CN201338254Y - Motorship-used connecting rod big-end top brass dismantling device - Google Patents
Motorship-used connecting rod big-end top brass dismantling device Download PDFInfo
- Publication number
- CN201338254Y CN201338254Y CNU2008202046461U CN200820204646U CN201338254Y CN 201338254 Y CN201338254 Y CN 201338254Y CN U2008202046461 U CNU2008202046461 U CN U2008202046461U CN 200820204646 U CN200820204646 U CN 200820204646U CN 201338254 Y CN201338254 Y CN 201338254Y
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- handed screw
- connecting rod
- handed
- nut
- pair
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Abstract
The utility model provides a motorship-used connecting rod big-end top brass dismantling device, comprising an upper bracket, a left-handed screw, a reversing threaded sleeve, a right-handed screw and a lower bracket, wherein the periphery of the reversing threaded sleeve is provided with handle holes, and the handle hole is internally provided with a handle capable of driving the reversing threaded sleeve to rotate; the upper bracket is arranged on a balance block and the lower part thereof is hinged with the left-handed screw; the reversing threaded sleeve is arranged between the left-handed screw and the right-handed screw, and the two ends thereof are respectively in threaded connection with the left-handed screw and the right-handed screw; the right-handed screw is hinged with the lower bracket; and the lower bracket is arranged on the upper cover of a connecting rod bearing. The utility model has simple structure, is safe and reliable to use, has no special requirement for the worksite, can easily dismantle the connecting rod big-end top brass without dismantling the cylinder head and lifting the piston connecting rod assembly, is simple to operate, and can not damage the crankshaft during the dismantling.
Description
Technical field
The utility model relates to a kind of dismantling device, particularly a kind of diesel engine marine type connecting rod tip on watt dismantling device.
Background technology
Diesel engine marine type connecting rod tip is a kind of more special structure, its weight is very big, therefore the dismounting comparatively difficulty of getting up, in the prior art, when connecting rod tip on watt is carried out dismounting, generally be to remove cylinder head earlier, adopt hydraulic pressure or mechanical hoisting method dismounting connecting rod tip on watt again, still, there is following defective in this assembly and disassembly methods: (1) security is relatively poor, security incident very easily takes place in disassembly process, with the safe and reliable management of diesel engine require inconsistent; (2) complex operation must be removed cylinder head earlier, because the annex on the cylinder head is more, so dismantle cumbersome; (3) to the requirement height of work-yard, the work-yard must have sufficient lifting space; (4) use existing assembly and disassembly methods easily bent axle to be caused damage, for example garland bearing shell, the crank-pin etc. of wounding.
The utility model content
The purpose of this utility model provides a kind of simple in structure, high safety, is convenient to operate and strengthen diesel engine marine type connecting rod tip on watt dismantling device of bent axle protection, do not have specific (special) requirements to implementing the place when it uses, so dismounting is very convenient.
The technical solution of the utility model realizes by following technical measures: a kind of diesel engine marine type connecting rod tip on watt dismantling device, it is characterized in that it comprises the upper bracket of installing successively from top to bottom, left-handed screw, the double rotational directions swivel nut, right handed screw and lower carriage, described double rotational directions swivel nut circumferentially has handle hole, installation can drive the handle of described double rotational directions swivel nut rotation in the described handle hole, described upper bracket is installed on the balance weight, its underpart and left-handed screw are hinged, described double rotational directions swivel nut is between described left-handed screw and right handed screw, its two ends are threaded with described left-handed screw and right handed screw respectively, described right handed screw and described lower carriage are hinged, and described lower carriage is installed on the connecting-rod bearing and covers.
Of the present utility model simple in structure, safe and reliable; Can easily dismounting connecting rod tip on watt under the situation of not removing cylinder head and lifting Piston and rod assembly, simple to operation, and when dismounting, can not cause damage to bent axle; Because the utility model does not have specific (special) requirements to the work-yard in use, so the scope of application is wider.
The utility model in use, earlier lower cover is removed from connecting rod tip, crank-pin is gone to lower dead point position, use two cover the utility model simultaneously, be installed in the both sides of connecting rod tip respectively, wherein, upper bracket is installed on the crankshaft counter balance, lower carriage is installed on the connecting-rod bearing and covers, and forces in handle again, drives the rotation of double rotational directions swivel nut, and then drive left-handed screw and right handed screw middle part screw-in in the double rotational directions swivel nut, two cover the utility model realize promoting synchronously connecting-rod bearing loam cake, treat to take out connecting rod on watt after connecting rod bearing shell and crank-pin are separated to certain altitude, and just can carry out opening and inspecting and changing of connecting rod on watt this moment; Finish open and inspect and change after, more oppositely to the handle application of force, revolve screw rod about making and screw out to double rotational directions swivel nut two ends, realize reducing synchronously connecting-rod bearing loam cake, finish the installation of connecting rod tip on watt.
Described double rotational directions swivel nut is made up of right-handed nut, joint sleeve and left-handed nut, described right-handed nut is welded in the tube wall of described joint sleeve upper end, described left-handed nut is welded in the tube wall of described joint sleeve lower end, described right-handed nut and described left-handed screw are threaded, and described left-handed nut and described right handed screw are threaded.
In the utility model the double rotational directions swivel nut by left and right sides spin nut with about revolve screw rod and be connected, when forcing in handle of the present utility model, drive the rotation of double rotational directions swivel nut, left and right sides nut by the double rotational directions swivel nut with about revolve screw rod and match, screw rod middle part in the double rotational directions swivel nut in the left and right sides screws in, thereby realizes that the utility model promotes the purpose of connecting-rod bearing loam cake.
Described upper bracket is made up of a pair of connecting plate of vertical setting and a connecting axle of horizontally set, described a pair of connecting plate is installed on the balance weight by bolting, described connecting axle two ends link to each other with described a pair of connecting plate respectively, and described left-handed screw is hinged on the middle part of described connecting axle; Described lower carriage also is made up of a pair of connecting plate of vertical setting and a connecting axle of horizontally set, described a pair of connecting plate is installed on the connecting-rod bearing by bolting and covers, described connecting axle two ends link to each other with described a pair of connecting plate respectively, and described right handed screw is hinged on the middle part of described connecting axle.
Upper bracket of the present utility model is installed on the crankshaft counter balance by the bolt that is fixed on the connecting plate, simultaneously, lower carriage also is installed on the connecting-rod bearing and covers by being fixed on bolt on the connecting plate, makes the utility model be fixedly mounted on the connecting rod tip, is convenient to the application of force.
The connecting axle two ends of described upper bracket are welded on a pair of connecting plate of upper bracket, and the connecting axle two ends of described lower carriage are welded on a pair of connecting plate of lower carriage.
Compared with prior art, the utility model has the advantages that:
(1) of the present utility model simple in structure, safe and reliable;
(2) simple to operation, compared with prior art, save the operating procedure of removing cylinder head and lifting Piston and rod assembly;
(3) the utility model can not cause damage to bent axle when dismounting, has avoided the phenomenon of bearing shell garland, the crank-pin of wounding to take place;
(4) work-yard there is not specific (special) requirements, practical, can extensively promote suitable.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is that the utility model is installed in the structural representation on the connecting rod tip;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation after the utility model promotes connecting-rod bearing loam cake;
Fig. 4 is a front elevational schematic of the present utility model;
Fig. 5 is a schematic side view of the present utility model;
Fig. 6 is the structure cross-sectional schematic of double rotational directions swivel nut in the utility model.
The specific embodiment
A kind of diesel engine marine type connecting rod tip on watt dismantling device shown in Fig. 1～6, it comprises the upper bracket of installing successively 1 from top to bottom, left-handed screw 2, double rotational directions swivel nut 3, right handed screw 5 and lower carriage 6, double rotational directions swivel nut 3 circumferentially has handle hole 10, installation can drive the handle 4 of double rotational directions swivel nut 3 rotations in the handle hole 10, double rotational directions swivel nut 3 is between left-handed screw 2 and right handed screw 5, double rotational directions swivel nut 3 is by right-handed nut 31, joint sleeve 32 and left-handed nut 33 are formed, right-handed nut 31 is welded in the tube wall of joint sleeve 32 upper ends, left-handed nut 33 is welded in the tube wall of joint sleeve 32 lower ends, right-handed nut 31 and left-handed screw 2 are threaded, and left-handed nut 33 and right handed screw 5 are threaded.
