CN210030795U

CN210030795U - Spheroidizing annealing furnace with high spheroidizing efficiency

Info

Publication number: CN210030795U
Application number: CN201920332114.4U
Authority: CN
Inventors: 蔡荣昌; 周亚苹
Original assignee: Deya Furnace Technology Jiangsu Co Ltd
Current assignee: Deya Furnace Technology Jiangsu Co Ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-02-07
Anticipated expiration: 2029-03-15

Abstract

The utility model discloses a spheroidizing annealing stove of high balling efficiency, which comprises a base, the top left side screw of base even has the control cabinet, the top of base has welded first furnace body, second furnace body and third furnace body from a left side to the right side in proper order, the equal screwed connection of the right side bottom opening part of the top end opening part of first furnace body and third furnace body has the sealing door, screw connection has heating device and convection fan respectively at both ends about the inner chamber rear side of first furnace body and second furnace body, both sides central point puts all to embed has cooling blower around the inner chamber of second furnace body and third furnace body, the communicating rectangle through-hole of inner chamber has all been seted up to the contact surface bottom of first furnace body, second furnace body and third furnace body. This spheroidizing annealing stove of high spheroidization efficiency can realize the spheroidizing annealing operation of work piece assembly line shape, and then shortens work piece spheroidizing annealing cycle, improves work piece spheroidizing annealing efficiency, and the practicality is strong.

Description

Spheroidizing annealing furnace with high spheroidizing efficiency

Technical Field

The utility model relates to a heat treatment equipment technical field specifically is a spheroidizing annealing furnace of high balling efficiency.

Background

Spheroidizing annealing mainly means annealing for spheroidizing carbides in steel to obtain a structure of spherical or granular carbides uniformly distributed on a ferrite matrix, and is mainly applied to eutectoid steels and hypereutectoid steels such as carbon tool steels, alloy tool steels, bearing steels and the like, these steels are rolled, forged and then air-cooled, and the resulting structures are lamellar pearlite and network cementite, which are hard and brittle and not only difficult to cut, and is also easy to deform and crack in the subsequent quenching process, and the spheroidizing annealing is carried out to obtain a globular pearlite structure, wherein the cementite is spherical particles and is dispersed on the ferrite matrix, compared with the flaky pearlite, the cementite not only has low hardness and is convenient for cutting processing, but also has the advantages that austenite grains are not easy to grow up during quenching and heating, the deformation and cracking tendency of the workpiece is small during cooling, in addition, spheroidizing annealing is sometimes used for some hypoeutectoid steels requiring improvement of cold plastic deformation. The spheroidizing annealing heating temperature is Ac1+ 20-40 or Acm-20-30 ℃, the spheroidizing annealing is subjected to isothermal cooling or direct slow cooling after heat preservation, therefore, reticular carbides cannot be eliminated, if hypereutectoid steel has the reticular carbides, normalizing is firstly carried out before the spheroidizing annealing, and the spheroidizing annealing can be ensured to be normally carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balling annealing stove of high balling efficiency to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a spheroidizing annealing furnace with high spheroidizing efficiency comprises a base, wherein a console is connected to the left side of the top end of the base through screws, a first furnace body, a second furnace body and a third furnace body are sequentially welded to the top end of the base from left to right, the outer walls of the first furnace body, the second furnace body and the third furnace body are sequentially welded, a sealing door is connected to an opening at the top end of the first furnace body and an opening at the bottom end of the right side of the third furnace body through screws, a heating device and a convection fan are respectively connected to the left and right ends of the rear sides of inner cavities of the first furnace body and the second furnace body through screws, the heating device and the convection fan are electrically connected with the console, cooling fans are embedded in the central positions of the front and rear sides of the inner cavities of the second furnace body and the third furnace body and electrically connected with the console, an atomization cooling device is connected to the top end of the inner cavity of the third furnace body, the top end of the atomization cooling device extends out of the upper surface of a third furnace body, rectangular through holes with communicated inner cavities are formed in the bottom ends of contact surfaces of the first furnace body, the second furnace body and the third furnace body, outer rings of bearings are in interference fit with the left lower corners of the front and the back of the inner cavity of the first furnace body, second cylindrical rods are in interference fit with the inner rings of the bearings, a servo motor is connected with a screw at the right lower corner of the back side of the inner cavity of the third furnace body and is electrically connected with a control console, outer rings of the bearings are in interference fit with the right lower corners of the front side of the inner cavity of the third furnace body and correspond to the servo motor, one end of the first cylindrical rod is in interference fit with the inner rings of the bearings, the other end of the first cylindrical rod is locked with the output end of the servo motor through a coupler, gears are in key connection with the front and the back sides of the outer walls of the second cylindrical rod, and the chain runs through the inner chamber of rectangle through-hole, the outside of chain has the rectangular block from a left side to the right side in proper order bolted connection, both ends left side all has welded the spout around the inner chamber of second furnace body and third furnace body, the slider has been pegged graft to the inner chamber bottom of spout, the inboard welding of slider has the insulated door, the through-hole has all been seted up to both sides around the right side bottom of insulated door, the welding of the right side top of insulated door has first rectangle pole, two the top of first rectangle pole extends the upper surface of second furnace body and third furnace body respectively and welds the second rectangle pole, the top screw connection of second furnace body has hydraulic cylinder's one end, hydraulic cylinder's the other end and the bottom central point of second rectangle pole put looks screw connection, hydraulic cylinder and control cabinet electric connection.

Preferably, the distance between the front chain and the rear chain is smaller than the width of the inner cavity of the rectangular through hole.

Preferably, the section of the heat insulation door is rectangular, and the area of the section of the heat insulation door is larger than that of the rectangular through hole.

Preferably, the slider is dovetail-shaped, and the slider is inserted in the inner cavity of the sliding groove in a matched mode.

Preferably, the height of the inner cavity of the through hole is larger than the distance between the upper surface and the lower surface of the chain.

Compared with the prior art, the beneficial effects of the utility model are that: this spheroidizing annealing furnace of high spheroidization efficiency, through first furnace body, the second furnace body, the third furnace body, heating device, convection current fan and cooling blower's cooperation, with control first furnace body, realize different heating temperature in second furnace body and the third furnace body, with the spheroidizing annealing step of carrying out the difference to the work piece, through servo motor, first cylinder pole, the second cylinder pole, the gear, thereby the running water operation of work piece spheroidizing annealing is realized in order to carry out the transmission to the work piece to the cooperation of chain and rectangular block, through hydraulic cylinder, first rectangle pole, the cooperation of second rectangle pole and thermal-insulated door is in order to close and insulate against heat to the rectangle through-hole, with the internal temperature of control different furnace, thereby realize the spheroidizing annealing operation of work piece streamline shape, and then shorten work piece spheroidizing annealing cycle, improve processing work piece spheroidizing annealing efficiency, therefore, the clothes.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is a left side sectional view of the present invention;

fig. 3 is a right side sectional view of the present invention;

fig. 4 is an enlarged view of the position a of the present invention.

