CN215413162U - Tubular furnace for combustion test of rail transit materials - Google Patents

Abstract

The utility model provides a tubular furnace for a rail transit material combustion test, which comprises a heating pipeline, a quartz boat component and a positioning component, wherein a bearing platform is fixedly arranged in the heating pipeline, a running track is arranged on the bearing platform, a containing groove is also formed in the bearing platform, the quartz boat component comprises a moving block and a pulley block, a pulley block is lapped on the running track, the positioning component comprises a driving screw rod, an inclined wedge block and a positioning block which is lapped on the inclined wedge block in a sliding way, an inclined plane is arranged between the inclined wedge block and the positioning block, the inclined wedge block pushes the positioning block to extend into the running track through the inclined plane, the positioning block can block the positions of the pulley block and the moving block on the running track, a limiting block is controlled to move on the bearing platform relative to the pulley block through the driving screw rod and the inclined wedge block, the heating position of the pulley block in the heating pipeline is controlled, and the positions of a sample block and a heating source are controlled, the processing efficiency of the tube furnace is ensured.

Description

Tubular furnace for combustion test of rail transit materials

Technical Field

The utility model relates to the technical field of gas detection, in particular to a tubular furnace for a rail transit material combustion test.

Background

When the tube furnace is used for heating and burning the rail transit interior material, firstly, the interior material sample is placed into the quartz boat, the quartz boat bears the sample and then pushes the sample into the furnace chamber of the tube furnace, the sample on the quartz boat is heated in the furnace chamber until the material sample reaches the ignition point, combustion sample gas is generated, and then toxic and harmful detection is carried out on the generated gas. In the process of the combustion test, the furnace chamber is of a closed cavity structure, the position of the quartz boat pushed into the furnace chamber cannot be controlled, so that the positions of the quartz boat and the sample relative to a heat source in the furnace chamber cannot be determined, and the quartz boat is difficult to be pushed to the optimal heating position.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: when the tube furnace is used for combustion heating test, the position of the quartz boat cannot be controlled because the cavity in the tube is closed.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a tube furnace for a rail transit material combustion test comprises a heating pipeline, a quartz boat assembly sliding along the heating pipeline and a positioning assembly controlling the quartz boat assembly, wherein a bearing platform is fixedly installed in the heating pipeline, a running track is installed on the bearing platform, a containing groove is further formed in the bearing platform, the quartz boat assembly comprises a movable block movably arranged on the running track and a sliding assisting wheel installed in the movable block, the sliding assisting wheel is overlapped on the running track, the positioning assembly comprises a driving screw rotatably arranged in the containing groove, an inclined wedge block sleeved on the driving screw in a matching manner and a positioning block slidably overlapped on the inclined wedge block, and the inclined wedge block can be driven to move along the containing groove when the driving screw rotates in the containing groove, an inclined plane is arranged between the inclined wedge block and the positioning block, the inclined wedge block pushes the positioning block to extend into the upper portion of the running track through the inclined plane, and the positioning block can block the positions of the auxiliary pulley and the moving block on the running track.

Furthermore, the moving block is provided with an operation groove, the operation groove corresponds to the operation track, and the moving block can be slidably clamped to the operation track through the operation groove.

Furthermore, a sliding limiting groove is formed in the running track, a limiting strip block is arranged on the groove wall of the running groove in a protruding mode, and the limiting strip block can be inserted into the sliding limiting groove in a matched mode.

Furthermore, a wheel column vertically penetrates through the running groove, and the pulley wheel is rotatably sleeved in the wheel column.

Furthermore, a sliding groove is formed in the accommodating groove, a lifting groove is further formed in the sliding groove, the oblique wedge block is slidably accommodated in the sliding groove, and the positioning block is slidably arranged in the lifting groove.

Furthermore, the running track is provided with a yielding groove, and the auxiliary pulley can be arranged in the yielding groove in a relatively rotating manner.

Furthermore, two sides of the auxiliary pulley are fixedly provided with positioning sleeves, and the positioning sleeves can rotatably abut against the moving block.

Further, a bearing is installed on the moving block, and the end of the positioning sleeve penetrates into the bearing.

The heating device has the advantages that the running track and the containing groove are arranged in the heating pipeline, the driving screw rod, the moving block and the positioning block are arranged in the containing groove, the driving screw rod drives the moving block to move in the containing groove, the positioning block can be driven to move up and down through the inclined plane, the positioning block can extend into the lower portion of the auxiliary pulley after moving, the auxiliary pulley is blocked by the positioning block in the moving process, the moving stroke along the running track can be controlled, the position of the moving block in the heating pipeline is controlled, the heating position of a sample block on the moving block in the heating pipeline is guaranteed, and the heating efficiency of the tubular furnace on a sample can be guaranteed.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a tube furnace of the present invention;

FIG. 2 is a left side view of the tube furnace of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A in FIG. 2;

FIG. 4 is a front view of the tube furnace of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

in the figure: the tube furnace 100, the heating pipeline 10, the quartz boat assembly 20, the positioning assembly 30, the bearing platform 110, the running track 111, the sliding limiting groove 112, the accommodating groove 120, the moving block 210, the sliding wheel 220, the running groove 211, the limiting strip block 212, the wheel column 213, the abdicating groove 113, the positioning sleeve 221, the bearing 222, the driving screw 310, the inclined wedge 320, the positioning block 330, the fixing block 311, the sliding groove 121 and the lifting groove 122.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

As shown in fig. 1 to 6, the present invention provides a tube furnace 100 for a rail transit material combustion test, which includes a heating pipe 10, a quartz boat assembly 20 sliding along the heating pipe 10, and a positioning assembly 30 controlling a position of the quartz boat assembly 20 within the heating pipe 10.

As shown in fig. 1 to 3, a bearing platform 110 is disposed in the heating pipeline 10, the bearing platform 110 is disposed along an axial direction of the heating pipeline 10, a corresponding operation track 111 is mounted on the bearing platform 110, the operation track 111 is also disposed along the axial direction of the heating pipeline 10, a sliding limiting groove 112 is disposed on the operation track 111, an accommodating groove 120 is further disposed on the bearing platform 110, the accommodating groove 120 corresponds to the operation track 111, and the accommodating groove 120 penetrates through the bearing platform 110.

As shown in fig. 4 to 6, the quartz boat assembly 20 includes a moving block 210 and a pulley 220, the moving block 210 is provided with a moving groove 211, the moving groove 211 corresponds to the moving track 111, the moving block 210 is slidably clamped to the moving track 111 through the moving groove 211, a limit block 212 is fixedly mounted on a side surface of the moving groove 211 corresponding to the moving track 111, when the moving groove 211 of the moving block 210 is clamped on the moving track 111, the limit block 212 can be slidably inserted into the sliding limit groove 112, under the limit of the limit block 212, the moving block 210 can only slide to a designated position along the moving track 111, the wheel column 213 is vertically inserted in the moving groove 211, the auxiliary pulley 220 is rotatably sleeved in the wheel column 213, preferably, the running rail 111 is further provided with an abdicating groove 113, the pulley wheel 220 is relatively rotatably arranged in the abdicating groove 113, the moving block 210 is more lubricated with respect to the moving process of the moving track 111 under the rotation support of the pulley wheel 220. Preferably, positioning sleeves 221 are fixed on both sides of the pulley aid 220, bearings 222 corresponding to the wheel posts 213 are installed in the running groove 211, the positioning sleeves 221 are fixedly inserted into the bearings 222, the positioning sleeves 221 are rotatably sleeved on the wheel posts 213, the positioning sleeves 221 are disposed between the pulley aid 220 and the groove wall of the running groove 211, and the positioning sleeves 221 can clamp and limit the position of the pulley aid 220 in the running groove 211.

The positioning assembly 30 includes a driving screw 310 rotatably disposed in the receiving groove 120, a wedge 320 fittingly sleeved on the driving screw 310, and a positioning block 330 slidably disposed on the wedge 320, wherein fixing blocks 311 are sleeved at two ends of the driving screw 310, and the fixing blocks 311 are fixedly mounted in the receiving groove 120. The groove wall of the accommodating groove 120 adjacent to the relief groove 113 is provided with a plurality of sliding grooves 121, the sliding grooves 121 are arranged along the axial direction of the driving screw 310, the distance between two adjacent sliding grooves 121 is larger than the distance between the auxiliary pulleys 220 on the moving block 210, the groove wall of the sliding groove 121 is provided with a lifting groove 122, the wedge 320 is slidably accommodated in the sliding groove 121, the wedge 320 can only slide along the sliding groove 121 but cannot rotate, the positioning block 330 can be accommodated in the lifting groove 122 in a lifting manner, the wedge 320 and the positioning block 330 are overlapped with each other, the plane where the wedge 320 and the positioning block 330 are contacted is an inclined plane, the inclined direction of the inclined plane is the same as the position of the driving screw 310, when the driving screw 310 drives the wedge 320 to move in the sliding groove 121, the inclined plane on the wedge 320 can push the positioning block 330, and the positioning block 330 moves along the lifting groove 122 after being pushed, the ascending groove 122 is communicated with the sliding groove 121 and the abdicating groove 113 in a penetrating manner, the positioning block 330 can move into the abdicating groove 113 along the ascending groove 122, the positioning block 330 can block the moving stroke of the pulley block 220 in the abdicating groove 113, during the sliding process of the wedge 320, due to the limitation of the sliding groove 121, the sliding stroke of the wedge 320 is limited, and the inclined plane of the wedge 320 is always spliced with the positioning block 330 during the sliding process, so that the wedge 320 can be ensured to always drive the positioning block 330 to slide in the ascending groove 122 during the sliding process.

When the tube furnace 100 is used, a sample to be subjected to combustion measurement is placed on the moving block 210, then the moving block 210 is inserted into the running track 111 of the bearing platform 110, the assistant pulley 220 is rotatably accommodated in the abdicating groove 113, the moving block 210 is pushed along the axial direction of the heating track 10, the assistant pulley 220 below the moving block 210 rotates in the abdicating groove 113, then the driving screw 310 is rotated, the driving screw 310 drives the inclined wedge 320 to move in the sliding groove 121, the positioning block 330 can be pushed into the abdicating groove 113 along the lifting groove 122 under the driving of the inclined surface of the inclined wedge 320, the positioning blocks 330 are respectively arranged on two sides of the assistant pulley 220 until the assistant pulley 220 abuts against the positioning block 330 emerging from the abdicating groove 113, the position of the assistant pulley 220 in the abdicating groove 113 can be limited under the blocking effect of the positioning block 330, so as to limit the position of the moving block 210 relative to the running track 111, ensuring the heating efficiency of the sample in the heating pipeline 10.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. The utility model provides a track traffic material burning test is with tubular furnace which characterized in that: the quartz boat assembly comprises a heating pipeline, a quartz boat assembly sliding along the heating pipeline and a positioning assembly controlling the quartz boat assembly, wherein a bearing platform is fixedly installed in the heating pipeline, an operation track is installed on the bearing platform, a containing groove is further formed in the bearing platform, the quartz boat assembly comprises a movable block movably arranged on the operation track and a sliding assisting wheel installed in the movable block, the sliding assisting wheel is connected to the operation track in a lap mode, the positioning assembly comprises a driving screw rotatably arranged in the containing groove, an inclined wedge block sleeved on the driving screw in a matching mode and a positioning block slidably connected to the inclined wedge block in a lap mode, the driving screw can drive the inclined wedge block to move along the containing groove when the driving screw rotates in the containing groove, and an inclined plane is arranged between the inclined wedge block and the positioning block, the inclined wedge block pushes the positioning block to extend into the upper portion of the running track through the inclined plane, and the positioning block can block the positions of the auxiliary pulley and the moving block on the running track.

2. The tube furnace for the rail transit material combustion test as claimed in claim 1, wherein: the moving block is provided with an operation groove, the operation groove corresponds to the operation track, and the moving block can be clamped to the operation track in a sliding mode through the operation groove.

3. The tube furnace for the rail transit material combustion test as claimed in claim 2, wherein: the sliding limiting groove is formed in the running track, a limiting strip block is arranged on the groove wall of the running groove in a protruding mode, and the limiting strip block can be inserted into the sliding limiting groove in a matched mode.

4. The tube furnace for the rail transit material combustion test as claimed in claim 2, wherein: a wheel column vertically penetrates through the running groove, and the pulley is rotatably sleeved in the wheel column.

5. The tube furnace for the rail transit material combustion test as claimed in claim 1, wherein: the inclined wedge block is accommodated in the sliding groove in a sliding mode, and the positioning block is arranged in the gear-up groove in a sliding mode.

6. The tube furnace for the rail transit material combustion test as claimed in claim 1, wherein: the moving track is provided with a yielding groove, and the auxiliary pulley can be arranged in the yielding groove in a relatively rotating mode.

7. The tube furnace for the rail transit material combustion test as claimed in claim 1, wherein: and positioning sleeves are fixedly arranged on two sides of the auxiliary pulley and can rotatably abut against the moving block.

8. The tube furnace for the rail transit material combustion test as claimed in claim 7, wherein: the moving block is provided with a bearing, and the end part of the positioning sleeve penetrates into the bearing.

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