A comprehensive performance testing machine for molded packing

Abstract

The present invention discloses a comprehensive performance testing machine for molded packing, belonging to the technical field of packing performance testing. It aims to solve the problems that the existing one lacks a corresponding pressure regulating structure and cannot perform the performance test of the packing under high-speed rotation. It includes an installation tank and an inflation tank. An installation pipe is installed on one end face of the installation tank corresponding to the inflation tank. A power motor is installed on the side of the inflation tank. The packing is added into the interior of the packing storage cavity and then sealed by a pressing disc, thus completing the filling of the packing. Then the power motor is made to work, which drives the main shaft to rotate. When the main shaft rotates, the inflation tank is driven to work through a transmission structure, so that the external air flow can enter the interior of the installation tank through the air inlet pipe, thereby increasing the air pressure inside the installation tank, simulating the working state of the packing under high-speed rotation and high pressure, and thus meeting the test requirements for the packing performance.

Description

Technical Field

[0001] A comprehensive performance testing machine for molded packing. The present invention belongs to the technical field of packing performance testing, and particularly relates to the technical field of comprehensive performance testing of molded packing. Background Art

[0002] In high-temperature and high-pressure positions of various valves and pumps in chemical plants and power plants, due to insufficient sealing performance, a certain amount of packing needs to be added to improve the sealing performance. However, the packing will wear after being used for a certain period of time. In order to ensure the quality of the packing, it is necessary to detect the performance of the packing, so as to provide relatively accurate data for the packing performance.

[0003] Application No. 201811092375.X discloses a vertical valve packing testing machine, which includes a pneumatic device, a movable upper plate, sensors, a valve stem, a packing gland, a packing sleeve, a protective cover, a column, a packing box, a stuffing box, an electric heater, a medium inlet, a working panel and a bottom plate. A protective cover is installed at the side end of the packing sleeve, a working panel is installed at the bottom end of the packing sleeve, a packing box is installed at the bottom end of the working panel, a bottom plate is installed at the bottom end of the packing box, and an anti-slip and shock-absorbing layer is installed at the bottom end of the bottom plate.

[0004] Although it can simulate the packing usage conditions under certain circumstances, it lacks a corresponding pressure adjustment structure and cannot perform the performance detection operation of the packing under high-speed rotation. Therefore, there are certain limitations and it cannot meet people's usage requirements. Summary of the Invention

[0005] The purpose of the present invention is to provide a comprehensive performance testing machine for molded packing to solve the above problems of the existing lack of a corresponding pressure adjustment structure and inability to perform the performance detection operation of the packing under high-speed rotation.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A comprehensive performance testing machine for molded packing includes an installation tank and an inflation tank. An installation pipe is installed on one end face of the installation tank corresponding to the inflation tank. A power motor is installed on the side of the inflation tank. A main shaft is connected to the output shaft of the power motor through a coupling. The top end of the main shaft is arranged inside the installation pipe. A packing storage cavity is arranged between the main shaft and the installation pipe. The packing storage cavity is closed by a pressing disc. An air outlet pipe and an air inlet pipe are arranged on the installation tank. The inflation tank is connected to the air inlet pipe through a pipeline. The main shaft provides the required power for the inflation tank through a transmission structure.

[0008] In the technical solution of the present application, the filler is added into the interior of the filler storage cavity and then sealed by the pressing disc, thus completing the filling of the filler. Then, the power motor is made to work, thereby driving the main shaft to rotate. When the main shaft rotates, the air charging box is driven to work through the transmission structure, so that the external air flow can enter the interior of the installation tank through the air inlet pipe, thereby increasing the air pressure inside the installation tank, thus simulating the working state of the filler under high-speed rotation and high pressure, and meeting the test requirements for the performance of the filler.

[0009] Further, two mounting holes are opened at the top end of the installation tank, and a temperature sensor and a pressure sensor are detachably mounted inside the mounting holes. A sewage discharge pipe is mounted at the bottom end of the installation tank, and sealing caps are screwed on both the sewage discharge pipe and the air outlet pipe.

[0010] Further, a connecting pipe is mounted on the side of the air inlet pipe outside the installation tank. A check valve is mounted in the air inlet pipe between the connecting pipe and the installation tank, and a check valve is also mounted inside the connecting pipe. A filter is detachably mounted on the connecting pipe.

[0011] Even further, a piston pipe is slidably mounted in the air inlet pipe between the connecting pipe and the air charging box. The bottom end of the piston pipe penetrates and extends into the interior of the air charging box. A rolling ball is rotatably mounted at the end of the piston pipe inside the air charging box. A fixed disc is mounted on the side of the piston pipe inside the air charging box. A spring is mounted between the fixed disc and the box wall of the air charging box. A bearing seat is mounted at the position corresponding to the main shaft at the top end of the air charging box.

[0012] Even further, a rotating shaft is mounted at the position below the piston pipe inside the air charging box. An inclined wheel disc and a first pulley are mounted on the rotating shaft. The inclined surface of the inclined wheel disc faces the end surface of the piston pipe, and a chute is opened at the position corresponding to the rolling ball on the inclined surface of the inclined wheel disc.

[0013] Even further, a chute is opened on the side of the air charging box below the rotating shaft. A slider is slidably mounted inside the chute. The side of the slider is connected to the groove wall of the chute through an electric push rod. A support shaft is mounted on the surface of the slider corresponding to the piston pipe. A second pulley is mounted on the support shaft at the position corresponding to the first pulley.

[0014] Even further, the diameter of the first pulley is set to be smaller than that of the second pulley. A third pulley is mounted on the main shaft at the position corresponding to the second pulley. The third pulley is connected to the second pulley through a belt.

[0015] Even further, the filter includes an outer sleeve pipe. The bottom end of the outer sleeve pipe is rotatably mounted with a chassis. A filter screen is mounted on the surface of the chassis corresponding to the connecting pipe through a support column. An opening is opened on the side of the outer sleeve pipe below the filter screen.

[0016] Furthermore, an electric heating tube is installed inside the tube wall of the installation tank.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The power motor drives the main shaft to rotate, and then controls the operation of the electric push rod to drive the second pulley to move, so that the central axes of the first pulley, the second pulley and the third pulley coincide. At this time, the first pulley does not contact the belt, which makes it easy to test the performance of the packing under normal pressure and high-speed rotation.

[0019] 2. The power motor drives the main shaft to rotate, and then controls the operation of the electric push rod to drive the second pulley to move, so that the first pulley and the second pulley are staggered. At this time, the first pulley contacts the belt, thereby driving the inclined wheel to rotate. At this time, the piston tube moves back and forth inside the intake pipe under the joint action of the inclined wheel and the spring, so that the external airflow enters the interior of the installation tank along the direction of the filter and the connecting pipe, so that the performance of the filler under high pressure and high-speed rotation can be tested.

[0020] 3. The temperature sensor and pressure sensor inside the installation tank are set to facilitate the measurement of temperature and pressure conditions, and by controlling the operation of the electric heating tube, the temperature in the installation tank can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the first cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the second cross-sectional structure of the present invention;

[0024] Figure 4 This is a partial enlarged view of the A1 end of the present invention;

[0025] 1 - Installation tank; 2 - Installation pipe; 3 - Compression disc; 4 - Packing storage cavity; 5 - Outlet pipe; 6 - Inlet pipe; 7 - Power motor; 8 - Main shaft; 9 - Inflation box; 10 - Transmission structure; 11 - Temperature sensor; 12 - Pressure sensor; 13 - Drain pipe; 14 - Sealing cap; 15 - Check valve; 16 - Connecting pipe; 17 - Filter; 18 - Piston pipe; 19 - Rolling ball; 20 - Fixed disc; 21 - Spring; 22 - Rotating shaft; 23 - Tilted wheel disc; 24 - Limit groove; 25 - Pulley one; 26 - Slide groove; 27 - Electric push rod; 28 - Slide block; 29 - Support shaft; 30 - Pulley two; 31 - Pulley three; 32 - Belt; 33 - Bearing seat; 34 - Coupling; 35 - Outer sleeve pipe; 36 - Chassis; 37 - Filter screen; 38 - Opening; 39 - Electric heating pipe. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Embodiment 1

[0028] As Figures 1 to 4 shown, a comprehensive performance testing machine for molded packing includes an installation tank 1 and an inflation box 9. An installation pipe 2 is installed on one end face of the installation tank 1 corresponding to the inflation box 9. A power motor 7 is installed on the side of the inflation box 9. A support seat is provided at a position corresponding to the lower part of the power motor 7 on the side of the inflation box 9. The output shaft of the power motor 7 is connected to a main shaft 8 through a coupling 34. The top end of the main shaft 8 is arranged inside the installation pipe 2. A packing storage cavity 4 is arranged between the main shaft 8 and the installation pipe 2. The packing storage cavity 4 is closed by a compression disc 3. An outlet pipe 5 and an inlet pipe 6 are arranged on the installation tank 1. The inflation box 9 is connected to the inlet pipe 6 through a pipeline. The main shaft 8 provides the required power for the inflation box 9 through a transmission structure 10.

[0029] In the technical solution of this application, the packing is added into the interior of the packing storage cavity 4, and then it is closed by the compression disc 3, thus completing the packing filling. Then, the power motor 7 is made to work, thereby driving the main shaft 8 to rotate. When the main shaft 8 rotates, the inflation box 9 is driven to work through the transmission structure 10, so that the external air flow can enter the interior of the installation tank 1 through the inlet pipe 6, thereby increasing the air pressure inside the installation tank 1, thus simulating the working state of the packing under high-speed rotation and high pressure, and thus meeting the test requirements for the performance of the packing.

[0030] Embodiment 2

[0031] As Figures 2 to 4As shown in the figure, on the basis of Embodiment 1, two mounting holes are provided at the top end of the mounting tank 1, and a temperature sensor 11 and a pressure sensor 12 are detachably mounted inside the mounting holes, so as to facilitate the detection of the temperature and pressure inside the mounting tank 1. A sewage discharge pipe 13 is mounted at the bottom end of the mounting tank 1, and sealing caps 14 are threadedly connected to both the sewage discharge pipe 13 and the air outlet pipe 5. The sewage discharge pipe 13 facilitates the discharge of sundries inside the mounting tank 1, and the sealing cap 14 facilitates the closing operation of the air outlet pipe 5.

[0032] A connecting pipe 16 is mounted on the side of the air inlet pipe 6 outside the mounting tank 1. A check valve 15 is mounted in the air inlet pipe 6 between the connecting pipe 16 and the mounting tank 1, and a check valve 15 is also mounted inside the connecting pipe 16. This ensures that the external air flow can enter the interior of the mounting tank 1 along the directions of the connecting pipe 16 and the air inlet pipe 6. A filter 17 is detachably mounted on the connecting pipe 16, and the filter 17 facilitates the purification operation of the incoming air flow.

[0033] A piston pipe 18 is slidably mounted in the air inlet pipe 6 between the connecting pipe 16 and the inflation tank 9. The bottom end of the piston pipe 18 penetrates and extends into the interior of the inflation tank 9. A rolling ball 19 is rotatably mounted at the end of the piston pipe 18 inside the inflation tank 9. A fixed disk 20 is mounted on the side of the piston pipe 18 inside the inflation tank 9, and a spring 21 is mounted between the fixed disk 20 and the wall of the inflation tank 9. The spring 21 provides the required restoring force for the piston pipe 18. Through the reciprocating movement of the piston pipe 18, the external air flow can enter the interior of the mounting tank 1. A bearing seat 33 is mounted at the top end of the inflation tank 9 corresponding to the position of the main shaft 8, which can support the main shaft 8, thus ensuring the stability of the movement.

[0034] A rotating shaft 22 is mounted inside the inflation tank 9 at a position corresponding to the lower part of the piston pipe 18. Both ends of the rotating shaft 22 are fixed inside the inflation tank 9 through bearings. An inclined wheel disc 23 and a pulley 25 are mounted on the rotating shaft 22. The inclined surface of the inclined wheel disc 23 is arranged corresponding to the end surface of the piston pipe 18. A chute 26 is provided at the position of the inclined surface of the inclined wheel disc 23 corresponding to the rolling ball 19. When the pulley 25 rotates, it drives the rotating shaft 22 to rotate, thus causing the inclined wheel disc 23 to rotate. Under the action of the spring 21, the rolling ball 19 always contacts the inclined surface of the inclined wheel disc 23. Thus, under the combined action of the rotating inclined wheel disc 23 and the spring 21, the required power can be provided for the reciprocating movement of the piston pipe 18.

[0035] Below the rotating shaft 22, a sliding groove 26 is formed on the side of the inflatable box 9. A slider 28 is slidably installed inside the sliding groove 26. The side of the slider 28 is connected to the groove wall of the sliding groove 26 through an electric push rod 27. A support shaft 29 is installed on the surface of the slider 28 corresponding to the piston tube 18. A second pulley 30 is installed at the position corresponding to the first pulley 25 on the support shaft 29. By controlling the operation of the electric push rod 27, the slider 28 can be driven to move, thereby realizing the position change of the second pulley 30.

[0036] The diameter of the first pulley 25 is set smaller than that of the second pulley 30. A third pulley 31 is installed at the position corresponding to the second pulley 30 on the main shaft 8. The third pulley 31 is connected to the second pulley 30 through a belt 32. When the second pulley 30 is directly below the first pulley 25, since the diameter of the first pulley 25 is smaller than that of the second pulley 30, the belt 32 is stretched at this time and thus will not contact the first pulley 25, that is, the rotating shaft 22 will not rotate with the rotation of the main shaft 8 at this time. When the second pulley 30 is not directly below the first pulley 25, the belt 32 contacts the first pulley 25 at this time. Therefore, when the main shaft 8 rotates, the rotating shaft 22 is driven to rotate under the transmission of the belt 32, thereby driving the inclined disk 23 to rotate.

[0037] The filter 17 includes an outer sleeve 35. A chassis 36 is rotatably installed at the bottom end of the outer sleeve 35. A filter screen 37 is installed on the surface of the chassis 36 corresponding to the connecting pipe 16 through a support column. An opening 38 is formed on the side of the outer sleeve 35 below the filter screen 37. Through the filter screen 37 inside the filter 17 for filtering, the air flow entering the installation tank 1 does not contain large-particle debris.

[0038] Embodiment 3

[0039] As Figure 2 shown, on the basis of Embodiment 2, an electric heating tube 39 is installed inside the pipe wall of the installation tank 1. By controlling the operation of the electric heating tube 39, it is convenient to adjust the temperature inside the installation tank 1.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A comprehensive performance testing machine for molded packing, comprising an installation tank (1) and an inflation tank (9), characterized in that: An installation pipe (2) is installed on one end face of the installation tank (1) corresponding to the inflation tank (9). A power motor (7) is installed on the side of the inflation tank (9). A main shaft (8) is connected to the output shaft of the power motor (7) through a coupling (34). The top end of the main shaft (8) is arranged inside the installation pipe (2). A packing storage cavity (4) is arranged between the main shaft (8) and the installation pipe (2). The packing storage cavity (4) is closed by a pressing disc (3). An air outlet pipe (5) and an air inlet pipe (6) are arranged on the installation tank (1). The inflation tank (9) is connected to the air inlet pipe (6) through a pipeline. The main shaft (8) provides the required power for the inflation tank (9) through a transmission structure (10); A connecting pipe (16) is installed on the side of the air inlet pipe (6) outside the installation tank (1). A check valve (15) is installed in the air inlet pipe (6) between the connecting pipe (16) and the installation tank (1). A check valve (15) is also installed inside the connecting pipe (16). A filter (17) is detachably installed on the connecting pipe (16); A piston pipe (18) is slidably installed in the air inlet pipe (6) between the connecting pipe (16) and the inflation tank (9). The bottom end of the piston pipe (18) penetrates and extends into the interior of the inflation tank (9). A rolling ball (19) is rotatably installed at the end of the piston pipe (18) inside the inflation tank (9). A fixed disc (20) is installed on the side of the piston pipe (18) inside the inflation tank (9). A spring (21) is installed between the fixed disc (20) and the tank wall of the inflation tank (9). A bearing seat (33) is installed at the position of the inflation tank (9) corresponding to the main shaft (8) at the top; A rotating shaft (22) is installed at the position below the piston pipe (18) inside the inflation tank (9). An inclined wheel disc (23) and a first pulley (25) are installed on the rotating shaft (22). The inclined surface of the inclined wheel disc (23) faces the end face of the piston pipe (18). A chute (26) is opened at the position of the inclined surface of the inclined wheel disc (23) corresponding to the rolling ball (19); A chute (26) is opened on the side of the inflation tank (9) below the rotating shaft (22). A slider (28) is slidably installed inside the chute (26). The side of the slider (28) is connected to the groove wall of the chute (26) through an electric push rod (27). A support shaft (29) is installed on the surface of the slider (28) corresponding to the piston pipe (18). A second pulley (30) is installed on the support shaft (29) corresponding to the position of the first pulley (25); The diameter of the first pulley (25) is set to be smaller than that of the second pulley (30). A third pulley (31) is installed at a position on the main shaft (8) corresponding to the second pulley (30). The third pulley (31) is connected to the second pulley (30) by a belt (32). When the second pulley (30) is directly below the first pulley (25), the rotating shaft (22) does not rotate along with the rotation of the main shaft (8). When the second pulley (30) is not directly below the first pulley (25), at this time the belt (32) contacts the first pulley (25), so that when the main shaft (8) rotates, the rotating shaft (22) is driven to rotate under the transmission of the belt (32), thereby driving the inclined disk (23) to rotate.

2. The comprehensive performance testing machine for molded packing according to claim 1, characterized in that: Two mounting holes are provided at the top of the mounting tank (1), and a temperature sensor (11) and a pressure sensor (12) are detachably installed inside the mounting holes. A drain pipe (13) is installed at the bottom of the mounting tank (1). Sealing caps (14) are threadedly connected to both the drain pipe (13) and the air outlet pipe (5).

3. The comprehensive performance testing machine for molded packing according to claim 1, wherein: The filter (17) includes an outer sleeve (35). A chassis (36) is rotatably installed at the bottom end of the outer sleeve (35). A filter screen (37) is installed on the surface of the chassis (36) corresponding to the connecting pipe (16) through a support column. An opening (38) is provided on the side surface of the outer sleeve (35) below the filter screen (37).

4. The comprehensive performance testing machine for molded packing according to claim 1, characterized in that: An electric heating pipe (39) is installed inside the pipe wall of the mounting tank (1).

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