A linking gear base of a printing machine bottom pressure printing shaft and a conveying air box

Abstract

The utility model discloses a kind of linkage transmission gear seat of printing machine bottom pressure printing shaft and conveying air box, comprising: mounting seat, the mounting seat is provided with mounting hole, the mounting seat is provided with the fixed shaft that can be passed and set mounting hole, the fixed shaft is connected with the lock nut that can be locked on mounting seat, the fixed shaft is also provided with the transmission gear that can rotate relative to it, the transmission gear is provided with the connection position that can be connected and fixed with external component, the mounting seat includes mounting seat body, and the mounting seat body both ends are provided with the first support arm and second support arm that extend outward, the first support arm is provided with the containing groove that can accommodate transmission gear between second support arm, the utility model provides a kind of linkage transmission gear seat of printing machine bottom pressure printing shaft and conveying air box, which can make transmission gear installation stable.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a connecting transmission gear seat for the bottom printing shaft and the transmission air box of a printing press. Background Technology

[0002] In the field of printing machinery, the bottom printing shaft gear seat is a key component for transmitting power and ensuring motion accuracy. Traditional bottom printing shaft gear seats are usually installed by setting a mounting ring on the transmission gear. In actual operation, due to the periodic load and impact generated by gear meshing, this support structure is prone to vibration or displacement, causing changes in the position of the transmission gear. This is directly reflected in the printed matter, causing quality problems such as misregistration and blurred dots, making it difficult to meet the process requirements of high-precision printing. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of the prior art and provide a connecting transmission gear seat for the printing press bottom impression shaft and the transmission air box that enables the transmission gear to be installed securely.

[0004] To achieve the above objectives, the present invention adopts the following solution:

[0005] A connecting transmission gear seat for a printing press bottom impression shaft and a transmission air box includes: a mounting base, wherein the mounting base is provided with a mounting hole, the mounting base is provided with a fixed shaft that can pass through the mounting hole, the fixed shaft is connected with a lock nut that can lock it onto the mounting base, the fixed shaft is also provided with a transmission gear that can rotate relative to it, the transmission gear is provided with a connection position that can be connected and fixed to an external component, the mounting base includes a mounting base body, and the mounting base body is provided with a first support arm and a second support arm extending outward at both ends, and a receiving groove that can accommodate the transmission gear is provided between the first support arm and the second support arm.

[0006] Multiple bearings are provided between the transmission gear and the fixed shaft. The transmission gear is provided with a receiving groove that can accommodate the multiple bearings. When the transmission gear is installed on the multiple bearings, the transmission gear can cover the outside of the multiple bearings.

[0007] The transmission gear includes a transmission gear body, and a plurality of protruding protrusions are provided on the back side of the transmission gear body. The plurality of protrusions are spaced apart so that the gap between the plurality of protrusions forms the connection position.

[0008] The transmission gear includes four protrusions, and the connection position is a cross-shaped connection groove.

[0009] The first support arm includes a first connecting plate connected to the mounting base body and a first fixing plate connected to the other end of the first connecting plate. A first reinforcing rib extending from the first fixing plate to the first connecting plate is provided between the first fixing plate and the first connecting plate. The second support arm includes a second connecting plate connected to the mounting base body and a second fixing plate connected to the other end of the second connecting plate. A second reinforcing rib extending from the second fixing plate to the second connecting plate is provided between the second fixing plate and the second connecting plate.

[0010] The top of the first connecting plate is provided with a horizontally extending flange, and the connection between the mounting base body and the second connecting plate is provided with a recessed notch.

[0011] The mounting base body is provided with multiple arc-shaped grooves.

[0012] The fixed shaft is also provided with a backstop plate, which is located between the lock nut and the mounting base body.

[0013] A positioning ring is also provided between the bearing and the mounting base body on the side near the mounting base body.

[0014] The transmission gear is a one-piece molded structure.

[0015] Compared with existing technologies, the present invention has the following advantages: The mounting base body of the present invention has a first support arm and a second support arm extending outward at both ends, and a receiving groove is formed between the first support arm and the second support arm. The first support arm, the second support arm and the receiving groove cooperate to form an embracing structure, which encloses the transmission gear and provides it with stable support, effectively resisting the jumping and swaying of the transmission gear 4 during the transmission process, making the position of the transmission gear more accurate and stable when meshing with external components, and reducing the transmission error caused by the displacement of the transmission gear. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box of this utility model;

[0017] Figure 2 This is the second schematic diagram of the connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box of the present invention.

