KR200282806Y1 - A Housing Structure of Gear Pump - Google Patents

Abstract

The present invention relates to the housing structure of the gear pump to improve the workability and to reduce the required cost by making the housing frame of the gear pump divided into a fixed part and a variable part to facilitate the adjustment of the connection pipe angle of the flow path.

The prior art requires a separate material and cumbersome work in order to adjust the flow direction during the field work, wasting the manpower and time, reducing workability, and a separate material cost.

The present invention includes a pumping unit for flowing a fluid through the movement of the space formed between the grooves of the tooth and the wall of the circumference by inserting two pump gears into a casing that is external to it, and the driving of the pumping unit In the gear pump comprising a housing frame for accommodating the drive shaft and the parts, such as gears, bearings, and fixedly support the bearing, the landing base is formed integrally below the center,

The housing frame is characterized in that the variable portion for free rotation, and is divided into a fixed part coupled to the housing frame, the housing frame is a variable central cylinder provided with a landing base, the bearings of the drive motor side to both sides of the central cylinder portion The motor side fixing part for fixing and the pumping part side fixing part including the casing of the pumping part is to be combined.

Description

Housing structure of gear pump

The present invention relates to a gear pump, and in particular, the housing frame of the gear pump is divided into a fixed part and a variable part to be configured to facilitate the adjustment of the connection pipe angle of the flow path, thereby significantly improving workability and reducing the required cost. It relates to a housing structure.

In general, the gear pump is provided with a pumping portion for flowing the fluid through the movement of the space formed between the grooves of the tooth and the circumferential wall by putting the two gears meshing with each other in a casing external to it It is a pump.

1 is a partial cutaway perspective view showing the inside of a general gear pump.

As shown in Figure 1, the general gear pump is provided with a housing (1) forming the appearance, the reducer box (2) is coupled to one side of the housing (1), the other of the housing (1) The casing 3 of the pumping part is coupled to the side.

In the reducer box 2, a motor (not shown) and a shaft 4 are connected to each other to rotate the first reduction gear 5 and the first reduction gear, which rotate in response to a driving force of the motor. The second reduction gear (6) having a diameter larger than the diameter of the first reduction gear (5) is built to decelerate, the first reduction gear (5) and the second reduction gear (6) in opposite directions Is rotated.

In the housing 1, the first rotary gear 7 is axially connected to the first reduction gear 5 and rotated by the first reduction gear 5, and the first rotation gear 7 meshes with the first rotation gear 7. The second rotary gear 8 is rotated according to the rotation of the first rotary gear 7, and the first rotary gear 7 and the second rotary gear 8 are rotated in opposite directions. A bearing 17 is provided for the support of the wholes.

The first lobe gear 9 and the second rotary gear 9 which are connected to the first rotary gear 7 in the casing 3 of the pumping part and are rotated by the rotational force of the first rotary gear 7. And a second lobe gear 10 which is connected to the shaft and coupled to the first lobe gear 9 to receive the rotational force of the second rotary gear 8 and rotates therein, wherein the first lobe gear 9) and the second lobe gear 10 are rotated in opposite directions to each other, the fluid is transferred in accordance with the rotation of the first, second lobe gear (9, 10).

Between the first rotary gear 7 and the first lobe gear 9 and between the second rotary gear 8 and the second lobe gear 10, the fluid from the shaft portion that rotates at high speed under high temperature and high pressure is A mechanical seal 11 is coupled to prevent leakage.

An outer flow path of the fluid, that is, an inflow portion 13, is formed at an outer side of the casing 3 so that the fluid flows into the casing 3, and the casing 3 is a position opposite to the inflow portion 13. The flow path of the discharged fluid, that is, the discharge part 15 is formed at the outer side of the casing 3 so as to discharge the fluid from the inside of the casing 3, and the inlet part 13 and the discharge part which are outside the casing 3 are formed. Flange 16 to which the connection pipe is coupled is formed at the end of 15, respectively.

This conventional gear pump is powered by a motor (not shown) is driven to generate a rotational force to rotate the shaft 4 connected to the motor, the reducer box 2 by the rotating shaft (4) The first reduction gear 5 installed therein is rotated.

As the first reduction gear 5 rotates, the second reduction gear 6 meshed with the first reduction gear 5 rotates in the opposite direction to the first reduction gear 5, wherein the second reduction gear ( As the diameter of 6) is larger than the diameter of the first reduction gear 5, the rotation speed rpm of the first reduction gear 5 is decelerated by the second reduction gear 6.

The first rotation gear 7 installed in the housing 1 in a state where the rotation speed is decelerated by the second reduction gear 6 and axially connected to the second reduction gear 6 is connected to the second reduction gear 6. It is rotated by receiving rotational force.

