CN106976038A - A kind of large diameter thin wall bushing extracting apparatus - Google Patents
A kind of large diameter thin wall bushing extracting apparatus Download PDFInfo
- Publication number
- CN106976038A CN106976038A CN201710236011.3A CN201710236011A CN106976038A CN 106976038 A CN106976038 A CN 106976038A CN 201710236011 A CN201710236011 A CN 201710236011A CN 106976038 A CN106976038 A CN 106976038A
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- Prior art keywords
- push rod
- dial
- extracting apparatus
- large diameter
- thin wall
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- 210000000078 claw Anatomy 0.000 claims description 40
- 230000007306 turnover Effects 0.000 claims 1
- 208000002925 dental caries Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 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
- 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
Abstract
A kind of large diameter thin wall bushing extracting apparatus, including refer to the subtended angle adjustment mechanism enclosed into being used to hold out against the cleft hand of bushing inwall, the dial-out driver for granting the cleft hand lifting power and grab finger subtended angle for adjusting the cleft hand by grabbing；The finger of grabbing of the cleft hand has more than 6, it is circumferentially disposed, grabbing fingers are flexible, its front end is turned up, and forms curved flanges, and the flange has the curved end as force side, more than the 1/3 of circumference circle where the curved flanges total length of grabbing fingers accounts for it, the extracting apparatus also includes structure inner chamber size fit where guide cylinder, the guide cylinder and the thin-wall bush, the guide cylinder being arranged on the dial-out driver coaxially.Smoothly the bushing can be extracted using extracting apparatus of the present invention, any damage is not caused.
Description
Technical field
The present invention relates to a kind of large diameter thin wall bushing extracting apparatus.
Background technology
Generally when decomposing aircarrier aircraft Pneumatic component, it is necessary to which the large diameter thin wall of Pneumatic component flow inner walls is served as a contrast
Set is extracted.
At present, the instrument of use is two pawls or three-jaw extractor, and its structure is：Constituted including grabbing finger by two or three
Cleft hand, transfer to driver and subtended angle adjustment mechanism, the cleft hand is arranged on the dial-out driver, and the subtended angle adjusts machine
Structure is used to adjust the subtended angle that the cleft hand grabs finger, cleft hand is held out against the inwall in the bushing, rotates the dial-out driver, applies
Power is lifted with the cleft hand, bushing is transferred to.
But, during extracting large diameter thin wall bushing using above-mentioned instrument, there are the following problems：Above-mentioned instrument is made
During for large diameter thin wall bushing, due to the active area very little on large diameter thin wall bushing, and the instrument does not possess guiding
Function, easily damages bushing during large diameter thin wall bushing is extracted.
The content of the invention
The goal of the invention of the present invention is to provide a kind of large diameter thin wall bushing extracting apparatus, can be put down using the extracting apparatus
Quietly the bushing is extracted, any damage is not caused.
The goal of the invention of the present invention is achieved by the following technical programs：A kind of large diameter thin wall bushing extracting apparatus,
Including by grab refer to enclose into be used to holding out against bushing inwall cleft hand, for grant the cleft hand lift power dial-out driver and
The subtended angle adjustment mechanism of finger subtended angle is grabbed for adjusting the cleft hand；
Characterized in that, the finger of grabbing of the cleft hand has more than 6, circumferentially disposed, grabbing fingers are flexible, its front end
Turn up, form curved flanges, the flange has the curved end as force side, and the curved flanges total length of grabbing fingers accounts for it
More than the 1/3 of place circumference circle, the extracting apparatus also includes guide cylinder, and the guide cylinder where the thin-wall bush with tying
Structure inner chamber size fit, the guide cylinder coaxially be arranged on it is described dial-out driver on.
It is used as the preferred embodiment for the present invention：
There is the cavity of axial direction, the cavity is grabbed finger inner side with the cleft hand and connected in the middle part of the dial-out driver；
The subtended angle adjustment mechanism includes lifting rod and top, and the lifting rod is arranged on the cavity of the dial-out driver
Interior, two ends pass the cavity, and front end is connected with the top between grabbing fingers, and the top is carried by the lifting rod
When drawing and moving backward, strut the cleft hand grabs finger.
It is used as a kind of optional embodiment of the lifting rod：
The lifting rod includes push rod and push rod lock, and the push rod has external screw thread, the push rod lock screw thread
It is sleeved on the push rod, mounting means of the lifting rod in the dial-out driver makes rotating the push rod or top
During rod lock device, the upper and lower motion of the push rod.
It is used as optional mounting means one of the lifting rod in the dial-out driver：
The push rod lock is fixed on the dial-out driver.
It is used as optional mounting means two of the lifting rod in the dial-out driver：
The push rod lock is to be provided with and the push rod in the dial-out driver, the cavity of the push rod lock
The internal thread of adaptation.
The top gradually expands and convex more than circumference internal diameter where grabbing fingers at corresponding grabbing fingers for external diameter
The arcwall face gone out, the arcwall face is the complete curved surface rounded.
It is used as optional mounting means three of the lifting rod in the dial-out driver：
The push rod lock is arranged on the push rod rear end, and on the outside of the dial-out driver, external diameter is more than described
The internal diameter of driver cavity is transferred to, being provided between the push rod and the dial-out driver can only be in institute for limiting the push rod
State the fit structure transferred to and be axially moved in driver；
Many grabbing fingers are divided into two groups, symmetrically located at the both sides of circumference where it, grab near one another between referring to group,
Two groups grab finger between form vacancy so that two groups of grabbing fingers are arranged in two rows；
The top gradually expands and more than where grabbing fingers in circumference accordingly often forming external diameter at row's grabbing fingers
Footpath and between the arcwall face protruded, two sections of arcwall faces be corresponding to vacancy between two row's grabbing fingers breach.
Mounting means three (forms the axial direction of one end open mainly for the situation on bushing radially across an axle on bushing
Groove, axle position is in the axial groove, during bushing axially outward movement, can be separated with axle), the structure of upper breach is come directly towards in the present invention
Refer to the design for being divided into two rows with grabbing, and push rod setting relative to this motion mode that dial-out driver can only be axially moved
Meter, is for adapting to said structure.
It is used as the optional embodiment of the fit structure：Two strips are provided with the dial-out driver vertically
Groove, two strip grooves are oppositely arranged, and a pin is laterally fixed on the push rod, and strip described in two is stretched at the two ends of the pin
In shape groove.
The front and back ends for transfering to driver cavity are also respectively fixed with guide pad and lower guide pad, described upper and lower to lead
The perforate being adapted to the push rod is provided with the middle part of to block, the push rod is passed from the perforate in the middle part of the upper and lower guide pad.
The dial-out driver is made up of claw bar and claw bar nut, and the claw bar has external screw thread, the claw bar nut sleeve
Dress is thereon.
The guide cylinder is fixed on below the claw bar nut by its rear end bottom surface, and the guide cylinder barrel chamber internal diameter is more than
The cleft hand external diameter, so as to choosing for the thin-wall bush of the invention that can be adapted in shallower liner.
Compared with prior art, the present invention has advantages below：
Extracting apparatus of the present invention grabs the structure of finger, increases the active area of itself and thin-wall bush, in addition, the present invention is set
Guide cylinder, is oriented to during bushing dial-out, bushing is more smoothly pulled out, large diameter thin wall bushing will not be made
Into damage.
Brief description of the drawings
Fig. 1 is the installation diagram of the embodiment of the present invention one；
Fig. 2 be the embodiment of the present invention one handgrip and claw bar attachment structure sectional view；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 3 A-A views；
Fig. 5 is the upward view of the top of embodiment one；
Fig. 6 is the structural representation (waiting to supplement) of mounting means of the push rod in claw bar in the embodiment of the present invention three；
Fig. 7 is the upward view for implementing to come directly towards in three.
Embodiment
Embodiment one (is related to accompanying drawing 1~5)
Embodiment one is applicable to the extraction of the bushing radially across an axle.
Lower end correspondence transfers to the front end of device in Fig. 1, and upper end correspondence transfers to the rear end of device.
As shown in Fig. 1~5, the large diameter thin wall bushing extracting apparatus of the present embodiment includes being used for by grabbing finger 11 and enclosing to form
Hold out against the cleft hand 1 of bushing inwall, the dial-out driver 2 for granting the upward lifting power of cleft hand 1 and grab finger for adjusting cleft hand 1
The subtended angle adjustment mechanism 3 of subtended angle, and the guide cylinder 4 for guiding.
As shown in figs. 2 to 4, grabbing for cleft hand 1 refers to 11 with 10, circumferentially disposed, and is divided into two groups, symmetrically located at its institute
In the both sides of circumference, grab near one another between finger 11 with group, as shown in figure 3, two groups are grabbed and form vacancy between finger 11, so that two
Group grabs finger and 11 is arranged in two rows, often arranges and finger 11 is grabbed by 5 forms side by side, grabs 11 upper ends of finger and is linked together shape by a bottom surface ring
Into cleft hand 1.Grab finger 11 lower ends turn up, formed curved flanges 111, the flange 111 have arc end face, many grab refer to 11 arc
More than the 1/3 of circumference circle where the total length of shape flange 111 accounts for it.
Driver 2 is transferred to be made up of claw bar 21 and claw bar nut 22, claw bar 21 has external screw thread, claw bar nut 22 is set with it
On.The middle part of claw bar 21 has the cavity of axial direction, and provided with external screw thread, the bottom surface ring of the connected upper end of cleft hand 1 in the lower end of claw bar 21, claw bar
21 cavitys are connected with annular distance in the ring of bottom surface, so as to be connected with grabbing to refer on the inside of 11.When cleft hand 1 is held out against in bushing inwall, rotary pawl
Stem nut 22, claw bar 21 is moved upwards, grants the upward lifting power of cleft hand 1.The external diameter of claw bar nut 22 is more than where thin-wall bush
The diameter of structure inner chamber, so as on the end face of structure where being pressed together on thin-wall bush.
It is provided with two strip grooves 211, two strips vertically in order to coordinate with subtended angle adjustment mechanism 3, on claw bar 21
Groove 211 is oppositely arranged.
Subtended angle adjustment mechanism 3 includes top 31, lifting rod, and lifting rod is made up of push rod 32 and push rod lock 33 again, pushes up
Bar 32 has external screw thread, in the cavity of claw bar 21, and external diameter is less than the internal diameter of cavity, and the two ends of push rod 32 pass cavity, under
Hold and be connected with positioned at the top 31 grabbed between finger 11, threaded upper ends suit is located at the push rod lock 33 in the outside of claw bar 21.Rotation
Push rod lock 33, push rod 32 can only axially move up and down, so that band because of its fit structure between claw bar 21 along push rod 32
Dynamic top 31 move up and down strut or loosen cleft hand 1 grab finger 11.The external diameter of push rod lock 33 is more than the cavity inside diameter of claw bar 21, main
It is used to lock subtended angle adjustment mechanism 3 with transfering to the relative position of driver 2 and driving push rod 32 to move up and down.Top 31 is used for
After pull-up, strut cleft hand 1 grabs finger 11, is held out against so as to grab finger 11 in thin-wall bush inwall.It is to the requirement for coming directly towards 31 structures,
Ask top 31 to grab formation external diameter at finger 11 in corresponding two row gradually to expand and downwardly projecting more than 11 place circumference internal diameters of finger are grabbed
Two sections of arcwall faces 311, be that the breach for referring to vacancy between 11 is grabbed corresponding to two rows between two sections of arcwall faces 311, top 31 is by this
Two sections of arcwall faces 311 are formed by connecting by the connection sheet 312 of upper end.
If not radially across an axle in the middle part of bushing, the top in the present invention can also directly use longitudinal section to be trapezoidal
Cylinder is constituted, and can also use spheroid, can realize that present invention top 31 requires the function of realizing.
A radial hole is laterally provided with the push rod 32 of subtended angle adjustment mechanism 3, one is fixed in an interference fit in the hole
Pin 6, the two ends of pin 6 are stretched into the two strip grooves 211 for transfering to the claw bar 21 of driver 2, and subtended angle adjustment mechanism 3 is limited with this
It can only be moved axially along dial-out driver 2.
Device is transferred to also to include upper guide pad 8 and lower guide pad 7, they are separately fixed at claw bar in an interference fit
The upper and lower end of 21 cavitys, their middle parts are all provided with perforate be adapted to push rod 32, and push rod 32 is in the middle part of the upper and lower guide pad 8,7
Passed in perforate.Upper guide pad 8 and lower guide pad 7 are used to limit the radial deflection in driver 2 is transferred to of subtended angle adjustment mechanism 3
Amplitude so that subtended angle adjustment mechanism 3 uniformly strut cleft hand 1 grab finger 11.
There is perforate in the middle part of guide cylinder 4 and structure inner chamber size fit where thin-wall bush, the upper end bottom surface of guide cylinder 4, it
It is enclosed on the claw bar 21 for transfering to driver 2, positioned at the lower section of claw bar nut 22, is fixed on claw bar nut 22 by its perforate.This
In embodiment, the lower ending opening of guide cylinder 4 has flanging, the inner structural wall where thin-wall bush by the flanging of guide cylinder 4
Slide and realize guiding.The barrel chamber internal diameter of guide cylinder 4 is more than the external diameter of cleft hand 1, in the barrel chamber of 1 retractable guide cylinder of cleft hand 4, to send out this
The bright thin-wall bush that can be adapted in shallower liner is chosen.
The present invention is transferred into device for extracting during the large diameter thin wall bushing in Pneumatic component flow housing, concrete operations
Process is as follows：
Driver is extracted in turn, you can apply steady and symmetrical driving force to large diameter thin wall bushing, it is ensured that be pulled out
Large diameter thin wall bushing stand intact.
Guide cylinder can fit flow housing, make guide cylinder and flow housing coaxial, it is ensured that large diameter thin wall bushing is with straight
Line tracking is pulled out, and its inner space can accommodate bushing.
Push rod lock 33 is first unscrewed, allows subtended angle adjustment mechanism 3 to be unclamped with cleft hand 1 and dial-out driver 2, allows them to recover
Nature；
Claw bar nut 22 is unscrewed, allows dial-out driver 2 and subtended angle adjustment mechanism 3 down to stretch out appropriately distance；
Large diameter thin wall bushing extracting apparatus is put into aircraft Pneumatic component flow enclosure interior, allow guide cylinder 4 with it is pneumatic
Part flow inner walls are fitted, and screw claw bar nut 22 so that transferred to the lifting cleft hand 1 upwards of driver 2, made grabbing for cleft hand 1
Refer to 11 bottoms for just contacting large diameter thin wall bushing；
Lock push rod lock 33 so that push rod 32 drives the motion upwards of top 31, and strut cleft hand 1 grabs finger 11, make to grab
Refer to 11 and hold out against large diameter thin wall bushing inwall；
Turn claw bar nut 22, borrows the power of screw-driven, and large diameter thin wall bushing is extracted into Pneumatic component flow housing.
Embodiment two
Embodiment two is that mounting means of the push rod 32 in claw bar 21 is different from the difference of embodiment one.In embodiment two
Push rod lock 33 is fixed on claw bar 21, and push rod 32 can be rotated in claw bar 21, i.e., need not set pin 6.Now, top is rotated
Bar 32, push rod 32 can be moved up and down in the presence of screw thread.Because push rod 32 is rotatable, so, the arcwall face of top 31 should
For the complete curved surface rounded, such as top 31 is in spherical.
Embodiment three
It is different that embodiment three and the difference of embodiment one lie also in mounting means of the push rod 32 in claw bar 21, embodiment three
In, mounting means of the push rod 32 in claw bar 21 is as shown in fig. 6, provided with the interior spiral shell being adapted to push rod 32 in the cavity of claw bar 21
Line, now, rotates push rod 32, push rod 32 can be moved up and down in the presence of screw thread.As be the same as Example two, the embodiment
In, the arcwall face 311 of top 31 also should be the complete curved surface rounded, as shown in Fig. 6,7, and top uses longitudinal section for ladder
The cylinder of shape is constituted.
Claims (10)
1. a kind of large diameter thin wall bushing extracting apparatus, including refer to the cleft hand, the use that enclose into being used to hold out against bushing inwall by grabbing
In the dial-outs driver for granting cleft hand lifting power and the subtended angle adjustment mechanism for grabbing for adjusting the cleft hand finger subtended angle；
Characterized in that, the finger of grabbing of the cleft hand has more than 6, circumferentially disposed, grabbing fingers are flexible, outside its front end
Turn over, form curved flanges, the flange has the curved end as force side, and the curved flanges total length of grabbing fingers accounts for its institute
More than the 1/3 of circumference circle, the extracting apparatus also includes guide cylinder, the guide cylinder and structure where the thin-wall bush
Inner chamber size fit, the guide cylinder coaxially be arranged on it is described dial-out driver on.
2. large diameter thin wall bushing extracting apparatus according to claim 1, it is characterised in that in the middle part of the dial-out driver
Cavity with axial direction, the cavity is grabbed finger inner side with the cleft hand and connected；
The subtended angle adjustment mechanism includes lifting rod and top, and the lifting rod is arranged in the cavity of the dial-out driver,
Two ends pass the cavity, and front end is connected with the top between grabbing fingers, and the top is lifted by the lifting rod
And when moving backward, strut the cleft hand grabs finger.
3. large diameter thin wall bushing extracting apparatus according to claim 2, it is characterised in that the lifting rod includes push rod
With push rod lock, the push rod has external screw thread, and the push rod lock thread set is on the push rod, the lifting rod
Mounting means in the dial-out driver, makes when rotating the push rod or push rod lock, the upper and lower fortune of the push rod
It is dynamic.
4. large diameter thin wall bushing extracting apparatus according to claim 3, it is characterised in that the push rod lock is fixed
On the dial-out driver；Or the push rod lock is in the dial-out driver, the cavity of the push rod lock
Provided with the internal thread being adapted to the push rod.
5. large diameter thin wall bushing extracting apparatus according to claim 4, it is characterised in that the top is corresponding described
The arcwall face for gradually expanding for external diameter at finger and being protruded more than circumference internal diameter where grabbing fingers is grabbed, the arcwall face is around one
The complete curved surface in week.
6. large diameter thin wall bushing extracting apparatus according to claim 3, it is characterised in that the push rod lock is installed
In the push rod rear end, on the outside of the dial-out driver, external diameter is more than the internal diameter of the dial-out driver cavity, the top
Being provided between bar and the dial-out driver can only transfer to what be axially moved in driver to match somebody with somebody for limiting the push rod described
Close structure；
Many grabbing fingers are divided into two groups, symmetrically located at the both sides of circumference where it, grab near one another between referring to group, two groups
Grab and form vacancy between referring to, so that two groups of grabbing fingers are arranged in two rows；
The top gradually expands and more than circumference internal diameter where grabbing fingers accordingly often forming external diameter at row's grabbing fingers
It is the breach corresponding to vacancy between two row's grabbing fingers between the arcwall face of protrusion, two sections of arcwall faces.
7. large diameter thin wall bushing extracting apparatus according to claim 6, it is characterised in that edge on the dial-out driver
Two strip grooves axially are provided with, two strip grooves are oppositely arranged, and a pin is laterally fixed on the push rod, the pin
Two ends are stretched into strip groove described in two.
8. large diameter thin wall bushing extracting apparatus according to claim 7, it is characterised in that the dial-out driver cavity
Front and back ends be also respectively fixed with guide pad and lower guide pad, be provided with and be adapted to the push rod in the middle part of the upper and lower guide pad
Perforate, the push rod passes from the perforate in the middle part of the upper and lower guide pad.
9. the large diameter thin wall bushing extracting apparatus according to any one of claim 1~8, it is characterised in that the dial-out
Driver is made up of claw bar and claw bar nut, and the claw bar has external screw thread, and the claw bar nut suit is thereon.
10. large diameter thin wall bushing extracting apparatus according to claim 9, it is characterised in that the guide cylinder passes through it
Rear end bottom surface is fixed on below the claw bar nut, and the guide cylinder barrel chamber internal diameter is more than the cleft hand external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236011.3A CN106976038A (en) | 2017-04-12 | 2017-04-12 | A kind of large diameter thin wall bushing extracting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236011.3A CN106976038A (en) | 2017-04-12 | 2017-04-12 | A kind of large diameter thin wall bushing extracting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106976038A true CN106976038A (en) | 2017-07-25 |
Family
ID=59345114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236011.3A Withdrawn CN106976038A (en) | 2017-04-12 | 2017-04-12 | A kind of large diameter thin wall bushing extracting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106976038A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274431A (en) * | 2018-01-24 | 2018-07-13 | 北京安达维尔机械维修技术有限公司 | Provision for disengagement for aircraft air-conditioning system valve thin-wall bush |
| CN108941429A (en) * | 2018-07-31 | 2018-12-07 | 眉山中车紧固件科技有限公司 | A kind of rivet provision for disengagement |
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|---|---|---|---|---|
| CN108274431A (en) * | 2018-01-24 | 2018-07-13 | 北京安达维尔机械维修技术有限公司 | Provision for disengagement for aircraft air-conditioning system valve thin-wall bush |
| CN108941429A (en) * | 2018-07-31 | 2018-12-07 | 眉山中车紧固件科技有限公司 | A kind of rivet provision for disengagement |
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Application publication date: 20170725 |