CN209818294U

CN209818294U - Direct-connected sliding vane pump

Info

Publication number: CN209818294U
Application number: CN201920649645.6U
Authority: CN
Inventors: 张风荣
Original assignee: Harbin Kaiquan Pump Co Ltd
Current assignee: Harbin Kaiquan Pump Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2019-12-20
Anticipated expiration: 2029-05-07

Abstract

A direct-connected sliding vane pump. The utility model relates to a pump technical field. The utility model discloses a solve current gleitbretter pump life low, the poor problem of moving stability. The utility model discloses a pump body, shaft coupling and explosion proof machine, the pump body includes the pump case, the endotheca, the main shaft, the rotor, the export flange is taken over, entry flange is taken over and a plurality of gleitbretter, explosion proof machine's output passes through the coupling joint with the input of main shaft, the rotor is equipped with admittedly at the middle part of main shaft, be equipped with a plurality of slots along the circumferencial direction equipartition on the outer circumference lateral wall of rotor, the cartridge has a gleitbretter respectively in every slot, the outside cover of rotor is equipped with the endotheca, endotheca and rotor eccentric settings, be equipped with between endotheca and the pump case and inhale the chamber and tell the chamber. The utility model is used for the liquefied petroleum system.

Description

Direct-connected sliding vane pump

Technical Field

The utility model relates to a pump technical field, concretely relates to direct-connected sliding vane pump.

Background

The sliding vane pump is one rotary pump with eccentric rotor inside the pump casing and sliding vanes inside the rotor, and the rotor has two adjacent sliding vanes to form the work volume to convey liquid or pressurize. Because of the strong self-absorption capability, the self-absorption self-. The existing sliding vane pump is usually connected with a pump body through an explosion-proof motor through a belt, the influence of the belt is caused in the using process, the performance of the pump is limited, on one hand, the service life of the pump is short due to the short service life of the belt, and on the other hand, the belt is easy to slip, so that the stability of the operation of the pump body is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve current sliding vane pump life low, the poor problem of moving stability, and then provide a direct-connected sliding vane pump.

The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be: the utility model comprises a pump body, a shaft coupling and an explosion-proof motor, the pump body comprises a pump shell, an inner sleeve, a main shaft, a rotor, an outlet flange connecting pipe, an inlet flange connecting pipe and a plurality of slip sheets, the output end of the explosion-proof motor is connected with the input end of the main shaft through the shaft coupling, the middle part of the main shaft is fixedly provided with the rotor, a plurality of slots are uniformly distributed on the outer circumferential side wall of the rotor along the circumferential direction, the slots are arranged along the radial direction, a slip sheet is respectively inserted in each slot, the outer side of the rotor is sleeved with the inner sleeve, the inner sleeve and the rotor are eccentrically arranged, the inner sleeve is fixedly arranged in the pump shell, a plurality of through grooves are arranged on the side wall of the inner sleeve along the circumferential direction, a suction cavity and a discharge cavity are arranged between the inner sleeve and the pump shell, the pump shell, the outer side of the side plate is provided with a bearing, the side plate and the bearing are sleeved on the main shaft, two ends of the pump shell are fixedly connected with end covers respectively, a bearing seat is arranged between the bearing and the end covers, the input end of the main shaft is sleeved with a hole cover, the other end of the main shaft is provided with a blind hole cover, and the hole cover and the blind hole cover are fixedly connected with the end faces of the end covers respectively.

The utility model has the advantages that:

the utility model discloses well explosion-proof machine adopts the mode of directly linking with the pump body to be connected, and the stability of pump body operation performance can improve 80%, and life is high, and the volumetric efficiency of gleitbretter pump is high simultaneously, and the operation precision is high, and the pump body is taken in and is taken out the ability reinforce, but the wide application is in the liquefied petroleum system, controls the pump through the converter, can realize the intelligent data ization transportation of liquefied petroleum.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front cross-sectional view of the pump body of the present invention;

fig. 4 is a right side sectional view of the middle pump body of the present invention.

