CN104552142B - A kind of bogie axle case lid extracting tool - Google Patents
A kind of bogie axle case lid extracting tool Download PDFInfo
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- CN104552142B CN104552142B CN201410707345.0A CN201410707345A CN104552142B CN 104552142 B CN104552142 B CN 104552142B CN 201410707345 A CN201410707345 A CN 201410707345A CN 104552142 B CN104552142 B CN 104552142B
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- Prior art keywords
- pulling force
- box cover
- case lid
- axle box
- axis hole
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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
- B25B27/023—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 using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention relates to a kind of bogie axle case lid extracting tool, including positioning head, augmentor and puller system, described positioning head is fixed on the end of described augmentor for holding out against axletree, described puller system includes fixed part and the one or more extended or pulling force pawl of withdrawal being arranged on described fixed part, engaging to be connected between described fixed part with described augmentor and realize opposite direction relative movement, described pulling force pawl stretches to the inner side of axle box cover and is buckled in when stretching out on the medial wall of described axle box cover.The present invention utilizes the spindle nose of EMU axletree to position, thrust from inside to outside is produced to thrust force method by interior, uniform force application, flexible to operation, accurate positioning is firm, in that context it may be convenient to carry out the dismounting of Highs-speed motor train unit bogie axle box cover, and can ensure that the dismounting quality of bogie axle case lid, ensure that axle box cover is indeformable and keep the fineness on surface, reducing working strength, improve work efficiency.
Description
Technical field
The present invention relates to a kind of bogie axle case lid extracting tool for dismantling bogie axle casing and axle box cover, belong to
In rail vehicle technological equipment.
Background technology
In Highs-speed motor train unit bogie maintenance and maintenance process, bogie axle case lid need to be dismantled, in order to it is right to take turns it
Maintenance operation.Axle box cover is aluminum alloy materials, and its case hardness is relatively low, coordinates with parent closely, is overhauling
During with maintenance, easily cause deformation and the damaged surfaces of axle box cover due to discontinuity, and waste time and energy, work
Make intensity big, complex process.
In order to solve the problems referred to above, at the Chinese patent " rake for discharging axle box cover " of Patent No. 200720304994.1
In, disclose a kind of mechanism can moved back and unload axle box end cap, its object is to conveniently dismantle axle box cover or axle box,
Protection axle box and axle box cover are injury-free.Take off son be arranged on the side of axle box cover as it is shown in figure 1, this moves back to unload, profit
Be pressed in the side of axletree with annular top cover 1 top, T-shaped top cover 2 is buckled in the inside edge of axle box end cap, carries out moving back unloading
During operation, interacted with annular top cover 1 by the head of bolt 3, annular top cover 1 is ejected, annular top cover 1
Withstanding on axletree side and immovable, the counteracting force by screw thread moves outer for T-shaped top cover 2, so by axle box or
Axle box cover ejects, it is achieved move back unloading functions.This structure is very simple, but T-shaped top cover 2 and annular top cover 1 are required to
Move back unload before penetrate from the axis hole of axle box cover, owing to the size of annular top cover 1 is fixing, and in order to
Moving back and unload axle box cover, the diameter of annular top cover 1 is greater than the diameter of the axis hole of axle box cover so that it is fixed and positioned the most non-
The most inconvenient.
Summary of the invention
Present invention is primarily aimed at solution the problems referred to above and deficiency, it is provided that one can ensure that axle box cover is indeformable also
Keep surface smoothness, and easy to operate bogie axle case lid extracting tool.
For achieving the above object, the technical scheme is that
A kind of bogie axle case lid extracting tool, including positioning head, augmentor and puller system, described positioning head
Being fixed on the end of described augmentor for holding out against axletree, described puller system includes fixed part and is arranged on described
The one or more extended or pulling force pawl of withdrawal on fixed part, nibbles between described fixed part and described augmentor
Closing connection and realize opposite direction relative movement, described pulling force pawl stretches to the inner side of axle box cover and is buckled in institute when stretching out
State on the medial wall of axle box cover.
Further, described augmentor is a screw mandrel, and described fixed part is sleeved on the outside of described screw mandrel, both it
Between be threaded connection.
Further, an afterburning handle for rotary screw is installed in the other end of described augmentor.
Further, described fixed part includes that axis hole positioner, described axis hole positioner are sleeved on described afterburning dress
In the outside put the axis hole being arranged on axle box cover, its outside dimension is identical with the internal diameter size of axis hole.
