CN105834983B - Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve - Google Patents

Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve Download PDF

Info

Publication number
CN105834983B
CN105834983B CN201610270250.6A CN201610270250A CN105834983B CN 105834983 B CN105834983 B CN 105834983B CN 201610270250 A CN201610270250 A CN 201610270250A CN 105834983 B CN105834983 B CN 105834983B
Authority
CN
China
Prior art keywords
bucket wheel
expansion coupling
sleeve
coupling sleeve
speed reducer
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
Application number
CN201610270250.6A
Other languages
Chinese (zh)
Other versions
CN105834983A (en
Inventor
窦胜
王科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MCC Baosteel Technology Services Co Ltd
Original Assignee
MCC Baosteel Technology Services Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MCC Baosteel Technology Services Co Ltd filed Critical MCC Baosteel Technology Services Co Ltd
Priority to CN201610270250.6A priority Critical patent/CN105834983B/en
Publication of CN105834983A publication Critical patent/CN105834983A/en
Application granted granted Critical
Publication of CN105834983B publication Critical patent/CN105834983B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • B25B23/0021Prolongations interposed between handle and tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention provides a kind of special dismantling device of bucket wheel reducer expansion coupling sleeve, including:Allen wrench, connecting tube, sleeve and electric wrench;The connecting tube underrun magnet adsorption has allen wrench, the connecting tube top surface to be connected by sleeve special bolt with the sleeve;The sleeve upper end is equipped with electric wrench.The present invention also provides bucket wheel reducer Replacement procedures, when removing speed reducer, first so that the allen wrench of above-mentioned special dismantling device is matched with the upper bolt of expansion coupling set, remove all bolts;Two hydraulic jacks are placed between speed reducer and bucket wheel again, utilize hydraulic jack pushing tow speed reducer so that the speed reducer is detached with the driven shaft of bucket wheel;When speed reducer is installed, expansion coupling sleeve is put into Hollow Transmission Shafts and it is made to be set on driven shaft;Above-mentioned special dismantling device locking expansion coupling is recycled to put on bolt.The present invention can save a large amount of human and material resources, and improve construction efficiency.

