CN216917411U

CN216917411U - Full-lining ceramic blanking valve

Info

Publication number: CN216917411U
Application number: CN202220301831.2U
Authority: CN
Inventors: 金浩军; 冯一桀; 姜雅周
Original assignee: Yantai Kingway Science & Technology Co ltd
Current assignee: Yantai Kingway Science & Technology Co ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-07-08
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses a full-lining ceramic blanking valve, wherein the left end and the right end of a valve body are respectively provided with a motor side end cover and a manual side end cover, the upper end and the lower end of the valve body are respectively provided with an inlet flange and an outlet flange, a ceramic rotor is arranged in a central cavity, two ends of a central rotating shaft of the ceramic rotor extend outwards and horizontally penetrate through the motor side end cover and the manual side end cover, the manual side end cover and the motor side end cover are respectively provided with a stuffing box at one end close to the valve body, and stuffing in the stuffing box is fixed in a cavity of the stuffing box through a detachable split combined stuffing pressing plate. According to the full-lining ceramic blanking valve, the sealing filler between the central rotating shaft of the ceramic rotor and the end covers at two ends is compressed and sealed by the detachable split combined type filler pressing plate, when the filler is replaced, the valve can be completely detached without expanding the operation space between the bearing seat and the filler, the distance between the bearing seat and the filler is reduced, the stability of the ceramic rotor is improved, the jumping frequency is reduced, and the abrasion to the sliding surface of the inner wall of the cavity chamber of the valve is reduced.

Description

Full-lining ceramic blanking valve

Technical Field

The utility model relates to the technical field of valves, in particular to a full-lining ceramic blanking valve.

Background

At present, in the trade that relates to powder such as lithium cell, the unloading valve that traditional metal unloading valve or materials such as polyurea, nylon are being replaced to the pottery unloading valve, and the effectual problem of having solved these traditional unloading valve rotors and not wear-resisting, nevertheless this kind of rotor still exists following technical defect structurally:

when the filler or the framework sealing ring needs to be replaced after being worn, the blanking valve of the framework sealing ring is used for disassembling end covers at two ends, and then parts such as a motor and a rotor which have high requirements on precision matching need to be disassembled, so that the procedure is complicated, and the integral precision of the blanking valve can be influenced after the blanking valve is disassembled and assembled for multiple times; the blanking valve sealed by the filler is relatively simple to operate, the filler pressing plate is retreated along the opposite direction of filler pressing to be close to the bearing seat, and the space is exposed so as to scratch the old filler and replace the new filler. However, the conventional packing pressing plate is integrated and still hangs on the rotor rotating main shaft after being withdrawn, so that the space for replacing the packing is more narrow. The conventional solution is that when designing, enlarge the linear distance between bearing frame and the filler, but such mode can directly increase the fulcrum interval to rotor center pivot, causes rotor stability to descend, and the grow of beating has accelerated the wearing and tearing to the valve body chamber inner wall glide plane.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model aims to provide the full-lining ceramic blanking valve which can reduce the difficulty and workload when the filler is replaced and can also reduce the abrasion degree of a rotor to the sliding surface of the inner wall of the valve chamber.

The utility model adopts the following technical scheme: a full-lining ceramic blanking valve comprises a valve body, wherein a motor side end cover and a manual side end cover are respectively arranged at the left end and the right end of the valve body, an inlet flange and an outlet flange are arranged at the upper end and the lower end of the valve body, and a ceramic rotor is arranged in a central cavity; two ends of a central rotating shaft of the ceramic rotor extend outwards and horizontally penetrate through the motor side end cover and the manual side end cover, a motor embedding opening is formed in a port of the central rotating shaft, which is located on one side of the motor side end cover, and a rotating bayonet is formed in a port of the central rotating shaft, which is located on one side of the manual side end cover; the manual side end cover and the motor side end cover are respectively provided with a stuffing box at one end close to the valve body, and a bearing seat in which a fixed bearing can be placed is arranged at one end far away from the valve body; the stuffing in the stuffing box is fixed in a cavity of the stuffing box through a detachable split combined type stuffing pressing plate, and the split combined type stuffing pressing plate is fixedly arranged on the manual side end cover and the motor side end cover through fasteners respectively.

