Tool for quickly disassembling and assembling stud of electrode cross arm

Abstract

The utility model relates to a tool for quickly disassembling and assembling a stud of an electrode cross arm, and belongs to the technical field of mechanical equipment in the metallurgical industry. According to the technical scheme, a C-shaped frame (3) is fixedly connected to a turning plate supporting frame (7), turning plate trunnions (21) rotationally connected with the turning plate supporting frame (7) are arranged on the two sides of a turning plate (5) respectively, shaft sleeves (11) are arranged outside the turning plate trunnions (21), the shaft sleeves (11) are fixed to the turning plate supporting frame (7), and positioning pins (30) are arranged between the shaft sleeves (11) and the turning plate trunnions (21); the lead screw (8) is in threaded connection with the turning plate (5), the upper end of the lead screw (8) is provided with a clamping sleeve (2) matched with an electrode cross arm stud, and a sheath (4) is arranged outside the lead screw (8); a clamping sleeve (2) at the upper end of the lead screw (8) is fixed to the upper end of the lead screw (8) through a square clamping head (29). According to the utility model, the stud of the electrode cross arm can be quickly disassembled and assembled, and the mounting quality is ensured.

Description

Technical Field

[0001] The utility model relates to a tool for quickly disassembling and assembling stud bolts of an electrode cross arm, and belongs to the technical field of mechanical equipment in the metallurgical industry. Background Art

[0002] The continuous casting process itself has extremely strict requirements on the quality of molten steel, which requires the secondary refining LF furnace to ensure the requirements of molten steel for continuous casting. Therefore, the refining LF furnace is an important part of the entire production line. The water-cooled electrode cross arm is the main equipment of the LF furnace in the off-furnace refining equipment. Its use and conductivity directly affect the quality of off-furnace refining. The electrode cross arm requires overall insulation during the molten steel refining process. Therefore, during the installation and use process, it is necessary to ensure that each insulating part is installed correctly and intact. During the disassembly and maintenance of the electrode cross arm grounding fault, it was found that after the electrode cross arm was installed, the electrode connected to it needed to be aligned and aligned. During the alignment process, the cross arm needed to be fine-tuned, which could easily cause the cross arm fixing bolt eye distance to be misaligned, thereby causing the bolt insulation sleeve to be squeezed and affecting the overall insulation effect of the electrode cross arm. Therefore, the verticality of the electrode cross arm stud bolt and its insulation sleeve during the installation process is crucial.

[0003] The electrode cross arm fixing bolts are arranged on both sides of the lifting column. Each cross arm is fixed by four stud bolts made of stainless steel, each weighing about 60 pounds. After removing the locking nut, because the screw is smooth and hard, and is squeezed with the insulating sleeve, it cannot be removed by hand or with other wrenches. Using pipe pliers to remove it may damage the surface of the bolt, making it impossible for the bolt insulating sleeve to fit effectively. In addition, due to the constraints of the production process, the maintenance platform is narrow, which is not conducive to the maintenance personnel's work, causing certain difficulties in removing the bolts. Therefore, the maintenance time is long, which seriously affects the smooth production.

[0004] Therefore, it is very necessary to develop a quick disassembly and assembly tool that saves time and effort and is safe and efficient. Utility Model Content

[0005] The utility model aims to provide a tool for quickly disassembling and assembling the stud bolts of the electrode cross arm, which can quickly complete the disassembly and assembly of the stud bolts of the electrode cross arm, ensure the installation quality, and solve the problems existing in the background technology.

[0006] The technical solution of the utility model is:

[0007] A tool for quickly disassembling and assembling the stud bolts of an electrode cross arm, comprising a ferrule, a C-shaped frame, a sleeve, a flap, a flap support frame, a lead screw, a shaft sleeve, a flap ear shaft and a locating pin, wherein the C-shaped frame is fixedly connected to the flap support frame, and both sides of the flap are respectively provided with flap ear shafts rotatably connected to the flap support frame, and shaft sleeves are provided outside the flap ear shafts, and the shaft sleeves are fixed to the flap support frame, and a locating pin is provided between the shaft sleeve and the flap ear shaft; the lead screw is threadedly connected to the flap, and a ferrule matching the stud bolts of the electrode cross arm is provided on the upper end of the lead screw, and a sleeve is provided outside the lead screw.

[0008] The clamping sleeve at the upper end of the lead screw matched with the stud bolt of the electrode cross arm is fixed on the upper end of the lead screw through a square clamping head.

[0009] The outer sheath of the lead screw is fixed on the flap.

[0010] An end cover is provided at the end of the shaft sleeve.

[0011] The end cover at the end of the shaft sleeve is fixedly connected to the flap ear shaft by bolts.

[0012] The flap is a rectangular plate, and the flap support frame is a rectangular frame matched with the flap.

[0013] A T-shaped screw mouth matched with the lead screw is arranged in the middle of the flap.

[0014] The C-shaped frame is composed of two parts that are symmetrical on both sides.

[0015] The two left-right symmetrical parts of the C-shaped frame are connected together by a fixing pin.

[0016] When using the utility model, according to the size of various stud bolts and the size of the electrode cross arm, the corresponding size of the clamping sleeve is selected, and the size of the C-type frame is adjusted. Then the C-type frame is installed on the electrode cross arm, the clamping sleeve installed on the upper end of the screw is connected with the stud bolt, and then the ratchet or electric wrench is used to connect with the clamping head at the lower end of the screw, and the disassembly and assembly of the stud bolt is completed in a short time, meeting the technical requirements of equipment installation and construction.

[0017] The utility model has the beneficial effects of being able to meet the disassembly and assembly requirements of stud bolts of electrode cross arms of different specifications and sizes, and having the characteristics of short disassembly and assembly time, safety and reliability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the use state of the utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point C in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point D in the middle;

[0021] Figure 4 This is the front view of the utility model;

[0022] Figure 5 It is a top view of the utility model;

[0023] Figure 6 for Figure 4 A partial cross-sectional view of

[0024] In the figure: 1. stud bolt; 2. ferrule; 3. C-type frame; 4. sleeve; 5. flap; 6. M16 nut; 7. flap support frame; 8. lead screw; 9. lead screw driving end; 10. M6 bolt; 11. bushing; 12. end cover; 13. stud bolt lower clamp; 14. stud bolt mica pad; 15. stainless steel washer; 16. torque nut; 17. M16 bolt; 18. stud bolt mica sleeve; 19. electrode cross arm; 20. electrode cross arm lifting column; 21. flap ear shaft; 22. locating pin hole; 23. C-type frame moving end; 24. C-type frame fixed end; 25. fixing pin; 26. C-type frame adjustment hole; 27. 17mm screw hole; 28. T-type screw mouth; 29. ​​square clamp; 30. locating pin; 31. T-type screw buckle. DETAILED DESCRIPTION

[0025] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0026] Refer to the attached Figure 1-6 A tool for quickly disassembling and assembling the stud bolts of an electrode cross arm, comprising a sleeve 2, a C-shaped frame 3, a sleeve 4, a flap 5, a flap support frame 7, a lead screw 8, a sleeve 11, a flap ear shaft 21 and a locating pin 30. The C-shaped frame 3 is fixedly connected to the flap support frame 7, and both sides of the flap 5 are respectively provided with flap ear shafts 21 rotatably connected to the flap support frame 7. The outside of the flap ear shaft 21 is provided with a sleeve 11, the sleeve 11 is fixed to the flap support frame 7, and a locating pin 30 is provided between the sleeve 11 and the flap ear shaft 21; the lead screw 8 is threadedly connected to the flap 5, and the upper end of the lead screw 8 is provided with a sleeve 2 that matches the stud bolts of the electrode cross arm, and the outside of the lead screw 8 is provided with a sleeve 4.

[0027] In this embodiment, if Figure 3 As shown, the C-shaped frame 3 is composed of two parts that are symmetrical on the left and right. The C-shaped frame 3 adjusts the size of the C-shaped frame through the C-shaped frame moving end 23 and the C-shaped frame fixed end 24, and the fixing pin 25 is inserted into the C-shaped frame adjustment hole 26.

[0028] like Figure 3-6As shown, the lower end of the C-shaped frame 3 is connected to the flap bracket 7, and the ear shafts 21 are symmetrically arranged on both sides of the flap 5. The ear shafts 21 are inserted into the shaft sleeves 11, and the shaft sleeves 11 are welded to the flap bracket 7. The end cover 12 is connected to the ear shaft 21 by the M6 ​​bolts 10, and the end cover 12 is pressed on the shaft sleeve 11 to prevent the flap 5 from moving left and right. After the flap 5 is adjusted to the horizontal position, the fixing pin 30 is inserted into the positioning pin hole 22 to ensure that the flap 5 does not flip during the removal of the stud bolts 1.

[0029] like Figure 4 , 5 As shown, the sleeve 4 is welded on the flap 5, the screw 8 interacts with the T-shaped screw buckle 28 on the flap 5 to make the screw 8 move up and down, the sleeve 2 is fixed on the double-headed screw 8 through the square clamp 29 at the top of the screw 8, and the screw 8 is placed in the sleeve 4.

[0030] The working process of the utility model is:

[0031] Refer to the attached Figure 1-6 When in use, first select a ferrule 2 of corresponding size according to the size of various bolt heads and the size of the electrode cross arm, and adjust the size of the C-type frame 3; then fix the C-type frame 3 on the electrode cross arm 19, and insert the fixing pin 25 after adjusting the C-type frame 3; use an electric wrench to remove the torque nut screw 17, remove the torque nut 16, remove the stainless steel washer 15 and the stud bolt mica washer 14, and the stud bolt mica sleeve 18 is adjusted by adjusting the relative position of the M16 nut 6 and the T-shaped screw buckle 31 of the C-type frame 3 to meet the use requirements; use a ratchet wrench or an electric wrench to connect the driving end 9 of the lead screw 8, adjust the amount of advancement of the lead screw so that the replaceable ferrule 2 is effectively fitted with the lower card square 13 of the stud bolt, and the electrode stud bolt 1 is disassembled by reversing the ratchet wrench or the electric wrench. During the disassembly process, the sheath 4 prevents the stud bolt 1 from being dislocated and tipped over, causing injury to the operator. After the disassembly is completed, a disassembly worker holds the lead screw 8 with one hand and pulls out the horizontal positioning pin 30 of the flap ear shaft with the other hand, slowly turns the flap 5 to make the stud bolt 1 disengage from the screw hole position, and then another maintenance worker takes out the stud bolt 1. The installation process is the reverse of the disassembly process.

[0032] After the tool is put into use, it can meet the needs of disassembly and assembly of various types of electrode cross arm stud bolts. It no longer requires multiple people to work, and the number of people is reduced from three to two. The disassembly time is shortened from 4 hours to 1 hour. The operation is simple, convenient, time-saving and labor-saving. It not only ensures the personal safety of operators, but also reduces the labor intensity of employees.

Claims

1. A tool for quickly disassembling and assembling stud bolts of electrode cross arms, characterized by: The invention comprises a ferrule (2), a C-shaped frame (3), a protective sleeve (4), a flap (5), a flap support frame (7), a lead screw (8), a shaft sleeve (11), a flap ear shaft (21) and a positioning pin (30); the C-shaped frame (3) is fixedly connected to the flap support frame (7); flap ear shafts (21) rotatably connected to the flap support frame (7) are respectively provided on both sides of the flap (5); a shaft sleeve (11) is provided outside the flap ear shaft (21); the shaft sleeve (11) is fixed on the flap support frame (7); a positioning pin (30) is provided between the shaft sleeve (11) and the flap ear shaft (21); the lead screw (8) is threadedly connected to the flap (5); a ferrule (2) matching with the stud bolt of the electrode cross arm is provided at the upper end of the lead screw (8); and a protective sleeve (4) is provided outside the lead screw (8).

2. A tool for quickly disassembling and assembling stud bolts of electrode cross arms according to claim 1, characterized in that: The clamping sleeve (2) at the upper end of the lead screw (8) matches the stud bolt of the electrode cross arm and is fixed to the upper end of the lead screw (8) via a square clamping head (29).

3. A tool for quickly disassembling and assembling stud bolts of electrode cross arms according to claim 1 or 2, characterized in that: The outer sheath (4) of the lead screw (8) is fixed on the flap (5).

4. The tool for quickly disassembling and assembling the stud bolts of the electrode cross arm according to claim 1, characterized in that: An end cover (12) is provided at the end of the shaft sleeve (11).

5. The tool for quickly disassembling and assembling the stud bolts of the electrode cross arm according to claim 4, characterized in that: The end cover (12) at the end of the shaft sleeve (11) is fixedly connected to the flap ear shaft (21) by means of bolts.

6. The tool for quickly disassembling and assembling the stud bolts of the electrode cross arm according to claim 1, characterized in that: The flap (5) is a rectangular plate, and the flap support frame (7) is a rectangular frame that matches the flap (5).

7. A tool for quickly disassembling and assembling stud bolts of electrode cross arms according to claim 6, characterized in that: A T-shaped screw hole (28) matching with the lead screw (8) is provided in the middle of the flap (5).

8. The tool for quickly disassembling and assembling the stud bolts of the electrode cross arm according to claim 1, characterized in that: The C-shaped frame (3) is composed of two parts that are symmetrical on the left and right.

9. A tool for quickly disassembling and assembling stud bolts of electrode cross arms according to claim 8, characterized in that: The two left-right symmetrical parts of the C-shaped frame (3) are connected together via a fixing pin (25).

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