Hydraulic device for servo pulse

Abstract

The utility model relates to the technical field of pulse testing, in particular to a hydraulic device for servo pulse, which comprises an oil tank and an oil pump, an input end of the oil pump is communicated with a pipeline extending into the oil tank, and one end of the pipeline inside the oil tank is provided with an oil inlet hole; the rotating shaft is coaxially and rotationally connected with the pipeline, the end, located in the pipeline, of the rotating shaft is marked as the inner end, and the end, located outside the pipeline, of the rotating shaft is marked as the outer end; the paddle assembly is fixed at the inner end of the rotating shaft; the connecting rod is fixed at the outer end of the rotating shaft; the scraping plate is fixed to the end, away from the rotating shaft, of the connecting rod, the scraping plate is attached to the outer wall of the pipeline in the axis direction of the pipeline, and the scraping plate covers the oil inlet hole; the oil conveying device is simple in structure, impurities attached to the oil inlet hole can be automatically scraped off in the oil conveying process, and the cleaning period is delayed.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse testing, in particular to a hydraulic device for servo pulses. Background Art

[0002] In modern industrial production and precision machining, servo pulse technology is widely used in various hydraulic systems due to its ability to provide high precision, fast response, and stable power output. By precisely controlling the pressure and flow of the hydraulic system, servo pulse technology enables efficient drive and precise control of mechanical equipment. However, in actual applications, hydraulic systems often operate in harsh environments. This is particularly true during long-term operation or when handling heavy loads. Impurities such as metal shavings and dust can easily enter the hydraulic oil, reducing its purity and potentially severely impacting the system's operation.

[0003] In servo-pulse hydraulic systems, the hydraulic pump is a key component, and its performance directly impacts the stability and reliability of the entire system. The pump's inlet port is typically located inside the oil tank. To prevent contaminants like metal impurities from entering the pump, an oil inlet port is typically installed in the pump's inlet pipe. These ports have a small inner diameter and act as a filter. While this design can block large impurities to a certain extent, it lacks automatic cleaning, resulting in shorter cleaning cycles. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a servo pulse hydraulic device, which has a simple structure and can automatically scrape off impurities attached to the oil inlet during oil transportation, thereby delaying the cleaning cycle.

[0005] The servo pulse hydraulic device of the utility model includes an oil tank and an oil pump. The input end of the oil pump is connected to a pipe extending into the oil tank. An oil inlet hole is opened at one end of the pipe inside the oil tank. The device also includes:

[0006] The rotating shaft is coaxially connected to the pipeline, the end of the rotating shaft inside the pipeline is recorded as the inner end, and the end of the rotating shaft outside the pipeline is recorded as the outer end;

[0007] a blade assembly fixed to the inner end of the rotating shaft;

[0008] A connecting rod, fixed to the outer end of the rotating shaft;

[0009] The scraper is fixed to the end of the connecting rod away from the rotating shaft. The scraper is attached to the outer wall of the pipeline along the axis of the pipeline and covers the oil inlet hole.

[0010] As a preferred solution of the present invention, the scraper has a certain angle with the radial direction of the pipeline, and the scraper has an inclined surface at one end close to the pipeline.

[0011] As a preferred solution of the utility model, it also includes:

[0012] The reinforcing plate has two ends connected to the scraper and the connecting rod respectively.

[0013] As a preferred solution of the present invention, two blade assemblies are provided, and the blades of the two blade assemblies are staggered.

[0014] As a preferred solution of the present invention, a magnetic attraction component is installed on the scraper, and the magnetic attraction component is used to absorb metal impurities in the oil.

[0015] As a preferred solution of the present invention, one end of the magnetic attraction component is rotatably connected to the connecting rod.

[0016] As a preferred solution of the utility model, it also includes:

[0017] The gear ring is coaxially fixed to the outer wall of the pipe;

[0018] A gear is fixed to the other end of the magnetic assembly;

[0019] The gear meshes with the ring gear.

[0020] As a preferred solution of the utility model, it also includes:

[0021] The bearing seat is fixed on the connecting rod, and the bearing seat is rotatably connected to the magnetic attraction component.

[0022] Compared with the prior art, the beneficial effects of the present invention are: by utilizing the flow of hydraulic oil to drive the blade assembly and the rotating shaft to rotate, and then driving the external scraper to clean the oil inlet hole, an automatic cleaning function is realized, which greatly delays the cleaning cycle and can effectively avoid damage to the oil pump caused by impurity blockage, thereby improving the stability and reliability of the entire hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 yes Figure 1 sectional view of

[0025] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0026] Figure 4 It is a side view of the pipe, gear, gear ring, scraper and magnetic suction assembly;

[0027] Figure 5 It is a schematic diagram of the structure of the pipeline, shaft, blade assembly, shaft, scraper, gear, gear ring and reinforcement plate;

[0028] Markings in the attached figure: 1. Oil tank; 2. Oil pump; 3. Pipeline; 4. Oil inlet; 5. Rotating shaft; 6. Blade assembly; 7. Connecting rod; 8. Scraper; 9. Reinforcement plate; 10. Magnetic assembly; 11. Ring gear; 12. Gear; 13. Bearing seat. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "embodiment" as used herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example

[0033] Reference Figure 1-Figure 2 This embodiment provides a servo pulse hydraulic device, comprising an oil tank 1 and an oil pump 2. The input end of the oil pump 2 is connected to a pipe 3 extending into the oil tank 1. An oil inlet hole 4 is formed at one end of the pipe 3 within the oil tank 1. The oil inlet hole 4 is formed on the outer circumferential wall of the pipe 3. The device also includes:

[0034] Reference Figure 5 , the rotating shaft 5 is coaxially connected to the pipe 3 for rotation, the end of the rotating shaft 5 inside the pipe 3 is recorded as the inner end, and the end of the rotating shaft 5 outside the pipe 3 is recorded as the outer end;

[0035] The blade assembly 6 is fixed to the inner end of the rotating shaft 5. More specifically, the blade assembly 6 includes a plurality of blades. When the hydraulic oil enters the pipe 3, it generates a driving force on the blades, thereby driving the rotating shaft 5 to rotate.

[0036] A connecting rod 7 is fixed to the outer end of the rotating shaft 5;

[0037] Reference Figure 3 , the scraper 8 is fixed to the end of the connecting rod 7 away from the rotating shaft 5, the scraper 8 is attached to the outer wall of the pipe 3 along the axial direction of the pipe 3, and the scraper 8 covers the oil inlet hole 4;

[0038] The specific operation process of this device is as follows: when the hydraulic system is started, the oil pump 2 starts working and sucks hydraulic oil from the oil tank 1. The hydraulic oil enters the pipe 3 of the oil pump 2 through the oil inlet hole 4. When the hydraulic oil flows in the pipe 3, it generates a driving force on the blade assembly 6, thereby driving the rotating shaft 5, the connecting rod 7 and the scraper 8 to rotate. Since the scraper 8 is attached to the outer wall of the pipe 3 and covers the position of the oil inlet hole 4, during the rotation process, the scraper 8 will continuously remove impurities attached to the oil inlet hole 4 around the oil inlet hole 4, thereby achieving a cleaning effect.

[0039] If the scraper 8 is arranged along the radial direction of the pipe 3, it will be subjected to greater resistance during the rotation of the scraper 8. As a preferred solution of the present invention, refer to Figure 4 The scraper 8 has a certain angle with the radial direction of the pipe 3. The inclined scraper 8 design can significantly reduce the resistance during the rotation process, making the scraper 8 move more smoothly and reducing energy consumption; the scraper 8 has a bevel at one end close to the pipe 3. The bevel design helps to better scrape off impurities around the oil inlet 4, ensuring a more thorough cleaning effect and reducing residues.

[0040] Since only one side of the connecting rod 7 is fixed on the connecting rod 7, it is possible that it will break during the rotation process. As a preferred solution of the present invention, refer to Figure 3 and Figure 5 , also includes:

[0041] The reinforcing plate 9 has two ends connected to the scraper 8 and the connecting rod 7 respectively. The reinforcing plate 9 can be a triangular plate or a long rod. The reinforcing plate 9 connects the scraper 8 and the connecting rod 7, thereby improving the connection reliability between the connecting rod 7 and the scraper 8 and preventing the two from breaking during rotation.

[0042] A single blade assembly 6 may cause unstable rotation under the action of hydraulic oil flow, resulting in large vibration and noise. As a preferred embodiment of the present invention, refer to Figure 5 The number of blade assemblies 6 is two, and the blades of the two blade assemblies 6 are staggered. The staggered arrangement of the blades of the two blade assemblies 6 can better balance the force generated by the hydraulic oil flow, making the rotation of the rotating shaft 5 more stable and reducing vibration and noise.

[0043] Although the scraper 8 can temporarily scrape away impurities around the oil inlet 4, if these impurities cannot be effectively collected, they are likely to fall back into the oil and flow to the oil inlet 4 again, causing repeated blockages and affecting the stability and reliability of the system. Figure 3-Figure 5 A magnetic component 10 is installed on the scraper 8. The magnetic component 10 is used to absorb metal impurities in the oil. The magnetic component 10 can firmly absorb the metal impurities scraped off by the scraper 8 to prevent them from falling back into the oil, thereby ensuring that the oil inlet 4 is unobstructed.

[0044] If the magnetic component 10 is fixed, the adsorption area of ​​the magnetic component 10 is limited, which will cause excessive local adsorption of the magnetic component 10, resulting in a decrease in adsorption capacity and even saturation. As a preferred solution of the present invention, refer to Figure 3-Figure 5 One end of the magnetic component 10 is rotatably connected to the connecting rod 7, and the position can be freely adjusted during the rotation of the scraper 8, so that different parts of the magnetic component 10 can contact and absorb metal impurities in the oil, effectively expanding the adsorption area.

[0045] The magnetic component 10 has a certain randomness in its rotation, which may lead to uneven adsorption. As a preferred solution of the present invention, refer to Figure 3-Figure 5 , also includes:

[0046] The gear ring 11 is coaxially fixed to the outer wall of the pipe 3;

[0047] The gear 12 is fixed to the other end of the magnetic assembly 10;

[0048] Among them, the gear 12 is meshed with the ring gear 11;

[0049] When the scraper 8 rotates, the magnetic component 10 fixed thereon also rotates. Since a gear 12 is fixed to the other end of the magnetic component 10, and the gear 12 is engaged with the ring gear 11 fixed on the outer wall of the pipe 3, the magnetic component 10 can rotate on its own when rotating, avoiding the problem of uneven adsorption caused by randomness.

[0050] If one end of the magnetic component 10 is rotatably connected to the connecting rod 7, it is difficult to ensure the rotation stability of the magnetic component 10. As a preferred embodiment of the present invention, referring to Figure 3 , also includes:

[0051] The bearing seat 13 is fixed on the connecting rod 7. The bearing seat 13 is rotatably connected to the central axis of the magnetic attraction component 10. The addition of the bearing seat 13 ensures that the rotation of the magnetic attraction component 10 is more stable.

[0052] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A servo pulse hydraulic device, comprising an oil tank (1) and an oil pump (2), wherein the input end of the oil pump (2) is connected to a pipe (3) extending into the oil tank (1), and an oil inlet hole (4) is formed at one end of the pipe (3) inside the oil tank (1); characterized in that: Also includes: A rotating shaft (5) is coaxially connected to the pipe (3) for rotation, wherein the end of the rotating shaft (5) located inside the pipe (3) is referred to as the inner end, and the end of the rotating shaft (5) located outside the pipe (3) is referred to as the outer end; A blade assembly (6) is fixed to the inner end of the rotating shaft (5); A connecting rod (7) is fixed to the outer end of the rotating shaft (5); A scraper (8) is fixed to the end of the connecting rod (7) away from the rotating shaft (5), and the scraper (8) is attached to the outer wall of the pipeline (3) along the axis direction of the pipeline (3), and the scraper (8) covers the oil inlet hole (4).

2. The servo pulse hydraulic device according to claim 1, wherein: The scraper (8) has a certain angle with the radial direction of the pipe (3), and the scraper (8) has an inclined surface at one end close to the pipe (3).

3. The servo pulse hydraulic device according to claim 1, wherein: Also includes: A reinforcing plate (9), wherein both ends of the reinforcing plate (9) are respectively connected to the scraper (8) and the connecting rod (7).

4. The servo pulse hydraulic device according to claim 1, wherein: The number of the blade assemblies (6) is two, and the blades of the two blade assemblies (6) are staggered.

5. The servo pulse hydraulic device according to claim 1, wherein: A magnetic attraction component (10) is mounted on the scraper (8), and the magnetic attraction component (10) is used to absorb metal impurities in the oil.

6. The servo pulse hydraulic device according to claim 5, characterized in that: One end of the magnetic attraction component (10) is rotatably connected to the connecting rod (7).

7. The servo pulse hydraulic device according to claim 6, wherein: Also includes: A gear ring (11) is coaxially fixed to the outer wall of the pipe (3); A gear (12) is fixed to the other end of the magnetic attraction component (10); Wherein, the gear (12) is meshed with the ring gear (11).

8. The servo pulse hydraulic device according to claim 6, wherein: Also includes: The bearing seat (13) is fixed on the connecting rod (7), and the bearing seat (13) is rotatably connected to the magnetic attraction component (10).

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