CN217603195U

CN217603195U - Bearing seat assembly capable of bearing axial force and radial force

Info

Publication number: CN217603195U
Application number: CN202220890530.8U
Authority: CN
Inventors: 蔡小刚; 蔡小乐
Original assignee: Henan Baosheng Electromechanical Equipment Co ltd
Current assignee: Henan Baosheng Electromechanical Equipment Co ltd
Priority date: 2022-03-24
Filing date: 2022-04-18
Publication date: 2022-10-18
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a can bear bearing frame subassembly of axial force and radial force relates to bearing frame technical field, has solved the problem of the easy damage of prior art well bearing frame effect by the effect of radial force and axial force. The utility model comprises a bearing seat and a special-shaped shaft sleeve, wherein the special-shaped shaft sleeve is rotationally connected in the bearing seat through a bearing group; the bearing group comprises a bearing I and a bearing II, the bearing I and the bearing II are sleeved on the special-shaped shaft sleeve, a locking piece used for tightly pushing the bearing I is arranged on the special-shaped shaft sleeve, and the special-shaped shaft sleeve and the bearing seat are matched to form a limiting structure used for positioning the bearing II. The utility model discloses simple structure, convenient to use adopts bearing I and bearing II to bear axial force and radial force, makes bearing assembly's life increase. The integrated shaft sleeve is adopted, so that the mounting and dismounting are simple, and the axial force and the radial force are conveniently eliminated by matching with the bearing set.

Description

Bearing seat assembly capable of bearing axial force and radial force

Technical Field

The utility model relates to a bearing frame technical field especially indicates a can bear bearing frame subassembly of axial force and radial force.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. The bearing stress and the composite stress condition directly affect the service life of the bearing, and the reasonable bearing installation and compression mode can reduce the composite stress of the bearing. The pre-tightening and anti-rotation structure of the existing bearing is that a gland is directly pressed on an outer ring of the bearing or pressed on the outer ring of the bearing through a wave spring. The first structure has the defects that the gland directly presses the outer ring of the bearing, the bearing can not float freely in the radial direction when working, and therefore, the bearing can be subjected to radial additional force, and the service life of the bearing can be influenced no matter the bearing is subjected to axial force or radial force; the outer ring of the bearing is pressed tightly through the wave spring, the service life of the bearing is prolonged, but the wave spring is easily damaged by friction between the wave spring and the outer ring of the bearing, so that the normal work of the bearing is influenced. One or two bearings are adopted in the existing bearings to eliminate radial force, and the structure easily causes the service life of the bearings to be reduced.

The prior chinese patent publication No. CN207634534U discloses a seal cover bearing and bearing seat assembly, which includes a bearing seat body composed of a first bearing seat and a second bearing seat. The connecting position of the first bearing seat and the second bearing seat is a hollow structure, and the first bearing seat and the second bearing seat are connected to form a hollow structure as a bearing cavity. And a sealing element and a steel sleeve are sequentially arranged outside the bearing cavity, and the steel sleeve is in interference fit with the sealing element. The seal is connected to a rotating shaft passing through the bearing cavity. The bearing assembly adopts the sealing element and the steel sleeve to reduce friction, so that the service life of the bearing seat is prolonged, but the whole bearing is not integrally formed, and the durable effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

Not enough to among the above-mentioned background art, the utility model provides a bearing frame subassembly that can bear axial force and radial force has solved among the prior art problem that the bearing frame received the effect of radial force and axial force and damaged easily.

The technical scheme of the utility model is realized like this: a bearing seat assembly capable of bearing axial force and radial force comprises a bearing seat and a special-shaped shaft sleeve, wherein the special-shaped shaft sleeve is rotatably connected in the bearing seat through a bearing group; the bearing group comprises a bearing I and a bearing II, the bearing I and the bearing II are sleeved on the special-shaped shaft sleeve, a locking piece used for tightly pushing the bearing I is arranged on the special-shaped shaft sleeve, and the special-shaped shaft sleeve and the bearing seat are matched to form a limiting structure used for positioning the bearing II.

Furthermore, the two ends of the inner side of the bearing seat are respectively connected with a framework seal I and a framework seal II, the inner ring of the framework seal I is connected with the jacking piece, and the inner ring of the framework seal II is connected with the special-shaped shaft sleeve.

Furthermore, limit structure includes card solid portion I and card solid portion II, and card solid portion I is the annular structure with heterotypic axle sleeve integrated into one piece structure, and card solid portion II is the annular structure with bearing frame integrated into one piece structure, and bearing II sets up between card solid portion I and card solid portion II.

Furthermore, the inner side of the bearing seat is provided with a tightly-pushing part, and part of the outer ring of the bearing II, which is close to the clamping part I, is matched with the tightly-pushing part.

Furthermore, the end part of the special-shaped shaft sleeve is a connecting part extending out of the bearing seat, and two jacking holes are formed in the connecting part.

Furthermore, the connecting portion are sleeved with an outer ring used for installing a jackscrew, and the jackscrew is matched with the jacking hole.

Furthermore, the included angle between the two jacking holes is 60-80 degrees.

Furthermore, be equipped with the oil filler point on the bearing frame, the synthetic cavity of bearing I, bearing frame, bearing II and heterotypic bush, the oil filler point communicates in with the cavity.

Furthermore, the bearing block is provided with a plurality of connecting holes.

The beneficial effects of the utility model are that: the utility model discloses simple structure, convenient to use adopts bearing I and bearing II to bear axial force and radial force, makes bearing assembly's life increase. The integrated shaft sleeve is adopted, so that the installation and the disassembly are simple, and the axial force and the radial force can be eliminated conveniently by matching with the bearing set. Stop gear and retaining member have increased the stable connection of axle sleeve, bearing and bearing frame, have prolonged the life of bearing frame.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a left side view of the bearing housing of fig. 1.

In the figure: 1. the bearing comprises a bearing seat, 101 clamping parts I, 102 jacking parts, 103 oil filling holes, 104 connecting holes, 2 special-shaped shaft sleeves, 201 clamping parts II, 202 connecting parts, 203 jacking holes, 3 bearings I, 4 bearings II, 5 locking parts, 6 oil seals I,7 oil seals II,8 outer rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, in embodiment 1, a bearing housing assembly capable of bearing an axial force and a radial force includes a bearing housing 1 and a special-shaped shaft sleeve 2, the special-shaped shaft sleeve 2 is rotatably connected in the bearing housing 1 through a bearing set, and the bearing set and the special-shaped shaft sleeve 2 are sequentially sleeved in the bearing housing 1; bearing group includes bearing I3 and bearing II 4, bearing I is radial atress bearing, bearing I3 is self-aligning roller bearing, bearing II is axial atress bearing, bearing II 4 is thrust roller bearing, bearing I3 and bearing II 4 are all established on heterotypic axle sleeve 2, bearing I3 and bearing II 4 are different with the internal diameter, bearing I3's internal diameter is less than bearing II 4's internal diameter, bearing I3's external diameter is greater than bearing II 4's external diameter, bearing I3 and bearing II 4 and 1 optional clearance fit or interference fit of bearing frame, bearing I3 and bearing II 4 adopt interference fit with heterotypic axle sleeve 2 usually. Be equipped with retaining member 5 that is used for top tight bearing I3 on heterotypic axle sleeve 2, retaining member 5 threaded connection is on heterotypic axle sleeve 2, and the screw thread fastening direction is the same with heterotypic axle sleeve 2's direction of rotation, simple structure, connects stably, and convenient to detach and installation. The special-shaped shaft sleeve 2 is matched with the bearing seat 1 to form a limiting structure for positioning the bearing II 4, and the limiting mechanism is used for limiting the bearing II 4 between the special-shaped shaft sleeve 2 and the bearing seat 1, so that the bearing II 4 can bear axial force conveniently.

Embodiment 2, in a bearing frame subassembly that can bear axial force and radial force, the inboard both ends of bearing frame 1 are connected with skeleton seal I6 and skeleton seal II7 respectively, and skeleton seal I6's inner circle is connected with tight piece 5 in top, and skeleton seal II 7's inner circle is connected with special-shaped shaft sleeve 2. Skeleton seal I6 and skeleton seal II7 all are used for protecting the bearing, avoid the direct and air dust contact of bearing, can prevent simultaneously that the lubricating oil on the bearing from flowing out. The framework seal I6 and the framework seal II7 are fixedly connected with the bearing seat 1, and the framework seal I6 and the framework seal II7 do not rotate along with the special-shaped shaft sleeve 2.

The other structures are the same as those of embodiment 1.

Embodiment 3, a bearing block assembly capable of bearing axial force and radial force, comprising a bearing block 1 and a special-shaped shaft sleeve 2, wherein the special-shaped shaft sleeve 2 is rotatably connected in the bearing block 1 through a bearing group, and the bearing group and the special-shaped shaft sleeve 2 are sequentially sleeved in the bearing block 1; bearing group includes bearing I3 and bearing II 4, bearing I is radial atress bearing, bearing I3 is self-aligning roller bearing, bearing II is axial atress bearing, bearing II 4 is thrust roller bearing, bearing I3 and bearing II 4 are all established on heterotypic axle sleeve 2, bearing I3 and bearing II 4 are different with the internal diameter, bearing I3's internal diameter is less than bearing II 4's internal diameter, bearing I3's external diameter is greater than bearing II 4's external diameter, bearing I3 and bearing II 4 and 1 optional clearance fit or interference fit of bearing frame, bearing I3 and bearing II 4 adopt interference fit with heterotypic axle sleeve 2 usually. Be equipped with retaining member 5 that is used for top tight bearing I3 on the heterotypic axle sleeve 2, retaining member 5 with bearing pack joint on heterotypic bearing, simple structure connects stably. The special-shaped shaft sleeve 2 is matched with the bearing seat 1 to form a limiting structure for positioning the bearing II 4, and the limiting mechanism is used for limiting the bearing II 4 between the special-shaped shaft sleeve 2 and the bearing seat 1, so that the bearing II 4 can bear axial force conveniently.

In this embodiment, limit structure includes card portion I101 and card portion II 201 of blocking, and card portion I101 is the annular structure with heterotypic axle sleeve integrated into one piece structure, and card portion II 201 is the annular structure with bearing frame 1 integrated into one piece structure, and bearing II 4 sets up between card portion I101 and card portion II 201, and bearing I3 and bearing II 4 separate through card portion, avoid bearing I3 and bearing II 4 wearing and tearing each other. The clamping part I101 and the clamping part II 201 are used for limiting the bearing II to move left and right, and the bearing II is prevented from being connected unstably to cause damage to the bearing pedestal 1. The inner side of the bearing seat 1 is provided with a tight-pushing part 102, and the partial outer ring of the bearing II 4 close to the clamping part I101 is matched with the tight-pushing part 102. The bearing II is close to the pressing plate outer ring of the clamping part I101 and matched with the jacking part 102, so that the bearing II can eliminate axial stress conveniently.

As shown in fig. 1, in embodiment 4, a bearing block assembly capable of bearing an axial force and a radial force includes a bearing block 1 and a special-shaped shaft sleeve 2, the special-shaped shaft sleeve 2 is rotatably connected in the bearing block 1 through a bearing set, and the bearing set and the special-shaped shaft sleeve 2 are sequentially sleeved in the bearing block 1; bearing group includes bearing I3 and bearing II 4, bearing I is radial atress bearing, bearing I3 is self-aligning roller bearing, bearing II is axial atress bearing, bearing II 4 is thrust roller bearing, bearing I3 and bearing II 4 are all established on heterotypic axle sleeve 2, bearing I3 and bearing II 4 are different with the internal diameter, bearing I3's internal diameter is less than bearing II 4's internal diameter, bearing I3's external diameter is greater than bearing II 4's external diameter, bearing I3 and bearing II 4 and 1 optional clearance fit or interference fit of bearing frame, bearing I3 and bearing II 4 adopt interference fit with heterotypic axle sleeve 2 usually. Be equipped with retaining member 5 that is used for top tight bearing I3 on the heterotypic axle sleeve 2, retaining member 5 with bearing pack joint on heterotypic bearing, simple structure connects stably. The special-shaped shaft sleeve 2 is matched with the bearing seat 1 to form a limiting structure for positioning the bearing II 4, and the limiting mechanism is used for limiting the bearing II 4 between the special-shaped shaft sleeve 2 and the bearing seat 1, so that the bearing II 4 can bear axial force conveniently.

In this embodiment, the two ends of the inner side of the bearing seat 1 are respectively connected with a framework seal I6 and a framework seal II7, the inner ring of the framework seal I6 is connected with the jacking piece 5, and the inner ring of the framework seal II7 is connected with the special-shaped shaft sleeve 2. Skeleton seal I6 and skeleton seal II7 all are used for protecting the bearing, avoid the direct and air dust contact of bearing, can prevent simultaneously that the lubricating oil on the bearing from flowing out. Skeleton seal I6 and skeleton seal II7 and bearing frame 1 fixed connection, and skeleton seal I6 and skeleton seal II7 do not rotate along with heterotypic axle sleeve 2.

In this embodiment, limit structure includes card portion I101 and card portion II 201 of blocking, and card portion I101 is the annular structure who is the integrated into one piece structure with heterotypic axle sleeve, and card portion II 201 is the annular structure who is the integrated into one piece structure with bearing frame 1, and bearing II 4 sets up between card portion I101 and card portion II 201, and bearing I3 and bearing II 4 separate through card portion, avoid bearing I3 and bearing II 4 wearing and tearing each other. The clamping part I101 and the clamping part II 201 are used for limiting the bearing II to move left and right, and the bearing II is prevented from being connected unstably to cause damage to the bearing pedestal 1. The inner side of the bearing seat 1 is provided with a tight-pushing part 102, and the partial outer ring of the bearing II 4 close to the clamping part I101 is matched with the tight-pushing part 102. The bearing II is close to the pressing plate outer ring of the clamping part I101 and matched with the jacking part 102, so that the bearing II can eliminate axial stress conveniently.

Embodiment 5, in a bearing frame assembly capable of bearing axial force and radial force, the two ends of the inner side of a bearing frame 1 are respectively connected with a framework seal I6 and a framework seal II7, the inner ring of the framework seal I6 is connected with a jacking member 5, and the inner ring of the framework seal II7 is connected with a special-shaped shaft sleeve 2. Skeleton seal I6 and skeleton seal II7 all are used for protecting the bearing, avoid the direct and air dust contact of bearing, can prevent simultaneously that the lubricating oil on the bearing from flowing out. The framework seal I6 and the framework seal II7 are fixedly connected with the bearing seat 1, and the framework seal I6 and the framework seal II7 do not rotate along with the special-shaped shaft sleeve 2.

The other structures are the same as those in embodiment 4.

Embodiment 6, a bearing block assembly capable of bearing axial force and radial force, comprising a bearing block 1 and a special-shaped shaft sleeve 2, wherein the special-shaped shaft sleeve 2 is rotatably connected in the bearing block 1 through a bearing group, and the bearing group and the special-shaped shaft sleeve 2 are sequentially sleeved in the bearing block 1; bearing group includes bearing I3 and bearing II 4, bearing I is radial atress bearing, bearing I3 is self-aligning roller bearing, bearing II is axial atress bearing, bearing II 4 is thrust roller bearing, bearing I3 and bearing II 4 are all established on heterotypic axle sleeve 2, bearing I3 and bearing II 4 are different with the internal diameter, bearing I3's internal diameter is less than bearing II 4's internal diameter, bearing I3's external diameter is greater than bearing II 4's external diameter, bearing I3 and bearing II 4 and 1 optional clearance fit or interference fit of bearing frame, bearing I3 and bearing II 4 adopt interference fit with heterotypic axle sleeve 2 usually. Be equipped with retaining member 5 that is used for top tight bearing I3 on the heterotypic axle sleeve 2, retaining member 5 with bearing pack joint on heterotypic bearing, simple structure connects stably. The special-shaped shaft sleeve 2 is matched with the bearing seat 1 to form a limiting structure for positioning the bearing II 4, and the limiting mechanism is used for limiting the bearing II 4 between the special-shaped shaft sleeve 2 and the bearing seat 1, so that the bearing II 4 can bear axial force conveniently.

