CN210802771U

CN210802771U - Calibration table for pressure transmitter calibration

Info

Publication number: CN210802771U
Application number: CN201921990674.5U
Authority: CN
Inventors: 高青松; 李峰
Original assignee: Anhui Adda Automation Equipment Co ltd
Current assignee: Anhui Adda Automation Equipment Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-06-19
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a pressure transmitter examines and determine and uses calibration stand belongs to changer technical field, including the calibration stand, the surface of calibration stand is equipped with a recess, and the recess falls into the fixed slot through the baffle and detects two regions in groove, the fixed slot is used for fixed pressure transmitter, be equipped with fixed recess on the baffle, pressure transmitter's pressure detection end is fixed the inside of fixed recess, detect the pressure input system that the internally mounted in groove comprises push pedal, push rod and pressure input cylinder, pressure input system is used for exerting pressure to pressure transmitter's detection end, two parallel two direction slide bars of each other are installed respectively at the push pedal both ends, the push pedal with direction slide bar sliding connection. The pressure input system in the detection groove applies pressure to the pressure probe of the transmitter, and according to the law that the force action is mutual, the pressure input by the pressure input system is the same as the pressure received by the transmitter, so that pressure verification is accurately carried out.

Description

Calibration table for pressure transmitter calibration

Technical Field

The utility model relates to a changer technical field, in particular to pressure transmitter examines and determine and uses calibration stand.

Background

A transducer is a transducer that converts the output signal of a sensor into a signal that can be recognized by a controller (or a signal source that converts the non-electrical quantity input by the sensor into an electrical signal while amplifying it for remote measurement and control). The sensor and the transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. The transmitters are various in types, and the transmitters used on the industrial control instrument mainly comprise a temperature transmitter, a pressure transmitter, a flow transmitter, a current transmitter, a voltage transmitter and the like.

Pressure transmitter is used for using as pressure detection, and pressure transmitter need sample after production is accomplished and carry out the pressure check usually, and traditional check-up mode is complicated, and whether the pressure that can not quick check out pressure transmitter is accurate, and the fixing device of check-up table is generally fixed firm pressure transmitter after in addition, and it is more complicated to change pressure transmitter to lead to the check-up efficiency step-down.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is poor just to lie in order to solve above-mentioned pressure transmitter check-up accuracy, high-efficient inadequately to and the changer check-up more troublesome problem of changing after finishing provides a pressure transmitter examination and uses calibration bench, has the pressure that comes inspection pressure transmitter to detect through PLC control input pressure, is difficult to make mistakes, and efficient, through the fixed changer of locking mechanism, the changer changes easier advantage.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a pressure transmitter examines and determine and uses check-up bench, including the check-up bench, the surface of check-up bench is equipped with a recess, and the recess falls into the fixed slot through the baffle and detects two regions in groove, the fixed slot is used for fixed pressure transmitter, be equipped with fixed recess on the baffle, pressure transmitter's pressure detection end is fixed the inside of fixed recess, detect the pressure input system that the internally mounted in groove comprises push pedal, push rod and pressure input cylinder, pressure input system is used for exerting pressure to pressure transmitter's detection end, two direction slide bars that are parallel to each other are installed respectively at the push pedal both ends, the push pedal with direction slide bar sliding connection.

Preferably, a PLC controller is installed on one side of the calibration stand and used for controlling the output thrust of the pressure input cylinder.

Preferably, the upper surface of fixed slot sets up two symmetrical backup pads, and the backup pad is used for supporting pressure transmitter's upper portion, still installs locking mechanism on the fixed slot, and locking mechanism is used for the lower part of fixed pressure transmitter.

Preferably, locking mechanism is including setting up the bar groove at the check-up bench upper surface, the internally mounted threaded rod in bar groove, and the extrusion post that can stretch into the fixed slot is connected to the bottom that the threaded rod inserted the bar groove, and the top that the bar groove was worn out to the threaded rod cup joints the regulation crank.

Preferably, the extrusion column is arranged on the side opposite to the partition plate and is a rubber column.

Compared with the prior art, the beneficial effects of the utility model are that:

1. can fix pressure transmitter fast through the fixed slot, the pressure input system who detects inslot portion exerts pressure to the pressure probe of changer, be this law each other according to the effect of force, can derive the pressure that pressure input system input is the same with the pressure that the changer received, thereby accurate carry out the pressure check, pressure input system's pressure input cylinder is by PLC controller input thrust size, the pressure numerical value that shows on through the contrast changer compares with the thrust value of input on the PLC controller, thereby can check up the accuracy of changer.

2. Through setting up locking mechanism in fixed slot inside, fixed and dismantlement pressure transmitter that can be quick through locking mechanism has improved calibration efficiency, and locking mechanism's theory of operation is through you doing the regulation crank for the threaded rod removes at bar inslot portion, thereby makes the extrusion post compress tightly the latter half of changer, screws up again and adjusts the crank, and pressure transmitter is fixed this moment, and the check-up finishes the back, screws up again and loosens and adjust the crank and can take off pressure transmitter, easy operation like this, and it is convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the device of the present invention.

Fig. 2 is a top view of the structure of the checking platform of the present invention.

Fig. 3 is a schematic structural diagram of the locking mechanism of the present invention.

In the figure: 1. calibration table, 2, PLC controller, 3, pressure input cylinder, 4, fixed slot, 5, detect the groove, 6, backup pad, 7, locking mechanism, 8, baffle, 9, fixed recess, 10, direction slide bar, 11, push pedal, 12, push rod, 13, bar groove, 14, extrusion post, 15, regulation crank, 16, threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a calibration stand for calibrating a pressure transmitter comprises a calibration stand 1, a groove is formed on the surface of the calibration stand 1, the groove is divided into two regions, namely a fixing groove 4 and a detection groove 5, by a partition plate 8, the fixing groove 4 is used for fixing the pressure transmitter, the partition plate 8 is provided with a fixing groove 9, the pressure detection end of the pressure transmitter is fixed inside the fixing groove 9, a pressure input system composed of a push plate 11, a push rod 12 and a pressure input cylinder 3 is installed inside the detection groove 5, the pressure input system is used for applying pressure to the detection end of the pressure transmitter, two parallel guide slide rods 10 are respectively installed at the two ends of the push plate 11, the push plate 11 is connected with the guide slide rods 10 in a sliding manner, according to the law that the force action is mutual, a pressure input system is installed at the pressure detection end of the pressure transmitter, and the input pressure, compare with pressure transmitter's detection pressure, whether can audio-visually reachd this pressure transmitter's pressure measurement accurate, fixed slot 4 on the check-up table 1 is used for fixed pressure transmitter, it is used for placing pressure input system to detect groove 5, pressure input system passes through push pedal 11 and pressure transmitter's detection end contact, it exerts pressure to pressure transmitter's detection end to promote push pedal 11 by 3 drive push rods 12 of pressure input cylinder, two parallel direction slide bars 10 can make push pedal 11 remove more stably.

A PLC controller 2 is arranged on one side of a checking platform 1, the PLC controller 2 is used for controlling the output thrust of a pressure input cylinder 3, the pressure input cylinder 3 is opened and closed and started by the PLC controller 2, the thrust of the pressure input cylinder 3 is input by an operation panel on the PLC controller 3, and the accuracy of the pressure transmitter is found by comparing pressure detection values displayed on the pressure transmitter, the mode that the PLC controller 2 controls the cylinder belongs to the prior art and mature technical means, the PLC controller is frequently used in industrial production, two symmetrical supporting plates 6 are arranged on the upper surface of a fixed groove 4, the supporting plates 6 are used for supporting the upper part of the pressure transmitter, a locking mechanism 7 is also arranged on the fixed groove 4, the locking mechanism 7 is used for fixing the lower part of the pressure transmitter, and the locking mechanism 7 comprises a strip-shaped groove 13 arranged on the upper surface of the checking platform 1, a threaded rod 16 is arranged in the strip-shaped groove 13, the bottom end of the threaded rod 16 inserted into the strip-shaped groove 13 is connected with an extrusion column 14 which can extend into the fixed groove 4, the threaded rod 16 penetrates out of the top end of the strip-shaped groove 13 and is sleeved with an adjusting crank 15, the extrusion column 14 is arranged on one side opposite to the partition plate 8 and is a rubber column, the fixed groove 4 is used for fixing a pressure transmitter, the instrument part of the pressure transmitter is supported by the supporting plate 6, the lower part of the instrument part is clamped by the locking mechanism 7, the locking mechanism 7 is used in a mode that a movable extrusion column 14 extrudes the lower part of the pressure transmitter so that the pressure transmitter is attached to the partition plate 8, thereby play the fixed action, and extrusion post 14 extrudees pressure transmitter through threaded rod 16 removal in bar groove 13, and threaded rod 16 is through adjusting crank 15 control locking, and extrusion post 14 chooses for use the rubber column, can avoid wearing and tearing to pressure transmitter's shell.

The utility model discloses a theory of operation: place the fixed slot 4 position at calibration stand 1 with the pressure transmitter who treats the calibration earlier, adjust crank 15 through unscrewing, the removal threaded rod 16 makes extrusion post 14 paste the extrusion of pressure transmitter the latter half in 8 sides of baffle, pressure transmitter's detection end card is in fixed recess 9 this moment, and stretch into and detect groove 5, screw up again and adjust crank 15, the thrust size of input pressure cylinder 3 through PLC controller 2 input pressure, pressure input cylinder 3 drive push rod 12 promotes push pedal 12 and extrudees pressure transmitter's detection end, digital detection check appearance error according to showing on the pressure transmitter.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a pressure transmitter is examination and is used calibration stand which characterized in that: including calibration bench (1), the surface of calibration bench (1) is equipped with a recess, and the recess falls into fixed slot (4) and detects two regions in groove (5) through baffle (8), fixed slot (4) are used for fixed pressure transmitter, be equipped with fixed recess (9) on baffle (8), pressure transmitter's pressure detection end is fixed the inside of fixed recess (9), the pressure input system that the internally mounted that detects groove (5) comprises push pedal (11), push rod (12) and pressure input cylinder (3), pressure input system are used for exerting pressure to pressure transmitter's detection end, two parallel guide slide bar (10) each other are installed respectively at push pedal (11) both ends, push pedal (11) with guide slide bar (10) sliding connection.

2. The pressure transmitter certification calibration station of claim 1, wherein: one side of the calibration table (1) is provided with a PLC (programmable logic controller) (2), and the PLC (2) is used for controlling the output thrust of the pressure input cylinder (3).

3. The pressure transmitter certification calibration station of claim 1, wherein: the upper surface of fixed slot (4) sets up two symmetrical backup pads (6), and backup pad (6) are used for supporting pressure transmitter's upper portion, still installs locking mechanism (7) on fixed slot (4), and locking mechanism (7) are used for the lower part of fixed pressure transmitter.

4. The calibration stand for calibrating a pressure transmitter according to claim 3, wherein: locking mechanism (7) are including setting up strip groove (13) at check-up table (1) upper surface, internally mounted threaded rod (16) of strip groove (13), and extrusion post (14) that can stretch into fixed slot (4) are connected to the bottom that threaded rod (16) inserted strip groove (13), and strip groove (13) is worn out on threaded rod (16) top cup joints and adjusts crank (15).

5. The calibration stand for calibrating a pressure transmitter according to claim 4, wherein: the extrusion column (14) is arranged on the side opposite to the partition plate (8) and is a rubber column.