CN102866609B - Photosensitive drum driving head and image forming device driving mechanism - Google Patents
Photosensitive drum driving head and image forming device driving mechanism Download PDFInfo
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- CN102866609B CN102866609B CN201210232590.1A CN201210232590A CN102866609B CN 102866609 B CN102866609 B CN 102866609B CN 201210232590 A CN201210232590 A CN 201210232590A CN 102866609 B CN102866609 B CN 102866609B
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Abstract
The invention relates to a photosensitive drum driving head, which comprises a drum flange, a drum shaft and a boss, wherein the drum flange is arranged on an end part of a photosensitive drum and is connected with the photosensitive drum; the drum shaft axially extends out from the end part of the drum flange; the boss axially extends out from an end face of the drum shaft and is matched with a groove in an image forming device driving head; the side wall of the boss is provided with three straight convex teeth which radially extend along the boss and are matched with power transmission parts; the straight convex teeth are perpendicular to the drum shaft, extend along the axis of the photosensitive drum and are provided with engagement surfaces; the engagement surfaces are formed by longitudinally cutting corners from end faces of the straight convex teeth; and at least one engagement surface is engaged with an edge on a distorted oblique plane of the groove to transfer power. The technical problem of high requirement on accuracy of a distortion angle due to matching of the distorted boss and the distorted groove is solved.
Description
Technical field
The present invention relates to a kind of photosensitive drum driving head and image processing system driving mechanism.
Background technology
Conventional images forms on device and is provided with motor, image processing system driving head and handle box, and handle box is removably mounted in image processing system, is provided with photosensitive drums and the photosensitive drum driving head that is fixedly connected on photosensitive drums end on handle box; In the image processing system course of work, motor produces power, and is coordinated power is passed to handle box by image processing system driving head and photosensitive drum driving head, makes the photosensitive drums rotation on handle box.
As shown in Figure 1, 2, one end of photosensitive drums 7 is provided with photosensitive drum driving head regularly, and this photosensitive drum driving head comprises convex coupling shaft 17, is provided with twisted shape boss 17a on this convex coupling shaft 17, and boss 17a comprises terminal part 17a1; The rotation center of convex coupling shaft 17 overlaps with the rotation center of photosensitive drums 7; On spill coupling shaft 18, comprise twisted shape groove 18a, on groove 18a, be provided with bottom surface 18a1.
In the image processing system course of work, image processing system driving head 18 is accepted the dynamic rotation from motor, convex coupling shaft 17 engages with image processing system driving head 18, and rotary power passes to convex coupling shaft 17 by image processing system driving head 18, and finally makes photosensitive drums 7 rotate.In the time that convex coupling shaft 17 engages with image processing system driving head 18, twisted shape boss 17a on convex coupling shaft 17 inserts in the twisted shape groove 18a on image processing system driving head 18, terminal surface 17a1 and bottom surface 18a2 are just right, and the rotary power on image processing system driving head 18 passes to convex coupling shaft 17 by distortion boss 17a with engaging of groove 18a.
Be respectively as shown in Figure 3,4 twisted shape boss 17a and the twisted shape groove 18a cross section view when not rotating and rotating; As seen from the figure, the cross section of twisted shape boss 17a and twisted shape groove 18a is triangle (as equilateral triangle), and the size of triangle boss 17a is less than the size of triangular groove 18a.As shown in Figure 3, in boss 17a is inserted into groove 18a but while not rotating with groove 18a, the convex coupling shaft turning axle X1 in photosensitive drums does not overlap with the turning axle X2 of image processing system driving head.As shown in Figure 4, in the time that boss 17a engages with groove 18a and rotate with groove 18a, three drift angle 17a2 of triangle boss 17a engage with upper leg-of-mutton three seamed edges of groove 18a, and from groove 18a transferring power to convex coupling shaft 17a; Now, the convex coupling shaft turning axle X1 in photosensitive drums overlaps with the turning axle X2 of image processing system driving head, guarantees twisted shape boss 17a and twisted shape groove 18a stable drive in the course of the work; In figure, R0 is the turning-circle diameter of tri-drift angle 17a2 of boss 17a, R1 is the inscribed circle diameter of triangular groove 18a, R2 is three drift angle turning-circle diameters of groove 18a, for realizing the power transmission of convex coupling shaft 17a and image processing system driving head 18a, R0, R1, R2 need meet the following conditions: R1<R0<R2.
Be illustrated in figure 5 the another kind of embodiment of prior art, in this embodiment, twisted shape boss 17a and twisted shape groove 18a are quadrilateral (as square), and quadrilateral boss 17a engages with quadrilateral groove 18a, and transferring power.
In prior art, image processing system driving head can also adopt mode as shown in Figure 6, as shown in Figure 6, one end of image processing system driving head 28 is provided with twisted shape groove 28a, on groove 28a, be provided with bottom surface 28a1 and boss 28a2, boss 28a2 is positioned at distortion triangular groove 28a center (rotation center of boss overlaps with the turning axle X2 of image processing system driving head), its height is basic identical with the degree of depth of groove 28a, and described boss can be taper.
Conventional images forms on a kind of handle box using on device and generally uses the above-mentioned photosensitive drums with photosensitive drum driving head, on described handle box, at least comprise: be used to form electrostatic latent image, with the photosensitive drums of above-mentioned photosensitive drum driving head, by the developer of described developing electrostatic latent image with described developer is sent to the developer roll of photosensitive drums.When described handle box is installed to and uses on image processing system, receive from the rotary power from motor on image processing system by above-mentioned image processing system driving head, make described photosensitive drums and developer roll rotation.
There is following shortcoming in this power transmission structure of prior art:
1. when twisted shape boss and twisted shape engagement, on boss and groove, the distortion angle accuracy requirement of warp surface is higher.When the warp surface on warp surface and groove on boss produces distortion angle when inconsistent because of manufacturing accuracy problem, warp surface on boss just produces point-to-area contact with the warp surface on groove, the warp surface of one of them will deform in the engagement process of boss and groove, thereby cause the convex coupling shaft turning axle X1 in photosensitive drums not overlap with the turning axle X2 of image processing system driving head, affect the stationarity that power transmits; For avoiding the problems referred to above, just require the warp surface manufacturing accuracy of boss and groove very high, increase like this manufacturing cost, bring problems such as manufacturing difficulty simultaneously.
2. the polygonal shape of boss and groove is difficult to processing, and the manufacturing accuracy of boss and groove is had relatively high expectations.Take equilateral triangle as example, the accuracy requirement of equilateral triangle boss and groove is higher, the precision of guarantee triangle center position, otherwise boss during with engagement the convex coupling shaft turning axle X1 in photosensitive drums will there is with the turning axle X2 of image processing system driving head the phenomenon that do not overlap, thereby cause transmission not steady; In addition, in the engagement process of boss and groove, on boss, leg-of-mutton drift angle, because wanting transferring power, therefore easily deforms because of stressed, and long-term work is vulnerable to wearing and tearing or destroys; And leg-of-mutton three drift angles in the course of the work, play stressed rotation and supporting and location effect simultaneously, therefore wearing and tearing or destroy after triangle with the engagement process of groove in, the phenomenon that easily generation center X1, X2 do not overlap, thereby affect the stationarity of transmission, therefore for guaranteeing precision and the stationarity of transmission, material hardness and the wearing quality of diabolo boss are had relatively high expectations; Same, the position contacting on the seamed edge of triangular groove, with three drift angles of boss is also vulnerable to destroy or wearing and tearing in the course of the work, and hardness and the wearing quality of diabolo groove are had relatively high expectations equally.
Summary of the invention
The invention provides a kind of photosensitive drum driving head and image apparatus for converting driving mechanism, the high technical matters of distortion angle accuracy requirement coordinating because twisted shape boss and twisted shape are recessed to solve existing photosensitive drum driving head.
In order to solve above technical matters, the technical scheme that the present invention takes is:
A kind of photosensitive drum driving head, coordinate transmission of drive force with image processing system driving head, described image processing system driving head comprises: the twisted shape groove with triangular cross section, be arranged on the power transmissioning part in three drift angles of described twisted shape groove, power transmissioning part comprises distortion inclined-plane, the top on described distortion inclined-plane comprises the seamed edge engaging with described photosensitive drum driving head, it is characterized in that, described photosensitive drum driving head comprises: be arranged on that photosensitive drums end is connected with photosensitive drums bulging flange, the bulging axle axially stretching out from drum flange end, the boss coordinating with image processing system driving head upper groove axially stretching out from described bulging axial end, on the sidewall of described boss, be provided with three the straight double wedges that mate with described power transmissioning part that radially extend along boss, described straight double wedge perpendicular to described bulging axle and prolong described photosensitive drums axis direction extend, on described straight double wedge, be provided with the field of conjugate action, the described field of conjugate action longitudinal corner cut of the end face of described straight double wedge of serving as reasons forms, wherein have at least a described field of conjugate action to engage transferring power with the seamed edge on described groove distortion inclined-plane.
Described straight double wedge also comprises: the first side and the second side; Described the first side is parallel to each other with described the second side and is vertical with the end face of described bulging axle.
Described straight double wedge also comprises: the first side and the second side; Described in described the first side, the end face of drum axle is vertical, and described the second side is for being obliquely installed, and the width of described straight double wedge increases to the root direction of described straight double wedge gradually along the end of described straight double wedge.
Adopting after technique scheme, the double wedge using photosensitive drum driving head as power transmissioning part is arranged to straight, has solved the high technical matters of distortion angle accuracy requirement that existing photosensitive drum driving head coordinates because twisted shape boss and twisted shape are recessed.
Accompanying drawing explanation
Fig. 1 is the photosensitive drums schematic perspective view with photosensitive drum driving head in prior art.
Fig. 2 is the schematic perspective view of prior art camber coupling shaft and spill coupling shaft.
Fig. 3 is prior art twisted shape projection and the twisted shape groove cross section view while not rotating.
Cross section view when Fig. 4 is prior art twisted shape projection and the rotation of twisted shape groove.
Fig. 5 is the quadrilateral that is shaped as of the another kind of projection of prior art and groove.
Fig. 6 is the schematic diagram that the center of prior art further groove is provided with boss.
Fig. 7 is the schematic perspective view of image processing system driving head.
Fig. 8 is the vertical view of image processing system driving head.
The schematic perspective view of the photosensitive drum driving head that Fig. 9 adopts for embodiment mono-.
The force analysis schematic diagram of the photosensitive drum driving head that Figure 10 adopts for embodiment mono-and the assembling of image processing system driving head.
The stereographic map of the photosensitive drum driving head that Figure 11 adopts for embodiment bis-.
The front elevation of the photosensitive drum driving head that Figure 12 adopts for embodiment bis-.
Photosensitive drum driving head and image processing system driving head assembling plan view that Figure 13 adopts for embodiment bis-.
Photosensitive drum driving head and image processing system driving head assembling schematic diagram that Figure 14 adopts for embodiment bis-.
Cross section force analysis schematic diagram after the image processing system driving head that Figure 15 adopts for embodiment bis-engages with photosensitive drum driving head.
The schematic perspective view of the photosensitive drum driving head that Figure 16 adopts for embodiment tri-.
The schematic perspective view of the photosensitive drum driving head that Figure 17 adopts for embodiment tetra-.
Figure 18 is the partial enlarged drawing of boss of the present invention.
Figure 19 is the front elevation of Figure 18 along B direction.
Figure 20 is the vertical view of boss of the present invention.
The schematic perspective view of the photosensitive drum driving head that Figure 21 adopts for embodiment five.
The vertical view of the photosensitive drum driving head that Figure 22 adopts for embodiment five.
The photosensitive drum driving head being adopted for embodiment five as Figure 23 and the assembling plan view of image processing system driving head.
The right view of the photosensitive drum driving head that Figure 24 (a) adopts for embodiment five and the assembling of image processing system driving head.
Figure 24 (b) is the sectional view of Figure 24 (a) along C direction.
Figure 25 is the sectional view of Figure 23 along A direction.
Figure 26 is the sectional view of Figure 23 along B direction.
Figure 27 is the photosensitive drum driving head part-structure schematic perspective view that adopts double wedge end face location in embodiment five.
The schematic perspective view of the photosensitive drum driving head that Figure 28 adopts for embodiment six.
Figure 29 is the right view of Figure 28.
Figure 30 is the photosensitive drum driving head part-structure schematic perspective view that adopts double wedge end face location in embodiment six.
Figure 31 is the schematic diagram that adopts cambered surface to connect between straight double wedge in embodiment six.
Figure 32 is the photosensitive drum driving head part-structure schematic perspective view that is provided with anti-delinking part in embodiment six.
Figure 33 is the cut-away view after the photosensitive drum driving head that is provided with anti-delinking part in embodiment six engages with image processing system driving head.
Embodiment
Embodiment mono-
Fig. 7 and Fig. 8 are respectively schematic perspective view and the vertical view of image processing system driving head, known by figure, image processing system driving head 20 comprises: have the groove 11 of equilateral triangle xsect, be arranged on leg-of-mutton three drift angles and have twist structured power transmissioning part 11a and the limiting section 11b that is positioned at position, Atria limit; Power transmissioning part 11a comprises distortion inclined-plane 11a1 and imports inclined-plane 11a2.Vertical view is as shown in Figure 7 known, and distortion inclined-plane 11a1 is sightless, and the angle of distortion inclined-plane 11a1 and groove floor is less than 90 °, and the top of distortion inclined-plane 11a1 comprises seamed edge 11a3; It is visible importing inclined-plane 11a2, and the angle that imports inclined-plane 11a2 and groove floor is greater than 90 °.Image processing system driving head is connected transferring power with the motor in image processing system.
Described image processing system driving head 20 is identical with the image processing system driving head of prior art.
The schematic perspective view of the photosensitive drum driving head that Fig. 9 adopts for embodiment mono-, known by figure, photosensitive drum driving head comprises: be arranged on the bulging flange 2 that photosensitive drums 1 end is connected with photosensitive drums 1, drum flange 2 is for passing to photosensitive drums 1 by the driving force of reception, from drum flange 2 end axis to the bulging axle 3 stretching out, drum axle 3 is for rotatably supporting photosensitive drums 1 in the handle box course of work, stretch out from drum axle 3 end face axial, for receive the boss 4 of driving force from image processing system driving head 20, on the sidewall 4b of boss 4, be provided with the first double wedge 5a radially extending along boss 4, wherein the first double wedge 5a is arranged on boss sidewall 4b obliquely.
In driving force transmittance process, the the first double wedge 5a being positioned on photosensitive drum driving head boss 4 engages transferring power with arbitrary power transmissioning part 11a, the limiting section 11b of the boss sidewall 4b of photosensitive drum driving head and image processing system driving head groove is at three point of contact P1, the tangent engagement of P2 and P3 place, thus realize the center superposition centering between photosensitive drum driving head and image processing system driving head 20 in driving force transmittance process.
Figure 10 is the force analysis schematic diagram of photosensitive drum driving head and the assembling of image processing system driving head, " A " is the sense of rotation of image processing system driving head, the power that image processing system driving head produces the first double wedge 5a is F11, F11 is decomposed into normal force F12 and radial force F14, F15 is the power that image processing system driving head produces at P1 place, point of contact, F13 is the power that image processing system driving head produces at P2 place, point of contact, and P3 place does not stress, and to sum up can obtain following force analysis formula:
Obtain F13=2F14,
be that image processing system driving head or photosensitive drum driving head are subject at P1 place
the power of size, is subject to the power of 2F14 size at P2 place.
