Multi-slider assembly structure for oil film stiffness test

Abstract

The application relates to a multi-sliding-block assembly structure for oil film stiffness testing, and belongs to the technical field of static pressure guide rail performance testing.The multi-sliding-block assembly structure comprises a bearing box, a mounting plate and multiple groups of oil chamber sliding blocks, one side of the bearing box is provided with an oil inlet, the bearing box is provided with a main oil pipe and multiple groups of auxiliary oil pipes, the main oil pipe is arranged on the oil inlet, the inlet ends of the multiple groups of auxiliary oil pipes are communicated with the main oil pipe, the outlet ends of the multiple groups of auxiliary oil pipes are arranged through the bottom of the bearing box, a telescopic rotating mechanism is arranged between the bearing box and the mounting plate, the telescopic rotating mechanism drives the mounting plate to ascend and rotate, the mounting plate is provided with multiple groups of contraction mechanisms, the multiple groups of oil chamber sliding blocks are arranged on the multiple groups of contraction mechanisms, the contraction mechanisms drive the oil chamber sliding blocks to slide along the center direction of the mounting plate, one side of the oil chamber sliding block is provided with a connecting plate, the connecting plate is provided with a distance sensor, and the multiple groups of oil chamber sliding blocks are aligned with the outlets of the auxiliary oil pipes after sliding; and the application has the technical effect of multi-dimensional adjustment of a test position.

Description

Technical Field

[0001] This application relates to the technical field of hydrostatic guide rail performance testing, and in particular to a multi-slider assembly structure for oil film stiffness testing. Background Technology

[0002] The multi-slider assembly structure for oil film stiffness testing is a core component of the multi-slider oil film stiffness pressure test bench. It is primarily used to precisely install, adjust, and supply oil to multiple sets of oil chamber sliders within the test bench, simulating the multi-contact oil film working scenario in industrial equipment. During actual testing, this structure requires real-time monitoring of the oil film thickness between the oil chamber sliders and the test piece using a distance sensor, capturing temperature changes in the oil film area using a temperature sensor, and combining this with feedback from a pressure sensor of the vertical and horizontal pressure applied by the hydraulic cylinder. This provides crucial parameter support for subsequent oil film stiffness calculations and forms the foundation for ensuring the accuracy and reliability of oil film stiffness testing. Existing multi-slider assembly structures for oil film stiffness testing mostly adopt fixed or simple adjustment designs. Some structures can only achieve single-dimensional slider position adjustment, and the oil circuit connection mostly relies on rigid pipelines. During the pressurization process on the test bench, problems such as slider displacement interference and oil circuit sealing failure are prone to occur. Other structures have basic adjustment functions, but the sensor installation position is unreasonable, resulting in lag or deviation in the measurement of parameters such as oil film thickness and temperature.

[0003] Patent (CN 119985062 A) discloses a hydrostatic guide rail performance testing device and a hydrostatic guide rail performance testing method. The hydrostatic guide rail performance testing device includes a base, a pressurizing component, a driving component, an oil supply component, a detection component, and a processor. A guide rail groove is formed on the guide rail. The pressurizing component is mounted on the base and has a first position where it abuts against the hydrostatic slider to apply pressure to the slider, and a second position where it is separated from the hydrostatic slider. The driving component is used to drive the hydrostatic slider to slide within the guide rail groove. The oil supply component is connected to the hydrostatic slider. The processor is electrically connected to the detection component. The processor is used at least to calculate the rigidity of the oil film and use the rigidity of the oil film to determine the load-bearing capacity of the hydrostatic slider, and to determine whether the motion performance of the hydrostatic slider meets the standard by measuring the flow rate of the oil within the hydrostatic slider. The above patent can test the hydrostatic guide rail by assembling the hydrostatic slider, but the assembly of the hydrostatic slider is in a fixed position. Furthermore, the assembly of the hydrostatic slider cannot effectively adjust the detection position and angle of the hydrostatic slider according to different testing platforms.

[0004] Regarding the aforementioned technologies, the inventors believe that they suffer from the drawback of being unable to simultaneously address the multi-dimensional adjustment testing of the test location and the stable supply of oil. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a multi-slider assembly structure for testing oil film stiffness.

[0006] This application provides a multi-slider assembly structure for testing oil film stiffness, which adopts the following technical solution: A multi-slider assembly structure for testing oil film stiffness includes a support box, a mounting plate, and multiple sets of oil cavity sliders. An oil inlet is provided on one side of the support box. A main oil pipe and multiple sets of auxiliary oil pipes are installed inside the support box. The main oil pipe is fixedly connected to the oil inlet. The inlet ends of the multiple sets of auxiliary oil pipes communicate with the main oil pipe, and the outlet ends of the multiple sets of auxiliary oil pipes are disposed through the bottom of the support box. A telescopic rotation mechanism is provided between the support box and the mounting plate. The telescopic rotation mechanism drives the mounting plate to move longitudinally up and down and rotate. Multiple sets of retraction mechanisms are provided on the mounting plate. The multiple sets of oil cavity sliders are respectively mounted on the multiple sets of retraction mechanisms. The retraction mechanisms drive the oil cavity sliders to slide along the center direction of the mounting plate. A connecting plate is provided on one side of each oil cavity slider, and a distance sensor is provided on the connecting plate. After sliding, the multiple sets of oil cavity sliders align with the outlets of the auxiliary oil pipes.

[0007] By adopting the above technical solution, including a carrier box, a mounting plate, and multiple sets of oil cavity sliders, a telescopic rotation mechanism is set between the carrier box and the mounting plate. The telescopic rotation mechanism can drive the mounting plate to rise and fall and rotate longitudinally, and the retraction mechanism can drive the oil cavity sliders to slide along the center direction of the mounting plate. This structure can simulate oil film stiffness tests under various working conditions such as different loads, angles, positions, and oil film thicknesses by adjusting the position of the mounting plate and the spacing of the oil cavity sliders. This allows for a more comprehensive understanding of the performance of the oil film under various actual working conditions and enables multi-dimensional testing. The carrier box is equipped with a main oil pipe and multiple sets of auxiliary oil pipes. The oil inlet is connected to the auxiliary oil pipes through the main oil pipe, and the outlet end of the auxiliary oil pipe passes through the bottom of the carrier box and connects to the oil cavity sliders, so that the high-pressure oil is evenly delivered to each oil cavity slider, ensuring the uniformity and stability of the oil film. A distance sensor is set on the connecting plate on one side of the oil cavity slider, which can accurately measure the change in distance between the oil cavity slider and the object being tested, thereby accurately obtaining the change in oil film thickness.

[0008] Preferably, the telescopic rotation mechanism includes a telescopic rod, a main rotating base, a secondary rotating base, and two sets of locking assemblies. One end of the telescopic rod is rotatably connected to the middle part of the bearing box via the main rotating base. One end of the telescopic rod is detachably connected to one end of the main rotating base, and the other end of the main rotating base is detachably connected to the bearing box. The other end of the telescopic rod is rotatably connected to the middle part of the top of the mounting plate via the secondary rotating base. The other end of the telescopic rod is detachably connected to one end of the secondary rotating base, and the other end of the secondary rotating base is detachably connected to the mounting plate. The two sets of locking assemblies are respectively disposed on the main rotating base and the secondary rotating base. Both ends of the telescopic rod are provided with locking holes that radially penetrate the telescopic rod.

[0009] By adopting the above technical solution, the telescopic rod is rotatably connected to the bearing box and the mounting plate through the main rotating base and the auxiliary rotating base, respectively. After the mounting plate is lowered longitudinally by the telescopic rod, it is rotated through the main rotating base and the auxiliary rotating base. The rotation angle of the mounting plate is locked by the locking assembly, thereby controlling the position and angle of the mounting plate. Both ends of the telescopic rod are rotatably connected to the bearing box and the mounting plate through the main rotating base and the auxiliary rotating base, respectively. After unlocking the corresponding locking assembly, the mounting plate can be driven to rotate around the auxiliary rotating base to adjust the position of the oil chamber slider, or the telescopic rod and the mounting plate as a whole can be driven to rotate around the main rotating base to adjust the overall force direction.

[0010] Preferably, the locking assembly includes a locking rod, a support rod, a locking nut, and a locking screw. One end of the locking rod and the support rod are respectively mounted on the mounting plates or the bearing housing on both sides of the telescopic rod. The other end of the locking rod is provided with a threaded hole, and the other end of the support rod is provided with a guide hole. The locking nut is rotatably connected to one side of the support rod, and the locking screw is threadedly connected to the locking nut.

[0011] By adopting the above technical solution, after the locking screw passes through the locking hole of the telescopic rod, one end of the locking screw is threadedly connected to the threaded hole of the locking rod, and the other end of the locking screw is positioned in the guide hole of the support rod through the locking nut. This can rigidly fix the relative position between the telescopic rod and the main rotating base and the auxiliary rotating base. When the main rotating base is locked by the locking assembly and the auxiliary rotating base is unlocked, the mounting plate can rotate around the telescopic rod. At the same time, the oil cavity slider slides towards the center of the mounting plate through the shrinking mechanism to adapt to the spacing required for detection at different positions. When the auxiliary rotating base is locked by the locking assembly and the main rotating base is unlocked, the shrinking mechanism does not work. Only the main rotating base drives the telescopic rod and the mounting plate to rotate as a whole. This can accurately adjust the contact angle between the oil cavity slider and the test piece, and improve the accuracy of the test data.

[0012] Preferably, the mounting plate is provided with multiple sets of sliding grooves along the center direction of the mounting plate.

[0013] By adopting the above technical solution, a linear sliding track is directly provided for the oil cavity slider connected to the contraction mechanism.

[0014] Preferably, the top of the oil cavity slider is provided with an oil replenishment port, and the lower part of the outer side of the oil replenishment port is provided with threads.

[0015] Preferably, the retraction mechanism includes a movable slider, a lifting sleeve, and a rotating rod. The movable slider is slidably disposed on the slide groove, and a mounting hole is provided in the middle part of the movable slider. A thread is provided at the lower part of the mounting hole. The lifting sleeve is slidably disposed in the upper part of the mounting hole. One end of the rotating rod is rotatably connected to the movable slider, and the other end of the rotating rod is rotatably connected to the telescopic rod.

[0016] By adopting the above technical solution, when the locking mechanism locks the telescopic rod, the telescopic rod no longer rotates. When the mounting plate rotates through the secondary rotating base, the mounting plate, the movable slider, the rotating rod, and the telescopic rod form a swing guide rod mechanism. When the mounting plate rotates, the oil cavity slider mounted on the mounting plate slides along the sliding groove toward the center of the mounting plate, thereby changing the relative positional relationship between the oil cavity slider and the object being measured. This provides a basis for accurately controlling the formation and testing of the oil film. The lifting sleeve is slidably set above the mounting hole of the movable slider. Through the cooperation with the thread at the bottom of the mounting hole, the lifting sleeve rises when the oil cavity slider is installed. When the telescopic rod drives the mounting plate to rise, the lifting sleeve and the outlet of the secondary oil pipe form an oil path to the oil cavity slider.

[0017] Preferably, the mounting plate has multiple sets of fixing components at both ends. The fixing components include a clamping plate, a fixing plate, and a fixing bolt. One end of the clamping plate is rotatably connected to the mounting plate, and the other end of the clamping plate is provided with a fixing hole. The fixing hole is provided with a thread, and the fixing bolt is threadedly connected to the fixing hole. The fixing plate is fixedly connected to one end of the fixing bolt.

[0018] By adopting the above technical solution, when the mounting plate rises to form an oil circuit with the lifting sleeve and the auxiliary oil pipe outlet, the clamping plate can accurately clamp the bearing box. The mounting plate and the bearing plate are fixedly connected by fixing bolts, ensuring the precise positioning of the mounting plate in a specific position and preventing displacement or shaking during equipment operation. This ensures the stability and accuracy of the oil circuit between the oil chamber slider and the auxiliary oil pipe, providing a reliable foundation for the formation and testing of the oil film. Multiple sets of fixing components are distributed at both ends of the mounting plate, which can evenly bear the weight of the mounting plate and its components, as well as various forces generated during operation, effectively enhancing the stability of the entire structure.

[0019] Preferably, the two ends of the bearing housing are provided with multiple sets of fixing grooves, which cooperate with fixing components.

[0020] By adopting the above technical solution, when the mounting plate rises to the preset position where the oil circuit is connected, the clamping plate can be directly inserted into the corresponding fixing groove. The groove wall of the fixing groove can restrict the displacement of the clamping plate in the horizontal and vertical directions, avoiding the clamping plate from failing to fix due to vibration or force displacement. It can ensure that the mounting plate is in the same preset position every time it is fixed, without the need for repeated calibration. This not only ensures the precise docking of the lifting sleeve and the auxiliary oil pipe outlet, but also keeps the initial test position of the oil cavity slider consistent, reducing the fluctuation of test data caused by the positioning deviation of the mounting plate.

[0021] Preferably, an opening assembly is provided at the outlet end of the auxiliary oil pipe. The opening assembly includes a sliding sleeve, two sets of baffles, and two sets of return springs. The two sets of baffles are respectively rotatably connected to both sides of the bottom of the sliding sleeve. One end of each set of return springs is rotatably connected to the inner wall of the sliding sleeve, and the other end of the return spring is rotatably connected to one side of the baffle. The sliding sleeve is slidably disposed at the outlet end of the auxiliary oil pipe, and a push block is provided on the upper part of the outer side of the sliding sleeve.

[0022] By adopting the above technical solution, when the lifting sleeve is not engaged with the outlet of the auxiliary oil pipe, the two sets of baffles will close naturally under the tension of the return spring, forming a tight sealing surface, which can effectively prevent the leakage of high-pressure oil in the auxiliary oil pipe. When the lifting sleeve rises to the push block position, the push block pushes the sliding sleeve to move upward, the baffle loses the constraint of the return spring and is pushed open by the outlet of the auxiliary oil pipe, the oil circuit is automatically connected, and the high-pressure oil can flow smoothly into the oil chamber slider.

[0023] Preferably, a sealing groove is provided on the bottom of the bearing box at the outlet end of the auxiliary oil pipe, and a sealing gasket is provided in the sealing groove.

[0024] By adopting the above technical solution, when the lifting sleeve rises and connects with the outlet of the auxiliary oil pipe, the sealing gasket is tightly squeezed between the sealing groove and the top of the lifting sleeve, forming a multi-seal structure. The sealing groove provides precise installation positioning and lateral constraint for the sealing gasket, preventing the gasket from shifting due to pressure. The elastic deformation of the sealing gasket itself can fill the tiny gaps on the mating surface. Even if there are processing errors or uneven surfaces, reliable sealing can be achieved through deformation compensation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: When the locking mechanism locks the telescopic rod, the telescopic rod no longer rotates. When the mounting plate rotates through the secondary rotating base, the mounting plate, the movable slider, the rotating rod, and the telescopic rod form a swing guide rod mechanism. When the mounting plate rotates, the oil cavity slider mounted on the mounting plate slides along the groove towards the center of the mounting plate, thereby changing the relative positional relationship between the oil cavity slider and the object being measured. This provides a basis for accurately controlling the formation and testing of the oil film. The lifting sleeve is slidably set above the mounting hole of the movable slider. Through the engagement with the thread at the bottom of the mounting hole, the lifting sleeve rises when the oil cavity slider is installed. When the telescopic rod drives the mounting plate to rise, the lifting sleeve and the outlet of the secondary oil pipe form an oil path to the oil cavity slider.

[0026] When the lifting sleeve is not engaged with the outlet of the auxiliary oil pipe, the two sets of baffles close naturally under the tension of the return spring, forming a tight seal surface, which can effectively prevent the leakage of high-pressure oil in the auxiliary oil pipe. When the lifting sleeve rises to the push block position, the push block pushes the sliding sleeve upward, the baffle loses the constraint of the return spring and is pushed open by the outlet of the auxiliary oil pipe, the oil circuit is automatically connected, and the high-pressure oil can flow smoothly into the oil chamber slider. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0028] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the support box in the embodiment.

[0029] Figure 3 This is a schematic diagram of the telescopic rotation mechanism in the embodiment.

[0030] Figure 4 This is a schematic diagram of the shrinkage mechanism in the embodiment.

[0031] Figure 5 This is a cross-sectional schematic diagram of the opening component structure in the embodiment.

[0032] Figure 6 This is a schematic diagram of the oil cavity slider in the embodiment.

[0033] Explanation of reference numerals in the attached drawings: 1. Bearing housing; 11. Oil inlet; 12. Main oil pipe; 13. Auxiliary oil pipe; 14. Fixing groove; 15. Sealing groove; 16. Sealing gasket; 2. Mounting plate; 21. Slide groove; 22. Fixing assembly; 221. Clamping plate; 2211. Fixing hole; 222. Fixing plate; 223. Fixing bolt; 3. Telescopic rotating mechanism; 31. Telescopic rod; 311. Locking hole; 32. Main rotating base; 33. Auxiliary rotating base; 34. Locking mechanism. Components; 341, Locking rod; 3411, Threaded hole; 342, Support rod; 3421, Guide hole; 343, Locking nut; 344, Locking screw; 4, Retraction mechanism; 41, Moving slider; 411, Mounting hole; 42, Lifting sleeve; 43, Rotating rod; 5, Opening assembly; 51, Sliding sleeve; 52, Baffle; 53, Return spring; 54, Push block; 6, Oil chamber slider; 61, Oil replenishment port; 62, Connecting plate; 63, Distance sensor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses a multi-slider assembly structure for testing oil film stiffness. (Refer to...) Figure 1 , Figure 2 and Figure 6The system includes a support housing 1, a mounting plate 2, and multiple sets of oil chamber sliders 6. An oil inlet 11 is provided on one side of the support housing 1. A main oil pipe 12 and multiple sets of auxiliary oil pipes 13 are installed inside the support housing 1. The main oil pipe 12 is installed on the oil inlet 11 inside the support housing 1 and is fixedly connected to the oil inlet 11. The inlet ends of the multiple sets of auxiliary oil pipes 13 are installed on the main oil pipe 12, and the auxiliary oil pipes 13 are connected to the main oil pipe 12. The outlet ends of the multiple sets of auxiliary oil pipes 13 are installed through the bottom of the support housing 1. A telescopic rotating mechanism 3 is provided between the support housing 1 and the mounting plate 2. The mechanism 3 drives the mounting plate 2 to move longitudinally up and down and rotate. Multiple sets of retraction mechanisms 4 are installed on the mounting plate 2, and multiple sets of oil cavity sliders 6 are respectively mounted on the retraction mechanisms 4. The retraction mechanisms 4 drive the oil cavity sliders 6 to slide towards the center of the mounting plate 2. Through the longitudinal movement and rotation of the telescopic rotation mechanism 3, the oil cavity sliders 6 connect to the outlet end of the auxiliary oil pipe 13. A connecting plate 62 is installed on one side of the oil cavity sliders 6, and a distance sensor 63 is installed on the connecting plate 62. The distance sensor 63 is used to measure the thickness of the oil film. After sliding, the multiple sets of oil cavity sliders 6 are aligned with the outlet of the auxiliary oil pipe 13. Multiple sets of fixing components 22 are provided at both ends of the mounting plate 2. The fixing components 22 include a clamping plate 221, a fixing plate 222, and a fixing bolt 223. One end of the clamping plate 221 is rotatably connected to the mounting plate 2, and the other end of the clamping plate 221 is provided with a fixing hole 2211. The fixing hole 2211 is provided with a thread, and the fixing bolt 223 is threadedly connected to the fixing hole 2211. The fixing plate 222 is fixedly connected to one end of the fixing bolt 223. Multiple sets of fixing slots 14 are provided at both ends of the bearing box 1. The telescopic rod 31 drives the mounting plate 2 to rise to the top. One end of the clamping plate 221 rotates to the fixing slot 14. The fixing bolt 223 is tightened so that the fixing plate 222 is pressed against the fixing slot 14. After the mounting plate 2 is fixed to the bearing box 1, the test is performed.

[0036] Reference Figure 1 and Figure 3The telescopic rotation mechanism 3 includes a telescopic rod 31, a main rotation base 32, a secondary rotation base 33, and two sets of locking assemblies 34. Each locking assembly 34 includes a locking rod 341, a support rod 342, a locking nut 343, and a locking screw 344. One end of the telescopic rod 31 is rotatably connected to the middle portion of the bearing housing 1 via the main rotation base 32. One end of the telescopic rod 31 is bolted to one end of the main rotation base 32, and the other end of the main rotation base 32 is bolted to the bearing housing 1. The other end of the telescopic rod 31 is rotatably connected to the middle portion of the top of the mounting plate 2 via the secondary rotation base 33, and the other end of the telescopic rod 31 is bolted to one end of the secondary rotation base 33. The other end of the secondary rotation base 33 is bolted to the mounting plate 2. At both ends of the telescopic rod 31... A locking hole 311 is provided in which the telescopic rod 31 is radially penetrated. One end of the locking rod 341 and the support rod 342 are respectively fixedly connected to the mounting plate 2 or the bearing box 1 on both sides of the telescopic rod 31. The other end of the locking rod 341 is provided with a threaded hole 3411, and the other end of the support rod 342 is provided with a guide hole 3421. The locking nut 343 is rotatably connected to one side of the support rod 342. The locking screw 344 is threadedly connected to the locking nut 343. The locking screw 344 reaches the guide hole 3421 through the rotation of the locking nut 343. After the locking screw 344 is rotated to pass through the guide hole 3421 and the locking hole 311 that is radially penetrated through the telescopic rod 31, it cooperates with the threaded hole 3411 provided on the other end of the locking rod 341 to fix the rotation of the telescopic rod 31.

[0037] Reference Figure 1 , Figure 3 and Figure 4A groove 21 along the center direction of the mounting plate 2 is provided on the mounting plate 2. The retraction mechanism 4 includes a movable slider 41, a lifting sleeve 42, and a rotating rod 43. The movable slider 41 is slidably disposed on the groove 21. One end of the rotating rod 43 is rotatably connected to the movable slider 41, and the other end of the rotating rod 43 is rotatably connected to the telescopic rod 31. After the locking assembly 34 locks the telescopic rod 31 at the secondary rotating base 33, the mounting plate 2 and the telescopic rod 31 are fixed, causing the mounting plate 2 to rotate around the main rotating base 32. At this time, the rotating rod 43 and the movable slider 41 do not move. Rotating the mounting plate 2 adjusts the force position of the oil cavity slider 6, avoiding long-term testing in one position, which affects the test accuracy. The secondary rotating base 33 is unlocked, and the other... After the locking assembly 34 of the group locks with the telescopic rod 31 at the main rotating base 32, the bearing box 1 is fixed to the telescopic rod 31. The mounting plate 2 rotates around the telescopic tube through the auxiliary rotating base 33. At this time, the telescopic rod 31 is fixed. The mounting plate 2, the movable slider 41 and the rotating rod 43 form a swing guide rod mechanism. When the mounting plate 2 rotates, the movable slider 41 slides on the slide groove 21 of the mounting plate 2 through the rotating rod 43, so that the position of the oil chamber slider 6 is adjusted according to the position of the measured static pressure slide rail. The middle part of the movable slider 41 is provided with a mounting hole 411. The lower part of the mounting hole 411 is provided with a thread. The lifting sleeve 42 is slidably set on the upper part of the mounting hole 411. The other end of the fixing rod is fixedly connected to the telescopic rod 31.

[0038] Reference Figure 4 , Figure 5 and Figure 6A sealing groove 15 is provided on the bottom of the bearing housing 1 at the outlet end of the auxiliary oil pipe 13, and a sealing gasket 16 is provided inside the sealing groove 15. An opening assembly 5 is provided at the outlet end of the auxiliary oil pipe 13. The opening assembly 5 includes a sliding sleeve 51, two sets of baffles 52, and two sets of return springs 53. The two sets of baffles 52 are respectively rotatably connected to both sides of the bottom of the sliding sleeve 51. One end of the single set of return springs 53 is rotatably connected to the inner wall of the sliding sleeve 51, and the other end of the return spring 53 is rotatably connected to one side of the baffle 52. The sliding sleeve 51 is slidably disposed at the outlet end of the auxiliary oil pipe 13. A push block 54 is provided on the upper part of the outer side of the sliding sleeve 51. An oil replenishment port 61 is provided on the top of the oil cavity slider 6, and a thread is provided on the lower part of the outer side of the oil replenishment port 61. The oil cavity slider 6 is threaded through the oil filling port 61 and the threaded through the mounting hole 411 of the movable slider 41. When the mounting plate 2 and the carrier box 1 are fixed by the fixing component 22, the opening component 5 is opened to prevent oil leakage when the oil cavity slider 6 is not installed. When the oil cavity slider 6 is installed, the oil outlet pushes out the lifting sleeve 42 in the mounting hole 411. The lifting sleeve 42 pushes the push block 54 to open the baffle 52 and allow high pressure oil to enter the oil cavity slider 6. The lifting sleeve 42 cooperates with the sealing groove 15 and the sealing gasket 16 to prevent oil from spraying out. When the mounting plate 2 and the carrier box are not fixed, the telescopic rod 31 slides down to the bottom and the oil cavity slider 6 is installed. The telescopic rod 31 then slides up to open the opening component 5 so that the oil can enter the oil cavity slider 6.

[0039] The working principle of the multi-slider assembly structure for oil film stiffness testing in this application is as follows: The oil inlet 11 on one side of the bearing housing 1 is connected to a high-pressure oil source. The oil first enters the main oil pipe 12 fixedly connected inside the housing, and then is diverted through the main oil pipe 12 to multiple connected auxiliary oil pipes 13, finally reaching the outlet end at the bottom of the auxiliary oil pipe 13. At this time, the outlet of the auxiliary oil pipe 13 is sealed by the opening assembly 5 to prevent leakage. The telescopic rod 31 drives the mounting plate 2 to slide upward. As the mounting plate 2 rises, after reaching the fixed position, one end of the clamping plate 221 rotates to the fixing groove 14. The fixing bolt 223 is tightened to make the fixing plate 222 abut against the fixing groove 14, so that the mounting plate 2 is fixed to the bearing housing 1. The thread of the oil cavity slider 6 oil supply port 61 passes through... The threaded engagement within the mounting hole 411 of the movable slider 41 pushes the lifting sleeve 42 upwards. The top of the lifting sleeve 42 contacts the push block 54 of the opening assembly 5 at the outlet of the auxiliary oil pipe 13, and pushes the push block 54 to drive the sliding sleeve 51 to slide upwards along the auxiliary oil pipe 13. When the sliding sleeve 51 slides upwards, the auxiliary oil pipe 13 presses against the two sets of baffles 52, overcoming the elastic force of the return spring 53, causing the baffles 52 to open around the rotation point. The oil passage of the auxiliary oil pipe 13 is opened, allowing oil to enter the oil chamber slider 6. The lifting sleeve 42 tightly fits the sliding sleeve 51 with the sealing groove 15 and the sealing gasket 16 at the outlet of the auxiliary oil pipe 13, forming a sealing structure to prevent oil from spraying out. The locking assembly 34 at the auxiliary rotating base 33 is operated to lock the screw. Rod 344 is tightened through the guide hole 3421 of support rod 342 and the locking hole 311 of telescopic rod 31, and the threaded hole 3411 of locking rod 341, thus fixing telescopic rod 31 to mounting plate 2. The locking assembly 34 at the main rotating base 32 is then released, allowing mounting plate 2 to rotate around the main rotating base 32. During the rotation of mounting plate 2, since telescopic rod 31 is fixed to mounting plate 2, rotating rod 43 and moving slider 41 have no relative movement. Oil cavity slider 6 rotates only with the mounting plate 2 as a whole, thereby adjusting its contact force position with the hydrostatic slide rail. This avoids component wear caused by long-term testing in the same position, which affects the accuracy of oil film thickness detection. The locking assembly 34 at the secondary rotating base 33 is then released, and the main... The locking assembly 34 at the rotating base 32 locks the telescopic rod 31 and the bearing housing 1 with the locking screw 344, thus fixing the telescopic rod 31 and the bearing housing 1. At this time, the mounting plate 2 can rotate around the secondary rotating base 33, so that the mounting plate 2, the movable slider 41, and the rotating rod 43 form a swing guide rod mechanism. When the mounting plate 2 rotates around the secondary rotating base 33, one end of the rotating rod 43 is fixed with the telescopic rod 31, and the other end drives the movable slider 41 to slide along the slide groove 21 of the mounting plate 2 towards the center or edge of the mounting plate 2. During the sliding process of the movable slider 41, it drives the oil cavity slider 6 fixed on it to move synchronously until the oil cavity slider 6 is precisely aligned with the target detection position of the hydrostatic slide rail, thus meeting the detection requirements of different hydrostatic slide rail positions.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-slider assembly structure for testing oil film stiffness, characterized in that: The system includes a support housing (1), a mounting plate (2), and multiple sets of oil chamber sliders (6). An oil inlet (11) is provided on one side of the support housing (1). A main oil pipe (12) and multiple sets of auxiliary oil pipes (13) are provided inside the support housing (1). The main oil pipe (12) is fixedly connected to the oil inlet (11). The inlet ends of the multiple sets of auxiliary oil pipes (13) are connected to the main oil pipe (12), and the outlet ends of the multiple sets of auxiliary oil pipes (13) are disposed through the bottom of the support housing (1). An extension is provided between the support housing (1) and the mounting plate (2). The telescopic rotating mechanism (3) drives the mounting plate (2) to rise and rotate longitudinally. The mounting plate (2) is provided with multiple sets of retraction mechanisms (4). Multiple sets of oil cavity sliders (6) are respectively set on multiple sets of retraction mechanisms (4). The retraction mechanism (4) drives the oil cavity sliders (6) to slide along the center direction of the mounting plate (2). A connecting plate (62) is provided on one side of the oil cavity sliders (6). A distance sensor (63) is provided on the connecting plate (62). After the multiple sets of oil cavity sliders (6) slide, they are aligned with the outlet of the auxiliary oil pipe (13). The telescopic rotation mechanism (3) includes a telescopic rod (31), a main rotation base (32), a secondary rotation base (33), and two sets of locking components (34). One end of the telescopic rod (31) is rotatably connected to the middle part of the bearing box (1) through the main rotation base (32). One end of the telescopic rod (31) is detachably connected to one end of the main rotation base (32), and the other end of the main rotation base (32) is detachably connected to the bearing box (1). The other end is rotatably connected to the middle part of the top of the mounting plate (2) via the auxiliary rotating base (33). The other end of the telescopic rod (31) is detachably connected to one end of the auxiliary rotating base (33), and the other end of the auxiliary rotating base (33) is detachably connected to the mounting plate (2). The two sets of locking components (34) are respectively set on the main rotating base (32) and the auxiliary rotating base (33). The two ends of the telescopic rod (31) are provided with locking holes (311) that penetrate the telescopic rod (31) radially. The retraction mechanism (4) includes a movable slider (41), a lifting sleeve (42), and a rotating rod (43). The movable slider (41) is slidably disposed on the slide groove (21). The middle part of the movable slider (41) is provided with a mounting hole (411). The lower part of the mounting hole (411) is provided with a thread. The lifting sleeve (42) is slidably disposed on the upper part of the mounting hole (411). One end of the rotating rod (43) is rotatably connected to the movable slider (41), and the other end of the rotating rod (43) is rotatably connected to the telescopic rod (31).

2. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: The locking assembly (34) includes a locking rod (341), a support rod (342), a locking nut (343), and a locking screw (344). One end of the locking rod (341) and the support rod (342) are respectively mounted on the mounting plates (2) or the bearing housing (1) on both sides of the telescopic rod (31). The other end of the locking rod (341) is provided with a threaded hole (3411), and the other end of the support rod (342) is provided with a guide hole (3421). The locking nut (343) is rotatably connected to one side of the support rod (342), and the locking screw (344) is threadedly connected to the locking nut (343).

3. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: The mounting plate (2) is provided with multiple sets of sliding grooves (21) along the center direction of the mounting plate (2).

4. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: The top of the oil cavity slider (6) is provided with an oil replenishment port (61), and the lower part of the outer side of the oil replenishment port (61) is provided with a thread.

5. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: The mounting plate (2) has multiple sets of fixing components (22) at both ends. Each fixing component (22) includes a clamping plate (221), a fixing plate (222), and a fixing bolt (223). One end of the clamping plate (221) is rotatably connected to the mounting plate (2), and the other end of the clamping plate (221) is provided with a fixing hole (2211). The fixing hole (2211) is provided with a thread, and the fixing bolt (223) is threadedly connected to the fixing hole (2211). The fixing plate (222) is fixedly connected to one end of the fixing bolt (223).

6. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: The two ends of the bearing box (1) are provided with multiple sets of fixing grooves (14), which cooperate with the fixing components (22).

7. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: An opening assembly (5) is provided at the outlet end of the auxiliary oil pipe (13). The opening assembly (5) includes a sliding sleeve (51), two sets of baffles (52), and two sets of return springs (53). The two sets of baffles (52) are rotatably connected to the two sides of the bottom of the sliding sleeve (51). One end of a single set of return springs (53) is rotatably connected to the inner wall of the sliding sleeve (51), and the other end of the return spring (53) is rotatably connected to one side of the baffle (52). The sliding sleeve (51) is slidably disposed at the outlet end of the auxiliary oil pipe (13). A push block (54) is provided on the upper part of the outer side of the sliding sleeve (51).

8. The multi-slider assembly structure for oil film stiffness testing according to claim 1, characterized in that: A sealing groove (15) is provided on the bottom of the bearing box (1) at the outlet end of the auxiliary oil pipe (13), and a sealing gasket (16) is provided in the sealing groove (15).

Images