CN102699666A - Bearing dismounting device - Google Patents
Bearing dismounting device Download PDFInfo
- Publication number
- CN102699666A CN102699666A CN2012101652501A CN201210165250A CN102699666A CN 102699666 A CN102699666 A CN 102699666A CN 2012101652501 A CN2012101652501 A CN 2012101652501A CN 201210165250 A CN201210165250 A CN 201210165250A CN 102699666 A CN102699666 A CN 102699666A
- Authority
- CN
- China
- Prior art keywords
- bearing
- crossbeam
- plate
- base
- location
- 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.)
- Pending
Links
Images
Landscapes
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a bearing dismounting device for dismounting a bearing of a main reducer or a differential bearing, which comprises a base, a bearing positioning plate, a beam supporting plate, a beam and a pushing mechanism. The base is provided with an axial through hole of a shaft installed on the bearing. The bearing positioning plate is supported by the base and connected with the base detachably. The bearing positioning plate is used for supporting an inner ring step of the bearing. The beam supporting plate is connected with the bearing positioning plate or the base. The beam is supported by the beam supporting plate. The pushing mechanism is located between the beam and the shaft and is provided with a top end limited by the beam and a bottom end pressed by and contacted with the shaft, wherein the top end and/or the bottom end of the pushing mechanism are expandable free ends. The bearing dismounting device provided by the invention can dismount large bearings such as bearings of the reducer and the differential bearing.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of bearing disassembling device.
Background technology
The method for dismounting of bearing is mainly Mechanical Method and heating.Mechanical Method is to utilize external force that bearing and axle are separated, and the provision for disengagement that this method adopts is generally drawbench or draws horse, is mainly used in the drawing bearing inner race.Heating is that the mode through heating makes the bearing expanded by heating, and bearing inner race and axle produce the space and separate, and the provision for disengagement that this method adopts is mainly induction heater, is mainly used in heating and the housing that bearing matches, and takes off bearing after making housing expand.
The mine truck loading capacity is big; The used bearing of its main reducing gear and differential mechanism is also relatively large; The big bearing of driving gear shaft is generally single-row tapered roller bearing, and this bearing generally adopts hot charge practice to assemble, after assembling is accomplished; Form tight fit between bearing inner race and the axle, so main reducing gear and differential mechanism can't adopt the method for dismounting of induction heating type with bearing.Because above-mentioned bearing profile is bigger, draw the pulling claw of horse not have the step that is difficult to cross retainer and catches bearing inner race, adopt therefore that existing bearing disassembling device is difficult to be realized the dismounting with bearing of main reducing gear and differential mechanism.
Summary of the invention
In view of this, the present invention proposes a kind of bearing disassembling device, to solve the problem that existing bearing disassembling device is difficult to dismantle main reducing gear bearing and differential bearing.
The invention provides a kind of bearing disassembling device, be used to dismantle main reducing gear bearing or differential bearing, comprising: base, bearing location-plate, crossbeam gripper shoe, crossbeam and pushing mechanism; Said base is provided with and can wears the shaft through-hole that is installed on the axle on the said bearing; Said bearing location-plate removably connects by said base support and with said base, and said bearing location-plate is used to support the inner ring step of said bearing; Said crossbeam gripper shoe links to each other with said bearing location-plate or said base; Said crossbeam is supported by said crossbeam gripper shoe; Said pushing mechanism is between said crossbeam and said axle, and said pushing mechanism is provided with: by the spacing top of said crossbeam, and compress the bottom that contacts with said axle, said top and/or bottom are extensile free end.
Further, said bearing location-plate is provided with and the suitable arc notch of said inner ring step.
Further, said bearing location-plate and said base removably connect through bolt.
Further, said bearing location-plate is provided with the U type groove that is used to install said bolt, and the groove depth of said U type groove is greater than the diameter of bolt double-screw bolt.
Further, the number of said bearing location-plate is 2, and arranges along the circumferentially even of inner ring step of said bearing.
Further, said crossbeam gripper shoe and said bearing location-plate welding.
Further, said crossbeam gripper shoe is provided with the crossbeam through hole that is used to wear said crossbeam.
Further, said pushing mechanism is a jack.
Further, said base comprises: bearing frame and the supporting leg that supports said bearing frame, said bearing location-plate and said bearing frame removably connect.
Further, the number of said supporting leg is 3.
Bearing disassembling device provided by the invention comprises base, bearing location-plate, crossbeam gripper shoe, crossbeam and pushing mechanism.When needs are dismantled bearing, at first adjust the position of bearings and make the position of bearings belong to face a little more than base plate through holes; Then the bearing location-plate is placed on the base, and adjust the position of bearing location-plate and bearing, make the inner ring step of bearing location-plate spring bearing, bearing location-plate and base are fixed; Then fixed cross beam gripper shoe and crossbeam successively; At last pushing mechanism is placed the top of axle, during pushing mechanism work, pushing mechanism is because the position-limiting action of crossbeam moves downward, and impeller-hub separates with bearing.With respect to the existing bearing provision for disengagement, bearing disassembling device provided by the invention can realize decelerator is used with bearing and differential mechanism the dismounting of this type of axle large size bearing.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
The structural representation of the bearing disassembling device that Fig. 1 provides for the embodiment of the invention 1;
Fig. 2 is the schematic top plan view of base in the embodiment of the invention 1;
Fig. 3 is the position view of the embodiment of the invention 1 middle (center) bearing location-plate and bearing;
Fig. 4 is the structural representation of the preferred version middle (center) bearing location-plate of the embodiment of the invention 1;
Fig. 5 is the structural representation of another preferred version middle (center) bearing location-plate in the embodiment of the invention 1;
Fig. 6 is the structural representation of the embodiment of the invention 1 middle cross beam gripper shoe;
The structural representation of the bearing disassembling device that Fig. 7 provides for the embodiment of the invention 2.
Description of reference numerals:
1 base, 11 bearing frames
12 supporting legs, 111 shaft through-holes
2 bearing location-plates, 21 arc notch
22 U type grooves, 3 crossbeam gripper shoes
31 crossbeam through holes, 4 crossbeams
5 jack, 6 bearings
61 inner ring steps
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
The embodiment of the invention 1 provides a kind of bearing disassembling device, and it is used to dismantle main reducing gear bearing or differential bearing.See also Fig. 1 to Fig. 6, this bearing disassembling device comprises: base 1, bearing location-plate 2, crossbeam gripper shoe 3, crossbeam 4 and jack 5; Wherein,
Base 1 specifically comprises bearing frame 11 and the supporting leg 12 that supports bearing frame 11, and bearing frame 11 is provided with and can passes the shaft through-hole 111 that is installed on the axle in the bearing 6;
Bearing location-plate 2 is supported by base 1, and removably connects through the bearing frame 11 of bolt and base 1, and this bearing location-plate 2 is used for the inner ring step 61 of spring bearing 6;
Crossbeam gripper shoe 3 links to each other with bearing top location-plate 2;
Crossbeam 4 is supported by crossbeam gripper shoe 3.
Jack 5 (pushing mechanism), it is between crossbeam 3 and axle, and the top of jack 5 (extension free end) is spacing by crossbeam 4, and the bottom of jack 5 compresses with axle and contacts, and is used for promoting to move vertically.
It will be understood by those skilled in the art that bearing disassembling device according to the invention is to be used for a bearing and a device that is separated that is installed on the bearing.The process of using above-mentioned bearing disassembling device that main reducing gear bearing or differential bearing are dismantled is following:
1, utilize lifting appliance that bearing is from top to bottom passed the shaft through-hole 111 of base 1, to the inner ring step 61 of bearing 6 a little more than bearing frame 11, this moment, bearing 6 was in vacant state;
2, on the bearing frame 11 of base 1, place bearing location-plate 2, the position of adjustment bearing location-plate 2 and bearing 6 makes bearing location-plate 2 lean the bottom surface of the inner ring step 61 of bearing 6, and bearing location-plate 2 and bearing frame 11 are passed through bolt;
3, crossbeam gripper shoe 3 vertically is fixed in bearing location-plate 2;
4, along continuous straight runs is installed crossbeam 4 on crossbeam gripper shoe 3;
5, with on the axle of jack 5 as for bearing 6; Upwards stretch the top of jack 5; Stretch when the top of jack 5 and to be positioned over when contacting with crossbeam 4, the thrust that 5 pairs of crossbeams 4 of jack apply passes to base 1 through crossbeam gripper shoe 3, bearing location-plate 2 successively, and base 1 receives downward thrust; Ground gives base 1 to make base 1 stress balance with said thrust opposite reaction simultaneously, and base 1 position does not change.Then, the bottom of jack 5 becomes free end, and extrusion axis moves downward.
