Detection device for detecting oil injection flow and flow direction of bearing oil injection ring

Abstract

The utility model relates to a detection device for detecting the oil injection flow and flow direction of a bearing oil injection ring, which comprises a detection seat, a plug, a fastening structure, a flow direction detection sleeve and an oil collection pipe, a detection groove and a detection oil inlet hole are arranged in the detection seat, a first sealing ring is embedded on the inner circumferential wall of the detection groove, the plug is fixedly arranged on the groove bottom surface of the detection groove, and the fastening structure is arranged on the bottom surface of the detection groove. A first sealing ring is embedded in the outer peripheral wall of the plug, a ring containing groove is formed between the first sealing ring and the inner peripheral wall of the detection groove, a second sealing ring is embedded in the outer peripheral wall of the plug or the bottom face of the detection groove, the bearing oil injection ring is installed in the ring containing groove and makes close contact with the first sealing ring and the second sealing ring, and a sealing oil cavity is formed between the detection groove and the bearing oil injection ring. The oil inlet is located in the sealing oil cavity. N sub-mounting structures are arranged on the plug, after the flow direction detection sleeve is mounted on the mounting structures, the detection inlet faces the corresponding first oil spraying opening, and the center of the detection inlet is located on a second positioning circle; the oil collecting pipe can be in butt joint with the first oil spraying opening after being installed on the installation structure.

Description

Technical Field

[0001] The utility model relates to the technical field of parts detection, and in particular to a detection device for detecting the oil injection flow rate and flow direction of a bearing oil injection ring. Background Art

[0002] The bearing oil spray ring is a commonly used part in aircraft engines and is used to spray lubricating oil. Figure 1 To Attachment Figure 3 The figure shows a schematic diagram of the structure of a conventional bearing oil spray ring 1. Three oil spray seats are arranged on one end face of the bearing oil spray ring. A first oil spray port is arranged in the oil spray seat. The theoretical spray direction of the first oil spray port forms an angle θ with the radial line between the first oil spray port and the center of the bearing oil spray ring. A second oil spray port is arranged on the inner hole wall of the bearing oil spray ring 1. An oil inlet is arranged on the outer peripheral wall of the bearing oil spray ring. The first oil spray port and the second oil spray port are both connected to the oil inlet through the oil passage inside the bearing oil spray ring. The lubricating oil enters from the oil inlet and then sprays out from the first oil spray port and the second oil spray port. When the bearing oil spray ring is used, it is necessary to confirm whether it meets the following technical requirements: under a certain oil inlet pressure (for example, 0.5MPa), detect whether the flow direction of the lubricating oil sprayed from a single first oil spray port meets the requirements, and whether the oil spray flow rate in the first oil spray port and the second oil spray port meets the requirements. The existing method usually calculates the flow data theoretically, but does not actually measure it. There is no specific and convenient device to detect the injection flow and flow direction of the bearing injection ring. Utility Model Content

[0003] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring, which can simultaneously complete the flow direction detection and flow rate detection of the bearing oil injection ring, with accurate detection and easy operation.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a detection device for detecting the oil injection flow rate and flow direction of a bearing oil injection ring, wherein N oil injection seats are arranged on one side end surface of the bearing oil injection ring, and a first oil injection port is arranged in the oil injection seat, and an angle θ is formed between a radial line connecting the first oil injection port and the center of the bearing oil injection ring and a theoretical injection direction of the first oil injection port, and the N first oil injection ports are all located on a first positioning circle concentric with the bearing oil injection ring, and the radius of the first positioning circle is R 1The inner hole wall surface of the bearing oil injection ring is provided with a second oil injection port, and the outer circumferential wall is provided with an oil inlet port. The detection device includes a detection seat, a plug, a fastening structure, a flow direction detection sleeve and an oil collecting pipe. The detection seat is provided with a cylindrical detection groove and a detection oil inlet hole arranged on the inner circumferential wall of the detection groove. A first sealing ring located outside the detection oil inlet hole is embedded on the inner circumferential wall of the detection groove. The plug is fixedly installed on the bottom surface of the groove of the detection groove. A circular ring receiving groove for accommodating the bearing oil injection ring is provided between the outer circumferential wall of the plug and the inner circumferential wall of the detection groove. A second sealing ring is embedded on the outer circumferential wall of the plug or on the bottom surface of the detection groove. When the bearing oil injection ring is installed in the circular ring receiving groove, the outer circumferential surface is sealed with the first sealing ring. The first sealing ring is located on the outside of the oil inlet, the end face or the inner hole wall of the bearing oil injection ring is in sealing contact with the second sealing ring, and a sealed oil chamber is formed between the detection groove and the bearing oil injection ring, and the oil inlet is located in the sealed oil chamber; the fastening structure can fix the bearing oil injection ring in the detection groove; the plug is provided with N mounting structures corresponding to the N first oil injection ports, one end of the inner hole of the flow direction detection sleeve is the detection inlet, the flow direction detection sleeve can be installed on or removed from the mounting structure, and after the flow direction detection sleeve is installed on the mounting structure, the detection inlet faces the first oil injection port corresponding to the mounting structure, and the center of the detection inlet is located on a second positioning circle coaxial with the detection groove, and the radius of the second positioning circle R 2 =R 1 sinθ; the oil collecting pipe can be installed on or removed from the mounting structure, and the oil collecting pipe can be connected to the corresponding first fuel injection port after being installed on the mounting structure.

[0005] Furthermore, the number N of the first oil injection ports of the bearing oil injection ring is ≥2, and they are evenly arranged along the circumferential direction, and the mounting structure on the plug is evenly arranged along the circumferential direction.

[0006] Furthermore, the mounting structure on the plug is a mounting through hole, the axis of the mounting through hole is tangent to the second positioning circle, the flow direction detection sleeve is coaxially installed in the mounting through hole, and the detection inlet extends out of the mounting through hole or is flush with the opening of the mounting through hole.

[0007] Furthermore, the detection inlet of the flow direction detection sleeve is flush with the opening of the installation through hole.

[0008] Furthermore, the oil collecting pipe comprises a straight pipe section coaxially installed in the installation through hole, and the straight pipe section can move circumferentially in the installation through hole until it is docked with the corresponding oil injection port.

[0009] Furthermore, the fastening structure comprises a plurality of fastening bolts, the fastening bolts are threadedly connected to the detection seat and are located around the detection groove, and the fastening bolts are pressed against the outer edge of the bearing oil injection ring.

[0010] Furthermore, it also includes a pipe joint connected to the detection seat, and the pipe joint is connected to the detection oil inlet hole.

[0011] As described above, the detection device involved in the present utility model has the following beneficial effects:

[0012] The invention can simultaneously complete the flow direction detection of the first oil injection port of the bearing oil injection ring, and the flow rate detection of the first oil injection port and the second oil injection port. The detection is accurate, which solves the problem that the bearing oil injection ring parts are only theoretically calculated but not actually detected. The bearing oil injection ring only needs to be clamped once to complete the two detection tasks of flow rate and flow direction. The detection device has a simple structure, is easy to operate, and has high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the bearing oil spray ring.

[0014] Figure 2 for Figure 1 BB section view in.

[0015] Figure 3 for Figure 2 Enlarged view of circle A in .

[0016] Figure 4 It is a schematic structural diagram of the detection device of the utility model.

[0017] Figure 5 for Figure 4 HH section view in.

[0018] Figure 6 It is a structural schematic diagram of the detection seat and the plug in the utility model.

[0019] Figure 7 This is a structural schematic diagram of the detection seat and the plug in the utility model from another perspective.

[0020] Figure 8 It is a structural schematic diagram of the plug in the utility model.

[0021] Description of Reference Numerals

[0022] 1 Bearing oil spray ring

[0023] 101 First fuel injection port

[0024] 102 Second fuel injection port

[0025] 103 Oil inlet

[0026] 104 First positioning circle

[0027] 2 Detection seat

[0028] 201 Detection groove

[0029] 202 Detection of oil inlet hole

[0030] 3 Plug

[0031] 301 Mounting through hole

[0032] 302 Second positioning circle

[0033] 4 Flow direction detection kit

[0034] 401 Detection Entry

[0035] 5 Oil collection pipe

[0036] 6 First sealing ring

[0037] 7 Second sealing ring

[0038] 8 Pipe joints

[0039] 9 Fastening bolts DETAILED DESCRIPTION

[0040] The following is a specific embodiment to illustrate the implementation of the present invention. People familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0041] In order to make the purpose, technical solution and advantages of the practical embodiment clearer, the technical solution in the practical embodiment will be clearly and completely described below in conjunction with the drawings in the practical embodiment. Obviously, the described embodiment is a part of the practical embodiment, not all of the embodiments. Generally, the components of the practical embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] In the description of this utility, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility product is usually placed when in use. They are only for the convenience of describing this utility and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this utility. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of this utility, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.

[0044] like Figures 1 to 8 As shown, the utility model provides a detection device for detecting the oil injection flow rate and flow direction of a bearing oil injection ring. The bearing oil injection ring 1 is an existing part, and N oil injection seats are arranged on one end surface of the bearing oil injection ring. A first oil injection port 101 is arranged in the oil injection seat, and an angle θ is formed between a radial line connecting the first oil injection port 101 and the center of the bearing oil injection ring 1 and a theoretical injection direction of the first oil injection port 101. The N first oil injection ports 101 are all located on a first positioning circle 104 concentric with the bearing oil injection ring 1, and the radius of the first positioning circle 104 is R 1 The inner hole wall surface of the bearing oil spray ring 1 is provided with a second oil spray port 102, and the outer peripheral wall is provided with an oil inlet 103. The lubricating oil enters from the oil inlet 103, and then passes through the internal oil passage and is sprayed out from the first oil spray port 101 and the second oil spray port 102. In the present application, the inner hole surface and the outer peripheral surface of the bearing oil spray ring 1 can be composed of a plurality of surfaces with different diameters.

[0045] like Figures 4 to 8As shown, the detection device of the utility model includes a detection seat 2, a plug 3, a fastening structure, a flow direction detection sleeve 4 and an oil collecting pipe 5. The detection seat 2 is provided with a cylindrical detection groove 201 and a detection oil inlet hole 202 arranged on the inner circumferential wall of the detection groove 201. A first sealing ring 6 located outside the detection oil inlet hole 202 is embedded on the inner circumferential wall of the detection groove 201. The plug 3 is fixedly installed on the groove bottom surface of the detection groove 201. A circular ring receiving groove for accommodating a bearing oil injection ring 1 is provided between the outer circumferential wall of the plug 3 and the inner circumferential wall of the detection groove 201. A second sealing ring 7 is embedded on the outer circumferential wall of the plug 3 or on the groove bottom surface of the detection groove 201. When the bearing oil injection ring 1 is installed in the circular ring receiving groove, the outer circumferential surface is in sealing contact with the first sealing ring 6, and the first sealing ring 6 is located at the oil inlet 10 3, the end face or inner hole wall of the bearing oil injection ring 1 is in sealing contact with the second sealing ring 7, and a sealed oil chamber is formed between the detection groove 201 and the bearing oil injection ring 1, and the oil inlet 103 is located in the sealed oil chamber; the fastening structure can fix the bearing oil injection ring 1 in the detection groove 201; the plug 3 is provided with N mounting structures corresponding to the N first oil injection ports 101 respectively, and one end of the inner hole of the flow direction detection sleeve 4 is the detection inlet 401, and the flow direction detection sleeve 4 can be installed on or removed from the mounting structure. After the flow direction detection sleeve 4 is installed on the mounting structure, the detection inlet 401 faces the first oil injection port 101 corresponding to the mounting structure, and the center of the detection inlet 401 is located on a second positioning circle 302 coaxial with the detection groove 201, and the radius of the second positioning circle 302 is R 2 =R 1 sinθ; the oil collecting pipe 5 can be installed on or removed from the mounting structure, and the oil collecting pipe 5 can be connected with the corresponding first fuel injection port 101 after being installed on the mounting structure.

[0046] The main working principle of the detection device involved in the utility model is: (1) when it is necessary to measure whether the flow direction of the first oil injection port 101 of the bearing oil injection ring 1 meets the requirements, refer to Figure 4 and Figure 5 , install a flow direction detection sleeve 4 on each of the N mounting structures, install the bearing oil injection ring 1 in the detection device, the bearing oil injection ring 1 is coaxial with the detection groove 201, and the end face side where the first oil injection port 101 is located faces outwards. The radius of the second positioning circle 302 is R 2 =R 1sinθ, the extension straight line of the theoretical spraying direction of the first oil injection port 101 is far tangent to the second positioning direction, so it is only necessary to adjust the circumferential position of the bearing oil injection ring 1 to the specified position, so that the first oil injection port 101 faces the flow direction detection sleeve 4 on the corresponding mounting structure and maintains relative alignment; then the bearing oil injection ring 1 is fixed by the fastening structure; through the sealing effect of the first sealing ring 6 and the second sealing ring 7, a sealed oil chamber can be formed between the detection groove 201 and the bearing oil injection ring 1; then, the lubricating oil required by the specified pressure is injected into the detection groove 201 through the detection oil inlet hole 202 on the detection seat 2, the lubricating oil will enter the sealed oil chamber, and then enter from the oil inlet 103 on the outer peripheral wall of the bearing oil injection ring 1, and then be sprayed out from the first oil injection port 101 and the second oil injection port 102. Since the center of the detection inlet 401 of the flow direction detection sleeve 4 is located on the extension line of the theoretical injection direction of the first oil injection port 101, if the lubricant injected by the first oil injection port 101 can be injected into the corresponding detection inlet 401 of the flow direction detection sleeve 4, it means that the flow direction of the lubricant injected by the first oil injection port 101 is within the required range, that is, the deviation from the theoretical designed flow direction is within the required range, wherein the inner hole diameter size of the flow direction detection sleeve 4 (that is, the radius size of the detection inlet 401) is determined according to the design requirements, for example, φ3mm; through the above method, the flow direction detection of the first oil injection port 101 can be completed. (2) When it is necessary to measure whether the flow rates of the first oil injection port 101 and the second oil injection port 102 of the bearing oil injection ring 1 meet the requirements, refer to Figure 4 and Figure 5 , remove the flow direction detection sleeve 4 from the mounting structure, install an oil collecting pipe 5 on the mounting structure respectively, and connect the oil collecting pipe 5 with the corresponding first oil injection port 101, and then inject lubricating oil of the specified pressure requirement into the detection groove 201 through the detection oil inlet hole 202 on the detection seat 2, and the lubricating oil is sprayed from the first oil injection port 101 and the second oil injection port 102. The lubricating oil sprayed from the first oil injection port 101 is collected by the oil collecting pipe 5, and the collected oil volume can be measured, and the total oil volume injected can also be determined. Therefore, the injected oil volume minus the oil volume collected by all the oil collecting pipes 5 can obtain the oil volume injected by the second oil injection port 102, so that the injection flow rate of the first oil injection port 101 and the second oil injection port 102 can be determined.

[0047] In this embodiment, if Figure 4 and Figure 5As shown, when the end face of the bearing oil injection ring 1 is not provided with the first oil injection port 101 and has a groove, it is not suitable for sealing, so the second sealing ring 7 is provided on the outer peripheral wall of the plug 3, and the inner hole wall of the bearing oil injection ring 1 is pressed against the second sealing ring 7 to achieve sealing. At this time, the second oil injection port 102 on the inner hole wall of the bearing oil injection ring 1 is located outside the second sealing ring 7, that is, the second oil injection port 102 is outside the sealed oil cavity, which does not affect the normal oil injection of the second oil injection port 102. At the same time, the connection between the plug 3 and the detection groove 201 is sealed to prevent the lubricating oil from entering the contact surface between the plug 3 and the detection groove 201.

[0048] In this embodiment, if Figure 1 and Figure 4 As shown, as a preferred design, the number N of the first oil injection ports 101 of the bearing oil injection ring 1 is three and is evenly arranged along the circumference, and the number of mounting structures on the plug 3 is also three and is evenly arranged along the circumference. When the bearing oil injection ring 1 is installed in the detection seat 2, it only needs to be positioned circumferentially, so that the installed flow direction detection sleeve 4 can be accurately aligned with the corresponding first oil injection port 101. In other embodiments, the number N of the first oil injection ports 101 can also be other appropriate values.

[0049] In this embodiment, if Figure 6 and Figure 7 As shown, as a preferred design, the mounting structure on the plug 3 is a mounting through hole 301, the mounting through hole 301 is a straight hole, and its axis is tangent to the second positioning circle 302. The flow direction detection sleeve 4 is coaxially mounted in the mounting through hole 301, and the detection inlet 401 extends out of the mounting through hole 301 or is flush with the orifice of the mounting through hole 301. Further preferably, the mounting through hole 301 is used to face the orifice of the first fuel injection port 101, and its center is located in the second positioning circle 302, so that when the flow direction detection sleeve 4 is installed, it is only necessary to make the detection inlet 401 flush with the orifice, which is convenient for the installation and positioning of the flow direction detection sleeve 4.

[0050] In this embodiment, if Figure 2 and Figure 3 As shown, as a preferred design, the oil collecting pipe 5 includes a straight pipe section coaxially installed in the installation through hole 301, and the straight pipe section can be circumferentially moved in the installation through hole 301 to dock with the corresponding oil injection port, thereby facilitating the position installation of the oil collecting pipe 5. The oil collecting pipe 5 can also be a straight pipe as a whole.

[0051] In this embodiment, if Figure 4 , Figure 5 and Figure 6As shown, as a preferred design, the fastening structure includes a plurality of fastening bolts 9, which are screwed on the detection seat 2 and are located around the detection groove 201. The fastening bolts 9 are pressed against the outer edge of the bearing oil injection ring 1, so that the bearing oil injection ring 1 is pressed and fixed in the detection groove 201, and a gasket is also provided between the fastening bolts 9 and the bearing oil injection ring 1. The number and position of the fastening bolts 9 can be set as required, and can be evenly arranged along the circumference of the detection groove 201.

[0052] In this embodiment, if Figure 2 and Figure 3 As shown, as a preferred design, the detection oil inlet hole 202 in the detection seat 2 passes through to the outer peripheral surface of the detection seat 2, and a pipe joint 8 is connected to the outer peripheral surface of the detection seat 2. The pipe joint 8 is connected to the detection oil inlet hole 202, and the pipe joint 8 is used to connect to the pipeline of the oil supply device to facilitate the injection of lubricating oil.

[0053] The detection device of the utility model has the following beneficial effects:

[0054] 1. It can simultaneously complete the flow direction detection of the first oil injection port 101 of the bearing oil injection ring 1, as well as the flow rate detection of the first oil injection port 101 and the second oil injection. The detection is accurate, which solves the problem that the bearing oil injection ring 1 part is only theoretically calculated but not actually detected.

[0055] 2. The bearing oil injection ring 1 only needs to be clamped once to complete the two detection tasks of flow rate and flow direction. The detection device has a simple structure, convenient operation and high detection efficiency.

[0056] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0057] 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 detection device for detecting the oil injection flow rate and flow direction of a bearing oil injection ring, wherein N oil injection seats are provided on one side end surface of the bearing oil injection ring (1), a first oil injection port (101) is provided in the oil injection seat, and an angle θ is formed between a radial line connecting the first oil injection port (101) and the center of the bearing oil injection ring (1) and a theoretical injection direction of the first oil injection port (101), and the N first oil injection ports (101) are all located on a first positioning circle (104) concentric with the bearing oil injection ring (1), and the radius of the first positioning circle (104) is R 1 The inner hole wall surface of the bearing oil spray ring (1) is provided with a second oil spray port (102), and the outer peripheral wall is provided with an oil inlet port (103). Features: The detection device comprises a detection seat (2), a plug (3), a fastening structure, a flow direction detection sleeve (4) and an oil collecting pipe (5); the detection seat (2) is provided with a cylindrical detection groove (201) and a detection oil inlet hole (202) arranged on the inner peripheral wall of the detection groove (201); a first sealing ring (6) located outside the detection oil inlet hole (202) is embedded on the inner peripheral wall of the detection groove (201); the plug (3) is fixedly installed on the groove bottom surface of the detection groove (201); a circular ring receiving groove for receiving a bearing oil injection ring (1) is provided between the outer peripheral wall of the plug (3) and the inner peripheral wall of the detection groove (201); a second sealing ring (7) is embedded on the outer peripheral wall of the plug (3) or on the groove bottom surface of the detection groove (201); when the bearing oil injection ring (1) is installed in the circular ring receiving groove, the outer peripheral surface is in sealing contact with the first sealing ring (6), and the first sealing ring (6) is located at the oil inlet (103) ), the end face or inner hole wall of the bearing oil injection ring (1) is in sealing contact with the second sealing ring (7), a sealed oil chamber is formed between the detection groove (201) and the bearing oil injection ring (1), and the oil inlet (103) is located in the sealed oil chamber; the fastening structure can fix the bearing oil injection ring (1) in the detection groove (201); the plug (3) is provided with N mounting structures corresponding to the N first oil injection ports (101), one end of the inner hole of the flow direction detection sleeve (4) is a detection inlet (401), the flow direction detection sleeve (4) can be installed on the mounting structure or removed, after the flow direction detection sleeve (4) is installed on the mounting structure, the detection inlet (401) faces the first oil injection port (101) corresponding to the mounting structure, and the center of the detection inlet (401) is located on a second positioning circle (302) coaxial with the detection groove (201), and the radius of the second positioning circle (302) is R 2 =R 1 sinθ; the oil collecting pipe (5) can be installed on or removed from the mounting structure, and the oil collecting pipe (5) can be connected to the corresponding first oil injection port (101) after being installed on the mounting structure.

2. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 1, Features: The number N of the first oil injection ports (101) of the bearing oil injection ring (1) is greater than or equal to 2, and they are evenly arranged along the circumference, and the mounting structure on the plug (3) is evenly arranged along the circumference.

3. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 1, Features: The mounting structure on the plug (3) is a mounting through hole (301), the axis of the mounting through hole (301) is tangent to the second positioning circle (302), the flow direction detection sleeve (4) is coaxially mounted in the mounting through hole (301), and the detection inlet (401) protrudes from the mounting through hole (301) or is flush with the opening of the mounting through hole (301).

4. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 3, Features: The detection inlet (401) of the flow direction detection sleeve (4) is flush with the opening of the installation through hole (301).

5. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 1, Features: The oil collecting pipe (5) comprises a straight pipe section coaxially installed in the installation through hole (301), and the straight pipe section can move circumferentially in the installation through hole (301) until it is docked with the corresponding oil injection port.

6. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 1, Features: The fastening structure comprises a plurality of fastening bolts (9), wherein the fastening bolts (9) are threadedly connected to the detection seat (2) and are located around the detection groove (201), and the fastening bolts (9) are pressed against the outer edge of the bearing oil injection ring (1).

7. The detection device for detecting the oil injection flow rate and flow direction of the bearing oil injection ring according to claim 1, Features: It also comprises a pipe joint (8) connected to the detection seat (2), wherein the pipe joint (8) is connected to the detection oil inlet hole (202).

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