CN202955203U - Idler device for speed changing box of loading machine - Google Patents
Idler device for speed changing box of loading machine Download PDFInfo
- Publication number
- CN202955203U CN202955203U CN 201220520697 CN201220520697U CN202955203U CN 202955203 U CN202955203 U CN 202955203U CN 201220520697 CN201220520697 CN 201220520697 CN 201220520697 U CN201220520697 U CN 201220520697U CN 202955203 U CN202955203 U CN 202955203U
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- China
- Prior art keywords
- idler
- oil
- loading machine
- idler shaft
- shaft
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Abstract
The utility model discloses an idler device for a speed changing box of a loading machine. The idler device comprises a box body, wherein the box body is connected with a box cover. The idler device is characterized in that the box body is connected with the box cover by a first idler shaft; a second lubrication pressure oil way is arranged in the first idler shaft and is connected with a first small oil through hole in the first idler shaft; a first idler is arranged on the first idler shaft; and two rolling bearings with check rings are arranged in the first idler. The idler device has the characteristics of high reliability, convenience for lubrication of the bearings, low noise and the like.
Description
Technical field
The utility model relates to a kind of loading machine gearbox idler assembly, belongs 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 arranged on 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, make the second idle pulley 12 not come off, seal by O-ring seals 10 between the second idler shaft 15 and case lid 7, between one end of the second idle pulley 12 and casing 6, shaft block ring 3 is installed, 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 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 is also to cause the low one of the main reasons of this gearbox reliability.
Summary of the invention
The purpose of this utility model is the abominable problem of lubrication state that solves bearing, provide a kind of reliability high, facilitate bearing lubrication, loading machine gearbox idler assembly that noise is low.
In order to achieve the above object, the utility model 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 case lid.
The utility model 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 pressure lubrication of lubricant oil with pressure internally between two bearings by the splash lubrication from the outside, make the idle pulley bearing be 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, due 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, 2 are band back-up ring rolling bearing, 3 is shaft block ring, 4 is the Oil Guide spacer, 5 is the first idler shaft, 6 is casing, 7 is case lid, 8 is bolt, 9 is elastic washer, 10 is O-ring seals, 11 is ball bearing, 12 is the second idle pulley, 13 is axle sleeve, 14 is the Oil Guide ring, 15 is the second idler shaft, 16 are the hole back-up ring, 17 is the first logical oil ring groove, 18 is the first logical oily aperture, 19 is the first lubrication pressure oil duct, 20 is the second lubrication pressure oil duct, 21 is lubricating oil bath, 22 is the second logical oily aperture, 23 is the second logical oil ring groove, 24 is threeway oil aperture, 25 is four-way oil aperture.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment 1
The purpose of this utility model 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 utility model 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 case lid 7, O-ring seals 10 is installed, makes sealing between the first idler shaft 5 and 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 Oil Guide spacer 4, have three (at least one) threeway oil apertures 24 on Oil Guide spacer 4, on the first idler shaft 5, cover has the first idle pulley 1, 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 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 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), be 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 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 case lid (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220520697 CN202955203U (en) | 2012-10-11 | 2012-10-11 | Idler device for speed changing box of loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220520697 CN202955203U (en) | 2012-10-11 | 2012-10-11 | Idler device for speed changing box of loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955203U true CN202955203U (en) | 2013-05-29 |
Family
ID=48460777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220520697 Expired - Fee Related CN202955203U (en) | 2012-10-11 | 2012-10-11 | Idler device for speed changing box of loading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955203U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032555A (en) * | 2012-10-11 | 2013-04-10 | 龙工(上海)机械制造有限公司 | Idle wheel device for gearbox of loader |
| CN103398162A (en) * | 2013-08-16 | 2013-11-20 | 南京宁嘉机电有限公司 | Transmission device with adjustable center distance from input shaft to output shaft |
| CN112343996A (en) * | 2020-11-05 | 2021-02-09 | 中国航发沈阳发动机研究所 | Aeroengine accessory case idler structure |
-
2012
- 2012-10-11 CN CN 201220520697 patent/CN202955203U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032555A (en) * | 2012-10-11 | 2013-04-10 | 龙工(上海)机械制造有限公司 | Idle wheel device for gearbox of loader |
| CN103398162A (en) * | 2013-08-16 | 2013-11-20 | 南京宁嘉机电有限公司 | Transmission device with adjustable center distance from input shaft to output shaft |
| CN112343996A (en) * | 2020-11-05 | 2021-02-09 | 中国航发沈阳发动机研究所 | Aeroengine accessory case idler structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |