CN216691758U - Heavy-load pin shaft with novel lubricating oil channel - Google Patents
Heavy-load pin shaft with novel lubricating oil channel Download PDFInfo
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- CN216691758U CN216691758U CN202220169306.XU CN202220169306U CN216691758U CN 216691758 U CN216691758 U CN 216691758U CN 202220169306 U CN202220169306 U CN 202220169306U CN 216691758 U CN216691758 U CN 216691758U
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Abstract
The utility model belongs to the technical field of heavy-load pin shafts, and particularly relates to a heavy-load pin shaft with a novel lubricating oil duct. The oil-saving hinge pin comprises a hinge pin body, wherein a radial oil duct and an axial oil duct are respectively formed in the hinge pin body, a grease nipple is installed at the inlet end of the radial oil duct, the outlet end of the radial oil duct is communicated with the axial oil duct, a waist-shaped oil storage tank is formed in the outer cylindrical surface of the hinge pin body, and the length direction of the waist shape is parallel to the axial oil duct; the oil storage tank and the radial oil duct are concentrically arranged in a penetrating manner; the pin shaft body is externally matched with a steel back bearing for use, so that the length of the groove of the oil storage tank is 1/2-2/3 of the width of the steel back bearing. The oil duct structure consists of a radial oil duct, an axial oil duct and an oil storage tank, and the oil duct structure converts 'point oil outlet' into 'surface oil outlet', so that the risk of blockage is reduced; the oil passage has large output, an oil film is easier to form, and the lubricating effect is good; the problems of dry grinding, abnormal sound and even seizure of the pin shaft and the bearing are solved; and meanwhile, the processing and manufacturing cost is not high.
Description
Technical Field
The utility model belongs to the technical field of heavy-load pin shafts, and particularly relates to a heavy-load pin shaft with a novel lubricating oil duct.
Background
The pin is usually only loaded radially, as is the case when axial loads are simultaneously applied and the static load is greater than 30t, and we refer to it as a heavy-duty pin. The heavy-duty pin shaft generally needs to be used in cooperation with a steel back bearing, the pin shaft rotates in the steel back bearing during working, the pin shaft is required to be well lubricated, an axial oil duct and a radial oil duct are arranged on the commonly used pin shaft, the aperture of the oil duct is generally phi 6 mm-phi 8mm, and under normal conditions, external lubricating grease reaches the contact surface of the pin shaft and the steel back bearing through the axial oil duct and the radial oil duct to play a role in lubrication, and the pin shaft of the oil duct with the structure has the following problems:
(1) the oil outlet of the oil duct is blocked due to serious abrasion and more fragments, and once the oil outlet of the oil duct is blocked and lubrication is not smooth, the phenomena of dry grinding, abnormal sound and even seizure of the pin shaft and the bearing can occur;
(2) and a special oil storage tank is not arranged, the oil output is less, and an oil film is not easily formed.
SUMMERY OF THE UTILITY MODEL
Based on the problems in the background art, the utility model provides the heavy-load pin shaft with the novel lubricating oil channel, and solves the problems that an oil outlet is easy to block, the oil outlet is not smooth and the like.
The specific technical scheme of the utility model is as follows:
a heavy-duty pin shaft with a novel lubricating oil duct comprises a pin shaft body 1, wherein a radial oil duct 11 and an axial oil duct 12 are respectively arranged on the pin shaft body 1, a grease nipple 13 is arranged at the inlet end of the radial oil duct 11, the outlet end of the radial oil duct 11 is communicated with the axial oil duct 12,
a waist-shaped oil storage tank 14 is formed in the outer cylindrical surface of the pin shaft body 1, and the length direction of the waist shape is parallel to the axial oil duct 12; the oil storage tank 14 and the radial oil passage 11 are concentrically arranged in a penetrating manner;
the pin shaft body 1 is externally matched with and sleeved with the steel back bearing 2 for use, so that the length of the groove of the oil storage tank 14 is 1/2-2/3 of the width of the steel back bearing 2.
Further, the width of oil storage tank 14 is 8 ~ 12mm, and the degree of depth is 4 ~ 6 mm.
The utility model has the following beneficial technical effects:
according to the heavy-load pin shaft with the novel lubricating oil channel, the oil channel structure is composed of the radial oil channel, the axial oil channel and the oil storage tank, oil is discharged from a point by the oil channel structure and is converted into oil discharged from a surface, and the risk of blockage is reduced; the oil passage has large output, an oil film is easier to form, and the lubricating effect is good; the problems of dry grinding, abnormal sound and even seizure of the pin shaft and the bearing are solved; and meanwhile, the processing and manufacturing cost is not high.
Drawings
Fig. 1 is a schematic structural view of a heavy-duty pin shaft with a novel lubricating oil duct according to the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is an assembly view of a heavy duty pin and steel backed bearing with a new lubrication channel of the present invention.
Wherein: the bearing comprises a pin shaft body 1, a radial oil duct 11, an axial oil duct 12, a grease nipple 13, an oil storage tank 14 and a steel back bearing 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
Referring to fig. 1-3, a heavy-duty pin shaft with a novel lubricating oil passage comprises a pin shaft body 1, wherein the pin shaft body 1 is respectively provided with a radial oil passage 11 and an axial oil passage 12, a grease nipple 13 is arranged at the inlet end of the radial oil passage 11, the outlet end of the radial oil passage 11 is communicated with the axial oil passage 12,
a waist-shaped oil storage tank 14 is formed in the outer cylindrical surface of the pin shaft body 1, and the length direction of the waist shape is parallel to the axial oil duct 12; the oil storage tank 14 and the radial oil passage 11 are concentrically arranged in a penetrating manner;
the pin shaft body 1 is externally matched with and sleeved with the steel back bearing 2 for use, so that the length of the groove of the oil storage tank 14 is 1/2-2/3 of the width of the steel back bearing 2.
The width of the oil storage tank 14 is 8-12 mm, and the depth is 4-6 mm.
The oil passage structure converts 'point oil outlet' into 'surface oil outlet', so that the risk of blockage is reduced; the oil passage has large output, an oil film is easier to form, and the lubricating effect is good; the problems of dry grinding, abnormal sound and even seizure of the pin shaft and the bearing are solved; and meanwhile, the processing and manufacturing cost is not high. The heavy-load pin shaft is verified in batch in the market, and the using effect is good.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. A heavy-load pin shaft with a novel lubricating oil duct comprises a pin shaft body (1), wherein a radial oil duct (11) and an axial oil duct (12) are respectively arranged on the pin shaft body (1), a grease nipple (13) is arranged at the inlet end of the radial oil duct (11), the outlet end of the radial oil duct (11) is communicated with the axial oil duct (12),
the method is characterized in that: a waist-shaped oil storage tank (14) is formed in the outer cylindrical surface of the pin shaft body (1), and the length direction of the waist shape is parallel to the axial oil duct (12); the oil storage tank (14) and the radial oil passage (11) are concentrically arranged in a penetrating manner;
the hinge pin body (1) is externally matched with and sleeved with a steel back bearing (2) for use, so that the length of the groove of the oil storage tank (14) is 1/2-2/3 of the width of the steel back bearing (2).
2. The heavy-duty pin roll with the novel lubricating oil channel is characterized in that: the width of the oil storage tank (14) is 8-12 mm, and the depth is 4-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169306.XU CN216691758U (en) | 2022-01-21 | 2022-01-21 | Heavy-load pin shaft with novel lubricating oil channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169306.XU CN216691758U (en) | 2022-01-21 | 2022-01-21 | Heavy-load pin shaft with novel lubricating oil channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691758U true CN216691758U (en) | 2022-06-07 |
Family
ID=81820750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220169306.XU Active CN216691758U (en) | 2022-01-21 | 2022-01-21 | Heavy-load pin shaft with novel lubricating oil channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691758U (en) |
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2022
- 2022-01-21 CN CN202220169306.XU patent/CN216691758U/en active Active
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