Static pressure rotary table device

Abstract

The static pressure rotary table device comprises a static pressure rotary table body and an oil supply assembly, the oil supply assembly comprises an oil pump, an oil tank, an oil inlet pipe and an oil outlet pipe, the oil pump is suitable for guiding oil in the oil tank into the static pressure rotary table body through the oil inlet pipe, and then an oil film for supporting is formed; the oil outlet pipe is suitable for discharging oil in the static pressure rotary table main body, the two oil inlet filtering parts are connected with the oil inlet pipe, the oil inlet filtering parts are suitable for filtering oil entering the static pressure rotary table main body, driving assemblies and oil inlet filtering nets are arranged in the oil inlet filtering parts, and the oil inlet filtering nets are connected with the oil outlet pipe. The driving assembly is connected with the oil inlet filter screen so as to be suitable for driving the oil inlet filter screen to rotate, then centrifugal force is generated to separate impurities attached to the oil inlet filter screen, different filter assemblies are arranged for an oil inlet part and an oil outlet part respectively, differential self-cleaning treatment is carried out according to different impurity contents, and the filter efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of static pressure equipment, and in particular to a static pressure turntable device. Background Art

[0002] At present, the hydrostatic turntable device, as a precision mechanical component, plays an important role in industrial production. Its working principle relies on the static pressure of the oil to achieve stable rotation of the turntable. During the operation of the hydrostatic turntable, the oil not only plays a role in lubrication and cooling, but also transmits the necessary static pressure. However, as the oil circulates in the system, its quality will gradually decline and contain impurities and wear particles, which will have an adverse effect on the performance and life of the turntable.

[0003] After searching, it was found that the Chinese invention patent with the authorization announcement number CN116255398B disclosed a static pressure turntable device. The patent includes an oil supply component, which supplies oil through an oil inlet pipe and discharges oil through an oil outlet pipe, and sets two sets of filter components that can filter the oil in turn to filter the discharged waste oil, as well as a flushing pipe for cleaning the filter component and an oil discharge pipe for discharging the waste oil, so as to realize the continuous operation of the static pressure turntable; however, the patent only performs filtering treatment on the oil discharge part, and the new oil also needs to be filtered before adding it to the system to ensure its purity. In particular, when the new oil and the old oil are mixed, strict filtering is required at the oil intake stage to prevent impurities from causing damage to the system. Damage, in the oil discharge process, in order to remove impurities in the oil, the patent adopts a backwashing method. Although this method is effective, it is complicated to operate, and whether new oil or cleaning agent is used for backwashing, it will increase additional costs and time. In addition, the existing backwashing device is insufficient in avoiding blockage and cannot directly clean out larger impurities filtered out during the oil discharge process, which further limits its application effect. At the same time, the oil inlet and the oil discharge part must also be filtered in different ways. Since the oil inlet has fewer impurities, a lower-precision filtering method should be used to reduce resistance, while the oil discharge part requires a higher filtering accuracy to remove more impurities and pollutants. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art, and different filter components are respectively arranged for the oil inlet and the oil outlet, and differentiated self-cleaning treatments are performed according to different impurity contents to improve the filtering efficiency.

[0005] In order to solve the above technical problems, the technical solution of the present invention is a static pressure turntable device, comprising:

[0006] Static pressure turntable body;

[0007] An oil supply assembly, the oil supply assembly comprising an oil pump, an oil tank, an oil inlet pipe and an oil outlet pipe;

[0008] The oil pump is suitable for introducing the oil in the oil tank into the main body of the static pressure turntable through the oil inlet pipe, thereby forming a supporting oil film;

[0009] The oil outlet pipe is suitable for discharging the oil in the main body of the static pressure turntable;

[0010] Two groups of oil inlet filter components, both of which are connected to the oil inlet pipe, and the oil inlet filter components are suitable for filtering the oil entering the main body of the static pressure turntable;

[0011] The oil inlet filter component is provided with a driving assembly and an oil inlet filter screen, wherein the driving assembly is connected to the oil inlet filter screen to drive the oil inlet filter screen to rotate, thereby generating centrifugal force to separate impurities attached to the oil inlet filter screen;

[0012] Two sets of oil drain filter components, both of which are connected to the oil outlet pipe, and the oil drain filter components are suitable for filtering the oil discharged from the static pressure turntable body;

[0013] The oil drain filter component is provided with a scraping component and an oil drain filter screen, and the scraping component includes a longitudinal moving component and a cleaning plate, one end of the cleaning plate is against the outer surface of the oil drain filter screen, and the longitudinal moving component is connected to the cleaning plate to drive the cleaning plate to move longitudinally on the oil drain filter screen, thereby scraping off impurities attached to the oil drain filter screen.

[0014] Furthermore, the oil inlet filter component is divided into an oil inlet upper housing, an oil inlet filter chamber and an oil inlet lower housing which are connected in sequence;

[0015] A cavity is provided in the oil inlet upper shell, a baffle is provided in the cavity, the baffle divides the cavity into an installation chamber and an oil inlet, an oil inlet filter chamber is provided in the oil inlet filter chamber, the oil inlet filter screen is rotatably installed in the oil inlet filter chamber, the oil inlet filter chamber is communicated with the oil inlet, and an oil outlet is provided in the oil inlet lower shell, the oil outlet is communicated with the oil inlet filter chamber;

[0016] The oil inlet is suitable for introducing oil into the oil inlet filter cavity and is placed outside the oil inlet filter screen, and the oil enters the oil inlet filter screen and flows out through the oil outlet;

[0017] The driving assembly is a driving motor, which is mounted on the mounting chamber. The output shaft of the driving motor is connected to the top of the oil inlet filter so as to drive the oil inlet filter to rotate in the oil inlet filter chamber.

[0018] Furthermore, the oil inlet filter component further comprises a linear moving assembly and a separation cylinder, a sliding groove is provided in the oil inlet lower shell, and the linear moving assembly is suitable for connecting with the separation cylinder, thereby driving the separation cylinder to move in the oil inlet filter cavity and the sliding groove;

[0019] When the separation cylinder is located in the oil inlet filter cavity, the oil inlet filter cavity is divided into an inner cavity and an outer cavity, the oil inlet is communicated with the inner cavity, and the oil inlet is suitable for introducing oil into the inner cavity and contacting the oil inlet filter screen;

[0020] When the separation cylinder is located in the sliding groove, the oil inlet filter is driven to rotate, thereby separating the impurities attached to the surface of the oil inlet filter into the outer cavity;

[0021] The oil inlet filter chamber is detachably provided with a first disassembly plate, and the first disassembly plate is communicated with the outer cavity.

[0022] Further, the linear motion assembly is located in the installation chamber, and the linear motion assembly includes a connecting rod, a reciprocating screw rod, a one-way bearing and a transmission sleeve;

[0023] A synchronous belt is sleeved between the connecting rod and the output shaft of the driving motor via a synchronous wheel, the connecting rod and the reciprocating screw rod are connected via the one-way bearing, the reciprocating screw rod passes through the installation chamber, the oil inlet filter chamber and the sliding groove, and is rotatably installed in the sliding groove;

[0024] At least one transmission sleeve is mounted on the outside of the reciprocating screw rod, and the transmission sleeve is connected to the separation cylinder. The reciprocating screw rod is suitable for being driven to rotate and thereby driving the transmission sleeve to move in the axial direction of the reciprocating screw rod, thereby driving the separation cylinder to move;

[0025] A guide rod is also connected in the sliding groove, and the transmission sleeve slides on the outer peripheral surface of the guide rod when moving.

[0026] Further, a rotating groove is provided on the inner wall of the oil inlet filter, an adjustable filter is rotatably arranged in the rotating groove, the outer peripheral surface of the adjustable filter is against the inner wall of the oil inlet filter, the oil inlet filter and the adjustable filter are both provided with a plurality of transverse grooves penetrating through the oil inlet filter and the adjustable filter, the transverse grooves on the oil inlet filter and the transverse grooves on the adjustable filter are staggered to form oil holes, and the oil holes formed when the adjustable filter is in the initial position are circular holes;

[0027] A fixing plate 1 is arranged on the top wall of the oil inlet filter screen, and two symmetrically arranged fixing plates 2 are arranged on the top of the adjusting filter screen, and the fixing plate 1 is located in the middle position of the two fixing plates 2;

[0028] The two fixing plates 2 are connected to the fixing plate 1 through a retracting mechanism, and the retracting mechanism includes a telescopic rod 1 and a spring 1, and the two ends of the telescopic rod 1 are respectively connected to the fixing plate 1 and the fixing plate 2, and the spring is set outside the telescopic rod 1, and the two ends of the spring 1 are respectively connected to the fixing plate 1 and the fixing plate 2;

[0029] The contraction mechanism is suitable for cooperating with the adjustment filter to produce an angular displacement in the rotating groove, and the adjustment filter is suitable for producing an angular displacement under the squeeze of the oil passing through the oil hole, thereby changing the size of the oil hole.

[0030] Further, the oil drain filter component is divided into an oil drain upper shell, a connecting plate and an oil drain filter chamber which are connected in sequence, the oil drain filter is installed in the oil drain filter chamber, and the internal spaces of the oil drain upper shell, the connecting plate and the oil drain filter chamber are connected to each other;

[0031] The longitudinal moving assembly comprises a slide rail, a slider, an air intake cylinder and a matching rod, the slide rail is connected to the inner wall of the oil drain filter chamber, the slider is slidably connected to the inside of the slide rail, the slider is connected to the cleaning plate, a limiting block is connected to the slider, a limiting groove is provided in the slide rail, the limiting block slides in the limiting groove following the slider, the air intake cylinder is connected to the outside of the oil drain filter chamber, the matching rod is slidably arranged in the air intake cylinder, the bottom of the matching rod extends into the slide rail and is connected to the slider, a sealing portion is provided on the top of the matching rod, the sealing portion is in contact with the inner wall of the air intake cylinder, a contraction spring is sleeved on the outside of the matching rod, one end of the contraction spring is connected to the bottom of the sealing portion, and the other end of the contraction spring is connected to the bottom inner wall of the air intake cylinder;

[0032] An air intake pipe is arranged at the top of the air intake cylinder, and the air intake pipe is suitable for introducing compressed gas into the air intake cylinder and squeezing the sealing part, thereby driving the matching rod to move, thereby driving the sliding block and the cleaning plate to move.

[0033] Furthermore, an air inlet hole is provided in the matching rod, the portion of the cleaning plate that contacts the outer peripheral surface of the oil drain filter is a contact surface, and below the contact surface is an inclined guide surface, and the contact surface is suitable for scraping the oil on the oil drain filter and depositing it on the guide surface;

[0034] A horizontal air outlet hole is provided on the contact surface, a downward inclined air outlet hole is provided on the guide surface, the air inlet hole passes through the matching rod and the slider to the cleaning plate, and is communicated with the horizontal air outlet hole and the downward inclined air outlet hole, the horizontal air outlet hole is suitable for clearing the mesh holes on the oil drain filter, and the downward inclined air outlet hole is suitable for blowing off impurities on the oil drain filter.

[0035] Further, a receiving plate is provided at the bottom of the oil drain filter chamber, a receiving cavity is provided in the receiving plate, the receiving cavity is communicated with the space in the oil drain filter chamber, a plurality of sliding seats evenly distributed around the circumference are fixedly connected in the receiving cavity, a plurality of sliding seats are provided with sliding grooves, a connecting seat is slidably connected in the sliding groove, a second inclined plate is connected to the top of the connecting seat, a first inclined plate is connected to the bottom of the cleaning plate, a groove is provided on the inner wall of the oil drain filter chamber, and the connecting seat slides in the sliding groove while also sliding in the groove;

[0036] A second telescopic rod is arranged in the slide groove, and two ends of the second telescopic rod are respectively connected to the inner wall of the slide groove and the connecting seat, and a second spring is sleeved on the outside of the second telescopic rod, and two ends of the second spring are respectively connected to the inner wall of the slide groove and the connecting seat;

[0037] One end of the first inclined plate close to the oil drain filter is a blocking surface perpendicular to the bottom surface of the cleaning plate, and the blocking surface is suitable for limiting the position of impurities scraped off the surface of the oil drain filter by the cleaning plate;

[0038] In the initial state, one end of the second inclined plate close to the oil drain filter screen abuts against the outer surface of the oil drain filter screen, and the upper surface of the connecting seat abuts against the inner wall of the groove. In the initial state, the second inclined plate and the connecting seat are suitable for closing the passage connecting the oil drain filter chamber and the inner space of the receiving plate;

[0039] The first inclined plate is suitable for following the movement of the cleaning plate, thereby squeezing the second inclined plate and driving the second inclined plate and the corresponding connecting seat to move in the slide groove in a direction away from the oil drain filter, so that the oil drain filter chamber and the inner space of the receiving plate are communicated, the blocking surface and the cleaning plate are located directly above the receiving cavity, and impurities accumulated on the cleaning plate and the blocking surface fall into the receiving cavity;

[0040] A second disassembly plate is detachably provided at the bottom of the storage plate, and the second disassembly plate is communicated with the interior of the storage cavity.

[0041] Furthermore, a magnetic cone barrel is provided in the oil drain upper shell, and the magnetic cone barrel is suitable for adsorbing some metal substances in the oil entering the oil drain upper shell;

[0042] A mounting seat is provided in the oil drain filter chamber, and a plurality of mounting grooves are provided in the mounting seat. The bottom of the oil drain filter is inserted in the mounting groove. A lifting cover is detachably provided on the top of the oil drain filter chamber. The top of the oil drain filter is connected to the lifting cover, and a plurality of auxiliary filters arranged at intervals are provided on the bottom of the lifting cover. The bottoms of the auxiliary filters are all inserted in the corresponding mounting grooves. The lifting cover is suitable for driving the auxiliary filter and the oil drain filter to be pulled out into the interior of the oil drain filter chamber after being disconnected from the oil drain filter chamber.

[0043] Furthermore, a mixing assembly is provided in the oil tank, and the mixing assembly includes an old oil storage tank, a new oil storage tank, a pre-mixing chamber, a delivery chamber and a main storage tank;

[0044] The oil inlet end of the old oil storage tank is connected to the oil outlet pipe, the oil outlet ends of the old oil storage tank and the new oil storage tank are both connected to the premixing chamber, and the opening size of the oil outlet end of the new oil storage tank is twice that of the oil outlet end of the old oil storage tank;

[0045] The old oil storage tank is located at one side of the premixing chamber, the new oil storage tank is located at the top of the premixing chamber, a power impeller is rotatably installed in the premixing chamber, a rotary motor is installed outside the premixing chamber, and the rotary motor is connected to the power impeller to drive the power impeller to rotate in the premixing chamber;

[0046] The premixing chamber is connected to the conveying chamber, a control motor is installed outside the conveying chamber, a stirring rod is rotatably installed in the conveying chamber, the control motor is connected to the stirring rod to drive the stirring rod to rotate in the conveying chamber, and the axis directions of the power impeller and the stirring rod are perpendicular to each other;

[0047] The delivery chamber is connected to the main storage tank, and the main storage tank is connected to the oil pump.

[0048] By adopting the above technical solution, the present invention has the following beneficial effects:

[0049] 1. Through the arrangement of structures such as the oil inlet filter component and the oil discharge filter component, the oil in the oil inlet pipe and the oil discharge pipe are filtered according to the different impurities. At the same time, two groups of oil inlet filter components and oil discharge filter components are arranged. The two groups can work simultaneously or alternately. When working alternately, the filter component in idle state can start the self-cleaning mode to ensure the filtering effect.

[0050] 2. Through the arrangement of structures such as a rotatable oil inlet filter and a separator cylinder, when the oil inlet filter component is in working condition, the separator cylinder is in the oil inlet filter chamber and divides the oil inlet filter chamber into an inner chamber and an outer chamber. The oil contacts the oil inlet filter in the inner chamber and is filtered. When the oil inlet filter component is in a self-cleaning state, the separator cylinder moves to the oil inlet lower shell body to communicate with the inner chamber and the outer chamber. The oil inlet filter is driven to rotate and the impurities attached to its surface are thrown into the outer chamber through the centrifugal force generated by rotation to achieve self-cleaning. After cleaning, the separator cylinder is reset. Since the oil in the oil inlet part contains fewer impurities, a simpler and more efficient self-cleaning method is adopted.

[0051] 3. Through the setting of structures such as the oil inlet filter and the adjusting filter, transverse grooves are opened on the oil inlet filter and the adjusting filter. The transverse grooves on the two are staggered to form oil holes for filtering oil. When the static pressure turntable body urgently needs to supply oil quickly to maintain stability, the oil injection can be increased. The increase in oil pressure can drive the adjusting filter to produce an angular deviation, thereby increasing the size of the oil hole, reducing the resistance to the oil while reducing the filtering accuracy, allowing the oil to pass quickly and enter the interior of the static pressure turntable body, thereby improving the ability to respond to emergencies.

[0052] 4. Through the arrangement of structures such as the longitudinal moving assembly and the cleaning plate, when the oil drain filter component is in the self-cleaning state, air is ventilated into the air inlet cylinder in the longitudinal filter component to push the matching rod to move, the matching rod drives the slider to move in the slide rail, and the slider drives the cleaning plate to move on the outer surface of the oil drain filter, thereby scraping off a large amount of impurities attached to the oil drain filter. Since the oil drain filter is used to filter the used oil, the impurities in the used oil are relatively large and difficult to clean, so the scraping method is used to further improve the self-cleaning effect.

[0053] 5. Through the arrangement of structures such as horizontal air outlet holes and downward inclined air outlet holes, when the air inlet cylinder is ventilated, most of the gas squeezes the matching rod to realize the movement of the cleaning plate, but part of the gas enters the interior of the slider and the cleaning plate through the air inlet holes on the matching rod, and flows out from the horizontal air outlet holes and downward inclined air outlet holes on the cleaning plate. The function of the horizontal air outlet holes is to blow air in the horizontal direction to directly clear the holes on the oil drain filter to avoid blockage. The air from the downward inclined air outlet holes blows air on the outer surface of the oil drain filter to blow the impurities on the surface down to the matching cleaning plate to process the impurities on the surface.

[0054] 6. Through the arrangement of the first inclined plate and the second inclined plate and other structures, the first inclined plate moves with the cleaning plate. When the cleaning plate has completely cleaned the outer surface of the oil drain filter, the first inclined plate squeezes the second inclined plate, forcing the second inclined plate to move, thereby opening the space between the oil drain filter chamber and the receiving plate. At this time, the impurities scraped off the cleaning plate will fall into the receiving plate, achieving the effect of automatic collection and processing of impurities. The impurities can be discharged while avoiding clogging of the oil drain filter, further reducing the risk of clogging of the oil drain filter.

[0055] 7. Through the arrangement of structures such as the power impeller and the stirring rod which are arranged perpendicularly to each other in the axial direction, the oil treated by the oil discharge filter component enters the old oil storage tank, and the new oil is placed in the new oil storage tank. Both of them pass the oil inside into the pre-mixing chamber. The oil outlet of the new oil storage tank is twice that of the old oil storage tank. Therefore, when the old oil and the new oil are mixed into the pre-mixing chamber, the ratio of the old oil to the new oil is 1:2. After being stirred and mixed in two directions by the power impeller and the stirring rod, the old oil enters the main storage tank and is pumped into the oil inlet pipe by the oil pump. Through a certain proportion of stable mixing, the mixing of the new oil and the old oil is more comprehensive. While ensuring the oil quality, the stratification phenomenon caused by the uneven new and old oils in the oil film after entering the main body of the static pressure turntable is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0057] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0058] Figure 3 It is a schematic diagram of the overall structure of the oil inlet filter component of the present invention;

[0059] Figure 4 The internal structure of the oil inlet filter component of the present invention is shown in FIG. Figure 1 ;

[0060] Figure 5 The internal structure of the oil inlet filter component of the present invention is shown in FIG. Figure 2 ;

[0061] Figure 6 It is a cross-sectional view of the oil inlet filter component of the present invention;

[0062] Figure 7 It is a structural schematic diagram of the separation cylinder of the present invention;

[0063] Figure 8 It is a structural schematic diagram of the adjustment filter screen of the present invention;

[0064] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle;

[0065] Fig.10 It is a schematic diagram of the overall structure of the oil drain filter component of the present invention;

[0066] Fig.11 The internal structure of the oil drain filter component of the present invention is shown in FIG. Figure 1 ;

[0067] Fig.12 The internal structure of the oil drain filter component of the present invention is shown in FIG. Figure 2 ;

[0068] Fig.13 It is a structural schematic diagram of the auxiliary filter screen of the present invention;

[0069] Fig.14 It is a schematic diagram of the structure of the longitudinal moving assembly of the present invention;

[0070] Fig.15 For the present invention Fig.14 Enlarged view of point B in the middle;

[0071] Fig.16 A cross-sectional view of the oil drain filter chamber of the present invention;

[0072] Fig.17 For the present invention Fig.16 Enlarged view of point C in the middle;

[0073] Fig.18 It is a schematic diagram of the structure of the mixing assembly of the present invention;

[0074] Fig.19 It is a schematic diagram of the internal structure of the premixing chamber and the conveying chamber of the present invention.

[0075] In the figure: 1, oil supply assembly; 11, oil pump; 12, oil inlet pipe; 13, oil outlet pipe; 14, oil tank;

[0076] 2. Static pressure turntable body;

[0077] 3. Oil inlet filter component; 31. Oil inlet upper shell; 32. Oil inlet filter chamber; 33. Oil inlet lower shell; 34. Blocking plate; 35. Driving motor; 36. Oil inlet filter; 37. Synchronous belt; 38. Connecting rod; 39. Reciprocating screw; 310. One-way bearing; 311. Transmission sleeve; 312. Separating cylinder; 313. Oil inlet filter chamber; 314. Guide rod; 315. Rotating groove; 316. Adjusting filter; 317. Fixed plate 1; 318. Fixed plate 2; 319. Telescopic rod 1; 320. Spring 1; 321. First disassembly plate;

[0078] 4. Oil drain filter component; 41. Oil drain upper shell; 42. Connecting plate; 43. Oil drain filter chamber; 44. Storage plate; 45. Magnetic cone barrel; 46. Oil drain filter; 47. Slide rail; 48. Slider; 49. Cleaning plate; 410. First inclined plate; 411. Second disassembly plate; 412. Second inclined plate; 413. Connecting seat; 414. Sliding seat; 415. Telescopic rod 2; 416. Spring 2; 417. Intake cylinder; 418. Matching rod; 419. Contraction spring; 420. Inlet hole; 421. Horizontal outlet hole; 422. Lower inclined outlet hole; 423. Guide surface; 424. Blocking surface; 425. Auxiliary filter; 426. Lifting cover plate; 427. Mounting seat; 428. Contact surface; 429. Sealing part; 430. Slide groove; 431. Groove;

[0079] 5. Mixing assembly; 51. Old oil storage tank; 52. New oil storage tank; 53. Premixing chamber; 54. Conveying chamber; 55. Main storage tank; 56. Power impeller; 57. Control motor; 58. Stirring rod. DETAILED DESCRIPTION

[0080] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0081] Embodiment 1

[0082] like Figure 1-2 , Figure 4 , Fig.11 As shown, a static pressure turntable device comprises:

[0083] Static pressure turntable body 2;

[0084] The oil supply assembly 1 includes an oil pump 11, an oil tank 14, an oil inlet pipe 12 and an oil outlet pipe 13;

[0085] The oil pump 11 is suitable for introducing the oil in the oil tank 14 into the hydrostatic turntable body 2 through the oil inlet pipe 12, thereby forming a supporting oil film;

[0086] The oil outlet pipe 13 is suitable for discharging the oil in the hydrostatic turntable body 2;

[0087] Two groups of oil inlet filter components 3, both of which are connected to the oil inlet pipe 12, and the oil inlet filter components 3 are suitable for filtering the oil entering the static pressure turntable body 2;

[0088] The oil inlet filter component 3 is provided with a driving assembly and an oil inlet filter 36, and the driving assembly is connected to the oil inlet filter 36 to drive the oil inlet filter 36 to rotate, thereby generating centrifugal force to separate impurities attached to the oil inlet filter 36;

[0089] Two groups of oil drain filter components 4, both of which are connected to the oil outlet pipe 13, and the oil drain filter components 4 are suitable for filtering the oil discharged from the static pressure turntable body 2;

[0090] The oil drain filter component 4 is provided with a scraping component and an oil drain filter screen 46. The scraping component includes a longitudinal moving component and a cleaning plate 49. One end of the cleaning plate 49 abuts against the outer surface of the oil drain filter screen 46. The longitudinal moving component is connected to the cleaning plate 49 to drive the cleaning plate 49 to move longitudinally on the oil drain filter screen 46, thereby scraping off impurities attached to the oil drain filter screen 46.

[0091] like Figure 3-6 As shown, the oil inlet filter component 3 is divided into an oil inlet upper shell 31, an oil inlet filter chamber 32 and an oil inlet lower shell 33 which are connected in sequence;

[0092] The oil inlet upper shell 31 is provided with a cavity, and a baffle plate 34 is provided in the cavity. The baffle plate 34 divides the cavity into an installation chamber and an oil inlet. The oil inlet filter chamber 32 is provided with an oil inlet filter chamber 313. The oil inlet filter screen 36 is rotatably installed in the oil inlet filter chamber 313. The oil inlet filter chamber 313 is communicated with the oil inlet. The oil inlet lower shell 33 is provided with an oil outlet, and the oil outlet is communicated with the oil inlet filter chamber 313.

[0093] The oil inlet is suitable for introducing oil into the oil inlet filter cavity 313 and is disposed outside the oil inlet filter screen 36 , and the oil enters the oil inlet filter screen 36 and flows out through the oil outlet;

[0094] The driving component is a driving motor 35 , which is mounted on the mounting chamber. The output shaft of the driving motor 35 is connected to the top of the oil inlet filter 36 so as to drive the oil inlet filter 36 to rotate in the oil inlet filter chamber 313 .

