CN220505395U - Connecting device of hydraulic motor and fan blade for railway vehicle - Google Patents
Connecting device of hydraulic motor and fan blade for railway vehicle Download PDFInfo
- Publication number
- CN220505395U CN220505395U CN202420097887.XU CN202420097887U CN220505395U CN 220505395 U CN220505395 U CN 220505395U CN 202420097887 U CN202420097887 U CN 202420097887U CN 220505395 U CN220505395 U CN 220505395U
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- Prior art keywords
- hydraulic motor
- bearings
- shaft
- shaft sleeve
- key
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- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 241000883990 Flabellum Species 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a connecting device of a hydraulic motor and fan blades for a railway vehicle, which comprises a shell, a hydraulic motor shaft, a shaft sleeve and the fan blades, wherein the lower end of the shaft sleeve is sleeved on the hydraulic motor shaft, the shaft sleeve is connected with the hydraulic motor shaft in a flat key way, a key blocking rod is arranged in a central hole at the upper end of the shaft sleeve, an axial gap is reserved between the lower end face of the key blocking rod and the hydraulic motor shaft, a disc is arranged at the upper end of the key blocking rod, the disc is fixedly connected with the shaft sleeve through bolts, the shaft sleeve is arranged in the shell, bearings are arranged between the shell and the shaft sleeve, the bearings are arranged into two groups, the bearings adopt angular contact ball bearings, the bearings are arranged in a back-to-back mode, and an inner retainer ring is arranged between the bearings; the connecting device can bear larger torque of the hydraulic motor, runs stably, meets the dynamic balance requirement of the high-power fan blade during running, and can reliably ensure that the flat key on the shaft of the hydraulic motor does not axially drop from the key groove by adopting the connecting mode of the flat key.
Description
Technical Field
The utility model relates to the technical field of connection of a hydraulic motor and a fan blade, in particular to a connection device of the hydraulic motor and the fan blade for a railway vehicle.
Background
The cooling system of the railway car generally adopts a hydraulic motor to drive the fan blades, and the radiator is cooled by forced heat exchange, because the heat dissipation power of the engine of the railway car is larger, the fan blades for the cooling system have larger size and torque, and the existing connecting device of the hydraulic motor and the fan blades is in a moving state when the railway car works, so that the dynamic balance requirement of the fan blades in high-speed rotation is difficult to ensure, the working condition of the railway car is severe, and the connecting device of the hydraulic motor and the fan blades is difficult to prevent dust, water and seal and lubricate; chinese patent application No. 201320669480.1 discloses a coupling device for a radiator, in which a main shaft of a hydraulic motor is coupled with a shaft sleeve through a spline, and tooth root stress is concentrated, which requires to be processed by special equipment; the cost is high; the connecting device has the problems of dust prevention, water prevention and difficult sealing lubrication, and the connecting device of the hydraulic motor and the fan blade for the railway vehicle is provided for solving the problems.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the connecting device for the hydraulic motor and the fan blades for the railway vehicle, which can bear larger torque of the hydraulic motor, runs stably, meets the dynamic balance requirement of the high-power fan blades during running, can reliably ensure that the flat key on the shaft of the hydraulic motor does not axially drop from the key groove by adopting a flat key connecting mode, has the advantages of dust prevention, water prevention and sealing lubrication, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a connecting device of hydraulic motor and flabellum for railcar, includes casing, hydraulic motor axle, axle sleeve and flabellum, the lower extreme cover of axle sleeve is epaxial at hydraulic motor, and connects through the mode of flat key between axle sleeve and the hydraulic motor axle, is provided with in the upper end centre bore of axle sleeve and keeps off the key lever, keeps off and leaves axial clearance between the lower terminal surface of key lever and the hydraulic motor axle, keeps off the upper end of key lever and is provided with the disc, through bolt fixed connection between disc and the axle sleeve, the axle sleeve setting is in the casing, is provided with the bearing between casing and the axle sleeve.
Furthermore, the bearings are arranged into two groups, angular contact ball bearings are adopted between the bearings, a back-to-back mounting mode is adopted between the bearings, an inner check ring is arranged between the bearings, a shaft check ring is arranged on the shaft sleeve, the inner ring of the bearing is in interference fit with the outer cylindrical surface of the shaft sleeve, and the outer ring of the bearing is in transition fit with the inner hole of the shell.
Further, the outer diameter of the lower end of the key blocking rod is the same as the shaft diameter of the hydraulic motor shaft, and the axial clearance is set to be 1mm.
Further, an end cover is arranged at the upper end of the shell, and felt ring oil seals are respectively arranged between the outer cylindrical surface of the shaft sleeve and the shell and between the outer cylindrical surface of the shaft sleeve and the end cover.
Further, be provided with oil duct I and oil duct II in the casing respectively, the import income of oil duct II is provided with the glib talker, and the import department of oil duct II is provided with the oiling joint.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the angular contact ball bearing capable of bearing larger axial load is selected, a back-to-back mounting mode of the double bearing with larger rigidity is adopted, the inner ring of the bearing is in interference fit with the outer cylindrical surface of the shaft sleeve, the outer ring of the bearing is in transition fit with the inner hole of the shell, the connecting device can bear larger torque of the hydraulic motor, the operation is stable, and the dynamic balance requirement of the high-power fan blade during operation is met.
2. The upper end of the key blocking rod is disc-shaped, is fixed above an inner hole of the shaft sleeve by bolts, can play a role in sealing, dust prevention and rainwater prevention at ordinary times, has the outer diameter equal to the shaft diameter of the hydraulic motor, has an axial gap of 1mm between the end face of the long rod and the shaft of the hydraulic motor, and can reliably ensure that a flat key on the shaft of the hydraulic motor does not axially drop from a key groove.
3. The double-oiling and double-sealing structure solves the problem that dust prevention, water prevention and sealing lubrication are difficult.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic view of the oil passage structure of the present utility model.
In the figure: the oil seal device comprises a grease nipple 1, a shell 2, a felt ring oil seal 3, a hydraulic motor shaft 4, a flat key 5, an oiling joint 6, an inner check ring 7, an end cover 8, a bolt 9, a key blocking rod 10, a shaft sleeve 11, a fan blade 12, a bearing 13, a check ring for a shaft 14, a disc 15, an oil duct 16I and an oil duct 17 II.
Detailed Description
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a connecting device of hydraulic motor and flabellum for railcar, including casing 2, hydraulic motor axle 4, axle sleeve 11 and flabellum 12, the lower extreme cover of axle sleeve 11 is on hydraulic motor axle 4, and be connected through the mode of flat key 5 between axle sleeve 11 and the hydraulic motor axle 4, flat key 5 is B type structure, the keyway on the hydraulic motor axle 4 is through-type, reduce processing cost, and can transmit high-power moment of torsion, prevent the operation accident that flat key 5 drops from the keyway simultaneously, be provided with in the upper end centre bore of axle sleeve 11 and keep off keybar 10, keep off the lower extreme face of keybar 10 and leave axial clearance between hydraulic motor axle 4, the upper end of keep off keybar 10 is provided with disc 15, pass through bolt 9 fixed connection between disc 15 and the axle sleeve 11, can play sealed dustproof, the rainwater proof effect, axle sleeve 11 sets up in casing 2, be provided with bearing 13 between casing 2 and the axle sleeve 11, bearing 13 sets up into two sets of angular contact ball bearings, just adopt back-to-back mounting mode between bearing 13, be provided with interior retaining ring 7 between bearing 13, be provided with the retaining ring 11, be provided with the axle sleeve 14 on the axle sleeve 11 for interference, for the axial displacement of bearing 13 and the outer race for the bearing 13, the bearing is the outer race is the bearing of the outer race of the bearing of the cooperation, and is the bearing is the outer race of the bearing 13.
The outer diameter of the lower end of the key blocking rod 10 is the same as the shaft diameter of the hydraulic motor shaft 4, the axial clearance is set to be 1mm, and the key blocking rod 10 can limit the axial displacement of the flat key 5 on the hydraulic motor shaft 4.
The upper end of the shell 2 is provided with an end cover 8, a felt ring oil seal 3 is respectively arranged between the outer cylindrical surface of the shaft sleeve 11 and the shell 2 and between the outer cylindrical surface of the shaft sleeve 11 and the end cover 8, and the felt ring seal 3 is made of wool felt, so that bearing grease can be effectively prevented from overflowing and being dustproof.
Be provided with oil duct I16 and oil duct II 17 in the casing 2 respectively, the import of oil duct II 17 is gone into and is provided with glib talker 1, and the import department of oil duct II 17 is provided with oiling joint 6, and two kinds of oiling structural style can let the operator have more kinds, more multi-direction filling selection.
While the basic principles of the utility model have been shown and described, there are various changes and modifications to the utility model, which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a connecting device of hydraulic motor and flabellum for railcar, includes casing (2), hydraulic motor axle (4), axle sleeve (11) and flabellum (12), its characterized in that: the lower extreme cover of axle sleeve (11) is on hydraulic motor axle (4), and connect through the mode of parallel key (5) between axle sleeve (11) and the hydraulic motor axle (4), be provided with in the upper end centre bore of axle sleeve (11) and keep off key lever (10), keep off and leave axial clearance between the lower terminal surface of key lever (10) and hydraulic motor axle (4), the upper end of keeping off key lever (10) is provided with disc (15), pass through bolt (9) fixed connection between disc (15) and axle sleeve (11), axle sleeve (11) set up in casing (2), be provided with bearing (13) between casing (2) and axle sleeve (11).
2. The connection device for a hydraulic motor and fan blades for a railway vehicle according to claim 1, wherein: the bearing (13) is arranged into two groups, the bearings (13) are angular contact ball bearings, the bearings (13) are arranged in a back-to-back mounting mode, an inner check ring (7) is arranged between the bearings (13), a shaft check ring (14) is arranged on the shaft sleeve (11), the inner ring of the bearings (13) is in interference fit with the outer cylindrical surface of the shaft sleeve (11), and the outer ring of the bearings (13) is in transition fit with the inner hole of the shell (2).
3. The connection device for a hydraulic motor and fan blades for a railway vehicle according to claim 1, wherein: the outer diameter of the lower end of the key blocking rod (10) is the same as the shaft diameter of the hydraulic motor shaft (4), and the axial clearance is set to be 1mm.
4. The connection device for a hydraulic motor and fan blades for a railway vehicle according to claim 1, wherein: an end cover (8) is arranged at the upper end of the shell (2), and a felt oil seal (3) is respectively arranged between the outer cylindrical surface of the shaft sleeve (11) and the shell (2) and between the outer cylindrical surface of the shaft sleeve (11) and the end cover (8).
5. The connection device for a hydraulic motor and fan blades for a railway vehicle according to claim 1, wherein: oil duct I (16) and oil duct II (17) are arranged in casing (2) respectively, and the import of oil duct II (17) is gone into and is provided with glib talker (1), and the import department of oil duct II (17) is provided with oiling joint (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420097887.XU CN220505395U (en) | 2024-01-16 | 2024-01-16 | Connecting device of hydraulic motor and fan blade for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420097887.XU CN220505395U (en) | 2024-01-16 | 2024-01-16 | Connecting device of hydraulic motor and fan blade for railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505395U true CN220505395U (en) | 2024-02-20 |
Family
ID=89881250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420097887.XU Active CN220505395U (en) | 2024-01-16 | 2024-01-16 | Connecting device of hydraulic motor and fan blade for railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505395U (en) |
-
2024
- 2024-01-16 CN CN202420097887.XU patent/CN220505395U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |