CN107378840A - Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring - Google Patents
Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring Download PDFInfo
- Publication number
- CN107378840A CN107378840A CN201710795931.9A CN201710795931A CN107378840A CN 107378840 A CN107378840 A CN 107378840A CN 201710795931 A CN201710795931 A CN 201710795931A CN 107378840 A CN107378840 A CN 107378840A
- Authority
- CN
- China
- Prior art keywords
- round nut
- sleeve
- machine shaft
- assembly
- inner ring
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
Abstract
Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring, it is characterized in that the sleeve using set card and with set card connection, the periphery for being stuck in round nut will be covered, sleeve is enclosed on outside machine shaft and beyond the end face of machine shaft, rotating torque is transferred on set card by the cooperation of sleeve and Torque wrench, drive round nut to rotate, realize fastening of the round nut on machine shaft or unscrew.The round nut that the present invention is solved on machine shaft can produce interference using common Torque wrench and sleeve dismounting with electric motor end cap, causing the dismounting of round nut wastes time and energy, efficiency is low and difficult big technical problem, avoid that machine shaft and end cap are caused to damage when round nut dismounts, realize reliable round nut, safety and efficient dismounting.
Description
Technical field
The present invention relates to a kind of assembly and disassembly methods and frock of the round nut for fixed traction motor bearings inner ring, belong to and lead
Draw motor assembling field.
Background technology
Commonly use round nut axial restraint bearing inner race on the electric car traction motor of low-floor rail at this stage, round nut with
Screw thread gear on machine shaft coordinates, and fastens vertically, round nut is pressed on bearing inner race.The end cap of motor is arranged on axle
The periphery of inner ring is held, because the structure of electric motor end cap limits, causes round nut to be fastened and dismantled with Torque wrench and sleeve
When, electric motor end cap can form interference to operation, and the fastening and dismounting for causing round nut are wasted time and energy, and efficiency is low and difficult big, and
And in disassembly process, easily cause the damage to end cap and machine shaft.
The A of CN 105922181, a kind of round nut device for screwing up, including input mechanism and tightening mechanism are disclosed, it is described to twist
Tight mechanism includes the second planetary gear, key chuck and dog chuck；Second planetary gear includes the second sun gear, ring gear and second
Planetary gear；Second sun gear and ring gear engage with second planetary gear；Key chuck and second planetary gear
Wheel shaft is relatively fixed；The ring gear is relatively fixed with the dog chuck；The output of the input mechanism and second sun
Wheel drive connects；The key chuck, the dog chuck and the second sun gear are coaxially disposed and can relatively rotated between three.
In this scheme, larger output torque can be obtained to input less moment of torsion, realize and turn round under less moment of torsion input condition
Effective fastening of the larger round nut of square demand.But can not solve to produce between electric motor end cap when round nut dismounts in traction electric machine
Raw interference problem.
The A of CN 106122228, it is related to a kind of round nut and its locking fixture, round nut is in annular shape, its outer shroud circumference
There is groove on face, there is the internal thread for being easy to screw on its inner ring circumference side；Including fixed block, connecting plate and claw,
Fixed block is arranged on connecting plate upper surface, and claw is arranged on connecting plate lower end, and is located at and round nut lateral grooves position correspondence
Place.The advantage of the invention is that：Using round nut, the not convenient installation site tightened with spanner in side is adapted to, especially
It is deeper hole；Using the indent arc groove in the face for being distributed on round nut, convenient processing and manufacture, locked with locking fixture
During, contact surface is big, is easy to exert a force.In this scheme, using the locking fixture coordinated with round nut, claw firmly grasps round nut
The groove of side, fixed block is firmly grasped using torque wrench, position will be tightened and be transformed into from the nut side of routine on locking fixture
Fixed block, be easy to tighten.And the screw thread that the round nut on traction electric machine is fastened on machine shaft is blocked, when it fastens and dismantled
The interference of end cap is not only considered, it is contemplated that the interference of machine shaft.
The U of CN 205630449, in one end of a cylinder being axially arranged with and torque spanner shape along the cylinder
The interface to match, in the other end being axially arranged with and round nut external teeth mouth kissing to be tightened along the cylinder of the cylinder
Close port.This scheme is an ordinary cartridge for being used to fasten round nut, is applied to the dismounting of round nut on machine shaft, also needs
Further improve.
The content of the invention
The assembly and disassembly methods and frock of the round nut for fixed traction motor bearings inner ring of the present invention, solve motor and turn
Round nut on axle can produce interference using common Torque wrench and sleeve dismounting with electric motor end cap, cause the dismounting of round nut
Wasting time and energy, efficiency is low and difficult big technical problem, avoids that machine shaft and end cap are caused to damage when round nut dismounts,
Realize reliable round nut, safety and efficient dismounting.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
Assembly and disassembly methods for the round nut of fixed traction motor bearings inner ring, it is characterised in that block connection using set card and with set
Sleeve, be stuck in the periphery of round nut by covering, it is outer and exceed the end face of machine shaft that sleeve is enclosed on machine shaft, passes through sleeve
Rotating torque is transferred on set card by the cooperation with Torque wrench, is driven round nut to rotate, is realized round nut on machine shaft
Fastening or unscrew.
Preferably, by one end of described sleeve with set card it is coaxial be detachably connected, the other end stretching machine shaft end
Face coordinates with Torque wrench.
Preferably, annular protrusion is designed in sleeve and one end of set card connection, described set is installed on annular protrusion.
Preferably, multiple axially disposed through holes are opened up on described annular protrusion, positioning hole is opened up on set card
Corresponding with through hole respectively with connection through hole, alignment pin is stretched into positioning hole through through hole, and sleeve and set are blocked into circumferentially positioned, spiral shell
Bolt is through through hole and connection through hole and fastens, and sleeve is connected with set card.
Preferably, the internal diameter of described set card is more than the internal diameter of sleeve, and external diameter is more than or equal to the external diameter of annular protrusion, axially
Length is more than or equal to the thickness of round nut.
Preferably, at least there is a dog corresponding with round nut groove on the inwall of described set card, dog and
Round nut groove male-female engagement, makes set card be stuck in the periphery of round nut.
Preferably, the internal diameter of described sleeve is more than the external diameter that the screw thread of machine shaft is kept off, when fastening round nut, sleeve
Inwall do not produced with the screw thread of machine shaft gear and contact interference, sleeve inner end face is to covering the distance of card outer face more than motor turn
Axial end keeps off the distance of inner face to the screw thread of machine shaft, when fastening round nut, the inner face of sleeve not with machine shaft
End face produce contact interference.
Preferably, design with one end that Torque wrench coordinates in described sleeve and matched with the ratchet sleeve square toes of torque spanner
Torque socket, described torque socket is axially arranged along sleeve and is formed in one structure with sleeve, the axial direction of torque socket
The length of the ratchet sleeve square toes for the torque spanner that length is equal to, external diameter is less than the external diameter of sleeve, and wall thickness is more than the wall thickness of sleeve.
Preferably, described sleeve and set card are designed to integrated formed structure.
Using the dismounting frock of the assembly and disassembly methods of the above-described round nut for fixed traction motor bearings inner ring, its
Be characterised by including set card and the sleeve with set card connection, set is stuck in the periphery of round nut, sleeve be enclosed on outside machine shaft and
Beyond the end face of machine shaft, coordinate with Torque wrench.
The rotating torque of Torque wrench is delivered on round nut by the present invention using set card and sleeve, to realize round nut
Dismounting, set card are stuck in round nut periphery, and set card and sleeve connection, sleeve are enclosed on outside machine shaft and beyond the end of machine shaft
Face, quite to the stress acting surface of round nut is extended axially outwardly to outside machine shaft end face, Torque wrench acts on set
Remote with electric motor end cap on cylinder and axially spaced with machine shaft, the round nut solved on machine shaft uses usual forces
Square wrench and sleeve dismounting can produce interference with electric motor end cap, and causing the dismounting of round nut wastes time and energy, and efficiency is low and difficult big
Technical problem, reduce machine shaft on round nut dismounting labor intensity, improve disassembly efficiency.
Torque wrench is not acted directly on round nut, remote with electric motor end cap, axially spaced with machine shaft, can be kept away
Exempt from that machine shaft and end cap are caused to damage when round nut dismounts, realize reliable round nut, safety and efficient dismounting.
Brief description of the drawings
Fig. 1 is structural representation of the dismounting tooling sleeve of the present invention on the round nut for fixed traction motor bearings inner ring
Figure.
Fig. 2 is the structural representation of sleeve.
Fig. 3 is the side view of set card.
Fig. 4 is Fig. 3 A-A to schematic diagram.
Fig. 5 is the sleeve structural representation equipped with set card.
Embodiment
Embodiments of the invention are elaborated with reference to Fig. 1 to Fig. 5.
Assembly and disassembly methods for the round nut of fixed traction motor bearings inner ring, it is characterised in that using set card 2 and with set
The sleeve 1 of the connection of card 2, will be covered and block 2 peripheries for being stuck in round nut, and sleeve 1 is enclosed on outside machine shaft and beyond the end of machine shaft
Face, rotating torque is transferred on set card 2 by the cooperation of sleeve 1 and Torque wrench, drives round nut to rotate, realizes round nut
Fastening on machine shaft is unscrewed.
As shown in figure 1, set card 2 is stuck in the periphery of round nut 100, sleeve 1 is enclosed on outside machine shaft 101 and turned beyond motor
The end face of axle 101, when preventing that round nut 100 from fastening, sleeve 1 is in contact or touched with the end face of machine shaft 101 axially movable
Hitting, sleeve 1 coordinates with Torque wrench, and rotating torque is passed into set card 2, and set card 2 rotates, then drives round nut to rotate, so as to
Realize fastening of the round nut on machine shaft or tighten.
Wherein, from Fig. 1 and Fig. 5 as can be seen that by one end of described sleeve 1 with set block 2 it is coaxial be detachably connected, separately
The end face of machine shaft is stretched out in one end and Torque wrench coordinates.Projected radially outward in one end design that sleeve 1 is connected with set card 2
Annular protrusion 11, described set card 2 is on the annular protrusion 11., should basis in the annular protrusion 11 on designing sleeve 1
The structure of electric motor end cap is designed, and ensures that sleeve 1 does not interfere after being connected with set card 2 with electric motor end cap.
Specifically, opening up multiple axially disposed through holes 12 on described annular protrusion 11, it is fixed to be opened up on set card 2
Position hole 21 and connection through hole 22 are corresponding with through hole 12 respectively, and alignment pin 3 is stretched into positioning hole 21 through through hole 12, by sleeve 1
Circumferentially positioned with set card 2, bolt 4 is through through hole 12 and connection through hole 22 and fastens, and sleeve 1 is connected with set card 2.With calmly
Position pin 3 is circumferentially positioned by sleeve 1 and set card 2, is fastenedly connected sleeve 1 and set card 2 with bolt 4, ensures that sleeve 1 connects with set card 2
Integral structural stability.
Wherein, the internal diameter of described set card 2 is more than the internal diameter of sleeve 1, and external diameter is more than or equal to the external diameter of annular protrusion 11, subtracted
The radial space occupancy of few sleeve 2, after sleeve 1 is connected with set card 2, the maximum outside diameter on sleeve 1, which is not more than, covers the outer of card 2
Footpath, ensure that sleeve 1 does not interfere with electric motor end cap, axial length is more than or equal to the thickness of round nut, ensures torque transmission
Reliability.At least there is a dog 23 corresponding with round nut groove, dog 23 and circle spiral shell on the inwall of described set card 2
Female groove male-female engagement, makes set card 2 be stuck in the periphery of round nut.As described in Figure 3, the quantity of dog 23 is four, with round nut
The quantity of groove is equal.
Specifically, the internal diameter of described sleeve 1 is more than the external diameter that the screw thread of machine shaft is kept off, when fastening round nut, set
The inwall of cylinder 1 does not produce with the screw thread gear of machine shaft and contacts interference, because the external diameter of the screw thread shelves of motor pavilion axle is typically big
In the external diameter of machine shaft, so the internal diameter of sleeve 1 need to be more than the external diameter that the screw thread of machine shaft is kept off, to prevent round nut from fastening
When, the screw thread gear of sleeve 1 and machine shaft is in contact, and makes sleeve 1 can not continue axially movable, to cause round nut complete
Full fastening.The inner face of sleeve 1, which to the distance L of machine shaft end face is more than round nut and is fastened on the screw thread of machine shaft, to be blocked most
Big axial displacement, when fastening round nut, the inner face of sleeve 1 does not produce with the end face of machine shaft contacts interference, prevents from justifying
Nut also it is not completely tight in place when, the inner face of sleeve 1 and the end face of machine shaft are in contact, and sleeve 1 is not continued
Axially movable, round nut is caused not fasten completely.
Specifically, one end design and the ratchet sleeve square toes of torque spanner that coordinate in described sleeve 1 and Torque wrench
The torque socket 13 matched somebody with somebody, described torque socket 13 is axially arranged along sleeve 1 and is formed in one structure with sleeve 1, increases power
The reliability of square transmission, the length of the ratchet sleeve square toes for the torque spanner that the axial length of torque socket 13 is equal to, external diameter are less than
The external diameter of sleeve 1, and wall thickness be more than sleeve 1 wall thickness, increase torque socket 13 intensity, effectively prevent torque socket 13 by
Deformed during power.
The present invention also protects a kind of dismounting using the above-described round nut for fixed traction motor bearings inner ring
The dismounting frock of method, it is characterised in that including set card 2 and the sleeve 1 being connected with set card 2, set card 2 is stuck in the periphery of round nut,
Sleeve 1 is enclosed on outside machine shaft and beyond the end face of machine shaft, coordinated with Torque wrench.Above-described dismounting frock, phase
When to the stress acting surface of round nut is extended axially outwardly to outside machine shaft end face, Torque wrench is acted on sleeve 1,
Remote with electric motor end cap and axially spaced with machine shaft, the round nut solved on machine shaft uses common torque plate
Hand and sleeve dismounting can produce interference with electric motor end cap, and causing the dismounting of round nut wastes time and energy, and efficiency is low and difficult big skill
Art problem, the labor intensity of round nut dismounting on machine shaft is reduced, improves disassembly efficiency.Torque wrench does not act directly on circle
It is remote with electric motor end cap on nut, it is axially spaced with machine shaft, it can avoid when round nut dismounts to machine shaft and end
Lid causes to damage, and realizes reliable round nut, safety and efficient dismounting.
Completely description is carried out to the technical scheme of embodiments of the invention, it is necessary to which explanation is described above in association with accompanying drawing
Embodiment be only the present invention part of the embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained on the premise of not making creative work, belongs to the scope of protection of the invention.
Claims (9)
1. the assembly and disassembly methods of the round nut for fixed traction motor bearings inner ring, it is characterised in that using set card（2）With with set
Card（2）The sleeve of connection（1）, set is blocked（2）It is stuck in the periphery of round nut, sleeve（1）It is enclosed on outside machine shaft and exceeds motor
The end face of rotating shaft, passes through sleeve（1）Rotating torque is transferred to set card by the cooperation with Torque wrench（2）On, drive round nut to turn
It is dynamic, realize fastening of the round nut on machine shaft or unscrew.
2. the assembly and disassembly methods of the round nut according to claim 1 for fixed traction motor bearings inner ring, its feature exist
In by described sleeve（1）One end with set block（2）Coaxially it is detachably connected, the other end stretches out end face and the torque of machine shaft
Wrench coordinates.
3. the assembly and disassembly methods of the round nut according to claim 2 for fixed traction motor bearings inner ring, its feature exist
In in sleeve（1）Block with set（2）One end design annular protrusion of connection（11）, described set card（2）Mounted in annular protrusion（11）
On.
4. the assembly and disassembly methods of the round nut according to claim 3 for fixed traction motor bearings inner ring, its feature exist
In in described annular protrusion（11）On open up multiple axially disposed through holes（12）, block in set（2）On open up positioning hole
（21）With connection through hole（22）Respectively with through hole（12）It is corresponding, alignment pin（3）Through through hole（12）Stretch into positioning hole（21）In,
By sleeve（1）Block with set（2）It is circumferentially positioned, bolt（4）Through through hole（12）With connection through hole（22）And fasten, by sleeve（1）
Block with set（2）It is connected.
5. the assembly and disassembly methods of the round nut according to claim 3 for fixed traction motor bearings inner ring, its feature exist
In described set card（2）Internal diameter be more than sleeve（1）Internal diameter, external diameter is more than or equal to annular protrusion（11）External diameter, it is axially long
Thickness of the degree more than or equal to round nut.
6. the assembly and disassembly methods of the round nut according to claim 1 for fixed traction electricity bearing inner race, it is characterised in that
Described set card（2）Inwall at least there is a dog corresponding with round nut groove（23）, dog（23）With circle spiral shell
Female groove male-female engagement, makes set card（2）It is stuck in the periphery of round nut.
7. the assembly and disassembly methods of the round nut according to claim 2 for fixed traction motor bearings inner ring, its feature exist
In described sleeve（1）Internal diameter be more than the external diameter that the screw thread of machine shaft is kept off, when fastening round nut, sleeve（1）Inwall
Do not produced with the screw thread gear of machine shaft and contact interference, sleeve（1）Inner face is more than round nut to the distance of machine shaft end face
The maximum axial displacement that the screw thread of machine shaft is blocked is fastened on, when fastening round nut, sleeve（1）Inner face not with motor
The end face of rotating shaft produces contact interference.
8. the assembly and disassembly methods of the round nut according to claim 2 for fixed traction motor bearings inner ring, its feature exist
In in described sleeve（1）The torque socket matched with one end design that Torque wrench coordinates with the ratchet sleeve square toes of torque spanner
（13）, described torque socket（13）Along sleeve（1）Axially arranged and and sleeve（1）Be formed in one structure, torque socket
（13）The length of the ratchet sleeve square toes of torque spanner that is equal to of axial length, external diameter is less than sleeve（1）External diameter, and wall thickness is big
In sleeve（1）Wall thickness.
9. using the round nut for fixed traction motor bearings inner ring described in claim 1 to any one of claim 8
The dismounting frock of assembly and disassembly methods, it is characterised in that block including set（2））Block with set（2）The sleeve of connection（1）, set card（2）It is stuck in
The periphery of round nut, sleeve（1）It is enclosed on outside machine shaft and beyond the end face of machine shaft, coordinates with Torque wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795931.9A CN107378840A (en) | 2017-09-06 | 2017-09-06 | Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795931.9A CN107378840A (en) | 2017-09-06 | 2017-09-06 | Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107378840A true CN107378840A (en) | 2017-11-24 |
Family
ID=60351794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710795931.9A Pending CN107378840A (en) | 2017-09-06 | 2017-09-06 | Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107378840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238646A (en) * | 2019-06-11 | 2019-09-17 | 广州铁路职业技术学院（广州铁路机械学校） | Rail traction motor driving gear, which is surveyed, fills integrated tooling and its installation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6536311B2 (en) * | 2000-09-15 | 2003-03-25 | Jonathan Mark Heaven | Mechanical hand tool called the swing arm |
| CN2920548Y (en) * | 2006-06-02 | 2007-07-11 | 广西玉柴机器股份有限公司 | Internal inserting sleeve for tightening round nut |
| CN202114676U (en) * | 2011-06-24 | 2012-01-18 | 烟台禹成机械有限公司 | Auxiliary mounting device for locking nut of planet gear speed reducer |
| CN205254858U (en) * | 2015-11-12 | 2016-05-25 | 武汉格瑞拓机械有限公司 | General socket type round nut special spanner |
| CN205254856U (en) * | 2015-11-15 | 2016-05-25 | 武汉格瑞拓机械有限公司 | General adjustable nodal pattern circle nut runner |
| CN205521092U (en) * | 2016-04-01 | 2016-08-31 | 安徽科达埃尔压缩机有限公司 | A installation device that is used for axle head round nut of roots blower rotation axis |
| CN205614554U (en) * | 2016-03-24 | 2016-10-05 | 四川建设机械（集团）股份有限公司 | Box spanner for round nut |
-
2017
- 2017-09-06 CN CN201710795931.9A patent/CN107378840A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6536311B2 (en) * | 2000-09-15 | 2003-03-25 | Jonathan Mark Heaven | Mechanical hand tool called the swing arm |
| CN2920548Y (en) * | 2006-06-02 | 2007-07-11 | 广西玉柴机器股份有限公司 | Internal inserting sleeve for tightening round nut |
| CN202114676U (en) * | 2011-06-24 | 2012-01-18 | 烟台禹成机械有限公司 | Auxiliary mounting device for locking nut of planet gear speed reducer |
| CN205254858U (en) * | 2015-11-12 | 2016-05-25 | 武汉格瑞拓机械有限公司 | General socket type round nut special spanner |
| CN205254856U (en) * | 2015-11-15 | 2016-05-25 | 武汉格瑞拓机械有限公司 | General adjustable nodal pattern circle nut runner |
| CN205614554U (en) * | 2016-03-24 | 2016-10-05 | 四川建设机械（集团）股份有限公司 | Box spanner for round nut |
| CN205521092U (en) * | 2016-04-01 | 2016-08-31 | 安徽科达埃尔压缩机有限公司 | A installation device that is used for axle head round nut of roots blower rotation axis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238646A (en) * | 2019-06-11 | 2019-09-17 | 广州铁路职业技术学院（广州铁路机械学校） | Rail traction motor driving gear, which is surveyed, fills integrated tooling and its installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201192829Y (en) | Auxiliary tool of air-actuated or electric driven spanners | |
| CN210588042U (en) | Device for screwing nut of main shaft of aircraft engine | |
| CN104084923B (en) | A kind of sleeve electric wrench connected for screw thread steel | |
| CN202934508U (en) | Gear type fastening tool for bolts | |
| JP2005042911A (en) | Object tightening/loosening method | |
| CN203438177U (en) | Tightening tooling of oil cap | |
| CN107378840A (en) | Assembly and disassembly methods and frock for the round nut of fixed traction motor bearings inner ring | |
| CN204262513U (en) | Shaft forgings stepping rotates clamping tooling | |
| CN106239428B (en) | A kind of device of quick assembling stud | |
| CN203227703U (en) | Shaft end locking device for section steel straightening machine | |
| CN206869429U (en) | A kind of novel hydraulic stretcher for adapting to plurality of specifications bolt | |
| CN207326882U (en) | A kind of tool system for steam turbine for nuclear power station rotor to wheel hydraulic couplings bolt disassembly | |
| CN105922181A (en) | Round nut tightening device | |
| WO2018152765A1 (en) | Method for assembling inner ring threaded assembly apparatus of wind power locking plate | |
| CN209364501U (en) | A kind of convenient pneumatic flange nut tightening device | |
| CN110355712A (en) | A kind of more bolt synchronous fastening tools and its application method | |
| CN207448340U (en) | A kind of power of determining torque box spanner | |
| CN211992710U (en) | Round nut dismounting tool | |
| KR20090115601A (en) | Hub Bearing Mounting Structure of Automobile | |
| CN206234281U (en) | A kind of tapered sleeve drive mechanism | |
| CN203221444U (en) | Wrench screwing nut of high-pressure oil pipe | |
| CN208128063U (en) | A kind of motor driving structure of new-energy automobile | |
| CN206445739U (en) | Adjustable torque limiter | |
| CN103909486B (en) | High-pressure oil pipe nut screwing clamping spanner | |
| CN207470629U (en) | Closed type bearing disassembling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |