CN103032555A - Idle wheel device for gearbox of loader - Google Patents
Idle wheel device for gearbox of loader Download PDFInfo
- Publication number
- CN103032555A CN103032555A CN2012103847788A CN201210384778A CN103032555A CN 103032555 A CN103032555 A CN 103032555A CN 2012103847788 A CN2012103847788 A CN 2012103847788A CN 201210384778 A CN201210384778 A CN 201210384778A CN 103032555 A CN103032555 A CN 103032555A
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- oil
- idle wheel
- idler
- idler shaft
- aperture
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Abstract
The invention discloses an idle wheel device for a gearbox of a loader. The idle wheel device comprises a box body, and the box body is connected with a box cover; the idle wheel device is characterized in that the box body is connected with the box cover through a first idle wheel shaft; a second lubricant pressure oil passage is arranged in the first idle wheel shaft; the second lubricant pressure oil passage is connected with a first small oil through hole which is formed in the first idle wheel shaft; the first idle wheel shaft is provided with a first idle wheel; and two rolling bearings with retaining rings are formed in the first idle wheel. The idle wheel device provided by the invention has the characteristics of high reliability, convenience in bearing lubrication, low noise and the like.
Description
Technical field
The present invention relates to a kind of loading machine gearbox idler assembly, belong to the loading machine gearbox technical field.
Background technique
Wheel loader is most both at home and abroad at present adopts the gear type dynamic power shift gear box, and most gearbox is with changing nyctitropic idle pulley equipment.As shown in Figure 1, be existing idler assembly sectional view.In this device, comprise the second idle pulley 12, the second idle pulley 12 is installed on the casing 6 by the second idler shaft 15, have the first lubrication pressure oil duct 19 in the second idler shaft 15, the second idler shaft 15, the periphery axle sleeve 13 is installed, by elastic washer 9 and bolt 8 case lid 7 is fixed on the second idler shaft 15, so that the second idle pulley 12 can not come off, by O-ring seals 10 sealings, between an end of the second idle pulley 12 and the casing 6 shaft block ring 3 is installed between the second idler shaft 15 and the case lid 7, the second idle pulley 12 only has 11 supportings of a ball bearing, supporting rigidity is poor, can cause the second idle pulley 12 eccentric wears, the faults such as spring tooth, the both sides of ball bearing 11 are installed porose with back-up ring 16.Ball bearing 11 in this device only by the logical oily aperture 22 of second on the Oil Guide ring 14 by the second logical oil ring groove 23 and four-way oil aperture 25 from outside splash lubrication, particularly the ball bearing 11 of High Rotation Speed stops entering of the fluid that splashes especially, therefore the lubrication state of this ball bearing is more abominable, cause this bearing burnt, rate of fault is higher.The above-mentioned deficiency of idler assembly also is to cause the low one of the main reasons of this gearbox reliability.
Summary of the invention
The objective of the invention is to solve the abominable problem of lubrication state of bearing, provide a kind of reliability high, make things convenient for bearing lubrication, loading machine gearbox idler assembly that noise is low.
In order to achieve the above object, the invention provides a kind of loading machine gearbox idler assembly, comprise casing, casing is connected with case lid, it is characterized in that, described casing is connected with case lid by the first idler shaft, be provided with the second lubrication pressure oil duct in the first idler shaft, the first logical oily aperture on the second lubrication pressure oil duct and the first idler shaft is connected, and the first idler shaft is provided with the first idle pulley, is provided with 2 in described the first idle pulley and is with the back-up ring rolling bearings.
Preferably, the described first logical oily aperture is provided with the Oil Guide spacer, is provided with the first logical oil ring groove in the Oil Guide spacer, and the Oil Guide spacer is provided with at least 1 threeway oil aperture, the outer lubricating oil bath that is arranged with of Oil Guide spacer.
Preferably, the described first logical oily aperture, Oil Guide spacer, the first logical oil ring groove, threeway oil aperture, lubricating oil bath all are located between 2 band back-up ring rolling bearings.
Preferably, described the first idler shaft is provided with shaft block ring.
Preferably, be provided with O-ring seals between described the first idler shaft and the case lid.
The present invention compared with prior art has following advantage:
1, idle pulley becomes dual-supporting by single supporting, adopts two rolling bearing apart arrangement, forms simple beam structure, make idle pulley obtain firm supporting, the idle pulley running is stable, improves the idle pulley running accuracy, avoid the faults such as idle pulley eccentric wear, spring tooth, vibrations, further improve the reliability of gearbox.
2, the bearing of idle pulley becomes the internally pressure lubrication of lubricant oil with pressure between two bearings by the splash lubrication from the outside, so that the idle pulley bearing lubricated fully, and lubricated convenient, guarantee the good running of bearing, and then the life-span of prolongation bearing, the reliability of raising gearbox.
3, owing to supporting and lubricated improvement, the running noise of this device has also reduced.
Description of drawings
Fig. 1 is the sectional view of existing idler assembly;
Fig. 2 is a kind of sectional view of loading machine gearbox idler assembly;
Fig. 3 is a kind of structural representation of Oil Guide spacer of loading machine gearbox idler assembly;
Fig. 4 is the side view of Fig. 3.
Description of reference numerals
1 is the first idle pulley, and 2 are band back-up ring rolling bearing, and 3 is shaft block ring, 4 is the Oil Guide spacer, and 5 is the first idler shaft, and 6 is casing, 7 is case lid, and 8 is bolt, and 9 is elastic washer, 10 is O-ring seals, and 11 is ball bearing, and 12 is the second idle pulley, 13 is axle sleeve, and 14 is the Oil Guide ring, and 15 is the second idler shaft, 16 are the hole back-up ring, 17 is the first logical oil ring groove, and 18 is the first logical oily aperture, and 19 is the first lubrication pressure oil duct, 20 is the second lubrication pressure oil duct, 21 is lubricating oil bath, and 22 is the second logical oily aperture, and 23 is the second logical oil ring groove, 24 is threeway oil aperture, and 25 is four-way oil aperture.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
The objective of the invention is in the layout that does not change gearbox, do not change on the basis of housing of gearbox, change few part as far as possible, guaranteeing on the basis that the assembly installation is exchanged, a kind of new loading machine gearbox idler assembly that overcomes the deficiency of present idler assembly and invent is to improve the reliability of loading machine gearbox.
The present invention is a kind of loading machine gearbox idler assembly, as shown in Figure 2, is a kind of sectional view of loading machine gearbox idler assembly.Casing 6 is connected with case lid 7, casing 6 is connected with case lid 7 by the first idler shaft 5, between the first idler shaft 5 and the case lid 7 O-ring seals 10 is installed, so that sealing between the first idler shaft 5 and the case lid 7, and by bolt 8 and elastic washer 9 that the first idler shaft 5 is fixing with case lid 7.Have the second lubrication pressure oil duct 20 in the first idler shaft 5, the first logical oily aperture 18 on the second lubrication pressure oil duct 20 and the first idler shaft 5 is connected, position cover over against the first logical oily aperture 18 on the first idler shaft 5 has Oil Guide spacer 4, have the first logical oil ring groove 17 in the Oil Guide spacer 4, have three (at least one) threeway oil apertures 24 on the Oil Guide spacer 4, cover has the first idle pulley 1 on the first idler shaft 5, also overlap on the first idler shaft 5 shaft block ring 3 is arranged, be used for preventing that the first idle pulley 1 from horizontally slipping, the first idle pulley 1 is carried out axial limiting.2 band back-up ring rolling bearings 2 are installed in the first idle pulley 1.
The periphery of Oil Guide spacer 4, i.e. Oil Guide spacer 4, the first idle pulley 1 and be lubricating oil bath 21 with the space that forms between the back-up ring rolling bearing 2.The first logical oily aperture 18, the first logical oil ring groove 17, threeway oil aperture 24, Oil Guide spacer 4, lubricating oil bath 21 all are located between 2 band back-up ring rolling bearings 2.
Working procedure: the lubricant oil of 0.1～0.22223a on the second lubrication pressure oil duct 20 on the first idler shaft 5 enters the logical oil ring groove 17 of first on the Oil Guide spacer 4 and threeway oil aperture 24 by the logical oily aperture 18 of first on it, then enter lubricating oil bath 21, this lubricant oil with pressure can carry out pressure lubrication to two band back-up ring rolling bearings 2 on both sides.
Claims (5)
1. loading machine gearbox idler assembly, comprise casing (6), casing (6) is connected with case lid (7), it is characterized in that, described casing (6) is connected with case lid (7) by the first idler shaft (5), be provided with the second lubrication pressure oil duct (20) in the first idler shaft (5), the first logical oily aperture (18) on the second lubrication pressure oil duct (20) and the first idler shaft (5) is connected, the first idler shaft (5) is provided with the first idle pulley (1), is provided with 2 band back-up ring rolling bearings (2) in described the first idle pulley (1).
2. a kind of loading machine gearbox idler assembly as claimed in claim 1, it is characterized in that, the described first logical oily aperture (18) is provided with Oil Guide spacer (4), be provided with the first logical oil ring groove (17) in the Oil Guide spacer (4), Oil Guide spacer (4) is provided with at least 1 threeway oil aperture (24), the outer lubricating oil bath (21) that is arranged with of Oil Guide spacer (4).
3. a kind of loading machine gearbox idler assembly as claimed in claim 2, it is characterized in that, the described first logical oily aperture (18), Oil Guide spacer (4), the first logical oil ring groove (17), threeway oil aperture (24), lubricating oil bath (21) all are located between 2 band back-up ring rolling bearings (2).
4. a kind of loading machine gearbox idler assembly as claimed in claim 1 is characterized in that, described the first idler shaft (5) is provided with shaft block ring (3).
5. a kind of loading machine gearbox idler assembly as claimed in claim 1 is characterized in that, is provided with O-ring seals (10) between described the first idler shaft (5) and the case lid (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103847788A CN103032555A (en) | 2012-10-11 | 2012-10-11 | Idle wheel device for gearbox of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103847788A CN103032555A (en) | 2012-10-11 | 2012-10-11 | Idle wheel device for gearbox of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032555A true CN103032555A (en) | 2013-04-10 |
Family
ID=48019782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103847788A Pending CN103032555A (en) | 2012-10-11 | 2012-10-11 | Idle wheel device for gearbox of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032555A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675971A (en) * | 2015-01-15 | 2015-06-03 | 东风朝阳朝柴动力有限公司 | Engine lubrication type spacer and idler shaft combination structure |
| CN106762790A (en) * | 2016-12-31 | 2017-05-31 | 浙江耐士伦机械有限公司 | A kind of automobile engine cooling fan transmission device |
| CN114750205A (en) * | 2022-04-22 | 2022-07-15 | 江苏小野智能装备有限公司 | Five move two overlapping gear transfer mechanisms of platform |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108363A (en) * | 1993-11-23 | 1995-09-13 | 易通公司 | Idler gear mounting arrangement |
| JPH09112658A (en) * | 1995-10-12 | 1997-05-02 | Mitsubishi Motors Corp | Idler gear supporting device |
| CN2795128Y (en) * | 2005-06-07 | 2006-07-12 | 无锡震达机电有限公司 | Conveyor idle wheel |
| JP2007170540A (en) * | 2005-12-21 | 2007-07-05 | Toyota Industries Corp | Gear meshing portion lubricating structure |
| CN201575117U (en) * | 2009-10-16 | 2010-09-08 | 中国第一汽车集团公司 | Single-oil-duct chain idle wheel assembly |
| CN201875108U (en) * | 2010-11-15 | 2011-06-22 | 南京高特齿轮箱制造有限公司 | Lubricating device of high-speed gear-shifting industrial gearbox |
| CN202955203U (en) * | 2012-10-11 | 2013-05-29 | 龙工(上海)机械制造有限公司 | Idler device for speed changing box of loading machine |
-
2012
- 2012-10-11 CN CN2012103847788A patent/CN103032555A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108363A (en) * | 1993-11-23 | 1995-09-13 | 易通公司 | Idler gear mounting arrangement |
| JPH09112658A (en) * | 1995-10-12 | 1997-05-02 | Mitsubishi Motors Corp | Idler gear supporting device |
| CN2795128Y (en) * | 2005-06-07 | 2006-07-12 | 无锡震达机电有限公司 | Conveyor idle wheel |
| JP2007170540A (en) * | 2005-12-21 | 2007-07-05 | Toyota Industries Corp | Gear meshing portion lubricating structure |
| CN201575117U (en) * | 2009-10-16 | 2010-09-08 | 中国第一汽车集团公司 | Single-oil-duct chain idle wheel assembly |
| CN201875108U (en) * | 2010-11-15 | 2011-06-22 | 南京高特齿轮箱制造有限公司 | Lubricating device of high-speed gear-shifting industrial gearbox |
| CN202955203U (en) * | 2012-10-11 | 2013-05-29 | 龙工(上海)机械制造有限公司 | Idler device for speed changing box of loading machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675971A (en) * | 2015-01-15 | 2015-06-03 | 东风朝阳朝柴动力有限公司 | Engine lubrication type spacer and idler shaft combination structure |
| CN106762790A (en) * | 2016-12-31 | 2017-05-31 | 浙江耐士伦机械有限公司 | A kind of automobile engine cooling fan transmission device |
| CN114750205A (en) * | 2022-04-22 | 2022-07-15 | 江苏小野智能装备有限公司 | Five move two overlapping gear transfer mechanisms of platform |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |