KR101762157B1 - Adjustable Reciprocating Pump System - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder pump system for transferring fluids, and more particularly to a cylinder pump system for efficiently controlling a viscosity, a feed rate, a pump efficiency, a system protection, etc. of not only water but also various transport fluids by variably controlling a driving force transmission structure with respect to the piston To a cylinder pump for transferring fluid.
The variable fluid delivery pump system of the present invention comprises a cylinder 11 having an inlet 13 and an outlet 14 and a pump 12 having a piston 12 reciprocating linearly in the cylinder 11, A main body 10; And an inlet check valve (30) provided at the inlet (13) side of the pump body (10) to allow the flow of the fluid flowing from the inlet pipe (1) but prevent backflow; A discharge check valve (40) provided at the discharge port (14) side of the pump body (10) to allow flow of the fluid discharged to the discharge pipe (2) but prevent back flow; A driving force transmitting portion 20 for transmitting a driving force transmitted from an external driving source to the piston 12 in a pivoting manner so that the piston 12 linearly reciprocates within the cylinder 11; And pivot adjusting means (50) provided with a pivot shaft (53) for providing a pivot position with respect to the driving force transmitting portion (20) and variably controlling the position of the pivot shaft (53).

Description

[0001] The present invention relates to an adjustable reciprocating pump system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder pump system for transferring fluids, and more particularly, to a cylinder pump system for efficiently controlling the viscosity, feed amount, pump efficiency, and system protection of various transport fluids by variably controlling a driving force transmission structure for a piston To a cylinder pump for transferring fluid.

The pump is a device that transports liquid or gas fluid through piping by pressure action, or pushes fluid in a low-pressure container through piping into a high-pressure vessel. It is equipped with facilities for preventing pollution such as sewage treatment facilities, Oil wells such as natural gas, fluid transportation facilities for the chemical industry, and pumping water facilities. Especially, in the environmental pollution prevention facilities such as sewage treatment facilities, waste water treatment facilities, livestock manure treatment facilities, livestock manure recycling facilities, and waste disposal facilities, various sludges are obtained at various stages of the treatment process. Such sludge and various industries Pumps used for the transport of medicines or special fluids such as pulp, viscose and petroleum should meet the requirements reinforced in terms of performance and management.

Generally, when these pumps are installed at the site of use, they are often installed in places that receive little technical assistance, and after the installation is started, it is difficult to stop the operation and change the internal structure In addition, it should be constructed and installed as robust and simple structure as possible at the time of new introduction in consideration of various viscosity of the transferred fluid, variable situation of the pump installation site, aging of the pump device,

However, even if the viscosity of the transferred fluid changes or the characteristics of the driving force (for example, the rotation fluctuation period, the range of fluctuation angles) change or the pump system needs to be changed due to the aging of the pump system, There is a problem that it can not cope with. In addition, the existing pump system can not change the feed flow rate. Therefore, it is installed in a structure that always operates at the maximum feed flow rate, and a separate piping structure for discharging or returning by bypassing the unnecessary flow rate is added.

In order to solve such a problem, a technique for controlling a driving force input from a driving source has been developed. As a development example thereof, there is a technique relating to a variable fluid transfer pump system as shown in Patent Publication No. 10-1382049 and Patent Publication No. 10-0337565 (hereinafter, referred to as "prior art"). As shown in FIG. 1, the variable fluid transfer pump system disclosed in Japanese Patent Application Laid-Open No. 10-1382049 of the related art includes a hydraulic pressure regulating part 1 for regulating the driving force, so that the pump 10 is variably driven . In addition, the pump system disclosed in Patent Publication No. 10-0337565 employs a similar basic structure in that it adjusts hydraulic pressure to realize variable displacement.

However, in the above-mentioned prior art, variable driving of the pump by the hydraulic pressure regulator 1 is too complicated in its overall structure, resulting in lower practicality due to a decrease in reliability of the system and increase in maintenance cost, For example, when the operation structure of the pump needs to be changed due to the deterioration of the pump system or the change of the rotational oscillation period, the swing angle range, etc.), there is a problem in that it is difficult to appropriately cope. In addition, when a plurality of the pumps 10 are provided, the disadvantages are further increased.

Patent Registration No. 10-1382049 (April 4, 2014) Patent Registration No. 10-0337565 (Jul. 18, 2002)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to improve the reliability of the system by maintaining the structure of the entire pump system relatively simple while varying the driving structure of the pump system so as to cope with a variable situation of the pump installation site, And to provide an adjustable pump system that avoids an increase in maintenance costs.

