An adaptive circulating water pump wet chamber leakage test mechanism

Abstract

The present invention relates to an adaptive circulating water pump wet chamber leakage test mechanism, which includes a water outlet centering adjustment mechanism, a water inlet centering adjustment mechanism, a product transfer and rotation mechanism, and a product positioning fixture; the water outlet centering adjustment mechanism is installed at the rear of the product transfer and rotation mechanism, the water inlet centering adjustment mechanism is supported at the middle of the product transfer and rotation mechanism, and the product positioning fixture is installed at the product transfer and rotation mechanism and is located below the water inlet product translation mechanism. The beneficial effect is that it can greatly improve the accuracy and stability of the test data. At the same time, it can also meet the needs of testing circulating water pumps of different models, and has a wider range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of water pumps, and in particular to a self-adaptive circulating water pump wet chamber leakage testing mechanism. Background Art

[0002] Currently, existing technical solutions rely on using a horizontally and vertically translating mechanism to block the inlet and outlet of a circulating water pump at a fixed position before conducting a leak test. A single test bench can only test one specific product. This disadvantage is that it cannot correct for the eccentric distance or angle between the plugging head and the axis of the product's inlet and outlet. This results in low accuracy and repeatability in leak test data, significantly impacting product quality assessment. A single leak test bench can only test one circulating water pump, limiting its scope of application.

[0003] Therefore, there is an urgent need for an adaptive circulating water pump wet chamber leakage testing mechanism that can significantly improve the accuracy and stability of test data and is applicable to circulating water pumps of different models. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an adaptive circulating water pump wet chamber leakage testing mechanism, which solves the technical problems of low accuracy and stability of test data and small scope of application in the prior art.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] The present invention provides an adaptive circulating water pump wet chamber leakage test mechanism, comprising a water outlet centering adjustment mechanism, a water inlet centering adjustment mechanism, a product transfer and rotation mechanism, and a product positioning fixture. The water outlet centering adjustment mechanism is mounted at the rear of the product transfer and rotation mechanism, the water inlet centering adjustment mechanism is supported at the middle of the product transfer and rotation mechanism, and the product positioning fixture is mounted on the product transfer and rotation mechanism and located below the water inlet product translation mechanism.

[0009] Optionally, the outlet centering adjustment mechanism includes a base, a first mounting plate, a centering adjustment assembly, a first mounting bracket, and a first plugging head. The base is mounted to the rear of the product transfer and rotation mechanism, the first mounting plate is mounted to the base so as to be movable up and down, the centering adjustment assembly is floatingly mounted within the first mounting bracket, the first mounting bracket is fixed to the first mounting plate, and the first end of the centering adjustment assembly is connected to the first plugging head.

[0010] Optionally, the centering adjustment assembly includes a rear floating seat, a first floating assembly, a self-aligning bearing, a floating swing shaft, a front floating seat, a second floating assembly, and a plug connection plate. The rear floating seat is floatably mounted within the first mounting frame via the first floating assembly, the self-aligning bearing is mounted within the rear floating seat, and the self-aligning bearing is connected to the front floating seat via the floating swing shaft. The plug connection plate is detachably mounted to the front floating seat, and the front floating seat is floatably mounted within the first mounting frame via the second floating assembly. The front end of the plug connection plate serves as the first end of the centering adjustment assembly and is connected to the first plug.

[0011] Optionally, the first floating assembly includes a first bolt and a first spring sleeved on the first bolt. The screw shaft of the first bolt consists of a smooth section and a threaded section, with the threaded section extending to the end of the screw shaft. The four ends of the rear floating seat are each provided with a first threaded hole, and the four sides of the first mounting frame are correspondingly provided with a first through hole. The first bolt is inserted through the first through hole, and the threaded portion of the first bolt is screwed into the corresponding first threaded hole in the rear floating seat. The first spring is positioned between the first mounting frame and the rear floating seat to enable the rear floating seat to float vertically and laterally.

[0012] Optionally, the second floating assembly includes a second bolt and a second spring sleeved on the second bolt. The screw shaft of the second bolt consists of a smooth section and a threaded section, with the threaded section extending to the distal end of the screw shaft. Second threaded holes are defined at each of the four ends of the front floating seat, and second through-holes are defined at the four corresponding sides of the first mounting frame. The second bolts are inserted through the second through-holes, and the threaded portions of the second bolts are screwed into the corresponding second threaded holes in the front floating seat. The second spring is positioned between the first mounting frame and the front floating seat to enable vertical and lateral floating of the front floating seat.

[0013] Optionally, the water inlet centering adjustment mechanism includes a second mounting plate, two guide shafts, a vertical push plate, two linear bearings, two fixing rings, a downward pressure drive, a large floating joint, a second mounting frame, the centering adjustment assembly, and a second plugging head. The second mounting plate is supported on the product transfer and rotation mechanism via the two guide shafts, the vertical push plate is slidably mounted on the two guide shafts via the two linear bearings, the two fixing rings are mounted on the two guide shafts, and are used to limit the maximum downward sliding distance of the two linear bearings, the downward pressure drive is mounted on the second mounting plate, and the downward pressure drive is connected to the vertical push plate via the large floating joint to drive the vertical push plate to slide up and down along the guide shafts, the second mounting frame is mounted on the bottom of the vertical push plate, the centering adjustment assembly can be floatingly mounted in the second mounting frame, and the first end of the centering adjustment assembly is connected to the second plugging head.

[0014] Optionally, the first plugging head is an internal expansion plugging head, and the second plugging head is an external expansion plugging head.

[0015] Optionally, the product transfer and rotation mechanism includes a base plate, a rotation mechanism, a transfer driver, a small floating joint, and a limit assembly. The base plate has two slide rails extending in the front-to-back direction. The rotation mechanism is slidably mounted on the slide rails. The transfer driver is mounted on the base plate, and the transfer driver is connected to the rotation mechanism via the small floating joint. The limit assemblies are mounted on the base plate and located at the front and rear ends of the two slide rails. The outlet centering adjustment mechanism is mounted on the rear of the base plate, the inlet centering adjustment mechanism is mounted in the middle of the base plate, and the product positioning fixture is mounted on the rotation mechanism.

[0016] Optionally, it also includes a photoelectric detection mechanism, which includes a photoelectric sensor, a photoelectric mounting component, a photoelectric pillar and a pillar support. The photoelectric sensor is fixed to the top of the photoelectric pillar through the photoelectric mounting component. The photoelectric pillar is supported on the pillar support. The pillar support is fixed on the base plate. The photoelectric sensor is electrically connected to the transfer driver.

[0017] Optionally, the product positioning jig includes a jig and a fastener, and the jig is fixed to the rotating mechanism via the fastener.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides an adaptive circulating water pump wet chamber leakage test mechanism. Its outlet centering adjustment mechanism can adaptively adjust the axial eccentric displacement and yaw angle for different types of circulating water pumps to completely block the circulating water pump's outlet. The outlet centering adjustment mechanism can adaptively adjust the axial eccentric displacement and yaw angle for different types of circulating water pumps to completely block the water inlet at the top of the circulating water pump. This eliminates the impact of cumulative errors caused by deviations in the positions of the water inlets and outlets of different circulating water pumps and product shell manufacturing errors on the circulating water pump wet chamber leakage test. The product transfer and rotation mechanism can transfer the circulating water pump from its initial position to the test position and rotate the circulating water pump until its outlet faces the outlet centering adjustment mechanism. The product transfer and rotation mechanism can adjust the test position of the circulating water pump accordingly according to different circulating water pump models to be compatible with multiple circulating water pump models. The product positioning fixture is used to fix the circulating water pump. Compared with the existing technology, it can significantly improve the accuracy and stability of test data. At the same time, it can also meet the needs of testing circulating water pumps of different models, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 2 is a schematic structural diagram of a dry cavity leakage test mechanism for an adaptive circulating water pump in a specific embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the structure of the adaptive circulating water pump dry cavity leakage test mechanism in a specific embodiment of the present invention;

[0023] Figure 3 2 is a schematic right side view of a dry cavity leakage test mechanism of an adaptive circulating water pump in a specific embodiment of the present invention;

[0024] Figure 4 It is a structural exploded diagram of the water outlet centering adjustment mechanism in a specific embodiment of the present invention;

[0025] Figure 5 2 is a schematic front view of a water outlet centering adjustment mechanism in a specific embodiment of the present invention;

[0026] Figure 6 yes Figure 5 Schematic diagram of the middle AA section;

