CN207961306U - A kind of large size bearing maintenance unit - Google Patents
A kind of large size bearing maintenance unit Download PDFInfo
- Publication number
- CN207961306U CN207961306U CN201820363498.1U CN201820363498U CN207961306U CN 207961306 U CN207961306 U CN 207961306U CN 201820363498 U CN201820363498 U CN 201820363498U CN 207961306 U CN207961306 U CN 207961306U
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- China
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- bearing
- pull rod
- supporting frame
- cross supporting
- maintenance unit
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Abstract
The utility model is related to bearing maintenance units, and in particular to a kind of large size bearing maintenance unit；Including cross supporting frame, the left and right ends and bottom of the cross supporting frame are welded with pull rod, the top of cross supporting frame is connect by fastening bolt with dismountable pull rod, four pull rods be mutually parallel and with supporting rack where plane it is vertical, one end of the pull rod and the end of cross supporting frame connect, and the other end is bent to form drag hook to the center of cross supporting frame；Four claw pull rods are utilized in bearing end（That is the drag hook of pull rod）, directly make shaft end baffle ring stress, by heating bearing outer ring bearing holder (housing, cover), will be big and weigh, the bearing of hot charging forming is successfully dismantled, and does not damage bearing arrangement and the parts of connection, and meet practical operation space to require, so that bearing is convenient to mount and dismount, be time saving, is laborsaving；Utility model device makes full use of available man-power, material resources to be made, and saves cost input, and method is simple, feasible.
Description
Technical field
The utility model is related to bearing maintenance units, and in particular to a kind of large size bearing maintenance unit.
Background technology
Large-size chemical machine industry, production task weight, shell rolling diameter is big, and it is thicker to roll plank, to veneer reeling machine
Capability Requirement is high, and easily causes veneer reeling machine abrasion, damage.My 260 veneer reeling machine of company, maximum cold coiling roll thickness 250mm,
Roll bending width 3800mm, full load minimum drum diameter 3500mm, the veneer reeling machine are used for always my company's staple product gasification furnace
Cylinder rolls.For a long time due to veneer reeling machine, full load running causes upper roller of press brake bearing ball to be damaged, extremely influences
Company's manufacturing schedule.
General bearing repair, be by engaging specialized maintenance personnel that could smoothly tear bearing open using specialized maintenance tool
Dress.Large size bearing is repaired, dedicated three-pawl type dismantling device should be used, power, ability are provided by large hydraulic station system
By the bearing removal of hot charging.The hydraulic station bodily form is huge, complicated, and use cost is high, and cannot achieve remote carrying, gives axis
It holds repair and brings many difficulties.Roll bending machine bearing is in use, since working speed is relatively low, and bearing ball is larger, more, meets
Roll bending ability, in the case of maintenance is proper, bearing will not generally damage.Specialized maintenance device is such as bought, cost is too high, and obtains and do not repay
It loses.
Under the premise of lacking the tool of specialized maintenance bearing, if the bearing diameter of damage is big, bearing bore diameter φ 950mm,
Bearing outside diameter φ 1360mm, weight, in addition assembly is hot charging between bearing inner race and central shaft, can cause bearing to tear open up to 1.5 tons
It unloads extremely difficult.
Invention content
The utility model is to solve the large size bearing of damage bearing removal and to replace difficult technical problem in repair, is carried
For a kind of simple, convenient efficiently large size bearing maintenance unit.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of large size bearing maintenance unit,
Including cross supporting frame and four pull rods, the left and right ends and bottom of the cross supporting frame are welded with pull rod, cross hang
The top of frame is connect by fastening bolt with dismountable pull rod, and four pull rods are mutually parallel and hang down with plane where supporting rack
Directly, one end of the pull rod and the end of cross supporting frame connect, and the other end is bent to form drawing to the center line of cross supporting frame
Hook；Several lifting lugs are also welded on the pull rod.
Maintenance unit in specific works, do not install first by the pull rod of cross hang top of the trellis, first covers maintenance unit and is packed into
After bearing, tie rod end drag hook should go deep into end play, withstand bearing end baffle ring（By remaining obstruction end that such as bearing is extracted
Lid, bolt have been removed）, then by small crane, lift into jack, guarantee is concentric with bearing centre axis, and finally assembling is surplus
Remaining a pull rod, fastening bolt is used in combination to position.After maintenance unit installation positioning, using the existing tracklayer heater of company, it is rolled in
It repairs outside bearing holder (housing, cover), bearing outer ring is heated, continuous heating rotates jack operating lever, utilize jack after 6 hours
Support force will damage bearing removal.Fastening bolt is loosened, top pull bar is removed, you can is easily taken out damage bearing, this repair dress
Setting can also reuse when more renewing bearing.
The utility model has the advantages that compared with prior art：
Utility model device makes full use of using rim charge, waste-material-preparing, saves cost input, and method is simple, feasible.
Four claw pull rods are utilized in bearing end（That is the drag hook of pull rod）, directly make shaft end baffle ring stress, by heating bearing outer ring
Bearing holder (housing, cover) is weighed big, the bearing of hot charging forming is successfully dismantled, and do not damage bearing arrangement and the parts of connection.It should
Device meets practical operation space requirement, so that bearing is convenient to mount and dismount, is time saving, is laborsaving, it is contemplated that stress is larger when bearing dismantling, knot
Close crane, jack uses, and makes full use of available man-power, material resources, realize bearing smoothly, fast assembling-disassembling.
Description of the drawings
Fig. 1 is the structural schematic diagram of large size bearing maintenance unit.
Fig. 2 is the structural schematic diagram of cross supporting frame.
It is marked in figure as follows：
1- pull rods, 2- cross supporting frames, 3- bearing ribs, 4- lifting lugs, 5- fastening bolts, 6- jack, 7- bearings.
Specific implementation mode
Below in conjunction with specific embodiment, the utility model is described in further detail.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of large size bearing maintenance unit, including cross supporting frame 2, a left side for the cross supporting frame 2
Right both ends and bottom are welded with pull rod 1, and the top of cross supporting frame 2 is removably connected with pull rod 1 by fastening bolt 5,
Four pull rods 1 are mutually parallel and, one end of the pull rod 1 and the end company of cross supporting frame 2 vertical with 2 place plane of supporting rack
It connects, the other end is bent to form drag hook to the center line of cross supporting frame 2；Several lifting lugs 4 are also welded on the pull rod 1.
500 kilograms of maintenance unit design weight, it is necessary to be lifted by crane, since operating space is limited, be hung in Fig. 1
Ear 4 need to reposition, welding equipment lifts by crane lifting lug 4 in maintenance unit bearing set 7.
The drag hook of the pull rod 1 is vertical with pull rod 1.
Cross supporting frame 2 designs, and the rectangular section of economical rationality is chosen according to Force Calculation using inventory's heavy-gauge sheeting, makees
For the main stress face of jack, meet the intensity requirement of maintenance unit.
It is connected by several bearing ribs 3 between the pull rod 1 and cross supporting frame 2.Can according to operable space, just
Degree requires to carry out a group weldering.
Pull rod 1 uses four-jaw type structure（That is the drag hook of pull rod）, make installing, is more convenient to use, being effective for maintenance unit,
Four-jaw type structure increases forced area, and makes maintenance unit uniform force, symmetrical, and dismounting bearing 7 is more time saving, laborsaving.
A wherein pull rod 1 is connected using fastening bolt 5, and is finally installed, positioned, adjusting, work as entire maintenance unit
Rotating ring section keeps suit, dismounting bearing more convenient, quick.Using four-jaw type structure（That is the drag hook of pull rod）, three-jaw fixes, and one
Pawl is flexible, meets heavy machinery enterprises, and the repair of large scale equipment bearing is replaced, reasonable for structure, complete, effective.
When making, each part is made as different parts by attached drawing 1, pull rod 1 presses figure CNC cutting 4, wherein one
It need to bore positioning spiro pit, when 2 groups of welderings of cross supporting frame, should ensure that force part is the best stress surface of bent beam, and pull rod 1
Spacing will ensure the fit clearance between bearing holder (housing, cover), so that it is guaranteed that maintenance unit can smoothly cover the bearing 7 that is packed into and need to repair.Group
Before dress, height when 200t screw jack 6 does not extend is measured, and understand 6 total kilometres of jack, determine cross supporting frame in figure
After location dimension L between 2 and pull rod 1, the group weldering between cross supporting frame 2 and pull rod 1, and 1 group weldering 3 of pull rod can be carried out
Part, last part pull rod 1 is after maintenance unit is entirely inserted in bearing 7, then carries out location and installation.
Claims (3)
1. a kind of large size bearing maintenance unit, it is characterised in that：Including cross supporting frame（2）With four pull rods（1）, the cross
Supporting rack（2）Left and right ends and bottom be welded with pull rod（1）, cross supporting frame（2）Top pass through fastening bolt（5）With
Dismountable pull rod（1）Connection, four pull rods（1）It is mutually parallel and and supporting rack（2）Place plane is vertical, the pull rod（1）
One end and cross supporting frame（2）End connection, the other end is to cross supporting frame（2）Center line be bent to form drag hook；Institute
State pull rod（1）On be also welded with several lifting lugs（4）.
2. a kind of large size bearing maintenance unit according to claim 1, it is characterised in that：The pull rod（1）Drag hook with
Pull rod（1）Vertically.
3. a kind of large size bearing maintenance unit according to claim 1, it is characterised in that：The pull rod（1）With cross-shaped
Support（2）Between pass through several bearing ribs（3）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363498.1U CN207961306U (en) | 2018-03-17 | 2018-03-17 | A kind of large size bearing maintenance unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363498.1U CN207961306U (en) | 2018-03-17 | 2018-03-17 | A kind of large size bearing maintenance unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961306U true CN207961306U (en) | 2018-10-12 |
Family
ID=63743944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820363498.1U Active CN207961306U (en) | 2018-03-17 | 2018-03-17 | A kind of large size bearing maintenance unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961306U (en) |
-
2018
- 2018-03-17 CN CN201820363498.1U patent/CN207961306U/en active Active
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