Device for adjusting contact of seam between thermocouple and heating element

FIELD: measuring equipment.

SUBSTANCE: device has thermocouple 1 with seam 2, fixedly packed in tubular case 3 with longitudinal groove 4. tubular case 3 on thread enters screw holder 5, which by its outer screw profile is screwed into coils of set-point spring 6, fixedly held on heating element 7. Outwardly bent end 8 of spring 6 is inserted into longitudinal groove 4 of tubular case 3. spring 6 is provided with sensor 9 for axial displacement of spring and sensor 10 for dynamic pressure force. Rotation of screw holder 5 shall be performed until seam 2 stops against heating element 7 to the point, when sensor 9 and sensor 10 will determine, that step S of spring 6 increased to controlled value, which matches reliable contact of seam 2 with heating element 7.

EFFECT: determined moment of contact of seam between thermocouple and heating element during manual movement of screw holder.

2 cl, 1 dwg

 

The invention relates to the field of instrumentation.

The applicant is known, the closest analogue (prototype) of the claimed invention as the most close to him on essential features. This is a similar setting device pressure regulator containing a screw clamp setting the initial pressure in the form of a screw with locknut, spring job and switch to a preset pressure (A.S. USSR № 788082, IPC G 05 D 16/06, 1980).

A disadvantage of this device is the inability to control for manual movement of a screw clamp.

The problem to which the invention is directed is the provision of a controlled dynamic pressure in manual or in automatic mode, slow progressive axial movement of thermocouple.

The technical result of the invention is the determination of the point contact junction thermocouple with heating element upon manual movement of a screw clamp.

The above object is achieved in that the device configuration of the contact junction of thermocouple with the heated element includes a screw clamp and spring job, with a screw clamp is made hollow with internal thread associated with the tubular housing within which is placed a thermocouple with reference junction at one end, a screw clamp screwed into the coils installed motionless on a heating element springs jobs end of which is from the heated element bent and put into a longitudinal groove of the tubular casing, and a spring job has a sensor axial movement of the spring and the sensor dynamic pressure force.

The drawing shows the device configuration of the contact junction of thermocouple with the heated element.

The device comprises a thermocouple 1 to junction 2, still Packed in the tubular holder 3 with a longitudinal groove 4. A tubular ferrule 3 is coaxial to the threaded screw clamp 5, which is the outer screw profile is wound into the coils of the spring 6, providing her initial loading coils. Spring job 6 fixedly mounted on the heating element 7, the bent end 8 is introduced into the longitudinal groove 4 of the tubular casing 3. The spring 6 has a sensor 9 axial movement of the spring and the sensor 10 dynamic pressure force (shown conventionally).

The device operates as follows. The tubular holder 3 with thermocouple 1 and junction 2 set screw clamp 5, which is screwed into the cavity of the coils of the spring 6. To sum junction 2 thermocouple 1 to the heated element 7 and the bent end 8 of the spring 6 to enter into the longitudinal groove 4 of the tubular casing 3 and continue to turn the screw clamp 5 up until junction 2 will not run into the heating element 7 so that the sensor 9 oevag the movement of the spring and the sensor 10 dynamic pressure force will be obvious, in the spring job 6 loaded rounds will begin in proportion to the applied force to stretch, i.e. the step "S", established in the spring 6 until the loading will increase to a controlled value which will correspond to the limit of the guarantee rigidity of the end face of the tubular holder 3 with junction 2 of thermocouple 1, i.e. will not cause collapse of the junction 2 and the contact junction 2 and the heated element 7 will be reliable.

1. The device configuration of the contact junction of thermocouple with the heated element containing a screw clamp and spring job, characterized in that the screw clamp is made hollow with internal thread associated with the tubular housing within which is placed a thermocouple with reference junction at the end, with a screw clamp wound into coils installed motionless on a heating element springs jobs, the end of which side of the heated element bent and put into a longitudinal groove of the tubular holder.

2. The device configuration of the contact according to claim 1, characterized in that the spring job has a sensor axial movement of the spring and the sensor dynamic pressure force.



 

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