Detection device for graphite product

Abstract

The utility model is applicable to the technical field of detection, and provides a graphite product detection device which comprises a base, and a plurality of supporting rod groups are mounted on the side surface of the base; rotating rods are arranged at two ends of a middle rod of the supporting rod group; the other end of the rotating rod is rotationally connected with the base; the middle rod, the base and the two rotating rods jointly form a parallelogram; a guide column is fixedly connected above the center of the base; the guide columns are slidably connected with pressing plates; the pressing plate is provided with a first limiting device for limiting sliding of the pressing plate; the top ends of the guide columns are rotationally connected with rotating columns; the rotating column is slidably connected with the extension rod; the extension rod is slidably connected with a dial indicator; and the extension rod is provided with a second limiting device for limiting the extension rod to slide, so that flatness detection can be carried out on the end face, with a stud mounting hole, of the graphite electrode, and the problem that the graphite product detection device cannot be mounted after the side edge position of the end face of the stud is occupied is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a detection device for graphite products. Background Art

[0002] Graphite electrodes are primarily made from petroleum coke and needle coke, with coal tar pitch as a binder. They undergo a process of calcination, batching, kneading, pressing, roasting, graphitization, and machining. They are conductors that melt the charge in an electric arc furnace using the release of electrical energy in the form of an arc. During production, the end faces of graphite electrodes must be inspected for flatness to determine if they meet standards. Large graphite electrodes often have cylindrical threaded holes at both ends, and two graphite electrodes are connected using graphite studs.

[0003] Chinese Patent Document Number: CN220418350U, Patent Name: A Graphite Electrode End Surface Flatness Measuring Tool, comprising a collar, a first retaining ring, a clamping mechanism, a mounting block, and a flatness detection mechanism. The first retaining ring is fixedly mounted on the left inner end of the collar, the clamping mechanism is mounted on the right half of the collar, the mounting block is mounted on the collar, and a transfer rod is mounted on each of the upper and lower ends of the mounting block. The transfer rod is inserted into the collar and slidably connected to the collar. The collar is provided with an arc-shaped limit groove for the transfer rod to rotate. The flatness detection mechanism is slidably connected within the mounting block. The utility model has high stability, facilitates detection of the graphite electrode end surface, and provides more accurate detection results.

[0004] Although the above patent can improve the detection accuracy, when fixing the above patent, the side position of the graphite electrode detection end must be in a suspended state. It cannot be used when the graphite motor detection end surface position is not in a suspended state or there is an obstacle on the side. Utility Model Content

[0005] In response to the above-mentioned defects, the purpose of the present utility model is to provide a detection device for graphite products, which can perform flatness detection on the end face of the graphite electrode where the stud mounting hole exists. The cooperation of the support rod group, the pressure plate, and the first limit device can fix the detection device for graphite products in the stud mounting hole at the end face of the graphite electrode, thereby avoiding the problem that the graphite product detection device cannot be installed after the side position of the stud end face is occupied.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a detection device for graphite products, including a base, and several support rod groups are installed on the side of the base; rotating rods are provided at both ends of the middle rod of the support rod group; the middle rod is rotatably connected to one end of the rotating rod, and the other end of the rotating rod is rotatably connected to the base; the middle rod, the base and the two rotating rods together form a parallelogram; the guide column is fixedly connected to the position above the center of the base; the guide column is slidably connected to the pressure plate; the pressure plate is provided with a first limit device to limit the sliding of the pressure plate; the top of the guide column is rotatably connected to the rotating column; the rotating column is slidably connected to the extension rod; the extension rod is slidably connected to the dial indicator; the extension rod is provided with a second limit device to limit the sliding of the extension rod.

[0007] According to the graphite product detection device of the present invention, the first limiting bolt of the first limiting device passes through the pressure plate and is threadedly connected to the base.

[0008] According to the graphite product detection device of the present invention, the rotating column is fixedly connected to a vertical slide rail; the slide rail is provided with a matching slider; and the slider is fixedly connected to the extension rod.

[0009] According to the graphite product detection device of the present invention, the limiting block of the second limiting device is fixedly connected to the extension rod; a threaded through hole is provided on the limiting block; and a matching second limiting bolt is provided on the threaded through hole.

[0010] According to the detection device for graphite products of the present invention, a long strip through hole is provided in the middle position of the extending rod; an I-shaped sliding block is provided in the long strip through hole; a dial indicator is fixedly connected to one side of the I-shaped sliding block, and a fastening bolt is threadedly connected to the other side of the I-shaped sliding block.

[0011] According to the graphite product detection device of the present invention, rubber anti-slip strips are bonded to the outer sides of the intermediate rods.

[0012] The utility model provides a detection device for graphite products, including a base, the arrangement of the base is conducive to the installation of a support rod group; a plurality of support rod groups are installed on the side of the base, and rotating rods are provided at both ends of the middle rod of the support rod group, the middle rod is rotatably connected to one end of the rotating rod, and the other end of the rotating rod is rotatably connected to the base, and the middle rod is used to support the end face, and the two rotating rods can respectively form support for the two ends of the middle rod, and the rotation of the two rotating rods is conducive to adjusting the position of the middle rod, which is convenient for the middle rod to contact and disengage from the inner wall of the cylindrical threaded hole; the middle rod, the base and the two rotating rods together form a parallelogram, and the shape of the parallelogram makes it possible for the middle rod to be parallel to the inner wall of the cylindrical threaded hole when the two rotating rods are rotated to any angle, which is conducive to maintaining the stability of the support. Qualitative characterization: a guide column is fixedly connected to the center of the base, the guide column is slidably connected to the pressure plate, and the pressure plate is provided with a first limit device to limit the sliding of the pressure plate, and the setting of the pressure plate and the first limit device can form a support for the support rod group to prevent the two rotating rods from rotating and causing the support to fail; the top of the guide column is rotatably connected to the rotating column, and the rotating column can enable the extension rod to rotate around the guide column; the rotating column is slidably connected to the extension rod, and the extension rod is slidably connected to the dial indicator, and the extension rod is provided with a second limit device to limit the sliding of the extension rod, and the second limit device can limit the sliding of the extension rod on the rotating column, which is conducive to the dial indicator being located on a specified plane and moving, and is conducive to the change in the dial value when the dial indicator moves on the specified plane, that is, the flatness of the end surface of the graphite electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure of part A;

[0015] Figure 3 This is a schematic structural diagram of the second viewing angle of the present invention;

[0016] Figure 4 This is a schematic structural diagram of the utility model from a third viewing angle;

[0017] Figure 5 This is a schematic diagram of the utility model after installation;

[0018] In the figure: 1-base, 2-rotating rod, 3-middle rod, 4-rubber anti-slip strip, 5-pressure plate, 6-first limiting bolt, 7-guide column, 8-rotating column, 9-slide rail, 10-extension rod, 11-dial indicator, 12-I-shaped sliding block, 13-fastening bolt, 14-threaded hole on the base, 15-limiting block, 16-second limiting bolt, 17-graphite electrode. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] See also Figure 1 、 Figure 3 The utility model provides a detection device for graphite products, which includes a base 1. Four groups of support rods are installed on the side of the base 1. The four groups of support rods are evenly distributed on the side of the cylindrical base 1. Rotating rods 2 are provided at both ends of the middle rod 3 of the support rod group. The middle rod 3 is rotatably connected to one end of the rotating rod 2, and the other end of the rotating rod 2 is rotatably connected to the base 1. The middle rod 3, the base 1 and the two rotating rods 2 together form a parallelogram. The top of the side of the base 1 and the bottom of the side of the base 1 are respectively rotatably connected to one end of the two rotating rods 2. A guide column 7 is fixedly connected to the center upper position of the base 1, and the guide column 7 is slidably connected to a pressure plate 5. The pressure plate 5 is annular, and a slope is provided at the outer side of the bottom of the pressure plate 5. The slope can increase the contact area between the pressure plate 5 and the rotating rod 2. The cylindrical guide column 7 passes through the middle of the pressure plate 5, and the pressure plate 5 can slide up and down to approach or move away from the base 1. The pressure plate 5 is provided with a first limiter to limit the sliding of the pressure plate 5. The first limiter can fix the pressure plate 5 when the pressure plate 5 presses the rotating rod 2, thereby preventing the support rod assembly from moving. The top of the guide column 7 is rotatably connected to the rotating column 8, and the rotating column 8 is slidably connected to the extension rod 10. The extension rod 10 is slidably connected to the dial indicator 11. The extension rod 10 is provided with a second limiter to limit the sliding of the extension rod 10. After the base 1 is fixed inside the cylindrical threaded hole of the graphite electrode 17, the position of the extension rod 10 on the rotating column 8 is adjusted to the appropriate position. The second limiter is used to limit the movement of the extension rod 10 on the rotating column 8. The second limiter can prevent the position of the extension rod 10 on the rotating column 8 from changing.

[0021] See also Figure 1 、 Figure 2 、 Figure 4Furthermore, the first limiting bolt 6 of the first limiting device of the present invention passes through the pressure plate 5 and is threadedly connected to the base 1. The first limiting bolt 6 can be completely screwed into the threaded hole 14 on the base 1. The hexagonal bolt head on the top of the first limiting bolt 6 is used to compress the pressure plate 5, thereby causing the pressure plate 5 to compress the support rod group to prevent the support rod group from moving. The angle between the intermediate rod 3 and the rotating rod 2 is always not equal to a right angle. After the pressure plate 5 is compressed by the first limiting bolt 6, the support rod group provides support for the bottom of the pressure plate 5. The rotating column 8 is fixedly connected to the vertical slide rail 9. The slide rail 9 is provided with a matching slider. The slider is fixedly connected to the extension rod 10. The vertical slide rail 9 and the slider cooperate to facilitate the adjustment of the position of the extension rod 10. The limiting block 15 of the second limiting device is fixedly connected to the extension rod 10. The limiting block 15 is provided with a threaded through hole. The threaded through hole is provided with a matching second limiting bolt 16. Tightening the second limiting bolt 16 causes the second limiting bolt 16 to abut the slide rail 9 to complete the position limitation of the extension rod 10 on the rotating column 8. An elongated through hole is provided in the middle of the extension rod 10, in which an I-shaped sliding block 12 is mounted. A dial indicator 11 is fixedly connected to one side of the I-shaped sliding block 12, and a fastening bolt 13 is threadedly connected to the other side of the I-shaped sliding block 12. The fastening bolt 13 can fasten the I-shaped sliding block 12 to the extension rod 10, thereby limiting the position of the dial indicator 11 on the extension rod 10. The sliding of the I-shaped sliding block 12 on the extension rod 10 can drive the dial indicator 11 to move on a plane, thereby detecting different positions of the end face of the graphite electrode 17. By observing the changes in the reading of the dial indicator 11, the flatness of the end face of the graphite motor can be judged. Rubber anti-slip strips 4 are bonded to the outside of the middle rod 3. The rubber anti-slip strips 4 can increase friction and prevent damage to the inner wall of the threaded mounting hole of the graphite electrode 17. There are also cases where the hole on the end face of the graphite motor is conical. In this case, it is only necessary to replace the rubber anti-slip strip 4 with a trapezoidal rubber anti-slip strip 4 that matches the angle of the conical hole.

[0022] In summary, the utility model provides a detection device for graphite products, including a base, the arrangement of the base is conducive to the installation of a support rod group; a plurality of support rod groups are installed on the side of the base, and rotating rods are provided at both ends of the middle rod of the support rod group, the middle rod is rotatably connected to one end of the rotating rod, and the other end of the rotating rod is rotatably connected to the base, and the middle rod is used to support the end face, and the two rotating rods can respectively form support for the two ends of the middle rod, and the rotation of the two rotating rods is conducive to adjusting the position of the middle rod, which is convenient for the middle rod to contact and disengage from the inner wall of the cylindrical threaded hole; the middle rod, the base and the two rotating rods together form a parallelogram, and the shape of the parallelogram makes it possible for the middle rod to be parallel to the inner wall of the cylindrical threaded hole when the two rotating rods are rotated to any angle, which is conducive to maintaining support Stability; the guide column is fixedly connected to the upper center of the base, and the guide column is slidably connected to the pressure plate, and the pressure plate is provided with a first limit device to limit the sliding of the pressure plate, and the setting of the pressure plate and the first limit device can form a support for the support rod group to prevent the two rotating rods from rotating and causing the support to fail; the top of the guide column is rotatably connected to the rotating column, and the rotating column can enable the extension rod to rotate around the guide column; the rotating column is slidably connected to the extension rod, and the extension rod is slidably connected to the dial indicator, and the extension rod is provided with a second limit device to limit the sliding of the extension rod, and the second limit device can limit the sliding of the extension rod on the rotating column, which is conducive to making the dial indicator move on a specified plane, and is conducive to making the change in the dial value when the dial indicator moves on the specified plane, that is, the flatness of the end surface of the graphite electrode.

[0023] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A graphite product detection device, characterized in that: It includes a base, and several support rod groups are installed on the side of the base; rotating rods are provided at both ends of the middle rod of the support rod group; the middle rod is rotatably connected to one end of the rotating rod, and the other end of the rotating rod is rotatably connected to the base; the middle rod, the base and the two rotating rods together form a parallelogram; the position above the center of the base is fixedly connected to a guide column; the guide column is slidably connected to a pressure plate; the pressure plate is provided with a first limit device to limit the sliding of the pressure plate; the top end of the guide column is rotatably connected to the rotating column; the rotating column is slidably connected to the extension rod; the extension rod is slidably connected to the dial indicator; the extension rod is provided with a second limit device to limit the sliding of the extension rod.

2. The graphite product detection device according to claim 1, characterized in that: The first limiting bolt of the first limiting device passes through the pressing plate and is threadedly connected to the base.

3. The graphite product detection device according to claim 1, characterized in that: The rotating column is fixedly connected to a vertical slide rail; the slide rail is provided with a matching slider; the slider is fixedly connected to the extension rod.

4. The graphite product detection device according to claim 3, characterized in that: The limiting block of the second limiting device is fixedly connected to the extending rod; a threaded through hole is provided on the limiting block; and a matching second limiting bolt is provided in the threaded through hole.

5. The graphite product detection device according to claim 1, characterized in that: A long strip through hole is provided in the middle of the extending rod; an I-shaped sliding block is provided in the long strip through hole; a dial indicator is fixedly connected to one side of the I-shaped sliding block, and a fastening bolt is threadedly connected to the other side of the I-shaped sliding block.

6. The graphite product detection device according to claim 1, characterized in that: The outer sides of the middle rods are all bonded with rubber anti-slip strips.

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