CN115228945A - Pinch roll collar fixing structure and implementation method thereof - Google Patents
Pinch roll collar fixing structure and implementation method thereof Download PDFInfo
- Publication number
- CN115228945A CN115228945A CN202210883484.3A CN202210883484A CN115228945A CN 115228945 A CN115228945 A CN 115228945A CN 202210883484 A CN202210883484 A CN 202210883484A CN 115228945 A CN115228945 A CN 115228945A
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- Prior art keywords
- roller
- pinch roll
- fixing structure
- sleeve
- roll collar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a pinch roll collar fixing structure which comprises a roll shaft, wherein an inner oil slinger, an outer oil slinger and a roll collar assembly are sequentially arranged on the circumference of the roll shaft from left to right, a locking assembly is arranged on one side of the roll collar assembly and comprises a locking sleeve and a taper sleeve, the locking sleeve is connected with the taper sleeve through a flange, a connecting screw rod is arranged at the end part of the roll shaft, a thread groove is formed in the locking sleeve, the connecting screw rod is connected with the thread groove in a threaded engagement manner, a containing cavity corresponding to the taper sleeve is further formed in the locking sleeve, a gasket is arranged in the containing cavity, and a belleville spring is arranged on one side of the gasket; the invention also discloses an implementation method of the pinch roll collar fixing structure. When the lateral pressure of the roll collar is higher, the pressure can be reduced through the belleville springs, so that roll collapse caused by the combined action of alternating stress caused by radial pressure on the roll collar and thermal expansion stress caused by temperature rise of a roll shaft is avoided.
Description
Technical Field
The invention belongs to the technical field of pinch roll collar fixing, and particularly relates to a pinch roll collar fixing structure and an implementation method thereof.
Background
The high-speed wire and rod rolling mill is key equipment for production in steel industry, the installation and fixation of the roll collar of the rolling mill adopts taper sleeve assembly, the keyless connection and load bearing are realized through the friction force of the joint surface, and the friction property and the contact property of the joint surface are very important for the roll collar assembly (because the friction force is used for the keyless connection and the load bearing connection). The existing pinch roll has some problems in the use process, such as:
1. the taper sleeve is assembled in place in a common locking mode under the action of axial pressure by overcoming the resultant force of the friction force between the taper sleeve and the roller shaft, the friction force between the roller ring and the taper sleeve and the axial component force of positive pressure acted on the taper sleeve by the roller shaft, so that mechanical balance is formed; the mode can generate pressure drop phenomenon due to wear deformation of the taper sleeve for a long time;
2. the pinch roll is used for maintaining the clamping force in the whole finish rolling process, the production speed of the wire rod is higher and higher at present, the wire rod is controlled and influenced by the reaction time of an electric appliance, certain clamping force of the wire rod is insufficient in the rolling process, the wire rod is deformed, and the wire rod is influenced to enter a laying head in a good state, so that the delay condition of the electric appliance is compensated by increasing the diameter of the pinch roll, and higher torque is required to keep the clamping force during clamping;
3. the traditional pinch roll adopts a water spraying structure to cool, and although the laying head is provided with an air blowing device to blow away water entering the laying head, the situation that no water enters the laying head laying pipe can be guaranteed; the water entering can affect the service life of the laying pipe of the laying head, even the explosion accident of the laying pipe occurs, and the quality of the subsequent rolled wire rod finished product is affected;
disclosure of Invention
The invention aims to provide a pinch roll collar fixing structure to solve the problems in the background technology. The pinch roll collar fixing structure provided by the invention has the characteristic of avoiding the condition of pressure drop.
The invention also aims to provide a method for realizing the pinch roll collar fixing structure.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pinch roll collars fixed knot constructs, including the roller, be equipped with interior flinger from a left side to the right side in proper order on the circumference of roller, outer flinger and collar subassembly, one side of collar subassembly is equipped with locking Assembly, locking Assembly includes lock sleeve and taper sleeve, pass through flange connection between lock sleeve and the taper sleeve, the taper sleeve cover is established on the circumference of roller, the flange is contradicted in the side of collar subassembly, the tip of roller is equipped with connecting screw, the inside of lock sleeve is equipped with the thread groove, connecting screw passes through thread engagement with the thread groove and is connected, the inside of lock sleeve still is equipped with the appearance chamber corresponding with the taper sleeve, the inside in appearance chamber is equipped with the gasket, one side of gasket is equipped with disc spring.
