Improved filtering mechanism for hydraulic oil in hydraulic control device oil circuit and its hydraulic control system

Abstract

The invention discloses a filtering improvement mechanism for hydraulic oil in the oil circuit of a hydraulic control device and a hydraulic control system thereof, and relates to the technical field of automobile brakes. The filtering improvement mechanism for hydraulic oil in the oil circuit of a hydraulic control device comprises a hydraulic oil storage tank, a master brake cylinder, a brake slave cylinder and a wheel brake, wherein the hydraulic oil storage tank, the master brake cylinder, the brake slave cylinder and the wheel brake are connected by a hydraulic oil pipe, and a hydraulic oil filter is provided on the hydraulic oil pipe, and the hydraulic oil filter comprises a driving housing and a filter element housing fixedly connected to the hydraulic oil pipe. The filtering improvement mechanism for hydraulic oil in the oil circuit of a hydraulic control device improves the filtering position in a traditional hydraulic control device, and adds a hydraulic oil filter to avoid the accumulation of impurities and clogging of the arc filter element body, thereby ensuring good performance of the hydraulic brake system, constant hydraulic oil pressure, and reducing the maintenance frequency of the arc filter element body.

Description

Technical Field

[0001] The invention relates to the technical field of automobile braking, in particular to a filtering improvement mechanism for hydraulic oil in an oil circuit of a hydraulic control device and a hydraulic control system thereof. Background Art

[0002] The hydraulic control device is a device based on hydraulic technology that realizes specific functions by controlling the flow and pressure of liquid. The vehicle hydraulic brake control device is an important part of the automobile braking system. The vehicle hydraulic brake control device is usually composed of brake pedal, vacuum booster pump, brake master cylinder, brake fluid, brake oil pipe, ABS pump assembly, brake cylinder and wheel brakes. These components work together to ensure that the vehicle can safely slow down or stop when needed.

[0003] In the prior art, a filtering device needs to be designed in the pipeline of the hydraulic control device to prevent impurities in the hydraulic oil circuit from circulating and affecting the pressure pump equipment. The filtering device is usually composed of a shell and a filter element. A cylindrical fixed filter element is arranged inside the shell. In the hydraulic control device based on off-road or racing strength, the traditional filtering device usually cannot meet the high-intensity braking requirements. After repeated use, impurities are easily accumulated inside the filter element. As the degree of impurity accumulation increases, the resistance in the hydraulic oil pipeline will gradually increase, which will affect the braking effect of the hydraulic system. This also directly leads to a high frequency of filter element replacement, which is not convenient for the vehicle in subsequent use and maintenance. In view of the deficiencies in the prior art, the present invention provides a filtering improvement mechanism for the hydraulic oil in the oil circuit of a hydraulic control device and a hydraulic control system thereof to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an improved filtering mechanism for the hydraulic oil in the oil circuit of a hydraulic control device and a hydraulic control system thereof, improves the filtering position in the traditional hydraulic control device, adds a hydraulic oil filter, and designs an arc-shaped filter element body inside the hydraulic oil filter with an arc-shaped contact surface, and cooperates with the design of a cleaning unit so that the cleaning scraper in the hydraulic oil pipeline is automatically driven to rotate to always keep the cleaning effect on the arc-shaped filter element body, avoiding the accumulation and blockage of impurities in the arc-shaped filter element body, ensuring good performance of the hydraulic brake system, constant hydraulic oil pressure, and reducing the maintenance frequency of the arc-shaped filter element body. At the same time, through the coordinated design of the absorption unit and the cleaning unit, the absorption unit can timely absorb the impurities removed by the cleaning unit on the arc-shaped filter element body, avoiding the repeated activity of impurities on the arc-shaped filter element body, improving the effect of the cleaning unit, and meeting the high-intensity braking requirements of off-road or racing cars.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a filtering improvement mechanism for hydraulic oil in the oil circuit of a hydraulic control device, comprising a hydraulic oil storage tank, a master brake cylinder, a brake wheel cylinder and a wheel brake, wherein the hydraulic oil storage tank, the master brake cylinder, the brake wheel cylinder and the wheel brake are connected through a hydraulic oil pipe, and a hydraulic oil filter is provided on the hydraulic oil pipe;

[0006] The hydraulic oil filter comprises a driving housing and a filter element housing fixedly connected to the hydraulic oil pipe, the interior of the filter element housing is provided with a filter element holder and an arc-shaped filter element body movably connected to the interior of the filter element holder, and the interiors of the driving housing and the filter element housing are provided with a cleaning unit for automatically cleaning the arc-shaped filter element body;

[0007] The cleaning unit comprises a turbine rotatably connected to the inside of the driving housing and a cleaning scraper rotatably connected to the inside of the filter element housing, and a main shaft is provided between the turbine and the cleaning scraper;

[0008] An absorption unit for absorbing impurities is arranged inside the filter element housing. The absorption unit comprises an arc-shaped positioning seat movably clamped inside the filter element housing and an electrostatic adsorption plate arranged on the arc-shaped positioning seat.

[0009] Preferably, an impurity adsorption seat is provided inside the filter element housing, the arc-shaped positioning seat is movably clamped in the impurity adsorption seat, and an oil groove and a collection bin for supporting the electrostatic adsorption plate are provided on the arc-shaped positioning seat.

[0010] Preferably, the arc-shaped positioning seat and the arc-shaped filter element body are both fixedly connected with a mounting block, the top of the filter element housing is provided with a mounting docking seat, the mounting block is movably clamped in the mounting docking seat, and the mounting docking seat is provided with a clamping unit for limiting the mounting block.

[0011] Preferably, the clamping unit includes a guide rail seat fixedly connected to the mounting docking seat and a screw rod threadedly connected to the guide rail seat, a wedge block is rotatably connected to the screw rod, a locking groove is provided on the mounting block, and the wedge block is movably clamped in the locking groove.

[0012] Preferably, a limiting platform is provided on the wedge block, a sliding groove is provided on the guide rail seat, and the limiting platform is slidably connected in the sliding groove.

[0013] Preferably, a guide plate is provided inside the driving housing.

[0014] Preferably, a lubrication unit for providing lubrication to the main shaft is provided between the drive housing and the filter element housing, the lubrication unit includes a shaft seat provided between the drive housing and the filter element housing and a rotating shaft provided inside the shaft seat, the rotating shaft and the main shaft are integrally formed, a sleeve is fixedly connected to the side of the shaft seat, and a lubrication nozzle is provided inside the sleeve.

[0015] Preferably, a transmission wheel is rotatably connected inside the sleeve, and the transmission wheel is in contact with the main shaft;

[0016] The driving housing is provided with a reinforcement bracket, the reinforcement bracket is provided with a lubricating oil tank, the lubricating nozzle is arranged on the lubricating oil tank, a lubricating wheel is rotatably connected inside the lubricating nozzle, and the lubricating wheel is fitted with the transmission wheel.

[0017] Preferably, a clamping assembly is provided on the reinforcement bracket, and the clamping assembly includes a sliding block arranged at the bottom of the lubricating oil tank and a baffle fixedly connected to the bottom of the reinforcement bracket, and a spring is fixedly connected between the baffle and the sliding block.

[0018] A second aspect of the present invention provides a hydraulic control system, comprising a filtering improvement mechanism for hydraulic oil in the oil circuit of the hydraulic control device.

[0019] The present invention discloses a filtering improvement mechanism for hydraulic oil in an oil circuit of a hydraulic control device and a hydraulic control system thereof, which have the following beneficial effects:

[0020] 1. The improved filtering mechanism of the hydraulic oil in the oil circuit of the hydraulic control device improves the filtering position in the traditional hydraulic control device, adds a hydraulic oil filter, and designs the arc-shaped filter element body inside the hydraulic oil filter with an arc-shaped contact surface. With the design of the cleaning unit, the cleaning scraper is automatically driven to rotate in the hydraulic oil pipeline to keep the cleaning effect on the arc-shaped filter element body at all times, avoiding the accumulation and blockage of impurities in the arc-shaped filter element body, ensuring the good performance of the hydraulic brake system, constant hydraulic oil pressure, and reducing the maintenance frequency of the arc-shaped filter element body. At the same time, through the coordinated design of the absorption unit and the cleaning unit, the absorption unit can absorb the impurities removed by the cleaning unit on the arc-shaped filter element body in time, avoiding the repeated activity of impurities on the arc-shaped filter element body, improving the effect of the cleaning unit, and meeting the high-intensity braking requirements of off-road or racing.

[0021] 2. The hydraulic control device has an improved filtering mechanism for the hydraulic oil in the oil circuit. The cleaning scraper in the cleaning unit is driven by the fluid power of the hydraulic oil itself, and no external energy is required. The operation is stable. Every time the hydraulic oil moves inside the hydraulic oil pipe, the cleaning action of the cleaning unit is driven once.

[0022] 3. The improved filtering mechanism of the hydraulic oil in the oil circuit of the hydraulic control device realizes the support and limitation of the arc-shaped locating seat and the arc-shaped filter element body as a whole through the mounting block. The design of the mounting docking seat and the clamping unit makes it easy to disassemble and assemble the mounting block, so the arc-shaped locating seat and the arc-shaped filter element body are also easy to disassemble and assemble, thereby ensuring that the arc-shaped locating seat and the arc-shaped filter element body are easy to clean and maintain. When the arc-shaped locating seat and the arc-shaped filter element body fail, it is also convenient to replace the arc-shaped locating seat and the arc-shaped filter element body in time, thereby ensuring the convenient maintenance of the hydraulic control device.

[0023] 4. The hydraulic oil filtering improvement mechanism of the hydraulic control device oil circuit, through the design of the lubrication unit, enables the hydraulic oil to provide lubrication to the rotating support position when driving the turbine, cleaning scraper and main shaft to rotate as a whole, thereby reducing resistance and reducing cleaning unit wear, thereby ensuring good operating stability of the cleaning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the hydraulic oil filter of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the drive housing of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the cleaning unit of the present invention;

[0029] Figure 5 This is a disassembly schematic diagram of the mounting block of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the absorption unit of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the clamping unit of the present invention;

[0032] Figure 8 This is a disassembly schematic diagram of the cleaning unit of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the lubricating oil tank of the present invention;

[0034] Fig.10It is a schematic structural diagram of the lubrication unit and the tightening assembly of the present invention.

[0035] In the figure: 1, hydraulic oil storage tank; 11, brake master cylinder; 12, brake slave cylinder; 13, wheel brake; 2, hydraulic oil pipe; 3, hydraulic oil filter; 31, drive housing; 311, guide plate; 32, filter element housing; 321, filter element holder; 322, arc filter element body; 323, impurity adsorption seat; 324, installation docking seat; 33, cleaning unit; 331, turbine; 332, cleaning scraper; 333, main shaft; 34, absorption unit; 341, arc positioning seat; 3 42. Oil tank; 343. Collecting bin; 344. Electrostatic adsorption plate; 35. Mounting block; 351. Locking groove; 36. Reinforcement bracket; 4. Lubrication unit; 41. Shaft seat; 42. Rotating shaft; 43. Sleeve seat; 44. Transfer wheel; 45. Lubricating oil tank; 46. Lubrication nozzle; 47. Lubrication wheel; 5. Clamping assembly; 51. Slider; 52. Baffle; 53. Spring; 6. Clamping unit; 61. Guide rail seat; 62. Screw; 63. Wedge block; 64. Limiting platform; 65. Slide groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The embodiments of the present application provide an improved filtering mechanism for the hydraulic oil in the oil circuit of a hydraulic control device and its hydraulic control system, thereby solving the problem that in the hydraulic control devices of the prior art based on off-road or racing strength, traditional filtering devices usually cannot meet high-intensity braking requirements, and impurities are easily accumulated inside the filter element after repeated use. As the degree of impurity accumulation increases, the resistance in the hydraulic oil pipeline will gradually increase, which will affect the braking effect of the hydraulic system, and also lead to a high frequency of filter element replacement, which is very inconvenient to use.

