Stirring mechanism of vacuum melting furnace

Abstract

The utility model discloses a vacuum melting furnace stirring mechanism which comprises a stirring shaft, a stirring head is arranged at the bottom of the stirring shaft, a guide sleeve is sleeved outside the stirring shaft, an auxiliary mechanism is arranged on the guide sleeve, the auxiliary mechanism comprises balls, an oil storage groove is formed in the top of the guide sleeve, and a spherical groove is formed in the inner wall of the guide sleeve. The ball is embedded in an inner cavity of the spherical groove, a first sliding groove is formed in the inner wall of the spherical groove, and a second sliding groove, a fixing pipe, a connecting pipe and a hose are arranged on the inner wall of the oil storage groove. According to the stirring device, the balls, the oil storage tank, the fixing pipe, the connecting pipe, the hose, the first sliding groove and the second sliding groove are matched with one another, lubricating oil in the oil storage tank flows into the first sliding groove and the second sliding groove, so that the lubricating oil flows between the guide sleeve and the stirring shaft, and the stirring shaft stably rotates through the balls; and therefore, the operation of directly adding lubricating oil between the stirring shaft and the guide sleeve is facilitated, and the injection of the lubricating oil is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of vacuum melting furnace stirring mechanisms, in particular to a vacuum melting furnace stirring mechanism. Background Art

[0002] A vacuum melting furnace is usually a commonly used melting furnace body. The vacuum melting furnace has a wide range of uses. When the vacuum melting furnace is in use, a stirring mechanism is usually used to stir the materials.

[0003] Application No. 202020672553.2 mentions a mechanical stirring mechanism for a vacuum / atmosphere protection melting furnace, which is arranged above the melting furnace and includes a reduction motor, a fixed bracket, a stirring shaft, a stirring head, a vacuum bellows and a stirring shaft fixing seat. The fixed bracket is erected above the furnace roof platform of the melting furnace, and a reducer fixing plate for fixing the reduction motor is provided on the top of the fixed bracket. The upper end of the stirring shaft passes through the sleeved sealing device and is connected to the output shaft of the reduction motor through a coupling, the lower end of the stirring shaft passes through the stirring shaft fixing seat and is connected to the upper end of the stirring head, the bottom of the stirring shaft fixing seat is connected to the stirring shaft fixing cylinder fixed on the furnace cover of the melting furnace through a connecting flange, a guide sleeve is provided between the stirring shaft and the stirring shaft fixing seat, and the lower end of the stirring shaft passes through the guide sleeve and is connected to the upper end of the stirring head.

[0004] The stirring shaft is connected to the stirring head, and the stirring shaft drives the stirring head to rotate to stir the material. In order to increase the stability of the stirring shaft during stirring, a guide sleeve is used to guide the stirring shaft axially. However, the stirring shaft is in contact with the inner wall of the guide sleeve, and friction is generated between the stirring shaft and the guide sleeve when the stirring shaft rotates, and lubricating oil is added to the inside of the guide sleeve. However, after the stirring shaft is used many times, the lubricating oil will run out, and it is necessary to add the lubricating oil. Usually, the flange and other connectors need to be disassembled. This method is cumbersome to operate, and it is not convenient to directly add lubricating oil between the stirring shaft and the guide sleeve, which has certain limitations. Utility Model Content

[0005] The utility model aims to provide a stirring mechanism for a vacuum melting furnace to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a stirring mechanism for a vacuum melting furnace, comprising:

[0007] A stirring shaft, wherein a stirring head is arranged at the bottom of the stirring shaft, a first flange and a second flange are arranged on the outer wall of the stirring shaft, a fixing seat is arranged at the bottom of the second flange, a guide sleeve is arranged on the outer sleeve of the stirring shaft, and a fixing cylinder is fixedly connected to the bottom end of the second flange;

[0008] The guide sleeve is provided with an auxiliary mechanism for making the stirring shaft rotate smoothly, and the auxiliary mechanism includes:

[0009] A ball bearing, an oil storage groove is provided on the top of the guide sleeve, a ball-shaped groove is provided on the inner wall of the guide sleeve, the ball bearing is embedded in the inner cavity of the ball-shaped groove, a first slide groove is provided on the inner wall of the ball-shaped groove, the inner cavity of the first slide groove is communicated with the inner cavity of the oil storage groove, and a second slide groove is provided on the inner wall of the oil storage groove;

[0010] A fixed pipe, a connecting pipe and a hose, wherein the fixed pipe is located on the side of the guide sleeve, the connecting pipe is located on the side of the fixed pipe, and the hose is located outside the fixed cylinder, and the fixed pipe, the connecting pipe and the hose are used to input lubricating oil into the interior of the oil storage tank.

[0011] Preferably, an annular plate is slidably provided in the inner cavity of the oil storage tank, a load-bearing ring is fixedly connected to the top end of the annular plate, a fixing ring is embedded in the inner cavity of the first flange, an extrusion column is fixedly connected to the bottom end of the fixing ring, and one end of the extrusion column is fitted with the top end of the load-bearing ring.

[0012] Preferably, a circular groove is formed on the inner wall of the oil storage tank, the fixed tube is fixedly inserted and connected with the inner cavity of the circular groove, and the inner cavity of the fixed tube is connected with the inner cavity of the oil storage tank.

[0013] Preferably, a through groove is formed on the outer wall of the fixing tube, the connecting tube is slidably connected with the inner cavity of the through groove, a sealing tube is fixedly connected to the inner wall of the through groove, and the outer wall of the connecting tube fits with the inner wall of the sealing tube.

[0014] Preferably, one end of the connecting pipe is fixedly connected to a mounting pipe, an outer wall of the mounting pipe is threadedly inserted and connected to an inner cavity of the fixing pipe, and one end of the connecting pipe is fixedly connected to a hose.

[0015] Preferably, one end of the hose is fixedly connected with a connector, the outer wall of the connector is threadedly connected with a connecting cap, the top of the inner wall of the connecting cap is fixedly connected with a sealing column, and the sealing column is slidably connected with the inner cavity of the connector.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model utilizes the mutual cooperation of the ball, the oil storage tank, the fixed pipe, the connecting pipe, the hose, the first slide groove and the second slide groove. The hose, the connecting pipe and the fixed pipe are connected with the interior of the oil storage tank, so that lubrication can be passed into the interior of the oil storage tank, and the lubricating oil in the oil storage tank flows into the interior of the first slide groove and the second slide groove, so that the lubricating oil flows into between the guide sleeve and the stirring shaft, and the ball makes the stirring shaft rotate smoothly, which is beneficial to the operation of directly adding the lubricating oil between the stirring shaft and the guide sleeve, and is convenient for injecting the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0019] Figure 2 It is a front sectional structural schematic diagram of the guide sleeve of the utility model.

[0020] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] Figure 4 It is a front sectional structural schematic diagram of the connecting pipe of the utility model.

[0022] Figure 5 It is a schematic diagram of the structure of the fixed pipe of the utility model.

[0023] In the figure: 1. stirring shaft; 2. stirring head; 3. fixed seat; 4. first flange; 5. second flange; 6. auxiliary mechanism; 61. ball; 62. oil storage tank; 63. fixed pipe; 64. connecting pipe; 65. hose; 66. connecting head; 67. connecting cap; 68. sealing column; 7. guide sleeve; 8. annular plate; 9. fixing ring; 10. extrusion column; 11. fixing cylinder; 12. bearing ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-5 A stirring mechanism for a vacuum melting furnace is shown, comprising a stirring shaft 1, a stirring head 2 is arranged at the bottom of the stirring shaft 1, a first flange 4 and a second flange 5 are arranged on the outer wall of the stirring shaft 1, a fixing seat 3 is arranged at the bottom of the second flange 5, a guide sleeve 7 is arranged on the outer sleeve of the stirring shaft 1, and a fixing cylinder 11 is fixedly connected to the bottom end of the second flange 5.

[0026] Furthermore, the guide sleeve 7 is provided with an auxiliary mechanism 6 for making the stirring shaft 1 rotate smoothly. The auxiliary mechanism 6 includes a ball 61. The ball 61 contacts the outer wall of the stirring shaft 1. The ball 61 is conducive to reducing the friction between the stirring shaft 1 and the inner wall of the guide sleeve 7, which is conducive to making the stirring shaft 1 rotate smoothly. The top of the guide sleeve 7 is provided with an oil storage groove 62, which is conducive to storing the added lubricating oil so that the lubricating oil can be subsequently flowed out for use. The inner wall of the guide sleeve 7 is provided with a ball groove. The ball 61 is embedded in the inner cavity of the ball groove. The inner wall of the ball groove is provided with a first slide groove. The first slide groove is conducive to the lubricating oil flowing into the inside of the ball groove along its inner cavity, which is conducive to the lubricating oil flowing into the ball 61 and lubricating the ball 61. The inner cavity of the first slide groove and the oil storage groove are connected. The inner cavities of the grooves 62 are interconnected, and a second slide groove is provided on the inner wall of the oil storage groove 62, which is conducive to the lubricating oil flowing from its inner cavity into the interior of the guide sleeve 7, and then lubricating the outside of the stirring shaft 1. The fixed pipe 63, the connecting pipe 64 and the hose 65, the fixed pipe 63 is conducive to being connected with the connecting pipe 64, which is convenient for installing the connecting pipe 64, the connecting pipe 64 is conducive to adding the lubricating oil to the interior of the oil storage groove 62, and is convenient for injecting the lubricating oil, the hose 65 is conducive to angle change, and is convenient for adding the lubricating oil, the fixed pipe 63 is located on the side of the guide sleeve 7, the connecting pipe 64 is located on the side of the fixed pipe 63, and the hose 65 is located on the outside of the fixed cylinder 11, and the fixed pipe 63, the connecting pipe 64 and the hose 65 are used to input the lubricating oil into the interior of the oil storage groove 62.

[0027] Specifically, the inner cavity of the oil storage tank 62 is slidably provided with an annular plate 8, and the annular plate 8 is made of rubber material, which is conducive to sealing the interior of the oil storage tank 62 and preventing the leakage of lubricating oil. The top of the annular plate 8 is fixedly connected with a load-bearing ring 12, which is conducive to driving the annular plate 8 to move and is convenient for operating the annular plate 8. A fixing ring 9 is embedded in the inner cavity of the first flange 4, which is conducive to the movement of the extrusion column 10 and is convenient for operating the extrusion column 10. The bottom end of the fixing ring 9 is fixedly connected with an extrusion column 10, which is conducive to extruding the load-bearing ring 12 and is convenient for limiting the position of the annular plate 8 to avoid random sliding of the annular plate 8. One end of the extrusion column 10 is fitted with the top of the load-bearing ring 12. A circular groove is opened on the inner wall of the oil storage tank 62, and the fixed tube 63 is fixedly inserted and connected with the inner cavity of the circular groove. The inner cavity of the fixed tube 63 is connected with the inner cavity of the oil storage tank 62.

[0028] Specifically, a through groove is opened on the outer wall of the fixed tube 11, and the connecting tube 64 is slidably connected with the inner cavity of the through groove. A sealing tube is fixedly connected to the inner wall of the through groove, which is conducive to sealing the connecting tube 64. The outer wall of the connecting tube 64 fits with the inner wall of the sealing tube.

[0029] Specifically, one end of the connecting tube 64 is fixedly connected to a mounting tube, which is conducive to connecting the connecting tube 64 with the fixed tube 63 and facilitating the installation and disassembly of the connecting tube 64. The outer wall of the mounting tube is threadedly inserted and connected with the inner cavity of the fixed tube 63. One end of the connecting tube 64 is fixedly connected to the hose 65. One end of the hose 65 is fixedly inserted and connected with a connector 66, which is conducive to connection with an external pipeline and convenient for injecting lubricating oil. The outer wall of the connecting head 66 is threadedly inserted and connected with a connecting cap 67, which is conducive to sealing the inner cavity of the connecting head 66 and preventing oil leakage. The top end of the inner wall of the connecting cap 67 is fixedly connected with a sealing column 68, which is conducive to sealing the interior of the connecting head 66. The sealing column 68 is slidably inserted and connected with the inner cavity of the connecting head 66.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring mechanism for a vacuum melting furnace, comprising: A stirring shaft (1), wherein a stirring head (2) is arranged at the bottom of the stirring shaft (1), a first flange (4) and a second flange (5) are arranged on the outer wall of the stirring shaft (1), a fixing seat (3) is arranged at the bottom of the second flange (5), a guide sleeve (7) is arranged on the outside of the stirring shaft (1), and a fixing cylinder (11) is fixedly connected to the bottom end of the second flange (5); The invention is characterized in that an auxiliary mechanism (6) for making the stirring shaft (1) rotate smoothly is arranged on the guide sleeve (7), and the auxiliary mechanism (6) comprises: The guide sleeve (7) has an oil storage groove (62) at its top, a ball groove is formed on the inner wall of the guide sleeve (7), the ball (61) is embedded in the inner cavity of the ball groove, a first slide groove is formed on the inner wall of the ball groove, the inner cavity of the first slide groove is connected to the inner cavity of the oil storage groove (62), and a second slide groove is formed on the inner wall of the oil storage groove (62); A fixed pipe (63), a connecting pipe (64) and a hose (65), wherein the fixed pipe (63) is located on the side of the guide sleeve (7), the connecting pipe (64) is located on the side of the fixed pipe (63), and the hose (65) is located outside the fixed cylinder (11). The fixed pipe (63), the connecting pipe (64) and the hose (65) are used to input lubricating oil into the interior of the oil storage tank (62).

2. A vacuum melting furnace stirring mechanism according to claim 1, characterized in that: An annular plate (8) is slidably arranged in the inner cavity of the oil storage tank (62), and a load-bearing ring (12) is fixedly connected to the top end of the annular plate (8). A fixing ring (9) is embedded in the inner cavity of the first flange (4), and an extrusion column (10) is fixedly connected to the bottom end of the fixing ring (9), and one end of the extrusion column (10) is in contact with the top end of the load-bearing ring (12).

3. A vacuum melting furnace stirring mechanism according to claim 1, characterized in that: The inner wall of the oil storage tank (62) is provided with a circular groove, the fixed tube (63) is fixedly inserted and connected with the inner cavity of the circular groove, and the inner cavity of the fixed tube (63) is communicated with the inner cavity of the oil storage tank (62).

4. A vacuum melting furnace stirring mechanism according to claim 1, characterized in that: The outer wall of the fixed tube (11) is provided with a through groove, the connecting tube (64) is slidably connected with the inner cavity of the through groove, the inner wall of the through groove is fixedly connected with a sealing tube, and the outer wall of the connecting tube (64) is in contact with the inner wall of the sealing tube.

5. The stirring mechanism of a vacuum melting furnace according to claim 1, characterized in that: One end of the connecting tube (64) is fixedly connected to a mounting tube, the outer wall of the mounting tube is threadedly connected to the inner cavity of the fixing tube (63), and one end of the connecting tube (64) is fixedly connected to a hose (65).

6. A vacuum melting furnace stirring mechanism according to claim 1, characterized in that: One end of the hose (65) is fixedly connected with a connector (66), the outer wall of the connector (66) is threadedly connected with a connector cap (67), the top end of the inner wall of the connector cap (67) is fixedly connected with a sealing column (68), and the sealing column (68) is slidably connected with the inner cavity of the connector (66).

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