CN215467164U - Wedge type winding drum - Google Patents
Wedge type winding drum Download PDFInfo
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- CN215467164U CN215467164U CN202120553661.2U CN202120553661U CN215467164U CN 215467164 U CN215467164 U CN 215467164U CN 202120553661 U CN202120553661 U CN 202120553661U CN 215467164 U CN215467164 U CN 215467164U
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- wedge
- main shaft
- hollow main
- crosshead
- sleeve
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Abstract
The utility model discloses a tapered wedge type winding drum which comprises a hollow main shaft, four sector plates, four groups of tapered wedge assemblies, a connecting assembly, a pull rod, a supporting assembly and a spring assembly, wherein the four groups of tapered wedge assemblies are positioned between the hollow main shaft and the sector plates; each group of inclined wedge components comprises an inner axial inclined wedge and an outer radial inclined wedge, the inner straight surface of the axial inclined wedge is arranged in an inclined wedge mounting groove of the hollow main shaft, the outer inclined surface of the axial inclined wedge is matched with the inner inclined surface of the radial inclined wedge, and the outer straight surface of the radial inclined wedge is matched with the sector plate; and a hole at one end of the axial wedge is connected with the connecting component. According to the utility model, two adjacent sector plates are completely attached without gaps, so that the coiled steel strip has no indentation, and the surface quality of the steel strip is improved; meanwhile, dust and the like cannot fall into the interior of the winding drum, so that the service life of the winding drum is prolonged.
Description
Technical Field
The utility model relates to equipment on a cold-rolled strip steel production line, in particular to a wedge type winding drum.
Background
The cold-rolling coiler is key equipment on a cold-rolled strip steel production line and is used for coiling a cold-rolled strip steel into a cylinder shape so as to be stored and transported at a later stage. The reel drum is a key component of the coiler, which directly affects the service life of the coiler and the coiling quality of the strip.
The current cold rolling coiler has the following disadvantages: the tapered wedge is matched with the sector plate through an inclined plane, and the tapered wedge drives the sector plate to move radially when moving axially, so that the diameter of the winding drum is expanded or reduced; gaps exist between adjacent sector plates of the winding drum, and the gaps are larger and larger as the diameter of the winding drum is larger, so that indentations are left on the steel strip when the steel strip is wound, and the surface quality of the steel strip is reduced; meanwhile, dust, impurities and the like can fall into the winding drum, so that the service life of the winding drum is influenced; second, although the hollow spindle includes the fitting portion and the support portion to integrate the drum expanding and contracting portion and the head support portion, there are the following problems: 1. the crosshead assembly for connecting the pull rod and the wedge is thicker, so that the size of an installation slotted hole in the hollow main shaft is larger, and the strength of the hollow main shaft is reduced; 2. the strength of the head supporting component is poor, the support jumping is too large after long-term use, so that the precision of the winding drum is reduced, the winding quality of strip steel is affected, the winding drum needs to be maintained off the machine or even replaced by a new winding drum, the time is wasted, and the cost is increased.
Disclosure of Invention
The utility model aims to solve the problem of providing the wedge-type winding drum, wherein a gap is not formed between every two adjacent sector plates in a completely attaching manner, so that a coiled steel strip has no indentation, and the surface quality of the steel strip is improved; meanwhile, dust and the like cannot fall into the interior of the winding drum, so that the service life of the winding drum is prolonged. In addition, the size of the mounting groove hole on the hollow main shaft is smaller, and the strength of the hollow main shaft is improved. Meanwhile, the head supporting assembly has better strength and high winding drum precision, and ensures the curling quality of the strip steel.
The utility model discloses a tapered wedge type winding drum which comprises a hollow main shaft, four sector plates, four groups of tapered wedge assemblies, a connecting assembly, a pull rod, a supporting assembly and a spring assembly, wherein the four groups of tapered wedge assemblies are positioned between the hollow main shaft and the sector plates; each group of inclined wedge components comprises an inner axial inclined wedge and an outer radial inclined wedge, the inner straight surface of the axial inclined wedge is arranged in an inclined wedge mounting groove of the hollow main shaft, the outer inclined surface of the axial inclined wedge is matched with the inner inclined surface of the radial inclined wedge, and the outer straight surface of the radial inclined wedge is matched with the sector plate; and a hole at one end of the axial wedge is connected with the connecting component.
