CN101832382B - Driving device - Google Patents
Driving device Download PDFInfo
- Publication number
- CN101832382B CN101832382B CN2010101098831A CN201010109883A CN101832382B CN 101832382 B CN101832382 B CN 101832382B CN 2010101098831 A CN2010101098831 A CN 2010101098831A CN 201010109883 A CN201010109883 A CN 201010109883A CN 101832382 B CN101832382 B CN 101832382B
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- China
- Prior art keywords
- driving gear
- drilling rod
- arcs
- circular arc
- transmission device
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- 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.)
- Expired - Fee Related
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- Gears, Cams (AREA)
- Earth Drilling (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a driving device comprising a drill rod and a driving gear which are matched with each other, wherein the drill rod is provided with a connecting end for matching with the driving gear provided with a special-shaped hole for matching with the connecting end of the drill rod, the section of the connecting end and the section of the special-shaped hole are in a circular-arc quadrilateral shape, the section of the connecting end, which is perpendicular to the axis of the drill rod, and the section of the special-shaped hole, which is perpendicular to the axis of the driving gear are in circular-arc quadrangle, wherein the circular-arc quadrangle comprises four same circular arcs in uniform distribution, and the adjacent two circular arcs in the four circular arcs are in round connection. The driving device is suitable for smaller shaft neck environment, can ensure that the drill rod axially slides in a gear sleeve of the driving gear and also effectively deliver the dynamic force of the drill rod, and the gear and the drill rod can be effectively centered.
Description
Technical field
The present invention relates to the mechanical transmissioning technology field, particularly relate to a kind of transmission device.
Background technique
In mechanical transmission structure, can transferring power can guarantee that again the motion counterpart axially moves, common have spline pair and an axial singly-bound structure.Bigger for axle journal, the occasion that transferring power is bigger adopts the spline pair structure usually; And occasion less for axle journal and that transferring power is little adopts that to inlay the mode of structure of dive key more comparatively common on axle, to drive the wall scroll keyway.Though these two kinds of structures can satisfy common transmission needs, not all occasion all is suitable for.In some special items, because the restriction of factors such as spatial structure, the transmission shaft axle journal only has 15mm or 10mm is only arranged, and on such axle journal, both has been not easy processing and can also be difficult to processing keyway edge key by self-centering spline.In order to guarantee again that in the transmission of power that can guarantee drilling rod under the less environment of axle journal the centering effect of gear and drilling rod easily axially moves drilling rod freely in the drilling rod cover, be necessary to provide a kind of new transmission device to overcome the deficiency of existing technology.
Therefore, to the existing technology deficiency, provide a kind of transmission device that can under less axle journal environment, be suitable for very necessary.
Summary of the invention
The objective of the invention is to avoid the deficiency of existing technology and a kind of transmission device is provided; This transmission device is applicable to less axle journal environment; Drilling rod is endwisely slipped in the geared sleeve of driving gear, can effectively transmit power and gear and the drilling rod of drilling rod again and can effectively feel relieved.
The object of the invention is realized through following technical measures:
A kind of transmission device; Comprise drilling rod and driving gear; Said driving gear cooperates with said drilling rod, and said drilling rod is provided with and is used for the connecting end that cooperates with said driving gear, and said driving gear is provided with the profiled holes that cooperates with said drilling rod connecting end; Cross section with axis normal said driving gear said connecting end and the cross section of axis normal said drilling rod, said profiled holes is the circular arc quadrilateral
Wherein, said circular arc quadrilateral comprises four sections identical circular arcs, and said four arcs is evenly distributed, and connects for rounding between the adjacent two sections circular arcs in the said four arcs.
Preferably, above-mentioned circular arc quadrilateral is a centrosymmetric structure.
Preferably, the scope of the central angle A that the tetragonal four arcs of above-mentioned circular arc is corresponding is 40～90 °.
Preferred, the scope of the central angle A that the tetragonal four arcs of above-mentioned circular arc is corresponding is 50～80 °.
Preferred, the corresponding central angle A of the tetragonal four arcs of above-mentioned circular arc is 68 °.
Another is preferred, and the corresponding central angle A of the tetragonal four arcs of above-mentioned circular arc is for being 78 °.
Further, the radius of the tetragonal four arcs of above-mentioned circular arc is 20～28mm.
