CN108091471A - Leg clamping device - Google Patents
Leg clamping device Download PDFInfo
- Publication number
- CN108091471A CN108091471A CN201711297604.7A CN201711297604A CN108091471A CN 108091471 A CN108091471 A CN 108091471A CN 201711297604 A CN201711297604 A CN 201711297604A CN 108091471 A CN108091471 A CN 108091471A
- Authority
- CN
- China
- Prior art keywords
- clamping piece
- sleeve
- thread spindle
- upper clamping
- leg
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
Abstract
The present invention provides a kind of leg clamping devices, lower clamping piece including upper clamping piece, below upper clamping piece, and the pull rods of multiple connection upper clamping pieces and lower clamping piece, it is fixed with that upper clamping piece is driven to move up and down to adjust the regulating device of spacing between upper clamping piece and lower clamping piece on upper clamping piece；Regulating device includes the sleeve mechanism being fixed on upper clamping piece, is threadedly coupled in sleeve mechanism with sleeve mechanism and is used for the thread spindle that sleeve mechanism is driven to move up and down.Leg clamping device provided by the invention, for regulating device for adjusting distance between upper clamping piece and lower clamping piece, regulative mode is easy, and the thread spindle of regulating device is fixed on barrel bore, is hardly damaged deformation, improves service life；Upper clamping piece will not rotate during moving up and down, and the problem of being not in abrasion core limb and be difficult to clamp core limb, after the gripping means grips core limb, core limb is unlikely to deform during standing up, and lamination will not mutual dislocation.
Description
Technical field
The invention belongs to transformer technology fields, are to be related to a kind of leg clamping device more specifically.
Background technology
Transformer Core Sheet forms core limb after the completion of stack, and core limb needs 90 ° of the overturning on roll-over table to stand up, iron
Stem not only needs to tighten the fastener that iron core carries before standing up, it is also necessary to using gripping means grips core limb, to ensure
Core limb after vertical does not occur compared with large deformation, lamination not mutual dislocation.
Chinese utility model patent discloses " a kind of for transformer iron core iron yoke clamps special tooling ", includes upper clamping
On four angles of beam, lower clamped beam and clamping screw, upper clamped beam and lower clamped beam, the hole being mutually matched, four folders are respectively provided with
Tight screw rod is respectively penetrated in the hole at four angles, is fastened by bolts, and forms frame-type structure.The clamping special tooling passes through hydraulic pressure thousand
The cooperation of jin top, clamps iron core yoke clip piece, increases iron core clamping force, prevents that lamination is shifted with respect to folder during clamper for iron core standing, in iron
Transformer noise and loss are reduced when the heart is run.The clamping special tooling adjusts upper clamped beam and lower clamped beam using clamping screw
Between spacing, the threaded portion of clamping screw is exposed outside, and screw rod is easily deformable, in addition, rotary screw may drive
Clamped beam or lower clamped beam rotate, and clamped beam is caused to wear iron core.
The content of the invention
It is an object of the invention to provide a kind of leg clamping devices, it is intended to which solution adjusts iron in the prior art
The problem of screwed part of stem spacing is exposed easily deformable outside and iron core is worn, have it is simple in structure, it is easy to use, use
The characteristics of long lifespan.
To achieve the above object, the technical solution adopted by the present invention is：A kind of leg clamping device is provided, is wrapped
The pull rod of upper clamping piece, the lower clamping piece below the upper clamping piece and multiple connection upper clamping pieces and the lower clamping piece is included,
It is characterized in that：Be fixed with to drive on the upper clamping piece upper clamping piece move up and down to adjust the upper clamping piece with it is described
The regulating device of spacing between lower clamping piece；
The regulating device includes being fixed on sleeve mechanism on the upper clamping piece, in the sleeve mechanism with it is described
Sleeve mechanism is threadedly coupled and for driving the thread spindle that the sleeve mechanism moves up and down.
Further, the regulating device further includes to limit what the thread spindle was moved compared with the sleeve mechanism
Distance and the thrust mechanism that the sleeve mechanism is driven to move up and down；The thrust mechanism is sheathed on the thread spindle and is clamped
Between the thread spindle and the sleeve mechanism inner wall.
Further, the sleeve mechanism includes the sleeve with inner cavity being fixed on upper clamping piece and is fixed on institute
State the thread bush in sleeve；The outer circumferential surface of the thread bush is equipped with the strip fluting axially extended；It is solid on the sleeve
Surely there are at least two second bolts of axially spaced distribution；The afterbody of second bolt is located in strip fluting；
The lower end of the thread bush is fixed with the first bottom plate contacted with leg, the first bottom plate position
Below the sleeve, the diameter of first bottom plate is more than the internal diameter of the barrel bore.
Further, the middle part of the thread spindle is equipped with the shaft shoulder, the position being located on the thread spindle below the shaft shoulder
With external screw thread, and the position is located in the thread bush, and the sleeve is stretched out in the upper end of thread spindle；
The lower face of the shaft shoulder is contacted with the upper surface of the thread bush；The thrust mechanism is connected in the shaft shoulder
Between the roof of upper surface and the barrel bore.
Further, the upper end of the thread spindle is connected with the first bolt that the thread spindle is driven to rotate；It is described
The first gasket is fixed between the upper surface of first bolt and the thread spindle.
Further, the position of the stretching sleeve of the thread spindle is arranged with axle sleeve；The axle sleeve and the sleeve
Between be fixed with the second gasket.
Further, the thrust mechanism is thrust bearing.
Further, it is installed on the lower clamping piece immediately below first bottom plate and for being connect with transformer core
The second tactile bottom plate.
Further, on the upper clamping piece upper groove is respectively equipped in the both sides of the sleeve；It is corresponding on the lower clamping piece
Lower groove is equipped at position below the upper groove.
Further, the both ends of the pull rod are respectively provided with the hook with upper groove and lower groove mounting.
The advantageous effect of leg clamping device provided by the invention is：Compared with prior art, it is of the invention
Leg clamping device, for regulating device for adjusting distance between upper clamping piece and lower clamping piece, regulative mode is easy, adjusts
The thread spindle of regulating device is fixed on sleeve mechanism inner cavity, is hardly damaged deformation, improves service life；Upper clamping piece moved up and down
It will not be rotated in journey, be not in abrasion core limb and the problem of be difficult to clamp core limb, after the gripping means grips core limb,
Core limb is unlikely to deform during standing up, and lamination will not mutual dislocation.
Description of the drawings
Fig. 1 is the structure diagram of leg clamping device provided in an embodiment of the present invention；
Fig. 2 is the connection diagram of leg clamping device provided in an embodiment of the present invention and core limb；
Fig. 3 is the connection diagram of the sleeve and upper clamping piece in Fig. 1；
Fig. 4 is the structure diagram of the thread bush in Fig. 1；
Fig. 5 is the structure diagram of the thread spindle in Fig. 1；
Fig. 6 is the structure diagram of the lower clamping piece in Fig. 1；
Fig. 7 is the structure diagram of the pull rod in Fig. 1.
In figure：10th, upper clamping piece；11st, upper groove；20th, lower clamping piece；21st, lower groove；22nd, the second bottom plate；30th, pull rod；40、
Sleeve；41st, the second bolt；50th, thread bush；51st, the first bottom plate；52nd, strip is slotted；60th, thread spindle；61st, axle sleeve；62nd,
One bolt；63rd, the shaft shoulder；70th, core limb；80th, thrust bearing；91st, the first gasket；92nd, the second gasket.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
The orientation of the instructions such as " on ", " under " or position relationship are based on orientation shown in the drawings it is to be appreciated that term
Or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or imply signified device or element
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
It please refers to Fig.1 and Fig. 2, now leg clamping device provided by the invention is illustrated.Transformer fe
Stem clamping device, the lower clamping piece 20 and multiple connection upper clamping pieces 10 including upper clamping piece 10, positioned at 10 lower section of upper clamping piece are under
The pull rod 30 of folder 20 is fixed with that upper clamping piece 10 is driven to move up and down to adjust upper clamping piece 10 and lower clamping piece on upper clamping piece 10
The regulating device of spacing between 20；Regulating device includes being fixed on sleeve mechanism on upper clamping piece 10, in sleeve mechanism with
Sleeve mechanism is threadedly coupled and for driving the thread spindle 60 that sleeve mechanism moves up and down.
The use process of leg clamping device provided by the invention is as follows：Transformer Core Sheet is completed in stack
Core limb 70 is formed afterwards, and before core limb 70 stands up, upper clamping piece 10 is placed on to the top of core limb 70, uses two length
Suitable pull rod 30 is docked with upper clamping piece 10, and lower clamping piece 20 is then put in the lower end of core limb 70, and is docked with pull rod 30, is twisted
The thread spindle 60 of dynamic regulating device drives sleeve mechanism to move up, and then upper clamping piece 10 is driven to move up, upper clamping piece 10 with
Spacing between lower clamping piece 20 becomes larger, and finally tenses upper clamping piece 10 and lower clamping piece 20 using two pull rods 30, reaches clamping iron core
The purpose of column 70.
Leg clamping device provided by the invention, compared with prior art, regulating device are used to adjust folder
Distance between part 10 and lower clamping piece 20, regulative mode is easy, and the thread spindle 60 of regulating device is fixed in sleeve mechanism, not rapid wear
Bad deformation, improves service life；Upper clamping piece 10 will not rotate during moving up and down, and be not in abrasion core limb 70 and hardly possible
The problem of to clamp core limb 70, after the gripping means grips core limb 70, core limb 70 is unlikely to deform during standing up, is wrong
Position.
Further, referring to Fig. 1, regulating device, which further includes, is sheathed on thread spindle 60 and is connected in thread spindle 60 and set
Thrust mechanism between cylinder mechanism inner wall, thrust mechanism are used to limiting distance and the drive that thread spindle 60 is moved compared with sleeve mechanism
Sleeve mechanism moves up and down.
Further, Fig. 3 and Fig. 4 are referred to, what sleeve mechanism included being fixed on 10 centre of upper clamping piece has inner cavity
Sleeve 40 and the thread bush 50 that is fixed in sleeve 40.At least two of axially spaced distribution are fixed on sleeve 40
Second bolt 41.The outer circumferential surface of thread bush 50 is equipped with the strip fluting 52 axially extended.The afterbody position of second bolt 41
In in strip fluting 52, using 41 branch sleeve 40 of the second bolt and thread bush 50, limiting sleeve 40 will not be compared with spiral shell
Line set 50 rotates.
Further, referring to Fig. 4, the lower end of thread bush 50 is fixed with contacted with leg 70 first
Bottom plate 51, the first bottom plate 51 are located at 40 lower section of sleeve, and the diameter of the first bottom plate 51 is more than the internal diameter of 40 inner cavity of sleeve so that first
Bottom plate 51, which is driven, to be moved upwardly without through sleeve 40, and the first bottom plate 51 can also apply upwards thrust to upper clamping piece 10, make
Upper clamping piece 10 moves up.
Further, referring to Fig. 5, the middle part of thread spindle 60 have one at the shaft shoulder 63, thread spindle 60 in the shaft shoulder
The position of 63 lower sections is located at the externally threaded position in thread bush 50 with external screw thread.The lower face of the shaft shoulder 63 and spiral shell
The upper surface contact of line set 50, the upper surface of the shaft shoulder 63 are contacted with the lower face of thrust mechanism, i.e., the shaft shoulder 63 is stuck in thrust mechanism
Between thread bush 50 so that during thread spindle 60 is rotated down compared with thread bush 50, due to thread spindle 60 and thread bush
50 thread fittings, the rotation of thread spindle 60 can drive thread bush 50 to move down, and then with moving sleeve 40 and upper clamping piece 10 to moving down
It is dynamic.
Specifically, the upper end of thread spindle 60 is pierced by sleeve 40, and the position of the stretching sleeve 40 of thread spindle 60 is arranged with axle sleeve
61, for coating thread spindle 60, avoid thread spindle 60 exposed outside.Further, is fixed between axle sleeve 61 and sleeve 40
Two gaskets 92, for sleeve 40 to be avoided directly with 61 rigid contact of axle sleeve, to buffer pressure therebetween.
Specifically, the upper end of thread spindle 60 is fixed with the first bolt 62 that thread spindle 60 is driven to rotate, and turns first
Bolt 62 can rotate thread spindle 60, simple and convenient.The head of first bolt 62 and thread spindle 60 upper surface (and
The upper surface of axle sleeve 61) between be fixed with the first gasket 91, for avoiding the first bolt 62 and 61 rigid contact of axle sleeve, buffering two
Pressure between person.
Further, please refer to Fig.1 and Fig. 2, thrust mechanism are thrust bearing 80, thrust bearing 80 is set in thread spindle 60
On, and the lower face of thrust bearing 80 is contacted with the upper surface of the shaft shoulder 63, upper surface and 40 inner cavity of sleeve of thrust bearing 80
Roof contacts, i.e., thrust bearing 80 is connected between the roof of 40 inner cavity of upper surface and sleeve of the shaft shoulder 63, further, since the shaft shoulder
63 are stuck between thrust bearing 80 and thread bush 50 so that during thread spindle 60 is rotated up compared with thread bush 50, screw thread
The rotation of axis 60 can drive thrust bearing 80 to move up, and final band moving sleeve 40 and upper clamping piece 10 move up.
Further, referring to Fig. 3, being axially and symmetrically equipped with one group along sleeve 40 in the both sides of sleeve 40 on upper clamping piece 10
Upper groove 11, every group of upper groove 11 are equipped at least two at equal intervals along the length direction of upper clamping piece 10.Further, figure is referred to
6, lower groove 21, upper groove 11 and lower groove 21 are equipped at the position corresponded on lower clamping piece 20 immediately below each upper groove 11
It corresponds.
Further, referring to Fig. 7, there are two pull rod 30 sets, the both ends of each pull rod 30 are respectively provided with hook, two extensions
Hook is hooked in upper groove 11 and the lower groove 21 immediately below the upper groove 11 respectively.
Further, referring to Fig. 6, being fixed with second at the position corresponded on lower clamping piece 20 immediately below the first bottom plate 51
Bottom plate 22, the second bottom plate 22 is for the lower end in contact and compression with core limb 70.When core limb 70 stands up, the first bottom plate 51 and
Two bottom plates 22 compress core limb 70 respectively, it are avoided to deform, transposition.
The specifically used process of leg clamping device provided by the invention is as follows：
Gap Transformer Core Sheet forms core limb 70 after the completion of stack, before core limb 70 stands up, by upper clamping piece 10
It is placed on the lamination of the top of core limb 70, is hung in using the pull rod 30 of two suitable lengths on upper clamping piece 10,
Then lower clamping piece 20 is put in the lower end of core limb 70, the second bottom plate 22 is adjacent to core limb 70, and pull rod 30 is hung on lower clamping piece 20.
The first bolt of turn 62 makes thread spindle 60 be screwed out upwards compared with thread bush 50, since thread spindle 60 is limited, 60 meeting of thread spindle
Thread bush 50 is driven to move up, and then is moved up with moving sleeve 40, and then upper clamping piece 10 is driven to move up, upper clamping piece 10
Spacing between lower clamping piece 20 becomes larger, and is finally hooked on respectively in upper groove 11 and lower groove 21 using two pull rods 30, on
Folder 10 is moved with lower clamping piece 20 to the direction of core limb 70 respectively, to clamp core limb 70.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. leg clamping device, lower clamping piece and multiple connections including upper clamping piece, below the upper clamping piece
The pull rod of the upper clamping piece and the lower clamping piece, it is characterised in that：It is fixed with to drive the upper clamping piece on the upper clamping piece
Move up and down to adjust the regulating device of spacing between the upper clamping piece and the lower clamping piece；
The regulating device includes being fixed on sleeve mechanism on the upper clamping piece, in the sleeve mechanism with the sleeve
Mechanism is threadedly coupled and for driving the thread spindle that the sleeve mechanism moves up and down.
2. leg clamping device as described in claim 1, it is characterised in that：The regulating device, which further includes, to be used for
Limit the distance that the thread spindle is moved compared with the sleeve mechanism and the thrust machine that the sleeve mechanism is driven to move up and down
Structure；The thrust mechanism is sheathed on the thread spindle and is connected in the thread spindle between the sleeve mechanism inner wall.
3. leg clamping device as claimed in claim 1 or 2, it is characterised in that：The sleeve mechanism includes solid
Due to the sleeve with inner cavity on the upper clamping piece and the thread bush being fixed in the sleeve；Outside the thread bush
Circumferential surface is equipped with the strip fluting axially extended；At least two second of axially spaced distribution are fixed on the sleeve
Bolt；The afterbody of second bolt is located in strip fluting；
The lower end of the thread bush is fixed with the first bottom plate contacted with leg, and first bottom plate is located at institute
It states below sleeve, the diameter of first bottom plate is more than the internal diameter of the barrel bore.
4. leg clamping device as claimed in claim 3, it is characterised in that：The middle part of the thread spindle is set
There is the shaft shoulder, the position below the shaft shoulder is located on the thread spindle with external screw thread, and with the externally threaded position positioned at described
In thread bush, the sleeve is stretched out in the upper end of the thread spindle；
The lower face of the shaft shoulder is contacted with the upper surface of the thread bush；The thrust mechanism is connected in the upper end of the shaft shoulder
Between the roof of face and the barrel bore.
5. leg clamping device as claimed in claim 3, it is characterised in that：The upper end of the thread spindle is connected with
For driving the first bolt that the thread spindle rotates；Is fixed between first bolt and the upper surface of the thread spindle
One gasket.
6. leg clamping device as claimed in claim 3, it is characterised in that：The stretching set of the thread spindle
The position of cylinder is arranged with axle sleeve；The second gasket is fixed between the axle sleeve and the sleeve.
7. leg clamping device as claimed in claim 3, it is characterised in that：The thrust mechanism is thrust axis
It holds.
8. leg clamping device as claimed in claim 3, it is characterised in that：It is installed with and is located on the lower clamping piece
The second bottom plate immediately below first bottom plate and for being contacted with transformer core.
9. leg clamping device as claimed in claim 3, it is characterised in that：In the sleeve on the upper clamping piece
Both sides be respectively equipped with upper groove；Correspond on the lower clamping piece and lower groove is equipped at the position below the upper groove.
10. leg clamping device as claimed in claim 9, it is characterised in that：The both ends of the pull rod are set respectively
It is useful for the hook with upper groove and lower groove mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297604.7A CN108091471A (en) | 2017-12-08 | 2017-12-08 | Leg clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297604.7A CN108091471A (en) | 2017-12-08 | 2017-12-08 | Leg clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108091471A true CN108091471A (en) | 2018-05-29 |
Family
ID=62174071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711297604.7A Pending CN108091471A (en) | 2017-12-08 | 2017-12-08 | Leg clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108091471A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111524698A (en) * | 2020-05-06 | 2020-08-11 | 无锡普天铁心股份有限公司 | Overturning method and overturning device capable of inhibiting deformation of transformer core |
-
2017
- 2017-12-08 CN CN201711297604.7A patent/CN108091471A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111524698A (en) * | 2020-05-06 | 2020-08-11 | 无锡普天铁心股份有限公司 | Overturning method and overturning device capable of inhibiting deformation of transformer core |
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