CN201763934U - Gear box used for track transportation vehicle - Google Patents
Gear box used for track transportation vehicle Download PDFInfo
- Publication number
- CN201763934U CN201763934U CN2010201460692U CN201020146069U CN201763934U CN 201763934 U CN201763934 U CN 201763934U CN 2010201460692 U CN2010201460692 U CN 2010201460692U CN 201020146069 U CN201020146069 U CN 201020146069U CN 201763934 U CN201763934 U CN 201763934U
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- stationary ring
- box
- casing
- disc
- oil
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Abstract
The utility model relates to a gear box used for a track transportation vehicle, which comprises a box body, an output shaft and an input shaft, wherein the box body is respectively provided with a vehicle shaft bearing seat and an input shaft bearing seat; the output shaft and the input shaft are connected through a gear; a labyrinth oil seal is arranged at a joint part of a shaft and the box body; the box body comprises an upper box body and a lower box body; a joint surface between the upper box body and the lower box body passes through a shaft axis of the vehicle shaft bearing seat and is arranged in an inclining way; a safety nose is arranged on an end face of the lower box body; and a torsion bar connecting point is arranged at the bottom end of the end face of the lower box body. The original horizontal arrangement of the joint surface is changed into inclining arrangement, and a sufficient space can be preserved for arrangement of a torsion bar, meanwhile, the safety nose is arranged on an end face of the lower box body. When the torsion bar on the gear box body is broken, rotation of the gear box is prevented and normal running of the gear box can be ensured. Furthermore, the torsion bar connecting point is arranged at the bottom end of the end face of the lower box body. The arrangement of the torsion bar can reduce a displacement difference between the input shaft of the gear box and the center of a motor shaft during running.
Description
Technical field
The utility model relates to a kind of gear box structure, relates in particular to a kind of gear-box that is used for rail traffic vehicles.
Background technique
At application number is 200720039153.2, name is called in the Chinese patent literature of " high-speed carriage-axle gearbox casing ", introduced a kind of high-speed carriage-axle gearbox casing of railway large-scale maintenance machinery, it is formed by fixedly connecting by upper box and lower box, each bearing support of upper box and lower box is divided into upper and lower two halves by junction plane, the circular arc at upper box and lower box two ends is a concentric circle with the circular hole of two ends corresponding shaft bearing respectively, and the outer surface of upper box and lower box is equipped with stiffening rib.In this technological scheme, the junction plane of casing is to be horizontal arrangement, because welding stress and operating various vibrations of rail traffic vehicles and the very big temperature contrast of weld defects, remnants, make the weld seam of casing cracking often occur, cause gear-box to influence the cruising of vehicle because of leakage of oil.Usually, torsion bar is arranged on the outside of the input end of casing.Under the situation of bogie narrowed width, the shaft coupling axial space diminishes, motor shaft and gearbox input shaft axle center displacement difference compensation rate are diminished, and torsion bar is set, can not realize that but suspension rod and gear-box must dwindle the purpose of the displacement difference in axle center as far as possible at the end face of casing.
The model utility content
Technical problem to be solved in the utility model provides a kind of gear-box that is used for rail traffic vehicles, so that dismounting, oiling, observation oil level, dwindle motor shaft and gearbox input shaft axle center displacement difference, solve the problem of shaft coupling to motor shaft and gearbox input shaft axle center displacement difference compensation rate deficiency, and under the situation that guarantees the lubricant oil proper functioning, the space that oil sealing in the gear-box occupies is less, satisfies whole matching requirements.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of gear-box that is used for rail traffic vehicles comprises casing, output shaft and input shaft, and casing is arranged axle bearing seat and bearing of input shaft seat from front to back respectively; Tank surface distribution stiffening rib, this stiffening rib is extended to outer rim by bearing support; Input shaft passes the bearing of input shaft seat, and output shaft passes the axle bearing seat, and output shaft is connected by gear with input shaft; Axle is provided with labyrinth oil seal with the connecting part of casing, it is characterized in that described casing comprises upper box and lower box, the junction plane between upper box and the lower box is by axle bearing seat shaft axis, this junction plane is and is in tilted layout, and the bearing of input shaft seat is positioned at lower box; The lower box end face is provided with safe nose; Lower box end face bottom is provided with the torsion bar tie point.
On the described lower box pouring orifice is set.
Described lower box one side is provided with the oil level observation hole.
Described labyrinth oil seal is made up of an interior stationary ring, an outer stationary ring and a disc; Interior stationary ring is connected with casing respectively with outer stationary ring, and disc is connected with axle, and disc interior stationary ring and outside between the stationary ring; Form oil suction chamber between interior stationary ring and the casing; On this disc one side plane two boss are arranged, opposite side is a smooth flat; The side that outer stationary ring is relative with disc be provided with disc on two grooves that boss cooperatively interacts; Form first oil back chamber between interior stationary ring and the casing; Form second oil back chamber between disc, interior stationary ring and the outer stationary ring three.
Form drain chamber between described outer stationary ring and the disc, and be provided with the discharge channel that communicates with this drain chamber in the stationary ring outside.
Compared with prior art, adopt the technical solution of the utility model to have the following advantages:
1. the displacement difference at gearbox input shaft and motor shaft center when reducing to move.Lower box end face bottom is provided with the torsion bar tie point.The setting of torsion bar, the displacement difference at gearbox input shaft and motor shaft center in the time of can reducing to move.
2. fully guarantee the normal operation of gear-box.Be provided with safe nose at the lower box end face.When the torsion bar on the gear housing ruptures, prevent the rotation of gear-box, can keep the normal operation of gear-box.
3. be convenient to observe oil level.Lower box is provided with pouring orifice and oil level observation hole, can see maximum oil bit line and minimum oil level line.Be convenient to observe oil level like this.
4. easy for removal and installation.Junction plane changed into by original horizontal arrangement be in tilted layout, on the one hand can for convenience detach and maintenance, can reserve enough spaces for the layout of torsion bar on the other hand.
5. reduce the axial distance of the oil sealing in the gear-box, and then dwindle the space that oil sealing occupies.Interior stationary ring in this gear-box, outer stationary ring and disc quantity are one, on this disc one side plane two boss are arranged, and opposite side is a smooth flat; The side that outer stationary ring is relative with disc be provided with disc on two grooves that boss cooperatively interacts; Form first oil back chamber between interior stationary ring and the casing; Form second oil back chamber between disc, interior stationary ring and the outer stationary ring three.By optimizing the structure of interior stationary ring, outer stationary ring and disc, a plurality of interior stationary rings and outer stationary ring in the background technique are reduced to one.Like this, the axial distance of the oil sealing in the gear-box reduces, and then the space that oil sealing occupies is less.
6. effectively get rid of the outside water that infiltrates casing, guarantee that casing normally moves.Outside stationary ring and disc between form drain chamber, be provided with the discharge channel that communicates with this drain chamber in the outer stationary ring.Like this, the boss that is provided with on the disc can allow disc under the situation of high speed rotating, guarantees that outside impurity such as water enter drain chamber along the boss step, and then flows out casing, avoids it to enter in the oil sealing.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the longitudinal sectional view of Fig. 1.
Fig. 3 is that a is the sectional view of the input shaft on the casing to sectional view among Fig. 1.
Fig. 4 is the partial enlarged drawing of A portion among Fig. 3, and wherein, it is circuits that lubricant oil enters oil suction chamber that black adds thick lines.
Fig. 5 is the partial enlarged drawing of B portion among Fig. 3, and wherein, black adds the circuit that thick lines are lubricant oil oil returns in first oil back chamber.
Fig. 6 is the partial enlarged drawing of B portion among Fig. 3, and wherein, black adds the circuit that thick lines are lubricant oil oil returns in second oil back chamber.
Fig. 7 is the partial enlarged drawing of B portion among Fig. 3, and wherein, black adds the drain line that thick lines are discharge channel.
Fig. 8 is that b is the sectional view of the output shaft on the casing to sectional view among Fig. 1.
Among the figure, 1, casing, 101, upper box, 102, lower box, 2, output shaft, 3, input shaft, 4, the axle bearing seat, 5, the bearing of input shaft seat, 6, stiffening rib, 601, stiffening rib, 7, interior stationary ring, 8, outer stationary ring, 9, disc, 10, oil suction chamber, 11, safe nose, 12, the torsion bar tie point, 13, oil level observation hole, 14, pouring orifice, 15, the first input set oil groove, 16, the second input set oil groove, 17, first oil back chamber, 18, second oil back chamber, 19, drain chamber, 20, discharge channel.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is carried out concrete elaboration.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 8, a kind of gear-box that is used for rail traffic vehicles of the present utility model comprises casing 1, output shaft 2 and input shaft 3.Casing 1 is arranged axle bearing seat 4 and bearing of input shaft seat 5 from front to back respectively, and bearing support axis hole center line is parallel to each other.Casing 1 comprises upper box 101 and lower box 102, and upper box 101 and lower box 102 all adopt cast member, and both are fixedly connected, and outer surface distribution stiffening rib 6.This stiffening rib 6 is extended to outer rim by bearing support.Input shaft 3 passes bearing of input shaft seat 5, and output shaft 2 passes axle bearing seat 4, and output shaft 2 and input shaft 3 are connected by gear; Junction plane between upper box 101 and the lower box 102 is by axle bearing seat 4 shaft axiss.Junction plane is and is in tilted layout, and wherein the angle with junction plane and substantially horizontal is that 25 degree are for good.Junction plane changed into be in tilted layout, on the one hand can for convenience detach and maintenance, can reserve enough spaces for the layout of torsion bar on the other hand.Bearing of input shaft seat 5 is positioned at lower box 102; Lower box 102 end faces are provided with safe nose 11; When the torsion bar on the gear-box ruptured, safe nose 11 can prevent the rotation of gear-box.Lower box 102 end face bottoms are provided with torsion bar tie point 12.Casing 1 is tried one's best near input shaft 3 shaft axiss with tie point 12 substantially horizontals of torsion bar, the displacement difference at gearbox input shaft 3 and motor shaft center when as far as possible reducing to move.Axle is provided with labyrinth oil seal with the connecting part of casing 1.
Excessive for preventing to refuel, pouring orifice 14 is set on the lower box 102.The position of pouring orifice 14 is a little more than the maximum oil position.Like this, when refueling capacity, oil can diffuse out from pouring orifice 14, when guaranteeing that unknown volume read-out refuels midway, can not refuel too much.
Be convenient observation oil level, lower box 102 1 sides are provided with oil level observation hole 13.From oil level observation hole 13, can see maximum oil bit line and minimum oil level line.Like this, avoid using oil level gauge to detect oil level, be more convenient for observing oil level.
For guaranteeing to provide lubricated to bearing support reliably under running state, two first input set oil grooves 15 are arranged at upper box 101 tops, and lower box 2 is provided with one second input set oil groove 16.
By the casing finite element analysis, cast out stiffening rib 6 according to casing stress deformation situation in place, guaranteed that casing 1 can bear the various vibration operating modes that the track traffic gear-box occurs in actual moving process.Stiffening rib 6 also is distributed in casing 1 internal surface except being distributed in casing 1 outer surface.When casing 1 internal surface was arranged, stiffening rib 601 was arranged between axle bearing seat 4 and the bearing of input shaft seat 5.
To shown in Figure 5, as a kind of preferred version, for reducing the axial distance of the oil sealing in the gear-box, and then dwindle the space that oil sealing occupies as Fig. 3, every cover labyrinth oil seal is by an interior stationary ring 7, an outer stationary ring 8 and disc 9 compositions.Interior stationary ring 7 is connected with casing 1 respectively with outer stationary ring 8, and disc 9 is connected with axle, and disc 9 interior stationary ring 7 and outside between the stationary ring 8; Form oil suction chamber 10 between interior stationary ring 7 and the casing 1.Two boss are arranged on disc 9 one side planes, and opposite side is a smooth flat; Outer stationary ring 8 and disc 9 relative sides be provided with disc 9 on two grooves that boss cooperatively interacts; Form first oil back chamber 17 between interior stationary ring 7 and the casing 1; Form second oil back chamber 18 between disc 9, interior stationary ring 7 and outer stationary ring 8 threes.Wherein, to be integrated type with axle bearing seat 4 be good for the interior stationary ring in output shaft 2 oil sealings 7.The form that this preferred version adopts viscous fluid dynamic seal and flow resistance sealing to combine is united seal case 1.First input set oil groove 15 on the casing 1 and the lubricant oil in the second input set oil groove 16 flow into oil suction chamber 10 by the pipeline in the casing 1, rotation by input shaft 3 and output shaft 2, lubricant oil in the oil suction chamber 10 enters first oil back chamber 17 after the roller of lubricating bearings seat inside forms oil film.From first oil back chamber 17, flow of lubricant is gone into the interior road in the casing 1, finally flows in the oil trap.
As a kind of preferred structure, the interior stationary ring 7 in the oil sealing of input shaft 3 is fixedlyed connected with outer stationary ring 8, and outer stationary ring 8 is fixedlyed connected with casing 1, disc 9 and input shaft 3 interference fit.Interior stationary ring 7 in the oil sealing of output shaft 2 is fixedlyed connected with the bearing housing of output shaft 2, and outer stationary ring 8 is fixedlyed connected with the bearing housing of output shaft 2, disc 9 and output shaft 2 interference fit.
As shown in Figure 6, when lubricant oil when oil return is untimely in first oil back chamber 17, the gap of lubricant oil between interior stationary ring 7 and disc 9 flows into second oil back chamber 18.Enter the lubricant oil of second oil back chamber 18, can flow into the interior road in the casing 1 downwards along the outer wall of interior stationary ring 7, also can be outside the outer wall of disc 9 flows to the outer wall of stationary ring 8, and then from the outer wall of outer stationary ring 8 flows to interior road the casing 1.Wherein, lubricant oil enter disc 9 outer walls and outside during space between stationary ring 8 outer walls, because the inhibition of two boss on the fast rotational of disc 9 and the disc 9, lubricant oil can flow downward, and has avoided lubricant oil to flow to casing 1 outside by the space between disc 9 and the outer stationary ring 8.Whole technical proposal adopts the non-contact type mechanical labyrinth seal, two seals, secondary oil return, can be permanently effective prevent the gear-box leakage of oil.
As shown in Figure 7, form drain chamber 19 outside between stationary ring 8 and the disc 9, and be provided with the discharge channel 20 that communicates with this drain chamber 19 in the stationary ring 8 outside.Like this, the outside water that infiltrates flows out casing 1 again by this drain chamber 19 and discharge channel 20, avoids it to enter in the oil sealing.
Claims (10)
1. a gear-box that is used for rail traffic vehicles comprises casing (1), output shaft (2) and input shaft (3), and casing (1) is arranged axle bearing seat (4) and bearing of input shaft seat (5) from front to back respectively; Casing (1) surface distributed stiffening rib (6), this stiffening rib (6) is extended to outer rim by bearing support; Input shaft (3) passes bearing of input shaft seat (5), and output shaft (2) passes axle bearing seat (4), and output shaft (2) is connected by gear with input shaft (3); Axle is provided with labyrinth oil seal with the connecting part of casing (1), it is characterized in that,
Described casing (1) comprises upper box (101) and lower box (102), junction plane between upper box (101) and the lower box (102) is by axle bearing seat (4) shaft axis, this junction plane is and is in tilted layout, and bearing of input shaft seat (5) is positioned at lower box (102); Lower box (102) end face is provided with safe nose (11); Lower box (102) end face bottom is provided with torsion bar tie point (12).
2. according to the described gear-box that is used for rail traffic vehicles of claim 1, it is characterized in that, pouring orifice (14) is set on the described lower box (102).
3. according to the described gear-box that is used for rail traffic vehicles of claim 2, it is characterized in that described lower box (102) one sides are provided with oil level observation hole (13).
4. according to the described gear-box that is used for rail traffic vehicles of claim 3, it is characterized in that described upper box (101) top distribution two first input set oil grooves (15), lower box (2) distribution one second input set oil groove (16).
5. according to the described gear-box that is used for rail traffic vehicles of claim 4, it is characterized in that, between axle bearing seat (4) and bearing of input shaft seat (5), also be provided with stiffening rib (601).
6. according to the described gear-box that is used for rail traffic vehicles of claim 5, it is characterized in that the angle of described junction plane and substantially horizontal is 25 degree.
7. according to any one described gear-box that is used for rail traffic vehicles in the claim 1 to 6, it is characterized in that described labyrinth oil seal is made up of an interior stationary ring (7), an outer stationary ring (8) and a disc (9); Interior stationary ring (7) is connected with casing (1) respectively with outer stationary ring (8), and disc (9) is connected with axle, and disc (9) is positioned between stationary ring (7) and the outer stationary ring (8); Form oil suction chamber (10) between interior stationary ring (7) and the casing (1); On these disc (9) one side planes two boss are arranged, opposite side is a smooth flat; The side that outer stationary ring (8) is relative with disc (9) be provided with disc (9) on two grooves that boss cooperatively interacts; Form first oil back chamber (17) between interior stationary ring (7) and the casing (1); Form second oil back chamber (18) between disc (9), interior stationary ring (7) and outer stationary ring (8) three.
8. according to the described gear-box that is used for rail traffic vehicles of claim 7, it is characterized in that described disc (9) and axle interference fit; Interior stationary ring (7) is fixedlyed connected with the bearing housing in the casing (1) respectively with outer stationary ring (8), and perhaps interior stationary ring (7) is fixedlyed connected with outer stationary ring (8), and outer stationary ring (8) is fixedlyed connected with casing (1).
9. according to the described gear-box that is used for rail traffic vehicles of claim 8, it is characterized in that the interior stationary ring (7) in the labyrinth oil seal of described output shaft (2) is integrated type with the bearing housing of output shaft (2).
10. according to the described gear-box that is used for rail traffic vehicles of claim 9, it is characterized in that, form drain chamber (19) between described outer stationary ring (8) and the disc (9), and be provided with the discharge channel (20) that communicates with this drain chamber (19) in the stationary ring (8) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201460692U CN201763934U (en) | 2010-03-31 | 2010-03-31 | Gear box used for track transportation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201460692U CN201763934U (en) | 2010-03-31 | 2010-03-31 | Gear box used for track transportation vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763934U true CN201763934U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201460692U Expired - Lifetime CN201763934U (en) | 2010-03-31 | 2010-03-31 | Gear box used for track transportation vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN201763934U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806350A (en) * | 2010-03-31 | 2010-08-18 | 南京高速齿轮制造有限公司 | Gear case used for rail traffic vehicle |
| CN104048022A (en) * | 2013-03-12 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Box body of subway gear box |
| CN104633061A (en) * | 2014-12-17 | 2015-05-20 | 常州市瑞泰工程机械有限公司 | Gear case body for tramcar |
| CN106884972A (en) * | 2017-03-02 | 2017-06-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gearbox input shaft labyrinth seal structure |
| GB2545574B (en) * | 2015-12-17 | 2018-10-17 | Romax Tech Limited | A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential |
| CN109538520A (en) * | 2019-01-02 | 2019-03-29 | 安德里茨（中国）有限公司 | Labyrinth seal system |
| CN110131389A (en) * | 2018-02-02 | 2019-08-16 | 日本电产三协株式会社 | Driving device |
| CN115978171A (en) * | 2022-12-21 | 2023-04-18 | 南京高精轨道交通设备有限公司 | Gear box oil return sealing structure, gear box and gear box oil return method |
-
2010
- 2010-03-31 CN CN2010201460692U patent/CN201763934U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806350A (en) * | 2010-03-31 | 2010-08-18 | 南京高速齿轮制造有限公司 | Gear case used for rail traffic vehicle |
| CN104048022A (en) * | 2013-03-12 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Box body of subway gear box |
| CN104048022B (en) * | 2013-03-12 | 2016-04-27 | 南车戚墅堰机车车辆工艺研究所有限公司 | Subway Gear Box casing |
| CN104633061A (en) * | 2014-12-17 | 2015-05-20 | 常州市瑞泰工程机械有限公司 | Gear case body for tramcar |
| GB2545574B (en) * | 2015-12-17 | 2018-10-17 | Romax Tech Limited | A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential |
| CN106884972A (en) * | 2017-03-02 | 2017-06-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gearbox input shaft labyrinth seal structure |
| CN106884972B (en) * | 2017-03-02 | 2024-03-29 | 中车戚墅堰机车车辆工艺研究所股份有限公司 | Labyrinth sealing structure of input shaft of gear box |
| CN110131389A (en) * | 2018-02-02 | 2019-08-16 | 日本电产三协株式会社 | Driving device |
| CN109538520A (en) * | 2019-01-02 | 2019-03-29 | 安德里茨（中国）有限公司 | Labyrinth seal system |
| CN115978171A (en) * | 2022-12-21 | 2023-04-18 | 南京高精轨道交通设备有限公司 | Gear box oil return sealing structure, gear box and gear box oil return method |
| CN115978171B (en) * | 2022-12-21 | 2023-09-01 | 南京高精轨道交通设备有限公司 | Gear box oil return sealing structure, gear box and gear box oil return method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110316 Effective date of abandoning: 20120523 |