Summary of the invention
The deficiency existed for prior art, it is an object of the invention to provide a kind of portable tube expansion of U-tube
Device.
For achieving the above object, the present invention provides a kind of U-tube tube expander, it is characterised in that: include U
Shape pipe fixing device, two expander rolls and for drive two described expander roll advanced in unison and synchronize retreat swollen
Rod driving device, the end of described expander roll one end is provided with swollen head.
Preferably, described expander roll driving means includes warehouse, is provided with motor and two groups of use in described warehouse
In the driven gear molectron driving two described expander rolls to advance or retreat respectively, the output shaft of described motor
Being connected by shaft coupling has driving gear, described driven gear molectron to include the first driven gear and second
Driven gear, described first driven gear and described drive gear teeth wheel coordinate, described first driven gear
Coordinate with described second driven gear gear, described first driven gear and the tooth of described second driven gear
Tooth centre position all has a U-type groove, and described first driven gear is mutual with described second driven gear
Engagement, described first driven gear forms a circular hole, institute with the U-type groove on described second driven gear
State expander roll through described through hole, described first driven gear and described second driven gear all with described expander roll
Frictional fit.
Preferably, described expander roll driving means also includes driven gear molectron described in two groups, described in four groups
Driven gear molectron is divided into two sets, and correspondence is often overlapped described driven gear molectron and is provided with first actively
Gear and the second driving gear, described first driving gear and the second driving gear connected by connecting shaft,
Described driving gear coordinates with described first driving gear gear, often overlaps the of described driven gear molectron
One driven gear all coordinates with corresponding described second driving gear gear.
Preferably, the outside at described second driven gear rotor shaft direction the second driven gear is provided with gate
Expander roll locking device, described gate expander roll locking device includes door pillar body and cross girder, and described expander roll is locked
The door pillar body of device is fixing with described second driven gear to be connected, on the cross girder of described expander roll locking device
Having the screw being perpendicular to described second driven gear rotor shaft direction, corresponding described screw is provided with interior hexagonal
Fillister head screw.
Preferably, described U-tube fixing device includes that reducing sleeve and sliding sleeve, described reducing sleeve include
Connecting portion, pars intermedia and clamping part, described drill holder jacket casing is contained in outside described swollen head, described connecting portion
Fixing with described warehouse and be connected, described clamping part is split-type chuck, and the external diameter of described pars intermedia is less than institute
Stating external diameter when split-type chuck does not steps up, described sliding sleeve is enclosed within outside described pars intermedia, described U-tube
Fixing device also includes the sliding sleeve mobile device making to slide over slide anteroposterior between pars intermedia and clamping part.
Preferably, described sliding sleeve surface being provided with step surface, described sliding sleeve mobile device includes band motion block,
Described band motion block is fixing with described step surface to be connected, and described band motion block is provided with bearing, on described warehouse
Being provided with the sliding axle being parallel to described expander roll, described bearing slides on described sliding axle.
Preferably, described expander roll is provided with the travel switch for controlling described expander roll shift motion.
Preferably, also include that gate portable shelf, described gate portable shelf include door pillar body and cross girder, institute
State that the door pillar body of gate hanger is fixing with described warehouse to be connected, the cross girder of described gate hanger is provided with
Handle.
The U-tube tube expander that the present invention provides, swollen U-tube tube expansion is uniform, tube expansion length controls accurately,
Equipment is easy to carry.
Accompanying drawing explanation
Fig. 1 is the structural representation of U-tube tube expander of the present invention;
Fig. 2 is the rearview of U-tube tube expander of the present invention;
Fig. 3 is that the A-A of U-tube tube expander of the present invention is to sectional view;
Fig. 4 is that the B-B of U-tube tube expander of the present invention is to sectional view;
Fig. 5 is that the C-C of U-tube tube expander of the present invention is to sectional view;.
In figure: 1-U shape pipe fixing device, 2-expander roll, 3-warehouse, 4-motor, 5-the first driven gear,
6-the second driven gear, 7-circular hole, 8-the first driving gear, 9-the second driving gear, 10-expander roll is locked
Device, 11-hexagon socket cap head screw, 12-travel switch, 13-portable shelf.
