CN107900240A - Planetary pipe-expanding device with pawl structures - Google Patents
Planetary pipe-expanding device with pawl structures Download PDFInfo
- Publication number
- CN107900240A CN107900240A CN201711124745.9A CN201711124745A CN107900240A CN 107900240 A CN107900240 A CN 107900240A CN 201711124745 A CN201711124745 A CN 201711124745A CN 107900240 A CN107900240 A CN 107900240A
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- China
- Prior art keywords
- tube expansion
- pawl
- shaft
- valve bar
- expansion valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of planetary pipe-expanding device with pawl structures, comprising：The housing of a pair of opposing；One handle；One drive component, the drive component include a sun wheel carrier, a fixed gear ring, three planetary gears and a planet stent；One tube expansion component, the tube expansion component include a drive shaft, the tube expansion valve bar of a pair of opposing, some reset spring coils, the spring seat slice and a pawl assembly of an arc；Wherein, the tube expansion valve bar is between one first operating position and one second operating position, when the tube expansion valve bar is in the first operating position, a pair of of tube expansion valve bar closes up into a cylinder, when the tube expansion valve bar is in the second operating position, a pair of of tube expansion valve bar outwards separates and extrudes the inner wall of copper pipe at the same time.The planetary pipe-expanding device operation facility, no dependence electric power, is adapted to the tube expansion operation of the copper pipe of a variety of calibers, also is adapted for the tube expansion operation of other flexible metal conduits.
Description
Technical field
The present invention relates to a kind of instrument, more precisely, being a kind of planetary pipe-expanding device.
Background technology
In refrigerating field, it is often necessary to carry out tube expansion to the interface of copper pipe, existing method is generally using dedicated multiple
Mould carries out manual expander, and operation is rather inconvenient.
The content of the invention
The present invention mainly solves the technical problem present in the prior art, so as to provide a kind of planetary pipe-expanding device.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
The invention discloses a kind of planetary pipe-expanding device with pawl structures, it is characterised in that described is planetary swollen
Pipe device includes：
The housing of a pair of opposing, the center of the housing are equipped with a fixed shaft hole, the week of the fixed shaft hole
Some first connected circular holes and some flange barrels are equipped with upwards, and an annular is respectively equipped with the outside of first connected circular hole
First connection the ring disk, described first connection the ring disk circumferential direction be equipped with some first the ring disk circular holes, first the ring disk
Circular hole is connected by one first attachment screw respectively with first connected circular hole, is respectively equipped with the top of the housing
One handle；
One handle, the handle are arranged on the side of the housing；
One drive component, the drive component include a sun wheel carrier, a fixed gear ring, three planetary gears and a line
Prong frame, the sun wheel carrier include a sun gear and an input shaft, and the side wall of the input shaft is equipped with an input shaft
Keyway, the outer wall circumferential direction of the fixed gear ring are equipped with some gear ring flanges, and it is convex to be respectively equipped with one on the gear ring flange
Edge through hole, the flange hole are connected by a flange screws respectively with the flange barrel, the planet stent
Planet plate comprising a triangle, the middle part of the planet plate are equipped with an output shaft, and the side wall of the output shaft is equipped with
One exports shaft key groove, and a gear fixing axle, the end of the gear fixing axle are respectively equipped with three angles of the planet plate
End is respectively equipped with a pair of of planetary bearing, and the planetary gear is rotatably arranged on the planetary bearing, the hand
Handle is removably disposed in the input the tip of the axis；
One tube expansion component, the tube expansion component are separably connected with the drive component, the tube expansion group
Part includes a drive shaft, the tube expansion valve bar of a pair of opposing, some reset spring coils, the spring seat slice and a pawl of an arc
Component, the drive shaft include a columned shaft main body, and the bottom of the shaft main body is connected equipped with a shaft
Hole, the side wall of the shaft connecting hole are equipped with a shaft connecting hole keyway, and the output shaft connects through the shaft
Hole is connect, the head of the shaft main body is equipped with a columned connection cylinder, is set in the top circumferential direction of the connection cylinder
There are some drivings to protrude, the head of the tube expansion valve bar is equipped with a ladder tringle, and the afterbody of the tube expansion valve bar is equipped with one
The rotating cylinder of semi-circular cylindrical, the outer wall of the tube expansion valve bar are equipped with the upper spring positioning groove of some arcs, the bullet
The inner wall of spring base plate is equipped with the lower spring positioning groove of some arcs, and the reset spring coil is separately positioned on the upper spring
Between locating slot and lower spring positioning groove, the pawl assembly includes a pawl ring support, some reduction torsion springs and some extensions
Pawl, the pawl ring support include the ring support main body of an annular, are evenly provided with the inner wall circumferential direction of the ring support main body
Some pawl rotation circular grooves and some torsional springs fix circular groove, and adjacent pawl rotation circular groove and torsional spring are set respectively between fixing circular groove
There is an activity space for the expansion pawl activity, the spring body of the reduction torsion spring is arranged on the torsional spring and fixes circle
In groove, the expansion pawl includes a pawl main shaft, and first driving of the one end equipped with a wedge shape of the pawl main shaft is convex
Block, the other end of the pawl main shaft are equipped with a second discoid driving convex block, the end of the described first driving convex block
Equipped with a columned convex block rotation axis, the convex block rotation axis is rotatably arranged in the pawl rotation circular groove,
A torsional spring card slot is respectively equipped with the outer wall of the first driving convex block；
One preposition bearing, the preposition bearing are arranged in a wherein fixed shaft hole, and the input shaft passes through
Wear the preposition bearing；
One postposition bearing, the postposition bearing are arranged in another fixed shaft hole, a pair of of tube expansion valve
Bar runs through the postposition bearing；
Wherein, the tube expansion valve bar is between one first operating position and one second operating position, when described swollen
When pipe valve bar is in the first operating position, a pair of of tube expansion valve bar closes up into a cylinder, when the tube expansion valve bar is in
During the second operating position, a pair of of tube expansion valve bar outwards separates and extrudes the inner wall of copper pipe at the same time.
As preferred embodiments of the present invention, the tube expansion valve bar has magnetism.
The planetary pipe-expanding device with pawl structures of the present invention has the following advantages：This is planetary swollen with pawl structures
Pipe device operation facility, no dependence electric power, is adapted to the tube expansion operation of the copper pipe of a variety of calibers, also is adapted for the swollen of other flexible metal conduits
Pipe operation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the dimensional structure diagram of the pipe-expanding device of the present invention；
Fig. 2 is the stereochemical structure decomposing schematic representation of the pipe-expanding device in Fig. 1；
Fig. 3 is the detail enlarged diagram of the a-quadrant of the pipe-expanding device in Fig. 2；
Fig. 4 is the detail enlarged diagram of the B area of the pipe-expanding device in Fig. 2；
Fig. 5 is the further stereochemical structure decomposing schematic representation of the pipe-expanding device in Fig. 2；
Fig. 6 is the stereochemical structure decomposing schematic representation of the drive component of the pipe-expanding device in Fig. 5；
Fig. 7 is the detail enlarged diagram in the C regions of the drive component of the pipe-expanding device in Fig. 6；
Fig. 8 is the stereochemical structure decomposing schematic representation of the tube expansion component of the pipe-expanding device in Fig. 5；
Fig. 9 is the detail enlarged diagram in the D regions in Fig. 8；
Figure 10 is the further stereochemical structure decomposing schematic representation of the tube expansion component of the pipe-expanding device in Fig. 8；
Figure 11 is the detail enlarged diagram in the E regions in Figure 10；
Figure 12 is the operation chart of the pipe-expanding device of the present invention, only show part-structure, at this time, drive shaft
Driving is prominent on neutral position；
Figure 13 is sectional view of the pipe-expanding device along F-F lines in Figure 12；
Figure 14 is the detail enlarged diagram in the G regions in Figure 13；
Figure 15 is the operation chart of the pipe-expanding device of the present invention, only show part-structure, at this time, drive shaft
The prominent dieback of driving slips into inclined-plane；
Figure 16 is sectional view of the pipe-expanding device along H-H lines in Figure 15；
Figure 17 is the detail enlarged diagram in the I regions in Figure 16；
Figure 18 is the stereochemical structure decomposing schematic representation of second of embodiment of the pipe-expanding device of the present invention.Only show at this time
The part body shown；
Figure 19 is the detail enlarged diagram in the J regions in Figure 18；
Figure 20 is the dimensional structure diagram of the pawl assembly in Figure 18；
Figure 21 is the dimensional structure diagram of the pawl assembly in Figure 20, is at this time another visual angle；
Figure 22 is the stereochemical structure decomposing schematic representation of the pawl assembly in Figure 20；
Figure 23 is the detail enlarged diagram in the K regions in Figure 22；
Figure 24 is the dimensional structure diagram of the pawl ring support of the pawl assembly in Figure 22；
Figure 25 is the dimensional structure diagram of the expansion pawl of the pawl assembly in Figure 22；
Figure 26 is the dimensional structure diagram of the pipe-expanding device in Figure 18, is at this time another visual angle；
Figure 27 is sectional view of the pipe-expanding device along L-L lines in Figure 26；
Figure 28 is the detail enlarged diagram in the M regions in Figure 27.
Embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1 to 11, which includes the housing 2 of a pair of opposing, and the center of the housing 2 is equipped with
One fixed shaft hole 21, the circumferential direction of the fixed shaft hole 21 are equipped with some first connected circular holes 22 and some flange barrels 23, this
The outside of one connected circular hole 22 is respectively equipped with the first connection the ring disk 3 of an annular, if the circumferential direction of the first connection the ring disk 3 is equipped with
Dry first the ring disk circular hole 31, the first the ring disk circular hole 31 pass through one first attachment screw, 4 phase respectively with first connected circular hole 22
Connection, the top of the housing 2 is respectively equipped with a handle 20.One handle 5 is equipped with the side of the housing 2.
The pipe-expanding device 1 also includes a drive component D, drive component D include a sun wheel carrier 8, a fixed gear ring 9,
Three 11 and one planet stents 10 of planetary gear, the sun wheel carrier 8 include a sun gear 81 and an input shaft 82, the input shaft 82
Side wall be equipped with an input shaft key groove 821, the outer wall circumferential direction of the fixed gear ring 9 is equipped with some gear ring flanges 91, the gear ring
A flange hole 92 is respectively equipped with flange 91, which passes through 12 phase of a flange screws respectively with the flange barrel 23
Connection, the planet stent 10 include the planet plate 101 of a triangle, and the middle part of the planet plate 101 is equipped with an output shaft 102, should
The side wall of output shaft 102 is equipped with an output shaft key groove 1021, and being respectively equipped with a gear on three angles of the planet plate 101 fixes
Axis 103, the end of the gear fixing axle 103 are respectively equipped with a pair of of planetary bearing 104, which is rotatably arranged in
On the planetary bearing 104, which is removably disposed in the end of the input shaft 82.
The pipe-expanding device 1 also includes a tube expansion component S, and tube expansion component S is separably connected with drive component D,
Tube expansion component S includes a drive shaft 13, the tube expansion valve bar 14 of a pair of opposing, some reseting leafs 15 and one arcs
Spring seat slice 16, the drive shaft 13 include a columned shaft main body 131, and the bottom of the shaft main body 131 is equipped with one turn
Axis connection hole 132, the side wall of the shaft connecting hole 132 are equipped with a shaft connecting hole keyway 133, which runs through should
Shaft connecting hole 132, the head of the shaft main body 131 are equipped with a columned connection cylinder 134, the top of the connection cylinder 134
Portion is equipped with a discoid driving disk 135, and the side wall of the driving disk 135 is equipped with a driving prominent 136, the tube expansion valve bar
14 head is equipped with a ladder tringle 141, and the afterbody of the tube expansion valve bar 14 is equipped with 142 and one ring of rotating cylinder of a semi-circular cylindrical
The limited location snap ring 143 of shape, the both sides of the edge of the rotating cylinder 142 are respectively equipped with a reset notch 144 and one and slip into inclined-plane 145,
The outer wall of the tube expansion valve bar 14 is equipped with the upper spring positioning groove 140 of some arcs, if the inner wall of the spring seat slice 16 is equipped with
The lower spring positioning groove 161 of dry arc, the reseting leaf 15 are separately positioned on spring positioning groove 140 and lower spring positioning groove on this
Between 161.
The pipe-expanding device 1 also includes a preposition bearing 7, which is arranged in a wherein fixed shaft hole 21, should
Input shaft 82 runs through the preposition bearing 7.
The pipe-expanding device 1 also includes a postposition bearing 6, which is arranged in another fixed shaft hole 21, this one
The postposition bearing 6 is run through to tube expansion valve bar 14.
Wherein, which is between one first operating position and one second operating position, when the tube expansion valve bar
14 when being in the first operating position, which closes up into a cylinder, when the tube expansion valve bar 14 is in the second work
During position, which outwards separates and extrudes the inner wall of copper pipe at the same time.
The tube expansion valve bar 14 has magnetism, can effectively prevent rocking for tube expansion valve bar 14.Hereinafter can tube expansion valve bar 14
Working method continue to be illustrated.
The working method of the pipe-expanding device is illustrated below.
As shown in Figure 12 to Figure 14, handle 5 not yet rotates, and the driving of drive shaft 13 protrudes 136 on neutral position,
At this time, driving prominent 135 is protruded slips into the gap between inclined-plane 145 in a pair.Due to drive disk 135 radius be equal to or
It is slightly less than the radius of the radian of the inner wall of rotating cylinder 142, then, tube expansion valve bar 14 closes up into one under the action of reseting leaf 15
Cylinder or approximate cylinder.
As shown in Figure 15 to Figure 17, the copper pipe for needing tube expansion is inserted into the corresponding rank on ladder tringle 141 by user
On terraced groove, and rotational handle 5, the input shaft 82 of the rotation driving sun wheel carrier 8 of handle 5, by sun gear 81 and planetary gear
11 and the power transmission of fixed gear ring 9, the output shaft 102 of planet stent 10 directly drive drive shaft 13 and rotated.
Then, driving prominent 136 starts to extrude slips into inclined-plane 145 in its rotation direction, until driving prominent 136 is by this
Slip into 145 dieback of inclined-plane.At this time, which protrudes 136 and is in dieback position.At this time, outwards synchronous point of a pair of of tube expansion valve bar 14
From the inner wall for simultaneously extruding copper pipe at the same time, meanwhile, this as drive shaft 13 rotates synchronously, quickly completes tube expansion valve bar 14
The tube expansion operation of copper pipe joint.After tube expansion is completed, handle 5 is rotated backward, driving prominent 136 comes back to neutral position and spreads
On, close up into a cylinder or approximate cylinder again under the action of reseting leaf 15.
It is pointed out that in driving prominent 136 from during neutral position turns to dieback position, it is prominent due to driving
Go out the frictional force between 136 and the inner wall of rotating cylinder 142, tube expansion valve bar 14 can still occurs initially in this with drive shaft 13
Rotate, until driving prominent 136 reaches dieback position.Once driving prominent 136 reaches dieback position, tube expansion valve bar 14 and driving
Shaft 13 starts to rotate synchronously.
In the rotation process of handle 5, the rotating speed of handle 5 is reduced by drive component D, and the moment of torsion of drive shaft 13 obtains greatly
Amplitude improves, and tube expansion speed is fast, efficient.Obviously, slow down here with planetary reduction gear structure, slowed down using others and tied
Structure is also feasible, such as worm and worm wheel structure etc..
It is second of embodiment of the pipe-expanding device of the present invention, with former embodiment as shown in Figure 18 to Figure 28
Unlike, a pawl assembly R is introduced in embodiment at this time.The effect of pawl assembly R and application method are later
In can explain detailedly.
As described in Figure 18, tube expansion component SA is separably connected with drive component D, and tube expansion component SA includes one
Drive shaft 13A, the tube expansion valve bar 14A of a pair of opposing, some reset spring coil 15A, the spring seat slice 16A and one of an arc
Pawl assembly R.Drive shaft 13A includes a columned shaft main body 131A, and the bottom of shaft main body 131A is equipped with class
As shaft connecting hole, explanation is not repeated herein.
The head of shaft main body 131A is equipped with a columned connection cylinder 134A, the top week of connection cylinder 134A
The prominent 136A of some drivings is equipped with upwards.The head of tube expansion valve bar 14A is equipped with a ladder tringle 141A, tube expansion valve bar 14A
Afterbody be equipped with the rotating cylinder 142A of a semi-circular cylindrical, the outer wall of tube expansion valve bar 14A is equipped with the upper spring of some arcs
The inner wall of locating slot 140A, spring seat slice 16A are equipped with the lower spring positioning groove 161A of some arcs, these reset spring coil
15A is separately positioned on this between spring positioning groove 140A and lower spring positioning groove 161A.
As shown in Figure 20 to Figure 22, pawl assembly R is arranged between rotating cylinder 142A, and pawl assembly R includes one
Pawl ring support 17, some reduction torsion springs 19 and some expansion pawls 18, the pawl ring support 17 include the ring support main body of an annular
171, some pawl rotation circular grooves 172 are evenly provided with the inner wall circumferential direction of the ring support main body 171 and some torsional springs fix circular groove
173, one is respectively equipped between adjacent pawl rotation circular groove 172 and torsional spring fixation circular groove 173 for the activity of expansion pawl 18
Activity space 174, the spring body of the reduction torsion spring 19 are arranged on the torsional spring and fix in circular groove 173.
As shown in figure 25, which includes a pawl main shaft 181, and one end of the pawl main shaft 181 is equipped with a wedge
First driving convex block 182 of shape, the other end of the pawl main shaft 181 are equipped with a second discoid driving convex block 185, this first
The end of driving convex block 182 is equipped with a columned convex block rotation axis 183, which is rotatably arranged in this
In pawl rotation circular groove 172, a torsional spring card slot 184 is respectively equipped with the outer wall of the first driving convex block 182, reduction torsion spring 19
Wherein a spring leg is stuck in the torsional spring card slot 184, and another spring leg of reduction torsion spring 19 then props up the bottom of activity space 174.This
Sample, each reduction torsion spring 19 oppresses corresponding expansion pawl 18, and expansion pawl 18 is had towards in pawl ring support 17
The trend that the heart is swung.Obviously, the quantity of reduction torsion spring 19 and expansion pawl 18 can arbitrarily be set.
The course of work of the embodiment is described below.As shown in Figure 26 to Figure 28, when drive shaft 13A rotations, driving
The inner wall that prominent 136A starts the first driving convex block 182 against expansion pawl 18 is slided (by the side wall where torsional spring card slot 184
It is defined as the outer wall of the first driving convex block 182), then, four expansion pawls 18 start to swing out, meanwhile, expansion pawl 18
Discoid second driving convex block 185 start to extrude rotating cylinder 142A so that the outside separated in synchronization of a pair of of tube expansion valve bar 14A
And the inner wall of copper pipe is extruded at the same time, until driving protrudes 136A by the inner wall dieback of rotating cylinder 142A.Then, this is to tube expansion valve
Bar 14A continues, as drive shaft 13A is rotated synchronously, to quickly complete the expander operation of copper pipe joint.After expander is completed,
Handle 5 is rotated backward, drives prominent 136A to come back on neutral position, under the action of spring coil 15A is resetted, tube expansion valve bar
14A closes up into a cylinder or approximate cylinder again.Due to being expanded using multiple spot bit synchronization, the deformation uniformity of copper pipe obtains effectively
Improve.
Pipe-expanding device operation facility, no dependence electric power, is adapted to the tube expansion operation of the copper pipe of a variety of calibers, also is adapted for other
The tube expansion operation of flexible metal conduit.
Not limited to this, any change or replacement expected without creative work, should all cover the guarantor in the present invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (2)
1. a kind of planetary pipe-expanding device with pawl structures, it is characterised in that the planetary pipe-expanding device (1) includes：
The housing (2) of a pair of opposing, the center of the housing (2) are equipped with a fixed shaft hole (21), the fixing axle
The circumferential direction in hole (21) is equipped with some first connected circular holes (22) and some flange barrels (23), first connected circular hole
(22) be respectively equipped with the outside of one annular first connection the ring disk (3), described first connection the ring disk (3) if circumferential direction be equipped with
Dry first the ring disk circular hole (31), the first the ring disk circular hole (31) and first connected circular hole (22) pass through one the respectively
One attachment screw (4) is connected, and a handle (20) is respectively equipped with the top of the housing (2)；
One handle (5), the handle (5) are arranged on the side of the housing (2)；
One drive component (D), the drive component (D) include a sun wheel carrier (8), a fixed gear ring (9), three planet teeth
(11) and a planet stent (10) are taken turns, the sun wheel carrier (8) includes a sun gear (81) and an input shaft (82), described
The side wall of input shaft (82) is equipped with an input shaft key groove (821), and the outer wall circumferential direction of the fixed gear ring (9) is equipped with some
Gear ring flange (91), is respectively equipped with a flange hole (92) on the gear ring flange (91), the flange hole (92) with
The flange barrel (23) is connected by a flange screws (12) respectively, and the planet stent (10) includes a triangle
Planet plate (101), the middle part of the planet plate (101) is equipped with an output shaft (102), the side of the output shaft (102)
Wall is equipped with an output shaft key groove (1021), and a gear fixing axle is respectively equipped with three angles of the planet plate (101)
(103), the end of the gear fixing axle (103) is respectively equipped with a pair of of planetary bearing (104), the planetary gear (11)
It is rotatably arranged on the planetary bearing (104), the handle (5) is removably disposed in the input shaft
(82) end；
One tube expansion component (SA), the tube expansion component (SA) is separably connected with the drive component (D), described
Tube expansion component (SA) includes a drive shaft (13A), the tube expansion valve bar (14A) of a pair of opposing, some reset spring coils
The spring seat slice (16A) and a pawl assembly (R) of (15A), an arc, it is columned that the drive shaft (13A) includes one
Shaft main body (131A), the bottom of the shaft main body (131A) are equipped with a shaft connecting hole (132), shaft connection
The side wall in hole (132) is equipped with a shaft connecting hole keyway (133), and the output shaft (102) is connected through the shaft
Hole (132), the head of the shaft main body (131A) are equipped with a columned connection cylinder (134A), the connection cylinder
The top circumferential direction of (134A) is equipped with some drivings and protrudes (136A), and the head of the tube expansion valve bar (14A) is equipped with a ladder
Tringle (141A), the afterbody of the tube expansion valve bar (14A) are equipped with the rotating cylinder (142A) of a semi-circular cylindrical, the tube expansion
The outer wall of valve bar (14A) is equipped with the upper spring positioning groove (140A) of some arcs, on the inner wall of the spring seat slice (16A)
Lower spring positioning groove (161A) equipped with some arcs, the reset spring coil (15A), which is separately positioned on the upper spring, to be determined
Between position groove (140A) and lower spring positioning groove (161A), the pawl assembly (R) includes a pawl ring support (17), Ruo Ganfu
Position torsional spring (19) and some expansion pawls (18), the pawl ring support (17) includes the ring support main body (171) of an annular, described
Ring support main body (171) inner wall circumferential direction on be evenly provided with some pawl rotation circular grooves (172) and some torsional springs and fix circular groove
(173), adjacent pawl rotation circular groove (172) and torsional spring are respectively equipped with one for the extension spine between fixing circular groove (173)
The activity space (174) of pawl (18) activity, the spring body of the reduction torsion spring (19) are arranged on the torsional spring and fix circular groove
(173) in, the expansion pawl (18) includes a pawl main shaft (181), and one end of the pawl main shaft (181) is equipped with one
First driving convex block (182) of wedge shape, the other end of the pawl main shaft (181) are equipped with a second discoid driving convex block
(185), the end of the first driving convex block (182) is equipped with a columned convex block rotation axis (183), and the convex block turns
Moving axis (183) is rotatably arranged in the pawl rotation circular groove (172), outside the described first driving convex block (182)
A torsional spring card slot (184) is respectively equipped with wall；
One preposition bearing (7), the preposition bearing (7) are arranged in a wherein fixed shaft hole (21), and described is defeated
Enter axis (82) and run through the preposition bearing (7)；
One postposition bearing (6), the postposition bearing (6) are arranged in another fixed shaft hole (21), described a pair
Tube expansion valve bar (14A) runs through the postposition bearing (6)；
Wherein, the tube expansion valve bar (14A) is between one first operating position and one second operating position, when described swollen
When pipe valve bar (14A) is in the first operating position, a pair of of tube expansion valve bar (14A) closes up into a cylinder, when described swollen
When pipe valve bar (14A) is in the second operating position, outwards separation simultaneously extrudes copper pipe to a pair of of tube expansion valve bar (14A) at the same time
Inner wall.
2. the planetary pipe-expanding device according to claim 1 with pawl structures, it is characterised in that the tube expansion valve bar
(14A) has magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711124745.9A CN107900240A (en) | 2017-11-14 | 2017-11-14 | Planetary pipe-expanding device with pawl structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711124745.9A CN107900240A (en) | 2017-11-14 | 2017-11-14 | Planetary pipe-expanding device with pawl structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107900240A true CN107900240A (en) | 2018-04-13 |
Family
ID=61845482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711124745.9A Pending CN107900240A (en) | 2017-11-14 | 2017-11-14 | Planetary pipe-expanding device with pawl structures |
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| Country | Link |
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| CN (1) | CN107900240A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958707A (en) * | 2021-02-05 | 2021-06-15 | 中山职业技术学院 | Tube expansion device |
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|---|---|---|---|---|
| US4055064A (en) * | 1976-01-08 | 1977-10-25 | Schow Virgle L | Muffler and tail pipe expander and cleaner |
| EP2228151A2 (en) * | 2009-03-09 | 2010-09-15 | IPA Produktions- und Vertriebsges.m.b.H. | Tool for expanding a workpiece |
| FR2972373A1 (en) * | 2011-03-10 | 2012-09-14 | Peugeot Citroen Automobiles Sa | Method for preparing internal surface of barrel of crankcase of thermal engine of motor vehicle, involves performing plastic deformation phase of asperities from expansion phase of mandrel previously introduced inside barrel |
| CN204747303U (en) * | 2015-06-01 | 2015-11-11 | 金华市威科工贸有限公司 | Manual tub ware that rises |
| CN205414181U (en) * | 2016-03-23 | 2016-08-03 | 温州市凯宇五金有限公司 | Air -conditioning copper pipe enlarger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958707A (en) * | 2021-02-05 | 2021-06-15 | 中山职业技术学院 | Tube expansion device |
| CN112958707B (en) * | 2021-02-05 | 2022-07-12 | 中山职业技术学院 | Tube expansion device |
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Application publication date: 20180413 |