Refractory castable heating permanent linear change measuring device
By designing a measuring base and gear transmission system, the problem of measurement error caused by dimensional changes in refractory castables after heating was solved, enabling fast and accurate dimensional measurement.
Patent Information
- Application Number
- CN202423040552.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, the dimensional changes of refractory castables after heating make it difficult to find the center point when re-measuring, resulting in large detection errors and time-consuming processes.
A device comprising a measuring base, a scale, a rotating shaft, a main gear, a double-acting lead screw, and a measuring plate was designed. Through gear transmission and the cooperation of the double-acting lead screw, rapid and accurate dimensional measurement of refractory castables before and after heating is achieved.
It enables rapid and accurate measurement of refractory castables before and after heating, reduces measurement errors, and improves measurement efficiency.
Smart Images

Figure CN223597573U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to measuring device technical field, concretely relates to a kind of refractory castable heating permanent line change measuring device. BACKGROUND
[0002] The heating permanent line change refers to the irreversible change amount of the length of refractory (including refractory castable) after heating, which is usually expressed as a percentage of the original length. This indicator reflects the stability and size retention capability of refractory at high temperature.
[0003] During detection, first prepare the sample, then measure and record the size of the sample, heat the sample after measurement is complete, remove the sample after heating is complete, and then re-measure to record the length change rate of the sample before and after heating.
[0004] In the prior art, the sample is first measured and then heated. However, when re-measuring after heating is complete, the overall size of the sample will decrease, resulting in the inability to find the original measurement center point during re-measurement, and direct measurement will result in a large detection error and a time-consuming process to find the center point. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a kind of refractory castable heating permanent line change measuring device, to solve the following technical problems:
[0006] (1) how to quickly measure the sample after heating is complete.
[0007] The purpose of the utility model can be achieved by the following technical solutions:
[0008] A kind of refractory castable heating permanent line change measuring device, comprising a measuring base and refractory castable material;The refractory castable is placed on the measuring base;A scale is provided on the measuring base;The bottom of the measuring base is rotatably connected to a shaft;The end of the shaft away from the measuring base is fixedly connected to a main gear;The main gear is rotatably connected to a connecting column in the middle;The connecting column is rotatably connected to a bidirectional screw rod on the side wall;The bidirectional screw rod is provided with four groups;The end of the bidirectional screw rod away from the connecting column is rotatably connected to the side wall of the measuring base;The bidirectional screw rod is fixedly connected to a transmission gear;The transmission gear is meshingly connected to the main gear;The bidirectional screw rod is screw-connected to a moving plate;The moving plate is fixedly connected to a measuring plate on the top;The measuring plate is fixedly connected to a pointer on the bottom;The pointer is above the scale.
[0009] Further, the measuring plate is provided with two groups, mirror image arrangement; The mobile plate is also fixedly connected with the positioning plate; The positioning plate is provided with two groups, mirror image arrangement; The side wall of the positioning plate is fixedly connected with the positioning spring; The end of the positioning spring away from the positioning plate is fixedly connected with the clamping plate.
[0010] Further, the measuring base side wall is provided with a notch; The driving rod is rotatably connected in the notch; The end of the driving rod away from the measuring base is fixedly connected with the driving gear; The driving gear is meshed with the main gear.
[0011] Further, the refractory castable is D-shaped castable, rectangular parallelepiped arrangement.
[0012] Further, the clamping plate and the measuring plate are both high-temperature-resistant materials.
[0013] Further, the measuring base surface is provided with an aperture; The mobile plate is arranged through the aperture.
[0014] Further, the measuring base bottom is fixedly connected with the supporting leg; The supporting leg is provided with multiple groups; The end of the supporting leg away from the measuring base is fixedly connected with the rubber pad.
[0015] The beneficial effects of the utility model are as follows:
[0016] (1) the utility model discloses a measuring base can be set up, and the refractory castable can be measured quickly, and through the setting of bidirectional screw rod and measuring plate, after the measurement is finished, the refractory castable can be heated directly without moving the measuring plate and bidirectional screw rod, and the refractory castable can be measured conveniently after heating, and the refractory castable does not need to be repositioned when being placed, the measurement efficiency is improved, and the measurement error is reduced. ACCURACY
[0017] The utility model is further described below in combination with the drawings.
[0018] Figure 1 It is the overall structure schematic diagram of measuring base and refractory castable in the utility model;
[0019] Figure 2 It is the overall structure schematic diagram of supporting leg in the utility model;
[0020] Figure 3 It is the overall structure schematic diagram of measuring base in the utility model;
[0021] Figure 4 It is the internal structure schematic diagram of measuring base in the utility model;
[0022] Figure 5 It is the overall structure cross section of measuring base in the utility model.
[0023] Figure 6 Is the overall structure diagram of the main gear and the driving gear in the utility model.
[0024] The figure mark: 1, measurement base; 2, pivot; 3, main gear; 4, connecting column; 5, bidirectional screw rod; 6, transmission gear; 7, moving plate; 8, measurement plate; 9, refractory castable; 10, positioning plate; 11, positioning spring; 12, clamping plate; 13, driving rod; 14, driving gear; 15, support leg; 16, rubber pad; 17, scale table; 18, pointer; 19, notch. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0026] Please refer to the drawings Figures 1-6 The utility model discloses an embodiment of a refractory castable heating permanent line change measurement device, which comprises a measurement base 1 and a refractory castable 9. The refractory castable is placed on the measurement base 1. A scale table 17 is arranged on the measurement base 1. A pivot 2 is rotatably connected to the bottom of the measurement base 1. A main gear 3 is fixedly connected to the end of the pivot 2 away from the measurement base 1. A connecting column 4 is rotatably connected to the sidewall of the main gear 3. A bidirectional screw rod 5 is rotatably connected to the sidewall of the connecting column 4. The bidirectional screw rod 5 is provided with four groups. The end of the bidirectional screw rod 5 away from the connecting column 4 is rotatably connected to the sidewall of the measurement base 1. A transmission gear 6 is fixedly connected to the bidirectional screw rod 5. The transmission gear 6 is meshingly connected to the main gear 3. A moving plate 7 is threadedly connected to the bidirectional screw rod 5. The moving plate 7 is fixedly connected to the top of the measurement plate 8. A pointer 18 is fixedly connected to the bottom of the measurement plate 8. The pointer 18 is located above the scale table 17.
[0027] In operation, the prior art first measures the sample and then heats it, but when the sample is measured again after the heating operation, the overall size of the sample will be smaller, resulting in the center point of the original measurement being difficult to find when re-measuring, which will directly increase the detection error, and it is time-consuming to find the center point again. In order to prevent such events from occurring, first, the refractory cast material 9 is placed on the measurement base 1, then the main gear 3 in the measurement base 1 is driven to rotate, and when rotating, the main gear 3 drives the upper transmission gear 6 to rotate, thereby driving the bidirectional screw rod 5 on the connecting column 4 to rotate, and when rotating, the bidirectional screw rod 5 drives the moving plate 7 to move, and the moving plate 7 and the measurement plate 8 are moved to the refractory cast material 9 and are attached thereto. After attachment, the size of the refractory cast material 9 can be observed by the scale table 17 on the measurement base 1 and the pointer 18 at the bottom of the measurement plate 8. After the measurement is completed, the refractory cast material 9 is placed in the furnace for heating, and after heating, it is taken out and placed on the measurement base 1 again. At this time, the bidirectional screw rod 5 is driven to rotate again, and when rotating, the measurement plate 8 is attached to the refractory cast material 9 again, and at the same time, the size after heating is recorded according to the scale table 17 and the pointer 18. Through the arrangement of the measurement base 1, the refractory cast material 9 can be quickly measured, and through the arrangement of the bidirectional screw rod 5 and the measurement plate 8, the refractory cast material 9 after heating can be conveniently measured without the need for positioning.
