TWI535945B - A bearing block with a lubricating oil passage - Google Patents

Description

Bearing housing with lubricating oil

The present invention relates to a bearing housing, and more particularly to a bearing housing having a lubricating oil passage.

Lubrication of the transmission element or the support element is very important, and the bearing housing is a kind of support element, which is usually used to support a long axis of rotation. Therefore, in order to make the long shaft run smoothly, it is very important to have sufficient lubrication. For example, Taiwan Announcement No. M355316 In the patent case, a lubricating oil guiding structure for a bearing housing is provided. However, it can be clearly seen from the respective drawings that after the bearing is mounted on the bearing housing, the outer diameter surface of the bearing and the inner peripheral surface of the housing hole of the bearing housing are It can not have a complete abutment, so it will cause the phenomenon of yaw when the bearing is running, which causes wear between the components of the bearing, so the service life of the bearing housing is greatly shortened, so it is necessary to improve the precision.

In view of the above problems, the main object of the present invention is to develop a bearing housing having a lubricating oil passage.
In order to achieve the above object, the present invention is a bearing housing having a lubricating oil passage, comprising: a body having a receiving hole and an oiling hole communicating with the receiving hole, wherein the inner edge of the receiving hole is provided a spiral oil guiding groove is connected to the oil filling hole, the receiving hole has one bearing surface at one end and an opening portion at the other end; the plurality of bearings are arranged in the receiving hole by the opening portion, wherein A bearing system bears against the bearing surface, the bearing is composed of an outer ring, an inner ring and a plurality of rolling elements, and the plurality of rolling elements are disposed between the outer ring and the inner ring, between the inner ring and the outer ring Having a gap, the outer diameter surface of the outer ring abuts against the inner edge surface of the accommodating hole; an oil guiding piece is disposed between the sides of the outer rings of the bearing, the oil guiding piece has An oil guiding hole, one end of the oil guiding hole is in communication with the oil guiding groove, and the other end is connected to the gap between the two bearings; the one end cover is disposed on the opening portion, and the end cover has an abutting surface, the pressing surface Relies to one of the bearings.
Preferably, the oil guiding piece is composed of two C-shaped members and the annular structure is abutted against the side of the outer ring.
Preferably, the pitch of the spiral of the oil guiding groove is equal to the thickness of the bearing.
Preferably, a support piece is disposed between the sides of the inner rings of the two bearings, and the thickness of the support piece is equal to the thickness of the oil guiding piece.
Therefore, the spiral oil guiding groove design of the invention greatly increases the abutting area between the bearing and the receiving hole, so that the bearing can stably operate inside the bearing seat, and can improve the bearing precision and prolong the use. life.

1‧‧‧ body
11‧‧‧ accommodating holes
111‧‧‧ oil guide
112‧‧‧ bearing surface
113‧‧‧ inner edge
12‧‧‧ oil hole
14‧‧‧ openings
2‧‧‧ bearing
21‧‧‧ outer ring
211‧‧‧outer surface
212‧‧‧ side
22‧‧‧ Inner Ring
221‧‧‧ side
23‧‧‧Rolling parts
24‧‧‧ gap
3‧‧‧End cover
31‧‧‧Resistance surface
4‧‧‧ Oil guide
41‧‧‧ Oil guide hole
5‧‧‧Support film
P‧‧‧ pitch
T‧‧‧ thickness

The first figure is an exploded perspective view of the bearing housing with the lubricating oil road of the present invention.
The second figure is a combination view of the bearing housing with the lubricating oil road of the present invention.
The third figure is a cross-sectional view of the bearing housing with the lubricating oil passage of the present invention.
The fourth figure is a cross-sectional view of the bearing seat with the lubricating oil passage of the present invention, and the oil guiding hole and the oil guiding groove are partially enlarged.

Referring to the first to fourth embodiments, a preferred embodiment of the present invention is a bearing housing having a lubricating oil passage, comprising: a body (1) having a receiving hole (11) And an oil injection hole (12) communicating with the receiving hole (11), the inner edge surface (113) of the receiving hole (11) is provided with a spiral oil guiding groove (111), the oil guiding groove (111) Connected to the oil hole (12), the receiving hole (11) has a bearing surface (112) at one end and an opening portion (14) at the other end; the plurality of bearings (2) are connected by the opening portion (14) The device is disposed in the receiving hole (11), wherein a bearing (2) bears against the bearing surface (112) as shown in the third figure, and the bearing (2) is composed of an outer ring (21) and an inner ring ( 22) and a plurality of rolling elements (23), the plurality of rolling elements (23) are disposed between the outer ring (21) and the inner ring (22), between the inner ring (22) and the outer ring (21) Having a gap (24), the outer diameter surface (211) of the outer ring (21) abuts against the inner edge surface (113) of the receiving hole (11); an oil guiding piece (4), is provided For the two bearings (2) Between the side faces (212) of the outer ring (21), the oil guiding piece (4) has an oil guiding hole (41), and one end of the oil guiding hole (41) is connected to the oil guiding groove (111), and the other end is And communicating with the gap (24) of the two bearings (2). In the embodiment, the oil guiding piece (4) is composed of two C-shaped members and the side of the outer ring (21) (212) Abutting; a support piece (5) is disposed between the sides (221) of the inner ring (22) of the bearing (2), and the thickness of the support piece (5) is equal to the thickness of the oil guiding piece (4). The inner ring (22) of the two bearings (2) is supported to bear the load in the axial direction; the end cover (3) is attached to the opening (14), and the end cover (3) has an offset a pressing surface (31), the pressing surface (31) abutting against one of the bearings (2); in order to increase the contact area between the bearing (2) and the inner edge surface (113), the oil guiding groove is The pitch (P) design of the spiral of (111) is equal to the thickness (T) of the bearing (2).
In view of the above, the "industrial availability" of the present invention should be unquestionable. In addition, the feature technology disclosed in the embodiment of the present invention has not been seen in publications before the application, nor has it been disclosed. The use of not only has the fact that the effect is improved as described above, but also has an additional effect that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the present invention are in compliance with the patent regulations, and the application for the invention patent is filed according to law. Please give us a review and grant a patent as soon as possible.
The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.

1‧‧‧ body

11‧‧‧ accommodating holes

111‧‧‧ oil guide

112‧‧‧ bearing surface

113‧‧‧ inner edge

12‧‧‧ oil hole

14‧‧‧ openings

2‧‧‧ bearing

21‧‧‧ outer ring

211‧‧‧outer surface

212‧‧‧ side

22‧‧‧ Inner Ring

221‧‧‧ side

23‧‧‧Rolling parts

24‧‧‧ gap

3‧‧‧End cover

31‧‧‧Resistance surface

4‧‧‧ Oil guide

5‧‧‧Support film

Claims (4)

The bearing seat of the lubricating oil road comprises: a body having a receiving hole and an oil filling hole communicating with the receiving hole, wherein the inner edge surface of the receiving hole is provided with a spiral oil guiding groove, the guiding The oil tank is connected to the oil hole, and the receiving hole has a bearing surface at one end and an opening at the other end; the plurality of bearings are disposed in the receiving hole by the opening, wherein a bearing system bears against the bearing The bearing is composed of an outer ring, an inner ring and a plurality of rolling elements, and the plurality of rolling elements are disposed between the outer ring and the inner ring, and the inner ring and the outer ring have a gap, and the outer ring has a gap The outer diameter surface abuts against the inner edge surface of the accommodating hole; an oil guiding piece is disposed between the sides of the outer rings of the two bearings, the oil guiding piece has an oil guiding hole, and the oil guiding hole One end is in communication with the oil guiding groove, and the other end is in communication with the gap between the two bearings; one end cover is disposed at the opening portion, and the end cover has an abutting surface, and the pressing surface abuts against one of the bearings. The bearing housing with a lubricating oil passage according to claim 1, wherein the oil guiding piece is composed of two C-shaped members and the annular structure is abutted against the side of the outer ring. A bearing block having a lubricating oil passage according to claim 1, wherein a pitch of the spiral of the oil guiding groove is equal to a thickness of the bearing. A bearing block with a lubricating oil passage according to claim 1, wherein a support piece is disposed between the sides of the inner rings of the two bearings, and the thickness of the supporting piece is equal to the thickness of the oil guiding piece.