CN108705220B - Bearing shell and manufacturing method thereof - Google Patents
Bearing shell and manufacturing method thereof Download PDFInfo
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- CN108705220B CN108705220B CN201810395845.3A CN201810395845A CN108705220B CN 108705220 B CN108705220 B CN 108705220B CN 201810395845 A CN201810395845 A CN 201810395845A CN 108705220 B CN108705220 B CN 108705220B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
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- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a bearing shell and a manufacturing method thereof, and belongs to the field of marine equipment. After a first bearing seat semi-ring, a first semi-ring-shaped end plate, a first thrust semi-ring, a middle semi-ring, a second thrust semi-ring, a second semi-ring-shaped end plate and a second bearing seat semi-ring are coaxially welded on the two Harvard panels, welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring, the semi-ring-shaped end plate and the thrust semi-ring, and the semi-ring-shaped end plate and the bearing seat semi-ring are welded to obtain a semi-shell of the bearing shell. And connecting and fixing the two half shells obtained by the method to obtain the bearing shell. The whole weight of the bearing shell is reduced, the whole quality of the bearing shell is improved, and the using effect of the bearing shell is ensured.
Description
Technical Field
The invention relates to the field of marine equipment, in particular to a bearing shell and a manufacturing method thereof.
Background
The thrust bearing is one of key devices of a ship propeller shaft propulsion system, and mainly plays a role in transmitting the torque in the forward direction and the reverse direction of the turbine gear unit to the thrust shaft section and the propeller, transmitting the thrust and the pulling force generated by the propeller to a ship body and achieving the effect of enabling the ship to move forwards or backwards. The bearing housing is a part of the thrust bearing and mainly plays a role in bearing the load of the thrust bearing and transferring force. Fig. 1 is a schematic structural view of a conventional bearing housing, and as shown in fig. 1, the conventional bearing housing includes a first housing 1 and a second housing 2 which are connected to each other and have the same structure.
In the manufacturing process of the bearing shell, the first shell 1 and the second shell 2 in the bearing shell are usually obtained by casting, so casting defects such as air holes and slag inclusion often exist in the first shell 1 and the second shell 2, the bearing shell has quality defects, and the normal use of the bearing shell is influenced.
Disclosure of Invention
In order to improve the quality of a bearing shell and ensure that the bearing shell can be normally used, the embodiment of the invention provides a manufacturing method of the bearing shell and the bearing shell. The technical scheme is as follows:
the embodiment of the invention provides a manufacturing method of a bearing shell, which comprises the following steps:
providing two Harvard panels, wherein the two Harvard panels are positioned on the same horizontal plane and are symmetrically arranged;
providing a first bearing seat half ring, a first semi-annular end plate, a first thrust half ring, a middle half ring, a second thrust half ring, a second semi-annular end plate and a second bearing seat half ring, and sequentially welding the first bearing seat half ring, the first semi-annular end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-annular end plate and the second bearing seat half ring on the two Harvard panels so that the first bearing seat half ring, the first semi-annular end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-annular end plate and the second bearing seat half ring extend along the length direction of the Harvard panels;
coaxially welding the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring together in sequence to obtain a semi-shell;
fixedly connecting the half shells together to obtain the bearing shell.
Optionally, the sequentially welding the first bearing seat half ring, the first semi-ring shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring shaped end plate, and the second bearing seat half ring to the two haver panels includes:
welding two ends of the first bearing seat semi-ring on first side surfaces of the two Harvard panels respectively, wherein the first side surfaces of the two Harvard panels are arranged towards the same direction;
welding two ends of the first semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the first semi-annular end plate is abutted against the first bearing seat semi-ring;
welding two ends of the first thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the first thrust semi-ring is abutted against the other side of the first semi-annular end plate;
welding two ends of the middle half ring on first side surfaces of the two Harvard panels respectively, so that one side of the middle half ring is abutted against the other side of the first thrust half ring;
welding two ends of the second thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the second thrust semi-ring is abutted against the other side of the middle semi-ring;
welding two ends of the second semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the second semi-annular end plate is abutted against the other side of the second thrust semi-ring;
and respectively welding two ends of the second bearing seat semi-ring on the first side surfaces of the two Harvard panels, so that one side of the second bearing seat semi-ring is abutted to the other side of the second semi-ring end plate.
Optionally, the manufacturing method further includes:
welding allowance spaces of 2mm are reserved between the first thrust semi-ring and the middle semi-ring and between the middle semi-ring and the second thrust semi-ring respectively, and meanwhile, the assembly gaps between the first semi-ring-shaped end plate and the first thrust semi-ring, between the first thrust semi-ring and the middle semi-ring, between the middle semi-ring and the second thrust semi-ring, and between the second thrust semi-ring and the second semi-ring-shaped end plate are controlled to be 0-1 mm.
Optionally, the method further comprises:
the depth of a groove on the inner side of a welding seam, facing one side of the Harvard panel, between the first thrust semi-ring and the first semi-ring end plate is smaller than the depth of a groove on the outer side of a welding seam, facing away from the Harvard panel, between the first thrust semi-ring and the first semi-ring end plate;
the depth of a groove on the inner side of a welding seam, facing one side of the Harvard panel, between the second thrust half ring and the second semi-annular end plate is smaller than the depth of a groove on the outer side of a welding seam, facing away from one side of the Harvard panel, between the second thrust half ring and the second semi-annular end plate.
Optionally, the coaxially welding together the first bearing seat half ring, the first semi-annular end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-annular end plate, and the second bearing seat half ring in sequence comprises:
welding the welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring respectively;
welding a weld groove between the first semi-annular end plate and the first thrust semi-ring, and welding a weld groove between the second semi-annular end plate and the second thrust semi-ring;
and welding a welding seam groove between the first semi-annular end plate and the first bearing seat semi-ring, and welding a welding seam groove between the second semi-annular end plate and the second bearing seat semi-ring.
Optionally, welding the weld groove between the first half-ring end plate and the first thrust half ring comprises:
welding an inner groove of a welding seam between the first semi-annular end plate and the first thrust semi-ring to a half of the depth of the welding seam;
a support rod perpendicular to the first semi-annular end plate is additionally arranged between the first semi-annular end plate and the first thrust semi-ring;
welding an inner groove of a welding seam between the first semi-annular end plate and the first thrust semi-ring;
and welding an outer groove of a welding seam between the first semi-annular end plate and the first thrust semi-ring.
Optionally, the welding the weld groove between the first half-ring shaped end plate and the first bearing seat half ring comprises:
a plurality of support rods are additionally arranged between the first semi-annular end plate and the first bearing seat semi-ring and between the second semi-annular end plate and the second bearing seat semi-ring;
and respectively welding a welding seam groove between the first semi-annular end plate and the first bearing seat semi-ring and a welding seam groove between the second semi-annular end plate and the second bearing seat semi-ring.
Optionally, the manufacturing method further includes:
before welding operation is carried out on the two Harvard panels, at least one supporting rod is arranged in the length direction of the two Harvard panels, and the supporting rods are parallel to the length direction of the two Harvard panels.
Optionally, the manufacturing method further includes: further comprising:
and before the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring are sequentially welded on the two Harvard panels, welding seam grooves among the Harvard panels, the first bearing seat semi-ring, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring and the second bearing seat semi-ring are subjected to back welding.
The embodiment of the invention provides a bearing shell which is manufactured by the manufacturing method, the bearing shell comprises two same half shells, each half shell comprises two half harpoon panels, a first bearing seat half ring, a first semi-annular end plate, a first thrust half ring, a middle half ring, a second thrust half ring, a second semi-annular end plate and a second bearing seat half ring,
the two Harvard panels are positioned on the same horizontal plane and are symmetrically arranged;
the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring are coaxially fixed on the two Harvard panels in a grounding mode, and the axis of the first bearing seat half ring is parallel to the length direction of the Harvard panels.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: after a first bearing seat semi-ring, a first semi-ring-shaped end plate, a first thrust semi-ring, a middle semi-ring, a second thrust semi-ring, a second semi-ring-shaped end plate and a second bearing seat semi-ring are coaxially welded on the two Harvard panels, welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring, the semi-ring-shaped end plate and the thrust semi-ring, and the semi-ring-shaped end plate and the bearing seat semi-ring are welded to obtain a semi-shell of the bearing shell. And connecting and fixing the two half shells obtained by the method to obtain the bearing shell. The whole weight of the bearing shell is reduced, the whole quality of the bearing shell is improved, and the using effect of the bearing shell is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below,
FIG. 1 is a schematic structural view of a prior art bearing housing;
FIG. 2 is a schematic view of a bearing housing assembly and a method for manufacturing the bearing housing according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for manufacturing a bearing housing according to an embodiment of the present invention;
FIG. 4 is a flow chart of another method for manufacturing a bearing housing according to an embodiment of the present invention;
fig. 5-9 are schematic diagrams illustrating a process for manufacturing a half shell according to an embodiment of the present invention;
FIG. 10 is a flow chart of a welding sequence for half shells provided by an embodiment of the present invention;
FIG. 11 is a schematic illustration of a half shell manufacturing process provided by an embodiment of the present invention;
FIG. 12 is a flowchart illustrating a welding sequence between a first semi-annular end plate and a first thrust semi-ring in accordance with an embodiment of the present invention;
fig. 13-16 are schematic diagrams illustrating a process for manufacturing a half shell according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a conventional bearing housing, and as shown in fig. 1, the conventional bearing housing includes two first housings 1 and two second housings 2 having the same structure, and the two first housings 1 and the second housings 2 are fixedly connected in the bearing housing.
Fig. 2 is a schematic structural diagram of a bearing housing according to an embodiment of the present invention, and as shown in fig. 2, the bearing housing includes two identical half shells 3, each half shell 3 includes two haver panels 301 (not shown), a first bearing seat half-ring 302, a first semi-annular end plate 303, a first thrust half-ring 304, a middle half-ring 305, a second thrust half-ring 306, a second semi-annular end plate 307, and a second bearing seat half-ring 308.
The two haver panels 301 are located on the same horizontal plane and are symmetrically arranged.
The first bearing seat half ring 302, the first semi-annular end plate 303, the first thrust half ring 304, the middle half ring 305, the second thrust half ring 306, the second semi-annular end plate 307 and the second bearing seat half ring 308 are coaxially fixed on the two haver panels 301 in pairs, and the axis of the first bearing seat half ring 302 is parallel to the length direction of the haver panels 301.
By adopting the bearing shell with the split structure, the bearing shell can be connected with each part by welding and other methods, so that the overall quality of the bearing shell is ensured, and the quality problem of the bearing shell easily caused by the bearing shell obtained by integral casting in fig. 1 is avoided.
Optionally, the haver face plate 301, the first bearing seat half ring 302, the first semi-annular end plate 303, the first thrust half ring 304, the middle half ring 305, the second thrust half ring 306, the second semi-annular end plate 307, and the second bearing seat half ring 308 are all made of steel, so as to ensure the quality of the bearing housing.
Fig. 3 is a flowchart of a manufacturing method of a bearing housing according to an embodiment of the present invention, and as shown in fig. 3, the manufacturing method includes:
step S11: two Harvard panels are provided, are positioned on the same horizontal plane and are symmetrically arranged.
Step S12: providing a first bearing seat semi-ring, a first semi-ring-shaped end plate, a first thrust semi-ring, a middle semi-ring, a second thrust semi-ring, a second semi-ring-shaped end plate and a second bearing seat semi-ring, and sequentially welding the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring on two Harvard panels so that the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end.
Step S13: and sequentially and coaxially welding the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring together to obtain a semi-shell.
Step S14: fixedly connecting the half-shells of the haver panels together to obtain the bearing shell.
After a first bearing seat semi-ring, a first semi-ring-shaped end plate, a first thrust semi-ring, a middle semi-ring, a second thrust semi-ring, a second semi-ring-shaped end plate and a second bearing seat semi-ring are coaxially welded on the two Harvard panels, welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring, the semi-ring-shaped end plate and the thrust semi-ring, and the semi-ring-shaped end plate and the bearing seat semi-ring are welded to obtain a semi-shell of the bearing shell. And connecting and fixing the two half shells obtained by the method to obtain the bearing shell. The whole weight of the bearing shell is reduced, the whole quality of the bearing shell is improved, and the using effect of the bearing shell is ensured.
Fig. 4 is a flowchart of another manufacturing method of a bearing housing according to an embodiment of the present invention, and as shown in fig. 4, the manufacturing method may include:
step S21: two Harvard panels are provided, are positioned on the same horizontal plane and are symmetrically arranged.
Specifically, the symmetrically arranged haver panel structure in step S21 is shown in fig. 5, and the two haver panels 301 are symmetrically arranged and located in the same horizontal plane.
Optionally, the preparation method further comprises: at least one supporting rod is arranged in the length direction of the two Harvard panels, and the supporting rods are parallel to the length direction of the two Harvard panels.
The structure of the half shell after the support rods are installed can be as shown in fig. 6, two haversian panels 301 are provided with one support rod 309 along the length direction, the support rods 309 arranged on the haversian panels 301 along the length direction can avoid the haversian panels 301 from being deformed too much in the subsequent process, and the quality of the final product bearing shell is guaranteed.
Alternatively, the support bar 309 may be welded to the haversian panel 301.
Step S22: providing a first bearing seat half ring, a first semi-ring shaped end plate, a first thrust half ring, a middle half ring, a second thrust half ring, a second semi-ring shaped end plate and a second bearing seat half ring. And sequentially welding the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring on the two Harvard panels, so that the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring extend along the length direction of the Harvard panels.
Specifically, step S22 may include:
welding two ends of the first bearing seat semi-ring on first side surfaces of the two Harvard panels respectively, wherein the first side surfaces of the two Harvard panels are arranged towards the same direction;
welding two ends of a first semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the first semi-annular end plate is abutted against the first bearing seat semi-ring;
welding two ends of the first thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the first thrust semi-ring is abutted against the other side of the first semi-annular end plate;
welding two ends of the middle half ring on first side surfaces of the two Harvard panels respectively, so that one side of the middle half ring is abutted against the other side of the first thrust half ring;
welding two ends of a second thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the second thrust semi-ring is abutted against the other side of the middle semi-ring;
welding two ends of a second semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the second semi-annular end plate is abutted against the other side of the second thrust semi-ring;
and respectively welding two ends of the second bearing seat semi-ring on the first side surfaces of the two Harvard panels, so that one side of the second bearing seat semi-ring is abutted to the other side of the second semi-ring end plate.
By adopting the structure, the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring can be welded on the two Harvard panels in sequence, so that the subsequent manufacturing of the bearing shell is facilitated.
Optionally, before the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring are welded on the two haver panels in sequence, sample lines respectively corresponding to the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring can be drawn on the haver panels so as to facilitate the welding positioning of the above structure on the haver panels.
Optionally, step S22 may further include:
welding allowance spaces of 2mm are reserved between the first thrust semi-ring and the middle semi-ring and between the middle semi-ring and the second thrust semi-ring respectively, and meanwhile, the assembly gaps between the first semi-ring-shaped end plate and the first thrust semi-ring, between the first thrust semi-ring and the middle semi-ring, between the middle semi-ring and the second thrust semi-ring, and between the second thrust semi-ring and the second semi-ring-shaped end plate are controlled to be 0-1 mm.
By reserving a certain welding allowance space and an assembly gap, the situation that a welding seam groove between the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the first semi-ring-shaped end plate and the second semi-ring-shaped end plate is excessively shrunk or is not welded fully in the welding process is avoided, and the overall quality of the bearing shell is ensured. Meanwhile, the distance between the outer wall of the first semi-annular end plate and the outer wall of the second semi-annular end plate which are finally obtained can be controlled in a mode of reserving welding allowance space and assembling clearance.
In the embodiment of the invention, the distance between the outer wall of the first semi-annular end plate and the outer wall of the second semi-annular end plate to be obtained is 750mm, and the distance between the outer wall of the first semi-annular end plate and the outer wall of the second semi-annular end plate before actual welding can be controlled to be 755 mm-756 mm after the factors are considered. The distance between the outer wall of the first semi-annular end plate and the outer wall of the second semi-annular end plate which are actually obtained finally is 749-751 mm. The size requirement of the bearing shell is met, and the control is accurate.
Optionally, the weld groove between the above structure and the haversian panel may be back-welded prior to welding the two ends of the first bearing housing half-ring, the first thrust half-ring, the middle half-ring, the second thrust half-ring and the second bearing housing half-ring to the haversian panel, respectively.
The backing weld is used for manually welding a backing weld bead at the root of a weld groove between the structure and the Harvard panel, and is used for preventing the weld groove from angular deformation or burnthrough during subsequent welding. In this embodiment, the backing weld can also be fixed in on the haversian panel with first bearing frame semi-ring, first thrust semi-ring, middle semi-ring, second thrust semi-ring and second bearing frame semi-ring, avoids first bearing frame semi-ring, first thrust semi-ring, middle semi-ring, second thrust semi-ring and second bearing frame semi-ring and haversian panel to produce great welding deformation in follow-up welding process.
As shown in fig. 7, the structural diagram of the half shell after the step S22 is executed, wherein two first bearing seat half rings 302, the first semi-ring shaped end plate 303, the first thrust half ring 304, the middle half ring 305, the second thrust half ring 306, the second semi-ring shaped end plate 307 and the second bearing seat half ring 308 are coaxially fixed on two haver panels 301, and the axis of the first bearing seat half ring 302 is parallel to the length direction of the haver panels 301.
Optionally, the depth of the inside groove of the weld on the side close to the axis of the half ring of the first bearing seat between the two ends of the above structure and the haver panel is greater than the depth of the outside groove of the weld on the side far from the axis of the half ring of the first bearing seat between the two ends of the above structure and the haver panel. Structure can guarantee when will above structure welding to the haversian panel more than adopting, and too big warp deformation can not appear in one side that its axis was kept away from to the haversian panel to guarantee bearing housing's quality. Fig. 8 is a schematic structural view of a weld groove between the middle half ring and the haversian panel, and the weld groove of the other structures and the haversian panel 301 can refer to fig. 8.
Fig. 9 is an enlarged view at a of fig. 8, and as shown in fig. 9, both the angle θ of the inside groove of the weld between the middle half ring 307 and the haversian panel 301 and the angle α of the outside groove of the weld between the middle half ring 307 and the haversian panel 301 may be set to 45 ° to facilitate the welding operation.
In other embodiments of the present invention, θ and α may be set to be the same or different, and the present invention is not limited thereto. And both the range of theta and alpha may be set to 30-60 deg..
Illustratively, the ratio of the depth of the inner groove of the weld between the two ends of the above structure and the haver panel 301 to the depth of the outer groove of the weld between the haver panel 301 may be adjusted to 3:1 or 2:1 according to actual conditions, and the comparison of the present invention is not limited.
Step S23: and sequentially and coaxially welding the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring together to obtain a semi-shell.
Fig. 10 is a flowchart illustrating a welding sequence of half shells according to an embodiment of the present invention, and as shown in fig. 10, step S23 may include:
step S231: and respectively welding the welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring.
And the welding seam bevel between the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring faces to one side far away from the Harvard panel.
Optionally, step S231 further includes:
after welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring, a supporting rod is additionally arranged on the first semi-ring-shaped end plate and the second semi-ring-shaped end plate, and the direction of the supporting rod is perpendicular to the first semi-ring-shaped end plate. The supporting rod can play a supporting role in the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring, and deformation of the bearing shell is reduced.
The structure of the half shell after step S231 is completed may be that, as shown in fig. 11, a support bar 309 is additionally disposed between the first half-ring end plate 303 and the second half-ring end plate 307.
Alternatively, the support bar 309 may be made of channel steel or round steel, which is not limited by the present invention.
Step S232: and welding a weld groove between the first semi-annular end plate and the first thrust semi-ring, and welding a weld groove between the second semi-annular end plate and the second thrust semi-ring.
The depth of a groove on the inner side of a welding seam facing one side of the Harvard panel between the first thrust semi-ring and the first semi-ring end plate is smaller than the depth of a groove on the outer side of a welding seam facing away from the Harvard panel between the first thrust semi-ring and the first semi-ring end plate.
The depth of a groove on the inner side of a welding seam, facing one side of the Harvard panel, between the second thrust half ring and the second semi-ring-shaped end plate is smaller than the depth of a groove on the outer side of a welding seam, facing away from one side of the Harvard panel, between the second thrust half ring and the second semi-ring-shaped end plate.
By adopting the arrangement, when the welding seam groove between the first thrust semi-ring and the first semi-ring end plate and the welding seam groove between the second thrust semi-ring and the second semi-ring end plate are welded, the first thrust semi-ring, the first semi-ring end plate, the second thrust semi-ring and the second semi-ring end plate are prevented from generating overlarge welding deformation, and the quality of the finally obtained bearing shell is ensured.
