Transmission shaft intermediate supporting structure, transmission shaft system assembly and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a transmission shaft intermediate supporting structure, a transmission shaft system assembly and a vehicle, the transmission shaft intermediate supporting structure comprises a mounting bracket, the mounting bracket is used for being connected with a vehicle body, and the mounting bracket is provided with a mounting cavity; the elastic buffer bearing seat is arranged in the mounting cavity and is fixedly connected with the mounting bracket; the outer ring of the roller bearing is fixedly arranged in the elastic buffer bearing seat in a penetrating manner, and the inner ring of the roller bearing is fixedly arranged on a transmission shaft in a sleeving manner; and the temperature detection assembly is arranged on the mounting bracket, and the temperature detection assembly is used for detecting the temperature of the outer ring of the roller bearing. According to the invention, the temperature of the bearing can be monitored in real time, so that the lubrication failure of the bearing can be effectively identified and judged, and the maintenance cost of the whole vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a transmission shaft intermediate support structure, a transmission shaft system assembly and a vehicle. Background Art

[0002] In the commercial vehicle sector, when a vehicle has a long wheelbase, to avoid resonance issues caused by a low critical speed due to the excessive length of a single driveshaft assembly, a structure with two or more driveshaft assemblies is required within the driveshaft system. This requires the installation of an intermediate support structure to support the driveshaft. The intermediate support structure's function is to mount the driveshaft on the vehicle frame. The bearing within the intermediate support structure ensures relative rotation between the driveshaft body and the vehicle frame. The inner ring of the bearing is rigidly connected to the driveshaft body and rotates with the driveshaft, transmitting the engine's torque and speed to the drive axle assembly. The outer ring of the bearing is rigidly connected to the bearing seat and is fixed to the vehicle frame crossbar along with the intermediate support assembly. The intermediate support structure ensures the relative stability of the driveshaft. The bearing rollers balance the speed difference between the outer and inner rings, ensuring stable operation of the driveshaft.

[0003] Because of the high speed difference in bearings, the inner ring, outer ring, and rollers need to be lubricated to prevent excessive friction caused by excessive speed, which can lead to transmission failure. Lubrication methods often involve applying a suitable type of grease to the bearing components for protection. Bearing lubrication solutions are divided into two types: maintenance-based and maintenance-free. Maintenance-based bearings are not completely sealed, and the grease will continue to wear out with use, so they need to be relubricated regularly based on mileage. Maintenance-free bearings are subject to attack by harmful substances such as dust and water stains, and there is a certain probability that impurities will be mixed in, causing increased friction in the bearing of the intermediate support of the drive shaft and bearing lubrication failure. Regardless of the type of bearing used, there is no way to identify and judge early lubrication failure. When a serious fault has occurred in the drive shaft, it is often necessary to replace the drive shaft system assembly or other related components, greatly increasing the maintenance cost of the entire vehicle.

[0004] Therefore, a transmission shaft intermediate support structure, a transmission shaft system assembly and a vehicle are needed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a drive shaft intermediate support structure, a drive shaft system assembly and a vehicle, which can monitor the temperature of the bearing in real time, so as to effectively identify and judge the lubrication failure of the bearing, thereby reducing the maintenance cost of the entire vehicle.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The intermediate support structure of the transmission shaft includes:

[0008] A mounting bracket, the mounting bracket is used to be connected to the vehicle body, and the mounting bracket has a mounting cavity;

[0009] an elastic buffer bearing seat, the elastic buffer bearing seat being arranged in the mounting cavity and fixedly connected to the mounting bracket;

[0010] A roller bearing, wherein the outer ring of the roller bearing is fixedly inserted into the elastic buffer bearing seat, and the inner ring of the roller bearing is fixedly sleeved on the transmission shaft;

[0011] A temperature detection component is provided on the mounting bracket, and the temperature detection component is used to detect the temperature of the outer ring of the roller bearing.

[0012] In some embodiments, the elastic buffer bearing seat includes an elastic washer and a bearing seat body, the elastic washer is located between the bearing seat body and the mounting bracket, and the roller bearing is arranged in the bearing seat body.

[0013] In some embodiments, the elastic gasket is made of rubber, and the elastic gasket is integrally vulcanized with the bearing seat body.

[0014] In some embodiments, the mounting bracket includes an upper mounting bracket, a lower mounting bracket and a connecting piece, the upper mounting bracket and the lower mounting bracket are connected by the connecting piece, and the upper mounting bracket and the lower mounting bracket are arranged to form the mounting cavity.

[0015] In some embodiments, the upper mounting bracket has a positioning protrusion on a side facing the lower mounting bracket, and the elastic gasket has a positioning groove on a side facing the upper mounting bracket, and the positioning protrusion is located in the positioning groove.

[0016] In some embodiments, a first mounting hole is provided on the mounting bracket, a second mounting hole opposite to the first mounting hole is provided on the elastic gasket, and the temperature detection component is inserted into the first mounting hole and the second mounting hole.

[0017] In some embodiments, the temperature detection assembly includes a mounting ring and a temperature sensor, the mounting ring is fixedly inserted into the first mounting hole and the second mounting hole, the temperature sensor is fixedly inserted into the mounting ring, and the temperature sensor is in contact with the bearing seat body.

[0018] In some embodiments, two retaining rings are spaced apart on the elastic buffer bearing seat, and the two retaining rings are located on both sides of the roller bearing to limit the movement of the roller bearing along the bearing.

[0019] The transmission shaft system assembly comprises a transmission shaft body and the transmission shaft intermediate support structure as described above, wherein the transmission shaft body is fixedly mounted on the inner ring of the roller bearing of the transmission shaft intermediate support structure.

[0020] A vehicle includes the drive shaft system assembly as described above.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a transmission shaft intermediate support structure, wherein an elastic buffer bearing seat is fixedly provided in the mounting cavity of the mounting bracket, a roller bearing is mounted on the elastic buffer bearing seat, the inner ring of the roller bearing is fixedly sleeved on the transmission shaft, and a temperature detection assembly is provided on the mounting bracket, the temperature detection assembly is used to detect the temperature of the outer ring of the roller bearing. During the rotation of the transmission shaft, the temperature detection assembly detects the temperature of the roller bearing in real time. During the high-speed operation of the transmission shaft, abnormal wear of the roller bearing is often accompanied by high temperature. The temperature of the roller bearing is detected by the temperature detection assembly, thereby monitoring the temperature of the roller bearing for a long time. If the roller bearing shows a continuous slight increase in temperature over a long period of time (for example, 12 hours), it can be determined that the roller bearing is lacking grease, and a reminder to add grease is given. If the temperature of the roller bearing changes sharply within a short period of time (for example, 30 seconds), it is considered that the roller bearing has an unexpected fault and needs to be stopped immediately for professional inspection. Through the above method, the lubrication failure of the bearing can be effectively identified and judged, thereby reducing the maintenance cost of the entire vehicle.

[0023] The present invention provides a drive shaft system assembly, comprising a drive shaft body and the drive shaft intermediate support structure as described above, which can monitor the temperature of the bearing in real time, thereby effectively identifying and judging the lubrication failure of the bearing, thereby reducing the maintenance cost of the entire vehicle.

[0024] The vehicle provided by the present invention includes the drive shaft system assembly as described above, which can monitor the temperature of the bearing in real time, thereby effectively identifying and judging the lubrication failure of the bearing, thereby reducing the maintenance cost of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0026] Figure 1 This is a front view of an intermediate support structure of a transmission shaft according to the present invention;

[0027] Figure 2 It is a cross-sectional view of an intermediate support structure of a transmission shaft of the present invention.

[0028] In the picture:

[0029] 1. Mounting bracket; 11. Upper mounting bracket; 111. Positioning protrusion; 12. Lower mounting bracket; 13. Connector; 2. Elastic buffer bearing seat; 21. Elastic washer; 22. Bearing seat body; 221. Retaining ring; 3. Roller bearing; 4. Temperature detection assembly; 41. Mounting collar; 42. Temperature sensor. DETAILED DESCRIPTION

[0030] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0031] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0032] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0033] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0035] In the process of commercial vehicle operation, in order to effectively identify and judge the lubrication failure of the bearing supporting the drive shaft, thereby reducing the maintenance cost of the entire vehicle, such as Figure 1-Figure 2 As shown, the present invention provides a transmission shaft intermediate support structure, which includes a mounting bracket 1, an elastic buffer bearing seat 2, a roller bearing 3 and a temperature detection assembly 4.

[0036] Mounting bracket 1 is connected to the vehicle body and has a mounting cavity. An elastic buffer bearing seat 2 is disposed within the cavity and is fixedly connected to mounting bracket 1. The outer ring of roller bearing 3 is fixedly inserted into elastic buffer bearing seat 2, while the inner ring of roller bearing 3 is fixedly sleeved onto the drive shaft. A temperature detection assembly 4 is disposed on mounting bracket 1 and is used to detect the temperature of the outer ring of roller bearing 3.

[0037] During the high-speed operation of the transmission shaft, abnormal wear of the roller bearing 3 is often accompanied by high temperature. The temperature of the roller bearing 3 is detected by the temperature detection component 4, so that the temperature of the roller bearing 3 is monitored for a long time. If the temperature of the roller bearing 3 continues to rise slightly for a long time (for example, 12 hours), it can be determined that the roller bearing 3 lacks grease, and a reminder to add grease is given. If the temperature of the roller bearing 3 changes dramatically in a short period of time (for example, 30 seconds), it is considered that the roller bearing 3 has an unexpected fault and needs to be stopped immediately for professional inspection. In this way, the lubrication failure of the bearing can be effectively identified and judged, thereby reducing the maintenance cost of the entire vehicle.

[0038] In some embodiments, the elastic buffer bearing seat 2 includes an elastic washer 21 and a bearing seat body 22. The elastic washer 21 is located between the bearing seat body 22 and the mounting bracket 1, and the roller bearing 3 is disposed in the bearing seat body 22. The elastic washer 21 can buffer and absorb vibrations caused by the rotation of the transmission shaft, thereby ensuring that the roller bearing 3 effectively supports the transmission shaft and ensures the stability of the transmission shaft rotation.

[0039] In some embodiments, the elastic washer 21 is made of rubber and is integrally vulcanized with the bearing housing body 22. The high elasticity of rubber effectively cushions vibrations of the drive shaft. Furthermore, by integrally vulcanizing the elastic washer 21 and the bearing housing body 22, a stable connection between the two bodies is ensured, simplifying installation steps. In other embodiments, the elastic washer 21 and the bearing housing body 22 can be designed as separate components. If damage occurs to either the elastic washer 21 or the bearing housing body 22, only the corresponding replacement is required, ensuring economical maintenance.

[0040] In some embodiments, the mounting bracket 1 includes an upper mounting bracket 11, a lower mounting bracket 12, and a connector 13. The upper mounting bracket 11 and the lower mounting bracket 12 are connected by the connector 13, and the upper mounting bracket 11 and the lower mounting bracket 12 enclose a mounting cavity. Specifically, in this embodiment, the connector 13 is a bolt, and the lower mounting bracket 12 is provided with a threaded hole. The connector 13 passes through the through hole in the upper mounting bracket 11 and is screwed to the threaded hole, thereby achieving assembly of the mounting bracket 1. By adopting the above structure, the installation of the elastic buffer bearing seat 2 is facilitated. After the connector 13 is tightened, the upper mounting bracket 11 and the lower mounting bracket 12 can squeeze the elastic washer 21 to deform, thereby stably fixing the elastic buffer bearing seat 2.

[0041] In some embodiments, the upper mounting bracket 11 has a positioning protrusion 111 on the side facing the lower mounting bracket 12, and the elastic washer 21 has a positioning groove on the side facing the upper mounting bracket 11. The positioning protrusion 111 is located in the positioning groove. The positioning protrusion 111 cooperates with the positioning groove to define the relative position between the upper mounting bracket 11 and the elastic washer 21.

[0042] In some embodiments, a first mounting hole is defined in the mounting bracket 1, and a second mounting hole is defined in the elastic washer 21, which is opposite the first mounting hole. The temperature detection assembly 4 is inserted into the first and second mounting holes. This facilitates installation of the temperature detection assembly 4 and ensures a stable position of the temperature detection assembly 4 relative to the mounting bracket 1, thereby enabling real-time and effective detection of the temperature of the roller bearing 3.

[0043] In some embodiments, the temperature detection assembly 4 includes a mounting collar 41 and a temperature sensor 42. The mounting collar 41 is fixedly inserted into the first and second mounting holes, and the temperature sensor 42 is fixedly inserted into the mounting collar 41, with the temperature sensor 42 in contact with the bearing seat body 22. Specifically, the mounting collar 41 is first pressed into the first and second mounting holes, with the outer diameter of the mounting collar 41 being larger than the diameter of the second mounting hole. During the pressing process, the elastic washer 21 is stretched, and the elastic deformation of the elastic washer 21 ensures a stable clamping of the mounting collar 41. The top of the mounting collar 41 is flush with the upper mounting bracket 11. The temperature sensor 42 is then pressed into the mounting collar 41, with the head of the temperature sensor 42 in contact with the outer circumferential surface of the bearing seat body 22. Because the roller bearing 3 and the bearing seat body 22 are both metal components, and the rubber elastic washer 21 has thermal insulation properties, the temperature detected by the temperature sensor 42 can be determined to be the temperature of the roller bearing 3. This installation method ensures the accuracy of temperature detection while reducing installation difficulty.

