CN105276149A - Speed reducer - Google Patents
Speed reducer Download PDFInfo
- Publication number
- CN105276149A CN105276149A CN201410348829.0A CN201410348829A CN105276149A CN 105276149 A CN105276149 A CN 105276149A CN 201410348829 A CN201410348829 A CN 201410348829A CN 105276149 A CN105276149 A CN 105276149A
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- CN
- China
- Prior art keywords
- transmission shaft
- speed reducer
- lining
- oil
- ring
- 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.)
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Abstract
The invention discloses a speed reducer which comprises an oil seal device and a transmission shaft. The oil seal device is arranged at a mounting hole of a box body, and the transmission shaft stretches out of the mounting hole. The speed reducer further comprises a bushing which is arranged on the transmission shaft in a sleeving mode and is arranged between the oil seal device and the transmission shaft in a sealing mode. According to the speed reducer, the bushing is arranged on the transmission shaft in the sleeving mode so that the bushing can be in direct contact with the oil seal device, and the transmission shaft and the oil seal device are prevented from making contact; accordingly, the bushing is abraded by the oil seal device, namely the phenomenon that the transmission shaft is abraded by the oil seal device due to the relative movement of the transmission shaft and the oil seal device in the working process of the speed reducer is effectively avoided. The bushing can be directly replaced after being abraded, so that it is guaranteed that the speed reducer can be used normally. In addition, the transmission shaft is prevented from being replaced, and the cost is lowered due to the small dimension of the bushing.
Description
Technical field
The present invention relates to industrial machinery technical field, in particular, relate to a kind of speed reducer.
Background technique
Speed reducer plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, speed reducer is a kind of relatively accurate machinery, and the individual components be made up of the gear transmission be enclosed in stiff case, worm drive, pinion-endless screw transmission realizes falling slow-revving transmission device.
Wherein, being connected, needing the transmission shaft of speed reducer to stretch out casing by mounting hole to realize speed reducer with prime mover or working machine, further in order to realize the sealing of box body of speed reducer, this transmission shaft is arranged in mounting hole by oil-sealing arrangement sealing.At present, directly contact between this transmission shaft with oil-sealing arrangement, the transmission shaft of this high speed rotating when speed reducer works and oil-sealing arrangement relatively rotate and transmission shaft are produced and wear and tear, cause transmission shaft to occur groove mark, affect the stability of drive axis, oil sealing sealing also can be caused bad.To repair transmission shaft, need this transmission shaft to disassemble, repair, and then installed by the transmission shaft repaired it, this makes to need speed reducer to quit work, and wastes maintenance cost greatly; And when transmission shaft serious wear, transmission shaft also can be caused to scrap, waste user cost greatly.
Therefore, how avoiding transmission shaft to wear and tear, to reduce costs, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the invention provides a kind of speed reducer, avoid transmission shaft to wear and tear, to reduce costs.
For achieving the above object, the invention provides following technological scheme:
A kind of speed reducer, comprises the oil-sealing arrangement of the mounting hole being arranged on casing and stretches out the transmission shaft of described mounting hole, and it also comprises and being set on described transmission shaft, and seals the lining be arranged between described oil-sealing arrangement and described transmission shaft.
Preferably, in above-mentioned speed reducer, described lining is wear-resisting alloy steel lining.
Preferably, in above-mentioned speed reducer, described lining and described transmission shaft interference fit.
Preferably, in above-mentioned speed reducer, described lining is cylindrical sleeves.
Preferably, in above-mentioned speed reducer, described oil-sealing arrangement comprises:
The outer ring of fitting with the inner wall sealing of the mounting hole of described casing;
Cross section is folding surface, and the stop circle that the base angle of folding surface and described seal with buss are fitted;
Connect described outer ring and describedly stop the fastener rings enclosed.
Preferably, in above-mentioned speed reducer, described stop circle comprises near the internal resistance back-up ring of described box house and the extrernal resistance back-up ring away from described box house, and described internal resistance back-up ring is connected by Liang Quan with described extrernal resistance back-up ring, and described Liang Quan is connected with described fastener rings.
Preferably, in above-mentioned speed reducer, the described cross section stopping circle is cambered surface.
Known via above-mentioned technological scheme, compared with prior art, the invention discloses a kind of speed reducer, comprise the oil-sealing arrangement of the mounting hole being arranged on casing and stretch out the transmission shaft of mounting hole, it also comprises and being set on transmission shaft, and seals the lining be arranged between oil-sealing arrangement and transmission shaft.By sheathed lining on transmission shaft in the application, directly contact with oil-sealing arrangement to make lining, transmission shaft is stoped to contact with oil-sealing arrangement, therefore, make oil-sealing arrangement to liner wear, namely effectively prevent transmission shaft and oil-sealing arrangement relative movement in speed reducer working procedure and make oil-sealing arrangement to the wearing and tearing of transmission shaft.When can direct more resleeve after liner wear, to ensure that speed reducer normally uses, in addition, also avoid the replacing to transmission shaft, because liner size is less, thus reduce cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be 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 embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of Fig. 1 speed reducer disclosed in the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is arranged on the structural representation of the oil-sealing arrangement had on the transmission shaft of lining disclosed in the embodiment of the present invention.
Embodiment
Core of the present invention is to provide a kind of speed reducer, avoids transmission shaft to wear and tear, to reduce costs.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, 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 the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1-Figure 3, the invention discloses a kind of speed reducer, comprise the oil-sealing arrangement 2 of the mounting hole being arranged on casing and stretch out the transmission shaft 1 of mounting hole, it also comprises and being set on transmission shaft 1, and seals the lining 3 be arranged between oil-sealing arrangement 2 and transmission shaft 1.By sheathed lining 3 on transmission shaft 1 in the application, directly contact with oil-sealing arrangement 2 to make lining 3, transmission shaft 1 is stoped to contact with oil-sealing arrangement 2, therefore, oil-sealing arrangement 2 pairs of linings 3 are worn and torn, namely effectively prevent transmission shaft in speed reducer working procedure 1 and oil-sealing arrangement 2 relative movement and make the wearing and tearing of oil-sealing arrangement 2 pairs of transmission shafts 1.Can direct more resleeve 3 after lining 3 weares and teares, to ensure that speed reducer normally uses, in addition, also avoid the replacing to transmission shaft 1, because lining 3 size is less, thus reduce cost.
In specific embodiment, lining 3 is set to wear-resisting alloy steel, to improve the wear resistance of lining 3, thus extends the working life of this lining 3, reduce costs.It will be appreciated by persons skilled in the art that in practice can according to the lining 3 of the maximum speed corresponding selection relative wear material of the transmission shaft 1 of speed reducer, and the lining 3 namely in the application is not limited to a kind of material.Further, also lining 3 and the wear resistance of the outer loop material of oil-sealing arrangement 2 connecting part can be set to higher with the wear resistance of loop material in transmission shaft 1 connecting part than lining 3, be set to be formed by the Material cladding of two kinds of different wear-resisting propertys by lining 3, to reduce the cost of production of lining 3.
By lining 3 and transmission shaft 1 interference fit in the application, to realize being tightly connected of lining 3 and transmission shaft 1.Merely provide a kind of Placement comparatively simply realizing lining 3 and be tightly connected with transmission shaft 1 herein; but; be not limited in this kind of Placement in the application, if can realize lining 3 seal with transmission shaft 1 and the Placement of synchronous axial system both ensureing all in protection domain.
In preferred embodiment, lining 3 is cylindrical sleeves, and this structure is simple, is convenient to processing.The core of the application is by the application of lining 3 between the transmission shaft 1 and oil-sealing arrangement 2 of speed reducer.
In further embodiment, this oil-sealing arrangement 2 comprises: the outer ring 21 of fitting with the inner wall sealing of the mounting hole of casing; Seal with lining 3 and fit, and cross section is the stop circle 22 of bending; Connect outer ring 21 and the fastener rings 23 stopping circle 22.Oil-sealing arrangement 2 structure of the application is simple, be easy to install, and sealing effect is good.In practice, also can need to select dissimilar oil-sealing arrangement and all in protection domain according to different.
Stop circle 22 in above-described embodiment specifically comprises near the internal resistance back-up ring of box house and the extrernal resistance back-up ring away from box house, and internal resistance back-up ring is connected by beam circle 24 with extrernal resistance back-up ring, and beam circle 24 is connected with fastener rings 23.The sealing effect that internal resistance back-up ring and extrernal resistance back-up ring can further improve oil-sealing arrangement 2 is set.Particularly, this internal resistance back-up ring is all contacted with lining 3 by its bottom corner portion with extrernal resistance back-up ring, and internal resistance back-up ring is all connected with beam circle 24 with the top of extrernal resistance back-up ring, to make to form space between internal resistance back-up ring and extrernal resistance back-up ring, stops fluid to be revealed further.
In order to optimize technique scheme further, will stop that the cross section of circle 22 is set to cambered surface, preferably arc surface, to prevent from stopping that circle 22 has wedge angle with the surface of contact of lining 3, thus reduce further the wearing and tearing to lining 3.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed 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 realized or uses 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 restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a speed reducer, comprise the oil-sealing arrangement (2) of the mounting hole being arranged on casing and stretch out the transmission shaft (1) of described mounting hole, it is characterized in that, also comprise and being set on described transmission shaft (1), and seal the lining (3) be arranged between described oil-sealing arrangement (2) and described transmission shaft (1).
2. speed reducer according to claim 1, is characterized in that, described lining (3) is wear-resisting alloy steel lining.
3. speed reducer according to claim 1, is characterized in that, described lining (3) and described transmission shaft (1) interference fit.
4. speed reducer according to claim 1, is characterized in that, described lining (3) is cylindrical sleeves.
5. the speed reducer according to any one of claim 1-4, is characterized in that, described oil-sealing arrangement (2) comprising:
The outer ring (21) of fitting with the inner wall sealing of the mounting hole of described casing;
Cross section is folding surface, and the base angle of folding surface and described lining (3) seal the stop circle (22) of fitting;
Connect described outer ring (21) and stop with described the fastener rings (23) enclosing (22).
6. speed reducer according to claim 5, it is characterized in that, described stop circle (22) comprises near the internal resistance back-up ring of described box house and the extrernal resistance back-up ring away from described box house, and described internal resistance back-up ring is connected by Liang Quan (24) with described extrernal resistance back-up ring, and described Liang Quan (24) is connected with described fastener rings (23).
7. speed reducer according to claim 5, is characterized in that, the described cross section stopping circle (22) is cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348829.0A CN105276149A (en) | 2014-07-22 | 2014-07-22 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348829.0A CN105276149A (en) | 2014-07-22 | 2014-07-22 | Speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276149A true CN105276149A (en) | 2016-01-27 |
Family
ID=55145693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348829.0A Pending CN105276149A (en) | 2014-07-22 | 2014-07-22 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276149A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2546805A1 (en) * | 1975-10-18 | 1977-04-21 | Kupfer Asbest Co | SEAL RING AND METHOD OF MANUFACTURING IT |
| US4344630A (en) * | 1979-12-03 | 1982-08-17 | Imre Veres | Sealingly mounting arrangement for propeller shafts of watercraft |
| CN101315126A (en) * | 2007-05-31 | 2008-12-03 | 力帆实业(集团)股份有限公司 | Double-lip oil seal |
| CN201162823Y (en) * | 2008-02-28 | 2008-12-10 | 宁波东力传动设备股份有限公司 | Sealing abrasion-proof structure of mechanical transmission shaft |
| CN201582393U (en) * | 2009-12-23 | 2010-09-15 | 成都航利航空科技有限责任公司 | Aviation fluoro-rubber leather cup with compound lip |
| CN102022546A (en) * | 2010-11-23 | 2011-04-20 | 安徽福马车桥有限公司 | Automobile hub combined oil seal |
| CN202152852U (en) * | 2011-06-28 | 2012-02-29 | 青岛开世密封工业有限公司 | Dustproof sealing ring |
| CN203115064U (en) * | 2013-02-26 | 2013-08-07 | 中冶长天国际工程有限责任公司 | Worm and gear pair fuel tank end cover sealing structure of flexible transmission driver of sintering machine |
| CN204127283U (en) * | 2014-07-22 | 2015-01-28 | 沃德(天津)传动有限公司 | A kind of speed reducer |
-
2014
- 2014-07-22 CN CN201410348829.0A patent/CN105276149A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2546805A1 (en) * | 1975-10-18 | 1977-04-21 | Kupfer Asbest Co | SEAL RING AND METHOD OF MANUFACTURING IT |
| US4344630A (en) * | 1979-12-03 | 1982-08-17 | Imre Veres | Sealingly mounting arrangement for propeller shafts of watercraft |
| CN101315126A (en) * | 2007-05-31 | 2008-12-03 | 力帆实业(集团)股份有限公司 | Double-lip oil seal |
| CN201162823Y (en) * | 2008-02-28 | 2008-12-10 | 宁波东力传动设备股份有限公司 | Sealing abrasion-proof structure of mechanical transmission shaft |
| CN201582393U (en) * | 2009-12-23 | 2010-09-15 | 成都航利航空科技有限责任公司 | Aviation fluoro-rubber leather cup with compound lip |
| CN102022546A (en) * | 2010-11-23 | 2011-04-20 | 安徽福马车桥有限公司 | Automobile hub combined oil seal |
| CN202152852U (en) * | 2011-06-28 | 2012-02-29 | 青岛开世密封工业有限公司 | Dustproof sealing ring |
| CN203115064U (en) * | 2013-02-26 | 2013-08-07 | 中冶长天国际工程有限责任公司 | Worm and gear pair fuel tank end cover sealing structure of flexible transmission driver of sintering machine |
| CN204127283U (en) * | 2014-07-22 | 2015-01-28 | 沃德(天津)传动有限公司 | A kind of speed reducer |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |
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| RJ01 | Rejection of invention patent application after publication |