CN103912590A - Transmission device and electronic device - Google Patents

Transmission device and electronic device Download PDF

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Publication number
CN103912590A
CN103912590A CN201310002743.8A CN201310002743A CN103912590A CN 103912590 A CN103912590 A CN 103912590A CN 201310002743 A CN201310002743 A CN 201310002743A CN 103912590 A CN103912590 A CN 103912590A
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CN
China
Prior art keywords
axle sleeve
cylinder axis
hole
transmission device
described axle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310002743.8A
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Chinese (zh)
Inventor
李如东
张飞
王勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University Founder Group Co Ltd
Shenzhen Founder Microelectronics Co Ltd
Original Assignee
Peking University Founder Group Co Ltd
Shenzhen Founder Microelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peking University Founder Group Co Ltd, Shenzhen Founder Microelectronics Co Ltd filed Critical Peking University Founder Group Co Ltd
Priority to CN201310002743.8A priority Critical patent/CN103912590A/en
Publication of CN103912590A publication Critical patent/CN103912590A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a transmission device and an electronic device. The transmission device comprises a transmission shaft and a coupler, wherein the transmission shaft comprises a first cylindrical shaft, and the outer circumference surface of the first cylindrical shaft is provided with a cut surface; the coupler comprises a shaft sleeve which sleeve the first cylindrical shaft, the inner wall of the inner cavity of the shaft sleeve is formed by connecting a rectangular flat surface and an arc surface, and the cross section of the inner wall of the inner cavity of the shaft sleeve is an arc with a chord. When the shaft sleeve sleeves the first cylindrical shaft, the cut surface is matched with the rectangular flat surface to fix the first cylindrical shaft and the shaft sleeve, accordingly, to avoid relative motion between the coupler and the transmission shaft and further to prolong the service life of the transmission device and reduce the maintenance cost and the number of maintenance times.

Description

A kind of transmission device and electronic equipment
Technical field
The present invention relates to mechanical manufacturing field, relate in particular to a kind of transmission device and electronic equipment.
Background technique
Transmission device is made up of transmission shaft and coupling conventionally, as shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, wherein Fig. 1 a is the plan view of transmission shaft in prior art, Fig. 1 b is the left view of transmission shaft in prior art, Fig. 1 c is the plan view of transmission shaft in prior art, and the transmission shaft 10 ' of transmission device comprises the first cylinder axis 101 '.
As shown in Figure 2 a and 2 b, wherein Fig. 2 a is the left view of coupling in prior art, Fig. 2 b is the right elevation of coupling in prior art, the coupling 20 ' of transmission device comprises the axle sleeve 201 ' matching with described the first cylinder axis 101 ', axle sleeve 201 ' is a hollow cylinder, and the cross section of the inwall of the inner chamber of described axle sleeve 201 ' is a circle.
As shown in Figure 3, it is upper that axle sleeve 201 ' can be enclosed within the first cylinder axis 101 ', and when axle sleeve 201 ' was enclosed within the first cylinder axis 101 ' when upper, for fixing described transmission shaft 10 ' and coupling 20 ', profit is screwed the first cylinder axis 101 ' and axle sleeve 201 '.
Present inventor is realizing in the process of the embodiment of the present application technological scheme, at least finds to exist in technique scheme following technical problem:
When after transmission device work a period of time, due to the phenomenon that often occurs that screw can not be completely locked, and the part that transmission shaft 10 ' is connected with coupling 20 ' is respectively the first cylinder axis 101 ' and axle sleeve 201 ', wherein the cross section of the inwall of the cross section of the first cylinder axis 101 ' and the inner chamber of axle sleeve 201 ' is circle, so there is relative movement between transmission shaft 10 ' and coupling 20 ', and then cause transmission device transmission wafer not in place, wafer is dropped in chamber, wafer is scrapped, cause waste, and then the working life that occurs transmission device is short, maintaining expense is high, maintaining number of times technical problem frequently.
