A hydraulic pulse generator

Abstract

The present invention discloses a hydraulic pulse generator, which comprises a housing, an end cover, a rotating disk, a pressing disk, a first filtering mechanism, a second filtering mechanism, a rotating shaft and a guiding mechanism. The first filtering mechanism and the second filtering mechanism can filter impurities in the oil fluid, and a cleaning ring and a scraper are used to clean the second filter screen and the first filter screen. A second scraper is further provided to clean the impurities cleaned on the cleaning ring. Two guiding grooves are formed in the housing, and the guiding mechanism is provided so that the cleaning ring can alternately slide between the two guiding grooves through the guiding mechanism, realizing that the cleaning ring slides back and forth along the surface of the second filter screen to clean the second filter screen. Moreover, the cleaning ring will only turn into another guiding groove after rotating one circle in one guiding groove, so that the second scraper can contact the entire cleaning surface of the cleaning ring, further improving the cleaning effect and ensuring that all impurities are completely cleaned up.

Description

Technical Field

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

[0002] A hydraulic pulse generator is a device capable of generating hydraulic pulse signals, which has a wide range of applications in multiple fields, including but not limited to testing and measurement in the electronics, machinery and other industries, applications in braking systems of vehicles, mechanical equipment, etc., and applications in hydraulic transmission and control systems.

[0003] The existing Chinese patent with the publication number CN117628016A discloses a hydraulic pulse generator and a test bench. It is proposed that in the use process of the traditional hydraulic pulse generator, wear will occur, resulting in the leakage of high-pressure oil from the mating surface. To solve this problem, an elastic member is provided to apply an axial force to the static disc, and then the moving disc is pressed against the inner wall of the housing, so that there is pressure between the moving disc and the static disc and between the moving disc and the housing, ensuring that no leakage occurs during the process of high-pressure oil flowing from the static disc to the moving disc and from the moving disc 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, during the rotation of the moving disc, friction will inevitably occur between the moving disc and the static disc and between the moving disc and the housing. During long-term use, internal components will age, generating some impurities. These impurities will spread throughout the hydraulic oil circuit with the flow of the hydraulic oil, affecting the normal operation of the hydraulic system, and the impurities will further exacerbate the wear of the pulse device, reducing the service life of the pulse device.

[0005] Therefore, it is necessary to provide a hydraulic pulse generator to solve the problems proposed in the above background art. Summary of the Invention

[0006] To achieve the above object, the present invention provides the following technical solution: A hydraulic pulse generator, comprising a housing, an end cover, a rotating disk, a pressing disk, a first filtering mechanism, a second filtering mechanism and a rotating shaft. Among them, 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 pressing disk is slidably arranged on the end cover and a pressing member is arranged between the two. A low-pressure oil port and a plurality of output ports are opened on the housing. A plurality of first through grooves and a plurality of second through grooves in a T shape are spaced apart on the rotating disk. The output ends of the first through grooves and the second through grooves are communicated with the plurality of output ports. The input end of the second through groove is communicated with the low-pressure oil port. A high-pressure oil port is opened on the end cover. A plurality of third through grooves are opened on the pressing disk. The input end of the third through groove is communicated with the high-pressure oil port. And the input end of the first through groove can rotate to be communicated with the output end of the third through groove. A first filtering mechanism is further arranged in the output port. A second filtering mechanism is arranged at the low-pressure oil port;

[0007] The first filtering mechanism includes a first bracket and a first filter screen. Among them, the first bracket is hermetically and rotatably arranged in the housing. The first bracket is in a ring shape. A first filter screen is fixedly arranged on the first bracket. A plurality of connecting rods are further fixedly arranged on the first bracket. The connecting rods penetrate through the housing and a driving ring is fixedly arranged at the output end. 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. Among them, the second bracket is composed of two circular rings. And an annular second filter screen is fixedly arranged on the inner sides of the two circular rings. A filtering groove is opened on the housing. The second bracket is rotatably arranged in the filtering groove. A cleaning ring is slidably arranged in the filtering groove. The outer side of the cleaning ring is attached to the second filter screen. A plurality of L-shaped support rods are fixedly arranged on the cleaning ring. The plurality of support rods are hermetically and slidably connected with the rotating disk. And the plurality of support rods penetrate through the rotating disk and a guiding ring is fixedly arranged. A guiding block is fixedly arranged on the guiding ring. Two guiding grooves are opened on the housing. A communication port is arranged between the two guiding grooves. A guiding mechanism is arranged at the communication port. The guiding block can slide between the two guiding grooves through the guiding mechanism alternately.

[0009] Preferably, the guiding mechanism includes a guiding plate, a push rod, a driving mechanism and a clamping mechanism. Among them, two guiding plates are provided. The two guiding plates are respectively rotatably arranged in the two guiding grooves. Two clamping grooves are opened on the guiding plate. Two push rods are slidably arranged on the housing. Two clamping rods are fixedly arranged on the push rods. The two clamping rods are respectively clamped into two clamping grooves on the same side of the two guiding plates. One end of the push rod is driven by the driving mechanism. The other end of the push rod can be clamped with the clamping mechanism.

[0010] Preferably, the driving mechanism includes a driving block, a bidirectional telescopic rod, and a connecting block. Among them, the driving block is slidably arranged on the housing and a first spring is arranged between the driving block and the housing. The driving block protrudes from the housing and is provided with an inclined pushing surface. A first T-shaped groove is obliquely formed on the driving block. The connecting block is slidably arranged on the housing. A first T-shaped block is fixedly arranged on one side of the connecting block close to the driving block. The first T-shaped block slides along the first T-shaped groove. The bidirectional telescopic rod is rotatably arranged on the housing. One end of the bidirectional telescopic rod is hinged to the push rod, and the other end is hinged to the connecting block.

[0011] Preferably, the engaging mechanism includes an engaging rod and a pressing block. Among them, the engaging rod is slidably arranged on the housing and a second spring is arranged between the engaging rod and the housing. One side of the engaging rod close to the push rod is provided with an inclined surface. A bayonet is formed on the push rod. The engaging rod can be inserted into the bayonet. A second T-shaped block is fixedly arranged on the engaging rod. The pressing block is slidably arranged on the housing and a third spring is arranged between the pressing block and the housing. The pressing block protrudes from the housing and is provided with an inclined pushing surface. A second T-shaped groove is obliquely formed on the pressing block. The second T-shaped block slides along the second T-shaped groove.

[0012] Preferably, a first sewage discharge groove and a second sewage discharge groove are penetrated through the bottom of the housing. The first sewage discharge groove is located below the first filtering mechanism. The second sewage discharge groove is located below the second filtering mechanism. A first sealing plate and a first collection box are slidably arranged in the first sewage discharge groove. A second sealing plate having the same structure as the first sealing plate and a second collection box having the same structure as the first collection box are slidably arranged in the second sewage discharge groove.

[0013] Preferably, the first sealing plate is an arc-shaped plate. A conduction port having the same size as the first collection box is formed on the first sealing plate. A stepped interface is further arranged on the first sealing plate. The first collection box can be hermetically clamped into the interface.

[0014] An arc-shaped guide groove is formed in the first sewage discharge groove. A spherical groove is formed at the end of the arc-shaped guide groove. A guide block is fixedly arranged on the first collection box. A spherical block is slidably arranged on the guide block through a fourth spring. The guide block slides along the arc-shaped guide groove, and the spherical block can be inserted into the spherical groove.

[0015] Preferably, a first scraping plate is obliquely and fixedly arranged on one side of the first sewage discharge groove close to the first filtering mechanism. The first scraping plate is attached to the first filter net. Two second scraping plates are obliquely and fixedly arranged on one side of the second sewage discharge groove close to the second filtering mechanism. The two second scraping plates can be respectively attached to both sides of the cleaning ring.

