Pneumatic angle seat valve fatigue testing machine

Abstract

The utility model discloses a pneumatic angle seat valve fatigue testing machine, which comprises a bottom plate and a connection air guide mechanism, the connection air guide mechanism is arranged on the bottom plate and comprises an air inlet pipe, the air inlet pipe is arranged at the top of the bottom plate, a pneumatic angle seat valve body communicated with the air inlet pipe is arranged on the right side of the air inlet pipe, and the pneumatic angle seat valve body is arranged on the right side of the air inlet pipe. An air guide pipe and a control mechanism which communicate with the pneumatic angle seat valve body are arranged on the right side of the pneumatic angle seat valve body, the control mechanism is arranged on the bottom plate and comprises a connecting plate, and the connecting plate is installed on the left side of the top of the bottom plate. Through mutual cooperation of the air inlet pipe, the air guide pipe, the supporting plate, the connecting plate, the fixing shell, the sealing plate, the extrusion block, the pressure sensor, the fixing block, the check block, the fixing rod, the elastic piece and the exhaust pipe, the fatigue resistance degree of the pneumatic angle seat valve can be automatically tested, the situation that the valve needs to be opened and closed through manual operation is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic angle seat valve testing, in particular to a pneumatic angle seat valve fatigue testing machine. Background Art

[0002] Pneumatic angle seat valves are widely used for short-term frequent start-ups. They are characterized by sensitive response and accurate action. When used with solenoid valves, pneumatic control can accurately control the flow of gas and liquid. Pneumatic angle seat valves can be divided into single-acting and double-acting according to the cylinder. Single-acting (the pneumatic head is usually one hole); working principle; according to the spring reset to achieve the opening and closing functions, they are divided into normally open type and normally closed type. Double-acting (the pneumatic head is usually two holes); working principle: air is supplied to control its switch. During the production and processing of pneumatic angle seat valves, fatigue tests need to be performed on them, so that the pneumatic angle seat valve opens and closes the valve of the valve body at normal temperature for a certain number of times to check the degree of wear of the sealing components and other components, so as to determine whether the service life of the valve body meets the design requirements.

[0003] However, the valve body of the traditional pneumatic angle seat valve is usually operated manually, which not only reduces the work efficiency, but also is time-consuming and labor-intensive. For this reason, we provide a pneumatic angle seat valve fatigue testing machine. Utility Model Content

[0004] The utility model aims to provide a pneumatic angle seat valve fatigue testing machine to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a pneumatic angle seat valve fatigue testing machine, comprising:

[0006] Base plate;

[0007] A connecting air guide mechanism, the connecting air guide mechanism is arranged on the bottom plate, the connecting air guide mechanism includes an air inlet pipe, the air inlet pipe is arranged on the top of the bottom plate, a pneumatic angle seat valve body interconnected with the air inlet pipe is arranged on the right side of the air inlet pipe, and an air guide pipe interconnected with the air inlet valve body is arranged on the right side of the pneumatic angle seat valve body;

[0008] The control mechanism is arranged on the bottom plate, and the control mechanism comprises a connecting plate, and the connecting plate is installed on the left side of the top of the bottom plate, and a fixing shell is installed on the connecting plate.

[0009] Preferably, support plates are installed on the surface of the air inlet pipe and the surface of the air guide pipe, and the bottom of the support plate is fixedly connected to the top of the base plate.

[0010] Preferably, a sealing plate is in sliding contact with the inner wall of the fixed shell, an extrusion block is installed on the left side of the sealing plate, and a pressure sensor is installed on the left side of the inner wall of the fixed shell and at a position corresponding to the extrusion block.

[0011] Preferably, a fixing block is installed on the left side of the top and bottom of the inner wall of the fixed shell, a stopper is provided on the left side of the fixing block, a fixing rod is installed on the right side of the stopper, the right end of the fixing rod passes through the fixing block and extends to the outside thereof, and the right end of the fixing rod is fixedly connected to the left side of the sealing plate.

[0012] Preferably, an elastic member is sleeved on the surface of the fixing rod, and the elastic member is made of a spring.

[0013] Preferably, an exhaust pipe interconnected with the fixed shell is installed on the top of the right side, a solenoid valve is provided on the exhaust pipe, and a controller is installed on the left side of the bottom of the fixed shell.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can automatically test the fatigue resistance of the pneumatic angle seat valve through the mutual cooperation of the air intake pipe, the air guide pipe, the support plate, the connecting plate, the fixing shell, the sealing plate, the extrusion block, the pressure sensor, the fixing block, the stopper, the fixing rod, the elastic member and the exhaust pipe, thereby avoiding the need for manual operation to open and close the valve, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0018] Figure 3 It is a structural cross-sectional view of the front view of the control mechanism of the utility model.

[0019] In the figure: 1 bottom plate, 2 connecting air guide mechanism, 21 air intake pipe, 22 pneumatic angle seat valve body, 23 air guide pipe, 24 support plate, 3 control mechanism, 31 connecting plate, 32 fixed shell, 33 sealing plate, 34 extrusion block, 35 pressure sensor, 36 fixed block, 37 stopper, 38 fixed rod, 39 elastic member, 310 exhaust pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 A pneumatic angle seat valve fatigue testing machine comprises: a base plate 1 and a connecting air guide mechanism 2, the connecting air guide mechanism 2 is arranged on the base plate 1, the connecting air guide mechanism 2 comprises an air intake pipe 21, the air intake pipe 21 is arranged on the top of the base plate 1, a pneumatic angle seat valve body 22 interconnected with the air intake pipe 21 is arranged on the right side of the air intake pipe 21, an air guide pipe 23 interconnected with the air intake pipe 23 is arranged on the right side of the pneumatic angle seat valve body 22, the left and right sides of the pneumatic angle seat valve body 22 are respectively connected to the air intake pipe 21 and the air guide pipe 23 through flanges, the surface of the air intake pipe 21 and the surface of the air guide pipe 23 are fixedly connected with a support plate 24, and the bottom of the support plate 24 is fixedly connected to the top of the base plate 1.

[0022] Furthermore, the two pipes on the pneumatic angle seat valve body 22 are respectively connected with air supply pipes, and the air supply pipes are provided with solenoid valves. Since the working principle of the pneumatic angle seat valve body 22 is an existing public technology, it will not be elaborated in detail here.

[0023] The control mechanism 3 is arranged on the bottom plate 1. The control mechanism 3 includes a connecting plate 31, which is installed on the left side of the top of the bottom plate 1. A fixed shell 32 is fixedly connected to the connecting plate 31. A sealing plate 33 is slidably contacted on the inner wall of the fixed shell 32. An extrusion block 34 is fixedly connected to the left side of the sealing plate 33. A pressure sensor 35 is fixedly connected to the left side of the inner wall of the fixed shell 32 and the position corresponding to the extrusion block 34. A fixed block 36 is fixedly connected to the left side of the top and bottom of the inner wall of the fixed shell 32. A stopper is arranged on the left side of the fixed block 36. Block 37, the right side of the block 37 is in contact with the left side of the fixed block 36, the right side of the block 37 is fixedly connected with a fixing rod 38, the right end of the fixing rod 38 passes through the fixing block 36 and extends to the outside thereof, the right end of the fixing rod 38 is fixedly connected with the left side of the sealing plate 33, the surface of the fixing rod 38 is sleeved with an elastic member 39, the elastic member 39 is made of a spring, the top of the right side of the fixed shell 32 is fixedly connected with an exhaust pipe 310 interconnected with it, the exhaust pipe 310 is provided with a solenoid valve, and the left side of the bottom of the fixed shell 32 is fixedly connected with a controller.

[0024] The control methods of the solenoid valve on the air supply pipe, the pressure sensor 35 and the solenoid valve on the exhaust pipe 310 are all controlled by the controller matched therewith, and the control circuit can be realized by simple programming by technicians in this field. It is common knowledge in this field and will not be elaborated here.

[0025] Through the cooperation of the air inlet pipe 21, the air guide pipe 23, the support plate 24, the connecting plate 31, the fixed shell 32, the sealing plate 33, the extrusion block 34, the pressure sensor 35, the fixed block 36, the stopper 37, the fixed rod 38, the elastic member 39 and the exhaust pipe 310, the fatigue resistance of the pneumatic angle seat valve can be automatically tested, avoiding the need for manual operation to open and close the valve, thereby improving work efficiency.

[0026] When in use, the two ends of the pneumatic angle seat valve body 22 are connected to the air inlet pipe 21 and the air guide pipe 23 through flanges respectively, and the external air enters the interior of the pneumatic angle seat valve body 22 through the air inlet pipe 21, and the solenoid valve located on the top air supply pipe is opened by the controller, so that the pneumatic angle seat valve body 22 is in an open state, so that the gas enters the interior of the fixed shell 32 through the air guide pipe 23, and the gas drives the sealing plate 33 to move to the left, and the sealing plate 33 squeezes the elastic member 39 to the left to move, and the sealing plate 33 drives the squeezing block 34 to move to the left. When the squeezing block 34 and the pressure sensor 35 come into contact, the pressure sensor 35 senses the pressure value and transmits the signal to the controller, and the controller closes the solenoid valve located on the top air supply pipe and opens the solenoid valve located on the bottom air supply pipe, thereby making the pneumatic angle seat valve body 22 The pneumatic angle seat valve body 22 is in a closed state, and then the solenoid valve on the exhaust pipe 310 is opened, so that the gas in the fixed shell 32 is discharged through the exhaust pipe 310. The elastic force of the elastic member 39 drives the sealing plate 33 to move rightward to return to its original position, and then the valve on the pneumatic angle seat valve body 22 is opened again, so that the gas enters the fixed shell 32 again, and the process is repeated in sequence. By recording the number of times the pneumatic angle seat valve body 22 is opened and closed every day, when the time interval from a single start to closing changes, the performance of the pneumatic angle seat valve body 22 is tested regularly. When the performance of the pneumatic angle seat valve body 22 is tested to have problems, the internal structure of the pneumatic angle seat valve body 22 is checked for damage. If structural damage is detected, the corresponding fatigue life of the pneumatic angle seat valve body 22 is measured by recording the time and the number of times the pneumatic angle seat valve body 22 is opened and closed.

[0027] To sum up: the pneumatic angle seat valve fatigue testing machine solves the problems raised in the above-mentioned background technology through the mutual cooperation of the air intake pipe 21, the air guide pipe 23, the support plate 24, the connecting plate 31, the fixed shell 32, the sealing plate 33, the extrusion block 34, the pressure sensor 35, the fixed block 36, the stopper 37, the fixed rod 38, the elastic part 39 and the exhaust pipe 310.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic angle seat valve fatigue testing machine, characterized in that: include: Bottom plate (1); A connecting air guide mechanism (2), the connecting air guide mechanism (2) being arranged on the bottom plate (1), the connecting air guide mechanism (2) comprising an air intake pipe (21), the air intake pipe (21) being arranged on the top of the bottom plate (1), a pneumatic angle seat valve body (22) being arranged on the right side of the air intake pipe (21) and being in communication with the pneumatic angle seat valve body (22), and an air guide pipe (23) being arranged on the right side of the pneumatic angle seat valve body (22) and being in communication with the pneumatic angle seat valve body; A control mechanism (3), the control mechanism (3) is arranged on the base plate (1), the control mechanism (3) comprises a connecting plate (31), the connecting plate (31) is installed on the left side of the top of the base plate (1), and a fixing shell (32) is installed on the connecting plate (31).

2. A pneumatic angle seat valve fatigue testing machine according to claim 1, characterized in that: A support plate (24) is installed on the surface of the air inlet pipe (21) and the surface of the air guide pipe (23), and the bottom of the support plate (24) is fixedly connected to the top of the bottom plate (1).

3. A pneumatic angle seat valve fatigue testing machine according to claim 2, characterized in that: A sealing plate (33) is in sliding contact with the inner wall of the fixed shell (32), an extrusion block (34) is installed on the left side of the sealing plate (33), and a pressure sensor (35) is installed on the left side of the inner wall of the fixed shell (32) and at a position corresponding to the extrusion block (34).

4. A pneumatic angle seat valve fatigue testing machine according to claim 3, characterized in that: A fixing block (36) is installed on the left side of the top and bottom of the inner wall of the fixing shell (32), a stopper (37) is arranged on the left side of the fixing block (36), a fixing rod (38) is installed on the right side of the stopper (37), the right end of the fixing rod (38) passes through the fixing block (36) and extends to the outside thereof, and the right end of the fixing rod (38) is fixedly connected to the left side of the sealing plate (33).

5. The pneumatic angle seat valve fatigue testing machine according to claim 4, characterized in that: An elastic member (39) is sleeved on the surface of the fixing rod (38), and the elastic member (39) is made of a spring.

6. A pneumatic angle seat valve fatigue testing machine according to claim 5, characterized in that: An exhaust pipe (310) which is in communication with the fixed shell (32) is installed on the top of the right side thereof, and a solenoid valve is provided on the exhaust pipe (310). A controller is installed on the left side of the bottom of the fixed shell (32).

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