CN116252157A - Multi-path rotary joint and vertical turntable - Google Patents
Multi-path rotary joint and vertical turntable Download PDFInfo
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- CN116252157A CN116252157A CN202310235481.3A CN202310235481A CN116252157A CN 116252157 A CN116252157 A CN 116252157A CN 202310235481 A CN202310235481 A CN 202310235481A CN 116252157 A CN116252157 A CN 116252157A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application relates to a multichannel rotary joint and a vertical turntable, comprising a fixed shaft, wherein the fixed shaft is arranged at the center of the turntable; the fixed shaft is provided with a first air inlet hole and a first air outlet hole, and the first air inlet hole is communicated with the first air outlet hole; the rotating module is arranged on the table top of the turntable; the rotary module is provided with an accommodating cavity, the rotary module is arranged on a first shaft section at the top of the fixed shaft through the accommodating cavity, and the rotary module can perform rotary motion along the fixed shaft; the rotary module is provided with a first air passage, and a cavity is formed between the accommodating cavity and the top end of the first shaft section; the cavity is used for enabling the first air outlet hole and the first air passage to be in a communicated state at any rotation angle of the rotary module; wherein, first air route sets up the top of holding cavity. This application has the effect of solving this problem of current revolving stage dismantlement and longer with the time of assembly.
Description
Technical Field
The application relates to the technical field of direct-drive turntable equipment, in particular to a multi-channel rotary joint and a vertical turntable.
Background
The direct-drive turntable mainly comprises a rotary table top and a motor for driving the rotary table top to rotate, wherein an air passage is arranged on the rotary table top, and pneumatic equipment, such as a pneumatic clamp or a vacuum chuck, and the like, arranged on the rotary table top is controlled by the air passage, so that the automatic clamping function is realized.
However, the existing direct-drive turntable has the problem of inconvenient installation in use, and after the sealing element of the rotary table top reaches the service life, the sealing element can be replaced only after the rotary table top is detached as a whole. The process of routine maintenance or replacement of the sealing element is inconvenient and requires a long disassembly and assembly time.
Disclosure of Invention
In order to solve the problems of the prior art that the turntable is inconvenient to maintain or replace a sealing element and the required disassembly and assembly time is long, the application provides a multi-path rotary joint and a vertical turntable.
On the one hand, the multichannel rotary joint provided by the application adopts the following technical scheme:
the multi-channel rotary joint and the vertical turntable comprise a fixed shaft and are arranged at the center of the turntable;
the fixed shaft is provided with a first air inlet hole and a first air outlet hole, and the first air inlet hole is communicated with the first air outlet hole; the rotating module is arranged on the table top of the turntable;
The rotary module is provided with an accommodating cavity, the rotary module is arranged on a first shaft section at the top of the fixed shaft through the accommodating cavity, and the rotary module can perform rotary motion along the fixed shaft;
the rotary module is provided with a first air passage, and a cavity is formed between the accommodating cavity and the top end of the first shaft section;
the cavity is used for enabling the first air outlet hole and the first air passage to be in a communicated state at any rotation angle of the rotary module;
wherein, first air route sets up the top of holding cavity.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the rotating module 2 is further provided with a second air path; the second air channel is provided with a second air channel air inlet and a second air channel air outlet;
the fixed shaft is also provided with a second air inlet hole and a second air outlet hole, and the second air inlet hole is communicated with the second air outlet hole; a first annular airflow channel is arranged between the second air outlet hole and the second air passage air inlet, and the first annular airflow channel is used for enabling the second air outlet hole and the second air passage air inlet to be communicated at any rotation angle of the rotary module.
By adopting the technical proposal, the utility model has the advantages that,
Optionally, 3 the outer wall surface of the first shaft section of the fixed shaft is provided with a first annular groove, and the first annular groove is arranged around the first shaft section; the second air outlet hole is arranged in the first annular groove; the first annular groove is used for forming the first annular airflow channel.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the rotating module 4 is further provided with a third air path; the third air channel is provided with a third air channel air inlet and a third air channel air outlet; the fixed shaft is also provided with a third air inlet hole and a third air outlet hole, and the third air inlet hole is communicated with the third air outlet hole; a second annular airflow channel is arranged between the third air outlet and the third air channel air inlet, and the second annular airflow channel is used for enabling the third air outlet and the third air channel air inlet to be communicated at any rotation angle of the rotary module.
By adopting the technical proposal, the utility model has the advantages that,
optionally, 5 the outer wall surface of the first shaft section of the fixed shaft is provided with a second annular groove, the second annular groove is arranged around the first shaft section, and the second annular groove and the first annular groove are mutually spaced in the axial direction; the third air outlet hole is arranged in the second annular groove; the second annular groove is used for forming the second annular airflow channel.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the bottom of the fixed shaft is provided with a mounting seat for mounting and fixing the fixed shaft on a machine tool; the first air inlet hole is formed in the upper surface of the mounting seat, and the first air outlet hole is formed in the top surface of the first shaft section; the first air inlet hole is communicated with the first air outlet hole through a first air flow channel; the first airflow passage comprises a first airflow passage horizontal part and a first airflow passage vertical part which are communicated; the first airflow channel horizontal part is communicated with the first air inlet hole; the first airflow channel vertical part is communicated with the first air outlet hole;
and/or the second air inlet hole is arranged on the upper surface of the mounting seat, and the second air outlet hole is arranged on the side wall surface of the first shaft section; the second air inlet hole is communicated with the second air outlet hole through a second air flow channel; the second air flow channel comprises a second air flow channel horizontal part and a second air flow channel vertical part which are communicated; the second air flow passage horizontal part is communicated with a second air inlet hole; the second air flow passage vertical part is communicated with a second air outlet hole;
and/or a third air inlet hole is formed in the upper surface of the mounting seat, and the third air outlet hole is formed in the side wall surface of the first shaft section; the third air inlet hole is communicated with the third air outlet hole through a third air flow channel; the third air flow passage comprises a third air flow passage horizontal part and a third air flow passage vertical part which are communicated; the third air flow passage horizontal part is communicated with a third air inlet hole; the third air flow passage vertical part is communicated with the third air outlet hole.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the first air flow channel horizontal portion, the second air flow channel first horizontal portion and the third air flow channel first horizontal portion are disposed at the same axial position in the mounting seat;
and/or the first airflow channel vertical part, the second airflow channel vertical part and the third airflow channel vertical part are radially arranged at intervals in the fixed shaft.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the rotating module of 8 includes a rotating panel, a first ring block, a second ring block and a third ring block; the third ring block is provided with screws which sequentially penetrate through the second ring block and the first ring block and are fixedly connected with the rotating panel; the circular holes on the inner sides of the first ring block, the second ring block and the third ring block and the containing circular holes below the rotating panel form a containing cavity; the depth of the accommodating cavity is larger than the length of the first shaft section;
and/or the fixed shaft is provided with a second shaft section, the second shaft section is provided with a bearing, and the inner ring of the bearing is tightly fixed with the outer wall surface of the second shaft section; the bearing is positioned below the rotating module, and an outer ring of the bearing rotates synchronously with the rotating module.
By adopting the technical proposal, the utility model has the advantages that,
optionally, a first annular gap is formed on the side wall of the accommodating round hole of the rotating panel 9, and the first annular gap is located on the contact surface of the rotating panel and the first ring block; a first dynamic sealing piece is arranged between the inside of the first annular gap and the first shaft section and is used for preventing gas in the cavity from leaking from the intersection of the rotating panel and the first shaft section;
and/or a second annular gap is arranged on the inner side wall of the first annular block, and the second annular gap is positioned on the contact surface of the first annular block and the second annular block; a second dynamic sealing piece is arranged between the inside of the second annular gap and the first shaft section and is used for preventing gas in the first annular gas flow channel from leaking;
and/or a third annular gap is arranged on the inner side wall of the second annular block, and the third annular gap is positioned on the contact surface of the second annular block and the third annular block; a third dynamic seal is disposed between the first shaft section and the interior of the third annular gap for preventing gas leakage in the second annular gas flow passage.
By adopting the technical proposal, the utility model has the advantages that,
optionally, a first air channel in the vertical direction is arranged at the center of the rotating panel 0;
And/or, the second air channel in the rotary module comprises a second air channel horizontal part and a second air channel vertical part which are mutually communicated; the second air channel horizontal part is communicated with a second air channel air inlet; the vertical part of the second air channel is communicated with the air outlet of the second air channel;
and/or the third air passage in the rotating module comprises a third air passage horizontal part and a third air passage vertical part which are communicated with each other; the third air channel horizontal part is communicated with a third air channel air inlet; and the vertical part of the third air passage is communicated with the air outlet of the third air passage.
By adopting the technical proposal, the utility model has the advantages that,
on the other hand, the vertical turntable provided by the application adopts the following technical scheme:
the vertical revolving stage sets up on the lathe, vertical revolving stage includes:
a stator assembly;
a rotor assembly rotatably disposed on the stator assembly; the rotor assembly having a rotating table top that is rotationally movable relative to the stator assembly; and a multi-path swivel joint detachably provided on the swivel table top, the multi-path swivel joint being as claimed in any one of claims 1 to 10.
By adopting the technical proposal, the utility model has the advantages that,
Optionally, the rotary table top 2 is provided with a bearing surface and a mounting surface; a step accommodating channel is arranged in the center of the bearing surface and used for fixing a rotating module of the multi-channel rotating joint; the mounting surface is provided with a plurality of annular accommodating grooves which are coaxially arranged;
and/or the stator assembly comprises a shell, and a plurality of annular convex blocks corresponding to the plurality of annular accommodating grooves are arranged at the top of the stator assembly;
and/or, when the rotary table top is mounted on the shell in a limiting way, fit gaps are formed between the plurality of annular accommodating grooves and the plurality of annular protruding blocks.
By adopting the technical proposal, the utility model has the advantages that,
optionally, 3 the rotor assembly includes a rotating main shaft and a plurality of permanent magnet units disposed on an outer wall surface of the rotating main shaft; the rotary main shaft is arranged around a fixed shaft in the multi-path rotary joint; the plurality of permanent magnet units are arranged around the rotating main shaft;
and/or the stator assembly comprises a shell and a plurality of stator coils arranged on the inner wall surface of the shell; the plurality of stator coils are arranged around the plurality of permanent magnet units; when the plurality of stator coils are energized, a torque is generated between the plurality of stator coils and the plurality of permanent magnet units to cause the rotor assembly to rotate relative to the stator assembly.
By adopting the technical proposal, the utility model has the advantages that,
optionally, the method further comprises:
the base is fixedly connected with the shell; the bottom center of the base is provided with a concave part, the concave part is used for accommodating a mounting seat of the fixed shaft, and the base is fixed with the fixed shaft;
the positioning ring block is fixedly arranged on the shell.
By adopting the technical proposal, the utility model has the advantages that,
optionally, an air supply hole is formed in the outer side of the shell, and the air supply hole is singly and correspondingly communicated with an air supply channel; the air supply channel comprises a first channel arranged on the shell, a second channel arranged in the positioning ring block and a third channel arranged on the base; and the air outlet end of the third channel is communicated with the air inlet hole on the mounting seat.
By adopting the technical proposal, the utility model has the advantages that,
in summary, the present application includes at least one of the following beneficial technical effects:
the fixed shaft is fixedly arranged, the rotary module synchronously rotates along with the table top of the turntable, air flow can flow into the rotary module without barriers after flowing upwards along the fixed shaft from the bottom, and then flows out of the air channels of the rotary module, and pneumatic equipment arranged on the table top of the turntable is controlled by controlling the flow of different air channels; and after the sealing element of the rotary module reaches the service life or the rotary module is worn, the rotary module can be independently disassembled under the condition that other part structures are not required to be disassembled by unscrewing the screw for fixing the rotary module, so that the sealing element is convenient to maintain or replace, the required disassembly and assembly time is shorter, and the debugging precision is not required to be re-debugged after the disassembly.
Drawings
FIG. 1 is a schematic view showing the overall structure of a multi-path rotary joint according to the present invention;
FIG. 2 shows a schematic top view of a multi-way swivel of the present invention;
FIG. 3 is a schematic view showing the cross-sectional structure of the AA in FIG. 2;
fig. 4 is an enlarged schematic view of the M portion of fig. 3;
FIG. 5 shows a schematic elevational view of the multi-way swivel of the present invention;
FIG. 6 is a schematic view showing a sectional structure in the BB direction in FIG. 5;
FIG. 7 is a schematic view showing a sectional structure in the direction CC in FIG. 5;
FIG. 8 is a schematic view showing the structure of a fixed shaft in the present invention;
FIG. 9 is a schematic cross-sectional view of the DD in FIG. 8;
FIG. 10 shows a schematic front view of a rotary module of the present invention;
FIG. 11 shows a schematic cross-sectional view of the EE of FIG. 10;
FIG. 12 shows an exploded view of the rotary module of the present invention;
FIG. 13 is a schematic diagram showing an isometric view of a turntable according to the present invention;
FIG. 14 is a schematic top view of the turntable of the present invention;
fig. 15 shows a schematic cross-sectional structure of the FF direction in fig. 14;
fig. 16 is a schematic view showing a sectional structure in the GG direction in fig. 14;
FIG. 17 is a schematic view of the structure of the bearing surface of the rotary table of the present invention;
fig. 18 is a schematic view showing the structure of the mounting surface of the rotary table top of the present invention.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-12.
The embodiment of the application discloses a kind of device. . . . . .
Referring to FIG. 1, a multi-path rotary joint includes
Referring to fig. 1-12, one embodiment of the present invention provides a multi-path swivel joint for a turntable, comprising: a fixed shaft 100 disposed at the center of the turntable; the fixed shaft 100 is provided with a first air inlet hole 131 and a first air outlet hole 132, and the first air inlet hole 131 is communicated with the first air outlet hole 132; a rotation module 200 disposed on a table surface of the turntable; the rotary module 200 has a receiving cavity 210, the rotary module 200 is disposed on the first shaft section 110 on the top of the fixed shaft 100 through the receiving cavity 210, and the rotary module 200 can perform a rotary motion along the fixed shaft 100; the rotary module 200 has a first air passage 220, and a cavity is formed between the accommodating cavity 210 and the top end of the first shaft section 110; the cavity is used for enabling the first air outlet hole 132 and the first air passage 220 to be in a communicated state at any rotation angle of the rotary module 200; wherein, the first air passage 220 is disposed at the top of the accommodating cavity 210.
In this embodiment, the fixed shaft 100 is fixedly arranged, the rotary module 200 performs synchronous rotary motion along with the table top of the turntable, and after the air flow flows upwards along the fixed shaft 100 from the bottom, the air flow flows into the rotary module 200 without obstruction and then flows out of the air channels of the rotary module 200, and the pneumatic equipment mounted on the table top of the turntable is controlled by controlling the flow of different air channels; after the sealing member of the rotary module 200 reaches the service life or the rotary module 200 is worn out, the rotary module 200 can be separately disassembled without removing other parts structures by unscrewing the screw for fixing the rotary module 200, thereby facilitating maintenance or replacement of the sealing member.
By arranging the first air inlet hole 131 and the first air outlet hole 132 on the fixed shaft 100, a first air flow channel 130 is formed between the first air inlet hole 131 and the first air outlet hole 132 which are communicated, so that air flows upwards through the air flow channel along the axial direction of the fixed shaft 100 from the bottom of the fixed shaft 100 and flows out from the first air outlet hole 132 at the top of the fixed shaft 100; in addition, a cavity is formed between the accommodating cavity 210 and the top of the first shaft section 110 of the fixed shaft 100, so that the air flow flowing out from the first air outlet 132 at the top of the fixed shaft 100 enters the cavity first and then flows out from the first air channel 220 communicated with the outside at the top of the cavity; the cavity can make the air flow flowing out of the first air outlet hole 132 on the fixed shaft 100 flow out to the outside through the first air passage 220 under the condition of any rotation angle of the rotary module 200 relative to the fixed shaft 100, so that the stability of the air transmission of the first air passage 220 is ensured.
In one embodiment, the rotary module 200 is further provided with a second air path 230; the second air path 230 has a second air path air inlet 231 and a second air path air outlet 232; the fixed shaft 100 is also provided with a second air inlet hole 141 and a second air outlet hole 142, and the second air inlet hole 141 is communicated with the second air outlet hole 142; a first annular airflow channel 111 is disposed between the second air outlet hole 142 and the second air inlet 231, and the first annular airflow channel 111 is used for keeping the second air outlet hole 142 and the second air inlet 231 in communication at any rotation angle of the rotary module 200.
In the present embodiment, a second air flow channel 140 is formed between the second air inlet hole 141 and the second air outlet hole 142, and the second air flow channel 140 is used for enabling air flow to flow upwards from the bottom of the fixed shaft 100, along the fixed shaft 100, to the second air outlet hole 142 on the first shaft section 110 and outwards; the air flow flowing out from the second air outlet hole 142 can flow into the second air channel air inlet 231 and then flow out from the second air channel air outlet 232 under the condition of any rotation angle of the rotary module 200 relative to the fixed shaft 100 through the first annular air flow channel 111, so that the stability of the air transmission of the second air channel 230 is ensured.
In one embodiment, the outer wall surface of the first shaft section 110 of the stationary shaft 100 is provided with a first annular groove 112, the first annular groove 112 being provided around the first shaft section 110; the second air outlet hole 142 is disposed inside the first annular groove 112; the first annular groove 112 is used to constitute the first annular air flow passage 111.
In the present embodiment, regardless of whether the rotation module 200 rotates to any angle with respect to the fixed shaft 100; the second air outlet hole 142, the first annular groove 112 and the second air inlet 231 are all on the same axial plane; the air flow flowing out of the second air outlet hole 142 enters the first annular groove 112, flows along the outer wall surface of the first shaft section 110, flows into the second air channel 230 from the second air channel air inlet 231, and finally flows out from the second air channel air outlet 232; under the rotation angle of the rotary joint, the stability of the gas transmission of the second gas path 230 can be ensured.
