KR20170093762A - High vacuum and wear resistant double-cut rotary pump - Google Patents

Abstract

The present invention relates to a high vacuum and abrasion resistance double-cutting rotary pump. More specifically, the high vacuum and abrasion resistance double-cutting rotary pump prevents interior fluid from leaking, and cuts and discharges foreign substances included in introduced fluid. In addition, a structure of the pump is improved to maintain high vacuum status at the inside, enables smooth pump transfer, and prevents abrasion of a plurality of sealing means, a cutting portion, a driving shaft rotating by being mutually abutted, and a link shaft. Thus, the high vacuum and abrasion resistance double-cutting rotary pump is able to easily pump a fluid to be transferred such as livestock excretion including foreign substances, industrial sludge, and wastewater, highly efficiently performs operation, and prevents abrasion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-vacuum and wear-resistant double-

The present invention relates to a high vacuum and abrasion-resistant double-cutting rotary pump capable of maintaining a high vacuum in the interior to smooth the feeding of a pump, cutting a foreign substance contained in the fluid, and preventing wear on the rotating drive shaft and the interlocking shaft .

Conventionally, a centrifugal pump is generally used as a pump for pumping a fluid containing a large amount of various foreign substances such as industrial waste sludge, industrial wastewater and the like.

However, since highly viscous fluids such as sludge and sludge mainly contain a large amount of fibrous materials and various foreign substances (such as wire or gloves), not only the pumping efficiency is lowered but also foreign substances are trapped between the rotor and the housing, There is a problem that the operation is not performed smoothly due to frequent occurrence of a failure.

Accordingly, development of a device for facilitating the feeding of the pump by easily cutting the foreign substance contained in the fluid is being developed.

Korean Registered Patent No. 10-0307044 (registered on August 17, 2001)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to improve the configuration of a cutting portion to prevent abrasion at a cutting portion, To prevent abrasion and to maintain high vacuum. In addition, various sealing structures inside the cylinder and the gearbox which are installed and installed such drive shaft and interlocking shaft are improved to have a structure for rigid fastening including prevention of fluid leakage. To provide a high vacuum and wear resistant double-cutting rotary pump.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

SUMMARY OF THE INVENTION The present invention, as a means for solving the above problems,

A driving shaft (10) connected to the driving means so as to be able to transmit power by the power transmitting means and rotated; A drive gear (11) formed on the outer circumference of one side of the drive shaft (10) and rotated together; An interlocking shaft 20 horizontally installed adjacent to the drive shaft 10; An interlocking gear 21 interlocking with the driving gear 11 at one outer peripheral edge of the interlocking shaft 20 so as to be gear-engaged and allowing the interlocking shaft 20 to rotate together with the driving shaft 10; Front and rear covers (31, 32) separated from each other at the outer peripheral edge of the other side of the drive shaft (10) and the interlocking shaft (20); A gear box 40 installed at a front end of the front end cover 31 outside the drive shaft 10 and the interlocking shaft 20; An inlet 11 provided outside the front cover 31 and the rear cover 32 for introducing a fluid to be transferred such as a shaft seal containing foreign substances or industrial sludge and wastewater into the cylinder cover 50, And a cylinder cover (50) on which a discharge port (12) to be discharged is formed; A drive shaft 10 to which the front end cover 31 and the rear end cover 32 are fastened and a lip seal installed at the outer circumferential portion of the outer periphery of the interlocking shaft 20 to prevent leakage of the fluid flowing into the cylinder cover 50 60); The driving shaft 10 and the interlocking shaft 20 are installed on the outer circumferences of the driving shaft 10 and the interlocking shaft 20 so that the front cover 31 and the rear cover 32 are adjacent to the lip seal 60, 20); Are provided on the outer periphery between the drive shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20 so as to be positioned on the same vertical line as each other, A cutting unit 100 for cutting foreign matter contained in the fluid to smooth the pumping feed; The inner peripheral surface of the driving shaft 10 and the inner peripheral surfaces of the front and rear covers 31 and 32 of the interlocking shaft 20 are locally inserted into the outer periphery of the driving shaft 10, A wear reducing section (110) for reducing wear of the sugar plate; And is formed between the cutting portion 100 and the cutting portion 100 at the outer periphery between the driving shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20, A depression 120 allowing the cutting portion 100 of the driving shaft 10 or the interlocking shaft 20 to be in contact to be in contact with the inner periphery of the driving shaft 10 at a predetermined interval H; And the cutting unit 100 includes a lower portion E1 and a lower portion E2 on the inlet 11 side of the portion where the fluid horizontally introduced into the housing h diverges in the upward and downward directions, The cutting portion 100 is rotated and transferred to all four portions of the discharge port 12 side and the lower edge portions E3 and E4 of the portion where the fluid branched in the housing is reintegrated, And the foreign matter is cut.

As described above, according to the present invention, there is provided a rotary pump having a structure for preventing internal fluid leakage, capable of firmly fastening between a plurality of components, maintaining a high vacuum inside, And the abrasion preventing part is provided to effectively cut and discharge the foreign substances contained in the fluid, and to prevent the abrasion of the cutting part and the shaft rotated by contact with each other.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a sectional view of one embodiment of a high vacuum and wear resistant double cutting rotary pump according to the present invention.
Fig. 2 is a perspective view of Fig. 1; Fig.
3 and 4 are views of an embodiment showing the internal construction of a rotary pump according to the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used in this specification and the appended claims for the purpose of description and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

According to one embodiment of the present invention,

A driving shaft (10) connected to the driving means so as to be able to transmit power by the power transmitting means and rotated; A drive gear (11) formed on the outer circumference of one side of the drive shaft (10) and rotated together; An interlocking shaft 20 horizontally installed adjacent to the drive shaft 10; An interlocking gear 21 interlocking with the driving gear 11 at one outer peripheral edge of the interlocking shaft 20 so as to be gear-engaged and allowing the interlocking shaft 20 to rotate together with the driving shaft 10; Front and rear covers (31, 32) separated from each other at the outer peripheral edge of the other side of the drive shaft (10) and the interlocking shaft (20); A gear box 40 installed at a front end of the front end cover 31 outside the drive shaft 10 and the interlocking shaft 20; An inlet 11 provided outside the front cover 31 and the rear cover 32 for introducing a fluid to be transferred such as a shaft seal containing foreign substances or industrial sludge and wastewater into the cylinder cover 50, And a cylinder cover (50) on which a discharge port (12) to be discharged is formed; A drive shaft 10 to which the front end cover 31 and the rear end cover 32 are fastened and a lip seal installed at the outer circumferential portion of the outer periphery of the interlocking shaft 20 to prevent leakage of the fluid flowing into the cylinder cover 50 60); The driving shaft 10 and the interlocking shaft 20 are installed on the outer circumferences of the driving shaft 10 and the interlocking shaft 20 so that the front cover 31 and the rear cover 32 are adjacent to the lip seal 60, 20); Are provided on the outer periphery between the drive shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20 so as to be positioned on the same vertical line as each other, A cutting unit 100 for cutting foreign matter contained in the fluid to smooth the pumping feed; The inner peripheral surface of the driving shaft 10 and the inner peripheral surfaces of the front and rear covers 31 and 32 of the interlocking shaft 20 are locally inserted into the outer periphery of the driving shaft 10, A wear reducing section (110) for reducing wear of the sugar plate; And is formed between the cutting portion 100 and the cutting portion 100 at the outer periphery between the driving shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20, A depression 120 allowing the cutting portion 100 of the driving shaft 10 or the interlocking shaft 20 to be in contact to be in contact with the inner periphery of the driving shaft 10 at a predetermined interval H; And the cutting unit 100 includes a lower portion E1 and a lower portion E2 on the inlet 11 side of the portion where the fluid horizontally introduced into the housing h diverges in the upward and downward directions, The cutting portion 100 is rotated and transferred to all four portions of the discharge port 12 side and the lower edge portions E3 and E4 of the portion where the fluid branched in the housing is reintegrated, And the foreign matter is cut.

The drive shaft 10 and the interlocking shaft 20 are provided with a log nut 81 at the front end of the front cover 31 and a stop is bent between the log nut 81 and the front cover 31, And a log washer 82 closely attached to the nut 81 side.