In the figure: 1. the furnace comprises a base, 2, a first furnace body, 3, a second furnace body, 4, a third furnace body, 5, a sealing door, 6, a heating device, 7, a convection fan, 8, a cooling fan, 9, an atomization cooling device, 10, a second cylindrical rod, 11, a gear, 12, a chain, 13, a rectangular block, 14, a servo motor, 15, a first cylindrical rod, 16, a sliding groove, 17, a sliding block, 18, a heat insulation door, 19, a first rectangular rod, 20, a second rectangular rod, 21, a hydraulic oil cylinder, 22, a through hole, 23, a control console, 24 and a rectangular through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a spheroidizing annealing furnace with high spheroidizing efficiency comprises a base 1, a console 23 is connected with the left side of the top end of the base 1 through screws, a first furnace body 2, a second furnace body 3 and a third furnace body 4 are sequentially welded at the top end of the base 1 from left to right, high-temperature thermal insulation materials are arranged on the inner walls of the first furnace body 2, the second furnace body 3 and the third furnace body 4, the outer walls of the first furnace body 2, the second furnace body 3 and the third furnace body 4 are sequentially welded, a sealing door 5 is connected with an opening at the top end of the first furnace body 2 and an opening at the bottom end of the right side of the third furnace body 4 through screws, the inner cavities of the first furnace body 2, the second furnace body 3 and the third furnace body 4 can keep high-temperature and high-pressure environments through the sealing door 5, workpieces are spheroidizing annealed, a heating device 6 and a convection fan 7 are respectively connected with the left end and the right end of the rear side of the inner cavities of the first furnace, the model of the heating device 6 is RXL1-1, the heating device is connected with an external power supply, the external power supply is 380V alternating current, the heating device 6 is controlled by a control console 23, the model of the convection fan 7 is HTFC-11, the external power supply is 380V alternating current, the convection fan 7 is controlled by the control console 23, the central positions of the front side and the rear side of the inner cavity of the second furnace body 3 and the third furnace body 4 are respectively embedded with a cooling fan 8, the cooling fan 8 is electrically connected with the control console 23, the model of the cooling fan 8 is GFDD470-150 and is connected with the external power supply, the external power supply is 380V alternating current, the cooling fan 8 is controlled by the control console 23, the top end of the inner cavity of the third furnace body 4 is in screwed connection with an atomization cooling device 9, the atomization cooling device 9 is electrically connected with the control console 23, the atomization cooling device 9 is BO-PW-, and is connected with an external power supply, the external power supply is 380V alternating current, the atomization cooling device 9 is controlled by a control console 23, workpieces in the third furnace body 4 can be cooled through the atomization cooling device 9 and a cooling fan 8, the top end of the atomization cooling device 9 extends out of the upper surface of the third furnace body 4, rectangular through holes 24 with communicated inner cavities are respectively arranged at the bottom ends of contact surfaces of the first furnace body 2, the second furnace body 3 and the third furnace body 4, the left lower corners of the front side and the rear side of the inner cavity of the first furnace body 2 are respectively in interference fit with an outer ring of a bearing, the inner ring of the bearing is in interference fit with a second cylindrical rod 10, the right lower corner of the rear side of the inner cavity of the third furnace body 4 is in screw connection with a servo motor 14, the servo motor 14 is electrically connected with the control console 23, the model of the servo motor 14 is MR-J2S-10A and is connected with the external power supply, the, the right lower corner of the front side of the inner cavity of the third furnace body 4 is in interference fit with the position corresponding to the servo motor 14, the outer ring of the bearing is in interference fit with one end of a first cylindrical rod 15, the other end of the first cylindrical rod 15 is locked with the output end of the servo motor 14 through a coupler, gears 11 are in key connection with the front side and the rear side of the outer walls of the second cylindrical rod 10 and the first cylindrical rod 15, the servo motor 14 drives the first cylindrical rod 15 to rotate, so that the gears 11 drive a chain 12 to move towards the right side, and therefore workpieces are driven to sequentially enter the first furnace body 2, the second furnace body 3 and the third furnace body 4, the chain 12 is connected with the outer wall of the gears 11, the chain 12 penetrates through the inner cavity of the rectangular through hole 24, a rectangular block 13 is sequentially screwed to the right side of the outer side of the chain 12, the second cylindrical rod 10, the first cylindrical rod 15, the gears 11, the chain 12 and the, the left sides of the front end and the rear end of the inner cavities of the second furnace body 3 and the third furnace body 4 are respectively welded with a sliding chute 16, the bottom end of the inner cavity of the sliding chute 16 is inserted with a sliding block 17, the inner side of the sliding block 17 is welded with a heat insulation door 18, the front side and the rear side of the right bottom end of the heat insulation door 18 are respectively provided with a through hole 22, the top end of the right side of the heat insulation door 18 is welded with a first rectangular rod 19, the top ends of the two first rectangular rods 19 respectively extend out of the upper surfaces of the second furnace body 3 and the third furnace body 4 and are welded with a second rectangular rod 20, the top end of the second furnace body 3 is in screw connection with one end of a hydraulic oil cylinder 21, the hydraulic oil cylinder 21 can drive the second rectangular rod 20 to extend or shorten, the heat insulation door 18 is driven to ascend through the first rectangular rod 19, the other end of the hydraulic oil cylinder 21 is in screw connection with the center position, the hydraulic pump is connected with an external power supply which is 380V alternating current, and the hydraulic oil cylinder 21 is controlled by the console 23.

Preferably, the distance between the front and rear chains 12 is smaller than the width of the cavity of the rectangular through hole 24, so that the workpiece can be placed on the front and rear rectangular blocks 13 and can pass through the cavity of the rectangular through hole 24.

Preferably, the sectional area of the heat insulating door 18 is rectangular, and the sectional area of the heat insulating door 18 is larger than the area of the rectangular through hole 24, so that the heat insulating door 18 can close the rectangular through hole 24 to isolate the heat transfer in the first furnace body 2, the second furnace body 3 and the third furnace body 4.

Preferably, the sliding block 17 is in a dovetail shape, and the sliding block 17 is inserted into the inner cavity of the sliding groove 16, so that the sliding block 17 slides up and down in the inner cavity of the sliding groove 16 and limits the heat insulation door 18.

Preferably, the height of the inner cavity of the through hole 22 is larger than the distance between the upper surface and the lower surface of the chain 12, so that the chain 12 can pass through the heat-insulating door 18 through the through hole 22 and does not collide with the heat-insulating door 18 when the heat-insulating door 18 moves up and down.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When the furnace is used, a worker opens the sealing door 5 above the first furnace body 2, hangs the workpiece onto the rectangular block 13, starts the heating device 6 and the convection fan 7 through the control console 23 to heat the inner cavities of the first furnace body 2 and the second furnace body 3, keeps the workpiece temperature of the inner cavity of the first furnace body 2 at Ac1+ 20-40 ℃ for a certain heating time, controls the hydraulic oil cylinder 21 to extend through the control console 23, enables the second rectangular rod 20 to drive the heat insulation door 18 to rise through the first rectangular rod 19, and limits the heat insulation door 18 by the slide block 17 sliding upwards in the inner cavity of the sliding chute 16, controls the servo motor 14 to start through the control console 23, enables the servo motor 14 to drive the gear 11 to rotate clockwise through the first cylindrical rod 15, and limits the chain 12 through the gear 11 on the second cylindrical rod 10 on the left side, so that the chain 12 drives the workpiece to pass through the rectangular through hole 24 and move to the right side into the second furnace body 3, after the workpieces enter the second furnace body 3, a worker can put the next batch of workpieces into the first furnace body 2 for spheroidizing annealing heating operation, and control the hydraulic oil cylinder 21 to shorten so that the two heat insulation doors 18 close the rectangular through holes 24, thereby isolating heat transfer in the first furnace body 2, the second furnace body 3 and the third furnace body 4, and stopping rotation of the servo motor 14, the worker starts the cooling fan 8 in the second furnace body 3 through the console 23, so that the temperature of the second furnace body 3 is controlled at Ac1 ℃ to anneal and preserve heat for the workpieces, after the workpieces are preserved for a period of time, the hydraulic oil cylinder 21 is stretched again to open the rectangular through hole 24, the servo motor 14 is started again to drive the workpieces to move into the third furnace body 4, the console 23 controls the servo motor 14 to stop rotating and starts the atomizing and cooling device 9 and the cooling fan 8 in the third furnace body 4 to cool the workpieces, the workpiece is taken out by opening the sealing door 5 on the right side of the third furnace body 4, so that the streamline spheroidizing annealing operation of the workpiece is realized, the spheroidizing annealing period of the workpiece is shortened, the spheroidizing efficiency of the processed workpiece is improved, and the practicability is high.

In the description of the present invention, it is to be understood that the terms "top end", "bottom end", "one end", "front side", "rear side", "other end", "upper", "lower", "outer", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated; also, unless expressly stated or limited otherwise, the terms "snap" and "pivot" and "snap" and "weld" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

1. A spheroidizing annealing furnace with high spheroidizing efficiency comprises a base (1), and is characterized in that: the furnace body is characterized in that a console (23) is connected to the left side of the top end of the base (1) through screws, a first furnace body (2), a second furnace body (3) and a third furnace body (4) are sequentially welded to the top end of the base (1) from left to right, outer walls of the first furnace body (2), the second furnace body (3) and the third furnace body (4) are sequentially welded, a sealing door (5) is connected to an opening at the top end of the first furnace body (2) and an opening at the bottom end of the right side of the third furnace body (4) through screws, a heating device (6) and a convection fan (7) are respectively connected to the left end and the right end of the rear side of the inner cavity of the first furnace body (2) and the rear side of the second furnace body (3) through screws, the heating device (6) and the convection fan (7) are electrically connected with the console (23), and cooling fans (8) are embedded in the central positions of the front, cooling fan (8) and control cabinet (23) electric connection, the inner chamber top screw connection of third furnace body (4) has atomizing heat sink (9), atomizing heat sink (9) and control cabinet (23) electric connection, the upper surface of third furnace body (4) is extended on the top of atomizing heat sink (9), the communicating rectangle through-hole of inner chamber (24) has all been seted up to the contact surface bottom of first furnace body (2), second furnace body (3) and third furnace body (4), the equal interference fit in both sides lower left corner has the outer loop of bearing around the inner chamber of first furnace body (2), and the inner ring interference fit of bearing has second cylinder pole (10), the inner chamber rear side lower right corner screw connection of third furnace body (4) has servo motor (14), servo motor (14) and control cabinet (23) electric connection, the inner chamber front side lower right corner of third furnace body (4) has bearing interference fit with servo motor (14) corresponding position The outer ring of the bearing, the inner ring of the bearing is in interference fit with one end of a first cylindrical rod (15), the other end of the first cylindrical rod (15) is locked with the output end of a servo motor (14) through a coupler, gears (11) are connected with the front side and the rear side of the outer wall of a second cylindrical rod (10) and the first cylindrical rod (15) in a key mode, a chain (12) is connected with the outer wall chain of the gears (11), the chain (12) penetrates through the inner cavity of a rectangular through hole (24), rectangular blocks (13) are sequentially connected with the outer side of the chain (12) from left to right in a screw mode, sliding grooves (16) are welded on the left sides of the front end and the rear end of the inner cavity of the second furnace body (3) and the inner cavity of the third furnace body (4), a sliding block (17) is inserted into the bottom end of the inner cavity of the sliding grooves (16), a heat insulation door (18) is welded on the inner, the furnace body is characterized in that a first rectangular rod (19) is welded at the top end of the right side of the heat insulation door (18), two first rectangular rods (19) extend out of the upper surfaces of the second furnace body (3) and the third furnace body (4) respectively, and are welded with second rectangular rods (20), the top end of the second furnace body (3) is in screw connection with one end of a hydraulic oil cylinder (21), the other end of the hydraulic oil cylinder (21) is in screw connection with the center of the bottom end of the second rectangular rod (20), and the hydraulic oil cylinder (21) is electrically connected with a control console (23).

2. The spheroidizing annealing furnace of high spheroidizing efficiency according to claim 1, characterized in that: the distance between the two chains (12) is smaller than the width of the inner cavity of the rectangular through hole (24).

3. The spheroidizing annealing furnace of high spheroidizing efficiency according to claim 1, characterized in that: the section of the heat insulation door (18) is rectangular, and the area of the section of the heat insulation door (18) is larger than that of the rectangular through hole (24).

4. The spheroidizing annealing furnace of high spheroidizing efficiency according to claim 1, characterized in that: the slider (17) is in a dovetail shape, and the slider (17) is inserted into the inner cavity of the sliding groove (16).

5. The spheroidizing annealing furnace of high spheroidizing efficiency according to claim 1, characterized in that: the height of the inner cavity of the through hole (22) is larger than the distance between the upper surface and the lower surface of the chain (12).