RU206278U1 - DRIVE SHAFT WITH CORRUGATED TUBE CONNECTED TO REFLECTOR - Google Patents

Abstract

This utility model relates to components that are designed to protect moving parts of a drive shaft and drive shafts containing these components. The utility model is a drive shaft containing primary and secondary components (10, 20), one of which contains a shaft (40) corresponding to the specified bushing (50), and the other contains a bushing (50) to ensure connection with each other in such a way, that they can provide telescopic movement properties to compensate for the change in distance resulting from the movement of the vehicle axis and to transmit the rotational motion provided by the vehicle engine; splines (51) of the sleeve and splines (41) of the shaft, made corresponding to each other on the outer section of the shaft (40) and the inner surface of the sleeve (50) so that they do not interfere with the indicated properties of telescopic movement, and that the rotational movement of one element is transmitted another, and a plug (60) of components (10, 20); a corrugated tube (90) that is capable of bending during the telescopic movement of said primary and secondary components (10, 20), in which one end is attached to the sleeve (50) by an end connection (UB), and in which the other end is directly connected to a reflector (80), which is configured to close the bearing gap (71) of the central bearing (70), which is configured to support the primary and secondary (10, 20) components. Provides protection from dust and dirt, and seals the drive shafts with a minimum of components. 8 p.p. f-ly, 5 dwg

Description

Technology area

This utility model relates to components that are designed to protect moving parts of a drive shaft and drive shafts containing these components.

Prior art

Drive shafts are drives that receive the rotational motion and power produced by an engine in motor vehicles from an engine or transmission, and which are used to move a vehicle by transmitting said motion to the vehicle's differential. These drive shafts are used in different designs depending on their location under the vehicles. One of these structures is the drive shaft housing, which is supported by a bearing on the vehicle chassis. The group consisting of the bearing and its supporting components is called the center bearing and it is connected to the vehicle.

As a result of the movement of the axles of the vehicle, which occurs depending on the condition of the road, the resulting distance between the differential and the engine or transmission changes. For the drive shaft to perform its task, in addition to the rotational motion, it needs to compensate for this changing net distance, and it also needs to continue to transmit power. For this reason, one of the main parts of the drive shafts is a sleeve-shaped section and the other is a shaft-shaped section designed so that it can translate into the sleeve. The change in length can be compensated for by telescoping the sleeve and shaft. Said bushing and shaft additionally contain threads on their surfaces, which connect them to each other to transmit rotary motion.

Since the drive shafts are located under the vehicles, they are highly exposed to external factors such as dust and dirt. Different components are used to protect the hub and shaft of the drive shafts from external factors. One of these components is a corrugated tube. These corrugated tubes were made to compensate for telescopic movement. In the prior art, one end of the corrugated tube is secured to a sleeve and the corrugated tube is then clamped by a mechanical ring-shaped connector and squeezed around the outside diameter. Thereafter, the additional connector is mounted on the sliding sleeve and the free end of the corrugated tube is then attached to this connector. In this process, the corrugated tube is tightened and attached over the additional connector using a ring-shaped mechanical connector.

This type of connection results in wasted time due to both assembly and assembly with multiple parts, which makes it easier for external factors to appear in the system. In addition, these ring-shaped mechanical couplings as mentioned above are manufactured individually for all types of drive shaft, and the ring-shaped mechanical couplings, which are suitable for one type, cannot be used for another type.

Likewise, the aforementioned center bearing also needs to be protected from external factors, in particular dust and other foreign bodies that act on the bearing section of the center bearing, get into the bearing, and thus impede the rotational movement of the bearing, and as a result, they lead to device failure. ... To protect this section, protective elements called reflectors are used. A deflector is placed in the clearance of the center bearing and protects the bearing. The reflector is generally made of a metal based material, and since the drive shaft is a drive that operates in an open area under the vehicle, it may be deformed due to the impact of stones, gravel, etc., depending on road conditions, and as a result deformation, it loses the ability to prevent foreign bodies from entering the center bearing.