In order to improve the stability of use, further, the belleville spring is composed of three steel belleville springs connected in parallel. The thickness of the single-piece steel disc spring is 8.15mm.
In order to support the roller ring, the roller ring assembly further comprises a support wheel, a roller ring and a gland, wherein the roller ring is arranged on the circumference of the support wheel, and the gland is fixed on the side surface of the support wheel through a screw.
In order to further strengthen the locking effect of collars under the cover pressure of lock sleeve, improve the time that the locking effect lasts, thereby avoid dropping because of the taper sleeve, the clamping-force is not enough, cause the whole line of altitude to pile steel, the fried roller takes place to hinder people's accident even, furtherly, be equipped with the keyway on the circumference of roller, be equipped with the first keyway corresponding with the keyway on the supporting wheel, be equipped with the second keyway corresponding with the keyway on the taper sleeve, keyway, first keyway and second keyway pass through the key-type connection.
In order to generate air flow when the supporting wheel rotates and accelerate air circulation in the supporting wheel, thereby playing a role of cooling, spraying water to the pinch roll is not needed, the pinch roll is prevented from being cooled and accurately pumped into a subsequent laying head, the service life of a laying head laying pipe is prolonged, and furthermore, a plurality of air holes in an annular array are arranged on the supporting wheel.
To ensure the cooling effect, the angle of the air hole is further 13 °.
In the invention, the method for realizing the pinch roll collar fixing structure further comprises the following steps:
assembling an inner flinger and an outer flinger onto a roll shaft in sequence;
assembling the key on the roll shaft;
aligning the first key groove on the supporting wheel with the key, and assembling the roller ring assembly on the roller shaft;
aligning a second key groove on the taper sleeve with the key, and assembling the taper sleeve on the roller shaft;
and (V) screwing down the locking sleeve to enable the connecting screw rod to be meshed with the thread groove.
Compared with the prior art, the invention has the beneficial effects that:
1. when the lateral pressure of the roll collar is higher, the pressure can be reduced through the belleville springs, so that roll breakage caused by the combined action of alternating stress caused by radial pressure on the roll collar and thermal expansion stress caused by temperature rise of a roll shaft is avoided;
2. the belleville spring can buffer the radial tension force of the roller ring, reduce the roller explosion phenomenon caused by larger tension force, ensure the tension force of the roller ring under long-time use and avoid the phenomena of roller error and pressure drop;
3. according to the invention, the roll shaft, the supporting wheel and the taper sleeve are matched for limiting through the key and the key groove, the locking effect of the roll collar is further enhanced under the covering pressure of the locking sleeve, and the duration time of the locking effect is prolonged, so that high-speed wire arrangement steel stacking, roller blasting and even human injury accidents caused by insufficient clamping force due to pressure drop of the taper sleeve are avoided;
4. the supporting wheel is provided with the plurality of air holes in the annular array, and the air holes enable the supporting wheel to generate air flow when rotating, so that air circulation in the supporting wheel is accelerated, a cooling effect is achieved, water does not need to be sprayed to the pinch roll, the pinch roll is prevented from being cooled and accurately sprayed into a subsequent laying head, and the service life of a laying head laying pipe is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the locking assembly of the present invention;
FIG. 3 is a schematic view of the locking sleeve of the present invention;
FIG. 4 is a schematic view of the roll collar assembly of the present invention;
FIG. 5 is a schematic view of the structure of the support wheel of the present invention;
in the figure: 1. a roll shaft; 2. an inner flinger; 3. an outer flinger; 4. a roll collar assembly; 41. a support wheel; 411. air holes; 412. a first key groove; 42. a roll collar; 43. a gland; 5. a locking assembly; 6. connecting a screw rod; 7. a key; 8. a locking sleeve; 81. a thread groove; 82. a cavity; 9. a taper sleeve; 91. a second keyway; 10. a flange; 11. a gasket; 12. a belleville spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a pinch roll collars fixed knot constructs, including roller 1, interior flinger 2 is equipped with in proper order from a left side to the right side on the circumference of roller 1, outer flinger 3 and roller subassembly 4, one side of roller subassembly 4 is equipped with locking Assembly 5, locking Assembly 5 includes lock sleeve 8 and taper sleeve 9, be connected through flange 10 between lock sleeve 8 and the taper sleeve 9, taper sleeve 9 cover is established on the circumference of roller 1, flange 10 is contradicted at the side of roller subassembly 4, the tip of roller 1 is equipped with connecting screw 6, the inside of lock sleeve 8 is equipped with thread groove 81, connecting screw 6 passes through threaded engagement with thread groove 81 and is connected, the inside of lock sleeve 8 still is equipped with the appearance chamber 82 corresponding with taper sleeve 9, the inside that holds chamber 82 is equipped with gasket 11, one side of gasket 11 is equipped with belleville spring 12.
