CN103481013A - Axle-rolling device - Google Patents
Axle-rolling device Download PDFInfo
- Publication number
- CN103481013A CN103481013A CN201210193554.9A CN201210193554A CN103481013A CN 103481013 A CN103481013 A CN 103481013A CN 201210193554 A CN201210193554 A CN 201210193554A CN 103481013 A CN103481013 A CN 103481013A
- Authority
- CN
- China
- Prior art keywords
- roller
- knife bar
- bearing
- axletree
- roller shaft
- 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
Images
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
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
Abstract
The invention discloses an axle-rolling device, which comprises a roller, a roller shaft, a bearing and a long handle-shaped bar, one end of the roller shaft is fixedly assembled in the inner race of the bearing, the other end of the roller shaft is fixedly assembled in the roller or integrated with the roller, the head of the bar is provided with a round hole, the outer race of the bearing is fixedly assembled in the round hole, and the tail of the bar can be fixedly clamped. The axle-rolling device is suitable for strengthening the surface of an axle by rolling in order to enhance the anti-fatigue strength of the axle.
Description
Technical field
The present invention relates to vehicle manufacturing technology, relate in particular to a kind of axletree rolling device.
Background technology
Axletree is the vital part of vehicle load capacity and safe operation, and the surface property that improves the axletree material can improve wearability, the fatigue resistance of piece surface, thereby extends the service life of axletree.A large amount of research shows the external force finish rolling hardening is carried out in the axletree surface, can improve energetically the anti-fatigue performance of axletree, therefore, in production application, needs a kind of device that carries out effective finish rolling hardening processing for the axletree surface.
Summary of the invention
The invention provides a kind of axletree rolling device, in order to the finish rolling hardening processing is carried out in the axletree surface, improve the fatigue resistance of axletree.
The invention provides a kind of axletree rolling device, comprise: the knife bar of roller, roller shaft, bearing and long handle shape, one end of described roller shaft and the inner ring of described bearing are mounted with, the other end and described roller are mounted with or the other end and described roller are structure as a whole, the head of described knife bar is provided with circular hole, the outer ring of described bearing is mounted with in described circular hole, and the afterbody of described knife bar is for gripping.
In one embodiment, the circular hole of the head of described knife bar is shoulder hole, the outer ring of described bearing is mounted with in the macropore of described shoulder hole, described axletree rolling device also comprises: bearing gland, described bearing gland have at the bottom of the lid that covers described shoulder hole macropore and be positioned at described lid at the bottom of on annular flange flange, in the time of in the macropore of described bearing gland spiral-lock at described shoulder hole, described annular flange flange is in the outer ring of the described bearing of axial compression of described roller shaft.
In one embodiment, the foreign steamer of described roller has curved flanges on edge, and the cross section arc radius of described curved flanges is less than or equal to the arc radius for the treatment of minimum groove on the roll extrusion axletree.
The inner ring of the present invention by bearing and outer ring are mounted with respectively at the circular hole of roller shaft and knife bar, realize when knife bar fixedly the time, and the axletree for the treatment of roll extrusion can drive roller and rotate and roll extrusion is carried out in the surface of axletree, the fatigue resistance on raising axletree surface; Further on the foreign steamer edge of roller, curved flanges is set and can makes the groove on the pair of rollers axletree carry out finish rolling hardening, thereby realize axletree is carried out to comprehensive finish rolling hardening processing; Further adopt bearing gland and shoulder hole to be fixed and to encapsulate bearing, the work middle (center) bearing of making can access fixing and protection effectively, thereby extends the service life of axletree rolling device.
The accompanying drawing explanation
The structural representation that Fig. 1 is axletree rolling device embodiment of the present invention;
The structural representation that Fig. 2 is roller in Fig. 1;
The structural representation that Fig. 3 is roller shaft in Fig. 1;
The structural representation that Fig. 4 is knife bar in Fig. 1;
The structural representation that Fig. 5 is Fig. 1 middle (center) bearing gland;
The monnolithic case structural representation that Fig. 6 is axletree rolling device embodiment of the present invention.
The specific embodiment
Below by by reference to the accompanying drawings, describe the specific embodiment of the embodiment of the present invention in detail.
The structural representation that Fig. 1 is axletree rolling device embodiment of the present invention, the structural representation that Fig. 4 is knife bar in Fig. 1, as shown in Figure 1 and Figure 4, the axletree rolling device of the present embodiment comprises: roller 10, roller shaft 20, the knife bar 40 of bearing 30 and long handle shape, one end of described roller shaft 20 and the inner ring of described bearing 30 are mounted with, the other end and described roller 10 are mounted with or the other end and described roller 10 are structure as a whole, the head 401 of described knife bar 40 is provided with circular hole 403, the outer ring of described bearing 30 is mounted with in described circular hole 403, the afterbody 402 of knife bar 40 is for gripping.
Specifically, after axletree machines, axletree as rolling stock, the roughness on surface is larger, variation due to the shaft section size at the shaft shoulder or escape place, the stress at these positions is more concentrated, so axletree is after long-play, the more concentrated place of these stress ratios easily produces fatigue crack, bring potential safety hazard can to when serious the safe operation of vehicle, be conducive to reduce surperficial roughness by the axletree surface being carried out to roll extrusion, reduce stress, thereby can improve the anti-fatigue performance of axletree.Roller 10 in the axletree rolling device of the present embodiment is to treat the mechanism that rolling surface intensive treatment axletree carries out roll extrusion, its hardness generally is greater than the hardness for the treatment of the roll extrusion axletree, when roller 10 during with axletree Surface Contact until roll extrusion, by roll extrusion, can make the axletree surface local produce small plastic deformation and form strengthening layer, thereby change surface structure, the mechanical property of axletree, improve the anti-fatigue performance of axletree.Bearing in the present embodiment is the parts for supporting rotator commonly used in machinery, its inner ring is separately fixed on the different parts with relative rotary motion from outer ring, in the present embodiment, inner ring and the roller shaft of bearing are fixed, outer ring and knife bar are fixed, and roller shaft is also fixed with roller or be into a single integrated structure with roller, so roller, roller shaft and bearing have same rotation, when knife bar, fixedly the time, roller can rotate around this rotation.During concrete application, by afterbody 402 clampings of the knife bar 40 of the long handle shape in the present embodiment on lathe, the axis of roller 10 is parallel with the axis for the treatment of the roll extrusion axletree, because outer ring and the knife bar 40 of bearing 30 are fixing, the inner ring of bearing 30 and roller shaft 20 are fixing, after the knife bar clamping is fixing, when axletree rotates, axletree drives the roller 10 be in contact with it and rotates, and just can realize the roll extrusion function to axletree.
In practical application, roller 10 can be structure as a whole with roller shaft 20, can be also Split type structure, be that roller shaft and roller are independent part, realize being fixedly connected with of the two by assembling, Split type structure is conducive to the independent processing of each parts, improves the precision of part.When roller 10 and roller shaft 20 are Split type structure, assembly connection between the two can adopt various ways, as key connection etc., for simplifying processing and installing, the two also can adopt interference fit to realize being mounted with, in Fig. 1 example illustrated between roller and roller shaft for adopting interference fit to be connected.
The structural representation that Fig. 2 is roller in Fig. 1, as shown in Figure 2, roller 10 center is provided with for roller 10 being assemblied in to the circular hole 103 on roller shaft 60, circular hole 103 generally can be arranged to shoulder hole, so that the location of pair roller on roller shaft, on roller shaft 20, corresponding part is provided with groove 207(and is shown in Fig. 3).In practical application, the roller profile of axletree rolling device of the present invention can be designed as required, if roller foreign steamer edge is cylindrical, can carry out roll extrusion to cylindrical axletree, for the axletree to having the groove that circular arc connects carries out effective finish rolling hardening, can on the foreign steamer edge of roller 10, curved flanges 101 be set, and make the cross section arc radius of described curved flanges 101 be less than or equal to the arc radius for the treatment of minimum groove on the roll extrusion axletree, the arc radius that is curved flanges 101 projections is less, its can roll extrusion the axletree position more, the roller that is provided with curved flanges can make this axletree rolling device, not only can carry out roll extrusion to the periphery of axletree, can also be to the shaft shoulder of axletree, escape, the arc-shaped surface at the positions such as grinding undercut is carried out roll extrusion.Preferably curved flanges 101 is arranged on to foreign steamer away from the described roller 10 of described knife bar 40 along upper, and the roller end face near described curved flanges is provided with deep gouge 102, this setup is conducive to make the curved flanges 101 of roller 10 can contact the arc-shaped surface at difficult close place on axletree and it is carried out to roll extrusion.
