CN215410739U - Low-temperature refrigerant gas rotary joint - Google Patents
Low-temperature refrigerant gas rotary joint Download PDFInfo
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- CN215410739U CN215410739U CN202023104230.2U CN202023104230U CN215410739U CN 215410739 U CN215410739 U CN 215410739U CN 202023104230 U CN202023104230 U CN 202023104230U CN 215410739 U CN215410739 U CN 215410739U
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- heat preservation
- bearing
- rotary joint
- shell
- refrigerant gas
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Abstract
The utility model discloses a low-temperature refrigerant gas rotary joint which comprises a rotary joint shell, a heat preservation shell, a top cover, a central shaft, a first bearing and a second bearing, wherein the heat preservation shell is positioned inside the rotary joint shell, heat preservation cotton is filled inside the heat preservation shell, a first bearing mounting groove, a second bearing mounting groove, a gas chamber and a gas outlet hole are formed in the heat preservation shell, the first bearing and the second bearing are rotatably connected with the central shaft, the bottom of the gas chamber is uniformly provided with gas outlet holes, the bottom ends of the gas outlet holes are connected with gas guide pipes, and the upper surface and the lower surface of the top cover are respectively provided with a dynamic sealing ring capable of sealing a gap between the central shaft and the top cover; the refrigerant gas is subjected to heavy heat preservation in the conveying process through the heat preservation shell, the heat preservation cotton and the heat preservation pad; through air duct static seal, with dynamic seal circle dynamic seal in order to guarantee the leakproofness, detect the gaseous pressure variation of low temperature refrigerant through low temperature pressure sensor, prevent that refrigerant gas from taking place to leak, send alarm signal through the alarm lamp when leaking.
Description
Technical Field
The utility model relates to the technical field of rotary joints, in particular to a low-temperature refrigerant gas rotary joint.
Background
The pneumatic rotary joint is a transitional connection sealing device for inputting a gas medium from a static system to a dynamic rotary system, and is suitable for a rotary platform in the aspect of pneumatic control; when the existing gas rotary joint conveys low-temperature refrigerant gas, the conveyed gas is often subjected to temperature change due to poor heat preservation effect, or leakage occurs due to poor air tightness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the existing defects and provides a low-temperature refrigerant gas rotary joint, which carries out heavy heat preservation on the refrigerant gas conveying process through a heat preservation shell, heat preservation cotton and a heat preservation pad; through air duct static seal and derivation refrigerant gas to can guarantee through dynamic seal circle dynamic seal the center pin when rotating and the leakproofness between the top cap, detect the gaseous pressure variation of low temperature refrigerant through low temperature pressure sensor, prevent that refrigerant gas from taking place to leak, send alarm signal through the alarm lamp when refrigerant gas takes place to leak at rotary joint, can effectively solve the problem among the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a low-temperature refrigerant gas rotary joint comprises a rotary joint shell, a heat preservation shell, a top cover, a central shaft, a first bearing and a second bearing, wherein the heat preservation shell is positioned inside the rotary joint shell, the top cover is connected with the rotary joint shell through bolts, heat preservation cotton is filled inside the heat preservation shell, a first bearing mounting groove, a second bearing mounting groove, a gas chamber and a gas outlet hole are formed in the heat preservation shell, the first bearing mounting groove is fixedly provided with the first bearing, the second bearing mounting groove is fixedly provided with the second bearing, the first bearing and the second bearing are rotatably connected with the central shaft, the bottom of the gas chamber is uniformly provided with gas outlet holes penetrating through the bottom of the heat preservation shell and the bottom of the rotary joint shell, the bottom of each gas outlet hole is statically and hermetically connected with a gas guide pipe, and the upper surface and the lower surface of the top cover are respectively provided with a dynamic sealing ring capable of sealing a gap between the central shaft and the top cover; the bearing I and the bearing II are rotationally connected with the central shaft, so that the shell of the rotary joint is kept fixed when the central shaft rotates, and the function of a gas rotary joint is realized; keep warm to refrigerant gas transportation process through heat preservation shell and heat preservation cotton, sealed derivation refrigerant gas through the air duct of the static sealing connection in bottom with the venthole, all be provided with through the upper surface and the lower surface of top cap and seal the dynamic seal circle in gap between center pin and the top cap can guarantee the center pin when rotating and the leakproofness between the top cap.
Further, the inside hollow structure that is of center pin, center pin run through the top cap, and the top of center pin is provided with the intake pipe connector, evenly be provided with on the center pin with the gas outlet that the air chamber is linked together through the intake pipe connector gaseous intake pipe of connecting the refrigerant, the refrigerant gas gets into the air chamber through the gas outlet, and the rethread venthole is derived from the air duct.
Furthermore, a low-temperature pressure sensor is arranged in the air chamber, and the pressure change of the low-temperature refrigerant gas is detected through the low-temperature pressure sensor, so that the refrigerant gas is prevented from leaking.
Furthermore, the outside of rotary joint shell and top cap all is provided with the heat preservation and fills up, and the outside of rotary joint shell is provided with the alarm lamp, sends alarm signal through the alarm lamp when refrigerant gas takes place to leak at rotary joint, keeps warm once more to this device wholly through the heat preservation pad.
Compared with the prior art, the utility model has the beneficial effects that: the refrigerant gas is subjected to heavy heat preservation in the conveying process through the heat preservation shell, the heat preservation cotton and the heat preservation pad; refrigerant gas is led out through the air duct of static sealing connection to upper surface and the lower surface through the top cap all are provided with can seal the dynamic seal circle in gap between center pin and the top cap can guarantee the center pin when rotating and the leakproofness between the top cap, detect the gaseous pressure variation of low temperature refrigerant through low temperature pressure sensor, prevent that refrigerant gas from taking place to leak, send alarm signal through the alarm lamp when refrigerant gas takes place to leak at rotary joint.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the mandrel of the present invention.
In the figure: the device comprises a rotary joint shell 1, a heat preservation shell 2, a top cover 3, a central shaft 4, a bearing I5, a bearing II 6, a bearing I7, a bearing II 8, a gas chamber 9, an air inlet pipe connector 10, a gas outlet 11, a dynamic sealing ring 12, a low-temperature pressure sensor 13, a gas outlet 14, a heat preservation cushion 15, an alarm lamp 16, an air guide pipe 17 and heat preservation cotton 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-2, the present invention provides a technical solution: a low-temperature refrigerant gas rotary joint comprises a rotary joint shell 1, a heat preservation shell 2, a top cover 3, a central shaft 4, a first bearing 5 and a second bearing 6, the heat preservation shell 2 is positioned in the rotary joint shell 1, the top cover 3 is connected with the rotary joint shell 1 through bolts, heat preservation cotton 18 is filled in the heat preservation shell 2, a first bearing mounting groove 7, a second bearing mounting groove 8, an air chamber 9 and an air outlet 14 are arranged on the heat preservation shell 2, the first bearing mounting groove 7 is fixed with a first bearing 5, the second bearing mounting groove 8 is fixed with a second bearing 6, the bearing I5 and the bearing II 6 are rotationally connected with a central shaft 4, the bottom of the air chamber 9 is uniformly provided with air outlet holes 14 which penetrate through the bottom of the heat preservation shell 2 and the bottom of the rotary joint shell 1, the bottom end of the air outlet hole 14 is statically and hermetically connected with an air duct 17, and the upper surface and the lower surface of the top cover 3 are both provided with dynamic sealing rings 12 capable of sealing a gap between the central shaft 4 and the top cover 3; the rotary joint shell 1 is fixedly kept when the central shaft 4 rotates through the rotary connection between the bearing I5 and the bearing II 6 and the central shaft 4, so that the function of a gas rotary joint is realized; keep warm through heat preservation shell 2 and heat preservation cotton 18 to refrigerant gas transportation process, derive refrigerant gas through the air duct 17 with the static sealing connection in bottom of venthole 14 sealed, all be provided with through the upper surface and the lower surface of top cap 3 and seal the dynamic seal 12 in gap between center pin 4 and the top cap 3 can guarantee the leakproofness between center pin 4 when rotating and top cap 3.
Further, the inside hollow structure that is of center pin 4, center pin 4 run through top cap 3, and the top of center pin 4 is provided with intake pipe connector 10, evenly be provided with on center pin 4 with the gas outlet 11 that air chamber 9 is linked together, connect the gaseous intake pipe of refrigerant through intake pipe connector 10, refrigerant gas gets into air chamber 9 through gas outlet 11, and rethread venthole 14 is derived from air duct 17.
Further, a low-temperature pressure sensor 13 is disposed inside the gas chamber 9, and the low-temperature pressure sensor 13 detects a pressure change of the low-temperature refrigerant gas to prevent the refrigerant gas from leaking.
Further, the outside of rotary joint shell 1 and top cap 3 all is provided with heat preservation pad 15, and the outside of rotary joint shell 1 is provided with alarm lamp 16, sends alarm signal through alarm lamp 16 when refrigerant gas takes place to leak at rotary joint, keeps warm once more to this device wholly through heat preservation pad 15.
When in use: the low-temperature pressure sensor 13 and the alarm lamp 16 are electrically connected with a controller, the central shaft 4 is connected with an external rotating part and is rotationally connected with the central shaft 4 through a bearing I5 and a bearing II 6, so that the rotary joint shell 1 is kept fixed when the central shaft 4 rotates, the function of a gas rotary joint is realized, the central shaft is connected with a gas inlet pipe of refrigerant gas through a gas inlet pipe connector 10, the refrigerant gas enters a gas chamber 9 through a gas outlet 11 and is led out from a gas guide pipe 17 through a gas outlet hole 14, the refrigerant gas is subjected to heavy heat preservation in the conveying process through a heat preservation shell 2, heat preservation cotton 18 and a heat preservation cushion 15, the refrigerant gas is hermetically led out through the gas guide pipe 17 which is in static sealing connection with the bottom end of the gas outlet hole 14, and the sealing performance between the central shaft 4 and the top cover 3 can be ensured through dynamic sealing rings 12 which are respectively arranged on the upper surface and the lower surface of the top cover 3 and are provided with gaps between the central shaft 4 and the top cover 3 in a sealing manner, detect the gaseous pressure variation of low temperature refrigerant through low temperature pressure sensor 13, prevent that refrigerant gas from taking place to leak, give control transmission signal through low temperature pressure sensor 13 when refrigerant gas takes place to leak at rotary joint to send alarm signal by controller drive alarm lamp 16, this device reasonable in design has guaranteed refrigerant gas transport's airtight and security, facilitates the use.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a gaseous rotary joint of low temperature refrigerant, includes rotary joint shell, heat preservation shell, top cap, center pin, bearing one and bearing two, its characterized in that: the heat preservation shell is located inside the rotary joint shell, the top cap passes through bolted connection with the rotary joint shell, and the inside packing of heat preservation shell has the heat preservation cotton, is provided with bearing one mounting groove, two mounting grooves of bearing, air chamber and venthole on the heat preservation shell, bearing one mounting groove is fixed with bearing one, two mounting grooves of bearing are fixed with bearing two, bearing one and bearing two rotate and are connected with the center pin, the bottom of air chamber evenly is provided with the venthole that runs through heat preservation shell bottom and rotary joint shell bottom, the static sealing connection in bottom of venthole has the air duct, and the upper surface and the lower surface of top cap all are provided with and seal the dynamic seal circle in gap between center pin and the top cap.
2. The rotary joint for low-temperature refrigerant gas as claimed in claim 1, wherein: the center pin is internally of a hollow structure, the center pin penetrates through the top cover, an air inlet pipe connecting port is formed in the top end of the center pin, and an air outlet communicated with the air chamber is uniformly formed in the center pin.
3. The rotary joint for low-temperature refrigerant gas as claimed in claim 1, wherein: and a low-temperature pressure sensor is arranged in the air chamber.
4. The rotary joint for low-temperature refrigerant gas as claimed in claim 1, wherein: the outside of rotary joint shell and top cap all is provided with the heat preservation pad, and the outside of rotary joint shell is provided with the alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023104230.2U CN215410739U (en) | 2020-12-22 | 2020-12-22 | Low-temperature refrigerant gas rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023104230.2U CN215410739U (en) | 2020-12-22 | 2020-12-22 | Low-temperature refrigerant gas rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215410739U true CN215410739U (en) | 2022-01-04 |
Family
ID=79637469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023104230.2U Active CN215410739U (en) | 2020-12-22 | 2020-12-22 | Low-temperature refrigerant gas rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215410739U (en) |
-
2020
- 2020-12-22 CN CN202023104230.2U patent/CN215410739U/en active Active
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