KR20230061020A - A gear pump capable of dispensing a fine flow - Google Patents

Abstract

The present invention relates to a gear pump capable of discharging a fine flow rate. More particularly, the present invention relates to a gear pump that is capable of discharging a fixed amount of fluid flowing in from the outside by controlling a fine flow rate, and is capable of discharging a fine flow rate with ease of assembly so that it can be applied to various fields.

Description

Gear pump capable of dispensing a fine flow {A gear pump capable of dispensing a fine flow}

The present invention relates to a gear pump capable of micro-flow discharge, and more particularly, to a gear pump capable of regulating and discharging fluid introduced from the outside to a minute flow rate and discharging it in a fixed amount, and micro-flow discharge that is easy to assemble so that it can be applied to various fields. This relates to possible gear pumps.

In general, gear pumps have internal gear teeth and external gear teeth, and are used in a wide range of technical fields to transfer fluids such as lubricating fluid or diesel fuel by transmitting hydraulic pressure in a certain pressure range.

For example, gear pumps are widely used in fields such as automobiles, food, and electronics, and external gear pumps are mainly used in fields such as cosmetics, medicine, food, coatings, and textiles.

A conventional gear pump is a pump assembly formed so that a pair of gears mounted on a drive shaft are rotatably accommodated in a case, and is suitable for application in small-volume production areas. However, when applied in areas requiring mass production, a plurality of gear pumps are used. In addition to the purchase and installation costs, space for installing a plurality of gear pumps is required, and there are many issues to be considered, such as maintenance costs, resulting in inefficiency.

In order to improve this, a gear pump equipped with a plurality of pump assemblies in one housing has recently been manufactured, but this is because it requires fastening members to connect each pump assembly and is formed to be driven independently by each shaft. And processing is difficult as well as costly.

In addition, when applied in various fields, since different numbers of pump assemblies are required according to the purpose of use, it is difficult to mount pump assemblies having a different number in a housing manufactured to fit a predetermined number.

Therefore, it is necessary to develop a gear pump that can be assembled according to the purpose of use due to easy assembly, can be applied to various fields, and can discharge a small flow rate at a minimum cost.

Republic of Korea Patent Registration No. 10-1043294 (Announced on June 22, 2011)

The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to adjust the flow rate of the fluid flowing in from the outside and discharge it in a fixed amount, and it is easy to assemble each component to suit the purpose of use or application field. An object of the present invention is to provide a gear pump that can be assembled and can be applied to various fields and can discharge micro-flow.

In order to achieve the above object, the present invention provides a drive shaft and a driven shaft inserted through and rotatably supporting each shaft groove, a transfer path for transporting fluid flowing through from one side to the other side, and a discharge path for discharging the fluid to the outside. A central block including a row and a plurality of node blocks arranged on both sides of the central block; It is disposed between the central block and the plurality of node blocks, and has an accommodation groove open on both sides in which a driving gear and a driven gear are accommodated so as to engage and rotate. A gear plate having an inlet groove formed at a position corresponding to the transfer path and a discharge groove formed at a position corresponding to the discharge path to discharge the introduced fluid to the discharge path of the central block or node block; and a first end block and a second end block for closing the open side of the node block or gear plate disposed at both ends, wherein the drive shaft and the driven shaft are inserted through the central block, the node block, and the gear plate. and receives power from a motor to simultaneously rotate the plurality of drive gears and driven gears accommodated in each gear plate.

In a preferred embodiment, the central block is further formed with an inlet passage for receiving fluid from the outside.

In a preferred embodiment, the center block, node block, gear plate and end blocks are press-fitted by means of bolts and nuts, and bolts for fastening may be inserted through the center block, node block, gear plate and end blocks. A plurality of bolt fastening holes are formed.

In a preferred embodiment, the center block, the node block, the gear plate and the end block are plane-processed for watertightness on the surfaces adjacent to each other.

The present invention has the following excellent effects.

According to the gear pump capable of micro-flow discharge of the present invention, processing can be minimized because a thin gear plate can be processed to accommodate a pair of gears and only a simple shaft groove can be processed in a block for fixing support, The thickness of the gear plate can also be manufactured to fit a pair of gears made with a thin thickness, so it is easy to design and manufacture to suit various fields, and the thickness can be minimized, which has the advantage of being able to discharge a small amount of flow in a fixed amount.

In addition, according to the gear pump capable of micro-flow discharge of the present invention, a support block, a pair of gears, and a gear plate can be assembled in various numbers according to the purpose of use or application field, and can be press-coupled by bolts and nuts. It is not only easy to assemble, but also applicable to various fields, and has the advantage of reducing manufacturing and maintenance costs.

In addition, according to the gear pump capable of discharging a small flow rate of the present invention, when a support block, a pair of gears, and a gear plate are coupled, plane processing is performed on surfaces adjacent to each other, thereby improving watertightness.

1 is a side view for explaining a gear pump capable of discharging a fine flow rate according to an embodiment of the present invention;
2 is a perspective view for explaining a gear pump capable of discharging a fine flow rate according to an embodiment of the present invention;
3 is a perspective view for explaining a central block, a node block, a gear and a gear plate according to an embodiment of the present invention.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible, but in certain cases, there are terms arbitrarily selected by the applicant. Therefore, its meaning should be understood.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein and may be embodied in other forms, and like reference numerals denote like elements throughout the specification.

Figure 1 is a side view for explaining a gear pump capable of discharging a fine flow rate according to an embodiment of the present invention, Figure 2 is a perspective view for explaining a gear pump capable of discharging a fine flow rate according to an embodiment of the present invention, Figure 3 is a perspective view for explaining a central block, a node block, a gear and a gear plate according to an embodiment of the present invention.

1 to 3, the gear pump 100 capable of discharging a fine flow rate of the present invention is a gear pump capable of quantitatively discharging fluid introduced from the outside at a fine flow rate, and includes a central block 110 and the central block A plurality of node blocks 120 arranged consecutively on both sides of 110, a plurality of gear plates 130 arranged on one side of the central block 110 and the plurality of node blocks 120, each gear plate 130 ) A pair of gears 140 accommodated in the central block 110, the plurality of node blocks 120, and a pair of gears inserted through the gear plate 130 and accommodated in each gear plate 130 It includes a pair of shafts 150 that simultaneously rotate 140 and a closing block 160 that closes the open surface of the node block 120 or the gear plate 130 disposed at both ends.

The central block 110 and the plurality of node blocks 120 provide a fluid path capable of transporting fluid introduced from the outside to one side or the other side and discharging the fluid introduced from one side downward. As a structure for fixing and supporting the shaft 150, transfer paths 111 and 121, discharge paths 112 and 122, discharge nozzles 113 and 123, drive shaft grooves 114 and 124, and driven shaft grooves 115 and 125 are formed.

In addition, the central block 110 and the plurality of node blocks 120 are formed in a rectangular parallelepiped shape having a predetermined thickness, but the shape is not limited and may be formed in various three-dimensional shapes having a predetermined thickness.

The transfer paths 111 and 121 are formed on the upper side of the central block 110 and the plurality of node blocks 120, and the central block 110 and the plurality of node blocks 120 allow fluid introduced from the outside to be transported. ) is formed through from one side to the other side

In detail, when the transfer paths 111 and 121 connect the central block 110 and the plurality of node blocks 120 in series, the transfer paths 111 and 121 are connected to each other on the same horizontal line. and formed through the plurality of node blocks 120.

The discharge passages 112 and 122 are formed below the central block 110 and the plurality of node blocks 120, respectively, and in detail, the fluid introduced from one side of the central block 110 and each node block 120 It is formed through so that it can be discharged downwardly, respectively.

The discharge nozzles 113 and 123 may be formed on lower surfaces of the central block 110 and the plurality of node blocks 120, respectively. Specifically, the discharge nozzles 113 and 123 are provided through the discharge passages 112 and 122. They are formed at positions corresponding to the discharge passages 112 and 122 so that the discharged fluid is discharged to the outside.

The driving shaft grooves 114 and 124 and the driven shaft grooves 115 and 125 are formed through the central block 110 and each node block 120 from one side to the other side, and in detail, the pair of shafts 150 are inserted. It is formed through to be rotatably supported.

To this end, it is preferable that the drive shaft grooves 114 and 124 and the driven shaft grooves 115 and 125 have sizes corresponding to the respective thicknesses of the pair of shafts 130 .

In addition, the drive shaft grooves 114 and 124 and the driven shaft grooves 115 and 125 can rotate and support the pair of shafts 150 at a constant position when the pair of shafts 150 are inserted through them. Bearings are included.

Meanwhile, compared to the node block 120, the central block 110 is further formed with an inflow passage 116 and an inlet nozzle 117 through which fluid can be introduced from the outside.

The inflow passage 116 is formed through the passage so that the upper end of the central block 110 and the conveyance passage 111 are connected in order to introduce fluid introduced from the outside into the conveyance passage 111 .

The inlet nozzle 117 is a structure for introducing fluid into the inlet passage 116 and is formed on the upper side of the central block 110 and is formed at a position corresponding to the inflow passage 116 .

The gear plate 130 is disposed on each side of the central block 110 and the plurality of node blocks 120, and has an accommodation groove 131 capable of accommodating the pair of gears 140 to be rotatably engaged with each other is formed

In addition, the gear plate 130 has a number corresponding to the central block 110 and the plurality of node blocks 120 .

In addition, the gear plate 130 is preferably formed to a thickness corresponding to the thickness of the pair of gears 140 so that the pair of gears 140 can be accommodated therein.

The receiving groove 131 has a size corresponding to that of the pair of gears 140 and is formed such that both sides are open. and a discharge groove 131-2 capable of discharging the fluid whose quantity is regulated by the pair of gears 140 to the discharge passages 112 and 122 is formed.

The inflow groove 131-1 is formed at a position corresponding to the transfer paths 111 and 121 so that fluid can be introduced from the transfer paths 111 and 121.

The discharge groove 131-2 is formed at a position corresponding to the discharge passages 112 and 122 so that the fluid regulated by the pair of gears 140 can be discharged to the discharge passages 112 and 122.

That is, in the gear pump 100 of the present invention, the fluid introduced from the outside through the inlet 116 is introduced into the inlet groove 131-1 through the transfer paths 111 and 121, and the pair of gears ( 140), and the pair of gears 140 adjusts the minute flow rate of the introduced fluid, and discharges it to the discharge paths 112 and 122 through the discharge groove 131-2, and the discharge nozzles 113 and 123 Through this, a minute amount of flow can be discharged in a fixed amount to the outside.

The pair of gears 140 are arranged in the gear plate 130 to be rotatably engaged with each other, and include a driving gear 141 and a driven gear 142.

In addition, the pair of gears 140 are composed of a number corresponding to the number of gear plates 130 .

In addition, the pair of gears 140 are formed to a thickness that can be accommodated in the gear plate 130, and are designed and manufactured to adjust the discharged flow rate according to the purpose of use.

The pair of shafts 150 receive power from a motor and perform a function of rotating the pair of gears 140 meshed with each other, and are composed of a driving shaft 121 and a driven shaft 122.

In detail, the pair of shafts 150 are inserted through the plurality of gear plates 130 to simultaneously rotate the pair of gears 140 accommodated in each gear plate 130 .

One side of the driving shaft 151 is connected to a motor and rotates by receiving power from the motor, and the driven shaft 152 rotates by receiving rotational force of the driving shaft 151 .

In addition, the driving shaft 151 and the driven shaft 152 are inserted through the center of the corresponding driving gear 141 and driven gear 142, respectively.

In addition, the thickness of the drive shaft 151 and the driven shaft 152 is formed to a thickness corresponding to the size of the through hole formed in the pair of gears 140 so that they can be mounted on the pair of gears 140, respectively. it is desirable to be

The closing block 160 closes the open side of the node block 120 and the gear plate 130 disposed at both ends, and includes a first closing block 161 and a second closing block 162.

In addition, the finishing block 160 has the same three-dimensional shape as the central block 110 and the node block 120, and may have various thicknesses.

The first closing block 161 closes the open surface of the node block 120 disposed at one end, and a shaft hole is formed so that the driving shaft 151 is inserted therethrough, and the driven shaft 152 is rotatably A shaft fixing groove is formed so as to be fixedly supported.

The second closing block 162 closes the open surface of the gear plate 130 disposed at the other end, and a pair of shaft fixing grooves are formed so that the pair of shafts 150 are rotatably fixed and supported. .

Here, bearings capable of rotatably and fixedly supporting the drive shaft 151 and the driven shaft 152 are further included in the shaft hole and each shaft fixing groove.

On the other hand, in the gear pump 100 of the present invention having this configuration, the central block 110, the plurality of node blocks 120, the plurality of gear plates 130 and the end block 160 are bolts and nuts , and a plurality of bolts penetrated from one side to the other so that bolts for fastening can be inserted through the center block 110, the plurality of node blocks 120, and the plurality of gear plates 130. A fastening groove (B) is formed.

It is preferable that the plurality of bolt fastening grooves (B) are formed at equal intervals so that each component is coupled by applying the same pressure when press-fitting.

In addition, each adjacent surface of the central block 110, the plurality of node blocks 120, the plurality of gear plates 130, and the end block 160 is plane-processed for watertightness.

That is, the present invention is assembled by inserting the pair of shafts 150 through the central block 110, the plurality of node blocks 120, and the plurality of gear plates 130, and is press-fitted by the bolts and nuts. do.

Here, the plurality of node blocks 120 may be arranged in the same number on both sides of the central block 110 for uniform distribution of fluid, and depending on the purpose of use, the node block 120 may be subtracted or added to can be assembled

Meanwhile, the pair of shafts 150 may be formed with a length corresponding to the number of assembled node blocks 120 and gear plates 130 .

Therefore, in the gear pump 100 of the present invention, the pair of gears 140 are accommodated in the gear plate 130 instead of the central block 110 and the plurality of node blocks 120 for fixed support. There is an advantage in that the thickness of the pair of gears 140 can be designed so as to reduce manufacturing costs by processing possible grooves and to adjust the fine flow discharge according to the purpose of use.

In addition, according to the present invention, the central block 110, the plurality of node blocks 120, and the plurality of gear plates 130 can be formed into a plurality of pieces according to the purpose of use and pressed together by bolts and nuts. It is not only easy to assemble, but also has the advantage of being applicable to various fields.

As reviewed above, the present invention has been shown and described with preferred embodiments, but is not limited to the above embodiments, and to those skilled in the art within the scope of not departing from the spirit of the present invention Various changes and modifications will be possible.

100: gear pump 110: central block
111,121: transfer path 112,122: discharge path
113,123: discharge nozzle 114,124: drive shaft groove
115,125: follower shaft groove 116: inlet
117: inlet nozzle 120: node block
130: gear plate 131: receiving groove
131-1: inlet groove 131-2: discharge groove
140: a pair of gears 141: drive gear
142: driven gear 150: a pair of shafts `
151: drive shaft 152: driven shaft
160: finishing block 161: first finishing block
162: second finishing block B: bolt fastening groove

Claims (4)

A central block including a shaft groove for supporting a driving shaft and a driven shaft to be rotatably inserted therethrough, a transfer path for transporting fluid flowing through from one side to the other side, and a discharge path for discharging the fluid to the outside, and the central block A plurality of node blocks disposed on both sides based on;
It is disposed between the central block and the plurality of node blocks, and has an accommodation groove open on both sides in which a driving gear and a driven gear are accommodated so as to engage and rotate. A gear plate having an inlet groove formed at a position corresponding to the transfer path and a discharge groove formed at a position corresponding to the discharge path to discharge the introduced fluid to the discharge path of the central block or node block; and
Including; a first closing block and a second closing block for closing the open side of the node block or gear plate disposed at both ends,
The drive shaft and the driven shaft are inserted through the central block, the node block, and the gear plate, and receive power from a motor to simultaneously rotate the plurality of drive gears and driven gears accommodated in each gear plate. gear pump available.
According to claim 1,
The central block further comprises an inlet path for receiving fluid from the outside, characterized in that the gear pump capable of discharging a fine flow rate.
According to claim 2,
The center block, node block, gear plate and end blocks are press-fitted by bolts and nuts,
The central block, the node block, the gear plate and the end blocks are gear pumps capable of discharging a fine flow, characterized in that a plurality of bolt fastening holes through which bolts for fastening can be inserted are formed.
According to claim 3,
The central block, the node block, the gear plate, and the end block are surface adjacent to each other that are plane-processed for watertightness.

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