CN104552142A - Detaching tool for axle box cover of bogie - Google Patents
Detaching tool for axle box cover of bogie Download PDFInfo
- Publication number
- CN104552142A CN104552142A CN201410707345.0A CN201410707345A CN104552142A CN 104552142 A CN104552142 A CN 104552142A CN 201410707345 A CN201410707345 A CN 201410707345A CN 104552142 A CN104552142 A CN 104552142A
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- box cover
- axle box
- pulling force
- case lid
- 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 invention relates to a detaching tool for an axle box cover of a bogie. The detaching tool comprises a positioning head, a thrusting device and a pulling device, wherein the positioning head is fixed on an end part of the thrusting device and is used for jacking an axle; the pulling device comprises a fixed part and one or more stretchable or retractile pulling claw mounted on the fixed part; the fixed part and the thrusting device are in meshing connection with each other, so that the reverse relative movement is realized; the pulling claw is inserted into the inner side of the axle box cover and is buckled on an inner side wall of the axle box cover when the pulling claw stretches out. According to the invention, the spindle nose of a high speed train axle is utilized to position, an inward pushing method is utilized to generate a pushing force from inside to outside, the force application is uniform, the operation is convenient and flexible, the positioning is accurate and firm, the detaching on the axle box cover of the bogie of the high speed train is convenient, the detaching quality of the axle box cover of the bogie is ensured, the axle box cover is free from deformation, the smoothness of a surface is kept, the working strength is reduced, and the working efficiency is increased.
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, belonging to rail vehicle technological equipment.
Background technology
In Highs-speed motor train unit bogie inspection and maintenance process, bogie axle case lid need be dismantled, to take turns maintenance operation it.Axle box cover is aluminum alloy materials, and its case hardness is lower, coordinates closely with parent, when carrying out overhauling and keeping in repair, because discontinuity very easily causes distortion and the damaged surfaces of axle box cover, and wastes time and energy, and working strength is large, complex process.
In order to solve the problem; be in the Chinese patent " rake for discharging axle box cover " of 200720304994.1 in the patent No.; disclose and a kind ofly can move back the mechanism of unloading axle box end cap, its object is to axle box cover for convenience detach or axle box, protection axle box and axle box cover injury-free.As shown in Figure 1, this moves back to unload takes off the side that son is arranged on axle box cover, utilize annular top cover 1 to push up and be pressed in the side of axletree, T-shaped top cover 2 is buckled in the inside edge of axle box end cap, carries out moving back when unloading operation, interacted by the head of bolt 3 and annular top cover 1, annular top cover 1 ejected, annular top cover 1 withstands on axletree side and can not move, and the reaction force by screw thread will move outside T-shaped top cover 2, and then axle box or axle box cover are ejected, realize moving back unloading functions.This structure is very simple, but T-shaped top cover 2 and annular top cover 1 all need move back unload before penetrate from the axis hole of axle box cover, size due to annular top cover 1 is fixing, and unload axle box cover to move back, the diameter of annular top cover 1 is greater than the diameter of the axis hole of axle box cover, makes it install and locates all very inconvenient.
Summary of the invention
Main purpose of the present invention is to solve the problem and not enough, and providing one to ensure, axle box cover is indeformable and keep surface smoothness, and easy to operate bogie axle case lid extracting tool.
For achieving the above object, technical scheme of the present invention is:
A kind of bogie axle case lid extracting tool, comprise 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 comprises fixed part and is arranged on the pulling force pawl of the one or more extended or withdrawal on described fixed part, be connected with a joggle between described fixed part and described augmentor and realize relative movement in the other direction, described pulling force pawl stretches to the inner side of axle box cover and is buckled in when stretching out on the madial wall of described axle box cover.
Further, described augmentor is a screw mandrel, and described fixed part is sleeved on the outside of described screw mandrel, is threaded connection between the two.
Further, an afterburning handle for rotary screw is installed in the other end of described augmentor.
Further, described fixed part comprises axis hole positioner, and described axis hole positioner is sleeved on the outside of described augmentor and is arranged in the axis hole of axle box cover, and its outside dimension is identical with the internal diameter size of axis hole.
Further, described axis hole positioner is a cylinder-like structure, it has one or more accommodating cavity, and described pulling force pawl correspondence when regaining is contained in described accommodating cavity.
Further, described fixed part also comprises a grip part, and described grip part is fixed on the side of described axis hole positioner, and described grip part and described augmentor are connected with a joggle.
Further, described puller system also comprises angular adjustment apparatus, and described pulling force pawl is connected with described angular adjustment apparatus, and described angular adjustment apparatus is regained for rotating described pulling force pawl to achieve or stretched out.
Further, described angular adjustment apparatus comprises a rotating disc and the one or more forks that arrange corresponding to described pulling force pawl, one end of described fork is provided with slotted hole, described rotating disc is provided with one or more pivot pin, described pivot pin correspondence to be inserted in described slotted hole and is slided in described slotted hole, the other end of described fork is fixedly connected with described pulling force pawl by rotating shaft, and multiple described pivot pin and rotating shaft are pressed concentric circles distribution and arranged.
Further, described rotating disc is protruding with to side for holding the Handheld Division rotating described rotating disc, and described Handheld Division and rotating disc are sleeved on the outside of described augmentor.
Further, the inside of described positioning head is provided with angular contact ball bearing.
To sum up content, a kind of bogie axle case lid extracting tool of the present invention, utilize the force side of end as reaction force of EMU axletree, by interior to thrust force method generation thrust from inside to outside, uniform force application, flexible to operation, accurate positioning is firm, the dismounting of Highs-speed motor train unit bogie axle box cover can be carried out easily, and the dismounting quality of bogie axle case lid can be ensured, ensure axle box cover indeformable and keep surface fineness, reduce working strength, improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is prior art structural representation;
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 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, accommodating cavity 17; through hole 18, container cavity 19, grip part 20, knurled portion 21, angular adjustment apparatus 22; rotating disc 23, fork 24, slotted hole 25, pin hole 26, shaft hole 27; adjust 28, knurled portion 29, rotating shaft through hole 30, over cap 31, lightening hole 32.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 2, the invention provides a kind of bogie axle case lid extracting tool, comprise positioning head 4, augmentor 5 and puller system 6.Positioning head 4 is fixed on the end of one end of augmentor 5, positioning head 4 dismantle time for holding out against the side end of axletree (not shown), reciprocal relative movement is formed by being connected with a joggle between puller system 6 and augmentor 5, and then the thrust produced from the inner side of axle box cover from inside to outside, realize the operation of dismounting axle box cover.
Wherein, as shown in Figures 2 and 3, in order to simplify overall structure, also convenient operation, augmentor 5 adopts a screw mandrel 7, and screw mandrel 7 adopts stainless steel material, to ensure integrally-built intensity, and screw mandrel 7 preferably adopts trapezoidal screw, increases force value and durable because intensity own is higher.The top end of screw mandrel 7 has a mounting head 8, mounting head 8 has a through hole 9, inserts an afterburning handle 10, afterburning handle 10 handled easily person rotary screw 7 in through hole 9.
At the bottom terminal ends of screw mandrel 7, positioning head 4 is installed, as shown in Figure 4, angular contact ball bearing 11 is installed in positioning head 4, angular contact ball bearing 11 side is provided with bearing trim ring 12, be fixedly connected with by screw thread between bearing trim ring 12 with positioning head 4, the bottom terminal ends of screw mandrel 7 has external screw thread, and the opposite side of the inherent bearing trim ring 12 of positioning head 4 has internal thread, be threaded connection between screw mandrel 7 and positioning head 4, and positioning head 4 external diameter and axletree setting circle is measure-alike.When dismantling, positioning head 4 holds out against the end at axletree, freely can find anchor point by angular contact ball bearing 11, possesses accurately location and the feature freely determining thrust point, reduces the impact of alignment error.For ensureing integrally-built intensity, positioning head 4 adopts stainless steel material equally.
As shown in Figure 2, puller system 6 comprises fixed part 13 and is arranged on the pulling force pawl 14 of the one or more extended or withdrawal on fixed part 13, pulling force pawl 14 when retracted state from axle box cover axis hole through the inner side stretching to axle box cover, be buckled in when stretching out state on the madial wall of axle box cover, be connected by screw-threaded engagement between fixed part 13 with screw mandrel 7 and realize relative movement in the other direction, fixed part 13 is when dismantling, need relatively to fix, pulling force pawl 14 oppositely mobile and then generation thrust is from inside to outside made while holding out against axletree in screw mandrel 7 rotation, 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 rotate on a vertical plane there is certain thickness platy structure, pulling force pawl 14 is fixedly connected with a rotating shaft 16, be fixed together by interference fit between pulling force pawl 14 and rotating shaft 16, also can directly integrally casting be shaping, can also be threaded connection.Pulling force pawl 14 and rotating shaft 16 form L shape, when pulling force pawl 14 90-degree rotation, pulling force pawl 14 stretches out, form state as shown in Figure 2, can being buckled on the madial wall of axle box cover, when needing the axis hole through axle box cover, pulling force pawl 14 being reversely rotated 90 degree, 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 adopts and circumferentially evenly arranges three.Separately, for ensureing integrally-built intensity, pulling force pawl 14 and rotating shaft 16 all adopt stainless steel material.
