Boost oil nozzle, adapter structure and clutch roller assembly

Abstract

The present invention discloses a pressurized lubricating oil nozzle, comprising a nozzle housing arranged in a circular ring shape or a spiral ring shape and having a spiral ring-shaped inner cavity, a spiral profile arranged in the circular ring-shaped inner cavity and having a radial thickness gradually increasing or decreasing along the circumferential direction, the spiral profile and the nozzle housing enclose a fluid cavity for vortex pressurization of lubricating oil along the circumferential direction, the radial space gradually decreasing or increasing along the circumferential direction, the fluid cavity for vortex pressurization of lubricating oil along the circumferential direction, the fluid inlet connected to the end with the largest radial space of the fluid cavity for lubricating oil to enter the fluid cavity, and the fluid outlet connected to the end with the smallest radial space of the fluid cavity for lubricating oil to flow out of the fluid cavity. In addition, the present invention also discloses a transition structure including the above-mentioned pressurized lubricating oil nozzle. In addition, the present invention also discloses a clutch roller assembly including the above-mentioned pressurized lubricating oil nozzle.

Description

Technical Field

[0001] The present invention relates to the field of lubricating oil lubrication technology, and in particular, to a pressurized lubricating oil nozzle. In addition, the present invention also relates to a switching structure including the pressurized lubricating oil nozzle. In addition, the present invention also relates to a clutch roller assembly including the pressurized lubricating oil nozzle. Background Art

[0002] At present, the lubrication methods of aircraft engine bearings or clutches at home and abroad mainly include jet lubrication, under-ring lubrication and oil mist lubrication. Among them, oil mist lubrication is generally suitable for low speed and light load occasions and has limited use; the typical structure of under-ring lubrication is as follows Figure 1 As shown, under-ring lubrication is generally suitable for occasions with high speed, high Dn value (>1.2e6mm.rpm) (Dn value is the pitch circle diameter D multiplied by the shaft rotation speed n (unit r / pm)) and no space for arranging traditional structure nozzles, and the inner ring of the bearing needs to be designed with oil-slinging holes, and the assembled shaft needs to be designed with oil-slinging holes or oil-collecting grooves and other structures. The basic principle of under-ring lubrication is to collect the lubricating oil into the inner ring cavity or the inner cavity of the rotating shaft through the oil-slinging holes under the action of centrifugal force. The inner ring of the bearing is provided with radial oil holes for delivering the lubricating oil to the rolling body cavity. The advantage of this method is that it has a better lubrication effect for bearings with high speed and does not require much space. The disadvantage is that it needs to set up accessories such as lubricating oil pumps, lubricating oil detection sensors, and oil circuits, and the inner ring of the bearing needs to be designed with oil holes. The assembled shaft generally needs to be designed with oil collecting cavities / grooves or other oil collection structures, which weakens the strength of the bearing and the shaft to a certain extent. At the same time, since under-ring lubrication mainly relies on the centrifugal force of the lubricating oil to throw the lubricating oil into the oil hole, its applicable occasions require situations with higher speed shafts, the application occasions are limited, and the cost is relatively high.

[0003] Jet lubrication has a wide range of applications and can be used as long as there is enough space. At present, the lubricating oil pump is generally used in the lubricating oil system of aircraft engines to establish the lubricating oil pressure, and then the lubricating oil reaches the designated position through the internal oil circuit or external pipeline integrated on the casing, and the lubricating oil is transported to the part that needs lubrication through the design of traditional nozzles. The typical structure of jet lubrication is as follows: Figure 2 As shown, the function of the existing nozzle is mainly to transport the pressurized lubricating oil generated by the lubricating oil pump to the required lubrication point through a suitable path. It does not have the function of increasing the lubricating oil pressure, but requires the design of a relatively complex oil circuit and nozzle structure, which on the one hand will increase the space, weight and cost, and on the other hand will lead to a complex structure and reduced reliability. Summary of the invention

[0004] The present invention provides a pressurized lubricating oil nozzle, a switching structure and a clutch roller assembly to solve the technical problems that the existing lubrication methods of the internal structures of aircraft engines all require the installation of lubricating oil pressurizing equipment such as lubricating oil pumps, and either the use occasions are limited or the structure is complex and the reliability is low.

[0005] According to one aspect of the present invention, there is provided a pressurized lubricating oil nozzle, comprising a nozzle housing arranged in a circular ring shape or a spiral ring shape and having a spiral ring-shaped inner cavity, a helical surface arranged in the circular ring-shaped inner cavity and having a radial thickness gradually increasing or decreasing in a circumferential direction, the helical surface and the nozzle housing enclosing a fluid cavity for vortex pressurization of lubricating oil in a circumferential direction, the fluid cavity having a radial space gradually decreasing or increasing in a circumferential direction, an oil inlet connected to an end of the fluid cavity having a largest radial space and used for lubricating oil to enter the fluid cavity, and an oil outlet connected to an end of the fluid cavity having a smallest radial space and used for lubricating oil to flow out of the fluid cavity.

[0006] According to another aspect of the present invention, a transfer structure is also provided, which includes the above-mentioned pressurized lubricating oil nozzle, and also includes a casing, a power transfer shaft arranged in the casing, a spline shaft extending into the inner cavity of the power transfer shaft and spline-connected with the power transfer shaft, and a transfer shaft support bearing arranged between the casing and the power transfer shaft, the inner cavity of the spline shaft is connected with the inner cavity of the power transfer shaft, the inner cavity of the power transfer shaft is connected with the lubricating oil inlet, and the inner ring of the nozzle housing is fixedly sleeved on the power transfer shaft and is used to lubricate the transfer shaft support bearing.

[0007] As a further improvement of the above technical solution:

[0008] Furthermore, the lubricating oil inlet is arranged on the inner annular surface of the nozzle housing, and the lubricating oil outlet is arranged on the axial end surface of the nozzle housing and close to the outer annular surface of the nozzle housing.

[0009] Furthermore, the transition structure also includes a mounting seat abutting the axial end face of the casing, and the power transition shaft includes a mounting section connected to the spline shaft for installing the boost oil nozzle and the transition shaft support bearing, and a transition section that is clearance-matched with the inner hole of the mounting seat.

[0010] Furthermore, the transition structure also includes a dynamic seal static ring whose outer ring surface is gap-fitted with the inner wall surface of the casing and whose axial end face is axially abutted against the mounting seat, and a dynamic seal dynamic ring which is sleeved outside the mounting section and axially abutted against the dynamic seal static ring and is used to axially compress through elastic force to form a dynamic seal assembly, and the other axial end face of the dynamic seal dynamic ring is axially abutted against the transition shaft support bearing.

[0011] Furthermore, the transition structure also includes an inner distance sleeve which is sleeved on the journal of the mounting section and axially abuts against the nozzle housing and the transition shaft support bearing respectively, and an outer distance sleeve which is circumferentially arranged on the inner wall surface of the casing and axially abuts against the dynamic seal and static ring and the transition shaft support bearing respectively.

[0012] Furthermore, an abutment boss extending radially outward is provided at the end of the mounting section away from the mounting seat, and the transition structure also includes a locking nut which is sleeved on the end of the mounting section close to the mounting seat and axially abuts against the end face of the dynamic seal dynamic ring close to the mounting seat and is used to axially press and fix the dynamic seal dynamic ring, the inner distance sleeve, the transition shaft support bearing and the nozzle housing, and the locking nut is threadedly connected to the mounting section.

[0013] Furthermore, two adapter shaft support bearings are arranged and are respectively arranged on two axial sides of the nozzle housing.

[0014] According to another aspect of the present invention, a clutch roller assembly is also provided, which includes the above-mentioned pressurized lubricating oil nozzle, the axial end face of the nozzle housing is provided with a connecting boss extending axially outward, the clutch roller assembly also includes an outer sleeve, a clutch inner sleeve arranged in the outer sleeve gear and fixedly sleeved outside the connecting boss, a clutch support bearing arranged between the outer sleeve gear and the clutch inner sleeve, an oil guide pipe connected to the lubricating oil inlet and a lubricating oil tank connected to the oil guide pipe, the inner cavity of the clutch inner sleeve is connected to the lubricating oil outlet, and the inner cavity of the clutch inner sleeve is connected to the inner cavity of the outer sleeve gear.

[0015] As a further improvement of the above technical solution:

[0016] Furthermore, the lubricating oil inlet is arranged on the outer ring surface of the nozzle housing, and the lubricating oil outlet is axially opened on the connecting boss.

[0017] The present invention has the following beneficial effects:

[0018] The pressurized lubricating oil nozzle of the present invention usually applies a ring-shaped or spiral ring-shaped nozzle shell to a rotating shaft and rotates synchronously with the rotating shaft at a high speed, and inputs a fixed flow of lubricating oil into a fluid cavity from the lubricating oil inlet. The lubricating oil flows to the lubricating oil outlet during high-speed rotation. The fluid cavity is formed by the helical surface and the nozzle shell, and the radial thickness of the helical surface gradually increases or decreases along the circumferential direction, so that the radial space of the fluid cavity gradually decreases or increases along the circumferential direction. The lubricating oil inlet is connected to the end with the largest radial space of the fluid cavity, and the lubricating oil outlet is connected to the end with the smallest radial space of the fluid cavity. Due to the incompressibility of the lubricating oil, the radial direction of the fluid cavity is increased during the process of the lubricating oil flowing from the lubricating oil inlet into the fluid cavity and flowing out of the fluid cavity from the lubricating oil outlet. The space gradually decreases, which makes the lubricating oil pressure gradually increase. At the same time, the lubricating oil generates centrifugal force with the high-speed rotation of the nozzle housing. The two work together to increase the lubricating oil pressure at the lubricating oil outlet, so as to spray the lubricating oil to the parts that need lubrication. This scheme forms a fluid cavity for vortex pressurization of the lubricating oil along the circumferential direction through the nozzle housing and the spiral surface. It is only necessary to drive the nozzle housing to rotate at high speed through the rotating shaft and input a fixed flow of lubricating oil into the fluid cavity. The centrifugal pressurization caused by the high-speed rotation of the nozzle housing and the volume change of the fluid cavity generate a pressure difference to realize pressurized injection lubrication of the lubricating oil. Compared with the existing technology, there is no need to set up additional lubricating oil pressurization equipment. At the same time, it is applicable to a wide range of occasions, and has a simple structure, high reliability, and strong practicality. It is suitable for wide promotion and application.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a typical structure of existing under-ring lubrication;

[0022] Figure 2 It is a typical structure of existing jet lubrication;

[0023] Figure 3 is a schematic structural diagram of a pressurized oil nozzle according to a preferred embodiment of the present invention;

[0024] Figure 4 The preferred embodiment of the present invention includes Figure 3 A schematic structural diagram of a transfer structure of a pressurized oil nozzle is shown;

[0025] Figure 5 is a schematic structural diagram of a pressurized oil nozzle according to a preferred embodiment of the present invention;

[0026] Figure 6 The preferred embodiment of the present invention includes Figure 5 The schematic diagram of the structure of the clutch roller assembly of the boost oil nozzle is shown. Legend:

[0027] 100. Nozzle housing; 101. Lubricating oil inlet; 102. Lubricating oil outlet; 103. Connecting boss; 110. Helical profile; 120. Fluid chamber; 200. Casing; 210. Power transfer shaft; 220. Spline shaft; 230. Transfer shaft support bearing; 240. Mounting seat; 250. Dynamic seal static ring; 260. Dynamic seal dynamic ring; 270. Inner distance sleeve; 280. Outer distance sleeve; 290. Locking nut; 300. Outer gear; 310. Clutch inner sleeve; 320. Clutch support bearing; 330. Oil guide pipe; 340. Lubricating oil tank. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0029] Figure 1 It is a typical structure of existing under-ring lubrication; Figure 2 It is a typical structure of existing jet lubrication; Figure 3 is a schematic structural diagram of a pressurized oil nozzle according to a preferred embodiment of the present invention; Figure 4 The preferred embodiment of the present invention includes Figure 3 A schematic structural diagram of a transfer structure of a pressurized oil nozzle is shown; Figure 5 is a schematic structural diagram of a pressurized oil nozzle according to a preferred embodiment of the present invention;

[0030] Figure 6 The preferred embodiment of the present invention includes Figure 5 Schematic diagram of the structure of the clutch roller assembly of the boost oil nozzle shown.

[0031] like Figure 3 and Figure 5As shown, the pressurized lubricating oil nozzle of this embodiment includes a nozzle housing 100 arranged in a circular ring shape or a spiral ring shape and having a spiral inner cavity, a spiral surface 110 arranged in the circular inner cavity and with a radial thickness gradually increasing or decreasing along the circumferential direction, the spiral surface 110 and the nozzle housing 100 enclose a fluid cavity 120 for vortex pressurization of lubricating oil along the circumferential direction, with a radial space gradually decreasing or increasing along the circumferential direction, an oil inlet 101 connected to the end of the fluid cavity 120 with the largest radial space and used for lubricating oil to enter the fluid cavity 120, and an oil outlet 102 connected to the end of the fluid cavity 120 with the smallest radial space and used for lubricating oil to flow out of the fluid cavity 120. Specifically, the pressurized lubricating oil nozzle of the present invention usually applies a ring-shaped or spiral ring-shaped nozzle shell to a rotating shaft and rotates synchronously with the rotating shaft at a high speed, and inputs a fixed flow of lubricating oil from the lubricating oil inlet 101 into the fluid cavity 120, and the lubricating oil flows to the lubricating oil outlet 102 during the high-speed rotation. The fluid cavity 120 is formed by the helical surface 110 and the nozzle shell 100, and the radial thickness of the helical surface 110 gradually increases or decreases in the circumferential direction, so that the radial space of the fluid cavity 120 gradually decreases or increases in the circumferential direction. The lubricating oil inlet 101 is connected to the end of the fluid cavity 120 with the largest radial space, and the lubricating oil outlet 102 is connected to the end of the fluid cavity 120 with the smallest radial space. Due to the incompressibility of the lubricating oil, the lubricating oil flows into the fluid cavity 120 from the lubricating oil inlet 101 and flows out of the fluid cavity 120 from the lubricating oil outlet 102. During the process, the radial space of the fluid chamber 120 gradually decreases, causing the lubricating oil pressure to gradually increase. At the same time, the lubricating oil generates centrifugal force as the nozzle housing rotates at a high speed. The two work together to increase the lubricating oil pressure at the lubricating oil outlet 102, so as to spray the lubricating oil to the parts that need lubrication. This solution forms a fluid chamber 120 in which the lubricating oil is pressurized in a circumferential direction through the nozzle housing 100 and the spiral surface 110. It is only necessary to drive the nozzle housing 100 to rotate at a high speed through the existing rotating shaft and input a fixed flow of lubricating oil into the fluid chamber 120. The centrifugal pressurization caused by the high-speed rotation of the nozzle housing 100 and the volume change of the fluid chamber 120 generate a pressure difference to realize pressurized injection lubrication of the lubricating oil. Compared with the prior art, there is no need to set up additional lubricating oil pressurization equipment. At the same time, it is applicable to a wide range of occasions, and has a simple structure, high reliability, and strong practicality. It is suitable for wide promotion and application. It should be understood that the bearings in the engine are usually used to support the rotating shaft that rotates at high speed. Therefore, the annular lubricating oil boost nozzle can be fixedly sleeved outside the rotating shaft, and rotate synchronously with the high-speed rotation of the rotating shaft to achieve lubrication of the bearing. Optionally, the spiral of the spiral profile 110 is a logarithmic spiral or an Archimedean spiral. Optionally, the boost lubricating oil nozzle can be widely used in turbine starter reducers and auxiliary power unit gearboxes.It should be understood that the direction in which the radial thickness of the spiral profile 110 gradually increases along the circumferential direction is the same as the rotation direction, and the direction in which the radial thickness of the spiral profile 110 gradually decreases along the circumferential direction is opposite to the rotation direction.

[0032] like Figure 4 As shown, the adapter structure of the present embodiment includes the above-mentioned pressurized lubricating oil nozzle, and also includes a casing 200, a power adapter shaft 210 arranged in the casing 200, a spline shaft 220 extending into the inner cavity of the power adapter shaft 210 and spline-connected with the power adapter shaft 210, and an adapter shaft support bearing 230 arranged between the casing 200 and the power adapter shaft 210, the inner cavity of the spline shaft 220 is communicated with the inner cavity of the power adapter shaft 210, the inner cavity of the power adapter shaft 210 is communicated with the lubricating oil inlet 101, and the inner ring of the nozzle housing 100 is fixedly sleeved on the power adapter shaft 210 and is used to lubricate the adapter shaft support bearing 230. Specifically, the lubricating oil is sprayed into the inner cavity of the spline shaft 220, and then flows into the inner cavity of the power transfer shaft 210. Under the centrifugal force generated by the high-speed rotation of the power transfer shaft 210, the lubricating oil flows into the fluid cavity 120 through the lubricating oil inlet 101, so that the lubricating oil is pressurized by the supercharged lubricating oil nozzle and then sprayed to the transfer shaft support bearing 230 for lubrication. This solution realizes the supercharged injection lubrication of the transfer shaft support bearing 230 by the high-speed rotation of the power transfer shaft 210 and the supercharged lubricating oil nozzle during the working process of the power transfer shaft 210. There is no need to design a complex oil circuit, and the supercharged lubricating oil nozzle has a simple and compact structure. Compared with the prior art, it swings the constraints of lubricating oil supercharging structures such as lubricating oil pumps to achieve autonomous supercharged lubrication, with high reliability and strong practicality, and is suitable for wide promotion and application. Optionally, the transfer structure can be widely used in turbine starter reducers and auxiliary power unit gearboxes. Optionally, the transfer structure also includes a transmission gear fixedly sleeved outside the spline shaft 220 and spline-connected thereto.

[0033] like Figure 4As shown, in this embodiment, the lubricating oil inlet 101 is arranged on the inner annular surface of the nozzle housing 100 , and the lubricating oil outlet 102 is arranged on the axial end surface of the nozzle housing 100 and close to the outer annular surface of the nozzle housing 100 . Specifically, during the process of the power transfer shaft 210 driving the nozzle housing 100 to rotate at high speed, the relative positions of the nozzle housing 100 and the power transfer shaft 210 are fixed, and the lubricating oil in the fluid cavity 120 is thrown from the inner wall surface of the fluid cavity 120 to the outer wall surface of the fluid cavity 120 under the action of centrifugal force. Therefore, the fluid pressure attached to the outer annular surface of the nozzle housing 100 is relatively large. By arranging the lubricating oil outlet 102 on the axial end surface of the nozzle housing 100 and close to the outer annular surface of the nozzle housing 100, the supercharging effect is fully utilized to increase the lubricating oil pressure at the lubricating oil outlet 102. At the same time, when the total amount of lubricating oil in the fluid cavity 120 remains unchanged, the amount of lubricating oil at the lubricating oil inlet 101 on the inner annular surface of the nozzle housing 100 is reduced, forming a negative pressure, which prompts the lubricating oil in the power transfer shaft 210 to be sucked into the fluid cavity 120 from the lubricating oil inlet 101. Optionally, the power transfer shaft 210 is provided with oil holes in the radial direction, which are respectively connected with the lubricating oil inlet 101 and the inner cavity of the power transfer shaft 210. It should be understood that the specific layout positions of the lubricating oil inlet 101 and the lubricating oil outlet 102 can be adaptively adjusted according to the lubrication requirements and positions of the bearings to be lubricated.

[0034] like Figure 4 As shown, in this embodiment, the transfer structure also includes a mounting seat 240 abutting against the axial end face of the casing 200, and the power transfer shaft 210 includes a mounting section connected to the spline shaft 220 for mounting the supercharged oil nozzle and the transfer shaft support bearing 230 and a transfer section that matches the inner hole clearance of the mounting seat 240. Specifically, the mounting seat 240 abuts against the axial end face of the casing 200, the mounting section of the power transfer shaft 210 is arranged in the casing 200 for mounting the supercharged oil nozzle and the transfer shaft support bearing 230, and is connected to the spline shaft 220, and the transfer section of the power transfer shaft 210 matches the inner hole clearance of the mounting seat 240 to connect with other engine components. Optionally, the inner annular surface of the nozzle housing 100 matches with the power transfer shaft 210 with a small clearance, and the outer annular surface of the nozzle housing 100 matches with the inner wall surface of the casing 200 with a large clearance to prevent mutual interference during operation. Optionally, the transition section 240 is matched with an inner hole of the mounting seat 240 with a large clearance.

[0035] like Figure 4As shown, in this embodiment, the transition structure also includes a dynamic seal static ring 250 whose outer ring surface is gap-matched with the inner wall surface of the casing 200 and whose axial end surface is axially abutted against the mounting seat 240, and a dynamic seal dynamic ring 260 which is sleeved outside the mounting section and axially abutted against the dynamic seal static ring 250 and is used to axially compress through elastic force to form a dynamic seal assembly, and the other axial end surface of the dynamic seal dynamic ring 260 is axially abutted against the transition shaft support bearing 230. Specifically, when the power transfer shaft 210 rotates at high speed to drive the oil boost nozzle to rotate at high speed, the dynamic seal dynamic ring 260 rotates synchronously at high speed, the dynamic seal static ring 250, the mounting seat 240 and the casing 200 are fixed, and the two ends of the dynamic seal static ring 250 are axially abutted with the mounting seat 240 and the dynamic seal dynamic ring 260, respectively, and the two ends of the dynamic seal dynamic ring 260 are axially abutted with the dynamic seal static ring 250 and the transfer shaft support bearing 230, respectively, to achieve the sealing of the gap between the casing 200 and the end face of the mounting section close to the mounting seat 240. Optionally, the inner annular surface of the nozzle housing 100 and the power transfer shaft 210 are matched with a small gap, and the outer annular surface of the nozzle housing 100 and the casing 200 are matched with a large gap to prevent the deformation of the nozzle housing 100 during high-speed rotation, resulting in interference between the moving parts and the static parts. It should be understood that the moving parts include the spline shaft 220, the power adapter shaft 210, the nozzle housing 100, the adapter shaft support bearing 230 and the dynamic seal dynamic ring 260, and the static parts include the dynamic seal static ring 250, the mounting seat 240 and the casing 200. Optionally, the dynamic seal static ring 250 is matched with the inner wall surface of the casing 200 with a small gap.

[0036] like Figure 4 As shown, in this embodiment, the transition structure also includes an inner distance sleeve 270 which is sleeved on the journal of the mounting section and axially abuts against the nozzle housing 100 and the transition shaft support bearing 230 respectively, and an outer distance sleeve 280 which is circumferentially arranged on the inner wall surface of the casing 200 and axially abuts against the dynamic seal static ring 250 and the transition shaft support bearing 230 respectively. Specifically, the inner distance sleeve 270 is axially abutted against the nozzle housing 100 and the transition shaft support bearing 230 respectively, and the outer distance sleeve 280 is axially abutted against the dynamic seal static ring 250 and the transition shaft support bearing 230 respectively, so as to adjust the axial position of the transition shaft support bearing 230 and the working height of the dynamic seal assembly, thereby achieving stable support and stable sealing.

[0037] like Figure 4As shown, in this embodiment, the end of the transition section away from the mounting seat 240 is provided with an abutment boss extending radially outward, and the transition structure also includes a locking nut 290 which is sleeved on the end of the mounting section close to the mounting seat 240 and axially abuts against the end surface of the dynamic seal dynamic ring 260 close to the mounting seat 240 and is used to axially press and fix the dynamic seal dynamic ring 260, the inner distance sleeve 270, the transition shaft support bearing 230 and the nozzle housing 100, and the locking nut 290 is threadedly connected to the mounting section. Specifically, by rotating the locking nut 290 to axially press and fix the dynamic seal dynamic ring 260, the inner distance sleeve 270, the transition shaft support bearing 230 and the nozzle housing 100 on the abutment boss, the axial position of the transition shaft support bearing 230 is fixed.

[0038] like Figure 4 As shown, in this embodiment, two adapter shaft support bearings 230 are arranged and are arranged on both axial sides of the nozzle housing 100. Specifically, the positions of the two adapter shaft support bearings 230 are determined by the nozzle housing 100 and the inner distance sleeve 270, which plays the role of axial positioning for the adapter shaft support bearings 230.

[0039] like Figure 5 and Figure 6As shown, the clutch roller assembly of this embodiment includes the above-mentioned pressurized lubricating oil nozzle, the axial end face of the nozzle housing 100 is provided with a connecting boss 103 extending axially outward, the clutch roller assembly also includes an outer sleeve gear 300, a clutch inner sleeve 310 arranged in the outer sleeve gear 300 and fixedly sleeved on the outside of the connecting boss 103, a clutch support bearing 320 arranged between the outer sleeve gear 300 and the clutch inner sleeve 310, an oil guide pipe 330 connected to the lubricating oil inlet 101 and a lubricating oil box 340 connected to the oil guide pipe 330, the inner cavity of the clutch inner sleeve 310 is connected to the lubricating oil outlet 102, and the inner cavity of the clutch inner sleeve 310 is connected to the inner cavity of the outer sleeve gear 300. Specifically, the high-speed rotation of the clutch inner sleeve 310 drives the connecting boss 103 to rotate at a high speed, thereby driving the nozzle housing 100 to rotate at a high speed, and then the lubricating oil in the lubricating oil box 340 flows into the nozzle housing 100 through the lubricating oil inlet 101 through the oil guide pipe 330, and is pressurized by the fluid cavity 120 and ejected from the lubricating oil outlet 102, and enters the inner cavity of the clutch inner sleeve 310, and is thrown between the outer wall of the clutch inner sleeve 310 and the inner wall of the outer gear 300 under the action of centrifugation to lubricate the clutch support bearing 320 and the clutch roller assembly. This solution realizes pressurized injection lubrication of the clutch support bearing 320 and the clutch roller assembly through the high-speed rotation of the clutch inner sleeve 310 during operation and the cooperation of the pressurized lubricating oil nozzle, without the need to design a complex oil circuit, and the pressurized lubricating oil nozzle has a simple and compact structure. Compared with the prior art, it swings the constraints of lubricating oil pressurizing equipment such as lubricating oil pumps to achieve autonomous pressurized lubrication, with high reliability and strong practicality, and is suitable for wide promotion and application. Optionally, the clutch roller assembly can be widely used in turbine starter reducers and auxiliary power unit gearboxes. Optionally, the connecting boss 103 is connected to the clutch inner sleeve 310 by bolt connection, interference fit or flat square head fit, and rotates together. Optionally, the oil guide pipe 330 and the lubricating oil inlet 101 are arranged opposite to each other. Optionally, the clutch inner sleeve 310 is provided with oil throwing holes in the radial direction, which are respectively connected to the inner cavity of the clutch inner sleeve 310 and the inner cavity of the outer gear 300.

[0040] like Figure 6 As shown, in this embodiment, the lubricating oil inlet 101 is arranged on the outer annular surface of the nozzle housing 100, and the lubricating oil outlet 102 is axially opened on the connecting boss 103. Specifically, the lubricating oil in the oil guide pipe 330 enters the fluid cavity 120 from the lubricating oil inlet 101 on the outer annular surface of the nozzle housing 100, and continuously rotates inward in the circumferential direction to be sprayed out from the lubricating oil outlet 102. Optionally, the inner annular surface of the nozzle housing 100 is opened with oil guide holes respectively connected to the lubricating oil outlet 102 and the fluid cavity 120.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clutch roller assembly, comprising a pressurized oil nozzle, characterized in that: The pressurized lubricating oil nozzle comprises a nozzle housing (100) arranged in a circular ring shape or a spiral ring shape and having a spiral ring-shaped inner cavity, a spiral profile (110) arranged in the spiral ring-shaped inner cavity and having a radial thickness gradually increasing or decreasing along the circumferential direction, a fluid cavity (120) enclosed by the spiral profile (110) and the nozzle housing (100) and having a radial space gradually decreasing or increasing along the circumferential direction and used for vortex pressurization of lubricating oil along the circumferential direction, a lubricating oil inlet (101) connected to the end of the fluid cavity (120) with the largest radial space and used for lubricating oil to enter the fluid cavity (120), and a lubricating oil outlet (102) connected to the end of the fluid cavity (120) with the smallest radial space and used for lubricating oil to flow out of the fluid cavity (120); The axial end surface of the nozzle housing (100) is provided with a connecting boss (103) extending axially outward. The clutch roller assembly further comprises an outer gear (300), a clutch inner sleeve (310) arranged inside the outer gear (300) and fixedly sleeved outside the connecting boss (103), a clutch support bearing (320) arranged between the outer gear (300) and the clutch inner sleeve (310), an oil guide pipe (330) connected to the lubricating oil inlet (101), and a lubricating oil tank (340) connected to the oil guide pipe (330). The inner cavity of the clutch inner sleeve (310) is connected to the lubricating oil outlet (102), and the inner cavity of the clutch inner sleeve (310) is connected to the inner cavity of the outer gear (300). The lubricating oil inlet (101) is arranged on the outer ring surface of the nozzle housing (100), and the lubricating oil outlet (102) is axially opened on the connecting boss (103).

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