CN215599050U - Novel vacuum dilatometer - Google Patents
Novel vacuum dilatometer Download PDFInfo
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- CN215599050U CN215599050U CN202122071912.6U CN202122071912U CN215599050U CN 215599050 U CN215599050 U CN 215599050U CN 202122071912 U CN202122071912 U CN 202122071912U CN 215599050 U CN215599050 U CN 215599050U
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Abstract
A novel vacuum dilatometer comprises a main control cabinet provided with a control system, wherein a table top of the main control cabinet is provided with a transverse moving mechanism and a mounting bracket, the transverse moving mechanism is provided with a heating furnace, and the transverse moving mechanism drives the heating furnace to move towards or away from the mounting bracket; a water cooling ring is fixedly arranged on one side of the heating furnace close to the mounting plate, a quartz protection tube is connected to the water cooling ring, the quartz protection tube extends into a furnace chamber of the heating furnace along the moving direction of the heating furnace, and the water cooling ring can be externally connected with circulating cooling water; a connecting sleeve is fixedly arranged on one side of the mounting plate close to the heating furnace, the heating furnace can enable the connecting sleeve to be in butt joint with or separated from the water-cooling ring under the driving of the traversing mechanism, and the connecting sleeve is fixedly connected with the water-cooling ring through a hoop when in butt joint; the inner cavity of the connecting sleeve is connected with a quartz support which faces and can be inserted into the quartz protective tube, and the quartz support is connected with a quartz ejector rod. The utility model reduces the occupied laboratory space and reduces the use and the laying of laboratory electric circuits.
Description
Technical Field
The utility model relates to the field of high-temperature expansion performance testing equipment, in particular to a novel vacuum expansion instrument.
Background
The vacuum expansion instrument is used for measuring the high-temperature expansion performance of solid inorganic materials and metal materials, in particular to the test of the thermal expansion coefficients of corundum, refractory materials, shell materials, ceramics, glaze, graphite, glass, carbon and other inorganic materials so as to obtain the linear variables of a sample, such as the linear expansion coefficient, the softening temperature point, the glass-transition temperature and the change curve, thereby providing a necessary test means for detecting the performance of materials and researching and teaching in factories and scientific research institutions.
In the vacuum expansion instrument in the prior art, a test console part and a control system part are separately installed by adopting different cabinet bodies, so that the space occupied by the experimental installation is large, and the electrical part has more laid lines and is messy; the quartz protection tube flange at the sample installation position is locked and fixed by screws, so that the sample installation and sampling are troublesome; moreover, the quartz protection tube needs to be partially removed every time the sample is loaded, and the quartz piece is damaged by a little carelessness, thereby influencing the test process.
Disclosure of Invention
Based on the technical scheme, the utility model provides a novel vacuum expansion instrument, and aims to solve the technical problems that the vacuum expansion instrument in the prior art is large in occupied space, troublesome in sample loading and taking and easy to damage.
In order to achieve the purpose, the utility model provides a novel vacuum dilatometer, which comprises a main control cabinet provided with a control system, wherein a transverse moving mechanism and a mounting bracket are arranged on the table top of the main control cabinet, a heating furnace is arranged on the transverse moving mechanism, a mounting plate is fixedly connected to the mounting bracket, and the transverse moving mechanism is used for driving the heating furnace to move towards or away from the mounting plate.
Be close to on the heating furnace one side fixed mounting of mounting panel has the water-cooling circle, be connected with the quartz protection tube on the water-cooling circle, the quartz protection tube is followed the moving direction of heating furnace extends to in the furnace chamber of heating furnace, but the external recirculated cooling water of water-cooling circle.
Close to on the mounting panel one side fixed mounting of heating furnace has the coupling cover, and the heating furnace can make under the drive of sideslip mechanism the coupling cover with the water-cooling circle butt joint links to each other or parts, the coupling cover with pass through clamp fixed connection during the water-cooling circle butt joint.
Keep away from on the mounting panel one side fixed mounting of heating furnace has the vacuum cover, install the grating sensor through built-in grating sensor fixing base in the vacuum cover, the inner chamber of coupling sleeve is connected with the orientation and can insert quartz support in the quartz protective tube, be connected with the quartz ejector pin on the quartz support.
One end of the quartz ejector rod penetrates through the connecting sleeve and the mounting plate and extends into the vacuum cover, the detection end of the grating sensor is close to and faces the end part of the quartz ejector rod, a sample groove is formed in the quartz support and used for placing a sample which is in contact with the other end of the quartz ejector rod, and when the sample is subjected to thermal expansion in the quartz protective tube, the sample can push the quartz ejector rod to slide towards the grating sensor on the quartz support.
As a further preferable technical scheme of the present invention, the traversing mechanism includes a traversing base, a guide rail, a linear bearing and a trolley, the guide rail is fixedly mounted on the table top of the main control cabinet through the traversing base, the trolley is movably mounted on the guide rail through the linear bearing, the heating furnace is carried by the trolley, and the trolley moves along the guide rail, so as to drive the heating furnace to move.
As a further preferable technical scheme of the present invention, the heating furnace includes a fiber furnace chamber and a furnace shell, the furnace shell covers the outer wall of the fiber furnace chamber, and the interior of the fiber furnace chamber is hollow to form a furnace chamber of the heating furnace.
As a further preferable technical scheme of the utility model, a resistance wire tube sleeved with the inner wall of the fiber hearth is arranged in the furnace chamber, the quartz protection tube is sleeved in the resistance wire tube, the outer wall of the resistance wire tube is provided with a winding groove, and a resistance wire is wound in the winding groove.
As a further preferable technical scheme of the utility model, an end cover is installed on one side of the heating furnace far away from the mounting plate, and the end cover is used for plugging a pipe orifice of the resistance wire pipe far away from the mounting plate.
As a further preferable technical scheme of the utility model, when the connecting sleeve is in butt joint with the water-cooling ring, the quartz protection tube, the vacuum cover, and the inner cavities of the connecting sleeve and the water-cooling ring are communicated to form a closed test cavity, and the connecting sleeve is connected with an air tap for vacuumizing the test cavity or introducing protective gas into the test cavity.
As a further preferable technical scheme of the utility model, a quartz piece mounting sleeve is further arranged in an inner cavity of the connecting sleeve, and the quartz support and the quartz ejector rod are both sleeved in the quartz piece mounting sleeve.
As a further preferable technical scheme of the present invention, the mounting bracket includes a bottom plate and a support plate, the support plate is vertically fixed on the top surface of the main control cabinet through the bottom plate, and the mounting plate is fixedly connected to the upper end of the support plate.
As a further preferable technical scheme of the utility model, a thermocouple is connected to the mounting groove position on the quartz support close to the quartz ejector rod and is used for detecting the test temperature of the sample on the mounting groove position.
As a further preferable technical solution of the present invention, the control system includes a computer, an ammeter and a temperature control instrument, which are installed on the main control machine.
By adopting the technical scheme, the novel vacuum dilatometer can achieve the following beneficial effects:
1) the control system is integrally installed on a main control cabinet of the instrument, so that the laboratory space occupation is reduced, and the use and the laying of laboratory electric circuits are reduced;
2) the quartz protection tube is directly fixed on the heating furnace and moves along with the heating furnace, so that the hidden damage danger is reduced, and the length of equipment is shortened;
3) the sealing part between the connecting sleeve and the water cooling ring is connected by a clamp, and can be fixed and sealed directly by hands, so that the use of a wrench is reduced, and the installation and the sample taking out are more convenient.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of an example of a novel vacuum dilatometer.
FIG. 2 is a schematic diagram of a quartz holder.
FIG. 3 is a schematic structural diagram of a quartz lift pin and a sample.
Fig. 4 is a schematic structural view of the resistance wire tube.
Fig. 5 is a partially enlarged view of the resistance wire tube with respect to the winding groove.