Summary of the invention
The embodiment of the present application provides a kind of transmission device and electronic equipment, has solved between the coupling that exists in prior art and transmission shaft and has produced relative movement, and transmission device working life is short, maintaining expense is high, maintaining number of times technical problem frequently.
The embodiment of the present application provides a kind of transmission device on the one hand, and described transmission device comprises: transmission shaft, comprise the first cylinder axis, and on the outer circumferential face of described the first cylinder axis, there is tangent plane; Coupling, comprise axle sleeve, described axle sleeve is enclosed within on described the first cylinder axis, the inwall of the inner chamber of described axle sleeve is joined and is formed by rectangle plane and cambered surface, the cross section of the inwall of the inner chamber of described axle sleeve is the circular arc with string, in the time that described axle sleeve is enclosed within on described the first cylinder axis, described tangent plane and described rectangle plane match, to fix described the first cylinder axis and described axle sleeve.
Preferably, the quantity of the described tangent plane of described the first cylinder axis is one or more, the quantity of the described rectangle plane of described axle sleeve is one or more, and the quantity of the described tangent plane of described the first cylinder axis is identical with the quantity of the described rectangle plane of described axle sleeve.
Preferably, described transmission device also comprises: the first fixing-assembly, be connected between described the first cylinder axis and described axle sleeve, and when be enclosed within on described the first cylinder axis when described axle sleeve, fixing described the first cylinder axis and described axle sleeve.
Preferably, described the first fixing-assembly specifically comprises: the first hole, be positioned on the outer circumferential face of described axle sleeve, on all arms of described axle sleeve, there is the first gap and run through described perisporium, described axle sleeve is divided into first portion and second portion, and described the first hole penetrates described second portion from described first portion and the first gap; The first fastening piece, in the time that described axle sleeve is enclosed within on described the first cylinder axis, inserts in described the first hole, fixing described the first cylinder axis and described axle sleeve.
Preferably, described the first hole is specially tapped hole, shoulder hole or through hole, and described the first fastening piece is specially bolt, double-screw bolt or screw.
Preferably, described transmission device also comprises: the second fixing-assembly; Connection part, is connected with described axle sleeve, and described connection part is a hollow cylinder, the axis of described connection part and the dead in line of described axle sleeve, and the diameter of described connection part is less than the diameter of described axle sleeve; Harmonic gear, fixes by described connection part and described the second fixing-assembly and described axle sleeve, for reducing the rotating speed of described axle sleeve.
Preferably, described the second fixing-assembly specifically comprises: the first fixed element, is positioned on described first end face of described axle sleeve; The second fixed element, is positioned on described harmonic gear; Coordinate to fix described harmonic gear and described axle sleeve by described the first fixed element and described the second fixed element.
Preferably, described the first fixed element is specially the second hole, and described the second hole penetrates in described axle sleeve along the direction of the described axis of described axle sleeve; Described the second fixed element is specially the second fastening piece, and described the second fastening piece inserts in described the second hole, to fix described harmonic gear and described axle sleeve.
Preferably, described the second hole is specially tapped hole, blind hole, shoulder hole or through hole, and described the second fastening piece is specially bolt, double-screw bolt or screw.
Preferably, described transmission device also comprises: motor, is connected with described axle sleeve by described harmonic gear, for driving described axle sleeve to rotate.
Preferably, described transmission shaft also comprises: the second cylinder axis, described the second cylinder axis is connected with described the first cylinder axis, the dead in line of the axis of described the second cylinder axis and described the first cylinder axis.
The present invention also provides a kind of electronic equipment on the other hand, and described electronic equipment comprises: casing; Arbitrary transmission device as the aforementioned, is arranged on described casing.
