阅读说明：本技术 一种离心铸管机的无机头轴承式离心主机 (A kind of centrifugal tube casting machine is centrifuged host without head bearing-type ) 是由 徐砚琛 于 2019-08-24 设计创作，主要内容包括：本发明涉及一种离心铸管机的无机头轴承式离心主机,属于机械设备领域。本发明包括主机机体,其结构特点在于：还包括带轮、插口挡板、吸风装置、上芯压紧组件、管模升降装置、动力装置、托压轮定位装置和承口挡板装置,所述插口挡板安装在主机机体的插口端,所述承口挡板装置安装在主机机体的承口端,所述带轮与承口挡板装置配合,所述上芯压紧组件和动力装置均安装在主机机体上,所述动力装置与带轮连接,所述管模升降装置和托压轮定位装置均安装在主机机体内、且管模升降装置与托压轮定位装置配合,所述吸风装置与主机机体连接。(It is centrifuged host without head bearing-type the present invention relates to a kind of centrifugal tube casting machine, belongs to machinery equipment field.The present invention includes host body, its design feature is: further including belt wheel, socket baffle, air intake device, upper core holds down assembly, pipe die lifting device, power device, backing pressure wheel positioning device and bellmouth retaining device, the socket baffle is mounted on the socket end of host body, the bellmouth retaining device is mounted on the female end of host body, the belt wheel and bellmouth retaining device cooperate, the upper core holds down assembly to be installed on host body with power device, the power device is connect with belt wheel, the pipe die lifting device and backing pressure wheel positioning device are installed in host body, and pipe die lifting device and backing pressure wheel positioning device cooperate, the air intake device is connect with host body.)

1. a kind of centrifugal tube casting machine is centrifuged host, including host body (261) without head bearing-type, it is characterised in that: also wrap Include belt wheel (262), socket baffle (263), air intake device (23), upper core hold down assembly (14), pipe die lifting device (11), power Device (12), backing pressure wheel positioning device (8) and bellmouth retaining device (25), the socket baffle (263) are mounted on host body (261) socket end, the bellmouth retaining device (25) are mounted on the female end of host body (261), the belt wheel (262) with Bellmouth retaining device (25) cooperation, the upper core holds down assembly (14) and power device (12) is installed in host body (261) On, the power device (12) connect with belt wheel (262), and the pipe die lifting device (11) and backing pressure wheel positioning device (8) are equal It is mounted in host body (261) and pipe die lifting device (11) and backing pressure wheel positioning device (8) cooperates, the air intake device (23) it is connect with host body (261)；

The bellmouth retaining device (25) includes baffle (251) and catch wheel device (252), and the catch wheel device (252) is mounted on On baffle (251), the belt wheel (262) and catch wheel device (252) cooperate.

2. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the air draught Device (23) includes aspiration channel (231), air-exhausting duct (232), No.1 swing air hose (233), No. two swing air hoses (234) and swings Air duct connecting structure (235), the aspiration channel (231) swing air hose (233) with No.1 and connect, and the No.1 swings air hose (233) with No. two swing air hoses (234) by swing air duct connecting structure (235) connect, No. two swing air hoses (234) and Air-exhausting duct (232) connection, the aspiration channel (231) connect with host body (261)；And/or；The baffle (251) includes gear Plate ontology (2511), the catch wheel device (252) include gear wheel seat (2523) and gear wheel ontology (2525), the gear wheel ontology (2525) it is mounted on gear wheel seat (2523), the gear wheel seat (2523) is mounted on baffle body (2511), the belt wheel (262) cooperate with gear wheel ontology (2525).

3. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the upper core Hold down assembly (14) include that upper core compresses push-pull mechanism (141), upper core compresses swing mechanism (142) and upper core compresses and multiplies core frame (143), the upper core compresses swing mechanism (142) and connect with upper core compression push-pull mechanism (141), and the upper core compression multiplies core frame (143) core is mounted on to compress on swing mechanism (142).

4. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the pipe die Lifting device (11) includes pipe die lifting housing (111), pipe die lift shaft (112), pipe die lifting and swinging arm (113), pipe die Lifting wheel holding (114) and pipe die lifting actuating arm (115), pipe die lifting housing (111) are sleeved on pipe die lift shaft (112) on, the pipe die lifting and swinging arm (113) and pipe die lifting actuating arm (115) connect with pipe die lift shaft (112) It connects, the pipe die lifting wheel holding (114) is mounted on pipe die lifting and swinging arm (113).

5. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the power Device (12) includes power motor (121), power fixing seat (122), power adjustment seat (123), power torque arm (124), power Crossbeam (125) and power adjustment component (126), the power adjustment seat (123) are rotatablely installed on power fixing seat (122), institute The one end for stating power torque arm (124) is connect with the bottom of power adjustment seat (123), the other end of the power torque arm (124) with Power crossbeam (125) connection, the power crossbeam (125) connect with power adjustment component (126), the power motor (121) It is mounted on power adjustment seat (123), the power fixing seat (122) is mounted on host body (261), the power motor (121) it is connect with belt wheel (262), the belt wheel (262) connect with the female end of pipe die, and the outer wall and pipe die of the pipe die are gone up and down Device (11) or backing pressure wheel positioning device (8) cooperation.

6. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the backing pressure Wheel positioning device (8) includes the support roller positioning component (81) for being mounted on host body (261) lower part, and is mounted on host body (261) the pinch roller positioning component (82) on top, the support roller positioning component (81) and pinch roller positioning component (82) cooperate, the support Taking turns positioning component (81) includes for adjusting the height of pipe die, so that support roller that the pipe die axis of different tube diameters overlaps etc. High block (818).

7. centrifugal tube casting machine according to claim 6 is centrifuged host without head bearing-type, it is characterised in that: the support roller Positioning component (81) further includes roller frame (816) and support roller ontology (817), and the support roller ontology (817) is mounted on roller frame (816) on, the roller frame (816) is mounted on support roller isometry block (818).

8. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the bellmouth Retaining device (25) includes baffle (251) and catch wheel device (252), and the catch wheel device (252) is mounted on baffle (251), The baffle (251) includes baffle body (2511), and the catch wheel device (252) includes gear wheel seat (2523) and gear wheel ontology (2525), the gear wheel ontology (2525) is mounted on gear wheel seat (2523), and the gear wheel seat (2523) is mounted on baffle body (2511) on, the baffle body (2511) is located in the race of belt wheel (262).

9. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: described inorganic Head bearing-type centrifugation host further includes for the water-cooling system cooling for pipe die.

10. centrifugal tube casting machine according to claim 1 is centrifuged host without head bearing-type, it is characterised in that: the nothing It further includes the upper mandrel assembly (15) for being mounted on core and holding down assembly on (14) that head bearing-type, which is centrifuged host, and the upper mandrel is total At (15) include upper mandrel seat (1521), upper core main shaft (1522), upper core spring (1523), upper core spring spool (1524), on Core spring fastening (1525) and upper core clamp jacking block (1526), and the upper core main shaft (1522) is mounted on mandrel seat (1521) On, the upper core spring spool (1524), upper core spring fastening (1525) and upper core clamp jacking block (1526) and are sleeved on core On main shaft (1522), the upper core clamps jacking block (1526) and contacts with upper core spring fastening (1525), the upper core spring (1523) one end is abutted with upper core spring fastening (1525), the other end and upper core spring spool of the upper core spring (1523) (1524) it abuts.

Technical field

It is centrifuged host without head bearing-type the present invention relates to a kind of centrifugal tube casting machine, belongs to machinery equipment field.

Background technique

Centrifugal tube casting machine centrifugation host for ductile iron pipe processing in, ductile iron pipe plus man-hour requirement to Pouring molten iron in pipe die, by being centrifuged host driven pipe die high speed rotation, so that molten iron is in-molded in pipe and casts after cooling down It at pipe fitting, needs to be blocked the female end of pipe die with sand core before pouring molten iron into pipe die, molten iron used when preventing casting Outflow, then into pipe die, pouring molten iron is to pass through bearing when processing caliber is 1200mm pipe fitting below from the socket end of pipe die The female end of pipe die is supported, the pipe fitting of pipe fitting 1200mm or more can not be processed.