As shown in Fig. 2, Fig. 7 and Fig. 8, fixed part 13 comprises axis hole positioner 15, axis hole positioner 15 is sleeved on the outside of screw mandrel 7, when dismantling, axis hole positioner 15 is arranged in the axis hole of axle box cover, and its outside dimension is identical with the internal diameter size of axis hole, serve the effect of axial location, ensure that three pulling force pawls 14 accurate positionings is firm, and to uniform force application during extrapolation, and then ensure the dismounting quality of axle box cover.
In the present embodiment, axis hole positioner 15 adopts a cylindrical-shaped structure, and can reduce the difficulty of processing and tool assemble like this, the external diameter of cylindrical-shaped structure is identical with the internal diameter size of axis hole, axis with radial direction all have and larger contacts location area, make location accurately convenient.Have through hole 18 in the centre of axis hole positioner 15, screw mandrel 7 is fixedly connected with positioning head 4 through the through hole 18 at axis hole positioner 15 center.
Axis hole positioner 15 is circumferentially evenly provided with three accommodating cavities 17, and accommodating cavity 17 is semicircular structure, is arranged on axis hole positioner 15 side circumferentially, and pulling force pawl 14 correspondence when regaining is contained in accommodating cavity 17.Certainly, accommodating cavity 17 also only can adopt one, is arranged in axis hole positioner 15 ringwise circumferentially.Axis hole positioner 15 is also provided with and multiplely subtracts metapore 32, to alleviate the weight of whole device.
Positioning head 4 can be arranged on the outside of axis hole positioner 15 completely; the container cavity 19 of an indent also can be set at the center of axis hole positioner 15; positioning head 4 can all or part ofly be contained in container cavity 19, plays certain protective effect when not using to positioning head 4.
Axis hole positioner 15 can also adopt radial structure, and the center of radial structure is contained in the outside of screw mandrel 7, and the external diameter of radial structure is identical with the internal diameter size of axis hole.
Fixed part 13 is when dismantling, need relatively to fix, can be relatively fixed by Selection utilization axis hole positioner 15, axis hole positioner 15 is directly fixed on axle box cover by clamp or securing member etc., or by other machine tool fixed shaft hole positioner 15 part.When adopting this kind of fixed form, the inwall of the central through hole 18 of axis hole positioner 15 needs arrange the internal thread coordinated with screw mandrel 7.
In the present embodiment, conveniently operate, a grip part 20 gripped for operator's hand is fixedly connected with by screw in the side of axis hole positioner 15, grip part 20 is sleeved on the outside of screw mandrel 7, and its center has internal thread, is connected by screw-threaded engagement with between screw mandrel 7, screw mandrel 7 is being then smooth section through a section of axis hole positioner 15, the through hole 18 at axis hole positioner 15 center is also smooth hole, and is matched in clearance between screw mandrel 7, and screw mandrel 7 rotates in through hole 18.During dismounting, operator grasps grip part 20, then can realize pulling force pawl 14 relative movement laterally by rotating afterburning handle 10.Conveniently operating, the outer surface of grip part 20 is provided with knurled portion 21, the hand when gripping can being avoided to skid.
As shown in Figure 2, in the present embodiment, stretching out or being retracted through angular adjustment apparatus 22 of pulling force pawl 14 realizes, and angular adjustment apparatus 22 comprises a rotating disc 23 and three forks 24 arranging corresponding to pulling force pawl 14.As shown in Figure 9, fork 24 is Long Circle structure, its one end is provided with slotted hole 25, as shown in Figure 10, rotating disc 23 is circumferentially evenly provided with three pin holes 26, each pin hole 26 is fixedly connected with a pivot pin (not shown) by screw thread, in the slotted hole 25 that pivot pin correspondence inserts fork 24 and slip slotted hole 25 in, the other end of fork 24 is provided with shaft hole 27, the end of shaft hole 27 has internal thread, as shown in Figure 5, the end of the rotating shaft 16 that pulling force pawl 14 is fixedly connected with has external screw thread, rotating shaft 16 and shaft hole 27 are fixed together by screw thread.As shown in Figure 7 and Figure 8, axis hole positioner 15 is circumferentially evenly provided with 30, three rotating shafts 16 of three rotating shaft through holes respectively from three rotating shaft through holes 30 through being fixedly connected with fork 24.Three pivot pins and three rotating shafts 16 are all arranged by concentric circles distribution, and to ensure that three pulling force pawls 14 stretch out or regain simultaneously, and the angle of stretching out is identical, and the contact area also between axle box cover madial wall is identical, and then ensures axle box cover uniform force.Operator rotates rotating disc 23 when dismantling, three pivot pins slide respectively in three slotted holes 25, three forks 24 are driven to rotate around three shaft holes 27 respectively, and then drive three rotating shafts 16 to rotate, realize three pulling force pawl 14 rotations on a vertical plane, namely realize stretching out or regaining of three pulling force pawls 14.
As shown in figure 11, conveniently operator rotates rotating disc 23, the side of rotating disc 23 protrude one for hand grip adjustment 28, adjust 28 and rotating disc 23 be sleeved on grip part 20 outside and and grip part 20 between matched in clearance can relatively rotate, operator holds adjustment 28 i.e. rotatable rotating discs 23, and then realize stretching out or regaining of pulling force pawl 14, flexible to operation, uniform force, the dismounting quality of Highs-speed motor train unit bogie axle box cover can be ensured well, and reduce working strength, increase work efficiency.In order to further facilitate operator's operation, in the present embodiment, also in adjustment, the outer surface of 28 is also provided with knurled portion 29.
As shown in Figure 2; angular adjustment apparatus 22 integral installation is in the side of axis hole positioner 15; one over cap 31 is set in the periphery of angular adjustment apparatus 22; over cap 31 can the parts such as fork 24, pivot pin of degree of protection adjusting device 22; and make outward appearance more attractive in appearance, be fixed together by screw between over cap 31 and axis hole positioner 15.
The step utilizing this tool ejector axle box cover is described below in detail:
1, when carrying out axle box cover dismounting, operator holds adjustment 28, and the rotating disc 23 in anglec of rotation adjusting device 22, makes three pulling force pawls 14 be recovered to axis hole positioner 15 three accommodating cavities 17 circumferentially respectively.，
2, three pulling force pawls 14 and axis hole positioner 14 part are put into the axis hole of axle box cover, axis hole positioner 15 realizes 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 feature that the angular contact ball bearing 11 in positioning head 4 can be freely movable is among a small circle utilized to find anchor point, by the setting circle abutting contact of positioning head 4 with axletree end.
4, operator holds adjustment 28, rotate rotating disc 23 in the other direction, three pivot pins that rotarily drive of rotating disc 23 slide simultaneously in the slotted hole 25 of three forks 24, three forks 24 are driven to rotate around three shaft holes 27 respectively, and then drive three rotating shafts 16 to rotate, realize the 90 degree of rotations on a vertical plane of three pulling force pawls 14, namely realize stretching out of three pulling force pawls 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 the end of axletree.
6, operator holds grip part 20 and continues firmly to rotate afterburning handle 10, mobile in the other direction laterally under the effect that axis hole positioner 15 and three pulling force pawls 14 rotate at screw mandrel 7, three pulling force pawls 14 are buckled on the madial wall of axle box cover, while three pulling force pawl 14 movements laterally, produce thrust from inside to outside, axle box cover is pulled down.
7, after pulling down axle box cover, then reversely rotate rotating disc 23, three pulling force pawls 14 are retracted in three accommodating cavities 17 of axis hole positioner 15 again, deviate from from the axis hole of axle box cover, use in order to next time.
This instrument utilizes the end of EMU axletree to position, axle box cover dismounting is carried out by the interior thrust produced from inside to outside to thrust force method, not only uniform force application, flexible to operation, accurate positioning is firm, can carry out the dismounting of Highs-speed motor train unit bogie axle box cover easily, and the dismounting quality of bogie axle case lid can be ensured, ensure axle box cover indeformable and keep surface fineness, reduce working strength, improve operating efficiency.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a bogie axle case lid extracting tool, it is characterized in that: comprise 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 comprises fixed part and is arranged on the pulling force pawl of the one or more extended or withdrawal on described fixed part, be connected with a joggle between described fixed part and described augmentor and realize relative movement in the other direction, described pulling force pawl stretches to the inner side of axle box cover and is buckled in when stretching out on the madial wall of described axle box cover.
2. bogie axle case lid extracting tool according to claim 1, is characterized in that: described augmentor is a screw mandrel, and described fixed part is sleeved on the outside of described screw mandrel, is threaded connection between the two.
3. bogie axle case lid extracting tool according to claim 2, is characterized in that: install an afterburning handle for rotary screw in the other end of described augmentor.
4. bogie axle case lid extracting tool according to claim 1, it is characterized in that: described fixed part comprises axis hole positioner, described axis hole positioner is sleeved on the outside of described augmentor and is arranged in the axis hole of axle box cover, and its outside dimension is identical with the internal diameter size of axis hole.
5. bogie axle case lid extracting tool according to claim 4, is characterized in that: described axis hole positioner is a cylinder-like structure, it has one or more accommodating cavity, and described pulling force pawl correspondence when regaining is contained in described accommodating cavity.
6. bogie axle case lid extracting tool according to claim 4, is characterized in that: described fixed part also comprises a grip part, and described grip part is fixed on the side of described axis hole positioner, and described grip part and described augmentor are connected with a joggle.
7. the bogie axle case lid extracting tool according to any one of claim 1 to 6, it is characterized in that: described puller system also comprises angular adjustment apparatus, described pulling force pawl is connected with described angular adjustment apparatus, and described angular adjustment apparatus is regained for rotating described pulling force pawl to achieve or stretched out.
8. bogie axle case lid extracting tool according to claim 7, it is characterized in that: described angular adjustment apparatus comprises a rotating disc and the one or more forks that arrange corresponding to described pulling force pawl, one end of described fork is provided with slotted hole, described rotating disc is provided with one or more pivot pin, described pivot pin correspondence to be inserted in described slotted hole and is slided in described slotted hole, the other end of described fork is fixedly connected with described pulling force pawl by rotating shaft, and multiple described pivot pin and rotating shaft are pressed concentric circles distribution and arranged.
9. bogie axle case lid extracting tool according to claim 8, is characterized in that: described rotating disc is protruding with to side for holding the Handheld Division rotating described rotating disc, and described Handheld Division and rotating disc are sleeved on the outside of described augmentor.
10. bogie axle case lid extracting tool according to claim 1, is characterized in that: the inside of described positioning head is provided with 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 |
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| Publication Number | Publication Date |
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| CN104552142A true CN104552142A (en) | 2015-04-29 |
| CN104552142B CN104552142B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410707345.0A Active CN104552142B (en) | 2014-11-28 | 2014-11-28 | A kind of bogie axle case lid extracting tool |
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| CN (1) | CN104552142B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105619319A (en) * | 2015-12-22 | 2016-06-01 | 中国航天空气动力技术研究院 | Dismounting device for taper sleeve of wind-tunnel balance |
| CN106737390A (en) * | 2017-01-23 | 2017-05-31 | 中国航发沈阳发动机研究所 | A kind of casing calotte disassembling fixture |
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
| CN108581942A (en) * | 2017-12-26 | 2018-09-28 | 中国航发四川燃气涡轮研究院 | The device and decomposition method of roller bearing inner ring in a kind of decomposition annular chamber |
| CN108943500A (en) * | 2018-06-08 | 2018-12-07 | 国宏中晶（北京）科技发展有限公司 | A kind of Freezing smashing device of waste tire |
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| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619319A (en) * | 2015-12-22 | 2016-06-01 | 中国航天空气动力技术研究院 | Dismounting device for taper sleeve of wind-tunnel balance |
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| CN106737390A (en) * | 2017-01-23 | 2017-05-31 | 中国航发沈阳发动机研究所 | A kind of casing calotte disassembling fixture |
| 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 |
| CN108581942A (en) * | 2017-12-26 | 2018-09-28 | 中国航发四川燃气涡轮研究院 | The device and decomposition method of roller bearing inner ring in a kind of decomposition annular chamber |
| 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 |
| CN108943500A (en) * | 2018-06-08 | 2018-12-07 | 国宏中晶（北京）科技发展有限公司 | A kind of Freezing smashing device of waste tire |
| CN108943500B (en) * | 2018-06-08 | 2021-04-02 | 国宏中晶集团有限公司 | Freezing reducing mechanism of junked tire |
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
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| CN104552142B (en) | 2017-01-04 |
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