In the figure: 1. the device comprises a main control cabinet, 2, a computer, 3, current, 4, a temperature control instrument, 5, a bottom plate, 6, a base, 7, a supporting plate, 8, a trolley, 9, a vacuum cover, 10, a grating sensor, 11, a grating sensor fixing seat, 12, a quartz ejector rod, 13, a mounting plate, 14, a quartz support, 15, a connecting sleeve, 16, a quartz piece mounting sleeve, 17, an air nozzle, 18, a water cooling ring, 19, a quartz protection tube, 20, a resistance wire tube, 21, a fiber hearth, 22, a sample, 23, a furnace shell, 24 thermocouples, 25, an end cover, 26, a linear bearing, 27, a guide rail, 28 and a sample groove.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for clarity of description only, and are not used to limit the scope of the utility model, and the relative relationship between the terms and the terms is not changed or modified substantially without changing the technical content of the utility model.
As shown in fig. 1 to 3, the present invention provides a novel vacuum dilatometer, which comprises a main control cabinet 1 provided with a control system, wherein a table top of the main control cabinet 1 is provided with a traversing mechanism and a mounting bracket, the traversing mechanism is provided with a heating furnace, the mounting bracket is fixedly connected with a mounting plate 13, and the traversing mechanism is used for driving the heating furnace to move towards or away from the mounting plate 13.
Be close to on the heating furnace one side fixed mounting of mounting panel 13 has water cooling ring 18, be connected with quartz protection tube 19 on the water cooling ring 18, quartz protection tube 19 is followed the moving direction of heating furnace extends to in the furnace chamber of heating furnace, water cooling ring 18 can external recirculated cooling water.
The mounting plate 13 is close to one side fixed mounting of heating furnace has coupling sleeve 15, and the heating furnace can make under the drive of sideslip mechanism coupling sleeve 15 with water-cooling ring 18 butt joint links to each other or part, coupling sleeve 15 with pass through clamp fixed connection when water-cooling ring 18 docks.
Keep away from on the mounting panel 13 one side fixed mounting of heating furnace has vacuum cover 9, install grating sensor 10 through built-in grating sensor fixing base 11 in the vacuum cover 9, the inner chamber of coupling sleeve 15 is connected with the orientation and can inserts quartz support 14 in the quartz protection tube 19, be connected with quartz ejector pin 12 on the quartz support 14.
One end of the quartz ejector rod 12 penetrates through the connecting sleeve 15 and the mounting plate 13 and extends into the vacuum cover 9, the detection end of the grating sensor 10 is close to and faces the end part of the quartz ejector rod 12, a sample slot 28 is arranged on the quartz support 14, the sample slot 28 is used for placing a sample 22 which is in contact with the other end of the quartz ejector rod 12, and when the sample 22 is heated and expanded in the quartz protection tube 19, the quartz ejector rod 12 can be pushed to slide towards the grating sensor 10 on the quartz support 14.
The working principle of the utility model is as follows: before the test, the clamp is manually opened to separate the connecting sleeve 15 from the water-cooling ring 18, the heating furnace is moved to one end far away from the vacuum cover 9 by the traversing mechanism, at the moment, the quartz bracket 14 is positioned outside the quartz protection tube 19, and the sample 22 can be manually placed on the mounting groove position of the quartz ejector rod 12; then, the heating furnace is moved to one end close to the vacuum cover 9 by a traversing mechanism, so that the connecting sleeve 15 is butted with the water-cooling ring 18 and is fixedly connected by a clamp manually, and at the moment, the quartz support 14 with the sample 22 extends into a heating section of the quartz protection tube 19; during the test, the heating furnace heats the quartz protection tube 19, the sample 22 in the quartz protection tube 19 expands under heat, the quartz ejector rod 12 can be pushed to slide towards the grating sensor 10 on the quartz support 14, the grating sensor 10 measures the expansion data, at the moment, circulating cooling water is introduced into the water cooling ring 18, and the high-temperature heat energy is reduced to be conducted to the side of the grating sensor 10 through the heating furnace; after the test is finished, the clamp is manually opened again to separate the connecting sleeve 15 from the water cooling ring 18, the heating furnace is moved to one end far away from the vacuum cover 9 by the traversing mechanism, the sample 22 after the test is finished can be moved out of the quartz protection tube 19, and the next test can be carried out after the sample 22 is taken down.
The transverse moving mechanism comprises a transverse moving base 6, a guide rail 27, a linear bearing 26 and a trolley 8, wherein the guide rail 27 is fixedly installed on the table top of the main control cabinet 1 through the transverse moving base 6, the trolley 8 is movably installed on the guide rail 27 through the linear bearing 26, the heating furnace is borne by the trolley 8, and the trolley 8 moves along the guide rail 27 so as to drive the heating furnace to move.
In one implementation, the heating furnace includes a fiber furnace chamber 21 and a thermocouple 2423, the furnace shell 23 is coated on the outer wall of the fiber furnace chamber 21, and the interior of the fiber furnace chamber 21 is hollow to form a furnace chamber of the heating furnace.
Preferably, a resistance wire tube 20 sleeved with the inner wall of the fiber furnace 21 is arranged in the furnace chamber, the quartz protection tube 19 is sleeved in the resistance wire tube 20, a winding groove is formed in the outer wall of the resistance wire tube 20, and a resistance wire is wound in the winding groove, so that the environment around the sample 22 can be uniformly heated, as shown in fig. 4 and 5.
In another specific implementation, an end cover 25 is installed on a side of the heating furnace away from the mounting plate 13, and the end cover 25 is used for plugging a pipe orifice of the resistance wire pipe 20 away from the mounting plate 13.
Further preferably, when the connecting sleeve 15 is connected with the water-cooling ring 18 in a butt joint manner, the quartz protection tube 19, the vacuum cover 9, and the inner cavities of the connecting sleeve 15 and the water-cooling ring 18 are communicated to form a sealed test cavity, an air tap 17 is connected to the connecting sleeve 15, and the air tap 17 is used for vacuumizing the test cavity or introducing protective gas into the test cavity, wherein the test cavity is vacuumized, so that the sample 22 can be prevented from being oxidized at a high temperature; in addition, the sample 22 can be prevented from being oxidized at high temperature by the protective gas, and the pressure difference between the inside and the outside of the quartz protection tube 19 can be reduced, so that the quartz protection tube 19 is prevented from being damaged due to insufficient strength at high temperature.
In another specific implementation, a quartz piece mounting sleeve 16 is further disposed in the inner cavity of the coupling sleeve 15, and the quartz support 14 and the quartz ejector rod 12 are both sleeved in the quartz piece mounting sleeve 16.
The mounting bracket comprises a bottom plate 5 and a supporting plate 7, the supporting plate 7 is vertically fixed on the table top of the main control cabinet 1 through the bottom plate 5, and the mounting plate 13 is fixedly connected to the upper end of the supporting plate 7.
Preferably, a thermocouple 24 is connected to the mounting slot of the quartz holder 14 near the quartz ram 12, and the thermocouple 24 is used for detecting the test temperature of the sample 22 at the mounting slot.
In specific implementation, the control system comprises a computer 2, a current 3 meter and a temperature control instrument 4 which are arranged on a main control computer, and during experiment, the computer 2 is used for controlling and is matched with the current 3 meter and the temperature control instrument 4 to monitor test parameters.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims.
Claims (10)
1. A novel vacuum dilatometer is characterized by comprising a main control cabinet provided with a control system, wherein a transverse moving mechanism and a mounting bracket are arranged on the table top of the main control cabinet, a heating furnace is arranged on the transverse moving mechanism, a mounting plate is fixedly connected to the mounting bracket, and the transverse moving mechanism is used for driving the heating furnace to move towards or away from the mounting plate;
a water cooling ring is fixedly arranged on one side, close to the mounting plate, of the heating furnace, a quartz protection tube is connected to the water cooling ring, the quartz protection tube extends into a furnace chamber of the heating furnace along the moving direction of the heating furnace, and the water cooling ring can be externally connected with circulating cooling water;
a connecting sleeve is fixedly arranged on one side, close to the heating furnace, of the mounting plate, the heating furnace can enable the connecting sleeve to be in butt joint with or separated from the water cooling ring under the driving of a transverse moving mechanism, and the connecting sleeve is fixedly connected with the water cooling ring through a hoop when in butt joint;
a vacuum cover is fixedly arranged on one side of the mounting plate, which is far away from the heating furnace, a grating sensor is arranged in the vacuum cover through a built-in grating sensor fixing seat, the inner cavity of the connecting sleeve is connected with a quartz support facing to and capable of being inserted into the quartz protective tube, and a quartz ejector rod is connected to the quartz support;
one end of the quartz ejector rod penetrates through the connecting sleeve and the mounting plate and extends into the vacuum cover, the detection end of the grating sensor is close to and faces the end part of the quartz ejector rod, a sample groove is formed in the quartz support and used for placing a sample which is in contact with the other end of the quartz ejector rod, and when the sample is subjected to thermal expansion in the quartz protective tube, the sample can push the quartz ejector rod to slide towards the grating sensor on the quartz support.
2. The vacuum dilatometer as claimed in claim 1, wherein said traversing mechanism comprises a traversing base, a guide rail, a linear bearing and a trolley, said guide rail is fixedly mounted on the table-board of said main control cabinet via said traversing base, said trolley is movably mounted on said guide rail via said linear bearing, said heating furnace is carried by said trolley, and said trolley moves along said guide rail, thereby driving said heating furnace to move.
3. The new vacuum dilatometer as claimed in claim 2, wherein said furnace comprises a fiber furnace chamber and a furnace shell, said furnace shell covering the outer wall of said fiber furnace chamber, the interior of said fiber furnace chamber being hollow to form the furnace chamber of the furnace.
4. The novel vacuum dilatometer as claimed in claim 3, wherein a resistance wire tube is provided in said furnace chamber and is connected to the inner wall of said fiber furnace chamber, said quartz protective tube is inserted into said resistance wire tube, a winding groove is provided on the outer wall of said resistance wire tube, and said resistance wire is wound in said winding groove.
5. The novel vacuum dilatometer as claimed in claim 4, wherein an end cap is mounted on the side of the heating furnace away from the mounting plate, and the end cap is used for plugging the tube opening of the resistance wire tube away from the mounting plate.
6. The novel vacuum dilatometer as claimed in claim 1, wherein when said coupling sleeve is connected with said water-cooling ring in butt joint, the quartz protection tube, the vacuum cover, and the inner cavities of the coupling sleeve and the water-cooling ring are connected to form a closed test chamber, and said coupling sleeve is connected with a gas nozzle for evacuating said test chamber or introducing a protective gas into said test chamber.
7. The novel vacuum dilatometer as claimed in claim 1, wherein a quartz piece mounting sleeve is further provided in the inner cavity of said coupling sleeve, and said quartz holder and said quartz ejector rod are both sleeved in said quartz piece mounting sleeve.
8. The novel vacuum dilatometer as claimed in claim 1, wherein said mounting bracket includes a bottom plate and a supporting plate, said supporting plate is vertically fixed on the top surface of said main control cabinet through said bottom plate, said mounting plate is fixedly connected to the upper end of said supporting plate.
9. The novel vacuum dilatometer as claimed in claim 1, wherein a thermocouple is connected to the mounting slot of the quartz holder near the quartz plunger, and the thermocouple is used to detect the test temperature of the sample at the mounting slot.
10. The new vacuum dilatometer as claimed in any one of claims 1 to 9, wherein said control system comprises a computer, an ammeter and a temperature control instrument mounted on the main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071912.6U CN215599050U (en) | 2021-08-31 | 2021-08-31 | Novel vacuum dilatometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071912.6U CN215599050U (en) | 2021-08-31 | 2021-08-31 | Novel vacuum dilatometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215599050U true CN215599050U (en) | 2022-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122071912.6U Active CN215599050U (en) | 2021-08-31 | 2021-08-31 | Novel vacuum dilatometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215599050U (en) |
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2021
- 2021-08-31 CN CN202122071912.6U patent/CN215599050U/en active Active
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