All-metal hydraulic oscillator
By employing an all-metal structure design and precise flow regulation, the problem of unstable jetting in traditional hydraulic oscillators has been solved, achieving stable fluid jetting and efficient operation of the oscillator, thereby improving drilling efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional hydraulic oscillators have simple jet components, unstable fluid jet direction, and difficulty in controlling jet pressure and angle, resulting in severe fluid jet diffusion and the inability to form a concentrated, high-speed jet. This affects the oscillation intensity and frequency stability of the oscillator, making it difficult to descend to the normal depth of coiled tubing.
It adopts an all-metal structure design, including a first outer cylinder, a spiral shell and a spiral rod made of wear-resistant stainless steel, combined with a high-strength aluminum alloy injection assembly and a hard alloy nozzle. The fluid kinetic energy is converted through the cooperation of the spiral shell and the spiral rod. The injection assembly regulates the flow rate, reduces the impact of external vibration, and ensures that the fluid is injected at a stable pressure and angle.
It achieves precise control of fluid jetting, improves the oscillation intensity and frequency stability of the oscillator, extends the service life of the equipment, and enhances drilling efficiency and drilling results.
Smart Images

Figure CN224093363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oscillator equipment technology, and in particular to an all-metal hydraulic oscillator. Background Technology
[0002] In engineering fields such as oil drilling and geological exploration, hydraulic oscillators, as key equipment that utilizes fluid energy to generate oscillations, play an important role in improving drilling efficiency and drilling results. However, traditional hydraulic oscillators have many technical bottlenecks in fluid control and oscillation performance, which seriously restrict their application effect.
[0003] Traditional hydraulic oscillators have simple jet components, unstable fluid jet direction, and lack effective control over jet pressure and angle. The nozzle shape and size are poorly designed, resulting in severe fluid diffusion during jetting and an inability to form a concentrated, high-speed jet. In geological exploration operations, this unstable jetting effect is insufficient to generate enough reaction force to drive the oscillator to oscillate continuously, resulting in large fluctuations in oscillation intensity and frequency. This prevents the coiled tubing from being lowered to a sufficient depth. Therefore, these problems need to be addressed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an all-metal hydraulic oscillator.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an all-metal hydraulic oscillator, comprising a first outer cylinder, an upper connector threadedly connected to the inner wall of the top of the first outer cylinder, an upper bearing connector provided at the bottom of the first outer cylinder, a spiral shell fixedly connected to the bottom of the upper bearing connector, a second outer cylinder welded to the bottom of the spiral shell, an oscillation cavity formed on the inner wall of the first outer cylinder, a spiral rod provided inside the spiral shell, a jetting assembly fixedly connected to one end of the oscillator, and the jetting assembly inserted into the second outer cylinder.
[0006] Preferably, the spraying assembly includes a spraying seat located at one end of the screw rod, a flow regulating ring installed inside the spraying seat, a spray pipe fixedly connected to one end of the spraying seat, the spraying seat having a cylindrical structure, and the spraying seat being made of high-strength aluminum alloy.
[0007] Preferably, a nozzle is installed at one end of the nozzle, the outer wall of the nozzle is provided with an external thread groove, the nozzle is screwed into the second outer cylinder through the external thread groove, the nozzle has a streamlined structure, and the nozzle is made of hard alloy material.
[0008] Preferably, the first outer cylinder has a cylindrical structure, is made of wear-resistant stainless steel, and has an anti-corrosion coating on its outer wall.
[0009] Preferably, a connecting groove is provided on one side wall of the upper bearing connector, the first outer cylinder and the upper bearing connector are fixed by the connecting groove, and a connecting spline is inserted into the inner wall of the upper bearing connector.
[0010] Preferably, the upper connector is made of high-strength alloy steel, one end of the upper connector is fixedly connected to a guide post, the outer wall of the guide post is fitted with a spring short section for shock absorption, and the other end of the guide post abuts against one end of the upper bearing connector.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the oscillation chamber and the spring section effectively reduces the impact of external vibration on the internal structure of the oscillator, and reduces the wear and loosening of parts caused by vibration; the cooperation between the spiral shell and the spiral rod can efficiently realize the conversion of fluid kinetic energy into mechanical energy, providing a stable power output for the oscillator; the setting of the injection component can achieve precise adjustment of fluid flow to ensure that the fluid is injected at a suitable pressure and angle, generating a stable reaction force, realizing efficient oscillation, improving the working performance of the oscillator, and solving the problems of non-adjustable fluid flow and poor injection effect in traditional hydraulic oscillators, resulting in unstable oscillation and low efficiency. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model;
[0014] Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model;
[0015] Figure 3 This is a schematic diagram of the spring short section structure proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the internal component structure proposed in this utility model.
[0017] The numbers in the diagram are: 1. Upper connector; 2. First outer cylinder; 3. Upper bearing connector; 4. Spiral housing; 5. Second outer cylinder; 6. Oscillating chamber; 7. Rotator; 8. Injection assembly; 9. Nozzle; 10. Spring short section; 11. Spiral rod; 12. Nozzle pipe. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Example: See Figure 1-4 The all-metal hydraulic oscillator of this utility model includes a first outer cylinder 2. An upper connector 1 is threaded onto the inner wall of the top of the first outer cylinder 2. The upper connector 1 ensures a secure and reliable connection between the oscillator and external equipment, withstands pressure during high-pressure fluid transmission, and guarantees stable fluid input. An upper bearing connector 3 is located at the bottom of the first outer cylinder 2, facilitating a reliable connection between the first outer cylinder 2 and the spiral shell 4, ensuring the continuity of the entire oscillator structure. The spiral shell 4 is fixedly connected to the bottom of the upper bearing connector 3, facilitating efficient conversion of fluid kinetic energy into mechanical energy and providing a stable oscillation power source for the oscillator. A second outer cylinder 5 is welded to the bottom of the spiral shell 4, facilitating... The first outer cylinder 2 provides a stable mounting base for the injection assembly 8, ensuring that the injection assembly 8 is fixed in position under the action of high-pressure fluid, so that the fluid injection is stable and precise. The inner wall of the first outer cylinder 2 forms an oscillation cavity 6, which facilitates the provision of a suitable oscillation space for the fluid, so that the fluid forms a stable oscillation wave in the cavity and produces a continuous oscillation effect. The spiral shell 4 is provided with a spiral rod 11, which facilitates the efficient conversion of fluid kinetic energy into mechanical energy, providing a stable power output for the oscillator. One end of the rotator 7 is fixedly connected to the injection assembly 8, which facilitates the precise adjustment of the fluid flow rate through the flow regulating ring, so that the oscillator can work stably under different working conditions. The injection assembly 8 is inserted into the second outer cylinder 5.
[0020] In this utility model, the spray assembly 8 includes a spray seat located at one end of the screw rod 11, a flow regulating ring installed inside the spray seat, and a nozzle 12 fixedly connected to one end of the spray seat. The spray seat has a cylindrical structure and is made of high-strength aluminum alloy. The nozzle 12 facilitates stable fluid transmission and spray effect, ensuring that the oscillator can generate stable and continuous oscillation, thus improving the working performance of the equipment. A nozzle 9 is installed at one end of the nozzle 12. The outer wall of the nozzle 9 has an external thread groove. The nozzle 9 is screwed into the second outer cylinder 5 through the external thread groove. The nozzle 9 has a streamlined structure and is made of hard alloy material. The streamlined design of the nozzle 9 facilitates the optimization of fluid spray effect, improves spray speed and stability, and enhances the oscillation effect and working efficiency of the oscillator. The outer cylinder 2 is a cylindrical structure. The first outer cylinder 2 is made of wear-resistant stainless steel and has an anti-corrosion coating on its outer wall. The upper bearing connector 3 has a connecting groove on one side wall. The first outer cylinder 2 and the upper bearing connector 3 are fixed together by the connecting groove. The inner wall of the upper bearing connector 3 is fitted with a connecting spline, which helps to strengthen the connection between the first outer cylinder 2 and the upper bearing connector 3. The upper connector 1 is made of high-strength alloy steel. A guide post is fixed to one end of the upper connector 1. A spring short section 10 for shock absorption is sleeved on the outer wall of the guide post. The other end of the guide post abuts against one end of the upper bearing connector 3. The spring short section 10 helps to effectively reduce the impact of external vibration on the internal structure of the oscillator, reduce the wear and loosening of parts caused by vibration, and extend the service life of the equipment.