Further, the width of the wedge installation groove on the hollow main shaft is slightly larger than that of the axial wedge.
Further, the connecting assembly comprises a cross head assembly and a nut; the crosshead component comprises a left reinforcing sleeve, a right reinforcing sleeve and a middle crosshead; the left reinforcing sleeve, the middle crosshead and the right reinforcing sleeve are sequentially sleeved on the pull rod from left to right, four heads of the crosshead respectively extend out of a crosshead mounting groove hole of the hollow main shaft to be connected with holes at the right end of each axial wedge, the left end of the crosshead assembly is tightly pressed on a shaft shoulder of the pull rod, and a nut tightly presses the right end of the crosshead assembly and is locked on the pull rod.
Furthermore, a crosshead mounting slot hole of the hollow spindle is arranged at the junction of the head part of the hollow spindle and the sector plate mounting part, the axial length of the crosshead mounting slot hole is slightly larger than the stroke of the pull rod and larger than the length L of the crosshead assembly, and the radial width of the crosshead mounting slot hole is slightly larger than the thickness H of any one of the crosshead assemblies.
Further, the central bore diameter of the mounting of the crosshead assembly of the hollow spindle, from which the bore extends all the way to the head, is larger than the total length L of the crosshead assembly.
Furthermore, the supporting component comprises a left transparent cover, a left bearing, a right bearing, a bearing sleeve, a right transparent cover and a shaft sleeve; the two bearings are sleeved on the excircle of the head part of the hollow main shaft, and the supporting sleeve is sleeved outside the two bearings and is positioned with the outer rings of the two bearings through a shaft shoulder; the left transparent cover is sleeved on the hollow main shaft and is fixedly connected with the supporting sleeve, and the right end face of the left transparent cover is pressed on the outer ring of the left bearing; the shaft sleeve is arranged between the pull rod and the hollow main shaft in the radial direction of the heads of the pull rod and the hollow main shaft; the right transparent cover is sleeved on the right section of the shaft sleeve and is fixedly connected with the supporting sleeve, and the left end face of the right transparent cover is tightly pressed on the right side of the right bearing outer ring.
Furthermore, the supporting component also comprises a middle spacer sleeve and a right spacer sleeve, the middle spacer sleeve is sleeved on the hollow main shaft, and the left end surface and the right end surface of the middle spacer sleeve are respectively contacted with the right end surface of the left bearing inner ring and the left end surface of the right bearing; the left end surface of the left bearing inner ring is tightly abutted against the shaft shoulder of the hollow main shaft; the right spacer sleeve is sleeved on the excircle of the head of the hollow main shaft, the left end face of the right spacer sleeve is pressed on the right end face of the right bearing inner ring, and the left end face of the large-diameter section of the shaft sleeve is pressed on the right end face of the right spacer sleeve.
Further, the spring assembly is connected with the sector plate and the hollow spindle; the spring assembly comprises a spring, a spring bolt and a spring cover plate, the spring is arranged in a small hole of a counter bore on the sector plate, and the spring bolt penetrates through the spring and is fastened in a threaded hole of the hollow main shaft; the spring cover plate is fixed on the large hole of the counter bore on the sector plate and is consistent with the outer surface shape of the sector plate.
The wedge type winding drum has the advantages that: the wedge component is divided into an axial wedge and a radial wedge, so that the contact surface of the wedge component and the sector plates is a straight surface, and no fit clearance exists between the wedge component and the sector plates, so that two adjacent sector plates are completely attached without a clearance, a coiled steel belt has no indentation, and the surface quality of the steel belt is improved; meanwhile, dust and the like cannot fall into the winding drum, so that the service life of the winding drum is prolonged; the crosshead assembly comprises a left crosshead assembly, a middle crosshead assembly and a right crosshead assembly, and the thickness H of each crosshead assembly is 1/3 of the whole thickness, so that the size of a crosshead mounting slot hole on the hollow main shaft is smaller, and the strength of the hollow main shaft 1 is improved; thirdly, the supporting assembly solves the installation problem of the crosshead assembly, improves the strength of the head support of the hollow main shaft, has high winding drum precision and good strip steel curling quality, saves time and reduces cost.
Drawings
The utility model is explained in more detail below with reference to the figures and examples:
FIG. 1 is a first cross-sectional view of a tapered wedge reel of the present invention;
FIG. 2 is a second cross-sectional view of a tapered wedge reel of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a structural view of the hollow spindle of the present invention;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;
FIG. 7 is a block diagram of the cam assembly of the present invention;
FIG. 8 is a block diagram of the crosshead assembly of the present invention;
FIG. 9 is a left side view of FIG. 8;
fig. 10 is an enlarged schematic view at I in fig. 1.
Detailed Description
Example 1
As can be seen from fig. 1, 2, 4, 5, 6 and 7, the tapered wedge type reel of the present invention comprises a hollow main shaft 1, four sector plates 2, four sets of tapered wedge assemblies 3, a connecting assembly, a pull rod 5, a support assembly and a spring assembly 7, wherein the four sets of tapered wedge assemblies 3 are located between the hollow main shaft 1 and the sector plates 2; each group of the inclined wedge components 3 comprises an inner axial inclined wedge 31 and an outer radial inclined wedge 32, the inner straight surface of the axial inclined wedge 31 is arranged in the inclined wedge mounting groove of the hollow main shaft 1, the outer inclined surface of the axial inclined wedge is matched with the inner inclined surface of the radial inclined wedge 32, and the outer straight surface of the radial inclined wedge 32 is matched with the sector plate 2; the bore at one end of the axial wedge 31 is connected to the attachment assembly.
The working principle of the wedge component 3 in the wedge type winding drum is as follows: when the expansion oil cylinder drives the pull rod 5 to move leftwards, the pull rod 5 drives the axial wedge 31 to move leftwards through the connecting component 4, the inclined surface of the axial wedge 31 pushes the radial wedge 32 to expand, and the radial wedge 32 drives the sector plate 2 to expand outwards, so that the expansion of the winding drum is realized; when the expansion oil cylinder drives the pull rod 5 to move rightwards, the pull rod 5 drives the axial wedge 31 to move rightwards through the connecting component, the radial wedge 32 contracts inwards, at the moment, the gap between the sector plate 2 and the radial wedge 32 contracts inwards under the action of the spring component 7, and then the winding drum is reduced.
According to the wedge type winding drum, the wedge component 3 is divided into the axial wedge 31 and the radial wedge 32, so that the contact surface of the wedge component 3 and the sector plates 2 is a straight surface, and no fit clearance exists between the two, so that no clearance exists between two adjacent sector plates in a complete fit manner, a coiled steel strip has no indentation, and the surface quality of the steel strip is improved; meanwhile, dust and the like cannot fall into the interior of the winding drum, so that the service life of the winding drum is prolonged.
Example 2
As can be seen from fig. 2, 4, 5, 6, and 7, the wedge reel of the present invention: the width of the wedge installation groove 101 on the hollow main shaft 1 is slightly larger than that of the axial wedge 31.
The width of the wedge mounting groove 101 of the hollow spindle 1 is convenient for the axial wedge 31 to be placed in the mounting groove, but the axial wedge 31 cannot be too large, otherwise the axial wedge 31 can shake in the wedge mounting groove 101 when moving, and the precision and the quality of the winding drum are affected.
Example 3
As can be seen from fig. 1, 2, 3, 5, 6, 7, 8, 9, the wedge reel of the present invention: the connecting assembly comprises a crosshead assembly 4 and a nut 6; the crosshead assembly 4 includes two left and right reinforcing sleeves 41 and a middle crosshead 42; the left reinforcing sleeve 41, the middle crosshead 42 and the right reinforcing sleeve 41 are sequentially sleeved on the pull rod 5 from left to right, four ends of the crosshead 42 respectively extend out of a crosshead mounting groove hole 102 of the hollow main shaft 1 to be connected with holes at the right end of each axial wedge 31, the left end of the crosshead assembly 4 is tightly pressed on a shaft shoulder of the pull rod 5, and the nut 6 tightly presses the right end of the crosshead assembly 4 and is locked on the pull rod 5.
When the connecting component is installed; firstly, the left reinforcing sleeve 41 is placed into a crosshead mounting slot hole 102 of the hollow main shaft 1 and is sleeved on the pull rod 5 by rotating 90 degrees; then the middle crosshead 42 is placed into a crosshead mounting slot hole 102 of the hollow main shaft 1 and is sleeved on the pull rod 5 by rotating 90 degrees and is tightly attached to the left reinforcing sleeve 41; then, the right reinforcing sleeve 41 is placed into a crosshead mounting slot hole 102 of the hollow main shaft 1, rotated by 90 degrees, sleeved on the pull rod 5 and tightly attached to the crosshead 42; finally, the nut 6 is put into the central hole of the head of the hollow main shaft 1 and screwed on the pull rod 5.
The crosshead assembly 4 must have a certain strength as a connecting member and therefore requires a certain thickness, in particular the thickness of the crosshead near the central bore. However, if the integral structure is adopted, the size of the slot hole on the hollow main shaft 1 is larger, which reduces the strength of the hollow main shaft 1. Therefore, the crosshead assembly 4 is changed into three pieces, namely a left piece, a middle piece and a right piece, and then the three pieces are respectively installed, and the thickness H of each piece is 1/3 of the whole thickness, so that the size of the crosshead installation slot hole 102 on the hollow main shaft 1 is smaller, and the strength of the hollow main shaft 1 is improved.
Example 4
As can be seen from fig. 2, 3, 5, 6, 7, 8 and 9, the wedge reel of the present invention: a crosshead mounting slot 102 of the hollow spindle 1 is provided at the intersection of the nose of the hollow spindle 1 and the mounting portion of the sector plate 3, the crosshead mounting slot 102 having an axial length slightly greater than the stroke of the tie rod 5 and greater than the length L of the crosshead assembly 4 and a radial width slightly greater than the thickness H of any one of the crosshead assemblies 4.
Meanwhile, the central bore diameter of the mounting portion of the crosshead assembly 4 of the hollow main shaft 1 is larger than the total length L of the crosshead assembly 4, and the bore extends from there to the head for ease of machining.
If the crosshead assembly 4 is of a one-piece construction, the radial width of the crosshead mounting slot 102 in the hollow main shaft 1 is greater than the overall thickness 3H of the crosshead assembly 4, thereby reducing the strength of the hollow main shaft 1. According to the utility model, the crosshead component 4 is changed into three blocks, namely a left block, a middle block and a right block, and the thickness of each block is H, so that the radial width of the crosshead mounting slot hole 102 on the hollow main shaft 1 is slightly larger than the thickness H, and the strength of the hollow main shaft 1 is improved on the premise of ensuring the strength of the crosshead component 4.
Example 5
As can be seen from fig. 1 and 2, the wedge reel of the present invention: the supporting component comprises a left transparent cover 8, a left bearing 9, a right bearing 9, a bearing sleeve 10, a right transparent cover 13 and a shaft sleeve 14; the two bearings 9 are sleeved on the excircle of the head of the hollow main shaft 1, and the supporting sleeve 10 is sleeved outside the two bearings 9 and is positioned with the outer rings of the two bearings 9 through a shaft shoulder; the left transparent cover 8 is sleeved on the hollow main shaft 1 and is fixedly connected with the supporting sleeve 10, and the right end face of the left transparent cover 8 is pressed on the outer ring of the left bearing 9; the shaft sleeve 14 is arranged between the pull rod 5 and the hollow main shaft 1 in the radial direction of the heads; the right transparent cover 13 is sleeved on the right section of the shaft sleeve 14 and is tightly connected with the support sleeve 10, and the left end face of the right transparent cover 13 is tightly pressed on the right side of the outer ring of the right bearing 9.
The left bearing 9 and the right bearing 9 in the supporting component ensure radial positioning and axial positioning of the outer ring through the supporting sleeve 10, the axial positioning of the outer ring is further ensured through the left transparent cover 8 and the right transparent cover 13, and the reliable positioning of the bearings 9 is realized.
Wherein, the head of the hollow main shaft 1 needs to adopt a shaft sleeve 14 to install and fill the hole because the central aperture is larger due to the processing requirement; after the crosshead assembly 4 is installed, the shaft sleeve 14 in the support assembly is placed into the middle hole of the head of the hollow main shaft 1 and is fixed by bolts and a blank cap 15. Therefore, the supporting component not only solves the installation problem of the crosshead component, but also improves the strength of the head support of the hollow main shaft 1, the precision of the winding drum is high, and the coiling quality of the strip steel is good. Because the hollow main shaft does not need to be replaced frequently, the time is saved and the cost is reduced.
Example 6
As can be seen from fig. 1 and 2, the support assembly further includes a middle spacer 11 and a right spacer 12, the middle spacer 11 is sleeved on the hollow spindle 1, and left and right end faces of the middle spacer are respectively contacted with a right end face of the left inner ring of the bearing 9 and a left end face of the right bearing 9; the left end surface of the inner ring of the left bearing 9 is tightly leaned on the shaft shoulder of the hollow main shaft 1; the right spacer 12 is sleeved on the outer circle of the head of the hollow main shaft 1, the left end face of the right spacer is pressed on the right end face of the inner ring of the right bearing 9, and the left end face of the large-diameter section of the shaft sleeve 14 is tightly pressed on the right end face of the right spacer 12.
The left bearing 9 and the right bearing 9 in the supporting component are limited by the middle spacer 11, the right spacer 12 and the shaft shoulder of the hollow main shaft 1, so that the axial positioning of the inner ring is ensured, and the reliable positioning of the bearings 9 is realized.
The utility model improves the strength of the head part of the hollow main shaft through the supporting component, ensures the precision of the winding drum and the curling quality of the strip steel, saves time and reduces cost.
Example 7
As can be seen from fig. 1 and 10, the wedge reel of the present invention: the spring assembly 7 is connected with the sector plate 2 and the hollow main shaft 1; the spring assembly 7 comprises a spring 71, a spring bolt 72 and a spring cover plate 73, wherein the spring 71 is arranged in a small hole of a counter bore on the sector plate 2, and the spring bolt 72 passes through the spring 71 and is fastened in a threaded hole of the hollow spindle 1; the spring cover plate 73 is fixed on the big hole of the counter bore on the sector plate 2 and is consistent with the shape of the outer surface of the sector plate 2.
Since the wedge assembly 3 of the present invention is in planar contact with the sector plate 2, when the drum is retracted, it cannot smoothly achieve retraction of the sector plate without the pressure provided by the spring. Therefore, the spring assembly 7 is arranged to ensure the connection between the sector plate and the hollow main shaft, and the expansion and the reduction of the winding drum are smoothly realized.
Claims (8)
1. The utility model provides a wedge reel, it includes hollow main shaft (1), four sector plate (2), four group's wedge subassemblies (3), coupling assembling, pull rod (5), supporting component, spring unit (7), characterized by: four groups of wedge components (3) are positioned between the hollow main shaft (1) and the sector plate (2); each group of inclined wedge components (3) comprises an internal axial inclined wedge (31) and an external radial inclined wedge (32), the inner straight surface of the axial inclined wedge (31) is arranged in the inclined wedge mounting groove of the hollow main shaft (1), the outer inclined surface of the axial inclined wedge is matched with the inner inclined surface of the radial inclined wedge (32), and the outer straight surface of the radial inclined wedge (32) is matched with the sector plate (2); the hole at one end of the axial wedge (31) is connected with the connecting component.
2. The cammed reel of claim 1, wherein: the width of the wedge installation groove (101) on the hollow main shaft (1) is slightly larger than that of the axial wedge (31).
3. The cammed reel of claim 1, wherein: the connecting assembly comprises a cross head assembly (4) and a nut (6); the crosshead component (4) comprises a left reinforcing sleeve (41), a right reinforcing sleeve (41) and a middle crosshead (42); the left reinforcing sleeve (41), the middle crosshead (42) and the right reinforcing sleeve (41) are sequentially sleeved on the pull rod (5) from left to right, four heads of the crosshead (42) extend out of crosshead mounting slotted holes (102) of the hollow main shaft (1) respectively to be connected with holes at the right end of each axial wedge (31), the left end of the crosshead assembly (4) is pressed on a shaft shoulder of the pull rod (5), and a nut (6) presses the right end of the crosshead assembly (4) and is locked on the pull rod (5).
4. The cammed reel of claim 1, wherein: a crosshead mounting slot hole (102) of the hollow main shaft (1) is formed in the junction of the head of the hollow main shaft (1) and a mounting part of the sector plate (2), the axial length of the crosshead mounting slot hole (102) is slightly larger than the stroke of the pull rod (5) and larger than the length L of the crosshead assembly (4), and the radial width of the crosshead mounting slot hole is slightly larger than the thickness H of any one of the crosshead assemblies (4).
5. The cammed reel of claim 1, wherein: the central bore diameter of the mounting of the crosshead assembly (4) of the hollow spindle (1), from which the bore extends all the way to the head, is larger than the total length L of the crosshead assembly (4).
6. The cammed reel of claim 1, wherein: the supporting component comprises a left transparent cover (8), a left bearing (9), a right bearing (9), a supporting sleeve (10), a right transparent cover (13) and a shaft sleeve (14); the two bearings (9) are sleeved on the excircle of the head of the hollow main shaft (1), and the support sleeve (10) is sleeved outside the two bearings (9) and is positioned with the outer rings of the two bearings (9) through a shaft shoulder; the left transparent cover (8) is sleeved on the hollow main shaft (1) and is fixedly connected with the supporting sleeve (10), and the right end face of the left transparent cover (8) is pressed on the outer ring of the left bearing (9); the shaft sleeve (14) is arranged between the pull rod (5) and the hollow main shaft (1) in the radial direction of the heads; the right transparent cover (13) is sleeved on the right section of the shaft sleeve (14) and is fixedly connected with the supporting sleeve (10), and the left end face of the right transparent cover (13) is tightly pressed on the right side of the outer ring of the right bearing (9).
7. The cammed reel of claim 1, wherein: the supporting component also comprises a middle spacer sleeve (11) and a right spacer sleeve (12), the middle spacer sleeve (11) is sleeved on the hollow main shaft (1), and the left end surface and the right end surface of the middle spacer sleeve are respectively contacted with the right end surface of the inner ring of the left bearing (9) and the left end surface of the right bearing (9); the left end surface of the inner ring of the left bearing (9) is tightly abutted against the shaft shoulder of the hollow main shaft (1); the right spacer bush (12) is sleeved on the excircle of the head of the hollow main shaft (1), the left end face of the right spacer bush is pressed on the right end face of the inner ring of the right bearing (9), and the left end face of the large-diameter section of the shaft sleeve (14) is pressed on the right end face of the right spacer bush (12).
8. The cammed reel of claim 1, wherein: the spring assembly (7) is connected with the sector plate (2) and the hollow main shaft (1); the spring assembly (7) comprises a spring (71), a spring bolt (72) and a spring cover plate (73), the spring (71) is arranged in a small hole of a counter bore on the sector plate (2), and the spring bolt (72) penetrates through the spring (71) and is fastened in a threaded hole of the hollow main shaft (1); the spring cover plate (73) is fixed on a large hole of a counter bore on the sector plate (2) and is consistent with the shape of the outer surface of the sector plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120553661.2U CN215467164U (en) | 2021-03-18 | 2021-03-18 | Wedge type winding drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120553661.2U CN215467164U (en) | 2021-03-18 | 2021-03-18 | Wedge type winding drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215467164U true CN215467164U (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120553661.2U Active CN215467164U (en) | 2021-03-18 | 2021-03-18 | Wedge type winding drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215467164U (en) |
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2021
- 2021-03-18 CN CN202120553661.2U patent/CN215467164U/en active Active
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