CN206392816U - Centrifugal casting machine for bimetal composite wear resistant tube road - Google Patents

Abstract

The utility model discloses a kind of centrifugal casting machine for bimetal composite wear resistant tube road, by above and below carbon steel outer tube both sides install additional lower end magnet, upper end magnet formation fixed magnetic field, implement electromagnetic agitation in the process of setting for making metal material, molten metal is set to realize that metal grain growth pattern is changed into isometric crystal type by column crystal type under electromagnetic force and the double action of centrifugal force, the mobility of molten metal will be more preferable, the composition of molten metal is more uniform, will not occur component segregation phenomenon in solidification again.Axially position during other spun casting is to carry out axially position by being separately installed with front end locating wheel, rear end end thrust locating wheel on the outside of the pipe end closure plate of carbon steel outer tube two ends, carbon steel outer tube is not only set to adjust length in the axial direction, and the carbon steel outer tube of different-diameter is adapted in vertical direction, axial motion and vibration will not be occurred by ensureing that faying face contact is stable, can efficiently solve the deficiencies in the prior art.

Description

Centrifugal casting machine for bimetal composite wear resistant tube road

Technical field

The utility model is related to metal centrifugal casting machine technical field, more particularly to a kind of for bimetal composite wear resistant tube The centrifugal casting machine in road.

Background technology

Metallurgical mine conveying mineral powder generally uses air-flow conveying solid substance miberal powder, and its conveyance conduit generally includes straight tube and change The bend pipe composition of the different angles of the miberal powder stream direction of motion, existing conveyance conduit generally uses a kind of bimetal wear resistant composite tube, Including the outer tube being combined successively from outside to inside and wear-resisting inner tube, outer tube is carbon steel outer tube, and wear-resisting inner tube is cast abrasion-resistant alloy steel Wear-resisting inner tube, the bimetal wear resistant composite tube is simple in construction, with low cost, the outer tube compound successively and wear-resisting interior by setting Pipe, compared with the conveyance conduit that traditional single metal material is seamless or welded still pipe is made, bimetallic tubing has well strong Degree and corrosion resistance, and cost is low, improves the service life of miberal powder conveyance conduit.But prior art production bimetal wear resistant is answered It is using centrifugal casting machine during the wear-resisting inner tube of centrifugal casting, due to being installed additional using carbon steel outer tube, its two ends to close my humble opinion Fig. 1 Pipe end closure plate carries out centrifugal casting, sees Fig. 2, so on the one hand being influenceed easily to produce column by the heat transfer high directivity of molten metal Crystalline substance, on the other hand because the chilling action of carbon steel outer tube cold mould influences, makes it be easy to produce component segregation.And entrained solids The high velocity air of miberal powder is when flowing through bimetallic tubing pipeline, and solid particle produces serious abrasion to pipeline, so that pipeline Produce column crystal region and produce the duct wall serious wear in component segregation region so that play the wear-resisting inner tube of protective layer effect Influence subject to severe abrasion, hampers existing bimetal wear resistant composite tube life-time dilatation.Pipeline service life is not only resulted in Short, while badly influencing the safe operation of pipe-line system, in addition, must shut down replacing after piping failure, maintenance cost is high, tight Ghost image rings the normal operation of metallurgical mine.Tubing axially position during other centrifugal casting is to be installed additional outside carbon steel on tube outer surface Two locating rings, locating ring is fixed by clamping screw, and locating ring be clipped in respectively two rotary carrier rollers axle it is inside Side or outside carry out axially position, are wasted time and energy during positioning.Accordingly, it would be desirable to which a kind of technical scheme solves the above problems.

The content of the invention

For above the deficiencies in the prior art, the purpose of this utility model is to provide a kind of for bimetal composite wear resistant tube The centrifugal casting machine in road, is extended its pipeline life in miberal powder high velocity air course of conveying.

To achieve the above object, the utility model is realized using following technical scheme：

It is main to include actively holding in the palm the utility model discloses a kind of centrifugal casting machine for bimetal composite wear resistant tube road Roller, driven carrying roller, roller rack, carbon steel outer tube, casting bogie, casting ladle, motor, front end locating wheel, rear end thrust locating wheel, under Hold magnet, upper end magnet；The active carrying roller and driven carrying roller are arranged on roller rack, and two active carrying rollers pass through coaxial Carrying roller connecting shaft, shaft coupling are coaxially connected with motor, and two driven carrying rollers are in parallel to two active carrying roller shapes and pass through carrying roller Connecting shaft, shaft coupling are coaxially connected, and the carbon steel outer tube two ends are separately installed with pipe end closure plate by bolt, and carbon steel outer tube is installed On active carrying roller and driven carrying roller；The pipe end closure plate centre is provided with centre bore, the casting bogie and is provided with In syphon shape casting runner, the bottom of casting bogie is provided with roller and roller is placed on track, the upper of runner of casting Portion is placed in the exit of casting ladle, and the bottom of casting runner is stretched into carbon steel outer tube by pipe end closure plate centre bore.

The lower end magnet, upper end magnet go to upper and lower symmetrical parallel in carbon steel outer tube axis along carbon steel outer tube axis direction Direction is set respectively to be fixedly installed on platform with the upper and lower side of carbon steel outer tube, lower end magnet, and upper end magnet is fixedly installed in magnet On support, the magnet holder lower end is detachably fixed in the magnet holder position block being installed on platform, outside the carbon steel Axially position during pipe spun casting be by be separately installed with the outside of the pipe end closure plate of carbon steel outer tube two ends front end locating wheel, after Thrust locating wheel is held to carry out axially position.

The magnet holder includes longeron under support vertical beam I, support vertical beam II, support vertical beam III, support, indulged on support Beam, rack beam, stiffener plate, the support vertical beam I and rack beam are by welding in door case type structure setting and vertical phase Be welded with stiffener plate at friendship, the support vertical beam II and another rack beam by welding in door case type structure setting and The place of intersecting vertically is welded with stiffener plate, and support vertical beam III and the 3rd rack beam is in door case type structure by welding Set and the place of intersecting vertically is welded with longeron under stiffener plate, the support and is respectively welded at branch in carbon steel outer tube axial direction It is in longeron on door case type structure both sides vertical direction middle part, the support to erect beam I, support vertical beam II, support vertical beam III Support vertical beam I, support vertical beam II, support vertical beam III are welded in door case type structure top bracket in carbon steel outer tube axial direction The middle part of crossbeam, for installing upper end magnet.

The front end locating wheel includes prelocalization axle, rolling bearing I, front pressuring plate, sealing ring I, and the prelocalization axle is in perpendicular Nogata is fixedly installed on platform to ladder shape shaft, and the rolling bearing I suits are installed at the multi-diameter shaft of prelocalization axle upper end, And rolling bearing I inner rings upper and lower side carries out axially position, institute by front pressuring plate, prelocalization axle upper end multi-diameter shaft shoulder respectively State front pressuring plate and prelocalization axle upper end surface is removably mounted to by bolt, the sealing ring I is installed on front pressuring plate downside week To edge, for rolling bearing I sealings.

The rear end thrust locating wheel, which has, vertically moves function, including rear locating shaft, rolling bearing II, rear fender, close The convex slideway of seal II, stud, top shoe, lower slider, top shoe, the recessed slideway of lower slider, T-shaped slide, the T-shaped cunning of lower slider Road, the lower slider is fixedly mounted on platform in rectangular-shape, and the recessed slideway of lower slider is in and carbon steel outer tube axial direction Parallel longitudinal direction is arranged on the middle part of slide upper side, and the T-shaped slideway of lower slider is penetrating in handstand T-shaped, longitudinal direction Structure sets the both sides with the recessed slideway of lower slider respectively, and the T-shaped slideway of lower slider has been slidably mounted in handstand T in gap cooperation The T-shaped slide of shape, the T-shaped slide is provided with penetrating shape screwed hole in vertical direction middle part；

The top shoe is slidably fixedly mounted on lower slider in rectangular-shape by stud, and the top shoe is convex Slideway is arranged on the middle part of top shoe downside in the longitudinal direction parallel with carbon steel outer tube axial direction, and top shoe is convex Slideway is positioned in the recessed slideway of lower slider in gap cooperation is longitudinally movable, the convex slideway both sides of top shoe and the T-shaped slideway of lower slider Corresponding position is also respectively provided with 4 bolts hole for mounting stud of the penetrating shape of vertical direction；

The rear locating shaft is fixedly installed on top shoe in vertical direction ladder shape shaft, the rolling bearing II suits It is installed at the multi-diameter shaft of rear locating shaft upper end, and rolling bearing II inner rings upper and lower side passes through rear fender, rear locating shaft respectively Upper end multi-diameter shaft shoulder carries out axially position, and the rear fender is removably mounted to rear locating shaft upper end surface, institute by bolt State sealing ring II to be installed at the circumferential edge of rear fender downside, for rolling bearing II sealings.

Compared with prior art, the beneficial effects of the utility model are：

The utility model discloses a kind of centrifugal casting machine for bimetal composite wear resistant tube road, by carbon steel outer tube Both sides, which are installed additional in lower end magnet, upper end magnet formation fixed magnetic field, the process of setting for making metal material, up and down implements electromagnetic agitation, Molten metal is set to realize that metal grain growth pattern is changed into by column crystal type under electromagnetic force and the double action of centrifugal force Axialite mode, the mobility of molten metal will be more preferable, and the composition of molten metal is more uniform, will not occur component segregation in solidification again Phenomenon.Axially position during other spun casting is determined by being separately installed with front end on the outside of the pipe end closure plate of carbon steel outer tube two ends Position wheel, rear end thrust locating wheel carry out axially position, carbon steel outer tube is adjusted length in the axial direction, and vertical The carbon steel outer tube of different-diameter is adapted on direction, it is ensured that faying face contact is stable will not to occur axial motion and vibration, can Efficiently solve the deficiencies in the prior art.

Brief description of the drawings

Fig. 1 is prior art centrifugal casting machine overall structure diagram；

Fig. 2 is Fig. 1 A to structural representation；

Fig. 3 is that prior art carbon steel outer tube and two ends install blind structure schematic diagram additional；

Fig. 4 is the utility model centrifugal casting machine overall structure diagram；

Fig. 5 is the utility model centrifuge structure schematic diagram；

Fig. 6 is B of the present utility model to structural representation；

Fig. 7 is C of the present utility model to structural representation；

Fig. 8 is the utility model centrifugal casting machine axial direction positioning device mounting structure schematic diagram；

Fig. 9 is Fig. 8 top view；

Figure 10 is the utility model centrifugal casting machine magnet holder mounting structure schematic diagram；

Figure 11 is Figure 10 left view；

Figure 12 is the utility model front end locating wheel topology view；

Figure 13 is the utility model rear end thrust locating wheel structural front view；

Figure 14 is the utility model rear end thrust positioning wheel construction left view；

Figure 15 is the utility model rear end thrust locating wheel structure top view；

Figure 16 is T-shaped slide carriage structure main view (a) of the present utility model, left view (b), overlooks (c) figure.

Description of reference numerals：1- casting ladles, 2- casting runner, 3- casting bogies, 4- tracks, 5- roller racks, 6- are actively held in the palm Roller, 7- carrying rollers connecting shaft, 8- shaft couplings, 9- platforms, 10- motors, 11- pipe ends closure plate, 12- carbon steels outer tube, the driven carrying rollers of 13-, 14- front ends locating wheel, 141- prelocalizations axle, 142- rolling bearing I, 143- front pressuring plate, 144- sealing ring I, 15- lower ends magnet, Longeron, 165- under 16- magnet holders, 161- support vertical beam I, 162- support vertical beam II, 163- support vertical beam III, 164- supports Positioned on support after longeron, 166- rack beams, 167- stiffener plates, 17- upper ends magnet, 18- rear ends thrust locating wheel, 181- Axle, 182- rolling bearing II, 183- rear fender, 184- sealing ring II, 185- stud, 186- top shoes, 187- lower sliders, The convex slideway of 188- top shoes, the recessed slideway of 189- lower sliders, 190-T types slide, the T-shaped slideway of 191- lower sliders, 20- magnet holders are determined Position block.

Embodiment

The utility model is described in detail with reference to Figure of description, it should be noted that of the present utility model Implementation is not limited to following embodiment.

It should be noted that here, "front", "rear", " on ", " under " only to facilitate depending on description the utility model The exemplary direction of justice, as shown in drawings, paper left direction are " preceding ", and paper right direction is direction on the upside of " rear ", paper For " on ", on the downside of paper direction for " under ".Certain those skilled in the art understand on the basis of the utility model, can also it Its mode defines the directions such as "left", "right", "front", "rear", " on ", " under ", equally fall into protection domain of the present utility model it It is interior.

As shown in Fig. 4-Fig. 9, the centrifugal casting machine for bimetal composite wear resistant tube road mainly includes active carrying roller 6th, driven carrying roller 13, roller rack 5, carbon steel outer tube 12, casting bogie 3, casting ladle 1, motor 10, front end locating wheel 14, rear end are stopped Push away locating wheel 18, lower end magnet 15, upper end magnet 17；The active carrying roller 6 and driven carrying roller 13 are arranged on roller rack 5, Two active carrying rollers 6 are coaxially connected with motor 10 by coaxial carrying roller connecting shaft 7, shaft coupling 8, and two driven carrying rollers 13 are in flat Capable in two shapes of active carrying roller 6 and coaxially connected by carrying roller connecting shaft 7, shaft coupling 8, the two ends of carbon steel outer tube 12 pass through spiral shell Bolt is separately installed with pipe end closure plate 11, and carbon steel outer tube 12 is arranged on active carrying roller 6 and driven carrying roller 13；The pipe end closure plate 11 Centre, which is provided with centre bore, the casting bogie 3, to be provided with syphon shape casting runner 2, and the bottom of casting bogie 3 is set It is equipped with roller and roller is placed on track 4, the top of the casting runner 2 is placed in the exit of casting ladle 1, runner 2 of casting Bottom stretched into by the centre bore of pipe end closure plate 1 in carbon steel outer tube 12.

The lower end magnet 15, upper end magnet 17 go to upper and lower symmetrical parallel in outside carbon steel along the axis direction of carbon steel outer tube 12 The axis direction of pipe 12 is set respectively to be fixedly installed on platform 9 with the upper and lower side of carbon steel outer tube 12, lower end magnet 15, upper end magnet 17 are fixedly installed in magnet holder 16, and the lower end of magnet holder 16 is detachably fixed the magnet holder being installed on platform 9 In position block 20, axially position during 12 spun casting of carbon steel outer tube is by the two ends pipe end closure plate of carbon steel outer tube 12 11 outsides are separately installed with front end locating wheel 14, rear end thrust locating wheel 18 and carry out axially position.

As shown in Figure 10-Figure 11, the magnet holder 16 includes support vertical beam I161, support vertical beam II162, support vertical beam Longeron 164 under III163, support, longeron 165, rack beam 166, stiffener plate 167 on support, the support vertical beam I161 and Rack beam 166 is welded with stiffener plate 167 by welding in door case type structure setting and the place of intersecting vertically, and the branch is erected Beam II162 and another rack beam 166 are by the way that welding is in door case type structure setting and the place of intersecting vertically is welded with stiffener plate 167, support vertical beam III163 and the 3rd rack beam 166 is by the way that welding is in door case type structure setting and intersects vertically Place is welded with longeron 164 under stiffener plate 167, the support and is respectively welded at support vertical beam in the axial direction of carbon steel outer tube 12 I161, support vertical beam II162, support vertical beam III163 are on door case type structure both sides vertical direction middle part, the support Longeron 165 is welded on support vertical beam I161, support vertical beam II162, support vertical beam III163 in the axial direction of carbon steel outer tube 12 The middle part of door case type structure top bracket crossbeam 166, for installing upper end magnet 17.

As shown in figure 12, the front end locating wheel 14 include prelocalization axle 141, it is rolling bearing I142, front pressuring plate 143, close Seal I144, the prelocalization axle 141 is fixedly installed on platform 9 in vertical direction ladder shape shaft, the rolling bearing I142 suits are installed at the upper end multi-diameter shaft of prelocalization axle 141, and rolling bearing I142 inner rings upper and lower side is respectively by preceding Pressing plate 143, the upper end multi-diameter shaft shoulder of prelocalization axle 141 carry out axially position, and the front pressuring plate 143 is detachably installed by bolt In the upper end surface of prelocalization axle 141, the sealing ring I144 is installed at the downside circumferential edge of front pressuring plate 143, for rolling Bearing I 142 is sealed.

As shown in Figure 13-Figure 16, the rear end thrust locating wheel 18, which has, vertically moves function, including rear locating shaft 181, Rolling bearing II182, rear fender 183, sealing ring II184, stud 185, top shoe 186, lower slider 187, top shoe are convex The recessed slideway 189 of slideway 188, lower slider, T-shaped slide 190, the T-shaped slideway 191 of lower slider, the lower slider 187 are solid in rectangular-shape Dingan County is on platform 9, and the recessed slideway 189 of lower slider is arranged in the longitudinal direction parallel with the axial direction of carbon steel outer tube 12 The middle part of the upper side of slide 187, the T-shaped slideway 191 of lower slider in handstand T-shaped, longitudinal permeable structures set respectively with The both sides of the recessed slideway 189 of lower slider, and the T-shaped slideway 191 of lower slider is in that gap cooperation is slidably mounted in the T-shaped of handstand T-shaped Slide 190, the T-shaped slide 190 is provided with penetrating shape screwed hole in vertical direction middle part；

The top shoe 186 is slidably fixedly mounted on lower slider 187 in rectangular-shape by stud 185, institute State the convex slideway 188 of top shoe and be arranged on the downside of top shoe 186 in the longitudinal direction parallel with the axial direction of carbon steel outer tube 12 Middle part, and the convex slideway 188 of top shoe in gap coordinate it is longitudinally movable be positioned in the recessed slideway 189 of lower slider, top shoe The convex both sides of slideway 188, the position corresponding with lower slider T-shaped slideway 191 are also respectively provided with being used for for the penetrating shape of vertical direction 4 bolts hole of mounting stud 185；

The rear locating shaft 181 is fixedly installed on top shoe 186 in vertical direction ladder shape shaft, the rolling bearing II182 suits are installed at the rear upper end multi-diameter shaft of locating shaft 181, and rolling bearing II182 inner ring upper and lower sides pass through respectively Rear fender 183, the upper end multi-diameter shaft shoulder of rear locating shaft 181 carry out axially position, and the rear fender 183 is detachably pacified by bolt Loaded on the rear upper end surface of locating shaft 181, the sealing ring II184 is installed at the downside circumferential edge of rear fender 183, for rolling Dynamic bearing II182 is sealed.

Further, the utility model is respectively mounted front end on the casting platform 9 at the axial direction two ends of carbon steel outer tube 12 Locating wheel 14, rear end thrust locating wheel 18 so that carbon steel outer tube 12 being capable of axle when being operated on active carrying roller 6, driven carrying roller 13 To positioning, and front end locating wheel 14 it is longitudinally fixed install, rear end thrust locating wheel 18 has and vertically moves function；

The lower end of stud 185 is passed through to the bolt hole of the convex both sides of slideway 188 of top shoe first when using, makes its lower end In the bolt hole of T-shaped slide 190 of the bolt twist-on in the T-shaped slideway 191 of lower slider, then the front end pipe end of carbon steel outer tube 12 is blocked up Plate 11 is leaned against on the rolling bearing I142 of front end locating wheel 14, is then promoted the top shoe 186 of rear end thrust locating wheel 18, is made it The rolling bearing II182 of top shoe 186 leans against the rear end pipe end closure plate 11 of carbon steel outer tube 12, by the upper end of stud 185 Bolt tightens fixation with nut；

Because the carbon steel outer tube 12 of major diameter does high-speed rotation on active carrying roller 6, driven carrying roller 13, and front end locating wheel 14th, the diameter of rear end thrust locating wheel 18 can not possibly be made big again, therefore front end locating wheel 14, rear end thrust locating wheel 18 Rotating speed is at a relatively high, about in 2 more than 400rpm, and front end locating wheel 14, rear end thrust locating wheel 18 are the adverse circumstances in high temperature Lower work, thus requirement to front end locating wheel 14, rear end thrust locating wheel 18 also greatly improves, therefore use rolling bearing I142 and rolling bearing II182 do front end locating wheel 14, rear end thrust locating wheel 18, it is ensured that not only make carbon steel outer tube 12 in axial direction On can adjust length, and be adapted to the carbon steel outer tube 12 of different-diameter in vertical direction, and ensure that faying face connects Axial motion and vibration will not occur for tactile stabilization.

Further, the utility model about 12 in carbon steel outer tube by installing lower end magnet 15, upper end magnet 17 additional in both sides Form fixed magnetic field so that implement electromagnetic agitation in the process of setting of metal material, make molten metal in electromagnetic force and centrifugal force Semi-solid-state shaping is realized under double action, so as to improve the solidified structure of metal material.

Its operation principle is that in spun casting production process, magnetic is established by installing magnet additional in carbon steel outer tube 12 , cutting magnetic line during liquid metal is rotated with carbon steel outer tube 12, so as to produce electric current, in the dual of magnetic field and electric current Under effect, molten metal will produce stirring behavior, implements strong stirring to it in the process of setting of metal, turns into primary phase Particle shape is suspended in remaining liquid phase, forms a kind of solid-liquid mixtures, the solid-liquid mixtures formed by strong agitation With good mobility, and electromagnetic agitation behavior causes the growth pattern of metal grain to change, the life of metal grain Long mode is changed into isometric crystal type by column crystal type, and the mobility of molten metal will be more preferable, simultaneously because stirring action In the presence of the composition of molten metal is more uniform, will not occur component segregation phenomenon in solidification again.

Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.

Claims (6)

1. a kind of centrifugal casting machine for bimetal composite wear resistant tube road, mainly includes active carrying roller, driven carrying roller, carrying roller branch Frame, carbon steel outer tube, casting bogie, casting ladle, motor, front end locating wheel, rear end thrust locating wheel, lower end magnet, upper end magnet；Institute State active carrying roller and driven carrying roller is arranged on roller rack, active carrying roller is coaxial by coaxial carrying roller connecting shaft, shaft coupling Motor is connected with, driven carrying roller is in parallel to active carrying roller shape and coaxially connected by carrying roller connecting shaft, shaft coupling, the carbon steel Outer tube two ends are separately installed with pipe end closure plate by bolt, and carbon steel outer tube is arranged on active carrying roller and driven carrying roller；It is described to pour It is provided with casting dolly in syphon shape casting runner, the top of the casting runner is placed in the exit of casting ladle, runner of casting Bottom stretched into by pipe end closure plate centre bore in carbon steel outer tube；It is characterized in that：The lower end magnet, upper end magnet presents, Under symmetrical parallel set respectively in carbon steel outer tube axis direction be fixedly installed in platform with the upper and lower side of carbon steel outer tube, lower end magnet On, upper end magnet is fixedly installed in magnet holder, and the magnet holder lower end is detachably fixed the magnet being installed on platform In support position block, the axially position during carbon steel outer tube spun casting is by outside the pipe end closure plate of carbon steel outer tube two ends Side is separately installed with front end locating wheel, rear end thrust locating wheel and carries out axially position.

2. a kind of centrifugal casting machine for bimetal composite wear resistant tube road according to claim 1, it is characterised in that：Institute The support vertical beam I and rack beam for stating magnet holder are in door case type structure setting by welding and the place of intersecting vertically is welded with and added Strengthening tendons plate, support vertical beam II and another rack beam are welded with by welding in door case type structure setting and the place of intersecting vertically Stiffener plate, support vertical beam III and the 3rd rack beam is welded by welding in door case type structure setting and the place of intersecting vertically There is longeron under stiffener plate, support to be respectively welded at support vertical beam I, support vertical beam II, branch erection in carbon steel outer tube axial direction Beam III is in door case type structure both sides vertical direction middle part, and longeron is welded on support in carbon steel outer tube axial direction on support Vertical beam I, support vertical beam II, support vertical beam III are in the middle part of door case type structure top bracket crossbeam, for installing upper end magnetic Iron.

3. a kind of centrifugal casting machine for bimetal composite wear resistant tube road according to claim 1, it is characterised in that：Institute The prelocalization axle for stating front end locating wheel is fixedly installed on platform in vertical direction ladder shape shaft, and rolling bearing I suits are installed At the multi-diameter shaft of prelocalization axle upper end, and rolling bearing I inner rings upper and lower side passes through front pressuring plate, prelocalization axle upper end rank respectively Terraced axle shoulder carries out axially position, and the front pressuring plate is removably mounted to prelocalization axle upper end surface, sealing ring I peaces by bolt At the circumferential edge of front pressuring plate downside.

4. a kind of centrifugal casting machine for bimetal composite wear resistant tube road according to claim 1, it is characterised in that：Institute The lower slider for stating rear end thrust locating wheel is fixedly mounted on platform, pars intermedia of the recessed installation of slide track of lower slider in slide upper side Position, the T-shaped slideway of lower slider sets the both sides with the recessed slideway of lower slider respectively, and the T-shaped slideway of lower slider coordinates slidably in gap T-shaped slide is installed, the T-shaped slide middle part is provided with screwed hole.

5. a kind of centrifugal casting machine for bimetal composite wear resistant tube road according to claim 1, it is characterised in that：Institute The top shoe for stating rear end thrust locating wheel is slidably fixedly mounted on lower slider by stud, and the convex slideway of top shoe is in set The middle part in top shoe downside is put, and the convex slideway of top shoe is positioned over the recessed cunning of lower slider in gap cooperation is longitudinally movable In road, the convex slideway both sides of top shoe, the position corresponding with the T-shaped slideway of lower slider are also respectively provided with 4 bolts hole.

6. a kind of centrifugal casting machine for bimetal composite wear resistant tube road according to claim 1, it is characterised in that：Institute The rear locating shaft for stating rear end thrust locating wheel is fixedly installed on top shoe in ladder shaft-like, after rolling bearing II suits are installed on At the multi-diameter shaft of locating shaft upper end, and rolling bearing II inner rings upper and lower side passes through rear fender, rear locating shaft upper end ladder respectively Axle shoulder carries out axially position, and rear fender is removably mounted to rear locating shaft upper end surface by bolt, and sealing ring II is installed on At the circumferential edge of rear fender downside.