CN209909222U - Slurry ball valve for shield machine - Google Patents
Slurry ball valve for shield machine Download PDFInfo
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- CN209909222U CN209909222U CN201920642052.7U CN201920642052U CN209909222U CN 209909222 U CN209909222 U CN 209909222U CN 201920642052 U CN201920642052 U CN 201920642052U CN 209909222 U CN209909222 U CN 209909222U
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Abstract
A mud ball valve for a shield machine adopts an upper support structure and a lower support structure which are formed by a support sleeve and a support shaft, and supports a ball body in a valve cavity in the middle of the valve cavity, so that thrust on the ball body generated by the pressure of a mud medium is borne by the support structure when the valve is controlled to be opened and closed, the valve rod is prevented from being subjected to lateral thrust from the ball body, the abrasion of the valve rod is greatly reduced, and the possibility of fracture of the valve rod due to stress concentration caused by local abrasion is avoided; the valve seat is provided with a sealing structure for preventing the valve seat from being washed away, the outer ring of the valve seat is processed into a step structure, the screw holes are formed in the periphery of the end face of the support ring, one end of the pressing plate is locked with the support ring through the bolts, the other end of the pressing plate is pressed on the step face of the valve seat, and the valve seat is pressed in the support ring, so that a slurry medium cannot wash the valve seat away to cause sealing failure of the valve, the problem that the valve seat is washed away due to washing of the slurry medium in the using process of the valve is thoroughly solved, and the service life of the valve is.
Description
Technical Field
The utility model relates to a shield constructs quick-witted part field, more specifically says, especially relates to a mud ball valve for shield constructs machine.
Background
With the continuous progress of society, many convenient projects have been shifted to underground construction, such as: underground comprehensive pipe gallery engineering, submarine tunnel engineering, street tunnel engineering, underground transportation hub engineering and the like are widely completed by using a shield machine to perform mechanical operation, the workload of manual excavation is greatly reduced, and the engineering quality is effectively ensured.
The shield machine can generate a large amount of slurry in the tunneling process, the discharge of the slurry needs to be controlled by a slurry valve, and the adopted valve needs to be small in size, light in weight and flexible to operate on the premise of limited installation space; the common three-piece type fixed ball valve has larger structural size and weight, and the valve seat is easy to be washed away by slurry media to cause valve damage; in the valve, the valve rod is directly contacted with the valve body, the contact part is continuously rubbed with slurry in the rotating process of the valve rod, and meanwhile, the valve rod is required to bear unilateral thrust generated by slurry medium pressure from the aspect of a ball body, so that the friction damage of the contact part of the valve rod and the valve body is greatly improved, and as the medium thrust is unidirectional, a wear pit on one side of the valve rod is larger and larger, so that the valve rod is damaged, and even the pit is broken due to stress concentration.
The shield machine is characterized in that a slurry medium is generated in the tunneling process of the shield machine, all parts in the valve are stained with slurry, when the shield machine stops working in stages, the slurry medium can be dried and formed on the parts in the valve to form a slurry block, and when the shield machine is used next time, the slurry block dried and formed on the parts in the valve is easy to damage the parts in the valve to cause sealing failure when the valve is opened and closed.
The mud medium has great pressure at the output in-process, and the valve is in the use operation of going on and off constantly, and conventional three-piece formula fixed ball valve, disk seat only inlay in the brace ring, do not set up scour protection deprotection, and the disk seat of inlaying in the brace ring very easily causes valve seal failure for the mud medium dashes out like this.