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The embodiment of the present invention discloses a filtering improvement mechanism for hydraulic oil in the oil circuit of a hydraulic control device. Figure 1 To Attachment Fig.10As shown, it includes a hydraulic oil storage tank 1, a brake master cylinder 11, a brake wheel cylinder 12 and a wheel brake 13, and the hydraulic oil storage tank 1, the brake master cylinder 11, the brake wheel cylinder 12 and the wheel brake 13 are connected through a hydraulic oil pipe 2, and a hydraulic oil filter 3 is provided on the hydraulic oil pipe 2;

[0040] The hydraulic oil storage tank 1 is used to store hydraulic oil and deliver the hydraulic oil to the master brake cylinder 11. The master brake cylinder 11 is one of the core components of the hydraulic brake device. When the driver steps on the brake pedal, the piston in the master brake cylinder 11 moves forward, compressing the brake fluid and generating pressure. This pressure is then transmitted to the brake cylinders 12 of each wheel through the hydraulic oil pipe 2. The brake cylinders 12 are located near the wheels and are connected to the wheel brakes 13. When the brake fluid is transmitted to the brake cylinders 12, it pushes the pistons in the brake cylinders 12 to move outward, thereby pushing the brake shoes or brake pads to contact the wheels and generating friction. This friction slows down the rotation speed of the wheels and achieves the braking effect. The wheel brake 13 is the final component that generates the braking force. It is usually composed of brake shoes, brake pads, brake drums or brake discs. When the brake cylinders 12 push the brake shoes or brake pads to contact the wheels, friction is generated and the rotation speed of the wheels is slowed down, thereby achieving the braking effect.

[0041] The hydraulic oil filter 3 includes a driving housing 31 and a filter element housing 32 fixedly connected to the hydraulic oil pipe 2. The filter element housing 32 is provided with a filter element holder 321 and an arc-shaped filter element body 322 movably connected to the filter element holder 321. The driving housing 31 and the filter element housing 32 are provided with a cleaning unit 33 for automatically cleaning the arc-shaped filter element body 322. The hydraulic oil filter 3 is used to filter the hydraulic oil in the hydraulic oil pipe 2, remove impurities, and ensure the normal operation of the hydraulic system.

[0042] The cleaning unit 33 includes a turbine 331 rotatably connected to the inside of the driving housing 31 and a cleaning scraper 332 rotatably connected to the inside of the filter housing 32, and a main shaft 333 is provided between the turbine 331 and the cleaning scraper 332; the device is designed so that the cleaning scraper 332 can clean the surface of the arc filter body 322 when rotating, thereby ensuring that the arc filter body 322 is in a smooth state, thereby ensuring good performance of the hydraulic brake system and constant hydraulic oil pressure;

[0043] An absorption unit 34 for absorbing impurities is provided inside the filter element housing 32. The absorption unit 34 includes an arc-shaped positioning seat 341 movably clamped inside the filter element housing 32 and an electrostatic adsorption plate 344 arranged on the arc-shaped positioning seat 341. Through the coordinated design of the absorption unit 34 and the cleaning unit 33, the absorption unit 34 can promptly absorb the impurities removed by the cleaning unit 33 on the arc-shaped filter element body 322, thereby avoiding the impurities from repeatedly moving on the arc-shaped filter element body 322 and improving the effect of the cleaning unit 33.