[0044] In some embodiments, two retaining rings 221 are spaced apart on the elastic buffer bearing seat 2. The two retaining rings 221 are located on either side of the roller bearing 3 to limit the movement of the roller bearing 3 along the bearing. The retaining rings 221 ensure that the roller bearing 3 is stably positioned on the elastic buffer bearing seat 2.

[0045] This embodiment also provides a drive shaft system assembly, which includes a drive shaft body and the above-mentioned drive shaft intermediate support structure. The drive shaft body is fixedly installed on the inner ring of the roller bearing 3 of the drive shaft intermediate support structure, and can monitor the temperature of the bearing in real time, so as to effectively identify and judge the lubrication failure of the bearing, thereby reducing the maintenance cost of the entire vehicle.

[0046] The present application also provides a vehicle, which includes the above-mentioned drive shaft system assembly, and is capable of monitoring the temperature of the bearing in real time, so as to effectively identify and judge the lubrication failure of the bearing, thereby reducing the maintenance cost of the entire vehicle.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The intermediate support structure of the transmission shaft is characterized by: include: A mounting bracket (1), the mounting bracket (1) being used for connection to a vehicle body, the mounting bracket (1) having a mounting cavity; an elastic buffer bearing seat (2), the elastic buffer bearing seat (2) being arranged in the mounting cavity and fixedly connected to the mounting bracket (1); A roller bearing (3), wherein the outer ring of the roller bearing (3) is fixedly inserted into the elastic buffer bearing seat (2), and the inner ring of the roller bearing (3) is fixedly sleeved on the transmission shaft; A temperature detection component (4) is provided on the mounting bracket (1), and the temperature detection component (4) is used to detect the temperature of the outer ring of the roller bearing (3).

2. The intermediate support structure of the transmission shaft according to claim 1, characterized in that: The elastic buffer bearing seat (2) comprises an elastic washer (21) and a bearing seat body (22), wherein the elastic washer (21) is located between the bearing seat body (22) and the mounting bracket (1), and the roller bearing (3) is arranged in the bearing seat body (22).

3. The intermediate support structure of the transmission shaft according to claim 2, characterized in that: The elastic washer (21) is made of rubber, and the elastic washer (21) and the bearing seat body (22) are integrally vulcanized.

4. The intermediate support structure of the transmission shaft according to claim 2, characterized in that: The mounting bracket (1) comprises an upper mounting bracket (11), a lower mounting bracket (12) and a connecting piece (13); the upper mounting bracket (11) and the lower mounting bracket (12) are connected via the connecting piece (13), and the upper mounting bracket (11) and the lower mounting bracket (12) are arranged to form the mounting cavity.

5. The intermediate support structure of the transmission shaft according to claim 4, characterized in that: The upper mounting bracket (11) has a positioning protrusion (111) on one side facing the lower mounting bracket (12), and the elastic washer (21) has a positioning groove on one side facing the upper mounting bracket (11), and the positioning protrusion (111) is located in the positioning groove.

6. The intermediate support structure of the transmission shaft according to claim 2, characterized in that: A first mounting hole is provided on the mounting bracket (1), a second mounting hole opposite to the first mounting hole is provided on the elastic gasket (21), and the temperature detection component (4) is inserted into the first mounting hole and the second mounting hole.

7. The transmission shaft intermediate support structure according to claim 6, characterized in that: The temperature detection assembly (4) comprises a mounting collar (41) and a temperature sensor (42), wherein the mounting collar (41) is fixedly inserted into the first mounting hole and the second mounting hole, and the temperature sensor (42) is fixedly inserted into the mounting collar (41), and the temperature sensor (42) contacts the bearing seat body (22).

8. The intermediate support structure of the transmission shaft according to claim 1, characterized in that: Two retaining rings (221) are arranged at intervals on the elastic buffer bearing seat (2). The two retaining rings (221) are located on both sides of the roller bearing (3) and are used to limit the movement of the roller bearing (3) along the bearing.

9. The transmission shaft system assembly is characterized in that: It comprises a transmission shaft body and a transmission shaft intermediate support structure as claimed in any one of claims 1 to 8, wherein the transmission shaft body is fixedly mounted on the inner ring of a roller bearing (3) of the transmission shaft intermediate support structure.

10. A vehicle, characterized in that Comprising the drive shaft system assembly as claimed in claim 9.

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