CN212339934U - Vacuum degree adjusting device of vacuum smelting furnace - Google Patents

Abstract

The utility model relates to a vacuum melting furnace technical field, and disclose a vacuum degree adjusting device of vacuum melting furnace, including vacuum melting furnace, vacuum pump and air pump, vacuum melting furnace's the fixed vacuum gauge that is provided with in top, both ends are fixed respectively and are provided with first diaphragm and second diaphragm about vacuum melting furnace's the right side, the fixed support frame that is provided with in bottom of first diaphragm, the bottom fixed connection of vacuum pump and support frame, the top fixed connection of air pump and second diaphragm, the left side of air pump and vacuum pump is all fixed and is provided with first trachea, two tracheal left sides are fixed jointly and are provided with three way connection, three way connection's the fixed second trachea that is provided with in left side, the tracheal left side of second and vacuum melting furnace's right side fixed connection. The utility model discloses can remotely carry out regulating switch to the ooff valve that vacuum melting stove vacuum was adjusted to carry out effectual regulation to the vacuum of smelting stove inside.

Description

Vacuum degree adjusting device of vacuum smelting furnace

Technical Field

The utility model relates to a vacuum melting furnace technical field especially relates to a vacuum adjusting device of vacuum melting furnace.

Background

The vacuum melting furnace is mainly used for melting metal materials such as stainless steel, nickel-based alloy, copper, alloy steel and the like under the condition of vacuum or protective atmosphere, and can also be used for carrying out vacuum refining treatment and precision casting on alloy steel.

The vacuum degree of the interior of the existing vacuum smelting furnace needs to be adjusted when the vacuum smelting furnace is used for smelting, the general vacuum degree adjustment is that the vacuum degree is changed by ventilating and exhausting air into the furnace, but the temperature of the outer side of the general smelting furnace is higher, certain danger exists when an air valve switch is manually adjusted, and manual screwing of the air valve switch is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the vacuum degree adjusting device of the vacuum smelting furnace is dangerous to scald and is troublesome to solve the problem that the manual work is convenient for ventilate or exhaust to adjust the vacuum degree in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vacuum degree adjusting device of a vacuum melting furnace, which comprises a vacuum melting furnace, a vacuum pump and an air pump, a vacuum gauge is fixedly arranged at the top of the vacuum melting furnace, a first transverse plate and a second transverse plate are respectively and fixedly arranged at the upper end and the lower end of the right side of the vacuum melting furnace, the bottom of the first transverse plate is fixedly provided with a support frame, the vacuum pump is fixedly connected with the bottom of the support frame, the air pump is fixedly connected with the top of the second transverse plate, the left sides of the air pump and the vacuum pump are both fixedly provided with first air pipes, the left sides of the two first air pipes are jointly and fixedly provided with a three-way joint, a second air pipe is fixedly arranged on the left side of the three-way joint, the left side of the second air pipe is fixedly connected with the right side of the vacuum melting furnace, the pipe wall of the second air pipe is fixedly provided with a switch valve, a screwing return mechanism is arranged below the switch valve, and a pulling mechanism is arranged below the second transverse plate.

Preferably, twist and move return mechanism and include bull stick and gear, the bottom fixedly connected with of ooff valve links the board, the top of bull stick and the bottom fixed connection who links the board, and the lower extreme passes through rolling bearing and second diaphragm rotation and is connected to extend to second diaphragm below, gear and the pole wall upper end fixed connection of bull stick, the right side of vacuum melting furnace just is located the fixed horizontal pole that is provided with in rear side of bull stick, the pole wall slip of horizontal pole has cup jointed the slider, the top of slider is fixed and is provided with the rack, rack and gear engagement, the pole wall left end cover of horizontal pole has connect the spring, the both ends of spring are close to one side fixed connection with slider and vacuum melting furnace respectively.

Preferably, the pulling mechanism includes the reel, the reel is fixed cup jointing with the pole wall of bull stick and the below that is located the second diaphragm, the wheel wall winding of reel is provided with the stay cord, vacuum melting furnace's left side lower extreme fixedly connected with fixed block, logical groove has been seted up in the fixed block, the rope wall of stay cord passes logical groove and extends to the outside.

Preferably, a pull ring is fixedly arranged at the left end of the pull rope and on the left side of the fixing block.

Preferably, the lower end of the front side of the vacuum smelting furnace is fixedly connected with two groups of symmetrically arranged pulleys, and the pulley walls of the pulleys are in contact connection with the rope wall of the pull rope.

