CN214818279U - Static pressure axle bush dismantles frock - Google Patents
Static pressure axle bush dismantles frock Download PDFInfo
- Publication number
- CN214818279U CN214818279U CN202120643371.7U CN202120643371U CN214818279U CN 214818279 U CN214818279 U CN 214818279U CN 202120643371 U CN202120643371 U CN 202120643371U CN 214818279 U CN214818279 U CN 214818279U
- Authority
- CN
- China
- Prior art keywords
- bearing bush
- end cover
- lead screw
- bush
- tool
- 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.)
- Active
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000002706 hydrostatic effect Effects 0.000 claims 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model belongs to the technical field of extracting tool, concretely relates to frock is dismantled to static pressure axle bush, open including one end, the other end confined barrel, the end that opens of barrel offsets with the terminal surface of static pressure axle bush, and the axle bush is connected at the axle sleeve internal diameter, the blind end of barrel runs through and sets up the lead screw, and threaded connection has the subassembly of revolving soon on the lead screw, and the lead screw carries out axial displacement along with the rotation of revolving the subassembly of revolving, revolve the subassembly setting of revolving outside the barrel, the lead screw tip can be dismantled and be connected with the extrusion end cover that is used for the chucking axle bush.
Description
Technical Field
The utility model belongs to the technical field of extracting tool, concretely relates to frock is dismantled to static shaft axle bush.
Background
The axle neck and the bearing of the static pressure main shaft are completely separated by the bearing medium with certain pressure supplied from the outside, so that the relative friction between the axle neck and the bearing is reduced, the formation of the medium film body is not limited by the relative sliding speed, and the bearing has larger bearing capacity under various speeds. The shaft neck of the static pressure main shaft is separated from the bearing through the bearing bush, the bearing bush of the existing static pressure main shaft is damaged, if oil leakage occurs, locking and the like are caused, when maintenance is needed, the bearing bush is arranged in the main shaft, and when the copper bearing bush is used, the copper bearing bush is difficult to disassemble and maintain due to good toughness and poor strength of the copper bearing bush.
Disclosure of Invention
According to the defect that above-mentioned prior art exists, the utility model aims at providing a frock is dismantled to static pressure axle bush of convenient and fast, harmless dismantlement.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a frock is dismantled to static pressure axle bush, opens including one end, and the other end confined barrel, the end that opens of barrel offsets with the terminal surface of static pressure axle bush, and the axle bush is connected at the axle sleeve internal diameter, the blind end of barrel runs through and sets up the lead screw, and threaded connection has soon to revolve wrong subassembly on the lead screw, and the lead screw carries out axial displacement along with revolving the rotation of revolving wrong subassembly, revolve wrong subassembly setting outside the barrel, the lead screw tip can be dismantled and be connected with the extrusion end cover that is used for the chucking axle bush.
Further, the minimum diameter position of the extrusion end cover is smaller than the inner diameter of the bearing bush.
Further, the side surface of the extrusion end cover is formed by alternately forming cambered surfaces and flat surfaces.
Further, the side surface of the extrusion end cover is in a tetrahedral structure formed by alternating arc surfaces and planes, and the diameter between the two planes is the smallest
Furthermore, a chamfer matched with the inner diameter of the bearing bush is arranged on one side, close to the bearing bush, of the arc surface of the extrusion end cover.
Further, the screw assembly is rotatably supported with the closed end of the barrel by a thrust bearing.
Furthermore, a threaded hole is formed in the extrusion end cover, and the end part of the lead screw is connected with the extrusion end cover for clamping the bearing bush through the threaded hole in a threaded manner.
Preferably, the threaded hole is arranged in the center of the extrusion end cover.
Further, the screwing assembly comprises a screwing nut in threaded connection with the lead screw and a handle fixedly connected to the screwing nut.
Further, the barrel is provided with an observation window.
The use method of the static pressure shaft bearing bush dismounting tool comprises the following steps: the extrusion end cover is obliquely arranged after penetrating through the inner diameter of the bearing bush in a horizontal mode, the lead screw extends into the static pressure shaft sleeve and is connected with the extrusion end cover, the cylinder body penetrates through the lead screw and the open end of the cylinder body is abutted to the end face of the static pressure shaft sleeve, the screwing assembly is screwed into the lead screw, the screwing assembly is rotated after the extrusion end cover is clamped with the bearing bush in a matched mode, the lead screw drives the extrusion end cover and the bearing bush to move outwards and gradually separate from the shaft sleeve until the extrusion end cover and the bearing bush enter the cylinder body, and disassembly is completed.
Furthermore, before the bearing bush is disassembled, gas nitrogen is introduced for cooling.
The utility model has the advantages that: the utility model discloses a frock is dismantled to main shaft axle bush can not hinder and the separation of main shaft axle sleeve with the main shaft axle bush through cooling extrusion mode. After being disassembled, the spindle is matched with the spindle in a grinding way. And after the precision is achieved, the bearing bush is installed back into the spindle sleeve. The maintenance precision is improved, and the maintenance efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a static pressure shaft bearing bush dismounting tool;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the original state of the bearing bush disassembly;
FIG. 4 is a schematic view of the disassembled and extruded state of the bearing bush;
FIG. 5 is a front view of the extruded end cap;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a side view of FIG. 5;
in the figure: 1. the device comprises a handle, 2, a thrust bearing, 3, a screw rod, 4, a cylinder, 5, an extrusion end cover, 6, an extrusion end cover threaded hole, 7, a screwing nut, 8, a static pressure shaft sleeve, 9 and a static pressure shaft bearing bush.
Detailed Description
In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.
Referring to the accompanying drawings 1-7, the tool for disassembling the bearing bush of the static pressure shaft comprises a cylinder body 4 with one open end and the other closed end, wherein the open end of the cylinder body is abutted against the end face of a static pressure shaft sleeve 8, the bearing bush 9 is connected to the inner diameter of the shaft sleeve 8, a lead screw 3 penetrates through the closed end of the cylinder body, a screwing component is in threaded connection with the lead screw, the lead screw 3 performs axial displacement along with the rotation of the screwing component, the screwing component is arranged outside the cylinder body and is rotatably supported with the closed end of the cylinder body through a thrust bearing 2, and the end of the lead screw is connected with an extrusion end cover 5 for clamping the bearing bush through threads.
Preferably, the extrusion end cover 5 is provided with a threaded hole, and the threaded hole is formed in the center of the extrusion end cover, so that the stress is uniform in the extrusion process, and the extrusion end cover is not prone to deflection.
Furthermore, the side surface of the extrusion end cover 5 is of a tetrahedral structure formed by alternating arc surfaces and planes, the diameter between the two planes is the smallest and smaller than the inner diameter of the bearing bush, so that the extrusion end cover can be conveniently inclined to penetrate through the inner diameter of the bearing bush; two cambered surfaces and axle bush internal diameter cooperation location, two cambered surfaces are provided with the chamfer with axle bush internal diameter complex in the one side that is close to the axle bush, guarantee that the atress is even, be convenient for with axle bush alignment and chucking location, the extrusion end cover is a circular member of cutting off both ends promptly, become an oblate, so can incline put into in the axle bush, 8 insides of axle bush have the chamfer, the chamfer and the laminating each other of axle bush internal diameter chamfer angle of 5 two cambered surfaces of extrusion end cover always, because the axle bush is the axle bush, there is slight elastic deformation when the atress, so can laminate, guarantee that the atress is even.
Further, the screwing assembly comprises a screw nut 7 in threaded connection with the screw shaft and a handle 1 fixedly connected to the screw nut. When the handle 1 rotates clockwise, the screwing nut 7 keeps rotating but the position is not changed, and the screw rod 3 does not rotate, so that the screw rod 3 and the extrusion end cover 5 are kept consistent and cannot rotate. Through the clockwise rotation of handle, the lead screw produces the displacement at the axial and pulls extrusion end cover displacement simultaneously and pulls out the axle bush, and the screw is revolved when turning to opposite, changes handle rotation direction, and the state is unchangeable.
Further, the barrel 4 is provided with an observation window, the barrel is of a visual structure, and the tool stops working after the inner bearing bush is pulled out.
The main mode that the axle bush damaged is exactly that the static pressure axle goes wrong at the in-process of oiling, leads to the oiling circulation not good, and the overheated back axle heat rises and the axle bush after locking, because continue rotatory lead to axle and axle bush looks mutual friction to produce the damage. When the bearing bush and the main shaft are directly contacted and damaged and need to be repaired, the bearing bush is disassembled, firstly, a sealing end cover at one side of a static pressure shaft sleeve is disassembled, the main shaft is cooled and drawn out, only the static pressure shaft sleeve and the bearing bush are left, then, gas nitrogen spray is introduced into the bearing bush and sprayed onto the inner wall of the bearing bush for cooling, after cooling, the bearing bush can shrink to form a gap with the shaft sleeve, then, an extrusion end cover 5 is obliquely arranged to horizontally penetrate through the inner diameter of the bearing bush 9, two supporting points are arranged on the extrusion end cover, the extrusion end cover is supported on the static pressure shaft sleeve 8 through the two points on the extrusion end cover, the extrusion end cover 5 is held, a screw rod 3 is extended into the static pressure shaft sleeve and connected with the extrusion end cover 5, a cylinder body 4 penetrates through the screw rod 3 and supports the open end of the cylinder body on the end surface of the static pressure shaft sleeve 8, a screwing assembly is screwed into the screw rod, after the extrusion end cover 5 is matched and clamped with the bearing bush 9, the screwing assembly is rotated, the screw rod drives the extrusion end cover and the extrusion end cover to move outwards, gradually separated from the shaft sleeve 8 until entering the cylinder 4, and the disassembly is completed. After disassembly and maintenance, the bearing bush and the spindle are assembled in a grinding matching mode, the bearing bush is in contact with the spindle and cannot be mutually blocked at high points, and therefore the bearing bush and the spindle are required to be mutually ground to achieve matching accuracy. The contact position of the shaft and the bearing bush is ensured to be smooth without bulges.
According to the analysis of the structure of the main shaft shell, the bearing bush dismounting mechanism cannot damage the internal copper bearing bush, the toughness of the copper bearing bush is good, but the strength of the copper bearing bush is poor, so that the design of the integral extrusion end cover 5 and the bearing bush is uniform in stress and not easy to deform. The handle 1 rotates together with the screw rod 3, the thrust bearing 2 performs thrust action, the screw rod 3 pulls the lower end to extrude the end cover 5, the extruding end cover 5 pulls the static pressure shaft bearing bush 9, and the cylinder 4 positions the static pressure shaft bearing bush. The inner bearing bush is pulled out after extrusion.
The utility model discloses a frock is dismantled to static pressure axle bush simple structure, it is convenient to dismantle, can make the even atress of axle bush, slowly pulls out, and the harmless dismantlement of the axle bush of being convenient for improves the maintenance precision.
The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (9)
1. The utility model provides a frock is dismantled to static shaft axle bush which characterized in that: open including one end, other end confined barrel, the open end of barrel offsets with the static pressure axle sleeve, and the axle bush is connected at the axle sleeve internal diameter, the blind end of barrel runs through and sets up the lead screw, and threaded connection has soon the subassembly on the lead screw, and the lead screw carries out axial displacement along with the rotation of revolving the subassembly, it sets up outside the barrel to revolve wrong subassembly, the lead screw tip can be dismantled and be connected with the extrusion end cover that is used for chucking axle bush.
2. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 1, wherein: and the minimum diameter position of the extrusion end cover is smaller than the inner diameter of the bearing bush.
3. The tool for disassembling the bearing bush of the hydrostatic shaft as claimed in claim 2, wherein: the side surface of the extrusion end cover is formed by arc surfaces and planes alternately.
4. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 3, wherein: and a chamfer matched with the inner diameter of the bearing bush is arranged on one side of the arc surface of the extrusion end cover, which is close to the bearing bush.
5. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 3, wherein: the side surface of the extrusion end cover is of a tetrahedral structure formed by alternating arc surfaces and planes, and the diameter between the two planes is the smallest.
6. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 1, wherein: the screwing component is rotatably supported with the closed end of the cylinder body through a thrust bearing.
7. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 1, wherein: the extrusion end cover is provided with a threaded hole, and the end part of the lead screw is connected with the extrusion end cover for clamping the bearing bush through the threaded hole.
8. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 7, wherein: the threaded hole is arranged in the center of the extrusion end cover.
9. The tool for disassembling the bearing bush of the hydrostatic shaft according to claim 1, wherein: the screwing assembly comprises a screwing nut in threaded connection with the lead screw and a handle fixedly connected to the screwing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643371.7U CN214818279U (en) | 2021-03-30 | 2021-03-30 | Static pressure axle bush dismantles frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643371.7U CN214818279U (en) | 2021-03-30 | 2021-03-30 | Static pressure axle bush dismantles frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214818279U true CN214818279U (en) | 2021-11-23 |
Family
ID=78760735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120643371.7U Active CN214818279U (en) | 2021-03-30 | 2021-03-30 | Static pressure axle bush dismantles frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214818279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975853A (en) * | 2021-03-30 | 2021-06-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Static pressure shaft bearing bush dismounting tool and using method thereof |
-
2021
- 2021-03-30 CN CN202120643371.7U patent/CN214818279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975853A (en) * | 2021-03-30 | 2021-06-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Static pressure shaft bearing bush dismounting tool and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111376016B (en) | Positioning and guiding tool for low-pressure turbine of engine | |
| CN104439445A (en) | A helical hole milling device with automatic hole diameter adjustment and its working method | |
| CN214818279U (en) | Static pressure axle bush dismantles frock | |
| CN104525982A (en) | Rotating center of lathe center rest | |
| CN202240605U (en) | Cross axle rotating machining clamp | |
| CN113211282B (en) | Polishing device for curved-surface metal sheet | |
| CN118905717A (en) | Ultra-low temperature medium internal-spraying type double-swing-head electric spindle | |
| CN111375635B (en) | Automatic disassembling tool for roller bearing and using method thereof | |
| CN112975853A (en) | Static pressure shaft bearing bush dismounting tool and using method thereof | |
| CN213730914U (en) | Quick grinding device of valve ball | |
| CN213034240U (en) | Burr removing machine for inner ring of spherical outside bearing | |
| CN203778784U (en) | Spindle device of gun-drill machine tool | |
| CN218874696U (en) | Inner hole key groove milling shockproof mechanism | |
| CN110641646B (en) | Water stamping dynamic sealing structure | |
| CN211308911U (en) | Water-flushing dynamic sealing structure | |
| CN212329562U (en) | Riveting device for lock rod | |
| CN210877178U (en) | Bulging tool for isolation tube of high-pressure cooler | |
| CN203622360U (en) | Ejection type bearing dismounting tool | |
| CN104259549B (en) | Cutter-shaft locking device under aluminium belt cutting machine | |
| CN223071222U (en) | A maintenance tool for a horizontal rotary pusher centrifuge | |
| CN202079377U (en) | Rolling device for bolt-connecting hole | |
| CN207840213U (en) | A kind of rotary connector suitable for lathe deep hole machining | |
| CN222589633U (en) | Pump body disassembly tool structure | |
| CN220516714U (en) | Reversing valve base decomposition tool | |
| CN213559546U (en) | Sizing mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |