Transmission mechanism of printer fixing assembly

Abstract

The utility model belongs to the technical field of internal mechanical structures of printers, and particularly relates to a transmission mechanism of a fixing assembly of a printer, which comprises a fixing machine body, a rotating shaft I and a rotating shaft II are rotationally connected to the same side of the fixing machine body, and a positioning assembly, a gear I and a pressing piece are sequentially arranged on the rotating shaft I; the first gear is connected to the first rotating shaft in a limited mode through a positioning assembly and a pressing piece, the second rotating shaft is connected with a second gear, and the second gear is meshed with the first gear. According to the utility model, the effectiveness of gear transmission is ensured, and the service life of the gear I is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of internal mechanical structures of printers, in particular to a transmission mechanism of a fixing component of a printer. Background Art

[0002] With the rapid development of information technology and the widespread adoption of office automation, printers, as crucial information output devices, are experiencing continuous improvement in performance and technology. The fuser, a key component in printers, has also seen its transmission mechanism evolve from simple to complex, and from inefficient to highly efficient.

[0003] In modern office environments, the demand for efficient and fast printing is increasing. The transmission mechanism of the fixing assembly needs to be able to transmit power quickly and accurately to ensure smooth printing and improve printing efficiency.

[0004] However, most of the current transmission gears are mounted on a rotating shaft. A flat surface is set on the circumferential outer wall of the rotating shaft and is limited by the sleeve hole of the gear. A retaining spring is set at the outer end of the rotating shaft to prevent the gear from falling out. Such a structural setting makes it easy for the gear to slide along the axial direction of the rotating shaft and rub against the fixing body, resulting in abnormal noise and wear, resulting in uneven transmission and affecting the service life.

[0005] Therefore, it is necessary to provide a transmission mechanism for a printer fixing assembly to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission mechanism for a printer fixing assembly to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides a transmission mechanism of a printer fixing assembly, including a fixing machine body, wherein a rotating shaft 1 and a rotating shaft 2 are rotatably connected on the same side of the fixing machine body, a positioning assembly, a gear 1 and a clamping member are sequentially arranged on the rotating shaft 1, the gear 1 is connected to the rotating shaft 1 through the positioning assembly and the clamping member, the rotating shaft 2 is connected to the gear 2, and the gear 2 is engaged with the gear 1.

[0008] Preferably, the positioning assembly includes a positioning ring slidably sleeved on the rotating shaft 1, a plurality of key slots 1 are opened in the circumference of the rotating shaft 1, a key is slidably set in the key slot 1, the key slot 1 is set along the axial direction of the rotating shaft 1, the gear 1 and the positioning ring are both slidably sleeved on the key slot 1, the bottom end of the key slot 1 close to the fuser body is connected to a stopper, the stopper abuts against the side of the positioning ring close to the fuser body, and the side of the key slot 1 away from the fuser body is provided with an adjusting member, and the adjusting member is used to adjust the position of the positioning ring.

[0009] Preferably, the adjusting member includes a limit cover, a countersunk groove is provided on one side of the limit cover, and the limit cover is limitedly engaged with the rotating shaft through the countersunk groove, the key is connected to a screw rod at one end away from the fixing machine body, the limit cover is provided with a plurality of through holes, and the through holes are arranged corresponding to the screw rod, the screw rod passes through the through holes at one end away from the fixing machine body and is threadedly connected with a nut, and the clamping member is sleeved on the screw rod.

[0010] Preferably, the pressing member includes a pressing ring body, and the pressing ring body is threadedly connected to the rotating shaft one.

[0011] Preferably, a plurality of key slots 2 adapted to the key are provided on the hole wall of the gear 1, the key slots 2 are arranged corresponding to the key slot 1, and the gear 1 is limitedly matched with the rotating shaft 1 through the key slots 2, the key and the key slot 1.

[0012] Preferably, a plurality of key slots 2 adapted to the key are provided on the hole wall of the positioning ring, and the key slots 2 are arranged corresponding to the key slots 1.

[0013] Compared with the prior art, the present invention has the following advantages and technical effects:

[0014] The utility model provides a transmission mechanism of a printer fixing assembly, which can adjust the position of gear one on shaft one through a provided positioning assembly, and press gear one onto the positioning assembly through a pressing member, so that gear one and shaft one are limitedly matched, thereby achieving effective transmission and preventing gear one from moving axially along shaft one, thereby avoiding the gear from scratching the fixing machine body, and at the same time ensuring the reliability of the engagement between gear one and gear two.