Further, the radius of the tetragonal four arcs of above-mentioned circular arc is 24mm.
A kind of transmission device of the present invention; Comprise drilling rod and driving gear, said driving gear cooperates with said drilling rod, and said drilling rod is provided with and is used for the connecting end that cooperates with said driving gear; Said driving gear is provided with the profiled holes that cooperates with said drilling rod connecting end; Cross section with axis normal said driving gear said connecting end and the cross section of axis normal said drilling rod, said profiled holes is the circular arc quadrilateral, and wherein, said circular arc quadrilateral comprises four sections identical circular arcs; Said four arcs is evenly distributed, and connects for rounding between the adjacent two sections circular arcs in the said four arcs.This transmission device, the cross section at the position that drilling rod cooperates with driving gear are the circular arc quadrilateral, when drilling rod cooperate with driving gear install after, effective transferring power.Because the cross section of drilling rod and driving gear is set to the circular arc quadrilateral; So; Drilling rod is the corresponding cambered surface of the tetragonal four arcs of circular arc with the matching part of driving gear, and centering property is good, and drilling rod can endwisely slip at the gear matched place and can guarantee that drilling rod cooperates with driving gear centering.The drill rod end cross section is the tetragonal structure of circular arc, and processing is simple, and four arcs guarantees the degree of symmetry of drill rod axis easily.The profiled holes of driving gear also is easy to processing.Therefore, this drilling rod and driving gear can be suitable at the less environment of axle journal.So transmission device of the present invention can make drilling rod in the geared sleeve of driving gear, endwisely slip, can effectively transmit power and gear and the drilling rod of drilling rod again and can effectively feel relieved.
Description of drawings
Utilize accompanying drawing that the present invention is further described, but the content in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the structural representation of a kind of transmission device of the present invention;
Fig. 2 is the plan view of connecting end of drilling rod of the transmission device of Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the A-A sectional view of the transmission device of Fig. 1;
Fig. 5 is the plan view of driving gear of the transmission device of Fig. 1.
Embodiment
In conjunction with following examples the present invention is further described.
Embodiment one
A kind of transmission device, as shown in Figure 1, comprise drilling rod 100 and driving gear 200.Drilling rod 100 cooperates with driving gear 200, transmits the power of drilling rod 100.Drilling rod 100 comprises drilling rod main body 101 and connecting end 102, and connecting end 102 is used for cooperating with driving gear 200.Cross section with axis normal this drilling rod 100 the connecting end 102 of drilling rod 100 is the circular arc quadrilateral, like Fig. 2, shown in Figure 3.Like Fig. 4, shown in Figure 5, driving gear 200 is provided with the profiled holes 202 that cooperates with the connecting end 102 of drilling rod 100, and the cross section with axis normal driving gear 200 profiled holes 202 also is the circular arc quadrilateral.The connecting end 102 of drilling rod 100 is assemblied in the profiled holes 202 of driving gear 200; Therefore, the connecting end 102 of drilling rod 100 is the identical circular arc quadrilateral of dimensional structure with the cross section of axis normal this drilling rod 100, the cross section with axis normal driving gear 200 profiled holes 202.This circular arc quadrilateral comprises four sections identical circular arcs 300,400,500 and 600, and circular arc 300,400,500 is identical with 600 radius, and circular arc 300,400,500 is also identical with 600 corresponding central angle A.Circular arc 300,400,500 and 600 is evenly distributed, and for rounding connects, its attachment portion is a fillet 800 between adjacent two sections circular arcs.
Circular arc 300,400,500 and 600 is set to centrosymmetric structure.Four arcs 300,400,500 and 600 corresponding central angle A scopes are 40～90 °, and preferable range is 50～80 °.Usually, processing machine control for ease adds the size in man-hour, and circular arc 300,400,500 and 600 central angle A set according to the size of concrete axle journal.For the axle journal of 15mm, circular arc 300,400,500 and 600 central angle A preferably are set to 68 °; For the axle journal of 10mm, it is 78 ° that circular arc 300,400,500 and 600 central angle A preferably are set to.Four arcs 300,400,500 and 600 radius are set to 20mm～28mm, to adapt to the less occasion of the diameter of axle.
