Multidirectional adjusting mechanism applied to valve shell sealing performance detection
By combining a multi-directional adjustment mechanism and an optical positioning probe, the valve body sealing test is automated, solving the problem of time-consuming and labor-intensive manual operation and improving the level of intelligence and the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU SHENGFENG MASCH TECH CO LTD
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing methods for testing valve body sealing rely on manual operation, which is time-consuming, labor-intensive, and lacks a high degree of automation.
It adopts a multi-directional adjustment mechanism, including components such as a horizontal main frame, an electrically controlled side baffle, a side adjustment disc, and an air pump. It automatically adjusts and inflates through an electronic control system, and achieves automated detection in conjunction with an optical positioning probe.
It automates valve body sealing testing, saving time and effort, has a wide range of applications, and greatly improves the level of intelligence.
Smart Images
Figure CN121898708A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of valve shell sealing detection and adjustment technology, and in particular to a multi-directional adjustment mechanism for valve shell sealing detection. Background Technology
[0002] The valve body is the most important outer casing component of a valve. As the main structure of the valve, it bears the entire pressure of the medium in the pipeline and provides a sealed cavity for its internal opening and closing components. The valve body typically has flanges or threaded connections at both ends for connecting and securing the valve to the piping system.
[0003] Sealing performance is the most important performance indicator of a valve body, and the quality of its internal sealing directly determines its working performance and effectiveness. Currently, the method for testing the sealing performance of valve bodies involves personnel sealing the external connection ports of the valve body, then filling it with fluid, and judging the sealing performance based on the internal pressure change. This testing method is simple and convenient, but it is time-consuming and labor-intensive, and its level of automation is very limited. Summary of the Invention
[0004] The technical problem to be solved by the present invention is that the current method for testing the sealing performance of valve housings is to have personnel perform sealing assembly on the external connection ports of the valve housing, which is time-consuming and labor-intensive and has very limited intelligence.
[0005] The technical solution adopted by the present invention to solve its technical problem is: a multi-directional adjustment mechanism for valve shell sealing detection, including a horizontal main frame and a transverse conveyor belt. Electrically controlled side baffles are movably mounted on both sides of the upper end of the horizontal main frame. Electrically controlled side adjustment discs are movably mounted on the side walls of the electrically controlled side baffles. Electrically controlled internal material guide seats are movably mounted inside the electrically controlled side adjustment discs. Electrically controlled side limiting guide rails are hinged to the inner side of the electrically controlled side baffles. Electrically controlled side material guide seats are movably mounted on one side of the electrically controlled side limiting guide rails. An electrically controlled air pump is installed inside the horizontal main frame below the transverse conveyor belt. The air outlet of the electrically controlled air pump is connected to the electrically controlled internal material guide seats and the electrically controlled side material guide seats respectively through a side guide pipe.
[0006] The upper surface of the horizontal main frame is equipped with embedded translation guide rails on both sides of the transverse conveyor belt.
[0007] The electrically controlled lateral baffle includes an electrically controlled lead screw installed inside the embedded translation guide rail, an internally threaded translation block threaded onto the electrically controlled lead screw, and a lateral baffle fixed onto the internally threaded translation block.
[0008] The side baffle has a circular assembly through hole inside, and an annular guide rail is installed inside the circular assembly through hole. The electrically controlled side adjustment disc is movably installed inside the annular guide rail.
[0009] The electrically controlled lateral adjustment disc includes a lateral adjustment ring movably inserted into the annular guide rail, a lateral adjustment motor fixed on the side wall of the annular guide rail, and an adjustment gear for driving the connection between the outer tooth groove of the lateral adjustment ring and the lateral adjustment motor.
[0010] The electrically controlled internal guide seat includes a strip guide rail fixed inside the lateral adjustment ring, a first sliding adjustment block slidably installed inside the strip guide rail, a first electrically controlled lead screw installed on the inner guide groove of the strip guide rail, and a first electrically controlled connection control valve fixedly installed inside the first sliding adjustment block.
[0011] The electrically controlled lateral limiting guide rail includes a flip-out extrusion frame hinged to the inner side of the electrically controlled lateral baffle, a lateral guide rail movably installed inside the flip-out extrusion frame, and a lateral support rod for controlling the flip-out extrusion frame.
[0012] The electrically controlled side guide seat includes a second sliding adjustment block slidably installed inside the side guide rail, a second electrically controlled lead screw installed on the inner guide groove of the side guide rail, and a second electrically controlled connection control valve fixedly installed inside the second sliding adjustment block.
[0013] The first and second electrically controlled valves are fitted with detachable sealed covers that connect to the flow inlets of the valve bodies.
[0014] Optical positioning probes are fixedly installed on the first and second sliding adjustment blocks.
[0015] The beneficial effects of this invention are: (1) A multi-directional adjustment mechanism for valve shell sealing detection is provided on both sides of the upper end of the horizontal main frame. The electric control side baffle controls the electric control side adjustment plate on its side wall to adjust horizontally, thereby controlling the electric control internal material guide seat inside the guide rail of the electric control side adjustment plate to press against the openings at both ends of the valve shell from both sides. An electric control side limit guide rail is hinged on the inner side of the electric control side baffle. The electric control side limit guide rail controls the electric control side material guide seat inside to press and close the opening on the arc surface of the valve shell. The electric control air pump inside the horizontal main frame is used to fill the valve shell with air, thereby completing automatic control without manual operation, saving time and effort. (2) By fixing optical positioning probes on the first sliding adjustment block and the second sliding adjustment block, the electrically controlled internal guide seat and the electrically controlled side guide seat are automatically adjusted by optical positioning. With their automatic positioning and control, the level of intelligence is greatly improved. (3) The entire equipment automatically adapts to valve bodies of different specifications and sizes by means of electrically controlled lateral baffle translation and electrically controlled lateral limit guide rail flipping, and has a wide range of applications. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the structure of the electrically controlled lateral adjustment disc, the electrically controlled internal guide seat, the electrically controlled lateral limit guide rail, and the electrically controlled lateral guide seat in this invention.
[0019] Figure 3 This is a side view of the present invention.
[0020] In the diagram: 1. Horizontal main frame; 2. Transverse conveyor belt; 3. Electrically controlled side baffle; 31. Electrically controlled lead screw; 32. Internally threaded translation block; 33. Side baffle; 34. Circular guide rail; 4. Electrically controlled side adjustment disc; 41. Side adjustment ring; 42. Side adjustment motor; 43. Adjustment gear; 5. Electrically controlled internal guide seat; 51. Strip guide rail; 52. First sliding adjustment block; 53. First electrically controlled lead screw; 54. First electrically controlled connection control valve; 6. Electrically controlled side limit guide rail; 61. Tilting extrusion frame; 62. Side guide rail; 63. Side support rod; 7. Electrically controlled side guide seat; 71. Second sliding adjustment block; 72. Second electrically controlled lead screw; 73. Second electrically controlled connection control valve; 8. Electrically controlled air pump; 9. Side guide pipe; 10. Embedded translation guide rail; 11. Detachable sealed cover; 12. Optical positioning probe. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Figure 1 , Figure 2 and Figure 3The multi-directional adjustment mechanism shown is used for valve body sealing detection. It includes a horizontal main frame 1 and a transverse conveyor belt 2. Electrically controlled side baffles 3 are movably mounted on both sides of the upper end of the horizontal main frame 1. Electrically controlled side adjustment discs 4 are movably mounted on the side walls of the electrically controlled side baffles 3. Electrically controlled internal guide seats 5 are movably mounted inside the electrically controlled side adjustment discs 4. Electrically controlled side limit guide rails 6 are hinged to the inner side of the electrically controlled side baffles 3. Electrically controlled side guide seats 7 are movably mounted on one side of the electrically controlled side limit guide rails 6. An electrically controlled air pump 8 is installed inside the horizontal main frame 1 below the transverse conveyor belt 2. The air outlet of the electrically controlled air pump 8 is connected to the electrically controlled internal guide seats 5 and the electrically controlled side guide seats 7 through a lateral guide pipe 9.
[0024] To facilitate translation adjustment, embedded translation guide rails 10 are installed on both sides of the horizontal main frame 1 on the upper surface of the horizontal conveyor belt 2.
[0025] To facilitate the adjustment of the spacing, the electrically controlled side baffle 3 includes an electrically controlled lead screw 31 installed inside the embedded translation guide rail 10, an internally threaded translation block 32 threaded onto the electrically controlled lead screw 31, and a side baffle 33 fixed onto the internally threaded translation block 32.
[0026] The electric control screw 31 rotates, driving the internal thread translation block 32 to translate along the interior of the embedded translation guide rail 10.
[0027] To facilitate lateral movement assembly, a circular assembly through hole is provided inside the side baffle 33, and an annular guide rail 34 is installed inside the circular assembly through hole. The electrically controlled lateral adjustment disc 4 is movably installed inside the annular guide rail 34.
[0028] To facilitate rotational adjustment, the electrically controlled lateral adjustment disc 4 includes a lateral adjustment ring 41 movably inserted into the annular guide rail 34, a lateral adjustment motor 42 fixed on the side wall of the annular guide rail 34, and an adjustment gear 43 for driving the connection between the outer tooth groove of the lateral adjustment ring 41 and the lateral adjustment motor 42.
[0029] The lateral adjustment motor 42 drives the lateral adjustment ring 41 to rotate along the annular guide rail 34 by meshing with the adjustment gear 43 on the rotating shaft and the outer tooth groove of the lateral adjustment ring 41, thereby changing the angle.
[0030] To facilitate the electrically controlled sliding adjustment, the electrically controlled internal guide seat 5 includes a strip guide rail 51 fixed inside the lateral adjustment ring 41, a first sliding adjustment block 52 slidably installed inside the strip guide rail 51, a first electrically controlled lead screw 53 installed on the inner guide groove of the strip guide rail 51, and a first electrically controlled connection control valve 54 fixedly installed inside the first sliding adjustment block 52.
[0031] The first electrically controlled lead screw 53 drives the first sliding adjustment block 52 to slide along the strip guide rail 51 for adjustment by rotation. The first electrically controlled connection control valve 54 is connected to the air outlet of the electrically controlled air pump 8 through the lateral guide pipe 9.
[0032] To facilitate the electronically controlled flipping adjustment, the electronically controlled lateral limit guide rail 6 includes a flipping compression frame 61 hinged to the inner side of the electronically controlled lateral baffle 3, a lateral guide rail 62 movably installed inside the flipping compression frame 61, and a lateral support rod 63 for controlling the flipping compression frame 61.
[0033] The side support rod 63 controls the flipping and adjusting of the extrusion frame 61 by extending and retracting. The installation and adjustment methods of the side guide rail 62 and the flipping and adjusting frame 61 are the same as those of the annular guide rail 34 and the side adjusting ring 41.
[0034] To facilitate the electrically controlled sliding adjustment, the electrically controlled side guide seat 7 includes a second sliding adjustment block 71 slidably installed inside the side guide rail 62, a second electrically controlled lead screw 72 installed on the inner guide groove of the side guide rail 62, and a second electrically controlled connection control valve 72 fixedly installed inside the second sliding adjustment block 71.
[0035] The second electrically controlled lead screw 72 drives the second sliding adjustment block 71 to slide along the lateral guide rail 62 for adjustment by rotation. The second electrically controlled connection control valve 72 is connected to the air outlet of the electrically controlled air pump 8 through the lateral guide pipe 9. Pressure sensor modules are set at the connection ends of the first electrically controlled connection control valve 54 and the second electrically controlled connection control valve 72 to facilitate monitoring of internal pressure.
[0036] To match the flow port of the valve housing, the first electrically controlled connection control valve 54 and the second electrically controlled connection control valve 72 are fitted with a detachable sealing cover 11 that matches the flow port of the valve housing.
[0037] When the first electrically controlled connection control valve 54 and the second electrically controlled connection control valve 72 are respectively squeezed towards the outer opening of the valve body, the removable sealing cover 11 can ensure the sealing with the valve body guide port.
[0038] To facilitate optical positioning, an optical positioning probe 12 is fixedly installed on the automatically controlled electrically controlled side baffle 3, electrically controlled side adjusting disc 4, electrically controlled internal guide seat 5, electrically controlled side limiting guide rail 6, and electrically controlled side guide seat 7, as well as on the first sliding adjusting block 52 and the second sliding adjusting block 71.
[0039] The optical positioning probe 12 determines the position of the external opening of the valve housing by optically scanning the valve housing on the transverse conveyor belt 2.
[0040] Equipment working process The operator places the valve body to be tested smoothly on the horizontal conveyor belt 2. After starting the equipment, the horizontal conveyor belt 2 runs at a constant speed under the drive mechanism, transporting the valve body to the core testing area of the horizontal main frame 1. When the front end of the valve body moves into the testing area, the optical positioning probe 12 on the first sliding adjustment block 52 senses the position, the horizontal conveyor belt 2 stops running, and the valve body is accurately positioned at the testing station, awaiting subsequent operations.
[0041] Once the valve body is in place, the optical positioning probes 12 on the first sliding adjustment block 52 and the second sliding adjustment block 71 immediately activate to perform an all-around optical scan of the valve body. During the scan, the optical positioning probes 12 adjust the scanning angle through their own fine-tuning mechanism to ensure that the concealed position of the arc-shaped flow guide port can be captured. The scan data is transmitted to the control unit in real time, and the control unit completes data parsing within 1 second, constructs a dedicated digital model of the valve body, and automatically generates parameter commands for adjustment, sealing, and detection.
[0042] The two electric control screws 31 rotate simultaneously, driving the internal thread translation block 32 and the side baffle 33 to move along the embedded translation guide rail 10 until the distance between the two side baffles 3 and the valve body length does not exceed ±0.1mm. After the distance is adjusted to the correct position, the electric control screw 31 stops rotating, and the internal thread translation block 32 is fixed in position by a self-locking structure to prevent displacement during the detection process.
[0043] The lateral adjustment motor 42 starts and, through the meshing of the adjustment gear 43 with the tooth groove of the lateral adjustment ring 41, drives the lateral adjustment ring 41 to rotate. It receives the angle feedback signal from the optical positioning probe 12 in real time until the angle of the electrically controlled internal guide seat 5 is completely consistent with the angle of the guide port on the end face of the valve body. Then the adjustment motor stops and locks.
[0044] The side support rod 63 extends according to the preset stroke, pushing the flipping extrusion frame 61 to flip. The flipping angle is monitored in real time by the optical positioning probe 12. When the sealing end of the electrically controlled side guide seat 7 is aligned with the arc-shaped guide port, the side support rod 63 stops extending and is fixed by the hydraulic lock, thus completing the lateral adjustment.
[0045] The first solenoid screw 53 and the second solenoid screw 72 rotate synchronously, driving the first sliding adjustment block 52 and the second sliding adjustment block 71 to slide towards the valve body, respectively. During the sliding process, the optical positioning probe 12 continuously monitors the distance between the sealing component and the guide port. When the detachable sealing cover 11 is 5mm away from the edge of the guide port, the sliding speed switches from high speed to low speed to avoid impacting the valve body.
[0046] When the detachable sealing cover 11 is tightly fitted against the edge of the guide port, the pressure sensor module feeds back a contact pressure signal, and the control unit commands the first solenoid screw 53 and the second solenoid screw 72 to stop rotating, and the sealing component is fixed in position by a mechanical lock. At this time, the valve cores of the first solenoid valve 54 and the second solenoid valve 73 automatically close, and a sealed cavity is formed inside the valve body.
[0047] After the seal is confirmed, the electronically controlled air pump 8 starts, and compressed gas is injected into the valve body through the side guide pipe 9. The inflation process is divided into two stages: the first stage is rapid inflation, and when the pressure reaches 80% of the preset detection pressure, it switches to slow inflation to avoid pressure shock damaging the valve body; when the pressure reaches the preset value, the electronically controlled air pump 8 stops working, and the one-way valve on the side guide pipe 9 closes to maintain stable pressure in the cavity.
[0048] The pressure sensor module begins to continuously monitor pressure changes. After the monitoring time reaches a preset value, the control unit analyzes the pressure data: if the pressure does not drop, it is deemed qualified, the control unit records the qualified information, and at the same time, the valve cores of the first electrically connected control valve 54 and the second electrically connected control valve 73 open to release the gas in the chamber; if the pressure drops beyond the threshold, it is deemed unqualified, the control unit immediately issues an alarm signal, records the unqualified information, and retains the pressure change curve for easy tracing of the leak point later.
[0049] After the inspection is completed, all components are reset in reverse order: the side support rod 63 retracts, and the flipping extrusion frame 61 flips and resets; the first electric control screw 53 and the second electric control screw 72 rotate in opposite directions, and the sealing component returns to its initial position; the electric control screw 31 rotates in opposite directions, and the side baffle 33 moves and resets. After the reset is completed, the horizontal conveyor belt 2 restarts. If the valve shell is qualified, it is conveyed to the qualified product unloading area; if it is unqualified, it is conveyed to the unqualified product temporary storage area, waiting for subsequent manual re-inspection.
[0050] When changing to valve bodies of different specifications, there is no need to stop the machine to adjust parameters: after the new valve body is loaded, the optical positioning probe 12 will automatically rescan and reposition. Based on the new detection data, the control unit automatically adjusts the rotation stroke of the electric control screw 31, the rotation angle of the lateral adjustment motor 42, the extension and retraction of the side support rod 63, and the sliding stroke of the sealing components, achieving seamless switching between valve bodies of different specifications and meeting the requirements for continuous batch testing.
[0051] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A multi-directional adjustment mechanism for valve body sealing detection, comprising a horizontal main frame (1) and a transverse conveyor belt (2), characterized in that: The horizontal main frame (1) is slidably equipped with electrically controlled side baffles (3) on both sides of its upper end. An electrically controlled side adjustment disc (4) is rotatably mounted on the inner wall of the electrically controlled side baffle (3). An electrically controlled internal guide seat (5) for sealing the flow ports at both ends of the valve housing is slidably mounted inside the electrically controlled side adjustment disc (4). A reversible electrically controlled side limiting guide rail (6) is hinged to the inner side of the electrically controlled side baffle (3). An electrically controlled lateral guide seat (7) for sealing the flow port of the arc-shaped surface of the valve body is slidably mounted on the controlled lateral limit guide rail (6); an electrically controlled air pump (8) is fixedly installed inside the horizontal main frame (1) below the horizontal conveyor belt (2). The air outlet of the electrically controlled air pump (8) is connected to the electrically controlled internal guide seat (5) and the electrically controlled lateral guide seat (7) through the lateral flow pipe (9) respectively, and is used to pressurize the sealed valve body to test the sealing performance.
2. The multi-directional adjustment mechanism for valve body sealing detection according to claim 1, characterized in that: The horizontal main frame (1) is fixedly equipped with embedded translation guide rails (10) on both sides of the horizontal conveyor belt (2) on its upper surface, and the electrically controlled side baffle (3) is slidably engaged with the embedded translation guide rails (10).
3. The multi-directional adjustment mechanism for valve body sealing detection according to claim 2, characterized in that: The electrically controlled side baffle (3) includes an electrically controlled lead screw (31) rotatably installed inside the embedded translation guide (10), an internal thread translation block (32) threadedly fitted with the electrically controlled lead screw (31), and a side baffle (33) fixedly connected to the internal thread translation block (32). The electrically controlled lead screw (31) rotates to drive the internal thread translation block (32) to translate along the embedded translation guide (10).
4. The multi-directional adjustment mechanism for valve body sealing detection according to claim 1, characterized in that: The side baffle (33) has a through circular mounting hole, and an annular guide rail (34) is fixedly installed inside the circular mounting hole. The electrically controlled side adjustment disc (4) is rotatably mounted inside the annular guide rail (34).
5. The multi-directional adjustment mechanism for valve body sealing detection according to claim 4, characterized in that: The electrically controlled lateral adjustment disc (4) includes a lateral adjustment ring (41) rotatably inserted into the annular guide rail (34), a lateral adjustment motor (42) fixedly installed on the side wall of the annular guide rail (34), and an adjustment gear (43) fixedly installed on the output shaft of the lateral adjustment motor (42). The outer side wall of the lateral adjustment ring (41) is provided with a tooth groove, and the adjustment gear (43) meshes with the tooth groove to drive the lateral adjustment ring (41) to rotate around the axis of the annular guide rail (34).
6. The multi-directional adjustment mechanism for valve body sealing detection according to claim 5, characterized in that: The electrically controlled internal guide seat (5) includes a strip guide rail (51) fixedly connected inside the lateral adjustment ring (41), a first sliding adjustment block (52) slidably mounted inside the strip guide rail (51), a first electrically controlled lead screw (53) rotatably mounted on the inner guide groove of the strip guide rail (51), and a first electrically controlled connection control valve (54) fixedly mounted inside the first sliding adjustment block (52). The first sliding adjustment block (52) is threadedly engaged with the first electrically controlled lead screw (53), and the first electrically controlled lead screw (53) rotates to drive the first sliding adjustment block (52) to slide along the strip guide rail (51).
7. The multi-directional adjustment mechanism for valve body sealing detection according to claim 1, characterized in that: The electrically controlled lateral limiting guide rail (6) includes a flipping extrusion frame (61) hinged on the inner side of the electrically controlled lateral baffle (3), a lateral guide rail (62) movably installed inside the flipping extrusion frame (61), and a side support rod (63) hinged at both ends to the electrically controlled lateral baffle (3) and the flipping extrusion frame (61) respectively. The side support rod (63) extends and retracts to drive the flipping extrusion frame (61) to flip around the hinge point.
8. The multi-directional adjustment mechanism for valve body sealing detection according to claim 7, characterized in that: The electrically controlled side guide seat (7) includes a second sliding adjustment block (71) slidably mounted inside the side guide rail (62), a second electrically controlled lead screw (72) rotatably mounted on the inner guide groove of the side guide rail (62), and a second electrically controlled connection control valve (73) fixedly mounted inside the second sliding adjustment block (71). The second sliding adjustment block (71) is threadedly engaged with the second electrically controlled lead screw (72), and the rotation of the second electrically controlled lead screw (72) drives the second sliding adjustment block (71) to slide along the side guide rail (62). The connection ends of the first electrically controlled connection control valve (54) and the second electrically controlled connection control valve (73) are both equipped with pressure sensor modules.
9. The multi-directional adjustment mechanism for valve body sealing detection according to claim 8, characterized in that: The first electrically controlled connection control valve (54) and the second electrically controlled connection control valve (73) are both fitted with a detachable sealing cover (11) that is adapted to the valve body guide port. The detachable sealing cover (11) is used to seal the connection between the valve body guide port and the control valve.
10. The multi-directional adjustment mechanism for valve body sealing detection according to claim 8, characterized in that: Optical positioning probes (12) are fixedly installed on the first sliding adjustment block (52) and the second sliding adjustment block (71). The optical positioning probes (12) are used to collect information on the outer dimensions of the valve body, the position and angle of the flow guide.