Oil-immersed tensioning wheel

Abstract

The invention relates to an oil-immersed tensioning wheel which is characterized by comprising a riveting plate, the riveting plate is provided with a mandrel in a riveting mode, the mandrel is sleeved with an eccentric shell, the eccentric shell comprises a mounting part and a connecting part, the mounting part and the connecting part are eccentrically arranged, the connecting part is sleeved with a bearing, the mandrel and the mounting part are coaxially arranged, and the bearing is sleeved with a bearing. The bearing and the installation part are eccentrically arranged, a wheel face is arranged on the end face of the outer side of the bearing, a bottom plate is rotationally arranged at the end, opposite to the riveting plate, of the mandrel, a torsional spring is connected between the bottom plate and the eccentric shell, and an oil supplementing channel for lubricating oil to enter the bearing is arranged between the riveting plate and the wheel face and between the bottom plate and the wheel face. The whole tensioning wheel is immersed in engine oil to work, the engine oil plays a lubricating role, lubricating oil is updated in real time, and the service life of the tensioning wheel is prolonged.

Description

Technical Field

[0001] The invention relates to the field of automobile accessories, and in particular to an oil-immersed tension wheel. Background Art

[0002] In the existing tensioner, the lubricating oil used to lubricate the bearing is usually sealed inside. After a long period of use, when the service life of the lubricating oil reaches its limit, the lubricating oil will produce particles, which not only cannot continue to lubricate the bearing, but may even cause wear to the bearing, thus shortening the service life of the tensioner. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art. An oil-immersed tensioner is provided, which is open-type and is immersed in engine oil as a whole for operation. The engine oil plays a lubricating role, and the lubricating oil is updated in real time to extend the service life of the tensioner.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil-immersed tensioner, characterized in that: it includes a riveted plate, the riveted plate is riveted with a core shaft, the core shaft sleeve is provided with an eccentric shell, the eccentric shell includes a mounting portion and a connecting portion, the mounting portion and the connecting portion are eccentrically arranged, the connecting portion is sleeved with a bearing, the core shaft and the mounting portion are coaxially arranged, the bearing and the mounting portion are eccentrically arranged, the outer end surface of the bearing is provided with a wheel surface, the core shaft is rotatable with a bottom plate relative to one end of the riveted plate, a torsion spring is connected between the bottom plate and the eccentric shell, and an oil replenishing channel for lubricating oil to enter the bearing is provided between the riveted plate and the bottom plate and the wheel surface.

[0005] A further configuration of the present invention is: the mounting portion is provided with a torsion spring accommodating cavity, a first torsion spring abutment platform is provided in the torsion spring accommodating cavity, the bottom plate is provided with a second torsion spring abutment platform, the torsion spring is arranged in the torsion spring accommodating cavity, two ends of the torsion spring are respectively abutted against the first torsion spring abutment platform and the second torsion spring abutment platform, when the bottom plate rotates, the torsion spring is deformed, and the bearing sleeve is arranged on the connecting portion.

[0006] A further configuration of the present invention is that the eccentric housing is provided with a first limit platform, the bottom plate is provided with a second limit platform, and the first limit platform is on the displacement path of the second limit platform.

[0007] A further configuration of the present invention is that: the bottom plate is provided with a positioning platform, the first limiting platform is provided with a positioning hole, the positioning platform is provided with a positioning slot, the positioning hole is on the displacement path of the positioning slot, and when the positioning hole and the positioning slot coincide, the positioning hole and the positioning slot are plugged and positioned with a positioning pin.

[0008] The present invention has the above-mentioned characteristics: the oil replenishing channel is arranged, when the tensioning wheel is immersed in the engine oil as a whole, the engine oil can update the lubricating bearing in real time.

[0009] The beneficial effects of the present invention are as follows: the bearing is openly arranged, the tension wheel is immersed in the engine oil as a whole for operation, the engine oil plays a lubricating role, the lubricating oil is updated in real time, and the service life of the tension wheel is extended.

[0010] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0012] Figure 2 It is a schematic diagram of an explosion of an embodiment of the present invention.

[0013] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the present invention.

[0014] Figure 4 A three-dimensional schematic diagram of an eccentric housing according to an embodiment of the present invention Figure 1 .

[0015] Figure 5 A three-dimensional schematic diagram of an eccentric housing according to an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0016] like Figure 1 —— Figure 5The oil-immersed tensioner shown in the figure comprises a riveted plate 1, the riveted plate 1 is riveted with a core shaft 2, the core shaft 2 is sleeved with an eccentric shell 4, the eccentric shell 4 comprises a mounting portion 401 and a connecting portion 402, the mounting portion 401 and the connecting portion 402 are eccentrically arranged, the connecting portion 402 is sleeved with a bearing 3, the core shaft 2 is coaxially arranged with the mounting portion 401, the bearing 3 and the mounting portion 401 are eccentrically arranged, the outer end surface of the bearing 3 is provided with a wheel surface 5, the core shaft 2 is rotated relative to one end of the riveted plate 1 and is provided with a bottom plate 6, a torsion spring 7 is connected between the bottom plate 6 and the eccentric shell 4, an oil replenishment channel 8 for lubricating oil to enter the bearing is provided between the riveted plate 1 and the bottom plate 6 and the wheel surface 5, the mounting portion 401 is provided with a torsion spring accommodating cavity 9, the torsion spring accommodating cavity 9 A first torsion spring abutment platform 10 is provided inside, a second torsion spring abutment platform 11 is provided on the bottom plate 6, the torsion spring 7 is arranged in the torsion spring accommodating cavity 9, and two ends of the torsion spring 7 abut against the first torsion spring abutment platform 10 and the second torsion spring abutment platform 11 respectively. When the bottom plate 6 rotates, the torsion spring 7 is deformed, the eccentric housing 4 is provided with a first limiting platform 12, the bottom plate 6 is provided with a second limiting platform 13, the first limiting platform 12 is on the displacement path of the second limiting platform 13, the bottom plate 6 is provided with a positioning platform 14, the first limiting platform 12 is provided with a positioning hole 15, the positioning platform 14 is provided with a positioning groove 16, the positioning hole 15 is on the displacement path of the positioning groove 16, when the positioning hole 15 coincides with the positioning groove 16, the positioning hole 15 and the positioning groove 16 are plugged and positioned with a positioning pin 17.

Claims

1. An oil-immersed tensioner, characterized in that: It includes a riveted plate, the riveted plate is riveted with a core shaft, the core shaft sleeve is provided with an eccentric shell, the eccentric shell includes a mounting portion and a connecting portion, the mounting portion and the connecting portion are eccentrically arranged, the connecting portion sleeve is provided with a bearing, the core shaft and the mounting portion are coaxially arranged, the bearing and the mounting portion are eccentrically arranged, the outer end surface of the bearing is provided with a wheel surface, the core shaft is rotatable relative to one end of the riveted plate and is provided with a bottom plate, a torsion spring is connected between the bottom plate and the eccentric shell, and an oil replenishing channel for lubricating oil to enter the bearing is provided between the riveted plate and the bottom plate and the wheel surface.

2. The oil-immersed tensioner according to claim 1 is characterized in that: The mounting portion is provided with a torsion spring accommodating cavity, a first torsion spring abutment platform is provided in the torsion spring accommodating cavity, and the bottom plate is provided with a second torsion spring abutment platform. The torsion spring is arranged in the torsion spring accommodating cavity, and two ends of the torsion spring abut against the first torsion spring abutment platform and the second torsion spring abutment platform respectively. When the bottom plate rotates, the torsion spring is deformed.

3. The oil-immersed tensioner according to claim 2 is characterized in that: The eccentric housing is provided with a first limit platform, and the bottom plate is provided with a second limit platform, and the first limit platform is on the displacement path of the second limit platform.

4. The oil-immersed tensioner according to claim 3 is characterized in that: The bottom plate is provided with a positioning platform, the first limiting platform is provided with a positioning hole, the positioning platform is provided with a positioning slot, the positioning hole is on the displacement path of the positioning slot, and when the positioning hole and the positioning slot coincide, the positioning hole and the positioning slot are plugged and positioned with a positioning pin.

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