At the same time, the second rotary gear 8 meshed with the first rotary gear 7 also rotates along the rotating first rotary gear 7, wherein the second rotary gear 8 is the first rotary gear 7. The first and second rotary gears 7 and 8 rotate in opposite directions with each other.

In addition, the first and second lobe gears 9 and 10 installed in the casing 3 of the pumping part and axially connected to the first and second rotary gears 7 and 8 are also rotated, that is, the first rotary gear 7. ) Is axially connected to the second lobe gear 10, the second rotary gear 8 is axially connected to the first lobe gear (9), the first lobe gear (9) and the second lobe gear (10). ) Is in engagement with each other, the first lobe gear 9 and the second lobe gear 10 is rotated together with the rotating first and second rotary gears 7, 8 as well as the direction of the arrow shown in the drawing Rotate in opposite directions.

Therefore, the fluid flowing into the casing 3 through the inlet 13 of the pumping casing 3 is a space formed in the groove of the teeth of each of the first and second lobe gears 9 and 10 rotated in the engaged state. It is conveyed in the opposite direction of the inlet 13 through the discharge portion 15 is discharged to the outside of the gear pump.

The housing 1 accommodates components such as gears and bearings installed therein, and in particular, supports the bearings. The housing 1 is configured to have a stable landing by integrally forming a landing base below the center of the housing.

By the way, in the prior art gear pump of such a configuration, the inlet and discharge pipes are connected to the inlet and the discharge part because the direction of the inflow and discharge position of the fluid to be transported is not always horizontal in the field work Connection pipes are used to adjust the direction.

That is, the flow paths of the inlet and discharge parts are formed horizontally, whereas the direction of the inflow and discharge positions of the transfer fluid is often formed to be different from the flow direction of the gear pump. 16) to install a separate connection pipe that is assembled at least two or more elbows, etc., without direct connection to the connector to adjust the direction, and to connect the connection of the fluid to the additional connection pipe provided will be.

As described above, the conventional technology requires a separate pipe material and cumbersome work to adjust the flow path direction during the field work, which wastes manpower and time, deteriorates workability, and requires a separate material cost.

The present invention has been devised to solve the above problems,

An object of the present invention is by dividing the housing frame into a variable central barrel portion in which the landing base is formed, and a fixed portion on both sides for holding the bearing and the pumping portion as the shaft support,

If the direction of the flow path is required during the field work of the gear pump, the gear structure provides a housing structure of the gear pump to significantly reduce manpower and time and improve workability by allowing the direction of the flow path to be easily adjusted without a separate connection pipe work. Is in.

1 is a partial cutaway perspective view showing the inside of the gear pump.

2 is a cross-sectional view showing the configuration of an embodiment according to the present invention.

3 is a cross-sectional view of a state in which the variable barrel portion is excluded in FIG.

4 is a side view of FIG. 2;

* Description of the symbols for the main parts of the drawings *

1: housing 2: reducer box

3: casing 4: shaft

5: 1st reduction gear 6: 2nd reduction gear

7: 1st rotation gear 8: 2nd rotation gear

9: first lobe gear 10: second lobe gear

11: mechanical seal 12: inlet

14: discharge part 100: housing frame according to the present invention.

110: variable portion (variable medium barrel) 111: landing base

120: fixed part 120a: motor side fixed part

120b: pumping part side fixing part 140: screw

The housing structure of the gear pump according to the present invention to achieve the above object,

Two pump gears are placed in a casing that circumscribes them, and the gear is rotated to include a pumping part for flowing fluid through a movement of a space formed between the groove of the tooth and the wall of the circumference, and a driving shaft for driving the pumping part; In the gear pump configured to accommodate the parts, such as gears, bearings, and fixedly support the bearing, the housing frame is formed integrally with the landing base below the center,

The housing frame is divided into a variable part and a fixed part for free rotation, characterized in that coupled to.

As an embodiment of the present invention,

The housing frame is a variable barrel portion provided with a landing base,

The motor side fixing part for fixing the bearings of the drive motor side to the both sides of the central cylinder portion and characterized in that the pumping unit side fixing portion including a casing of the pumping portion is coupled.

As an embodiment of the present invention,

The housing frame is characterized in that the variable portion and the fixed portion of the housing frame is screwed to a pitch having a predetermined angle.

Hereinafter, an embodiment of the housing structure of the gear pump of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a cross-sectional view showing the configuration of an embodiment according to the present invention, Figure 3 is a cross-sectional view excluding a variable barrel to facilitate understanding of the present invention in Figure 2, Figure 4 is a side view of FIG.

As shown in Figure 2 to 4, the housing structure of the gear pump according to the present invention is

Two pump gears (9) (10) in a casing (3) circumscribed therein and provided with a pumping portion for flowing the fluid through the movement of the space formed between the groove of the tooth and the circumferential wall by rotating the gear; In the gear pump configured to accommodate the drive shaft for driving the pumping unit and the parts, such as gears, bearings, and fixedly support the bearing, the landing frame is integrally formed on the lower side of the center,

It is composed of a housing frame 100 is divided into a variable part 110 and a fixed part 120 to be freely rotated.

The housing frame 100 includes a variable barrel portion 110 having a landing base 111 and a fixing portion 120 for fixing bearings 17 installed on both sides of the variable barrel portion 110. It is configured to be divided into three lumps and coupled, and the barrel portion 110 is variable.

The fixing part 120 includes a motor shaft fixing part 120a for housing the driving shaft 4, the reduction gears 5, 6, etc. on the driving motor side and fixing the bearing 17, and a casing 3 of the pumping part. It was composed of a pumping part side fixing part (120b) comprising a.

The variable barrel part 110 is formed between the motor side fixing part 120a and the pumping part side fixing part 120b, and has a separate bearing fixing body for fixing the bearing 17a installed in the inner space thereof. 130).

In one embodiment according to the present invention, the variable portion 110 and the fixing portion 120 is coupled to the screw 140 at a pitch having a predetermined angle to facilitate the adjustment of the angle adjustment degree.

Look at the working state of the present invention having such a configuration.

In the housing frame 100 according to the present invention, the fixing part 120 for supporting the drive shaft system for directly contacting and fixing the bearing 17 related to the drive shaft is left in a fixed state, and does not directly contact the bearing, but only the internal space. By forming the barrel portion to be formed into a variable portion, so that the variable barrel portion 110 can be adjusted by rotation, the passage of the flow path of the inlet portion 13 and the discharge portion 15 of the pumping section without affecting the support of the drive system To adjust the direction.

For example, when the pitch of the fastening hole of the screw 140 is formed at an angle of 30 degrees, and the flow path piping directions of the inlet part 13 and the discharge part 15 need to be rotated 30 degrees, both sides of the variable barrel part 110 are provided. Loosen the screw 140 is fastened to the fixed portion is to fasten by rotating the fastening hole is moved one.

In this case, since the landing base 111 is formed in the variable barrel part 110, the landing is based on the variable barrel part, and the fixed part 120 is rotated based on the variable barrel part 110. The flow path piping angles of the inflow part 13 and the discharge part 15 of a pumping part are adjusted in the state.

As described above, the housing structure of the gear pump according to the present invention has a bearing for fixing the shaft to the housing frame 100 and fixing parts 120a and 120b on both sides to support the pumping part, and the direct fixing of the bearing as the shaft support. By splitting the variable barrel portion 110 into an irrelevant portion so that the variable barrel portion 110 can be rotated, the connection pipe angles of the inlet and outlet portions of the pumping part can be freely adjusted.

In this configuration, when adjusting the inflow and outflow path angles of the inlet and outlet parts, the angle adjustment is performed by a simple operation of loosening and tightening only the screws 140 that fasten the variable barrel part 110 and the fixing parts 120a and 120b. By completing the work, the cost of materials, manpower and working time is significantly reduced compared to the prior art in which a separate connection pipe was additionally required.

The present invention as described above can be variously substituted, modified and changed within the scope without departing from the spirit of the present invention for those skilled in the art to which the present invention belongs, it is limited to the above embodiments and drawings It is not.

As described in detail above, the housing structure of the gear pump according to the present invention,

In the gear pump, by dividing and coupling the structure of the housing frame into a fixed portion and a variable portion to rotate the flow path angle,

It is economical to reduce the cost by eliminating the additional burden of materials and remarkably improving the workability by easily and easily adjusting the angle when connecting the flow path connected to the inlet and outlet of the gear pump at the work site of the gear pump. It is a technology that has economic advantages.

Claims (3)

Two pump gears are placed in a casing that circumscribes them, and the gear is rotated to include a pumping part for flowing fluid through a movement of a space formed between the groove of the tooth and the wall of the circumference, and a driving shaft for driving the pumping part; In the gear pump configured to accommodate the parts, such as gears, bearings, and fixedly support the bearing, the housing frame is formed integrally with the landing base below the center, The housing frame is a housing structure of the gear pump, characterized in that the coupling is divided into a fixed portion and a fixed portion for free rotation. The method of claim 1, The housing frame is a variable barrel portion provided with a landing base, The housing structure of the gear pump, characterized in that coupled to the motor side fixing part for fixing the bearings of the drive motor side to the both sides of the barrel and the pumping part side fixing part including the casing of the pumping part. The method according to claim 1 or 2, Housing structure of the gear pump, characterized in that the variable portion and the fixed portion of the housing frame screwed to a pitch having a predetermined angle.