Carbon fiber composite transmission shaft

Abstract

The utility model relates to the field of transmission shafts, and discloses a carbon fiber composite transmission shaft which comprises a connecting column, the inner wall of the connecting column is rotationally connected with a carbon fiber composite transmission shaft body, and the two ends of the outer wall of the carbon fiber composite transmission shaft body are rotationally connected with connecting discs. A filling block is fixedly connected to the connecting end of the connecting disc and the carbon fiber composite transmission shaft body, a lubricating mechanism is arranged on the outer wall of the filling block and comprises a connecting pipe A, the connecting pipe A is fixedly connected to the outer wall of the filling block, and a connecting pipe B is fixedly connected to the connecting end of the connecting pipe A; the top of the connecting pipe B is fixedly connected with a connecting box, and the outer wall of the connecting box is fixedly connected with an oil storage pipe. According to the utility model, through a lubricating system consisting of the connecting pipe A, the connecting pipe B and the connecting box, lubricating oil can be accurately conveyed to a part needing to be lubricated, so that friction and abrasion are reduced, and the service life of the transmission shaft is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of drive shafts, and in particular to a carbon fiber composite drive shaft. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy and is a core power component in automated equipment. Electric motors typically transmit power to actuators via couplings and drive shafts, thereby enabling the actuators to move.

[0003] Carbon fiber composites possess high thermal conductivity and a low coefficient of thermal expansion, enabling them to dissipate heat effectively during operation and exhibiting good dimensional stability under temperature variations. This helps maintain the normal operating clearance and accuracy of the drive shaft, preventing transmission failures caused by thermal deformation.

[0004] However, in actual use, lack of lubrication at the connection points will deteriorate the working conditions of the components, easily causing fatigue cracks, surface peeling and other damage. If these damages are not detected and dealt with in time, they may gradually expand and eventually lead to drive shaft breakage or other serious failures, affecting the normal operation of the equipment. Therefore, a carbon fiber composite drive shaft was developed to address the above-mentioned problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a carbon fiber composite drive shaft, which aims to solve the problem in the prior art that "lack of lubrication at the connection point will deteriorate the working conditions of the components and easily cause fatigue cracks, surface peeling and other damages".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a carbon fiber composite drive shaft, comprising a connecting column, a carbon fiber composite drive shaft body rotatably connected to the inner wall of the connecting column, connecting discs rotatably connected to both ends of the outer wall of the carbon fiber composite drive shaft body, a filling block fixedly connected to the outer wall of the connecting discs, a through-hole and slidably connected top of the carbon fiber composite drive shaft body and the filling block, a lubrication mechanism provided on the outer wall of the filling block, the lubrication mechanism comprising a connecting pipe A, a connecting pipe A fixedly connected to the outer wall of the filling block, a connecting pipe B fixedly connected to the connecting end of the connecting pipe A, a connecting box fixedly connected to the top of the connecting pipe B, an oil storage pipe fixedly connected to the outer wall of the connecting box, a spring fixedly connected to the bottom of the inner wall of the connecting pipe B, a sealing plug fixedly connected to the top of the spring, and an inner connecting pipe rotatably connected to the top of the sealing plug.

[0007] As a further description of the above technical solution: a rotating shaft is fixedly connected to the top of the connecting box, a rotating rod is rotatably connected to the inner wall of the rotating shaft, and the bottom of the rotating rod is connected to the sealing plug through an inner connecting tube.

[0008] As a further description of the above technical solution: there are three sets of connection boxes, and the three sets of connection boxes are symmetrically arranged at equal intervals on the oil storage pipe. The outer wall of the second set of connection boxes is fixedly connected to an oil inlet pipe.

[0009] As a further description of the above technical solution: a rectangular groove is provided at the top of the rotating rod, and a rectangular limiting block is fixedly connected to the top of the rotating rod.

[0010] As a further description of the above technical solution: the connecting pipe A and the connecting pipe B are connected in communication, and the outer wall of the sealing plug is slidably connected to the inner wall of the connecting pipe B.

[0011] As a further description of the above technical solution: the outer wall of the sealing plug is located at the connection end between the connecting pipe A and the connecting pipe B.

[0012] As a further description of the above technical solution: the oil storage pipe, the connecting box, and the connecting pipe B are all connected, and the outer wall of the rotating rod is slidably connected to a connecting plate.

[0013] As a further description of the above technical solution: the top of the inner connecting tube is fixedly connected to the bottom of the rotating rod, and a sealing gasket is fixedly connected to the connection end of the inner connecting tube and the connecting box.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the lubrication system composed of connecting pipe A, connecting pipe B and connecting box can accurately deliver lubricating oil to the parts that need lubrication, reduce friction and wear, and extend the service life of the drive shaft.

[0016] 2. In this utility model, by lifting the rotating rod or operating the connecting plate, the user can manually control the flow of lubricating oil to achieve precise lubrication and avoid waste of lubricating oil. The three sets of connecting boxes are symmetrically arranged at equal intervals, which can lubricate multiple lubrication points at the same time and improve lubrication efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a carbon fiber composite drive shaft proposed in this utility model;

[0018] Figure 2 This is a side view of a carbon fiber composite drive shaft proposed in this utility model.

