CN205157111U - Portable calibrating device for pull pressure sensor - Google Patents

Abstract

The utility model relates to a technical field of test, more specifically relates to portable calibrating device for pull pressure sensor. Portable calibrating device for pull pressure sensor, wherein, including base, the lead screw locating lead screw location portion on the base, be connected with lead screw location portion, lead screw one end connect trapezoidal push -and -pull dynamometry portion, the actuating rod is connected to the other end, is equipped with the supporting seat in the trapezoidal push -and -pull dynamometry portion. The utility model discloses the grip deszign is portable, practical with conveniently adjust centre of gravity place to bear the atress direction of different instruments. Utilize trapezoidal push -and -pull dynamometry portion, directly to utilize the lead screw to carry out the anchor clamps of push -pull effort calibration laborsaving relatively with all the other prior art. And the dynamometry anchor clamps that seldom have thrust and pulling force to unify on the market, there is the anchor clamps volume of two kinds of functions of push -and -pull generally great, inconvenient carrying. These anchor clamps volume is less, conveniently carries.

Description

Portable tension sensor calibration device

technical field

The utility model relates to the technical field of testing, in particular to a portable tension pressure sensor calibration device.

Background technique

Due to the continuous development of the country's industry, various forms of non-standard force measuring instruments require on-site calibration. Among them, the load cell is an important part of the non-standard instrument measurement verification. Every measurement institution is faced with the calibration problems of various new instruments, and this method makes on-site calibration of tension and pressure sensors more convenient and quicker. According to the following requirements for fixtures of electronic universal testing machine, non-metallic material testing machine and non-standard standard force testing machine, the fixture is stable and reliable to ensure accurate force measurement.

At present, there are deficiencies in the force measurement part of non-standard testing machines on the market, such as unstable calibration values, bulky, inconvenient to carry, and low applicability of equipment, resulting in a high probability of misjudgment.

Contents of the invention

In order to overcome at least one defect of the prior art, the utility model provides a portable tension and pressure sensor calibration device. The fixture is designed to be portable, practical and convenient to adjust the center of gravity, so as to bear the force direction of different instruments.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a portable tension pressure sensor calibration device, which includes a base, a screw positioning part arranged on the base, and a screw connected to the screw positioning part; One end of the screw rod is connected to the trapezoidal push-pull force-measuring part, and the other end is connected to the action rod. The trapezoidal push-pull force-measuring part is provided with a support seat.

In the utility model, the user can act on the screw rod through the action rod, and the positioning part of the screw rod is provided with a thread matched with the screw rod, and the screw rod can move laterally to push the trapezoidal push-pull force-measuring part. It can drive the support base to move up or down. The tested force sensor and the standard force sensor are placed on the support base.

Therefore, the portable tension and pressure sensor calibration device adopts the direct measurement method, and the tested force sensor and the standard force sensor are directly connected to the portable tension and pressure sensor calibration device, and the clamp is slowly pressurized to reach the required test point.

Further, the base is provided with a guide rail, and the trapezoidal push-pull force measuring part is arranged on the guide rail and moves laterally along the guide rail. A guide rod is also fixed on the base, and the support seat passes through the guide rod and moves vertically along the guide rod. The upper part of the trapezoidal push-pull force measuring part is provided with a first slope, and the lower part of the support base is provided with a second slope, and the first slope is in contact with the second slope.

In the utility model, when the trapezoidal push-pull force-measuring part moves laterally on the guide rail, the first inclined surface and the second inclined surface are in contact with each other, which can drive the support seat to move up or down along the guide rod, and the clamp is slowly pressurized to achieve the required test. point.

In general, when all kinds of non-standard instruments are calibrated for force measurement, the calibration mechanism is directly put into the force measurement standard for calibration. However, this kind of method generally needs to start the test motor of the instrument. When the motor is directly used for calibration, accidents are relatively easy to occur.

The design of this fixture is small and light, and it is easy to bring to the customer's site for calibration. The special fixture on the market is installed on the sensor, and the preparation work will consume a lot of time. And the utility model is committed to developing and can be used for thrust and pulling calibration work simultaneously. It can also be calibrated directly without starting the instrument motor, which can greatly improve production safety and reduce the probability of instrument failure.

Therefore, according to the content of various parameters of non-standard testing machines, a portable tension and pressure sensor calibration device has been developed to reduce or avoid the limitations of various types of standard testing machines encountered in the calibration work. This portable tension and pressure sensor calibration device will cover all On-site calibration of tension-like pressure sensors.

Compared with the prior art, the beneficial effect is that the fixture of the utility model is designed to be portable, practical and convenient to adjust the position of the center of gravity, so as to withstand the force directions of different instruments. The use of the trapezoidal push-pull force-measuring part is relatively labor-saving compared with other fixtures in the prior art that directly use screw rods to calibrate the push-pull force. Moreover, there are few force-measuring fixtures on the market that combine push force and pull force. The fixtures with both push and pull functions are generally large in size and inconvenient to carry. The folder is small in size and convenient to carry.

Description of drawings

Fig. 1 is a schematic diagram of the overall three-dimensional structure of the utility model.

Fig. 2 is a side view sectional structure schematic diagram of the utility model.

detailed description

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

As shown in Figures 1 and 2, the portable pull-pressure sensor calibration device includes a base 1, a screw positioning part 3 arranged on the base 1, and a screw 2 connected to the screw positioning part 3; one end of the screw 2 is connected to The other end of the trapezoidal push-pull force-measuring part 4 is connected to the action rod 8 , and the trapezoidal push-pull force-measuring part 4 is provided with a support seat 5 .

In this embodiment, the user can act on the screw rod 2 through the action rod 8, and the screw rod positioning part 3 is provided with a thread that cooperates with the screw rod 2. The screw rod 2 can move laterally to push the trapezoidal push-pull force measuring part 4, and the trapezoidal push-pull When the force measuring part 4 moves laterally, it can drive the supporting seat 5 to move upward or downward. The tested force sensor and the standard force sensor are placed on the support base 5 .

Therefore, the portable tension and pressure sensor calibration device adopts the direct measurement method, and the tested force sensor and the standard force sensor are directly connected to the portable tension and pressure sensor calibration device, and the clamp is slowly pressurized to reach the required test point.

In this embodiment, the base 1 is provided with a guide rail 6 , and the trapezoidal push-pull force measuring part 4 is provided on the guide rail 6 and moves laterally along the guide rail 6 . A guide rod 7 is also fixed on the base 1 , and the support seat 5 passes through the guide rod 7 and moves vertically along the guide rod 7 . The upper part of the trapezoidal push-pull force measuring part 4 is provided with a first slope, and the lower part of the support base 5 is provided with a second slope, and the first slope contacts with the second slope.

When the trapezoidal push-pull force-measuring part 4 moves laterally on the guide rail 6, the first inclined surface and the second inclined surface can contact and cooperate, which can drive the support seat 5 to move up or down along the guide rod 7, and the fixture is slowly pressurized to reach the required test point .

The screw rod 2 is used to push the trapezoidal push-pull force-measuring part 4, and the displacement of the trapezoidal push-pull force-measuring part 4 is used to perform tension and pressure tests.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (4)

1. The portable tension and pressure sensor calibration device is characterized in that it includes a base (1), a screw positioning part (3) arranged on the base (1), and a screw rod (2) connected to the screw positioning part (3) One end of the screw rod (2) is connected to the trapezoidal push-pull force-measuring part (4), and the other end is connected to the action rod (8), and the trapezoidal push-pull force-measuring part (4) is provided with a support seat (5). 2. The portable tension and pressure sensor calibration device according to claim 1, characterized in that: the base (1) is provided with a guide rail (6), and the trapezoidal push-pull force measuring part (4) is provided on the guide rail (6) And move laterally along the guide rail (6). 3. The portable tension and pressure sensor calibration device according to claim 2, characterized in that: the base (1) is also fixed with a guide rod (7), the support base (5) passes through the guide rod (7) and Move vertically along the guide rod (7). 4. The portable tension pressure sensor calibration device according to claim 3, characterized in that: the upper part of the trapezoidal push-pull force measuring part (4) is provided with a first inclined plane, and the lower part of the support seat (5) is provided with a second inclined plane, The first slope is in contact with the second slope.