CN214247664U

CN214247664U - Shaft seal assembly and pressure plate material pumping device

Info

Publication number: CN214247664U
Application number: CN202023055166.3U
Authority: CN
Inventors: 庞春丽; 李阳; 李超群; 杨耀峰; 张德学
Original assignee: Guangdong Standard Fluid Systems Co ltd
Current assignee: Guangdong Standard Fluid Systems Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-09-21
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a shaft seal subassembly, include: the outer sleeve piece is internally provided with a first accommodating cavity; interior external member, its releasable connection be in the first intracavity that holds, be equipped with a plurality of annular on the outer peripheral face of interior external member, every all be equipped with first sealing washer on the annular, first sealing washer and the first inner wall butt that holds the chamber, it holds the chamber to be equipped with the second in the interior external member, the second hold the chamber with first chamber intercommunication that holds, the second holds the intracavity and is equipped with a plurality of second sealing washer. Compared with the prior art, when the sealing ring of the shaft seal assembly is damaged, the damaged sealing ring can be replaced only by detaching the inner sleeve without detaching the whole shaft seal assembly, so that later maintenance and repair of the screw pressing disc pump are facilitated; in addition, compared with the existing shaft sealing part, the shaft sealing assembly has more sealing rings and can bear higher pressure. And simultaneously, the utility model also provides an use the pressure disk of above-mentioned bearing seal subassembly to take out the material device.

Description

Shaft seal assembly and pressure plate material pumping device

Technical Field

The utility model relates to a screw pump technical field, in particular to material device is taken out to bearing seal subassembly and pressure disk.

Background

In chemical production, barreled high-viscosity materials are taken out and then transferred to other containers or conveyed to a production line, and the materials have high viscosity, so that a pressure disc pump is required to convey the materials. At present, a pressure plate pump is mainly divided into a plunger pressure plate pump and a screw pressure plate pump, and although the plunger pressure plate pump is lower in cost, the pressure and the suction volume of the plunger pressure plate pump are unstable, and the plunger pressure plate pump is easy to block a discharge port or discharge high-viscosity materials in a pulse mode; while the screw platen pump is more costly, it is gradually replacing the plunger platen pump due to its characteristics of smooth flow, small pressure pulses, low noise, high efficiency, long life, reliable operation, and insensitivity to the viscosity of the medium.

As shown in fig. 1, the material pumping device for the pressure plate in the existing screw pressure plate pump includes a pressure plate 1 connected to the outside of a suction chamber 2, a stator 3, a rotor 4, a universal joint 5, an intermediate shaft 6, a discharge chamber 7, a shaft seal 8 and a transmission mechanism 9 with a motor, wherein the motor can transmit power to the intermediate shaft, the universal joint and the rotor in sequence through the transmission mechanism to drive the rotor to rotate in the stator, so that a high-viscosity material in the suction chamber is pumped to the discharge chamber, and the shaft seal is used for separating the discharge chamber from the transmission mechanism to prevent the high-viscosity material from entering the motor and causing damage to the motor. At present, its structure of current shaft seal spare is the integral type, in case the damaged back of its inside sealing washer, then needs wholly to change, this later stage maintenance and the maintenance of screw rod pressure disk pump of being not convenient for.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a shaft seal assembly to solve one or more of the problems of the prior art and to provide at least one of the advantages of the present invention.

The utility model also provides a material device is taken out to pressure disk that has above-mentioned bearing seal subassembly.

According to the utility model discloses a bearing seal subassembly of first aspect embodiment includes:

the outer sleeve piece is internally provided with a first accommodating cavity;

interior external member, its releasable connection be in the first intracavity that holds, be equipped with a plurality of annular on the outer peripheral face of interior external member, every all be equipped with first sealing washer on the annular, first sealing washer and the first inner wall butt that holds the chamber, it holds the chamber to be equipped with the second in the interior external member, the second hold the chamber with first chamber intercommunication that holds, the second holds the intracavity and is equipped with a plurality of second sealing washer.

According to the utility model discloses bearing seal subassembly has following beneficial effect at least: compared with the prior art, when the sealing ring of the shaft seal assembly is damaged, the damaged sealing ring can be replaced only by detaching the inner sleeve without detaching the whole shaft seal assembly, so that later maintenance and repair of the screw pressing disc pump are facilitated; in addition, compared with the existing shaft sealing part, the shaft sealing assembly has more sealing rings and can bear higher pressure.

According to some embodiments of the utility model, the first intracavity that holds is equipped with spacing platform, the spacing butt of endotheca in spacing platform.

According to some embodiments of the utility model, be equipped with the spacing ring on the spacing platform, the internal member with be equipped with first bearing between the spacing ring, first bearing respectively with the internal member with the spacing ring carries out spacing butt.

According to some embodiments of the utility model, the first intracavity that holds still is equipped with the second bearing, the spacing butt of second bearing is in one side in addition of spacing ring.

According to some embodiments of the utility model, the one end of internal member is equipped with the draw-in groove, is equipped with the snap ring on the terminal surface of external sleeve spare, the snap ring joint in the draw-in groove.

According to some embodiments of the invention, the first sealing ring is an O-ring.

According to some embodiments of the invention, the second sealing ring is a Y-shaped sealing ring.

According to the utility model discloses a material device is taken out to pressure disk of second aspect embodiment, including actuating mechanism, drive mechanism and foretell bearing seal subassembly, drive mechanism with the actuating mechanism transmission is connected, the bearing seal unit mount be in drive mechanism with between the actuating mechanism.

According to the utility model discloses material device is taken out to pressure disk has following beneficial effect at least: the shaft seal assembly can effectively separate the actuating mechanism from the transmission mechanism, and avoids the damage to the motor caused by the material entering the motor of the transmission mechanism.

According to some embodiments of the utility model, drive mechanism includes motor and transmission shaft, the main shaft of motor with transmission shaft rigid connection, the transmission shaft runs through in proper order first chamber, the second of holding holds the chamber.

According to the utility model discloses a some embodiments, actuating mechanism includes suction chamber, stator, rotor, universal joint, jackshaft and discharge chamber, and the periphery of suction chamber is connected with the pressure disk, transmission shaft, jackshaft, universal joint, rotor connect gradually, discharge chamber, stator, suction chamber communicate in proper order, the rotor with the stator matches the use.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a platen pumping device of the prior art;

FIG. 2 is a schematic perspective view of a shaft seal assembly according to an embodiment of the present invention;

FIG. 3 is a bottom view of the shaft seal assembly shown in FIG. 2;

FIG. 4 is an exploded view of the shaft seal assembly shown in FIG. 2;

FIG. 5 is a cross-sectional view of the shaft seal assembly shown in FIG. 3 taken along section line A-A;

fig. 6 is a schematic structural diagram of a pressure plate pumping device according to the embodiment of the present invention.

In the drawings: 10-shaft seal assembly, 100-outer sleeve member, 200-inner sleeve member, 110-clamping portion, 120-first accommodating cavity, 210-annular groove, 211-first sealing ring, 121-limiting table, 220-clamping groove, 300-clamping ring, 230-second accommodating cavity, 400-second sealing ring, 231-step table, 410-gasket, 510-first bearing, 520-second bearing, 1211-limiting ring, 20-actuating mechanism, 30-transmission mechanism, 31-transmission shaft, 21-suction chamber, 22-stator, 23-rotor, 24-universal joint, 25-intermediate shaft, 26-discharge chamber and 27-pressure plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 2 to 5, the shaft seal assembly 10 according to the first aspect of the present invention includes an outer sleeve 100 and an inner sleeve 200, where the outer sleeve 100 and the inner sleeve 200 are both made of steel, one end of the outer sleeve 100 is provided with an outwardly extending clamping portion 110, and a first accommodating cavity 120 is provided in the outer sleeve 100; the internal member 200 sets up in the first chamber 120 that holds, be equipped with a plurality of annular 210 on the outer peripheral face of internal member 200, every all be equipped with first sealing washer 211 on the annular 210, first sealing washer 211 optionally is O type sealing washer, first sealing washer 211 and the first inner wall butt that holds chamber 120 make internal member 200 can seal the setting and be in outer sleeve 100. In order to better install the internal member 200, a limiting table 121 is arranged in the first accommodating cavity 120, one end of the internal member 200 is limited and abutted to the limiting table 121, a clamping groove 220 is arranged at the other end of the internal member 200, a clamping ring 300 is arranged on the end face of the clamping portion 110, and the clamping ring 300 is clamped in the clamping groove 220, so that the internal member 200 is detachably connected in the first accommodating cavity 120.

As shown in fig. 4 and 5, a second accommodating chamber 230 is provided in the inner sleeve 200, the second accommodating chamber 230 is communicated with the first accommodating chamber 120, and a plurality of second sealing rings 400 are provided in the second accommodating chamber 230. In order to better position the second sealing ring 400, a step 231 is provided in the second receiving chamber 230, and the step 231 is used to limit the second sealing ring 400, so that a user can place the second sealing ring 400 on the step 231 from the entrance limit of the second receiving chamber 230. Specifically, the number of the second seal rings 400 is three, the inner diameters of the three second seal rings 400 are the same, the second seal rings 400 may be selected as Y-shaped seal rings, the sealing directions of all the Y-shaped seal rings face the clamping groove 220, the outer diameter of one of the second seal rings 400 is smaller than the outer diameters of the other two second seal rings 400, the small-sized second seal ring 400 is placed on the inner layer of the step table 231, the two large-sized second seal rings 400 are stacked on the outer layer of the step table 231, and the two large-sized second seal rings 400 are separated by a gasket 410. It should be noted that, the present invention does not limit the number of the first sealing ring 211 and the second sealing ring 400, and the number of the first sealing ring 211 and the second sealing ring is not limited, and all belong to the protection scope of the present invention. Compared with the prior art, when the sealing ring of the shaft seal assembly 10 is damaged, the damaged sealing ring can be replaced by only disassembling the inner sleeve 200 without disassembling the whole shaft seal assembly 10, which is beneficial to later maintenance and repair of the screw pressure plate 27 pump; in addition, the shaft seal assembly 10 has a greater number of seal rings and can withstand higher pressures than prior shaft seals.

In some embodiments of the present invention, in order to enable the transmission mechanism 30 of the screw pressure plate 27 pump to be better connected with the shaft seal assembly 10, a first bearing 510 and a second bearing 520 are disposed in the first accommodating cavity 120, both the first bearing 510 and the second bearing 520 may be selected as deep groove ball bearings, and both the first bearing 510 and the second bearing 520 are used for matching with the transmission shaft 31 of the transmission mechanism 30; the limiting table 121 is provided with a limiting ring 1211, the inner diameter of the limiting ring 1211 is smaller than the inner diameter of the limiting table 121, the first bearing 510 is located between the inner sleeve 200 and the limiting ring 1211, the first bearing 510 is in limiting abutting connection with the inner sleeve 200 and the limiting ring 1211 respectively, and the second bearing 520 is in limiting abutting connection with the other side of the limiting ring 1211.

