CN117307610A - Bearing bush and compounding process thereof - Google Patents

Bearing bush and compounding process thereof Download PDF

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Publication number
CN117307610A
CN117307610A CN202311428917.7A CN202311428917A CN117307610A CN 117307610 A CN117307610 A CN 117307610A CN 202311428917 A CN202311428917 A CN 202311428917A CN 117307610 A CN117307610 A CN 117307610A
Authority
CN
China
Prior art keywords
bearing bush
layer
bearing
wall
composite part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202311428917.7A
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Chinese (zh)
Other versions
CN117307610B (en
Inventor
傅珏奕
郭中外
许炳钱
冯银炳
黄梅
朱蒋武
金晶
舍列格·瓦列里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Shenfa Bearing Shell Co ltd
Original Assignee
Zhejiang Shenfa Bearing Shell Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Shenfa Bearing Shell Co ltd filed Critical Zhejiang Shenfa Bearing Shell Co ltd
Priority to CN202311428917.7A priority Critical patent/CN117307610B/en
Publication of CN117307610A publication Critical patent/CN117307610A/en
Application granted granted Critical
Publication of CN117307610B publication Critical patent/CN117307610B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/046Brasses; Bushes; Linings divided or split, e.g. half-bearings or rolled sleeves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/14Special methods of manufacture; Running-in

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The invention discloses a bearing bush and a compounding process thereof, the bearing bush comprises a bearing bush body, the bearing bush body comprises a bearing bush compounding part, a bearing bush layer is arranged in the bearing bush compounding part, the bearing bush layer comprises a bearing bush layer I and a bearing bush layer II positioned on the outer side of the bearing bush layer I, the bearing bush layer I is adhered with the bearing bush layer II, the bearing bush layer II is adhered with the inner wall of the bearing bush compounding part, a plurality of hollow parts are formed between the outer wall of the bearing bush layer II and the inner wall of the bearing bush compounding part, a negative pressure environment is arranged in the hollow parts, a pipe is installed in the bearing bush compounding part, the pipe is inserted into the bearing bush compounding part, a hole I is formed in the pipe, the inner side of the hole I is communicated with the hollow parts, a one-way valve is installed on one side of the Kong Yiyuan away from the hollow parts, and the flowing direction of the one-way valve is radially outwards along the bearing bush compounding part. The invention provides a bearing bush and a compounding process thereof, which improves the combination capability of the bearing bush and a bearing bush body.

Description

Bearing bush and compounding process thereof
Technical Field
The invention relates to the technical field of sliding bearings, in particular to a bearing bush and a compounding process thereof.
Background
When the bearing bush of the sliding bearing is manufactured, the thick wall ring is formed by spraying an alloy coating on the inner wall of the bearing bush body and is used for forming clearance fit with the inside and the outside of the shaft. At present, the binding force between the shaft and the inner wall of the bearing bush layer in the unit in the electric power industry is insufficient, the service life of the unit is influenced, particularly, along with the development of the electric power industry, a supercritical unit pursuing high efficiency, large capacity and low pollution emission of a single machine becomes a main machine type, the supercritical unit has higher requirements on each key component, and the binding force between the bearing bush layer and the bearing bush body of the unit is required to reach higher requirements for bearing bushes so as to prevent the bearing bush layer from peeling under high load and harsher working conditions.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a bearing bush and a compounding process thereof, so that the combination capability of the bearing bush and a bearing bush body is improved.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the bearing bush comprises a bearing bush body, wherein the bearing bush body comprises a bearing bush composite part, a bearing bush layer is arranged in the bearing bush composite part, the bearing bush layer comprises a bearing bush layer I and a bearing bush layer II positioned on the outer side of the bearing bush layer I, the bearing bush layer I and the bearing bush layer II are adhered to each other, the bearing bush layer II and the inner wall of the bearing bush composite part are adhered, a plurality of hollow parts are formed between the outer wall of the bearing bush layer II and the inner wall of the bearing bush composite part, a negative pressure environment is formed in the hollow parts, a pipe is blocked in the bearing bush composite part, the pipe is inserted into the bearing bush composite part, a hole I is formed in the pipe, the inner side of the hole I is communicated with the hollow parts, a one-way valve is arranged on one side of the hollow parts, and the one-way valve is arranged along the radial direction of the bearing bush composite part.
The inner wall of the bearing bush composite part is provided with a concave-convex part, and the concave-convex part is embedded into the outer wall of the bearing bush layer.
The hollow part is positioned on the inner side of the two inner walls of the bearing bush layer.
The composite process of the bearing bush comprises the bearing bush, wherein an auxiliary assembly is arranged at the composite part of the bearing bush, the auxiliary assembly comprises an auxiliary block and a guide pipe, the auxiliary block is positioned at a hollow part to form filling, the guide pipe is inserted into the composite part of the bearing bush and extends into the auxiliary block, and a spraying pipe is arranged at the inner side of the composite part of the bearing bush, and the process comprises the following steps:
s primary coating:
the bearing bush composite part is sprayed on the inner wall through a spraying pipe to form a bearing bush layer II, the auxiliary block is melted and flows outwards through the flow guide pipe, and a hollow part is formed between the outer wall of the bearing bush layer II and the inner wall of the bearing bush composite part;
s, coating again:
the second bearing bush layer is sprayed on the inner wall through a spraying pipe to form a first bearing bush layer;
s, negative pressure forming:
taking out the guide pipe, inserting the blocking pipe at the same position, and forming a negative pressure environment in the hollow part through the vacuum pump.
The bearing bush assembly comprises a main shaft, wherein the main shaft is provided with a chuck, one end of a bearing bush body, which is far away from a bearing bush composite part, is inserted into the chuck, and the main shaft rotates to enable the chuck to drive the bearing bush body to rotate.
The auxiliary block is plastic, and the melting point of the auxiliary block is lower than that of the bearing bush layer.
The outer side of the bearing bush composite part is provided with a fixed ring, the inner side of the fixed ring is provided with a ring groove, the bottom of the ring groove is connected with a bottom hole, and the bottom hole is connected with a vacuum pump through a connecting pipe.
The material spraying pipe comprises a feeding channel, and a pouring gate is arranged on one side of the feeding channel, which is close to the bearing bush layer.
The honeycomb duct includes leading orifice, leading orifice inboard and auxiliary block outside intercommunication.
The auxiliary block may be a hollow structure.
The beneficial effects of the invention are as follows:
by arranging the saw-toothed concave-convex parts and the second bearing bush layer to be inlaid with each other, the contact area of the second bearing bush layer and the composite bearing bush part is enhanced, and when the two parts are stripped, larger resistance is needed to be overcome, so that the overall binding force of the two parts is greatly enhanced.
After the hollow part is formed, the external air pressure forms the pressure from inside to outside on the bearing bush layer, so that the binding force between the bearing bush layer and the bearing bush composite part is greatly increased, and the stripping phenomenon is difficult to occur under a more severe use environment
Drawings
FIG. 1 is a cross-sectional view of a shaft bushing body in an embodiment;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a cross-sectional view of a mounting section of a shoe body in an embodiment;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a second cross-sectional view of the installation of the axle shoe body in the embodiment;
fig. 6 is an enlarged view at C in fig. 5.
In the figure: spindle 1, chuck 11, fastener 12, fixing ring 2, ring groove 21, bottom hole 22, vacuum pump 3, spout pipe 4, feed channel 41, gate 42, connecting pipe 5, bushing body 6, bushing compound 61, concave-convex portion 611, bushing layer 62, bushing layer one 621, bushing layer two 622, hollow 63, auxiliary assembly 7, auxiliary block 71, draft tube 72, main flow hole 721, side flow hole 722, blanking tube 8, hole one 81, check valve 9.
Detailed Description
The technical scheme of the invention is further described below through examples and with reference to the accompanying drawings.
As shown in fig. 1-6, a bearing bush comprises a bearing bush body 6, wherein the bearing bush body 6 is of a cylindrical structure, the inner side shaft of the bearing bush body 6 is penetrated, the bearing bush body 6 comprises a bearing bush composite part 61, and the bearing bush composite part 61 is a part with a slightly smaller inner diameter of the bearing bush body 6.
As shown in fig. 1, 2 and 3, a bearing bush layer 62 is disposed in the bearing bush composite portion 61, the bearing bush layer 62 is formed by solidifying molten alloy sprayed on the inner wall of the bearing bush composite portion 61, and when spraying, the bearing bush layer 62 is in a state of rotating around the center thereof, and the spraying position is located on the inner side of the bearing bush layer 62. The bearing bush layer 62 comprises a bearing bush layer I621 and a bearing bush layer II 622 positioned on the outer side of the bearing bush layer I621, the bearing bush layer I621 and the bearing bush layer II 622 are mutually adhered, the bearing bush layer I621 and the bearing bush layer II 622 are both of the same alloy, the difference is that the temperature is lower when the bearing bush layer II 622 positioned on the outer layer is sprayed, the bearing bush layer II 622 is instantly solidified when being sprayed to the inner wall of the bearing bush composite part 61, the bearing bush layer I621 is continuously sprayed on the inner wall of the bearing bush layer II 622, the temperature is higher when the bearing bush layer I621 falls to the bearing bush layer II 622, then the bearing bush layer I621 is slowly cooled and solidified, and along with the rotation of the bearing bush layer 62, the bearing bush layer I621 forms a more uniform alloy coating, and the roundness error of the inner wall surface is smaller.
As shown in fig. 3 and 4, the inner wall of the bearing bush composite portion 61 is provided with a concave-convex portion 611, the concave-convex portion 611 is in a zigzag structure formed along the axial direction of the bearing bush composite portion 61, the concave-convex portion 611 and the bearing bush layer two 622 are mutually inlaid, and by providing the concave-convex portion 611, the contact area of the bearing bush composite portion 61 and the bearing bush layer two 622 is enhanced, so that the bonding force of the two is enhanced.
As shown in fig. 1 and 2, the second bearing bush layer 622 is adhered to the inner wall of the bearing bush composite portion 61, the outer wall of the second bearing bush layer 622 is provided with a concave portion, a plurality of hollow portions 63 are formed between the outer wall of the second bearing bush layer 622 and the inner wall of the bearing bush composite portion 61 after being adhered, the hollow portions 63 are located on the inner side of the outer wall of the second bearing bush layer 622, the hollow portions 63 are uniformly distributed along the circumferential direction of the bearing bush composite portion 61, a negative pressure environment is arranged in the hollow portions 63, the bearing bush composite portion 61 is provided with a blocking pipe 8, the blocking pipe 8 is inserted into the bearing bush composite portion 61 radially inwards along the bearing bush composite portion 61, the blocking pipe 8 extends into the hollow portions 63, the blocking pipe 8 is provided with a first hole 81, the inner side of the first hole 81 is communicated with the hollow portions 63, one-way valves 9 are arranged on one side of the first hole 81 away from the hollow portions 63, and the one-way valves 9 flow directions are radially outwards along the bearing bush composite portion 61. The outside of the hollow part 63 is sealed by the blocking pipe 8 and the one-way valve 9, so that the inside of the hollow part 63 is sealed by the outer wall of the second bearing bush layer 622, the hollow part 63 is completely sealed, a vacuum pump is externally connected with the negative pressure environment through the blocking pipe 8, gas in the hollow part 63 is discharged, the gas can be discharged outwards from the hollow part 63 through the one-way valve 9 due to the fact that the circulating direction of the one-way valve 9 is along the radial direction of the bearing bush composite part 61, and external air flow cannot enter the hollow part 63 through the one-way valve 9.
In the above bearing bush composite process manufacturing, as shown in fig. 3 and 4, the process equipment includes a main shaft 1, the main shaft 1 is provided with a chuck 11, one end of the bearing bush body 6 away from the bearing bush composite portion 61 is inserted into the chuck 11 and fixed by a fastener 12, and the main shaft 1 rotates to enable the chuck 11 to drive the bearing bush body 6 to rotate. The process equipment further comprises a spraying pipe 4, the spraying pipe 4 stretches into the inner side of the bearing bush composite part 61, the spraying pipe 4 is provided with a feeding channel 41, one side, close to the bearing bush composite part 61, of the feeding channel 41 is communicated with a pouring gate 42, and spraying is carried out on the bearing bush composite part 61 through the pouring gate 42.
The bush composite portion 61 is provided with an auxiliary assembly 7, and the auxiliary assembly 7 is a process auxiliary member and is taken out after the completion of the production. The auxiliary assembly 7 comprises an auxiliary block 71 and a guide pipe 72, wherein the auxiliary block 71 is positioned on the inner side of the inner wall of the bearing bush composite part 61, and the guide pipe 72 is inserted into the bearing bush composite part 61 and extends into the auxiliary block 71. When the auxiliary block 71 is installed, the auxiliary block 71 is placed on the inner wall surface of the bearing bush composite part 61, the guide pipe 72 is inserted from the outer wall of the bearing bush composite part 61 along the radial direction of the bearing bush composite part 61 and extends into the auxiliary block 71, and the auxiliary block 71 is connected with the guide pipe 72 in an interference fit manner. The auxiliary block 71 is made of polyethylene material, the melting point is 100 ℃, the auxiliary block 71 can be provided with a hollow structure (not shown in the figure) so as to facilitate the subsequent melting of the alloy layer by heating, and the auxiliary block 71 flows out after melting, so that the hollow part 63 is formed at the original position of the auxiliary block 71.
The flow guide 72 is axially provided with a main flow guide hole 721, the main flow guide hole 721 is communicated, one end of the main flow guide hole 721, which is close to the auxiliary block 71, is provided with a plurality of side flow guide holes 722, the side flow guide holes 722 are radially arranged along the flow guide 72, the outer sides of the side flow guide holes 722 penetrate through the flow guide 72, the inner sides of the side flow guide holes 722 are communicated with the main flow guide hole 721, and the main flow guide hole 721 and the side flow guide holes 722 are used for the auxiliary block 71 to flow out after being heated and melted.
The bearing bush composite part 61 outside is provided with solid fixed ring 2, gu fixed ring 2 is the ring form, gu fixed ring 2 inner peripheral wall is close to and both have the clearance with bearing bush composite part 61 periphery wall, gu fixed ring 2 is fixed to be placed, gu fixed ring 2 inboard is provided with annular 21, annular 21 is along gu fixed ring 2 inner wall face center along radial outside sunken, annular 21 inboard and leading orifice 721 butt joint, annular 21 outside is equipped with bottom hole 22, bottom hole 22 is located solid fixed ring 2 bottom, bottom hole 22 bottom is connected with connecting pipe 5, connecting pipe 5 inserts vacuum pump 3. The auxiliary block 71 is melted by heating and flows out along the guide pipe 72 by the centrifugal force generated by the rotation of the bearing bush composite part 61 and the suction force of the vacuum pump 3, so that the hollow part 63 is formed at the original position of the auxiliary block 71.
The process comprises the following steps:
s1, primary coating:
the auxiliary assembly 7 is mounted with the bearing bush composite portion 61, the bearing bush body 6 is mounted on the chuck 11, and the spray pipe 4 extends into the inner side of the bearing bush composite portion 61.
The bearing bush composite part 61 is sprayed on the inner wall through the spraying pipe 4 to form a bearing bush layer II 622 in a rotating state, the bearing bush layer II 622 is immediately solidified when reaching the inner wall of the bearing bush composite part 61, and a solidified protective layer of the bearing bush layer II 622 is formed on the periphery of the auxiliary block 71, so that the auxiliary block 71 is wrapped, and as the temperature of the bearing bush layer II 622 after solidification is still very high and is far higher than the melting point (100 ℃) of the auxiliary block 71 (polyethylene), the auxiliary block 71 begins to melt and flows outwards through the guide pipe 72, the fixing ring 2 and the connecting pipe 5, and a hollow part 63 is formed between the outer wall of the bearing bush layer II 622 and the inner wall of the bearing bush composite part 61 after flowing out;
s2 recoating
The second bearing bush layer 622 is sprayed on the inner wall through the material spraying pipe 4 to form a first bearing bush layer 621, the spraying temperature of the first bearing bush layer 621 is higher than that of the second bearing bush layer 622, and along with the rotation of the bearing bush layer 62, the first bearing bush layer 621 forms a more uniform alloy coating, and the roundness error of the inner wall surface is smaller;
s3 negative pressure forming
The guide pipe 72 is taken out, the blocking pipe 8 is inserted at the same position, the one-way valve 9 is placed in the blocking pipe 8, and the hollow part 63 is formed into a negative pressure environment by a vacuum pump.
After the hollow portion 63 is formed, external air pressure is applied to the bearing bush layer 62 from inside to outside, so that the bonding force between the bearing bush layer 62 and the bearing bush composite portion 61 is greatly increased, and the peeling phenomenon is difficult to occur under a more severe use environment.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (10)

1. Bearing bush, including bearing bush body (6), its characterized in that: the bearing bush body (6) comprises a bearing bush composite part (61), a bearing bush layer (62) is arranged in the bearing bush composite part (61), the bearing bush layer (62) comprises a bearing bush layer I (621) and a bearing bush layer II (622) arranged on the outer side of the bearing bush layer I (621), the bearing bush layer I (621) and the bearing bush layer II (622) are adhered to each other, the bearing bush layer II (622) is adhered to the inner wall of the bearing bush composite part (61), a plurality of hollow parts (63) are formed between the outer wall of the bearing bush layer II (622) and the inner wall of the bearing bush composite part (61), a negative pressure environment is formed in the hollow parts (63), a blocking pipe (8) is arranged in the bearing bush composite part (61), the blocking pipe (8) is provided with a hole I (81), the inner side of the hole I (81) is communicated with the hollow parts (63), one side of the hole I (81) is far away from the hollow parts (63) and a one-way valve (9) is arranged on one side of the hollow parts (63), and the one-way valve (9) is in the radial direction of the bearing bush composite part (61).
2. A bushing according to claim 1, wherein: the inner wall of the bearing bush composite part (61) is provided with a concave-convex part (611), and the concave-convex part (611) is embedded into the outer wall of the bearing bush layer (62).
3. A bushing according to claim 1, wherein: the hollow part (63) is positioned on the inner side of the inner wall of the second bearing bush layer (622).
4. A process for compounding a bearing shell comprising a bearing shell according to any one of claims 1 to 3, characterized in that: auxiliary assembly (7) are installed to axle bush compound portion (61), auxiliary assembly (7) are including auxiliary block (71), honeycomb duct (72), auxiliary block (71) are located cavity portion (63) position forms the packing, honeycomb duct (72) are inserted axle bush compound portion (61) and stretch into in auxiliary block (71), axle bush compound portion (61) inboard is provided with spouts material pipe (4), its process step is as follows:
s1, primary coating:
the bearing bush composite part (61) is sprayed on the inner wall through the spraying pipe (4) to form a bearing bush layer II (622), the auxiliary block (71) is melted and flows outwards through the flow guide pipe (72), and the hollow part (63) is formed between the outer wall of the bearing bush layer II (622) and the inner wall of the bearing bush composite part (61);
s2, coating again:
the second bearing bush layer (622) is sprayed on the inner wall through the spraying pipe (4) to form a first bearing bush layer (621);
s3, negative pressure forming:
the guide pipe (72) is taken out, the blocking pipe (8) is inserted at the same position, and a negative pressure environment is formed in the hollow part (63) through a vacuum pump.
5. A process for compounding a bearing shell according to claim 4, wherein: the novel bearing bush comprises a main shaft (1), wherein the main shaft (1) is provided with a chuck (11), one end of a bearing bush body (6) away from a bearing bush composite part (61) is inserted into the chuck (11), and the main shaft (1) rotates to enable the chuck (11) to drive the bearing bush body (6) to rotate.
6. A process for compounding a bearing shell according to claim 4, wherein: the auxiliary block (71) is plastic and has a melting point lower than that of the bearing bush layer (62).
7. A process for compounding a bearing shell according to claim 4, wherein: the bearing bush is characterized in that a fixed ring (2) is arranged on the outer side of the bearing bush composite part (61), an annular groove (21) is formed in the inner side of the fixed ring (2), a bottom hole (22) is connected to the bottom of the annular groove (21), and the bottom hole (22) is connected with a vacuum pump (3) through a connecting pipe (5).
8. A process for compounding a bearing shell according to claim 4, wherein: the spraying pipe (4) comprises a feeding channel (41), and a pouring gate (42) is arranged on one side, close to the bearing bush layer (62), of the feeding channel (41).
9. A process for compounding a bearing shell according to claim 4, wherein: the draft tube (72) includes a main flow orifice (721), the inside of the main flow orifice (721) communicating with the outside of the auxiliary block (71).
10. A process for compounding a bearing shell according to claim 4, wherein: the auxiliary block (71) may be a hollow structure.
CN202311428917.7A 2023-10-30 2023-10-30 Bearing bush and compounding process thereof Active CN117307610B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311428917.7A CN117307610B (en) 2023-10-30 2023-10-30 Bearing bush and compounding process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311428917.7A CN117307610B (en) 2023-10-30 2023-10-30 Bearing bush and compounding process thereof

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Publication Number Publication Date
CN117307610A true CN117307610A (en) 2023-12-29
CN117307610B CN117307610B (en) 2024-02-23

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005001086A (en) * 2003-06-13 2005-01-06 Nippei Toyama Corp Method and device for sucking and releasing workpiece in spindle device
JP2010127318A (en) * 2008-11-25 2010-06-10 Mitsubishi Heavy Ind Ltd Lubricating structure of rotating shaft
CN207554584U (en) * 2017-11-28 2018-06-29 浙江诸暨市轴瓦总厂有限公司 A kind of bearing shell with oil groove
CN211778561U (en) * 2019-12-26 2020-10-27 江苏万里活塞轴瓦有限公司 High-bearing bush
CN213176474U (en) * 2020-09-03 2021-05-11 广州市研理复合材料科技有限公司 Double-layer vibration-damping radial sliding bearing with tilting pad
CN114060411A (en) * 2021-08-03 2022-02-18 大丰市明月轴瓦有限公司 Novel bearing bush convenient to installation is fixed
CN216975511U (en) * 2021-12-29 2022-07-15 潍柴动力股份有限公司 Main bearing structure and engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005001086A (en) * 2003-06-13 2005-01-06 Nippei Toyama Corp Method and device for sucking and releasing workpiece in spindle device
JP2010127318A (en) * 2008-11-25 2010-06-10 Mitsubishi Heavy Ind Ltd Lubricating structure of rotating shaft
CN207554584U (en) * 2017-11-28 2018-06-29 浙江诸暨市轴瓦总厂有限公司 A kind of bearing shell with oil groove
CN211778561U (en) * 2019-12-26 2020-10-27 江苏万里活塞轴瓦有限公司 High-bearing bush
CN213176474U (en) * 2020-09-03 2021-05-11 广州市研理复合材料科技有限公司 Double-layer vibration-damping radial sliding bearing with tilting pad
CN114060411A (en) * 2021-08-03 2022-02-18 大丰市明月轴瓦有限公司 Novel bearing bush convenient to installation is fixed
CN216975511U (en) * 2021-12-29 2022-07-15 潍柴动力股份有限公司 Main bearing structure and engine

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