The structural representation that Fig. 3 is roller shaft in Fig. 1, as shown in Figure 3, roller shaft 20 is multidiameter, it mainly comprises shaft part 202 that roller 10 is installed, the groove 207 that also has the shoulder hole for coordinating roller 10 between axle collar section 203, the first shaft end 201 and the second shaft end 206, the first shaft ends 201 and the shaft part 202 of the shaft part 204 of bearing 30, isolation roller 10 and bearing 30 is installed.Wherein, the surface of the first shaft end 201 of assembling roller 10 1 ends has the external screw thread of assembling nut 60, the axial restraint that is conducive to pair roller at the first shaft end 201 assembling nuts 60, the second shaft end 206 of running in bearings 30 1 ends is provided with the axial trough 205 that back-up ring 80 is installed, back-up ring 80, for bearing 30 is carried out to axial restraint, stops the bearing axially-movable.
The structural representation that Fig. 5 is Fig. 1 middle (center) bearing gland, in conjunction with Fig. 1, Fig. 4 and Fig. 5, for bearing being carried out to effectively fixing and packaging protection, the axletree rolling device can also comprise bearing gland 50, the circular hole 403 of the head of knife bar is shoulder hole, the outer ring of bearing is mounted with in the macropore of described shoulder hole, bearing gland 50 have at the bottom of the lid that covers described shoulder hole macropore 501 and be positioned at the bottom of described lid on annular flange flange 502, in the time of in the macropore of described bearing gland 50 spiral-locks at described shoulder hole, described annular flange flange 502 is in the outer ring of the described bearing 30 of the axial compression of described roller shaft.Bearing gland can have various ways with being connected of knife bar, a kind of optional mode is: at the bottom of the lid of bearing gland 50,501 cover rim is provided with a plurality of bolts hole 503, the edge of the macropore of described shoulder hole is provided with the screwed hole 404 corresponding with described bolt hole 503, and described bearing gland is connected and fixed with described knife bar by the screw 70 be located in described bolt hole; Another kind of optional mode is: annular flange flange 502 outsides of bearing gland 50 have external screw thread, and the inboard of the macropore of described shoulder hole has internal thread, and described bearing gland and described knife bar are threaded connection fixing.Wherein the inboard shape of annular flange flange 502 can be arranged to ladder-shaper structure 504, when bearing gland 50 spiral-locks are on the circular hole 403 of described knife bar 40 heads, can guarantee on the one hand the annular flange flange 502 and the intensity that the lid end 501 is connected of bearing gland, can only to the outer ring of bearing 30, push up pressure on the other hand.
Bearing in the present embodiment is fixed by the shoulder hole of bearing gland and knife rod head, in practical application, also the outer ring of bearing directly can be mounted with in the circular hole of head of knife bar and get final product.
The monnolithic case structural representation that Fig. 6 is axletree rolling device embodiment of the present invention, as shown in Figure 6, the long handle afterbody 402 of knife bar 40 is clamped on lathe, curved flanges 101 on the roller 10 of head 401 assemblings of knife bar 40 contacts with the arc-shaped surface for the treatment of roll extrusion on axletree or periphery, when axletree rotates, the drive roller rotates, thereby realizes being in contact with it surperficial roll extrusion on 101 pairs of axletrees of curved flanges.
The inner ring of the embodiment of the present invention by bearing and outer ring are mounted with respectively at the circular hole of roller shaft and knife bar, realize when knife bar fixedly the time, the axletree for the treatment of roll extrusion just can drive the roller rotation roll extrusion is carried out in the surface of axletree, improve the fatigue resistance on axletree surface, reduce potential safety hazard, thereby improve the service life of axletree; Further on the foreign steamer edge of roller, curved flanges is set and can makes the groove on the pair of rollers axletree carry out finish rolling hardening, thereby realize axletree is carried out to comprehensive finish rolling hardening processing; Further adopt bearing gland and shoulder hole to be fixed and to encapsulate bearing, the work middle (center) bearing of making can access fixing and protection effectively, thereby extends the service life of axletree rolling device.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described but not be limited, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (8)
1. an axletree rolling device, it is characterized in that, comprise: the knife bar of roller, roller shaft, bearing and long handle shape, one end of described roller shaft and the inner ring of described bearing are mounted with, the other end and described roller are mounted with or the other end and described roller are structure as a whole, the head of described knife bar is provided with circular hole, and the outer ring of described bearing is mounted with in described circular hole, and the afterbody of described knife bar is for gripping.
2. device according to claim 1, it is characterized in that, the circular hole of the head of described knife bar is shoulder hole, the outer ring of described bearing is mounted with in the macropore of described shoulder hole, described axletree rolling device also comprises: bearing gland, described bearing gland have at the bottom of the lid that covers described shoulder hole macropore and be positioned at described lid at the bottom of on annular flange flange, in the time of in the macropore of described bearing gland spiral-lock at described shoulder hole, described annular flange flange is in the outer ring of the described bearing of axial compression of described roller shaft.
3. device according to claim 2, it is characterized in that, cover rim at the bottom of the lid of described bearing gland is provided with a plurality of bolts hole, the edge of the macropore of the shoulder hole of the head of described knife bar is provided with the screwed hole corresponding with described bolt hole, and described bearing gland is connected and fixed by being located in screw in described bolt hole and the head of described knife bar.
4. device according to claim 2, it is characterized in that, the annular flange flange outside of described bearing gland has external screw thread, and the inboard of the macropore of the shoulder hole of the head of described knife bar has internal thread, and the head of described bearing gland and described knife bar is threaded connection fixing.
5. according to the described device of any one in claim 1 ~ 4, it is characterized in that having curved flanges on the foreign steamer edge of described roller, the cross section arc radius of described curved flanges is less than or equal to the arc radius for the treatment of minimum groove on the roll extrusion axletree.
6. device according to claim 5, is characterized in that, described curved flanges is arranged on foreign steamer away from the described roller of described knife bar along upper, and is provided with deep gouge near the roller end face of described curved flanges.
7. according to the described device of any one in claim 1 ~ 4, it is characterized in that, when described roller shaft and described roller when being mounted with, described roller shaft is multidiameter, on described roller shaft, the surface of the first shaft end of described roller one end of assembling has the external screw thread of assembling nut, and on described roller shaft, the second shaft end of described bearing one end of assembling is provided with the axial trough that back-up ring is installed.
8. according to the described device of any one in claim 1 ~ 4, it is characterized in that, coordinating between described roller and described roller shaft is interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193554.9A CN103481013B (en) | 2012-06-12 | 2012-06-12 | Axletree rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193554.9A CN103481013B (en) | 2012-06-12 | 2012-06-12 | Axletree rolling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481013A true CN103481013A (en) | 2014-01-01 |
| CN103481013B CN103481013B (en) | 2016-03-23 |
Family
ID=49821792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210193554.9A Active CN103481013B (en) | 2012-06-12 | 2012-06-12 | Axletree rolling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103481013B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171333A (en) * | 2015-09-22 | 2015-12-23 | 江西铜业股份有限公司 | Rolling finishing processing cutter and rolling technology thereof |
| CN105414883A (en) * | 2015-12-31 | 2016-03-23 | 北京工商大学 | Roll finishing device |
| CN105798531A (en) * | 2016-04-15 | 2016-07-27 | 马怡鑫 | Rolling tool of automobile semi-axle |
| CN106346193A (en) * | 2016-11-17 | 2017-01-25 | 中车洛阳机车有限公司 | Arc rolling strengthening device |
| CN107671491A (en) * | 2017-11-08 | 2018-02-09 | 贵州航天精工制造有限公司 | The finish rolling hardening method and lathe finish rolling hardening device of bolt shank annular groove |
| CN107813102A (en) * | 2017-11-21 | 2018-03-20 | 西安航空制动科技有限公司 | The Inspection Aircraft Wheels bearing hole rolling tool and rolling depression method of spring force |
| CN107931951A (en) * | 2017-11-21 | 2018-04-20 | 西安航空制动科技有限公司 | A kind of Inspection Aircraft Wheels bearing hole rolling tool |
| CN108044298A (en) * | 2017-11-21 | 2018-05-18 | 西安航空制动科技有限公司 | The Inspection Aircraft Wheels bearing hole rolling tool and rolling depression method of hydraulic pressurization |
| CN109530736A (en) * | 2019-01-09 | 2019-03-29 | 山东品创机械设备有限公司 | A kind of blade, cutter, cutting process and cutting apparatus |
| CN114309143A (en) * | 2021-12-28 | 2022-04-12 | 宝钢轧辊科技有限责任公司 | Mechanical additive repair process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150961Y (en) * | 1993-01-31 | 1993-12-29 | 冯万增 | Multifunctional rolling press |
| JPH10225825A (en) * | 1997-02-13 | 1998-08-25 | U Mold:Kk | Strength increasing method of aluminium wheel |
| US5826453A (en) * | 1996-12-05 | 1998-10-27 | Lambda Research, Inc. | Burnishing method and apparatus for providing a layer of compressive residual stress in the surface of a workpiece |
| US20050107230A1 (en) * | 2003-08-29 | 2005-05-19 | Ecoroll Ag Werkzeugtechnik | Rolling tool and roller for rolling, particularly deep rolling, a work piece |
| CN200974166Y (en) * | 2006-10-31 | 2007-11-14 | 扬动股份有限公司 | Excircle rigid rolling instrument |
| CN201544007U (en) * | 2009-09-24 | 2010-08-11 | 郑州四维机电设备制造有限公司 | Rolling cutter |
| CN101823192A (en) * | 2010-04-30 | 2010-09-08 | 沈阳第一机床厂 | Barreling tool for processing excircles, R surfaces and end faces |
| CN201889618U (en) * | 2010-11-11 | 2011-07-06 | 强胜精密机械(苏州)有限公司 | Outer circle roll machining device |
-
2012
- 2012-06-12 CN CN201210193554.9A patent/CN103481013B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150961Y (en) * | 1993-01-31 | 1993-12-29 | 冯万增 | Multifunctional rolling press |
| US5826453A (en) * | 1996-12-05 | 1998-10-27 | Lambda Research, Inc. | Burnishing method and apparatus for providing a layer of compressive residual stress in the surface of a workpiece |
| JPH10225825A (en) * | 1997-02-13 | 1998-08-25 | U Mold:Kk | Strength increasing method of aluminium wheel |
| US20050107230A1 (en) * | 2003-08-29 | 2005-05-19 | Ecoroll Ag Werkzeugtechnik | Rolling tool and roller for rolling, particularly deep rolling, a work piece |
| CN200974166Y (en) * | 2006-10-31 | 2007-11-14 | 扬动股份有限公司 | Excircle rigid rolling instrument |
| CN201544007U (en) * | 2009-09-24 | 2010-08-11 | 郑州四维机电设备制造有限公司 | Rolling cutter |
| CN101823192A (en) * | 2010-04-30 | 2010-09-08 | 沈阳第一机床厂 | Barreling tool for processing excircles, R surfaces and end faces |
| CN201889618U (en) * | 2010-11-11 | 2011-07-06 | 强胜精密机械(苏州)有限公司 | Outer circle roll machining device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171333A (en) * | 2015-09-22 | 2015-12-23 | 江西铜业股份有限公司 | Rolling finishing processing cutter and rolling technology thereof |
| CN105414883A (en) * | 2015-12-31 | 2016-03-23 | 北京工商大学 | Roll finishing device |
| CN105798531A (en) * | 2016-04-15 | 2016-07-27 | 马怡鑫 | Rolling tool of automobile semi-axle |
| CN106346193A (en) * | 2016-11-17 | 2017-01-25 | 中车洛阳机车有限公司 | Arc rolling strengthening device |
| CN107671491A (en) * | 2017-11-08 | 2018-02-09 | 贵州航天精工制造有限公司 | The finish rolling hardening method and lathe finish rolling hardening device of bolt shank annular groove |
| CN107931951A (en) * | 2017-11-21 | 2018-04-20 | 西安航空制动科技有限公司 | A kind of Inspection Aircraft Wheels bearing hole rolling tool |
| CN107813102A (en) * | 2017-11-21 | 2018-03-20 | 西安航空制动科技有限公司 | The Inspection Aircraft Wheels bearing hole rolling tool and rolling depression method of spring force |
| CN108044298A (en) * | 2017-11-21 | 2018-05-18 | 西安航空制动科技有限公司 | The Inspection Aircraft Wheels bearing hole rolling tool and rolling depression method of hydraulic pressurization |
| CN107813102B (en) * | 2017-11-21 | 2019-09-03 | 西安航空制动科技有限公司 | The Inspection Aircraft Wheels bearing hole rolling tool and rolling depression method of spring force |
| CN107931951B (en) * | 2017-11-21 | 2019-09-03 | 西安航空制动科技有限公司 | A kind of Inspection Aircraft Wheels bearing hole rolling tool |
| CN108044298B (en) * | 2017-11-21 | 2020-02-07 | 西安航空制动科技有限公司 | Hydraulic-pressurization rolling tool and rolling method for bearing hole of aircraft wheel |
| CN109530736A (en) * | 2019-01-09 | 2019-03-29 | 山东品创机械设备有限公司 | A kind of blade, cutter, cutting process and cutting apparatus |
| CN114309143A (en) * | 2021-12-28 | 2022-04-12 | 宝钢轧辊科技有限责任公司 | Mechanical additive repair process |
| CN114309143B (en) * | 2021-12-28 | 2023-11-24 | 宝钢轧辊科技有限责任公司 | Mechanical material-increasing repairing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103481013B (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103481013B (en) | Axletree rolling device | |
| CN103158025A (en) | Bearing combination support structure for rolling ball lead screw support end | |
| KR20130109059A (en) | Equipment for manufacturing by rolling a complex shape annular element, in particular a steel insert for an outer ring of a rolling bearing | |
| US9533708B2 (en) | Bearing device having at least one kingpin | |
| JP2017044268A (en) | Pivot bearing | |
| CN202106255U (en) | Roll grinder rotary jacking block | |
| CN103657773A (en) | Roller bearing type eccentric sleeve mechanism | |
| CN203248408U (en) | Impeller hub dismounting device | |
| CN101152768A (en) | Drum tile telescoping mechanism of tyre building machine | |
| CN204658176U (en) | A kind of power spindle assembly justifying grinding machine | |
| CN102405126B (en) | Deep rolling roller of a deep rolling machine arranged detachably on a housing | |
| CN204512052U (en) | A kind of double helix oscillating motor | |
| CN209206952U (en) | A kind of heavy type numerical control lathe spindle relief arrangement | |
| CN103122875B (en) | Impeller hub attaching/detaching apparatus | |
| CN201735377U (en) | Axial adjustment device at shaft end | |
| CN204018747U (en) | A kind of thin slice frock reducing clamping deflection | |
| CN104190962B (en) | A kind of plate holder reducing clamping deflection | |
| CN103470640A (en) | Mechanical heavy long shaft supporting device | |
| CN220594530U (en) | Omnidirectional wheel rolling body assembly and omnidirectional wheel | |
| RU2279573C1 (en) | Friction unit with radial-axial bearing | |
| CN107989890A (en) | One kind combines detachable roller | |
| CN217166298U (en) | Internal rotation extrusion type steel ring rim forming part | |
| CN202029649U (en) | Coupling structure for hub axle of car | |
| CN202755289U (en) | Vibration exciter | |
| CN210174532U (en) | A wheel hub assembly for fork truck transaxle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 037038 No.1 Qianjin Street, Pingcheng District, Datong City, Shanxi Province Patentee after: CRRC DATONG Co.,Ltd. Address before: 037038 No. 1, Daqing Road, Shanxi, Datong Patentee before: DATONG ELECTRIC LOCOMOTIVE Co.,Ltd. OF CNR |
|
| CP03 | Change of name, title or address |