[0021] Working Principle: In use, high-pressure fluid first enters the all-metal hydraulic oscillator through the upper connector 1. The upper connector 1 is made of high-strength alloy steel and is threadedly connected to the first outer cylinder 2 to ensure a tight connection and withstand the pressure of the high-pressure fluid. The guide post at one end of the upper connector 1 is inserted into the upper bearing connector 3. Then, the fluid enters the oscillation chamber 6 formed on the inner wall of the first outer cylinder 2. The first outer cylinder 2 is made of wear-resistant stainless steel and has an anti-corrosion coating, providing a stable space for the oscillation chamber 6. Inside the oscillation chamber 6, the fluid begins to generate preliminary oscillations through the action of the internal structure. Then, the fluid that has undergone preliminary oscillation in the oscillation chamber 6 enters the spiral shell 4. The spiral shell 4 is equipped with a spiral rod 11. The high-pressure fluid drives the spiral rod 11 to rotate, converting the kinetic energy of the fluid into the rotation of the spiral rod 11. The mechanical energy is transferred to the rotator 7. The rotator 7 rotates under the drive of the rotator 11, converting the mechanical energy transferred by the rotator 11 into the rotational power of the jet assembly 8, driving the jet assembly 8 to work. The stable rotation of the rotator 7 ensures the stability of the jet direction and the uniformity of the fluid jet. Finally, the jet assembly 8 includes a jet seat, a flow regulating ring and a nozzle 12. The flow regulating ring in the jet seat can adjust the fluid flow according to the needs of different working scenarios. The fluid is accelerated and guided at the nozzle 9 and ejected in the form of a high-speed, stable jet, generating a reaction force, thereby achieving its working purpose. This concludes the use of the all-metal hydraulic oscillator.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An all-metal hydraulic oscillator, comprising a first outer cylinder (2), characterized in that: The first outer cylinder (2) has an upper connector (1) threadedly connected to the inner wall of the top. The first outer cylinder (2) has an upper bearing connector (3) at the bottom. The upper bearing connector (3) has a spiral housing (4) fixedly connected to the bottom. The spiral housing (4) has a second outer cylinder (5) welded to the bottom. The first outer cylinder (2) has an oscillation cavity (6) formed on the inner wall. The spiral housing (4) has a spiral rod (11) inside. One end of the spiral rod (11) has a rotator (7). One end of the rotator (7) has a spray assembly (8) fixedly connected to it. The spray assembly (8) is inserted into the second outer cylinder (5). The spray assembly (8) includes a spray seat located at one end of the screw rod (11), a flow regulating ring is installed inside the spray seat, and a nozzle (12) is fixedly connected to one end of the spray seat. The nozzle (9) is installed at one end of the nozzle (12). The outer wall of the nozzle (9) is provided with an external thread groove. The nozzle (9) is screwed into the second outer cylinder (5) through the external thread groove.
2. The all-metal hydraulic oscillator according to claim 1, characterized in that: The first outer cylinder (2) is a cylindrical structure, the first outer cylinder (2) is made of wear-resistant stainless steel, the outer wall of the first outer cylinder (2) is provided with an anti-corrosion coating, the spray seat is a cylindrical structure, the spray seat is made of high-strength aluminum alloy; the nozzle (9) is a streamlined structure, the nozzle (9) is made of hard alloy.
3. The all-metal hydraulic oscillator according to claim 1, characterized in that: The upper bearing connector (3) has a connecting groove on one side wall. The first outer cylinder (2) and the upper bearing connector (3) are fixed by the connecting groove. The upper bearing connector (3) has a connecting spline inserted into its inner wall.
4. The all-metal hydraulic oscillator according to claim 1, characterized in that: The upper connector (1) is made of high-strength alloy steel. One end of the upper connector (1) is fixed with a guide post. The outer wall of the guide post is fitted with a spring short section (10) for shock absorption. The other end of the guide post abuts against one end of the upper bearing connector (3).