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

[0017] Advantageous effects:

[0018] In the present invention, the first filtering mechanism can filter the hydraulic oil introduced into the output port, and the first scraper can clean the impurities filtered on the first filter screen. The second filtering mechanism filters the hydraulic oil flowing back from the low-pressure oil port to the fuel tank, and the reciprocating sliding of the cleaning ring is used to clean the impurities filtered on the second filter screen. In addition, the second scraper further cleans the impurities cleaned on the cleaning ring. Two guiding grooves are opened on the outer shell, and a guiding mechanism is provided, so that the cleaning ring can slide alternately between the two guiding grooves through the guiding mechanism, that is, the cleaning ring can slide along the surface of the second filter screen to clean the second filter screen. And during the reciprocating sliding process, the cleaning ring will rotate one circle in one guiding groove before turning into another guiding groove, so that the second scraper can contact the entire cleaning surface of the cleaning ring, further improving the cleaning effect, ensuring that all impurities are cleaned up, and collecting the cleaned impurities through the first sealing plate, the first collection box, the second sealing plate and the second collection box provided on the outer shell, so that the hydraulic oil can always remain clean, avoiding impurities from affecting the hydraulic system and extending the service life of the pulse device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic sectional view of the overall structure of the present invention;

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

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

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

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

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

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

[0027] Figure 9 isFigure 8 Schematic enlarged view of the structure of part A;

[0028] In the figure: 1. Outer shell; 11. Low-pressure oil port; 12. Output port; 13. Filter tank; 14. Guide groove; 15. First sewage discharge tank; 151. First sealing plate; 152. First collection box; 153. Arc guide groove; 154. Guide block; 155. First scraper; 16. Second sewage discharge tank; 161. Second sealing plate; 162. Second collection box; 163. Second scraper; 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. First bracket; 52. First filter screen; 53. Connecting rod; 54. Driving ring; 6. Second filtering mechanism; 61. Second bracket; 62. Second filter screen; 63. Cleaning ring; 631. Support rod; 632. Guide ring; 633. Guide block; 7. Rotating shaft; 8. Guide mechanism; 81. Guide plate; 811. Card slot; 82. Push rod; 821. Card rod; 822. Card hole; 83. Driving mechanism; 831. Driving block; 832. Bidirectional telescopic rod; 833. Connecting block; 834. First T-shaped groove; 835. First T-shaped block; 84. Engaging mechanism; 841. Engaging rod; 842. Pressing block; 843. Second T-shaped block; 844. Second T-shaped groove. Detailed implementation mode

[0029] Please refer to Figures 1 to 9 In the embodiment of the present invention, a hydraulic pulse generator includes an outer shell 1, an end cover 2, a rotating disk 3, a pressing disk 4, a first filtering mechanism 5, a second filtering mechanism 6 and a rotating shaft 7. Among them, the outer shell 1 and the end cover 2 are fixedly connected by bolts. The rotating disk 3 is rotatably arranged in the outer shell 1 and is 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 them. A low-pressure oil port 11 and a plurality of output ports 12 are opened on the outer shell 1. A plurality of first through grooves 31 and a plurality of second through grooves 32 in a T shape are spaced apart on the rotating disk 3. The output ends of the first through grooves 31 and the second through grooves 32 are communicated with the plurality of output ports 12. The input end of the second through groove 32 is communicated with the low-pressure oil port 11. A high-pressure oil port 21 is opened on the end cover 2. A plurality of third through grooves 41 are opened on the pressing disk 4. The input end of the third through groove 41 is communicated with the high-pressure oil port 21, and the input end of the first through groove 31 can rotate to be communicated with the output end of the third through groove 41. A first filtering mechanism 5 is further arranged in the output port 12, and a second filtering mechanism 6 is arranged at the low-pressure oil port 11;

[0030] The first filtering mechanism 5 includes a first bracket 51 and a first filter net 52. Among them, the first bracket 51 is sealingly and rotatably arranged in the housing 1. The first bracket 51 is annular. A first filter net 52 is fixedly arranged on the first bracket 51. A plurality of connecting rods 53 are also fixedly arranged on the first bracket 51. The connecting rods 53 penetrate through the housing 1 and a driving ring 54 is fixedly arranged at the output end. The driving ring 54 is driven by the rotating shaft 7.

[0031] The second filtering mechanism 6 includes a second bracket 61, a second filter net 62 and a cleaning ring 63. Among them, the second bracket 61 is composed of two circular rings. An annular second filter net 62 is fixedly arranged on the inner sides of the two circular rings. A filtering groove 13 is formed in 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 attached to the second filter net 62. A plurality of L-shaped support rods 631 are fixedly arranged on the cleaning ring 63. The plurality of support rods 631 are sealingly and slidably connected with the rotating disc 3. The plurality of support rods 631 penetrate through the rotating disc 3 and a guiding ring 632 is fixedly arranged. A guiding block 633 is fixedly arranged on the guiding ring 632. Two guiding grooves 14 are formed in the housing 1. A communication port is arranged between the two guiding grooves 14. A guiding mechanism 8 is arranged at the communication port. The guiding block 633 can slide between the two guiding grooves 14 through the guiding mechanism 8.

[0032] It should be noted that the second bracket 61 itself has a height, that is, it can lift the second filter net 62 by a certain distance, so that the second filter net 62 does not directly contact the low-pressure oil port 11 and the second through groove 32. That is, the second filter net 62 can divide the filtering groove 13 into a filtering chamber and a clean chamber, further enabling impurities to be cleaned through the entire second filter net 62 rather than only being filtered at the outlet of the low-pressure oil port 11, further improving its filtering effect.

[0033] A first sewage discharge groove 15 and a second sewage discharge groove 16 are formed through the bottom of the housing 1. The first sewage discharge groove 15 is located below the first filtering mechanism 5. The second sewage discharge groove 16 is located below the second filtering mechanism 6. A first sealing plate 151 and a first collection box 152 are slidably arranged in the first sewage discharge groove 15. A second sealing plate 161 with the same structure as the first sealing plate 151 and a second collection box 162 with the same structure as the first collection box 152 are slidably arranged in the second sewage discharge groove 16.

[0034] The first sealing plate 151 is an arc-shaped plate. A conduction port having the same size as the first collection box 152 is formed on the first sealing plate 151. A stepped interface is further provided on the first sealing plate 151, and the first collection box 152 can be hermetically clamped into the interface;

[0035] An arc-shaped guide groove 153 is formed in the first sewage discharge groove 15. A spherical groove is formed at the end of the arc-shaped guide groove 153. A guide block 154 is fixedly provided on the first collection box 152. A spherical block is slidably provided on the guide block 154 through a fourth spring. The guide block 154 slides along the arc-shaped guide groove 153, and the spherical block can be clamped into the spherical groove;

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

[0037] During implementation, the rotation of the rotating shaft 7 drives the rotation of the rotating disk 3, causing the high-pressure oil port 21 and the low-pressure oil port 11 to alternately communicate with the output port 12, thereby generating a hydraulic pulse. During this process, the first filter screen 52 can filter the hydraulic oil flowing into the output port 12 and intercept impurities on the first filter screen 52. Moreover, the rotating shaft 7 will synchronously drive the first support 51 to rotate, thereby causing the first filter screen 52 to rotate. During the rotation, the first scraper 155 fits against the first filter screen 52, thereby scraping off the impurities intercepted on the first filter screen 52 and collecting them through the first collection box 152. The second filter screen 62 can filter the hydraulic oil flowing back from the low-pressure oil port 11 and intercept impurities on the second filter screen 62. Subsequently, the cleaning ring 63 will rotate together with the rotating disk 3, and during the rotation, the guiding block 633 will alternately slide along the two guiding grooves 14 under the action of the guiding mechanism 8, thereby enabling the cleaning ring 63 to slide back and forth along the surface of the second filter screen 62, pushing the impurities intercepted on the second filter screen 62 to both sides of the filter groove 13. Moreover, during the back-and-forth sliding process, the cleaning ring 63 will further fit against the second scraper 163, thereby cleaning the impurities on the cleaning ring 63 and collecting them through the second collection box 162. And the guiding mechanism 8 is arranged at the bottom of the guiding groove 14, so that the guiding block 633 will slide into the other guiding groove 14 only after rotating one circle along one of the guiding grooves 14, thereby enabling the cleaning ring 63 to rotate one circle when contacting the second scraper 163, further ensuring that the impurities on the cleaning ring 63 are completely cleaned, further improving the cleaning effect, enabling the hydraulic oil to maintain a clean state, and effectively cleaning the impurities generated inside the pulse housing 1, further reducing the wear of the internal components of the device, effectively improving its service life. In addition, through the design of the first sealing plate 151, the first collection box 152, the second sealing plate 162, and the second collection box 162, after the impurities have accumulated for a period of time, only by rotating and removing the first collection box 152 and the second collection box 162 can the impurities be cleaned, further improving its convenience.