Further, described axis hole positioner is a cylinder-like structure, and it has one or more containing cavity, institute
State pulling force pawl correspondence when regaining to be contained in described containing cavity.
Further, described fixed part also includes that a grip part, described grip part are fixed on described axis hole positioner
Side, described grip part is connected with the engagement of described augmentor.
Further, described puller system also includes angular adjustment apparatus, described pulling force pawl and described angular adjustment apparatus
Connecting, described angular adjustment apparatus is used for rotating described pulling force pawl to achieve withdrawal or to stretch out.
Further, described angular adjustment apparatus include a rotating disk and be correspondingly arranged with described pulling force pawl one or
Multiple forks, one end of described fork is provided with slotted hole, and described rotating disk is provided with one or more pivot pin,
Sliding in described pivot pin correspondence inserts described slotted hole and in described slotted hole, the other end of described fork is by turning
Axle is fixing with described pulling force pawl to be connected, and multiple described pivot pins and rotating shaft are pressed concentric circular distribution and arranged.
Further, described rotating disk is protruding with for holding the Handheld Division rotating described rotating disk to side, described hand-held
Portion and rotating disk are sleeved on the outside of described augmentor.
Further, the internally installed of described positioning head has angular contact ball bearing.
To sum up content, a kind of bogie axle case lid extracting tool of the present invention, utilize EMU axletree
End is as the force side of counteracting force, by the interior thrust produced to thrust force method from inside to outside, uniform force application, behaviour
Making convenient, flexible, accurate positioning is firm, in that context it may be convenient to carry out the dismounting of Highs-speed motor train unit bogie axle box cover, and
And can ensure that the dismounting quality of bogie axle case lid, it is ensured that axle box cover is indeformable and keeps the fineness on surface, fall
Low working strength, improves work efficiency.
Accompanying drawing explanation
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is extracting tool structural representation of the present invention；
Fig. 3 is screw structure schematic diagram of the present invention；
Fig. 4 is positioning head structural representation of the present invention；
Fig. 5 is pulling force pawl structural representation of the present invention；
Fig. 6 is the A direction view of Fig. 5；
Fig. 7 is axle-box positioning device structural representation of the present invention；
Fig. 8 is the structure schematic diagram of Fig. 7；
Fig. 9 is fork structural representation of the present invention；
Figure 10 is rotary disk structure schematic diagram of the present invention；
Figure 11 is the B direction view of Figure 10.
As it is shown in figure 1, annular top cover 1, T-shaped top cover 2, bolt 3；
As shown in Figures 2 to 11, positioning head 4, augmentor 5, puller system 6, screw mandrel 7, mounting head 8, through hole 9,
Afterburning handle 10, angular contact ball bearing 11, bearing trim ring 12, fixed part 13, pulling force pawl 14, axis hole positioner
15, rotating shaft 16, containing cavity 17, through hole 18, accommodate chamber 19, grip part 20, knurled portion 21, angle adjustment fills
Put 22, rotating disk 23, fork 24, slotted hole 25, pin hole 26, shaft hole 27, adjust 28, knurled portion
29, rotating shaft through hole 30, protection cap 31, lightening hole 32.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
As in figure 2 it is shown, the invention provides a kind of bogie axle case lid extracting tool, including positioning head 4, afterburning dress
Put 5 and puller system 6.Positioning head 4 is fixed on the end of one end of augmentor 5, and positioning head 4 is used for pushing up when dismounting
The side end of tight axletree (not shown), is connected formation by engagement between puller system 6 with augmentor 5 anti-
The relative movement in direction, and then thrust from inside to outside is produced from the inner side of axle box cover, it is achieved the behaviour of dismounting axle box cover
Make.
Wherein, as shown in Figures 2 and 3, in order to simplify overall structure, also allowing for operation, augmentor 5 uses one
Screw mandrel 7, screw mandrel 7 uses stainless steel material, and to ensure integrally-built intensity, and screw mandrel 7 preferably employs trapezoidal silk
Bar, increases force value and durable owing to intensity own is higher.The top end of screw mandrel 7 has a mounting head
8, mounting head 8 has a through hole 9, is inserted into an afterburning handle 10 at through hole 9, afterburning handle 10 facilitates operator
Rotary screw 7.
