CN208840480U - A kind of bimetal metallurgy combination composite seamless pipe pipe process units - Google Patents

Abstract

The utility model belongs to multiple tube production equipment technology, more particularly to a kind of bimetal metallurgy combination composite seamless pipe pipe process units, a kind of bimetal metallurgy combination composite seamless pipe pipe process units, comprising: rotating device, preheating lifting platform and electroslag furnace lifting platform；Outer layer hollow material is heated by preheating lifting platform comprising preheating device and lifting device, the preheating device are arranged on lifting device, preheating device can be driven to vertically move by lifting device；The rotation of outer hollow material is driven by rotating device, is located at the lower section of preheating device；Drive core bar mobile by electroslag furnace lifting platform, it protrudes into outer hollow material comprising lifting platform and clamping device, the clamping device are arranged on lifting platform, clamping device can be driven to vertically move by lifting platform, the clamping device is located at the top of preheating device.The device can heat outer layer hollow material, and core bar can be made to protrude into outer hollow material.

Description

A kind of bimetal metallurgy combination composite seamless pipe pipe process units

Technical field

The utility model belongs to multiple tube production equipment technology, and in particular to a kind of bimetal metallurgy combines compound nothing Slit-tube pipe process units.

Background technique

Engineering steel pipe had not only required the high comprehensive performances such as the mechanical-physical chemistry of material but also had wished the service life of material It is long, it is cheap.Although can be improved or improve certain spy of material by the Metallurgical Means such as addition alloying element and heat treatment Property, but add expensive and rare alloying element is not always able to obtain required ideal performance.With metal material The further development of processing technology, composite bimetal pipe come into being.

Common production method has mechanical composite algorithm, centrifugal casting.The multiple tube of mechanical composite algorithm production department uses the longevity It orders short, is easily damaged by corrosion, centrifugal casting can guarantee the intensity of pipeline, but its maximum disadvantage is exactly to need to pipe Surface is machined, and which adds the wall unevennesses of double layer of metal, also because casting when liquid metal mutually wash away and Mix will form transition zone.Complex procedures, low efficiency, lumber recovery are low, at high cost

Therefore, applicant provide a kind of bimetal metallurgy combination composite seamless pipe pipe production technologies, by outer hollow Material and core bar are formed through casting method complies with standard circular pipe blank, is then carrying out following process.This production technology needs Guarantee that the concentricity of outer hollow material and core bar needs core bar to protrude into outer hollow material in process It is interior, and outer layer hollow material is heated, while being ensured that it is evenly heated.However in the prior art, but lack Corresponding production equipment, it is therefore necessary to which this is improved.

Utility model content

In view of the above technical problems, the utility model provides a kind of bimetal metallurgy combination composite seamless pipe pipe production Device, which can heat outer layer hollow material, and core bar can be made to protrude into outer hollow material.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:

A kind of bimetal metallurgy combination composite seamless pipe pipe process units, comprising: rotating device, preheating lifting platform and electricity Slag hearth lifting platform；

Outer layer hollow material is heated by preheating lifting platform comprising preheating device and lifting device, it is described pre- Thermal is arranged on lifting device, preheating device can be driven to vertically move by lifting device；

The rotation of outer hollow material is driven by rotating device, is located at the lower section of preheating device；

It drives core bar mobile by electroslag furnace lifting platform, protrudes into outer hollow material comprising lifting platform and folder Device is held, the clamping device is arranged on lifting platform, clamping device can be driven to vertically move by lifting platform, the clamping dress Setting in the top of preheating device.

The lifting device includes the first column, the first elevating mechanism, the sliding case of the first lifting, and described first, which goes up and down sliding case, sets It sets on the first column, first elevating mechanism goes up and down sliding case with first and couples, and drives first liter by the first elevating mechanism Sliding case is dropped to move along the first column, the preheating device goes up and down sliding case with first by swing arm and couples, and the two of the swing arm It is hinged that end goes up and down sliding case with preheating device and first respectively；It further include limit pull rod, the both ends of the limit pull rod are respectively with The sliding case of one lifting and preheating device are hinged, and the limit pull rod is retractable structure.

The limit pull rod includes the first interior bar and the first outer bar, and first interior bar is slidably connected with the first outer bar, institute The first outer bar is stated equipped with limited screw.

The lifting platform includes the second column, the sliding case of the second lifting, and the clamping device includes hitch feed device in The heart adjusts support frame, and described second, which goes up and down sliding case, is arranged on the second column, and can move along the second column, the hitch feed Device setting is gone up and down on sliding case second, and the center adjustment support frame couples with the second column and is located at hitch feed device Lower section can be clamped by hitch feed device and drive core bar mobile, play supporting-core by center adjustment support frame The effect of portion's bar.

The center adjustment support frame includes fixed ring and shift(ing) ring, and the fixed ring is arranged on the second column, described One end of shift(ing) ring and one end of fixed ring are hinged, and the other end of shift(ing) ring detachably couples with the other end of fixed ring, described Resilient support is equipped in fixed ring and shift(ing) ring.

The resilient support includes telescopic rod and idler wheel, and the idler wheel couples with telescopic rod rotation.

The hitch feed device includes connection frame, rotatable support wheel group and pinch wheels, the connection frame and second Sliding case connection is gone up and down, the support wheel group is arranged on connection frame, and the connection frame is hinged with clamp arm, the pinch wheels setting On clamp arm and opposite with support wheel group, the clamp arm is hinged with thrust mechanism, can push clamping by thrust mechanism Arm rotation.

The utility model compared with prior art, has the beneficial effect that

Laterally walk on stage relative to pedestal can transverse shifting, longitudinally walk on stage setting on laterally walking on stage, longitudinally walk on stage relative to It laterally walks on stage longitudinally movable, and turntable setting is on longitudinally walking on stage.When operation, outer hollow material is placed in the bracket of turntable On, the rotation for realizing outer hollow material and bracket is rotated by turntable, guarantees to be evenly heated；By laterally walking on stage, longitudinal direction is walked Fine tuning laterally, longitudinal may be implemented in the movement of platform, guarantees the concentricity of outer hollow material and core bar.

Preheating device is located at outside outer hollow material, can drive the sliding case of the first lifting and pre- hot charging by the first elevating mechanism It sets and is moved along the first column, to realize axial movement of the preheating device relative to outer hollow material, realize vertical heating, protect Card later period process is normally carried out.Sliding case is gone up and down with first respectively for the both ends of limit pull rod and preheating device is hinged, limit pull rod For retractable structure, by changing the length of limit pull rod, to adjust the relative position of preheating device Yu outer hollow material.

Second, which goes up and down sliding case, is arranged on the second column, and second, which goes up and down sliding case, can drive hitch feed device along the second column It is mobile, it can be clamped by hitch feed device and drive core bar mobile, core bar passes through center in moving process It adjusts support frame to be supported, guarantees that it is steady mobile, avoid colliding with outer hollow material.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the production process schematic diagram of the utility model；

Fig. 3 is the main view of rotating device；

Fig. 4 is the side view of rotating device；

Fig. 5 is the structural schematic diagram of rotating device；

Fig. 6 is the usage state diagram of rotating device；

Fig. 7 is the main view for preheating lifting platform；

Fig. 8 is the top view for preheating lifting platform；

Fig. 9 is the perspective view for preheating lifting platform；

Figure 10 is the usage state diagram for preheating lifting platform；

Figure 11 is the structural schematic diagram of the utility model limit pull rod；

Figure 12 is the overall structure diagram one of electroslag furnace lifting platform；

Figure 13 is the overall structure diagram two of electroslag furnace lifting platform；

Figure 14 is the structural schematic diagram of center adjustment support frame；

Figure 15 is the structural schematic diagram one of hitch feed device；

Figure 16 is the top view of hitch feed device；

Figure 17 is the structural schematic diagram two of hitch feed device；

Figure 18 is the structural schematic diagram of resilient support；

Wherein: 10 be rotating device, and 20 be preheating lifting platform, and 30 be electroslag furnace lifting platform；

1 is pedestal, and 2 is laterally walk on stage, and 3 walk on stage to be longitudinal, and 4 be turntable, and 5 be bracket, and 6 be the first driving mechanism, and 61 are First gear, 62 be the first rack gear, and 63 be first reducing motors, and 7 be the second driving mechanism, and 71 be second gear, and 72 be second Rack gear, 73 be second reducing motors, and 8 be groove, and 9 be bearing, and 10 be cross track, and 11 be long rails, and 12 be lateral sheave, 13 be longitudinal sheave, and 14 be decelerating motor, and 15 be driving cog；

201 be the first column, and 202 be the first elevating mechanism, and 2021 be the first lead screw, and 2022 be the first nut, and 2023 are First reducing motors, 203 go up and down sliding case for first, and 204 be preheating device, and 205 be swing arm, and 206 be limit pull rod, and 2061 are First interior bar, 2062 be the first outer bar, and 2063 be limited screw；

301 be the second column, and 302 go up and down sliding case for second, and 303 be hitch feed device, and 3031 be connection frame, and 3032 are Support wheel group, 3033 be pinch wheels, and 3034 be clamp arm, and 3035 be thrust mechanism, support frame is adjusted centered on 304,3041 are Fixed ring, 3042 be shift(ing) ring, and 3043 be resilient support, and 30431 be telescopic rod, and 30432 be idler wheel, and 305 be the second ball wire Thick stick elevating mechanism.

Specific embodiment

The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this reality With novel protected range.

As illustrated in fig. 1 and 2, a kind of bimetal metallurgy combination composite seamless pipe pipe process units, comprising: rotating device 10, lifting platform 20 and electroslag furnace lifting platform 30 are preheated；Outer layer hollow material is heated by preheating lifting platform 20 comprising Preheating device 204 and lifting device, preheating device 204 are arranged on lifting device, can drive preheating device by lifting device 204 longitudinal movements；The rotation of outer hollow material is driven by rotating device 10, is located at the lower section of preheating device 204；Pass through electricity Slag hearth lifting platform 30 drives core bar mobile, protrudes into outer hollow material comprising lifting platform and clamping device, clamping dress It installs on lifting platform, clamping device can be driven to vertically move by lifting platform, clamping device is located at the upper of preheating device 204 Side.

Outer hollow material is placed on rotating device 10, outer layer hollow material is carried out by preheating device 204 pre- Heat is put into slag charge in outer layer hollow material, and carries out heating and melting (energization starting the arc thawing) to slag charge；Core bar is to moving down It is dynamic, it protrudes into outer hollow material, is heated thawing；After inner layer material thawing, cooling, following process is carried out.

As shown in Fig. 3 to 6, rotating device include pedestal 1, laterally walk on stage 2 and it is longitudinal walk on stage 3,2 settings of laterally walking on stage are the bottom of at On seat 1, laterally walk on stage 2 relative to pedestal 1 can transverse shifting, 3 settings of longitudinally walking on stage laterally are walking on stage on 2, longitudinally walk on stage 3 opposite 2 longitudinally movable in laterally walking on stage, longitudinally walking on stage 3 is equipped with rotatable turntable 4, and turntable 4 is equipped with bracket 5.

In use, outer hollow material 17 is placed on bracket 5, ring shaped heating mechanism is arranged with outside outer hollow material 17 16, drive bracket 5 and outer hollow material 17 to rotate by turntable 4, so that outer hollow material 17 is evenly heated；When outer layer sky The axis of the axis of core material 17 and core bar 18 can pass through 2 transverse shifting and vertical of laterally walking on stage there are when deviation To walk on stage 3 longitudinal movement realize turntable 4, bracket 5, outer hollow material 17 movement, to adjust outer hollow material 17 With the concentricity of core bar 18.

It can realize that laterally walk on stage 2 can transverse shifting, longitudinal 3 phases of walking on stage relative to pedestal 1 by setting cylinder etc. structures It is 2 longitudinally movable for laterally walking on stage.Such as: lateral cylinder, the cylinder body and pedestal 1 of lateral cylinder can be set on pedestal 1 It connects, the piston rod of lateral cylinder 2 couples with laterally walking on stage, and laterally walking on stage 2 is slidably connected that (pedestal 1 is equipped with corresponding with pedestal 1 Cross track 10), 2 are laterally walked on stage along the sliding of pedestal 1 by the flexible drive of piston rod；It can be vertical in setting on 2 of laterally walking on stage To oil cylinder, the cylinder body of longitudinal oil cylinder 2 couples with laterally walking on stage, and the piston rod of longitudinal oil cylinder 3 couples with longitudinally walking on stage, and longitudinally walks on stage It 32 is slidably connected (laterally walk on stage 2 be equipped with corresponding long rails 11) with laterally walking on stage, passes through stretching for longitudinal cylinder piston rod Contracting drive it is longitudinal walk on stage 3 transversely walk on stage it is 2 mobile.

Certainly, it also can be used: being equipped on pedestal 1 and laterally walked on stage 2 the first driving mechanisms 6 coupled, laterally walked on stage on 2 Equipped with longitudinal 3 the second driving mechanisms 7 coupled of walking on stage；First driving mechanism 6 and the second driving mechanism 7 are all made of rack-and-pinion Mechanism.Specifically, the first driving mechanism 6 includes first gear 61, the first rack gear 62 and first reducing motors 63, the first deceleration electricity The output shaft of machine 63 couples with first gear 61, and the shell of first reducing motors 63 is fixed on pedestal 1, the setting of the first rack gear 62 It is laterally walking on stage on 2, first gear 61 engage with the first rack gear 62, and the rotation realization transverse direction for passing through first gear 61 is walked on stage 2 edges The movement of cross track 10；Second driving mechanism 7 include second gear 71, the second rack gear 72 and second reducing motors 73, second The output shaft of decelerating motor 73 couples with second gear 71, and the shell of second reducing motors 73, which is fixed on, laterally walks on stage on 2, and second The setting of rack gear 72 is longitudinally being walked on stage on 3, and second gear 71 engage with the second rack gear 72, is indulged by the rotation realization of second gear 71 Movement to 3 tracks 11 along longitudinal direction of walking on stage.

Further, couple for convenience, 5 upper end of bracket is equipped with groove 8, and outer hollow material 17 can be placed in the groove 8 It is interior.

In order to reduce frictional force, laterally walk on stage 2 couple with the rolling of pedestal 1, and longitudinally walk on stage 3 couples with transverse direction 2 rollings of walking on stage. Specific: in the lateral sheave 12 for being equipped on 2 and couple with cross track 10 of laterally walking on stage, lateral sheave 12 is walked on stage 2 turns with transverse direction Dynamic connection, lateral sheave 12 are arranged four；In the longitudinal sheave 13 for being equipped on 3 and couple with long rails 11 of longitudinally walking on stage, longitudinally Sheave 13 couples with longitudinal 3 rotations of walking on stage, and longitudinal sheave 13 is arranged four.

Turntable 43 is coupled by bearing 9 with longitudinally walking on stage.Bearing 9 can be used plane bearing, seat ring and it is longitudinal walk on stage it is 3 solid Fixed connection, blowout patche couple with turntable 4.Turntable 4 is provided with external tooth, and external tooth connection has driving cog 15, the wheel of driving cog 15 and deceleration The output shaft of motor 14 couples, and the shell of decelerating motor 14 3 couples with longitudinal walk on stage, and passes through the driving cog 15 and turntable 4 of rotation Outer tooth engagement realizes the rotation of turntable 4.

As shown in Fig. 7 to 11, lifting platform is preheated, including the first column 201, the first elevating mechanism 202, first go up and down sliding case 203 and preheating device 204, first, which goes up and down sliding case 203, is arranged on the first column 201, and first goes up and down sliding case 203 and the first column 201 are slidably connected.First elevating mechanism 202 goes up and down sliding case 203 with first and couples, and drives first by the first elevating mechanism 202 Sliding case 203 is gone up and down to move along the first column 201.Preheating device 204 goes up and down sliding case 203 with first by swing arm 205 and couples, and puts It is hinged that the both ends of swing arm 205 go up and down sliding case 203 with preheating device 204 and first respectively；It further include limit pull rod 206, limit is drawn Sliding case 203 is gone up and down with first respectively for the both ends of bar 206 and preheating device 204 is hinged, and limit pull rod 206 is retractable structure.It is logical The length for changing limit pull rod 206 is crossed, to adjust the angle between preheating device 204 and swing arm 205, realizes preheating device 204 fine tuning.

Preheating device 204 primarily serves heat effect, can be added using electric heating ring in the prior art or intermediate frequency Hot device, it is preferred to use intermediate frequency heater.

In use, the length of adjustment limit pull rod 206, corresponds to outer layer for the induction coil for heating ring or intermediate frequency heater The center of hollow material.Then outer hollow material is placed, starts preheating device 204, by preheating device 204 to outer layer Hollow material is heated；It drives first to go up and down sliding case 203 and preheating device 204 by the first elevating mechanism 202 to stand along first Column 201 is mobile, heats to realize to the axial direction of outer layer hollow material.

Common Telescopic rod structure can be used in limit pull rod 206 comprising the first interior bar 2061 and the first outer bar 2062, the One interior bar 2061 is slidably connected with the first outer bar 2062, and the first outer bar 2062 is set in outside the first interior bar 2061.Specifically, first One end of interior bar 2061 goes up and down sliding case 203 hingedly with first, and one end of the first outer bar 2062 and preheating device 204 are hinged.

The connection of first outer bar 2062 has a limited screw 2063, and is equipped with corresponding tapped through hole, and limited screw 2063 can be with It offsets across the tapped through hole and the first interior bar 2061.When adjusting, limited screw 2063 is unscrewed, adjusts stretching for the first outer bar 2062 Length out after adjusting, screws limited screw 2063 and is fixed.

First elevating mechanism, 202 main function is to drive first to go up and down sliding case 203 to move up and down along the first column 201, because This its can use the first elevating mechanism of worm and gear, linear motor or other appropriate institutions in the prior art.It is preferably Using the first screw-threaded shaft elevator of ball, the specific structure of the first screw-threaded shaft elevator of ball is as it is known to those skilled in the art that event It is briefly described, is made of the first lead screw 2021, the first nut 2022 and first reducing motors 2023, the first lead screw herein The rotation of 2021 both ends and the first column 201 couple, the first nut 2022 be fixed on the first lifting cunning case 203 and with first Thick stick 2021 couples, and the first lead screw 2021 couples with the output shaft of first reducing motors 2023, the shell of first reducing motors 2023 It is fixedly connected with the first column 201, first reducing motors 2023 can drive the first lead screw 2021 to rotate, to realize first liter Sliding the moving along the first column 201 of case 203 is dropped.

As shown in Figure 12 to 18, electroslag furnace lifting platform, including the second column 301, second go up and down sliding case 302, hitch feed Device 303 and center adjustment support frame 304, second, which goes up and down sliding case 302, is arranged on the second column 301, and can be along the second column 301 is mobile.It can realize that second goes up and down sliding the moving along the second column 301 of case 302 by a variety of devices, such as: can be by the Two ball screw type elevator structures 305 realize that second goes up and down sliding case 302 is slidably connected with the second column 301, the both ends of lead screw and the The rotation connection of two columns 301, one end of lead screw couple with the output shaft of motor (decelerating motor), the shell of motor and the second column 301 are fixedly connected；Nut is fixed on the sliding case 302 of the second lifting, and is coupled with lead screw, can drive spiral shell by the rotation of screw rod The female and sliding case 302 of the second lifting is mobile.Certainly, the mechanisms such as linear motor also can be used and realize its movement, specific structure can basis Actual conditions are adjusted and design.

The setting of hitch feed device 303 is gone up and down on sliding case 302 second, center adjustment support frame 304 and the second column 301 The lower section for coupling and being located at hitch feed device 303 can be clamped by hitch feed device 303 and core bar is driven to move It is dynamic, play the role of supporting core bar by center adjustment support frame 304.

In use, clamping by the one end of hitch feed device 303 to core bar, support frame is adjusted to core by center The lower support of portion's bar；Second, which goes up and down sliding case 302, drives hitch feed device 303 and core bar to move integrally, and makes core Bar protrudes into the outer hollow material of lower section, drives core bar mobile by hitch feed device 303, protrudes into its whole In outer hollow material.

Center adjustment support frame 304 primarily serves supporting role, guarantees that core bar runs smoothly in folding process.Its Fixed ring 3041 and shift(ing) ring 3042 are specifically included, fixed ring 3041 is fixed on the second column 301, one end of shift(ing) ring 3042 Hinged with one end of fixed ring 3041, the other end of shift(ing) ring 3042 detachably couples (bolt with the other end of fixed ring 3041 Connection), complete circular ring structure can be formed after fixed ring 3041 and shift(ing) ring 3042 connect.

When connection, the other end of shift(ing) ring 3042 is separated to the other end of fixed ring 3041 and is opened shift(ing) ring 3042, Core bar is placed in shift(ing) ring 3042 and fixed ring 3041, then by the other end of shift(ing) ring 3042 and fixed ring 3041 Other end connection, forms complete circular ring structure and is set in outside core bar after connection.In fixed ring 3041 and shift(ing) ring 3042 It is equipped with resilient support 3043, resilient support 3043 and core bar contact connection.The particular number of resilient support 3043 can be with It adjusts according to the actual situation, is preferably provided with four, and be evenly distributed along circular configuration.

Resilient support 3043 includes telescopic rod 30431 and idler wheel 30432, and idler wheel 30432 and the rotation of telescopic rod 30431 join It connects.Telescopic rod 30431 is using structure in the prior art, such as: spring lever (it is made of interior bar, outer bar and spring), gas bullet Spring or similar structures, one end and the fixed ring 3041 or shift(ing) ring 3042 of telescopic rod 30431 are fixedly connected, idler wheel 30432 with The other end of telescopic rod 30431 rotates connection.After connection, idler wheel 30432 and core bar contact connection can by core bar Compression telescopic rod 30431 makes it generate reaction force, realizes the effect of elastic clamping.

Hitch feed device 303 includes connection frame 3031, rotatable support wheel group 3032 and pinch wheels 3033, connection frame 3031, which go up and down sliding case 302 with second, couples, and support wheel group 3032 is arranged on connection frame 3031, and connection frame 3031 is hinged with clamping Arm 3034, pinch wheels 3033 are arranged on clamp arm 3034 and, pinch wheels 3033 and clamp arm opposite with support wheel group 3032 3034 rotation connections, clamp arm 3034 are hinged with thrust mechanism 3035, can push clamp arm 3034 by thrust mechanism 3035 Rotation, to realize folding.

When core bar is installed, pushes clamp arm 3034 to rotate by thrust mechanism 3035, realize and open, by core bar It is placed between support wheel group 3032 and pinch wheels 3033；Reversely clamp arm 3034 is pushed to rotate by thrust mechanism 3035, realized Closure.After closure, core bar can be clamped by support wheel group 3032 and pinch wheels 3033.

Support wheel group 3032 includes two support wheels, and two support wheels couple with the rotation of connection frame 3031, and two support wheels connect It is connected to gear driven mechanism, support wheel can be driven to rotate by gear driven mechanism.Specific: two support wheels are connected separately with Driven gear, two driven gears are engaged with driving gear, and driving gear couples with the output shaft of dynamical element, the shell of dynamical element Body is fixedly connected with connector.Core bar can be driven mobile by the rotation of support wheel group 3032.

Thrust mechanism 3035 mainly plays a driving role, and can use cylinder or oil cylinder, it is preferred to use worm and gear lifting Mechanism.Specific: the shell of worm and gear elevating mechanism is fixedly connected with connection frame 3031, and worm screw and clamp arm 3034 are cut with scissors It connects.

Only the preferred embodiment of the utility model is explained in detail above, but the utility model be not limited to it is above-mentioned Embodiment can also not depart from the utility model aims within the knowledge of a person skilled in the art Under the premise of various changes can be made, various change should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of bimetal metallurgy combination composite seamless pipe pipe process units characterized by comprising rotating device (10), Preheat lifting platform (20) and electroslag furnace lifting platform (30)；

Outer layer hollow material is heated by preheating lifting platform (20) comprising preheating device (204) and lifting device, institute It states preheating device (204) to be arranged on lifting device, preheating device (204) can be driven to vertically move by lifting device；

The rotation of outer hollow material is driven by rotating device (10), is located at the lower section of preheating device (204)；

It drives core bar mobile by electroslag furnace lifting platform (30), protrudes into outer hollow material comprising lifting platform and folder Device is held, the clamping device is arranged on lifting platform, clamping device can be driven to vertically move by lifting platform, the clamping dress Setting in the top of preheating device (204).

2. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 1, which is characterized in that The lifting device is gone up and down sliding case (203) including the first column (201), the first elevating mechanism (202), first, and described first liter It drops sliding case (203) to be arranged on the first column (201), first elevating mechanism (202) goes up and down sliding case (203) connection with first It connects, drives first to go up and down sliding case (203) along the first column (201) movement, the preheating device by the first elevating mechanism (202) (204) by swing arm (205) with first lifting cunning case (203) couple, the both ends of the swing arm (205) respectively with pre- hot charging It sets (204) and first and goes up and down sliding case (203) hingedly；It further include limit pull rod (206), the both ends point of the limit pull rod (206) Sliding case (203) and preheating device (204) are not gone up and down hingedly with first, and the limit pull rod (206) is retractable structure.

3. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 2, it is characterised in that: The limit pull rod (206) includes the first interior bar (2061) and the first outer bar (2062), first interior bar (2061) and first Outer bar (2062) is slidably connected, and first outer bar (2062) is equipped with limited screw (2063).

4. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 1, it is characterised in that: The lifting platform includes that the second column (301) and second go up and down sliding case (302), and the clamping device includes hitch feed device (303) it is arranged on the second column (301) with center adjustment support frame (304), second lifting sliding case (302), and can edge Second column (301) is mobile, and hitch feed device (303) setting is gone up and down on sliding case (302) second, the center adjustment Support frame (304) couples and is located at the lower section of hitch feed device (303) with the second column (301), passes through hitch feed device (303) it can clamp and drive core bar mobile, the work of support core bar is played by center adjustment support frame (304) With.

5. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 4, it is characterised in that: The center adjustment support frame (304) includes fixed ring (3041) and shift(ing) ring (3042), and fixed ring (3041) setting exists On second column (301), one end of the shift(ing) ring (3042) and one end of fixed ring (3041) are hinged, shift(ing) ring (3042) The other end detachably couples with the other end of fixed ring (3041), is equipped on the fixed ring (3041) and shift(ing) ring (3042) It flexibly supports (3043).

6. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 5, it is characterised in that: The resilient support (3043) includes telescopic rod (30431) and idler wheel (30432), the idler wheel (30432) and telescopic rod (30431) rotation connection.

7. a kind of bimetal metallurgy combination composite seamless pipe pipe process units according to claim 4, it is characterised in that: The hitch feed device (303) includes connection frame (3031), rotatable support wheel group (3032) and pinch wheels (3033), institute Connection frame (3031) to be stated to couple with the second lifting sliding case (302), the support wheel group (3032) is arranged on connection frame (3031), The connection frame (3031) is hinged with clamp arm (3034), the pinch wheels (3033) be arranged on clamp arm (3034) and with branch Support wheel group (3032) relatively, the clamp arm (3034) is hinged with thrust mechanism (3035), can be with by thrust mechanism (3035) Push clamp arm (3034) rotation.