CN215642237U - Transmission device for selenium drum of copying machine - Google Patents

Abstract

The utility model relates to the technical field of selenium drums, in particular to a transmission device for a selenium drum of a copying machine; the lateral wall of main shaft is provided with the mounting hole, wear-resisting piece is dismantled with the main shaft and is connected, and be located the inside of mounting hole, the lateral wall of main shaft is provided with the movable groove, movable groove and mounting hole intercommunication, snap ring and main shaft swing joint, and be located the inside of movable groove, the top of wear-resisting piece is provided with first switching hole, the top of snap ring is provided with the second switching hole, pass the transmission shaft after the snap ring, it is fixed with the main shaft to pass wear-resisting piece again, replace the wearing and tearing of main shaft with wear-resisting piece, take off the bayonet lock on the snap ring, can extract the main shaft.

Description

Transmission device for selenium drum of copying machine

Technical Field

The utility model relates to the technical field of selenium drums, in particular to a transmission device for a selenium drum of a copying machine.

Background

A toner cartridge, also known as a photosensitive drum, is generally composed of a base substrate made of aluminum, and a photosensitive material coated on the base substrate. In laser printers, more than 70% of the image forming components are concentrated in the cartridge, and the quality of printing is actually determined to a large extent by the cartridge. The cartridge determines not only the quality of the print, but also the amount of money the user spends during use.

The connection of the existing selenium drum transmission shaft is hinged by a pin shaft to realize flexible rotation, is not easy to install and disassemble and is greatly abraded.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a transmission device for a selenium drum of a copying machine, and aims to solve the technical problems that in the prior art, the connection part of a selenium drum transmission shaft is hinged by a pin shaft to realize flexible rotation, the selenium drum transmission shaft is not easy to mount and dismount, and the selenium drum transmission shaft is large in abrasion.

In order to achieve the purpose, the utility model provides a transmission device for a selenium drum of a copying machine, which comprises a main shaft, a wear-resisting block and a clamping ring, wherein the outer side wall of the main shaft is provided with a mounting hole, the wear-resisting block is detachably connected with the main shaft and is positioned inside the mounting hole, the outer side wall of the main shaft is provided with a movable groove, the movable groove is communicated with the mounting hole, the clamping ring is movably connected with the main shaft and is positioned inside the movable groove, the top end of the wear-resisting block is provided with a first switching hole, and the top end of the clamping ring is provided with a second switching hole.

And after the transmission shaft penetrates through the clamping ring, the transmission shaft penetrates through the wear-resistant block to be fixed with the main shaft, the wear-resistant block is used for replacing the wear of the main shaft, and the clamping pin on the clamping ring is taken down, so that the main shaft can be pulled out.

The outer side wall of the main shaft is further provided with a plurality of clamping grooves, and each clamping groove surrounds the mounting hole and is evenly arranged at intervals.

The clamping grooves are used for embedding the wear-resistant blocks.

The wear-resistant block comprises a cylinder and a plurality of clamping plates, the clamping plates are fixedly connected with the cylinder and evenly arranged on the outer side wall of the cylinder at intervals, and each clamping plate is arranged in the corresponding clamping groove.

The clamping grooves are embedded with the clamping plates, so that the clamping grooves cannot be separated from the main shaft.

The wear-resistant block further comprises a wear-resistant coating, and the wear-resistant coating is arranged on the inner side wall of the first transfer hole.

The wear-resistant coating is utilized to protect the wear-resistant block, and the service life of the wear-resistant block is prolonged.

The clamping ring comprises a limiting ring and an external connecting ring, the limiting ring is movably connected with the main shaft and is located in the clamping groove, the external connecting ring is fixedly connected with the limiting ring and is located on the outer side of the limiting ring, and the external connecting ring and the limiting ring are provided with the second switching hole in a penetrating mode.

And rotating the limiting ring along the movable groove, aligning the second switching hole with the first switching hole, and installing the transmission shaft on the main shaft.

The clamping ring further comprises an elastic layer, and the elastic layer is fixedly connected with the limiting ring and is located on the inner side wall of the limiting ring.

After the clamping ring is rotated to the wear-resisting block, the elastic layer is located between the wear-resisting block and the limiting ring, and the wear-resisting block is pressed tightly through the elastic layer.

The clamping ring further comprises a clamping pin, and the clamping pin is movably connected with the external connecting ring and is positioned above the external connecting ring.

And after the transmission shaft is inserted into the wear-resistant block, inserting the bayonet lock into the pin shaft hole of the transmission shaft to reinforce the connection between the transmission shaft and the main shaft.

The transmission device for the selenium drum of the copying machine further comprises a knurled section, wherein the knurled section is fixedly connected with the main shaft and arranged on the outer side wall of the main shaft.

Through setting up the annular knurl section plays skid-proof effect.

When the transmission device for the selenium drum of the copying machine is installed, the wear-resistant block is placed in the wear-resistant hole, the clamp ring rotates to the position above the wear-resistant block along the movable groove, the first switching hole is aligned with the second switching hole, the transmission shaft is inserted into the first switching hole, the clamp ring and the transmission shaft are clamped through the pin shaft to complete installation, when the transmission device is disassembled, the corresponding pin shaft is taken down, the transmission shaft can be pulled out, the clamp ring is rotated, the wear-resistant block can be replaced, and the transmission device is convenient to install and disassemble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a selenium drum transmission device for a copier.

Fig. 2 is a perspective view of the spindle provided by the present invention.

Fig. 3 is a perspective view of a wear block provided by the present invention.

Fig. 4 is a cross-sectional view of a snap ring provided by the present invention.

FIG. 5 is a cross-sectional view of a snap ring in accordance with the present invention after attachment to a driveshaft.

1-main shaft, 11-mounting hole, 12-movable groove, 13-clamping groove, 2-wear-resistant block, 21-cylinder, 22-clamping plate, 23-wear-resistant coating, 3-clamping ring, 31-limiting ring, 32-external ring, 33-elastic layer, 34-clamping pin, 4-first transfer hole, 5-first transfer hole and 6-knurled segment.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the present invention provides a transmission device for a selenium drum of a copier, the transmission device for the selenium drum of the copier includes a main shaft 1, a wear-resistant block 2 and a snap ring 3, an outer side wall of the main shaft 1 is provided with a mounting hole 11, the wear-resistant block 2 is detachably connected with the main shaft 1 and is located inside the mounting hole 11, an outer side wall of the main shaft 1 is provided with a movable groove 12, the movable groove 12 is communicated with the mounting hole 11, the snap ring 3 is movably connected with the main shaft 1 and is located inside the movable groove 12, a top end of the wear-resistant block 2 is provided with a first transfer hole 4, and a top end of the snap ring 3 is provided with a second transfer hole 5.

In this embodiment, when installing, earlier place wear-resisting piece 2 in the wear-resisting downthehole, snap ring 3 is followed movable groove 12 is rotatory extremely wear-resisting piece 2's top, first switching hole 4 with second switching hole 5 aligns to insert the transmission shaft first switching hole 4, utilize the round pin axle will snap ring 3 and transmission shaft joint accomplish the installation, when dismantling, take off corresponding round pin axle, can extract the transmission shaft, it is rotatory snap ring 3 can carry out wear-resisting piece 2's change, through above-mentioned structure, use wear-resisting piece 2 replaces the wearing and tearing of main shaft 1, and be convenient for installation and dismantlement.

Further, a plurality of clamping grooves 13 are further formed in the outer side wall of the main shaft 1, and each clamping groove 13 is uniformly arranged around the mounting hole 11 at intervals; the wear-resistant block 2 comprises a cylinder 21 and a plurality of clamping plates 22, the clamping plates 22 are fixedly connected with the cylinder 21 and are uniformly arranged on the outer side wall of the cylinder 21 at intervals, and each clamping plate 22 is arranged in the corresponding clamping groove 13; the wear-resistant block 2 further comprises a wear-resistant coating 23, and the wear-resistant coating 23 is arranged on the inner side wall of the first transfer hole 4.

In the present embodiment, the plurality of engaging grooves 13 are engaged with the engaging plate 22 so as not to be disengaged from the main shaft 1 and to rotate by itself; the wear-resistant coating 23 is used for protecting the wear-resistant block 2, and the service life of the wear-resistant block 2 is prolonged.

Further, the snap ring 3 includes a limit ring 31 and an external ring 32, the limit ring 31 is movably connected with the main shaft 1 and is located inside the snap groove 13, the external ring 32 is fixedly connected with the limit ring 31 and is located outside the limit ring 31, and the external ring 32 and the limit ring 31 are provided with the second switch hole 5 in a penetrating manner; the clamping ring 3 further comprises an elastic layer 33, and the elastic layer 33 is fixedly connected with the limiting ring 31 and is positioned on the inner side wall of the limiting ring 31; the clamping ring 3 further comprises a clamping pin 34, and the clamping pin 34 is movably connected with the external ring 32 and is positioned above the external ring 32; the transmission device for the selenium drum of the copying machine further comprises a knurled section 6, wherein the knurled section 6 is fixedly connected with the main shaft 1 and is arranged on the outer side wall of the main shaft 1.

In this embodiment, after the retainer ring 31 is rotated along the movable groove 12 and the second connection hole 5 and the first connection hole 4 are aligned, the transmission shaft can be mounted on the main shaft 1, after the snap ring 3 is rotated onto the wear-resistant block 2, the elastic layer 33 is located between the wear-resistant block 2 and the retainer ring 31, the wear-resistant block 2 is pressed through the elastic layer 33, and after the transmission shaft is inserted into the wear-resistant block 2, the bayonet pin 34 is inserted into the pin hole of the transmission shaft to reinforce the connection between the transmission shaft and the main shaft 1; through setting up knurling section 6 plays skid-proof effect.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (8)

1. A transmission device for a selenium drum of a copying machine is characterized in that,

the transmission device for the selenium drum of the copying machine comprises a main shaft, a wear-resistant block and a clamping ring, wherein a mounting hole is formed in the outer side wall of the main shaft, the wear-resistant block is detachably connected with the main shaft and located inside the mounting hole, a movable groove is formed in the outer side wall of the main shaft and communicated with the mounting hole, the clamping ring is movably connected with the main shaft and located inside the movable groove, a first switching hole is formed in the top end of the wear-resistant block, and a second switching hole is formed in the top end of the clamping ring.

2. The drive for a selenium drum of a copier according to claim 1,

the outer side wall of the main shaft is further provided with a plurality of clamping grooves, and each clamping groove surrounds the mounting hole and is evenly arranged at intervals.

3. The drive for a selenium drum of a copier according to claim 2,

the wear-resisting piece includes cylinder and cardboard, the quantity of cardboard is a plurality of, every cardboard with cylinder fixed connection to the interval evenly set up in the lateral wall of cylinder, every cardboard install in the corresponding draw-in groove.

4. The drive for a selenium drum of a copier according to claim 3,

the wear-resistant block further comprises a wear-resistant coating, and the wear-resistant coating is arranged on the inner side wall of the first transfer hole.

5. The drive for a selenium drum of a copier according to claim 4,

the snap ring includes spacing ring and outer collar, the spacing ring with main shaft swing joint, and be located the inside of draw-in groove, outer collar with spacing ring fixed connection, and be located the outside of spacing ring, outer collar with the spacing ring runs through and is provided with the second switching hole.

6. The drive for a selenium drum of a copier according to claim 5,

the snap ring further comprises an elastic layer, and the elastic layer is fixedly connected with the limiting ring and is located on the inner side wall of the limiting ring.

7. The drive for a selenium drum of a copier according to claim 6,

the clamping ring further comprises a clamping pin, and the clamping pin is movably connected with the external connecting ring and is positioned above the external connecting ring.

8. The drive for a selenium drum of a copier according to claim 7,

the transmission device for the selenium drum of the copying machine further comprises a knurled section, wherein the knurled section is fixedly connected with the main shaft and arranged on the outer side wall of the main shaft.

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