Linear motor piston pump

Abstract

The utility model provides a linear motor formula piston pump belongs to piston pump technical field, including front side plate and rear side plate, the front side plate and rear side plate one side close to is installed with two stator module, two stator module between being provided with two push rod, two push rod on installation has with two stator module corresponding rotor module, the front side plate and rear side plate one side close to both ends are installed with two support seat. The utility model discloses a stator module and rotor module are set up between two cylinder bodies, and such layout can make full use of space, make structure more compact, and rotor module is fixedly connected with push rod, and is slidably connected with the support seat of both sides, forms a stable support structure, and this connecting mode can realize the direct conversion of electric energy to mechanical energy, saves the complex transmission link in the middle, has the advantages of simple structure, low noise, high reliability, long life, high system efficiency, can satisfy long stroke and high pressure resistant demand.

Description

Technical Field

[0001] This utility model belongs to the field of piston pump technology, specifically relating to a linear motor piston pump. Background Technology

[0002] In industrial production and various engineering applications, piston pumps play an indispensable role as important fluid transport equipment. Traditional piston pumps typically utilize a crank-connecting rod mechanism to convert the rotational motion of the prime mover into the linear reciprocating motion of the piston. Taking a single-cylinder piston pump as an example, its core components include a crankshaft, connecting rod, piston, pump cylinder, and inlet / outlet valves. When the prime mover drives the crankshaft to rotate at a constant speed, the connection point between the connecting rod and the crankshaft performs a circular motion. Since one end of the connecting rod is connected to the crankshaft and the other end is connected to the piston, this circular motion is converted into the linear reciprocating motion of the piston within the pump cylinder, thereby achieving the intake and high-pressure discharge of liquid.

[0003] However, in the operation of this rotary-driven piston pump, energy needs to undergo multiple conversions and transfers. The mechanical energy output from the prime mover is first transferred to the crankshaft through components such as belts and couplings. The crankshaft then transfers the rotational motion to the piston through the connecting rod. Each transfer is accompanied by energy loss, such as slippage loss in belt drive, elastic deformation loss of coupling, and friction loss at the connection between the connecting rod and the crankshaft and piston. Due to the numerous intermediate transmission links, a large amount of energy is lost due to friction during the energy conversion process, which greatly reduces the overall efficiency of the system. Utility Model Content

[0004] (1) Technical problems to be solved To address the shortcomings of existing technologies, the purpose of this utility model is to provide a linear motor piston pump to solve the problem that in the operation of existing rotary drive piston pumps, energy needs to undergo multiple conversions and transfers. Each transfer of mechanical energy output from the prime mover is accompanied by energy loss. Due to the numerous intermediate transfer links, a large amount of energy is lost due to friction during the energy conversion process, which greatly reduces the overall efficiency of the system.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a linear motor piston pump, including a front side plate and a rear side plate. Two stator modules are installed on the side of the front and rear side plates that are close to each other. Two push rods are arranged between the two stator modules. Moving parts corresponding to the two stator modules are installed on the two push rods. Two support seats are installed at both ends of the side of the front and rear side plates that are close to each other. A cylinder body is installed on the side of the two support seats that are far apart from each other. Two cylinder heads are installed on the cylinder body. An inlet check valve and an outlet check valve are respectively installed on the two cylinder heads. The left and right ends of the push rods pass through the support seats and extend into the interior of the cylinder body. The push rods are slidably connected to the support seats. A piston head is fixedly connected to the end of the push rod located inside the cylinder body. The push rod is used to change the volume of the cylinder by causing the piston head. The two stator modules are used to move the mover module and the two push rods left and right. A detection component is installed on the rear side plate. The detection component is used to detect the moving position of the mover module.

[0006] Preferably, the push rod has a mounting plane in the middle of the side near the rear plate, and mounting plates are fixedly connected to both the upper and lower sides of the moving part module, with the mounting plates fixedly connected inside the mounting plane.

[0007] Preferably, the detection assembly includes a mounting base, a sensor, a connecting plate, and a metal sheet. The mounting base is fixedly connected to the top of the rear side plate, the sensor is mounted on the mounting base, the connecting plate is fixedly connected to the mounting plate, and the metal sheet is fixedly connected to the connecting plate.

[0008] Preferably, the mounting base has two mounting slots, and the bottom end of the mounting slot has an elongated hole. A screw is installed in the elongated hole and fixedly connected to the sensor.

[0009] Preferably, the stator module is provided with an electromagnetic component.

[0010] Preferably, the bottom ends of the front and rear side plates are fixedly connected to a base plate, and the bottom end of the support base is in contact with the upper surface of the base plate.

[0011] Preferably, an elongated hole is provided in the middle of the side of the front and rear side plates that are far apart. Two stepped grooves are provided on the left and right sides of the elongated hole. An installation plate is fixedly connected inside the two stepped grooves. The stator module is fixedly connected to the installation plate. A gap is left between the upper and lower sides of the installation plate and the upper and lower inner walls of the elongated hole.

[0012] Preferably, the support base includes a front part and a rear part fixedly connected to the front part. The front part and the rear part are fixedly connected to the front side plate and the rear side plate, respectively. Two guide grooves are opened on the side of the front part and the rear part that are close to each other. Grooves are opened on the left and right sides of the guide grooves. Rigid support rings are fixedly connected in the two grooves close to the moving part module. The push rod is slidably inserted into the guide grooves and the rigid support rings.

[0013] Preferably, the front and rear sides of the part are provided with a plurality of vertical oil grooves that pass through guide grooves, and the upper and lower sides of the vertical oil grooves are connected.

[0014] Preferably, rectangular grooves are provided on the upper and lower sides of the front and rear portions, and the rectangular grooves are connected to the vertical oil grooves.

[0015] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: In the above scheme, the stator module and the mover module are placed between the two cylinders. This layout can make full use of space and make the structure more compact. The mover module is fixedly connected to the push rod and slides with the support seats on both sides to form a stable support structure. This connection method can realize the direct conversion of electrical energy to mechanical energy, eliminating the complex intermediate transmission links. It has the advantages of simple structure, low noise, high reliability, long service life and high system efficiency, and can meet the requirements of long stroke and high pressure resistance.

[0016] The above solution uses high-strength, high-pressure-resistant materials to manufacture the cylinder body and internal piston head, enabling them to withstand higher pressures. The wall thickness of the cylinder body and the piston head are optimized to improve the pressure resistance of the components and ensure that they will not deform or be damaged when subjected to high pressure. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a linear motor piston pump.

[0018] Figure 2 This is a top view of a linear motor piston pump.

[0019] Figure 3 This is a schematic diagram of the structure of a linear motor piston pump with the front side panel open.

[0020] Figure 4 This is a schematic diagram of the front plate of a linear motor piston pump.

[0021] Figure 5 This is a schematic diagram of the support base for a linear motor piston pump.

[0022] Figure 6 This is a schematic diagram of the right-side cross-sectional structure of a linear motor piston pump.

[0023] Figure 7 For linear motor type piston pump Figure 6 A magnified structural diagram of point A in the middle.

[0024] The markings in the attached diagram are as follows: 1. Front side plate; 2. Rear side plate; 3. Stator module; 4. Push rod; 5. Moving part module; 6. Support base; 7. Cylinder body; 8. Cylinder head; 9. Inlet check valve; 10. Outlet check valve; 11. Base plate; 12. Detection component; 201. Elongated hole; 202. Stepped groove; 203. Mounting plate; 401. Mounting plane; 402. Mounting plate; 1201. Fixing base; 1202. Sensor; 1203. Connecting plate; 1204. Metal sheet; 1205. Mounting groove; 1206. Elongated hole; 1207. Screw; 601. Front part; 602. Rear part; 603. Guide groove; 604. Groove; 605. Rigid support ring; 606. Vertical oil groove; 607. Rectangular groove.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0026] This utility model provides a linear motor piston pump, including a front side plate 1 and a rear side plate 2. Two stator modules 3 are installed on the side of the front side plate 1 and the rear side plate 2 that are close to each other. Electromagnetic components are installed in the stator modules 3. Two push rods 4 are arranged between the two stator modules 3. Moving parts 5 corresponding to the two stator modules 3 are installed on the two push rods 4. Two support seats 6 are installed at both ends of the side of the front side plate 1 and the rear side plate 2 that are close to each other. A cylinder body 7 is installed on the side of the two support seats 6 that are far apart from each other. Two cylinder heads 8 are installed on the cylinder body 7. The cylinder body 7 and the cylinder heads 8 are made of high-strength, corrosion-resistant materials, such as stainless steel and alloy steel, to ensure sufficient strength and sealing under the conditions of high-pressure liquid and reciprocating piston head motion. The system is equipped with an inlet check valve 9 and an outlet check valve 10, both of which employ advanced check valve structures. The valve plates and seats are made of wear-resistant and corrosion-resistant materials, such as hard alloys and ceramics, to improve the service life and sealing performance of the valves. The left and right ends of the push rod 4 pass through the support seat 6 and extend into the interior of the cylinder body 7. The push rod 4 is slidably connected to the support seat 6. A piston head is fixedly connected to one end of the push rod 4 inside the cylinder body 7. The piston head is slidably sealed to the inner wall of the cylinder body 7. The opening and closing of the inlet check valve 9 and the outlet check valve 10 are controlled by the movement of the piston head. When the piston head moves, it changes the pressure inside the cylinder body 7, thereby automatically opening and closing the inlet check valve 9 and the outlet check valve 10, ensuring that the liquid can only flow in one direction. The push rod 4 is used to change the volume of the cylinder 7 by the piston head. The two stator modules 3 are used to move the mover module 5 and the two push rods 4 left and right. The stator module 3 and the mover module 5 are powered by DC power and use the Ampere force on the current-carrying conductor in the magnetic field to generate linear motion. Its advantages are good speed regulation performance, the speed can be easily adjusted by changing the power supply voltage, high control accuracy, and large starting torque, which can provide a large thrust in a short time. The detection component 12 is installed on the rear side plate 2. The detection component 12 is used to detect the moving position of the mover module 5. The bottom end of the front side plate 1 and the rear side plate 2 are fixedly connected to the base plate 11. The bottom end of the support 6 is in contact with the upper surface of the base plate 11.

[0027] To facilitate the fixed connection between the moving module 5 and the push rod 4, such as Figure 3 , Figure 6 and Figure 7 As shown, in this embodiment, the push rod 4 has a mounting surface 401 in the middle of the side near the rear plate 2, and the upper and lower sides of the moving module 5 are fixedly connected to mounting plates 402, which are fixedly connected inside the mounting surface 401.

[0028] like Figure 6 and Figure 7As shown, in this embodiment, the detection component 12 includes a fixed base 1201, a sensor 1202, a connecting plate 1203, and a metal sheet 1204. The fixed base 1201 is fixedly connected to the top of the rear side plate 2. The sensor 1202 is mounted on the fixed base 1201. The connecting plate 1203 is fixedly connected to the mounting plate 402. The metal sheet 1204 is fixedly connected to the connecting plate 1203. The position of the metal sheet 1204 corresponds to that of the sensor 1202. There is a small gap between the metal sheet 1204 and the sensor 1202. The sensor 1202 is an inductive proximity switch. Utilizing the principle of electromagnetic induction, when the metal sheet 1204 enters the detection range, the oscillating magnetic field of the coil generates eddy currents in the metal, resulting in energy loss and changing the oscillation state, thereby triggering a switch signal to detect the left and right movement distance of the moving module 5.

[0029] To facilitate the installation and adjustment of the sensor 1202, such as Figure 6 and Figure 7 As shown, in this embodiment, the mounting base 1201 has two mounting slots 1205, and the bottom end of the mounting slot 1205 has an elongated hole 1206. A screw 1207 is installed in the elongated hole 1206 and fixedly connected to the sensor 1202. The elongated hole 1206 passes through the mounting base 1201.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, an elongated hole 201 is provided in the middle of the side of the front side plate 1 and the rear side plate 2 that are far apart. Two stepped grooves 202 are provided on the left and right sides of the elongated hole 201. An installation plate 203 is fixedly connected inside the two stepped grooves 202. The stator module 3 is fixedly connected to the installation plate 203. There are gaps between the upper and lower sides of the installation plate 203 and the inner walls of the upper and lower sides of the elongated hole 201. This not only facilitates the installation of the stator module 3, but also facilitates heat dissipation by leaving gaps between the installation plate 203 and the inner walls of the elongated hole 201, avoiding overheating of the module and improving its performance.

[0031] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, the support base 6 includes a front part 601 and a rear part 602 fixedly connected to the front part 601. The front part 601 and the rear part 602 are fixedly connected to the front side plate 1 and the rear side plate 2, respectively. Two guide grooves 603 are provided on the side of the front part 601 and the rear part 602 that are close to each other. Grooves 604 are provided on the left and right sides of the guide grooves 603. Hard support rings 605 are fixedly connected in the two grooves 604 near the moving part module 5. The push rod 4 is slidably inserted into the guide grooves 603 and the hard support rings 605. In this way, the push rod 4 can slide along the guide grooves 603 and the hard support rings 605, making the reciprocating motion of the moving part module 5 and the push rod 4 more stable.

[0032] like Figure 3 and Figure 5 As shown, in this embodiment, multiple vertical oil grooves 606 penetrating the guide grooves 603 are provided on the side of the front part 601 and the rear part 602 that are close to each other. The upper and lower sides of the vertical oil grooves 606 are connected. The vertical oil grooves 606 are opened along the inner walls of the front part 601, the rear part 602 and the guide grooves 603. A sealing gasket can be installed between the front part 601 and the rear part 602. A sealing gasket can also be installed between the front part 601 and the rear part 602 and the bottom plate 11 to improve the sealing performance. Rectangular grooves 607 are provided on the upper and lower sides of the front part 601 and the rear part 602. The rectangular grooves 607 are connected to the vertical oil grooves 606. In this way, the interior of the vertical oil grooves 606 can be immersed in oil. The push rod 4 and the hard support ring 605 generate an oil film lubrication and push a part of the lubricating oil into the cylinder body 7 for lubrication and sealing, thereby generating pressure, which is output through the piston head.

[0033] The technical solution provided by this utility model, when the winding of the stator module 3 is powered on, generates a traveling wave magnetic field, which interacts with the moving module 5 to generate electromagnetic thrust, driving the push rod 4 and piston head to move linearly in the cylinder 7. When the detection component 12 detects that the moving module 5 has moved to the maximum position, it reverses the power supply, at which point it drives the push rod 4 and piston head to move in the opposite direction in the cylinder 7. This cycle repeats, causing the push rod 4 and piston head to move back and forth in the cylinder 7. During the suction stroke, the piston head moves from one end of the cylinder 7 to the other end, and the volume in the cylinder 7 gradually increases, while the pressure decreases. When the pressure in the cylinder 7 is lower than the liquid pressure in the suction pipe, the liquid inlet check valve 9 opens, and the liquid is sucked into the cylinder 7 under the action of the pressure difference. When the piston head reaches the end of its stroke, the suction stroke ends, and the liquid inlet check valve 9 closes. Following this, the discharge stroke begins, the piston head moves in the opposite direction, the volume inside cylinder 7 gradually decreases, the liquid is compressed, and the pressure increases. When the pressure inside the cylinder is higher than the pressure in the discharge pipeline, the discharge check valve 10 opens, and the liquid is discharged from cylinder 7 under high pressure, enters the discharge pipeline, and is transported to the required location. When the piston head moves to the end of its stroke again, the discharge stroke ends, and the discharge check valve 10 closes. This cycle repeats continuously, achieving continuous liquid intake and high-pressure discharge, thus completing the liquid transport task. Throughout the entire operation, by precisely controlling the operating parameters of stator module 3 and mover module 5, the flow rate and pressure can be flexibly adjusted to meet the usage requirements under different working conditions.

[0034] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0035] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A linear motor-driven piston pump, characterized in that, Includes a front side plate (1) and a rear side plate (2). Two stator modules (3) are installed on the side of the front side plate (1) and the rear side plate (2) that are close to each other. Two push rods (4) are arranged between the two stator modules (3). A moving module (5) corresponding to the two stator modules (3) is installed on the two push rods (4). Two support seats (6) are installed at both ends of the side of the front side plate (1) and the rear side plate (2) that are close to each other. A cylinder body (7) is installed on the side of the two support seats (6) that are far apart from each other. Two cylinder covers (8) are installed on the cylinder body (7). A liquid inlet check valve (9) and a liquid outlet check valve (10) are respectively installed on the two cylinder covers (8). The left and right ends of the push rod (4) pass through the support seat (6) and extend into the inside of the cylinder body (7). The push rod (4) is slidably connected to the support seat (6). A piston head is fixedly connected to one end of the push rod (4) inside the cylinder body (7). The push rod (4) is used to change the volume of the cylinder (7) by the piston head. The two stator modules (3) are used to move the mover module (5) and the two push rods (4) left and right. A detection component (12) is installed on the rear side plate (2). The detection component (12) is used to detect the moving position of the mover module (5).

2. The linear motor piston pump according to claim 1, characterized in that, The push rod (4) has an installation plane (401) in the middle of the side near the rear plate (2). The upper and lower sides of the moving module (5) are fixedly connected to the mounting plate (402), and the mounting plate (402) is fixedly connected inside the mounting plane (401).

3. The linear motor piston pump according to claim 2, characterized in that, The detection component (12) includes a mounting base (1201), a sensor (1202), a connecting plate (1203), and a metal sheet (1204). The mounting base (1201) is fixedly connected to the top of the rear side plate (2). The sensor (1202) is mounted on the mounting base (1201). The connecting plate (1203) is fixedly connected to the mounting plate (402). The metal sheet (1204) is fixedly connected to the connecting plate (1203).

4. The linear motor piston pump according to claim 3, characterized in that, The mounting base (1201) has two mounting slots (1205), and the bottom end of the mounting slot (1205) has an elongated hole (1206). A screw (1207) is installed in the elongated hole (1206) and is fixedly connected to the sensor (1202).

5. The linear motor piston pump according to claim 4, characterized in that, The stator module (3) is equipped with an electromagnetic component.

6. The linear motor piston pump according to claim 1, characterized in that, The bottom ends of the front side plate (1) and the rear side plate (2) are fixedly connected to the bottom plate (11), and the bottom end of the support base (6) is in contact with the upper surface of the bottom plate (11).

7. The linear motor piston pump according to claim 6, characterized in that, The front side plate (1) and the rear side plate (2) are provided with elongated holes (201) in the middle of the side that are far apart. Two stepped grooves (202) are provided on the left and right sides of the elongated holes (201). The mounting plates (203) are fixedly connected inside the two stepped grooves (202). The stator module (3) is fixedly connected to the mounting plate (203). There are gaps between the upper and lower sides of the mounting plate (203) and the inner walls of the upper and lower sides of the elongated holes (201).

8. The linear motor piston pump according to claim 1, characterized in that, The support base (6) includes a front part (601) and a rear part (602) fixedly connected to the front part (601). The front part (601) and the rear part (602) are fixedly connected to the front side plate (1) and the rear side plate (2) respectively. Two guide grooves (603) are opened on the side of the front part (601) and the rear part (602) that are close to each other. Grooves (604) are opened on the left and right sides of the guide grooves (603). Hard support rings (605) are fixedly connected in the two grooves (604) close to the moving module (5). The push rod (4) is slidably inserted into the guide grooves (603) and the hard support rings (605).

9. The linear motor piston pump according to claim 8, characterized in that, The front (601) and rear (602) are each provided with a plurality of vertical oil grooves (606) that pass through guide grooves (603) on the side that are close to each other, and the upper and lower sides of the vertical oil grooves (606) are connected.

10. The linear motor piston pump according to claim 9, characterized in that, Rectangular grooves (607) are provided on the upper and lower sides of the front part (601) and the rear part (602), and the rectangular grooves (607) are connected to the vertical oil grooves (606).

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