CN210647744U

CN210647744U - Strain type large force value sensor

Info

Publication number: CN210647744U
Application number: CN201921368305.2U
Authority: CN
Inventors: 梅志彬; 杨玉研
Original assignee: Anshan Tianyi Electromechanical Technology Co ltd
Current assignee: Anshan Tianyi Electromechanical Technology Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-02
Anticipated expiration: 2029-08-22

Abstract

The utility model provides a big power value sensor of strain gauge relates to sensor detection technical field. The utility model discloses an including the sensor body, still be equipped with sealing joint on the sensor body, the inside circuit board that is provided with of sensor body, circuit board output draws forth through sealing joint, the sensor body outside is provided with the protection casing, protection casing upper end is provided with first concave station, be provided with the apron on the first concave station, the apron agrees with mutually with first concave station, be provided with the second concave station on the apron, be provided with the gland on the second concave station, the gland agrees with mutually with the second concave station, the gland includes first gland and second gland, first gland sets up the left side at the apron, the second gland sets up the left side at the apron. The utility model provides a too big or high temperature of load cause the damage problem of sensor.

Description

Strain type large force value sensor

Technical Field

The utility model relates to a sensor especially relates to a big power value sensor of strain gauge.

Background

The strain type large-force sensor is a special measuring device used on a steel plate rolling line, and in order to ensure the good running state of a steel plate in a rolling mill, an accurate and quick rolling force measuring signal must be provided for the rolling mill, so that the good or bad running state of the large-force strain type sensor is a key factor for ensuring the rolling quality of the steel plate. Therefore, the strain type large force sensor plays an important role in the quality of steel plate rolling.

The basic working principle of the strain gauge sensor is as follows: when the measured pressure acts on the elastic element (the object with elastic strain characteristic is called the elastic element), the elastic element deforms under the action of pressure and is converted into corresponding strain, and then the strain is transmitted to the strain gauge connected with the elastic element, so that the resistance value of the strain sensitive element is changed, and the change is converted into electric quantity output through the conversion circuit. The output electric quantity reflects the measured pressure.

The sensor is easily damaged under the action of strong rolling force or in a high-temperature working environment.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a big power value sensor of strain gauge makes it solve the too big or high temperature of sensor load, the damage problem that causes easily.

In order to solve the above problem, the utility model provides a technical scheme as follows:

the utility model provides a big power value sensor of strain gauge, includes the sensor body, still be equipped with sealing joint on the sensor body, the inside circuit board that is provided with of sensor body, circuit board output passes through sealing joint draws forth, the sensor body outside is provided with the protection casing, protection casing upper end is provided with first concave station, be provided with the apron on the first concave station, the apron with first concave station agrees with mutually, be provided with the second concave station on the apron, be provided with the gland on the second concave station, the gland with the second concave station agrees with mutually, the gland includes first gland and second gland, first gland sets up the left side of apron, the second gland sets up the left side of apron.

Furthermore, the gland is connected with the protective shell through a bolt, a first rubber gasket is arranged at the joint of the gland and the protective shell, and a second rubber gasket is arranged on the cover plate.

Furthermore, the second rubber packing ring sets up the both sides of apron, the second rubber packing ring is U type structure.

Furthermore, the lower end of the cover plate is provided with a flexible beam, and the flexible beam is made of a silica gel material.

Furthermore, a first heat absorption plate is arranged at the upper end of the sensor body, and a second heat absorption plate is arranged at the lower end of the sensor body.

Further, the first heat absorption plate and the second heat absorption plate are made of metal material aluminum.

Further, a sealing ring is assembled at the joint of the sealing joint and the protection shell.

Compared with the prior art, the utility model has the advantages of it is following:

1. the full-sealed protective shell structure is oil-resistant and moisture-resistant and is suitable for severe working environments;

2. the lower end of the cover plate is provided with a flexible beam which is made of a silica gel material, so that the effects of pressure buffering and shock absorption can be achieved, and the damage of force to the sensor is reduced;

3. the sensor comprises a sensor body, wherein a first heat absorption plate is arranged at the upper end of the sensor body, a second heat absorption plate is arranged at the lower end of the sensor body, the first heat absorption plate and the second heat absorption plate are made of metal aluminum, the specific heat capacity of the metal aluminum is relatively high, the cost performance is high, and the sensor can be protected from temperature;

4. the sealing ring is assembled at the joint of the sealing joint and the protective shell, and the sealing joint has good sealing performance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of the main element symbols:

1-sensor body 2-protective housing 3-cover plate

4-first gland 5-second gland 6-sealing joint

7-flexible beam 8-first heat absorption plate 9-second heat absorption plate

10-first rubber washer 11-second rubber washer 12-bolt

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.

As shown in FIG. 1, the embodiment of the present invention includes a sensor body 1, a sealing joint 6 is further assembled on the sensor body 1, a circuit board is arranged inside the sensor body 1, the output of the circuit board is led out through the sealing joint 6, a protective housing 2 is arranged outside the sensor body 1, a first concave stage is arranged at the upper end of the protective housing 2, a cover plate 3 is arranged on the first concave stage, the cover plate 3 is engaged with the first concave stage, a second concave stage is arranged on the cover plate 3, a gland is arranged on the second concave stage, the gland is engaged with the second concave stage, the gland includes a first gland 4 and a second gland 5, the first gland 4 is arranged at the left side of the cover plate 3, the second gland 5 is arranged at the left side of the cover plate 3, the gland is connected with the protective housing 2 through a bolt 12, a first rubber gasket 10 is arranged at the joint of the gland and the protective housing 2, a second rubber gasket 11 is arranged on, second rubber packing ring 11 sets up in the both sides of apron 3, and second rubber packing ring 11 is U type structure, and seal structure is good, resistant oil, moisture resistance, adapts to abominable operational environment more, and sealing joint 6 is equipped with the sealing washer with the junction of protecting casing 2, makes the sensor have good sealing performance.

The lower end of the cover plate 3 is provided with a flexible beam 7, the flexible beam 7 is made of a silica gel material, the effects of pressure buffering and shock absorption can be achieved, and the damage of force to the sensor is reduced.

The upper end of the sensor body 1 is provided with a first heat absorption plate 8, the lower end of the sensor body 1 is provided with a second heat absorption plate 9, the first heat absorption plate 8 and the second heat absorption plate 9 are made of metal material aluminum with large specific heat capacity, the aluminum has the characteristics of light weight and high cost performance, and the temperature protection effect can be achieved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a big power value sensor of strain gauge, includes the sensor body, still be equipped with sealing joint on the sensor body, the inside circuit board that is provided with of sensor body, circuit board output passes through sealing joint draws forth, its characterized in that, the sensor body outside is provided with the protection casing, protection casing upper end is provided with first concave station, be provided with the apron on the first concave station, the apron with first concave station agrees with mutually, be provided with the second concave station on the apron, be provided with the gland on the second concave station, the gland with the second concave station agrees with mutually, the gland includes first gland and second gland, first gland sets up the left side of apron, the second gland sets up the left side of apron.

2. The strain type large force sensor as claimed in claim 1, wherein the gland is connected with the protective shell through a bolt, a first rubber gasket is arranged at the joint of the gland and the protective shell, and a second rubber gasket is arranged on the cover plate.

3. The strain type large force sensor as claimed in claim 2, wherein the second rubber gaskets are disposed on both sides of the cover plate, and the second rubber gaskets are in a U-shaped structure.

4. The strain type large force sensor as claimed in claim 3, wherein the cover plate is provided at a lower end thereof with a flexible beam made of a silicone material.

5. The strain-type large force sensor as claimed in claim 4, wherein the sensor body is provided at an upper end thereof with a first heat absorbing plate and at a lower end thereof with a second heat absorbing plate.

6. The strain-type high force sensor of claim 5, wherein the first heat-absorbing plate and the second heat-absorbing plate are made of aluminum.

7. The strain gage force sensor as defined in claim 6, wherein a sealing ring is fitted at the junction of said sealing joint and said protective housing.