Description

Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve
Technical field
The present invention relates to repair bucket wheel reducers, more particularly to a kind of bucket wheel reducer Replacement procedure and bucket wheel reducer The special dismantling device of expansion coupling sleeve.
Background technology
Reclaimer is rotated by bucket wheel and carries out feeding, and the type of drive of bucket wheel is divided into two kinds, and one is driven by motor Dynamic, another kind is driven by oil motor.When it is driving device that bucket wheel, which is motor drive speed reducer rotation, speed reducer is most Rear stage driving cog is equipped with Hollow Transmission Shafts, runs through inside Hollow Transmission Shafts, driven shaft one end of Hollow Transmission Shafts and bucket wheel Coupled by expansion coupling sleeve, the driven shaft other end of bucket wheel connects bucket wheel.When replacing bucket wheel reducer by expansion coupling Set is first removed, but expansion coupling sleeve has a certain distance, general power tool that can not use apart from speed reducer end cap, have to be same Shi Genghuan bucket wheels and driving device expend a large amount of human and material resources.
Invention content
In view of the foregoing deficiencies of prior art, of the invention first to be designed to provide a kind of bucket wheel reducer swollen The special dismantling device of tight coupling sleeve, for solving the above-mentioned technical problems in the prior art in the prior art.
Second object of the present invention is to provide a kind of bucket wheel reducer Replacement procedure.
To realize that above-mentioned first purpose, the present invention provide the following technical solutions:
A kind of special dismantling device of bucket wheel reducer expansion coupling sleeve, includes at least:Allen wrench, connecting tube, sleeve, And electric wrench;The connecting tube underrun magnet adsorption has an allen wrench, and the allen wrench is described in rod-shaped Connecting tube top surface is connected with the sleeve by sleeve special bolt;The sleeve upper end is equipped with electric wrench.
Preferably, the sleeve special bolt is welded with the connecting tube top surface.
Preferably, the magnetic blow out centre offers blind hole, the allen wrench upper end be located in the blind hole and with institute State magnet adsorption connection.
Preferably, radial through-hole is offered in the middle part of the sleeve, and steel pipe is inserted in the radial through-hole.
Preferably, the thickness of steel pipe is not less than 10mm.
Preferably, described sleeve pipe overall diameter is identical as the driven shaft diameter of bucket wheel.
As described above, the special dismantling device of bucket wheel reducer expansion coupling sleeve of the present invention, has the advantages that:
The special dismantling device reasonable design of this bucket wheel reducer expansion coupling sleeve, it is simple in structure;Replacing bucket wheel reducer When, as long as so that the allen wrench and expansion coupling cover a upper bolt and match, and start the electric wrench, dismounting The bolt is realized and removes expansion coupling sleeve, avoids while replacing bucket wheel and speed reducer;It can be seen that it is conveniently operated, save simultaneously A large amount of human and material resources, and construction efficiency is high.
To realize that above-mentioned second purpose, the present invention provide the following technical solutions:
A kind of bucket wheel reducer Replacement procedure, including expansion coupling sleeve and installation expansion coupling sleeve are removed, remove speed reducer Include the following steps:
1) prepare the above-mentioned special dismantling device of bucket wheel reducer expansion coupling sleeve;
2) so that the allen wrench of the special dismantling device of bucket wheel reducer expansion coupling sleeve covers upper one with expansion coupling Bolt matches, and starts the electric wrench, removes the bolt;
3) after the upper all bolts of expansion coupling set to be removed, two hydraulic jacks are placed between speed reducer and bucket wheel Top, two hydraulic jacks are arranged symmetrically in the driven shaft both sides of bucket wheel, driven shaft one end of the bucket wheel and speed reducer It is connected, the other end is connected with bucket wheel;Start two hydraulic jacks simultaneously, the lifting pin of the hydraulic jack is to institute It states speed reducer and applies a thrust, until the speed reducer is detached with the driven shaft of bucket wheel, close two hydraulic jacks, it is complete At the dismounting deceleration machine operation;
Installation speed reducer includes the following steps:
1) driven shaft one end of the bucket wheel is connected with the speed reducer first;
2) expansion coupling sleeve is put into the Hollow Transmission Shafts of the speed reducer again, and makes the expansion coupling sleeve coaxial It is set on the driven shaft of the bucket wheel;
3) bolt is placed in the expansion coupling sleeve upper bolt hole, and utilizes above-mentioned bucket wheel reducer expansion coupling sleeve Special dismantling device locking expansion coupling puts on all bolts, waits for expansion coupling sleeve fastening in place, the Hollow Transmission Shafts and institute The driven shaft for stating bucket wheel links together, that is, completes installation deceleration machine operation.
Preferably, the hydraulic jack is erected at by installation on the bucket wheel.
As described above, the bucket wheel reducer Replacement procedure of the present invention, has the advantages that:
This bucket wheel reducer Replacement procedure is simple in replacement bucket wheel reducer technics comparing, is removing and installing speed reducer mistake Cheng Zhong can be removed and be installed expansion coupling sleeve using the special dismantling device of bucket wheel reducer expansion coupling sleeve, avoid tearing open Except bucket wheel, and bucket wheel and speed reducer are replaced simultaneously, to save a large amount of human and material resources, and construction efficiency is high.
Description of the drawings
Fig. 1 is shown as the special dismantling device schematic diagram of bucket wheel reducer expansion coupling sleeve of the present invention.
The special dismantling device of bucket wheel reducer expansion coupling sleeve that Fig. 2 is shown as the present invention is torn open when not installing electric wrench Except bolt sectional view on expansion coupling sleeve.
Component label instructions
1 allen wrench
2 connecting tubes
3 sleeves
4 electric wrenches
5 magnet
6 sleeve special bolts
7 steel pipes
10 bucket wheels
20 driven shafts
30 Hollow Transmission Shafts
40 expansion coupling sleeves
50 speed reducers
60 special dismantling devices
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification to be taken off The content shown is not limited to the enforceable qualifications of the present invention so that those skilled in the art understands and reads, therefore Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention Under the effect of can be generated and the purpose that can reach, the model that can cover in disclosed technology contents should all be still fallen In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence It changes under technology contents, when being also considered as the enforceable scope of the present invention.