[0095] like Figure 4-7 As shown, the oil inlet filter component 3 also includes a linear moving component and a separation cylinder 312. A sliding groove is provided in the oil inlet lower shell 33. The linear moving component is suitable for connecting with the separation cylinder 312, thereby driving the separation cylinder 312 to move in the oil inlet filter chamber 313 and the sliding groove;

[0096] When the separation cylinder 312 is located in the oil inlet filter chamber 313, the oil inlet filter chamber 313 is divided into an inner chamber and an outer chamber. The oil inlet is connected to the inner chamber, and the oil inlet is suitable for introducing oil into the inner chamber and contacting the oil inlet filter screen 36.

[0097] When the separation cylinder 312 is located in the sliding groove, the oil inlet filter 36 is driven to rotate, thereby separating the impurities attached to the surface of the oil inlet filter 36 into the outer cavity;

[0098] A first disassembly plate 321 is detachably provided on the oil inlet filter chamber 32 , and the first disassembly plate 321 is communicated with the outer cavity.

[0099] like Figure 4-5 As shown, the linear motion assembly is located in the installation chamber, and the linear motion assembly includes a connecting rod 38, a reciprocating screw rod 39, a one-way bearing 310 and a transmission sleeve 311;

[0100] A synchronous belt 37 is sleeved between the connecting rod 38 and the output shaft of the driving motor 35 through a synchronous wheel. The connecting rod 38 and the reciprocating screw rod 39 are connected through a one-way bearing 310. The reciprocating screw rod 39 passes through the installation chamber, the oil inlet filter chamber 313 and the sliding groove, and is rotatably installed in the sliding groove.

[0101] At least one transmission sleeve 311 is installed on the outside of the reciprocating screw rod 39, and the transmission sleeve 311 is connected to the separation cylinder 312. The reciprocating screw rod 39 is suitable for being driven to rotate and then drive the transmission sleeve 311 to move in the axial direction of the reciprocating screw rod 39, thereby driving the separation cylinder 312 to move;

[0102] A guide rod 314 is also connected in the sliding groove, and the transmission sleeve 311 slides on the outer peripheral surface of the guide rod 314 when moving.

[0103] like Figure 8-9 As shown, a rotating groove 315 is provided on the inner wall of the oil inlet filter 36, and an adjustable filter 316 is rotatably arranged in the rotating groove 315, and the outer peripheral surface of the adjustable filter 316 abuts against the inner wall of the oil inlet filter 36, and the oil inlet filter 36 and the adjustable filter 316 are both provided with a plurality of transverse grooves penetrating through the oil inlet filter 36 and the transverse grooves on the oil inlet filter 36 and the transverse grooves on the adjustable filter 316 are staggered to form oil holes, and the oil holes formed when the adjustable filter 316 is in the initial position are circular holes;

[0104] A fixing plate 1 317 is disposed on the top wall of the oil inlet filter 36, and two symmetrically arranged fixing plates 2 318 are disposed on the top of the adjusting filter 316, and the fixing plate 1 317 is located in the middle of the two fixing plates 2 318;

[0105] The two fixing plates 2 318 are connected to the fixing plate 1 317 via a retracting mechanism, which includes a telescopic rod 1 319 and a spring 1 320. The two ends of the telescopic rod 1 319 are connected to the fixing plate 1 317 and the fixing plate 2 318 respectively. The spring 1 320 is sleeved on the outside of the telescopic rod 1 319. The two ends of the spring 1 320 are connected to the fixing plate 1 317 and the fixing plate 2 318 respectively.

[0106] The contraction mechanism is suitable for cooperating with the adjustment filter 316 to produce an angular deviation in the rotating groove 315. The adjustment filter 316 is suitable for producing an angular deviation under the squeeze of the oil passing through the oil hole, thereby changing the size of the oil hole.

[0107] The working principle of this embodiment is as follows:

[0108] The oil pump 11 in the oil tank 14 is pumped out to the oil inlet pipe 12 through the oil pump 11 and the oil in the oil inlet pipe 12 is filtered through the oil inlet filter component 3. After filtering, it is sent to the hydrostatic turntable body 2 to form an oil film to support the turntable. After the oil in the hydrostatic turntable body 2 is used for a long time, it is discharged through the oil drain pipe, and the discharged old oil is filtered through the oil drain filter component 4. The filtered old oil and new oil are mixed in a certain proportion and can be recycled. It should be noted that a throttle valve (not shown in the figure) is connected to the output end of the oil pump 11. The throttle valve allows the pressure of the oil pumped into the oil inlet pipe 12 by the oil pump 11 to be adjusted as needed, and constant pressure and stable oil are delivered to the hydrostatic turntable body 2, so that the generated oil film can play a normal role. The throttle valve and the hydrostatic turntable body 2 are both existing technologies, and their working principles are not described in detail here.

[0109] Two groups of oil inlet filter components 3 and oil discharge filter components 4 are provided. The two oil inlet filter components 3 can work simultaneously or alternately. The oil inlet filter component 3 in a non-working state can perform self-cleaning work, and the oil discharge filter component 4 is the same. This work can be connected and disconnected through the corresponding electric control valves.

[0110] When the oil enters the oil inlet filter component 3, it first enters the oil inlet upper shell 31. The internal space of the oil inlet upper shell 31 is divided into an oil inlet and a mounting chamber by a blocking plate 34. The oil enters the oil inlet filter chamber 313 in the oil inlet filter chamber 32 from the oil inlet. At this time, the separation cylinder 312 is located in the oil inlet filter chamber 313, dividing the oil inlet filter chamber 313 into an inner cavity and an outer cavity. The oil enters the inner cavity from the oil inlet and contacts the oil inlet filter screen 36. The oil is filtered through the inside of the oil inlet filter screen 36. The filtered oil leaves the oil inlet filter component 3 through the oil inlet lower shell 33.

[0111] When the oil inlet filter component 3 needs to be self-cleaned, the drive motor 35 is started to reverse, and the oil inlet filter screen 36 is driven to reverse as a whole through the output shaft of the drive motor 35. In this process, the output shaft drives the connecting rod 38, the one-way bearing 310 and the reciprocating screw 39 to rotate through the setting of the synchronous belt 37. When the reciprocating screw 39 rotates, the transmission sleeve 311 assembled on its outside moves along the axial direction of the reciprocating screw 39, and at this time moves toward the oil inlet lower shell 33. It should be noted that the connection relationship between the transmission sleeve 311 and the reciprocating screw 39 is the prior art and is not described in detail here. When the transmission sleeve 311 moves toward the oil inlet lower shell 33, it drives the separation cylinder 312 connected thereto to move into the oil inlet lower shell 33. A sliding groove is provided in the oil inlet lower shell 33. When the separation of the separation cylinder 312 is lost, the inner cavity and the outer cavity are connected. At the same time, a guide rod 314 is also provided in the sliding groove. The separation cylinder 312 will slide on the outside of the guide rod 314 during the movement. The guide rod 314 plays a role in improving stability. When the separation cylinder 312 completely enters the sliding groove, the driving motor 35 stops reversing and switches to forward rotation. The output shaft under forward rotation drives the oil inlet filter 36 to rotate forward as a whole, and drives the connecting rod 38 to rotate through the synchronous belt 37. However, due to the setting of the one-way bearing 310, the reciprocating screw 39 does not rotate at this time, that is, the separation cylinder 312 is still located in the sliding groove at this time. During this process, the oil inlet filter 36 is driven to rotate continuously, thereby generating centrifugal force to throw impurities attached to its surface into the outer cavity. In order to achieve the effect of self-cleaning, the oil entering the oil inlet filter component 3 is divided into two types, one is the pollution-free new oil and the mixed oil of the subsequent new oil and the old oil, and the old oil is filtered by the oil discharge filter component 4 when it is discharged through the oil discharge pipe. Therefore, no matter which type, there will be no excessive impurities. Therefore, the filtering accuracy requirement of the oil inlet filter 36 is not high, and the simple setting can reduce the resistance of the oil inlet. At the same time, the impurities filtered out are not much, and there is no need for an overly cumbersome self-cleaning method. The impurities can be transferred to the outer cavity regularly by self-rotation. When the oil inlet filter 36 in the forward rotation completes the self-cleaning work, the drive motor 35 is turned from forward to reverse again, and the output shaft drives the reciprocating screw 39 to rotate again under the reverse rotation, thereby driving the separator located in the sliding groove. The partition cylinder 312 is reset to the oil inlet filter chamber 313, and the oil inlet filter chamber 313 is continued to be separated, and the inner cavity used for filtering and the outer cavity used for storing impurities are separated. It should be noted that the self-cleaning work of the entire oil inlet filter 36 is carried out in the state of oil cut-off, and the driving motor 35 will drive the rotation of the oil inlet filter 36 whether it is forward or reverse, but it has no effect on the overall self-cleaning work. In order to prevent oil from entering the installation chamber, a rotating seal can be set on the reciprocating screw 39 and the output shaft of the driving motor 35. When the self-cleaning work is completed, the partition cylinder 312 is in the oil inlet filter chamber 313, and its upper surface is against the oil inlet upper shell 31, and its lower surface is in contact with the oil inlet lower shell 33, so that the inner cavity is in a sealed state.At this time, no matter whether there is oil in the inner cavity for filtering, the impurities stored in the outer cavity can be manually cleaned by opening the first disassembly plate 321, which will not affect the normal filtering work. The oil inlet filter 36 at the oil inlet is cleaned by the above setting. The whole working process is simple and efficient, and it is mainly set for the oil at the oil inlet to have less impurities.

