CN113351647B

CN113351647B - Rolling mill with rollers heated at constant temperature

Info

Publication number: CN113351647B
Application number: CN202110613535.6A
Authority: CN
Inventors: 张翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-12-16
Anticipated expiration: 2041-06-02
Also published as: CN113351647A

Abstract

The invention relates to a rolling mill for heating a roller at constant temperature, which comprises a tube body, wherein clamping grooves are formed in two ends of the tube body, clamping rings are inserted into the clamping grooves in a sliding mode, PTC heating pieces are arranged on the outer sides of the clamping rings, and two ends of the tube body are connected with a roller shaft in a threaded mode. According to the invention, the roller is divided into the pipe body, the clamping ring and the roller shaft, when the roller is used, the roller shaft is separated from the pipe body, the PTC heating sheets are embedded outside the circumference of the clamping ring, the clamping ring is inserted into the two ends of the pipe body to heat the inner walls of the two ends of the pipe body, and then the heat is conducted to the outer sides of the two ends of the pipe body made of metal materials through heat conduction, so that the two ends of the pipe body are heated.

Description

Rolling mill with rollers heated at constant temperature

Technical Field

The invention relates to the technical field of casting, in particular to a rolling mill with rollers heated at constant temperature.

Background

Rolls are the primary working components and tools on a rolling mill that produce continuous plastic deformation of metal. The roller mainly comprises a roller body, a roller neck and a shaft head. The roll body is the middle part of the roll that actually participates in rolling metal. It has a smooth cylindrical or grooved surface. The roll neck is mounted in bearings and transmits the rolling force to the stand through a bearing block and a screw down device. The driving end shaft head is connected with the gear seat through a connecting shaft, and the rotating torque of the motor is transmitted to the roller. The rolls may be arranged in two, three, four or more rolls in the mill stand.

A typical existing roller generally comprises a roller body, a roller neck and a shaft head, when the roller is used, a metal plate to be extruded is placed below the roller, the roller is matched with two rollers to extrude the metal to be extruded, but when the roller is actually used, when some high-grade materials such as strip steel and the like are extruded, edge cracks are easily formed on the edge of the materials, and the product quality is affected.

Disclosure of Invention

The invention provides a rolling mill with rollers heated at constant temperature, aiming at the defects of the prior art.

The invention solves the technical problems through the following technical means:

the rolling mill with the constant-temperature heating roller comprises a tube body, wherein clamping grooves are formed in the two ends of the tube body, clamping rings are arranged in the clamping grooves in a sliding insertion mode, PTC heating pieces are arranged on the outer sides of the clamping rings, and the two ends of the tube body are in threaded connection with the roller shaft.

As the improvement of above-mentioned technical scheme, the rand is including the installation circle of installation PTC heating plate, a plurality of square groove that is evenly distributed is seted up to the side of installation circle, the inside in square groove is inserted and is equipped with the PTC heating plate, the square hole has been seted up to the bottom in square groove, the inside sliding connection in square hole has the ejector sleeve, the inside sliding connection of ejector sleeve has the push rod, the one end that the push rod is located the ejector sleeve outside is rotated and is connected with the connecting rod, be equipped with the spring between push rod and the push rod, the bottom of installation circle is equipped with the slide bar, the outside cover of slide bar is equipped with the sliding sleeve, the connecting rod all rotates with the sliding sleeve to be connected.

As an improvement of the technical scheme, the top of the sliding sleeve is provided with an annular groove.

As an improvement of the above technical solution, the roller shaft includes an end cover portion, the end cover portion, one side of the end cover portion is provided with a threaded portion adapted to the pipe body, and a bearing portion protruding from both sides of the end cover portion is provided at a center of the end cover portion.

As the improvement of the technical scheme, the bearing part is of a hollow structure, and one end of the bearing part is matched with the groove.

As an improvement of the technical scheme, the PTC heating plate is in a circular arc shape.

As the improvement of the technical scheme, the roller comprises a pipe body, a clamping ring and a roller shaft, the roller shaft is separated from the pipe body, the PTC heating pieces are embedded outside the circumference of the clamping ring, the clamping ring is inserted into the two ends of the pipe body to heat the inner walls of the two ends of the pipe body, and heat is conducted to the outer sides of the two ends of the pipe body through heat conduction.

The invention has the advantages that: according to the invention, the roller is divided into the tube body, the clamping ring and the roller shaft, the roller shaft is separated from the tube body when the roller is used, the PTC heating pieces are embedded outside the circumference of the clamping ring, the clamping ring is inserted into two ends of the tube body to heat the inner walls of the two ends of the tube body, and then heat is conducted to the outer sides of the two ends of the tube body made of metal materials through heat conduction, so that the two ends of the tube body are heated.

Further, make when using through setting up screw thread portion, screw thread portion and body both ends inner wall screw-thread fit, the installation is more firm, through setting up the bearing portion outstanding with end cover portion both sides for when roller and body installation, convex bearing portion is ejecting right with the sliding sleeve, and then the sliding sleeve slides and compresses tightly the PTC heating plate, and it is more convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the collar of FIG. 1;

FIG. 3 is a schematic view of the roller shaft of FIG. 1;

FIG. 4 is a cross-sectional view of the tubular body of FIG. 1;

fig. 5 is a schematic view of a roll structure.

In the figure: 1. a tube body; 2. a card slot; 3. a collar; 4. a PTC heating sheet; 5. a roll shaft; 6. rolling; 401. installing a ring; 402. a square groove; 403. a square hole; 404. pushing the pipe; 405. a push rod; 406. a connecting rod; 407. a spring; 408. a slide bar; 409. a sliding sleeve; 410. a groove; 501. an end cap portion; 502. a threaded portion; 503. a bearing portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

Referring to the attached drawings, the rolling mill for heating the roller at constant temperature comprises a tube body 1, wherein clamping grooves 2 are formed in two ends of the tube body 1, a clamping ring 3 is inserted into the clamping grooves 2 in a sliding mode, PTC heating pieces 4 are arranged on the outer side of the clamping ring 3, and two ends of the tube body 1 are connected with roller shafts 5 in a threaded mode.

Through dividing into body 1 with the roll, rand 3 and roller 5, separate roller 5 and body 1 during the use, and inlay PTC heating plate 4 and locate the circumference outside of rand 3, realize the inner wall heating to body 1 both ends through inserting rand 3 and establishing body 1 both ends, and then the outside at body 1 both ends of pipe to metal material with heat conduction, realize the heating to body 1 both ends, further open a slot through the inner wall at body 1, draw-in groove 2 and rand 3 looks adaptation, make to rand 3 slip insert the spacing after establishing, make it can't continue along the inside slip of body 1 inner wall, through setting up roller 5, the transmission to the roll is realized to the transmission of roll to the outer installation drive disk assembly of roller 5 during the use.

According to the invention, the roller is divided into the pipe body 1, the clamping ring 3 and the roller shaft 5, the roller shaft 5 is separated from the pipe body 1 when the roller is used, the PTC heating pieces 4 are embedded outside the circumference of the clamping ring 3, the clamping ring 3 is inserted into two ends of the pipe body 1 to heat the inner walls of the two ends of the pipe body 1, and then heat is conducted to the outer sides of the two ends of the pipe body 1 made of metal materials through heat conduction to heat the two ends of the pipe body 1.

As an improvement of the above technical solution, the collar 3 includes an installation ring 401 for installing the PTC heating sheet 4, a plurality of square grooves 402 which are uniformly distributed are opened on the side surface of the installation ring 401, the PTC heating sheet 4 is inserted in the inside of the square grooves 402, square holes 403 are opened at the bottom of the square grooves 402, a push pipe 404 is slidably connected in the inside of the square holes 403, a push rod 405 is slidably connected in the inside of the push pipe 404, one end of the push rod 405, which is located on the outer side of the push pipe 404, is rotatably connected with a connecting rod 406, a spring 407 is arranged between the push rod 405 and the push rod 405, a slide rod 408 is arranged at the bottom of the installation ring 401, a sliding sleeve 409 is sleeved on the outer side of the slide rod 408, and the connecting rod 406 is rotatably connected with the sliding sleeve 409.

By arranging the mounting ring 401 and arranging the square grooves 402 on the outer side of the mounting ring 401, the PTC heating sheets 4 can be embedded into the square grooves 402 one by one during use, and the mode of arranging the plurality of PTC heating sheets 4 can realize uniform heating of the whole inner wall and can be independently replaced after a single PTC heating sheet 4 is damaged, so that the use cost is reduced; secondly, when in use, the sliding sleeve 409 is pushed to slide along the sliding rod 408, the sliding sleeve 409 drives the connecting rod 406 to rotate and pushes the push rod 405 and the push pipe 404 to slide, the PTC heating sheet 4 is pushed to be in contact with the inner wall of the pipe body 1, the spring 407 is arranged, so that when the PTC heating sheet 4 is in contact with the inner wall, the PTC heating sheet 4 is difficult to be in close contact with the inner wall of the pipe body 1 because the PTC heating sheet 4 is generally made of ceramic hard materials, if the PTC heating sheet 4 is possibly crushed during assembly in a clamping mode, the PTC heating sheet 4 is always in contact with the inner wall through the stretching of the spring 407, and the PTC heating sheet is prevented from being crushed by further sliding of the push pipe 404 through self-adaptive stretching alignment protection.

As an improvement of the above technical solution, the top of the sliding sleeve 409 is provided with a ring-shaped groove 410.

The top of the sliding sleeve 409 is provided with the annular groove 410, so that when the roller shaft 5 is installed, the bearing part 503 of the roller shaft is inwards moved and embedded into the groove 410, the sliding sleeve 409 is stably pushed, and the PTC heating sheet 4 is clamped.

In the improvement of the above technical solution, the roller shaft 5 includes an end cover portion 501, a screw portion 502 adapted to the pipe body 1 is provided at one side of the end cover portion 501, and a bearing portion 503 protruding from both sides of the end cover portion 501 is provided at the center of the end cover portion 501.

Make when using through setting up screw portion 502, screw portion 502 and body 1 both ends inner wall screw-thread fit, the installation is more firm, through setting up protruding bearing portion 503 with end cap portion 501 both sides for when roller 5 and body 1 installation, convex bearing portion 503 is ejecting the sliding sleeve 409 to the right, and then sliding sleeve 409 slides and compresses tightly PTC heating plate 4, and it is more convenient to use.

As a modification of the above technical solution, the bearing portion 503 has a hollow structure, and one end of the bearing portion 503 is fitted with the groove 410.

By providing the bearing part 503 with a hollow structure, in actual use, the lead of the PTC heating sheet 4 can be led out through the hollow bearing part 503, and the bearing part 503 is matched with the groove 410, when the roller shaft 5 is installed, the bearing part 503 enters the groove 410, and the fixation is firmer.

As an improvement of the above technical solution, the PTC heating sheet 4 is in the shape of a circular arc.

Through setting up the PTC heating plate 4 that is convex for when the installation, PTC heating plate 4 is bigger with the installation circle 401 outside area of contact, and the installation obtains more firmly, and secondly, its outside is bigger with 1 inner wall area of contact of body, and the heating is more even.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The rolling mill with the roller heated at constant temperature is characterized by comprising a roller (6), wherein the roller (6) comprises a pipe body (1), a clamping ring (3) and a roller shaft (5), clamping grooves (2) are formed in two ends of the pipe body (1), the clamping ring (3) is inserted into the clamping grooves (2) in a sliding mode, PTC heating pieces (4) are arranged on the outer side of the clamping ring (3), and the roller shaft (5) is connected to two ends of the pipe body (1) in a threaded mode;

the clamp ring (3) comprises an installation ring (401) for installing PTC heating sheets (4), a plurality of square grooves (402) which are uniformly distributed are formed in the side face of the installation ring (401), the PTC heating sheets (4) are inserted into the square grooves (402), square holes (403) are formed in the bottom of the square grooves (402), push pipes (404) are connected to the insides of the square holes (403) in a sliding mode, push rods (405) are connected to the insides of the push pipes (404) in a sliding mode, one ends, located on the outer sides of the push pipes (404), of the push rods (405) are rotatably connected with connecting rods (406), springs (407) are arranged between the push rods (405) and the push pipes (404), sliding rods (408) are arranged at the bottom of the installation ring (401), sliding sleeves (409) are sleeved on the outer sides of the sliding rods (408), the connecting rods (406) are rotatably connected with sliding sleeves (409), and annular grooves (410) are formed in the top of the sliding sleeves (409); the roll shaft (5) comprises an end cover part (501), a threaded part (502) matched with the pipe body (1) is arranged on one side of the end cover part (501), and bearing parts (503) protruding out of two sides of the end cover part (501) are arranged in the center of the end cover part (501); the bearing part (503) is of a hollow structure, and one end of the bearing part (503) is matched with the groove (410); the PTC heating sheet (4) is arc-shaped;

by arranging the mounting ring (401) and arranging the square grooves (402) on the outer side of the mounting ring (401), the PTC heating sheets (4) are inserted into the square grooves (402) one by one during use, and the mode of arranging the plurality of PTC heating sheets (4) enables the single PTC heating sheet (4) to be replaced independently after being damaged while the whole inner wall is uniformly heated, so that the use cost is reduced; secondly, when the PTC heater is used, the sliding sleeve (409) is pushed to slide along the sliding rod (408), the sliding sleeve (409) drives the connecting rod (406) to rotate and pushes the push rod (405) and the push pipe (404) to slide, the PTC heater (4) is pushed to be in contact with the inner wall of the pipe body (1), the spring (407) is arranged, so that when the PTC heater (4) is in contact with the inner wall, the PTC heater is difficult to be in close contact with the inner wall of the pipe body (1) due to the fact that the PTC heater (4) is made of ceramic hard materials, if the PTC heater is possible to be crushed during assembly in a clamping mode, the PTC heater is always in contact with the PTC heater (4) through the expansion of the spring (407), and the PTC heater is prevented from being further slid and crushed by the push pipe (404) through self-adaptive expansion alignment protection; when the PTC heating piece is used, the threaded part (502) is in threaded fit with the inner walls of the two ends of the tube body (1), the installation is more stable, and the bearing parts (503) protruding out of the two sides of the end cover part (501) are arranged, so that when the roll shaft (5) and the tube body (1) are installed, the protruding bearing parts (503) push the sliding sleeve (409) out rightwards, and then the sliding sleeve (409) slides to compress the PTC heating piece (4), and the use is more convenient; by arranging the bearing part (503) with a hollow structure, when the PTC heating plate is actually used, a lead of the PTC heating plate (4) can be led out through the hollow bearing part (503), the bearing part (503) is matched with the groove (410), and when the roller shaft (5) is installed, the bearing part (503) enters the groove (410), so that the fixing is firmer.