CN107717808A - A kind of chain drive spanner - Google Patents
A kind of chain drive spanner Download PDFInfo
- Publication number
- CN107717808A CN107717808A CN201711212060.XA CN201711212060A CN107717808A CN 107717808 A CN107717808 A CN 107717808A CN 201711212060 A CN201711212060 A CN 201711212060A CN 107717808 A CN107717808 A CN 107717808A
- Authority
- CN
- China
- Prior art keywords
- sprocket
- driven
- driving shaft
- housing
- chain
- 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
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/52—Chain or strap wrenches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a kind of chain drive spanner, including：Housing, driving shaft, drive sprocket, driven shaft, driven sprocket and chain.It is correspondingly provided with first through hole in two relative side walls of one end of housing, the second through hole is correspondingly provided with two relative side walls of the other end of housing；Drive sprocket, which is arranged, to be fixed on driving shaft, and driving shaft is rotated in first through hole by bearing；Driving shaft stretches out from the side of housing, and external part is provided with the regular hexagon boss for being used for connecting ratchet spanner；Driven sprocket, which is arranged, to be fixed on driven shaft, and driven shaft is rotated in the second through hole by bearing；Driven shaft stretches out from the opposite side of housing, and external part is provided with the square protrusions for being used for connecting wrench socket；Drive sprocket engages connection with driven sprocket by chain.Structure of the present invention simplifies, using reliable, especially suitable for the fastening or dismounting of small space inner bolt, coordinates ratchet spanner and wrench socket to use, overhaul efficiency is high, applied widely.
Description
Technical field
The present invention relates to plant equipment processing technique field, and in particular to a kind of chain drive spanner.
Background technology
Hydrogenerator is made up of stator, rotor, and rotor rotates at a high speed in stator, to ensure that stator bar is fully cut
Rotor rotary magnetic field wire, the gap between rotor and stator are normally only set to 30mm.Generator amature is made up of multigroup magnetic pole, is anti-
Rotation stop runs at high speed and collided between middle magnetic pole, magnetic pole block is provided between magnetic pole, magnetic pole block passes through stock closely-pitched spiral shell
Bolt is fixed on rotor.In unit maintenance, need after first magnetic pole block is dismantled, rotor magnetic pole could be dismantled and carry out careful inspection
Look into.Because magnetic pole block is arranged on magnetic pole middle part, can not be arrived in 1000mm or so, common wrench apart from upper and lower ends
At the connecting bolt of magnetic pole block, and rotor only has 30mm with stator gap, and other instruments cannot be introduced into, can only be by common wrench
Welding lengthens.In actual applications, lengthened because spanner welds, spanner total length is more than 1000mm, during demounting bolt
Spanner easily shakes, and spanner bayonet socket easily disengages with nut, constantly rocks in dismounting and easily causes killing for fine thread,
Ultimately resulting in bolt can not disassemble.
The content of the invention
In order to solve the above technical problems, the present invention adopts the technical scheme that：Including：Housing, driving shaft, drive sprocket,
Driven shaft, driven sprocket and chain；The housing is in flat, is left and right two parts along chain drive face subdivision, left and right two
Divide the cavity that drive sprocket, driven sprocket and chain are accommodated to being encircled into；Correspondingly set in two relative side walls of one end of housing
There is a first through hole, the second through hole is correspondingly provided with two relative side walls of the other end of housing；The drive sprocket is arranged fixation
On driving shaft, driving shaft is rotated in first through hole by bearing；One end of driving shaft is stretched out from a side body, external part
Provided with regular hexagon boss；The driven sprocket, which is arranged, to be fixed on driven shaft, and driven shaft is rotated logical located at second by bearing
In hole；One end of driven shaft is stretched out from another side body, and external part is provided with square protrusions；Drive sprocket passes through with driven sprocket
Chain engagement connection.
