Graphite electrode detection device

Abstract

The invention relates to a graphite electrode detection device, which relates to the technical field of end face detection equipment, and comprises a fixed block, a detection assembly, a driving assembly and a marking assembly, the fixing block is provided with threads used for being in threaded connection with the graphite electrode. The detection assembly is arranged on the fixed block and is used for detecting the flatness of the end surface of the graphite electrode; the driving assembly is arranged on the fixing block and used for driving the detection assembly to rotate in the circumferential direction of the graphite electrode, and in the rotating process, the distance between the detection assembly and the axis of the graphite electrode is gradually increased; the marking assembly is connected with the detection assembly and used for marking the uneven position of the end face of the graphite electrode. The detection and repair convenience of the end face of the graphite electrode can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of end face detection equipment, and in particular to a graphite electrode detection device. Background Art

[0002] Graphite electrodes are mainly used in electric furnace steelmaking. Graphite electrodes are used to introduce current into the furnace. The strong current generates arc discharge through the gas at the end of the graphite electrode, and the heat generated by the arc is used for smelting.

[0003] When in use, the graphite electrodes are connected by threaded joints. In order to ensure a tight connection between the two graphite electrodes, the flatness parameters of the end faces of the graphite electrodes need to be strictly controlled. If there are unevenness on the end faces of the graphite electrodes, the unevenness must be polished smooth with sandpaper or a grinding wheel.

[0004] At present, when factories detect the size of the end faces of graphite electrodes, operators use tools such as angle rulers and calipers for detection. However, this detection method can only detect the size of the detected position of the graphite electrode, and it is difficult to detect the flatness of the entire graphite electrode end face, which brings inconvenience to the end face detection and repair of the graphite electrode. Summary of the invention

[0005] In order to improve the convenience of graphite electrode end surface detection and repair, the present application provides a graphite electrode detection device.

[0006] The present application provides a graphite electrode detection device, which adopts the following technical solution: A graphite electrode detection device is used to detect the flatness of the end face of the graphite electrode, comprising a fixed block, a detection component, a drive component and a marking component; the fixed block is provided with a thread for threaded connection with the graphite electrode; the detection component is arranged on the fixed block and is used to detect the flatness of the end face of the graphite electrode; the drive component is arranged on the fixed block and is used to drive the detection component to rotate along the circumference of the graphite electrode, and during the rotation process, the distance between the detection component and the axis of the graphite electrode gradually increases; the marking component is connected to the detection component and is used to mark the unevenness of the end face of the graphite electrode.

[0007] By adopting the above technical solution, when inspecting the end face of the graphite electrode, the operator coaxially fixes the fixed block and the graphite electrode through a thread, and then drives the detection component to rotate along the circumference of the graphite electrode through the driving component. During the rotation, the distance between the detection component and the axis of the graphite electrode gradually increases. In this process, the detection component detects the flatness of the end face of the graphite electrode, thereby realizing the detection of the flatness of the entire end face of the graphite electrode, and the unevenness existing on the end face of the graphite electrode is marked by the marking component, thereby improving the convenience of detecting and repairing the end face of the graphite electrode.

[0008] Optionally, the detection assembly includes a detection box, a slide plate, a slide rod and a first spring; the detection box is connected to the fixed block; the slide plate is slidably arranged inside the detection box, and the slide plate divides the inside of the detection box into a first cavity and a second cavity; the slide rod is slidably inserted on the detection box, one end of the slide rod is located in the first cavity and fixedly connected to the slide plate; the first spring is located in the second cavity, and its two ends are respectively fixedly connected to the detection box and the slide plate, and the first spring is in a compressed state.

[0009] By adopting the above technical solution, when the end face of the graphite electrode is detected, since the first spring is in a compressed state, under the action of the first spring, one end of the sliding rod is always in contact with the end face of the graphite electrode. When the driving component drives the sliding rod and the end face of the graphite electrode to slide relative to each other, if there are unevenness on the end face of the graphite electrode, relative sliding occurs between the sliding rod and the detection box, thereby realizing the flatness detection of the end face of the graphite electrode.