The one or more technological schemes that provide in the embodiment of the present application, at least have following technique effect or advantage:
In one embodiment of the invention, because transmission device comprises: transmission shaft, comprise the first cylinder axis, on the outer circumferential face of described the first cylinder axis, there is tangent plane, coupling, comprise axle sleeve, described axle sleeve is enclosed within on described the first cylinder axis, the inwall of the inner chamber of described axle sleeve is joined and is formed by rectangle plane and cambered surface, the cross section of the inwall of the inner chamber of described axle sleeve is the circular arc with string, in the time that described axle sleeve is enclosed within on described the first cylinder axis, described tangent plane and described rectangle plane match, to fix described axle sleeve and described the first cylinder axis, because the tangent plane of the first cylinder axis and the cambered surface of axle sleeve fasten, the cambered surface of the rectangle plane of axle sleeve and the first cylinder axis fastens, so can solve prior art exist coupling and transmission shaft between produce relative movement, the working life of transmission device is short, maintaining expense is high, maintaining number of times technical problem frequently, can make can not produce between coupling and transmission shaft relative movement, extend the working life of transmission device, reduce maintaining expense, reduce maintaining number of times.
Further, transmission device also comprises the first fixing-assembly, for fixing described the first cylinder axis and described coupling, further make can not produce between coupling and transmission shaft relative movement, further extend the working life of transmission device, further reduce maintaining expense, further reduce maintaining number of times.
Brief description of the drawings
Fig. 1 a is the plan view of transmission shaft of the prior art;
Fig. 1 b is the left view of transmission shaft of the prior art;
Fig. 1 c is the plan view of transmission shaft of the prior art;
Fig. 2 a is the left view of coupling of the prior art;
Fig. 2 b is the right elevation of coupling of the prior art;
Fig. 3 is the left view of transmission device in prior art;
Fig. 4 a is the plan view of transmission shaft in the application one embodiment;
Fig. 4 b is the left view of transmission shaft in the application one embodiment;
Fig. 4 c is the right elevation of transmission shaft in the application one embodiment;
Fig. 5 a is the plan view of coupling in the application one embodiment;
Fig. 5 b is the left view of coupling in the application one embodiment;
Fig. 5 c is the right elevation of coupling in the application one embodiment;
Fig. 5 d is the plan view of coupling in the application one embodiment;
Fig. 6 is the left view of transmission device in the application one embodiment;
Fig. 7 is the structural drawing of harmonic gear in the application one embodiment;
Fig. 8 is the structural drawing of motor in the application one embodiment;
Fig. 9 is the Organization Chart of electronic equipment in the application one embodiment.
Embodiment
The embodiment of the present application provides a kind of transmission device and electronic equipment, has solved between the transmission shaft that exists in prior art and coupling and has produced relative movement, and working life of transmission device is short, maintaining expense is high, maintaining number of times technical problem frequently.
The technological scheme of one embodiment of the invention is for solving the above problems, and general thought is as follows:
The transmission device that the embodiment of the present invention provides comprises: transmission shaft, comprise the first cylinder axis, and on the outer circumferential face of the first cylinder axis, there is tangent plane, coupling, comprise axle sleeve, axle sleeve is enclosed within on the first cylinder axis, the inwall of the inner chamber of axle sleeve is joined and is formed by rectangle plane and cambered surface, the cross section of the inwall of the inner chamber of axle sleeve is the circular arc with string, in the time that axle sleeve is enclosed within on the first cylinder axis, tangent plane and rectangle plane match, with fixed axle sleeve and the first cylinder axis, because the tangent plane of the first cylinder axis and the cambered surface of axle sleeve fasten, the cambered surface of the rectangle plane of axle sleeve and the first cylinder axis fastens, so can solve prior art exist coupling and transmission shaft between produce relative movement, transmission device is short working life, maintaining expense is high, maintaining number of times technical problem frequently, can make can not produce between coupling and transmission shaft relative movement, extend the working life of transmission device, reduce maintaining expense, reduce maintaining number of times.
In order better to understand technique scheme, below in conjunction with Figure of description and concrete mode of execution, technique scheme is described in detail.