Detailed Description

The first embodiment is as follows: with reference to fig. 1 to 4, the direct-coupled sliding vane pump of the present embodiment includes a pump body, a coupler 19, and an explosion-proof motor 20, the pump body includes a pump casing 1, an inner sleeve 2, a main shaft 3, a rotor 4, an outlet flange adapter 17, an inlet flange adapter 18, and a plurality of sliding vanes 5, an output end of the explosion-proof motor 20 is connected to an input end of the main shaft 3 through the coupler 19, the rotor 4 is fixedly mounted in the middle of the main shaft 3, a plurality of slots 4-1 are uniformly distributed on a sidewall of an outer circumference of the rotor 4 along a circumferential direction, the slots 4-1 are arranged along a radial direction, a sliding vane 5 is respectively inserted into each slot 4-1, the inner sleeve 2 is sleeved on an outer side of the rotor 4, the inner sleeve 2 and the rotor 4 are eccentrically arranged, the inner sleeve 2 is fixedly mounted in the pump casing 1, a plurality of through slots 2-1 are arranged on a sidewall of the, an inlet flanged connection pipe 18 and an outlet flanged connection pipe 17 are connected to the pump shell 1, the inlet flanged connection pipe 18 is communicated with the suction cavity 21, the outlet flanged connection pipe 17 is communicated with the discharge cavity 22, side plates 6 are respectively arranged at two ends of the rotor 4, a bearing 23 is arranged on the outer side of each side plate 6, the side plates 6 and the bearing 23 are both sleeved on the main shaft 3, end covers 7 are respectively and fixedly connected to two ends of the pump shell 1, a bearing seat 8 is arranged between each bearing 23 and each end cover 7, a hole cover 9 is sleeved at the input end of the main shaft 3, a blind hole cover 10 is arranged at the other end of the main shaft 3, and the hole cover 9 and.

In the embodiment, the explosion-proof motor 20 is started to operate, the explosion-proof motor 20 drives the main shaft 3 to rotate, the main shaft 3 drives the rotor 4 to rotate in the inner sleeve 2, the inner sleeve 2 and the rotor 4 are eccentrically arranged, one side of the outer circumferential side wall of the rotor 4 is contacted with the inner circumferential side wall of the inner sleeve 2, a gap is formed between the other side of the outer circumferential side wall of the rotor 4 and the inner circumferential side wall of the inner sleeve 2, the rotor 4 throws out a plurality of sliding pieces 5 in the rotating process, liquid enters the suction cavity 21 in the pump shell 1 from the inlet flange joint pipe 18, the rotor 4 sucks the liquid from the suction cavity 21 to one side of the inner sleeve 2 through the through groove 2-1 on the inner sleeve 2 when rotating, the sliding pieces 5 transfer the liquid to the other side of the inner sleeve 2, then the liquid enters the discharge cavity 22 through the through groove 2-1 and enters the outlet flange joint pipe 17 through the discharge cavity, liquid is drawn in from inlet flange 17 and discharged from outlet flange 18.

The second embodiment is as follows: as described with reference to fig. 1 to 4, a mechanical seal mechanism 11 is further provided between the bearing housing 8 and the side plate 6 according to the present embodiment. Other components and connection modes are the same as those of the first embodiment.

In this embodiment, the mechanical sealing mechanism 11 includes a spring seat, a moving ring and a stationary ring, wherein the spring seat is formed by combining a tray, a positioning sleeve, a gasket, a spring and an outer sleeve, the moving ring is made of cemented carbide, the stationary ring is made of graphite impregnated with phenolic resin, and the mechanical sealing mechanism 11 has stable and reliable sealing performance and long service life.

The third concrete implementation mode: as described with reference to fig. 1 to 4, the direct-coupled sliding vane pump according to the present embodiment further includes a safety valve provided on the pump housing 1, and the safety valve is provided between the suction chamber 21 and the discharge chamber 22. Other components and connection modes are the same as those of the second embodiment.

The design is used for adjusting the pressure between the suction cavity 21 and the discharge cavity 22, protecting a pipeline system and ensuring the normal operation and the service life of the pump.

The fourth concrete implementation mode: as described with reference to fig. 1 to 4, the safety valve of the present embodiment includes a valve cap 12, a spring 13, an adjusting plug 14, an adjusting screw 15, and a gland 16, the valve cap 12 is clamped in the pump housing 1, the valve cap 12 is located between the suction chamber 21 and the discharge chamber 22, the gland 16 is fixed to the pump housing 1, the adjusting screw 15 is screwed to the gland 16, the adjusting plug 14 is fixed to the end of the adjusting screw 15, the adjusting plug 14 is disposed opposite to the valve cap 12, and the spring 13 is disposed between the adjusting plug 14 and the valve cap 12. Other components and connection modes are the same as those of the third embodiment.

When the pressure of the outlet pipeline system of the outlet flanged connection pipe 18 exceeds the regulated rated pressure of the safety valve, the safety valve can be automatically opened, so that liquid circulates in the pump shell 1, the effect of protecting the safety of the pipeline system is achieved, the pump can normally operate, and the service life of the pump can be prolonged.

In the embodiment, the adjusting screw 15 is adjusted to set the rated pressure, the adjusting screw 15 drives the adjusting plug 14 to move, so that the distance between the adjusting plug 14 and the valve cover 12 is adjusted to adjust the elastic force of the spring 13, when the pressure of the pump body is greater than the rated pressure, the pressure of liquid is greater than the elastic force of the spring 13, the valve cover 12 compresses the spring 13, the valve cover 12 moves towards the gland 16 under the action of hydraulic pressure, the suction cavity 21 is communicated with the discharge cavity 22, and the liquid circulates in the pump; when the liquid pressure is lower than the rated pressure, the pressure of the liquid is lower than the elastic force of the spring 13, the valve cover 12 is pressed against the pump shell 1 under the action of the elastic force of the spring 13, the suction cavity 21 and the discharge cavity 22 are separated by the valve cover 12, and the pump body operates normally.

The rated pressure of the safety valve is usually adjusted to 0.6-0.7 MPa.

The fifth concrete implementation mode: as described with reference to fig. 1 to 4, a gap is provided between the rotor 4 and the two side plates 6 according to the present embodiment. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment.

By the design, in the running process of the pump body, the gap between the rotor 4 and the two side plates 6 can be automatically and uniformly adjusted, and the end surfaces of the two side plates 6 can be turned over for continuous use if worn.

The sixth specific implementation mode: as described with reference to fig. 1 to 4, the pump housing 1 of the present embodiment is provided with support legs 24 at the lower end thereof. The other components and the connection mode are the same as the fifth embodiment mode.

The seventh embodiment: as described with reference to fig. 1 to 4, the pump body and the explosion-proof motor 20 according to the present embodiment are provided with a mounting plate 25 at the lower end thereof, and the pump body and the explosion-proof motor 20 are fixedly connected to the upper end surface of the mounting plate 25. Other components and connection modes are the same as those of the sixth embodiment.

The specific implementation mode is eight: as described with reference to fig. 1 to 4, a seal ring 26 is provided between the perforated cover 9 and the spindle 3 according to the present embodiment. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the sixth embodiment or the seventh embodiment.

In the embodiment, in order to ensure the overall sealing performance of the pump body, sealing rings are respectively arranged between the inlet flange connecting pipe 18 and the pump shell 1, between the outlet flange connecting pipe 17 and the pump shell 1, between the bearing seat 8 and the end cover 7, and between the end cover 7 and the pump shell 1.

The specific implementation method nine: as described with reference to fig. 1 to 4, the outlet flange 17 of the present embodiment is vertically disposed at the upper end of the pump housing 1, and the inlet flange 18 is horizontally disposed at one side of the pump housing 1. The other components and connection modes are the same as those of the eighth embodiment.

In the present embodiment, the suction chamber 21 is disposed at the lower portion of the pump housing 1 and near the inlet flange joint 18, the discharge chamber 22 is disposed at the upper portion of the pump housing 1, one division point of the two chambers is located between the inlet flange joint 18 and the outlet flange joint 17 of the pump housing 1, and the two division points are disposed opposite to each other.

The detailed implementation mode is ten: referring to fig. 1 to 4, the number of the sliders 5 in the present embodiment is 10. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the sixth embodiment, the seventh embodiment or the ninth embodiment.

In the present embodiment, the slide 5 is a slide made of plastic.

Claims

1. The utility model provides a direct-connected sliding vane pump which characterized in that: the direct-connected sliding vane pump comprises a pump body, a coupler (19) and an explosion-proof motor (20), wherein the pump body comprises a pump shell (1), an inner sleeve (2), a main shaft (3), a rotor (4), an outlet flange connecting pipe (17), an inlet flange connecting pipe (18) and a plurality of sliding vanes (5), the output end of the explosion-proof motor (20) is connected with the input end of the main shaft (3) through the coupler (19), the rotor (4) is fixedly arranged in the middle of the main shaft (3), a plurality of slots (4-1) are uniformly distributed on the outer circumferential side wall of the rotor (4) along the circumferential direction, the slots (4-1) are arranged along the radial direction, one sliding vane (5) is respectively inserted in each slot (4-1), the inner sleeve (2) is sleeved on the outer side of the rotor (4), the inner sleeve (2) and the rotor (4) are eccentrically arranged, the inner, a plurality of through grooves (2-1) are formed in the side wall of the inner sleeve (2) along the circumferential direction, a suction cavity (21) and a discharge cavity (22) are formed between the inner sleeve (2) and the pump shell (1), an inlet flange connecting pipe (18) and an outlet flange connecting pipe (17) are connected to the pump shell (1), the inlet flange connecting pipe (18) is communicated with the suction cavity (21), the outlet flange connecting pipe (17) is communicated with the discharge cavity (22), side plates (6) are respectively arranged at two ends of the rotor (4), a bearing (23) is arranged on the outer side of each side plate (6), the side plates (6) and the bearing (23) are respectively sleeved on the main shaft (3), end covers (7) are fixedly connected to two ends of the pump shell (1) respectively, a bearing seat (8) is arranged between each bearing (23) and the end cover (7), a hole cover (9) is sleeved at the input end of the main shaft (3, the perforated cover (9) and the blind hole cover (10) are respectively fixedly connected with the end face of the end cover (7).

2. Direct-coupled sliding vane pump according to claim 1, characterized in that: and a mechanical sealing mechanism (11) is also arranged between the bearing seat (8) and the side plate (6).

3. Direct-coupled sliding vane pump according to claim 2, characterized in that: the direct-connected sliding vane pump further comprises a safety valve, wherein the safety valve is arranged on the pump shell (1) and is arranged between the suction cavity (21) and the discharge cavity (22).

4. A direct-coupled sliding vane pump according to claim 3, characterized in that: the safety valve comprises a valve cover (12), a spring (13), an adjusting plug (14), an adjusting screw (15) and a gland (16), wherein the valve cover (12) is clamped in a pump shell (1), the valve cover (12) is located between a suction cavity (21) and a discharge cavity (22), the gland (16) is fixedly connected to the pump shell (1), the adjusting screw (15) is rotatably arranged on the gland (16), the adjusting plug (14) is fixedly connected to the tail end of the adjusting screw (15), the adjusting plug (14) and the valve cover (12) are arranged oppositely, and the spring (13) is arranged between the adjusting plug (14) and the valve cover (12).

5. A direct coupled sliding vane pump according to claim 1, 2, 3 or 4, characterized in that: and a gap is arranged between the rotor (4) and the two side plates (6).

6. Direct-coupled sliding vane pump according to claim 5, characterized in that: the lower end of the pump shell (1) is symmetrically provided with support legs (24).

7. Direct-coupled sliding vane pump according to claim 6, characterized in that: the pump body and the lower extreme of explosion-proof machine (20) are equipped with mounting panel (25), and the pump body and explosion-proof machine (20) rigid coupling are on the up end of mounting panel (25).

8. A direct coupled sliding vane pump according to claim 1, 2, 3, 4, 6 or 7, wherein: and a sealing ring (26) is arranged between the perforated cover (9) and the main shaft (3).

9. Direct-coupled sliding vane pump according to claim 8, characterized in that: the outlet flanged connection pipe (17) is vertically arranged at the upper end of the pump shell (1), and the inlet flanged connection pipe (18) is horizontally arranged at one side of the pump shell (1).

10. A direct coupled sliding vane pump according to claim 1, 2, 3, 4, 6, 7 or 9, characterized in that: the number of the sliding pieces (5) is 10.