CN205229671U - Power transmission assembly of sensitization drum - Google Patents
Power transmission assembly of sensitization drum Download PDFInfo
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- CN205229671U CN205229671U CN201520881687.4U CN201520881687U CN205229671U CN 205229671 U CN205229671 U CN 205229671U CN 201520881687 U CN201520881687 U CN 201520881687U CN 205229671 U CN205229671 U CN 205229671U
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- photosensitive drums
- transfer unit
- extension spring
- force transfer
- revolving force
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Abstract
The utility model provides a power transmission assembly of sensitization drum, includes: the driving head, the driving head includes that whole is the drive connecting portion of taper, is close to the rotatory transmission portion and the extension spring buckle of the pointed cone end department setting of drive connecting portion, the bottom of drive connecting portion is provided with outwardly directed at least a pair of jack catch, protruding interlock on jack catch and the host computer driving piece, rotatory transmission portion with set up in the inside cavity revolving force acceptance division cooperation transmission revolving force of sensitization drum gear, set up in sensitization drum gear briquetting on the revolving force acceptance division, sensitization drum gear briquetting includes the briquetting body, is located briquetting body center and outside outstanding load post, one end is fixed in the extension spring on the load post is located to briquetting body and cover, the other end of extension spring set up in on the extension spring buckle of driving head, the extension spring with it is gapped between the load post. The utility model discloses simple structure handles the installation of box and demolishs, and it is stable to pass power.
Description
Technical field
The utility model relates to the handle box with photosensitive drums used in laser printer, duplicating machine or facsimile recorder, more specifically, relates to the force transfer unit in handle box, photosensitive drums used.
Background technology
The image forming apparatus such as laser printer, duplicating machine and facsimile recorder utilize electrofax principle that image is formed at print media as the equipment on paper, is usually made up of main frame and the handle box be removably installed on main frame; Wherein, handle box has box body, forms the photosensitive drums of electrostatic latent image and provide with the developer roll of this electrostatic latent image that develops on developer to photosensitive drums, and photosensitive drums and developer roll are rotatably supported between the end walls of box body.Photosensitive drums has drum barrel and is installed on the force transfer unit of an axial end of drum barrel, and drum barrel is made up of aluminum pipe and the photosensitive material layer be coated on outside aluminum pipe usually, and force transfer unit is used for the revolving force of host driven part to pass to photosensitive drums.
When handle box is mounted on main frame, force transfer unit and the driving shaft be located on main frame connect, and the revolving force of driving shaft are passed to drum barrel and other rotary parts, thus ensure the normal work of photosensitive drums and other rotary parts; After the carbon dust in handle box exhausts, need handle box to pull down from main frame, more to renew handle box.Therefore, force transfer unit should have be convenient to handle box to be installed on main frame and can stable drive and when handle box is removed from main frame easily and the feature that departs from of host driven part.
Utility model content
The purpose of this utility model is to provide the force transfer unit that a kind of structure is simple, be convenient to the photosensitive drums of handle box installation and removal.
To achieve these goals, the utility model takes following technical solution:
A force transfer unit for photosensitive drums, for the revolving force of Receiving Host actuator, and receives the rotation of this revolving force drive photosensitive drums by the photosensitive drum gear being arranged at photosensitive drums end, comprising:
Driving head, described driving head comprises the driving connecting portion of entirety in taper, at the rotatable drive arranged near the tip cone end place of described driving connecting portion and extension spring buckle, the bottom of described driving connecting portion is provided with at least one pair of claw outwardly directed, described claw is engaged with the projection on host driven part, and described rotatable drive coordinates with the hollow rotating power acceptance division being arranged at described photosensitive drum gear inside and transmits revolving force;
Be arranged at the photosensitive drum gear briquetting on described revolving force acceptance division, described photosensitive drum gear briquetting comprises briquetting body, be positioned at described briquetting body central and bearing column outwardly;
Described briquetting body is fixed on and the extension spring be sheathed on bearing column in one end, and the other end of described extension spring is arranged on the extension spring buckle of described driving head; Gap is had between described extension spring and described bearing column.
One as the force transfer unit of the utility model photosensitive drums is improved, and photosensitive drum shaft board is provided with torsion spring, and one end of described torsion spring is stuck in the stopper slot of photosensitive drum shaft board, and free end is pressed against on described driving head.
One as the force transfer unit of the utility model photosensitive drums is improved, and described driving connecting portion is provided with torsion spring through hole, and the free end of described torsion spring is pressed against described torsion spring through-hole wall with through torsion spring through hole.
One as the force transfer unit of the utility model photosensitive drums is improved, and described revolving force acceptance division comprises the cylindrical wall of hollow form, is provided with the postive stop baffle preventing described rotatable drive from departing from cylindrical wall one end.
One as the force transfer unit of the utility model photosensitive drums is improved, and is axially provided with many openings extends and the through slot forming breach on described postive stop baffle to being provided with described postive stop baffle one end in the middle part of described cylindrical wall along described cylindrical wall.
One as the force transfer unit of the utility model photosensitive drums is improved, described rotatable drive comprises at least two around the equally distributed ratchet of described driving connecting portion, described ratchet is positioned at described revolving force acceptance division, and be close to described revolving force acceptance division inwall or with protrude from the screens of described revolving force acceptance division inwall against transmitting revolving force.
One as the force transfer unit of the utility model photosensitive drums is improved, and on described ratchet, end floor beam is limited in described Rotation of receiver portion by described postive stop baffle.
One as the force transfer unit of the utility model photosensitive drums is improved, and the tip cone end of described driving connecting portion contacts with described bearing column.
One as the force transfer unit of the utility model photosensitive drums is improved, and described bearing column top is provided with limited impression, and described tip cone end stretches in described limited impression.
One as the force transfer unit of the utility model photosensitive drums is improved, and the bottom of described driving connecting portion has the groove holding host driven part end.
One as the force transfer unit of the utility model photosensitive drums is improved, described photosensitive drum gear briquetting also includes at least one pair of clamping part stretched out from described briquetting body side, and described clamping part is buckled on described revolving force acceptance division or described photosensitive drum gear housing.
One as the force transfer unit of the utility model photosensitive drums is improved, and the wire diameter≤0.5mm of described extension spring, pitch is identical with wire diameter.
From above technical scheme, force transfer unit of the present utility model comprises driving head, photosensitive drum gear briquetting, extension spring, photosensitive drum gear briquetting is assemblied in photosensitive drum gear, extension spring is sheathed on the bearing column of photosensitive drum gear briquetting, driving head is connected with photosensitive drum gear briquetting by extension spring, extension spring can not be moved in the axial direction, only can there is the swing of off-axis, coordinate the swing of the driving head connected with host driven part, and can prevent described driving head from departing from photosensitive drum gear briquetting bearing column.Whole power transferring structure is simple, and force transferring structure is stablized, and facilitates the Engage and disengage of host driven part in handle box installation and removal process.Especially, described photosensitive drum shaft board is also provided with torsion spring, one end of described torsion spring is stuck in the stopper slot of photosensitive drum shaft board, and free end is pressed against on described driving head, and described driving head more easily resets by means of the elasticity of described torsion spring; Namely under the effect of extension spring and torsion spring, make the axis of photosensitive drums and the dead in line of described host driven part by driving head, and rotate with described host driven part or stop.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment, simple introduction is done below by the accompanying drawing used required in embodiment or description of the prior art, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the utility model force transfer unit is assemblied in handle box;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model force transfer unit;
Fig. 3 is the structural representation of the utility model driving head;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is the rear view of Fig. 3;
Fig. 6 is the structural representation of the utility model photosensitive drum gear briquetting;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 is the structural representation of the utility model photosensitive drum shaft board;
Fig. 9 is the vertical view of the utility model photosensitive drum gear;
Figure 10 is the cut-open view of Fig. 9;
Figure 11 a to Figure 14 b is respectively each constitutional diagram of force transfer unit and the detachment process of host driven part when handle box takes out from printer.。
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in more detail.
Embodiment
As depicted in figs. 1 and 2, force transfer unit of the present utility model comprises driving head 1, extension spring 2, photosensitive drum gear briquetting 3, torsion spring 4.With reference to Fig. 3, Fig. 4 and Fig. 5, driving head 1 comprises overall driving connecting portion 1-1, the rotatable drive 1-2 arranged at close described driving connecting portion 1-1 tip cone end place and the extension spring buckle 1-3 arranged on rotatable drive 1-2 in taper; Described extension spring buckle 1-3 also can be set directly near described driving connecting portion 1-1 tip cone end place.Drive the bottom of connecting portion 1-1 to be provided with the groove 1-1a with collecting host driven part 100 end, and protruding a pair claw 1-1b, claw 1-1b are used for and the projection occlusion on host driven part 100, for the revolving force of Receiving Host actuator 100.
Described rotatable drive 1-2 coordinates with the hollow rotating power acceptance division 101a being arranged at photosensitive drum gear 101 inside and transmits revolving force.With reference to Fig. 9, Figure 10 and Fig. 1, described revolving force acceptance division 101a comprises the cylindrical wall 101b of hollow form, is provided with the postive stop baffle 101c preventing described rotatable drive 1-2 from departing from cylindrical wall one end; Preferably, extend and the through slot 101d forming breach on described postive stop baffle 101c to being provided with described postive stop baffle 101c one end in the middle part of described cylindrical wall 101b being axially provided with many openings along described cylindrical wall 101b.It (can certainly be more than three equally distributed ratchets that described rotatable drive 1-2 comprises two around the ratchet in " Eight characters " shape that described driving connecting portion 1-1 is symmetrical, or other are the ratchet of " word " shape), the ratchet of described rotatable drive 1-2 is positioned at described revolving force acceptance division 101a, and be close to described revolving force acceptance division 101a inwall or with protrude from the screens of described revolving force acceptance division inwall against transmitting revolving force.On described ratchet, end floor beam is limited in described Rotation of receiver portion by described postive stop baffle.
With reference to Fig. 6 and Fig. 7, photosensitive drum gear briquetting 3 comprises briquetting body 3-1, be arranged at the clamping part 3-2 on briquetting body 3-1 for a pair and be positioned at the bearing column 3-3 at briquetting body 3-1 center, clamping part 3-2 is arranged at the sidepiece of briquetting body 3-1 and upwards extends, and bearing column 3-3 also protrudes from briquetting body 3-1 and upwards extends.As a preferred embodiment of the present utility model, recessed limited impression 3-3a is processed with at the top of bearing column 3-3, bearing column 3-3 top is made to form an annular protruding, the tip cone end of described driving connecting portion contacts with described bearing column, the zone of action of the tip cone end 1-1c of driving head 1 is restricted in this limited impression 3-3a, thus restriction driving head 1 departs from the bearing column of described photosensitive drum gear briquetting.The photosensitive drum gear briquetting 3 described revolving force acceptance division 101a be arranged in photosensitive drum gear 101 does not arrange one end of postive stop baffle, and the flange in clamping part 3-2 and photosensitive drum gear 101 inner walls is clasped (flange buckle also can be located on revolving force acceptance division); The structure that flange in certain described clamping part 3-2 and photosensitive drum gear 101 inner walls is clasped also can be arranged on thread connecting mode on photosensitive drum gear briquetting and revolving force acceptance division and substitute.
As shown in Figure 1, photosensitive drums 102 is arranged in handle box 104 by the photosensitive drum shaft board 103 being arranged at handle box 104 end, photosensitive drum gear 101 is arranged at the end of photosensitive drums 102, the photosensitive drum gear briquetting 3 described revolving force acceptance division 101a be arranged in photosensitive drum gear 101 does not arrange one end of postive stop baffle, extension spring 2 one end to be fixed on photosensitive drum gear briquetting 3 and to be set on the bearing column 3-3 of photosensitive drum gear briquetting 3, driving head 1 is connected with photosensitive drum gear briquetting 3 by extension spring 2, because extension spring 3 is that fixed cover is located on the bearing column 3-3 of photosensitive drum gear briquetting 3, and pitch is identical with wire diameter, namely often very close to each other between circle, produce axial elasticity hardly, therefore it is not axially producing displacement substantially, only swing, form the elastic deformation of arc, only to driving head 1 position-limiting action.Preferably, the wire diameter≤0.5mm of extension spring 2, pitch is identical with wire diameter, namely often very close to each other between circle, thus can form a soft connector.The sleeve that extension spring also can adopt the flexible or resilient material such as leather, rubber or PP material to make substitute.
Shown in composition graphs 8, photosensitive drum shaft board 103 is provided with the erection column 103a for installing torsion spring 4, torsion spring 4 is sheathed on erection column 103a, one end of torsion spring 4 is stuck in the stopper slot (non-label) of photosensitive drum shaft board 103, the other end (free end) is through driving the torsion spring through hole that connecting portion 1-1 is arranged, the other end of described torsion spring is pressed against on described torsion spring through-hole wall through through hole, plays a part driving head 1 is resetted.Certainly, the other end of described torsion spring also directly can be pressed against the outside of described driving connecting portion 1-1.
Be described in detail below in conjunction with the course of action of Figure 11 a to Figure 14 b to force transfer unit of the present utility model:
As shown in Figure 11 a and Figure 11 b, when handle box is arranged in printer, host driven part 100 matches with driving head 1, now driving head 1 and host driven part 100 are on the same axis, extension spring 2 is in non-force and deformation state, when the actuator 100 of printer rotates, photosensitive drums 102 is driven to rotate by the described revolving force transfer part on driving head 1;
As depicted in figs. 12 a and 12b, when starting handle box to take out from printer, driving head 1 starts to be separated with host driven part 100, in detachment process, driving head is subject to the restriction of position-limit mechanism in main frame, cause host driven part 100 to drive driving head 1 to deflect, and make the extension spring 2 be fixed on the bearing column 3-3 of photosensitive drum gear briquetting 3 start to occur the Bending Deformation of off-axis;
As shown in Figure 13 a and Figure 13 b, when handle box takes out from printer, when driving head 1 starts to be separated completely with host driven part 100, extension spring 2 starts maximum deflection deformation occurs;
As shown in Figure 14 a and Figure 14 b, after handle box takes out from printer, driving head and host driven part are separated, and driving head 1 starts to reset under the acting force of torsion spring 4, and extension spring 2 also starts to restore to the original state.
Described handle box be installed to the process of printer and above-mentionedly from printer, taking out the process that handle box forms a contrary.
Force transfer unit of the present utility model is by arranging photosensitive drum gear briquetting and extension spring, driving head is connected with photosensitive drums, the extension spring be set on photosensitive drum gear briquetting is connected with driving head, driving head is played and swings spacing effect, at handle box loading printer and from the process that printer is pulled down, the axis of the relative photosensitive drums of driving head is formed and departs from, and the connection being convenient to driving head and host driven part connects with disengaging.Meanwhile, when being provided with the torsion spring on photosensitive drum shaft board, driving head utilizes the torsion spring be arranged on photosensitive drum shaft board to further increase the ability of reset.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although be described in detail the utility model with reference to above-described embodiment, those of ordinary skill in the field are to be understood that, still can modify to embodiment of the present utility model or equivalent replacement, and not departing from any amendment of the utility model spirit and scope or equivalent replacement, it all should be encompassed among right of the present utility model.
Claims (13)
1. a force transfer unit for photosensitive drums, for the revolving force of Receiving Host actuator, and receives the rotation of this revolving force drive photosensitive drums by the photosensitive drum gear being arranged at photosensitive drums end, comprising:
Driving head, described driving head comprises the driving connecting portion of entirety in taper, at the rotatable drive arranged near the tip cone end place of described driving connecting portion and extension spring buckle; The bottom of described driving connecting portion is provided with at least one pair of claw outwardly directed, and described claw is engaged with the projection on host driven part; Described rotatable drive coordinates with the hollow rotating power acceptance division being arranged at described photosensitive drum gear inside and transmits revolving force;
Be arranged at the photosensitive drum gear briquetting on described revolving force acceptance division, described photosensitive drum gear briquetting comprises briquetting body, be positioned at described briquetting body central and bearing column outwardly;
Described briquetting body is fixed on and the extension spring be sheathed on bearing column in one end, and the other end of described extension spring is arranged on the extension spring buckle of described driving head; Gap is had between described extension spring and described bearing column.
2. the force transfer unit of a kind of photosensitive drums according to claim 1, is characterized in that, photosensitive drum shaft board is provided with torsion spring, and one end of described torsion spring is stuck in the stopper slot of photosensitive drum shaft board, and free end is pressed against on described driving head.
3. the force transfer unit of a kind of photosensitive drums according to claim 2, is characterized in that, described driving connecting portion is provided with torsion spring through hole, and the free end of described torsion spring is pressed against described torsion spring through-hole wall through torsion spring through hole.
4. the force transfer unit of a kind of photosensitive drums according to claim 1, is characterized in that, described revolving force acceptance division comprises the cylindrical wall of hollow form, is provided with the postive stop baffle preventing described rotatable drive from departing from cylindrical wall one end.
5. the force transfer unit of a kind of photosensitive drums according to claim 4, it is characterized in that, be axially provided with many openings along described cylindrical wall and extend and the through slot forming breach on described postive stop baffle to being provided with described postive stop baffle one end in the middle part of described cylindrical wall.
6. the force transfer unit of a kind of photosensitive drums according to claim 4, it is characterized in that, described rotatable drive comprises at least two around the equally distributed ratchet of described driving connecting portion, described ratchet is positioned at described revolving force acceptance division, and be close to described revolving force acceptance division inwall or with protrude from the screens of described revolving force acceptance division inwall against transmitting revolving force.
7. the force transfer unit of a kind of photosensitive drums according to claim 6, is characterized in that, on described ratchet, end floor beam is limited in described Rotation of receiver portion by described postive stop baffle.
8. the force transfer unit of a kind of photosensitive drums according to claim 1, is characterized in that, the tip cone end of described driving connecting portion contacts with described bearing column.
9. the force transfer unit of a kind of photosensitive drums according to claim 8, is characterized in that, described bearing column top is provided with limited impression, and described tip cone end stretches in described limited impression.
10. according to the force transfer unit of a kind of photosensitive drums in claim 1 to 9 described in any one, it is characterized in that, the bottom of described driving connecting portion has the groove holding host driven part end.
11. according to the force transfer unit of a kind of photosensitive drums in claim 1 to 9 described in any one, it is characterized in that, described photosensitive drum gear briquetting also includes at least one pair of clamping part stretched out from described briquetting body side, and described clamping part is buckled on described revolving force acceptance division or described photosensitive drum gear housing.
12. according to the force transfer unit of a kind of photosensitive drums in claim 1 to 9 described in any one, and it is characterized in that, the wire diameter≤0.5mm of described extension spring, pitch is identical with wire diameter.
13., according to the force transfer unit of a kind of photosensitive drums in claim 1 to 9 described in any one, is characterized in that, described extension spring can be replaced the malleable sleeve of tool be made up of flexible or resilient material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520881687.4U CN205229671U (en) | 2015-11-05 | 2015-11-05 | Power transmission assembly of sensitization drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520881687.4U CN205229671U (en) | 2015-11-05 | 2015-11-05 | Power transmission assembly of sensitization drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229671U true CN205229671U (en) | 2016-05-11 |
Family
ID=55904725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520881687.4U Active CN205229671U (en) | 2015-11-05 | 2015-11-05 | Power transmission assembly of sensitization drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205229671U (en) |
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2015
- 2015-11-05 CN CN201520881687.4U patent/CN205229671U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |