CN220690007U - Coaxiality measuring tool for graphite electrode - Google Patents

Abstract

The utility model relates to a graphite electrode coaxiality measuring tool, which comprises a stand column, wherein a dial gauge is arranged at the top end of the stand column, first sliding grooves are formed in two sides of the stand column in a penetrating manner, a sliding rod is slidably arranged in the first sliding grooves, a threaded shaft is arranged at one end of the sliding rod, a clamping block is rotatably arranged at the tail end of the threaded shaft, the other end of the sliding rod is flush with the side wall of the stand column, a limit screw is arranged at the other end of the sliding rod in a threaded manner, a knob is vertically and fixedly arranged at the tail end of the limit screw far away from the sliding rod, the clamping block directly stretches into a graphite electrode hole and is attached to the inner hole wall of the electrode hole, screwing in and unscrewing of the electrode hole are not needed.

Description

Coaxiality measuring tool for graphite electrode

Technical Field

The utility model relates to the technical field of graphite electrode butt joint, in particular to a tool for measuring coaxiality of graphite electrodes.

Background

When the graphite electrode is installed, the coaxiality of the two electrodes which are required to be connected well must be ensured to be below 0.15mm, so that when the electrode group is powered in a steel furnace, the direction of secondary current can uniformly run along the direction of the outer circle of the electrode, and the joint cannot be excessively run, thereby ensuring that the thermal efficiency of the electrode can achieve the best effect, and simultaneously, the lower coaxiality is an effective detection parameter for ensuring that the joint is not broken;

in the past, a domestic plug gauge is screwed into an electrode hole, a measuring tool manufactured by the domestic plug gauge is used for abutting against the end face of the electrode, a locating pin at the tail part of the measuring tool is inserted into a small hole of the plug gauge, the hole is taken as a fixed point, the measuring tool is perpendicular to two small holes symmetrical with the plug gauge, a dial indicator detects the deviation of 4 points of the outer circle of the electrode at the outer circle of the electrode, in specific butt joint work, the scheme has complex operation steps, the measuring tool is heavy, the operation is inconvenient, the coaxiality of the electrode needs to be regulated at a lathe fixture, the position of the 4 holes of the plug gauge screwed into the electrode hole each time is different from the position of the fixture at the outer circle of the electrode, the position is not well resolved, and the problem of inconvenient use exists.

Disclosure of Invention

The utility model provides a tool for measuring coaxiality of a graphite electrode, which aims to solve the technical problems in the background technology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a graphite electrode axiality measuring tool, includes the stand, the top installation percentage table of stand, first spout has been run through to the stand both sides, sliding installation has the slide bar in the first spout, slide bar one end screw thread installation screw thread axle, the terminal installation fixture block that rotates of screw thread axle, the other end and the lateral wall parallel and level design of stand of slide bar, and slide bar other end screw thread installation spacing screw, the terminal perpendicular fixed mounting of slide bar is kept away from to spacing screw has the knob, the knob is attached at slide bar tip and the lateral wall of stand.

Preferably, the two opposite inner groove walls of the first sliding groove are respectively provided with a second sliding groove, two opposite outer side walls of the sliding rod are respectively fixedly provided with a sliding block, and the two sliding blocks are respectively and slidably arranged in the corresponding second sliding grooves.

Preferably, the rotating block is embedded in the clamping block for rotation, and one end of the threaded shaft penetrates through threads on one end of the threaded shaft and stretches into the clamping block, and is vertically and fixedly installed with the rotating block.

Preferably, the outer shaft wall of the threaded shaft is fixedly sleeved with a rotating ring, and one side, close to the upright post, of the clamping block is vertically and fixedly provided with two limiting shafts.

Preferably, two limiting holes are formed in one side of the upright post, and the two limiting shafts are respectively and adaptively arranged in the corresponding limiting holes in a sliding mode.

Preferably, the input end of the dial indicator is fixedly provided with an installation seat, and the bottom end of the installation seat is embedded with a rolling installation ball.

The beneficial effects of the utility model are as follows:

firstly, a fixture block is arranged and used for replacing the traditional plug gauge, the fixture block directly stretches into a graphite electrode hole and is attached to the inner hole wall of the electrode hole, the electrode hole does not need to be screwed in or out, the distance between two points is adjusted according to different hole wall thicknesses of different electrode specifications, a measuring tool (stand column) is tightly attached to the electrode end face positioning card to be tightly attached to the hole wall, the deviation of four points (fixture positions) at the outer edge of the electrode is observed, and then the electrode fixture is adjusted, so that the device has the characteristics of simplicity in use, and is also convenient to carry due to light weight and small size;

then, then install the fixture block in the tip of screw axis, screw thread regulation through screw axis and slide bar can adjust the fixture block and extend convex length to preliminary convenience cooperates with different specification graphite electrode joint, and whole slide bar includes screw axis and fixture block in addition and can reciprocate the slip from top to bottom on the stand, and realizes the spacing fixedly of extrusion through the mode of tightening limit screw, can be further convenient cooperate with different specification graphite electrode joint.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present utility model;

FIG. 2 is a schematic view of the structure of the column according to the present utility model;

FIG. 3 is a schematic view of the slide bar mounting structure of the present utility model;

fig. 4 is a schematic view of the mounting structure of the fixing rod of the present utility model.

Legend description:

1. a column; 11. a first chute; 12. a second chute; 13. a limiting hole;

2. a slide bar; 21. a slide block; 22. a threaded shaft; 23. a clamping block; 24. a rotating ring; 25. a limiting shaft;

3. a limit screw; 31. a knob;

4. a fixed rod; 41. a dial indicator; 42. a mounting base; 43. and (3) rolling balls.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples are given below.

Referring to fig. 1-4, a tool for measuring coaxiality of graphite electrodes comprises a stand column 1, wherein a dial indicator 41 is arranged at the top end of the stand column 1, the dial indicator 41 is a gauge type universal length measuring tool manufactured by a precise rack and pinion mechanism, the gauge type universal length measuring tool generally comprises a measuring head, a measuring rod, a shockproof spring, racks, gears, hairsprings, a dial plate, pointers and the like, first sliding grooves 11 are formed in two sides of the stand column 1 in a penetrating manner, a sliding rod 2 is arranged in the first sliding grooves 11 in a sliding manner, the sliding rod 2 can slide up and down in the first sliding grooves 11 to adjust the height, namely, the distance between the sliding rod 2 and the top dial indicator 41 is adjusted, a threaded shaft 22 is arranged at one end of the sliding rod 2, a clamping block 23 is rotatably arranged at the tail end of the threaded shaft 22, the other end of the sliding rod 2 is flush with the side wall of the stand column 1, a limit screw 3 is arranged at the other end of the sliding rod 2 in a threaded manner, a knob 31 is fixedly arranged at the tail end of the limit screw 3 far away from the sliding rod 2, the end of the sliding rod 2 is attached to the side wall of the stand column 2, and the limit is fixedly extruded on the sliding rod 2, namely, the height of the clamping block 23 is kept unchanged;

referring to fig. 1-4, particularly, the two opposite inner groove walls of the first chute 11 are respectively provided with the second chute 12, two opposite outer side walls of the slide bar 2 are respectively and fixedly provided with the slide blocks 21, the two slide blocks 21 are respectively and slidably installed in the corresponding second chute 12, the slide bar 2 is ensured to slide stably and reliably up and down without moving left and right, the rotating block is embedded in the clamping block 23 to be rotatably installed, one end of the threaded shaft 22 is threaded and extends into the clamping block 23 and is vertically and fixedly installed with the rotating block, the spiral motion of the threaded shaft 22 is transmitted to the clamping block 23 to only linearly move, the outer shaft wall of the threaded shaft 22 is fixedly sleeved with the rotating ring 24, the outer diameter of the rotating ring 24 is larger than the outer diameter of the threaded shaft 22, the clamping block 23 is conveniently contacted and rotated, two limiting shafts 25 are vertically and fixedly installed on one side of the stand column 1, the two limiting shafts 25 are respectively and correspondingly and slidably installed in the corresponding limiting holes 13, the limiting shafts 25 are inserted into the limiting holes 13 to be matched, the linear sliding process of the clamping block 23 is enabled to be more smooth and stable, the top end of the clamping block 23 is also ensured to move smoothly, the top end of the clamping block 23 is not rotatably and the end of the graphite rod is not rotatably installed on the stand 1, and the end is fixedly installed on the end of the graphite rod is fixed with the rolling table 41, and the end is fixed by the roller, and the roller is fixed by the roller table 41, and the roller is fixed by the roller and the roller is 43.

Working principle:

firstly, according to the specifications of a graphite electrode and an electrode hole, the position of a clamping block 23 is adjusted (the same or similar specifications can be adjusted without adjustment), and the specific adjustment step is that a threaded shaft 22 is driven to rotate through a rotating ring 24, so that a corresponding rotating block pushes the clamping block 23 to move and adjust along the axial direction of a sliding rod 2, the specific adjustment range can be determined according to the depth of the electrode hole of the graphite electrode, the clamping block 23 can be ensured to be fully abutted against the wall of the hole of the electrode hole, then a knob 31 is rotated, a limit screw 3 is unscrewed, so that the knob 31 is not abutted against the end part of the sliding rod 2 and the side wall of the upright 1 any more, at the moment, the whole sliding rod 2 can slide up and down in a first sliding groove 11, namely in the upright 1, the specific sliding range can be determined according to the wall thickness of the graphite electrode, and the clamping block 23 can be ensured to be fully abutted against the wall of the hole of the motor hole;

and secondly, when the clamping block 23 is fully clamped into and abuts against the inner hole wall thickness of the electrode hole, the upright post is tightly attached to the end part of the graphite electrode, then the reading of the universal meter 41 at the top of the upright post 1 is observed, the ball 43 always rolls on the outer annular wall of the end part of the graphite electrode, and the reading can be read and recorded in real time through the universal meter 41.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a graphite electrode axiality measuring tool, includes stand (1), percentage table (41) are installed on the top of stand (1), a serial communication port, first spout (11) have been run through to stand (1) both sides, sliding installation has slide bar (2) in first spout (11), slide bar (2) one end screw thread installation screw shaft (22), the end rotation installation fixture block (23) of screw shaft (22), the other end and the lateral wall parallel and level design of stand (1) of slide bar (2), and slide bar (2) other end screw thread installation spacing screw (3), the terminal perpendicular fixed mounting of slide bar (2) is kept away from to spacing screw (3) has knob (31), knob (31) are attached at the lateral wall of slide bar 2 tip and stand (1).

2. The tool for measuring the coaxiality of the graphite electrodes according to claim 1, wherein the two opposite inner groove walls of the first sliding groove (11) are respectively provided with a second sliding groove (12), two opposite outer side walls of the sliding rod (2) are respectively fixedly provided with a sliding block (21), and the two sliding blocks (21) are respectively and slidably arranged in the corresponding second sliding grooves (12).

3. The tool for measuring the coaxiality of the graphite electrode according to claim 1, wherein the fixture block (23) is internally embedded with a rotary installation rotating block, and one end of the threaded shaft (22) is threaded to penetrate into the fixture block (23) and is fixedly installed perpendicular to the rotating block.

4. The tool for measuring the coaxiality of the graphite electrode according to claim 1, wherein the rotating ring (24) is fixedly sleeved on the outer shaft wall of the threaded shaft (22), and two limiting shafts (25) are vertically and fixedly arranged on one side, close to the upright post (1), of the clamping block (23).

5. The tool for measuring the coaxiality of the graphite electrode according to claim 4, wherein two limiting holes (13) are formed in one side of the upright post (1), and the two limiting shafts (25) are respectively and adaptively slidably arranged in the corresponding limiting holes (13).

6. The tool for measuring the coaxiality of the graphite electrode according to claim 1, wherein a fixing rod (4) is vertically and fixedly arranged at the top end of the upright (1), a dial indicator (41) is arranged at the tail end of the fixing rod (4), a mounting seat (42) is fixedly arranged at the input end of the dial indicator (41), and a rolling mounting ball (43) is embedded at the bottom end of the mounting seat (42).