Detailed description of the invention
The present invention is described further below in conjunction with the accompanying drawings:
Refer to the structural representation that Fig. 1, Fig. 1 are U-tube tube expander of the present invention.
U-tube tube expander, including 1, two expander rolls 2 of U-tube fixing device with for described in driving two
Expander roll 2 driving means that expander roll 2 advanced in unison and synchronization retreat, the end of described expander roll 2 one end is arranged
There is swollen head.By driving two expander roll 2 advanced in unison to realize, U-tube is carried out tube expansion, it is to avoid the most right
When U-tube one end carries out tube expansion, the other end deforms upon.
Refer to Fig. 2 to Fig. 5, Fig. 2 be the rearview of U-tube tube expander of the present invention, Fig. 3 be this
The A of bright U-tube tube expander) A is to the B that sectional view, Fig. 4 are U-tube tube expander of the present invention) B is to section view
Figure, Fig. 5 are the C of U-tube tube expander of the present invention) C is to sectional view.
Described expander roll 2 driving means includes warehouse 3, is provided with motor 4 and two groups of use in described warehouse 3
In the driven gear molectron driving two described expander rolls 2 to advance or retreat respectively, described motor 4 defeated
Shaft is connected by shaft coupling has driving gear, described driven gear molectron to include the first driven gear 5
Coordinate with the second driven gear 6, described first driven gear 5 and described drive gear teeth wheel, described the
One driven gear 5 and described second driven gear 6 gear coordinate, described first driven gear 5 and described
The teeth centre position of the second driven gear 6 all has a U-type groove, described first driven gear 5 with
Described second driven gear 6 engages each other, described first driven gear 5 and described second driven gear 6
On U-type groove form a circular hole 7, described expander roll 2 is through described through hole, described first driven gear 5
With described second driven gear 6 all with described expander roll 2 frictional fit.Expander roll 2 in warehouse 3 by the
Frictional force between one driven gear 5 and the second driven gear 6 moves forward and backward.
Described expander roll driving means also includes driven gear molectron described in two groups, driven gear described in four groups
Molectron is divided into two sets, and correspondence is often overlapped described driven gear molectron and is provided with the first driving gear 8 He
Second driving gear 9, described first driving gear 8 and the second driving gear 9 connected by connecting shaft,
Described driving gear coordinates with described first driving gear 8 gear, often overlaps described driven gear molectron
First driven gear 5 all coordinates with corresponding described second driving gear 9 gear.Driven by arranging four groups
Gear assemblies (being divided into two sets) increases expander roll 2 driving force that advances or retreat, make simultaneously two swollen
Bar 2 moves more smoothly in warehouse 3.
The outside of described second driven gear 6 rotor shaft direction the second driven gear 6 is provided with gate expander roll
Locking device 10, described gate expander roll locking device 10 includes door pillar body and cross girder, and described expander roll is locked
The door pillar body of tight device 10 is fixing with described second driven gear 6 to be connected, described expander roll locking device 10
Cross girder on have the screw being perpendicular to described second driven gear 6 rotor shaft direction, corresponding described screw
It is provided with hexagon socket cap head screw 11.By tightening expander roll locking device 10, the first driven tooth can be made
Wheel 5 and the second driven gear 6 coordinate clamps expander roll 2, increases friction drive.
Described U-tube fixing device 1 include reducing sleeve and sliding sleeve, described reducing sleeve include connecting portion,
Pars intermedia and clamping part, described drill holder jacket casing is contained in outside described swollen head, described connecting portion and described storehouse
Body 3 is fixing to be connected, and described clamping part is split-type chuck, and the external diameter of described pars intermedia is less than described point of lobe
External diameter when formula chuck does not steps up, described sliding sleeve is enclosed within outside described pars intermedia, the fixing dress of described U-tube
Put the 1 sliding sleeve mobile device also including making to slide over slide anteroposterior between pars intermedia and clamping part.By cunning
Set extruding split-type chuck, makes split-type chuck step up U-tube.
