CN212206899U

CN212206899U - Explosion-proof pressure tester

Info

Publication number: CN212206899U
Application number: CN201922295952.1U
Authority: CN
Inventors: 郑林; 吴佳聪; 徐立建; 徐立伟
Original assignee: Rudong Lianyi Electromechanical Co ltd
Current assignee: Rudong Lianyi Electromechanical Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-12-22
Anticipated expiration: 2029-12-19

Abstract

The utility model provides an explosion-proof pressure tester mainly comprises the triplex: clamping mechanism, oil piping system, automatically controlled data processing system. This tester mainly used tests the explosion-proof pressure of aluminum hull, and in order to improve efficiency of software testing, this tester design is two aluminum hulls of a clamping and detects explosion-proof pressure simultaneously. Therefore, the aluminum shell clamping mechanism is in a double-chuck mode, the oil way systems are two independent oil way systems, and the electric control data is processed by one PLC. The operating principle is that an operator sleeves an aluminum shell with a sleeve with a corresponding diameter into a corresponding bottom support of the lower fixing plate, the other side of the aluminum shell is also operated, a start button is pressed, and the PLC program controls the electromagnetic valve to enable the air cylinder to extend forwards to the bottom. The utility model has the advantages that: can measure a plurality of groups of samples simultaneously, and has simple structure, low cost and strong operability.

Description

Explosion-proof pressure tester

Technical Field

The invention relates to the field of explosion-proof tests, in particular to an explosion-proof pressure tester.

Background

With the progress of science and technology and industrial production, people have higher and higher requirements on intellectualization and automation, and the following automatic test aluminum shell explosion-proof press is designed for facilitating the detection operation of workers and automatically transmitting production data to an MES (manufacturing execution system) and an ERP (enterprise resource planning) system.

Disclosure of Invention

The technical problem to be solved is as follows: the explosion-proof pressure tester can quickly and accurately measure the explosion-proof performance of a plurality of groups of products simultaneously.

SUMMERY OF THE UTILITY MODEL

An explosion-proof pressure tester mainly comprises three parts: clamping mechanism, oil piping system, automatically controlled data processing system. This tester mainly used tests the explosion-proof pressure of aluminum hull, and in order to improve efficiency of software testing, this tester design is two aluminum hulls of a clamping and detects explosion-proof pressure simultaneously. Therefore, the aluminum shell clamping mechanism is in a double-chuck mode, the oil way systems are two independent oil way systems, and the electric control data is processed by one PLC. The operating principle is that an operator sleeves an aluminum shell into a corresponding bottom support of the lower fixing plate by using a first sleeve with a corresponding diameter, the other side of the aluminum shell is also operated, a starting button is pressed again, and the PLC program controls the electromagnetic valve to enable the air cylinder to extend forwards to the bottom. The top of the push rod of the cylinder is connected with the connecting rod and the upper connecting rod by a shaft, the upper connecting rod is connected with the upper fixing plate, the upper fixing plate and the lower fixing plate are fixed together by two guide pillars, and the lower connecting rod is connected with the sliding block. When the cylinder pushes forwards, the sliding block is pushed by the lower connecting rod to drive the pressure head to press downwards until the cylinder extends to the bottom. At the moment, the lower connecting rod, the upper connecting rod, the pressure head and the first sleeve are exactly positioned on the same straight line, and the pressure head tightly presses the aluminum shell on the first sleeve, so that the process of pressing the aluminum shell is finished. And the PLC controls the motor to drive the oil pump to start, and an oil outlet of the oil pump is connected to an oil conveying hole of the lower fixed plate through an oil pipe and communicated with the first sleeve until reaching the bottom of the aluminum shell. Meanwhile, a tee joint is arranged at the front end of the oil transmission hole, a pressure transmitter is arranged at the other end of the oil transmission hole, and data of the pressure transmitter is read and processed by a PLC. The oil pump continuously supplies oil to the oil circuit, and because the lower connecting rod, the upper connecting rod, the pressure head and the first sleeve of the aluminum shell clamping mechanism are all on the same straight line, a dead point is formed, the aluminum shell cannot be jacked open no matter how the oil pressure rises, and the sealing performance is ensured. After the oil pressure in the oil way is continuously increased until the limit of the aluminum shell explosion-proof valve is reached, the aluminum shell explosion-proof valve is broken, and the oil pressure flowing out of the crack is reduced to zero along with the oil pressure. In the process, the PLC reads the pressure value of the pressure transmitter all the time, the motor is closed after the maximum value of the oil pressure is read, oil is not supplied any more (the explosion-proof valve of the aluminum shell is cracked at the moment), and the read maximum value of the oil pressure is the explosion-proof pressure value of the aluminum shell. The PLC calculates and processes the maximum pressure value and then transmits the maximum pressure value to the computer system, and the MES system on the computer stores the data into the database to finish data acquisition. Meanwhile, the PLC controls the cylinder electromagnetic valve to retract the cylinder, the lower connecting rod, the sliding block and the pressure head are driven to ascend together, the pressure head is separated from the aluminum shell and the first sleeve, an operator takes out the aluminum shell which is tested, and the circulation is finished.

