Rotating shaft convenient to combine

Abstract

The utility model relates to a rotating shaft convenient to combine in the field of rotating shafts, which comprises a shaft core and a fixing sleeve, a movable frame is sleeved on the surface of the shaft core, the movable frame is C-shaped, the inner wall of the movable frame clamps the surface of the shaft core, an opening on one side of the movable frame is provided with a transmission plate, the transmission plate and the movable frame are integrally formed, and a movable cavity and a positioning groove are arranged in the fixing sleeve. The positioning groove is located in the side wall of the movable cavity, through holes are formed in the two ends of the movable cavity, the shaft core and the movable frame are arranged in the movable cavity, spline parts at the two ends of the shaft core penetrate through the through holes and extend to the outer side of the fixing sleeve, and the transmission plate is inserted into the positioning groove to be fixedly connected. A movable gap exists between the surface of the movable frame and the inner wall of the movable cavity, lubricating grease is smeared in the movable cavity, the lubricating grease is evenly smeared between the shaft core and the movable frame when the shaft core rotates, the number of parts of the rotating shaft is remarkably reduced, the assembling process is simpler, more convenient and faster, and the production cost and the assembling difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the field of rotating shafts, in particular to a rotating shaft which is easy to assemble. Background Art

[0002] In the field of mechanics, a shaft is a necessary part for connecting the main parts of a product, and is used to withstand both bending moments and torques during rotation. In mechanical equipment, a shaft is often used to transfer the torque generated by a power source (such as a motor or engine) to the working part, driving it to rotate. This is one of the most basic uses of a shaft. It is usually installed on an appliance and can rotate. It is a common component in mechanical equipment. For example, in electronic devices such as mobile phones, the shaft is often used to connect the screen and the body to achieve flipping or folding of the screen. In addition, there are many types such as disc-type damping shafts, straight-line shafts, heavy-duty hinge shafts, etc., which are suitable for different mechanical equipment and application scenarios.

[0003] The rotating shaft usually includes a fixed seat and a movable frame. The movable frame is rotatably connected to the fixed seat through a rotating assembly. The rotating assembly includes a shaft core, a nut and a gasket. The shaft core passes through the movable frame and the fixed seat. The gasket presses the movable frame through the nut. The damping effect is achieved through friction between the movable frame and the fixed seat.

[0004] In the existing rotating shaft assembly, multiple gaskets are usually set to ensure the damping force, resulting in a large number of overall parts of the shaft. The assembly process is very complicated and tedious, and the lubricating grease is often exposed to the air, which is prone to drying and falling or mixing with dust, resulting in a decrease in the lubrication effect. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technical solutions, the utility model provides a rotating shaft that is easy to assemble and can effectively solve the technical problems of a large number of parts and a very complicated and tedious assembly process.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The movable frame is provided with a movable frame, and the movable frame is in a C-shape. The inner wall of the movable frame clamps the surface of the movable frame. A transmission plate is provided on one side of the movable frame. The transmission plate and the movable frame are integrally formed. A movable cavity and a positioning groove are provided in the fixed sleeve. The positioning groove is located on the side wall of the movable cavity. Through holes are provided at both ends of the movable cavity. The shaft core and the movable frame are arranged in the movable cavity. The spline portions at both ends of the shaft core extend through the through hole to the outer side of the fixed sleeve. The transmission plate is inserted into the positioning groove and is fixedly connected, so that when the fixed sleeve is flipped, the movable frame can be driven to rotate around the surface of the shaft core. There is a movable gap between the surface of the movable frame and the inner wall of the movable cavity. Lubricating grease is applied in the movable cavity. When the shaft core rotates, the lubricating grease can be evenly applied between the shaft core and the movable frame.

[0008] Furthermore, the fixed sleeve is composed of a left sleeve and a right sleeve, and a movable cavity, a positioning groove and a through hole are provided in the left sleeve and the right sleeve. When the movable frame is sleeved on the surface of the shaft core, the left sleeve and the right sleeve respectively fit the shaft core and the movable frame from both ends of the shaft core.

[0009] Furthermore, a sealing ring is provided on the inner wall of the through hole, and the sealing ring can fill the gap between the through hole and the shaft core.

[0010] Furthermore, a sealing ring is provided between the left sleeve and the right sleeve, and sealing grooves are provided at opposite ends of the left sleeve and the right sleeve, and the sealing ring is provided in the sealing groove.

[0011] Furthermore, a positioning notch is provided on the transmission plate, and a positioning screw hole is provided on the fixing sleeve, which is connected to the positioning groove. When the transmission plate is inserted into the positioning groove, the positioning notch is aligned with the positioning screw hole, and the bolts are screwed into the positioning screw hole and the positioning notch in sequence to fix the fixing sleeve to the movable frame.

[0012] Furthermore, a damping ring is provided on the inner wall of the through hole, and the inner wall of the damping ring presses the surface of the shaft core.

[0013] Compared with the prior art, the beneficial effects of the present invention are: by adopting a combined design of a shaft core, a fixed sleeve and a movable frame, the traditional structure of multiple gaskets is replaced, the number of parts of the rotating shaft is significantly reduced, the assembly process is simpler and faster, and the production cost and assembly difficulty are reduced. The lubricating grease is arranged in the movable cavity, which avoids the lubricating grease from being directly exposed to the air, reduces the risk of drying and falling or mixing with dust, thereby extending the service life of the rotating shaft. When the shaft core rotates, the lubricating grease can be evenly applied between the shaft core and the movable frame to ensure a good lubrication effect. The movable frame is designed in a "C" shape, and its inner wall clamps the surface of the shaft core so that it has a damping effect when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is an exploded view of the structure of the present utility model;

[0016] Figure 3 This is the main sectional view of the utility model;

[0017] Figure 4 It is a right sectional view of the utility model;

[0018] Numbers in the figure: 1-shaft core, 101-spline part, 2-fixed sleeve, 201-movable cavity, 202-positioning groove, 203-through hole, 3-movable frame, 4-transmission plate, 401-positioning notch, 5-left sleeve, 6-right sleeve, 7-positioning screw hole, 8-sealing ring, 9-sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The following combination Figures 1-4 A conveniently combined rotating shaft of the utility model is described in detail:

[0021] A rotating shaft with convenient assembly, comprising a shaft core 1 and a fixed sleeve 2, the shaft core 1 and the fixed sleeve 2 are rotatably connected, the fixed sleeve 2 can be flipped around the shaft core 1, both ends of the shaft core 1 are provided with a spline portion 101 for connecting with the movable part of the product, the fixed sleeve 2 is used to connect with the fixed part of the product, the surface of the shaft core 1 is sleeved with a movable frame 3, the movable frame 3 is "C" shaped, the inner wall of the movable frame 3 clamps the surface of the shaft core 1, one side opening of the movable frame 3 is provided with a transmission plate 4, the transmission plate 4 and the movable frame 3 are integrally formed, the movable frame 3 and the transmission plate 4 are both made of spring steel, and a movable cavity 201 and a positioning groove 2 are provided in the fixed sleeve 2 02, the positioning groove 202 is located on the side wall of the movable cavity 201, and through holes 203 are provided at both ends of the movable cavity 201. The shaft core 1 and the movable frame 3 are arranged in the movable cavity 201, and the spline parts 101 at both ends of the shaft core 1 extend through the through holes 203 to the outside of the fixed sleeve 2. The transmission plate 4 is inserted into the positioning groove 202 and fixedly connected, so that when the fixed sleeve 2 is flipped, it can drive the movable frame 3 to rotate around the surface of the shaft core 1. There is a movable gap between the surface of the movable frame 3 and the inner wall of the movable cavity 201. Lubricating grease is applied in the movable cavity 201. When the shaft core 1 rotates, the lubricating grease can be evenly applied between the shaft core 1 and the movable frame 3.

[0022] The present embodiment provides a rotating shaft with easy assembly. By adopting a combination design of a shaft core 1, a fixed sleeve 2 and a movable frame 3, the traditional structure of multiple gaskets is replaced, the number of parts of the rotating shaft is significantly reduced, the assembly process is simpler and faster, and the production cost and assembly difficulty are reduced. The lubricating grease is arranged in the movable cavity 201, which avoids the lubricating grease from being directly exposed to the air, reduces the risk of drying and falling or mixing with dust, and thus extends the service life of the rotating shaft. When the shaft core 1 rotates, the lubricating grease can be evenly applied between the shaft core 1 and the movable frame 3 to ensure a good lubrication effect. The movable frame 3 is designed in a "C" shape, and its inner wall clamps the surface of the shaft core 1 so that it has a damping effect when it rotates.

[0023] Furthermore, the fixed sleeve 2 is composed of a left sleeve 5 and a right sleeve 6, each of which is provided with a movable cavity 201, a positioning groove 202, and a through hole 203. After the movable frame 3 is sleeved on the surface of the shaft core 1, the left sleeve 5 and the right sleeve 6 are respectively sleeved on the shaft core 1 and the movable frame 3 from both ends of the shaft core 1, simplifying the assembly steps and improving assembly efficiency. At the same time, this design also facilitates subsequent disassembly and maintenance work. The transmission plate 4 is provided with a positioning notch 401, and the fixed sleeve 2 is provided with a positioning screw hole 7, which is connected to the positioning groove 202. When the transmission plate 4 is inserted into the positioning groove 202, the positioning notch 401 is aligned with the positioning screw hole 7. Bolts are screwed into the positioning screw hole 7 and the positioning notch 401 in sequence, thereby fixing the fixed sleeve 2 and the movable frame 3. The structure is simple, easy to operate, and the connection is firm, stable and reliable, which can effectively ensure the stability and accuracy of the rotating shaft during rotation.

[0024] Furthermore, a sealing ring 8 is provided on the inner wall of the through hole 203. This seal fills the gap between the through hole 203 and the shaft core 1, preventing the leakage of lubricating grease and the ingress of external dust and impurities, thereby ensuring a clean interior environment within the shaft and maintaining a long-lasting lubricating effect. This helps to increase the shaft's service life and performance stability. A sealing ring 9 is provided between the left and right sleeves 5 and 6. Sealing grooves are provided at the opposing ends of the left and right sleeves 5 and 6, and the sealing ring 9 is disposed within the grooves, enhancing the sealing performance of the fixed sleeve 2. This design effectively prevents lubricating grease from leaking through the gaps in the fixed sleeve 2, while also preventing the ingress of external moisture and impurities, thereby protecting the internal components of the shaft from corrosion and damage.

[0025] Furthermore, a damping ring is provided on the inner wall of the through hole 203. The inner wall of the damping ring presses against the surface of the shaft core 1, increasing the damping force during the shaft's rotation. This allows the shaft to flip or rotate more smoothly and slowly, avoiding the shock and vibration caused by sudden acceleration or deceleration. This design helps improve the comfort and safety of the shaft while also extending its service life.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A conveniently assembled rotating shaft comprising a shaft core and a fixed sleeve, wherein the shaft core and the fixed sleeve are rotatably connected and the fixed sleeve can be turned around the shaft core. Both ends of the shaft core are provided with spline portions for connecting with the movable part of the product, and the fixed sleeve is used to connect with the fixed part of the product, characterized in that: The surface of the shaft core is sleeved with a movable frame, which is in a "C" shape. The inner wall of the movable frame clamps the surface of the shaft core. A transmission plate is provided on one side opening of the movable frame. The transmission plate and the movable frame are integrally formed. A movable cavity and a positioning groove are provided in the fixed sleeve. The positioning groove is located on the side wall of the movable cavity. Through holes are provided at both ends of the movable cavity. The shaft core and the movable frame are arranged in the movable cavity. The spline parts at both ends of the shaft core extend through the through holes to the outside of the fixed sleeve. The transmission plate is inserted into the positioning groove and fixedly connected, so that when the fixed sleeve is flipped, the movable frame can be driven to rotate around the surface of the shaft core. There is a movable gap between the surface of the movable frame and the inner wall of the movable cavity. Lubricating grease is applied in the movable cavity. When the shaft core rotates, the lubricating grease can be evenly applied between the shaft core and the movable frame.

2. The easily assembled rotating shaft according to claim 1, characterized in that: The fixed sleeve is composed of a left sleeve and a right sleeve, and a movable cavity, a positioning groove and a through hole are provided in the left sleeve and the right sleeve. When the movable frame is sleeved on the surface of the shaft core, the left sleeve and the right sleeve respectively fit the shaft core and the movable frame from both ends of the shaft core.

3. The easily assembled rotating shaft according to claim 2, characterized in that: A sealing ring is provided on the inner wall of the through hole, and the sealing ring can fill the gap between the through hole and the shaft core.

4. The easily assembled rotating shaft according to claim 2, characterized in that: A sealing ring is provided between the left sleeve and the right sleeve, and a sealing groove is provided at the opposite end of the left sleeve and the right sleeve, and the sealing ring is provided in the sealing groove.

5. The easily assembled rotating shaft according to any one of claims 1 to 4, characterized in that: The transmission plate is provided with a positioning notch, and the fixing sleeve is provided with a positioning screw hole, which is connected to the positioning groove. When the transmission plate is inserted into the positioning groove, the positioning notch is aligned with the positioning screw hole, and the bolts are screwed into the positioning screw hole and the positioning notch in sequence to fix the fixing sleeve to the movable frame.

6. The easily assembled rotating shaft according to any one of claims 1 to 3, characterized in that: The inner wall of the through hole is provided with a damping ring, and the inner wall of the damping ring presses the surface of the shaft core.

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