Further, in the present invention, the pivot adjusting means adjusts the pivot position of the driving force transmitting portion by referring to the sensing signal of the monitoring means, thereby effectively adjusting the pivot position of the driving force transmitting portion in accordance with the viscosity of the transported fluid, the flow rate of the pump, And to provide a variable pump system capable of coping with such problems.

Also, in the present invention, a variable pump system capable of improving the expandability of a pump system by adopting a structure in which the second links are coupled and fixed along the longitudinal direction of the drive shaft.

In addition, in the present invention, there is provided a variable-type pump system including a link guide member so that the motion of the driving force transmitting portion can be stably performed in a motion plane.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

The variable fluid transfer pump system is a reciprocating pump system 100 for transferring fluids in connection with an inlet pipe 1 and an outlet pipe 2 and includes an inlet 13 and an outlet 14 A pump body 10 provided with a piston 12 reciprocating in a straight line in the cylinder 11; And an inlet check valve (30) provided at the inlet (13) side of the pump body (10) to allow the flow of the fluid flowing from the inlet pipe (1) but prevent backflow; A discharge check valve (40) provided at the discharge port (14) side of the pump body (10) to allow flow of the fluid discharged to the discharge pipe (2) but prevent back flow; A driving force transmitting portion 20 for transmitting a driving force transmitted from an external driving source to the piston 12 in a pivoting manner so that the piston 12 linearly reciprocates within the cylinder 11; And a pivot adjusting means (50) provided with a pivot shaft (53) for providing a pivot position with respect to the driving force transmitting portion (20) and variably controlling the position of the pivot shaft (53).

At this time, the pivot adjusting means 50 of the variable fluid transfer pump system according to the embodiment of the present invention calculates the target position of the pivot shaft 53 with reference to the sensing signal of the monitoring means 58, (57) for providing a drive signal to the pivot drive means (56) to move the piston (52) to the target position, wherein the sensing signal of the monitoring means (58) A rotation frequency of the external driving force, a rotation angle, and a strain of the driving force transmission portion 20, as shown in FIG.

In addition, in the variable fluid transfer pump system according to an embodiment of the present invention, the driving force transmitting portion 20 includes a first link 21 having one end rotatably connected to the piston 12; And a second link (22) reciprocating in a predetermined angular range by a driving force transmitted from an external driving source; The pivot shaft 53 is rotatably connected to the other end of the first link 21 and the distal end of the second link 22, (25), the pivot adjusting means (50) comprising: a pivot guide member (54) provided on the support member (51); And a pivot body 52 provided on one side with the pivot shaft 53 and movable along the pivot guide member 54. The position of the pivot body 52 is adjusted by adjusting the position of the pivot body 52, And may have a structure capable of moving the position of the pivot shaft 53 within the slot part 25. [

The variable fluid transfer pump system includes a drive shaft 62 rotatably fixed to a support frame 65 through a support bearing 63 and is rotatably supported by the drive force transmitting portion The second link 22 of the first pump 20 is fixedly coupled to supply the external drive energy to at least one pump main body 10.

In addition, the variable fluid transportation pump system may include an even number of second links 22 on the driving shaft 62, and each pair is provided to have an opposite phase with each other, One inlet pipe is branched to the inlet 13 of the pump bodies 10 receiving the drive force from the pump bodies 22 so that the pair of pump bodies 10 share the inflow paths of the fluids The inflow pipe (1) includes a branch portion of the inflow pipe (1), which can be formed as a horizontal pipe.

In addition, the variable fluid transfer pump system according to the embodiment of the present invention is constructed by additionally providing a link guide member 70 such that each link of the driving force transmitting portion 20 performs link motion stably in a plane .

According to the embodiment of the present invention, by adjusting the pivot position of the driving force transmitting portion by the pivot adjusting means, the driving force of the pump can be set differently according to the fluid to be conveyed, and the feeding flow rate of the pump can be adjusted, It is possible to effectively cope with the case where the oscillation cycle of the energy and the oscillation amplitude are changed and the degree of aging of the pump system must be considered.

In addition, by adopting a structure for simply adjusting the pivot position, the structure of the entire system is relatively simple, thereby improving the manufacturing cost and reliability of the system. By using only the pivot position, And the support stress can be easily predicted, so that the control algorithm of the pivot control means can be simply constructed.

Further, by adopting a structure in which the second link of the drive force transmitting portion is disposed on the drive shaft supported by the support bearing, the expansion performance of the system is improved by arranging the plurality of second links along the longitudinal direction of the drive shaft.

In addition, it is possible to prevent the cavitation phenomenon of the pipeline by forming the horizontal piping by connecting the branch pipes connected to the branch piping, Can be obtained.

Further, by providing the link guide member, each link of the driving force transmitting portion can stably move in the plane of motion, thereby improving the mechanical stability of the pump system and improving the durability of the pump system.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

Figure 1. Conventional reciprocating pump system.
2 is a perspective view of a variable reciprocating pump system according to an embodiment of the present invention.
3 is a plan view of a pump system according to an embodiment of the present invention.
Figure 4. Front view of a pump system according to an embodiment of the present invention.
Figure 5 is a side view of a pump system in accordance with an embodiment of the present invention.
6. Fig. 6 is a partial cut-away view of Fig. 5A.
7. Fig. 7 is a partial enlarged view of a portion C in Fig.
8. FIG. 8 is a schematic view illustrating the installation of the pump system according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 to 7, the variable reciprocating pump system of the present invention mainly includes a pump body 10 and an inlet check valve 30, a discharge check valve 40, a driving force transmitting portion 20, (50) and is mounted on the base member (B). Here, the base member (B) may be selected as a plate structure or a frame structure using a frame, and the detailed structure thereof is not limited. Further, the base member B may be a structure for supporting the variable reciprocating pump system of the present invention at an upper portion of a column structure vertically erected from the ground surface, and may be provided on a support structure in the form of a cantilever- The structure for supporting the variable reciprocating pump system of the present invention can also be selected. In the present embodiment, one of the input forms of the driving source is described below with respect to the rotational oscillating motion, but the present invention is not intended to be limited. In addition, the pump system of the present invention can be used not only in the case where the period of the rotational fluctuation and the range of the fluctuation angle are constant but also at least one of them continuously fluctuates in the rotational oscillating motion of the drive source.

The pump main body 10 comprises a cylinder 11 and a piston 12 reciprocating linearly in the cylinder 11. A lower portion of the cylinder 11 is connected to an inlet port (13), and a discharge port (14) communicating with the discharge pipe (2). Here, the cross-sectional shape and size of the cylinder are formed to correspond to the outer surface of the piston, a predetermined gap is provided between the inner wall of the cylinder and the side wall of the piston, and at least one O-ring (not shown) is provided as a sealing means on the side wall of the piston . It is preferable to select the vertical dimension (thickness) of the piston so as not to be small so as to maintain the posture of the piston when reciprocating the piston in the cylinder. In the present embodiment, the structure provided on the base member B with the longitudinal direction of the cylinder up and down is exemplarily shown. However, the mounting posture of the cylinder in the present invention is not limited to the above embodiment. For example, the variable structure of the present invention can be effectively applied even when the cylinder is installed in the base member B such that the longitudinal direction of the cylinder is horizontally oriented or inclined at a predetermined angle.

It is preferable that the cylinder and the piston are formed of a material that does not cause denaturation or corrosion by the transfer fluid, and that the material and the detailed structure are selected so as to minimize the mass of the reciprocating piston.

An inflow check valve 30 is provided on the side of the inlet 13 of the pump main body 10 to allow the flow of the fluid flowing from the inflow pipe 1 to be prevented from flowing backward, A discharge check valve 40 is provided on the side of the discharge check valve 14 so as to allow the flow of the fluid discharged to the discharge pipe 2 to flow but prevent the reverse flow of the fluid and the detailed structure of the inflow check valve 30 and the discharge check valve 40 The structure illustrated in Fig. 7 can be employed.

The driving force transmitting portion 20 for transmitting the driving force transmitted from the external driving source to the piston 12 transmits the driving force of the external driving source to the piston 12 in a pivoting manner so that the piston 12 rotates in a straight line And is driven to reciprocate.

In the present invention, the means for varying the driving force of the driving force transmitting portion 20 includes a pivot adjusting means 50, which pivotally positions the pivot position of the driving force transmitting portion 20 Position of the piston 12, thereby changing the size and driving distance of the driving force transmitted to the piston 12. By using such a relatively simple structure, it is advantageous to improve the reliability of the system, the pump efficiency, and the durability.

The driving force transmitting portion 20 includes a first link 21 and a second link 22, a pivot 22, a pivot 22, Link 23 so as to have a deformed structure of the slider-crank mechanism. The first link 21 is rotatably connected to the piston 12 of the pump body 10 by being hinged at one end thereof and the second link 22 is connected to the piston 12 of the pump body 10 by a predetermined driving force And the pivot link 23 is hinged to the other end of the first link 21 and the end of the second link 22 so as to be pivotally connected to each other, 22, the first link 21 is provided with a slot portion (not shown) extending in the longitudinal direction thereof so as to allow the pivot shaft 53, 25 are provided so that the pivotal position of the pivotal link 23 is adjusted within the slot 25 by the pivotal adjustment means 50. At this time, it is preferable to consider the material and the dimensions so that the structural strength of the portion where the slot 25 is formed in the pivot link 23 is sufficiently secured.

The pivot adjusting means 50 is configured to include a pivot body 52 and a pivot shaft 53 and a pivot guide member 54. The pivot guide member 54 is provided on the support member 51 and may be formed in the form of a through bar as shown in FIGS. 2, 4, 6, 8 and so on, And the pivot guide member 54 functions to stabilize the posture of the pivot body 52 while guiding the movement of the pivot body 52 do. Here, the support member 51 may be separately formed and coupled to the base member B, but may be formed as a part of the base member B for simplification of the entire structure. The pivot body 52 is movably provided along the pivot guide member 54 and the pivot shaft 53 is provided on one side of the pivot body 52. The pivot shaft 53 is connected to the pivot link 23, So that the pivotal support of the driving force transmitting portion 20 with respect to the pivot link 23 is performed. The positioning of the pivot shaft 53 within the slot portion 25 is realized by adjusting the position of the pivot body 52.

The positional movement of the pivot shaft 53 by the pivot adjusting means 50 may be manually operated, but an automated control method by the controller is preferred for effective use of the pump system. The automatic control system includes a pivot driving unit 56 and a pivot control unit 57 and a monitoring unit 58. The target position of the pivot shaft 53 is calculated by referring to the sensing signal of the monitoring unit 58 And controls the driving of the pivot driving means 56 to move the pivot body 52 to the target position.

The pivot drive means 56 may be installed inside the pivot body 52 to directly drive the pivot body 52. The pivot drive means 56 may be installed on the pivot guide member 54 or the support member 51 side, A method of driving the pivot body 52 through the transmission mechanism is preferable from the viewpoint of ensuring driving force and maintenance. For example, a structure in which the pivot guide member 54 is formed of a screw-type drive rotation shaft and a nut-shaped through hole is formed in the pivot body 52 to drive the pivot body 52 by a ball screw system At this time, as the pivot drive means 56, the motor is directly coupled to the screw-type rotation shaft and driven, or is transmitted to the screw-type rotation shaft through a gear box, a chain, or the like. At this time, since the driving rotary shaft of the pivot driving means 56 may also serve as the pivotal guiding member 54, it can be seen that the pivot driving means 56 and the pivotal guiding member 54 are integrally formed.

The pivot control unit 57 calculates the target pivot position using the sensing signal of the monitoring means 58 and reflects the result to deliver the appropriate driving command signal to the pivot driving means 56. [ The pivot control 57 is preferably located near the pivot drive means 56, as shown in FIG. 8, but may be located in other configurations or spaces of the pump system as needed.

The monitoring means 58 detects at least one or more of the viscosity of the transfer fluid and the flow rate of the pump system, the rotation frequency of the external driving force, the rotation angle, and the strain of the driving force transmission unit 20, The transmission and pivot control unit 57 calculates the target position of the pivot shaft 53 by referring to the sensing signal of the received monitoring means 58. The pump system of the present invention has a structure The driving force, the driving force, and the like can be easily predicted by adopting the method of simply varying the pivot position only in accordance with the magnitude of the driving force required according to the viscosity of the transported fluid, , The angle of rotation, the required flow rate of the piston, and the like, taking into account the magnitude of the stress sensed in each configuration and the degree of aging of the pump system Pursuant to the transfer force, has an advantage that can easily calculate the pivot axis target position.

The pump system of the present invention may include a driving force distribution member 60 for improving the expandability of the system and the like. The driving force distribution member 60 is rotatably supported on the support frame 65 via a support bearing 63 And a plurality of second links 22 of the driving force transmitting portion 20 are fixedly installed along the longitudinal direction of the driving shaft 62. Thus, external driving energy is transmitted to the pump bodies 10, As shown in Fig. That is, by adopting a structure in which the driving force is distributed by coupling the second link 22 of each driving force transmitting portion 20 to one driving shaft 62, the effect of improving the expandability of the system as compared with the prior art is obtained. At this time, a plurality of pump bodies 10 may be arranged concentrically on either side along the drive shaft. However, in the present embodiment, as shown exemplarily in FIGS. 2 to 6, Dispersing and arranging the pump bodies 10 is preferable from the viewpoint of space efficiency.

On the other hand, an even number of second links 22 are provided on the driving shaft 62, and each pair is provided to have an opposite phase to each other. Further, a driving force is transmitted from the second links 22, By connecting one inflow pipe to the inflow port 13 of the receiving pump bodies 10 in a branched structure so that each of the pump bodies 10 shares the inflow paths of the fluids with the inflow pipe 1 The branching of the inflow pipe 1 from the inflow port 13 of the pump bodies 10 to the branch point of the inflow pipe 1 can be effected, If the portion is formed as a horizontal pipe, there is also an effect of improving the cavitation phenomenon often occurring in the inflow pipe of the pump system.

However, if a pump system is actually manufactured and installed, it is possible to increase the rigidity of the link due to the eccentricity of mass, the arrangement structure, the alignment error, and the machining tolerance of each structure. The structure often deviates from the plane of motion, which is further exacerbated as the operating time of the pump system increases, causing problems in terms of operational reliability, durability, and noise performance of the overall system. In order to solve such a problem, the pump system of the present invention may further include a link guide member 70 such that each link of the driving force transmitting portion 20 performs link motion stably in the plane of motion. The link guide member 70 may be formed separately and extend to the support member 51 of the pivot adjusting means 50 which is coupled to the base member B or is a peripheral component as illustrated in Fig.

8, in order to operate the pump system of the present invention effectively, the monitoring means 58 is installed in the inlet pipe 1 or the outlet pipe 2, A fluid viscosity measuring sensor, a flow rate measuring sensor, and the like. Here, the fluid viscosity measuring sensor may employ a temperature sensor and refer to a viscosity value at a measured temperature by using a temperature-viscosity characteristic table or a temperature-viscosity approximation equation of the transported fluid. The monitoring means 58 may be provided with a stress measuring sensor on at least one of the links of the driving force transmitting portion 20, and a strain gauge, a method using a pressure device, or the like may be considered. The monitoring means 58 may be provided on the input side of the driving source to detect the dynamic characteristics of the driving force such as the rotational oscillation period and the rotational oscillation angle of the driving source. An encoder may be installed on the driving shaft 62 .

It is possible to easily select the target position of the pivot shaft 53 by the kinematic relationship when the magnitude of the driving force required to drive the piston 12 is to be adjusted with reference to the viscosity of the measured transported fluid, The driving force transmitting portion 20 moves the driving force of the driving source to the effective viscosity of the conveying fluid by moving the pivot body 52 on the pivot guide member 54 by driving the pivot driving means 56 by the drive command of the driving force So that the piston 12 can be driven.

When the stress of at least one of the links of the driving force transmitting portion 20 is measured by the monitoring means 58, it is possible to perform the operation considering the reliability and durability of the pump system. For example, when the pivot link 23 22 and 23 and the piston 12 due to the mechanistic relationship between the sensed stress value and the driving force transmitting portion 20 when the stress is measured from the monitoring means 58 installed on the link 21, The target position of the pivot shaft 53 can be selected in consideration of the required driving force or the stress distribution of each structure, and based on this, the pivot control unit 57 Control is performed so as to appropriately provide the necessary transfer force to the piston 12 or take into consideration the degree of deterioration of each component so as to operate in such a range that the stress of the component does not excessively rise. It is able to. In this case, the efficiency of the pump system may be reduced, but there is a technical / economic meaning in that the failure or damage of the pump system can be minimized while avoiding the operation interruption of the pump system.

When an encoder is provided as the monitoring means 58 to the drive shaft 62 to sense the dynamic characteristics of the drive force such as the rotational oscillation period and the rotation oscillation angle of the drive source, the dynamic characteristics of the drive force, So that the operation of the pump system can be managed. That is, considering the dynamic characteristics of the driving force, etc., the pivot control unit 57 controls the pivot driving unit 56 with a control algorithm that secures the required flow rate and minimizes the fluctuation of the flow rate, thereby improving the performance and operation efficiency of the pump system.

In addition, the torque sensor as the monitoring means 58 may be installed on the drive shaft 62 to sense the dynamic characteristics of the driving force and to reflect the driving force to the control of the pivot driving means 56, thereby improving the performance and operation efficiency of the pump system.

In addition, if a plurality of types of sensors are included in combination as the monitoring means 58, the control effect by the pivot control unit 57 can be further enhanced, Which can be achieved by the pump system of the present invention including a basic structure for regulating the flow rate of the fluid.

In the present embodiment, the input of the driving source has been described with respect to the rotational oscillating motion, but is not intended to limit the use of the present invention. That is, it is obvious to a person skilled in the art that the present invention can be used as it is by adding a configuration for switching the rotational motion to the oscillating motion with respect to the driving input rotating in one direction.

It will be understood by those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the appended claims. It will be possible. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be implemented in a distributed or divided manner, and components described as being distributed or partitioned may also be implemented in a combined manner to the extent understood by one of ordinary skill in the art. have.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

1: inlet pipe 2: outlet pipe
10: pump body 11: cylinder
12: piston 13: inlet
14: Outlet
20: driving force transmitting portion 21: first link
22: second link 23: pivot link
25:
30: inlet check valve 40: exhaust check valve
50: Pivot adjusting means 51: Support member
52: pivot support body 53: pivot shaft
54: pivot guide member 56: pivot drive means
57: Pivot control unit 58: Monitoring means
60: driving force distribution member 61: subordinate gear
62: drive shaft 63: support bearing
65: Support frame
70: Link guide member
90: driving force input section 91: input shaft
92: drive gear
100: reciprocating pump B: base member

Claims (6)

A reciprocating pump system (100) for transferring fluid in connection with an inlet pipe (1) and an outlet pipe (2)
A pump body 10 provided with a cylinder 11 having an inlet 13 and an outlet 14 and a piston 12 reciprocating linearly in the cylinder 11; And
An inflow check valve 30 provided at the inlet 13 side of the pump body 10 to prevent flow of the fluid flowing from the inflow pipe 1 but prevent backflow;
A discharge check valve (40) provided at the discharge port (14) side of the pump body (10) to allow flow of the fluid discharged to the discharge pipe (2) but prevent back flow;
A driving force transmitting portion 20 for transmitting a driving force transmitted from an external driving source to the piston 12 in a pivoting manner so that the piston 12 linearly reciprocates within the cylinder 11;
And a pivot adjusting means (50) provided with a pivot shaft (53) for providing a pivot position with respect to the driving force transmitting portion (20) and variably controlling the position of the pivot shaft (53)
The driving force transmitting portion 20 includes a first link 21 having one end rotatably connected to the piston 12; And a second link (22) rotating and reciprocating in a predetermined angular range by a driving force transmitted from an external driving source; The pivot shaft 53 is rotatably connected to the other end of the first link 21 and the end of the second link 22, And a pivotal link (23) provided with a pivotal link (25)
The pivot adjusting means (50) includes a pivot guide member (54) provided on a support member (51); And a pivot body 52 provided with the pivot shaft 53 at one side thereof and movably provided along the pivot guide member 54,
And the position of the pivot shaft (53) can be moved within the slot (25) by adjusting the position of the pivot body (52).
The method according to claim 1, wherein the pivot adjusting means (50) calculates a target position of the pivot shaft (53) by referring to the sensing signal of the monitoring means (58) and moves the pivot body (57) for providing a drive signal to the pivot drive means (56), wherein the sensing signal of the monitoring means (58) is indicative of the viscosity of the transport fluid and the transport flow rate of the pump system, And the strain of the driving force transmitting portion 20. The variable fluid feeding pump system according to claim 1, delete The pump system according to claim 1, wherein the pump system includes a drive shaft (62) rotatably fixed to a support frame (65) via a support bearing (63) And the second link (22) of the pump (20) is fixedly coupled to supply external driving energy to at least one pump main body (10).
5. The pump system according to claim 4,
The second link 22 is provided on the drive shaft 62 so that each pair of the second link 22 and the second link 22 has opposite phases. And an inlet pipe (1) for connecting the inlet pipes (13) of the bodies (10) so that the pair of pump bodies (10) share the inflow paths of the fluids by connecting one inlet pipe And the branch portion of the inflow pipe (1) is formed of a horizontal pipe.
The variable pump according to claim 1, characterized in that the pump system further comprises a linkage member (70) so that each link of the drive force transmission portion (20) performs a stable link motion in a plane Pump system.

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