This transmission device processing is easy, can be applicable to the occasion that axle journal is less.The circular arc quadrangular section structure workability of drilling rod 100 is good, can be installed on to carry out the external grinding processing on the special tooling, and four circular arcs guarantee easily that to the degree of symmetry of the axis of drilling rod 100 processing dimension of the connecting end 102 of drilling rod 100 also guarantees easily.The endoporus of driving gear 200 is the profiled holes 202 that four circular arcs are formed, and the workability of this profiled holes 202 is good, can also can use electrical discharge wire cutting through the special broaching tool broaching of customization processing.The two is easy to all guarantee that endoporus four circular arcs require and size requirement the coaxality of the axis of driving gear 200.Therefore, this transmission device processability is good, can be applicable to the environment that axle journal is less.
It is thus clear that; This transmission device can be applicable to less axle journal environment; This transmission device can make drilling rod 100 in the geared sleeve of driving gear 200, endwisely slip, and can effectively transmit the power and the driving gear 200 of drilling rod 100 again and can effectively feel relieved with drilling rod 100.
Embodiment two
A kind of transmission device, its structure is identical with embodiment one, and difference is, and tetragonal four arcs 300,400,500 of circular arc and 600 radius are set to 24mm, to satisfy the occasion that 15mm or 10mm are only arranged when axle journal.Facts have proved that this transmission device can only have the occasion of 15mm and 10mm at axle journal, effectively transmit the power of drilling rod 100, also can make the effective centering of driving gear 200 and 100 drilling rods and can guarantee that drilling rod 100 is in axial sliding in driving gear 200.This transmission device noise is little, easy to process.
Need to prove that tetragonal four arcs 300,400,500 of circular arc and 600 radius are not limited only to 24mm, this radius can be set according to the size of axle journal in the concrete Environmental Conditions flexibly.
Should be noted that at last; Above embodiment is only in order to technological scheme of the present invention to be described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technological scheme of the present invention, and do not break away from the essence and the scope of technological scheme of the present invention.
Claims (8)
1. transmission device; Comprise drilling rod and driving gear; Said driving gear cooperates with drilling rod, it is characterized in that: said drilling rod is provided with and is used for the connecting end that cooperates with driving gear, and driving gear is provided with the profiled holes that cooperates with the drilling rod connecting end; With the cross section of the connecting end of the axis normal of said drilling rod, be the circular arc quadrilateral with the cross section of the profiled holes of the axis normal of said driving gear
Wherein, said circular arc quadrilateral comprises four sections identical circular arcs, and four arcs is evenly distributed, and connects for rounding between the adjacent two sections circular arcs in the four arcs.
2. a kind of transmission device according to claim 1 is characterized in that: said circular arc quadrilateral is a centrosymmetric structure.
3. a kind of transmission device according to claim 1 and 2 is characterized in that: the scope of the central angle A that the tetragonal four arcs of said circular arc is corresponding is 40～90 °.
4. a kind of transmission device according to claim 3 is characterized in that: the scope of the central angle A that the tetragonal four arcs of said circular arc is corresponding is 50～80 °.
5. a kind of transmission device according to claim 4 is characterized in that: the corresponding central angle A of the tetragonal four arcs of said circular arc is 68 °.
6. a kind of transmission device according to claim 4 is characterized in that: the corresponding central angle A of the tetragonal four arcs of said circular arc is 78 °.
7. a kind of transmission device according to claim 1 and 2 is characterized in that: the radius of the tetragonal four arcs of said circular arc is 20～28mm.
8. a kind of transmission device according to claim 7 is characterized in that: the radius of the tetragonal four arcs of said circular arc is 24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098831A CN101832382B (en) | 2010-01-21 | 2010-01-21 | Driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098831A CN101832382B (en) | 2010-01-21 | 2010-01-21 | Driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832382A CN101832382A (en) | 2010-09-15 |
| CN101832382B true CN101832382B (en) | 2012-01-04 |
Family
ID=42716549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101098831A Expired - Fee Related CN101832382B (en) | 2010-01-21 | 2010-01-21 | Driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832382B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165950A (en) * | 2017-06-29 | 2017-09-15 | 英瑞克自动化有限公司 | Profiled holes structure flanges disk |
-
2010
- 2010-01-21 CN CN2010101098831A patent/CN101832382B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832382A (en) | 2010-09-15 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |