CN218325879U - Coupling, transmission and rail vehicle - Google Patents
Coupling, transmission and rail vehicle Download PDFInfo
- Publication number
- CN218325879U CN218325879U CN202222719782.7U CN202222719782U CN218325879U CN 218325879 U CN218325879 U CN 218325879U CN 202222719782 U CN202222719782 U CN 202222719782U CN 218325879 U CN218325879 U CN 218325879U
- Authority
- CN
- China
- Prior art keywords
- gear ring
- inner gear
- hub
- coupling
- shaft coupling
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a coupling, a transmission device and a rail vehicle, belonging to the technical field of transmission couplings, comprising two half couplings which are oppositely arranged, wherein the two half couplings are fastened and connected through a connecting piece; each half coupling comprises an inner gear ring, and the inner gear ring is in meshed connection with the outer gear sleeve; one end of the inner gear ring is fixedly connected with the hub, the other end of the inner gear ring is fixedly connected with the end cover, and a sealing ring is arranged between the end cover and the outer gear sleeve. The coupling fixes the hub at one end of the inner gear ring, the inner gear ring is meshed with the outer gear sleeve, and the hub is reliably connected with the inner gear ring all the time in the process of receiving and transmitting torque, so that the whole power transmission process is more reliable.
Description
Technical Field
The utility model belongs to the technical field of the transmission shaft coupling, concretely relates to shaft coupling, transmission and rail vehicle.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
At present, a coupling is generally arranged between a traction motor and a drive gearbox for connection of a rail vehicle transmission device, such as the traction motor and the drive gearbox, and the coupling is lubricated by oil or grease.
The inventor finds that the existing coupling generally connects the end cover and the hub, and a sealing ring is arranged between the end cover and the hub for sealing, but in the transmission process, the gap between the end cover and the hub can be changed, and the sealing ring often cannot have a corresponding sealing effect when the gap is changed, so that the leakage of oil or grease occurs, the hub and the end cover are directly connected, power transmission is performed through the end cover, and the unstable power transmission condition is easily caused by the unreliable connection between the end cover and the hub.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a coupling, transmission and rail vehicle, this coupling is fixed in a ring gear tip with wheel hub, and ring gear and outer tooth cover meshing are connected, and wheel hub is reliably connected with the ring gear all the time at the in-process of receiving moment of torsion and transmission for whole power transmission process is more reliable.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, the utility model provides a coupling, which comprises two half couplings arranged oppositely, wherein the two half couplings are fastened and connected through a connecting piece; each half coupling comprises an inner gear ring, and the inner gear ring is in meshed connection with the outer gear sleeve; one end of the inner gear ring is fixedly connected with the hub, the other end of the inner gear ring is fixedly connected with the end cover, and a sealing ring is arranged between the end cover and the outer gear sleeve.
As a further technical scheme, the two half couplings are symmetrically arranged.
As a further technical scheme, a flange is arranged at the end part of the hub, a step is arranged at the end part of the inner gear ring and connected with the flange of the hub, and the flange of the hub is connected with the inner gear ring in a welding mode.
As a further technical scheme, the outer gear sleeve is provided with a hollow space for the hub to extend into, and the hubs of the two half shaft couplings are oppositely arranged.
As a further technical scheme, the hub is provided with a through conical inner hole so as to be in interference connection with a conical shaft of the traction motor or the gearbox.
As a further technical scheme, the inner gear ring is provided with inner teeth, one end of the outer gear sleeve is provided with outer teeth which are meshed with the inner teeth of the inner gear ring, and the other end of the outer gear sleeve is provided with a flange plate.
As a further technical scheme, the flange plates of the two half coupling outer gear sleeves are oppositely arranged, and the two opposite flange plates are fixedly connected through the connecting piece.
As a further technical scheme, the tooth tops of the external teeth of the external gear sleeves are drum-shaped.
As a further technical scheme, the length of the inner teeth of the inner gear ring is larger than that of the outer teeth of the outer gear sleeve.
In a second aspect, the present invention also provides a transmission comprising a shaft coupling as described above.
In a third aspect, the present invention also provides a rail vehicle comprising a transmission as described above.
Above-mentioned the utility model has the advantages as follows:
the utility model discloses a coupling comprises two half coupling that connect relatively, and each half coupling realizes power transmission by wheel hub, ring gear and outer tooth cover cooperation, is connected with traction motor's output shaft by one of them half coupling during the use, and another half coupling is connected with the input shaft of gear box, makes the moment of torsion that comes from traction motor output shaft, exports to the gear box input shaft through two half coupling, accomplishes the transmission of moment of torsion; the shaft coupling has the advantages of simple structure, reliable performance, convenient maintenance and low manufacturing and maintenance cost.
The coupling of the utility model fixes the hub at one end part of the inner gear ring, the inner gear ring is meshed with the outer gear sleeve, and the hub is reliably connected with the inner gear ring all the time in the process of receiving and transmitting torque, so that the whole power transmission process is more reliable; just the utility model discloses at the fixed end cover that sets up in ring gear other end, no longer make wheel hub and end cover lug connection, avoided end cover and wheel hub the seepage condition that the clearance leads to appear. The utility model discloses set up the sealing washer between end cover and outer gear sleeve, can seal the lubricating grease of the gear engagement department of ring gear and outer gear sleeve, oil or fat seepage can not appear.
The utility model discloses a shaft coupling, the wheel hub of two halves shaft couplings sets up relatively, and wheel hub stretches into the middle part space of outer tooth cover, and after wheel hub is connected with the awl axle of traction motor or gear box, the moment of torsion transmission length of two halves shaft couplings reduces, can make moment of torsion transmission process more stable.
The utility model discloses a shaft coupling, the top of outer tooth cover external tooth are the cydariform, can make outer tooth cover for the axis swing of ring gear around the axis, and the outer tooth cover of two half shaft couplings realizes the radial deflection of shaft coupling for the swing of ring gear.
The utility model discloses a shaft coupling, the length of ring gear internal tooth is greater than the length of outer tooth sleeve external tooth, can make outer tooth sleeve along endwise slip for the ring gear, realizes the axial displacement ability of shaft coupling.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to constitute a limitation on the invention.
FIG. 1 is a schematic illustration of a shaft coupling according to one or more embodiments of the present invention;
in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
the coupling comprises a half coupling 1, an inner gear ring 2, an outer gear sleeve 3, a hub 4, a sealing ring 5, an end cover 6, a connecting piece 7, a flange plate 8, a welding line 9 and a tooth top 10.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1:
the utility model discloses an in the typical embodiment, as shown in fig. 1, propose a coupling, constitute by the half coupling 1 that bilateral symmetry set up, two half coupling structures are identical, and one of them half coupling 1 is connected with traction motor's output shaft, and another half coupling 1 is connected with the input shaft of gear box. The coupling is suitable for connection between a traction motor and a drive gearbox of a rail vehicle.
The two half couplings 1 are oppositely arranged, and the two half couplings 1 are firmly connected through a connecting piece 7.
Specifically, each half coupling comprises an inner gear ring 2, an outer gear sleeve 3, a hub 4, a sealing ring 5, an end cover 6 and the like.
Wherein, the inner gear ring 2 is connected with the periphery of the outer gear sleeve 3; the inner side of the inner gear ring 2 is provided with involute inner teeth, the outer side of one end of the outer gear sleeve 3 is provided with involute outer teeth which are meshed with the inner teeth of the inner gear ring 2, and the other end is provided with a flange 8 for connecting the other half of the shaft coupling. The flange plates 8 of the outer gear sleeves 3 of the two half shaft couplings 1 are oppositely arranged and are tightly connected through the connecting piece 7, so that the two half shaft couplings are connected into a whole.
The connecting piece 7 can be a hinged hole bolt, and the flange plates of the two half couplings are connected through the hinged hole bolt to transmit torque.
The tooth top 10 of the outer teeth of the outer gear sleeve 3 is processed into a drum shape along a bus, so that the outer gear sleeve can swing around an axis relative to the inner gear ring, and the outer gear sleeves of the two half couplings can swing relative to the inner gear ring to realize radial displacement of the couplings.
The length of the inner teeth of the inner gear ring 2 is greater than that of the outer teeth of the outer gear sleeve 3, so that the outer gear sleeve can slide relative to the inner gear ring along the axial direction, and the axial displacement capability of the coupling is realized.
The outer gear sleeve 3 is provided with a hollow space for the hub 4 to extend into, the outer diameter of the inner gear ring 2 is provided with a step, the end part of the hub 4 is provided with a flange, the flange end of the hub is provided with an inner hole, the inner hole is connected with the step of the outer diameter of the inner gear ring 2 in a positioning way and is welded with the inner gear ring 2 into a whole, and the hub flange and the step of the inner gear ring are welded to form a welding line 9.
The hub 4 extends into the hollow space of the outer gear sleeve 3, the hubs 4 of the two half shaft couplings 1 are oppositely arranged, and the shape of the inner wall of the outer gear sleeve is matched with that of the hub.
The hub 4 is provided with a through conical inner hole for interference connection with a conical shaft of a traction motor or a gear box.
One end of the inner gear ring 2 is connected with a flange of the hub 4, the other end of the inner gear ring 2 is fixedly connected with the end cover 6, and the inner gear ring and the end cover can be connected through a fastener; and a sealing ring 5 is arranged between the end cover 6 and the outer gear sleeve 3 and used for sealing lubricating grease at the gear meshing part of the inner gear ring 2 and the outer gear sleeve 3.
The working principle of the coupling is as follows:
the torque from the output shaft of the traction motor is transmitted to the hub through interference connection with the taper hole of the hub of the half coupling, then transmitted to the inner gear ring through welding connection of the hub and the inner gear ring, then transmitted to the outer gear sleeve through gear engagement between the inner gear ring and the outer gear sleeve, and finally transmitted to the other half coupling through the flange bolt of the outer gear sleeve; the other half of the coupling transmits the torque to the hub taper hole of the coupling through an opposite transmission route, and then the torque is output through the interference connection of the taper hole and the input shaft of the gear box, so that the torque transmission is completed.
Example 2:
the present embodiment proposes a transmission comprising a coupling as described above.
Example 3:
in an embodiment a rail vehicle is proposed, which comprises a transmission as described above.
The rail vehicle can be a motor train unit, an intercity vehicle, a subway and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A coupling is characterized by comprising two half couplings which are oppositely arranged, wherein the two half couplings are fixedly connected through a connecting piece; each half coupling comprises an inner gear ring, and the inner gear ring is in meshed connection with the outer gear sleeve; one end of the inner gear ring is fixedly connected with the hub, the other end of the inner gear ring is fixedly connected with the end cover, and a sealing ring is arranged between the end cover and the outer gear sleeve.
2. A shaft coupling according to claim 1, wherein said coupling halves are symmetrically disposed.
3. The shaft coupling according to claim 1, wherein the end of the hub is provided with a flange, the end of the inner gear ring is provided with a step to be connected with the flange of the hub, and the flange of the hub and the inner gear ring are welded.
4. A shaft coupling according to claim 1, wherein said outer sleeve has a hollow space for the insertion of a hub, the hubs of the two coupling halves being disposed opposite each other.
5. A shaft coupling according to claim 1, wherein the hub is provided with a tapered bore therethrough for interference engagement with a tapered shaft of a traction motor or gearbox.
6. A shaft coupling according to claim 1, wherein said inner gear ring has internal teeth, the outer gear sleeve has external teeth at one end thereof to be engaged with the internal teeth of the inner gear ring, and a flange at the other end thereof.
7. A shaft coupling according to claim 6, wherein the flanges of said outer sleeve halves are disposed in opposed relation, and wherein said opposed flanges are fixedly connected by said connecting members.
8. A shaft coupling according to claim 6, wherein the crests of the external teeth of said outer sleeve are crowned.
9. A shaft coupling according to claim 6, wherein the length of the internal teeth of said inner gear ring is greater than the length of the external teeth of said outer sleeve.
10. A transmission comprising a shaft coupling according to any one of claims 1 to 9.
11. A rail vehicle comprising a transmission according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222719782.7U CN218325879U (en) | 2022-10-14 | 2022-10-14 | Coupling, transmission and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222719782.7U CN218325879U (en) | 2022-10-14 | 2022-10-14 | Coupling, transmission and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218325879U true CN218325879U (en) | 2023-01-17 |
Family
ID=84826329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222719782.7U Active CN218325879U (en) | 2022-10-14 | 2022-10-14 | Coupling, transmission and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218325879U (en) |
-
2022
- 2022-10-14 CN CN202222719782.7U patent/CN218325879U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110939663B (en) | Direct-drive transmission mechanism | |
| CN202719084U (en) | Final transmission reduction box for high-horsepower tractor | |
| CN218325879U (en) | Coupling, transmission and rail vehicle | |
| CN109253224B (en) | Driving axle lightweight transmission assembly | |
| CN201396382Y (en) | Elastic coupling | |
| CN209818660U (en) | Planet wheel hub reduction gear | |
| CN112664636B (en) | Multi-spherical-surface interaxial differential assembly | |
| CN115042827A (en) | Diaphragm tooth type coupler and bogie with same | |
| CN210141301U (en) | Low-cost combined transmission conversion device | |
| CN201129371Y (en) | Drum-shaped tooth type coupling | |
| CN106870232A (en) | Engine high pressure common rail pump drive mechanism | |
| CN113251062A (en) | Drive operation device and installation method | |
| CN200996417Y (en) | Torsional-spring relieving energy economizer for automobile | |
| CN217683187U (en) | Automobile main gear shifting shaft structure | |
| CN216895680U (en) | Novel planetary reduction gearbox | |
| CN219692202U (en) | Main reducer assembly of electric axle | |
| CN211039434U (en) | External tooth shaft sleeve welding type crowned tooth coupling | |
| CN215886235U (en) | Oil changes electric fork truck gearbox connection structure | |
| CN219639284U (en) | Clutch type crowned tooth coupler with shifting fork | |
| CN215487588U (en) | High-bearing double-output double-speed planetary reducer | |
| CN220551443U (en) | Planetary gear box and speed reducer | |
| CN215621947U (en) | Driving mechanism of railway vehicle | |
| CN211202768U (en) | Double speed ratio speed reducer | |
| CN220378746U (en) | Tooth-type diaphragm coupling device for high-speed locomotive driving device | |
| CN218294364U (en) | Differential mechanism assembly with self-sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |