Valve shaft structure of metallurgical valve body

Abstract

The utility model discloses a valve shaft structure of a metallurgical valve body, which comprises a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a valve shaft, an auxiliary mechanism used for independently replacing the contact surface of the valve shaft is arranged outside the valve shaft, the auxiliary mechanism comprises an auxiliary cylinder, and the auxiliary cylinder is used for being contacted with the inner wall of the valve body. The auxiliary cylinder is arranged on the valve shaft to serve as a contact surface of the valve shaft and the inner wall of the valve body, and the auxiliary ring is used for connecting and positioning the auxiliary cylinder. The auxiliary barrel, the auxiliary ring, the valve shaft, the positioning column, the mounting barrel, the fixing frame and the spring are matched with one another, the auxiliary ring supports the auxiliary barrel, the auxiliary barrel splits the outer portion of the valve shaft, the outer wall of the auxiliary barrel serves as the contact face of the valve shaft, the outer wall of the auxiliary barrel makes contact with the inner wall of the valve body, and therefore the valve shaft can be detached. And the elastic force of the spring pushes the positioning column to move, so that the auxiliary cylinder can be conveniently mounted and dismounted, the contact surface of the valve shaft can be conveniently and independently replaced, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical valve body and valve shaft structure, in particular to a metallurgical valve body and valve shaft structure. Background Art

[0002] Metallurgy usually refers to the smelting and processing of metals. Metallurgical valves are used in some metallurgical operations, and there are various types of metallurgical valves.

[0003] The metallurgical valves in the prior art usually include a valve body, a valve shaft, a valve plate and a rotating shaft, etc. The valve shaft is connected to the rotating shaft, and the valve shaft is connected to the valve plate. When the external rotating shaft rotates, the rotating shaft drives the valve shaft to rotate, and the valve shaft drives the valve plate to rotate, thereby operating the valve plate.

[0004] The valve shaft is usually connected to the rotating shaft in one piece. When the valve shaft rotates, it usually rubs against the inner wall of the valve body. However, after long-term use, the outer wall of the valve shaft will wear, so that there is a certain gap between the outer wall of the valve shaft and the inner wall of the valve body, resulting in leakage between the valve shaft and the inner wall of the valve body, and then the valve shaft needs to be replaced. The existing technology usually requires the rotating shaft and the valve shaft to be replaced as a whole. This method will result in cumbersome operation and is not convenient for independent replacement of the external wear surface of the valve shaft, which has certain limitations. Utility Model Content

[0005] The utility model aims to provide a valve shaft structure of a metallurgical valve body to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a valve shaft structure of a metallurgical valve body, comprising:

[0007] A rotating shaft, the bottom end of which is fixedly connected to a valve shaft;

[0008] An auxiliary mechanism for independently replacing the valve shaft contact surface is disposed outside the valve shaft, and the auxiliary mechanism includes:

[0009] An auxiliary cylinder, wherein the auxiliary cylinder is sleeved on the outside of the valve shaft and is used to contact the inner wall of the valve body to serve as a contact surface between the valve shaft and the inner wall of the valve body;

[0010] An auxiliary ring, the auxiliary ring is located at the bottom of the rotating shaft, and the auxiliary ring is used for connecting and positioning the auxiliary cylinder;

[0011] A positioning column, a mounting cylinder and a spring, wherein the mounting cylinder is mounted on the side of the valve shaft, the positioning column is slidably arranged inside the mounting cylinder, the spring is located on the side of the positioning column, and the positioning column is used to lock the connection position of the auxiliary cylinder.

[0012] Preferably, the top end of the auxiliary tube is fixedly connected to the auxiliary ring, the valve shaft is slidably and interpenetratingly connected to the inner cavities of the auxiliary tube and the auxiliary ring, a T-slot is provided on the side of the auxiliary tube, the positioning column is slidably and interpenetratingly connected to the inner cavity of the T-slot, and the inner cavity of the T-slot is threadedly and interpenetratingly connected with a sealing plug.

[0013] Preferably, a first circular groove is provided on the side of the valve shaft, a second circular groove is provided on one side of the inner wall of the first circular groove, the mounting tube is slidably inserted and connected with the inner cavity of the second circular groove, the outer wall of the mounting tube is fixedly inserted and connected with a threaded ring for connecting and installing the mounting tube, and the threaded ring is threadedly inserted and connected with the inner cavity of the first circular groove.

[0014] Preferably, the inner cavity of the mounting tube is embedded with a fixed frame for slidingly guiding the positioning column, the top and bottom ends of the positioning column are fixedly connected with a sliding plate for horizontally slidingly guiding the positioning column, the top and bottom ends of the inner wall of the mounting tube are provided with a guide groove, and the sliding plate is slidably interlaced with the inner cavity of the guide groove.

[0015] Preferably, the interior of the mounting tube is slidably and interspersed with a guide frame, the top and bottom ends of the mounting tube are threadedly and interspersed with locking bolts, one end of the locking bolts is threadedly and interspersed with the guide frame, the inner cavity of the guide frame is slidably and interspersed with a fixing rod, one end of the fixing rod is fixedly connected to the positioning column, the outer wall of the fixing rod is provided with a spring for driving the positioning column to slide horizontally, one end of the spring is in contact with the positioning column, and the other end of the spring is in contact with the guide frame.

[0016] Preferably, a positioning plate for mounting and positioning the auxiliary ring is symmetrically fixedly connected to the top end of the auxiliary ring, and a groove is symmetrically provided at the bottom end of the rotating shaft, and the positioning plate is slidably and interlacedly connected with the inner cavity of the groove.

[0017] Technical effects and advantages of the utility model:

[0018] The utility model utilizes the mutual cooperation of the auxiliary cylinder, the auxiliary ring, the valve shaft, the positioning column, the installation cylinder, the fixing frame and the spring. The auxiliary ring supports the auxiliary cylinder, and the auxiliary cylinder splits the outside of the valve shaft. The outer wall of the auxiliary cylinder serves as the contact surface of the valve shaft. The outer wall of the auxiliary cylinder contacts the inner wall of the valve body. The elastic force of the spring pushes the positioning column to move, which is beneficial to the installation and disassembly of the auxiliary cylinder, and is convenient for independent replacement of the contact surface of the valve shaft, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a front sectional structural schematic diagram of the rotating shaft of the utility model.

[0021] Figure 3 It is a front sectional structural schematic diagram of the installation tube of the utility model.

[0022] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. rotating shaft; 2. valve shaft; 3. auxiliary mechanism; 31. auxiliary cylinder; 32. auxiliary ring; 33. positioning column; 34. mounting cylinder; 35. fixing frame; 36. threaded ring; 37. sliding plate; 38. guide frame; 39. fixing rod; 310. spring; 311. locking bolt; 4. sealing plug; 5. positioning plate. 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 1-4 The valve shaft structure of a metallurgical valve body shown comprises a rotating shaft 1 , the bottom end of which is fixedly connected to a valve shaft 2 .

[0026] Furthermore, an auxiliary mechanism 3 for independently replacing the contact surface of the valve shaft 2 is provided on the outside of the valve shaft 2. The auxiliary mechanism 3 includes an auxiliary cylinder 31. The auxiliary cylinder 31 splits the valve shaft 2. The outer wall of the auxiliary cylinder 31 serves as the contact surface of the valve shaft 2, which is beneficial for independently replacing the auxiliary cylinder 31 after the auxiliary cylinder 31 is worn, and is convenient for replacement operation. The auxiliary cylinder 31 is sleeved on the outside of the valve shaft 2. The auxiliary cylinder 31 is used to contact the inner wall of the valve body to serve as the contact surface between the valve shaft 2 and the inner wall of the valve body. The auxiliary ring 32 is beneficial for supporting the auxiliary cylinder 31 and facilitating the installation of the auxiliary cylinder 31. The auxiliary ring 32 is located at the bottom of the rotating shaft 1. The auxiliary ring 32 is used for connecting and positioning the auxiliary cylinder 31. The positioning column 33, the installation cylinder 34 and the spring 310 are fixed. The positioning column 33 is conducive to limiting the relative position of the auxiliary cylinder 31 and the valve shaft 2, and is further conducive to the installation and disassembly of the auxiliary cylinder 31, and is convenient for removing the auxiliary cylinder 31 and replacing it independently, which is convenient for operation. The installation cylinder 34 is conducive to the sliding of the positioning column 33 inside it, and is also conducive to the sliding support of the positioning column 33, which is convenient for the installation and disassembly of the positioning column 33. The elastic force of the spring 310 is conducive to pushing the positioning column 33 to move, which is convenient for the positioning column 33 to return to its original position after movement, and is convenient for repeated operation of the positioning column 33. The installation cylinder 34 is installed on the side of the valve shaft 2, and the positioning column 33 is slidably arranged inside the installation cylinder 34. The spring 310 is located on the side of the positioning column 33, and the positioning column 33 is used to lock the connection position of the auxiliary cylinder 31.

[0027] Specifically, the top end of the auxiliary tube 31 is fixedly connected to the auxiliary ring 32, the valve shaft 2 is slidably and interlacedly connected with the inner cavities of the auxiliary tube 31 and the auxiliary ring 32, a T-slot is provided on the side of the auxiliary tube 31, the positioning column 33 is slidably and interlacedly connected with the inner cavity of the T-slot, and the inner cavity of the T-slot is threadedly interlaced with a sealing plug 4, which is beneficial to sealing the outside of the auxiliary tube 31 and facilitating the sealing operation of the positioning column 33.

[0028] Specifically, a first circular groove is opened on the side of the valve shaft 2, and a second circular groove is opened on one side of the inner wall of the first circular groove. The mounting tube 34 is slidably inserted and connected with the inner cavity of the second circular groove, and the outer wall of the mounting tube 34 is fixedly inserted and connected with a threaded ring 36 for connecting and installing the mounting tube 34, which is beneficial to supporting the mounting tube 34 and is also beneficial to installing and disassembling the mounting tube 34, and is convenient for removing and maintaining the mounting tube 34. The threaded ring 36 is threadedly inserted and connected with the inner cavity of the first circular groove.

[0029] Specifically, the inner cavity of the installation cylinder 34 is embedded with a fixed frame 35 for guiding the sliding of the positioning column 33, which is conducive to the sliding of the positioning column 33 inside it and facilitates the sliding support of the positioning column 33. The top and bottom ends of the positioning column 33 are fixedly connected with a sliding plate 37 for guiding the horizontal sliding of the positioning column 33, which is conducive to guiding the sliding of the positioning column 33. The top and bottom ends of the inner wall of the installation cylinder 34 are provided with guide grooves, and the sliding plate 37 is slidably interlaced with the inner cavity of the guide groove.

[0030] Specifically, the interior of the mounting tube 34 is slidably and interspersed with a guide frame 38, which is conducive to the sliding of the fixing rod 39 therein. The top and bottom ends of the mounting tube 34 are threadedly and interspersed with locking bolts 311, which are conducive to the installation and disassembly of the guide frame 38, and the installation and disassembly of the positioning column 33, which is convenient for the installation and disassembly of the spring 310. One end of the locking bolt 311 is threadedly and interspersed with the guide frame 38, and the inner cavity of the guide frame 38 is slidably and interspersed with a fixing rod 39. One end of the fixing rod 39 is fixedly connected to the positioning column 33. The outer wall of the fixing rod 39 is provided with a spring 310 for driving the positioning column 33 to slide horizontally. The elastic force of the spring 310 is conducive to pushing the positioning column 33 to move, so that the positioning column 33 can return to its original position after movement, and it is convenient to repeat the operation of the positioning column 33. One end of the spring 310 is in contact with the positioning column 33, and the other end of the spring 310 is in contact with the guide frame 38.

[0031] Furthermore, the top of the auxiliary ring 32 is symmetrically fixedly connected with a positioning plate 5 for installing and positioning the auxiliary ring 32, which is beneficial to the positioning of the installation of the auxiliary ring 32. The bottom end of the rotating shaft 1 is symmetrically provided with grooves, and the positioning plate 5 is slidably inserted and connected with the inner cavity of the groove.

[0032] 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 valve shaft structure of a metallurgical valve body, comprising: A rotating shaft (1), the bottom end of which is fixedly connected to a valve shaft (2); The invention is characterized in that an auxiliary mechanism (3) for independently replacing the contact surface of the valve shaft (2) is arranged outside the valve shaft (2), and the auxiliary mechanism (3) comprises: An auxiliary cylinder (31), wherein the auxiliary cylinder (31) is sleeved on the outside of the valve shaft (2), and the auxiliary cylinder (31) is used to contact the inner wall of the valve body to serve as a contact surface between the valve shaft (2) and the inner wall of the valve body; An auxiliary ring (32), the auxiliary ring (32) is located at the bottom of the rotating shaft (1), and the auxiliary ring (32) is used for connecting and positioning the auxiliary cylinder (31); A positioning column (33), a mounting cylinder (34) and a spring (310), wherein the mounting cylinder (34) is mounted on the side of the valve shaft (2), the positioning column (33) is slidably arranged inside the mounting cylinder (34), the spring (310) is located on the side of the positioning column (33), and the positioning column (33) is used to lock the connection position of the auxiliary cylinder (31).

2. The valve shaft structure of a metallurgical valve body according to claim 1, characterized in that: The top end of the auxiliary tube (31) is fixedly connected to the auxiliary ring (32), the valve shaft (2) is slidably connected to the inner cavities of the auxiliary tube (31) and the auxiliary ring (32), a T-shaped groove is provided on the side of the auxiliary tube (31), the positioning column (33) is slidably connected to the inner cavity of the T-shaped groove, and the inner cavity of the T-shaped groove is threadedly connected to a sealing plug (4).

3. The valve shaft structure of a metallurgical valve body according to claim 1, characterized in that: A first circular groove is formed on the side of the valve shaft (2), a second circular groove is formed on one side of the inner wall of the first circular groove, the mounting tube (34) is slidably inserted into the inner cavity of the second circular groove, a threaded ring (36) is fixedly inserted into the outer wall of the mounting tube (34) for connecting and installing the mounting tube (34), and the threaded ring (36) is threadedly inserted into the inner cavity of the first circular groove.

4. The valve shaft structure of a metallurgical valve body according to claim 1, characterized in that: A fixed frame (35) for guiding the slidable positioning column (33) is embedded in the inner cavity of the installation cylinder (34); the top and bottom ends of the positioning column (33) are fixedly connected with a sliding plate (37) for guiding the horizontal sliding of the positioning column (33); the top and bottom ends of the inner wall of the installation cylinder (34) are provided with a guide groove; the sliding plate (37) is slidably interlaced with the inner cavity of the guide groove.

5. The valve shaft structure of a metallurgical valve body according to claim 1, characterized in that: The interior of the installation tube (34) is slidably connected with a guide frame (38), and the top and bottom ends of the installation tube (34) are threadedly connected with locking bolts (311), one end of the locking bolt (311) is threadedly connected with the guide frame (38), and the inner cavity of the guide frame (38) is slidably connected with a fixing rod (39), one end of the fixing rod (39) is fixedly connected with the positioning column (33), and the outer wall of the fixing rod (39) is provided with a spring (310) for driving the positioning column (33) to slide horizontally, one end of the spring (310) is in contact with the positioning column (33), and the other end of the spring (310) is in contact with the guide frame (38).

6. The valve shaft structure of a metallurgical valve body according to claim 1, characterized in that: The top end of the auxiliary ring (32) is symmetrically fixedly connected with a positioning plate (5) for installing and positioning the auxiliary ring (32); the bottom end of the rotating shaft (1) is symmetrically provided with a groove; the positioning plate (5) is slidably interlaced with the inner cavity of the groove.

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