Coiling integrated shaft of coiling machine
By designing the integrated winding shaft, combined with the cooperation of the axial oblique wedge and radial oblique wedge, the problems of wear and deformation of the connection surface between the reel shaft and the reducer spindle are solved, and high-precision rotation and simplified assembly of the reel shaft are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202421431734.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the finishing and bending equipment process of metal strips, the connection surface between the winding shaft and the gearbox spindle is worn and deformed, causing the winding shaft to jump greatly, affecting production accuracy and assembly difficulty.
The winding integrated shaft design is adopted, and the winding shaft and the gearbox spindle are designed as an integrated structure. Combined with the cooperation of the axial oblique wedge and the radial oblique wedge, the winding shaft is driven to move the core rod to achieve the expansion and shrinkage of the winding shaft to avoid wear on the mating surface.
It improves the rotation accuracy of the winding shaft, reduces assembly difficulty, avoids wear and deformation problems in traditional combined shaft structures, and improves production stability.
Smart Images
Figure CN223056409U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of finishing processing of metal strip materials, and particularly relates to a coiling integrated shaft of a coiler in a tension leveling equipment. Background Art
[0002] When a metal strip is processed in the finishing tension leveling equipment process, the strip after trimming and cleaning needs to be coiled by the coiling shaft of the coiler, and the coiling shaft is a hydraulic expansion and contraction type reel. The original coiling shaft is connected with the main flange of the reducer box through a large flange at one end. Long-term use causes wear and deformation of the mating surface of the large flanges of the two shafts, resulting in large runout of the coiling shaft and affecting normal production. Content of the Utility Model
[0003] The purpose of the utility model is to provide a coiling integrated shaft of a coiler. The coiling shaft and the main shaft of the reducer box adopt an integrated design. After long-term use, the radial runout of the coiling shaft is avoided, and the rotation accuracy of the coiling shaft is improved.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a coiling integrated shaft of a coiler, including a hollow main shaft, the hollow main shaft is axially divided into a reducer box shaft section and a coiling shaft section, the reducer box shaft section and the coiling shaft section are of an integrated structure, the reducer box shaft section is installed in the reducer box and serves as the main shaft of the reducer box, and the coiling shaft section extends out of the reducer box for coiling the strip;
[0005] A core rod, located in the central through hole of the hollow main shaft, one end of the core rod extends out of the hollow main shaft and is connected with an axial driving mechanism;
[0006] An axial wedge, slidably arranged on the side surface of the coiling shaft section and connected with the core rod, and the core rod drives the axial wedge to axially move;
[0007] A radial wedge, arranged on the outside of the axial wedge and cooperating with the inclined surface of the axial wedge, and the axial wedge pushes the radial wedge to radially move outwards;
[0008] Steel sector blocks, arranged between adjacent radial wedges and floatingly connected with the hollow main shaft, both sides of the inner diameter surface of the steel sector blocks are respectively in contact with the outer side surfaces of the radial wedges, so that the radial movement of the radial wedges can push the steel sector blocks to radially float, and the reset of the steel sector blocks can push the radial wedges to radially move inwards;
[0009] An aluminum expanding block, fixed on the steel sector block, and one side of the aluminum expanding block presses on the radial wedge.
[0010] The end of the coiling shaft section is a reel shaft head and is installed in a bearing sleeve.
[0011] The coiling shaft section is provided with a plurality of axial chutes, and the axial wedge is slidably arranged in the axial chutes.
[0012] The portion of the winding shaft section for mounting the axial wedge is in the form of a regular octagonal prism, and four axial sliding grooves are arranged at intervals on the eight side surfaces of the winding shaft section.
[0013] A cross fork is provided at the end of the core rod, and the cross fork has forks extending in four directions. The side of the winding shaft section is provided with a notch groove for the fork to extend and move axially. The forks in four directions of the cross fork are respectively connected to an axial wedge to drive the axial wedge to move axially.
[0014] The steel sector block is floatingly connected to the shaft section of the winding shaft through a disc spring bolt, and the disc spring bolt is a bolt sleeved with a disc spring.
[0015] The hole on the steel sector block for installing the disc spring bolt is a countersunk hole, and a pressure cover is arranged on the countersunk hole, and the pressure cover is fixedly connected to the steel sector block.
[0016] A square key is installed on the shaft section of the winding shaft, and a square groove which is convex-concavely matched with the square key is arranged on the inner diameter surface of the steel sector block.
[0017] A limiting ring is arranged on the shaft section of the winding shaft, and both ends of the radial inclined wedge and the steel sector block are clamped on the corresponding limiting ring.
[0018] The steel sector block and the radial wedges on both sides are matched with inclined surfaces.
[0019] The beneficial effect of the utility model is that the utility model adopts an integrated winding shaft to replace the combined shaft of the traditional winding shaft and the reducer main shaft. There is no mating surface between the reducer shaft section and the winding shaft section of the winding shaft. Therefore, during the operation of the winding shaft, the problem of large winding shaft jump caused by wear and deformation of the mating surface in the traditional combined shaft structure will not occur, thereby improving the rotation accuracy of the winding shaft.
[0020] In addition, when assembling the traditional combined shaft structure, the winding shaft needs to be assembled twice, and the coaxiality of the winding shaft and the reducer main shaft must be ensured, which makes assembly difficult. After adopting the design of the integrated shaft of the utility model, there is no need for secondary assembly of the winding shaft, which improves the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1Structural schematic diagram of the present utility model;
[0023] Figure 2 is Figure 1 axial sectional view of the hollow main shaft from a perspective;
[0024] Figure 3 Structural schematic diagram of the coiling part of the coiling integrated shaft in the present utility model;
[0025] Figure 4 Transverse sectional view of the coiling part of the coiling integrated shaft in the present utility model;
[0026] Markings in the figure: 1, expansion and contraction cylinder; 2, snap ring coupling; 3, reduction gearbox; 4, hollow main shaft; 401, reduction gearbox shaft section; 402, coiling shaft section; 403, notch groove; 404, coiling shaft head; 5, core rod; 6, axial wedge; 7, radial wedge; 8, cross fork head; 9, bearing sleeve; 10, steel sector block; 11, square key; 12, disc spring bolt; 13, gland; 14, aluminum expanding block; 15, limit ring. Specific embodiments
[0027] The present utility model will be further described in detail below in conjunction with the drawings and embodiments, but it shall not be used as a basis for any limitation to the utility model.
[0028] As Figures 1-3 shown, a coiling integrated shaft of a coiling machine includes a hollow main shaft 4, a core rod 5, an axial wedge 6, a radial wedge 7, a steel sector block 10, and an aluminum expanding block 12.
[0029] The hollow main shaft 4 is axially divided into a reduction gearbox shaft section 401 and a coiling shaft section 402. The reduction gearbox shaft section 401 and the coiling shaft section 402 are integrally formed and machined as a whole. The reduction gearbox shaft section 401 is installed in the reduction gearbox 3 and serves as the main shaft of the reduction gearbox. The coiling shaft section 402 extends out of the reduction gearbox 3 for coiling the strip, and the end of the coiling shaft section 402 serves as the coiling shaft head 404, and the coiling shaft head 404 is supported in the bearing sleeve 9. A core rod 5 that can move axially is provided in the central hole of the hollow main shaft 4. One end of the core rod 5 extends out from the end face of the reduction gearbox shaft section 401 and is connected to the piston rod of the expansion and contraction cylinder 1 through the snap ring coupling 2. The other end of the core rod 5 is connected to the cross fork head 8. The cross fork head 8 has fork heads extending in four directions, so the four fork heads are arranged in a cross. A notch groove 403 for the four fork heads of the cross fork head 8 to expose and slide axially is provided on the side of the coiling shaft section 402.
[0030] On the circumference of the winding shaft segment 402, there are axially extending axial sliding grooves, and axial wedges 6 are arranged in the axial sliding grooves. The inner diameter surface of the end of the axial wedge 6 is provided with grooves, and the fork heads of the cross fork heads 8 are stuck in the grooves, so that the axial movement of the core rod 5 can drive the axial wedge 6 to slide along the axial sliding groove. Outside the axial wedge 6, there is also a radial wedge 7. The radial wedge 7 and the axial wedge 6 are in contact through inclined surfaces, so that the axial movement of the axial wedge 6 can push the radial wedge 7 to move radially. In this embodiment, four axial sliding grooves are evenly distributed on the winding shaft segment 402, so four axial wedges 6 and four radial wedges 7 are provided.
[0031] As Figure 3 , 4 shown, between adjacent radial wedges 7, there are also steel sector blocks 10 that can move radially. The steel sector blocks 10 are floatingly connected to the winding shaft segment 402 of the hollow main shaft 4 through disc spring bolts 12. The disc spring bolts 12 are bolts sleeved with disc springs. On both sides of the steel sector block 10, there are inclined surfaces that are in inclined contact with the radial wedge 7, so that the radial wedge 7 can move radially synchronously with the steel sector block 10 to achieve diameter expansion and contraction. On the outer surface of each steel sector block 10, an aluminum diameter expansion block 14 is fixedly arranged. The aluminum diameter expansion block 14 moves radially with the movement of the steel sector block 10 to expand and contract the outer diameter of the winding shaft. The size of the aluminum diameter expansion block 14 in the circumferential direction is larger than the size of the steel sector block 10, so that the aluminum diameter expansion block 14 can at least cover one side of the radial wedge 7. On the hollow main shaft 4, there are also two limit rings 15. The limit rings 15 are fixed on the hollow main shaft 4 by bolts. The two ends of the radial wedge 7 and the steel sector block 10 abut against the two limit rings 15 to prevent the radial wedge 7 and the steel sector block 10 from moving axially.
[0032] Furthermore, on the winding shaft segment 402, there are also a plurality of square keys 11. The square keys 11 are fixed in the grooves of the winding shaft segment 402 with bolts. The inner diameter surface of the steel sector block 10 is provided with square grooves, and the square grooves and the square keys 11 are in convex-concave fit. On the one hand, it can prevent the axial movement of the steel sector block 10, and on the other hand, it can provide guidance for the radial movement of the steel sector block 10.
[0033] Furthermore, the holes on the steel sector block 10 for installing the disc spring bolts 12 are counterbores, and gland covers 13 are fixedly arranged on the counterbores. The gland covers 13 are fixedly connected to the steel sector blocks 10 to prevent the internal disc spring bolts 12 from breaking and flying out to hurt people. The outer surface of the gland cover 13 fits the outer circular surface of the steel sector block 10. After the gland cover 13 is installed, it forms a flat arc surface with the outer circular surface of the steel sector block 10.
[0034] As Figure 4As shown, the cross-section of the part of the coiling shaft segment 402 for installing the axial wedge 6 is a regular octagon. Therefore, this part of the coiling shaft segment 402 is an octagonal prism. The axial sliding grooves are alternately distributed on four side surfaces of the coiling shaft segment 402 to install four axial wedges 6, and the remaining four side surfaces are connected to the steel sector blocks 10.
[0035] The working process of the coiling integrated shaft of the present utility model is as follows: The piston rod of the expansion and contraction cylinder 1 extends and pushes the core rod 5 ( Figure 1 in the left-right direction shown in the figure) to the right. The core rod 5 drives the four axial wedges 6 to move to the right through the cross fork 8. Since the axial wedge 6 and the radial wedge 7 are in surface contact, the axial movement of the axial wedge 6 can push the radial wedge 7 to move radially through the inclined surface. Then, the steel sector blocks 10 connected to the radial wedge 7 move radially synchronously, and drive the connected aluminum expanding blocks 14 to move radially together with the steel sector blocks 10, so that the coiling shaft segment 402 contracts in diameter. At this time, the relative positions of the axial wedge 6 and the radial wedge 7 are as shown in the Figure 1 schematic part below the core rod 5.
[0036] Similarly, when the expansion and contraction cylinder 1 drives the core rod 5 to move to the left, the radial movement of the aluminum expanding blocks 14 causes the coiling shaft segment 402 to expand in diameter. At this time, the relative positions of the axial wedge 6 and the radial wedge 7 are as shown in the Figure 1 schematic part above the core rod 5.
[0037] The above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Those of ordinary skill in the art should understand that the specific implementation manners of the present utility model can be modified or equivalently replaced by referring to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present utility model are within the protection scope of the claims pending for approval.
Claims
1. A coiling integrated shaft of a coiler, characterized in that: It includes a hollow main shaft, which is axially divided into a speed reducer shaft section and a coiling shaft section. The speed reducer shaft section and the coiling shaft section are of an integral structure. The speed reducer shaft section is installed in the speed reducer and serves as the main shaft of the speed reducer. The coiling shaft section extends out of the speed reducer and is used for coiling the strip. A core rod is located in the central through hole of the hollow main shaft. One end of the core rod extends out of the hollow main shaft and is connected to the axial driving mechanism. An axial wedge is slidably arranged on the side surface of the coiling shaft section and is connected to the core rod. The core rod drives the axial wedge to move axially. A radial wedge is arranged outside the axial wedge and is in inclined surface cooperation with the axial wedge. The axial wedge pushes the radial wedge to move radially outward. Steel sector blocks are arranged between adjacent radial wedges and are floatingly connected to the hollow main shaft. The two sides of the inner diameter surface of the steel sector block are respectively in fitting contact with the outer side surfaces of the radial wedges, so that the radial movement of the radial wedge can push the steel sector block to float radially, and the reset of the steel sector block can push the radial wedge to move radially inward. An aluminum expanding diameter block is fixed on the steel sector block, and one side of the aluminum expanding diameter block presses on the radial wedge.
2. The coiling integrated shaft of a coiler according to claim 1, characterized in that: The end of the coiling shaft section is a reel shaft head and is installed in the bearing sleeve.
3. The coiling integrated shaft of a coiler according to claim 1, characterized in that: The coiling shaft section is provided with a plurality of axial chutes, and the axial wedge is slidably arranged in the axial chutes.
4. The coiling integrated shaft of a coiler according to claim 3, characterized in that: The part of the coiling shaft section for installing the axial wedge is in the shape of a regular octagonal prism, and four of the axial chutes are arranged at intervals on the eight side surfaces of the coiling shaft section.
5. The coiling integrated shaft of a coiler according to claim 4, characterized in that: The end of the core rod is provided with a cross fork head, and the cross fork head has fork heads extending in four directions. A notch groove for the fork heads to extend out and move axially is arranged on the side surface of the coiling shaft section. The fork heads in four directions on the cross fork head are respectively connected to an axial wedge to drive the axial wedge to move axially.
6. The coiling integrated shaft of a coiler according to claim 1, characterized in that: The steel sector block is floatingly connected to the coiling shaft section through a disc spring bolt, and the disc spring bolt is a bolt sleeved with a disc spring.
7. The coiling integrated shaft of a coiler according to claim 6, characterized in that: The hole on the steel sector block for installing the disc spring bolt is a counterbore, and a gland is arranged on the counterbore. The gland is fixedly connected to the steel sector block.
8. The coiling integrated shaft of a coiler according to claim 6, characterized in that: A square key is installed on the coiling shaft section, and a square groove in convex-concave cooperation with the square key is arranged on the inner diameter surface of the steel sector block.
9. The coiling integrated shaft of a coiler according to claim 1, characterized in that: A limiting ring is arranged on the coiling shaft section, and both ends of the radial wedge and the steel sector block are stuck on the corresponding limiting ring.
10. The coiling integrated shaft of a coiler according to claim 1, characterized in that: The steel sector block is in inclined surface cooperation with the radial wedges on both sides.