Chain wrench according to bolt specification to be removed in use, select suitable wrench socket, by the one of wrench socket
End is socketed in the square boss of driven shaft, and the other end of wrench socket is socketed on bolt to be removed.In driving shaft just
Ratchet spanner is installed, rotating ratchet wrench drives drive sprocket to rotate, and torque is delivered to sleeve by chain on hexagon boss
On so as to turning bolt to be removed.
Further, the inner ring of the bearing is lined with endoporus as square bushing, and the both ends of driving shaft and driven shaft are equal
Provided with the square protrusions being adapted with the bushing endoporus, driving shaft and driven shaft are connected by square protrusions and bearing
Connect.The design that square inner bore coordinates with boss, structure are simplified, using reliable.
Further, the bushing coordinates with driving shaft and driven shaft for gap.Gap coordinates the dismounting for facilitating axle.
Further, the drive sprocket is equal with the reference diameter and the number of teeth of driven sprocket.It is such design be for
Keep both sides torque equal in torque transmittance process.When demounting bolt moment requires, apply in drive sprocket side and advise
Fixed torque, it is exportable defined torque by movable sprocket side.
Further, the driving shaft and drive sprocket are interference fits, and driving shaft passes through key connection with drive sprocket；Institute
It is interference fits that driven shaft, which is stated, with driven sprocket, and driven shaft passes through key connection with driven sprocket.Interference fits facilitate tearing open for sprocket wheel
Dress, key connection is firm, will not relatively rotate and displacement.
Further, left and right two parts of the housing are connected together by groove and boss.Be connected together easy disassembly,
Design simplicity, using reliable.
Further, the outer ring of the bearing and the hole wall of the first through hole of housing and the second through hole weld.Using so
Design make features simple structure, using reliable.
In order that chain drive is relatively reliable, can also increase the tight mechanisms of chain Zhang in housing, for example, drive sprocket with
Increase Zhang bearings up pulley between driven sprocket, tensioning wheel be located at the outside of the connecting line of drive sprocket and driven sprocket, drive sprocket and
The spacing A of the connecting line of driven sprocket to tensioning wheel is adjustable.Chain engages with drive sprocket, driven sprocket and tensioning wheel simultaneously.
The installation site of tensioning wheel is adjusted, spacing A increases can the tight chains of Zhang.
Beneficial effects of the present invention：
1st, the Chain wrench of this programme because profile it is flat long and narrow, suitable for the fastening or dismounting of small space inner bolt.
2nd, chain drive, transmission efficiency are used in this programme.
3rd, this programme can coordinate ratchet spanner to use, and improve overhaul efficiency.
4th,, can be with according to the different size of bolt to be removed because the square interface of the wrench socket of certain specification is identical
The suitable wrench socket of unrestricted choice, wrench socket is coordinated to use the scope of application for expanding the present invention.
Brief description of the drawings
Fig. 1 is a kind of positive structure diagram (removal right shell) of embodiment of the present invention.
Fig. 2 is Fig. 1 top view (removal chain).
Fig. 3 (a) is the structural representation of driving shaft in Fig. 1；(b) be (a) A-A profiles；(c) be (a) B-B sections
Figure；(d) be (a) C-C profiles.
Fig. 4 (a) is the structural representation of driven shaft in Fig. 1；(b) be (a) D-D profiles；(c) it is that (a) 7 E-E is cutd open
Face figure.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the technology below in conjunction with accompanying drawing to the present invention
Scheme is clearly and completely described.
The implication of heretofore described " inside and outside " referred to relative to equipment itself, the direction inside sensing equipment
To be interior, otherwise it is outer.
The implication of heretofore described " radial direction " refers to the radial direction of object, and " axial direction " refers to what is intersected vertically with radial direction
Direction.
Refering to Fig. 1 and Fig. 2, a kind of chain drive spanner, including：Housing 1, driving shaft 2, drive sprocket 3, driven shaft 4, from
Movable sprocket 5 and chain 6.
Housing 1 is in flattened rectangular, is left and right two parts 11,12 along chain drive face subdivision, the split surface of left shell 11
Annular boss 1111 is provided with, annular boss 1111 is formed by split surface is outstanding.The split surface of right shell 12 is provided with
Annular groove 1211, annular groove 1211 are formed by inward-facing collapse of subdivision, and annular groove 1211 blocks with annular protrusion 1111
Close connection.Left shell 11 is contained in right shell 12 to being encircled into cavity 13, drive sprocket 3, driven sprocket 5 and chain 6
In cavity 13.Be correspondingly provided with first through hole 111 in two relative side walls of one end of housing 1, the other end of housing 1 it is relative two
The second through hole 112 is correspondingly provided with individual side wall.The outer ring spot welding of bearing 113 is connected to the through hole 112 of first through hole 111 and second
Interior, the inner ring of bearing 113 is lined with the bushing (not shown) of square endoporus.In the present embodiment, the width of bearing 113 is more than
The width of housing 1, the side that bearing 113 is located in housing 1 is concordant with the medial surface of housing 1, and the another side of bearing 113 is stretched out
Housing 1, so design can be such that the thickness of Chain wrench reduces simultaneously and ensure that the inner chamber with one fixed width is used to accommodate sprocket wheel.
Refering to Fig. 3 (a), (b), (c), (d), driving shaft 2 is cylindric in variable cross-section, the outer peripheral face at cylinder both ends radially to
Contract forms square protrusions 21, formed with the shaft shoulder 211 between cylinder and square protrusions.The wherein square protrusions of side
The outer peripheral face of 21 end radially-inwardly shrinks to form regular hexagon boss 22, and regular hexagon boss 22 is used to be socketed ratchet wrench
Hand.The design of the shaft shoulder prevents the vibration of axle, ensures that Chain wrench performance is reliable.
Refering to Fig. 4 (a), (b), (c), driven shaft 4 is cylindric in variable cross-section, and the outer peripheral face at cylinder both ends is radially-inwardly received
Contracting forms square protrusions 41, formed with the shaft shoulder 411 between cylinder and square protrusions 41.The wherein square protrusions 41 of side
It is slightly long, for muff-coupling wrench sleeve.The design of the shaft shoulder prevents the vibration of axle, ensures that Chain wrench performance is reliable.
Refering to Fig. 2, drive sprocket 3 is sleeved on by key (not shown) on the face of cylinder of driving shaft 2, driving shaft 2
The square protrusions 21 at both ends insert the inner ring of the bearing 113 of first through hole 112 and the gap of bearing 113 is connected, bearing 113
A side be stuck on the shaft shoulder 211.The regular hexagon boss 22 that driving shaft 2 stretches out one end of right shell 12 is used to be socketed spine
Wheel spanner.In the present embodiment, the both ends of driving shaft are stretched out from housing, also can only connect spine in other embodiments
One end of wheel spanner is stretched out from housing.
Refering to Fig. 2, driven sprocket 5 is sleeved on by key (not shown) on the face of cylinder of driven shaft 4, driven shaft 4
The square protrusions 41 at both ends insert the endoporus of the bushing of the bearing 113 of the second through hole 112 and the gap of bearing 113 is connected,
One side of bearing 113 is stuck on the shaft shoulder 411.The square protrusions 41 that driven shaft 4 stretches out one end of left shell 11 are used for
Muff-coupling wrench sleeve.In the present embodiment, the both ends of driven shaft are stretched out from housing, can also only have in other examples
One end of connection wrench socket is stretched out from housing.
Refering to Fig. 1 and Fig. 2, drive sprocket 3 is equal with the diameter and the number of teeth of driven sprocket 5, drive sprocket 3 and driven sprocket
5 engage connection by chain 6.
Illustrate the operation principle of the present invention below in conjunction with the accompanying drawings：
In use, suitable wrench socket is selected according to bolt specification to be removed.One end of wrench socket is socketed in
In the square boss 41 of driven shaft 4, the other end of wrench socket is socketed on bolt to be removed.On positive six side of driving shaft 2
Ratchet spanner is installed on shape boss 22.Rotating ratchet wrench, drive sprocket 3 rotate, and chain 6 drives driven sprocket 5 to rotate, torque
It is delivered to by chain 6, driven sprocket 5, driven shaft 4 on sleeve so as to turn bolt to be removed.
It is prior art not do the part illustrated in description above, or is achieved by the prior art.
Claims (7)
- A kind of 1. chain drive spanner, it is characterised in that including：Housing, driving shaft, drive sprocket, driven shaft, driven sprocket and Chain；The housing is in flat, is left and right two parts along chain drive face subdivision, and left and right two parts accommodate actively to being encircled into The cavity of sprocket wheel, driven sprocket and chain；Be correspondingly provided with first through hole in two relative side walls of one end of housing, housing it is another The second through hole is correspondingly provided with two relative side walls of one end；The drive sprocket, which is arranged, to be fixed on driving shaft, and driving shaft leads to Bearing is crossed to rotate in first through hole；One end of driving shaft is stretched out from a side body, and external part is provided with regular hexagon boss；Institute State driven sprocket and be arranged and be fixed on driven shaft, driven shaft is rotated in the second through hole by bearing；One end of driven shaft from Another side body stretches out, and external part is provided with square protrusions；Drive sprocket engages connection with driven sprocket by chain.
- 2. chain drive spanner according to claim 1, it is characterised in that the inner ring of the bearing is lined with endoporus as pros The both ends of the bushing of shape, driving shaft and driven shaft are equipped with the square protrusions being adapted with the bushing endoporus, driving shaft and Driven shaft is connected by square protrusions with bearing.
- 3. chain drive spanner according to claim 2, it is characterised in that between the bushing and driving shaft and driven shaft are Gap coordinates.
- 4. chain drive spanner according to claim 1, it is characterised in that the indexing of the drive sprocket and driven sprocket Circular diameter and the number of teeth are equal.
- 5. chain drive spanner according to claim 1, it is characterised in that the driving shaft is matched somebody with somebody with drive sprocket for transition Close, driving shaft passes through key connection with drive sprocket；The driven shaft and driven sprocket are interference fits, driven shaft and driven sprocket Pass through key connection.
- 6. chain drive spanner according to claim 1, it is characterised in that left and right two parts of the housing pass through groove And boss is connected together.
- 7. chain drive spanner according to claim 1, it is characterised in that the outer ring of the bearing and the first of housing leads to The hole wall of hole and the second through hole welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212060.XA CN107717808A (en) | 2017-11-28 | 2017-11-28 | A kind of chain drive spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212060.XA CN107717808A (en) | 2017-11-28 | 2017-11-28 | A kind of chain drive spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107717808A true CN107717808A (en) | 2018-02-23 |
Family
ID=61219760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212060.XA Pending CN107717808A (en) | 2017-11-28 | 2017-11-28 | A kind of chain drive spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107717808A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555827A (en) * | 2018-03-09 | 2018-09-21 | 中广核核电运营有限公司 | Exciter rotor synchronizes attaching/detaching apparatus and exciter rotor synchronizes assembly and disassembly methods |
| CN108581904A (en) * | 2018-05-28 | 2018-09-28 | 国家电网公司 | Restricted clearance is driven socket wrench |
| CN110744482A (en) * | 2019-11-18 | 2020-02-04 | 山西省工业设备安装集团有限公司 | Narrow space bolt fastening device |
| CN111590520A (en) * | 2020-05-25 | 2020-08-28 | 贵州电网有限责任公司 | Chain plate hammer |
| CN111590522A (en) * | 2020-05-25 | 2020-08-28 | 贵州电网有限责任公司 | Double-end chain plate |
| CN112664875A (en) * | 2020-12-29 | 2021-04-16 | 曹隆福 | LED panel light convenient and rapid to install |
| CN112923273A (en) * | 2021-02-25 | 2021-06-08 | 浙江你我照明有限公司 | Lamp and tool for adjusting same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197437A (en) * | 1995-01-30 | 1996-08-06 | Akihiro Aoki | Bolt-nut fastening tool |
| US20090107301A1 (en) * | 2007-10-24 | 2009-04-30 | Lambert J Ewing | Wrench with slim profile |
| DE102011052572A1 (en) * | 2011-08-11 | 2013-02-14 | Jun Fan Chen | Wrench has central portion with portions formed of different heights, and transmission element provided between operating element and rotary main portion |
| CN203221440U (en) * | 2013-05-09 | 2013-10-02 | 马东辉 | All-round wrench |
| US20150258668A1 (en) * | 2014-03-13 | 2015-09-17 | Chappel W. Crawford | Wrench Extension Device |
| CN105415258A (en) * | 2016-01-06 | 2016-03-23 | 内蒙古长明机械股份有限公司 | Chain driven wrench |
| CN105690305A (en) * | 2014-11-28 | 2016-06-22 | 王光辉 | Spanner with chain |
| CN207746962U (en) * | 2017-11-28 | 2018-08-21 | 国家电网公司 | A kind of chain drive spanner |
-
2017
- 2017-11-28 CN CN201711212060.XA patent/CN107717808A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197437A (en) * | 1995-01-30 | 1996-08-06 | Akihiro Aoki | Bolt-nut fastening tool |
| US20090107301A1 (en) * | 2007-10-24 | 2009-04-30 | Lambert J Ewing | Wrench with slim profile |
| DE102011052572A1 (en) * | 2011-08-11 | 2013-02-14 | Jun Fan Chen | Wrench has central portion with portions formed of different heights, and transmission element provided between operating element and rotary main portion |
| CN203221440U (en) * | 2013-05-09 | 2013-10-02 | 马东辉 | All-round wrench |
| US20150258668A1 (en) * | 2014-03-13 | 2015-09-17 | Chappel W. Crawford | Wrench Extension Device |
| CN105690305A (en) * | 2014-11-28 | 2016-06-22 | 王光辉 | Spanner with chain |
| CN105415258A (en) * | 2016-01-06 | 2016-03-23 | 内蒙古长明机械股份有限公司 | Chain driven wrench |
| CN207746962U (en) * | 2017-11-28 | 2018-08-21 | 国家电网公司 | A kind of chain drive spanner |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555827A (en) * | 2018-03-09 | 2018-09-21 | 中广核核电运营有限公司 | Exciter rotor synchronizes attaching/detaching apparatus and exciter rotor synchronizes assembly and disassembly methods |
| CN108555827B (en) * | 2018-03-09 | 2019-10-29 | 中广核核电运营有限公司 | The synchronous attaching/detaching apparatus of exciter rotor and the synchronous assembly and disassembly methods of exciter rotor |
| CN108581904A (en) * | 2018-05-28 | 2018-09-28 | 国家电网公司 | Restricted clearance is driven socket wrench |
| CN110744482A (en) * | 2019-11-18 | 2020-02-04 | 山西省工业设备安装集团有限公司 | Narrow space bolt fastening device |
| CN111590520A (en) * | 2020-05-25 | 2020-08-28 | 贵州电网有限责任公司 | Chain plate hammer |
| CN111590522A (en) * | 2020-05-25 | 2020-08-28 | 贵州电网有限责任公司 | Double-end chain plate |
| CN112664875A (en) * | 2020-12-29 | 2021-04-16 | 曹隆福 | LED panel light convenient and rapid to install |
| CN112923273A (en) * | 2021-02-25 | 2021-06-08 | 浙江你我照明有限公司 | Lamp and tool for adjusting same |
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