By adopting the technical scheme, when the lateral direction of the roll collar 42 is under high pressure, the pressure can be reduced through the belleville springs 12, so that roll collapse caused by the combined action of alternating stress caused by radial pressure on the roll collar 42 and thermal expansion stress caused by temperature rise of a roll shaft is avoided; the belleville spring 12 can buffer the radial tension of the roller ring 42, reduce roller explosion caused by larger tension, ensure the tension of the roller ring 42 in long-time use and avoid roller error and pressure drop.
Specifically, the belleville spring 12 is composed of three steel belleville springs connected in parallel. The thickness of the single-piece steel disc spring is 8.15mm.
By adopting the technical scheme, the use stability is improved.
Specifically, the roller ring assembly 4 includes a supporting wheel 41, a roller ring 42, and a pressing cover 43, wherein the roller ring 42 is disposed on the circumference of the supporting wheel 41, and the pressing cover 43 is fixed on the side surface of the supporting wheel 41 by screws.
By adopting the technical scheme, the roll ring 42 is supported.
Example 2
The present embodiment is different from embodiment 1 in that: specifically, the circumference of the roller shaft 1 is provided with a key groove, the support wheel 41 is provided with a first key groove 412 corresponding to the key groove, the taper sleeve 9 is provided with a second key groove 91 corresponding to the key groove, and the key groove, the first key groove 412 and the second key groove 91 are connected by a key 7.
Through adopting above-mentioned technical scheme, it is spacing through key and keyway cooperation between roller 1, supporting wheel 41 and the 9 three of taper sleeve, further strengthened collars 42's locking effect under the cover pressure of lock sleeve 8, improved the time that the locking effect lasts to avoid dropping because of taper sleeve 9 presses, the clamping-force is not enough, causes whole line pile steel of altitude, fried roller and takes place even and injures people's accident.
Example 3
The present embodiment is different from embodiment 1 in that: specifically, the support wheel 41 is provided with a plurality of air holes 411 in an annular array.
By adopting the technical scheme, the supporting wheel 41 can generate air flow when rotating through the arrangement of the air holes 411, and the air circulation in the supporting wheel 41 is accelerated, so that the effect of cooling is achieved, water does not need to be sprayed to the pinch roll, the pinch roll is prevented from being cooled and accurately sprayed into a subsequent laying head, and the service life of a laying head laying pipe is prolonged.
Specifically, the angle of the air holes 411 is 13 degrees, which is obtained by repeated practice, the vibration of the equipment is caused by the too large angle of the air holes, and the good cooling effect cannot be achieved when the angle is too small.
By adopting the technical scheme, the cooling effect is ensured.
Example 4
Specifically, the method for realizing the pinch roll collar fixing structure comprises the following steps:
assembling an inner flinger 2 and an outer flinger 3 on a roll shaft 1 in sequence;
assembling the key 7 to the roller shaft 1;
(III), aligning the first key slot 412 on the supporting wheel 41 with the key 7, and assembling the roller ring assembly 4 on the roller shaft 1;
fourthly, aligning the second key groove 91 on the taper sleeve 9 with the key 7, and assembling the taper sleeve 9 on the roller shaft 1;
and (V) tightening the locking sleeve 8 to enable the connecting screw 6 to be meshed with the thread groove 81.
In summary, when the roll collar 42 is subjected to a large lateral pressure, the pressure can be reduced through the belleville springs 12, so that roll collapse caused by the combined action of alternating stress caused by radial pressure on the roll collar 42 and thermal expansion stress caused by temperature rise of the roll shaft is avoided; the belleville spring 12 can buffer the radial tension force of the roller ring 42, reduce roller explosion caused by larger tension force, ensure the tension force of the roller ring 42 under long-time use and avoid roller error and pressure drop; according to the invention, the roll shaft 1, the supporting wheel 41 and the taper sleeve 9 are matched for limiting through the key and the key slot, the locking effect of the roll collar 42 is further enhanced under the covering pressure of the locking sleeve 8, and the duration time of the locking effect is prolonged, so that high-speed wire arrangement steel stacking, roller blasting and even human injury accidents caused by insufficient clamping force due to pressure drop of the taper sleeve 9 are avoided; the supporting wheel 41 is provided with the plurality of air holes 411 which are in the annular array, and through the arrangement of the air holes 411, the supporting wheel 41 can generate air flow when rotating, so that the air circulation in the supporting wheel 41 is accelerated, the effect of cooling is achieved, water is not required to be sprayed to the pinch roll, cold water of the pinch roll is prevented from being accurately sprayed into a subsequent laying head, and the service life of a laying head laying pipe is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pinch roll collars fixed knot constructs, includes the roller, its characterized in that: the inner oil slinger, the outer oil slinger and the roller ring assembly are sequentially arranged on the circumference of the roller shaft from left to right, one side of the roller ring assembly is provided with a locking assembly, the locking assembly comprises a locking sleeve and a taper sleeve, the locking sleeve is connected with the taper sleeve through a flange, the taper sleeve is sleeved on the circumference of the roller shaft, the flange is abutted to the side face of the roller ring assembly, the end of the roller shaft is provided with a connecting screw rod, the inside of the locking sleeve is provided with a thread groove, the connecting screw rod is connected with the thread groove through thread meshing, the inside of the locking sleeve is also provided with an accommodating cavity corresponding to the taper sleeve, a gasket is arranged inside the accommodating cavity, and one side of the gasket is provided with a disc spring.
2. The pinch roll collar fixing structure of claim 1, wherein: the butterfly spring is composed of three steel butterfly springs connected in parallel.
3. The pinch roll collar fixing structure of claim 2, wherein: the thickness of the single steel disc spring is 8.15mm.
4. The pinch roll collar fixing structure as claimed in claim 1, wherein: the roller ring assembly comprises a supporting wheel, a roller ring and a gland, wherein the roller ring is arranged on the circumference of the supporting wheel, and the gland is fixed on the side face of the supporting wheel through a screw.
5. The pinch roll collar fixing structure of claim 4, wherein: the circumference of the roll shaft is provided with a key groove, the supporting wheel is provided with a first key groove corresponding to the key groove, the taper sleeve is provided with a second key groove corresponding to the key groove, and the key groove, the first key groove and the second key groove are in key connection.
6. The pinch roll collar fixing structure as claimed in claim 4, wherein: the supporting wheel is provided with a plurality of air holes in an annular array.
7. The pinch roll collar fixing structure as claimed in claim 6, wherein: the angle of the air holes is 13 degrees.
8. The method for realizing the pinch roll collar fixing structure of any one of claims 1 to 7, characterized by comprising the following steps of:
assembling an inner flinger and an outer flinger onto a roll shaft in sequence;
assembling the key on the roll shaft;
aligning the first key groove on the supporting wheel with the key, and assembling the roller ring assembly on the roller shaft;
aligning a second key groove on the taper sleeve with the key, and assembling the taper sleeve on the roller shaft;
and (V) screwing down the locking sleeve to enable the connecting screw rod to be meshed with the thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210883484.3A CN115228945A (en) | 2022-07-26 | 2022-07-26 | Pinch roll collar fixing structure and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210883484.3A CN115228945A (en) | 2022-07-26 | 2022-07-26 | Pinch roll collar fixing structure and implementation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115228945A true CN115228945A (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210883484.3A Pending CN115228945A (en) | 2022-07-26 | 2022-07-26 | Pinch roll collar fixing structure and implementation method thereof |
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| CN (1) | CN115228945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020872A (en) * | 2022-12-30 | 2023-04-28 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
-
2022
- 2022-07-26 CN CN202210883484.3A patent/CN115228945A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020872A (en) * | 2022-12-30 | 2023-04-28 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
| CN116020872B (en) * | 2022-12-30 | 2023-10-27 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
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