Driving shaft of anti-fatigue fracture connecting mechanism

Abstract

The utility model discloses a driving shaft of an anti-fatigue fracture connecting mechanism, and relates to the technical field of arrangement or installation of vehicle transmission devices. The driving shaft of the anti-fatigue fracture connecting mechanism comprises a first connecting cylinder and a second connecting cylinder, the driving shaft and an anti-fracture connecting structure are installed in the first connecting cylinder and the second connecting cylinder, and the anti-fracture connecting structure is located on the first connecting cylinder and the second connecting cylinder. The anti-fracture connecting structure comprises four bolts, an anti-fracture mounting cylinder and an anti-fracture mounting plate, and through cooperation of the four bolts, the anti-fracture mounting cylinder and the anti-fracture mounting plate, the anti-fracture mounting cylinder and the anti-fracture mounting plate are annular connecting pieces, so that the connecting structure is tighter and more uniform; and the joint of the first connecting cylinder and the second connecting cylinder uniformly acts on the anti-fracture mounting plate, so that the connecting strength and stability of the first connecting cylinder and the second connecting cylinder are improved, the connecting stability is further improved, and the service life is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of arrangement or installation of a vehicle transmission device, in particular to a drive shaft of an anti-fatigue fracture connection mechanism. Background Art

[0002] In mechanical engineering, the drive shaft is widely used in various equipment and systems as a key component for transmitting torque and power. However, since the drive shaft is subjected to complex alternating stress, vibration and impact during operation, fatigue fracture is very likely to occur. This not only seriously affects the normal operation and service life of the equipment, but may also lead to safety accidents. The Chinese utility model patent, authorization announcement number "CN217415482U" discloses an anti-fatigue fracture connection mechanism for the horizontal travel drive shaft of an oxidation traveling crane. In the anti-fatigue fracture connection mechanism for the horizontal travel drive shaft of an oxidation traveling crane, the drive shaft is rotatably installed in the connecting member through the setting of the connecting member, and the driving shaft is provided with auxiliary support by the connecting member to avoid the problem of poor stability caused by the suspension of the drive shaft due to lack of support. At the same time, the connecting member increases the radial thickness of the drive shaft, which can increase the rigidity of the drive shaft and avoid the risk of fatigue fracture of the drive shaft. The connecting member is formed by the docking combination of the first support cylinder and the second support cylinder, which can make the connecting member easy to disassemble.

[0003] During use of the above technical solution, although a shock-absorbing structure is arranged on the outside, the installation of the damper may take up additional space, especially in a compact equipment layout, which may limit the layout flexibility of the drive shaft and other components, and may even require the redesign of the entire equipment structure to accommodate the installation of the damper. In addition, since the drive shaft has a high requirement for axial thrust, in the case of strong vibration, this connection may be more susceptible to shock and vibration, resulting in unstable or failed connection, and the pressure distribution on the connection surface of the flat flange may not be uniform, which may be aggravated in a strong vibration environment, thereby affecting the stability and life of the connection. Therefore, we propose a drive shaft with an anti-fatigue fracture connection mechanism. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a drive shaft with an anti-fatigue fracture connection mechanism, which can solve the problem that due to the high requirement of the drive shaft on the axial thrust, in the case of strong vibration, this connection may be more susceptible to impact and vibration, resulting in unstable connection or failure, and the pressure distribution on the connection surface of the flat flange may also be uneven, which may be aggravated in an environment with strong vibration, thereby affecting the stability and life of the connection.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a driving shaft of an anti-fatigue fracture connection mechanism, comprising:

[0006] A first connecting cylinder and a second connecting cylinder, wherein a driving shaft is installed inside the first connecting cylinder and the second connecting cylinder;

[0007] An anti-fracture connection structure, the anti-fracture connection structure is located on the first connection tube and the second connection tube;

[0008] The anti-fracture connection structure includes four bolts, an anti-fracture mounting tube and an anti-fracture mounting plate. The anti-fracture mounting tube is fixedly sleeved on the outer surface of the first connecting tube, and the anti-fracture mounting plate is fixedly sleeved on the outer surface of the second connecting tube. A mounting cavity is provided on the side of the anti-fracture mounting tube close to the second connecting tube. The anti-fracture mounting plate is slidably connected to the inside of the mounting cavity, and the anti-fracture mounting tube is fixedly mounted to the anti-fracture mounting plate by four bolts.

[0009] Preferably, a positioning groove is provided on the inner wall of the installation cavity, a positioning plate is fixedly connected to the outer surface of the anti-fracture installation plate, and the positioning plate is slidably connected to the positioning groove.

[0010] Preferably, the inner walls of the first connecting tube and the second connecting tube are both rotatably connected with a rotating inner ring, and the opposite back surfaces of the first connecting tube and the second connecting tube are both provided with a rotating shaft hole.

[0011] Preferably, the drive shaft is installed inside the two rotating inner rings, and shaft necks are fixedly installed at both ends of the drive shaft, and the two shaft necks are rotatably connected to the corresponding rotating shaft holes.

[0012] Preferably, the inner walls of the first connecting tube and the second connecting tube are each provided with a plurality of outer rings, and the outer surfaces of the two rotating inner rings are each provided with a plurality of inner rings corresponding to the outer rings.

[0013] Preferably, a plurality of ball bearings adapted to the outer rings are installed inside the first connecting tube and the second connecting tube, and the plurality of ball bearings are located outside the corresponding rotating inner rings.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The driving shaft of the anti-fatigue fracture connection mechanism is made of four bolts, an anti-fracture mounting tube and an anti-fracture mounting plate, so that the anti-fracture mounting tube and the anti-fracture mounting plate are both annular connecting parts. This connection structure is tighter and more uniform, so that the connection between the first connecting tube and the second connecting tube acts evenly on the anti-fracture mounting plate, thereby improving the strength and stability of the connection between the first connecting tube and the second connecting tube, and further improving the stability and service life of the connection.

[0016] (2) The driving shaft of the anti-fatigue fracture connection mechanism is connected by the positioning plate and the positioning groove, so that when the anti-fracture mounting tube and the anti-fracture mounting plate are installed, the threaded holes on the anti-fracture mounting plate can correspond to the threaded holes on the anti-fracture mounting tube, thereby facilitating the anti-fracture mounting plate to be quickly fixed in the anti-fracture mounting tube, further improving the convenience of the connection structure during docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the drive shaft structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the second connection cross-sectional structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the first connecting tube of the utility model.

[0022] Figure numerals: 1. first connecting cylinder; 2. second connecting cylinder; 3. shaft neck; 4. anti-fracture mounting cylinder; 5. anti-fracture mounting plate; 6. bolt; 7. rotating inner ring; 8. ball bearing; 9. driving shaft; 10. inner ring; 11. outer ring; 12. rotating shaft hole; 13. mounting cavity; 14. positioning groove; 15. positioning plate. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] See also Figure 1-4 The utility model provides a technical solution: a driving shaft of an anti-fatigue fracture connection mechanism, comprising:

[0028] A first connecting cylinder 1 and a second connecting cylinder 2, wherein a driving shaft 9 is installed inside the first connecting cylinder 1 and the second connecting cylinder 2;

[0029] An anti-fracture connection structure, which is located on the first connection tube 1 and the second connection tube 2;

[0030] The anti-fracture connection structure includes four bolts 6, an anti-fracture mounting tube 4 and an anti-fracture mounting plate 5. The anti-fracture mounting tube 4 is fixedly sleeved on the outer surface of the first connecting tube 1, and the anti-fracture mounting plate 5 is fixedly sleeved on the outer surface of the second connecting tube 2. A mounting cavity 13 is provided on the side of the anti-fracture mounting tube 4 close to the second connecting tube 2. The anti-fracture mounting plate 5 is slidably connected to the inside of the mounting cavity 13. The anti-fracture mounting tube 4 is fixedly mounted on the anti-fracture mounting plate 5 by four bolts 6.

[0031] The inner wall of the installation cavity 13 is provided with a positioning groove 14 , and the outer surface of the anti-fracture installation plate 5 is fixedly connected with a positioning plate 15 , and the positioning plate 15 is slidably connected with the positioning groove 14 .

[0032] The inner walls of the first connecting tube 1 and the second connecting tube 2 are rotatably connected with a rotating inner ring 7, and the opposite back surfaces of the first connecting tube 1 and the second connecting tube 2 are provided with a rotating shaft hole 12. The driving shaft 9 is installed inside the two rotating inner rings 7, and the two ends of the driving shaft 9 are fixedly installed with shaft necks 3, and the two shaft necks 3 are rotatably connected with the corresponding rotating shaft holes 12.

[0033] The inner walls of the first connecting tube 1 and the second connecting tube 2 are each provided with a plurality of outer rings 11, the outer surfaces of the two rotating inner rings 7 are each provided with a plurality of inner rings 10 corresponding to the outer rings 11, and the interiors of the first connecting tube 1 and the second connecting tube 2 are each installed with a plurality of ball bearings 8 adapted to the outer rings 11, and the plurality of ball bearings 8 are all located outside the corresponding rotating inner rings 7.

[0034] Furthermore, when using the device, the operator inserts the anti-fracture mounting plate 5 into the mounting cavity 13 in the anti-fracture mounting tube 4, so that the positioning plate 15 on the anti-fracture mounting plate 5 corresponds to the positioning groove 14 in the mounting cavity 13, so that the threaded holes on the anti-fracture mounting plate 5 can correspond to the threaded holes on the anti-fracture mounting tube 4, thereby facilitating the rapid fixing of the anti-fracture mounting plate 5 in the anti-fracture mounting tube 4, so that the anti-fracture mounting plate 5 is located at the connection between the first connecting tube 1 and the second connecting tube 2, and at the same time increases the connection area between the first connecting tube 1 and the second connecting tube 2, and when the driving shaft 9 rotates, the two rotating inner rings 7 are driven to rotate under the action of multiple ball bearings 8.

[0035] Through the cooperation of four bolts 6, the anti-fracture mounting tube 4 and the anti-fracture mounting plate 5, the anti-fracture mounting tube 4 and the anti-fracture mounting plate 5 are both annular connecting parts. This connection structure is tighter and more uniform, so that the connection between the first connecting tube 1 and the second connecting tube 2 acts evenly on the anti-fracture mounting plate 5, thereby improving the strength and stability of the connection between the first connecting tube 1 and the second connecting tube 2, and further improving the stability and service life of the connection.

[0036] By plugging the positioning plate 15 into the positioning groove 14, when the anti-fracture mounting tube 4 and the anti-fracture mounting plate 5 are installed, the threaded holes on the anti-fracture mounting plate 5 can correspond to the threaded holes on the anti-fracture mounting tube 4, thereby facilitating the anti-fracture mounting plate 5 to be quickly fixed in the anti-fracture mounting tube 4, further improving the convenience of the connection structure during docking.

[0037] Working principle: The operator inserts the anti-fracture mounting plate 5 into the mounting cavity 13 in the anti-fracture mounting tube 4, so that the positioning plate 15 on the anti-fracture mounting plate 5 corresponds to the positioning groove 14 in the mounting cavity 13, so that the threaded holes on the anti-fracture mounting plate 5 can correspond to the threaded holes on the anti-fracture mounting tube 4, thereby facilitating the quick fixing of the anti-fracture mounting plate 5 in the anti-fracture mounting tube 4, so that the anti-fracture mounting plate 5 is located at the connection between the first connecting tube 1 and the second connecting tube 2, and at the same time increases the connection area between the first connecting tube 1 and the second connecting tube 2.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A drive shaft of a fatigue-proof fracture connection mechanism, characterized in that: include: A first connecting cylinder (1) and a second connecting cylinder (2), wherein a driving shaft (9) is installed inside the first connecting cylinder (1) and the second connecting cylinder (2); An anti-fracture connection structure, the anti-fracture connection structure being located on the first connection tube (1) and the second connection tube (2); The anti-fracture connection structure comprises four bolts (6), an anti-fracture mounting tube (4) and an anti-fracture mounting plate (5); the anti-fracture mounting tube (4) is fixedly sleeved on the outer surface of the first connecting tube (1), and the anti-fracture mounting plate (5) is fixedly sleeved on the outer surface of the second connecting tube (2); A mounting cavity (13) is provided on a side of the anti-fracture mounting cylinder (4) close to the second connecting cylinder (2), and the anti-fracture mounting plate (5) is slidably connected to the interior of the mounting cavity (13); The anti-fracture mounting cylinder (4) is fixedly mounted to the anti-fracture mounting plate (5) via four bolts (6).

2. The drive shaft of the fatigue-proof fracture connection mechanism according to claim 1, characterized in that: The inner wall of the installation cavity (13) is provided with a positioning groove (14), the outer surface of the anti-fracture installation plate (5) is fixedly connected with a positioning plate (15), and the positioning plate (15) is slidably connected to the positioning groove (14).

3. The drive shaft of the fatigue-proof fracture connection mechanism according to claim 1, characterized in that: The inner walls of the first connecting tube (1) and the second connecting tube (2) are both rotatably connected with a rotating inner ring (7), and the opposite back surfaces of the first connecting tube (1) and the second connecting tube (2) are both provided with a rotating shaft hole (12).

4. The driving shaft of the fatigue-proof fracture connection mechanism according to claim 3, characterized in that: The drive shaft (9) is mounted inside the two rotating inner rings (7), and shaft necks (3) are fixedly mounted at both ends of the drive shaft (9), and the two shaft necks (3) are rotatably connected to corresponding rotating shaft holes (12).

5. The driving shaft of the fatigue-fracture-resistant connection mechanism according to claim 3, characterized in that: The inner walls of the first connecting tube (1) and the second connecting tube (2) are each provided with a plurality of outer rings (11), and the outer surfaces of the two rotating inner rings (7) are each provided with a plurality of inner rings (10) corresponding to the outer rings (11).

6. The driving shaft of the fatigue-fracture-resistant connection mechanism according to claim 5, characterized in that: A plurality of ball bearings (8) adapted to the outer ring (11) are installed inside the first connecting tube (1) and the second connecting tube (2), and the plurality of ball bearings (8) are located outside the corresponding rotating inner ring (7).

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