[0112] In addition, the oil holes on the oil inlet filter 36 for allowing oil to pass through and achieve a filtering effect are not set with a fixed size, but are adjusted by rotating the adjusting filter 316 set in the oil inlet filter 36. The oil inlet filter 36 and the adjusting filter 316 are both provided with transverse grooves of the same size. The transverse grooves on the oil inlet filter 36 and the transverse grooves on the adjusting filter 316 are combined and staggered to form the oil holes. It should be noted that the outer surface of the adjusting filter 316 needs to be in contact with the inner wall of the oil inlet filter 36. In the initial state, the oil hole formed by the adjusting filter 316 and the oil inlet filter 36 is the smallest in size and the filtering accuracy is also the highest. When an emergency occurs and the static pressure turntable body 2 needs to supply oil quickly to maintain stability, the fixed oil holes will cause damage to the oil inlet filter 36 due to the unchanged resistance to oil formed by the fixed oil holes. Forcibly accelerating the oil supply will cause damage to the oil inlet filter 36 Therefore, under the setting of the rotatable adjustable filter 316, when rapid oil supply is required, the oil accelerates to pass through the oil hole and squeezes the adjustable filter 316 to a certain extent. The squeezed adjustable filter 316 squeezes the telescopic rod 319 and the spring 320 to produce a position deviation. Due to the angular deviation of the adjustable filter 316, the transverse grooves thereon also deviate. At this time, the size of the oil hole formed by the staggered transverse grooves on the oil inlet filter 36 and the adjustable filter 316 will also become larger, so that the oil can pass quickly at the expense of a certain filtering accuracy, so as to achieve rapid oil supply to cope with emergencies without damaging the oil inlet filter 36. When the emergency oil supply is completed, the normal oil inlet speed is restored, and the adjustable filter 316 will not be squeezed. At this time, the adjustable filter 316 is reset by the telescopic rod 319 and the spring 320.

[0113] Embodiment 2

[0114] like Figure 10-15 As shown, this embodiment further includes the following structure on the basis of the first embodiment: the oil drain filter component 4 is divided into an oil drain upper shell 41, a connecting plate 42 and an oil drain filter chamber 43 which are connected in sequence, the oil drain filter 46 is installed in the oil drain filter chamber 43, and the internal spaces of the oil drain upper shell 41, the connecting plate 42 and the oil drain filter chamber 43 are connected to each other;

[0115] The longitudinal moving assembly includes a slide rail 47, a slider 48, an air inlet cylinder 417 and a matching rod 418. The slide rail 47 is connected to the inner wall of the oil drain filter chamber 43. The slider 48 is slidably connected to the inside of the slide rail 47. The slider 48 is connected to the cleaning plate 49. A limit block is connected to the slider 48. A limit groove is provided in the slide rail 47. The limit block slides in the limit groove following the slider 48. The air inlet cylinder 417 is connected to the outside of the oil drain filter chamber 43. The matching rod 418 is slidably arranged in the air inlet cylinder 417. The bottom of the matching rod 418 extends into the slide rail 47 and is connected to the slider 48. A sealing portion 429 is provided on the top of the matching rod 418. The sealing portion 429 fits the inner wall of the air inlet cylinder 417. A contraction spring 419 is sleeved on the outside of the matching rod 418. One end of the contraction spring 419 is connected to the bottom of the sealing portion 429, and the other end of the contraction spring 419 is connected to the bottom inner wall of the air inlet cylinder 417.

[0116] An air intake pipe is provided at the top of the air intake cylinder 417, and the air intake pipe is suitable for introducing compressed gas into the air intake cylinder 417 and squeezing the sealing portion 429, thereby driving the matching rod 418 to move, thereby driving the slider 48 and the cleaning plate 49 to move.

[0117] like Fig.15 As shown, an air inlet hole 420 is provided in the matching rod 418, and the portion where the cleaning plate 49 contacts the outer peripheral surface of the oil drain filter 46 is a contact surface 428, and below the contact surface 428 is an inclined guide surface 423, and the contact surface 428 is suitable for scraping off the oil drain filter 46 and accumulating it on the guide surface 423;

[0118] A horizontal air outlet hole 421 is provided on the contact surface 428, a downward inclined air outlet hole 422 is provided on the guide surface 423, the air inlet hole 420 passes through the matching rod 418 and the slider 48 to the cleaning plate 49, and is communicated with the horizontal air outlet hole 421 and the downward inclined air outlet hole 422. The horizontal air outlet hole 421 is suitable for clearing the mesh holes on the oil drain filter 46, and the downward inclined air outlet hole 422 is suitable for blowing off impurities on the oil drain filter 46.

[0119] like Figure 16-17 , Fig.12 As shown, a receiving plate 44 is provided at the bottom of the oil drain filter chamber 43, a receiving cavity is provided in the receiving plate 44, the receiving cavity is communicated with the space in the oil drain filter chamber 43, a plurality of slide seats 414 evenly distributed around the circumference are fixedly connected in the receiving cavity, a plurality of slide seats 414 are provided with slide grooves 430, a connecting seat 413 is slidably connected in the slide grooves 430, a second inclined plate 412 is connected to the top of the connecting seat 413, a first inclined plate 410 is connected to the bottom of the cleaning plate 49, a groove 431 is provided on the inner wall of the oil drain filter chamber 43, and the connecting seat 413 slides in the groove 430 and also slides in the groove 431;

[0120] A second telescopic rod 415 is provided in the slide slot 430, and the two ends of the second telescopic rod 415 are respectively connected to the inner wall of the slide slot 430 and the connecting seat 413, and a second spring 416 is sleeved on the outer portion of the second telescopic rod 415, and the two ends of the second spring 416 are respectively connected to the inner wall of the slide slot 430 and the connecting seat 413;

[0121] One end of the first inclined plate 410 close to the oil drain filter 46 is a blocking surface 424 perpendicular to the bottom surface of the cleaning plate 49, and the blocking surface 424 is suitable for limiting the position of impurities scraped off the surface of the oil drain filter 46 by the cleaning plate 49;

[0122] In the initial state, one end of the second inclined plate 412 close to the oil drain filter 46 abuts against the outer surface of the oil drain filter 46, and the upper surface of the connecting seat 413 abuts against the inner wall of the groove 431. The second inclined plate 412 and the connecting seat 413 are suitable for closing the channel connecting the oil drain filter chamber 43 and the internal space of the receiving plate 44 in the initial state;

[0123] The first inclined plate 410 is adapted to follow the movement of the cleaning plate 49, thereby squeezing the second inclined plate 412 and driving the second inclined plate 412 and the corresponding connecting seat 413 to move in the slide groove 430 in a direction away from the oil drain filter 46, so that the inner space of the oil drain filter chamber 43 and the receiving plate 44 are connected, the blocking surface 424 and the cleaning plate 49 are located directly above the receiving cavity, and the impurities accumulated on the cleaning plate 49 and the blocking surface 424 fall into the receiving cavity;

[0124] A second disassembly plate 411 is detachably provided at the bottom of the storage plate 44 , and the second disassembly plate 411 is communicated with the interior of the storage cavity.

[0125] like Fig.11 , Fig.13 As shown, a magnetic cone barrel 45 is provided in the oil drain upper shell 41, and the magnetic cone barrel 45 is suitable for adsorbing some metal substances in the oil entering the oil drain upper shell 41;

[0126] A mounting seat 427 is provided in the oil drain filter chamber 43, and a plurality of mounting grooves are opened in the mounting seat 427. The bottom of the oil drain filter 46 is inserted into the mounting groove. A lifting cover 426 is detachably provided on the top of the oil drain filter chamber 43. The top of the oil drain filter 46 is connected to the lifting cover 426. A plurality of auxiliary filters 425 arranged at intervals are provided on the bottom of the lifting cover 426. The bottoms of the auxiliary filters 425 are all inserted into the corresponding mounting grooves. The lifting cover 426 is suitable for driving the auxiliary filter 425 and the oil drain filter 46 to be pulled out into the interior of the oil drain filter chamber 43 after being disconnected from the oil drain filter chamber 43.