In this embodiment, the two ends of the inner side of the bearing seat 1 are respectively connected with a framework seal I6 and a framework seal II7, the inner ring of the framework seal I6 is connected with the jacking piece 5, and the inner ring of the framework seal II7 is connected with the special-shaped shaft sleeve 2. Skeleton seal I6 and skeleton seal II7 all are used for protecting the bearing, avoid the direct and air dust contact of bearing, can prevent simultaneously that the lubricating oil on the bearing from flowing out. The framework seal I6 and the framework seal II7 are fixedly connected with the bearing seat 1, and the framework seal I6 and the framework seal II7 do not rotate along with the special-shaped shaft sleeve 2.

In the present embodiment, the end of the special-shaped sleeve 2 is a connecting portion 202 extending out of the bearing seat 1, the connecting portion 202 and the special-shaped sleeve 2 are integrally formed, and two tightening holes 203 are formed in the connecting portion 202. The connecting part 202 is sleeved with an outer ring 8 for mounting a jackscrew, and the jackscrew is matched with the jacking hole 203. The jacking holes are matched with the jacking holes through jackscrews arranged on the outer ring in a penetrating mode, and the included angle between the two jacking holes 203 ranges from 60 degrees to 80 degrees, and is preferably 70 degrees. Adopt 70 contained angle to be convenient for the cooperation of axle sleeve and axle, tight hole 203 in top is the screw hole, wears to establish the jackscrew in the screw hole, through jackscrew tight axle in top, can increase the area of contact of axle and axle sleeve to guarantee the stability that axle and bearing frame subassembly are connected.

Embodiment 7, a bearing seat assembly capable of bearing an axial force and a radial force, comprising a bearing seat 1 and a special-shaped shaft sleeve 2, wherein the special-shaped shaft sleeve 2 is rotatably connected in the bearing seat 1 through a bearing group, and the bearing group and the special-shaped shaft sleeve 2 are sequentially sleeved in the bearing seat 1; bearing group includes bearing I3 and bearing II 4, bearing I is radial atress bearing, bearing I3 is self-aligning roller bearing, bearing II is axial atress bearing, bearing II 4 is thrust roller bearing, bearing I3 and bearing II 4 are all established on heterotypic axle sleeve 2, bearing I3 and bearing II 4 are different with the internal diameter, bearing I3's internal diameter is less than bearing II 4's internal diameter, bearing I3's external diameter is greater than bearing II 4's external diameter, bearing I3 and bearing II 4 and 1 optional clearance fit or interference fit of bearing frame, bearing I3 and bearing II 4 adopt interference fit with heterotypic axle sleeve 2 usually. Be equipped with retaining member 5 that is used for top tight bearing I3 on the heterotypic axle sleeve 2, retaining member 5 threaded connection is on heterotypic axle sleeve 2, and the screw thread fastening direction is the same with the direction of rotation of heterotypic axle sleeve, simple structure, connects stably, and convenient to detach and installation. Heterotypic axle sleeve 2 forms the limit structure who is used for fixing a position bearing II 4 with the cooperation of bearing frame 1, and limit mechanism is used for restricting II 4 of bearing between heterotypic axle sleeve 2 and bearing frame 1, and II 4 bearing axial force of the bearing of being convenient for.

In this embodiment, limit structure includes card solid portion I101 and card solid portion II 201, card solid portion I101 be the loop configuration of structure for being integrated into one piece with heterotypic axle sleeve, card solid portion II 201 be with the bearing frame 1 loop configuration of structure for being integrated into one piece, bearing II 4 sets up between card solid portion I101 and card solid portion II 201, bearing I3 and bearing II 4 separate through card solid portion, avoid bearing I3 and bearing II 4 wearing and tearing each other. The clamping part I101 and the clamping part II 201 are used for limiting the bearing II to move left and right, and the bearing II is prevented from being connected unstably to cause damage to the bearing pedestal 1. The inner side of the bearing seat 1 is provided with a tight-pushing part 102, and part of the outer ring of the bearing II 4 close to the clamping part I101 is matched with the tight-pushing part 102. The bearing II is close to the pressing plate outer ring of the clamping part I101 and matched with the jacking part 102, so that the bearing II can eliminate axial stress conveniently.

In the embodiment, the bearing seat 1 is provided with an oil filling hole 103, the cross section of the oil filling hole 103 is T-shaped, and a hole close to the outer ring of the bearing is sealed, so that the oil filling hole 103 forms an L-shaped oil filling hole 103, which facilitates oil filling, and the oil filling hole 103 is communicated into a cavity formed by the bearing group, the bearing seat 1 and the special-shaped shaft sleeve 2. The oil filling hole 103 is used for filling lubricating oil into the cavity, so that the bearing group is lubricated conveniently. The bearing seat 1 is provided with four connecting holes 104. The connecting holes 104 are uniformly distributed on the outer side of the bearing seat 1, and the connecting holes 104 are used for fixing the bearing seat 1.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing block assembly capable of bearing axial force and radial force is characterized in that: the bearing comprises a bearing seat (1) and a special-shaped shaft sleeve (2), wherein the special-shaped shaft sleeve (2) is rotatably connected in the bearing seat (1) through a bearing group; the bearing group comprises a bearing I (3) and a bearing II (4), the bearing I (3) and the bearing II (4) are all sleeved on the special-shaped shaft sleeve (2), a locking part (5) used for tightly pushing the bearing I (3) is arranged on the special-shaped shaft sleeve (2), and the special-shaped shaft sleeve (2) is matched with the bearing seat (1) to form a limiting structure used for positioning the bearing II (4).

2. The housing assembly of claim 1, wherein the housing assembly is configured to receive axial and radial forces, and further comprising: the bearing seat is characterized in that the two ends of the inner side of the bearing seat (1) are respectively connected with a framework seal I (6) and a framework seal II (7), the inner ring of the framework seal I (6) is connected with the locking piece (5), and the inner ring of the framework seal II (7) is connected with the special-shaped shaft sleeve (2).

3. A bearing housing assembly according to claim 1 or 2, wherein the bearing housing assembly is adapted to withstand axial and radial forces: the limiting structure comprises a clamping portion I (101) and a clamping portion II (201), the clamping portion I (101) is of an annular structure integrally formed with the special-shaped shaft sleeve (2), the clamping portion II (201) is of an annular structure integrally formed with the bearing seat (1), and the bearing II (4) is arranged between the clamping portion I (101) and the clamping portion II (201).

4. A bearing housing assembly according to claim 3, wherein said bearing housing assembly is adapted to withstand axial and radial forces, and further comprising: the inner side of the bearing seat (1) is provided with a tightening part (102), and part of the outer ring of the bearing II (4) close to the clamping part I (101) is matched with the tightening part (102).

5. A bearing housing assembly according to claim 1, 2 or 4 capable of withstanding axial and radial forces, wherein: the connecting part (202) on the special-shaped shaft sleeve (2) extends out of the bearing seat (1), and two tightening holes (203) matched with jackscrews are formed in the connecting part (202).

6. The axial and radial force capable bearing housing assembly of claim 5, wherein: the connecting portion (202) is sleeved with an outer ring (8) used for installing a jackscrew, and the jackscrew is matched with the jacking hole (203).

7. The housing assembly of claim 6, wherein the housing assembly is configured to receive axial and radial forces, and further comprising: the included angle between the two jacking holes (203) is 60-80 degrees.

8. A bearing housing assembly according to claim 1, 4 or 7, wherein the bearing housing assembly is adapted to withstand axial and radial forces: be equipped with oil filler point (103) on bearing frame (1), cavity is made up into to bearing I (3), bearing frame (1), bearing II (4) and heterotypic axle sleeve (2), oil filler point (103) and cavity in-connection.

9. The housing assembly of claim 8, wherein the housing assembly is configured to receive axial and radial forces, and further comprising: and a plurality of connecting holes (104) are formed in the bearing seat (1).