With reference to figure 2, the driving device of bucket wheel 10 is speed reducer 50.The afterbody driving cog of speed reducer 50 is equipped with hollow Transmission shaft 30,30 inside of Hollow Transmission Shafts is through the driven shaft 20 for having bucket wheel 10,20 outer wall of driven shaft and the hollow biography of bucket wheel 10 30 inner wall gap of moving axis is smaller, and the gap is long;20 one end of driven shaft of Hollow Transmission Shafts 30 and bucket wheel 10 passes through swollen Tight coupling sleeve 40 couples, and 20 other end of driven shaft of bucket wheel 10 connects bucket wheel 10;Speed reducer 50 rotates, and Hollow Transmission Shafts 30 can band The driven shaft 20 of dynamic bucket wheel 10 rotates, while the rotation of driven shaft 20 drives bucket wheel 10 to rotate.
As shown in Figure 1, the present invention provides a kind of special dismantling device of bucket wheel reducer expansion coupling sleeve, include at least:It is interior Die nut 1, connecting tube 2, sleeve 3 and electric wrench 4;2 underrun magnet 5 of the connecting tube is adsorbed with interior hexagonal and pulls Hand 1, the allen wrench 1 are in rod-shaped, and 2 top surface of the connecting tube is connected with the sleeve 3 by sleeve special bolt 6;It is excellent Selection of land, the sleeve special bolt 6 are welded with 2 top surface of the connecting tube;3 upper end of the sleeve is equipped with electric wrench 4.It is preferred that Ground, described sleeve pipe overall diameter are identical as 20 diameter of driven shaft of bucket wheel 10.
The allen wrench 1 bolt and Hollow Transmission Shafts on more than expansion coupling sleeve 40 to the electric wrench 4 30 10 end distance of separate bucket wheel.
The magnet 5 can directly adsorb in 2 bottom surface of the connecting tube, can also be embedded in the connecting tube 2.Work as institute When stating magnet 5 and being embedded in the connecting tube 2,5 lower surface of the magnet is dashed forward in 2 bottom surface of the connecting tube.
It is further improved as the present invention, with reference to figure 1, blind hole, the allen wrench is offered at 5 center of the magnet 1 upper end, which is located in the blind hole and is adsorbed with the magnet 5, to be connected.Preferably, the blind hole is polygonal blind hole.
It is further improved as the present invention, 3 middle part of the sleeve offers radial through-hole, and is inserted in the radial through-hole Steel pipe 7.Preferably, 7 wall thickness of the steel pipe is not less than 10mm.The allen wrench 1 is more than swelling to through-hole distance and joins The 10 end distance of separate bucket wheel of bolt and Hollow Transmission Shafts 30, is shown in Fig. 1 on knot set 40.
The special dismantling device reasonable design of this bucket wheel reducer expansion coupling sleeve, it is simple in structure;Slow down replacing bucket wheel 10 When machine 50, as long as so that the allen wrench 1 is matched with the bolt on expansion coupling sleeve 40, and start described electronic pull Hand 4 removes the bolt, realizes and removes expansion coupling sleeve 40, avoids while replacing bucket wheel 10 and speed reducer 50;It can be seen that it is convenient Operation, while a large amount of human and material resources are saved, and construction efficiency is high.In addition, when the electric wrench 4 breaks down, or because of it When its reason does not have to the electric wrench 4, it can be inserted into the steel pipe 7 in the radial through-hole, 7 both ends of the steel pipe are equal at this time It dashes forward in the radial through-hole, two hands hold 7 both ends of the steel pipe respectively, and bolt can be also removed by pulling the steel pipe 7.
The present invention also provides a kind of bucket wheel reducer Replacement procedures, including remove expansion coupling sleeve 40 and installation expansion coupling Set 40 is removed speed reducer 50 and is included the following steps with reference to figure 1 and Fig. 2:
1) prepare the special dismantling device of above-mentioned bucket wheel reducer expansion coupling sleeve 60;
2) so that the allen wrench 1 of the special dismantling device of bucket wheel reducer expansion coupling sleeve 60 on expansion coupling sleeve 40 A bolt match, and start the electric wrench 4, remove the bolt;
3) after all bolts on expansion coupling sleeve 40 to be removed, two hydraulic pressure are placed between speed reducer 50 and bucket wheel 10 Jack;Specifically, the hydraulic jack is located on the bucket wheel 10, and the lifting pin of the hydraulic jack subtracts described in Fast machine 50.Two hydraulic jacks are arranged symmetrically in 20 both sides of driven shaft of bucket wheel 10, the driven shaft 20 of the bucket wheel 10 One end is connected with speed reducer 50, and the other end is connected with bucket wheel 10;Start two hydraulic jacks, the hydraulic pressure thousand simultaneously The lifting pin on jin top applies a thrust to the speed reducer 50, until the speed reducer 50 is detached with the driven shaft 20 of bucket wheel 10, Two hydraulic jacks are closed, complete to remove 50 operation of speed reducer;
With reference to figure 1 and Fig. 2, installation speed reducer 50 includes the following steps:
1) 20 one end of driven shaft of the bucket wheel 10 is connected first with the speed reducer 50, and wipes the bucket wheel 10 Driven shaft 20, it is ensured that there is no any greasy dirt and dust on the driven shaft 20 of the bucket wheel 10;
2) expansion coupling sleeve 40 is put into the Hollow Transmission Shafts 30 of the speed reducer 50 again, and makes the expansion coupling Set 40 is coaxially set on the driven shaft 20 of the bucket wheel 10;I.e. the expansion coupling sleeve 40 cannot have the offset of any angle, Otherwise it will appear casey;
3) bolt is placed in 40 upper bolt hole of the expansion coupling sleeve, and utilizes above-mentioned bucket wheel reducer expansion coupling It covers special dismantling device 60 and locks all bolts on expansion coupling sleeve 40, wait for the fastening of expansion coupling sleeve 40 in place, the hollow biography Moving axis 30 and the driven shaft 20 of the bucket wheel 10 link together, that is, complete installation 50 operation of speed reducer.
This bucket wheel reducer Replacement procedure is simple in replacement bucket wheel 10 speed reducer, 50 technics comparings, slows down removing and installing During machine 50, expansion coupling sleeve can be removed and be installed using the special dismantling device of bucket wheel reducer expansion coupling sleeve 60 40, it avoids removing bucket wheel 10, and replace bucket wheel 10 and speed reducer 50 simultaneously;Meanwhile the activity duration foreshortens to from original 16h 10h is reduced to 4 operating personnels from original 8 operating personnels;As it can be seen that a large amount of human and material resources are saved, and construction efficiency is high.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should by the present invention claim be covered.

