Air slip ring with multi-section structure
Through the multi-stage structure design, the processing difficulty problem caused by the increase in the size of the rotating shaft in the prior art is solved, and more efficient processing and maintenance are achieved, and costs are reduced.
Patent Information
- Application Number
- CN202420888728.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The rotation shaft of the existing air slip ring is usually designed as the number of air channels increases, and the size of the rotation shaft increases, resulting in increased processing difficulty, which easily leads to damage to the workpiece and unnecessary losses.
The air-slip ring designed with a multi-stage structure enables segmented processing and assembly of the rotation shaft by dividing the rotation shaft into multiple sections and connecting it with screws and sealing gaskets.
Effectively control the processing size of the workpiece, reduce processing difficulty and cost, improve processing efficiency, and allow the replacement of damaged paragraphs on demand during maintenance, reducing maintenance costs.
Smart Images
Figure CN222458791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air slip rings, in particular to an air slip ring with a multi-section structure. Background Art
[0002] At present, the air slip ring is a 360-degree rotating device that can pass various gases and liquids, also called a rotary joint. The air slip ring is mainly assembled by a rotating shaft, an outer shell, a bearing, and a sealing ring. Each passage is isolated by a seal. The rotating shaft is fixed on the rotating module of the equipment, and it can rotate with the equipment. It is usually widely used in automation, packaging machinery, rotary tables, robots, medical equipment, etc. It is a common precision pneumatic component. Working principle: the shaft rotates and the outer shell is fixed. Secondly, if the outer shell needs to rotate, the shaft is fixed. This is a relatively rotating product, similar to the principle of bearing rotation.
[0003] The rotating shaft of most existing air slip rings is made into an integral whole. The advantage of this is that it can ensure the airtightness between the air channels. However, as the number of air channels increases, the size of the rotating shaft becomes longer and longer, which makes the processing of the air channels more and more difficult. If you are not careful, the workpiece will be scrapped, causing unnecessary losses.
[0004] For this reason, we have developed a multi-stage structure air slip ring to solve the above problems. Utility Model Content
[0005] The utility model aims to overcome the deficiencies of the prior art and to provide a multi-stage structured gas slip ring, which has the advantages of improving processing efficiency, reducing processing costs, reducing maintenance costs, and the like.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-stage structure air sliding ring, including a first air shaft, a first shell, a second air shaft and a second shell, a boss with an annular structure is provided at one end of the first air shaft, and a first sink groove is provided at the other end, a first bearing is crimped between the boss and the first shell, the first sink groove and one end of the second air shaft are crimped and sealed by screws, first air holes are staggered on the outer wall of the first shell, a first through hole is provided at the center position of the first air shaft, a second through hole is provided at the center position of the second air shaft, the first through hole is communicated with the second through hole, second air holes are staggered on the outer wall of the second shell, one side of the second bearing abuts against a retaining spring, and the retaining spring is clamped with the second air shaft;
[0007] The second gas shaft is rollingly connected to one end of the second shell through a second bearing, a first O-ring is crimped between the first gas shaft and the first shell, a second O-ring is crimped between the second gas shaft and the second shell, and the first shell and the second shell are fixedly connected by a pin;
[0008] The side wall of the boss is provided with a first countersunk hole, a second countersunk hole and a third countersunk hole distributed circumferentially, the angle between the first countersunk hole and the second countersunk hole is α, and the angle between the second countersunk hole and the third countersunk hole is α.
[0009] Preferably, a fourth countersunk hole, a fifth countersunk hole and a sixth countersunk hole are uniformly distributed circumferentially in sequence from the outside to the inside at one end of the boss, the fourth countersunk hole is connected to the first countersunk hole, the fifth countersunk hole is connected to the second countersunk hole, and the sixth countersunk hole is connected to the third countersunk hole.
[0010] Preferably, the angle α is in the range of 10°≤α≤15°.
[0011] Preferably, the first through hole and the second through hole have the same aperture.
[0012] Preferably, a first inner ring groove is respectively provided at both sides of the bottom end of the first air hole, and the first inner ring groove is crimped with the first O-ring.
[0013] Preferably, the first air shaft is provided with a first outer ring groove at the bottom end of the first air hole, and rounded corners are provided at both ends of the first outer ring groove.
[0014] Preferably, the first sinking groove is provided with a first threaded hole, and one end of the second air shaft is provided with a stepped groove, and a sealing gasket is crimped between the first threaded hole and the stepped groove by screws.
[0015] Preferably, a first connecting hole and a second connecting hole are uniformly distributed around the circumference in sequence from inside to outside at one end of the second through hole, and the first connecting hole, the second connecting hole and the second air hole are connected.
[0016] Preferably, the angle between the center of the stepped groove and the line connecting the center of the second connecting hole to the center of the second through hole is β, and the angle β=15°.
[0017] Preferably, the angle between the center of the stepped groove and the line connecting the center of the first connecting hole to the center of the second through hole is γ, and the angle γ=45°.
[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0019] The utility model discloses a multi-section structure air slip ring, and a rotating shaft adopts a multi-section structure design scheme, so that the processing size of the workpiece is effectively controlled within a reasonable range, the difficulty of workpiece processing is reduced, and the efficiency is improved; a large-sized workpiece is divided into a plurality of small-sized workpieces, the processing difficulty is reduced, the workpiece processing efficiency is improved, and thus the processing cost is reduced; and due to the multi-section structure of the rotating shaft, when the product is repaired, whichever section is damaged can be replaced according to which section is damaged, without replacing the entire section, thereby reducing the repair cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of the multi-stage gas slip ring of the utility model.
[0021] Figure 2 It is a left view of the first gas shaft of the utility model.
[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the structure in the C direction.
[0023] Figure 4 For this utility model Figure 1 Enlarged view of point A in the middle.
[0024] Figure 5 It is a left side view of the second gas shaft of the utility model. DETAILED DESCRIPTION
[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] Figures 1 to 5 In the invention, a multi-stage gas slip ring is provided, comprising a first gas shaft 10, a first shell 20, a second gas shaft 50 and a second shell 30. A boss 101 of an annular structure is provided at one end of the first gas shaft 10, and a first sinking groove 105 is provided at the other end. A first bearing 60 is pressed between the boss 101 and the first shell 20. A shoulder 103 is provided near the boss 101 of the first gas shaft 10, and a pressing groove 202 is provided on the inner wall of one end of the first shell 20. The first bearing 60 is crimped between the shoulder 103 and the pressing groove 202, the first sink 105 and one end of the second gas shaft 50 are crimped and sealed by a screw 40, the outer wall of the first housing 20 is staggered with first air holes 21, the center of the first gas shaft 10 is provided with a first through hole 102, the center of the second gas shaft 50 is provided with a second through hole 505, the first through hole 102 is connected with the second through hole 505, and the apertures of the first through hole 102 and the second through hole 505 are the same. The outer wall of the second housing 30 is staggered with second air holes 31, one side of the second bearing 65 abuts against a retaining spring 70, and the retaining spring 70 is clamped with the second gas shaft 50. A clamping groove 506 is provided at one end of the second gas shaft 50, and the clamping groove 506 is clamped with a retaining spring 70.
[0027] The second air shaft 50 is rollingly connected to one end of the second shell 30 via a second bearing 65 , a first O-ring 80 is crimped between the first air shaft 10 and the first shell 20 , a second O-ring 85 is crimped between the second air shaft 50 and the second shell 30 , and the first shell 20 and the second shell 30 are fixedly connected via a pin 49 .
[0028] The side wall of the boss 101 is provided with a first countersunk hole 11, a second countersunk hole 12 and a third countersunk hole 13 which are circumferentially distributed. At one end of the boss 101, a fourth countersunk hole 111, a fifth countersunk hole 121 and a sixth countersunk hole 131 which are circumferentially evenly distributed are provided in sequence from the outside to the inside. The angle between the first countersunk hole 11 and the second countersunk hole 12 is α, and the angle between the second countersunk hole 12 and the third countersunk hole 13 is α. The angle α ranges from 10°≤α≤15°, and α is preferably 15° or 10°. When α=15°, the product is a 24-channel gas slip ring. The fourth countersunk hole 111 is connected to the first countersunk hole 11, the fifth countersunk hole 121 is connected to the second countersunk hole 12, and the sixth countersunk hole 131 is connected to the third countersunk hole 13.
[0029] A first inner ring groove 29 is provided at both sides of the bottom end of the first air hole 21, and the first inner ring groove 29 is press-fitted with the first O-ring 80. The first air shaft 10 is provided with a first outer ring groove 108 at the bottom end of the first air hole 21, and rounded corners 109 are provided at both ends of the first outer ring groove 108. The first sink groove 105 is provided with first threaded holes 19 evenly distributed around the circumference, and a stepped groove 55 is provided at one end of the second air shaft 50, and a silicone sealing pad 45 is press-fitted between the first threaded hole 19 and the stepped groove 55 through a screw 40.
[0030] At one end of the second through hole 505, a first connecting hole 502 and a second connecting hole 501 are arranged in sequence from the inside to the outside, and the first connecting hole 502 and the second connecting hole 501 are connected to the second air hole 31. The angle between the center of the stepped groove 55 and the center of the second connecting hole 501 and the center of the second through hole 505 is β, and the angle β=15°. The angle between the center of the stepped groove 55 and the center of the first connecting hole 502 and the center of the second through hole 505 is γ, and the angle γ=45°. This is set corresponding to the sixth counterbore 131, connecting the two-stage structure.
[0031] The multi-stage structure air slip ring is a 24-channel air slip ring. The first countersunk hole 11, the second countersunk hole 12 and the third countersunk hole 13 of the first air shaft 10 are connected to the first air hole 21 corresponding to the first shell 20, the fifth countersunk hole 121 is connected to the second connecting hole 501, the sixth countersunk hole 131 is connected to the first connecting hole 502, the second connecting hole 501 and the first connecting hole 502 are connected to the corresponding second air hole 31, and the air slip ring is connected to a 4mm air pipe. It consists of two major parts, the rotor and the stator. Either the rotor end rotates and the stator end is stationary, or the stator end rotates and the rotor end is stationary. There is no essential difference between these two working states. The rotating shaft is divided into two sections from the middle, and a silicone sealing pad 45 is added between the rotating shafts at both ends to maintain the air tightness between each channel. Then the two rotating shafts are fixed with screws 40 to connect them as a whole. In this way, the processing length is shortened by half, the drilling depth is reduced, the drilling is not easy to deviate, the damage to the workpiece is reduced, and the processing is convenient.
[0032] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.
Claims
1. A multi-stage gas slip ring, characterized in that: The invention comprises a first air shaft (10), a first shell (20), a second air shaft (50) and a second shell (30); a boss (101) of an annular structure is provided at one end of the first air shaft (10), and a first sink groove (105) is provided at the other end; a first bearing (60) is crimped between the boss (101) and the first shell (20); the first sink groove (105) and one end of the second air shaft (50) are crimped and sealed by screws (40); first air holes (21) are staggered on the outer wall of the first shell (20); A first through hole (102) is provided at the center of the first gas shaft (10), a second through hole (505) is provided at the center of the second gas shaft (50), the first through hole (102) is communicated with the second through hole (505), second gas holes (31) are staggered on the outer wall of the second shell (30), the second gas shaft (50) is rollingly connected to one end of the second shell (30) via a second bearing (65), one side of the second bearing (65) abuts against a retaining spring (70), and the retaining spring (70) is engaged with the second gas shaft (50); A first O-ring (80) is crimped between the first air shaft (10) and the first shell (20), a second O-ring (85) is crimped between the second air shaft (50) and the second shell (30), and the first shell (20) and the second shell (30) are fixedly connected by a pin (49); The side wall of the boss (101) is provided with a first countersunk hole (11), a second countersunk hole (12) and a third countersunk hole (13) which are distributed circumferentially, the angle between the first countersunk hole (11) and the second countersunk hole (12) is α, and the angle between the second countersunk hole (12) and the third countersunk hole (13) is α.
2. The multi-stage gas slip ring according to claim 1, characterized in that: A fourth countersunk hole (111), a fifth countersunk hole (121) and a sixth countersunk hole (131) are arranged at one end of the boss (101) in sequence from outside to inside and are evenly distributed around the circumference; the fourth countersunk hole (111) is connected to the first countersunk hole (11); the fifth countersunk hole (121) is connected to the second countersunk hole (12); and the sixth countersunk hole (131) is connected to the third countersunk hole (13).
3. The multi-stage gas slip ring according to claim 2, characterized in that: The range of the angle α is 10°≤α≤15°.
4. The multi-stage gas slip ring according to claim 1, characterized in that: The first through hole (102) and the second through hole (505) have the same aperture.
5. The multi-stage gas slip ring according to claim 1, characterized in that: A first inner ring groove (29) is respectively provided at both sides of the bottom end of the first air hole (21), and the first inner ring groove (29) is press-connected with the first O-ring (80).
6. The multi-stage structure gas slip ring according to claim 5, characterized in that: The first air shaft (10) is provided with a first outer ring groove (108) at the bottom end of the first air hole (21), and rounded corners (109) are provided at both ends of the first outer ring groove (108).
7. The multi-stage gas slip ring according to claim 1, characterized in that: The first sink groove (105) is provided with a first threaded hole (19), one end of the second air shaft (50) is provided with a stepped groove (55), and a sealing gasket (45) is pressed between the first threaded hole (19) and the stepped groove (55) via a screw (40).
8. The multi-stage gas slip ring according to claim 7, characterized in that: At one end of the second through hole (505), a first connecting hole (502) and a second connecting hole (501) are arranged in sequence from the inside to the outside and are evenly distributed around the circumference; the first connecting hole (502), the second connecting hole (501) and the second air hole (31) are connected.
9. The multi-stage gas slip ring according to claim 8, characterized in that: The angle between the center of the stepped groove (55) and the line connecting the center of the second connecting hole (501) to the center of the second through hole (505) is β, and the angle β=15°.
10. The multi-stage gas slip ring according to claim 9, characterized in that: The included angle between the center of the stepped groove (55) and the line connecting the center of the first connecting hole (502) to the center of the second through hole (505) is γ, and the included angle γ=45°.