As an optimization scheme, the motor side end cover and the manual side end cover are both provided with an upper end face and a lower end face, the centers of the upper end face and the lower end face are aligned to be provided with a rotating shaft hole, and the upper end face and the lower end face are connected through a plurality of connecting columns; the split combined type packing pressing plate comprises a plurality of pressing plate pieces which are mutually connected, and the front end of each pressing plate piece penetrates into the motor side end cover and the manual side end cover through a gap between the connecting columns and is attached to the outer wall of the central rotating shaft of the ceramic rotor; each group of the pressing plate pieces is provided with a first connecting arm, the outward end of the first connecting arm is provided with a first connecting hole matched with the fastener, the inward end of the first connecting arm is provided with an arc-shaped pressing flap, two sides of the arc-shaped pressing flap are provided with second connecting arms provided with second connecting holes, and every two pressing plate pieces are connected together through a fastening bolt penetrating into the second connecting holes; the end face of one end, facing the stuffing box, of the arc-shaped pressing flap is higher than the base face of the pressing plate piece, and the pressing flaps are mutually spliced to form a sealing ring inserted into a cavity of the stuffing box.

As an optimized scheme, the ceramic rotor is cylindrical, a plurality of blanking grooves which are narrow at the bottom and wide at the top and have trapezoidal cross sections are uniformly distributed on the peripheral surface of the ceramic rotor, two ends of the periphery of the ceramic rotor are tightly attached to the inner wall of the central cavity of the valve body, and a sealing ring is arranged between the two grooves.

As an optimized scheme, the sealing ring is made of high polymer materials, and a plurality of serrated lip-shaped sealing rings are arranged on the inner ring of the sealing ring.

As an optimized scheme, flange surface linings are arranged on the outer side sealing surfaces of the inlet flange and the outlet flange and are made of ceramic or high polymer materials.

As an optimized scheme, ceramic lining surfaces are arranged on the inner walls of the feed inlet of the inlet flange, the discharge outlet of the outlet flange and the inner wall of the valve body; and ceramic lining surfaces are also arranged on the end surfaces of the manual side end cover and the motor side end cover, which face to one end of the ceramic rotor.

Compared with the prior art, the utility model has the advantages that: according to the full-lining ceramic blanking valve, the sealing filler between the central rotating shaft of the ceramic rotor and the end covers at two ends is compressed and sealed by the detachable split combined type filler pressing plate, when the filler is replaced by the valve, the valve can be completely detached without enlarging the operation space between the bearing seat and the filler box, the distance between the bearing seat and the filler is reduced, the stability of the ceramic rotor is improved, the jumping frequency of the ceramic rotor is reduced, and the abrasion to the sliding surface of the inner wall of the cavity chamber of the valve is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of a fully lined ceramic discharge valve of the present invention;

FIG. 2 is an enlarged view of a portion of the seal ring circled in FIG. 1;

FIG. 3 is a schematic view of the connection between the split combined packing press plate and the motor side end cap or the manual side end cap according to the present invention;

FIG. 4 is a schematic illustration of one embodiment of the split composite packing press plate of the present invention after disassembly and assembly;

FIG. 5 is a schematic cross-sectional view of a ceramic rotor of the present invention;

wherein, 1-valve body, 2-motor side end cover, 3-manual side end cover, 4-inlet flange, 5-outlet flange, 6-ceramic rotor, 7-fixed bearing, 8-bearing seat, 9-split combined packing press plate, 10-fastener, 11-sealing ring, 12-flange surface lining, 13-packing box, 14-ceramic lining surface, 111-lip type sealing ring, 3-inlet flange, 5-outlet flange, 9-split combined packing press plate, 10-fastener, 12-sealing ring, 12-flange surface lining, 13-packing box, 14-ceramic sealing ring surface, 111-lip type sealing ring, and,

21. 31-upper end face, 22, 32-lower end face, 23, 33-rotating shaft hole, 24, 34-connecting column,

61-central rotating shaft, 62-motor embedding opening, 63-rotating bayonet, 64-discharging groove,

91-crimping piece, 911-first connecting arm, 912-first connecting hole, 913-arc-shaped crimping flap, 914-second connecting hole, 915-fastening bolt.

