CN103185124B - A kind of step-down gear and casing thereof - Google Patents
A kind of step-down gear and casing thereof Download PDFInfo
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- CN103185124B CN103185124B CN201110459106.4A CN201110459106A CN103185124B CN 103185124 B CN103185124 B CN 103185124B CN 201110459106 A CN201110459106 A CN 201110459106A CN 103185124 B CN103185124 B CN 103185124B
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- bearing support
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- bearing
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Abstract
The present invention discloses a kind of step-down gear and casing thereof, described casing has bearing support, the present invention focuses on, and described bearing support has at least one for bearing support to be widened, and described casing is provided with bearing support to be widened described in edge and widens bearing support to what described box house extended. Step-down gear provided by the invention and casing thereof, widen bearing support by arranging on casing to what box house extended, shorten the bearing span of shafting being arranged at the axle widening on bearing support, thus effectively raise the strength and stability of axle in operational process.
Description
Technical field
The present invention relates to mechanical transmission technical field, in particular to a kind of step-down gear and casing thereof.
Background technology
Step-down gear plays coupling rotating speed between primover and working machine or topworks and transmits torque, applies very extensive in modern mechanical. Step-down gear is independent closed-type cylindrical gearing device, is used for reducing rotating speed and increasing torque, to meet need of work, is also used for speedup in some occasion, is called speed-increasing gear.
At present, the rising or falling speed of erecting equipment is all slow, so the speed ratio of corresponding step-down gear is all bigger, is generally multi-stage speed-reducing machine. The transmission progression of step-down gear is more many, and the diameter of axle of what transmission shaft front is more thin, and when bearing span of shafting is identical, the diameter of axle is more thin, and the intensity of the gears meshing end of axle is low, and the intensity of whole axle and operation stability are more poor.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of step-down gear of the prior art.
The primary transmission axle 11 that in figure, the diameter of axle is thinner with secondary drive shaft 12 compared with last step transmission shaft 13, bearing span of shafting is substantially identical, causing primary transmission axle 11 and secondary drive shaft 12 to present the situation of " slender axles ", intensity and the operation stability of whole axle are poor.
Therefore, how to shorten bearing span of shafting, it is to increase the strength and stability of axle in operational process, it is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the present invention provides a kind of step-down gear and casing thereof, shortens bearing span of shafting, it is to increase the strength and stability of axle in operational process.
For achieving the above object, the present invention provides following technical scheme:
The present invention provides a kind of casing, has bearing support, and described bearing support has at least one for bearing support to be widened, and described casing is provided with bearing support to be widened described in edge and widens bearing support to what described box house extended.
Preferably, comprise upper box and lower box, described upper box is provided with half pore structure on widen bearing support, bearing support is widened under being provided with half pore structure in the corresponding position of described lower box, widen bearing support on described and described under widen bearing support formed described in widen bearing support.
Preferably, the upper bearing support structure on bearing support and described upper box is widened by being weldingly connected on described;
The lower bearing seat structure on bearing support and described lower box is widened by being weldingly connected under described;
Described upper bearing support structure and described lower bearing seat structure formed described in bearing support to be widened.
Preferably, widen bearing support on described and described under widen bearing support and be semi-loop.
Preferably, the internal diameter widening bearing support on described is identical with the aperture of described upper bearing support structure;
The internal diameter widening bearing support under described is identical with the aperture of described lower bearing seat structure.
Preferably, the outer annular diameter widening bearing support on described is less than the outer edge diameter of described upper bearing support structure; The outer annular diameter widening bearing support under described is less than the outer edge diameter of described lower bearing seat structure.
Preferably, widen under described and bearing support is provided with oil return hole.
Present invention also offers a kind of step-down gear, comprise axle, bearing and casing, described axle by bearings on the bearing support of described casing, the casing that described casing provides for such scheme.
As can be seen from above-mentioned technical scheme, step-down gear provided by the invention and casing thereof, bearing support is widened to what box house extended by arranging on casing, shorten the bearing span of shafting being arranged at the axle widening on bearing support, thus effectively raise the strength and stability of axle in operational process.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of step-down gear of the prior art;
The structural representation of the step-down gear that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the upper box of the step-down gear that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the lower box of the step-down gear that Fig. 4 provides for the embodiment of the present invention.
Embodiment
The present invention provides a kind of step-down gear and casing thereof, shorten bearing span of shafting, it is to increase the strength and stability of axle in operational process.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 2��Fig. 4, the structural representation of the step-down gear that Fig. 2 provides for the embodiment of the present invention; The structural representation of the upper box of the step-down gear that Fig. 3 provides for the embodiment of the present invention; The structural representation of the lower box of the step-down gear that Fig. 4 provides for the embodiment of the present invention
In a particular embodiment, casing provided by the invention has bearing support, and the present invention focuses on, and bearing support has at least one for bearing support to be widened, and casing is provided with and widens bearing support along bearing support to be widened to what box house extended.
Casing provided by the invention, widens bearing support by arranging on casing to what box house extended, shortens the bearing span of shafting being arranged at the axle widening on bearing support, thus effectively raise the strength and stability of axle in operational process.
In the present embodiment, casing comprises upper box 21 and lower box 22, upper box 21 is provided with half pore structure on widen bearing support 23, bearing support 24 is widened under being provided with half pore structure in the corresponding position of lower box 22, above widen bearing support 23 and under widen bearing support 24 and formed and widen bearing support.
Casing can also be set to one-piece construction, widen bearing support and there is overall circular hole, be connected, by widening bearing support, the effect reaching and shortening bearing span of shafting with the bearing support to be widened of casing corresponding position.
Connect in order to convenient, widen bearing support 23 in the present embodiment with the upper bearing support structure on upper box 21 by being weldingly connected; Under widen bearing support 24 with the lower bearing seat structure on lower box 22 by being weldingly connected; Upper bearing support structure and lower bearing seat structure is made to form bearing support to be widened on lower box 22 by being covered by upper box 21. Can also by widen bearing support 23 and be bolted with the upper bearing support structure on upper box 21; By under widen bearing support 24 and be bolted with the lower bearing seat structure on lower box 22; Upper bearing support structure and lower bearing seat structure form bearing support to be widened.
In the present embodiment, above widen bearing support 23 and under widen bearing support 24 and be semi-loop. This kind of structure can effectively save material, avoids unnecessary waste. Can also by widen bearing support 23 or under widen bearing support 24 and be set to rectangular structure, the respective face of rectangular structure arranges the half bore for setting up bearing, concrete structure does not limit.
In the present embodiment, ligation is reached by welding being widened the contact limit of the inwall of bearing support 23 with the hole wall of upper bearing support structure and welds down the contact limit widening the inwall of bearing support 24 and the hole wall of lower bearing seat structure. In order to improve welding strength, the internal diameter widening bearing support 23 in the present embodiment is identical with the aperture of upper bearing support structure; Under to widen the internal diameter of bearing support 24 identical with the aperture of lower bearing seat structure.
In order to save material further, the outer annular diameter widening bearing support 23 in the present embodiment is less than the outer edge diameter of upper bearing support structure; Under widen bearing support 24 outer annular diameter be less than the outer edge diameter of lower bearing seat structure.
In the present embodiment, widen under and bearing support 24 is provided with oil return hole 25. By arranging oil return hole 25, make the lubricating oil of bearing part can flow back to box house more easily.
Present invention also offers a kind of step-down gear, comprise axle, bearing and casing, axle by bearings on the bearing support of casing, the casing that casing provides for above-described embodiment. Casing will widen before bearing support is used for supporting what diameter of axle is thinner axle, thus shorten the bearing span of shafting of the axle that to be arranged on step-down gear the diameter of axle thinner, make deceleration function reach the appearance that simultaneously effectively prevent " slender axles " of Multi-stage transmission, thus improve the strength and stability of the thinner axle of the diameter of axle in step-down gear in operational process.
In this specification sheets, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment emphasis illustrated is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a casing, has bearing support, it is characterised in that, described bearing support has at least one for bearing support to be widened, and described casing is provided with bearing support to be widened described in edge and widens bearing support to what described box house extended; Comprise upper box (21) and lower box (22), described upper box (21) is provided with half pore structure on widen bearing support (23), bearing support (24) is widened under being provided with half pore structure in the corresponding position of described lower box (22), widen bearing support (23) on described and described under widen bearing support (24) formed described in widen bearing support.
2. casing as claimed in claim 1, it is characterised in that, widen bearing support (23) on described with the upper bearing support structure on described upper box (21) by being weldingly connected;
Bearing support (24) is widened with the lower bearing seat structure on described lower box (22) by being weldingly connected under described;
Described upper bearing support structure and described lower bearing seat structure formed described in bearing support to be widened.
3. casing as claimed in claim 2, it is characterised in that, widen bearing support (23) on described and described under widen bearing support (24) and be semi-loop.
4. casing as claimed in claim 3, it is characterised in that, the internal diameter widening bearing support (23) on described is identical with the aperture of described upper bearing support structure;
The internal diameter widening bearing support (24) under described is identical with the aperture of described lower bearing seat structure.
5. casing as claimed in claim 4, it is characterised in that, the outer annular diameter widening bearing support (23) on described is less than the outer edge diameter of described upper bearing support structure; The outer annular diameter widening bearing support (24) under described is less than the outer edge diameter of described lower bearing seat structure.
6. casing as claimed in claim 2, it is characterised in that, widen under described and bearing support (24) is provided with oil return hole (25).
7. a step-down gear, comprises axle, bearing and casing, described axle by bearings on the bearing support of described casing, it is characterised in that, described casing is the casing as described in item as arbitrary in claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459106.4A CN103185124B (en) | 2011-12-31 | 2011-12-31 | A kind of step-down gear and casing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459106.4A CN103185124B (en) | 2011-12-31 | 2011-12-31 | A kind of step-down gear and casing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103185124A CN103185124A (en) | 2013-07-03 |
| CN103185124B true CN103185124B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459106.4A Active CN103185124B (en) | 2011-12-31 | 2011-12-31 | A kind of step-down gear and casing thereof |
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| CN (1) | CN103185124B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409714A (en) * | 1981-08-20 | 1983-10-18 | General Electric Company | Methods of assembling a wick and bearing |
| JPS5923136A (en) * | 1982-07-28 | 1984-02-06 | Showa Mfg Co Ltd | Reservoir construction for double tube hydraulic shock absorber |
| CN2169737Y (en) * | 1993-09-29 | 1994-06-22 | 武汉通用机械厂 | Worm axial force oil-pad balace device |
| CN2412130Y (en) * | 2000-03-03 | 2000-12-27 | 陈文军 | Verticle axle reduction case |
| CN200961679Y (en) * | 2006-10-30 | 2007-10-17 | 重庆齿轮箱有限责任公司 | Single-edge double-transmission speed reducer |
| JP2009092036A (en) * | 2007-10-11 | 2009-04-30 | Honda Motor Co Ltd | Stroke variable engine |
| CN201851598U (en) * | 2010-11-17 | 2011-06-01 | 湘潭电气设备制造有限责任公司 | High speed ratio gear speed reducer for industrial mining electric locomotive |
| CN202280820U (en) * | 2011-09-14 | 2012-06-20 | 天津市祥威传动设备有限公司 | Speed reducer with novel input installation structure |
| CN202418507U (en) * | 2011-12-31 | 2012-09-05 | 沃德(天津)传动有限公司 | Speed reducer and box body thereof |
-
2011
- 2011-12-31 CN CN201110459106.4A patent/CN103185124B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409714A (en) * | 1981-08-20 | 1983-10-18 | General Electric Company | Methods of assembling a wick and bearing |
| JPS5923136A (en) * | 1982-07-28 | 1984-02-06 | Showa Mfg Co Ltd | Reservoir construction for double tube hydraulic shock absorber |
| CN2169737Y (en) * | 1993-09-29 | 1994-06-22 | 武汉通用机械厂 | Worm axial force oil-pad balace device |
| CN2412130Y (en) * | 2000-03-03 | 2000-12-27 | 陈文军 | Verticle axle reduction case |
| CN200961679Y (en) * | 2006-10-30 | 2007-10-17 | 重庆齿轮箱有限责任公司 | Single-edge double-transmission speed reducer |
| JP2009092036A (en) * | 2007-10-11 | 2009-04-30 | Honda Motor Co Ltd | Stroke variable engine |
| CN201851598U (en) * | 2010-11-17 | 2011-06-01 | 湘潭电气设备制造有限责任公司 | High speed ratio gear speed reducer for industrial mining electric locomotive |
| CN202280820U (en) * | 2011-09-14 | 2012-06-20 | 天津市祥威传动设备有限公司 | Speed reducer with novel input installation structure |
| CN202418507U (en) * | 2011-12-31 | 2012-09-05 | 沃德(天津)传动有限公司 | Speed reducer and box body thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103185124A (en) | 2013-07-03 |
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