CN210738825U

CN210738825U - High-efficient multistage pump

Info

Publication number: CN210738825U
Application number: CN201921665392.8U
Authority: CN
Inventors: 周统富; 肖恢芳; 周平利; 万杰
Original assignee: Dongguan Weijin Electric Co Ltd
Current assignee: Dongguan Weijin Electric Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-12
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a high-efficient multistage pump, including motor cooler, motor and fixing base, the motor cooler lower extreme has through the screw connection the motor, be provided with the terminal box on the motor lateral wall, the motor lower extreme is pegged graft and is had the fixing base, fixing base lower extreme middle part is provided with the shaft coupling, the terminal box with the motor passes through the screw connection, the motor with the shaft coupling passes through the key-type connection. Has the advantages that: the utility model discloses a set up the motor cooler, can carry out cooling to the motor of multistage pump when the operation, improve the work efficiency of multistage pump motor when the operation.

Description

High-efficient multistage pump

Technical Field

The utility model relates to a multistage pump technical field, concretely relates to high-efficient multistage pump.

Background

The multi-stage pump is a centrifugal pump combining a water inlet section, a water outlet section and a middle section through a pull rod, the output water pressure of the multi-stage pump can be very high, the centrifugal force is obtained by the rotation of an impeller, materials are conveyed, and when the gas density reaches the working range of the mechanical vacuum pump, the gas density is pumped out, so that high vacuum is gradually obtained.

At present, the current multistage pump mostly adopts the structural style of single motor, and the motor will drive a plurality of impellers when operating, causes the big temperature of motor load high, influences the work efficiency of motor when operating, and secondly current multistage pump is when high-speed operation, and easy rotational friction produces the high temperature between bearing and the pivot, causes the multistage pump to present the trouble, can not satisfy the problem of multistage pump user demand.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the high-efficiency multistage pump is provided, and the problems that the load of a motor is large, the temperature is high and the working efficiency of the motor in operation is influenced due to the existing multistage pump are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a high-efficient multistage pump, including motor cooler, motor and fixing base, the motor cooler lower extreme has through the screw connection the motor, be provided with the terminal box on the motor lateral wall, the motor lower extreme is pegged graft and is had the fixing base, the number of fixing base is two, fixing base lower extreme middle part is provided with the shaft coupling, the terminal box with the motor passes through the screw connection, the motor with the shaft coupling passes through the key-type connection.

Further, the shaft coupling outside is provided with the sleeve pipe, the shaft coupling lower extreme has the pivot through the key-type connection, pivot below middle part is provided with the pump body, the pump body with be provided with connecting bolt between the fixing base, the upper side is provided with high temperature resistant bearing in the pump body, high temperature resistant bearing below is provided with the seal ring, seal ring below one side is provided with the filter screen, filter screen one side is provided with the inlet tube, the pivot periphery all is provided with the impeller, the number of impeller is six, impeller below one side is provided with the outlet pipe, the impeller below is provided with seal ring two, pivot lower extreme interference is connected with the bearing.

By adopting the technical scheme, the multistage pump can generate high-efficiency water yield during operation, the friction temperature between the rotating shaft and the high-temperature-resistant bearing is relieved, and the working efficiency of the multistage pump is improved.

Further, bearing bottom interference is connected with the base, both ends all are provided with the fixed plate about the pump body outside, the number of fixed plate is eight, there is tie bolt through threaded connection between the fixed plate, tie bolt's number is four, the tie bolt middle part is rotated and is connected with splint, the number of splint is four, be provided with the urceolus between the splint.

By adopting the technical scheme, the vacuum pressure generated by the multistage pump during operation can be enabled, and the spraying distance of the multistage pump is increased.

Further, the fixing seat and the pump body are in lap joint with the sleeve, and the rotating shaft is rotatably connected with the pump body.

