CN201046528Y - Fixing apparatus for erection of marine slow-run diesel engine piston assembly - Google Patents
Fixing apparatus for erection of marine slow-run diesel engine piston assembly Download PDFInfo
- Publication number
- CN201046528Y CN201046528Y CNU2007200691382U CN200720069138U CN201046528Y CN 201046528 Y CN201046528 Y CN 201046528Y CN U2007200691382 U CNU2007200691382 U CN U2007200691382U CN 200720069138 U CN200720069138 U CN 200720069138U CN 201046528 Y CN201046528 Y CN 201046528Y
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- piston rod
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- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a fixing device for the piston assembly installation of the marine low-speed diesel engine, comprising a positioning plate, wherein, two supporting bolts are penetrated through the second screw hole and the third screw hole on the positioning plate and then are fixed in the preinstalled screw holes on the bottom of a cylinder body; an adjusting bolt is penetrated through the first screw hole on the positioning plated and then is fixed in the positioning screw hole on the piston rod; an adjusting nut is arranged on the external threads of the adjusting bolt between the positioning plate and the screw cap of the adjusting bolt. The utility model solves the problem that the installation and adjustment is inconvenient because the distance between the piston rod and the lower plane of the cylinder body is fixed in the prior fixing device of the piston assembly. The utility model has the advantages of simple installation, convenient operation, and good controllability in application.
Description
Technical field
The utility model relates to assembly tool, particularly a kind of fixture that is used for marine diesel piston assembly installation.
Background technology
The installation of piston assembly is marine low speed diesel engine important step in the process of making is installed.As shown in Figure 1, piston assembly (comprising piston head 1 and piston rod 4) in hanging in cylinder block 3 after, utilize the screw on cylinder block 3 lower planes and the piston rod, use setting tool 6 to fix piston assembly.After cylinder block and frame 8 are closed up, connect piston rod and crosshead 7, again the piston assembly setting tool is removed.But piston rod is indefinite apart from cylinder body lower plane distance, needs to adjust so that crosshead can be connected smoothly with piston rod.Therefore, need to adopt special instrument to assist assembling.
Piston assembly setting tool of the prior art as shown in Figure 2, conventional instrument adopts the mode of double-side fastening, by one first bolt a4 stationary positioned plate 63 and piston rod 4, another second bolt a2 is fixed in the positioning screw hole of cylinder block 3 lower surfaces, simultaneously, using two tightening position screw a1 to pass location-plate 63 is supported on cylinder block 3 lower surfaces.After this instrument installed, piston rod one end when connecting crosshead pin and piston rod, can only be finished assembly work to the fixed distance of cylinder body lower plane by the distance of dish dynamic crankshaft adjustment crosshead pin and piston rod.On the other hand, the newly-designed assembly tool of new architecture has limited descending distance in the piston assembly hoisting process, make piston rod apart from the distance of cylinder body lower plane less than empirical value, cause the supreme stop of connecting rod cross cephalic disc, piston rod also fails to contact with crosshead pin.If use former piston assembly setting tool, then the distance of piston rod apart from the cylinder body lower plane fixed, adjust extremely inconvenient.
In sum, the problem of setting tool existence of the prior art is as follows:
1. the existing fixed instrument can only be fixed in piston rod 4 lower end of cylinder block 3, can not do corresponding mobile as required, can only move the assembling of finishing the crosshead pin piston rod, complicated operation inconvenience by dependence dish dynamic crankshaft 9.
2. the existing fixed instrument adopts the mode of double-side fastening, brings the burden in operation and the construction when making connection more firm, influences construction speed.
3. in the design of the piston rod of new model, need in the limited piston assembly hoisting process descending apart from the time, can cause the supreme stop of connecting rod cross cephalic disc, piston rod occurs with the situation that crosshead pin also fails to contact, this moment is if use former piston assembly setting tool, then the distance of piston rod apart from the cylinder body lower plane fixed, can't adjust.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of fixture that the marine diesel piston assembly is installed that is used for is provided.This fixture can overcome of the prior art can't the adjustment, and the problem of complicated operation can be adjusted in installation process the distance of piston rod and crosshead pin as required.And the fixture that the piston assembly of the utility model marine diesel is installed also has uses conveniently the advantage of easy operating.
The technical solution of the utility model:
The fixture that a kind of marine low speed diesel engine piston assembly is installed, this device includes location-plate, described location-plate is the flat board of rectangle, this location-plate is provided with first screw that penetrates this flat board that same straight line distributes, second screw and the 3rd screw, described first screw is positioned at an end of location-plate, be provided with one in this first screw and adjust bolt, this adjustment bolt passes described first screw, its front end is fixed in the positioning screw hole on the piston rod, the external screw thread of adjusting bolt between the nut of adjustment bolt and the location-plate is provided with one and movably adjusts nut, this adjustment nut is close to the upper surface of location-plate, respectively be provided with and adjust the reciprocal carrying bolt of bolt in described second screw and the 3rd screw, the front end of this carrying bolt is fixed in two reservation screws of cylinder block lower end, be with a steel pipe respectively on two carrying bolts, the two ends of this steel pipe are supported in the lower surface of cylinder block and the upper surface of location-plate respectively.
This fixture is fixed together piston rod and cylinder block, and can rotate as required and adjust the distance that nut comes regulating piston bar bottom and crosshead pin, is convenient to the two and assembles.
By the structure of fixture in the technique scheme, make to the utlity model has following advantage:
1. the utility model device solves original setting tool can't adjust the problem of piston rod apart from cylinder body lower plane distance, thereby when connecting crosshead pin and piston rod, with the crosshead pin dish to the relevant position, use and adjust bolt and adjust nut, can adjust piston rod within the specific limits, piston rod is moved down, greatly facilitate assembly work, and easy to operate, controllability is good.
2. the utility model adopts monolateral fixing mode, and form is more simple, and has simplified installation steps.
Description of drawings
Fig. 1 is the lifting schematic diagram of the piston assembly of marine low speed diesel engine.
Fig. 2 is the setting tool of the piston assembly of marine low speed diesel engine of the prior art when installing.
Fig. 3 is the schematic diagram of the piston assembly fixing device for installing of the utility model marine low speed diesel engine.
Among the figure:
1-piston head 2-cylinder sleeve 3-cylinder body 4-piston rod
5-stuffing-box 6-piston assembly fixture 7-connecting rod cross head assembly
8-frame 9-bent axle a1-props up tightening position screw a2-first bolt
The a3-bolt a4-second bolt 61-adjusts bolt 62-and adjusts nut
63-bolt 65-steel bushing
The specific embodiment
Below we come the piston assembly fixing device for installing of the utility model marine low speed diesel engine is described in further detail with specific embodiment in conjunction with the accompanying drawings, but can not limit protection domain of the present utility model with this.
Please see Figure 3, Fig. 3 is the schematic diagram of the piston assembly fixing device for installing of the utility model marine low speed diesel engine.As seen from the figure, the fixture that marine low speed diesel engine piston assembly of the present utility model is installed includes location-plate 63, this location-plate 63 is flat boards of a rectangle, location-plate 63 is provided with first screw 631 that penetrates this flat board that same straight line distributes, second screw 632 and the 3rd screw 633, described first screw 631 is positioned at an end of location-plate 63, be provided with one in first screw 631 and adjust bolt 61, this adjustment bolt 61 passes described first screw 631, adjusting bolt 61 front ends is fixed in the positioning screw hole 41 on the piston rod 4, the external screw thread of adjusting bolt 61 between the nut of adjustment bolt 61 and the location-plate 63 is provided with one and movably adjusts nut 62, this adjustment nut 62 is close to the upper surface of location-plate 63, respectively be provided with one and 61 reciprocal tight bolts 64 of adjustment bolt in described second screw 632 and the 3rd screw 633, the front end of two tight bolts 64 is individually fixed in two reservation screws 31 of cylinder block 3 lower ends, be with a steel pipe 65 respectively on two the tight bolts 64, the two ends of this steel pipe 65 are supported in the lower surface of cylinder block 3 and the upper surface of location-plate 63 respectively.
The lower end that tight bolt 64 is fixed in location-plate 63 cylinder block 3 is propped up in the piston assembly fixing device for installing utilization of marine low speed diesel engine of the present utility model, with adjusting bolt 61 location-plate 63 is fixed on the piston rod 4 then, adjusting an adjustment of installation nut 62 on the bolt 61 simultaneously, adjust the distance that nut 62 comes regulating piston bar 4 and location-plate 63 by turn, except piston rod 4 is supported, can also carry out the adjusting of distance, realize the utility model improvements over the prior art purpose.
The concrete application process of piston assembly fixing device for installing of marine low speed diesel engine of the present utility model is as follows:
At first, after two tight bolts 64 are passed second screw 632 and the 3rd screw 633 respectively, on the screw rod of a tight bolt 64 that appears second screw 632 and the 3rd screw 633, respectively wear a steel pipe 65, the end that to prop up tight bolt 64 again is fixed in the positioning screw hole of reserving cylinder block 3 lower ends, an end of steel pipe 65 is supported in the lower surface of cylinder block 3 at this moment, and the other end is supported in the upper surface of location-plate 63.
Secondly, twist on the external screw thread of adjusting bolt 61 adjusting nut 62, pass first screw 631 with adjusting a bolt 61 and tight bolt 64 rightabout, the front end of this adjustment bolt 61 is fixed in the positioning screw hole 41 of piston rod 4.
Once more, turning crankshaft 9 is with the lower end of connecting rod cross head assembly 7 upwards close piston rods 4, rotate and adjust nut 62, make and adjust bolt 61 downward slow moving, closely contact with connecting rod cross head assembly 7, then piston rod 4 and connecting rod cross head assembly 7 are fixed until the lower end of piston rod 4.
At last, will pull down in the positioning screw hole of tight bolt 64 on cylinder block 3, pull down adjusting in the screw 41 of bolt 61 on piston rod 4, the piston assembly fixing device for installing of whole marine low speed diesel engine is finished using, and finishes the installation of whole piston assembly.
Should be screwed onto adjustment bolt 61 with adjusting nut 62 earlier during installation, note adjusting nut 62 and should keep certain distance with the end of adjusting bolt 61, this distance then is the scope that piston rod 4 is reduced, and can suitably adjust according to type.The setting tool that uses will be adjusted distance at 60 machines and be set at 35mm at present.The assembly of adjusting bolt 61 and adjustment nut 62 is passed location-plate 3 backs tighten fully, then, two tight bolts 4 and steel pipes 5 are installed, piston is completely fixed with piston rod 4.
When connecting piston rod and crosshead pin, only need tighten and adjust nut 62, the distance that reduces to adjust nut 62 and adjust bolt 61 ends, thus piston rod 4 is moved down, contact with crosshead pin until piston rod 4.
Setting tool installation process of the present utility model is simple, easy to operate, and controllability is good, has solved the distance that existing piston assembly setting tool has been fixed piston rod and cylinder body lower plane, the problem of being inconvenient to adjust.More than be illustrated embodiments of the present utility model, can not limit protection domain of the present utility model with this.Protection domain of the present utility model also comprises other conspicuous for those skilled in the art conversion and substitutes.
