Assembly process of traveling wave pump

Abstract

The invention discloses an assembling method of a traveling wave pump. The assembling method comprises the following steps of pump body machining, end cover machining, traveling wave rotor machining, blocking mechanism machining and traveling wave pump assembling. The assembling method is simple in step, the assembling quality and precision of the traveling wave pump can be improved, noise generated when the traveling wave pump works is reduced, friction and abrasion are reduced, the working efficiency is improved, the service life is prolonged, meanwhile, it can be guaranteed that the volume variation of each volume cavity is constant, and pulseless conveying is achieved.

Description

Technical Field

[0001] This invention relates to an assembly method for a traveling wave pump. Background Technology

[0002] In the fields of fluid transport and power transmission, positive displacement pumps (such as gear pumps, vane pumps, and piston pumps) are widely used due to their compact structure and high output pressure. However, these pumps have long suffered from two major technical bottlenecks: significant output pulsation and rapid wear of key moving parts, which severely restricts further performance improvements and the expansion of their application range.

[0003] Output pulsation is mainly caused by periodic abrupt changes in pump chamber volume. When the working chamber is suddenly connected or disconnected from the inlet and outlet, the fluid flow rate and pressure will fluctuate intermittently. This pulsation is transmitted to the entire hydraulic or pipeline system, causing mechanical vibration and noise, and deteriorating the working environment. In applications with extremely high requirements for flow stability (such as precision injection molding, test benches, or medical equipment), pulsation will directly affect control accuracy and process results. In addition, continuous impact loads will accelerate fatigue damage to pipelines and components, reducing the overall reliability of the system.

[0004] Wear primarily occurs on moving parts such as the rotor, vanes, and pump body. Traditional positive displacement pumps, in pursuit of tight sealing, often employ line or surface contact designs. Combined with sudden acceleration changes and rigid impacts caused by improper profile design during operation, wear is particularly severe in areas of concentrated contact stress. Wear not only directly reduces the pump's volumetric efficiency and service life but also exacerbates internal leakage due to increased clearances, leading to significant performance degradation after long-term operation and an inability to maintain stable output pressure.

[0005] Existing improvements, such as adding accumulators at the outlet to buffer pulsations or using high-performance wear-resistant materials to manufacture key components, can alleviate the problem to some extent, but they do not fundamentally change the pump's working principle or the dynamic characteristics of the moving parts. These methods often lead to increased system complexity and manufacturing costs, with limited improvement effects. Summary of the Invention

[0006] The purpose of this invention is to provide a technical solution for assembling a traveling wave pump, which addresses the shortcomings of existing technologies. This assembly method is simple in steps, and can not only improve the assembly quality and precision of the traveling wave pump, but also reduce the noise during operation, reduce friction and wear, improve working efficiency, extend service life, and ensure that the volume change of each volume chamber is constant, thus achieving pulsation-free delivery.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A method for assembling a traveling wave pump, characterized by comprising the following steps: S1, Pump body machining a. First, determine the dimensions of the pump body according to the design requirements, and form the required pump body by casting. The pump body is provided with interconnected first bearing holes and coupling mounting holes, and process holes are opened along the outer side of the pump body facing the coupling mounting holes. b. Then, a first positioning cavity and a conveying cavity are sequentially opened on the pump body along the side close to the first bearing hole. The first positioning cavity is concentric with the first bearing hole. Then, a first flow channel groove and a first dicing groove are opened above the conveying cavity. The first flow channel groove connects the first dicing groove and the conveying cavity. c. Next, open an inlet and an outlet along the top of the pump body towards the delivery chamber, so that the inlet and outlet are connected to the delivery chamber; d. A sealing groove, a first positioning hole, and a first through hole are provided on the end face of the pump body near the conveying chamber. The sealing groove is distributed along the outer edge of the conveying chamber and the first slicing groove. e. Finally, the coupling mounting hole, the first bearing hole, the first positioning cavity, the conveying cavity, the first flow channel groove, the first dicing groove, the liquid inlet and the liquid outlet are ground and polished. S2, End Cap Processing a. First, determine the size of the end cover according to the size of the pump body, and form the required end cover by casting. Then, open the second positioning cavity and the second bearing hole in sequence from the right outside to the inside along the side of the end cover closest to the pump body. The second positioning cavity and the second bearing hole are concentrically set. b. Then, a second scribing groove and a second flow channel groove are made on the end cap above the second positioning cavity, and the second flow channel groove is connected to the second scribing groove. c. Next, a second positioning hole and a second through hole are made on the end cap; d. Finally, the second positioning cavity, the second bearing hole, the second dicing groove, and the second flow channel groove are ground and polished. S3, Traveling Wave Rotor Machining a. First, determine the dimensions of the traveling wave rotor based on the dimensions of the conveying cavity, the first positioning cavity, and the second positioning cavity. Then, form the rotating body and traveling wave blades through integral machining. The traveling wave blades are distributed along the outer circumferential side of the rotating body. b. Then, horizontally drill a shaft hole along the center of the rotating body; c. Next, the surfaces of the traveling wave blades and the rotating body are shot blasted. S4, Blocking Mechanism Processing a. First, determine the size of the blocking structure according to the size and spacing of the first and second slicing grooves, make the corresponding limiting frame, and open a sliding groove along the inner side of the limiting frame. The sliding groove vertically penetrates the bottom of the limiting frame, and symmetrical channels are opened on the limiting frame to avoid the movement of the traveling wave blade. b. Then, determine the size of the slider support frame according to the size of the limit frame and the travel stroke of the traveling wave blade, and process the corresponding slider support frame. The slider support frame has a U-shaped structure. c. Next, select two sliders, make blind holes on the sliders, install elastic elements along the blind holes, fix the other end of the elastic elements to the inside of the slider support frame, and then install the slider support frame into the groove of the limit frame. By designing a blocking mechanism, the volume chambers between the inlet and outlet can be separated. Since the medium has been squeezed out, the volume chamber on the inlet side can draw in the medium from the inlet. The volume chamber on the outlet side contains the medium. As the traveling wave rotor rotates, the medium in this volume chamber can be squeezed out and output through the outlet. This allows for synchronous input and output of the medium, improving the medium delivery efficiency.

[0008] S5, Traveling Wave Pump Assembly a. First, select a rotating shaft according to the size of the shaft hole, connect the traveling wave rotor to the rotating shaft, and install bearings on both sides of the traveling wave rotor on the rotating shaft. Then, clamp the two sliders of the blocking mechanism onto the traveling wave blades, and install the traveling wave rotor and the blocking mechanism together into the pump body, so that the bearing is limited to the first bearing hole, one end of the rotating body of the traveling wave rotor is limited to the first positioning cavity, and one end of the blocking mechanism is limited to the first slitting groove. b. Then install the positioning shaft in the first positioning hole of the pump body and install the sealing ring in the sealing groove; c. Next, assemble the end cover onto the end of the pump body, so that the other end of the positioning pin is inserted into the second positioning hole of the end cover, the bearing on the other side is limited to the second bearing hole, the other end of the rotating body of the traveling wave rotor is limited to the second positioning cavity, the other end of the blocking mechanism is limited to the second slitting groove, and then install fasteners between the first through hole and the second through hole on the pump body and the end cover. d. Install the inlet connector and outlet connector on the inlet and outlet of the pump body respectively; e. Finally, select the motor, attach the coupling to the output shaft of the motor, install the motor at the end of the pump body, insert the coupling into the rotating shaft, and fix the screws on the coupling to the rotating shaft through the process hole.

[0009] This assembly method is simple in steps, which can not only improve the assembly quality and precision of the traveling wave pump, but also reduce the noise of the traveling wave pump during operation, reduce friction and wear, improve working efficiency, extend service life, and at the same time ensure that the volume change of each volume chamber is constant, so as to achieve pulsation-free delivery.

[0010] Furthermore, in step S1 process a, the process holes are located on the side and bottom of the pump body. The process holes are connected to the coupling mounting holes, which makes it easy to pass a screwdriver through the process holes and tighten the screws to the coupling and the shaft, thereby improving the connection stability between the coupling and the shaft.

