CN114749621A - Cast steel pipe blank connects pipe support - Google Patents

Abstract

The invention discloses a cast steel pipe blank receiving pipe frame for centrifugal casting. The pipe connecting frame comprises a fixed support, a riding wheel support, a positioning device and a jacking mechanism. A connecting pipe V-shaped wheel is fixed on the riding wheel support, and a guide post I and a guide post II are fixed on two sides below the riding wheel support. The cross bar of the positioning device is located above the end of the axle, defining the rise height of the axle. A guide plate II and a guide plate I are fixed on the side plate of the fixed support. And a guide groove II matched with the guide column II is formed between the guide plates II, and the guide column II moves up and down and rotates laterally in the guide groove II. Install the guide way piece between the deflector I, the guide way piece can be rotatory around the staff in the space that deflector I was injectd. The last processing of guide way piece has with I complex guide way I of guide post, and guide post I reciprocates and the side direction is rotatory in guide way I. The pipe blank connecting and tipping device realizes pipe blank connecting and tipping by utilizing the lifting of the jacking mechanism, and the conveying of the pipe blank does not use a crane.

Description

Cast steel pipe blank connects pipe support

Technical Field

The invention is applied to the field of centrifugal casting, relates to production equipment of cast steel pipe billets, and particularly relates to a pipe connecting frame for connecting cast steel pipe billets.

Background

The cast steel pipe blank is mostly cast by a horizontal centrifugal casting method, after the pipe blank is solidified and cooled, the cast steel pipe blank is horizontally pushed out or pulled out from a horizontal pipe die, and the cast steel pipe blank is mostly received by a pipe receiving frame or a pipe receiving device and then is lifted to the next station by a crane. The patent application of publication number CN111531145A discloses a V type wheel takeover device, is located the takeover pit of pipe die pouring end, and the guide bar makes the V type wheel only reciprocate when taking over the hydraulic cylinder is flexible, and the height of V type wheel is corresponding with pipe die inner wall low end. The height of the pipe connecting device can be adjusted up and down to adapt to cast steel pipes of different specifications, but the cast steel pipes must be lifted by a crown block and cannot automatically enter the next station on a V-shaped wheel. Patent application publication No. CN111618269A discloses an automatic rotary adapter support for a double-station centrifuge, which rotates when a cast iron pipe is pulled out from a pipe die, for receiving the cast iron pipe. If the connecting pipe support has an inclination, the cast iron pipe can be rolled to be sent to the next station, but the height of the connecting pipe support is determined, the cast iron pipe cannot be adjusted up and down, and the connecting pipe support is suitable for producing the cast iron pipe with a single specification, is particularly suitable for equipment for fixedly drawing the cast iron pipe and a centrifugal machine, and is not suitable for centrifugal casting of cast steel pipes with multiple specifications.

On the basis of the V-shaped wheel pipe connecting device disclosed in CN111531145A, the invention is additionally provided with a side-turning mechanism, and the cast steel pipe blank is lifted by a crown block without using the crown block, so that the V-shaped wheel pipe connecting device can move up and down, and the cast steel pipe blank can be tipped over and rolled on a working frame to be conveyed to the next station. The publication No. CN213230713U discloses an inverting conveyor, which realizes the inversion of the suction cup 13 in the process of the up-and-down movement of the connecting shaft 117 and the suction cup 13. The up and down movement of the steering block is guided by the guide shaft 118, the turning of the steering block is realized by the steering block 122, the tension spring 123, the long guide groove 11941 and the turning groove 11942, in the process that the steering block 122 moves up and down along the guide groove 11941, the tension spring 123 pulls one end of the steering block 122 into the turning groove 11942, and the other end of the steering block 122 continues to move up and down, so that the 180-degree turning is realized. Publication No. CN108238427A discloses a promote turning device, the hoisting frame moves along the guide way under the drive of sprocket chain, and the one end fixed gear of upset axle on the hoisting frame, gear and the rack cooperation transmission on the mount, when the hoisting frame reciprocated, the gear rotated on the rack to drive the upset of upset axle rotation, realization hoisting frame in-process that reciprocates. Notice No. CN202163872U discloses a lift tipping arrangement, sprocket and chain drive material frame and upset piece promote, and when the upset arm of upset piece got into the upset groove, the lifing arm continued to rise to make the material frame upset. This structure is similar with the feed mechanism of cupola, and feed mechanism's wire rope drives the feeding funnel and upwards promotes along the guide way slope, and when ascending to the top, the wheel that rolls is spacing motionless by the guide way, and wire rope continues to promote for the feeding funnel upset is tumbled the material in the cupola.

Disclosure of Invention

The technical problem solved by the invention is as follows: the pipe connecting frame for the cast steel pipe blank can adjust the position of the pipe connecting up and down, and the pipe blank is tipped to enter the working frame after the pipe connecting without using a crown block for hoisting.

The technical scheme adopted by the invention is as follows: the cast steel pipe blank pipe receiving frame comprises a fixed support, a riding wheel support, a positioning device and a jacking mechanism. The upper surface of the supporting plate of the riding wheel bracket is fixed with a V-shaped wheel and a wheel shaft, the wheel shaft is rotatably connected with the V-shaped wheel, and two sides of the lower surface of the supporting plate are fixedly connected with a guide post I and a guide post II. The positioning device comprises an integrated vertical rod and a cross rod, wherein the cross rod is positioned on one side of the guide post II and above the end part of the wheel shaft to limit the rising height of the wheel shaft. The jacking mechanism is hinged with the fixed support and the riding wheel support, so that the riding wheel support can be lifted and rotated conveniently. The fixed support is positioned at the lower part of the riding wheel support, a guide plate II is fixed on the side plate of one side of the guide column II, and a guide plate I is fixed on the side plate of the other side. And a guide groove II is formed between the guide plates II and is matched with a guide column II, and the guide column II can move up and down and rotate laterally in the guide groove II. A guide groove block is arranged between the guide plates I and is hinged with a small shaft fixed on the guide plates I, and the guide groove block can rotate around the small shaft in a space limited by the guide plates I. The guide way block is provided with a guide way I, the guide way I is matched with a guide column I, and the guide column I can move up and down and rotate laterally in the guide way I.

Furthermore, a steel plate is fixed on a side plate of the fixed support, and a through hole or an opening which is convenient for the riding wheel support to move up and down and rotate is processed on the steel plate.

Furthermore, the positioning device is movably connected, and the vertical rod penetrates through the through hole of the supporting plate and the through hole and the lower part of the steel plate to be connected with the positioning nut. When the jacking mechanism lifts the supporting wheel bracket, the wheel shaft of the V-shaped wheel jacks the cross rod until the positioning nut contacts the lower surface of the steel plate.

Furthermore, positioner fixed connection, the through-hole that the montant passed the backup pad is fixed on the steel sheet, and the montant is fixed on the curb plate of fixed bolster.

Furthermore, the guide groove block is connected with the small shaft through a torsion spring, and the guide groove block is rotated and returned through the elastic force of the torsion spring. Or the lower part of the guide groove block is connected with a tension spring, and the other end of the tension spring is fixed on the guide plate I. The tension spring also enables the guide groove block to rotate and return

Further, a coiling frame is sleeved above the cross rod and fixedly installed on the supporting plate. The wire rod frame can improve the stress state of the cross rod and can force the cross rod to descend.

Further, in order to reduce the friction force, the cross bar can be replaced by a rotating roller.

Furthermore, a side plate of the fixed support is provided with a limiting cross rod, and the limiting cross rod limits the turning angle of the riding wheel support.

Further, the jacking mechanism can be one of a hydraulic cylinder, an air cylinder, a screw rod, a connecting rod or other jacking mechanisms.

The invention has the beneficial effects that: the invention realizes the actions of pipe connection, tipping and the like of the pipe billet through the lifting action of the hydraulic cylinder, so that the cast steel pipe billet automatically enters the next station, and the cast steel pipe billet is conveyed without using a crane. The invention has simple structure and low failure rate, and is suitable for mass production of industrial production lines.

Drawings

FIG. 1 is a schematic front view of the structure of example 1, and a schematic cross-sectional view taken along line D-D in FIGS. 2 and 4;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 1;

FIG. 5 is a schematic cross-sectional view C-C of FIG. 1;

FIG. 6 is a schematic view before operation of embodiment 1;

FIG. 7 is a schematic view showing a tube-turning action in embodiment 1;

FIG. 8 is a schematic front view of the structure of example 2;

FIG. 9 is a schematic front view of the structure of embodiment 3;

FIG. 10 is a schematic front view of the structure of example 5;

wherein: the device comprises a 1-V-shaped wheel, a 2-wheel shaft, a 3-support plate, a 4-guide post I, a 5-guide groove block, a 6-small shaft, a 7-side plate, an 8-hydraulic cylinder, a 9-guide plate II, a 10-positioning nut, a 11-vertical rod, a 12-cross rod, a 13-steel plate, a 14-working frame, a 15-guide post II, a 16-guide groove I, a 17-guide groove II, a 18-guide plate I, a 19-counterweight, a 20-tension spring, a 21-limiting cross rod and a 22-coiling frame.

Detailed Description

The following left and right, up and down, front and back, etc. are only for the purpose of simplifying the positional relationship of the structural members, and are not intended to limit the present invention. Unless specifically stated otherwise, such terms as "connected," "mounted," "disposed," and "designed" are to be construed broadly and encompass both fixed and removable connections, including direct and indirect connections. The fixed connection includes, but is not limited to, welding, fastener connection, riveting, and may be integral or fixed connection through other intermediate components.

In the following description, the longitudinal direction and the axial direction both refer to the center line direction of the blank tube, and the center line direction is the front and back, the both sides of the center line are the left and right, and the top and bottom of the center line are the top and bottom, with the center line of the blank tube as a reference. That is, the left and right are the left and right of the drawings other than fig. 5, the top and bottom are the top and bottom directions of the drawings other than the top view and the top view cross-sectional view, and the front and back are the top and bottom directions of all the top view and top view cross-sectional views.

Example 1.

The pipe receiving frame structure of the embodiment is shown in the attached figures 1-5, and comprises a fixed support fixed on the ground, a riding wheel support capable of moving up and down and rotating, a positioning device for limiting the upward moving position of the riding wheel support and forcing the riding wheel support to rotate, and a hydraulic cylinder 8. When the cast steel pipe blank is pushed out or pulled out from the centrifuge, at least three pipe receiving frames are arranged in the axial direction of the pipe blank so as to stably support the pushed out or pulled out pipe blank and prevent the pipe blank from tilting when the pipe blank is pushed out or pulled out.

As shown in attached figures 1 and 2, the riding wheel support comprises a V-shaped wheel 1, a wheel shaft 2, a supporting plate 3, a guide post I4, a guide post II 15 and the like. The V-shaped wheel 1 is used for bearing a cast steel pipe blank, the wheel shaft 2 is fixedly arranged on the supporting plate 3, and the V-shaped wheel 1 and the wheel shaft 2 are rotatably connected through a bearing and can rotate around the wheel shaft 2. When the pipe blank is pushed out or pulled out axially, rolling friction is generated between the pipe blank and the V-shaped wheel 1, so that the friction force is reduced, and the pipe blank is conveniently pushed out or pulled out. Guide post I4 and guide post II 15 are fixed connection respectively in the left and right sides of the lower surface of backup pad 3, cooperate with guide way I16 and guide way II 17 on the fixed bolster respectively, play the guide effect to the rising and the rotation of riding wheel support, guarantee the rising of riding wheel support and rotate on left and right sides direction vertical plane. The middle part of the lower surface of the supporting plate 3 is hinged with the upper end of a hydraulic cylinder 8, and the lower end of the hydraulic cylinder 8 is hinged with a fixed bracket.

The positioning device comprises a vertical rod 11 and a cross rod 12. As shown in figure 5, the cross rod 12 and the vertical rod 11 are integrally connected, the vertical rod 11 respectively penetrates through the support plate 3 and the steel plate 13, and the lower part of the vertical rod is in threaded connection with the positioning nut 10. The lifting height of the cross rod 12 is adjusted by adjusting the position of the positioning nut 10 on the vertical rod 11. As shown in fig. 1, the crossbar 12 is located above the left end of the axle 2. When the hydraulic cylinder 8 lifts the supporting wheel bracket, the left end of the wheel shaft 2 jacks up the cross rod 12 to lift. When the set nut 10 contacts the lower surface of the steel plate 13, the rail 12 stops rising and the idler support rises vertically to the highest point, which corresponds to the height of the work frame 14. The hydraulic cylinder 8 continues to lift the riding wheel bracket, as shown in fig. 7, the cross rod 12 limits the left end of the wheel shaft 2 to rise, and when the right end of the wheel shaft 2 rises, the V-shaped wheel 1 is turned over, so that the tube blank on the V-shaped wheel 1 rolls into the working frame 14. When the hydraulic cylinder 8 retracts and the riding wheel bracket descends, the positioning device can descend under the action of self weight.

A wire rod frame 22 is designed above the cross rod 12, and the wire rod frame 22 is fixedly connected with the upper surface of the supporting plate 3 and is sleeved in the cross rod 12 for installation. The wire rod frame 22 has two functions, namely, the stress of the U-shaped cross rod 12 is improved, the cross rod 12 is prevented from deforming, and the cross rod 12 can be forced to descend when the vertical rod 11 is blocked and cannot descend under the action of gravity.

As shown in fig. 1 and 4, the fixing bracket includes a side plate 7 and a steel plate 13. Two groups of guide plates II 9 are fixedly welded on the left side plate, and a guide groove II 17 is formed in the middle of each group of guide plates II 9. The guide groove II 17 is matched with the guide column II 15, and the up-down movement or the rotation movement of the guide column II 15 is in the guide groove II 17. Two guide plates I18 are fixedly mounted on the right side plate, the upper portions of the guide plates I18 are fixedly connected with a small shaft 6, the small shaft 6 is hinged with a guide groove block 5 through a torsion spring, and the guide groove block 5 can rotate around the small shaft 6 in a space limited by the guide plates I18. As shown in fig. 1, a groove corresponding to the shape of the guide groove block 5 is formed at the lower portion of the guide plate i 18 to fix and position the guide groove block 5. Under the condition of no external force, the guide groove block 5 is returned to the groove for fixing under the action of the torsion spring. A guide groove I16 is machined in the guide groove block 5. The guide groove I16 is matched with the guide column I4. Even if a groove corresponding to the shape of the guide groove block 5 is not machined, the guide groove I16 limits the right side of the riding wheel support because the small shaft 6 is fixedly installed, and actually the small shaft 6 limits the right side of the riding wheel support. The guide groove I16 limits the displacement of the guide column I4 in the front-back direction, the guide groove II 17 limits the displacement of the guide column II 15 in the front-back direction, and the guide groove I16 and the guide groove II 17 limit the displacement of the riding wheel support in the front-back direction together. The small shaft 6 limits the displacement of the riding wheel bracket in the right direction, and the guide groove II 17 limits the displacement of the riding wheel bracket in the left direction. Thus, the small shaft 6, the guide groove I16 and the guide groove II 17 jointly ensure that the riding wheel bracket has no displacement in the front-back and left-right directions in the ascending and descending processes and can only vertically ascend and descend.

The steel plate 13 is fixed on the top surface of the side plate 7, as shown in fig. 3, through holes are processed on the steel plate 13 at positions corresponding to the guide posts II 15 and the guide grooves II 17, and the size of the through holes meets the requirements of up-down movement and rotation of the guide posts II 15. The position matched with the vertical rod 11 is provided with a through hole which meets the requirement that the vertical rod 11 moves up and down. The positions corresponding to the guide post I4 and the guide groove I16 are provided with notches, and the notches meet the requirements of up-down movement and rotation of the guide post I4. A through hole is processed in the center, and the through hole meets the requirements of up-and-down movement and small-angle rotation of the hydraulic cylinder 8.

The state of the invention before use is shown in figure 6, the hydraulic cylinder 8 is retracted, and the riding wheel bracket is positioned on the steel plate 13 of the fixed bracket. When the drawn or pushed cast steel pipe blank needs to be received, the hydraulic cylinder 8 is lifted, and the guide columns I4 and II 15 of the supporting wheel bracket vertically move upwards under the action of the guide grooves I16 and II 17 respectively, so that the V-shaped wheel 1 moves upwards to the height of the lower edge of the pipe blank to keep the center line of the pipe blank and the center line of the pipe die to be basically horizontally consistent when the pipe blank is received. After the V-shaped wheel 1 bears the pipe blank, the hydraulic cylinder 8 continues to lift, and the wheel shaft 2 drives the cross rod 12 of the positioning device to lift. When the positioning nut 10 contacts the lower surface of the steel plate 13, the cross rod 12 stops rising, and the riding wheel bracket vertically rises to the highest point, as shown in fig. 1, and at this time, the cross rod 12 is fixed. The pneumatic cylinder 8 continues to rise again, and the position that the riding wheel support contacted with horizontal pole 12 can't rise, can only rotate around horizontal pole 12, as shown in figure 7, stand II 15 inclines right in guide way II 17, and stand I4 rotates right in guide way I16 and slides, and the torsional spring resistance on staff 6 is overcome in the slide right of stand I4 for the guide way piece 5 is rotatory right around staff 6.

After the pipe turning action is finished, the cast steel pipe blank rolls into the working frame 14, the hydraulic cylinder 8 retracts, the torsion spring enables the guide groove block 5 to return and rotate to act on the guide column I4, and the riding wheel support is enabled to return and be vertical. The guide post I4 and the guide post II 15 are positioned in the guide groove I16 and the guide groove II 17 in the whole ascending and pipe overturning actions, so that the guide posts are still positioned in the guide groove I16 and the guide groove II 17 when returning. With the cylinder 8 retracted to the bottom, the present invention returns to the state of fig. 6.

The key for realizing the rotation and the tipping of the pipe connection frame is the design position of the small shaft 6, when the riding wheel support is vertically lifted to the highest point by the hydraulic cylinder, the height of the small shaft 6 is not higher than the lower end of the guide post I4, otherwise, the riding wheel support cannot rotate. Meanwhile, the rotation arc line of the lower end of the guide post I4, as shown in FIG. 7, must not intersect the rotation trajectory of the guide groove I16, otherwise the guide post I4 cannot rotate. That is, during the rotation of the guide post i 4, the distance from the contact point of the guide post i 4 with the guide groove i 16 to the center of the small shaft 6 is changed, and the distance is only increased, and if the distance is decreased, the guide post i 4 cannot rotate.

The left and right sides and the front and back sides of the tube blank are opposite, if the left and right direction mirror images and the front and back direction mirror images of the attached drawing of the embodiment are exchanged, only the direction of turning the tube blank is changed, and the function of the embodiment is not changed.

Example 2.

This example differs from example 1 in two ways: firstly, a coiling frame 22 is removed, and a counterweight 19 is added at the lower end of a vertical rod 11; and secondly, the torsion spring is replaced by a tension spring 20, and the tension spring 20 is connected with the lower part of the guide groove block 5 and fixed on the guide plate I18. The structure schematic diagram is shown in figure 8.

Under the normal condition, the positioning device can fall under the action of self-weight, and the invention adds the counter weight 19 to increase the weight of the positioning device so as to ensure that the positioning device can fall more smoothly. The coiling frame 22 is removed, the effect of improving the stress of the cross rod 12 is lost, and the rib plate is welded on the cross rod 12 to increase the bending strength of the cross rod and avoid the bending deformation of the cross rod 12.

The function of the torsion spring in embodiment 1 is to rotate the guide slot block 5 back, and the tension spring 20 is adopted in this embodiment, so that the same function can be achieved.

Example 3.

In the above two embodiments, the riding wheel support rotates rightwards around the cross bar 12 of the positioning device as the center, the guide groove block 5 rotates rightwards around the small shaft 6, the center of the small shaft 6 is located on the left side of the contact point of the guide column I4 and the guide groove block 5, if no torsion spring or tension spring is used for forcibly returning the guide groove block 5 to the left-handed position, when the riding wheel support descends, the guide column I4 also descends, and the torque generated by the contact point of the guide column I4 and the guide groove block 5 can continue rotating rightwards on the guide groove block 5, so that the riding wheel support is failed to descend, and equipment accidents are seriously caused.

In this embodiment, as shown in fig. 9, when the roller support rotates rightwards around the cross bar 12 to the limit position, the center of the small shaft 6 is located at the right side of the contact point of the guide post i 4 and the guide groove block 5. When the riding wheel support descends, the torque generated by the contact point of the guide column I4 and the guide groove block 5 inevitably rotates the guide groove block 5 to the left to return, and the structure saves a torsion spring or a tension spring.

Example 4.

In the above embodiment, the vertical rod 11 of the positioning device can move up and down freely, and the rising height of the cross rod 12 is adjusted by the positioning nut 10, mainly based on the consideration of the angle which does not hinder the pushing out or pulling out of the tube blank. If the width of the V-shaped wheel is larger than the diameter of the tube blank, the pushed or pulled tube blank does not conflict with the positioning device, and the vertical rod 11 of the positioning device can penetrate through the hole in the supporting plate 3 and is fixedly connected with the steel plate 13.

To reduce the friction between the crossbar 12 and the axle 2, the crossbar 12 may be replaced by a rotating roller, so that the sliding friction of the axle 2 and the crossbar 12 is converted into rolling friction with the rotating roller.

Example 5.

In the above embodiment, the steel plate 13 mainly functions to limit the height of the positioning device, and the steel plate has the auxiliary functions to support the riding wheel bracket, and limit the turning angle and the descending height of the riding wheel bracket. When the vertical bars 11 of the positioning device are fixed to the side plates 7, the steel plates 13 can be omitted, as shown in fig. 10. The side plate 7 is used for supporting the riding wheel bracket, limiting the descending height of the riding wheel bracket, and increasing the limiting cross rod 21 to assist the overturning angle of the limiting riding wheel bracket. If the guide plate I18 is manufactured by adopting a casting process, the guide plate I and the side plate 7 can be combined into a whole.

In all the above embodiments of the present invention, the hydraulic cylinder may be replaced by a cylinder or other jacking mechanism, such as a screw, a connecting rod, etc., as long as jacking within a limited height range can be achieved.

At present, the invention basically completes drawing design and prepares equipment manufacture. In order to facilitate maintenance and replacement of the V-shaped wheels, the V-shaped wheels are uniform in size. The positioning device is fixed on the pipe connecting frame of the small-caliber cast steel pipe billet and designed according to the embodiment 4, and the positioning device is free on the pipe connecting frame of the large-caliber cast steel pipe billet and designed according to the embodiment 1, the design scheme is modified, and the position of the small shaft is calculated and adjusted according to the embodiment 3.

According to the invention, through one lifting action of the jacking mechanism, actions such as lifting connection pipes of the V-shaped wheels, tipping and pipe overturning of the V-shaped wheels and the like are realized, so that the cast steel pipe blank automatically enters the working frame and rolls into the next station, a crane is not used for conveying the cast steel pipe blank, and safe operation is realized. The operation of hook unhooking and the like for hoisting the tube blank is avoided, so that the production rhythm is accelerated. The overhead traveling crane and the ground command operator are saved, and the labor cost is reduced. The invention has simple structure, low manufacturing precision and low failure rate, is suitable for large-scale production of industrial production lines and lays a foundation for automatic production.

Claims (10)

1. The utility model provides a cast steel pipe base connects pipe support which characterized in that: comprises a fixed bracket, a riding wheel bracket, a positioning device and a jacking mechanism;

the upper surface of a supporting plate (3) of the riding wheel support is fixed with a V-shaped wheel (1) and a wheel shaft (2), the wheel shaft (2) is rotatably connected with the V-shaped wheel (1), and two sides of the lower surface of the supporting plate (3) are fixedly connected with a guide post I (4) and a guide post II (15);

the positioning device comprises an integrated vertical rod (11) and a cross rod (12), wherein the cross rod (12) is positioned on one side of the guide post II (15) and above the end part of the wheel shaft (2) to limit the lifting height of the wheel shaft (2);

the jacking mechanism is hinged with the fixed support and the riding wheel support;

the fixed support is positioned at the lower part of the riding wheel support, a guide plate II (9) is fixed on a side plate on one side of the guide post II (15) of the fixed support, and a guide plate I (18) is fixed on a side plate on the other side of the fixed support; a guide groove II (17) is formed between the guide plates II (9), the guide groove II (17) is matched with a guide column II (15), and the guide column II (15) can move up and down and rotate laterally in the guide groove II (17); a guide groove block (5) is arranged between the guide plates I (18), the guide groove block (5) is hinged with a small shaft (6) fixed on the guide plates I (18), and the guide groove block (5) can rotate around the small shaft (6) in a space limited by the guide plates I (18); processing has guide way I (16) on guide way piece (5), guide way I (16) and guide post I (4) cooperation, guide post I (4) can reciprocate and lateral rotation in guide way I (16).

2. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: and a steel plate (13) is fixed on a side plate of the fixed support, and a through hole or an opening which is convenient for the riding wheel support to move up and down and rotate is processed on the steel plate (13).

3. The cast steel pipe blank pipe receiving frame according to claim 2, characterized in that: the positioning device is movably connected, and the vertical rod (11) penetrates through the through hole of the supporting plate (3) and the through hole and the lower part of the steel plate (13) to be connected with the positioning nut (10).

4. The pipe receiving frame for the cast steel pipe blank according to claim 2, characterized in that: the positioning device is fixedly connected, and the vertical rod (11) penetrates through a through hole of the supporting plate (3) and is fixed on the steel plate (13) or the vertical rod (11) is fixed on a side plate of the fixed support.

5. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: the guide groove block (5) is connected with the small shaft (6) through a torsion spring, and the guide groove block (5) rotates to return through the elastic force of the torsion spring.

6. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: the lower part of the guide groove block (5) is connected with a tension spring (20), and the other end of the tension spring (20) is fixed on the guide plate I (18).

7. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: the coiling frame (22) is sleeved above the cross rod (12), and the coiling frame (22) is fixedly installed on the supporting plate (3).

8. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: the cross rod (12) is replaced by a rotating roller.

9. The cast steel pipe blank pipe receiving frame according to claim 1, characterized in that: and a side plate of the fixed support is provided with a limiting cross rod (21), and the limiting cross rod (21) limits the turning angle of the riding wheel support.

10. The pipe receiving frame for the cast steel pipe blank according to claim 1, characterized in that: the jacking mechanism is a hydraulic cylinder, or an air cylinder, or a screw rod, or a connecting rod.

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