Pyramid shaft type cold rolling drum

Abstract

The invention discloses a pyramid shaft type cold rolling drum, which relates to the technical field of coiling equipment, and comprises a hollow shaft, a pyramid shaft assembly, a sector plate assembly, a wedge, a pull rod assembly and an extension shaft assembly. On the basis of the large tension characteristic of the pyramid shaft winding drum, the pyramid shaft is kept fixed in the expansion and contraction process, and the running stability of the winding drum is improved from the structure source; a full-automatic oil supply system is adopted in the winding drum, so that the traditional mode of timed disassembly and maintenance is completely abandoned, the continuous operation time of one-time loading of equipment is greatly prolonged, and the production efficiency is remarkably improved; when the diameter of the winding drum is expanded, the wedge shape and the outer arc of the fan-shaped plate form a whole circle, and any oil filling hole is not needed in the outer circle, so that the quality of the inner ring of the wound strip steel is ensured when the strip steel is wound; when the winding drum reaches the maintenance period and needs to be overhauled, the whole winding drum can be disassembled and replaced only by disassembling a small number of bolts, the maintenance process is greatly simplified, and the downtime of equipment is remarkably shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coiling equipment, and particularly relates to a pyramid shaft type cold rolling drum. BACKGROUND

[0002] The cold rolling coiler is an indispensable key equipment in the cold rolling strip production line, and shoulders the important mission of coiling the cold rolling formed steel strip into a cylindrical shape. This link is directly related to whether the subsequent storage and transportation of the steel strip can be efficiently carried out. The drum, as the core component of the coiler, its performance is better or worse, which plays a decisive role in the overall service life of the coiler and the coiling quality of the steel strip.

[0003] At present, the steel market competition is becoming increasingly fierce, and many steel plants are accelerating the transformation from ordinary steel production to special steel field in order to seek breakthrough. This change puts forward higher requirements for production equipment, especially a drum with high stability, large tension bearing capacity, simple maintenance process and long continuous running time per single machine operation is needed. However, the widely used pyramid shaft type drum is difficult to meet these characteristics comprehensively.

[0004] Based on this, the present application provides a pyramid shaft type cold rolling drum, which can eliminate the disadvantages of the existing device. SUMMARY

[0005] The present application aims to provide a pyramid shaft type cold rolling drum to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A pyramid shaft type cold rolling drum, comprising a hollow shaft, a pyramid shaft assembly, a fan-shaped plate assembly, a wedge, a pull rod assembly and an extension shaft assembly, the pyramid shaft assembly comprises a pyramid shaft, the fan-shaped plate assembly comprises a fan-shaped plate and an arch-shaped plate, the pull rod assembly comprises a dry oil rotary joint, a thin oil rotary joint, an expansion oil cylinder and a pull rod, the extension shaft assembly comprises an extension shaft and a bearing, the expansion oil cylinder is used to pull the axial movement of the pull rod and drive the axial movement of the extension shaft assembly, the extension shaft pulls the axial movement of the fan-shaped plate assembly and the wedge, and the fan-shaped plate, the arch-shaped plate and the wedge are in abutment with the inclined surface of the pyramid shaft.

[0008] On the basis of the above technical scheme, the present application further provides the following optional technical scheme:

[0009] In an optional scheme, the fan-shaped plate assembly further comprises a distributor and a dry oil pipe, the dry oil rotary joint is connected with an external dry oil station, the pull rod and the extension shaft are both provided with dry oil holes, the dry oil holes of the pull rod and the extension shaft are connected with the distributor, the fan-shaped plate and the wedge are both provided with dry oil holes, and the dry oil holes of the fan-shaped plate and the wedge are in communication with the distributor through the dry oil pipe.

[0010] In an alternative: the prismatic shaft is uniformly provided with a slope on the side, the slope of the prismatic shaft is in sliding fit with the slope of the sector plate, the prismatic shaft is uniformly provided with a groove on the side, and the groove is in sliding fit with the slope of the wedge.

[0011] In an alternative: the inner hole of the extension shaft is built up with copper alloy.

[0012] In an alternative: the inner hole of the extension shaft is provided with two symmetrical key grooves, and the prismatic shaft is provided with a guide key on the side.

[0013] In an alternative: the extension shaft is provided with a carbon fiber ring on the end face of the boss.

[0014] In an alternative: the inner hole of the hollow shaft is provided with an inner taper surface and a key groove, the end face is provided with a screw hole, the prismatic shaft is provided with a guide key on the side, the hollow shaft is connected with an external speed reducer, the prismatic shaft penetrates into the hollow shaft, and is connected with the hollow shaft through a bolt.

[0015] In an alternative: the end face of the pull rod is provided with an oil cup.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] On the basis of the large tension characteristics of the prismatic shaft winding drum, the prismatic shaft remains fixed during the expansion and contraction process, thereby improving the stability of the winding drum from the structural root, effectively avoiding the shaking or precision deviation caused by the movement of components in the traditional design; the full-automatic oil supply system is used in the winding drum, the traditional mode of regular disassembly and maintenance is completely abandoned, the continuous operation time of the equipment is greatly prolonged after one-time machine loading, and the production efficiency is significantly improved; when the winding drum is expanded, the wedge and the outer circular arc of the sector plate form a complete circle, and no oil hole is needed on the outer circle, thereby ensuring the quality of the inner circle of the coiled strip steel during coiling; when the winding drum reaches the maintenance period and needs to be overhauled, only a small number of bolts need to be disassembled to complete the overall disassembly and replacement, thereby greatly simplifying the maintenance process and significantly shortening the equipment downtime. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the prismatic shaft type cold rolling winding drum.

[0019] Figure 2 is a sectional view of the prismatic shaft type cold rolling winding drum. Figure One .

[0020] Figure 3 is a sectional view of the prismatic shaft type cold rolling winding drum. Figure Two .

[0021] Figure 4is a schematic view of the hollow shaft assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0022] Figure 5 is a sectional view of the hollow shaft assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0023] Figure 6 is a schematic view of the pyramid shaft assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0024] Figure 7 is a schematic view of the sector plate assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0025] Figure 8 is a sectional view of the sector plate of the pyramid shaft type cold rolling mandrel of the present application. Figure One .

[0026] Figure 9 is a sectional view of the sector plate of the pyramid shaft type cold rolling mandrel of the present application. Figure Two .

[0027] Figure 10 is a schematic view of the wedge of the pyramid shaft type cold rolling mandrel of the present application.

[0028] Figure 11 is a sectional view of the wedge of the pyramid shaft type cold rolling mandrel of the present application.

[0029] Figure 12 is a schematic view of the pull rod assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0030] Figure 13 is a sectional view of the pull rod assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0031] Figure 14 is a sectional view of the extension shaft assembly of the pyramid shaft type cold rolling mandrel of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS100, hollow shaft assembly; 200, pyramid shaft assembly; 201, pyramid shaft; 202, guide key one; 203, guide key two; 204, bolt; 300, sector plate assembly; 301, sector plate; 302, arc plate; 303, distributor; 304, oil pipe; 400, wedge; 500, pull rod assembly; 501, dry oil rotary joint; 502, thin oil rotary joint; 503, expansion oil cylinder; 504, pull rod; 600, extension shaft assembly; 601, extension shaft; 602, carbon fiber ring; 603, pipe joint. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples.

[0034] In one embodiment, as Figures 1-14As shown, a kind of pyramid shaft type cold rolling reel includes hollow shaft 100, pyramid shaft assembly 200, sector plate assembly 300, wedge 400, pull rod assembly 500 and extension shaft assembly 600, pyramid shaft assembly 200 includes pyramid shaft 201, sector plate assembly 300 includes sector plate 301, bow plate 302, pull rod assembly 500 includes dry oil rotary joint 501, thin oil rotary joint 502, expansion oil cylinder 503, pull rod 504, extension shaft assembly 600 includes extension shaft 601, bearing 602, expansion oil cylinder 503 is used to pull the axial movement of pull rod 504, and drives extension shaft assembly 600 axial movement, extension shaft 601 pulls sector plate assembly 300 and wedge 400 axial movement, sector plate 301, bow plate 302, wedge 400 are all with pyramid shaft 201 inclined surface abutment.Sector plate 301, bow plate 302, wedge 400 are all with pyramid shaft 201 inclined surface abutment, so that axial force is converted into longitudinal force, reach sector plate 301 and wedge 400 move up and down, reach the purpose of expansion.

[0035] In one embodiment, sector plate assembly 300 further includes distributor 303 and dry oil pipe 304, dry oil rotary joint 501 is connected with external dry oil station, and dry oil hole is formed in pull rod 504 and extension shaft 601, the dry oil hole of pull rod 504 and extension shaft 601 is connected with distributor 303, and dry oil hole is formed in sector plate 301 and wedge 400, and the dry oil hole of sector plate 301 and wedge 400 is communicated with distributor 303 through dry oil pipe 304.

[0036] Through the connection of external dry oil station and dry oil rotary joint (501), the internal dry oil hole of pull rod (504) and the internal dry oil hole of extension shaft (601) are used to supply oil to distributor (303), and then distributor (303) is used to supply oil to sector plate (301) and wedge (400) through dry oil pipe (304), so that the purpose of automatic oil supply of the reel is achieved.

[0037] In one embodiment, the periphery of pyramid shaft 201 is uniformly provided with inclined surface, and the inclined surface of pyramid shaft 201 is in sliding fit with the inclined surface of sector plate 301, and the periphery of pyramid shaft 201 is uniformly provided with groove, and the groove is in sliding fit with the inclined surface of wedge 400.

[0038] Pyramid shaft 201 is uniformly arranged with dovetail and inclined surface at expansion position, and is uniformly arranged with groove and inclined surface at forty-five degree position.The dovetail and inclined surface arranged at expansion position are used for installing sector plate 301, and the groove and inclined surface arranged at forty-five degree position are used for installing wedge 400.

[0039] When the reel is working in a circle, the circular arcs of four sector plates 301 and four wedges 400 form a complete whole circle, so that strip steel is prevented from being clamped and inner circle indentation is prevented.

[0040] In one embodiment, the inner hole of the extension shaft 601 is hardfaced with copper alloy, and the both sides of the dovetail of the sector plate 301 are hardfaced with copper alloy to improve the wear resistance of the device.

[0041] In one embodiment, two symmetrical key grooves are arranged in the inner hole of the extension shaft 601, and a guide key 202 is arranged on the circumferential side of the pyramid shaft 201.

[0042] The pyramid shaft 201 is completely static during the expansion and contraction of the winding drum, which can ensure the balance and stability of the entire winding drum.

[0043] Four oil paths are arranged in the inner hole of the extension shaft 601, and dry oil is output to the distributor 303 of the sector plate assembly 300 through the four oil supplies of the pull rod and the pipe joint 603.

[0044] In one embodiment, a carbon fiber ring is installed on the end face of the extension shaft 601. When the wedge (400), the sector plate assembly 300 and the boss slide, the wear can be effectively reduced, and the use efficiency can be improved.

[0045] In one embodiment, an inner taper surface and a key groove are arranged in the inner hole of the hollow shaft 100, a screw hole is arranged on the end face, a guide key 203 is arranged on the circumferential side of the pyramid shaft 201, the hollow shaft 100 is connected with an external speed reducer, the pyramid shaft 201 penetrates into the hollow shaft 100, and is connected with the hollow shaft 100 through a bolt 204.

[0046] In one embodiment, an oil cup is arranged on the end face of the pull rod 504. The dry oil rotary joint 501 of the pull rod assembly 500 can be connected with an external dry oil station, and then the oil supply hole is supplied with oil through the internal oil hole and the deep oil hole in the pull rod 504. The oil cup is arranged and installed on the end face of the deep hole of the pull rod 504, which can manually supply oil when the external dry oil station or the dry oil rotary joint 501 fails, so as to ensure the normal use of the winding drum.

[0047] The dry oil output by the pipe joint 603 is first input into the distributor 303, and then output to the oil holes of the sector plate 301 and the wedge 400, so as to achieve the purpose of supplying oil to the sector plate 301 and the wedge 400. The sector plate 301 is arranged with an axial through hole, an inclined surface and a dovetail oil supply hole. The dry oil enters the inclined surface and the dovetail oil supply hole in sequence through the axial through hole, so as to supply oil to the inclined surface and the dovetail position.

[0048] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A pyramidal shaft type cold-rolled coil, characterized in that, The assembly includes a hollow shaft (100), a pyramidal shaft assembly (200), a sector plate assembly (300), a wedge (400), a tie rod assembly (500), and an extension shaft assembly (600). The pyramidal shaft assembly (200) includes a pyramidal shaft (201). The sector plate assembly (300) includes a sector plate (301) and an arc-shaped plate (302). The tie rod assembly (500) includes a dry oil rotary joint (501), a thin oil rotary joint (502), and an expansion / contraction cylinder (503). The extension shaft assembly (600) includes an extension shaft (601) and a bearing (602). The expansion cylinder (503) is used to pull the pull rod (504) to move axially and drive the extension shaft assembly (600) to move axially. The extension shaft (601) pulls the fan-shaped plate assembly (300) and the wedge (400) to move axially. The fan-shaped plate (301), the bow-shaped plate (302), and the wedge (400) all abut against the inclined surface of the pyramidal shaft (201).

2. The pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, The sector plate assembly (300) also includes a distributor (303) and a dry oil pipe (304). The dry oil rotary joint (501) is connected to an external dry oil station. The pull rod (504) and the extension shaft (601) are both provided with dry oil holes. The dry oil holes of the pull rod (504) and the extension shaft (601) are connected to the distributor (303). The sector plate (301) and the wedge (400) are both provided with dry oil holes. The dry oil holes of the sector plate (301) and the wedge (400) are connected to the distributor (303) through the dry oil pipe (304).

3. The pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, The pyramid shaft (201) has uniformly arranged inclined surfaces around its periphery. The inclined surfaces of the pyramid shaft (201) slide in cooperation with the inclined surfaces of the sector plate (301). The pyramid shaft (201) has uniformly arranged grooves around its periphery. The grooves slide in cooperation with the inclined surfaces of the wedge (400).

4. The pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, The inner hole of the extension shaft (601) is welded with copper alloy.

5. A pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, The inner hole of the extension shaft (601) has two symmetrical keyways, and the periphery of the pyramidal shaft (201) is provided with a guide key (202).

6. A pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, A carbon fiber ring is installed on the boss end face of the extension shaft (601).

7. A pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, The hollow shaft (100) has an inner conical surface and a keyway in its inner hole, and a screw hole on its end face. The pyramidal shaft (201) has a guide key (203) on its periphery. The hollow shaft (100) is connected to an external reducer. The pyramidal shaft (201) extends through the hollow shaft (100) and is connected to the hollow shaft (100) by bolts (204).

8. A pyramidal shaft type cold-rolled coil according to claim 1, characterized in that, An oil cup is provided on the end face of the pull rod (504).

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