CN104099969A - Fixing device of lifting speed reducer of mining excavator - Google Patents
Fixing device of lifting speed reducer of mining excavator Download PDFInfo
- Publication number
- CN104099969A CN104099969A CN201410327113.2A CN201410327113A CN104099969A CN 104099969 A CN104099969 A CN 104099969A CN 201410327113 A CN201410327113 A CN 201410327113A CN 104099969 A CN104099969 A CN 104099969A
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- CN
- China
- Prior art keywords
- speed reducer
- lifting speed
- expansion coupling
- coupling sleeve
- lugs
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Abstract
Disclosed is a fixing device of a lifting speed reducer of a mining excavator. The fixing device comprises four single lugs, four double-lugs, expansion coupling bushes and pin shafts, wherein the single lugs are arranged on the lifting speed reducer and used for mounting the lifting speed reducer on a main rotating platform, and the double-lugs are arranged on the main rotating platform. Each single lug of the speed reducer is arranged between the corresponding double-lugs of the main rotating platform, and each pin shaft penetrates the single lug and the double-lugs. The expansion coupling bushes are mounted between every two corresponding lugs of the speed reducer as well as between each pin shaft and each lug of the platform, and interference fit is enabled to be formed between each pin shaft and one lug hole. The fixing device guarantees that the speed reducer cannot move axially, shaking of the speed reducer can be prevented, service life of the speed reducer is prolonged, mounting and dismounting of the lifting speed reducer are benefited, convenience is brought to maintenance, and economic benefit is improved.
Description
Technical field
The present invention relates to forward shovel field, especially forward shovel lifting speed reducer fastening devices.
Background technology
On large-scale mine forward shovel, lifting speed reducer is generally fixed on revolving dial by two kinds of modes: a kind of is that reductor is bolted on platform by several, and this mounting means requires quality of fit high, and installing/dismounting is cumbersome.Another kind is that four monaurals are arranged at reductor bottom, and four monaurals are also arranged at platform top, and by bearing pin, clamp connection, this mode is beneficial to dismounting, but axial float easily appears in reductor, and then causes reductor shake.
Summary of the invention
The object of the invention is intended to overcome the shortcoming of prior art, and a kind of mining forward shovel lifting speed reducer fastening devices of being convenient to dismounting, stable connection is provided.
A kind of forward shovel lifting speed reducer of the present invention fastening devices, comprising: be arranged on lifting speed reducer four ears, expansion coupling sleeve and bearing pins on four monaurals for described lifting speed reducer being arranged on to the main platform of revolution, the main platform of described revolution, arranging; Described reductor monaural is separately positioned between the ears of the corresponding main platform of described revolution, and described bearing pin runs through wherein; Between each ear of described bearing pin and described reductor, described expansion coupling sleeve is all installed between described bearing pin and each ear of described platform, make to form interference fit between described bearing pin and earhole.
According to one embodiment of the present invention, the mounting screw of the main platform expansion coupling sleeve that outboard ear fills of described revolution and reductor expansion coupling sleeve that monaural fills is towards outside, and the mounting screw of the main platform expansion coupling sleeve that inboard ear fills of described revolution inwards.
The monaural of lifting speed reducer of the present invention is inserted in the ears of revolving dial, by bearing pin, connect, between bearing pin and each ear of platform, bearing pin and reductor ear, expansion coupling sleeve is all installed, wherein the screw of platform outboard ear and reductor expansion coupling sleeve that monaural fills is towards outside, platform expansion coupling sleeve that inboard ear fills inwards, this mounting means has not only guaranteed that reductor can axial float, can prevent reductor shake, the application life of prolonged deceleration machine, and be beneficial to the installation and removal of lifting speed reducer, easy to maintenance, improved economic benefit.
Accompanying drawing explanation
By describe its example embodiment in detail with reference to accompanying drawing, above-mentioned and further feature of the present invention and advantage will become more obvious.
Fig. 1 is lifting speed reducer fastening devices assembling drawing;
Fig. 2 is lifting speed reducer fastening devices flat distribution map;
Fig. 3 is expansion coupling sleeve sectional view.
Wherein, description of reference numerals is as follows:
The main platform ears of 1,2 revolution, 3 reductor monaurals, 4 bearing pins, 5 expansion coupling sleeves, the main platform of 6 revolution.