The lip seal 60 has a plurality of sealing pins 61 spaced apart from each other in the longitudinal direction on the inner peripheral edge of the lip seal 60 which is in close contact with the outer periphery of the driving shaft 10 or the interlocking shaft 20, The lip seal 60 and the drive shaft 10 or the interlocking shaft 20 can serve as a multi-stage sealing between the lip seal 60 and the interlocking shaft 20. The outer periphery of the lip seal 60 has a plurality of O-rings (62) are spaced apart from each other, and a plurality of O-rings (62) are provided to seal between the lip seal (60) and the front cover (31).

The interlocking gear 21 is provided with a bushing 22 which forms a step on the outer periphery of the interlocking shaft 20 and an interlocking gear 21 for forming a thread on the outer periphery at the step of the bushing 22 ) Are integrally installed.

The cutting unit 100 includes a mounting portion 101 inserted into the driving shaft 10 or the interlocking shaft 20, And has a relatively larger diameter than the mounting portion 101 and extends in a straight line having a shape corresponding to the straightened portion 121 of the depressed portion 120. The straightened portion of the depressed portion 120, 121) and an insertable extension (102) spaced a predetermined distance apart; A narrow force portion 103 whose diameter is gradually narrowed in an oblique shape equal to the diameter of the mounting portion 101 in the extending portion 102; And the groove (104) formed at the end of the recess (120) is inserted into the groove (104), thereby improving the cutting ability of the foreign substance contained in the fluid and reducing the occurrence of abrasion with the peripheral edge of the housing Prevention member 105; And a control unit.

The abrasion reducing unit 110 may include a plurality of abrasion reducing units 110 formed on the driving shaft 10 and a plurality of abrasion reducing units 110 formed on the interlocking shaft 20 at different positions And the abrasion-reducing section 110 is directly brought into contact with the outer periphery of the shaft to which it is abutted.

The depressed portion 120 includes a straight portion 121 that is drawn toward the inside of the driving shaft 10 or the interlocking shaft 20; A rounding part 122 which is subsequently formed as an arc in the straight line part 121; .

The rounding part 122 may include a cutting part 100 having one end inserted into the drive shaft 10 or the interlocking shaft 20 and the other end pushed into the recessed part 120 to be received in the recessed part 120, A packing member 130 to which the end of the packing member 130 is connected; Is further provided.

The cutting portion 100 is formed on the inlet 11 side and the lower edge portions E1 and E2 of the housing h or on the bottom surface of the housing h along the rotation direction of the drive shaft 10 and the interlocking shaft 20. [ the cutting portion 100 is rotated and fed at the lower edge portions E3 and E4 on the side of the discharge port 12 of the nozzle body h and the foreign substance contained in the fluid to be transported is cut.

Hereinafter, a high-vacuum and abrasion-resistant double-cutting rotary pump according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

The high vacuum and abrasion-resistant double cutting rotary pump according to the present invention includes a drive shaft 10, a drive gear 11, a link shaft 20, an interlock gear 21, front and rear covers 31 and 32, a gear box 40, A cylinder cover 50, a lip seal 60, a bearing 70, a cutting portion 100, a wear reducing portion 110, and a depressed portion 120.

The drive shaft 10 is connected to a driving means such as a motor by various power transmission means so as to be able to transmit power. The drive shaft 10 has a shaft-like shape as a whole, like the interlocking shaft 20 to be described later, and the outer periphery of the other end is formed of a rotor R having a relatively larger diameter than the shaft. (For the sake of convenience of explanation, in the present invention, a portion of the shaft other than the rotor R is referred to as the front end, and a portion where the rotor R is formed is referred to as the other end.) At the outer periphery of the front end of the drive shaft 10, So that the driving gear 11 formed on the outer periphery of the screw thread is integrally formed.

The interlocking shaft 20 is disposed adjacent to the driving shaft 10 in a horizontal direction and has a structure in which the interlocking shaft 20 is rotated together with the rotation of the driving shaft 10.

The interlocking shaft 20 is also provided with a rotor R on the other end side in the same manner as the drive shaft 10 and is provided with an interlocking gear (21) are integrally provided so that the interlocking shaft (20) is rotated together by the rotation of the drive shaft (10).

In addition, in the case of the interlocking gear 21 provided on the interlocking shaft 20 in the present invention, after the bushing 22 forming the step is formed on the outer periphery of the interlocking shaft 20, So that an interlocking gear 21 for forming a thread on the outer periphery is integrally provided.

The front and rear covers 31 and 32 are coupled to the driving shaft 10 and the interlocking shaft 20 at the same time. In the case of the front cover 31 and the rear cover 32, And are spaced apart from each other at the outer circumferential edge of the other end of the shaft 20 where the rotor R is formed.

The fluid to be conveyed, such as an axial flow containing foreign matter, industrial sludge and wastewater, is introduced into the space between the front cover 31 and the rear cover 32 and is then pumped to the outside after cutting by the cutting unit 100 And is discharged and discharged.

In other words, the drive shaft 10 and the interlocking shaft 20 are inserted into the front cover 31 at the front end of the rotor R in a state where the drive shaft 10 and the interlocking shaft 20 are horizontally connected to each other so as to transmit power, And the rear end cover 32 is inserted into the rear end thereof.

A log nut 81 is provided on the drive shaft 10 and the interlocking shaft 20 at the front end of the front cover 31. Between the log nut 81 and the front cover 31, And a log washer 82 closely attached to the log nut 81 side.

After the rear cover 32 is installed, the rear cover 32 is attached to the rear cover 32 to protect the driving shaft 10 exposed to the outside and the bearing 70 at the other end of the coupling shaft 20. [ A bearing cover 33 is further provided.

The gear box 40 protects the drive shaft 10 and the interlocking shaft 20 at the front end of the front cover 31. The front end portion of the drive shaft 10 is connected to the front end of the gear box 40 And the interlocking shaft 20 has a structure in which the front end of the interlocking shaft 20 is inserted into the gear box 40. [

It will be appreciated that a separate bearing B for easy rotation of the drive shaft 10 should be provided at a portion where the drive shaft 10 passes through the gear box 40.

Of course, the driving gear 11 and the interlocking gear 21 are provided at the front ends of the drive shaft 10 and the interlocking shaft 20, and these gears are protected in the gear box 40. [

The cylinder cover 50 is provided to protect the rotor R described above and is provided between the front cover 31 and the rear cover 32. The front cover 31 and the rear cover 32 And the rotor R is connected by connecting the rim.

One side of the cylinder cover 50 is fixed by a separate fixing means (bolt, nut or the like) together with the front cover 31 and the gear box 40 and the other side is fixed by the rear cover 32 and fixing means Loses.

The lip seal 60 is installed on the outer periphery of the drive shaft 10 and the outer periphery of the interlocking shaft 20 to which the front cover 31 and the rear cover 32 are fastened, . That is, the drive shaft 10 through which the shear cover 31 penetrates, the outer peripheral portion of the interlocking shaft 20, the drive shaft 10 through which the rear end cover 32 penetrates, and the outer peripheral portion of the interlocking shaft 20, (60) is formed.

The lip seal 60 includes a plurality of sealing pins 61 spaced apart from each other in the longitudinal direction at an inner circumferential edge of the lip seal 60 which is in close contact with the outer circumference of the driving shaft 10 or the interlocking shaft 20, So that the lip seal 60 can serve as a multi-stage sealing between the drive shaft 10 and the interlocking shaft 20. The outer periphery of the lip seal 60 is provided around the lip seal 60, A plurality of O-ring members 62 are spaced apart from each other, and a plurality of O-rings 62 are seated between the lip seal 60 and the front cover 31.

The bearing 70 is installed on the outer periphery of the drive shaft 10 and the outer periphery of the interlocking shaft 20 so that the front cover 31 and the rear cover 32 are engaged with each other so as to be adjacent to the lip seal 60, And the rotation of the interlocking shaft 20 is supported. That is, since the front end cover 31 and the rear end cover 32 are rotated in a state where the driving shaft 10 and the interlocking shaft 20 are passed through each other, in order to support such rotation, A bearing 70 should be provided in the through hole portion of the cover 31 and the rear cover 32.

The cutting unit 100 protrudes from the outer periphery of the driving shaft 10 and the interlocking shaft 20 to cut foreign matter contained in the fluid as described above.

The cutting portion 100 for this purpose includes a mounting portion 101, an extending portion 102, and a narrowed portion 103

The mounting portion 101 is inserted and fixed at a certain depth toward one end of the driving shaft 10 or the interlocking shaft 20 and the extending portion 102 is fixed to the driving shaft 10 or the interlocking shaft 20 by the mounting portion 101. [ (Thickness) of the driving shaft 10 and the concave portion 120 which is recessed and drawn into the driving shaft 10 and the interlocking shaft 20, which will be described later, And is formed so as to extend in a straight line shape having a shape corresponding to the outermost straight section 121 and to be spaced apart from the inner circumference (more precisely, the straight section 121) And is inserted into the depression 120.

The narrow force portion 103 is extended outwardly from the above-described extension portion 102, and gradually becomes narrower in an oblique shape so as to become the same as the straight portion of the mounting portion 101.

The cutting portion 100 according to the present invention is characterized in that a groove 104 is formed at an end of the narrowed portion 103 which is inserted into the recessed portion 120 and an abrasion- The member 105 can be inserted into the housing h to improve the cutting ability of the foreign matter contained in the fluid and to reduce the occurrence of abrasion with the inner periphery of the housing h which is in contact therewith.

The cutting portion 100 is formed so as to protrude from the outer periphery of the driving shaft 10 and the outer periphery of the interlocking shaft 20 so as to be positioned on the same vertical line.

When the fluid horizontally introduced through the inlet 11 of the housing h is branched in the upward and downward directions from one side of the housing h, The lower edge portions E1 and E2 on the one end side and the lower edge portions E1 and E2 of the inlet 11 in the direction of the flow path toward the rounded space, When the moving fluid is reintegrated and a total of four portions, that is, a portion where the flow direction changes horizontally toward the discharge port 12 formed horizontally, namely, one end side and the bottom edge portions E3 and E4 of the discharge port 12, In this portion where the edge portion and the cutting portion 100 meet, the foreign matter contained in the fluid to be transported is cut. That is, two portions of the driving shaft 10 and two portions of the interlocking shaft 20 correspond to each other, so that foreign matter cutting is performed at a total of four portions.

More specifically, the cutting unit 100 is cut at two positions in accordance with the rotation direction of the driving shaft 10 and the interlocking shaft 20. When the driving shaft 10 is rotated clockwise, the cutting portion 100 is rotated and fed at the lower and upper corners E1 and E2 of the inlet hill 11 and the foreign body contained in the fluid to be fed at the time of passing, The cutting portion 100 is rotated and transferred at the lower edge portions E3 and E4 on the side of the discharge port 12 of the housing h in the clockwise direction and the foreign material Is cut.

The abrasion reducing section 110 is formed on the outer periphery of the driving shaft 10 and the interlocking shaft 20 and is installed in the outer periphery of the driving shaft 10 and the outer peripheral edge of the interlocking shaft 20, And serves to reduce the abrasion of the sugar dish between the drive shaft 10 and the interlocking shaft 20.

The abrasion reducing unit 110 is installed on the outer circumference of the interlocking shaft 20 of the drive shaft 10 and has a plurality of abrasion reducing portions 110 formed on the drive shaft 10, And a plurality of abrasion reducing sections 110 formed on the interlocking shaft 20 are formed at different positions that do not correspond to each other and abut against each other so that the abrasion reducing section 110 formed on the driving shaft 10 is in contact with the interlocking shaft 20, The abrasion reducing section 110 formed on the interlocking shaft 20 is brought into contact with the outer peripheral edge of the driving shaft 10 where the abrasion reducing section 110 is not formed The abrasion-reducing portion 110 is directly brought into contact with the outer periphery of the abrasion-resistant portion.

As a result, the wear and tear of the drive shaft 10 and the interlocking shaft 20 can be reduced compared with the conventional art. The rubber material is used as the wear reducing part 110 to serve as a rubber packing, And the inside of the housing h in which the inside is maintained in a vacuum state can be maintained in a high vacuum state.

(Low pressure) is formed on the side of the inlet 11 into which the fluid flows, while the drive shaft 10 and the interlocking shaft 20 come into contact with each other and rotate in a predetermined direction. In this vacuum state, And the liquid is discharged through the opposite discharge port 12. The amount of the discharged fluid depends on how well the rotor R maintains the vacuum state, that is, the housing (not shown) formed by the rotor R h) the better the inner vacuum state is, the more easily the liquid can be sucked through the inlet 11.

The depression 120 is recessed at the outer circumferences of the driving shaft 10 and the interlocking shaft 20 and is formed at the outer periphery of the driving shaft 10 and the interlocking shaft 20, And the cutting portion 100 of the driving shaft 10 or the interlocking shaft 20 that are in contact with each other can be correspondingly inserted.

The depressed portion 120 is formed by a straight line portion 121 and a rounded portion 122 and is recessed.

The straight portion 121 is a portion that is drawn inward from the outer periphery of the driving shaft 10 or the interlocking shaft 20 and the round portion 122 is a portion do. When the cutting portion 100 corresponds to the depression 120, the outer periphery of the cutting portion 100 and the inner periphery of the depressed portion 120 do not contact each other.

One end of the rounded portion 122 of the depression 120 is inserted into the drive shaft 10 or the interlocking shaft 20 and the other end of the rounded portion 122 is inserted into the depressed portion 120 The packing member 130 is made of a rubber material so that the packing member 130 is pushed into the depression 120 and corresponding to and contacted with the end of the cutting portion 100 received in the depression 120. The left side of the fluid flowing into the depression 120 and the right side of the fluid discharged from the depression 120 are separated from each other to be separated from each other, (h) the inside can be sealed with a high vacuum.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: drive shaft 11: drive gear
20: interlocking shaft 21: interlocking gear
22: Bushing 31: Shear cover
32: rear end cover 33: bearing cover
40: gear box 41: oil cap
50: cylinder cover 51: inlet
52: discharge port 60: lip seal
61: sealing pin 62: o-ring member
70: Bearing 81: Log nut
82: log washer 100: cutting part
101: mounting portion 102:
103: Narrow strength part 104: Home
105: abrasion preventing member 110: abrasion reducing portion
120: depression portion 121: straight line portion
122: rounding part 130: packing member
B: Bearings E1, E2, E3, E4:
h: housing R: rotor

Claims (9)

A driving shaft (10) connected to the driving means so as to be able to transmit power by the power transmitting means and rotated;
A drive gear (11) formed on the outer circumference of one side of the drive shaft (10) and rotated together;
An interlocking shaft 20 horizontally installed adjacent to the drive shaft 10;
An interlocking gear 21 interlocking with the driving gear 11 at one outer peripheral edge of the interlocking shaft 20 so as to be gear-engaged and allowing the interlocking shaft 20 to rotate together with the driving shaft 10;
Front and rear covers (31, 32) separated from each other at the outer peripheral edge of the other side of the drive shaft (10) and the interlocking shaft (20);
A gear box 40 installed at a front end of the front end cover 31 outside the drive shaft 10 and the interlocking shaft 20;
An inlet 11 provided outside the front cover 31 and the rear cover 32 for introducing a fluid to be transferred such as a shaft seal containing foreign substances or industrial sludge and wastewater into the cylinder cover 50, And a cylinder cover (50) on which a discharge port (12) to be discharged is formed;
A drive shaft 10 to which the front end cover 31 and the rear end cover 32 are fastened and a lip seal installed at the outer circumferential portion of the outer periphery of the interlocking shaft 20 to prevent leakage of the fluid flowing into the cylinder cover 50 60);
The driving shaft 10 and the interlocking shaft 20 are installed on the outer circumferences of the driving shaft 10 and the interlocking shaft 20 so that the front cover 31 and the rear cover 32 are adjacent to the lip seal 60, 20);
Are provided on the outer periphery between the drive shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20 so as to be positioned on the same vertical line as each other, A cutting unit 100 for cutting foreign matter contained in the fluid to smooth the pumping feed;
The inner peripheral surface of the driving shaft 10 and the inner peripheral surfaces of the front and rear covers 31 and 32 of the interlocking shaft 20 are locally inserted into the outer periphery of the driving shaft 10, A wear reducing section (110) for reducing wear of the sugar plate;
And is formed between the cutting portion 100 and the cutting portion 100 at the outer periphery between the driving shaft 10 and the front and rear covers 31 and 32 of the interlocking shaft 20, And a depressed portion 120 that allows the cutting portion 100 of the driving shaft 10 or the interlocking shaft 20 to be in contact to be in contact with the inner peripheral edge of the driving shaft 10 at a predetermined distance H, Lt; / RTI >
The cutting part 100 has a lower edge E1 and a lower edge E2 on the inlet 11 side and a lower edge E2 on the inlet 11 side of the portion in which the horizontally flowing fluid divides in the up and down direction inside the housing h, The cutting portion 100 is rotated and transferred to all four portions of the discharge port 12 side and the lower edge portions E3 and E4 of the portion to be reintegrated, Wherein the high-pressure and abrasion-resistant double-cutting rotary pump is characterized by comprising:
The method according to claim 1,
The drive shaft (10) and the interlocking shaft (20)
A log nut 81 is provided at the front end of the front cover 31,
Further comprising a log washer (82) that is interrupted between the log nut (81) and the front cover (31) and closely attached to the log nut (81).
The method according to claim 1,
The lip seal (60)
A plurality of sealing pins 61 spaced from each other in the longitudinal direction are provided on the inner peripheral edge of the inner peripheral edge of the drive shaft 10 or the outer peripheral edge of the associated shaft 20 so as to be bent, So that the lips 60 and the drive shaft 10 or the interlocking shafts 20 can serve as a multi-stage sealing,
A plurality of O-rings (62) are spaced apart from each other around the outer periphery of the lip seal (60) to seal between the lip seal (60) and the front cover (31) And anti-wear double-cutting rotary pump.
The method according to claim 1,
The interlocking gear 21
After a bushing 22 is formed to form a step on the outer periphery of the interlocking shaft 20,
And an interlocking gear (21) for forming a thread on the outer periphery at a step of the bushing (22) is integrally installed.
The method according to claim 1,
The cutting unit 100 includes:
A mounting portion 101 inserted into the driving shaft 10 or the interlocking shaft 20 so as to be inserted therein;
And has a relatively larger diameter than the mounting portion 101 and extends in a straight line having a shape corresponding to the straightened portion 121 of the depressed portion 120. The straightened portion of the depressed portion 120, 121) and an insertable extension (102) spaced a predetermined distance apart;
A narrow force portion 103 whose diameter is gradually narrowed in an oblique shape equal to the diameter of the mounting portion 101 in the extending portion 102;
And the groove (104) formed at the end of the recess (120) is inserted into the groove (104), thereby improving the cutting ability of the foreign substance contained in the fluid and reducing the occurrence of abrasion with the peripheral edge of the housing Prevention member 105;
And a high-pressure and abrasion-resistant double-cutting rotary pump.
The method according to claim 1,
The abrasion reducing unit 110
A plurality of abrasion reducing sections 110 formed on the driving shaft 10 and a plurality of abrasion reducing sections 110 formed on the interlocking shaft 20 are formed at different positions which do not correspond to each other and directly abraded Wherein the abatement portion (110) is brought into contact with the abutting portion (110).
The method according to claim 1,
The depression (120)
A straight portion 121 which is drawn toward the inside of the driving shaft 10 or the interlocking shaft 20;
A rounding part 122 which is subsequently formed as an arc in the straight line part 121;
Characterized in that the double-cutting rotary pump is made of high-abrasion and wear-resistant double-cutting.
8. The method of claim 7,
The rounding unit 122
One end of the cutting member 100 is inserted into the driving shaft 10 or the interlocking shaft 20 and the other end of the cutting member 100 is pushed into the depressed portion 120 so that the end portion of the cutting portion 100, (130);
Further comprising: a high-pressure and abrasion-resistant double-cutting rotary pump.
The method according to claim 1,
The cutting unit 100 is configured to move along the rotation direction of the driving shaft 10 and the interlocking shaft 20,
On the side of the inlet (11) of the housing (h), the lower edge portions (E1, E2) or
The cutting portion 100 is rotated and fed at the lower edge portions E3 and E4 of the housing h on the side of the discharge port 12 and the foreign substance contained in the fluid to be transferred is cut when the cutting portion 100 is passed therethrough High vacuum and wear resistant double-cut rotary pump.

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