Connecting plate 11,12 is fixedly mounted on the crankshaft counter balance 7 by bolt 11a, 12a, makes upper bracket 1 be installed on the crankshaft counter balance 7; Connecting plate 61,62 is installed on the connecting-rod bearing loam cake 8 by bolting, makes lower carriage 6 be installed on the connecting-rod bearing loam cake 8.
Operation principle of the present utility model is: by lifting marine type connecting rod, when crank-pin 9 goes to lower dead point position, removed lower cover connecting rod and last watt still be positioned on the crank-pin 9, the utility model is sling Piston and rod assembly (having removed lower cover), because this moment crank-pin 9 be positioned at the dead-centre position, so Piston and rod assembly has one section climb, treat that Piston and rod assembly rises to certain distance after, crank-pin 9 and the last watt-minute that is contained in the connecting rod loam cake are from, desirable lower link on watt at this moment.
Use of the present utility model is: earlier lower cover is removed from connecting rod tip, crank-pin 9 is gone to lower dead point position, the utility model is installed in both sides in connecting rod tip, soon the utility model is installed in respectively on the crankshaft counter balance and the connecting-rod bearing and covers, rotate the double rotational directions swivel nut by handle, the double rotational directions swivel nut with about revolve screw rod and match, driving left-handed screw and right handed screw middle part in the double rotational directions swivel nut screws in, realize promoting synchronously connecting-rod bearing loam cake, treat that connecting rod bearing shell and crank-pin 9 are separated to and take out connecting rod on watt (watt just can make a watt disengaging) behind the certain altitude as long as use waddy to beat gently, that just can carry out connecting rod on watt this moment opens and inspect or changes connecting rod on watt, finish open and inspect and change after, again oppositely to the handle application of force, double rotational directions swivel nut backward rotation, revolve screw rod about making and screw out, reduce connecting-rod bearing loam cake, finish the installation of connecting rod tip on watt to double rotational directions swivel nut two ends.
The utility model is in carrying out disassembly process, and cylinder head remains former installment state.
Claims (4)
1. diesel engine marine type connecting rod tip on watt dismantling device, it is characterized in that: it comprises the upper bracket of installing successively from top to bottom, left-handed screw, the double rotational directions swivel nut, right handed screw and lower carriage, described double rotational directions swivel nut circumferentially has handle hole, installation can drive the handle of described double rotational directions swivel nut rotation in the described handle hole, described upper bracket is installed on the balance weight, its underpart and left-handed screw are hinged, described double rotational directions swivel nut is between described left-handed screw and right handed screw, its two ends are threaded with described left-handed screw and right handed screw respectively, described right handed screw and described lower carriage are hinged, and described lower carriage is installed on the connecting-rod bearing and covers.
2. a kind of diesel engine marine type connecting rod tip on watt dismantling device according to claim 1, it is characterized in that: described double rotational directions swivel nut is made up of right-handed nut, joint sleeve and left-handed nut, described right-handed nut is welded in the tube wall of described joint sleeve upper end, described left-handed nut is welded in the tube wall of described joint sleeve lower end, described right-handed nut and described left-handed screw are threaded, and described left-handed nut and described right handed screw are threaded.
3. a kind of diesel engine marine type connecting rod tip on watt dismantling device according to claim 1, it is characterized in that: described upper bracket is made up of a pair of connecting plate of vertical setting and a connecting axle of horizontally set, described a pair of connecting plate is installed on the balance weight by bolting, described connecting axle two ends link to each other with described a pair of connecting plate respectively, and described left-handed screw is hinged on the middle part of described connecting axle; Described lower carriage also is made up of a pair of connecting plate of vertical setting and a connecting axle of horizontally set, described a pair of connecting plate is installed on the connecting-rod bearing by bolting and covers, described connecting axle two ends link to each other with described a pair of connecting plate respectively, and described right handed screw is hinged on the middle part of described connecting axle.
4. a kind of diesel engine marine type connecting rod tip on watt dismantling device according to claim 3, it is characterized in that: the connecting axle two ends of described upper bracket are welded on a pair of connecting plate of upper bracket, and the connecting axle two ends of described lower carriage are welded on a pair of connecting plate of lower carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202046461U CN201338254Y (en) | 2008-12-04 | 2008-12-04 | Motorship-used connecting rod big-end top brass dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202046461U CN201338254Y (en) | 2008-12-04 | 2008-12-04 | Motorship-used connecting rod big-end top brass dismantling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338254Y true CN201338254Y (en) | 2009-11-04 |
Family
ID=41233790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202046461U Expired - Fee Related CN201338254Y (en) | 2008-12-04 | 2008-12-04 | Motorship-used connecting rod big-end top brass dismantling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338254Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284925A (en) * | 2011-08-17 | 2011-12-21 | 广东核电合营有限公司 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
| CN103935878A (en) * | 2014-05-07 | 2014-07-23 | 国家电网公司 | Upper guide shoe mounting tool of vertical hydro generator |
| CN106695680A (en) * | 2016-12-30 | 2017-05-24 | 重庆维庆液压机械有限公司 | Hydraulic cylinder piston head dismounting device |
| CN106870636A (en) * | 2017-02-28 | 2017-06-20 | 中船第九设计研究院工程有限公司 | A kind of synchronous anti-rotation screw-button |
| CN107053085A (en) * | 2016-12-30 | 2017-08-18 | 重庆维庆液压机械有限公司 | The method for dismounting of hydraulic cylinder piston head |
| CN109048299A (en) * | 2018-10-31 | 2018-12-21 | 中船动力有限公司 | The connecting rod bearing shell mounting tool and method of marine diesel |
| CN110924667A (en) * | 2019-12-27 | 2020-03-27 | 申锡机械有限公司 | Wall-attached frame and guide rail climbing type working platform |
| CN111843891A (en) * | 2020-07-13 | 2020-10-30 | 中船动力研究院有限公司 | Fixing tool for connecting rod big end and fixing method applying same |
-
2008
- 2008-12-04 CN CNU2008202046461U patent/CN201338254Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284925A (en) * | 2011-08-17 | 2011-12-21 | 广东核电合营有限公司 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
| CN102284925B (en) * | 2011-08-17 | 2014-07-09 | 广东核电合营有限公司 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
| CN103935878A (en) * | 2014-05-07 | 2014-07-23 | 国家电网公司 | Upper guide shoe mounting tool of vertical hydro generator |
| CN106695680A (en) * | 2016-12-30 | 2017-05-24 | 重庆维庆液压机械有限公司 | Hydraulic cylinder piston head dismounting device |
| CN107053085A (en) * | 2016-12-30 | 2017-08-18 | 重庆维庆液压机械有限公司 | The method for dismounting of hydraulic cylinder piston head |
| CN106870636A (en) * | 2017-02-28 | 2017-06-20 | 中船第九设计研究院工程有限公司 | A kind of synchronous anti-rotation screw-button |
| CN109048299A (en) * | 2018-10-31 | 2018-12-21 | 中船动力有限公司 | The connecting rod bearing shell mounting tool and method of marine diesel |
| CN109048299B (en) * | 2018-10-31 | 2023-10-10 | 中船动力有限公司 | Connecting rod bearing bush mounting tool and method for marine diesel engine |
| CN110924667A (en) * | 2019-12-27 | 2020-03-27 | 申锡机械有限公司 | Wall-attached frame and guide rail climbing type working platform |
| CN111843891A (en) * | 2020-07-13 | 2020-10-30 | 中船动力研究院有限公司 | Fixing tool for connecting rod big end and fixing method applying same |
| CN111843891B (en) * | 2020-07-13 | 2022-02-18 | 中船动力研究院有限公司 | Fixing tool for connecting rod big end and fixing method applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |