CN218882671U - Rotary joint of expansion hydraulic cylinder - Google Patents
Rotary joint of expansion hydraulic cylinder Download PDFInfo
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- CN218882671U CN218882671U CN202320154306.7U CN202320154306U CN218882671U CN 218882671 U CN218882671 U CN 218882671U CN 202320154306 U CN202320154306 U CN 202320154306U CN 218882671 U CN218882671 U CN 218882671U
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- rotary joint
- rotatory dabber
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- dabber
- hydraulic cylinder
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Abstract
The utility model belongs to the technical field of the rotary joint, especially, rotary joint of harmomegathus pneumatic cylinder, including the connector casing, the inside of connector casing is provided with rotatory dabber, is provided with the abrasionproof between rotatory dabber and the connector casing and decreases the mechanism, and the abrasionproof decreases the mechanism and carries out the spacing regulation action when the inside of rotatory dabber at the connector casing rotates. This expansion and contraction hydraulic cylinder's rotary joint, cup joint the self-lubricating axle sleeve respectively through the upper and lower end surface at rotatory dabber, make rotatory dabber pivoted in-process keep the self-lubricating effect, and the upper and lower setting of self-lubricating axle sleeve, can rotate to rotatory dabber and play the spacing effect of direction, avoid it to rotate to deflect and cause wearing and tearing, and set up two magnetic rings that the magnetic pole on relative surface is the same between the inside of rotatory dabber and connector casing, thereby utilize the same polarity of magnet to repel's principle to keep the spacing rotation of rotatory dabber.
Description
Technical Field
The utility model relates to a rotary joint technical field especially relates to a rotary joint of harmomegathus pneumatic cylinder.
Background
The field of application of rotary joints covers almost every manufacturing industry, such as: metallurgy, machine tools, power generation, petroleum, rubber, plastics, textile, printing and dyeing, pharmacy, cigarette, paper making, food, feed processing and the like; the rotary joint is used for inputting liquid from the pipeline side to the rotary or reciprocating equipment and discharging the liquid from the rotary or reciprocating equipment. From this, it is understood that the sealing performance of the rotary joint is required.
At present rotary joint mainly guarantees rotary joint's sealing performance by higher machining precision, like this to high-speed rotatory service condition, rotary joint's dabber or casing wear and tear very easily, and high-speed rotatory dabber easily can produce the displacement deviation simultaneously for the collision also can cause wearing and tearing between casing and the dabber, produces the oil circuit simultaneously and leaks, so the utility model discloses a solve above-mentioned technical problem not enough.
SUMMERY OF THE UTILITY MODEL
The high-speed rotation of rotary joint's dabber based on current harmomegathus pneumatic cylinder can produce the displacement deviation for the collision also can cause wearing and tearing between casing and the dabber, produces the technical problem that the oil circuit leaked simultaneously, the utility model provides a rotary joint of harmomegathus pneumatic cylinder.
The utility model provides a rotary joint of harmomegathus pneumatic cylinder, including the connector casing, the inside of connector casing is provided with rotatory dabber, rotatory dabber with be provided with the abrasionproof between the connector casing and decrease the mechanism, the abrasionproof decreases the mechanism and is in rotatory dabber carries out the spacing regulation action when the inside of connector casing rotates.
Preferably, the anti-abrasion mechanism comprises a dustproof ring and a steckel seal, wherein the dustproof ring and the steckel seal are sequentially movably sleeved on the outer surface of the upper end of the rotating mandrel from top to bottom.
Through above-mentioned technical scheme, in order to avoid the inside hydraulic oil of connector casing to reveal and place outside dust and get into connector casing inside and cause the wearing and tearing of rotatory dabber, then utilize the dust ring to cup joint the effect that plays the dust proof at the surface of rotatory dabber, the steckel generally is formed by a rubber O type circle and polytetrafluoroethylene circle combination, the steckel has frictional force low, do not have and crawl, the starting force is little, high pressure resistant, advantages such as slot simple structure are applicable to the sealed effect of rotatory dabber.
Preferably, the anti-wear mechanism further comprises two self-lubricating shaft sleeves with different lengths, the self-lubricating shaft sleeves are in long lengths, the inner surfaces of the self-lubricating shaft sleeves are in sliding sleeve connection with the outer surface of the upper end of the rotating mandrel, the outer surfaces of the self-lubricating shaft sleeves are fixedly sleeved with the inner surface of the dust ring and the outer surface of the step seal, and the self-lubricating shaft sleeves are in short lengths.
Through the technical scheme, the self-lubricating shaft sleeve has the characteristics of high bearing capacity, impact resistance, high temperature resistance, strong self-lubricating capacity and the like, and is particularly suitable for heavy load, low speed, reciprocating or swinging and other occasions which are difficult to lubricate and form an oil film, and is not afraid of water flushing and erosion and flushing of other acid liquor, so that abrasion is generated in order to prevent the rotation between the rotary core shaft and the connector shell, the service life of the rotary core shaft is further shortened, the self-lubricating shaft sleeves are respectively sleeved on the outer surfaces of the upper end and the lower end of the rotary core shaft, the self-lubricating effect is kept in the rotary core shaft rotating process, the self-lubricating shaft sleeves are arranged up and down, the guide limiting effect can be realized on the rotation of the rotary core shaft, and abrasion caused by rotation deflection of the self-lubricating shaft sleeve is avoided.
Preferably, the outer surface of self-lubricating axle sleeve has cup jointed the axle sleeve pipe respectively, the surface of axle sleeve pipe with the inner wall fixed connection of connector casing.
Through above-mentioned technical scheme, in order to install the connector shells inner wall to self-lubricating axle sleeve to be provided with the axle sleeve pipe at its surface and protect the installation.
Preferably, the anti-abrasion mechanism further comprises a limiting spring, the limiting spring is movably sleeved on the outer surface of the rotating mandrel, and the upper end and the lower end of the limiting spring are fixedly connected with the surface of one side of the shaft sleeve respectively.
Through above-mentioned technical scheme, in order to support the installation to two upper and lower axle sleeve pipes, realize the spacing regulation of rotatory dabber simultaneously, and then set up the spacing spring that difficult rusty aluminium system was made at its surface, make rotatory dabber by spacing spring encircle the rotation.
Preferably, the abrasionproof decreases the mechanism and still includes two magnetic rings, one of them the internal surface of magnetic ring with the fixed surface that cup joints of rotatory dabber, another the surface of magnetic ring with the inner wall fixed connection of connector casing.
Through above-mentioned technical scheme, the internal surface cover of another magnetic ring is at the surface of one of them magnetic ring, and the magnetic pole on their relative side surface is the same, produces the skew when avoiding rotatory dabber to rotate, and then causes wearing and tearing to set up two magnetic rings that the magnetic pole on relative surface is the same between the inside of rotatory dabber and connector casing, thereby utilize the same polarity of magnet to repel the principle to keep the spacing rotation of rotatory dabber.
Preferably, one end of the connector shell is provided with a screwing end cover, and fixing bolts are distributed on the outer surface of the screwing end cover in an annular array mode.
Through the technical scheme, in order to realize the sealing effect of the connector shell, the screwing end cover is screwed in a threaded screwing mode, the connector shell is pressed on the outer surface of the dust ring, the outer ring inner wall and the connector shell are tightly connected through the fixing bolt, and the sealing performance between the connector shell and the rotating mandrel can be further improved.
The utility model provides a beneficial effect does:
through setting up the abrasionproof and decrease mechanism, can carry out spacing regulation when the inside of rotatory dabber at the connector casing rotates, at the in-process of regulation, play the sealing action of rotatory dabber through dust ring and steckel, rotate and produce wearing and tearing simultaneously in order to prevent between rotatory dabber and the connector casing, thereby cup joint the self-lubricating axle sleeve respectively at the upper and lower end surface of rotatory dabber, make rotatory dabber pivoted in-process keep the self-lubricating action, and the upper and lower setting of self-lubricating axle sleeve, can rotate to rotatory dabber and play the spacing effect of direction, avoid it to rotate to deflect and cause wearing and tearing, and set up two magnetic rings that the magnetic pole of relative surface is the same between the inside of rotatory dabber and connector casing, thereby utilize the spacing rotation that the same polarity of magnet is repelled principle to keep rotatory dabber, thereby avoid high-speed rotation's dabber easily can produce the displacement deviation, make the collision also can cause wearing and tearing between casing and the dabber, produce the oil circuit simultaneously and leak.
Drawings
Fig. 1 is a schematic view of a rotary joint of an expansion and contraction hydraulic cylinder provided by the present invention;
fig. 2 is a perspective view of a limit spring structure of a rotary joint of an expanding and contracting hydraulic cylinder provided by the present invention;
fig. 3 is a perspective view of a dust ring structure of a rotary joint of the collapsible hydraulic cylinder according to the present invention;
fig. 4 is a perspective view of a magnetic ring structure of a rotary joint of an expanding and contracting hydraulic cylinder provided by the present invention.
In the figure: 1. a connector housing; 2. rotating the mandrel; 3. a dust ring; 4. performing steckel; 5. a self-lubricating shaft sleeve; 6. a shaft sleeve; 7. a limiting spring; 8. a magnetic ring; 9. screwing the end cover; 10. and fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
Referring to fig. 1-4, a rotary joint of an expansion hydraulic cylinder comprises a connector housing 1, a rotary mandrel 2 is arranged inside the connector housing 1, an anti-abrasion mechanism is arranged between the rotary mandrel 2 and the connector housing 1, and the anti-abrasion mechanism performs a limiting adjustment action when the rotary mandrel 2 rotates inside the connector housing 1.
In order to avoid 1 inside hydraulic oil of connector casing to reveal and place that external dust gets into 1 inside and cause the wearing and tearing of rotatory dabber 2 of connector casing, then the abrasionproof decreases the mechanism and includes dust ring 3 and ste and seals 4, dust ring 3 and ste seal 4 and cup joint the upper end surface at rotatory dabber 2 with the activity of being from top to bottom in proper order, ste seals 4 and has frictional force low, do not have and creep, the starting force is little, high pressure resistant, advantages such as groove simple structure, be applicable to the sealed effect of rotatory dabber 2.
In order to prevent the abrasion caused by the rotation between the rotary mandrel 2 and the connector shell 1 and further reduce the service life of the rotary mandrel 2, the anti-abrasion mechanism further comprises two self-lubricating shaft sleeves 5 with different lengths, the inner surface of the long self-lubricating shaft sleeve 5 is in sliding sleeve joint with the outer surface of the upper end of the rotary mandrel 2, the outer surface of the long self-lubricating shaft sleeve is fixedly sleeved with the inner surface of the dust ring 3 and the outer surface of the Stent seal 4, the inner surface of the short self-lubricating shaft sleeve 5 is in sliding sleeve joint with the outer surface of the lower end of the rotary mandrel 2, and the self-lubricating shaft sleeve 5 has the characteristics of high bearing capacity, impact resistance, high temperature resistance, strong self-lubricating capacity and the like, and is particularly suitable for occasions which are difficult to lubricate and form an oil film, such as heavy load, low speed, reciprocation or swing and the like, and are not afraid of water flushing and erosion and other acid liquid, so that the self-lubricating shaft sleeve 5 is arranged up and down, the rotary mandrel 2 can play a role of guiding and limiting, and avoid the abrasion caused by the rotation deflection.
In order to install the self-lubricating shaft sleeve 5 on the inner wall of the connector shell 1, the outer surface of the self-lubricating shaft sleeve 5 is respectively and fixedly sleeved with a shaft sleeve 6, and the outer surface of the shaft sleeve 6 is fixedly connected with the inner wall of the connector shell 1.
In order to support the upper shaft sleeve 6 and the lower shaft sleeve 6 and simultaneously realize the limiting adjustment of the rotating mandrel 2, the anti-abrasion mechanism further comprises a limiting spring 7, the limiting spring 7 is movably sleeved on the outer surface of the rotating mandrel 2, and the upper end and the lower end of the limiting spring 7 are respectively fixedly connected with the surface of one side of the upper end shaft sleeve 6 and the lower end shaft sleeve 6.
In order to avoid the offset generated when the rotating mandrel 2 rotates and further cause abrasion, the anti-abrasion mechanism further comprises two magnetic rings 8, wherein the inner surface of one magnetic ring 8 is fixedly sleeved with the outer surface of the rotating mandrel 2, the outer surface of the other magnetic ring 8 is fixedly connected with the inner wall of the connector shell 1, the inner surface of the other magnetic ring 8 is sleeved on the outer surface of one magnetic ring 8, and the magnetic poles of the opposite side surfaces of the two magnetic rings are the same, so that the limit rotation of the rotating mandrel 2 is kept by utilizing the principle that like poles of magnets repel each other.
In order to realize the sealing effect of the connector housing 1, a screwing end cover 9 is arranged at one end of the connector housing 1, fixing bolts 10 are distributed on the outer surface of the screwing end cover 9 in an annular array, the screwing end cover 9 is pressed on the outer surface of the dust ring 3 in a threaded screwing mode, the inner wall of the outer ring is tightly connected with the connector housing 1 through the fixing bolts 10, and the sealing performance between the connector housing 1 and the rotating mandrel 2 can be further improved.
Through setting up the abrasionproof and decrease mechanism, can carry out spacing regulation when rotatory dabber 2 rotates in the inside of connector casing 1, at the in-process of regulation, play the sealed effect of rotatory dabber 2 through dust ring 3 and steckel 4, simultaneously rotate and produce wearing and tearing in order to prevent between rotatory dabber 2 and the connector casing 1, thereby cup joint self-lubricating axle sleeve 5 respectively at the upper and lower end surface of rotatory dabber 2, make rotatory dabber 2 pivoted in-process keep the self-lubricating effect, and self-lubricating axle sleeve 5 sets up from top to bottom, can rotate to rotatory dabber 2 and play the spacing effect of direction, avoid it to rotate to deflect and cause wearing and tearing, and set up two magnetic force rings 8 that the magnetic pole of relative surface is the same between the inside of rotatory dabber 2 and connector casing 1, thereby utilize the principle that like poles of magnet repel each other to keep the spacing rotation of rotatory dabber, thereby avoid high-speed rotation's dabber easily can produce the displacement deviation, make the collision also can cause wearing and tearing between casing and the dabber, produce the oil circuit leakage simultaneously.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a rotary joint of harmomegathus pneumatic cylinder, includes connector casing (1), its characterized in that: the inside of connector casing (1) is provided with rotatory dabber (2), rotatory dabber (2) with be provided with the abrasionproof between connector casing (1) and decrease the mechanism, the abrasionproof decreases the mechanism and is in rotatory dabber (2) is in carry out spacing regulation action when the inside of connector casing (1) rotates.
2. The rotary joint of an expansion and contraction hydraulic cylinder according to claim 1, wherein: the anti-abrasion mechanism comprises a dustproof ring (3) and a Style seal (4), wherein the dustproof ring (3) is sleeved on the outer surface of the upper end of the rotating mandrel (2) in a vertically-sequentially movable manner through the Style seal (4).
3. The rotary joint of an expansion and contraction hydraulic cylinder according to claim 2, wherein: abrasionproof decreases mechanism still includes two self-lubricating axle sleeves (5) of length nonconformity, the long the internal surface of self-lubricating axle sleeve (5) with the upper end surface of rotatory dabber (2) slides and cup joints, and its external surface with the internal surface of dust ring (3) with the external fixed surface of steckel (4) cup joints, the short money the internal surface of self-lubricating axle sleeve (5) with the lower extreme surface of rotatory dabber (2) slides and cup joints.
4. A rotary joint of an expansion and contraction hydraulic cylinder according to claim 3, wherein: the outer surface of the two self-lubricating shaft sleeves (5) is respectively and fixedly sleeved with a shaft sleeve (6), and the outer surface of the shaft sleeve (6) is fixedly connected with the inner wall of the connector shell (1).
5. The rotary joint of an expansion and contraction hydraulic cylinder according to claim 4, wherein: the anti-abrasion mechanism further comprises a limiting spring (7), the limiting spring (7) is movably sleeved on the outer surface of the rotating mandrel (2), and the upper end and the lower end of the limiting spring (7) are fixedly connected with the surface of one side of the shaft sleeve (6) respectively.
6. The rotary joint of an expansion and contraction hydraulic cylinder according to claim 1, wherein: abrasionproof decreases mechanism still includes two magnetic rings (8), one of them the internal surface of magnetic ring (8) with the external fixed surface of rotatory dabber (2) cup joints, another the surface of magnetic ring (8) with the inner wall fixed connection of connector casing (1).
7. The rotary joint of an expansion and contraction hydraulic cylinder according to claim 1, wherein: one end of the connector shell (1) is provided with a screwing end cover (9), and fixing bolts (10) are distributed on the outer surface of the screwing end cover (9) in an annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154306.7U CN218882671U (en) | 2023-02-08 | 2023-02-08 | Rotary joint of expansion hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154306.7U CN218882671U (en) | 2023-02-08 | 2023-02-08 | Rotary joint of expansion hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218882671U true CN218882671U (en) | 2023-04-18 |
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ID=85955364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320154306.7U Active CN218882671U (en) | 2023-02-08 | 2023-02-08 | Rotary joint of expansion hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218882671U (en) |
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2023
- 2023-02-08 CN CN202320154306.7U patent/CN218882671U/en active Active
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