[0027] Figure 7 yes Figure 5 Schematic diagram of the middle BB section;

[0028] Figure 8 yes Figure 5 Schematic diagram of the middle CC section;

[0029] Figure 9 2 is a schematic front view of a water inlet centering adjustment mechanism in a specific embodiment of the present invention;

[0030] Figure 10 yes Figure 5 Schematic diagram of the middle DD section;

[0031] Figure 11 Schematic diagram of a first plugging head and a second plugging head blocking a water outlet and a water inlet of a circulating water pump in a specific embodiment of the present invention;

[0032] Figure 12 It is a structural schematic diagram of a product transfer and rotation mechanism in a specific embodiment of the present invention;

[0033] Figure 13 is a structural schematic diagram of a photoelectric detection mechanism in a specific embodiment of the present invention;

[0034] Figure 14 It is a structural schematic diagram of a product positioning fixture in a specific embodiment of the present invention.

[0035] [Description of Reference Numerals]

[0036] 1: Water outlet centering adjustment mechanism; 101: Base; 102: First mounting plate; 103: First mounting bracket; 104: First plug; 105: Rear floating seat; 106: Self-aligning bearing; 107: Floating swing shaft; 108: Front floating seat; 109: Plug connection plate; 110: First bolt; 111: First spring; 112: First threaded hole; 113: First through hole; 114: Second bolt; 115: Second spring; 116: Second threaded hole; 117: Second through hole;

[0037] 2: Water inlet centering adjustment mechanism; 201: Second mounting plate; 202: Guide shaft; 203: Vertical push plate; 204: Linear bearing; 205: Fixed ring; 206: Downward pressure driver; 207: Large floating joint; 208: Second mounting bracket; 209: Second plugging head;

[0038] 3: Product transfer and rotation mechanism; 301: Base plate; 302: Rotation mechanism; 303: Transfer driver; 304: Small floating joint; 305: Slide rail; 306: Mounting block; 307: Buffer; 308: Limit bolt; 309: Adjustment nut;

[0039] 4: Product positioning fixture; 401: Fixture; 402: Fastener;

[0040] 5: Photoelectric detection mechanism; 501: Photoelectric sensor; 502: Photoelectric mounting part; 503: Photoelectric support; 504: Support bracket;

[0041] 6: Circulating water pump. DETAILED DESCRIPTION

[0042] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0043] like Figure 1-Figure 3 As shown, a specific embodiment of the present invention provides an adaptive circulating water pump wet chamber leakage test mechanism, comprising a water outlet centering adjustment mechanism 1, a water inlet centering adjustment mechanism 2, a product transfer and rotation mechanism 3, and a product positioning fixture 4. The water outlet centering adjustment mechanism 1 is mounted to the rear of the product transfer and rotation mechanism 3, the water inlet centering adjustment mechanism 2 is supported in the middle of the product transfer and rotation mechanism 3, and the product positioning fixture 4 is mounted to the product transfer and rotation mechanism 3 and located below the water inlet product translation mechanism.

[0044] Specifically, its outlet centering adjustment mechanism 1 can adaptively adjust the axial eccentric displacement and yaw angle for different types of circulating water pumps 6 to completely block the outlet of the circulating water pump 6. The outlet centering adjustment mechanism 1 can adaptively adjust the axial eccentric displacement and yaw angle for different types of circulating water pumps 6 to completely block the water inlet at the top of the circulating water pump 6, thereby eliminating the impact of cumulative errors caused by deviations in the positions of the water inlets and outlets of different circulating water pumps 6 and manufacturing errors of the product shell on the wet chamber leakage test of the circulating water pump 6. The product transfer and rotation mechanism 3 can transfer the circulating water pump 6 from the initial position to the test position and rotate the circulating water pump 6 until its outlet faces the outlet centering adjustment mechanism 1. The product transfer and rotation mechanism 3 can adjust the test position of the circulating water pump 6 accordingly according to different types of circulating water pumps 6 to be compatible with multiple types of circulating water pumps 6. Compared with the existing technology, it can significantly improve the accuracy and stability of test data. At the same time, it can also meet the needs of testing circulating water pumps 6 of different models, and has a wider scope of application.

[0045] Furthermore, if Figure 4-Figure 8 as well as Figure 11 As shown, the water outlet centering adjustment mechanism 1 includes a base 101, a first mounting plate 102, a centering adjustment assembly, a first mounting frame 103 and a first plugging head 104. The base 101 is installed at the rear of the product transfer and rotation mechanism 3. The first mounting plate 102 can be installed on the base 101 so as to move up and down, and the centering adjustment assembly can be floatingly installed in the first mounting frame 103. The first mounting frame 103 is fixed to the first mounting plate 102, and the first end of the centering adjustment assembly is connected to the first plugging head 104. Among them, the first plugging head 104 is an internal expansion plugging head. After the internal expansion plugging head is inserted into the water outlet of the circulating water pump 6, it expands and fills the water outlet of the circulating water pump 6. A sealing rubber ring is provided between the internal expansion plugging head and the water outlet of the circulating water pump 6 to eliminate the deviation in the roughness and parallelism of the water outlet of the circulating water pump 6, thereby improving the accuracy and stability of the test data.

[0046] Specifically, if Figure 4As shown, the centering adjustment assembly includes a rear floating seat 105, a first floating assembly, a self-aligning bearing 106, a floating swing shaft 107, a front floating seat 108, a second floating assembly, and a plug connection plate 109. The rear floating seat 105 is floatably mounted within the first mounting frame 103 via the first floating assembly. The self-aligning bearing 106 is mounted within the rear floating seat 105, which is connected to the front floating seat 108 via the floating swing shaft 107. The plug connection plate 109 is detachably mounted to the front floating seat 108. The front floating seat 108 is floatably mounted within the first mounting frame 103 via the second floating assembly, located in front of the rear floating seat 105. The front end of the plug connection plate 109, serving as the first end of the centering adjustment assembly, is connected to the first plug 104. The self-aligning bearing 106 can make the floating shaft 107, the front floating seat 108, the plug mounting seat and the first plug 104 swing within a certain range around the spherical center of the self-aligning bearing 106, thereby adjusting the axial deflection angle.

[0047] Furthermore, if Figure 4 As shown, the first floating assembly includes a first bolt 110 and a first spring 111 sleeved onto the first bolt 110. The shank of the first bolt 110 consists of a smooth section and a threaded section, with the threaded section extending to the end of the shank. First threaded holes 112 are defined at each of the four ends of the rear floating seat 105, while first through-holes 113 are defined on the four sides of the first mounting frame 103. The first bolt 110 passes through the first through-holes 113, and the threaded portion of the first bolt 110 is screwed into the corresponding first threaded hole 112 in the rear floating seat 105. The first spring 111 is positioned between the first mounting frame 103 and the rear floating seat 105 to enable vertical and lateral floating of the rear floating seat 105. The second floating assembly includes a second bolt 114 and a second spring 115 sleeved onto the second bolt 114. The shank of the second bolt 114 consists of a smooth section and a threaded section, with the threaded section extending to the end of the shank. The four ends of the front floating seat 108 are each provided with a second threaded hole 116, and the four side portions of the first mounting frame 103 are correspondingly provided with a second through hole 117. The second bolt 114 is passed through the second through hole 117, and the threaded portion of the second bolt 114 is screwed into the corresponding second threaded hole 116 on the front floating seat 108. The second spring 115 is located between the first mounting frame 103 and the front floating seat 108 to enable the front floating seat 108 to float vertically (up and down) and laterally (left and right).

[0048] Specifically, in this embodiment, the rear floating seat 105 has two first threaded holes 112 at each of its four ends, and two corresponding first through-holes 113 on each side of the mounting frame. The rear floating seat 105 is floatingly mounted within the mounting frame using eight first bolts 110. The front floating seat 108 has two second threaded holes 116 at each of its four ends, and two corresponding second through-holes 117 on each side of the mounting frame. The front floating seat 108 is floatingly mounted within the mounting frame using eight second bolts 114. Two second springs 115 at the bottom of the front floating seat 108 and two first springs 111 at the top of the rear floating seat 105 jointly absorb the torque generated by the weight of the centering adjustment assembly and the first plugging head 104, with the center of the self-aligning bearing 106 as the reference point. The two second springs 115 at the top of the front floating seat 108 and the two first springs 111 at the bottom of the rear floating seat 105 jointly ensure that the centering adjustment assembly and the first plugging head 104 are level at their initial positions. When the first closure head is inserted into the outlet of the circulating water pump 6, if the outlet of the circulating water pump 6 deviates to the left, the front floating seat 108 deviates to the left, and the front floating seat 108 compresses the two second springs 115 at its left end, thereby causing the first closure head 104 to adaptively deviate to the left. If the outlet of the circulating water pump 6 deviates to the right, the front floating seat 108 deviates to the right, and the front floating seat 108 compresses the two second springs 115 at its right end, thereby causing the first closure head 104 to adaptively deviate to the right. If the outlet of the circulating water pump 6 deviates to the right, the front floating seat 108 deviates upward, and the front floating seat 108 compresses the two second springs 115 at its top end, thereby causing the first closure head 104 to adaptively deviate upward. If the outlet of the circulating water pump 6 deviates downward, the front floating seat 108 deviates downward, and the front floating seat 108 compresses the two second springs 115 at its bottom end, thereby causing the first closure head 104 to adaptively deviate downward.

[0049] Furthermore, if Figures 9-11As shown, the water inlet centering adjustment mechanism 2 includes a second mounting plate 201, two guide shafts 202, a vertical push plate 203, two linear bearings 204, two fixing rings 205, a downward pressure driver 206, a large floating joint 207, a second mounting frame 208, a centering adjustment assembly and a second sealing head 209. The second mounting plate 201 is supported on the product transfer and rotation mechanism 3 via two guide shafts 202. The vertical push plate 203 is slidably mounted on the two guide shafts 202 via two linear bearings 204. Two fixing rings 205 are mounted on the two guide shafts 202 to limit the maximum downward sliding distance of the two linear bearings 204. A downward pressure driver 206 is mounted on the second mounting plate 201 and connected to the vertical push plate 203 via a large floating joint 207 to drive the vertical push plate 203 to slide up and down along the guide shafts 202. A second mounting bracket 208 is mounted on the bottom of the vertical push plate 203. A centering adjustment assembly is floatingly mounted within the second mounting bracket 208. The first end of the centering adjustment assembly is connected to a second plugging head 209. The second plugging head 209 is an external expansion plugging head. During the test, according to the height of the water inlet of the circulating water pump 6, the vertical push plate 203 is driven by the downward pressure driver 206 to slide downward along the guide shaft 202 to the position, and the water inlet of the circulating water pump 6 is connected through the external expansion type sealing head, and then expanded to completely cover the water inlet of the circulating water pump 6. A sealing rubber ring is provided between the external expansion type sealing head and the water inlet of the circulating water pump 6 to eliminate the deviation in the roughness and parallelism of the water inlet of the circulating water pump 6, thereby improving the accuracy and stability of the test data.

[0050] Specifically, the centering adjustment assembly installed in second mounting frame 208 has the same structure and principle as the centering adjustment assembly installed in first mounting frame 103, except that the centering adjustment assembly in first mounting frame 103 faces forward, while the centering adjustment assembly in second mounting frame 208 faces downward. The front floating seat 108 and rear floating seat 105 in second mounting frame 208 are capable of floating in the front, back, left, and right directions.

[0051] Furthermore, if Figure 12 and Figure 14As shown, the product transfer and rotation mechanism 3 comprises a base plate 301, a rotation mechanism 302, a transfer driver 303, a small floating joint 304, and a stopper assembly. The base plate 301 has two slide rails 305 extending in the front-to-back direction. The rotation mechanism 302 is slidably mounted on the slide rails 305. The transfer driver 303 is mounted on the base plate 301 and connected to the rotation mechanism 302 via a small floating joint 304. The stopper assemblies are mounted on the base plate 301 and located at the front and rear ends of the two slide rails 305. The outlet centering adjustment mechanism 1 is mounted at the rear of the base plate 301, the inlet centering adjustment mechanism 2 is mounted in the middle of the base plate 301, and the product positioning fixture 4 is mounted on the rotation mechanism 302. During testing, the transfer driver 303 drives the rotating mechanism 302 backward along the slide rail 305, driving the circulating water pump 6 under test backward from its initial position to the test position. The rotating mechanism 302 rotates the circulating water pump 6 under test until its outlet faces the outlet centering adjustment mechanism 1. Once in position, the rear end of the rotating mechanism 302 abuts the limit assembly located at the rear end of the slide rail 305. The product positioning jig 4 includes a jig 401 and a fastener 402. The jig 401 is fixed to the rotating mechanism 302 by the fastener 402 and is used to fix the circulating water pump 6.