The document with application number 2018/08678 describes a group located in the middle part, having a reflector that is resistant to external factors, in particular, corrosion.

As a result, all the problems mentioned above necessitate the provision of innovation in the relevant area.

Purpose of the utility model

The purpose of this utility model is to eliminate the problems mentioned above and to provide technical innovation in the relevant field.

The purpose of the utility model is to describe the components that are designed to protect the moving parts of the drive shaft and structural elements of the drive shafts containing these components.

Another objective of this utility model is to provide protection and sealing of drive shafts with a minimum of components.

Another purpose of this utility model is to describe a drive shaft that is easier to assemble.

Brief Description of the Present Utility Model

The present utility model is a drive shaft that meets all the purposes mentioned above and whose structure will become clear from the detailed description below, containing primary and secondary components, one of which contains a shaft corresponding to the specified sleeve, and the other contains a sleeve to ensure their connection to each other. with the other so that they can provide telescopic movement properties to compensate for the distance variation resulting from the vehicle axle movements and to transmit the rotational motion provided by the vehicle engine, sleeve splines and shaft splines made corresponding to each other on the outer shaft section and the inner surface of the bushing in such a way that they do not obstruct the indicated properties of telescopic movement, and that the rotational movement of one element is transmitted to the other, and a fork located in the end section of one of the primary and secondary components ... Accordingly, the present invention comprises a corrugated tube that is capable of bending during telescopic movement of said primary and secondary components, one end of which is attached to the sleeve by an end connector, and of which the other end is directly connected to a reflector that is capable of close the bearing clearance of the center bearing, which is configured to support the primary and secondary components.

Another preferred embodiment of the present model provides a reflector connector that connects said reflector to the corrugated tube.

According to another preferred embodiment of the present invention, said reflector connecting element that connects said reflector to the corrugated tube is a tape.

In another preferred embodiment of the present invention, said tape is made of plastic.

According to another preferred embodiment of the present invention, said reflector comprises a mounting surface designed to be connected by a mechanical connecting element.

In another preferred embodiment of the present invention, said reflector is made of polymer.

In another preferred embodiment of the present invention, said reflector and corrugated tube are bonded to each other by vulcanization.

In another preferred embodiment of the present invention, said primary component is a sliding sleeve and said secondary component is a yoke shaft.

In another preferred embodiment of the present invention, said primary component is a sliding sleeve and said secondary component is a sliding fork.

Brief description of graphic materials

FIG. 1 is an illustrative isometric view of an embodiment of a drive shaft of the present invention where the primary component is a sliding sleeve and the secondary component is a sliding fork.

FIG. 1A is an illustrative isometric view of an embodiment of a drive shaft of the present invention where the primary component is a tubular bushing and the secondary component is a yoke shaft.

FIG. 2 is an illustrative cross-sectional view of one embodiment of a drive shaft.

FIG. 3 is an illustrative cross-sectional view of another embodiment of a drive shaft.

FIG. 3A illustrates in detail the region A shown in FIG. 3.

The graphics do not have to be scaled to the original product and some details may have been omitted to clearly describe the utility model. Parts that are substantially identical or that have similar functions are represented by the same reference numerals.

Description of reference numbers shown in the figures

10. Primary component

20. Secondary component

30. Foundation

40. Shaft

41. Shaft splines

50. Bushing

51. The splines of the bushing

60. Fork

61. Fork eye

70. Center bearing

71. Bearing clearance

80. Reflector

81. Mounting extension of the reflector

90. Corrugated tube

UB. End connector

TB. Reflector connector

A. Connection area

Detailed description of the utility model

This detailed description describes the corrugated tube (90) for the drive shafts and the reflector coupling structure (80) in accordance with the present invention in order to further clarify the subject with illustrative examples that do not limit the scope of the invention.

The subject matter of this utility model relates to components that are designed to protect moving parts of a drive shaft and drive shafts containing these components.

The present utility model is a drive shaft for compensating for a change in distance resulting from movements of a vehicle axle and for transmitting a rotational motion provided by a vehicle engine, generally comprising:

primary and secondary components (10, 20), one of which contains a shaft (40) corresponding to the specified sleeve (50), and the other contains a sleeve (50) to ensure connection with each other so that they can provide properties of telescopic movement;

splines of the sleeve (51) and splines of the shaft (41), made corresponding to each other on the outer section of the shaft (40) and the inner surface of the sleeve (50) so that they do not interfere with the indicated properties of telescopic movement, and that the rotational movement of one element is transmitted to another;

a plug (60) located in the end section of one of the primary and secondary components (10, 20);

a corrugated tube (90) that is capable of bending during the telescopic movement of said primary and secondary components (10, 20), in which one end is attached to the sleeve (50) by an end connection (UB), and in which the other end is directly connected to a reflector (80), which is configured to close the bearing gap (71) of the central bearing (70), which is configured to support the primary and secondary (10, 20) components.

Consider FIG. 1 and FIG. 1A, where the drive shaft contains primary and secondary components (10, 20), which are connected in such a way as to transmit torque and telescopically move relative to each other.

FIG. 1, the primary component (10) is configured to form a sliding sleeve, and the secondary element (20) is configured to form a sliding fork. The sliding sleeve contains a base (30) and a shaft (40) that extends vertically from the base (30). The shaft (40) contains a shaft thread (41) that runs vertically along the entire diameter.

The sliding fork contains a bushing (50) that fits to the shaft section (40) of the sliding sleeve, and splines (51) of the bushing that fits to the shaft splines (41) on the inner surface of said bushing (50). A fork (60) is located at the end of the slide fork. The fork (60) transfers the movement to the other fork (60) by means of a cross, which is connected to the lug (61) of the fork.

The specified sliding pipe both transmits rotational movement by means of rotation together with the tubular sleeve, and provides telescopic movement by entering and exiting the sliding fork.

In another embodiment, illustrated in FIG. 1A, the primary component (10) is configured to form a tubular bushing, and the secondary component (20) is configured to form a yoke shaft. The tubular bushing contains a base (30) and a bushing (50) that extends vertically from the base (30). The sleeve (50) contains the splines (51) of the sleeve, which runs vertically along the entire inner diameter.

The yoke shaft contains a shaft (40), which is compatible with the sleeve section (50) of the tubular sleeve, and shaft splines (41), compatible with the splines (51) of the sleeve on the outer surface of said shaft (40). The yoke (60) is located at the end of the yoke shaft. The fork (60) transfers the movement to the other fork (60) by means of a cross, which is connected to the lug (61) of the fork.

The specified fork shaft both transmits rotational motion by rotating together with the tubular sleeve, and provides telescopic movement by entering and exiting the tubular sleeve.

Although the description that follows is made according to the arrangement in which FIG. 1, the primary component (10) is a sliding pipe and the secondary element (20) is a sliding fork, it is possible to accommodate these structures according to the embodiment shown in FIG. 1A.

Consider FIG. 2, on which the shaft (40) passes through the bearing hub of the center bearing (70). After the shaft (40) has passed through the center bearing (70), the bearing clearance (71) remains in the center bearing (70). The deflector (80) is positioned to be compressed in the corresponding clearance (71) of the bearing to prevent the ingress of dust and other similar materials into it.

The corrugated tube (90) is placed on the outer surface of the sleeve (50). An end connector (UB) secures the end of said corrugated tube (90) distal to the center bearing (70) and the end proximal to the yoke (60) to the outer surface of the sleeve (50) by compression. The end connection (UB) mentioned here is preferably a metal clip.

The end of the corrugated tube (90), which is closest to the center bearing (70), is directly connected to the reflector (80). The corrugated tube (90) can be extended in accordance with the telescopic movement of the shaft (40) and sleeve (50).

In an embodiment of the present invention, said corrugated tube (90) and reflector (80) are connected to each other by vulcanization, and in this case, due to the connection made by vulcanization, both the strengthening of the seal and the attachment of the two components to the drive shaft are provided. stage, thereby ensuring ease of installation.

In a preferred embodiment, the reflector (80) is made of a polymeric material. The polymer reflector (80) is advantageous over metallic material because it is elastic and balances the impacts without permanent deformation after being exposed to materials such as stones and gravel, etc., in road conditions.

A reflector made of polymeric material offers significant advantages in terms of both resilience and durability over metallic material, in particular when bonded by vulcanization to a corrugated tube (90). Therefore, the need for a coating on a metal surface, which is necessary for bonding by rubber vulcanization of the metal material, is eliminated.

Consider FIG. 3, in which the corrugated tube (90) is connected directly to the reflector (80) via a reflector connector (TB).

The reflector (80) illustrated in this embodiment comprises a mounting extension (81) as can be seen in FIG. 3A. The mounting extension (81) creates a surface that is suitable for the placement of the reflector connector (TB). The specified surface is located parallel to the cylindrical surface of the sleeve and shaft (50, 40).

In the embodiment illustrated in FIG. 3, the reflector (80) can be made of a polymeric material. The polymer material to be selected improves the seal and extends the service life by being difficult to deform, as already mentioned in the embodiment of FIG. 2.

When the reflector (80) is provided in such a way that it is made of polymeric material, the reflector connector (TB) can be selected in the form of a tape instead of a clip such as a ring, in particular it can be selected in the form of a plastic tape. When the rubber structure of the corrugated tube (90) is placed on the reflector (80), simple plastic strips may be sufficient to provide retention.

The scope of the present invention is defined in the appended claims, and the utility model cannot be limited by the illustrative embodiments mentioned in the detailed description. It is obvious that a person skilled in the art can envisage similar embodiments in light of the descriptions made above, without deviating from the main scope of the legal protection of the present utility model.

Claims (13)

1. A drive shaft to compensate for the change in distance arising from the movement of the axis of the vehicle, and to transmit the rotational motion provided by the engine of the vehicle, comprising primary and secondary components (10, 20), one of which contains a shaft (40) corresponding to the specified sleeve (50), and the other contains a sleeve (50) to ensure connection with each other so that they can provide properties of telescopic movement; splines of the sleeve (51) and splines of the shaft (41), made corresponding to each other on the outer section of the shaft (40) and the inner surface of the sleeve (50) so that they do not interfere with the specified properties of telescopic movement, and that the rotational motion of one element is transmitted to another, and a plug (60) located in the end section of one of the primary and secondary components (10, 20); characterized in that it contains a corrugated tube (90), which is configured to bend during the telescopic movement of the specified primary and secondary components (10, 20), in which one end is attached to the sleeve (40) by means of an end connecting element (UB), and in which the other end is directly connected to the reflector (80), which is configured to close the clearance (71) of the bearing of the central bearing (70), which is configured to support the primary and secondary (10, 20) components. 2. A drive shaft according to claim 1, characterized in that it comprises a reflector connector (TB) that connects the reflector (80) to the corrugated tube (90). 3. The drive shaft according to claim 2, characterized in that the reflector connector (TB) that connects the reflector (80) to the corrugated tube (90) is a tape. 4. The drive shaft of claim 3, wherein said tape is made of plastic. 5. The drive shaft according to any one of paragraphs. 2-4, characterized in that the reflector (80) comprises a mounting surface (81) designed in such a way that the reflector connecting element (TB) can be connected to it. 6. The drive shaft according to any one of paragraphs. 1-5, characterized in that said reflector (80) is made of polymer. 7. The drive shaft according to claim 1 or claim 6, characterized in that the reflector (80) and the corrugated tube (90) are connected to each other by vulcanization. 8. The drive shaft according to any one of paragraphs. 1-7, characterized in that said primary component (10) is a tubular bushing and said secondary component (20) is a yoke shaft. 9. The drive shaft according to any one of paragraphs. 1-7, characterized in that said primary component (10) is a sliding sleeve and said secondary component (20) is a sliding fork.

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