boss ( 28), a convex ring 1 (24) is fixed on the left side of the limit plate (15), a boss 2 (27) is fixed on the bottom end of the limit plate (15), the outside of the planetary gear (14) is meshed with the inside of the outer gear ring (4) of the planetary reducer, the output wheel (6) is meshed with the flattening gear set (11), the flattening gear set (11) is meshed with the rubber roller gear (7), and a first screw through hole (16) is opened inside the side plate (5).

4. The transmission structure for a narrow and long printer according to claim 3, characterized in that: A second groove (30) is provided at the top and bottom of the right side of the planetary reducer outer gear ring (4), and a third groove (33) is provided at the top of the left side of the planetary reducer outer gear ring (4). A third boss (18) is fixed at the front end of the right side of the side plate (5), and the third boss (18) and the third groove (33) are plugged in. A second mounting hole (17) is provided at the middle position of the left front end of the side plate (5), and the outer circle of the shaft sleeve (20) is plugged in and positioned in the second mounting hole (17). A second screw through hole (19) is provided at the top and bottom of the left side of the planetary reducer outer gear ring (4), respectively. A screw hole corresponding to the second screw through hole (19) is provided on the motor (3). The output shaft (21) is rotatably connected to the shaft sleeve (20) inside the left side of the planetary reducer outer gear ring (4). The first mounting hole (32) is concentrically connected to the motor (3), and the second boss (27) and the second groove (30) are plugged in.

5. The transmission structure for a narrow and long printer according to claim 3, characterized in that: The sun gear (26) passes through the interior of the first mounting hole (32) and meshes with the planetary gears (14).

6. The transmission structure for a narrow and long printer according to claim 1, characterized in that: A dust cover (10) is provided on the left side of the exterior of the side plate (5).

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