[0019] Figure 4 This is a cross-sectional view of the connecting gear seat of the printing press bottom impression shaft and the conveying air box of the present invention. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to embodiments:

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] like Figures 1 to 4 As shown, a connecting transmission gear seat for a printing press bottom impression shaft and a transmission air box includes: a mounting base 1, wherein the mounting base 1 is provided with a mounting hole 11, a fixed shaft 2 that can pass through the mounting hole 11 is provided on the mounting base 1, a lock nut 3 that can lock the fixed shaft 2 onto the mounting base 1 is connected to the fixed shaft 2, and a transmission gear 4 that can rotate relative to it is also provided on the fixed shaft 2, and a connection position 41 that can be connected and fixed to an external component is provided on the transmission gear 4. The mounting base 1 includes a mounting base body 12, and a first support arm 13 and a second support arm 14 extending outward are provided at both ends of the mounting base body 12, and a receiving groove 15 that can accommodate the transmission gear 4 is provided between the first support arm 13 and the second support arm 14.

[0023] The mounting base body 12 of this utility model has outwardly extending first support arm 13 and second support arm 14 at both ends. A receiving groove 15 is formed between the first support arm 13 and the second support arm 14. The first support arm 13, the second support arm 14 and the receiving groove 15 cooperate to form an "embracing" structure, which encloses the transmission gear 4 and provides it with stable support. This effectively resists the jumping and swaying of the transmission gear 4 during transmission, making the position of the transmission gear 4 more accurate and stable when meshing with external components, and reducing the transmission error caused by the displacement of the transmission gear 4.

[0024] Multiple bearings 5 ​​are provided between the transmission gear 4 and the fixed shaft 2. The transmission gear 4 is provided with receiving grooves 42 that can accommodate the multiple bearings 5, and when the transmission gear 4 is installed on the multiple bearings 5, the transmission gear 4 can cover the outside of the multiple bearings 5. The arrangement of multiple bearings 5 ​​facilitates the rotation of the transmission gear 4. When the transmission gear 4 is installed in place, the transmission gear 4 positions the multiple bearings 5 ​​through the receiving grooves 42 and covers the outside of the multiple bearings 5. This makes the connection between the transmission gear 4 and the multiple bearings 5 ​​more compact, making full use of space, reducing the volume of the transmission gear 4, and making the entire structure more compact. The support of multiple bearings 5 ​​makes the rotation of the transmission gear 4 more stable and smooth, greatly reducing vibration and noise during operation, and reducing wear between the multiple bearings 5 ​​and the transmission gear 4.

[0025] The transmission gear 4 includes a transmission gear body 43. The back side of the transmission gear body 43 is provided with multiple protruding protrusions 431. These protrusions 431 are spaced apart, and the clearance fit between them forms the connection position 41. When connecting to an external rotating shaft or roller shaft, the working surfaces on both sides of these protrusions 431 can withstand pressure, enabling efficient and reliable torque transmission.

[0026] The transmission gear 4 includes four protrusions 431, and the connection position 41 is a cross-shaped connection groove.

[0027] The four protrusions 431 are symmetrically distributed in a cross shape, so that the torque from the transmission gear body 43 can be evenly distributed to the four identical protrusions 431, making the transmission smoother.

[0028] The first support arm 13 includes a first connecting plate 131 connected to the mounting base body 12 and a first fixing plate 132 connected to the other end of the first connecting plate 131. A first reinforcing rib 133 extending from the first fixing plate 132 to the first connecting plate 131 is provided between the first fixing plate 132 and the first connecting plate 131. The second support arm 14 includes a second connecting plate 141 connected to the mounting base body 12 and a second fixing plate 142 connected to the other end of the second connecting plate 141. A second reinforcing rib 143 extending from the second fixing plate 142 to the second connecting plate 141 is provided between the second fixing plate 142 and the second connecting plate 141. The first reinforcing rib 133 enhances the stability of the first fixing plate 132 and the first connecting plate 131, and the second reinforcing rib 143 enhances the stability of the second fixing plate 142 and the second connecting plate 141, preventing deformation and providing stable support.

[0029] The top of the first connecting plate 131 is provided with a laterally extending retaining edge 1311, and the connection between the mounting base body 12 and the second connecting plate 141 is provided with a recessed notch 16. The retaining edge 1311 extends laterally, forming an extremely narrow gap with the side end face of the transmission gear 4. This structure can effectively prevent lubricating oil or dust and impurities from the top or side of the equipment from entering the lower receiving groove 15 and bearing 5 directly and extensively, thus affecting the transmission of the transmission gear 4. The notch 16 facilitates observation of the transmission gear 4, making subsequent maintenance and care easier.

[0030] The mounting base body 12 is provided with multiple arc-shaped grooves 121, which removes excess material and effectively reduces the weight of the entire mounting base 1, while also providing sufficient space to observe the transmission gear 4 from the front.

[0031] The fixed shaft 2 is also provided with a backstop plate 6, which is located between the lock nut 3 and the mounting base body 12. The backstop plate 6 is pressed between the lock nut 3 and the mounting base body 12, so even if the equipment operates in a long-term, severe vibration environment, the lock nut 3 cannot rotate spontaneously in the loosening direction, thus avoiding the problem of the lock nut 3 self-release.

[0032] A positioning ring 7 is also provided between the bearing 5 and the mounting base body 12 on the side near the mounting base body 12. The thickness of the positioning ring 7 determines the axial position of the bearing 5 on the fixed shaft 2. By selecting positioning rings 7 of different thicknesses, the position of the bearing 5 and the transmission gear 4 can be precisely controlled, facilitating the installation of the transmission gear 4. This utility model of a transmission gear seat is generally used in the bottom printing shaft transmission of the transmission air box of a printing press. Of course, it can also be used in other transmission components.

[0033] The transmission gear 4 is a one-piece molded structure, which is convenient for processing and production, and one-piece molding is easier.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A connecting transmission gear seat for the bottom impression shaft and transmission air box of a printing press, characterized in that, include: Mounting base (1), the mounting base (1) is provided with mounting hole (11), the mounting base (1) is provided with fixed shaft (2) that can pass through mounting hole (11), the fixed shaft (2) is connected with lock nut (3) that can lock it on mounting base (1), the fixed shaft (2) is also provided with transmission gear (4) that can rotate relative to it, the transmission gear (4) is provided with connection position (41) that can be fixed to external components, the mounting base (1) includes mounting base body (12), and the mounting base body (12) is provided with a first support arm (13) and a second support arm (14) extending outward at both ends, and a receiving groove (15) that can accommodate transmission gear (4) is provided between the first support arm (13) and the second support arm (14).

2. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, characterized in that, Multiple bearings (5) are provided between the transmission gear (4) and the fixed shaft (2). The transmission gear (4) is provided with a receiving groove (42) that can accommodate multiple bearings (5). When the transmission gear (4) is installed on multiple bearings (5), the transmission gear (4) can cover the outside of multiple bearings (5).

3. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, characterized in that, The transmission gear (4) includes a transmission gear body (43). The back side of the transmission gear body (43) is provided with a plurality of protruding protrusions (431). The plurality of protrusions (431) are spaced apart so that the gap between the plurality of protrusions (431) forms the connection position (41).

4. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 3, characterized in that, The transmission gear (4) includes four protrusions (431), and the connection position (41) is a cross-shaped connection groove.

5. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, characterized in that, The first support arm (13) includes a first connecting plate (131) connected to the mounting base body (12) and a first fixing plate (132) connected to the other end of the first connecting plate (131). A first reinforcing rib (133) extending from the first fixing plate (132) to the first connecting plate (131) is provided between the first fixing plate (132) and the first connecting plate (131). The second support arm (14) includes a second connecting plate (141) connected to the mounting base body (12) and a second fixing plate (142) connected to the other end of the second connecting plate (141). A second reinforcing rib (143) extending from the second fixing plate (142) to the second connecting plate (141) is provided between the second fixing plate (142) and the second connecting plate (141).

6. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 5, characterized in that, The top of the first connecting plate (131) is provided with a horizontally extending flange (1311), and the connection between the mounting base body (12) and the second connecting plate (141) is provided with a recessed notch (16).

7. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, characterized in that, The mounting base body (12) is provided with multiple arc-shaped grooves (121).

8. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, characterized in that, The fixed shaft (2) is also provided with a backstop plate (6), which is located between the lock nut (3) and the mounting base body (12).

9. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 2, characterized in that, A positioning ring (7) is also provided between the bearing (5) near the mounting body (12) and the mounting body (12).

10. The connecting transmission gear seat of the printing press bottom impression shaft and the transmission air box according to claim 1, 3, 4, or 9, characterized in that, The transmission gear (4) is an integrally formed structure.

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