CN211052159U - Pyramid shaft type coiler mandrel with mechanical jaw - Google Patents

Abstract

The utility model discloses a pyramid shaft type coiler mandrel with a mechanical jaw, which comprises a pyramid main shaft, three sector plates, a jaw sector plate, a spline housing, a bearing assembly, an axial wedge and a mechanical jaw assembly, wherein the mechanical jaw assembly comprises a jaw plate I, a jaw plate II, a jaw plate III, a plurality of springs and a plurality of waist-shaped jacking blocks; the axial wedge is arranged in an axial through hole in the center of the pyramid main shaft; the outer circular surface of the jaw sector plate is provided with a groove in an axial through mode, the mechanical jaw assembly is arranged in the groove, the jaw plate I and the jaw plate II are fixed on the jaw sector plate, the jaw plate III is arranged between the jaw plate I and the jaw plate II, the spring is arranged in a radial blind hole of the jaw sector plate, and the waist-shaped top block is arranged in a waist-shaped groove of the axial wedge, the pyramid spindle and the jaw sector plate; the waist-shaped top block and the spring do not interfere. The utility model discloses both inherit the great coiling tension of the shaft type reel of pyramid, avoided hydraulic pressure again to keep silent with high costs and easily leak the scheduling problem.

Description

Pyramid shaft type coiler mandrel with mechanical jaw

Technical Field

The utility model relates to a metallurgical machinery coiling equipment relates to a coiler mandrel particularly.

Background

The cold rolling coiler is auxiliary equipment of a steel rolling workshop for coiling cold rolled steel into a reel shape, and is arranged behind a finished product stand on a cold strip steel continuous rolling mill; the single-stand reversible cold-strip rolling mill is arranged in front of and behind the rolling mill. In addition, it is also installed in various finishing units such as continuous pickling line, slitting, annealing, coating, etc.

The prior pyramid spindle coiler mandrel has the following disadvantages as shown in fig. 5: firstly, keep silent for hydraulic pressure keep silent, its specific structure is: a plurality of jaw hydraulic cylinders 32 are arranged in the jaw sector plate 31 to push the jaw plate 33 to move outwards, and complicated oil paths need to be configured, so that the hydraulic system has high cost and high processing and manufacturing difficulty, and once the hydraulic system leaks, the surface of the strip steel and the workshop environment are polluted, and the production is influenced; secondly, in order to reduce the spare parts of the winding drum, a steel mill requires that one winding drum can realize the winding in two directions, and because the winding direction is determined by three jaw plates in the prior art, and the three jaw plates cannot realize the position adjustment and can only realize the winding in one direction, the common solution is to add the jaw sector plate spare parts, and can realize the reversing function of the winding drum after replacing the jaw sector plate spare parts, however, the excircle processing of the sector plate generally adopts a combined vehicle process, and a single jaw sector plate is difficult to process; the cold rolling of the winding drum generally adopts point lubrication, the manual timing oil filling of designated lubricating points of the winding drum is needed, the cold rolling needs to be carried out when the winding drum is stopped, the efficiency is low, and some lubricating points are easy to leak; and fourthly, the bearing assembly 34 is connected with the pyramid shaft 35 and moves left and right along with the pyramid shaft, and when the coiler mandrel works, the external support supports the bearing assembly, so that the bearing assembly and the mandrel can only be in line contact, the stress condition is poor, and the mandrel is difficult to bear larger tension.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a take mechanical jaw's shaft-type coiler reel of pyramid is provided, it has both inherited the shaft-type reel of pyramid great coiling tension, has avoided hydraulic pressure again to keep silent with high costs and easily leak the scheduling problem. Meanwhile, the coiling in two directions can be realized by adjusting the positions of the internal parts of the mechanical jaw, and the jaw sector plate does not need to be separately processed, so that the production cost is greatly reduced. In addition, it has realized the self-lubricate function to the reel, has improved work efficiency. Here, the reel can also be subjected to a large tension.

The utility model relates to a take shaft-type coiler mandrel of pyramid of mechanical jaw, it includes pyramid main shaft, three sector plates, a vice jaw sector plate, spline housing, bearing assembly, the outside of pyramid main shaft is provided with sector plate, vice jaw sector plate, pyramid main shaft and sector plate, vice jaw sector plate all contact through a plurality of sections inclined planes, the spline housing is on the excircle face of pyramid main shaft, bearing assembly sets up at the breathing side end, it still includes axial slide wedge, mechanical jaw subassembly includes jaw board I, jaw board II, jaw board III, a plurality of spring, a plurality of waist shape kicking block; the axial wedge is arranged in an axial through hole in the center of the pyramid main shaft, and the cylindrical surface of the axial wedge is matched with the axial through hole; the outer circle surface of the jaw sector plate is provided with a groove in an axial through mode, the mechanical jaw assembly is arranged in the groove, the jaw plate I and the jaw plate II are fixed on the jaw sector plate, the jaw plate III is arranged between the jaw plate I and the jaw plate II, the spring is arranged in a radial blind hole of the jaw sector plate, the top surface of the spring is in contact with the lower plane of the jaw plate III, the waist-shaped top block is arranged in a waist-shaped groove of the axial wedge, the pyramid spindle and the jaw sector plate, the bottom surface of the waist-shaped top block is in contact with the inclined bottom surface of the waist-shaped groove of the axial wedge, and the top surface of the waist-shaped top block is in contact with the lower plane of; the waist-shaped top block and the spring do not interfere.

Furthermore, the groove is a stepped groove with deep middle and shallow two sides, the jaw plate III is arranged in the deep groove, the jaw plate I and the jaw plate II are respectively arranged in the shallow grooves on the two sides and are fixed on the fan-shaped plate through screws, the edges of the jaw plate I corresponding to the jaw plate III are inclined edges, the inclined edges are wave-shaped, the edges of the jaw plate II corresponding to the jaw plate III are straight edges, and the two straight edges are in contact with each other.

Furthermore, the positions of screw holes on the jaw plate I and the jaw plate II are the same, and the sizes of the screw holes are the same.

Furthermore, a plurality of large waist-shaped grooves with inclined bottom surfaces are arranged on the cylindrical surface of the axial wedge, a middle waist-shaped groove which is through up and down is arranged at the position of the pyramid main shaft corresponding to the large waist-shaped groove, a small waist-shaped groove which is through up and down is arranged at the position of the jaw sector plate corresponding to the middle waist-shaped groove, the waist-shaped jacking block is positioned in the three waist-shaped grooves, the lower part of the waist-shaped jacking block is positioned in the large waist-shaped groove, the bottom surface of the waist-shaped groove is contacted with the inclined bottom surface of the large waist-shaped groove, the middle part of the waist-shaped groove is positioned in the middle waist-shaped groove, the upper.

Furthermore, a small key groove is formed in the inclined surface of the pyramid main shaft, a large key groove is formed in the inclined surfaces of the sector plate and the jaw sector plate, the small key groove and the large key groove form a T-shaped key groove, and the T-shaped key is arranged in the T-shaped key groove and fastened on the pyramid main shaft through screws.

Furthermore, the pyramid shaft type coiler mandrel further comprises a hydraulic system, the hydraulic system comprises a rotary hydraulic cylinder, a hydraulic rotary joint, a dry oil rotary joint and a pull rod, the rotary hydraulic cylinder is arranged on the transmission right side of the pyramid main shaft and comprises a cylinder body, a piston I, a piston II and a plurality of lubricating oil pipes; the right end of the cylinder body is connected with a hydraulic rotary joint dry oil rotary joint, the piston I is connected with the pyramid main shaft through threads, the pull rod is arranged in the axial through hole, the left end of the pull rod is connected with the axial wedge, and the right end of the pull rod is matched with an inner hole of the piston II.

Furthermore, the hydraulic system also comprises an oil way arranged in the pyramid main shaft and an oil way arranged in the axial wedge; the oil way in the pyramid main shaft 1 comprises a plurality of axial oil holes, a plurality of radial oil holes I, a radial oil hole II, a radial oil hole III and a radial oil hole IV, the axial oil holes are communicated along the axial direction of the pyramid main shaft 1, the outer end of the radial oil hole I is opened on the inclined plane of the pyramid main shaft 1, and the inner end of the radial oil hole I is communicated with the axial oil holes; the outer end of the radial oil hole II is communicated with the axial oil hole, and the inner end of the radial oil hole II is opened in the axial through hole; the outer end of the radial oil hole III is opened on the surface of a bearing inner ring in the bearing assembly, the inner end of the radial oil hole III is communicated with the axial oil hole, the outer end of the radial oil hole IV is opened on the outer circular surface of the pyramid main shaft, which is contacted with the spline housing, and the inner end of the radial oil hole IV is opened on the axial oil hole; the oil path in the axial wedge comprises an axial oil groove and a radial oil hole V; the axial oil groove is arranged on the outer circular surface of the axial wedge and is communicated with the radial oil hole II; one end of the radial oil hole V is opened on the inclined bottom surface of the kidney-shaped groove, and the other end of the radial oil hole V is communicated with the axial oil groove.

Further, the pyramid shaft type coiler drum further comprises an extension shaft, and the bearing assembly and the extension shaft form a head support assembly; the inner hole of the extension shaft is sleeved on the pyramid main shaft, the end face of the extension shaft is connected to the end face of the sector plate through a bolt, and the bearing assembly is fixed on the extension shaft.

The utility model has the advantages that: the jaw is a mechanical jaw, a jaw hydraulic cylinder and a complex oil circuit are not needed to be configured, and the jaw plate III can move outwards to press the strip head, so that the strip steel can be coiled. Therefore the utility model discloses low in production cost, processing are convenient, have avoided hydraulic system to leak the pollution to strip steel surface and workshop environment simultaneously, have guaranteed production efficiency. Therefore, the utility model has the advantages of large tension of the pyramid shaft type winding drum and no oil leakage of the mechanical jaw. The mechanical jaw assembly can realize the jaw reversing function through the exchanging installation of the jaw plate I and the jaw plate II and the turning installation of the jaw plate III, no redundant spare parts are needed, and the cost is saved; by arranging a hydraulic system and a related oil way, the automatic lubrication function is realized in the winding drum, the link of manually filling lubricating oil is omitted, and the efficiency is improved; and fourthly, the external support and the support bearing assembly are in surface contact, the stress condition is good, and the winding drum can bear larger tension.

Drawings

FIG. 1 is a front view of a pyramid spool coiler drum with mechanical jaws according to the present invention;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 above line K-K;

FIG. 3 is an enlarged schematic view of the portion of FIG. 1 below line K-K;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 5 is a front view of a prior art pyramidal spool coiler drum;

in the figure: 1. a pyramid main shaft; 2. a sector plate; 3. a jaw sector plate; 4. a T-shaped bond; 5. a T-shaped key slot; 6. a groove; 7. a rotary hydraulic cylinder; 8. an axial oil hole; 9. a radial oil hole I; 10. an axial through hole; 11. a waist-shaped groove; 12. A jaw plate I; 13. a jaw plate II; 14. a jaw plate III; 15. a spring; 16. a waist-shaped top block; 17. an axial wedge; 18. a bearing assembly; 19. an extension shaft; 20. a radial oil hole II; 21. an axial oil groove; 22, a radial oil hole V; 23. a radial oil hole III; 24. a radial oil hole IV; 25. a spline housing; 7.1, a piston I; 7.2, piston II; 7.3, lubricating oil pipes; 7.4, a hydraulic rotary joint; 7.5, a dry oil rotary joint; 7.6, a pull rod; 7.7, cylinder body.

Detailed Description

The technical solution of the present invention will be apparent from and fully described in the following detailed description of the preferred embodiments with reference to the accompanying drawings. It should be apparent that the described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, fig. 2, fig. 3, fig. 4, the utility model relates to a take mechanical jaw's shaft-type coiler mandrel, it includes pyramid main shaft 1, three sector plates 2, a jaw sector plate 3, spline housing 25, bearing assembly 18, the outside of pyramid main shaft 1 is provided with sector plate 2, jaw sector plate 3, pyramid main shaft 1 and sector plate 2, jaw sector plate 3 all contact through a plurality of sections inclined planes, spline housing 25 cover is on the outer disc of pyramid main shaft 1, bearing assembly 18 sets up at the end of breathing out, it still includes axial wedge 17, mechanical jaw subassembly includes jaw board i 12, jaw board ii 13, jaw board iii 14, a plurality of spring 15, a plurality of waist shape kicking block 16; the axial wedge 17 is arranged in the axial through hole 10 at the center of the pyramid spindle 1, and the cylindrical surface of the axial wedge is matched with the axial through hole 10; the outer circular surface of the jaw sector plate 3 is provided with a groove 6 in a through mode along the axial direction, the mechanical jaw assembly is arranged in the groove 6, a jaw plate I12 and a jaw plate II 13 are fixed on the jaw sector plate 3, a jaw plate III 14 is arranged between the jaw plate I12 and the jaw plate II 13, a spring 15 is arranged in a radial blind hole of the jaw sector plate 3, the top surface of the spring is contacted with the lower plane of the jaw plate III 14, a waist-shaped top block 16 is arranged in waist-shaped grooves of the axial wedge 17, the pyramid spindle 1 and the jaw sector plate 3, the bottom surface of the waist-shaped groove is contacted with the inclined bottom surface of the waist-shaped groove of the axial wedge 17, and the top surface of the waist-shaped top block is contacted with the lower plane of the jaw plate; the kidney shaped top piece 16 and the spring 15 do not interfere.

Before coiling the strip steel, the coiling drum is in a reducing state, and the jaw is in an opening state. When steel is required to be coiled, firstly, the pyramid spindle 1 moves rightwards along the axial direction, the pyramid spindle 1 pushes the three sector plates 2 and the jaw sector plate 3 to move radially outwards through the inclined plane of the pyramid spindle 1, the winding drum gradually expands to a diameter expansion state, the tape head is inserted into the jaw at the moment, then, the axial wedge 17 moves rightwards along the axial direction, the axial wedge 17 pushes the waist-shaped top block 16 through the inclined bottom surface of the axial wedge to overcome the tensile force of the spring 15 to work the jaw plate III 14, the jaw plate III 14 moves radially outwards until the tape head is pressed, and then, the winding drum rotates to reel strip steel into a coil. When the coil is unloaded, the axial wedge 17 moves leftwards along the axial direction, the waist-shaped top block 16 and the jaw plate III move radially inwards until returning to the lowest position, the jaw is opened under the action of the tension of the spring 15, then the pyramid spindle 1 moves leftwards along the axial direction, the three sector plates 2 and the jaw sector plate 3 move radially inwards to enable the coil to gradually reach a diameter reducing state, and then the coil unloading is started.

The utility model discloses a keep silent for mechanical vice jaw, need not dispose the pneumatic cylinder of keeping silent and the loaded down with trivial details oil circuit of processing, jaw plate III 14 just can outwards move and compress tightly the tape head to the realization batches to belted steel. Therefore the utility model discloses low in production cost, processing are convenient, have avoided hydraulic system to leak the pollution to strip steel surface and workshop environment simultaneously, have guaranteed production efficiency. Therefore, the utility model has the advantages of large tension of the pyramid shaft type winding drum and no oil leakage of the mechanical jaw.

Example 2

As shown in fig. 4, the present invention discloses a pyramid shaft type coiler mandrel, wherein: the groove 6 is a stepped groove with deep middle and shallow two sides, wherein the jaw plate III 14 is arranged in the deep groove, the jaw plate I12 and the jaw plate II 13 are respectively arranged in the shallow grooves on the two sides and are fixed on the fan-shaped plate 3 through screws, the edges of the jaw plate I12 corresponding to the jaw plate III 14 are oblique edges, the oblique edges are wave-shaped, the edges of the jaw plate II 13 corresponding to the jaw plate III 14 are straight edges, and the two straight edges are in contact with each other.

After the belt head is inserted into the jaw, the axial wedge 17 pushes the waist-shaped jacking block 16 through the inclined bottom surface of the wedge, so that the jaw plate III 14 makes outward radial movement, and the jaw plate III 14 moves upward along the straight edge of the jaw plate II 13 until the two inclined edges of the jaw plate III 14 and the jaw plate I12 compress the belt head.

As an improvement mode, screw holes on the jaw plate I12 and the jaw plate II 13 are identical in position and size.

As shown in figure 4, the coiling direction is anticlockwise, when the coiling direction needs to be changed into clockwise, only the jaw plate I12 and the jaw plate II 13 need to be exchanged and installed, the jaw plate III 14 can be turned around and installed, the jaw reversing function can be realized, the coiling direction is clockwise, redundant spare parts are not needed, and the cost is saved.

Example 3

As shown in fig. 1 and fig. 3, in the shaft type coiler mandrel of the present invention: the cylindrical surface of the axial wedge 17 is provided with a plurality of large waist-shaped grooves 11 with inclined bottom surfaces, the positions of the pyramid main shaft 1 corresponding to the large waist-shaped grooves 11 are provided with vertically through middle waist-shaped grooves, the positions of the jaw sector plates 3 corresponding to the middle waist-shaped grooves are provided with vertically through small waist-shaped grooves, the waist-shaped top blocks 16 are positioned in the three waist-shaped grooves, the lower parts of the waist-shaped top blocks are placed in the large waist-shaped grooves 11, the bottom surfaces of the waist-shaped top blocks are contacted with the inclined bottom surfaces of the large waist-shaped grooves 11, the middle parts of the waist-shaped top blocks are placed in the middle waist-shaped grooves, the upper parts of the waist-shaped top.

The waist-shaped top block 16 is arranged in the waist-shaped groove, and the upper plane of the waist-shaped top block is preferably flush with the bottom surface of the deep groove before the strip steel is coiled by the winding drum, so that when the strip head needs to be pressed, the waist-shaped top block moves upwards, and the jaw plate III 14 can be used for pressing the strip head in the shortest time.

Example 4

As shown in fig. 4, the present invention discloses a pyramid shaft type coiler mandrel, wherein: the inclined plane of the pyramid main shaft 1 is provided with a small key groove, the inclined planes of the sector plate 2 and the jaw sector plate 3 are provided with a large key groove, the small key groove and the large key groove form a T-shaped key groove 5, and the T-shaped key 4 is arranged in the T-shaped key groove 5 and fastened on the pyramid main shaft 1 through screws.

The pyramid spindle 1 pushes the three sector plates 2 and the jaw sector plate 3 to move radially outwards through the inclined plane of the pyramid spindle, and the pyramid spindle 1 hooks the three sector plates 2 and the jaw sector plate 3 to move radially inwards through the T-shaped key 4 on the inclined plane of the pyramid spindle.

Example 5

As shown in fig. 1, fig. 2 and fig. 3, the pyramid shaft coiler mandrel of the present invention further includes a hydraulic system, the hydraulic system includes a rotary hydraulic cylinder 7, a hydraulic rotary joint 7.4, a dry oil rotary joint 7.5 and a pull rod 7.6, which are arranged on the transmission right side of the pyramid spindle 1, the rotary hydraulic cylinder 7 includes a cylinder body 7.7, a piston i 7.1, a piston ii 7.2 and a plurality of lubricating oil pipes 7.3; the right end of the cylinder body 7.7 is connected with a hydraulic rotary joint 7.4 and a dry oil rotary joint 7.5, the piston I7.1 is connected with the pyramid main shaft 1 through threads, the pull rod 7.6 is arranged in the axial through hole 10, the left end of the pull rod is connected with the axial wedge 17, and the right end of the pull rod is matched with an inner hole of the piston II 7.2.

The utility model discloses the theory of operation of the shaft-type coiler mandrel of pyramid does: before coiling the strip steel, the coiling drum is in a reducing state, and the jaw is in an opening state. When steel is required to be rolled, firstly, hydraulic oil enters the left side of a piston I7.1 through a hydraulic rotary joint 7.4 to pull a pyramid spindle 1 to move rightwards along the axial direction, the pyramid spindle 1 pushes three sector plates 2 and a jaw sector plate 3 to move radially outwards through an inclined plane of the pyramid spindle, and a winding drum is gradually expanded to an expansion state; at the moment, the tape head is inserted into a jaw, then hydraulic oil enters the left side of a piston II 7.2 through a hydraulic rotary joint 7.4 to pull a pull rod 7.6 and an axial wedge 17 to move rightwards along the axial direction, the axial wedge 17 pushes a waist-shaped jacking block 16 through the inclined bottom surface of the axial wedge to overcome the pulling force of a spring 15 to apply work to a jaw plate III 14, the jaw plate III 14 makes outward radial movement until the tape head is pressed, and then a winding drum makes rotary movement to wind the strip steel into a coil. During coil stripping, hydraulic oil is reversed, the pull rod 7.6 and the axial wedge 17 are pushed to move leftwards along the axial direction, the waist-shaped top block 16 and the jaw plate III move inwards in the radial direction until the waist-shaped top block returns to the lowest position, simultaneously, the jaws are opened under the action of the pulling force of the spring 15, then the piston I7.1 pushes the pyramid spindle 1 to move leftwards along the axial direction under the pressure of the hydraulic oil, the pyramid spindle 1 hooks the three sector plates 2 and the jaw sector plate 3 through the T-shaped key 4 on the inclined surface of the pyramid spindle 1 to move inwards in the radial direction, so that the reel gradually reaches a diameter reduction state, and then coil stripping is started.

Example 6

As shown in fig. 1, fig. 2 and fig. 3, the hydraulic system of the pyramid shaft type coiler mandrel of the present invention further includes an oil path arranged in the pyramid main shaft 1 and an oil path in the axial wedge 17; the oil path in the pyramid spindle 1 comprises a plurality of axial oil holes 8, a plurality of radial oil holes I9, a radial oil hole II 20, a radial oil hole III 23 and a radial oil hole IV 24, wherein the axial oil holes 8 are communicated along the axial direction of the pyramid spindle 1, the outer end of the radial oil hole I9 is opened on the inclined plane of the pyramid spindle 1, and the inner end of the radial oil hole I9 is communicated with the axial oil holes 8; the outer end of the radial oil hole II 20 is communicated with the axial oil hole 8, and the inner end of the radial oil hole II is opened in the axial through hole 10; the outer end of the radial oil hole III 23 is opened on the surface of a bearing inner ring in the bearing assembly 18, the inner end of the radial oil hole III is communicated with the axial oil hole 8, the outer end of the radial oil hole IV 24 is opened on the outer circular surface of the pyramid main shaft 1, which is contacted with the spline housing 25, and the inner end of the radial oil hole IV is opened on the axial oil hole 8; the oil path in the axial wedge 17 comprises an axial oil groove 21 and a radial oil hole V22; the axial oil groove 21 is arranged on the outer circular surface of the axial wedge 17 and is communicated with the radial oil hole II 20; one end of the radial oil hole V22 is opened on the inclined bottom surface of the kidney groove 11, and the other end is communicated with the axial oil groove 21.

When the winding drum runs, lubricating dry oil is pumped into the winding drum through a dry oil rotary joint 7.5, enters an axial oil hole 8 of the pyramid spindle 1 through a lubricating oil pipe 7.3, and then reaches each sliding surface through each oil hole for lubrication, and a specific lubricating oil way is as follows: the sliding inclined plane of the fan-shaped plate 2, the jaw fan-shaped plate 3 and the pyramid spindle 1 which are contacted with each other is lubricated through a radial oil hole I9, a bearing in a bearing assembly 18 is lubricated through a radial oil hole III 23, the sliding surface of a spline housing and the pyramid spindle 1 which are contacted with each other is lubricated through a radial oil hole IV 24, the sliding surface of an axial through hole 10 and the outer circle of a transverse wedge 17 which are contacted with each other is lubricated through a radial oil hole II 20, and the sliding inclined plane of the waist-shaped groove 11, which is contacted with the waist-shaped top block 16, is lubricated through an axial oil groove 21 and.

The utility model discloses a set up hydraulic system, to the inside automatic lubrication function that has realized of reel, saved artifical filling lubricating oil link, improved efficiency.

Example 7

As shown in fig. 1 and 3, the pyramid shaft type coiler mandrel of the present invention further comprises an extension shaft 19, and the bearing assembly 18 and the extension shaft 19 constitute a head support assembly; an inner hole of the extension shaft 19 is sleeved on the pyramid main shaft 1, the end face of the extension shaft 19 is connected with the end face of the sector plate 2 through a bolt, and the bearing assembly 18 is fixed on the extension shaft 19.

The utility model discloses an increase and extend axle 19, make bearing assembly 18 be connected with extension axle 19, it has fixed a position to extend the axle axial, so no matter the reel does the inflation or when reducing the motion, head supporting component ground is static relatively, that is to say, the bearing assembly can not remove about, under this condition, process into conical surface with bearing assembly 18 outside telescopic outside H, process into the internal cone face with the holding surface of outside support, outside support and support bearing assembly are face contact like this, the atress condition is good, the reel can bear great tension.

The above embodiments are only examples of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides a take shaft-type coiler mandrel of pyramid of mechanical jaw, it includes pyramid main shaft (1), three sector plates (2), a jaw sector plate (3), spline housing (25), bearing assembly (18), the outside of pyramid main shaft (1) is provided with sector plate (2), jaw sector plate (3), pyramid main shaft (1) and sector plate (2), jaw sector plate (3) all contact through a plurality of sections inclined planes, spline housing (25) cover is on the outer disc of pyramid main shaft (1), bearing assembly (18) set up at the breathing side end, characterized by: the mechanical jaw assembly comprises a jaw plate I (12), a jaw plate II (13), a jaw plate III (14), a plurality of springs (15) and a plurality of waist-shaped jacking blocks (16); the axial wedge (17) is arranged in an axial through hole (10) in the center of the pyramid main shaft (1), and the cylindrical surface of the axial wedge is matched with the axial through hole (10); the outer circular surface of the jaw sector plate (3) is provided with a groove (6) in an axial through mode, a mechanical jaw assembly is arranged in the groove (6), a jaw plate I (12) and a jaw plate II (13) are fixed on the jaw sector plate (3), a jaw plate III (14) is arranged between the jaw plate I (12) and the jaw plate II (13), a spring (15) is arranged in a radial blind hole of the jaw sector plate (3), the top surface of the spring is in contact with the lower plane of the jaw plate III (14), a waist-shaped top block (16) is arranged in waist-shaped grooves of an axial wedge (17), a pyramid spindle (1) and the jaw sector plate (3), the bottom surface of the waist-shaped top block is in contact with the inclined bottom surface of the waist-shaped groove of the axial wedge (17), and the top surface of the waist-shaped top block is in contact with the lower plane of the jaw plate III (14); the waist-shaped top block (16) and the spring (15) do not interfere.

2. The pyramid-spindle coiler drum according to claim 1, wherein: the groove (6) is a stepped groove with deep middle and shallow two sides, the jaw plate III (14) is arranged in the deep groove, the jaw plate I (12) and the jaw plate II (13) are respectively arranged in the shallow grooves on the two sides and are fixed on the sector plate (3) through screws, the edges of the jaw plate I (12) corresponding to the jaw plate III (14) are bevel edges, the bevel edges are wave-shaped, the edges of the jaw plate II (13) corresponding to the jaw plate III (14) are straight edges, and the two straight edges are in contact with each other.

3. The pyramid-spindle coiler drum according to claim 2, wherein: the positions of screw holes on the jaw plate I (12) and the jaw plate II (13) are the same, and the screw holes are the same in size.

4. The pyramid-spindle coiler drum according to claim 1, wherein: the cylindrical surface of the axial wedge (17) is provided with a plurality of large kidney-shaped grooves (11) with the bottom surfaces being inclined planes, the positions of the pyramid main shaft (1) corresponding to the large kidney-shaped grooves (11) are provided with vertically through middle kidney-shaped grooves, the positions of the jaw sector plates (3) corresponding to the middle kidney-shaped grooves are provided with vertically through small kidney-shaped grooves, kidney-shaped top blocks (16) are positioned in the three kidney-shaped grooves, the lower parts of the kidney-shaped top blocks are positioned in the large kidney-shaped grooves (11), the bottom surfaces of the jaw sector plates are contacted with the inclined bottom surfaces of the large kidney-shaped grooves (11), the middle parts of the jaw sector plates are positioned in the middle kidney-shaped grooves, the upper parts of the jaw sector plates are positioned in the small kidney.

5. The pyramid-spindle coiler drum according to claim 1, wherein: a small key groove is formed in the inclined surface of the pyramid main shaft (1), a large key groove is formed in the inclined surfaces of the sector plate (2) and the jaw sector plate (3), a T-shaped key groove (5) is formed by the small key groove and the large key groove, and the T-shaped key (4) is arranged in the T-shaped key groove (5) and fastened on the pyramid main shaft (1) through screws.

6. The pyramid-spindle coiler drum according to claim 1, wherein: the pyramid shaft type coiler mandrel further comprises a hydraulic system, the hydraulic system comprises a rotary hydraulic cylinder (7) arranged on the transmission right side of the pyramid main shaft (1), a hydraulic rotary joint (7.4), a dry oil rotary joint (7.5) and a pull rod (7.6), and the rotary hydraulic cylinder (7) comprises a cylinder body (7.7), a piston I (7.1), a piston II (7.2) and a plurality of lubricating oil pipes (7.3); the right end of a cylinder body (7.7) is connected with a hydraulic rotary joint (7.4) and a dry oil rotary joint (7.5), a piston I (7.1) is connected with a pyramid main shaft (1) through threads, a pull rod (7.6) is arranged in an axial through hole (10), the left end of the pull rod is connected with an axial wedge (17), and the right end of the pull rod is matched with an inner hole of a piston II (7.2).

7. The pyramid-spindle coiler drum according to claim 6, wherein: the hydraulic system also comprises an oil way arranged in the pyramid main shaft (1) and an oil way in the axial wedge (17); the oil way in the pyramid main shaft (1) comprises a plurality of axial oil holes (8), a plurality of radial oil holes I (9), a radial oil hole II (20), a radial oil hole III (23) and a radial oil hole IV (24), wherein the axial oil holes (8) are communicated along the axial direction of the pyramid main shaft (1), the outer end of each radial oil hole I (9) is opened on the inclined plane of the pyramid main shaft (1), and the inner end of each radial oil hole I (9) is communicated with the axial oil hole (8); the outer end of the radial oil hole II (20) is communicated with the axial oil hole (8), and the inner end of the radial oil hole II is opened in the axial through hole (10); the outer end of the radial oil hole III (23) is opened on the surface of a bearing inner ring in the bearing assembly (18), the inner end of the radial oil hole III is communicated with the axial oil hole (8), the outer end of the radial oil hole IV (24) is opened on the outer circular surface of the pyramid main shaft (1) contacted with the spline sleeve (25), and the inner end of the radial oil hole IV is opened on the axial oil hole (8); the oil path in the axial wedge (17) comprises an axial oil groove (21) and a radial oil hole V (22); the axial oil groove (21) is arranged on the outer circular surface of the axial wedge (17) and is communicated with the radial oil hole II (20); one end of the radial oil hole V (22) is opened on the inclined bottom surface of the kidney-shaped groove (11), and the other end is communicated with the axial oil groove (21).

8. The pyramid-spindle coiler drum according to claim 1, wherein: the pyramid shaft type coiler mandrel further comprises an extension shaft (19), and the bearing assembly (18) and the extension shaft (19) form a head support assembly; an inner hole of the extension shaft (19) is sleeved on the pyramid spindle (1), the end face of the extension shaft (19) is connected to the end face of the sector plate (2) through a bolt, and the bearing assembly (18) is fixed on the extension shaft (19).

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