REINFORCED THREE-ARM AND FOUR-ARM CARDAN SHAFT FLANGE

Abstract

The invention relates in particular to a reinforced three or four-arm flange (10) part which is welded to the driveshaft tube, providing the shaft connection on one side and connecting to the gearbox output with a coupling (20) on the other side, thus enabling the transmission of power and motion, and eliminating the reduction in wall thickness by creating a positive protrusion (13) in the bolt connection areas by cold forming.

Description

1 TARIFF REINFORCED THREE-ARM AND FOUR-ARM CARDAN SHAFT FLANGE Technical Area The invention relates to the rotational motion and power transfer between the differential and the transmission in motor vehicles. It relates to the three or four-arm flange section of the driveshaft that provides transmission. 5 The invention, in particular, involves welding the shaft connection from one side to the driveshaft tube. while providing power, it is also connected to the transmission output via a coupling, thereby providing power and a bolt that enables the transmission of power through cold forming Three or four arms reinforced by creating a positive projection at the connection points. This relates to the driveshaft flange part. 10 State of the Art Today, three or four-arm flange components used in driveshafts are particularly important for strength. It plays an important role in transmission systems. Located at one end of the driveshaft, this A flange is an element that provides a connection between one shaft or component and another. These flanges... Generally, when transmitting the motion of the driveshaft, the shaft is subjected to high torque and stress conditions. It is designed to ensure durability. In motor vehicles, it is used with differentials. The driveshaft, which provides rotational movement and power transmission between the gearbox and the driveshaft, is used in vehicles. widely used to provide power transmission in machinery and industrial applications Flange components are used and serve as a critical connecting element in this system. It takes. 20 In the current technique, the flanges mentioned are hot-formed using forging technology. It is produced using this method. Forging technology is delicate due to the mold-working principle. Because multi-walled structures cannot be produced, the parts are heavy, and due to the resulting geometry, it is very difficult. Extensive machining operations are applied. Three and four-arm flanges are made of flat steel. These difficulties can be overcome through production. However, due to the assembly relationships of the part, 25 Indentations and machining operations cause critical reductions in part thickness, and It negatively affects durability. In the known state of the art, cold forming method using flat steel There are currently some advantages to the three and four-arm flange components that have been manufactured. There are disadvantages. Advantages include using flat steel for three and four 30 2 The production of lever flanges offers cost and weight savings, as well as chip removal. Its advantages include reducing or eliminating the process. Its disadvantages include... Examples include the creation of critical wall thicknesses through machining. Cold-rolled flat steel. In three and four-arm flange designs produced by the forming method, on the couplings There are indentations where the towers should sit. 5 in flat metal material. Due to the nature of the production process, thin-walled parts are used, so additional indentations enhance the thickness of the part. This leads to critical reductions in thickness. In current technology, two-piece, three- and four-arm flanges are bolted together via an elastic coupling. It is connected to the gearbox. The bushings located on the coupling are mounted on the flange. It provides centering by being mounted into the recesses. Through this centering, 10 The parts are connected using bolt and nut connections. They are made of flat metal material. Flange parts are naturally in the 3-6 mm range, and also have variable thickness. It is not possible to produce parts with these thicknesses. The aforementioned centering flange function When the visible indentation is created on the flange piece, the wall thicknesses reach a critical level. It is decreasing. This negatively affects its strength. 15 To address the aforementioned drawbacks, we eliminate the reduction in thickness of the meat and This necessitates the introduction of a flange component that increases strength. As a result of the research conducted, the numbered WO2006032393A1 was identified in relation to this matter. A document was found. The document in question describes a three-arm flange and a centering mechanism. 20 with a drive shaft that has a connecting element where the bushing is supplied as a single piece. It is relevant. However, the current technical flange surface shows the area where the connecting bolts are located. by allowing inflation and increasing the security of the fasteners. It does not include a locking wedge surface. Another document encountered during the research is CN210265556U. The relevant document... The document relates to a three-arm flange. In current technology, the connection area is forged using method 25. The text refers to a flange that forms steps at the connection points. However, specifically, inflating the area on the flange surface where the connecting bolts are located, and Locking wedges that increase the connection security of fasteners. It does not contain a surface. In conclusion, due to the negative aspects described above and the current solutions regarding issue 30 Due to its shortcomings, an improvement is needed in the relevant technical field. It has been made. 3 The purpose of the invention The invention was created by drawing inspiration from existing situations and overcoming the aforementioned drawbacks. It aims to solve the problem. The main purpose of the invention is to connect the driveshaft from one side by welding it to the driveshaft tube. while providing power, on the other hand, it is connected to the transmission output by a coupling, thus providing power and 5 cold forming connection that enables the transmission of motion. The goal is to introduce three or four-arm flange pieces that reinforce the areas. The other purpose of the invention is to create a centering flange by removing chips from the connection holes. The purpose is to ensure that the coupling sits precisely and securely on the flange part. Another purpose of the invention is to create an inverted 10 in the connection areas, i.e., in the bolt holes. thanks to positive protrusions in the direction, centering is achieved through recesses opened on the flange. The aim is to eliminate the reduction in wall thickness caused by this. This positively impacts durability. is being increased. Another purpose of the invention is; in the flange connection area where the connection hole is located. 15 thanks to a wedge-shaped surface structured on the positive protruding surfaces created. In working environments exposed to vibration and dynamic loads, bolts are more... The goal is to ensure a secure connection is established. To fulfill the purposes described above, the invention provides a differential for motor vehicles. the driveshaft tube that provides rotational movement and power transmission between the gearbox By welding, it provides a shaft connection on one side while on the other side it connects with a coupling of 20 connected to the transmission output, thereby enabling the transmission of power and motion. It is a three or four-arm flange piece that enables the implementation of a specific function; its characteristic is:  Precisely applied to the surface of the three or four-arm flange part of the coupling. on the surface of the mounting holes that ensures it sits securely and does not slip Centering invoice opened by removing chips and 25  Recesses occurring in the connection holes due to the centering flange. As a result, to eliminate the decrease in wall thickness, bolt Positive formed by cold forming in connection areas protruding areas 4 It includes. The structural and characteristic features and all the advantages of the invention are given in the figures below. This becomes clearer thanks to the detailed explanation written with references to these figures. This will be understood as such, and therefore the evaluation will also take these forms and detailed explanations into account. This should be done taking this into consideration. 5 Ways to Help Understand the Discovery Figure 1 shows the appearance of the flange part that is the subject of the previous technique and invention. Figure 2 shows the appearance of three-arm and four-arm flange components. Figure 3 shows the pre-assembly view of the three-arm flange component and coupling. Figure 4 shows a cross-sectional view of the flange and coupling assembly. 10 Figure 5 shows a view of a three-arm flange section with a locking wedge surface. Explanation of Part References 10. Three or four-arm flange 11. Connection holes 12. Centering invoice 15 13. Positive projection 14. Locking wedge surface 20. Coupling 21. Centering bushing Detailed Description of Find 20 In this detailed description, the preferred three or four-arm flange (10) part which is the subject of the invention is described. the structures that have been established are solely for the purpose of better understanding the subject. It is explained. As can be seen in Figure 1 from the given view of the prior technique and the invention, there are three Critical values ​​after machining of the arm or four-arm flange part (10) The innovation in this invention aims to prevent excessive wall thickness. The subject of the invention is a three or four-arm flange (10) bolted by means of an elastic coupling (20) It is connected to the gearbox. Centering bushings (21) located on the coupling (20) 5 It is mounted into the recesses opened on the flange, thus ensuring centering. The parts are connected via a bolt and nut connection through centering. Cold. Parts produced from flat metal by shaping are thin-walled (<6 by nature of production) It has a structure with a thickness of mm, and the wall thickness remains constant in all cross-sections of the part. Therefore, machining that will occur due to assembly or packaging requirements 10 In these processes, the wall thickness needs to be reduced to even more critical levels, especially in power transmission. Strength is an important consideration in the parts that are responsible for this. The subject of the invention is a precision coupling (20) to the surface of a three or four-arm flange part (10). Chips on the surface of the connecting holes (11) ensure that it sits properly and does not slip. It includes the centering invoice (12) which was opened by removing it. The aforementioned centering 15 on the three or four arm flange piece (10) which serves as a bill When formed, the wall thicknesses are reduced to a critical level. This reduces the strength. It has a negative impact. The centering flange mentioned in the three or four arm flange piece (10) is the subject of the invention. As a result of the indentation that occurred in the connection holes (11) with (12), the wall thickness increased by 20 to eliminate sagging at the joints during cold forming In other words, a reverse positive protrusion (13) is created in the bolt holes. Thus, the centering indentation (12) that occurs at the bottom of the part, It is given as a positive projection on the top of the part. This situation is critical for wall thickness. It prevents it from falling below a certain level. 25 One application of the invention is a wedge formed on the positive projection (13) surfaces. in working environments where the surface (14) is exposed to vibrating and dynamic loads It ensures that the bolts form a more secure connection.

Claims

6 REQUESTS 1. In motor vehicles, rotational movement and power are transferred between the differential and the transmission. By welding it to the driveshaft tube that provides the transmission, on one side the shaft connection while on the other hand, it is connected to the gearbox output by a coupling (20) and this three or four 5 that enable the transmission of power and motion. The arm flange part (10) has the following features:  Precision on the surface of the three or four-arm flange part (10) of the coupling (20). the connecting holes that ensure it sits properly and doesn't slip (11) centering flange opened by removing chips from the surface (12) and  Centering flange (12) and connection holes (11) 10 to eliminate the reduction in wall thickness resulting from the indentation by cold forming in bolt connection areas. the positive protrusion (13) regions formed It includes.

2. A three or four-arm flange piece (10) conforming to Request 1, with the characteristic of being positive 15 Vibrating, structured on the connection hole (11) surface in the protruding (13) regions and fasteners in work environments exposed to dynamic loads Locking wedge surface that enables a secure connection (14) It includes.