CN107891396B - Bearing drawing device - Google Patents
Bearing drawing device Download PDFInfo
- Publication number
- CN107891396B CN107891396B CN201711038402.0A CN201711038402A CN107891396B CN 107891396 B CN107891396 B CN 107891396B CN 201711038402 A CN201711038402 A CN 201711038402A CN 107891396 B CN107891396 B CN 107891396B
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- Prior art keywords
- bearing
- bracket
- core shaft
- rotary core
- upper junction
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a kind of bearing drawing devices, including hydraulic cylinder, it the drawing head that is fixedly connected on the hydraulic stem of hydraulic cylinder and is used to support in the support base in the rotation axis of bearing, support base is fixedly connected on the cylinder body of hydraulic cylinder and is sheathed on the outside of drawing head, the gap for placing bearing is equipped between drawing head and support base, drawing head includes the bracket for connecting with hydraulic stem, the rotary core shaft being rotatably arranged on bracket and the plectrum for being fixed at rotary core shaft bottom end, plectrum being capable of rotating except the circumferential surface for stretching out bracket or bouncing back within the circumferential surface of bracket with rotary core shaft.Such bearing drawing device can improve drawing efficiency in drawing bearing, reduce drawing difficulty, avoid the frequent down operation station of staff, be conducive to the physical and mental health of staff.
Description
Technical field
The present invention relates to bearing drawing technique field, in particular to a kind of bearing drawing device.
Background technique
Large-scale wind driven generator bearing is the key components and parts of generator.Currently, bearing is embedding generally by the way of hot jacket
Enter rotation axis inner ring, in the case where encountering generator dismantling, bearing is difficult to extract from rotation axis inner ring.
Traditional bearing is removed mode and is carried out in such a way that three hydraulic jacks cooperate auxiliary mould.However, extracting
Bearing needs three people cooperation, has certain requirement to operator's operation level, is easy to cause shaft strength uneven, influences the bearing longevity
Life, even damage bearing sometimes, and when shaft strength unevenness, bearing is easy stuck, and withdrawal process is time-consuming and laborious；Bearing, which is placed in, to be turned
Moving axis inner ring, about 2 meters far from ground of position, on shaft spacer flanger, worker needs frequently up and down, not meeting man-machine for operation position
It learns and requires；In operation process, bearing grease etc. pollutes, and station environment is poor.
Therefore, drawing efficiency how is improved in drawing bearing, reduces drawing difficulty, is that those skilled in the art need at present
Technical problems to be solved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of bearing drawing device drawing can be improved in drawing bearing
Efficiency reduces drawing difficulty.
To achieve the above object, the invention provides the following technical scheme:
A kind of bearing drawing device, including hydraulic cylinder, the drawing that is fixedly connected on the hydraulic stem of the hydraulic cylinder
Head and be used to support in the support base in the rotation axis of bearing, the support base be fixedly connected on the cylinder body of the hydraulic cylinder and
It is sheathed on the outside of the drawing head, the gap for placing bearing is equipped between the drawing head and the support base, it is described
Drawing head includes that bracket for connecting with the hydraulic stem, the rotary core shaft being rotatably arranged on the bracket and fixation are set
Plectrum in the rotary core shaft bottom end, the plectrum can stretch out the circumferential surface of the bracket with the rotation of the rotary core shaft
Except or retraction within the circumferential surface of the bracket.
Preferably, the bracket includes upper junction plate, the lower connecting plate below the upper junction plate and for preventing
The protector that only bearing inner race of bearing is impaired, hardness is lower than the bearing inner race, the protector are connected to the upper connection
Between plate and the lower connecting plate, the radially projecting circumferential surface in the lower connecting plate of the protector.
Preferably, connecting rod is equipped between the upper junction plate and the lower connecting plate, the connecting rod is equipped with by institute
The groove that upper junction plate extends to the lower connecting plate is stated, the protector is the nylon rod in the groove.
Preferably, fixes sleeve is connected between the upper junction plate and the lower connecting plate, the rotary core shaft runs through
It is stretched out in the upper junction plate, the insertion fixes sleeve and through the lower connecting plate, the plectrum is set to the lower connection
Under plate, the fixes sleeve is connected with the rotary core shaft by threaded fastener, in the shape that the threaded fastener is tightened
Under state, the plectrum stretches out except the circumferential surface of the bracket.
