Dustproof and waterproof horizontal rotating device

Abstract

The utility model discloses a dustproof and waterproof horizontal rotating device, and belongs to the technical field of rotating devices. Comprising an upper shell, a lower shell, a flange rotating shaft, a thrust bearing, a framework oil seal, a transmission gear and a fastening nut, an inner mounting seat is arranged in the middle of the bottom of the upper shell, an outer mounting seat is arranged around the outer side of the inner mounting seat, an upper bearing seat is formed upwards in the middle of the top face of the lower shell, and a lower bearing seat is formed downwards in the middle of the top face of the lower shell. The upper bearing seat and the lower bearing seat are communicated through a bearing through hole formed in the top face of the lower shell, the thrust bearings are arranged in the upper bearing seat and the lower bearing seat respectively, the upper bearing seat extends into the inner mounting seat, and the framework oil seal is arranged at the bottom of the inner wall of the inner mounting seat and is in sealing fit with the outer side wall of the upper bearing seat. The flange is fixedly connected with the top face of the upper shell, and the flange rotating shaft penetrates through the bearing through hole from top to bottom. The device has the advantages of effectively preventing dust and moisture from damaging precise parts in the device and prolonging the service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotating devices, and particularly relates to a horizontal rotating device with dust and water protection. Background Art

[0002] The application of horizontal rotation is very extensive, covering various fields from daily life to scientific research. Common examples include various lamps including searchlights, cameras, action cameras, etc. In some application scenarios, they need to rotate horizontally. With the development of technology, existing horizontal rotation devices can already achieve 0-360° rotation.

[0003] At present, the various indicators of the usage environment of horizontal rotation devices mainly target outdoor usage. The outdoor environment has large temperature changes, is vulnerable to rain or moisture erosion, and often faces the intrusion of dust and moisture, which may cause damage to the precision components inside the device, affecting the normal operation and service life of the equipment.

[0004] In view of the above existing technology, it is necessary to make a reasonable and feasible improvement to the structure of the horizontal rotation device. The applicant has made a beneficial design, and the technical solution to be introduced below was generated under this background. Content of the Utility Model

[0005] The purpose of the utility model is to provide a horizontal rotation device with dust and water protection, which can effectively prevent dust and moisture from invading the precision components inside the device and extend the service life.

[0006] The object of the present utility model is achieved in the following way. A dust-proof and waterproof horizontal rotation device includes an upper housing, a lower housing, a flange rotating shaft, a thrust bearing, a skeleton oil seal, a transmission gear and a fastening nut. The upper housing is located above the lower housing. The flange rotating shaft has a flange at the upper end, and a flange boss is formed at the bottom of the flange. An inner mounting seat is provided in the middle of the bottom of the upper housing, and an outer mounting seat is arranged around the outside of the inner mounting seat. The outer mounting seat and the inner mounting seat are arranged at intervals. The lower housing has a housing cavity with a downward opening. An upper bearing seat is formed upward in the middle of the top surface of the lower housing, and a lower bearing seat is formed downward. The upper bearing seat and the lower bearing seat are communicated through a bearing through hole opened on the top surface of the lower housing. There are a pair of thrust bearings, which are respectively arranged in the upper bearing seat and the lower bearing seat. The flange boss is fitted and installed in the inner ring of the thrust bearing located in the upper bearing seat. The upper bearing seat extends into the inner mounting seat. The skeleton oil seal is arranged at the bottom of the inner wall of the inner mounting seat and is in sealing cooperation with the outer side wall of the upper bearing seat. The flange is fixedly connected to the top surface of the upper housing. The flange rotating shaft passes through the bearing through hole from top to bottom. A threaded section is formed at the bottom end of the flange rotating shaft. The transmission gear is located below the lower bearing seat and is connected and installed with the thrust bearing located in the lower bearing seat. A rotating shaft connection hole is opened at the central position of the transmission gear. The flange rotating shaft passes through the rotating shaft connection hole and is in transmission connection with the transmission gear. The threaded section of the flange rotating shaft extends below the transmission gear. The fastening nut is screwed with the threaded section and is fixed to the bottom of the transmission gear. A stepped ring is formed on the outer side wall of the lower housing corresponding to the outer mounting seat. When the fastening nut is assembled, the outer mounting seat is arranged around the outside of the stepped ring at intervals.

[0007] In a specific embodiment of the present utility model, the top surface of the lower housing is a slope that slopes downward from the middle to the periphery.

[0008] In another specific embodiment of the present utility model, the height of the outer mounting seat is greater than that of the inner mounting seat.

[0009] In still another specific embodiment of the present utility model, a limiting step is formed at the bottom of the inner mounting seat, and the skeleton oil seal abuts against the limiting step.

[0010] In yet another specific embodiment of the present utility model, the flange rotating shaft adopts a hollow structure for routing signal transmission cables.

[0011] In still another specific embodiment of the present utility model, a limiting plane is formed on the outer wall of the lower section of the flange rotating shaft, and a limiting surface is formed on the inner wall of the rotating shaft connection hole of the transmission gear. The limiting plane and the limiting surface are in abutting cooperation to limit the flange rotating shaft.

[0012] In a further specific embodiment of the present utility model, an annular limiting groove is formed on the upper surface of the transmission gear, and the bottom of the thrust bearing located in the lower bearing seat is adaptively installed with this annular limiting groove.

[0013] In a yet further specific embodiment of the present utility model, the skeleton oil seal is a TC rubber oil seal and has a stainless steel skeleton inside.

[0014] Due to the adoption of the above structure, compared with the prior art, the present utility model has the following beneficial effects: It has a high level of dust and water protection effect, and will not be interfered by the external environment during use. Dust and moisture cannot easily enter the device interior to damage the precision components, thus being able to extend the service life; The excellent dust and water protection performance can ensure that the device can work normally in various harsh environments, improving the reliability and stability of the device; The structure is simple and reasonable, easy to manufacture and maintain, reducing the production cost and use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] In the figure: 1. Upper housing, 11. Inner mounting seat, 111. Limiting step, 12. Outer mounting seat; 2. Lower housing, 21. Upper bearing seat, 22. Lower bearing seat, 23. Bearing through hole, 24. Step ring; 3. Flange rotating shaft, 31. Flange, 311. Flange boss, 32. Threaded section, 33. Limiting plane; 4. Thrust bearing; 5. Skeleton oil seal; 6. Transmission gear, 61. Shaft connection hole, 611. Limiting surface, 62. Annular limiting groove; 7. Fastening nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings. However, the description of the embodiments is not a limitation of the technical solution. Any change in form rather than substance based on the concept of the present utility model should be regarded as the protection scope of the present utility model.

[0018] In the following description, any concepts related to the directionality (or orientation) of up, down, left, right, front, and back are with respect to the position state of the figure being described, aiming to facilitate public understanding. Therefore, it cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0019] See Figure 1 , the present utility model relates to a dust and water protected horizontal rotating device, including an upper housing 1, a lower housing 2, a flange rotating shaft 3, a thrust bearing 4, a skeleton oil seal 5, a transmission gear 6, and a fastening nut 7.

[0020] The described lower housing 2 serves as the basic support part of the entire device and is made of a high-strength and corrosion-resistant alloy material. Its surface has been specially treated, not only having good wear resistance but also being able to effectively resist the erosion of the external environment. The described lower housing 2 has a housing cavity with an opening downward, providing a stable installation space for the internal components. The upper housing 1 is located above the lower housing 2 and is also made of a sturdy and durable material. The internal structure of the upper housing 1 has been carefully designed to perfectly fit with the lower housing 2, preventing the intrusion of dust and moisture and ensuring the stability of the device during operation. The upper housing 1 is provided with an inner mounting seat 11 in the middle of the bottom, and an outer mounting seat 12 is provided around the outside of the inner mounting seat 11. The outer mounting seat 12 and the inner mounting seat 11 are spaced apart. The height of the outer mounting seat 12 is greater than that of the inner mounting seat 11, which can effectively block the impact of water flow from the side and has a certain waterproof performance. When encountering rain or moisture, it can effectively block the moisture outside.

[0021] The described flange rotating shaft 3 is an important rotating component of the rotating device and can achieve a 360° horizontal rotation to meet the horizontal rotation requirements. The flange rotating shaft 3 is processed from high-quality steel and has extremely high strength and hardness. The surface of the flange rotating shaft 3 has been finely polished and specially treated, reducing the friction coefficient and making the rotation smoother. The described flange rotating shaft 3 is of a hollow design and can be used for the wiring of signal transmission cables to connect the electrical signal transmission required by the upper housing 1.

[0022] The described lower housing 2 forms an upper bearing seat 21 upward in the middle of the top surface and a lower bearing seat 22 downward. The upper bearing seat 21 and the lower bearing seat 22 are connected through a bearing through hole 23 opened on the top surface of the lower housing 2. There are a pair of thrust bearings 4, which are respectively arranged in the upper bearing seat 21 and the lower bearing seat 22. A pair of thrust bearings 4 can bear axial loads and provide stable support for the rotation of the rotating device. The thrust bearings 4 are made of high-quality materials, have good wear resistance and load-bearing capacity, and can ensure the stable performance of the rotating device during long-term use.

[0023] The flange rotating shaft 3 has a flange 31 at the upper end, and a flange boss 311 is formed at the bottom of the flange 31. The flange boss 311 is fitted and installed in the inner ring of the thrust bearing 4 located in the upper bearing seat 21. The upper bearing seat 21 extends into the inner mounting seat 11. The skeleton oil seal 5 is arranged at the bottom of the inner wall of the inner mounting seat 11 and is in sealing cooperation with the outer side wall of the upper bearing seat 21, playing a key role in dust and water prevention, and protecting the internal precision components from damage. The skeleton oil seal 5 is a TC rubber oil seal, which has good elasticity and sealing performance, and has a stainless steel skeleton inside, thereby improving the corrosion resistance of the oil seal and increasing the service life. Further, the inner mounting seat 11 forms a limiting step 111 at the bottom, and the skeleton oil seal 5 abuts against the limiting step 111. The height of the upper bearing seat 21 is increased and it extends into the inner mounting seat 11, which can effectively prevent water vapor from entering the inside of the housing. The flange 31 is fixedly connected to the top surface of the upper housing 1 by screws. The flange rotating shaft 3 passes through the bearing through hole 23 from top to bottom. The flange rotating shaft 3 forms a threaded section 32 at the bottom end. The transmission gear 6 is located below the lower bearing seat 22. A ring-shaped limiting groove 62 is formed on the upper surface of the transmission gear 6. The bottom of the thrust bearing 4 located in the lower bearing seat 22 is fitted and installed with the ring-shaped limiting groove 62. A shaft connection hole 61 is opened at the center position of the transmission gear 6. The flange rotating shaft 3 passes through the shaft connection hole 61 and is in transmission connection with the transmission gear 6. Further, a limiting plane 33 is formed on the outer wall of the lower section of the flange rotating shaft 3, and a limiting surface 611 is formed on the inner wall of the shaft connection hole 61 of the transmission gear 6. The limiting plane 33 is in abutting cooperation with the limiting surface 611 to limit the flange rotating shaft 3. The transmission gear 6 is responsible for transmitting power to achieve precise control of the rotating device. The transmission gear 6 is made of a high-strength alloy material, and the tooth profile of the gear is precision machined, which can operate stably under different working conditions to ensure the accuracy and reliability of power transmission. The threaded section 32 of the flange rotating shaft 3 extends below the transmission gear 6. The fastening nut 7 is screwed with the threaded section 32 and is fixed to the bottom of the transmission gear 6 by screws to ensure that the transmission gear 6 can drive the flange rotating shaft 3 to rotate horizontally.

[0024] Further, a step ring 24 is formed on the outer side wall of the lower housing 2 corresponding to the outer mounting seat 12. When the fastening nut 7 is assembled, the outer mounting seat 12 is spaced around the outside of the step ring 24. The lower housing 2 is designed in a stepped shape and cooperates with the upper housing 1 to prevent a large amount of dust and water from entering the device.

[0025] Further, the top surface of the lower housing 2 is a slope that slopes downward from the middle to the surrounding, which can guide the flowing water in and drain the accumulated water at the top.

[0026] This utility model has good dust and water protection performance, which can ensure that the device can work normally in various harsh environments, improving the reliability and stability of the device.

Claims

1. A horizontal rotating device with dust and water protection, characterized in that: It includes an upper housing (1), a lower housing (2), a flange rotating shaft (3), a thrust bearing (4), a skeleton oil seal (5), a transmission gear (6), and a fastening nut (7). The upper housing (1) is located above the lower housing (2). The flange rotating shaft (3) has a flange (31) at its upper end, and a flange boss (311) is formed at the bottom of the flange (31). An inner mounting seat (11) is provided in the middle of the bottom of the upper housing (1), and an outer mounting seat (12) is arranged around the outside of the inner mounting seat (11). The outer mounting seat (12) is spaced from the inner mounting seat (11). The lower housing (2) has a housing cavity with a downward opening. An upper bearing seat (21) is formed upward in the middle of the top surface of the lower housing (2), and a lower bearing seat (22) is formed downward. The upper bearing seat (21) and the lower bearing seat (22) are communicated through a bearing through hole (23) opened on the top surface of the lower housing (2). There are a pair of thrust bearings (4), which are respectively arranged in the upper bearing seat (21) and the lower bearing seat (22). The flange boss (311) is adaptively installed in the inner ring of the thrust bearing (4) located in the upper bearing seat (21). The upper bearing seat (21) extends into the inner mounting seat (11). The skeleton oil seal (5) is arranged at the bottom of the inner wall of the inner mounting seat (11) and is in sealing cooperation with the outer side wall of the upper bearing seat (21). The flange (31) is fixedly connected to the top surface of the upper housing (1). The flange rotating shaft (3) passes through the bearing through hole (23) from top to bottom. A threaded section (32) is formed at the bottom end of the flange rotating shaft (3). The transmission gear (6) is located below the lower bearing seat (22) and is connected and installed with the thrust bearing (4) located in the lower bearing seat (22). A rotating shaft connection hole (61) is opened at the central position of the transmission gear (6). The flange rotating shaft (3) passes through the rotating shaft connection hole (61) and is in transmission connection with the transmission gear (6). The threaded section (32) of the flange rotating shaft (3) extends below the transmission gear (6). The fastening nut (7) is screwed with the threaded section (32) and is fixed to the bottom of the transmission gear (6). A step ring (24) is formed on the outer side wall of the lower housing (2) corresponding to the outer mounting seat (12). When the fastening nut (7) is assembled, the outer mounting seat (12) is spaced around the outside of the step ring (24).

2. The horizontal rotation device with dust and water protection according to claim 1, characterized in that: The top surface of the lower housing (2) is a slope that slopes downward from the middle to the periphery.

3. The horizontal rotation device with dust and water protection according to claim 1, characterized in that: The height of the outer mounting seat (12) is greater than that of the inner mounting seat (11).

4. A dust-proof and waterproof horizontal rotation device according to claim 1, characterized in that: The inner mounting seat (11) forms a limiting step (111) at the bottom, and the skeleton oil seal (5) abuts within the limiting step (111).

5. A dust-proof and waterproof horizontal rotation device according to claim 1, characterized in that: The flange rotating shaft (3) adopts a hollow structure for routing signal transmission cables.

6. The horizontal rotating device with dust and water protection according to claim 1, characterized in that: The flange rotating shaft (3) forms a limiting plane (33) on the outer wall of the lower section, and the transmission gear (6) forms a limiting surface (611) on the inner wall of the rotating shaft connection hole (61). The limiting plane (33) is in abutting fit with the limiting surface (611) to limit the flange rotating shaft (3).

7. A dust-proof and waterproof horizontal rotation device according to claim 1, characterized in that: The transmission gear (6) is formed with an annular limiting groove (62) on the upper surface, and the bottom of the thrust bearing (4) located in the lower bearing seat (22) is adaptively installed with the annular limiting groove (62).

8. The horizontal rotation device with dust and water protection according to claim 1, characterized in that: The skeleton oil seal (5) is a TC rubber oil seal and has a stainless steel skeleton inside.

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