WO2021020755A1

WO2021020755A1 - Hose pump

Info

Publication number: WO2021020755A1
Application number: PCT/KR2020/008791
Authority: WO
Inventors: 이수연; 이정훈
Original assignee: 주식회사 퍼시오
Priority date: 2019-07-30
Filing date: 2020-07-06
Publication date: 2021-02-04
Also published as: KR102100225B1

Abstract

Disclosed is a hose pump comprising: a casing in which a hose passing through the inside of an upper region is disposed, and which has an openable upper cover provided above the hose; a first cam plate and a second cam plate which respectively have a cam groove that includes a first section in which the hose is not pressed and a second section in which the hose is pressed, and which are coupled to both sides, of the inner portion of the casing, that are positioned in a direction orthogonal to the arrangement direction of the hose, so that the cam grooves face each other; a first driving wheel and a second driving wheel of which the center shafts are respectively coupled to a driving shaft between the first cam plate and the second cam plate inside the casing, and which include slots in a form of radiating outward at a predetermined distance from the driving shaft; and pressing rollers which are positioned between the first and second driving wheels, and which each include a roller shaft slidably coupled to the slot of the first driving wheel and the slot of the second driving wheel corresponding to same, cam bearings formed on both ends of the roller shaft and slidably coupled to each of the cam groove of the first cam plate and the cam groove of the second cam plate, and a roller coupled to the roller shaft.

Description

Hose pump

The present invention relates to a hose pump, by arranging the hose in a straight line to compress the hose, thereby reducing the deformation of the hose and prolonging the life, the replacement and cleaning of the hose can be facilitated, and the compression speed of the pressing roller is It relates to a hose pump capable of reducing the pulsation generated when the compression of the hose is released by making it variable.

A typical hose pump is a metering pump that pumps by using a restoring force that is restored to its original state after compression or change of a hose in the housing. A rotor that rotates by the rotational force of a motor is provided inside the housing, and shoes or rollers are provided at both ends of the rotor Pumping is achieved by repeating the operation of the shoe or roller mounted at the end of the rotor compressing the hose in the housing and pushing the contents of the hose in the rotation direction of the rotor while the rotor is mounted and rotated by the motor.

However, in such a conventional hose pump, the hose is located in a U shape inside the casing, so when replacing the hose, remove the flange connection of the hose, open the side of the casing, adjust the shoe, and rotate the hose pump slowly to hold the hose. There is a problem in that it takes a lot of time and effort in terms of maintenance because it must be removed, and a cumbersome process such as connecting the flange after pushing the hose from the inner end while rotating the pump during assembly is required.

In addition, there is a problem in that the hose is continuously crimped in a U-shaped deformed state, so that the stress received by the hose is large, and the fatigue of the hose is greatly increased due to repeated compression in only one direction of the hose.

In addition, there is a problem in that the pulsation occurs largely because a section without pumping occurs due to the compression roller moving at a constant speed.

An object of the present invention is to solve all of the above-described problems.

In addition, another object of the present invention is to arrange the hose in a straight shape and to provide an upper cover so that the replacement of the hose can be easily performed.

In addition, another object of the present invention is to solve the problem of shortening the life of the hose by continuously compressing a portion of the hose by allowing the hose to rotate easily by a certain angle after opening the upper cover. .

In addition, another object of the present invention is to extend the life of the hose by removing the deformation caused by the U-shaped curvature by compressing the hose in a straight line.

In addition, another object of the present invention is to reduce the pulsation generated when the compression roller is released from the hose by allowing the compression roller to perform a constant acceleration/deceleration movement.

A characteristic configuration of the present invention for achieving the object of the present invention as described above and realizing the characteristic effects of the present invention described later is as follows.

According to one aspect of the present invention, at least one hose passing through the interior of the upper region is disposed, the casing having an openable upper cover on the upper portion of the hose; Cam grooves including a first section that is a section in which the hose is not compressed and a second section that is a section in which the hose is compressed are formed, respectively, and are located on both inner sides of the casing in a direction orthogonal to the arrangement direction of the hose. A first cam plate and a second cam plate coupled to face the cam grooves; A first drive wheel and a first drive wheel including at least one slot in a shape wherein a central shaft is respectively coupled to a drive shaft in the casing between the first cam plate and the second cam plate, and radiates to the outside by being spaced apart from the drive shaft by a predetermined distance. 2 drive wheel; And a roller shaft located between the first driving wheel and the second driving wheel, and slidably coupled to the slot of the first driving wheel and the slot of the second driving wheel corresponding thereto, at both ends of the roller shaft. A hose pump comprising: a cam bearing slidably coupled to a cam groove of the first cam plate and a cam groove of the second cam plate, and at least one pressing roller including a roller coupled to the roller shaft is disclosed. .

As an example, a pressing plate formed between the upper cover and the hose, formed under the upper cover to support the hose, and providing a pressing force to the hose by a spring installed between the hose and the upper cover A hose pump is disclosed, characterized in that it further comprises.

As an example, one end of the pressing plate is hinged to a first fixing spacer formed on a lower surface of one end of the upper cover, and the other end of the pressing plate is a second fixing formed on the lower surface of the other end of the upper cover It is pin-coupled to the spacer, one end of the spring is coupled to an upper surface of the other end of the compression plate, and the other end of the spring is formed in a hole through the upper cover, and is coupled to a position-moving adjustment lever. A hose pump is disclosed, characterized in that.

As an example, a hose pump is disclosed, wherein the pressing roller performs a rotational motion in the first section in response to the rotation of the drive shaft, and performs a linear motion in the second section, which is an area bonded to the hose.

As an example, a hose pump is disclosed, wherein the second section is formed in at least one of a straight type, a convex type, and a concave type.

As an example, the hose includes a first branch hose to an nth branch hose, and the pressing roller includes a first pressing roller corresponding to the first branch hose to an nth pressing roller corresponding to the nth branch hose in sequence. Doedoe formed as, a hose pump is disclosed, characterized in that the set of the first pressing roller to the n-th pressing roller is formed in k multiples.

As an example, by the rotation of the drive shaft, the compression rollers slide along the slot toward the inside of the drive wheel in the state of compressing the hose in the second section, and perform a linear motion along the cam groove in the hose. It is characterized in that the transport material is compressed and discharged in the linear motion direction, and in the first section, while being spaced apart from the hose, it slides along the slot to the outside of the drive wheel, and performs rotational motion along the cam groove. The hose pump is started.

As an example, the first to the n-th compression roller sequentially compresses the first branch hose to the nth branch hose by rotation of the drive shaft to transfer the first branch hose to the nth branch hose Disclosed is a hose pump, characterized in that the pulsation generated when the conveyed material is discharged is minimized by sequentially discharging the material through one discharge port.

As an example, a hose pump is disclosed, characterized in that a hose fixing device for fixing the hose and a fixed adjustment device for adjusting the hose is formed on both sides of the casing through which the hose passes.

According to the present invention, the following effects are obtained.

The present invention has the effect of allowing easy replacement of the hose by arranging the hose in a straight line and having an upper cover.

In addition, the present invention has the effect of solving the problem of shortening the life of the hose by continuously pressing a portion of the hose by allowing the direction of the hose to be easily rotated by a certain angle after opening the upper cover.

In addition, the present invention has the effect of extending the life of the hose by removing the deformation caused by the U-shaped curvature by pressing the hose in a straight line.

In addition, the present invention has the effect of reducing the pulsation generated when the compression roller is released from the hose by allowing the compression roller to perform a constant acceleration/deceleration movement.

1 is a cross-sectional view of a hose pump according to an embodiment of the present invention.

2 is a side view of a hose pump according to an embodiment of the present invention.

3 schematically shows a cam plate, a drive wheel, and a pressing roller of a hose pump according to an embodiment of the present invention.

Figure 4 schematically shows the configuration of a pressing roller according to an embodiment of the present invention.

5 schematically shows the shape of a cam groove formed in a cam plate of a hose pump according to an embodiment of the present invention.

6 is a view for explaining the configuration of a drive wheel and a pressing roller when a plurality of hoses are arranged inside the hose pump according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described later refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment.

In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. In the drawings, like reference numerals refer to the same or similar functions over several aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those of ordinary skill in the art to easily implement the present invention.

1 is a cross-sectional view of a hose pump according to an embodiment of the present invention, Figure 2 is a side view of the hose pump according to an embodiment of the present invention.

1 and 2, the hose pump according to the present invention includes a casing 110, a first cam plate 120, a second cam plate 130, a drive shaft 140, a first drive wheel 150a, and a second It may include a driving wheel 150b and at least one

pressing roller

160a, 160b, 160c, 160d.

First, at least one hose 200 passing through the inside may be disposed in an upper area of the casing 110 supporting the entire hose pump.

Specifically, referring to FIG. 2, the hose 200 may be disposed while penetrating the interior of the upper region of the casing 110 in a straight line.

In addition, the casing 110 may have a shape provided with an openable upper cover 170 above the hose 200. Here, a coupling device for allowing the upper cover 170 to be coupled to or released from the casing 110 may be included.

In addition,

hose fixtures

211a and 211b for fixing the hose 200 and fixed

adjustment devices

210a and 210b for adjusting the hose 200 may be formed on both sides of the casing 110 through which the hose 200 passes.

At this time, between the upper cover 170 and the hose 200, the spring 183 is formed under the upper cover 170 to support the hose 200, and is installed between the hose 200 and the upper cover 170 By this, a compression plate 190 may be formed that provides a compression force to the hose 200.

Specifically, referring to FIG. 2, the pressing plate 190 is hinged to a first fixed spacer 180b formed on a lower surface of one end of the upper cover 170 at one end of the pressing plate 190, The other end of the pressing plate 190 may be pin-coupled to the second fixing spacer 180a formed on the lower surface of the other end of the upper cover 170.

In addition, the compression plate 190 may have one end of the spring 183 coupled to the upper surface of the other end of the compression plate 190. Here, the other end of the spring 183 may be coupled to an adjustment lever 182 formed in a hole through the upper cover 170 and moved in position.

Therefore, the tension of the spring 183 can be adjusted through the adjustment lever 182, and accordingly, the maximum pressure of the hose pump can be set by adjusting the compression force provided to the hose 200 through the pressing plate 190. It becomes possible to prevent overpressure. In addition, by releasing the fixing of the upper cover 170, the pressing force applied to the hose 200 is removed, so that the pressing direction of the hose 200 can be easily changed or the hose 200 can be replaced.

Next, the first cam plate 120 and the second cam plate 130 may be coupled to face both inner sides of the casing 110 positioned in a direction orthogonal to the arrangement direction of the hose 200. In addition, the first cam plate 120 and the second cam plate 130 are coupled so as to be opposed to the inner sides of the casing 110, respectively, but, unlike this, the inner sides of the casing 110 are respectively connected to the first cam plate 120 and the second cam plate. 2 It can also be formed of the cam plate 130.

At this time, referring to FIG. 3, each of the first cam plate 120 and the second cam plate 130 includes a first section, which is a section in which the hose 200 is not compressed, and a second section, which is a section in which the hose 200 is compressed. Included cam groove 131 may be formed, and each cam groove 131 may be coupled to face each other on both sides of the casing 110. In this case, the first section may be a section in which pumping is not applied to the hose 200, and the second section may be a section in which pumping is performed on the hose 200.

In addition, a drive shaft 140 may be formed in the casing 100 between the first cam plate 120 and the second cam plate 130. Here, the drive shaft 140 may be rotatably coupled to a central region of each of the first cam plate 120 and the second cam plate 130.

In addition, the drive shaft 140 may have one end formed to rotate through one of the first cam plate 120 and the second cam plate 130, and the penetrating end is connected to the motor drive shaft of the drive motor 100. It may rotate according to the driving of the driving motor 100.

In this case, the driving shaft 140 may be connected to the motor driving shaft of the driving motor 100 by the coupling 101 to receive kinetic energy of the driving motor 100. In addition, in addition to the coupling 101, general coupling devices may be used to connect the drive shaft 140 and the motor drive shaft. In addition, a motor drive shaft may be used as the drive shaft 140 without using a separate coupling device.

Next, each of the first driving wheel 150a and the second driving wheel 150b has a central axis coupled to the driving shaft 140 within the casing 110 between the first cam plate 120 and the second cam plate 130. Can be.

In this case, referring to FIG. 3, each of the first driving wheel 150a and the second driving wheel 150b includes at least one slot 151 of a shape that is spaced apart from the driving shaft 140 and radiates to the outside. It can be a form. At this time, each of the slots 151 may be formed at equal intervals, and the number of slots 151 may correspond to the number of pressing rollers 160 to be formed in the hose pump.

Next, the pressing roller 160 may be positioned between the first driving wheel 150a and the second driving wheel 150b.

Specifically, referring to FIGS. 3 and 4, the pressing roller 160 may include

cam bearings

161a and 161b,

sliders

162a and 162b, rollers 163 and roller shafts 164.

At this time, the

cam bearings

161a and 161b may be formed at both ends of the roller shaft 164 of the pressing roller 160, and each of the

cam bearings

161a and 161b is a cam groove of the first cam plate 120 and a second cam plate. It may be slidably coupled to the cam groove 131 of (130).

In addition, the roller 163 may be coupled to the center of the roller shaft 164.

In addition, the roller shaft 164 may be slidably coupled to the slot 151 of the first driving wheel 150a and the slot 151 of the second driving wheel 150b corresponding thereto. In this case,

sliders

162a and 162b may be formed on the roller shaft 164 coupled to the slot 151, but the present invention is not limited thereto.

The compression roller 160 of the hose pump according to an embodiment of the present invention configured as described above performs a rotational motion in the first section of in response to the rotation of the drive shaft 140, and is a second area bonded to the hose 200. You can do linear motion in the section.

Specifically, when the drive shaft 140 rotates according to the drive of the drive motor 100, the compression roller 160 is separated from the hose 200 in the first section by the rotation of the drive shaft 140 It is slid along the slot 151 to the outside of 150, and can rotate along the cam groove 131. In this case, the shape of the first section may be a single circle having a single central radius, but is not limited thereto and may be a combination of a plurality of circles having a plurality of central radii.

In addition, by the rotation of the drive shaft 140, the pressing roller 160 slides along the slot 151 into the driving wheel 150 in a state where the hose 200 is compressed in the second section, and the cam groove 131 ), you can do a linear motion. That is, in the second section, the hose 200 may be compressed and pumped while the movement center of the pressing roller 160 is off the center of the driving wheel.

And, in the second section, the pressing roller 160 can perform a constant acceleration/deceleration movement, thereby preventing pulsation. That is, in the second section, since the angular speed of the crimping roller 160 according to the rotation of the driving wheel is the same, the moving speed gradually decreases from the position where the crimping starts with the hose 200, and after passing through the center area, the moving speed May increase.

By changing the shape of the first section and the second section as described above, the speed at which the pressing roller 160 moves by the rotation of the drive shaft 140 may be changed.

In this case, referring to FIG. 5, the second section may be formed in at least one of a straight line, a convex shape, and a concave shape.

Accordingly, the length of the compression section through which the compression roller 160 compresses the hose 200 may be different according to the shape of the formed second section. That is, it is possible to adjust the moving speed of the pressing roller 160 in the second section by using the shape of the second section of the cam groove.

Meanwhile, the hose 200 of the hose pump according to an embodiment of the present invention may include a first branch hose to an nth branch hose. In this case, the first branch hose to the nth branch hose may be formed between one suction port through which the transport material is sucked and one discharge port through which the transport material is discharged.

In this case, a first pressing roller corresponding to the first branch hose to an nth pressing roller corresponding to the nth branch hose may be sequentially formed. Here, the sequential means that the order of the pressing rollers adhered to the hose 200 according to the rotation of the driving wheel 150 is the first pressing roller, the second pressing roller, the third pressing roller, ..., the n-th pressing roller It may be an order, but is not limited thereto.

In addition, the first pressing roller to the nth pressing roller may be formed with k multiples of pressing rollers by using the first pressing roller to the nth pressing roller as a set. Here, k will be a positive integer.

For example, referring to Figure 6, when the hose 200 of the hose pump is composed of a first branch hose (200a) and a second branch hose (200b), the pressing roller 160 is the first branch hose (200a) ) Corresponding to the first pressing roller 160a and the second pressing roller 160a′ corresponding to the second branch hose 200b may be sequentially formed. At this time, the first pressing roller 160a and the second pressing roller 160a′ as a set may be used to form eight pressing rollers 160 that are a multiple of four.

At this time, the pressing rollers slide along the slot 151 into the driving wheel 150 in a state in which the corresponding hoses are compressed in the second section by the rotation of the drive shaft 140, and linearly along the cam groove 131 By exercising, the transport material in the hose can be compressed and discharged in a linear motion direction.

In addition, the pressing rollers slide along the slot 151 to the outside of the drive wheel 150 in a state spaced apart from the corresponding hose in the first section by the rotation of the drive shaft 140, and rotate along the cam groove 131 You can exercise.

In addition, the first compression roller to the n-th compression roller is a first branch by sequentially pressing the first branch hose to the n-th branch hose corresponding to each of the first compression roller to the n-th compression roller by rotation of the drive shaft 140 By sequentially discharging the conveyed material in the hose to the n-th branch hose through one discharge port, the pulsation generated when the conveyed material is discharged may be minimized.

In the above, the present invention has been described by specific matters such as specific elements and limited embodiments and drawings, but this is provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Anyone with ordinary knowledge in the technical field to which the present invention pertains can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention is limited to the above-described embodiments and should not be defined, and all modifications that are equally or equivalent to the claims as well as the claims to be described later fall within the scope of the spirit of the present invention. I would say.

[Explanation of code]

100: drive motor

101: coupling

110: casing

120: first cam plate

130: second cam plate

131: cam groove

140: drive shaft

150a: first drive wheel

150b: second drive wheel

151: slot

160a, 160b, 160a': crimping roller

161a, 161b: cam bearing

162a, 162b: slider

163: roller

164: roller shaft

170: top cover

180a: second fixed spacer

180b: first fixed spacer

182: adjustment lever

183: spring

190: pressing plate

200: hose

210a, 210b: fixed adjustment device

211a, 211b: hose fixture

Claims

A casing having at least one hose passing through the interior of the upper region and having an openable upper cover on the upper portion of the hose;

Cam grooves including a first section that is a section in which the hose is not compressed and a second section that is a section in which the hose is compressed are formed, respectively, and are located on both inner sides of the casing in a direction orthogonal to the arrangement direction of the hose. A first cam plate and a second cam plate coupled to face the cam grooves;

A first drive wheel and a first drive wheel including at least one slot in a shape wherein a central shaft is respectively coupled to a drive shaft in the casing between the first cam plate and the second cam plate, and radiates to the outside by being spaced apart from the drive shaft by a predetermined distance. 2 drive wheel; And

A roller shaft located between the first driving wheel and the second driving wheel, slidably coupled to the slot of the first driving wheel and the slot of the second driving wheel corresponding thereto, formed at both ends of the roller shaft And at least one pressing roller each including a cam bearing slidably coupled to a cam groove of the first cam plate and a cam groove of the second cam plate, and a roller coupled to the roller shaft;

Hose pump comprising a.
The method of claim 1,

It is formed between the upper cover and the hose, is formed under the upper cover to support the hose, further comprising a compression plate for providing a pressing force to the hose by a spring installed between the hose and the upper cover Hose pump, characterized in that to.
The method of claim 2,

One end of the pressing plate is hinged to a first fixed spacer formed on a lower surface of one end of the upper cover, and the other end of the pressing plate is pinned to a second fixed spacer formed on a lower surface of the other end of the upper cover. It is coupled, and one end of the spring is coupled to the upper surface of the other end of the compression plate, and the other end of the spring is coupled to an adjustment lever that is positioned in a hole penetrating through the upper cover. Hose pump.
The method of claim 1,

The compression roller is a hose pump, characterized in that the rotational motion in the first section in response to the rotation of the drive shaft, and a linear motion in the second section, which is an area bonded to the hose.
The method of claim 4,

The second section is a hose pump, characterized in that formed in at least one of a straight, convex, and concave shape.
The method of claim 1,

The hose includes a first branch hose to an nth branch hose,

The compression roller is sequentially formed with a first compression roller corresponding to the first branch hose to an n-th compression roller corresponding to the n-th branch hose, and the set of the first compression roller to the n-th compression roller is k Hose pump, characterized in that formed by a drainage dog.
The method of claim 6,

By the rotation of the drive shaft, the compression rollers slide along the slot in the drive wheel in a state where the hose is compressed in the second section, and move linearly along the cam groove to transfer the transport material in the hose. A hose pump, characterized in that it is compressed and discharged in the linear motion direction, and in the first section, while being spaced apart from the hose, sliding along the slot to the outside of the drive wheel, and performing rotational motion along the cam groove.
The method of claim 7,

The first to n-th compression rollers sequentially compress the first branch hose to the nth branch hose by rotation of the drive shaft, so that one transport material in the first branch hose to the nth branch hose is Hose pump, characterized in that to minimize the pulsation generated while the transport material is discharged by sequentially discharged to the discharge port of.
The method of claim 1,

A hose pump, characterized in that a hose fixture for fixing the hose and a fixed adjustment device for adjusting the hose is formed on both sides of the casing through which the hose passes.