CN220668152U - Stop copper bar for split type water lubrication bearing - Google Patents

Abstract

The utility model relates to the technical field of machining, in particular to a stop copper bar for a split type water lubrication bearing. The locking copper bar comprises a first upper bearing bush locking copper bar, a second upper bearing bush locking copper bar, a first lower bearing bush locking copper bar and a second lower bearing bush locking copper bar; the bottom of the first upper bearing bush stop copper bar is mutually matched with the top of the first lower bearing bush stop copper bar and is arranged in a gap at one side of the upper half bearing bush of the spliced bearing and the lower half bearing bush of the spliced bearing; the bottom of the second upper bearing bush stop copper bar and the bottom of the second lower bearing bush stop copper bar are mutually matched and are arranged in gaps at the other sides of the upper half bearing bush of the spliced bearing and the lower half bearing bush of the spliced bearing. The bearing disclosed by the utility model has the advantages of small bearing disassembly workload, high assembly precision and good bearing structure stability.

Description

Stop copper bar for split type water lubrication bearing

Technical Field

The utility model relates to the technical field of machining, in particular to a stop copper bar for a split type water lubrication bearing.

Background

The propeller shafting on the ship is provided with bearings for bearing and lubricating, so as to protect the rotary motion of the shafting. After the shaft system runs for a long time, the abrasion of the bearing bush of the bearing inner hole is unavoidable, the traditional bearing is generally of an integral structure, the traditional bearing is not split into an upper half and a lower half, the corresponding bearing bush is of an integral structure, and the bearing bush and the bush are in interference fit. When the bearing with the structure is used for replacing the bearing bush, the whole shafting needs to be pulled out from the bushing, and the whole bearing bush and the bushing are in interference fit and are difficult to disassemble, so that the bearing bush needs to be bored by a machine tool; the axle and craftsman axle bush work load of tearing open is very big, and change time is long, influences the normal operating of boats and ships.

In order to solve the technical problems, the spliced bearing is also developed in the field, an upper half structure and a lower half structure which are evenly split are adopted, and the split bearing is matched with the split upper half bearing bush and the split lower half bearing bush for use. When the shaft bushing is replaced, the shaft system is not disassembled, but the upper part and the lower part of the bearing are pushed out of the bearing position, and then the upper part and the lower part of the bearing are respectively adjusted to replace the bearing bushing. The structure has the advantages of small shaft disassembly workload, low assembly precision, easy axial movement of the bearing bush and poor bearing structure stability.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the stop copper bar for the split type water lubrication bearing, which can ensure high assembly precision of the bearing and good structural stability of the bearing.

The utility model provides a stop copper bar for a split type water lubrication bearing, which is used between an upper half bearing bush and a lower half bearing bush of a split type bearing in the bearing, wherein the stop copper bar comprises a first upper bearing bush stop copper bar, a second upper bearing bush stop copper bar, a first lower bearing bush stop copper bar and a second lower bearing bush stop copper bar;

the bottom of the first upper bearing bush stop copper bar is mutually matched with the top of the first lower bearing bush stop copper bar and is arranged in a gap at one side of the upper half bearing bush of the spliced bearing and the lower half bearing bush of the spliced bearing;

the bottom of the second upper bearing bush stop copper bar and the bottom of the second lower bearing bush stop copper bar are mutually matched and are arranged in gaps at the other sides of the upper half bearing bush of the spliced bearing and the lower half bearing bush of the spliced bearing.

More preferably, the first upper bearing bush stop copper bar is provided with a first inclined bottom surface, the first lower bearing bush stop copper bar is provided with a first inclined top surface, the first inclined bottom surface is mutually matched with the first inclined top surface, the first inclined bottom surface is a surface inclined upwards from one end to the other end, and an included angle between the first inclined bottom surface and a horizontal plane is alpha.

More preferably, the second upper bearing bush stop copper bar is provided with a second inclined bottom surface, the second lower bearing bush stop copper bar is provided with a second inclined top surface, the second inclined bottom surface is mutually matched with the second inclined top surface, the second inclined bottom surface is a surface inclined upwards from one end to the other end, and an included angle between the second inclined bottom surface and a horizontal plane is alpha.

Preferably, the top surface or the bottom surface of the stop copper bar, which is used for contacting with the bearing bush, is a radial inclined plane, the radial inclined plane is a plane inclined outwards along the inner side of the stop copper bar, and the included angle between the radial inclined plane and the vertical plane is beta.

More preferably, the inner side surface and the outer side surface of the stop copper bar are arc-shaped surfaces, the radius R1 of the inner side surface of the stop copper bar is larger than the radius of the inner hole of the bearing bush, the radius R2 of the outer side surface of the stop copper bar is matched with the inner hole of the bearing, and the stop copper bar is fixedly connected with the bearing through copper bar fixing bolts penetrating through the inner side surface and the outer side surface of the copper bar.

Preferably, the relation between the thickness H of the stop copper bar and the thickness H of the bearing bush is: h is more than or equal to 1/2 and less than or equal to 2/3H.

More preferably, the α angle is: alpha is less than 1 DEG and 0.1 DEG.

More preferably, the angle β is: alpha is less than 15 and is less than 5 degrees.

The beneficial effects of the utility model are as follows:

1. on the basis of a traditional split joint type bearing, the bushing is designed in an up-down split mode, and is matched with stop copper bars in an up-down split mode, so that the stop copper bars in the up-down split mode are respectively assembled in bearing bush gaps at two sides. The contact surfaces of the upper and lower stop copper bars also adopt axial inclined planes, so that the bearing structure is matched with a lining structure with unequal upper and lower design, and the assembly precision of the bearing structure is ensured. When the shaft bushing is replaced, the shaft system is not disassembled, but the upper part and the lower part of the bearing are pushed out of the bearing position, and then the upper part and the lower part of the bearing are respectively adjusted to replace the bearing bushing. Because the contact surfaces of the split upper and lower bushings are axial inclined planes, when the bearing is assembled, the flange end is pushed inwards, the pushing is tighter, and the assembly precision of the upper and lower parts of the bearing can be ensured; when dismantling the upper and lower two parts of the bearing, when pushing back, as long as the fastening point is crossed, the dismantling will be very light, the dismantling efficiency is ensured, and the structure can effectively prevent the axial float of the bearing bush, and further ensures the structural stability of the bearing.

2. The surface of the bearing bush, which is contacted with the stop copper bar, adopts a radial inclined plane, so that the radial rotation of the bearing bush is prevented, and the structural stability of the bearing is further improved.

Drawings

FIG. 1 is a front view of a bearing of the present utility model;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a B-B cross-sectional view of FIG. 2;

FIG. 4 is a front view of a retaining bar according to the present utility model;

FIG. 5 is a C-C cross-sectional view of FIG. 4;

fig. 6 is a front view of the stop copper bar blank processing tool of the utility model;

FIG. 7 is a D-D sectional view of FIG. 6;

FIG. 8 is a cross-sectional view taken along the direction D-D of FIG. 6 (copper-containing bars);

FIG. 9 is a front view of the stop bar tooling of the present utility model;

FIG. 10 is a sectional view taken along E-E of FIG. 9;

FIG. 11 is a front view of a stop bar tooling (tooling bottom) of the present utility model;

FIG. 12 is a cross-sectional view taken along the F-F direction of FIG. 11;

fig. 13 is a front view of a stop bar tooling (tooling top surface) of the present utility model;

fig. 14 is a sectional view taken along the direction G-G of fig. 13 in accordance with the present utility model.

In the figure: 1. the novel copper plate welding fixture comprises an upper half bushing of a spliced bearing, a lower half bushing of the spliced bearing, 3, an upper half bushing of the spliced bearing, 4, a lower half bushing of the spliced bearing, 5, a first upper bearing bush stop copper bar, 5-1, a first upper bearing bush stop copper bar bottom surface, 5-2, a first upper bearing bush stop copper bar top surface, 5-3, a stop copper bar threaded hole, 6, a second upper bearing bush stop copper bar, 7, a first lower bearing bush stop copper bar, 8, a second lower bearing bush stop copper bar, 9, a copper bar fixing bolt, 10, a fixture body, 10-1, a copper bar embedded groove, 10-2, a first rectangular groove, 10-3, a second rectangular groove, 10-4, an axial center section, 10-5, spot welding positions, 10-6, copper bars, 11, a T-shaped base, 11-1, a first bolt hole, 11-2, a second bolt hole, 12, a T-shaped top seat, 13, a horizontal feed amount adjusting bolt, 14, a first fixing bolt, 15, a spring washer, 16, a second fixing bolt, 17, a first copper plate and 18.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. "plurality" means "two or more".

Example 1

Fig. 1 to 3 show schematic structural views of a retaining bar for a split water lubricated bearing according to the present application, and for convenience of explanation, only the portions related to the present embodiment are shown, and detailed below:

the utility model provides a stop copper bar for split type water lubricated bearing, is including split type bearing upper half bush 1, split type bearing lower half bush 2, split type bearing upper half bush 3 and split type bearing lower half bush 4, split type bearing upper half bush 1 and split type bearing lower half bush 2 mutually amalgamate and form the bearing bush, split type bearing upper half bush 3 and split type bearing lower half bush 4 set up relatively in the bearing bush, closely be provided with the stop copper bar between split type bearing upper half bush 3 and the split type bearing lower half bush 4, split type bearing upper half bush 1 has the third slope bottom surface, split type bearing lower half bush 2 has the third slope top surface, the third slope bottom surface with the mutual adaptation of third slope top surface, the third slope bottom surface is the surface of follow front end to rear end upward sloping, the contained angle of third slope bottom surface and horizontal plane is alpha.

In one embodiment, the stop bars comprise a first upper bushing stop bar 5, a second upper bushing stop bar 6, a first lower bushing stop bar 7 and a second lower bushing stop bar 8;

the first upper bearing bush stop copper bar 5 and the first lower bearing bush stop copper bar 7 are mutually matched and are arranged in a gap at one side of the spliced bearing upper half-shaft bush 3 and the spliced bearing lower half-shaft bush 4;

the second upper bearing bush stop copper bar 6 and the second lower bearing bush stop copper bar 8 are mutually matched and are arranged in gaps at the other sides of the spliced bearing upper half-axle bush 3 and the spliced bearing lower half-axle bush 4;

the first upper bearing bush stop copper bar 5 is provided with a first inclined bottom surface, the first lower bearing bush stop copper bar 7 is provided with a first inclined top surface, the first inclined bottom surface and the first inclined top surface are mutually matched, the first inclined bottom surface is a surface inclined upwards from the front end to the rear end, and the included angle between the first inclined bottom surface and the horizontal plane is alpha;

the second upper bearing bush stop copper bar 6 is provided with a second inclined bottom surface, the second lower bearing bush stop copper bar 8 is provided with a second inclined top surface, the second inclined bottom surface is mutually matched with the second inclined top surface, the second inclined bottom surface is a surface inclined upwards from the front end to the rear end, and the included angle between the second inclined bottom surface and the horizontal plane is alpha.

In one embodiment, the opposite surfaces of the upper half bearing bush 3 and the lower half bearing bush 4 of the spliced bearing are radial inclined planes, the radial inclined planes are inclined surfaces from the inner side of the bearing bush to the outer side of the bearing bush, the included angle between the radial inclined planes and the vertical plane is beta, and the top surface and the bottom surface of the stop copper bar are matched with the radial inclined planes.

Example two

The construction of the retaining copper bar is illustrated by way of example in fig. 4 and 5 with respect to the first upper bushing retaining copper bar 5.

The inner side surface and the outer side surface of the first upper bearing bush stop copper bar 5 are arc-shaped surfaces, the radius R1 of the inner side surface is larger than the radius of the inner hole of the bearing bush, the radius R2 of the outer side surface is matched with the inner hole of the bearing, and the first upper bearing bush stop copper bar 5 is provided with a first upper bearing bush stop copper bar bottom surface 5-1, a first upper bearing bush stop copper bar top surface 5-2 and a stop copper bar threaded hole 5-3 (penetrating through the inner side surface and the outer side surface of the copper bar). The stop copper bar is fixedly connected with the bearing through a copper bar fixing bolt 9 penetrating through the stop copper bar threaded hole 5-3. The copper bar fixing bolt 9 is used for tightening the bushing and stopping the copper bar and is used for pressing the bearing bush. The bottom surface 5-1 of the first upper bearing bush stop copper bar is an axial inclined plane with a high front end and a low rear end, and the top surface 5-2 of the first upper bearing bush stop copper bar is a radial inclined plane with a high inner side and a low outer side.

In this arrangement, the second upper bearing retainer bar 6, the first lower bearing retainer bar 7 and the second lower bearing retainer bar 8 are similar in construction to the first upper bearing retainer bar 5. The top surface, the bottom surface and the inner and outer arc surfaces of the second upper bearing bush stop copper bar 6 are symmetrical along the vertical central axis of the bearing compared with the first upper bearing bush stop copper bar 5; the top surface, the bottom surface and the inner and outer arc surfaces of the first lower bearing bush stop copper bar 7 are symmetrical along the vertical central axis of the bearing compared with the second lower bearing bush stop copper bar 8.

In this embodiment, the relationship between the thickness H of the stop copper bar and the thickness H of the bearing bush is: h is more than or equal to 1/2 and less than or equal to 2/3H. Alpha angle is taken: alpha is less than 1 DEG and 0.1 DEG. And (4) taking the angle beta: alpha is less than 15 DEG and more than 5 deg.

Example III

The embodiment provides a structure of a stop copper bar blank machining tool, and the structure is particularly shown in fig. 6 and 7.

The stop copper bar blank processing tool is used for processing the inner side surface and the outer side surface (inner and outer arc surfaces) of a stop copper bar and comprises a cylindrical tool body 10. The inner hole radius R3 of the tool body 10 is larger than the inner side surface radius R1 of the stop copper bar, and the outer diameter R4 of the tool body 10 is smaller than the outer side surface radius R2 of the stop copper bar. A plurality of pairs of copper bar embedded grooves 10-1 penetrating radially are uniformly distributed on the wall of the tool body 10, the length direction of the copper bar embedded grooves 10-1 is consistent with the axial direction of the tool body 10, each pair of copper bar embedded grooves 10-1 are symmetrically distributed along the axial center line of the tool body 10, and the axial center sections 10-4 of each pair of copper bar embedded grooves 10-1 are mutually parallel and distributed on two sides of the axial center line of the tool body 10. In the embodiment, 2 pairs of copper strips are embedded in the grooves 10-1, and the specific number of the copper strips can be flexibly set according to processing requirements.

Because the structure adopts each pair of copper bar embedded grooves 10-1 to be symmetrically distributed along the axial center line of the tool body 10, and the axial center sections 10-4 of each pair of copper bar embedded grooves 10-1 are mutually parallel and distributed on two sides of the axial center line of the tool body 10. After the copper bar is embedded, the two sides of the copper bar are protruded to be different in height from the inner wall of the tool body 10, and an included angle larger than 0 DEG is formed between the top surface and the bottom surface of the copper bar and the section of the wall of the tool body.

In one embodiment, the copper bar embedded groove 10-1 is a step groove, the copper bar embedded groove 10-1 includes a first rectangular groove 10-2 at the bottom and a second rectangular groove 10-3 at the top, and the width L1 of the first rectangular groove 10-2 is smaller than the width L2 of the second rectangular groove 10-3.

Example IV

The embodiment provides a structure of a stop copper bar processing tool, which is particularly shown in fig. 9 and 10.

The stop copper bar processing tool is used for processing the top surface and the bottom surface of the stop copper bar and comprises any one of a first inclined bottom surface, a first inclined top surface, a second inclined bottom surface and a second inclined top surface. The tool is a double-T-shaped processing tool and comprises a T-shaped base 11 and a T-shaped top seat 12. The middle part of the T-shaped base 11 is provided with a strip-shaped protruding part 11-3, and the top surface of the protruding part 11-3 is an arc-shaped surface matched with the inner side surface of the stop copper bar blank, namely, the radius is R1.

The T-shaped base 11 is provided with two first bolt holes 11-1 on two sides of the protruding portion 11-3 respectively for fixing the T-shaped top base 12. The T-shaped top seat 12 is detachably arranged on any side of the protruding portion 11-3 through the first bolt hole 11-1, the first fixing bolt 14 and the spring washer 15.

The T-shaped top seat 12 is provided with a horizontal feed amount adjusting component. The horizontal feed amount adjusting part in the embodiment adopts a horizontal feed amount adjusting bolt 13, and the head of the horizontal feed amount adjusting bolt 13 is used for tightly propping the top surface or the bottom surface of the stop copper bar blank by matching with the copper plate during processing.

Example five

The embodiment provides a processing method of a first upper bearing bush stop copper bar, which is particularly shown in fig. 8 and 11-14.

The method simplifies the processing flow of the stop copper bar into two steps, which are respectively as follows:

and step 1, processing an arc-shaped surface of the stop copper bar, wherein the arc-shaped surface comprises an arc-shaped inner side surface and an arc-shaped outer side surface.

And 2, processing the top surface and the bottom surface of the stop copper bar, wherein the top surface and the bottom surface are of inclined structures and are divided into radial inclined planes and axial inclined planes. The radial inclined plane is an inclined plane which is inclined upwards or downwards along the inner side of the stop copper bar and the inclined plane and the vertical plane form an included angle beta. The axial inclined plane is an inclined plane which is inclined upwards or downwards along one end of the stop copper bar to the other end, and the inclined plane and the horizontal plane form an included angle alpha.

The specific processing procedure of the step 1 is shown in fig. 8:

the copper bar 10-6 is assembled on a stop copper bar blank processing tool, and an arc-shaped inner side surface and an arc-shaped outer side surface of the stop copper bar are processed by a lathe to form a stop copper bar blank, wherein the radius of the arc-shaped inner side surface of the stop copper bar blank is R1, and the radius of the arc-shaped outer side surface of the stop copper bar blank is R2.

When the copper bar 10-6 is assembled on the stop copper bar blank processing tool, the width L1-a of the copper bar is smaller than the width L1 of the first rectangular groove 10-2, and a is generally smaller than L1 by 0.05-0.2 mm according to the situation. The loading position enables the bottom of the copper bar to protrude out of the inner wall of the tooling body 10, enables the top of the copper bar 10-6 to protrude out of the outer wall of the tooling body 10, and enables the assembly depth of the copper bar 10-6 to meet the machining allowance of the arc inner side face and the arc outer side face of the stop copper bar. The two sides of the copper bar are fixed with the tool body 10 by spot welding, and the spot welding position 10-5 is arranged in the second rectangular groove 10-3. And clamping the stop copper bar blank processing tool after spot welding with the copper bar on a numerical control lathe to process the inner wall R1 and the outer wall R2 of the stop copper bar, and finally obtaining the stop copper bar blank.

The specific processing procedure of the step 2 is as follows:

as shown in fig. 11 and 12, the inner wall of the stop copper bar blank, that is, the arc-shaped inner side surface is placed downward on the top of the protruding portion 11-3, so that the top surface of the protruding portion 11-3 and the inner wall of the stop copper bar blank are mutually matched. A first copper plate 17 is placed above the stop copper bar blank and is matched with a second fixing bolt 16 and a second bolt hole 11-2 to be pressed. Simultaneously, the screw-on amount of the horizontal feed amount adjusting bolt 13 is adjusted at one side of the stop copper bar blank, and the stop copper bar blank is tightly propped by matching with the second copper plate 18.

And then the whole tool is arranged on a numerical control boring and milling machine, and then the bottom surface 5-1 of the first upper bearing bush stop copper bar 5 is processed, and the bottom surface forms an angle alpha with the horizontal.

As shown in fig. 13 and 14, the horizontal feed amount adjusting bolt 13, the first fixing bolt 14 and the spring washer 15 are disassembled, the T-shaped top seat 12 is reinstalled on one side of the machined first upper bearing bush stop copper bar bottom surface 5-1, the stop copper bar is tightly propped against the second copper plate 18 by adopting the horizontal feed amount adjusting bolt 13, and the first upper bearing bush stop copper bar top surface 5-2 is machined on the same numerical control boring and milling machine.

The inner wall R1 and the outer wall R2 of the stop copper bar are machined, and an axial inclined plane (an angle alpha with the horizontal) and a radial inclined plane (an angle beta with the vertical) are formed.

The rest stop copper bars are processed by the same method.

It should be understood that the specific order or hierarchy of steps in the processes disclosed are examples of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (8)

1. A stop copper bar for split type water lubricated bearing, its characterized in that: the locking copper bar comprises a first upper bearing bush locking copper bar (5), a second upper bearing bush locking copper bar (6), a first lower bearing bush locking copper bar (7) and a second lower bearing bush locking copper bar (8);

the bottom of the first upper bearing bush stop copper bar (5) is mutually matched with the top of the first lower bearing bush stop copper bar (7) and is arranged in a gap at one side of the spliced bearing upper half axle bush (3) and the spliced bearing lower half axle bush (4);

the bottom of the second upper bearing bush stop copper bar (6) and the bottom of the second lower bearing bush stop copper bar (8) are mutually matched and are arranged in gaps at the other sides of the spliced bearing upper half bearing bush (3) and the spliced bearing lower half bearing bush (4).

2. The retaining bar for split water lubricated bearings according to claim 1, wherein: the first upper bearing bush stop copper bar (5) is provided with a first inclined bottom surface, the first lower bearing bush stop copper bar (7) is provided with a first inclined top surface, the first inclined bottom surface is mutually matched with the first inclined top surface, the first inclined bottom surface is a surface inclined upwards from one end to the other end, and the included angle between the first inclined bottom surface and the horizontal plane is alpha.

3. The retaining bar for split water lubricated bearings according to claim 1, wherein: the second upper bearing bush stop copper bar (6) is provided with a second inclined bottom surface, the second lower bearing bush stop copper bar (8) is provided with a second inclined top surface, the second inclined bottom surface is mutually matched with the second inclined top surface, the second inclined bottom surface is a surface inclined upwards from one end to the other end, and the included angle between the second inclined bottom surface and the horizontal plane is alpha.

4. The retaining bar for split water lubricated bearings according to claim 1, wherein: the top surface or the bottom surface of the stop copper bar, which is used for being contacted with the bearing bush, is a radial inclined plane, the radial inclined plane is a plane which is inclined outwards along the inner side of the stop copper bar, and the included angle between the radial inclined plane and the vertical plane is beta.

5. The retaining bar for split water lubricated bearings according to claim 1, wherein: the inner side surface and the outer side surface of the stop copper bar are arc-shaped surfaces, the radius R1 of the inner side surface of the stop copper bar is larger than the radius of the inner hole of the bearing bush, the radius R2 of the outer side surface of the stop copper bar is matched with the inner hole of the bearing, and the stop copper bar is fixedly connected with the bearing through copper bar fixing bolts (9) penetrating through the inner side surface and the outer side surface of the copper bar.

6. The retaining bar for split water lubricated bearings according to claim 1, wherein: the relation between the thickness H of the stop copper bar and the thickness H of the bearing bush is as follows: h is more than or equal to 1/2 and less than or equal to 2/3H.

7. A stopper copper strip for split water lubricated bearings according to claim 2 or 3, wherein: the alpha angle is taken as follows: alpha is less than 1 DEG and 0.1 DEG.

8. The retaining bar for split water lubricated bearings according to claim 4, wherein: the beta angle is taken as follows: alpha is less than 15 DEG and more than 5 deg.