Electromagnetic liquid material pushing device

Abstract

The application discloses an electromagnetic liquid material pushing device, which comprises a material cylinder, a plurality of electromagnetic element groups, a piston, a magnetic pole group, a front end cover and a rear end cover. The electromagnetic element groups are uniformly arranged on the outside of the material cylinder along the axial direction of the material cylinder. Each electromagnetic element group comprises a plurality of electromagnetic elements. The piston is arranged in the inside of the material cylinder. The magnetic pole group is arranged in the cavity of the piston. The front end cover and the rear end cover are arranged at the two ends of the material cylinder respectively. A magnetic core shaftless turbine is arranged in the material cylinder and close to the end of the front end cover and corresponds to the first electromagnetic element group. The electromagnetic element groups generate a magnetic field after being electrified to drive the piston, and mechanical transmission components such as motors and lead screws are omitted, so that the structure of the pushing device is more compact, the response is faster, there is no mechanical backlash, and the precision is high.

Description

Technical Field

[0001] This application relates to the field of fluid transport technology, and in particular to an electromagnetic liquid material pushing device. Background Technology

[0002] Traditional liquid material delivery devices, such as peristaltic pumps, screw pumps, and plunger pumps, mostly rely on a rotary motor to convert the motion into linear motion via a mechanical transmission mechanism (such as a lead screw or crank-connecting rod) to drive a piston or squeeze a hose. These methods suffer from problems such as complex structure, large size, mechanical backlash, limited control precision, and difficulty in achieving complex motion curves. Especially for applications requiring high precision and micro-volume delivery, traditional methods are insufficient. Utility Model Content

[0003] An embodiment of this application provides an electromagnetic liquid material pushing device.

[0004] To achieve the above objectives, embodiments of this application provide an electromagnetic liquid material delivery device, comprising: Barrel; Several rows of electromagnetic element groups are evenly distributed along the axial direction of the material cylinder on the outside of the material cylinder; each electromagnetic element group includes several electromagnetic elements. The piston is located inside the barrel; The magnetic pole assembly is located inside the piston cavity; The front cover and the rear cover are respectively located at both ends of the material cylinder; The magnetic core shaftless turbine is located inside the barrel and near the end of the front cover, and corresponds to the first set of electromagnetic components.

[0005] In one embodiment, the electromagnetic element includes a coil and a magnetic core, with the magnetic core sleeved on the coil.

[0006] In one embodiment, the magnetic pole group includes several groups of parallel magnetic pole units, and the magnetic pole group includes N poles and S poles; Each magnetic pole unit includes several magnetic poles; the magnetic poles include N poles and / or S poles; The number of magnetic poles in each magnetic pole unit is equal to the number of electromagnetic elements in the electromagnetic element group, and their positions correspond one-to-one. In one embodiment, a fixed connecting rod is provided between adjacent electromagnetic component groups, and the two ends of the fixed connecting rod are fixedly connected to the front end cover and the rear end cover, respectively.

[0007] In one embodiment, each column of electromagnetic components is covered with a fixing plate, and the two ends of the fixing plate are fixedly connected to the front cover and the rear cover, respectively.

[0008] In one embodiment, a groove is formed on the outside of the piston along the radial direction of the barrel, and a sealing ring is fitted inside the groove.

[0009] In one embodiment, two grooves are formed on the outside of the piston, and a sealing ring is fitted in each groove.

[0010] This application has the following advantages over the prior art: This application provides an electromagnetic liquid material pushing device. When the electromagnetic element group is energized, it generates a magnetic field to drive a piston, eliminating the need for mechanical transmission components such as motors and lead screws. This results in a more compact structure, faster response, no mechanical backlash, and high precision. The radially uniformly distributed electromagnetic elements ensure a uniform force exerted by the magnetic field on the piston, leading to smoother piston operation. The multi-row electromagnetic element group allows for segmented application of the driving force, resulting in smooth piston operation and controllable thrust. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the electromagnetic liquid material pushing device according to an embodiment of this application. Figure 1 ; Figure 2 for Figure 1 Axial section view; Figure 3 This is a schematic diagram of the structure of the electromagnetic liquid material pushing device according to an embodiment of this application. Figure 2 ; Figure 4 for Figure 3 Axial section view; Figure 5 This is a perspective view of an electromagnetic liquid material pushing device according to an embodiment of this application. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0015] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0016] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0017] like Figures 1-4 The diagram shows a schematic of the structure of the electromagnetic liquid material pushing device provided in the embodiment of this application.

[0018] Reference Figures 1-4 This application provides an electromagnetic liquid material delivery device, comprising: Cylinder 1, Several rows of electromagnetic element groups are evenly distributed on the outside of the material cylinder 1 along the axial direction of the material cylinder 1; each electromagnetic element group includes several electromagnetic elements 2. Piston 3 is located inside barrel 1; The magnetic pole assembly is arranged inside the cavity of piston 3; The front cover 4 and the rear cover 5 are respectively located at both ends of the material cylinder 1; The magnetic core shaftless turbine 6 is located inside the barrel 1 and near the end of the front cover 4, and corresponds to the first set of electromagnetic components.

[0019] Specifically, the barrel 1 can be a hollow cylindrical structure, and the inner wall of the barrel 1 has high wear resistance so that the piston 3 can reciprocate inside the barrel 1 for a long time.

[0020] The number of rows in the electromagnetic component group can be set according to actual needs, and the number of electromagnetic components in each electromagnetic component group can also be set according to actual needs, such as setting 6 (e.g., ...). Figure 1 , Figure 2 As shown), for example, setting 8 (e.g.) Figure 3 , Figure 4 (as shown). By arranging the electromagnetic components in an array, the driving force can be evenly distributed, the piston 3 can run smoothly, and the thrust can be large.

[0021] The front cover 4 and piston 3 form a hopper, while a power supply cable connects piston 3 and rear cover 5. An opening is provided in the front cover 4 to allow liquid to be drawn into or pushed out of the hopper.

[0022] In use, the electromagnetic components are energized sequentially. After being energized, the electromagnetic components generate a magnetic field that moves along the axial direction of the barrel 1. This magnetic field interacts with the magnetic pole group inside the piston 3 to generate electromagnetic thrust, which drives the piston 3 to make precise linear movements inside the barrel 1 to push out or draw in the liquid to be pushed.

[0023] The magnetic core shaftless turbine 6, due to its own magnetism, can be rotated by the magnetic field of the front electromagnetic component group, so that the liquid material is stirred during the pushing process, preventing the material from settling and ensuring the material is uniform. It is especially suitable for high viscosity liquids, suspensions, etc.

[0024] In this embodiment, the electromagnetic component group generates a magnetic field after being energized to drive the piston, eliminating the need for mechanical transmission components such as motors and lead screws. This makes the pushing device more compact, faster-responding, and free of mechanical backlash, resulting in high precision. The radially uniformly distributed electromagnetic components ensure that the magnetic field exerts a uniform force on the piston, making the piston run more smoothly. The arrangement of multiple rows of electromagnetic component groups allows the driving force to be applied in segments, resulting in smooth piston operation and controllable thrust.

[0025] In one embodiment, the electromagnetic element 2 includes a coil 21 and a magnetic core 22, with the magnetic core 22 sleeved on the coil 21.

[0026] Specifically, when current passes through coil 21, a magnetic field is generated inside and around coil 21 according to the principle of electromagnetic induction.

[0027] The magnetic core 22 can be made of high magnetic permeability materials such as ferrite and silicon steel sheets to concentrate and enhance the magnetic field, and guide the magnetic lines of force more effectively to the piston 3 area inside the barrel 1, thereby significantly improving the utilization efficiency of the magnetic field and the electromagnetic thrust.

[0028] In this embodiment, the magnetic core can greatly enhance the magnetic field strength and directionality, improve electromagnetic conversion efficiency, and enable the device to generate greater thrust under the same current. Furthermore, the electromagnetic component consists of a coil and a magnetic core, resulting in a simple structure that is easy to manufacture and assemble.

[0029] In one embodiment, the magnetic pole group includes several groups of parallel-arranged magnetic pole units 7, and the magnetic pole group includes N poles and S poles; Each magnetic pole unit 7 includes several magnetic poles; the magnetic poles include N poles and / or S poles; The number of magnetic poles in each magnetic pole unit 7 is equal to the number of electromagnetic elements in the electromagnetic element group, and their positions correspond one-to-one.

[0030] Specifically, the smallest unit in a magnetic pole group is a magnetic pole, which can be an N pole and a S pole. Each magnetic pole unit 7 can contain only N poles, only S poles, or a combination of N and S poles. When the magnetic pole unit 7 is a combination of N and S poles, the combination can be arranged according to actual needs, and will not be listed here.

[0031] Several groups of magnetic pole units 7, consisting of N and S poles, are arranged in parallel according to actual needs to form magnetic pole groups.

[0032] The number of magnetic poles in each magnetic pole unit 7 is equal to the number of electromagnetic elements in the electromagnetic element group. Assuming each electromagnetic element group includes 8 electromagnetic elements, then each magnetic pole unit 7 within the piston 3 corresponds to 8 magnetic poles, such as... Figure 4 As shown, each magnetic pole corresponds precisely to one electromagnetic element in the electromagnetic element group in its circumferential position.

[0033] When the control system energizes an electromagnetic element group, the eight electromagnetic elements 2 within the group generate a specific N / S pole magnetic field distribution according to the direction of their current. This magnetic field distribution interacts with the eight magnetic poles of the magnetic pole unit 7 directly opposite the group, generating a uniform and powerful resultant force in the circumferential direction based on the principle of "opposites attract, likes repel," thereby efficiently driving or locking the piston.

[0034] In this embodiment, the one-to-one correspondence between magnetic poles and electromagnetic components ensures a uniform distribution of force on the circumference, avoiding lateral swaying and one-sided wear of the piston; it also enables the control system to precisely position and hold the piston, and even in a stopped state, the piston can be locked in any position by energizing a specific electromagnetic component.

[0035] In one embodiment, a fixed connecting rod 9 is provided between adjacent electromagnetic component groups, and the two ends of the fixed connecting rod 9 are fixedly connected to the front end cover 4 and the rear end cover 5, respectively.

[0036] Specifically, both ends of the fixing rod 9 are threaded, and the two ends of the fixing rod 9 extend into the front cover 4 and the rear cover 5, respectively. The fixing rod 9 is fixed between the front cover 4 and the rear cover 5 by means of nuts engaging the threads.

[0037] In this embodiment, the fixed link 9 is a structural frame, which can enhance the rigidity and stability of the entire device.

[0038] In one embodiment, each column of electromagnetic components is covered with a fixing plate 10, and the two ends of the fixing plate 10 are fixedly connected to the front cover 4 and the rear cover 5, respectively.

[0039] Specifically, the fixing plate 10 is placed on the electromagnetic component group. It can be understood that each fixing plate 10 has several through holes that match the electromagnetic components. The end of each electromagnetic component passes through the corresponding through hole, which can fix the electromagnetic component 2, prevent it from loosening, and improve the reliability of the electromagnetic components. It can also protect the electromagnetic component 2, such as from dust and impact.

[0040] In one embodiment, the piston 3 has a groove on its outer side along the radial direction of the barrel 1, and a sealing ring 11 is fitted inside the groove.

[0041] The sealing ring 11 forms a dynamic seal between the piston 3 and the inner wall of the barrel 1. When the piston 3 moves, the sealing ring 11 always stays in close contact with the inner wall of the barrel 1, effectively preventing leakage of the liquid to be pushed and ensuring the sealing performance of the device.

[0042] In one embodiment, two grooves are formed on the outside of the piston 3, and a sealing ring 11 is fitted in each groove.

[0043] By setting two sealing rings 11, two lines of sealing are formed. Even if one sealing ring 11 fails due to wear, the other sealing ring 11 can still maintain basic sealing function. This greatly improves the reliability of the seal and the service life of the device, achieving redundant sealing.

[0044] The working process of the electromagnetic liquid material pushing device provided in this application is as follows: Pushing process: The control system starts by energizing the electromagnetic component group in the direction of the rear cover 5 and sequentially energizes the electromagnetic component group in the direction of the front cover 4, generating a forward-moving magnetic field wave. This magnetic field attracts (or repels) the magnetic pole group inside the piston 3, driving the piston 3 to move forward and pushing the liquid material in front of the piston 3 out of the outlet of the front cover 4.

[0045] Reset process: When liquid needs to be drawn in, the control system reverses the power-on sequence, generating a backward-moving magnetic field that drives piston 3 towards the rear cover 5. At this time, a negative pressure is generated in front of piston 3, drawing liquid in from the inlet of the front cover 4, preparing for the next push.

[0046] Understandably, during the aforementioned pushing and resetting processes, the movement speed of piston 3 can be adjusted by changing the energizing frequency of the electromagnetic component group, thereby controlling the flow rate of the liquid to be pushed. The thrust can be adjusted by changing the magnitude of the current, thus controlling the pushing pressure.

[0047] The electromagnetic liquid material pushing device provided in this application is based on the principles of electromagnetic induction and magnetic pole interaction. A control system energizes electromagnetic element groups at different positions in a specific sequence and intensity, generating a magnetic field that moves along the axial direction of the material cylinder. This moving magnetic field interacts with the fixedly arranged magnetic pole groups within the piston cavity, thereby propelling the piston to move linearly along the axial direction of the material cylinder.

[0048] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electromagnetic liquid material pushing device, characterized in that, include: Cylinder (1); Several rows of electromagnetic element groups are evenly arranged on the outside of the material cylinder (1) along the axial direction; each electromagnetic element group includes several electromagnetic elements (2). Piston (3) is disposed inside the barrel (1); The magnetic pole assembly is arranged in the cavity of the piston (3); The front cover (4) and the rear cover (5) are respectively disposed at both ends of the material cylinder (1); The magnetic core shaftless turbine (6) is disposed inside the barrel (1) and near the end of the front end cover (4), and corresponds to the first group of electromagnetic components.

2. The electromagnetic liquid material pushing device according to claim 1, characterized in that, The electromagnetic element (2) includes a coil (21) and a magnetic core (22), with the magnetic core (22) sleeved on the coil (21).

3. The electromagnetic liquid material pushing device according to claim 2, characterized in that, The magnetic pole group includes several groups of parallel magnetic pole units (7), and the magnetic pole group includes N poles and S poles; Each group of magnetic pole units (7) includes several magnetic poles; the magnetic poles include N poles and / or S poles; The number of magnetic poles in each magnetic pole unit (7) is equal to the number of electromagnetic elements (2) in the electromagnetic element group, and their positions correspond one-to-one.

4. The electromagnetic liquid material pushing device according to claim 1, characterized in that, A fixed connecting rod (9) is provided between adjacent electromagnetic component groups, and the two ends of the fixed connecting rod (9) are fixedly connected to the front end cover (4) and the rear end cover (5) respectively.

5. The electromagnetic liquid material pushing device according to claim 1, characterized in that, Each column of electromagnetic components is covered with a fixing plate (10), and the two ends of the fixing plate (10) are fixedly connected to the front cover (4) and the rear cover (5) respectively.

6. The electromagnetic liquid material pushing device according to claim 1, characterized in that, The piston (3) has a groove on its outside along the radial direction of the barrel (1), and a sealing ring (11) is fitted inside the groove.

7. The electromagnetic liquid material pushing device according to claim 6, characterized in that, The piston (3) has two grooves on its outside, and a sealing ring (11) is fitted in each groove.

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