Quantitative annular lubricating oil spray pipe

By using a ring structure design and a high-temperature resistant sealing ring, the problems of unstable flow and stress concentration caused by vibration of the lubricating oil nozzle are solved, achieving stable flow and durability of the lubricating oil nozzle, making it suitable for high-horsepower, high-torque gearbox lubrication systems.

CN224261420UActive Publication Date: 2026-05-19LINHAI AOFA PIPES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINHAI AOFA PIPES CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional lubricating oil nozzles cannot effectively reduce the impact of vibration during use, leading to unstable lubricating oil flow and stress concentration, which reduces the reliability and service life of the nozzle.

Method used

The ring structure design uses a ring steel pipe made of carbon steel, a perforated straight oil spray pipe and a tee-hollow joint welded component, combined with a high-temperature resistant fluororubber sealing ring, to ensure stable flow of lubricating oil in the spray pipe and reduce stress concentration caused by vibration.

Benefits of technology

It improves the reliability and service life of the lubricating oil nozzle, and has high temperature resistance, vibration fatigue resistance and vibration resistance, ensuring the metering of lubricating oil, and is suitable for the metering injection requirements of high horsepower and high torque transmission lubricating oil systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a quantitative annular lubricating oil spray pipe, which belongs to the technical field of lubricating oil spray pipes and comprises an annular steel pipe, a punching oil spray straight pipe and two tee-hollow joint welding parts. The top face of one three-way-hollow connector welding piece is perpendicularly installed in the punching oil injection straight pipe, the annular steel pipe is of a circular structure formed by combining two annular semicircular pipes, and the opposite faces of the two annular semicircular pipes are each provided with a first oil through hole used for oil injection. Compared with the prior art, more reasonable structural layout and material selection are adopted, so that the influence caused by vibration is effectively reduced, the design can ensure that lubricating oil stably flows in the spray pipe, meanwhile, stress concentration generated by vibration is reduced, and therefore the reliability of the spray pipe is improved, and the service life of the spray pipe is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of lubricating oil spray nozzle technology, specifically a quantitative annular lubricating oil spray nozzle. Background Technology

[0002] A lubricating oil nozzle is a device used to precisely spray lubricating oil to specific locations. The lubricating oil nozzle relies on the pressure provided by the lubricating oil supply system to make the lubricating oil flow inside the nozzle, and then spray the lubricating oil at a certain speed and angle to the parts that need lubrication through the nozzle.

[0003] However, traditional lubricating oil nozzles have the following problems during use: they cannot effectively reduce the impact of vibration, cannot ensure the stable flow of lubricating oil in the nozzle, and may increase the stress concentration caused by vibration, thereby reducing the reliability and service life of the nozzle. In order to solve the above problems, a quantitative annular lubricating oil nozzle is needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a quantitative annular lubricating oil nozzle, which solves the problems of traditional lubricating oil nozzles in effectively reducing the impact of vibration during use, failing to ensure stable flow of lubricating oil within the nozzle, and potentially increasing stress concentration caused by vibration, thereby reducing the reliability and service life of the nozzle.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative annular lubricating oil spray pipe, comprising an annular steel pipe, a perforated oil spraying straight pipe, and two T-joint welded components, wherein both ends of the annular steel pipe are installed perpendicularly to the T-joint welded components, and the top surface of one of the T-joint welded components is installed perpendicularly to the interior of the perforated oil spraying straight pipe.

[0006] The annular steel pipe is composed of two annular semicircular pipes forming a circular structure. Each of the two annular semicircular pipes has a first oil passage hole for oil spraying on its opposite side. The perforated oil spraying straight pipe has several second oil passage holes for oil spraying on its side near the annular steel pipe. The perforated oil spraying straight pipe and the tee-hollow joint welded part are provided with a sealing element for sealing.

[0007] Furthermore, both the first oil passage and the several second oil passages are circular holes.

[0008] Furthermore, the number of the second oil passage holes is five, and the second oil passage holes are equidistantly arranged on the surface of the perforated oil injection straight pipe.

[0009] Furthermore, the sealing element is a high-temperature resistant fluororubber sealing ring structure.

[0010] Furthermore, the annular steel pipe, the perforated oil spraying straight pipe, and the two tee-hollow joint welded components are all made of carbon steel and have been treated with environmentally friendly galvanizing.

[0011] Furthermore, both of the aforementioned tee-hollow joint welded components include a tee joint and a hollow joint fixedly installed inside the upper side of the tee joint, and the hollow joint and the tee joint are fixed by welding.

[0012] Furthermore, the high temperature resistance range of the seal is defined as α, and 0°≤α≤230°.

[0013] Compared with the prior art, the present invention provides a quantitative annular lubricating oil injection nozzle, which has the following beneficial effects:

[0014] 1. This device uses a ring structure for insertion and adopts a more reasonable structural layout and material selection to effectively reduce the impact of vibration. This design can ensure the stable flow of lubricating oil in the nozzle, while reducing stress concentration caused by vibration, thereby improving the reliability and service life of the nozzle. Therefore, this device has good high temperature resistance, vibration fatigue resistance, and metering performance.

[0015] 2. The device utilizes a ring-shaped steel pipe, a perforated straight oil spray pipe, and two T-junction-hollow joint welded components all made of carbon steel, which increases the overall service life. Furthermore, the five second oil passages effectively control the flow rate of the gearbox lubricating oil, enabling quantitative oil spraying and cooling under a certain oil pressure. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2 This is a three-dimensional view of the welded tee-hollow connector of this utility model;

[0018] Figure 3 This is a diagram showing the assembly of the annular steel pipe and the tee-hollow joint welded components of this utility model;

[0019] Figure 4 This is a three-dimensional view of the annular steel pipe of this utility model.

[0020] In the figure: 1. T-joint welded part; 101. Annular semi-circular pipe; 102. First oil passage hole; 2. Annular steel pipe; 201. Second oil passage hole; 3. Perforated oil spray straight pipe; 301. T-joint; 302. Hollow joint; 4. Seal. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This embodiment of a quantitative annular lubricating oil spray pipe includes an annular steel pipe 2, a perforated oil spraying straight pipe 3, and two T-joint-hollow joint welded parts 1. Each of the two T-joint-hollow joint welded parts 1 includes a T-joint 301 and a hollow joint 302 fixedly installed inside the upper side of the T-joint 301. The hollow joint 302 and the T-joint 301 are fixed by welding. Both ends of the annular steel pipe 2 are installed perpendicularly to the T-joint-hollow joint welded parts 1, and the top surface of one of the T-joint-hollow joint welded parts 1 is installed perpendicularly to the inside of the perforated oil spraying straight pipe 3. The annular steel pipe 2, the perforated oil spraying straight pipe 3, and the two T-joint-hollow joint welded parts 1 are all made of carbon steel and have environmentally friendly galvanized treatment on the surface.

[0023] The annular steel pipe 2 is formed by combining two annular semicircular pipes 101 to form a circular structure. The opposite sides of the two annular semicircular pipes 101 are provided with first oil passage holes 102 for oil spraying. The perforated oil spraying straight pipe 3 is provided with several second oil passage holes 201 for oil spraying on the side near the annular steel pipe 2. The first oil passage holes 102 and several second oil passage holes 201 are all circular holes. The number of several second oil passage holes 201 is five, and the several second oil passage holes 201 are equidistantly arranged on the surface of the perforated oil spraying straight pipe 3. The arrangement of the second oil passage holes 201 can better ensure the lubricating oil discharge effect. The contact position between the perforated oil spraying straight pipe 3 and the tee-hollow joint welded part 1 is provided with a sealing element 4 for sealing. The sealing element 4 is a high temperature resistant fluororubber sealing ring structure. The high temperature resistance range of the sealing element 4 is set to α, and 0°≤α≤230°. The use of high temperature resistant fluororubber sealing ring has good high temperature resistance, vibration fatigue resistance and sealing reliability.

[0024] The working principle of the above embodiments is as follows:

[0025] This device utilizes the first oil passage 102 on the annular semi-circular tube 101 and five second oil passages 201 distributed on the perforated injection straight tube 3 to effectively control the flow rate of transmission lubricating oil. Through a special design, the device is inserted in an annular structure during installation, employing a more reasonable structural layout and material selection to effectively reduce the impact of vibration. This design ensures stable flow of lubricating oil within the nozzle while reducing stress concentration caused by vibration, thereby improving the reliability and service life of the nozzle. The device features excellent high-temperature resistance, vibration fatigue resistance, and metering capability, and is widely used in high-horsepower, high-torque transmission lubricating oil systems, possessing broad market prospects.

[0026] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A quantitative annular lubricating oil nozzle comprising an annular steel pipe (2), a punched oil jet straight pipe (3), two tee-hollow joint weldments (1), characterized in that: Both ends of the annular steel pipe (2) are installed perpendicularly to the tee-hollow joint welded parts (1), and the top surface of one of the tee-hollow joint welded parts (1) is installed perpendicularly to the inside of the punched oil spraying straight pipe (3). The annular steel pipe (2) is formed by combining two annular semicircular pipes (101) to form a circular structure. The two annular semicircular pipes (101) are provided with first oil passage holes (102) for oil spraying on opposite sides. The perforated oil spraying straight pipe (3) is provided with several second oil passage holes (201) for oil spraying on the side close to the annular steel pipe (2). The perforated oil spraying straight pipe (3) and the tee-hollow joint welded part (1) are provided with sealing parts (4) for sealing.

2. A metering ring lubricating oil jet according to claim 1 wherein: The first oil passage (102) and several second oil passages (201) are all circular holes.

3. A metering ring lubricating oil jet according to claim 2 wherein: The number of the second oil passage holes (201) is five, and the second oil passage holes (201) are equidistantly arranged on the surface of the perforated oil injection straight pipe (3).

4. A metering ring lubricating oil jet according to claim 1 wherein: The sealing element (4) is a high-temperature resistant fluororubber sealing ring structure.

5. A metering ring lubricating oil jet according to claim 1 wherein: The annular steel pipe (2), the perforated oil spraying straight pipe (3), and the two tee-hollow joint welded parts (1) are all made of carbon steel and have environmentally friendly galvanized treatment on the surface.

6. A metering ring lubricating oil jet according to claim 1 wherein: Both of the aforementioned tee-hollow joint welded components (1) include a tee joint (301) and a hollow joint (302) fixedly installed inside the upper side of the tee joint (301), and the hollow joint (302) and the tee joint (301) are fixed by welding.

7. A metering ring lubricating oil jet according to claim 6 wherein: The high temperature resistance range of the sealing element (4) is defined as α, and 0°≤α≤230°.