[0028] As shown in Figure 3 and Figure 4 , the measurement plate 8 is provided with two groups, which are mirror image arranged; the moving plate 7 is further fixedly connected with a positioning plate 10; the positioning plate 10 is provided with two groups, which are mirror image arranged; the side wall of the positioning plate 10 is fixedly connected with a positioning spring 11; the end of the positioning spring 11 away from the positioning plate 10 is fixedly connected with a clamping plate 12;
[0029] In operation, when the refractory cast material 9 is placed on the measurement base 1, the bidirectional screw rod 5 is driven by the main gear 3, and at the same time, the positioning plate 10 is driven to move by the bidirectional screw rod 5. When the positioning plate 10 moves, it will drive the clamping plate 12 to approach the refractory cast material 9. When approaching, the clamping plate 12 and the positioning spring 11 clamp the two sides of the refractory cast material 9, and at the same time, the other two measurement plates 8 are also attached to the refractory cast material 9 and are measured by the pointer 18. After measurement, the refractory cast material 9 is taken down and heated. When taking down, the clamping plate 12 and the measurement plate 8 do not need to be moved. After heating, the refractory cast material 9 is placed on the measurement base 1 again. At this time, the measurement plate 8 is moved again to measure the size change after heating.
[0030] As shown in Figure 4As shown, the measuring base 1 side wall is provided with a notch; the notch is rotatably connected with a drive rod 13; the drive rod 13 is fixedly connected with a drive gear 14 at the end away from the measuring base 1; the drive gear 14 is meshingly connected with the main gear 3;
[0031] When working, the main gear 3 is provided with upper and lower teeth, the upper teeth are meshingly connected with the transmission gear 6, and the lower teeth are meshingly connected with the drive gear 14; when driving is needed, the staff rotates the drive rod 13, which drives the drive gear 14 to rotate, and then drives the upper measuring plate 8 and the clamping plate 12 to move by the main gear 3.
[0032] As shown in Figure 1 , the refractory castable 9 is a D-shaped castable and is provided in a cuboid shape;
[0033] When working, the measuring base 1 is special for D-shaped castable, and the size of the D-shaped castable is 160mm*40mm*40mm; since the refractory castable 9 is provided in a cuboid shape, when measuring, if the clamping plate 12 on both sides is first combined with the refractory castable 9, and then the clamping plate 12 is continuously moved, the positioning spring 11 will be squeezed, and the gap between the positioning plate 10 and the clamping plate 12 will be compressed in the process of squeezing; since the measuring base 1 is special for D-shaped castable, the overall size will not be greatly different, that is, the distance between the positioning plate 10 and the clamping plate 12 is enough for the two measuring plates 8 on both sides to move to the refractory castable 9 and be combined.
[0034] As shown in Figure 1 , the clamping plate 12 and the measuring plate 8 are both made of high-temperature-resistant material;
[0035] When working, the refractory castable 9 has a high temperature after heating, and the high-temperature-resistant material can prevent the measuring plate 8 and the clamping plate 12 from being damaged by high temperature.
[0036] As shown in Figure 3 , the measuring base 1 is provided with an aperture 19 on the surface; the moving plate 7 is provided through the aperture 19;
[0037] When working, the aperture 19 can facilitate the movement of the moving plate 7 in the measuring base 1.
[0038] As shown in Figure 1 and Figure 2 , the measuring base 1 is fixedly connected with a support leg 15 at the bottom; the support leg 15 is provided with multiple groups; the support leg 15 is fixedly connected with a rubber pad 16 at the end away from the measuring base 1;
[0039] When working, the support leg 15 can play a supporting role, and the rubber pad 16 can prevent the support leg 15 from slipping.
[0040] The utility model discloses a working principle: prior art, first the sample is measured then heating work is carried out again, but when measuring again after heating work ends, the overall size of sample can be smaller, leading to the center point of the original measurement is not found when measuring again, direct measurement can make the detection error become big, and it is time -consuming to find the center point again, in order to prevent such events from happening, first, refractory casting material 9 is placed to the measurement base 1 and is carried out, then the main gear 3 in measurement base 1 is driven to rotate, when rotating, the main gear 3 drives the transmission gear 6 on the upper side to rotate, thereby driving the bidirectional screw rod 5 on the connecting column 4 to rotate, when rotating, the bidirectional screw rod 5 will drive the moving plate 7 to move, and the moving plate 7 and the measuring plate 8 are moved to the refractory casting material 9 and are attached to it, after attaching, the size of refractory casting material 9 can be observed through the scale table 17 on the measurement base 1 and the pointer 18 at the bottom of the measuring plate 8, after measuring, refractory casting material 9 is placed to the furnace and is heated, after heating, it is taken out and placed to the measurement base 1 again, at this time, the bidirectional screw rod 5 is driven to rotate again, when rotating, the measuring plate 8 and refractory casting material 9 will be attached again, and the size after heating is recorded according to the scale table 17 and the pointer 18, through the setting of measurement base 1, refractory casting material 9 can be measured quickly, and through the setting of bidirectional screw rod 5 and measuring plate 8, refractory casting material 9 after heating can be measured conveniently, and positioning is not needed.
[0041] When refractory casting material 9 is placed to the measurement base 1, the main gear 3 drives the bidirectional screw rod 5, and at the same time, the bidirectional screw rod 5 drives the positioning plate 10 to move, when the positioning plate 10 moves, the clamping plate 12 will be driven to move close to refractory casting material 9, when moving close, the clamping plate 12 and the positioning spring 11 are used to clamp the two sides of refractory casting material 9, at the same time, the other two measuring plates 8 are also attached to refractory casting material 9, and the pointer 18 is used to measure, after measuring, refractory casting material 9 is taken down and heated, when taking down, the clamping plate 12 and the measuring plate 8 do not need to be moved, after heating, refractory casting material 9 is placed to the measurement base 1 again, at this time, the measuring plate 8 is moved again to measure, and the distance of moving again is the size change after heating.
[0042] The above embodiment of the utility model has been described in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the embodiment of the utility model. Any equivalent change and improvement within the scope of the utility model application should still belong to the patent coverage range of the utility model.
Claims
1. A refractory castable heating permanent line change measurement device characterized by, The utility model relates to a measuring base (1) and refractory castable (9) are included, the refractory castable is placed on the measuring base (1), the measuring base (1) is opened with scale table (17), the measuring base (1) bottom rotatory connection has the pivot (2), the pivot (2) is fixedly connected with the main gear (3) away from the measuring base (1) one end, the main gear (3) middle rotatory connection has the connecting column (4), the connecting column (4) side wall rotatory connection has the bidirectional screw rod (5), the bidirectional screw rod (5) is provided with four groups, the bidirectional screw rod (5) is rotatory connected with the measuring base (1) side wall away from the connecting column (4) one end, the bidirectional screw rod (5) is fixedly connected with the transmission gear (6), the transmission gear (6) is engagedly connected with the main gear (3), the bidirectional screw rod (5) is screw connection has the moving plate (7), the moving plate (7) top fixedly connected with the measuring plate (8), the measuring plate (8) bottom fixedly connected with the pointer (18), the pointer (18) is located scale table (17) top.
2. A device for measuring the permanent change in heating of a refractory castable according to claim 1, characterized in that The measuring plate (8) is provided with two groups, and is mirror image setting, the moving plate (7) is still fixedly connected with the positioning plate (10), the positioning plate (10) is provided with two groups, and is mirror image setting, the positioning plate (10) side wall fixedly connected with the positioning spring (11), the positioning spring (11) is fixedly connected with the clamping plate (12) away from the positioning plate (10) one end.
3. A device for measuring the permanent change in resistance of a heating element according to claim 2, characterised in that, The measuring base (1) side wall is provided with the notched, the notched rotatory connection has the drive rod (13), the drive rod (13) is fixedly connected with the drive gear (14) away from the measuring base (1) one end, the drive gear (14) is engagedly connected with the main gear (3).
4. A device for measuring the permanent change in resistance of a heating element according to claim 3, wherein The refractory castable (9) is D type castable, and is cuboid setting.
5. A device for measuring the permanent change in resistance of a heating element according to claim 4, wherein The clamping plate (12) and the measuring plate (8) are all high-temperature resistant materials.
6. A device for measuring the permanent change in resistance of a heating element according to claim 5, wherein The measuring base (1) surface is provided with the aperture (19), and the moving plate (7) is set through the aperture (19).
7. A device for measuring the permanent change in resistance of a heating element according to claim 6, characterised in that, The measuring base (1) bottom is fixedly connected with the support leg (15), the support leg (15) is provided with multiple groups, and the support leg (15) is fixedly connected with the rubber pad (16) away from the measuring base (1) one end.