[0019] Figure 3 This is a side view of the lubrication mechanism for a carbon fiber composite drive shaft proposed in this utility model.

[0020] Figure 4 This is a cross-sectional schematic diagram of the lubrication mechanism for a carbon fiber composite drive shaft proposed in this utility model.

[0021] Figure 5 This utility model proposes a carbon fiber composite drive shaft. Figure 1 A schematic diagram of the enlarged structure A in the diagram;

[0022] Figure 6 This is a partial internal cross-sectional view of the connecting pipe B of the carbon fiber composite drive shaft proposed in this utility model.

[0023] Legend:

[0024] 1. Connecting column; 2. Carbon fiber composite drive shaft; 3. Connecting disc; 4. Filling block; 5. Lubrication mechanism; 511. Connecting pipe A; 512. Connecting pipe B; 513. Oil reservoir pipe; 514. Connecting box; 515. Oil inlet pipe; 517. Rotating shaft; 518. Rotating rod; 519. Connecting plate; 5111. Inner connecting pipe; 5112. Sealing plug; 5113. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 3 , Figure 4This utility model provides an embodiment of a carbon fiber composite drive shaft, including a connecting column 1, which serves as the main support structure for the drive shaft, ensuring the stable rotation of the carbon fiber composite drive shaft body 2. The inner wall of the connecting column 1 is rotatably connected to the carbon fiber composite drive shaft body 2, and both ends of the outer wall of the carbon fiber composite drive shaft body 2 are rotatably connected to connecting discs 3. The connecting discs 3 are used to connect the drive shaft body 2 to external equipment, ensuring the stability and reliability of power transmission. A filling block 4 is fixedly connected to the outer wall of the connecting disc 3. The top of the carbon fiber composite drive shaft body 2 is slidably connected to the filling block through it. The filling block 4 serves as an injection point for lubricating oil, facilitating the addition and management of lubricating oil. A lubrication mechanism 5 is provided on the outer wall of the filling block 4. The lubrication mechanism 5 includes a connecting pipe A511, which is fixedly connected to the outer wall of the filling block 4. Connecting pipe A511 serves as a lubricating oil delivery channel, ensuring that the lubricating oil can smoothly reach the parts requiring lubrication and improve the lubrication effect. Connecting pipe B512 is fixedly connected to the connecting end of connecting pipe A511, and a connecting box 514 is fixedly connected to the top of connecting pipe B512. Connecting box 514 serves as a lubricating oil distribution center, ensuring that the lubricating oil can be evenly distributed to each lubrication point. An oil storage pipe 513 is fixedly connected to the outer wall of connecting box 514, used to store lubricating oil and ensure sufficient lubricating oil supply to the lubrication system. A spring 5113 is fixedly connected to the bottom of the inner wall of connecting pipe B512. A sealing plug 5112 is fixedly connected to the top of spring 5113. Spring 5113 maintains the sealing state of sealing plug 5112 through elastic force to prevent lubricating oil leakage. An inner connecting tube 5111 is rotatably connected to the top of sealing plug 5112. Sealing plug 5112 is used to control the flow of lubricating oil, ensuring that lubricating oil only flows into the lubrication point when needed. A rotating shaft 517 is fixedly connected to the top of connecting box 514. Rotating shaft 517 is used to connect rotating rod 518, allowing rotating rod 518 to rotate flexibly. Rotating rod 518 is rotatably connected to the inner wall of rotating shaft 517. The bottom of rotating rod 518 is connected to sealing plug 5112 through inner connecting tube 5111, and the transmission between sealing plug 5112 and rotating rod 518 is carried through inner connecting tube 5111. Connected, the rotating rod 518 serves as an operating lever, allowing the user to control the flow of lubricating oil by rotating or pulling the rotating rod 518. There are three sets of connecting boxes 514, which are symmetrically arranged at equal intervals on the oil storage pipe 513. The outer wall of the second set of connecting boxes 514 is fixedly connected to an oil inlet pipe 515, which is used to add lubricating oil to the oil storage pipe 513. A rectangular groove is opened at the top of the rotating rod 518, and a rectangular limiting block is fixedly connected to the top of the rotating rod 518. The connecting pipe A511 and the connecting pipe B512 are connected in a continuous manner. The outer wall of the sealing plug 5112 is slidably connected to the inner wall of the connecting pipe B512, and the outer wall of the sealing plug 5112 is located at the connection end of the connecting pipe A511 and the connecting pipe B512.

[0027] Reference Figure 2 , Figure 5, Figure 6 The oil storage pipe 513, the connecting box 514, and the connecting pipe B512 are all connected. The outer wall of the rotating rod 518 is slidably connected to the connecting plate 519. The connecting plate 519 is used to connect multiple rotating rods 518, so that the user can control multiple lubrication points at the same time by operating the connecting plate 519. The top of the inner connecting pipe 5111 is fixedly connected to the bottom of the rotating rod 518. The connection end of the inner connecting pipe 5111 and the connecting box 514 is fixedly connected to a sealing gasket. The sealing gasket is used to prevent lubricating oil leakage, ensure the sealing of the lubrication system, and avoid lubricating oil pollution or waste.

[0028] Working principle: The carbon fiber composite drive shaft 2 is rotatably connected to the inner wall of the connecting column 1. Connecting discs 3 are rotatably connected to both ends of the carbon fiber composite drive shaft 2. Connecting pipes A511 are connected to both the connecting column 1 and the filling block 4. During use, lubricating oil is injected through the oil inlet pipe 515 and stored in the oil storage pipe 513. When the connection point of the carbon fiber composite drive shaft 2 lacks lubrication, the operator can manually pull the rotating rod 518 upwards. It should be noted that the knob of the rotating rod 518 and the rectangular groove on 519 are in the same direction, so that pulling 518 upwards will not cause 519 to move vertically. When the rotating rod 518 is pulled upwards, it will cause the sealing plug 5112 to move upwards, so that the lubricating oil flows into the connection point of the carbon fiber composite drive shaft 2 for lubrication, achieving the effect of lubrication of individual nodes.

[0029] When multiple nodes need to be lubricated simultaneously, this device can also lubricate multiple nodes at the same time. The operator first rotates the three sets of rotating rods 518 individually, so that the three sets of rotating rods 518 rotate 90 degrees along the top of 519. At this time, it should be noted that the knob on the top of 518 is in a one-way snap-fit ​​state with 519, so that the rectangular limit block on the top of the rotating rod 518 is snapped onto the connecting plate 519. At the same time, the connecting plate 519 is pulled upward, so that the connecting plate 519, together with the knob, drives the three sets of rotating rods 518 to move upward at the same time, thereby opening the three sets of sealing plugs 5112 at the same time, thus lubricating the connection point simultaneously. The oil reservoir 513 is made of transparent acrylic material, which makes it easy to observe the amount of lubricating oil in real time and to add oil.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber composite drive shaft, comprising a connecting column (1), characterized in that: A carbon fiber composite drive shaft (2) is rotatably connected to the inner wall of the connecting column (1). Connecting discs (3) are rotatably connected to both ends of the outer wall of the carbon fiber composite drive shaft (2). A filling block (4) is fixedly connected to the outer wall of the connecting disc (3). The top of the carbon fiber composite drive shaft (2) is slidably connected to the filling block. A lubrication mechanism (5) is provided on the outer wall of the filling block (4). The lubrication mechanism (5) includes a connecting pipe A (511), which is fixedly connected to the filling block (4). The outer wall of the connecting pipe A (511) is fixedly connected to the connecting end of the connecting pipe B (512), the top of the connecting pipe B (512) is fixedly connected to the connecting box (514), the outer wall of the connecting box (514) is fixedly connected to the oil storage pipe (513), the bottom of the inner wall of the connecting pipe B (512) is fixedly connected to the spring (5113), the top of the spring (5113) is fixedly connected to the sealing plug (5112), and the top of the sealing plug (5112) is rotatably connected to the inner connecting pipe (5111).

2. The carbon fiber composite drive shaft according to claim 1, characterized in that: The top of the connecting box (514) is fixedly connected to a rotating shaft (517), and the inner wall of the rotating shaft (517) is rotatably connected to a rotating rod (518). The bottom of the rotating rod (518) is connected to a sealing plug (5112) through an inner connecting pipe (5111).

3. The carbon fiber composite drive shaft according to claim 1, characterized in that: The number of the connecting boxes (514) is three sets. The three sets of connecting boxes (514) are symmetrically arranged at equal intervals on the oil storage pipe (513). The outer wall of the second set of connecting boxes (514) is fixedly connected to the oil inlet pipe (515).

4. The carbon fiber composite drive shaft according to claim 2, characterized in that: The top of the rotating rod (518) is provided with a rectangular groove, and a rectangular limiting block is fixedly connected to the top of the rotating rod (518).

5. A carbon fiber composite drive shaft according to claim 1, characterized in that: The connecting pipe A (511) is connected to the connecting pipe B (512), and the outer wall of the sealing plug (5112) is slidably connected to the inner wall of the connecting pipe B (512).

6. A carbon fiber composite drive shaft according to claim 1, characterized in that: The outer wall of the sealing plug (5112) is located at the connection end between the connecting pipe A (511) and the connecting pipe B (512).

7. A carbon fiber composite drive shaft according to claim 4, characterized in that: The oil storage pipe (513), the connecting box (514), and the connecting pipe B (512) are all connected together, and the outer wall of the rotating rod (518) is slidably connected to the connecting plate (519).

8. A carbon fiber composite drive shaft according to claim 1, characterized in that: The top of the inner connecting tube (5111) is fixedly connected to the bottom of the rotating rod (518), and a sealing gasket is fixedly connected to the connection end of the inner connecting tube (5111) and the connecting box (514).

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