Multi-degree-of-freedom air knife support

Abstract

The utility model relates to a multi-degree-of-freedom air knife support which comprises a first circular plate at the top of a first circular ring, a bearing and a second circular ring which are coaxial, a rotating shaft and a sleeve are fixedly installed in the first circular ring, one end of the sleeve is sleeved with a first gear, and a first servo motor, a second servo motor and a limiting plate are arranged on the first circular plate. An output shaft of the first servo motor is sleeved with a second gear, and the second gear is meshed with the first gear; a gear ring is arranged at the top of the second circular ring, a round rod is arranged on the limiting plate, a third gear is arranged on the round rod, the third gear is meshed with the inner wall gear face of the gear ring, the top end of the round rod is sleeved with a first bevel gear, an output shaft of the second servo motor is sleeved with a second bevel gear, and the first bevel gear is meshed with the second bevel gear. A connecting rod is arranged at the bottom of the sleeve, the first servo motor can drive the sleeve to rotate, and the second servo motor can drive the first circular ring to circumferentially rotate relative to the second circular ring, so that the bottom end of the connecting rod can freely rotate in a hemispherical surface.

Description

TECHNICAL FIELD

[0001] The utility model relates to production manufacturing technical field, especially a kind of multi-degree-of-freedom air knife support. BACKGROUND

[0002] Air knife is the wind produced by fan operation, and the wind is cut by blade edge, simply speaking, the wind we commonly see is generated by the friction between fan blade and air, and the common electric fan, ventilator, exhaust fan, industrial fan has super-speed turbine fan, high-speed centrifugal fan, vortex fan, etc., the function of air knife is to use the wind produced by industrial blower, and the wind is transmitted to the inside of air knife through pipeline, to form a compressed air flow, and then transmitted to workpiece through a blade edge transverse section, generally, air knife is mainly used for industrial production line to blow water or cut water drying, and industrial dust removal, so the mounting bracket of air knife needs higher degree of freedom to facilitate air knife movement operation. SUMMARY

[0003] The utility model aims at providing a kind of multi-degree-of-freedom air knife support to solve the problems existing in the prior art.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A kind of multi-degree-of-freedom air knife support, including first circular ring, bearing and second circular ring, the bearing is sleeved on the outer wall of the first circular ring, the second circular ring is sleeved on the outer ring of the bearing, the top of the first circular ring is uniformly provided with a plurality of support blocks in the axial direction, the top of the support block is fixedly installed with same first circular plate, the inside of the first circular ring is fixedly installed with shaft, and the axial direction of the shaft is perpendicular to the axis of the first circular ring, the middle segment of the shaft is rotatably sleeved with sleeve, one end of the sleeve is sleeved with first gear, the top of the first circular plate is fixedly installed with first servo motor, the output shaft of the first servo motor is sleeved with second gear, the first circular plate is provided with the avoiding hole that penetrates up and down, the avoiding hole is used to avoid the meshing path of first gear and second gear, the bottom of the second gear passes through avoiding hole and is engaged with the first gear;

[0006] The top of the second circular ring is fixedly installed with a gear ring coaxial with the second circular ring, an inner ring of the gear ring is provided with a gear surface, the top of the first circular plate is fixedly installed with a second servo motor, the second servo motor is arranged opposite to the first servo motor on the top of the first circular plate, the top of the first circular plate is fixedly installed with a limiting plate, a circular hole penetrating through the limiting plate in the up-down direction is formed in the top of the limiting plate, a circular rod coaxial with the circular hole is rotatably installed in the circular hole, a third gear is sleeved on the bottom end of the circular rod, the third gear is engaged with the inner wall gear surface of the gear ring, a first bevel gear is sleeved on the top end of the circular rod, a second bevel gear is sleeved on the output shaft of the second servo motor, the first bevel gear is engaged with the second bevel gear.

[0007] A connecting rod extending downward is fixedly installed at the middle position of the sleeve, a second circular plate is sleeved on the bottom of the connecting rod, a clamping groove is arranged on the bottom of the second circular plate, and the clamping groove is used for clamping a wind knife.

[0008] By adopting the above technical scheme, the first servo motor can drive the sleeve to rotate, the second servo motor can drive the first circular ring to rotate relative to the second circular ring, the bottom end of the connecting rod can freely rotate in a hemispherical surface, a multi-degree-of-freedom mounting structure is realized, and the displacement of the wind knife in the designed movement hemispherical surface has no dead angle.

[0009] In a further embodiment, a dustproof flexible sleeve is sleeved on the top of the second circular plate, a sealing ring is coaxially arranged on the bottom of the second circular ring, the top end of the dustproof flexible sleeve is fixedly connected with the inner ring of the sealing ring, the dustproof flexible sleeve is a flexible sleeve made of rubber material, and the dustproof flexible sleeve as a whole has a horn shape, and has a wrinkle structure along the axial direction of the dustproof flexible sleeve. This arrangement can play a sealing role while not affecting the free rotation of the connecting rod.

[0010] In a further embodiment, a sealing ring is arranged on the top of the bearing and the bottom of the bearing, and the sealing ring is used for sealing the gap between the outer wall of the first circular ring and the inner wall of the second circular ring.

[0011] In a further embodiment, the connecting rod comprises an outer sleeve rod and an inner rod, the top end of the outer sleeve rod is fixedly connected with the sleeve, the inner rod is slidingly installed at the inner bottom end of the outer sleeve rod, the inner rod is provided with an extension part at the bottom of the outer sleeve rod, a servo oil cylinder is fixedly installed at the inner top of the outer sleeve rod, the extension rod of the servo oil cylinder is fixedly connected with the top of the inner rod, and an O-shaped ring is arranged at the inner bottom of the outer sleeve rod.

[0012] By adopting the above technical scheme, because the inner rod can slide relative to the outer sleeve rod, the overall length direction of the connecting rod can be adjusted and controlled, so the area where the original wind knife arranged at the bottom of the connecting rod can move changes from a hemisphere to one-half or two-fifths of the spherical volume, the use of the wind knife is facilitated, the interval between the wind knife and the object can be flexibly adjusted, and the application range of the wind knife is wider. The reason why it is said that the motion track is one-half or two-fifths of the spherical volume is that the position is limited according to different gaps, and here the gap refers to the maximum gap between the connecting rod and the inner ring at the bottom of the second circular ring.

[0013] In a further embodiment, the top of the first circular plate is provided with a protective mesh cover.

[0014] In a further embodiment, the bottom of the second circular plate is provided with an infrared distance measuring sensor.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The first servo motor can drive the sleeve to rotate, and the second servo motor can drive the first circular ring to rotate relative to the second circular ring, so that the bottom end of the connecting rod can freely rotate in a hemisphere, realizing a multi-degree-of-freedom mounting structure, and the displacement of the wind knife in the designed motion hemisphere has no dead angle. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic view of the utility model;

[0018] Figure 2 is a structure schematic view for showing the connection relationship of the internal components of the first circular ring and the second circular ring.

[0019] In the figure, 1 is a first circular ring, 2 is a bearing, 3 is a second circular ring, 4 is a support block, 5 is a first circular plate, 6 is a rotating shaft, 7 is a sleeve, 8 is a first gear, 9 is a first servo motor, 10 is a second gear, 11 is a gear ring, 12 is a second servo motor, 13 is a limiting plate, 14 is a circular rod, 15 is a third gear, 16 is a first bevel gear, 17 is a second bevel gear, 18 is a connecting rod, 19 is a second circular plate, and 22 is a dustproof flexible sleeve. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below in combination with the drawings.

[0021] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the drawings attached Figure 1In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0022] Example 1: As Figures 1-2 As shown, a multi-degree-of-freedom air knife support includes a first ring 1, a bearing 2, and a second ring 3. The bearing 2 is sleeved on the outer wall of the first ring 1, and the second ring 3 is sleeved on the outer ring of the bearing 2. A plurality of support blocks 4 are evenly arranged axially on the top of the first ring 1. The same first circular plate 5 is fixedly installed on the top of the support blocks 4. A rotating shaft 6 is fixedly installed inside the first ring 1, and the axial direction of the rotating shaft 6 is perpendicular to the axis of the first ring 1. A sleeve 7 is rotatably sleeved on the middle section of the rotating shaft 6. A first gear 8 is sleeved on one end of the sleeve 7. A first servo motor 9 is fixedly installed on the top of the first circular plate 5. A second gear 10 is sleeved on the output shaft of the first servo motor 9. A clearance hole is opened on the first circular plate 5, which is used to avoid the meshing path of the first gear 8 and the second gear 10. The bottom end of the second gear 10 passes through the clearance hole and meshes with the first gear 8.

[0023] A gear ring 11 coaxial with the second ring 3 is fixedly installed on the top of the second ring 3. The inner ring of the gear ring 11 is set as a gear surface. A second servo motor 12 is fixedly installed on the top of the first circular plate 5. The second servo motor 12 and the first servo motor 9 are arranged opposite to each other on the top of the first circular plate 5. A limit plate 13 is fixedly installed on the top of the first circular plate 5. A circular hole that runs vertically through the top of the limit plate 13 is opened. A circular rod 14 coaxial with the circular hole is rotatably installed in the circular hole. A third gear 15 is sleeved on the bottom end of the circular rod 14. The third gear 15 meshes with the gear surface on the inner wall of the gear ring 11. A first bevel gear 16 is sleeved on the top end of the circular rod 14. A second bevel gear 17 is sleeved on the output shaft of the second servo motor 12. The first bevel gear 16 meshes with the second bevel gear 17.

[0024] The middle position of the sleeve 7 is fixedly provided with a downward extending connecting rod 18, the bottom of the connecting rod 18 is sleeved with a second circular plate 19, the bottom of the second circular plate 19 is provided with a clamping groove for clamping the air knife, the top of the second circular plate 19 is sleeved with a dustproof flexible sleeve 22, the dustproof flexible sleeve is a flexible sleeve made of rubber material, the bottom end of the dustproof sleeve is sleeved on the second circular plate and can rotate axially relative to the second circular plate, and the dustproof flexible sleeve is trumpet-shaped as a whole and has a pleated structure along the axial direction of the dustproof flexible sleeve, which can play a sealing role and does not affect the free rotation of the connecting rod, the bottom of the second circular ring 3 is coaxially provided with a sealing ring, the top end of the dustproof flexible sleeve 22 is fixedly connected with the inner ring of the sealing ring, the top of the bearing 2 and the bottom of the bearing 2 are provided with sealing rings, the sealing rings are used for sealing the gap between the outer wall of the first circular ring 1 and the inner wall of the second circular ring 3, the connecting rod 18 comprises an outer sleeve rod and an inner rod, the top end of the outer sleeve rod is fixedly connected with the sleeve 7, the inner rod is slidingly installed at the inner bottom end of the outer sleeve rod, the inner rod is provided with an extension portion at the bottom of the outer sleeve rod, the inner top of the outer sleeve rod is fixedly provided with a servo oil cylinder, the telescopic rod of the servo oil cylinder is fixedly connected with the top of the inner rod, the inner bottom of the outer sleeve rod is provided with an O-shaped ring, the top of the first circular plate 5 is provided with a protective mesh cover, and the bottom of the second circular plate 19 is provided with an infrared distance measuring sensor.

[0025] The first servo motor can drive the sleeve to rotate, and the second servo motor can drive the first circular ring to rotate relative to the second circular ring, so that the bottom end of the connecting rod can freely rotate in a hemispherical surface, thereby realizing a multi-degree-of-freedom mounting structure, and the displacement of the air knife in the designed movement hemispherical surface has no dead angle.

[0026] Because the inner rod can slide relative to the outer sleeve rod, the overall length direction of the connecting rod can be adjusted and controlled, so the area where the original air knife at the bottom of the connecting rod can move changes from a hemispherical surface to a ball volume of one half or a ball volume of two fifths, which is convenient for use of the air knife and can flexibly adjust the interval between the air knife and the object, so that the application range of the air knife is wider.

[0027] In the embodiments disclosed in the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, detachable connection or integral connection; "connection" can be direct connection or indirect connection through an intermediate medium. For ordinary skilled persons in the art, the specific meanings of the above terms in the embodiments disclosed in the utility model can be understood according to specific circumstances.

[0028] The specific embodiments are only an interpretation of the utility model, and are not a limitation of the utility model. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A multi-degree of freedom air knife support, characterized by: Including first circular ring (1), bearing (2) and second circular ring (3), the bearing (2) is set on the outer wall of the first circular ring (1), the second circular ring (3) is set on the outer ring of the bearing (2), the top of the first circular ring (1) is uniformly provided with a plurality of support blocks (4), the top of the support block (4) is fixedly installed with the same first circular plate (5), the inside of the first circular ring (1) is fixedly installed with the rotating shaft (6), and the axis of the rotating shaft (6) is perpendicular to the axis of the first circular ring (1), the middle segment of the rotating shaft (6) is rotatably sleeved with the sleeve (7), one end of the sleeve (7) is sleeved with the first gear (8), the top of the first circular plate (5) is fixedly installed with the first servo motor (9), the output shaft of the first servo motor (9) is sleeved with the second gear (10), the first circular plate (5) is provided with an upper and lower through avoiding hole, the avoiding hole is used for avoiding the meshing path of the first gear (8) and the second gear (10), the bottom end of the second gear (10) is engaged with the first gear (8) through the avoiding hole. The top of the second circular ring (3) is fixedly installed with the gear ring (11) coaxial with the second circular ring (3), the inner ring of the gear ring (11) is provided with a gear surface, the top of the first circular plate (5) is fixedly installed with the second servo motor (12), and the second servo motor (12) is arranged on the top of the first circular plate (5) opposite to the first servo motor (9), the top of the first circular plate (5) is fixedly installed with the limiting plate (13), the top of the limiting plate (13) is provided with an upper and lower through circular hole, the circular hole is rotatably installed with the circular rod (14) coaxially arranged in the circular hole, the bottom end of the circular rod (14) is sleeved with the third gear (15), the third gear (15) is engaged with the inner wall gear surface of the gear ring (11), the top end of the circular rod (14) is sleeved with the first bevel gear (16), the output shaft of the second servo motor (12) is sleeved with the second bevel gear (17), and the first bevel gear (16) is engaged with the second bevel gear (17). The middle position of the sleeve (7) is fixedly installed with the downward extending connecting rod (18), the bottom of the connecting rod (18) is sleeved with the second circular plate (19), the bottom of the second circular plate (19) is provided with a clamping groove, and the clamping groove is used for clamping the air knife.

2. The multi-degree of freedom air knife support of claim 1, wherein: The top of the second circular plate (19) is sleeved with the dustproof flexible sleeve (22), the bottom of the second circular ring (3) is coaxially provided with a sealing circular ring, and the top end of the dustproof flexible sleeve (22) is fixedly connected with the inner ring of the sealing circular ring.

3. The multi-degree of freedom air knife support of claim 1, wherein: The top of the bearing (2) and the bottom of the bearing (2) are provided with sealing rings, and the sealing rings are used for sealing the gap between the outer wall of the first circular ring (1) and the inner wall of the second circular ring (3).

4. The multi-degree of freedom air knife support of claim 1, wherein: The connecting rod (18) comprises an outer sleeve rod and an inner rod, the top end of the outer sleeve rod is fixedly connected with the sleeve (7), the inner rod is slidingly installed at the inner bottom end of the outer sleeve rod, the inner rod is provided with an extension at the bottom of the outer sleeve rod, a servo oil cylinder is fixedly installed at the inner top of the outer sleeve rod, the telescopic rod of the servo oil cylinder is fixedly connected with the top of the inner rod, and the inner bottom of the outer sleeve rod is provided with an O-shaped ring.

5. The multi-degree of freedom air knife support of claim 1, wherein: The top of the first circular plate (5) is provided with a protective mesh cover.

6. The multi-degree of freedom air knife support of claim 1, wherein: The bottom of the second circular plate (19) is provided with an infrared distance measuring sensor.

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