SUMMERY OF THE UTILITY MODEL
The utility model discloses improve prior art to above-mentioned shortcoming, provide a mud ball valve for shield constructs machine, it adopts two formula fixed ball structures, and small light in weight has overcome the defect of three formula fixed ball valves usually structurally in inside, is particularly suitable for the emission that is used for controlling mud on the shield constructs the machine, and technical scheme is as follows:
a mud ball valve for a shield machine comprises a valve body with a hollow structure, wherein the left end and the right end of the valve body are respectively provided with a fluid inlet and outlet channel, one end of the valve body is connected with a valve cover, the upper end and the lower end of the valve body are respectively provided with a through hole, a ball body is movably arranged in the valve body, the ball body is provided with a counter bore corresponding to the through hole, the peripheral wall of the counter bore is connected with an antifriction sleeve, the ball body is of the hollow structure and respectively corresponds to the channels communicated with the left end and the right end of the valve body, a support ring is respectively arranged between the two ends of the ball body and the valve cover, a spring is respectively embedded at one side of the valve body and the valve cover of the support ring, a valve seat is embedded at one side of the ball body, a pressing plate is arranged at the outer side of the valve seat, the valve seat is, and the valve seat is fixed by the pressing plate to prevent the valve seat from falling off. The lower end of the valve body is covered with a bottom cover at a through hole, a supporting shaft penetrates through the through hole, one end of the supporting shaft penetrates through a counter bore at the lower end of the ball body, the bottom of the counter bore at the lower end of the ball body is connected with a thrust pad, the upper end of the valve body is connected with a supporting sleeve at the through hole, the supporting sleeve is of a hollow structure and penetrates through and is communicated with the valve body, one end of the supporting sleeve penetrates through the counter bore at the upper end of the ball body, a gland, a connecting frame and a driving device are sequentially connected to the upper portion of the supporting sleeve from bottom to top, the driving device adopts a hydraulic device, a pneumatic device and the like to achieve automatic control of the slurry ball valve, the inner wall of the gland is communicated with the supporting sleeve, filler is embedded at the joint between the gland and the inner wall of the supporting sleeve, a valve rod is connected to the lower portion of, The valve body is arranged in the ball body, the pressure cover and the supporting sleeve are arranged above a counter bore at the upper end of the ball body, one side of the top of the valve body is connected with the flushing component, and one side of the bottom of the valve body is connected with the discharging component.
The tail end of the valve rod extends outwards and is made to be of a stepped structure, the bottom of the supporting sleeve is matched with the tail end of the valve rod, and the bottom of the supporting sleeve and the tail end of the valve rod are horizontally arranged.
One end of the valve seat is embedded in the support ring, the other end of the valve seat is of a stepped structure, a pressing plate is embedded in a concave part of the stepped structure of the valve seat, the pressing plate is fixedly connected with the support ring through a bolt, and the valve seat is in contact with the ball body at a convex part of the stepped structure.
The valve body is connected with the support sleeve, the support sleeve is connected with the gland and the gland is connected with the connecting frame through bolts, and the bolts are arranged in a staggered mode.
And each end angle of the connecting frame is connected with the driving device through a bolt.
The filler is a sealing material.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model supports the ball body in the valve cavity in the middle of the valve cavity by adopting the upper and lower supporting structures consisting of the supporting sleeve and the supporting shaft, thereby realizing that the thrust generated by the pressure of slurry medium to the ball body is born by the supporting structure when the valve is controlled to be opened and closed, avoiding the valve rod from receiving the lateral thrust from the ball body, greatly reducing the abrasion of the valve rod and avoiding the possibility of the valve rod from being broken due to stress concentration caused by local abrasion;
furthermore, the utility model is provided with the flushing component and the discharging component specially aiming at the slurry medium, so that when the shield machine stops using in the stage, the inside of the valve is cleaned, and the service life of the valve can be effectively prolonged;
further, the utility model discloses be provided with the seal structure that the scour protection takes off on the disk seat, through processing into the stair structure with the disk seat outer lane, set up the screw around the lock ring terminal surface, with bolt and lock ring for the one end of clamp plate, the other end is pressed on the step face of disk seat, compress tightly the disk seat in the lock ring, the mud medium can't dash to take off the disk seat like this and cause the valve seal to become invalid, thoroughly solved the valve in the use, the phenomenon of dashing to take off the disk seat because of the mud medium erodees, the life of valve has been improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described as follows:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the upper support structure of the present invention;
FIG. 3 is an enlarged view of the valve seat assembly of the present invention;
the method comprises the following steps: the valve comprises a valve body 1, a valve cover 2, a spring 3, a support ring 4, a pressure plate 5, a valve seat 6, a ball 7, a through hole 8, a support sleeve 9, a packing 10, a gland 11, a connecting frame 12, a valve rod 13, a driving device 14, a flushing assembly 15, a discharging assembly 16, an antifriction sleeve 17, a thrust pad 18, a support shaft 19, a bottom cover 20, a channel 21, a counter bore 22, a valve seat assembly 23 and a bolt 24.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present invention will be described in further detail below with reference to the following drawings, in which:
referring to fig. 1 to 3, a slurry ball valve for a shield machine comprises a valve body 1 having a hollow structure, wherein the left and right ends of the valve body 1 are respectively provided with a fluid inlet/outlet passage 21, one end of the valve body 1 is connected with a valve cover 2, the upper and lower ends of the valve body 1 are respectively provided with a through hole 8, a ball 7 is movably arranged in the valve body 1, the ball 7 is provided with a counter bore 22 corresponding to the through hole 8, the peripheral wall of the counter bore 22 is connected with an anti-wear sleeve 17, the ball 7 has a hollow structure and is respectively correspondingly communicated with the passages 21 at the left and right ends of the valve body 1, a support ring 4 is respectively arranged between the two ends of the ball 7 and the valve body 1 and the valve cover 2, a spring 3 is respectively embedded in one side of the valve body 1 and the valve cover 2 of the support ring 4, a valve seat 6 is embedded in one side of the ball 7, a pressure plate, the valve seat assembly 23 is formed, the valve seat assembly 23 is provided with a plurality of groups of pressing plates 5 which are respectively and uniformly distributed around a supporting ring 4, a valve seat 6 is fixedly prevented from being washed away by the pressing plates 5, the lower end of a valve body 1 is covered with a bottom cover 20 at a through hole 8, a supporting shaft 19 is arranged in the through hole 8 in a penetrating manner, one end of the supporting shaft 19 is arranged in a counter bore 22 at the lower end of a ball 7 in a penetrating manner, the bottom of the counter bore 22 at the lower end of the ball 7 is connected with a thrust pad 18, the upper end of the valve body 1 is connected with a supporting sleeve 9 at the through hole 8, the supporting sleeve 9 is of a hollow structure and penetrates and is communicated with the valve body 1, one end of the supporting sleeve 9 is arranged in the counter bore 22 at the upper end of the ball 7 in a penetrating manner, a pressing cover 11, a connecting frame 12 and a driving device 14 are sequentially connected above the supporting sleeve 9 from bottom to top, the inside of the pressing cover, the lower part of the driving device 14 is connected with a valve rod 13, the valve rod 13 sequentially penetrates through the connecting frame 12, the gland 11 and the supporting sleeve 9 and is arranged above a counter bore 22 at the upper end of the ball body 7, one side of the top of the valve body 1 is connected with a flushing component 15, and one side of the bottom of the valve body 1 is connected with a discharging component 16.
The tail end of the valve rod 13 extends outwards and is in a stepped structure, the bottom of the support sleeve 9 is matched with the tail end of the valve rod 13, the bottom of the support sleeve 9 and the tail end of the valve rod 13 are horizontally arranged, the valve body 1 and the support sleeve 9, the support sleeve 9 and the gland 11 and the connecting frame 12 are respectively connected through bolts 24, the bolts 24 and the bolts 24 are respectively arranged in a staggered mode, each end corner of the connecting frame 12 is connected with the driving device 14 through the bolts 24, and the packing 10 is sealing material.
By taking the working principle to combine the structure as an example, the utility model adopts a two-piece structure, the valve body 1 and the valve cover 2 form the shell of the valve, the valve seat 6, the pressing plate 5, the supporting ring 4 and the spring 3 form an anti-impact-release sealing structure with compensation performance, annular grooves are respectively processed on the inner sides of the valve body 1 and the valve cover 2, and the anti-impact-release sealing structure is arranged in the respective grooves; the upper side and the lower side of the valve body 1 are respectively provided with a boss, a sealing screw hole is arranged in the middle of the boss, and a sealing plug is arranged on the screw hole to form a flushing structure and a discharging structure so as to be used when the inner cavity of the valve is flushed;
the utility model discloses an among the under bracing structure, back shaft 19 passes through the fixed its axial position of bottom 20, go up support sleeve 9 among the bearing structure, be provided with the annular groove, and constitute sealed chamber with the annular groove that sets up in the gland 11 and valve rod 13, put into sealed intracavity with filler 10, gland 11 passes through bolt 24 with support sleeve 9 and locks, and extrude filler 10 in the sealed intracavity, thereby realize that valve rod 13 department is sealed, all places that need seal of a whole set of valve, all be provided with sealing material and seal, link 12 passes through bolt 24 with gland 11 and fastens, the utility model discloses a drive arrangement 14, accessible link 12 is connected with the valve, makes the switching action to the valve, and drive arrangement 14 adopts hydraulic means, in order to realize the automatic control to the mud ball valve.
The upper end and the lower end of the middle part of the valve body 1 are provided with through holes 8 which are communicated with a valve cavity, a ball body 7 is arranged in the valve cavity, the upper end and the lower end of the ball body 7 are provided with counter bores 22, anti-wear sleeves 17 are arranged in the counter bores 22, a support sleeve 9 provided with a valve rod 13 passes through the through hole 8 at the upper end of the middle part of the valve body 1, the tail end of the support sleeve is arranged in the anti-wear sleeve 17 of the counter bore 22 at the upper end of the ball body 7 in the valve cavity, and; meanwhile, the supporting shaft 19 is arranged in the antifriction sleeve 17 of a counter bore 22 at the lower end of the ball 7 in the valve cavity through the through hole 8 at the lower end of the valve body 1 and is fixed in position through a bottom cover 20 to form a lower supporting structure of the ball 7; the utility model discloses an upper and lower bearing structure that adoption support cover 9 and back shaft 19 constitute supports spheroid 7 in the valve pocket in the middle of the valve pocket, when having realized that the valve does on-off control, bears the produced thrust to spheroid 7 of the pressure of mud medium through bearing structure, has avoided valve rod 13 to receive the lateral thrust who comes from spheroid 7, has alleviateed valve rod 13's wearing and tearing greatly, has avoided valve rod 13 to receive stress concentration and cracked possibility appear by local wear.
One end of the valve seat 6 is embedded in the support ring 4, the other end of the valve seat is of a stepped structure, a pressing plate 5 is embedded in a concave part of the stepped structure of the valve seat 6, the pressing plate 5 is fixedly connected with the support ring 4 through a bolt 24, and the valve seat 6 is in contact with the ball body 7 at a convex part of the stepped structure; the utility model discloses be provided with the seal structure that the scour protection takes off on disk seat 6, through processing into stair structure with 6 outer lanes of disk seat, set up the screw around 4 terminal surfaces of lock ring, bolt 24 and 4 locks of lock ring for the one end of clamp plate 5, the other end is pressed on the step face of disk seat 6, compress tightly disk seat 6 in lock ring 4, the mud medium can't dash to take off disk seat 6 and cause the valve seal inefficacy like this, thoroughly solved the valve in the use, the phenomenon of dashing off disk seat 6 because of the mud medium erodees, the life of valve has been improved.
Further, the utility model discloses a specially to the mud medium, be provided with washing component 15 and discharge assembly 16 to when the shield constructs the machine stage and stops using, clear up the valve is inside, can effectively improve the life of valve.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a mud ball valve for shield constructs machine, is including being hollow structure's valve body (1), and passageway (21) that fluid business turn over are seted up respectively to both ends about this valve body (1), its characterized in that: one end of the valve body (1) is connected with a valve cover (2), the upper end and the lower end of the valve body are respectively provided with a through hole (8), a ball body (7) is movably arranged in the valve body (1), the ball body (7) is provided with a counter bore (22) corresponding to the through hole (8), the peripheral wall of the counter bore (22) is connected with an antifriction sleeve (17), the ball body (7) is of a hollow structure and is respectively correspondingly communicated with a channel (21) at the left end and the right end of the valve body (1), a support ring (4) is arranged between the two ends of the ball body (7) and the valve body (1) and the valve cover (2), a spring (3) is respectively embedded in one side of the valve body (1) and the valve cover (2), a valve seat (6) is embedded in one side of the ball body (7), a pressing plate (5) is arranged on the outer side of the valve seat (6), and the valve, the valve seat component (23) is formed, the valve seat component (23) is provided with a plurality of groups which are uniformly distributed around the support ring (4), the lower end of the valve body (1) is covered with a bottom cover (20) at the through hole (8), a support shaft (19) is arranged in the through hole (8) in a penetrating manner, one end of the support shaft (19) is arranged in a counter bore (22) at the lower end of the ball body (7) in a penetrating manner, the bottom of the counter bore (22) at the lower end of the ball body (7) is connected with a thrust pad (18), the upper end of the valve body (1) is connected with a support sleeve (9) at the through hole (8), the support sleeve (9) is of a hollow structure and penetrates through and is communicated with the valve body (1), one end of the support sleeve (9) is arranged in the counter bore (22) at the upper end of the ball body (7), a gland (11), a connecting frame (12), cover (9) is supported in inside intercommunication of gland (11), and its inner wall is leveled mutually with the inner wall that supports cover (9), and this gland (11) and the inner wall that supports cover (9) are inlayed in the junction between it and are had filler (10), the below of drive arrangement (14) is connected with valve rod (13), and link (12), gland (11) and support cover (9) are worn to locate in proper order in this valve rod (13) to set up in counter bore (22) top of spheroid (7) upper end, top one side of valve body (1) is connected with washes subassembly (15), and bottom one side is connected with emission subassembly (16).
2. The mud ball valve for the shield tunneling machine according to claim 1, wherein: the tail end of the valve rod (13) extends outwards and is made to be in a step structure, the bottom of the support sleeve (9) is matched with the tail end of the valve rod (13), and the bottom of the support sleeve (9) is horizontally arranged with the tail end of the valve rod (13).
3. The mud ball valve for the shield tunneling machine according to claim 1, wherein: one end of the valve seat (6) is embedded in the support ring (4), the other end of the valve seat is of a stepped structure, a pressing plate (5) is embedded in a concave part of the stepped structure of the valve seat (6), the pressing plate (5) is fixedly connected with the support ring (4) through a bolt (24), and the valve seat (6) is in contact with the ball body (7) at a convex part of the stepped structure.
4. The mud ball valve for the shield tunneling machine according to claim 1, wherein: the valve body (1) is connected with the support sleeve (9), the support sleeve (9) is connected with the gland (11), the gland (11) is connected with the connecting frame (12) through bolts (24), and the bolts (24) are arranged in a staggered mode.
5. The mud ball valve for the shield tunneling machine according to claim 1, wherein: and each end angle of the connecting frame (12) is connected with the driving device (14) through a bolt (24).
6. The mud ball valve for the shield tunneling machine according to claim 1, wherein: the filler (10) is a sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642052.7U CN209909222U (en) | 2019-05-07 | 2019-05-07 | Slurry ball valve for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642052.7U CN209909222U (en) | 2019-05-07 | 2019-05-07 | Slurry ball valve for shield machine |
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| Publication Number | Publication Date |
|---|---|
| CN209909222U true CN209909222U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920642052.7U Active CN209909222U (en) | 2019-05-07 | 2019-05-07 | Slurry ball valve for shield machine |
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| Country | Link |
|---|---|
| CN (1) | CN209909222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137495A (en) * | 2021-05-08 | 2021-07-20 | 安徽铜都流体科技股份有限公司 | A prevent blockking up mud ball valve for shield structure machine |
| CN113154092A (en) * | 2021-04-01 | 2021-07-23 | 浙江上工阀门有限公司 | Ultra-strong sealing high-performance slurry duplex ball valve capable of removing impurities under pressure for shield machine |
-
2019
- 2019-05-07 CN CN201920642052.7U patent/CN209909222U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154092A (en) * | 2021-04-01 | 2021-07-23 | 浙江上工阀门有限公司 | Ultra-strong sealing high-performance slurry duplex ball valve capable of removing impurities under pressure for shield machine |
| CN113137495A (en) * | 2021-05-08 | 2021-07-20 | 安徽铜都流体科技股份有限公司 | A prevent blockking up mud ball valve for shield structure machine |
| CN113137495B (en) * | 2021-05-08 | 2023-07-04 | 安徽铜都流体科技股份有限公司 | Anti-blocking mud ball valve for shield tunneling machine |
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