Claims (5)

1. a kind of special dismantling device of bucket wheel reducer expansion coupling sleeve, which is characterized in that include at least:Allen wrench(1)、 Connecting tube(2), sleeve(3)And electric wrench(4);The connecting tube(2)Underrun magnet(5)It is adsorbed with allen wrench (1), the allen wrench(1)In rod-shaped, the connecting tube(2)Top surface and the sleeve(3)Pass through sleeve special bolt(6) It is connected;The sleeve(3)Upper end is equipped with electric wrench(4);The allen wrench(1)To the electric wrench(4)Distance More than expansion coupling sleeve(40)Upper bolt and Hollow Transmission Shafts(30)Separate bucket wheel(10)Hold distance;The magnet(5)Center Offer blind hole, the allen wrench(1)Upper end be located in the blind hole and with the magnet(5)Absorption connection;It is described blind Hole is polygonal blind hole;The sleeve special bolt(6)With the connecting tube(2)It welds top surface;The sleeve(3)Middle part opens up There is radial through-hole, and steel pipe is inserted in the radial through-hole(7).
2. the special dismantling device of bucket wheel reducer expansion coupling sleeve according to claim 1, it is characterised in that:The steel pipe (7)Wall thickness is not less than 10mm.
3. the special dismantling device of bucket wheel reducer expansion coupling sleeve according to claim 1, it is characterised in that:The sleeve (3)Overall diameter and bucket wheel(10)Driven shaft(20)Diameter is identical.
4. a kind of bucket wheel reducer Replacement procedure, including remove expansion coupling sleeve(40)With installation expansion coupling sleeve(40), special Sign is, removes speed reducer(50)Include the following steps:
Prepare the special dismantling device of claims 1 to 3 any one of them bucket wheel reducer expansion coupling sleeve(60);
Make the special dismantling device of bucket wheel reducer expansion coupling sleeve(60)Allen wrench(1)With expansion coupling sleeve(40)On A bolt match, and start the electric wrench(4), remove the bolt;
Expansion coupling sleeve to be removed(40)On all bolts after, in speed reducer(50)With bucket wheel(10)Between place two hydraulic pressure Jack, two hydraulic jacks are arranged symmetrically in bucket wheel(10)Driven shaft(20)Both sides, the bucket wheel(10)From Moving axis(20)One end and speed reducer(50)It is connected, the other end and bucket wheel(10)It is connected;Start two hydraulic jacks simultaneously Top, the lifting pin of the hydraulic jack is to the speed reducer(50)Apply a thrust, until the speed reducer(50)With bucket wheel (10)Driven shaft(20)Two hydraulic jacks are closed in separation, complete to remove the speed reducer(50)Operation;
Speed reducer is installed(50)Include the following steps:
First by the bucket wheel(10)Driven shaft(20)One end and the speed reducer(50)It is connected;
Again by expansion coupling sleeve(40)It is put into the speed reducer(50)Hollow Transmission Shafts(30)In, and make the expansion coupling Set(40)Coaxially it is set in the bucket wheel(10)Driven shaft(20)On;
Bolt is placed on the expansion coupling sleeve(40)In upper bolt hole, and utilize 3 any one of them bucket of claims 1 to 3 Take turns the special dismantling device of speed reducer expansion coupling sleeve(60)Lock expansion coupling sleeve(40)Upper all bolts, wait for expansion coupling sleeve (40)It fastens in place, the Hollow Transmission Shafts(30)With the bucket wheel(10)Driven shaft(20)It links together, that is, completes peace Fill speed reducer(50)Operation.
5. bucket wheel reducer Replacement procedure according to claim 4, it is characterised in that:The hydraulic jack passes through installation It is erected at the bucket wheel(10)On.
CN201610270250.6A 2016-04-27 2016-04-27 Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve Active CN105834983B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610270250.6A CN105834983B (en) 2016-04-27 2016-04-27 Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610270250.6A CN105834983B (en) 2016-04-27 2016-04-27 Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve

Publications (2)

Publication Number Publication Date
CN105834983A CN105834983A (en) 2016-08-10
CN105834983B true CN105834983B (en) 2018-09-25

Family

ID=56589360

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610270250.6A Active CN105834983B (en) 2016-04-27 2016-04-27 Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve

Country Status (1)

Country Link
CN (1) CN105834983B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111196253A (en) * 2020-02-28 2020-05-26 神华天津煤炭码头有限责任公司 Maintenance method of mechanical walking device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203141376U (en) * 2013-01-30 2013-08-21 嵊州市博爱机械设计工作室 Detachable chuck wrench
CN204135987U (en) * 2014-08-26 2015-02-04 上海宝冶集团有限公司 Single roller of sintering machine breaks reductor ringfeder attaching/detaching apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507837A (en) * 1983-07-11 1985-04-02 Dana Corporation Extractor tool
CN201940933U (en) * 2011-01-05 2011-08-24 山东金晶科技股份有限公司 Tool special for detaching expansion sleeve of trimmed roller way
CN202607559U (en) * 2012-06-21 2012-12-19 孟乐乐 Electric type screw dismounting machine
CN204748472U (en) * 2015-06-02 2015-11-11 河南省华锐矿机设备有限公司 Fluid coupling ware dismounting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203141376U (en) * 2013-01-30 2013-08-21 嵊州市博爱机械设计工作室 Detachable chuck wrench
CN204135987U (en) * 2014-08-26 2015-02-04 上海宝冶集团有限公司 Single roller of sintering machine breaks reductor ringfeder attaching/detaching apparatus

Also Published As

Publication number Publication date
CN105834983A (en) 2016-08-10

Similar Documents

Publication Publication Date Title
CN201872114U (en) Power assisted wrench
CN105834983B (en) Bucket wheel reducer Replacement procedure and its special dismantling device of expansion coupling sleeve
CN201086264Y (en) Socket wrench
CN202241053U (en) Tool for unscrewing/screwing bolt
CN202656103U (en) Five-axis nut installation device
CN102358182B (en) Emergency steering pump drive device and hoister applied by same
CN203526932U (en) Large-diameter nut tightening device
CN206426020U (en) Hand turning device
CN205968779U (en) Spanner turns to device
CN207289982U (en) A kind of case of transmission assembly tool special for dismounting
CN202517443U (en) Dark corner sleeve detacher
CN207195491U (en) A kind of clutch dedicated separation bearing of the convenient dismounting of return spring
CN102476272A (en) Combined type high-efficient bolt unscrewing device
CN102437532A (en) Electrified fastening stick for middle-phase insulator screw cap
CN204592239U (en) A kind of driving shaft
CN204689496U (en) A kind of rope press device
CN203804914U (en) Half shaft dismounting tool
CN207606477U (en) A kind of double dynamical cylinder disassembling machine
CN206901601U (en) A kind of cart driving mechanism
CN201505878U (en) Labor saving wrench
CN218670272U (en) Driving gear coupling
CN216332490U (en) Universal frame mechanism of electric tricycle
CN201866114U (en) Involute internal spline coupling flange based on gear shaft
CN219747788U (en) A go up and break out device for bolt and nut
CN203020507U (en) Soft shaft transmission system for motorcycle

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant