Airtight slip ring

Abstract

The utility model discloses an airtight slip ring, which relates to the technical field of air slip rings, and comprises a pneumatic part and a rotating part arranged at the output end of the pneumatic part, the rotating part is provided with a mounting part capable of synchronously rotating with the rotating part, and the mounting part is provided with two groups of support columns which are symmetrically distributed. The device further comprises a plurality of movable locking pins arranged outside the rotating part, and a groove capable of containing the supporting column is formed in the rotating part. According to the utility model, the distance between the mounting part and the rotating part can be adjusted so as to be suitable for different mounting environments. When the distance between the supporting column and the mounting part is adjusted, the stability of the supporting column can be kept through the combined arrangement of the locking pin and the locking rod, so that the mounting part can stably and accurately drive a rotating structure of equipment to operate, and the stability of operation of the rotating structure is guaranteed. Moreover, in the adjusting process, the locking pins at the multiple point positions can be kept stable after being moved out of the alignment holes, so that the distance between the mounting part and the rotating part can be quickly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of air slip rings, and particularly relates to an airtight slip ring. Background Art

[0002] An airtight slip ring is a rotating connection device specifically used for transmitting gas signals, usually composed of a housing, a rotating part, and a gas channel. It allows the device to transmit gas signals during rotation while maintaining the stability of the connection. Air slip rings are widely used in multiple industrial fields, and some typical applications include: rotating machinery, automation equipment, robots, etc. The airtight slip ring is also called a pneumatic rotary joint, which is a precision device that can continuously rotate 360 degrees to transport gas media. This device can achieve high-speed rotation and motion control, with excellent smoothness and precision.

[0003] In the existing airtight slip rings, most of the rotating parts at the bottom are connected to the rotating structure of the device through an installation structure, so that during the operation of the airtight slip ring, the rotating structure of the device can be smoothly driven to rotate to achieve the purpose of high-speed rotation. However, the outside of the airtight slip ring is usually connected to the gas path, and most of the installation structures responsible for assembling with the rotating structure are fixedly connected to the rotating part. If the heights of the rotating structures are different, the entire airtight slip ring cannot make adaptive adjustments during the assembly process, and the airtight slip ring can only be applicable to the installation environment with the same height. Summary of the Utility Model

[0004] In view of the above problems, the present application provides an airtight slip ring.

[0005] To achieve the above object, the present application provides the following technical solution: An airtight slip ring includes a pneumatic part and a rotating part provided at the output end of the pneumatic part. An installation part that can rotate synchronously with it is provided on the rotating part, and two groups of symmetrically distributed support columns are provided on the installation part.

[0006] It also includes a plurality of movable locking pins provided outside the rotating part. A groove for accommodating the support columns is opened in the rotating part. Two limiting holes are opened in the inner wall of the groove along the parallel direction and are distributed from top to bottom. A plurality of alignment holes corresponding to the limiting holes are opened on the support columns. The bottom end of the locking pin penetrates through the lower limiting hole and is inserted into the alignment hole, and a locking rod is installed at the top end of the part of the locking pin exposed outside the rotating part. The locking rod is inserted into the upper limiting hole.

[0007] Furthermore, guide sleeves are threadedly connected to the locking rods. Pressure springs coaxially distributed with the locking rods are provided on the guide sleeves, and the ends of the pressure springs are exposed outside the rotating part.

[0008] A gland that can accommodate the locking rod to pass through is provided outside the rotating part, and one end of the pressure spring exposed to the outside of the rotating part is connected to the gland. When the locking pin, the locking rod, and the guide sleeve move synchronously, the pressure spring contracts.

[0009] Further, a positioning support for accommodating the insertion of the locking pin is provided at one end of the locking rod close to the locking pin. Vertical threaded heads are provided at the top ends of the locking pins, and channels for accommodating the rotation of the threaded heads are provided on the positioning supports.

[0010] Further, pressure rings are provided on the parts of the threaded heads exposed outside the channels, and silica gel pads are provided at one ends of the pressure rings close to the positioning supports, and the silica gel pads are pressed against the surfaces of the positioning supports.

[0011] Further, a plurality of guide grooves corresponding to the locking pins are provided on the outer surface of the rotating part, and the guide grooves communicate with the limiting holes located below. When the locking pin rotates along the central axis direction of the positioning support, the bottom end of the locking pin rotates synchronously inside the guide groove.

[0012] Further, an adapter plate that can rotate synchronously with it is provided on the mounting part.

[0013] In summary, the technical effects and advantages of the present utility model are as follows:

[0014] In the present utility model, the distance between the mounting part and the rotating part can be adjusted to be applicable to different installation environments. When adjusting the distance between the two, through the combined setting of the locking pin and the locking rod, the stability of the support column can be maintained, so that the mounting part can stably and accurately drive the rotating structure of the device to operate, ensuring the stability of the operation of the rotating structure. And during the adjustment process, the locking pins at multiple points can maintain stability after moving out of the alignment holes, facilitating the quick adjustment of the distance between the mounting part and the rotating part. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 It is a structural schematic diagram after the mounting part and the rotating part of the present utility model are separated.

[0018] Figure 3It is a schematic diagram of the structure of the rotating part of the utility model after being cut open.

[0019] Figure 4 This is a schematic diagram of the structure of the guide sleeve of the utility model after being cut open.

[0020] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] Figure 6 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0022] In the figure: 1. Pneumatic part; 2. Rotating part; 21. Limiting hole; 22. Guide groove; 3. Mounting part; 31. Support column; 311. Alignment hole; 32. Connecting plate; 4. Locking pin; 41. Threaded column head; 42. Pressure ring; 43. Silicone pad; 5. Locking rod; 51. Positioning bracket; 6. Guide sleeve; 7. Pressure cover; 8. Pressure spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: Reference Figures 1-4 The airtight slip ring shown in the figure comprises a pneumatic part 1 and a rotating part 2 arranged at the output end of the pneumatic part 1, a mounting part 3 which can rotate synchronously with the rotating part 2 is arranged on the rotating part 2, and two groups of support columns 31 which are symmetrically distributed are arranged on the mounting part 3. The distance between the mounting part 3 and the rotating part 2 can be adjusted to suit different installation environments. When the distance between the two is adjusted, in order to maintain the stability of the connection between the two, the support columns 31 always connect the rotating part 2 and the mounting part 3.

[0025] It also includes a plurality of movable locking pins 4 disposed outside the rotating part 2, a groove for accommodating the support column 31 is provided inside the rotating part 2, two limiting holes 21 are provided on the inner wall of the groove along a parallel direction and distributed from top to bottom, and a plurality of alignment holes 311 corresponding to the limiting holes 21 are provided on the support column 31. When the installation part 3 and the rotating part 2 are adjusted in distance, the alignment holes 311 at different heights can change their relative positions with the limiting holes 21 until the alignment holes 311 at a specified height correspond to the limiting holes 21.

[0026] When the alignment hole 311 is aligned with the limit hole 21, the bottom end of the locking pin 4 passes through the lower limit hole 21 and is inserted into the alignment hole 311, and a locking rod 5 is installed at the top of the part of the locking pin 4 exposed outside the rotating part 2, and the locking rod 5 is inserted into the upper limit hole 21.

[0027] The combined setting of the locking pin 4 and the locking rod 5 can maintain the stability of the support column 31, and further ensure the stability of the mounting part 3 itself when the rotating part 2 and the mounting part 3 rotate synchronously, so that the mounting part 3 can stably and accurately drive the rotating structure of the device to operate, ensuring the stability of the operation of the rotating structure.

[0028] Such as Figure 5 、 Figure 6 As shown, in order to maintain the tightness of the connection between the locking rod 5 and the limit hole 21, guide sleeves 6 are threadedly connected to the locking rods 5, and pressure springs 8 coaxially distributed with the locking rods 5 are provided on the guide sleeves 6, and the ends of the pressure springs 8 are exposed outside the rotating part 2.

[0029] In order to limit the movement of the pressure spring 8, a gland 7 through which the locking rod 5 can pass is provided outside the rotating part 2, and one end of the pressure spring 8 exposed outside the rotating part 2 is connected to the gland 7. When the locking pin 4, the locking rod 5 and the guide sleeve 6 move synchronously, the pressure spring 8 contracts until the locking pin 4 moves out of the alignment hole 311, and the restriction on the support column 31 can be released, so that the mounting part 2 and the rotating part 3 can adjust the distance until the entire airtight slip ring is adjusted to the specified height.

[0030] Such as Figure 5 、 Figure 6 As shown, during the process of adjusting the distance between the mounting part 2 and the rotating part 3, in order to prevent the locking pin 4 moved out of the alignment hole 311 from moving back into the alignment hole 311 under the elastic potential energy of the pressure spring 8. Positioning trays 51 capable of accommodating the insertion of the locking pins 4 are provided at one ends of the locking rods 5 close to the locking pins 4, and vertical threaded heads 41 are provided at the tops of the locking pins 4, and channels capable of accommodating the rotation of the threaded heads 41 are opened on the positioning trays 51. When the locking pin 4 moves out of the alignment hole 311, it can rotate along the central axis direction of the positioning tray 51, offsetting the alignment hole 311 and the limit hole 21, which can effectively prevent the locking pin 4 from moving back into the alignment hole 311 under the elastic potential energy of the pressure spring 8. The locking pins 4 at multiple points can maintain stability after moving out of the alignment hole 311, so as to facilitate quickly adjusting the distance between the mounting part 2 and the rotating part 3.

[0031] On the part of the threaded stud head 41 exposed outside the channel, a pressure ring 42 matching with it is provided. On one end of the pressure ring 42 close to the positioning support 51, a silica gel pad 43 is provided, and the silica gel pad 43 is pressed against the surface of the positioning support 51. Before controlling the rotation of the locking pin 4, the pressure ring 42 can be rotated so that the silica gel pad 43 moves away from the pressure ring 42, eliminating the pressing resistance of the silica gel pad 43 on the pressure ring 42, enabling the locking pin 4 to rotate smoothly.

[0032] When the locking pin 4 rotates by a certain angle and is offset from the alignment hole 311 and the limit hole 21, the pressure ring 42 can be controlled to rotate again, prompting the silica gel pad 43 to press against the surface of the positioning support 51, forming a pressing resistance on the pressure ring 42, restricting the sliding of the locking pin 4, and maintaining the stability of the locking pin 4 in the offset state.

[0033] As Figure 5 , Figure 6 As shown, a plurality of guide grooves 22 corresponding to the locking pins 4 are formed on the outer surface of the rotating part 2. The guide grooves 22 communicate with the limit holes 21 located below. When the locking pin 4 rotates along the central axis direction of the positioning support 51, the bottom end of the locking pin 4 rotates synchronously inside the guide groove 22. The guide groove 22 forms a space that can accommodate the rotation of the locking pin 4.

[0034] As Figure 1 As shown, in order to enable the installation part 3 to be stably connected to the rotating structure of the device, a connecting plate 32 that can rotate synchronously with it is provided on the installation part 3.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An airtight slip ring, comprising a pneumatic part (1) and a rotating part (2) provided at the output end of the pneumatic part (1), characterized in that: The rotating part (2) is provided with a mounting part (3) that can rotate synchronously with it, and the mounting part (3) is provided with two groups of symmetrically distributed support columns (31); It further includes a plurality of movable locking pins (4) arranged outside the rotating part (2). A groove for accommodating the support column (31) is formed in the rotating part (2). Two limiting holes (21) distributed from top to bottom are formed in the inner wall of the groove along a parallel direction. A plurality of alignment holes (311) corresponding to the limiting holes (21) are formed in the support column (31). The bottom end of the locking pin (4) penetrates through the lower limiting hole (21) and is inserted into the alignment hole (311). A locking rod (5) is installed at the top of the part of the locking pin (4) exposed outside the rotating part (2), and the locking rod (5) is inserted into the upper limiting hole (21).

2. The hermetic slip ring according to claim 1, wherein: Guide sleeves (6) are threadedly connected to the locking rods (5), and compression springs (8) coaxially distributed with the locking rods (5) are provided on the guide sleeves (6). The ends of the compression springs (8) are exposed outside the rotating part (2); A gland (7) for accommodating the locking rod (5) to pass through is provided outside the rotating part (2). One end of the compression spring (8) exposed outside the rotating part (2) is connected to the gland (7). When the locking pin (4), the locking rod (5), and the guide sleeve (6) move synchronously, the compression spring (8) contracts.

3. The hermetic slip ring according to claim 2, characterized in that: Positioning brackets (51) for accommodating the insertion of the locking pins (4) are provided at one ends of the locking rods (5) close to the locking pins (4). Vertical threaded heads (41) are provided at the tops of the locking pins (4). Channels for accommodating the rotation of the threaded heads (41) are formed in the positioning brackets (51).

4. The hermetic slip ring according to claim 3, wherein: Pressure rings (42) matching with the threaded heads (41) are provided on the parts of the threaded heads (41) exposed outside the channels. Silicone pads (43) are provided at one ends of the pressure rings (42) close to the positioning brackets (51), and the silicone pads (43) are pressed against the surfaces of the positioning brackets (51).

5. The hermetic slip ring according to claim 4, wherein: Guide grooves (22) corresponding to the locking pins (4) are formed on the outer surface of the rotating part (2). The guide grooves (22) communicate with the lower limiting holes (21). When the locking pin (4) rotates along the central axis direction of the positioning bracket (51), the bottom end of the locking pin (4) rotates synchronously inside the guide groove (22).

6. The hermetic slip ring according to claim 1, wherein: An adapter plate (32) that can rotate synchronously with it is provided on the mounting part (3).

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