CN214042013U

CN214042013U - Transmission assembly of photosensitive drum

Info

Publication number: CN214042013U
Application number: CN202023331391.5U
Authority: CN
Inventors: 林飞
Original assignee: Zhongshan Hansen Printing Technology Co ltd
Current assignee: Zhongshan Hansen Printing Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-24
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a transmission assembly of sensitization drum, including supplying fixed connection in the gear of sensitization drum tip and the driving head of acceptable rotary driving power, its characterized in that: the gear with the drive head is connected for integrated into one piece, gear one side is extended with the central axis and is had the deformable snap ring that supports and holds the joint with the drum core inner tube. The utility model discloses simple structure, the gear and the first integrated into one piece structure of drive of sensitization drum, the assembly process that has significantly reduced, and the cost is reduced by a wide margin, and the snap ring that the rethread extends cut straightly to support and hold the joint in drum core inner tube, realize with the assembly of drum core, reach the demand of convenient rapid Assembly production.

Description

Transmission assembly of photosensitive drum

Technical Field

The utility model relates to a transmission assembly of sensitization drum.

Background

A photosensitive drum, which is one of the most important members in an electrophotographic image forming apparatus (ep (electrophotographic) image forming apparatus), is provided in a toner cartridge, and electrically conducts and adsorbs toner by a photosensitive action to develop printed contents. The photosensitive drum mainly comprises a photosensitive roller and a transmission component arranged at one section of the photosensitive roller, and the transmission component is connected with a driving mechanism arranged in a shell of the electrophotographic imaging equipment and used for transmitting the rotation kinetic energy of the driving mechanism to the photosensitive roller so as to enable the photosensitive roller to synchronously rotate along with the photosensitive roller. The existing photosensitive drum transmission assembly is generally split, complex in assembly and high in cost.

SUMMERY OF THE UTILITY MODEL

To the defect that above-mentioned prior art exists, the to-be-solved technical problem of the utility model is: an integrated photosensitive drum transmission assembly is provided.

The utility model provides a transmission assembly of sensitization drum, is including supplying fixed connection in the gear of sensitization drum tip and the driving head of acceptable rotary driving power, the gear with the driving head is connected for integrated into one piece, gear one side extends with the central axis has and supports the deformable snap ring that holds the joint with the drum core inner tube.

In one embodiment, the gear is provided with a first inner cavity which is opened towards one side of the clamping ring, and the driving head is provided with a second inner cavity which is communicated with the first inner cavity.

In one embodiment, the first inner cavity and the second inner cavity are combined to form a stepped cylindrical cavity with the diameter gradually decreasing from the opening end to the inner diameter.

In one embodiment, an inner ring is arranged in the inner cavity I, and a plurality of first reinforcing ribs are circumferentially connected between the outer wall of the inner ring and the side wall of the inner cavity I at intervals.

In one embodiment, the inner ring is disposed concentrically with the lumen.

In one embodiment, a second reinforcing rib is connected to the inner wall of the second inner cavity.

In one embodiment, the outer wall periphery of the clamping ring at the opening end is provided with a guide inclined surface.

In one embodiment, a plurality of grooves are uniformly distributed on the outer wall of the clamping ring along the circumference, so that a plurality of bulges are formed on the outer wall of the clamping ring.

In one embodiment, the gear and the driving head are integrally formed by injection molding.

To sum up, the utility model discloses for its beneficial effect of prior art is:

the utility model discloses simple structure, the gear and the first integrated into one piece structure of drive of sensitization drum, the assembly process that has significantly reduced, and the cost is reduced by a wide margin, and the snap ring that the rethread extends cut straightly to support and hold the joint in drum core inner tube, realize with the assembly of drum core, reach the demand of convenient rapid Assembly production.

Drawings

Fig. 1 is a schematic perspective view of a transmission assembly of a photosensitive drum according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a transmission assembly of a photosensitive drum according to an embodiment of the present invention.

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:

as shown in fig. 1 to 2, the embodiment of the present invention preferably provides a transmission assembly of a photosensitive drum, which includes a gear 1 for fixedly connecting to the end of the photosensitive drum and a driving head 2 capable of receiving rotary driving force, wherein the gear 1 is connected to the driving head 2 by an integral forming, and a deformable snap ring 3 for abutting against the inner cylinder of the drum core is extended from one side of the gear 1 and the central axis. The utility model discloses a drum core, including drum core, gear 1, drive head 2, ring gear, ring gear, ring gear, ring gear, and ring gear, ring gear, ring, and ring, ring gear, ring gear, and ring gear.

The gear 1 is provided with a first inner cavity 4 which is opened towards one side of the direction of the clamping ring 3, and the driving head 2 is provided with a second inner cavity 5 communicated with the first inner cavity 4. Specifically, through inner chamber one 4 and inner chamber two 5 with the purpose that realizes stealing the material and economize the material, and can guarantee that the structural soundness corresponds when reducing the drive head 2 and the integrative injection moulding's of gear 1 wall thickness to when avoiding thickness great, its surface cooling rate is faster than the central part, consequently, along with the refrigerated process, the plastic resin of central part contracts the limit and expands to the surface, makes the central part produce and fills inadequately, thereby produces vacuum bubble and influences the quality.

The first inner cavity 4 and the second inner cavity 5 are combined to form a stepped cylindrical cavity with gradually reduced diameter from the opening end to the inner part. And the core is pulled through the formed stepped cylindrical cavity so as to form the integrally formed drawing die.

An inner ring 6 is arranged in the inner cavity I4, and a plurality of first reinforcing ribs 7 are circumferentially connected between the outer wall of the inner ring 6 and the side wall of the inner cavity I4 at intervals. The firmness of the structure is increased by the first reinforcing rib 7.

The inner ring 6 and the inner cavity I4 are arranged on the same central axis.

And the inner wall of the second inner cavity 5 is connected with a second reinforcing rib 8. And the second reinforcing rib 8 is used for increasing the structural firmness.

The clamping ring 3 is provided with a guide inclined plane on the peripheral surface of the outer wall of the opening end. The clamping ring 3 is deformed to be abutted and clamped on the drum core inner cylinder through the guide inclined surface.

The outer wall of the snap ring 3 is uniformly provided with a plurality of grooves 9 along the circumference, so that a plurality of bulges are formed on the outer wall of the snap ring 3. Through the formed plurality of bulges, the contact tight fit with the drum core inner barrel is realized, and meanwhile, the drum core inner barrel is prevented from being damaged when the friction force of the larger contact area of the drum core inner barrel and the drum core inner barrel is larger.

The gear 1 and the driving head 2 are integrally formed by injection molding.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only illustrative of the principles of the present invention, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and changes fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transmission assembly of sensitization drum, includes gear (1) and the drive head (2) of acceptable rotational drive power that supply fixed connection to sensitization drum tip, its characterized in that: gear (1) with driving head (2) are connected for integrated into one piece, gear (1) one side is extended with the central axis and is had and supports deformable snap ring (3) that holds the joint with the drum core inner tube.

2. The drive assembly of a photosensitive drum according to claim 1, wherein: the gear (1) is provided with a first inner cavity (4) with an opening at one side in the direction of the snap ring (3), and the driving head (2) is provided with a second inner cavity (5) communicated with the first inner cavity (4).

3. The drive assembly of a photosensitive drum according to claim 2, wherein: the first inner cavity (4) and the second inner cavity (5) are combined to form a stepped cylindrical cavity with gradually reduced inner diameter from the opening end to the inner end.

4. The driving unit of a photosensitive drum according to claim 2 or 3, wherein: an inner ring (6) is arranged in the inner cavity I (4), and a plurality of first reinforcing ribs (7) are circumferentially connected between the outer wall of the inner ring (6) and the side wall of the inner cavity I (4) at intervals.

5. The drive assembly of a photosensitive drum according to claim 4, wherein: the inner ring (6) and the inner cavity I (4) are arranged on the same central axis.

6. The driving unit of a photosensitive drum according to claim 2 or 3, wherein: and the inner wall of the inner cavity II (5) is connected with a reinforcing rib II (8).

7. The drive assembly of a photosensitive drum according to claim 1, wherein: the clamping ring (3) is arranged on the peripheral surface of the outer wall of the opening end and is provided with a guide inclined surface.

8. The drive assembly of a photosensitive drum according to claim 1, wherein: the outer wall of the clamping ring (3) is uniformly provided with a plurality of grooves (9) along the circumference, so that a plurality of bulges are formed on the outer wall of the clamping ring (3).

9. The drive assembly of a photosensitive drum according to claim 1, wherein: the gear (1) and the driving head (2) are integrally formed by injection molding.