Main cone bearing unit structure of commercial vehicle
By introducing a cooling circulation system into the main cone bearing unit of commercial vehicles, the problem of insufficient bearing heat dissipation is solved, active heat dissipation is achieved, lubrication performance and service life are improved, and the safety and stability of commercial vehicles are ensured.
Patent Information
- Application Number
- CN202520481327.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The existing main cone bearing unit for commercial vehicles lacks an effective heat dissipation structure, resulting in excessively high bearing temperatures, which affects lubrication performance and service life, and poses a safety hazard.
A commercial vehicle main cone bearing unit structure was designed, which includes a bearing unit and a cooling circulation system. The system actively dissipates heat through the coolant circulation system and uses a cooling pump, radiator and controller to achieve intelligent regulation, so as to remove the heat of the bearing in time and maintain a low operating temperature.
It effectively reduces bearing temperature, improves lubrication performance, reduces wear, extends service life, and enhances the driving safety and reliability of commercial vehicles.
Smart Images
Figure CN223594772U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to commercial vehicle accessory technical field, more specifically, especially relate to commercial vehicle main taper bearing unit structure. BACKGROUND
[0002] The commercial vehicle main taper bearing unit is a key component for supporting the main taper shaft in the main reducer of the commercial vehicle, and is mainly used for supporting the main taper shaft to ensure that the main taper shaft can maintain correct position and posture during operation, so that the driving cone gear and the driven cone gear can maintain good meshing state, and the effective transmission of power is ensured.
[0003] The existing main taper bearing unit does not have any heat dissipation structure when in use, and cooling is completely dependent on air cooling or natural cooling, so that the cooling effect is poor. A large amount of heat is generated when the bearing unit is running, and the lubricating performance of the bearing will be reduced due to the excessively high temperature, the wear will be aggravated, and even the failure of the bearing can be caused, which seriously affects the driving safety and service life of the commercial vehicle, and the stability is poor and the practicality is not high. INVENTION CONTENTS
[0004] The commercial vehicle main taper bearing unit structure provided by the embodiment of the present disclosure has a bearing unit and a cooling circulation system, the cooling circulation system can provide active heat dissipation effect for the bearing unit, can timely remove the heat generated during the operation of the bearing, effectively reduce the working temperature of the bearing, improve the lubricating performance of the bearing, reduce the wear, and make the bearing unit always maintain a relatively low working temperature. The low working temperature can avoid the failure of the bearing caused by overheating, prolong the service life of the bearing, improve the driving safety and reliability of the commercial vehicle, and has high stability and practicality.
[0005] In a first aspect, the present disclosure provides a commercial vehicle main taper bearing unit structure, which comprises a main taper shaft, a bearing unit and a cooling unit. The bearing unit comprises a bearing inner ring, a bearing outer ring, a tail bearing roller, a head bearing roller and a sealing ring. The bearing inner ring is fixedly installed on the outside of the main taper shaft, and the bearing outer ring is fixedly installed inside the installation housing of the commercial vehicle. The tail bearing roller and the head bearing roller are symmetrically arranged inside the bearing inner ring and the bearing outer ring, and the sealing ring is arranged on both sides of the bearing inner ring and the bearing outer ring. The cooling unit is composed of a liquid supply seat and a cooling circulation system, and the liquid supply seat is fixedly installed on the outside of the bearing outer ring. The cooling circulation system is installed on the frame of the commercial vehicle.
[0006] In at least some embodiments, the cooling circulation system further comprises a cooling liquid tank, a cooling pump, a radiator, connecting pipelines and a controller, the cooling liquid tank is used for storing cooling liquid, the cooling pump is a power source for driving the circulation of the cooling liquid, a pressure difference is generated by mechanical operation to draw the cooling liquid out of the cooling liquid tank and input into the internal passage of the bearing unit after pressurization, the radiator cools the high-temperature cooling liquid flowing out of the internal passage of the bearing unit by air cooling or water cooling, the connecting pipelines are responsible for connecting various components to ensure the smooth circulation of the cooling liquid, and the controller intelligently controls the rotating speed of the cooling pump and the working state of the radiator according to the temperature data fed back by the bearing temperature sensor to realize precise control of the cooling liquid circulation.
[0007] In at least some embodiments, the internal part of the liquid supply seat is respectively provided with a liquid supply channel and a circulation channel, and the liquid supply channel and the circulation channel are respectively provided with a liquid supply interface and a circulation interface.
[0008] In at least some embodiments, the internal part of the bearing outer ring is provided with a cooling channel, and the outer side of the cooling channel is respectively provided with an inlet hole and an outlet hole.
[0009] In at least some embodiments, the inlet hole and the outlet hole are both provided with six holes, and the number of holes is not limited to six, and the number of holes can be increased or decreased.
[0010] Compared with the prior art, the utility model has the advantages of the following beneficial effects:
[0011] The cooling circulation system can provide active heat dissipation for the bearing unit, can timely take away the heat generated by the bearing during operation, effectively reduces the working temperature of the bearing, improves the lubricating performance of the bearing, reduces wear and tear, and keeps the bearing unit at a relatively low working temperature, which can avoid the failure of the bearing due to overheating, prolong the service life of the bearing, improve the driving safety and reliability of the commercial vehicle, and improve the stability and practicality of the device. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic view of the utility model.
[0013] Figure 2 is a structural schematic view of the internal part of the utility model.
[0014] Figure 3 is a structural schematic view of the utility model Figure 2 A part of the utility model.
[0015] Figure 4 is the structure schematic diagram after the bearing unit and the liquid supply seat are disassembled.
[0016] Figure 5 is the structure schematic diagram of another embodiment of the utility model.
[0017] In the figure, the corresponding relationship of component name and figure number is:
[0018] 1, main cone shaft; 2, bearing unit; 201, bearing inner ring; 202, bearing outer ring; 2021, cooling channel; 2022, liquid inlet hole; 2023, liquid outlet hole; 203, tail bearing roller; 204, head bearing roller; 205, sealing ring; 3, liquid supply seat; 301, liquid supply channel; 3011, liquid supply interface; 302, circulation channel; 3021, circulation interface. DETAILED DESCRIPTION
[0019] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.
[0020] As shown in the accompanying Figure 1 to the accompanying Figure 5 :
[0021] Example 1: the utility model provides a commercial vehicle main cone bearing unit structure, including main cone shaft 1, bearing unit 2 and cooling unit, bearing unit 2 includes bearing inner ring 201, bearing outer ring 202, tail bearing roller 203, head bearing roller 204 and sealing ring 205, bearing inner ring 201 is fixedly installed at the outside of main cone shaft 1, and bearing outer ring 202 is fixedly installed at the inside of the installation shell of commercial vehicle, tail bearing roller 203 and head bearing roller 204 are symmetrically arranged in the inside of bearing inner ring 201 and bearing outer ring 202, and sealing ring 205 is arranged at the two sides of bearing inner ring 201 and bearing outer ring 202;Cooling unit is composed of liquid supply seat 3 and cooling circulation system, and liquid supply seat 3 is fixedly installed at the outside of bearing outer ring 202, and cooling circulation system is installed on the frame of commercial vehicle.
[0022] In the embodiment of the present disclosure, the cooling circulation system further comprises a cooling liquid tank, a cooling pump, a radiator, a connecting pipeline and a controller. The cooling liquid tank is used to store cooling liquid. The cooling pump is a power source for driving the circulation of the cooling liquid. By mechanical operation, a pressure difference is generated to draw the cooling liquid out of the cooling liquid tank, and the pressurized cooling liquid is input into the internal passage of the bearing unit 2. The radiator cools the high-temperature cooling liquid flowing out of the internal passage of the bearing unit 2 by air cooling or water cooling. The connecting pipeline is responsible for connecting various components to ensure that the circulation path of the cooling liquid is unobstructed. The controller intelligently controls the rotation speed of the cooling pump and the working state of the radiator according to the temperature data fed back by the bearing temperature sensor, so as to realize precise control of the cooling liquid circulation. When the bearing temperature is too high, the controller increases the rotation speed of the cooling pump to speed up the circulation of the cooling liquid, and at the same time, the working intensity of the radiator is enhanced to improve the cooling efficiency. After the temperature decreases, the operating parameters are automatically adjusted to maintain stable operation of the system.
[0023] In the embodiment of the present disclosure, the inner part of the liquid supply seat 3 is respectively provided with a liquid supply passage 301 and a circulation passage 302, and the liquid supply passage 301 and the circulation passage 302 are respectively provided with a liquid supply interface 3011 and a circulation interface 3021. The liquid supply interface 3011 and the circulation interface 3021 are respectively connected with the cooling pump and the cooling liquid tank. The inner part of the bearing outer ring 202 is provided with a cooling passage 2021, and the outer side of the cooling passage 2021 is respectively provided with an inlet hole 2022 and an outlet hole 2023. The outer part of the inlet hole 2022 and the outlet hole 2023 is respectively communicated with the liquid supply passage 301 and the circulation passage 302. The inlet hole 2022 and the outlet hole 2023 are both provided with six holes, and the number of holes is not limited to six. The number of holes can be increased or decreased. In use, the cooling pump draws the cooling liquid out of the cooling liquid tank, and the pressurized cooling liquid is input into the internal passage of the bearing unit 2. The cooling liquid first enters the internal part of the liquid supply passage 301 through the liquid supply interface 3011, and then the cooling liquid in the internal part of the liquid supply passage 301 can enter the internal part of the cooling passage 2021 through the inlet hole 2022 and circulate in the internal part of the cooling passage 2021. Under the action of pressure, the cooling liquid flowing through the cooling passage 2021 can enter the internal part of the circulation passage 302 through the outlet hole 2023. In this process, the cooling liquid can carry away the heat in the internal part of the bearing unit 2. Thereafter, the cooling liquid entering the internal part of the circulation passage 302 can enter the internal part of the radiator through the circulation interface 3021 to be cooled. The cooled cooling liquid finally enters the internal part of the cooling liquid tank again to realize a complete circulation and stable use.
[0024] The specific use and effect of the embodiment are as follows:
[0025] The cooling circulation system can provide the bearing unit 2 with the effect of active heat dissipation, and timely take away the heat generated by bearing work, the cooling pump draws the cooling liquid from the cooling liquid tank, and inputs the pressurized cooling liquid into the internal passage of the bearing unit 2, the cooling liquid firstly enters the inside of the liquid supply passage 301 through the liquid supply interface 3011, then the cooling liquid in the liquid supply passage 301 can enter the inside of the cooling passage 2021 through the liquid inlet hole 2022, and circulate in the cooling passage 2021, under the action of pressure, the cooling liquid flowing through the cooling passage 2021 can enter the inside of the circulation passage 302 through the liquid outlet hole 2023, in the process, the cooling liquid can take away the heat in the bearing unit 2, and then the cooling liquid entering the inside of the circulation passage 302 can enter the inside of the radiator through the circulation interface 3021 and be cooled, and the cooled cooling liquid finally enters the inside of the cooling liquid tank again, so that a complete circulation is realized.
[0026] In another embodiment, the liquid supply interface 3011 and the circulation interface 3021 are arranged on the side surface of the liquid supply seat 3, so that the bearing unit 2 and the liquid supply seat 3 can be installed on different models of commercial vehicles for use, and the adaptability is high.
[0027] In this paper, the following points need attention:
[0028] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0029] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.
[0030] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. A commercial vehicle main cone bearing unit structure, characterized by: Include: The main cone shaft (1), bearing unit (2) and cooling unit, the bearing unit (2) including bearing inner ring (201), bearing outer ring (202), tail bearing roller (203), head bearing roller (204) and sealing ring (205), the bearing inner ring (201) is fixedly installed on the outside of the main cone shaft (1), and the bearing outer ring (202) is fixedly installed in the installation shell of the commercial vehicle, the tail bearing roller (203) and the head bearing roller (204) are symmetrically arranged in the bearing inner ring (201) and the bearing outer ring (202), and the sealing ring (205) is arranged on both sides of the bearing inner ring (201) and the bearing outer ring (202); the cooling unit is composed of liquid supply seat (3) and cooling circulation system, and the liquid supply seat (3) is fixedly installed on the outside of the bearing outer ring (202), and the cooling circulation system is installed on the frame of the commercial vehicle.
2. The commercial vehicle kingpin bearing unit structure of claim 1, wherein: The cooling circulation system further includes a cooling liquid tank, a cooling pump, a radiator, a connecting pipeline and a controller, the cooling liquid tank is used for storing cooling liquid, the cooling pump is a power source for driving the cooling liquid to circulate, the connecting pipeline is responsible for connecting each component, and the controller intelligently controls the rotating speed of the cooling pump and the working state of the radiator according to the temperature data fed back by the bearing temperature sensor.
3. The commercial vehicle kingpin bearing unit structure of claim 2, wherein: The inside of the liquid supply seat (3) is respectively provided with a liquid supply channel (301) and a circulation channel (302), and the liquid supply channel (301) and the circulation channel (302) are respectively provided with a liquid supply interface (3011) and a circulation interface (3021).
4. The commercial vehicle kingpin bearing unit structure of claim 3, wherein: The inside of the bearing outer ring (202) is provided with a cooling channel (2021), and the outside of the cooling channel (2021) is respectively provided with an inlet hole (2022) and an outlet hole (2023), and the outside of the inlet hole (2022) and the outlet hole (2023) is respectively communicated with the liquid supply channel (301) and the circulation channel (302).
5. The commercial vehicle kingpin bearing unit structure as set forth in claim 4, wherein: The inlet hole (2022) and the outlet hole (2023) are both provided with six, and the number is not limited to six, and the number can be increased or decreased.