[0015] The utility model ensures the effectiveness of the gear transmission and simultaneously ensures the service life of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work:

[0017] Figure 1 This is a partial schematic diagram of a transmission mechanism of a printer fixing assembly proposed by the present invention;

[0018] Figure 2 This is a schematic structural diagram of the limit cover in the utility model;

[0019] Among them: 1. Fuser body; 2. Rotating shaft 1; 3. Keyway 1; 4. Key; 5. Stopper; 6. Screw; 7. Limit cover; 8. Nut; 9. Clamping ring; 10. Gear 1; 11. Keyway 2; 12. Countersunk groove; 13. Through hole; 14. Positioning ring; 15. Gear 2; 16. Rotating shaft 2. DETAILED DESCRIPTION

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

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Reference Figures 1 to 2 As shown, the utility model provides a transmission mechanism of a printer fixing assembly, including a fixing machine body 1, and a rotating shaft 2 and a rotating shaft 2 16 are rotatably connected on the same side of the fixing machine body 1. A positioning assembly, a gear 10 and a pressing member are sequentially provided on the rotating shaft 2. The gear 10 is connected to the rotating shaft 2 through the positioning assembly and the pressing member. The rotating shaft 2 16 is connected to the gear 2 15, and the gear 2 15 is engaged with the gear 10.

[0023] The position of gear 10 on shaft 2 can be adjusted by the provided positioning assembly, and gear 10 is pressed against the positioning assembly by the pressing member, so that gear 10 and shaft 2 are limitedly matched, thereby achieving effective transmission and preventing gear 10 from moving along the axial direction of shaft 2, thereby avoiding gear 10 from scratching against the fuser body 1, and at the same time ensuring the reliability of the engagement between gear 10 and gear 2 15.

[0024] The utility model ensures the effectiveness of the gear transmission and at the same time ensures the service life of the gear 10.

[0025] Furthermore, the positioning assembly includes a positioning ring 14 slidably sleeved on the rotating shaft 2, a plurality of key slots 3 are opened in the circumference of the rotating shaft 2, a key 4 is slidably arranged in the key slot 3, the key slot 3 is arranged along the axial direction of the rotating shaft 2, the gear 10 and the positioning ring 14 are both slidably sleeved on the key slot 3, the bottom end of the key slot 3 close to the fuser body 1 is connected to a stopper 5, the stopper 5 abuts against the side of the positioning ring 14 close to the fuser body 1, and an adjusting member is provided on the side of the key slot 3 away from the fuser body 1, and the adjusting member is used to adjust the position of the positioning ring 14.

[0026] The key 4 is driven to slide in the keyway 3 by the provided adjusting member, and the positioning ring 14 is driven to move with the key 4 by the provided stopper 5, thereby adjusting the position of the positioning ring 14 on the rotating shaft 2, and then the gear 10 is pressed against the positioning ring 14 by the pressing member, so that the gear 10 and the rotating shaft 2 are limitedly matched to ensure the effectiveness of the transmission.

[0027] Furthermore, the adjusting part includes a limit cover 7, a countersunk groove 12 is provided on one side of the limit cover 7, and the limit cover 7 is limited by the countersunk groove 12 and cooperates with the rotating shaft 2. The end of the key 4 away from the fuser body 1 is connected to the screw rod 6, and the limit cover 7 is provided with a plurality of through holes 13, and the through holes 13 are arranged corresponding to the screw rod 6. The end of the screw rod 6 away from the fuser body 1 passes through the through holes 13 and is threadedly connected to the nut 8, and the clamping piece is sleeved on the screw rod 6.

[0028] By rotating the nut 8, the screw rod 6 and the key 4 are driven to slide in the keyway 3, and the positioning ring 14 is driven to move with the key 4 through the set block 5. The position of the positioning ring 14 on the rotating shaft 2 is adjusted, and the gear 10 and the rotating shaft 2 are limited by rotating the clamping piece.

[0029] Furthermore, the pressing member includes a pressing ring 9, which is threadedly connected to the rotating shaft 2.

[0030] The gear 10 is pressed against the positioning ring 14 by rotating the pressing ring 9.

[0031] Furthermore, in order to improve the reliability of the transmission between gear 10 and shaft 2, several key slots 11 that are compatible with key 4 are opened on the hole wall. Key slot 2 11 is arranged corresponding to key slot 1 3. Gear 10 is limitedly matched with shaft 2 through key slot 2 11, key 4 and key slot 3.

[0032] In this embodiment, the number of key slots 3 is two.

[0033] Furthermore, in order to ensure the smooth sliding of the positioning ring 14 on the rotating shaft 2, a plurality of key grooves 11 adapted to the key 4 are opened on the hole wall of the positioning ring 14, and the key grooves 11 are correspondingly arranged with the key grooves 3.

[0034] The transmission mechanism of the printer fixing assembly provided by the present invention has the following working principles: during installation, first place the two keys 4 in the key slots 13 on the rotating shaft 12, align the key slot 2 11 on the positioning ring 14 with the key 4 and put it on the rotating shaft 12 and the key 4, align the key slot 2 11 on the gear 10 with the key 4 and put it on the rotating shaft 2 and the key 4, screw the clamping ring body 9 onto the rotating shaft 12, and then rotate the nut 8 to drive the screw rod 6 and the key 4 to slide in the key slot 3, and drive the positioning ring 14 to move with the key 4 through the provided stopper 5, adjust the position of the positioning ring 14 on the rotating shaft 2, continue to rotate the clamping ring body 9 to tighten the gear 10, and complete the installation of the gear 10. During installation, it is necessary to ensure that the gear 10 and the gear 2 15 are effectively meshed. In order to improve the smoothness of the movement of the positioning ring 14, lubricating oil can be applied to the key slot 2 11 and the key slot 3.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0036] The above are only preferred specific implementation methods of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in this application should be covered by the scope of protection of the present application.

Claims

1. A transmission mechanism of a printer fixing assembly, comprising a fixing unit body (1), characterized in that: The fixing machine body (1) is rotatably connected to a rotating shaft 1 (2) and a rotating shaft 2 (16) on the same side. The rotating shaft 1 (2) is provided with a positioning assembly, a gear 1 (10) and a pressing member in sequence. The gear 1 (10) is connected to the rotating shaft 1 (2) through the positioning assembly and the pressing member. The rotating shaft 2 (16) is connected to a gear 2 (15), and the gear 2 (15) is meshed with the gear 1 (10).

2. The transmission mechanism of the printer fixing assembly according to claim 1, characterized in that: The positioning assembly includes a positioning ring (14) slidably sleeved on the rotating shaft (2), a plurality of key slots (3) are opened in the circumference of the rotating shaft (2), a key (4) is slidably arranged in the key slot (3), the key slot (3) is arranged along the axial direction of the rotating shaft (2), the gear (10) and the positioning ring (14) are both slidably sleeved on the key slot (3), the bottom end of the key slot (3) close to the fixing machine body (1) is connected to a stopper (5), the stopper (5) is in contact with the side of the positioning ring (14) close to the fixing machine body (1), and the side of the key slot (3) away from the fixing machine body (1) is provided with an adjusting member, and the adjusting member is used to adjust the position of the positioning ring (14).

3. The transmission mechanism of the printer fixing assembly according to claim 2, characterized in that: The regulating member comprises a limit cover (7), a countersunk groove (12) is provided on one side of the limit cover (7), the limit cover (7) is limitedly matched with the rotating shaft (2) through the countersunk groove (12), the key (4) is connected to a screw rod (6) at one end away from the fixing machine body (1), the limit cover (7) is provided with a plurality of through holes (13), the through holes (13) are arranged corresponding to the screw rod (6), the end of the screw rod (6) away from the fixing machine body (1) passes through the through holes (13) and is threadedly connected to a nut (8), and the pressing member is sleeved on the screw rod (6).

4. The transmission mechanism of the printer fixing assembly according to claim 1, characterized in that: The pressing member comprises a pressing ring body (9), and the pressing ring body (9) is threadedly connected to the rotating shaft (2).

5. The transmission mechanism of the printer fixing assembly according to claim 2, characterized in that: A plurality of key slots 2 (11) adapted to the key (4) are provided on the hole wall of the gear 1 (10), and the key slots 2 (11) are arranged corresponding to the key slot 1 (3). The gear 1 (10) is limitedly engaged with the rotating shaft 1 (2) through the key slots 2 (11), the key (4), and the key slot 1 (3).

6. The transmission mechanism of the printer fixing assembly according to claim 2, characterized in that: A plurality of second key grooves (11) adapted to the keys (4) are provided on the hole wall of the positioning ring (14), and the second key grooves (11) are arranged corresponding to the first key groove (3).

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