Because photosensitive drum driving head engages in the process of transmission power with image processing system driving head, there are each other wearing and tearing, double wedge using photosensitive drum driving head as power transmissioning part in this programme be arranged on diverse location place as the boss face of cylinder of location division, exert all one's strength propagation function and positioning function can not be affected each other because of wearing and tearing.
Embodiment bis-
As shown in Figure 11 and Figure 12, be respectively stereographic map and the front elevation of the photosensitive drum driving head that the present embodiment adopts, photosensitive drum driving head and image processing system driving head assembling plan view that Figure 13 adopts for the present embodiment, image processing system driving head described in the present embodiment adopts the image processing system driving head of mentioning in embodiment mono-, is no longer repeated in this description.Known by figure, photosensitive drum driving head comprises: the bulging flange 2 that is fixedly connected on photosensitive drums 1 end, from drum flange 2 end axis to extending, for rotatably support the bulging axle 3 of photosensitive drums 1 in the handle box course of work, from drum axle 3 end face axial stretch out, for receive the cylindrical boss 4 of driving force from image processing system driving head 20, on the sidewall 4b of cylindrical boss 4, be provided with along cylindrical boss 4 radially extend and with a pair of double wedge 4a that in image processing system driving head, any two power transmissioning parts coordinate, it is upper that double wedge 4a is arranged on cylindrical boss 4 sidewall 4b obliquely, is provided with field of conjugate action 4a1 on double wedge 4a, and the area of field of conjugate action 4a1 is 5-20mm
2between, with 7-16mm
2for the best, when power is transmitted, field of conjugate action 4a1 engages transferring power with the power transmissioning part inwall in image processing system driving head, can reduce the wearing and tearing between described photosensitive drum driving head and image processing system driving head by field of conjugate action 4a1 is set on double wedge 4a, angle β between the rotation of double wedge 4a and photosensitive drum driving head is chosen as between 3-40 °, take 25-30 ° as best, guarantee when photosensitive drum driving head can successfully engage with image processing system driving head also to prevent that photosensitive drum driving head is deviate from from image processing system driving head in power transmission process, makes transferring power stable between image processing system driving head and photosensitive drum driving head, the length that double wedge 4a radially from sidewall 4b is L1, and the scope of L1 is between 2-5mm, with 2.3-3.3mm the best, guarantees that photosensitive drum driving head has enough moment transferring power, minimum angle α standard angle between two double wedge 4a is 120 °, the angle high limit of tolerance generally will be in 2 °, this programme barrel shaped tooth 4a can allow the manufacturing accuracy error of θ size, the scope of θ is between 2 °-10 °, with 2-4 ° of the best, if θ is angular error, the minimum angle α size between two double wedge 4a becomes α+θ, now two double wedge 4a can not engage with the power transmissioning part 11a of groove 11 simultaneously, the double wedge that is positioned at the upstream of sense of rotation first engages with the power transmissioning part on image processing system driving head, play buffer action, if double wedge 4a has the foozle size of θ angle size along sense of rotation downstream, θ can make double wedge produce the field of conjugate action of a gradual change, in the power transmissioning part 11a of double wedge 4a and groove engagement process for double wedge 4a plays buffer action, can reduce the damage between image processing system driving head and photosensitive drum driving head, be positioned at two boss faces of cylinder between double wedge 4a and contact the location of realizing photosensitive drum driving head with the limiting section 11b of image processing system driving head.Fillet is also set in double wedge 4a and junction, the boss face of cylinder to be concentrated to reduce stress.And bulging flange 3, drum axle 3, cylindrical boss 4 and double wedge 4a in above-mentioned photosensitive drum driving head can be the moulding of same material integral production, also can have buffer structure, drum can also be provided with the drum gear 2a that driving force is passed to other elements (as developing element etc.) on flange 2.
Figure 14 is photosensitive drum driving head and image processing system driving head assembling schematic diagram, Figure 15 is the cross section force analysis schematic diagram after image processing system driving head engages with photosensitive drum driving head, known by figure, the limiting section 11b of photosensitive drum driving head and image processing system driving head groove is at three point of contact P4, the tangent engagement of P5 and P6 place, " A " is the sense of rotation of image processing system driving head, image processing system driving head produces to photosensitive drum driving head power F24 and the F56 that size is identical, the moment of torsion bearing at photosensitive drum driving head is embodiment mono-moment of torsion twice, F24 is the power that size is identical with F56 and the F11 in embodiment mono-, F24 is decomposed into normal force F2 and radial force F4, F56 is decomposed into normal force F5 and radial force F6, F2 is identical with the F12 size in embodiment mono-with F5, F4 is identical with F14 size of the prior art with F6, suppose that F1 is the power that image processing system driving head produces at P5 place, point of contact, F3 is the power that image processing system driving head produces at P6 place, point of contact, P4 does not stress, to sum up can obtain following force analysis formula:
obtain F1=2F4 and F3=0, be image processing system driving head and photosensitive drum driving head are subject to 2F4 size power at P5 place, stressed at P6 place is 0, reduce with respect to embodiment mono-this programme stress point, the wearing and tearing at point of contact P5 and P6 place of image processing system driving head and photosensitive drum driving head are reduced, the position stability of photosensitive drum driving head is improved, thereby make the transmission of driving force more steady.
A kind of image apparatus for converting driving mechanism, comprise the image processing system driving head 20 described in photosensitive drum driving head and the background technology of describing in above-described embodiment, be that image processing system driving head 20 comprises: there is the groove 11 of equilateral triangle xsect, be arranged on leg-of-mutton three drift angles and there is twist structured power transmissioning part 11a and the limiting section 11b that is positioned at position, Atria limit.Image processing system driving head is connected transferring power with the motor in image processing system.
Embodiment tri-
Those of ordinary skill in the art is easy to just can expect, in two double wedges, one is set to helical teeth, another is straight-tooth, also can reach same technique effect, the schematic perspective view of the photosensitive drum driving head that Figure 16 adopts for the present embodiment, is known by figure, helical teeth 4a is arranged on the sidewall 4b of boss obliquely, and straight-tooth 4c is vertically arranged on sidewall 4b.
Embodiment tetra-
In the time that the rotating speed of image processing system is lower, the torque of image processing system driving head is less, two double wedges of photosensitive drum driving head can be all arranged to straight-tooth, the schematic perspective view of the photosensitive drum driving head adopting for the present embodiment as shown in figure 17,4c is the double wedge of photosensitive drum driving head, and the manufacturing accuracy of photosensitive drum driving head further reduces.
In the present invention, the upper setting of double wedge 4a in above-described embodiment also has field of conjugate action 4a1, and the area of field of conjugate action 4a1 is 5-20mm
2between, with 7-16mm
2for the best, when power is transmitted, field of conjugate action 4a1 engages transferring power with the power transmissioning part inwall in image processing system driving head, can reduce the wearing and tearing between described photosensitive drum driving head and image processing system driving head by field of conjugate action 4a1 is set on double wedge 4a; Described double wedge also comprises: drift angle 4a4, and two plane 4a2 that are parallel to each other that are connected with described double wedge sidewall and 4a3, and angle between plane 4a2 and 4a3 and photosensitive drums axis is β; The described field of conjugate action also comprises: straight flange s1, s2 and hypotenuse s3; Described straight flange s1 is parallel with straight flange s2, the angle between hypotenuse s3 and photosensitive drums axis
between 5-50 °, take between 10-40 ° as best, straight flange s1 and photosensitive drum driving head center are between 0-90 ° to the angle γ between the line of the drift angle 4a4 of double wedge, take 25-45 ° as the best, as shown in Figure 18-20, " B " direction shown in Figure 18 is parallel with the radially bearing of trend of boss.
Those of ordinary skills are from the present invention, be easy to just can expect, also double wedge can be arranged to symmetrical three, these three double wedges or be all set to tilt double wedge be all set to vertical double wedge or one of them be set to tilt double wedge, two other is set to vertical double wedge or one of them is set to vertical double wedge, and two other is set to the double wedge tilting; Also can reach identical technique effect.The double wedge of described inclination refers to that on the sidewall that is arranged on boss of described double wedge inclination, described vertical double wedge refers on the sidewall that is arranged on boss that described double wedge is vertical.
Those of ordinary skills, from the present invention, are easy to just can expect, the sidewall of described boss and the described boss face of cylinder are same parts.
Embodiment five
Identical with above-described embodiment of the image processing system driving head adopting in the present embodiment.
Schematic perspective view and the vertical view of this photosensitive drum driving head adopting for the present embodiment of Figure 21 and Figure 22, photosensitive drum driving head comprises: the bulging flange 200 that is fixedly connected on photosensitive drums 1 end, from drum flange 200 end axis to extending, for rotatably support the bulging axle 300 of photosensitive drums 1 in the handle box course of work, stretch out from drum axle 300 end face axial, for receive the cylindrical boss 400 of driving force from image processing system driving head 20, on the sidewall 400a of cylindrical boss 400, be provided with along cylindrical boss 400 and radially extend, and three straight double wedges 500 that coordinate with the power transmissioning part 11a of image processing system driving head, angle between described straight double wedge 500 and photosensitive drums axis is 0 degree, cylindrical boss 400 is greater than straight double wedge 500 along the length of extending on photosensitive drums axial direction along the length of extending on photosensitive drums axial direction.
