CN219911556U - Gear type diaphragm coupling for rail transit vehicle driving device - Google Patents
Gear type diaphragm coupling for rail transit vehicle driving device Download PDFInfo
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- CN219911556U CN219911556U CN202321376765.6U CN202321376765U CN219911556U CN 219911556 U CN219911556 U CN 219911556U CN 202321376765 U CN202321376765 U CN 202321376765U CN 219911556 U CN219911556 U CN 219911556U
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- diaphragm
- gear
- disc
- rail transit
- transit vehicle
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- 230000008878 coupling Effects 0.000 title claims abstract description 28
- 238000010168 coupling process Methods 0.000 title claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 28
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 15
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model provides a tooth-type diaphragm coupler for a rail transit vehicle driving device, which comprises a large gear driving disc, a diaphragm assembly connecting piece and a gear box side shaft end, wherein a first side of the large gear driving disc is tightly connected with a large gear of a gear box through end face teeth and a fastening bolt, a second side of the large gear driving disc is tightly connected with the diaphragm assembly connecting piece through the diaphragm bolt, the diaphragm assembly connecting piece is tightly connected with the gear box side shaft end through the diaphragm bolt, a first end of a hollow shaft is connected with a gear box side shaft end through the fastening bolt and the end face teeth, and a second end of the hollow shaft is in transmission connection with the wheel side half coupling.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a tooth-type diaphragm coupler for a rail transit vehicle driving device.
Background
Along with the rapid development of national economy and railway industry, the design structure of various rail transit vehicles is continuously promoted. The traditional scheme of rail transit vehicle bogie drive arrangement is six connecting rod schemes of rubber, and the motor passes through the gear box and gives the gear wheel with moment of torsion transmission, and gear wheel gear hub is equipped with the terminal surface tooth, and the terminal surface tooth passes through fastening bolt and is connected with gear wheel drive dish, and the drive dish passes through six connecting rods of rubber and is connected with hollow shaft, and the hollow shaft passes the gear wheel hole, is connected with six connecting rod structures of opposite side, finally is connected with the wheel through the wheel round pin. Along with the increase of service years, the rubber joints at the joints are easy to age, the joint rigidity is unstable, the joint cannot adapt to large displacement deformation of wheel sets and frameworks, and the rubber joints need to be replaced periodically during later maintenance.
The Chinese patent application with the publication number of CN115042827A discloses a diaphragm tooth type coupler and a bogie with the same, wherein the coupler comprises a coupler body, the coupler body comprises a drum-shaped fluted disc and a transmission disc, a diaphragm is arranged between the drum-shaped fluted disc and the transmission disc, and the drum-shaped fluted disc and the transmission disc are respectively connected with the diaphragm; the axis of the coupling body is perpendicular to the plane where the diaphragm is located, the two ends of the axis of the coupling body are connecting ends, each connecting end comprises a first connecting end located on the drum-shaped fluted disc and a second connecting end located on the transmission disc, end teeth are arranged on the second connecting ends, and a drum-shaped gear ring is arranged on the first connecting ends. The scheme can not influence the diameter of the driving gear shaft and the coupler of the inner diameter of the bearing arranged on the driving gear shaft, and can meet the requirements of a driving system on large transverse displacement and radial displacement capacity between the driving gear shaft and a motor shaft, vibration impact of a high-speed locomotive wheel pair and the like. The shaft coupling of the scheme is used for transmission between the motor and the gear box, and improvement is needed for transmission between the gear box and the axle.
Disclosure of Invention
The purpose of the utility model is that: aiming at the problems in the background technology, an improved tooth-type diaphragm coupler is provided for transmission between a gear box and an axle, and the technical indexes of long service life, easy maintenance, large potential variation capability and the like are met.
In order to achieve the above purpose, the present utility model provides a tooth-type diaphragm coupling for a rail transit vehicle driving device, a gear box side half coupling, a wheel side half coupling and a hollow shaft;
the gear box side half coupling comprises a large gear driving disc, a diaphragm group connecting piece and a gear box side shaft end, wherein a first side of the large gear driving disc is in fastening connection with a large gear of the gear box through end face teeth and fastening bolts, a second side of the large gear driving disc is in fastening connection with the diaphragm group connecting piece through a diaphragm bolt, the diaphragm group connecting piece is in fastening connection with the gear box side shaft end through a diaphragm bolt, and a first end of the hollow shaft is connected with the gear box side shaft end through fastening bolts and end face teeth;
the wheel side half coupling comprises an inner gear ring, an outer gear ring, an axle connecting disc and an end cover, wherein the second end of the hollow shaft is connected with the outer gear ring through a fastening bolt and end face teeth, the outer gear ring is meshed with the inner gear ring, the axle connecting disc and the end cover are connected with the inner gear ring through fastening bolts, and the axle connecting disc is connected with an axle.
Further, three pairs of conical holes are formed in the second side of the large gear driving plate and correspond to one part of end holes of the diaphragm assembly connecting piece, three conical holes are formed in the shaft end of the gear box side and correspond to the other part of end holes of the diaphragm assembly connecting piece, and the diaphragm bolts are inserted into the conical holes and the end holes.
Further, a cone nut is inserted into the end hole, and the cone nut is matched with the diaphragm bolt.
Further, a bellows seal is also provided between the end cap and the ring gear.
Further, the mounting hole of the axle connecting disc is provided with a certain taper, and the inner hole of the outer gear ring is formed with a matched taper.
Further, an oil groove and an oil filling hole are further formed in the position of the mounting hole of the axle connecting disc, and the oil filling hole is used for filling oil into the oil groove for lubrication.
The scheme of the utility model has the following beneficial effects:
the tooth-type diaphragm coupler for the rail transit vehicle driving device is suitable for transmission between a driving device gearbox and an axle, can ensure stable and reliable transmission between the gearbox and the axle, has small axial and radial rigidity while having good torsional rigidity, can effectively offset assembly errors of the driving device, is not easy to age, prolongs the service life of the coupler, and is easy to maintain;
other advantageous effects of the present utility model will be described in detail in the detailed description section which follows.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is two views of a gearbox side half coupling of the present utility model;
fig. 3 is a schematic view of a wheel side half coupling according to the present utility model.
[ reference numerals description ]
1-a gear box side half coupling; 2-wheel side half coupling; 3-hollow shaft; 4-a large gear drive disc; 5-diaphragm set connectors; 6-the side shaft end of the gear box; 7-fastening bolts; 8-a diaphragm bolt; 9-cone nuts; 10-an inner gear ring; 11-an outer gear ring; 12-axle connection disc; 13-end cap.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by different combinations of features/embodiments, where not contradictory, and various possible combinations of features/embodiments in the present utility model are not described further in order to avoid unnecessary repetition.
It should be noted that the terms "disposed" and "connected" should be construed broadly, and may be, for example, directly disposed, mounted, connected, or indirectly disposed, connected through a central element or central structure. In addition, the directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. in the present utility model are directions or positional relationships based on the drawings or the conventional placement state or use state, are merely for convenience of description of the present utility model and for simplification of description, and do not indicate or imply that the structures, features, devices or elements to be referred to must have specific directions, be configured and operated in specific directions, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1 to 3, an embodiment of the present utility model provides a toothed diaphragm coupling for a rail transit vehicle driving device, which includes a gear case side half coupling 1, a wheel side half coupling 2, a hollow shaft 3, and the like.
The gear box side half coupling 1 consists of a large gear driving disc 4, a diaphragm group connecting piece 5 and a gear box side shaft end 6. The first side of the large gear driving disc 4 is in fastening connection with a large gear of the gear box through end face teeth and fastening bolts 7, the second side of the large gear driving disc 4 is in fastening connection with end holes of the diaphragm group connecting piece 5 through three pairs of conical holes through diaphragm bolts 8, and the other three end holes of the diaphragm group connecting piece 5 are in fastening connection with the gear box side shaft end 6 through diaphragm bolts 8. The first end of the hollow shaft 3 passes through the inner holes of the large gear and the large gear driving disc 4 and then is connected with the gear box side shaft end 6 through the fastening bolt 7 and the end face teeth, so that the torque can be effectively transmitted and the assembly, disassembly and maintenance are easy. The diaphragm group connecting piece 5 is used as a connecting transmission structure, so that the coupler has good torsional rigidity and smaller axial and radial rigidity, can effectively offset the assembly error of the driving device, is not easy to age, and prolongs the service life of the coupler.
Specifically, the diaphragm group connector 5 in this embodiment includes a gasket, a bushing, and a stainless steel diaphragm. The stainless steel diaphragm is assembled into a group by a plurality of layers of thin stainless steel base materials through the bushing and the gaskets on the two sides in a small interference press fit mode. Meanwhile, the diaphragm group connecting piece 5 adopts a beam waist structure with a wide gasket position and a narrow transition position, so that the stress is more uniform during transmission, the axial, radial and torsional rigidity are better, and the diaphragm group connecting piece has excellent large displacement deformation adaptability and the like. It can be understood that, in order to ensure the uniformity of stress, the connection points of the diaphragm group connecting piece 5, the large gear driving disc 4 and the gear box side shaft end 6 are staggered in sequence.
Since the large gear driving disc 4 and the gear box side shaft end 6 are provided with the taper holes, the taper nuts 9 can be arranged in the taper holes and connected with the front ends of the diaphragm bolts 8 in a threaded manner, and the stable connection can be realized by virtue of the taper surfaces.
In this embodiment, the wheel-side half coupling 2 is composed of an inner gear ring 10, an outer gear ring 11, an axle connecting disc 12 and an end cover 13, the second end of the hollow shaft 3 is connected with the outer gear ring 11 through a fastening bolt 7 and end face teeth, the outer gear ring 11 is meshed with the inner gear ring 10 through drum teeth, the axle connecting disc 12 and the end cover 13 are both connected with the inner gear ring 10 through the fastening bolt 7, and a corrugated pipe is further assembled between the end cover 13 and the inner gear ring 10 for sealing. Therefore, the wheel side half coupling 2 is also of a detachable structure, and is convenient for later disassembly, assembly and maintenance.
Meanwhile, the mounting hole of the axle connecting disc 12 is provided with a certain taper, and the effective interference is arranged by matching with the axle, so that reliable torque transmission is ensured, and the axle connecting disc can be automatically centered in the assembly process. And, the axle connection pad 12 is matched with the inner hole of the outer gear ring 11, so as to meet the requirement of transverse large displacement of the crowned teeth. The mounting hole is also provided with an oil groove and an oil filling hole, so that the axle connecting disc 12 is convenient to assemble and disassemble, and the process universality is good.
The gear diaphragm coupler provided by the embodiment can ensure stable and reliable transmission between the gear box and the axle, meanwhile, the diaphragm group connecting piece 5 can ensure that the coupler has good torsional rigidity and smaller axial and radial rigidity, can effectively offset the assembly error of the driving device, is not easy to age, prolongs the service life of the coupler, and is easy to maintain.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (6)
1. The tooth-type diaphragm coupler for the rail transit vehicle driving device is characterized by comprising a gear box side half coupler (1), a wheel side half coupler (2) and a hollow shaft (3);
the gear box side half coupling (1) comprises a large gear driving disc (4), a diaphragm group connecting piece (5) and a gear box side shaft end (6), wherein a first side of the large gear driving disc (4) is tightly connected with a large gear of a gear box through end face teeth and a fastening bolt (7), a second side of the large gear driving disc (4) is tightly connected with the diaphragm group connecting piece (5) through a diaphragm bolt (8), the diaphragm group connecting piece (5) is tightly connected with the gear box side shaft end (6) through the diaphragm bolt (8), and a first end of the hollow shaft (3) is connected with the gear box side shaft end (6) through the fastening bolt (7) and the end face teeth;
the wheel side half coupling (2) comprises an inner gear ring (10), an outer gear ring (11), an axle connecting disc (12) and an end cover (13), wherein the second end of the hollow shaft (3) is connected with the outer gear ring (11) through a fastening bolt (7) and end face teeth, the outer gear ring (11) is meshed with the inner gear ring (10), the axle connecting disc (12) and the end cover (13) are connected with the inner gear ring (10) through the fastening bolt (7), and the axle connecting disc (12) is connected with an axle.
2. The toothed diaphragm coupling for a rail transit vehicle driving device according to claim 1, wherein the second side of the large gear driving disc (4) is provided with three pairs of tapered holes corresponding to a part of the end holes of the diaphragm group connecting member (5), the gear case side shaft end (6) is provided with three tapered holes corresponding to another part of the end holes of the diaphragm group connecting member (5), and the diaphragm bolts (8) are inserted into the tapered holes and the end holes.
3. A toothed diaphragm coupling for a rail transit vehicle drive according to claim 2, characterized in that a cone nut (9) is inserted into the end hole, said cone nut (9) being fitted with the diaphragm bolt (8).
4. A toothed diaphragm coupling for a rail transit vehicle drive according to claim 1, characterized in that a bellows seal is also fitted between the end cap (13) and the annulus gear (10).
5. A toothed diaphragm coupling for a rail transit vehicle drive according to claim 1, characterized in that the mounting hole of the axle connection disc (12) is provided with a taper, and the inner bore of the outer ring gear (11) is formed with a matching taper.
6. The tooth-type diaphragm coupling for a rail transit vehicle drive apparatus according to claim 5, wherein the mounting hole position of said axle connecting disc (12) is further provided with an oil groove and an oil filler hole for filling oil into said oil groove with lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376765.6U CN219911556U (en) | 2023-06-01 | 2023-06-01 | Gear type diaphragm coupling for rail transit vehicle driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376765.6U CN219911556U (en) | 2023-06-01 | 2023-06-01 | Gear type diaphragm coupling for rail transit vehicle driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911556U true CN219911556U (en) | 2023-10-27 |
Family
ID=88427654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321376765.6U Active CN219911556U (en) | 2023-06-01 | 2023-06-01 | Gear type diaphragm coupling for rail transit vehicle driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911556U (en) |
-
2023
- 2023-06-01 CN CN202321376765.6U patent/CN219911556U/en active Active
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