Hydraulic testing device
By designing a hydraulic testing device and utilizing the cooperation of a fixed component, a fluid supply module, and a drive module, the problem of inconsistent sealing performance of rotary joints was solved, achieving efficient testing of sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG NAVIGATION TIMES TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-05-29
AI Technical Summary
In the prior art, there is a difference in the sealing performance between the rotor and the joint body of the rotary joint, which makes it difficult to effectively test the sealing performance, especially the problem of fluid leakage at high speeds.
A hydraulic testing device was designed, including a frame, a testing module, a liquid supply module, and a drive module. The connector body and rotor of the rotary joint are fixed by a fixing component and a rotating component, respectively. The liquid supply module is connected to an external liquid source and drives the rotor to rotate at high speed relative to the connector body through the drive module to test the sealing performance.
It enables efficient testing of the sealing performance of multiple rotary joints, improves testing efficiency, and can accurately determine whether the sealing performance of the rotary joint is good.
Smart Images
Figure CN224303216U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sealing test technology, and more particularly to a hydraulic test device. Background Technology
[0002] A rotary joint is a mechanical structure that can continuously transfer fluids (such as liquids or gases) while rotating continuously at 360°. A rotary joint consists of a joint body and a rotor. The joint body is equivalent to the stator of the rotary joint, and the rotor is rotatably connected to the joint body. The seal between the rotor and the joint body is usually achieved by the planar contact of two ceramic plates.
[0003] Due to assembly or processing errors, the sealing performance between the rotor and the joint body of different rotary joints varies. Therefore, the sealing performance of rotary joints needs to be tested before leaving the factory to ensure that the sealing performance of the rotary joints meets the requirements. Utility Model Content
[0004] This application provides a hydraulic testing device that can effectively test the sealing performance of rotary joints.
[0005] This application provides a hydraulic testing device for testing the sealing performance of a rotary joint. The rotary joint includes a joint body and a rotor connected to the joint body. The hydraulic testing device includes a frame, multiple testing modules, a liquid supply module, and a drive module. Each testing module includes a fixed component and a rotating component mounted on the frame. The fixed component is connected to the joint body, and the rotating shaft of the rotating component is connected to the rotor. The liquid supply module is mounted on the frame, with its inlet end for introducing external liquid and its outlet end connected to the joint body. The drive module is mounted on the frame and is drively connected to the rotating shaft of the rotating component of each testing module. The drive module is configured to drive the rotating shafts of the rotating components of all testing modules to rotate, thereby causing the rotor to rotate relative to the joint body.
[0006] The hydraulic testing device based on the embodiments of this application designs a test module. The fixing component of the test module is used to fix the connector body of the rotary joint, and the rotating shaft of the rotating component of the test module is used to fix the rotor of the rotary joint. A liquid supply module is designed, with its outlet end connected to the connector body of the rotary joint, allowing external liquid to flow into the connector body and rotor of the rotary joint via the liquid supply module. A drive module is designed to provide driving force to drive the rotating shaft of the rotating component of the test module to rotate, thereby causing the rotor of the rotary joint to rotate at high speed relative to the connector body. Thus, the machine operator can determine the sealing performance of the rotary joint by whether liquid leaks from the assembly gap between the connector body and the rotor of the rotary joint. Each test module can be used to test the sealing performance of one rotary joint. This application designs multiple test modules to test the sealing performance of multiple rotary joints, resulting in high testing efficiency. Attached Figure Description
[0007] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0008] Figure 1 This is a schematic diagram of the hydraulic testing device in one embodiment of this application from a first-view perspective.
[0009] Figure 2 This is a schematic diagram of the hydraulic testing device in one embodiment of this application from a second perspective.
[0010] Figure 3 This is a schematic diagram of the structure of the test module and the drive module in one embodiment of this application;
[0011] Figure 4 for Figure 3 A structural diagram from another perspective;
[0012] Figure 5 This is a cross-sectional structural diagram of a test module in one embodiment of this application;
[0013] Figure 6 This is a partially exploded structural diagram of a test module in one embodiment of this application.
[0014] Reference numerals: 1. Hydraulic testing device; 10. Frame; 10a. Leakage area; 10b. Second fixing hole; 10c. Mounting hole; 20. Test module; 21. Fixing component; 211. Fixing base; 211a. Second through hole; 211b. Third fixing hole; 212. Second locking element; 213. Third locking element; 22. Rotating component; 221. Rotating shaft; 222. Base; 223. Bearing; 30. Liquid supply module ; 31. Diverter block; 32. Inlet pipe; 33. Outlet pipe; 34. Connector; 35. Valve; 40. Drive module; 41. Drive wheel; 42. Transmission wheel; 43. Transmission element; 44. Tensioning assembly; 441. Bracket; 441a. Long strip-shaped adjustment through hole; 442. First locking element; 443. Tensioning wheel; 50. Collection tank; 60. Rotary joint; 61. Joint body; 61a. First through hole; 62. Rotor. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0016] Please refer to Figures 1-2 As shown, this application proposes a hydraulic testing device 1 for testing the sealing performance of rotary joints 60. It can effectively test the sealing performance of multiple rotary joints 60 simultaneously, with high testing efficiency.
[0017] The hydraulic testing device 1 includes a frame 10, multiple testing modules 20, a fluid supply module 30, and a drive module 40. Each testing module 20 includes a fixing component 21 and a rotating component 22 mounted on the frame 10. The fixing component 21 is used to connect to the connector body 61 of the rotary joint 60, and the rotating shaft 221 of the rotating component 22 is used to connect to the rotor 62 of the rotary joint 60. The fluid supply module 30 is mounted on the frame 10. The inlet end of the fluid supply module 30 is used to introduce external liquid, and the outlet end of the fluid supply module 30 is connected to the connector body 61 of the rotary joint 60. The drive module 40 is mounted on the frame 10 and is drively connected to the rotating shaft 221 of the rotating component 22 of each testing module 20. The drive module 40 is configured to drive the rotating shaft 221 of the rotating component 22 of all testing modules 20 to rotate, thereby causing the rotor 62 of the rotary joint 60 to rotate relative to the connector body 61 of the rotary joint 60.
[0018] The following combination Figures 1-6 The specific structure of the hydraulic testing device 1 will be described in detail.
[0019] A rotary joint 60 is a mechanical structure capable of continuously transmitting fluids (such as liquids or gases) while rotating continuously in 360°. The rotary joint 60 includes a joint body 61 and a rotor 62. The joint body 61 is equivalent to the stator of the rotary joint 60. The rotor 62 is rotatably connected to the joint body 61. The rotor 62 and the joint body 61 are usually sealed by the planar contact of two ceramic plates.
[0020] It is understandable that, for example, the presence of assembly or processing errors may cause the fluid flowing through the joint body 61 and the rotor 62 to leak from the assembly gap between the rotor 62 and the joint body 61 during the high-speed rotation of the rotor 62 relative to the joint body 61. Therefore, it is necessary to test the sealing performance of the rotary joint 60.
[0021] The hydraulic testing device 1 in this application is used to test the sealing performance of the rotary joint 60, such as... Figures 1-3 As shown, the hydraulic testing device 1 includes a frame 10, a testing module 20, a fluid supply module 30, and a drive module 40.
[0022] The frame 10 serves as the main operating platform for the hydraulic testing device 1. The specific material of the frame 10 is not limited here; designers can make a reasonable selection based on actual needs. For example, the material of the frame 10 can include, but is not limited to, stainless steel or aluminum alloy.
[0023] The test module 20 serves as a fixture for fixing the rotary joint 60 in the hydraulic test device 1. On the other hand, the test module 20 serves as a test mechanism for the hydraulic test device 1, which works in conjunction with the liquid supply module 30 and the drive module 40 to effectively test the sealing performance of the rotary joint 60.
[0024] The number of test modules 20 is multiple (more than two). Each test module 20 is used to fix and test the sealing performance of a rotary joint 60. By designing multiple test modules 20, the hydraulic test device 1 can test the sealing performance of multiple rotary joints 60 at the same time.
[0025] Each test module 20 includes a fixed component 21 and a rotating component 22.
[0026] The fixing component 21 serves as one of the fixing mechanisms of the test module 20 and is used to connect with the connector body 61 of the rotary joint 60 to fix the connector body 61 of the rotary joint 60. The specific structure of the fixing component 21 will be described in detail below.
[0027] The fixing component 21 is mounted on the rack 10. The specific installation method between the fixing component 21 and the rack 10 is not limited here, and the designer can make reasonable designs according to actual needs; for example, the fixing component 21 (specifically the fixing seat 211 described below) can be detachably fixedly connected to the rack 10 by at least one of the following methods: screw connection, snap connection or plug connection; or, for example, the fixing component 21 (specifically the fixing seat 211 described below) can also be non-detachably fixedly connected to the rack 10 by riveting or welding.
[0028] The rotating assembly 22 serves as another fixing mechanism for the test module 20. The rotating assembly 22 includes a rotating shaft 221, which is used to connect to the rotor 62 of the rotary joint 60 to fix the rotor 62 of the rotary joint 60. The specific structure of the rotating assembly 22 will be described in detail below.
[0029] The rotating assembly 22 is mounted on the frame 10. The specific mounting method between the rotating assembly 22 and the frame 10 is not limited here; designers can design it reasonably according to actual needs. For example, the rotating assembly 22 (specifically, the base 222 described below) can be detachably and fixedly connected to the frame 10 by at least one of the following methods: screwing, snap-fitting, or plugging. Alternatively, the rotating assembly 22 (specifically, the base 222 described below) can also be non-detachably and fixedly connected to the frame 10 by riveting or welding, but not limited to this method.
[0030] The liquid supply module 30 serves as the liquid delivery mechanism of the hydraulic testing device 1 to deliver external liquid (such as tap water) for testing, in order to cooperate with the testing module 20 and the drive module 40 to effectively test the sealing performance of the rotary joint 60. The specific structure of the liquid supply module 30 will be described in detail below.
[0031] The liquid supply module 30 is mounted on the frame 10. The specific installation method between the liquid supply module 30 and the frame 10 is not limited here, and the designer can make reasonable designs according to actual needs; for example, the liquid supply module 30 can be detachably connected to the frame 10 by at least one of the following methods: screw connection, snap connection or plug connection; or, for example, the liquid supply module 30 can be non-detachably connected to the frame 10 by riveting or welding.
[0032] The inlet end of the liquid supply module 30 is used to introduce external liquid, and the outlet end of the liquid supply module 30 is connected to the connector body 61 of the rotary joint 60. Thus, external liquid flows into the liquid supply module 30 from the inlet end, passes through the liquid supply module 30, and flows out from the outlet end of the liquid supply module 30, and is transported to the connector body 61 of the rotary joint 60, which is connected to the outlet end of the liquid supply module 30. The "inlet end" of the liquid supply module 30 is the part of the liquid supply module 30 used to allow external liquid to flow into the liquid supply module 30; the "outlet end" of the liquid supply module 30 is the part of the liquid supply module 30 used to allow external liquid to flow out of the liquid supply module 30.
[0033] The drive module 40 serves as the drive mechanism of the hydraulic testing device 1 to generate driving force to rotate the rotating shaft 221 of the rotating components 22 of all testing modules 20. The specific structure of the drive module 40 will be described in detail below.
[0034] The drive module 40 is mounted on the frame 10. The specific mounting method between the drive module 40 and the frame 10 is not limited here; designers can design it reasonably according to actual needs. For example, the drive module 40 (specifically, the drive motor described below) can be detachably and fixedly connected to the frame 10 by at least one of the following methods: screwing, snap-fitting, or plugging. Alternatively, the drive module 40 (specifically, the drive motor described below) can also be non-detachably and fixedly connected to the frame 10 by riveting or welding, but not limited to this method.
[0035] The drive module 40 is connected to the rotation shaft 221 of the rotation component 22 of each test module 20. The drive module 40 is configured to drive the rotation shaft 221 of the rotation component 22 of all test modules 20 to rotate, thereby causing the rotor 62 of the rotary joint 60 to rotate relative to the joint body 61 of the rotary joint 60. The drive module 40 is adapted to generate driving force and transmit the driving force to the rotation shaft 221 of the rotation component 22 of each test module 20 connected to it, so that the rotation shaft 221 of the rotation component 22 of each test module 20 rotates, thereby causing the rotor 62 of the rotary joint 60 connected to the rotation shaft 221 of the rotation component 22 of each test module 20 to rotate, thereby causing the rotor 62 of the rotary joint 60 to rotate relative to the joint body 61 of the rotary joint 60. Understandably, the rotating shaft 221 of the rotating component 22 of each test module 20 can rotate at high speed under the action of the drive module 40, thereby causing the rotor 62 of the rotary joint 60 to rotate at high speed relative to the joint body 61 of the rotary joint 60, so as to effectively test the sealing performance of the rotary joint 60. It should be noted that during the test, the end of the rotor 62 of the rotary joint 60 away from the joint body 61 is blocked.
[0036] Based on the hydraulic testing device 1 in this application embodiment, a testing module 20 is designed. The fixing component 21 of the testing module 20 is used to fix the connector body 61 of the rotary joint 60, and the rotating shaft 221 of the rotating component 22 of the testing module 20 is used to fix the rotor 62 of the rotary joint 60. A liquid supply module 30 is designed, with its outlet end connected to the connector body 61 of the rotary joint 60, so that external liquid flows into the connector body 61 and the rotor 62 of the rotary joint 60 via the liquid supply module 30. A drive module 40 is designed, which provides driving force to drive the rotating shaft 221 of the rotating component 22 of the testing module 20 to rotate, thereby causing the rotor 62 of the rotary joint 60 to rotate at high speed relative to the connector body 61 of the rotary joint 60. In this way, the machine operator can judge whether the sealing performance of the rotary joint 60 is good by whether the liquid leaks from the assembly gap between the connector body 61 and the rotor 62 of the rotary joint 60. Each test module 20 can be used to test the sealing performance of one rotary joint 60. This application designs multiple test modules 20 to test the sealing performance of multiple rotary joints 60, which is highly efficient.
[0037] like Figures 3-5 As shown, the rotating assembly 22 of each test module 20 also includes a base 222 and a bearing 223. The base 222 is mounted on the frame 10, the rotating shaft 221 passes through the base 222, and at least a portion of the bearing 223 is disposed within the base 222. The outer ring of the bearing 223 is fixedly connected to the base 222, and the inner ring of the bearing 223 is fixedly connected to the rotating shaft 221. The rotating shaft 221 is rotatably connected to the base 222 via the bearing 223. The driving force generated by the drive module 40 is transmitted to the rotating shaft 221 of the rotating assembly 22 of each test module 20, causing the rotating shaft 221 of the rotating assembly 22 of each test module 20 to rotate relative to the base 222 via the bearing 223. This drives the rotor 62 of the rotary joint 60 connected to the rotating shaft 221 of the rotating assembly 22 of each test module 20 to rotate, thereby causing the rotor 62 of the rotary joint 60 to rotate relative to the joint body 61 of the rotary joint 60, so as to effectively test the sealing performance of the rotating body.
[0038] Specifically, the specific connection method between the rotating shaft 221 and the rotor 62 of the rotary joint 60, and the specific connection method between the base 222 and the frame 10, may include, but are not limited to, one or more of the following embodiments.
[0039] In the first embodiment, the rotating shaft 221 is threadedly connected to the rotor 62 of the rotary joint 60. The end of the rotating shaft 221 connected to the rotor 62 of the rotary joint 60 has an internal thread, while the rotor 62 of the rotary joint 60 has an external thread that mates with the internal thread. The threaded connection between the rotating shaft 221 of the rotating assembly 22 of each test module 20 and the rotor 62 of the rotary joint 60 achieves both a structurally fixed connection and a performance-based sealed connection.
[0040] In the second embodiment, the base 222 is connected to the frame 10 by locking screws. The base 222 has multiple through holes, and the frame 10 has corresponding threaded holes. The screw passes through the through holes and is threaded into the threaded holes to fix the base 222 to the frame 10, thereby realizing a detachable connection between the test module 20 and the frame 10, so as to facilitate the repair or replacement of the damaged test module 20 in the future.
[0041] like Figures 3-4 As shown, the drive module 40 includes a drive motor (not shown), a drive wheel 41, multiple transmission wheels 42, and a transmission element 43. The drive motor is mounted on the frame 10; the drive wheel 41 is fixedly connected to the motor shaft of the drive motor; the rotation shaft 221 of the rotation assembly 22 of each test module 20 is fixedly connected to at least one transmission wheel 42; the transmission element 43 is drively connected to the drive wheel 41 and all the transmission wheels 42. The drive motor is configured to drive the drive wheel 41 to rotate, so that all the transmission wheels 42 rotate synchronously under the action of the transmission element 43, thereby causing the rotation shaft 221 of the rotation assembly 22 of all test modules 20 to rotate synchronously.
[0042] The drive motor can be, but is not limited to, detachably fixed to the frame 10 by means of screws.
[0043] The drive wheel 41 serves as the driving wheel and is fixedly connected to the motor shaft of the drive motor. The rotation of the motor shaft of the drive motor drives the drive wheel 41, which is fixedly connected to it, to rotate.
[0044] The drive wheel 42, as a driven wheel, is used to rotate together with the drive wheel 41 under the action of the transmission element 43. The drive wheel 41 rotates and transmits the driving force to all the drive wheels 42 through the transmission element 43.
[0045] The specific forms of the drive wheel 41, transmission wheel 42, and transmission element 43 are not limited here, and designers can make reasonable designs according to actual needs. For example, the drive wheel 41 can be a drive gear, in which case the transmission wheel 42 is a transmission gear, and the transmission element 43 is a chain. The drive gear and all transmission gears can be connected by a single chain, or the drive gear and all transmission gears can be connected by multiple chains. As another example, the drive wheel 41 can also be a drive pulley, in which case the transmission wheel 42 is a transmission pulley, and the transmission element 43 is a conveyor belt. The drive pulley and all transmission pulleys can be connected by a single transmission belt, or the drive pulley and all transmission pulleys can be connected by multiple conveyor belts.
[0046] By designing a drive motor, drive wheel 41, multiple transmission wheels 42, and transmission element 43, the rotation of the motor shaft of the drive motor drives the drive wheel 41, which is fixedly connected to it, to rotate. The rotation of the drive wheel 41 drives the multiple transmission wheels 42 to rotate together with the drive wheel 41 through the transmission element 43, so that the rotation shaft 221 of the rotation components 22 of all test modules 20 rotates synchronously. This allows for simultaneous testing of the sealing performance of multiple rotary joints 60, improving testing efficiency while reducing the number of drive motors, thus reducing the cost of the hydraulic testing device 1.
[0047] In this embodiment, there are three test modules 20, including a first test module 20, a second test module 20, and a third test module 20. The second test module 20 is located between the first and third test modules 20, and the first test module 20 is closest to the drive motor. The drive wheel 41 is a drive pulley, which is fixedly connected to the motor shaft of the drive motor. The transmission wheel 42 is a transmission pulley, and there are six transmission pulleys. The six transmission pulleys are paired up and fixedly connected to the rotation shaft 221 of the rotation assembly 22 of the first / second / third test module 20, respectively. The transmission element 43 is a conveyor belt, and there are three conveyor belts. The first conveyor belt is connected to the drive pulley and one of the two transmission pulleys mounted on the rotating shaft 221 of the rotating component 22 of the first test module 20. The second conveyor belt is connected to the other of the two transmission pulleys mounted on the rotating shaft 221 of the rotating component 22 of the first test module 20 and one of the two transmission pulleys mounted on the rotating shaft 221 of the rotating component 22 of the second test module 20. The third conveyor belt is connected to the other of the two transmission pulleys mounted on the rotating shaft 221 of the rotating component 22 of the second test module 20 and one of the two transmission pulleys mounted on the rotating shaft 221 of the rotating component 22 of the third test module 20.
[0048] like Figure 4As shown, the drive module 40 also includes a tensioning assembly 44, which is mounted on the frame 10 and is used to tension the transmission element 43. The number of tensioning assemblies 44 can be one or more; this is not limited, and designers can design them according to actual needs. By designing the tensioning assembly 44, which is used to tension the transmission element 43, the transmission element 43 is always kept taut with the drive wheel 41 and all transmission wheels 42. This allows the driving force generated by the drive motor to smoothly pass through the drive wheel 41, transmission element 43, and transmission wheels 42, driving the rotating shaft 221 of the rotating assembly 22 of all test modules 20 to rotate, thus ensuring effective testing of the sealing performance of all rotary joints 60.
[0049] Specifically, the frame 10 has a first fixing hole; the tensioning assembly 44 includes a bracket 441, a first locking member 442 and a tensioning wheel 443; the bracket 441 has an elongated adjusting through hole 441a corresponding to the first fixing hole, the first locking member 442 passes through the elongated adjusting through hole 441a and is connected to the first fixing hole to fix the bracket 441 to the frame 10; the tensioning wheel 443 is rotatably connected to the bracket 441 and abuts against the transmission element 43.
[0050] The specific connection method between the first locking member 442 and the first fixing hole is not limited here, and the designer can make a reasonable design according to the actual needs. For example, when the first locking member 442 is threadedly connected to the first fixing hole, the first locking member 442 is the first screw and the first fixing hole is the first threaded hole. At this time, the first screw passes through the elongated adjustment through hole 441a and is threadedly connected to the first threaded hole to fix the bracket 441 to the frame 10. As another example, when the first locking member 442 is engaged with the first fixing hole, the first locking member 442 is the first locking pin and the first fixing hole is the first locking hole. At this time, the first locking pin passes through the elongated adjustment through hole 441a and is engaged with the first locking hole to fix the bracket 441 to the frame 10.
[0051] By designing an elongated adjustment through hole 441a on the bracket 441, the machine tester can adjust the relative position between the first locking member 442 and the elongated adjustment through hole 441a of the bracket 441 according to the actual tightness of the transmission element 43, so that the tensioning wheel 443 abuts against the transmission element 43 to different degrees, thereby improving the practicality and applicability of the tensioning assembly 44.
[0052] like Figures 1-2As shown, the bearing surface of the frame 10 is provided with a leakage area 10a. The hydraulic testing device 1 also includes a liquid collection tank 50, which is disposed on the frame 10, with the opening of the liquid collection tank 50 facing the leakage area 10a. The "leakage area 10a" is a region on the bearing surface of the frame 10 that allows liquid leaking from the assembly gap between the rotor 62 and the connector body 61 of the rotary joint 60 to flow smoothly into the liquid collection tank 50. The leakage area 10a can be a leakage hole penetrating the bearing surface of the frame 10, or it can be a leakage guide channel on the bearing surface of the frame 10, with the outlet end of the leakage guide channel corresponding to the opening of the liquid collection tank 50. The collection tank 50 may not be connected to the frame 10. In this case, the collection tank 50 is placed directly on the frame 10 and directly below the leakage area 10a, so that the liquid leaking from the assembly gap between the rotor 62 and the connector body 61 of the rotary joint 60 can flow smoothly into the collection tank 50, making it easy for the machine operator to remove the collection tank 50 later to empty the liquid. Alternatively, the collection tank 50 may be connected to the frame 10. The liquid collection tank 50 can be detachably and fixedly connected to the frame 10 by means of screwing, snap-fitting, or plugging. The machine operator can remove the liquid collection tank 50 to empty the liquid in the liquid collection tank 50. The liquid collection tank 50 can also be non-detachably connected to the frame 10 by means of riveting or welding. In this case, the liquid collection tank 50 is connected to a drain valve, and the drain valve is connected to a drain pipe. The machine operator can drain the liquid in the liquid collection tank 50 by opening the drain valve.
[0053] like Figure 3 , Figure 4 and Figure 6 As shown, the frame 10 also has a second fixing hole 10b, and the connector body 61 of the rotary joint 60 has a first through hole 61a. The fixing assembly 21 of each test module 20 includes a fixing base 211, a second locking member 212, and a third locking member 213. The fixing base 211 has a second through hole 211a corresponding to the second fixing hole 10b, and a third fixing hole 211b corresponding to the first through hole 61a. The second locking member 212 passes through the first through hole 61a and connects to the third fixing hole 211b to fix the connector body 61 of the rotary joint 60 to the fixing base 211. The third locking member 213 passes through the second through hole 211a and connects to the second fixing hole 10b to fix the fixing base 211 to the frame 10.
[0054] The specific connection method between the second locking member 212 and the third fixing hole 211b is not limited here, and the designer can make a reasonable design according to the actual needs. For example, when the second locking member 212 and the third fixing hole 211b are threadedly connected, the second locking member 212 is the second screw and the third fixing hole 211b is the third threaded hole. At this time, the second screw passes through the first through hole 61a and is threadedly connected to the third threaded hole to fix the connector body 61 of the rotary joint 60 to the fixing seat 211. As another example, when the second locking member 212 and the third fixing hole 211b are engaged, the second locking member 212 is the second locking pin and the third fixing hole 211b is the third locking hole. At this time, the second locking pin passes through the first through hole 61a and is engaged with the third locking hole to fix the connector body 61 of the rotary joint 60 to the fixing seat 211.
[0055] The specific connection method between the third locking member 213 and the second fixing hole 10b is not limited here. Designers can make reasonable designs according to actual needs. For example, when the third locking member 213 is threadedly connected to the second fixing hole 10b, the third locking member 213 is the third screw and the second fixing hole 10b is the second threaded hole. In this case, the third screw passes through the second through hole 211a and is threadedly connected to the second threaded hole to fix the fixing seat 211 to the frame 10. Another example is when the third locking member 213 is engaged with the second fixing hole 10b, the third locking member 213 is the third locking pin and the second fixing hole 10b is the second locking hole. In this case, the third locking pin passes through the second through hole 211a and is engaged with the second locking hole to fix the fixing seat 211 to the frame 10.
[0056] By designing a second locking member 212, which passes through the first through hole 61a and connects to the third fixing hole 211b, the connector body 61 of the rotary joint 60 is fixed to the fixing seat 211, thereby achieving relative fixation between the connector body 61 of the rotary joint 60 and the fixing seat 211, facilitating the installation and disassembly of the connector body 61 of the rotary joint 60 and the fixing seat 211; by designing a third locking member 213, which passes through the second through hole 211a and connects to the second fixing hole 10b, the fixing seat 211 is fixed to the frame 10, thereby achieving relative fixation between the fixing seat 211 and the frame 10, facilitating the installation and disassembly of the fixing seat 211 and the frame 10.
[0057] like Figures 1-2As shown, the liquid supply module 30 includes a flow divider 31, an inlet pipe 32, and multiple outlet pipes 33. The flow divider 31 is mounted on the frame 10. The inlet of the inlet pipe 32 serves as the inlet end of the liquid supply module 30 for introducing external liquid, and the outlet of the inlet pipe 32 is connected to the inlet of the flow divider 31. The inlets of all outlet pipes 33 are connected to the outlets of the flow divider 31, and the outlets of all outlet pipes 33 are connected to the connector bodies 61 of all rotary joints 60 in a one-to-one correspondence. Under the suction force of the pump (not shown in the figure) of the liquid supply module 30, the external liquid flows from the inlet of the inlet pipe 32 into the inlet pipe 32, then flows from the outlet of the inlet pipe 32 into the diverter block 31, flows out from the outlet of the diverter block 31 and flows from the inlet of the outlet pipe 33 into the outlet pipe 33, and then flows out from the outlet of the outlet pipe 33 and into the connector body 61 of the rotary joint 60. Thus, during the high-speed rotation of the rotor 62 of the rotary joint 60 relative to the connector body 61 of the rotary joint 60, the sealing performance of the rotary joint 60 can be determined by testing whether the liquid leaks from the assembly gap between the connector body 61 and the rotor 62 of the rotary joint 60.
[0058] Specifically, other structural designs for the liquid supply module 30 may include, but are not limited to, one or more of the following embodiments.
[0059] In the first embodiment, the liquid supply module 30 further includes multiple connectors 34, each connector 34 serving as the liquid outlet of the liquid supply module 30, connecting the outlet of a liquid outlet pipe 33 to the connector body 61 of the corresponding rotary joint 60. Specifically, for each connector 34, one end is threadedly connected to the corresponding liquid outlet pipe 33, and the other end is threadedly connected to the connector body 61 of the corresponding rotary joint 60. By designing the connectors 34, the assembly and disassembly of the liquid outlet pipe 33 and the connector body 61 of the corresponding rotary joint 60 are facilitated.
[0060] In the second embodiment, the liquid supply module 30 further includes multiple valves 35, each valve 35 being located on an outlet pipe 33. The valves 35 control the opening and closing of the outlet pipe 33. The valves 35 can be manual valves; when testing the rotary joint 60 is required, the operator manually starts the pump and opens the valves 35. At this time, external liquid flows from the inlet of the inlet pipe 32 into the inlet pipe 32 under the suction force of the pump, flows sequentially through the diverter block 31 and the outlet pipe 33, and finally flows into the joint body 61 of the rotary joint 60. When testing the rotary joint 60 is not required, the operator manually shuts off the pump and closes the valves 35. Valve 35 can also be an automatic valve 35. The hydraulic testing device 1 also includes a remote control. When the rotary joint 60 needs to be tested, the machine operator presses the "test" switch on the remote control, the pump starts, and valve 35 is opened. At this time, the external liquid flows from the inlet of the inlet pipe 32 into the inlet pipe 32 under the suction force of the pump, flows through the diverter block 31 and the outlet pipe 33 in sequence, and finally flows into the joint body 61 of the rotary joint 60. When the rotary joint 60 does not need to be tested, the machine operator presses the "test" switch on the remote control again, the pump stops, and valve 35 is closed.
[0061] In the third embodiment, the pump is fixedly connected to the frame 10 by screws, which facilitates the installation and removal of the pump from the frame 10, so that the machine operator can repair or replace the damaged pump later.
[0062] The following combination Figures 1-6 The working principle of the hydraulic testing device 1 in this application will be described in detail.
[0063] The machine operator first inserts the rotary joint 60 into the mounting hole 10c of the frame 10; then connects the rotor 62 of the rotary joint 60 to the rotating shaft 221 of the rotating component 22 of the corresponding test module 20; then puts the fixing seat 211 on the joint body 61 of the rotary joint 60; then uses the third locking member 213 to lock the joint body 61 of the rotary joint 60 to the fixing seat 211; then uses the second locking member 212 to lock the fixing seat 211 to the frame 10.
[0064] After all the rotary joints 60 are installed according to the above steps, the machine operator can start the drive motor, open multiple valves 35, and start the liquid pump to begin the sealing performance test.
[0065] After the sealing performance test of all rotary joints 60 is completed, the machine operator turns off the liquid pump, closes multiple valves 35, and turns off the drive motor.
[0066] The machine operator first removes the second locking member 212 to release the fixed seat 211 from the frame 10; then removes the third locking member 213 to release the connector body 61 of the rotary joint 60 from the fixed seat 211; then removes the rotor 62 of the rotary joint 60 from the rotating shaft 221 of the rotating assembly 22 of the corresponding test module 20; and finally removes the entire rotary joint 60 from the mounting hole 10c of the frame 10.
[0067] The machine operator categorizes the standard-compliant rotary joints 60 and non-standard rotary joints 60 according to the test results to facilitate subsequent operations.
[0068] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0069] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A hydraulic testing device, characterized in that, For testing the sealing performance of a rotary joint, the rotary joint includes a joint body and a rotor rotatably connected to the joint body; the hydraulic testing device includes: frame; Multiple test modules, each test module including a fixing component and a rotating component mounted on the frame, the fixing component being used to connect to the connector body, and the rotating shaft of the rotating component being used to connect to the rotor; A liquid supply module is installed on the frame. The inlet end of the liquid supply module is used to introduce external liquid, and the outlet end of the liquid supply module is connected to the connector body. A drive module is mounted on the frame and is drively connected to the rotation shaft of the rotation component of each test module. The drive module is configured to drive the rotation shaft of the rotation component of all test modules to rotate, thereby causing the rotor to rotate relative to the connector body.
2. The hydraulic testing device as described in claim 1, characterized in that, The rotating component of each of the test modules includes: The base is mounted on the frame; The rotating shaft passes through the base body; A bearing is at least partially disposed within the housing, the outer ring of the bearing being fixedly connected to the housing, and the inner ring of the bearing being fixedly connected to the rotating shaft.
3. The hydraulic testing device as described in claim 2, characterized in that, The rotating shaft is used for threaded connection with the rotor; and / or The base is connected to the frame by locking screws.
4. The hydraulic testing device as described in claim 2, characterized in that, The drive module includes: A drive motor is mounted on the frame; The drive wheel is fixedly connected to the motor shaft of the drive motor; Multiple drive wheels, and the rotation shaft of the rotation component of each test module is fixedly connected to at least one of the drive wheels; A transmission element is connected to the drive wheel and all of the transmission wheels. The drive motor is configured to drive the drive wheel to rotate, so that all the transmission wheels rotate synchronously under the action of the transmission element, thereby causing the rotation shafts of the rotation components of all the test modules to rotate synchronously.
5. The hydraulic testing device as described in claim 4, characterized in that, The drive module also includes a tensioning assembly, which is mounted on the frame and is used to tension the transmission element.
6. The hydraulic testing device as described in claim 5, characterized in that, The frame has a first fixing hole; the tensioning assembly includes a bracket, a first locking member and a tensioning wheel, the bracket has an elongated adjusting through hole corresponding to the first fixing hole, the first locking member passes through the elongated adjusting through hole and is connected to the first fixing hole to fix the bracket to the frame, and the tensioning wheel is rotatably connected to the bracket and abuts against the transmission element.
7. The hydraulic testing device as described in claim 1, characterized in that, The frame has a leakage area on its bearing surface. The hydraulic testing device also includes a collection tank, which is located on the frame and has its opening facing the leakage area.
8. The hydraulic testing device as described in any one of claims 1-7, characterized in that, The frame also has a second fixing hole, and the connector body has a first through hole; the fixing components of each test module include: The fixing base has a second through hole corresponding to the second fixing hole and a third fixing hole corresponding to the first through hole; The second locking member passes through the first through hole and is connected to the third fixing hole to fix the connector body to the fixing base; The third locking member passes through the second through hole and is connected to the second fixing hole to fix the fixing seat to the frame.
9. The hydraulic testing device as described in claim 8, characterized in that, The liquid supply module includes: The shunt block is mounted on the rack; The liquid inlet pipe has its inlet serving as the liquid inlet end of the liquid supply module for introducing external liquid, and its outlet is connected to the inlet of the diverter block. Multiple liquid outlet pipes are provided, and the inlet of each liquid outlet pipe is connected to the outlet of the diverter block. The outlet of each liquid outlet pipe is used to connect one-to-one with the connector body of each rotary joint.
10. The hydraulic testing device as described in claim 9, characterized in that, The liquid supply module further includes multiple connectors, each connector serving as the liquid outlet of the liquid supply module, connecting the outlet of one of the liquid outlet pipes to the connector body of the corresponding rotary joint; and / or The liquid supply module also includes multiple valves, each of which is located on one of the liquid outlet pipes.