CN107570545A - The main shaft assembly of copper continuous extrusion machine - Google Patents
The main shaft assembly of copper continuous extrusion machine Download PDFInfo
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- CN107570545A CN107570545A CN201710789819.4A CN201710789819A CN107570545A CN 107570545 A CN107570545 A CN 107570545A CN 201710789819 A CN201710789819 A CN 201710789819A CN 107570545 A CN107570545 A CN 107570545A
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- wheel
- extruding wheel
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Abstract
The invention discloses the main shaft assembly of copper continuous extrusion machine, including mandrel, internal axle sleeve, nearside wheel, outboard wheel, outer shaft, bearing, gland, extruding wheel and hydraulic nut, internal axle sleeve and outer shaft are separately mounted to the outside of mandrel, bearing is arranged on the outside of internal axle sleeve and outer shaft, mandrel is provided with axial inlet opening, axial apopore, radial direction inlet opening and radial direction apopore, axial inlet opening is connected with radial direction inlet opening, axial apopore is connected with radial direction apopore, the inner surface of extruding wheel is provided with annular cooling groove, annular gap is formed between the inner surface of extruding wheel and the outer surface of mandrel as cooling-water duct.The present invention is by changing extruding wheel cooling-water duct in main shaft assembly, while controlling extruding wheel groove temperature to slow down the softening of extruding wheel groove high-temperature area extruding wheel, change the Temperature Distribution and stress of extruding wheel, reduce the stress value of the dangerous destruction point of extruding wheel, and then the service life of extruding wheel is improved, reduce equipment operating cost.
Description
Technical field
The present invention relates to the continuously extruded and continuous cladding for being mainly used in copper and copper alloy metal, electric wire row is also used for
The copper continuous extrusion machine of the cable manufacturing of industry, more particularly to a kind of main shaft assembly of copper continuous extrusion machine.
Background technology
Copper continuous extrusion machine operation principle is：Extruding wheel is rotated by motor driven, and copper bar base enters extruding wheel race, due to
The frictional force effect of race cell wall, metallic rod base are drawn in the arc extrusion chamber formed by extruding wheel and cavity, rubbed
Under high pressure and high temperature action caused by power, copper bar base is extruded by mould mouth, and it is female that major product includes copper strap wire, copper round wire, copper
Line, copper bar, copper strips blank and special-shaped copper material etc., due to work when extruding wheel be squeezed power effect while, and due to squeeze
Rubbing action between pinch roller and blank causes extruding wheel groove nearby and extruding wheel outer surface is also in the condition of high temperature, while in order to
Extrusion temperature is controlled, carries out water flowing cooling inside extruding wheel, extruding wheel force-bearing situation is sufficiently complex, is not only squeezed the work of power
With also being acted on by main shaft preload pressure, simultaneously because extruding wheel Temperature Distribution is extremely uneven, can cause huge temperature should
Power, not at that time, extruding wheel after a period of operation, can gradually ftracture temperature control from inner surface exterior surface, when splitting completely
When opening, extruding wheel is scrapped, and this is one of major way that extruding wheel is scrapped, and another major way that extruding wheel is destroyed is extruding
Ditch trough side part is taken turns, due to continuing to work at high temperature, gradually the last edge that occurs of softening comes off（Fall iron）, extruding wheel is continuous squeezes
The main consumable accessory in production process is pressed, its cost accounts for more than the 30% of continuously extruded moulds of industrial equipment totle drilling cost, and therefore, having must
Technical measures are taken to improve the life-span of extruding wheel, reduce production cost.
The content of the invention
It is an object of the invention to provide one kind by changing extruding wheel cooling-water duct in main shaft assembly, in control extruding wheel
While groove temperature slows down the softening of extruding wheel groove high-temperature area extruding wheel, change the Temperature Distribution and stress shape of extruding wheel
State, the stress value of the dangerous destruction point of extruding wheel is reduced, and then improve the service life of extruding wheel, reduce equipment operating cost
The main shaft assembly of copper continuous extrusion machine.
The used to achieve the above object technical scheme of the present invention is：A kind of main shaft assembly of copper continuous extrusion machine, bag
Include mandrel, internal axle sleeve, nearside wheel, outboard wheel, outer shaft, bearing, gland, extruding wheel and hydraulic nut, the internal axle sleeve and outer
Axle sleeve is separately mounted to the outside of mandrel, and the bearing is arranged on the outside of internal axle sleeve and outer shaft, and the nearside wheel is arranged on
On the inside of internal axle sleeve, the outboard wheel is arranged on the inside of outer shaft, and the gland is arranged on the outside of outer shaft, the extruding wheel installation
Between nearside wheel and outboard wheel, the hydraulic nut is arranged on the outside of gland and is connected with mandrel, and the mandrel is provided with
Axial inlet opening, axial apopore, radial direction inlet opening and radial direction apopore, the axial inlet opening are connected with radial direction inlet opening
Logical, the axial apopore is connected with radial direction apopore, and the inner surface of the extruding wheel is provided with annular cooling groove, described
The outer surface of extruding wheel is provided with drive wheel groove, and the distance of the driving channel bottom to annular cooling channel bottom is driving wheel
The width dimensions of groove are added between 0 millimeter to 68 millimeters.
Annular gap is formed between the inner surface of the extruding wheel and the outer surface of mandrel as cooling-water duct.
Cooling water flow to the inner surface of extruding wheel by the axial inlet opening on mandrel and radial direction inlet opening, passes through annular
Gap flows through the inner surface and annular cooling groove thereon of extruding wheel, then passes through the radial direction apopore on mandrel and axial water outlet
Hole is flowed out, and completes the cooling procedure to whole main shaft assembly.
The axial inlet opening is connected by radial direction inlet opening with the inner surface of outer shaft, and the axial apopore passes through footpath
Connected to apopore with the inner surface of internal axle sleeve.
The both sides end face of the extruding wheel is provided with annular stopper, size and nearside wheel and the outboard wheel of the annular stopper
On annular boss size cooperate.
The annular stopper is inner stopper or male half coupling.
A kind of main shaft assembly of copper continuous extrusion machine of the present invention, by changing extruding wheel cooling-water duct in main shaft assembly,
While controlling extruding wheel groove temperature to slow down the softening of extruding wheel groove high-temperature area extruding wheel, change the temperature point of extruding wheel
Cloth and stress, the stress value of the dangerous destruction point of extruding wheel is reduced, and then improve the service life of extruding wheel, reduce equipment
Operating cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the main shaft assembly of copper continuous extrusion machine of the present invention.
Fig. 2 is a kind of extruding wheel structural representation one of the main shaft assembly of copper continuous extrusion machine of the present invention.
Fig. 3 is a kind of extruding wheel structural representation two of the main shaft assembly of copper continuous extrusion machine of the present invention.
In figure：1st, mandrel；2nd, internal axle sleeve；3rd, nearside wheel；4th, annular cooling groove；5th, outboard wheel；6th, outer shaft；7th, axle
Hold；8th, gland；9th, extruding wheel；10th, hydraulic nut；11st, axial apopore；12nd, axial inlet opening；13rd, radial direction inlet opening；14、
Annular gap；15th, drive wheel groove；16th, radial direction apopore；17th, annular stopper；18th, the inner surface of extruding wheel.
