Ladle brick strength detection equipment

Abstract

The utility model provides a steel ladle brick strength detection device which comprises a base, the upper surface of the base is provided with a protruding limiting protruding strip with three faces surrounded, a bottom plate is installed in the space defined by the limiting protruding strip in a sliding mode, a pressing plate capable of ascending and descending is arranged above the bottom plate, and the bottom plate is provided with a first plane parallel to the horizontal plane. The other side, away from the first plane, of the bottom plate is provided with a concave part with the center of the inner bottom plate concave, the pressing plate is provided with a second plane parallel to the horizontal plane, the other side, away from the second plane, of the pressing plate is provided with a protruding part protruding towards the outer portion of the pressing plate, and under different use conditions, the second plane and the protruding part of the pressing plate can face downwards. Therefore, the bricks are pressed; the brick strength detection device is reasonable in design structure and convenient to use, can realize brick strength detection by adopting the pressing plate and the bottom plate which can be quickly overturned up and down and can meet different positions of a brick, has the characteristic of convenience in disassembly and assembly, and can meet the detection requirements of different positions of the brick.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladle brick detection, and in particular relates to a ladle brick strength detection device. Background Art

[0002] The ladle is one of the important equipment in steel production. The working conditions of the ladle are relatively harsh. The lining is subjected to the static pressure of high-temperature molten steel and the severe impact when tapping steel. It is subjected to rapid mechanical scouring, chemical erosion and rapid cooling and heating of the temperature, which causes the lining of the ladle to melt. In severe cases, it causes leakage in the ladle, which brings hidden dangers to production safety. Ladle bricks are used for the inner lining bricks of metallurgical containers. After they are manufactured, the quality of the brick body needs to be tested, especially the strength of the brick body. Most of the brick body strength testing equipment in the existing technology can meet the detection of traditional bricks. However, since the ladle bricks are built inside the cylindrical steel shell, and the inner wall of the cylindrical steel shell has a curvature, in order to improve the quality of masonry and the requirements of later use, the existing ladle bricks also adopt an overall curved structure.

[0003] like Figure 7 As shown, the transformation structure of the steel ladle wall brick in the prior art includes two upper and lower planes a, two front and rear curved side faces b, and two end faces. In order to test the overall strength performance of the brick body, it is necessary not only to apply pressure to the two planes a, but also to apply pressure to the curved side b. In addition, it is also necessary to apply pressure to the brick when the center of the b surface is in a suspended state to obtain sufficient data to test the strength of the brick body. However, there is no method and equipment for the above-mentioned inspection and rapid detection in the prior art. Therefore, a steel ladle brick strength detection device is urgently needed to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a ladle brick strength testing device, which has a reasonable design structure and is easy to use. It adopts a pressure plate and a bottom plate that can be quickly flipped up and down and can meet the different positions of the brick body to realize brick strength testing. It not only has the characteristics of convenient disassembly and assembly, but also can expand the testing needs of different positions of the brick body.

[0005] The technical solution adopted by the utility model is: a steel ladle brick strength testing device, including a base, the upper surface of the base has a raised limiting convex strip surrounded on three sides, a bottom plate is slidably installed inside the space surrounded by the limiting convex strip, a lifting and lowering pressing plate is provided above the bottom plate, the bottom plate has a first plane parallel to the horizontal plane, the other side of the bottom plate away from the first plane has a recessed portion recessed in the center of the inner bottom plate, the pressing plate has a second plane parallel to the horizontal plane, the other side of the pressing plate away from the second plane has a raised portion raised toward the outside of the pressing plate, and under different use conditions, the second plane and the raised portion of the pressing plate can be respectively directed downward to press the bricks.

[0006] The recessed portion is located at the center of the bottom plate, and two sides of the recessed portion form limiting surfaces for limiting the position of the bricks.

[0007] A threaded hole is provided on the upper surface of the base at an inner position of the space formed by the limiting convex strip.

[0008] There are vertical side plates on both sides of the upper surface of the bottom plate, a top plate is installed on the top of the side plate, an oil cylinder is installed on the surface of the top plate, the lower end of the oil cylinder passes through the top plate and is connected to a connecting shaft, a lifting plate is installed on the connecting shaft, and a pressure plate is detachably installed below the lifting plate.

[0009] Mounting seats are fixed on both sides of the lower surface of the lifting plate. The cross-section of the mounting seats is L-shaped. Mounting grooves matching the mounting seats are opened on the edges of the pressing plate. The mounting seats are slidably connected in the mounting grooves, thereby achieving the purpose of horizontal movement of the pressing plate along the mounting seats.

[0010] Vertically arranged guide rods are installed at the four corners between the base and the top plate, and the lifting plate is slidably matched with the guide rods.

[0011] A pressure detector is installed at a position between the lower end of the connecting shaft and the upper surface of the lifting plate. A shaft sleeve is integrally connected to the center of the lifting plate. The inner upper end of the shaft sleeve extends to the outer groove of the connecting shaft, and a gap is formed in the axial direction between the shaft sleeve and the groove of the connecting shaft.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has a reasonable design structure and is easy to use. It adopts a pressure plate and a bottom plate that can be quickly flipped up and down and can meet the different positions of the brick body to realize brick strength detection. It not only has the characteristics of convenient disassembly and assembly, but also can expand the detection needs of different positions of the brick body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a top view of the base of the utility model;

[0016] Figure 3 It is a three-dimensional diagram of the bottom plate of the utility model;

[0017] Figure 4 It is a cross-sectional view of the bottom plate of the utility model;

[0018] Figure 5 It is a three-dimensional diagram of the pressing plate of the utility model;

[0019] Figure 6 It is a cross-sectional view of the pressing plate of the utility model;

[0020] Figure 7 It is a three-dimensional diagram of a ladle brick in the prior art.

[0021] Markings in the figure: 1. base; 2. bottom plate; 201. recessed portion; 202. limiting surface; 203. first plane; 3. side plate; 4. mounting seat; 5. pressure plate; 501. raised portion; 502. mounting groove; 503. second plane; 6. guide rod; 7. lifting plate; 8. pressure detector; 9. bushing; 10. gap; 11. top plate; 12. cylinder; 13. threaded hole; 14. limiting convex strip; 15. connecting shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-6 As shown, a steel ladle brick strength testing device comprises a base 1, the upper surface of the base 1 has a raised limiting convex strip 14 surrounded on three sides, and a bottom plate 2 is slidably installed inside the space surrounded by the limiting convex strip 14, as shown in FIG. Figure 1 and 2 As shown, the limiting convex strip 14 is mainly used to limit the position of the bottom plate 2 and can be used as a reference to enable the bottom plate 2 to be quickly installed on the base 1. That is, when the bottom plate 2 is pushed to the internal root position of the space enclosed by the limiting convex strip 14, the bottom plate 2 is just located directly below the upper pressure plate 5, achieving a quick installation effect.

[0024] A lifting and lowering pressing plate 5 is provided above the bottom plate 2, the bottom plate 2 has a first plane 203 parallel to the horizontal plane, the other side of the bottom plate 2 away from the first plane 203 has a recessed portion 201 recessed in the center of the inner bottom plate 2, the pressing plate 5 has a second plane 503 parallel to the horizontal plane, the other side of the pressing plate 5 away from the second plane 503 has a raised portion 501 raised toward the outside of the pressing plate 5, under different usage conditions, the second plane 503 and the raised portion 501 of the pressing plate 5 can be respectively directed downwards to press the bricks.

[0025] Among them, the strength test of the brick body is mainly to break the brick body by applying pressure to detect the maximum pressure value of the brick body at the moment of breaking. The pressure plate 5 and the bottom plate 2 cooperate with each other to detect several states: one is to detect the state of the upper and lower sides of the brick body being parallel to each other, that is, Figure 7The brick body a surface is parallel to the horizontal plane. In this state, the first plane 203 of the bottom plate 2 faces upward, the second plane 503 of the pressing plate 5 faces downward, and the pressing plate 5 moves downward to pressurize the bricks placed on the bottom plate 2; the second is to detect the state where the upper and lower surfaces of the brick body have curvature, that is, Figure 7 The brick body b is shown in a state facing up or down, in which the recessed portion 201 of the bottom plate 2 faces upward, the raised portion 501 of the pressing plate 5 faces downward, and the pressing plate 5 moves downward to pressurize the brick; the third state is that the recessed portion 201 of the bottom plate 2 faces upward, the second plane 503 of the pressing plate 5 faces downward, and the curved back side of the brick fits tightly with the recessed portion 201; the fourth state is that the first plane 203 of the bottom plate 2 faces upward, the second plane 503 of the pressing plate 5 faces downward, and the curved b side of the brick faces upward, so as to obtain brick body strength test data under different states.

[0026] The recessed portion 201 is located at the center of the bottom plate 2, and the two sides of the recessed portion 201 form limiting surfaces 202 for limiting the position of the bricks. This arrangement is to avoid the problem of brick movement when performing strength testing in the second or third state mentioned above.

[0027] A threaded hole 13 is provided on the upper surface of the base 1 at an inner position of the space formed by the limiting convex strip 14 , and a bolt can be installed at the threaded hole 13 to limit the bottom plate 2 .

[0028] The upper surface of the bottom plate 2 has vertical side plates 3 on both sides, a top plate 11 is installed on the top of the side plate 3, a cylinder 12 is installed on the surface of the top plate 11, the lower end of the cylinder 12 passes through the top plate 11 and is connected to a connecting shaft 15, a lifting plate 7 is installed on the connecting shaft 15, and the pressure plate 5 is detachably installed below the lifting plate 7.

[0029] Specifically, mounting seats 4 are fixed on both sides of the lower surface of the lifting plate 7. The cross-section of the mounting seats 4 is an L-shaped structure. Mounting grooves 502 that match the mounting seats 4 are opened on the edges of the pressing plate 5. The mounting seats 4 are slidably connected in the mounting grooves 502, thereby achieving the purpose of horizontal movement of the pressing plate 5 along the mounting seats 4. The mounting seats 4 are also surrounded on three sides, so that the pressing plate 5 can be turned in direction by quickly pulling, which is convenient to operate.

[0030] Vertically arranged guide rods 6 are installed at the four corners between the base 1 and the top plate 11 , and the lifting plate 7 is slidably matched with the guide rods 6 , so that the lifting plate 7 always has a vertical lifting effect.

[0031] A pressure detector 8 is installed at a position between the lower end of the connecting shaft 15 and the upper surface of the lifting plate 7. A shaft sleeve 9 is integrally connected to the center of the lifting plate 7. The inner upper end of the shaft sleeve 9 extends to the outer slot of the connecting shaft 15, and the slots of the shaft sleeve 9 and the connecting shaft 15 form a gap 10 in the axial direction. When the cylinder 12 is started, it can first drive the lifting plate 7 and the pressing plate 5 to move downward. When the pressing plate 5 contacts the brick body, the connecting shaft 15 can contact the pressure detector 8, so that the real-time pressurized pressure is monitored by the pressure detector 8. When the detection is completed, the telescopic rod of the cylinder 12 moves upward. Since there is an axial gap 10 between the shaft sleeve 9 and the connecting shaft 15, the connecting shaft 15 can be separated from the pressure detector 8, thereby meeting the pressure monitoring effect.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ladle brick strength testing device, characterized in that: It includes a base, the upper surface of the base has a raised limiting convex strip surrounded on three sides, a bottom plate is slidably installed inside the space surrounded by the limiting convex strip, a lifting and lowering pressing plate is provided above the bottom plate, the bottom plate has a first plane parallel to the horizontal plane, the other side of the bottom plate away from the first plane has a recessed portion recessed in the center of the inner bottom plate, the pressing plate has a second plane parallel to the horizontal plane, the other side of the pressing plate away from the second plane has a raised portion raised toward the outside of the pressing plate, and under different usage conditions, the second plane and the raised portion of the pressing plate can be respectively directed downward to press the bricks.

2. The ladle brick strength testing device according to claim 1 is characterized in that: The recessed portion is located at the center of the bottom plate, and two sides of the recessed portion form limiting surfaces for limiting the position of the bricks.

3. The ladle brick strength testing device according to claim 1 is characterized in that: A threaded hole is provided on the upper surface of the base at an inner position of the space formed by the limiting convex strip.

4. The ladle brick strength testing device according to claim 1 is characterized in that: There are vertical side plates on both sides of the upper surface of the bottom plate, a top plate is installed on the top of the side plate, an oil cylinder is installed on the surface of the top plate, the lower end of the oil cylinder passes through the top plate and is connected to a connecting shaft, a lifting plate is installed on the connecting shaft, and the pressure plate is detachably installed below the lifting plate.

5. The ladle brick strength testing device according to claim 4 is characterized in that: Mounting seats are fixed on both sides of the lower surface of the lifting plate. The cross-section of the mounting seats is L-shaped. Mounting grooves matching the mounting seats are opened on the edges of the pressing plate. The mounting seats are slidably connected in the mounting grooves, thereby achieving the purpose of horizontal movement of the pressing plate along the mounting seats.

6. A ladle brick strength testing device according to claim 4, characterized in that: Vertically arranged guide rods are installed at the four corners between the base and the top plate, and the lifting plate is slidably matched with the guide rods.

7. The ladle brick strength testing device according to claim 4 is characterized in that: A pressure detector is installed between the lower end of the connecting shaft and the upper surface of the lifting plate. A shaft sleeve is integrally connected to the center of the lifting plate. The inner upper end of the shaft sleeve extends to the outer groove of the connecting shaft, and a gap is formed in the axial direction between the shaft sleeve and the groove of the connecting shaft.

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