If Figure 23 is the assembling plan view of photosensitive drum driving head and image processing system driving head, Figure 24 (a) is the right view of photosensitive drum driving head and the assembling of image processing system driving head, Figure 24 (b) is the sectional view of Figure 24 (a) along C direction, and Figure 25 and Figure 26 are respectively the sectional view of Figure 23 along A and B direction.Known by figure, described straight double wedge 500 comprises: field of conjugate action 500a, the first side 500b1 and the second side 500b2; The first side 500b1 be parallel to each other with the second side 500b2 and with drum axle 300 end face vertical, and with photosensitive drum shaft line parallel; Field of conjugate action 500a with drum axle 300 end face vertical and with photosensitive drum shaft line parallel, mis-cut angle γ between field of conjugate action 500a and the first side 500b1 and 11a1(Fig. 7-8, distortion inclined-plane in groove 11) gradient match, contact area when increase field of conjugate action 500a engages transferring power with distortion inclined-plane 11a1, mis-cut angle γ is between 0-90 °, take 20-45 ° as best, as shown in Figure 21-22.When straight double wedge 500 engages transferring power with image processing system driving head 20, the directly root of double wedge 500 and seamed edge 11a3(Fig. 7-8 of distortion inclined-plane 11a1) engage i.e. line on field of conjugate action 500a and seamed edge 11a3(Fig. 7-8) engage transferring power; The area of described field of conjugate action 500a is 2-20mm
2, with 3-10mm
2for the best, as Figure 23-26.For boss 400 is more easily inserted in groove 11, boss 400 is arranged to taper, and circle outside diameter d 1 in the cross section of boss end is less than the cross section circle outside diameter d 2 of boss root, as Figure 25.As Figure 26, because the inner structure of image processing system driving head 20 is reversed in a certain direction, distortion inclined-plane 11a1 in groove 11 and importing 11a2(Fig. 7-8, inclined-plane) tilt, so double wedge 500 inserts the size of the width W in groove and is inversely proportional to the size of height L, be that width is larger, highly less; The width W of double wedge 500 is directly proportional to its intensity, and width is larger, and intensity is stronger, highly less, and double wedge is more easily deviate from from groove; The scope of height L is 1.0-8.0mm, and take 2.0-4.0mm as best, the scope of width W is 1.0-5.0mm, take 1.5-4.0mm as best, to reach the requirement of strength while both meeting transferring power, guarantees that again double wedge 500 is difficult for deviating from from groove.
In the present embodiment, as shown in figure 25, photosensitive drum driving head contacts and carries out axial location with the bottom surface of groove 11 with the end face that the axial location of image processing system driving head can be boss 400, also can be the end face of double wedge 500 and 11a2(Fig. 7-8, importing inclined-plane in groove 11) contact and carry out axial location, Figure 27 is the photosensitive drum driving head part-structure schematic perspective view that adopts double wedge end face location, known by figure, cylindrical boss 400 is less than straight double wedge 500 along the length of extending on photosensitive drums axial direction along the length of extending on photosensitive drums axial direction.
The described field of conjugate action longitudinal corner cut of the end face of described straight double wedge of serving as reasons forms, and the longitudinal direction of described straight double wedge is parallel with the axis direction of described photosensitive drums.
The root of described straight double wedge is the part that described straight double wedge is connected with described bulging shaft end.
Embodiment six
The schematic perspective view of the photosensitive drum driving head that Figure 28 adopts for the present embodiment, Figure 29 is the right view of Figure 28, known by figure, the difference of the photosensitive drum driving head in the photosensitive drum driving head that the present embodiment adopts and embodiment five is that the second side 500b2 of straight double wedge is a progressive inclined-plane of being arranged to along the end 500b3 of described straight double wedge to the root direction of described straight double wedge, and other structures are all identical; Angle between the second side 500b2 and the first side 500b1 is ω, and the scope of ω is between 3-45 °, take 20-30 ° as best.In embodiment five, the width W of inserting in groove 11 due to double wedge 500 is inversely proportional to height L, has following technical matters: width W is larger, and double wedge intensity is stronger, and L is less for height, and double wedge is more easily deviate from from groove, otherwise width W is less, double wedge intensity is less, and L is larger for height, and double wedge is more not easy to deviate from from groove, again because the root of straight double wedge 500 engages transferring power (shown in Figure 26) with the seamed edge 11a3 of the distortion inclined-plane 11a1 in groove 11, just the requirement of strength of the root position to straight double wedge 500 is higher for this, the structure of the second side 500b2 in the present embodiment just in time can address the above problem, reason is as follows: because the second side 500b2 is the progressive inclined-plane of an end along described straight double wedge to the root direction of described straight double wedge, the end width that is straight double wedge 500 is less than root width, the end width that reduces straight double wedge 500 can increase the height of described straight double wedge insertion groove 11, double wedge is not easy to deviate from from groove, increase root width and can increase the intensity of root, thereby make to insert under the medium-altitude condition of described groove meeting described straight double wedge, increased again the intensity of described straight double wedge root.
In the present embodiment, photosensitive drum driving head contacts and carries out axial location with the bottom surface of groove 11 with the end face that the axial location of image processing system driving head can be boss 400, also can be that the end face 500b3 of double wedge 500 and the bottom surface (Fig. 7-8) of groove 11 contact and carry out axial location, as shown in figure 30, Figure 30 is the photosensitive drum driving head part-structure schematic perspective view that adopts double wedge end face location, known by figure, cylindrical boss 400 is less than straight double wedge 500 along the length of extending on photosensitive drums axial direction along the length of extending on photosensitive drums axial direction.Figure 31 is the schematic diagram that adopts cambered surface to connect between straight double wedge, known by figure, the end face of the boss 400 between straight double wedge 500 is to the cambered surface of drum direction of principal axis depression, between 3 straight double wedges 500, adopt cambered surface to connect, the stress that can reduce described boss and described straight double wedge junction is concentrated, and with described straight double wedge junction, the phenomenon rupturing occurs with boss described in reaching while preventing that described straight double wedge is stressed.
Figure 32 and Figure 33 are respectively the cut-away view after the photosensitive drum driving head that is provided with the photosensitive drum driving head part-structure schematic perspective view of anti-delinking part and is provided with anti-delinking part engages with image processing system driving head, once solve for entering the problem that described straight double wedge is easily deviate from from described groove, near the position of described straight double wedge end face, anti-delinking part 500a2 is set at field of conjugate action 500a, known by figure, anti-delinking part 500a2 stretches out perpendicular to field of conjugate action 500a, and anti-delinking part 500a2 is the outward extending arcuation body in top or the hemispherical body from field of conjugate action 500a.When described photosensitive drum driving head engages transferring power with described image processing system driving head, anti-delinking part 500a2 can engage with the distortion inclined-plane 11a1 in groove 11, if described photosensitive drum driving head in axial direction has the trend of deviating from, anti-delinking part 500a2 can with groove 11 in the butt of distortion inclined-plane 11a1, make photosensitive drum driving head and image processing system driving head produce the pulling force of axial direction, prevent that photosensitive drum driving head from deviating from from described image processing system driving head.
Claims (2)
1. a photosensitive drum driving head, coordinate transmission of drive force with image processing system driving head, described image processing system driving head comprises twisted shape groove and power transmissioning part, power transmissioning part comprises distortion inclined-plane, described distortion inclined-plane comprises the seamed edge engaging with described photosensitive drum driving head, it is characterized in that, described photosensitive drum driving head comprises: be arranged on that photosensitive drums end is connected with photosensitive drums bulging flange, the bulging axle axially stretching out from drum flange end, that axially stretch out and boss described twisted shape groove fit from described bulging axial end, on the sidewall of described boss, be provided with three the straight double wedges that mate with described power transmissioning part that radially extend along boss, described straight double wedge perpendicular to described bulging axle and prolong described photosensitive drums axis direction extend, on described straight double wedge, be provided with the field of conjugate action, the described field of conjugate action longitudinal corner cut of the end face of described straight double wedge of serving as reasons forms, and wherein has at least a described field of conjugate action to engage transferring power with the seamed edge on described groove distortion inclined-plane.
2. photosensitive drum driving head as claimed in claim 1, is characterized in that, the root of described straight double wedge engages transferring power with the seamed edge on described groove distortion inclined-plane.
3
.photosensitive drum driving head as claimed in claim 1, is characterized in that, described straight double wedge also comprises: the first side and the second side; Described the first side is parallel to each other with described the second side and is vertical with the end face of described bulging axle.
4
.photosensitive drum driving head as claimed in claim 1, is characterized in that, described straight double wedge also comprises: the first side and the second side; Described in described the first side, the end face of drum axle is vertical, and described the second side is for being obliquely installed, and the width of described straight double wedge increases to the root direction of described straight double wedge gradually along the end of described straight double wedge.
5
.photosensitive drum driving head as claimed in claim 4, is characterized in that, described the second side is to be arranged to a progressive inclined-plane to the root direction of described straight double wedge along the end of described straight double wedge.
6
.photosensitive drum driving head as claimed in claim 4, is characterized in that, described the first side and the angle of the second side be between 20 ~ 30 °.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232590.1A CN102866609B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
| PCT/CN2012/086505 WO2014005403A1 (en) | 2012-07-05 | 2012-12-13 | Photosensitive drum driving head and image forming device driving mechanism |
| AU2012382294A AU2012382294B2 (en) | 2012-07-05 | 2012-12-13 | Photosensitive drum driving head and driving mechanism of image forming apparatus |
| JP2015518787A JP5935023B2 (en) | 2012-07-05 | 2012-12-13 | Photosensitive drum drive head and drive mechanism of image forming apparatus |
| RU2015103674A RU2599597C9 (en) | 2012-07-05 | 2012-12-13 | Driven head of photosensitive drum and drive of imaging device |
| EP12868927.0A EP2703893B1 (en) | 2012-07-05 | 2012-12-13 | Photosensitive drum driving head and image forming device driving mechanism |
| CA2839969A CA2839969C (en) | 2012-07-05 | 2012-12-13 | Photosensitive drum driving head and driving mechanism of image forming apparatus |
| ARP130102409A AR099246A1 (en) | 2011-07-05 | 2013-07-05 | PHOTOSENSIBLE DRUM DRIVING HEAD AND IMAGE FORMATION DRIVING MECHANISM |
| US13/972,739 US8886087B2 (en) | 2012-07-05 | 2013-08-21 | Photosensitive drum driving head and driving mechanism of image forming apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186826.8 | 2011-07-05 | ||
| CN201110186826 | 2011-07-05 | ||
