Rail extrusion circulation driving system

Abstract

The invention provides a track extrusion circulation driving system, and relates to the field of peristaltic driving. The system comprises rack rail extrusion driving devices, a flexible guide pipe and liquid metal, and the flexible guide pipe is extruded through one or more rack rail extrusion driving devices to form a closed loop to circularly drive the liquid metal. The toothed rail structure pulls the extrusion device to push liquid in the pipeline to conduct circular driving so as to achieve the purpose of stable conveying of large-fall high-density liquid, one or more driving devices can be arranged to be connected in series for driving according to the driving capacity requirement, the defect that a traditional driving device is small in driving force is overcome, and the applicability and the driving capacity of the driving device are improved; the defect that a driving device transports large-fall high-density liquid at the present stage is overcome.

Description

Technical Field

[0001] The invention relates to a track extrusion circulation drive system, specifically, a gear track structure pulls an extrusion structure to push the liquid in a pipeline for circulation drive to achieve the purpose of stable delivery of high-density liquid with a large drop, and belongs to the field of peristaltic drive. Background Art

[0002] Currently, driving devices mostly use centrifugal pumps, gear pumps, peristaltic pumps and reciprocating pumps. Centrifugal pumps such as Comparative Patent 1 (publication number CN 115111167 A) and gear pumps such as Comparative Patent 2 (publication number CN 114542455A) are not suitable for circulating drive of large drop high-density liquids due to easy leakage. Common peristaltic pumps such as Comparative Document 3 (publication number CN 107677698 B) use rollers or pressure shoes to compress the hose when rotating, thereby sucking the liquid into the hose through the vacuum formed. Except for the pump hose, no other parts will contact the liquid, and there is no risk of mutual contamination between the pump and the liquid. However, its driving force is relatively small, and it cannot meet the requirements for driving large drop high-density liquids.

[0003] Patent CN 216950792 U discloses a tube pushing mechanism for a reciprocating circulation peristaltic pump. The mechanism uses a translation mechanism and a transverse mechanism to drive the roller on the pump core to move along the inner side of the catheter. At the same time, the roller squeezes the catheter and pushes the liquid in the catheter to flow. Although it can solve the problem of small flow rate of existing peristaltic pumps, the mechanism has three defects in liquid delivery through unilateral extrusion of the catheter: first, the roller moves along the inner side of the catheter to squeeze the catheter to push the liquid to flow, but the outer side of the catheter is not fixed, and cannot form an effective support or reaction force to achieve a complete extrusion effect; second, the two sides of the pipeline are squeezed at the same time to form a hedging effect, which not only fails to form an effective cycle, but also offsets the driving force formed; third, a single peristaltic pump system will limit the driving energy of large drop and large flow rate, and the required roller size will be significantly increased, which is not conducive to the spatial layout of other equipment.

[0004] A reciprocating pump is a positive displacement pump that uses the periodic change of the volume in the working chamber to achieve the purpose of conveying liquids. It is widely used in various industries such as petroleum, chemical industry, water supply, thermal power, nuclear industry, pharmaceuticals, and food. Patent CN115717582A discloses a reciprocating pump, including a base, on which a motor is installed, the output shaft of the motor is fixedly connected to the input shaft of the reducer, the output shaft of the reducer is connected to a transmission mechanism for uniform material conveying and flow control, a plurality of sealing cylinders are installed on the base, and plungers are slidably connected in the sealing cylinders, the plungers are connected to the transmission mechanism, the end of the sealing cylinder away from the transmission mechanism is fixedly connected to the pump cylinder, one end of the pump cylinder is fixedly sleeved into the material pipe, and the other end of the pump cylinder is fixedly sleeved into the discharge pipe. The plunger is reciprocated at a uniform speed by the transmission mechanism, so that the material conveying flow rate sucked in the pump cylinder remains uniform, achieving the purpose of uniform conveying, and the number of moving plungers is adjusted by the transmission mechanism to achieve the adjustment of the flow rate, which is convenient to use. However, it cannot solve the problem that the reciprocating pump is suitable for transmitting small flow and low-density liquids due to its self-priming characteristics, but is not suitable for driving large-drop and large-flow liquids.

[0005] In response to the above problems, combined with the actual situation of traditional driving methods and the characteristics of large-drop high-density liquids, the inventor conducted analysis and, based on existing theories and practical experience, conducted research and development based on the peristaltic pump driving principle, and finally filed this patent application. Summary of the invention

[0006] The purpose of the present invention is to provide a rail extrusion circulation drive system, which uses a rack structure to pull the extrusion device to push the liquid in the pipeline for circulation drive to achieve the purpose of stable transportation of large-drop high-density liquid. One or more drive devices can be set in a chain to drive according to the driving capacity requirements, thereby overcoming the small driving force of traditional drive devices, improving the applicability and driving capacity of the drive devices, and making up for the shortcomings of current drive devices in transporting large-drop high-density liquids.

[0007] The invention provides a track extrusion circulation drive system, comprising a rack extrusion drive device, a flexible conduit and liquid metal. The flexible conduit is extruded by one or more rack extrusion drive devices to form a closed loop to circulate and drive the liquid metal.

[0008] Furthermore, the rack extrusion drive device is composed of a rack track and a track car.

[0009] Furthermore, the rack track includes a fixing frame, a one-way valve, a rack and a protective shell, wherein the fixing frame is nested on the outside of the flexible conduit, the one-way valve is bonded to the inside of the conduit, the motor is fixed on both sides of the fixing frame, and the rack is connected to the motor.

[0010] Furthermore, the rail vehicle includes an upper roller, a lower roller, a hydraulic device, a driving gear and an auxiliary shaft. The two ends of the lower roller are aligned and arranged in parallel. The upper roller and the lower roller are connected by a hydraulic device. The driving gear is fixedly arranged on both sides of the upper roller and the lower roller, and the auxiliary shaft is fixed directly below the driving gear.

[0011] Further, the rail car is arranged on a rack track.

[0012] Furthermore, the rail vehicle squeezes the flexible conduit through the upper roller and the lower roller.

[0013] Furthermore, the heat exchange is configured to transfer the heat of the computed tomography (CT) device to the outside air by setting up a heat exchanger, and the heat exchanger is connected to the extrusion drive device through a flexible hose.

[0014] Compared with the prior art, the beneficial effects of this patent are:

[0015] First, this patent uses a rack structure to pull the extrusion device to drive the liquid. The liquid metal only contacts the pipe or pipe fittings, there is no contamination inside the driving device, the sealing is better, and the fluid in the pipe moves more smoothly; secondly, the extrusion-pushing method of this patent provides a larger driving force, which can achieve large drop and large flow liquid driving. In principle, if the motor power is sufficient, it will be suitable for liquids of any density and various application scenarios; in addition, due to the extrusion-pushing effect, the "turbulent effect" it produces makes the temperature of the driven liquid evenly distributed throughout the entire pipe cross-section, avoiding the temperature difference in the pipe caused by different heat dissipation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a rail extrusion circulation drive system of the present invention

[0018] Figure 2 A partial enlarged schematic diagram of the track drive device

[0019] Figure 3 A schematic diagram of a rack rail vehicle based on the present invention; DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] A rail extrusion circulation drive system is further described below in conjunction with the accompanying drawings. Before that, it should be pointed out that the embodiments described in the accompanying drawings are only for demonstration and cannot be understood as limiting the present invention.

[0024] Combination Figure 1 to Figure 3 A rail extrusion circulation drive system based on this patent is demonstrated.

[0025] like Figure 1 As shown, the track extrusion cycle drive system described in this patent is composed of four rack extrusion drive devices GDQD1, GDQD2, GDQD3, GDQD4 and a flexible catheter DG; wherein GDQD1, GDQD2, GDQD3 and GDQD4 are nested on DG at a distance x, and run alternately at intervals of time t, wherein the time t (s) is determined by the infusion power P (m3 / s), the period T(s) of each drive of the rack extrusion drive device GDQD, the distance x(m) between the rack extrusion drive devices GDQD and the area S(m 2 ) decides, among which:

[0026]

[0027] When the fluid passes through the rack extrusion drive device GDQD1, the rack extrusion drive device GDQD1 starts to operate, and the fluid in the tube obtains driving force by rolling and squeezing the flexible conduit DG. At this time, the one-way valve DXF1 at the inlet prevents the fluid from flowing back, and the one-way valve DXF2 at the outlet allows the fluid to flow out. Therefore, the fluid flows along the driving direction of the rack extrusion drive device GDQD1, and under the action of the driving force, overcomes resistance such as friction, gravity and viscosity and moves along the flexible conduit DG to the rack extrusion drive device GDQD2. The rack extrusion drive device GDQD2 starts to operate according to the interval time t calculated above, and repeats the above steps to make the fluid flow into the rack extrusion drive device GDQD3. In this way, the operation is alternated between each track drive device, and the fluid driven by the rack extrusion drive device GDQD4 flows into the track drive device GDQD1, so that the fluid can circulate.

[0028] like Figure 2 As shown, based on a rail extrusion circulation drive system described in this patent, its rail driving device is a rack rail. The rack rail includes two fixed frames GDJ1 and GDJ2; two one-way valves DXF1 and DXF2; two racks CG1 and CG2; a rail car GDC; and a protective shell WK. Among them, the fixed frames GDJ1 and GDJ2 are nested on the outside of the flexible conduit DG; the one-way valves DXF1 and DXF2 are bonded to the inside of the flexible conduit DG; the motors DJ1 and DJ2 are fixed on both sides of the fixed frames GDJ1 and GDJ2; the racks CG1 and CG2 are connected to the motors DJ1 and DJ2; and the rail car GDC is arranged on the racks CG1 and CG2.

[0029] Among them, rail car GDC Figure 3 As shown, it includes an upper roller sgl; two lower rollers xgl1 and xgl2; four hydraulic devices yy1, yy2, yy3 and yy4, two driving gears qd1 and qd2 and two auxiliary shafts fz1 and fz2. The two lower rollers xgl1 and xgl2 are aligned at both ends and arranged in parallel. The upper roller sgl and the lower roller xgl are connected to four nodes through four hydraulic devices yy1, yy2, yy3 and yy4. The driving gears qd1 and qd2 are fixedly arranged on the left and right sides of the upper roller sgl and the two lower rollers xgl1 and xgl2. The auxiliary shafts fz1 and fz2 are fixed directly below qd1 and qd2 respectively.

[0030] According to the above arrangement, the working process of a track extrusion circulation drive system described in this patent is as follows: when the fluid passes through the track drive device GDQD1, the track drive device GDQD1 starts to operate, and the fluid in the tube obtains driving force by rolling and squeezing the conduit DG. At this time, the one-way valve DXF1 at the inlet prevents the fluid from flowing back, and the one-way valve DXF2 at the outlet allows the fluid to flow out. Then the fluid flows along the driving direction of the track drive device GDQD1, and under the action of the driving force, it overcomes resistance such as friction, gravity and viscosity and moves along the conduit DG to the track drive device GDQD2. The track drive device GDQD2 starts to operate according to the interval time t calculated above, and repeats the above steps to allow the fluid to flow into the track drive device GDQD3. In this way, each track drive device operates alternately, and the fluid driven by the track drive device GDQD4 flows into the track drive device GDQD1, so that the fluid can circulate.

[0031] According to the above arrangement, the specific driving process of a rail extrusion circulation drive system described in this patent is as follows: first, the hydraulic devices yy1, yy2, yy3 and yy4 operate to drive the upper roller sgl and the lower rollers xgl1 and xgl2 to close and extrude the conduit DG; then the driving gears qd1 and qd2 operate to push the rail car GD forward on the racks CG1 and CG2, so that the closed upper roller sgl and the lower rollers xgl1 and xgl2 squeeze the conduit DG and promote the flow of fluid in the tube; after the push is completed, the upper roller sgl is separated from the lower rollers xgl1 and xgl2, and the rail car GD runs in the opposite direction to the entrance of the rail drive device GDQD1.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail extrusion circulation drive system, characterized in that: include: The rack extrusion drive device, the flexible conduit and the liquid metal are used to extrude the flexible conduit through one or more rack extrusion drive devices to form a closed loop to circulate and drive the liquid metal.

2. The rail extrusion circulation drive system according to claim 1, characterized in that: The rack extrusion drive device consists of a rack track and a track car.

3. The rail extrusion circulation drive system according to claim 2, characterized in that: The rack track includes a fixing frame, a one-way valve, a rack and a protective shell, wherein the fixing frame is nested on the outside of the flexible conduit, the one-way valve is bonded to the inside of the conduit, the motor is fixed on both sides of the fixing frame, and the rack is connected to the motor.

4. The rail extrusion circulation drive system according to claim 2, characterized in that: The rail vehicle includes an upper roller, a lower roller, a hydraulic device, a driving gear and an auxiliary shaft. The two ends of the lower roller are aligned and arranged in parallel. The upper roller and the lower roller are connected by a hydraulic device. The driving gear is fixedly arranged on both sides of the upper roller and the lower roller, and the auxiliary shaft is fixed directly below the driving gear.

5. The rail extrusion circulation drive system according to claim 4, characterized in that: The rail cars are arranged on rack tracks.

6. The rail extrusion circulation drive system according to claim 4, characterized in that: The rail car squeezes the flexible conduit via upper and lower rollers.

7. The rail extrusion circulation drive system according to claim 1, characterized in that: The heat exchange is configured to transfer the heat of the computer tomography device to the outside air by setting a heat exchanger, and the heat exchanger is connected to the extrusion drive device through a flexible hose.

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