Casting spheroidal graphite cast-iron is exclusively used in view of this, disclosing in the patent document that notification number is 201621484921.0 The centrifuge of pipe, the centrifuge in above-mentioned documents are suitable for the processing that caliber is 1200mm pipe fitting below, can not process The pipe fitting of pipe fitting 1200mm or more.

Summary of the invention

It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide it is a kind of reasonable in design, Directly driven by belt wheel pipe die rotate, suitable for process the biggish ductile iron pipe of caliber centrifugal tube casting machine without head axis Hold formula centrifugation host.

Technical solution used by the present invention solves the above problems is: being centrifuged without head bearing-type for the centrifugal tube casting machine is led Machine, including host body, design feature are: further include belt wheel, socket baffle, air intake device, upper core hold down assembly, pipe die Lifting device, power device, backing pressure wheel positioning device and bellmouth retaining device, the socket baffle are mounted on inserting for host body Mouthful end, the bellmouth retaining device are mounted on the female end of host body, and the belt wheel and bellmouth retaining device cooperate, it is described on Core holds down assembly to be installed on host body with power device, and the power device is connect with belt wheel, the pipe die lifting dress It sets and is installed in host body with backing pressure wheel positioning device and pipe die lifting device and backing pressure wheel positioning device cooperate, it is described Air intake device is connect with host body.

Further, the air intake device includes aspiration channel, air-exhausting duct, No.1 swing air hose, No. two swing air hoses and pendulum Dynamic air duct connecting structure, the aspiration channel swing air hose with No.1 and connect, and the No.1 swings air hose and No. two swing air hoses are logical The connection of swing air duct connecting structure is crossed, No. two swings air hose is connect with air-exhausting duct, and the aspiration channel is connect with host body. No.1 swings air hose and No. two swing the more flexible of air hose swing, can reach better air draught dust removing effects.

Preferably, the aspiration channel and No.1 swing air hose and No. two swing air hoses and air-exhausting duct passes through revolution branch Support connection.

Preferably, the swing air duct connecting structure includes swinging air hose connecting tube, the swing air hose connecting tube One end swings air hose with No.1 and connect, and the other end for swinging air hose connecting tube is connect with No. two swing air hoses.

Preferably, the swing air duct connecting structure further includes swinging air hose attachment base, swinging air hose connecting shaft and pendulum Dynamic air hose fifth wheel, the swing air hose attachment base are mounted on No. two swing air hoses, and the swing air hose connecting shaft is mounted on It swings on air hose attachment base, the swing air hose fifth wheel, which is mounted on, to be swung in air hose connecting shaft, the swing air hose fifth wheel It is contacted with air hose connecting tube is swung.

Preferably, the swing air duct connecting structure further includes swinging air hose link slot, the swing air hose link slot On swinging air hose connecting tube, the swing air hose fifth wheel, which is located at, to be swung in air hose link slot for setting.

Preferably, the swing air hose link slot is annular recess.

Preferably, the quantity for swinging air duct connecting structure is three, the swing air duct connecting structure uniformly divides Cloth.

It is swung in air hose connecting shaft preferably, the swing air hose fifth wheel is mounted on by bearing.

Preferably, the air intake device further includes connection air hose, one end of the connection air hose is connect with aspiration channel, institute It states the other end of connection air hose and No.1 swings air hose and connect by revolving support.

Preferably, the air intake device further includes inspection platform.

Further, the upper core holds down assembly and compresses push-pull mechanism including upper core, upper core compresses swing mechanism and upper core Compression multiplies core frame, and the upper core compresses swing mechanism and connect with upper core compression push-pull mechanism, and the upper core compression multiplies the installation of core frame It is compressed on swing mechanism in upper core.

Preferably, the upper core compress swing mechanism include upper core compresses gantry pillars, upper core compresses swinging mounting, on Core compresses and swings shaft, upper core compresses swing pulley and upper core compresses and swings transverse arm, and the upper core compresses push-pull mechanism and upper core One end connection for swinging shaft is compressed, the upper core compression swing transverse arm is mounted on core and compresses the other end for swinging shaft, institute It states core compression and multiplies core frame and be mounted on core and compress and swing on transverse arm, the upper core, which compresses to swing shaft and be mounted on core, compresses pendulum On dynamic support, the upper core compresses swing shaft to be run through with upper core compression swinging mounting, and the upper core, which compresses, swings pulley rotation It is mounted in core compression swing shaft and upper core compresses swing pulley and is slidably mounted on core compression swinging mounting.Pass through Core, which holds down assembly, on this can be achieved for sand core to be automatically placed in the female end of pipe die, reduces the investment of human cost, improves work Make efficiency, improves safety coefficient.

Preferably, it further includes that two upper cores compress swing sliding rail, described two upper cores that the upper core, which compresses swing mechanism, Compression swing sliding rail is installed on core compression swinging mounting and upper core compression swings pulley positioned at two above cores compression swings Between sliding rail.Swing pulley is compressed to upper core and plays the role of limit, while reducing frictional force when sliding.

Preferably, it further includes that upper core compresses oscillating oil cylinder and upper core compression oscillating oil cylinder that the upper core, which compresses swing mechanism, Seat, the piston rod and upper core compression swinging mounting of the upper core compression oscillating oil cylinder are hinged, and the upper core compresses oscillating oil cylinder Cylinder barrel and upper core compression swing cylinder seat are hinged, and the upper core compresses swing cylinder seat and is mounted on host body.

Preferably, it further includes that upper core compresses swing protective jacket that the upper core, which compresses swing mechanism, the upper core compresses pendulum Dynamic protective jacket is mounted on the other end of core compression swing shaft and upper core compresses and swings protective jacket and upper core compression gantry pillars Cooperation.The end for compressing gantry pillars to upper core plays a protective role.

Preferably, the upper core compress push-pull mechanism include that upper core compresses push-and-pull shaft, upper core compresses push-and-pull axle sleeve and Upper core compresses push-and-pull end cap, and the upper core compresses push-and-pull shaft and is mounted in core compression push-and-pull axle sleeve, and the upper core compression pushes away Pull end lid is mounted on core compression push-pull shaft and puts on, and the upper core compresses push-and-pull end cap and one end of upper core compression swing shaft connects It connects.Not only the upper core compression of axis push-and-pull that may be implemented to compress swing shaft along upper core swings shaft, but also may be implemented along upper The axis that core compresses swing shaft makes core compress swing shaft rotation.

Preferably, it further includes that upper core compresses push cylinder and upper core compression push cylinder that the upper core, which compresses push-pull mechanism, Seat, the upper core compresses the piston rod of push cylinder and upper core compresses push-and-pull shaft and connect, and the upper core compresses push cylinder Cylinder barrel is mounted on core and compresses on push cylinder seat, and the upper core compresses push cylinder seat and is mounted on host body.

Preferably, the upper core, which compresses, swings the end that protective jacket is sleeved on core compression gantry pillars.To upper core pressure The end of tight gantry pillars plays a protective role.

Preferably, it further includes that upper core compresses swing pivoted arm that the upper core, which compresses swing mechanism, the upper core, which compresses, to be swung Pivoted arm is mounted on core and compresses in swing shaft, and the upper core compresses swinging mounting and is mounted on core compression swing pivoted arm.

It is connected by key preferably, the upper core compresses swing pivoted arm with upper core compression swing shaft.

Preferably, it further includes that upper core compresses swing pulley base that the upper core, which compresses swing mechanism, the upper core compresses pendulum Movable pulley seat is mounted on core and compresses in swing shaft, and the upper core compression swing pulley is mounted on core compression and swings pulley base On.

Preferably, the upper core, which compresses, swings pulley as bearing.Reduce frictional force when sliding.

Further, the pipe die lifting device includes pipe die lifting housing, pipe die lift shaft, pipe die lifting and swinging Arm, pipe die lifting wheel holding and pipe die go up and down actuating arm, and the pipe die lifting coat suit is on pipe die lift shaft, the pipe die Lifting and swinging arm and pipe die lifting actuating arm are connect with pipe die lift shaft, and the pipe die lifting wheel holding is mounted on pipe die lifting On swing arm.Can be realized by the pipe die lifting device when replacing pipe die pipe die lifting automatic positioning, with reduce pipe die with Frictional force between backing pressure wheel apparatus, it is ensured that pipe die outer wall will not be worn.

Preferably, the pipe die lifting and swinging arm is located in host body, the pipe die lifting actuating arm is located at host Outside body.

Preferably, the pipe die lifting device further includes pipe die lifting cylinder and pipe die hoist cylinder seat, the pipe die The piston rod of lifting cylinder and pipe die lifting actuating arm are hinged, and the cylinder barrel and pipe die hoist cylinder seat of the pipe die lifting cylinder are cut with scissors It connects.Pipe die, which is controlled, by pipe die lifting cylinder goes up and down actuating arm along the rotation of pipe die lift shaft, so that pipe die lifting and swinging arm It is swung in host body, so that the rise of pipe die lifting wheel holding holds up pipe die.

Preferably, being provided with annular recess on the pipe die lifting wheel holding.Pipe die is avoided to be detached from pipe die lifting wheel holding.

Preferably, the section of annular recess structure setting triangular in shape.Limit is played to pipe die lifting wheel holding to make With so that pipe die can be moved along pipe die axis direction.

Preferably, the pipe die lifting device further includes scale plate, the scale plate is mounted on outside host body.Pass through Scale plate can determine the height that pipe die lifting and swinging arm rises mould lifting wheel holding in host body, so that replacement pipe die Working efficiency is higher.

Preferably, the scale plate and pipe die lifting actuating arm cooperation.

Preferably, the pipe die lifting housing is mounted on host body.

Preferably, between the pipe die lifting and swinging arm and pipe die lifting actuating arm, there are angles.

Preferably, the pipe die lifting and swinging arm is located at the middle part of host body.

Further, the power device includes power motor, power fixing seat, power adjustment seat, power torque arm, power Crossbeam and power adjustment component, in power adjustment seat rotational installation power fixing seat, one end of the power torque arm and dynamic The bottom of power adjustment seat connects, and the other end of the power torque arm is connect with power crossbeam, the power crossbeam and power adjustment Component connection, the power motor are mounted on power adjustment seat, and the power fixing seat is mounted on host body, described dynamic Force motor is connect with belt wheel, the female end connection of the belt wheel and pipe die, the outer wall and pipe die lifting device or support of the pipe die The cooperation of pinch roller positioning device.Crossing the power device may be implemented in automatic tensioning belt when head is replaced.

Preferably, the power device further includes power idler wheel, the power idler wheel is mounted on the another of power torque arm It holds on the axis being connect with power crossbeam.

Preferably, the power idler wheel is contacted with power fixing seat.Power idler wheel is in power fixing seat in moving process Upper rolling, to reduce frictional force.

Preferably, the power adjustment component includes power sleeve and power lift, the power sleeve is mounted on On power crossbeam, the power lift is connect with power sleeve.By the screw rod rotation in power lift, so that power set Cylinder is mobile, and then drives power cross beam movement.

Preferably, the power sleeve includes power mobile nut and power copper nut, the power mobile nut peace On power crossbeam, the power copper nut is mounted on power mobile nut.

Preferably, the screw rod of the power lift is mounted in power copper nut.

Preferably, the power motor is alternating current generator.

Preferably, the power fixing seat is mounted on host body.

Preferably, the both ends of the power crossbeam are respectively equipped with a power idler wheel, each power idler wheel is and power The other end of torque arm connects.It will not be tilted in two power idler wheel moving process.

Preferably, the power fixing seat is of an L-shaped structure setting.

Further, the backing pressure wheel positioning device includes the support roller positioning component for being mounted on host underpart, and peace Mounted in the pinch roller positioning component of host body upper, the support roller positioning component and pinch roller positioning component cooperate, and the support roller is fixed Hyte part includes for adjusting the height of pipe die, so that the support roller isometry block that the pipe die axis of different tube diameters overlaps.It is logical The height adjustment that installation isometry block realizes support roller ontology is crossed, isometry block height is fixed, and need to only be selected before replacement pipe die corresponding Isometry block is installed.

Further, the support roller positioning component further includes roller frame and support roller ontology, and the support roller ontology is mounted on support On wheel carrier, the roller frame is mounted on support roller isometry block.

Preferably, the support roller isometry block is mounted in host body.

Preferably, the pinch roller positioning component includes pinch roller positional cylinder, pinch roller positioning telescopic rod, pinch roller frame and pinch roller Ontology, the pinch roller positional cylinder are mounted on host body, and the pinch roller positioning telescopic rod is connect with pinch roller positional cylinder, institute It states pinch roller frame to be mounted in host body, the pinch roller positioning telescopic rod is contacted with pinch roller frame, and the pinch roller ontology is mounted on pressure On wheel carrier.

Preferably, the pinch roller positioning component further includes pinch roller positioning adjustment seat, pinch roller positioning adjusting bolt and pinch roller Swing arm, the pinch roller positioning adjustment seat are mounted on host body, and the pinch roller positioning adjusts bolt and is mounted on pinch roller positioning tune It saves on seat, the pinch roller swing arm is connect with pinch roller frame, and the pinch roller positioning adjusts bolt and contacts with pinch roller swing arm.

Further, the bellmouth retaining device includes baffle and catch wheel device, and the catch wheel device is mounted on baffle, The baffle includes baffle body, and the catch wheel device includes gear wheel seat and gear wheel ontology, and the gear wheel ontology is mounted on gear wheel On seat, the gear wheel seat is mounted in baffle body, and the baffle body is located in the race of belt wheel.Pass through centrifugal tube casting machine Bellmouth retaining device can reduce the frictional force between pipe die and gear wheel ontology, to extend the service life of pipe die and gear wheel ontology, Belt wheel is connect with pipe die, directly drives pipe die rotation by the rotation of power device driving pulley.

Preferably, the baffle further includes gear wheel mounting plate, the gear wheel mounting plate is mounted in baffle body, described Gear wheel seat is mounted on gear wheel mounting plate.

Preferably, the catch wheel device further includes gear wheel hasp and gear wheel pin shaft, the gear wheel hasp and gear wheel seat are solid Fixed, the gear wheel hasp is mounted on gear wheel mounting plate by gear wheel pin shaft.

Preferably, the baffle further includes gear wheel adjustment bolt, the catch wheel device further includes gear wheel adjustment plate, described Gear wheel adjustment bolt is mounted in baffle body, and the gear wheel adjustment plate is mounted on gear wheel seat, the gear wheel adjustment bolt with The contact of gear wheel adjustment plate.

Preferably, the catch wheel device further includes gear wheel spanner, the gear wheel spanner is mounted on gear wheel seat.

Preferably, the baffle further includes baffle ear mount, the baffle ear mount is fixed on gear wheel mounting plate, the gear Plate ear mount is connect with gear wheel hasp by gear wheel pin shaft.

Preferably, the quantity of the catch wheel device is two, described two catch wheel devices are arranged symmetrically.

Preferably, described two catch wheel devices are arranged in same level.

Preferably, being equipped with baffle lifting lug on the baffle.

Preferably, the gear wheel ontology structure setting in a circular table shape.

Further, the no head bearing-type centrifugation host further includes for the water-cooling system cooling for pipe die.

Preferably, the high position sparge pipe, middle position sparge pipe and low level sparge pipe are installed in host body.

Preferably, in the socket water cooling tube, bellmouth water cooling tube and bellmouth sparge pipe, adjacent water cooling on each pipeline Spray head is staggered.So that cooling is more uniform.

Preferably, the high position wobble component includes high-order support arm, high-order swing arm and high-order screw lift, institute It states high-order sparge pipe to be mounted on high-order support arm, the high position support arm is mounted on swinging support column, the high-order support Arm is connect with high-order swing arm, and the high position swing arm is connect with high-order screw lift, the high position screw lift installation On swinging support column.High-order swing arm rotation is driven by high-order screw lift, high-order branch is driven by high-order swing arm Brace rotation, is adjusted to suitable position for high-order sparge pipe.

Preferably, the middle position wobble component includes that middle position support arm, middle position linking arm, middle position guide rail and middle position are sliding Set, the middle position sparge pipe are mounted on middle position support arm, and the middle position support arm is mounted on swinging support column, the middle position Linking arm is connect with middle position support arm, and the middle position guide rail is connect with middle position linking arm, and the middle position sliding sleeve is sleeved on middle position and leads On rail, the middle position sliding sleeve is mounted on swinging support column.By pushing or pull on middle position guide rail middle position support arm is rotated, Middle position sparge pipe is adjusted to suitable position, by the way that middle position sliding sleeve to be fixed, realizes the fixation of centering position sparge pipe.

Preferably, the quantity of the high position sparge pipe, middle position sparge pipe and low level sparge pipe is two groups, described two groups High-order sparge pipe, middle position sparge pipe and low level sparge pipe are symmetrical arranged.

Preferably, the socket water cooling tube, bellmouth water cooling tube and the arc-shaped structure setting of bellmouth sparge pipe.

Preferably, the water cooling spray head on multiple high position sparge pipes is arranged in same level, multiple middle position sparge pipes Water cooling spray head water cooling spray head in same level, multiple low level sparge pipes be set be arranged in same level.

Preferably, being equipped with middle position segmentation sparge pipe on the middle position sparge pipe, pacify on the middle position segmentation sparge pipe Equipped with water cooling spray head.

Further, the no head bearing-type centrifugation host further include be mounted on core hold down assembly on upper mandrel it is total At, the upper mandrel assembly include upper mandrel seat, upper core main shaft, upper core spring, upper core spring spool, upper core spring fastening and on Core clamps jacking block, and the upper core main shaft is mounted on mandrel seat, the upper core spring spool, upper core spring fastening and upper core folder Block is pressed closer to be sleeved on core main shaft, the upper core clamps jacking block and contacts with upper core spring fastening, and the one of the upper core spring End is abutted with upper core spring fastening, and the other end of the upper core spring is abutted with upper core spring spool.Sand core is placed on upper core On spring fastening, in the female end that sand core is placed on to pipe die by upper mandrel assembly, multiplying core frame at the same time can be along upper core Main shaft rotates on upper core spring fastening, and the moment for the female end that upper core spring can be mounted on pipe die in sand core plays the work of buffering With.

Preferably, the upper core spring spool is mounted on upper core main shaft by bearing.

Preferably, the upper core main shaft is multi-diameter shaft, the upper core spring pocket is on upper core spring spool.

Multiply core frame preferably, being equipped on the upper core spring fastening.

Preferably, being equipped with core shield on the upper core spring fastening.

Compared with prior art, the invention has the following advantages that

1, the centrifugal tube casting machine without head bearing-type centrifugation host is suitable for processing the biggish pipe fitting of caliber, such as manages Diameter is the pipe fitting of 1200mm or more, this directly connect with the female end of pipe die without the belt wheel in head bearing-type centrifugation host, nothing Head bearing, high production efficiency need to be installed.

2, the backing pressure wheel positioning device realizes that the height adjustment of support roller ontology, isometry block height are solid by installation isometry block It is fixed, only corresponding isometry block need to be selected to be installed before replacement pipe die.

3, can be realized by the pipe die lifting device when replacing pipe die pipe die lifting automatic positioning, with reduce pipe die with Frictional force between backing pressure wheel apparatus, it is ensured that pipe die outer wall will not be worn, particular by the control pipe die lifting of pipe die lifting cylinder Actuating arm is rotated along pipe die lift shaft, so that pipe die lifting and swinging arm is swung in host body, so that pipe die lifting support Wheel rises and holds up pipe die.

4, automatic tensioning belt when may be implemented in head replacement by the power device, particular by power lift Screw rod rotation so that power sleeve is mobile, and then drives power cross beam movement, power idler wheel is fixed in power in moving process It is rolled on seat, to reduce frictional force, power adjustment seat is jacked up by power torque arm, realizes the automatic adjustment of belt tension.

5, being held down assembly by core on this can be achieved for sand core to be automatically placed in the female end of pipe die, reduce human cost Investment, improves work efficiency, improves safety coefficient, compresses push cylinder particular by upper core and upper core compression is pushed to swing Shaft, compressing oscillating oil cylinder control by upper core, above core compresses swinging mounting and upper core compression swings shaft and compresses along upper core Swing shaft rotation so that upper core compresses and swings transverse arm upper core compression is driven to multiply the swing of core frame so that upper core compression multiply core frame with The female end of pipe die misplaces, and sand core can be placed on to upper core compression at this time and multiplied on core frame, compressing oscillating oil cylinder control by upper core Core, which compresses, in system swings cross arm swing, so that upper core compresses the female end for multiplying core frame alignment pipe die, pushes and pulls being compressed by upper core Oil cylinder pulls upper core to compress and swings shaft, and upper core is compressed to the female end for swinging the sand core on transverse arm and being placed on pipe die；Passing through Upper core, which compresses push cylinder and pushes or pull on core, to be compressed when swinging shaft, and upper core, which compresses, to be swung pulley and compress pendulum in two upper cores It is slided between dynamic sliding rail, to reduce frictional force.

6, upper core function automatically can be realized by upper mandrel assembly, sand core is placed on upper core spring fastening, is being passed through Sand core is placed on the female end of pipe die by upper mandrel assembly, and multiplying core frame at the same time can be along upper core main shaft in upper core spring fastening The moment of upper rotation, the female end that upper core spring can be mounted on pipe die in sand core plays the role of buffering, and mandrel assembly can on this It realizes and automates upper core, reduce the investment of human cost, improve work efficiency.

7, through the air intake device when to host body air draught dedusting, No.1 swings the position of air hose and No. two swing air hoses Setting can carry out adjusting relatively, air hose or No. two swing air hoses be swung particular by No.1 is pushed or pull on, so that swinging air hose The swing air hose link slot of fifth wheel opposite sliding in swing air hose link slot, setting can play limit to air hose fifth wheel is swung Position effect avoids swinging air hose fifth wheel and swinging air hose link slot being detached from, so that No.1 swings air hose and No. two swing air hoses What is swung is more flexible, can reach better air draught dust removing effects, reduces the intracorporal dust of host machine, guarantees product quality.

8, the frictional force between pipe die and gear wheel ontology can be reduced by bellmouth retaining device, to extend pipe die and gear wheel sheet The service life of body, belt wheel are connect with pipe die, directly drive pipe die rotation, gear wheel ontology by the rotation of power device driving pulley It is stuck in the groove of belt wheel, belt wheel may make gear wheel ontology to rotate, while rotation to reduce between belt wheel and gear wheel ontology Friction, replace pipe die after, contacted by gear wheel adjustment bolt with gear wheel adjustment plate so that gear wheel ontology be embedded in belt wheel it is recessed In slot.

Detailed description of the invention

Fig. 1 is the schematic view of the front view without head bearing-type centrifugation host of the embodiment of the present invention.

Fig. 2 is the left view structural representation without head bearing-type centrifugation host of the embodiment of the present invention.

Fig. 3 is the overlooking structure diagram of the air intake device of the embodiment of the present invention.

Fig. 4 is the portion the H enlarged structure schematic diagram in Fig. 3.

Fig. 5 is the left view structural representation of the backing pressure wheel positioning device of the embodiment of the present invention.

Fig. 6 is the schematic view of the front view of the pipe die lifting device of the embodiment of the present invention.

Fig. 7 is the schematic diagram of the section structure of the pipe die lifting device of the embodiment of the present invention.

Fig. 8 is the schematic view of the front view of the power device of the embodiment of the present invention.

Fig. 9 is the left view structural representation of the power device of the embodiment of the present invention.

Figure 10 is the C-C the schematic diagram of the section structure in Fig. 9.

Figure 11 is the left view structural representation that the upper core of the embodiment of the present invention holds down assembly.

Figure 12 is the E-E the schematic diagram of the section structure in Figure 11.

Figure 13 is the F-F the schematic diagram of the section structure in Figure 12.

Figure 14 is the portion the G enlarged structure schematic diagram in Figure 12.

Figure 15 is the schematic diagram of the section structure of the upper mandrel assembly of the embodiment of the present invention.

Figure 16 is the left view structural representation of the bellmouth retaining device of the embodiment of the present invention.

Figure 17 is the overlooking structure diagram of the bellmouth retaining device of the embodiment of the present invention.

Figure 18 is the schematic view of the front view of catch wheel device in the bellmouth retaining device of the embodiment of the present invention.

Figure 19 is the schematic diagram of the section structure of catch wheel device in the bellmouth retaining device of the embodiment of the present invention.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair Bright explanation and the invention is not limited to following embodiments.