CN211990266U

CN211990266U - Roller

Info

Publication number: CN211990266U
Application number: CN202020385288.XU
Authority: CN
Inventors: 吴国良
Original assignee: Changzhou Haoming Machinery Manufacturing Co ltd
Current assignee: Changzhou Haoming Machinery Manufacturing Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-24
Anticipated expiration: 2030-03-24

Abstract

The utility model belongs to the technical field of the roll technique and specifically relates to a roll, including roll core and collars, the upper surface of roll core is opened has a plurality of recesses, the internal surface of collars has a plurality of connecting strips that match with the recess, the distance of recess bottom to collars internal surface is greater than the height of connecting strip, open respectively on the both ends terminal surface of collars has the locking ring fixed slot, there is a layer of elastic layer between locking ring fixed slot and the locking ring, the upper end of locking ring is connected with the swivel pin, the contact surface of the handheld section of swivel pin outside the locking ring and collars terminal surface of collars is the plane, the roll core, the outside of locking ring still is connected with clamp ring; the utility model provides an internal surface of collars have a plurality of and recess assorted connecting strip, recess bottom to the distance of collars internal surface be greater than the height of connecting strip, leave certain gap between installation back connecting strip and the recess, the roll collars during operation temperature risees can take place the inflation of certain degree, and the gap can play the cushioning effect to reduce the risk that takes place the fracture after the collars are used for a long time.

Description

Roller

Technical Field

The invention relates to the technical field of rollers, in particular to a roller.

Background

The roller comprises a roller core (comprising a roller neck part) and a roller ring positioned outside the roller core, the roller core and the roller ring are usually made of different materials, and the roller can meet the requirements of a rolling mill on the performances of wear resistance, thermal fatigue resistance and the like of the roller ring and can also ensure the obdurability of the roller core and the roller neck. The rolls, as the main consumable parts of the rolling mill, have a direct impact on product quality, production efficiency, etc.

The existing roller is generally assembled in two ways, one way is that two ends of a roller ring are respectively connected with a steel plate face plate through a bolt shaft, but the requirement of the assembly process on precision is very high, the other way is that interference assembly is adopted, the roller ring is positioned by utilizing the friction force of the interference, but the requirement on the grasping degree of the interference is very high, because the interference generates larger internal stress, the roller ring is easy to crack when in use, and the two assembling ways can influence the product quality.

Disclosure of Invention

The utility model aims at: the defects in the prior art are overcome, and the roller with the roller ring accurate in positioning and long in service life is provided.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a roller comprises a roller core and a roller ring, wherein a plurality of grooves are formed in the upper surface of the roller core, a plurality of connecting strips matched with the grooves are formed in the inner surface of the roller ring, the distance from the bottom of each groove to the inner surface of the roller ring is larger than the height of each connecting strip, locking ring fixing grooves are formed in the end faces of the two ends of the roller ring respectively, an elastic layer is arranged between each locking ring fixing groove and each locking ring, a rotating pin is connected to the upper end of each locking ring, the contact surface between the rotating pin and the end face of the roller ring is a plane, the rotating pin is located at the holding section outside each locking ring, and a compression ring is further connected to the outer side of.

Furthermore, the rotating pin comprises a handheld section and a connecting section, a circle of external threads are arranged on the outer surface of the connecting section, and a connecting hole which is matched with the connecting section and is provided with a circle of internal threads is formed in the locking ring.

Furthermore, the outer diameter of the handheld section is larger than that of the connecting section, and a circle of gasket is arranged between the handheld section and the locking ring.

Furthermore, a flexible layer is arranged on the contact surface of the hand-held section and the end surface of the roll collar.

Furthermore, a circle of sealing element fixing grooves are formed in the middle of the locking ring, and sealing elements are detachably connected in the sealing element fixing grooves.

Further, the sealing member fixing groove is formed in an S-shape on the surface of the locking ring.

Further, two side surfaces of the sealing member fixing groove are perpendicular to the bottom surface of the fixing groove.

Further, the width of the sealing element fixing groove is 1/5-1/4 of the height of the locking ring.

Furthermore, the number of the grooves and the number of the connecting strips are three, the grooves and the connecting strips are uniformly distributed on the roller core and the roller ring respectively, and after the roller ring and the roller core are installed, the gap between the connecting strips and the grooves is 0.3-0.5 mm.

Adopt the technical scheme of the utility model's beneficial effect is:

the utility model provides an internal surface of collars have a plurality of and recess assorted connecting strip, the width of recess, length and the width of connecting strip, the length size equals, the recess bottom is greater than the height of connecting strip to the distance of collars internal surface, collars and roller core installation back leaves certain gap between connecting strip and the recess, the collars during operation temperature risees and can take place the inflation of certain degree, the gap can play the cushioning effect to reduce the risk that the collars took place the fracture after using for a long time.

The utility model discloses in have one deck elastic layer between locking ring fixed slot and the locking ring, the elastic layer is located between the bottom surface of locking ring and the bottom of locking ring fixed slot, adopts this structure, can improve the degree of compactness of being connected between locking ring and the locking ring fixed slot, can avoid simultaneously because the hard contact takes place the displacement in the use between locking ring and the locking ring fixed slot.

The utility model provides a rotatory round pin is convenient for the installation of locking ring on the one hand and is dismantled, and on the other hand can play certain positioning action to the collars, for the location precision of further improvement collars, on the roll core, the outside of locking ring still is connected with the clamp ring.

Drawings

In order to more clearly illustrate the technical solution of the present embodiment, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor. Wherein the content of the first and second substances,

fig. 1 is a schematic sectional structure diagram of a roll of the present invention.

Fig. 2 is a schematic structural diagram of a locking ring according to the present invention.

Fig. 3 is a schematic side view of the roll collar of the present invention.

In the figure: 1 roller core, 2 roller rings, 3 locking rings, 4 compression rings, 5 rotating pins, 6 connecting strips, 7 locking ring fixing grooves and 8 sealing elements.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention. The utility model discloses utilize structural schematic diagram etc. to carry out the detailed description, when detailing the embodiment of the utility model provides a, the schematic diagram is the example only, and it should not restrict here the scope of the utility model protection. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.

Referring to fig. 1 and 2, a roll includes a roll core 1 and a roll collar 2, the upper surface of the roll core 1 is provided with a plurality of grooves, the inner surface of the roll collar 2 is provided with a plurality of connecting strips 6 matching with the grooves, the width and length of the grooves are equal to the width and length of the connecting strips 6, the distance from the bottom of the grooves to the inner surface of the roll collar 2 is greater than the height of the connecting strips 6, after the roll collar 2 and the roll core 1 are installed, a certain gap is left between the connecting strips 6 and the grooves, when the roll collar 2 works, a certain degree of expansion occurs when the temperature rises, the gap can play a role of buffering, so as to reduce the risk of cracking after the roll collar 2 is used for a long time, the end surfaces of the two ends of the roll collar 2 are respectively provided with locking ring fixing grooves 7, in this embodiment, the inner diameter size of the locking ring fixing grooves 7 is slightly greater than the outer diameter of the locking ring 3, and the difference in size is selected, the specific operation is the conventional technical means in the field, which is not described in detail in the present invention, an elastic layer is arranged between the locking ring fixing groove 7 and the locking ring 3, the elastic layer is located between the bottom surface of the locking ring 3 and the bottom of the locking ring fixing groove 7, in this embodiment, a rubber layer with steel wire fibers can be used as the elastic layer, the thickness of the elastic layer can be 0.3-0.5mm, and the elastic layer is specifically adjusted according to the actual use requirement, by adopting this structure, the connection compactness between the locking ring 3 and the locking ring fixing groove 7 can be improved, meanwhile, the displacement between the locking ring 3 and the locking ring fixing groove 7 due to hard contact in the use process can be avoided, the upper end of the locking ring 3 is connected with the rotating pin 5, the contact surface between the handheld section of the rotating pin 5 located outside the locking ring 3 and the end surface of the roller ring 2 is a plane, on the other hand, the roll collar 2 can be positioned to a certain extent, and in order to further improve the positioning accuracy of the roll collar 2, a compression ring 4 is further connected to the roll core 1 and the outer side of the locking ring 3. The distance between the bottom of the locking ring 3 and the rotation pin 5 is equal to the height of the locking ring fixing groove 7.

During installation, firstly, the roll collar 2 is sleeved on the roll core 1 on a lathe, after the positions of the roll collar 2 and the roll core 1 are adjusted, an elastic layer is laid on the locking ring fixing grooves 7 at the two ends of the roll collar 2, then the locking ring 3 is installed, and finally the compression ring 4 is installed on the roll core 1 and on the outer side of the locking ring 3.

In order to improve the installation efficiency of the rotating pin 5 and improve the use convenience of the rotating pin 5, the rotating pin 5 comprises a handheld section and a connecting section, the outer surface of the connecting section is provided with a circle of external threads, the locking ring 3 is provided with a connecting hole which is matched with the connecting section and is provided with a circle of internal threads, the outer diameter of the handheld section is larger than that of the connecting section, and a circle of gasket is arranged between the handheld section and the locking ring 3.

In order to further improve the fixing stability between the rotating pin 5 and the roller ring 2, a flexible layer is arranged on the end face contact surface of the handheld section and the roller ring 2, and the flexible layer is connected with the handheld section through an adhesive, the flexible layer in the embodiment is a rubber layer, the thickness of the rubber layer can be 0.5-0.8mm, and the rubber layer is specifically arranged according to actual use requirements.

Referring to fig. 2, a circle of sealing member 8 fixing grooves are formed in the middle of the locking ring 3, the sealing members 8 are detachably connected in the sealing member 8 fixing grooves, the sealing members 8 are made of rubber materials with steel wire fibers, the structural design of the sealing members 8 further improves the connection sealing performance between the locking ring 3 and the roller ring 2, the locking ring 3 is thermally expanded in the use process, and the structural design of the sealing member 8 fixing grooves provides a space for the thermal expansion of the locking ring 3 to a certain extent, so that the roller ring 2 can be further prevented from cracking in the use process.

The sealing member 8 fixed slot is the S type setting on the surface of locking ring 3, adopts this structural design, and sealing member 8 is fixed more stably in the sealing member 8 fixed slot, and long-term use also can not deviate from. In the embodiment, two side surfaces of the fixing groove of the sealing element 8 are perpendicular to the bottom surface of the fixing groove, the structure is adopted, the installation efficiency of the sealing element 8 is high, the width of the fixing groove of the sealing element 8 is 1/5-1/4 of the height of the locking ring 3, and by adopting the structure, the installation sealing performance between the locking ring 3 and the roller ring 2 is ensured, on the other hand, the integral strength of the locking ring 3 is ensured, and the service life of the locking ring 3 is prolonged.

Referring to fig. 3, three grooves and three connecting strips 6 are respectively arranged and uniformly distributed on the roller core 1 and the roller ring 2, and after the roller ring 2 and the roller core 1 are installed, the gap between the connecting strips 6 and the grooves is 0.3-0.5 mm.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A roll, characterized by: the roller comprises a roller core and a roller ring, wherein a plurality of grooves are formed in the upper surface of the roller core, a plurality of connecting strips matched with the grooves are formed in the inner surface of the roller ring, the distance from the bottom of each groove to the inner surface of the roller ring is larger than the height of each connecting strip, locking ring fixing grooves are formed in the end faces of the two ends of the roller ring respectively, an elastic layer is arranged between each locking ring fixing groove and each locking ring, a rotating pin is connected to the upper end of each locking ring, the contact surface between the handheld section of each rotating pin, which is located outside each locking ring, and the end face of the roller ring is a plane, and a compression ring is further connected to the.

2. A roll as claimed in claim 1, characterized in that: the rotary pin comprises a handheld section and a connecting section, wherein a circle of external threads are arranged on the outer surface of the connecting section, and a connecting hole which is matched with the connecting section and is provided with a circle of internal threads is formed in the locking ring.

3. A roll as claimed in claim 1, characterized in that: the outer diameter of the handheld section is larger than that of the connecting section, and a circle of gasket is arranged between the handheld section and the locking ring.

4. A roll as claimed in claim 1, characterized in that: and a flexible layer is arranged on the contact surface of the handheld section and the end surface of the roll collar.

5. A roll as claimed in claim 1, characterized in that: the middle part of the locking ring is provided with a circle of sealing element fixing grooves, and sealing elements are detachably connected in the sealing element fixing grooves.

6. A roll according to claim 5, characterized in that: the sealing element fixing groove is arranged on the surface of the locking ring in an S shape.

7. A roll according to claim 6, characterized in that: two side surfaces of the sealing element fixing groove are perpendicular to the bottom surface of the fixing groove.

8. A roll according to claim 5, characterized in that: the width of the sealing element fixing groove is 1/5-1/4 of the height of the locking ring.

9. A roll as claimed in claim 1, characterized in that: the roll core is provided with three grooves and three connecting strips which are uniformly distributed on the roll core and the roll ring respectively, and after the roll ring and the roll core are installed, the gap between the connecting strips and the grooves is 0.3-0.5 mm.