[0011] Furthermore, in step S1 process b, the two first flow channel grooves are symmetrically distributed on both sides of the first dicing groove. The depth of the first dicing groove is greater than the depth of the first flow channel groove. Through the first flow channel groove, when the tangential of the traveling wave blade rotates to the position of the inlet and outlet, the delivery chamber, the inlet and outlet can be connected to meet the requirements of continuous input and output of the medium and realize pulsation-free delivery.

[0012] Furthermore, in step S2 process b, the two second flow channel grooves are symmetrically distributed on both sides of the second dicing groove. The depth of the second dicing groove is greater than the depth of the second flow channel groove. The second flow channel groove is set correspondingly to the first flow channel groove. Through the second flow channel groove, when the tangential of the traveling wave blade rotates to the position of the inlet and outlet, the delivery chamber, the inlet and outlet are connected to meet the requirements of continuous input and output of the medium and realize pulsation-free delivery. At the same time, the symmetrically set first and second flow channel grooves can meet the requirements of medium input and output when the chambers on both sides of the traveling wave blade change continuously.

[0013] Furthermore, the thickness of the traveling wave blade in step S3a is less than the thickness of the conveying cavity, which is beneficial to forming multiple volume cavities and realizing the synchronous movement of each volume cavity to convey the medium.

[0014] Furthermore, the width of the channel in step S4 process a is greater than the stroke of the traveling wave blade, which can meet the requirement that the traveling wave blade moves continuously left and right during the continuous rotation of the traveling wave rotor, and avoid the traveling wave blade colliding with the limit frame.

[0015] Furthermore, in step S4 process b, the length of the slider support frame is less than the length of the limiting frame, which is beneficial for the traveling wave blade to push the slider and drive the slider support frame to move back and forth along the groove of the limiting frame during rotation, thus meeting the separation requirements of the volume cavity.

[0016] Furthermore, when the motor operates in step S5, it drives the traveling wave rotor to rotate along the conveying cavity. When the tangent of the traveling wave blade is tangent to the inner wall of the end cover, a first volume cavity and a second volume cavity are formed, located on the side closer to the end cover. When the tangent of the traveling wave blade is tangent to the inner wall of the conveying cavity, a third volume cavity and a fourth volume cavity are formed, located on the side closer to the motor. The first volume cavity, the third volume cavity, the second volume cavity, and the fourth volume cavity are alternately distributed along both sides of the traveling wave blade.

[0017] Furthermore, the first, second, third, and fourth volume chambers are divided into two chambers by the blocking mechanism when they pass through it. One chamber is connected to the liquid inlet and its volume gradually increases, while the other chamber is connected to the liquid outlet and its volume gradually decreases, thus achieving pulsation-free delivery of the medium.

[0018] The present invention, by adopting the above-described technical solution, has the following beneficial effects: 1. The assembly method of the present invention has simple steps, which can not only improve the assembly quality and accuracy of the traveling wave pump, but also reduce the noise of the traveling wave pump during operation, reduce friction and wear, improve working efficiency, extend service life, and at the same time ensure that the volume change of each volume cavity is constant, so as to achieve pulsation-free delivery.

[0019] 2. The first and second flow channels can connect the delivery chamber, the inlet and the outlet when the traveling wave blade rotates tangentially to the position of the inlet and outlet, thus meeting the requirements for continuous input and output of the medium and realizing pulsation-free delivery.

[0020] 3. Through the design of the blocking mechanism, the volume chambers between the inlet and outlet can be separated. Since the medium has been squeezed out, the volume chamber on the inlet side can draw in the medium from the inlet. The medium in the volume chamber on the outlet side is squeezed out by the rotation of the traveling wave rotor and output through the outlet. This allows for synchronous input and output of the medium, improving the medium conveying efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a flowchart of an assembly method for a traveling wave pump according to the present invention; Figure 2 This is a rendering of the traveling wave pump in this invention; Figure 3 This is an exploded view of the traveling wave pump in this invention; Figure 4 for Figure 2 The main view; Figure 5 for Figure 4 Schematic diagram of the structure in the AA direction; Figure 6 for Figure 4 Schematic diagram of the structure in the middle BB direction; Figure 7 This is a schematic diagram of the end cap structure in this invention; Figure 8 This is a schematic diagram of the pump body in this invention; Figure 9 This is a schematic diagram of the blocking mechanism in this invention; Figure 10 This is a schematic diagram of the traveling wave rotor in this invention; Figure 11 for Figure 10 A schematic diagram of the structure in the C-direction.

[0022] In the figure: 1-Pump body; 101-Inlet; 102-Outlet; 103-First slicing groove; 104-First bearing hole; 105-First positioning cavity; 106-Conveying cavity; 107-Sealing groove; 108-First flow channel groove; 109-First positioning hole; 110-First through hole; 2-End cap; 201-Second dicing groove; 202-Second bearing hole; 203-Second positioning cavity; 204-Second flow channel groove; 205-Second positioning hole; 206-Second through hole; 3-Motor; 4-Inlet connector; 5-Outlet connector; 6-Traveling wave rotor; 601-Rotating body; 602-Traveling wave blade; 603-Shaft hole; 7-Blocking mechanism; 701-Limiting frame; 702-Slide groove; 703-Slider support frame; 704-Slider; 705-Elastic element; 706-Channel; 8-Sealing ring; 9-Positioning pin; 10-Coupling; 11-Bearing; 12-Shaft; 13-Fastener. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0026] like Figures 1 to 11 The diagram illustrates an assembly method for a traveling wave pump according to the present invention, comprising the following steps: S1, Pump body 1 machining a. First, determine the dimensions of the pump body 1 according to the design requirements, and form the required pump body 1 by casting. The pump body 1 is provided with a first bearing hole 104 and a coupling mounting hole that are interconnected, and process holes are opened along the outer side of the pump body 1 facing the coupling mounting hole. The process holes are located on the side and bottom of the pump body 1. The process holes are connected to the coupling mounting holes, which makes it easy to pass a screwdriver through the process holes and tighten the screws to the coupling 10 and the rotating shaft 12, thereby improving the connection stability between the coupling 10 and the rotating shaft 12.

[0027] b. Then, a first positioning cavity 105 and a conveying cavity 106 are sequentially opened on the pump body 1 along the side near the first bearing hole 104. The first positioning cavity 105 is concentrically arranged with the first bearing hole 104. Then, a first flow channel groove 108 and a first dicing groove 103 are opened above the conveying cavity 106. The first flow channel groove 108 connects the first dicing groove 103 and the conveying cavity 106. Two first flow channel grooves 108 are symmetrically distributed on both sides of the first dicing groove 103. The depth of the first dicing groove 103 is greater than the depth of the first flow channel groove 108. Through the first flow channel groove 108, when the traveling wave blade 602 rotates tangentially to the positions of the inlet 101 and the outlet 102, the conveying chamber 106, the inlet 101 and the outlet 102 are connected, which meets the requirements of continuous input and output of the medium and realizes pulsation-free conveying.

[0028] c. Next, an inlet 101 and an outlet 102 are opened along the top of the pump body 1 toward the delivery chamber 106, so that the inlet 101 and the outlet 102 are connected to the delivery chamber 106. d. A sealing groove 107, a first positioning hole 109 and a first through hole 110 are provided on the end face of the pump body 1 near the conveying chamber 106. The sealing groove 107 is distributed along the outer edge of the conveying chamber 106 and the first slicing groove 103. e. Finally, the coupling mounting hole, the first bearing hole 104, the first positioning cavity 105, the conveying cavity 106, the first flow channel groove 108, the first dicing groove 103, the liquid inlet 101 and the liquid outlet 102 are ground and polished. S2, end cap 2 processing a. First, determine the size of the end cover 2 according to the size of the pump body 1, and form the required end cover 2 by casting. Along the side of the end cover 2 close to the pump body 1, from the right outside to the inside, the second positioning cavity 203 and the second bearing hole 202 are opened in sequence. The second positioning cavity 203 and the second bearing hole 202 are concentrically set. b. Then, a second slicing groove 201 and a second flow channel groove 204 are opened on the end cap 2 above the second positioning cavity 203, and the second flow channel groove 204 is connected to the second slicing groove 201. Two second flow channel grooves 204 are symmetrically distributed on both sides of the second dicing groove 201. The depth of the second dicing groove 201 is greater than the depth of the second flow channel groove 204. The second flow channel groove 204 is correspondingly arranged with the first flow channel groove 108. Through the second flow channel groove 204, when the tangential rotation of the traveling wave blade 602 is to the position of the inlet 101 and the outlet 102, the conveying chamber 106, the inlet 101 and the outlet 102 can be connected to meet the requirements of continuous input and output of the medium and realize pulsation-free conveying. At the same time, the symmetrically arranged first flow channel groove 108 and second flow channel groove 204 can meet the requirements of medium input and output when the chambers on both sides of the traveling wave blade 602 change continuously.

[0029] c. Next, a second positioning hole 205 and a second through hole 206 are made on the end cap 2; d. Finally, the second positioning cavity 203, the second bearing hole 202, the second dicing groove 201, and the second flow channel groove 204 are ground and polished. S3, traveling wave rotor 6 machining a. First, the dimensions of the traveling wave rotor 6 are determined based on the dimensions of the conveying cavity 106, the first positioning cavity 105, and the second positioning cavity 203. The rotating body 601 and the traveling wave blade 602 are formed by integral machining. The traveling wave blade 602 is distributed along the outer circumferential side of the rotating body 601. The traveling wave blade 602 has an axisymmetric structure.

[0030] The thickness of the traveling wave blade 602 is less than the thickness of the conveying cavity 106, which is beneficial to forming multiple volume cavities and realizing the synchronous movement of each volume cavity to convey the medium.

[0031] b. Then, horizontally open a shaft hole 603 along the center of the rotating body 601; c. Next, the surfaces of the traveling wave blade 602 and the rotating body 601 are shot blasted. S4, Blocking Mechanism 7 Processing a. First, determine the size of the blocking structure according to the size and spacing of the first slicing groove 103 and the second slicing groove 201, make the corresponding limiting frame 701, and open the sliding groove 702 along the inner side of the limiting frame 701. The sliding groove 702 vertically penetrates the bottom of the limiting frame 701, and symmetrically open the channel 706 along the limiting frame 701 to avoid the movement of the traveling wave blade 602. The width of channel 706 is greater than the stroke of traveling wave blade 602, which can meet the requirement that traveling wave blade 602 moves continuously left and right during the continuous rotation of traveling wave rotor 6, and avoid collision between traveling wave blade 602 and limit frame 701.

[0032] b. Then, determine the dimensions of the slider support frame 703 according to the dimensions of the limit frame 701 and the travel stroke of the traveling wave blade 602, and process the corresponding slider support frame 703. The slider support frame 703 has a U-shaped structure. The length of the slider support frame 703 is less than the length of the limiting frame 701, which is beneficial for the traveling wave blade 602 to push the slider 704 during rotation, thereby driving the slider support frame 703 to reciprocate along the slide groove 702 of the limiting frame 701, thus meeting the requirements for the separation of the volume cavity.

[0033] c. Next, select two sliders 704, make blind holes on the sliders 704, install elastic members 705 along the blind holes, fix the other end of the elastic members 705 to the inner side of the slider support frame 703, and then install the slider support frame 703 in the groove 702 of the limit frame 701. By designing the blocking mechanism 7, the volume chamber between the inlet 101 and the outlet 102 can be separated. Since the medium has been squeezed out, the volume chamber on the inlet 101 side can be used to draw in the medium. The volume chamber on the outlet 102 side contains the medium. As the traveling wave rotor 6 rotates, the medium in this volume chamber can be squeezed out and output through the outlet 102. This allows for the synchronous input and output of the medium, improving the medium conveying efficiency.

[0034] The blocking mechanism 7 includes a limiting frame 701, a slider support frame 703, sliders 704, and an elastic element 705. The pump body 1 and the end cover 2 are respectively provided with a first slicing groove 103 and a second slicing groove 201. The limiting frame 701 is connected to the first slicing groove 103 and the second slicing groove 201. The limiting frame 701 is provided with a sliding groove 702. The slider support frame 703 reciprocates along the sliding groove 702. The two sliders 704 are connected to the inner side of the slider support frame 703 through the elastic element 705. The ends of the sliders 704 abut against the surface of the traveling wave blade 602. The limiting frame 701 is fixedly installed in the first slicing groove 103 and the second slicing groove 201, serving a positioning function. Since the two sliders 704 are in direct contact with the traveling wave blades 602 of the traveling wave rotor 6, when the traveling wave blades 602 push the two sliders 704 to move, they can drive the slider support frame 703 to move back and forth along the groove 702 on the limiting frame 701, ensuring that the volume cavity between the liquid inlet 101 and the liquid outlet 102 is separated. In the design, the hardness of the sliders 704 is less than that of the traveling wave blades 602. The sliders 704 are consumable parts. The elastic element 705 can provide elastic compensation for the sliders 704, so that the end of the sliders 704 always remains tangent to the traveling wave blades 602, meeting the requirements of medium input and output. The elastic element 705 can be a spring.