[0127] The working principle of this embodiment is as follows:

[0128] When the oil is drained, the oil in the static pressure turntable body 2 enters the oil drain filter component 4 through the oil drain pipe, and first enters the oil drain upper shell 41. A magnetic cone barrel 45 is arranged in the oil drain upper shell 41. The magnetic cone barrel 45 is conical and made of magnetic material. It absorbs some metal substances in the old oil entering, and plays a pre-filtering effect.

[0129] The pre-filtered oil enters the oil drain filter chamber 43 through the interior of the connecting plate 42. The oil drain filter chamber 43 is provided with an oil drain filter screen 46. The oil enters the inner surface of the oil drain filter screen 46 from the outer surface of the oil drain filter screen 46 to achieve a filtering effect. The oil filtered by the oil drain filter screen 46 finally leaves the interior of the oil drain filter component 4 from the bottom of the oil drain filter chamber 43.

[0130] After long-term use, a large amount of impurities will be attached to the surface of the oil drain filter 46. Since the oil filtered by the oil drain filter 46 is the old oil used by the static pressure turntable body 2, there are many impurities, the workload is large, and it is easy to be blocked by the attached impurities. Therefore, a longitudinal moving component is provided to drive the cleaning plate 49 to move longitudinally on the surface of the oil drain filter 46, and remove the large amount of impurities attached to the surface of the oil drain filter 46 by scraping;

[0131] When the oil drain filter 46 needs to be self-cleaned, compressed gas is introduced into the air inlet cylinder 417 through an external device. A matching rod 418 is provided in the air inlet cylinder 417. A sealing portion 429 is provided on the top of the matching rod 418. The sealing portion 429 fits against the inner wall of the air inlet cylinder 417 to play a sealing role. When the compressed gas enters the air inlet cylinder 417, it squeezes the sealing portion 429, thereby pushing the matching rod 418 to move downward, and when moving downward, it drives the slider 48 connected to it to move in the slide rail 47. The slide rail 47 is arranged inside the oil drain filter chamber 43, and a limited block is arranged between the slider 48 and the slide rail 47 to improve the stability of movement. The slider 48 is connected to the cleaning plate 49, and the cleaning plate 49 is driven by the slider 48 to realize longitudinal movement and clean the outer surface of the oil drain filter 46. It should be noted that the matching rod 418 needs to move longitudinally in the air intake cylinder 417 and the oil drain filter chamber 43, so a sealing setting is required to prevent excessive oil from entering the air intake cylinder 417 and affecting the self-cleaning work;

[0132] A first inclined plate 410 is provided at the bottom of the cleaning plate 49. One end of the first inclined plate 410 close to the oil drain filter 46 is a blocking surface 424. The blocking surface 424 and the cleaning plate 49 form an angle of 90 degrees. The portion of the cleaning plate 49 that contacts the outer surface of the oil drain filter 46 is a contact surface 428. The bottom of the contact surface 428 is an inclined guide surface 423. When the cleaning plate 49 moves, the contact surface 428 scrapes off the impurities on the oil drain filter 46. As the impurities continue to accumulate, they move along the guide surface 423 and eventually accumulate on the blocking surface 424. The blocking surface 424 is used to limit the position of the scraped impurities. Some impurities that fail to accumulate on the blocking surface 424 but fall will fall onto the second inclined plate 412 under the restriction of the blocking surface 424.

[0133] During this process, the air intake cylinder 417 is always in an air intake state, and the matching rod 418 is provided with an air intake hole 420, which is suitable for providing a small portion of compressed gas entering the air intake cylinder 417 to pass through the sealing portion 429 and enter the space in the matching rod 418. After entering the matching rod 418, the gas passes into the slider 48 and the cleaning plate 49, and is finally discharged through the horizontal air outlet hole 421 on the contact surface 428 of the slider 48 and the downward inclined air outlet hole 422 on the guide surface 423. The horizontal air outlet hole 421 can discharge the gas and pass through the filter holes on the oil drain filter 46 to play a role in dredging. The outlet position of the downward inclined air outlet hole 422 faces the outer surface of the oil drain filter 46, which can assist the cleaning plate 49 to stably scrape off all impurities attached to the surface of the oil drain filter 46.

[0134] The above steps are all self-cleaning work, including dredging the exhaust filter and scraping off the surface impurities. However, the scraped impurities are still in the oil discharge filter chamber 43, and the cleaned impurities cannot be completely separated from the subsequent oil, resulting in more and more impurities piling up, and also unable to achieve a good filtering effect;

[0135] Therefore, when the cleaning plate 49 moves downward, it will drive the first inclined plate 410 connected to its bottom to move synchronously. When the cleaning plate 49 has scraped and cleaned the surface of the oil drain filter 46, the first inclined plate 410 will squeeze the second inclined plate 412. The contact surfaces of the first inclined plate 410 and the second inclined plate 412 are both inclined. The second inclined plate 412, which was squeezed by the first inclined plate 410 from above, should move downward, but it cannot move downward due to the setting of the fixed slide 414. However, a slide groove 430 is provided on the slide 414, and the connecting seat 413 connected to the bottom of the second inclined plate 412 is slidably set in the slide groove 430, and the connecting seat 413 is connected with the telescopic rod 2 415 and the spring 2 416 in the slide groove 430. Therefore, when the second inclined plate 412 is squeezed by the first inclined plate 410, the connecting seat 413 will move horizontally in the sliding groove 430, so as to achieve the effect of horizontal movement of the second inclined plate 412 and the connecting seat 413 together. The first inclined plate 410 is a complete annular arrangement, and the second inclined plates 412 are in the form of a plurality of evenly distributed circumferences. Each second inclined plate 412 is connected to a corresponding connecting seat 413. The sliding groove 430 provided on the sliding seat 414 corresponds to each connecting seat 413 individually. When the plurality of second inclined plates 412 are not squeezed by the first inclined plate 410, they are in the initial state. One end of the second inclined plate 412 close to the oil drain filter 46 abuts against the oil drain filter 46 to form a seal. The corresponding connecting seat 413 The end away from the oil drain filter 46 abuts against the inner wall of the groove 431 in the oil drain filter 46 to form a seal, and the second inclined plates 412 and the corresponding connecting seats 413 abut against each other on both sides to form a seal. The whole is a complete disc in the initial state, and the channel connecting the oil drain filter chamber 43 and the receiving plate 44 is blocked. When the oil drain filter 46 needs to filter the oil, the oil will not penetrate into the receiving plate 44. When it is in the self-cleaning mode, there is no oil in the oil drain filter chamber 43, and the cleaning plate 49 cleans the oil drain filter 46. When the first inclined plate 410 is driven to move downward, the first inclined plate 410 squeezes all the second inclined plates 412, so that all the second inclined plates 412 and the corresponding connecting seats 413 slide in the corresponding The cleaning plate 49 moves in the groove 430 to form a circular outward expansion. At this time, the channel between the receiving plate 44 and the oil discharge filter chamber 43 is opened, and the blocking surface 424 of the first inclined plate 410 and the guide surface 423 of the cleaning plate 49 are both located above the opened channel. At this time, part of the scraped impurities fall into the receiving plate 44 due to their own weight, and part of the impurities that have not fallen will be blown into the receiving plate 44 under the blowing of the lower inclined air outlet 422. In addition, the impurities that have fallen onto the second inclined plate 412 along the guide surface 423 and the blocking surface 424 during the movement and scraping of the cleaning plate 49 will fall into the receiving plate 44 along the inclined part of the second inclined plate 412 when the first inclined plate 410 squeezes the second inclined plate 412.The overall effect is that most of the impurities scraped off the oil drain filter 46 enter the receiving plate 44, so that when the cleaning plate 49 moves upward and resets, the communicating channel can be closed again to completely separate the impurities from the oil drain filter chamber 43, and will not cause pollution to the subsequent filtering of old oil. The reset of the cleaning plate 49 only requires the air intake cylinder 417 to stop the air intake and cooperate with the contraction spring 419 to reset the matching rod 418. When the cleaning process is completed, the operator can regularly open the second disassembly plate 411 to uniformly deal with the impurities accumulated in the receiving plate 44;

[0136] In addition, a plurality of auxiliary filters 425 of different precisions arranged at intervals can be set in the oil drain filter chamber 43. The auxiliary filters 425 are all located inside the oil drain filter 46 and are plugged into the mounting seat 427 in the oil drain filter chamber 43. At the same time, the tops of all the auxiliary filters 425 and the oil drain filter 46 are connected to the lifting cover 426. The lifting cover 426 and the top of the oil drain filter chamber 43 are connected by bolts and sealed. When all the filters need to be cleaned after a long period of work, all the filters can be removed by pulling out the lifting cover 426, which is convenient to operate.

[0137] Embodiment 3

[0138] like Figure 18-19 As shown, this embodiment further includes the following structures on the basis of the first embodiment: a mixing assembly 5 is arranged in the oil tank 14, and the mixing assembly 5 includes an old oil storage tank 51, a new oil storage tank 52, a pre-mixing chamber 53, a delivery chamber 54 and a main storage tank 55;

[0139] The oil inlet end of the old oil storage tank 51 is connected to the oil outlet pipe 13, and the oil outlet ends of the old oil storage tank 51 and the new oil storage tank 52 are both connected to the premixing chamber 53. The opening size of the oil outlet end of the new oil storage tank 52 is twice that of the oil outlet end of the old oil storage tank 51.

[0140] The old oil storage tank 51 is located at one side of the premixing chamber 53, and the new oil storage tank 52 is located at the top of the premixing chamber 53. A power impeller 56 is rotatably installed in the premixing chamber 53, and a rotary motor is installed outside the premixing chamber 53. The rotary motor is connected to the power impeller 56 to drive the power impeller 56 to rotate in the premixing chamber 53.

[0141] The premixing chamber 53 is connected to the conveying chamber 54. A control motor 57 is installed outside the conveying chamber 54. A stirring rod 58 is rotatably installed in the conveying chamber 54. The control motor 57 is connected to the stirring rod 58 to drive the stirring rod 58 to rotate in the conveying chamber 54. The axis directions of the power impeller 56 and the stirring rod 58 are perpendicular to each other.

[0142] The delivery chamber 54 is connected to a main reservoir tank 55 , and the main reservoir tank 55 is connected to the oil pump 11 .

[0143] The working principle of this embodiment is as follows:

[0144] All the old oil discharged from the hydrostatic turntable body 2 after being processed by the oil discharge filter component 4 is collected in the old oil storage tank 51, while the unused new oil is in the new oil storage tank 52. The outlets of the old oil storage tank 51 and the new oil storage tank 52 are both connected to the pre-mixing chamber 53. Both outlets are provided with electric control valves to achieve unified oil discharge and mixing. When the new oil and the old oil that have not been fully mixed are respectively input into the hydrostatic turntable body 2 due to the difference in quality and other issues, the oil film will be uneven and stratified, thereby affecting the normal operation of the hydrostatic turntable body 2;

[0145] It should be noted that the outlet size of the new oil storage tank 52 is twice the size of the oil outlet of the old oil storage tank 51, so when the oil is discharged into the premixing chamber 53 at the same time, the ratio of the old oil to the new oil can be 1:2. At this ratio, the oil film generated by mixing is more stable.

[0146] A power impeller 56 driven to rotate by a rotary motor is arranged in the premixing chamber 53. Driven by the rotary motor, the power impeller 56 mixes the new oil and the old oil entering in the premixing chamber 53. Preferably, the power impeller 56 rotates counterclockwise. Since the outlet of the new oil storage tank 52 is arranged at the top of the premixing chamber 53, the power impeller 56 rotating counterclockwise can stir the old oil entering the premixing chamber 53 horizontally from below, but will not affect the flow of the new oil, so as to provide the effect of the old oil being mixed into the new oil.

[0147] The mixed oil treated in the oil pre-mixing chamber 53 enters the interior of the conveying chamber 54, where it is stirred by the stirring rod 58 driven by the control motor 57 to rotate for further mixing. It should be noted that the stirring rod 58 is arranged perpendicular to the rotation axis direction of the power impeller 56, so that the two mixed stirrings are different in direction, making the mixing more comprehensive. Finally, the mixed oil enters the main storage tank 55 from the conveying chamber 54 for storage, and is pumped out by the oil pump 11 and sent into the oil inlet pipe 12 until it enters the hydrostatic turntable body 2 to form an oil film.

[0148] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A static pressure turntable device, characterized in that: include: Static pressure turntable body (2); An oil supply assembly (1), the oil supply assembly (1) comprising an oil pump (11), an oil tank (14), an oil inlet pipe (12) and an oil outlet pipe (13); The oil pump (11) is suitable for introducing the oil in the oil tank (14) into the static pressure turntable body (2) through the oil inlet pipe (12), thereby forming a supporting oil film; The oil outlet pipe (13) is suitable for discharging the oil in the static pressure turntable body (2); Two groups of oil inlet filter components (3), both of which are connected to the oil inlet pipe (12), and the oil inlet filter components (3) are suitable for filtering the oil entering the static pressure turntable body (2); The oil inlet filter component (3) is provided with a driving assembly and an oil inlet filter screen (36), wherein the driving assembly is connected to the oil inlet filter screen (36) so as to drive the oil inlet filter screen (36) to rotate, thereby generating centrifugal force to separate impurities attached to the oil inlet filter screen (36); Two groups of oil discharge filter components (4), both of which are connected to the oil outlet pipe (13), and the oil discharge filter components (4) are suitable for filtering the oil discharged from the static pressure turntable body (2); The oil drain filter component (4) is provided with a scraping component and an oil drain filter screen (46), the scraping component comprising a longitudinal moving component and a cleaning plate (49), one end of the cleaning plate (49) abuts against the outer surface of the oil drain filter screen (46), the longitudinal moving component is connected to the cleaning plate (49) so as to drive the cleaning plate (49) to move longitudinally on the oil drain filter screen (46), thereby scraping off impurities attached to the oil drain filter screen (46).

2. The static pressure turntable device according to claim 1, characterized in that: The oil inlet filter component (3) is divided into an oil inlet upper shell (31), an oil inlet filter chamber (32) and an oil inlet lower shell (33) which are connected in sequence; The oil inlet upper shell (31) is provided with a cavity, a baffle plate (34) is arranged in the cavity, the baffle plate (34) divides the cavity into an installation chamber and an oil inlet, the oil inlet filter chamber (32) is provided with an oil inlet filter chamber (313), the oil inlet filter screen (36) is rotatably installed in the oil inlet filter chamber (313), the oil inlet filter chamber (313) is communicated with the oil inlet, and the oil inlet lower shell (33) is provided with an oil outlet, the oil outlet is communicated with the oil inlet filter chamber (313); The oil inlet is suitable for introducing oil into the oil inlet filter cavity (313) and is placed outside the oil inlet filter screen (36), and the oil enters the oil inlet filter screen (36) and flows out through the oil outlet; The driving component is a driving motor (35), and the driving motor (35) is installed on the installation chamber. The output shaft of the driving motor (35) is connected to the top of the oil inlet filter (36) so as to drive the oil inlet filter (36) to rotate in the oil inlet filter chamber (313).

3. The static pressure turntable device according to claim 2, characterized in that: The oil inlet filter component (3) further comprises a linear moving assembly and a separation cylinder (312); a sliding groove is provided in the oil inlet lower shell (33); the linear moving assembly is suitable for being connected to the separation cylinder (312), thereby driving the separation cylinder (312) to move in the oil inlet filter cavity (313) and the sliding groove; When the separation cylinder (312) is located in the oil inlet filter chamber (313), the oil inlet filter chamber (313) is divided into an inner chamber and an outer chamber, the oil inlet is in communication with the inner chamber, and the oil inlet is suitable for introducing oil into the inner chamber and contacting with the oil inlet filter screen (36); When the separation cylinder (312) is located in the sliding groove, the oil inlet filter (36) is driven to rotate, thereby separating impurities attached to the surface of the oil inlet filter (36) into the outer cavity; The oil inlet filter chamber (32) is detachably provided with a first disassembly plate (321), and the first disassembly plate (321) is communicated with the outer cavity.

4. The static pressure turntable device according to claim 3, characterized in that: The linear motion assembly is located in the installation chamber, and the linear motion assembly comprises a connecting rod (38), a reciprocating screw rod (39), a one-way bearing (310) and a transmission sleeve (311); A synchronous belt (37) is sleeved between the connecting rod (38) and the output shaft of the driving motor (35) via a synchronous wheel, the connecting rod (38) and the reciprocating screw rod (39) are connected via the one-way bearing (310), and the reciprocating screw rod (39) passes through the installation chamber, the oil inlet filter chamber (313) and the sliding groove, and is rotatably installed in the sliding groove; At least one transmission sleeve (311) is mounted on the outside of the reciprocating screw rod (39), the transmission sleeve (311) is connected to the separation cylinder (312), and the reciprocating screw rod (39) is suitable for being driven to rotate and thereby drive the transmission sleeve (311) to move in the axial direction of the reciprocating screw rod (39), thereby driving the separation cylinder (312) to move; A guide rod (314) is also connected to the sliding groove, and the transmission sleeve (311) slides on the outer peripheral surface of the guide rod (314) when moving.

5. The static pressure turntable device according to claim 1 or 4, characterized in that: A rotating groove (315) is provided on the inner wall of the oil inlet filter (36), an adjusting filter (316) is rotatably arranged in the rotating groove (315), the outer peripheral surface of the adjusting filter (316) abuts against the inner wall of the oil inlet filter (36), the oil inlet filter (36) and the adjusting filter (316) are both provided with a plurality of transverse grooves penetrating through the oil inlet filter (36) and the transverse grooves on the adjusting filter (316) are interlaced to form oil holes, and the oil holes formed when the adjusting filter (316) is in the initial position are circular holes; A fixing plate 1 (317) is arranged on the top wall of the oil inlet filter (36), and two symmetrically arranged fixing plates 2 (318) are arranged on the top of the regulating filter (316), and the fixing plate 1 (317) is located in the middle of the two fixing plates 2 (318); The two fixing plates 2 (318) are connected to the fixing plate 1 (317) via a retracting mechanism, the retracting mechanism comprising a telescopic rod 1 (319) and a spring 1 (320), the two ends of the telescopic rod 1 (319) are respectively connected to the fixing plate 1 (317) and the fixing plate 2 (318), the spring 1 (320) is sleeved on the outside of the telescopic rod 1 (319), and the two ends of the spring 1 (320) are respectively connected to the fixing plate 1 (317) and the fixing plate 2 (318); The contraction mechanism is suitable for cooperating with the adjustment filter (316) to produce an angular deviation in the rotating groove (315), and the adjustment filter (316) is suitable for producing an angular deviation under the squeeze of the oil passing through the oil hole, thereby changing the size of the oil hole.

6. The static pressure turntable device according to claim 1, characterized in that: The oil drain filter component (4) is divided into an oil drain upper shell (41), a connecting plate (42) and an oil drain filter chamber (43) which are connected in sequence, the oil drain filter net (46) is installed in the oil drain filter chamber (43), and the internal spaces of the oil drain upper shell (41), the connecting plate (42) and the oil drain filter chamber (43) are interconnected; The longitudinal moving assembly comprises a slide rail (47), a slider (48), an air inlet cylinder (417) and a matching rod (418); the slide rail (47) is connected to the inner wall of the oil drain filter chamber (43); the slider (48) is slidably connected to the inside of the slide rail (47); the slider (48) is connected to the cleaning plate (49); a limit block is connected to the slider (48); a limit groove is provided in the slide rail (47); the limit block follows the slider (48) to slide in the limit groove; the air inlet cylinder (417) is connected to the outside of the oil drain filter chamber (43); the matching rod (418) is connected to the outside of the oil drain filter chamber (43); The rod (418) is slidably arranged in the air intake cylinder (417), the bottom of the matching rod (418) extends into the slide rail (47) and is connected to the slider (48), the top of the matching rod (418) is provided with a sealing portion (429), the sealing portion (429) is in contact with the inner wall of the air intake cylinder (417), the outer portion of the matching rod (418) is sleeved with a contraction spring (419), one end of the contraction spring (419) is connected to the bottom of the sealing portion (429), and the other end of the contraction spring (419) is connected to the bottom inner wall of the air intake cylinder (417); An air intake pipe is provided at the top of the air intake cylinder (417), and the air intake pipe is suitable for introducing compressed gas into the air intake cylinder (417) and squeezing the sealing portion (429), thereby driving the matching rod (418) to move, thereby driving the slider (48) and the cleaning plate (49) to move.

7. The static pressure turntable device according to claim 6, characterized in that: An air inlet hole (420) is provided in the matching rod (418); a portion of the cleaning plate (49) that contacts the outer peripheral surface of the oil drain filter (46) is a contact surface (428); below the contact surface (428) is an inclined guide surface (423); the contact surface (428) is suitable for scraping off the oil drain filter (46) and depositing it on the guide surface (423); The contact surface (428) is provided with a horizontal air outlet hole (421), the guide surface (423) is provided with a downwardly inclined air outlet hole (422), the air inlet hole (420) passes through the matching rod (418) and the slider (48) to the cleaning plate (49), and is communicated with the horizontal air outlet hole (421) and the downwardly inclined air outlet hole (422), the horizontal air outlet hole (421) is suitable for clearing the mesh on the oil drain filter (46), and the downwardly inclined air outlet hole (422) is suitable for blowing off impurities on the oil drain filter (46).

8. The static pressure turntable device according to claim 6 or 7, characterized in that: A receiving plate (44) is provided at the bottom of the oil drain filter chamber (43), a receiving cavity is provided in the receiving plate (44), the receiving cavity is communicated with the space in the oil drain filter chamber (43), a plurality of sliding seats (414) evenly distributed around the circumference are fixedly connected in the receiving cavity, a plurality of sliding seats (414) are provided with sliding grooves (430), a connecting seat (413) is slidably connected in the sliding grooves (430), a second inclined plate (412) is connected to the top of the connecting seat (413), a first inclined plate (410) is connected to the bottom of the cleaning plate (49), a groove (431) is provided on the inner wall of the oil drain filter chamber (43), and the connecting seat (413) slides in the sliding grooves (430) and also slides in the grooves (431); A second telescopic rod (415) is arranged in the slide groove (430), and the two ends of the second telescopic rod (415) are respectively connected to the inner wall of the slide groove (430) and the connecting seat (413); a second spring (416) is sleeved on the outside of the second telescopic rod (415), and the two ends of the second spring (416) are respectively connected to the inner wall of the slide groove (430) and the connecting seat (413); One end of the first inclined plate (410) close to the oil drain filter (46) is a blocking surface (424) perpendicular to the bottom surface of the cleaning plate (49), and the blocking surface (424) is suitable for limiting the position of impurities scraped off the surface of the oil drain filter (46) by the cleaning plate (49); In an initial state, one end of the second inclined plate (412) close to the oil drain filter (46) abuts against the outer surface of the oil drain filter (46), and the upper surface of the connecting seat (413) abuts against the inner wall of the groove (431). In an initial state, the second inclined plate (412) and the connecting seat (413) are suitable for closing a passage connecting the oil drain filter chamber (43) and the internal space of the receiving plate (44); The first inclined plate (410) is adapted to follow the movement of the cleaning plate (49), thereby squeezing the second inclined plate (412) and driving the second inclined plate (412) and the corresponding connecting seat (413) to move in the slide groove (430) in a direction away from the oil drain filter (46), so that the inner space of the oil drain filter chamber (43) and the receiving plate (44) are communicated, the blocking surface (424) and the cleaning plate (49) are located directly above the receiving cavity, and impurities accumulated on the cleaning plate (49) and the blocking surface (424) fall into the receiving cavity; A second disassembly plate (411) is detachably provided at the bottom of the storage plate (44), and the second disassembly plate (411) is communicated with the interior of the storage cavity.

9. The static pressure turntable device according to claim 8, characterized in that: A magnetic cone barrel (45) is arranged in the oil drain upper shell (41), and the magnetic cone barrel (45) is suitable for adsorbing some metal substances in the oil entering the oil drain upper shell (41); The oil drain filter chamber (43) is provided with a mounting seat (427), and a plurality of mounting grooves are provided in the mounting seat (427). The bottom of the oil drain filter (46) is inserted into the mounting groove. The top of the oil drain filter chamber (43) is detachably provided with a lifting cover (426). The top of the oil drain filter (46) is connected to the lifting cover (426). The bottom of the lifting cover (426) is provided with a plurality of auxiliary filters (425) arranged at intervals. The bottoms of the auxiliary filters (425) are all inserted into the corresponding mounting grooves. The lifting cover (426) is suitable for driving the auxiliary filter (425) and the oil drain filter (46) to be pulled out into the interior of the oil drain filter chamber (43) after being disconnected from the oil drain filter chamber (43).

10. The static pressure turntable device according to claim 1, characterized in that: A mixing assembly (5) is arranged in the oil tank (14), and the mixing assembly (5) comprises a used oil storage tank (51), a new oil storage tank (52), a pre-mixing chamber (53), a conveying chamber (54) and a main storage tank (55); The oil inlet end of the old oil storage tank (51) is connected to the oil outlet pipe (13), the oil outlet end of the old oil storage tank (51) and the oil outlet end of the new oil storage tank (52) are both connected to the premixing chamber (53), and the opening size of the oil outlet end of the new oil storage tank (52) is twice that of the oil outlet end of the old oil storage tank (51); The old oil storage tank (51) is located at one side of the premixing chamber (53), and the new oil storage tank (52) is located at the top of the premixing chamber (53). A power impeller (56) is rotatably installed in the premixing chamber (53). A rotating motor is installed outside the premixing chamber (53), and the rotating motor is connected to the power impeller (56) so as to drive the power impeller (56) to rotate in the premixing chamber (53). The premixing chamber (53) is connected to the conveying chamber (54); a control motor (57) is installed outside the conveying chamber (54); a stirring rod (58) is rotatably installed in the conveying chamber (54); the control motor (57) is connected to the stirring rod (58) to drive the stirring rod (58) to rotate in the conveying chamber (54); and the axial directions of the power impeller (56) and the stirring rod (58) are perpendicular to each other; The delivery chamber (54) is connected to the main storage tank (55), and the main storage tank (55) is connected to the oil pump (11).

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