In one embodiment, the rotary module 200 is further provided with a third air path 240; the third air channel 240 has a third air channel air inlet 241 and a third air channel air outlet 242; the fixed shaft 100 is also provided with a third air inlet hole 151 and a third air outlet hole 152, and the third air inlet hole 151 is communicated with the third air outlet hole 152; a second annular airflow channel 113 is disposed between the third air outlet 152 and the third air inlet 241, and the second annular airflow channel 113 is used for keeping the third air outlet 152 and the third air inlet 241 in communication at any rotation angle of the rotary module 200.
In the present embodiment, a third air flow channel 150 is formed between the third air inlet hole 151 and the third air outlet hole 152; the third airflow channel 150 is used for enabling airflow to flow from the bottom of the fixed shaft 100, along the fixed shaft 100, to the third air outlet 152 on the first shaft section 110 and outwards; the air flow flowing out from the third air outlet hole 152 passes through the second annular air flow channel 113, and can flow into the third air channel air inlet 241 and then flow out from the third air channel air outlet 242 under the condition that the rotary module 200 rotates at any angle relative to the fixed shaft 100, so that the stability of the air transmission of the third air channel 240 is ensured.
In one embodiment, the outer wall surface of the first shaft section 110 of the fixed shaft 100 is provided with a second annular groove 114, the second annular groove 114 is provided around the first shaft section 110, and the second annular groove 114 and the first annular groove 112 are axially spaced from each other; the third air outlet hole 152 is disposed inside the second annular groove 114; the second annular groove 114 is for constituting the second annular air flow passage 113.
In the present embodiment, regardless of whether the rotation module 200 rotates to any angle with respect to the fixed shaft 100; the third air outlet 152, the second annular groove 114 and the third air inlet 241 are all on the same axial plane. The air flow flowing out of the third air outlet hole 152 enters the second annular groove 114 and flows along the outer wall surface of the first shaft section 110; then flows into the third air channel 240 from the third air channel air inlet 241 and finally flows out from the third air channel air outlet 242; the third air channel 240 can ensure the stability of air transportation under any rotation angle of the rotary joint.
In one embodiment, the bottom of the fixed shaft 100 is provided with a mounting seat 160 for mounting and fixing the fixed shaft 100 on a machine tool; the first air inlet hole 131 is arranged on the upper surface of the mounting seat 160, and the first air outlet hole 132 is arranged on the top surface of the first shaft section 110; the first air inlet hole 131 is communicated with the first air outlet hole 132 through the first air flow channel 130; the first airflow passage 130 includes a first airflow passage horizontal portion 133 and a first airflow passage vertical portion 134 that communicate; the first airflow passage horizontal portion 133 communicates with the first air intake hole 131; the first air flow passage vertical portion 134 communicates with the first air outlet hole 132;
and/or, the second air inlet hole 141 is arranged on the upper surface of the mounting seat 160, and the second air outlet hole 142 is arranged on the side wall surface of the first shaft section 110; the second air inlet hole 141 and the second air outlet hole 142 are communicated through the second air flow channel 140; the second flow channel 140 includes a second flow channel horizontal portion 143, a second flow channel vertical portion 144 in communication; the second air flow path horizontal portion 143 communicates with the second air intake hole 141; the second flow channel vertical section 144 communicates with the second air outlet aperture 142;
And/or, the third air inlet hole 151 is disposed on the upper surface of the mounting seat 160, and the third air outlet hole 152 is disposed on the side wall surface of the first shaft section 110; the third air inlet hole 151 and the third air outlet hole 152 are communicated through the third air flow channel 150; the third flow channel 150 includes a third flow channel horizontal portion 153, a third flow channel vertical portion 154 in communication; the third flow channel horizontal portion 153 communicates with the third air intake hole 151; the third flow path vertical section 154 communicates with the third outlet aperture 152.
In this embodiment, the fixing shaft 100 is fixed at the hollow portion of the center of the turntable by the mounting base 160, and the stability of the rotation module 200 during rotation is further improved by the fixing shaft 100, so that radial runout of the rotation module 200 is reduced. And, the first gas flow channel 130 is used for conveying gas from the mounting base 160 upwards along the fixed shaft 100 to the first gas outlet hole 132 on the top surface of the first shaft section 110; specifically, the gas entering the second vertical portion 144 of the gas flow channel is delivered to the second gas outlet hole 142 on the side wall surface of the first shaft section 110, enters the first annular gas flow channel 111, and is delivered to the second gas channel 230, as shown in fig. 6; the gas entering the third flow path vertical section 154 is delivered to the third gas outlet hole 152 of the side wall surface of the first shaft section 110, enters the second annular gas flow channel 113, and is delivered to the third gas path 240 as shown in fig. 7.
Referring to fig. 9, in one embodiment, the first airflow channel horizontal portion 133, the second airflow channel horizontal portion 143, and the third airflow channel horizontal portion 153 are disposed at the same axial position within the mounting block 160. The manufacturing of the fixing shaft 100 is facilitated, and the processing of the first air flow channel horizontal portion 133, the second air flow channel horizontal portion 143 and the third air flow channel horizontal portion 153 can be completed by only determining the axial position of the mounting seat 160 in the manufacturing process and then rotating the mounting seat 160 to a proper angle for hole rotation. Meanwhile, the first, second and third flow path horizontal portions 133, 143 and 153 are on the same axial plane, which facilitates communication with an external air supply source. Further, the first, second and third vertical portions 134, 144 and 154 are radially spaced within the stationary shaft 100 to prevent air flow between the different air flow passages from intersecting, affecting control of the pneumatic device.
Referring to fig. 10-12, in one embodiment, the rotation module 200 includes a rotation panel 250, a first ring block 260, a second ring block 270, and a third ring block 280; the third ring block 280 is provided with screws which sequentially penetrate through the second ring block 270 and the first ring block 260 to be fixedly connected with the rotating panel 250; the circular holes on the inner sides of the first ring block 260, the second ring block 270 and the third ring block 280 and the containing circular holes below the rotating panel 250 form a containing cavity 210; the depth of the receiving cavity 210 is greater than the length of the first shaft section 110; the fixed shaft 100 is provided with a second shaft section 120, a bearing 121 is arranged on the second shaft section 120, and an inner ring of the bearing 121 is tightly fixed with the outer wall surface of the second shaft section 120; the bearing 121 is positioned below the rotary module 200, and an outer ring of the bearing 121 rotates in synchronization with the rotary module 200.
In this embodiment, the third ring block 280 sequentially penetrates the second ring block 270 and the first ring block 260 to be fixedly connected with the rotating panel 250 by providing at least two screws; rotating panel 250, first ring block 260, second ring block 270, and third ring block 280 are made to constitute rotating module 200; the circular holes inside the first ring block 260, the second ring block 270 and the third ring block 280 and the containing circular hole below the rotating panel 250 form a containing cavity 210, and the containing cavity 210 is used for enabling the rotating module 200 to be sleeved on the first shaft section 110 of the fixed shaft 100 when the rotating module 200 is installed; when the rotating panel 250, the first ring block 260 and the second ring block 270 are installed, firstly, limiting is carried out through cylindrical pins, specifically, the cylindrical pins sequentially penetrate through the second ring block 270 and the first ring block 260, finally, the cylindrical pins enter the rotating panel 250 to realize the pre-positioning before installation, a plurality of ring blocks and the rotating panel 250 are fixed together through screws on the third ring block 280, and meanwhile, the cylindrical pins are fixed in the rotating module 200 through the third ring block 280.
And, at the interface of the rotating panel 250 and the first ring block 260, the interface of the first ring block 260 and the second ring block 270, the interface of the second ring block 270 and the third ring block 280 are provided with annular sealing grooves, and O-shaped sealing rings are arranged in the sealing grooves to prevent gas leakage from the connecting surface; since the rotation module 200 rotates along the fixed shaft 100, radial runout is easily generated during the rotation of the rotation module 200. By providing the bearing 121 on the second shaft section 120 of the stationary shaft 100, the bearing 121 comprises an outer ring, an inner ring and balls arranged between the outer ring and the inner ring. The inner ring and the outer ring are rotatable relative to each other. The inner ring is tightly attached to the outer wall surface of the second shaft section 120, meanwhile, a bearing 121 is positioned below the rotary module 200, and the bearing 121 and the rotary module are both arranged on a rotary table top of the rotary table; the outer ring of the bearing 121 rotates in synchronization with the rotation module 200; specifically, during the installation and use of the rotary module 200, the inner ring is kept stationary, and the outer ring performs synchronous rotary motion along with the rotary module 200, so that the relative radial runout of the dynamic seal element and the shaft in the rotary joint can be reduced, and the service life of the dynamic seal element can be prolonged.
In one embodiment, a first annular gap 251 is disposed on a side wall of the accommodating circular hole of the rotating panel 250, and the first annular gap 251 is located on a contact surface between the rotating panel 250 and the first annular block 260; a first dynamic seal 252 is disposed between the interior of the first annular gap 251 and the first shaft section 110 for preventing leakage of gas within the cavity from the intersection of the rotating panel 250 and the first shaft section 110;
and/or, a second annular notch 261 is arranged on the inner side wall of the first annular block 260, and the second annular notch 261 is positioned on the contact surface of the first annular block 260 and the second annular block 270; a second dynamic seal 262 is disposed between the interior of the second annular gap 261 and the first shaft segment 110 for preventing gas leakage within the first annular gas flow passage 111;
and/or, a third annular gap 271 is arranged on the inner side wall of the second annular block 270, and the third annular gap 271 is positioned on the contact surface of the second annular block 270 and the third annular block 280; a third dynamic seal 272 is provided between the interior of the third annular gap 271 and the first shaft section 110 for preventing gas leakage in the second annular gas flow channel 113.
In this embodiment, the first dynamic seal 252, the second dynamic seal 262 and the third dynamic seal 272 are all gray rings, which are formed by combining a rubber O-ring and a polytetrafluoroethylene ring, and generate a high initial contact stress on the sealing surface according to the deformation of the gray rings, so as to prevent the leakage of gas in the absence of pressure. During operation, the pressure gas presses the square sealing ring to the maximum extent through the elastic deformation of the O-shaped sealing ring, so that the square sealing ring is closely attached to the sealing surface to generate higher additional contact stress which is increased along with the pressure increase of the pressure gas, and the additional contact stress and the initial contact stress together prevent the leakage of the pressure gas.
Specifically, the first dynamic seal 252 is disposed in the first annular gap 251, and during the rotation of the rotary module 200, the first dynamic seal 252 contacts the first shaft segment 110, so as to prevent gas leakage from the intersection between the rotary panel 250 and the first shaft segment 110, and ensure the gas flow in the cavity. The second dynamic seal 262 is disposed in the second annular gap 261, and seals the first annular gas flow channel 111 by the first dynamic seal 252 and the second dynamic seal 262, preventing gas from leaking into the cavity or the second annular gas flow channel 113. The third dynamic seal 272 is disposed in the third annular gap 271, and seals the second annular gas flow channel 113 by the second seal 262 and the third seal 272, preventing gas from leaking outside the first annular gas flow channel 111 or the rotary module 200.
In combination with the bearing 121 disposed on the second shaft section 120 in the above embodiment, the relative radial runout of the first dynamic seal 252, the second dynamic seal 262 and the third dynamic seal 272 and the fixed shaft 100 in the rotary module 200 can be reduced, and the service lives of the first dynamic seal 252, the second dynamic seal 262 and the third dynamic seal 272 can be prolonged.
In one embodiment, the rotating panel 250 has a vertically oriented first air path 220 at the center; the second air path 230 in the rotary module 200 includes a second air path horizontal portion and a second air path vertical portion which are communicated with each other; the second air path horizontal portion communicates with the second air path air inlet 231; the second air path vertical portion communicates with the second air path air outlet 232;
And/or, the third air path 240 in the rotary module 200 includes a third air path horizontal portion and a third air path vertical portion that are communicated with each other; the third gas path horizontal part is communicated with a third gas path gas inlet 241; the third air path vertical portion communicates with the third air path air outlet 242.
In this embodiment, the second air path 230 includes a second air path horizontal portion and a second air path vertical portion that are communicated with each other; the second air path horizontal part is arranged inside the first annular block 260, and the second air path vertical part comprises a channel arranged on the rotary panel 250 and a channel arranged on the first annular block 260 and penetrating to the second air path horizontal part; a sealing ring is arranged between the channels forming the vertical part of the second air channel and used for separating different air flows.
Further, the third air channel 240 includes a third air channel horizontal portion and a third air channel vertical portion that are mutually communicated; the third air path horizontal portion is provided inside the second ring block 270, and the third air path vertical portion includes a passage provided on the rotating panel 250, a passage provided on the first ring block 260, and a passage provided on the second ring block 270 penetrating to the third air path horizontal portion. A sealing ring is arranged between channels forming the vertical part of the third air passage and used for separating different air flows.
Referring to fig. 13-18, in the embodiment of the present disclosure, the vertical turntable further includes a vertical turntable disposed on the machine tool, the vertical turntable includes: a stator assembly 300; a rotor assembly 400 rotatably disposed on the stator assembly 300; the rotor assembly 400 has a rotating table 410, the rotating table 410 being rotationally movable relative to the stator assembly 300; and a multi-path rotary joint detachably provided on the rotary table 410, the multi-path rotary joint being any of the above embodiments.
In this embodiment, the rotary module 200 of the multi-way rotary joint is partially mounted on the rotary table 410, and the multiple air flows inside the rotary module 200 are separated by the gurley ring and the annular seal ring. When the glai ring serving as the dynamic sealing element reaches the service life, the rotary module 200 can be independently disassembled without dismantling other part structures, so that the dynamic sealing element is convenient to maintain or replace.
Referring to fig. 17 and 18, in one embodiment, a rotary table 410 has a carrying surface 411 and a mounting surface 412; a step accommodating channel 413 is arranged at the center of the bearing surface 411, and the step accommodating channel 413 is used for fixing the rotary module 200 of the multi-channel rotary joint; the mounting surface 412 has a plurality of coaxially disposed annular receiving grooves 414; the stator assembly 300 includes a housing 310, and the top of the stator assembly 300 has a plurality of annular protrusions corresponding to the plurality of annular receiving slots 414; when the rotary table top 410 is mounted on the shell 310 in a limiting manner, a fit clearance is formed between the plurality of annular accommodating grooves 414 and the plurality of annular convex blocks, a fixed joint is arranged on the outer side wall of the shell 310, an inner wire sleeve is mounted in the fixed joint and made of nitrile rubber, when the rotary table is powered on and used, an outer plug or a wiring terminal can be inserted into the fixed joint, and the inner wire sleeve has good waterproof performance, so that the situation of electric leakage or short circuit caused by water inflow is reduced, and the safety during use is improved.
In this embodiment, the rotary module 200 is disposed in the stepped accommodating channel 413, and when the glain ring as the dynamic sealing element reaches the service life, the rotary module 200 can be detached alone without dismantling other parts, so as to facilitate maintenance or replacement of the dynamic sealing element.
The fit gaps formed between the plurality of annular receiving grooves 414 and the plurality of annular protrusions are filled with a liquid medium, and the rotating table 410 is adsorbed on the stator assembly 300 by the surface tension of the liquid medium, so that the distance between the rotating table 410 and the stator assembly 300 is kept unchanged when the rotating table rotates with the rotor assembly 400.
Referring to fig. 16, in one embodiment, a rotor assembly 400 includes a rotating main shaft 420 and a plurality of permanent magnet units 421 disposed on an outer wall surface of the rotating main shaft 420; the rotary main shaft 420 is disposed around the fixed shaft 100 in the multi-path rotary joint; a plurality of permanent magnet units 421 are disposed around the rotating main shaft 420;
and/or, the stator assembly 300 includes a housing 310 and a plurality of stator coils 311 disposed on an inner wall surface of the housing 310; the plurality of stator coils 311 are disposed around the plurality of permanent magnet units 421; when the plurality of stator coils 311 are energized, a moment is generated between the plurality of stator coils 311 and the plurality of permanent magnet units 421 to rotate the rotor assembly 400 with respect to the stator assembly 300.
In one embodiment, the device further comprises a base 500 fixedly connected with the housing 310; the center of the bottom surface of the base 500 is provided with a concave part for accommodating the mounting seat 160 of the fixed shaft 100, and the base 500 is fixed with the fixed shaft 100; the positioning ring block 510 is fixedly arranged on the shell 310. The outer side of the shell 310 is provided with an air supply hole 312, and the air supply hole 312 is singly and correspondingly communicated with an air supply channel 320; the air supply channel 320 includes a first channel provided in the housing 310, a second channel provided in the positioning ring block 510, and a third channel provided on the base 500; the air outlet end of the third channel is communicated with an air inlet hole on the upper surface of the mounting seat 160 at the bottom of the fixed shaft 100.
In this embodiment, the vertical turntable includes a stator assembly 300, a rotor assembly 400, and a rotary joint provided on the rotor assembly 400. The positioning ring block 510 in the stator assembly 300 is fixed on the inner wall surface of the housing 310 by screws, the base 500 is located below the positioning ring block 510, and the base 500 is fixedly arranged with the housing 310 by screws.
The rotating main shaft 420 in the rotor assembly 400 is rotatably secured to the housing 310 by a turntable bearing or a cross roller bearing. The top of the housing 310 is provided with a fixing module 330, and the fixing module 330 comprises a first fixing component 331 and a second fixing piece 332 rotatably arranged inside the first fixing component 331; the top of the first fixing component 331 is provided with an annular projection for positioning the rotary table top 410; the second fixing member 332 has a groove therein for accommodating a bearing of the rotary joint, and the second fixing member 332 is used for fixedly connecting the rotary table 410 with the rotary spindle 420. The fixed shaft 100 in the multi-channel rotary joint is installed in the middle of the base 500 through a fixed seat, and the fixed shaft 100 penetrates through the rotor assembly 400; the rotary module 200 in the multi-channel rotary joint is fixedly disposed on the rotary table 410.
The multichannel rotary joint includes: a fixed shaft 100 disposed at the center of the turntable; the fixed shaft 100 is provided with a first air inlet hole 131 and a first air outlet hole 132, and the first air inlet hole 131 is communicated with the first air outlet hole 132; a rotation module 200 disposed on the rotation table 410; the rotary module 200 has a receiving cavity 210, the rotary module 200 is disposed on the first shaft section 110 on the top of the fixed shaft 100 through the receiving cavity 210, and the rotary module 200 can rotate relative to the fixed shaft 100; the rotary module 200 has a first air passage 220, and a cavity is formed between the accommodating cavity 210 and the top end of the first shaft section 110; the cavity is used for keeping the first air outlet hole 132 and the first air passage 220 in a communicating state at any rotation angle of the rotary module 200.
According to practical situations, the air flow enters the air supply channel 320 formed by the channels in the shell 310, the positioning ring block 510 and the base 500 from the air supply hole 312 of the shell 310, and then enters the multi-channel rotary joint from the air supply channel 320, so that the air flow can flow out of the air channel of the rotary module 200 without obstruction under the condition of any rotation angle of the rotary module 200.
Referring to fig. 13 to fig. 18, in an embodiment of the present disclosure, a stator split glue filling process is further included, and the method is applied to a vertical turntable disclosed in the present disclosure, and includes:
Step 1: glue filling is carried out on the outer side of the stator coil 311, and glue filling is carried out on the inner wall of the shell 310;
step 2: mounting the stator coil 311 into the housing 310;
step 3: the housing 310 is left to stand until the glue in the housing 310 cools and solidifies.
The foregoing is a preferred embodiment of the present application, which is only for explanation of the present application, and not for limiting the protection scope of the present application in sequence, so: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (15)
1. A multi-way swivel for a turntable, comprising:
the fixed shaft is arranged at the center of the turntable;
the fixed shaft is provided with a first air inlet hole and a first air outlet hole, and the first air inlet hole is communicated with the first air outlet hole; the rotating module is arranged on the table top of the turntable;
the rotary module is provided with an accommodating cavity, the rotary module is arranged on a first shaft section at the top of the fixed shaft through the accommodating cavity, and the rotary module can perform rotary motion along the fixed shaft;
the rotary module is provided with a first air passage, and a cavity is formed between the accommodating cavity and the top end of the first shaft section;
The cavity is used for enabling the first air outlet hole and the first air passage to be in a communicated state at any rotation angle of the rotary module;
wherein, first air route sets up the top of holding cavity.
2. The multi-way swivel of claim 1, wherein the swivel module is further provided with a second air path; the second air channel is provided with a second air channel air inlet and a second air channel air outlet;
the fixed shaft is also provided with a second air inlet hole and a second air outlet hole, and the second air inlet hole is communicated with the second air outlet hole; a first annular airflow channel is arranged between the second air outlet hole and the second air passage air inlet, and the first annular airflow channel is used for enabling the second air outlet hole and the second air passage air inlet to be communicated at any rotation angle of the rotary module.
3. The multi-way swivel joint of claim 2 wherein the outer wall surface of the first shaft section of the stationary shaft is provided with a first annular groove disposed about the first shaft section; the second air outlet hole is arranged in the first annular groove; the first annular groove is used for forming the first annular airflow channel.
4. A multi-way swivel joint as claimed in claim 3 wherein the swivel module is further provided with a third air passage; the third air channel is provided with a third air channel air inlet and a third air channel air outlet; the fixed shaft is also provided with a third air inlet hole and a third air outlet hole, and the third air inlet hole is communicated with the third air outlet hole; a second annular airflow channel is arranged between the third air outlet and the third air channel air inlet, and the second annular airflow channel is used for enabling the third air outlet and the third air channel air inlet to be communicated at any rotation angle of the rotary module.
5. The multi-way swivel joint of claim 4 wherein the outer wall surface of the first shaft section of the stationary shaft is provided with a second annular groove, the second annular groove being disposed around the first shaft section, and the second annular groove and the first annular groove being axially spaced from each other; the third air outlet hole is arranged in the second annular groove; the second annular groove is used for forming the second annular airflow channel.
6. The multi-way swivel joint of claim 5 wherein the stationary shaft has a mounting base at the bottom for mounting the stationary shaft to a machine tool; the first air inlet hole is formed in the upper surface of the mounting seat, and the first air outlet hole is formed in the top surface of the first shaft section; the first air inlet hole is communicated with the first air outlet hole through a first air flow channel; the first airflow passage comprises a first airflow passage horizontal part and a first airflow passage vertical part which are communicated; the first airflow channel horizontal part is communicated with the first air inlet hole; the first airflow channel vertical part is communicated with the first air outlet hole;
And/or the second air inlet hole is arranged on the upper surface of the mounting seat, and the second air outlet hole is arranged on the side wall surface of the first shaft section; the second air inlet hole is communicated with the second air outlet hole through a second air flow channel; the second air flow channel comprises a second air flow channel horizontal part and a second air flow channel vertical part which are communicated; the second air flow passage horizontal part is communicated with a second air inlet hole; the second air flow passage vertical part is communicated with a second air outlet hole;
and/or a third air inlet hole is formed in the upper surface of the mounting seat, and the third air outlet hole is formed in the side wall surface of the first shaft section; the third air inlet hole is communicated with the third air outlet hole through a third air flow channel; the third air flow passage comprises a third air flow passage horizontal part and a third air flow passage vertical part which are communicated; the third air flow passage horizontal part is communicated with a third air inlet hole; the third air flow passage vertical part is communicated with the third air outlet hole.
7. The multi-way swivel of claim 6 wherein the first, second and third flow passage first horizontal portions are disposed at the same axial position within the mount;
And/or the first airflow channel vertical part, the second airflow channel vertical part and the third airflow channel vertical part are radially arranged at intervals in the fixed shaft.
8. The multi-way swivel joint of any one of claims 1-7, wherein the swivel module comprises a swivel panel, a first ring block, a second ring block, and a third ring block; the third ring block is provided with screws which sequentially penetrate through the second ring block and the first ring block and are fixedly connected with the rotating panel; the circular holes on the inner sides of the first ring block, the second ring block and the third ring block and the containing circular holes below the rotating panel form a containing cavity; the depth of the accommodating cavity is larger than the length of the first shaft section;
and/or the fixed shaft is provided with a second shaft section, the second shaft section is provided with a bearing, and the inner ring of the bearing is tightly fixed with the outer wall surface of the second shaft section; the bearing is positioned below the rotating module, and an outer ring of the bearing rotates synchronously with the rotating module.
9. The multi-way swivel joint of claim 8 wherein a first annular gap is provided in a sidewall of the receiving circular aperture of the swivel panel, the first annular gap being located on a contact surface of the swivel panel and the first annular block; a first dynamic sealing piece is arranged between the inside of the first annular gap and the first shaft section and is used for preventing gas in the cavity from leaking from the intersection of the rotating panel and the first shaft section;
And/or a second annular gap is arranged on the inner side wall of the first annular block, and the second annular gap is positioned on the contact surface of the first annular block and the second annular block; a second dynamic sealing piece is arranged between the inside of the second annular gap and the first shaft section and is used for preventing gas in the first annular gas flow channel from leaking;
and/or a third annular gap is arranged on the inner side wall of the second annular block, and the third annular gap is positioned on the contact surface of the second annular block and the third annular block; a third dynamic seal is disposed between the first shaft section and the interior of the third annular gap for preventing gas leakage in the second annular gas flow passage.
10. The multi-way swivel joint of claim 9 wherein the center of the swivel panel has a first air passage in a vertical direction;
and/or, the second air channel in the rotary module comprises a second air channel horizontal part and a second air channel vertical part which are mutually communicated; the second air channel horizontal part is communicated with a second air channel air inlet; the vertical part of the second air channel is communicated with the air outlet of the second air channel;
and/or the third air passage in the rotating module comprises a third air passage horizontal part and a third air passage vertical part which are communicated with each other; the third air channel horizontal part is communicated with a third air channel air inlet; and the vertical part of the third air passage is communicated with the air outlet of the third air passage.
11. A vertical turntable disposed on a machine tool, the vertical turntable comprising:
a stator assembly;
a rotor assembly rotatably disposed on the stator assembly; the rotor assembly having a rotating table top that is rotationally movable relative to the stator assembly; and a multi-path swivel joint detachably provided on the swivel table top, the multi-path swivel joint being as claimed in any one of claims 1 to 10.
12. The vertical turntable of claim 11 wherein the rotating table top has a bearing surface and a mounting surface; a step accommodating channel is arranged in the center of the bearing surface and used for fixing a rotating module of the multi-channel rotating joint; the mounting surface is provided with a plurality of annular accommodating grooves which are coaxially arranged;
and/or the stator assembly comprises a shell, and a plurality of annular convex blocks corresponding to the plurality of annular accommodating grooves are arranged at the top of the stator assembly;
and/or, when the rotary table top is mounted on the shell in a limiting way, fit gaps are formed between the plurality of annular accommodating grooves and the plurality of annular protruding blocks.
13. The vertical turntable of claim 12, wherein the rotor assembly includes a rotating spindle and a plurality of permanent magnet units disposed on an outer wall surface of the rotating spindle; the rotary main shaft is arranged around a fixed shaft in the multi-path rotary joint; the plurality of permanent magnet units are arranged around the rotating main shaft;
And/or the stator assembly comprises a shell and a plurality of stator coils arranged on the inner wall surface of the shell; the plurality of stator coils are arranged around the plurality of permanent magnet units; when the plurality of stator coils are energized, a torque is generated between the plurality of stator coils and the plurality of permanent magnet units to cause the rotor assembly to rotate relative to the stator assembly.
14. The vertical turntable according to any one of claims 11 to 13, further comprising:
the base is fixedly connected with the shell; the bottom center of the base is provided with a concave part, the concave part is used for accommodating a mounting seat of the fixed shaft, and the base is fixed with the fixed shaft;
the positioning ring block is fixedly arranged on the shell.
15. The vertical turntable of claim 14, wherein an air supply hole is formed at the outer side of the housing, and the air supply hole is singly and correspondingly communicated with an air supply channel; the air supply channel comprises a first channel arranged on the shell, a second channel arranged in the positioning ring block and a third channel arranged on the base; and the air outlet end of the third channel is communicated with the air inlet hole on the mounting seat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241144.0A CN114526389A (en) | 2022-03-11 | 2022-03-11 | Multi-channel rotary joint and vertical turntable |
| CN2022102411440 | 2022-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116252157A true CN116252157A (en) | 2023-06-13 |
Family
ID=81627602
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210241144.0A Withdrawn CN114526389A (en) | 2022-03-11 | 2022-03-11 | Multi-channel rotary joint and vertical turntable |
| CN202310235481.3A Pending CN116252157A (en) | 2022-03-11 | 2023-03-10 | Multi-path rotary joint and vertical turntable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210241144.0A Withdrawn CN114526389A (en) | 2022-03-11 | 2022-03-11 | Multi-channel rotary joint and vertical turntable |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114526389A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717648A (en) * | 2023-08-04 | 2023-09-08 | 滕州市大宏机械制造有限公司 | Rotary joint for liquid circulation cooling of general equipment |
-
2022
- 2022-03-11 CN CN202210241144.0A patent/CN114526389A/en not_active Withdrawn
-
2023
- 2023-03-10 CN CN202310235481.3A patent/CN116252157A/en active Pending
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| Publication number | Publication date |
|---|---|
| CN114526389A (en) | 2022-05-24 |
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