Cylinder body assembly of oil distribution disc of hydraulic pump

Abstract

The invention belongs to the technical field of hydraulic pumps, and particularly relates to a hydraulic pump oil distribution disc cylinder body assembly which comprises a hydraulic pump assembly. The front cylinder body assembly is detachably installed at the front end of the hydraulic pump assembly, the centrifugal buffering mechanism is installed in the hydraulic pump assembly and used for conducting centrifugal buffering on injected oil, the front end of the hydraulic pump assembly is connected with the rear end of the outer sealing mechanism, and the front end of the outer sealing mechanism is connected with the rear end of the interior of the front cylinder body assembly. A pressure reducing mechanism is installed at the front end of the interior of the front cylinder assembly, the rear end of the pressure reducing mechanism communicates with the interior of the outer sealing mechanism, and the pressure reducing mechanism is used for reducing the pressure of entering oil. According to the invention, the instantaneous pressure of oil liquid can be reduced, the problem of eccentric wear caused by single-side stress of a traditional buffer structure can be avoided, and meanwhile, the cavitation phenomenon can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic pumps, in particular to an oil distribution plate cylinder assembly of a hydraulic pump. Background Art

[0002] As the core power element of hydraulic systems, the performance of the hydraulic pump's oil distribution plate and cylinder assembly directly impacts the system's stability, efficiency, and service life. Hydraulic pumps are widely used in engineering machinery, metallurgical equipment, aerospace, and other fields. These oil distribution plate and cylinder assembly must achieve efficient oil distribution, pressure buffering, and sealing control under high pressure, high-frequency impact, and complex operating conditions. This places extremely high demands on the design of the buffer mechanism, sealing structure, and pressure relief system.

[0003] In the existing technology, the traditional hydraulic pump oil distribution plate cylinder assembly mainly has the following technical defects:

[0004] 1. Inadequate buffering mechanism: Most systems utilize fixed buffer tanks or spring damping structures, which can only handle shocks within a specific flow range. For example, spring dampers have slow response speeds and are prone to fatigue failure under high-frequency shocks. Fixed buffer tanks significantly reduce their buffering effectiveness at low flow rates and are unable to convert fluid kinetic energy into mechanical energy, resulting in high instantaneous pressure peaks, which can easily cause eccentric wear of the valve plate and cylinder vibration.

[0005] 2. Insufficient force balance: The valve plate is susceptible to unilateral hydraulic pressure during oil suction and discharge. Traditional structures rely on external balancing valves or complex support mechanisms to maintain stability, resulting in bloated structures and delayed response. Long-term unilateral force can easily cause the valve plate to tilt, exacerbating wear on sealing components and shortening equipment maintenance cycles.

[0006] For this purpose, we propose a hydraulic pump oil distribution plate cylinder assembly. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] The hydraulic pump oil distribution plate cylinder assembly comprises: a hydraulic pump assembly;

[0009] The front end of the hydraulic pump assembly is detachably mounted with a front cylinder assembly, and a centrifugal buffer mechanism is installed inside the hydraulic pump assembly. The centrifugal buffer mechanism is used to centrifugally buffer the injected oil. The front end of the hydraulic pump assembly is connected to the rear end of the external sealing mechanism, and the front end of the external sealing mechanism is connected to the rear end of the interior of the front cylinder assembly. A pressure reducing mechanism is installed at the front end of the interior of the front cylinder assembly, and the rear end of the pressure reducing mechanism is connected to the interior of the external sealing mechanism. The pressure reducing mechanism is used to reduce the pressure of the incoming oil.

[0010] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, the hydraulic pump assembly includes: a hydraulic pump body;

[0011] A first mounting flange is provided at the front end of the hydraulic pump body, and a first sealing assembly is installed at the front end of the first mounting flange.

[0012] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the first sealing assembly includes: a U-shaped sealing ring;

[0013] The rear end of the U-shaped sealing ring is connected to the inner side of the front end of the first mounting flange. Both ends of the outer wall of the U-shaped sealing ring are provided with convex rings. The middle of the U-shaped sealing ring is connected to a T-shaped sealing ring.

[0014] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the front cylinder assembly includes: a front cylinder;

[0015] The front cylinder body is installed at the front end of the first mounting flange in the hydraulic pump assembly by bolts. A placement plate is installed at the front end of the front cylinder body, a connecting plate is installed at the center of the placement plate, a placement groove is provided at the rear end of the placement plate, and a retaining ring is provided at the inner rear end of the front cylinder body.

[0016] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the centrifugal buffer mechanism includes: a distribution plate assembly;

[0017] The distribution plate assembly is installed inside the first mounting flange, the rear end of the distribution plate assembly is connected to the front end of the first sealing assembly, the front end center of the distribution plate assembly is connected to the rear end of the centrifugal buffer assembly, and the front end of the centrifugal buffer assembly is connected to the rear end center of the decompression mechanism.

[0018] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the distribution plate assembly includes: a distribution plate;

[0019] The distribution plate is placed inside the first mounting flange, a first slide groove is provided on the outer side of the front end surface of the distribution plate, a second slide groove is provided on the inner side of the front end surface of the distribution plate, and a sealing groove is provided on the rear end of the distribution plate, which is connected to the first sealing assembly;

[0020] The centrifugal buffer assembly includes: a pillar;

[0021] The rear end of the pillar is installed at the front end center of the distribution plate, and the front end of the pillar is installed at the rear end center of the pressure reducing mechanism. The outer wall of the pillar is movably connected to the rotating drum. The front end of the outer wall of the rotating drum is rotated around and connected to the lower end of the first strut. The upper end of the first strut is rotated and connected to the first slider. The first slider is slidably connected to the inside of the first slide groove. The rear end of the outer wall of the rotating drum is rotated around and connected to the second strut. The upper end of the second strut is rotated and connected to the second slider. The second slider is slidably connected to the inside of the second slide groove. The outer wall of the rotating drum is fixedly installed with a spiral disk.

[0022] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the external sealing mechanism includes: a sealing ring;

[0023] The right end of the sealing ring is installed on the front end surface of the first mounting flange, the left end of the sealing ring contacts the rear end of the retaining ring in the front cylinder assembly, and the second sealing assembly is installed inside the sealing ring, and the rear end of the second sealing assembly contacts the front end of the distribution plate.

[0024] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, the second sealing assembly includes: a sealing strip;

[0025] The sealing strips are installed at the front and rear ends of the inner wall of the sealing ring. Arc-shaped sealing rings are installed between the sealing strips. The arc-shaped sealing rings are arranged in an arc shape. An extrusion strip is provided at the rear end of the arc-shaped sealing ring. The rear end of the extrusion strip contacts the front end of the distribution plate.

[0026] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, the pressure reducing mechanism includes: a flow dividing assembly;

[0027] The diverter assembly is installed in the middle of the front cylinder body, the front end of the diverter assembly is detachably mounted with a decompression assembly, and the front end of the decompression assembly is installed in the placement groove.

[0028] As a preferred solution of the hydraulic pump oil distribution plate cylinder assembly of the present invention, wherein: the diverter assembly includes: a diverter plate;

[0029] The diverter disc is installed in the middle of the cylinder body, the rear end of the diverter disc contacts the front end of the retaining ring, the surface of the diverter disc is provided with diverter grooves around, the inner side of the surface of the diverter disc is provided with a first threaded disc, and the outer side of the surface of the diverter disc is provided with a second threaded disc, and the first threaded disc and the second threaded disc are both connected to the rear end of the pressure reducing assembly;

[0030] The decompression assembly includes: a first spiral cone;

[0031] The rear end of the first spiral cone is connected to the thread of the second threaded disk, the front end of the first spiral cone is installed inside the placement groove, the second spiral cone is provided inside the first spiral cone, the rear end of the second spiral cone is threadedly connected to the first threaded disk, the front end of the second spiral cone is connected to the rear end of the connecting disk, shear columns are provided around the outer wall of the second spiral cone, and the connecting disk is connected to the distance between the first spiral cone and the second spiral cone.

[0032] Compared with existing technologies:

[0033] Through the structural design of the centrifugal buffer assembly, when the oil flows in at high speed, the spiral disk is rotated by the impact of the fluid, driving the first strut and the second strut to slide in the first chute and the second chute of the distribution disk, forming a centrifugal stirring effect, thereby converting the linear impact kinetic energy of the fluid into the rotational mechanical energy of the spiral disk, thereby reducing the instantaneous pressure of the oil, and the distribution disk is evenly stressed by the sliding of the strut, avoiding the eccentric wear problem caused by unilateral force in the traditional buffer structure. At the same time, the speed of the spiral disk is automatically adjusted with the flow rate, and a stable buffering effect can be maintained within a certain flow range.

[0034] The oil can be evenly dispersed through the diverter grooves on the surface of the diverter plate in the pressure reducing mechanism, and then a variable diameter channel is formed through the first spiral cone and the second spiral cone. The oil is damped by the shear column during the spiral flow, and the channel volume gradually expands to achieve pressure reduction. The spiral shearing effect can reduce the oil flow velocity gradient, effectively avoiding cavitation.

[0035] Through the linkage design of the arc-shaped sealing ring and the extrusion strip of the external sealing mechanism, reverse pressure is automatically generated when the oil flows, balancing the forces on both sides of the distribution plate, thereby avoiding the cylinder tilt caused by unilateral force in the traditional structure. The reverse compensation force can offset the instantaneous impact force of the oil and improve the fatigue life of key components. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0037] Figure 2 A schematic diagram of the overall split structure provided by the present invention;

[0038] Figure 3 A schematic structural diagram of a hydraulic pump assembly provided by the present invention;

[0039] Figure 4 A schematic diagram of the first mounting flange structure provided by the present invention;

[0040] Figure 5 A schematic diagram of the disassembled cross-sectional structure of the first sealing assembly provided by the present invention;

[0041] Figure 6 A schematic cross-sectional view of the front cylinder assembly provided by the present invention;

[0042] Figure 7 Schematic diagram of the front cylinder assembly structure provided by the present invention Figure 1 ;

[0043] Figure 8 Schematic diagram of the front cylinder assembly structure provided by the present invention Figure 2 ;

[0044] Figure 9A schematic diagram of the connection structure of the centrifugal buffer mechanism provided by the present invention;

[0045] Figure 10 Schematic diagram of the structure of the distribution plate assembly provided by the present invention Figure 1 ;

[0046] Figure 11 Schematic diagram of the structure of the distribution plate assembly provided by the present invention Figure 2 ;

[0047] Figure 12 A schematic diagram of the connection structure of the centrifugal buffer assembly provided by the present invention;

[0048] Figure 13 This is a schematic diagram of the disassembled structure of the centrifugal buffer assembly provided by the present invention;

[0049] Figure 14 A schematic structural diagram of a centrifugal buffer assembly provided by the present invention;

[0050] Figure 15 A schematic diagram of the spiral disk structure provided by the present invention;

[0051] Figure 16 This is a schematic diagram of the disassembled structure of the outer sealing mechanism provided by the present invention;

[0052] Figure 17 A schematic cross-sectional structure diagram of a second sealing assembly provided by the present invention;

[0053] Figure 18 A schematic diagram of the structure of the pressure reducing mechanism provided by the present invention;

[0054] Figure 19 Schematic diagram of the diversion component structure provided by the present invention Figure 1 ;

[0055] Figure 20 Schematic diagram of the diversion component structure provided by the present invention Figure 2 ;

[0056] Figure 21 Schematic diagram of the decompression assembly structure provided by the present invention Figure 1 ;

[0057] Figure 22 Schematic diagram of the decompression assembly structure provided by the present invention Figure 2 . DETAILED DESCRIPTION

[0058] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0059] The present invention provides a hydraulic pump oil distribution plate cylinder assembly, please refer to Figure 1-Figure 22, including a hydraulic pump assembly 1, a front cylinder assembly 2, a centrifugal buffer mechanism 3, an external sealing mechanism 4 and a pressure reducing mechanism 5;

[0060] The hydraulic pump assembly 1 includes: a hydraulic pump body 11, a first mounting flange 12, a first sealing assembly 13, a U-shaped sealing ring 131, a convex ring 132 and a T-shaped sealing ring 133; the front end of the hydraulic pump body 11 is provided with a first mounting flange 12, and the front end of the first mounting flange 12 is installed with a first sealing assembly 13, through which the distribution plate 31 in the centrifugal buffer mechanism 3 can be sealed and squeezed, thereby increasing the sealing performance around the distribution plate 31 to prevent oil overflow, the rear end of the U-shaped sealing ring 131 is connected to the inner side of the front end of the first mounting flange 12, and the outer wall of the U-shaped sealing ring 131 is provided with convex rings 132 at both ends, and the U-shaped sealing ring 131 and the convex ring 132 are inserted into the sealing groove 314 in the distribution plate 31 The U-shaped sealing ring 131 is connected to the middle of the T-shaped sealing ring 133, and the first sealing assembly 13 is squeezed by the distribution plate 31. At this time, the two sides of the U-shaped sealing ring 131 are squeezed toward the inner wall of the sealing groove 314. At the same time, the U-shaped sealing ring 131 will force the T-shaped sealing ring 133 to be squeezed toward the front end, so that the T-shaped sealing ring 133 and the U-shaped sealing ring 131 are deformed, squeezed and filled with the sealing groove 314, thereby achieving the effect of increasing the sealing performance after being pressurized. At the same time, it can disperse the pressure of the distribution plate 31, so that the pressure of the distribution plate 31 is buffered. Since the plunger in the hydraulic pump body 11 is not within the scope of protection of this application, the plunger structure in the hydraulic pump body 11 is not described and drawn in detail;

[0061] The front cylinder assembly 2 can be detachably mounted on the front end of the hydraulic pump assembly 1. The front cylinder assembly 2 includes: a front cylinder 21, a placement plate 22, a connecting plate 23, a placement groove 24 and a retaining ring 25. The front cylinder 21 is mounted on the front end of the first mounting flange 12 in the hydraulic pump assembly 1 by bolts. The front cylinder 21 can install and place the centrifugal buffer mechanism 3, the external sealing mechanism 4 and the pressure reducing mechanism 5. A placement plate 22 is mounted on the front end of the front cylinder 21, a connecting plate 23 is mounted on the center of the placement plate 22, and a placement groove 24 is provided at the rear end of the placement plate 22. The placement groove 24 can support the front end of the pressure reducing mechanism 5. A retaining ring 25 is provided on the inner rear end of the front cylinder 21, and the retaining ring 25 cooperates with the first mounting flange 12 to press and fix the external sealing mechanism 4.

[0062] The centrifugal buffer mechanism 3 is installed inside the hydraulic pump assembly 1. The centrifugal buffer mechanism 3 is used to centrifugally buffer the injected oil. The centrifugal buffer mechanism 3 includes: a distribution plate assembly 31, a distribution plate 311, a first chute 312, a second chute 313, a sealing groove 314, a centrifugal buffer assembly 32, a pillar 321, a rotating drum 322, a first support rod 323, a first slider 324, a second support rod 325, a second slider 326 and a spiral plate 327; the distribution plate assembly 31 is installed inside the first mounting flange 12, the rear end of the distribution plate assembly 31 is connected to the front end of the first sealing assembly 13, the distribution plate 311 is placed inside the first mounting flange 12, and the outer side of the front end surface of the distribution plate 311 is provided with a first chute 312. The distribution plate 311 The cam 314 is provided with a first sealing groove 314 at the inner side of the front end surface of the cam 315, and a sealing groove 314 is provided at the rear end of the cam 315. The sealing groove 314 is connected to the first sealing component 13, and the cam 315 is pressurized by the oil. The cam 315 applies pressure to the first sealing component 13 at the rear end. At this time, the first sealing component 13 ductilely squeezes the sealing groove 314 so that the first sealing component 13 fills the sealing groove 314, thereby enhancing the sealing performance and reducing the impact of the oil on the cam 315. The front end center of the cam assembly 31 is connected to the rear end of the centrifugal buffer assembly 32, and the front end of the centrifugal buffer assembly 32 is connected to the rear end center of the decompression mechanism 5. Through the cooperation of the centrifugal buffer assembly 32 and the cam assembly 31, when the hydraulic pump body 11 is pre-started, the oil is When the front end flows into one side of the distribution plate assembly 31 until it enters the interior of the hydraulic pump body 11, the flow potential energy of the oil will drive the centrifugal buffer assembly 32 to press toward the rear end, and at the same time drive the centrifugal buffer assembly 32 to rotate, so that the centrifugal buffer assembly 32 drives the flowing oil to perform centrifugal agitation, thereby reducing the impact of the oil on the distribution plate assembly 31. The rear end of the pillar 321 is installed at the front end center of the distribution plate 311, and the front end of the pillar 321 is installed at the rear end center of the pressure reducing mechanism 5. The outer wall of the pillar 321 is movably connected to the rotating drum 322, and the rotating drum 322 can slide and rotate on the outer wall of the pillar 321. The front end of the outer wall of the rotating drum 322 is rotatably connected to the lower end of the first support rod 323, and the upper end of the first support rod 323 is rotatably connected to the first slider 324. The first slider 324 is slidably connected to the inside of the first slide groove 312. The rear end of the first slider 324 is installed with a ball to reduce the friction generated during sliding. Through the cooperation of the ball and oil, the rotating drum 322 can smoothly drive the first support rod 323 to rotate. The rear end of the outer wall of the rotating drum 322 is rotatably connected to the second support rod 325. The upper end of the second support rod 325 is rotatably connected to the second slider 326. The second slider 326 is slidably connected to the inside of the second slide groove 313. The structure of the second slide groove 313 is the same as that of the first slider 324. A spiral disk 327 is fixedly installed on the outer wall of the rotating drum 322. The spiral disk 327 is spiral-shaped. Blades are provided on the surface of the spiral disk 327, and notches are provided around the middle part of the spiral disk 327. Through the notches,The second support rod 325 can smoothly realize rigid extrusion. When the hydraulic pump body 11 is pre-started, the oil enters the front end of the distribution plate 311 through the pressure reducing mechanism 5. The distribution plate 311 has an oil suction port on one side and an oil discharge port on the other side. When the distribution plate 311 is in the oil suction state, the oil at the front end of the distribution plate 311 flows rapidly in an inclined manner, so that the oil quickly enters the oil suction port of the distribution plate 311. At this time, the flow potential energy of the oil will tilt and pressurize the spiral plate 327. Due to the spiral design of the spiral plate 327, the rapid flow The oil will drive the spiral plate 327 to apply pressure to the rear end while driving the spiral plate 327 to rotate, so that the first support rod 323 and the second support rod 325 can rigidly apply pressure to the distribution plate 311. At the same time, the rotation of the first support rod 323 and the second support rod 325 can balance the pressure originally applied to one side, so that the distribution plate 311 is evenly stressed. The rotation of the first support rod 323 and the second support rod 325 can drive the oil to be centrifugally stirred, thereby reducing the impact of the oil on the distribution plate 311.

[0063] The rear end of the outer sealing mechanism 4 is connected to the front end of the hydraulic pump assembly 1, and the front end of the outer sealing mechanism 4 is connected to the inner rear end of the front cylinder assembly 2. The outer sealing mechanism 4 is used to seal the oil entering the centrifugal buffer mechanism 3 to prevent oil overflow. At the same time, the outer sealing mechanism 4 cooperates with the flow of oil to seal and extrude one side of the centrifugal buffer mechanism 3. The outer sealing mechanism 4 includes: a sealing ring 41, a second sealing assembly 42, a sealing strip 421, an arc-shaped sealing ring 422 and an extrusion strip 423; the right end of the sealing ring 41 is installed on the front end surface of the first mounting flange 12, and the left end of the sealing ring 41 contacts the rear end of the retaining ring 25 in the front cylinder assembly 2, so that the retaining ring 25 presses and fixes the sealing ring 41, and the second sealing assembly 42 is installed inside the sealing ring 41. The rear end of the second sealing assembly 42 contacts the front end of the distribution plate 311, and the second sealing assembly 42 can reversely compensate for the force applied to the distribution plate 311. The sealing strip 421 is installed at the front and rear ends of the inner wall of the sealing ring 41. An arc-shaped sealing ring 422 is installed between the sealing strips 421. The arc-shaped sealing ring 422 is arranged in an arc shape. The rear end of the arc-shaped sealing ring 422 is provided with an extrusion strip 423. The rear end of the extrusion strip 423 contacts the front end of the distribution plate 311, and the distribution plate 311 is toughly squeezed through the rear end of the extrusion strip 423. When the oil is sucked into the oil suction port on one side of the distribution plate 311, the oil flows quickly to one side. At this time, the oil will squeeze one side of the arc-shaped sealing ring 422. Under the action of the arc-shaped sealing ring 422, the compressed side of the arc-shaped sealing ring 422 will pull the other side. At this time, the extrusion strip 423 on the other side will pressurize the other side of the oil suction port of the distribution plate 311, thereby realizing reverse pressure compensation for the distribution plate 311.

[0064] The pressure reducing mechanism 5 is installed at the front end of the interior of the front cylinder assembly 2, and the rear end of the pressure reducing mechanism 5 is connected to the interior of the outer sealing mechanism 4. The pressure reducing mechanism 5 is used to reduce the pressure of the incoming oil, so that the interior of the pressure reducing mechanism 5 increases the damping through the shearing effect, thereby making the pressure rise smoother. The pressure reducing mechanism 5 includes: a diverter assembly 51, a diverter plate 511, a diverter groove 512, a first threaded plate 513, a second threaded plate 514, a pressure reducing assembly 52, a first spiral cone 521, a second spiral cone 522 and a shear column 523; the diverter assembly 51 is installed in the middle of the interior of the front cylinder 21, and the diverter assembly 51 is used to divert the incoming oil to achieve the diversion of the impact force of the oil. The diverter disc 511 is installed in the middle of the interior of the cylinder body 21, and the rear end of the diverter disc 511 contacts the front end of the retaining ring 25. The surface of the diverter disc 511 is provided with diverter grooves 512 around it, and the incoming oil can be diverted through the diverter grooves 512. The surface of the diverter disc 511 is provided with a first threaded disc 513 on the inside, and a second threaded disc 514 on the outside of the surface of the diverter disc 511. The first threaded disc 513 and the second threaded disc 514 are both connected to the rear end of the pressure reducing assembly 52, so that the first threaded disc 513 and the second threaded disc 514 fix the installation of the pressure reducing assembly 52. ​​The front end of the diverter assembly 51 is detachably installed with the pressure reducing assembly 52. ​​The pressure reducing assembly The front end of 52 is installed in the placement groove 24, and the diverter assembly 51 can be pressed and fixed by the decompression assembly 52. ​​At the same time, the decompression assembly 52 can provide shear resistance to the incoming oil, so that the pressure rise in the hydraulic pump assembly 1 is smoother. The rear end of the first spiral cone 521 is threadedly connected to the second threaded disk 514. The front end of the first spiral cone 521 is installed in the placement groove 24. The interior of the first spiral cone 521 is provided with a second spiral cone 522. The rear end of the second spiral cone 522 is threadedly connected to the first threaded disk 513. The front end of the second spiral cone 522 is connected to the rear end of the connecting disk 23. The outer wall of the second spiral cone 522 is provided with a shear The shear column 523 and the connecting plate 23 are connected with the channel between the first spiral cone 521 and the second spiral cone 522. When the hydraulic pump body 11 is pre-started, the oil enters the channel between the first spiral cone 521 and the second spiral cone 522, and is sheared by the shear column 523. Then, the oil flows from the fine diameter into the coarse diameter through the design of the first spiral cone 521 and the second spiral cone 522 with gradually increasing diameter from front to back. At the same time, after the spiral shearing operation is performed in the channel between the first spiral cone 521 and the second spiral cone 522, multi-stage buffering is realized. At the same time, the channel between the first spiral cone 521 and the second spiral cone 522 can store the oil.

[0065] During specific use, those skilled in the art connect the front end of the front cylinder assembly 2 to the oil inlet pipe. When the hydraulic pump assembly 1 is pre-started, the oil in the oil inlet pipe will enter the channel between the first spiral cone 521 and the second spiral cone 522 through the connecting disk 23. Through the design of the first spiral cone 521 and the second spiral cone 522, the oil will flow in a spiral manner along the inner wall of the first spiral cone 521 and the outer wall of the second spiral cone 522. During the spiral flow, the oil is sheared by the shear column 523 on the outer wall of the second spiral cone 522, thereby reducing the impact force of the oil during pre-start. After the oil passes through the channel between the first spiral cone 521 and the second spiral cone 522, it is diverted by the diverter disk 511 and enters the interior of the outer sealing mechanism 4. When the hydraulic pump assembly 1 is pre-started, the oil in the oil inlet pipe will enter the channel between the first spiral cone 521 and the second spiral cone 522 through the connecting disk 23. When the plunger of component 1 performs the oil suction operation again, the oil suction port on one side of the distribution plate 311 surface will absorb the oil, and the oil entering the interior of the outer sealing mechanism 4 will flow quickly to one side. At this time, the outer sealing mechanism 4 will perform reverse pressure compensation on the diverter plate 511, and press the diverter plate 511 in the reverse direction. When the oil passes through the spiral plate 327 of the centrifugal buffer assembly 32, it will apply pressure to the spiral plate 327 backward while driving the spiral plate 327 to rotate, so that the spiral plate 327 drives the first support rod 323 and the second support rod 325 to rotate, so that the first support rod 323 and the second support rod 325 perform centrifugal buffering on the oil, and again reduce the impact force of the oil on the distribution plate 311, so that the oil can smoothly enter the interior of the hydraulic pump assembly 1.

[0066] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. Hydraulic pump oil distribution plate cylinder assembly, including: A hydraulic pump assembly, characterized in that: The front end of the hydraulic pump assembly is detachably mounted with a front cylinder assembly, and a centrifugal buffer mechanism is installed inside the hydraulic pump assembly. The centrifugal buffer mechanism is used to centrifugally buffer the injected oil. The front end of the hydraulic pump assembly is connected to the rear end of the external sealing mechanism, and the front end of the external sealing mechanism is connected to the rear end of the interior of the front cylinder assembly. A pressure reducing mechanism is installed at the front end of the interior of the front cylinder assembly, and the rear end of the pressure reducing mechanism is connected to the interior of the external sealing mechanism. The pressure reducing mechanism is used to reduce the pressure of the incoming oil.

2. The hydraulic pump oil distribution plate cylinder assembly according to claim 1, characterized in that: The hydraulic pump assembly includes: a hydraulic pump body; A first mounting flange is provided at the front end of the hydraulic pump body, and a first sealing assembly is installed at the front end of the first mounting flange.

3. The hydraulic pump oil distribution plate cylinder assembly according to claim 2, characterized in that: The first sealing assembly includes: a U-shaped sealing ring; The rear end of the U-shaped sealing ring is connected to the inner side of the front end of the first mounting flange. Both ends of the outer wall of the U-shaped sealing ring are provided with convex rings. The middle of the U-shaped sealing ring is connected to a T-shaped sealing ring.

4. The hydraulic pump oil distribution plate cylinder assembly according to claim 3, characterized in that: The front cylinder assembly includes: a front cylinder; The front cylinder body is installed at the front end of the first mounting flange in the hydraulic pump assembly by bolts. A placement plate is installed at the front end of the front cylinder body, a connecting plate is installed at the center of the placement plate, a placement groove is provided at the rear end of the placement plate, and a retaining ring is provided at the inner rear end of the front cylinder body.

5. The hydraulic pump oil distribution plate cylinder assembly according to claim 4, characterized in that: The centrifugal buffer mechanism includes: a distribution plate assembly; The distribution plate assembly is installed inside the first mounting flange, the rear end of the distribution plate assembly is connected to the front end of the first sealing assembly, the front end center of the distribution plate assembly is connected to the rear end of the centrifugal buffer assembly, and the front end of the centrifugal buffer assembly is connected to the rear end center of the decompression mechanism.

6. The hydraulic pump oil distribution plate cylinder assembly according to claim 5, characterized in that: The distribution plate assembly includes: a distribution plate; The distribution plate is placed inside the first mounting flange, a first slide groove is provided on the outer side of the front end surface of the distribution plate, a second slide groove is provided on the inner side of the front end surface of the distribution plate, and a sealing groove is provided on the rear end of the distribution plate, which is connected to the first sealing assembly; The centrifugal buffer assembly includes: a pillar; The rear end of the pillar is installed at the front end center of the distribution plate, and the front end of the pillar is installed at the rear end center of the pressure reducing mechanism. The outer wall of the pillar is movably connected to the rotating drum. The front end of the outer wall of the rotating drum is rotated around and connected to the lower end of the first strut. The upper end of the first strut is rotated and connected to the first slider. The first slider is slidably connected to the inside of the first slide groove. The rear end of the outer wall of the rotating drum is rotated around and connected to the second strut. The upper end of the second strut is rotated and connected to the second slider. The second slider is slidably connected to the inside of the second slide groove. The outer wall of the rotating drum is fixedly installed with a spiral disk.

7. The hydraulic pump oil distribution plate cylinder assembly according to claim 6, characterized in that: The external sealing mechanism includes: a sealing ring; The right end of the sealing ring is installed on the front end surface of the first mounting flange, the left end of the sealing ring contacts the rear end of the retaining ring in the front cylinder assembly, and the second sealing assembly is installed inside the sealing ring, and the rear end of the second sealing assembly contacts the front end of the distribution plate.

8. The hydraulic pump oil distribution plate cylinder assembly according to claim 7, characterized in that: The second sealing assembly includes: a sealing strip; The sealing strips are installed at the front and rear ends of the inner wall of the sealing ring. Arc-shaped sealing rings are installed between the sealing strips. The arc-shaped sealing rings are arranged in an arc shape. An extrusion strip is provided at the rear end of the arc-shaped sealing ring. The rear end of the extrusion strip contacts the front end of the distribution plate.

9. The hydraulic pump oil distribution plate cylinder assembly according to claim 8, characterized in that: The pressure reducing mechanism includes: a diversion component; The diverter assembly is installed in the middle of the front cylinder body, the front end of the diverter assembly is detachably mounted with a decompression assembly, and the front end of the decompression assembly is installed in the placement groove.

10. The hydraulic pump oil distribution plate cylinder assembly according to claim 9, characterized in that: The diverter assembly includes: a diverter plate; The diverter disc is installed in the middle of the cylinder body, the rear end of the diverter disc contacts the front end of the retaining ring, the surface of the diverter disc is provided with diverter grooves around, the inner side of the surface of the diverter disc is provided with a first threaded disc, the outer side of the surface of the diverter disc is provided with a second threaded disc, and the first threaded disc and the second threaded disc are both connected to the rear end of the pressure reducing assembly; The decompression assembly includes: a first spiral cone; The rear end of the first spiral cone is connected to the thread of the second threaded disk, the front end of the first spiral cone is installed inside the placement groove, the second spiral cone is provided inside the first spiral cone, the rear end of the second spiral cone is threadedly connected to the first threaded disk, the front end of the second spiral cone is connected to the rear end of the connecting disk, shear columns are provided around the outer wall of the second spiral cone, and the connecting disk is connected to the distance between the first spiral cone and the second spiral cone.

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