Detailed Description

Hereinafter, in order to facilitate the technical solution of the present invention for those skilled in the art to understand, further description will be made with reference to the accompanying drawings. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1, which is a schematic cross-sectional structure diagram of an embodiment of the full-lining ceramic baiting valve of the present invention, the full-lining ceramic baiting valve includes a valve body 1, a motor side end cap 2, a manual side end cap 3, an inlet flange 4, an outlet flange 5, a ceramic rotor 6, a fixed bearing 7, a bearing seat 8, and a split combined packing press plate 9. The valve body 1 is of a four-way type, a motor side end cover 2 and a manual side end cover 3 are respectively arranged at the left end and the right end of the valve body 1, an inlet flange 4 and an outlet flange 5 are arranged at the upper end and the lower end of the valve body, and a ceramic rotor 6 is arranged in a central cavity. The both ends of the central rotating shaft 61 of the ceramic rotor 6 extend outwards and horizontally penetrate out of the motor side end cover 2 and the manual side end cover 3, a motor embedding opening 62 is arranged at the port of the central rotating shaft 61, which is positioned at one side of the motor side end cover 2, and is used for connecting an external motor, and a rotating bayonet 63 is arranged at the port of one side, which is positioned at the manual side end cover 3, and is used for connecting a manual tool to process when special conditions occur, such as jamming in the cavity of the valve body 1 or manual maintenance required by other conditions. The central shaft 61 is usually made of metal. At manual side end cover 2, motor side end cover 3 is equipped with stuffing box 13 respectively in the one end that is close to valve body 1, be equipped with the bearing frame 8 that can put into fixed bearing 7 in the one end of keeping away from valve body 1, fixed bearing 7 is used for fixing spacing to ceramic rotor 6's central rotating shaft 61 from both ends, the packing in stuffing box 13 is then fixed in the cavity of stuffing box 13 through detachable split combination formula packing clamp plate 9, split combination formula packing clamp plate 9 is then through fastener 10 respectively fixed mounting on manual side end cover 3 and motor side end cover 2, fastener 10 can adopt fastening bolt. In this embodiment, the inlet flange 4 and the outlet flange 5 are provided with a flange lining 12 on the sealing surface, and the flange lining 12 may be made of ceramic or polymer material to realize sealing connection with an external pipeline. Ceramic lining surfaces 14 are arranged on the inner walls of the feeding hole of the inlet flange 4 and the discharging hole of the outlet flange 5 and on the inner wall of the valve body 1. The end faces of the manual side end cover 3 and the motor side end cover 2, which face the ceramic rotor 6, are also provided with ceramic lining surfaces 14, so that the integral wear resistance of the blanking valve is improved, and the pollution of scraps produced by the abrasion of the inner walls to powder is avoided in the process of reserving the powder from the feed inlet to the discharge outlet.

As shown in fig. 3, in the present embodiment, the motor-side end cap 2 and the manual-side end cap 3 are provided with upper end faces 21,31 and lower end faces 22,32, and the centers of the upper end faces 21,31 and the lower end faces 22,32 are aligned with the rotation shaft holes 23,33 for fixing the central rotation shaft 61, and the upper end faces 21,31 and the lower end faces 22,32 are connected by a plurality of connection columns 24, 34. As shown in fig. 3 and 4, the split combined type packing press plate 9 includes a plurality of press plate members 91 connected to each other, in the figure, taking 3 pieces as an example, the front end of each set of press plate members 91 penetrates into the motor side end cap 2 and the manual side end cap 3 through the gap between the connecting posts 24 and 34 and is attached to the outer wall of the central rotating shaft 61, each set of press plate members 91 is provided with a first connecting arm 911, and the first connecting arm 911 is provided with a first connecting hole 912 adapted to the fastener 10 towards the outer end for fixing each set of press plate members 91 on the motor side end cap 2 and the manual side end cap 3. First linking arm 911 is equipped with an arc pressure lamella 913 towards the inner end, and presses the second linking arm of lamella 914 to set up in the both sides of arc pressure lamella 913, and two liang press plate member 91 between tightly to be in the same place through the fastening bolt 915 that penetrates second linking hole 914. The end face of one end of the arc-shaped pressing piece 913 facing the stuffing box 13 is higher than the base face of the pressing plate 91, and the arc-shaped pressing pieces 913 are spliced with each other to form a sealing ring inserted into a cavity of the stuffing box 13, so that the stuffing is tightly pressed into the stuffing box 13. When the packing in the stuffing box 13 needs to be replaced, only the fastening bolts 915 need to be removed to detach each group of pressing plate pieces 91, the operation is simple and convenient, the internal space of the motor side end cover 2 and the manual side end cover 3 is saved, the operation space between the bearing seat 8 and the stuffing box 13 does not need to be enlarged, the distance between the bearing seat 8 and the stuffing box 13 is reduced, the stability of the ceramic rotor 6 is improved, the jumping frequency of the ceramic rotor is reduced, and the abrasion to the sliding surface of the inner wall of the cavity of the valve body 1 is reduced.

Referring to fig. 1 and 5, in the present embodiment, the ceramic rotor 6 is cylindrical, and a plurality of feeding grooves 64 with narrow bottom and wide top and trapezoidal cross section are uniformly arranged on the outer peripheral surface of the ceramic rotor, the feeding grooves 64 are used for holding powder when the central rotating shaft 61 rotates and releasing the powder when the central rotating shaft rotates to the bottom, and both ends of the outer periphery of the ceramic rotor 6 are tightly attached to the inner wall of the central cavity of the valve body 1, so as to maintain the overall sealing performance of the inner cavity of the feeding valve.

Referring to fig. 2, in order to further improve the overall sealing performance of the inner cavity of the blanking valve, sealing rings 11 are disposed at two ends of the ceramic rotor 6, and an inner hole of each sealing ring 11 is in sealing connection with an outer circle of the ceramic rotor 6 to prevent powder particles from passing through. The end faces of the sealing rings 11 are respectively pressed and sealed with the ceramic lining surface 14 in the cavity of the valve body 1 and are closely matched. Generally, the material of the seal ring 11 may be a polymer material such as a tetrafluoro material. In addition, as an invention point of this embodiment, a plurality of lip-shaped sealing rings 111 arranged in a zigzag manner are arranged on the inner ring of the sealing ring 11, and an irregular-shaped channel is formed integrally by the plurality of lip-shaped sealing rings 111, so that powder particles in the cavity of the valve body 1 are difficult to enter the stuffing box 13 at the side end and the end cover at both ends of the ceramic rotor 6 through the sealing ring 11, the overall sealing effect of the blanking valve is further improved, the service life of the sealing ring 6 is prolonged, and meanwhile, the central rotating shaft 61 made of a metal material at the stuffing box 13 is difficult to enter the cavity through the sealing ring 11 to pollute the powder due to scrap generated by abrasion, thereby realizing an effective bidirectional sealing effect.

In conclusion, the sealing filler between the central rotating shaft 61 of the ceramic rotor 6 and the end covers at the two ends of the fully-lined ceramic discharge valve is compressed and sealed by the detachable split combined type filler pressing plate 9, and can be completely detached when the filler is replaced by the valve, so that the operation space between the bearing seat 8 and the filler box 13 does not need to be enlarged, the distance between the bearing seat 8 and the filler box 13 is reduced, the stability of the ceramic rotor 6 is improved, the jumping frequency of the fully-lined ceramic discharge valve is reduced, and the abrasion to the sliding surface of the inner wall of the cavity of the valve body 1 is reduced.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A full-lining ceramic discharge valve comprises a valve body (1) and is characterized in that,

a motor side end cover (2) and a manual side end cover (3) are respectively arranged at the left end and the right end of the valve body (1), an inlet flange (4) and an outlet flange (5) are arranged at the upper end and the lower end of the valve body, and a ceramic rotor (6) is arranged in the central cavity;

two ends of a central rotating shaft (61) of the ceramic rotor (6) extend outwards and horizontally penetrate through the motor side end cover (2) and the manual side end cover (3), a motor embedding opening (62) is formed in a port, located on one side of the motor side end cover (2), of the central rotating shaft (61), and a rotating bayonet (63) is formed in a port, located on one side of the manual side end cover (3);

one end of the manual side end cover (3) and one end of the motor side end cover (2) close to the valve body (1) are respectively provided with a stuffing box (13), and one end far away from the valve body (1) is provided with a bearing seat (8) in which a fixed bearing (7) can be placed;

the stuffing in the stuffing box (13) is fixed in a cavity of the stuffing box (13) through a detachable split combined type stuffing pressing plate (9), and the split combined type stuffing pressing plate (9) is fixedly installed on the manual side end cover (3) and the motor side end cover (2) through fasteners (10).

2. The fully lined ceramic blanking valve according to claim 1, wherein the motor side end cap (2) and the manual side end cap (3) are provided with an upper end face (21,31) and a lower end face (22,32), and a rotating shaft hole (23,33) is arranged in the centers of the upper end face (21,31) and the lower end face (22,32) in alignment, and the upper end face (21,31) and the lower end face (22,32) are connected through a plurality of connecting columns (24, 34); the split combined type packing pressing plate (9) comprises a plurality of pressing plate pieces (91) which are mutually connected, and the front end of each pressing plate piece (91) penetrates into the motor side end cover (2) and the manual side end cover (3) through a gap between the connecting columns (24,34) and is attached to the outer wall of the central rotating shaft (61); each group of the pressing plate pieces (91) is provided with a first connecting arm (911), the outward end of the first connecting arm (911) is provided with a first connecting hole (912) matched with the fastener (10), the inward end of the first connecting arm (911) is provided with an arc pressing piece (913), two sides of the arc pressing piece (913) are provided with second connecting arms provided with second connecting holes (914), and every two pressing plate pieces (91) are connected together through a fastening bolt (915) penetrating through the second connecting hole (914); the end face, facing the stuffing box (13), of the end face of the arc-shaped pressing flap (913) is higher than the base face of the pressing plate piece (91), and the arc-shaped pressing flaps (913) are mutually spliced to form a sealing ring inserted into a cavity of the stuffing box (13).

3. The ceramic discharge valve as claimed in claim 1, wherein the ceramic rotor (6) is cylindrical, a plurality of discharge slots (64) having a narrow bottom and a wide top and a trapezoidal cross section are uniformly arranged on the outer circumferential surface of the ceramic rotor, both ends of the outer circumference of the ceramic rotor are tightly attached to the inner wall of the central chamber of the valve body (1), and a sealing ring (11) is arranged between the two.

4. The ceramic discharge valve with full lining according to claim 3, characterized in that the sealing ring (11) is made of polymer material, and a plurality of zigzag lip-shaped sealing rings (111) are arranged on the inner ring.

5. The full-lining ceramic discharge valve according to claim 1, wherein the outer sealing surfaces of the inlet flange (4) and the outlet flange (5) are provided with flange surface linings (12) in a groove mode, and the flange surface linings (12) are made of ceramic or high polymer materials.

6. The full-lining ceramic blanking valve according to claim 1, characterized in that the inner walls of the inlet port of the inlet flange (4), the outlet port of the outlet flange (5) and the inner wall of the valve body (1) are provided with ceramic lining surfaces (14); and ceramic lining surfaces (14) are also arranged on the end surfaces of the manual side end cover (3) and the motor side end cover (2) facing to one end of the ceramic rotor (6).