CN101907858A - Photosensitive drum driving assembly - Google Patents
Photosensitive drum driving assembly Download PDFInfo
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- CN101907858A CN101907858A CN2009100404470A CN200910040447A CN101907858A CN 101907858 A CN101907858 A CN 101907858A CN 2009100404470 A CN2009100404470 A CN 2009100404470A CN 200910040447 A CN200910040447 A CN 200910040447A CN 101907858 A CN101907858 A CN 101907858A
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- photosensitive drum
- driving force
- plane
- rotary driving
- gear
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
Abstract
The invention provides a photosensitive drum driving assembly which comprises a gear wheel and an adjusting assembly, wherein the gear wheel is closely fitted at one end of a photosensitive drum; the adjusting assembly comprises a rotary driving force receiving head which extends out of the gear wheel; the adjusting assembly can be arranged in the gear wheel to move in reciprocating translation relative to the gear wheel along the axial direction of the photosensitive drum and a first direction vertical to the axial direction, and an elastic support part and an axial limit part are arranged between the adjusting assembly and the gear wheel; and the rotation driving force receiving head can be rotatably arranged on the adjusting assembly around the axis per se. Compared with the prior art, the photosensitive drum driving assembly allows simple and convenient assembly, and has stable structure performance; and a processing box in which the photosensitive driving assembly is adopted ensures stable disembarking and stable operation and has reliable performance.
Description
Technical field
The present invention relates to a kind of drive assembly of photosensitive drum that is used on the handle box.
Background technology
In image forming apparatus such as Xerox, digital duplicating machine or integral type printer, be provided with and be used for developing apparatus that the electrostatic latent image that is formed on the photosensitive drums is developed, this developing apparatus is laid in carbon dust on the electrostatic latent image and develops.Usually, the carbon dust consumed that develops is generally provided by handle box, after the carbon dust in the handle box uses up, and the handle box that will more renew again.
Usually, handle box is to work by the driving force that the drive assembly of photosensitive drum that is assemblied in photosensitive drums one end is accepted image forming apparatus.U.S. Patent Application Publication instructions US2008/0152388A1 discloses a kind of handle box, and the drive assembly of photosensitive drum of its photosensitive drums end is to adopt ball formula universal joint to drive connecting structure.There is following deficiency in this driving connecting structure: ball formula universal joint is deviate from (particularly in the middle of transportation, this phenomenon more is prone to) easily from gear, drives connection forfeiture or job insecurity and make.
Summary of the invention
The drive assembly of photosensitive drum that the purpose of this invention is to provide a kind of dependable performance has handle box machine-falling steady, dependable performance, the working stability of this drive assembly of photosensitive drum.
To achieve these goals, the present invention has adopted following technical scheme: a kind of drive assembly of photosensitive drum is provided, comprises: the gear that is tight with at photosensitive drums one end; Adjust assembly, it includes the rotary driving force that stretches out outside the described gear and receives head; Wherein, described adjustment assembly can along photosensitive drum shaft to and perpendicular to this axial first direction is arranged at reciprocating and flatly moving with respect to described gear in the middle of this gear, be provided with elastic support member and axial limiting parts between described adjustment assembly and the gear; Described rotary driving force receives head and can be arranged at rotatably on the described adjustment assembly around self axis.
Described adjustment assembly comprises motion sub-component and adjusting lever, described adjusting lever is provided with chute, described motion sub-component can along perpendicular to photosensitive drum shaft to second direction be arranged at reciprocating and flatly moving in this chute with respect to described adjusting lever, the projection on the same sagittal plane of photosensitive drums of described second direction and described first direction is intersected.
Described motion sub-component comprises that described rotary driving force receives head and adjusts slide block with one, described rotary driving force receives head can be connected in described adjustment slide block rotatably around its axis, and being provided with one between described rotary driving force reception head and the adjustment slide block can be around the rotary spacing pin of described axis rotation.
Described rotary driving force receives head and has comprised that outer end, pars intermedia and axial region, this axial region are provided with the pin-and-hole that passes for described rotary spacing pin; The center of described outer end is formed with the spherical of indent, is formed with outwardly directed first dog, second dog around this spherical and by first dog and separated first tangent plane of second dog and second tangent plane; The surface of described first dog has first occlusal surface, first inclined-plane and second inclined-plane, the surface of described second dog has second occlusal surface, the 3rd inclined-plane and the 4th inclined-plane, wherein, first inclined-plane, second inclined-plane, the 3rd inclined-plane and the 4th inclined-plane all are formed on the neighboring that rotary driving force receives head.
Described first dog and second dog, described first tangent plane and second tangent plane receive the axis formation center symmetry of head respectively about rotary driving force.
Described adjustment slide block is made of a pedestal and the boss that is formed on the pedestal, this boss inside has the through hole of axial perforation, the diameter of this through hole receives the diameter of an axial region greater than described rotary driving force, and receives the diameter of a pars intermedia less than described rotary driving force; First side of described pedestal has outwardly directed first spacing block set, and second side has outwardly directed second spacing block set; Have the groove that holds described rotary spacing pin on the bottom surface of described pedestal, this groove has first positive stop and second positive stop that are oppositely arranged around being formed at around the described through hole in this groove.
Has the transmission gear ring on the outer circumference surface of described gear, the gear cavity that gear inside is provided with dividing plate perpendicular to axial direction and is positioned at the dividing plate top, the center of this dividing plate has a spacing hole, is evenly distributed with some the convex tendons that extend vertically on the circumferential side wall of gear cavity;
Described adjusting lever is made of top, bar portion and jump ring, has the chute that radially connects on this top, and described spacing base plate is fastened on this jump ring;
Described spacing base plate is positioned at the inboard of described dividing plate, described top is positioned at the outside of described dividing plate, described bar portion is passed from described spacing hole, and the width of this spacing hole equates substantially that with the cross-sectional width of described bar portion the length of this spacing hole is greater than the cross-section lengths of this bar portion.
Preferably, the xsect of described spacing hole and described bar portion is cydariform.
Preferably, described elastic support member is the screw type compression spring.
Preferably, described axial limiting parts are spacing base plate, and this spacing base plate is provided with the blocked hole that passes for described jump ring.
Since the adjustment assembly of drive assembly of photosensitive drum of the present invention can along photosensitive drum shaft to and perpendicular to this axial first direction is arranged at reciprocating and flatly moving with respect to gear in the middle of this gear, be provided with elastic support member and axial limiting parts between described adjustment assembly and the gear, when the handle box that above-mentioned drive assembly of photosensitive drum is installed is in the printer slideway, its adjust rotary driving force on assembly receive head under the acting force of elastic support member, make its remain with photosensitive drum shaft to consistent, and owing to be provided with the axial limiting parts, adjust assembly and be not easy from gear, to deviate from, guaranteed the reliability and stability of work.When contacting with the printer driver bar, rotary driving force receives head and utilizes inclined-plane separately to wipe mutually with the disc of printer driver bar, and printer driver bar compressing rotary driving force receives head along the photosensitive drums axially-movable; During working position in handle box drops on printer, the rotary driving force that the printer driver bar has just been aimed at drive assembly of photosensitive drum automatically receives head; When printer starts, the printer driver bar begins angle of idle running earlier, receive two dog interlocks on the head with rotary driving force then, thereby the photosensitive drums that drives in the handle box is rotated, handle box is developed for powder, thereby realize the print procedure of printer.Therefore, in terms of existing technologies, drive assembly of photosensitive drum assembling of the present invention is simple, convenient, and structural behaviour is stable, has adopted handle box machine-falling steady, dependable performance, the working stability of this drive assembly of photosensitive drum.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a photosensitive drums structural representation of having used the driven unit of an embodiment of the present invention;
Fig. 2 is the structural representation of the driven unit in the middle of Fig. 1;
Fig. 3 is the partial sectional view of driven unit shown in Figure 2;
Fig. 4 is the parts explosion of driven unit shown in Figure 2;
Fig. 5 is the structural representation that the rotary driving force in the middle of Fig. 4 receives head;
Fig. 6 is the rear view that rotary driving force shown in Figure 5 receives head;
Fig. 7 is the structural representation of the adjustment slide block in the middle of Fig. 4;
Fig. 8 is the bottom view of adjustment slide block shown in Figure 7;
Fig. 9 is the structural representation of the adjusting lever in the middle of Fig. 4;
Figure 10 is the bottom view of adjusting lever shown in Figure 9;
Figure 11 is the structural representation of the gear in the middle of Fig. 4;
Figure 12 is the structural representation of the spacing base plate in the middle of Fig. 4;
Figure 13 is the structural representation of the motion sub-component in the middle of the driven unit shown in Figure 2;
Figure 14 is the bottom view of motion sub-component shown in Figure 13;
Figure 15 is the central adjustment assembly of driven unit shown in Figure 2 and the structural representation of spacing base plate;
Figure 16 be driven unit shown in Figure 2 by outer axial view inwardly, this figure has hidden rotary driving force and has received head;
Figure 17 be driven unit shown in Figure 2 by lining axial view outwardly, this figure has hidden spacing base plate;
Figure 18 a～Figure 18 c is an adjustment assembly shown in Figure 15 with respect to the gear process synoptic diagram of translation radially;
Figure 19 a～Figure 19 c is the process synoptic diagram of adjustment assembly shown in Figure 15 with respect to gear translation vertically;
Figure 20 a～Figure 20 d be contain photosensitive drums shown in Figure 1 handle box in the machine process that falls, the engagement process synoptic diagram of its driven unit and printer driver head;
Figure 21 a～Figure 21 d be contain photosensitive drums shown in Figure 1 handle box in the off line process, the engagement process synoptic diagram of its driven unit and printer driver head.
Embodiment
Fig. 1 has represented to use the photosensitive drums 10 of the driven unit 1 of an embodiment of the present invention, and driven unit 1 is fixed on an end of the bulging main body 9 of photosensitive drums 10, has photographic layer on the side face of drum main body 9.Driven unit 1 is used to receive the rotary driving force that comes from printer driver mechanism, and this rotary driving force is passed to bulging main body 9, and bulging main body 9 is rotated around its axis under this rotary driving force effect.
Fig. 2～Fig. 4 expresses the basic comprising of driven unit 1, and its structure comprises that mainly gear 2, rotary driving force receive 3, adjust slide block 4, adjusting lever 5, rotary spacing pin 6, spacing base plate 7 and screw type compression spring 8.Gear 2 is tight with at an end of bulging main body 9, the axis of this gear 2 with the drum main body 9 dead in line, and with the drum main body 9 rotate around their common axis synchronously.Rotary driving force receives 3 and is connected in by rotary spacing pin 6 and adjusts slide block 4, and this rotary driving force receives 3 and can back and forth rotate with respect to adjusting slide block 4 around its axis in the certain angle scope; Adjusting lever 5 tops have chute 55, and adjusting slide block 4 can reciprocatingly slide with respect to adjusting lever 5 in this chute 55; Spring 8 is enclosed within on the adjusting lever 5; Adjusting lever 5 is assemblied in the gear 2 by spacing base plate 7.
Wherein, rotary driving force receives 3, adjusts slide block 4, rotary spacing pin 6 and adjusting lever 5 and constitute one and adjust assembly 11.Referring to Figure 19 a～Figure 19 c, by the compression of spring 8 and the axial limiting of spacing base plate 7, this adjustment assembly 11 can be along photosensitive drum shaft to Z, do conditional axially back and forth translation motion with respect to gear 2.Again referring to Figure 16,17,18a～Figure 18 c, this adjustment assembly 11 can also along perpendicular to photosensitive drum shaft to the first direction X of Z, do the conditional first linear reciprocation translation motion with respect to gear 2, this motion is realization the cydariform hole 22 of gear 2 in.In addition again referring to Figure 13～Figure 17, by rotary driving force receive 3, adjust 12 of motion sub-components that slide block 4 and rotary spacing pin 6 form can along perpendicular to photosensitive drum shaft to the second direction Y of Z, in chute 55, do the conditional second linear reciprocation translation motion with respect to adjusting lever 5.First direction X is mutual with the projection of second direction Y on the same sagittal plane of photosensitive drums 10 and intersects, neither overlaps also uneven state, and in the present embodiment, first direction X is vertical mutually with second direction Y.
Referring to Fig. 5 and Fig. 6, rotary driving force receives 3 shapes that roughly are a similar torch, constitute by the outer end 30 that attenuates successively from (being from up to down in the middle of Fig. 5) outward inwards, pars intermedia 36 and axial region 37, pars intermedia 36 and axial region 37 are cylindrical, and axial region 37 is provided with the pin-and-hole 38 that passes for rotary spacing pin 6.The center of outer end 30 is formed with the spherical 35 of indent, is formed with outwardly directed first dog 31 and second dog, 32, the first dogs 31 and the second dog 32 axis 39 formation center symmetries about rotary driving force reception 3 around this spherical 35.In addition, spherical 35 around also form by first dog 31 and second dog 32 and separate and form centrosymmetric first tangent plane 33 and second tangent plane 34 about axis 39 equally.The surface of first dog 31 has first occlusal surface 313, first inclined-plane 311 and second inclined-plane 312, the surface of second dog 32 has second occlusal surface 323, the 3rd inclined-plane 321 and the 4th inclined-plane 322, wherein, first occlusal surface 313 and second occlusal surface 323, first inclined-plane 311 and the 3rd inclined-plane 321, second inclined-plane 312 and the 4th inclined-plane 322 be respectively about axis 39 formation center symmetries, and first inclined-plane 311, second inclined-plane 312, the 3rd inclined-plane 321 and the 4th inclined-plane 322 all are formed on rotary driving force and receive a neighboring of 3.
Referring to Fig. 7 and Fig. 8, adjusting slide block 4 is made of with the cylindrical boss 45 that is formed on the pedestal 46 pedestal 46 that roughly is cydariform, boss 45 inside have the cylindrical hole 47 of axial perforation, the diameter of this through hole 47 receives the diameter of 3 axial region 37 greater than rotary driving force, and receive the diameter of 3 pars intermedia 36 less than rotary driving force, therefore only can pass for axial region 37.First side 48 of pedestal 46 has outwardly directed first spacing block set 41, the second sides 49 and has outwardly directed second spacing block set 49, and the effect of above-mentioned two spacing block sets is that the distance that slide block 4 moves is adjusted in control in adjusting lever chute plane.On the bottom surface of pedestal 46, has the groove 410 that holds rotary spacing pin 6, this groove 410 is around being formed at around the through hole 47, be provided with two the first relative positive stops 43 and second positive stop 44 in the groove, make rotary spacing pin 6 can and only can in the certain angle scope, rotate around the axis 411 of adjusting slide block 4.
Referring to Fig. 9 and Figure 10, adjusting lever 5 is made of top 51, bar portion 52 and jump ring 53, and top 51 is projected as circle on its sagittal plane, have the chute 55 that radially connects on this top 51, and the xsect of this chute 55 is roughly " protruding " font.Adjusting slide block 4 can radially slide in this chute 55.The shape of cross section of bar portion 52 is cydariform.Jump ring 53 roughly is " U " font, is formed with claw 54 on it.
