CN112208572A - Rail vehicle wheel set damage part cleaning device for flaw detection - Google Patents
Rail vehicle wheel set damage part cleaning device for flaw detection Download PDFInfo
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- CN112208572A CN112208572A CN202010957049.1A CN202010957049A CN112208572A CN 112208572 A CN112208572 A CN 112208572A CN 202010957049 A CN202010957049 A CN 202010957049A CN 112208572 A CN112208572 A CN 112208572A
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- Prior art keywords
- rail vehicle
- cleaning
- wheel
- vehicle wheel
- flaw detection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to a device for cleaning a damaged part of a wheel pair of a railway vehicle for flaw detection, which comprises a bottom plate, an installation mechanism arranged on the right side of the bottom plate in a sliding manner along the left-right direction, a support frame correspondingly distributed on the left side of the installation mechanism, a first cleaning mechanism arranged on the bottom plate in a sliding manner along the front-back direction and used for cleaning the surface of a wheel tread and the surface of a wheel rim of the wheel pair of the railway vehicle, a second cleaning mechanism arranged on the support frame and used for cleaning the surface of the inner wall of the wheel seat of the wheel pair of the railway vehicle, and an actuating mechanism arranged on the support frame, respectively connected with the first cleaning mechanism and the second cleaning mechanism correspondingly and having the functions of clamping. The device is easy to operate and convenient to use, can automatically clean the flaw detection areas of the wheel set of the rail vehicle, and can comprehensively clean the three flaw detection areas on the wheel set of the rail vehicle at the same time.
Description
Technical Field
The invention relates to the technical field of flaw detection of railway vehicle wheel set repair, in particular to a railway vehicle wheel set damage part cleaning device for flaw detection.
Background
With the increasing speed and the increasing load of railway transportation vehicles, higher requirements are put on the quality of the vehicle running parts. The rail vehicle wheel set is one of important parts for ensuring the stable operation of the rail vehicle, the rail vehicle wheel set bears loads in the operation process of the rail vehicle, the loads borne by the rail vehicle wheel set are different under different operation conditions, once the rail vehicle wheel set is damaged and is subjected to expansion development, derailment accidents can be caused in serious conditions. The rail vehicle wheel set damage prevention method is characterized in that the damage of the rail vehicle wheel set is mainly concentrated on the wheel seat inner wall of the rail vehicle wheel, the rail vehicle wheel tread, the rail vehicle wheel rim and the like. At present, generally, a flaw detection means is used for detecting a damaged area and then repairing the damaged area, and the flaw detection means of the conventional rail vehicle wheel set comprises ultrasonic flaw detection, fluorescent magnetic powder flaw detection, magnetic flaw detection and the like. Before any flaw detection means is used, the cleanliness of a flaw detection area needs to be ensured to be high enough to ensure that the coupling effect of a probe and the flaw detection area is good, so that the overall flaw detection quality is improved, and the flaw detection effect is ensured. At present, flaw detection areas on wheel sets of rail vehicles are manually cleaned, so that the labor intensity of workers is high, the operation is complex, the efficiency is low, and the cleaning effect and quality are poor.
Disclosure of Invention
In order to solve the technical problem, the invention provides a device for cleaning a damaged part of a wheel set of a railway vehicle for flaw detection.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a rail vehicle wheel pair damage part cleaning device for flaw detection comprises a bottom plate, an installation mechanism arranged on the right side of the bottom plate in a sliding mode along the left-right direction, a support frame correspondingly distributed on the left side of the installation mechanism, a first cleaning mechanism arranged on the bottom plate in a sliding mode along the front-back direction and used for cleaning a wheel tread and a wheel rim surface of a rail vehicle wheel, a second cleaning mechanism arranged on the support frame and used for cleaning the inner wall surface of a rail vehicle wheel seat, and an actuating mechanism arranged on the support frame, correspondingly connected with the first cleaning mechanism and the second cleaning mechanism respectively and having the functions of clamping and rotating the rail vehicle wheels to be cleaned;
the driving mechanism drives the first cleaning mechanism and the second cleaning mechanism to rapidly slide in a reciprocating manner while driving the rail vehicle wheel to rotate at a relatively slow rotating speed so as to clean the circumferential surfaces of the tread, the wheel rim and the inner wall of the wheel seat of the rail vehicle.
Further, installation mechanism includes along the left and right sides direction smooth dress at the mounting bracket on bottom plate right side, rotates and installs on mounting bracket left side frame wall and through centre gripping rail vehicle wheel seat outer wall realize pressing from both sides tight rail vehicle wheel press from both sides tight friction jack catch, set up on the bottom plate and the pneumatic cylinder of being connected with the mounting bracket, order about the central axis collineation that the mechanism and a tight friction jack catch of clamp.
Further, order about the mechanism including control bull stick and the worm of vertical installation on the support frame side by side, control the hollow cover of level setting on the support frame, coaxial arrangement put on and with worm meshed worm wheel, set up No. two tight friction jack catchs of clamp on the end face of hollow cover outside, with worm coaxial coupling order about the motor, correspond on bull stick and the worm and be equipped with the friction runner that mutual friction is supported and is closed, friction runner and clearance mechanism on the worm are connected, be connected with No. two clearance mechanisms on the bull stick, the central axis collineation of tight friction jack catch and No. two tight friction jack catchs of clamp.
Furthermore, the first cleaning mechanism comprises a sliding base plate, a tread cleaning block, a rim cleaning block and an extension plate, wherein the sliding base plate is arranged on the bottom plate in a sliding mode along the front-back direction, the tread cleaning block and the rim cleaning block are correspondingly distributed on the sliding base plate, the extension plate is correspondingly arranged on the left side wall of the sliding base plate, and a rotating pin which is inserted into the extension plate in a sliding mode is arranged on the end face of a friction rotating wheel on the worm.
Furthermore, No. two clearance mechanisms include that the horizontal and smooth dress of direction is on the support frame and pass rail vehicle wheel seat inner wall clearance piece in the hollow cover, set up the carousel in the bull stick upper end, be equipped with the curb plate on the preceding lateral wall of rail vehicle wheel seat inner wall clearance piece, be equipped with the sliding pin of sliding on the curb plate on the carousel.
The invention has the beneficial effects that:
the rail vehicle wheel pair flaw detection device is easy to operate and convenient to use, flaw detection area cleaning of the rail vehicle wheel pair can be automatically achieved, and through the arrangement of the first cleaning mechanism, the second cleaning mechanism and the driving mechanism with the function of clamping and rotating the rail vehicle wheel to be cleaned, three flaw detection areas on the rail vehicle wheel pair can be comprehensively cleaned at the same time.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic front view in half section of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic sectional view B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of C-C of FIG. 1;
fig. 5 is a schematic cross-sectional view of D-D in fig. 1.
In the figure: 1. a base plate; 1a, a first sliding chute; 1b, a second sliding chute; 2. a support frame; 21. a guide block; 3. a mounting frame; 31. a hydraulic cylinder; 4. a first clamping friction jaw; 5. a rotating rod; 6. a worm; 7. a hollow sleeve; 8. a worm gear; 9. a second clamping friction jaw; 10. driving a motor; 11. a friction rotating wheel; 111. a rotation pin; 12. a turntable; 121. a slide pin; 13. a sliding substrate; 14. a tread cleaning block; 15. a rim cleaning block; 16. an extension plate; 161. an extension plate slot; 17. cleaning blocks for the inner walls of wheel seats of rail vehicles; 171. a guide groove; 18. a side plate; 181. a side plate groove.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1-5, a device for cleaning damaged parts of wheel sets of rail vehicles for flaw detection comprises a bottom plate 1, an installation mechanism which is arranged on the right side of the bottom plate 1 in a sliding manner along the left-right direction, a support frame 2 which is correspondingly distributed on the left side of the installation mechanism, a first cleaning mechanism which is arranged on the bottom plate 1 in a sliding manner along the front-back direction and is used for cleaning the surfaces of the wheel treads and the wheel rims of the rail vehicles, a second cleaning mechanism which is arranged on the support frame 2 and is used for cleaning the surfaces of the inner walls of the wheel seats of the rail vehicles, and an actuating mechanism which is arranged on the support frame 2, is respectively correspondingly connected with the first cleaning mechanism and the second cleaning mechanism and has the functions of clamping and;
the driving mechanism drives the first cleaning mechanism and the second cleaning mechanism to rapidly slide in a reciprocating manner while driving the rail vehicle wheel to rotate at a relatively slow rotating speed so as to clean the circumferential surfaces of the tread, the wheel rim and the inner wall of the wheel seat of the rail vehicle.
As a further improvement of the invention, the mounting mechanism comprises a mounting frame 3 which is arranged on the right side of the bottom plate 1 in a sliding mode along the left-right direction, a first clamping friction claw 4 which is rotatably arranged on the left side frame wall of the mounting frame 3 and clamps the wheels of the railway vehicle by clamping the outer wall of the wheel seat of the wheel of the railway vehicle, and a hydraulic cylinder 31 which is arranged on the bottom plate 1 and connected with the mounting frame 3, wherein the actuating mechanism is collinear with the central axis of the first clamping friction claw 4.