Claims (1)
1. the marine low speed diesel engine piston assembly fixture of installing, this device comprises location-plate (63), it is characterized in that described location-plate (63) is the flat board of rectangle, this location-plate (63) is provided with first screw (631) that penetrates this flat board that same straight line distributes, second screw (632) and the 3rd screw (633), described first screw (631) is positioned at an end of location-plate (63), be provided with one in this first screw (631) and adjust bolt (61), this adjustment bolt (61) passes described first screw (631), its front end is fixed in the positioning screw hole (41) on the piston rod (4), the external screw thread of adjusting bolt (61) between the nut of adjustment bolt (61) and the location-plate (63) is provided with one and movably adjusts nut (62), this adjustment nut (62) is close to the upper surface of location-plate (63), respectively be provided with and adjust the reciprocal carrying bolt of bolt (61) (64) in described second screw (632) and the 3rd screw (633), the front end of this carrying bolt (64) is fixed in two reservation screws (31) of cylinder block (3) lower end, be with a steel pipe (65) on two carrying bolts (64) respectively, the two ends of this steel pipe (65) are supported in the lower surface of cylinder block (3) and the upper surface of location-plate (63) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200691382U CN201046528Y (en) | 2007-04-20 | 2007-04-20 | Fixing apparatus for erection of marine slow-run diesel engine piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200691382U CN201046528Y (en) | 2007-04-20 | 2007-04-20 | Fixing apparatus for erection of marine slow-run diesel engine piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201046528Y true CN201046528Y (en) | 2008-04-16 |
Family
ID=39299103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200691382U Expired - Lifetime CN201046528Y (en) | 2007-04-20 | 2007-04-20 | Fixing apparatus for erection of marine slow-run diesel engine piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201046528Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089476A (en) * | 2013-01-17 | 2013-05-08 | 合肥熔安动力机械有限公司 | Large marine low speed diesel engine piston fixing tool |
| CN104551644A (en) * | 2014-12-24 | 2015-04-29 | 北京泰诚信测控技术股份有限公司 | System for adjusting bearing rotating torque of main speed reducer and gear backlash of driving/driven gear pair |
| CN106334901A (en) * | 2016-10-19 | 2017-01-18 | 上海中船三井造船柴油机有限公司 | Positioning tool and method for assembling of crankshaft and chain wheel of marine low-speed diesel engine |
| CN107053050A (en) * | 2017-02-20 | 2017-08-18 | 中核(天津)科技发展有限公司 | Aligning positioning clamping device |
| CN107877413A (en) * | 2017-10-26 | 2018-04-06 | 中船动力有限公司 | Marine low speed diesel engine piston assembly on-hook frock and method |
| CN110549110A (en) * | 2019-07-31 | 2019-12-10 | 上海中船三井造船柴油机有限公司 | Installation method and auxiliary tool for dual-fuel low-speed diesel engine piston |
-
2007
- 2007-04-20 CN CNU2007200691382U patent/CN201046528Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089476A (en) * | 2013-01-17 | 2013-05-08 | 合肥熔安动力机械有限公司 | Large marine low speed diesel engine piston fixing tool |
| CN104551644A (en) * | 2014-12-24 | 2015-04-29 | 北京泰诚信测控技术股份有限公司 | System for adjusting bearing rotating torque of main speed reducer and gear backlash of driving/driven gear pair |
| CN104551644B (en) * | 2014-12-24 | 2017-08-04 | 北京泰诚信测控技术股份有限公司 | Main reducing gear bearing driving torque and the secondary backlash adjustment system of active and passive gear |
| CN106334901A (en) * | 2016-10-19 | 2017-01-18 | 上海中船三井造船柴油机有限公司 | Positioning tool and method for assembling of crankshaft and chain wheel of marine low-speed diesel engine |
| CN107053050A (en) * | 2017-02-20 | 2017-08-18 | 中核(天津)科技发展有限公司 | Aligning positioning clamping device |
| CN107877413A (en) * | 2017-10-26 | 2018-04-06 | 中船动力有限公司 | Marine low speed diesel engine piston assembly on-hook frock and method |
| CN110549110A (en) * | 2019-07-31 | 2019-12-10 | 上海中船三井造船柴油机有限公司 | Installation method and auxiliary tool for dual-fuel low-speed diesel engine piston |
| CN110549110B (en) * | 2019-07-31 | 2021-05-04 | 上海中船三井造船柴油机有限公司 | Installation method and auxiliary tool for dual-fuel low-speed diesel engine piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
|
| CX01 | Expiry of patent term |