[0010] Optionally, a spiral guide groove is provided on the fixed block; the driving assembly includes a turntable, a telescopic rod, a limit block and a driving member; the turntable is coaxially rotatably connected to the fixed block; the fixed end of the telescopic rod is fixedly connected to the turntable, and the detection box is fixedly connected to the movable end of the telescopic rod; the limit block is fixedly arranged on the movable end of the telescopic rod, one end of the limit block is located in the spiral guide groove, and is slidably connected to the fixed block; the driving member is connected to the turntable, and the driving member is used to drive the turntable to rotate.

[0011] By adopting the above technical solution, when the end face of the graphite electrode is detected, the turntable is driven to rotate by the driving member, thereby driving the telescopic rod to rotate. During the rotation of the telescopic rod, the limit block slides along the spiral guide groove, so that the movable end of the telescopic rod gradually slides in the direction away from the fixed end of the telescopic rod. The detection box is fixedly arranged at the movable end of the telescopic rod, thereby driving the detection component to rotate along the circumference of the graphite electrode, and during the rotation, the distance between the detection component and the axis of the graphite electrode gradually increases.

[0012] Optionally, the marking component includes a partition and a discharge pipe; a cavity is opened inside the sliding rod, and the partition is slidably arranged in the cavity inside the sliding rod, and divides the cavity inside the sliding rod into a third cavity and a fourth cavity; the third cavity is filled with pigment; the discharge pipe is coaxially arranged inside the sliding rod, one end of the discharge pipe is connected to the third cavity, and the other end is connected to the outside of the sliding rod; an overflow valve is installed on the discharge pipe; an adjustment component is arranged on the detection box, and the adjustment component is used to adjust the partition to slide.

[0013] By adopting the above technical solution, during the inspection of the end face of the graphite electrode, when the slide rod slides through the upper convex inclined surface and the lower concave inclined surface of the end face of the graphite electrode, the partition is slid in the direction close to the discharge pipe by adjusting the component, so that the pigment in the third cavity is compressed and flows out through the discharge pipe to the surface of the graphite electrode, and the upper convex inclined surface and the lower concave inclined surface of the end face of the graphite electrode are marked. As the slide rod slides through the entire end face of the graphite electrode, the uneven parts of the end face of the graphite electrode are automatically marked without the need for manual marking by the operator, thereby improving the convenience of inspection and repair of the end face of the graphite electrode.

[0014] Optionally, the regulating component includes a first connecting tube and a second connecting tube; two ends of the first connecting tube are connected to the first cavity and the fourth cavity respectively; two ends of the second connecting tube are connected to the second cavity and the fourth cavity respectively; liquid is preset in the first cavity, the second cavity and the fourth cavity; a first one-way valve is installed on the first connecting tube, and the liquid in the first cavity can flow into the fourth cavity through the first one-way valve; a second one-way valve is installed on the second connecting tube, and the liquid in the second cavity can flow into the fourth cavity through the second one-way valve; a pressure balancing component is provided on the detection box, and the pressure balancing component is used to balance the pressure changes in the first cavity and the second cavity, so that the first cavity and the second cavity are always filled with liquid; an anti-leakage component is provided on the discharge pipe, and the anti-leakage component is used to prevent the pigment from leaking when the graphite electrode is not detected.

[0015] By adopting the above technical scheme, during the detection of the end face of the graphite electrode, when the slide rod slides through the upper convex inclined surface of the end face of the graphite electrode, as the slide rod and the end face of the graphite electrode slide relative to each other, the slide rod and the slide plate will gradually slide in the direction close to the detection box, thereby gradually reducing the volume inside the second cavity, and the liquid in the second cavity is squeezed and flows into the fourth cavity, thereby causing the partition to slide in the direction close to the discharge pipe; when the slide rod slides through the lower concave inclined surface of the end face of the graphite electrode, as the slide rod and the end face of the graphite electrode slide relative to each other, the slide rod and the slide plate will gradually slide in the direction away from the detection box, thereby gradually reducing the volume inside the first cavity, and the liquid in the first cavity is squeezed and flows into the fourth cavity, thereby causing the partition to slide in the direction close to the discharge pipe.

[0016] The pressure balance component is used to balance the pressure changes in the first cavity and the second cavity, and the first cavity and the second cavity are always filled with liquid, ensuring that when the slide plate and the slide rod slide relative to the detection box, the paint is sprayed out in time to mark the uneven parts of the graphite end face, avoiding missing marks, and further improving the convenience of detecting and repairing the end face of the graphite electrode.

[0017] By providing an anti-leakage component, when the graphite electrode is not being tested, leakage of pigment can be avoided, thereby increasing the service life.

[0018] Optionally, the pressure balancing assembly includes an elastic member, a third connecting tube and a fourth connecting tube; the elastic member is fixedly arranged on the detection box, and the elastic member is a hollow structure; two ends of the third connecting tube are respectively connected to the interior of the elastic member and the first cavity; two ends of the fourth connecting tube are respectively connected to the interior of the elastic member and the second cavity; liquid is preset in the interior of the elastic member, the third connecting tube and the fourth connecting tube; a third one-way valve is installed on the third connecting tube; the liquid in the elastic member can flow into the first cavity through the third one-way valve; a fourth one-way valve is installed on the fourth connecting tube; the liquid in the elastic member can flow into the second cavity through the fourth one-way valve.

[0019] By adopting the above technical solution, during the process of detecting the end face of the graphite electrode, when the slide plate and the slide rod slide relative to the detection box, the elastic member injects liquid into the first cavity and the second cavity under the action of its own elastic force, ensuring that the liquid in the first cavity and the second cavity is always in a full state, avoiding the generation of negative pressure inside the first cavity and the second cavity, thereby affecting the sliding of the slide rod and the slide plate.

[0020] Optionally, one end of the discharge pipe away from the third cavity is in a tapered shape; the anti-leakage component includes a fixing ring, a second spring and a blocking bead; the fixing ring is fixedly arranged inside the discharge pipe; one end of the second spring is fixedly connected to the fixing ring, and the second spring is in a compressed state; the blocking bead is arranged in the discharge pipe and fixedly connected to the second spring.

[0021] By adopting the above technical solution, in the initial state, under the action of the second spring, the blocking bead blocks the discharge pipe. At this time, although the elastic force of the first spring is greater than the starting pressure of the overflow valve, the connecting pipe and the third cavity are in a closed state, so that the volume in the third cavity does not change. Therefore, the liquid in the first cavity and the second cavity cannot flow into the fourth cavity, so that the first spring cannot push the slide plate and the slide rod to slide, thereby preventing the pigment from leaking.

[0022] When the operator fixes the fixed block on the graphite electrode, the end of the slide rod away from the detection box abuts against the graphite electrode. At this time, the blocking bead is squeezed by the end surface of the graphite electrode and continues to compress the second spring into the discharge pipe, so that the discharge pipe is connected with the outside world, so that the first spring can push the slide plate and the slide rod to slide, and the graphite electrode can be detected and marked normally.

[0023] Optionally, the pressure balancing assembly further comprises a protective shell, wherein the protective shell cover is arranged outside the elastic member and is fixedly connected to the detection box.

[0024] By adopting the above technical solution, the protective shell is used to protect the elastic member, thereby preventing the elastic member from being damaged and affecting the use.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: By setting a driving component, when the end face of the graphite electrode is inspected, the inspection component is driven to rotate along the circumference of the graphite electrode, and during the rotation process, the distance between the inspection component and the axis of the graphite electrode gradually increases. In this process, the inspection component inspects the flatness of the end face of the graphite electrode, thereby realizing the inspection of the flatness of the entire end face of the graphite electrode, thereby improving the convenience of inspection and repair of the end face of the graphite electrode; By setting up the marking component, the convex and concave surfaces of the graphite electrode end face are automatically marked without the need for manual marking by operators, thereby improving the convenience of graphite electrode end face detection and repair; By setting the adjustment component, no matter whether the slide rod slides through the convex or concave surface of the graphite electrode end surface, the partition slides toward the discharge pipe, thereby marking both the convex and concave surfaces of the graphite electrode end surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a cross-sectional view of an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged view of the middle A; Figure 4 yes Figure 2 A partial enlarged view of point B in the middle; Figure 5 yes Figure 2 A partial enlarged view of point C in the middle; Figure 6 It is a schematic diagram of marking the upper convex slope and the lower concave slope of the graphite electrode according to an embodiment of the present application.

[0027] Description of reference numerals: 1. Graphite electrode; 2. Fixed block; 21. Spiral guide groove; 3. Detection assembly; 31. Detection box; 311. First cavity; 312. Second cavity; 32. Slide plate; 33. Slide bar; 331. Third cavity; 332. Fourth cavity; 34. First spring; 4. driving assembly; 41. turntable; 42. telescopic rod; 43. limit block; 44. driving member; 5. Marking assembly; 51. Partition plate; 52. Discharge pipe; 521. Overflow valve; 6. Adjustment assembly; 61. First connecting pipe; 611. First one-way valve; 62. Second connecting pipe; 621. Second one-way valve; 7. Pressure balance assembly; 71. Elastic member; 72. Third connecting pipe; 721. Third one-way valve; 73. Fourth connecting pipe; 731. Fourth one-way valve; 74. Protective shell; 8. Anti-leakage assembly; 81. Fixed ring; 82. Second spring; 83. Blocking bead. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 This application is described in further detail.

[0029] The present application embodiment discloses a graphite electrode detection device. Figure 1 and Figure 2A graphite electrode detection device includes a fixed block 2, a detection component 3, a drive component 4 and a marking component 5. A thread for connecting to a tapered thread groove at one end of a graphite electrode 1 is provided at one end of the fixed block 2. The detection component 3 is arranged on the fixed block 2, and the detection component 3 is used to detect the flatness of the end surface of the graphite electrode 1. The drive component 4 is arranged on the fixed block 2, and is used to drive the detection component 3 to rotate around the axis of the graphite electrode 1, and the distance between the detection component 3 and the axis of the graphite electrode 1 gradually increases during the rotation. The marking component 5 is connected to the detection component 3, and the marking component 5 is used to mark the unevenness of the end surface of the graphite electrode 1.

[0030] When inspecting the end face of the graphite electrode 1, the operator fixes the fixing block 2 coaxially with the graphite electrode 1 through a thread, and then uses the driving component 4 to drive the detection component 3 to rotate around the axis of the graphite electrode 1. During the rotation, the detection component 3 inspects the end face of the graphite electrode 1, and then uses the marking component 5 to mark the uneven parts of the end face of the graphite electrode 1, until the driving component 4 drives the detection component 3 to complete the inspection of the entire end face of the graphite electrode 1.

[0031] Reference Figure 1 and Figure 2 The driving assembly 4 includes a turntable 41, a telescopic rod 42, a limit block 43 and a driving member 44. The turntable 41 is coaxially embedded in the end of the fixed block 2 away from the graphite electrode 1, and the turntable 41 is rotatably connected to the fixed block 2. The telescopic rod 42 is arranged on the side of the turntable 41 away from the fixed block 2 along the radial direction of the fixed block 2, and the fixed end of the telescopic rod 42 is fixedly connected to the turntable 41. A spiral guide groove 21 is provided at the end of the fixed block 2 away from the graphite electrode 1. One end of the limit block 43 is fixedly arranged on the movable end of the telescopic rod 42, and the other end is slidably arranged in the spiral guide groove 21. The driving member 44 is a handle, and one end of the handle is fixedly connected to the turntable 41.

[0032] Reference Figure 3 and Figure 4, the detection assembly 3 includes a detection box 31, a slide plate 32, a slide bar 33 and a first spring 34. The detection box 31 is fixedly connected to the movable end of the telescopic rod 42, and the length direction of the detection box 31 is perpendicular to the length direction of the telescopic rod 42. The slide plate 32 is slidably arranged inside the detection box 31, and the slide plate 32 divides the inside of the detection box 31 into a first cavity 311 and a second cavity 312, and the first cavity 311 is located on the side of the slide plate 32 close to the graphite electrode 1. The slide bar 33 is slidably inserted on the detection box 31, and the length direction of the slide bar 33 is arranged parallel to the axis of the graphite electrode 1. One end of the slide bar 33 is located in the first cavity 311 and is fixedly connected to the slide plate 32. The first spring 34 is arranged in the second cavity 312, and the length direction of the first spring 34 is arranged parallel to the length direction of the slide bar 33. The two ends of the first spring 34 are fixedly connected to the slide plate 32 and the detection box 31 respectively, and the first spring 34 is always in a compressed state.

[0033] When inspecting the end face of the graphite electrode 1, after the fixing block 2 is fixedly connected to the graphite electrode 1, the end of the slide bar 33 away from the detection box 31 abuts against the graphite electrode 1. The operator drives the turntable 41 to rotate by turning the handle, and the turntable 41 drives the telescopic rod 42 and the detection box 31 to rotate around the axis of the graphite electrode 1. During the rotation, the limit block 43 slides along the spiral guide groove 21, so that the movable end of the telescopic rod 42 gradually slides in the direction away from the fixed end of the telescopic rod 42, so that the distance between the detection box 31 and the axis of the graphite electrode 1 gradually increases while rotating.

[0034] During the rotation of the detection box 31, the slide rod 33 is always in contact with the end face of the graphite electrode 1 under the action of the first spring 34. During the relative sliding of the slide rod 33 and the end face of the graphite electrode 1, if there are unevenness on the end face of the graphite electrode 1, relative sliding occurs between the slide plate 32 and the slide rod 33 and the detection box 31, thereby realizing the flatness detection of the end face of the graphite electrode 1.

[0035] Reference Figure 2 This embodiment is suitable for places where it is inconvenient to connect the power supply, such as outdoors. The turntable 41 is rotated by manually turning the handle. In other embodiments where the power supply connection is convenient, the driving member 44 is a motor fixedly set on the fixed block 2, and the output shaft of the motor is coaxially fixedly connected to the turntable 41, so that the turntable 41 can be driven to rotate by the motor.

[0036] Reference Figure 3 and Figure 5The marking assembly 5 includes a partition 51 and a discharge pipe 52. A cavity is provided inside the slide bar 33, and the partition 51 is slidably arranged in the cavity inside the slide bar 33. The partition 51 divides the inside of the cavity into a third cavity 331 and a fourth cavity 332. The third cavity 331 is located on the side of the partition 51 close to the graphite electrode 1. The third cavity 331 is filled with pigment. The discharge pipe 52 is coaxially arranged inside the slide bar 33, one end of the discharge pipe 52 is connected to the third cavity 331, and the other end is connected to the outside of the slide bar 33, and the end of the discharge pipe 52 away from the third cavity 331 is in a constricted shape. An overflow valve 521 is fixedly installed on the discharge pipe 52, and the starting pressure of the overflow valve 521 is less than the elastic force of the first spring 34.

[0037] Reference Figure 3 and Figure 4 , the detection box 31 is provided with an adjustment component 6, and the adjustment component 6 includes a first connecting pipe 61 and a second connecting pipe 62. The first connecting pipe 61 is inserted on the sliding rod 33, and the two ends are respectively connected with the first cavity 311 and the fourth cavity 332. One end of the second connecting pipe 62 is inserted on the sliding rod 33, and the other end is inserted on the slide plate 32, and the two ends are respectively connected with the second cavity 312 and the fourth cavity 332. Liquid is preset in the first cavity 311, the second cavity 312 and the fourth cavity 332. A first one-way valve 611 is fixedly installed on the first connecting pipe 61, and the first one-way valve 611 is used to allow the liquid in the first cavity 311 to flow into the fourth cavity 332. A second one-way valve 621 is fixedly installed on the second connecting pipe 62, and the second one-way valve 621 is used to allow the liquid in the second cavity 312 to flow into the fourth cavity 332.

[0038] Reference Figure 3 and Figure 4 , a pressure balance assembly 7 is provided on the detection box 31, and the pressure balance assembly 7 includes an elastic member 71, a third connecting pipe 72, a fourth connecting pipe 73 and a protective shell 74. The elastic member 71 is fixedly arranged outside the detection box 31, and the elastic member 71 is a cavity structure. The two ends of the third connecting pipe 72 are respectively connected to the inside of the elastic member 71 and the first cavity 311. The two ends of the fourth connecting pipe 73 are respectively connected to the inside of the elastic member 71 and the second cavity 312. Liquid is preset in the inside of the elastic member 71, the third connecting pipe 72 and the fourth connecting pipe 73. A third one-way valve 721 is fixedly installed on the third connecting pipe 72, and the third one-way valve 721 is used to allow the liquid inside the elastic member 71 to flow into the first cavity 311. A fourth one-way valve 731 is fixedly installed on the fourth connecting pipe 73, and the fourth one-way valve 731 is used to allow the liquid inside the elastic member 71 to flow into the second cavity 312. The protective shell 74 is disposed on the surface of the elastic member 71 and is fixedly connected to the detection box 31 . The protective shell 74 is used to prevent the elastic member 71 from being damaged.

[0039] When the end face of the graphite electrode 1 is detected, when the slide bar 33 slides through the upper convex inclined surface of the end face of the graphite electrode 1, as the slide bar 33 and the end face of the graphite electrode 1 slide relative to each other, the slide bar 33 and the slide plate 32 will gradually slide toward the detection box 31, so that the volume inside the second cavity 312 gradually decreases, and the volume inside the first cavity 311 gradually increases. The liquid in the second cavity 312 is squeezed through the second connecting tube 62 into the fourth cavity 332, so that the partition plate 51 gradually slides toward the discharge pipe 52. At this time, the volume inside the third cavity 331 gradually decreases, and the pressure gradually increases, so that the pigment inside the third cavity 331 is sprayed through the discharge pipe 52 to the surface of the graphite electrode 1, marking the upper convex inclined surface of the end face of the graphite electrode 1. The volume of the first cavity 311 gradually increases, so that the pressure in the first cavity 311 decreases. Under the elastic force of the elastic member 71 itself, the elastic member 71 contracts, and the liquid inside the elastic member 71 enters the first cavity 311 through the third connecting tube 72, so that the liquid inside the first cavity 311 is always kept full.

[0040] As the detection box 31 continues to rotate, the slide bar 33 slides to the plane of the graphite electrode 1. At this time, the positions of the slide bar 33 and the slide plate 32 relative to the detection box 31 will not change, so no marking will be performed.

[0041] When the slide bar 33 slides through the concave inclined surface of the end face of the graphite electrode 1, as the slide bar 33 and the end face of the graphite electrode 1 slide relative to each other, the slide bar 33 and the slide plate 32 will gradually slide in the direction away from the detection box 31, so that the volume inside the second cavity 312 gradually increases, and the volume inside the first cavity 311 gradually decreases, and the liquid in the first cavity 311 is squeezed through the first connecting tube 61 into the fourth cavity 332, so that the partition plate 51 gradually slides in the direction close to the discharge pipe 52, so that the pigment inside the third cavity 331 is sprayed to the surface of the graphite electrode 1 through the discharge pipe 52, marking the concave inclined surface of the end face of the graphite electrode 1.

[0042] Reference Figure 6 By marking the upper convex bevel and the lower concave bevel of the uneven part of the end surface of the graphite electrode 1, the uneven part existing on the end surface of the graphite electrode 1 is marked.

[0043] The volume of the second cavity 312 gradually increases, so that the pressure in the second cavity 312 decreases. Under the elastic force of the elastic member 71 itself, the elastic member 71 contracts, and the liquid inside the elastic member 71 enters the second cavity 312 through the fourth connecting tube 73, so that the liquid inside the second cavity 312 is always kept full.

[0044] As the detection box 31 rotates, the slide bar 33 slides across the entire end surface of the graphite electrode 1 , and while detecting the end surface of the graphite electrode 1 , marks the uneven parts of the end surface of the graphite electrode 1 .

[0045] Reference Figure 5 , the discharge pipe 52 is provided with an anti-leakage assembly 8, which includes a fixing ring 81, a second spring 82 and a blocking bead 83. The fixing ring 81 is coaxially arranged in the discharge pipe 52 and fixedly connected to the discharge pipe 52. The second spring 82 is coaxially arranged in the discharge pipe 52 and is located on the side of the fixing ring 81 away from the third cavity 331. One end of the second spring 82 is fixedly connected to the fixing ring 81, and the second spring 82 is always in a compressed state. The blocking bead 83 is arranged in the discharge pipe 52, and the blocking bead 83 is fixedly connected to one end of the second spring 82 away from the fixing ring 81.

[0046] In the initial state, since the second spring 82 is always in a compressed state, under the action of the second spring 82, the blocking bead 83 blocks the end of the discharge pipe 52 away from the third cavity 331. At this time, although the elastic force of the first spring 34 is greater than the starting pressure of the relief valve 521, the connecting pipe and the third cavity 331 are in a closed state, so that the volume in the third cavity 331 does not change, and further, the liquid in the first cavity 311 and the second cavity 312 cannot flow into the fourth cavity 332, so that the first spring 34 cannot push the slide plate 32 and the slide rod 33 to slide, thereby preventing the pigment from leaking.

[0047] When the operator fixes the fixed block 2 to the graphite electrode 1, the end of the slide rod 33 away from the detection box 31 abuts against the graphite electrode 1. At this time, the blocking bead 83 is squeezed by the end surface of the graphite electrode 1 to compress the second spring 82 into the discharge pipe 52, so that the discharge pipe 52 is connected with the outside world, so that the slide plate 32 and the slide rod 33 can slide normally.

[0048] The implementation principle of a graphite electrode detection device in the embodiment of the present application is: When inspecting the end face of the graphite electrode 1, the operator coaxially fixes the fixing block 2 with the graphite electrode 1 through a thread. At this time, the end of the sliding rod 33 away from the detection box 31 abuts against the graphite electrode 1, and the blocking bead 83 is squeezed by the end face of the graphite electrode 1 into the discharge pipe 52, so that the discharge pipe 52 is connected with the outside.

[0049] The operator turns the handle so that the turntable 41 drives the telescopic rod 42 to rotate around the axis of the graphite electrode 1. At the same time, the limit block 43 slides along the spiral guide groove 21, so that the movable end of the telescopic rod 42 drives the detection box 31 to rotate around the axis of the graphite electrode 1. At the same time, the distance between the detection box 31 and the axis of the graphite electrode 1 gradually increases until the end of the sliding rod 33 away from the detection box 31 slides across the entire end surface of the graphite electrode 1.

[0050] During the rotation of the detection box 31, the slide rod 33 is always in contact with the end face of the graphite electrode 1 under the action of the first spring 34. During the relative sliding of the slide rod 33 and the end face of the graphite electrode 1, if there are unevenness on the end face of the graphite electrode 1, relative sliding occurs between the slide plate 32 and the slide rod 33 and the detection box 31, thereby realizing the flatness detection of the end face of the graphite electrode 1.

[0051] When the end face of the graphite electrode 1 is detected, when the slide bar 33 slides past the upper convex inclined surface of the end face of the graphite electrode 1, as the slide bar 33 and the end face of the graphite electrode 1 slide relative to each other, the slide bar 33 and the slide plate 32 will gradually slide toward the detection box 31, so that the liquid in the second cavity 312 flows into the fourth cavity 332, pushing the partition plate 51 to slide, compressing the volume in the third cavity 331, so that the pigment in the third cavity 331 is sprayed onto the surface of the graphite electrode 1, marking the upper convex inclined surface of the end face of the graphite electrode 1.

[0052] When the slide bar 33 slides through the concave inclined surface of the end face of the graphite electrode 1, as the slide bar 33 and the end face of the graphite electrode 1 slide relative to each other, the slide bar 33 and the slide plate 32 will gradually slide away from the detection box 31, so that the liquid in the first cavity 311 flows into the fourth cavity 332, pushing the partition plate 51 to slide, compressing the volume in the third cavity 331, so that the pigment in the third cavity 331 is sprayed onto the surface of the graphite electrode 1, marking the concave inclined surface of the end face of the graphite electrode 1.

[0053] When the slide plate 32 and the detection box 31 slide relative to each other, the elastic member 71 injects liquid into the first cavity 311 and the second cavity 312 under its own elastic force, ensuring that the liquid in the first cavity 311 and the second cavity 312 is always filled.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A graphite electrode detection device for detecting the flatness of the end surface of a graphite electrode (1), characterized in that: The invention comprises a fixed block (2), a detection component (3), a driving component (4) and a marking component (5); the fixed block (2) is provided with a thread for threaded connection with the graphite electrode (1); the detection component (3) is arranged on the fixed block (2) and is used to detect the flatness of the end surface of the graphite electrode (1); the driving component (4) is arranged on the fixed block (2) and is used to drive the detection component (3) to rotate along the circumference of the graphite electrode (1), and during the rotation process, the distance between the detection component (3) and the axis of the graphite electrode (1) gradually increases; the marking component (5) is connected to the detection component (3) and is used to mark the unevenness of the end surface of the graphite electrode (1).

2. A graphite electrode detection device according to claim 1, characterized in that: The detection assembly (3) comprises a detection box (31), a slide plate (32), a slide bar (33) and a first spring (34); the detection box (31) is connected to the fixed block (2); the slide plate (32) is slidably arranged inside the detection box (31), and the slide plate (32) divides the inside of the detection box (31) into a first cavity (311) and a second cavity (312); the slide bar (33) is slidably inserted on the detection box (31), one end of the slide bar (33) is located in the first cavity (311) and is fixedly connected to the slide plate (32); the first spring (34) is located in the second cavity (312), and two ends of the slide bar (33) are respectively fixedly connected to the detection box (31) and the slide plate (32), and the first spring (34) is in a compressed state.

3. A graphite electrode detection device according to claim 2, characterized in that: The fixed block (2) is provided with a spiral guide groove (21); the driving assembly (4) comprises a rotating disk (41), a telescopic rod (42), a stop block (43) and a driving member (44); the rotating disk (41) is coaxially rotatably connected to the fixed block (2); the fixed end of the telescopic rod (42) is fixedly connected to the rotating disk (41), and the detection box (31) is fixedly connected to the movable end of the telescopic rod (42); the stop block (43) is fixedly arranged on the movable end of the telescopic rod (42), one end of the stop block (43) is located in the spiral guide groove (21), and is slidably connected to the fixed block (2); the driving member (44) is connected to the rotating disk (41), and the driving member (44) is used to drive the rotating disk (41) to rotate.

4. A graphite electrode detection device according to claim 2, characterized in that: The marking component (5) comprises a partition (51) and a discharge pipe (52); a cavity is provided inside the slide bar (33); the partition (51) is slidably arranged in the cavity inside the slide bar (33) and divides the cavity inside the slide bar (33) into a third cavity (331) and a fourth cavity (332); the third cavity (331) is filled with pigment; the discharge pipe (52) is coaxially arranged inside the slide bar (33); one end of the discharge pipe (52) is connected to the third cavity (331), and the other end is connected to the outside of the slide bar (33); an overflow valve (521) is installed on the discharge pipe (52); an adjustment component (6) is arranged on the detection box (31), and the adjustment component (6) is used to adjust the partition (51) to slide.

5. A graphite electrode detection device according to claim 4, characterized in that: The regulating assembly (6) comprises a first connecting tube (61) and a second connecting tube (62); two ends of the first connecting tube (61) are respectively connected to the first cavity (311) and the fourth cavity (332); two ends of the second connecting tube (62) are respectively connected to the second cavity (312) and the fourth cavity (332); liquid is preset in the first cavity (311), the second cavity (312) and the fourth cavity (332); a first one-way valve (611) is installed on the first connecting tube (61), and the liquid in the first cavity (311) can flow into the fourth cavity (332) through the first one-way valve (611). The second connecting pipe (62) is provided with a second one-way valve (621), and the liquid in the second cavity (312) can flow into the fourth cavity (332) through the second one-way valve (621); the detection box (31) is provided with a pressure balancing component (7), and the pressure balancing component (7) is used to balance the pressure changes in the first cavity (311) and the second cavity (312), so that the first cavity (311) and the second cavity (312) are always filled with liquid; the discharge pipe (52) is provided with an anti-leakage component (8), and the anti-leakage component (8) is used to prevent the pigment from leaking when the graphite electrode (1) is not being detected.

6. A graphite electrode detection device according to claim 5, characterized in that: The pressure balancing assembly (7) comprises an elastic member (71), a third connecting tube (72) and a fourth connecting tube (73); the elastic member (71) is fixedly arranged on the detection box (31), and the elastic member (71) is a cavity structure; two ends of the third connecting tube (72) are respectively connected to the interior of the elastic member (71) and the interior of the first cavity (311); two ends of the fourth connecting tube (73) are respectively connected to the interior of the elastic member (71) and the interior of the second cavity (312); the elastic member (71) Liquid is preset inside, in the third connecting pipe (72) and in the fourth connecting pipe (73); a third one-way valve (721) is installed on the third connecting pipe (72); the liquid in the elastic member (71) can flow into the first cavity (311) through the third one-way valve (721); a fourth one-way valve (731) is installed on the fourth connecting pipe (73); the liquid in the elastic member (71) can flow into the second cavity (312) through the fourth one-way valve (731).

7. A graphite electrode detection device according to claim 6, characterized in that: The end of the discharge pipe (52) away from the third cavity (331) is in a constricted shape; the anti-leakage component (8) comprises a fixing ring (81), a second spring (82) and a blocking bead (83); the fixing ring (81) is fixedly arranged inside the discharge pipe (52); one end of the second spring (82) is fixedly connected to the fixing ring (81), and the second spring (82) is in a compressed state; the blocking bead (83) is arranged in the discharge pipe (52) and is fixedly connected to the second spring (82).

8. A graphite electrode detection device according to claim 6, characterized in that: The pressure balancing assembly (7) further comprises a protective shell (74), wherein the protective shell (74) is disposed outside the elastic member (71) and is fixedly connected to the detection box (31).

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