Bottom terminal ends at screw mandrel 7 installs positioning head 4, as shown in Figure 4, is provided with angular contact ball axle in positioning head 4
Holding 11, angular contact ball bearing 11 side is provided with bearing trim ring 12, passes through screw thread between bearing trim ring 12 and positioning head 4
Fixing connection, the bottom terminal ends of screw mandrel 7 has external screw thread, in positioning head 4 in the opposite side of bearing trim ring 12 has
Screw thread, is threaded connection between screw mandrel 7 and positioning head 4, and the size phase of positioning head 4 external diameter and axletree setting circle
With.When dismounting, positioning head 4 holds out against the end at axletree, and it is fixed freely to be found by angular contact ball bearing 11
Site, possesses the feature being accurately positioned and freely determining thrust point, reduces the impact of alignment error.For ensureing entirety
The intensity of structure, positioning head 4 uses stainless steel material equally.
As in figure 2 it is shown, puller system 6 include fixed part 13 and be arranged on fixed part 13 one or more extended
Or the pulling force pawl 14 regained, pulling force pawl 14 passes from axle box cover axis hole when retracted state and stretches in axle box cover
Side, is buckled in when stretching out state on the medial wall of axle box cover, between fixed part 13 and screw mandrel 7 by screw-threaded engagement even
Connecing and realize opposite direction relative movement, fixed part 13, when dismounting, needs to be relatively fixed, and holds out against car to rotate at screw mandrel 7
Make pulling force pawl 14 reversely move while axle and then produce thrust from inside to outside, axle box cover is disassembled.
As shown in Figure 2, Figure 5 and Figure 6, in the present embodiment, in order to simplify overall structure, pulling force pawl 14 be one can hang down
Rotate in straight plane has certain thickness platy structure, and pulling force pawl 14 is fixing connects a rotating shaft 16, pulling force pawl 14
And can be fixed together by interference fit between rotating shaft 16, it is also possible to directly integrally casting molding, it is also possible to
It is threaded connection.Pulling force pawl 14 and rotating shaft 16 form L-shaped, and when pulling force pawl 14 90-degree rotation, pulling force pawl 14 stretches out,
Form state as shown in Figure 2, can be buckled on the medial wall of axle box cover, when needing the axis hole through axle box cover,
Pulling force pawl 14 reversely rotates 90 degree, and pulling force pawl 14 is regained, and then ensures to pass from axis hole smoothly.In order to protect
Axle box cover (not shown) uniform force, pulling force pawl 14 preferably employs and is circumferentially uniformly arranged three.Separately, for
Ensure that integrally-built intensity, pulling force pawl 14 and rotating shaft 16 all use stainless steel material.
As shown in Fig. 2, Fig. 7 and Fig. 8, fixed part 13 includes that axis hole positioner 15, axis hole positioner 15 are sleeved on
The outside of screw mandrel 7, when dismounting, axis hole positioner 15 is arranged in the axis hole of axle box cover, its outside dimension and axle
The internal diameter size in hole is identical, serves the effect of axially location, it is ensured that the accurate positioning of three pulling force pawls 14 is firm, and
And when pushing out uniform force application, and then ensure axle box cover dismounting quality.
In the present embodiment, axis hole positioner 15 uses a cylindrical-shaped structure, so can reduce processing and tool group
Dress difficulty, the external diameter of cylindrical-shaped structure is identical with the internal diameter size of axis hole, axially and radially go up all have bigger
Contact location area, make location convenient accurately.In the centre of axis hole positioner 15, there is through hole 18, silk
Bar 7 is fixed with positioning head 4 through the through hole 18 at axis hole positioner 15 center and is connected.
Circumferentially being evenly arranged with three containing cavities 17 on axis hole positioner 15, containing cavity 17 is semicircular knot
Structure, is arranged on the circumference of axis hole positioner 15 side, and pulling force pawl 14 correspondence when regaining is contained in containing cavity 17.
Certainly, containing cavity 17 can also be arranged on the circumference of axis hole positioner 15 ringwise only with one.At axle
It is additionally provided with on hole positioning device 15 and multiple subtracts metapore 32, to alleviate the weight of whole device.
Positioning head 4 can be disposed entirely within the outside of axis hole positioner 15, it is also possible in axis hole positioner 15
The heart arranges the receiving chamber 19 of an indent, and positioning head 4 can completely or partially be contained in receiving chamber 19, is not using
Time positioning head 4 is played certain protective effect.
Axis hole positioner 15 can also use radial structure, and the center of radial structure is contained in screw mandrel 7
Outside, the external diameter of radial structure is identical with the internal diameter size of axis hole.
Fixed part 13, when dismounting, needs to be relatively fixed, can carry out relative with Selection utilization axis hole positioner 15
Fixing, axis hole positioner 15 is directly fixed on axle box cover by clamp or securing member etc., or by other machine
Tool instrument fixed shaft hole positioner 15 part.When using this kind of fixed form, the center of axis hole positioner 15 leads to
Need on the inwall in hole 18 to arrange the female thread coordinated with screw mandrel 7.
In the present embodiment, operate for convenience, connect one in the side of axis hole positioner 15 by screw is fixing
The grip part 20 gripped for operator's hands, grip part 20 is sleeved on the outside of screw mandrel 7, and its center has female thread,
Being connected by screw-threaded engagement with between screw mandrel 7, screw mandrel 7 is being then smooth section through one section of axis hole positioner 15,
The through hole 18 at axis hole positioner 15 center is also between smooth hole, and screw mandrel 7 to be matched in clearance, and screw mandrel 7 is at through hole
Rotate in 18.During dismounting, operator grasps grip part 20, then can realize drawing by rotating afterburning handle 10
Power pawl 14 relative movement laterally.Operate for convenience, the outer surface of grip part 20 is provided with knurled portion
21, the hands when gripping can be avoided to skid.
As in figure 2 it is shown, in the present embodiment, stretching out or being retracted through angular adjustment apparatus 22 of pulling force pawl 14 realizes, angle
Degree adjusting apparatus 22 includes a rotating disk 23 and three forks 24 being correspondingly arranged with pulling force pawl 14.As it is shown in figure 9,
Fork 24 is Long Circle structure, and its one end is provided with slotted hole 25, as shown in Figure 10, the most equal in rotating disk 23
Even it is provided with three pin holes 26, each pin hole 26 is threadably secured one pivot pin (not shown) of connection,
Sliding in the slotted hole 25 of pivot pin correspondence insertion fork 24 and in slotted hole 25, the other end of fork 24 is provided with and turns
Axis hole 27, the end of shaft hole 27 has female thread, as it is shown in figure 5, the end of the fixing rotating shaft 16 connected of pulling force pawl 14
Portion has external screw thread, and rotating shaft 16 is threadably secured with shaft hole 27 and links together.As shown in Figure 7 and Figure 8, exist
Circumferentially being evenly arranged with three rotating shaft through holes 30 on axis hole positioner 15, three rotating shafts 16 are respectively from three rotating shafts
Through hole 30 is connected through fixing with fork 24.Three pivot pins and three rotating shafts 16 are all arranged by concentric circular distribution, with
Ensure that three pulling force pawls 14 stretch out simultaneously or regain, and the angle stretched out is identical, also between axle box cover medial wall
Contact area is identical, and then ensures axle box cover uniform force.Operator rotates rotating disk 23, three axles when dismounting
Pin slides respectively in three slotted holes 25, drives three forks 24 to rotate rotating around three shaft holes 27, and then band
Dynamic three rotating shafts 16 rotate, it is achieved the rotation on a vertical plane of three pulling force pawls 14, i.e. realize three pulling force pawls 14
Stretch out or regain.
As shown in figure 11, operator rotates rotating disk 23 for convenience, protrudes one in the side of rotating disk 23 for hands
The adjustment gripped 28, adjust 28 and rotating disk 23 be sleeved on the outside of grip part 20 also and between grip part 20 between
Gap coordinates and can relatively rotate, and operator holds and adjusts 28 that is rotatable rotating disks 23, and then realizes pulling force pawl 14
Stretch out or regain, flexible to operation, uniform force, Highs-speed motor train unit bogie axle box can be ensured well
The dismounting quality of lid, and reduce working strength, improve work efficiency.In order to further facilitate operator's operation,
In the present embodiment, also in adjustment, the outer surface of 28 is additionally provided with knurled portion 29.
As in figure 2 it is shown, angular adjustment apparatus 22 integral installation is in the side of axis hole positioner 15, fill in angle adjustment
The periphery putting 22 arranges a protection cap 31, and protection cap 31 can be with the fork 24 of degree of protection adjusting apparatus 22, pivot pin etc.
Parts, and make outward appearance more attractive in appearance, fixing even by screw between protection cap 31 and axis hole positioner 15
It is connected together.