The present embodiment provides a kind of transmission device, and transmission device comprises:
As shown in Fig. 4 a, Fig. 4 b and Fig. 4 c, wherein, the plan view that Fig. 4 a is transmission shaft, Fig. 4 b is the left view of transmission shaft, the plan view that Fig. 4 c is transmission shaft, and the transmission shaft 10 of transmission device comprises the first cylinder axis 101, wherein, on the outer circumferential face of the first cylinder axis 101, there is tangent plane 103.
As shown in Fig. 5 a, Fig. 5 b, Fig. 5 c and Fig. 5 d, wherein, Fig. 5 a is the plan view of coupling, Fig. 5 b is the left view of coupling, the right elevation that Fig. 5 c is coupling, the plan view that Fig. 5 d is coupling, coupling 20 in transmission device comprises axle sleeve 201, wherein, the inwall of the inner chamber of axle sleeve 201 is joined and is formed by rectangle plane 202 and cambered surface 203, and the cross section of the inwall of the inner chamber of axle sleeve is the circular arc with string.
As shown in Figure 6, axle sleeve 201 is enclosed within on the first cylinder axis 101, in the time that axle sleeve 201 is enclosed within on the first cylinder axis 101, tangent plane 103 matches with rectangle plane 202, to fix the first cylinder axis 101 and axle sleeve 201.
Certainly, the quantity of the tangent plane 103 of the first cylinder axis 101 in the transmission shaft 10 in the embodiment of the present application can be one or more, and the application is not restricted.
Certainly, the quantity of the rectangle plane 202 of the axle sleeve 201 of the coupling 20 in the application's embodiment can be one or more, wherein the quantity of the quantity of the tangent plane 103 of the first cylinder axis 101 and the rectangle plane 202 of axle sleeve 201 is consistent, and the position of tangent plane 103 in the first cylinder axis 101 is corresponding with the position of rectangle plane 202 in axle sleeve 201, so that the tangent plane 103 of the first cylinder axis 101 matches with the rectangle plane 202 of axle sleeve 201, can fix the first cylinder axis 101 and axle sleeve 201, the application is not restricted.
Because the first cylinder axis 101 of the transmission shaft 10 in transmission device is not conventional cylinder axis, but on outer circumferential face, there is the cylinder axis of tangent plane 103, the axle sleeve 201 of coupling 20 is not conventional hollow cylinder shape, but inwall is by rectangle plane 202 and cambered surface 203 axle sleeve 201 forming that joins, the cross section of the inwall of the inner chamber of axle sleeve 201 is the circular arc with string, in the time that the axle sleeve 201 of coupling 20 is enclosed within on the first cylinder axis 101 of transmission shaft 10, tangent plane 103 matches with rectangle plane 202.Because the tangent plane 103 of the first cylinder axis fastens with the cambered surface 203 of axle sleeve 201, the rectangle plane 202 of axle sleeve 201 and the cambered surface of the first cylinder axis fasten, even if the first cylinder axis 101 and axle sleeve 201 are under the effect of external force, between coupling 20 and transmission shaft 10, also there will not be relative movement, can effectively solve between the coupling 20 that exists in prior art and transmission shaft 10 and produce relative movement, the working life of transmission device is short, maintaining expense is high, maintaining number of times technical problem frequently, can extend the working life of transmission device, reduce maintaining expense, reduce maintaining number of times.
In order further to make not produce relative movement between coupling and transmission shaft, further increase the service life, enter a reduction maintaining expense, further reduce maintaining number of times, transmission device also comprises the first fixing-assembly, the first fixing-assembly is connected between the first cylinder axis 101 and axle sleeve 201, for in the time that axle sleeve 201 is enclosed within on the first cylinder axis 101, fix the first cylinder axis 101 and axle sleeve 201, can further make can not produce between coupling and transmission shaft relative movement, further increase the service life, enter a reduction maintaining expense, further reduce maintaining number of times.
In one embodiment, the first fixing-assembly specifically comprises: the first hole 205, be positioned on the outer circumferential face of axle sleeve 201, on the perisporium of axle sleeve, there is the first gap 2012 and run through perisporium, axle sleeve is divided into first portion 2011 and second portion 2012, the first hole 205Cong first portion 2011 and the first gap 2012 penetrate second portion 2013, the first fastening piece 40, in the time that axle sleeve 201 is enclosed within on the first cylinder axis 101, within the first fastening piece 40 is inserted into the first hole 205, first firm 40 locking the first hole 205, the first cylinder axis 101 is fixing with axle sleeve 201.
Wherein the first hole 205 and the second hole 104 are specially tapped hole, shoulder hole or through hole, the first fastening piece 40 is specially and the corresponding bolt of tapped hole, shoulder hole or through hole, double-screw bolt or screw, the first fastening piece 40 can be inserted in the first hole 205, and then make the first cylinder axis 101 fixing with axle sleeve 201.
In another embodiment, the first fixing-assembly can be other structures, for example snap-in structure, and the present invention is not restricted.
Further, as shown in Figure 5 b, transmission device also comprises: the second fixing-assembly; Connection part 204, connection part 204 is a hollow cylinder, the dead in line of the axis of connection part 204 and axle sleeve 201, the diameter of connection part 204 is less than the diameter of axle sleeve 201; As shown in Figure 7, harmonic gear 30, harmonic gear 30 is fixed with axle sleeve 201 by connection part 204 and the second fixing-assembly, and because the rotating speed of the output shaft of harmonic gear 30 is less than the rotating speed of input shaft, harmonic gear 30 can be for reducing the rotating speed of axle sleeve 201.
In the application one embodiment, the second fixing-assembly specifically comprises: the first fixed element, is positioned on the first end face of axle sleeve 201.The second fixed element, be positioned on harmonic gear 30, coordinate to fix harmonic gear 30 and axle sleeve 201 by the first fixed element and the second fixed element, wherein the quantity of the second fixed element is identical with the quantity of the first fixed element, and the first fixed element is corresponding in the position of harmonic gear 30 with the second fixed element in the position of the first end face of axle sleeve 201, the second fixed element can be inserted in the first fixed element, the second fixed element engages with the first fixed element, harmonic gear 30 is fixed on axle sleeve 201, for reducing the rotating speed of axle sleeve 201.The first fixed element is specially the second hole 206, wherein the quantity in the second hole 206 can be more than 1 or 1, the quantity in the second hole 206 in Fig. 5 b is 6, the second hole 206 penetrates in axle sleeve 201 along the direction of the axis of axle sleeve 201, the second fixed element is specially the second fastening piece, the quantity of the second fastening piece is identical with the quantity in the second hole 206, the second fastening piece inserts in the second hole 206, lock the second hole 206, to fix harmonic gear 30 and axle sleeve 201, harmonic gear 30 can reduce the rotating speed of axle sleeve 201.
Wherein the second hole 206 is specially tapped hole, blind hole, shoulder hole or through hole, and the second fastening piece is specially bolt, double-screw bolt or screw.
Certainly, the first fixed element and the second fixed element can be other structures, for example the first fixed element can also be a groove, groove is positioned on the first end face of axle sleeve 201, the second fixed element can also be the projective structure mating with groove, and projective structure is inserted in groove, and groove and protrusion are fastened togather, to fix harmonic gear 30 and axle sleeve 201, the application is not restricted.
Wherein, as shown in Figure 5 b, connection part 204 is positioned at the first end face of axle sleeve 201, has the parts that match with connection part 204 on harmonic gear 30, first end face that harmonic gear 30 can be fixed on to axle sleeve 201 by connection part 204, harmonic gear 30 can reduce the rotating speed of axle sleeve.
Wherein, as shown in Figure 7, harmonic gear 30 specifically comprises waveform generator 301, steel wheel 302 and flexbile gear 303, and waveform generator 301 makes flexbile gear 303 produce controlled elasticity distortion and is meshed to transmit motion and power with firm wheel 302.Particularly: harmonic gear 30 is by a steel wheel 302 with internal tooth, in when work, can produce larger radial elastic distortion and be contained in flexbile gear 303 inside, ovalize, outer ring with the flexbile gear 303 of external tooth and one and form with the wave-generator 301 of flexible rolling bearing, wherein, wave-generator 301 is a rod-like members, mutually compress with the inwall of flexbile gear 303, the diameter of bore of flexbile gear 303 is slightly less than the overall length of wave-generator 301, and the outer number of teeth of flexbile gear 303 is less than the interior number of teeth of steel wheel 302.Steel wheel 302 is equivalent to the central gear in planetary system, and flexbile gear 303 is equivalent to planetary pinion, and wave-generator 301 is equivalent to planet carrier.Because the outer number of teeth of flexbile gear 303 is less than the interior number of teeth of steel wheel 302, so the input speed of harmonic gear 30 is higher than output speed.
In the time that wave-generator 301 rotates, corresponding to the just in time internal tooth of complete engaging-in steel wheel 302 of flexbile gear 303 external tooths of long axis direction; Aspect minor axis, external tooth is thrown off internal tooth completely.When steel wheel 302 is fixed, when wave-generator 301 rotates, the external tooth of flexbile gear 303 is by engaging-in and nibble out the internal tooth of steel wheel 302 successively, the radial displacement of any point on flexbile gear 303 gear rings will be similar to sine-shaped variation, wherein, engaging-in is tooth between wave-generator 301 major axis and minor axis, along in the different sections of flexbile gear 303 and steel wheel 302 girths in progressing into half engagement of engagement, nibble out as the tooth between wave-generator 301 major axis and minor axis, along in the different sections of flexbile gear 303 and steel wheel 302 girths in exiting gradually half engagement of engagement.
Harmonic gear 30, as retarder, adopts wave-generator 301 actives, steel wheel 302 fixing, flexbile gear 303 output forms conventionally.Particularly, the wave-generator 301 of harmonic gear 30 is in the time of the interior rotation of flexbile gear 303, force flexbile gear 303 to produce continuous resiliently deformable, the now continuous rotation of wave-generator 301, just makes flexbile gear back and forth constantly change original separately engagement in " engaging-in-to engage-to nibble out-to throw off " these four kinds of cycle of states.This phenomenon is referred to as side set motion, exactly because the outer number of teeth of the flexbile gear 303 of side set motion and harmonic gear 30 is less than the interior number of teeth of steel wheel 302, harmonic gear 30 just can become slowly running of output by the high speed rotating of input as retarder, and then reduces the rotating speed of axle sleeve 201.
Harmonic gear 30 gear ranges are large, bearing capacity is large, kinematic accuracy is high, motion is steady, without impacting, noise is little, backlash can be adjusted, transmission efficiency is high, alignment good, can realize to confined space transmission campaign and power.
As shown in Figure 8, transmission device also comprises motor 50, motor 50 is connected with axle sleeve 201 by harmonic gear 30, it is mechanical energy by electric energy conversion that motor 50 is realized according to the law of electromagnetic induction, mainly comprises that one in order to produce the electromagnet winding in magnetic field or the staor winding of distribution and rotating armature or rotor.Under the effect of staor winding rotating magnetic field, its in armature squirrel-cage aluminium frame, have electric current by and be subject to the effect in magnetic field that it is rotated, motor 50 produces driving torque and provides moving source for transmission device, for driving axle sleeve 201 to rotate.Particularly: because the output shaft 501 of motor 50 and the wave-generator 301 of harmonic gear 30 are connected, so motor 50 drives wave-generator 301 to rotate, flexbile gear 303 is as follower, and output is rotated, because harmonic gear 30 is connected with axle sleeve 201, so harmonic gear 30 drives axle sleeve 201 to rotate.
Transmission shaft 10 also comprises that the second cylinder axis 102, the second cylinder axis 102 are connected with the first cylinder axis 101, the dead in line of the axis of the second cylinder axis 102 and the first cylinder axis 101.The second cylinder axis 102 can be connected with transmission arm by bearing.
Certainly, in another embodiment of the application, the second cylinder axis 102 can also connect other devices, and the present invention is not restricted.
After motor 50 switches on power, be mechanical energy by electric energy conversion, the output shaft of motor 50 drives the wave-generator 301 of harmonic gear 30 to rotate, through the decelerating effect of harmonic gear 30, the rotating speed of output is less than the rotating speed of input, and axle sleeve 201 obtains the rotation that a rotating speed is less than motor speed, because harmonic gear 30 drives axle sleeve 201 to move, and axle sleeve 201 is fixing with transmission shaft 10, so harmonic gear 30 also drives transmission shaft 10 to rotate, and then realize the transmission agency of transmission device.
Another embodiment of the present invention provides a kind of electronic equipment, please refer to Fig. 9, and Fig. 9 is the Organization Chart of the present embodiment electronic equipment.
As shown in Figure 9, a kind of electronic equipment that the present embodiment provides, electronic equipment comprises casing 601; As the arbitrary transmission device 602 in front each embodiment, be arranged on casing 601.
The one or more technological schemes that provide in the embodiment of the present application, at least have following technique effect or advantage:
In one embodiment of the invention, because transmission device comprises: transmission shaft, comprise the first cylinder axis, on the outer circumferential face of described the first cylinder axis, there is tangent plane, coupling, comprise axle sleeve, described axle sleeve is enclosed within on described the first cylinder axis, the inwall of the inner chamber of described axle sleeve is joined and is formed by rectangle plane and cambered surface, the cross section of the inwall of the inner chamber of described axle sleeve is the circular arc with string, in the time that described axle sleeve is enclosed within on described the first cylinder axis, described tangent plane and described rectangle plane match, to fix described axle sleeve and described the first cylinder axis, because the tangent plane of the first cylinder axis and the cambered surface of axle sleeve fasten, the cambered surface of the rectangle plane of axle sleeve and the first cylinder axis fastens, so can solve prior art exist coupling and transmission shaft between produce relative movement, the working life of transmission device is short, maintaining expense is high, maintaining number of times technical problem frequently, can make can not produce between coupling and transmission shaft relative movement, extend the working life of transmission device, reduce maintaining expense, reduce maintaining number of times.
Further, transmission device also comprises the first fixing-assembly, for fixing described the first cylinder axis and described coupling, further make can not produce between coupling and transmission shaft relative movement, further extend the working life of transmission device, further reduce maintaining expense, further reduce maintaining number of times.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (12)

1. a transmission device, is characterized in that, described transmission device comprises:
Transmission shaft, comprises the first cylinder axis, on the outer circumferential face of described the first cylinder axis, has tangent plane;
Coupling, comprise axle sleeve, described axle sleeve is enclosed within on described the first cylinder axis, the inwall of the inner chamber of described axle sleeve is joined and is formed by rectangle plane and cambered surface, the cross section of the inwall of the inner chamber of described axle sleeve is the circular arc with string, in the time that described axle sleeve is enclosed within on described the first cylinder axis, described tangent plane and described rectangle plane match, to fix described the first cylinder axis and described axle sleeve.
2. device as claimed in claim 1, it is characterized in that, the quantity of the described tangent plane of described the first cylinder axis is one or more, the quantity of the described rectangle plane of described axle sleeve is one or more, and the quantity of the described tangent plane of described the first cylinder axis is identical with the quantity of the described rectangle plane of described axle sleeve.
3. device as claimed in claim 1, is characterized in that, described transmission device also comprises:
The first fixing-assembly, is connected between described the first cylinder axis and described axle sleeve, when be enclosed within on described the first cylinder axis when described axle sleeve, and fixing described the first cylinder axis and described axle sleeve.
