CN209908774U

CN209908774U - Two-stage impurity pump

Info

Publication number: CN209908774U
Application number: CN201920679588.6U
Authority: CN
Inventors: 周增华; 李金鹏; 曹书平; 赵占奎; 李金中
Original assignee: Henan Chemical Machinery Manufacturing Co Ltd
Current assignee: Henan Chemical Machinery Manufacturing Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-07
Anticipated expiration: 2029-05-13

Abstract

A two-stage impurity pump comprises a base, wherein a pump main body is transversely arranged on one side of the upper end of the base through a bracket, a driving motor connected with a pump shaft of the pump main body is transversely arranged on the other side of the upper end of the base through a support, and the pump main body is sequentially provided with a sealing body and a conveying body from right to left; the conveying body comprises a first-stage volute and a second-stage volute which are sequentially connected from right to left, one end, away from the driving motor, of the pump shaft sequentially penetrates through the sealing body, the first-stage volute and the second-stage volute from right to left, the pump shaft is respectively sleeved with a first-stage impeller and a second-stage impeller in the shell cavities of the first-stage volute and the second-stage volute, a second-stage feeding pipe communicated with the shell cavity of the second-stage volute is arranged on the left side of the second-stage volute, a first-stage feeding pipe communicated with the shell cavity of the first-stage volute is arranged on the front side of the first-stage volute, and a discharging; the utility model has the characteristics of the operation is stable, and the leakproofness is good, reasonable in design, the lift is high.

Description

Two-stage impurity pump

Technical Field

The utility model relates to an impurity pump equipment technical field, concretely relates to bipolar impurity pump.

Background

The pump is a machine for conveying fluid or pressurizing fluid, which transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, the pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, and can also convey liquid, gas mixture and liquid containing suspended solid;

the pump head of the water pump refers to the height of the water pump capable of pumping water, is an important working performance parameter of the pump, is also called a pressure head, and can be expressed as the increase of a pressure energy head, a kinetic energy head and a potential energy head of fluid, the pump head size of the pump depends on the structure of the pump, such as the size of the diameter of an impeller, the bending condition of blades and the like, and the rotating speed, the pressure head of the pump cannot be theoretically accurately calculated, generally measured by an experimental method, most of the existing impurity pumps are single-stage pumps with only one conveying impeller, the pump head is low, and therefore the structure of a bipolar impurity pump needs to be optimized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art and providing one kind and having the operation stably, the leakproofness is good, reasonable in design, characteristics such as lift height.

The technical scheme of the utility model according to down:

a two-stage impurity pump comprises a base, wherein a pump main body is transversely arranged on one side of the upper end of the base through a bracket, a driving motor connected with a pump shaft of the pump main body is transversely arranged on the other side of the upper end of the base through a support, and the pump main body is sequentially provided with a sealing body and a conveying body from right to left;

the conveying body comprises a first-stage volute and a second-stage volute which are sequentially connected from right to left, one end, far away from the driving motor, of the pump shaft sequentially penetrates through the sealing body, the first-stage volute, the second-stage volute and the pump shaft from right to left, and is respectively sleeved with a first-stage impeller and a second-stage impeller in a shell cavity of the first-stage volute and the second-stage volute, a second-stage inlet pipe communicated with the shell cavity is arranged on the left side of the second-stage volute, a first-stage inlet pipe communicated with the shell cavity is arranged on the front side of the first-stage volute, and a discharge pipe communicated with the shell cavity of the first-stage volute and the shell cavity of.

Furthermore, the first-stage volute comprises a left volute cavity and a right volute cavity which are communicated with each other, and a first-stage impeller is sleeved on a pump shaft in the left volute cavity.

Furthermore, an oil cup sealing cover sleeved on the pump shaft is arranged on the right side of the right volute cavity, an auxiliary conveying sealing cavity is formed by the right side wall of the right volute cavity and the left side wall of the oil cup sealing cover, the auxiliary conveying sealing cavity is of a conical structure with a small left end and a large right end, an auxiliary impeller sleeved on the pump shaft is arranged in the auxiliary conveying sealing cavity, and the auxiliary conveying sealing cavity is communicated with the discharge pipe.

Further, the upside of oil cup closing cap is equipped with the oil cup that the slope was arranged, axle sleeve and sponge packing have set gradually from inside to outside in the holding intracavity between the inboard of oil cup closing cap and the pump shaft outside, be equipped with the water seal ring on the sponge packing, the inboard cartridge in holding chamber right side has the sealed lid of packing that offsets with the right side of sponge packing, and the bearing load of pump shaft is shared to the axle sleeve, and the sponge packing improves the leakproofness of installation department, and the water seal ring is introduced the high pressure water of the water seal pipe of flowing through in packing both sides prevent the air admission pump, still can cool off and lubricate the pump shaft.

Furthermore, a check ring and a water throwing ring which are sleeved on the pump shaft are sequentially arranged between the right side of the shaft sleeve and the left side of the sealing body from left to right, the check ring is used for preventing the pump shaft from moving, the water throwing ring is sleeved on the pump shaft, and the water throwing ring blocks and throws out the water leakage of the left side packing sealing cover to prevent the water from being directly sprayed into the sealing body.

Further, bracket, oil cup closing cap, one-level spiral case are through passing left side, the oil cup closing cap downside of bracket, fixing at the first bolt fixed connection of one-level spiral case downside in proper order from right to left, oil cup closing cap, one-level spiral case are through passing oil cup closing cap upside and the second bolt fixed connection of one-level spiral case downside in proper order from right to left, are the connection of dismantling between bracket, oil cup closing cap, the one-level spiral case, and the convenience is dismantled when some trouble emergence and is changed.

Further, the seal includes the casing, both ends are provided with left gland and right gland respectively about the casing, left gland and right gland form the shell chamber of seal together, the pump shaft passes the seal shell chamber from right to left, the left side in seal shell chamber is equipped with the first bearing of suit in the outside of pump shaft, the right side in seal shell chamber is equipped with the suit of two back to back installations at the outside second bearing of pump shaft, the right side of seal is provided with the adapter sleeve of suit in the outside of pump shaft, and the bearing of back to back installation provides the relatively higher bearing configuration of rigidity, can bear the moment of overturning moreover, and the adapter sleeve is used for fixing a position left side back to back bearing.

Further, the upside at casing middle part is equipped with the oil cover, the deep chi of the oil degree is installed to the upper shed of oil cover, and the surplus of lubricating oil is conveniently looked over to the deep chi of oil degree, and then in time supplyes.

Further, the bracket includes vertical left branch leg and the right branch leg that sets up in its left and right sides, link to each other through the roll adjustment device between the front side of casing and the right branch leg, the roll adjustment device includes adjusting block, roll adjustment bolt, stop nut, the front side at the casing is fixed to the adjusting block, the front side of adjusting block is provided with the connecting plate, the roll adjustment bolt passes right branch leg and connecting plate from the right side to the left side in proper order, the left and right sides of connecting plate and the left side of right branch leg all are provided with the spiro union at the outside stop nut of roll adjustment bolt, can finely tune the mounted position of seal left through the roll adjustment device, make things convenient for the installation of equipment.

Furthermore, the pump shaft is connected with a main shaft of the driving motor through a coupler, and the coupler is used for preventing the coupled machine element from bearing overlarge load and playing a role in overload protection.

Compared with the prior art, the beneficial effects of the utility model are that: the impurity pump is provided with two suction pipes and one pressure outlet pipe by additionally arranging a second-stage volute on the pump main body, wherein the second-stage volute is provided with a second-stage feeding pipe, a second-stage impeller in the second-stage volute independently carries out conveying work, and the impurity pump is provided with the first-stage feeding pipe of the first-stage volute and further improves the lift of the impurity pump; the utility model has the characteristics of the operation is stable, and the leakproofness is good, reasonable in design, the lift is high.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an enlarged view taken at A of FIG. 1;

FIG. 4 is an enlarged view at B of FIG. 1;

fig. 5 is an enlarged view at C of fig. 1.

Reference numerals: 1. a base, 2, a pump main body, 3, a support, 4, a pump shaft, 5, a driving motor, 6, a first-stage volute, 7, a second-stage volute, 8, a second-stage feeding pipe, 9, a first-stage feeding pipe, 10, a discharging pipe, 11, a first-stage impeller, 12, a second-stage impeller, 13, an oil cup sealing cover, 14, an auxiliary conveying sealing cavity, 15, an auxiliary impeller, 16, a fastening sleeve, 17, an oil cup, 18, a shaft sleeve, 19, a sponge packing, 20, a water sealing ring, 21, a sealing body, 211, a shell, 212, a left sealing gland, 213, a right sealing gland, 22, a conveying body, 23, a water throwing ring, 24, a bracket, 241, a left leg, 242, a right leg, 25, a first bolt, 26, a second bolt, 27, a first bearing, 28, a second bearing, 29, an oil cover, 30, an oil depth gauge, 31, a distance adjusting device, 311, an adjusting block, 312, a distance adjusting bolt, 313, a limiting nut, 314 and, 32. coupling, 33, retaining ring, 34, packing seal lid.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, a two-stage trash pump comprises a base 1, the base is a welded steel frame, one side of the upper end of the base 1 is transversely provided with a pump main body 2 through a bracket 24, the other side of the upper end of the base 1 is transversely provided with a driving motor 5 connected with a pump shaft 4 of the pump main body 2 through a bracket 3, the pump main body 2 is sequentially provided with a sealing body 21 and a conveying body 22 from right to left, the sealing body 21 mainly functions to transmit and support the pump shaft and transmit torque, and the conveying body 22 functions to convey solid-liquid materials;

the conveying body 22 comprises a first-stage volute 6 and a second-stage volute 7 which are sequentially connected from right to left, one end, far away from the driving motor 5, of the pump shaft 4 sequentially penetrates through the sealing body 21, the first-stage volute 6 and the second-stage volute 7 from right to left, the pump shaft 4 is respectively sleeved with a first-stage impeller 11 and a second-stage impeller 12 in the shell cavities of the first-stage volute 6 and the second-stage volute 7, the second-stage impeller 12 is sleeved at the leftmost end of the pump shaft 4, and the pump shaft 4 does not penetrate through the second, a secondary feed pipe 8 communicated with the shell cavity is arranged at the left side of the secondary volute 7, the feed inlet of the secondary feed pipe 8 can be connected with a bent pipe to adjust the feed direction, the front side of one-level spiral case 6 is equipped with the one-level inlet pipe 9 rather than the shell chamber intercommunication, the front side of carrier 22 is located vertical discharging pipe 10 that is equipped with between one-level inlet pipe 9 and the second grade inlet pipe 8 and communicates with 6 shell chambers of one-level spiral case and 7 shell chambers of second grade spiral case.

The primary volute 6 comprises a left volute cavity 61 and a right volute cavity 62 which are communicated with each other, an opening is formed in the joint of the left volute cavity 61 and the right volute cavity 62, the pump shaft 4 penetrates through the opening, and the pump shaft 4 in the left volute cavity 61 is sleeved with the primary impeller 11.

An oil cup sealing cover 13 sleeved on the pump shaft 4 is arranged on the right side of the right volute cavity 62, an auxiliary conveying sealing cavity 14 is formed by the right side wall of the right volute cavity 62 and the left side wall of the oil cup sealing cover 13, the auxiliary conveying sealing cavity 14 is of a conical structure with a small left end and a large right end, an auxiliary impeller 15 sleeved on the pump shaft 4 is arranged in the auxiliary conveying sealing cavity 14, an axial positioning sleeve is arranged between the left end of the auxiliary impeller 15 and the right end of the primary impeller 11, and the auxiliary conveying sealing cavity 14 is communicated with the discharge pipe 10.

The oil cup sealing device is characterized in that an oil cup 17 which is obliquely arranged is arranged on the upper side of the oil cup sealing cover 13, a shaft sleeve 18 and a sponge packing 19 are sequentially arranged in a containing cavity between the inner side of the oil cup sealing cover 13 and the outer side of the pump shaft 4 from inside to outside, a water seal ring 20 is arranged on the sponge packing 19, a packing sealing cover 34 which is abutted against the right side of the sponge packing 19 is inserted into the right inner side of the containing cavity, and the packing sealing cover 34 is fixed on the right side of the oil cup sealing cover 13 through a bolt.

And a check ring 33 and a water throwing ring 23 which are sleeved on the pump shaft 4 are sequentially arranged between the right side of the shaft sleeve 18 and the left side of the sealing body 21 from left to right.

The bracket 24, the oil cup sealing cover 13 and the first-stage volute 6 are fixedly connected through a first bolt 25 which sequentially penetrates through the left side of the bracket 24 and the lower side of the oil cup sealing cover 13 from right to left and is fixed on the lower side of the first-stage volute 6, and the oil cup sealing cover 13 and the first-stage volute 6 are fixedly connected through a second bolt 26 which sequentially penetrates through the upper side of the oil cup sealing cover 13 and the lower side of the first-stage volute 6 from right to left.

The sealing body 21 comprises a housing 211, a left sealing gland 212 and a right sealing gland 213 are respectively arranged at the left end and the right end of the housing 211, the left sealing gland 212 and the right sealing gland 213 form a shell cavity of the sealing body 21 together, the pump shaft 4 penetrates through the shell cavity of the sealing body 21 from right to left, a first bearing 27 sleeved outside the pump shaft 4 is arranged at the left side of the shell cavity of the sealing body 21, two second bearings 28 which are installed back to back and sleeved outside the pump shaft 4 are arranged at the right side of the shell cavity of the sealing body 21, the second bearings 28 are angular contact bearings, a clamping sleeve 16 sleeved outside the pump shaft 4 is arranged at the right side of the sealing body 21, the clamping sleeve 16 is used for fixing the second bearings 28, and the clamping sleeve 16 is a most commonly used part when the bearing with a conical hole is positioned on a cylindrical shaft, and can be used for an.

An oil cover 29 is arranged on the upper side of the middle of the shell 211, an oil depth gauge 30 is installed at the upper opening of the oil cover 29, and an oil tank integrated with the oil cover 29 is used for providing lubricating oil for the rotation of the pump shaft 44 in the sealing body 21.

Bracket 24 includes vertical setting at the left and right sides's of its left and right sides left leg 241 and right leg 242, link to each other through roll adjustment device 31 between the front side of casing 211 and the right leg 242, roll adjustment device 31 includes adjusting block 311, roll adjustment bolt 312, stop nut 313, adjusting block 311 fixes the front side at casing 211, adjusting block 311's front side is provided with connecting plate 314, roll adjustment bolt 312 passes right leg 242 and connecting plate 314 from the right side to the left side in proper order, the left and right sides of connecting plate 314 and the left side of right leg 242 all are provided with the stop nut 313 of spiro union in roll adjustment bolt 312 outside, can finely tune the mounted position of sealing body 21 left through roll adjustment device 31, make things convenient for the installation of equipment.

The pump shaft 4 is connected with the main shaft of the driving motor 5 through a coupling 32, and the coupling is used for preventing the coupled machine element from bearing excessive load and playing a role in overload protection.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A two-stage impurity pump is characterized by comprising a base (1), wherein a pump main body (2) is transversely arranged on one side of the upper end of the base (1) through a bracket (24), a driving motor (5) connected with a pump shaft (4) of the pump main body (2) is transversely arranged on the other side of the upper end of the base (1) through a support (3), and a sealing body (21) and a conveying body (22) are sequentially arranged on the pump main body (2) from right to left;

the conveying body (22) comprises a first-stage volute (6) and a second-stage volute (7) which are sequentially connected from right to left, one end of the pump shaft (4) far away from the driving motor (5) sequentially penetrates through the sealing body (21), the first-stage volute (6) and the second-stage volute (7) from right to left, and a first-stage impeller (11) and a second-stage impeller (12) are respectively sleeved in the shell cavities of the first-stage volute (6) and the second-stage volute (7) of the pump shaft (4), a secondary feed pipe (8) communicated with the shell cavity is arranged on the left side of the secondary volute (7), the front side of the first-stage volute (6) is provided with a first-stage feeding pipe (9) communicated with the shell cavity of the first-stage volute, the front side of the conveying body (22) is located between the first-stage feeding pipe (9) and the second-stage feeding pipe (8) and is vertically provided with a discharging pipe (10) communicated with a shell cavity of the first-stage volute (6) and a shell cavity of the second-stage volute (7).

2. The dual stage impurity pump of claim 1, wherein: the primary volute (6) comprises a left volute cavity (61) and a right volute cavity (62) which are communicated with each other, and a primary impeller (11) is sleeved on a pump shaft (4) in the left volute cavity (61).

3. The dual stage impurity pump of claim 2, wherein: the right side of right worm-case chamber (62) is equipped with oil cup closing cap (13) of suit on pump shaft (4), the right side wall of right worm-case chamber (62) forms supplementary transport seal chamber (14) with oil cup closing cap (13) left side wall, this supplementary transport seal chamber (14) are the little big conical structure of right-hand member of left end and are provided with in supplementary transport seal chamber (14) and suit auxiliary impeller (15) on pump shaft (4), supplementary transport seal chamber (14) and discharging pipe (10) intercommunication.

4. The dual stage impurity pump of claim 3, wherein: the upside of oil cup closing cap (13) is equipped with oil cup (17) that the slope was arranged, the holding intracavity between the inboard of oil cup closing cap (13) and pump shaft (4) outside has set gradually axle sleeve (18) and sponge packing (19) from inside to outside, be equipped with water seal ring (20) on sponge packing (19), the inboard cartridge in holding chamber right side has the sealed lid (34) of packing that offsets with the right side of sponge packing (19).

5. The dual stage impurity pump of claim 4, wherein: and a check ring (33) and a water throwing ring (23) which are sleeved on the pump shaft (4) are sequentially arranged between the right side of the shaft sleeve (18) and the left side of the sealing body (21) from left to right.

6. The dual stage impurity pump of claim 1, wherein: bracket (24), oil cup closing cap (13), one-level spiral case (6) are through passing left side, oil cup closing cap (13) downside of bracket (24) from right to left in proper order and fixing first bolt (25) fixed connection at one-level spiral case (6) downside, oil cup closing cap (13), one-level spiral case (6) are through passing oil cup closing cap (13) upside and second bolt (26) fixed connection of one-level spiral case (6) downside from right to left in proper order.

7. The dual stage impurity pump of claim 1, wherein: the sealing body (21) includes casing (211), both ends are provided with left gland (212) and right gland (213) respectively about casing (211), left gland (212) and right gland (213) form the shell chamber of sealing body (21) together, pump shaft (4) are passed sealing body (21) shell chamber from the right left side, the left side in sealing body (21) shell chamber is equipped with first bearing (27) of suit in pump shaft (4) outside, the right side in sealing body (21) shell chamber is equipped with two suit in the outside second bearing (28) of suit in pump shaft (4) of back to back installation, the right side of sealing body (21) is provided with adapter sleeve (16) of suit in pump shaft (4) outside.

8. The dual stage impurity pump of claim 7, wherein: the upside in casing (211) middle part is equipped with oil cover (29), oil degree deep chi (30) are installed to the upper shed of oil cover (29).

9. The dual stage impurity pump of claim 7, wherein: bracket (24) are including vertical left leg (241) and the right leg (242) that sets up in its left and right sides, link to each other through roll adjustment device (31) between the front side of casing (211) and right leg (242), roll adjustment device (31) are including adjusting block (311), roll adjustment bolt (312), stop nut (313), the front side at casing (211) is fixed in adjusting block (311), the front side of adjusting block (311) is provided with connecting plate (314), roll adjustment bolt (312) is passed right leg (242) and connecting plate (314) from the right left side in proper order, the left and right sides of connecting plate (314) and the left side of right leg (242) all are provided with the stop nut (313) of spiro union in roll adjustment bolt (312) outside.

10. The dual stage impurity pump of claim 1, wherein: the pump shaft (4) is connected with a main shaft of the driving motor (5) through a coupling (32).