Fluid rotating pressure supply mechanism

Abstract

The invention relates to a fluid rotary pressure supply mechanism. The technical problem that leakage is prone to occurring in the rotary pressure supply process of existing pressure supply equipment is solved. Comprising a fixed pressure supply seat, a mounting channel axially penetrating through the two ends of the fixed pressure supply seat is arranged in the fixed pressure supply seat, a pressure supply rod is rotationally arranged in the mounting channel in a penetrating mode, and at least one pressure supply inlet and outlet hole radially and inwards extending into the mounting channel is formed in the fixed pressure supply seat; one end of the pressure supply channel communicates with the pressure supply inlet and outlet hole, the other end of the pressure supply channel extends to the end of the pressure supply rod, and a Tesla valve one-way sealing structure is arranged between the circumferential outer side of the pressure supply rod and the circumferential inner side of the mounting channel. The one-way sealing structure of the Tesla valve has the advantages that the structure is simple, and the sealing effect of the pressure supply inlet and outlet hole on the pressure supply rod in the fluid conveying process can be guaranteed. The rotation stability of the rod body columnar part can be improved through the angular contact bearing, and the rotation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rotary pressure supply equipment, and in particular relates to a fluid rotary pressure supply mechanism. Background Art

[0002] In order to maintain the pressure during use, the rotary pressure supply equipment needs to be continuously supplied with pressure, and in order to ensure the pressure supply effect, the rotary pressure supply equipment needs to be supplied with pressure during the rotation of the rotary pressure supply equipment, and it can be applied to a rotary joint or a turret; however, the existing rotary pressure supply equipment is mostly sealed by a sealing ring or a mechanical sealing method during the rotary pressure supply process, wherein the service life of the sealing ring will be reduced during the rotation process, affecting the sealing effect, and easily causing pressure relief or leakage, etc., and the mechanical sealing method will cause wear during the rotation process, affecting the sealing effect, resulting in pressure relief or leakage, etc. Summary of the invention

[0003] The object of the present invention is to provide a fluid rotary pressure supply mechanism in view of the above problems.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a fluid rotating pressure supply mechanism, including a fixed pressure supply seat, a mounting channel axially penetrating both ends of the fixed pressure supply seat is provided in the fixed pressure supply seat, a pressure supply rod is rotatably penetrated in the mounting channel, and both ends of the pressure supply rod extend to the outside of the fixed pressure supply seat respectively, the fixed pressure supply seat is provided with at least one pressure supply inlet and outlet hole extending radially inward into the mounting channel, at least one pressure supply channel is provided in the pressure supply rod, and one end of the pressure supply channel is connected with the pressure supply inlet and outlet hole and the other end extends to the end of the pressure supply rod, a Tesla valve one-way sealing structure is provided between the circumferential outer side of the pressure supply rod and the circumferential inner side of the mounting channel, the pressure supply inlet and outlet hole can facilitate the supply of oil or air to the pressure supply rod through the pressure supply channel, and the Tesla valve one-way sealing structure can ensure that the pressure supply rod will not leak during the rotating oil and air supply process, thereby ensuring a leak-proof effect.

[0005] In the above-mentioned fluid rotary pressure supply mechanism, the middle part of the pressure supply rod has a rod columnar portion on the circumferential outer side, the diameter of the rod columnar portion is larger than the diameter of the two ends of the pressure supply rod, and the rod columnar portion is rotatably arranged in the installation channel, and angular contact bearings sleeved on the two ends of the pressure supply rod are respectively arranged on the circumferential inner sides of the two ends of the installation channel, and the end face of the rod columnar portion is located on the side of the inner ring of the angular contact bearing, and the rod columnar portion can be adapted to the installation channel and can be stably rotated in the installation channel to ensure the rotary oil and air supply effect, and the angular contact bearing can ensure the rotation stability of the rod columnar portion and reduce friction, thereby ensuring the rotation effect.

[0006] In the above-mentioned fluid rotary pressure supply mechanism, the number of the pressure supply inlet and outlet holes is two and they are respectively the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole, the number of the pressure supply channels is two and they are respectively the first pressure supply channel connected to the first pressure supply inlet and outlet hole and the second pressure supply channel connected to the second pressure supply inlet and outlet hole, the first pressure supply channel can be supplied with oil and air through the first pressure supply inlet and outlet hole, and the second pressure supply channel can be supplied with oil and air through the second pressure supply inlet and outlet hole, thereby ensuring the rotary oil and air supply effect.

[0007] In the above-mentioned fluid rotary pressure supply mechanism, the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole are respectively vertically arranged on the upper side of the fixed pressure supply seat, the first pressure supply channel and the second pressure supply channel are both bent and one end of each passes through the outer side of the columnar part of the rod body, and the other ends of the first pressure supply channel and the second pressure supply channel pass through the same end of the pressure supply rod, and the first pressure supply channel and the second pressure supply channel can facilitate the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole to supply oil and air, thereby improving the fluid output efficiency.

[0008] In the above-mentioned fluid rotary pressure supply mechanism, the Tesla valve one-way sealing structure includes a first one-way sealing component arranged on the circumferential inner side of the installation channel and a second one-way sealing component arranged on the circumferential outer side of the columnar portion of the rod body, and the first one-way sealing component and the second one-way sealing component are staggered with each other to ensure the sealing effect, and the first one-way sealing component and the second one-way sealing component cooperate to effectively prevent leakage of the pressure supply inlet and outlet holes during the transportation process.

[0009] In the above-mentioned fluid rotary pressure supply mechanism, the first one-way sealing assembly includes a plurality of outer sealing grooves which are sequentially arranged on the inner wall of the mounting channel and are respectively located on both sides of the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole away from each other, and are located between the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole. The outer sealing grooves are all annular and inclined toward the end of the mounting channel, and the open end of the outer sealing groove is in contact with the circumferential outer wall of the columnar portion of the rod body. The fluid will leak toward the connection between the fixed pressure supply seat and the columnar portion of the rod body during the rotation process, and the fluid flowing into the outer sealing groove can reduce the kinetic energy of the fluid, thereby effectively preventing fluid leakage.

[0010] In the above-mentioned fluid rotary pressure supply mechanism, the end of the outer sealing groove away from the contact with the circumferential outer wall of the columnar part of the rod body has an outer groove flared portion which is inclined, and the end of the outer groove flared portion has an outer groove arc portion, the outer groove flared portions of the outer sealing groove located on both sides of the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole which are away from each other are inclined in opposite directions and are respectively inclined toward the two ends of the installation channel, and the outer groove flared portion of the outer sealing groove located between the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole is located away from each other The outer groove flared parts of the outer sealing groove on either side are inclined in the same direction and are all inclined toward the same end of the installation channel, and the direction of the outer sealing groove can be adjusted according to usage requirements to select that the fluid in the first pressure supply inlet and outlet hole can flow to the second pressure supply inlet and outlet hole and the fluid in the second pressure supply inlet and outlet hole cannot flow into the first pressure supply inlet and outlet hole, or the fluid in the second pressure supply inlet and outlet hole can flow to the first pressure supply inlet and outlet hole and the fluid in the first pressure supply inlet and outlet hole cannot flow into the second pressure supply inlet and outlet hole, or the fluids between the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole are isolated from each other and do not flow into each other.

[0011] In the above-mentioned fluid rotary pressure supply mechanism, the second one-way sealing assembly includes a plurality of inner sealing grooves which are sequentially arranged on the outer wall of the rod body columnar portion and are respectively located on the two sides of the first pressure supply channel and the second pressure supply channel away from each other and between the first pressure supply channel and the second pressure supply channel. The inner sealing grooves are all annular and inclined toward the end direction of the rod body columnar portion, and the open end of the rod body columnar portion contacts the inner wall of the mounting channel. The inner sealing grooves on the two sides of the first pressure supply channel and the second pressure supply channel away from each other are respectively staggered with the outer sealing grooves on the two sides of the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole and are inclined toward the same end of the fixed pressure supply seat. The inner sealing grooves between the first pressure supply channel and the second pressure supply channel are respectively staggered with the outer sealing grooves between the first pressure supply inlet and outlet hole and are inclined toward the same end of the fixed pressure supply seat. The cooperation between the inner sealing grooves and the outer sealing grooves can further improve the sealing effect.

[0012] In the above-mentioned fluid rotary pressure supply mechanism, the end of the inner sealing groove away from the contact with the inner and outer walls of the installation channel has an inner groove flared portion that is inclined, and the end of the inner groove flared portion has an inner groove arc portion, the inner groove flared portions of the inner sealing grooves located on both sides away from each other of the first pressure supply channel and the second pressure supply channel have opposite inclination directions and are respectively inclined toward the two ends of the rod body columnar portion, the inner groove flared portion of the inner sealing groove located between the first pressure supply channel and the second pressure supply channel and the inner groove flared portion of the inner sealing groove located on any side away from each other of the first pressure supply channel and the second pressure supply channel They are distributed in the same direction and are all inclined toward the same end of the columnar portion of the rod body, and the direction of the inner sealing groove can be adjusted according to usage requirements to select that the fluid in the first pressure supply inlet and outlet hole can flow to the second pressure supply inlet and outlet hole and the fluid in the second pressure supply inlet and outlet hole cannot flow to the first pressure supply inlet and outlet hole, or the fluid in the second pressure supply inlet and outlet hole can flow to the first pressure supply inlet and outlet hole and the fluid in the first pressure supply inlet and outlet hole cannot flow to the second pressure supply inlet and outlet hole, or the fluids between the first pressure supply inlet and outlet hole and the second pressure supply inlet and outlet hole are isolated from each other and do not flow, and the direction of the inner sealing groove is consistent with that of the adjacent outer sealing groove, thereby further improving the sealing effect.

[0013] In the above-mentioned fluid rotary pressure supply mechanism, the pressure supply channel includes an axial channel extending along the axial direction of the pressure supply rod, one end of the axial channel is connected with a radial channel radially penetrating the columnar portion of the rod body and arranged perpendicular to the axial channel, the radial channel and the corresponding end of the pressure supply inlet and outlet hole are respectively provided with expansion chambers that are interconnected, and the inner side of the end of the pressure supply inlet and outlet hole away from the expansion chamber has an internal thread, and the expansion chamber can facilitate the fluid to flow into the radial channel and reduce the impact force, and the internal thread can facilitate the fixing of the pressure supply seat and the connection with the liquid supply pipe to ensure the liquid supply effect.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The one-way sealing structure of the Tesla valve is simple in structure and can ensure the sealing effect of the pressure inlet and outlet holes on the pressure supply rod during fluid transportation.

[0016] 2. The columnar portion of the rod body is stably rotatably arranged in the installation channel and the angular contact bearing can further improve the rotation stability of the columnar portion of the rod body and improve the rotation efficiency.

[0017] 3. The staggered arrangement of the outer sealing groove and the inner sealing groove can further improve the fluid sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a structural cross-sectional view of the present invention.

[0020] Figure 3 It is a structural sectional view of the fixed pressure supply seat in the present invention.

[0021] Figure 4 yes Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0022] Figure 5 It is a structural sectional view of the pressure supply rod in the present invention.

[0023] Figure 6 yes Figure 5 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0024] Figure 7 It is a partially enlarged application scenario diagram of the present invention.

[0025] In the figure: fixed pressure supply seat 1, installation channel 11, pressure supply inlet and outlet hole 12, first pressure supply inlet and outlet hole 121, second pressure supply inlet and outlet hole 122, internal thread 123, pressure supply rod 2, pressure supply channel 21, first pressure supply channel 211, second pressure supply channel 212, axial channel 213, radial channel 214, expansion cavity 215, rod body columnar portion 22, angular contact bearing 23, Tesla valve one-way sealing structure 3, first one-way sealing component 31, outer sealing groove 311, outer groove expansion portion 312, outer groove arc portion 313, second one-way sealing component 32, inner sealing groove 321, inner groove expansion portion 322, inner groove arc portion 323, spindle base 4, piston shaft core 5. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, a fluid rotary pressure supply mechanism comprises a fixed pressure supply seat 1, a mounting channel 11 axially penetrating through both ends of the fixed pressure supply seat 1 is provided in the fixed pressure supply seat 1, a pressure supply rod 2 is rotatably penetrated in the mounting channel 11, the mounting channel 11 can be conveniently sleeved on the pressure supply rod 2, and both ends of the pressure supply rod 2 extend to the outside of the fixed pressure supply seat 1 respectively, the fixed pressure supply seat 1 is provided with at least one pressure supply inlet and outlet hole 12 radially extending inwardly into the mounting channel 11, at least one pressure supply channel 21 is provided in the pressure supply rod 2, and one end of the pressure supply channel 21 is connected with the pressure supply inlet and outlet hole 12 and the other end extends to the end of the pressure supply rod 2, a Tesla valve one-way sealing structure 3 is provided between the circumferential outer side of the pressure supply rod 2 and the circumferential inner side of the mounting channel 11, the pressure supply inlet and outlet hole 12 can facilitate the supply of oil or air to the pressure supply rod 2 through the pressure supply channel 21, and the Tesla valve one-way sealing structure 3 can ensure that the pressure supply rod 2 will not leak during the rotating oil and air supply process, thereby ensuring a leak-proof effect.

[0028] Specifically, the supply pressure rod 2 has a rod body columnar portion 22 on the circumferential outer side of the middle part, the diameter of the rod body columnar portion 22 is larger than the diameter of the two ends of the supply pressure rod 2, and the rod body columnar portion 22 is rotatably arranged in the installation channel 11, and angular contact bearings 23 are respectively provided on the circumferential inner sides of the two ends of the installation channel 11 and are sleeved on the two ends of the supply pressure rod 2, and the end face of the rod body columnar portion 22 is located on the inner ring side of the angular contact bearing 23, and the rod body columnar portion 22 can be adapted to the installation channel 11 and can be stably rotated in the installation channel 11 to ensure the rotating oil and air supply effect, and the angular contact bearing 23 can ensure the rotation stability of the rod body columnar portion 22 and reduce friction, thereby ensuring the rotation effect.

[0029] Among them, the number of pressure supply inlet and outlet holes 12 is two and they are respectively the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122; the number of pressure supply channels 21 is two and they are respectively the first pressure supply channel 211 connected to the first pressure supply inlet and outlet hole 121 and the second pressure supply channel 212 connected to the second pressure supply inlet and outlet hole 122; the first pressure supply inlet and outlet hole 121 can be used to supply oil and air to the first pressure supply channel 211, and the second pressure supply inlet and outlet hole 122 can be used to supply oil and air to the second pressure supply channel 212, thereby ensuring the rotating oil and air supply effect.

[0030] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7As shown, the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 are respectively vertically arranged on the upper side of the fixed pressure supply seat 1, and the first pressure supply channel 211 and the second pressure supply channel 212 are both bent and one end of each passes through the outer side of the rod body columnar portion 22, and the other ends of the first pressure supply channel 211 and the second pressure supply channel 212 pass through the same end of the pressure supply rod 2, and the first pressure supply channel 211 and the second pressure supply channel 212 can facilitate the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 to supply oil and air, thereby improving the fluid output efficiency.

[0031] Furthermore, the Tesla valve one-way sealing structure 3 includes a first one-way sealing component 31 arranged on the inner side of the installation channel 11 in the circumferential direction and a second one-way sealing component 32 arranged on the outer side of the rod columnar portion 22 in the circumferential direction, and the first one-way sealing component 31 and the second one-way sealing component 32 are staggered with each other to ensure the sealing effect, and the first one-way sealing component 31 and the second one-way sealing component 32 cooperate to effectively prevent the pressure supply inlet and outlet hole 12 from leaking during the transportation process. When the fixed pressure supply seat 1 is suitable for the turret, The fixed pressure supply seat 1 is fixedly arranged on the circumferential outer side in the main shaft base 4, and the main shaft base 4 has oil inlet and outlet ports corresponding to the pressure supply inlet and outlet holes 12 on the fixed pressure supply seat 1, and oil or air is supplied to the pressure supply inlet and outlet holes 12 through the oil inlet and outlet ports, wherein the pressure supply rod 2 is arranged on the circumferential outer side of the piston shaft core 5, and one end of the pressure supply rod 2 is rotated by a belt pulley, and oil and air are supplied to the piston shaft core 5 through the pressure supply channel 21, and the rotary sealing effect can be ensured by the first one-way sealing component 31 and the second one-way sealing component 32.

[0032] Among them, the first one-way sealing component 31 includes a plurality of outer sealing grooves 311 which are arranged in sequence on the inner wall of the installation channel 11 and are respectively located on both sides of the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 away from each other, and are located between the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122. The outer sealing grooves 311 are all annular and inclined toward the end of the installation channel 11, and the open end of the outer sealing groove 311 is in contact with the circumferential outer wall of the rod body columnar portion 22. The fluid will leak toward the connection between the fixed pressure supply seat 1 and the rod body columnar portion 22 during the rotation process, and the fluid flowing into the outer sealing groove 311 can reduce the kinetic energy of the fluid, which can effectively prevent fluid leakage.

[0033] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the outer sealing groove 311 has an outer groove flared portion 312 which is arranged obliquely at one end away from the contact with the circumferential outer wall of the rod body columnar portion 22, and the end of the outer groove flared portion 312 has an outer groove arc portion 313, through which the fluid can be guided into the outer groove arc portion 313, and the outer groove arc portion 313 can buffer the kinetic energy of the fluid, reduce fluid leakage, and improve the sealing effect. The outer groove flared portions 312 of the outer sealing groove 311 located on both sides away from the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 are inclined in opposite directions and are inclined toward the two ends of the installation channel 11 respectively, which can improve the sealing effect of the two ends of the installation channel 11. The outer groove flared portions 312 of the outer sealing groove 311 located between the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 can improve the sealing effect of the two ends of the installation channel 11. The groove expansion portion 312 is inclined in the same direction as the outer groove expansion portion 312 of the outer sealing groove 311 located on any side away from the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122, and both are inclined toward the same end of the installation channel 11, and the direction of the outer sealing groove 311 can be adjusted according to usage requirements to select that the fluid in the first pressure supply inlet and outlet hole 121 can flow to the second pressure supply inlet and outlet hole 122 and the fluid in the second pressure supply inlet and outlet hole 122 cannot flow into the first pressure supply inlet and outlet hole 121, or the fluid in the second pressure supply inlet and outlet hole 122 can flow to the first pressure supply inlet and outlet hole 121 and the fluid in the first pressure supply inlet and outlet hole 121 cannot flow into the second pressure supply inlet and outlet hole 122, or the fluids between the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 are isolated from each other and do not circulate.

[0034] Among them, the second one-way sealing component 32 includes a plurality of inner sealing grooves 321 which are sequentially arranged on the outer wall of the rod body columnar portion 22 and are respectively located on the two sides of the first pressure supply channel 211 and the second pressure supply channel 212 which are far away from each other, and are located between the first pressure supply channel 211 and the second pressure supply channel 212. The inner sealing grooves 321 are all annular and inclined toward the end of the rod body columnar portion 22, and the open part of the rod body columnar portion 22 is in contact with the inner wall of the installation channel 11. The fluid will leak toward the connection between the fixed pressure supply seat 1 and the rod body columnar portion 22 during the rotation process, and the fluid flowing into the inner sealing groove 321 can reduce the kinetic energy of the fluid, which can effectively prevent fluid leakage. Phenomenon, the inner sealing grooves 321 located on both sides of the first pressure supply channel 211 and the second pressure supply channel 212 away from each other are respectively staggered with the outer sealing grooves 311 located on both sides of the first pressure supply inlet and outlet holes 121 and the second pressure supply inlet and outlet holes 122 and are inclined toward the same end of the fixed pressure supply seat 1, the inner sealing grooves 321 located between the first pressure supply channel 211 and the second pressure supply channel 212 are respectively staggered with the outer sealing grooves 311 located between the first pressure supply inlet and outlet holes 121 and the second pressure supply inlet and outlet holes 122 and are inclined toward the same end of the fixed pressure supply seat 1, the inner sealing grooves 321 and the outer sealing grooves 311 cooperate to further improve the sealing effect.

[0035] Specifically, the inner sealing groove 321 has an inner groove flared portion 322 which is inclined at one end away from the inner wall of the mounting channel 11, and the end of the inner groove flared portion 322 has an inner groove arc portion 323, and the inner groove flared portion 322 can guide the fluid into the inner groove arc portion 323, and the outer groove arc portion 313 can buffer the kinetic energy of the fluid, reduce fluid leakage, and improve the sealing effect, the inner groove flared portions 322 of the inner sealing groove 321 located on both sides away from the first pressure supply channel 211 and the second pressure supply channel 212 are inclined in opposite directions and are inclined toward the two ends of the rod body columnar portion 22 respectively, and the inner groove flared portion 322 of the inner sealing groove 321 located between the first pressure supply channel 211 and the second pressure supply channel 212 is inclined in opposite directions and is inclined toward the two ends of the rod body columnar portion 22 respectively, and the inner groove flared portion 322 of the inner sealing groove 321 located between the first pressure supply channel 211 and the second pressure supply channel 212 is inclined in opposite directions. The inner groove flared parts 322 of the inner sealing groove 321 on either side away from each other are inclined in the same direction and are all inclined toward the same end of the rod body columnar part 22, and the direction of the inner sealing groove 321 can be adjusted according to the use requirements to select the fluid in the first pressure supply inlet and outlet hole 121 to flow to the second pressure supply inlet and outlet hole 122 and the fluid in the second pressure supply inlet and outlet hole 122 cannot flow into the first pressure supply inlet and outlet hole 121, or the fluid in the second pressure supply inlet and outlet hole 122 can flow to the first pressure supply inlet and outlet hole 121 and the fluid in the first pressure supply inlet and outlet hole 121 cannot flow into the second pressure supply inlet and outlet hole 122, or the fluids between the first pressure supply inlet and outlet hole 121 and the second pressure supply inlet and outlet hole 122 are isolated from each other and do not circulate, and the direction of the inner sealing groove 321 is consistent with that of the adjacent outer sealing groove 311, thereby further improving the sealing effect.

[0036] Combination Figure 2 , Figure 3 , Figure 5 As shown, the pressure supply channel 21 includes an axial channel 213 extending axially along the pressure supply rod 2, one end of the axial channel 213 is connected with a radial channel 214 which radially penetrates the columnar portion 22 of the rod body and is perpendicular to the axial channel 213, and the radial channel 214 and the corresponding end of the pressure supply inlet and outlet hole 12 are respectively provided with expansion chambers 215 which are interconnected, and the inner side of the end of the pressure supply inlet and outlet hole 12 away from the expansion chamber 215 has an internal thread 123, and the expansion chamber 215 can facilitate the fluid to flow into the radial channel 214 and reduce the impact force, and the internal thread 123 can facilitate the fixing of the pressure supply seat 1 and the liquid supply pipe to ensure the liquid supply effect.

[0037] The principle of this embodiment is that the pressure supply rod 2 is rotatably arranged in the installation channel 11 and the pressure supply inlet and outlet holes 12 and the pressure supply channel 21 can facilitate the fixed pressure supply seat 1 to transport the fluid to the pressure supply rod 2, and the Tesla valve one-way sealing structure 3 can improve the rotational leakage-proof effect between the pressure supply rod 2 and the fixed pressure supply seat 1, and the angular contact bearing 23 can ensure the rotational stability and rotational efficiency of the pressure supply rod 2 in the installation channel 11.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0039] Although the fixed pressure supply seat 1, the installation channel 11, the pressure supply inlet and outlet hole 12, the first pressure supply inlet and outlet hole 121, the second pressure supply inlet and outlet hole 122, the internal thread 123, the pressure supply rod 2, the pressure supply channel 21, the first pressure supply channel 211, the second pressure supply channel 212, the axial channel 213, the radial channel 214, the expansion cavity 215, the rod body columnar portion 22, the angular contact bearing 23, the Tesla valve one-way sealing structure 3, the first one-way sealing component 31, the outer sealing groove 311, the outer groove expansion portion 312, the outer groove arc portion 313, the second one-way sealing component 32, the inner sealing groove 321, the inner groove expansion portion 322, the inner groove arc portion 323, the main shaft base 4, the piston shaft core 5 and other terms are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A fluid rotary pressure supply mechanism, comprising a fixed pressure supply seat (1), wherein the fixed pressure supply seat (1) is provided with a mounting channel (11) axially penetrating both ends of the fixed pressure supply seat (1), wherein a pressure supply rod (2) is rotatably penetrated in the mounting channel (11), and both ends of the pressure supply rod (2) extend to the outside of the fixed pressure supply seat (1), characterized in that: The fixed pressure supply seat (1) is provided with at least one pressure supply inlet and outlet hole (12) extending radially inwardly into the installation channel (11); the pressure supply rod (2) is provided with at least one pressure supply channel (21); one end of the pressure supply channel (21) is connected to the pressure supply inlet and outlet hole (12) and the other end extends to the end of the pressure supply rod (2); a Tesla valve one-way sealing structure (3) is provided between the circumferential outer side of the pressure supply rod (2) and the circumferential inner side of the installation channel (11).

2. A fluid rotary pressure supply mechanism according to claim 1, characterized in that: The pressure supply rod (2) has a rod body columnar portion (22) on the circumferential outer side of the middle part, the diameter of the rod body columnar portion (22) is larger than the diameter of the two ends of the pressure supply rod (2), and the rod body columnar portion (22) is rotatably arranged in the installation channel (11), and angular contact bearings (23) sleeved on the two ends of the pressure supply rod (2) are respectively provided on the circumferential inner side of the two ends of the installation channel (11), and the end face of the rod body columnar portion (22) is located on the inner ring side of the angular contact bearing (23).

3. A fluid rotary pressure supply mechanism according to claim 2, characterized in that: The number of the pressure supply inlet and outlet holes (12) is two and they are respectively a first pressure supply inlet and outlet hole (121) and a second pressure supply inlet and outlet hole (122); the number of the pressure supply channels (21) is two and they are respectively a first pressure supply channel (211) connected to the first pressure supply inlet and outlet hole (121) and a second pressure supply channel (212) connected to the second pressure supply inlet and outlet hole (122).

4. A fluid rotary pressure supply mechanism according to claim 3, characterized in that: The first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) are respectively vertically arranged on the upper side of the fixed pressure supply seat (1); the first pressure supply channel (211) and the second pressure supply channel (212) are both bent and one end of each passes through the outer side of the columnar portion (22) of the rod body; and the other ends of the first pressure supply channel (211) and the second pressure supply channel (212) pass through the same end of the pressure supply rod (2).

5. A fluid rotary pressure supply mechanism according to claim 3 or 4, characterized in that: The Tesla valve one-way sealing structure (3) comprises a first one-way sealing component (31) arranged on the circumferential inner side of the installation channel (11) and a second one-way sealing component (32) arranged on the circumferential outer side of the rod body columnar portion (22), and the first one-way sealing component (31) and the second one-way sealing component (32) are arranged in a staggered manner with respect to each other.

6. A fluid rotary pressure supply mechanism according to claim 5, characterized in that: The first one-way sealing assembly (31) comprises a plurality of outer sealing grooves (311) which are sequentially arranged on the inner wall of the installation channel (11) and are respectively located on two sides of the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) which are away from each other, and are located between the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122). The outer sealing grooves (311) are all annular and are inclined toward the end of the installation channel (11). The open end of the outer sealing grooves (311) contacts the circumferential outer wall of the rod body columnar portion (22).

7. A fluid rotary pressure supply mechanism according to claim 6, characterized in that: The outer sealing groove (311) has an outer groove flaring portion (312) which is arranged obliquely at one end away from the contact with the circumferential outer wall of the rod body columnar portion (22), and the end of the outer groove flaring portion (312) has an outer groove arc portion (313). The outer groove flaring portions (312) of the outer sealing groove (311) located on both sides of the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) which are away from each other are inclined in opposite directions and are respectively inclined toward the two ends of the installation channel (11). The outer groove flaring portion (312) of the outer sealing groove (311) located between the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) are inclined in the same direction as the outer groove flaring portions (312) of the outer sealing groove (311) located on any side of the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) which are away from each other, and are both inclined toward the same end of the installation channel (11).

8. A fluid rotary pressure supply mechanism according to claim 6, characterized in that: The second one-way sealing assembly (32) comprises a plurality of inner sealing grooves (321) which are sequentially arranged on the outer wall of the rod body columnar portion (22) and are respectively located on two sides of the first pressure supply channel (211) and the second pressure supply channel (212) which are away from each other, and are located between the first pressure supply channel (211) and the second pressure supply channel (212). The inner sealing grooves (321) are all annular and are inclined toward the end of the rod body columnar portion (22). The open portion of the rod body columnar portion (22) contacts the inner wall of the installation channel (11). The inner sealing grooves (321) are located between the first pressure supply channel (211) and the second pressure supply channel (212). The inner sealing grooves (321) on the two sides of the channel (212) that are away from each other are respectively offset with the outer sealing grooves (311) on the two sides of the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122) that are away from each other, and are inclined toward the same end of the fixed pressure supply seat (1); the inner sealing grooves (321) located between the first pressure supply channel (211) and the second pressure supply channel (212) are respectively offset with the outer sealing grooves (311) located between the first pressure supply inlet and outlet hole (121) and the second pressure supply inlet and outlet hole (122), and are inclined toward the same end of the fixed pressure supply seat (1).

9. A fluid rotary pressure supply mechanism according to claim 8, characterized in that: The inner sealing groove (321) has an inner groove flaring portion (322) which is arranged obliquely at one end away from the inner wall of the mounting channel (11), and the end of the inner groove flaring portion (322) has an inner groove arc portion (323). The inner groove flaring portions (322) of the inner sealing groove (321) located on both sides away from each other of the first pressure supply channel (211) and the second pressure supply channel (212) are inclined in opposite directions and are respectively inclined toward the two ends of the rod body columnar portion (22). The inner groove flaring portion (322) of the inner sealing groove (321) located between the first pressure supply channel (211) and the second pressure supply channel (212) are inclined in the same direction as the inner groove flaring portions (322) of the inner sealing groove (321) located on either side away from each other of the first pressure supply channel (211) and the second pressure supply channel (212), and are both inclined toward the same end of the rod body columnar portion (22).

10. A fluid rotary pressure supply mechanism according to claim 5, characterized in that: The pressure supply channel (21) includes an axial channel (213) extending axially along the pressure supply rod (2), one end of the axial channel (213) is connected to a radial channel (214) radially penetrating the columnar portion (22) of the rod body and arranged perpendicular to the axial channel (213), and the radial channel (214) and the corresponding end of the pressure supply inlet and outlet hole (12) are respectively provided with expansion chambers (215) that are interconnected, and the inner side of the end of the pressure supply inlet and outlet hole (12) away from the expansion chamber (215) has an internal thread (216).

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