Universal transmission shaft with long service life

Abstract

The utility model relates to the technical field of transmission shaft equipment, and discloses a universal transmission shaft with long service life, which comprises a transmission shaft body, a first connecting shaft is arranged at the right end of the transmission shaft body, a first connecting flange is fixedly mounted at the right end of the first connecting shaft, and two side plates are welded at the left end of the transmission shaft body. A first rotating shaft is rotationally connected between the two side plates, a second rotating shaft is rotationally connected to the surface of the first rotating shaft, and a connecting frame is rotationally connected to the surface of the second rotating shaft. When the lubricating device is used, the protection assembly and the annular cover are arranged, the circular plate, the elastic sealing film and the annular cover form the sealing cavity, and heat conduction lubricating oil is stored in the sealing cavity, so that the purpose of lubricating the first rotating shaft and the second rotating shaft can be achieved, and friction is reduced; and heat generated by friction of the first rotating shaft and the second rotating shaft can be quickly conducted out through heat-conducting lubricating oil, the structural strength is ensured, and the service life of the whole transmission shaft is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft equipment, and more specifically to a universal transmission shaft with a long service life. Background Art

[0002] The drive shaft is an important component for transmitting power in the automobile transmission system. Its function is to transfer the power of the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force.

[0003] After searching, the existing patent (publication number: CN213575237U) discloses a universal transmission shaft assembly with a long service life. When in use, the reinforcing sleeve can strengthen the strength of the connection between the transmission shaft and the connecting shaft, thereby preventing the universal transmission shaft assembly from breaking at the connection, so as to improve the service life of the universal transmission shaft assembly, and the protective ring can strengthen the connection strength between the transmission shaft and the universal joint fork, thereby improving the safety of the universal joint fork. Through the second connecting flange, it can be connected to the equipment, and then the second connecting flange can be connected to the universal joint fork as a whole through the flange fork, thereby playing the role of universal rotation. On the other hand, it proposes a protective layer structure that can protect the transmission shaft and the connecting shaft. However, the inventor found that the prior art has the following problems in the process of realizing the utility model: the above-mentioned universal transmission shaft structure, during use, due to the rotation of the transmission shaft, will cause continuous rotation and friction between the universal joint fork and the flange fork, which will cause greater wear between the two, and the friction will cause the structure to heat up, affecting the strength of the structure, thereby causing the overall service life of the transmission shaft to be reduced.

[0004] In view of this, the utility model proposes a universal transmission shaft with a long service life to solve this problem. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a universal transmission shaft with a long service life to solve the problems existing in the above background technology.

[0006] The utility model provides the following technical solution: a universal transmission shaft with a long service life, comprising a transmission shaft body, a first connecting shaft is arranged at the right end of the transmission shaft body, a first connecting flange is fixedly installed at the right end of the first connecting shaft, two side plates are welded to the left end of the transmission shaft body, a first rotating shaft is rotatably connected between the two side plates, a second rotating shaft is rotatably connected to the surface of the first rotating shaft, a connecting frame is rotatably connected to the surface of the second rotating shaft, a second connecting shaft is fixedly installed at the left end of the connecting frame, a second connecting flange is welded to the left end of the second connecting shaft, and a protective component is arranged between the surface of the transmission shaft body and the second connecting shaft;

[0007] The protective component includes an annular cover fixedly mounted on the left end surface of the transmission shaft body, the annular cover is arranged on the surface of the connecting frame, and an opening for the second connecting shaft to move is reserved at the left end of the annular cover, a circular plate is rotatably connected to the surface of the second connecting shaft through a sealing bearing, an elastic sealing membrane for sealing the opening is arranged between the circular plate and the annular cover, and the inner cavity of the annular cover stores heat-conducting lubricating oil.

[0008] Furthermore, the first connecting shaft and the transmission shaft body are movably connected, a rectangular groove is opened at the right end of the transmission shaft body, the left end of the first connecting shaft is inserted into the inside of the rectangular groove and matched with the rectangular groove, and a spiral cover is sleeved on the surface of the first connecting shaft to prevent the first connecting shaft from being separated from the rectangular groove, and the spiral cover is threadedly connected to the right end of the transmission shaft body; the first connecting shaft and the transmission shaft body are movably connected, which facilitates the disassembly of the two, and only a single structure needs to be replaced during maintenance, thereby reducing maintenance costs.

[0009] Furthermore, the surface of the spiral cover is movably connected with an anti-drop pin through a spring, and a pin hole is opened at the right end of the transmission shaft body, and the anti-drop pin is inserted into the pin hole; by inserting the anti-drop pin into the pin hole, the spiral cover can be positioned to avoid the spiral cover loosening and causing the first connecting shaft and the transmission shaft body to separate, thereby ensuring stability in use.

[0010] Furthermore, a filling hole is opened on the surface of the annular cover, and a sealing cover is arranged on the surface of the filling hole.

[0011] Furthermore, a plurality of heat-conducting fins are embedded in a circular array on the surface of the annular cover; by providing the heat-conducting fins, the heat of the heat-conducting lubricating oil can be quickly conducted to the external environment, so that the heat-conducting lubricating oil can always be maintained at a low temperature.

[0012] Furthermore, spiral blades are fixedly installed on the surface of the second connecting shaft; by providing the spiral blades, when the second connecting shaft rotates, the spiral blades can be driven to rotate, thereby achieving the effect of stirring the thermal conductive lubricating oil, maintaining the flow of the thermal conductive lubricating oil, and avoiding partial emulsification thereof.

[0013] Furthermore, the surface of the transmission shaft body is welded with a number of reinforcing ribs in a circular array at equal intervals, and the directions of the reinforcing ribs are parallel to the central axis of the transmission shaft body; by providing the reinforcing ribs, the structural strength of the transmission shaft body 1 itself can be enhanced, making it less likely to twist off.

[0014] Furthermore, a mounting ring is rotatably connected to the surface of the transmission shaft body, and a mounting plate for fixing to an external vehicle frame is welded to the surface of the mounting ring.

[0015] Technical effects and advantages of the utility model:

[0016] 1. When the utility model is in use, the mounting plate is fixed to the external frame, the first connecting flange and the second connecting flange are installed to the external equipment, and the driving force is transmitted by the transmission shaft body. In the process of using the universal transmission shaft, a protective component is set, an annular cover is set, and then a sealed cavity is formed by a circular plate and an elastic sealing film and the annular cover, and heat-conducting lubricating oil is stored in the sealed cavity, so as to achieve the purpose of lubricating the first rotating shaft and the second rotating shaft, reduce friction, and can use the heat-conducting lubricating oil to quickly conduct away the heat generated by the friction between the first rotating shaft and the second rotating shaft, thereby ensuring the strength of the structure and maintaining the service life of the entire transmission shaft.

[0017] 2. The utility model, by arranging spiral blades, can drive the spiral blades to rotate when the second connecting shaft rotates, thereby achieving the effect of stirring the heat-conducting lubricating oil, maintaining the flow of the heat-conducting lubricating oil, and avoiding the partial emulsification of the heat-conducting lubricating oil; by arranging heat-conducting fins, the heat of the heat-conducting lubricating oil can be quickly conducted to the external environment, so that the heat-conducting lubricating oil can always be maintained at a low temperature state; the first connecting shaft and the transmission shaft body are movably connected, which facilitates the disassembly of the two. During maintenance, only a single structure needs to be replaced, reducing maintenance costs; by inserting the anti-drop pin into the pin hole, the spiral cover can be positioned, avoiding the situation where the first connecting shaft and the transmission shaft body are separated due to loosening of the spiral cover, thereby ensuring stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the connecting frame of the utility model;

[0020] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0021] The accompanying drawings are marked as follows: 1. transmission shaft body; 2. first connecting shaft; 3. first connecting flange; 4. first rotating shaft; 5. second rotating shaft; 6. connecting frame; 7. second connecting shaft; 8. second connecting flange; 9. annular cover; 10. circular plate; 11. elastic sealing membrane; 12. spiral cover; 13. spring; 14. anti-drop pin; 15. sealing cover; 16. spiral blade; 17. reinforcing rib; 18. heat-conducting fin; 19. mounting ring; 20. mounting plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The universal joint transmission shaft with a long service life involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1-3 The utility model provides a universal transmission shaft with a long service life, including a transmission shaft body 1, a mounting ring 19 is rotatably connected to the surface of the transmission shaft body 1, and a mounting plate 20 for fixing to an external frame is welded on the surface of the mounting ring 19.

[0024] A first connecting shaft 2 is provided at the right end of the transmission shaft body 1, and a first connecting flange 3 is fixedly installed at the right end of the first connecting shaft 2. Two side plates are welded to the left end of the transmission shaft body 1, and a first rotating shaft 4 is rotatably connected between the two side plates. The surface of the first rotating shaft 4 is rotatably connected to the second rotating shaft 5, and the surface of the second rotating shaft 5 is rotatably connected to a connecting frame 6. A second connecting shaft 7 is fixedly installed at the left end of the connecting frame 6, and a second connecting flange 8 is welded to the left end of the second connecting shaft 7.

[0025] When the utility model is in use, the mounting plate 20 is fixed to the external frame, the first connecting flange 3 and the second connecting flange 8 are installed to the external equipment, and the driving force is transmitted by the transmission shaft body 1 .

[0026] The first connecting shaft 2 and the transmission shaft body 1 are movably connected. A rectangular groove is opened at the right end of the transmission shaft body 1. The left end of the first connecting shaft 2 is inserted into the inside of the rectangular groove and adapted to the rectangular groove. A spiral cover 12 is sleeved on the surface of the first connecting shaft 2 to prevent the first connecting shaft 2 from detaching from the rectangular groove. The spiral cover 12 is threadedly connected to the right end of the transmission shaft body 1.

[0027] The first connecting shaft 2 and the transmission shaft body 1 are movably connected, so that the two can be easily disassembled. During maintenance, only a single structure needs to be replaced, thus reducing maintenance costs.

[0028] The surface of the spiral cover 12 is movably connected with an anti-drop pin 14 via a spring 13 . A pin hole is formed at the right end of the transmission shaft body 1 , and the anti-drop pin 14 is inserted into the pin hole.

[0029] By inserting the anti-drop pin 14 into the pin hole, the spiral cover 12 can be positioned to avoid the spiral cover 12 loosening and causing the first connecting shaft 2 and the transmission shaft body 1 to separate, thereby ensuring stability in use.

[0030] The surface of the transmission shaft body 1 is welded with a plurality of reinforcing ribs 17 in a circumferential array at equal intervals. The directions of the reinforcing ribs 17 are parallel to the central axis of the transmission shaft body 1 .

[0031] By providing the reinforcing ribs 17 , the structural strength of the transmission shaft body 1 can be enhanced, making it less likely to be twisted off.

[0032] A protection component is provided between the surface of the transmission shaft body 1 and the second connecting shaft 7 .

[0033] The protection component includes an annular cover 9 fixedly mounted on the left end surface of the transmission shaft body 1. The annular cover 9 is arranged on the surface of the connecting frame 6, and an opening for the second connecting shaft 7 to move is reserved at the left end of the annular cover 9. A circular plate 10 is rotatably connected to the surface of the second connecting shaft 7 through a sealed bearing. An elastic sealing membrane 11 is arranged between the circular plate 10 and the annular cover 9 for sealing the opening. The inner cavity of the annular cover 9 stores heat-conducting lubricating oil. A filling hole is opened on the surface of the annular cover 9, and a sealing cover 15 is arranged on the surface of the filling hole.

[0034] In the process of using the universal transmission shaft, by setting up a protective component, setting up an annular cover 9, and then using the circular plate 10 and the elastic sealing membrane 11 to form a sealed cavity with the annular cover 9, and storing heat-conducting lubricating oil inside the sealed cavity, the purpose of lubricating the first rotating shaft 4 and the second rotating shaft 5 during power transmission can be achieved, friction can be reduced, and the heat generated by the friction between the first rotating shaft 4 and the second rotating shaft 5 can be quickly discharged using the heat-conducting lubricating oil, thereby ensuring the strength of the structure and maintaining the service life of the entire transmission shaft.

[0035] A plurality of heat-conducting fins 18 are embedded in a circumferential array on the surface of the annular cover 9 .

[0036] By providing the heat-conducting fins 18, the heat of the heat-conducting lubricating oil can be quickly conducted to the external environment, so that the heat-conducting lubricating oil can always be maintained at a low temperature.

[0037] A spiral blade 16 is fixedly mounted on the surface of the second connecting shaft 7 .

[0038] By setting the spiral blade 16, when the second connecting shaft 7 rotates, the spiral blade 16 can be driven to rotate, thereby achieving the effect of stirring the thermal lubricating oil, maintaining the flow of the thermal lubricating oil, avoiding partial transition running-in and emulsification due to poor fluidity, and ensuring its long-term use.

[0039] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures may refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention may be combined with each other.

Claims

1. A universal transmission shaft with a long service life, comprising a transmission shaft body (1), characterized in that: The right end of the transmission shaft body (1) is provided with a first connecting shaft (2), the right end of the first connecting shaft (2) is fixedly installed with a first connecting flange (3), the left end of the transmission shaft body (1) is welded with two side plates, a first rotating shaft (4) is rotatably connected between the two side plates, the surface of the first rotating shaft (4) is rotatably connected with a second rotating shaft (5), the surface of the second rotating shaft (5) is rotatably connected with a connecting frame (6), the left end of the connecting frame (6) is fixedly installed with a second connecting shaft (7), the left end of the second connecting shaft (7) is welded with a second connecting flange (8), and a protective component is provided between the surface of the transmission shaft body (1) and the second connecting shaft (7); The protection component comprises an annular cover (9) fixedly mounted on the left end surface of the transmission shaft body (1); the annular cover (9) is arranged on the surface of the connecting frame (6); and an opening for the second connecting shaft (7) to move is reserved at the left end of the annular cover (9); a circular plate (10) is rotatably connected to the surface of the second connecting shaft (7) via a sealing bearing; an elastic sealing membrane (11) for sealing the opening is arranged between the circular plate (10) and the annular cover (9); and heat-conducting lubricating oil is stored in the inner cavity of the annular cover (9).

2. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: The first connecting shaft (2) and the transmission shaft body (1) are movably connected, a rectangular groove is provided at the right end of the transmission shaft body (1), the left end of the first connecting shaft (2) is inserted into the rectangular groove and matches the rectangular groove, a spiral cover (12) is sleeved on the surface of the first connecting shaft (2) to prevent the first connecting shaft (2) from being separated from the rectangular groove, and the spiral cover (12) is threadedly connected to the right end of the transmission shaft body (1).

3. A universal joint transmission shaft with a long service life according to claim 2, characterized in that: The surface of the spiral cover (12) is movably connected with an anti-drop pin (14) via a spring (13); a pin hole is provided at the right end of the transmission shaft body (1), and the anti-drop pin (14) is inserted into the pin hole.

4. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: A filling hole is provided on the surface of the annular cover (9), and a sealing cover (15) is provided on the surface of the filling hole.

5. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: A plurality of heat-conducting fin plates (18) are embedded in a circumferential array on the surface of the annular cover (9).

6. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: A spiral blade (16) is fixedly mounted on the surface of the second connecting shaft (7).

7. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: The surface of the transmission shaft body (1) is welded with a plurality of reinforcing ribs (17) in a circular array at equal intervals, and the direction of the reinforcing ribs (17) is parallel to the central axis of the transmission shaft body (1).

8. A universal joint transmission shaft with a long service life according to claim 1, characterized in that: A mounting ring (19) is rotatably connected to the surface of the transmission shaft body (1), and a mounting plate (20) for fixing to an external vehicle frame is welded to the surface of the mounting ring (19).

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