CN209943670U - Shaft end seal for valve plate shaft of flash valve and flash valve - Google Patents
Shaft end seal for valve plate shaft of flash valve and flash valve Download PDFInfo
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- CN209943670U CN209943670U CN201920562649.0U CN201920562649U CN209943670U CN 209943670 U CN209943670 U CN 209943670U CN 201920562649 U CN201920562649 U CN 201920562649U CN 209943670 U CN209943670 U CN 209943670U
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Abstract
The utility model provides a shaft end seal for a valve plate shaft of a flash valve and a flash valve, which relate to the technical field of valves and solve the problem that the sealing is not tight when the valve plate shaft penetrates out of a shell in the prior art, and the shaft end seal for the valve plate shaft of the flash valve comprises a seal pressing plate, a seal packing tube and a seal stopping bowl; the sealing pressure plate, the sealing filler pipe and the sealing stop bowl are all provided with shaft holes capable of penetrating through the valve plate shaft; the sealing pressure plate is a flange part, the flange of the sealing pressure plate is connected with the first end of the sealing filler pipe, and the cylindrical pipe of the sealing pressure plate extends into the first end of the sealing filler pipe; the sealing stopping bowl comprises a sealing end plate vertical to the axis of the sealing filler pipe, the sealing end plate is connected with the second end of the sealing filler pipe, and the hole diameter of a shaft hole of the sealing end plate is smaller than that of the sealing filler pipe; the flash valve comprises the flash valve plate shaft which is sealed by the shaft end. Compared with the prior art, the utility model, have more good sealed and durability.
Description
Technical Field
The utility model relates to the technical field of valves, specific flash valve shaft end seal and flash valve for valve plate shaft that says so.
Background
The flashing valve is also called as an air locking valve or a flashing air locking valve, is a valve used on a powdery material blanking pipeline for locking air, and has the following basic structure and working principle: the flash valve has a cylindrical outer casing, a valve plate capable of being opened and closed freely inside the casing, and an annular stop ring welded to the inner wall of the casing. The valve plate is welded with a supporting plate which is connected on a shaft, two ends of the shaft penetrate out of the shell, two ends of the shaft are respectively provided with a rolling bearing, and a bearing seat of the rolling bearing is supported on two supporting seats arranged on the shell. The weight shaft is arranged at the position where two end heads of the shaft are adjacent to the bearing seat, the weight is arranged on the weight shaft, the weight and the valve plate are respectively arranged at two sides of the valve shaft, and the gravity at the side of the valve plate is smaller than the gravity at the side of the weight, so the valve plate is tightly attached to the valve plate spigot ring upwards under the action of the gravity lever of the weight, the automatic sealing of the flash valve is realized, the airflow in the pipeline cannot pass through the position, and the air locking function of the valve is realized. When the material falls in the material pipe where the flash valve is located and the weight of the falling material is larger than the lever acting force of the heavy hammer, the valve plate moves downwards under the action of the gravity of the material, and the valve is opened at the moment to enable the material to pass through. When the material amount on the valve plate is reduced to the gravity of the valve plate and the gravity of the weight hammer, the valve plate can be automatically closed. The valve plate acts repeatedly in this way, and the functions of material passing and air locking are realized.
The existing universal flash valve has the defects that the sealing that a valve plate shaft penetrates out of a shell is only sealed by simple filler, the sealing effect is poor, and the serious problems of ash leakage, material overflow and dust-containing gas overflow cause environmental pollution.
The two ends of a valve plate shaft of the existing universal flashing valve adopt rolling bearings to realize smooth rotation and supporting and positioning of the valve plate shaft, and the rolling bearings can be damaged very quickly due to the fact that the working environment of the flashing valve usually has high temperature and dust, so that the flashing valve cannot work normally. In addition, the rolling bearing has a complex structure, lubricating oil needs to be added periodically during operation, and the manufacturing cost and the operation cost are high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at designs out the sealed and flash valve of shaft end for the flash valve shaft, wears out the sealed of casing department through the valve plate axle to flash valve and improves, makes this department can have more good sealed and durability, reduces the pollution to the environment.
The utility model discloses a following technical scheme realizes:
the utility model provides a shaft end seal for a valve plate shaft of a flash valve, which comprises a sealing pressing plate, a sealing filler pipe and a sealing stopping bowl; the sealing pressure plate, the sealing filler pipe and the sealing stop bowl are all provided with shaft holes capable of penetrating through a valve plate shaft;
the sealing pressure plate is a flange part, the flange of the sealing pressure plate is connected with the first end of the sealing filler pipe, and the cylindrical pipe of the sealing pressure plate extends into the first end of the sealing filler pipe;
the sealing stop bowl comprises a sealing end plate, the sealing end plate is connected with the second end of the sealing filler pipe, and the hole diameter of the shaft hole of the sealing end plate is smaller than that of the sealing filler pipe.
When the structure is adopted, the cylindrical pipe extends into the first end of the sealing filler pipe and is used for compressing the filler space in the sealing filler pipe, the sealing filler in the sealing filler pipe is compressed when the sealing filler pipe is used, and the sealing stopping bowl is fixed at the second end of the sealing filler pipe and is used for blocking the filler. The sealing filler pipe and the sealing stopping bowl form labyrinth seal at the position of the sealing filler pipe, so that the sealing performance of the valve plate shaft of the flash valve penetrating out of the shell is improved, the filler seal can be less corroded by dust gas and the like, the problems of dust leakage, material overflow and dust-containing gas overflow existing at the position of the valve plate shaft penetrating out of the shell are reduced and even eliminated, and the pollution to the environment is reduced.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the flange is provided with a plurality of flange holes, and the flange is connected with the first end of the sealing filler pipe in a flange mode.
When the structure is adopted, the sealing filler pipe and the sealing pressing plate can be pressed or loosened by rotating the bolt, and the pressing degree of the cylindrical pipe on the sealing filler is adjusted.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the sealing bowl further comprises a pipe sleeve extending axially, the sealing end plate is fixed on the inner side of the pipe sleeve, the pipe sleeve is sleeved on the pipe body of the second pipe of the sealing filler pipe, and a small gap is formed between the inner wall of the pipe sleeve and the outer wall of the sealing filler pipe.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the shaft end seal for the flash valve plate shaft further comprises an outer side sealing plate and a back pressure plate, the sealing filler pipe penetrates through the back pressure plate and is inserted into the outer side sealing plate in a penetrating mode, and the back pressure plate is connected to the surface, facing one side of the sealing stopping bowl, of the outer side sealing plate.
When the structure is arranged, the sealing filler pipe can be supported through the arrangement of the outer side sealing plate and the back pressing plate, and the sealing filler pipe is clamped and fixed at the position of the shell box through the outer side sealing plate and the back pressing plate.
The utility model also provides a flash valve, which comprises a shell barrel, a bearing, a shaft support, a shell box, a weight shaft, a weight, a valve plate upper retainer ring and the shaft end seal for the valve plate shaft of the flash valve;
the shell box is connected with the shell barrel, and the valve plate upper retainer ring and the valve plate are arranged in the shell barrel; the valve plate is connected with a valve plate shaft arranged in the shell box, the shell box is provided with the flash valve plate shaft for shaft end seal in a penetrating way, two ends of the valve plate shaft penetrate through the shell box and the corresponding flash valve plate shaft for shaft end seal, the sealing filler pipe is filled with sealing filler, and a shaft platform of the valve plate shaft is arranged in the shell box and is pressed against the sealing end plate towards the outside of the shell box; the shaft is supported on the outer wall of the shell box, the bearing seat is supported on the shaft, and two extending ends of the valve plate shaft are respectively connected with the corresponding bearings; the heavy hammer shaft is connected with an extending end of the valve plate shaft, and the heavy hammer is connected with the heavy hammer shaft.
When the structure is adopted, the cylindrical pipe extends into the first end of the sealing filler pipe and is used for compressing the filler space in the sealing filler pipe, the sealing filler in the sealing filler pipe is compressed when the sealing filler pipe is used, and the sealing stopping bowl is fixed at the second end of the sealing filler pipe and is used for blocking the filler. The sealing filler pipe and the sealing stopping bowl form labyrinth seal at the position of the sealing filler pipe, so that the sealing performance of the valve plate shaft of the flash valve penetrating out of the shell is improved, the filler seal can be less corroded by dust gas and the like, the problems of dust leakage, material overflow and dust-containing gas overflow existing at the position of the valve plate shaft penetrating out of the shell are reduced and even eliminated, and the pollution to the environment is reduced.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the outer side sealing plate is arranged on the outer wall of the shell box, the back pressure plate is arranged on the inner wall of the shell box, and the outer side sealing plate and the back pressure plate are fastened through bolts to tightly press the wall plate of the shell box.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the bearing comprises a tool bearing table and a tool bit, wherein the top surface of the tool bearing table is provided with a sharp-bottom groove with a V-shaped cross section, the tool bit is a wedge-shaped structural part with a V-shaped cross section, the sharp end of the tool bit is seated at the bottom of the groove of the tool bearing table, and the tool bit can swing in the groove of the tool bearing table relative to the sharp end of the tool bit; the cutter head is fixedly connected with the extending end of the valve plate shaft, the tip end of the cutter head is collinear with the axis of the valve plate shaft, and the cutter bearing seat is supported by the shaft.
When the structure is arranged, the tool bit is arranged at the groove bottom of the tool bearing table by taking the tip end of the tool bit as a fulcrum seat, and the tool bit can swing in the groove, so that the valve plate shaft is supported and rotated. By utilizing the matching of the tool bit and the tool bearing table, the tool is simple in structure and easy to maintain, does not need to be oiled regularly for maintenance, and saves the maintenance cost and the manufacturing cost.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the cutter head is connected with a shaft sleeve, and the shaft sleeve is sleeved at the extending end of the valve plate shaft.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the shaft sleeve is provided with a key groove and is in shaft key connection with the valve plate.
Further for better realization the utility model discloses, adopt the following structure that sets up very much: the bottom surface of the cutter bearing table is connected with a lower backing plate, and the lower backing plate is seated on the shaft support.
The utility model has the advantages of it is following and beneficial effect:
the utility model discloses in, the shaft end is sealed to be passed through for the valve plate shaft of flash valve the cylinder pipe stretches into be used for the compression in the first end of sealing filler pipe packing space in the sealing filler pipe to the gland packing in the sealing filler pipe when using, and pass through the sealing only bowl is fixed in the second end of sealing filler pipe is used for the shutoff filler, by sealing filler pipe with the sealing only bowl both in sealing filler pipe department forms the labyrinth seal, increases the valve plate shaft of flash valve and wears out the sealing performance of casing department to make the packing seal can receive the erosion of dust gas etc. less, reduce or even eliminate the valve plate shaft and wear out the problem that the ash, the material of bleeding, the dusty gas that exist of casing department spills over, reduce the pollution that causes the environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the flash valve spool shaft with a shaft end seal;
FIG. 2 is a longitudinal sectional view of FIG. 1;
FIG. 3 is a schematic view of a structure of a bearing in embodiment 3;
FIG. 4 is a longitudinal cross-sectional view of FIG. 3;
FIG. 5 is a schematic view of the structure of the flash valve;
FIG. 6 is a longitudinal cross-sectional view of FIG. 4;
labeled as:
1-upper flange; 2-a housing barrel; 3-the shaft of the valve plate of the flash valve is sealed by the shaft end; 3 a-sealing the end plate; 3 a-1-cylindrical tube; 3 a-2-flange; 3 b-sealing the packing tube; 3 c-outer seal plate; 3 d-sealing the bowl; 3 d-1-sealing the end plate; 3 d-2-cannula; 3 e-a back press plate; 4-a bearing; 4 a-a tool holder table; 4 b-a cutter head; 4 c-lower backing plate; 4 d-shaft sleeve; 5-shaft support; 6-lower flange; 7-a housing box; 8-door; 9-weight dropper; 10-a valve plate; 11-a check ring is arranged on the valve plate; 12-valve plate shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
the embodiment provides a shaft end seal for a valve plate shaft of a flash valve, which can have better sealing and durability and reduce pollution to the environment by improving the seal at the position where the valve plate shaft of the flash valve penetrates out of a shell, and is particularly arranged in the following structures as shown in figures 1, 2, 3, 4, 5 and 6:
comprises a sealing pressure plate 3a, a sealing filler pipe 3b and a sealing stopping bowl 3d, wherein the sealing filler pipe 3b is used for penetrating through a valve plate shaft 12 and filling sealing filler. The sealing pressure plate 3a, the sealing filler pipe 3b and the sealing bowl 3d are all provided with shaft holes capable of penetrating through the valve plate shaft 12, and the sealing pressure plate 3a, the sealing filler pipe 3b and the sealing bowl 3d are coaxially arranged and sequentially connected.