Fig. 12 is a flowchart illustrating a welding sequence between the first semi-ring-shaped end plate and the first thrust semi-ring according to an embodiment of the present invention, and as shown in fig. 12, step S232 may include:
step S2321: and welding an inner groove of the welding seam between the first semi-annular end plate and the first thrust semi-ring to half of the depth of the welding seam.
The structural diagram of the half shell after the step S2321 is executed is shown in fig. 13, where the inside groove of the weld between the first half ring-shaped end plate 303 and the first thrust half ring 304 has been welded to half of the depth of the weld.
Step S2322: and a support rod perpendicular to the first semi-annular end plate is additionally arranged between the first semi-annular end plate and the second semi-annular end plate.
As shown in fig. 14, a support bar 309 is added between the first semi-annular end plate 303 and the second semi-annular end plate 307 to ensure that the distance between the first semi-annular end plate 303 and the second semi-annular end plate 307 does not change too much.
Step S2323: and welding an inner groove of a welding seam between the first semi-ring-shaped end plate and the first thrust semi-ring.
Step S2324: and welding an outer groove of a welding seam between the first semi-annular end plate and the first thrust semi-ring.
The structural diagram of the half shell after the step S2314 is completed is shown in fig. 15, where the weld groove between the first half ring end plate and the first thrust half ring is welded.
By adopting the method, the welding deformation generated when welding seam bevels between the first thrust semi-ring and the first semi-ring end plate and between the second thrust semi-ring and the second semi-ring end plate can be reduced, the integral quality of the semi-shells can be ensured, and the distance between the first semi-ring end plate and the second semi-ring end plate can be ensured not to be changed too much.
Since the welding process of the weld groove between the second semi-annular end plate and the second thrust semi-ring is the same as the welding process of the weld groove between the first semi-annular end plate and the first thrust semi-ring, the present invention is not described herein again.
Step S233: and welding a welding seam bevel between the first semi-annular end plate and the first bearing seat semi-ring, and welding a welding seam bevel between the second semi-annular end plate and the second bearing seat semi-ring.
Step S233 may include: a plurality of support rods are additionally arranged between the first semi-annular end plate and the first bearing seat semi-ring and between the second semi-annular end plate and the second bearing seat semi-ring.
And respectively welding a welding seam groove between the first semi-annular end plate and the first bearing seat semi-ring and a welding seam groove between the second semi-annular end plate and the second bearing seat semi-ring.
After a plurality of support rods are additionally arranged between the first semi-annular end plate and the first bearing seat semi-ring and between the second semi-annular end plate and the second bearing seat semi-ring, welding seam grooves between the first semi-annular end plate and the first bearing seat semi-ring and between the second semi-annular end plate and the second bearing seat semi-ring are welded. The first bearing seat half ring and the second bearing seat half ring are prevented from generating large deformation during welding, and the quality of the finally manufactured bearing shell is guaranteed.
After step S233 is executed, as shown in fig. 16, a plurality of support rods 309 (only one support rod is shown for convenience of illustration) are additionally arranged between the first semi-ring-shaped end plate 303 and the first bearing seat half ring 302 and between the second semi-ring-shaped end plate 307 and the second bearing seat half ring 308.
The structure is welded according to the sequence from the middle to the two sides, so that the welding groove between the parts can be welded more uniformly.
Alternatively, after the above steps are completed, the support bar 309 on the half casing 3 is detached.
Step S24: fixedly connecting the half-shells of the haver panels together to obtain the bearing shell.
Alternatively, two identical half shells may be fixed by means of bolts or the like, which is not limited by the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A manufacturing method of a bearing shell is characterized by comprising the following steps:
providing two Harvard panels, wherein the two Harvard panels are positioned on the same horizontal plane and are symmetrically arranged;
providing a first bearing seat semi-ring, a first semi-ring end plate, a first thrust semi-ring, a middle semi-ring, a second thrust semi-ring, a second semi-ring end plate and a second bearing seat semi-ring, and sequentially welding the first bearing seat semi-ring, the first semi-ring end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring end plate and the second bearing seat semi-ring on the two Harvard panels,
causing the first bearing seat half ring, the first semi-annular end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-annular end plate, and the second bearing seat half ring to extend along a length direction of the haversian panel;
coaxially welding the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring together in sequence to obtain a semi-shell; the depth of a groove on the inner side of a welding seam, facing one side of the Harvard panel, between the first thrust semi-ring and the first semi-ring end plate is smaller than the depth of a groove on the outer side of a welding seam, facing away from the Harvard panel, between the first thrust semi-ring and the first semi-ring end plate;
the depth of a groove on the inner side of a welding seam, facing one side of the Harvard panel, between the second thrust half ring and the second semi-annular end plate is smaller than the depth of a groove on the outer side of a welding seam, facing away from one side of the Harvard panel, between the second thrust half ring and the second semi-annular end plate;
the coaxial welding together in proper order with first bearing frame semi-ring, first semi-annular end plate, first thrust semi-ring, middle semi-ring, second thrust semi-ring, second semi-annular end plate and second bearing frame semi-ring includes:
welding the welding seam grooves among the first thrust semi-ring, the middle semi-ring and the second thrust semi-ring respectively,
welding an inner groove of a welding seam between the first semi-annular end plate and the first thrust semi-ring to a half of the depth of the welding seam, adding a support rod perpendicular to the first semi-annular end plate between the first semi-annular end plate and the first thrust semi-ring, fully welding the inner groove of the welding seam between the first semi-annular end plate and the first thrust semi-ring, and fully welding an outer groove of the welding seam between the first semi-annular end plate and the first thrust semi-ring;
welding a welding seam groove between the second semi-annular end plate and the second thrust semi-ring,
welding a weld groove between the first semi-annular end plate and the first bearing seat semi-ring, and welding a weld groove between the second semi-annular end plate and the second bearing seat semi-ring;
fixedly connecting the half shells together to obtain the bearing shell.
2. The method of manufacturing of claim 1, wherein said sequentially welding said first bearing seat half ring, said first semi-annular end plate, said first thrust half ring, said middle half ring, said second thrust half ring, said second semi-annular end plate, and said second bearing seat half ring to two said haver panels comprises:
welding two ends of the first bearing seat semi-ring on first side surfaces of the two Harvard panels respectively, wherein the first side surfaces of the two Harvard panels are arranged towards the same direction;
welding two ends of the first semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the first semi-annular end plate is abutted against the first bearing seat semi-ring;
welding two ends of the first thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the first thrust semi-ring is abutted against the other side of the first semi-annular end plate;
welding two ends of the middle half ring on first side surfaces of the two Harvard panels respectively, so that one side of the middle half ring is abutted against the other side of the first thrust half ring;
welding two ends of the second thrust semi-ring on first side surfaces of the two Harvard panels respectively, so that one side of the second thrust semi-ring is abutted against the other side of the middle semi-ring;
welding two ends of the second semi-annular end plate on first side surfaces of the two Harvard panels respectively, so that one side of the second semi-annular end plate is abutted against the other side of the second thrust semi-ring;
and respectively welding two ends of the second bearing seat semi-ring on the first side surfaces of the two Harvard panels, so that one side of the second bearing seat semi-ring is abutted to the other side of the second semi-ring end plate.
3. The method of manufacturing of claim 1, further comprising:
welding allowance spaces of 2mm are reserved between the first thrust semi-ring and the middle semi-ring and between the middle semi-ring and the second thrust semi-ring respectively, and meanwhile, the assembly gaps between the first semi-ring-shaped end plate and the first thrust semi-ring, between the first thrust semi-ring and the middle semi-ring, between the middle semi-ring and the second thrust semi-ring, and between the second thrust semi-ring and the second semi-ring-shaped end plate are controlled to be 0-1 mm.
4. The method of manufacturing of claim 1, wherein said welding the weld groove between the first half-ring end plate and the first bearing seat half-ring comprises:
a plurality of support rods are additionally arranged between the first semi-annular end plate and the first bearing seat semi-ring and between the second semi-annular end plate and the second bearing seat semi-ring;
and respectively welding a welding seam groove between the first semi-annular end plate and the first bearing seat semi-ring and a welding seam groove between the second semi-annular end plate and the second bearing seat semi-ring.
5. The production method according to any one of claims 1 to 3, further comprising:
before welding operation is carried out on the two Harvard panels, at least one supporting rod is arranged in the length direction of the two Harvard panels, and the supporting rods are parallel to the length direction of the two Harvard panels.
6. The production method according to any one of claims 1 to 3, further comprising: further comprising:
and before the first bearing seat semi-ring, the first semi-ring-shaped end plate, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring, the second semi-ring-shaped end plate and the second bearing seat semi-ring are sequentially welded on the two Harvard panels, welding seam grooves among the Harvard panels, the first bearing seat semi-ring, the first thrust semi-ring, the middle semi-ring, the second thrust semi-ring and the second bearing seat semi-ring are subjected to back welding.
7. A bearing housing produced by the production method according to any one of claims 1 to 6, wherein the bearing housing comprises two identical half shells each comprising two half-shells, a first bearing half-ring, a first semi-annular end plate, a first thrust half-ring, a middle half-ring, a second thrust half-ring, a second semi-annular end plate, and a second bearing half-ring,
the two Harvard panels are positioned on the same horizontal plane and are symmetrically arranged;
the first bearing seat half ring, the first semi-ring-shaped end plate, the first thrust half ring, the middle half ring, the second thrust half ring, the second semi-ring-shaped end plate and the second bearing seat half ring are coaxially fixed on the two Harvard panels in a grounding mode, and the axis of the first bearing seat half ring is parallel to the length direction of the Harvard panels.
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| CN201810395845.3A CN108705220B (en) | 2018-04-27 | 2018-04-27 | Bearing shell and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395845.3A CN108705220B (en) | 2018-04-27 | 2018-04-27 | Bearing shell and manufacturing method thereof |
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| CN108705220A CN108705220A (en) | 2018-10-26 |
| CN108705220B true CN108705220B (en) | 2021-05-11 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288895A (en) * | 1976-11-10 | 1981-09-15 | The Glacier Metal Company, Limited | Bearings |
| JPS5754720A (en) * | 1980-09-17 | 1982-04-01 | Toyota Motor Corp | Bearing and manufacturing method thereof |
| US4644624A (en) * | 1983-07-21 | 1987-02-24 | Federal-Mogul Corporation | Method for manufacturing a flanged half bearing |
| CN1687600A (en) * | 2005-04-29 | 2005-10-26 | 四川工程职业技术学院 | All welded steel structured bearing seat of blower fan water-cooling type in large-scale power station, and manufacturing method thereof |
| CN201209630Y (en) * | 2008-06-17 | 2009-03-18 | 王登科 | Rolling bearing seat manufactured by welding process |
| CN101392801A (en) * | 2008-06-17 | 2009-03-25 | 王登科 | Method for manufacturing rolling bearing seat by adopting welding process |
| CN201771980U (en) * | 2010-08-26 | 2011-03-23 | 北京中冶设备研究设计总院有限公司 | Water-cooled sliding bearing seat |
| CN104972214A (en) * | 2015-07-22 | 2015-10-14 | 哈尔滨汽轮机厂有限责任公司 | Electron beam welding method for bearing block of gas turbine |
-
2018
- 2018-04-27 CN CN201810395845.3A patent/CN108705220B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288895A (en) * | 1976-11-10 | 1981-09-15 | The Glacier Metal Company, Limited | Bearings |
| JPS5754720A (en) * | 1980-09-17 | 1982-04-01 | Toyota Motor Corp | Bearing and manufacturing method thereof |
| US4644624A (en) * | 1983-07-21 | 1987-02-24 | Federal-Mogul Corporation | Method for manufacturing a flanged half bearing |
| CN1687600A (en) * | 2005-04-29 | 2005-10-26 | 四川工程职业技术学院 | All welded steel structured bearing seat of blower fan water-cooling type in large-scale power station, and manufacturing method thereof |
| CN201209630Y (en) * | 2008-06-17 | 2009-03-18 | 王登科 | Rolling bearing seat manufactured by welding process |
| CN101392801A (en) * | 2008-06-17 | 2009-03-25 | 王登科 | Method for manufacturing rolling bearing seat by adopting welding process |
| CN201771980U (en) * | 2010-08-26 | 2011-03-23 | 北京中冶设备研究设计总院有限公司 | Water-cooled sliding bearing seat |
| CN104972214A (en) * | 2015-07-22 | 2015-10-14 | 哈尔滨汽轮机厂有限责任公司 | Electron beam welding method for bearing block of gas turbine |
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|---|---|
| CN108705220A (en) | 2018-10-26 |
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