[0052] Specifically, if Figure 12 As shown, the limiting assembly includes four mounting blocks 306, two buffers 307 and two limiting bolts 308. The four mounting blocks 306 are fixed to the base plate 301, and the four mounting blocks 306 are respectively located at the front and rear ends of the two slide rails 305. The two buffers 307 are installed on the two mounting blocks 306 at the front and rear ends of one slide rail 305, and the two limiting bolts 308 are installed on the two mounting blocks 306 at the front and rear ends of the other slide rail 305. An adjustment nut 309 is provided on the buffer 307. Four anti-collision parts are provided on the transfer plate, two of which are located at the front end of the transfer plate, and the other two anti-collision parts are located at the rear end of the transfer plate, which are used to abut the buffer 307 and the limiting bolt 308. The buffer 307 and the adjustment nut 309 can be used to adjust the dead point position of the transfer plate to adapt to the large difference in the position of the water outlet of the circulating water pump 6, thereby achieving compatibility with circulating water pumps 6 with various water outlet lengths.

[0053] Furthermore, if Figure 1 and Figure 13As shown, the adaptive circulating water pump wet chamber leakage test mechanism provided by this specific embodiment also includes a photoelectric detection mechanism 5, and the photoelectric detection mechanism 5 includes a photoelectric sensor 501, a photoelectric mounting part 502, a photoelectric pillar 503 and a pillar support 504. The photoelectric sensor 501 is fixed to the top of the photoelectric pillar 503 through the photoelectric mounting part 502, and the photoelectric pillar 503 is supported on the pillar support 504. The pillar support 504 is fixed on the bottom plate 301 and is located on one side of the initial position. The photoelectric sensor 501 is electrically connected to the transfer driver 303. When the circulating water pump 6 to be tested is placed on the transfer plate, the photoelectric sensor 501 detects the circulating water pump 6 to be tested and sends an electrical signal to the transfer driver 303. The transfer driver 303 starts working and drives the rotating mechanism 302 to move.

[0054] The working condition of the adaptive circulating water pump wet chamber leakage test mechanism provided in this specific embodiment is as follows: the circulating water pump 6 to be tested is fixed on the fixture 401, the photoelectric detection mechanism 5 detects the circulating water pump 6 to be tested, and sends an electrical signal to the transfer driver 303, the transfer driver 303 starts to work, and drives the rotating mechanism 302 to drive the circulating water pump 6 to be tested to move from the initial position to the test position. During the movement, the circulating water pump 6 to be tested is driven by the rotating mechanism 302 to rotate until its water outlet faces the first plug of the water outlet centering adjustment mechanism 1. When it reaches the test position, the first plug has been extended into the water outlet of the circulating water pump 6 to be tested. According to the water outlet condition of the circulating water pump 6 to be tested, the first plug is adaptively adjusted through the centering adjustment component to completely block the water outlet of the circulating water pump 6 to be tested. The downward actuator 206 of the water inlet centering adjustment mechanism 2 drives the vertical push plate 203 to slide downward along the guide shaft 202, driving the second plugging head 209 to move downward until it fits over the water inlet of the circulating water pump 6 under test. Based on the condition of the water inlet of the circulating water pump 6 under test, the second plugging head 209 is adaptively adjusted through the centering adjustment component to completely block the water inlet of the circulating water pump 6 under test. Then, a circulating water pump wet chamber leakage test is performed.

[0055] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0056] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0058] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0059] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An adaptive circulating water pump wet chamber leakage test mechanism, characterized in that: It includes the water outlet centering adjustment mechanism, the water inlet centering adjustment mechanism, the product transfer and rotation mechanism and the product positioning fixture; The water outlet centering adjustment mechanism is installed at the rear of the product transfer and rotation mechanism, the water inlet centering adjustment mechanism is supported at the middle of the product transfer and rotation mechanism, and the product positioning fixture is installed at the product transfer and rotation mechanism and is located below the water inlet product translation mechanism; The water outlet centering adjustment mechanism includes a base, a first mounting plate, a centering adjustment component, a first mounting frame and a first plugging head; The base is mounted on the rear part of the product transfer and rotation mechanism, the first mounting plate is mounted on the base so as to be movable up and down, the centering adjustment assembly is mounted in a floating manner in the first mounting bracket, the first mounting bracket is fixed to the first mounting plate, and the first end of the centering adjustment assembly is connected to the first plugging head; The centering adjustment assembly includes a rear floating seat, a first floating assembly, a self-aligning bearing, a floating swing shaft, a front floating seat, a second floating assembly and a plug connection plate; The rear floating seat is floatably mounted in the first mounting frame via the first floating assembly, the self-aligning bearing is mounted in the rear floating seat, and the self-aligning bearing is connected to the front floating seat via a floating swing shaft, the plug connection plate is detachably mounted on the front floating seat, and the front floating seat is floatably mounted in the first mounting frame via the second floating assembly, and the front end of the plug connection plate serves as the first end of the centering adjustment assembly and is connected to the first plugging head; The water inlet centering adjustment mechanism includes a second mounting plate, two guide shafts, a vertical push plate, two linear bearings, a downward pressure driver, a large floating joint, a second mounting frame, the centering adjustment assembly and a second plugging head; The second mounting plate is supported on the product transfer and rotation mechanism through the two guide shafts, the vertical push plate is slidably sleeved on the two guide shafts through the two linear bearings, the downward pressure driver is mounted on the second mounting plate, and the downward pressure driver is connected to the vertical push plate through the large floating joint to drive the vertical push plate to slide up and down along the guide shafts, the second mounting bracket is mounted on the bottom of the vertical push plate, the centering adjustment assembly can be floatingly mounted in the second mounting bracket, and the first end of the centering adjustment assembly is connected to the second blocking head; The product transfer and rotation mechanism includes a base plate, a rotation mechanism, a transfer drive, a small floating joint and a limit assembly; The base plate has two slide rails extending in the front-to-back direction, the rotating mechanism is slidably mounted on the slide rails, the transfer driver is mounted on the base plate, and the transfer driver is connected to the rotating mechanism via the small floating joint, and the limit assembly is mounted on the base plate and located at the front and rear ends of the two slide rails; The water outlet centering adjustment mechanism is installed at the rear of the base plate, the water inlet centering adjustment mechanism is installed at the middle of the base plate, and the product positioning fixture is installed on the rotating mechanism.

2. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: The first floating assembly includes a first bolt and a first spring sleeved on the first bolt; The screw rod of the first bolt consists of a smooth section and a threaded section, and the threaded section with threads extends to the end of the screw rod; The four ends of the rear floating seat are each provided with a first threaded hole, and the four side portions of the first mounting frame are correspondingly provided with a first through hole. The first bolt is passed through the first through hole, and the threaded portion of the first bolt is screwed into the corresponding first threaded hole on the rear floating seat. The first spring is located between the first mounting frame and the rear floating seat to achieve vertical and lateral floating of the rear floating seat.

3. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: The second floating assembly includes a second bolt and a second spring sleeved on the second bolt; The screw rod of the second bolt consists of a smooth section and a threaded section, and the threaded section with threads extends to the end of the screw rod; The four ends of the front floating seat are each provided with a second threaded hole, and the four side portions of the first mounting frame are correspondingly provided with a second through hole. The second bolt is passed through the second through hole, and the threaded portion of the second bolt is screwed into the corresponding second threaded hole on the front floating seat. The second spring is located between the first mounting frame and the front floating seat to achieve vertical and lateral floating of the front floating seat.

4. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: The water inlet centering adjustment mechanism also includes two fixing rings; The two fixing rings are respectively installed on the two guide shafts to limit the maximum distance that the two linear bearings can slide downward.

5. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: The first plugging head is an internal expansion plugging head, and the second plugging head is an external expansion plugging head.

6. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: It also includes a photoelectric detection mechanism; The photoelectric detection mechanism includes a photoelectric sensor, a photoelectric mounting part, a photoelectric support and a support base; The photoelectric sensor is fixed to the top of the photoelectric pillar through the photoelectric mounting component. The photoelectric pillar is supported on the pillar support. The pillar support is fixed on the bottom plate. The photoelectric sensor is electrically connected to the transfer driver.

7. The adaptive circulating water pump wet chamber leakage testing mechanism according to claim 1, characterized in that: The product positioning jig includes a jig and a fastener; The jig is fixed to the rotating mechanism through the fastener.

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