Embodiment
As shown in Figure 1 to Figure 3, the main shaft assembly of copper continuous extrusion machine, including mandrel 1, internal axle sleeve 2, nearside wheel 3, outside
Wheel 5, outer shaft 6, bearing 7, gland 8, extruding wheel 9 and hydraulic nut 10, internal axle sleeve 2 and outer shaft 6 are separately mounted to mandrel 1
Outside, bearing 7 are arranged on the outside of internal axle sleeve 2 and outer shaft 6, and nearside wheel 3 is arranged on the inner side of internal axle sleeve 2, and outboard wheel 5 is arranged on
The inner side of outer shaft 6, gland 8 are arranged on the outside of outer shaft 6, and extruding wheel 9 is arranged between nearside wheel 3 and outboard wheel 5, hydraulic nut
10 are arranged on the outside of gland 8 and are connected with mandrel 1 by screw thread pair, and mandrel 1 is provided with axial inlet opening 12, axial apopore
11st, radial direction inlet opening 13 and radial direction apopore 16, axial inlet opening 12 are connected with radial direction inlet opening 13, axial apopore 11 with
Radial direction apopore 16 is connected, and the inner surface of extruding wheel 9 is provided with annular cooling groove 4, the inner surface of extruding wheel and mandrel
Annular gap 14 is formed between outer surface and is used as cooling-water duct, cooling water enters by the axial inlet opening 12 on mandrel and radially
Water hole 13 flow to the inner surface 18 of extruding wheel, has annular gap 14 between the inner surface 18 of extruding wheel and the outer surface of mandrel 1
As flow of cooling water passage, cooling water flows through the inner surface and the groove 4 of annular cooling thereon of extruding wheel by annular gap 14,
Flowed out, completed to the cooled of whole main shaft assembly by the axial apopore on the radial direction apopore and mandrel on mandrel again
Journey, extruding wheel 9 are hot-work die steel making, by quenching and precision optical machinery processing being carried out after tempering heat treatment so that extruding
Wheel physical dimension reaches design requirement, has an annular cooling groove 4 in the inner surface 18 of extruding wheel 9, in the outer surface of extruding wheel
There is a drive wheel groove 15, the position of annular cooling groove drives the lower section of groove in extruding wheel outer surface, and its bottom is preferred
Circular arc, the minimum distance H of the bottom land of drive wheel groove 15 to the annular cooling bottom land of groove 4 add in the width dimensions B of drive wheel groove
Between 0mm to 68mm, i.e. in the range of H=B+ (0~68) millimeter, the width dimensions C of annular cooling groove 4 makes for the ease of processing
Make, stock size C is more than 10mm, and annular cooling trench geometry is without specifically limited, typically with stress concentration coefficient and appearance
Easy processing manufacture is defined, and the width C of extruding wheel inner surface annular cooling groove generally should be smaller than the 1/2 of extruding wheel wheel face width,
On the one hand the temperature of extruding wheel annular cooling groove can be effectively controlled, on the other hand, it is ensured that extruding wheel inner surface is with passing
Dynamic key（Pin）Effective contact area, ensure key（Pin）It is enough with the contact area of axle, to ensure to transmit the needs of moment of torsion, extruding
Taking turns inner surface annular rooved face should be smooth, to reduce stress concentration, in the position that the radius of inner surface 18 of extruding wheel is outside, is squeezing
Respectively there are an annular stopper 17, the size of the annular stopper 17 and the size platform phase of the annular boss on side wheel in pinch roller both sides end face
Mutually coordinating, play a part of extruding wheel installation positioning and bear radial load, the annular stopper in extruding wheel can be inner stopper,
It can also be male half coupling, the being accurately positioned when effect of seam is for installing extruding wheel and bear part radial load, extrude
Driving key can be carried between wheel 9 and mandrel 1 or trundle is used for transmitting moment of torsion, can also be by between extruding wheel and side wheel
End face pin transmits moment of torsion, by the oil-filled hole of hydraulic nut oil-filled to hydraulic nut 10, reaches main shaft assembly design requirement
After pretightning force, main shaft assembly is kept to pass through axial pre tightening force caused by hydraulic nut, hydraulic nut with hydraulic nut separation pad
After the completion of pressurising, the under tension of mandrel 1, gland 8, outer shaft 6, outboard wheel 5, nearside wheel 3, extruding wheel 9, internal axle sleeve 2 are pressed
Friction is produced on all end faces to contact with each other such as the contact face and side wheel of power, axle sleeve and side wheel and the contact face of extruding wheel
Power, maximal friction are that pretightning force is multiplied by coefficient of friction, the moment of torsion required for extruder, are passed sequentially through as described above by mandrel