As shown in fig. 6, the pressure plate material pumping device according to the second aspect of the present invention includes the shaft seal assembly 10 according to the first aspect of the present invention, and further includes an actuating mechanism 20 and a transmission mechanism 30, wherein the shaft seal assembly 10 is installed between the transmission mechanism 30 and the actuating mechanism 20. Specifically, the actuator 20 and the transmission mechanism 30 are both of the prior art, wherein the transmission mechanism 30 includes a motor (not shown in the drawings) and a transmission shaft 31, a main shaft of the motor is rigidly connected to the transmission shaft 31, the transmission shaft 31 sequentially penetrates through the second bearing 520, the first bearing 510 and the second sealing ring 400, and extends to the outside of the outer sleeve 100, and at this time, the second sealing ring 400 is hermetically wrapped around the transmission shaft 31; the actuating mechanism 20 comprises a suction chamber 21, a stator 22, a rotor 23, a universal joint 24, an intermediate shaft 25 and a discharge chamber 26, a pressure plate 27 is connected to the periphery of the suction chamber 21, the transmission shaft 31, the intermediate shaft 25, the universal joint 24 and the rotor 23 are sequentially connected, the discharge chamber 26, the stator 22 and the suction chamber 21 are sequentially communicated, the universal joint 24 and the intermediate shaft 25 are both positioned in the discharge chamber 26, and the rotor 23 is matched with the stator 22 for use, so that a motor can sequentially transmit power to the intermediate shaft 25, the universal joint 24 and the rotor 23 through the transmission shaft 31 to drive the rotor 23 to rotate in the stator 22, and high-viscosity materials in the suction chamber 21 are pumped to the discharge chamber 26. Because the sealed parcel of bearing seal subassembly 10 has transmission shaft 31, consequently the high viscosity material in the discharge chamber 26 can't enter into the motor through the clearance, and because the utility model provides a second sealing washer 400 is Y type sealing washer, its sealed direction orientation discharge chamber 26, consequently the extrusion of the high viscosity material in the discharge chamber 26 during second sealing washer 400, the sealed effect of second sealing washer 400 can become better.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A shaft seal assembly, comprising:

an outer sleeve member (100) provided with a first accommodating cavity (120) therein;

interior external member (200), its releasable connection be in first hold chamber (120), be equipped with a plurality of annular (210) on the outer peripheral face of interior external member (200), every all be equipped with first sealing washer (211) on annular (210), first sealing washer (211) and the first inner wall butt that holds chamber (120), it holds chamber (230) to be equipped with the second in interior external member (200), the second hold chamber (230) with first chamber (120) intercommunication that holds, the second holds and is equipped with a plurality of second sealing washer (400) in chamber (230).

2. The shaft seal assembly of claim 1 wherein: a limiting table (121) is arranged in the first accommodating cavity (120), and the internal member (200) is limited and abutted to the limiting table (121).

3. The shaft seal assembly of claim 2 wherein: the limiting table (121) is provided with a limiting ring (1211), a first bearing (510) is arranged between the inner sleeve (200) and the limiting ring (1211), and the first bearing (510) is in limiting abutting connection with the inner sleeve (200) and the limiting ring (1211) respectively.

4. The shaft seal assembly of claim 3 wherein: a second bearing (520) is further arranged in the first accommodating cavity (120), and the second bearing (520) is limited and abutted to the other side of the limiting ring (1211).

5. The shaft seal assembly of claim 1 wherein: one end of the inner sleeve (200) is provided with a clamping groove (220), the end face of the outer sleeve (100) is provided with a clamping ring (300), and the clamping ring (300) is clamped in the clamping groove (220).

6. The shaft seal assembly of claim 1 wherein: the first sealing ring (211) is an O-shaped sealing ring.

7. The shaft seal assembly of claim 1 wherein: the second sealing ring (400) is a Y-shaped sealing ring.

8. The platen pumping apparatus, comprising the shaft seal assembly of any one of claims 1 to 7, further comprising: the shaft seal assembly comprises an actuating mechanism (20) and a transmission mechanism (30), wherein the transmission mechanism (30) is in transmission connection with the actuating mechanism (20), and the shaft seal assembly (10) is installed between the transmission mechanism (30) and the actuating mechanism (20).

9. The platen pumping device according to claim 8, wherein: drive mechanism (30) include motor and transmission shaft (31), the main shaft of motor with transmission shaft (31) rigid connection, transmission shaft (31) run through in proper order first holding chamber (120), second holding chamber (230).

10. The platen pumping device of claim 9, wherein: actuating mechanism (20) are including inhaling room (21), stator (22), rotor (23), universal joint (24), jackshaft (25) and discharge chamber (26), and the periphery of inhaling room (21) is connected with pressure disk (27), transmission shaft (31), jackshaft (25), universal joint (24), rotor (23) connect gradually, discharge chamber (26), stator (22), inhale room (21) and communicate in proper order, rotor (23) with stator (22) match the use.