Through adopting above-mentioned technical scheme, through the sleeve pipe can prevent the shaft coupling gets into dust or impurity when rotating, influences the rotational efficiency of motor.

Further, the pump body with high temperature resistant bearing rotates to be connected, the pivot with high temperature resistant bearing rotates to be connected, the inlet tube and the outlet pipe all with the pump body welding.

Through adopting above-mentioned technical scheme, through high temperature resistant bearing can effectively alleviate the pivot with running friction's temperature between the high temperature resistant bearing avoids the high temperature that the pivot produced when rotating improves the work efficiency of motor.

Furthermore, the first water stop ring and the second water stop ring are connected with the rotating shaft in a rotating and sealing mode, the impeller is connected with the rotating shaft in a rotating mode, and the filter screen is connected with the water inlet pipe through screws.

Through adopting above-mentioned technical scheme, through the filter screen can prevent effectively that the impurity of end of intaking from flowing into cause in the pump body the impeller wearing and tearing, seal ring one and seal ring two can prevent effectively leak appears in the pump body both ends, keep the internal water pressure of going out of pump.

Further, the fixed plate is welded with the pump body, the pump body is welded with the base, and the outer barrel is connected with the pump body through bolts.

Through adopting above-mentioned technical scheme for it is more firm to make tension bolt both ends are fixed, prevent that the vacuum pressure that the pump body produced when moving from dismantling it, through the base can make the pump body is steadily fixed, the urceolus is used for in the pump body the vacuum pressure that the impeller rotated the production circulates back and forth, strengthens the play water pressure of outlet pipe.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. for solving the structural style that current multistage pump majority adopted single motor, the motor will drive a plurality of impellers when the operation, causes the big temperature of motor load to be high, influences the problem of motor work efficiency when the operation, the utility model discloses a set up the motor cooler, can carry out cooling to the motor of multistage pump when the operation, improve the work efficiency of multistage pump motor when the operation.

2. For solving current multistage pump when high-speed operation, easy rotational friction produces high temperature between bearing and the pivot, causes multistage pump to appear the trouble, can not satisfy multistage pump user demand's problem, the utility model discloses a set up high temperature resistant friction bearing, can effectively alleviate the high temperature that produces with the pivot friction when rotating, satisfy multistage pump's user demand.

Drawings

FIG. 1 is a front cross-sectional view of a high efficiency multistage pump according to the present invention;

FIG. 2 is a front view of a high efficiency multistage pump according to the present invention;

fig. 3 is a top view of a high efficiency multistage pump according to the present invention.

The reference numerals are explained below:

1. a motor cooler; 2. a motor; 3. a junction box; 4. a fixed seat; 5. a coupling; 6. a sleeve; 7. a rotating shaft; 8. a pump body; 9. a connecting bolt; 10. a high temperature resistant bearing; 11. a first water stop ring; 12. a filter screen; 13. a water inlet pipe; 14. an impeller; 15. a water outlet pipe; 16. a second water stop ring; 17. a bearing; 18. a base; 19. a fixing plate; 20. tightening the bolts; 21. a splint; 22. an outer cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the high-efficiency multistage pump in this embodiment comprises a motor cooler 1, a motor 2 and a fixing seat 4, the lower end of the motor cooler 1 is connected with the motor 2 through a screw, the motor cooler 1 has a model number TL, the motor cooler 1 is a main heat exchange component of the motor 2 and is an important product for maintaining the operation of the motor 2, and directly affects the temperature rise, the output power and the service life of the motor 2, a terminal box 3 is arranged on one side wall of the motor 2, the fixing seat 4 is inserted at the lower end of the motor 2, the number of the fixing seats 4 is two, a coupler 5 is arranged in the middle of the lower end of the fixing seat 4, the terminal box 3 is connected with the motor 2 through a screw, the motor 2 is connected with the coupler 5 through a key, a sleeve 6 is arranged on the outer side of the coupler 5, the lower end of the coupler 5 is connected with a rotating, a high-temperature-resistant bearing 10 is arranged above the inside of the pump body 8, a first water stop ring 11 is arranged below the high-temperature-resistant bearing 10, a filter screen 12 is arranged on one side below the first water stop ring 11, a water inlet pipe 13 is arranged on one side of the filter screen 12, impellers 14 are arranged on the periphery of the rotating shaft 7, the number of the impellers 14 is six, a water outlet pipe 15 is arranged on one side below the impellers 14, a second water stop ring 16 is arranged below the impellers 14, a bearing 17 is connected to the lower end of the rotating shaft 7 in an interference manner, so that the multi-stage pump can generate high-efficiency water output during operation, the friction temperature between the rotating shaft 7 and the high-temperature-resistant bearing 10 is relieved, the working efficiency of the pump is improved, a base 18 is connected to the bottom end of the bearing 17 in an interference manner, fixing plates 19 are arranged at the upper end and the lower end, the number of the clamping plates 21 is four, the outer cylinder 22 is arranged between the clamping plates 21, the vacuum pressure generated by the multi-stage pump in operation can prevent the pump body 8 from being disassembled by the vacuum pressure, the spraying distance of the multi-stage pump is increased, the fixed seat 4 and the pump body 8 are both lapped with the sleeve 6, the rotating shaft 7 is rotatably connected with the pump body 8, the shaft coupling 5 can be prevented from entering dust or impurities in rotation through the sleeve 6, the driving efficiency of the motor 2 is influenced, the pump body 8 is rotatably connected with the high temperature resistant bearing 10, the rotating shaft 7 is rotatably connected with the high temperature resistant bearing 10, the water inlet pipe 13 and the water outlet pipe 15 are both welded with the pump body 8, the temperature of the rotating friction between the rotating shaft 7 and the high temperature resistant bearing 10 can be effectively relieved through the high temperature resistant bearing 10, the high temperature generated in rotation of the rotating shaft 7 is avoided, the motor 2 is prevented, impeller 14 rotates with pivot 7 to be connected, filter screen 12 passes through bolted connection with inlet tube 13, can prevent effectively through filter screen 12 that the impurity of end of intaking from causing impeller 14 wearing and tearing in flowing into the pump body 8, seal ring one 11 and seal ring two 16 can prevent effectively that both ends from leaking in the pump body 8, keep the play water pressure in the pump body 8, fixed plate 19 welds with the pump body 8, it is more firm to make tensioning bolt 20 both ends fixed, prevent that the vacuum pressure that produces from dismantling it when the pump body 8 operates from dismantling it, the pump body 8 welds with base 18, urceolus 22 passes through bolted connection with the pump body 8, can make the pump body 8 steadily fixed through base 18, urceolus 22 is used for the pump body 8 in the vacuum pressure that impeller 14 rotated the production to make a round trip to circulate, strengthen the play water pressure.

As shown in fig. 1-3, in this embodiment, a motor 2 is connected to a lower end of the motor cooler 1 through a screw, and a terminal box 3 is disposed on a side wall of the motor 2, so that the motor 2 of the multi-stage pump can be cooled during operation, and the working efficiency of the motor 2 of the multi-stage pump during operation is improved.

As shown in fig. 1, in this embodiment, the rotating shaft 7 is rotatably connected to the high temperature resistant bearing 10, so that high temperature generated by friction with the rotating shaft 7 during rotation can be effectively relieved, and the use requirement of the multistage pump is met.

The specific implementation process of this embodiment is as follows: a base 18 of a multistage pump is fixed on the ground of a designated area through an expansion bolt, a power supply is switched on, a water inlet pipe 13 on a pump body 8 is connected with a water inlet, a motor 2 is started, a rotating shaft 7 is driven through a coupler 5, the rotating shaft 7 rotates an impeller 14 to start pumping, a water source firstly passes through a filter screen 12 to filter out impurities and particles in the water source and then flows into the impeller 14 in the middle section of the pump body 8, vacuum gas generated by high-speed rotation of the impeller 14 enters an outer cylinder 22 outside the pump body 8 to circulate up and down, generated vacuum pressure is dissolved in water and finally circulates to a water outlet pipe 15 to be discharged outwards, at the moment, a large amount of vacuum pressure exists in the water and can be discharged far away directly, the rotating shaft 7 receives the influence of the pressure and the vacuum pressure in the water during operation, high temperature is easily generated by friction, a high-temperature-resistant bearing, motor cooler 1 can cool down to motor 2 inside at any time in addition to this keeps the multistage pump can normal operating, and this multistage pump can high-efficient operation, can cool down when the operation to motor 2 of multistage pump, improves the work efficiency of multistage pump motor 2 when the operation, secondly can effectively alleviate the high temperature that produces with pivot 7 friction when rotating, satisfies the user demand of multistage pump.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. An efficient multistage pump characterized by: including motor cooler (1), motor (2) and fixing base (4), motor cooler (1) lower extreme has through the screw connection motor (2), be provided with terminal box (3) on motor (2) lateral wall, motor (2) lower extreme is pegged graft and is had fixing base (4), fixing base (4) lower extreme middle part is provided with shaft coupling (5), terminal box (3) with motor (2) pass through the screw connection, motor (2) with shaft coupling (5) pass through the key-type connection.

2. A high efficiency multistage pump according to claim 1, wherein: a sleeve (6) is arranged on the outer side of the coupler (5), the lower end of the coupler (5) is connected with a rotating shaft (7) through a key, a pump body (8) is arranged in the middle of the lower part of the rotating shaft (7), a connecting bolt (9) is arranged between the pump body (8) and the fixed seat (4), a high-temperature resistant bearing (10) is arranged at the upper part in the pump body (8), a first water stop ring (11) is arranged below the high-temperature resistant bearing (10), a filter screen (12) is arranged on one side below the first water stop ring (11), a water inlet pipe (13) is arranged on one side of the filter screen (12), impellers (14) are arranged on the periphery of the rotating shaft (7), the number of the impellers (14) is six, a water outlet pipe (15) is arranged on one side below the impeller (14), a water stop ring II (16) is arranged below the impeller (14), and a bearing (17) is connected to the lower end of the rotating shaft (7) in an interference manner.

3. A high efficiency multistage pump according to claim 2, wherein: bearing (17) bottom interference is connected with base (18), both ends all are provided with fixed plate (19) about pump body (8) outside, the number of fixed plate (19) is eight, there are tie bolt (20) through threaded connection between fixed plate (19), the number of tie bolt (20) is four, tie bolt (20) middle part is rotated and is connected with splint (21), the number of splint (21) is four, be provided with urceolus (22) between splint (21).

4. A high efficiency multistage pump according to claim 2, wherein: the fixing seat (4) and the pump body (8) are in lap joint with the sleeve (6), and the rotating shaft (7) is rotatably connected with the pump body (8).

5. A high efficiency multistage pump according to claim 2, wherein: the pump body (8) with high temperature resistant bearing (10) rotate to be connected, pivot (7) with high temperature resistant bearing (10) rotate to be connected, inlet tube (13) and outlet pipe (15) all with pump body (8) welding.

6. A high efficiency multistage pump according to claim 2, wherein: the first water stop ring (11) and the second water stop ring (16) are connected with the rotating shaft (7) in a rotating and sealing mode, the impeller (14) is connected with the rotating shaft (7) in a rotating mode, and the filter screen (12) is connected with the water inlet pipe (13) through screws.

7. A high efficiency multistage pump according to claim 3, wherein: the fixed plate (19) is welded with the pump body (8), the pump body (8) is welded with the base (18), and the outer cylinder (22) is connected with the pump body (8) through bolts.