Frictional force, to transmit moment of torsion and bear in the extruding wheel course of work suffered radial load, in extruding wheel and exterior and interior axle sleeves
Between increase side wheel, primarily to reducing use cost, side wheel and axle sleeve can be manufactured into a part, cooling water leads to
Road, there is an inlet opening to have a backwater hole on mandrel, there is radial hole to be interconnected with two axial holes in axle sleeve position, its
The big axial hole of hole depth connects with the axle sleeve inner surface of spindle drive side on middle mandrel, the small hole of depth and hydraulic nut side
Axle sleeve inner surface connects, and considers the influence of cooling effect of influence and axial hole of the water inlet with backwater temperature difference to axle sleeve, typically handle
Axial deep hole is cold to keep the cooling even results of exterior and interior axle sleeves consistent as far as possible as backwater hole as inlet opening, axial shallow bore hole
But water is to supply enough cooling water using water pump, keeps certain water pressure and flow and controls coolant water temperature, when using straight
When footpath is 400 millimeters of extruding wheels, extruding wheel drive wheel groove width B is 20.8mm, and annular groove, annular groove bottom land are carried in extruding wheel
Minimum distance H to drive wheel groove bottom land is 35mm, and groove width C is 36mm, continuously extruded in TLJ400 using above-mentioned main shaft assembly
Copper busbar product is produced on machine, extruding wheel average life span brings up to 187 tons from original 118 tons, improves 58%, has notable
Economic benefit；When using a diameter of 630 millimeters of extruding wheels, extruding wheel drive wheel groove width B is 30.8mm, band in extruding wheel
There is annular groove, the minimum distance H of annular groove bottom land to drive wheel groove bottom land is 63.5mm, and groove width C is 30mm, using above-mentioned main shaft
Assembly produces copper busbar product on TLJ630 continuous extruders, and extruding wheel average life span brings up to 347 from original 206 tons
Ton, improves 68%, has significant economic benefit, the main shaft assembly of copper continuous extrusion machine of the present invention, by changing main shaft assembly
Middle extruding wheel cooling-water duct, slow down the same of extruding wheel groove high-temperature area extruding wheel softening in control extruding wheel groove temperature
When, change the Temperature Distribution and stress of extruding wheel, reduce the stress value of the dangerous destruction point of extruding wheel, and then improve extruding
The service life of wheel, reduce equipment operating cost.
Claims (6)
1. a kind of main shaft assembly of copper continuous extrusion machine, including mandrel, internal axle sleeve, nearside wheel, outboard wheel, outer shaft, bearing, pressure
Set, extruding wheel and hydraulic nut, the internal axle sleeve and outer shaft are separately mounted to the outside of mandrel, and the bearing is arranged on interior axle
The outside of set and outer shaft, the nearside wheel are arranged on the inside of internal axle sleeve, and the outboard wheel is arranged on the inside of outer shaft, the pressure
Set is arranged on the outside of outer shaft, and the extruding wheel is arranged between nearside wheel and outboard wheel, and the hydraulic nut is arranged on gland
Outside and be connected with mandrel, the mandrel is provided with axial inlet opening, axial apopore, radial direction inlet opening and radial direction water outlet
Hole, the axial inlet opening are connected with radial direction inlet opening, and the axial apopore is connected with radial direction apopore, and its feature exists
In：The inner surface of the extruding wheel is provided with annular cooling groove, and the outer surface of the extruding wheel is provided with drive wheel groove, described
Drive channel bottom to annular cooling channel bottom distance for drive wheel groove width dimensions add 0 millimeter to 68 millimeters it
Between.
A kind of 2. main shaft assembly of copper continuous extrusion machine according to claim 1, it is characterised in that：The extruding wheel it is interior
Annular gap is formed between surface and the outer surface of mandrel as cooling-water duct.
A kind of 3. main shaft assembly of copper continuous extrusion machine according to claim 2, it is characterised in that：Cooling water passes through mandrel
On axial inlet opening and radial direction inlet opening flow to the inner surface of extruding wheel, the inner surface of extruding wheel is flowed through by annular gap
And annular cooling groove thereon, then flowed out by the radial direction apopore on mandrel and axial apopore, complete to whole main shaft
The cooling procedure of assembly.
A kind of 4. main shaft assembly of copper continuous extrusion machine according to claim 1, it is characterised in that：The axial inlet opening
Connected by radial direction inlet opening with the inner surface of outer shaft, the axial apopore passes through radial direction apopore and the interior table of internal axle sleeve
Face connects.
A kind of 5. main shaft assembly of copper continuous extrusion machine according to claim 1, it is characterised in that：The two of the extruding wheel
Side end face is provided with annular stopper, and the size of the annular stopper and the size of the annular boss on nearside wheel and outboard wheel are mutual
Coordinate.
A kind of 6. main shaft assembly of copper continuous extrusion machine according to claim 5, it is characterised in that：The annular stopper is
Inner stopper or male half coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789819.4A CN107570545A (en) | 2017-09-05 | 2017-09-05 | The main shaft assembly of copper continuous extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789819.4A CN107570545A (en) | 2017-09-05 | 2017-09-05 | The main shaft assembly of copper continuous extrusion machine |
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| Publication Number | Publication Date |
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| CN107570545A true CN107570545A (en) | 2018-01-12 |
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ID=61030590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710789819.4A Pending CN107570545A (en) | 2017-09-05 | 2017-09-05 | The main shaft assembly of copper continuous extrusion machine |
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| Country | Link |
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| CN (1) | CN107570545A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097732A (en) * | 2018-01-18 | 2018-06-01 | 大连康丰科技有限公司 | A kind of continuous extruder with cooling device outside extruding wheel |
| CN110000232A (en) * | 2019-05-07 | 2019-07-12 | 大连康丰科技有限公司 | A kind of continuous extruder |
| CN110000233A (en) * | 2019-05-07 | 2019-07-12 | 大连康丰科技有限公司 | A kind of extruding wheel of continuous extruder |
| CN113847269A (en) * | 2021-08-19 | 2021-12-28 | 鑫磊压缩机股份有限公司 | Stator impeller of magnetic suspension axial flow fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5687604A (en) * | 1996-05-30 | 1997-11-18 | Exco Technologies Ltd. | Thermal controlled mandrel with replaceable tip for copper and brass extrusion |
| WO2011034290A2 (en) * | 2009-09-17 | 2011-03-24 | 한국기계연구원 | Cooling apparatus and cooling method for an indirect extruder |
| CN103894437A (en) * | 2014-04-17 | 2014-07-02 | 大连康丰科技有限公司 | Spindle system of continuous extruder and continuous coater |
| CN206028674U (en) * | 2016-09-14 | 2017-03-22 | 云南锡业锡材有限公司 | Crowded equipment extrusion device of casting in succession of cooling system is strengthened in area |
| CN106694595A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Aluminum section bar equal-temperature extrusion system and extrusion method thereof |
-
2017
- 2017-09-05 CN CN201710789819.4A patent/CN107570545A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5687604A (en) * | 1996-05-30 | 1997-11-18 | Exco Technologies Ltd. | Thermal controlled mandrel with replaceable tip for copper and brass extrusion |
| WO2011034290A2 (en) * | 2009-09-17 | 2011-03-24 | 한국기계연구원 | Cooling apparatus and cooling method for an indirect extruder |
| CN103894437A (en) * | 2014-04-17 | 2014-07-02 | 大连康丰科技有限公司 | Spindle system of continuous extruder and continuous coater |
| CN206028674U (en) * | 2016-09-14 | 2017-03-22 | 云南锡业锡材有限公司 | Crowded equipment extrusion device of casting in succession of cooling system is strengthened in area |
| CN106694595A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Aluminum section bar equal-temperature extrusion system and extrusion method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097732A (en) * | 2018-01-18 | 2018-06-01 | 大连康丰科技有限公司 | A kind of continuous extruder with cooling device outside extruding wheel |
| CN110000232A (en) * | 2019-05-07 | 2019-07-12 | 大连康丰科技有限公司 | A kind of continuous extruder |
| CN110000233A (en) * | 2019-05-07 | 2019-07-12 | 大连康丰科技有限公司 | A kind of extruding wheel of continuous extruder |
| CN113847269A (en) * | 2021-08-19 | 2021-12-28 | 鑫磊压缩机股份有限公司 | Stator impeller of magnetic suspension axial flow fan |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
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| RJ01 | Rejection of invention patent application after publication |