[0035] S5, Traveling Wave Pump Assembly a. First, select the rotating shaft 12 according to the size of the shaft hole 603, connect the traveling wave rotor 6 to the rotating shaft 12, and install bearings 11 on both sides of the traveling wave rotor 6 on the rotating shaft 12. Then, clamp the two sliders 704 of the blocking mechanism 7 onto the traveling wave blade 602, and install the traveling wave rotor 6 and the blocking mechanism 7 together in the pump body 1, so that the bearing 11 is limited to the first bearing hole 104, one end of the rotating body 601 of the traveling wave rotor 6 is limited to the first positioning cavity 105, and one end of the blocking mechanism 7 is limited to the first slicing groove 103. b. Then install the positioning shaft in the first positioning hole 109 of the pump body 1, and install the sealing ring 8 in the sealing groove 107; c. Next, assemble the end cap 2 onto the end of the pump body 1, so that the other end of the positioning pin 9 is inserted into the second positioning hole 205 of the end cap 2, the bearing 11 on the other side is limited to the second bearing hole 202, the other end of the rotating body 601 of the traveling wave rotor 6 is limited to the second positioning cavity 203, the other end of the blocking mechanism 7 is limited to the second slicing groove 201, and then install the fastener 13 between the first through hole 110 and the second through hole 206 on the pump body 1 and the end cap 2. d. Install the inlet connector 4 and the outlet connector 5 on the inlet 101 and outlet 102 of the pump body 1, respectively; e. Finally, select motor 3, attach coupling 10 to the output shaft of motor 3, install motor 3 at the end of pump body 1, insert coupling 10 into rotating shaft 12, and fix the screws on coupling 10 to rotating shaft 12 through process holes.

[0036] When the motor 3 is working, it drives the traveling wave rotor 6 to rotate along the conveying cavity 106. When the tangent of the traveling wave blade 602 is tangent to the inner wall of the end cover 2, a first volume cavity and a second volume cavity are formed, located on the side closer to the end cover 2. When the tangent of the traveling wave blade 602 is tangent to the inner wall of the conveying cavity 106, a third volume cavity and a fourth volume cavity are formed, located on the side closer to the motor 3. The first volume cavity, the third volume cavity, the second volume cavity and the fourth volume cavity are alternately distributed along both sides of the traveling wave blade 602.

[0037] When the first, second, third, and fourth volume chambers pass through the blocking mechanism 7, they are divided into two chambers by the blocking mechanism 7. One chamber is connected to the liquid inlet 101 and its volume gradually increases, while the other chamber is connected to the liquid outlet 102 and its volume gradually decreases, thus achieving pulsation-free delivery of the medium.

[0038] This assembly method is simple in steps, which can not only improve the assembly quality and precision of the traveling wave pump, but also reduce the noise of the traveling wave pump during operation, reduce friction and wear, improve working efficiency, extend service life, and at the same time ensure that the volume change of each volume chamber is constant, so as to achieve pulsation-free delivery.

[0039] In actual operation, taking the first volume chamber ① directly above as an example, the blocking mechanism 7 is clamped at the first volume chamber ① of the traveling wave blade 602. The first volume chamber ① is divided into two chambers. As the traveling wave rotor 6 continues to drive, the chamber of the first volume chamber ① near the liquid inlet 101 is connected to the liquid inlet 101 and begins to suck in the medium. At this time, the third volume chamber ③ is filled with the medium. The chamber of the first volume chamber ① near the liquid outlet 102 is connected to the liquid outlet 102. Because of the blocking mechanism 7, the medium in this chamber directly enters the liquid outlet 102 through the second flow channel groove 204 at the end cover 2 and is discharged. At the same time, the medium in the fourth volume chamber ④ begins to connect to the liquid outlet 102 and enters the liquid outlet 102 through the first flow channel groove 108 on the side of the pump body 1 and is discharged. When the traveling wave rotor 6 Figure 10 For example, after rotating 90° counterclockwise, the first volume chamber ① is filled with medium. The fourth volume chamber ④ sucks in and discharges the medium in the same way as the first volume chamber ①. As the traveling wave rotor 6 continues to drive, the chamber of the fourth volume chamber ④ near the inlet 101 is connected to the inlet 101 and begins to suck in the medium. At this time, the first volume chamber ① is filled with medium. The chamber of the fourth volume chamber ④ near the outlet 102 is connected to the outlet 102. Because of the obstruction of the blocking mechanism 7, the medium in this chamber directly enters the outlet 102 through the first flow channel groove 108 at the pump body 1 and is discharged. At the same time, the medium in the second volume chamber ② begins to connect to the outlet 102 and enters the outlet 102 through the second flow channel groove 204 on the side of the end cover 2 and is discharged. The traveling wave rotor 6 continues to rotate counterclockwise in the manner described above until the first volume chamber ①, the third volume chamber ③, the second volume chamber ②, and the fourth volume chamber ④ achieve continuous suction and discharge of the medium. This method not only allows the medium to move synchronously within the continuously alternating volume chambers, but also ensures a constant volume change in each volume chamber, achieving pulsation-free delivery. Simultaneously, it ensures smooth operation, reduces noise during pump operation, minimizes friction and wear, improves efficiency, and extends service life.

[0040] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A method for assembling a traveling wave pump, characterized in that... Includes the following steps: S1, Pump body machining a. First, determine the dimensions of the pump body according to the design requirements, and form the required pump body by casting. The pump body is provided with interconnected first bearing holes and coupling mounting holes, and process holes are opened along the outer side of the pump body facing the coupling mounting holes. b. Then, a first positioning cavity and a conveying cavity are sequentially opened on the pump body along the side close to the first bearing hole. The first positioning cavity is concentric with the first bearing hole. Then, a first flow channel groove and a first dicing groove are opened above the conveying cavity. The first flow channel groove connects the first dicing groove and the conveying cavity. c. Next, open an inlet and an outlet along the top of the pump body towards the delivery chamber, so that the inlet and outlet are connected to the delivery chamber; d. A sealing groove, a first positioning hole, and a first through hole are provided on the end face of the pump body near the conveying chamber. The sealing groove is distributed along the outer edge of the conveying chamber and the first slicing groove. e. Finally, the coupling mounting hole, the first bearing hole, the first positioning cavity, the conveying cavity, the first flow channel groove, the first dicing groove, the liquid inlet and the liquid outlet are ground and polished. S2, End Cap Processing a. First, determine the size of the end cover according to the size of the pump body, and form the required end cover by casting. Then, open the second positioning cavity and the second bearing hole in sequence from the right outside to the inside along the side of the end cover closest to the pump body. The second positioning cavity and the second bearing hole are concentrically set. b. Then, a second scribing groove and a second flow channel groove are made on the end cap above the second positioning cavity, and the second flow channel groove is connected to the second scribing groove. c. Next, a second positioning hole and a second through hole are made on the end cap; d. Finally, the second positioning cavity, the second bearing hole, the second dicing groove, and the second flow channel groove are ground and polished. S3, Traveling Wave Rotor Machining a. First, determine the dimensions of the traveling wave rotor based on the dimensions of the conveying cavity, the first positioning cavity, and the second positioning cavity. Then, form the rotating body and traveling wave blades through integral machining. The traveling wave blades are distributed along the outer circumferential side of the rotating body. b. Then, horizontally drill a shaft hole along the center of the rotating body; c. Next, the surfaces of the traveling wave blades and the rotating body are shot blasted. S4, Blocking Mechanism Processing a. First, determine the size of the blocking structure according to the size and spacing of the first and second slicing grooves, make the corresponding limiting frame, and open a sliding groove along the inner side of the limiting frame. The sliding groove vertically penetrates the bottom of the limiting frame, and symmetrical channels are opened on the limiting frame to avoid the movement of the traveling wave blade. b. Then, determine the size of the slider support frame according to the size of the limit frame and the travel stroke of the traveling wave blade, and process the corresponding slider support frame. The slider support frame has a U-shaped structure. c. Next, select two sliders, make blind holes on the sliders, install elastic elements along the blind holes, fix the other end of the elastic elements to the inside of the slider support frame, and then install the slider support frame into the groove of the limit frame. S5, Traveling Wave Pump Assembly a. First, select a rotating shaft according to the size of the shaft hole, connect the traveling wave rotor to the rotating shaft, and install bearings on both sides of the traveling wave rotor on the rotating shaft. Then, clamp the two sliders of the blocking mechanism onto the traveling wave blades, and install the traveling wave rotor and the blocking mechanism together into the pump body, so that the bearing is limited to the first bearing hole, one end of the rotating body of the traveling wave rotor is limited to the first positioning cavity, and one end of the blocking mechanism is limited to the first slitting groove. b. Then install the positioning shaft in the first positioning hole of the pump body and install the sealing ring in the sealing groove; c. Next, assemble the end cover onto the end of the pump body, so that the other end of the positioning pin is inserted into the second positioning hole of the end cover, the bearing on the other side is limited to the second bearing hole, the other end of the rotating body of the traveling wave rotor is limited to the second positioning cavity, the other end of the blocking mechanism is limited to the second slitting groove, and then install fasteners between the first through hole and the second through hole on the pump body and the end cover. d. Install the inlet connector and outlet connector on the inlet and outlet of the pump body respectively; e. Finally, select the motor, attach the coupling to the output shaft of the motor, install the motor at the end of the pump body, insert the coupling into the rotating shaft, and fix the screws on the coupling to the rotating shaft through the process hole.

2. The assembly method of a traveling wave pump according to claim 1, characterized in that: The process hole in step S1a is located on the side and bottom of the pump body, and the process hole is connected to the coupling mounting hole.

3. The assembly method of a traveling wave pump according to claim 1, characterized in that: In step S1 process b, the two first flow channel grooves are symmetrically distributed on both sides of the first dicing groove, and the depth of the first dicing groove is greater than the depth of the first flow channel groove.

4. The assembly method of a traveling wave pump according to claim 3, characterized in that: In step S2 process b, the two second flow channel grooves are symmetrically distributed on both sides of the second dicing groove. The depth of the second dicing groove is greater than the depth of the second flow channel groove. The second flow channel groove and the first flow channel groove are set to correspond to each other.

5. The assembly method of a traveling wave pump according to claim 1, characterized in that: In step S3 process a, the thickness of the traveling wave blade is less than the thickness of the conveying cavity.

6. The assembly method of a traveling wave pump according to claim 1, characterized in that: In step S4 process a, the width of the channel is greater than the stroke of the traveling wave blade.

7. The assembly method of a traveling wave pump according to claim 1, characterized in that: In step S4b, the length of the slider support frame is less than the length of the limiting frame.

8. The assembly method of a traveling wave pump according to claim 1, characterized in that: When the motor operates in step S5, it drives the traveling wave rotor to rotate along the conveying cavity. When the tangent of the traveling wave blade is tangent to the inner wall of the end cover, a first volume cavity and a second volume cavity are formed, located on the side close to the end cover. When the tangent of the traveling wave blade is tangent to the inner wall of the conveying cavity, a third volume cavity and a fourth volume cavity are formed, located on the side close to the motor. The first volume cavity, the third volume cavity, the second volume cavity, and the fourth volume cavity are alternately distributed along both sides of the traveling wave blade.

9. The assembly method of a traveling wave pump according to claim 8, characterized in that: When the first volume chamber, the second volume chamber, the third volume chamber, and the fourth volume chamber pass through the blocking mechanism, they are divided into two chambers by the blocking mechanism. One chamber is connected to the liquid inlet and its volume gradually increases, while the other chamber is connected to the liquid outlet and its volume gradually decreases, thereby achieving pulsation-free delivery of the medium.

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