Referring to Figure 11, has transmission gear ring 24 on the outer circumference surface of gear 2, the gear cavity 21 that gear 2 inside are provided with dividing plate perpendicular to axial direction 25 and are positioned at dividing plate 25 tops, the center of this dividing plate 25 has a cydariform hole 22, the width in this cydariform hole 22 equates substantially with the cross-sectional width of the bar portion 52 of adjusting lever 5, and its length is then greater than the cross-section lengths of bar portion 52.Be evenly distributed with many convex tendons 23 that extend vertically on the circumferential side wall 26 of gear cavity 21, the effect of convex tendon 23 is the inwall intensity that strengthens gear 2.Referring to Figure 16 and Figure 17, cydariform hole 22 provides spacing for adjusting assembly 11 along the first linear reciprocation translation motion that direction X is done, the circumferential side wall 26 of gear cavity 21 and convex tendon 23 then for motion sub-component 12 along direction Y done the second linear reciprocation translation motion provide spacing.
Referring to Figure 12, spacing base plate 7 is a circular slab, has two blocked holes 71,72 that can pass for the jump ring 53 of adjusting lever 5 on this spacing base plate 7.
Referring to Figure 13 and Figure 14, motion sub-component 12 is received 3, is adjusted slide block 4 and rotary spacing pin 6 is formed by rotary driving force, rotary driving force receives an axial region 37 of 3 and passes the through hole 47 of adjusting slide block 4, and rotary spacing pin 6 passes the pin-and-hole 38 of axial region 37 and places in the groove 410 of adjusting slide block 4 bottoms.
Referring to Figure 15, adjust assembly 11 and receive 3, adjust slide block 4, rotary spacing pin 6, adjusting lever 5 and spacing base plate 7 and constitute by rotary driving force.By the compression of spring 8, this adjusts assembly 11 can be along photosensitive drum shaft to Z, with respect to the axially back and forth translation motion of gear 2 dos.
By Figure 16 and Figure 17, can comparatively be expressly understood the position relation of adjusting assembly 11 and gear 2, for the ease of understanding, hidden rotary driving force among Figure 16 and received 3, hidden spacing base plate 7 among Figure 17.
By Figure 18 a～Figure 18 c, can be expressly understood comparatively and adjust assembly 11 that this motion is realization the cydariform hole 22 of gear 2 in along the first linear reciprocation translation motion of being done to the first direction X of Z, with respect to gear 2 perpendicular to photosensitive drum shaft.
By Figure 19 a～Figure 19 c, can comparatively be expressly understood and adjust the compression of assembly 11, the axially back and forth translation motion of being done with respect to gear 2 to Z along photosensitive drum shaft by spring 8.
Figure 20 a～Figure 20 d expresses the handle box (end of photosensitive drums only is shown) that driven unit 1 is housed and falls into the interior course of work synoptic diagram of printer, and handle box falls in the printer along the direction Xa perpendicular to the photosensitive drums axis; Figure 21 a～Figure 21 d expresses the course of work synoptic diagram that handle box that driven unit 1 is housed is deviate from the printer, and handle box is deviate from printer along the direction Xb of vertical drum axis.Adjustment component 11 integral body in the driven unit 1 move inward along direction Za, and adjustment component 11 integral body outwards move along direction Zb; Referring to Figure 13, θ a represents that rotary driving force receives 3 and clockwise rotates direction, and θ b represents that rotary driving force receives 3 and rotates counterclockwise direction.