Being provided with step surface on described sliding sleeve surface, described sliding sleeve mobile device includes band motion block, described band
Motion block is fixing with described step surface to be connected, and described band motion block is provided with bearing, described warehouse 3 is arranged
Being parallel to the sliding axle of described expander roll 2, described bearing slides on described sliding axle.Band motion block and platform
Being screwed between terrace, the bearing on band motion block slides on sliding axle thus drives sliding sleeve to move,
Indirectly tightened up by sliding sleeve or decontrol split-type chuck.
The travel switch 12 for controlling described expander roll 2 shift motion it is provided with on described expander roll 2.Expander roll
The displacement of 2 is accurately controlled by travel switch 12, indirectly controls to need the length of tube expansion.
Also including gate portable shelf 13, described gate portable shelf 13 includes door pillar body and cross girder, described
The door pillar body of gate hanger is fixing with described warehouse 3 to be connected, and the cross girder of described gate hanger is provided with
Handle.Arranging gate portable shelf 13 is to carry for convenience.
The present invention by split-type collet segment, portable shelf 13, warehouse 3 and Stroke Control part (by row
Cheng Kaiguan 12) composition.
When U-tube is carried out tube expansion, first the two ends of U-tube are respectively put into the split-type chuck of both sides
In, make sliding sleeve move to split-type chuck direction, due to the centre of reducing casing tube by sliding sleeve mobile device
Portion's external diameter does not steps up the external diameter during pipeline of U-tube less than split-type chuck, and moving process passes through sliding sleeve set
On the outer wall of split-type chuck, it is achieved tightening up of split-type chuck, thus the pipeline of fixing U-tube exists
Position in reducing casing tube.The fixation procedure of above-mentioned U-tube, the pipeline that can adjust U-tube enters change
Length in the sleeve pipe of footpath.
U-tube tube expansion step be by motor 4 (cycloid hydraulic motor) input power by shaft coupling transmission to
Drive gear, by driving gear to be delivered to the first driving gear 8, due to the first driving gear 8 and the
Between two driving gears 9 bonded, then by power transmission to the second driving gear 9, the most again by power
It is transferred to the first driven gear 5 of the left and right sides, is delivered to the second driven gear 6, the first driven gear
5 and the mid portion of ratcheting of the second driven gear 6 form a through hole, the size of through hole and expander roll 2
External diameter match, coordinated by the first driven gear 5 and the second driven gear 6 and push down expander roll 2, profit
Drive expander roll 2 to move by its frictional force, promote the swollen head in expander roll 2 end to enter U-tube and carry out tube expansion, root
Use different swollen heads (the thickest interior warp being partly final tube expansion of swollen head) according to the internal diameter wanting tube expansion, pass through
Travel switch 12 controls the stroke of expander roll 2, is accurately controlled the length of U-tube tube expansion, completes tube expansion behaviour
After work, move thimble handle, eliminate the gmatjpdumamics of hydraulic pressure, make it be back to initial bit with hand propelled piston rod
Put.
During whole tube expansion, a motor 4 (cycloid hydraulic motor) pass through with multiple gears,
Reaching two tube expansion advanced in unison or retrogressing, the two ends mouth of pipe of U-tube to carry out tube expansion simultaneously, it is to avoid only
During swollen single pipe, another root of U-tube can be caused to deform;As required can be to during U-tube tube expansion two
The end mouth of pipe selects the swollen head varied in size to realize U-tube two ends mouth of pipe difference tube expansion degree.
Whole equipment arranges gate portable shelf 13, portable shelf 13 is provided with handle and is easy to carry;Also may be used
With arrange on portable shelf 13 link by hanging equipment hook on.
Above-described embodiment is only for clearly demonstrating the invention example, and not to this
The restriction of bright creation detailed description of the invention.For those of ordinary skill in the field, state upper
Can also make other changes in different forms on the basis of bright.Here without also cannot be to all
Embodiment give exhaustive.All extended out within the spirit and principles in the present invention any aobvious and easy
The change seen or variation still in the invention scope of the claims among.