Hydraulic pulse generator

Abstract

The invention discloses a hydraulic pulse generator which comprises a shell, an end cover, a rotating disc, a pressing and abutting disc, a first filtering mechanism, a second filtering mechanism, a rotating shaft and a guiding mechanism, impurities in oil can be filtered through the first filtering mechanism and the second filtering mechanism, a second filtering net and a first filtering net are cleaned through a cleaning ring and a first scraping plate, and the filtering efficiency is improved. Two guide grooves are formed in the shell, and a guide mechanism is arranged, so that the cleaning ring can alternately slide between the two guide grooves through the guide mechanism, and the cleaning ring slides back and forth along the surface of the filter screen II to clean the filter screen II; and the cleaning ring rotates into the other guide groove after rotating for a circle in one guide groove, so that the scraper II can be in contact with the whole cleaning surface of the cleaning ring, the cleaning effect is further improved, and the impurities are ensured to be completely cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic pulse generating devices, in particular to a hydraulic pulse generator. Background Art

[0002] A hydraulic pulse generator is a device that can generate hydraulic pulse signals. It is widely used in many fields, including but not limited to testing and measurement in the electronics and machinery industries, heavy applications in braking systems of vehicles and mechanical equipment, and heavy applications in hydraulic transmission and control systems.

[0003] The existing Chinese patent with publication number CN117628016A discloses a hydraulic pulse generator and a test bench, which proposes the problem that the traditional hydraulic pulse generator will wear during use and cause leakage of high-pressure oil from the mating surface. For this reason, an elastic member is set to apply axial force to the static disk, thereby pressing the dynamic disk against the inner wall of the shell, so that there is pressure between the dynamic disk and the static disk and between the dynamic disk and the shell, so that the high-pressure oil will not leak when flowing from the static disk to the dynamic disk and from the dynamic disk to the pulse output port.

[0004] Although the technical solution proposed by the above patent can effectively avoid the problem of high-pressure oil leakage, friction will inevitably occur between the moving plate and the stationary plate, as well as between the moving plate and the housing during the rotation of the moving plate. In addition, during long-term use, the internal components will age and produce some impurities. These impurities will spread to the entire hydraulic oil circuit with the flow of hydraulic oil, thereby affecting the normal operation of the hydraulic system. The impurities will further aggravate the wear of the pulse equipment, thereby reducing the service life of the pulse equipment.

[0005] Therefore, it is necessary to provide a hydraulic pulse generator to solve the problems raised in the above background technology. Summary of the invention

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic pulse generator, comprising a housing, an end cover, a rotating disk, a pressure plate, a first filter mechanism, a second filter mechanism and a rotating shaft, wherein the housing and the end cover are fixedly connected by bolts, the rotating disk is rotatably arranged in the housing and driven by the rotating shaft, the pressure plate is slidably arranged on the end cover and a pressure piece is arranged between the two, a low-pressure oil port and a plurality of output ports are provided on the housing, a plurality of first through grooves and a plurality of T-shaped second through grooves are arranged at intervals on the rotating disk, the output ends of the first through grooves and the second through grooves are connected to the plurality of output ports, the input end of the second through groove is connected to the low-pressure oil port, a high-pressure oil port is provided on the end cover, a plurality of third through grooves are provided on the pressure plate, the input end of the third through groove is connected to the high-pressure oil port, and the input end of the first through groove can be rotatably connected to the output end of the third through groove, a first filter mechanism is also arranged in the output port, and a second filter mechanism is arranged at the low-pressure oil port;

[0007] The first filtering mechanism comprises a bracket 1 and a filter screen 1, wherein the bracket 1 is sealed and rotatably arranged in the housing, the bracket 1 is ring-shaped, the filter screen 1 is fixedly arranged on the bracket 1, and a plurality of connecting rods are also fixedly arranged on the bracket 1, the connecting rods penetrate the housing and a driving ring is fixedly arranged at the output end, and the driving ring is driven by the rotating shaft;

[0008] The second filtering mechanism includes a second bracket, a second filter screen and a cleaning ring, wherein the second bracket is composed of two circular rings, and a second ring-shaped filter screen is fixedly arranged on the inner sides of the two circular rings, a filter groove is provided on the outer shell, the second bracket is rotatably arranged in the filter groove, a cleaning ring is slidably arranged in the filter groove, the outer side of the cleaning ring is in contact with the second filter screen, a plurality of L-shaped support rods are fixedly arranged on the cleaning ring, a plurality of the support rods are sealingly and slidably connected with the rotating disk, and a plurality of the support rods penetrate the rotating disk and are fixedly arranged with a guide ring, a guide block is fixedly arranged on the guide ring, two guide grooves are provided on the outer shell, a connecting port is provided between the two guide grooves, a guide mechanism is provided at the connecting port, and the guide block can slide alternately in the two guide grooves through the guide mechanism.

[0009] Preferably, the guide mechanism includes a guide plate, a push rod, a driving mechanism and a locking mechanism, wherein two guide plates are configured, the two guide plates are respectively rotatably set in the two guide grooves, two locking slots are opened on the guide plate, two push rods are slidably set on the outer shell, two locking rods are fixedly set on the push rod, the two locking rods are respectively locked in two locking slots located on the same side of the two guide plates, one end of the push rod is driven by the driving mechanism, and the other end of the push rod can be engaged with the locking mechanism.

[0010] Preferably, the driving mechanism includes a driving block, a two-way telescopic rod and a connecting block, wherein the driving block is slidably arranged on the outer shell and a spring is arranged between the driving block and the outer shell, and the driving block protrudes from the outer shell and is provided with an inclined pushing surface, a T-slot is obliquely opened on the driving block, the connecting block is slidably arranged on the outer shell, a T-block is fixedly arranged on one side of the connecting block close to the driving block, the T-block slides along the T-slot, the two-way telescopic rod is rotatably arranged on the outer shell, one end of the two-way telescopic rod is hinged on the push rod, and the other end is hinged on the connecting block.

[0011] Preferably, the locking mechanism includes a locking rod and a pressing block, wherein the locking rod is slidably arranged on the outer shell and a second spring is arranged between the outer shell, a slope is arranged on the side of the locking rod close to the push rod, a slot is provided on the push rod, the locking rod can be inserted into the slot, a second T-block is fixedly arranged on the locking rod, the pressing block is slidably arranged on the outer shell and a third spring is arranged between the outer shell, and the pressing block protrudes from the outer shell and is provided with an inclined pushing surface, a second T-slot is obliquely provided on the pressing block, and the second T-block slides along the second T-slot.

[0012] Preferably, a first drain trough and a second drain trough are formed through the bottom of the shell, the first drain trough is located below the first filter mechanism, the second drain trough is located below the second filter mechanism, a first sealing plate and a first collecting box are slidably arranged in the first drain trough, and a second sealing plate with the same structure as the first sealing plate and a second collecting box with the same structure as the first collecting box are slidably arranged in the second drain trough.

[0013] Preferably, the first sealing plate is an arc-shaped plate, a conducting port having the same size as the first collecting box is provided on the first sealing plate, and a stepped interface is also provided on the first sealing plate, and the first collecting box can be sealed and inserted into the interface;

[0014] An arc-shaped guide groove is provided in the first sewage drain groove, a spherical groove is provided at the end of the arc-shaped guide groove, a guide block is fixedly provided on the first collecting box, a spherical block is slidably provided on the guide block through spring four, the guide block slides along the arc-shaped guide groove, and the spherical block can be stuck in the spherical groove.

[0015] Preferably, a scraper 1 is fixedly provided obliquely on one side of the first sewage chute close to the first filtering mechanism, and the scraper 1 is attached to the filter net 1. Two scrapers 2 are fixedly provided obliquely on one side of the second sewage chute close to the second filtering mechanism, and the two scrapers 2 can be attached to both sides of the cleaning ring respectively.

[0016] Compared with the prior art, the present invention provides a hydraulic pulse generator having the following

[0017] Beneficial effects:

[0018] In the present invention, the hydraulic oil introduced into the output port can be filtered by the first filtering mechanism, and the impurities filtered on the filter screen one can be cleaned by the scraper one, the hydraulic oil returned from the low-pressure oil port to the oil tank can be filtered by the second filtering mechanism, and the impurities filtered on the filter screen two can be cleaned by the back-and-forth sliding of the cleaning ring, and the impurities cleaned on the cleaning ring can be further cleaned by the scraper two, two guide grooves are opened on the outer shell, and a guiding mechanism is provided, so that the cleaning ring can slide alternately between the two guide grooves through the guiding mechanism, that is, the cleaning ring can slide along the surface of the filter screen two to clean the filter screen two, and in the process of alternating back and forth sliding, the cleaning ring will rotate one circle in one guide groove before turning into the other guide groove, so that the scraper two can contact the entire cleaning surface of the cleaning ring, further improving the cleaning effect, ensuring that the impurities are completely cleaned, and the cleaned impurities are collected by the first sealing plate, the first collecting box, the second sealing plate and the second collecting box provided on the outer shell, so that the hydraulic oil can always be kept in a clean state, avoiding the influence of impurities on the hydraulic system and extending the service life of the pulse device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure diagram of this system;

[0020] Figure 2 The schematic diagram of the overall structure section is as follows;

[0021] Figure 3 It is a schematic diagram of the structure of the rotating disk and the pressing disk in the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the first sewage trough and the second sewage trough in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the first collection box and the second collection box in the present invention;

[0024] Figure 6 It is a structural schematic diagram of the first filtering mechanism in the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the cleaning ring in the present invention;

[0026] Figure 8 It is a schematic diagram of the internal structure of the housing in the present invention;

[0027] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0028] In the figure: 1, housing; 11, low-pressure oil port; 12, output port; 13, filter tank; 14, guide groove; 15, first sewage tank; 151, first sealing plate; 152, first collecting box; 153, arc guide groove; 154, guide block; 155, scraper 1; 16, second sewage tank; 161, second sealing plate; 162, second collecting box; 163, scraper 2; 2, end cover; 21, high-pressure oil port; 3, rotating disk; 31, first through groove; 32, second through groove; 4, pressing disk; 41, third through groove; 5, first filtering mechanism; 51, bracket 1; 52, filter screen 1; 53, Connecting rod; 54, driving ring; 6, second filtering mechanism; 61, bracket two; 62, filter screen two; 63, cleaning ring; 631, supporting rod; 632, guide ring; 633, guide block; 7, rotating shaft; 8, guiding mechanism; 81, guide plate; 811, card slot; 82, push rod; 821, card rod; 822, bayonet; 83, driving mechanism; 831, driving block; 832, two-way telescopic rod; 833, connecting block; 834, T-slot one; 835, T-block one; 84, engaging mechanism; 841, engaging rod; 842, pressing block; 843, T-block two; 844, T-slot two. DETAILED DESCRIPTION

[0029] See also Figures 1 to 9 In an embodiment of the present invention, a hydraulic pulse generator includes a housing 1, an end cover 2, a rotating disk 3, a pressing disk 4, a first filter mechanism 5, a second filter mechanism 6 and a rotating shaft 7, wherein the housing 1 is fixedly connected to the end cover 2 by bolts, the rotating disk 3 is rotatably arranged in the housing 1 and driven by the rotating shaft 7, the pressing disk 4 is slidably arranged on the end cover 2 and a pressing member is arranged between the two, the housing 1 is provided with a low-pressure oil port 11 and a plurality of output ports 12, the rotating disk 3 is provided with a plurality of first through grooves 31 and a plurality of T-shaped second through grooves 31 at intervals. Two through grooves 32, the output ends of the first through groove 31 and the second through groove 32 are connected to the plurality of the output ports 12, the input end of the second through groove 32 is connected to the low-pressure oil port 11, the end cover 2 is provided with a high-pressure oil port 21, the pressure plate 4 is provided with a plurality of third through grooves 41, the input end of the third through groove 41 is connected to the high-pressure oil port 21, and the input end of the first through groove 31 can be rotatably connected to the output end of the third through groove 41, the output port 12 is further provided with a first filtering mechanism 5, and the low-pressure oil port 11 is provided with a second filtering mechanism 6;

[0030] The first filtering mechanism 5 comprises a bracket 51 and a filter screen 52, wherein the bracket 51 is sealed and rotatably arranged in the housing 1, the bracket 51 is ring-shaped, the filter screen 52 is fixedly arranged on the bracket 51, and a plurality of connecting rods 53 are also fixedly arranged on the bracket 51, the connecting rods 53 penetrate the housing 1 and a driving ring 54 is fixedly arranged at the output end, and the driving ring 54 is driven by the rotating shaft 7;

[0031] The second filtering mechanism 6 comprises a second bracket 61, a second filter screen 62 and a cleaning ring 63, wherein the second bracket 61 is composed of two circular rings, and a second filter screen 62 in an annular shape is fixedly arranged on the inner side of the two circular rings, a filter slot 13 is provided on the shell 1, the second bracket 61 is rotatably arranged in the filter slot 13, a cleaning ring 63 is slidably arranged in the filter slot 13, the outer side of the cleaning ring 63 is in contact with the second filter screen 62, a plurality of L-shaped support rods 631 are fixedly arranged on the cleaning ring 63, a plurality of the support rods 631 are sealingly and slidably connected with the rotating disk 3, and a plurality of the support rods 631 penetrate the rotating disk 3 and are fixedly arranged with a guide ring 632, a guide block 633 is fixedly arranged on the guide ring 632, two guide slots 14 are provided on the shell 1, a connecting port is provided between the two guide slots 14, a guide mechanism 8 is provided at the connecting port, and the guide block 633 can slide alternately between the two guide slots 14 through the guide mechanism 8;

[0032] It should be noted that the second bracket 61 itself has a height, that is, it can raise the second filter screen 62 by one end, so that the second filter screen 62 will not directly contact the low-pressure oil port 11 and the second through groove 32, that is, the second filter screen 62 can separate the filter tank 13 into a filter chamber and a clean chamber, and further make the impurities can be cleaned through the entire second filter screen 62 instead of being filtered only at the outlet of the low-pressure oil port 11, further improving its filtering effect;

[0033] The bottom of the housing 1 is provided with a first drain groove 15 and a second drain groove 16, wherein the first drain groove 15 is located below the first filter mechanism 5, and the second drain groove 16 is located below the second filter mechanism 6, wherein a first sealing plate 151 and a first collecting box 152 are slidably disposed in the first drain groove 15, and a second sealing plate 161 having the same structure as the first sealing plate 151 and a second collecting box 162 having the same structure as the first collecting box 152 are slidably disposed in the second drain groove 16;

[0034] The first sealing plate 151 is an arc-shaped plate, and a conducting port having the same size as the first collecting box 152 is provided on the first sealing plate 151. The first sealing plate 151 is also provided with a stepped interface, and the first collecting box 152 can be sealed and inserted into the interface;

[0035] The first sewage drain trough 15 is provided with an arc-shaped guide groove 153, the end of the arc-shaped guide groove 153 is provided with a spherical groove, the first collecting box 152 is fixedly provided with a guide block 154, the guide block 154 is provided with a spherical block slidingly provided via a spring 4, the guide block 154 slides along the arc-shaped guide groove 153, and the spherical block can be stuck in the spherical groove;

[0036] A scraper 155 is fixedly and tiltedly provided on one side of the first sewage chute 15 close to the first filtering mechanism 5, and the scraper 155 is attached to the filter net 52. Two scrapers 163 are fixedly and tiltedly provided on one side of the second sewage chute 16 close to the second filtering mechanism 6, and the two scrapers 163 can be attached to both sides of the cleaning ring 63 respectively.

[0037] During implementation, the rotating shaft 7 drives the rotating disk 3 to rotate, so that the high-pressure oil port 21 and the low-pressure oil port 11 are alternately connected to the output port 12, thereby generating hydraulic pulses. During this process, the filter screen 52 can filter the hydraulic oil entering the output port 12 and intercept impurities on the filter screen 52, and the rotating shaft 7 will synchronously drive the bracket 51 to rotate, thereby rotating the filter screen 52. During the rotation process, the scraper 155 fits with the filter screen 52, thereby filtering the filter screen 52. The impurities intercepted on the second filter screen 62 are scraped off and collected by the first collecting box 152. The second filter screen 62 can filter the hydraulic oil returning from the low-pressure oil port 11 and intercept the impurities on the second filter screen 62. Then the cleaning ring 63 rotates with the rotating disk 3, and during the rotation process, the guide block 633 slides alternately along the two guide grooves 14 under the action of the guide mechanism 8, so that the cleaning ring 63 can slide back and forth along the surface of the second filter screen 62, pushing the impurities intercepted on the second filter screen 62 to the passing On both sides of the filter tank 13, the cleaning ring 63 will further fit on the scraper plate 163 during the back and forth sliding process, so that the impurities on the cleaning ring 63 are cleaned off and collected by the second collecting box 162, and the guide mechanism 8 is arranged at the bottom of the guide groove 14, so that the guide block 633 will slide into the other guide groove 14 only after rotating one circle along one of the guide grooves 14, so that the cleaning ring 63 can rotate one circle when contacting the scraper plate 163, thereby ensuring that the impurities on the cleaning ring 63 are completely cleaned off, further improving the cleaning effect, so that the hydraulic oil can be kept in a clean state, and the impurities generated inside the pulse housing 1 can be effectively cleaned out, further reducing the wear of the internal components of the device and effectively improving its service life. In addition, through the design of the first sealing plate 151, the first collecting box 152, the second sealing plate 162 and the second collecting box 162, after the impurities accumulate for a period of time, the impurities can be cleaned by simply rotating the first collecting box 152 and the second collecting box 162 to remove them, further improving its convenience.

[0038] In this embodiment, Figure 8 and Fig. 9 The guide mechanism 8 includes a guide plate 81, a push rod 82, a driving mechanism 83 and a locking mechanism 84, wherein two guide plates 81 are configured, and the two guide plates 81 are respectively rotatably arranged in the two guide grooves 14, and two locking grooves 811 are provided on the guide plate 81, and two push rods 82 are slidably arranged on the housing 1, and two locking rods 821 are fixedly arranged on the push rod 82, and the two locking rods 821 are respectively locked in the two locking grooves 811 located on the same side of the two guide plates 81, and one end of the push rod 82 is driven by the driving mechanism 83, and the other end of the push rod 82 can be locked with the locking mechanism 84;

[0039] The driving mechanism 83 includes a driving block 831, a two-way telescopic rod 832 and a connecting block 833, wherein the driving block 831 is slidably arranged on the housing 1 and a spring 1 is arranged between the housing 1, and the driving block 831 protrudes from the housing 1 and is provided with an inclined push surface, a T-shaped slot 834 is obliquely opened on the driving block 831, the connecting block 833 is slidably arranged on the housing 1, a T-shaped block 835 is fixedly arranged on one side of the connecting block 833 close to the driving block 831, the T-shaped block 835 slides along the T-shaped slot 834, the two-way telescopic rod 832 is rotatably arranged on the housing 1, one end of the two-way telescopic rod 832 is hinged on the push rod 82, and the other end is hinged on the connecting block 833;

[0040] The locking mechanism 84 includes a locking rod 841 and a pressing block 842, wherein the locking rod 841 is slidably arranged on the shell 1 and a spring 2 is arranged between the shell 1, a slope is arranged on the side of the locking rod 841 close to the push rod 82, a bayonet 822 is provided on the push rod 82, the locking rod 841 can be inserted into the bayonet 822, a T-block 2 843 is fixedly arranged on the locking rod 841, the pressing block 842 is slidably arranged on the shell 1 and a spring 3 is arranged between the shell 1, the pressing block 842 protrudes from the shell 1 and is provided with an inclined pushing surface, a T-slot 2 844 is obliquely provided on the pressing block 842, and the T-block 2 842 slides along the T-slot 2 844.

[0041] During implementation, the two guide plates 81 are in an inclined state in the initial state, and the guide position is deflected from the guide groove 14 on the side away from the pressure plate 4 to the guide groove 14 on the side close to the pressure plate 4. Then, when the guide block 633 rotates to the bottom along the guide groove 14 on the side away from the pressure plate 4, the guide block 633 will be guided to the guide groove 14 on the side close to the pressure plate 4 under the action of the guide plate 81, and after entering this guide groove 14, the guide block 633 will squeeze the drive block 831, so that the The driving block 831 slides downward, further causing the connecting block 833 to slide under the action of the T-slot 1 834 and the T-block 1 835, and driving the push rod 82 to slide through the bidirectional hydraulic rod 832. The sliding of the push rod 82 further drives the guide plate 81 to deflect, and the push rod 82 can further squeeze the engaging rod 841 during the sliding process, so that the engaging rod 841 is engaged in the bayonet 822, thereby fixing the position of the push rod 82. At this time, the guiding position of the guide plate 81 is reversed, and then After the guide block 833 rotates one circle along the guide groove 14, it is guided back to the guide groove 14 away from the side of the pressing plate 4 under the action of the guide plate 81, and after entering the guide groove 14, the guide block 633 squeezes the pressing block 842, so that the engaging rod 841 slides out of the bayonet 822 under the action of the T-slot 844 and the T-block 843, thereby causing the driving block 831 to reset under the action of the spring 1, and causing the push rod 82 to slide, further driving the guide plate 81 to rotate to the initial position. The guide block 633 is in the initial state, and then after the guide block 633 is separated from the pressing block 842, the pressing block 842 and the locking rod 841 return to the initial state under the action of spring three and spring two respectively, and then the cycle is repeated, so that the guide block 63 slides alternately along the two guide grooves 14, that is, the cleaning ring 63 slides back and forth along the filter screen 62 to clean the filter screen 62. In this process, there is no need to introduce other external power. The cleaning ring 63 can clean the filter screen 62 only by the rotation of the rotating disk 3 itself, thereby further improving its convenience.

[0042] In summary, the first filter mechanism 5 provided in the present invention can filter the hydraulic oil entering the output port 12, and clean the impurities filtered on the filter screen 1 52 through the scraper 1 55, filter the hydraulic oil returning from the low-pressure oil port 11 to the oil tank through the second filter mechanism 6, and clean the impurities filtered on the filter screen 2 62 by sliding the cleaning ring 63 back and forth, and further clean the impurities cleaned on the cleaning ring 63 through the scraper 2 163, open two guide grooves 14 on the housing 1, and set the guide mechanism 8, so that the cleaning ring 63 can slide alternately between the two guide grooves 14 through the guide mechanism 8, that is, the cleaning ring 63 can The filter screen 62 is cleaned by sliding along the surface of the filter screen 62, and in the process of sliding back and forth, the cleaning ring 63 rotates one circle in one guide groove 14 before turning into another guide groove 14, so that the scraper 163 can contact the entire cleaning surface of the cleaning ring 63, further improving the cleaning effect, ensuring that all impurities are cleaned up, and the cleaned impurities are collected by the first sealing plate 151, the first collecting box 152, the second sealing plate 161 and the second collecting box 162 arranged on the outer shell 1, so that the hydraulic oil can always remain in a clean state, avoiding impurities from affecting the hydraulic system and extending the service life of the pulse device.

[0043] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic pulse generator, characterized in that: The invention comprises a housing (1), an end cover (2), a rotating disk (3), a pressure plate (4), a first filtering mechanism (5), a second filtering mechanism (6) and a rotating shaft (7), wherein the housing (1) and the end cover (2) are fixedly connected by bolts, the rotating disk (3) is rotatably arranged in the housing (1) and driven by the rotating shaft (7), the pressure plate (4) is slidably arranged on the end cover (2) and a pressure member is arranged between the two, the housing (1) is provided with a low-pressure oil port (11) and a plurality of output ports (12), the rotating disk (3) is provided with a plurality of first through grooves (31) and a plurality of T-shaped second through grooves (32) at intervals, The output ends of the first through groove (31) and the second through groove (32) are in communication with the plurality of output ports (12), the input end of the second through groove (32) is in communication with the low-pressure oil port (11), the end cover (2) is provided with a high-pressure oil port (21), the pressure plate (4) is provided with a plurality of third through grooves (41), the input end of the third through groove (41) is in communication with the high-pressure oil port (21), and the input end of the first through groove (31) can be rotatably connected with the output end of the third through groove (41), the output port (12) is further provided with a first filtering mechanism (5), and the low-pressure oil port (11) is provided with a second filtering mechanism (6); The first filtering mechanism (5) comprises a bracket (51) and a filter screen (52), wherein the bracket (51) is rotatably arranged in the housing (1), the bracket (51) is ring-shaped, the filter screen (52) is fixedly arranged on the bracket (51), and a plurality of connecting rods (53) are also fixedly arranged on the bracket (51), the connecting rods (53) penetrate the housing (1) and a driving ring (54) is fixedly arranged at the output end, and the driving ring (54) is driven by the rotating shaft (7); The second filtering mechanism (6) comprises a second bracket (61), a second filter screen (62) and a cleaning ring (63), wherein the second bracket (61) is composed of two circular rings, and a second filter screen (62) in the shape of an annular ring is fixedly arranged on the inner side of the two circular rings, a filtering groove (13) is provided on the housing (1), the second bracket (61) is rotatably arranged in the filtering groove (13), a cleaning ring (63) is slidably arranged in the filtering groove (13), the outer side of the cleaning ring (63) is in contact with the second filter screen (62), and a plurality of L-shaped fixed rings are fixedly arranged on the cleaning ring (63). A plurality of support rods (631) are sealed and slidably connected to the rotating disk (3), and the plurality of support rods (631) penetrate the rotating disk (3) and are fixedly provided with a guide ring (632), and a guide block (633) is fixedly provided on the guide ring (632), and two guide grooves (14) are provided on the housing (1), and a connecting port is provided between the two guide grooves (14), and a guide mechanism (8) is provided at the connecting port, and the guide block (633) can slide alternately in the two guide grooves (14) through the guide mechanism (8).

2. A hydraulic pulse generator according to claim 1, characterized in that: The guide mechanism (8) comprises a guide plate (81), a push rod (82), a driving mechanism (83) and a locking mechanism (84), wherein two guide plates (81) are provided, the two guide plates (81) are respectively rotatably arranged in the two guide grooves (14), the guide plate (81) is provided with two locking grooves (811), two push rods (82) are slidably arranged on the housing (1), two locking rods (821) are fixedly arranged on the push rod (82), the two locking rods (821) are respectively locked in two locking grooves (811) located on the same side of the two guide plates (81), one end of the push rod (82) is driven by the driving mechanism (83), and the other end of the push rod (82) can be locked with the locking mechanism (84).

3. A hydraulic pulse generator according to claim 2, characterized in that: The driving mechanism (83) comprises a driving block (831), a bidirectional telescopic rod (832) and a connecting block (833), wherein the driving block (831) is slidably arranged on the housing (1) and a spring is arranged between the driving block (831) and the housing (1), and the driving block (831) protrudes from the housing (1) and is provided with an inclined push surface, a T-shaped slot (834) is obliquely provided on the driving block (831), the connecting block (833) is slidably arranged on the housing (1), a T-shaped block (835) is fixedly arranged on a side of the connecting block (833) close to the driving block (831), and the T-shaped block (835) slides along the T-shaped slot (834), the bidirectional telescopic rod (832) is rotatably arranged on the housing (1), one end of the bidirectional telescopic rod (832) is hinged on the push rod (82), and the other end is hinged on the connecting block (833).

4. A hydraulic pulse generator according to claim 2, characterized in that: The locking mechanism (84) comprises a locking rod (841) and a pressing block (842), wherein the locking rod (841) is slidably arranged on the housing (1) and a second spring is arranged between the housing (1), a side of the locking rod (841) close to the push rod (82) is provided with an inclined surface, the push rod (82) is provided with a bayonet (822), the locking rod (841) can be inserted into the bayonet (822), a second T-shaped block (843) is fixedly arranged on the locking rod (841), the pressing block (842) is slidably arranged on the housing (1) and a third spring is arranged between the housing (1), the pressing block (842) protrudes from the housing (1) and is provided with an inclined pushing surface, a second T-shaped slot (844) is obliquely provided on the pressing block (842), and the second T-shaped block (842) slides along the second T-shaped slot (844).

5. A hydraulic pulse generator according to claim 1, characterized in that: A first sewage trough (15) and a second sewage trough (16) are provided through the bottom of the housing (1); the first sewage trough (15) is located below the first filtering mechanism (5); the second sewage trough (16) is located below the second filtering mechanism (6); a first sealing plate (151) and a first collecting box (152) are slidably arranged in the first sewage trough (15); a second sealing plate (161) having the same structure as the first sealing plate (151) and a second collecting box (162) having the same structure as the first collecting box (152) are slidably arranged in the second sewage trough (16).

6. A hydraulic pulse generator according to claim 5, characterized in that: The first sealing plate (151) is an arc-shaped plate, and a conducting port having the same size as the first collecting box (152) is provided on the first sealing plate (151). The first sealing plate (151) is also provided with a stepped interface, and the first collecting box (152) can be sealed and inserted into the interface; An arc-shaped guide groove (153) is provided in the first sewage discharge groove (15), a spherical groove is provided at the end of the arc-shaped guide groove (153), a guide block (154) is fixedly provided on the first collecting box (152), a spherical block is slidably provided on the guide block (154) via a spring four, the guide block (154) slides along the arc-shaped guide groove (153), and the spherical block can be stuck in the spherical groove.

7. A hydraulic pulse generator according to claim 5, characterized in that: A scraper plate 1 (155) is fixedly and obliquely arranged on one side of the first sewage chute (15) close to the first filtering mechanism (5), and the scraper plate 1 (155) is attached to the filtering net 1 (52). Two scraper plates 2 (163) are fixedly and obliquely arranged on one side of the second sewage chute (16) close to the second filtering mechanism (6), and the two scraper plates 2 (163) can be attached to both sides of the cleaning ring (63) respectively.

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