The effect of above-mentioned base 1 is: support the also position of rigid bearing location-plate 2, crossbeam gripper shoe 3 and crossbeam 4; Formation can be held axle and move to the space that is separated with bearing 6.The effect of shaft through-hole 111 is to wear the axle that is positioned at below the bearing, hereinafter to be referred as shaft head.For the situation of shaft head diameter greater than bearing diameter, like gear shaft, the setting of shaft through-hole 111 makes base 1 when having supporting role, not influence the positioning action of the inner ring step 61 of 2 pairs of bearings 6 of bearing location-plate.In order to improve the stationarity of base 1, the number of the supporting leg 12 of above-mentioned base 1 is preferably 3.Need to prove that base also can adopt other structure, as support desk-top or the support cartridge type.
Bearing location-plate 2 is mainly used in the inner ring step 61 that blocks bearing 6, thus the position of bearing 6 is fixed, and axle moves and bearing 6 is motionless when realizing jack 5 work thus, and then axle and bearing 6 are separated.
Further, preferably adopt bearing location-plate 2 as shown in Figure 4, it is provided with the arc notch 21 suitable with the inner ring step of bearing 6 61.Setting up this arc notch 21 can increase the contact area of bearing location-plate 2 and inner ring step 61 on the one hand, improves the stability of bearing 6 positions, reduces the suffered pressure of bearing location-plate 2; On the other hand, can make this bearing location-plate 2 can be adaptive through the position of adjustment bearing location 2 on base 1 with the equal ability of different size bearing.
Further, also can adopt bearing location-plate 2 as shown in Figure 5, with respect to bearing location-plate 2 shown in Figure 4, also be provided with U type groove on the bearing location-plate 2 that this preferred version provides, the groove depth (a) of this U type groove is greater than the double-screw bolt diameter of bolt.When with this bearing location-plate 2 with bearing frame 11 fixedly the time, bolt is connected with bearing frame 11 bolts through above-mentioned U type groove.The effect of setting up this U type groove is: after bearing location-plate 2 is fixed through bolt and bearing frame 11, owing to leave the gap between bolt and the U type groove, so the position of this bearing location-plate 2 also can be adjusted according to the position of inner ring step 61.
The number of above-mentioned bearing disassembling device middle (center) bearing location-plate 2 can be one or more; Though increasing of bearing location-plate 2 numbers helps improving its fixed effect to bearing 6; But number too much can increase the built-up time of bearing disassembling device, and then has also prolonged the bearing removal time.In view of above-mentioned bearing location-plate 2 (shown in Figure 5) has good fixing effect, advantage that pressurized is little, the number of bearing location-plate 2 is preferably two, and circumferentially evenly arranging along the inner ring step 61 of bearing 6.
Crossbeam gripper shoe 3 is used for supporting traverse 4, and crossbeam 4 is used to limit the direction of motion of jack 5, and when the roof pressure crossbeam 4 of the top of jack 5, jack 5 moves downward extrusion axis.For the ease of crossbeam 4 is installed on crossbeam gripper shoe 3, crossbeam gripper shoe 3 preferably is provided with the crossbeam through hole 31 that is used to wear crossbeam 4.In the process of dismounting bearing, after the fixed-site of crossbeam gripper shoe 3, only need wear crossbeam 4 this crossbeam through hole 31 and be set up on the crossbeam gripper shoe 3 and get final product.In order to prolong the service life of crossbeam gripper shoe 3 and crossbeam 4, crossbeam gripper shoe 3 preferably vertically (Y direction among Fig. 1) is arranged; Crossbeam 4 and along continuous straight runs (Y direction among Fig. 1) are arranged.
In order to simplify the installation steps of bearing disassembling device, crossbeam gripper shoe 3 preferred with 2 welding of bearing location-plate, promptly crossbeam gripper shoe 3 and bearing location-plate 2 are integrally formed structure.In the bearing removal process, can omit and crossbeam gripper shoe 3 vertically is fixed in the step of bearing location-plate 2 (step 3) in the above-mentioned bearing removal process has been simplified the operation of bearing removal.
It will be understood by those skilled in the art that the number of crossbeam gripper shoe 3 is at least 2 in order to guarantee that 4 pairs of jack 5 of crossbeam can play position-limiting action.The number of present embodiment middle cross beam gripper shoe 2 is 2.In order to reduce the stressed of each crossbeam gripper shoe 3; The number of crossbeam gripper shoe 3 also can be for a plurality of; Those skilled in the art can adjust the shape of crossbeam 4 according to the number of crossbeam gripper shoe 3; Concrete as: when the number of crossbeam gripper shoe 3 is 4, and when inner ring step 61 circumferentially evenly is provided with, adopt cross crossbeam.
Need to prove that jack 5 is used for impeller-hub and moves downward vertically as a kind of pushing mechanism, the placement direction of jack also can be inverted, and promptly its top compresses axle, and the bottom is spacing by crossbeam 4.Jack 5 specifically can adopt mechanic jacks or hydraulic jack.Pushing mechanism can also adopt screw rod or other hydraulic jack.
The structural representation of the bearing disassembling device that Fig. 7 provides for the embodiment of the invention 2, its difference with embodiment 1 is: crossbeam gripper shoe 3 links to each other with bearing frame 11.
The process of using above-mentioned bearing disassembling device that main reducing gear bearing or differential bearing are dismantled is following:
1, utilize lifting appliance that bearing is from top to bottom passed the shaft through-hole of base, to the inner ring step of bearing a little more than bearing frame, this moment, bearing was in vacant state;
2, on the bearing frame of base, place the bearing location-plate, the position of adjustment bearing location-plate and bearing makes the split bearing location-plate lean the bottom of bearing inner race step, and bearing top location-plate and bearing frame are passed through bolt;
3, crossbeam gripper shoe 3 vertically is fixed in bearing frame;
4, along continuous straight runs is installed crossbeam on the crossbeam gripper shoe;
5, jack is positioned on the axle of bearing; Upwards stretch the top of jack; Stretch when contacting with crossbeam when the top of jack, the thrust that the jack pair crossbeam applies passes to base through crossbeam gripper shoe 3, and base receives downward thrust; Ground gives base to make the base stress balance with said thrust opposite reaction simultaneously, and position base does not change.Then, the bottom of jack becomes free end, and extrusion axis moves downward.
, do not give unnecessary details now with all embodiment 1 is identical for the alternative of the preferred version of base, bearing location-plate, crossbeam gripper shoe and jack at this.
The bearing disassembling device that present embodiment provides is provided with base, bearing location-plate, crossbeam gripper shoe, crossbeam and pushing mechanism.When needs are dismantled bearing, at first adjust the position of bearings and make the position of bearings belong to face a little more than through hole; Then the bearing location-plate is being placed on the base, and the position of adjustment bearing location-plate and bearing makes the inner ring step of bearing location-plate spring bearing, bearing location-plate and base are fixed; Then fixed cross beam gripper shoe and crossbeam successively; At last pushing mechanism is placed the top of axle, during pushing mechanism work, pushing mechanism is because the position-limiting action of crossbeam moves downward, and impeller-hub separates with bearing.With respect to the existing bearing provision for disengagement, the bearing disassembling device that the foregoing description provides can realize large size bearing, like decelerator with the dismounting of bearing and differential mechanism with bearing.
Above-mentioned bearing disassembling device provided by the invention is specially adapted to the dismounting to the single-row tapered roller bearing that gear shaft is installed.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a bearing disassembling device is used to dismantle main reducing gear bearing or differential bearing, it is characterized in that, comprising: base (1), bearing location-plate (2), crossbeam gripper shoe (3), crossbeam (4) and pushing mechanism;
Said base (1) is provided with and can wears the shaft through-hole (111) that is installed on the axle on the said bearing (6);
Said bearing location-plate (2) is supported by said base (1) and removably connects with said base (1), and said bearing location-plate (2) is used to support the inner ring step (61) of said bearing (6);
Said crossbeam gripper shoe (3) links to each other with said bearing location-plate (2) or said base (1);
Said crossbeam (4) is supported by said crossbeam gripper shoe (3);
Said pushing mechanism is positioned between said crossbeam (4) and the said axle, and said pushing mechanism is provided with: by the spacing top of said crossbeam (4), and compress the bottom that contacts with said axle, said top and/or bottom are extensile free end.
2. bearing disassembling device according to claim 1 is characterized in that, said bearing location-plate (2) is provided with the arc notch (21) suitable with said inner ring step (61).
3. bearing disassembling device according to claim 2 is characterized in that, said bearing location-plate (2) removably connects through bolt with said base (1).
4. bearing disassembling device according to claim 3 is characterized in that, said bearing location-plate (2) is provided with the U type groove (22) that is used to install said bolt, and the groove depth of said U type groove (22) is greater than the diameter of said bolt double-screw bolt.
5. bearing disassembling device according to claim 3 is characterized in that, the number of said bearing location-plate (2) is 2, and arranges along the circumferentially even of inner ring step (61) of said bearing (6).
6. bearing disassembling device according to claim 1 is characterized in that, said crossbeam gripper shoe (3) and said bearing location-plate (2) welding.
7. bearing disassembling device according to claim 1 is characterized in that, said crossbeam gripper shoe (3) is provided with the crossbeam through hole (31) that is used to wear said crossbeam (4).
8. bearing disassembling device according to claim 1 is characterized in that, said pushing mechanism is jack (5).
9. bearing disassembling device according to claim 1 is characterized in that, said base comprises: the supporting leg (12) of bearing frame (11) and the said bearing frame of support, said bearing location-plate (2) removably connects with said bearing frame (11).
10. bearing disassembling device according to claim 9 is characterized in that, the number of said supporting leg (12) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101652501A CN102699666A (en) | 2012-05-25 | 2012-05-25 | Bearing dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101652501A CN102699666A (en) | 2012-05-25 | 2012-05-25 | Bearing dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102699666A true CN102699666A (en) | 2012-10-03 |
Family
ID=46892875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101652501A Pending CN102699666A (en) | 2012-05-25 | 2012-05-25 | Bearing dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102699666A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975001A (en) * | 2012-10-31 | 2013-03-20 | 萧县佳诚造纸机械有限责任公司 | Bearing machining device |
| CN107825066A (en) * | 2017-12-15 | 2018-03-23 | 博维恩冷冻科技（苏州）有限公司 | A kind of bearing removal electromagnetism stripping attachment |
| CN109483191A (en) * | 2018-11-14 | 2019-03-19 | 徐州市奥仕捷电子机箱有限公司 | A kind of vacuum plant of casing |
| CN112621157A (en) * | 2020-12-22 | 2021-04-09 | 中冶宝钢技术服务有限公司 | Automatic dismounting device for wringing roller bearing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339823A (en) * | 1993-06-02 | 1994-12-13 | Nitto Seiko Co Ltd | Insertion device for plate-shaped supporting leg |
| CN201020611Y (en) * | 2007-04-16 | 2008-02-13 | 宝山钢铁股份有限公司 | Large-scale bearing dismounting device |
| CN101157176A (en) * | 2007-11-15 | 2008-04-09 | 施共华 | Automobile semi-axis bearing retainer ring replacer |
| CN201214183Y (en) * | 2008-07-15 | 2009-04-01 | 成都市西菱汽车配件有限责任公司 | Rubber ring indentation fixture of bent shaft vibration reduction belt pulley |
| CN201235522Y (en) * | 2008-08-01 | 2009-05-13 | 吉林庆达光盘科技有限责任公司 | Bearing relieving attachment |
| CN201960530U (en) * | 2011-03-24 | 2011-09-07 | 扬州三星塑胶有限公司 | Bearing disassembling frame |
| CN202185889U (en) * | 2011-07-18 | 2012-04-11 | 海城市石油机械制造有限公司 | Simple bearing disassembling tool |
| CN202219387U (en) * | 2011-07-21 | 2012-05-16 | 吉林建龙钢铁有限责任公司 | Portable dismounting table |
-
2012
- 2012-05-25 CN CN2012101652501A patent/CN102699666A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339823A (en) * | 1993-06-02 | 1994-12-13 | Nitto Seiko Co Ltd | Insertion device for plate-shaped supporting leg |
| CN201020611Y (en) * | 2007-04-16 | 2008-02-13 | 宝山钢铁股份有限公司 | Large-scale bearing dismounting device |
| CN101157176A (en) * | 2007-11-15 | 2008-04-09 | 施共华 | Automobile semi-axis bearing retainer ring replacer |
| CN201214183Y (en) * | 2008-07-15 | 2009-04-01 | 成都市西菱汽车配件有限责任公司 | Rubber ring indentation fixture of bent shaft vibration reduction belt pulley |
| CN201235522Y (en) * | 2008-08-01 | 2009-05-13 | 吉林庆达光盘科技有限责任公司 | Bearing relieving attachment |
| CN201960530U (en) * | 2011-03-24 | 2011-09-07 | 扬州三星塑胶有限公司 | Bearing disassembling frame |
| CN202185889U (en) * | 2011-07-18 | 2012-04-11 | 海城市石油机械制造有限公司 | Simple bearing disassembling tool |
| CN202219387U (en) * | 2011-07-21 | 2012-05-16 | 吉林建龙钢铁有限责任公司 | Portable dismounting table |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975001A (en) * | 2012-10-31 | 2013-03-20 | 萧县佳诚造纸机械有限责任公司 | Bearing machining device |
| CN107825066A (en) * | 2017-12-15 | 2018-03-23 | 博维恩冷冻科技（苏州）有限公司 | A kind of bearing removal electromagnetism stripping attachment |
| CN109483191A (en) * | 2018-11-14 | 2019-03-19 | 徐州市奥仕捷电子机箱有限公司 | A kind of vacuum plant of casing |
| CN112621157A (en) * | 2020-12-22 | 2021-04-09 | 中冶宝钢技术服务有限公司 | Automatic dismounting device for wringing roller bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102699666A (en) | Bearing dismounting device | |
| CN101568404A (en) | Machining tool and machining method of cylinder block | |
| CN101733285B (en) | Temper mill with roll bending and shifting functions | |
| CN102776342A (en) | Hydraulic expansion assembled combination die for quenching ferrules | |
| CN101352732B (en) | Upper back-up roll extractor of cluster roll | |
| CN221063988U (en) | But eccentric radial adjustment's backing roll bearing unit | |
| CN203091640U (en) | Forging machine assembled with flat plate type guide devices | |
| CN102359504A (en) | Ball sorting device for automatic bearing production line | |
| CN217002748U (en) | Large-scale bearing press-fitting machine | |
| CN203140432U (en) | Three-roller mandrel supporting device | |
| CN103537484B (en) | A kind of method changing pinch roll lower roller | |
| CN202348994U (en) | Ball distribution device of automatic bearing production line | |
| CN203266041U (en) | Device for mounting or dismounting slide shoe bearing bushes | |
| CN202447385U (en) | Axial locating mechanism of flange ring horizontal mill | |
| CN203185268U (en) | Gear shaft bearing inner ring dismounting tool | |
| CN201266012Y (en) | Hydraulic catch wheel apparatus | |
| CN201702303U (en) | Annular piece axial positioning device for a ring rolling device with a horizontally arranged roller | |
| CN210023257U (en) | Clearance eliminating device for four-high mill | |
| CN205527247U (en) | Elasticity buffering cushion wheel cage shoe | |
| CN111790874A (en) | Mold frame internal ejection structure | |
| CN101352731B (en) | Lower back-up roll exchanging device of cluster roll | |
| CN101519025B (en) | Device and method for disassembling tyre and pressure taker for device for disassembling tyre | |
| CN101758079A (en) | Upper supporting roll hydraulic balance device of cold-rolling mill | |
| CN219292518U (en) | Turnover cold stamping die for machining automobile parts | |
| CN210232850U (en) | Device convenient to remove oil roller on reversible rolling mill of six rollers is changed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121003 |