The step utilizing this tool ejector axle box cover is described below in detail:
1, when carrying out axle box cover dismounting, operator holds the rotation adjusted 28, in anglec of rotation adjusting apparatus 22
Dish 23, makes three containing cavities 17 that three pulling force pawls 14 are recovered on axis hole positioner 15 circumference respectively.,
2, three pulling force pawls 14 and axis hole positioner 14 are partially placed in the axis hole of axle box cover, axis hole positioner
15 realize axial location with the shaft hole matching of axle box cover, and now, three pulling force pawls 14 have stretched to the inner side of axle box cover.
3, the angular contact ball bearing 11 in positioning head 4 is utilized the free movable feature of little scope can to find anchor point, will
Positioning head 4 and the setting circle abutting contact of axle end.
4, operator hold adjustment 28, opposite direction rotation rotating disk 23, rotating disk 23 rotarily drive three pivot pins
Slide in the slotted hole 25 of three forks 24 simultaneously, drive three forks 24 to rotate rotating around three shaft holes 27,
And then drive three rotating shafts 16 to rotate, it is achieved and the 90 degree of rotations on a vertical plane of three pulling force pawls 14, i.e. realize three
Stretching out of individual pulling force pawl 14, now, three pulling force pawls 14 reach the periphery of axis hole positioner 14 simultaneously.
5, operator holds the knurled portion 21 of grip part 20, then rotates afterburning handle 10, makes positioning head 4 hold out against car
The end of axle.
6, operator holds grip part 20 continuation and firmly rotates afterburning handle 10, axis hole positioner 15 and three pulling force
Pawl 14 under the effect that screw mandrel 7 rotates laterally opposite direction move, three pulling force pawls 14 are buckled in the medial wall of axle box cover
On, while three pulling force pawls 14 move laterally, produce thrust from inside to outside, make axle box cover pull down.
7, after pulling down axle box cover, then reversely rotate rotating disk 23, make three pulling force pawls 14 again be retracted to axis hole location
In three containing cavities 17 of device 15, deviate from from the axis hole of axle box cover, in case next time uses.
This instrument utilizes the end of EMU axletree to position, and is produced from inside to outside to thrust force method by interior
Thrust carries out axle box cover dismounting, not only uniform force application, and flexible to operation, accurate positioning is firm, in that context it may be convenient to
Carry out the dismounting of Highs-speed motor train unit bogie axle box cover, and can ensure that the dismounting quality of bogie axle case lid, protect
Card axle box cover is indeformable and keeps the fineness on surface, reduces working strength, improves work efficiency.
As it has been described above, combine the plan content given by accompanying drawing, similar technical scheme can be derived.In every case it is
Without departing from the content of technical solution of the present invention, any letter above example made according to the technical spirit of the present invention
Single amendment, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (8)
1. a bogie axle case lid extracting tool, it is characterised in that: include positioning head, augmentor and pulling force dress
Putting, described positioning head is fixed on the end of described augmentor for holding out against axletree, and described puller system includes fixing
Portion and the one or more extended or pulling force pawl of withdrawal being arranged on described fixed part, described pulling force pawl is being regained
Through stretching to the inner side of axle box cover and being buckled in axle box cover when stretching out state from axle box cover axis hole during state
On sidewall, between described fixed part with described augmentor, engagement is connected and realizes opposite direction relative movement；
Described puller system also includes that angular adjustment apparatus, described pulling force pawl are connected with described angular adjustment apparatus, institute
State angular adjustment apparatus for rotating described pulling force pawl to achieve withdrawal or to stretch out；
Described angular adjustment apparatus includes a rotating disk and one or more pulls out with what described pulling force pawl was correspondingly arranged
Fork, one end of described fork is provided with slotted hole, and described rotating disk is provided with one or more pivot pin, described axle
Sliding in pin correspondence inserts described slotted hole and in described slotted hole, the other end of described fork passes through rotating shaft and institute
Stating the fixing connection of pulling force pawl, multiple described pivot pins and rotating shaft are pressed concentric circular distribution and are arranged.
Bogie axle case lid extracting tool the most according to claim 1, it is characterised in that: described augmentor
Being a screw mandrel, described fixed part is sleeved on the outside of described screw mandrel, is threaded connection between the two.
Bogie axle case lid extracting tool the most according to claim 2, it is characterised in that: at described afterburning dress
An afterburning handle for rotary screw is installed in the other end put.
