CN109396795A - A kind of needle bearing outer ring pressure heads mechanism - Google Patents
A kind of needle bearing outer ring pressure heads mechanism Download PDFInfo
- Publication number
- CN109396795A CN109396795A CN201811394336.5A CN201811394336A CN109396795A CN 109396795 A CN109396795 A CN 109396795A CN 201811394336 A CN201811394336 A CN 201811394336A CN 109396795 A CN109396795 A CN 109396795A
- Authority
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- China
- Prior art keywords
- sleeve
- outer ring
- axle sleeve
- bearing outer
- needle bearing
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention discloses a kind of needle bearing outer ring pressure heads mechanism, including guide part, pressing sleeve, and axle sleeve, pressing sleeve is slidably connected with guide part, axle sleeve one end is fixed with ring flange, mounting groove is provided between ring flange and guide part, the other end of axle sleeve is fixed with end cap, the both ends axle sleeve of close axle sleeve is internally provided with thrust bearing, thrust bearing includes seat ring of the one side with ball-and-socket, rolling element, and blowout patche of the one side with ball-and-socket, seat ring is abutted with axle sleeve, and the one side in seat ring with ball-and-socket is towards rolling element, blowout patche is abutted with oilless bearing, and in blowout patche band ball-and-socket one side backwards to rolling element, oilless bearing is slidably connected with pressing sleeve.Needle bearing outer ring pressure heads mechanism of the present invention, it floats since guide part and pressing sleeve exist radially, so that the centre bore positioning of guide part and engine cylinder body be directed at, such that needle bearing outer ring is quick, smoothly enters cylinder interior, improves the efficiency of press fitting.
Description
Technical field
The invention belongs to engine cylinder body mounting technology fields, and in particular to a kind of needle bearing outer ring pressure heads mechanism.
Background technique
In engine cylinder body assembling process, needle bearing outer ring needs to be packed into the inside of engine cylinder body.Lead in industry
This operation is completed frequently with pressure heads mechanism.But existing pressure head does not have float function, i.e., when the positioning end of pressure head and hair
Pressure head not can be carried out automated location correction when the centre bore of motivation cylinder body deviates, and needle bearing outer ring holds during press fitting
Gouge easily is blocked, thus cannot smoothly be pressed into engine cylinder body, and then causes needle bearing press fitting speed slow, reduces operation effect
Rate；In addition, pressure head, which is withdrawn, to be separated with press, cause press that cannot be pressed the needle bearing outer ring of different location respectively.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of needle bearing outer ring pressure heads mechanisms, solve existing skill
Pressure head cannot carry out automatically the technical issues of position correction in art.
In order to solve the above technical problems, the technical solution adopted by the present invention: a kind of needle bearing outer ring pressure heads mechanism, it is special
Sign is: guide part, pressing sleeve and axle sleeve including coaxial arrangement, the pressing sleeve are located at the outside of guide part and and guide part
It is slidably connected, the axle sleeve is located at the outside of pressing sleeve, and axle sleeve one end is fixed with ring flange, between the ring flange and guide part
It is provided with the mounting groove fixed for needle bearing outer ring, the other end of axle sleeve is fixed with end cap, described in the both ends of axle sleeve
Axle sleeve is internally provided with thrust bearing, and the thrust bearing includes seat ring of the one side with ball-and-socket, rolling element and one side
Blowout patche with ball-and-socket, the seat ring are abutted with axle sleeve, and the one side in seat ring with ball-and-socket, towards rolling element, the blowout patche connects
There is oilless bearing, and backwards to rolling element, the oilless bearing is slidably connected band ball-and-socket one side with pressing sleeve in blowout patche.
Preferably, positioning bushing is provided between thrust bearing described in the inside positioned at axle sleeve.
Preferably, polyurethane rings are respectively arranged between the both ends and thrust bearing of the positioning bushing.
Preferably, it is fixed with guiding axis outside the axle sleeve, and guiding axis is parallel with pressing sleeve, reset is provided in guiding axis
Spring.
Preferably, the end of the guiding axis and pressing sleeve is provided with connection frame, and the end of the guiding axis passes through oil-free
Bushing is fixed with connection frame.
Preferably, the end of the pressing sleeve is provided with gland, is provided with gasket between the gland and pressing sleeve.
Preferably, described in the inside positioned at axle sleeve between blowout patche and end cap, tune is respectively arranged between blowout patche and ring flange
Whole pad.
Preferably, the guide part includes guide rod and the guide sleeve positioned at guide rod end, and guide sleeve and guide rod pass through split pin
Connection.
Preferably, the end of guide rod described in the inside positioned at guide sleeve is fixed with guide head.
Preferably, it is provided with cylindrical pin with internal thread in the guide rod, guide groove is axially offered in the pressing sleeve, it is described interior
Cylindrical pin with external thread slides in guide groove.
Beneficial effects of the present invention: the present invention discloses a kind of needle bearing outer ring pressure heads mechanism, leading including coaxial arrangement
To part, pressing sleeve and axle sleeve, pressing sleeve is located at the outside of guide part and is slidably connected with guide part, and axle sleeve is located at the outside of pressing sleeve,
Axle sleeve one end is fixed with ring flange, and the mounting groove fixed for needle bearing outer ring, axis are provided between ring flange and guide part
The other end of set is fixed with end cap, and the both ends axle sleeve of close axle sleeve is internally provided with thrust bearing, and thrust bearing includes one
Seat ring of the side with ball-and-socket, the blowout patche of rolling element and one side with ball-and-socket, seat ring are abutted with axle sleeve, and band ball-and-socket in seat ring
One side towards rolling element, blowout patche is connected with oilless bearing, and in blowout patche band ball-and-socket one side backwards to rolling element, oilless bearing
It is slidably connected with pressing sleeve.Needle bearing outer ring pressure heads mechanism of the present invention, since guide part and pressing sleeve are deposited radially
Floating so that the centre bore positioning of guide part and engine cylinder body is aligned, enable needle bearing outer ring quickly, it is suitable
The entrance cylinder interior of benefit, improves the efficiency of press fitting.
Detailed description of the invention
Fig. 1 is the cross-sectional view of needle bearing outer ring pressure heads mechanism；
Fig. 2 is the structural schematic diagram of thrust bearing；
Fig. 3 is the attachment structure schematic diagram of needle bearing outer ring pressure heads mechanism and engine cylinder body；
Fig. 4 is the cross-sectional view of needle bearing outer ring pressure heads mechanism and engine cylinder body；
Appended drawing reference in figure, 1- guide part, 1.1- guide rod, 1.2- guide sleeve；2- pressing sleeve；3- axle sleeve；4- split pin；5- guiding
Head；6- ring flange, 6.1- mounting groove；7- end cap；8- thrust bearing, 8.1- seat ring, the one side with ball-and-socket in 8.1.1- seat ring,
8.2- rolling element, 8.3- blowout patche, band ball-and-socket one side in 8.3.1- blowout patche；9- oilless bearing；10- adjusting pad；11- positioning lining
Set；12- gasket；13- polyurethane rings；14- bushing；15- mounting bracket；16- positioning sleeve；17- guiding axis；18- reset spring；
19- connection frame；20- oil-free bushing；21- gland；22- cylindrical pin with internal thread；23- needle bearing outer ring.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of needle bearing outer ring pressure heads mechanism, as shown in Figure 1, including guide part 1, pressing sleeve 2 and the axis of coaxial arrangement
Set 3.In the present embodiment, guide part 1 includes guide rod 1.1 and the guide sleeve 1.2 positioned at guide rod end, is offered inside guide sleeve 1.2
Through slot 1.2.1, guide sleeve 1.2 are connect with guide rod 1.1 by split pin 4.It can be abutted and be started to avoid guide sleeve using split pin connection
Guide sleeve axially loaded is excessive and cause the guide sleeve end contacted with engine cylinder body impaired after machine cylinder body.It leads inside positioned at guide sleeve
The end of bar 1.1 is fixed with guide head 5.Guide head with cylinder center hole for being positioned.Pressing sleeve 2 is located at the outer of guide rod 1.1
It portion and is slidably connected with guide rod 1.1.Axle sleeve 3 is located at the outside of pressing sleeve 2, and 3 one end of axle sleeve is fixed with ring flange 6, and 6 sets of ring flange
It is located at the outside of guide rod 1.1, the mounting groove 6.1 fixed for needle bearing outer ring 23 is provided between ring flange 6 and guide rod 1.1.
The other end of axle sleeve 3 is fixed with end cap 7.In order to realize guide rod and pressing sleeve floating in the radial direction, close to the both ends of axle sleeve
The inside of axle sleeve 3 is respectively arranged with thrust bearing 8.As shown in Fig. 2, thrust bearing 8 include seat ring 8.1 of the one side with ball-and-socket,
The blowout patche 8.3 of rolling element 8.2 and one side with ball-and-socket.Seat ring 8.1 is abutted with axle sleeve 3, and with the one side of ball-and-socket in seat ring
8.1.1 towards rolling element 8.2, blowout patche 8.3 connects oilless bearing 9, and in blowout patche band ball-and-socket one side 8.3.1 backwards to rolling element
8.2.Adjusting pad 10 is respectively arranged between two thrust bearings 8 and ring flange 6 and end cap 7.Two thrust axis in order to prevent
Generation axial float is held, positioning bushing 11 is provided between two thrust bearings 8, positions and is arranged between bushing 11 and blowout patche 8.3
There is gasket 12.In order to overcome the gravity of guide rod, avoids guide rod sagging when laterally disposed, position between bushing 11 and gasket 12
It is additionally provided with polyurethane rings 13.Polyurethane rings, which are arranged, can guarantee that the center line of guide rod and the center line of axle sleeve are consistent.Nothing
Oil bearing 9 is slidably connected with pressing sleeve 2.In the present embodiment, oilless bearing 9 setting there are two, the position of two oilless bearings 9 with push away
The position of power bearing 8 is corresponding.Axial float occurs for two oilless bearings in order to prevent, is provided between two oilless bearings 9
Bushing 14.
As shown in Figures 3 and 4, at work, the centre bore of the guide head in guide rod and engine cylinder body positions.If guide head
And the central hole location of engine cylinder body is there are when deviation, and due to the presence of thrust bearing, blowout patche can occur along rolling element
Movement radially, and then guide rod is driven radially to float with pressing sleeve generation.Therefore by radially adjusting guide rod, so that guide rod
In guide head alignment engine cylinder body centre bore so that needle bearing outer ring can quickly, smoothly enter cylinder body
Inside improves the efficiency of press fitting.
It is fixed there are two mounting bracket 15 in axle sleeve 3 in the present embodiment, it is fixed with positioning sleeve 16 inside mounting bracket 15,
Guiding axis 17 is fixed in positioning sleeve 16.Gasket 12 is fixed with positioned at the end of the side guiding axis of mounting bracket.Guiding axis 17
It is arranged in parallel with pressing sleeve 2, reset spring 18 is provided in guiding axis 17.The end of guiding axis 17 and pressing sleeve 2 is provided with connection
The end of frame 19, guiding axis 17 is fixed by oil-free bushing 20 and connection frame 19.One end of reset spring 18 by gasket 12 with
Positioning sleeve 16 abuts, and the other side of reset spring 18 is abutted by gasket 12 with oil-free bushing 20.It is led positioned at oil-free bushing side
Gasket 12 is fixed with to the end of axis 17.The end of pressing sleeve 2 is fixed with gland 21, is provided with gasket between gland 21 and pressing sleeve 2
12.After press forces in gland, for gland by external force on pressing sleeve, power is acted on oil-free bushing by connecting bracket by pressing sleeve
On, so that oil-free bushing suppresses reset spring, after needle bearing outer ring is pressed into engine cylinder body inside by pressing sleeve, press is not
Gland is forced in again, at this point, reset spring discharges compressed elastic force, reset spring drives oil-free bushing sliding along guiding axis
Dynamic, oil-free bushing drives pressing sleeve to return by connection frame.When oil-free bushing reaches the end position of guiding axis, due to being oriented to
The limitation of axis end pad, pressure head stopping is withdrawn, so that pressure head is separated with press.
In order in pressing sleeve pressing process, the movement in axial direction only occurs for pressing sleeve without radially rotating, this implementation
In example, cylindrical pin with internal thread 22 is provided in guide rod 1.1, pressing sleeve 2 is axial to offer guide groove (not marking in figure), internal screw thread
Straight pin 22 slides in guide groove.Cylindrical pin with internal thread plays the role of limiting guide rod and pressing sleeve relative position.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of needle bearing outer ring pressure heads mechanism, it is characterised in that: guide part, pressing sleeve and axle sleeve including coaxial arrangement,
The pressing sleeve is located at the outside of guide part and is slidably connected with guide part, and the axle sleeve is located at the outside of pressing sleeve, axle sleeve one end
Be fixed with ring flange, be provided with the mounting groove fixed for needle bearing outer ring between the ring flange and guide part, axle sleeve it is another
One end is fixed with end cap, is internally provided with thrust bearing close to axle sleeve described in the both ends of axle sleeve, the thrust bearing includes
Seat ring of the one side with ball-and-socket, the blowout patche of rolling element and one side with ball-and-socket, the seat ring are abutted with axle sleeve, and in seat ring
For one side with ball-and-socket towards rolling element, the blowout patche connects oilless bearing, and in blowout patche band ball-and-socket one side backwards to rolling element,
The oilless bearing is slidably connected with pressing sleeve.
2. a kind of needle bearing outer ring pressure heads mechanism according to claim 1, it is characterised in that: described in the inside positioned at axle sleeve
Positioning bushing is provided between thrust bearing.
3. a kind of needle bearing outer ring pressure heads mechanism according to claim 2, it is characterised in that: the both ends of the positioning bushing
Polyurethane rings are respectively arranged between thrust bearing.
4. a kind of needle bearing outer ring pressure heads mechanism according to claim 1, it is characterised in that: be fixed with outside the axle sleeve
Guiding axis, and guiding axis is parallel with pressing sleeve, and reset spring is provided in guiding axis.
5. a kind of needle bearing outer ring pressure heads mechanism according to claim 4, it is characterised in that: the guiding axis and pressing sleeve
End be provided with connection frame, the end of the guiding axis is fixed by oil-free bushing and connection frame.
6. a kind of needle bearing outer ring pressure heads mechanism according to claim 5, it is characterised in that: the end of the pressing sleeve is arranged
There is gland, is provided with gasket between the gland and pressing sleeve.
7. a kind of needle bearing outer ring pressure heads mechanism according to claim 1, it is characterised in that: described in the inside positioned at axle sleeve
Adjusting pad is respectively arranged between blowout patche and end cap, between blowout patche and ring flange.
8. a kind of needle bearing outer ring pressure heads mechanism according to claim 1, it is characterised in that: the guide part includes guide rod
And the guide sleeve positioned at guide rod end, guide sleeve and guide rod pass through split pin connection.
9. a kind of needle bearing outer ring pressure heads mechanism according to claim 8, it is characterised in that: described in the inside positioned at guide sleeve
The end of guide rod is fixed with guide head.
10. a kind of needle bearing outer ring pressure heads mechanism according to claim 9, it is characterised in that: be provided in the guide rod
Cylindrical pin with internal thread axially offers guide groove in the pressing sleeve, and the cylindrical pin with internal thread slides in guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394336.5A CN109396795B (en) | 2018-11-21 | 2018-11-21 | Needle bearing outer ring pressure head mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394336.5A CN109396795B (en) | 2018-11-21 | 2018-11-21 | Needle bearing outer ring pressure head mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109396795A true CN109396795A (en) | 2019-03-01 |
| CN109396795B CN109396795B (en) | 2024-04-16 |
Family
ID=65474533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394336.5A Active CN109396795B (en) | 2018-11-21 | 2018-11-21 | Needle bearing outer ring pressure head mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109396795B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773975A (en) * | 2019-10-29 | 2020-02-11 | 天永机械电子（太仓）有限公司 | Input shaft rear bearing pressure head capable of automatically overcoming coaxiality error |
| CN110814699A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Axial floating pressure head |
| CN116329903A (en) * | 2022-12-14 | 2023-06-27 | 重庆嘉陵特种装备有限公司 | Soft metal sleeve pipe cartridge pole |
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|---|---|---|---|---|
| RU1810268C (en) * | 1991-01-09 | 1993-04-23 | Белорусский Институт Инженеров Железнодорожного Транспорта | Device for assembling parts of shaft-bushing type by press-fitting |
| RU51924U1 (en) * | 2005-10-20 | 2006-03-10 | Открытое акционерное общество "АВТОВАЗ" | ADAPTER FOR INSTALLATION OF SEAL RINGS |
| CN103273309A (en) * | 2013-05-20 | 2013-09-04 | 合肥凯邦电机有限公司 | Center-adjusting device for pressing and assembling bearing |
| CN103447804A (en) * | 2013-09-25 | 2013-12-18 | 十堰达博科工贸有限公司 | Pressure head device capable of automatically correcting center positioning deviation |
| CN104368964A (en) * | 2014-10-31 | 2015-02-25 | 无锡市安捷脚手架有限公司 | Floating type bolt tightening device |
| CN106141629A (en) * | 2015-03-23 | 2016-11-23 | 湖北汽车工业学院 | A kind of suspension type bearing press |
| CN108591169A (en) * | 2018-06-04 | 2018-09-28 | 安徽瑞铁轨道装备有限公司 | A kind of railway wheel is top to bearing press mounting constant pressure and the oil cylinder of quick change guide sleeve |
| CN210254992U (en) * | 2019-04-18 | 2020-04-07 | 大连现代辅机开发制造有限公司 | Split type main bearing bush press-fitting device |
-
2018
- 2018-11-21 CN CN201811394336.5A patent/CN109396795B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1810268C (en) * | 1991-01-09 | 1993-04-23 | Белорусский Институт Инженеров Железнодорожного Транспорта | Device for assembling parts of shaft-bushing type by press-fitting |
| RU51924U1 (en) * | 2005-10-20 | 2006-03-10 | Открытое акционерное общество "АВТОВАЗ" | ADAPTER FOR INSTALLATION OF SEAL RINGS |
| CN103273309A (en) * | 2013-05-20 | 2013-09-04 | 合肥凯邦电机有限公司 | Center-adjusting device for pressing and assembling bearing |
| CN103447804A (en) * | 2013-09-25 | 2013-12-18 | 十堰达博科工贸有限公司 | Pressure head device capable of automatically correcting center positioning deviation |
| CN104368964A (en) * | 2014-10-31 | 2015-02-25 | 无锡市安捷脚手架有限公司 | Floating type bolt tightening device |
| CN106141629A (en) * | 2015-03-23 | 2016-11-23 | 湖北汽车工业学院 | A kind of suspension type bearing press |
| CN108591169A (en) * | 2018-06-04 | 2018-09-28 | 安徽瑞铁轨道装备有限公司 | A kind of railway wheel is top to bearing press mounting constant pressure and the oil cylinder of quick change guide sleeve |
| CN210254992U (en) * | 2019-04-18 | 2020-04-07 | 大连现代辅机开发制造有限公司 | Split type main bearing bush press-fitting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773975A (en) * | 2019-10-29 | 2020-02-11 | 天永机械电子（太仓）有限公司 | Input shaft rear bearing pressure head capable of automatically overcoming coaxiality error |
| CN110814699A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Axial floating pressure head |
| CN116329903A (en) * | 2022-12-14 | 2023-06-27 | 重庆嘉陵特种装备有限公司 | Soft metal sleeve pipe cartridge pole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109396795B (en) | 2024-04-16 |
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