Collapsible winding drum convenient to maintain and winding device

Abstract

The utility model relates to a collapsible winding drum and a winding device provided with the collapsible winding drum, the collapsible winding drum comprises a winding drum main shaft, a plurality of sector plates, a pyramid sleeve sleeved on the winding drum main shaft and a collapsible driving structure used for driving the pyramid sleeve to move along the winding drum main shaft, and the pyramid sleeve is in transmission fit with each sector plate. A positioning plate is detachably installed at the cantilever end of the winding drum main shaft, the plate face of the positioning plate is perpendicular to the axis of the winding drum main shaft, a plurality of positioning blocks are arranged on the periphery of the positioning plate in a protruding mode, positioning holes are formed in the sector plates in a matched mode, and the positioning blocks and the sector plates are the same in number and are arranged in a one-to-one correspondence mode. And each positioning block is inserted into the corresponding positioning hole and is in guide fit with the positioning hole. According to the utility model, the positioning plate is detachably fixed on the winding drum main shaft, and when the connection between the positioning plate and the winding drum main shaft is released, the positioning plate and each fan-shaped plate can be taken down from the winding drum main shaft, so that the fan-shaped plates and the winding drum are convenient to disassemble, assemble and maintain, and the maintenance efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and particularly relates to a telescopic drum which is convenient for maintenance and a coiling device configured with the telescopic drum. Background Art

[0002] The telescopic drum is one of the commonly used equipment in the metallurgical industry and can be used in equipment such as coiling machines. The telescopic drum generally includes multiple sector plates, and the diameter expansion and contraction of the drum are realized through the synchronous action of the multiple sector plates, and it can be applicable to steel coils with different inner diameters. The existing telescopic drums are inconvenient for maintenance. Since the sector plates are vulnerable parts and the maintenance frequency is relatively high, when only the sector plates need to be maintained, the entire telescopic drum usually needs to be removed, and each sector plate generally needs to be disassembled and assembled separately, resulting in low maintenance efficiency. Summary of the Utility Model

[0003] The utility model relates to a telescopic drum which is convenient for maintenance and a coiling device configured with the telescopic drum, and at least can solve some defects of the prior art.

[0004] The utility model relates to a telescopic drum which is convenient for maintenance, including a drum main shaft, multiple sector plates, a pyramid sleeve sleeved on the drum main shaft, and a telescopic driving structure for driving the pyramid sleeve to move along the drum main shaft. The pyramid sleeve is in transmission cooperation with each sector plate. One end of the drum main shaft close to the sector plate is a cantilever end, and a positioning plate is detachably installed at the cantilever end. The plate surface of the positioning plate is perpendicular to the axis of the drum main shaft. A plurality of positioning blocks are convexly provided on the periphery of the positioning plate, and positioning holes are correspondingly provided on the sector plates. The number of the positioning blocks is the same as that of the sector plates and they are correspondingly arranged one by one. Each positioning block is inserted into the corresponding positioning hole and they are in guiding cooperation.

[0005] As one of the embodiments, the telescopic driving structure includes a pull rod and a telescopic power unit. The drum main shaft is a hollow main shaft. The pull rod is movably arranged in the shaft cavity of the hollow main shaft and one end thereof is connected with the telescopic power unit. The pyramid sleeve is fixedly connected with the pull rod.

[0006] As one of the embodiments, the pyramid sleeve and the pull rod are connected by a flat pin. An activity window is opened on the hollow main shaft. The flat pin passes through the activity window and is respectively connected with the pyramid sleeve and the pull rod. Among them, the length of the activity window in the axial direction of the hollow main shaft should not be less than the activity stroke of the pull rod.

[0007] As one of the embodiments, the telescopic power unit adopts a hydraulic cylinder or a pneumatic cylinder, and the hollow main shaft is flange-connected with the cylinder body of the telescopic power unit.

[0008] As one of the implementation manners, the output shaft of the expansion and contraction power unit is connected to the pull rod through a coupling.

[0009] As one of the implementation manners, the pyramid sleeve has a plurality of driving inclined plane groups, the number of the driving inclined plane groups is the same as that of the sector plates and they are in one-to-one correspondence and cooperation. Each driving inclined plane group includes a plurality of driving inclined planes sequentially distributed along the axial direction of the pyramid sleeve, and a plurality of driving receiving inclined planes which are in wedge fit with the respective driving inclined planes are arranged on the sector plate.

[0010] As one of the implementation manners, a limiting structure for restricting the relative rotation between the pyramid sleeve and the drum main shaft is arranged on the drum main shaft.

[0011] As one of the implementation manners, the positioning plate is mounted on the drum main shaft through fastening screws.

[0012] The present utility model further provides a winding device, which includes a winding table, and the above-mentioned expansion and contraction drum is mounted on the winding table, and the axis of the drum main shaft is perpendicular to the table top of the winding table.

[0013] As one of the implementation manners, the expansion and contraction drum is rotatably mounted on the winding table, and a rotation driving mechanism for driving the drum to rotate is arranged on the winding table.

[0014] The present utility model has at least the following beneficial effects:

[0015] In the present utility model, the positioning plate is detachably fixed on the drum main shaft. When the connection between the positioning plate and the drum main shaft is released, the positioning plate and the respective sector plates can be removed from the drum main shaft, so as to facilitate the disassembly, assembly and maintenance of the sector plates and the drum, and can greatly improve the maintenance efficiency. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the drum provided by the embodiment of the present utility model;

[0018] Figure 2 It is a schematic diagram of the winding device provided by the embodiment of the present utility model;

[0019] Figure 3 And Figure 4 They are respectively schematic diagrams of the winding table in the winding position and the turning-over position;

[0020] Figure 5 Schematic diagram of hoisting the upper coil provided by the embodiment of the present utility model. Specific embodiments

[0021] The technical solutions in the embodiments of the present utility model will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] As Figure 1 , the embodiment of the present utility model provides a telescopic drum 2 that is convenient for maintenance, including a drum main shaft 203, multiple sector plates 201, a pyramid sleeve 202 sleeved on the drum main shaft 203, and a telescopic driving structure for driving the pyramid sleeve 202 to move along the drum main shaft 203. The pyramid sleeve 202 is in transmission cooperation with each sector plate 201. One end of the drum main shaft 203 close to the sector plate 201 is a cantilever end. A positioning plate 208 is detachably installed at the cantilever end. The plate surface of the positioning plate 208 is perpendicular to the axis of the drum main shaft 203. A plurality of positioning blocks protrude from the periphery of the positioning plate 208. Matching positioning holes are provided on the sector plate 201. The number of positioning blocks is the same as that of the sector plates 201 and they are arranged in one-to-one correspondence. Each positioning block is inserted into the corresponding positioning hole and the two are in guiding cooperation.

[0024] In one of the embodiments, as Figure 1 , the telescopic driving structure includes a pull rod 204 and a telescopic power unit 205. The drum main shaft 203 is a hollow main shaft. The pull rod 204 is movably arranged in the shaft cavity of the hollow main shaft and one end is connected to the telescopic power unit 205. The pyramid sleeve 202 is fixedly connected to the pull rod 204.

[0025] Preferably, a limiting structure is provided on the drum main shaft 203 to limit the relative rotation between the pyramid sleeve 202 and the drum main shaft 203, including but not limited to adopting the following structure: at least one sliding key is provided between the pyramid sleeve 202 and the drum main shaft 203.

[0026] Optionally, the pyramid sleeve 202 and the pull rod 204 are connected by a flat pin 206. An activity window can be correspondingly opened on the drum main shaft 203. The flat pin 206 passes through the activity window and is respectively connected to the pyramid sleeve 202 and the pull rod 204. Among them, the length of the activity window in the axial direction of the drum main shaft 203 should not be less than the activity stroke of the pull rod 204.

[0027] The expansion and contraction power unit 205 may be a linear drive device such as a hydraulic cylinder or a pneumatic cylinder. Figure 1 The reel main shaft 203 and the expansion and contraction power unit 205 may be connected in a detachable manner by means of a flange connection structure 210 or the like; the output shaft of the expansion and contraction power unit 205 may be connected to the pull rod 204 via a coupling 211 .

[0028] For the cooperation between the pyramid sleeve 202 and the sector plate 201, preferably, as Figure 1 The pyramid sleeve 202 has a plurality of driving inclined surface groups, the number of the driving inclined surface groups is the same as that of the sector plates 201 and they are matched one by one, each driving inclined surface group includes a plurality of driving inclined surfaces 207 distributed in sequence along the axial direction of the pyramid sleeve 202, and the sector plates 201 are provided with a plurality of bearing driving inclined surfaces matched with the wedge surfaces of the driving inclined surfaces 207. When the pyramid sleeve 202 moves along its own axial direction, based on the wedge surface matching relationship between the driving inclined surfaces 207 and the bearing driving inclined surfaces, the sector plates 201 can be made to move synchronously in the radial direction, so as to achieve the purpose of the reel expansion and contraction.

[0029] Optionally, the number of the sector plates 201 is four, and the pyramid sleeve 202 has four driving inclined surface groups accordingly.

[0030] The protruding length of the positioning block should ensure that it can still cooperate with the positioning hole guide when the reel is in the state of expansion. Based on the above design, the fan-shaped plate 201 can be limited to move only in the radial direction to ensure the reliability of the expansion and contraction of the reel. In particular, the positioning plate 208 can be detachably fixed on the reel main shaft 203. When the connection between the positioning plate 208 and the reel main shaft 203 is released, the positioning plate 208 and each fan-shaped plate 201 can be removed from the reel main shaft 203, thereby facilitating the disassembly and maintenance of the fan-shaped plate 201 and the reel. The positioning plate 208 is preferably installed on the reel main shaft 203 by fastening screws 209 and the like; since the positioning plate 208 is fixed on the reel main shaft 203, when the reel expands or contracts, the fastening screws 209 will not bear axial tension, so that reliable structural stability of the positioning plate 208 and the guiding effect on the fan-shaped plate 201 can be obtained.

[0031] Embodiment 2

[0032] like Figures 2 - 4 The embodiment of the utility model provides a roll receiving device 1, including a roll receiving platform 101, on which the expansion and contraction reel 2 provided in the above-mentioned embodiment 1 is installed, and the axis of the reel main shaft 203 is perpendicular to the table surface of the roll receiving platform 101.

[0033] like Figure 5 The steel coil 3 can be lifted by a crane mounted electromagnetic suction cup 4. By the electromagnetic suction cup 4 gaining and losing power, the steel coil 3 can be easily lifted and released, and the steel coil 3 can be rolled onto the above-mentioned coil receiving platform 101.

[0034] In one embodiment, as Figure 3 and Figure 4 , the above-mentioned coiling table 101 can be turned over, and it is configured with a turning drive mechanism 109. The coiling table 101 is connected to the turning drive mechanism 109 so as to have a coiling position and an uncoiling position. In the coiling position, the tabletop of the coiling table 101 is parallel to the horizontal plane, and in the uncoiling position, the tabletop of the coiling table 101 is parallel to the vertical direction. In this way, by turning over the coiling table 101, the steel coil 3 can be turned from a vertical position to a horizontal position, which is convenient for subsequent processing of the steel coil 3, such as removing the bundling tape and uncoiling.

[0035] Furthermore, a fixed base 102 can be provided, which is used to be installed on the workshop foundation. The above-mentioned coiling table 101 is rotatably installed on the fixed base 102. Driven by the turning drive mechanism 109, the coiling table 101 rotates relative to the fixed base 102, so that it can be switched between the coiling position and the uncoiling position.

[0036] Preferably, the coiling table 101 is provided with supporting feet. When the coiling table 101 is in the uncoiling position, the supporting feet just support on the workshop foundation, which can improve the structural stability and working reliability of the uncoiling device.

[0037] The turning drive mechanism 109 includes but is not limited to using a turning hydraulic cylinder. Taking the turning hydraulic cylinder as an example, the cylinder body is hinged and installed on the workshop foundation, and the output end is hinged to the coiling table 101.

[0038] Preferably, the driving point 104 of the turning table 101 and the turning point 103 of the turning table 101 are relatively arranged on both sides of the axis of the inner hole support unit. Among them, the driving point 104 is the connection point between the turning drive mechanism 109 and the turning table 101, and the turning point 103 is the hinge point between the turning table 101 and the fixed base 102. This can improve the stability and safety of the turning of the turning table 101 and the steel coil 3.

[0039] In one embodiment, the expanding and contracting reel 2 is rotatably installed on the coiling table 101, and correspondingly, a rotation drive mechanism for driving the expanding and contracting reel 2 to rotate is provided on the coiling table 101. By driving the expanding and contracting reel 2 to rotate, the expanding and contracting reel 2 can drive the steel coil 3 to rotate, which is convenient for subsequent process operations, such as facilitating the robot to remove the bundling tape or uncoil, etc.

[0040] Optionally, as Figure 3, the rotation driving mechanism includes a driving motor 106, a driving gear 107 and a transmission gear 108. The driving motor 106 is installed on the winding table 101, the driving gear 107 is installed on the output shaft of the driving motor 106, and the transmission gear 108 is installed on the expandable and contractible drum 2. The transmission gear 108 meshes with the driving gear 107. Among them, the axis of the transmission gear 108 is parallel to the axis of the drum, and more preferably, they are coaxially arranged. The above-mentioned driving motor 106, driving gear 107 and transmission gear 108 are all preferably arranged inside the winding table 101 (taking the winding position as an example, the above-mentioned driving motor 106, driving gear 107 and transmission gear 108 are all below the tabletop of the winding table 101) to avoid interfering with the steel coil 3 placed on the tabletop. In addition, a support bearing 105 can be arranged on the winding table 101 to ensure the installation stability and application reliability of the expandable and contractible drum 2.

[0041] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An expansion and contraction reel that is easy to maintain, comprising a reel main shaft, a plurality of sector plates, a pyramid sleeve mounted on the reel main shaft, and an expansion and contraction drive structure for driving the pyramid sleeve to move along the reel main shaft, wherein the pyramid sleeve cooperates with each of the sector plates in a transmission manner, and is characterized in that: The end of the reel main shaft close to the fan-shaped plate is a cantilever end, and a positioning plate is detachably installed on the cantilever end. The plate surface of the positioning plate is perpendicular to the axis of the reel main shaft, and a plurality of positioning blocks are convexly provided on the periphery of the positioning plate. The fan-shaped plate is matched with positioning holes, and the number of positioning blocks is the same as that of the fan-shaped plate and they are arranged one-to-one, and each positioning block is inserted into the corresponding positioning hole and the two are guided to cooperate.

2. The expansion and contraction reel according to claim 1, characterized in that: The expansion and contraction driving structure includes a pull rod and an expansion and contraction power unit. The reel main shaft is a hollow main shaft. The pull rod is movably arranged in the shaft cavity of the hollow main shaft and one end is connected to the expansion and contraction power unit. The pyramid sleeve is fixedly connected to the pull rod.

3. The expansion and contraction reel according to claim 2, characterized in that: The pyramid sleeve and the pull rod are connected by a flat pin, and a movable window is opened on the hollow main shaft. The flat pin passes through the movable window and is respectively connected to the pyramid sleeve and the pull rod, wherein the length of the movable window in the axial direction of the hollow main shaft should not be less than the movable stroke of the pull rod.

4. The expansion and contraction reel according to claim 2, characterized in that: The expansion and contraction power unit adopts a hydraulic cylinder or a pneumatic cylinder, and the hollow main shaft is flange-connected to the cylinder body of the expansion and contraction power unit.

5. The expansion and contraction reel according to claim 4, characterized in that: The output shaft of the expansion and contraction power unit is connected to the pull rod through a coupling.

6. The expansion and contraction reel according to claim 1, characterized in that: The pyramid sleeve has multiple driving bevel groups, the number of the driving bevel groups is the same as that of the sector plates and they are matched one by one. Each driving bevel group includes multiple driving bevels distributed in sequence along the axial direction of the pyramid sleeve, and the sector plate is provided with multiple bearing drive bevels that match the wedge surfaces of each driving bevel.

7. The expansion and contraction reel according to claim 1, characterized in that: The reel main shaft is provided with a limiting structure for limiting the relative rotation between the pyramid sleeve and the reel main shaft.

8. The expansion and contraction reel according to claim 1, characterized in that: The positioning plate is mounted on the reel spindle by means of fastening screws.

9. A winding device, characterized in that: It comprises a roll receiving platform, on which the expansion and contraction reel according to any one of claims 1 to 8 is installed, and the axis of the reel main shaft is perpendicular to the table surface of the roll receiving platform.

10. The winding device according to claim 9, characterized in that: The expansion and contraction reel is rotatably mounted on the reel receiving platform, and a rotation driving mechanism for driving the reel to rotate is provided on the reel receiving platform.

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