Compared with the prior art, the utility model provides a vacuum adjusting device of vacuum melting furnace possesses following beneficial effect:

1. this vacuum degree adjusting device of vacuum melting furnace can adjust the vacuum degree in the vacuum melting furnace through vacuum pump, air pump, first trachea, three way connection and second trachea and the ooff valve that is equipped with.

2. This vacuum degree adjusting device of vacuum melting furnace moves return mechanism and ooff valve through the twisting that is equipped with, can open the ooff valve and carry out vacuum regulation and make the ooff valve independently reverse screw up after and close, improves the ooff valve switch convenience.

3. This vacuum degree adjusting device of vacuum melting furnace through pulling mechanism, pulley and the fixed block that is equipped with, can open the ooff valve remotely and the pipe wall, reduces the contact with vacuum melting furnace, avoids scalding.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses convenient operation can carry out regulating switch to the ooff valve through the remote vacuum smelting furnace of keeping away from to carry out effectual regulation to the vacuum of smelting furnace inside, prevent the emergence of dangerous accident.

Drawings

Fig. 1 is a schematic structural view of a vacuum degree adjusting device of a vacuum melting furnace according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is an enlarged view of a portion C of fig. 1.

In the figure: the device comprises a vacuum melting furnace 1, a vacuum pump 2, an air pump 3, a vacuum gauge 4, a first transverse plate 5, a second transverse plate 6, a support frame 7, a first air pipe 8, a three-way joint 9, a second air pipe 10, a switch valve 11, a rotating rod 12, a gear 13, a connecting plate 14, a cross rod 15, a sliding block 16, a rack 17, a spring 18, a reel 19, a pull rope 20, a fixed block 21, a pull ring 22 and a pulley 23.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a vacuum degree adjusting device of a vacuum melting furnace comprises a vacuum melting furnace 1, a vacuum pump 2 and an air pump 3, wherein a vacuum gauge 4 is fixedly arranged at the top of the vacuum melting furnace 1, the vacuum gauge 4 is arranged for accurately observing the vacuum degree in the vacuum melting furnace 1, a first transverse plate 5 and a second transverse plate 6 are respectively and fixedly arranged at the upper end and the lower end of the right side of the vacuum melting furnace 1, a support frame 7 is fixedly arranged at the bottom of the first transverse plate 5, the vacuum pump 2 is fixedly connected with the bottom of the support frame 7, the air pump 3 is fixedly connected with the top of the second transverse plate 6, the first transverse plate 5, the second transverse plate 6 and the support frame 7 are arranged for fixing the vacuum pump 2 and the air pump 3, first air pipes 8 are fixedly arranged at the left sides of the air pump 3 and the vacuum pump 2, a three-way joint 9 is fixedly arranged at the, set up three way connection 9 and reduce tracheal use amount, the left side of second trachea 10 and vacuum melting furnace 1's right side fixed connection, the fixed ooff valve 11 that is provided with of pipe wall of second trachea 10, ooff valve 11's below is provided with twists and moves return mechanism, and the below of second diaphragm 6 is provided with pulling mechanism.

Twist and move return mechanism and include bull stick 12 and gear 13, the bottom fixedly connected with of ooff valve 11 links board 14, the top of bull stick 12 and the bottom fixed connection who links board 14, and the lower extreme passes through rolling bearing and second diaphragm 6 and rotates to be connected, and extend to second diaphragm 6 below, it increases the fore-and-aft stability of turning rod 12 to set up rolling bearing, gear and the pole wall upper end fixed connection of bull stick 12, the right side of vacuum melting furnace 1 just is located the fixed horizontal pole 15 that is provided with in rear side of bull stick 12, the pole wall slip of horizontal pole 15 has cup jointed slider 16, horizontal pole 15 is square pole, the fixed rack 17 that is provided with in top of slider 16, rack 17 and gear 13 meshing, the pole wall left end of horizontal pole 15 has cup jointed spring 18, the both ends of spring 18 are close to one side fixed connection with slider 16 and vacuum melting furnace 1 respectively.

Pulling mechanism includes reel 19, reel 19 and the pole wall of bull stick 12 and the below that is located second diaphragm 6 is fixed cup joints, reel 19's wheel wall winding is provided with stay cord 20, vacuum melting furnace 1's left side lower extreme fixedly connected with fixed block 21, logical groove has been seted up in the fixed block 21, the rope wall of stay cord 20 passes logical groove and extends to the outside, the left end of stay cord 20 and the fixed pull ring 22 that is provided with in left side that is located fixed block 21, it is convenient for stimulate stay cord 20 to set up pull ring 22, the pulley 23 that the two sets of symmetries of vacuum melting furnace 1's front side lower extreme fixedly connected with set up, set up the fixed block, logical groove and pulley carry on spacingly to the pulling of stay cord 20, the wheel wall of pulley.

In the utility model, when the operator adjusts the vacuum degree in the vacuum melting furnace 1, the air pump 3 or the vacuum pump 2 is opened to make the gas exchange and circulate between the first air pipe 8, the tee joint 9, the vacuum melting furnace 1 and the second air pipe 10, the pull ring 22 is pulled to pull the pull rope 20 in the fixed block 21 and the pulley 23 and drive the reel 19 to rotate, the reel 19 drives the rotating rod 12 and the gear 13 to rotate, so that the connecting plate 14 at the top of the rotating rod 12 drives the switch valve 11 to rotate and open, the gear 13 rotates and simultaneously drives the rack 17 engaged with the gear to move, the rack 17 moves to drive the slider 16 to move and stretch the spring 18, the switch valve 11 is opened to carry out gas exchange to adjust the vacuum degree, the vacuum degree is observed by observing the vacuum gauge 4, the pull ring 22 is loosened when reaching a proper position, so that the spring 18 returns to pull the slider 16 and the rack 17 to move reversely, the driving gear 13 and the rotary rod 12 rotate reversely, the rotary rod 12 drives the switch valve 11 to rotate the pipe wall reversely, and the pull rope 20 is wound and stored through the winding wheel 19.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A vacuum degree adjusting device of a vacuum smelting furnace comprises the vacuum smelting furnace (1), a vacuum pump (2) and an air pump (3), and is characterized in that a vacuum gauge (4) is fixedly arranged at the top of the vacuum smelting furnace (1), a first transverse plate (5) and a second transverse plate (6) are respectively and fixedly arranged at the upper end and the lower end of the right side of the vacuum smelting furnace (1), a support frame (7) is fixedly arranged at the bottom of the first transverse plate (5), the vacuum pump (2) is fixedly connected with the bottom of the support frame (7), the air pump (3) is fixedly connected with the top of the second transverse plate (6), first air pipes (8) are fixedly arranged at the left sides of the air pump (3) and the vacuum pump (2), a three-way joint (9) is fixedly arranged on the left sides of the two first air pipes (8) together, a second air pipe (10) is fixedly arranged on the left side of, the left side of second trachea (10) and the right side fixed connection of vacuum melting furnace (1), the pipe wall of second trachea (10) is fixed and is provided with ooff valve (11), the below of ooff valve (11) is provided with twists and moves return mechanism, the below of second diaphragm (6) is provided with pulling mechanism.

2. The vacuum degree adjusting device of the vacuum melting furnace according to claim 1, wherein the screwing return mechanism comprises a rotating rod (12) and a gear (13), the bottom of the switch valve (11) is fixedly connected with a connecting plate (14), the top of the rotating rod (12) is fixedly connected with the bottom of the connecting plate (14), the lower end of the rotating rod is rotatably connected with the second transverse plate (6) through a rotating bearing and extends to the lower part of the second transverse plate (6), the gear is fixedly connected with the upper end of the rod wall of the rotating rod (12), a cross rod (15) is fixedly arranged on the right side of the vacuum melting furnace (1) and positioned on the rear side of the rotating rod (12), the rod wall of the cross rod (15) is slidably sleeved with a sliding block (16), the top of the sliding block (16) is fixedly provided with a rack (17), the rack (17) is meshed with the gear (13), the left end of the rod wall of the cross rod (15) is sleeved with a spring (18), and two ends of the spring (18) are respectively fixedly connected with one side of the sliding block (16) close to the vacuum melting furnace (1).

3. The vacuum degree adjusting device of the vacuum melting furnace according to claim 1, wherein the pulling mechanism comprises a reel (19), the reel (19) is fixedly sleeved with the rod wall of the rotating rod (12) and located below the second transverse plate (6), a pulling rope (20) is wound on the wheel wall of the reel (19), a fixed block (21) is fixedly connected to the lower end of the left side of the vacuum melting furnace (1), a through groove is formed in the fixed block (21), and the rope wall of the pulling rope (20) penetrates through the through groove and extends to the outside.

4. The vacuum degree adjusting device of a vacuum melting furnace according to claim 3, characterized in that a pull ring (22) is fixedly arranged at the left end of the pull rope (20) and at the left side of the fixed block (21).

5. The vacuum degree adjusting device of the vacuum melting furnace according to claim 1, characterized in that two sets of symmetrically arranged pulleys (23) are fixedly connected to the front lower end of the vacuum melting furnace (1), and the pulley walls of the pulleys (23) are in contact connection with the rope walls of the pull ropes (20).

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