Its course of work is as follows:
1, along direction Xa handle box is pushed printer;
2, referring to Figure 20 a～Figure 20 d, when driven unit on the handle box 1 when direction Xa puts into printer and touch printer driver bar 13, have two kinds of situations need decompose explanation:
When 1) being first dog 31 as if initial contact position, printer driver bar 13 can brush up against two inclined-planes 311,312 of first dog 31, these two faces must have face can be stressed a little less than, when second inclined-plane 312 stressed when more weak, printer driver bar 13 wiping second inclined-plane 312 promote rotary driving forces receive 3 rotate an angle along direction θ a after, printer driver bar 13 will be cut on second tangent plane 34 with second inclined-plane, 312 adjacency automatically, and causes adjustment assembly 11 integral body in the driven unit 1 to move along the Za direction; When first inclined-plane 311 stressed when more weak, printer driver bar 13 will wipe first inclined-plane 311 promote rotary driving forces receive 3 rotate an angle along θ b direction after, printer driver bar 13 also can be cut on first tangent plane 33 with first inclined-plane, 311 adjacency automatically, and causes adjustment assembly 11 integral body in the driven unit 1 to move along the Za direction.Because second dog 32 and first dog, 31 center symmetries, therefore when initial contact position was second dog 32, its course of action and said process were similar;
When 2) being first tangent plane 33 or second tangent plane 34 as if initial contact position, printer driver bar 13 will directly be cut on first tangent plane 33 or second tangent plane 34 automatically, and causes adjustment assembly 11 integral body in the driven unit to move along the Za direction.
3, along with the acting force along direction Xa strengthens, adjustment assembly 11 integral body in the driven unit 1 also increase along Za direction moving displacement; And have only when the printer driver bar touches spherical 35, adjustment component 11 integral body in the driven unit 1 move along direction Zb, are zero until displacement;
4, printer activation, printer driver bar 13 rotary driving force that will be coupled automatically receives 3, and rotary driving force receives 3 bulging main body 9 rotations of accepting to drive from the rotary driving force of printer photosensitive drums 10;
5, receive 3 when accepting the driving force of printer when rotary driving force, driving force from printer may not be a steady state value, so move the changing value that cushions printer driver power by the staggered straight line among a small circle of the adjustment assembly 11 in the driven unit 1, thereby make the photosensitive drums stability of rotation, do not produce and beat and fluctuate, handle box is working properly, and print quality is good;
6, referring to Figure 21 a～Figure 21 d, after printer was out of service, when handle box was taken out from printer, handle box moved initially along direction Xb, and printer driver bar 13 begins to break away from rotary driving force and receives 3;
7, when printer driver bar 13 touches the edge of spherical 35, adjustment assembly 11 beginnings in the driven unit 1 are whole moves along direction Za;
8, increase along direction Za mobile displacement along with adjusting assembly 11 integral body, if when the printer driver bar runs into first dog 31 or second dog 32, can stir rotary driving force and receive 3 and rotate an angle, cause 13 incisions of printer driver bar on first tangent plane 33 or second tangent plane 34 along θ a or θ b direction;
9, cut on first tangent plane 33 or second tangent plane 34 when printer driver bar 13, adjust assembly 11 whole beginnings and move along direction Zb, when displacement was zero, handle box just can take out from printer.
Only be preferred implementation of the present invention below, should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, and not break away from the protection domain of claim of the present invention.For example, other axial limiting structure that spacing base plate can adopt those skilled in the art to expect easily realizes that the axial limiting structure can be the individual member that separates with adjusting lever, also can be formed in a part on the adjusting lever.In addition, elastic support member can substitute with the elastomeric element beyond the screw type compression spring, for example can compressed elastic plastic member structure etc.; The shape of the spacing hole on the dividing plate of gear also is not limited to cydariform, can also be that rectangle, flat shape quadrilateral etc. have the Any shape on two flat shape limits, if can make adjust assembly only can be vertically and radially translation, get final product and can not rotate around axis.
Claims (10)
1. drive assembly of photosensitive drum comprises:
Be tight with at the gear of photosensitive drums one end;
Adjust assembly, it includes the rotary driving force that stretches out outside the described gear and receives head;
It is characterized in that:
Described adjustment assembly can along photosensitive drum shaft to and perpendicular to this axial first direction is arranged at reciprocating and flatly moving with respect to described gear in the middle of this gear, be provided with elastic support member and axial limiting parts between described adjustment assembly and the gear; Described rotary driving force receives head and can be arranged at rotatably on the described adjustment assembly around self axis.
2. drive assembly of photosensitive drum according to claim 1 is characterized in that:
Described adjustment assembly comprises motion sub-component and adjusting lever, described adjusting lever is provided with chute, described motion sub-component can along perpendicular to photosensitive drum shaft to second direction be arranged at reciprocating and flatly moving in this chute with respect to described adjusting lever, the projection on the same sagittal plane of photosensitive drums of described second direction and described first direction is intersected.
3. drive assembly of photosensitive drum according to claim 2 is characterized in that:
Described motion sub-component comprises that described rotary driving force receives head and adjusts slide block with one, described rotary driving force receives head can be connected in described adjustment slide block rotatably around its axis, and being provided with one between described rotary driving force reception head and the adjustment slide block can be around the rotary spacing pin of described axis rotation.
4. drive assembly of photosensitive drum according to claim 3 is characterized in that:
Described rotary driving force receives head and has comprised that outer end, pars intermedia and axial region, this axial region are provided with the pin-and-hole that passes for described rotary spacing pin; The center of described outer end is formed with the spherical of indent, is formed with outwardly directed first dog, second dog around this spherical and by first dog and separated first tangent plane of second dog and second tangent plane; The surface of described first dog has first occlusal surface, first inclined-plane and second inclined-plane, the surface of described second dog has second occlusal surface, the 3rd inclined-plane and the 4th inclined-plane, wherein, first inclined-plane, second inclined-plane, the 3rd inclined-plane and the 4th inclined-plane all are formed on the neighboring that rotary driving force receives head.
5. drive assembly of photosensitive drum according to claim 4 is characterized in that:
Described first dog and second dog, described first tangent plane and second tangent plane receive the axis formation center symmetry of head respectively about rotary driving force.
6. drive assembly of photosensitive drum according to claim 5 is characterized in that:
Described adjustment slide block is made of a pedestal and the boss that is formed on the pedestal, this boss inside has the through hole of axial perforation, the diameter of this through hole receives the diameter of an axial region greater than described rotary driving force, and receives the diameter of a pars intermedia less than described rotary driving force; First side of described pedestal has outwardly directed first spacing block set, and second side has outwardly directed second spacing block set; Have the groove that holds described rotary spacing pin on the bottom surface of described pedestal, this groove has first positive stop and second positive stop that are oppositely arranged around being formed at around the described through hole in this groove.
7. according to each described drive assembly of photosensitive drum in the middle of the claim 2 to 6, it is characterized in that:
Has the transmission gear ring on the outer circumference surface of described gear, the gear cavity that gear inside is provided with dividing plate perpendicular to axial direction and is positioned at the dividing plate top, the center of this dividing plate has a spacing hole, is evenly distributed with some the convex tendons that extend vertically on the circumferential side wall of gear cavity;
Described adjusting lever is made of top, bar portion and jump ring, has the chute that radially connects on this top, and described spacing base plate is fastened on this jump ring;
Described spacing base plate is positioned at the inboard of described dividing plate, described top is positioned at the outside of described dividing plate, described bar portion is passed from described spacing hole, and the width of this spacing hole equates substantially that with the cross-sectional width of described bar portion the length of this spacing hole is greater than the cross-section lengths of this bar portion.
8. drive assembly of photosensitive drum according to claim 7 is characterized in that:
The xsect of described spacing hole and described bar portion is cydariform.
9. drive assembly of photosensitive drum according to claim 7 is characterized in that:
Described elastic support member is the screw type compression spring.
10. drive assembly of photosensitive drum according to claim 7 is characterized in that:
Described axial limiting parts are spacing base plate, and this spacing base plate is provided with the blocked hole that passes for described jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100404470A CN101907858B (en) | 2009-06-16 | 2009-06-16 | Photosensitive drum driving assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100404470A CN101907858B (en) | 2009-06-16 | 2009-06-16 | Photosensitive drum driving assembly |
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| CN101907858A true CN101907858A (en) | 2010-12-08 |
| CN101907858B CN101907858B (en) | 2012-01-04 |
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