CN110893417A - Roller end structure of connecting shaft of bar and wire rolling mill - Google Patents
Roller end structure of connecting shaft of bar and wire rolling mill Download PDFInfo
- Publication number
- CN110893417A CN110893417A CN201911341780.5A CN201911341780A CN110893417A CN 110893417 A CN110893417 A CN 110893417A CN 201911341780 A CN201911341780 A CN 201911341780A CN 110893417 A CN110893417 A CN 110893417A
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- China
- Prior art keywords
- gear ring
- gland
- sleeve
- inner gear
- ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
Abstract
The invention discloses a roller end structure of a connecting shaft of a rod and wire mill, which comprises an external gear shaft sleeve, a limiting gland, an internal gear ring and a gland screw, wherein the external gear shaft sleeve is connected with the internal gear ring through a gear pair; the stop hook is pressed on the outer circular surfaces of the limiting gland and the inner gear ring, a boss C is arranged on the left side of the stop hook, the inner end surface of the boss C is tightly pressed on the outer end surface of the limiting gland, the right end surface of the stop hook is attached to the step surface of the inner gear ring, and the stop hook is connected with the inner gear ring through a set screw. The roller end structure of the invention reinforces the limiting gland, ensures that the limiting screw is not easy to break, and the gland can not fall off from the connecting shaft, thereby avoiding potential safety hazard.
Description
Technical Field
The invention relates to a roller end structure of a connecting shaft of a bar and wire rolling mill, belonging to the field of machinery.
Background
The connecting shaft of the bar and wire rod rolling mill is the main transmission equipment of the bar and wire rod rolling field. One end of the roller is connected with a speed reducer, and the other end of the roller is connected with a roller, so that the roller can transmit power. The quality of the equipment directly influences whether the rolling mill normally operates and the quality of rolled products.
As can be seen from figure 9, the roller end structure of the existing rolling mill connecting shaft is that an inner gear ring is connected with an outer gear shaft sleeve through a gear pair, a limiting gland is sleeved outside the outer gear shaft sleeve and is connected with the inner gear ring through a gland screw, and the inner gear ring is of an integral structure.
Disclosure of Invention
The invention aims to solve the problem of providing a roller end structure of a connecting shaft of a rolling mill, which strengthens a limiting gland, ensures that a limiting screw is not easy to break, and prevents the gland from falling off from the connecting shaft, thereby avoiding potential safety hazards. Meanwhile, the structure ensures that the limiting gland is reliably connected on the external gear shaft sleeve, and the normal operation of the rolling mill and the quality of rolled steel are ensured. In addition, the inner gear ring in the roller end structure is a split type inner gear ring, when the gear pair of the inner gear ring is seriously worn, only one part can be replaced, and the maintenance cost is greatly reduced. Meanwhile, the split type inner gear ring reduces the material of a forging blank, improves the utilization rate of the blank and saves the production cost.
The invention relates to a roller end structure of a connecting shaft of a bar and wire rolling mill, which comprises an external gear shaft sleeve, a limiting gland, an internal gear ring and a gland screw, wherein the external gear shaft sleeve is connected with the internal gear ring through a gear pair; the stop hook is pressed on the outer circular surfaces of the limiting gland and the inner gear ring, a boss C is arranged on the left side of the stop hook, the inner end surface of the boss C is tightly pressed on the outer end surface of the limiting gland, the right end surface of the stop hook is attached to the step surface of the inner gear ring, and the stop hook is connected with the inner gear ring through a set screw.
Furthermore, flat key grooves are uniformly distributed on the outer circular surface of the inner gear ring, the stop hooks are arranged in the flat key grooves, threaded holes are formed in the flat key grooves of the inner gear ring, and the stop hooks are fixed outside the inner gear ring by screwing the set screws and the threaded holes.
Furthermore, the stop hook is further provided with a boss D, the boss D is arranged in the middle of the stop hook, a groove E is formed in a flat key groove of the inner gear ring, and the boss D is clamped in the groove E.
Furthermore, the number of the stop hooks is four, and the stop hooks are uniformly distributed on the periphery of the excircle of the internal gear ring 3.
Furthermore, a left threaded hole and a right threaded hole are formed in each flat key groove of the inner gear ring, and each stop hook is connected with the inner gear ring through two fastening screws.
Furthermore, the ring gear is of a split structure and comprises a gear sleeve and a shaft sleeve which are combined.
Furthermore, the inner gear ring is of a welded structure, and the gear sleeve and the shaft sleeve are formed by welding.
Furthermore, the inner gear ring is of an end face tooth type structure, and the tooth sleeve and the shaft sleeve are connected through end face teeth; the end face teeth of the tooth sleeve side are meshed with the end face teeth on the left side of the shaft sleeve, the end face teeth and the end face teeth are connected through screws I, the sealing sleeve is sleeved outside the end face teeth, and the sealing sleeve is made of rubber.
Furthermore, the inner gear ring is of a spline pair type structure, and the gear sleeve and the shaft sleeve are assembled and connected in an interference fit mode through a spline pair; the internal spline of the gear sleeve is connected with the external spline of the shaft sleeve in an interference fit manner, the gland sleeve is sleeved outside the shaft sleeve, the gland is tightly pressed on the end face of the gear sleeve by the screw II, a groove is processed in an inner hole of the gland, and a sealing ring is arranged in the groove.
The roller end structure has the advantages that: firstly, the limiting gland is reinforced by adding the stop hook and the set screw, so that the gland screw is not easy to break, the limiting gland cannot fall off, the personal safety is ensured, the normal operation of a rolling mill is also ensured, and the quality of rolled steel is improved; when the gear pair of the external gear shaft sleeve and the inner gear ring is seriously abraded, only the gear sleeve in the split type inner gear ring needs to be replaced, so that the maintenance cost is greatly reduced; and thirdly, the split type inner gear ring reduces the material of a forging blank, improves the utilization rate of the blank and saves the production cost.
Drawings
FIG. 1 is a schematic illustration of the roll end configuration of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a first schematic view of the ring gear;
FIG. 4 is a second schematic view of the ring gear;
FIG. 5 is a schematic view III of the ring gear;
FIG. 6 is a view from the direction B in FIG. 4;
FIG. 7 is a schematic view of a catch;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic illustration of a prior art roll end construction;
fig. 10 is a prior art integrated ring gear blank;
fig. 11 is a blank view of the split ring gear in the invention.
Detailed Description
Example 1
As can be seen from fig. 1 and 2, the roller end structure of the extension spindle of the rod and wire mill of the present invention comprises an external gear shaft sleeve 1, a limiting gland 2, an internal gear ring 3, a gland screw 6, wherein the external gear shaft sleeve 1 is connected with the internal gear ring 3 through a gear pair, the limiting gland 2 is sleeved outside the external gear shaft sleeve 1 and is tightly pressed on the end surface of the internal gear ring 2 through the gland screw 6, the structure further comprises a plurality of external reinforcing structures, and each reinforcing structure comprises a stop hook 4 and a set screw 5; the stop hook 4 is pressed on the outer circular surfaces of the limiting gland 2 and the inner gear ring 3, a boss C is arranged on the left side of the stop hook 4, the inner end surface of the boss C is tightly pressed on the outer end surface of the limiting gland 2, the right end surface of the stop hook 4 is attached to the step surface of the inner gear ring 3, and the stop hook 4 is connected with the inner gear ring 3 through a set screw 5.
The structure of the invention is that on the basis of the existing structure, a stop hook 4 and a set screw 5 are added, so that the limiting gland 2 is reinforced. Specifically, the method comprises the following steps: the inner end face of a boss C in the stop hook 4 is tightly pressed on the outer end face of the limiting gland 2, and an axial force is applied to the limiting gland to limit the axial movement of the limiting gland; meanwhile, the stop hook 4 is pressed on the outer circular surfaces of the limiting gland 2 and the inner gear ring 3 and is in screw connection with the inner gear ring 3, so that the radial movement of the limiting gland is limited, namely the limiting gland 2 is reinforced through the stop hook 4, so that the limiting gland 2 can bear larger impact force, and even if the tooth part of the outer gear shaft sleeve impacts the limiting gland when the roller is withdrawn, the gland screw 6 is not easy to break; meanwhile, even if the outer gear shaft sleeve is not installed in place during assembling, when the working connecting shaft has a swing angle, the end face side of the tooth part of the outer gear shaft sleeve can continuously impact the limiting gland, and the gland screw 6 is not easy to break. Due to the action of the stop hook 4, the limiting gland 2 can be reliably fixed outside the external gear shaft sleeve 1, and even if a gland screw is broken, the limiting gland cannot fall off from the connecting shaft, so that potential safety hazards to peripheral equipment and personnel are avoided, and the normal operation of the rolling mill is not influenced.
Example 2
As can be seen from fig. 1, 2 and 6, the roll end structure of the present invention includes: the outer circular surface of the inner gear ring 3 is provided with flat key grooves which are uniformly distributed, the stop hooks 4 are arranged in the flat key grooves, threaded holes are formed in the flat key grooves of the inner gear ring 3, and the stop hooks 4 are fixed outside the inner gear ring 3 by screwing the set screws 5 and the threaded holes.
The stop hook 4 is reliably connected with the inner gear ring 3 through the flat key groove and the set screw 5, and meanwhile, the reliable connection between the limiting gland 2 and the outer gear shaft sleeve 1 is reinforced. Therefore, no matter the external gear shaft sleeve impacts the limiting gland during roller withdrawing or the end face of the tooth part of the external gear shaft sleeve impacts the limiting gland during work, the gland screw is not easy to break, and the phenomenon of falling of the limiting gland cannot occur.
Example 3
As can be seen from fig. 2, 4, 6, and 7, in the roll end structure of the present invention: the stop hook 4 is further provided with a boss D, the boss D is arranged in the middle of the stop hook 4, a groove E is formed in a flat key groove of the inner gear ring 3, and the boss D is clamped in the groove E.
The arrangement of the boss D and the groove E enables the connection between the stop hook 4 and the inner gear ring 3 to be firmer, the connection between the limiting gland 2 and the outer gear shaft sleeve 1 is reinforced, the gland screw 6 is not easy to break, and the falling phenomenon of the limiting gland 2 cannot occur.
Example 4
As can be seen from fig. 1, in the roll end structure of the present invention: the number of the stop hooks 4 is four, and the stop hooks are uniformly distributed on the periphery of the excircle of the internal gear ring 3.
As can be seen from fig. 6, 7, and 8, the roller end structure of the present invention includes: two screw holes about all being provided with in every flat keyway of ring gear 3, every dog 4 all is connected with the ring gear through two holding screw 5.
The number of the stop hooks 4 is four, the number of the set screws 5 is eight, the action ① of reinforcing the connection between the limiting gland 2 and the external tooth shaft sleeve 1 is achieved, the gland screws are not prone to fracture, and the phenomenon that the limiting gland falls off cannot occur.
When the stop hook 4 is installed, the side boss C of the stop hook is firstly clamped on the side surface of the limiting gland 2, so that the limiting gland is subjected to axial force to ensure the connection with the external gear shaft sleeve, and meanwhile, the limiting gland is protected; then the middle boss D is embedded into the groove E of the flat key groove of the inner gear ring 3, and finally the set screw 5 is screwed down.
Example 5
As can be seen from fig. 3, 4 and 5, the inner gear ring 3 of the present invention is a split structure, and includes a gear sleeve 7 and a shaft sleeve 8, which are combined together. When the gear pair of the external gear shaft sleeve and the inner gear ring is seriously abraded, the shaft sleeve side of the inner gear ring is less abraded and can be continuously used, and only the gear sleeve 7 in the split type inner gear ring needs to be replaced, so that the maintenance cost is greatly reduced.
The split structure has the following three specific forms:
①, fig. 3 shows that the inner gear ring 3 is of a welded structure, and the gear sleeve 7 and the shaft sleeve 8 are formed by welding.
②, as shown in figure 4, the inner gear ring 3 is of an end face tooth type structure, the gear sleeve 7 and the shaft sleeve 8 are connected through end face teeth 14, the end face teeth on the right side of the gear sleeve 7 are meshed with the end face teeth on the left side of the shaft sleeve 8 and are connected through screws I10, the sealing sleeve 9 is sleeved outside the end face teeth 14, the sealing sleeve 9 is made of rubber, and the sealing sleeve 9 can prevent internal lubricating oil from leaking.
③, as shown in fig. 5, the inner gear ring 3 is of a spline pair structure, the gear sleeve 7 and the shaft sleeve 8 are assembled and connected through a spline pair 15 in an interference fit manner, an inner spline of the gear sleeve 7 is connected with an outer spline of the shaft sleeve 8 in an interference fit manner, the gland 11 is sleeved outside the shaft sleeve 8, the gland 11 is tightly pressed on the end surface of the gear sleeve 7 by a screw II 13, a groove is processed on an inner hole of the gland 11, and a sealing ring 12 is arranged in the groove, so that the interference fit is ensured during the design of the spline pair, the relative shaking of the spline pair is reduced, the impact is reduced, the use abrasion is ensured to be small.
As can be seen from fig. 10 and 11, compared with the existing integral ring gear, the split ring gear of the invention reduces the material of the forging blank, improves the utilization rate of the blank, and saves the production cost.
Claims (9)
1. The roller end structure of bar wire rolling mill spiale, it includes external tooth axle sleeve (1), spacing gland (2), ring gear (3), gland screw (6), external tooth axle sleeve (1) passes through the gear pair with ring gear (3) and is connected, and spacing gland (2) cover is in the outside of external tooth axle sleeve (1), and sticiss on the terminal surface of ring gear (2) through gland screw (6), characterized by: the novel steel wire rope further comprises a plurality of outer reinforcing structures, wherein each reinforcing structure comprises a stop hook (4) and a set screw (5); the stop hook (4) is pressed on the outer circular surfaces of the limiting gland (2) and the inner gear ring (3), a boss C is arranged on the left side of the stop hook (4), the inner end surface of the boss C is tightly pressed on the outer end surface of the limiting gland (2), the right end surface of the stop hook (4) is attached to the step surface of the inner gear ring (3), and the stop hook (4) is connected with the inner gear ring (3) through a set screw (5).
2. The roll end construction of claim 1 wherein: the outer circular surface of the inner gear ring (3) is provided with flat key grooves which are uniformly distributed, the stop hooks (4) are arranged in the flat key grooves, threaded holes are formed in the flat key grooves of the inner gear ring (3), and the stop hooks (4) are fixed outside the inner gear ring (3) by screwing the set screws (5) and the threaded holes.
3. The roll end construction of claim 1 wherein: the stop hook (4) is further provided with a boss D, the boss D is arranged in the middle of the stop hook (4), a groove E is formed in a flat key groove of the inner gear ring (3), and the boss D is clamped in the groove E.
4. The roll end construction of claim 1 wherein: the number of the stop hooks (4) is four, and the stop hooks are uniformly distributed on the periphery of the excircle of the inner gear ring (3).
5. The roll end construction of claim 2 wherein: two left and right threaded holes are formed in each flat key groove of the inner gear ring (3), and each stop hook (4) is connected with the inner gear ring through two fastening screws (5).
6. The roll end construction of claim 1 wherein: the inner gear ring (3) is of a split structure and comprises a gear sleeve (7) and a shaft sleeve (8) which are combined.
7. The roll end construction of claim 6 wherein: the inner gear ring (3) is of a welded structure, and the gear sleeve (7) and the shaft sleeve (8) are formed by welding.
8. The roll end construction of claim 6 wherein: the inner gear ring (3) is of an end face tooth type structure, and the tooth sleeve (7) and the shaft sleeve (8) are connected through end face teeth (14); the end face teeth on the right side of the gear sleeve (7) are meshed with the end face teeth on the left side of the shaft sleeve (8) and are connected through a screw I (10), the sealing sleeve (9) is sleeved outside the end face teeth (14), and the sealing sleeve (9) is made of rubber.
9. The roll end construction of claim 6 wherein: the inner gear ring (3) is of a spline pair structure, and the gear sleeve (7) and the shaft sleeve (8) are assembled and connected in an interference manner through a spline pair (15); the internal spline of the gear sleeve (7) is connected with the external spline of the shaft sleeve (8) in an interference fit manner, the gland (11) is sleeved outside the shaft sleeve (8), the gland (11) is tightly pressed on the end face of the gear sleeve (7) by the screw II (13), a groove is processed in an inner hole of the gland (11), and a sealing ring (12) is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341780.5A CN110893417A (en) | 2019-12-24 | 2019-12-24 | Roller end structure of connecting shaft of bar and wire rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341780.5A CN110893417A (en) | 2019-12-24 | 2019-12-24 | Roller end structure of connecting shaft of bar and wire rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110893417A true CN110893417A (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911341780.5A Pending CN110893417A (en) | 2019-12-24 | 2019-12-24 | Roller end structure of connecting shaft of bar and wire rolling mill |
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| CN (1) | CN110893417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515756A (en) * | 2021-12-27 | 2022-05-20 | 石横特钢集团有限公司 | Hot rolling process and device for reinforcing steel bars of threaded rib anchor rods |
-
2019
- 2019-12-24 CN CN201911341780.5A patent/CN110893417A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515756A (en) * | 2021-12-27 | 2022-05-20 | 石横特钢集团有限公司 | Hot rolling process and device for reinforcing steel bars of threaded rib anchor rods |
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