4. device as claimed in claim 3, is characterized in that, described the first fixing-assembly specifically comprises:
The first hole, is positioned on the outer circumferential face of described axle sleeve, has the first gap and run through described perisporium on the perisporium of described axle sleeve, and described axle sleeve is divided into first portion and second portion, and described the first hole penetrates described second portion from described first portion and the first gap;
The first fastening piece, in the time that described axle sleeve is enclosed within on described the first cylinder axis, inserts in described the first hole, fixing described the first cylinder axis and described axle sleeve.
5. device as claimed in claim 4, is characterized in that, described the first hole is specially tapped hole, shoulder hole or through hole, and described the first fastening piece is specially bolt, double-screw bolt or screw.
6. device as claimed in claim 1, is characterized in that, described transmission device also comprises:
The second fixing-assembly;
Connection part, is connected with described axle sleeve, and described connection part is a hollow cylinder, the axis of described connection part and the dead in line of described axle sleeve, and the diameter of described connection part is less than the diameter of described axle sleeve;
Harmonic gear, fixes by described connection part and described the second fixing-assembly and described axle sleeve, for reducing the rotating speed of described axle sleeve.
7. device as claimed in claim 6, is characterized in that, described the second fixing-assembly specifically comprises:
The first fixed element, is positioned on described first end face of described axle sleeve;
The second fixed element, is positioned on described harmonic gear;
Coordinate to fix described harmonic gear and described axle sleeve by described the first fixed element and described the second fixed element.
8. device as claimed in claim 7, is characterized in that,
Described the first fixed element is specially the second hole, and described the second hole penetrates in described axle sleeve along the direction of the described axis of described axle sleeve;
Described the second fixed element is specially the second fastening piece, and described the second fastening piece inserts in described the second hole, to fix described harmonic gear and described axle sleeve.
9. device as claimed in claim 8, is characterized in that, described the second hole is specially tapped hole, blind hole, shoulder hole or through hole, and described the second fastening piece is specially bolt, double-screw bolt or screw.
10. device as claimed in claim 6, is characterized in that, described transmission device also comprises:
Motor, is connected with described axle sleeve by described harmonic gear, for driving described axle sleeve to rotate.
11. devices as claimed in claim 1, is characterized in that, described transmission shaft also comprises:
The second cylinder axis, described the second cylinder axis is connected with described the first cylinder axis, the dead in line of the axis of described the second cylinder axis and described the first cylinder axis.
12. 1 kinds of electronic equipments, is characterized in that, described electronic equipment comprises:
Casing;
Transmission device described in the arbitrary claim of claim 1-11, is arranged on described casing.
CN201310002743.8A 2013-01-05 2013-01-05 Transmission device and electronic device Pending CN103912590A (en)

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CN201310002743.8A CN103912590A (en) 2013-01-05 2013-01-05 Transmission device and electronic device

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Application Number Priority Date Filing Date Title
CN201310002743.8A CN103912590A (en) 2013-01-05 2013-01-05 Transmission device and electronic device

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US5052842A (en) * 1991-03-27 1991-10-01 Pitney Bowes Inc. Secure locking means for mechanical drive components
JPH07269579A (en) * 1994-03-31 1995-10-17 Sumitomo Metal Ind Ltd Flange hub for connecting rotary shaft
US6413006B1 (en) * 1999-02-19 2002-07-02 Neugart Gmbh & Co. Connection of a slotted hollow shaft, hollow axle or sleeve with an engaging counterpart
CN201273343Y (en) * 2008-08-27 2009-07-15 李刚田 Coupling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836478A (en) * 1981-08-25 1983-03-03 Canon Inc Print head driver
US5052842A (en) * 1991-03-27 1991-10-01 Pitney Bowes Inc. Secure locking means for mechanical drive components
JPH07269579A (en) * 1994-03-31 1995-10-17 Sumitomo Metal Ind Ltd Flange hub for connecting rotary shaft
US6413006B1 (en) * 1999-02-19 2002-07-02 Neugart Gmbh & Co. Connection of a slotted hollow shaft, hollow axle or sleeve with an engaging counterpart
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Application publication date: 20140709