CN106695670A - Inner-clamping type three-claw puller - Google Patents
Inner-clamping type three-claw puller Download PDFInfo
- Publication number
- CN106695670A CN106695670A CN201611222267.0A CN201611222267A CN106695670A CN 106695670 A CN106695670 A CN 106695670A CN 201611222267 A CN201611222267 A CN 201611222267A CN 106695670 A CN106695670 A CN 106695670A
- Authority
- CN
- China
- Prior art keywords
- pawl arm
- horse
- locating rod
- blocking type
- inner blocking
- 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
-
- 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)
- Clamps And Clips (AREA)
Abstract
The invention provides an inner-clamping type three-claw puller. The inner-clamping type three-claw puller comprises a puller body, claw arms and a lead screw. A positioning rod is arranged on each claw arm. One end of each positioning rod is hinged to the middle of the corresponding claw arm. Each positioning rod is located on the inner side of the corresponding claw arm. By the adoption of the inner-clamping type three-claw puller, effective auxiliary clamping and positioning can be conducted from the interior of a workpiece.
Description
Technical field
The invention belongs to flight-line maintenance equipment technical field, more particularly, to a kind of inner blocking type Three-claw pull-horse.
Background technology
It is a kind of aid commonly used in repair of machine industry to draw horse, and it is used for waste and old bearing, shaft coupling, belt
The disassembling section vertically such as wheel.Draw horse in use typically by pawl arm and workpiece grab to be removed, then pass through
Leading screw rotation outwards band pawl arm movement, and then pull workpiece to be removed to leave its installation site.During drawing horse traction dynamic,
The clamp location structure that leading screw is easily caused between workpiece and pawl arm in rotary course shakes, cause workpiece with draw horse it
Between position shift or break off relations, make colliding and damaging for workpiece and other peripheral components.
The content of the invention
In view of this, the invention is directed to a kind of inner blocking type Three-claw pull-horse, can be in unloading process to workpiece
Effective clamp positioning is carried out, workpiece variation or unhook is prevented.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
A kind of inner blocking type Three-claw pull-horse, including draw horse body, be circumferentially distributed in the drawing horse external week three pawl arms, with
And leading screw, the leading screw matches by way of screw thread coordinates and is set in the drawing horse body middle part；The pawl arm bottom is provided with card
Hook, is additionally provided with locating rod on the pawl arm, be hinged in the middle part of one end of the locating rod and the pawl arm, and the locating rod is located at
The middle section of the pawl arm inner side, the pawl arm and the locating rod can be by the axis of the leading screw.
Bolt and nut pair is installed on the pawl arm and locating rod, confession is further respectively had in the pawl arm and locating rod
The through hole that the bolt and nut pair passes through, screw bolt and nut that the bolt and nut pair can be cooperated by it screws tune
Clamping dynamics between section pawl arm and locating rod.
Spring is additionally provided between the pawl arm and locating rod.
The locating rod bottom end is provided with the locating surface in outside, and the locating surface surface is provided with burr.
The drawing is evenly equipped with three projections in horse external week, and each described projection passes through the middle part of a link and the pawl arm
Connection, the two ends of the link are hinged with the projection and pawl arm respectively.
Further, the link center is provided with connecting shaft.
Further, the overlying corner portions of the projection are fixed with pad.The pad can be rubber, plastics, elastic foam
Etc. material.The pad can be fixed on the projection in the way of being screwed.
The hook side surface of the grab of the pawl arm is provided with burr.
Arc ribs is provided with the middle part of the pawl arm.
The drawing is provided with fan-shaped reinforcement face horse external week, the fan-shaped reinforcement face be connected to the adjacent projection it
Between, the fan-shaped reinforcement face is generally aligned in the same plane interior and perpendicular to the leading screw axis and sets.
Relative to prior art, the invention can outwards clamp workpiece from inside, coordinate pawl arm and its grab
Clamp is acted on so that workpiece can stably be clamped in moving process, it is to avoid the generation of phenomenon such as rocked, offset, breaking off relations, carrying
Workpiece disassembling section efficiency high and functional reliability.
Brief description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made does not constitute the improper restriction to the invention for explaining the invention.
In accompanying drawing：
Fig. 1 is a kind of overall structure diagram of embodiment of the invention.
Fig. 2 is overall structure diagrams of the Fig. 1 in other direction.
Fig. 3 is partial enlarged drawing.
Description of reference numerals：
1- draws horse body；11- projections；12- pads；13- sectors reinforcement face；2- pawl arms；21- grabs；211- hook sides；22- determines
Position bar；23- bolt and nut pairs；24- through holes；25- springs；26- locating surfaces；27- arc ribs；3- leading screws；4- links；
41- connecting shafts.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is the limitation to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The structure of the invention is as illustrated, including drawing horse body 1, being circumferentially distributed in the three of the periphery of drawing horse body 1
Individual pawl arm 2 and leading screw 3, the leading screw 3 are matched by way of screw thread coordinates and are set in the middle part of drawing horse body 1；The pawl
The bottom of arm 2 is provided with grab 21, and locating rod 22, one end of the locating rod 22 and the pawl arm 22 are additionally provided with the pawl arm 2
Middle part is hinged, and the locating rod 22 is located on the inside of the pawl arm 2, and the middle section of the pawl arm 2 and the locating rod 22 can
By the axis of the leading screw 3.The setting of the locating rod 22 can outwards clamp workpiece from inside, coordinate pawl arm 2 and its
The clamp effect of grab 21 so that workpiece can stably be clamped in moving process, it is to avoid the phenomenon such as rock, offset, breaking off relations
Generation.
Bolt and nut pair 23 is installed on the pawl arm 2 and locating rod 22, is also divided in the pawl arm 2 and locating rod 22
The through hole 24 passed through for the bolt and nut pair 23, the bolt that the bolt and nut pair 23 can be cooperated by it are not provided with
And the clamping dynamics screwed between adjustable claw arm 2 and locating rod 22 of nut.
Be additionally provided with spring 25 between the pawl arm 2 and locating rod 22, the spring 25 can to pawl arm 2 and locating rod 22 it
Between distance change play certain cushioning effect, both prevented hypotelorism therebetween from colliding, but between away from
From too far when play the effect of tightening up of auxiliary.
The bottom end of the locating rod 22 is provided with the locating surface 26 in outside, and the surface of the locating surface 26 is provided with burr,
Frictional force when locating surface 26 is clamped can be improved.
The periphery of drawing horse body 1 is evenly equipped with three projections 11, and each described projection 11 passes through a link 4 and the pawl arm
2 middle part connection, the two ends of the link 4 are hinged with the projection 11 and pawl arm 2 respectively.
Further, the center of the link 4 is provided with connecting shaft 41, the bonding strength for strengthening link 4.
Further, the overlying corner portions of the projection 11 are fixed with pad 12, can slow down firm between pawl arm 2 and projection 11
Property collision effect, it is to avoid the two infringement for causing of colliding with.The pad 12 can be the materials such as rubber, plastics, elastic foam.Institute
Stating pad 12 can be fixed on the projection 11 in the way of being screwed.
The surface of hook side 211 of the grab 21 of the pawl arm 2 is provided with burr, it is possible to increase clamp contact surface rubbing in clamp
Power is wiped, reduction is rocked.
The middle part of the pawl arm 2 is provided with arc ribs 27, it is possible to increase the overall construction intensity of the pawl arm 2, improves
Lifting performance.
The periphery of drawing horse body 1 is provided with fan-shaped reinforcement face 13, and the fan-shaped reinforcement face 13 is connected to adjacent described convex
Between block 11, the fan-shaped reinforcement face 13 is generally aligned in the same plane interior and perpendicular to the leading screw 3 axis and sets.The sector is strengthened
Face 13 can improve the support strength of whole drawing horse body 1, improve the reliability for drawing horse body.
The preferred embodiment of the invention is the foregoing is only, creation is not intended to limit the invention, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention
Protection domain within.
Claims (10)
1. a kind of inner blocking type Three-claw pull-horse, including draw horse body, be circumferentially distributed in the drawing horse external week three pawl arms and
Leading screw, the leading screw is matched by way of screw thread coordinates and is set in the drawing horse body middle part；The pawl arm bottom is provided with grab,
Locating rod is additionally provided with the pawl arm, is hinged in the middle part of one end of the locating rod and the pawl arm, the locating rod is located at institute
State on the inside of pawl arm, the middle section of the pawl arm and the locating rod can be by the axis of the leading screw.
2. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that be provided with spiral shell in the pawl arm and locating rod
Bolt pair of nut, further respectively has the through hole passed through for the bolt and nut pair, the bolt on the pawl arm and locating rod
The clamping dynamics screwed between adjustable claw arm and locating rod of the screw bolt and nut that pair of nut can be cooperated by it.
3. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that be additionally provided between the pawl arm and locating rod
Spring.
4. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that the locating rod bottom end is provided with
The locating surface in outside, the locating surface surface is provided with burr.
5. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that be evenly equipped with the drawing horse external week three it is convex
Block, each described projection is connected by a link with the middle part of the pawl arm, and the two ends of the link are convex with described respectively
Block and pawl arm are hinged.
6. inner blocking type Three-claw pull-horse according to claim 5, it is characterised in that the link center is provided with connecting shaft.
7. inner blocking type Three-claw pull-horse according to claim 5, it is characterised in that the overlying corner portions of the projection are fixed with pad
Piece.The pad can be the materials such as rubber, plastics, elastic foam.The pad can be fixed in the way of being screwed
On the projection.
8. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that the hook side surface of the grab of the pawl arm sets
There is burr.
9. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that arc reinforcement is provided with the middle part of the pawl arm
Rib.
10. inner blocking type Three-claw pull-horse according to claim 1, it is characterised in that be provided with the drawing horse external week it is fan-shaped plus
Strong face, the fan-shaped reinforcement face is connected between the adjacent projection, the fan-shaped reinforcement face be generally aligned in the same plane in simultaneously
Axis perpendicular to the leading screw is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222267.0A CN106695670A (en) | 2016-12-27 | 2016-12-27 | Inner-clamping type three-claw puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222267.0A CN106695670A (en) | 2016-12-27 | 2016-12-27 | Inner-clamping type three-claw puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106695670A true CN106695670A (en) | 2017-05-24 |
Family
ID=58903474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611222267.0A Pending CN106695670A (en) | 2016-12-27 | 2016-12-27 | Inner-clamping type three-claw puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106695670A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091803A (en) * | 2017-06-02 | 2017-08-25 | 中国航发南方工业有限公司 | Leaf decomposition device |
| CN107363826A (en) * | 2017-06-16 | 2017-11-21 | 安徽机电职业技术学院 | A kind of mechanical grabbing device |
-
2016
- 2016-12-27 CN CN201611222267.0A patent/CN106695670A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091803A (en) * | 2017-06-02 | 2017-08-25 | 中国航发南方工业有限公司 | Leaf decomposition device |
| CN107091803B (en) * | 2017-06-02 | 2019-11-12 | 中国航发南方工业有限公司 | Leaf decomposition device |
| CN107363826A (en) * | 2017-06-16 | 2017-11-21 | 安徽机电职业技术学院 | A kind of mechanical grabbing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |