CN110860682A

CN110860682A - Lifting mechanism for pouring pig iron casting

Info

Publication number: CN110860682A
Application number: CN201911182895.4A
Authority: CN
Inventors: 张勇
Original assignee: Fukun Foundry Hanshan County Anhui Province
Current assignee: Fukun Foundry Hanshan County Anhui Province
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-03-06

Abstract

The invention discloses a lifting mechanism for pouring pig iron castings, which comprises a fixed support frame, wherein a transverse round rod of the fixed support frame is movably sleeved with a first take-up pulley, the lower part of a vertical square column of the fixed support frame is of a cavity structure and penetrates through a driving shaft, the driving shaft is connected with a motor, a worm wheel and a second take-up pulley, the second take-up pulley is wound on the first take-up pulley through a steel rope and is connected with an inverted F-shaped support rod, the inverted F-shaped support rod is fixedly connected with a positioning ring, the positioning ring is clamped outside an iron melting furnace body through an annular groove and an annular convex strip, the other side of the positioning ring; the bottom of the worm is in threaded fit with the semicircular thread groove, and one end of the worm is provided with a locking nut. The pulley stay cord structure and the worm and worm gear transmission structure are combined, so that the rising and the inclination of the molten iron furnace body are realized, and the pouring process of molten iron in the furnace body is greatly simplified; and through motor control, make the operative employee adjust suitable pouring condition more easily, make the process of pouring more standard standardization.

Description

Lifting mechanism for pouring pig iron casting

Technical Field

The invention relates to the technical field of casting of pig iron castings, in particular to a lifting mechanism for casting of pig iron castings.

Background

In the sand casting process of pig iron castings, molten iron is often poured into a mold, and the final quality of the castings can be affected by the pouring angle, the flow rate of the molten iron and the pouring mode. And many times, the hoisting device of fuse-element stove is comparatively inconvenient, leads to the process of pouring to be difficult to control, can't form standard pouring technology, is unfavorable for the casting quality of pig iron foundry goods, awaits urgent need the improvement.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a lifting mechanism for pouring a pig iron casting.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lifting mechanism for pouring pig iron castings comprises a fixed support frame, wherein the fixed support frame is an inverted L-shaped rod consisting of a transverse round rod and a vertical square column, a first take-up pulley is movably sleeved outside the transverse round rod of the fixed support frame, the lower part of the vertical square column of the fixed support frame is of a cavity structure and penetrates through a driving shaft, a worm wheel is fixedly sleeved on the part, extending into the vertical square column, of the driving shaft through a flat key, a motor is connected with one end of the driving shaft, the other end of the driving shaft is fixedly sleeved with a second take-up pulley through the flat key, a steel rope is fixedly connected to the surface of the second take-up pulley, one end, far away from the second take-up pulley, of the steel rope is wound on the first take-up pulley, one end, far away from the second take-up pulley, of the steel rope is connected with an inverted F-shaped support rod, two transverse rods of the inverted F-, the outer wall of the iron melting furnace body is provided with an annular convex strip clamped with the annular groove, one side of the positioning ring away from the inverted F-shaped supporting rod is fixedly connected with the supporting rod, and the bottom end of the supporting rod is connected with a worm through a hinge;

one end of the worm, which is far away from the hinge, penetrates through a cavity structure at the lower part of the vertical column of the fixed support frame, a semicircular thread groove in threaded fit with the worm is formed in the bottom of the cavity structure, the top of the worm is in meshed connection with the worm wheel, and a locking nut is arranged at one end of the worm, which is far away from the hinge;

the iron melting furnace body is positioned above the worm.

Preferably, lubricating oil is soaked in gaps of the steel wire bundles of the steel wire rope, so that the steel wire rope is improved to be coiled or uncoiled on the second take-up pulley, and the sliding of the steel wire rope on the first take-up pulley is also improved, and the inverted F-shaped support rod is smoothly pulled or loosened, so that the iron melting furnace body is lifted or lowered; on the other hand, when the driving shaft drives the worm wheel to rotate, the length of the worm rod can be contracted, the worm rod pulls or loosens the supporting rod through the hinge, so that the supporting rod is inclined, the iron melting furnace body is inclined, and when the iron melting furnace body reaches a certain height and an inclination angle, the motor is turned off, so that molten iron smoothly flows into the mold.

Preferably, the motor is a positive and negative rotation ultra-low speed motor, the rotating speed of the motor is 1-2r/min, and the height and the inclination angle of the iron melting furnace body are slowly changed so as to adapt to different casting process requirements.

Preferably, the iron melting furnace body is specifically iron melting electric furnace equipment with an intermediate frequency power supply cabinet, a compensation capacitor, a furnace body, a water-cooling cable and a speed reducer, wherein a heating capacitor of the iron melting electric furnace equipment is arranged at the bottom of the iron melting furnace body, the iron melting furnace body can realize electric heating, and the casting process of the pig iron casting is greatly simplified by matching with the lifting mechanism.

Compared with the prior art, the invention has the beneficial effects that:

the invention uses the pulley rope pulling structure to lift or lower the iron melting furnace body; according to the invention, through the worm and worm gear transmission structure, when the driving shaft drives the worm gear to rotate, the length of the worm gear can be contracted, the worm pulls or loosens the supporting rod through the hinge to incline the supporting rod, so that the iron melting furnace body is inclined, and when the iron melting furnace body reaches a certain height and inclination angle, the motor is turned off, so that molten iron flows into the mold smoothly. The invention has the innovation points that the pulley pull rope structure and the worm and worm gear transmission structure are combined, the rising and the inclination of the iron melting furnace body are realized simultaneously, and the pouring process of molten iron in the furnace body is greatly simplified; and through motor control, can make the operator more easy adjustment suitable pouring condition control, make the process of pouring more standard standardization, have great realistic meaning.

Drawings

FIG. 1 is a schematic structural diagram of a lifting mechanism for casting pig iron according to the present invention;

FIG. 2 is a schematic view of a worm gear transmission structure of a lifting mechanism for casting pig iron according to the present invention;

FIG. 3 is a view showing the external appearance of a molten iron furnace body of a lifting mechanism for casting pig iron according to the present invention;

FIG. 4 is a schematic view of the internal structure of the annular groove of the lifting mechanism for casting pig iron according to the present invention.

In the figure: the device comprises a fixed support frame 1, a first take-up pulley 2, a driving shaft 3, a worm wheel 4, a motor 5, a second take-up pulley 6, a steel rope 7, an inverted F-shaped support rod 8, a positioning ring 9, a molten iron furnace body 10, an annular groove 11, an annular convex strip 12, a support rod 13, a worm 14, a semicircular thread groove 15, a locking nut 16 and a hinge 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a lifting mechanism for casting pig iron comprises a fixed support frame 1, the fixed support frame 1 is an inverted L-shaped rod composed of a horizontal round rod and a vertical square column, a first take-up pulley 2 is movably sleeved outside the horizontal round rod of the fixed support frame 1, the lower part of the vertical square column of the fixed support frame 1 is in a cavity structure and is penetrated and connected with a driving shaft 3, a worm wheel 4 is fixedly sleeved and connected with the part of the driving shaft 3 extending into the vertical square column through a flat key, one end of the driving shaft 3 is connected with a motor 5, the other end of the driving shaft 3 is fixedly sleeved and connected with a second take-up pulley 6 through a flat key, a steel rope 7 is fixedly connected with the surface of the second take-up pulley 6, one end of the steel rope 7 far away from the second take-up pulley 6 is wound and connected with the first take-up pulley 2, one end of the steel rope 7 far away from the second take-up, the positioning ring 9 is clamped on the outer wall of the molten iron furnace body 10, an annular groove 11 with a rectangular cross section is arranged on the inner arc surface of the positioning ring 9, an annular convex strip 12 clamped with the annular groove 11 is arranged on the outer wall of the molten iron furnace body 10, a supporting rod 13 is fixedly connected to one side of the positioning ring 9, which is far away from the inverted F-shaped supporting rod 8, and the bottom end of the supporting rod 13 is connected with a worm 14 through a hinge 17; one end of the worm 14, which is far away from the hinge 17, penetrates through a cavity structure at the lower part of the vertical square column of the fixed support frame 1, the bottom of the cavity structure is provided with a semicircular thread groove 15 in threaded fit with the worm 14, the top of the worm 14 is meshed and connected with the worm wheel 4, and one end of the worm 14, which is far away from the hinge 17, is provided with a locking nut 16; the iron-melting furnace body 10 is located above the worm 14.

Referring to fig. 1, lubricating oil is soaked in gaps of the wire bundles of the steel rope 7 to improve coiling or uncoiling of the steel rope 7 on the second take-up pulley 6 and improve sliding of the steel rope 7 on the first take-up pulley 2, so that the inverted F-shaped support rod 8 is smoothly pulled or loosened, and the iron melting furnace body 10 is lifted or lowered; on the other hand, when the driving shaft 3 drives the worm wheel 4 to rotate, the length of the worm 14 can be contracted, the worm 14 pulls or loosens the support rod 13 through the hinge 17, so that the support rod 13 is inclined, the iron melting furnace body 10 is inclined, and when the iron melting furnace body 10 reaches a certain height and an inclination angle, the motor 5 is turned off, so that molten iron smoothly flows into the mold.

Referring to fig. 1, the motor 5 is a positive and negative rotation ultra-low speed motor, the rotation speed is 1-2r/min, and the height and the inclination angle of the iron melting furnace body 10 are slowly changed to adapt to different casting process requirements.

Referring to fig. 1, the iron melting furnace body 10 is specifically iron melting electric furnace equipment with a medium frequency power supply cabinet, a compensation capacitor, two furnace bodies, a water cooling cable and a speed reducer, wherein a heating capacitor is arranged at the bottom of the iron melting furnace body 10, the iron melting furnace body 10 can realize electric heating, and the casting process of pig iron castings is greatly simplified by matching with the lifting mechanism of the invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The lifting mechanism for pouring the pig iron casting comprises a fixed support frame (1) and is characterized in that the fixed support frame (1) is an inverted L-shaped rod composed of a transverse round rod and a vertical square column, a first take-up pulley (2) is movably sleeved outside the transverse round rod of the fixed support frame (1), the lower portion of the vertical square column of the fixed support frame (1) is of a cavity structure and is connected with a driving shaft (3) in a penetrating mode, the part, extending into the vertical square column, of the driving shaft (3) is fixedly sleeved with a worm wheel (4) through a flat key, one end of the driving shaft (3) is connected with a motor (5), the other end of the driving shaft (3) is fixedly sleeved with a second take-up pulley (6) through the flat key, a steel rope (7) is fixedly connected to the surface of the second take-up pulley (6), and one end, far away from the second take-up pulley (6), of the steel rope (7), one end, far away from the second take-up pulley (6), of the steel rope (7) is connected with an inverted F-shaped supporting rod (8), two cross rods of the inverted F-shaped supporting rod (8) are fixedly connected with positioning rings (9), the positioning rings (9) are clamped on the outer wall of a molten iron furnace body (10), the inner arc surfaces of the positioning rings (9) are provided with annular grooves (11) with rectangular cross sections, the outer wall of the molten iron furnace body (10) is provided with annular convex strips (12) clamped with the annular grooves (11), one side, far away from the inverted F-shaped supporting rod (8), of each positioning ring (9) is fixedly connected with a supporting rod (13), and the bottom end of each supporting rod (13) is connected with a worm (14) through a hinge (;

one end, far away from the hinge (17), of the worm (14) penetrates through a cavity structure at the lower part of a vertical square column of the fixed support frame (1), a semicircular thread groove (15) in threaded fit with the worm (14) is formed in the bottom of the cavity structure, the top of the worm (14) is meshed with the worm wheel (4), and a locking nut (16) is arranged at one end, far away from the hinge (17), of the worm (14);

the iron melting furnace body (10) is positioned above the worm (14).

2. A pig iron casting pouring lifting mechanism as claimed in claim 1, characterized in that the gaps of the wire bundles of the steel cables (7) are impregnated with lubricating oil.

3. The lifting mechanism for pouring cast iron castings according to claim 1, characterized in that the motor (5) is a positive and negative rotation ultra-low speed motor with a rotation speed of 1-2 r/min.

4. The lifting mechanism for pouring the pig iron casting as claimed in claim 1, wherein the pig iron furnace body (10) is an electric smelting furnace device with a medium frequency power cabinet, a compensation capacitor, two furnace bodies, a water-cooled cable and a speed reducer, and a heating capacitor of the electric smelting furnace device is arranged at the bottom of the pig iron furnace body (10).