The utility model discloses a rail vehicle wheel clamping device, including bottom plate 1, mounting bracket 3, clamping friction jack catch 4, mounting bracket 3, pneumatic cylinder 31, slide guide, the mechanism cooperation is realized the clamping and tear open the getting to rail vehicle wheel, be equipped with a spout 1a along left right direction on the 1 right side of bottom plate, mounting bracket 3 corresponds the cunning dress in spout 1a, a press from both sides tight friction jack catch 4 and rotates and install on the left side lateral wall of mounting bracket 3, mounting bracket 3 orders about through pneumatic cylinder 31, the slide guide of spout 1a for.
As a further improvement of the invention, the driving mechanism comprises a rotating rod 5 and a worm 6 which are vertically arranged on the support frame 2 side by side from left to right, a hollow sleeve 7 which is horizontally arranged on the support frame 2 from left to right, a worm wheel 8 which is coaxially arranged on the hollow sleeve 7 and is meshed with the worm 6, a second clamping friction clamping jaw 9 arranged on the outer end face of the hollow sleeve 7, and a driving motor 10 which is coaxially connected with the worm 6, wherein friction rotating wheels 11 which are mutually rubbed and abutted are correspondingly arranged on the rotating rod 5 and the worm 6, the friction rotating wheel 11 on the worm 6 is connected with the first cleaning mechanism, the rotating rod 5 is connected with the second cleaning mechanism, and the central axes of the first clamping friction clamping jaw 4 and the second clamping friction clamping jaw 9 are collinear.
The hollow sleeve 7 is fixed on the rear side wall of the support frame 2 through a bearing seat, the worm wheel 8 is arranged on the left end portion of the hollow sleeve 7, the second clamping friction clamping jaw 9 is arranged on the right end portion of the hollow sleeve 7, and the driving motor 10 is fixed at the top of the support frame 2 and connected with the upper end portion of the rotating rod 5. The first clamping friction clamping jaw 4 and the second clamping friction clamping jaw 9 clamp the rail vehicle wheel through the outer side walls of the wheel seats on two sides of the rail vehicle wheel, and the inner side friction clamping surface can enable the rail vehicle wheel to synchronously rotate along with the hollow sleeve 7 on the basis of clamping the rail vehicle wheel.
According to the invention, through the arrangement of the worm 6 and the worm wheel 8, on one hand, the safety and stability of the rail vehicle wheel during rotation are ensured by utilizing the self-locking property of the worm and worm wheel mechanism, and on the other hand, the worm wheel 8 can rotate at a relatively slow speed through the transmission reduction ratio between the worm 6 and the worm wheel 8, so that the rail vehicle wheel rotates slowly at a uniform speed while the first cleaning mechanism and the second cleaning mechanism rapidly reciprocate and clean, and the comprehensive cleaning operation of a flaw detection area on the rail vehicle wheel is realized.
As a further improvement of the invention, the first cleaning mechanism comprises a sliding base plate 13 which is slidably mounted on the bottom plate 1 along the front-back direction, a tread cleaning block 14 and a rim cleaning block 15 which are correspondingly distributed on the sliding base plate 13, and an extension plate 16 which is correspondingly arranged on the left side wall of the sliding base plate 13 and extends along the left, wherein a rotating pin 111 which is slidably inserted in the extension plate 16 is arranged on the end surface of the friction rotating wheel 11 on the worm 6.
The bottom plate 1 is equipped with No. two spouts 1b along the fore-and-aft direction on the left side, slide substrate 13 corresponds the cunning dress in No. two spouts 1b, tread clearance piece 14 distributes on slide substrate 13 left side along the fore-and-aft direction, rim clearance piece 15 distributes on slide substrate 13 right side along the fore-and-aft direction.
The extension plate 16 is provided with extension plate slots 161 distributed in the same direction as the extension plate 16, and the rotation pins 111 are correspondingly inserted into the extension plate slots 161 in a sliding manner. When the friction turning wheel 11 rotates rapidly along with the worm 6, the extension plate 16 and the sliding base plate 13 are shifted to reciprocate in the extension plate slot 161 through the rotating pin 111, so that the tread cleaning block 14 and the rim cleaning block 15 on the sliding base plate 13 clean the rail vehicle wheel tread and the flaw detection area on the rail vehicle wheel rim.
As a further improvement of the invention, the second cleaning mechanism comprises a rail vehicle wheel seat inner wall cleaning block 17 which is horizontally and smoothly arranged on the support frame 2 along the left-right direction and penetrates through the hollow sleeve 7, and a rotary table 12 arranged at the upper end part of the rotary rod 5, wherein a side plate 18 is arranged on the front side wall of the rail vehicle wheel seat inner wall cleaning block 17, and a sliding pin 121 which is slidably inserted on the side plate 18 is arranged on the rotary table 12.
The height of the bottom of the cleaning block 17 on the wheel seat inner wall of the rail vehicle is required to ensure that the bottom cleaning part on the wheel seat inner wall cleaning block 17 of the rail vehicle is contacted with the inner side wall of the wheel seat of the rail vehicle after the rail vehicle wheel is clamped tightly.
The rear side wall of the support frame 2 is horizontally provided with a guide block 21 along the left-right direction, and the rear side wall of the rail vehicle wheel seat inner wall cleaning block 17 is provided with a guide groove 171 which is in sliding fit with the guide block 21 and the guide groove 171, so that the rail vehicle wheel seat inner wall cleaning block 17 is guided when being supported and rapidly reciprocated. The side plate 18 is provided with side plate grooves 181 distributed in the same direction as the side plate, and the sliding pins 121 are correspondingly inserted into the side plate grooves 181 in a sliding manner.
Compared with the prior art, the automatic cleaning device is easy to operate and convenient to use, can automatically clean the flaw detection areas of the rail vehicle wheel pair, and can comprehensively clean the three flaw detection areas on the rail vehicle wheel pair simultaneously through the arranged first cleaning mechanism, the second cleaning mechanism and the driving mechanism with the functions of clamping and rotating the rail vehicle wheel to be cleaned.
The working process is as follows:
during the use, press from both sides tight friction jack catch 9 through the second earlier with one side wheel seat lateral wall of rail vehicle wheel to keep vertical state through appurtenance, then promote mounting bracket 3 through pneumatic cylinder 31, make one press from both sides tight friction jack catch 4 and press from both sides tight another side wheel seat lateral wall of rail vehicle wheel. At the moment, the rail vehicle wheel is clamped and fixed, the tread cleaning block 14 and the wheel rim cleaning block 15 are attached to the tread on the rail vehicle wheel and the bottom of the wheel rim, and the rail vehicle wheel seat inner wall cleaning block 17 is attached to the inner side wall of the rail vehicle wheel seat.
Starting a driving motor 10 to drive a worm 6 to rotate, and simultaneously enabling a tread cleaning block 14 and a rim cleaning block 15 to quickly clean the tread and the rim surface of the rail vehicle wheel along the front-back direction through a friction rotating wheel 11, a rotating pin 111, an extending plate groove 161, a rotating rod 5, a sliding pin 121 and a side plate groove 181, and enabling a rail vehicle wheel seat inner wall cleaning block 17 to quickly clean the inner wall surface of the rail vehicle wheel seat along the left-right direction;
when the tread cleaning block 14, the rim cleaning block 15 and the rail vehicle wheel seat inner wall cleaning block 17 clean a flaw detection area, the worm 6 and the worm wheel 8 are meshed for transmission, and the worm wheel 8 drives the rail vehicle wheel to rotate in one direction at a relatively slow rotating speed through the hollow sleeve 7 and the second clamping friction clamping jaw 9 so as to perform circumferential whole surface cleaning operation on the tread, the rim and the wheel seat inner wall on the rail vehicle wheel.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a rail vehicle wheel set damage position cleaning device that flaw detection used which characterized in that: the device comprises a bottom plate (1), an installation mechanism which is arranged on the right side of the bottom plate (1) in a sliding manner along the left-right direction, a support frame (2) which is correspondingly distributed on the left side of the installation mechanism, a first cleaning mechanism which is arranged on the bottom plate (1) in a sliding manner along the front-back direction and is used for cleaning the surface of a tread and a wheel rim of a rail vehicle wheel, a second cleaning mechanism which is arranged on the support frame (2) and is used for cleaning the surface of the inner wall of the rail vehicle wheel seat, and an actuating mechanism which is arranged on the support frame (2), is respectively connected with the first cleaning mechanism and the second cleaning mechanism correspondingly and has the functions of clamping and rotating the;
the driving mechanism drives the first cleaning mechanism and the second cleaning mechanism to rapidly slide in a reciprocating manner while driving the rail vehicle wheel to rotate at a relatively slow rotating speed so as to clean the circumferential surfaces of the tread, the wheel rim and the inner wall of the wheel seat of the rail vehicle.
2. The apparatus for cleaning the damaged part of the wheel set of the rail vehicle for flaw detection according to claim 1, wherein: installation mechanism includes along left right direction smooth dress at mounting bracket (3) on bottom plate (1) right side, rotates and installs on mounting bracket (3) left side frame wall and through centre gripping rail vehicle wheel seat outer wall realize pressing from both sides tight rail vehicle wheel press from both sides tight friction jack catch (4), set up on bottom plate (1) and pneumatic cylinder (31) of being connected with mounting bracket (3), order about the central axis collineation that the mechanism pressed from both sides tight friction jack catch (4) with one.
3. The apparatus for cleaning the damaged part of the wheel set of the rail vehicle for flaw detection according to claim 2, wherein: order about the mechanism including control bull stick (5) and worm (6) of vertical installation on support frame (2) side by side about, level setting hollow cover (7) on support frame (2), coaxial arrangement on hollow cover (7) and with worm (6) meshed worm wheel (8), set up No. two on hollow cover (7) outside terminal surface press from both sides tight friction jack catch (9), with worm (6) coaxial coupling order about motor (10), correspond friction runner (11) that are equipped with mutual friction butt joint on bull stick (5) and worm (6), friction runner (11) on worm (6) are connected with clearance mechanism No. one, bull stick (5) are connected with clearance mechanism No. two, the central axis collineation of tight friction jack catch (4) of a clamp and No. two tight friction jack catch (9).
4. The apparatus for cleaning a damaged part of a wheel set of a rail vehicle for flaw detection according to claim 3, wherein: the first cleaning mechanism comprises a sliding base plate (13) which is arranged on the bottom plate (1) in a sliding mode along the front-back direction, a tread cleaning block (14) and a wheel rim cleaning block (15) which are correspondingly distributed on the sliding base plate (13), and an extension plate (16) which is correspondingly arranged on the left side wall of the sliding base plate (13), wherein a rotating pin (111) which is inserted into the extension plate (16) in a sliding mode is arranged on the end face of a friction rotating wheel (11) on the worm (6).
5. The apparatus for cleaning a damaged part of a wheel set of a rail vehicle for flaw detection according to claim 3, wherein: no. two clearance mechanisms include along the horizontal and smooth dress of left right direction on support frame (2) and pass rail vehicle wheel seat inner wall clearance piece (17) in hollow cover (7), set up carousel (12) at bull stick (5) upper end, be equipped with curb plate (18) on the preceding lateral wall of rail vehicle wheel seat inner wall clearance piece (17), be equipped with sliding pin (121) of sliding on curb plate (18) on carousel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957049.1A CN112208572B (en) | 2020-09-12 | 2020-09-12 | Rail vehicle wheel set damage part cleaning device for flaw detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957049.1A CN112208572B (en) | 2020-09-12 | 2020-09-12 | Rail vehicle wheel set damage part cleaning device for flaw detection |
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| Publication Number | Publication Date |
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| CN112208572A true CN112208572A (en) | 2021-01-12 |
| CN112208572B CN112208572B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010957049.1A Active CN112208572B (en) | 2020-09-12 | 2020-09-12 | Rail vehicle wheel set damage part cleaning device for flaw detection |
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| CN107414650A (en) * | 2017-07-14 | 2017-12-01 | 芜湖鼎瀚再制造技术有限公司 | A kind of automatic grinding derusting prosthetic device remanufactured for Corrugator roller |
| CN108202713A (en) * | 2017-12-08 | 2018-06-26 | 广州唐太环保科技有限公司 | A kind of improved new-energy automobile cleaning device |
| CN108942017A (en) * | 2018-08-10 | 2018-12-07 | 安徽鼎恒再制造产业技术研究院有限公司 | A kind of double-station train wheel build-up welding apparatus |
| CN109954828A (en) * | 2019-04-22 | 2019-07-02 | 中信戴卡股份有限公司 | A kind of wheel forging mold automatic cleaning apparatus |
| CN209274562U (en) * | 2018-10-23 | 2019-08-20 | 青岛优沐汽车环保科技服务有限公司 | A kind of wiping arrangement for during automobile washing |
| CN111319585A (en) * | 2020-04-07 | 2020-06-23 | 天津益智汽车用品有限公司 | Automatic automobile tire cleaning equipment |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2243397A1 (en) * | 1998-08-05 | 2000-02-05 | Imac Inc. | Automatic brush for steel wheels |
| JP2000051801A (en) * | 1998-08-11 | 2000-02-22 | Hitachi Ltd | Automatic cleaning apparatus |
| JP2001198789A (en) * | 2000-01-21 | 2001-07-24 | Sumitomo Heavy Ind Ltd | Device for cleaning and polishing roll surface |
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| CN112208572B (en) | 2022-10-04 |
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