CN217583627U - Quick replacement sealed rotary joint - Google Patents
Quick replacement sealed rotary joint Download PDFInfo
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- CN217583627U CN217583627U CN202221715997.5U CN202221715997U CN217583627U CN 217583627 U CN217583627 U CN 217583627U CN 202221715997 U CN202221715997 U CN 202221715997U CN 217583627 U CN217583627 U CN 217583627U
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- seal ring
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Abstract
The utility model relates to a quick replacement sealed rotary joint, including the hollow shaft, the left side movable mounting of hollow shaft has connection structure, the surface movable mounting of hollow shaft has the apron that compresses tightly, the left side fixed mounting of hollow shaft has metal seal ring, metal seal ring's left side laminating has graphite sealing ring. The utility model discloses a set up the second screw, demolish the second screw earlier, take off the single pass, then demolish the fourth screw, take off by the seal ring seat, the graphite sealing ring, guide screw, a spring, second sealing washer and stop screw, can directly renew article quick change unit, then install the fourth screw, carry out rigidity to the quick change unit, the installation single pass is with the single pass with the second screw, quick change unit and casing link into an integrated entity, online maintenance can be accomplished, realized under the not shut-down state of equipment, the inside vulnerable graphite sealing ring of online quick change rotary joint, the problem of rotary joint revealing has been solved in quick maintenance.
Description
Technical Field
The utility model belongs to the technical field of the rotary joint technique and specifically relates to a rotary joint that quick replacement is sealed is related to.
Background
The rotary joint is a key part in equipment connection, and the working condition of using the rotary joint generally does not have the condition of mounting a spare rotary joint because the rotary joint can rotate coaxially with a rotary shaft core line of equipment in equipment mounting, and the rotary joint is generally mounted at the tail end of rotary equipment.
However, the rotary joint itself belongs to a vulnerable spare part, abnormal leakage in various service life periods often occurs in the existing rotary joint, a friction pair of a main seal of the existing rotary joint is composed of two different sealing materials of graphite and metal, when the graphite sealing structure is subjected to external forces such as impact vibration, medium overpressure, water hammer impact and the like, the sealing ring is damaged and cracked, the existing technology cannot be repaired by itself, off-line replacement and maintenance of products are solutions of the prior art, and therefore the rotary joint with the quick sealing replacement is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art exists, the utility model aims at providing a quick replacement sealed rotary joint, through setting up the second screw, when rotary joint takes place to damage, demolish the second screw earlier, take off the single-pass, then demolish the fourth screw, take off by sealed ring seat, the graphite sealing ring, guide screw, a spring, second sealing washer and stop screw, can directly change new article quick change unit, then install the fourth screw, carry out the rigidity to the quick change unit, the installation single-pass is with the single-pass with the second screw, quick change unit and casing link into an organic whole, online maintenance can be accomplished, realized under the not shut-down state of equipment, the inside vulnerable graphite sealing ring of online quick replacement rotary joint, reached the problem that quick maintenance solution rotary joint revealed.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a rotary joint capable of rapidly replacing a seal comprises a hollow shaft, wherein a connecting structure is movably mounted on the left side of the hollow shaft, and a single-way is movably arranged on the left side of the connecting structure;
the connecting structure comprises a compression cover plate, a bearing, a shell, a metal sealing ring, a graphite sealing ring, a second sealing ring, a guide pin, a second screw, a limit screw and a fourth screw, wherein the compression cover plate is movably mounted on the outer surface of the hollow shaft, the bearing is sleeved on the outer surface of the hollow shaft, the shell is movably mounted on the outer portion of the bearing, the metal sealing ring is fixedly mounted on the left side of the hollow shaft, the graphite sealing ring is laminated on the left side of the metal sealing ring, the second sealing ring is movably mounted on the outer surface of the left side of the graphite sealing ring, the guide pin is connected to the inner thread of the second sealing ring, the second screw is connected to the left side of the shell, the limit screw is connected to the bottom thread of the graphite sealing ring, and the fourth screw is connected to the bottom thread of the second sealing ring.