The sealing pressing plate 3a is an integrally formed flange piece, the sealing pressing plate 3a consists of a cylindrical pipe 3a-1 and a flange 3a-2 positioned at the end part of the cylindrical pipe 3a-1, a plurality of flange holes are processed at the flange 3a-2, a flange plate is arranged at the first end of the sealing filler pipe 3b, bolts penetrate through the flange holes of the flange 3a-2 and the flange holes of the flange plate of the sealing filler pipe 3b, then the sealing pressing plate 3a is detachably connected at the first end of the filler pipe 3b through nut fastening, the sealing filler pipe 3b and the sealing pressing plate 3a can be pressed or loosened through rotating the bolts, and the pressing degree of the cylindrical pipe 3a-1 on the sealing filler is adjusted; the cylindrical tube 3a-1 of the sealing pressure plate 3a extends into the first end of the sealing filler tube 3b from the first end port of the sealing filler tube 3b and is used for abutting against the sealing filler filled in the sealing filler tube 3 b. The sealing bowl 3d is used for sealing the sealing filler in the sealing filler pipe 3b at the second end of the sealing filler pipe 3b, the sealing bowl 3d comprises a sealing end plate 3d-1, the sealing end plate 3d-1 is a disc-shaped structural member and is provided with a shaft hole for the valve plate shaft 12 to pass through, the sealing end plate 3d-1 can be fixed at the second end of the sealing filler pipe 3b in a welding or threaded connection mode, and can also be abutted against the end part of the second end of the sealing filler pipe 3b through a shaft platform of the valve plate shaft 12. The hole diameter of the shaft hole of the seal end plate 3d-1 is smaller than that of the seal filler pipe 3 b. The cylindrical tube 3a-1 is extended into the first end of the sealing filler tube 3b for compressing the filler space in the sealing filler tube 3b and compressing the sealing filler in the sealing filler tube 3b when in use, and the sealing stop bowl 3d is fixed at the second end of the sealing filler tube 3b for blocking the filler. By sealed filler tube 3b and sealed bowl 3d both form labyrinth seal in sealed filler tube 3b department, increase the valve plate axle 12 of flash valve and wear out the sealing performance of casing department to make the packing seal can receive the erosion of dust gas etc. by less, reduce or even eliminate the valve plate axle and wear out the problem that the ash running, the material of bleeding, the dusty gas that exist of casing department spills over, reduce the pollution that causes the environment.
As a preferable structure scheme of the sealing bowl 3d, the sealing bowl 3d is an integrally formed bowl-shaped structural member and comprises a sealing end plate 3d-1 and an axially extending pipe sleeve 3d-2, the sealing end plate 3d-1 is fixed on the inner side of the second end of the pipe sleeve 3d-2, the pipe sleeve 3d-2 is sleeved on the pipe body of the second pipe of the sealing filler pipe 3b to facilitate positioning and limiting, and a small gap is formed between the inner wall of the pipe sleeve 3d-2 and the outer wall of the sealing filler pipe 3 b.
In order to be connected and fixed with the shell box 7 of the flash valve, the shaft end seal for the valve plate shaft of the flash valve further comprises an outer side sealing plate 3c and a back pressing plate 3e, the whole structure of the outer side sealing plate 3c is of a plate-shaped structure, the specific shape of the outer side sealing plate is matched with that of the shell box 7 so as to be conveniently fixed as a main part, and the back pressing plate 3d is of a frame structure and can be a square frame or a U-shaped frame with one open side. The sealing filler pipe 3b penetrates through the back pressing plate 3e and penetrates through and is fixedly inserted into the outer side sealing plate 3c, the first end and the second end of the sealing filler pipe 3b are respectively located on two sides of the outer side sealing plate 3c and two sides of the back pressing plate 3e, the back pressing plate 3e is connected to the surface of one side, facing the sealing stopping bowl 3d, of the outer side sealing plate 3c, and the back pressing plate 3e is connected with the outer side sealing plate 3c through bolts. The packing tube 3b can be supported by the outer seal plate 3c and the back press plate 3e, and is clamped and fixed to the casing box 7 by the outer seal plate 3c and the back press plate 3 e.
Example 2:
the embodiment provides a flash valve on the basis of the above embodiment, and the sealing where the valve plate shaft of the flash valve penetrates out of the housing is improved, so that the sealing and the durability of the sealing can be better, and the pollution to the environment is reduced, and particularly, the following arrangement structure is adopted:
the valve comprises a shell barrel 2, a bearing 4, a shaft support 5, a shell box 7, a weight shaft, a weight 9, a valve plate 10, a valve plate upper retainer ring 11 and a flash valve plate shaft end seal 3 in the embodiment 1.
The casing case 7 is connected with the vertically arranged casing barrel 2, the insides of the casings are hollow, the casings are used for installing valves and transmission components thereof, the door 8 is installed on the casing case 7, the top of the casing barrel 2 is provided with an upper flange 1, and the bottom of the casing barrel 2 is provided with a lower flange 63. The valve plate upper retainer ring 11 is obliquely fixed on the inner wall of the shell box 7, and the valve plate 10 is arranged in the shell barrel 2 and is matched with the valve plate upper retainer ring 11. The connecting rod of the valve plate 10 extends into the housing tube 2 from the housing box 7 and is connected with a valve plate shaft 12 transversely arranged in the housing box 7, and two ends of the valve plate shaft 12 penetrate out of the housing tube 2. The shaft end seal 3 for the flash valve shaft is arranged on each of two sides of the shell box 7 in a penetrating mode, the sealing stop bowl 3d of the shaft end seal 3 for the flash valve shaft is located in the shell box 7, the sealing pressing plate 3a is located outside the shell box 7, the outer side sealing plate 3c is arranged on the outer wall of the shell box 7, the back pressing plate 3e is arranged on the inner wall of the shell box 7, and the outer side sealing plate 3c and the back pressing plate 3e are fastened through bolts to tightly press the wall plate of the shell box 7. The valve plate shaft 12 has two ends penetrating the housing box 7 and the corresponding shaft end seal 3 for the flash valve plate shaft, the seal packing tube 3b is filled with the seal packing, and the valve plate shaft 12 has a pillow block which presses the seal end plate 3d-1 toward the outside of the housing box 7 in the housing box 7, i.e., after the assembly is completed, the pillow block presses the seal end plate 3d-1 toward the second end of the seal packing tube 3 b. The shaft support 5 is a common bearing seat which is fixedly connected to the outer wall of the shell box 7 and is positioned below the bearing 4, the bearing 4 is a rolling bearing and is seated on the shaft support 5, and two extending ends of the valve plate shaft 12 are respectively in interference fit with the corresponding bearings 4; the weight shaft is fixedly connected to an extending end of the valve plate shaft 12, and the weight 9 is connected to the end of the weight shaft. The cylindrical tube 3a-1 is extended into the first end of the sealing filler tube 3b to compress the filler space in the sealing filler tube 3b and to compress the sealing filler in the sealing filler tube 3b when in use, and the sealing bowl 3d is fixed at the second end of the sealing filler tube 3b to block the filler. The sealing filler pipe 3b and the sealing stopping bowl 3d form labyrinth seal at the position of the sealing filler pipe 3b, so that the sealing performance of the valve plate shaft 12 of the flash valve, which penetrates out of the shell, is improved, the filler seal can be less corroded by dust gas and the like, the problems of dust leakage, material overflow and dust-containing gas overflow, which exist when the valve plate shaft penetrates out of the shell, are reduced and even eliminated, and the pollution to the environment is reduced.
Example 3:
the embodiment is further optimized on the basis of the embodiment, adopts the non-lubrication high-temperature-resistant knife type bearing, has a very simple structure, does not need lubrication, is made of heat-resistant steel, is not afraid of high temperature and dust, and therefore the service life of the flash valve and the reliability of the working performance of the flash valve are improved. The following arrangement structure is adopted in particular:
compared with the embodiment 2, the embodiment reselects and designs the bearing 4, the bearing 4 in the embodiment is a knife bearing and comprises a knife bearing platform 4a and a tool bit 4b, a through groove is processed on the top surface of the knife bearing platform 4a, the through groove is a sharp-bottomed groove with a V-shaped cross section, the tool bit 4b is a fan-shaped structural member as a whole, specifically a wedge-shaped structural member with a roughly V-shaped cross section, the tip of the tool bit 4b faces downwards and is seated on the groove bottom of the knife bearing platform 4a as a fulcrum, and the tool bit 4b can swing left and right in the groove of the knife bearing platform 4a in a reciprocating manner relative to the tip of the tool bit 4 b; the cutter head 4b is fixedly connected to the extended end of the valve plate shaft 12, and the tip end point of the cutter head 4b is collinear with the axis of the valve plate shaft 12. The shaft support 5 is an L-shaped support arm fixedly attached to the outer wall of the housing case 7 and located below the bearing 4, and a lower pad plate 4c is attached to the bottom surface of the tool holder 4a, the lower pad plate 4c being seated on the top surface of the shaft support 5, and the tool holder 4a being seated on the top surface of the lower pad plate 4 c.
Therefore, the tool bit 4b is seated at the groove bottom of the tool bearing table 4a with the tip as a fulcrum, and the tool bit 4b can swing in the groove, so that the valve plate shaft 12 is supported and rotated to realize the function of a bearing. By utilizing the matching of the tool bit 4b and the tool bearing table 4a, the structure is simple and easy to maintain, the maintenance of oil pumping at regular intervals is not needed, and the maintenance cost and the manufacturing cost are saved.
In order to facilitate the connection of the bearing 4 and the valve plate shaft 12, a shaft sleeve 4d is fixedly connected to the end of the cutter head 4b, and the shaft sleeve 4d is sleeved on the extending end of the valve plate shaft 12. The inner wall of the shaft sleeve 4d is provided with a key groove, and the shaft sleeve 4d is connected with the valve plate shaft by a 12-key
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. The shaft end seal for the valve plate shaft of the flash valve is characterized in that: comprises a sealing pressure plate (3a), a sealing filler pipe (3b) and a sealing bowl (3 d); the sealing pressure plate (3a), the sealing filler pipe (3b) and the sealing bowl (3d) are all provided with shaft holes which can penetrate through a valve plate shaft (12);
the sealing pressure plate (3a) is a flange part, a flange (3a-2) of the sealing pressure plate (3a) is connected with the first end of the sealing filler pipe (3b), and a cylindrical pipe (3a-1) of the sealing pressure plate (3a) extends into the first end of the sealing filler pipe (3 b);
the sealing bowl (3d) comprises a sealing end plate (3d-1), the sealing end plate (3d-1) is connected with the second end of the sealing filler pipe (3b), and the hole diameter of the shaft hole of the sealing end plate (3d-1) is smaller than that of the sealing filler pipe (3 b).
2. The flash valve spool shaft end seal of claim 1, wherein: the flange (3a-2) is provided with a plurality of flange holes, and the flange (3a-2) is connected with the first end of the sealing filler pipe (3b) in a flange mode.
3. The flash valve spool shaft end seal of claim 1, wherein: the sealing bowl (3d) further comprises a pipe sleeve (3d-2) extending axially, the sealing end plate (3d-1) is fixed on the inner side of the pipe sleeve (3d-2), and the pipe sleeve (3d-2) is sleeved on a pipe body of a second pipe of the sealing filler pipe (3 b).
4. The flash valve plate shaft-end seal of any of claims 1-3, wherein: the shaft end seal for the flash valve plate shaft further comprises an outer side sealing plate (3c) and a back pressing plate (3e), the sealing filler pipe (3b) penetrates through the back pressing plate (3e) and penetrates through the outer side sealing plate (3c), and the back pressing plate (3e) is connected to the surface of the outer side sealing plate (3c) facing one side of the sealing stop bowl (3 d).
5. The flash valve, its characterized in that: comprises a shell barrel (2), a bearing (4), a shaft support (5), a shell box (7), a weight shaft, a weight (9), a valve plate (10), a valve plate upper retainer ring (11) and the flash valve plate shaft end seal (3) of claim 4;
the shell box (7) is connected with the shell barrel (2), and the valve plate upper retainer ring (11) and the valve plate (10) are arranged in the shell barrel (2); the valve plate (10) is connected with a valve plate shaft (12) arranged in the shell box (7), the shell box (7) is provided with the shaft end seal (3) for the flash valve plate shaft in a penetrating manner, two ends of the valve plate shaft (12) penetrate through the shell box (7) and the corresponding shaft end seal (3) for the flash valve plate shaft, the sealing filler pipe (3b) is filled with sealing filler, and a shaft platform of the valve plate shaft (12) is arranged in the shell box (7) and is pressed against the sealing end plate (3d-1) towards the outside of the shell box (7); the shaft support (5) is arranged on the outer wall of the shell box (7), the bearing (4) is seated on the shaft support (5), and two extending ends of the valve plate shaft (12) are respectively connected with the corresponding bearings (4); the heavy hammer shaft is connected with an extending end of the valve plate shaft (12), and the heavy hammer (9) is connected with the heavy hammer shaft.
6. The flash valve of claim 5, wherein: the outer side sealing plate (3c) is arranged on the outer wall of the shell box (7), the back pressure plate (3e) is arranged on the inner wall of the shell box (7), and the outer side sealing plate (3c) and the back pressure plate (3e) are fastened through bolts to tightly press the wall plate of the shell box (7).
7. The flash valve according to any one of claims 5-6, wherein: the bearing (4) comprises a tool bearing table (4a) and a tool bit (4b), a pointed bottom groove with a V-shaped cross section is formed in the top surface of the tool bearing table (4a), the tool bit (4b) is a wedge-shaped structural part with a V-shaped cross section, the pointed end of the tool bit (4b) is seated at the groove bottom of the tool bearing table (4a), and the tool bit (4b) can swing in the groove of the tool bearing table (4a) relative to the pointed end of the tool bit (4 b); the cutter head (4b) is fixedly connected with the extending end of the valve plate shaft (12), the tip end of the cutter head (4b) is collinear with the axis of the valve plate shaft (12), and the cutter bearing table (4a) is seated on the shaft support (5).
8. The flash valve of claim 7, wherein: the cutter head (4b) is connected with a shaft sleeve (4d), and the shaft sleeve (4d) is sleeved on the extending end of the valve plate shaft (12).
9. The flash valve of claim 8, wherein: the shaft sleeve (4d) is provided with a key groove, and the shaft sleeve (4d) is connected with the valve plate shaft (12) in a key mode.
10. The flash valve of claim 8, wherein: the bottom surface of the cutter bearing table (4a) is connected with a lower backing plate (4c), and the lower backing plate (4c) is seated on the shaft support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920562649.0U CN209943670U (en) | 2019-04-23 | 2019-04-23 | Shaft end seal for valve plate shaft of flash valve and flash valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920562649.0U CN209943670U (en) | 2019-04-23 | 2019-04-23 | Shaft end seal for valve plate shaft of flash valve and flash valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943670U true CN209943670U (en) | 2020-01-14 |
Family
ID=69129350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920562649.0U Active CN209943670U (en) | 2019-04-23 | 2019-04-23 | Shaft end seal for valve plate shaft of flash valve and flash valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107598A (en) * | 2019-06-12 | 2019-08-09 | 广州泰科节能环保科技有限公司 | A kind of angle bearing |
-
2019
- 2019-04-23 CN CN201920562649.0U patent/CN209943670U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107598A (en) * | 2019-06-12 | 2019-08-09 | 广州泰科节能环保科技有限公司 | A kind of angle bearing |
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