Preferably, the rotary core shaft is at least three, and all rotary core shafts are along the circumferential direction etc. of the hydraulic stem
Spacing is set on the bracket.
Preferably, the upper junction plate and the lower connecting plate are plectane.
Preferably, the drawing head is connected to the hydraulic stem by connecting rod, and the connecting rod is fixedly connected with the upper connection
Plate and through the upper junction plate and be fixedly connected with the lower connecting plate.
Preferably, the support base includes being fixedly connected on the pedestal of the cylinder body and being fixed above the pedestal
Lifting lug, the bottom of the pedestal are annular slab, the annular slab be equipped with for the bolted connecting hole of rotation axis.
Preferably, pass through flanged joint between the cylinder body of the hydraulic cylinder and the pedestal.
Preferably, run through on the peripheral wall of the pedestal and be equipped with through-hole, and each through-hole and each rotary core shaft
It is correspondingly arranged.
The drawing that bearing drawing device provided by the invention includes hydraulic cylinder, is fixedly connected on the hydraulic stem of hydraulic cylinder
It plug and is used to support in the support base in the rotation axis of bearing, support base is fixedly connected on the cylinder body of hydraulic cylinder and is sheathed on
The outside of drawing head, is equipped with gap for placing bearing between drawing head and support base, drawing head includes being used for and hydraulic stem
The bracket of connection, the rotary core shaft being rotatably arranged on bracket and the plectrum for being fixed at rotary core shaft bottom end, plectrum can
Rotating except the circumferential surface for stretching out bracket or bouncing back within the circumferential surface of bracket with rotary core shaft.
The bearing drawing device is transported to using station, support base is supported in rotation axis, provides force for hydraulic cylinder
Fulcrum.Hydraulic cylinder starting, hydraulic stem drive drawing head to stretch out support base and protrude into bearing inner race, and plectrum bounces back at the beginning
Within the circumferential surface of bracket, at this point, rotation rotary core shaft, rotary core shaft drives plectrum rotation, and plectrum is made to stretch out the circumferential surface of bracket
Except, so that plectrum be made to hold bearing from the bottom of bearing.
The reversal valve for switching hydraulic system in hydraulic cylinder, makes hydraulic cylinder counter motion and drawing head is driven to pull out bearing
Except rotation axis, bearing enters in the gap between support base and drawing head.After bearing is transported to specified station, reversely rotate
Rotary core shaft bounces back to plectrum within the circumferential surface of bracket, and bearing drawing device is mutually separated with bearing, realizes the drawer of bearing
Make.
In such bearing drawing device, turn of plectrum on the flexible and drawing head of hydraulic stem in hydraulic cylinder need to be only controlled
The dynamic drawing that can be realized to bearing, plectrum and rotary core shaft can guarantee the consistency of the stress in bearing withdrawal process, increase
The reliability in security performance and bearing withdrawal process is added, has reduced drawing difficulty, drawing is easy to operate, can be improved drawing
Efficiency, withdrawal process is time saving and energy saving, meets the requirement of ergonomics, especially solves large-scale wind driven generator and tears open reprocessing
Solution preocess middle (center) bearing dismantles problem and the dismantling operation of other large size bearings, versatile and compact-sized, occupied space
It is small.
Meanwhile the supporting role of support base can guarantee the stability of rotation axis during drawing bearing, make hydraulic
Bar and drawing head can smoothly take bearing out of, and the uniformity of shaft strength can be improved in drawing head, avoids bearing stuck, avoids axis
The service life of bearing is damaged and influenced to receiving, is remarkably improved the secondary use rate of bearing.
In addition, only staff is just needed to carry out close to the bearing drawing device when rotating rotary core shaft and plectrum,
The up and down motion of drawing head need to only control hydraulic cylinder and can be completed, and can be avoided the frequent down operation station of staff, and
Staff can be reduced in the time of the station operation, be conducive to the physical and mental health of staff.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the main view of bearing drawing device provided by the present invention；
Fig. 2 is the main view of support base in bearing drawing device provided by the present invention；
Fig. 3 is the top view of support base in bearing drawing device provided by the present invention；
Fig. 4 is the bottom view of support base in bearing drawing device provided by the present invention；
Fig. 5 is the main view of upper junction plate in bearing drawing device provided by the present invention；
Fig. 6 is the bottom view of upper junction plate in bearing drawing device provided by the present invention；
Fig. 7 is the top view of lower connecting plate in bearing drawing device provided by the present invention；
Fig. 8 is the top view of plectrum in bearing drawing device provided by the present invention；
Fig. 9 is the main view of plectrum in bearing drawing device provided by the present invention.
Fig. 1 is into Fig. 9: 1- hydraulic cylinder, 2- fixes sleeve, 21- upper junction plate, 22- lower connecting plate, 23- plectrum, 24-
Protector, 3- support base, 31- lifting lug, 32- pedestal, 33- annular slab, 34- top plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of bearing drawing device, and drawing efficiency can be improved in drawing bearing, is reduced
Drawing difficulty.
Referring to FIG. 1, Fig. 1 is the main view of bearing drawing device provided by the present invention.
In a kind of specific embodiment of bearing drawing device provided by the present invention, including hydraulic cylinder 1, it is fixedly connected on liquid
It drawing head on the hydraulic stem of compressing cylinder 1 and is used to support in the support base 3 in the rotation axis of bearing.Support base 3 is fixedly connected
In hydraulic cylinder 1 cylinder body and be sheathed on the outside of drawing head, be equipped between drawing head and support base 3 for placing between bearing
Gap, the gap can accommodate bearing.Drawing head includes bracket for connecting with hydraulic stem, the rotation being rotatably arranged on bracket
Core axis and the plectrum 23 for being fixed at rotary core shaft bottom end, plectrum 23 can stretch out the week of bracket with the rotation of rotary core shaft
Except face or retraction is within the circumferential surface of bracket, and the rotation of rotary core shaft can specifically be realized by manual control.
Wherein, Fig. 8 and Fig. 9 are please referred to, plectrum 23 is specifically as follows triangular plate and each apex angle is rounded down, one of them
The through-hole being connected with rotary core shaft is arranged in vertex, and plectrum 23 and rotary core shaft form cantilever design.Certainly, plectrum 23 can also be with
It is provided in round plate, rectangular slab or other shapes.
The bearing drawing device is transported to using station, support base 3 is supported in rotation axis, is provided and is applied for hydraulic cylinder 1
Power fulcrum.Hydraulic cylinder 1 starts, and hydraulic stem drives drawing head to stretch out support base 3 and protrudes into bearing inner race, and plectrum 23 is initial
When retraction within the circumferential surface of bracket, at this point, rotation rotary core shaft, rotary core shaft drive plectrum 23 rotate, make plectrum 23 stretch out
Except the circumferential surface of bracket, so that plectrum 23 be made to hold bearing from the bottom of bearing.
The reversal valve for switching hydraulic system in hydraulic cylinder 1, makes hydraulic cylinder counter motion and drawing head is driven to draw bearing
Out except rotation axis, bearing enters in the gap between support base 3 and drawing head.After bearing is transported to specified station, reversely
Rotary core shaft is rotated, bounces back to plectrum 23 within the circumferential surface of bracket, bearing drawing device is mutually separated with bearing, realizes bearing
Drawing work.
As it can be seen that reducing drawing difficulty by the mating reaction of hydraulic stem, drawing head, support base 3 in hydraulic cylinder 1, draw
It pulls out easy to operate, can be improved drawing efficiency, withdrawal process is time saving and energy saving, meets the requirement of ergonomics, especially solves
Large-scale wind driven generator bearing removal problem and the dismantling operation of other large size bearings, versatility during reprocessing dismantling
By force, and it is compact-sized, it occupies little space, meanwhile, the secondary use rate of bearing can be improved.
Specifically, Fig. 6 to Fig. 7 is please referred to, Fig. 5 is the main view of upper junction plate in bearing drawing device provided by the present invention
Figure；Fig. 6 is the bottom view of upper junction plate in bearing drawing device provided by the present invention；Fig. 7 is bearing drawing provided by the present invention
The top view of lower connecting plate in device.Bracket may include upper junction plate 21, the lower connecting plate 22 set on 21 lower section of upper junction plate
And the protector 24 for preventing the bearing inner race of bearing impaired, protector 24 are connected to upper junction plate 21 and lower connecting plate 22
Between, the hardness of protector 24 is lower than bearing inner race, the radially projecting circumferential surface in lower connecting plate 22 of protector 24.In drawing axis
When holding, bearing holder (housing, cover) is in the outside of bracket, by the setting of protector 24, when by external force and other emergency cases, in bearing
Circle can touch the protector 24 softer than bearing inner race matter, and drawing process middle (center) bearing inner ring is avoided directly to contact with bracket, thus
It avoids bearing inner race surface by equivalent damage is scratched, guarantees to extract bearing quality.
Further, protector 24, which can be set, is on the identical circle of the internal diameter of bearing inner race, in drawing process
In, protector 24 is in contact with bearing inner race, can play guiding role to bearing inner race.
Further, the positional relationship between upper junction plate 21 and protector 24 can be according between bearing and drawing head
Height relationships are configured.When bearing is dragged by plectrum 23, if upper junction plate 21 is not higher by bearing, protector 24 is set as
The radially projecting circumferential surface in upper junction plate 21, to make protector 24 protrude from entire bracket in the circumferential, to avoid upper company
Abrasion is generated between fishplate bar 21 and bearing inner race；If upper junction plate 21 is higher by bearing, whether protector 24 is radially protruded from
The circumferential surface of connecting plate 21 can be without limitation.
Wherein, protector 24 is preferably nonmetal parts.It is highly preferred that the company of being equipped between upper junction plate 21 and lower connecting plate 22
Extension bar, connecting rod are equipped with the groove extended from upper junction plate 21 to lower connecting plate 22, and protector 24 is the Buddhist nun in groove
Imperial stick.The bonding strength between upper junction plate 21 and lower connecting plate 22 can be improved in the setting of connecting rod.
Specifically, fixes sleeve 2 has been can connect between upper junction plate 21 and lower connecting plate 22, rotary core shaft, which is set to, fixes
In sleeve 2, and fixes sleeve 2 is connected with rotary core shaft by threaded fastener, in the state that threaded fastener is tightened, plectrum
23 stretch out except the circumferential surface of bracket, it is ensured that when plectrum 23 holds up bearing, rotary core shaft will not be rotated at random, and avoid bearing
It is detached from plectrum 23 during the drawing process, can be improved the safety of drawing operation.
Or the top of rotary core shaft can be set external screw thread, threaded fastener can for can in rotary core shaft
External screw thread cooperate the locknut that screws, in the initial state, plectrum 23 bounces back within the circumferential surface of bracket, and locknut can
To be in tightening state, after protruding into drawing head among bearing, locknut is unclamped, rotary core shaft is rotated, stretches plectrum 23
Out except the circumferential surface of bracket, then locknut is tightened, the position of plectrum 23 is fixed.
Wherein, the quantity of rotary core shaft can be configured according to actual needs, be for example, at least three, preferably three
It is a, so as to save the cost while plectrum 23 provides enough endurance.Further, all rotary core shafts can be along hydraulic
The circumferential of bar is equidistantly set on bracket, so that plectrum 23 can provide more uniform support force for bearing.
Specifically, upper junction plate 21 and lower connecting plate 22 can be plectane, to be adapted with the shape of bearing.Its
In, the radial dimension of lower connecting plate 22 can be close to the internal diameter of bearing inner race, steady when bearing is installed on drawing head to improve
It is qualitative.Further, a downwardly projecting step, the radial dimension of the step can be equipped on the lower surface of upper junction plate 21
It is relatively small, it can avoid hitting with bearing while improving 21 intensity of upper junction plate.
Specifically, drawing head can be connected to hydraulic stem by connecting rod, and connecting rod is fixedly connected with upper junction plate 21 and through upper
Connecting plate 21 and be fixedly connected with lower connecting plate 22, hydraulic stem transmits power to drawing head by connecting rod, and connecting rod can adapt to respectively
The shape of hydraulic stem and drawing head, convenient for improving the matching of hydraulic cylinder 1 and drawing head.
Further, it can be carried out using dismountable mode between connecting rod and drawing head, between connecting rod and hydraulic stem
Connection, such as be threadedly coupled, in order to the maintenance and replacement of each component.
Specifically, Fig. 2 to Fig. 4 is please referred to, Fig. 2 to Fig. 4 is followed successively by support base in bearing drawing device provided by the present invention
Main view, top view and bottom view.Support base 3 may include being fixedly connected on the pedestal 32 of cylinder body and being fixed at pedestal 32
The lifting lug 31 of top, the bottom of pedestal 32 are annular slab 33, annular slab 33 be equipped with for the bolted connection of rotation axis
Hole, to further increase the reliability of support base 3 support and positioning.
Meanwhile in use, the lifting lug 31 with driving lifting lug be connected, using driving by bearing drawing device Integral lifting extremely
Using station, i.e. institute's drawing rotates axle bearing upper surface flange position, then restarts hydraulic cylinder 1 and stretches out drawing head, plectrum
23 in place after, switch hydraulic system in reversal valve, so that 1 hydraulic stem of hydraulic cylinder is pulled drawing head round about, to bearing
It completes after extracting, bearing is transported to designated position using driving, restores the initial position of plectrum 23 later, bearing and bearing is drawn
After pulling device separation, bearing drawing device is transported to specified station using driving again, carries out the drawing operation of next bearing, from
And further increase bearing drawing efficiency.
It further, can be convenient for disassembly and assembly by flanged joint between the cylinder body of hydraulic cylinder 1 and pedestal 32.Wherein, seat
Upper flange, lower flange can be respectively set to realize the connection with hydraulic cylinder 1 in the two sides up and down of the top plate 34 of body 32.
Further, it can run through on the peripheral wall of pedestal 32 and be equipped with through-hole, and each through-hole is corresponding with each rotary core shaft
Setting, the setting of the through-hole can be convenient the rotation process to rotary core shaft, without stretching out drawing head except support base 3
Realize the rotation of rotary core shaft.
Wherein, the components such as the support base 3 of the bearing drawing device, drawing head can be welded by plate.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Bearing drawing device provided by the present invention is described in detail above.Specific case pair used herein
The principle of the present invention and embodiment are expounded, method of the invention that the above embodiments are only used to help understand
And its core concept.It should be pointed out that for those skilled in the art, before not departing from the principle of the invention
It puts, can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the guarantor of the claims in the present invention
It protects in range.
Claims (9)
1. a kind of bearing drawing device, which is characterized in that including hydraulic cylinder (1), be fixedly connected on the hydraulic cylinder (1)
It drawing head on hydraulic stem and is used to support in the support base (3) in the rotation axis of bearing, the support base (3) is fixedly connected on
The cylinder body of the hydraulic cylinder (1) and the outside for being sheathed on the drawing head, set between the drawing head and the support base (3)
There is a gap for placing bearing, the drawing head includes bracket for connecting with the hydraulic stem, is rotatably arranged in institute
The plectrum (23) stated the rotary core shaft on bracket and be fixed at the rotary core shaft bottom end, the plectrum (23) can be with institute
It states except the circumferential surface of the rotation stretching bracket of rotary core shaft or retraction is within the circumferential surface of the bracket；
Wherein, the bracket include upper junction plate (21), be set to the upper junction plate (21) below lower connecting plate (22) and
For preventing the protector (24) that the bearing inner race of bearing is impaired, hardness is lower than the bearing inner race, the protector (24) is even
It is connected between the upper junction plate (21) and the lower connecting plate (22), the protector (24) is radially projecting in the lower company
The circumferential surface of fishplate bar (22).
2. bearing drawing device according to claim 1, which is characterized in that the upper junction plate (21) and the lower connection
Connecting rod is equipped between plate (22), the connecting rod is equipped with to be extended by the upper junction plate (21) Xiang Suoshu lower connecting plate (22)
Groove, the protector (24) is nylon rod in the groove.
3. bearing drawing device according to claim 1, which is characterized in that the upper junction plate (21) and the lower connection
It is connected between plate (22) fixes sleeve (2), the rotary core shaft is through the upper junction plate (21), the insertion fixes sleeve
(2) it is stretched out in and through the lower connecting plate (22), the plectrum (23) is set under the lower connecting plate (22), the fixation
Sleeve (2) is connected with the rotary core shaft by threaded fastener, in the state that the threaded fastener is tightened, the plectrum
(23) it stretches out except the circumferential surface of the bracket.
4. bearing drawing device according to claim 1, which is characterized in that the rotary core shaft is at least three, and institute
There is the rotary core shaft to be equidistantly set on the bracket along the circumferential direction of the hydraulic stem.
5. bearing drawing device according to claim 1, which is characterized in that the upper junction plate (21) and the lower connection
Plate (22) is plectane.
6. bearing drawing device according to claim 1, which is characterized in that the drawing head is connected to described by connecting rod
Hydraulic stem, the connecting rod be fixedly connected the upper junction plate (21) and through the upper junction plate (21) and be fixedly connected it is described under
Connecting plate (22).
7. according to claim 1 to bearing drawing device described in 6 any one, which is characterized in that the support base (3) includes
The lifting lug (31) for being fixedly connected on the pedestal (32) of the cylinder body and being fixed above the pedestal (32), the pedestal (32)
Bottom be annular slab (33), the annular slab (33) be equipped with for the bolted connecting hole of rotation axis.
8. bearing drawing device according to claim 7, which is characterized in that the cylinder body of the hydraulic cylinder (1) with it is described
Pedestal passes through flanged joint between (32).
9. bearing drawing device according to claim 7, which is characterized in that run through on the peripheral wall of the pedestal (32) and be equipped with
Through-hole, and each through-hole is correspondingly arranged with each rotary core shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038402.0A CN107891396B (en) | 2017-10-30 | 2017-10-30 | Bearing drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038402.0A CN107891396B (en) | 2017-10-30 | 2017-10-30 | Bearing drawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107891396A CN107891396A (en) | 2018-04-10 |
| CN107891396B true CN107891396B (en) | 2019-11-05 |
Family
ID=61802564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711038402.0A Active CN107891396B (en) | 2017-10-30 | 2017-10-30 | Bearing drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107891396B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201863174U (en) * | 2010-11-06 | 2011-06-15 | 戴志彬 | Jaw puller |
| CN203752073U (en) * | 2014-03-25 | 2014-08-06 | 济钢集团有限公司 | Universal hydraulic cartridge valve change tool |
| CN204076173U (en) * | 2014-09-02 | 2015-01-07 | 青岛中联水泥有限公司 | Fluid coupling draw bench special |
| CN204248801U (en) * | 2014-11-24 | 2015-04-08 | 国家电网公司 | Heavy duty detergent stator bearing shell dismounting device |
| CN206475129U (en) * | 2017-02-17 | 2017-09-08 | 李建宁 | Combined wheel puller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9969069B2 (en) * | 2015-04-27 | 2018-05-15 | United Technologies Corporation | Methods and tools for pressing a ring seal into a component |
-
2017
- 2017-10-30 CN CN201711038402.0A patent/CN107891396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201863174U (en) * | 2010-11-06 | 2011-06-15 | 戴志彬 | Jaw puller |
| CN203752073U (en) * | 2014-03-25 | 2014-08-06 | 济钢集团有限公司 | Universal hydraulic cartridge valve change tool |
| CN204076173U (en) * | 2014-09-02 | 2015-01-07 | 青岛中联水泥有限公司 | Fluid coupling draw bench special |
| CN204248801U (en) * | 2014-11-24 | 2015-04-08 | 国家电网公司 | Heavy duty detergent stator bearing shell dismounting device |
| CN206475129U (en) * | 2017-02-17 | 2017-09-08 | 李建宁 | Combined wheel puller |
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| Publication number | Publication date |
|---|---|
| CN107891396A (en) | 2018-04-10 |
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