CN219829479U

CN219829479U - Semi-automatic feeding device for vacuum smelting furnace

Info

Publication number: CN219829479U
Application number: CN202320731328.5U
Authority: CN
Inventors: 曹杰; 丁继明; 童双双; 王文平; 张强; 许飞; 刘志成; 李德平; 李孝龙; 黄波; 丁达哲; 万杰; 周家刚
Original assignee: DEC Dongfang Turbine Co Ltd
Current assignee: DEC Dongfang Turbine Co Ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-10-13
Anticipated expiration: 2033-04-06

Abstract

The utility model discloses a semiautomatic feeding device for a vacuum smelting furnace, which comprises a feeding bin, a motor mounting seat, a gear motor, a steel wire rope turntable fixedly arranged on an output shaft of the motor, and a grabbing part connected with the steel wire rope; the motor mounting seat is provided with a cavity for accommodating the rotation of the motor output shaft and the steel wire rope turntable; the bottom end of the motor mounting seat and the top end of the feeding bin are provided with through holes for the steel wire ropes to pass through; the feeding device further comprises a limiting mechanism, wherein the limiting mechanism comprises a teeterboard assembly arranged on the inner wall of the top end of the feeding bin, a trigger plate fixedly arranged on the steel wire rope and a proximity switch arranged in the feeding bin and electrically connected with the speed reducing motor; the teeterboard comprises a first contact end and a second contact end; when the trigger plate drives the first contact end to move upwards, the second contact end moves downwards and triggers the proximity switch, so that the gear motor is stopped. The utility model has the advantages of simple structure, convenient operation, good safety performance and stable and reliable working performance.

Description

Semi-automatic feeding device for vacuum smelting furnace

Technical Field

The utility model relates to the field of vacuum smelting furnace equipment, in particular to a semi-automatic feeding device for a vacuum smelting furnace.

Background

The vacuum smelting furnace is one of electric furnaces, and mainly comprises a charging chamber, a smelting chamber, a temperature measuring chamber, a mould shell chamber and the like; the main principle is that a specially-made crucible is placed in a magnetic induction coil of a smelting chamber in a vacuum environment, and electric energy is converted into magnetic energy by an output power supply to complete the process of heating and melting materials in the crucible. The vacuum smelting can protect molten metal from being polluted by gas substances such as oxygen in the atmosphere, separate substances with different boiling points, reduce the content of gas or other impurities in metal, and the like, realize the smelting process which cannot be carried out under the atmospheric pressure, and improve the quality of smelting metal and alloy. At present, the vacuum melting furnace is widely applied to the production of high-temperature alloy, hydrogen storage material, magnetic material and other functional materials, and is also widely applied to the high-precision industries such as aerospace, aviation, military industry, chemical industry and the like. The vacuum smelting furnace has the main characteristics of high heating speed, high continuous production rate of equipment, uniform alloy production components, less burning loss, high material utilization rate and the like.

The vacuum smelting furnace adopts a three-chamber structure, and the main body comprises a smelting chamber, a mould shell chamber, a charging chamber and the like, wherein the smelting chamber completes the process of heating and melting a metal base metal into liquid metal through an induction coil; setting different moulds according to smelting requirement to solidify metal liquid; the charging chamber is used for charging in the smelting process under the condition of not damaging the vacuum casting environment.

The charging of the vacuum smelting furnace completes the charging work in the smelting period through the charging chamber, and the traditional charging device adopts a mechanical transmission mode that a motor drives a chain wheel to rotate so as to drive an annular chain on the chain wheel, thereby realizing the lifting of materials and completing the transfer of the materials into the charging chamber. The Chinese patent literature discloses a vacuum smelting furnace feeding device (publication No. CN204100798U, publication No. 2015, no. 01 and No. 14), and the technology discloses a vacuum furnace, in particular to a vacuum smelting furnace feeding device, which comprises a feeding bin, a winch and a feeding barrel, wherein a feeding bin door is hinged with the feeding bin, the winch is arranged on the feeding bin door, the inside of the winch is composed of a motor, a shaft, a bearing, a coupling, a chain wheel, a chain and a lifting hook, the winch is connected with the winch through the lifting hook, and the feeding bin is connected with a smelting chamber through a valve; the smelting crucible is arranged in the smelting chamber and is in a coaxial position with the feeding bin, and the feeding bucket is driven by a motor of the winch to downwards pass through the valve to reach the inside of the smelting crucible and is naturally unhooked. In actual use, after the charging is completed, the charging barrel is required to be lifted by a winch; in the process of lifting the charging barrel by the winch, whether lifting is in place or not is observed at any time; when the loading drum is lifted to a proper position, the winding machine is stopped. Due to the complete control of the operator, if the operator is not aware and/or is operating improperly, the filling barrel will slip off the hook when lifted beyond the highest position.

Disclosure of Invention

The utility model aims at: aiming at the defects of the prior art, the feeding device for the vacuum melting furnace is simple in structure, convenient to operate, good in safety performance and stable and reliable in working performance.

The technical problems to be solved by the utility model are realized by the following technical scheme:

a semi-automatic feeding device for vacuum melting stove, its characterized in that: the device comprises a feeding bin, a motor mounting seat arranged at the top end of the feeding bin, a gear motor arranged at one side of the motor mounting seat, a steel wire rope turntable fixedly arranged on an output shaft of the motor, and a material grabbing component connected with the steel wire rope; the motor mounting seat is provided with a cavity for accommodating the rotation of the motor output shaft and the steel wire rope turntable; the bottom end of the motor mounting seat and the top end of the feeding bin are provided with through holes for the steel wire ropes to pass through;

the feeding device further comprises a limiting mechanism, wherein the limiting mechanism comprises a teeterboard assembly arranged on the inner wall of the top end of the feeding bin, a trigger plate fixedly arranged on the steel wire rope and a proximity switch arranged in the feeding bin and electrically connected with the speed reducing motor; the teeterboard assembly comprises a teeterboard base fixedly connected with the inner wall of the top end of the feeding bin and a teeterboard movably connected with the teeterboard base, and the teeterboard comprises a first contact end which is inclined downwards and corresponds to a trigger plate on a steel wire rope, and a second contact end which is inclined upwards and corresponds to a proximity switch; when the trigger plate drives the first contact end to move upwards, the second contact end moves downwards and triggers the proximity switch, so that the gear motor is stopped.

The wire rope turntables are two wire rope turntables fixedly arranged on the output shaft of the motor at intervals, and correspondingly, the number of the wire ropes is two; the steel wire rope is connected with the connector of the grabbing component, and the bottom of the connector is connected with the grabbing part.

The steel wire rope is matched with a guide wheel assembly arranged on the inner wall of the top end of the feeding bin and at the through hole; the axial direction of the guide wheel assembly is parallel to the axial direction of the motor output shaft.

The guide wheel assembly is two guide wheel assemblies which are oppositely arranged, the guide wheels of the two guide wheel assemblies are arranged at intervals, the guide grooves of the two guide wheels are oppositely arranged, and the guide grooves are in clearance fit with the steel wire rope.

The guide groove is a V-shaped guide groove.

The specified position on the steel wire ropes is fixedly provided with a trigger plate which is connected with the two steel wire ropes and matched with the first contact end of the teeterboard.

The first contact end of the seesaw is arranged between the two steel wire ropes and at the upper end of the trigger plate.

The trigger plate is a strip-shaped structure made of steel plates.

The grabbing part is a hook or a grabbing tool.

Compared with the prior art, the utility model has the beneficial effects that:

1. the feeding device also comprises a limiting mechanism, wherein the limiting mechanism comprises a teeterboard assembly arranged on the inner wall of the top end of the feeding bin, a trigger plate arranged on the steel wire rope and a proximity switch arranged in the feeding bin and electrically connected with the speed reducing motor; the teeterboard assembly comprises a teeterboard base fixedly connected with the inner wall of the top end of the feeding bin and a teeterboard movably connected with the teeterboard base, and the teeterboard comprises a first contact end which is inclined downwards and corresponds to a trigger plate on a steel wire rope, and a second contact end which is inclined upwards and corresponds to a proximity switch; when the trigger plate drives the first contact end to move upwards, the second contact end moves downwards and triggers the proximity switch, so that the gear motor is stopped. By arranging the limit mechanism with the proximity switch, the semi-automatic feeding process is realized, and by adopting the technology, the problem that in the process of lifting the feeding barrel/material rod, the lifting object is collided due to excessive lifting due to carelessness and/or improper operation of an operator is avoided, so that the material is scattered is solved, and the device has the advantages of simple structure, convenience in operation, good safety performance and stable and reliable working performance; meanwhile, by adopting the technology, the time for operating the lifting device manually by an operator can be reduced, and the working efficiency can be effectively improved.

2. The two steel wire rope turntables are fixedly arranged on the output shaft of the motor at intervals, and correspondingly, the number of the steel wire ropes is two; the wire rope is connected with the connector of grabbing the material part, and the bottom of the connector is connected with the grabbing part. The double steel wire ropes are adopted, so that the steel wire ropes can be effectively prevented from being broken suddenly, and the gripping apparatus and the material rod drop to cause safety accidents; meanwhile, compared with a single steel wire rope lifting mode, the double steel wire ropes can effectively prevent the gripping apparatus from freely rotating in the lifting and descending processes, and the feeding use of the vacuum melting furnace is affected.

3. The steel wire rope is matched with the guide wheel assembly arranged on the inner wall of the top end of the feeding bin and at the through hole; the axial direction of the guide wheel assembly is parallel to the axial direction of the motor output shaft; through setting up the leading wheel, limit wire rope in the guide groove, can effectively guarantee to grab material portion center and be on the reinforced storehouse central axis all the time.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a view in the A-A direction of FIG. 1;

reference numerals: reference numerals: 1-a feeding bin; 11-a through hole; 2-a motor mounting seat; 21-a speed reducing motor; 211-a motor output shaft; 22-a wire rope turntable; 221-a wire rope; 2211—a trigger plate; 23-chamber; 3-a material grabbing part; 31-a connector; 32-a material grabbing part; 4-teeterboard assembly; 41-a teeterboard base; 42-teeterboard; 421-a first contact terminal; 422-a second contact terminal; 5-a guide wheel assembly; 51-a guide wheel base; 52-a guide wheel; 521-guiding grooves; 6-proximity switch.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should be noted that the meaning of "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 and 2, a semiautomatic feeding device for a vacuum melting furnace comprises a feeding bin 1, a motor mounting seat 2 arranged at the top end of the feeding bin 1, a gear motor 21 arranged at one side of the motor mounting seat 2, a steel wire rope turntable 22 fixedly arranged on a motor output shaft 211, and a material grabbing part 3 connected with a steel wire rope 221; the motor mounting seat 2 is provided with a cavity 23 for accommodating the rotation of the motor output shaft 211 and the wire rope turntable 22; the bottom end of the motor mounting seat 2 and the top end of the feeding bin 1 are provided with through holes 11 for the steel wire ropes 221 to pass through; the feeding device further comprises a limiting mechanism, wherein the limiting mechanism comprises a teeterboard assembly 4 arranged on the inner wall of the top end of the feeding bin 1, a trigger plate 2211 fixedly arranged on the steel wire rope 221 and a proximity switch 6 arranged in the feeding bin 1 and electrically connected with the speed reducing motor 21; the teeterboard assembly 4 comprises a teeterboard base 41 fixedly connected with the inner wall of the top end of the feeding bin 1 and a teeterboard 42 movably connected with the teeterboard base 41, wherein the teeterboard 42 comprises a first contact end 421 which is inclined downwards and corresponds to a trigger plate 2211 on a steel wire rope 221 and a second contact end 422 which is inclined upwards and corresponds to the proximity switch 6; when the trigger plate 2211 drives the first contact end 421 to move upwards, the second contact end 422 moves downwards and triggers the proximity switch 6, so that the gear motor 21 stops. In actual use, the proximity switch 6 is a prior art, which may be one of the ohm-dragon E2B series. By arranging the limiting mechanism with the proximity switch 6, the semi-automatic feeding process is realized, and by adopting the technology, the problem that in the process of lifting the feeding barrel/material rod, the lifting object is collided due to excessive lifting due to carelessness and/or improper operation of an operator is avoided, so that the material is scattered is avoided, and the feeding device has the advantages of simple structure, convenience in operation, good safety performance and stable and reliable working performance; meanwhile, by adopting the technology, the time for operating the lifting device manually by an operator can be reduced, and the working efficiency can be effectively improved.

Specifically, the motor mount 2 is fixedly mounted on the top of the feeding bin 1, and the motor mount 2 includes at least a mounting hole for mounting the gear motor 21, a chamber 23 for accommodating rotation of the motor output shaft 211 and the wire rope turntable 22, and a through hole 11 for passing the wire rope 221. When in actual use, the motor mounting seat 2 is of a square structure with an opening at the lower part, and through holes 11 for the steel wire ropes 221 to pass through are formed in the bottom end of the motor mounting seat 2 and the top end of the feeding bin 1. The gear motor 21 is installed in one side of motor mount pad 2, and the front end of motor output shaft 211 is connected with the bearing of motor mount pad 2, and gear motor 21 still is equipped with motor mount pad 2 complex seal assembly. A wire rope turntable 22 is fixedly arranged on the motor output shaft 211; one end of the wire rope 221 of the wire rope turntable 22 extends into the charging bin 1 through the through hole 11 and is connected with a charging member. The wire rope turntables 22 are two wire rope turntables 22 fixedly arranged on the motor output shaft 211 at intervals, and correspondingly, two wire ropes 221 are arranged; the wire rope 221 is connected to the connector 31 of the gripping member 3, and the bottom of the connector 31 is connected to the gripping portion 32. In actual use, the gripping portion 32 is a hook or a gripper. The double steel wire ropes 221 are adopted, so that the steel wire ropes 221 can be effectively prevented from being broken suddenly, and the gripping apparatus and the material rod drop to cause safety accidents; meanwhile, compared with a single steel wire rope 221 lifting mode, the double steel wire ropes 221 can effectively prevent the grippers from freely rotating in the lifting and descending processes, and the feeding use of the vacuum melting furnace is affected.

As shown in fig. 1 and 2, the steel wire rope 221 is matched with the guide wheel assembly 5 arranged on the inner wall of the top end of the feeding bin 1 and at the through hole 11; the axial direction of the guide wheel 52 of the guide wheel assembly 5 is parallel to the axial direction of the motor output shaft 211. Specifically, the guide wheel assembly 5 further includes a guide wheel base 51 for mounting the guide wheel 52, the guide wheel base 51 being disposed at both sides of the through hole 11 in the axial direction of the motor output shaft 211, and the guide groove 521 of the guide wheel 52 being clearance-fitted with the wire rope 221 when the guide wheel 52 is mounted on the guide wheel base 51. The installed guide wheels 52 guide the wire rope 221 up and down and center limit.

In actual use, the guide wheel assemblies 5 are two guide wheel assemblies 5 which are oppositely arranged, the guide wheels 52 of the two guide wheel assemblies 5 are arranged at intervals, the two guide wheels 52 are provided with guide grooves 521 which are the same in number as the steel wires 221, and the guide grooves 521 are in clearance fit with the steel wires 221. The two guide wheels 52 limit the two steel wires 221 in the guide groove 521, so that no matter how many circles of steel wires 221 are wound by the steel wire turntable 21, the center of the grabbing portion 32 can be ensured to be always on the central axis of the feeding bin 1. In actual use, the guide groove 521 is a V-shaped guide groove 521.

As shown in fig. 1 and 2, in actual use, the seesaw base 41 of the limiting mechanism is disposed along the axial direction of the orientation wheel. The seesaw 42 has a plate-like structure. When the number of the steel wires 221 is two, a trigger plate 2211 which is used for connecting the two steel wires 221 and is matched with the first contact end 421 of the teeterboard 42 is fixedly arranged at a designated position on the steel wires 221. In actual use, trigger plate 2211 is mounted on wire 221 between the connection and the orienting wheel. The first contact end 421 of the seesaw 42 is disposed between the two wire ropes 221 at the upper end of the trigger plate 2211. The trigger plate 2211 is a strip-shaped structure made of steel plates.

The working principle of the utility model is as follows:

the switch is turned on, so that the gear motor 21 works to drive the two steel wire rope turntables 21 to rotate and wind the steel wire ropes 221, one ends of the two groups of steel wire ropes 221 are fixed on the reel, the other ends of the two groups of steel wire ropes 221 are fixed on the connector 31, and the gripping apparatus is installed on the connector 31, so that lifting of the gripping apparatus is realized. The guide wheel 52 is arranged at the top of the inner wall of the feeding bin 1, plays a role in guiding and positioning when the steel wire rope 221 is lifted, and ensures that the central axis position of the gripping apparatus is unchanged all the time when the steel wire rope turntable 21 winds the steel wire rope 221 and the gripping apparatus performs lifting movement. A trigger plate 2211 is installed on the wire rope 221 at a certain distance from the connector 31, and moves up and down along with the gripping apparatus, when the gripping apparatus moves up and down, the trigger plate 2211 contacts with the first contact end 421 of the teeterboard 42 to push the teeterboard 42 to rotate in a certain angle, so that the second contact end 422 triggers the proximity switch 6 to sense and identify, the gripping apparatus moves up and down, and the gear motor 21 stops rotating.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A semi-automatic feeding device for vacuum melting stove, its characterized in that: the device comprises a feeding bin, a motor mounting seat arranged at the top end of the feeding bin, a gear motor arranged at one side of the motor mounting seat, a steel wire rope turntable fixedly arranged on an output shaft of the motor, and a material grabbing component connected with the steel wire rope; the motor mounting seat is provided with a cavity for accommodating the rotation of the motor output shaft and the steel wire rope turntable; the bottom end of the motor mounting seat and the top end of the feeding bin are provided with through holes for the steel wire ropes to pass through;

2. A charging device for a vacuum melting furnace according to claim 1, characterized in that:

3. A charging device for a vacuum melting furnace according to claim 1 or 2, characterized in that: the steel wire rope is matched with a guide wheel assembly arranged on the inner wall of the top end of the feeding bin and at the through hole; the axial direction of the guide wheel assembly is parallel to the axial direction of the motor output shaft.

4. A charging device for a vacuum melting furnace according to claim 3, characterized in that: the guide wheel assemblies are two guide wheel assemblies which are oppositely arranged, the guide wheels of the two guide wheel assemblies are arranged at intervals, guide grooves which are the same as the steel wire ropes in number are formed in the two guide wheels, and the guide grooves are in clearance fit with the steel wire ropes.

5. A charging device for a vacuum melting furnace according to claim 4, wherein:

the guide groove is a V-shaped guide groove.

6. A charging device for a vacuum melting furnace according to claim 2, characterized in that: the specified position on the steel wire ropes is fixedly provided with a trigger plate which is connected with the two steel wire ropes and matched with the first contact end of the teeterboard.

7. A charging device for a vacuum melting furnace according to claim 6, wherein: the first contact end of the seesaw is arranged between the two steel wire ropes and at the upper end of the trigger plate.

8. A charging device for a vacuum melting furnace according to claim 1 or 6, characterized in that: the trigger plate is a strip-shaped structure made of steel plates.

9. A charging device for a vacuum melting furnace according to claim 2, characterized in that:

the grabbing part is a hook or a grabbing tool.