[0044] The filter improvement mechanism of the hydraulic oil in the oil circuit of the hydraulic control device is provided with a guide plate 311 inside the driving shell 31; the cleaning scraper 332 in the cleaning unit 33 is driven by the fluid power of the hydraulic oil itself, and no external energy is required, and the operation is stable. Every time the hydraulic oil moves inside the hydraulic oil pipe 2, the cleaning action of the cleaning unit 33 is driven once. When the hydraulic oil moves and enters the interior of the driving shell 31 through the hydraulic oil pipe 2, the hydraulic oil will drive the turbine 331 to rotate through the guiding effect of the guide plate 311, and the turbine 331 will drive the main shaft 333 to rotate, and the main shaft 333 will drive the cleaning scraper 332 to rotate, and the cleaning scraper 332 will then clean the arc filter element body 322.

[0045] An impurity adsorption seat 323 is provided inside the filter element housing 32, and an arc-shaped positioning seat 341 is movably connected in the impurity adsorption seat 323. An oil groove 342 and a collecting bin 343 for supporting an electrostatic adsorption plate 344 are provided on the arc-shaped positioning seat 341. In the device, the structural design of the absorption unit 34 is simple. When the cleaning scraper 332 in the cleaning unit 33 scrapes the impurities on the arc-shaped filter element body 322, the impurities move to the position of the arc-shaped positioning seat 341 with the rotation of the cleaning scraper 332. After the adsorption action of the electrostatic adsorption plate 344, the impurities are concentrated inside the collecting bin 343 through electrostatic adsorption, so that the impurities will no longer return to the position of the arc-shaped filter element body 322.

[0046] The arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 are both fixedly connected with a mounting block 35, and a mounting docking seat 324 is provided on the top of the filter element housing 32, and the mounting block 35 is movably clamped in the mounting docking seat 324, and a clamping unit 6 for limiting the mounting block 35 is provided on the mounting docking seat 324. The device uses the mounting block 35 to support and limit the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 as a whole, and the design of the mounting docking seat 324 and the clamping unit 6 makes it easy to disassemble and assemble the mounting block 35, so the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 are also easy to disassemble and assemble, thereby ensuring that the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 are easy to clean and maintain, and when the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 fail, it is also convenient to replace the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 in time.

[0047] The clamping unit 6 includes a guide rail seat 61 fixedly connected to the mounting docking seat 324 and a screw rod 62 threadedly connected to the guide rail seat 61, a wedge block 63 is rotatably connected to the screw rod 62, a locking groove 351 is provided on the mounting block 35, the wedge block 63 is movably clamped in the locking groove 351, a limiting platform 64 is provided on the wedge block 63, a sliding groove 65 is provided on the guide rail seat 61, and the limiting platform 64 is slidably connected in the sliding groove 65. The device stabilizes the force of the wedge block 63 through the cooperation of the limiting platform 64 and the sliding groove 65. Therefore, when the wedge block 63 clamps the locking groove 351, the clamping and sealing effect of the mounting block 35 and the mounting docking seat 324 is good.

[0048] The clamping unit 6 has a compact structure and is easy to operate. When the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 need to be installed, first align the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322 with the interior of the filter element clamping seat 321 and the impurity adsorption seat 323 respectively and insert them, and make the mounting block 35 clamped in the interior of the mounting docking seat 324. After it is fully inserted, rotate the screw rod 62 so that the screw rod 62 pushes the wedge block 63 to move, and the wedge block 63 is finally clamped in the interior of the locking groove 351 to achieve clamping and sealing of the mounting block 35, thereby ensuring the installation and positioning of the arc-shaped positioning seat 341 and the arc-shaped filter element main body 322.

[0049] A lubrication unit 4 for providing lubrication to the main shaft 333 is provided between the driving housing 31 and the filter housing 32. The lubrication unit 4 includes a shaft seat 41 provided between the driving housing 31 and the filter housing 32 and a rotating shaft 42 provided inside the shaft seat 41. The rotating shaft 42 is integrally formed with the main shaft 333. A sleeve seat 43 is fixedly connected to the side of the shaft seat 41. A lubrication nozzle 46 is provided inside the sleeve seat 43. A transmission wheel 44 is rotatably connected inside the sleeve seat 43. The transmission wheel 44 is fitted with the main shaft 333.

[0050] A reinforcement bracket 36 is provided on the driving housing 31 , a lubricating oil tank 45 is provided on the reinforcement bracket 36 , a lubricating nozzle 46 is arranged on the lubricating oil tank 45 , a lubricating wheel 47 is rotatably connected inside the lubricating nozzle 46 , and the lubricating wheel 47 is in contact with the transmission wheel 44 .

[0051] The lubrication unit 4 of the device is designed so that when the hydraulic oil drives the turbine 331, the cleaning scraper 332 and the main shaft 333 to rotate as a whole, it provides lubrication to the rotating support position, reduces resistance, reduces wear of the cleaning unit 33, and thus ensures good operation stability of the cleaning unit 33;

[0052] The lubrication unit 4 has a simple structural design. When the turbine 331 rotates to drive the main shaft 333 and the cleaning scraper 332 to rotate, the main shaft 333 drives the rotating shaft 42 to rotate, the rotating shaft 42 drives the transfer wheel 44 to rotate, and the transfer wheel 44 drives the lubrication wheel 47 inside the lubrication nozzle 46 to rotate. The lubrication wheel 47 absorbs the lubrication oil inside the lubrication nozzle 46 and the lubricating oil tank 45, and through the rotation, the lubricating oil is transferred to the transfer wheel 44, and then transferred to the rotating shaft 42 through the transfer wheel 44, thereby ensuring that the rotating shaft 42 and the shaft seat 41 are always in a lubricated state, thereby reducing the resistance of the turbine 331, the cleaning scraper 332 and the main shaft 333.

[0053] The reinforcement bracket 36 is provided with a tightening assembly 5, which includes a slider 51 arranged at the bottom of the lubricating oil tank 45 and a baffle 52 fixedly connected to the bottom of the reinforcement bracket 36, and a spring 53 is fixedly connected between the baffle 52 and the slider 51. Through the design of the tightening assembly 5, the device ensures that the lubricating wheel 47 can ensure a good fit with the transfer wheel 44, thereby ensuring a good transfer effect of the lubricating oil;

[0054] The elastic force of the spring 53 in the clamping assembly 5 causes the spring 53 to apply a thrust to the slider 51, which drives the lubricating oil tank 45 to move, and the lubricating oil tank 45 drives the lubricating nozzle 46 to move, thereby causing the lubricating nozzle 46 to drive the lubricating wheel 47 to maintain a fit with the transfer wheel 44.

[0055] A second aspect of the present invention provides a hydraulic control system including a filtering improvement mechanism for hydraulic oil in an oil circuit of a hydraulic control device.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mechanism for improving the filtration of hydraulic oil in an oil circuit of a hydraulic control device, comprising a hydraulic oil storage tank (1), a master brake cylinder (11), a brake wheel cylinder (12) and a wheel brake (13), wherein the hydraulic oil storage tank (1), the master brake cylinder (11), the brake wheel cylinder (12) and the wheel brake (13) are connected via a hydraulic oil pipe (2), and characterized in that: The hydraulic oil pipe (2) is provided with a hydraulic oil filter (3); The hydraulic oil filter (3) comprises a driving housing (31) and a filter element housing (32) fixedly connected to the hydraulic oil pipe (2); a filter element holder (321) and an arc-shaped filter element main body (322) movably engaged with the filter element holder (321) are provided inside the filter element housing (32); a cleaning unit (33) for automatically cleaning the arc-shaped filter element main body (322) is provided inside the driving housing (31) and the filter element housing (32); The cleaning unit (33) comprises a turbine (331) rotatably connected to the interior of the driving housing (31) and a cleaning scraper (332) rotatably connected to the interior of the filter element housing (32); a main shaft (333) is provided between the turbine (331) and the cleaning scraper (332); An absorption unit (34) for absorbing impurities is provided inside the filter element housing (32), and the absorption unit (34) comprises an arc-shaped positioning seat (341) movably clamped inside the filter element housing (32) and an electrostatic adsorption plate (344) arranged on the arc-shaped positioning seat (341); The arc-shaped positioning seat (341) and the arc-shaped filter element body (322) are both fixedly connected with a mounting block (35); a mounting docking seat (324) is provided on the top of the filter element housing (32); the mounting block (35) is movably clamped in the mounting docking seat (324); and a clamping unit (6) for limiting the position of the mounting block (35) is provided on the mounting docking seat (324); The clamping unit (6) comprises a guide rail seat (61) fixedly connected to the mounting docking seat (324) and a screw rod (62) threadedly connected to the guide rail seat (61); a wedge block (63) is rotatably connected to the screw rod (62); a locking groove (351) is formed on the mounting block (35); and the wedge block (63) is movably clamped in the locking groove (351); A lubrication unit (4) for providing lubrication for the main shaft (333) is provided between the drive housing (31) and the filter housing (32); the lubrication unit (4) comprises a shaft seat (41) provided between the drive housing (31) and the filter housing (32) and a rotating shaft (42) provided inside the shaft seat (41); the rotating shaft (42) and the main shaft (333) are integrally formed; a sleeve seat (43) is fixedly connected to a side surface of the shaft seat (41); a lubrication nozzle (46) is provided inside the sleeve seat (43).

2. The improved filtering mechanism for hydraulic oil in the hydraulic control device oil circuit according to claim 1, characterized in that: An impurity adsorption seat (323) is provided inside the filter element housing (32), the arc-shaped positioning seat (341) is movably clamped in the impurity adsorption seat (323), and an oil groove (342) and a collection bin (343) for supporting an electrostatic adsorption plate (344) are provided on the arc-shaped positioning seat (341).

3. The improved filtering mechanism for hydraulic oil in the hydraulic control device oil circuit according to claim 1, characterized in that: The wedge block (63) is provided with a limiting platform (64), the guide rail seat (61) is provided with a sliding groove (65), and the limiting platform (64) is slidably connected in the sliding groove (65).

4. The improved filtering mechanism for hydraulic oil in the hydraulic control device oil circuit according to claim 1, characterized in that: A guide plate (311) is provided inside the driving housing (31).

5. The improved filtering mechanism for hydraulic oil in the hydraulic control device oil circuit according to claim 1, characterized in that: A transmission wheel (44) is rotatably connected inside the sleeve (43), and the transmission wheel (44) is in close contact with the rotating shaft (42); A reinforcement bracket (36) is provided on the driving housing (31), a lubricating oil tank (45) is provided on the reinforcement bracket (36), the lubricating nozzle (46) is arranged on the lubricating oil tank (45), a lubricating wheel (47) is rotatably connected inside the lubricating nozzle (46), and the lubricating wheel (47) is in contact with the transmission wheel (44).

6. The improved filtering mechanism for hydraulic oil in the hydraulic control device oil circuit according to claim 5, characterized in that: The reinforcing bracket (36) is provided with a clamping assembly (5), the clamping assembly (5) comprising a sliding block (51) arranged at the bottom of the lubricating oil tank (45) and a baffle (52) fixedly connected to the bottom of the reinforcing bracket (36), and a spring (53) fixedly connected between the baffle (52) and the sliding block (51).

7. Hydraulic control system, characterized in that: A filtering improvement mechanism for hydraulic oil in an oil circuit of a hydraulic control device comprising the mechanism as described in any one of claims 1 to 6.

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