CN201561094U - Gear case used in rail transit - Google Patents
Gear case used in rail transit Download PDFInfo
- Publication number
- CN201561094U CN201561094U CN200920256849XU CN200920256849U CN201561094U CN 201561094 U CN201561094 U CN 201561094U CN 200920256849X U CN200920256849X U CN 200920256849XU CN 200920256849 U CN200920256849 U CN 200920256849U CN 201561094 U CN201561094 U CN 201561094U
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- China
- Prior art keywords
- gear
- casing
- shaft
- track traffic
- box according
- 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.)
- Expired - Fee Related
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- 239000004519 grease Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005461 lubrication Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
The utility model provides a gear case used in rail transit, which comprises a case body, and a driving shaft, an intermediate shaft and an output shaft arranged inside the case body, as well as a sealing cover for sealing the three shafts. The case body has a non-centrosymmetrical shape, and the vertical distance is H1 at one end of the case body and H3 at the other end thereof (H1>H3); and the contour line at the bottom end of the case body is upwardly inclined; the horizontal plane in which the axial line of the driving shaft is located is L1, the horizontal plane in which the axial line of the output shaft is located is L3, and L1 is higher than L3 in the vertical distance. The gear case provided by the utility model has the benefits that the gear case has small volume and convenience for assembly and disassembly; and the gear and bearing are all lubricated with grease and provided with a spacer ring, realizing overall maintenance free.
Description
Technical field
The utility model relates to a kind of gear box structure, especially a kind of gear-box that is applicable to the sightseeing of track traffic with tourist coach.
Background technique
The general chassis of the car of going sightseeing of track traffic is lower, so wheel footpath is less usually, this just requires, and its supporting gear-box volume is little, velocity ratio is big, reliable, noise is little and maintenance period long or non-maintaining.
Traditional gear-box generally adopts the two-stage parallel axis transmission, and bearing layout and lubrication and seal design then have conclusive effect to the gear-box performance.
Common gear-box adopts the mode along the axis subdivision, in the industry cycle be called the half-half structure, the madial wall of per half casing is provided with different bearing supports, then corresponding axle is inserted in the bearing support, remerging two half chests bodies is one, thereby finishes the assembling of casing.The two-stage parallel axis transmission that its middle (center) bearing layout is adopted also is the design along same horizontal plane.Like this, just strengthened the volume of gear-box integral body,, do not satisfied its applying working condition track traffic.
Therefore, prior art is necessary further improvement in fact.
The model utility content
The purpose of this utility model is to solve above-mentioned technical problem, and the gear-box that is applicable to track traffic that a kind of volume is little, velocity ratio is big, reliable is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of track traffic gear-box, comprise casing and the live axle, jack shaft and the output shaft that are arranged on box house, and the closing cap that encapsulates described three axles, described casing is the non-centrosymmetry shape, the one end has perpendicular distance H1, the other end has perpendicular distance H3, and H1 is greater than H3, the bottom profile line of casing is oblique line upwards, and the residing horizontal plane of the shaft axis of described live axle is L1, the residing horizontal plane of the shaft axis of described output shaft is L3, and L1 is higher than L3 on perpendicular distance.The residing horizontal plane of the shaft axis of described jack shaft is L2, and satisfies L1 be higher than L2 on perpendicular distance, and L2 is higher than L3 on perpendicular distance.
Further, described casing is a monolithic construction.Described live axle and jack shaft adopt roller bearing to support and are installed in the casing.Described output shaft adopts tapered roller bearing to support and is installed in the casing.
Further, the shaftgear of described live axle is the secondary cooperation of straight-tooth gear with the dish gear that is socketed on jack shaft.The shaftgear of described jack shaft is the secondary cooperation of straight-tooth gear with the dish gear that is socketed on output shaft.
Further, also comprise lubrication sealing structure in the described casing, there is the outside framework oil seal that is installed in the bearing (ball) cover outside that described lubrication sealing structure is included in live axle, and the part that is positioned at casing at live axle has also been installed back-up ring; For the lubrication and seal of jack shaft, the outside that jack shaft is positioned at casing has two end cap directly to seal, and inside constitutes sealing by the protrusion shaft part of bearing support and the shaft shoulder of jack shaft; For the lubrication and seal of output shaft, there is the outside framework oil seal that is installed in end cap the outside that output shaft is positioned at casing, and two grease back-up rings have been installed in inside.
Further, also be provided with hanger and safe support on the described casing, have a suspension rod to connect hanger and be connected bogie on the hanger.Described bogie be provided with one be used for when hang link when losing efficacy safe support gear-box can be supported on boss on the bogie.
The beneficial effects of the utility model are mainly reflected in:
1) the gear-box volume is small and exquisite;
2) gear and bearing all adopt grease lubrication and isolating ring are set, and realize whole non-maintaining;
In addition, adopt the two-stage parallel axis transmission, because transmitted power is little, be the negative effect that the axial force of avoiding helical gear to bring is brought the bearing layout, gear adopts hard flank of tooth spur gear.
Aspect cabinet design, for improving the rigidity of gear case body, the scheme that adopts whole case to add case lid replaces general scheme along the axis subdivision, has avoided the influence of mould assembling dislocation for bearing, and can not design bearing support, reduces the component number.
Adopt the roller bearing placement scheme at input shaft and jack shaft, owing to there is bigger vibration on the axletree, use a pair of tapered roller bearing to come the support teeth roller box on the output axletree, each all adopts split type bearing, and is more favourable for the assembling of integrated type casing.
Because gear-box is and is in tilted layout, and the gearwheel rotating speed is lower, can't realize splash lubrication, therefore gear and bearing all adopt grease lubrication, adopt the higher special grease of viscosity for gear, spread upon in the flank of tooth and the teeth groove, bearing adopts general lubricating grease, and sealing part is set influences each other to prevent two kinds of greases.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the plan view of the utility model gear-box.
Fig. 2: the A-A line generalized section among Fig. 1.
Wherein:
1, live axle 2, bearing (ball) cover 3, outside framework oil seal
4, roller bearing 5, back-up ring 6, back-up ring
7, roller bearing 8, bearing (ball) cover 9, end cap
10, bearing support 11, roller bearing 12, the shaft shoulder
13, jack shaft 14, dish gear 15, bearing support
16, roller bearing 17, the shaft shoulder 18, end cap
19, back-up ring 20, end cap 21, outside framework oil seal
22, output shaft 23, tapered roller bearing 24, gear
25, back-up ring 26, tapered roller bearing 27, end cap
28, outside framework oil seal 29, cap 30, casing
31, suspension rod 32, hanger 33, safe support
34, bogie 35, boss
Embodiment
The utility model has disclosed a kind of gear box structure, and comprise all-in-one-piece casing 30, be arranged on live axle 1, jack shaft 13 and output shaft 22 in the casing 30, and the cap 29 that encapsulates aforementioned three axles.Wherein, cap 29 and casing 30 adopt industry screw fixation method commonly used, so-called integrated type casing 30, the half-half structure that does not promptly adopt industry to use always, and employing is integrated formed structure, do the rigidity that helps to improve casing 30 like this, also can avoid the problem of misalignment of half-half structure when casing is assembled so that influence the installation of bearing simultaneously.
Please further consult Fig. 1, this casing 30 is the non-centrosymmetry shape from its side, as shown in Figure 1, the perpendicular distance H1 in left side is bigger, the perpendicular distance H3 on right side is then less, and the bottom profile line of casing 30 is oblique line upwards, thereby makes the side integral body of casing 30 approach triangle.In the side of casing 30, offer the pilot hole (not shown) of aforementioned three axles of some assemblings, other inserts aforesaid live axle 1, jack shaft 13 and 22 branches of output shaft in the casing 30 from these pilot holes and installs.Need to prove that live axle 1 is mounted in the right side of casing 30, and the residing horizontal plane of the shaft axis of live axle 1 is L1; Jack shaft 13 is mounted in the neutral position of casing 30, and the residing horizontal plane of the shaft axis of jack shaft 13 is L2; Output shaft 22 then is installed in the left side of casing 30, and the residing horizontal plane of the shaft axis of output shaft 22 is L3, and wherein L1 is higher than L2 on perpendicular distance, and L2 is higher than L3 on perpendicular distance.
Arrange that by such axle gear-box integral body can keep smaller volume, and the velocity ratio same with prior art can be provided.
In conjunction with shown in Figure 2, on the right side of casing 30, live axle 1 is supported in the casing 30 by roller bearing 4,7, and live axle 1 also is provided with the straight-tooth structure along the intermediate portion of axial direction; Jack shaft 13 is supported in the casing 30 by roller bearing 11,16, and on jack shaft 13, along the axial direction sheathed dish gear 14 that is equipped with successively, with be provided with the straight-tooth structure, the edge section of dish gear 14 wherein is formed with straight-tooth, be used for live axle 1 on the straight-tooth structure engages connect with transmitting torque.Same, 22 left sides that are installed in casing 30 of output shaft, need to prove, output shaft 22 supports by tapered roller bearing 23,26, reason is will connect wheel on the output shaft 22, can produce bigger vibrations, in order to prevent in the vibrations process, output shaft 22 produces the beat effect, thereby has adopted the tapered roller bearing with the effect of inhibition beat.And, on output shaft 22, also sheathed another gear 24 that is equipped with, the edge section of this gear 24 is same is formed with straight-tooth, be used for jack shaft 13 on the straight-tooth structure engages, thereby the moment of torsion on the jack shaft 13 is passed on the output shaft 22.
By such moment of torsion transmission, the rotation torque that motor produces through live axle 1 to the one-level gear transmission of jack shaft 13 and jack shaft 13 to the secondary gear transmission of output shaft 22, can realize driving the rotation of wheel.
Please continue to consult Fig. 2, aforementioned three axles have also carried out the lubrication and seal design in gear-box.Wherein, the two pairs of gear pairs all use special-purpose grease lubrication, and each bearing uses lithium grease lubricated, and lubrication sealing structure are set gear grease and bearing grease are kept apart.There is the outside framework oil seal 3 that is installed in the bearing (ball) cover 2,8 outside that described sealing configuration is included in live axle 1, can prevent that grease from overflowing and can stop extraneous dust to enter gear-box, the part that is positioned at casing 30 at live axle 1 has also been installed back-up ring 5,6 and has been entered casing 30 inside with the isolation grease.For the lubrication and seal of jack shaft 13, the outside that jack shaft 13 is positioned at casing 30 has two end cap 9,18 directly to seal, and inside constitutes sealing by the protrusion shaft part of bearing support 10,15 and the shaft shoulder 12,17 of jack shaft 13.For the lubrication and seal of output shaft 22, there are outside framework oil seal 21, the 28 isolating exterior dusts that are installed in end cap 20,27 outside that output shaft 22 is positioned at casing 30, and stops grease excessive, and two grease back-up rings 19,25 have been installed in inside.By such mode, can effectively bearing grease and gear grease be kept apart, avoided the influence of dust simultaneously to each component, increased the working life of each component greatly, make that the cycle stretch-out setting of safeguarding can be in order to avoid safeguard.
In addition, on the casing 30 also design have hanger 32 and 33, one suspension rods of safe support 31 to connect hangers 32 and be connected bogie 34 on the hanger 32, for gear-box provides the moment of reaction.For avoiding hanging the danger that link lost efficacy and brings, design one boss 35 on bogie 34, when hang link when losing efficacy safe support 33 gear-box can be supported on the boss 35 on the bogie 34.
The utility model also has multiple implementation.All employings are equal to replacement or equivalent transformation and all technological schemes of forming, all drop within the claimed scope of the utility model.
Claims (10)
1. track traffic gear-box, comprise casing and the live axle, jack shaft and the output shaft that are arranged on box house, and the closing cap that encapsulates described three axles, it is characterized in that: described casing is the non-centrosymmetry shape, the one end has perpendicular distance H1, the other end has perpendicular distance H3, and H1 is greater than H3, the bottom profile line of casing is oblique line upwards, and the residing horizontal plane of the shaft axis of described live axle is L1, the residing horizontal plane of the shaft axis of described output shaft is L3, and L1 is higher than L3 on perpendicular distance.
2. track traffic gear-box according to claim 1 is characterized in that: the residing horizontal plane of the shaft axis of described jack shaft is L2, and satisfies L1 be higher than L2 on perpendicular distance, and L2 is higher than L3 on perpendicular distance.
3. track traffic gear-box according to claim 1 is characterized in that: described casing is a monolithic construction.
4. track traffic gear-box according to claim 1 is characterized in that: described live axle and jack shaft adopt roller bearing to support and are installed in the casing.
5. track traffic gear-box according to claim 1 is characterized in that: described output shaft adopts tapered roller bearing to support and is installed in the casing.
6. track traffic gear-box according to claim 1 is characterized in that: the shaftgear of described live axle is the secondary cooperation of straight-tooth gear with the dish gear that is socketed on jack shaft.
7. track traffic gear-box according to claim 1 is characterized in that: the shaftgear of described jack shaft is the secondary cooperation of straight-tooth gear with the dish gear that is socketed on output shaft.
8. track traffic gear-box according to claim 1, it is characterized in that: also comprise lubrication sealing structure in the described casing, there is the outside framework oil seal that is installed in the bearing (ball) cover outside that described lubrication sealing structure is included in live axle, and the part that is positioned at casing at live axle has also been installed back-up ring; For the lubrication and seal of jack shaft, the outside that jack shaft is positioned at casing has two end cap directly to seal, and inside constitutes sealing by the protrusion shaft part of bearing support and the shaft shoulder of jack shaft; For the lubrication and seal of output shaft, there is the outside framework oil seal that is installed in end cap the outside that output shaft is positioned at casing, and two grease back-up rings have been installed in inside.
9. track traffic gear-box according to claim 1 is characterized in that: also be provided with hanger and safe support on the described casing, have a suspension rod to connect hanger and be connected bogie on the hanger.
10. track traffic gear-box according to claim 9 is characterized in that: described bogie be provided with one be used for when hang link when losing efficacy safe support gear-box can be supported on boss on the bogie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920256849XU CN201561094U (en) | 2009-11-03 | 2009-11-03 | Gear case used in rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920256849XU CN201561094U (en) | 2009-11-03 | 2009-11-03 | Gear case used in rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561094U true CN201561094U (en) | 2010-08-25 |
Family
ID=42626238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920256849XU Expired - Fee Related CN201561094U (en) | 2009-11-03 | 2009-11-03 | Gear case used in rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561094U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114851A (en) * | 2011-02-23 | 2011-07-06 | 南车株洲电力机车有限公司 | Rail engineering truck steering frame |
| CN102874262A (en) * | 2012-10-18 | 2013-01-16 | 南车株洲电力机车有限公司 | Large power alternating current transmission locomotive and driving device thereof |
| CN103195913A (en) * | 2013-03-27 | 2013-07-10 | 南车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic vehicle gear box |
| CN103662654A (en) * | 2013-12-04 | 2014-03-26 | 山东金阳矿业集团有限公司 | Gearbox for scraper conveyor |
| CN105422742A (en) * | 2015-12-16 | 2016-03-23 | 湖南机油泵股份有限公司 | Reinforcing ultra-clean-and-bright grinding head reducer |
-
2009
- 2009-11-03 CN CN200920256849XU patent/CN201561094U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114851A (en) * | 2011-02-23 | 2011-07-06 | 南车株洲电力机车有限公司 | Rail engineering truck steering frame |
| CN102114851B (en) * | 2011-02-23 | 2012-07-25 | 南车株洲电力机车有限公司 | Rail engineering truck steering frame |
| CN102874262A (en) * | 2012-10-18 | 2013-01-16 | 南车株洲电力机车有限公司 | Large power alternating current transmission locomotive and driving device thereof |
| CN103195913A (en) * | 2013-03-27 | 2013-07-10 | 南车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic vehicle gear box |
| CN103195913B (en) * | 2013-03-27 | 2015-10-28 | 南车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic vehicle gear box |
| CN103662654A (en) * | 2013-12-04 | 2014-03-26 | 山东金阳矿业集团有限公司 | Gearbox for scraper conveyor |
| CN105422742A (en) * | 2015-12-16 | 2016-03-23 | 湖南机油泵股份有限公司 | Reinforcing ultra-clean-and-bright grinding head reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 1, No. Patentee before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20181103 |