CN208665198U - Bearing assembly, fixed hinge device and rail vehicle - Google Patents
Bearing assembly, fixed hinge device and rail vehicle Download PDFInfo
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- CN208665198U CN208665198U CN201821317916.XU CN201821317916U CN208665198U CN 208665198 U CN208665198 U CN 208665198U CN 201821317916 U CN201821317916 U CN 201821317916U CN 208665198 U CN208665198 U CN 208665198U
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- bearing
- pin shaft
- hinge device
- connecting portion
- fixing seat
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Abstract
The utility model provides a kind of bearing assembly, fixed hinge device and rail vehicle, it is related to rail vehicle technical field, to solve existing metal joint ball bearing and bearing block using being interference fitted, big difficulty, not reproducible utilization and the high technical problem of processing request are disassembled and maintained so as to cause it.It is related to a kind of bearing assembly, comprising: bearing and the bearing block with bearing mounting hole；Bearing is screwed in bearing mounting hole by screw-fashion, and is to be threadedly coupled with bearing block.Further relate to a kind of fixed hinge device, comprising: above-mentioned bearing assembly.Further relate to a kind of rail vehicle, comprising: above-mentioned fixation hinge device.The bearing assembly, fixed hinge device and rail vehicle can be eliminated in the prior art using influence of the stress to bearing life caused by interference fit.
Description
Technical field
The utility model relates to rail vehicle technical fields, more particularly, to a kind of bearing assembly, fixed hinge device and rail
Road vehicle.
Background technique
Low-floor tramcar is one of the rail traffic vehicles risen again at present.In recent years, domestic and foreign manufacturers produce
The vehicle overwhelming majority be 70% or more low-floor railroad vehicle (vehicle distances orbital plane be lower than 40 centimetres), drive energy
The mainly mode supplemented by a variety of new energy based on electric energy.
By taking low-floor tramcar as an example.Articulated mounting is mounted on the coupling part at car body both ends, general using hinge up and down
Fit system is braked, by the force request of the related operating condition such as curve to meet starting when vehicle operation, meets vehicle
Operation demand.
According to different vehicles, the equal different from of the shape and structure of articulated mounting at present.Generally, according to vehicle installation position
Set can be divided into it is lower hinged and upper hinged.Wherein, lower hinged current principal mode are as follows: metal joint ball bearing is packed into a design
In good bearing block, it is connected to form an articulated structure with another stand by pin shaft, then uses the hinged dress
It sets and is connected with two car bodies.
In the prior art, bearing is pushed into bearing block generally by means of external force, the two uses interference fit type.The mistake
The fit system that is full of have the disadvantage in that first is that, it is big that technology dismantles difficulty, dismantles rear bearing block and bearing outer ring by different journeys
Degree is pulled, and not reproducible utilization also can be larger so as to cause maintenance difficulties；Second is that since bearing block and bearing outer ring are adopted
It is high to the matching hole processing request of bearing outer ring and bearing block with interference fit, and be easy to cause bearing due to foozle
The service life of institute's affected by force bearing after assembly.
Utility model content
The first of the utility model is designed to provide a kind of bearing assembly, to solve existing metal joint ball bearing and axis
Seat is held using interference fit, disassembles and maintains big difficulty, not reproducible utilization and the high technology of processing request so as to cause it
Problem.
Bearing assembly provided by the utility model, comprising: bearing and the bearing block with bearing mounting hole.
The bearing is screwed in the bearing mounting hole by screw-fashion, and is to be threadedly coupled with the bearing block.
Further, the outer peripheral surface of the bearing is equipped with the first helicitic texture；It is set on the hole wall of the bearing mounting hole
There is the second helicitic texture matched with first helicitic texture.
Further, the limit knot for limiting the two relative position is additionally provided between the bearing and the bearing block
Structure.
And/or the outer peripheral surface of the bearing is set with for limiting its snap ring moved along axis, the bearing passes through institute
Snap ring swelling is stated in the bearing mounting hole；
Further, the position limiting structure includes that the First terrace being located on the bearing is installed with the bearing is located at
Second step face on the hole wall in hole.
The First terrace and the second step face closely abut.
Bearing assembly provided by the utility model the utility model has the advantages that
It is screw thread since bearing is screwed in bearing mounting hole by screw-fashion, and with bearing block in the bearing assembly
Connection, thus, on the basis of realizing that the two is stably connected with, easy to disassemble, maintenance and elimination use interference in the prior art
Influence of the stress to bearing life caused by cooperating.
As known from the above, the dismounting of bearing assembly is more convenient, and the bearing and bearing block after disassembly are not damaged, can
Recycling；Since bearing and bearing block are to be threadedly coupled, the processing of screw thread is lower relative to the processing request of matching hole.
The second of the utility model is designed to provide a kind of fixed hinge device, for solve existing metal joint ball bearing with
Bearing block disassembles and maintains big difficulty, not reproducible utilization and the high skill of processing request using interference fit, so as to cause it
Art problem.
Fixed hinge device provided by the utility model, comprising: fixing seat, connection component and above-mentioned bearing assembly；It is described
Fixing seat is connect by the connection component with the inner ring of the bearing.
Further, the fixing seat includes first connecting portion, second connecting portion and the card slot formed between the two, institute
Bearing is stated to be placed in the card slot；The connection component includes pin shaft, and the pin shaft wears the first connecting portion, the bearing
Inner ring and the second connecting portion, so that the fixing seat is linked together with the bearing.
Further, one end of the pin shaft and the first connecting portion are interference fitted, the other end of the pin shaft and institute
State second connecting portion interference fit.
Further, the pin shaft includes coaxial arrangement and the first pin shaft and the second pin shaft with embedded hole；Described
One end of one pin shaft is connected in the first connecting portion, and the inner ring of the other end and the bearing is interference fitted, second pin
One end of axis is connected in the second connecting portion, and the inner ring of the other end and the bearing is interference fitted.
The connection component further includes the first screw bolt and nut, and first bolt wears first pin shaft, the axis
Inner ring, second pin shaft held, and first pin shaft and second pin shaft are linked together by the nut.
Fixed hinge device provided by the utility model the utility model has the advantages that
Include above-mentioned bearing assembly in the fixation hinge device, wherein the specific structure of the bearing assembly, connection relationship with
And beneficial effect etc. is described in detail in above-mentioned text, details are not described herein.
The third of the utility model is designed to provide a kind of rail vehicle, to solve existing metal joint ball bearing and axis
Seat is held using interference fit, disassembles and maintains big difficulty, not reproducible utilization and the high technology of processing request so as to cause it
Problem.
Rail vehicle provided by the utility model, comprising: at least two section car bodies and above-mentioned fixation hinge device；A wherein section
Car body is connected by multiple second bolts with bearing block, and another car body is connected by multiple second bolts with fixing seat.
Further, wherein being equipped with the first fixed pin between a section car body and the bearing block, first fixed pin point
It is not interference fit with the bearing block, car body connected to it；Another car body and the fixing seat are equipped with the second fixed pin, institute
Stating the second fixed pin is respectively interference fit with the fixing seat, car body connected to it.
Rail vehicle provided by the utility model the utility model has the advantages that
It include above-mentioned fixation hinge device in the rail vehicle, fixed hinge device includes above-mentioned bearing assembly, wherein should
Specific structure, connection relationship and beneficial effect of bearing assembly etc. are described in detail in above-mentioned text, herein not
It repeats again.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the fractionation structural representation for the bearing assembly that the embodiments of the present invention one provide；
Fig. 2 is the main view after bearing assembly shown in Fig. 1 is installed；
Fig. 3 is the sectional view at A-A shown in Fig. 2；
Fig. 4 is the enlarged diagram at B shown in Fig. 3；
Fig. 5 is the structural schematic diagram of screwing tool；
Fig. 6 is the structural schematic diagram for the fixation hinge device that the embodiments of the present invention two provide；
Fig. 7 is the top view that hinge device is fixed shown in Fig. 6；
Fig. 8 is the sectional view at C-C shown in Fig. 7；
Fig. 9 is the enlarged diagram at D shown in Fig. 8；
Figure 10 is the attachment structure schematic diagram that hinge device is fixed shown in Fig. 6, wherein car body is not shown；
Figure 11 is the top view that the connection structure of hinge device is fixed shown in Figure 10；
Figure 12 is the sectional view at E-E shown in Figure 11.
Icon:
100- bearing；200- bearing block；300- position limiting structure；400- snap ring；500- screwing tool；600- fixing seat；
700- connection component；800- car body；
The first helicitic texture of 110-；120- groove；
210- bearing mounting hole；The second helicitic texture of 220-；
510- disk body；520- protrusion；530- lever；
610- first connecting portion；620- second connecting portion；
The first pin shaft of 710-；The second pin shaft of 720-；The first bolt of 730-；740- nut；
The first fixed pin of 810-；The second fixed pin of 820-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill all other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the mechanism of indication or suggestion meaning or element must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Embodiment one
As shown in Figure 4 and 1, the present embodiment one provides a kind of bearing assembly, comprising: bearing 100 and have bearing installation
The bearing block 200 in hole 210；Bearing 100 is screwed in bearing mounting hole 210 by screw-fashion, and is screw thread company with bearing block 200
It connects.
In the bearing assembly, since bearing 100 is screwed in bearing mounting hole 210 by screw-fashion, and and bearing block
200 be to be threadedly coupled, thus, on the basis of realizing that the two is stably connected with, easy to disassemble, maintenance and elimination are in the prior art
Using influence of the stress to bearing life caused by interference fit.
As known from the above, the dismounting of bearing assembly is more convenient, and the bearing 100 and bearing block 200 after disassembly not will receive
Damage, it is reusable；Since bearing 100 and bearing block 200 are to be threadedly coupled, processing of the processing of screw thread relative to matching hole
It is required that lower.
In the embodiment, the outer peripheral surface of bearing 100 is equipped with the first helicitic texture 110；On the hole wall of bearing mounting hole 210
Equipped with the second helicitic texture 220 matched with the first helicitic texture 110.
On the basis of the above embodiments, it is additionally provided between bearing 100 and bearing block 200 for limiting the two relative position
Position limiting structure 300；And/or the outer peripheral surface of bearing 100 is set with for limiting its snap ring 400 moved along axis, bearing
100 pass through 400 swelling of snap ring in bearing mounting hole 210.
Wherein, position limiting structure 300 includes the First terrace being located on bearing 100 and the hole for being located at bearing mounting hole 210
Second step face on wall；First terrace and second step face closely abut.
When bearing 100 is rotated in place, the First terrace of bearing 100 can connect with the second step face in bearing block 200
Touching, so as to play the role of limit and carrying vertical load.By tool with certain torque by bearing 100 pre-tighten (or
Person uses locking glue)；Meanwhile the snap ring 400 added can also play dual locking effect.
In this embodiment, for the ease of the installation of bearing 100, a circle groove can be set on the outer peripheral surface of bearing 100
120.Wherein, it is illustrated in figure 5 the screwing tool 500 for screwing bearing 100.Specifically, screwing tool 500 includes disk body
510, the protrusion 520 being located on disk body 510, and it is located at lever 530 of the disk body 510 far from raised 520 sides.
In use, protrusion 520 is placed on one by one in groove 120, rotating disk body 510 is held, so that bearing 100 is screwed into
In bearing block 200, and sets certain torque requirement and carry out locking (or other locking modes are such as: glue).
Embodiment two
As shown in Figures 6 to 9, the present embodiment two provides a kind of fixed hinge device, comprising: fixing seat 600, connection component
700 and above-mentioned bearing assembly；Fixing seat 600 is connect by connection component 700 with the inner ring of bearing 100.
Include above-mentioned fixation hinge device in the rail vehicle, wherein the specific structure of the bearing assembly, connection relationship with
And beneficial effect etc. is described in detail in above-mentioned text, details are not described herein.
Specifically, as shown in figure 8, fixing seat 600 includes first connecting portion 610, second connecting portion 620 and between the two
The card slot of formation, bearing 100 are placed in card slot；Connection component 700 includes pin shaft, and pin shaft wears first connecting portion 610, bearing
100 inner ring and second connecting portion 620, makes fixing seat 600 link together with bearing 100.
Wherein, pin shaft can only setting one, one end of pin shaft and first connecting portion 610 be interference fitted, pin shaft it is another
End is interference fitted with second connecting portion 620.
In the embodiment, pin shaft can also include two.Specifically, the first pin including being coaxially disposed and with embedded hole
Axis 710 and the second pin shaft 720；One end of first pin shaft 710 is connected in first connecting portion 610, and the other end is interior with bearing 100
Circle interference fit, one end of the second pin shaft 720 are connected in second connecting portion 620, and the inner ring interference of the other end and bearing 100 is matched
It closes；Connection component 700 further includes the first bolt 730 and nut 740, and the first bolt 730 wears the first pin shaft 710, bearing 100
Inner ring, the second pin shaft 720, and first pin shaft 710 and the second pin shaft 720 are linked together by nut 740.
In the embodiment, bearing 100 is metal joint ball bearing.The freedom of motion of the fixation hinge device meets metal pass
The associated freedom of ball bearing is saved, and can be rotated around tri- directions X/Y/Z, also can satisfy rotation, the side of rail vehicle operation
The working condition requirement of rolling, pitching.
Embodiment three
As shown in Figure 10 to Figure 12, the present embodiment three provides a kind of rail vehicle, comprising: 800 He of at least two section car body
Above-mentioned fixation hinge device；Wherein a section car body 800 is connected by multiple second bolts with bearing block 200, and another car body passes through
Multiple second bolts are connected with fixing seat 600.
It include above-mentioned fixation hinge device in the rail vehicle, fixed hinge device includes above-mentioned bearing assembly, wherein should
Specific structure, connection relationship and beneficial effect of bearing assembly etc. are described in detail in above-mentioned text, herein not
It repeats again.
Specifically, wherein being equipped with the first fixed pin 810, the first fixed pin 810 between a section car body 800 and bearing block 200
It is respectively interference fit with bearing block 200, car body connected to it 800；Another car body 800 is equipped with second with fixing seat 600 and consolidates
Rationed marketing 820, the second fixed pin 820 are respectively interference fit with fixing seat 600, car body connected to it 800, can be played in this way
It eliminates in rail vehicle self weight and operation to shearing force caused by the second bolt, so as to improve the reliability of the second bolt.
Wherein, the first fixed pin 810 and the second fixed pin 820 added, can eliminate the second bolt by shearing force.The
One fixed pin 810 and the second fixed pin 820 are respectively positioned on the center line of fixed hinge device, facilitate fixed hinge device and car body 800
It is positioned when installation.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of bearing assembly characterized by comprising bearing (100) and the bearing block with bearing mounting hole (210)
(200)；
The bearing (100) is screwed in the bearing mounting hole (210) by screw-fashion, and is with the bearing block (200)
It is threadedly coupled.
2. bearing assembly according to claim 1, which is characterized in that the outer peripheral surface of the bearing (100) is equipped with first
Helicitic texture (110)；
The hole wall of the bearing mounting hole (210) is equipped with the second screw thread knot matched with first helicitic texture (110)
Structure (220).
3. bearing assembly according to claim 2, which is characterized in that the bearing (100) and the bearing block (200) it
Between be additionally provided with position limiting structure (300) for both limiting relative position；
And/or the outer peripheral surface of the bearing (100) is set with for limiting its snap ring (400) moved along axis, the bearing
(100) through the snap ring (400) swelling in the bearing mounting hole (210).
4. bearing assembly according to claim 3, which is characterized in that the position limiting structure (300) includes being located at the axis
It holds First terrace on (100) and is located at second step face on the hole walls of the bearing mounting hole (210)；
The First terrace and the second step face closely abut.
5. a kind of fixed hinge device characterized by comprising fixing seat (600), connection component (700) and the claims
The described in any item bearing assemblies of 1-4；
The fixing seat (600) is connect by the connection component (700) with the inner ring of the bearing (100).
6. fixed hinge device according to claim 5, which is characterized in that the fixing seat (600) includes first connecting portion
(610), card slot second connecting portion (620) and formed between the two, the bearing (100) are placed in the card slot；
The connection component (700) includes pin shaft, and the pin shaft wears the first connecting portion (610), the bearing (100)
Inner ring and the second connecting portion (620), make the fixing seat (600) link together with the bearing (100).
7. fixed hinge device according to claim 6, which is characterized in that one end of the pin shaft and the first connecting portion
(610) it is interference fitted, the other end of the pin shaft and the second connecting portion (620) are interference fitted.
8. fixed hinge device according to claim 6, which is characterized in that the pin shaft includes coaxial arrangement and has insertion
First pin shaft (710) and the second pin shaft (720) in hole；
One end of first pin shaft (710) is connected on the first connecting portion (610), the other end and the bearing (100)
Inner ring interference fit, one end of second pin shaft (720) is connected on the second connecting portion (620), the other end and institute
State the inner ring interference fit of bearing (100)；
The connection component (700) further includes the first bolt (730) and nut (740), and first bolt (730) wears described
First pin shaft (710), the inner ring of the bearing (100), second pin shaft (720), and will be described by the nut (740)
First pin shaft (710) and second pin shaft (720) link together.
9. a kind of rail vehicle characterized by comprising at least any one of two section car bodies (800) and the claims 5-8 institute
The fixation hinge device stated；
Wherein a section car body (800) is connected by multiple second bolts with bearing block (200), and another car body (800) passes through multiple
Second bolt is connected with fixing seat (600).
10. rail vehicle according to claim 9, which is characterized in that wherein a section car body (800) and the bearing block
(200) the first fixed pin (810) are equipped between, first fixed pin (810) connects with the bearing block (200), with it respectively
The car body (800) connect is interference fit；
Another car body (800) and the fixing seat (600) are equipped with the second fixed pin (820), and second fixed pin (820) is respectively
It is interference fit with the fixing seat (600), car body connected to it (800).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317916.XU CN208665198U (en) | 2018-08-15 | 2018-08-15 | Bearing assembly, fixed hinge device and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317916.XU CN208665198U (en) | 2018-08-15 | 2018-08-15 | Bearing assembly, fixed hinge device and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208665198U true CN208665198U (en) | 2019-03-29 |
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ID=65837636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821317916.XU Active CN208665198U (en) | 2018-08-15 | 2018-08-15 | Bearing assembly, fixed hinge device and rail vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN208665198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056815A (en) * | 2022-07-14 | 2022-09-16 | 株洲时代新材料科技股份有限公司 | Rubber wheel train end hinge mechanism |
-
2018
- 2018-08-15 CN CN201821317916.XU patent/CN208665198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056815A (en) * | 2022-07-14 | 2022-09-16 | 株洲时代新材料科技股份有限公司 | Rubber wheel train end hinge mechanism |
| CN115056815B (en) * | 2022-07-14 | 2024-03-12 | 株洲时代新材料科技股份有限公司 | Train end hinging mechanism of rubber-tyred train |
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