[0038] In this embodiment, as Figure 8 and Figure 9 , the guiding mechanism 8 includes a guiding plate 81, a push rod 82, a driving mechanism 83, and a clamping mechanism 84. Among them, two guiding plates 81 are configured, and the two guiding plates 81 are respectively rotatably arranged in the two guiding grooves 14. Two card slots 811 are formed on the guiding plate 81. Two push rods 82 are slidably arranged on the housing 1. Two clamping rods 821 are fixedly arranged on the push rod 82, and the two clamping rods 821 are respectively inserted into the two card slots 811 on the same side of the two guiding 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 clamped with the clamping mechanism 84;

[0039] The driving mechanism 83 includes a driving block 831, a bidirectional telescopic rod 832 and a connecting block 833. Among them, the driving block 831 is slidably arranged on the housing 1 and a first 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 pushing surface. A first T-shaped groove 834 is obliquely formed on the driving block 831. The connecting block 833 is slidably arranged on the housing 1. A first T-shaped block 835 is fixedly arranged on one side of the connecting block 833 close to the driving block 831. The first T-shaped block 835 slides along the first T-shaped groove 834. The bidirectional telescopic rod 832 is rotatably arranged on the housing 1. One end of the bidirectional telescopic rod 832 is hinged to the push rod 82, and the other end is hinged to the connecting block 833;

[0040] The engaging mechanism 84 includes an engaging rod 841 and a pressing block 842. Among them, the engaging rod 841 is slidably arranged on the housing 1 and a second spring is arranged between the engaging rod 841 and the housing 1. A slope is arranged on one side of the engaging rod 841 close to the push rod 82. A bayonet 822 is formed on the push rod 82. The engaging rod 841 can be engaged into the bayonet 822. A second T-shaped block 843 is fixedly arranged on the engaging rod 841. The pressing block 842 is slidably arranged on the housing 1 and a third spring is arranged between the pressing block 842 and the housing 1. And the pressing block 842 protrudes from the housing 1 and is provided with an inclined pushing surface. A second T-shaped groove 844 is obliquely formed on the pressing block 842. The second T-shaped block 842 slides along the second T-shaped groove 844.

[0041] During implementation, the two guide plates 81 are in an inclined state in the initial state, and the guiding position deflects from the guide groove 14 on the side away from the pressing disc 4 to the guide groove 14 on the side close to the pressing disc 4. Subsequently, when the guide block 633 rotates to the bottom along the guide groove 14 on the side away from the pressing disc 4, the guide block 633 will be guided into the guide groove 14 on the side close to the pressing disc 4 under the action of the guide plate 81. After entering this guide groove 14, the guide block 633 will squeeze the driving block 831, causing the driving block 831 to slide downward, further causing the connecting block 833 to slide under the action of the T-shaped groove one 834 and the T-shaped block one 835, and driving the push rod 82 to slide through the double-acting 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, causing the engaging rod 841 to be inserted into 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. Subsequently, after the guide block 833 rotates one circle along this guide groove 14, it is re-guided to the guide groove 14 on the side away from the pressing disc 4 under the action of the guide plate 81. After entering this guide groove 14, the guide block 633 will squeeze the pressing block 842, causing the engaging rod 841 to slide out of the bayonet 822 under the action of the T-shaped groove two 844 and the T-shaped block two 843, thereby causing the driving block 831 to reset under the action of the first spring, and causing the push rod 82 to slide, further driving the guide plate 81 to rotate to the initial state. Subsequently, after the guide block 633 disengages from the pressing block 842, the pressing block 842 and the engaging rod 841 return to the initial state under the action of the third spring and the second spring respectively. Subsequently, this cycle is repeated, causing the guide block 633 to slide alternately along the two guide grooves 14, that is, realizing that the cleaning ring 63 slides back and forth along the filter net two 62 to clean the filter net two 62. During this process, no other external power needs to be introduced, and only by the rotation of the rotating disc 3 itself can the cleaning of the filter net two 62 by the cleaning ring 63 be realized, further improving its convenience.

[0042] In summary, in the present invention, the first filtering mechanism 5 can filter the hydraulic oil introduced into the output port 12, and the first scraper 155 can clean the impurities filtered on the first filter screen 52. The second filtering mechanism 6 can filter the hydraulic oil flowing back from the low-pressure oil port 11 to the fuel tank, and the reciprocating sliding of the cleaning ring 63 can clean the impurities filtered on the second filter screen 62. In addition, the second scraper 163 further cleans the impurities cleaned on the cleaning ring 63. Two guiding grooves 14 are formed on the housing 1, and a guiding mechanism 8 is provided, so that the cleaning ring 63 can alternately slide between the two guiding grooves 14 through the guiding mechanism 8, that is, the cleaning ring 63 can slide along the surface of the second filter screen 62 to clean the second filter screen 62. During the reciprocating and alternating sliding process, the cleaning ring 63 rotates one circle in one guiding groove 14 before turning into the other guiding groove 14, so that the second 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 collecting the cleaned impurities through the first sealing plate 151, the first collection box 152, the second sealing plate 161 and the second collection box 162 provided on the housing 1, so that the hydraulic oil can always remain clean, avoiding impurities from affecting the hydraulic system and extending the service life of the pulse device.

[0043] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A hydraulic pulse generator, characterized in that: It includes a housing (1), an end cover (2), a rotating disk (3), a pressing disk (4), a first filtering mechanism (5), a second filtering mechanism (6), and a rotating shaft (7). Among them, 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 is 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 them. A low-pressure oil port (11) and a plurality of output ports (12) are provided on the housing (1). A plurality of first through grooves (31) and a plurality of second through grooves (32) in a T shape are spaced apart on the rotating disk (3). The output ends of the first through grooves (31) and the second through grooves (32) are communicated with the plurality of output ports (12). The input end of the second through groove (32) is communicated with the low-pressure oil port (11). A high-pressure oil port (21) is provided on the end cover (2). A plurality of third through grooves (41) are provided on the pressing disk (4). The input ends of the third through grooves (41) are communicated with the high-pressure oil port (21), and the input end of the first through groove (31) can be rotated to be communicated with the output end of the third through groove (41). A first filtering mechanism (5) is further provided in the output port (12), and a second filtering mechanism (6) is provided at the low-pressure oil port (11); The first filtering mechanism (5) includes a first bracket (51) and a first filter screen (52). Among them, the first bracket (51) is rotatably arranged in the housing (1) in a sealed manner. The first bracket (51) is in a ring shape. A first filter screen (52) is fixedly arranged on the first bracket (51). A plurality of connecting rods (53) are also fixedly arranged on the first bracket (51). The connecting rods (53) penetrate through the housing (1) and a driving ring (54) is fixedly arranged at the output end. The driving ring (54) is driven by the rotating shaft (7); The second filtering mechanism (6) includes a second bracket (61), a second filter screen (62), and a cleaning ring (63). Among them, the second bracket (61) is composed of two circular rings, and an annular second filter screen (62) is fixedly arranged on the inner sides of the two circular rings. A filtering groove (13) is formed on the housing (1), and 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 attached to the second filter screen (62), and a plurality of L-shaped support rods (631) are fixedly arranged on the cleaning ring (63). The plurality of support rods (631) are in sealed sliding connection with the rotating disk (3), and the plurality of support rods (631) penetrate through the rotating disk (3) and are fixedly provided with a guiding ring (632). A guiding block (633) is fixedly arranged on the guiding ring (632). Two guiding grooves (14) are formed on the housing (1), and a communication port is arranged between the two guiding grooves (14). A guiding mechanism (8) is arranged at the communication port, and the guiding block (633) can slide between the two guiding grooves (14) through the guiding mechanism (8).

2. The hydraulic pulse generator according to claim 1, wherein: The guiding mechanism (8) includes a guiding plate (81), a push rod (82), a driving mechanism (83), and a clamping mechanism (84). Among them, two guiding plates (81) are provided, and the two guiding plates (81) are respectively rotatably arranged in the two guiding grooves (14). Two clamping grooves (811) are formed on the guiding plate (81). Two push rods (82) are slidably arranged on the housing (1), and two clamping rods (821) are fixedly arranged on the push rods (82). The two clamping rods (821) are respectively clamped into two clamping grooves (811) on the same side of the two guiding 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 clamped with the clamping mechanism (84).

3. The hydraulic pulse generator according to claim 2, wherein: The driving mechanism (83) includes a driving block (831), a bidirectional telescopic rod (832), and a connecting block (833). Among them, the driving block (831) is slidably arranged on the housing (1) and a first 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 pushing surface. A first T-shaped groove (834) is obliquely formed on the driving block (831). The connecting block (833) is slidably arranged on the housing (1), and a first T-shaped block (835) is fixedly arranged on the side of the connecting block (833) close to the driving block (831). The first T-shaped block (835) slides along the first T-shaped groove (834). The bidirectional telescopic rod (832) is rotatably arranged on the housing (1), one end of the bidirectional telescopic rod (832) is hinged to the push rod (82), and the other end is hinged to the connecting block (833).

4. A hydraulic pulse generator according to claim 2, wherein: The engaging mechanism (84) includes an engaging rod (841) and a pressing block (842). Among them, the engaging rod (841) is slidably arranged on the housing (1) and a second spring is arranged between the engaging rod (841) and the housing (1). One side of the engaging rod (841) close to the push rod (82) is provided with an inclined surface. A bayonet (822) is formed on the push rod (82). The engaging rod (841) can be engaged into the bayonet (822). A second T-shaped block (843) is fixedly arranged on the engaging rod (841). The pressing block (842) is slidably arranged on the housing (1) and a third spring is arranged between the pressing block (842) and the housing (1). And the pressing block (842) protrudes from the housing (1) and is provided with an inclined pushing surface. A second T-shaped groove (844) is obliquely formed on the pressing block (842). The second T-shaped block (842) slides along the second T-shaped groove (844).

5. A hydraulic pulse generator according to claim 1, wherein: A first sewage discharge groove (15) and a second sewage discharge groove (16) are formed through the bottom of the housing (1). The first sewage discharge groove (15) is located below the first filtering mechanism (5). The second sewage discharge groove (16) is located below the second filtering mechanism (6). A first sealing plate (151) and a first collection box (152) are slidably arranged in the first sewage discharge groove (15). A second sealing plate (161) having the same structure as the first sealing plate (151) and a second collection box (162) having the same structure as the first collection box (152) are slidably arranged in the second sewage discharge groove (16).

6. The hydraulic pulse generator according to claim 5, wherein: The first sealing plate (151) is an arc-shaped plate. A conduction port having the same size as the first collection box (152) is formed on the first sealing plate (151). A stepped interface is further arranged on the first sealing plate (151). The first collection box (152) can be hermetically engaged into the interface. An arc-shaped guide groove (153) is formed in the first sewage discharge groove (15). A spherical groove is formed at the end of the arc-shaped guide groove (153). A guide block (154) is fixedly arranged on the first collection box (152). A spherical block is slidably arranged on the guide block (154) through a fourth spring. The guide block (154) slides along the arc-shaped guide groove (153). And the spherical block can be engaged into the spherical groove.

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

Images