Preferably, the internal thread of the pressing cover plate is connected with two first screws, the pressing cover plate is fixedly connected with the shell through the two first screws, the number of the bearings is two, the two bearings are respectively located at the step positions of the left wall and the inner right wall in the shell, and the pressing cover plate presses one of the bearings through the first screws.
Preferably, the other one left side fixed mounting of bearing has an oil seal seat, the inside threaded connection of casing has the third screw, the third screw is close to the interior diapire of casing, the oil seal seat passes through third screw and shells inner wall's step department fixed connection, the slot has been seted up to the inside of oil seal seat, the inside of slot is provided with the oil blanket, the outside threaded connection of hollow shaft has the gland.
Preferably, the constant head tank has been seted up at the left side top of hollow shaft, the internal thread of constant head tank is connected with the screw that splines, metallic seal ring's right side is through the screw and constant head tank fixed connection that splines, the partial internal diameter on metallic seal ring right side and the left external diameter laminating of hollow shaft.
Preferably, the inner diameter slot has been seted up to metal seal ring's inner wall, the inside joint of inner diameter slot has first sealing washer, the inner wall of first sealing washer and the laminating of the left side external diameter of hollow shaft, first sealing washer is located the left side of spline screw.
Preferably, the right side laminating of single-pass has the seal ring seat, the seal groove has been seted up to the internal diameter of seal ring seat, the graphite sealing ring passes through the second sealing washer and pegs graft with the seal groove, stop screw's left side run through second sealing washer and graphite sealing ring and with seal ring seat threaded connection, the inside fixed mounting of seal ring seat has guide screw, guide screw's surface has cup jointed the spring, the one end and the guide screw fixed connection of spring, the other end of spring and the left side laminating of graphite sealing ring.
Preferably, the number of the threaded holes is two, the right side of the second screw penetrates through the right side of the single-way and the second sealing ring and is in threaded connection with one of the threaded holes, and the right side of the fourth screw penetrates through the second sealing ring and is in threaded connection with the other threaded hole.
To sum up, the utility model discloses a following at least one kind of useful technological effect:
1. through setting up the second screw, when rotary joint takes place to damage, demolish the second screw earlier, take off the single pass, then demolish the fourth screw, take off by the sealing ring seat, the graphite sealing ring, guide screw, a spring, second sealing washer and stop screw, can directly renew article quick change unit, then install the fourth screw, carry out the rigidity to the quick change unit, the installation single pass is with the second screw with the single pass, quick change unit and casing link into an integrated entity, online maintenance can be accomplished, realized under the not shut-down state of equipment, the inside vulnerable graphite sealing ring of online quick change rotary joint, reached quick maintenance and solved the problem that rotary joint revealed.
2. Through setting up the casing, first screw, the second screw, the third screw, fourth screw and stop screw, gland plate among the connection structure, a housing, metal seal ring, graphite sealing ring, second sealing washer and other parts are all through the casing, first screw, the second screw, the third screw, fourth screw and stop screw are fixed in the outside of hollow shaft, thereby form a wholeness, when making when arbitrary one part of connection structure inside damages, all can dismantle and change it, need not to change whole rotary joint, on the one hand, rotary joint's maintenance duration has been shortened, on the other hand has also reduced rotary joint's use cost.
Drawings
Fig. 1 is a first perspective view of a quick seal change rotary joint of the present invention;
fig. 2 is a first cross-sectional view of a quick seal change swivel of the present invention;
fig. 3 is a second perspective view of a quick seal change swivel joint of the present invention;
fig. 4 is a second cross-sectional view of a quick seal change swivel of the present invention;
fig. 5 is a cross-sectional view of the utility model of a rotary joint connection structure for quick replacement sealing.
Reference numerals are as follows: 1. a hollow shaft; 2. a connecting structure; 201. pressing the cover plate; 202. a bearing; 203. a housing; 204. a metal seal ring; 205. a graphite seal ring; 206. a second seal ring; 207. a guide pin; 208. a second screw; 209. a limit screw; 210. a fourth screw; 3. and (6) single pass.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-5, the rotary joint for fast replacing seal disclosed by the utility model comprises a hollow shaft 1, a connecting structure 2 is movably installed on the left side of the hollow shaft 1, and a single-way 3 is movably arranged on the left side of the connecting structure 2;
In fig. 1 and 5, two bearings 202 are disposed at steps on two sides of an inner hole of a housing 203, a pressing cover plate 201 presses one of the bearings 202 through a first screw, and the pressing cover plate 201 is mainly used for fixing and limiting the bearing 202, so that the bearing 202 is more stable inside the housing 203.
In fig. 1 and 5, an oil seal seat is arranged in a stepped inner hole of a shell 203 outside another bearing 202 and is connected with the shell 203 into a whole by a third screw, a pressing nut is arranged outside the bearing 202, and an oil seal is arranged in a groove of the oil seal seat and is in contact sealing with the pressing nut at the position of the outer diameter of the pressing nut.
In fig. 1 and 5, the hollow shaft 1 is arranged inside the inner diameters of two bearings 202, the shaft shoulder of the hollow shaft 1 is in plane contact with one of the bearings 202, the pressing nut is in threaded connection with the hollow shaft 1 and presses the other bearing 202 tightly, the rotation-stopping screw is arranged in the positioning groove of the hollow shaft 1 and axially limits the metal sealing ring 204, and the first sealing ring is arranged in the inner diameter groove of the metal sealing ring 204 and is in contact sealing with the outer diameter of the hollow shaft 1.
In fig. 1 and 5, an outer diameter of one end of the graphite sealing ring 205 is inserted into an inner diameter of the sealing ring seat, the second sealing ring 206 is disposed in the sealing groove of the sealing ring seat and is sealed in contact with the outer diameter of the graphite sealing ring 205, and the limit screws 209 are disposed on an end surface of one side of the sealing ring seat, symmetrically disposed along a diameter direction, and integrally connect the graphite sealing ring 205, the second sealing ring 206 and the sealing ring seat.
In fig. 1 and 5, the inner diameter of the spring is sleeved on the outer diameter of the guide pin 207, the guide pins 207 are arranged on one side end surface of the seal ring seat and arranged along the circumferential array, one end of the spring is in plane contact with the end surface of the graphite seal ring 205, the other end of the spring is in plane contact with the step surface of the guide pin 207, and the pretightening force of the spring can be adjusted by adjusting the position of the guide pin 207.
In fig. 1 and 5, the single-pass 3 is disposed outside the sealing ring seat, and the second screw 208 connects the sealing ring seat, the housing 203, and the single-pass 3 into a whole, wherein the graphite sealing ring 205, the spring, the guide pin 207, the second sealing ring 206, the sealing ring seat, and the limit screw 209 form an integrated quick-change unit.
The implementation principle of the embodiment is as follows: when the rotary joint with the quick change seal is used, when the rotary joint is damaged, the second screw 208 is firstly removed, the single-way unit 3 is taken down, then the fourth screw 210 is removed, the sealing ring seat, the graphite sealing ring 205, the guide screw, the spring, the second sealing ring 206 and the limit screw 209 are taken down, the new product quick-change unit can be directly replaced, after the new product quick-change unit is replaced, the fourth screw 210 is installed, the quick-change unit is fixed in position, the single-way unit 3 is installed, the single-way unit 3, the quick-change unit and the shell 203 are connected into a whole through the second screw 208, the online maintenance of the rotary joint can be completed, the problems that the rotary joint belongs to a vulnerable spare part, the existing rotary joint is always subjected to abnormal leakage in various service lives, a friction pair of a main seal of the existing rotary joint is formed by graphite and metal in different soft and hard sealing materials are solved, the sealing ring is damaged and cracks are caused when the graphite is subjected to external forces such as impact vibration, medium overpressure, water hammer impact and the existing technology cannot be repaired, and the replacement and the problem of the existing technical scheme is solved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A quick replacement sealed rotary joint, includes hollow shaft (1), its characterized in that: a connecting structure (2) is movably mounted on the left side of the hollow shaft (1), and a single channel (3) is movably arranged on the left side of the connecting structure (2);
connection structure (2) is including housing plate (201), bearing (202), casing (203), metal seal ring (204), graphite seal ring (205), second sealing washer (206), guide pin (207), second screw (208), stop screw (209) and fourth screw (210), the surface movable mounting of hollow shaft (1) has housing plate (201), bearing (202) have been cup jointed to the surface of hollow shaft (1), the outside movable mounting of bearing (202) has casing (203), the left side fixed mounting of hollow shaft (1) has metal seal ring (204), graphite seal ring (205) have been laminated to the left side of metal seal ring (204), the left side surface movable mounting of graphite seal ring (205) has second sealing washer (206), the internal thread of second sealing washer (206) is connected with guide pin (207), the left side threaded connection of casing (203) has second screw (208), the bottom threaded connection of graphite seal ring (205) has stop screw (209), the bottom threaded connection of second sealing washer (206) has fourth screw (210).
2. A quick-change seal swivel joint as claimed in claim 1, wherein: the inner thread of the compression cover plate (201) is connected with two first screws, the compression cover plate (201) is fixedly connected with the shell (203) through the two first screws, the number of the bearings (202) is two, the two bearings (202) are respectively located at the step positions of the left wall and the right wall in the shell (203), and the compression cover plate (201) compresses one of the bearings (202) through the first screws.
3. A quick-change seal swivel joint as claimed in claim 1, wherein: the other one left side fixed mounting of bearing (202) has the oil blanket seat, the inside threaded connection of casing (203) has the third screw, the third screw is close to the interior diapire of casing (203), the oil blanket seat is through the step department fixed connection of third screw with casing (203) inner wall, the slot has been seted up to the inside of oil blanket seat, the inside of slot is provided with the oil blanket, the outside threaded connection of hollow shaft (1) has the gland.
4. The quick-change seal swivel joint of claim 1, wherein: the constant head tank has been seted up at the left side top of hollow shaft (1), the inside threaded connection of constant head tank has the screw of splining, the right side of metal seal ring (204) is through splining screw and constant head tank fixed connection, the partial internal diameter on metal seal ring (204) right side and the left external diameter laminating of hollow shaft (1).
5. The quick-change seal swivel joint of claim 1, wherein: the inner wall of metal seal ring (204) has been seted up the internal diameter slot, the inside joint of internal diameter slot has first sealing washer, the inner wall of first sealing washer and the laminating of the left side external diameter of hollow shaft (1), first sealing washer is located the left side of the screw that splines.
6. The quick-change seal swivel joint of claim 1, wherein: the right side laminating of single expert (3) has sealed ring seat, the seal groove has been seted up to the internal diameter of sealed ring seat, graphite sealing ring (205) are pegged graft with the seal groove through second sealing washer (206), the left side of stop screw (209) run through second sealing washer (206) and graphite sealing ring (205) and with sealed ring seat threaded connection, the inside fixed mounting of sealed ring seat has guide screw, guide screw's surface has cup jointed the spring, the one end and the guide screw fixed connection of spring, the other end of spring and the left side laminating of graphite sealing ring (205).
7. The quick-change seal swivel joint of claim 1, wherein: two threaded holes are formed in the shell (203), the right side of the second screw (208) penetrates through the right side of the single-way (3) and the second sealing ring (206) and is in threaded connection with one of the threaded holes, and the right side of the fourth screw (210) penetrates through the second sealing ring (206) and is in threaded connection with the other threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221715997.5U CN217583627U (en) | 2022-07-06 | 2022-07-06 | Quick replacement sealed rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221715997.5U CN217583627U (en) | 2022-07-06 | 2022-07-06 | Quick replacement sealed rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217583627U true CN217583627U (en) | 2022-10-14 |
Family
ID=83533416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221715997.5U Active CN217583627U (en) | 2022-07-06 | 2022-07-06 | Quick replacement sealed rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217583627U (en) |
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2022
- 2022-07-06 CN CN202221715997.5U patent/CN217583627U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Swivel Joint for Quick Replacement of Seals Effective date of registration: 20221205 Granted publication date: 20221014 Pledgee: Tengzhou sub branch of Postal Savings Bank of China Ltd. Pledgor: SHANDONG FEIYUE MACHINERY Co.,Ltd. Registration number: Y2022980024670 |