Bogie axle case lid extracting tool the most according to claim 1, it is characterised in that: described fixed part bag
Including axis hole positioner, described axis hole positioner is sleeved on the outside of described augmentor and is arranged on axle box cover
In axis hole, its outside dimension is identical with the internal diameter size of axis hole.
Bogie axle case lid extracting tool the most according to claim 4, it is characterised in that: described axis hole positions
Device is a cylinder-like structure, and it has one or more containing cavity, and described pulling force pawl correspondence when regaining houses
In described containing cavity.
Bogie axle case lid extracting tool the most according to claim 4, it is characterised in that: described fixed part is also
Including a grip part, described grip part is fixed on the side of described axis hole positioner, and described grip part adds with described
Power apparatus engagement connects.
Bogie axle case lid extracting tool the most according to claim 1, it is characterised in that: described rotating disk to
Side is protruding with for holding the Handheld Division rotating described rotating disk, and described Handheld Division and rotating disk are sleeved on described reinforcing
The outside of device.
Bogie axle case lid extracting tool the most according to claim 1, it is characterised in that: described positioning head
Internally installed have angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707345.0A CN104552142B (en) | 2014-11-28 | 2014-11-28 | A kind of bogie axle case lid extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707345.0A CN104552142B (en) | 2014-11-28 | 2014-11-28 | A kind of bogie axle case lid extracting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104552142A CN104552142A (en) | 2015-04-29 |
| CN104552142B true CN104552142B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410707345.0A Active CN104552142B (en) | 2014-11-28 | 2014-11-28 | A kind of bogie axle case lid extracting tool |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619319B (en) * | 2015-12-22 | 2017-07-07 | 中国航天空气动力技术研究院 | Wind-tunnel balance tapered sleeve provision for disengagement |
| CN106737390B (en) * | 2017-01-23 | 2019-08-23 | 中国航发沈阳发动机研究所 | A kind of casing calotte disassembling fixture |
| CN108581942B (en) * | 2017-12-26 | 2020-04-03 | 中国航发四川燃气涡轮研究院 | Device and method for decomposing inner ring of roller bearing in annular cavity |
| CN108943500B (en) * | 2018-06-08 | 2021-04-02 | 国宏中晶集团有限公司 | Freezing reducing mechanism of junked tire |
| CN108527245B (en) * | 2018-06-19 | 2024-07-19 | 泰州市铧颐特种装备有限公司 | Piston pin ejector |
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|---|---|---|---|---|
| US5699701A (en) * | 1996-05-07 | 1997-12-23 | Cotten, Jr.; David L. | Tool for removing vehicle gas tank cap |
| US5966790A (en) * | 1996-06-11 | 1999-10-19 | Freistaat Bayern, vertreten durch die Friedrich-Alexander-Universitat Erlangen-Nurnberg, diese vertreten durch den Rektor Prof. Dr. Gotthard Jasper | Separating tool |
| CN2409019Y (en) * | 2000-01-27 | 2000-12-06 | 大连机车车辆厂 | Hydraulic drawing machine for bolt of main bearing of diesel engine |
| CN2411086Y (en) * | 2000-02-25 | 2000-12-20 | 赖锦溢 | Morse taper-shank handle separator |
| CN103395041A (en) * | 2013-06-25 | 2013-11-20 | 吴江市黎里建兴铸件厂 | Bearing puller |
| CN204277922U (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | A kind of bogie axle case lid extracting tool |
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2014
- 2014-11-28 CN CN201410707345.0A patent/CN104552142B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699701A (en) * | 1996-05-07 | 1997-12-23 | Cotten, Jr.; David L. | Tool for removing vehicle gas tank cap |
| US5966790A (en) * | 1996-06-11 | 1999-10-19 | Freistaat Bayern, vertreten durch die Friedrich-Alexander-Universitat Erlangen-Nurnberg, diese vertreten durch den Rektor Prof. Dr. Gotthard Jasper | Separating tool |
| CN2409019Y (en) * | 2000-01-27 | 2000-12-06 | 大连机车车辆厂 | Hydraulic drawing machine for bolt of main bearing of diesel engine |
| CN2411086Y (en) * | 2000-02-25 | 2000-12-20 | 赖锦溢 | Morse taper-shank handle separator |
| CN103395041A (en) * | 2013-06-25 | 2013-11-20 | 吴江市黎里建兴铸件厂 | Bearing puller |
| CN204277922U (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | A kind of bogie axle case lid extracting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104552142A (en) | 2015-04-29 |
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