Sample preparation equipment for testing heat conductivity coefficient of ceramic fiber module

Abstract

The invention relates to the technical field of equipment for measuring ceramic fiber modules, in particular to sample preparation equipment for testing the heat conductivity coefficient of a ceramic fiber module. The equipment comprises a bracket which comprises supporting legs and a top frame; the telescopic mechanism is connected with the top frame, and the telescopic mechanism can move or be locked along the top frame; the rotary driving mechanism is connected with the telescopic mechanism; the multifunctional clamping mechanism comprises rib rods and an annular base plate, an annular containing groove is formed in the lower end face of the annular base plate, and an annular saw blade or a pressing block is detachably connected into the annular containing groove; the height adjusting mechanisms extending downwards are arranged on the two sides of the top frame; and the cutting mechanism comprises an electric control rail, an electric control sliding block, a third telescopic driving piece and a sawtooth strip. The ceramic fiber module cutting device can quickly complete flat cutting and ring cutting of the ceramic fiber module, can quickly enter ring cutting operation after flat cutting, does not need to move the ceramic fiber module to change the placement position of the surface of the ceramic fiber module, and is high in efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of equipment for measuring ceramic fiber modules, in particular to sample preparation equipment for testing thermal conductivity of ceramic fiber modules. Background Art

[0002] Ceramic fiber modules are new refractory lining products introduced to simplify and speed up kiln construction and improve the integrity of the lining. The physical indicators of high-temperature refractory ceramic fiber modules have certain requirements, such as bulk density, slag ball content, thermal conductivity and rebound rate, etc., which need to meet certain indicators. It is necessary to conduct sampling tests on the prepared ceramic fiber modules. When testing the thermal conductivity, the heated surface of the ceramic fiber module needs to be sawed and flattened, and then the disc is drilled. After the drilled disc is cut out, it is placed in the alumina fiber disc for thickness measurement.

[0003] At present, there is no special equipment that can quickly complete the flat cutting and ring cutting operations of ceramic fiber modules. During the flat cutting process, for the convenience of operation, the test personnel usually place the heated surface sideways and cut it from top to bottom with a wire saw. During the ring cutting process, it is usually necessary to place the flattened surface upwards for operation. The entire operation process is relatively complicated and inefficient. The ceramic fiber module is also prone to bulging during the flat cutting and ring switching, affecting the operation progress. Summary of the invention

[0004] The purpose of the present invention is to provide a sample preparation device for testing the thermal conductivity of a ceramic fiber module, which overcomes the shortcomings of the aforementioned prior art, quickly completes the flat cutting and ring cutting of the ceramic fiber module, and can quickly enter the ring cutting operation after flat cutting, without moving the ceramic fiber module to change the placement position of its surface, and has high efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A sample preparation device for testing thermal conductivity of ceramic fiber modules, comprising:

[0007] A bracket, the bracket comprising legs arranged at intervals and a top frame arranged between the legs;

[0008] A telescopic mechanism, wherein the telescopic mechanism is connected to the top frame, the telescopic mechanism can be moved or locked along the top frame, the telescopic mechanism comprises a top plate, a first telescopic driving member and a bottom plate, the top plate is connected to a fixed end of the first telescopic driving member, and a movable end of the first telescopic driving member is connected to the bottom plate;

[0009] A rotary drive mechanism, the rotary drive mechanism is connected to the telescopic mechanism and is driven by the telescopic mechanism to move up and down;

[0010] A multifunctional clamping mechanism, the multifunctional clamping mechanism comprises a rib rod and an annular base plate, one end of the rib rod is connected to the rotating end of the rotary drive mechanism, and the other end is connected to the annular base plate, the lower end surface of the annular base plate is provided with an annular receiving groove, and an annular saw blade or a pressing block is detachably connected in the annular receiving groove; the pressing block is used to assist in plane sawing to prevent the cut part of the ceramic fiber module from swelling and deformation, and the annular saw blade is used to complete the annular sawing of the plane after flat cutting;

[0011] A height adjustment mechanism, wherein both sides of the top frame are provided with a downwardly extending height adjustment mechanism, and the height adjustment mechanism comprises a second telescopic driving member and an end plate connected to the movable end of the second telescopic driving member;

[0012] The cutting mechanism includes an electric control track, an electric control slider, a third telescopic driving member and a sawtooth bar. Two parallel electric control tracks are connected between the left and right end plates. An electric control slider is provided on each electric control track. A third telescopic driving member is installed on each electric control slider. A sawtooth bar is provided between the two third telescopic driving members. The electric control track and the electric control slider cooperate to realize the displacement and position locking of the electric control slider on the electric control track by electric control.

[0013] When the ceramic fiber module needs to be sampled for measuring thermal conductivity, the ceramic fiber module is first flat-cut, and then the end face of the flat-cut ceramic fiber module is circular-cut. The operation is divided into two parts, and the steps are as follows:

[0014] Flat cutting steps:

[0015] 1.1 The ceramic fiber module is limited between the legs below the top frame of the bracket. The folded surface of the ceramic fiber module with the strongest heat intensity is placed upwards, and the side is limited by the straps;

[0016] 1.2 The annular base plate of the multifunctional clamping mechanism is first connected to the pressing block, the telescopic mechanism moves on the top frame and is locked in a suitable position, and the first telescopic driving member of the telescopic mechanism drives the pressing block to move downward to limit the ceramic fiber module, so as to prevent the cut part of the ceramic fiber module from swelling and deforming during the subsequent cutting process;

[0017] 1.3 The second telescopic driving member of the height adjustment mechanism drives the end plate to descend, and the moving cutting mechanism moves down to a suitable cutting position, so that the sawtooth bar of the cutting mechanism is at a suitable cutting height;

[0018] 1.4 Through the electric control method, the electric control slider is controlled to move on the electric control track, and the two third telescopic driving parts are actuated to drive the sawtooth bar to regularly perform sawing action back and forth, so as to quickly complete the sawing operation of the ceramic fiber module.

[0019] Circumcision steps:

[0020] 2.1 The first telescopic driving member moves upward, the pressing block is removed, the annular base plate is connected to the annular sawtooth piece, and the cutting mechanism and the height adjustment mechanism are reset;

[0021] 2.2 The annular saw blade contacts the ceramic fiber module, and the rotary drive mechanism starts, driving the annular saw blade to cut the ceramic fiber module in an annular manner. At the same time, the telescopic mechanism is gradually pushed down until the annular saw blade cuts the target amount on the ceramic fiber module;

[0022] 2.3 Take out the ceramic fiber module cut out by the ring with the help of external cross-cutting saw teeth and other structures.

[0023] The above-mentioned whole operation steps have good consistency. Compared with the traditional manual sawing and ring cutting operations, the operation efficiency is higher and there is no need to move or change the end face position of the ceramic fiber module.

[0024] Furthermore, the telescopic mechanism also includes a first guide column and a first linear bearing. The first guide column is extended from the upper end surface of the bottom plate to the top plate, and the first linear bearing is arranged on the top plate. One end of the first guide column passes through the first linear bearing, and the first guide column and the first linear bearing cooperate to improve the movement stability of the first telescopic drive member; the height adjustment mechanism also includes a second guide column and a second linear bearing. The second guide column is arranged on the upper end surface of the end plate, and the second linear bearing is arranged on the top frame. The second guide column passes through the second linear bearing upward, and the second guide column and the second linear bearing cooperate to improve the movement stability of the second telescopic drive member.

[0025] Furthermore, a moving channel capable of moving the telescopic mechanism is provided on the top frame of the bracket, and moving guide holes are provided on the top frame plate bodies on both sides of the moving channel. A first threaded rod is provided on the top plate of the telescopic mechanism or the fixed end of the first telescopic driving member. The first threaded rod passes through the moving guide hole and is locked by a first nut. When the first nut is loosened, the telescopic mechanism as a whole can translate along the top frame, and is guided by the cooperation between the first threaded rod and the moving guide hole during the translation process.

[0026] Furthermore, the rotary drive mechanism is a rotary motor, and one end of the rib rod is connected to the rotating shaft of the rotary motor.

[0027] Furthermore, the inner wall and / or outer wall of the annular substrate are connected to a positioning piece locked inside the annular receiving groove, and the inner wall and / or outer wall of the annular substrate are spaced apart with openings connected to the annular receiving groove. The upper end of the annular saw blade extends into the annular receiving groove and is locked by the positioning piece, and the saw teeth at the lower edge of the annular saw blade extend out of the annular receiving groove. The setting of the positioning piece enables convenient replacement and locking of the annular saw blade; the setting of the opening connected to the annular receiving groove can ensure that the cut ceramic fiber module fragments do not block the annular receiving groove, and is beneficial to improving the heat dissipation effect of the annular saw blade in the annular receiving groove.

[0028] Furthermore, a plug-in plate is provided on the upper end surface of the pressing block, and the plug-in plate is plugged into the receiving groove by interference fit. The outer wall of the plug-in plate is coated with a rubber layer, and the rubber layer realizes flexible plug-in and interference fit between the plug-in plate and the receiving groove.

[0029] Furthermore, a U-shaped splint is provided on the movable end of the third telescopic driving member, and a bolt is connected to the U-shaped splint and penetrates into the inner cavity of the U-shaped splint. The end of the serrated bar extends into the U-shaped splint corresponding to its position, and the bolt is locked and abutted against the serrated bar. The setting of the U-shaped splint and the bolt is mainly used to ensure the rapid replacement of the serrated bar. A flexible rubber layer can be provided on the contact surface between the bolt and the serrated bar to protect the rigidity of the rectangular bar.

[0030] Furthermore, the first telescopic driving member is a cylinder, a hydraulic cylinder, or an electric telescopic rod; the second telescopic driving member is a cylinder, a hydraulic cylinder, or an electric telescopic rod; the third telescopic driving member is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0031] Furthermore, the legs of the bracket are all provided with adjustable limit mechanisms extending inward, and one or more adjustable limit mechanisms are provided on the same leg, and the adjustable limit mechanism includes a support plate, a second threaded rod vertically passing through the support plate, a pressure plate located at the lower end of the second threaded rod, and two second nuts located on the second threaded rod, wherein one second nut is located above the support plate, and the other second nut is located above the support plate; a long hole is provided on the support plate, and the second threaded rod passes through the long hole.

[0032] Furthermore, a ceramic fiber module size measuring device is placed between the legs below the top frame, and the ceramic fiber module size measuring device is mainly used in the process of measuring the size parameters and the rebound rate of the ceramic fiber module;

[0033] The ceramic fiber module size measuring device comprises:

[0034] The base can be pre-drawn with the placement position of the ceramic fiber module on it to facilitate the experimenter to initially locate the placement of the ceramic fiber module. Four accommodating holes are centrally symmetrically arranged on the base;

[0035] A limiting plate, wherein the limiting plate is arranged on the base, and four limiting plates are arranged, respectively used for limiting the four sides of the ceramic fiber module. Regardless of whether the placement position of the ceramic fiber module is pre-drawn on the base, it is necessary to correct the placement position of the ceramic fiber module through the limiting plate. The limiting plate comprises a first plate body and a second plate body, wherein the first plate body is located inside the accommodating hole, and the second plate body is located outside the accommodating hole. The first plate body and the second plate body are detachably connected. When it is necessary to measure the length, the second plate bodies of the two limiting plates in the limiting width direction can be removed. After measuring the length of one position, the ceramic fiber module is moved, and then the length of another position is measured. After measuring several sets of data, the average value is calculated, which is more accurate. The method for measuring the width is similar and will not be repeated.

[0036] A plate adjustment mechanism, wherein the plate adjustment mechanism is installed in each of the four receiving holes, the plate adjustment mechanism comprises a lead screw, a nut seat and a rotary drive member, the lead screw is rotatably arranged in the receiving hole, the nut seat is connected to the lead screw and is driven by the rotation of the lead screw to realize movement along the length direction of the receiving hole, one end of the lead screw is connected to the rotary drive member, the limit plate is connected to the nut seat, the rotary drive member may be a motor structure that electrically drives the lead screw to rotate, or may be a rocking wheel that manually drives the lead screw to rotate, the rotary drive member drives the lead screw to rotate, the lead screw drives the nut seat to move forward and backward, and then drives the limit plate to adjust its position so that it is close to or away from the side of the ceramic fiber module;

[0037] A height measuring device, the height measuring device comprises a bracket, a sleeve, a graduated tube and a pressing plate, the bracket is rotatably arranged on a base, a sleeve is supported and connected on the bracket, a graduated tube with a scale is movably sleeved in the sleeve, a pressing plate is arranged below the graduated tube, and the position of the pressing plate corresponds to the position of the middle of the ceramic fiber module; the position of the middle is a range, and any position close to the middle is acceptable, which accounts for about 40% of the area of ​​the upper end surface of the ceramic fiber module; when the ceramic fiber module is not placed on the base, the pressing plate contacts the upper end surface of the base, and at this time, the reading corresponding to the lower edge of the sleeve and the scale line on the graduated tube is 0; when the ceramic fiber module is to be placed on the base, the graduated tube is first lifted up to facilitate the smooth placement of the ceramic fiber module; after the ceramic fiber module is placed and the side surface contacts the corresponding limit plate, the graduated tube is lowered, and the pressing plate contacts the middle of the upper end surface of the ceramic fiber module, and at this time, the lower edge of the sleeve and the graduated tube cooperate to read the thickness value of the ceramic fiber module.

[0038] The pressure plate of the adjustable limit mechanism is pressed on the base of the ceramic fiber module size measuring device. The ceramic fiber module size measuring device is connected to the bracket through the adjustable limit mechanism, and the purpose of assisting the side position limitation of the ceramic fiber module is achieved through the structure on the ceramic fiber module size measuring device. When sampling and testing ceramic fiber modules, many parameters need to be tested and calculated. Through the adjustable limit mechanism, the ceramic fiber module size measuring device can be directly put into the test sample preparation of the thermal conductivity after measuring the parameters such as the height, width, and length of the ceramic fiber module.

[0039] Furthermore, the positions between the limit plates corresponding to the two side surfaces opposite to the ceramic fiber module are correspondingly arranged; between the two corresponding limit plates, at least the middle and upper part of one of the limit plates is a cavity structure, and a distance measuring sensor is embedded in the cavity of the limit plate. The height of the distance measuring sensor is higher than the height of the ceramic fiber module, and the laser emitting end of the distance measuring sensor is flush with the end surface of the limit plate facing the ceramic fiber module. The terminal of the distance measuring sensor is connected to the serial port display board, and the serial port display board can be installed on the end surface of the limit plate away from the ceramic fiber module. When it is necessary to measure the length, the second plate bodies of the two limit plates in the limit width direction can be removed to measure one of the positions. After measuring the length, move the ceramic fiber module and measure the length of another position. It is more accurate to calculate the average value after measuring several sets of data. The method of measuring the width is similar and will not be repeated here. When the length and width are measured, the ceramic fiber module size measuring device needs to be put into the sample preparation equipment for testing the thermal conductivity of the ceramic fiber module. In order not to affect the operation of other structures, the second plate body needs to be removed and another plate body is plugged into the first plate body, which can be called the third plate body. After the third plate body is connected to the first plate body, its height is also lower than the height of the position to be cross-cut. This can not only limit the side of the ceramic limit module, but also does not affect the flat cutting operation of the ceramic fiber module.

[0040] Furthermore, a rotation limiter is provided on the base, and when the bracket rotates to a position where the pressure plate corresponds to the position of the middle of the ceramic fiber module, it stops moving due to the restriction of the rotation limiter. The rotation limiter can be a limit block, or it can be realized by other existing structures; the sleeve of the height measuring device is provided with a scale of a vernier caliper auxiliary scale. At this time, the sleeve needs to be a structure that is partially open on the side, and the scale tube cooperates with the scale on the sleeve, similar to the setting of the main scale and auxiliary scale of a vernier caliper.

[0041] The beneficial effects of the present invention are as follows: compared with the prior art, the sample preparation equipment for testing the thermal conductivity of a ceramic fiber module of the present invention has the following advantages: (1) the flat cutting and circular cutting of the ceramic fiber module can be completed quickly, and the circular cutting operation can be quickly entered after the flat cutting, without moving the ceramic fiber module to change the placement position of its surface, and the efficiency is high; (2) through the adjustable limit mechanism, the ceramic fiber module size measuring device used for measuring size parameters and rebound rate can be used directly for thermal conductivity test sample preparation after measuring the height, width, length and other parameters of the ceramic fiber module. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the structure of Example 1 of the present invention in a flat cut state (the annular substrate is connected to the pressing block);

[0043] Figure 2 This is a schematic diagram of another angle structure of Example 1 of the present invention in a flat cutting state (the annular substrate is connected to the pressing block);

[0044] Figure 3 This is a schematic diagram of the structure of Example 1 of the present invention in a drilling and cutting state (the annular substrate is connected to the annular saw blade);

[0045] Figure 4 This is a schematic diagram of the structure of the annular substrate, annular saw blade, and pressing block after being disassembled according to Example 1 of the present invention;

[0046] Figure 5 This is a schematic diagram of the cutting mechanism structure of Example 1 of the present invention (excluding the electric control track);

[0047] Figure 6 Schematic diagram of the overall structure of Example 2 of the present invention (the second plate body of the limit plate is not removed, and should be removed and replaced with other plates that do not affect the flat cutting operation in actual use);

[0048] Figure 7 This is a schematic diagram of the structure of a ceramic fiber module size measuring device added to Example 2 of the present invention;

[0049] Figure 8 A schematic diagram of the structure of the ceramic fiber module size measuring device added to Example 2 of the present invention after the frame is swung;

[0050] Among them, 1 bracket, 11 legs, 12 top frame, 13 moving channel, 14 moving guide hole, 2 telescopic mechanism, 21 top plate, 22 first telescopic drive member, 23 bottom plate, 24 first guide column, 25 first linear bearing, 26 first threaded rod, 27 first nut, 3 rotation drive mechanism, 4 multifunctional clamping mechanism, 41 rib rod, 42 annular base plate, 44 annular mounting groove, 45 positioning member, 46 opening, 5 pressure block, 51 plug-in board, 6 height adjustment mechanism, 61 second telescopic drive member, 62 end plate, 63 second guide column, 64 second linear bearing, 7 Cutting mechanism, 71 electric control track, 72 electric control slider, 73 third telescopic driving member, 74 sawtooth bar, 75 U-shaped clamp, 8 adjustable limit mechanism, 81 support plate, 82 second threaded rod, 83 pressure plate, 84 second nut, 85 long hole, 9 ceramic fiber module size measuring device, 91 base, 92 accommodating hole, 93 limit plate, 94 lead screw, 95 nut seat, 96 rotating driving member, 97 frame, 98 sleeve, 99 graduation tube, 910 flat plate, 911 distance measuring sensor, 912 serial port display board, 913 rotation limit member, 10 ring saw blade. DETAILED DESCRIPTION

[0051] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0052] Example 1

[0053] like Figure 1-5 In the embodiment shown, a sample preparation device for testing thermal conductivity of a ceramic fiber module includes:

[0054] A support 1, wherein the support 1 comprises support legs 11 arranged at intervals and a top frame 12 arranged between the support legs 11;

[0055] The telescopic mechanism 2 is connected to the top frame 12, and the telescopic mechanism 2 can be moved or locked along the top frame 12. The telescopic mechanism 2 includes a top plate 21, a first telescopic driving member 22, and a bottom plate 23. The top plate 21 is connected to the fixed end of the first telescopic driving member 22, and the movable end of the first telescopic driving member 22 is connected to the bottom plate 23;

[0056] A rotary drive mechanism 3, wherein the rotary drive mechanism 3 is connected to the telescopic mechanism 2 and is driven by the telescopic mechanism 2 to move up and down;

[0057] The multifunctional clamping mechanism 4 comprises a rib rod 41 and an annular base plate 42. One end of the rib rod 41 is connected to the rotating end of the rotary drive mechanism 3, and the other end is connected to the annular base plate 42. The lower end surface of the annular base plate 42 is provided with an annular receiving groove 44. The annular receiving groove 44 is detachably connected with an annular saw blade 10 or a pressing block 5. The pressing block 5 is used to assist in plane sawing to prevent the cut part of the ceramic fiber module from swelling and deformation. The annular saw blade 10 is used to complete the annular sawing of the plane after flat cutting.

[0058] Height adjustment mechanism 6: both sides of the top frame 12 are provided with downwardly extending height adjustment mechanism 6, and the height adjustment mechanism 6 includes a second telescopic driving member 61 and an end plate 62 connected to the movable end of the second telescopic driving member 61;

[0059] The cutting mechanism 7 includes an electric control rail 71, an electric control slider 72, a third telescopic driving member 73 and a sawtooth bar 74. Two parallel electric control rails 71 are connected between the left and right end plates 62. Each electric control rail 71 is provided with an electric control slider 72. Each electric control slider 72 is installed with a third telescopic driving member 73. A sawtooth bar 74 is provided between the two third telescopic driving members 73. The electric control rail 71 and the electric control slider 72 cooperate to realize the displacement and position locking of the electric control slider 72 on the electric control rail 71 by electric control.

[0060] When the ceramic fiber module needs to be sampled for measuring thermal conductivity, the ceramic fiber module is first flat-cut, and then the end face of the flat-cut ceramic fiber module is circular-cut. The operation is divided into two parts, and the steps are as follows:

[0061] Flat cutting steps:

[0062] 1.1 The ceramic fiber module is limited between the legs 11 below the top frame 12 of the bracket 1, and the folded surface of the ceramic fiber module with the strongest heat intensity is placed upward, and the side is limited by the position of the strap;

[0063] 1.2 The annular base plate 42 of the multifunctional clamping mechanism 4 is first connected to the pressing block 5, the telescopic mechanism 2 moves on the top frame 12 and is locked in a suitable position, and the first telescopic driving member 22 of the telescopic mechanism 2 drives the pressing block 5 to move downward to limit the ceramic fiber module, so as to prevent the cut part of the ceramic fiber module from swelling and deforming during the subsequent cutting process;

[0064] 1.3 The second telescopic driving member 61 of the height adjustment mechanism 6 drives the end plate 62 to descend, and the movable cutting mechanism 7 moves down to a suitable cutting position, so that the sawtooth bar 74 of the cutting mechanism 7 is located at a suitable cutting height;

[0065] 1.4 By means of electric control, the electric control slider 72 is controlled to move on the electric control track 71, and the two third telescopic driving members 73 are actuated to drive the sawtooth bar 74 to regularly perform sawing action back and forth, thereby quickly completing the sawing operation of the ceramic fiber module.

[0066] Circumcision steps:

[0067] 2.1 The first telescopic driving member 22 moves upward, the pressing block 5 is removed, the annular base plate 42 is connected to the annular sawtooth piece, and the cutting mechanism 7 and the height adjustment mechanism 6 are reset;

[0068] 2.2 The annular saw blade 10 contacts the ceramic fiber module, and the rotary drive mechanism 3 is started, driving the annular saw blade 10 to perform circular cutting on the ceramic fiber module. At the same time, the telescopic mechanism 2 is gradually pushed down until the annular saw blade 10 cuts the target amount on the ceramic fiber module;

[0069] 2.3 Take out the ceramic fiber module cut out by the ring with the help of external cross-cutting saw teeth and other structures.

[0070] The above-mentioned whole operation steps have good consistency. Compared with the traditional manual sawing and ring cutting operations, the operation efficiency is higher and there is no need to move or change the end face position of the ceramic fiber module.

[0071] In this embodiment, the telescopic mechanism 2 also includes a first guide column 24 and a first linear bearing 25. The first guide column 24 is extended from the upper end surface of the bottom plate 23 to the top plate 21. The first linear bearing 25 is arranged on the top plate 21. One end of the first guide column 24 passes through the first linear bearing 25. The first guide column 24 and the first linear bearing 25 cooperate to improve the movement stability of the first telescopic drive member 22. The height adjustment mechanism 6 also includes a second guide column 63 and a second linear bearing 64. The upper end surface of the end plate 62 is provided with a second guide column 63. The top frame 12 is provided with a second linear bearing 64. The second guide column 63 passes through the second linear bearing 64 upward. The second guide column 63 and the second linear bearing 64 cooperate to improve the movement stability of the second telescopic drive member 61.

[0072] In this embodiment, a moving channel 13 capable of moving the telescopic mechanism 2 is provided on the top frame 12 of the bracket 1, and moving guide holes 14 are provided on the top frame 12 plate body on both sides of the moving channel 13. A first threaded rod 26 is provided on the fixed end of the top plate 21 of the telescopic mechanism 2 or the first telescopic driving member 22. The first threaded rod 26 passes through the moving guide hole 14 and is locked by the first nut 27. When the first nut 27 is loosened, the telescopic mechanism 2 as a whole can translate along the top frame 12, and is guided by the cooperation between the first threaded rod 26 and the moving guide hole 14 during the translation process.

[0073] In this embodiment, the rotary drive mechanism 3 is a rotary motor, and one end of the rib rod 41 is connected to the rotating shaft of the rotary motor.

[0074] In this embodiment, the inner wall and / or outer wall of the annular substrate 42 are connected to a positioning piece 45 locked inside the annular receiving groove 44. The positioning piece 45 can be a bolt. The inner wall and / or outer wall of the annular substrate 42 are spaced apart with openings 46 connected to the annular receiving groove 44. The upper end of the annular saw blade 10 extends into the annular receiving groove 44 and is locked by the positioning piece 45. The saw teeth at the lower edge of the annular saw blade 10 extend out of the annular receiving groove 44. The setting of the positioning piece 45 realizes the convenient replacement and locking of the annular saw blade 10. The setting of the opening 46 connected to the annular receiving groove 44 can ensure that the cut ceramic fiber module fragments do not block the annular receiving groove 44, and is beneficial to improving the heat dissipation effect of the annular saw blade 10 in the annular receiving groove 44.

[0075] In this embodiment, a plug-in plate 51 is provided on the upper end surface of the pressure block 5, and the plug-in plate 51 is plugged into the annular receiving groove 44 by interference fit. The outer wall of the plug-in plate 51 is covered with a rubber layer, and flexible plug-in and interference fit between the plug-in plate 51 and the annular receiving groove 44 are achieved through the rubber layer.

[0076] In this embodiment, a U-shaped splint 75 is provided on the movable end of the third telescopic driving member 73, and a bolt that penetrates into the inner cavity of the U-shaped splint 75 is connected to the U-shaped splint 75. The end of the serrated bar 74 extends into the U-shaped splint 75 corresponding to its position, and the bolt is locked and abutted against the serrated bar 74. The arrangement of the U-shaped splint 75 and the bolt is mainly used to ensure the rapid replacement of the serrated bar 74. A flexible rubber layer can be provided on the contact surface between the bolt and the serrated bar 74 to protect the rigidity of the serrated bar.

[0077] In this embodiment, the first telescopic driving member 22 is a cylinder; the second telescopic driving member 61 is a cylinder; and the third telescopic driving member 73 is a cylinder.

[0078] Example 2

[0079] Embodiment 2 is substantially the same as Embodiment 1, except that:

[0080] like Figure 6-8 As shown, in this embodiment, an adjustable limit mechanism 8 is provided on the legs 11 of the bracket 1 extending inward, and one or more adjustable limit mechanisms 8 are provided on the same leg 11, and the adjustable limit mechanism 8 includes a support plate 81, a second threaded rod 82 vertically passing through the support plate 81, a pressure plate 83 located at the lower end of the second threaded rod 82, and two second nuts 84 located on the second threaded rod 82, wherein one of the second nuts 84 is located above the support plate 81, and the other second nut 84 is located above the support plate 81; a long hole 85 is provided on the support plate 81, and the second threaded rod 82 passes through the long hole 85.

[0081] In this embodiment, a ceramic fiber module size measuring device 9 is placed between the legs 11 below the top frame 12. The ceramic fiber module size measuring device 9 is mainly used in the process of measuring the size parameters and the rebound rate of the ceramic fiber module.

[0082] The ceramic fiber module size measuring device 9 comprises:

[0083] A base 91, on which the placement position of the ceramic fiber module can be pre-drawn to facilitate the experimenter to preliminarily locate the placement of the ceramic fiber module. Four accommodating holes 92 are centrally symmetrically arranged on the base 91;

[0084] The limiting plate 93 is arranged on the base 91. Four limiting plates 93 are arranged, which are respectively used to limit the four sides of the ceramic fiber module. Regardless of whether the placement position of the ceramic fiber module is pre-drawn on the base 91, it is necessary to correct the placement position of the ceramic fiber module through the limiting plate 93. The limiting plate 93 includes a first plate body and a second plate body. The first plate body is located inside the accommodating hole 92, and the second plate body is located outside the accommodating hole 92. The first plate body and the second plate body are detachably connected. When it is necessary to measure the length, the second plate bodies of the two limiting plates 93 in the limiting width direction can be removed. After measuring the length of one position, the ceramic fiber module is moved, and then the length of another position is measured. After measuring several sets of data, the average value is calculated, which is more accurate; the method for measuring the width is similar and will not be repeated;

[0085] The plate adjustment mechanism is installed in each of the four receiving holes 92. The plate adjustment mechanism includes a lead screw 94, a nut seat 95 and a rotary drive member 96. The lead screw 94 is rotatably arranged in the receiving hole 92. The nut seat 95 is connected to the lead screw 94 and is driven by the rotation of the lead screw 94 to realize movement along the length direction of the receiving hole 92. One end of the lead screw 94 is connected to the rotary drive member 96. The limit plate 93 is connected to the nut seat 95. The rotary drive member 96 can be a motor structure that electrically drives the lead screw 94 to rotate, or it can be a rocking wheel that manually drives the lead screw 94 to rotate. The rotary drive member 96 drives the lead screw 94 to rotate, and the lead screw 94 drives the nut seat 95 to move back and forth, thereby driving the limit plate 93 to adjust its position so that it is close to or away from the side of the ceramic fiber module.

[0086] A height measuring device, the height measuring device includes a frame 97, a sleeve 98, a graduated tube 99 and a flat plate 910. The frame 97 is rotatably arranged on the base 91. After the measurement work is completed, the frame 97 can be turned to one side without affecting other operations. The frame 97 is supported and connected with a sleeve 98, and a graduated tube 99 with a scale is movably sleeved in the sleeve 98. A flat plate 910 is arranged below the graduated tube 99. The position of the flat plate 910 corresponds to the position of the middle of the ceramic fiber module; the position of the middle is a range, and the position close to the middle is all OK, which accounts for about 10% of the upper end surface of the ceramic fiber module. When the ceramic fiber module is not placed on the base 91, the flat plate 910 contacts the upper end surface of the base 91. At this time, the reading corresponding to the lower edge of the sleeve 98 and the scale line on the scale tube 99 is 0. When the ceramic fiber module is to be placed on the base 91, the scale tube 99 is first lifted up to facilitate the smooth placement of the ceramic fiber module. After the ceramic fiber module is placed and the side is in contact with the corresponding limit plate 93, the scale tube 99 is lowered, and the flat plate 910 contacts the middle part of the upper end surface of the ceramic fiber module. At this time, the lower edge of the sleeve 98 and the scale tube 99 cooperate to read the thickness value of the ceramic fiber module.

[0087] The pressing plate 83 of the adjustable limiting mechanism 8 is pressed on the base 91 of the ceramic fiber module size measuring device 9. The ceramic fiber module size measuring device 9 is connected to the frame 97 through the adjustable limiting mechanism 8. The purpose of assisting the side position limitation of the ceramic fiber module is achieved through the structure on the ceramic fiber module size measuring device 9. When sampling and testing ceramic fiber modules, many parameters need to be tested and calculated. Through the adjustable limiting mechanism 8, the ceramic fiber module size measuring device 9 can be directly put into the test sample preparation of the thermal conductivity after measuring the parameters such as the height, width, and length of the ceramic fiber module.

[0088] In this embodiment, the positions between the limit plates 93 corresponding to the two side surfaces opposite to the ceramic fiber module are correspondingly arranged; between the two corresponding limit plates 93, at least the middle and upper part of one of the limit plates 93 is a cavity structure, and a distance sensor 911 is embedded in the cavity of the limit plate 93. The height of the distance sensor 911 is higher than the height of the ceramic fiber module. The laser emitting end of the distance sensor 911 is flush with the end surface of the limit plate 93 facing the ceramic fiber module. The terminal of the distance sensor 911 is connected to the serial port display board 912. The serial port display board 912 can be installed on the end surface of the limit plate 93 away from the ceramic fiber module. When the length needs to be measured, the two limit plates 93 in the width direction of the limit can be The second plate body is removed, and after measuring the length of one position, the ceramic fiber module is moved, and the length of another position is measured. After measuring several sets of data, the average value is obtained, which is more accurate; the method of measuring the width is similar and will not be repeated; when the length and width are measured, the ceramic fiber module size measuring device needs to be put into the sample preparation equipment for testing the thermal conductivity of the ceramic fiber module for use, in order not to affect the operation of other structures, the second plate body needs to be removed, and another plate body is plugged into the first plate body, which can be called the third plate body. After the third plate body is connected to the first plate body, its height is also lower than the height of the position to be cross-cut, which can not only limit the side of the ceramic limit module, but also does not affect the flat cutting operation of the ceramic fiber module.

[0089] In this embodiment, a rotation limiter 913 is provided on the base 91. When the frame 97 rotates to the position of the flat plate 910 corresponding to the position of the middle of the ceramic fiber module, it stops moving due to the restriction of the rotation limiter 913. The rotation limiter 913 can be a limit block or can be implemented through other existing structures.

[0090] In some embodiments, the sleeve 98 of the height measuring device is provided with a scale of a vernier caliper. In this case, the sleeve 98 needs to be a structure that is partially open on the side, and the scale tube 99 cooperates with the scale on the sleeve 98, similar to the setting of the main scale and the auxiliary scale of a vernier caliper.

[0091] The above-mentioned specific implementations are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific implementations. Any appropriate changes or modifications made to them by ordinary technicians in the technical field that conform to the claims of the present invention shall fall within the patent protection scope of the present invention.

Claims

1. A sample preparation device for testing thermal conductivity of ceramic fiber modules, characterized in that: include: A bracket, the bracket comprising legs arranged at intervals and a top frame arranged between the legs; A telescopic mechanism, wherein the telescopic mechanism is connected to the top frame, the telescopic mechanism can be moved or locked along the top frame, the telescopic mechanism comprises a top plate, a first telescopic driving member and a bottom plate, the top plate is connected to a fixed end of the first telescopic driving member, and a movable end of the first telescopic driving member is connected to the bottom plate; A rotary drive mechanism, the rotary drive mechanism is connected to the telescopic mechanism and is driven by the telescopic mechanism to move up and down; A multifunctional clamping mechanism, the multifunctional clamping mechanism comprises a rib rod and an annular base plate, one end of the rib rod is connected to the rotating end of the rotary drive mechanism, and the other end is connected to the annular base plate, an annular receiving groove is provided on the lower end surface of the annular base plate, and an annular saw blade or a pressing block is detachably connected in the annular receiving groove; A height adjustment mechanism, wherein both sides of the top frame are provided with a downwardly extending height adjustment mechanism, and the height adjustment mechanism comprises a second telescopic driving member and an end plate connected to the movable end of the second telescopic driving member; The cutting mechanism includes an electric control track, an electric control slider, a third telescopic driving member and a sawtooth bar. Two parallel electric control tracks are connected between the left and right end plates. An electric control slider is provided on each electric control track. A third telescopic driving member is installed on each electric control slider. A sawtooth bar is provided between the two third telescopic driving members. When the ceramic fiber module needs to be sampled for measuring the thermal conductivity, the ceramic fiber module is limited between the legs below the top frame of the bracket, the annular base plate of the multifunctional clamping mechanism is first connected to the pressing block, and the telescopic mechanism drives the pressing block to move downward to limit the ceramic fiber module, and the second telescopic driving member of the height adjustment mechanism drives the end plate to descend, so that the sawtooth bar of the cutting mechanism is at a suitable cutting height, and the electric control slider is controlled to move on the electric control track. Under the driving cooperation of the third telescopic mechanism, the sawtooth bar completes the cutting of the upper layer of the ceramic fiber module; then the first telescopic driving member moves upward to remove the pressing block, the annular base plate is connected to the annular sawtooth piece, the cutting mechanism and the height adjustment mechanism are reset, the first telescopic driving member drives the annular saw blade to move downward, and the rotary driving mechanism drives the annular saw blade to rotate to cooperate with the first telescopic driving member to complete the circular cutting of the ceramic fiber module.

2. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: The telescopic mechanism also includes a first guide column and a first linear bearing. The first guide column is extended from the upper end surface of the bottom plate to the top plate, the first linear bearing is arranged on the top plate, and one end of the first guide column passes through the first linear bearing; the height adjustment mechanism also includes a second guide column and a second linear bearing. The second guide column is arranged on the upper end surface of the end plate, the second linear bearing is arranged on the top frame, and the second guide column passes through the second linear bearing upward.

3. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: A moving channel that enables the telescopic mechanism to move is opened on the top frame of the bracket, and moving guide holes are opened on the top frame plate bodies on both sides of the moving channel. A first threaded rod is arranged on the top plate of the telescopic mechanism or the fixed end of the first telescopic driving member, and the first threaded rod passes through the moving guide hole and is locked by a first nut.

4. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: The inner wall and / or outer wall of the annular base plate are connected with a positioning piece locked inside the annular receiving groove, and the inner wall and / or outer wall of the annular base plate are spaced apart with openings connected to the annular receiving groove. The upper end of the annular saw blade extends into the annular receiving groove and is locked by the positioning piece, and the saw teeth at the lower edge of the annular saw blade extend out of the annular receiving groove.

5. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: The upper end surface of the pressing block is provided with a plug-in plate, and the plug-in plate is plug-in-connected with the annular receiving groove by interference fit.

6. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: A U-shaped clamp is arranged on the movable end of the third telescopic driving member, and a bolt is connected to the U-shaped clamp and penetrates into the inner cavity of the U-shaped clamp. The end of the sawtooth bar extends into the U-shaped clamp corresponding to its position, and the bolt is locked against the sawtooth bar.

7. The sample preparation equipment for testing thermal conductivity of ceramic fiber modules according to claim 1, characterized in that: The legs of the bracket are all provided with an adjustable limiting mechanism extending inward, and the adjustable limiting mechanism includes a support plate, a second threaded rod vertically passing through the support plate, a pressure plate located at the lower end of the second threaded rod, and two second nuts located on the second threaded rod, wherein one second nut is located above the support plate, and the other second nut is located above the support plate; a long hole is provided on the support plate, and the second threaded rod passes through the long hole.

8. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 7, characterized in that: A ceramic fiber module size measuring device is placed between the legs below the top frame, and the ceramic fiber module size measuring device includes: A base, with four receiving holes centrally and symmetrically arranged on the base; A limiting plate, wherein the limiting plate is arranged on the base, and four limiting plates are arranged, respectively used to limit the four sides of the ceramic fiber module, and the limiting plate comprises a first plate body and a second plate body, wherein the first plate body is located inside the accommodating hole, and the second plate body is located outside the accommodating hole, and the first plate body and the second plate body are detachably connected; A plate adjustment mechanism, wherein the plate adjustment mechanism is installed in each of the four receiving holes, and the plate adjustment mechanism comprises a lead screw, a nut seat and a rotary drive member, wherein the lead screw is rotatably arranged in the receiving hole, the nut seat is connected to the lead screw and driven by the rotation of the lead screw to realize movement along the length direction of the receiving hole, one end of the lead screw is connected to the rotary drive member, the limit plate is connected to the nut seat, and the plate adjustment mechanism drives the limit plate to move on the base and thus approach or move away from the side of the ceramic fiber module; A height measuring device, comprising a frame, a sleeve, a graduated tube and a flat plate, wherein the frame is rotatably arranged on a base, a sleeve is supported and connected on the frame, a graduated tube with a scale is movably sleeved in the sleeve, a flat plate is arranged below the graduated tube, and the position of the flat plate corresponds to the position of the middle of the ceramic fiber module; The pressing plate of the adjustable limiting mechanism is pressed on the base of the ceramic fiber module size measuring device.

9. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 8, characterized in that: The positions between the limit plates corresponding to the two side surfaces opposite to the ceramic fiber module are correspondingly arranged; between the two corresponding limit plates, at least the upper and middle part of one of the limit plates is a cavity structure, and a distance measuring sensor is embedded in the cavity of the limit plate. The height of the distance measuring sensor is higher than the height of the ceramic fiber module, the laser emitting end of the distance measuring sensor is flush with the end surface of the limit plate facing the ceramic fiber module, and the terminal of the distance measuring sensor is connected to the serial port display board.

10. A sample preparation device for testing thermal conductivity of ceramic fiber modules according to claim 8, characterized in that: The base is provided with a rotation limiter, and when the frame rotates to a position where the flat plate corresponds to the position of the middle of the ceramic fiber module, it stops moving due to the limiter; the sleeve of the height measuring device is provided with a scale of a vernier caliper.

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