| CN201210232590.1A CN102866609B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310173971.1A Division CN103226305B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102866609A CN102866609A (en) | 2013-01-09 |
| CN102866609B true CN102866609B (en) | 2014-06-25 |
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Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325068 Expired - Lifetime CN202677063U (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum drive head and imaging device drive mechanism |
| CN 201220324405 Expired - Lifetime CN202710924U (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
| CN201310173971.1A Expired - Fee Related CN103226305B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
| CN201210232587.XA Expired - Fee Related CN102866608B (en) | 2011-07-05 | 2012-07-05 | A kind of photosensitive drum driving head and image processing system driving mechanism |
| CN201210232590.1A Active CN102866609B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325068 Expired - Lifetime CN202677063U (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum drive head and imaging device drive mechanism |
| CN 201220324405 Expired - Lifetime CN202710924U (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
| CN201310173971.1A Expired - Fee Related CN103226305B (en) | 2011-07-05 | 2012-07-05 | Photosensitive drum driving head and image forming device driving mechanism |
| CN201210232587.XA Expired - Fee Related CN102866608B (en) | 2011-07-05 | 2012-07-05 | A kind of photosensitive drum driving head and image processing system driving mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (5) | CN202677063U (en) |
| AR (1) | AR099246A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2839969C (en) * | 2012-07-05 | 2017-11-07 | Zhuhai Seine Technology Co., Ltd. | Photosensitive drum driving head and driving mechanism of image forming apparatus |
| US8886087B2 (en) | 2012-07-05 | 2014-11-11 | Zhuhai Seine Technology Co., Ltd. | Photosensitive drum driving head and driving mechanism of image forming apparatus |
| JP6504449B2 (en) * | 2014-08-27 | 2019-04-24 | 株式会社リコー | Drive transmission device and image forming apparatus |
| CN105972103A (en) * | 2016-06-14 | 2016-09-28 | 昆山格兰德机器人科技有限公司 | Shaft hole coupler |
| CN108343641A (en) * | 2017-01-25 | 2018-07-31 | 珠海格力电器股份有限公司 | Quick-release connecting mechanism of impeller and fan motor and air conditioner thereof |
| JP7319130B2 (en) * | 2019-07-29 | 2023-08-01 | ファナック株式会社 | Rotation motion detector |
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| CN201110946Y (en) * | 2007-08-23 | 2008-09-03 | 珠海天威技术开发有限公司 | Imaging processing box for laser printer |
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| JP3839932B2 (en) * | 1996-09-26 | 2006-11-01 | キヤノン株式会社 | Process cartridge, electrophotographic image forming apparatus, electrophotographic photosensitive drum and coupling |
| AU3926597A (en) * | 1996-09-26 | 1998-04-02 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drum |
| JP3796364B2 (en) * | 1999-01-27 | 2006-07-12 | キヤノン株式会社 | Electrophotographic image forming apparatus |
| JP2002040875A (en) * | 2000-07-24 | 2002-02-06 | Canon Inc | Process cartridge |
| CN200965623Y (en) * | 2006-10-16 | 2007-10-24 | 特科技股份有限公司乌龙驹 | Driving Structure of Photosensitive Drum in Laser Printer |
| CN201054078Y (en) * | 2007-07-02 | 2008-04-30 | 珠海天威技术开发有限公司 | Imaging processing box for laser printer |
| CN201097112Y (en) * | 2007-08-29 | 2008-08-06 | 珠海天威技术开发有限公司 | Sensitiation drum and processing box |
| CN201174031Y (en) * | 2008-03-19 | 2008-12-31 | 珠海天威技术开发有限公司 | Driving force transmission member and processing box |
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| CN201965403U (en) * | 2010-11-09 | 2011-09-07 | 珠海赛纳打印科技股份有限公司 | Photosensitive drum driving head of driving force transmission mechanism for image forming device |
| CN201897693U (en) * | 2010-12-11 | 2011-07-13 | 珠海赛纳打印科技股份有限公司 | Driving force transmission mechanism and processing box of image forming device |
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| CN102087494B (en) * | 2011-01-14 | 2012-12-26 | 珠海天威飞马打印耗材有限公司 | Photosensitive drum drive assembly, photosensitive drum and processing cartridge |
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2012
- 2012-07-05 CN CN 201220325068 patent/CN202677063U/en not_active Expired - Lifetime
- 2012-07-05 CN CN 201220324405 patent/CN202710924U/en not_active Expired - Lifetime
- 2012-07-05 CN CN201310173971.1A patent/CN103226305B/en not_active Expired - Fee Related
- 2012-07-05 CN CN201210232587.XA patent/CN102866608B/en not_active Expired - Fee Related
- 2012-07-05 CN CN201210232590.1A patent/CN102866609B/en active Active
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- 2013-07-05 AR ARP130102409A patent/AR099246A1/en unknown
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| JP2003186348A (en) * | 2001-12-21 | 2003-07-04 | Canon Inc | Image forming apparatus and process cartridge |
| CN201110946Y (en) * | 2007-08-23 | 2008-09-03 | 珠海天威技术开发有限公司 | Imaging processing box for laser printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202710924U (en) | 2013-01-30 |
| CN103226305A (en) | 2013-07-31 |
| CN102866608A (en) | 2013-01-09 |
| CN102866608B (en) | 2015-11-25 |
| CN202677063U (en) | 2013-01-16 |
| CN102866609A (en) | 2013-01-09 |
| AR099246A1 (en) | 2016-07-13 |
| CN103226305B (en) | 2014-10-08 |
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Address after: 519075, Guangdong District, Xiangzhou, Zhuhai Avenue, No. 01, building 3883, 2 floor, 7 floor, B District, 02, 03, 04, 1, 2, 3, 4, 5, 05, Zhuhai Patentee after: Nasida Limited by Share Ltd Address before: 6, 519075 A District, 4 buildings, 63 North Pearl Road, Zhuhai, Guangdong Patentee before: Zhuhai Aipeike Science and Technology Co Ltd |
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