CN207617423U - A kind of bottom flatcar roll wheel assembly and its special installs fixture - Google Patents
A kind of bottom flatcar roll wheel assembly and its special installs fixture Download PDFInfo
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- CN207617423U CN207617423U CN201721677550.2U CN201721677550U CN207617423U CN 207617423 U CN207617423 U CN 207617423U CN 201721677550 U CN201721677550 U CN 201721677550U CN 207617423 U CN207617423 U CN 207617423U
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- bearing
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- pedestal
- mounting hole
- wheel assembly
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Abstract
The utility model discloses a kind of bottom flatcar roll wheel assembly and its special installs fixtures, belong to Automatic manual transmission field of tool, roller bearing assembly precision can be improved by being intended to provide one kind, a kind of bottom flatcar roll wheel assembly for the advantages of extending the service life of bottom flatcar idler wheel and its special installs fixture, its key points of the technical solution are that：Including roller body and bearing, bearing mounting hole and preformed hole are coaxially offered in the roller body, the bearing is adapted to bearing mounting hole, offers several location holes respectively on two end faces of the roller body, the axial direction of the location hole is parallel with the axial direction of bearing mounting hole；The bearing mounting hole both ends coaxially offer flaring, the flaring partly roller body upper table constantly becomes smaller towards bearing mounting hole and forms the first guiding slope without leave.
Description
Technical field
The utility model is related to Automatic manual transmission tool, more particularly to a kind of bottom flatcar roll wheel assembly and its special installation folder
Tool.
Background technology
Bottom flatcar is bearing and the walking mechanism of horizontal pulled gate, is played in the operational process of horizontal pulled gate highly important
Effect, the service life of bottom flatcar directly affect the normal operation of gate.According to the previous bottom flatcar source of damage, the overwhelming majority is
Bearing damage in idler wheel causes, therefore the quality of bearing assembling quality determines the service life of bottom flatcar.
The Chinese patent of Publication No. CN204828329U discloses a kind of roller bearing pressing clamp, including ontology, this
Pressure head, limiting stand and suit column are disposed on body, pressure head is for accepting pressure equipment；Limiting stand is for abutting roller bearing
Outer ring side wall；Be placed on the roller assembly of roller bearing in suit column, the roller assembly include roller bearing retainer and
The roller being set on retainer；Further include elastic ring, elastic ring is coated on suit column.
This roller bearing pressing clamp, pressure head are used to abut the outer of roller bearing for accepting pressure equipment, limiting stand
The side wall of circle is set with the roller assembly that roller bearing is placed in column, is set on column and is provided with elastic ring, when roller assembly is placed on
When filling on column, elastic ring limits the radially movable space of roller assembly so that bearing is not easily susceptible to roller bearing when it is assembled
The injury of press mounting tool, but when bearing is pressed into idler wheel by fixture, whether bearing can steadily, accurately be pressed into, will be into
One step influences the quality of bearing, influences the service life of idler wheel.
Utility model content
First purpose of the utility model is to provide a kind of bottom flatcar roll wheel assembly, and roller bearing assembly can be improved by having
The advantages of precision, service life to extend bottom flatcar idler wheel.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of bottom flatcar roller group
Part, including roller body and bearing coaxially offer bearing mounting hole and preformed hole, the bearing and axis in the roller body
Hold mounting hole adaptation, offer several location holes on two end faces of the roller body respectively, the axial direction of the location hole with
The axial direction of bearing mounting hole is parallel；
The bearing mounting hole both ends coaxially offer flaring, the flaring partly without leave roller body upper table towards bearing
Mounting hole constantly becomes smaller and forms the first guiding slope.
By using above-mentioned technical proposal, bearing is mounted on to the bearing mounting hole of roller body by special installs fixture
Interior, location hole cooperates with installs fixture and plays positioning action to installs fixture, and the first guiding slope is in bearing installation process
In play guiding function, cooperate in bearing and bearing mounting hole, when bearing is fit into bearing peace by special installs fixture
When filling in hole, if bearing has a little dislocation, bearing that can slide into bearing mounting hole along the first guiding slope with bearing mounting hole,
Damage of the bearing caused by rigid contact to effectively reduce bearing and roller body, to effectively increase roller bearing assembly
Precision extends the service life of bottom flatcar idler wheel.
Further, the junction on the first guiding slope and bearing mounting hole end is in arc transition.
The junction arc transition on slope and bearing mounting hole is guided by using above-mentioned technical proposal, first, further
Improve guiding protective effect of the guiding slope to bearing.
Further, the first guiding ramped surfaces are provided with wearing layer.
By using the protection that above-mentioned technical proposal, wearing layer carry out flaring, reduce in bearing installation process to idler wheel
The injury of ontology, to extend the service life of bottom flatcar idler wheel.
Second purpose of the utility model is to provide a kind of special installs fixture of bottom flatcar roll wheel assembly, and having can carry
The advantages of high roller bearing assembly precision, service life to extend bottom flatcar idler wheel.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of special installs fixture of bottom flatcar roll wheel assembly, including compression bar body and pedestal, the compression bar body include one
The height of molding pressure head, limiting stand and suit column, the suit column is less than the height of bearing, if the base top surface is installed with
Positioning column corresponding with location hole is done, the end face of the limiting stand is provided with the second guiding being adapted to the first guiding slope tiltedly
Slope.
By using above-mentioned technical proposal, positioning column is corresponding with location hole, plays the position-limiting action to pedestal, reduces bearing
Dislocation is generated in installation process between pedestal and roller body, bearing is fit into bearing installation by the second guiding slope in fixture
When in hole, the second guiding slope is abutted with the first guiding slope, and positioning action is played on the second guiding slope, to improve idler wheel
Bearing assembly precision extends the service life of bottom flatcar idler wheel.
Further, the base center is installed with positioning convex platform, and the radius of the positioning convex platform and the internal diameter of bearing are suitable
Match, the sum of the positioning convex platform and the height of suit column are less than the height of bearing.
By using above-mentioned technical proposal, positioning convex platform plays the role of being centered about to bearing, and bearing is mounted on bearing
In gap between mounting hole and positioning convex platform, the phenomenon that bearing misplaces is effectively reduced, and then improve the assembly precision of bearing,
Extend the service life of bottom flatcar idler wheel.
Further, the base top surface is installed with anti-slip rubber layer.
By using above-mentioned technical proposal, anti-slip rubber layer effectively increases pedestal and the connective stability of roller body,
The relative dislocation phenomenon of pedestal and roller body is reduced, and anti-slip rubber layer plays a protective role to pedestal, extends fixture
Service life.
Further, the middle part of the suit column is coaxially fixed with pilot pin, and the base center offers and pilot pin
The positioning through hole of adaptation.
By using above-mentioned technical proposal, in the assembling process of bearing, pilot pin is first inserted into bearing mounting hole, if fixed
Position needle is just pierced by out of pedestal positioning through hole, then bearing is located just at the center of bearing mounting hole, if pilot pin and pedestal
It contradicts, then the relative position for adjusting bearing and bearing mounting hole, the setting of pilot pin is needed to further improve bearing installation
Precision facilitates the assembly of bearing.
Further, the pedestal is cylinder, and the diameter of the pedestal is more than bearing mounting hole between preformed hole
Distance.
By using above-mentioned technical proposal, the pedestal of larger area makes the press fitting being subject in the installation process of bearing make
It is firmly relatively uniform, improve the service life of pedestal.
Further, the pedestal is equipped with fixing threaded hole, is equipped in the fixing threaded hole and is adapted to fixing threaded hole
Fixing screws, the fixing screws from base end face penetrate fixing threaded hole and be pierced by the top of the preformed hole, the fixed spiral shell
Nail end thread is connected with fixing nut；
The preformed hole both ends are respectively arranged with adjustment block, and the one end and pedestal for being located at the adjustment block of preformed hole lower end are pasted
It closes, the other end is bonded with the lower surface of roller body；It is bonded with fixing nut positioned at one end of the adjustment block of preformed hole upper end, separately
One end is bonded with the upper surface of roller body；The size of the adjustment block is more than the aperture of reserved bore ends, in the adjustment block
Offer the connecting hole being adapted to fixing screws.
By using above-mentioned technical proposal, fixing screws and fixing nut are used in conjunction with each other, and improve pedestal and rolling
The stable connection for taking turns ontology is fixed, reduces in the installation process of bearing and generates relative vibration between pedestal, to influence bearing
Installation accuracy.The setting of adjustment block enhances pedestal and the opposite active area of roller body, and above roller body
Adjustment block so that fixing nut need not have prodigious size, be against in roller body by adjusting block, fixing nut make
Upper convenience for adjustment block can play the clamping action to roller body and pedestal.
In conclusion the utility model has the advantages that：
1. using first slope, to reduce the damage of bearing, bearing enters bearing mounting hole along first slope, carries
The high precision of bearing installation, to extend the service life of bottom flatcar idler wheel；
2. using positioning column and location hole, to reduce the relative dislocation phenomenon of pedestal and roller body, improve
The precision of bearing installation；
3. using pilot pin and positioning through hole, to generate the precision for further increasing bearing installation, bearing is facilitated to fill
The effect matched.
Description of the drawings
Fig. 1 is in embodiment 1 for embodying whole structural schematic diagram；
Fig. 2 is the cross-sectional view for embodying roller body in embodiment 1；
Fig. 3 is the portions the A enlarged diagram for embodying the first guiding slope in Fig. 2；
Fig. 4 is in embodiment 2 for embodying bottom flatcar roll wheel assembly and its explosion knot of special installs fixture connection relation
Structure schematic diagram；
Fig. 5 is the portions the B enlarged diagram for embodying the second guiding slope in Fig. 4；
Fig. 6 is the whole knot for embodying bottom flatcar roll wheel assembly and its special installs fixture connection relation in embodiment 2
Structure schematic diagram；
Fig. 7 is in embodiment 2 for embodying bottom flatcar roll wheel assembly and its section knot of special installs fixture connection relation
Structure schematic diagram.
In figure, 1, roller body；11, bearing mounting hole；111, it is flared；1111, the first guiding slope；1112, wearing layer；
12, preformed hole；13, location hole；2, bearing；3, compression bar body；31, pressure head；32, limiting stand；321, the second guiding slope；33, it covers
Fill column；331, pilot pin；4, pedestal；41, positioning column；42, positioning convex platform；43, anti-slip rubber layer；44, positioning through hole；45, solid
Determine screw hole；451, fixing screws；4511, fixing nut；5, adjustment block；51, connecting hole.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment 1：A kind of bottom flatcar roll wheel assembly, as shown in Figure 1, including roller body 1 and bearing 2, in roller body 1
Bearing mounting hole 11 and preformed hole 12 coaxially are offered, bearing 2 is adapted to bearing mounting hole 11.
As shown in Fig. 2, offering several location holes 13, the axial direction of location hole 13 respectively on two end faces of roller body 1
It is parallel with the axial direction of bearing mounting hole 11.11 both ends of bearing mounting hole coaxially offer flaring 111.
As shown in figure 3,111 top of flaring is equipped with the first guiding slope 1111, the first guiding with 11 end of bearing mounting hole
The junction of slope 1111 and 11 end of bearing mounting hole is in arc transition, is provided in the first guiding 1111 surface of slope wear-resisting
Layer 1112.When bearing 2（Referring to Fig. 1）When being fit into bearing mounting hole 11 by special installs fixture, if bearing 2 is pacified with bearing
There is a little dislocation in dress hole 11, and bearing 2 can slide into 2 mounting hole 11 of bearing along the first guiding slope 1111, to effectively reduce
Bearing 2 is damaged with bearing 2 caused by the rigid contact of roller body 1.
Embodiment 2：A kind of special installs fixture of bottom flatcar roll wheel assembly, as shown in figure 4, including compression bar body 3 and pedestal
4, compression bar body 3 and the mutual cooperation of pedestal 4 can realize the installation to 1 bearing 2 of roller body.
As shown in figure 4, compression bar body 3 includes integrally formed pressure head 31, limiting stand 32 and suit column 33.It is set with the height of column 33
For degree less than the height of bearing 2, the middle part of suit column 33 is coaxially fixed with pilot pin 331.
As shown in figure 5, the end face of limiting stand 32 is provided with and the first guiding slope 1111（Referring to Fig. 3）The second of adaptation is drawn
Lead slope 321.
As shown in figure 4, pedestal 4 is cylinder, and the radius of pedestal 4 is more than between bearing mounting hole 11 and preformed hole 12
Distance, the pedestal 4 of larger area improves so that the press fitting force ratio being subject in the installation process of bearing 2 is more uniform
The service life of pedestal 4.4 top surface of pedestal is installed with anti-slip rubber layer 43, and 4 top surface of pedestal is installed with several and roller body 1
13 corresponding positioning column 41 of location hole.Positioning column 41, which is plugged in location hole 13, realizes the relatively solid of pedestal 4 and roller body 1
It is fixed.4 center of pedestal is installed with positioning convex platform 42, and the radius of positioning convex platform 42 is adapted to the internal diameter of bearing 2, positioning convex platform 42 and set
Fill the height that the sum of height of column 33 is less than bearing 2.Positioning convex platform 42 plays the work being centered about in the installation process of bearing 2
With the bearing 2 after assembly is in the gap between bearing mounting hole 11 and positioning convex platform 42.4 center of pedestal is further opened with and determines
The positioning through hole 44 that position needle 331 is adapted to, the size of positioning through hole 44 are less than positioning convex platform 42, and positioning through hole 44 is from pedestal 4
Bottom vertically through to the top surface of positioning convex platform 42.
As shown in figure 4, in the assembling process of bearing 2, pilot pin 331 is first inserted into bearing mounting hole 11, if pilot pin
331 are just pierced by out of pedestal 4 positioning through hole 44, then bearing 2 is located just at the center of bearing mounting hole 11, if pilot pin
331 contradict with positioning convex platform 42, then need the relative position for adjusting bearing 2 and bearing mounting hole 11, the setting of pilot pin 331 into
One step improves the precision of the installation of bearing 2, facilitates the assembly of bearing 2.
As shown in figure 4, pedestal 4 is equipped with fixing threaded hole 45, it is equipped in fixing threaded hole 45 and is adapted to fixing threaded hole 45
Fixing screws 451,451 end thread of fixing screws is connected with fixing nut 4511.12 both ends of preformed hole are respectively arranged with tune
Monoblock 5, the size of adjustment block 5 are more than the aperture of 12 end of preformed hole, the connecting hole being adapted to screw are offered in adjustment block 5
51。
As shown in Figure 6 and Figure 7, fixing screws 451 from 4 bottom surface of pedestal penetrate fixing threaded hole 45 and with from the top of preformed hole 12
It is pierced by, fixing screws 451 are used in conjunction with each other with fixing nut 4511, improve the stable connection of pedestal 4 and roller body 1
It is fixed, it reduces and generates relative vibration in the installation process of bearing 2 between pedestal 4, the setting of adjustment block 5 enhances pedestal 4 and rolling
The interaction area for taking turns ontology 1, improves the clamping of fixing screws 451 and fixing nut 4511 to roller body 1 and pedestal 4
Fixed function.
Specific implementation mode:Positioning column 41 on pedestal 4 is plugged in the location hole 13 of roller body 1, and is passed through
The collective effect realization pedestal 4 and roller body of fixing screws 451, fixing nut 4511, adjustment block 5 and idler wheel preformed hole 12
1 is relatively fixed.Then on the suit column 33 bearing 2 being set with, pressure equipment acts on one of pressure head 31 far from suit column 33
End, bearing 2 sequentially enters flaring 111 and bearing mounting hole 11, if pilot pin 331 and positioning convex platform in 2 installation process of bearing
42 tops contradict, then operator is reminded to need to adjust the relative position relation between bearing 2 and 2 mounting hole 11 of bearing, until fixed
Position needle 331 can be pierced by from positioning through hole 44.When the second guiding slope 321 is accurately abutted with the first guiding slope 1111,
Bearing 2 is installed in place.Then first suit column 33 is detached from bearing 2, then dismantles fixing nut 4511 and fixing screws 451,
Pedestal 4 and roller body 1 are separated, the installment work of bearing 2 is so far completed.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (9)
1. a kind of bottom flatcar roll wheel assembly, including roller body (1) and bearing (2), coaxially offered on the roller body (1)
Bearing mounting hole (11) and preformed hole (12), the bearing (2) are adapted to bearing mounting hole (11), it is characterized in that：The idler wheel
Several location holes (13), the axial direction and bearing mounting hole of the location hole (13) are offered on two end faces of ontology (1) respectively
(11) axial direction is parallel；
Bearing mounting hole (11) both ends coaxially offer flaring (111), the partly roller body without leave of the flaring (111)
(1) upper table constantly becomes smaller towards bearing mounting hole (11) and forms the first guiding slope (1111).
2. a kind of bottom flatcar roll wheel assembly according to claim 1, it is characterized in that：It is described first guiding slope (1111) with
The junction of bearing mounting hole (11) end is in arc transition.
3. a kind of bottom flatcar roll wheel assembly according to claim 1, it is characterized in that：Described first guiding slope (1111) table
Face is provided with wearing layer (1112).
4. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claims 1 to 3 any one, including compression bar
Body (3) and pedestal (4), the compression bar body (3) include integrally formed pressure head (31), limiting stand (32) and suit column (33), institute
The height for stating suit column (33) is less than the height of bearing (2), it is characterized in that：Pedestal (4) top surface is installed with several and positioning
Hole (13) corresponding positioning column (41), the end face of the limiting stand (32) is provided with guides slope (1111) to be adapted to first
Second guiding slope (321).
5. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claim 4, it is characterized in that：The pedestal
(4) center is installed with positioning convex platform (42), and the radius of the positioning convex platform (42) is adapted to the internal diameter of bearing (2), the positioning
The sum of boss (42) and the height of suit column (33) are less than the height of bearing (2).
6. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claim 4, it is characterized in that：The pedestal
(4) top surface is installed with anti-slip rubber layer (43).
7. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claim 4, it is characterized in that：The suit column
(33) middle part is coaxially fixed with pilot pin (331), and pedestal (4) center offers the positioning being adapted to pilot pin (331)
Through-hole (44).
8. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claim 4, it is characterized in that：The pedestal
(4) it is cylinder, the diameter of the pedestal (4) is more than the distance between bearing mounting hole (11) to preformed hole (12).
9. a kind of special installs fixture of bottom flatcar roll wheel assembly according to claim 8, it is characterized in that：The pedestal
(4) be equipped with fixing threaded hole (45), is equipped with the fixing screws being adapted to fixing threaded hole (45) in the fixing threaded hole (45)
(451), the fixing screws (451) penetrate fixing threaded hole (45) from pedestal (4) bottom surface and are pierced by at the top of preformed hole (12),
Fixing screws (451) end thread is connected with fixing nut (4511)；
Preformed hole (12) both ends are respectively arranged with adjustment block (5), are located at one end of the adjustment block (5) of preformed hole (12) lower end
It is bonded with pedestal (4), the other end is bonded with the lower surface of roller body (1)；Adjustment block (5) positioned at preformed hole (12) upper end
One end is bonded with fixing nut (4511), and the other end is bonded with the upper surface of roller body (1)；The size of the adjustment block (5)
More than the aperture of preformed hole (12) end, the connecting hole being adapted to fixing screws (451) is offered on the adjustment block (5)
(51)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677550.2U CN207617423U (en) | 2017-12-05 | 2017-12-05 | A kind of bottom flatcar roll wheel assembly and its special installs fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677550.2U CN207617423U (en) | 2017-12-05 | 2017-12-05 | A kind of bottom flatcar roll wheel assembly and its special installs fixture |
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| Publication Number | Publication Date |
|---|---|
| CN207617423U true CN207617423U (en) | 2018-07-17 |
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ID=62821428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677550.2U Active CN207617423U (en) | 2017-12-05 | 2017-12-05 | A kind of bottom flatcar roll wheel assembly and its special installs fixture |
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| Country | Link |
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| CN (1) | CN207617423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277526A (en) * | 2020-11-02 | 2021-01-29 | 合肥工业大学 | Active control vibration damping and noise reduction elastic wheel for rail vehicle |
| CN113580033A (en) * | 2021-07-28 | 2021-11-02 | 重庆宣昶工贸有限公司 | Assembling and positioning device for caster |
-
2017
- 2017-12-05 CN CN201721677550.2U patent/CN207617423U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277526A (en) * | 2020-11-02 | 2021-01-29 | 合肥工业大学 | Active control vibration damping and noise reduction elastic wheel for rail vehicle |
| CN112277526B (en) * | 2020-11-02 | 2021-11-05 | 合肥工业大学 | Active control vibration damping and noise reduction elastic wheel for rail vehicle |
| CN113580033A (en) * | 2021-07-28 | 2021-11-02 | 重庆宣昶工贸有限公司 | Assembling and positioning device for caster |
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