CN110566657A - support frock that supplementary bearing was changed - Google Patents
support frock that supplementary bearing was changed Download PDFInfo
- Publication number
- CN110566657A CN110566657A CN201910983605.XA CN201910983605A CN110566657A CN 110566657 A CN110566657 A CN 110566657A CN 201910983605 A CN201910983605 A CN 201910983605A CN 110566657 A CN110566657 A CN 110566657A
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- CN
- China
- Prior art keywords
- support
- bearing
- supporting
- shaft
- bearing seat
- 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.)
- Pending
Links
- 230000008859 change Effects 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Abstract
the invention discloses a supporting tool for assisting in bearing replacement, and belongs to the technical field of mechanical assembly. The support tool provided by the invention comprises an installation structure, a support shaft assembly and a bottom support assembly, wherein the support shaft assembly comprises a support shaft and a bearing seat, the bottom support assembly comprises a support plate and at least two support bodies, the support bodies are detachably connected between the support plate and the bearing seat, and the support bodies are disassembled and assembled between the support plate and the bearing seat according to a certain sequence, so that the gear shaft can be stably supported and the bearing can be disassembled and assembled. This support work not only can realize under the prerequisite of not unpacking that the bearing is quick, conveniently change through the cooperation that utilizes supporting shaft subassembly and bottom sprag subassembly, and can support for the gear shaft in the gear box steadily when dismouting bearing to guarantee that the gear shaft can the free rotation and have higher rotation precision, thereby avoided the gear on the gear shaft and the bearing of the other end impaired, improved the security of gear box.
Description
Technical Field
The invention relates to the technical field of mechanical assembly, in particular to a supporting tool for assisting in bearing replacement.
background
the bearing is a common part in the gear box and is mainly used for supporting the gear shaft to rotate so as to achieve the purposes of reducing the friction force applied to the gear shaft in the rotating process and improving the rotation precision of the gear shaft in the rotating process. The bearing is worn in the long-term use process, and the worn bearing seriously influences the supporting stability and the rotation precision of the gear shaft, so that the bearing needs to be replaced regularly.
The existing bearing replacing modes are generally two, the first mode is to disassemble the gear box, then take out a parallel-stage shafting of the gear box and replace the bearing on the gear shaft, but the method needs to be operated by opening the gear box, so that the operation is complex and the disassembly and assembly period is long. The second method is to use a lifting rope to lift a shaft system of the gearbox so as to replace a bearing, but the method cannot accurately position and stably support the shaft system in the bearing replacing process. In the process of replacing the bearing, the shafting inevitably rotates, but because the rotation precision and the stability of the shafting cannot be ensured, the gear on the shafting and the bearing at the other end can be damaged, and the service life of the components and the safety and the replacement efficiency in the process of replacing are affected.
Disclosure of Invention
the invention aims to provide a supporting tool for assisting in bearing replacement, which is simple to operate and high in dismounting efficiency, can stably support a shaft system of a gearbox in a dismounting process, and is high in safety.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a support frock that supplementary bearing was changed, includes:
The mounting structure is used for being connected with a box body of the gear box;
the supporting shaft assembly comprises a supporting shaft and a bearing seat which is rotatably sleeved on the supporting shaft, one end of the supporting shaft is used for being connected with a gear shaft of the gear box, and a dismounting path of the target bearing is formed around the bearing seat;
The bottom support assembly is positioned below the support shaft assembly and comprises a support plate and at least two support bodies, and the support plate is connected with the mounting structure; the support plates are arranged on the at least two support bodies at intervals along the dismounting path of the target bearing, and each support body can be detachably connected between the support plate and the bearing seat.
preferably, the support shaft assembly further comprises a support bearing disposed between the support shaft and the bearing housing.
Preferably, the number of the support bearings is two, and the two support bearings are arranged between the support shaft and the bearing seat at intervals.
Preferably, a limiting shaft sleeve is arranged between the two supporting bearings.
preferably, one end of the support shaft is provided with a flange, and the flange is connectable with the gear shaft.
Preferably, the flange is provided with a first connecting hole, the gear shaft is provided with a second connecting hole, and the first connecting piece penetrates through the first connecting hole and the second connecting hole.
preferably, the mounting structure is an annular plate-like structure.
Preferably, the mounting structure is integrally formed with the support plate.
preferably, the top surface of the support body is a first arc surface, the outer wall surface of the bearing seat is a second arc surface, and the first arc surface is abutted to the second arc surface;
the surface of the supporting plate, which is abutted against the supporting body, is a third arc-shaped surface, the bottom surface of the supporting body is a fourth arc-shaped surface, and the third arc-shaped surface is abutted against the fourth arc-shaped surface;
Each support body is configured to be capable of rotating around the bearing seat so as to have a first state of supporting the bearing seat and a second state of avoiding a dismounting path of the target bearing.
Preferably, a third connecting hole is formed in the supporting plate, a fourth connecting hole is formed in the bottom of the supporting body, and a second connecting piece penetrates through the third connecting hole and the fourth connecting hole.
The invention has the beneficial effects that:
The invention provides a supporting tool for replacing an auxiliary bearing, which comprises an installation structure, a supporting shaft assembly and a bottom supporting assembly, wherein the supporting shaft assembly comprises a supporting shaft and a bearing seat, the bottom supporting assembly comprises a supporting plate and at least two supporting bodies, the supporting bodies are detachably connected between the supporting plate and the bearing seat, and the bearings can be assembled and disassembled while a gear shaft is stably supported by assembling and disassembling the supporting bodies between the supporting plate and the bearing seat according to a certain sequence. This support work not only can realize under the prerequisite of not unpacking that the bearing is quick, conveniently change through the cooperation that utilizes supporting shaft subassembly and bottom sprag subassembly, and can support for the gear shaft in the gear box steadily when dismouting bearing to guarantee that the gear shaft can the free rotation and have higher rotation precision, thereby avoided the gear on the gear shaft and the bearing of the other end impaired, improved the security of gear box.
Drawings
FIG. 1 is a front view of a support tool for auxiliary bearing replacement provided by the present invention;
FIG. 2 is a cross-sectional view of the support tool for assisting in bearing replacement provided by the present invention;
Fig. 3 is a top view of the support tool for assisting the bearing replacement provided by the present invention.
In the figure:
1. A mounting structure; 101. mounting holes;
2. A support shaft assembly; 201. a support shaft; 2011. a flange; 2012. a first connection hole; 202. a bearing seat; 203. a support bearing; 204. a limiting shaft sleeve;
3. a bottom support assembly; 301. a support plate; 3011. a third connection hole; 302. a support body; 3021. and a fourth connecting hole.
Detailed Description
the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
This embodiment provides a support frock (hereinafter support frock for short) that supplementary bearing changed, this support frock can assist maintenance person to accomplish the quick replacement to the bearing in the gear box under the prerequisite of not taking apart the gear box, and at the in-process of changing the bearing, this support frock can carry out the outrigger to the gear shaft in the gear box, not only make the gear shaft can the free rotation, and make the rotational accuracy of gear shaft higher, thereby spare parts such as the gear in the gear box and the bearing that need not change have been avoided impaired. As shown in fig. 1 to 3, the support tool includes a mounting structure 1, a support shaft assembly 2, and a bottom support assembly 3.
the mounting structure 1 is used for mounting the whole supporting tool on the outer wall of the box body of the gear box, so that the relative position of the supporting tool and the gear box is kept fixed, and the target bearing is replaced. Alternatively, as shown in fig. 1, the mounting structure 1 is an annular plate-like structure, and the inner hole of the annular plate-like structure is larger than the diameter of the bearing hole of the gear box for mounting the target bearing. When the whole supporting tool is installed on the outer wall of the box body of the gearbox, the annular plate-shaped structure and the bearing hole are concentrically arranged, and then the installing structure 1 is fixed on the outer wall of the box body by adopting a fastener. Specifically, as shown in fig. 1, a plurality of mounting holes 101 through which fasteners are inserted are provided along the circumferential direction of the annular plate-like structure. Of course, in other embodiments, the mounting structure 1 may also be other structures, such as a semi-circular or semi-annular plate-like structure.
The supporting shaft assembly 2 and the bottom supporting assembly 3 are matched to stably support the gear shaft when the target bearing is disassembled and assembled, so that the gear shaft can stably and precisely rotate. Specifically, as shown in fig. 1 and 2, the support shaft assembly 2 includes a support shaft 201 and a bearing seat 202, the bearing seat 202 is provided with a through hole along an axial direction, the support shaft 201 is located in the through hole, and one end of the support shaft 201 is connected with a gear shaft in the gear box, on which a target bearing is mounted. The bearing seat 202 is sleeved on the support shaft 201 and can rotate relative to the support shaft 201. A disassembly and assembly path of the target bearing is formed around the bearing housing 202. That is, when the target bearing is attached and detached, the target bearing is fitted over the bearing housing 202 and can move in the axial direction of the bearing housing 202.
The bottom support assembly 3 is located below the support shaft assembly 2 for supporting the bearing housing 202. Specifically, as shown in fig. 1 to 3, the bottom support assembly 3 includes a support plate 301 and at least two support bodies 302, one end of the support plate 301 is connected to the bottom of the mounting structure 1, and the connection manner is not limited, and may be a connection member, a welding or an integral molding. At least two supporting bodies 302 are disposed on the supporting plate 301 at intervals along the dismounting path of the target bearing, and each supporting body 302 is detachably connected between the supporting shaft assembly 2 and the bearing housing 202. In the present embodiment, the number of the supporting bodies 302 is two, and the two supporting bodies 302 are respectively disposed at two ends of the bearing seat 202, and for convenience of description, the supporting body 302 close to the mounting structure 1 is named as a first supporting body, and the supporting body 302 far from the mounting structure 1 is named as a second supporting body.
when the target bearing is detached from the gear shaft, the use method of the support tool comprises the following steps:
Firstly, after a support shaft assembly 2 of a support tool is aligned with a target bearing of a gear box, a mounting structure 1 is connected with a box body of the gear box, and a support shaft 201 is connected with a gear shaft; then the first support body is detached from between the support plate 301 and the bearing seat 202 (at this time, the second support body is supported between the support plate 301 and the bearing seat 202), and the bearing is detached from the gear shaft by using a bearing detaching tool (such as a clamp or other mechanisms) and then pulled to the second support body; finally, the first support body is installed between the support plate 301 and the bearing seat 202 again, after the first support body is installed in place, the second support body is detached from the space between the support plate 301 and the bearing seat 202, and the bearing can be smoothly separated from the support tool at the moment, so that the detachment of the target bearing is completed.
The supporting tool can also be used for mounting a target bearing. When the target bearing is installed, the second support body needs to be detached from between the support plate 301 and the bearing seat 202 (at this time, the first support body is supported between the support plate 301 and the bearing seat 202), and the target bearing is moved to the first support body; then, the second support body is installed between the support plate 301 and the bearing seat 202 again, after the second support body is installed in place, the first support body is detached from the position between the support plate 301 and the bearing seat 202, and at the moment, the target bearing can be moved to a bearing hole of the gear box; and finally, the bearing can be mounted on the gear shaft by using the bearing mounting tool, so that the target bearing is mounted.
In the whole bearing dismounting or mounting process, as the support body 302 is always positioned between the support plate 301 and the bearing seat 202, the bearing seat 202 can be always stably supported, and further the gear shaft can be stably supported. When the gear shaft rotates accidentally, due to the existence of the supporting shaft 201 and the bearing seat 202, the rotation precision of the gear shaft is high, the stability is good, and therefore the gear inside the gear box and the bearing at the other end of the gear shaft cannot be damaged, and the safety of the gear box is guaranteed. In addition, the bearing is disassembled and assembled by the support tool, and the box body of the gear box does not need to be disassembled, so that the shutdown time and the maintenance and replacement time of the bearing can be effectively shortened, and the maintenance cost is favorably reduced.
optionally, in order to improve the smoothness of the rotation of the support shaft 201 in the bearing housing 202, a support bearing 203 is further provided between the support shaft 201 and the bearing housing 202. In the present embodiment, the number of the support bearings 203 is two, and the two support bearings 203 are disposed at intervals between the support shaft 201 and the bearing housing 202. Further optionally, a limiting shaft sleeve 204 is further disposed between the two support bearings 203, and the relative position of the two support bearings 203 is limited by the limiting shaft sleeve 204.
In order to facilitate the connection between the support shaft 201 and the gear shaft, a flange 2011 is arranged at one end of the support shaft 201, the size of the flange 2011 is larger than the shaft diameter of the support shaft 201, and the flange 2011 is connected with the gear shaft, so that the operation is facilitated. Specifically, as shown in fig. 1 and 2, a plurality of first coupling holes 2012 are provided along a circumferential direction of the flange 2011, and a plurality of second coupling holes (not shown) are provided at opposite positions of the gear shaft, and the support shaft 201 and the gear shaft are coupled by passing the first coupling members through the first coupling holes 2012 and the second coupling holes. Optionally, the first connecting hole 2012 and the second connecting hole are both threaded holes, and the first connecting member is a screw.
Further, in order to reduce the difficulty of detaching and mounting the supporting body 302 between the supporting plate 301 and the bearing housing 202, in the present embodiment, the rotating method employs a rotating detaching and rotating method. Specifically, as shown in fig. 1, the top surface of the supporting body 302 is set as a first arc-shaped surface, and the bottom surface of the supporting body 302 is set as a fourth arc-shaped surface. Correspondingly, the outer wall surface of the bearing housing 202 is set to be a second arc surface, and the surface of the support plate 301 abutting against the support body 302 is set to be a third arc surface. The first arc surface abuts the second arc surface, the third arc surface abuts the fourth arc surface, and each support 302 is configured to be rotatable around the bearing housing 202 to have a first state located between the support plate 301 and the bearing housing 202 to support the bearing housing 202 and a second state not located between the support plate 301 and the bearing housing 202 to avoid a disassembly and assembly path of the target bearing.
Optionally, the first arc surface, the second arc surface, the third arc surface, and the fourth arc surface are concentrically disposed to further improve the smoothness of the rotation of the support 302. Of course, in other embodiments, the first arc surface, the second arc surface, the third arc surface, and the fourth arc surface may also be set to be planar structures, but compared with the planar structures, the arc surface structures are more favorable for the detachment and installation of the support body 302, and therefore, in this embodiment, the arc surface structures are preferably adopted.
Further, in order to improve the stability of the supporting body 302 in the first state and avoid the accidental rotation, a second connecting member is further disposed between the supporting plate 301 and the supporting body 302, and the second connecting member is used to detachably connect the supporting plate 301 and the supporting body 302. Specifically, the support plate 301 is provided with a third connection hole 3011, the bottom of the support body 302 is provided with a fourth connection hole 3021, and the second connector is disposed through the third connection hole 3011 and the fourth connection hole 3021. Optionally, the third connection hole 3011 and the fourth connection hole 3021 are both threaded holes, and the second connection member is a screw. When the supporting body 302 needs to be disassembled, the second connecting piece needs to be disassembled from the third connecting hole 3011 and the fourth connecting hole 3021.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a support frock that supplementary bearing was changed which characterized in that includes:
the mounting structure (1) is used for being connected with a box body of the gearbox;
The supporting shaft assembly (2) comprises a supporting shaft (201) and a bearing seat (202) which is rotatably sleeved on the supporting shaft (201), one end of the supporting shaft (201) is used for being connected with a gear shaft of the gear box, and a dismounting path of a target bearing is formed around the bearing seat (202);
A bottom support assembly (3) located below the support shaft assembly (2), the bottom support assembly (3) comprising a support plate (301) and at least two support bodies (302), the support plate (301) being connected to the mounting structure (1); at least two supporting bodies (302) are arranged on the supporting plate (301) at intervals along the dismounting path of the target bearing, and each supporting body (302) can be detachably connected between the supporting plate (301) and the bearing seat (202).
2. The support tool for assisting bearing replacement according to claim 1,
The support shaft assembly (2) further comprises a support bearing (203), and the support bearing (203) is arranged between the support shaft (201) and the bearing seat (202).
3. The support tool for assisting bearing replacement according to claim 2,
the number of the supporting bearings (203) is two, and the two supporting bearings (203) are arranged between the supporting shaft (201) and the bearing seat (202) at intervals.
4. The support tool for assisting bearing replacement according to claim 3,
a limiting shaft sleeve (204) is arranged between the two supporting bearings (203).
5. The support tool for assisting bearing replacement according to claim 1,
one end of the supporting shaft (201) is provided with a flange (2011), and the flange (2011) can be connected with the gear shaft.
6. The support tool for assisting bearing replacement according to claim 5,
be provided with first connecting hole (2012) on flange (2011), be provided with the second connecting hole on the gear shaft, first connecting piece passes first connecting hole (2012) with the setting of second connecting hole.
7. The support tool for assisting bearing replacement according to claim 1,
The mounting structure (1) is of an annular plate-shaped structure.
8. The support tool for assisting bearing replacement according to claim 1,
The mounting structure (1) and the support plate (301) are integrally formed.
9. The support tool for assisting bearing replacement according to any one of claims 1 to 8,
the top surface of the support body (302) is a first arc-shaped surface, the outer wall surface of the bearing seat (202) is a second arc-shaped surface, and the first arc-shaped surface is abutted to the second arc-shaped surface;
The surface of the supporting plate (301) abutted to the supporting body (302) is a third arc-shaped surface, the bottom surface of the supporting body (302) is a fourth arc-shaped surface, and the third arc-shaped surface is abutted to the fourth arc-shaped surface;
each support body (302) is configured to be rotatable around the bearing seat (202) to have a first state supporting the bearing seat (202) and a second state avoiding a disassembly path of the target bearing.
10. The support tool for assisting bearing replacement according to any one of claims 1 to 8,
The supporting plate (301) is provided with a third connecting hole (3011), the bottom of the supporting body (302) is provided with a fourth connecting hole (3021), and a second connecting piece penetrates through the third connecting hole (3011) and the fourth connecting hole (3021).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983605.XA CN110566657A (en) | 2019-10-16 | 2019-10-16 | support frock that supplementary bearing was changed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983605.XA CN110566657A (en) | 2019-10-16 | 2019-10-16 | support frock that supplementary bearing was changed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566657A true CN110566657A (en) | 2019-12-13 |
Family
ID=68785156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910983605.XA Pending CN110566657A (en) | 2019-10-16 | 2019-10-16 | support frock that supplementary bearing was changed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566657A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998059A (en) * | 2020-08-31 | 2020-11-27 | 重庆纳川重工设备制造有限公司 | Box body of gear box |
| CN112388543A (en) * | 2020-10-29 | 2021-02-23 | 合肥乐凯科技产业有限公司 | Maintenance tool suitable for chain clamp body of horizontal drawing machine |
| CN117129822A (en) * | 2023-06-26 | 2023-11-28 | 盛吉盛智能装备(江苏)有限公司 | Temperature homogenizing module and memory chip test sorting machine |
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| WO2016023880A2 (en) * | 2014-08-15 | 2016-02-18 | Siemens Aktiengesellschaft | Method for the exchange of a rolling bearing and method for axially displacing a gear of a wind turbine |
| CN107504162A (en) * | 2017-09-08 | 2017-12-22 | 东营仁合石油机械设备有限公司 | A kind of support of bearing |
| CN208089906U (en) * | 2017-10-18 | 2018-11-13 | 宁波东力传动设备有限公司 | A kind of easy-to-dismount speed reducer structure and extracting tool |
| CN210704616U (en) * | 2019-10-16 | 2020-06-09 | 南京高速齿轮制造有限公司 | Support frock that supplementary bearing was changed |
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| US6568859B1 (en) * | 2001-02-16 | 2003-05-27 | Bill Stegmeier | Bearing support |
| US6467968B1 (en) * | 2001-04-23 | 2002-10-22 | Richard Nils Young | Bearing assembly in circular clarifiers and thickeners and method for replacing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998059A (en) * | 2020-08-31 | 2020-11-27 | 重庆纳川重工设备制造有限公司 | Box body of gear box |
| CN112388543A (en) * | 2020-10-29 | 2021-02-23 | 合肥乐凯科技产业有限公司 | Maintenance tool suitable for chain clamp body of horizontal drawing machine |
| CN112388543B (en) * | 2020-10-29 | 2022-05-06 | 合肥乐凯科技产业有限公司 | Maintenance tool suitable for chain clamp body of horizontal drawing machine |
| CN117129822A (en) * | 2023-06-26 | 2023-11-28 | 盛吉盛智能装备(江苏)有限公司 | Temperature homogenizing module and memory chip test sorting machine |
| CN117129822B (en) * | 2023-06-26 | 2024-04-16 | 盛吉盛智能装备(江苏)有限公司 | Temperature homogenizing module and memory chip test sorting machine |
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Effective date of registration: 20200507 Address after: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |