CN110497349A - A kind of upper cover dismounting device of transformer - Google Patents
A kind of upper cover dismounting device of transformer Download PDFInfo
- Publication number
- CN110497349A CN110497349A CN201910604831.2A CN201910604831A CN110497349A CN 110497349 A CN110497349 A CN 110497349A CN 201910604831 A CN201910604831 A CN 201910604831A CN 110497349 A CN110497349 A CN 110497349A
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- CN
- China
- Prior art keywords
- upper cover
- hole
- lifting
- transformer
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 244000309464 bull Species 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of upper cover dismounting devices of transformer, comprising: shift mechanism, column group, clamps holder assembly, positioning sleeve component and tooling base at tooling upper cover；The both ends that the tooling upper cover and tooling base are separately fixed at column group form the support of the upper cover dismounting device；The clamping holder assembly is fixed in column group by positioning sleeve component and is located under shift mechanism, for clamping transformer；Described shift mechanism one end is lifting rod, and the other end is lifting screw assembly, and lifting rod is connected with lifting screw assembly by screw rod；After the shift mechanism is stretched out from both ends in the through-hole that tooling upper cover center is arranged, top is connected with lifting rod, bottom is connected with lifting screw assembly, wherein, lifting rod is for applying lifting power, lifting screw assembly drives the rotation of screw rod to rise for connecting transformer upper cover, by lifting rod, until taking the lifting of transformer upper cover out of transformer.
Description
Technical field
The present invention relates to aircraft equipment technical fields, and in particular to a kind of upper cover dismounting device of transformer.
Background technique
When the transformer of aircraft equipment technical field is repaired, it is necessary first to its upper cover of unloading, it could be to circle after unloading upper cover
The coil of column enclosure interior is checked and is repaired.Since transformer upper cover is to be embedded in the inside of its cylindrical shell end face, because
This unloading upper cover is relatively difficult, and at present also without preferable transformer upper cover extraction tool.
Summary of the invention
It, being capable of reliablely and stablely unloading transformation in view of this, the present invention provides a kind of upper cover dismounting device of transformer
Device upper cover.
The technical solution of the present invention is as follows:
A kind of upper cover dismounting device of transformer, comprising: shift mechanism, column group, clamps holder assembly, is fixed tooling upper cover
Position set component and tooling base；The both ends that the tooling upper cover and tooling base are separately fixed at column group form the upper cover
The support of dismounting device；The clamping holder assembly is fixed in column group by positioning sleeve component and is located under shift mechanism,
For clamping transformer；Described shift mechanism one end is lifting rod, and the other end is lifting screw assembly, lifting rod and lifting spiral shell
Screw assembly is connected by screw rod；The shift mechanism from the through-hole that tooling upper cover center is arranged both ends stretch out after, top with mention
Pull rod is connected, and bottom is connected with lifting screw assembly, wherein lifting rod is for applying lifting power, and lifting screw assembly is for connecting
Transformer upper cover is connect, drives the rotation of screw rod to rise by lifting rod, until taking the lifting of transformer upper cover out of transformer.
As a preferred embodiment, the lifting rod is bull stick, and the lifting screw assembly includes lifting screw, lifting spiral shell
Mounting seat and lifting screw mounting base upper cover are followed closely, lifting screw mounting seat is that the open at one end and other end is machined with via hole
Tube-in-tube structure, inner bottom surface center opens up tapped through hole A, and lifting screw mounting base upper cover center opens up tapped through hole C, mentions
After drawing screw mounting base upper cover and lifting screw mounting seat fixed, tapped through hole A and tapped through hole C are on same axis
And the aperture of tapped through hole C is greater than tapped through hole A；Screw rod is multi-diameter shaft, and external screw thread, the upper end diameter and screw thread are arranged thereon
The aperture of through-hole C is consistent, and lower end diameter is consistent with the aperture of tapped through hole A, and the lower end of screw rod sequentially passes through lifting screw installation
After the tapped through hole A on tapped through hole C and lifting screw mounting seat on seat on lid, end and hex nut screw thread connect
Connect, the step surface of screw rod contradicts on the inner bottom surface of lifting screw mounting seat, and bull stick is installed in screw rod upper end, bull stick for pair
Screw rod applies rotating torque, the radially mounted split pin in the lower end of screw rod, for carrying out axial limiting to hex nut；It is described
It lifts on the inner bottom surface of screw mounting seat and lifts in screw mounting base and open up two be uniformly distributed circumferentially respectively on lid
The above through-hole A and two or more through-hole B, through-hole A and through-hole B are corresponded, and the one end for lifting screw is equipped with the shaft shoulder and the other end
Equipped with external screw thread, the through-hole A of lifting screw mounting seat and the through-hole B of lifting screw mounting base upper cover are sequentially passed through, it is made
Through-hole B is stretched out in one end end equipped with the shaft shoulder and the shaft shoulder is limited in lifting screw mounting seat and lifting screw mounting base upper cover
Between cavity in, be equipped with externally threaded one end for being threadedly coupled with the upper cover of transformer.
As a preferred embodiment, radial through-hole A, the diameter of the bull stick and the screw rod upper end is arranged in the screw rod upper end
It is slidably matched to through-hole A.
As a preferred embodiment, boss is arranged in the bull stick both ends, for preventing the bull stick from the screw rod upper end
Radial through-hole A slide abjection.
As a preferred embodiment, the holder assembly that clamps includes the clamping that more than two structures are identical but internal diameter is different
Seat, for clamping the transformer of different model, is successively sleeved between different clamping seats by internal diameter vertical from the bottom up from small to large
In column group.
As a preferred embodiment, the positioning sleeve component includes more than two positioning sleeves, is clamped respectively with two or more
Seat corresponds, for different clamping seats positioning.
As a preferred embodiment, the column group includes three columns being uniformly distributed on the same circumference, Mei Geli
Column both ends are threadedly coupled with the tooling upper cover and tooling base respectively.
As a preferred embodiment, each clamping seats include two clamp clips, the structure snd size of two clamp clips
All the same and be semi-circular shape, the both ends of each clamp clip are respectively set radial auricle and tangential auricle, on radial auricle
The radial through-hole C for stretching out direction perpendicular to radial auricle is opened up, opens up axially extending bore, two clamp clip phases on tangential auricle
Circular ring shape is formed to setting, is set on a column after two tangential auricle is overlapping, two radial auricle is set relatively
It postpones and is fixedly clamped by pinching screw.
As a preferred embodiment, the upper cover dismounting device further includes circlip for shaft, the circlip for shaft
It is set on the column where the axially extending bore on the tangential auricle of top layer's clamping seats and the upper surface with top layer clamping seats
It contradicts, for limiting top layer's clamping seats axial float.
As a preferred embodiment, the tooling upper cover is connect with each the upper end of the column by acorn nut.
The utility model has the advantages that
(1) present invention can overcome the problems, such as that transformer upper cover be inlaids in the shell bad unloading, can reliablely and stablely take
Unload transformer upper cover.
(2) present invention installation and it is convenient for disassembly and assembly, installation and use process in transformer will not be caused to damage.
Detailed description of the invention
Fig. 1 is the main view of transformer upper cover dismounting device of the present invention.
Fig. 2 is the top view of transformer upper cover dismounting device of the present invention.
Fig. 3 is the main view of shift mechanism of the present invention.
Fig. 4 is the top view of shift mechanism of the present invention.
Fig. 5 is the structural schematic diagram of clamping seats in the present invention.
Wherein, 1- shift mechanism, 2- tooling upper cover, 3- column, 4- clamping holder assembly, 5- positioning sleeve A, 6- tooling base,
7- positioning sleeve B, 8- circlip for shaft, 9- acorn nut, 10- bull stick, 11- screw rod, 12- lifting screw, 13- pan head screw,
14- split pin, 15- hex nut, 16- lift screw mounting seat, and 17- lifts screw mounting base upper cover
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
A kind of upper cover dismounting device of transformer is present embodiments provided, it being capable of reliablely and stablely unloading transformer upper cover.
As illustrated in fig. 1 and 2, which includes shift mechanism 1, tooling upper cover 2, column group, clamps holder assembly
4, positioning sleeve component and tooling base 6；Tooling upper cover 2 and tooling base 6 are Circular plate structure, the center processing of tooling upper cover 2
The both ends that one tapped through hole, tooling upper cover 2 and tooling base 6 are separately fixed at column group form the branch of the upper cover dismounting device
Seat, 1 one end of shift mechanism are lifting rod, and the other end is lifting screw assembly, and lifting rod and lifting screw assembly pass through screw rod 11
Connection, specifically: screw rod 11 is external thread rod, is threadedly coupled with the tapped through hole at 2 center of tooling upper cover, 11 both ends of screw rod
After stretching out from both ends in the tapped through hole of tooling upper cover 2, top is connected with lifting rod, and bottom is connected with lifting screw assembly, mentions
Pull rod is for facilitating operator to apply lifting power, and lifting screw assembly with transformer upper cover for connecting；It is logical to clamp holder assembly 4
It crosses positioning sleeve component to be fixed in column group and be located under shift mechanism 1, for clamping transformer.
Specifically: when using above-mentioned upper cover dismounting device, transformer being placed on first and clamps in holder assembly 4 and clamps admittedly
It is fixed, secondly the upper cover of the lifting screw assembly of shift mechanism 1 and transformer is connected, finally, the lifting of rotation shift mechanism 1
Bar drives the rotation of screw rod 11 to rise, until taking the lifting of transformer upper cover out of transformer, realizes the separation of upper cover and transformer.
Further, as shown in Figures 3 and 4, bull stick 10 is used as lifting rod, and lifting screw assembly includes lifting screw 12, mentions
Screw mounting seat 16 and lifting screw mounting base upper cover 17 are drawn, lifting screw mounting seat 16 is that the open at one end and other end adds
Work has a tube-in-tube structure of via hole, and circumferentially uniformly distributed more than two threaded hole A on inner bottom surface, inner bottom surface center opens up spiral shell
Line through-hole A, lifting screw mounting base upper cover 17 are Circular plate structure, circumferentially uniformly distributed more than two and lifting spiral shell on end face
The one-to-one tapped through hole B of threaded hole A in mounting seat 16 is followed closely, center opens up tapped through hole C, and pan head screw 13 is worn
Crossing in tapped through hole B and lifting the screw mounting seat 16 in lifting screw mounting base upper cover 17 will mention after corresponding threaded hole A
Draw screw mounting base upper cover 17 and lifting screw mounting seat 16 fixed；Screw rod 11 is multi-diameter shaft, and the upper end diameter is greater than lower end
Diameter, and upper end diameter is consistent with the aperture of tapped through hole C, lower end diameter is consistent with the aperture of tapped through hole A, screw rod 11
The screw thread that lower end sequentially passes through on tapped through hole C and lifting screw mounting seat 16 in lifting screw mounting base upper cover 17 is logical
After the A of hole, end is threadedly coupled with hex nut 15, and the step surface of screw rod 11 contradicts in lifting screw mounting seat 16
On bottom surface, radial through-hole A is arranged in 11 upper end of screw rod, and for installing bull stick 10, bull stick 10 is used to apply rotatory force to screw rod 11
Square, the lower end of screw rod 11 open up radial through-hole B, are used for construction opening pin 14, and split pin 14 is used to carry out axis to hex nut 15
To limit；It lifts on the inner bottom surface of screw mounting seat 16 and lifts and opened up respectively in screw mounting base upper cover 17 circumferentially
The more than two through-hole A and two or more through-hole B, through-hole A and through-hole B of even distribution are corresponded, and one end of lifting screw 12 is set
There is the shaft shoulder and the other end is equipped with external screw thread, lifting screw 12 sequentially passes through the through-hole A and lifting spiral shell of lifting screw mounting seat 16
The through-hole B for following closely mounting base upper cover 17, being equipped with it, through-hole B is stretched out in one end end of shaft shoulder and the shaft shoulder is limited in lifting screw peace
It fills pedestal 16 and lifts in the cavity between screw mounting base upper cover 17, be equipped with externally threaded one end and be used for and transformer
Threaded hole on upper lid is threadedly coupled.
Further, bull stick 10 and the radial through-hole A of 11 upper end of screw rod are slidably matched, and boss is arranged in 10 both ends of bull stick, use
Abjection is slided out of 11 upper end of screw rod radial through-hole A in limitation bull stick 10.
Further, column group includes three columns 3 being uniformly distributed on the same circumference, each 3 both ends of column difference
Threaded hole B is opened up along axial direction, is machined on the end face of tooling upper cover 2 and three one-to-one tapped through hole D of column 3, tooling
Three are processed on the end face of pedestal 6 to be uniformly distributed circumferentially and lead to three one-to-one screw threads of through-hole in tooling upper cover 2
Hole E, the both ends of each column 3 respectively with the tapped through hole E screw thread on the tapped through hole D and tooling base 6 in tooling upper cover 2
Connection, convenient for the installation and removal of the upper cover dismounting device.
Further, clamping holder assembly 4 includes clamping seats A and clamping seats B, interior for clamping the transformer of different model
The biggish clamping seats of diameter are co-axially located on the lesser clamping seats of internal diameter；
As shown in figure 5, clamping seats A is identical with clamping seats B structure, size is different, by taking clamping seats A as an example comprising
Radial auricle and tangential auricle, radial auricle is respectively set in two identical semi-circular shape clamp clips, the both ends of each clamp clip
On open up the radial through-hole C that direction is stretched out perpendicular to radial auricle, open up axially extending bore, two clamp clips on tangential auricle
It is oppositely arranged to form circular ring shape, be set on a column 3 after two tangential auricle is overlapping, two radial auricles are opposite to be set
It postpones and is fixedly clamped by pinching screw.
Further, enabling the biggish clamping seats of internal diameter is clamping seats A, and the lesser clamping seats of internal diameter are clamping seats B, positioning sleeve
Component includes positioning sleeve A5 and positioning sleeve B7, is positioned respectively to clamping seats B and clamping seats A；Positioning sleeve A5 is circular ring shape, in
Diameter is not more than the internal diameter of clamping seats B, and three through-holes are uniformly arranged on annular surface, and positioning sleeve A5 passes through three through-hole sets thereon
It is located on column 3, the bottom surface of one end and clamping seats B contradict, and the other end and tooling base 6 contradict；Positioning sleeve B7 is that internal diameter is big
In positioning sleeve A5 but it is not more than the annulus of clamping seats A internal diameter, is uniformly arranged three through-holes on annular surface, on positioning sleeve B7
Three through-holes are set on column 3, and the top surface of one end and clamping seats B contradict, and the bottom surface of the other end and clamping seats A contradict.
Further, which further includes circlip for shaft 8, and circlip for shaft 8 is set in clamping seats A
Tangential auricle on axially extending bore where column 3 on and with the upper surface of clamping seats A contradict, for limiting clamping seats A axis
To play.
Further, tooling upper cover 2 is connect with each 3 upper end of column by acorn nut 9, and the half of 9 end of acorn nut
Spherical structure can prevent user from rotating lifting rod end scratch.
Further, 2 upper end center of tooling upper cover coaxially fixes an inner nut, for increasing screw rod 11 and tooling upper cover
Threaded connection length between 2.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of upper cover dismounting device of transformer characterized by comprising shift mechanism (1), tooling upper cover (2), column
Group clamps holder assembly (4), positioning sleeve component and tooling base (6)；The tooling upper cover (2) and tooling base (6) are fixed respectively
The support of the upper cover dismounting device is formed at the both ends of column group；The clamping holder assembly (4) is fixed by positioning sleeve component
In column group and it is located under shift mechanism (1), for clamping transformer；Described shift mechanism (1) one end is lifting rod, separately
One end is lifting screw assembly, and lifting rod and lifting screw assembly are connected by screw rod (11)；The shift mechanism (1) is from tooling
After both ends are stretched out in the through-hole of upper cover (2) center setting, top is connected with lifting rod, and bottom is connected with lifting screw assembly,
In, for lifting rod for applying lifting power, lifting screw assembly drives screw rod (11) for connecting transformer upper cover, by lifting rod
Rotation rise, until by transformer upper cover lifting take transformer out of.
2. the upper cover dismounting device of transformer as described in claim 1, which is characterized in that the lifting rod is bull stick (10),
The lifting screw assembly includes lifting screw (12), lifting screw mounting seat (16) and lifting screw mounting base upper cover
(17), lifting screw mounting seat (16) is the tube-in-tube structure that the open at one end and other end is machined with via hole, inner bottom surface center
Tapped through hole A is opened up, lifting screw mounting base upper cover (17) center opens up tapped through hole C, lifts screw mounting base upper cover (17)
With lifting screw mounting seat (16) it is fixed after, tapped through hole A and tapped through hole C are on same axis and tapped through hole C
Aperture is greater than tapped through hole A；Screw rod (11) is multi-diameter shaft, and external screw thread, the aperture of the upper end diameter and tapped through hole C are arranged thereon
Unanimously, lower end diameter is consistent with the aperture of tapped through hole A, and the lower end of screw rod (11) sequentially passes through lifting screw mounting base upper cover
(17) after the tapped through hole A on tapped through hole C and lifting screw mounting seat (16) on, end and hex nut (15) spiral shell
The step surface of line connection, screw rod (11) contradicts on the inner bottom surface of lifting screw mounting seat (16), the installation of screw rod (11) upper end
Bull stick (10), bull stick (10) are used to apply rotating torque, the radially mounted split pin in lower end of screw rod (11) to screw rod (11)
(14), for carrying out axial limiting to hex nut (15)；On the inner bottom surface of lifting screw mounting seat (16) and lift
The more than two through-hole A being uniformly distributed circumferentially and more than two through-hole B, through-hole are opened up in screw mounting base upper cover (17) respectively
A and through-hole B is corresponded, and one end of lifting screw (12) is equipped with the shaft shoulder and the other end is equipped with external screw thread, sequentially passes through lifting
The through-hole A of screw mounting seat (16) and the through-hole B of lifting screw mounting base upper cover (17), makes it be equipped with one end end of the shaft shoulder
It stretches out through-hole B and the shaft shoulder is limited in lifting screw mounting seat (16) and lifts the cavity between screw mounting base upper cover (17)
In, externally threaded one end is equipped with for being threadedly coupled with the upper cover of transformer.
3. the upper cover dismounting device of transformer as claimed in claim 2, which is characterized in that diameter is arranged in screw rod (11) upper end
To through-hole A, the bull stick (10) and the radial through-hole A of the screw rod (11) upper end are slidably matched.
4. the upper cover dismounting device of transformer as claimed in claim 3, which is characterized in that bull stick (10) the both ends setting is convex
Platform, for preventing the bull stick (10) from sliding from the radial through-hole A of the screw rod (11) upper end.
5. the upper cover dismounting device of transformer as described in claim 1, which is characterized in that the clamping holder assembly (4) includes
The clamping seats that more than two structures are identical but internal diameter is different are pressed between different clamping seats for clamping the transformer of different model
Internal diameter is successively sleeved in column group from the bottom up from small to large.
6. the upper cover dismounting device of transformer as claimed in claim 5, which is characterized in that the positioning sleeve component includes two
The above positioning sleeve is corresponded with more than two clamping seats respectively, for different clamping seats positioning.
7. such as the upper cover dismounting device of transformer described in claim 5 or 6, which is characterized in that the column group includes uniform
Distribution three columns (3) on the same circumference, each column (3) both ends respectively with the tooling upper cover (2) and tooling base
(6) it is threadedly coupled.
8. the upper cover dismounting device of transformer as claimed in claim 7, which is characterized in that each clamping seats include two
The structure snd size of clamp clip, two clamp clips are all the same and are semi-circular shape, and diameter is respectively set in the both ends of each clamp clip
To auricle and tangential auricle, the radial through-hole C that direction is stretched out perpendicular to radial auricle, tangential auricle are opened up on radial auricle
On open up axially extending bore, two clamp clips are oppositely arranged to form circular ring shape, be set in after two tangential auricle is overlapping one it is vertical
On column (3), two radial auricle is fixedly clamped after being oppositely arranged by pinching screw.
9. the upper cover dismounting device of transformer as claimed in claim 7, which is characterized in that the upper cover dismounting device further includes
Circlip for shaft (8), the circlip for shaft (8) are set in the axially extending bore institute on the tangential auricle of top layer's clamping seats
Column (3) on and contradict with the upper surface of top layer clamping seats, for limiting top layer's clamping seats axial float.
10. the upper cover dismounting device of transformer as claimed in claim 7, which is characterized in that the tooling upper cover (2) and each
Column (3) upper end is connected by acorn nut (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604831.2A CN110497349A (en) | 2019-07-05 | 2019-07-05 | A kind of upper cover dismounting device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604831.2A CN110497349A (en) | 2019-07-05 | 2019-07-05 | A kind of upper cover dismounting device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110497349A true CN110497349A (en) | 2019-11-26 |
Family
ID=68586089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910604831.2A Pending CN110497349A (en) | 2019-07-05 | 2019-07-05 | A kind of upper cover dismounting device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110497349A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6463643B1 (en) * | 1999-09-24 | 2002-10-15 | Berstorff Gmbh | Apparatus for withdrawing a screw from the barrel of a screw extruder |
| CN201030538Y (en) * | 2007-05-21 | 2008-03-05 | 宝山钢铁股份有限公司 | Bearing removing device |
| CN201552544U (en) * | 2009-12-15 | 2010-08-18 | 武汉钢铁(集团)公司 | Pick-up tool used for replacing descaling injection valve |
| CN102699868A (en) * | 2012-07-03 | 2012-10-03 | 张家港天达特种刀具有限公司 | Common screw Rama |
| CN202780994U (en) * | 2012-07-31 | 2013-03-13 | 宝山钢铁股份有限公司 | Valve bush disassembling and assembling tool for two way cartridge valve |
| CN204160422U (en) * | 2014-09-22 | 2015-02-18 | 安徽华菱汽车有限公司 | A kind of valve oil seal disassembling fixture |
| CN210939029U (en) * | 2019-07-05 | 2020-07-07 | 大连长丰实业总公司 | Upper cover taking and unloading device of transformer |
-
2019
- 2019-07-05 CN CN201910604831.2A patent/CN110497349A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6463643B1 (en) * | 1999-09-24 | 2002-10-15 | Berstorff Gmbh | Apparatus for withdrawing a screw from the barrel of a screw extruder |
| CN201030538Y (en) * | 2007-05-21 | 2008-03-05 | 宝山钢铁股份有限公司 | Bearing removing device |
| CN201552544U (en) * | 2009-12-15 | 2010-08-18 | 武汉钢铁(集团)公司 | Pick-up tool used for replacing descaling injection valve |
| CN102699868A (en) * | 2012-07-03 | 2012-10-03 | 张家港天达特种刀具有限公司 | Common screw Rama |
| CN202780994U (en) * | 2012-07-31 | 2013-03-13 | 宝山钢铁股份有限公司 | Valve bush disassembling and assembling tool for two way cartridge valve |
| CN204160422U (en) * | 2014-09-22 | 2015-02-18 | 安徽华菱汽车有限公司 | A kind of valve oil seal disassembling fixture |
| CN210939029U (en) * | 2019-07-05 | 2020-07-07 | 大连长丰实业总公司 | Upper cover taking and unloading device of transformer |
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