The utility model has the advantages that: can measure a plurality of groups of samples simultaneously, and has simple structure, low cost and strong operability.

Drawings

FIG. 1 is a front view of an explosion-proof pressure tester;

FIG. 2 is a side view of an explosion proof pressure tester;

fig. 3 is an enlarged view of the clamping mechanism.

In the figure: 1-upper fixing plate, 2-first sleeve, 3-pressure head, 4-slide block, 5-lower connecting rod, 6-guide column, 7-fixing plate, 8-upper connecting rod, 9-cylinder, 10-second sleeve, 11-nut, 12-screw and 13-oil conveying hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, in an explosion-proof pressure tester, a lower fixing plate 1 and an upper fixing plate 7 are fixedly connected through two guide posts 6, a second sleeve 10 is sleeved on the guide posts 6, the sliding block 4 is fixed on the second sleeve 10, a connecting assembly is arranged at the front part of a cylinder 9, an upper connecting rod 5 and a lower connecting rod 8 are movably connected on the connecting assembly, the upper end of the upper connecting rod 5 is connected with the upper fixing plate 7 through a connecting piece, and the lower end of the lower connecting rod 8 is connected with the sliding block 4 through a connecting piece. The first sleeve 2 is fixed on the lower fixing plate 1. The pressure head 3 is fixed on the slide block 4 and above the first sleeve 2; the oil delivery hole 13 is formed in the lower fixing plate 1, a pressure transmitter is mounted in the oil delivery hole 13, the oil delivery hole 13 is connected with an oil pump through a high-pressure oil pipe, and two groups of pressure heads 3, the first sleeve 2, the oil delivery hole 13 and the pressure transmitter are combined; the upper end of the guide post 6 is provided with a screw 12, a nut 11 is matched on the screw, and the nut 11 and the screw 12 are used for adjusting the length of the guide post 6.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The explosion-proof pressure tester is characterized by comprising a lower fixing plate (1), a clamping mechanism, a sliding block (4), guide pillars (6), an upper fixing plate (7), a telescopic structure, a second sleeve (10) and an electronic control data processing system, wherein the lower fixing plate (1) and the upper fixing plate (7) are fixedly connected through the two guide pillars (6), the second sleeve (10) is sleeved on the guide pillars (6), the sliding block (4) is fixed on the second sleeve (10), the upper part of the telescopic structure is fixed on the upper fixing plate (7), and the lower part of the telescopic structure is fixed on the sliding block (4); the clamping mechanism is arranged between the sliding block (4) and the lower fixing plate (1) and is used for testing the material to be detected; and the electric control data processing system is used for controlling the telescopic structure of the machine to work.

2. The explosion-proof pressure tester of claim 1, wherein the clamping mechanism comprises a first sleeve (2), a pressure head (3), an oil transmission hole (13), an oil pump and a pressure transmitter, the first sleeve (2) is fixed on the lower fixing plate (1); the pressure head (3) is fixed on the sliding block (4) and above the first sleeve (2); the oil conveying hole (13) is formed in the lower fixing plate (1), a pressure transmitter is installed in the oil conveying hole (13), and the oil conveying hole (13) is connected with an oil pump through a high-pressure oil pipe.

3. An explosion-proof pressure tester as claimed in claim 2, wherein the clamping mechanisms are arranged in two groups in parallel.

4. The explosion-proof pressure tester of claim 1, wherein the telescopic structure comprises a cylinder (9), an upper connecting rod (5) and a lower connecting rod (8), a connecting assembly is arranged at the front part of the cylinder (9), the upper connecting rod (5) and the lower connecting rod (8) are movably connected onto the connecting assembly, the upper end of the upper connecting rod (5) is connected with an upper fixing plate (7) through a connecting piece, and the lower end of the lower connecting rod (8) is connected with the sliding block (4) through a connecting piece.

5. The explosion-proof pressure tester of claim 1, further comprising a nut (11) and a screw (12), wherein the upper end of the guide post (6) is provided with the screw (12), the nut (11) is matched on the screw, and the nut (11) and the screw (12) are used for adjusting the length of the guide post (6).