The specific embodiment
Referring now to accompanying drawing, example embodiment is more fully described.Yet example embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, provide these embodiments to make the present invention by comprehensive and complete, and the design of example embodiment is conveyed to those skilled in the art all sidedly.In the drawings, for clear, exaggerated the thickness of region and layer.Identical in the drawings Reference numeral represents same or similar structure, thereby will omit their detailed description.
Described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, thus provide many details to provide fully understanding embodiments of the present invention.Yet, one of skill in the art will appreciate that and can put into practice technical scheme of the present invention and there is no one or more in described specific detail, or can adopt other method, constituent element, material etc.In other cases, be not shown specifically or describe known configurations, material or operation to avoid fuzzy each aspect of the present invention.
Below in conjunction with the specific embodiment, the present invention is elaborated.
As illustrated in fig. 1 and 2, a kind of forward shovel lifting speed reducer fastening devices, comprising: turn round on main platform 6 four ears 1 and 2 that arrange, four monaurals 3, bearing pin 4, the expansion coupling sleeve 5 on reductor.
As shown in Figure 1, reductor monaural 3 inserts between platform ears 1,2, adjusts axiality, and described bearing pin 4 penetrates wherein.First between reductor ear 3 and bearing pin 4, pack expansion coupling sleeve 5 into, the adjustment screw of expansion coupling sleeve 5 is towards outside, by expansion coupling sleeve 5 swellings; Expansion coupling sleeve 5 between mounting platform outboard ear 1 and bearing pin 4 again, expansion coupling sleeve screw is towards outside, by expansion coupling sleeve 5 swellings; Expansion coupling sleeve 5 between last mounting platform inboard ear 2 and bearing pin 4, expansion coupling sleeve screw inwards, by expansion coupling sleeve 5 swellings.Expansion coupling sleeve 5 can be a kind of keyless joint device, and its principle is by tightening the outside screw of expansion sleeve, between interior ring and axle, between outer shroud and ear, produce huge enclasping force, to realize the keyless joint of parts and axle.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (2)
1. a mine excavator lifting speed reducer fastening devices, it is characterized in that, comprising: be arranged on lifting speed reducer four ears, expansion coupling sleeve and bearing pins on four monaurals for described lifting speed reducer being arranged on to the main platform of revolution, the main platform of described revolution, arranging;
Described reductor monaural is separately positioned between the ears of the corresponding main platform of described revolution, and described bearing pin runs through wherein;
Between each ear of described bearing pin and described reductor, described expansion coupling sleeve is all installed between described bearing pin and each ear of described platform, make to form interference fit between described bearing pin and earhole.
2. mine excavator lifting speed reducer fastening devices according to claim 1, it is characterized in that, the mounting screw of the main platform expansion coupling sleeve that outboard ear fills of described revolution and reductor expansion coupling sleeve that monaural fills is towards outside, and the mounting screw of the main platform expansion coupling sleeve that inboard ear fills of described revolution inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327113.2A CN104099969A (en) | 2014-07-10 | 2014-07-10 | Fixing device of lifting speed reducer of mining excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327113.2A CN104099969A (en) | 2014-07-10 | 2014-07-10 | Fixing device of lifting speed reducer of mining excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104099969A true CN104099969A (en) | 2014-10-15 |
Family
ID=51668483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410327113.2A Pending CN104099969A (en) | 2014-07-10 | 2014-07-10 | Fixing device of lifting speed reducer of mining excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104099969A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038522A (en) * | 2000-07-25 | 2002-02-06 | Komatsu Ltd | Slewing motion support apparatus for center frame |
| CN102864805A (en) * | 2012-09-28 | 2013-01-09 | 太原重工股份有限公司 | Lifting speed reduction box fixing structure and fixing structure mounting method |
| CN203603200U (en) * | 2013-12-03 | 2014-05-21 | 太原重工股份有限公司 | Fixing device for lifting speed reducer of mining excavator |
-
2014
- 2014-07-10 CN CN201410327113.2A patent/CN104099969A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038522A (en) * | 2000-07-25 | 2002-02-06 | Komatsu Ltd | Slewing motion support apparatus for center frame |
| CN102864805A (en) * | 2012-09-28 | 2013-01-09 | 太原重工股份有限公司 | Lifting speed reduction box fixing structure and fixing structure mounting method |
| CN203603200U (en) * | 2013-12-03 | 2014-05-21 | 太原重工股份有限公司 | Fixing device for lifting speed reducer of mining excavator |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |